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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<title>History of Ghostscript versions 5.n</title>
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<!-- $Id: History5.htm,v 1.41 2005/10/20 19:46:23 ray Exp $ -->
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<!--
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	WARNING: do not use Pete Kaiser's emacs function "gs-toc" alone to
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	re-create the table of contents here, because it will replace the
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	hand-edited TOC subheads with a separate subhead for each H2 in
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	the body of the file.  Or if you do, first look at the original
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	TOC to see how to edit it for visual conciseness.
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-->
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<link rel="stylesheet" type="text/css" href="gs.css" title="Ghostscript Style">
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</head>
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<body>
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<!-- [1.0 begin visible header] ============================================ -->
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<!-- [1.1 begin headline] ================================================== -->
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21 
<h1>History of Ghostscript versions 5.n</h1>
22 
 
23 
<!-- [1.1 end headline] ==================================================== -->
24 
 
25 
<!-- [1.2 begin table of contents] ========================================= -->
26 
 
27 
<h2>Table of contents</h2>
28 
 
29 
<blockquote><ul>
30 
<li><a href="#Version5.99">Version 5.99 (beta) (1999-12-18)</a>
31 
<ul>
32 
<li><a href="#5.99_Incompatible_changes">Incompatible changes</a>,
33 
    <a href="#5.99_Documentation">Documentation</a>,
34 
    <a href="#5.99_Procedures">Procedures</a>,
35 
    <a href="#5.99_Utilities">Utilities</a>,
36 
    <a href="#5.99_Drivers">Drivers</a>,
37 
    <a href="#5.99_Platforms">Platforms</a>,
38 
    <a href="#5.99_Fonts">Fonts</a>,
39 
    <a href="#5.99_PDF_writer">PDF writer</a>,
40 
    <a href="#5.99_Interpreter_PDF">Interpreter (PDF)</a>,
41 
    <a href="#5.99_Interpreter">Interpreter</a>,
42 
    <a href="#5.99_Streams">Streams</a>,
43 
    <a href="#5.99_Library">Library</a>
44 
</ul>
45 
<li><a href="#Version5.98">Version 5.98 (beta) (1999-12-01)</a>
46 
<ul>
47 
<li><a href="#5.98_Incompatible_changes">Incompatible changes</a>,
48 
    <a href="#5.98_Documentation">Documentation</a>,
49 
    <a href="#5.98_Procedures">Procedures</a>,
50 
    <a href="#5.98_Utilities">Utilities</a>,
51 
    <a href="#5.98_Drivers">Drivers</a>,
52 
    <a href="#5.98_Fonts">Fonts</a>,
53 
    <a href="#5.98_PDF_writer">PDF writer</a>,
54 
    <a href="#5.98_Interpreter_PDF">Interpreter (PDF)</a>,
55 
    <a href="#5.98_Interpreter">Interpreter</a>,
56 
    <a href="#5.98_Streams">Streams</a>,
57 
    <a href="#5.98_Library">Library</a>
58 
</ul>
59 
<li><a href="#Version5.97">Version 5.97 (beta) (11/22/99)</a>
60 
<ul>
61 
<li><a href="#5.97_Incompatible_changes">Incompatible changes</a>,
62 
    <a href="#5.97_Documentation">Documentation</a>,
63 
    <a href="#5.97_Procedures">Procedures</a>,
64 
    <a href="#5.97_Utilities">Utilities</a>,
65 
    <a href="#5.97_Drivers">Drivers</a>,
66 
    <a href="#5.97_Platforms">Platforms</a>,
67 
    <a href="#5.97_PDF_writer">PDF writer</a>,
68 
    <a href="#5.97_Interpreter">Interpreter</a>,
69 
    <a href="#5.97_Library">Library</a>
70 
</ul>
71 
<li><a href="#Version5.96">Version 5.96 (beta) (11/12/99)</a>
72 
<ul>
73 
<li><a href="#5.96_Incompatible_changes">Incompatible changes</a>,
74 
    <a href="#5.96_Documentation">Documentation</a>,
75 
    <a href="#5.96_Procedures">Procedures</a>,
76 
    <a href="#5.96_Utilities">Utilities</a>,
77 
    <a href="#5.96_Drivers">Drivers</a>,
78 
    <a href="#5.96_Platforms">Platforms</a>,
79 
    <a href="#5.96_PDF_writer">PDF writer</a>,
80 
    <a href="#5.96_Interpreter_PDF">Interpreter (PDF)</a>,
81 
    <a href="#5.96_Interpreter">Interpreter</a>,
82 
    <a href="#5.96_Streams">Streams</a>,
83 
    <a href="#5.96_Library">Library</a>
84 
</ul>
85 
<li><a href="#Version5.95">Version 5.95 (beta) (11/1/99)</a>
86 
<ul>
87 
<li><a href="#5.95_Incompatible_changes">Incompatible changes</a>,
88 
    <a href="#5.95_Documentation">Documentation</a>,
89 
    <a href="#5.95_Procedures">Procedures</a>,
90 
    <a href="#5.95_Utilities">Utilities</a>,
91 
    <a href="#5.95_Drivers">Drivers</a>,
92 
    <a href="#5.95_Platforms">Platforms</a>,
93 
    <a href="#5.95_Fonts">Fonts</a>,
94 
    <a href="#5.95_PDF_writer">PDF writer</a>,
95 
    <a href="#5.95_Interpreter_PDF">Interpreter (PDF)</a>,
96 
    <a href="#5.95_Interpreter">Interpreter</a>,
97 
    <a href="#5.95_Library">Library</a>
98 
</ul>
99 
<li><a href="#Version5.94">Version 5.94 (beta) (9/30/99)</a>
100 
<ul>
101 
<li><a href="#5.94_Incompatible_changes">Incompatible changes</a>,
102 
    <a href="#5.94_Documentation">Documentation</a>,
103 
    <a href="#5.94_Procedures">Procedures</a>,
104 
    <a href="#5.94_Utilities">Utilities</a>,
105 
    <a href="#5.94_Drivers">Drivers</a>,
106 
    <a href="#5.94_Platforms">Platforms</a>,
107 
    <a href="#5.94_Fonts">Fonts</a>,
108 
    <a href="#5.94_PDF_writer">PDF writer</a>,
109 
    <a href="#5.94_Interpreter_PDF">Interpreter (PDF)</a>,
110 
    <a href="#5.94_Interpreter">Interpreter</a>,
111 
    <a href="#5.94_Streams">Streams</a>,
112 
    <a href="#5.94_Library">Library</a>
113 
</ul>
114 
<li><a href="#Version5.93">Version 5.93 (beta) (9/11/99)</a>
115 
<ul>
116 
<li><a href="#5.93_Incompatible_changes">Incompatible changes</a>,
117 
    <a href="#5.93_Documentation">Documentation</a>,
118 
    <a href="#5.93_Procedures">Procedures</a>,
119 
    <a href="#5.93_Utilities">Utilities</a>,
120 
    <a href="#5.93_Drivers">Drivers</a>,
121 
    <a href="#5.93_Platforms">Platforms</a>,
122 
    <a href="#5.93_PDF_writer">PDF writer</a>,
123 
    <a href="#5.93_Interpreter_PDF">Interpreter (PDF)</a>,
124 
    <a href="#5.93_Interpreter">Interpreter</a>,
125 
    <a href="#5.93_Streams">Streams</a>,
126 
    <a href="#5.93_Library">Library</a>
127 
</ul>
128 
<li><a href="#Version5.92">Version 5.92 (beta) (9/2/99)</a>
129 
<ul>
130 
<li><a href="#5.92_Documentation">Documentation</a>,
131 
    <a href="#5.92_Procedures">Procedures</a>,
132 
    <a href="#5.92_Utilities">Utilities</a>,
133 
    <a href="#5.92_Drivers">Drivers</a>,
134 
    <a href="#5.92_PDF_writer">PDF writer</a>,
135 
    <a href="#5.92_Interpreter">Interpreter</a>,
136 
    <a href="#5.92_Streams">Streams</a>
137 
</ul>
138 
<li><a href="#Version5.91">Version 5.91 (beta) (8/30/99)</a>
139 
<ul>
140 
<li><a href="#5.91_Documentation">Documentation</a>,
141 
    <a href="#5.91_Utilities">Utilities</a>,
142 
    <a href="#5.91_Drivers">Drivers</a>,
143 
    <a href="#5.91_Platforms">Platforms</a>,
144 
    <a href="#5.91_Fonts">Fonts</a>,
145 
    <a href="#5.91_PDF_writer">PDF writer</a>,
146 
    <a href="#5.91_Library">Library</a>
147 
</ul>
148 
<li><a href="#Version5.90">Version 5.90 (beta) (8/20/99)</a>
149 
<ul>
150 
<li><a href="#5.90_Incompatible_changes">Incompatible changes</a>,
151 
    <a href="#5.90_Documentation">Documentation</a>,
152 
    <a href="#5.90_Procedures">Procedures</a>,
153 
    <a href="#5.90_Utilities">Utilities</a>,
154 
    <a href="#5.90_Drivers">Drivers</a>,
155 
    <a href="#5.90_Platforms">Platforms</a>,
156 
    <a href="#5.90_Fonts">Fonts</a>,
157 
    <a href="#5.90_PDF_writer">PDF writer</a>,
158 
    <a href="#5.90_Interpreter_PDF">Interpreter (PDF)</a>,
159 
    <a href="#5.90_Interpreter">Interpreter</a>,
160 
    <a href="#5.90_Streams">Streams</a>,
161 
    <a href="#5.90_Library">Library</a>
162 
</ul>
163 
<li>(Version 5.89 deliberately omitted.)
164 
<li><a href="#Version5.88">Version 5.88 (tester) (8/3/99)</a>
165 
<ul>
166 
<li><a href="#5.88_Incompatible_changes">Incompatible changes</a>,
167 
    <a href="#5.88_Documentation">Documentation</a>,
168 
    <a href="#5.88_Procedures">Procedures</a>,
169 
    <a href="#5.88_Drivers">Drivers</a>,
170 
    <a href="#5.88_Platforms">Platforms</a>,
171 
    <a href="#5.88_Fonts">Fonts</a>,
172 
    <a href="#5.88_Interpreter_PDF">Interpreter (PDF)</a>,
173 
    <a href="#5.88_Interpreter">Interpreter</a>,
174 
    <a href="#5.88_Streams">Streams</a>,
175 
    <a href="#5.88_Library">Library</a>
176 
</ul>
177 
<li><a href="#Version5.87">Version 5.87 (tester) (6/29/99)</a>
178 
<ul>
179 
<li><a href="#5.87_Incompatible_changes">Incompatible changes</a>,
180 
    <a href="#5.87_Documentation">Documentation</a>,
181 
    <a href="#5.87_Procedures">Procedures</a>,
182 
    <a href="#5.87_Drivers">Drivers</a>,
183 
    <a href="#5.87_Interpreter_PDF">Interpreter (PDF)</a>,
184 
    <a href="#5.87_Interpreter">Interpreter</a>,
185 
    <a href="#5.87_Library">Library</a>
186 
</ul>
187 
<li><a href="#Version5.86">Version 5.86 (tester) (6/14/99)</a>
188 
<ul>
189 
<li><a href="#5.86_Incompatible_changes">Incompatible changes</a>,
190 
    <a href="#5.86_Documentation">Documentation</a>,
191 
    <a href="#5.86_Procedures">Procedures</a>,
192 
    <a href="#5.86_Utilities">Utilities</a>,
193 
    <a href="#5.86_Drivers">Drivers</a>,
194 
    <a href="#5.86_Platforms">Platforms</a>,
195 
    <a href="#5.86_Fonts">Fonts</a>,
196 
    <a href="#5.86_Interpreter_PDF">Interpreter (PDF)</a>,
197 
    <a href="#5.86_Interpreter">Interpreter</a>,
198 
    <a href="#5.86_Streams">Streams</a>,
199 
    <a href="#5.86_Library">Library</a>
200 
</ul>
201 
<li><a href="#Version5.85">Version 5.85 (tester) (5/29/99)</a>
202 
<ul>
203 
<li><a href="#5.85_Incompatible_changes">Incompatible changes</a>,
204 
    <a href="#5.85_Documentation">Documentation</a>,
205 
    <a href="#5.85_Procedures">Procedures</a>,
206 
    <a href="#5.85_Utilities">Utilities</a>,
207 
    <a href="#5.85_Drivers">Drivers</a>,
208 
    <a href="#5.85_Interpreter_PDF">Interpreter (PDF)</a>,
209 
    <a href="#5.85_Interpreter">Interpreter</a>,
210 
    <a href="#5.85_Library">Library</a>
211 
</ul>
212 
<li><a href="#Version5.84">Version 5.84 (tester) (5/19/99)</a>
213 
<ul>
214 
<li><a href="#5.84_Incompatible_changes">Incompatible changes</a>,
215 
    <a href="#5.84_Procedures">Procedures</a>,
216 
    <a href="#5.84_Utilities">Utilities</a>,
217 
    <a href="#5.84_Drivers">Drivers</a>,
218 
    <a href="#5.84_Platforms">Platforms</a>,
219 
    <a href="#5.84_Interpreter">Interpreter</a>,
220 
    <a href="#5.84_Streams">Streams</a>,
221 
    <a href="#5.84_Library">Library</a>
222 
</ul>
223 
<li><a href="#Version5.83">Version 5.83 (tester) (5/13/99)</a>
224 
<ul>
225 
<li><a href="#5.83_Incompatible_changes">Incompatible changes</a>,
226 
    <a href="#5.83_Documentation">Documentation</a>,
227 
    <a href="#5.83_Procedures">Procedures</a>,
228 
    <a href="#5.83_Utilities">Utilities</a>,
229 
    <a href="#5.83_Interpreter">Interpreter</a>,
230 
    <a href="#5.83_Library">Library</a>
231 
</ul>
232 
<li><a href="#Version5.82">Version 5.82 (tester) (4/24/99)</a>
233 
<ul>
234 
<li><a href="#5.82_Incompatible_changes">Incompatible changes</a>,
235 
    <a href="#5.82_Documentation">Documentation</a>,
236 
    <a href="#5.82_Procedures">Procedures</a>,
237 
    <a href="#5.82_Utilities">Utilities</a>,
238 
    <a href="#5.82_Drivers">Drivers</a>,
239 
    <a href="#5.82_Platforms">Platforms</a>,
240 
    <a href="#5.82_Interpreter_PDF">Interpreter (PDF)</a>,
241 
    <a href="#5.82_Interpreter">Interpreter</a>,
242 
    <a href="#5.82_Library">Library</a>
243 
</ul>
244 
<li><a href="#Version5.81">Version 5.81 (tester) (4/14/99)</a>
245 
<ul>
246 
<li><a href="#5.81_Incompatible_changes">Incompatible changes</a>,
247 
    <a href="#5.81_Procedures">Procedures</a>,
248 
    <a href="#5.81_Utilities">Utilities</a>,
249 
    <a href="#5.81_Drivers">Drivers</a>,
250 
    <a href="#5.81_Fonts">Fonts</a>,
251 
    <a href="#5.81_Platforms">Platforms</a>,
252 
    <a href="#5.81_Interpreter_PDF">Interpreter (PDF)</a>,
253 
    <a href="#5.81_Interpreter">Interpreter</a>,
254 
    <a href="#5.81_Library">Library</a>
255 
</ul>
256 
<li><a href="#Version5.80">Version 5.80 (tester) (4/6/99)</a>
257 
<ul>
258 
<li><a href="#5.80_Incompatible_changes">Incompatible changes</a>,
259 
    <a href="#5.80_Procedures">Procedures</a>,
260 
    <a href="#5.80_Utilities">Utilities</a>,
261 
    <a href="#5.80_Drivers">Drivers</a>,
262 
    <a href="#5.80_Fonts">Fonts</a>,
263 
    <a href="#5.80_Platforms">Platforms</a>,
264 
    <a href="#5.80_Interpreter">Interpreter</a>,
265 
    <a href="#5.80_Interpreter_PDF">Interpreter (PDF)</a>,
266 
    <a href="#5.80_Streams">Streams</a>,
267 
    <a href="#5.80_Library">Library</a>
268 
</ul>
269 
<li>(Versions 5.74 - 5.79 deliberately omitted.)
270 
<li><a href="#Version5.73">Version 5.73 (tester) (3/19/99)</a>
271 
<ul>
272 
<li><a href="#5.73_Incompatible_changes">Incompatible changes</a>,
273 
    <a href="#5.73_Documentation">Documentation</a>,
274 
    <a href="#5.73_Procedures">Procedures</a>,
275 
    <a href="#5.73_Drivers">Drivers</a>,
276 
    <a href="#5.73_Interpreter">Interpreter</a>,
277 
    <a href="#5.73_Library">Library</a>
278 
</ul>
279 
<li><a href="#Version5.72">Version 5.72 (tester) (3/17/99)</a>
280 
<ul>
281 
<li><a href="#5.72_Incompatible_changes">Incompatible changes</a>,
282 
    <a href="#5.72_Documentation">Documentation</a>,
283 
    <a href="#5.72_Procedures">Procedures</a>,
284 
    <a href="#5.72_Utilities">Utilities</a>,
285 
    <a href="#5.72_Drivers">Drivers</a>,
286 
    <a href="#5.72_Fonts">Fonts</a>,
287 
    <a href="#5.72_Interpreter">Interpreter</a>,
288 
    <a href="#5.72_Interpreter_PDF">Interpreter (PDF)</a>,
289 
    <a href="#5.72_Streams">Streams</a>,
290 
    <a href="#5.72_Library">Library</a>
291 
</ul>
292 
<li><a href="#Version5.71">Version 5.71 (tester) (3/3/99)</a>
293 
<ul>
294 
<li><a href="#5.71_Incompatible_changes">Incompatible changes</a>,
295 
    <a href="#5.71_Documentation">Documentation</a>,
296 
    <a href="#5.71_Procedures">Procedures</a>,
297 
    <a href="#5.71_Utilities">Utilities</a>,
298 
    <a href="#5.71_Drivers">Drivers</a>,
299 
    <a href="#5.71_Fonts">Fonts</a>,
300 
    <a href="#5.71_Interpreter">Interpreter</a>,
301 
    <a href="#5.71_Interpreter_PDF">Interpreter (PDF)</a>,
302 
    <a href="#5.71_Streams">Streams</a>,
303 
    <a href="#5.71_Library">Library</a>
304 
</ul>
305 
<li><a href="#Version5.70">Version 5.70 (internal) (2/20/99)</a>
306 
<ul>
307 
<li><a href="#5.70_Incompatible_changes">Incompatible changes</a>,
308 
    <a href="#5.70_Documentation">Documentation</a>,
309 
    <a href="#5.70_Procedures">Procedures</a>,
310 
    <a href="#5.70_Utilities">Utilities</a>,
311 
    <a href="#5.70_Drivers">Drivers</a>,
312 
    <a href="#5.70_Fonts">Fonts</a>,
313 
    <a href="#5.70_Interpreter">Interpreter</a>,
314 
    <a href="#5.70_Interpreter_PDF">Interpreter (PDF)</a>,
315 
    <a href="#5.70_Streams">Streams</a>,
316 
    <a href="#5.70_Library">Library</a>
317 
</ul>
318 
<li><a href="#Version5.69">Version 5.69 (internal) (2/4/99)</a>
319 
<ul>
320 
<li><a href="#5.69_Procedures">Procedures</a>,
321 
    <a href="#5.69_Utilities">Utilities</a>,
322 
    <a href="#5.69_Drivers">Drivers</a>,
323 
    <a href="#5.69_Interpreter">Interpreter</a>,
324 
    <a href="#5.69_Streams">Streams</a>,
325 
    <a href="#5.69_Library">Library</a>
326 
</ul>
327 
<li><a href="#Version5.68">Version 5.68 (internal) (1/29/99)</a>
328 
<ul>
329 
<li><a href="#5.68_Incompatible_changes">Incompatible changes</a>,
330 
    <a href="#5.68_Documentation">Documentation</a>,
331 
    <a href="#5.68_Procedures">Procedures</a>,
332 
    <a href="#5.68_Utilities">Utilities</a>,
333 
    <a href="#5.68_Drivers">Drivers</a>,
334 
    <a href="#5.68_Fonts">Fonts</a>,
335 
    <a href="#5.68_Platforms">Platforms</a>,
336 
    <a href="#5.68_Interpreter">Interpreter</a>,
337 
    <a href="#5.68_Streams">Streams</a>,
338 
    <a href="#5.68_Library">Library</a>
339 
</ul>
340 
<li><a href="#Version5.67">Version 5.67 (internal) (1/8/99)</a>
341 
<ul>
342 
<li><a href="#5.67_Incompatible_changes">Incompatible changes</a>,
343 
    <a href="#5.67_Documentation">Documentation</a>,
344 
    <a href="#5.67_Procedures">Procedures</a>,
345 
    <a href="#5.67_Utilities">Utilities</a>,
346 
    <a href="#5.67_Drivers">Drivers</a>,
347 
    <a href="#5.67_Fonts">Fonts</a>,
348 
    <a href="#5.67_Interpreter">Interpreter</a>,
349 
    <a href="#5.67_Interpreter_PDF">Interpreter (PDF)</a>,
350 
    <a href="#5.67_Streams">Streams</a>,
351 
    <a href="#5.67_Library">Library</a>
352 
</ul>
353 
<li><a href="#Version5.66">Version 5.66 (internal) (11/25/98)</a>
354 
<ul>
355 
<li><a href="#5.66_Incompatible_changes">Incompatible changes</a>,
356 
    <a href="#5.66_Documentation">Documentation</a>,
357 
    <a href="#5.66_Procedures">Procedures</a>,
358 
    <a href="#5.66_Utilities">Utilities</a>,
359 
    <a href="#5.66_Drivers">Drivers</a>,
360 
    <a href="#5.66_Platforms">Platforms</a>,
361 
    <a href="#5.66_Interpreter">Interpreter</a>,
362 
    <a href="#5.66_Interpreter_PDF">Interpreter (PDF)</a>,
363 
    <a href="#5.66_Streams">Streams</a>,
364 
    <a href="#5.66_Library">Library</a>
365 
</ul>
366 
<li><a href="#Version5.65">Version 5.65 (internal) (11/13/98)</a>
367 
<ul>
368 
<li><a href="#5.65_Incompatible_changes">Incompatible changes</a>,
369 
    <a href="#5.65_Documentation">Documentation</a>,
370 
    <a href="#5.65_Procedures">Procedures</a>,
371 
    <a href="#5.65_Utilities">Utilities</a>,
372 
    <a href="#5.65_Drivers">Drivers</a>,
373 
    <a href="#5.65_Platforms">Platforms</a>,
374 
    <a href="#5.65_Interpreter">Interpreter</a>,
375 
    <a href="#5.65_Interpreter_PDF">Interpreter (PDF)</a>,
376 
    <a href="#5.65_Library">Library</a>
377 
</ul>
378 
<li><a href="#Version5.64">Version 5.64 (internal) (11/5/98)</a>
379 
<ul>
380 
<li><a href="#5.64_Incompatible_changes">Incompatible changes</a>,
381 
    <a href="#5.64_Documentation">Documentation</a>,
382 
    <a href="#5.64_Procedures">Procedures</a>,
383 
    <a href="#5.64_Drivers">Drivers</a>,
384 
    <a href="#5.64_Library">Library</a>
385 
</ul>
386 
<li><a href="#Version5.63">Version 5.63 (internal) (11/4/98)</a>
387 
<ul>
388 
<li><a href="#5.63_Incompatible_changes">Incompatible changes</a>,
389 
    <a href="#5.63_Documentation">Documentation</a>,
390 
    <a href="#5.63_Procedures">Procedures</a>,
391 
    <a href="#5.63_Drivers">Drivers</a>,
392 
    <a href="#5.63_Interpreter">Interpreter</a>,
393 
    <a href="#5.63_Library">Library</a>
394 
</ul>
395 
<li><a href="#Version5.62">Version 5.62 (internal) (10/31/98)</a>
396 
<ul>
397 
<li><a href="#5.62_Incompatible_changes">Incompatible changes</a>,
398 
    <a href="#5.62_Documentation">Documentation</a>,
399 
    <a href="#5.62_Drivers">Drivers</a>,
400 
    <a href="#5.62_Interpreter">Interpreter</a>,
401 
    <a href="#5.62_Library">Library</a>
402 
</ul>
403 
<li><a href="#Version5.61">Version 5.61 (internal) (10/28/98)</a>
404 
<ul>
405 
<li><a href="#5.61_Documentation">Documentation</a>,
406 
    <a href="#5.61_Procedures">Procedures</a>,
407 
    <a href="#5.61_Utilities">Utilities</a>,
408 
    <a href="#5.61_Drivers">Drivers</a>,
409 
    <a href="#5.61_Interpreter_PDF">Interpreter (PDF)</a>,
410 
    <a href="#5.61_Streams">Streams</a>,
411 
    <a href="#5.61_Library">Library</a>
412 
</ul>
413 
<li><a href="#Version5.60">Version 5.60 (internal) (10/18/98)</a>
414 
<ul>
415 
<li><a href="#5.60_Incompatible_changes">Incompatible changes</a>,
416 
    <a href="#5.60_Documentation">Documentation</a>,
417 
    <a href="#5.60_Procedures">Procedures</a>,
418 
    <a href="#5.60_Utilities">Utilities</a>,
419 
    <a href="#5.60_Drivers">Drivers</a>,
420 
    <a href="#5.60_Platforms">Platforms</a>,
421 
    <a href="#5.60_Interpreter">Interpreter</a>,
422 
    <a href="#5.60_Interpreter_PDF">Interpreter (PDF)</a>,
423 
    <a href="#5.60_Streams">Streams</a>,
424 
    <a href="#5.60_Library">Library</a>
425 
</ul>
426 
<li>(Versions 5.51 - 5.59 deliberately omitted.)
427 
<li><a href="#Version5.50">Version 5.50 (9/16/98)</a>
428 
<ul>
429 
<li><a href="#5.50_Documentation">Documentation</a>,
430 
    <a href="#5.50_Procedures">Procedures</a>,
431 
    <a href="#5.50_Utilities">Utilities</a>,
432 
    <a href="#5.50_Drivers">Drivers</a>,
433 
    <a href="#5.50_Platforms">Platforms</a>,
434 
    <a href="#5.50_Interpreter">Interpreter</a>,
435 
    <a href="#5.50_Interpreter_PDF">Interpreter (PDF)</a>,
436 
    <a href="#5.50_Library">Library</a>
437 
</ul>
438 
<li><a href="#Version5.40">Version 5.40 (beta) (9/10/98)</a>
439 
<ul>
440 
<li><a href="#5.40_Documentation">Documentation</a>,
441 
    <a href="#5.40_Procedures">Procedures</a>,
442 
    <a href="#5.40_Utilities">Utilities</a>,
443 
    <a href="#5.40_Drivers">Drivers</a>,
444 
    <a href="#5.40_Platforms">Platforms</a>,
445 
    <a href="#5.40_Library">Library</a>
446 
</ul>
447 
<li><a href="#Version5.39">Version 5.39 (beta) (9/8/98)</a>
448 
<ul>
449 
<li><a href="#5.39_Drivers">Drivers</a>,
450 
    <a href="#5.39_Library">Library</a>
451 
</ul>
452 
<li><a href="#Version5.38">Version 5.38 (beta) (9/3/98)</a>
453 
<ul>
454 
<li><a href="#5.38_Documentation">Documentation</a>,
455 
    <a href="#5.38_Drivers">Drivers</a>,
456 
    <a href="#5.38_Interpreter">Interpreter</a>,
457 
    <a href="#5.38_Library">Library</a>
458 
</ul>
459 
<li><a href="#Version5.37">Version 5.37 (beta) (8/31/98)</a>
460 
<ul>
461 
<li><a href="#5.37_Documentation">Documentation</a>,
462 
    <a href="#5.37_Procedures">Procedures</a>,
463 
    <a href="#5.37_Utilities">Utilities</a>,
464 
    <a href="#5.37_Drivers">Drivers</a>,
465 
    <a href="#5.37_Fonts">Fonts</a>,
466 
    <a href="#5.37_Interpreter">Interpreter</a>,
467 
    <a href="#5.37_Interpreter_PDF">Interpreter (PDF)</a>,
468 
    <a href="#5.37_Streams">Streams</a>,
469 
    <a href="#5.37_Library">Library</a>
470 
</ul>
471 
<li><a href="#Version5.36">Version 5.36 (beta) (8/25/98)</a>
472 
<ul>
473 
<li><a href="#5.36_Documentation">Documentation</a>,
474 
    <a href="#5.36_Utilities">Utilities</a>,
475 
    <a href="#5.36_Drivers">Drivers</a>,
476 
    <a href="#5.36_Platforms">Platforms</a>,
477 
    <a href="#5.36_Fonts">Fonts</a>,
478 
    <a href="#5.36_Interpreter">Interpreter</a>,
479 
    <a href="#5.36_Interpreter_PDF">Interpreter (PDF)</a>,
480 
    <a href="#5.36_Streams">Streams</a>,
481 
    <a href="#5.36_Library">Library</a>
482 
</ul>
483 
<li><a href="#Version5.35">Version 5.35 (beta) (8/18/98)</a>
484 
<ul>
485 
<li><a href="#5.35_Documentation">Documentation</a>,
486 
    <a href="#5.35_Drivers">Drivers</a>,
487 
    <a href="#5.35_Fonts">Fonts</a>,
488 
    <a href="#5.35_Interpreter">Interpreter</a>,
489 
    <a href="#5.35_Interpreter_PDF">Interpreter (PDF)</a>,
490 
    <a href="#5.35_Library">Library</a>
491 
</ul>
492 
<li><a href="#Version5.34">Version 5.34 (beta) (8/16/98)</a>
493 
<ul>
494 
<li><a href="#V5.34_Documentation">Documentation</a>,
495 
    <a href="#V5.34_Procedures">Procedures</a>,
496 
    <a href="#V5.34_Drivers">Drivers</a>,
497 
    <a href="#V5.34_Interpreter">Interpreter</a>,
498 
    <a href="#V5.34_Library">Library</a>
499 
</ul>
500 
<li><a href="#Version5.33">Version 5.33 (beta) (8/14/98)</a>
501 
<ul>
502 
<li><a href="#V5.33_Platforms">Platforms</a>,
503 
    <a href="#V5.33_Fonts">Fonts</a>,
504 
    <a href="#V5.33_Interpreter_PDF">Interpreter (PDF)</a>,
505 
    <a href="#V5.33_Library">Library</a>
506 
</ul>
507 
<li><a href="#Version5.32">Version 5.32 (beta) (8/13/98)</a>
508 
<ul>
509 
<li><a href="#V5.32_Procedures">Procedures</a>,
510 
    <a href="#V5.32_Interpreter">Interpreter</a>,
511 
    <a href="#V5.32_Interpreter_PDF">Interpreter (PDF)</a>,
512 
    <a href="#V5.32_Library">Library</a>
513 
</ul>
514 
<li><a href="#Version5.31">Version 5.31 (limited) (8/11/98)</a>
515 
<ul>
516 
<li><a href="#V5.31_Drivers">Drivers</a>,
517 
    <a href="#V5.31_Interpreter">Interpreter</a>,
518 
    <a href="#V5.31_Library">Library</a>
519 
</ul>
520 
<li><a href="#Version5.30">Version 5.30 (limited) (8/10/98)</a>
521 
<ul>
522 
<li><a href="#V5.30_Documentation">Documentation</a>,
523 
    <a href="#V5.30_Procedures">Procedures</a>,
524 
    <a href="#V5.30_Drivers">Drivers</a>,
525 
    <a href="#V5.30_Platforms">Platforms</a>,
526 
    <a href="#V5.30_Fonts">Fonts</a>,
527 
    <a href="#V5.30_Interpreter">Interpreter</a>,
528 
    <a href="#V5.30_Streams">Streams</a>,
529 
    <a href="#V5.30_Library">Library</a>
530 
</ul>
531 
<li><a href="#Version5.28">Version 5.28 (limited) (8/3/98)</a>
532 
<ul>
533 
<li><a href="#V5.28_Documentation">Documentation</a>,
534 
    <a href="#V5.28_Procedures">Procedures</a>,
535 
    <a href="#V5.28_Utilities">Utilities</a>,
536 
    <a href="#V5.28_Drivers">Drivers</a>,
537 
    <a href="#V5.28_Platforms">Platforms</a>,
538 
    <a href="#V5.28_Interpreter">Interpreter</a>,
539 
    <a href="#V5.28_Interpreter_PDF">Interpreter (PDF)</a>,
540 
    <a href="#V5.28_Streams">Streams</a>,
541 
    <a href="#V5.28_Library">Library</a>
542 
</ul>
543 
<li><a href="#Version5.27">Version 5.27 (limited) (7/18/98)</a>
544 
<ul>
545 
<li><a href="#V5.27_Documentation">Documentation</a>,
546 
    <a href="#V5.27_Procedures">Procedures</a>,
547 
    <a href="#V5.27_Drivers">Drivers</a>,
548 
    <a href="#V5.27_Platforms">Platforms</a>,
549 
    <a href="#V5.27_Interpreter">Interpreter</a>,
550 
    <a href="#V5.27_Interpreter_PDF">Interpreter (PDF)</a>,
551 
    <a href="#V5.27_Library">Library</a>
552 
</ul>
553 
<li><a href="#Version5.26">Version 5.26 (limited) (7/7/98)</a>
554 
<ul>
555 
<li><a href="#V5.26_Procedures">Procedures</a>,
556 
    <a href="#V5.26_Drivers">Drivers</a>,
557 
    <a href="#V5.26_Fonts">Fonts</a>,
558 
    <a href="#V5.26_Interpreter">Interpreter</a>,
559 
    <a href="#V5.26_Library">Library</a>
560 
</ul>
561 
<li><a href="#Version5.25">Version 5.25 (limited) (7/1/98)</a>
562 
<ul>
563 
<li><a href="#V5.25_Documentation">Documentation</a>,
564 
    <a href="#V5.25_Procedures">Procedures</a>,
565 
    <a href="#V5.25_Platforms">Platforms</a>,
566 
    <a href="#V5.25_Fonts">Fonts</a>,
567 
    <a href="#V5.25_Interpreter">Interpreter</a>,
568 
    <a href="#V5.25_Interpreter_PDF">Interpreter (PDF)</a>,
569 
    <a href="#V5.25_Drivers">Drivers</a>,
570 
    <a href="#V5.25_Library">Library</a>
571 
</ul>
572 
<li><a href="#Version5.24">Version 5.24 (limited) (6/17/98)</a>
573 
<ul>
574 
<li><a href="#V5.24_Documentation">Documentation</a>,
575 
    <a href="#V5.24_Procedures">Procedures</a>,
576 
    <a href="#V5.24_Utilities">Utilities</a>,
577 
    <a href="#V5.24_Drivers">Drivers</a>,
578 
    <a href="#V5.24_Platforms">Platforms</a>,
579 
    <a href="#V5.24_Fonts">Fonts</a>,
580 
    <a href="#V5.24_Interpreter">Interpreter</a>,
581 
    <a href="#V5.24_Interpreter_PDF">Interpreter (PDF)</a>,
582 
    <a href="#V5.24_Streams">Streams</a>,
583 
    <a href="#V5.24_Library">Library</a>
584 
</ul>
585 
<li><a href="#Version5.23">Version 5.23 (limited) (5/14/98)</a>
586 
<ul>
587 
<li><a href="#V5.23_Documentation">Documentation</a>,
588 
    <a href="#V5.23_Procedures">Procedures</a>,
589 
    <a href="#V5.23_Utilities">Utilities</a>,
590 
    <a href="#V5.23_Drivers">Drivers</a>,
591 
    <a href="#V5.23_Platforms">Platforms</a>,
592 
    <a href="#V5.23_Fonts">Fonts</a>,
593 
    <a href="#V5.23_Interpreter">Interpreter</a>,
594 
    <a href="#V5.23_Interpreter_PDF">Interpreter (PDF)</a>,
595 
    <a href="#V5.23_Streams">Streams</a>,
596 
    <a href="#V5.23_Library">Library</a>
597 
</ul>
598 
<li><a href="#Version5.22">Version 5.22 (limited) (2/19/98)</a>
599 
<ul>
600 
<li><a href="#V5.22_Documentation">Documentation</a>,
601 
    <a href="#V5.22_Procedures">Procedures</a>,
602 
    <a href="#V5.22_Utilities">Utilities</a>,
603 
    <a href="#V5.22_Drivers">Drivers</a>,
604 
    <a href="#V5.22_Interpreter">Interpreter</a>,
605 
    <a href="#V5.22_Interpreter_PDF">Interpreter (PDF)</a>,
606 
    <a href="#V5.22_Streams">Streams</a>,
607 
    <a href="#V5.22_Library">Library</a>
608 
</ul>
609 
<li><a href="#Version5.21">Version 5.21 (limited) (1/19/98)</a>
610 
<ul>
611 
<li><a href="#V5.21_Documentation">Documentation</a>,
612 
    <a href="#V5.21_Procedures">Procedures</a>,
613 
    <a href="#V5.21_Drivers">Drivers</a>,
614 
    <a href="#V5.21_Fonts">Fonts</a>,
615 
    <a href="#V5.21_Interpreter">Interpreter</a>,
616 
    <a href="#V5.21_Interpreter_PDF">Interpreter (PDF)</a>,
617 
    <a href="#V5.21_Library">Library</a>
618 
</ul>
619 
<li><a href="#Version5.20">Version 5.20 (limited) (1/8/98)</a>
620 
<ul>
621 
<li><a href="#V5.20_Documentation">Documentation</a>,
622 
    <a href="#V5.20_Procedures">Procedures</a>,
623 
    <a href="#V5.20_Utilities">Utilities</a>,
624 
    <a href="#V5.20_Drivers">Drivers</a>,
625 
    <a href="#V5.20_Platforms">Platforms</a>,
626 
    <a href="#V5.20_Fonts">Fonts</a>,
627 
    <a href="#V5.20_Interpreter">Interpreter</a>,
628 
    <a href="#V5.20_Interpreter_PDF">Interpreter (PDF)</a>,
629 
    <a href="#V5.20_Streams">Streams</a>,
630 
    <a href="#V5.20_Library">Library</a>
631 
</ul>
632 
<li><a href="#Version5.10">Version 5.10 (11/23/97)</a>
633 
<ul>
634 
<li><a href="#V5.10_Documentation">Documentation</a>,
635 
    <a href="#V5.10_Procedures">Procedures</a>,
636 
    <a href="#V5.10_Utilities">Utilities</a>,
637 
    <a href="#V5.10_Drivers">Drivers</a>,
638 
    <a href="#V5.10_Interpreter">Interpreter</a>,
639 
    <a href="#V5.10_Library">Library</a>
640 
</ul>
641 
<li><a href="#Version5.07">Version 5.07 (limited) (10/31/97)</a>
642 
<ul>
643 
<li><a href="#V5.07_Documentation">Documentation</a>,
644 
    <a href="#V5.07_Drivers">Drivers</a>,
645 
    <a href="#V5.07_Library">Library</a>
646 
</ul>
647 
<li><a href="#Version5.06">Version 5.06 (limited) (10/7/97)</a>
648 
<ul>
649 
<li><a href="#V5.06_Documentation">Documentation</a>,
650 
    <a href="#V5.06_Procedures">Procedures</a>,
651 
    <a href="#V5.06_Utilities">Utilities</a>,
652 
    <a href="#V5.06_Drivers">Drivers</a>,
653 
    <a href="#V5.06_Interpreter">Interpreter</a>,
654 
    <a href="#V5.06_Interpreter_PDF">Interpreter (PDF)</a>,
655 
    <a href="#V5.06_Library">Library</a>
656 
</ul>
657 
<li><a href="#Version5.05">Version 5.05 (limited) (9/24/97)</a>
658 
<ul>
659 
<li><a href="#V5.05_Platforms">Platforms</a>,
660 
    <a href="#V5.05_Drivers">Drivers</a>,
661 
    <a href="#V5.05_Interpreter">Interpreter</a>,
662 
    <a href="#V5.05_Interpreter_PDF">Interpreter (PDF)</a>
663 
</ul>
664 
<li><a href="#Version5.04">Version 5.04 (limited) (9/21/97)</a>
665 
<ul>
666 
<li><a href="#V5.04_Documentation">Documentation</a>,
667 
    <a href="#V5.04_Procedures">Procedures</a>,
668 
    <a href="#V5.04_Utilities">Utilities</a>,
669 
    <a href="#V5.04_Drivers">Drivers</a>,
670 
    <a href="#V5.04_Interpreter">Interpreter</a>,
671 
    <a href="#V5.04_Interpreter_PDF">Interpreter (PDF)</a>,
672 
    <a href="#V5.04_Library">Library</a>
673 
</ul>
674 
<li><a href="#Version5.03">Version 5.03 (8/8/97)</a>
675 
<ul>
676 
<li><a href="#V5.03_Documentation">Documentation</a>,
677 
    <a href="#V5.03_Procedures">Procedures</a>,
678 
    <a href="#V5.03_Drivers">Drivers</a>,
679 
    <a href="#V5.03_Platforms">Platforms</a>,
680 
    <a href="#V5.03_Fonts">Fonts</a>,
681 
    <a href="#V5.03_Interpreter">Interpreter</a>,
682 
    <a href="#V5.03_Interpreter_PDF">Interpreter (PDF)</a>,
683 
    <a href="#V5.03_Library">Library</a>
684 
</ul>
685 
<li><a href="#Version5.02">Version 5.02 (7/28/97)</a>
686 
<ul>
687 
<li><a href="#V5.02_Documentation">Documentation</a>,
688 
    <a href="#V5.02_Procedures">Procedures</a>,
689 
    <a href="#V5.02_Utilities">Utilities</a>,
690 
    <a href="#V5.02_Drivers">Drivers</a>,
691 
    <a href="#V5.02_Platforms">Platforms</a>,
692 
    <a href="#V5.02_Fonts">Fonts</a>,
693 
    <a href="#V5.02_Interpreter">Interpreter</a>,
694 
    <a href="#V5.02_Interpreter_PDF">Interpreter (PDF)</a>,
695 
    <a href="#V5.02_Library">Library</a>
696 
</ul>
697 
<li><a href="#Version5.01">Version 5.01 (6/22/97)</a>
698 
<ul>
699 
<li><a href="#V5.01_Documentation">Documentation</a>,
700 
    <a href="#V5.01_Procedures">Procedures</a>,
701 
    <a href="#V5.01_Utilities">Utilities</a>,
702 
    <a href="#V5.01_Drivers">Drivers</a>,
703 
    <a href="#V5.01_Platforms">Platforms</a>,
704 
    <a href="#V5.01_Interpreter">Interpreter</a>,
705 
    <a href="#V5.01_Interpreter_PDF">Interpreter (PDF)</a>,
706 
    <a href="#V5.01_Library">Library</a>
707 
</ul>
708 
<li><a href="#Version5.0">Version 5.0 (6/6/97)</a>
709 
<ul>
710 
<li><a href="#V5.0_Documentation">Documentation</a>,
711 
    <a href="#V5.0_Procedures">Procedures</a>,
712 
    <a href="#V5.0_Interpreter">Interpreter</a>,
713 
    <a href="#V5.0_Library">Library</a>
714 
</ul>
715 
</ul></blockquote>
716 
 
717 
<!-- [1.2 end table of contents] =========================================== -->
718 
 
719 
<!-- [1.3 begin hint] ====================================================== -->
720 
 
721 
<p>
722 
This document is a record of changes in Ghostscript releases numbered 5.n.
723 
For earlier versions, see the the history documents:
724 
 
725 
<blockquote>
726 
<a href="History4.htm">History of Ghostscript versions 4.n</a><br>
727 
<a href="History3.htm">History of Ghostscript versions 3.n</a><br>
728 
<a href="History2.htm">History of Ghostscript versions 2.n</a><br>
729 
<a href="History1.htm">History of Ghostscript versions 1.n</a>
730 
</blockquote>
731 
 
732 
<p>For other information, see the <a href="Readme.htm">Ghostscript
733 
overview</a>.
734 
 
735 
<!-- [1.3 end hint] ======================================================== -->
736 
 
737 
<hr>
738 
 
739 
<!-- [1.0 end visible header] ============================================== -->
740 
 
741 
<!-- [2.0 begin contents] ================================================== -->
742 
 
743 
<p>
744 
Within each release, news appears in the following order: Incompatible
745 
changes, Documentation, Procedures, Utilities, Drivers, Platforms, Fonts,
746 
Interpreter, Streams (included under Interpreter through release 2.9.9),
747 
Library.  Changes marked with a * were made available as patches to a
748 
previous release.
749 
 
750 
<hr>
751 
 
752 
<h2><a name="Version5.99"></a>Version 5.99 (beta) (1999-12-18)</h2>
753 
 
754 
<h3><a name="5.99_Incompatible_changes"></a>Incompatible changes</h3><pre>
755 
 
756 
(Procedures)
757 
	- All platform-specific makefiles must now define the Q macro.
758 
	- Ghostscript now exits with an error status if an error occurs in a
759 
file named on the command line, a -c command, or piped input.
760 
(Utilities)
761 
	- ps2epsi now disables setpagedevice: the bounding box of the EPSI
762 
output file is recorded only in the %%BoundingBox comment.
763 
(Drivers)
764 
	- The return type of gdev_vector_close_file is changed from void
765 
to int.
766 
(Interpreter)
767 
	- The name of the predefined stochastic halftone is changed to
768 
StochasticDefault.  (This change was actually made in 5.98.)
769 
	- The compht feature is replaced by stocht.
770 
	- Font searching now looks in FontResourceDir.
771 
	- The ASCIIHexEncode filter now produces upper-case output.
772 
(Library)
773 
	- The type returned by compiled halftone resource access procedures
774 
is changed.
775 
 
776 
</pre><h3><a name="5.99_Documentation"></a>Documentation</h3><pre>
777 
 
778 
Fixes problems:
779 
	- A stray character had gotten added to the beginning of a file.
780 
(doc/Use.htm)
781 
	- Many minor HTML errors had crept in.  (doc/*.htm, doc/gsdoc.el)
782 
 
783 
Updates the docmentation on the mswinpr2 driver.  (doc/Devices.htm)
784 
 
785 
Notes that GNU make currently does not work on OpenVMS.  (doc/Make.htm)
786 
 
787 
Documents the fact that x/y_pixels_per_inch are deprecated.  (gxdevcli.h)
788 
 
789 
Documents certain bugs in ps2pdf.  (doc/Ps2pdf.htm)
790 
 
791 
Documents the addition of FontResourceDir to the font search process.
792 
(doc/Use.htm)
793 
 
794 
Documents the new arrangement for B paper sizes.  (doc/Psfiles.htm,
795 
doc/Use.htm, doc/gs-vms.hlp, man/gs.1)
796 
 
797 
Removes the "under development" warning from the text API and
798 
get_bits_rectangle documentation, and adds a little more detail.
799 
(doc/Drivers.htm)
800 
 
801 
Adds new user-contributed documentation for installing and using Ghostscript
802 
fonts with X Windows.  (doc/Fonts.htm, doc/Readme.htm, doc/Use.htm)
803 
 
804 
Adds building with the Watcom compiler to the release process.
805 
(doc/Release.htm)
806 
 
807 
Adds an "Improving performance" section to the user documentation.
808 
(doc/Use.htm)
809 
 
810 
Adds a note to the C style guide about order of evaluation.
811 
(doc/C-style.htm)
812 
 
813 
Documents the new stocht.ps file.  (doc/Psfiles.htm)
814 
 
815 
</pre><h3><a name="5.99_Procedures"></a>Procedures</h3><pre>
816 
 
817 
Fixes problems:
818 
	- A missing dependency caused builds on certain platforms to fail.
819 
(int.mak)
820 
	- $(EXP) was missing before various utility invocations.  (int.mak)
821 
	- VMS converts all unquoted arguments to lower case.  In order to
822 
work around this, we have added a platform-specific makefile macro Q, which
823 
is defined as a quote mark on VMS and as an empty string on all other
824 
platforms, and used it to quote the few mixed-case values in the makefiles.
825 
We removed the obsolete QQ macro from os2.mak as well.  (cfonts.mak,
826 
dvx-head.mak, int.mak, openvms.mak, openvms.mmk, os2.mak, unixhead.mak,
827 
wccommon.mak, winlib.mak)
828 
	- PSRCDIR was incorrectly referenced as PNGSRCDIR in one place.
829 
(all-arch.mak)
830 
	- winint.mak had a conditional that Watcom's make program didn't
831 
accept.  (winint.mak)
832 
 
833 
Adds a makefile entry to allow compilation with libpng 1.0.5.  (libpng.mak)
834 
 
835 
Updates the Borland C++ makefile to work with C++Builder 4.  (bcwin32.mak)
836 
 
837 
Updates the Unix installation makefile to install stocht.ps.  (unixinst.mak)
838 
 
839 
</pre><h3><a name="5.99_Utilities"></a>Utilities</h3><pre>
840 
 
841 
Fixes problems:
842 
	- ps2epsi didn't disable setpagedevice.  (lib/ps2epsi)
843 
	- geninit needed &lt;stdlib.h&gt; for 'exit'.  (geninit.c)
844 
	- Some invocations of utilities didn't deal with VMS's habit of
845 
converting arguments to lower case.  (geninit.c, cfonts.mak)
846 
	- The ps2pdf*.bat files didn't produce a usage message if no
847 
arguments were provided.  (lib/ps2pdf.bat, lib/ps2pdf12.bat,
848 
lib/ps2pdf13.bat)
849 
	- Removes some warnings from the Windows uninstaller.
850 
(dwuninst.cpp)
851 
 
852 
Upgrades the halftone compiler to handle Type 5 halftones.  (genht.c)
853 
 
854 
Makes the initialization string compiler recognize sections of the code
855 
where binary tokens are allowed, and convert literal hex strings within such
856 
sections to binary-token strings, which take less space and load faster.
857 
(geninit.c)
858 
 
859 
Adds a utility file to define b0 ... b6 as selecting JIS B paper sizes.
860 
(unixinst.mak, lib/jispaper.ps)
861 
 
862 
Modifies the font printing utility to sort unencoded characters.
863 
(lib/prfont.ps)
864 
 
865 
Adds a small utility to help use the StochasticDefault halftone.
866 
(lib/stocht.ps)
867 
 
868 
</pre><h3><a name="5.99_Drivers"></a>Drivers</h3><pre>
869 
 
870 
Fixes problems:
871 
	- The output of the epswrite driver couldn't be embedded in another
872 
file, because it assumed it was invoked with an empty operand stack.
873 
(gdevps.c)
874 
	- "Vector" drivers didn't detect I/O errors such as filling up the
875 
disk.  (gdevvec.h, gdevpdf.c, gdevps.c, gdevpx.c, gdevvec.c)
876 
	- The bookkeeping for image color spaces when banding was incorrect,
877 
possibly causing memory access errors.  (gxclist.h, gxclimag.c, gxclist.c)
878 
	- The cljet5 driver didn't place the image on the page correctly.
879 
(gdevclj.c)
880 
	- 16-bit X11 devices with R/G/B widths other than 5/6/5 sometimes
881 
failed to map colors correctly.  (gdevxcmp.h, gdevxcmp.c)
882 
	- The cljet5c driver omitted a needed cast.  (gdevcljc.c)
883 
 
884 
Adds new x11rg16x and x11rg32x devices to test X Windows with unusual pixel
885 
layout.  (devs.mak, gdevxalt.c)
886 
 
887 
Works around a bug in Acrobat Distiller 4 (and perhaps some other PostScript
888 
interpreters) that causes an error if CCITTFaxDecode with /EndOfBlock = true
889 
is given data with no EOB (terminated by the end of the data stream
890 
instead).  (gdevps.c)
891 
 
892 
</pre><h3><a name="5.99_Platforms"></a>Platforms</h3><pre>
893 
 
894 
Fixes problems:
895 
	- The absence of mktemp on the Watcom platform caused a linking
896 
error under Windows.  (watc.mak, watcw32.mak, gp_iwatc.c, gp_mktmp.c)
897 
 
898 
</pre><h3><a name="5.99_Fonts"></a>Fonts</h3><pre>
899 
 
900 
Fixes problems:
901 
	- findfont, /Font resourcestatus, and /Font resourceforall weren't
902 
consistent.  (lib/gs_fonts.ps, lib/gs_res.ps)
903 
	- Very large TrueType fonts caused a stackoverflow.  (lib/gs_ttf.ps)
904 
 
905 
</pre><h3><a name="5.99_PDF_writer"></a>PDF writer</h3><pre>
906 
 
907 
Fixes problems:
908 
	- Errors in pdfmark and setdistillerparams were ignored (!).
909 
(lib/gs_pdfwr.ps)
910 
	- The PUT pdfmark didn't allow adding dictionaries to stream-type
911 
objects.  (The pdfmark documentation says this isn't allowed, but we think
912 
this is an oversight, since it is reasonable and unambiguous and Acrobat
913 
Distiller allows it.)  (gdevpdfm.c)
914 
	- The token scanner used to substitute object names in pdfmark
915 
parameters sometimes added an extra character on the end.  (gdevpdfr.c)
916 
	- ashow and [a]widthshow produced incorrect text spacing.  (bug
917 
introduced by an optimization in 5.97) (gdevpdft.c)
918 
	- setdistillerparams left its argument on the stack.
919 
(lib/gs_pdfwr.ps)
920 
	- 0-height images caused errors either at conversion or at rendering
921 
time.  (gdevpdfi.c)
922 
	- If the FontMatrix included a translation component, text was
923 
positioned incorrectly.  NOTE: this fix may not handle x/y/xyshow.
924 
(gdevpdft.c)
925 
	- Out-of-range user-space coordinates could get generated for
926 
rectangles.  NOTE: they can still get generated for general paths.
927 
(gdevpdfd.c)
928 
	- Widths weren't written for renamed built-in fonts.  We fixed this
929 
partly by improving the algorithm for recognizing built-in fonts.
930 
(gdevpdff.h, gdevpdff.c, gdevpdft.c)
931 
 
932 
Works around the Acrobat limitation that user-space coordinates must not
933 
exceed 32K.  (fix from Artifex) (gdevpdfp.c)
934 
 
935 
Works around an Acrobat Reader 3 bug with printing files including Type 3
936 
fonts: with the "Download Fonts Once" option, AR3 only emits the font subset
937 
referenced on the first page where the font appears.  (gdevpdfx.h,
938 
gdevpdf.c, gdevpdft.c)
939 
 
940 
</pre><h3><a name="5.99_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
941 
 
942 
Fixes problems:
943 
	- Type 3 fonts weren't handled properly as a marking context, so if
944 
a CharProc referenced a resource in the font, an error would occur.
945 
(lib/pdf_fonts.ps)
946 
	- 0-height images caused an error.  (lib/pdf_draw.ps)
947 
 
948 
</pre><h3><a name="5.99_Interpreter"></a>Interpreter</h3><pre>
949 
 
950 
Fixes problems:
951 
	- Errors weren't propagated properly.  (bug introduced in 5.98 by
952 
enhanced error recovery code) (imainarg.h, gs.c, imainarg.c)
953 
	- Errors in -c commands or in files named on the command line
954 
sometimes allowed execution to continue, and did not terminate with an
955 
abnormal status.  (lib/gs_init.ps)
956 
 
957 
Changes the binary token scanner so that if the stream buffer is in foreign
958 
space, binary-token strings will not be copied, but will be referenced
959 
directly in the buffer.  This parallels what is done for name strings.
960 
(iscanbin.c)
961 
 
962 
Changes the stochastic halftone from multiple Type 3s to a Type 5.
963 
(lib/ht_ccsto.ps, int.mak)
964 
 
965 
Replaces the compht feature with a new feature called stocht.  If this
966 
feature is selected, the StochasticDefault halftone resource will be
967 
pre-loaded into Ghostscript.  If COMPILE_INITS=1, all the halftone data
968 
(threshold array, order and bits arrays) will be efficiently compiled into
969 
the executable.  (int.mak)
970 
 
971 
Replaces (...\n) print with (...) = everywhere.  (lib/gs_cmdl.ps,
972 
lib/gs_fonts.ps, lib/gs_init.ps, lib/gs_setpd.ps, lib/pdf_base.ps,
973 
lib/pdf_font.ps, lib/pdf_main.ps, lib/pdf_sec.ps)
974 
 
975 
Adds support for JIS B paper sizes: statusdict will now include isob0..6 and
976 
jisb0..6 operators, with b0..6 normally aliased to the former.
977 
(lib/gs_statd.ps, lib/jispaper.ps)
978 
 
979 
Adds a b5tray procedure; limits the valid arguments for setpagetype to the
980 
Adobe-defined values 0 and 1.  (lib/gs_statd.ps)
981 
 
982 
Updates clients for the change in the gs_image_* API.  (zimage.c)
983 
 
984 
Makes the default halftone lookup procedure more reasonable.
985 
(lib/gs_init.ps, lib/gs_ll3.ps)
986 
 
987 
</pre><h3><a name="5.99_Streams"></a>Streams</h3><pre>
988 
 
989 
Fixes problems:
990 
	- An error condition when closing a file stream wasn't reported
991 
properly.  (sfxfd.c, sfxstdio.c)
992 
 
993 
For greater Adobe compatibility, changes the ASCIIHexEncode filter to
994 
produce upper-case output.  (sstring.c)
995 
 
996 
</pre><h3><a name="5.99_Library"></a>Library</h3><pre>
997 
 
998 
Fixes problems:
999 
	- The gs_image_* API didn't work for ImageType 3 images.  Fixing
1000 
this required a small (but backward-compatible) API change.  (fix mostly
1001 
provided by Artifex)  (gsimage.h, gsimage.c)
1002 
	- The change in the bbox device in 5.95 broke it for the case where
1003 
it was being used in a pipeline.  (gdevbbox.c)
1004 
	- A possible overflow wasn't detected when stroking lines with very
1005 
large coordinates.  (gxstroke.c)
1006 
	- A mask was sized incorrectly.  (gsdcolor.h)
1007 
 
1008 
Updates the runtime support for compiled halftones.  (gxdhtres.h, gscdefs.h,
1009 
gconf.c, gxclrast.c, gxhtbit.c)
1010 
 
1011 
Replaces all references to the now-deprecated x/y_pixels_per_inch with
1012 
HWResolution[0/1].  (gsdevice.c, gxclist.c, gxpcmap.c)
1013 
 
1014 
</pre>
1015 
 
1016 
<hr>
1017 
 
1018 
<h2><a name="Version5.98"></a>Version 5.98 (beta) (1999-12-01)</h2>
1019 
 
1020 
<h3><a name="5.98_Incompatible_changes"></a>Incompatible changes</h3><pre>
1021 
 
1022 
(Library)
1023 
	- The return type of init_proc is changed from void to int.
1024 
	- The return types of gs_lib_init* are changed from void to int.
1025 
(Interpreter)
1026 
	- The return types of gs_[main_]init*, gs_[main_]add_lib_path,
1027 
gs_[main_]set_lib_paths, and a number of internal initialization-related
1028 
procedures are changed from void to int.
1029 
 
1030 
</pre><h3><a name="5.98_Documentation"></a>Documentation</h3><pre>
1031 
 
1032 
Improves the documentation of the clist_render_rectangle procedure.
1033 
(gxclist.h)
1034 
 
1035 
Makes it clear that pre-public-release filesets should not be redistributed.
1036 
(doc/Tester.htm)
1037 
 
1038 
Clarifies that the parameters for the X driver are command line switches,
1039 
not X resources.  (doc/Use.htm)
1040 
 
1041 
Improves the documentation of ps2pdf in response to some user comments.
1042 
(doc/Ps2pdf.htm)
1043 
 
1044 
Documents the initial settings of the distiller parameters.
1045 
(doc/Ps2pdf.htm)
1046 
 
1047 
Documents the UniqueIDs assigned to Aladdin.  (lib/gs_fonts.ps)
1048 
 
1049 
Updates the documentation for the stochastic halftone mask.  (doc/Make.htm)
1050 
 
1051 
Removes some obsolete material.  (doc/Release.htm)
1052 
 
1053 
</pre><h3><a name="5.98_Procedures"></a>Procedures</h3><pre>
1054 
 
1055 
Fixes problems:
1056 
	- The new ps2pdf* scripts weren't included in the Unix install list.
1057 
(unixinst.mak)
1058 
	- The directory names were missing in BEGINFILES.  (openvms.mak)
1059 
	- The .pl and .sh scripts weren't included in the Unix install list.
1060 
(unixinst.mak)
1061 
 
1062 
Updates all-arch.mak with a newer version from its contributor.
1063 
(all-arch.mak)
1064 
 
1065 
Updates the makefiles for a change in eexec modularization.  (devs.mak,
1066 
int.mak, lib.mak)
1067 
 
1068 
</pre><h3><a name="5.98_Utilities"></a>Utilities</h3><pre>
1069 
 
1070 
Fixes problems:
1071 
	- The dvipdf usage message was incorrect.  (lib/dvipdf)
1072 
 
1073 
Adds a utility for mechanically adding the Adobe extended Latin characters
1074 
(primarily Central European accented letters) to a font.  Eventually we
1075 
would like to integrate this into the font loader and/or make extended
1076 
versions of the standard 35 fonts.  (lib/addxchar.ps)
1077 
 
1078 
</pre><h3><a name="5.98_Drivers"></a>Drivers</h3><pre>
1079 
 
1080 
Fixes problems:
1081 
	- psdf_sorted_glyphs_include didn't handle empty lists correctly.
1082 
(gdevpsdf.c)
1083 
	- A reference to a #defined constant hadn't been converted to upper
1084 
case.  (gdevpsdf.h)
1085 
	- Acrobat Reader couldn't handle &lt;&gt; as the definition of
1086 
Notice in an embedded font's FontInfo dictionary: it requires a ()
1087 
string. (gdevpsd1.c)
1088 
	- The [e]pswrite driver didn't take stroked paths into account when
1089 
computing the bounding box.  (gdevps.c)
1090 
 
1091 
Updates gdevwpr2.c with a new version from its most recent author.
1092 
(gdevwpr2.c)
1093 
 
1094 
</pre><h3><a name="5.98_Fonts"></a>Fonts</h3><pre>
1095 
 
1096 
Fixes problems:
1097 
	- The FONTPATH file scanner wasn't protected against errors.
1098 
(lib/gs_fonts.ps)
1099 
	- Some badly designed Chinese TrueType fonts, whose 'post' table
1100 
gives the name .null to all glyphs, didn't work properly.  (lib/gs_ttf.ps)
1101 
	- The shareware Katakana font had an incorrect UniqueID.
1102 
(fonts/fkarw.gsf)
1103 
 
1104 
Adds all of the PostScript 3 fonts to the intelligent substitution tables.
1105 
(lib/gs_fonts.ps)
1106 
 
1107 
Changes the FONTPATH scanner to allow a %%BeginFont: line as the first line
1108 
of a font.  Nothing in Adobe's documentation suggests that this is
1109 
acceptable, but some fonts have it.  (lib/gs_fonts.ps)
1110 
 
1111 
Releases an updated set of the URW fonts, fixing the braceleftbt problem in
1112 
the Symbol font and a couple of missing characters in the ZapfDingbats
1113 
fonts, and adding the Euro glyph to the alphabetic fonts.  The new archive
1114 
also includes fonts.scale and fonts.dir files for use with X Windows
1115 
(mkfontdir and xfs).
1116 
 
1117 
Centralizes the definition of Aladdin's XUIDs.  (lib/gs_fonts.ps,
1118 
lib/gs_ttf.ps)
1119 
 
1120 
</pre><h3><a name="5.98_PDF_writer"></a>PDF writer</h3><pre>
1121 
 
1122 
Fixes problems:
1123 
	- The algorithm for making font names unique didn't take subset
1124 
prefixes into account.  (gdevpdff.h, gdevpdff.c, gdevpdfw.c)
1125 
	- Computing character bounding boxes was taking an inordinate amount
1126 
of time.  (performance problem only) (gdevpdff.c)
1127 
	- The pdf_image_writer and pdf_image_enum structures didn't have GC
1128 
descriptors, possibly causing memory corruption.  (gdevpdfi.c)
1129 
	- PostScript files containing images with premature end-of-data were
1130 
converted to PDF files with premature end-of-data, which Acrobat doesn't
1131 
accept. (gdevpdfo.h, gdevpdfx.h, gdevpdfi.c, gdevpdfo.c, gdevpdfu.c)
1132 
	- Pattern resources whose image was written in-line omitted a needed
1133 
gsave (q).  (bug introduced in 5.94) (gdevpdfi.c)
1134 
	- The similarity between a font and a base font wasn't computed
1135 
correctly, leading to some unnecessary writing of Widths for standard fonts.
1136 
(gdevpdft.c)
1137 
	- Embedding a stream in the psdf_binary_writer caused garbage
1138 
collector problems, because there could be pointers to that stream from
1139 
elsewhere.  (gdevpsdf.h, gdevpsdf.c)
1140 
	- The algorithms for deciding whether a font was script or serif
1141 
were very inaccurate.  (The revised ones are only somewhat better.)
1142 
(gdevpdff.c)
1143 
	- Re-encoded characters in subset fonts weren't handled correctly.
1144 
We work around this by writing the entire font if the character doesn't
1145 
appear in the font's encoding.  This is inefficient but will always produce
1146 
correct output.  (gdevpdff.h, gdevpdff.c, gdevpdft.c, gdevpdfw.c)
1147 
	- The meaning of bit 6 in the Flags was supposed to have changed in
1148 
PDF 1.2, but didn't.  (gdevpdff.h, gdevpdff.c, gdevpdfw.c)
1149 
	- The Widths array didn't get written out for embedded subsets of
1150 
the built-in fonts.  (gdevpdfw.c)
1151 
	- Planar images weren't handled correctly, and could cause memory
1152 
corruption.  (gdevpdfi.c)
1153 
	- Patterns still weren't scaled correctly; in fact, the "fix" in
1154 
5.94 can't possibly have worked, and we don't understand why it seemed to.
1155 
(gdevpdfi.c)
1156 
 
1157 
Recants the belief that the default encoding for embedded fonts is
1158 
StandardEncoding (see 5.95): the appearance of this was a symptom of having
1159 
multiple fonts with the same name.  (gdevpdft.c)
1160 
 
1161 
Removes FONT_EMBED_UNKNOWN, which is meaningless (a decision is always made
1162 
about whether to embed a font).  (gdevpdff.h, gdevpdff.c, gdevpdft.c)
1163 
 
1164 
Changes the algorithm for picking the base font so that it produces more
1165 
efficient output for certain cases of re-encoded fonts.  (gdevpdft.c)
1166 
 
1167 
</pre><h3><a name="5.98_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
1168 
 
1169 
Fixes problems:
1170 
	- Fonts were getting renamed unnecessarily.  (performance and PDF
1171 
output size problem only) (lib/pdf_font.ps)
1172 
	- Fonts with Widths but no FontDescriptor caused an error.
1173 
(lib/pdf_font.ps)
1174 
	- TrueType fonts processed the Encoding key in the font the same way
1175 
as other font types, which is not correct.  (lib/pdf_font.ps)
1176 
	- For embedded Type 3 fonts, the Widths entry in a font didn't
1177 
override the width in the CharProc.  (lib/pdf_font.ps, lib/pdf_ops.ps)
1178 
	- If a page had multiple Contents streams, and one of the streams
1179 
ended with values on the operand stack, an error might occur.
1180 
(lib/pdf_main.ps)
1181 
	- Ts and Tz within a text object didn't take effect immediately.
1182 
(lib/pdf_ops.ps)
1183 
	- sc[n] and SC[N] could cause an error because Do left an extra item
1184 
on the stack temporarily.  (lib/pdf_draw.ps)
1185 
 
1186 
</pre><h3><a name="5.98_Interpreter"></a>Interpreter</h3><pre>
1187 
 
1188 
Fixes problems:
1189 
	- Getting the unscaled outline for a Type 1 font didn't disable
1190 
hinting.  (mostly a performance problem) (zchar1.c)
1191 
	- Error conditions during initialization weren't recognized.  Fixing
1192 
this required changing various return types from void to int.  (ialloc.h,
1193 
iinit.h, imain.h, interp.h, ialloc.c, iinit.c, imain.c)
1194 
	- HalftoneMode didn't affect setscreen or setcolorscreen.
1195 
(lib/gs_init.ps, lib/gs_ll3.ps)
1196 
 
1197 
Makes the interpreter quit with a message, rather than a stack dump, if it
1198 
can't open the initial device and DEBUG is not set.  (lib/gs_init.ps)
1199 
 
1200 
Adds .setlimitclamp and .currentlimitclamp operators to access the limit
1201 
clamp flag in the graphics state.  (zgstate.c)
1202 
 
1203 
Changes the names of the stochastic halftone mask to be more descriptive.
1204 
(lib/ht_ccsto.ps, int.mak, unixinst.mak)
1205 
 
1206 
</pre><h3><a name="5.98_Streams"></a>Streams</h3><pre>
1207 
 
1208 
Adds the ability to forbid using hex encoding when writing strings.
1209 
(spsdf.h, spsdf.c)
1210 
 
1211 
</pre><h3><a name="5.98_Library"></a>Library</h3><pre>
1212 
 
1213 
Fixes problems:
1214 
	- Computing the width of a glyph unnecessarily constructed the
1215 
entire outline.  (performance problem only) (gxtype1.c)
1216 
	- Getting the unscaled width of a glyph in a Type 1 font didn't
1217 
disable hinting.  (mostly a performance problem) (gxtype1.c.)
1218 
	- The "unknown device" GC descriptor is no longer used.  (gsdevice.c)
1219 
	- Some compilers *still* complained about end-of-loop code not being
1220 
reached.  (gxpath2.c)
1221 
	- Mixing float and double values sometimes caused spurious lines to
1222 
be drawn when stroking very short lines with large widths.  (fix from
1223 
Artifex) (gxpdash.c)
1224 
	- The code for handling crossing lines in the path filling algorithm
1225 
sometimes computed line crossings incorrectly, causing excessive
1226 
computation.  (gxfill.c)
1227 
	- When oversampling for anti-aliasing, the flatness parameter was
1228 
not scaled, leading to unnecessarily accurate curve rendering.  (gspaint.c)
1229 
	- An extra grestore in a Pattern PaintProc could cause a crash.
1230 
(gxpcmap.c)
1231 
	- Error conditions during initialization weren't recognized.  Fixing
1232 
this required changing the return type of init_proc, and various other
1233 
internal procedures, from void to int.  (std.h, gslib.h, gscdefs.h,
1234 
gshtscr.c, gsiodev.c, gslib.c, gsutil.c)
1235 
 
1236 
Splits off the Type 1 encryption/decryption code into a separate file for
1237 
sharing with the eexec streams.  (gscrypt1.c, gxtype1.c)
1238 
 
1239 
</pre>
1240 
 
1241 
<hr>
1242 
 
1243 
<h2><a name="Version5.97"></a>Version 5.97 (beta) (11/22/99)</h2>
1244 
 
1245 
<p>
1246 
This is the next beta for 6.0.  We believe the pdfwrite driver (ps2pdf) now
1247 
finally produces Acrobat-acceptable output, with reasonable handling of
1248 
fonts, and have also fixed the problem with high-level image banding.  We
1249 
are cautiously hopeful that this is a "real" beta candidate.
1250 
 
1251 
<h3><a name="5.97_Incompatible_changes"></a>Incompatible changes</h3><pre>
1252 
 
1253 
(Drivers)
1254 
	- The default CompatibilityLevel in the pdfwrite driver is now back
1255 
to 1.3.
1256 
(Library)
1257 
	- The seac_data procedure of a Type 1 font must now be able to
1258 
return the glyph and/or the actual outline data.
1259 
 
1260 
</pre><h3><a name="5.97_Documentation"></a>Documentation</h3><pre>
1261 
 
1262 
Fixes problems:
1263 
	- A &lt;br&gt; was missing.  (doc/Release.htm)
1264 
	- The final step of copying releases to www.aladdin.com was missing.
1265 
(doc.Release.htm)
1266 
 
1267 
Documents the new situation with the ps2pdf* scripts.  (doc/Ps2pdf.htm)
1268 
 
1269 
Documents the simplification of the pthreads code.  (doc/Helpers.htm,
1270 
doc/Make.htm)
1271 
 
1272 
Adds a requirement to the license that modifications include the name and
1273 
e-mail address of the author, and the date and purpose of the modification.
1274 
(doc/Public.htm)
1275 
 
1276 
Adds a link to the documentation for setdistillerparams.  (doc/Ps2pdf.htm)
1277 
 
1278 
</pre><h3><a name="5.97_Procedures"></a>Procedures</h3><pre>
1279 
 
1280 
Fixes problems:
1281 
	- On OpenVMS, the test for whether the bin and obj subdirectories
1282 
already existed was incorrect.  (openvms.mak, openvms.mmk)
1283 
	- The recently updated Borland/Inprise makefile deleted some temp
1284 
files prematurely.  (bcwin32.mak)
1285 
	- The dependencies for the Unix install-scripts and install-data
1286 
targets were incorrect.  (unixinst.mak)
1287 
 
1288 
Updates the RPM spec files.  (gs.rps, gs-fonts.rps, rpm-conf.dif)
1289 
 
1290 
Adds support for compilation with Borland/Inprise C++Builder 3.
1291 
(bcwin32.mak, winint.mak)
1292 
 
1293 
Adds a note on font installation under Red Hat Linux 6.  (doc/Install.htm)
1294 
 
1295 
</pre><h3><a name="5.97_Utilities"></a>Utilities</h3><pre>
1296 
 
1297 
Adds ps2pdf12 and ps2pdf13 scripts to select the PDF output level
1298 
explicitly; makes ps2pdf a wrapper for ps2pdf12.  (lib/ps2pdf,
1299 
lib/ps2pdf.bat, lib/ps2pdf12, lib/ps2pdf12.bat, lib/ps2pdf13,
1300 
lib/ps2pdf13.bat, lib/ps2pdfwr, lib/ps2pdfwr.bat)
1301 
 
1302 
Updates the Windows install/setup program to display the Aladdin start menu
1303 
folder on a successful install, so that the user gets some feedback that all
1304 
went well.  (dwinst.cpp, dwsetup.cpp)
1305 
 
1306 
</pre><h3><a name="5.97_Drivers"></a>Drivers</h3><pre>
1307 
 
1308 
Fixes problems:
1309 
	- The lj5{mono,gray} drivers didn't send the page size to the
1310 
printer.  (gdevpxut.h, gdevlj56.c, gdevpx.c, gdevpxut.c)
1311 
	- The pxl drivers didn't handle out-of-range points properly.
1312 
(gdevvec.c, gdevpx.c)
1313 
	- The bmpa drivers didn't produce multi-page output files correctly
1314 
-- all pages but the first were blank.  (The bmp format is supposed to be
1315 
single-page, but at least some readers handle multi-page files correctly.)
1316 
(gdevbmpa.c)
1317 
	- The code for writing embedded TrueType fonts was broken.  (bug
1318 
probably introduced in 5.9x) (gdevpsdt.c)
1319 
 
1320 
Removes an unused variable.  (gdevbmpa.c)
1321 
 
1322 
</pre><h3><a name="5.97_Platforms"></a>Platforms</h3><pre>
1323 
 
1324 
Replaces the 4 pthreads files, which included a dependence on the non-POSIX
1325 
&lt;semaphore.h&gt;, with a single file that uses only pthreads procedures.
1326 
(gp_psync.c, gp_posem.c [deleted], gp_pthr.c [deleted], gp_ptsem.c
1327 
[deleted], gp_semon.c [deleted])
1328 
 
1329 
</pre><h3><a name="5.97_PDF_writer"></a>PDF writer</h3><pre>
1330 
 
1331 
Fixes problems:
1332 
	- Whether or not to write the Widths array was implicit in the data
1333 
structures rather than explicit, so it was sometimes written unnecessarily.
1334 
(gdevpdfx.h, gdevpdff.c, gdevpdft.c)
1335 
	- Fonts based on the 14 built-in fonts didn't set BaseFont to the
1336 
name of the built-in font.  (gdevpdff.c)
1337 
	- The determination of whether a glyph was available was incorrect
1338 
for embedded fonts, leading some glyphs to be turned into bitmaps
1339 
unnecessarily.  (gdevpdft.c)
1340 
	- Apparently Acrobat Reader gets confused if different subsets of
1341 
the same font have different FirstChar and LastChar values, so we have to
1342 
write the full Widths array each time.  (gdevpdfx.h, gdevpdff.c, gdevpdft.c)
1343 
	- A structure member wasn't initialized when processing pdfmark
1344 
annotations, possibly causing a memory access error.  (gdevpdfm.c)
1345 
	- The typedef for gx_device_pdf had a typo.  (gdevpdfx.h)
1346 
	- Each embedded font subset had its own FontDescriptor and its own
1347 
font data, confusing Acrobat Reader.  Fixing this required sharing
1348 
FontDescriptors among multiple fonts and making FontDescriptors
1349 
pseudo-resources.  (gdevpdff.h, gdevpdfx.h, gdevpdf.c, gdevpdff.c,
1350 
gdevpdft.c, gdevpdfw.c)
1351 
	- Incrementally defined embedded Type 1 fonts didn't write out
1352 
correct Widths.  (gdevpdff.c)
1353 
	- PDF resources didn't consistently record the gs_id of the
1354 
structure they represented, possibly causing resources to be duplicated
1355 
unnecessarily.  (gdevpdff.c, gdevpdfu.c)
1356 
 
1357 
Reinstates PDF text output.  (gdevpdf.c)
1358 
 
1359 
Changes the default CompatibilityLevel in the pdfwrite device back to 1.3,
1360 
since the ps2pdf scripts now make it easy to choose the PDF level.
1361 
(gdevpdf.c)
1362 
 
1363 
When possible, uses the widths obtained from the font, rather than the
1364 
default implementation of text_process, to complete the text_process
1365 
operation.  This greatly speeds up the conversion process.  (gdevpdft.c)
1366 
 
1367 
Allows character remapping (but not reencoding) of TrueType fonts.
1368 
(gdevpdft.c)
1369 
 
1370 
Factors the definitions for cos objects and font-related objects into header
1371 
files more thoroughly.  (gdevpdff.h, gdevpdfo.h, gdevpdfx.h, gdevpdf.c,
1372 
gdevpdff.c, gdevpdfi.c, gdevpdfm.c, gdevpdfr.c, gdevpdft.c, gdevpdfu.c)
1373 
 
1374 
Makes the names of some structure elements correspond more directly to keys
1375 
in PDF directories.  (gdevpdff.h, gdevpdff.c, gdevpdft.c)
1376 
 
1377 
Splits off the font-writing code, since a source file was getting too big.
1378 
(gdevpdff.h, gdevpdff.c, gdevpdfw.c)
1379 
 
1380 
Adds CharSet information to embedded Type 1 font descriptors.  (gdevpdfw.c)
1381 
 
1382 
Makes all font names in the output unique, selected by static bool
1383 
MAKE_FONT_NAMES_UNIQUE.  (gdevpdff.h, gdevpdff.c, gdevpdft.c)
1384 
 
1385 
Reinstates support for one special case of composite fonts (8/8 mapping with
1386 
the high order byte always zero) that is used by the AdobePS4 Windows
1387 
driver.  (gdevpdft.c)
1388 
 
1389 
Changes the assumption about the default encoding for embedded TrueType
1390 
fonts from StandardEncoding to no known encoding.  (gdevpdft.c)
1391 
 
1392 
Changes FONT_EMBED_BASE14 to FONT_EMBED_STANDARD for greater
1393 
descriptiveness.  (gdevpdff.h, gdevpdff.c, gdevpdft.c)
1394 
 
1395 
</pre><h3><a name="5.97_Interpreter"></a>Interpreter</h3><pre>
1396 
 
1397 
Fixes problems:
1398 
	- The same-font test for Type 1 fonts didn't correctly identify
1399 
re-encoded fonts with unchanged metrics.  (zfont1.c)
1400 
	- If a save level was split into multiple internal save objects,
1401 
some changes could get undone before objects were finalized.  (isave.c)
1402 
	- When releasing all of memory, stable allocators weren't finalized.
1403 
(isave.c)
1404 
	- Some compilers gave annoying and needless warnings about integer
1405 
overflow.  (store.h)
1406 
	- There was a signed/unsigned char * mismatch.  (iccfont.c)
1407 
 
1408 
Adds a debugging procedure.  (idebug.h, idebug.c)
1409 
 
1410 
Changes the Type 1 font seac_data procedure to match the new API.
1411 
(zchar1.c)
1412 
 
1413 
</pre><h3><a name="5.97_Library"></a>Library</h3><pre>
1414 
 
1415 
Fixes problems:
1416 
	- The GC didn't know about the pointers to the tables for Indexed
1417 
color spaces when banding, occasionally causing the tables to be written as
1418 
garbage.  This is the real fix for the problem discovered in 5.96.
1419 
(gsiparam.h, gxclist.h, gxiparam.h, gxclimag.c, gxclist.c, gxclpath.c)
1420 
	- With 'async' drivers, multi-page files didn't render properly
1421 
(they got a rangecheck error on every page after the first one).
1422 
(gdevprna.c)
1423 
	- Some compilers still complained about end-of-loop code not being
1424 
reached.  (gxpath2.c)
1425 
	- The scaled font cache required that a font have a UID in order to
1426 
be a candidate for caching.  (gsfont.c)
1427 
	- An obsolete check caused slight discrepancies between banded and
1428 
non-banded output.  (gxstroke.c)
1429 
	- The glyph_outline procedure for TrueType fonts transformed the
1430 
width by the scaling matrix twice.  (gstype42.c)
1431 
 
1432 
Removes some now-unnecessary extern_st declarations.  (gdevbbox.c,
1433 
gdevplnx.c, gximage3.c)
1434 
 
1435 
Removes some initializations that read uninitialized locations and are
1436 
logically unnecessary.  (gsalloc.c, gscolor.c)
1437 
 
1438 
Adds makefile rules for compiling the MD5 implementation.  (lib.mak)
1439 
 
1440 
Makes the seac_data of a Type 1 font return the glyph and/or the actual
1441 
outline data.  This is necessary because some Type 1 fonts don't have the
1442 
accents in the same positions as StandardEncoding, but use seac anyway.
1443 
(gxfont1.h)
1444 
 
1445 
Changes the Type 1 font interpreter to match the new seac_data API.
1446 
(gxtype1.c)
1447 
 
1448 
</pre>
1449 
 
1450 
<hr>
1451 
 
1452 
<h2><a name="Version5.96"></a>Version 5.96 (beta) (11/12/99)</h2>
1453 
 
1454 
<p>
1455 
This is the next beta for 6.0.  To meet a need of our commercial licensing
1456 
partner for a PostScript LL3 release, we are releasing this fileset with all
1457 
font handling in the PDF writer disabled, as well as high-level image
1458 
banding.  This is a temporary measure: we will reinstate PDF text in 5.97,
1459 
and high-level image banding as soon as we can straighten out its memory
1460 
management problems.
1461 
 
1462 
<h3><a name="5.96_Incompatible_changes"></a>Incompatible changes</h3><pre>
1463 
 
1464 
(Procedures)
1465 
	- All Unix 'make' programs must now predefine MAKE as the name of
1466 
the program.
1467 
(Interpreter)
1468 
	- zcolor_remap_one now returns o_push_estack rather than 0 in the
1469 
case where it doesn't actually have to sample the procedure.
1470 
(Library)
1471 
	- Multi-plane halftones (when needed) are now used for all CMYK
1472 
devices, not only if setcolorscreen was executed.
1473 
	- Font implementors must now provide a same_font procedure.
1474 
 
1475 
</pre><h3><a name="5.96_Documentation"></a>Documentation</h3><pre>
1476 
 
1477 
Makes it clear that gsnup.ps is very simple and naive.  (doc/Psfiles.htm,
1478 
lib/gsnup.ps)
1479 
 
1480 
Documents the new -Z_ switch.  (doc/Use.htm)
1481 
 
1482 
Documents that SYNC=nosync allows building on systems that don't support
1483 
multi-threading.  (doc/Make.htm)
1484 
 
1485 
Adds documentation for building on Macintosh Rhapsody systems.
1486 
(doc/Make.htm)
1487 
 
1488 
Adds a reference to the new all-arch.mak file.  (doc/Helpers.htm,
1489 
doc/Make.htm)
1490 
 
1491 
Notes that ps2pdf does preserve the color space for images.
1492 
(doc/Ps2pdf.htm)
1493 
 
1494 
Documents the new self-extracting archive for MS Windows.  (doc/Install.htm,
1495 
doc/Release.htm)
1496 
 
1497 
Further improves the documentation of the PDF text machinery.  (gdevpdfx.h)
1498 
 
1499 
Reorganizes the build information for Unix.  (doc/Make.htm)
1500 
 
1501 
Adds information on building Ghostscript under BSDI.  (doc/Make.htm)
1502 
 
1503 
Notes that versions of zlib before 1.1.3 may cause an error on rare
1504 
occasions.  (zlib.mak)
1505 
 
1506 
Fixes a few other minor problems.  (doc/Current.htm, doc/Devices.htm,
1507 
doc/DLL.htm, doc/Install.htm, doc/Language.htm, doc/Make.htm,
1508 
doc/New-user.htm, doc/Ps2pdf.htm, doc/Source.htm, doc/Use.htm)
1509 
 
1510 
</pre><h3><a name="5.96_Procedures"></a>Procedures</h3><pre>
1511 
 
1512 
Fixes problems:
1513 
	- dctd.dev and dcte.dev were defined in $(PSD), but referenced in
1514 
$(GLD).  (devs.mak, int.mak, lib.mak)
1515 
	- pipe.dev was defined in $(GLD), but referenced in $(PSD).
1516 
(bcwin32.mak, dvx-gcc.mak, msvc32.mak, unix-gcc.mak, unixansi.mak,
1517 
unixtrad.mak)
1518 
	- XLIBDIRS was included in the linker command even if none of the
1519 
X drivers were used.  (devs.mak, dvx-tail.mak, ugcclib.mak, unixlink.mak)
1520 
	- The OpenVMS makefile didn't create the obj and bin directories
1521 
properly.  (openvms.mak)
1522 
	- 'make debug' and 'make pg' didn't work on Unix systems where the
1523 
make program was named something other than make.  (unix-end.mak)
1524 
 
1525 
Introduces a new top-level makefile macro, STDLIBS, that is -lm for all
1526 
reasonable platforms but null for Rhapsody.  (dvx-gcc.mak, dvx-tail.mak,
1527 
ugcclib.mak, unix-gcc.mak, unixansi.mak, unixlink.mak, unixtrad.mak)
1528 
 
1529 
Adds Nelson Beebe's contributed multi-architecture Unix makefile.
1530 
(all-arch.mak)
1531 
 
1532 
Makes it theoretically possible in theory to build the new Windows
1533 
install/uninstall program with the Borland compiler.  However, since this
1534 
requires Borland C++ 4.52 and we only have 4.5, this is disabled in
1535 
bcwin32.mak.  (bcwin32.mak, winint.mak)
1536 
 
1537 
</pre><h3><a name="5.96_Utilities"></a>Utilities</h3><pre>
1538 
 
1539 
Fixes problems:
1540 
	- The default for gsnup.ps was 3x2 landscape, rather than 2x2
1541 
portrait.  (lib/gsnup.ps)
1542 
	- gslp.ps was broken (by the changes made to support gsnup.ps).
1543 
(lib/gslp.ps)
1544 
 
1545 
Adds a -link switch to genconf, to allow verbatim copying of commands into
1546 
the linker command line.  (genconf.c)
1547 
 
1548 
Edits files to add missing $Id lines and module summary comments, and to
1549 
delimit module summary comments from further material.  (dwinst.h,
1550 
dwsetup.h, dwuninst.h, bench.c, dwuninst.cpp)
1551 
 
1552 
Makes it possible to build the new Windows install/uninstall program with
1553 
the Borland compiler.  (dwinst.cpp, dwsetup.cpp, dwsetup.def, dwsetup.rc,
1554 
dwuninst.cpp, dwuninst.def)
1555 
 
1556 
</pre><h3><a name="5.96_Drivers"></a>Drivers</h3><pre>
1557 
 
1558 
Fixes problems:
1559 
	- Embedded Type 1 fonts lacked some 'def' commands.  (gdevpsd1.c)
1560 
	- Multiple Master Font instances weren't written out correctly.
1561 
(gdevpsd1.c)
1562 
 
1563 
Edits files to add missing $Id lines and module summary comments, and to
1564 
delimit module summary comments from further material.  (gdev8bcm.h,
1565 
gdevht.h, gdevpccm.h, gdevpcl.h, gdevsvga.h, gdevx.h, gdev3852.c,
1566 
gdev8510.c, gdevadmp.c, gdevcd8.c, gdevcif.c, gdevclj.c, gdevhl7x.c,
1567 
gdevifno.c, gdevimgn.c, gdevl31s.c, gdevmeds.c, gdevmswn.c, gdevos2p.c,
1568 
gdevpe.c, gdevpm.c, gdevsj48.c, gdevtknk.c, gdevupd.c, gdevwddb.c,
1569 
gdevwpr2.c, gdevwprn.c)
1570 
 
1571 
</pre><h3><a name="5.96_Platforms"></a>Platforms</h3><pre>
1572 
 
1573 
Fixes problems:
1574 
	- The pthreads wrapper had a procedure type mismatch.  We fixed this
1575 
by making it allocate and free a wrapper object, as the Windows wrapper
1576 
does.  (gp_pthr.c)
1577 
 
1578 
Edits files to add missing $Id lines and module summary comments, and to
1579 
delimit module summary comments from further material.  (dwimg.h, dwmain.h,
1580 
gsdll.h, gp_msio.c, gp_mswin.c)
1581 
 
1582 
Removes an unnecessary #include &lt;semaphore.h&gt;.  (gp_semon.c)
1583 
 
1584 
Adds a module that implements semaphores using the pthreads mutex
1585 
facilities, as an alternative to gp_posem.c.  Unfortunately, using this
1586 
module causes immediate crashes on both Linux and BSDI, and we don't know
1587 
why.  (Let us know if you figure it out.)  (gp_ptsem.c)
1588 
 
1589 
</pre><h3><a name="5.96_PDF_writer"></a>PDF writer</h3><pre>
1590 
 
1591 
Fixes problems:
1592 
	- The character and word spacing weren't recognized as being reset
1593 
by a PDF grestore.  (gdevpdfx.h, gdevpdfu.c)
1594 
	- Fonts that couldn't be embedded were always converted to bitmaps,
1595 
rather than becoming candidates for non-embedded representation (if
1596 
EmbedAllFonts is false and the font doesn't appear on the AlwaysEmbed list).
1597 
(gdevpdfx.h, gdevpdff.c, gdevpdft.c)
1598 
	- Stream-type Cos objects were written with no (0-length) data.
1599 
(gdevpdfm.c)
1600 
	- Reencoded base 14 fonts were not recognized as such, leading to
1601 
excessive font embedding.  (gdevpdfx.h, gdevpdf.c, gdevpdff.c, gdevpdft.c)
1602 
	- Fonts were embedded by default even if EmbedAllFonts was false.
1603 
(gdevpdft.c)
1604 
 
1605 
Changes MaxSubsetPct to 35 to match Acrobat Distiller.  (gdevpsdf.h)
1606 
 
1607 
Adds some tracing output (-Z_).  (gdevpdff.c, gdevpdft.c)
1608 
 
1609 
Temporarily disables font handling in the PDF writer, to meet a need of our
1610 
commercial licensing partner.  All text will be converted to code-scrambled
1611 
Type 3 bitmap fonts.  (gdevpdf.c)
1612 
 
1613 
</pre><h3><a name="5.96_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
1614 
 
1615 
Fixes problems:
1616 
	- The sh operator caused an invalidaccess error for shadings that
1617 
required a DataSource.  (lib/pdf_draw.ps)
1618 
	- The test for whether a Widget appearance was a Form or a
1619 
collection of sub-appearances was incorrect, causing an /undefined error in
1620 
the latter case.  (lib/pdf_draw.ps)
1621 
	- If the FontName in a Font descriptor differed from the BaseFont
1622 
name in the Font object, the interpreter used the two inconsistently,
1623 
sometimes causing the wrong font to be used.  (lib/pdf_font.ps)
1624 
	- ICCBased color spaces caused an error.  (lib/pdf_draw.ps)
1625 
 
1626 
Works around the fact that Acrobat Distiller produces files in which a
1627 
Widget's Form appearance lacks Type and Subtype keys.  (lib/pdf_draw.ps)
1628 
 
1629 
</pre><h3><a name="5.96_Interpreter"></a>Interpreter</h3><pre>
1630 
 
1631 
Fixes problems:
1632 
	- Failure in allocating the name table would cause a crash.
1633 
(iname.c)
1634 
	- Shadings with procedure-based filters didn't work.
1635 
(lib/gs_ll3.ps, ifilter.h, zfileio.c, zfproc.c)
1636 
	- Some compilers complained about arithmetic on an enum.  (iparam.c)
1637 
	- Setting a transfer or similar function to the identity function
1638 
didn't set the cached values, so the setting didn't consistently take
1639 
effect.  (icolor.h, zcolor.c)
1640 
	- If the C library's implementation of sprintf with a %g format ever
1641 
produced a number with an exponent but no decimal point, a crash would
1642 
occur.  (iutil.c)
1643 
	- The PageDeviceName page device parameter wasn't supported.
1644 
(lib/gs_lev2.ps, lib/gs_setpd.ps)
1645 
	- A public procedure wasn't declared extern if DEBUG wasn't set.
1646 
(igc.h)
1647 
	- Because of a typo, loading resources automatically from a file
1648 
always failed.  (bug introduced in 5.94) (lib/gs_res.ps)
1649 
 
1650 
Edits files to add missing $Id lines and module summary comments, and to
1651 
delimit module summary comments from further material.  (files.h, iastate.h,
1652 
ibnum.h, ichar.h, ifilter.h, iimage.h, iimage2.h, iparam.h, isave.h,
1653 
iscan.h, isstate.h, istream.h, iutil.h, opcheck.h, scanchar.h)
1654 
 
1655 
Adds a font similarity testing procedure for Type 1/2/4 fonts.  (zfont1.c)
1656 
 
1657 
</pre><h3><a name="5.96_Streams"></a>Streams</h3><pre>
1658 
 
1659 
Edits files to add missing $Id lines and module summary comments, and to
1660 
delimit module summary comments from further material.  (sbhc.h, sbtx.h,
1661 
sbwbs.h, sdct.h, scfdgen.c, scfdtab.c, shcgen.h, siscale.h, sjpeg.h,
1662 
slzwx.h, smtf.h, spdiffx.h, spngpx.h, srlx.h)
1663 
 
1664 
</pre><h3><a name="5.96_Library"></a>Library</h3><pre>
1665 
 
1666 
Fixes problems:
1667 
	- Making a transformed font inappropriately copied the font's
1668 
notification list.  (gsfont.c)
1669 
	- Some compilers complained about end-of-loop code not being
1670 
reached.  (gxpath2.c)
1671 
	- The first two arguments of scale_delta was swapped, causing
1672 
anomalous output for certain Type 1 fonts with curves where the starting and
1673 
ending points had the same X or Y coordinate.  (gxhint3.c)
1674 
	- Large smoothness values produced blocky output.  (gxshade.c)
1675 
	- When banding, in a region where a CMYK halftone had no K at all,
1676 
the output was likely to be black rather than the correct color.  (gxcht.c)
1677 
	- Interpolated images with mirrored X scaling weren't mirrored.
1678 
(gxiscale.c)
1679 
	- Interpolated images were truncated.  (gxiscale.c)
1680 
	- Halftone caches could have a dangling pointer to a transfer map in
1681 
the halftone order.  (gxht.c)
1682 
	- The next-character code returned for kshow was the same as the
1683 
current character.  (bug probably introduced in 5.86) (gstext.c)
1684 
	- The GC didn't know about the pointers to the tables for Indexed
1685 
color spaces when banding, occasionally causing the tables to be written as
1686 
garbage.  In the process of investigating this, we discovered that the GC
1687 
didn't know about *any* of the pointers in the structures used to track
1688 
banded images.  ****** NOT FIXED, TOO MUCH RISK OF INTRODUCING FURTHER
1689 
BUGS. ****** Instead, we disabled high-level image banding in this fileset.
1690 
(gxclimag.c)
1691 
 
1692 
Changes the name of a variable from ppc to ppcr, because an Apple compiler
1693 
inappropriately defines the name ppc when compiling on a PowerPC.
1694 
(gxshade6.c)
1695 
 
1696 
Edits files to add missing $Id lines and module summary comments, and to
1697 
delimit module summary comments from further material.  (gdevbbox.h,
1698 
gscoord.h, gscpixel.h, gsfname.h, gsfont.h, gsimage.h, gslib.h, gsmdebug.h,
1699 
gspaint.h, gspath.h, gspath2.h, gxalloc.h, gxclipm.h, gxclpage.h,
1700 
gxclpath.h, gxcmap.h, gxcoord.h, gxcpath.h, gxdda.h, gxdevmem.h, gxfcache.h,
1701 
gxfont.h, gximage.h, gxiodev.h, gxpaint.h, gxpath.h, gxpcolor.h, gzacpath.h,
1702 
gzcpath.h, gzht.h, gzpath.h, md5.h, gxdither.c, md5.c)
1703 
 
1704 
Adds a prototype for debug_find_pointers.  (gxalloc.h)
1705 
 
1706 
Adds a font procedure for testing whether two fonts are the same in various
1707 
ways.  This is needed so that the PDF writer can do a reasonable job of
1708 
identifying reencoded and renamed versions of the base 14 fonts.  (gxfont.h,
1709 
gsfont.c)
1710 
 
1711 
Changes a macro to a procedure and improves some commenting.  (gxhint3.c)
1712 
 
1713 
Changes the halftoning code so that multi-plane halftones are always used on
1714 
CMYK devices, even if only a single halftone is set (setscreen or
1715 
HalftoneType 1).  (gxcht.c, gxdither.c)
1716 
 
1717 
</pre>
1718 
 
1719 
<hr>
1720 
 
1721 
<h2><a name="Version5.95"></a>Version 5.95 (beta) (11/1/99)</h2>
1722 
 
1723 
<p>
1724 
There were several new problems in 5.94, some of them severe.  We hope this
1725 
beta candidate fixes them without introducing any new ones.  It also fixes
1726 
some minor problems not reported in 5.93.
1727 
 
1728 
<p>
1729 
We think we have finally found the right workarounds for Acrobat and
1730 
specification problems so that pdfwrite output (with CompatibilityLevel
1731 
either 1.2 or 1.3) both conforms as closely as possible to the published PDF
1732 
specification and works with Acrobat Reader (3 or 4 respectively) for both
1733 
displaying and printing.
1734 
 
1735 
<p>
1736 
NOTE: The default level of output from the pdfwrite device (ps2pdf) has been
1737 
changed back to PDF 1.2 (Acrobat 3 compatible), because this is what the
1738 
majority of users want.  For PDF 1.3 output, use -dCompatibilityLevel=1.3.
1739 
 
1740 
<p>
1741 
Note: some post-6.0 code is included under an #ifdef POST60.
1742 
 
1743 
<h3><a name="5.95_Incompatible_changes"></a>Incompatible changes</h3><pre>
1744 
 
1745 
(Drivers)
1746 
	- The default CompatibilityLevel in the pdfwrite device (ps2pdf) is
1747 
now 1.2 rather than 1.3.
1748 
	- pdfwrite now discards information after the last showpage rather
1749 
than producing an additional page.
1750 
(Library)
1751 
	- The is_monotonic procedure of a function now returns a result that
1752 
indicates the direction of monotonicity of each value separately.
1753 
	- The coordinate system used internally by the bbox device is now
1754 
upright (lower left corner = (0,0) rather than upper left corner).  (This
1755 
should not make any difference to clients, who should always have been using
1756 
default user space coordinate.)
1757 
 
1758 
</pre><h3><a name="5.95_Documentation"></a>Documentation</h3><pre>
1759 
 
1760 
Fixes problems:
1761 
	- A couple of URLs were incorrect or out of date.  (doc/Readme.htm,
1762 
doc/Use.htm)
1763 
	- There was a typo in a comment.  (gxfont.h)
1764 
	- An old bug had been fixed, but the documentation had not been
1765 
updated to reflect this.  (doc/Current.htm)
1766 
 
1767 
Documents the requirement to change SYNC from posync to fbsdsync on FreeBSD.
1768 
(doc/Make.htm)
1769 
 
1770 
Adds references to Adobe's on-line documentation.  (doc/Readme.htm)
1771 
 
1772 
Updates the release procedure to mention adding .ps files.
1773 
(doc/Release.htm)
1774 
 
1775 
Adds documentation for the bbox device.  (doc/Use.htm)
1776 
 
1777 
Documents the new gsnup.ps utility.  (doc/Psfiles.htm)
1778 
 
1779 
Modifies the gslp utility for greater page independence and smaller output
1780 
files.  (lib/gslp.ps)
1781 
 
1782 
Documents the fact that the default output from pdfwrite is PDF 1.2.
1783 
(doc/Ps2pdf.htm)
1784 
 
1785 
Adds Inprise (as the new name of the Borland tools) in a few places.
1786 
(doc/Make.htm)
1787 
 
1788 
Updates the release documentation slightly.  (doc/Release.htm)
1789 
 
1790 
</pre><h3><a name="5.95_Procedures"></a>Procedures</h3><pre>
1791 
 
1792 
Fixes problems:
1793 
	- FreeBSD uses a different name for the pthreads implementation.
1794 
(lib.mak, unixansi.mak, unix-gcc.mak, unixtrad.mak)
1795 
 
1796 
Encapsulates gsnogc.$(OBJ) in a gsnogc.dev module, to make it more sharable.
1797 
(lib.mak)
1798 
 
1799 
</pre><h3><a name="5.95_Utilities"></a>Utilities</h3><pre>
1800 
 
1801 
Fixes problems:
1802 
	- guilsinglleft and guilsinglright were misspelled.
1803 
(lib/ps2ascii.ps)
1804 
	- The ps2pdf script didn't handle the -I switch correctly.  We fixed
1805 
this by including the options twice, both before and after the automatically
1806 
supplied options.  (lib/ps2pdf, lib/ps2pdf.bat)
1807 
 
1808 
Adds an install/uninstall program for Windows 9x, including optional
1809 
generation of a self-extracting executable, written by Ghostgum Software Pty
1810 
Ltd.  This program is not actually used yet.  (msvc32.mak, winint.mak,
1811 
dwinst.*, dwsetup.*, dwuninst.*)
1812 
 
1813 
Adds a new environment parameter to arch.h, ARCH_DIV_NEG_POS_TRUNCATES.
1814 
(genarch.c)
1815 
 
1816 
Adds a utility for N-up printing.  (unixinst.mak, lib/gsnup.ps)
1817 
 
1818 
Changes ps2pdf so that if showpage has ever been executed, any partial page
1819 
after the last showpage is discarded rather than made into an additional
1820 
page.  This is consistent with printers, and correctly handles BeginPage
1821 
procedures that draw backgrounds.  (gdevpdf.c)
1822 
 
1823 
</pre><h3><a name="5.95_Drivers"></a>Drivers</h3><pre>
1824 
 
1825 
Fixes problems:
1826 
	- The TIFF drivers could produce incorrectly sorted tag tables.
1827 
(gdevtifs.c)
1828 
	- The OS/2 PM driver had an incorrect #include.  (gdevpm.c)
1829 
	- Embedded Type 1 fonts that used seac didn't automatically include
1830 
the constituent glyphs.  (gdevpsd1.c)
1831 
	- Embedded Type 1 fonts wrote the wrong font name in the first
1832 
(comment) line.  (gdevpsd1.c)
1833 
	- Deleting elements from the AlwaysEmbed or NeverEmbed list could
1834 
cause a memory access error.  (gdevpsdp.c)
1835 
	- The string and string array members of psdf_distiller_params were
1836 
omitted from the GC descriptor, causing memory corruption.  (gdevpsdf.h,
1837 
gdevpsdf.c, gdevpsdp.c)
1838 
	- When using "async" printing, the buffer device was destroyed too
1839 
soon.  (fix from Artifex) (gdevbmpa.c)
1840 
 
1841 
Adds (partial) parsing for the new Acrobat Distiller 4.0 parameters, under
1842 
#ifdef POST60.  The put_params code isn't finished.  (gdevpsdf.h,
1843 
gdevpsdp.c)
1844 
 
1845 
</pre><h3><a name="5.95_Platforms"></a>Platforms</h3><pre>
1846 
 
1847 
Changes product to productfamily as the Windows registry key.  (gp_wgetv.c)
1848 
 
1849 
</pre><h3><a name="5.95_Fonts"></a>Fonts</h3><pre>
1850 
 
1851 
Fixes problems:
1852 
	- guilsinglleft and guilsinglright were misspelled in
1853 
MacRomanEncoding and MacGlyphEncoding.  (lib/gs_mro_e.ps)
1854 
	- plusminus was misspelled in MacGlyphEncoding.  (lib/gs_mgl_e.ps)
1855 
	- braceleftbt was misspelled as bracelefttbt in the Symbol font.
1856 
(fonts/s050000l.pfb)  ****** NOT DISTRIBUTED YET ******
1857 
	- euro was incorrectly included at position 240 in the Symbol
1858 
encoding.  (lib/gs_sym_e.ps)
1859 
	- Zcaron and zcaron weren't included in WinAnsiEncoding (this is new
1860 
for PDF 1.3).  (lib/gs_wan_e.ps)
1861 
	- Euro replaced currency in MacRomanEncoding.  We had to change this
1862 
back, even though the Mac does use code 219 for Euro, for compatibility with
1863 
Adobe documentation.  (lib/gs_mro_e.ps)
1864 
	- TrueType fonts with more glyphencoding entries than glyphs could
1865 
cause errors.  (lib/gs_ttf.ps)
1866 
 
1867 
Adds the Adobe Central European encoding.  (lib/gs_ce_e.ps, unixinst.mak)
1868 
 
1869 
Adds more tracing to the TrueType font loader.  (lib/gs_ttf.ps)
1870 
 
1871 
Adds the remaining PDF Encodings to the predefined set.  (lib/gs_lgo_e.ps,
1872 
lib/gs_lgx_e.ps, lib/gs_mex_e.ps, lib/gs_mgl_e.ps, lib/gs_mro_e.ps)
1873 
 
1874 
</pre><h3><a name="5.95_PDF_writer"></a>PDF writer</h3><pre>
1875 
 
1876 
Fixes problems:
1877 
	- When printing an error message, a pointer/length string was
1878 
incorrectly treated as a C string.  (gdevpdfm.c)
1879 
	- The treatment of text was completely broken by "improvements" made
1880 
in 5.94.  We think we've put things back to a state that at least isn't any
1881 
worse than 5.93.  (gdevpdfx.h, gdevpdff.c, gdevpdft.c)
1882 
	- The test for whether a glyph was present in a glyph set was wrong,
1883 
possibly causing an infinite loop.  (This never happened, because the code
1884 
was masked by other bugs.)  (gdevpdft.c)
1885 
	- Testing the PDF compatibility level didn't work correctly, because
1886 
of float/double mismatches.  (gdevpdfx.h, gdevpdfp.c)
1887 
	- Embedded TrueType fonts were still written in binary even if
1888 
ASCII85EncodePages was true.  (gdevpdff.c)
1889 
	- Embedded TrueType subsets didn't use Flags to indicate that they
1890 
had a non-standard cmap.  (gdevpdff.c)
1891 
	- Contrary to the obvious reading of the PDF specification, it
1892 
appears that the default encoding for embedded fonts, if no BaseEncoding is
1893 
specified, is StandardEncoding, *not* the built-in encoding of the font
1894 
itself; and that any differences from StandardEncoding must be listed
1895 
explicitly.  (gdevpdft.c)
1896 
 
1897 
Adds parsing for the new Acrobat Distiller 4.0 parameters, under #ifdef
1898 
POST60.  (lib/gs_pdfwr.ps, gdevpdfx.h, gdevpdfp.c)
1899 
 
1900 
Ensures that the Mac encodings are loaded when writing PDF.  (devs.mak)
1901 
 
1902 
Works around an Acrobat 3 bug: The only cmap table that works in TrueType
1903 
fonts is format 0, which can only reference glyphs up to 255.  Consequently,
1904 
a TrueType font whose Encoding references glyphs above 255 cannot be
1905 
embedded (as a font).  (gdevpdft.c)
1906 
 
1907 
Changes the default CompatibilityLevel from 1.3 to 1.2.  The majority of
1908 
users are running Acrobat 3.  (gdevpdf.c)
1909 
 
1910 
</pre><h3><a name="5.95_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
1911 
 
1912 
Fixes problems:
1913 
	- The T* operator was changed incorrectly to use the negative of the
1914 
leading value.  (lib/pdf_ops.ps)
1915 
	- The Tz value scaled the X offset for Td and TD (which it
1916 
shouldn't), occasionally causing strings to be displaced horizontally.
1917 
(lib/pdf_ops.ps)
1918 
	- sc[n]/SC[N] didn't work with 1-value color spaces, because the
1919 
code incorrectly assumed the operand stack contained only the values on the
1920 
PDF operand stack.  (bug introduced by Annotation rendering in 5.94)
1921 
(lib/pdf_base.ps, lib/pdf_draw.ps, lib/pdf_main.ps, lib/pdf_ops.ps)
1922 
	- The HTP key in the graphics state caused an error if the
1923 
interpreter didn't implement sethalftonephase.  (lib/pdf_draw.ps)
1924 
	- If there was no Names tree, invalid links (string Dest values)
1925 
caused an error instead of being ignored.  (lib/pdf_main.ps)
1926 
	- An annotation with a Thread action caused an error.
1927 
(lib/pdf_main.ps)
1928 
 
1929 
Adds table entries, but not implementation, for the op and OPM keys in
1930 
ExtGState dictionaries.  (lib/pdf_draw.ps)
1931 
 
1932 
Works around a bug in Adobe Acrobat Distiller 4.0 for Windows: it uses the
1933 
value /Default with the BG, UCR, and TR keys in an ExtGState.
1934 
(lib/pdf_draw.ps, lib/pdf_main.ps)
1935 
 
1936 
Adds additional tracing for Functions.  (lib/pdf_draw.ps)
1937 
 
1938 
Implements the BG2, UCR2, and TR2 keys in ExtGStates.  (lib/pdf_draw.ps)
1939 
 
1940 
</pre><h3><a name="5.95_Interpreter"></a>Interpreter</h3><pre>
1941 
 
1942 
Fixes problems:
1943 
	- There was a (harmless) signed/unsigned mismatch.  (imainarg.c)
1944 
	- If build_gs_simple_font had to add any elements to the font
1945 
dictionary, a temporary pointer to the CharStrings could become invalid,
1946 
causing crashes or confusion.  (zbfont.c)
1947 
	- The check for known Encodings included some pseudo-Encodings.
1948 
(zbfont.c)
1949 
	- The error object wasn't reset to null before each call of the
1950 
interpreter, possibly causing the garbage collector to mark it even if it no
1951 
longer existed.  (interp.c)
1952 
 
1953 
Adds productfamily as a new predefined name, for the benefit of the Windows
1954 
registry.  (iinit.c)
1955 
 
1956 
Changes the default color smoothness to 0.02 to match Adobe RIPs.
1957 
(lib/gs_ll3.ps)
1958 
 
1959 
Adds using the glyph_info procedure for Type 1 fonts, needed to fix the
1960 
problem with seac and Type 1 embedded fonts.  (zfont1.c)
1961 
 
1962 
</pre><h3><a name="5.95_Library"></a>Library</h3><pre>
1963 
 
1964 
Fixes problems:
1965 
	- Memory devices that may execute RasterOp must be initialized with
1966 
an allocator (for temporary bitmaps), but sometimes they weren't.
1967 
(gdevdrop.c)
1968 
	- The computation of colors_used for images could cause arithmetic
1969 
exceptions and/or produce incorrect results.  (fix from Artifex)
1970 
(gxclimag.c)
1971 
	- A dead variable was getting incremented in a loop.  (Small
1972 
performance bug only.)  (gsfunc0.c)
1973 
	- The cached is_monotonic value in a function head was incorrectly
1974 
declared bool rather than int.  (gsfunc.h)
1975 
	- The clip operators didn't always recognize empty clipping regions:
1976 
sometimes they retained a 1-pixel-wide region.  (gxcpath.c)
1977 
	- The bbox device could get into a recursion loop if it had a
1978 
non-null target with a non-standard fill_path procedure.  (gdevbbox.c)
1979 
	- The procedure u32 was defined in two places.  (gsutil.h,
1980 
gdevpsdt.c, gsutil.c, gstype42.c)
1981 
	- The DataSource member of a sampled function wasn't reported to the
1982 
garbage collector.  (gsfunc0.h, gsfunc0.c)  ****** MUST DO THE SAME FOR
1983 
SHADINGS ******
1984 
	- All name-type parameters (device and other) were converted as
1985 
strings rather than names.  (gsparam.c)
1986 
	- Using a mask Pattern with an anti-aliased device could make
1987 
invalid memory accesses and cause a crash.  (gxpcmap.c)
1988 
	- math_.h was included unnecessarily.  (gxfill.c, gxhint3.c)
1989 
	- In a few places, (fixed-point) coordinates were truncated towards
1990 
zero rather than taking the floor.  (It's likely that this had no effect.)
1991 
(gxfill.c, gxpcopy.c)
1992 
	- The join and cap values weren't taken into account when dividing a
1993 
stroked path into bands, possibly causing some caps or joins to be dropped
1994 
if they fell exactly at band boundaries.  (gxclpath.c)
1995 
	- An arithmetic overflow in gx_adjust_if_empty could produce
1996 
incorrect output.  (gxfill.c)
1997 
	- Because the bbox device used a Y-inverted coordinate system, it
1998 
could produce incorrect results for out-of-bounds coordinates.  (gdevbbox.c)
1999 
	- The default font_info procedure didn't compute MISSING_WIDTH if
2000 
IS_FIXED_WIDTH wasn't requested.  (gsfont.c)
2001 
	- space_params wasn't managed properly, causing problems if the
2002 
device altered the default values.  (fix from Artifex) (gdevprn.c)
2003 
	- The Macintosh cmap table for embedded TrueType fonts was written
2004 
incorrectly.  (gdevpsdt.c)
2005 
	- The OS/2 table for embedded TrueType fonts could be inconsistent
2006 
with the cmap table.  (gdevpsdt.c)
2007 
	- In embedded subset TrueType fonts, loca entries beyond the last
2008 
occupied glyph contained garbage.  (gdevpsdt.c)
2009 
	- Embedded TrueType subsets didn't include the components of
2010 
composite glyphs.  (gdevpsdf.h, gdevpsd1.c, gdevpsdf.c, gdevpsdt.c)
2011 
 
2012 
Changes the is_monotonic procedure of Functions so that it reports the
2013 
direction of monotonicity of each value independently.  This allows a larger
2014 
class of functions to be detected as monotonic.  (gsfunc.h, gsfunc0.c,
2015 
gsfunc3.c)
2016 
 
2017 
Works around a bug in Fontographer that causes it to produce (or at least
2018 
allow users to produce) Type 1 fonts using seac in which the side bearing of
2019 
the accented character differs from the side bearing of the base glyph.  The
2020 
published Type 1 specification and Adobe's engineers agree that such fonts
2021 
are invalid, but the authors of Fontographer don't seem to care (this is the
2022 
4th Fontographer bug that we have had to patch around so far).  (gxtype1.h,
2023 
gstype1.c, gxtype1.c)
2024 
 
2025 
Adds gs_productfamily, for the benefit of the Windows registry.  (gscdefs.h,
2026 
gscdef.c)
2027 
 
2028 
Adds a glyph_info procedure for Type 1 fonts, needed to fix the problem with
2029 
seac and Type 1 embedded fonts.  (gxfont1.h, gxtype1.c)
2030 
 
2031 
Adds a gs_resize_struct_array procedure that either allocates or resizes an
2032 
object.  We have wanted this for quite a while.  (gsmemory.h, gsmemory.c)
2033 
 
2034 
Adds the remaining PDF Encodings to the predefined set.  Also adds string
2035 
names for the "real" encodings.  (gsccode.h)
2036 
 
2037 
Adjusts the format of embedded TrueType fonts to be closer to that produced
2038 
by Acrobat Distiller, in the hope of making Acrobat Reader accept them.
2039 
(gdevpsdf.h, gdevpsdt.c)
2040 
 
2041 
</pre>
2042 
 
2043 
<hr>
2044 
 
2045 
<h2><a name="Version5.94"></a>Version 5.94 (beta) (9/30/99)</h2>
2046 
 
2047 
<p>
2048 
This is (intended to be) the last beta candidate for the 6.0 release.  Most
2049 
changes other than added documentation are bug fixes.  In order to address a
2050 
last-minute problem report, we implemented a subset of Annotation rendering
2051 
for PDF files.
2052 
 
2053 
<p>
2054 
At the request of the Free Software Foundation, we removed support for GNU
2055 
readline from the Aladdin Ghostscript fileset.  See <a
2056 
href="Make.htm#GNU_readline">here</a> for more information.
2057 
 
2058 
<p>
2059 
We suspect that Acrobat's bugs and limitations still prevent embedded
2060 
TrueType fonts in files created by the pdfwrite device from working
2061 
properly, but we have neither the time nor the means to test this properly.
2062 
 
2063 
<h3><a name="5.94_Incompatible_changes"></a>Incompatible changes</h3><pre>
2064 
 
2065 
(Procedures)
2066 
	- For OpenVMS with MMK or MMS, the third-party libraries are now
2067 
located in [.&lt;lib&gt;] rather than [-.&lt;lib&gt;].
2068 
	- The OpenVMS makefiles now select the same set of devices as the
2069 
Unix makefiles.
2070 
	- The MS Windows and MS-DOS default installation directory is now
2071 
c:\Aladdin\gs#.# rather than c:\gs.
2072 
	- All top-level makefiles now need a definition of BUILD_TIME_GS.
2073 
(Drivers)
2074 
	- The cljet5 driver is renamed cljet5pr; there is a new cljet5
2075 
driver that doesn't attempt (and fail) to handle page rotation.
2076 
(Interpreter)
2077 
	- .getiodevice may return null.
2078 
(Library)
2079 
	- IODevices may now have a null name.
2080 
 
2081 
</pre><h3><a name="5.94_Documentation"></a>Documentation</h3><pre>
2082 
 
2083 
Fixes problems:
2084 
	- The documentation of font searching was still wrong in both
2085 
places.  (doc/Fonts.htm, doc/Use.htm)
2086 
 
2087 
Notes that certain CodeWarrior code generation options produce incorrect
2088 
code.  (doc/Make.htm)
2089 
 
2090 
Removes an inaccurate and obsolete comment.  (lib/pdf_font.ps)
2091 
 
2092 
Notes that newer versions of the SGI compiler use a different switch for
2093 
setting the optimization limit.  (doc/Make.htm)
2094 
 
2095 
Notes that there may be code generation bugs in MSVC5 and later.
2096 
(doc/Make.htm)
2097 
 
2098 
Documents the new Fontmap.SGI file.  (doc/Use.htm)
2099 
 
2100 
Updates the documentation on installing Ghostscript on MS Windows.
2101 
(doc/Install.htm)
2102 
 
2103 
Documents the removal of the GNU readline interface.  (doc/Current.htm,
2104 
doc/Make.htm)
2105 
 
2106 
</pre><h3><a name="5.94_Procedures"></a>Procedures</h3><pre>
2107 
 
2108 
Fixes problems:
2109 
	- The instcopy script, supposed to handle incompatibilities between
2110 
Unix `install' commands, didn't work.  (instcopy, unixinst.mak)
2111 
	- The Windows makefiles had an extra occurrence of `.' at the
2112 
beginning of the default search path.  (bcwin32.mak, msvc32.mak,
2113 
msvclib.mak, watc*.mak)
2114 
	- The OpenVMS makefile didn't automatically create the bin and obj
2115 
directories if needed.  (openvms.mak)
2116 
 
2117 
Changes the OpenVMS MMK/MMS makefile to expect the third-party libraries in
2118 
a subdirectory of the current directory, rather than a subdirectory of the
2119 
parent.  This makes it compatible with all the other makefiles.
2120 
(openvms.mmk)
2121 
 
2122 
Changes the OpenVMS makefiles to select the same set of devices as the Unix
2123 
makefiles.  (openvms.mak, openvms.mmk, unixansi.mak)
2124 
 
2125 
Changes the Windows and OS/2 default search paths to match the new
2126 
convention of installation rooted at c:\Aladdin.  (bcwin32.mak, msvc32.mak,
2127 
msvclib.mak, os2.mak, watc.mak, watclib.mak, watcw32.mak)
2128 
 
2129 
</pre><h3><a name="5.94_Utilities"></a>Utilities</h3><pre>
2130 
 
2131 
Fixes problems:
2132 
	- The Type 1/2 CharString printer didn't handle undefined opcodes
2133 
correctly.  (lib/type1ops.ps)
2134 
	- There was no Unix script for pf2afm.  (lib/pf2afm)
2135 
	- The Type 1/2 font printing utilities didn't default lenIV to -1
2136 
for Type 2, and didn't handle lenIV = -1 correctly in some places.
2137 
(lib/type1ops.ps)
2138 
	- The font2c utility used the version of font2c.ps from whatever
2139 
existing Ghostscript executable was in the search path.  Fixing this
2140 
required adding a new parameter in all top-level makefiles, BUILD_TIME_GS.
2141 
(cfonts.mak, bcwin32.mak, dvx-gcc.mak, msvc32.mak, openvms.mak, openvms.mmk,
2142 
os2.mak, unix-gcc.mak, unixansi.mak, unixtrad.mak, watc.mak, watcw32.mak)
2143 
	- The pfbtopfa usage message was incorrect.  (lib/pfbtopfa.ps)
2144 
 
2145 
</pre><h3><a name="5.94_Drivers"></a>Drivers</h3><pre>
2146 
 
2147 
Fixes problems:
2148 
	- The pswrite driver didn't reset the clipping path when writing
2149 
low-level images, possibly causing output to be clipped incorrectly.
2150 
(gdevps.c)
2151 
	- The PNG drivers implicitly declared png_init_io.  Fixing this is
2152 
only possible in libpng versions 1.0.3 and later.  (gdevpng.c)
2153 
	- The cljet5 driver (now cljet5pr) set rotated = true if the page
2154 
was rotated, but didn't set it to false if the page wasn't rotated.
2155 
(gdevclj.c)
2156 
	- Embedded Type 1 fonts didn't include any FontInfo elements.
2157 
(gdevpsd1.c)
2158 
	- Specifying the DCTEncode filter for compressing images caused a
2159 
crash.  This problem is hard to fix correctly because of the complicated
2160 
initialization requirements of the JPEG encoder.  We patched around it by
2161 
substituting FlateEncode (when available) for DCTEncode.  (gdevpsdi.c)
2162 
 
2163 
Renames the cljet5 driver, which has special (and incorrect) hacks to handle
2164 
page rotation for the PCL interpreter, as cljet5pr; adds a new cljet5 driver
2165 
without the hacks.  (gdevclj.c)
2166 
 
2167 
</pre><h3><a name="5.94_Platforms"></a>Platforms</h3><pre>
2168 
 
2169 
Fixes problems:
2170 
	- On MS Windows and OS/2 systems, the wstdio pseudo-IODevice showed
2171 
up as an instance of the IODevice resource category, causing problems.
2172 
(gp_msio.c, gp_os2.c)
2173 
 
2174 
Adds a set of XBM/XPM icons in 4 sizes, contributed by Gintautas Grigelionis
2175 
(eragigr@ki.ericsson.se).  (lib/gs*.xbm, lib/gs*.xpm, unixinst.mak)
2176 
 
2177 
Brings the Windows and OS/2 code up to date, fixing some minor problems.
2178 
(gdevpm.c, gp_os2.c, gsos2.rc, gspmdrv.rc, os2.mak, pcwin.mak)
2179 
 
2180 
</pre><h3><a name="5.94_Fonts"></a>Fonts</h3><pre>
2181 
 
2182 
Fixes problems:
2183 
	- The font directory scanner (FONTPATH) didn't recognize TrueType
2184 
fonts tagged as 'true' rather than 0x00010000.  (lib/gs_ttf.ps)
2185 
 
2186 
Changes the TrueType font loader to use ISOLatin1Encoding for constructing
2187 
the CharStrings if there is a Microsoft Unicode cmap and no glyph names in
2188 
the post table.  This seems like a hack, but we aren't sure what the right
2189 
approach would be.  (lib/gs_ttf.ps)
2190 
 
2191 
Adds a Fontmap for SGI IRIX.  This just comments out those fonts that are
2192 
provided by DPS.  (lib/Fontmap.SGI)
2193 
 
2194 
</pre><h3><a name="5.94_PDF_writer"></a>PDF writer</h3><pre>
2195 
 
2196 
Fixes problems:
2197 
	- Writing Patterns could cause a memory access error.  (bug
2198 
introduced recently) (gdevpdfi.c)
2199 
	- Filling with a pattern didn't reset the clipping path, possibly
2200 
causing output to be clipped incorrectly.  (gdevpdfi.c)
2201 
	- Patterns weren't scaled correctly.  (gdevpdfi.c)
2202 
	- The data for large Patterns could exceed Acrobat Reader's limit on
2203 
the length of a string.  (gdevpdfi.c)
2204 
	- copy_color did an extra gsave and concat.  (gdevpdfi.c)
2205 
	- Repeated color images weren't detected (performance bug only).
2206 
(gdevpdfi.c)
2207 
	- Names including control characters or spaces produced invalid
2208 
output.  (gdevpdfx.h, gdevpdfu.c)
2209 
	- A matrix multiply was in the wrong order, causing fonts with
2210 
non-zero translation in the FontMatrix to render at incorrect coordinates
2211 
(sometimes off the page).
2212 
	- If a font had one of the 14 standard names but had some characters
2213 
defined by PostScript procedures, the output file would be invalid.
2214 
(gdevpdft.c)
2215 
	- The graphics state line parameters were kept in two different
2216 
copies, causing bookkeeping errors.  (gdevpdfx.h, gdevpdf.c, gdevpdfd.c,
2217 
gdevpdfu.c)
2218 
	- If a page's BeginPage procedure did anything other than erase the
2219 
page to white, the resulting PDF file was invalid.  (gdevpdf.c)
2220 
	- Articles with the same title weren't merged properly.
2221 
(gdevpdfm.c)
2222 
	- The Threads element of the catalog wasn't an indirect object.
2223 
(gdevpdf.c)
2224 
	- Thread actions incorrectly converted the destination (thread
2225 
title) to a name, rather than leaving it as a string.  (gdevpdfm.c)
2226 
	- Fonts with the same name as the built-in ones, but not the
2227 
standard definitions, produced possibly incorrect output.  (gdevpdff.c)
2228 
	- The writer didn't recognize attempts to use Encodings with the
2229 
standard fonts that mentioned characters not present in the font's glyph
2230 
set.  (gdevpdft.c)
2231 
 
2232 
Ensures that the WinAnsiEncoding is loaded when writing PDF.  (devs.mak)
2233 
 
2234 
</pre><h3><a name="5.94_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
2235 
 
2236 
Fixes problems:
2237 
	- The default (identity) CMap didn't map CID 0 to glyph 0.
2238 
(pdf_fonts.ps)
2239 
	- TrueType fonts with an explicit Encoding didn't work properly.
2240 
(lib/gs_ttf.ps)
2241 
	- If an embedded Type 1 font executed definefont more than once,
2242 
the wrong thing would happen.  (lib/pdf_font.ps)
2243 
	- The T* operator used the negative of the leading value.
2244 
(lib/pdf_ops.ps)
2245 
 
2246 
Implements a subset of Annotation rendering: only Widget annotations, only
2247 
Normal appearance, only S and D borders, no rounded-corner borders.  We did
2248 
this at the very last minute before the release, in order to respond to a
2249 
bug report, and it probably has some bugs.  (lib/pdf_draw.ps,
2250 
lib/pdf_main.ps)
2251 
 
2252 
</pre><h3><a name="5.94_Interpreter"></a>Interpreter</h3><pre>
2253 
 
2254 
Fixes problems:
2255 
	- If an input buffer boundary fell at exactly the wrong place, an
2256 
image whose input was coming from a stream could fail to read the stream EOD
2257 
marker.  (This is quite an old bug.)  (zimage.c)
2258 
	- On MS Windows and OS/2 systems, the wstdio pseudo-IODevice showed
2259 
up as an instance of the IODevice resource category, causing problems.
2260 
(lib/gs_res.ps, ziodev.c)
2261 
	- errorinfo in $error was undefined, rather than null, initially and
2262 
after errors that didn't set it deliberately.  (lib/gs_init.ps)
2263 
	- The InkParams resource category was defined even in systems that
2264 
didn't support in-RIP trapping.  (lib/gs_ll3.ps, lib/gs_res.ps,
2265 
lib/gs_trap.ps)
2266 
	- CID fonts with 0-length data caused an error.  (lib/gs_cidfn.ps)
2267 
	- Type 10 halftone dictionaries were broken -- perhaps they never
2268 
had worked.  (lib/gs_ll3.ps)
2269 
 
2270 
Makes FontInfo entries available through the extended font API, needed to
2271 
allow embedded Type 1 fonts to include those entries.  (zfont1.c)
2272 
 
2273 
Makes it possible to determine whether the current file is a resource file,
2274 
needed to allow distinguishing between built-in and input-embedded fonts.
2275 
(lib/gs_ccfnt.ps, lib/gs_fonts.ps, lib/gs_init.ps, lib/gs_res.ps,
2276 
lib/gs_type1.ps, zfont.c)
2277 
 
2278 
Moves support for GNU readline from the main Ghostscript fileset to the
2279 
GNU-specific fileset.  (unix-gcc.mak, int.mak, gp_gnrdl.c =>
2280 
src/gnu/gp_gnrdl.c, gnu/src/gnudevs.mak)
2281 
 
2282 
</pre><h3><a name="5.94_Streams"></a>Streams</h3><pre>
2283 
 
2284 
Fixes problems:
2285 
	- The CCITTFaxDecode filter didn't correctly handle the case where
2286 
the last code of a 1-D row was a black code and occurred less than 7 or 8
2287 
bits before the end of the input stream.  (We thought we fixed this in 5.86,
2288 
but we missed one case.)  (scfd.c)
2289 
	- If an input buffer boundary fell at exactly the wrong place, an
2290 
image whose input was coming from a stream could fail to read the stream EOD
2291 
marker.  (This is quite an old bug.)  Fixing this involved a possibly risky
2292 
change to the definition of sbuf_min_left and the already fragile logic in
2293 
sreadbuf: the fix does solve this problem, but we aren't at all certain it
2294 
didn't introduce new ones.  (stream.h, stream.c)
2295 
 
2296 
</pre><h3><a name="5.94_Library"></a>Library</h3><pre>
2297 
 
2298 
Fixes problems:
2299 
	- The default implementation of copy_tile didn't pass the bitmap id
2300 
for complete tiles, missing potential optimizations (performance bug only).
2301 
(gdevdbit.c)
2302 
	- The patch edges of ShadingType 7 shadings were ordered
2303 
incorrectly, producing incorrect output in some cases where the surface
2304 
folds over itself.  (gxshade6.c)
2305 
	- Flushing internal buffers when rendering an image didn't clip the
2306 
flushed data, producing incorrect output.  (gxidata.c)
2307 
	- Non-zero data_x values for banded images produced incorrect band
2308 
list data.  (It's astounding that this problem hasn't shown up before.)
2309 
(gxclimag.c)
2310 
	- Banded images rotated by 90 degrees could produce "seams" or
2311 
garbage if they crossed band boundaries.  (This is at least the third time
2312 
we have "fixed" this problem.)  (gxclimag.c, gxifast.c)
2313 
	- Circles or ellipses defined by pairs of 180-degree arcs produced
2314 
incorrect output when banding.  (gxclpath.c, gxclrast.c)
2315 
	- setgray et al simply cleared the Pattern pointer in the client
2316 
color rather than adjusting its reference count.  (gscolor.c, gscolor1.c)
2317 
	- The saved graphics state for bitmap/pixmap patterns contained a
2318 
reference to the Pattern color, causing Patterns to be retained when they
2319 
shouldn't be and causing unwanted recursion when freeing them.  (gsptype1.c)
2320 
	- Patterns containing halftoned CMYK colors rendered as all black.
2321 
(bug probably introduced in 5.6x) (gxcht.c)
2322 
	- Because of a typo, CMYK halftoning with only a single plane could
2323 
put too much yellow into the output.  This appears to be quite an old bug.
2324 
(gxdither.c)
2325 
	- The error code from running out of band list memory wasn't
2326 
propagated if the condition was detected in cmd_put_drawing_color, causing
2327 
low-memory recovery not to be invoked.  (gxclpath.c)
2328 
	- (Same error code problem) in clist_change_tile.  (gxclbits.c)
2329 
 
2330 
Adds more font attributes to the set available through a standard API.
2331 
(gxfont.h)
2332 
 
2333 
Adds more statistics to the filling algorithm.  (gxfill.c)
2334 
 
2335 
Adds an is_resource flag to fonts, to indicate that they originated from a
2336 
resource rather than being embedded in an input file.  (gxfont.h, gsfont.c)
2337 
 
2338 
</pre>
2339 
 
2340 
<hr>
2341 
 
2342 
<h2><a name="Version5.93"></a>Version 5.93 (beta) (9/11/99)</h2>
2343 
 
2344 
<p>
2345 
This is the next candidate for the 6.0 release.  As with 5.92, all changes
2346 
other than added documentation are bug fixes.
2347 
 
2348 
<h3><a name="5.93_Incompatible_changes"></a>Incompatible changes</h3><pre>
2349 
 
2350 
(Library)
2351 
	- Every stream whose state includes any GC-traceable pointers must
2352 
now have a set_defaults procedure that clears those pointers.
2353 
 
2354 
</pre><h3><a name="5.93_Documentation"></a>Documentation</h3><pre>
2355 
 
2356 
Fixes problems:
2357 
	- There was an extra /ul tag.  (doc/Release.htm)
2358 
	- Fontmap.GS wasn't mentioned as needing to be installed.
2359 
(doc/Install.htm)
2360 
	- Some documentation for the handling of seac was incorrect.
2361 
(gxtype1.c)
2362 
 
2363 
Removes references to installbsd, which are no longer relevant.
2364 
(doc/Install.htm)
2365 
 
2366 
Updates the information on building with NeXTSTEP.  (doc/Make.htm)
2367 
 
2368 
</pre><h3><a name="5.93_Procedures"></a>Procedures</h3><pre>
2369 
 
2370 
Fixes problems:
2371 
	- The install command had unpredictably different syntax from one
2372 
"standard" Unix system to another, causing `make install' to fail.  We
2373 
replaced the install command with our own script.  (instcopy, dvx-gcc.mak,
2374 
unix-gcc.mak, unixansi.mak, unixtrad.mak)
2375 
 
2376 
</pre><h3><a name="5.93_Utilities"></a>Utilities</h3><pre>
2377 
 
2378 
Fixes problems:
2379 
	- pcharstr.ps loaded type1ops.ps with run rather than runlibfile,
2380 
causing an error.  (lib/pcharstr.ps)
2381 
 
2382 
</pre><h3><a name="5.93_Drivers"></a>Drivers</h3><pre>
2383 
 
2384 
Fixes problems:
2385 
	- Attempting to embed a font whose Encoding included characters not
2386 
present in the font produced invalid output.  (gdevpsd1.c)
2387 
	- Allocating a stream state didn't (automatically) clear all its
2388 
internal pointers, possibly causing GC memory access errors.  (gdevpsds.c)
2389 
	- An #include of string_.h should have been memory_.h.  (gdevpsdf.c)
2390 
 
2391 
Disables compression for very small images.  (gdevpsdi.c)
2392 
 
2393 
</pre><h3><a name="5.93_Platforms"></a>Platforms</h3><pre>
2394 
 
2395 
Fixes problems:
2396 
	- Compiling gp_msio with MSVC's /MD switch caused a compile-time
2397 
error.  (gp_msio.c)
2398 
 
2399 
</pre><h3><a name="5.93_PDF_writer"></a>PDF writer</h3><pre>
2400 
 
2401 
Fixes problems:
2402 
	- A bookkeeping object was allocated with the wrong allocator,
2403 
possibly causing access errors or garbage output.  (gdevpdfu.c)
2404 
	- Certain Patterns weren't treated as such, leading to very large
2405 
output files.  (gdevpdfi.c)
2406 
	- If one of the base 14 fonts had a non-standard FontMatrix, the
2407 
output disregarded this fact.  This could cause double obliquing.
2408 
(gdevpdfx.h, gdevpdff.c, gdevpdft.c)
2409 
	- Articles never got an object ID assigned.  (bug introduced in
2410 
5.91) (gdevpdfm.c)
2411 
 
2412 
</pre><h3><a name="5.93_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
2413 
 
2414 
Changes the PDF interpreter to allow abbreviated filter names like /Fl for
2415 
all streams, not just in-line images.  This directly contradicts the
2416 
published PDF specification, but Acrobat Reader allows it.
2417 
(lib/pdf_base.ps)
2418 
 
2419 
</pre><h3><a name="5.93_Interpreter"></a>Interpreter</h3><pre>
2420 
 
2421 
Fixes problems:
2422 
	- Compiled fonts were broken by the introduction of i_ctx_p.
2423 
(lib/font2c.ps, ccfont.h, iccfont.c)
2424 
	- Allocating a stream state didn't (automatically) clear all its
2425 
internal pointers, possibly causing GC memory access errors.  (zfproc.c)
2426 
 
2427 
</pre><h3><a name="5.93_Streams"></a>Streams</h3><pre>
2428 
 
2429 
Fixes problems:
2430 
	- Allocating a stream state didn't (automatically) clear all its
2431 
internal pointers, possibly causing GC memory access errors.  (scfx.h,
2432 
slzwx.h, spngpx.h, strimpl.h, sbwbs.c, sdctc.c, seexec.c, sfilter1.c,
2433 
siscale.c, szlibc.c)
2434 
	- The PNG predictor streams could fail to process some data at the
2435 
end of the input.  (spngp.c)
2436 
 
2437 
</pre><h3><a name="5.93_Library"></a>Library</h3><pre>
2438 
 
2439 
Fixes problems:
2440 
	- Some obsolete definitions for Turbo C could produce references to
2441 
an undefined procedure (setmem) at link time.  (memory_.h, string_.h)
2442 
 
2443 
</pre>
2444 
 
2445 
<hr>
2446 
 
2447 
<h2><a name="Version5.92"></a>Version 5.92 (beta) (9/2/99)</h2>
2448 
 
2449 
<p>
2450 
This is the next candidate for the 6.0 release.  All changes other than
2451 
added documentation are bug fixes.
2452 
 
2453 
<h3><a name="5.92_Documentation"></a>Documentation</h3><pre>
2454 
 
2455 
Fixes problems:
2456 
	- The News for 5.91 didn't include a summary.  (doc/News.htm)
2457 
	- The documentation for Microsoft platforms didn't mention that you
2458 
must add the Ghostscript bin and lib directories to the PATH.  (doc/Use.htm)
2459 
 
2460 
Adds a file describing Aladdin's process for building, testing, and
2461 
releasing Ghostscript.  (doc/Readme.htm, doc/Release.htm)
2462 
 
2463 
</pre><h3><a name="5.92_Procedures"></a>Procedures</h3><pre>
2464 
 
2465 
Fixes problems:
2466 
	- Fontmap.GS is now required, but wasn't installed.  (unixinst.mak)
2467 
	- A couple of documentation files weren't installed.  (unixinst.mak)
2468 
 
2469 
</pre><h3><a name="5.92_Utilities"></a>Utilities</h3><pre>
2470 
 
2471 
Fixes problems:
2472 
	- The ps2pdf script for MS Windows used the wrong name for the
2473 
executable.  (lib/ps2pdf.bat)
2474 
 
2475 
</pre><h3><a name="5.92_Drivers"></a>Drivers</h3><pre>
2476 
 
2477 
Fixes problems:
2478 
	- An uninitialized variable annoyed some compilers.  (gdevpsdt.c)
2479 
	- The PostScript-writing driver used the wrong allocator, causing
2480 
possible memory access errors.  (gdevps.c)
2481 
	- The PostScript-writing driver didn't clear a pointer, causing
2482 
possible GC errors.  (gdevps.c)
2483 
	- The PostScript-writing driver didn't have a correct GC descriptor,
2484 
causing pointers to be corrupted.  (gdevpsdf.h, gdevps.c, gdevpsdf.c)
2485 
	- Embedded Type 1 fonts unnecessarily filled individual Encoding
2486 
slots with /.notdef.  (gdevpsd1.c)
2487 
	- A large constant produced warnings on some compilers.  (gdevpsdt.c)
2488 
 
2489 
</pre><h3><a name="5.92_PDF_writer"></a>PDF writer</h3><pre>
2490 
 
2491 
Fixes problems:
2492 
	- Once again, gcc didn't complain about an ANSI-illegal extra
2493 
semicolon in a declaration list.  (gdevpdfo.h)
2494 
	- Adds a cast to work around the fact that some compilers declare
2495 
the return type of memchr as char * rather than void *.  (gdevpdfr.c)
2496 
	- The bookkeeping for whether a font had been written and freed was
2497 
inverted, causing some fonts to be written many times and other fonts not to
2498 
be written at all.  (gdevpdf.c)
2499 
 
2500 
</pre><h3><a name="5.92_Interpreter"></a>Interpreter</h3><pre>
2501 
 
2502 
Fixes problems:
2503 
	- More places needed workarounds for the alignment aliasing gcc bug.
2504 
The bug only occurs if a pointer variable is dereferenced through a cast to
2505 
a stricter alignment and then dereferenced later in its original form, so it
2506 
doesn't affect very many places.  (igc.c, igcref.c, isave.c)
2507 
 
2508 
</pre><h3><a name="5.92_Streams"></a>Streams</h3><pre>
2509 
 
2510 
Makes the stream GC descriptor public for subclassing.  (stream.h, stream.c)
2511 
 
2512 
</pre>
2513 
 
2514 
<hr>
2515 
 
2516 
<h2><a name="Version5.91"></a>Version 5.91 (beta) (8/30/99)</h2>
2517 
 
2518 
<p>
2519 
This is the next beta for 6.0.  It includes a major rewrite of the parts of
2520 
the PDF writer that deal with resources and pdfmarks, as well as the usual
2521 
bug fixes.  There are still problems with embedded fonts, both TrueType
2522 
(which sometimes don't show up at all) and Type 1 (which sometimes confuse
2523 
Acrobat Reader 3).
2524 
 
2525 
<h3><a name="5.91_Documentation"></a>Documentation</h3><pre>
2526 
 
2527 
Fixes problems:
2528 
	- An HTML tag was misplaced in the News file.  (doc/News.htm)
2529 
 
2530 
Notes that the Solaris FONTPATH scanning problem may be fixed.
2531 
(doc/Use.htm)
2532 
 
2533 
</pre><h3><a name="5.91_Utilities"></a>Utilities</h3><pre>
2534 
 
2535 
Fixes problems:
2536 
	- Many of the margin and width computations in ps2epsi.ps (not
2537 
written by Aladdin) were wrong -- off by 1.  It's only because the bugs
2538 
masked each other or cancelled each other out that the code didn't produce
2539 
errors more of the time.  (lib/ps2epsi.ps)
2540 
 
2541 
</pre><h3><a name="5.91_Drivers"></a>Drivers</h3><pre>
2542 
 
2543 
Fixes problems:
2544 
	- Font subset glyphs weren't sorted early enough, causing Type 1
2545 
embedded fonts to be written with inconsistent lengths.  (gdevpsd1.c)
2546 
 
2547 
Changes the BMP drivers so that they set the resolution in the BMP header
2548 
rather than leaving it at 0.  This solves some problems reported by users,
2549 
but may cause others.  (gdevbmpc.c)
2550 
 
2551 
</pre><h3><a name="5.91_Platforms"></a>Platforms</h3><pre>
2552 
 
2553 
Fixes problems:
2554 
	- A change made in 5.90 was incorrect (we couldn't test it, because
2555 
MS Windows and OS/2 systems can't be used over a network).  (gp_msio.c,
2556 
gp_os2.c)
2557 
 
2558 
Adds some conditionalization to work around a bug in some recent versions of
2559 
gcc/egcs.  (stdpre.h, interp.c)
2560 
 
2561 
</pre><h3><a name="5.91_Fonts"></a>Fonts</h3><pre>
2562 
 
2563 
Fixes problems:
2564 
	- If the extension of a font file name on GS_FONTPATH included any
2565 
upper-case characters, the font would not be found.  (lib/gs_fonts.ps)
2566 
 
2567 
Allows fontmaps to contain &lt;string&gt; run or .runlibfile, to get rid of the
2568 
Fontmap -&gt; Fontmap.GS link that VMS can't handle.  (lib/gs_fonts.ps)
2569 
 
2570 
</pre><h3><a name="5.91_PDF_writer"></a>PDF writer</h3><pre>
2571 
 
2572 
Fixes problems:
2573 
	- Very long arguments for pdfmark caused an ioerror, because the
2574 
buffer used for converting them was fixed-length.  (lib/gs_pdfwr.ps)
2575 
	- pdfmarks couldn't refer to objects that hadn't been defined yet.
2576 
(gdevpdfx.h, gdevpdfo.c)
2577 
	- When a DOCVIEW pdfmark added an OpenAction key to the Catalog,
2578 
it omitted the / before the name.  (gdevpdfm.c)
2579 
	- Font resources could be written in the middle of a page contents
2580 
stream.  (bug introduced in 5.90) (gdevpdff.c, gdevpdfu.c)
2581 
	- As usual, there were some signed/unsigned char * mismatches that
2582 
gcc didn't detect.  (gdevpdff.c, gdevpdfm.c, gdevpdfo.c)
2583 
	- Fonts used on a page but freed before the end of the page were
2584 
omitted from the page's resource dictionary.  (gdevpdfx.h, gdevpdf.c,
2585 
gdevpdff.c, gdevpdft.c)
2586 
	- /D or /Dest keys in Action pdfmark dictionaries dropped the first
2587 
character of their value.  (gdevpdfm.c)
2588 
	- If a pdfmark added annotations to a page after the end of that
2589 
page had been reached, those annotations would be lost.  (gdevpdf.c)
2590 
	- ANN, LNK, DEST, and PS pdfmarks ignored the object name, if any.
2591 
(Only OBJ and BP processed the name.) Unfortunately, fixing this required a
2592 
complete overhaul of the way that resources and PDF objects were represented
2593 
internally.  The result is both simpler and more general, but it involved a
2594 
major upheaval in the PDF writer code.  (lib/gs_pdfwr.ps, gdevpdfo.h,
2595 
gdevpdfx.h, gdevpdf.c, gdevpdff.c, gdevpdfi.c, gdevpdfm.c, gdevpdfo.c,
2596 
gdevpdfr.c, gdevpdft.c, gdevpdfu.c)
2597 
	- EP pdfmarks didn't close any open text context.  (gdevpdfm.c)
2598 
 
2599 
Adds debugging code to check the consistency of the embedded Type 1 font
2600 
writer.  (gdevpdff.c)
2601 
 
2602 
Makes /A and /F at the top level of an annotation or outline pdfmark
2603 
equivalent to /Action and /File respectively.  See the code for more
2604 
information.  (gdevpdfm.c)
2605 
 
2606 
</pre><h3><a name="5.91_Library"></a>Library</h3><pre>
2607 
 
2608 
Fixes problems:
2609 
	- Degenerate Bezier curves could cause a division by zero.
2610 
(gxpcopy.c)
2611 
	- Some macros used in non-FPU configurations were missing some
2612 
needed uses of const, and in one case an additional cast.  (gxfarith.h,
2613 
gxfixed.h)
2614 
 
2615 
Changes the discard macro to upper-case.  (stdpre.h)
2616 
 
2617 
</pre>
2618 
 
2619 
<hr>
2620 
 
2621 
<h2><a name="Version5.90"></a>Version 5.90 (beta) (8/20/99)</h2>
2622 
 
2623 
<p>
2624 
This is the first real candidate for the 6.0 release.  It does not fix all
2625 
known bugs, but it includes all planned functionality.  New in this fileset:
2626 
<ul>
2627 
<li>	- FunctionType 4 for PDF files.
2628 
<li>	- Alternate printer images for PDF files (-dUsePrinterImages
2629 
	switch).
2630 
<li>	- pdfwrite support for PDF "Cos objects" (without compression for
2631 
	streams).
2632 
<li>	- pdfwrite support for graphics objects named with BP/EP/SP
2633 
	(without compression for the object definition).
2634 
<li>	- pdfwrite font subsetting and embedded TrueType fonts.
2635 
</ul>
2636 
 
2637 
<h3><a name="5.90_Incompatible_changes"></a>Incompatible changes</h3><pre>
2638 
 
2639 
(Interpreter)
2640 
	- ref_stack_init now takes an additional argument.
2641 
	- no_time_slice_proc is removed -- use 0 instead.
2642 
(Library)
2643 
	- Notification client procedures and the gs_notify_ procedures
2644 
take different arguments.
2645 
	- The common part of a gs_function_t structure has changed.
2646 
	- gs_text_enum_init now returns a value that can indicate an error.
2647 
	- The font font_info procedure now takes an additional argument.
2648 
	- The IODevice open_device procedure is now defined as returning
2649 
 
2650 
	- gxp1fill.h is renamed gxp1impl.h.
2651 
	- Allocators now have an additional procedure they must implement,
2652 
and a state member they must initialize.
2653 
	- Most of the gs..basic.. structure definition macros have been
2654 
renamed.  The ptrs1_stringsN structure definition macros are removed.
2655 
	- Implementations of the text API now must provide a resync
2656 
procedure rather than a restart procedure.
2657 
 
2658 
</pre><h3><a name="5.90_Documentation"></a>Documentation</h3><pre>
2659 
 
2660 
Documents the new -dUsePrinterImages switch, and the expanded meaning of
2661 
-Z~.  (doc/Use.htm)
2662 
 
2663 
Updates FSF's address in documentation.  (lib/Fontmap.GS, lib/Fontmap.Sol,
2664 
gdevcd8.c)
2665 
 
2666 
Brings the PDF writer (ps2pdf) documentation up to date.  (doc/Ps2pdf.htm)
2667 
 
2668 
Updates the current-release documentation.  (doc/Current.htm,
2669 
doc/Readme.htm)
2670 
 
2671 
Updates the problem-reporting procedure for contributed drivers, and some
2672 
other new-user information.  (doc/New-user.htm)
2673 
 
2674 
</pre><h3><a name="5.90_Procedures"></a>Procedures</h3><pre>
2675 
 
2676 
Fixes bugs:
2677 
	- Because of a typo, the file gs_mgl_e.ps wasn't installed (on Unix
2678 
systems) by 'make install'.  (unixinst.mak)
2679 
	- The .dev files for drivers didn't depend on devs.mak.  (devs.mak)
2680 
	- The X driver didn't include a needed dependency on the bbox
2681 
device.  (devs.mak)
2682 
 
2683 
Incorporates the pdfmin package into the pdf package, since pdfmin was only
2684 
provided for very small-memory environments and is no longer useful.
2685 
(int.mak)
2686 
 
2687 
Adds additional prototype-checking switches, which are important on 64-bit
2688 
platforms and useful on all platforms, to the gcc compilation line.
2689 
(unix-gcc.mak)
2690 
 
2691 
</pre><h3><a name="5.90_Utilities"></a>Utilities</h3><pre>
2692 
 
2693 
Fixes bugs:
2694 
	- A backquote was misplaced in the Unix ps2pdf script.  (lib/ps2pdf)
2695 
	- Some example files didn't have %! headers.  (examples/alphabet.ps,
2696 
examples/waterfal.ps)
2697 
	- ansi2knr didn't handle preprocessor directives within a function
2698 
header.  (ansi2knr.c)
2699 
 
2700 
Cleans up some minor compiler complaints.  (genarch.c, genconf.c, echogs.c)
2701 
 
2702 
</pre><h3><a name="5.90_Drivers"></a>Drivers</h3><pre>
2703 
 
2704 
Fixes bugs:
2705 
	- The PostScript writer sometimes failed to reset the clip path,
2706 
causing parts of the output to be omitted or to appear incorrectly.
2707 
(gdevvec.c)
2708 
	- There was a type mismatch in a conditional.  (gdevxini.c)
2709 
	- A constant array wasn't declared as static.  (gdevpsdt.c)
2710 
	- Once again, there were some signed / unsigned char mismatches that
2711 
gcc apparently can't be forced to detect.  (gdevpsdt.c)
2712 
	- The alternative X drivers didn't have GC descriptors, which could
2713 
lead to memory corruption.  (gdevxalt.c)
2714 
	- The alternative X drivers didn't handle the closing of the
2715 
underlying X driver correctly, leading to a dangling pointer.  (gdevxalt.c)
2716 
	- Font subsetting didn't eliminate duplicate glyphs (glyphs
2717 
referenced more than once from the Encoding vector.)  (gdevpsd1.c,
2718 
gdevpsdt.c)
2719 
	- Type 1 font subsetting didn't ensure the presence of .notdef.
2720 
(gdevpsd1.c)
2721 
	- The embedded TrueType font writer wrote all 16-bit values
2722 
incorrectly.  This could explain a lot!  (gdevpsdt.c)
2723 
 
2724 
Cleans up public functions with no previous prototype.  (gdevtfax.h,
2725 
gdevx.h, gdevdfax.c, gdevtfax.c, gdevx.c, gdevxini.c, gdevxxf.c)
2726 
 
2727 
Adds some procedures to support font subsetting.  (gdevpsdf.h, gdevpsdf.c)
2728 
 
2729 
Adds an alternate font name for writing TrueType fonts.  (gdevpsdt.c)
2730 
 
2731 
Makes the TrueType font writer generate an OS/2 table, a Macintosh cmap, and
2732 
a name table (for the font name), as well as a Windows cmap and post, if
2733 
necessary.  (gdevpsdf.h, gdevpsdt.c)
2734 
 
2735 
</pre><h3><a name="5.90_Platforms"></a>Platforms</h3><pre>
2736 
 
2737 
Updates a couple of clients for the change in the IODevice open_device
2738 
procedure, eliminating some undesirable externs.  (gp_msio.c, gp_os2.c)
2739 
 
2740 
</pre><h3><a name="5.90_Fonts"></a>Fonts</h3><pre>
2741 
 
2742 
Adds OS/2 and maxp to the list of tables that must be preserved when loading
2743 
TrueType fonts.  (lib/gs_ttf.ps)
2744 
 
2745 
Registers the complete lists of glyphs in the Adobe Latin fonts as
2746 
pseudo-encodings.  (lib/gs_lgo_e.ps, lib/gs_lgx_e.ps, unixinst.mak)
2747 
 
2748 
</pre><h3><a name="5.90_PDF_writer"></a>PDF writer</h3><pre>
2749 
 
2750 
Fixes bugs:
2751 
	- One built-in font was sometimes substituted for another.
2752 
(gdevpdff.c)
2753 
	- Use of composite fonts often produced a rangecheck error.
2754 
(gdevpdft.c)
2755 
	- The structures for named objects were freed twice.  (gdevpdfx.h,
2756 
gdevpdf.c, gdevpdfo.c)
2757 
	- The code to avoid writing a blank between a Td command and
2758 
following text was fragile and still incorrect after being "fixed" twice.
2759 
We removed this minor optimization, at a small cost in file size when not
2760 
compressing.  (gdevpdft.c)
2761 
	- No Names tree was generated for named destinations specified as
2762 
strings.  Rather than do this, we now convert string destinations to names.
2763 
This doesn't scale up well, but it is simple and also is compatible with all
2764 
PDF versions from 1.1 on.  (gdevpdfm.c)
2765 
	- Fonts that define characters incrementally, such as the TrueType
2766 
fonts written by some versions of the AdobePS Windows driver, could omit
2767 
characters if embedded.  Fixing this required delaying writing out fonts
2768 
until the font was about to be freed or the writer was closed.  (gdevpdfx.h,
2769 
gdevpdff.c, gdevpdft.c)
2770 
 
2771 
Cleans up public functions with no previous prototype.  (gdevpdfx.h,
2772 
gdevpdf.c, gdevpdfm.c)
2773 
 
2774 
Updates client code for the change in gs_text_enum_init.  (gdevpdft.c)
2775 
 
2776 
Makes some changes towards handling show operations that must be split up
2777 
internally into multiple operations using different fonts.  (gdevpdfx.h,
2778 
gdevpdff.c, gdevpdft.c)
2779 
 
2780 
Implements the PUT pdfmark for the built-in objects (Catalog, DocInfo,
2781 
Page<#>, ThisPage, PrevPage, NextPage).  This required deferring writing out
2782 
page objects until the end of the document.  (lib/gs_pdfwr.ps, gdevpdfx.h,
2783 
gdevpdf.c, gdevpdff.c, gdevpdfm.c, gdevpdfo.c, gdevpdfu.c)
2784 
 
2785 
Adds table entries, but not parsing, checking, or functionality, for the new
2786 
Acrobat 4 pdfmarks related to document logical structure.  (gdevpdfm.c)
2787 
 
2788 
Implements stream-type Cos objects.  (lib/gs_pdfwr.ps, gdevpdfx.h,
2789 
gdevpdf.c, gdevpdfm.c, gdevpdfo.c, gdevpdfp.c, gdevpdfu.c)
2790 
 
2791 
Implements BP/EP/SP pdfmarks.  (gdevpdfx.h, gdevpdf.c, gdevpdfi.c,
2792 
gdevpdfm.c)
2793 
 
2794 
Changes enumeration and #defined names to upper case, and adds _t to type
2795 
names.  (gdevpdfx.h, gdevpdf*.c)
2796 
 
2797 
Adds an OS/2 table for embedded fonts if missing.  (gdevpdff.c)
2798 
 
2799 
Makes the allocator for the PDF device's internal structures be the stable
2800 
allocator of the device's allocator, not the C heap.  This required
2801 
correcting a number of GC descriptors.  (gdevpdfx.h, gdevpdf.c, gdevpdfu.c)
2802 
 
2803 
Replaces the text restart procedure with the new resync procedure.
2804 
(gdevpdft.c)
2805 
 
2806 
</pre><h3><a name="5.90_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
2807 
 
2808 
Fixes problems:
2809 
	- Failure to find a font in the Resources dictionary signalled an
2810 
/undefinedfont error (which does not exist) rather than /invalidfont.
2811 
(lib/pdf_font.ps)
2812 
 
2813 
Implements FunctionType 4 functions.  (lib/pdf_draw.ps, zfunc4.c)
2814 
 
2815 
Implements the -dUsePrinterImages switch to use "alternate" printer images
2816 
when rendering.  (lib/pdf_draw.ps)
2817 
 
2818 
</pre><h3><a name="5.90_Interpreter"></a>Interpreter</h3><pre>
2819 
 
2820 
Fixes problems:
2821 
	- Some pointers were declared as ref * that actually could be
2822 
ref_packed *, potentially confusing compilers that follow the new, stricter
2823 
ANSI C rules about alignment aliasing.  (idebug.h, idebug.c, igc.c,
2824 
igcref.c, zmisc.c)
2825 
	- cshow didn't restore the root font after executing the procedure,
2826 
producing incorrect results if the procedure did a setfont.  (ichar.h,
2827 
zcfont.c, zchar.c)
2828 
	- A needed const-breaking cast was omitted.  (zmisc.c)
2829 
	- The memory validator could cause an unaligned access.  (ilocate.c)
2830 
	- restore could free parts of the stacks that were still in use.  We
2831 
fixed this long-standing problem using the new concept of stable allocators.
2832 
(interp.c)
2833 
 
2834 
Moves the implementation of the abs operator to C, required for FunctionType
2835 
4 support.  (lib/gs_init.ps, zarith.c)
2836 
 
2837 
Makes more operator procedures public, required for FunctionType 4 support.
2838 
(zarith.c, zmath.c, zrelbit.c, ztype.c)
2839 
 
2840 
Adds an additional parameter to ref_stack_init, to allow creating a
2841 
temporary stack without having an allocator.  (istkparm.h, istack.h,
2842 
interp.c, istack.c)
2843 
 
2844 
Cleans up public functions with no previous prototype.  (files.h, ichar.h,
2845 
icstate.h, ifilter2.h, ifrpred.h, ifwpred.h, igcstr.h, iimage.h, iimage2.h,
2846 
iinit.h, imain.h, interp.h, iscanbin.h, ivmem2.h, oparc.h, opextern.h,
2847 
icontext.c, igc.c, iinit.c, imain.c, inobtokn.c, interp.c, iscan.c,
2848 
iscanbin.c, zchar.c, zcharout.c, zcolor.c, zcolor1.c, zcontrol.c, zdevice.c,
2849 
zdpnext.c, zdps.c, zfdecode.c, zfile.c, zfilter2.c, zfont0.c, zfunc0.c,
2850 
zfunc3.c, zfzlib.c, zgeneric.c, zht1.c, zht2.c, zimage.c, zimage2.c,
2851 
ziodev.c, zmath.c, zpath1.c, zupath.c, zusparam.c, zvmem.c, zvmem2.c)
2852 
 
2853 
Updates client code for the tweak in the definition of the IODevice
2854 
open_device procedure.  (ziodev.c)
2855 
 
2856 
Implements stable local and global VM allocators.  This required changing
2857 
more places than we would have liked.  (ialloc.c, igc.c, ilocate.c, imain.c,
2858 
interp.c, ireclaim.c, isave.c, zcontext.c)
2859 
 
2860 
Removes the global member of gs_ref_memory_t, since it isn't used.
2861 
(gxalloc.h, ialloc.c, zcontext.c)
2862 
 
2863 
Adds more tracing to the relocation phase of the garbage collector.
2864 
(igcref.c)
2865 
 
2866 
</pre><h3><a name="5.90_Streams"></a>Streams</h3><pre>
2867 
 
2868 
Fixes problems:
2869 
	 - jpeg_open_backing_store no longer had the correct arguments.
2870 
(This had no effect in practice, since the procedure was never called.)
2871 
(sjpegc.c)
2872 
 
2873 
Cleans up public functions with no previous prototype.  (scfdgen.c,
2874 
scfetab.c, sjpegc.c, slzwce.c, slzwd.c, stream.c)
2875 
 
2876 
Adds some tracing to the image scaling stream.  (siscale.c)
2877 
 
2878 
</pre><h3><a name="5.90_Library"></a>Library</h3><pre>
2879 
 
2880 
Fixes bugs:
2881 
	- A null OutputFile name could cause an error.  (gxdevice.h,
2882 
gsdevice.c, gsfname.c)
2883 
	- Shading with non-monotonic Functions produced incorrect output.
2884 
(gxshade1.c)
2885 
	- An #undef didn't match the #define it was supposed to cancel.
2886 
(gxchar.c)
2887 
	- The default next_char_glyph procedure didn't handle FROM_CHARS or
2888 
FROM_SINGLE_CHAR data sources.  (gstext.c)
2889 
	- When finalizing a forwarding device, the target pointer in the
2890 
device wasn't cleared, leading to an incorrect attempt to access it later.
2891 
(gdevnfwd.c)
2892 
	- Interpolated images were broken, probably since 5.81.
2893 
(gxiscale.c)
2894 
	- Some color space implementation procedures hadn't been updated to
2895 
add 'const' to the color space argument.  (gscie.c)
2896 
	- A constant had a signed/unsigned ambiguity on systems where
2897 
sizeof(long) > 4.  (gsccode.h)
2898 
	- The font font_info procedure didn't provide for scaling.
2899 
(gxfont.h)
2900 
 
2901 
Simplifies the notification mechanism to remove the concept of client and
2902 
generating object.  Registration now just takes a closure (procedure +
2903 
opaque data); events pass the closure data and event data.  (gsnotify.h,
2904 
gsfont.c, gsnotify.c)
2905 
 
2906 
Changes gs_notify_unregister so that it can unregister all registrations of
2907 
a particular client rather than only one.  (gsnotify.h, gsnotify.c)
2908 
 
2909 
Adds support for "vanilla" Functions at the library level.  (gsfunc.h,
2910 
gsfunc.c)
2911 
 
2912 
Adds some tracing for Functions.  (gsfunc3.c)
2913 
 
2914 
Redefines function monotonicity to indicate whether the function is
2915 
increasing or decreasing, and implements monotonicity correctly for all
2916 
FunctionTypes except 4.  (gsfunc.h, gxfunc.h, gsfunc0.c, gsfunc3.c)
2917 
 
2918 
Makes Type 0 fonts check that they are being used with a string, not a
2919 
character or (a) glyph(s).  (gxtext.h, gschar.c, gschar0.c, gstext.c,
2920 
gxchar.c)
2921 
 
2922 
Cleans up public functions with no previous prototype.  (gdevmem.h,
2923 
gpcheck.h, gscie.h, gserror.h, gsmemory.h, gxcie.h, gxcldev.h, gxclpath.h,
2924 
gxcmap.h, gxcspace.h, gxfixed.h, gxfont0.h, gxp1fill.h [deleted],
2925 
gxp1impl.h, math_.h, std.h, gconf.c, gdevdrop.c, gdevm1.c, gdevm2.c,
2926 
gdevm4.c, gdevm8.c, gdevm24.c, gdevmr1.c, gdevmr2n.c, gdevprn.c, gsbittab.c,
2927 
gscdef.c, gscie.c, gsciemap.c, gscspace.c, gscscie.c, gsdevmem.c,
2928 
gsdparam.c, gshtscr.c, gsimpath.c, gsiodev.c, gsmisc.c, gsnorop.c, gspath.c,
2929 
gspcolor.c, gsptype1.c, gsropc.c, gsutil.c, gxacpath.c, gxclist.c,
2930 
gxcpath.c, gxi12bit.c, gxicolor.c, gxifast.c, gximono.c, gxiscale.c,
2931 
gxp1fill.c, gxpath2.c)
2932 
 
2933 
Gets rid of some remaining vestiges of 16-bit ints.  (gdevm1.c, gsbitops.c)
2934 
 
2935 
Adds procedures to register clients for notification when a font is freed.
2936 
(gxfont.h, gsfont.c)
2937 
 
2938 
Defines the IODevice open_device procedure as returning 1 if it opened a new
2939 
stream, 0 if it returned an existing stream.  This eliminates some awkward
2940 
externs.
2941 
 
2942 
Adds the concept of a stable allocator -- an allocator that allocates from
2943 
the same heap and in the same VM space as another allocator, but is not
2944 
subject to save and restore.  (gsmemory.h, gsmemraw.h, gsalloc.c,
2945 
gsmalloc.c, gsmemlok.c, gsmemret.c, gsnogc.c)
2946 
 
2947 
Adds some new macros to make defining new kinds of fixed-format structures
2948 
simpler.  (gsstruct.h)
2949 
 
2950 
Replaces the text processing restart procedure with a more general resync
2951 
procedure, which can be used to restart partway through a string.  We retain
2952 
gs_text_restart for backward compatibility and general usefulness.
2953 
(gstext.h, gxtext.h, gdevbbox.c, gstext.c, gxchar.c)
2954 
 
2955 
Adds the Adobe Latin glyph sets as pseudo-encodings.  (gsccode.h)
2956 
 
2957 
</pre>
2958 
 
2959 
<hr>
2960 
 
2961 
<h2><a name="Version5.88"></a>Version 5.88 (tester) (8/3/99)</h2>
2962 
 
2963 
<p>
2964 
This fileset adds the ability to reference and embed TrueType fonts in PDF
2965 
output.  Unfortunately, even though the resulting PDF files work fine with
2966 
Ghostscript itself, Acrobat Reader apparently can't handle embedded TrueType
2967 
fonts with non-standard Encodings.  We hope to fix this problem during the
2968 
6.0 beta test period.
2969 
 
2970 
<p>
2971 
This fileset also adds the ability to buffer X Windows output in a
2972 
client-side bitmap.  This is typically more efficient than trying to push
2973 
many small commands through the X client/server knothole, especially if
2974 
bitmap images or RasterOp are involved.
2975 
 
2976 
<p>
2977 
Some reported problems have been deliberately left unfixed: we will need
2978 
every minute of the 13 days before the start of the 6.0 beta test period to
2979 
implement the last few items of functionality scheduled for the 6.0 release,
2980 
and we can fix problems (but not add functionality) during the beta test
2981 
period.
2982 
 
2983 
<h3><a name="5.88_Incompatible_changes"></a>Incompatible changes</h3><pre>
2984 
 
2985 
(Library)
2986 
	- The box_device member of the bbox device is replaced by the
2987 
box_data member, with a different meaning.
2988 
	- The x_rect structure is removed; all uses are changed to
2989 
gs_int_rect.
2990 
	- gdevpstr.h is renamed spprint.h.
2991 
	- The parameter printing procedures are moved from gdevpsdf.[hc] to
2992 
spsdf.[hc].
2993 
	- Clients must now allocate gs_font* objects using gs_font_alloc or
2994 
gs_font_base_alloc, not directly with gs_alloc_struct.
2995 
	- The first (vptr) argument of enum_ptrs procedures is now const *.
2996 
EV_CONST is no longer defined.
2997 
	- The pep argument of enum_ptrs procedures is now enum_ptr_t *
2998 
rather than const void **.
2999 
	- The font glyph_pieces procedure is replaced with an option for
3000 
glyph_info.
3001 
	- The font encode_char procedure now takes an additional glyph_space
3002 
argument.
3003 
	- The o_large flag in object headers is renamed o_alone; o_lmark and
3004 
o_lsize no longer exist.  The DO_LARGE and DO_SMALL macros for enumerating
3005 
objects in a chunk are also removed.
3006 
 
3007 
</pre><h3><a name="5.88_Documentation"></a>Documentation</h3><pre>
3008 
 
3009 
Fixes problems:
3010 
	- News entries since 5.72 had a missing &lt;li&gt; in the table of
3011 
contents entry.  (doc/News.htm)
3012 
	- gs_text_params_t still referred to REPLACE_X_WIDTHS and
3013 
REPLACE_Y_WIDTHS rather than REPLACE_WIDTHS.  (gstext.h)
3014 
 
3015 
Clarifies that the font glyph_outline procedure must append a final moveto
3016 
for the advance width.  (gxfont.h)
3017 
 
3018 
Clarifies that the font enumerate_glyph procedure enumerates glyphs in an
3019 
unpredictable order.  (gxfont.h)
3020 
 
3021 
Documents that reference counted freeing procedures for structures with
3022 
finalization must free the structure itself first rather than last.
3023 
(gsrefct.h)
3024 
 
3025 
Updates documentation on building Ghostscript on MS-DOS and MS Windows.
3026 
(doc/Make.htm)
3027 
 
3028 
Adds some documentation on how the makefiles are / should be structured.
3029 
(doc/Source.htm)
3030 
 
3031 
Documents the new parameters for the X driver.  (doc/Use.htm)
3032 
 
3033 
Updates the language documentation to refer properly to PostScript
3034 
LanguageLevel 3 and PDF 1.3. (doc/Language.htm)
3035 
 
3036 
</pre><h3><a name="5.88_Procedures"></a>Procedures</h3><pre>
3037 
 
3038 
Fixes problems:
3039 
	- An omitted space in a makefile caused an incompatibility with the
3040 
VMS build utilities.  (lib.mak)
3041 
	- The gsindent script was omitted from the fileset.  (gsindent)
3042 
	- The core library didn't include stream.c, which is now required.
3043 
(lib.mak)
3044 
	- The workaround for the peculiarities of the Watcom compiler's
3045 
command line syntax didn't work.  (zlib.mak)
3046 
	- A DOS command line overflowed in the makefile.  We patched this by
3047 
deleting the bmpgray device from the Borland Windows platform.
3048 
(bcwin32.mak)
3049 
 
3050 
Provides a .lnk file required by the revised linking procedures on MS
3051 
Windows.  (gsdll32w.lnk)
3052 
 
3053 
Straightens out the Watcom makefiles so that it is possible to build a
3054 
Windows executable and DLL using the Watcom compiler.  This required moving
3055 
some parameters around in the other PC makefiles.  (bcwin32.mak,
3056 
msvccmd.mak, watc.mak, watcw32.mak, wccommon.mak, winint.mak, winlib.mak)
3057 
 
3058 
</pre><h3><a name="5.88_Drivers"></a>Drivers</h3><pre>
3059 
 
3060 
Fixes problems:
3061 
	- The X driver reported the wrong parameter name for errors in the
3062 
value of the WindowID or .IsPageDevice parameter.  (gdevxini.c)
3063 
	- The X driver calculated the Y window dimension incorrectly when
3064 
resizing the window if X and Y resolutions were different.  (Never happens
3065 
in practice.)  (gdevxini.c)
3066 
	- The bmpasep8 device was defined as gx_device_printer rather than
3067 
gx_device_async.  (gdevbmpa.c)
3068 
	- Some casts between signed and unsigned char * were missing.
3069 
(gdevpdff.c, gdevpdft.c)
3070 
	- The PDF writer didn't handle reencoded characters properly in
3071 
non-embedded fonts.  (gdevpdfx.h)
3072 
	- The PDF writer allocated new structures while being closed,
3073 
causing memory corruption if the close procedure was called for
3074 
finalization.  (gdevpdff.c, gdevpsd1.c)
3075 
	- The PDF writer tried to close the resource file twice.  (bug
3076 
introduced since 5.50) (gdevpdf.c)
3077 
	- The PDF writer failed to work around a bug in Acrobat 3 Reader's
3078 
Print function related to re-encoded fonts.  (gdevpdft.c)
3079 
	- The PDF writer incorrectly specified ASCII85Encode rather than
3080 
ASCII85Decode for non-binary embedded fonts.  (gdevpdff.c)
3081 
	- The PDF writer didn't handle embedded fonts with a non-standard
3082 
FontMatrix correctly.  (gdevpdft.c)
3083 
	- The PDF writer didn't handle reassigned characters correctly.
3084 
(gdevpdft.c)
3085 
	- When embedding a Type 1 font, the PDF writer didn't check that the
3086 
font contains only CharStrings (no PostScript procedures), no non-standard
3087 
OtherSubrs, and no CDevProc.  (gdevpsd1.c)
3088 
	- There was an unused label in the mswinpr2 driver.  (gdevwpr2.c)
3089 
	- The X driver didn't flush buffered output before reading back
3090 
bits from the display.  (gdevx.c)
3091 
	- The X driver still didn't set up the color mapping tables
3092 
correctly -- in particular, it didn't initialize cman.color_to_rgb before
3093 
setting up the dither ramp or cube.  This is at least the third time we have
3094 
"fixed" this problem.  (gdevxcmp.c)
3095 
 
3096 
Removes the remaining uses of gs_malloc, gs_free, and gs_memory_default from
3097 
Aladdin's non-display drivers.  (gdevbit.c, gdevbmp.c, gdevbmpa.c,
3098 
gdevcgm.c, gdevclj.c, gdevcljc.c, gdevdjet.c, gdevlj56.c, gdevmiff.c,
3099 
gdevpbm.c, gdevpcx.c, gdevpng.c, gdevpsim.c, gdevtfax.c, gdevtfnx.c,
3100 
gdevxalt.c)
3101 
 
3102 
Adds a MaxBitmap parameter to the X driver: the driver will maintain a
3103 
full-window pixmap in memory if it requires no more space than MaxBitmap.
3104 
The default value of this parameter is 0, meaning never use a client-side
3105 
bitmap.  (gdevx.h, gdevx.c, gdevxini.c, gdevxxf.c)
3106 
 
3107 
Moves the X device closing and get/put parameters procedures from gdevx.c to
3108 
gdevxini.c.  (gdevx.c, gdevxini.c)
3109 
 
3110 
Removes some remaining uses of gs_malloc and gs_free from the X driver.
3111 
Note that this requires making the X device structure properly
3112 
garbage-collectable.  (gdevx.h, gsstruct.h, gdevxini.c)
3113 
 
3114 
Removes the remaining uses of 'register' from the X driver.  (gdevx.c,
3115 
gdevxini.c)
3116 
 
3117 
Removes the remaining uses of the obsolete far_data keyword from Aladdin's
3118 
non-PC drivers.  (gdevbmp.c, gdevbmpa.c, gdevcgm.c, gdevlj56.c, gdevmiff.c,
3119 
gdevp2up.c)
3120 
 
3121 
Improves the X driver's algorithm for deciding when to update the screen,
3122 
and makes its parameters available for reading and setting.  (gdevx.h,
3123 
gdevx.c, gdevxini.c)
3124 
 
3125 
In the X driver's color mapper, improves performance slightly by replacing
3126 
multiplies and divides with shifts and table lookups in the normal case of
3127 
standard color maps.  (gdevxcmp.h, gdevxcmp.c)
3128 
 
3129 
Moves some filter-related code from the driver level to the stream level.
3130 
(gdevpsdf.c)
3131 
 
3132 
Moves some utilities for printing values in ASCII form from the driver level
3133 
to the stream level.  (devs.mak, gdevpdfx.h, gdevpstr.h [deleted], gdevps.c,
3134 
gdevpsde.c, gdevpsdf.c, gdevpsdp.c, gdevpstr.c [deleted])
3135 
 
3136 
Upgrades the PDF writer to handle TrueType fonts as well as Type 1.
3137 
(gdevpdfx.h, gdevpsdf.h, gdevpdff.c, gdevpdft.c, gdevpsde.c => gdevpsd1.c,
3138 
gdevpsdt.c)
3139 
 
3140 
Starts to implement font subsetting in the PDF writer. (gdevpdfx.h,
3141 
gdevpsdf.h, gdevpdff.c, gdevpsd1.c, gdevpsdt.c)
3142 
 
3143 
Partially implements WMode when writing font descriptors.  (gdevpdff.c)
3144 
 
3145 
Changes psdf_binary_writer so that adding the ASCII85 filter in
3146 
psdf_begin_binary doesn't require allocating any memory.  (gdevpsdf.h,
3147 
gdevpsdf.c)
3148 
 
3149 
Makes the PDF writer guess the Ascent and StemV values for embedded fonts
3150 
when it can't determine them by examining the font.  (gdevpdff.c)
3151 
 
3152 
Makes the PDF writer able to handle xshow and yshow (TEXT_REPLACE_WIDTHS).
3153 
(gdevpdft.c)
3154 
 
3155 
Updates code to reflect the addition of glyph_space to the font encode_char
3156 
and enumerate_glyph procedures.  (gdevpsdf.h, gdevpdff.c, gdevpdft.c,
3157 
gdevpsd1.c, gdevpsdf.c, gdevpsdt.c)
3158 
 
3159 
Removes some unnecessary #includes.  (gdevxres.c)
3160 
 
3161 
Removes the sample driver-based CRD from the variant X drivers, since this
3162 
created a pointless dependency.  (The `bit' drivers still provide this
3163 
feature, for testing.)  (gdevxalt.c)
3164 
 
3165 
Changes the default compatibility level of PDF output from 1.2 (Acrobat 3)
3166 
to 1.3 (Acrobat 4).  (gdevpdf.c)
3167 
 
3168 
</pre><h3><a name="5.88_Platforms"></a>Platforms</h3><pre>
3169 
 
3170 
Fixes problems:
3171 
	- A comment included an extra /*.  (gp_mswin.c)
3172 
	- The definitions for min and max in a couple of files disagreed
3173 
with the ones typically provided in system header files.  (dwimg.cpp,
3174 
dwtext.cpp)
3175 
 
3176 
Removes some unnecessary code related to generating temporary file names.
3177 
(gp_iwatc.c)
3178 
 
3179 
</pre><h3><a name="5.88_Fonts"></a>Fonts</h3><pre>
3180 
 
3181 
Changes the loader for TrueType fonts to keep the 'instructions', which are
3182 
required if the font is going to be written out in a PDF file.
3183 
(lib/gs_ttf.ps)
3184 
 
3185 
Adds some more debugging output to the TrueType font loader.
3186 
(lib/gs_ttf.ps)
3187 
 
3188 
Registers the MacGlyphEncoding so it can be made available to the PDF
3189 
writer.  (lib/gs_mgl_e.ps, lib/gs_ttf.ps, unixinst.mak, gsccode.h, ifont.h)
3190 
 
3191 
</pre><h3><a name="5.88_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
3192 
 
3193 
Fixes problems:
3194 
	- The serif and small-caps flags in the FontDescriptor were ignored
3195 
when doing font substitution.  (lib/gs_fonts.ps, lib/pdf_font.ps)
3196 
	- The ri operator was undefined.  We added a dummy definition.
3197 
(lib/pdf_ops.ps)
3198 
	- The redefinitions of restore could cause a recursion loop.
3199 
(lib/gs_fform.ps, lib/gs_lev2.ps)
3200 
	- There was an extra gsave executed for each page, causing the
3201 
graphics state stack to grow deeper and deeper, which caused problems when
3202 
wrapping up at the end of execution.  (lib/pdf_main.ps)
3203 
 
3204 
Implements the sh operator.  (lib/pdf_draw.ps)
3205 
 
3206 
Works around a bug in some PDF files generated by Adobe's PDF library (?),
3207 
which attempt to create a font Encoding array with more than 256 elements.
3208 
(lib/pdf_font.ps)
3209 
 
3210 
</pre><h3><a name="5.88_Interpreter"></a>Interpreter</h3><pre>
3211 
 
3212 
Fixes problems:
3213 
	- The GNU readline completion code (which Aladdin did not write) was
3214 
completely wrong.  (gp_gnrdl.c)
3215 
	- The top-level restore sometimes tried to restore global VM an
3216 
extra time, leading to memory corruption.  (bug probably introduced in 5.85)
3217 
(isave.c)
3218 
	- The glyph_ref procedure was defined in two different places
3219 
(inconsistently).  (ichar.h, zchar.c, zchar1.c)
3220 
 
3221 
Restructures the name table to improve cache coherence and to make it
3222 
possible to store initial name strings in ROM.  (iname.h, inamedef.h,
3223 
inames.h, inamestr.h, igc.c, iname.c, isave.c)
3224 
 
3225 
Changes the scanner so it doesn't copy name strings when scanning a compiled
3226 
init string.  This reduces RAM requirements by about 20K when using compiled
3227 
initialization.  (iscan.c)
3228 
 
3229 
Removes redundant FontBBox correction code, since this is now handled by the
3230 
library.  (zfont42.c)
3231 
 
3232 
Updates the Type 1 and Type 42 font code to implement the new font
3233 
procedures.  (icharout.h, zcharout.c, zchar1.c, zchar42.c, zfont1.c,
3234 
zfont42.c)
3235 
 
3236 
Simplifies the code that checks whether a grestore needs to do a
3237 
setpagedevice.  (zdevice2.c)
3238 
 
3239 
Updates code to reflect the change of the vptr argument of enum_ptrs
3240 
procedures to const *.  (igcref.c)
3241 
 
3242 
Updates code to reflect the change in the pep argument of enum_ptrs
3243 
procedures to enum_ptr_t *.  (igc.h, iscan.h, istruct.h, igc.c, igcref.c,
3244 
ilocate.c, iscan.c)
3245 
 
3246 
Updates code to reflect the addition of glyph_space to the font encode_char
3247 
and enumerate_glyph procedures.  (bfont.h, ifont.h, zbfont.c, zfont1.c,
3248 
zfont32.c, zfont42.c)
3249 
 
3250 
Cleans up some code details.  (idebug.h, ifunc.h, iparray.h, istream.h,
3251 
zfunc.c)
3252 
 
3253 
Removes some no longer needed test code.  (zfont1.c)
3254 
 
3255 
Updates memory manager code to reflect the change from o_large to o_alone.
3256 
(igc.c, igcref.c, ilocate.c, isave.c)
3257 
 
3258 
Changes the printed font substitution message to be closer to what some
3259 
Adobe products print if SHORTERRORS is defined.  (Thanks to Andrew Chilvers
3260 
for the suggestion.)  (lib/gs_fonts.ps)
3261 
 
3262 
</pre><h3><a name="5.88_Streams"></a>Streams</h3><pre>
3263 
 
3264 
Fixes problems:
3265 
	- The fix in 5.85 for ASCII85Encode EOLs was wrong and caused a word
3266 
of data to be dropped occasionally.  (sfilter2.c)
3267 
 
3268 
Moves some filter-related code from the driver level to the stream level.
3269 
(stream.h, stream.c)
3270 
 
3271 
Moves some utilities for printing values in ASCII form from the driver level
3272 
to the stream level.  (lib.mak, spprint.h, spsdf.h, spprint.c, spsdf.c)
3273 
 
3274 
Adds some more tracing output for image scaling.  (siscale.c)
3275 
 
3276 
</pre><h3><a name="5.88_Library"></a>Library</h3><pre>
3277 
 
3278 
Fixes problems:
3279 
	- The bbox device's check for whether a rectangle filled the entire
3280 
page was wrong.  (gdevbbox.c)
3281 
	- The bbox device didn't correctly handle parallelograms, triangles,
3282 
or thin lines with points specified in other than ascending order.
3283 
(gdevbbox.c)
3284 
	- The bbox device smashed the reference count of the text enumerator
3285 
it created, causing a memory leak.  (gdevbbox.c)
3286 
	- The bbox device didn't copy back all the dynamic information from
3287 
a subsidiary text enumerator, with unpredictable results.  (gxtext.h,
3288 
gdevbbox.c, gstext.c)
3289 
	- The default implementation of glyph_info for fonts incorrectly
3290 
reported that it returned values for all members, not just the ones it knew
3291 
about.  (gsfont.c)
3292 
	- The profiling implementation of memset was incorrect, leading to
3293 
memory smashing.  (gsmisc.c)
3294 
	- The default implementation of glyph_info had a memory leak.
3295 
(gsfont.c)
3296 
	- The default implementation of character rendering didn't correctly
3297 
handle the case where the character was in the cache and only the character
3298 
width was requested.  (gxchar.c)
3299 
	- Text processing didn't correctly handle REPLACE_WIDTHS if the X
3300 
and Y width arrays were different.  (The PostScript interpreter never does
3301 
this.)  (gstext.h, gstext.c, gxchar.c)
3302 
	- Compositing devices weren't initialized properly, leading to
3303 
invalid accesses.  This is the last (?) bit of the device reference counting
3304 
bug tail.  (gsalphac.c, gsropc.c)
3305 
 
3306 
Changes the bbox device to make the procedures for managing the bounding box
3307 
virtual, so the X device can be a subclass.  (gdevbbox.h, gdevbbox.c)
3308 
 
3309 
Changes the bbox device so it always adds the bounding box after doing the
3310 
drawing operation rather than before, for the benefit of the buffering X
3311 
device.  (gdevbbox.c)
3312 
 
3313 
Removes some remaining uses of gs_memory_default.  (gdevdrop.c)
3314 
 
3315 
Removes all uses of the obsolete far_data keyword from the library.
3316 
(gconf.c, gdevbbox.c)
3317 
 
3318 
Changes the bbox device so it doesn't run drawing algorithms twice if it has
3319 
a target that uses the default implementation.  (gdevbbox.c)
3320 
 
3321 
Speeds up the implementation of fill_rectangle for 16-bit memory devices.
3322 
(gdevm16.c)
3323 
 
3324 
Makes TrueType fonts implement the new font procedures.  (gxfont42.h,
3325 
gxmatrix.h, gsmatrix.c, gstype42.c)
3326 
 
3327 
Adds a gs_id to gs_font objects, so that fonts with the same name can be
3328 
distinguished reliably without relying on the address.  (gxfont.h, gsfont.c)
3329 
 
3330 
Makes the vptr argument of enum_ptrs procedures be const *.  This is a
3331 
long-overdue change.  (gsstype.h, gxxfont.h, gsalloc.c, gsfont.c,
3332 
gsmemory.c) ****** REDO THE CONST-BREAKING CASTS IN gsfont.c ******
3333 
 
3334 
Changes the pep argument of enum_ptrs from const void ** to enum_ptr_t *, to
3335 
get rid of some hacks in enum_ptrs implementations that had to construct
3336 
temporary gs_strings.  (gsstruct.h, gsstype.h, gstext.h, gsalloc.c,
3337 
gscolor2.c, gsfont.c, gsmemory.c, gstext.c)
3338 
 
3339 
Adds a general mechanism that provides for an arbitrary number of clients to
3340 
be notified when an event occurs.  For the moment, we only use it to notify
3341 
PDF writers when a font is about to be freed.  (gsnotify.h, gsnotify.c)
3342 
 
3343 
Makes fonts use the new notification mechanism to notify clients when the
3344 
font is about to be freed.  (gxfont.h, gsfont.c)
3345 
 
3346 
Adds a gs_text_set_cache procedure to parallel restart and retry.
3347 
(gstext.h, gxtext.h, gstext.c)
3348 
 
3349 
Adds a glyph_space argument to the font encode_char and enumerate_glyph
3350 
procedures, so that clients can choose between glyph names and glyph indices
3351 
in environments that use both.  (gsccode.h, gxchar.h, gxfont.h, gxfont42.h,
3352 
gsfont.c, gstype42.c, gxchar.c)
3353 
 
3354 
Changes the bbox device so it optionally considers white to be opaque.
3355 
(gdevbbox.h, gdevbbox.c)
3356 
 
3357 
Cleans up some code details.  (gshsb.h)
3358 
 
3359 
Adds a hack to suppress warning messages from the Watcom compiler about
3360 
testing constant values.  (stdpre.h)
3361 
 
3362 
Replaces the glyph_pieces font procedure with a GLYPH_INFO_PIECES option for
3363 
glyph_info.  (gxfont.h, gxfont42.h, gsfont.c, gstype42.c)
3364 
 
3365 
Adds a font_info font procedure, similar to glyph_info but giving
3366 
information about the font as a whole.  (gxfont.h)
3367 
 
3368 
In order to fix a bug in resizing large objects, gets rid of the concept of
3369 
large objects entirely, replacing it with the concept of an 'alone' object
3370 
that is guaranteed to be the only object in its chunk.  (gxalloc.h, gxobj.h,
3371 
gsalloc.c)
3372 
 
3373 
Adds some more tracing output for interpolated images.  (gxiscale.c)
3374 
 
3375 
Adds a _long parameter setting procedure to parallel _bool, _enum, and _int.
3376 
(gsparamx.h, gsparamx.c)
3377 
 
3378 
</pre>
3379 
 
3380 
<hr>
3381 
 
3382 
<h2><a name="Version5.87"></a>Version 5.87 (tester) (6/29/99)</h2>
3383 
 
3384 
<p>
3385 
In this fileset, the pdfwrite device finally handles general Type 1 fonts,
3386 
and can write them in both embedded and non-embedded form.  This fileset
3387 
also contains a few more changes to the text API, and some incompatible
3388 
changes to the gs_font procedure vector: more such changes are likely.  It
3389 
also fixes a couple of long-standing pdfmark bugs.
3390 
 
3391 
<p>
3392 
NOTE: there are known problems in PDF output with non-embedded fonts (fonts
3393 
represented only by a descriptor): some characters will be missing, and
3394 
because of bugs in Acrobat's Print function, even more characters will be
3395 
missing or wrong when printing from Acrobat.  We will fix our problems, and
3396 
work around Acrobat's bugs, in the next couple of filesets.
3397 
 
3398 
<h3><a name="5.87_Incompatible_changes"></a>Incompatible changes</h3><pre>
3399 
 
3400 
(Library)
3401 
	- Text enumerators now have a release procedure.
3402 
	- gx_device_text_begin no longer stores its arguments into the
3403 
enumerator: the driver text_begin procedure must do this.
3404 
	- The argument list for the font encode_char procedure no longer
3405 
includes the enumerator, and the second argument is now a gs_char rather
3406 
than a gs_char *.
3407 
	- The font next_char procedure is removed.  (It has been obsolete
3408 
for a while.)  The next_glyph procedure is renamed next_char_glyph.
3409 
	- The first argument of the font init_fstack, build_char, and
3410 
next_glyph procedures is changed from gs_show_enum * to gs_text_enum_t *.
3411 
	- gx_font_stack[_item] is renamed gx_font_stack[_item]_t.
3412 
	- New font procedures have been added, of which two (enumerate_glyph
3413 
and glyph_outline) are required.  The font procedure vector has been
3414 
reorganized.
3415 
	- The Type 1 font next_glyph procedure is replaced by the gs_font
3416 
enumerate_glyph procedure.
3417 
	- psdf_embed_type1_font is renamed psdf_write_type1_font, and has
3418 
an additional argument.
3419 
	- psdf_alloc_param_printer takes slightly different arguments;
3420 
print_binary_ok and print_ASCII85_ok are now upper-case.
3421 
 
3422 
</pre><h3><a name="5.87_Documentation"></a>Documentation</h3><pre>
3423 
 
3424 
Reorganizes the driver API documentation slightly, documents the fact that
3425 
get_alpha_bits and draw_line are obsolete, and documents the driver text
3426 
API.  (doc/Drivers.htm)
3427 
 
3428 
Documents an additional Irix configuration where the compiler doesn't work.
3429 
(doc/Make.htm)
3430 
 
3431 
</pre><h3><a name="5.87_Procedures"></a>Procedures</h3><pre>
3432 
 
3433 
Moves the %pipe% IODevice into lib.mak, since it is now included on Windows
3434 
as well as Unix.  (lib.mak, unix-aux.mak)
3435 
 
3436 
Adds the bmpgray driver to all platforms that include the other BMP drivers.
3437 
(bcwin32.mak, msvc32.mak, os2.mak, unix-gcc.mak, watc.mak, watcw32.mak)
3438 
 
3439 
</pre><h3><a name="5.87_Drivers"></a>Drivers</h3><pre>
3440 
 
3441 
Fixes problems:
3442 
	- The PS and PDF writers didn't maintain the font embedding lists
3443 
correctly.  (gdevpsdp.c)
3444 
	- The CreationDate in PDF output was always set to the current date,
3445 
and couldn't be set with a pdfmark.  We now don't set CreationDate at all,
3446 
since it is supposed to be the creation date of the original document, not
3447 
of the PDF file.  (gdevpdfm.c, gdevpdfu.c)
3448 
	- The Producer in PDF output couldn't be set with a pdfmark.
3449 
(gdevpdfx.h, gdevpdf.c, gdevpdfm.c, gdevpdfu.c)
3450 
	- pdfmarks with /Action /GoTo incorrectly retained the Action key.
3451 
(gdevpdfm.c)
3452 
	- pdfmarks didn't substitute /Dest => /D or /File => /F correctly.
3453 
(gdevpdfm.c)
3454 
 
3455 
Updates the PDF writer to use the new text API rather than the show
3456 
pseudo-parameter.  (gdevpdfx.h, gdevpdf.c, gdevpdfp.c, gdevpdft.c)
3457 
 
3458 
Changes pdf_open_document so that it opens the document even if some
3459 
resources have been allocated.  (gdevpdf.c)
3460 
 
3461 
Splits off pdfwrite utilities from top-level control, since the file was
3462 
getting too big.  (gdevpdfx.h, gdevpdf.c, gdevpdfu.c)
3463 
 
3464 
When writing PDF, avoids resetting the word spacing parameter if the string
3465 
doesn't contain any spaces, and the character spacing parameter if the
3466 
string has no more than 1 character.  (gdevpdft.c)
3467 
 
3468 
Splits off PDF font handling from text handling, since the file was getting
3469 
too big.  (gdevpdfx.h, gdevpdff.c, gdevpdft.c)
3470 
 
3471 
Implement both embedded and non-embedded fonts beyond the base 14 in the PDF
3472 
writer.  This code doesn't work very reliably yet.  (gdevpdfx.h, gdevpdff.c,
3473 
gdevpdft.c)
3474 
 
3475 
Adds a bmpgray driver that produces 8-bit gray-scale output.  (devs.mak,
3476 
gdevbmp.c)
3477 
 
3478 
Updates the PDF writer for changes in the gs_font procedure vector.
3479 
(gdevpdff.c, gdevpdft.c)
3480 
 
3481 
Updates the Type 1 font writer for changes in the gs_font procedure vector,
3482 
and adds some output options.  (gdevpsdf.h, gdevpsde.c)
3483 
 
3484 
Changes the printing parameter list implementation to take all of its
3485 
parametric arguments in the params structure, and changes the names of the
3486 
options.  (gdevpsdf.h, gdevpsde.c, gdevpsdf.c, gdevpdff.c, gdevpdfi.c,
3487 
gdevpdfu.c)
3488 
 
3489 
</pre><h3><a name="5.87_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
3490 
 
3491 
Fixes problems:
3492 
	- Indexed color spaces didn't allow the base space to be an indirect
3493 
reference.  (lib/pdf_draw.ps)
3494 
	- The CS and cs operators didn't accept a literal color space name
3495 
(as opposed to a color space resource name).  (lib/pdf_draw.ps)
3496 
	- Some PDF 1.2 files had a SM entry in graphics state dictionaries,
3497 
even though this is not documented and requires a LL3 interpreter.
3498 
(lib/pdf_draw.ps)
3499 
	- Generated font names included a % character, which could cause
3500 
problems for ps2pdf.  (lib/pdf_font.ps)
3501 
 
3502 
</pre><h3><a name="5.87_Interpreter"></a>Interpreter</h3><pre>
3503 
 
3504 
Fixes problems:
3505 
	- The calculation of the final index when enumerating the pointers
3506 
in a context state was incorrect.  (source bug only, no effect on execution)
3507 
(icontext.c)
3508 
 
3509 
Updates the interpreter's glue code for the changes in the PDF writer.
3510 
(lib/gs_pdfwr.ps)
3511 
 
3512 
Updates a client to use gs_font_alloc.  (zbfont.c)
3513 
 
3514 
Updates clients for changes in the gs_font procedure vector.  (zbfont.c,
3515 
zchar1.c, zfont0.c, zfont1.c, zfont32.c)
3516 
 
3517 
Updates a client for the change to psdf_write_type1_font.  (zfont1.c)
3518 
 
3519 
</pre><h3><a name="5.87_Library"></a>Library</h3><pre>
3520 
 
3521 
Fixes problems:
3522 
	- Some code used rc_decrement_only instead of gx_device_retain.
3523 
(Stylistic bug only.)  (gschar.c)
3524 
	- The finalize procedure for the character cache device could get
3525 
unset and/or the retained flag cleared, leading to a reference count not
3526 
getting decremented.  (gxccman.c)
3527 
	- Allocating a show enumerator didn't clear the show_gstate member.
3528 
(Probably no effect in practice.)  (gschar.c)
3529 
	- Cleaning up at the end of text processing was not consistent and
3530 
sometimes didn't get done. The old API used explicit and separate client
3531 
allocation (gs_show_enum_alloc), release (gs_show_enum_release), and freeing
3532 
(gs_free_object); release, but not free, was automatic at the end of
3533 
processing (in show_finish).  The new API has allocation in gs_text_begin or
3534 
gx_device_text_begin, no implicit release or free, and a single
3535 
gs_text_release call to handle both release and free.  Reconciling these
3536 
required adding an auto_release flag in the gs_show_enum structure to
3537 
indicate which API was used to create it, and a release procedure.  (The
3538 
auto_release flag is only needed for backward compatibility with clients
3539 
that use the old API.  Ghostscript itself no longer has such clients, but
3540 
the PCL interpreters do.)  (gxchar.h, gxtext.h, gdevbbox.c, gschar.c,
3541 
gstext.c, gxchar.c)
3542 
	- We were burned once again by gcc's acceptance of private/public
3543 
procedure mismatches.  (gxchar.c)
3544 
	- A line break was missing between the return type and a procedure
3545 
name.  (gsstate.c)
3546 
	- Show enumerators had an incorrect GC descriptor.  (gxchar.c)
3547 
	- Text enumerators didn't terminate their list properly.  (gstext.c)
3548 
 
3549 
Adds a debugging procedure that finds all the pointers to an object.  This
3550 
uses the GC's pointer enumeration procedures, so it will only work if all
3551 
structures have correct GC descriptors.  (Of course, we think this is true
3552 
of all of Ghostscript.)  The current implementation doesn't trace refs.
3553 
(gsalloc.c)
3554 
 
3555 
Removes remaining references from gxchar.c to procedures defined in
3556 
gschar.c.  The standard Ghostscript build now no longer needs gschar.c,
3557 
although we will keep it for the moment for backward compatibility.
3558 
(gschar.c, gxchar.c)
3559 
 
3560 
Removes an obsolete reference to gs_show_enum.  (gstype1.h)
3561 
 
3562 
Adds definitions for the built-in encoding indices.  (gsccode.h, gxfont.h,
3563 
gxxfont.h)
3564 
 
3565 
To make text_begin implementations callable, requires them, rather than
3566 
gx_device_text_begin, to save their parameters in the enumerator structure.
3567 
(gxtext.h, gstext.c, gxchar.c)
3568 
 
3569 
Adds a TEXT_DO_CHARWIDTH alternative to the text operation, to just advance
3570 
the current point by the character width (stringwidth rmoveto).  (gscpm.h,
3571 
gstext.h, gxchar.c, gxpath.c)
3572 
 
3573 
Adds procedures to allocate and initialize fonts.  (gxfont.h, gsfont.c)
3574 
 
3575 
Starts to revise the gs_font procedure vector to create a real "font socket"
3576 
API, adding several new procedures.  This is a NON-BACKWARD-COMPATIBLE
3577 
change, and there probably are more to come.  (gxchar.h, gxfont.h, gsfont.c,
3578 
gstext.c, gxchar.c)
3579 
 
3580 
Moves the Type 0 font stack from gs_show_enum to gs_text_enum_t, and renames
3581 
its types to gx_font_stack_[item_]t.  Also moves cmap_code.  (gxchar.h,
3582 
gxtext.h, gschar0.c, gstext.c, gxchar.c)
3583 
 
3584 
Moves the glyph enumeration procedure from Type 1 fonts to general fonts,
3585 
changing its name to enumerate_glyph.  (gxfont1.h)
3586 
 
3587 
Changes the debugging code for reference counting to call procedures, to
3588 
allow better breakpointing.  (gsrefct.h, gsmemory.c)
3589 
 
3590 
</pre>
3591 
 
3592 
<hr>
3593 
 
3594 
<h2><a name="Version5.86"></a>Version 5.86 (tester) (6/14/99)</h2>
3595 
 
3596 
<p>
3597 
This fileset includes the first batch of changes for the new driver-based
3598 
text API.  Unfortunately, a few of them are non-backward-compatible.
3599 
WARNING: This API is UNSTABLE and should not be used yet.  This includes the
3600 
APIs and structures in gxtext.h, and to a lesser extent those in gstext.h.
3601 
 
3602 
<h3><a name="5.86_Incompatible_changes"></a>Incompatible changes</h3><pre>
3603 
 
3604 
(Interpreter)
3605 
	- The default initialization of fonts now sets next_glyph rather
3606 
than next_char.
3607 
(Library)
3608 
	- The font argument of the driver text_begin procedure is no
3609 
longer declared as const.
3610 
	- Text enumerators now have a is_width_only and current_width
3611 
procedures; the restart procedure is renamed retry, and there is a new
3612 
restart procedure that does something different.
3613 
	- The scale member of gs_text_enum_t is renamed log2_scale.
3614 
	- gs_show_restore_font is removed.
3615 
	- The current_char, current_glyph, width, and log2_current_scale
3616 
members of gs_show_enum are removed (replaced by members of gs_text_enum_t).
3617 
	- The current_width member of gs_text_enum_t is removed.
3618 
	- Replaces TEXT_REPLACE_{X,Y}_WIDTHS with a single
3619 
TEXT_REPLACE_WIDTHS.
3620 
 
3621 
</pre><h3><a name="5.86_Documentation"></a>Documentation</h3><pre>
3622 
 
3623 
Fixes a number of outdated URLs.  (doc/Devices.htm, doc/Fonts.htm,
3624 
doc/Install.htm, doc/Language.htm, doc/Make.htm, doc/New-user.htm)
3625 
 
3626 
Documents the name change from gs_iso_e.ps to gs_il1_e.ps.
3627 
(doc/Psfiles.htm)
3628 
 
3629 
Documents the fact that a double % may be needed on MS systems.
3630 
(doc/Use.htm)
3631 
 
3632 
Documents that reversepath discards a trailing moveto, for compatibility
3633 
with Adobe implementations.  (gxpath2.c)
3634 
 
3635 
</pre><h3><a name="5.86_Procedures"></a>Procedures</h3><pre>
3636 
 
3637 
Fixes problems:
3638 
	- Some punctuation was omitted that affects builds on VMS systems.
3639 
(gs.mak)
3640 
	- 'make install' didn't install doc/History5.htm.  (unixinst.mak)
3641 
	- The Borland makefile put some generated files in the top-level
3642 
directory rather than the build directory.  (bcwin32.mak)
3643 
 
3644 
Updates the Unix install script for the name change of gs_iso_e.ps.
3645 
(unixinst.mak)
3646 
 
3647 
Moves the GNU-licensed drivers to a separate makefile.  (contrib.mak,
3648 
gnu/src/gnudevs.mak)
3649 
 
3650 
Adds pipe.dev to the BC++, MSVC++, and OS/2 (GCC/EMX) platforms.
3651 
(bcwin32.mak, dvx-gcc.mak, msvc32.mak, msvclib.mak)
3652 
 
3653 
</pre><h3><a name="5.86_Utilities"></a>Utilities</h3><pre>
3654 
 
3655 
Fixes problems: - The usage message for pdf2ps was incorrect.  (lib/pdf2ps,
3656 
	lib/pdf2ps.bat)
3657 
 
3658 
</pre><h3><a name="5.86_Drivers"></a>Drivers</h3><pre>
3659 
 
3660 
Removes all remaining uses of #define'd casts in connection with ENUM_PTRS
3661 
and RELOC_PTRS procedures.  (gdevpdf.c, gdevpdfo.c)
3662 
 
3663 
Adds a user-contributed driver for the Oki Data OkiPage 4w+ LED printer.
3664 
This is a GPL'ed driver.  (contrib.mak, gnu/src/gdevop4w.c)
3665 
 
3666 
</pre><h3><a name="5.86_Platforms"></a>Platforms</h3><pre>
3667 
 
3668 
Adds a %handle% IODevice (mshandle.dev) to recognize file names of the form
3669 
%handle%NNNNNNNN under MS Windows.  GSview uses this feature in place of
3670 
pipes, which are an open industry standard not supported by MS Windows.
3671 
(msvc32.mak, winlib.mak, gp_mshdl.c)
3672 
 
3673 
</pre><h3><a name="5.86_Fonts"></a>Fonts</h3><pre>
3674 
 
3675 
Adds the ISO 8859-2 encoding to the stock of built-in encodings.
3676 
(lib/gs_il2_e.ps, lib/gs_iso_e.ps => lib/gs_il1_e.ps)
3677 
 
3678 
</pre><h3><a name="5.86_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
3679 
 
3680 
Fixes problems:
3681 
	- Using a colored pattern with an uncolored Pattern color space
3682 
caused an error.  (lib/pdf_draw.ps)
3683 
	- Embedded CIDFontType 2 fonts didn't work, and embedded TrueType
3684 
fonts did an extra definefont.  (lib/gs_ttf.ps, lib/pdf_font.ps,
3685 
lib/pdf_ops.ps) ****** IN PROGRESS ******
3686 
 
3687 
</pre><h3><a name="5.86_Interpreter"></a>Interpreter</h3><pre>
3688 
 
3689 
Fixes problems:
3690 
	- Some files hadn't been updated for the removal of the gs_imemory
3691 
static.  (int.mak, gp_gnrdl.c, imain.c, ztrap.c)
3692 
	- %statementedit could append a spurious character if the last
3693 
character of the statement was not whitespace.  (bug probably introduced in
3694 
5.8x) (ziodev.c)
3695 
	- The show operators didn't properly handle the special case of
3696 
executing within a cshow procedure for a non-CID font.  (zchar.c)
3697 
	- cshow applied to a composite font didn't scale the current font
3698 
correctly (in fact, at all).  (zcfont.c)
3699 
	- If an error occurred within the procedure called by
3700 
resourceforall, it wasn't reported.  (lib/gs_res.ps)
3701 
	- flushfile and closefile didn't correctly handle filters that only
3702 
write a fixed amount of data.  (zfileio.c)
3703 
	- cshow didn't restore the font reliably after executing the
3704 
procedure.  (ichar.h, zcfont.c, zchar.c)
3705 
	- An execstackoverflow error might temporarily leave the execution
3706 
stack in an invalid state.  (interp.c)
3707 
 
3708 
Cleans up some macros.  (iname.c, isave.c, iscan.c)
3709 
 
3710 
Removes all remaining uses of #define'd casts in connection with ENUM_PTRS
3711 
and RELOC_PTRS procedures.  (icontext.c, iname.c, isave.c, iscan.c,
3712 
istack.c, zcontext.c, zfproc.c)
3713 
 
3714 
Adds a run-time warning message if gp_gnrdl.c is included in a non-GNU
3715 
build.  (gp_gnrdl.c)
3716 
 
3717 
Converts clients to use the gs_text procedures that replace the gs_show
3718 
procedures, and to use gs_text_enum_t rather than gs_show_enum as the
3719 
enumerator type.  (ichar.h, zbfont.c, zcfont.c, zchar.c, zchar1.c,
3720 
zchar32.c, zchar42.c, zcharout.c, zcharx.c, zfont.c, zfont0.c, zfont1.c,
3721 
zfont32.c, zimage.c, zimage2.c)
3722 
 
3723 
Updates the initialization code for the name change of gs_iso_e.ps.
3724 
(lib/gs_init.ps)
3725 
 
3726 
Splits off the definitions relating to name indices, in anticipation of
3727 
defining some name indices statically.  (inamedef.h, inameidx.h, iname.c)
3728 
 
3729 
</pre><h3><a name="5.86_Streams"></a>Streams</h3><pre>
3730 
 
3731 
Fixes problems:
3732 
	- The pixel-difference filters didn't initialize the previous sample
3733 
to 0 at the beginning of each row.  (spdiff.c)
3734 
	- The CCITTFaxDecode filter didn't correctly handle the case where
3735 
the last code of a row occurred less than 7 or 8 bits before the end of the
3736 
input stream.  (scf.h, shc.h, scfd.c)
3737 
	- Flushing filters didn't work.  (stream.c)
3738 
	- The DCTEncode filter gave an error if asked to write to a string
3739 
with less than 100 bytes of free space left when the end of the input data
3740 
was reached.  (sdct.h, sdcte.c)
3741 
 
3742 
Removes all remaining uses of #define'd casts in connection with ENUM_PTRS
3743 
and RELOC_PTRS procedures.  (stream.c)
3744 
 
3745 
Changes the ASCII85Encode stream to reliably insert a newline at least once
3746 
every 80 characters, rather than unreliably after at most 80 characters of
3747 
data.  (sfilter2.c)
3748 
 
3749 
Cleans up some formatting.  (stream.c)
3750 
 
3751 
</pre><h3><a name="5.86_Library"></a>Library</h3><pre>
3752 
 
3753 
Fixes problems:
3754 
	- A client wasn't updated for the change in the declaration of
3755 
gx_dht_proc.  (bug introduced in 5.84) (genht.c)
3756 
	- When rendering a 12-bit-per-sample color image, the device color
3757 
wasn't initialized, possibly causing a memory access error when comparing
3758 
the current color with the previous one.  (gxi12bit.c)
3759 
	- arch_floats_are_IEEE was incorrectly defined as
3760 
arch_floats_are_ieee.  (bug introduced in 5.83) (std.h)
3761 
	- Decoding of IEEE floats on non-IEEE systems was wrong.  (ibnum.c)
3762 
	- The fast case of masked images in Pattern color spaces didn't
3763 
work.  (bug introduced since 5.50) (gxifast.c)
3764 
	- cshow gave an error if there was no current point.  (gxchar.c)
3765 
 
3766 
Replaces TEXT_REPLACE_{X,Y}_WIDTHS with a single TEXT_REPLACE_WIDTHS.
3767 
(gstext.h, gstext.c)
3768 
 
3769 
Cleans up some macros.  (gdevddrw.c, gsfont.c, gsht1.c)
3770 
 
3771 
Removes all remaining uses of #define'd casts in connection with ENUM_PTRS
3772 
and RELOC_PTRS procedures.  (gdevddrw.c, gdevplnx.c, gsalloc.c, gschar.c,
3773 
gscolor.c, gscolor2.c, gscrd.c, gscsepr.c, gscspace.c, gsdevice.c, gsdsrc.c,
3774 
gsfcmap.c, gsfont.c, gsfont0.c, gsht1.c, gshtscr.c, gsimage.c, gspcolor.c,
3775 
gsptype1.c, gsstate.c, gstext.c, gxcmap.c, gxht.c, gxipixel.c, gxmclip.c,
3776 
gxtype1.c)
3777 
 
3778 
Adds gs_c_param_list_write_more, to switch a C parameter list back to write
3779 
mode without clearing it.  (gsparam.h, gscparam.c)
3780 
 
3781 
Adds gs_grestore_only, to do a grestore without requiring 2 entries on the
3782 
graphics state stack.  (gsstate.h, gsstate.c)
3783 
 
3784 
Completes a first bridge between the new driver text_begin procedure and the
3785 
existing text API defined in gschar.h.  The changes are backward-compatible
3786 
for both clients of the APIs and (the few) implementors of text_begin,
3787 
except that the font argument of text_begin is no longer const.  Note that
3788 
gschar.h is no longer used by any client, and in fact is deprecated.
3789 
(gschar.h, gstext.h, gxfcache.h, gxtext.h, gzstate.h, gdevbbox.c,
3790 
gdevnfwd.c, gschar.c, gsfont.c, gsfont0.c, gstext.c)
3791 
 
3792 
Mostly splits off the existing text procedures from the default
3793 
implementation of the new text facilities.  (lib.mak, gxchar.h, gschar.c,
3794 
gxchar.c)
3795 
 
3796 
Makes the structure descriptor for gs_state public, for testing in gxchar.c.
3797 
(gzstate.h, gsstate.c)
3798 
 
3799 
Adds is_width_only and current_width procedures to the text enumerator;
3800 
renames restart as retry, and adds a restart procedure for restarting with
3801 
different parameters.  (gstext.h, gxtext.h, gdevbbox.c, gschar.c, gstext.c,
3802 
gxchar.c)
3803 
 
3804 
Makes the masks for the subgroups of text operation parameters public.
3805 
(gstext.h)
3806 
 
3807 
Removes members of gs_show_enum that are superseded by members of
3808 
gs_text_enum_t: current_char, current_glyph, width, and log2_current_scale.
3809 
(gxchar.h, gxchar.c)
3810 
 
3811 
Adds aliases for popen and pclose under WIN32.  (pipe_.h)
3812 
 
3813 
Moves gs_incachedevice from gschar.h to gsstate.h.  (gschar.h, gsstate.h)
3814 
 
3815 
</pre>
3816 
 
3817 
<hr>
3818 
 
3819 
<h2><a name="Version5.85"></a>Version 5.85 (tester) (5/29/99)</h2>
3820 
 
3821 
<p>
3822 
This fileset removes a few more writable statics, and adds uniform support
3823 
for %filedevice%filename syntax in OutputFile.  Unfortunately, removing the
3824 
static that held the interpreter's allocator group was almost as much of an
3825 
upheaval as removing the statics for the interpreter stacks.
3826 
 
3827 
<h3><a name="5.85_Incompatible_changes"></a>Incompatible changes</h3><pre>
3828 
 
3829 
(Interpreter)
3830 
	- context_state_alloc now takes an additional parameter, as do
3831 
obj_cvp, make_packed_array, parse_real_file_name, ref_stack_store,
3832 
sread/write_proc, terminate_file_name, and a number of other internal
3833 
interpreter procedures.
3834 
	- scan_number now does not mark the result as new.
3835 
	- The _param_list_read/write procedures now take an additional
3836 
gs_ref_memory_t * parameter.
3837 
	- It is no longer possible to store pointers to the interpreter's
3838 
allocator group (gs_dual_memory_t) in structures or variables across a
3839 
garbage collection.
3840 
	- The save_level instance variable is moved from gs_dual_memory_t
3841 
to gs_ref_memory_t.
3842 
	- op_show_finish_setup can now fail.
3843 
	- fname.h is renamed gsfname.h; the procedure names and parameters
3844 
for %device%name file names are changed.
3845 
	- gx_imager_stroke_add now takes an additional argument; a NULL
3846 
value for the device argument of gx_stroke_path_only is no longer valid.
3847 
	- gx_make_clip_translate_device now takes a memory parameter, and no
3848 
container parameter; gx_make_clip_device no longer takes a container
3849 
parameter; gx_mask_clip_initialize and tile_clip_initialize now take a
3850 
memory parameter.
3851 
 
3852 
</pre><h3><a name="5.85_Documentation"></a>Documentation</h3><pre>
3853 
 
3854 
Fixes problems:
3855 
	- The language documentation still referred to outside clipping.
3856 
(doc/Language.htm)
3857 
 
3858 
Documents the new curve join graphics state parameter.  (doc/Language.htm)
3859 
 
3860 
Documents the fact that the OutputFile device parameter now supports the
3861 
%device%file syntax.  (gp.h, doc/Use.htm)
3862 
 
3863 
Documents the licensing problems related to GNU readline.  (int.mak,
3864 
unix-gcc.mak, gp_gnrdl.c)
3865 
 
3866 
</pre><h3><a name="5.85_Procedures"></a>Procedures</h3><pre>
3867 
 
3868 
Fixes problems:
3869 
	- The bmpa devices needed gdevppla.  (bug introduced in 5.84)
3870 
(devs.mak)
3871 
	- The bmpa devices were accidentally included in the DEVICE_DEVS
3872 
setting in the distributed fileset.  (unix-gcc.mak)
3873 
	- msvclib.mak was missing some definitions.  (msvclib.mak)
3874 
 
3875 
Adds a CC_NO_WARN macro for those few files that produce tons of warnings
3876 
that we can't work around.  (bcwin32.mak, dvx-gcc.mak, msvccmd.mak,
3877 
openvms.mak, openvms.mmk, os2.mak, ugcclib.mak, unix-gcc.mak, unixansi.mak,
3878 
unixtrad.mak, watcw32.mak, wccommon.mak, devs.mak, lib.mak, zlib.mak)
3879 
 
3880 
Adds version.mak to msvclib.mak, so library clients can track the version.
3881 
(msvclib.mak)
3882 
 
3883 
</pre><h3><a name="5.85_Utilities"></a>Utilities</h3><pre>
3884 
 
3885 
Fixes problems:
3886 
	- -replace didn't work if it was the last item of a module
3887 
description.  (genconf.c)
3888 
 
3889 
</pre><h3><a name="5.85_Drivers"></a>Drivers</h3><pre>
3890 
 
3891 
Fixes problems:
3892 
	- CCITTFax-compressed bitmaps sometimes used both a Rows value and
3893 
an end-of-block indicator, which some PostScript implementations don't
3894 
handle properly.  (gdevpsdf.h, gdevps.c, gdevpsdf.c)
3895 
 
3896 
Removes an unused procedure and macro.  (gdevlj56.c)
3897 
 
3898 
</pre><h3><a name="5.85_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
3899 
 
3900 
Fixes problems:
3901 
	- The interpreter cached objects even if the reference had the wrong
3902 
generation number, causing errors if a correct reference occurred later.
3903 
(lib/pdf_base.ps)
3904 
	- Embedded TrueType fonts using the Macintosh encoding sometimes
3905 
caused an error.  (lib/gs_ttf.ps)
3906 
 
3907 
</pre><h3><a name="5.85_Interpreter"></a>Interpreter</h3><pre>
3908 
 
3909 
Fixes problems:
3910 
	- Multiple contexts were broken (probably since 5.80).  Fixing this
3911 
required adding a parameter to context_state_alloc, to provide systemdict.
3912 
(icontext.h, icontext.c, interp.c)
3913 
	- setpagedevice didn't accept the 4-element PageSize values that
3914 
appear in the InputAttributes dictionary.  (zmedia2.c)
3915 
	- BuildChar/BuildGlyph was "short circuited" even in some cases
3916 
where it wasn't safe to do so.  (ichar.h, zchar.c, zcharout.c)
3917 
	- The show operators didn't properly handle the special case of
3918 
executing within a cshow procedure.  (ichar.h, zcfont.c, zchar.c, zcharx.c)
3919 
	- The -dDOINTERPOLATE switch had gotten broken somehow.
3920 
(lib/gs_init.ps)
3921 
	- The is_identity flag wasn't properly cleared when loading cached
3922 
CIE mapping values, causing incorrect output.  (zcie.c)
3923 
 
3924 
Removes the writable static for the context scheduler.  (zcontext.c)
3925 
 
3926 
Removes the writable static for the interpreter's group of allocators
3927 
(gs_imemory).  This too turned out to be a massive change with many
3928 
NON-BACKWARD-COMPATIBLE changes required in internal procedures.  (bfont.h,
3929 
files.h, fname.h, ialloc.h, ifunc.h, imemory.h, interp.h, iparam.h,
3930 
iparray.h, ipcolor.h, isave.h, iscannum.h, istack.h, istream.h, iutil.h,
3931 
store.h, ialloc.c, icontext.c, idebug.c, idict.c, iinit.c, imain.c,
3932 
imainarg.c, interp.c, iparam.c, ireclaim.c, isave.c, iscan.c, iscanbin.c,
3933 
iscannum.c, isstate.h, istack.c, iutil.c, zarray.c, zbfont.c, zcontext.c,
3934 
zdict.c, zfname.c, zdps.c, zdps1.c, zfcmap.c, zdict.c, zfile.c, zfilter.c,
3935 
zfont.c, zfont0.c, zfproc.c, zfreuse.c, zfunc.c, zfunc0.c, zfunc3.c,
3936 
zgeneric.c, zht2.c, ziodev.c, ziodev2.c, zpacked.c, zpcolor.c, zshade.c,
3937 
zupath.c, zvmem.c)
3938 
 
3939 
Adds a gs_memory_t * argument to obj_cvp.  This is part of the work for
3940 
removing the gs_imemory static: we note it separately because it affects
3941 
code beyond the interpreter.  (iutil.h, gp_gnrdl.c, iutil.c, zfileio.c)
3942 
 
3943 
Updates interpreter code for the addition of new_mask, test_mask, and
3944 
save_level to gs_ref_memory_t, and the removal of save_level from
3945 
gs_dual_memory_t.  (ialloc.h, ialloc.c, isave.c)
3946 
 
3947 
Adds a gs_ref_memory_t * argument to all the _param_list_read/write
3948 
procedures.  (iparam.h, iparam.c, zcrd.c, zdevice.c, zfdctd.c, zfdcte.c,
3949 
zfdecode.c, zfilter2.c, ziodev2.c, zusparam.c)
3950 
 
3951 
Changes the hack in file_alloc_stream that determines whether a gs_memory_t
3952 
* is actually a gs_ref_memory_t *.  The former code tested specifically
3953 
whether the allocator was one of the current interpreter allocators; the new
3954 
code simply tests the procedure vector.  We aren't 100% sure that this
3955 
change will work reliably.  (zfile.c)
3956 
 
3957 
Factors common code out of isave.h and store.h.  (idosave.h, isave.h,
3958 
store.h)
3959 
 
3960 
Removes the reclaim_data member of gs_dual_memory_t, since it is no longer
3961 
useful.  (imemory.h, ialloc.c, ireclaim.c)
3962 
 
3963 
Makes the default InputAttributes and OutputAttributes elements of page
3964 
device dictionaries writable and (if possible) allocated in local VM, to
3965 
work around bugs in the output of Word Perfect.  (lib/gs_setpd.ps)
3966 
 
3967 
Modifies the interpreter's error printout to indicate whether dictionaries
3968 
on the stack(s) are writable.  (lib/gs_init.ps)
3969 
 
3970 
Moves support for %device%name file naming into the library.  (fname.h,
3971 
zfile.c, zfname.c [deleted])
3972 
 
3973 
Adds interpreter support for the new curve join graphics state parameter.
3974 
(zgstate.c)
3975 
 
3976 
</pre><h3><a name="5.85_Library"></a>Library</h3><pre>
3977 
 
3978 
Fixes problems:
3979 
	- bbox_fill_path device didn't interact with compositors correctly.
3980 
(This problem had no practical effect.)  (gdevbbox.c)
3981 
	- kshow didn't check for CID fonts.  (gschar.c)
3982 
	- The bbox and ImageType 3 image enumerators had incorrect GC
3983 
descriptors, possibly causing memory-related crashes.  (gsstruct.h,
3984 
gdevbbox.c, gximage3.c)
3985 
	- gx_make_clip_[translate_]device took an obsolete container
3986 
parameter.  (gxcpath.h, gsshade.c, gxccache.c, gxfill.c, gxstroke.c)
3987 
	- Non-transient clipping devices were used for image clipping, but
3988 
the API didn't support creating them.  (gxcpath.h, gxclip.c, gximage3.c,
3989 
gxipixel.c)
3990 
	- Some devices were created without setting their memory member,
3991 
which caused the GC not to trace pointers to them.  (gxmclip.h, gxclip2.h,
3992 
gxclip2.c, gximage3.c, gxmclip.c, gxp1fill.c)
3993 
	- The bbox device didn't handle ImageType 3 images correctly.
3994 
(gdevbbox.c)
3995 
	- When the bbox device passed a stroke operation to the library, it
3996 
didn't pass the device, causing absolute-length dots to render incorrectly.
3997 
Fixing this required adding a device parameter to the gx_imager_stroke_add
3998 
procedure.  (gxpaint.h, gdevbbox.c, gxpaint.c)
3999 
	- The counter control OtherSubrs (12 and 13) weren't implemented.
4000 
(This probably had no effect.)  (gstype1.c)
4001 
	- Type 1 stem hints with negative widths didn't work properly.
4002 
(gxhint2.c)
4003 
	- The debugging output for hintmask and cntrmask printed the vstem
4004 
and hstem counts in the wrong order.  (gstype2.c)
4005 
	- If the value of the OutputFile device parameter was too long,
4006 
the result could be memory corruption rather than a rangecheck error.
4007 
(gsdevice.c)
4008 
	- The dash pattern pointer in the saved imager state of a band list
4009 
writer could point inside the writer structure, confusing the garbage
4010 
collector.  (gxclist.h, gxclpath.c)
4011 
 
4012 
Adds new_mask, test_mask, and save_level instance variables to
4013 
gs_ref_memory_t.  This too is part of the gs_imemory work: we note it
4014 
separately because it is the only piece of this work that affects the
4015 
library.  (gxalloc.h, gsalloc.c)
4016 
 
4017 
Makes cntrmask at the beginning of a charstring act like vstemhm + cntrmask,
4018 
as with hintmask.  This is not documented, but we see it used this way in
4019 
Type 2 CharStrings.  (gstype2.c)
4020 
 
4021 
Cleans up formatting and macros.  (gp.h)
4022 
 
4023 
Speeds up the bounding box device by skipping path filling if the entire
4024 
path falls within the already-accumulated bounding box, and by defining the
4025 
device as 8-bit gray to avoid halftone computation.  (gdevbbox.c)
4026 
 
4027 
Adds a procedure, gs_show_use_glyph, for implementing the show-in-cshow
4028 
hack.  (gschar.h, gschar.c)
4029 
 
4030 
Moves support for %device%file file naming into the library.  (lib.mak,
4031 
gsfname.h, gxiodev.h, gdevpipe.c, gsfname.c)
4032 
 
4033 
Makes the OutputFile device parameter recognize %device%file syntax, as well
4034 
as "-" and (on platforms that support pipes) |command.  (gp.h, gxdevice.h,
4035 
gdevprn.c, gsdevice.c, gp_unix.c)
4036 
 
4037 
Adds a separate graphics state parameter to indicate how to treat joins
4038 
between segments of a flattened curve, for compatibility with Adobe
4039 
interpreters (which apparently always use bevel joins).  (gsline.h,
4040 
gxclpath.h, gxline.h, gsline.c, gsstate.c, gxclpath.c, gxclrast.c,
4041 
gxstroke.c)
4042 
 
4043 
Changes code slightly, introducing an unnecessary assignment, in order to
4044 
suppress a compiler warning.  (gxclpath.c)
4045 
 
4046 
Tweaks the CIE_LOAD_CACHE_BODY macro slightly.  (gscie.c)
4047 
 
4048 
</pre>
4049 
 
4050 
<hr>
4051 
 
4052 
<h2><a name="Version5.84"></a>Version 5.84 (tester) (5/19/99)</h2>
4053 
 
4054 
<p>
4055 
This fileset completes the implementation of planar rendering, and fixes a
4056 
few more bugs, some of them surprisingly old.
4057 
 
4058 
<h3><a name="5.84_Incompatible_changes"></a>Incompatible changes</h3><pre>
4059 
 
4060 
(Drivers)
4061 
	- The dopath vector device implementation procedure was changed to
4062 
take an optional matrix argument.
4063 
(Library)
4064 
	- The internal memory__need_ macros are changed to upper case.
4065 
 
4066 
</pre><h3><a name="5.84_Procedures"></a>Procedures</h3><pre>
4067 
 
4068 
Fixes problems:
4069 
	- There was a duplicate entry for GENINIT_XE in the Watcom makefile.
4070 
(wctail.mak)
4071 
 
4072 
Adds the duplex-capable LaserJet drivers (ljet3d and ljet4d) to all standard
4073 
configurations.  (bcwin32.mak, dvx-gcc.mak, msvc32.mak, openvms.mak,
4074 
openvms.mmk, os2.mak, unix-gcc.mak, unixansi.mak, unixtrad.mak, watc.mak,
4075 
watcw32.mak)
4076 
 
4077 
Adds a PROFILE compilation switch, similar to DEBUG, to work around the fact
4078 
that gprof under Linux doesn't count time in memset, memcpy, or other C
4079 
library procedures.  PROFILE will substitute our own versions of memset,
4080 
memcpy, and memmove.  Currently, this switch is supported only on Unix.
4081 
(unix-end.mak)
4082 
 
4083 
Defines a new makefile macro, SYNC, that gives the module name for thread /
4084 
synchronization facilities; makes async.dev include this module.  This is
4085 
posync on Unix and VMS platforms, winsync on MS Windows and OS/2 platforms.
4086 
(bcwin32.mak, dvx-gcc.mak, lib.mak, msvc32.mak, msvclib.mak, openvms.mak,
4087 
openvms.mmk, os2.mak, ugcclib.mak, unix-gcc.mak, unixansi.mak, unixtrad.mak,
4088 
watc.mak, watclib.mak, watcw32.mak)
4089 
 
4090 
Splits off the rules common to the 3 Windows makefiles (watc, watclib,
4091 
winlib) into a separate file, defining new modules winplat.dev and
4092 
winsync.dev.  (watc.mak, watclib.mak, winlib.mak, winplat.mak)
4093 
 
4094 
Removes -Wcast-align from the gcc switches, since this produces huge numbers
4095 
of warnings that we will certainly never get rid of.  (unix-gcc.mak)
4096 
 
4097 
</pre><h3><a name="5.84_Utilities"></a>Utilities</h3><pre>
4098 
 
4099 
Enhances the ps2pdf script with a patch contributed by Jim Avera
4100 
(avera@fjst.com) so that it can be used as a pipe by specifying "-" for the
4101 
input and/or output file.  (lib/ps2pdf)
4102 
 
4103 
Modifies ps2ascii to handle landscape pages better.  (lib/ps2ascii.ps)
4104 
 
4105 
</pre><h3><a name="5.84_Drivers"></a>Drivers</h3><pre>
4106 
 
4107 
Fixes problems:
4108 
	- PDF output that used Pattern colors on more than one page failed
4109 
to include the color space resource in the resource dictionaries of pages
4110 
other than the first.  (gdevpdf.c)
4111 
	- The PDF writer emitted bitmap patterns inverted in Y.
4112 
(gdevpdfi.c)
4113 
	- The PCL XL driver's GC descriptor had become incorrect, causing
4114 
crashes.  (gdevpx.c)
4115 
	- The pdfwrite driver could still emit coordinates too large for
4116 
Acrobat Reader to handle, for stroked lines with an unusual CTM.
4117 
(gdevpdfd.c)
4118 
	- The pxl drivers emitted invalid output for dashed lines.
4119 
(gdevpx.c)
4120 
	- The [e]pswrite and pxl drivers scaled line widths and dash
4121 
patterns incorrectly.  Fixing this properly involved refactoring the
4122 
handling of scaling for paths, and removing gdev_vector_stroke_path.
4123 
(gdevpsdf.h, gdevvec.h, gdevpdfd.c, gdevps.c, gdevpsdf.c, gdevpx.c,
4124 
gdevvec.c)
4125 
	- The lj5 drivers didn't pad images to a multiple of 4 bytes per
4126 
scan line, producing invalid PCL XL output.  (We don't see how they could
4127 
ever have worked, in fact.)  (gdevpcl.h, gdevlj56.c, gdevpcl.c)
4128 
 
4129 
Adds a user-contributed driver for the DEClaser 2100.  This is a GPL'ed
4130 
driver.  (contrib.mak, gnu/src/gdevln03.c)
4131 
 
4132 
Makes the UsePlanarBuffer parameter, and planar buffering capability, from
4133 
the PPM devices available to general printer devices, but in a separate
4134 
module to avoid making all printer devices require gdevmpla.c.  (gdevppla.h,
4135 
gdevpbm.c, gdevppla.c)
4136 
 
4137 
Adds a UsePlanarBuffer parameter to the async BMP drivers, for testing.
4138 
(gdevbmpa.c)
4139 
 
4140 
Removes the comment about the instability of the "vector" driver interface.
4141 
(gdevvec.h, gdevvec.c)
4142 
 
4143 
</pre><h3><a name="5.84_Platforms"></a>Platforms</h3><pre>
4144 
 
4145 
Splits off the Windows thread and synchronization primitives into a new file
4146 
and a new module, winsync.dev.  (watc.mak, watclib.mak, winlib.mak,
4147 
gp_win32.c, gp_wsync.c)
4148 
 
4149 
</pre><h3><a name="5.84_Interpreter"></a>Interpreter</h3><pre>
4150 
 
4151 
Fixes problems:
4152 
	- As usual, gcc failed to flag some signed/unsigned char mismatches.
4153 
(gp_gnrdl.c, iutil.c)
4154 
 
4155 
Moves the indexed color space cache lookup procedure from the interpreter to
4156 
the library.  (zcsindex.c)
4157 
 
4158 
</pre><h3><a name="5.84_Streams"></a>Streams</h3><pre>
4159 
 
4160 
Fixes problems:
4161 
	- If a 2-D CCITTFax stream ended with 1 or 2 "vertical 0" codes,
4162 
those codes would be ignored.  (scfd.c)
4163 
 
4164 
</pre><h3><a name="5.84_Library"></a>Library</h3><pre>
4165 
 
4166 
Fixes problems:
4167 
	- gsnogc.h contained an extern for gs_gc_reclaim rather than for
4168 
gs_nogc_reclaim.  (gsnogc.h)
4169 
	- Banded images in Indexed color spaces rendered incorrectly.
4170 
(gximage.c)
4171 
	- A function declared some arguments as float rather than floatp.
4172 
(gshtx.h, gshtx.c)
4173 
	- As usual, gcc failed to flag some public/private mismatches.
4174 
(gdevmrun.c)
4175 
	- The tracing output for monobit images printed 8 bits per pixel
4176 
rather than 1 bit per pixel.  (gxidata.c)
4177 
	- A Pn macro was used in a header file that didn't include stdpre.h.
4178 
(gscdefs.h, gconf.c, genht.c, gxhtbit.c, gxclrast.c)
4179 
	- get_bits_rectangle for the planar memory device didn't flush the
4180 
last byte of each row.  (gdevmpla.c)
4181 
	- When banding, Indexed color spaces using a procedure rather than a
4182 
lookup table caused a crash.  (gxcolor2.h, gscolor2.c, gxclrast.c)
4183 
	- When filling a region with a Pattern with a rotated matrix, some
4184 
parts of the region could be missed.  (bug introduced by a fix in 5.38)
4185 
(gxp1fill.c)
4186 
 
4187 
When compiling with gcc, replaces inline with __inline__ to get rid of a
4188 
potential warning.  (stdpre.h)
4189 
 
4190 
Adds our own implementations of memset, memcpy, and memmove, to work around
4191 
the fact that gprof under Linux doesn't count time in C library procedures.
4192 
(memory_.h, string_.h, gsmisc.c)
4193 
 
4194 
Finishes implementing planar rendering for printer / banded devices.
4195 
(gdevprn.h, gxclist.h, gxdevbuf.h, gdevprn.c, gxclread.c)
4196 
 
4197 
</pre>
4198 
 
4199 
<hr>
4200 
 
4201 
<h2><a name="Version5.83"></a>Version 5.83 (tester) (5/13/99)</h2>
4202 
 
4203 
<p>
4204 
This fileset was driven mostly by commercial licensee demands; it doesn't
4205 
fix most of the problems reported in 5.82.  It features smaller threshold
4206 
halftones, the ability to store halftones in ROM, and a nearly complete
4207 
implementation of a planar memory device.
4208 
 
4209 
<p>
4210 
Items pushed off to the next fileset:
4211 
<ul>
4212 
<li>	- Finish multi-planar band buffers (requires changing
4213 
gdev_prn_render_lines to be based on memory devices rather than buffer
4214 
pointers).
4215 
<li>	- For Adobe compatibility, change stroking so that it always
4216 
uses
4217 
bevel joins between the segments of a curve (this directly contradicts the
4218 
Red Book, but it's what Adobe interpreters do).
4219 
<li>	- Implement an IdiomSet for Corel Draw fountain fills?
4220 
(idioms.ps)
4221 
<li>	- Change shading so it doesn't install a clip device (make this
4222 
a
4223 
driver procedure instead), because that prevents clist_fill_path from being
4224 
called.
4225 
</ul>
4226 
 
4227 
<h3><a name="5.83_Incompatible_changes"></a>Incompatible changes</h3><pre>
4228 
 
4229 
(Interpreter)
4230 
	- The spaces.indexed member of a vm_spaces structure has been
4231 
renamed spaces_indexed (a macro).
4232 
	- The gs_reclaim procedure is changed to a macro, GS_RECLAIM.
4233 
(Library)
4234 
	- The bits member of a halftone order is now called bit_data, and is
4235 
opaque; halftone orders are now "objects"; gx_ht_alloc_[ht_]order now take
4236 
an additional argument.
4237 
	- The architectural values in arch.h are now all upper-case.
4238 
(std.h defines lower-case synonyms for backward compatibility.)
4239 
	- The buffer device procedures for printer devices are now collected
4240 
in a structure; this also changes the parameters of clist_init_params.
4241 
	- The parameters of the buffered device setup_buf_device procedure
4242 
are changed.
4243 
	- gx_path_copy_reducing now takes an additional argument, an imager
4244 
state, for flattening stroked paths.
4245 
	- Memory devices now must be created by copying a prototype device,
4246 
rather than by initializing individual members, even if they are only being
4247 
used for limited purposes.
4248 
 
4249 
</pre><h3><a name="5.83_Documentation"></a>Documentation</h3><pre>
4250 
 
4251 
Documents the new facility for compiled halftones, and the old one for
4252 
compiling initialization files.  (doc/Make.htm)
4253 
 
4254 
</pre><h3><a name="5.83_Utilities"></a>Utilities</h3><pre>
4255 
 
4256 
Adds a utility for compiling halftones into the executable.  Also defines
4257 
the dependency lists for the auxiliary programs in lib.mak and int.mak,
4258 
rather than replicating them for every platform.  (bcwin32.mak,
4259 
dvx-tail.mak, gs.mak, int.mak, lib.mak, msvctail.mak, openvms.mak,
4260 
openvms.mmk, os2.mak, unix-aux.mak, wctail.mak, genht.c)
4261 
 
4262 
Adds support for halftone "resources" in the makefile.  (genconf.c)
4263 
 
4264 
Adds code to determine the primary and secondary CPU cache sizes
4265 
empirically.  (genarch.c)
4266 
 
4267 
Changes the architecture definition macros from lower to upper case, with
4268 
lower-case synonyms in std.h for backward compatibility.  (gsjconf.h, std.h,
4269 
genarch.c)
4270 
 
4271 
Changes the ps2ai utility so that jtxt3 can be set from the command line, to
4272 
allow pstoedit to generate AI3-compatible output.  (lib/ps2ai.ps)
4273 
 
4274 
</pre><h3><a name="5.83_Procedures"></a>Procedures</h3><pre>
4275 
 
4276 
Adds some optional library modules to the base library compilation list, so
4277 
that compilation errors won't slip through.  (lib.mak)
4278 
 
4279 
</pre><h3><a name="5.83_Interpreter"></a>Interpreter</h3><pre>
4280 
 
4281 
Fixes problems:
4282 
	- A change from char to byte needed to be undone (gcc didn't catch
4283 
this).  (iutil.c)
4284 
 
4285 
Adds a 167x167 stochastic halftone that CalComp put in the public domain.
4286 
(lib/ht_ccbnm.ps, int.mak, unixinst.mak)
4287 
 
4288 
Updates the interpreter for the change to per-VM-spaces garbage collection.
4289 
(igc.h, ialloc.c, icontext.c, igc.c, ilocate.c, imain.c, interp.c,
4290 
ireclaim.c, isave.c, zfile.c, zht.c, zht1.c, zht2.c)
4291 
 
4292 
Updates places that only use gsstruct.h for extern_st to use gsstype.h
4293 
instead.  (icontext.h, ifont.h)
4294 
 
4295 
</pre><h3><a name="5.83_Library"></a>Library</h3><pre>
4296 
 
4297 
Fixes problems:
4298 
	- Some types needed updating to reflect the change in the string
4299 
freelists.  (gsalloc.c, gsnogc.c)
4300 
	- clip_copy_color didn't initialize some variables in the fastest
4301 
case. (bug probably introduced in 5.83) (gxclip.c)
4302 
	- The fit_fill_ and fit_copy_ macros didn't always parenthesize
4303 
their dev argument.  (gxdevice.h)
4304 
	- The sample_load macros returned the wrong results for depth 1 and
4305 
2.  Amazingly enough, it appears that this case had never been used.
4306 
(gsbitops.h)
4307 
	- The standard allocator would free chunks even if is_controlled was
4308 
true.  (gsalloc.c)
4309 
	- Stroking drew semicircles rather than full circles for round
4310 
joins.  (gxstroke.c)
4311 
	- The calculation of how finely to sample a curve to achieve a
4312 
particular flatness didn't take line width into account when stroking (the
4313 
flatness has to apply to the outside of the stroked curve).  (gxpath.h,
4314 
gxpcopy.c, gxstroke.c)
4315 
 
4316 
Speeds up the bbox device a little.  (gdevbbox.c)
4317 
 
4318 
Speeds up the most common cases of clipping a little.  (gxclip.h,
4319 
gxacpath.c, gxclip.c)
4320 
 
4321 
Makes halftone orders more "object-oriented", so we can use an alternate
4322 
representation that trades time for space.  This requires a
4323 
NON-BACKWARD-COMPATIBLE CHANGE in the gx_ht_order structure and the
4324 
arguments of gx_ht_alloc_[ht_]order.  (gxcldev.h, gxdht.h, gzht.h, gsht.c,
4325 
gsht1.c, gshtscr.c, gshtx.c, gsistate.c, gxcht.c, gxclimag.c, gxclrast.c,
4326 
gxht.c, gxhtbit.c)
4327 
 
4328 
Makes it possible to compile-in halftone threshold arrays and orders (e.g.,
4329 
in ROM) so they don't take up RAM at execution time.  (gscdefs.h, gxdht.h,
4330 
gxdhtres.h, gzht.h, gconf.c, gsht.c, gsht1.c, gxclrast.c, gxhtbit.c)
4331 
 
4332 
Adds some statistics to the 24-bit memory device (in DEBUG mode only, as
4333 
usual).  (gdevm24.c)
4334 
 
4335 
Makes the 24-bit memory device optionally use memcpy for wide rectangle
4336 
fills.  We thought this got us a factor of 3 speedup on a Pentium with gcc's
4337 
library, but it turned out to be a profiler artifact.  (gdevm24.c)
4338 
 
4339 
Cleans up some formatting.  (gxclip.h)
4340 
 
4341 
Dusts off the run-length-encoded memory device, changing it so it reverts to
4342 
the unencoded representation when necessary.  This code hasn't been tested,
4343 
and is not currently used.  (gdevmrun.h, gdevrun.c [deleted], gdevmrun.c)
4344 
 
4345 
Adds more statistics to the clipping device.  (gxclip.c)
4346 
 
4347 
Adds an implementation of the MD5 Algorithm defined in RFC 1321, derived
4348 
directly from the text of the RFC and not from the reference implementation.
4349 
This code uses the zlib license, which is more liberal than the Aladdin or
4350 
GNU licenses.  (md5.h, md5.c)
4351 
 
4352 
Finishes implementing the planar memory device, including generalizing it to
4353 
store varying numbers of bits per plane rather than 1 bit per plane.
4354 
(gdevmem.h, gdevmpla.h, gxdevmem.h, gdevmem.c, gdevmpla.c)
4355 
 
4356 
Updates clients to initialize memory devices more fully, now required to
4357 
distinguish chunky from planar devices.  (gxpcmap.c)
4358 
 
4359 
Mostly implements enhancing printer / banded devices so they can use a
4360 
planar memory device for rendering and/or band buffering.  The code
4361 
currently works only in the non-banded case.  (gdevprn.h, gxclist.h,
4362 
gxdevbuf.h, gxdevcli.h, gdevprn.c, gxclist.c, gxclread.c)
4363 
 
4364 
For testing, adds a -dUsePlanarBuffer=&lt;boolean&gt; parameter to the PPM devices
4365 
to make them use a planar memory device.  (gdevpbm.c)
4366 
 
4367 
Cleans up some code formatting.  (gdevmem.c)
4368 
 
4369 
Makes the garbage collection procedure separately settable for each group of
4370 
VM spaces.  (In an environment with "async" rendering, the renderer has its
4371 
owm VM space group.)  Unfortunately, this involved a NON-BACKWARD-COMPATIBLE
4372 
change in the vm_spaces structure.  (gsgc.h, gsnogc.h, gsnogc.c)
4373 
 
4374 
Updates a client for the change in gs_reclaim; also makes the renderer
4375 
thread use the non-tracing garbage collector.  (gdevprna.c)
4376 
 
4377 
Updates the non-tracing GC to reflect its role as a garbage collection
4378 
procedure in a vm_spaces.  (gsnogc.c)
4379 
 
4380 
Enhances the non-tracing GC so that if a chunk ever contains no strings, the
4381 
string marking area reserved for the tracing GC is added to free space.
4382 
(gxalloc.h, gsalloc.c, gsnogc.c)
4383 
 
4384 
Changes the font cache allocator to use a different structure descriptor for
4385 
its data so that memory dumps will show "font cache bytes" rather than just
4386 
"bytes".  (gxccman.c)
4387 
 
4388 
Splits gsstruct.h into gsstype.h, which contains enough of the definition of
4389 
structure type descriptors to support extern_st, and gsstruct.h, which is
4390 
needed to actually define structure types.  (gsstruct.h, gsstype.h,
4391 
gxfmap.h)
4392 
 
4393 
Updates places that only use gsstruct.h for extern_st to use gsstype.h
4394 
instead.  (gsbitmap.h, gsccolor.h, gscie.h, gxfont.h, gzpath.h, scommon.h,
4395 
gscdevn.c, gscrd.c, gscrdp.c, gsshade.c, gxpath2.c)
4396 
 
4397 
</pre>
4398 
 
4399 
<hr>
4400 
 
4401 
<h2><a name="Version5.82"></a>Version 5.82 (tester) (4/24/99)</h2>
4402 
 
4403 
<p>
4404 
This fileset fixes a few odds and ends, removes a couple more writable
4405 
statics, and improves performance in a couple of areas.
4406 
 
4407 
<h3><a name="5.82_Incompatible_changes"></a>Incompatible changes</h3><pre>
4408 
 
4409 
(Interpreter)
4410 
	- dict_uid_param now takes an additional argument, the interpreter
4411 
context pointer.
4412 
	- obj_cvp now takes a stream rather than a string.
4413 
 
4414 
</pre><h3><a name="5.82_Documentation"></a>Documentation</h3><pre>
4415 
 
4416 
Documents the -dGraphicsAlphaBits and -dTextAlphaBits switches; reorganizes
4417 
the documentation of the -d/-s switches by function.  (doc/Use.htm)
4418 
 
4419 
</pre><h3><a name="5.82_Procedures"></a>Procedures</h3><pre>
4420 
 
4421 
Fixes problems:
4422 
	- Building with MSVC didn't work if COMPILE_INITS was selected.
4423 
(msvctail.mak)
4424 
	- The cp script didn't work on all MS-DOS systems, since the systems
4425 
are incompatible with each other in undocumented ways.  (cp.bat)
4426 
	- Using ^ in a command line failed on Windows 98.  (wccommon.mak)
4427 
	- Watcom compilation under Windows NT didn't include some needed
4428 
headers.  (wccommon.mak)
4429 
	- The Watcom compiler's quoting requirements were inconsistent.
4430 
(gs.mak)
4431 
	- GLCCWIN was used without being defined.  The MS DOS/Windows
4432 
makefiles really are a tangled mess....  (watc.mak)
4433 
	- The build directories didn't get created automatically when
4434 
compiling with the Watcom compiler.  (watc.mak)
4435 
 
4436 
Adds more optimization switches for Watcom compilation.  (wccommon.mak)
4437 
 
4438 
</pre><h3><a name="5.82_Utilities"></a>Utilities</h3><pre>
4439 
 
4440 
Adds a pfbtopfa script.  (unixinst.mak, lib/pfbtopfa, lib/pfbtopfa.bat,
4441 
lib/pfbtopfa.ps)
4442 
 
4443 
</pre><h3><a name="5.82_Drivers"></a>Drivers</h3><pre>
4444 
 
4445 
Fixes problems:
4446 
	- "Vector" drivers (currently only the PCL XL driver) filled
4447 
polygons incorrectly.  (gdevvec.c)
4448 
	- The PCL XL drivers produced incorrect output for images.  (We
4449 
can't understand how they ever could have worked.)  (gdevpx.c)
4450 
	- The PCL XL drivers skipped blank pages.  (gdevpx.c)
4451 
	- The page origin for the clj driver was set incorrectly.  (fix from
4452 
Artifex) (gdevclj.c)
4453 
	- The map_color_rgb procedure for the 32-bit CMYK bmp device was
4454 
wrong, causing RasterOps to produce incorrect output.  (fix from Artifex)
4455 
(gdevbmp.c)
4456 
 
4457 
Works around a bug in Acrobat Reader's Print command, by changing the
4458 
scaling for bitmap patterns.  (gdevpdfi.c)
4459 
 
4460 
Cleans up some formatting and macros.  (gdevpx.c)
4461 
 
4462 
Factors out some common parameter-putting utilities.  (gdevpsdf.h,
4463 
gdevpdfp.c, gdevpsdp.c)
4464 
 
4465 
</pre><h3><a name="5.82_Platforms"></a>Platforms</h3><pre>
4466 
 
4467 
Fixes problems:
4468 
	- The DLL code "knew" it could only be compiled on Windows and OS/2
4469 
platforms.  (gsdll.c)
4470 
 
4471 
Removes a Mac-specific file that is now moved to the Mac-specific archive.
4472 
(gsdllmac.h [deleted])
4473 
 
4474 
</pre><h3><a name="5.82_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
4475 
 
4476 
Fixes problems:
4477 
	- An invalidaccess could occur when repositioning the file after
4478 
executing an image XObject.  (lib/pdf_draw.ps)
4479 
	- Indexed color spaces gave an error if the underlying space was
4480 
represented as a name rather than an array.  (bug introduced in 5.80)
4481 
(lib/pdf_draw.ps)
4482 
 
4483 
</pre><h3><a name="5.82_Interpreter"></a>Interpreter</h3><pre>
4484 
 
4485 
Fixes problems:
4486 
	- The interpreter reentrancy changes broke the GNU readline
4487 
interface.  (gp_gnrdl.c, ziodev.c)
4488 
	- The TrappingType resource category wasn't defined.
4489 
(lib/gs_res.ps, lib/gs_trap.ps)
4490 
	- CIE color spaces in shading patterns didn't work.  (lib/gs_ll3.ps)
4491 
	- Printing a string of more than 200 characters with == was broken.
4492 
Fixing this required a NON-BACKWARD-COMPATIBLE change in the argument list
4493 
of obj_cvp.  (bug introduced in 5.80) (iutil.h, gp_gnrdl.c, idebug.c,
4494 
iutil.c, zfileio.c)
4495 
 
4496 
Changes the interpreter trace output to be somewhat more readable.
4497 
(interp.c)
4498 
 
4499 
Makes the linking of the binary token scanning procedure static rather than
4500 
dynamic.  (int.mak, inobtokn.c, iscan.c, zbseq.c)
4501 
 
4502 
Makes the language level a property of the context, eliminating a writable
4503 
static.  (icstate.h, idparam.h, ilevel.h, icontext.c, idparam.c, iinit.c,
4504 
interp.c, zcontext.c, zmisc2.c)
4505 
 
4506 
Updates clients for the change in dict_uid_param.  (zbfont.c, zfcmap.c,
4507 
zpcolor.c, zshade.c)
4508 
 
4509 
</pre><h3><a name="5.82_Library"></a>Library</h3><pre>
4510 
 
4511 
Fixes problems:
4512 
	- There was a signed/unsigned char * mismatch.  (sfxfd.c)
4513 
	- Some very picky compilers complained inappropriately about a
4514 
const/non-const mismatch.  (gxcht.c)
4515 
	- The format of the string freelists didn't allow chunks with more
4516 
than 64K bytes of string area.  (gxalloc.h, gsnogc.c)
4517 
 
4518 
Moves the interface definitions for the memory dump debugging code into a
4519 
header file.  (gxalloc.h, gsalloc.c)
4520 
 
4521 
Makes the standard memory manager recognize more effectively when it can
4522 
reset the high-water mark for occupied space in the current chunk.  This
4523 
turns out to make a big difference in preventing sandbars.  (gxalloc.h,
4524 
gsalloc.c)
4525 
 
4526 
Makes clipping lists keep track of their minimum and maximum X values, so
4527 
that they can return accurate outer clipping boxes, which in turn allows
4528 
more effective pre-clipping of filled regions.  (gxcpath.h, gxacpath.c,
4529 
gxclip.c, gxcpath.c)
4530 
 
4531 
Makes clipping devices cache their clipping box, so they can return it
4532 
quickly.  (gxcpath.h, gxclip.c)
4533 
 
4534 
Makes the colored halftone logic check bounding boxes before running the
4535 
expensive algorithms.  This improves performance dramatically for some files
4536 
without costing much for the rest.  (gxcht.c)
4537 
 
4538 
Adds some more debugging printout for clipping lists.  (gxcpath.c)
4539 
 
4540 
Cleans up formatting and macros.  (gdevdflt.c, gdevhit.c, gdevnfwd.c)
4541 
 
4542 
Factors out some common parameter-putting utilities.  (gsparamx.h,
4543 
gsparamx.c, gstrap.c)
4544 
 
4545 
Adds some more tracing output for images.  (gxidata.c)
4546 
 
4547 
</pre>
4548 
 
4549 
<hr>
4550 
 
4551 
<h2><a name="Version5.81"></a>Version 5.81 (tester) (4/14/99)</h2>
4552 
 
4553 
<p>
4554 
This fileset cleans up most of the bug tail from 5.80, but it doesn't fix
4555 
all the reported problems.  It also factors out the platform-specific DLL
4556 
calls, and extends the DLL API to the Mac.
4557 
 
4558 
<h3><a name="5.81_Incompatible_changes"></a>Incompatible changes</h3><pre>
4559 
 
4560 
(Platforms)
4561 
	- gsdll_get_bitmap is now defined in gsdllos2.h; gsdll_copy_dib,
4562 
_copy_palette, _draw, and _get_bitmap_row are now defined in gsdllwin.h.
4563 
 
4564 
(Interpreter)
4565 
	- zcolor_remap_one may return 0 rather than o_push_estack.  (This
4566 
change actually occurred in 5.80, but was not documented.)
4567 
 
4568 
(Library)
4569 
	- The initialized parameters of an image scaling filter are now
4570 
stored in a subsidiary structure.
4571 
	- The names max_support and log2_max_support are changed to
4572 
MAX_ISCALE_SUPPORT and LOG2_MAX_ISCALE_SUPPORT.
4573 
	- The structure definition for the smoothed image scaling filter is
4574 
now private, although its descriptor remains public.
4575 
	- The criteria for when to use Interpolate are now more stringent.
4576 
 
4577 
</pre><h3><a name="5.81_Procedures"></a>Procedures</h3><pre>
4578 
 
4579 
Fixes problems:
4580 
	- gs_trap.ps wasn't installed by `make install'.  (unixinst.mak)
4581 
	- A semicolon was missing in one definition of GS_LIB_DEFAULT.
4582 
(watc.mak)
4583 
	- ll.tr and _temp_.tr weren't created in the obj directory.
4584 
(watc.mak, wctail.mak)
4585 
	- RM_ was defined incorrectly on one platform.  (wccommon.mak)
4586 
 
4587 
</pre><h3><a name="5.81_Utilities"></a>Utilities</h3><pre>
4588 
 
4589 
Makes some minor edits in ansi2knr, contributed by a user, to remove gcc
4590 
warnings.  (ansi2knr.c)
4591 
 
4592 
</pre><h3><a name="5.81_Drivers"></a>Drivers</h3><pre>
4593 
 
4594 
Fixes problems:
4595 
	- There was an int/uint mismatch.  (gdevbmpa.c)
4596 
	- There was a const/non-const mismatch.  (gdevbmpa.c)
4597 
 
4598 
Changes the p*m drivers so that they use the default color mapper when
4599 
possible, speeding up execution.  (gdevpbm.c)
4600 
 
4601 
</pre><h3><a name="5.81_Fonts"></a>Fonts</h3><pre>
4602 
 
4603 
Adds Black as indicating that a bold font should be substituted if
4604 
necessary.  (lib/gs_fonts.ps)
4605 
 
4606 
</pre><h3><a name="5.81_Platforms"></a>Platforms</h3><pre>
4607 
 
4608 
Fixes problems:
4609 
	- The Watcom NT compiler implements setmode and fileno but not
4610 
_setmode and _fileno.  (gp_ntfs.c)
4611 
	- The procedure parameter passed to the Windows _beginthread
4612 
procedure had the wrong prototype.  (gp_win32.c)
4613 
	- Watcom's _beginthread procedure takes an extra argument.
4614 
(windows_.h, gp_win32.c)
4615 
 
4616 
Extends the DLL API to work on the Mac.  This required some restructuring of
4617 
the code, and some NON-BACKWARD-COMPATIBLE changes to move
4618 
environment-specific calls into environment-specific header files.
4619 
(pcwin.mak, os2.mak, winint.mak, dwdll.h, gsdll.h, gsdllmac.h, gsdllos2.h,
4620 
gsdllwin.h, dpmainc.c, dwdll.cpp, dwnodll.cpp, gdevmswn.c, gdevpm.c,
4621 
gdevwdib.c, gsdll.c)
4622 
 
4623 
</pre><h3><a name="5.81_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
4624 
 
4625 
Changes the interpreter to handle two more specification-violating
4626 
conditions that Adobe Acrobat accepts: truncation of %%EOF to %%EO, and use
4627 
of Dest links with no Dests dictionary.  (lib/pdf_main.ps)
4628 
 
4629 
</pre><h3><a name="5.81_Interpreter"></a>Interpreter</h3><pre>
4630 
 
4631 
Fixes problems:
4632 
	- gcc failed to flag initialization of an automatic aggregate, which
4633 
is allowed in neither ANSI nor traditional C.  (iutil.c)
4634 
	- The system name table lacked the last 3 entries.
4635 
(lib/gs_btokn.ps)
4636 
	- Interpolated images always wound up at (0, 0).  (bug introduced in
4637 
5.80) (gxipixel.c)
4638 
	- The Watcom compiler didn't consider "const uint" and "const
4639 
unsigned" to be compatible.  (ifunc.h)
4640 
	- The code to detect identity transfer functions could cause
4641 
transfer functions not to be processed at all.  (icolor.h, zcolor.c,
4642 
zcolor1.c, zht2.c)
4643 
	- The Level 2 redefinition of restore could do an extra grestore,
4644 
possibly creating a temporary reference to a freed object.  (zdevice2.c)
4645 
 
4646 
Adds more tracing for undo-saves, and changes a macro to a procedure.
4647 
(isave.c)
4648 
 
4649 
Removes some #define'd casts.  (isave.c)
4650 
 
4651 
</pre><h3><a name="5.81_Library"></a>Library</h3><pre>
4652 
 
4653 
Fixes problems:
4654 
	- When banding, the color space wasn't reinitialized for each page.
4655 
(gxclist.c)
4656 
	- The criterion for allowing image interpolation still produced
4657 
"mush" for some important classes of image.  (gxiscale.c)
4658 
	- The Watcom compiler didn't consider "const uint" and "const
4659 
unsigned" to be compatible.  (gscdefs.h, gconf.c)
4660 
	- Identity black generation and undercolor removal functions weren't
4661 
passed through the band list correctly.  (gxcldev.h, gxclbits.c, gxclrast.c)
4662 
	- Once again, gcc failed to give a warning for extern followed by
4663 
private.  (gxcdevn.h)
4664 
	- glyphshow set up the text operation in a way that created a
4665 
garbage collector error.  (gschar.c)
4666 
 
4667 
Makes gs_opendevice complete the device procedure vector if the device
4668 
wasn't already open.  (gsdevice.c)
4669 
 
4670 
Factors out the image scaling filter so that we can use either Adobe's
4671 
algorithm or the Mitchell filter.  This involves a NON-BACKWARD-COMPATIBLE
4672 
CHANGE in the way the filter parameters are defined.  (gximage.h, siscale.h,
4673 
sisparam.h, gxclimag.c, gxidata.c, gxiscale.c, siscale.c)
4674 
 
4675 
Makes the criteria for when to use interpolation stricter, since we are
4676 
still using the Mitchell filter.  (gxiscale.c)
4677 
 
4678 
Starts to implement Adobe's image interpolation algorithm.  (siinterp.h,
4679 
siinterp.c, gxiscale.c)
4680 
 
4681 
Speeds up RGB interpolated images by detecting runs of output color.
4682 
(gxiscale.c)
4683 
 
4684 
Makes the default RGB color mapper a "known" mapper that can be propagated
4685 
through device pipelines.  (gxdevice.h, gsdevice.c)
4686 
 
4687 
</pre>
4688 
 
4689 
<hr>
4690 
 
4691 
<h2><a name="Version5.80"></a>Version 5.80 (tester) (4/6/99)</h2>
4692 
 
4693 
<p>
4694 
This version contains the first, and, we hope, largest wave of changes in
4695 
the interpreter required to make the interpreter fully reentrant.
4696 
Unfortunately, many externally visible APIs, including the argument list for
4697 
operator procedures, required changes.
4698 
 
4699 
<p>
4700 
Because of the magnitude of the change, we incremented the version number to
4701 
5.80.
4702 
 
4703 
<p>
4704 
The non-backward-compatible API changes were confined to the interpreter:
4705 
the (very minor) changes to the library required to support interpreter
4706 
reentrancy are fully backward-compatible.
4707 
 
4708 
<p>
4709 
This fileset also implements DeviceN color spaces (always using the
4710 
alternate space), including Indexed spaces over DeviceN spaces, for all uses
4711 
except smooth shading.
4712 
 
4713 
<h3><a name="5.80_Incompatible_changes"></a>Incompatible changes</h3><pre>
4714 
 
4715 
(Interpreter)
4716 
	- names_init now takes a gs_ref_memory_t * rather than a gs_memory_t
4717 
*.
4718 
	- type_print_strings, type_name_strings, and
4719 
ref_type_properties_data are now REF_TYPE_DEBUG_PRINT_STRINGS,
4720 
REF_TYPE_NAME_STRINGS, and REF_TYPE_PROPERTIES_DATA.
4721 
	- The undocumented .writecvp operator, and obj_cvp, now take an
4722 
integer instead of a Boolean to define the type of output desired.
4723 
	- The argument list for operators is changed from os_ptr to
4724 
i_ctx_t *.  Many internal interpreter APIs have changed.
4725 
	- The typedef name for operator procedures is changed from op_proc_p
4726 
to op_proc_t.
4727 
	- gs_interpret now takes an additional context (i_ctx_t **)
4728 
argument.
4729 
	- The interpreter's rescheduling and time-slicing procedures,
4730 
gs_interp_reschedule_proc and gs_interp_time_slice_proc, now take a context
4731 
(i_ctx_t **) argument.
4732 
	- The Type 1 interpreter push_value callback is renamed push_values;
4733 
the first argument of push_values and pop_value has changed from
4734 
gs_font_type1 * to void *.
4735 
	- dict_put*, dict_copy*, dict_undef, dict_resize, dict_grow, and
4736 
dict_unpack now take an additional argument, a dictionary stack where the
4737 
dictionary may be present.
4738 
 
4739 
</pre><h3><a name="5.80_Procedures"></a>Procedures</h3><pre>
4740 
 
4741 
Fixes problems:
4742 
	- The dependency list for the (dummy) trapping feature was wrong.
4743 
(int.mak)
4744 
	- The directory for jerror_.h was incorrect.  (jpeg.mak)
4745 
 
4746 
Removes the never-used -header switch from genconf.  (genconf.c)
4747 
 
4748 
Adds priority-sorted resources to genconf, currently used only for image
4749 
classes.  (genconf.c)
4750 
 
4751 
Adds an imageclass resource to genconf, for what used to be called image
4752 
strategies.  (genconf.c)
4753 
 
4754 
</pre><h3><a name="5.80_Utilities"></a>Utilities</h3><pre>
4755 
 
4756 
Fixes problems:
4757 
	- ansi2knr didn't recognize id1(id2, xxxxx) as not being a function.
4758 
(ansi2knr.c)
4759 
	- viewpcx still referred to the deleted PCXDecode filter.
4760 
(lib/viewpcx.ps)
4761 
	- strlen was called without being declared.  (genarch.c)
4762 
 
4763 
</pre><h3><a name="5.80_Drivers"></a>Drivers</h3><pre>
4764 
 
4765 
Fixes problems:
4766 
	- Some drivers that called gdev_prn_open_printer didn't check the
4767 
return code for errors.  (gdevdjet.c, gdevhl7x.c)
4768 
	- The cljet5 driver didn't handle long-edge feed properly.  (from
4769 
Artifex) (gdevclj.c)
4770 
	- The [e]pswrite driver could produce incorrect output if the input
4771 
file had zero-length lines.  (gdevps.c)
4772 
	- The X driver didn't handle byte-swapped 16-bit displays.
4773 
(gdevx.c)
4774 
	- There was an int/uint mismatch.  (gdevbmp.c)
4775 
	- Some needed headers weren't included.  (gdevdcrd.c, gdevpdfo.c)
4776 
	- The updated mswinpr2 driver wouldn't compile with older Windows
4777 
header files.  (gdevwpr2.c)
4778 
 
4779 
Removes some unnecessary #includes.  (gdevps.c)
4780 
 
4781 
Adds user-contributed drivers for the CoStar LabelWriter II Plus and XL
4782 
label printers.  (gdevcslw.c)
4783 
 
4784 
Speeds up color mapping for the bitrgb driver a little, by using the default
4785 
procedure.  (gdevbit.c)
4786 
 
4787 
</pre><h3><a name="5.80_Fonts"></a>Fonts</h3><pre>
4788 
 
4789 
Fixes problems:
4790 
	- TrueType fonts with odd-length glyf definitions caused an
4791 
invalidfont error.  (lib/gs_ttf.ps)
4792 
 
4793 
Changes the font substitution mechanism slightly to be more useful to the
4794 
PDF interpreter.  (lib/gs_fonts.ps)
4795 
 
4796 
</pre><h3><a name="5.80_Platforms"></a>Platforms</h3><pre>
4797 
 
4798 
Fixes problems:
4799 
	- Some needed headers weren't included.  (watc.mak, watclib.mak,
4800 
winlib.mak, gp_win32.c)
4801 
 
4802 
</pre><h3><a name="5.80_Interpreter"></a>Interpreter</h3><pre>
4803 
 
4804 
Fixes problems:
4805 
	- There were many signed/unsigned char type errors that gcc didn't
4806 
catch.  (gp_gnrdl.c)
4807 
	- The operator definition list for zdouble was too long.  (int.mak,
4808 
zdouble.c)
4809 
 
4810 
Removes some unnecessary #includes.  (zchar.c)
4811 
 
4812 
Speeds up names_string_ref.  (inamedef.h, inames.h, imain.c, iname.c)
4813 
 
4814 
Speeds up reading string/name array parameters.  (iparam.c)
4815 
 
4816 
Refactors the implementation of ==, so that all types other than arrays and
4817 
dictionaries are handled in C code.  (lib/gs_init.ps, iutil.h, iref.h,
4818 
gp_gnrdl.c, idebug.c, iutil.c, zfileio.c, ztype.c)
4819 
 
4820 
Changes the type name for operator procedures from op_proc_p to op_proc_t,
4821 
for consistency and also to help detect places that need the argument list
4822 
changed.  (ichar.h, interp.h, iref.h, opdef.h, interp.c, iutil.c, zchar.c,
4823 
zcharx.c, zcontrol.c, zupath.c)
4824 
 
4825 
Changes the argument type for operators from os_ptr to i_ctx_t *.  (i_ctx_t
4826 
is an alias for gs_context_state_t.)  This also requires adding a context
4827 
pointer to many internal procedures, or changing an os_ptr argument to
4828 
i_ctx_t *.  This is a MASSIVE NON-BACKWARD-COMPATIBLE change which we simply
4829 
saw no way to avoid if the interpreter was to be made fully re-entrant.  See
4830 
"Incompatible changes" above for externally visible changes.
4831 
(lib/gs_init.ps, bfont.h, btoken.h, dstack.h, estack.h, files.h, ichar.h,
4832 
ichar1.h, icharout.h, icie.h, icolor.h, icontext.h, icsmap.h, ifilter.h,
4833 
ifont1.h, igstate.h, iht.h, iimage.h, iimage2.h, imain.h, imemory.h,
4834 
interp.h, ipacked.h, iref.h, iscan.h, istream.h, opdef.h, oper.h,
4835 
opextern.h, ostack.h, ialloc.c, icontext.c, iinit.c, imain.c, inouparm.c,
4836 
interp.c, ireclaim.c, iscan.c, iscanbin.c, zarith.c, zarray.c, zbfont.c,
4837 
zbseq.c, zcfont.c, zchar.c, zchar1.c, zchar2.c, zchar32.c, zchar42.c,
4838 
zcharout.c, zcharx.c, zcid.c, zcie.c, zcolor.c, zcolor1.c, zcolor2.c,
4839 
zcontext.c, zcontrol.c, zcrd.c, zcsdevn.c, zcsindex.c, zcspixel.c,
4840 
zcssepr.c, zdevice.c, zdevice2.c, zdict.c, zdosio.c, zdouble.c, zdpnext.c,
4841 
zdps.c, zdps1.c, zfbcp.c, zfcmap.c, zfdctd.c, zfdcte.c, zfdecode.c, zfile.c,
4842 
zfileio.c, zfilter.c, zfilter2.c, zfilterx.c, zfont.c, zfont0.c, zfont1.c,
4843 
zfont2.c, zfont32.c, zfont42.c, zfproc.c, zfreuse.c, zfunc.c, zfzlib.c,
4844 
zgeneric.c, zgstate.c, zhsb.c, zht.c, zht1.c, zht2.c, zimage.c, zimage2.c,
4845 
zimage3.c, ziodev.c, ziodev2.c, zmath.c, zmatrix.c, zmedia2.c, zmisc.c,
4846 
zmisc1.c, zmisc2.c, zmisc3.c, zpacked.c, zpaint.c, zpath.c, zpath1.c,
4847 
zpcolor.c, zrelbit.c, zrop.c, zshade.c, zstack.c, zstring.c, zsysvm.c,
4848 
ztoken.c, ztrap.c, ztype.c, zupath.c, zusparam.c, zvmem.c, zvmem2.c)
4849 
 
4850 
Changes caching for the interpreter's CIE color spaces so that instead of
4851 
changing the color space installation procedure to one that schedules the
4852 
sampling of the procedures though a back door, it leaves the installation
4853 
procedure alone and schedules the sampling in the color-space-specific
4854 
setcolorspace operator.  This is needed for interpreter reentrancy.
4855 
(icie.h, zcie.c, zcrd.c)
4856 
 
4857 
Makes the linkage from the dictionary machinery to the cached values in the
4858 
dictionary stack and the name table explicit, by adding a dstack pointer to
4859 
all the relevant dict_* procedures.  This is needed for interpreter
4860 
reentrancy.  (iddstack.h, idict.h, idstack.h, idict.c)
4861 
 
4862 
Updates clients for the change in the dictionary API.  For each changed
4863 
dict_ procedure, we add an idict_ procedure that uses i_ctx_p-&gt;dict_stack as
4864 
the additional argument.  (iddict.h, icontext.c, iinit.c, interp.c,
4865 
iparam.c, iscanbin.c, zdps.c, zfcmap.c, zdict.c, zfont.c, zfont0.c,
4866 
zgeneric.c, zht2.c, zmisc2.c)
4867 
 
4868 
Changes Pattern color remapping so that it saves information in the
4869 
interpreter's part of the graphics state, rather than manipulating the
4870 
e-stack directly.  This is needed for interpreter reentrancy.  (errors.h,
4871 
icremap.h, igstate.h, interp.c, zgstate.c, zpcolor.c)
4872 
 
4873 
Adds to the "main instance" structure a pointer to the currently executing
4874 
context.  This is needed for interpreter reentrancy.  (imain.h, iminst.h,
4875 
main.h, imain.c, imainarg.c)
4876 
 
4877 
Changes the argument list for operator initialization procedures from void
4878 
to i_ctx_t *.  (opdef.h, ireclaim.c, zbfont.c, zbseq.c, zcontext.c, zfile.c,
4879 
zfont.c, zpcolor.c)
4880 
 
4881 
Changes the initialization of the interpreter's allocators so it doesn't
4882 
presume the allocator structure is global.  (ialloc.h, ialloc.c, imain.c)
4883 
 
4884 
Factors out the structure definition of the stacks, which is needed for
4885 
defining the state of a context, from the API, which is only needed by
4886 
actual clients.  (icstate.h, idsdata.h, idstack.h, iesdata.h, iestack.h,
4887 
iosdata.h, iostack.h, isdata.h, istack.h)
4888 
 
4889 
Changes filter error reporting so that the report_error procedure doesn't
4890 
need access to the interpreter.  (interp.h, interp.c, zfile.c, zfileio.c)
4891 
 
4892 
Completes the implementation of DeviceN color spaces at the interpreter
4893 
level.  (lib/gs_res.ps, lib/gs_lev2.ps, lib/gs_ll3.ps, icsmap.h, zcsdevn.c,
4894 
zcsindex.c, zcssepr.c, zimage.c)
4895 
 
4896 
Speeds up color mapping for identity transfer, BG, or UCR functions.
4897 
(zcolor.c)
4898 
 
4899 
</pre><h3><a name="5.80_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
4900 
 
4901 
Fixes problems:
4902 
	- The L range for Lab color spaces was wrong.  (lib/pdf_draw.ps)
4903 
	- Images in Lab color spaces came out all black.  (lib/pdf_draw.ps)
4904 
 
4905 
Improves the font substitution mechanism slightly.  (lib/pdf_font.ps)
4906 
 
4907 
</pre><h3><a name="5.80_Streams"></a>Streams</h3><pre>
4908 
 
4909 
Adds an error string to the stream state structure, which stream
4910 
implementations can set when returning an error.  The motivation is to allow
4911 
the PostScript interpreter to put this into $error.errorinfo.  (scommon.h,
4912 
stream.c)
4913 
 
4914 
</pre><h3><a name="5.80_Library"></a>Library</h3><pre>
4915 
 
4916 
Fixes problems:
4917 
	- The S_ISCHR fix in 5.73 had a typo.  (stat_.h)
4918 
	- The garbage collector traced dash pattern pointers even if the
4919 
pattern had no elements.  (gzline.h, gsistate.c)
4920 
	- Always tracing the clip_path element of gx_device_clist for
4921 
garbage collection could cause crashes, because this pointer could be stale.
4922 
However, we have to trace this pointer if an image is being processed.
4923 
(gxclist.c)
4924 
	- A close-brace was positioned incorrectly.  (No effect on the
4925 
working of the code.)  (gximage3.c)
4926 
	- Some macros caused some compilers to complain about functions that
4927 
didn't return values.  (gsmemlok.c)
4928 
	- A procedure vector wasn't declared const.  (gsmemlok.c)
4929 
	- Some needed headers weren't included.  (gscrdp.c)
4930 
	- A const pointer was being treated as non-const.  (gxcpath.c)
4931 
	- The algorithm for choosing halftone cell dimensions required an
4932 
unreasonably close angle tolerance (0.01 degrees, rather than 1% of a
4933 
90-degree possible difference).  (gshtscr.c)
4934 
 
4935 
Speeds up arcs a little more.  (gspath1.c)
4936 
 
4937 
Removes some unnecessary #includes.  (gxclpath.h, gxcpath.h, gzcpath.h,
4938 
gxccman.c, gxclip.c, gxcpath.c, gxi12bit.c, gxicolor.c, gxifast.c,
4939 
gximono.c, gxiscale.c, gxpcmap.c)
4940 
 
4941 
Cleans up some formatting.  (gxpath.c)
4942 
 
4943 
Re-enables image interpolation for images that have at least 8 bits of input
4944 
data per pixel.  This is still a compromise....  (gxiscale.c)
4945 
 
4946 
Enhances the default implementation of parameter lists so that a C parameter
4947 
list can forward unrecognized param_read calls to another parameter list.
4948 
This allows constructing incrementally modified parameter lists for internal
4949 
purposes.  (gsparam.h, gscparam.c)
4950 
 
4951 
Changes the first argument of the Type 1 charstring interpreter push_value
4952 
(which is renamed push_values) and pop_value callbacks from the font pointer
4953 
to an arbitrary pointer passed in to the interpreter.  This is needed for
4954 
PostScript interpreter reentrancy.  (gstype1.h, gxfont1.h, gxtype1.h,
4955 
gstype1.c, gxtype1.c)
4956 
 
4957 
Adds an allocator wrapper that calls a closure to attempt to free up memory
4958 
if an allocation fails.  This is used for asynchronous operation (waiting
4959 
for the page queue to empty) and operation with an optional disk for the
4960 
band list.  (gsmemret.h, gsmemret.c)
4961 
 
4962 
Adds the retrying wrapper to the malloc allocator.  (gsmalloc.c)
4963 
 
4964 
Makes "async" printer devices use the retrying wrapper.  (gdevprna.c)
4965 
 
4966 
Makes clist_fill_parallelogram recognize rectangles.  This makes a big
4967 
difference for images rotated 90 degrees.  (gsrect.h, gdevddrw.c,
4968 
gxclpath.c)
4969 
 
4970 
Arranges to construct the list of image classes (formerly called strategies)
4971 
statically rather than dynamically.  (lib.mak, gscdefs.h, gxiclass.h,
4972 
gximage.h, gconf.c, gxi12bit.c, gxicolor.c, gxifast.c, gximono.c,
4973 
gxipixel.c, gxiscale.c)
4974 
 
4975 
Implements Indexed color spaces for high-level image banding.  (gxclist.h,
4976 
gxclpath.h, gxclimag.c, gxclrast.c)
4977 
 
4978 
Arranges to construct the blank bitmap for colored patterns statically
4979 
rather than dynamically.  (gsbitmap.h, gxbitmap.h, gxcht.c)
4980 
 
4981 
Changes FORCE_STRIP_HALFTONES from a #define to a static Boolean.
4982 
(gshtscr.c)
4983 
 
4984 
Implements alternate-space DeviceN color spaces.  (gscspace.h, gxcdevn.h,
4985 
gscdevn.c)
4986 
 
4987 
Implements DeviceN color spaces for images.  (gximage.h, gsimage.c,
4988 
gxi12bit.c, gxicolor.c, gxidata.c, gximage3.c, gximono.c, gxipixel.c)
4989 
 
4990 
Speeds up color mapping a bit.  (gxfmap.h, gsdevice.c, gsstate.c,
4991 
gxclbits.c, gxclrast.c, gxcmap.c)
4992 
 
4993 
</pre>
4994 
 
4995 
<hr>
4996 
 
4997 
<h2><a name="Version5.73"></a>Version 5.73 (tester) (3/19/99)</h2>
4998 
 
4999 
<p>
5000 
This fileset fixes a few bugs and adds a couple of minor performance
5001 
improvements.  Its purpose is to fix a fairly serious memory management bug
5002 
and a Microsoft-platform compilation problem, both introduced in 5.72.
5003 
 
5004 
<h3><a name="5.73_Incompatible_changes"></a>Incompatible changes</h3><pre>
5005 
 
5006 
(Library)
5007 
	- Removes the restriction on device registration that was introduced
5008 
in 5.72.
5009 
	- gx_[c]path_scale_exp2 are replaced by gx_[c]path_scale_exp2_shared.
5010 
 
5011 
</pre><h3><a name="5.73_Documentation"></a>Documentation</h3><pre>
5012 
 
5013 
Identifies GNU readline support as user-contributed, and adds the author's
5014 
name.  (int.mak, unix-gcc.mak, gp_gnrdl.c)
5015 
 
5016 
Notes that an edit is required for GNU readline for AIX.  (doc/Make.htm)
5017 
 
5018 
Changes the bug reporting e-mail address to bug-gs@aladdin.com.
5019 
(doc/Bug-form.htm, doc/New-user.htm, doc/Use.htm, imainarg.c)
5020 
 
5021 
</pre><h3><a name="5.73_Procedures"></a>Procedures</h3><pre>
5022 
 
5023 
Adds FEATURE_DEVS_EXTRA and DEVICE_DEVS_EXTRA, reserved for setting from the
5024 
command line.  (gs.mak)
5025 
 
5026 
</pre><h3><a name="5.73_Drivers"></a>Drivers</h3><pre>
5027 
 
5028 
Fixes problems:
5029 
	- A needed cast was missing.  (gdevx.c)
5030 
 
5031 
</pre><h3><a name="5.73_Interpreter"></a>Interpreter</h3><pre>
5032 
 
5033 
Fixes problems:
5034 
	- A needed cast was missing.  (zfname.c)
5035 
	- The CFF loader didn't handle empty subsections correctly.
5036 
(lib/gs_cff.ps)
5037 
	- GNU readline gave an error, rather than expanding the input
5038 
buffer, when called in response to %lineedit.  (files.h, zfileio.c,
5039 
ziodev.c)
5040 
	- GNU readline wasn't always initialized, causing a crash when an
5041 
attempt was made to shut it down.  (iminst.h, imain.c)
5042 
 
5043 
Adds more tracing to the CFF loader.  (lib/gs_cff.ps)
5044 
 
5045 
Adds some deconstifying casts to compensate for broken headers in the GNU
5046 
readline package.  (gp_gnrdl.c)
5047 
 
5048 
</pre><h3><a name="5.73_Library"></a>Library</h3><pre>
5049 
 
5050 
Fixes problems:
5051 
	- The bounding box device didn't ignore filling paths consisting
5052 
only of a moveto.  (gdevbbox.c)
5053 
	- Some systems have S_IFCHR but not S_ISCHR.  (stat_.h)
5054 
	- The clipping list accumulator didn't merge single rectangles
5055 
correctly.  (gxacpath.c)
5056 
	- The clipping list accumulator wasn't aggressive enough about
5057 
merging rectangles.  (Performance effect only.)  (gxacpath.c)
5058 
	- The page wasn't cleared when installing a new device. (bug
5059 
introduced in 5.72) (gsdevice.c)
5060 
	- With graphics anti-aliasing enabled, executing clip or eoclip
5061 
followed by fill or stroke produced incorrect output.  (bug introduced
5062 
between 5.10 and 5.50) (gxpath.h, gspaint.c, gxcpath.c, gxpath2.c)
5063 
	- The garbage collector could crash if any banded devices were
5064 
active.  (bug introduced in 5.72) (gdevprn.c)
5065 
 
5066 
Changes memory management for device instances to allocate the structure
5067 
type objects dynamically.  This gets rid of a static, and also gets rid of
5068 
the requirement that device prototypes be registered, at the expense of an
5069 
extra copy of the (small) structure type object per instance of certain
5070 
devices.  (gscdefs.h, gxdevcli.h, gxdevice.h, gconf.c, gsdevice.c)
5071 
 
5072 
Disables image interpolation for all high-resolution images, not just
5073 
black-and-white, since this produces better-looking output.  (gxiscale.c)
5074 
 
5075 
Speeds up path bounding box computation a little.  (gxpath2.c)
5076 
 
5077 
Speeds up clipping a little.  (gxclip.c)
5078 
 
5079 
Cleans up formatting a bit.  (gxacpath.c)
5080 
 
5081 
Adds support for libpng version 1.0.3, but (for now) updates only the
5082 
OpenVMS and Unix makefiles to use it.  (libpng.mak, openvms.mak,
5083 
openvms.mmk, ugcclib.mak, unix-gcc.mak, unixansi.mak, unixtrad.mak)
5084 
 
5085 
Attempts to work around picky compilers that don't allow assigning T[M][N]
5086 
to const T[M][N].  (gxcht.c)
5087 
 
5088 
</pre>
5089 
 
5090 
<hr>
5091 
 
5092 
<h2><a name="Version5.72"></a>Version 5.72 (tester) (3/17/99)</h2>
5093 
 
5094 
<p>
5095 
This fileset finally gets rid of the need to have jpeg, libpng, or zlib
5096 
source code on Unix systems that already have these libraries available.  It
5097 
also starts to add support for general DeviceN color spaces.
5098 
 
5099 
<p>
5100 
Works in progress:
5101 
<ul>
5102 
<li>	- Fix Fontmap -&gt; Fontmap.GS link, which VMS can't handle.
5103 
<li>	- Make x11alpha do real alpha blending.
5104 
<li>	- spdiff.c is unfinished, partly wrong.
5105 
<li>	- DeviceN support is in progress.  In gxcht.c,
5106 
set_ht_colors_le_4
5107 
and set_color_ht_gt_4 don't have any way to color-map >4 planes.
5108 
</ul>
5109 
 
5110 
<h3><a name="5.72_Incompatible_changes"></a>Incompatible changes</h3><pre>
5111 
 
5112 
(Interpreter)
5113 
	- The str argument of arg_push_memory_string is no longer const.
5114 
	- The last argument of print_reloc is now const.
5115 
 
5116 
(Library)
5117 
	- Clients should never call the device open_device or close_device
5118 
procedure directly: they should call gs_opendevice or gs_closedevice.
5119 
	- The fn_free_functions procedure has been made private.
5120 
	- The first argument of gs_currentpoint is no longer const.
5121 
	- References to header files in the third-party libraries must now
5122 
include a trailing _, i.e.: jerror_.h jmorecf_.h jpeglib_.h png_.h zconf_.h
5123 
	- IJG JPEG library versions before v5a are no longer supported.
5124 
	- ilog2 replaces small_exact_log2.
5125 
	- Support for "outside" clipping has been removed.
5126 
	- Clients that define their own devices now must either register
5127 
them in the makefile (using the SET[P]DEV[2] macros) or set the stype
5128 
pointer in the static prototype to the correct structure type (or at least a
5129 
structure type with the correct procedures).
5130 
 
5131 
</pre><h3><a name="5.72_Documentation"></a>Documentation</h3><pre>
5132 
 
5133 
Clarifies the fact that clients should never call the device open_device or
5134 
close_device procedure directly.  (doc/Drivers.htm)
5135 
 
5136 
Updates contact information for Artifex Software.  (doc/Commprod.htm,
5137 
doc/New-user.htm)
5138 
 
5139 
Clarifies the fact that Aladdin did not write gdevcdj.c.  (gdevcdj.c)
5140 
 
5141 
Documents the new -TTYPAUSE switch.  (doc/Use.htm)
5142 
 
5143 
Adds SCO OpenServer 5.0.5 to the list of systems where Ghostscript is known
5144 
to build.  (doc/Make.htm)
5145 
 
5146 
Notes that the MIPSpro 7.2.1.3m compiler produces incorrect output.
5147 
(doc/Make.htm)
5148 
 
5149 
</pre><h3><a name="5.72_Procedures"></a>Procedures</h3><pre>
5150 
 
5151 
Fixes problems:
5152 
	- The Unix install directory ($(gsdatadir)) and the Unix default
5153 
search path ($(gsdatadir)/lib) weren't compatible.  (bug introduced since
5154 
5.50) (unixinst.mak)
5155 
	- The compilation rule for echogs omitted a dependency and also
5156 
failed to specify a directory for header files.  (unix-aux.mak)
5157 
	- Third-party library source code was required even if the
5158 
corresponding SHARE_xxx option was set to 1.  (devs.mak, gs.mak, int.mak,
5159 
lib.mak, jpeg.mak)
5160 
 
5161 
Adds a -dTTYPAUSE switch to cause .confirm to read from /dev/tty instead of
5162 
stdin, useful when the data input is a pipe.  (lib/gs_init.ps)
5163 
 
5164 
</pre><h3><a name="5.72_Utilities"></a>Utilities</h3><pre>
5165 
 
5166 
Fixes problems:
5167 
	- Some preprocessor macros were defined twice on VMS.  (echogs.c)
5168 
	- traceop.ps didn't build operator-tracing procedures in global VM.
5169 
(This didn't matter before we introduced local pseudo-operators.)
5170 
(lib/traceop.ps)
5171 
	- geninit produced invalid output or hung if the input files didn't
5172 
have the correct EOL representation for the platform.  (geninit.c)
5173 
 
5174 
Updates a (probably otherwise obsolete) file for the deletion of the private
5175 
JPEG library error message table.  (bughunt.sh)
5176 
 
5177 
</pre><h3><a name="5.72_Drivers"></a>Drivers</h3><pre>
5178 
 
5179 
Fixes problems:
5180 
	- A procedure returning void tried to return a value.  (gdevtfax.c)
5181 
	- For 24-bit displays, XGetImage can return an image in which
5182 
bits_per_pixel is 32 rather than 24, which is not at all obvious from the
5183 
documentation; also, the bit and byte ordering may not be MSBFirst.
5184 
(gdevx.c)
5185 
	- XFree takes a char *, not a void *.  (gdevx.c)
5186 
	- The fix in 5.71 to adjust the width of TIFF images introduced
5187 
another bug.  (gdevtfax.c)
5188 
	- If the X driver used a standard colormap, pixel values 255 and
5189 
less didn't map back to RGB properly. (bug introduced in 5.71) (gdevxcmp.c)
5190 
	- The ForceMono addition to gdevbit.c (in 5.71) was incorrect.
5191 
(gdevbit.c)
5192 
	- There was a const mismatch in an extern.  (gdevxalt.c)
5193 
	- Third-party library source code was required even if the
5194 
corresponding SHARE_xxx option was set to 1.  Fixing this required
5195 
referencing all third-party library header files through *_.h files.
5196 
(gdevjpeg.c, gdevpdfi.c, gdevpng.c, gdevpsdi.c, gdevpsdp.c)
5197 
	- There was no way to cause the bounding box device to give up its
5198 
reference to the target.  (gdevbbox.h, gdevbbox.c)
5199 
	- pdfwrite crashed if given a 12-bit-per-sample CMYK image when
5200 
ConvertCMYKImagesToRGB was true, and produced invalid output for other
5201 
12-bit-per-sample images (PDF limits bits-per-sample to 8).  (gdevpsdi.c)
5202 
	- pdfwrite mangled planar images if bits-per-sample was other than
5203 
8.  (bug introduced since 5.50) (gdevpdfi.c)
5204 
 
5205 
Changes some code to reduce compiler warnings about casts discarding const.
5206 
(gdevxalt.c)
5207 
 
5208 
Removes a test that allowed referencing the statically allocated instance of
5209 
the alternative X drivers.  (gdevxalt.c)
5210 
 
5211 
Changes a reference to small_exact_log2.  (gdevsvga.c)
5212 
 
5213 
Greatly improves the PDF writer's handling of simple pattern fills, by
5214 
retaining them as pattern fills.  (gdevpdfx.h, gdevpdf.c, gdevpdfi.c)
5215 
 
5216 
</pre><h3><a name="5.72_Fonts"></a>Fonts</h3><pre>
5217 
 
5218 
Fixes problems:
5219 
	- Cn in a font name wasn't recognized as indicating a condensed
5220 
font.  (lib/gs_fonts.ps)
5221 
 
5222 
</pre><h3><a name="5.72_Interpreter"></a>Interpreter</h3><pre>
5223 
 
5224 
Fixes problems:
5225 
	- Third-party library source code was required even if the
5226 
corresponding SHARE_xxx option was set to 1.  Fixing this required
5227 
referencing all third-party library header files through *_.h files.
5228 
(zfdctd.c, zfdcte.c)
5229 
	- An /undefined error occurred on floating point numbers whose
5230 
integer part exceeded the size of a long (normally 31 bits) and that also
5231 
included a fraction.  (iscannum.c)
5232 
	- ialloc.c included gxarith.h unnecessarily.  (ialloc.c)
5233 
 
5234 
When opening a terminal for reading, always sets the buffer size to 1.  This
5235 
does not apply to %stdin, %lineedit, or %statementedit.  (zfile.c)
5236 
 
5237 
Changes code to use the new deconstifying freeing procedures, to remove
5238 
deconstifying casts.  (gsargs.h, ialloc.h, gsargs.c, zfname.c, zfunc.c)
5239 
 
5240 
Adds a writable packed ref pointer variant to ref.value, to remove compiler
5241 
warnings about casts discarding const.  (igc.h, iref.h, idict.c, igc.c,
5242 
igcref.c)
5243 
 
5244 
Changes the help printouts to use the new printf_program_ident procedure.
5245 
(imainarg.c)
5246 
 
5247 
Generalizes clients to handle color spaces that may have more than 4
5248 
components.  (zcsdevn.c, zcsindex.c, zcssepr.c, zdpnext.c, zfdecode.c)
5249 
 
5250 
Removes support for outside clipping, which we implemented only because we
5251 
misinterpreted a requirement.  (zpath.c)
5252 
 
5253 
</pre><h3><a name="5.72_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
5254 
 
5255 
Fixes problems:
5256 
	- Selecting a colored Pattern color space caused an error.
5257 
(lib/pdf_draw.ps, lib/pdf_ops.ps)
5258 
	- Reading data from a subfile with no filter caused an error.
5259 
(lib/pdf_base.ps)
5260 
 
5261 
Allows mask images to omit BitsPerComponent: Acrobat Reader accepts this
5262 
even though the PDF specification requires it to be present (with value =
5263 
1).  (lib/pdf_draw.ps)
5264 
 
5265 
</pre><h3><a name="5.72_Streams"></a>Streams</h3><pre>
5266 
 
5267 
Fixes problems:
5268 
	- The PixelDifference filters didn't propagate leftover bits in the
5269 
last byte of a row. (bug probably introduced in 5.60) (spdiff.c)
5270 
	- The 1- and 2-bit-per-pixel PixelDifferenceEncode filters were
5271 
broken.  (spdiff.c)
5272 
 
5273 
Changes code slightly to remove a warning about an uninitialized variable.
5274 
(spdiff.c)
5275 
 
5276 
Extends the PixelDifference filters to handle more than 4 Colors.
5277 
s_PDiff_max_Colors is the maximum value.  (spdiffx.h, spdiff.c)
5278 
 
5279 
Adds a stream for converting 12-bit samples to 8-bit.  (gdevpsds.h,
5280 
gdevpsds.c)
5281 
 
5282 
Gets rid of the no longer needed private copy of the JPEG error message
5283 
table.  (sdcte.c, sdeparam.c, sjpegerr.c [deleted], sjpegc.c)
5284 
 
5285 
</pre><h3><a name="5.72_Library"></a>Library</h3><pre>
5286 
 
5287 
Fixes problems:
5288 
	- If a 1-bit-per-pixel image terminated early, the last few scan
5289 
lines might not be written out.  (gxidata.c)
5290 
	- The bbox device could leave its target in a half-open state,
5291 
because it called the open/close_device procedures directly rather than
5292 
going through gs_open/closedevice.  We "fixed" this by making this device
5293 
forward open and close, but conditionally, so that clients can choose.
5294 
(gdevbbox.c)
5295 
	- Third-party library source code was required even if the
5296 
corresponding SHARE_xxx option was set to 1.  Fixing this required
5297 
referencing all third-party library header files through *_.h files.
5298 
(sdcparam.c, sdctc.c, sdctd.c, sddparam.c, sjpegc.c, sjpegd.c, sjpege.c,
5299 
sjpegerr.c)
5300 
	- Low-memory recovery in the band list writer sometimes didn't work,
5301 
because a test was backwards.  (gxcldev.h, gxclist.c)
5302 
	- Executing a put_params during band rasterizing didn't update
5303 
cached values in the imager state.  This was probably not a problem in
5304 
practice, since the only parameters that affect cached values (device color
5305 
space, depth, and color mapping) were very rarely set.  (gxclrast.c)
5306 
	- Converting 12-bit planar images to chunky format could store
5307 
beyond the end of the output area and corrupt memory.  (gsflip.h, gsflip.c)
5308 
	- The algorithms for converting 4-plane, 1- and 2-bit planar images
5309 
to chunky format were wrong.  (gsflip.c)
5310 
	- Images that lay entirely outside the page could cause a memory
5311 
access error.  (gxclimag.c)
5312 
	- The bbox device could return excessively conservative values for
5313 
stroked paths.  (gxpaint.h, gdevbbox.c, gxpaint.c, gxstroke.c)
5314 
	- Banding devices now include some pointers that the garbage
5315 
collector must trace.  (gdevprn.h, gxclist.h, gxdevice.h, gdevprn.c,
5316 
gsdevice.c, gxclist.c)
5317 
 
5318 
Adds a gs_opendevice procedure to mirror gs_closedevice.  (gsdevice.h,
5319 
gsdevice.c)
5320 
 
5321 
Adds deconstifying freeing procedures to the memory manager.  This allows us
5322 
to have pointers as structure members that should be const * for all
5323 
ordinary clients, and still be able to free the referenced objects without a
5324 
compiler warning.  (gsmemory.h, gsmemory.c)
5325 
 
5326 
Changes code, often to use the new deconstifying freeing procedures, to
5327 
remove deconstifying casts.  (gspath.h, gxfunc.h, gsfunc.c, gsfunc0.c,
5328 
gsfunc3.c, gspath.c, gsptype1.c)
5329 
 
5330 
Changes the eprintf macros so they print the version as well as the program
5331 
name.  (std.h, gscdef.c, gsmisc.c)
5332 
 
5333 
Adds procedures that update cached values in graphics or imager states after
5334 
setting device parameters.  Clients should use these when setting parameters
5335 
of devices that may be current in graphics or imager states.  Note that this
5336 
is only a partial solution for a much deeper problem, and may even have to
5337 
be replaced at some point.  (gsdevice.h, gsdevice.c)
5338 
 
5339 
Defines GS_CLIENT_COLOR_MAX_COMPONENTS (in gsccolor.h),
5340 
GX_DEVICE_COLOR_MAX_COMPONENTS (in gxcindex.h), and GS_IMAGE_MAX_COMPONENTS,
5341 
and starts to use them where needed, in anticipation of implementing DeviceN
5342 
color spaces.  (gsccolor.h, gsdcolor.h, gsiparam.h, gsiparm4.h, gxcindex.h,
5343 
gxctable.h, gximage.h, gxshade.h, gdevplnx.c, gscdevn.c, gscolor2.c,
5344 
gxcht.c, gxclimag.c, gxcmap.c, gxicolor.c, gxctable.c, gxi12bit.c)
5345 
 
5346 
Replaces small_exact_log2 by a procedure ilog2 that computes floor(log2(n)).
5347 
(gxarith.h, gsmisc.c, gspaint.c, gxccman.c, gxclimag.c, gxclrect.c)
5348 
 
5349 
Upgrades gsflip.c to handle >4 planes.  (gsbitops.h, gsflip.h, gsflip.c)
5350 
 
5351 
Speeds up getting and testing memory device prototypes a little.  (gdevmem.c)
5352 
 
5353 
Speeds up adding arcs to a path a little.  (gspath1.c)
5354 
 
5355 
Increases the precision of a precomputed constant from float to double.
5356 
(gxpath.h)
5357 
 
5358 
Adds a new band list operation to make circles smaller and faster.
5359 
(gxclpath.h, gxclpath.c, gxclrast.c)
5360 
 
5361 
Adds an accessor procedure for the start point of the current subpath.
5362 
(gxpath.h, gxpath2.c)
5363 
 
5364 
Removes support for outside clipping, which we implemented only because we
5365 
misinterpreted a requirement.  (gspath.h, gxcldev.h, gxcpath.h, gxpath.h,
5366 
gspath.c, gxacpath.c, gxclip.c, gxclpath.c, gxclrast.c, gxcpath.c)
5367 
 
5368 
Changes gs_copydevice to require that static prototypes either be registered
5369 
in gx_device_list or have a correct stype pointer.  (This is already the
5370 
case for all devices in code we distribute.)  (gsdevice.c)
5371 
 
5372 
Adds ENUM_PTRS_PROC and RELOC_PTRS_PROC macros for giving a name to the
5373 
typed pointer to the object being processed.  (gsstruct.h)
5374 
 
5375 
</pre>
5376 
 
5377 
<hr>
5378 
 
5379 
<h2><a name="Version5.71"></a>Version 5.71 (tester) (3/3/99)</h2>
5380 
 
5381 
<p>
5382 
This fileset reinstates support for TrueColor X displays, and adds optional
5383 
support for GNU readline.  It also includes a little more work on the new
5384 
driver text API.
5385 
 
5386 
<h3><a name="5.71_Incompatible_changes"></a>Incompatible changes</h3><pre>
5387 
 
5388 
(Library)
5389 
	- The *line_accum* macros are now capitalized; declare_line_accum is
5390 
renamed DECLARE_LINE_ACCUM_COPY, and DECLARE_LINE_ACCUM is new.
5391 
 
5392 
</pre><h3><a name="5.71_Documentation"></a>Documentation</h3><pre>
5393 
 
5394 
Documents the CIE joint cache invariant more accurately.  (gscie.h)
5395 
 
5396 
Adds a request for xdpyinfo/xwininfo output to the problem reporting form.
5397 
(doc/Bug-form.htm)
5398 
 
5399 
</pre><h3><a name="5.71_Procedures"></a>Procedures</h3><pre>
5400 
 
5401 
Fixes problems:
5402 
	- The default search path was missing the lib subdirectory on many
5403 
platforms.  (dvx-gcc.mak, os2.mak, ugcclib.mak, unix-gcc.mak, unixansi.mak,
5404 
unixtrad.mak, watc.mak, watclib.mak, watcw32.mak)
5405 
	- The dependency list for the X Windows drivers was incorrect,
5406 
sometimes causing needed recompilation to be omitted.  (devs.mak)
5407 
 
5408 
</pre><h3><a name="5.71_Utilities"></a>Utilities</h3><pre>
5409 
 
5410 
Fixes problems:
5411 
	- The representation of maximum unsigned values produced warnings on
5412 
some compilers (specifically, gcc with -Wtraditional).  (genarch.c)
5413 
	- Some string variables weren't declared const.  (echogs.c,
5414 
genarch.c)
5415 
	- The viewpbm utility was broken for pgm and ppm (but not pbm).
5416 
(bug introduced in 5.66) (lib/viewpbm.ps)
5417 
 
5418 
</pre><h3><a name="5.71_Drivers"></a>Drivers</h3><pre>
5419 
 
5420 
Fixes problems:
5421 
	- The X driver didn't handle TrueColor displays properly.
5422 
(gdevxcmp.h, gdevxcmp.c)
5423 
	- The alternative X drivers didn't implement get_bits properly.
5424 
(gdevxalt.c)
5425 
	- The X driver specified the byte order incorrectly for displays
5426 
with more than 8 bits per pixel.  (gdevx.c)
5427 
	- The X driver used the wrong number of bits for comparing colors on
5428 
visuals with fixed color maps.  (gdevxcmp.h, gdevxcmp.c)
5429 
	- Some symbols were multiply defined with -DNOPRIVATE.  (gdevbit.c)
5430 
	- If a file specified a paper size, rather than using the default,
5431 
the G3/G4 fax output drivers didn't adjust the width to a legal one for fax
5432 
systems.  (gdevtfax.c)
5433 
 
5434 
Segregates the resource lists, for which warnings about casting of const to
5435 
non-const string types should be suppressed, into a separate file.
5436 
(devs.mak, gdevx.h, gdevxini.c, gdevxres.c)
5437 
 
5438 
Splits off the code related to color mapping for X Windows, for greater
5439 
understandability.  (devs.mak, gdevx.h, gdevxcmp.h, gdevx.c, gdevxcmp.c,
5440 
gdevxini.c)
5441 
 
5442 
Changes code slightly to remove warnings about signed/unsigned integer
5443 
constants.  (gdevxalt.c)
5444 
 
5445 
Changes code to remove unused variables.  (gdevx.c, gdevxalt.c)
5446 
 
5447 
Adds a user-contributed driver for the H-P LaserJet 4D.  (devs.mak,
5448 
gdevdjet.c)
5449 
 
5450 
Makes the bitcmyk driver reset its map_cmyk_color procedure dynamically
5451 
according to the depth, allowing more efficient execution in the 1- and
5452 
8-bit cases.  (gdevbit.c)
5453 
 
5454 
Adds a settable option, AdjustWidth, to control whether the fax-format
5455 
drivers (faxg*, tiffcrle, tiffg*) adjust the page width to legal fax values.
5456 
Its default value is 1 (do adjust).  (devs.mak, gdevtfax.c)
5457 
 
5458 
Adds a ForceMono parameter to the bitcmyk/bitrgb devices to implement a
5459 
special monochrome-in-CMYK mode requested by a customer.  (gdevbit.c)
5460 
 
5461 
Removes the TRIM_ and EXPAND_BITS_TO_BYTES options from the bit devices,
5462 
since they are no longer needed.  (gdevbit.c)
5463 
 
5464 
</pre><h3><a name="5.71_Fonts"></a>Fonts</h3><pre>
5465 
 
5466 
Changes the substitution mechanism for condensed / narrow fonts, so that the
5467 
PDF interpreter can use it.  (lib/gs_fonts.ps)
5468 
 
5469 
</pre><h3><a name="5.71_Interpreter"></a>Interpreter</h3><pre>
5470 
 
5471 
Fixes problems:
5472 
	- The bind operator generated unaligned accesses and might not
5473 
operate reliably. (bug introduced in 5.70) (zmisc.c)
5474 
	- If the BuildChar procedure of a font included an image or
5475 
imagemask operator, charpath would (incorrectly) display the character.
5476 
(zimage.c)
5477 
 
5478 
Adds a bogus return statement to suppress a compiler warning.  (gs.c)
5479 
 
5480 
Changes code slightly to remove warnings about signed/unsigned integer
5481 
constants.  (store.h, ibnum.c)
5482 
 
5483 
Changes the build date format to %d-%02d-%02d.  (lib/gs_init.ps, imainarg.c)
5484 
 
5485 
Rearranges some code to add readline support.  (files.h, imain.c, zfileio.c,
5486 
ziodev.c)
5487 
 
5488 
Adds support for GNU readline, with several completion keys, contributed by
5489 
a user.  (int.mak, gs_rdlin.ps, gp_gnrdl.c)
5490 
 
5491 
Changes the font substitution machinery slightly so the PDF interpreter can
5492 
use it.  (lib/gs_fonts.ps)
5493 
 
5494 
</pre><h3><a name="5.71_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
5495 
 
5496 
Fixes problems:
5497 
	- In-line images caused a syntaxerror or stackunderflow.
5498 
(lib/pdf_draw.ps)
5499 
	- The font substitution mechanism didn't detect Condensed fonts.
5500 
(lib/pdf_font.ps)
5501 
	- The font substitution mechanism didn't use the intelligent
5502 
algorithm used for PostScript files.  (lib/pdf_font.ps)
5503 
 
5504 
Prints a message when substituting for a font on the basis of its
5505 
descriptor.  (lib/pdf_font.ps)
5506 
 
5507 
</pre><h3><a name="5.71_Streams"></a>Streams</h3><pre>
5508 
 
5509 
Adds an interface and default implementation for readline.  (srdline.h,
5510 
stream.h, stream.c)
5511 
 
5512 
</pre><h3><a name="5.71_Library"></a>Library</h3><pre>
5513 
 
5514 
Fixes problems:
5515 
	- A void procedure attempted to return a value.  (stream.c)
5516 
	- A pointer was declared with an extra *.  (gsmemory.c)
5517 
	- An argument would be stringified with traditional C.  (gdevdbit.c)
5518 
	- The check for validity of the CIE joint caches was wrong, leading
5519 
to incorrect output in some obscure cases.  (gsciemap.c)
5520 
	- A tiny rounding inaccuracy could cause an occasional blank line
5521 
when rendering adjacent images.  (gxipixel.c)
5522 
	- Some symbols were multiply defined with -DNOPRIVATE.  (gsptype2.h)
5523 
	- If a character was too large to be cached, it didn't use
5524 
anti-aliasing, even if TextAlphaBits was >1.  (gspaint.c)
5525 
 
5526 
Changes code slightly to remove warnings about signed/unsigned integer
5527 
constants.  (gsccode.h, gsmisc.c, gxcht.c)
5528 
 
5529 
Changes code to remove a warning about an unhandled case in a switch.
5530 
(gsstruct.h, gsmemory.c)
5531 
 
5532 
Changes code to remove unused variables.  (gxcindex.h, gdevdbit.c,
5533 
gdevprn.c, gxiscale.c)
5534 
 
5535 
Restructures the header files for the new text API, adding the SINGLE
5536 
options in text_params, enough new elements in text_enum to store all the
5537 
arguments of text_begin, and new elements in text_enum to hold results
5538 
returned by text_process.  This code is no longer "subject to [arbitrary]
5539 
change without notice", although it is still not very stable.  (gstext.h,
5540 
gxtext.h, gstext.c)
5541 
 
5542 
Changes code to remove warnings about uninitialized variables.  (gxipixel.c)
5543 
 
5544 
Changes the syntactic form of some constants yet again to suppress a
5545 
different set of compiler warnings.  (gxsample.c)
5546 
 
5547 
Adds a procedure to fix the charpath-in-BuildChar problem.  (gsimage.h,
5548 
gsimage.c, gsptype1.c)
5549 
 
5550 
Speeds up the handling of certain RasterOp cases for CMYK devices.
5551 
(gxdevice.h, gxdevmem.h, gdevdrop.c, gdevmem.c, gdevmr8n.c, gdevrops.c)
5552 
 
5553 
Adds a platform-specific interface for reading lines from stdin.  This is
5554 
intended primarily to support GNU readline.  (lib.mak, gp.h, gp_strdl.c)
5555 
 
5556 
</pre>
5557 
 
5558 
<hr>
5559 
 
5560 
<h2><a name="Version5.70"></a>Version 5.70 (internal) (2/20/99)</h2>
5561 
 
5562 
<p>
5563 
This fileset includes substantial changes to the interpreter in support of
5564 
making it fully reentrant (eliminating writable globals).
5565 
 
5566 
<h3><a name="5.70_Incompatible_changes"></a>Incompatible changes</h3><pre>
5567 
 
5568 
(Interpreter)
5569 
	- The ref_stack structure has been renamed ref_stack_t, and has been
5570 
changed substantially.  Clients should now access all of its members, other
5571 
than the pointers to the current block, through the macros or procedures
5572 
defined in istack.h.  The STACK_LOOP_{BEGIN,END} macros have been removed.
5573 
	- The argument of context_state_load is no longer const.
5574 
	- Each file's table of operator definitions is now limited to 16
5575 
entries.  op_def_table[] no longer exists: use op_index_def() instead.
5576 
	- invalid_file_entry now has an associated VM space,
5577 
avm_invalid_file_entry, that must be used in constructing invalid file refs.
5578 
	- restore will now undo binding of pseudo-operators.  Attempting to
5579 
bind a local pseudo-operator into a global procedure will cause an
5580 
invalidaccess error.
5581 
 
5582 
</pre><h3><a name="5.70_Documentation"></a>Documentation</h3><pre>
5583 
 
5584 
Updates the driver documentation a bit.  It probably still includes a lot of
5585 
out-of-date text.  (doc/Drivers.htm)
5586 
 
5587 
Improves the problem reporting form to make it absolutely clear that test
5588 
data are required, and that the problem must be reproducible without using a
5589 
viewer.  (doc/Bug-form.htm)
5590 
 
5591 
Documents the -dDOINTERPOLATE switch.  (doc/Use.htm)
5592 
 
5593 
Documents the difference between public and tester releases, in connection
5594 
with making tester releases available to everyone.  (doc/New-user.htm)
5595 
 
5596 
Updates the list of history files.  (doc/Readme.htm)
5597 
 
5598 
Adds a questionnaire for people who want to be notified of new test
5599 
releases.  (doc/Readme.htm, doc/Tester.htm)
5600 
 
5601 
</pre><h3><a name="5.70_Procedures"></a>Procedures</h3><pre>
5602 
 
5603 
Fixes problems:
5604 
	- A ! was missing before an include.  (bcwin32.mak, msvc32.mak)
5605 
	- A trailing \ in some macro definitions was quoted incorrectly.
5606 
(bcwin32.mak, msvc32.mak)
5607 
	- An editing error prevented a makefile from working.  (bcwin32.mak)
5608 
	- The 16-bit spooler executable didn't reference its icon correctly.
5609 
(gs16spl.rc)
5610 
	- The Watcom makefiles had gotten badly out of date.  (watc.mak,
5611 
watclib.mak, wccommon.mak)
5612 
	- Some DEVICE_DEVS lines were too long for the shell to handle.
5613 
(openvms.mmk)
5614 
	- A space was missing before a colon.  (openvms.mmk)
5615 
 
5616 
Updates MSVC support to handle version 6.  (msvc32.mak)
5617 
 
5618 
Extends genconf to handle function types as well as image types, and changes
5619 
the output for image types.  (genconf.c)
5620 
 
5621 
Desupports the use of CONFIG for selecting between multiple configurations,
5622 
since parameterized output directories do this better.  (bcwin32.mak,
5623 
dvx-gcc.mak, gs.mak, int.mak, lib.mak, msvc32.mak, msvclib.mak, openvms.mak,
5624 
openvms.mmk, os2.mak, ugcclib.mak, unix-gcc.mak, unixansi.mak, unixtrad.mak,
5625 
watc.mak, watclib.mak, watcw32.mak)
5626 
 
5627 
Adds a -dDOINTERPOLATE switch to force Interpolate in all images.
5628 
(lib/gs_init.ps)
5629 
 
5630 
</pre><h3><a name="5.70_Utilities"></a>Utilities</h3><pre>
5631 
 
5632 
Rewrites viewpcx to eliminate dependence on a special filter.
5633 
(lib/viewpcx.ps)
5634 
 
5635 
</pre><h3><a name="5.70_Drivers"></a>Drivers</h3><pre>
5636 
 
5637 
Fixes problems:
5638 
	- The [e]pswrite and pdfwrite drivers wrote out clipping paths using
5639 
the winding number rule even if the path had been set with eoclip.
5640 
(gdevpdfd.c, gdevvec.c)
5641 
	- Some occurrences of ushort should have been gx_color_value.
5642 
(gdevpbm.c)
5643 
	- A comment was accidentally left outside comment quotes.
5644 
(gdev3852.c)
5645 
	- There was a char/byte mismatch not covered by a cast.
5646 
(gdevdcrd.c)
5647 
	- There were still some references to the 'huge' keyword, which has
5648 
been superseded by FAR.  (gdevwdib.c)
5649 
	- Some obsolete references to which_colors hadn't been removed.
5650 
(gdevwdib.c)
5651 
	- The [e]pswrite driver produced incorrect output for a curveto or
5652 
closepath followed by a lineto and then a moveto.  (gdevps.c)
5653 
	- The [e]pswrite driver could produce incorrect output for paths
5654 
ending with a lineto.  (gdevps.c)
5655 
	- The name paper_sizes was used both by a driver and by other code,
5656 
causing a problem when building with -dNOPRIVATE.  (gdevclj.c)
5657 
 
5658 
Consolidates the X error handling statics into a structure.  (gdevxini.c)
5659 
 
5660 
Updates the pdfwrite driver to reflect the addition of state to the
5661 
ASCII85Encode filter.  (gdevpsdf.c)
5662 
 
5663 
Adds a user-contributed driver for the Lexmark 5700 printer (black-and-white
5664 
only).  (contrib.mak, gdevlxm.c)
5665 
 
5666 
Updates the mswinpr2 driver with a new, user-contributed one that includes
5667 
interaction with the user.  (gdevwpr2.c)
5668 
 
5669 
</pre><h3><a name="5.70_Fonts"></a>Fonts</h3><pre>
5670 
 
5671 
Fixes problems:
5672 
	- When TrueType support was present, the FONTPATH scanner didn't
5673 
recognize TrueType fonts whose 'type' was "true" rather than the documented
5674 
<00 01 00 00>.  (lib/gs_ttf.ps)
5675 
	- When DEBUG was set, loading a TrueType font could cause an
5676 
/undefined error.  (lib/gs_ttf.ps)
5677 
 
5678 
</pre><h3><a name="5.70_Interpreter"></a>Interpreter</h3><pre>
5679 
 
5680 
Fixes problems:
5681 
	- Local (pseudo-)operators could get bound into global procedures
5682 
with 'bind', causing dangling references.  Attempting this now causes an
5683 
invalidaccess error.  Fixing this also required making restore undo binding
5684 
of pseudo-operators.  (zmisc.c)
5685 
	- A harmless dictfull error occurring during language level
5686 
switching caused an error.  (zmisc2.c)
5687 
	- If given a closed input file, flushfile caused an error, rather
5688 
than doing nothing.  (zfileio.c)
5689 
 
5690 
Renames the ref_stack structure as ref_stack_t, and factors it so that the
5691 
parts set only at initialization are separated from the dynamic parts, in
5692 
support of moving the stacks from static to dynamic storage.  (icstate.h,
5693 
idebug.h, idstack.h, iestack.h, iostack.h, iparam.h, iparray.h, istack.h,
5694 
idebug.c, interp.c, iparam.c, istack.c, zcontext.c, zpacked.c, zvmem.c)
5695 
 
5696 
Moves the dynamic part of the stacks in-line in the context structure; gets
5697 
rid of the statically allocated stacks.  (dstack.h, estack.h, icontext.h,
5698 
icstate.h, idstack.h, iestack.h, interp.h, iostack.h, ostack.h, icontext.c,
5699 
iinit.c, interp.c, zcontext.c)
5700 
 
5701 
Packages the dictionary lookup statistics in a structure, like the other
5702 
statistics.  (idict.c)
5703 
 
5704 
Changes from dynamic to static initialization of the function type table.
5705 
(int.mak, ifunc.h, iconf.c, zfunc.c, zfunc0.c, zfunc3.c)
5706 
 
5707 
Removes the PCXDecode filter.  (zfilterx.c)
5708 
 
5709 
Removes more writable statics.  (int.mak, btoken.h, files.h, icstate.h,
5710 
igstate.h, ipacked.h, iscan.h, icontext.c, imain.c, iscan.c, iscanbin.c,
5711 
zbseq.c, zcolor2.c, zcontext.c, zgstate.c, ziodev.c, zmath.c, zpcolor.c,
5712 
zpacked.c)
5713 
 
5714 
Changes the representation of the operator table to avoid allocating a
5715 
dynamic copy.  This introduces a limit of 16 entries per definition set.
5716 
(int.mak, opdef.h, iconf.c, idebug.c, iinit.c, interp.c, iutil.c,
5717 
zcontext.c, zcontrol.c, zdict.c, zfileio.c, zgstate.c, ztype.c)
5718 
 
5719 
Includes the ASCII85Decode filter in all configurations, for simplicity.
5720 
(iscan.c, zfdecode.c)
5721 
 
5722 
Makes the invalid file reference point to a static object.  (files.h,
5723 
icontext.c, zfile.c, ziodev.c)
5724 
 
5725 
Changes all dictfull error returns from the dictionary code to use
5726 
return_error.  This should have been done a long time ago!  (idict.c)
5727 
 
5728 
Increases the predefined size of systemdict a little more because .upp files
5729 
may define a lot of new entries.  (iinit.c)
5730 
 
5731 
Adds a few more interpreter statistics.  (interp.c)
5732 
 
5733 
</pre><h3><a name="5.70_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
5734 
 
5735 
Fixes problems:
5736 
	- Images never closed the data stream, placing a heavy load on the
5737 
garbage collector to clean up streams and stream states.  (lib/pdf_draw.ps)
5738 
	- Streams stored on external files didn't work.  (lib/pdf_base.ps)
5739 
 
5740 
Reorganizes code slightly to allocate less memory for in-line images.
5741 
(lib/pdf_draw.ps)
5742 
 
5743 
Speeds up some common operations a little.  (lib/pdf_base.ps)
5744 
 
5745 
</pre><h3><a name="5.70_Streams"></a>Streams</h3><pre>
5746 
 
5747 
Removes the PCXDecode filter.  (spcxx.h [deleted], spcxd.c [deleted])
5748 
 
5749 
Changes the name of a variable for greater clarity.  (stream.c)
5750 
 
5751 
Splits off the ASCII85Decode filter into a separate file, since it turns out
5752 
to be convenient to include it in all configurations.  (sa85d.h, sa85x.h,
5753 
sa85d.c, sfilter2.c)
5754 
 
5755 
Makes an initialization entry point available for non-heap-allocated
5756 
streams.  (stream.h, stream.c)
5757 
 
5758 
Changes the ASCII85Encode filter so it always produces lines of at most 80
5759 
characters, not counting the EOD marker.  THIS IS A NON-BACKWARD-COMPATIBLE
5760 
CHANGE, because this filter now needs a state structure, which it didn't
5761 
before.  (sa85x.h, sfilter2.c)
5762 
 
5763 
</pre><h3><a name="5.70_Library"></a>Library</h3><pre>
5764 
 
5765 
Fixes problems:
5766 
	- Reference counting of graphics state elements was wrong when
5767 
creating multiple contexts, causing memory corruption. (bug probably
5768 
introduced in 5.68) (gsstate.c)
5769 
	- If CIE joint caches were created because the reference count of
5770 
the existing caches was >1, the new caches weren't initialized correctly.
5771 
(bug introduced in 5.60, found by Ray Johnston.)  (gscie.c)
5772 
	- If Margins are set so that part of the default clipping region
5773 
lies outside the ((0,0),(width,height)) device coordinate space, the fast
5774 
case of images could cause a memory access error.  (gxifast.c)
5775 
	- In the case of a halftone with more bits than levels,
5776 
gx_check_tile_cache could incorrectly return false, causing images to render
5777 
more slowly than they should.  (gzht.h, gxht.c)
5778 
	- There was a const mismatch between an argument and the formal
5779 
parameter.  (gdevprn.h, gdevprn.c, gxclread.c)
5780 
	- An error in the definition of st_imager_state_num_ptrs caused the
5781 
garbage collector to omit marking one pointer in imager states, possibly
5782 
causing memory corruption.  (gxistate.h)
5783 
	- The bbox device, used with no target, didn't properly handle
5784 
images where more data was provided than needed.  (gdevbbox.c)
5785 
 
5786 
Removes any pretense of supporting multiple threads in a single-threaded
5787 
environment.  Dummy synchronization primitives, however, are still provided.
5788 
(gp_nsync.c)
5789 
 
5790 
Removes more writable statics.  (gximage.h, gxi12bit.c, gxino12b.c,
5791 
gxipixel.c)
5792 
 
5793 
Changes the handling of image types, and adds similar handling for function
5794 
types.  (gscdefs.h, gconf.c)
5795 
 
5796 
Consolidates the gs_std* files into a structure.  (gsio.h, gsmisc.c)
5797 
 
5798 
Speeds up the fastest (common) case of clipping fill_rectangle and copy_mono
5799 
operations.  We could do the same for the other operations if we wanted.
5800 
(gxclip.c)
5801 
 
5802 
Identifies this fileset as a tester release.  (gscdef.c)
5803 
 
5804 
</pre>
5805 
 
5806 
<hr>
5807 
 
5808 
<h2><a name="Version5.69"></a>Version 5.69 (internal) (2/4/99)</h2>
5809 
 
5810 
<p>
5811 
This incremental fileset fixes minor compilation problems, as well as many
5812 
problems with driver-based CRDs (not used by PostScript or PDF).
5813 
 
5814 
<h3><a name="5.69_Procedures"></a>Procedures</h3><pre>
5815 
 
5816 
Fixes problems:
5817 
	- The OpenVMS makefile had not been updated properly to reflect the
5818 
division of files into subdirectories.  (openvms.mak)
5819 
	- A space was missing before a :.  (devs.mak)
5820 
	- The MMK makefile had not been updated to reflect the renaming of
5821 
the psm[raw] devices to pksm[raw].  (openvms.mmk)
5822 
 
5823 
Changes the default name of the build directory for the library test program
5824 
from debugobj to libobj, so that one can work with both library and
5825 
interpreter builds without interference.  (ugcclib.mak)
5826 
 
5827 
Adds -fno-builtin to the gcc switches, to detect failure to declare
5828 
functions like memcpy, at a small cost in performance.  (ugcclib.mak,
5829 
unix-gcc.mak)
5830 
 
5831 
</pre><h3><a name="5.69_Utilities"></a>Utilities</h3><pre>
5832 
 
5833 
Makes a couple of minor fixes to ansi2knr, suggested by users.  (ansi2knr.c)
5834 
 
5835 
Updates ps2ai.ps with an improved version from its author.  (lib/ps2ai.ps)
5836 
 
5837 
</pre><h3><a name="5.69_Drivers"></a>Drivers</h3><pre>
5838 
 
5839 
Fixes problems:
5840 
	- The 32-bit CMYK "async" BMP driver was declared incorrectly as a
5841 
non-async device.  (gdevbmpa.c)
5842 
	- Some #includes were missing, because gcc didn't warn about
5843 
failures to declare certain standard functions.  (x_.h, gdevdcrd.c, gdevx.c)
5844 
	- The PC frame buffer device still referred to _ss and near.
5845 
(gdevpcfb.c)
5846 
	- The [e]pswrite driver didn't handle bitmaps with a non-zero X bit
5847 
offset correctly.  (gdevps.c)
5848 
	- The pdfwrite driver wrote all clipping paths with the winding
5849 
number rule, even if they were established by eoclip.  (gdevpdfd.c)
5850 
	- "Vector" drivers wrote all clipping paths with the winding number
5851 
rule, even if they were established by eoclip.  (gdevvec.c)
5852 
 
5853 
Adds the CRDName parameter to the sample driver-based CRD.  (gdevdcrd.c)
5854 
 
5855 
Tweaks the sample driver-based CRD to make it a more realistic (closer to
5856 
the PostScript default).  (gdevdcrd.c)
5857 
 
5858 
Adds the sample driver-based CRD to the modified X drivers.  (devs.mak,
5859 
gdevxalt.c)
5860 
 
5861 
</pre><h3><a name="5.69_Interpreter"></a>Interpreter</h3><pre>
5862 
 
5863 
Fixes problems:
5864 
	- Some #includes were missing, because gcc didn't warn about
5865 
failures to declare certain standard functions.  (zchar1.c)
5866 
	- Driver CRDs were not supported properly.  (zcrd.c, lib/gs_lev2.ps)
5867 
 
5868 
Changes some code because non-int switch expressions are not handled
5869 
correctly in pre-ANSI C.  (igcref.c, zdevice.c)
5870 
 
5871 
Adds the ability to set the orientation of zero-length "dots".  (zgstate.c)
5872 
 
5873 
Adds comments on an alternative shallow-binding design.  (dstack.h)
5874 
 
5875 
Changes the threshold for repeatedly rescanning change lists so that it is
5876 
based on the cumulative amount of rescanning and not the amount in a single
5877 
pass.  (isave.c)
5878 
 
5879 
</pre><h3><a name="5.69_Streams"></a>Streams</h3><pre>
5880 
 
5881 
Changes some code because non-int switch expressions are not handled
5882 
correctly in pre-ANSI C.  (sfilter1.c)
5883 
 
5884 
</pre><h3><a name="5.69_Library"></a>Library</h3><pre>
5885 
 
5886 
Fixes problems:
5887 
	- Some casts to (gx_device *) were missing.  (gschar.c)
5888 
	- Some #includes were missing, because gcc doesn't warn about
5889 
failures to declare certain standard functions.  (gdevdgbr.c, gscie.c,
5890 
gsmatrix.c, gxshade1.c)
5891 
	- gxclread.c now needs gdevprn.h to declare certain procedures.  We
5892 
tried very hard to make the command list machinery not depend on anything
5893 
related to printer devices, but at this point we have not succeeded.
5894 
(gxclread.c)
5895 
	- For CRDs set by library clients, the is_identity flags in the
5896 
caches were set incorrectly, producing incorrect output.  (gscie.h, gscie.c,
5897 
gscrd.c, gscrdp.c)
5898 
	- For CRDs set by library clients, the EncodeABC and RenderTable T
5899 
procedures were sampled incorrectly.  (gsciemap.c, gscrd.c)
5900 
	- The interpreter tried to sample the TransformPQR functions in the
5901 
PostScript CRD even for driver CRDs.  (gscie.h, gscie.c)
5902 
	- Library assistance was needed for the interpreter to support
5903 
driver CRDs properly.  (gscrdp.h, gscrdp.c)
5904 
	- The procedures that accessed cached CIE values didn't round the
5905 
index, so accessing already-cached values could wipe out the cache.
5906 
(gscie.c)
5907 
	- The procedure that accessed cached RenderTable.T values simply
5908 
wasn't implemented.  (gscrd.c)
5909 
 
5910 
Adds an "if (1)" to a macro to suppress "statement not reached" warnings
5911 
from stupid compilers.  (gsmemlok.c)
5912 
 
5913 
Changes the syntactic form of some constant tables to suppress
5914 
signed/unsigned warning messages.  (gsbitops.c, gxsample.c)
5915 
 
5916 
Changes some switch statements to if/else because non-int switch expressions
5917 
are not handled correctly in pre-ANSI C.  (gdevmr8n.c, gxdcolor.c)
5918 
 
5919 
Adds the ability to set the orientation of zero-length "dots".  (gsline.h,
5920 
gxline.h, gsline.c, gsstate.c, gxstroke.c)
5921 
 
5922 
Adds an allocator state variable to support the change in the rescanning
5923 
algorithm.  (gxalloc.h)
5924 
 
5925 
</pre>
5926 
 
5927 
<hr>
5928 
 
5929 
<h2><a name="Version5.68"></a>Version 5.68 (internal) (1/29/99)</h2>
5930 
 
5931 
<p>
5932 
This fileset implements PatternType 2 (gradient fill) Patterns.  All
5933 
significant PostScript LanguageLevel 3 features are now implemented, except
5934 
for DeviceN color spaces.  We have also verified that the MMK script for
5935 
OpenVMS also works with MMS.
5936 
 
5937 
<p>
5938 
Note that there are significant non-backward compatible changes to memory
5939 
management for device instances: we are sorry about this, but just as with
5940 
paths in 5.22, we had to fix this design problem at some point.
5941 
 
5942 
<h3><a name="5.68_Incompatible_changes"></a>Incompatible changes</h3><pre>
5943 
 
5944 
(Procedures)
5945 
	- A new makefile, unix-aux.mak, must be included in all Unix
5946 
top-level makefiles.  (It is included in the ones we distribute.)
5947 
unixtail.mak is renamed unixlink.mak.
5948 
 
5949 
(Library)
5950 
	- The names of the anti-aliasing parameters in the device color_info
5951 
structure have been changed.
5952 
	- Dummy definitions for PC-specific C keywords (_cs, _ds, _ss, near,
5953 
far, huge) are no longer provided: these keywords should be removed from
5954 
non-PC-specific code.
5955 
	- The names of the alignment_mod, ptr_le, ptr_lt, ptr_ge, ptr_gt,
5956 
and ptr_between macros have been changed to upper case (ALIGNMENT_MOD etc.)
5957 
	- gs_make_null_device now takes an additional argument.
5958 
	- The ccolor member of a gx_device_color is no longer inside a
5959 
substructure.
5960 
	- Clients now must initialize Pattern templates with
5961 
gs_patternN_init, where N is the PatternType (normally 1), before filling in
5962 
the members.
5963 
	- gs_pattern_instance_common_t is renamed gs_pattern_instance_t;
5964 
gs_pattern_instance is renamed gs_pattern1_instance.
5965 
	- To set the target of a forwarding device, you must now use
5966 
gx_device_set_target rather than setting the target member directly.
5967 
	- Memory management for devices has changed substantially, and in a
5968 
subtle way.  If you have code that calls the library, please read the
5969 
documentation in gxdevcli.h.
5970 
	- Callers of the driver create_buf_device procedure must always call
5971 
it through gdev_create_buf_device, never directly.
5972 
	- For composite and CID-keyed fonts, the character code returned by
5973 
gs_show_current_char and gs_kshow_previous_char is now the full multi-byte
5974 
character code rather than just the last byte of the code.
5975 
	- gdev_cmap_set_method has been replaced by a device parameter,
5976 
ColorMappingMethod.
5977 
	- The CRD pointer parameter for param_write_cie_render1 and
5978 
param_put_cie_render1 is no longer const.
5979 
 
5980 
</pre><h3><a name="5.68_Documentation"></a>Documentation</h3><pre>
5981 
 
5982 
Fixes problems:
5983 
	- The documentation for resize_object and resize_string didn't allow
5984 
the new size to be the same as the old size, didn't describe what data was
5985 
preserved, and didn't guarantee to return the same object if the new size
5986 
was the same as the old size.  (gsmemraw.h, gsmemory.h)
5987 
	- The documentation for the value returned by the internal
5988 
.getmetrics32 operator was incorrect.  (zchar32.c)
5989 
	- The documentation for the special color mapping device didn't say
5990 
that the caller had to call gs_setdevice_no_init to update graphics states.
5991 
(gdevcmap.h)
5992 
 
5993 
Notes that OPENVMS.MMK works with both MMK and MMS.  (doc/Make.htm)
5994 
 
5995 
Adds a note to the C style guide about nested vs. multi-branch 'if'
5996 
statements.  (doc/C-style.htm)
5997 
 
5998 
Notes that the multi-threaded ("async") drivers require libc version 6 or
5999 
higher under Linux.  (doc/Make.htm)
6000 
 
6001 
Notes additional Irix/MIPSpro combinations that compile idict.c incorrectly,
6002 
and gives a workaround.  (doc/Make.htm)
6003 
 
6004 
Adds a couple more acknowledgements.  (doc/Helpers.htm)
6005 
 
6006 
Documents the new -Z^ switch.  (doc/Use.htm)
6007 
 
6008 
Documents the new rules about memory management for device instances
6009 
(gxdevcli.h, gxdevice.h)
6010 
 
6011 
</pre><h3><a name="5.68_Procedures"></a>Procedures</h3><pre>
6012 
 
6013 
Fixes problems:
6014 
	- The "async" BMP devices were accidentally included in the default
6015 
list for Unix, leading to a requirement for the POSIX thread package, which
6016 
is not available on all systems.  (unix-gcc.mak)
6017 
	- There was a minor typo in the new MMK script.  (openvms.mmk)
6018 
	- The MMK script redefines macros, which MMS does not allow.
6019 
(openvms.mmk)
6020 
	- The gcc version test used gcc rather than $(CC) for the compiler
6021 
name.  (unix-gcc.mak)
6022 
	- There was a minor typo in the pcx2up device makefile entry.
6023 
(devs.mak)
6024 
	- Some commands in the Unix install rules referenced sh rather than
6025 
$(SHELL).  (unixinst.mak)
6026 
 
6027 
Makes (dummy) in-RIP trapping an optional feature, and removes it from the
6028 
default configuration.  (int.mak, lib.mak)
6029 
 
6030 
Splits off the build rules for the Unix auxiliary programs, so they can be
6031 
shared between interpreter and library configurations.  (ugcclib.mak,
6032 
unix-aux.mak, unix-gcc.mak, unixansi.mak, unixtail.mak [deleted],
6033 
unixlink.mak, unixtrad.mak)
6034 
 
6035 
Adds the bitcmyk device to the list of devices for the library test program.
6036 
(ugcclib.mak)
6037 
 
6038 
</pre><h3><a name="5.68_Utilities"></a>Utilities</h3><pre>
6039 
 
6040 
Fixes problems:
6041 
	- ansi2knr didn't handle occurrences of '/' or quoted strings inside
6042 
an argument list correctly.  (ansi2knr.c)
6043 
 
6044 
At the suggestion of a GNU person, makes ansi2knr check for output errors.
6045 
(ansi2knr.c)
6046 
 
6047 
</pre><h3><a name="5.68_Drivers"></a>Drivers</h3><pre>
6048 
 
6049 
Fixes problems:
6050 
	- Setting the resolution on the SPARCprinter didn't work.
6051 
(gdevsppr.c)
6052 
	- Even in PDF 1.1 compatibility mode, the PDF writer used a
6053 
predictor to compress images.  (gdevpsdi.c)
6054 
	- Reference counting for devices was not implemented consistently.
6055 
(gdevxalt.c)
6056 
	- gcc (again) missed some static / non-static inconsistencies.
6057 
(gdevbmpa.c, gdevifno.c)
6058 
 
6059 
Removes all remaining uses of segment identifiers (_cs, _ds, _ss) from
6060 
non-PC-specific code.  (gdev3852.c, gdevcdj.c, gdevhl7x.c, gdevl256.c,
6061 
gdevmgr.c, gdevsgi.c, gdevsppr.c, gdevvglb.c)
6062 
 
6063 
Removes all remaining uses of the 'near' keyword from non-PC-specific code.
6064 
(gdevcd8.c, gdevcdj.c, gdevcgm.c)
6065 
 
6066 
Changes uses of round_up to ROUND_UP.  (gdevmsxf.c, gdevpcx.c, gdevpx.c,
6067 
gdevxxf.c)
6068 
 
6069 
Adds user-contributed support for 16-bit displays to the MS Windows driver.
6070 
(gdevmswn.c, gdevwdib.c)
6071 
 
6072 
Adds a user-contributed driver (sunhmono) for the Harlequin variant of 1-bit
6073 
Sun raster files.  We expect to add other varieties of Sun Raster file
6074 
eventually as well.  (contrib.mak, gdevsunr.c)
6075 
 
6076 
Adds a user-contributed driver (fs600) for the Kyocera FS-600 laser printer.
6077 
(devs.mak, gdevdjet.c)
6078 
 
6079 
Replaces the sample device CRD with a slightly hacked version of the default
6080 
PostScript CRD, and moves it to a separate file for greater flexibility in
6081 
testing.  (gdevdcrd.h, gdevbit.c, gdevdcrd.c)
6082 
 
6083 
Adds standard and "async" 32-bit CMYK BMP drivers (even though this is
6084 
outside the published BMP format).  (gdevbmp.c, gdevbmpa.c)
6085 
 
6086 
Changes the names of the separated-CMYK PBM drivers from psm to pksm, to be
6087 
more descriptive.  (devs.mak, openvms.mak, unix-gcc.mak, gdevpbm.c)
6088 
 
6089 
</pre><h3><a name="5.68_Platforms"></a>Platforms</h3><pre>
6090 
 
6091 
Fixes problems:
6092 
	- On MS Windows and OS/2, "(%stdin) (r) file bytesavailable" caused
6093 
a crash.  (gp_msio.c, gp_os2.c)
6094 
 
6095 
</pre><h3><a name="5.68_Fonts"></a>Fonts</h3><pre>
6096 
 
6097 
Fixes problems:
6098 
	- TrueType fonts with fewer glyph names in post than entries in loca
6099 
caused an error.  (gs_ttf.ps)
6100 
 
6101 
Adds additional tracing to the TrueType font loader.  (lib/gs_ttf.ps)
6102 
 
6103 
Per Adobe, adds the Euro symbol under the name /Euro (capitalized) to
6104 
various built-in Encodings.  (lib/gs_mro_e.ps, lib/gs_pdf_e.ps,
6105 
lib/gs_sym_e.ps, lib/gs_wan_e.ps)
6106 
 
6107 
</pre><h3><a name="5.68_Interpreter"></a>Interpreter</h3><pre>
6108 
 
6109 
Fixes problems:
6110 
	- An extraneous file got left in the fileset.  (lib/pdf_main.ps.sav
6111 
[deleted])
6112 
	- The number of required arguments for .pathbbox was incorrectly
6113 
specified as 0 rather than 1.  (zpath1.c)
6114 
	- Opening a ReusableStreamDecode filter with a string source and no
6115 
decoding filters left an extra value on the stack.  (lib/gs_ll3.ps)
6116 
	- Type 32 fonts sometimes didn't display the characters, or
6117 
displayed them offset.  (lib/gs_typ32.ps)
6118 
	- In LanguageLevel 3, copypage still called EndPage with 1 rather
6119 
than 0.  (lib/gs_init.ps)
6120 
	- The HalftoneName parameter was missing from the trapping parameter
6121 
set.  (lib/gs_ll3.ps)
6122 
	- CMap character entries were processed in the wrong order.
6123 
(lib/gs_cmap.ps)
6124 
	- CMap'ed non-CID fonts didn't work properly, because they called
6125 
BuildChar with the original character code rather than BuildGlyph with the
6126 
mapped glyph.  (zchar.c)
6127 
	- Using an out-of-range CID value with a CIDFont caused an error
6128 
rather than substituting a notdef.  (lib/gs_cidfn.ps)
6129 
	- CIDFontType 0 fonts with a GlyphDirectory didn't fall back to the
6130 
indexed character data if the CID wasn't in the GlyphDirectory.
6131 
(lib/gs_cidfn.ps)
6132 
	- CIDFontType 0 fonts didn't substitute a notdef at all.
6133 
(lib/gs_cidfn.ps)
6134 
 
6135 
Changes uses of round_up to ROUND_UP.  (igcstr.c)
6136 
 
6137 
Updates clients for the object-oriented changes to Patterns.  (zcolor2.c,
6138 
zpcolor.c)
6139 
 
6140 
Implements the rest of PatternType 2.  (ipcolor.h, zpcolor.c, zshade.c)
6141 
 
6142 
Makes in-RIP trapping an optional feature.  (lib/gs_ll3.ps, lib/gs_trap.ps)
6143 
 
6144 
Updates clients for the change in gs_show_current_char.  (zcfont.c, zchar.c)
6145 
 
6146 
Changes the dict_*_param macros to procedures, for easier tracing.  This
6147 
includes a change in the return value of dict_matrix3_param.  (icie.h,
6148 
zcie.c, zcrd.c)
6149 
 
6150 
</pre><h3><a name="5.68_Streams"></a>Streams</h3><pre>
6151 
 
6152 
Changes uses of round_up to ROUND_UP.  (scfd.c, scfe.c)
6153 
 
6154 
</pre><h3><a name="5.68_Library"></a>Library</h3><pre>
6155 
 
6156 
Fixes problems:
6157 
	- Once again, gcc failed to flag a static procedure declaration
6158 
followed by a non-static definition.  (gdevprna.c, gximage3.c)
6159 
	- Anti-aliasing no longer worked for the x11alpha device.  To fix
6160 
this, we factored out the anti-aliasing information in the
6161 
gx_device_color_info structure.  (bug introduced in 5.65) (gxdevcli.h,
6162 
gdevabuf.c, gdevdflt.c, gdevxalt.c, gsdparam.c)
6163 
	- An empty declaration generated an extraneous semicolon.
6164 
(gxclip2.h)
6165 
	- Some macros that generated an if-else construct didn't enclose it
6166 
in BEGIN/END, possibly leading to incorrect parsing.  (gxobj.h)
6167 
	- A comment was missing a closing */.  (gxpageq.h)
6168 
	- The handling of the phase in Pattern filling was broken again.  We
6169 
probably broke it with the "fix" introduced in 5.24.  (gxp1fill.c)
6170 
	- Looking up an undefined IODevice name caused a memory access
6171 
error.  (bug claimed to be fixed in 5.24) (gsiodev.c)
6172 
	- The null device installed for stringwidth didn't copy the color
6173 
mapping information from its target, causing confusion if the current device
6174 
was a pattern accumulator.  (gxdevcli.h, gxdevice.h, gschar.c, gsdevice.c,
6175 
gxpcmap.c)
6176 
	- mem_mapped2_copy_mono produced incorrect results for byte-aligned
6177 
rectangles exactly 1 byte wide (fix from John D.), and could also access
6178 
data 1 byte beyond the end of each source row.  (gdevm2.c)
6179 
	- In the case of a masked image or a RasterOp involving a Pattern,
6180 
the garbage collector could fail to follow a pointer, possibly causing
6181 
memory corruption.  (gsdcolor.h)
6182 
	- Assigning a double value to a float variable caused an infinite
6183 
recursion.  (gxshade1.c)
6184 
	- Failure to detect when the region being filled had become very
6185 
small caused excessive recursion.  (gxshade4.c)
6186 
	- The default implementations of resize_object didn't always return
6187 
the old object if the old and new sizes were the same.  (gsalloc.c,
6188 
gsmalloc.c)
6189 
	- The left side bearing of TrueType characters was sometimes
6190 
calculated incorrectly.  (gstype42.c)
6191 
	- The TrueType renderer disregarded the left side bearing values.
6192 
We aren't sure that the change we made is right, but it seems to produce
6193 
better output.  (gstype42.c)
6194 
	- Shadings used the first Decode entry for both X and Y values.
6195 
(gxshade.c)
6196 
	- Function-based Shadings sometimes omitted part of their output.
6197 
(gxshade1.c)
6198 
	- Function-based Shadings didn't access 4-bit-per-sample data
6199 
correctly.  (gsfunc0.c)
6200 
	- The malloc/free-based allocator didn't finalize objects when
6201 
freeing them.  (gsmalloc.c)
6202 
	- Reference counting for device instances was not implemented even
6203 
close to consistently.  THIS IS THE BUG TAIL WE WORRIED ABOUT IN 5.24.
6204 
(gxdevcli.h, gxdevice.h, gdevbbox.c, gdevcmap.c, gdevmem.c, gdevnfwd.c,
6205 
gdevplnx.c, gdevprn.c, gdevrops.c, gsalphac.c, gschar.c, gsdevice.c,
6206 
gsropc.c, gxidata.c, gxmclip.c, gxipixel.c, gxpcmap.c)
6207 
	- Some device structure definitions failed to include finalization.
6208 
(gdevmrop.h, gsstruct.h, gxclip2.h, gxcpath.h, gxdevmem.h, gxmclip.h)
6209 
	- Reference counting for the device halftone wasn't correct in the
6210 
band rasterizer.  This must be a recently introduced bug, because otherwise
6211 
banding couldn't have worked.  (gxclrast.c)
6212 
	- When banding, high-level images that extended off the page in the
6213 
Y direction caused memory access errors.  (gxclimag.c)
6214 
	- [a]widthshow didn't use the correct value for comparison for
6215 
composite fonts with FMapType 9 (CMap).  (gxchar.h, gschar.c, gschar0.c,
6216 
gsfcmap.c)
6217 
	- The special color mapping device only worked for
6218 
device_cmap_monochrome.  (gdevcmap.h, gdevcmap.c)
6219 
	- The definition of gs_memory_locked_release was wrong.
6220 
(gsmemlok.h, gsmemlok.c)
6221 
	- An opaque structure definition (for gx_device) was missing,
6222 
creating a need for an otherwise unnecessary #include. (gscrdp.h)
6223 
	- Certain cached values weren't computed when needed.  Fixing this
6224 
required removing 'const' from a parameter type.  (gscrdp.h, gscrdp.c)
6225 
	- gxclmem.c #included "gsmalloc.h", which is no longer needed.
6226 
(gxclmem.c)
6227 
	- Memory management for device halftones was incorrect, leading to
6228 
objects being freed twice or other memory corruption during band rendering.
6229 
(gzht.h, gsht.c, gsstate.c, gxclrast.c, gxistate.c)
6230 
	- Setting a driver-originated CRD didn't invalidate cached
6231 
information, leading to incorrect output.  (gscrdp.c)
6232 
	- A consistency check on driver-originated CRDs was incorrect,
6233 
causing valid CRDs to be rejected.  (gscrdp.c)
6234 
 
6235 
Removes dummy definitions for old PC-specific language extensions.
6236 
(stdpre.h)
6237 
 
6238 
Removes uses of the PC-specific 'huge' keyword.  (gdevmem.c)
6239 
 
6240 
Removes uses of the PC-specific 'near' keyword.  (gdevabuf.c, gdevbbox.c)
6241 
 
6242 
Changes the pointer comparison macros to upper-case names.  (gxalloc.h,
6243 
stdpre.h, gsalloc.c, gsmisc.c)
6244 
 
6245 
Changes the alignment_mod macro to upper case.  (stdpre.h, gdevdbit.c,
6246 
gdevdgbr.c, gsparams.c, gxifast.c)
6247 
 
6248 
Changes the round_up and round_down macros to upper case.  We retain the
6249 
lower-case definitions for the sake of the PCL code.  (gxfcache.h, gxobj.h,
6250 
stdpre.h, gdevalph.c, gdevmem.c, gsalloc.c, gspath1.c, gxccman.c,
6251 
gxclimag.c, gxifast.c)
6252 
 
6253 
Makes Pattern colors more object-oriented, to support PatternType 2,
6254 
splitting gsptype1.c off from gspcolor.c in the process.  (gsccolor.h,
6255 
gsdcolor.h, gspcolor.h, gsptype1.h, gsptype2.h, gxcolor2.h, gxpcolor.h,
6256 
gspcolor.c, gsptype1.c, gxpcmap.c)
6257 
 
6258 
Implements PatternType 2.  (gspcolor.h, gsptype1.h, gsptype2.h, gxcolor2.h,
6259 
gxpcolor.h, gxshade.h, gspcolor.c, gsptype2.c)
6260 
 
6261 
Changes the interface to shaded filling to make filling rectangles more
6262 
efficient.  (gsshade.h, gscolor3.c, gsshade.c)
6263 
 
6264 
Improves some macros that didn't handle expressions as arguments.
6265 
(gsrect.h)
6266 
 
6267 
Improves tracing of loading the CIE caches.  (gscie.c)
6268 
 
6269 
Cleans up some formatting, and replaces some floating point divides with
6270 
multiplies.  (gstype42.c)
6271 
 
6272 
Adds default values for the MaxSeparations (1), Separations (false), and
6273 
SeparationColorNames (empty array) device parameters.  (gsdparam.c)
6274 
 
6275 
Adds -Z^ to trace reference counting.  (gsrefct.h, gsmemory.c)
6276 
 
6277 
Changes the definition of finalization so that finalization procedures *can*
6278 
assume that objects they reference still exist.  This is necessary so that
6279 
forwarding devices can decrement the reference counts of their targets.
6280 
Fortunately, all invocations of finalization (in 'restore', the garbage
6281 
collector, and freeing) already have this property.  (gsstruct.h)
6282 
 
6283 
Extends CRD initialization so that cached values may be copied from an
6284 
existing CRD.  (gscrd.h, gscrd.c)
6285 
 
6286 
Adds a wrapper to the driver create_buf_device procedure to increment the
6287 
reference count, so that buffer devices can be freely used in graphics
6288 
states and as a target.  (gxdevcli.h, gdevprn.c, gxclread.c)
6289 
 
6290 
Removes recursion from the shading rendering code, in preparation for making
6291 
it interruptible (required for DeviceN color mapping callouts).
6292 
(gxshade4.h, gxshade1.c, gxshade4.c, gxshade6.c)
6293 
 
6294 
Monitor-locks the default allocator based on the C heap, if multi-threading
6295 
is being supported at all.  (lib.mak, gsmalloc.h, gsmalloc.c)
6296 
 
6297 
Speeds up the implementation of mem_true32_copy_mono for the common case.
6298 
(gdevm32.c)
6299 
 
6300 
Adds a (disabled) option for defining gx_color_index as a pointer or a
6301 
structure, for testing.  (gxcindex.h)
6302 
 
6303 
Makes the library test program test the special color mapper more
6304 
thoroughly.  (gslib.c)
6305 
 
6306 
</pre>
6307 
 
6308 
<hr>
6309 
 
6310 
<h2><a name="Version5.67"></a>Version 5.67 (internal) (1/8/99)</h2>
6311 
 
6312 
<p>
6313 
This fileset adds more PostScript LanguageLevel 3 capability:
6314 
<ul>
6315 
<li>	- Complete implementation of shfill.
6316 
<li>	- Most of the expanded CMap capabilities.
6317 
<li>	- ReusableStreamDecode filter.
6318 
<li>	- FontType 2 for CFFs (formerly done in an incompatible way).
6319 
<li>	- HalftoneMode user parameter.
6320 
<li>	- HalftoneTypes 6, 10, and 16.
6321 
<li>	- ImageType 3 images.
6322 
<li>	- UseCIEColor device parameter.
6323 
</ul>
6324 
 
6325 
<p>
6326 
It also adds a build script for MMK (which may also work with MMS) under
6327 
OpenVMS, and Uli Wortmann's drivers for the H-P color inkjet printers.
6328 
Among other bug fixes, it eliminates about half the "possibly uninitialized
6329 
variable" compiler warnings.
6330 
 
6331 
<h3><a name="5.67_Incompatible_changes"></a>Incompatible changes</h3><pre>
6332 
 
6333 
(Library)
6334 
	- The default UCR and BG functions are now f(k) = k rather than f(k)
6335 
= 0.
6336 
	- The set_[d]fmul2fixed_vars macros have been removed from
6337 
gxfixed.h.  Clients must use the new CHECK/FINISH_[D]FMUL2FIXED_VARS macros.
6338 
(We don't think there are any such clients outside Ghostscript itself.)
6339 
	- The internal procedure gx_cpath_intersect_slow is replaced with
6340 
gx_cpath_intersect_path_slow, with different arguments.
6341 
	- gs_color_space_type_Device{Gray,RGB,CMYK} are now private.
6342 
Clients should use the gs_cspace_Device{Gray,RGB,CMYK} access procedures in
6343 
gscspace.h to obtain device color space objects.
6344 
	- FontType 2 was renamed from ft_CFF to ft_encrypted2.
6345 
	- FontType 2 fonts now have FontType = ft_encrypted2, rather than
6346 
ft_encrypted with CharstringType = 2.  CharstringType no longer exists.
6347 
	- Type 1 / Type 2 fonts now have an additional member, interpret,
6348 
that must be initialized.
6349 
	- gdev_prn_render_lines and gdev_prn_get_band_buffer replace
6350 
gdev_prn_locate_overlay_buffer and gdev_prn_get_overlay_bits.  "Async"
6351 
drivers must now use the new procedures to implement partial-page rendering
6352 
recovery.
6353 
	- Clients that pass ImageType 3 images where the mask and the image
6354 
are not scaled identically, or that call image_plane_data without knowing
6355 
the image type, must now call gs_image_planes_wanted or
6356 
gx_image_planes_wanted in order to find out which subset of the data planes
6357 
to pass to the next call of image_plane_data.
6358 
	- gx_image_enum_common_init now takes slightly different arguments.
6359 
	- gs_imager_state_initialize now initializes the entire imager
6360 
state, including halftone, dev_ht, and ht_cache.
6361 
	- The argument lists for the plane_data and end_image procedures in
6362 
image enumerators have changed.
6363 
 
6364 
</pre><h3><a name="5.67_Documentation"></a>Documentation</h3><pre>
6365 
 
6366 
Fixes problems:
6367 
	- The 5.66 News mentioned the non-existent WAITFILE macro, and had
6368 
another minor typo.  (doc/News.htm)
6369 
	- The URL for the user-contributed H-P 850c driver was incorrect.
6370 
(doc/Devices.htm, contrib.mak)
6371 
	- The documentation for the driver image API had gotten out of date.
6372 
(doc/Drivers.htm)
6373 
 
6374 
Greatly improves documentation for the page queue.  (from Artifex 5.50c)
6375 
(gxpageq.h)
6376 
 
6377 
Documents the fact that Solaris builds now need -lposix4 for &lt;semaphore.h&gt;.
6378 
(doc/Make.htm)
6379 
 
6380 
Adds a stack status comment in .pdfshow.  (lib/gs_pdfwr.ps)
6381 
 
6382 
Documents the new -Z` debugging switch.  (doc/Use.htm)
6383 
 
6384 
Touches up some formatting in the C style guide, and adds a mention of the
6385 
space-before-: rule for makefiles.  (doc/C-style.htm)
6386 
 
6387 
Adds documentation for the new H-P 8xx drivers.  (doc/Devices.htm)
6388 
 
6389 
Splits off news for versions 5.0 - 5.50 into a separate file.
6390 
(doc/History5.htm)
6391 
 
6392 
</pre><h3><a name="5.67_Procedures"></a>Procedures</h3><pre>
6393 
 
6394 
Fixes problems:
6395 
	- On MS Windows platforms, the DLL object file wasn't created in the
6396 
proper directory.  (from Artifex 5.55) (msvc32.mak)
6397 
	- cfonts.mak didn't have no-op commands for rules that didn't
6398 
contain any commands.  (cfonts.mak)
6399 
	- The version number for libpng was different from libpng's own
6400 
version numbering system.  (libpng.mak)
6401 
	- Solaris builds now need -lposix4 for &lt;semaphore.h&gt;.
6402 
(unix-gcc.mak, unixansi.mak, unixtrad.mak)
6403 
	- The makefiles redefined a number of macros, which MMS doesn't
6404 
allow.  (bcwin32.mak, gs.mak, int.mak, lib.mak, libpng.mak, msvc32.mak,
6405 
openvms.mak, openvms.mmk, unix-gcc.mak, unixansi.mak, unixtrad.mak,
6406 
version.mak)
6407 
 
6408 
Changes cp.bat and rm.bat to eliminate "File not found" messages.  (from
6409 
Artifex 5.55) (cp.bat, rm.bat)
6410 
 
6411 
Changes all platform-independent makefiles to add a space before the : that
6412 
separates the targets from the dependencies, to allow the makefiles to be
6413 
used with MMS/MMK.  (cfonts.mak, contrib.mak, devs.mak, gs.mak, int.mak,
6414 
jpeg.mak, lib.mak, libpng.mak, zlib.mak)
6415 
 
6416 
Adds a script for compiling Ghostscript on OpenVMS systems with MMK.  This
6417 
has not been tested extensively.  (doc/Make.htm, openvms.mmk)
6418 
 
6419 
Changes the set of optimization switches for MSVC++.  We believe the new
6420 
switches produce working executables, which /O2 didn't.  (msvc32.mak,
6421 
msvccmd.mak)
6422 
 
6423 
Updates the default expected libpng version to 1.0.2.  (bcwin32.mak,
6424 
dvx-gcc.mak, msvc32.mak, msvclib.mak, openvms.mak, os2.mak, ugcclib.mak,
6425 
unix-gcc.mak, unixansi.mak, unixtrad.mak, watc.mak, watclib.mak,
6426 
watcw32.mak)
6427 
 
6428 
</pre><h3><a name="5.67_Utilities"></a>Utilities</h3><pre>
6429 
 
6430 
Fixes problems:
6431 
	- Default scaling in viewcmyk.ps was broken.  (lib/viewcmyk.ps)
6432 
 
6433 
Updates pdf2dsc.ps with a newer (user-contributed) version that generates
6434 
DocumentMedia and PageMedia comments.  (lib/pdf2dsc.ps)
6435 
 
6436 
</pre><h3><a name="5.67_Drivers"></a>Drivers</h3><pre>
6437 
 
6438 
Fixes problems:
6439 
	- An int * was provided where a uint * was required.  (gdevpbm.c)
6440 
	- ps2ps -dLanguageLevel=1 generated invalid output.  (gdevps.c)
6441 
	- The X drivers crashed on gray-scale displays.  (bug probably
6442 
introduced in 5.61)  (gdevx.c)
6443 
	- The width and height of the cljet5 device were interchanged.
6444 
(from Artifex) (gdevclj.c)
6445 
	- The PDF writer didn't clip cached characters properly.  (bug
6446 
introduced somewhere between 3.51 and 5.10) (gdevpdfi.c)
6447 
	- For stroked paths with a non-uniform CTM, the PDF writer could
6448 
emit coordinates larger than 32K, which Acrobat handles incorrectly.
6449 
(gdevpdfd.c)
6450 
 
6451 
Restructures some code to suppress bogus "possibly uninitialized variable"
6452 
warnings.  (gdevpdfm.c, gdevps.c)
6453 
 
6454 
Adds some unnecessary initializations to suppress bogus "possibly
6455 
uninitialized variable" warnings.  (gdevpbm.c, gdevpdfd.c, gdevvec.c,
6456 
gdevxalt.c)
6457 
 
6458 
Rewrites the (contributed) X11 xfont code to remove code duplication.
6459 
(gdevx.h, gdevx.c, gdevxini.c, gdevxxf.c)
6460 
 
6461 
Adds a user-contributed driver for the H-P LaserJet 3100 with H-P software.
6462 
(gdevmeds.h, gdevl31s.c, gdevmeds.c)
6463 
 
6464 
Adds a user-contributed option for 600 dpi output on H-P DesignJet
6465 
650C-compatible printers.  (gdevcdj.c)
6466 
 
6467 
Removes unnecessary references to device color spaces.  (gdevpdfi.c)
6468 
 
6469 
Changes the [e]pswrite and pdfwrite drivers to use EndOfBlock rather than
6470 
Rows for CCITTFax image encoding, producing slightly smaller output.
6471 
(gdevpsdf.c)
6472 
 
6473 
Changes the sample async driver to use gdev_prn_render_lines and
6474 
gdev_prn_get_band_buffer instead of locate_overlay_buffer and
6475 
get_overlay_bits.  Unfortunately, because "async" memory management is
6476 
broken, we have no way to test the code.  (gdevbmpa.c)
6477 
 
6478 
Updates clients for the change in gx_image_enum_common_init.  (gdevpdfi.c,
6479 
gdevvec.c)
6480 
 
6481 
Adds Uli Wortmann's drivers for the H-P color inkjet printers.
6482 
(contrib.mak, gdevcd8.c)
6483 
 
6484 
Adds mode 9 compression to the PCL printer utilities.  (gdevpcl.h,
6485 
gdevcdj.c, gdevpcl.c)
6486 
 
6487 
Updates implementors for the change in the plane_data and image_end image
6488 
processing procedures.  (gdevpdfi.c, gdevps.c, gdevpx.c)
6489 
 
6490 
</pre><h3><a name="5.67_Fonts"></a>Fonts</h3><pre>
6491 
 
6492 
Fixes problems:
6493 
	- The PFM files for URW Grotesk and Antiqua had some extraneous ^M
6494 
characters inserted before ^J characters.  (fonts/u003043t.pfm,
6495 
fonts/u004006t.pfm)
6496 
	- CID-keyed fonts didn't handle GlyphDirectory correctly.
6497 
(lib/gs_cidfn.ps)
6498 
	- CIDFontType 0 fonts with 0-length Subrs caused an error.
6499 
(lib/gs_cidfn.ps)
6500 
	- Malformed TrueType fonts with overlapping tables (which are
6501 
nevertheless apparently acceptable to Windows) caused an error.
6502 
(lib/gs_ttf.ps)
6503 
	- The Hershey font repairs documented in fileset 5.24 apparently
6504 
never happened: the makeher.ps program was fixed, but the derived fonts were
6505 
still broken.  (fonts/h*.ps)
6506 
	- In some Fontmaps, the /Charter-* font names were linked directly
6507 
to the Bitstream fonts, rather than being aliases for /CharterBT-*.
6508 
(lib/Fontmap.GS, lib/Fontmap.Sol, lib/Fontmap.Ult)
6509 
 
6510 
Makes undefined fonts execute the SubstituteFont procedure in $error, per a
6511 
posting by Stephen Zisk of Adobe on pdf-prepress-l on 10/8/97.
6512 
(lib/gs_fonts.ps)
6513 
 
6514 
Changes the interpreter-level CIE color space install procedures to reflect
6515 
the addition of const to the color space argument. (zcie.c)
6516 
 
6517 
</pre><h3><a name="5.67_Interpreter"></a>Interpreter</h3><pre>
6518 
 
6519 
Fixes problems:
6520 
	- The interpreter appeared to be a distiller even when the current
6521 
device was not pdfwrite.  We fixed this by patching 'where' to make the
6522 
distiller operators visible iff the current device is pdfwrite.  We also
6523 
moved the setcolor hack in 'where' into PostScript code.  (lib/gs_init.ps,
6524 
lib/gs_lev2.ps, lib/gs_pdfwr.ps, zmisc2.c)
6525 
	- The current color space for shfill wasn't identically the same
6526 
color space as the one in the shading.  (gs_ll3.ps)
6527 
 
6528 
Changes the default UCR and BG functions from f(k) = 0 to f(k) = k.
6529 
(lib/gs_init.ps)
6530 
 
6531 
Adds some unnecessary initializations to suppress bogus "possibly
6532 
uninitialized variable" warnings.  (igc.c, zcie.c)
6533 
 
6534 
Restructures some code slightly to suppress a bogus "possibly uninitialized
6535 
variable" warning.  (zdevice.c)
6536 
 
6537 
Brings the CMap machinery up to LL3, by allowing a single CMap to reference
6538 
multiple fonts (usefont, usematrix, and array CIDSystemInfo).
6539 
(lib/gs_cmap.ps, zfcmap.c)
6540 
 
6541 
Finishes implementing ReusableStreamDecode.  The implementation is very
6542 
inefficient -- it reads the entire contents into a string -- but it passes
6543 
the Genoa FTS.  (lib/gs_ll3.ps, lib/gs_res.ps, zfreuse.c)
6544 
 
6545 
Changes CFFs with CharstringType = 2 to generate FontType 2 fonts, rather
6546 
than FontType 1 with CharstringType = 2, for compatibility with Adobe's LL3
6547 
implementations.  (lib/gs_cff.ps, lib/gs_type1.ps, lib/type1ops.ps, bfont.h,
6548 
ichar1.h, ifont.h, ifont1.h, zbfont.c, zchar1.c, zchar2.c, zcharx.c,
6549 
zfont.c, zfont1.c, zfont2.c)
6550 
 
6551 
Adds the ability to create (with .bytestring) and do a few operations
6552 
(currently only length, put, putinterval) on byte arrays.  This is needed
6553 
for implementing ReusableStringDecode filters with >64K bytes of data, and
6554 
for the LL3 halftone types.  (zgeneric.c, zstring.c)
6555 
 
6556 
Implements HalftoneMode, and HalftoneTypes 6, 10, and 16.  To do this, we
6557 
introduce an internal HalftoneType 7.  (lib/gs_dps2.ps, lib/gs_init.ps,
6558 
lib/gs_ll3.ps, lib/gs_res.ps, zht2.c)
6559 
 
6560 
Finishes implementing ImageType 3 images.  (zimage.c, zimage3.c)
6561 
 
6562 
Adds the hooks in ColorSpace defineresource and undefineresource for
6563 
detecting definitions that interact with UseCIEColor.  (gs_res.ps)
6564 
 
6565 
Implements UseCIEColor at the interpreter level.  (lib/gs_dps1.ps,
6566 
lib/gs_ll3.ps, zcolor1.c, zcolor2.c, zimage.c, zmisc3.c)
6567 
 
6568 
Touches up some formatting.  (igstate.h)
6569 
 
6570 
</pre><h3><a name="5.67_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
6571 
 
6572 
Fixes problems:
6573 
	- A MediaBox with a non-zero llx or lly would produce incorrect
6574 
output.  The way we fixed this doesn't exactly match Acrobat, but it
6575 
produces reasonable output.  (based on a change from Artifex 5.55)
6576 
(lib/pdf_main.ps)
6577 
	- Colored patterns didn't work properly.  (lib/pdf_draw.ps)
6578 
	- The resources in a Pattern dictionary weren't made available
6579 
during the execution of the PaintProc.  (fix from Artifex) (lib/pdf_draw.ps)
6580 
 
6581 
</pre><h3><a name="5.67_Streams"></a>Streams</h3><pre>
6582 
 
6583 
Adds a flag to the ASCIIHexEncode filter to indicate whether or not to write
6584 
an EOD, required for Level 1 output from the pswrite device.  (sstring.h,
6585 
sstring.c)
6586 
 
6587 
Adds a close_at_eod flag to the stream state, for implementing reusable
6588 
streams; also cleans up some formatting.  (stream.h, stream.c)
6589 
 
6590 
</pre><h3><a name="5.67_Library"></a>Library</h3><pre>
6591 
 
6592 
Fixes problems:
6593 
	- Black-and-white images with Interpolate = true produced
6594 
undesirable artifacts if the image resolution was close to that of the
6595 
device.  We now disable Interpolate in this case.  (gxiscale.c)
6596 
	- In "async" mode, get_hardware_params did an unnecessary flush and
6597 
reopen.  (from Artifex 5.50c) (gdevprna.c)
6598 
	- The computation of the minimum band height for the "async" reader
6599 
was incorrect. (from Artifex 5.50c) (gdevbmpa.c)
6600 
	- The "fix" for reallocating async buffer memory in 5.50 was
6601 
incorrect. (from Artifex 5.55) (gdevprn.c)
6602 
	- The "async" reader called clist_finish_page, which it shouldn't.
6603 
(from Artifex 5.50c) (gdevprn.c)
6604 
	- The image enumeration procedures for ImageType 4 were unnecessary,
6605 
since the ImageType 1 code now handles ImageType 4 as well.  (gximage4.c)
6606 
	- The structure descriptor for tile clipping devices was
6607 
unnecessary, since these are the same as mask clipping devices.  (gxclip2.h)
6608 
	- There was a trailing comma in an enumeration list.  (gsbitops.c)
6609 
	- Some compilers didn't like initializing a uint with ~0.
6610 
(gdevm1.c)
6611 
	- shfill unnecessarily saved, reset, and restored the graphics
6612 
state.  (gscolor3.c)
6613 
	- Radial shadings always extended the shading to radius = 0.
6614 
(gxshade1.c)
6615 
	- An identifier exceeded VMS's limit of 31 characters.  (gdevprn.h,
6616 
gdevprn.c)
6617 
	- A header file didn't #include enough of its prerequisites.
6618 
(gxpcolor.h)
6619 
	- Images with non-default ImageMatrix weren't written correctly in
6620 
the band list. (bug introduced in 5.60)  (gximage1.c)
6621 
	- Banded images that had to use the default implementation incurred
6622 
an extra level of procedure call for each block of data.  (gxclimag.c)
6623 
	- Images rotated by other than a multiple of 90 degrees produced
6624 
incorrect output, because pie-&gt;rect.p.y was updated after each block of
6625 
data, causing image_band_box to produce inconsistent results.  (bug
6626 
introduced by async changes in 5.50) (gxclimag.c)
6627 
	- The client_data pointer in client_order halftones wasn't traced
6628 
correctly, possibly causing memory corruption if this type of halftone was
6629 
used.  (These are not currently used by the PostScript interpreter.)
6630 
(gsht.c, gsht1.c)
6631 
	- ImageType 3 images didn't handle subrectangles.  (Not a problem
6632 
for PostScript, which doesn't generate subrectangles, or for PCL, which
6633 
doesn't use them.)  (gximage3.c)
6634 
	- If a VMerror occurred when setting up an ImageType 3 image. an
6635 
attempt could be made to free an uninitialized pointer.  (gximage3.c)
6636 
	- ImageType 4 images with 1 to 8 bits per sample and Decode = [1 0]
6637 
didn't test transparency correctly. (bug introduced in 5.60) (gximage.h,
6638 
gxicolor.c, gximono.c, gxipixel.c)
6639 
	- setgray, setrgbcolor, sethsbcolor, and setcmykcolor didn't use
6640 
gs_cspace_assign, causing code duplication.  After this fix, we made the
6641 
device color space types private, since there are no longer any references
6642 
to them outside gscspace.c.  (gxcspace.h, gscolor.c, gscolor1.c, gscspace.c)
6643 
	- gs_cspace_assign was misspelled cs_cspace_assign.  (gscspace.h)
6644 
	- setgray didn't set the pattern pointer of the current color to 0,
6645 
possibly causing the GC to retain patterns it shouldn't.  (gscolor.c)
6646 
	- The dev_ht member of an imager (or graphics) state wasn't included
6647 
in the macro that enumerates reference-counted pointers.  This probably had
6648 
no effect, since the macro isn't used.  (gxistate.h)
6649 
	- When the band rasterizer freed its imager state, the halftone and
6650 
device halftone structures weren't freed, possibly causing memory leakage.
6651 
(gsistate.c)
6652 
 
6653 
Changes the default UCR and BG functions from f(k) = 0 to f(k) = k, per a
6654 
user's suggestion.  We aren't sure which matches the Adobe implementations
6655 
on color devices.  (gxdcconv.c)
6656 
 
6657 
Conditionally removes some variables that are not needed on big-endian
6658 
systems.  (gdevm1.c)
6659 
 
6660 
Restructures some code to suppress bogus "possibly uninitialized variable"
6661 
warnings.  (gxfixed.h, gdevddrw.c, gsmatrix.c, gsmisc.c, gxclimag.c)
6662 
 
6663 
Adds a couple of unnecessary initializations to suppress bogus "possibly
6664 
uninitialized variable" warnings.  (gsbitops.c)
6665 
 
6666 
Implements BBox, Background, and Extend for shadings.  (Background isn't
6667 
tested yet, because it only takes effect for pattern shading, which isn't
6668 
implemented yet.)  (gsshade.h, gxacpath.h, gxistate.h, gxpath.h, gscolor3.c,
6669 
gsshade.c, gxacpath.c, gxacpath.c, gxcpath.c)
6670 
 
6671 
Brings the CMap machinery up to LL3, by allowing a single CMap to reference
6672 
multiple fonts (usefont, usematrix, and array CIDSystemInfo).  (gsfcmap.h,
6673 
gxfcmap.h, gsfcmap.c)
6674 
 
6675 
Adds more tracing output to the band list reader.  (gxclrast.c)
6676 
 
6677 
Cleans up some formatting.  (gstext.h, gxtext.h)
6678 
 
6679 
Replaces FontType = 1, CharstringType = 2 with FontType = 2, to match the
6680 
Adobe implementations.  (gxfont1.h, gxftype.h, gxtype1.h, gstype1.c,
6681 
gstype2.c, gxtype1.c)
6682 
 
6683 
Adds new gs_bytestring and gs_const_bytestring structures that may reference
6684 
either string or (byte) object storage.  (gsstruct.h, gstypes.h, gsmemory.c)
6685 
 
6686 
Implements an additional halftone type (ht_type_threshold2) needed for
6687 
HalftoneTypes 6, 10, and 16.  We don't extend gshtx.[hc] to deal with this
6688 
at this time, since the new type is only needed for the PostScript
6689 
interpreter.  (gxht.h, gxhttype.h, gzht.h, gsht.c, gsht1.c, gshtscr.c)
6690 
 
6691 
Adds a procedure for division mod M, possibly needed for halftones.
6692 
(gxarith.h, gsmisc.c)
6693 
 
6694 
Adds a -Z` debugging switch to turn off high-level images in the band list.
6695 
(gxclimag.c)
6696 
 
6697 
Implements gdev_prn_render_lines, as the lowest-level external API for
6698 
rendering lines in a banded device.  This call replaces the "overlay" calls
6699 
for async rendering.  (gdevprn.h, gdevprna.h, gxclist.h, gdevprn.c,
6700 
gxclread.c)
6701 
 
6702 
Extends the image enumeration API so that the enumerator can indicate what
6703 
subset of the input planes it wants delivered on the next call to
6704 
image_plane_data.  Currently this is only needed for ImageType 3.
6705 
(gsimage.h, gxdevcli.h, gxiparam.h, gdevddrw.c, gsimage.c, gximage.c,
6706 
gximage3.c)
6707 
 
6708 
Extends the image enumeration structures to handle images that require a
6709 
different amount of data for plane N than Width * plane_depths[N].  This
6710 
requires a NON-BACKWARD-COMPATIBLE change to the argument list of the
6711 
gx_image_enum_common_init procedure.  (gxiparam.h, gdevbbox.c, gsimage.c,
6712 
gxclimag.c, gximage.c, gximage2.c, gximage3.c, gxipixel.c)
6713 
 
6714 
Updates the copyright date to 1999.  (gscdef.c)
6715 
 
6716 
Cleans up formatting, capitalizes macro names, etc.  (gximage.h, gxsample.h,
6717 
gxipixel.c)
6718 
 
6719 
Adds the UseCIEColor device parameter.  (gxdevcli.h, gxdevice.h, gsdparam.c)
6720 
 
6721 
Implements color space substitution (UseCIEColor).  (gscolor2.h, gscspace.h,
6722 
gscssub.h, gxistate.h, gzstate.h, gscolor.c, gscolor1.c, gscolor2.c,
6723 
gscolor3.c, gscssub.c, gslib.c, gspcolor.c, gsstate.c)
6724 
 
6725 
Changes the color space install procedure so that its color space argument
6726 
is const.  Now all color space implementation procedures take a const
6727 
argument.  (gscie.h, gxcspace.h, gscdevn.c, gscolor2.c, gscscie.c,
6728 
gscspace.c, gscsepr.c, gspcolor.c)
6729 
 
6730 
Changes gs_setcolorspace so its color space argument is const.  (gscolor2.h,
6731 
gscolor2.c)
6732 
 
6733 
Splits imager state procedures out of gsstate.c, which was getting too
6734 
large.  (gxistate.h, gsstate.c, gsistate.c)
6735 
 
6736 
Changes gs_imager_state_initialize so it really initializes the whole imager
6737 
state.  (gsistate.c, gxclrast.c)
6738 
 
6739 
Removes the now-redundant first (device) argument from the plane_data and
6740 
end_image procedures in image enumerators.  Implementors of these procedures
6741 
must now get the device from the enumerator structure.  This is a
6742 
NON-BACKWARD-COMPATIBLE design cleanup that we have been putting off for
6743 
most of a year.  Also adds an argument to plane_data so it can tell its
6744 
client how many rows of data was used: this is needed for the implementation
6745 
of ImageType 3.  (gxdevcli.h, gxiparam.h, gdevbbox.c, gdevplnx.c, gsimage.c,
6746 
gxclimag.c, gxidata.c, gximage.c, gximage3.c)
6747 
 
6748 
Changes CFFs with CharstringType = 2 to FontType 2 fonts, rather than
6749 
FontType 1 with CharstringType = 2, for compatibility with Adobe's LL3
6750 
implementations.  (gstype1.h)
6751 
 
6752 
</pre>
6753 
 
6754 
<hr>
6755 
 
6756 
<h2><a name="Version5.66"></a>Version 5.66 (internal) (11/25/98)</h2>
6757 
 
6758 
<p>
6759 
This fileset includes the ability to efficiently and conveniently obtain
6760 
planar rather than chunky raster output.  It also fixes a large number of
6761 
minor compilation problems on non-ANSI compilers, and a small number of real
6762 
problems.  It also implements the PostScript LanguageLevel 3 clipsave and
6763 
cliprestore operators.  Unfortunately, because of fragility in third-party
6764 
code changes that we were forced to include in the base graphics library,
6765 
overlapped rasterizing ("async mode") fails:
6766 
<ul>
6767 
<li>	- At 300 dpi, for 4-bit planar devices in the low-memory
6768 
("partial
6769 
	page") condition, and always for 32-bit planar devices.
6770 
 
6771 
<li>	- At 600 dpi, for all devices other than monochrome.
6772 
</ul>
6773 
 
6774 
<h3><a name="5.66_Incompatible_changes"></a>Incompatible changes</h3><pre>
6775 
 
6776 
(Procedures)
6777 
	- Every platform-specific makefile must now define _D_, the internal
6778 
separator for defining preprocessor macros.
6779 
	- Every platform-specific makefile must now define PSLIBDIR, the
6780 
directory holding the PS initialization files at build time.  (This need not
6781 
be the same as where these files are stored at run time.)
6782 
 
6783 
(Library)
6784 
	- New elements arch_float_mantissa_bits and
6785 
arch_double_mantissa_bits have been added to arch.h.  Cross-build
6786 
environments that supply arch.h rather than generating it at build time must
6787 
add these elements.
6788 
	- A new GB_SELECT_PLANES option has been added to the options mask
6789 
for the get_bits_rectangle driver procedure.  Implementations of this
6790 
procedure must take this option into account (although they do not have to
6791 
implement it).
6792 
	- The make_buffer_device printer device procedure has been replaced
6793 
with create_buf_device, setup_buf_device, and destroy_buf_device.  All
6794 
clients and implementors of make_buffer_device must be changed, including
6795 
users of the clist_init_params macro.
6796 
	- The gx_device_cmap_procs procedure has been replaced with
6797 
gx_get_cmap_procs, which also take an imager state as an argument.  Callers
6798 
of gx_device_cmap_procs must be changed.
6799 
 
6800 
</pre><h3><a name="5.66_Documentation"></a>Documentation</h3><pre>
6801 
 
6802 
Updates Make.htm to clarify the standard directory structure.
6803 
(doc/Make.htm)
6804 
 
6805 
Adds a note about DEC C vs. VAX C for remapping of exit codes.
6806 
(doc/Make.htm)
6807 
 
6808 
Clarifies that the end_image procedure frees the enumerator.  (gxiparam.h)
6809 
 
6810 
</pre><h3><a name="5.66_Procedures"></a>Procedures</h3><pre>
6811 
 
6812 
Fixes problems:
6813 
	- The genxxx utilities didn't compile properly on systems where the
6814 
C compiler doesn't automatically search for .h files in the directory of the
6815 
.c file.  (unixtail.mak)
6816 
	- Preprocessor definitions require special quoting with Watcom C.
6817 
Fixing this required adding a _D_ macro similar to II.  This is a
6818 
NON-BACKWARD-COMPATIBLE change, since this definition is now required in
6819 
each platform-specific makefile.  (dvx-head.mak, openvms.mak, os2.mak,
6820 
unixhead.mak, wccommon.mak, winlib.mak, zlib.mak)
6821 
	- The VMS subdirectories didn't include the "." to make the
6822 
directory name relative.  (openvms.mak)
6823 
	- Some of the OpenVMS command files were omitted from the
6824 
distribution.  (copy_one.com, rm_one.com, rm_all.com)
6825 
	- MMK interprets a final - on a command line as a continuation
6826 
marker.  (gs.mak)
6827 
	- gsiparm4_h was used before being defined.  (lib.mak)
6828 
	- Compiled initialization code (COMPILE_INITS=1) was broken because
6829 
of the introduction of subdirectories.  (bcwin32.mak, dvx-gcc.mak,
6830 
msvc32.mak, openvms.mak, os2.mak, unix-gcc.mak, unixansi.mak, unixtrad.mak,
6831 
watc.mak, watcw32.mak, int.mak, geninit.c)
6832 
	- Level 1 configurations would no longer build with the standard set
6833 
of drivers.  (devs.mak)
6834 
	- wmake interpreted "&amp;" in a rule command line as calling for
6835 
background execution.  (wccommon.mak)
6836 
 
6837 
Makes the standard set of features the same on all platforms, namely, psl3
6838 
(PostScript LanguageLevel 3) + pdf (PDF 1.2/1.3) + dpsnext (DPS with NeXT
6839 
extensions) + ttfont (ability to load TrueType fonts directly).  Unix
6840 
platforms add pipe (recognition of %pipe% file names).  (bcwin32.mak,
6841 
dvx-gcc.mak, msvc32.mak, openvms.mak, os2.mak, unix-gcc.mak, unixansi.mak,
6842 
unixtrad.mak, watc.mak, watcw32.mak)
6843 
 
6844 
Adds minimal support for Windows 95/NT compiler versions.  (wccommon.mak)
6845 
 
6846 
Notes a set of switches that may work around the optimizer bug in MSVC++
6847 
5.0.  (msvccmd.mak)
6848 
 
6849 
</pre><h3><a name="5.66_Utilities"></a>Utilities</h3><pre>
6850 
 
6851 
Adds a switch to genconf to set the escape character, since wmake interprets
6852 
"&amp;" in a rule command line as calling for background execution.  (genconf.c)
6853 
 
6854 
Makes echogs recognize -+ alone as equivalent to - alone, for the sake of
6855 
VMS systems, which interpret a final - as a line continuation marker.
6856 
(echogs.c)
6857 
 
6858 
Adds a viewpsm procedure to viewpbm.ps, for reassembling plane-separated
6859 
files.  (lib/viewpbm.ps)
6860 
 
6861 
</pre><h3><a name="5.66_Drivers"></a>Drivers</h3><pre>
6862 
 
6863 
Fixes problems:
6864 
	- There were places where the code assumed that void * could be
6865 
coerced to byte *, which not all C compilers support.  (gdevpdfx.h,
6866 
gdevpdfo.c)
6867 
	- The name put_bytes was defined in two places, causing an error
6868 
when linking with NOPRIVATE=1.  (gdevpx.c)
6869 
	- The minimum space computation for high-level images and for the
6870 
scan line length for the sample async driver was slightly too small.
6871 
(gdevbmpa.c)
6872 
 
6873 
Improves the tracing output from the psm driver.  (gdevpbm.c)
6874 
 
6875 
Rewrites some macros to eliminate "statement not reached" compiler warnings.
6876 
(gdevpx.c)
6877 
 
6878 
Revises the (only) client for changes in the plane-extraction device API.
6879 
(gdevpbm.c)
6880 
 
6881 
Adds plane-separated BMP drivers, primarily for testing but also as an
6882 
example.  bmp[a]sep1 and bmp[a]sep8 produce 1- and 8-bit-per-pixel separated
6883 
CMYK.  (gdevbmp.h, gdevbmp.c, gdevbmpa.c, gdevbmpc.c)
6884 
 
6885 
</pre><h3><a name="5.66_Platforms"></a>Platforms</h3><pre>
6886 
 
6887 
Fixes problems:
6888 
	- The Watcom environment doesn't provide the st_blocks member of the
6889 
stat structure.  (stat_.h)
6890 
	- In its standard configuration, the Watcom environment doesn't
6891 
provide stdprn.  (gp_iwatc.c)
6892 
	- Newer versions of DEC C on OpenVMS don't require the remapping
6893 
of the exit codes.  (stdpre.h)
6894 
 
6895 
Revises the dummy implementation of semaphores, monitors, and threads in an
6896 
attempt to make async rendering (just barely) work for the non-overlay case.
6897 
Unfortunately, this turned out not to be feasible.  (gp_nsync.c)
6898 
 
6899 
</pre><h3><a name="5.66_Interpreter"></a>Interpreter</h3><pre>
6900 
 
6901 
Fixes problems:
6902 
	- Certain DEC compilers assume that a pointer is aligned even if it
6903 
is cast to a pointer whose target type has weaker alignment; this produced
6904 
"unaligned access" errors in the interpreter.  (interp.c)
6905 
	- A necessary cast was omitted.  (zcrd.c)
6906 
	- Level 1 configurations would no longer run.  (lib/gs_init.ps)
6907 
 
6908 
Updates clients to set mask image fattening properly.  (zimage.c, zimage2.c)
6909 
 
6910 
Rewrites some macros to eliminate "statement not reached" compiler warnings.
6911 
(files.h, istruct.h)
6912 
 
6913 
</pre><h3><a name="5.66_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
6914 
 
6915 
Fixes problems:
6916 
	- The test for whether to honor the Rotate key was backwards.  (bug
6917 
probably introduced in 5.24) (lib/pdf_main.ps)
6918 
 
6919 
Updates the code to handle improper PDF files in which the startxref and the
6920 
following file position appear on the same line rather than (as required by
6921 
the spec) two successive lines.  (lib/pdf_main.ps)
6922 
 
6923 
</pre><h3><a name="5.66_Streams"></a>Streams</h3><pre>
6924 
 
6925 
Notes a bug in s_DCT_get_quantization_tables.  (sdcparam.c)
6926 
 
6927 
</pre><h3><a name="5.66_Library"></a>Library</h3><pre>
6928 
 
6929 
Fixes problems:
6930 
	- The algorithm for reducing 4-bit chunky to 1-bit separated colors
6931 
didn't handle the trailing pixels of a transfer correctly.  (gdevplnx.c)
6932 
	- Banding for RGB devices with multi-plane halftones was broken.
6933 
(bug introduced recently) (gxdcolor.c)
6934 
	- Mask images were written in the band list with inverted polarity.
6935 
(bug introduced in 5.60) (gximage1.c)
6936 
	- Mask images were always fattened.  Fixing this required extending
6937 
the API, since gs_image_t_init_mask set adjust = true by default (a bad
6938 
decision) and we didn't want to change it.  (gschar.h, gscpm.h, gsiparam.h,
6939 
gzstate.h, gschar.c, gximage1.c)
6940 
	- The member names push and pop caused problems for compilers whose
6941 
preprocessors consider it an error to use a macro defined with arguments as
6942 
a name without arguments.  (gxfont1.h, gstype1.c)
6943 
	- Once again, gcc didn't detect some private/non-private mismatches.
6944 
(gdevplnx.c, gsalphac.c, gximage2.c, gximage4.c)
6945 
	- &amp; was used with an array (which gcc doesn't complain about).
6946 
(gxshade6.c)
6947 
	- There were several uses of automatic aggregate initialization,
6948 
which not all C compilers support.  (gdevprn.c, gdevps.c)
6949 
	- There were places where the code assumed that void * could be
6950 
coerced to byte *, which not all C compilers support.  (gdevprn.c)
6951 
	- Some \ line continuation characters were used inappropriately
6952 
(in a macro argument list).  (gxclimag.c)
6953 
	- Some function prototypes didn't use the Pn macros.  (gsalloc.c)
6954 
	- A function definition not at the left margin confused ansi2knr.
6955 
(gsfont.c)
6956 
	- A cast for the result of malloc, needed on systems where malloc
6957 
returns a char * rather than a void *, was missing.  (gsmalloc.c)
6958 
	- An occurrence of dev should be pdev.  (I can't understand how we
6959 
missed this in 5.65.)  (gdevprna.c)
6960 
	- A value was missing from a list of initial structure values,
6961 
causing mismatches between subsequent values and the members they
6962 
initialized.  (gcc treated this as a warning: it should have given an
6963 
error.)  (gxband.h)
6964 
	- When setting the tile phase during banding, the old value of the
6965 
tile phase was written out rather than the new one.  (gxclutil.c)
6966 
	- The definition of fixed_mult_quo wasn't consistent between systems
6967 
with FPU (where it took the floor, and might be slightly inaccurate) and
6968 
systems without FPU (where it truncated towards zero, and was accurate).
6969 
(gxfixed.h, genarch.c, gsmisc.c)
6970 
	- Banding devices using multi-screen halftones didn't set the
6971 
halftone phase correctly.  We have now "fixed" this problem at least 4
6972 
times.  (gxclrast.c)
6973 
	- The name put_bytes was defined in two places, causing an error
6974 
when linking with NOPRIVATE=1.  (gsparams.c)
6975 
	- For [x][y]show, the pointers to the width arrays weren't
6976 
initialized, causing memory access errors when checking or garbage
6977 
collecting.  (gschar.c)
6978 
	- Due to a typo, bitmap characters were fattened too much.
6979 
(gximage1.c)
6980 
	- Some identifiers exceeded VMS's limit of 31 characters.
6981 
(gdevprn.h, gscsepr.h, gsdevice.h, gxdevice.h, gdevdflt.c, gdevprn.c,
6982 
gscsepr.c, gsdparam.c)
6983 
	- The device halftone parameter was declared const inappropriately
6984 
in some places.  (gsdcolor.h, gxdither.h, gxdcolor.c, gxdither.c)
6985 
	- gdev_mem_raster was used (misleadingly, even though it happened to
6986 
produce the correct result) on possibly non-memory devices.  (gxclread.c)
6987 
	- Pure Level 1 configurations had some undefined procedures.
6988 
(gscolor1.c, gscspace.c)
6989 
	- Indexed color images could incorrectly conclude that they didn't
6990 
need to re-render halftones, producing incorrect output.  (gximono.c)
6991 
	- gs_device_is_memory returned false for non-banding printer
6992 
devices: this didn't used to matter, but it matters now.  We changed it to
6993 
test the procedures rather than the device name.  (gdevmem.c)
6994 
	- The plane extraction device didn't handle halftoned colors
6995 
correctly.  (gdevplnx.c)
6996 
	- If an error occurred while building a Function object, a crash
6997 
could occur while freeing the partially built object.  (gsfunc.c)
6998 
	- The plane extraction device didn't handle RasterOps correctly.
6999 
(gdevplnx.c)
7000 
	- The colors-used mask could include some additional, invalid bits.
7001 
(gxclrect.c)
7002 
	- The colors-used mask was updated incorrectly for RasterOps on
7003 
subtractive-color devices.  (gxclrect.c)
7004 
	- Memory devices didn't set enough option bits for the case where
7005 
get_bits_rectangle had to do conversion.  (gdevmem.c)
7006 
	- The TrueType font rasterizer didn't accept fonts whose 'type' was
7007 
"true" rather than the documented <00 01 00 00>.  (gstype42.c)
7008 
	- A bug in the Watcom compiler caused two conditional expressions to
7009 
execute incorrectly.  (gstype42.c)
7010 
	- When a page queue was freed, it attempted to free the page_info
7011 
resource in the reserve entry, which is actually unused.  (gxpageq.c)
7012 
	- A necessary #include was missing.  (gdevmr2n.c)
7013 
 
7014 
Reduces the size of band list entries for halftoned colors somewhat.
7015 
(gxclpath.h, gxclpath.c, gxclrast.c)
7016 
 
7017 
Increases the number of saved band color masks per page, mostly for testing.
7018 
(gxband.h)
7019 
 
7020 
Rewrites some macros, and one 'for' statement, to eliminate "statement not
7021 
reached" compiler warnings.  (gxcldev.h, gxpath2.c)
7022 
 
7023 
Corrects a tiny inaccuracy in the computation of trapezoid coordinates.
7024 
(gdevddrw.c)
7025 
 
7026 
Edits the trapezoid fill code for greater readability and better
7027 
documentation of its functioning.  The new code runs a little slower on
7028 
compilers that don't support 'inline'.  (gdevddrw.c)
7029 
 
7030 
Improves the documentation of the tile phase bookkeeping.  (gxclrast.c)
7031 
 
7032 
Documents the fact that fixed_mult_quo takes the floor if the first argument
7033 
is negative.  (gxfixed.h)
7034 
 
7035 
Finishes implementing clipsave and cliprestore.  (gxclipsr.h, gxistate.h,
7036 
gzstate.h, gsclipsr.c, gsstate.c)
7037 
 
7038 
Implements driver access to planar, rather than chunky, banding.
7039 
(gdevplnx.h, gdevprn.h, gxclist.h, gxdevcli.h, gxrplane.h, gdevplnx.c,
7040 
gdevprn.c, gxclread.c)
7041 
 
7042 
Makes it possible to set up memory devices that allocate just the line
7043 
pointer table (but not the bitmap), or neither the line pointers nor the
7044 
bitmap.  (gxdevmem.h, gdevmem.c)
7045 
 
7046 
Moves gx_device_white/black to a more appropriate header file.  (gxdcolor.h)
7047 
 
7048 
Moves gx_default_make_buffer_device to a more appropriate file.
7049 
(gdevdflt.c, gdevprn.c)
7050 
 
7051 
Adds plane extraction and expansion utility procedures, required for the
7052 
extended capability of get_bits_rectangle.  (gsbitops.h, gsbitops.c)
7053 
 
7054 
Extends get_bits_rectangle so it can return individual planes rather than
7055 
all planes.  (gdevplnx.h, gsbittab.h, gxbitfmt.h, gxgetbit.h, gdevdgbr.c,
7056 
gdevdrop.c, gdevmem.c, gdevplnx.c, gsalphac.c, gsbittab.c)
7057 
 
7058 
Factors out the two more complex cases of gx_get_bits_copy into single-use
7059 
procedures for readability.  (gdevdgbr.c)
7060 
 
7061 
Makes public the procedure for reducing a colored halftone to a pure or
7062 
binary halftone, needed for planar rendering.  (gxdither.h, gxdither.c)
7063 
 
7064 
Moves the client_data pointer from gs_state to gs_imager_state.
7065 
(gxistate.h, gzstate.h, gsstate.c)
7066 
 
7067 
Extends the plane extraction device to handle fill_mask and images
7068 
efficiently.  (gxcmap.h, gdevplnx.h, gdevplnx.c)
7069 
 
7070 
Creates a procedure to make a temporary copy of a gs_imager_state, needed
7071 
for planar image processing.  (gxistate.h, gsstate.c)
7072 
 
7073 
Makes getting the color mapping procedures for a device a virtual procedure
7074 
of the imager state, needed for planar image processing.  (gxcmap.h,
7075 
gxistate.h, gxcmap.c, gxicolor.c, gximono.c, gxi12bit.c)
7076 
 
7077 
Increases the amount of memory allocated to the asynchronous rasterizer,
7078 
since we now may need a dynamically allocated line pointer table for the
7079 
target (plane) memory device.  (gdevprna.c)
7080 
 
7081 
Adds a record of which bands have "difficult" RasterOps -- RasterOps that
7082 
can't be executed, even in principle, in CMYK space.  We don't do anything
7083 
with this information yet, but we will have to.  (gsropt.h, gxband.h,
7084 
gxcldev.h, gxclpath.h, gxclist.c, gxclpath.c, gxclrect.c)
7085 
 
7086 
Makes conversion from render_plane indices to bit ranges the responsibility
7087 
of the device, not the client.  (gxrplane.h)
7088 
 
7089 
</pre>
7090 
 
7091 
<hr>
7092 
 
7093 
<h2><a name="Version5.65"></a>Version 5.65 (internal) (11/13/98)</h2>
7094 
 
7095 
<p>
7096 
The main purpose of this fileset is to fix the MS Windows and OpenVMS build
7097 
procedures, which have been broken since 5.60.  It also adds the ability for
7098 
a driver to determine efficiently which colors are used in a given page or
7099 
band, which is important for separated color printing, and contains some
7100 
early support for plane-separated color printing.
7101 
 
7102 
<h3><a name="5.65_Incompatible_changes"></a>Incompatible changes</h3><pre>
7103 
 
7104 
(Procedures)
7105 
	- Every platform-specific makefile must now define D_ and _D, the
7106 
brackets for defining preprocessor macros.
7107 
	- The unix-cc.mak makefile has been renamed unixtrad.mak, since it
7108 
only applies to "traditional C" compilers.
7109 
 
7110 
(Drivers, Library)
7111 
	- Devices now store their TextAlphaBits and GraphicsAlphaBits values
7112 
explicitly.  The former get_alpha_bits procedure is obsoleted, and no
7113 
longer implemented or called by any code we distribute.
7114 
	- gx_device_color_info now has additional fields.  Code that
7115 
constructed gx_color_info_values in any way other than by using the dci_
7116 
macros will no longer work.
7117 
 
7118 
</pre><h3><a name="5.65_Documentation"></a>Documentation</h3><pre>
7119 
 
7120 
Fixes problems:
7121 
	- The -sPSFile= switch was still documented, even though it no
7122 
longer exists.  (doc/Use.htm)
7123 
	- The - "switch" wasn't documented in the list of switches,
7124 
although it was documented elsewhere.  (doc/Use.htm)
7125 
	- The documentation for the PC environments was out of date -- it
7126 
didn't mention the use of subdirectories.  (doc/Make.htm)
7127 
 
7128 
Updates the documentation on PostScript files to indicate in what directory
7129 
the files are distributed.  (doc/Psfiles.htm)
7130 
 
7131 
Documents more of the utility procedures used by printer drivers.
7132 
(gdevprn.h)
7133 
 
7134 
Notes that the public tar archives may not be compatible with the tar
7135 
program in SunOS 4.1.3.  (doc/Make.htm)
7136 
 
7137 
Adds documentation on the Unix "make pg" target.  (doc/Make.htm)
7138 
 
7139 
Updates documentation to reflect the name change from unix-cc.mak to
7140 
unixtrad.mak.  (doc/Make.htm)
7141 
 
7142 
Adds some links for the benefit of people who have built Ghostscript before
7143 
and therefore skip reading the initial sections of the documentation.
7144 
(doc/Make.htm)
7145 
 
7146 
Documents the new -_ switch.  (doc/Use.htm)
7147 
 
7148 
Updates the documentation to mention PostScript LanguageLevel 3 and to
7149 
remove many references to 16-bit systems.  (doc/Language.htm)
7150 
 
7151 
</pre><h3><a name="5.65_Procedures"></a>Procedures</h3><pre>
7152 
 
7153 
Fixes problems:
7154 
	- A cast discarded `const' needlessly.  (genconf.c)
7155 
	- Upper-case echogs switches were getting converted to lower case
7156 
on VMS.  (jpeg.mak)
7157 
	- $(EXP) was missing before some invocations of executables.
7158 
(gs.mak, jpeg.mak, lib.mak)
7159 
	- Some dependencies in the Unix install script were incorrect.
7160 
(unixinst.mak)
7161 
	- Because of differences between shells, putting *.upp in the list
7162 
of files to be installed didn't work with some shells.  (unixinst.mak)
7163 
	- The PC makefiles were out of date.  (bcwin32.mak, pcwin.mak,
7164 
winint.mak, winlib.mak, dwmain.rc, gsdll32.rc)
7165 
	- Some makefiles still used $(DEV) instead of dev.  (dvx-tail.mak,
7166 
msvclib.mak, openvms.mak, os2.mak, pcwin.mak, watclib.mak, winlib.mak)
7167 
	- The DEVICE_DEVSn lists overflowed the DOS 120-character command
7168 
line limit again.  We had to add DEVICE_DEVS16 through 20 to work around
7169 
this.  (*.mak)
7170 
	- Preprocessor definitions have a different syntax on VMS.  Fixing
7171 
this required adding D_ and _D macros, similar to I_ and _I.  This is a
7172 
NON-BACKWARD-COMPATIBLE change, since these definitions are now required in
7173 
each platform-specific makefile.  (dvx-head.mak, openvms.mak, os2.mak,
7174 
unixhead.mak, wccommon.mak, winlib.mak, zlib.mak)
7175 
 
7176 
Adds command line switches to generate additional warnings when compiling
7177 
the auxiliary programs with gcc.  (unix-gcc.mak)
7178 
 
7179 
Gets rid of the EXPP and SHP macros, since they aren't used or needed any
7180 
longer.  (gs.mak, bcwin32.mak, dvx-head.mak, msvccmd.mak, openvms.mak,
7181 
os2.mak, unixhead.mak, watcw32.mak, wccommon.mak)
7182 
 
7183 
Changes the Unix EXP to null, since all executables now use an explicit
7184 
directory prefix.  (unixhead.mak)
7185 
 
7186 
Renames unix-cc.mak as unixtrad.mak, since people with ANSI-compatible cc
7187 
were getting confused.  (unix-cc.mak [deleted], unixtrad.mak)
7188 
 
7189 
Adds a -_ switch, for piped execution with buffering.  (iminst.h,
7190 
imainarg.c)
7191 
 
7192 
</pre><h3><a name="5.65_Utilities"></a>Utilities</h3><pre>
7193 
 
7194 
Fixes problems:
7195 
	- The revised ansi2knr didn't recognize "foo(void)" as a procedure
7196 
definition.  (ansi2knr.c)
7197 
	- ansi2knr didn't handle function definitions where the last
7198 
formal parameter was a procedure parameter.  (ansi2knr.c)
7199 
 
7200 
Adds a utility for printing an informative error page if a PostScript job
7201 
fails.  (lib/errpage.ps, doc/Psfiles.htm, unixinst.mak)
7202 
 
7203 
</pre><h3><a name="5.65_Drivers"></a>Drivers</h3><pre>
7204 
 
7205 
Fixes problems:
7206 
	- The [e]pswrite drivers produced incorrect output for images in
7207 
non-Device color spaces.  We fixed this by causing all other images to be
7208 
handled as rectangles.  This is clearly not satisfactory: we need to unify
7209 
the PS and PDF writers in this area.  (gdevps.c)
7210 
	- The CCITTFaxEncoded data produced by the [e]pswrite driver had
7211 
both a Rows value and an EndOfBlock marker, which wasn't compatible with
7212 
some Adobe interpreters.  (gdevpsdf.c)
7213 
	- X devices couldn't be copied, because the copy didn't clear the
7214 
list of X fonts and therefore tried to free it a second time.  (gdevx.c,
7215 
gdevxini.c)
7216 
	- gdevx.h declared a type called rect, conflicting with variables
7217 
named rect.  (gdevx.h, gdevx.c)
7218 
	- A function definition wasn't formatted properly to be
7219 
recognized by ansi2knr.  (gdevupd.c)
7220 
	- The PCL XL drivers crashed if given a masked image.  (gdevpx.c)
7221 
 
7222 
Adds a PBM driver that writes separated CMYK, using the colors-used masks to
7223 
skip bands.  (devs.mak, gdevpbm.c)
7224 
 
7225 
Updates drivers that formerly supported the TextAlphaBits and
7226 
GraphicsAlphaBits parameters themselves.  (gdevmswn.h, gdevsvga.h,
7227 
gdevpbm.c, gdevmswn.c, gdevpm.c, gdevwdib.c, gdevsvga.c, gdevxalt.c)
7228 
 
7229 
</pre><h3><a name="5.65_Platforms"></a>Platforms</h3><pre>
7230 
 
7231 
Fixes problems:
7232 
	- The stack size on the Watcom platform was set too small.
7233 
(watc.mak)
7234 
	- The OpenVMS platform code and makefiles had gotten out of date.
7235 
(gp_vms.c, openvms.mak)
7236 
 
7237 
</pre><h3><a name="5.65_Interpreter"></a>Interpreter</h3><pre>
7238 
 
7239 
Fixes problems:
7240 
	- The size of Indexed color space lookup tables wasn't set, possibly
7241 
causing them to be corrupted during garbage collection.  (zcsindex.c)
7242 
	- A function definition wasn't formatted properly to be
7243 
recognized by ansi2knr.  (icontext.c)
7244 
	- quit was only rebound to stop in encapsulated jobs, rather than in
7245 
any context under control of a job server.  Since we don't currently have
7246 
any explicit way to indicate whether execution is under control of a job
7247 
server, we consider that it is under a job server iff startjob has ever been
7248 
executed.  (lib/gs_lev2.ps)
7249 
 
7250 
Adds tracing output for removing an entry from a dictionary.  (idict.c)
7251 
 
7252 
Slightly improves dictionary deletion so that it can replace a run of
7253 
deleted keys with empty keys.  (idict.c)
7254 
 
7255 
Adds statistics-gathering to the interpreter.  (interp.c)
7256 
 
7257 
Adds more statistics-gathering to the dictionary stack search.  (idstack.c)
7258 
 
7259 
Improves the debugging printout of packed arrays.  (idebug.c)
7260 
 
7261 
Increases the name table allocation increment from 128 names (1.5K) to 256
7262 
names (3K), to provide better scattering of name indices.  (inamedef.h)
7263 
 
7264 
Changes the name count / index mapping to provide better scattering.
7265 
(inamedef.h)
7266 
 
7267 
</pre><h3><a name="5.65_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
7268 
 
7269 
Fixes problems:
7270 
	- If a font other than the base 14 wasn't embedded and lacked a
7271 
descriptor, an error occurred.  (The PDF specification explicitly prohibits
7272 
this, but Acrobat PDFWriter 3.02 for Windows produces PDF files with
7273 
TrueType fonts that lack a descriptor.)  (lib/pdf_font.ps)
7274 
 
7275 
</pre><h3><a name="5.65_Library"></a>Library</h3><pre>
7276 
 
7277 
Fixes problems:
7278 
	- The computation of colors used by CMYK halftones was incorrect.
7279 
(gxclpath.c)
7280 
	- Some header files had preprocessor directives with a space before
7281 
the #, which pre-ANSI compilers don't accept.  (gpsync.h, gsjconf.h,
7282 
gsmemlok.h, gxsync.h, gxxfont.h)
7283 
	- A number of prototypes didn't use the Pn macros.  (gscolor2.h,
7284 
gscsepr.h, gsptype1.h, gspcolor.c)
7285 
	- A function definition wasn't formatted properly to be
7286 
recognized by ansi2knr.  (gxcht.c)
7287 
	- The algorithm for reducing single-plane CMYK halftones to binary
7288 
halftones was incorrect (bug introduced in 5.60).  (gxdither.c)
7289 
	- Writing a degenerate triangle or parallelogram in the band list
7290 
could cause a memory access error when rasterizing.  (gxclrast.c)
7291 
 
7292 
Adds per-band "colors used" information to the information for a saved page,
7293 
and procedures (gdev_prn_colors_used and gx_page_info_colors_used, defined
7294 
in gdevprn.h) for accessing it.  (gdevprn.h, gxband.h, gxclist.h, gdevprn.c,
7295 
gxclist.c)
7296 
 
7297 
Adds an internal device that appears to clients as a multi-plane color
7298 
device, and extracts a single plane for actual rendering.  This device will
7299 
be used to support planar output devices.  (gdevplnx.h, gsbitops.h,
7300 
gdevplnx.c)
7301 
 
7302 
Adds explicit color_info.text_anti_alias_bits and graphics_anti_alias_bits
7303 
values in the device state, obsoleting the get_alpha_bits procedure, and
7304 
makes them settable for all devices.  (gxdevcli.h, gxdevice.h, gdevabuf.c,
7305 
gdevdflt.c, gdevnfwd.c, gdevprn.c, gsdparam.c)
7306 
 
7307 
Reformats some code for readability.  (gxdither.c)
7308 
 
7309 
Adds a tentative API for a procedure that allows band rasterizing directly
7310 
into client's memory.  This is tentative because we may need to add the
7311 
ability to select an individual plane.  (gdevprn.h)
7312 
 
7313 
</pre>
7314 
 
7315 
<hr>
7316 
 
7317 
<h2><a name="Version5.64"></a>Version 5.64 (internal) (11/5/98)</h2>
7318 
 
7319 
<p>
7320 
This is another incremental fileset to fix problems for an external
7321 
customer.
7322 
 
7323 
<h3><a name="5.64_Incompatible_changes"></a>Incompatible changes</h3><pre>
7324 
 
7325 
(Drivers)
7326 
	- The output_page procedure of all drivers now must call
7327 
gx_finish_output_page as its last action.  (This doesn't affect ordinary
7328 
printer or raster file drivers, which already call a common procedure.)
7329 
 
7330 
</pre><h3><a name="5.64_Documentation"></a>Documentation</h3><pre>
7331 
 
7332 
Fixes problems:
7333 
	- The instructions for creating 'makefile' on Unix systems were
7334 
out of date.  (doc/Make.htm)
7335 
 
7336 
</pre><h3><a name="5.64_Procedures"></a>Procedures</h3><pre>
7337 
 
7338 
Fixes problems:
7339 
	- An omitted return statement caused genconf to malfunction on some
7340 
platforms.  (genconf.c)
7341 
	- The replacement of MAKEFILES by TOP_MAKEFILES accidentally changed
7342 
some comments that should not have been changed.  (bcwin32.mak, gs.mak,
7343 
msvctail.mak, openvms.mak, os2.mak, watcw32.mak, wctail.mak, winlib.mak)
7344 
 
7345 
</pre><h3><a name="5.64_Drivers"></a>Drivers</h3><pre>
7346 
 
7347 
Updates drivers to call gx_finish_output_page where needed.  (gdev3b1.c,
7348 
gdevcgm.c, gdevcp50.c, gdevpdf.c, gdevmswn.c, gdevpm.c, gdevps.c, gdevpx.c,
7349 
gdevsnfb.c, gdevwprn.c, gdevx.c)
7350 
 
7351 
</pre><h3><a name="5.64_Library"></a>Library</h3><pre>
7352 
 
7353 
Fixes problems:
7354 
	- The FontBBox workaround introduced in 5.63 didn't work properly.
7355 
(zchar1.c)
7356 
	- PageCount was getting incremented in the first device of a device
7357 
pipeline, rather than in the last one and being propagated back.
7358 
(gxdevice.h, gdevbbox.c, gdevdflt.c, gdevnfwd.c, gdevprn.c, gdevprna.c,
7359 
gsdevice.c)
7360 
 
7361 
</pre>
7362 
 
7363 
<hr>
7364 
 
7365 
<h2><a name="Version5.63"></a>Version 5.63 (internal) (11/4/98)</h2>
7366 
 
7367 
<p>
7368 
This fileset was driven by the development needs of an external customer,
7369 
primarily related to asynchronous rendering.  It includes a few bug fixes as
7370 
well.
7371 
 
7372 
<h3><a name="5.63_Incompatible_changes"></a>Incompatible changes</h3><pre>
7373 
 
7374 
(Procedures)
7375 
	- In the makefiles, changes the name MAKEFILES to TOP_MAKEFILES.
7376 
 
7377 
(Library)
7378 
	- The pis member of the Type 1 interpreter state was renamed in
7379 
order to catch places that assumed it was set.  (It may now be 0.)  This
7380 
should not affect any client code.
7381 
	- gx_page_queue_dnit and gx_page_queue_finish_dequeue now free the
7382 
band list information associated with the page_info in the queue entry.  An
7383 
explicit call of gx_page_queue_entry_free_page_info is now required to free
7384 
this information before any other call of gx_page_queue_entry_free.
7385 
 
7386 
</pre><h3><a name="5.63_Documentation"></a>Documentation</h3><pre>
7387 
 
7388 
Fixes problems:
7389 
	- devs.mak incorrectly referred to msdevs.mak rather than pcwin.mak.
7390 
(devs.mak)
7391 
 
7392 
</pre><h3><a name="5.63_Procedures"></a>Procedures</h3><pre>
7393 
 
7394 
Fixes problems:
7395 
	- There was a $ in the makefile that wasn't quoted.  (unix-gcc.mak)
7396 
	- The name MAKEFILES has a special meaning in GNU make which only be
7397 
disabled by using a directive that is a syntactic error for standard 'make'
7398 
implementations.  We had to work around this by changing all occurrences of
7399 
MAKEFILES to TOP_MAKEFILES.  (*.mak)
7400 
	- genconf did the wrong thing for modules with names shorter than
7401 
5 characters.  (genconf.c)
7402 
 
7403 
</pre><h3><a name="5.63_Drivers"></a>Drivers</h3><pre>
7404 
 
7405 
Updates the Canon BJC library, changing the names of the files.  This code
7406 
is still very preliminary.  (gdevbjcl.h, gdevbjcl.c)
7407 
 
7408 
</pre><h3><a name="5.63_Interpreter"></a>Interpreter</h3><pre>
7409 
 
7410 
Fixes problems:
7411 
	- Some Type 1 fonts have a plausible but incorrect (too-small)
7412 
FontBBox, causing some characters to be clipped.  We work around this by
7413 
enlarging the FontBBox and restarting the rasterization if the outline goes
7414 
outside the FontBBox.  (zchar1.c)
7415 
 
7416 
</pre><h3><a name="5.63_Library"></a>Library</h3><pre>
7417 
 
7418 
Fixes problems:
7419 
	- gx_default_strip_copy_rop didn't check for zero width before
7420 
dividing by it.  (gdevdrop.c)
7421 
	- Some places that called a procedure returning void tried to use
7422 
the return value.  (gximage.c, gximage1.c, gximage4.c)
7423 
	- The flatness for rendering Type 1 characters was set incorrectly
7424 
(always set to 0, producing best accuracy at extra cost) for characters not
7425 
in portrait orientation.  (gxtype1.c)
7426 
	- clist_begin_typed_image incorrectly used the memory manager client
7427 
name "clist_begin_image".  (gxclimag.c)
7428 
	- If a page queue entry was created without a page_info, the entry's
7429 
page_info wasn't initialized, probably causing a crash when attempting to
7430 
free the (nonexistent) associated band files later.  (gxpageq.c)
7431 
 
7432 
More fully supports the use of saved page_info objects for decoupling banded
7433 
rendering from band list construction:
7434 
	- Adds the ability to close and free the command list associated
7435 
with a saved page.  (gxclist.h, gxclist.c)
7436 
	- Separates freeing of the band list information associated with a
7437 
page queue entry from freeing the entry itself.  (gxpageq.h, gxpageq.c)
7438 
	- Changes the rendering thread for asynchronous band rendering so
7439 
that it doesn't try to free the band list information twice.  (gdevprna.c)
7440 
 
7441 
Implements triangles and parallelograms in the band list, primarily for the
7442 
sake of smooth shading.  (gxclpath.h, gxclist.c, gxclpath.c, gxclrast.c)
7443 
 
7444 
Adds a rectangle merging procedure, parallel to rectangle intersection.
7445 
This is needed for the FontBBox fix.  (gsrect.h)
7446 
 
7447 
Adds logic for keeping track of what pixel values are used in which bands.
7448 
Currently this information is not used for anything.  (gdevmrop.h, gsropt.h,
7449 
gxcldev.h, gxclpath.h, gxclrect.c, gxclpath.c, gxclimag.c)
7450 
 
7451 
Updates a few more files for readability and coding conventions.
7452 
(gxband.h, gxpageq.c)
7453 
 
7454 
Updates users of gxband.h and gxpageq.h.  (gdevprn.h, gxclist.h, gxpageq.h,
7455 
gdevprna.c, gxclpage.c, gxclread.c)
7456 
 
7457 
Moves the definition of the page queue into the (private) implementation
7458 
file.  (gxpageq.h, gxpageq.c)
7459 
 
7460 
</pre>
7461 
 
7462 
<hr>
7463 
 
7464 
<h2><a name="Version5.62"></a>Version 5.62 (internal) (10/31/98)</h2>
7465 
 
7466 
<p>
7467 
This fileset concludes this round of work on (primarily color) performance
7468 
improvement.  It contains almost no new bug fixes.
7469 
 
7470 
<h3><a name="5.62_Incompatible_changes"></a>Incompatible changes</h3><pre>
7471 
 
7472 
(Library)
7473 
	- Clients that load the CIE caches themselves must now reset the
7474 
procedures to the _from_cache values.  (This affects the PostScript
7475 
interpreter, but no ordinary library clients.)
7476 
	- gs_cie_compute_wbsd (an internal procedure) was changed to
7477 
gs_cie_compute_points_sd, with different parameters.
7478 
 
7479 
</pre><h3><a name="5.62_Documentation"></a>Documentation</h3><pre>
7480 
 
7481 
Adds information about problems with PDF files copied from Macintosh
7482 
environments.  (doc/Use.htm)
7483 
 
7484 
</pre><h3><a name="5.62_Drivers"></a>Drivers</h3><pre>
7485 
 
7486 
Adds a library for generating Canon BJC commands.  This code is subject to
7487 
change without notice!  (gdevcbjc.h, gdevcbjc.c)
7488 
 
7489 
</pre><h3><a name="5.62_Interpreter"></a>Interpreter</h3><pre>
7490 
 
7491 
Fixes problems:
7492 
	- The structures allocated for CIE RenderTables weren't marked
7493 
correctly for garbage collection, possibly mangling the output.  (zcie.c)
7494 
	- The CIE color space procedures weren't reset after the cache was
7495 
loaded, producing incorrect output now that it matters.  (zcie.c, zcrd.c)
7496 
 
7497 
</pre><h3><a name="5.62_Library"></a>Library</h3><pre>
7498 
 
7499 
Fixes problems:
7500 
	- Under some circumstances, a setbbox didn't take effect.
7501 
(gxpcopy.c)
7502 
	- The last step of CIE color mapping didn't clamp the very top end
7503 
of the range correctly.  (gsciemap.c)
7504 
 
7505 
Speeds up bits_replicate_horizontally a bit more.  (gsbitops.c)
7506 
 
7507 
Separates the CIE color mapping code from CIE cache loading, since the file
7508 
was getting too big.  (gscie.h, gscie.c, gsciemap.c)
7509 
 
7510 
Finishes adding the hooks for skipping steps during CIE color mapping when
7511 
possible, and implements one case of step-skipping.  (gscie.h, gscie.c,
7512 
gsciemap.c, gscrd.c)
7513 
 
7514 
Adds more tracing to the CIE color machinery.  (gscie.c)
7515 
 
7516 
Changes the default number of tiles for the colored halftone screen caches
7517 
from 1 to 4, substantially reducing cache turnover.  (gsht1.c, gshtx.c,
7518 
gxclrast.c)
7519 
 
7520 
</pre>
7521 
 
7522 
<hr>
7523 
 
7524 
<h2><a name="Version5.61"></a>Version 5.61 (internal) (10/28/98)</h2>
7525 
 
7526 
<p>
7527 
More rendering speedups, and fixes for many of the minor problems reported
7528 
in 5.50.
7529 
 
7530 
<h3><a name="5.61_Documentation"></a>Docmentation</h3><pre>
7531 
 
7532 
Fixes problems:
7533 
	- There were still some incorrect references to .txt files.
7534 
(gs.mak, libpng.mak)
7535 
	- Two references to libpng should have referred to libjpeg.
7536 
(gs.mak)
7537 
 
7538 
</pre><h3><a name="5.61_Procedures"></a>Procedures</h3><pre>
7539 
 
7540 
Fixes problems:
7541 
	- GNU 'make' treats the name MAKEFILES specially.  (unix-gcc.mak)
7542 
	- genconf didn't sort libraries in the right order.  (genconf.c)
7543 
	- The dependency for ansi2knr, and the invocation of ccgs, didn't
7544 
include the directory name.  (ccgs, unix-cc.mak)
7545 
	- The CC_ and CCAUX rules didn't invoke the new ccgs correctly.
7546 
(unix-cc.mak)
7547 
	- There was a typo in a comment.  (unixtail.mak)
7548 
	- gcc versions of the form 2.7.2.f.1 weren't recognized as having
7549 
the const-related code generation bug.  (unix-gcc.mak)
7550 
 
7551 
Documents workaround for bugs in newer IRIX compilers.  (doc/Make.htm)
7552 
 
7553 
</pre><h3><a name="5.61_Utilities"></a>Utilities</h3><pre>
7554 
 
7555 
Fixes problems:
7556 
	- ansi2knr didn't understand the new formatting of the enum_ptrs and
7557 
reloc_ptrs procedures, which now don't have a left brace on the same line as
7558 
the macro call that defines the procedure.  (ansi2knr.c)
7559 
 
7560 
Adds a utility for viewing MIFF files.  (lib/viewmiff.ps)
7561 
 
7562 
</pre><h3><a name="5.61_Drivers"></a>Drivers</h3><pre>
7563 
 
7564 
Fixes problems:
7565 
	- The X driver could report a depth (e.g., 15 bits) that caused
7566 
problems elsewhere.  (gdevxini.c)
7567 
	- With the X driver, if the display is grey-scale or does not have
7568 
enough colors to allocate a color ramp, Ghostscript crashed in
7569 
x_map_color_rgb due to an array index overflow.  (gdevx.c)
7570 
	- The PDF writer used the X scaling of fonts to determine the point
7571 
size rather than the Y scaling, which gives the wrong result for synthetic
7572 
condensed fonts.  (gdevpdft.c)
7573 
	- If the last thing written before a flushpage was text, the X
7574 
driver might fail to display it.  (gdevx.c)
7575 
	- The PDF writer didn't free the streams created for image
7576 
compression, causing a memory leak.  (gdevpsdf.c)
7577 
	- pswrite didn't output a command to set the page size.  (gdevps.c)
7578 
 
7579 
Removes an obsolete comment and commented-out line.  (gdevxalt.c)
7580 
 
7581 
</pre><h3><a name="5.61_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
7582 
 
7583 
Fixes problems:
7584 
	- Explicit (not resource) Indexed color spaces caused an error.
7585 
(lib/pdf_draw.ps)
7586 
 
7587 
</pre><h3><a name="5.61_Streams"></a>Streams</h3><pre>
7588 
 
7589 
Fixes problems:
7590 
	- The PNGPredictor filters didn't free their row buffer.  (spngp.c)
7591 
	- The PNGPredictor filters didn't handle end-of-data correctly.
7592 
(spngp.c)
7593 
 
7594 
Changes the eexec filter to ignore % characters when reading
7595 
ASCIIHex-encoded data.  This is contrary to the Adobe documentation, but one
7596 
badly coded prologue requires it.  (seexec.c)
7597 
 
7598 
</pre><h3><a name="5.61_Library"></a>Library</h3><pre>
7599 
 
7600 
Fixes problems:
7601 
	- The definition of TRANSPARENCY_PER_H_P was in the wrong module,
7602 
causing it to be ignored.  (gdevmrop.h, gdevdrop.c)
7603 
	- There was a typo in the tracing output for init_tile_cursor.
7604 
(gxcht.c)
7605 
	- gx_get_bits_copy computed the standard raster incorrectly if
7606 
the destination used a different color representation from the source,
7607 
causing multi-line transfers to be done incorrectly.  (gdevdgbr.c)
7608 
	- Parentheses were missing around the use of width_bits in the
7609 
definition of bitmap_raster, possibly causing incorrect computation.
7610 
(gxbitmap.h)
7611 
	- When rendering a Pattern, a singular CTM caused an error even if
7612 
the Pattern was empty.  (gspcolor.c)
7613 
	- The lookup table wasn't allocated for device-originated CRDs.
7614 
(gscrdp.c)
7615 
	- If an error occurred when setting up to rasterize a band,
7616 
data_bits could be freed without ever having been initialized.  (gxclrast.c)
7617 
	- Processing a CIE-color image with a color space different from the
7618 
current color space caused an error.  (gscie.c)
7619 
	- The speedup for bits_replicate_horizontally had an algorithm
7620 
error, producing incorrect output.  (gsbitops.c)
7621 
 
7622 
Splits up the memory device implementation of RasterOp, since the file was
7623 
getting too large.  (gdevmem.h, gdevm1.c, gdevm8.c, gdevm16.c, gdevm24.c,
7624 
gdevm32.c, gdevmrop.c [deleted], gdevmr1.c, gdevmr2n.c, gdevmr8n.c,
7625 
gsnorop.c)
7626 
 
7627 
Cleans up a little formatting.  (gsbittab.h)
7628 
 
7629 
Speeds up the default RasterOp implementation some more.  (gdevdgbr.c,
7630 
gdevdrop.c, gdevmem.c)
7631 
 
7632 
Speeds up testing whether a given halftone level is already present in its
7633 
cache.  (gzht.h, gxht.c)
7634 
 
7635 
Speeds up 1-bit CMYK halftones a bit more.  (gxcht.c)
7636 
 
7637 
Makes filling always use the (much faster) trapezoid-based algorithm if the
7638 
region being filled is a rectangle.  (gxfill.c)
7639 
 
7640 
</pre>
7641 
 
7642 
<hr>
7643 
 
7644 
<h2><a name="Version5.60"></a>Version 5.60 (internal) (10/18/98)</h2>
7645 
 
7646 
<p>
7647 
This fileset incorporates many performance enhancements for 1-bit CMYK
7648 
devices, especially for PCL 5c interpretation.
7649 
 
7650 
<p>
7651 
This fileset divides the files into subdirectories.  In the lists of changed
7652 
files, files with no explicit subdirectory name are in the src subdirectory.
7653 
The revised OpenVMS and OS/2 makefiles have not been tested.
7654 
 
7655 
<h3><a name="5.60_Incompatible_changes"></a>Incompatible changes</h3><pre>
7656 
 
7657 
(Procedures)
7658 
	- The instructions for font compilation in doc/Fonts.htm are
7659 
different.
7660 
	- The fileset has been split into multiple directories; the source
7661 
code and makefiles are now in src/.
7662 
	- The top-level makefile requires a definition for BINDIR for the
7663 
directory to hold the final executable.
7664 
	- Every .dev rule of the form
7665 
		xxx.dev: &lt;list&gt;
7666 
			$(SETyyy) xxx &lt;items&gt;
7667 
			$(ADDMOD) xxx &lt;items&gt;
7668 
must be changed to
7669 
		$(DD)xxx.dev: &lt;list&gt;
7670 
			$(SETyyy) $(DD)xxx &lt;items&gt;
7671 
			$(ADDMOD) $(DD)xxx &lt;items&gt;
7672 
(DD for drivers, PSD for PostScript/PDF-interpreter features, GLD for
7673 
graphics library features).  Every -include and -replace option in the
7674 
makefiles rules, and every element of FEATURE_DEVS and DEVICE_DEVS*, must be
7675 
changed similarly.  This is very unfortunate, especially since people
7676 
editing FEATURE_DEVS and DEVICE_DEVS* must now know which subsystem
7677 
implements a particular feature; but we tried 3 different ways to get the
7678 
generated .dev files out of the top-level directory, and this was the only
7679 
one we could make work.
7680 
	- Top-level makefiles must define both MAKEFILE and MAKEFILES,
7681 
the latter to include any subsidiary makefiles that define configuration
7682 
parameters.  Dependencies on $(MAKEFILE) must be changed to $(MAKEFILES).
7683 
	- Color space objects now must either be allocated with the
7684 
gs_cspace_build_ procedures or initialized with the gs_cspace_init_
7685 
procedures: building color spaces "by hand" is no longer allowed.
7686 
 
7687 
(Library)
7688 
	- There are new required elements of the gs_image_type_t structure.
7689 
	- The binary and colored variants of gx_device_halftone have
7690 
changed.  (No APIs are affected.)
7691 
	- If a device changes its (effective) color mapping algorithm other
7692 
than as a side effect of put_params, it must call
7693 
gx_device_decache_colors(dev).
7694 
 
7695 
</pre><h3><a name="5.60_Documentation"></a>Documentation</h3><pre>
7696 
 
7697 
Fixes problems:
7698 
	- Some files still referred to .doc files rather than .htm.
7699 
(gsiparam.h, imain.h)
7700 
	- Version 5.50 was incorrectly identified as a beta version.
7701 
(doc/News.htm)
7702 
	- The instructions for cross-compilation were seriously
7703 
incomplete.  (doc/Make.htm)
7704 
 
7705 
Adds a text-only README file.  (doc/README)
7706 
 
7707 
Updates the instructions for font compilation.  (doc/Fonts.htm)
7708 
 
7709 
Updates the instructions for device and feature selection.  (doc/Make.htm)
7710 
 
7711 
Adds material on 8.3 file names, compiler warning messages, and graphics
7712 
library error codes to the C style guide.  (doc/C-style.htm)
7713 
 
7714 
Adds a note about gx_device_decache_colors.  (doc/Drivers.htm)
7715 
 
7716 
Improves formatting slightly.  (doc/Install.htm, doc/Use.htm)
7717 
 
7718 
</pre><h3><a name="5.60_Procedures"></a>Procedures</h3><pre>
7719 
 
7720 
Fixes problems:
7721 
	- The Unix install script referred to an obsolete ps2image.ps file.
7722 
(unixinst.mak)
7723 
	- The Unix CC script had some duplicated definitions.  (unix-cc.mak)
7724 
	- The DVX makefile referred to int.mak in GLSRC rather than PSSRC.
7725 
(dvx-gcc.mak)
7726 
	- rollconv.ps wasn't installed with the other utilities.
7727 
(unixinst.mak)
7728 
	- Some definitions of MAKEFILE lacked a directory name.  (os2.mak,
7729 
unix-cc.mak, unixansi.mak, watclib.mak)
7730 
	- There were inappropriate dependencies on a file with the literal
7731 
name `makefile'.  (bcwin32.mak, gs.mak, watc32.mak)
7732 
	- Unix systems didn't use -fomit-frame-pointer when possible.
7733 
(unix-cc.mak, unix-gcc.mak, unixansi.mak, unix-end.mak)
7734 
 
7735 
Restructures the source files into multiple subdirectories:
7736 
	src/ - files needed at build time: *.mak, *.h, *.c, *.cpp, *.icx, *.rc,
7737 
		*.cmd, ??.bat, *.com, *.rps, *.dif, *.cfg
7738 
	lib/ - files needed at run time: *_*.ps, *.ppd, *.upp, *.bat
7739 
	doc/ - documentation other than man pages: *.htm, *.txt
7740 
	man/ - man pages: *.1
7741 
	examples/ - sample input data: *.ps, *.eps, *.pdf
7742 
Also incorporates the font compilation makefile into the main makefile,
7743 
since the former now depends on parameters defined in the latter.  (*.mak)
7744 
 
7745 
****** HAVEN'T SETTLED HOW TO HANDLE .ico FILES ******
7746 
 
7747 
NOTE: Still need to update: openvms.mak, os2.mak.
7748 
 
7749 
Updates the Unix install script for the directory split.  (unixinst.mak)
7750 
 
7751 
Updates the font compilation makefile rules to handle alternate directories.
7752 
(cfonts.mak, int.mak)
7753 
 
7754 
****** PROBLEM: cfonts.mak NEEDS CCFONT, BUT int.mak NEEDS CF* FOR ADDING
7755 
ONE'S OWN FONTS ******
7756 
 
7757 
Removes useless dependencies on gs_*.ps files.  (int.mak)
7758 
 
7759 
Moves the .dev files into the GEN directories where they belong.  (gs.mak,
7760 
dvx-tail.mak, msvclib.mak, openvms.mak, os2.mak, pcwin.mak, ugcclib.mak,
7761 
unixhead.mak, unixtail.mak, unix-end.mak, watc.mak, watclib.mak, winlib.mak,
7762 
echogs.c, genconf.c) ****** NO_OP FOR dvx HASN'T BEEN VERIFIED ******
7763 
NOTE: Still to do:
7764 
src/bcwin32.mak
7765 
src/dvx-gcc.mak
7766 
src/dvx-head.mak
7767 
src/dvx-tail.mak
7768 
src/msvc32.mak
7769 
src/msvccmd.mak
7770 
src/msvclib.mak
7771 
src/msvctail.mak
7772 
src/openvms.mak
7773 
src/os2.mak
7774 
src/pcwin.mak
7775 
src/ugcclib.mak
7776 
src/watc.mak
7777 
src/watclib.mak
7778 
src/watcw32.mak
7779 
src/wccommon.mak
7780 
src/wctail.mak
7781 
src/winint.mak
7782 
src/winlib.mak
7783 
 
7784 
Adds a new BINDIR directory for the final executable (and associated files
7785 
like resource files).  After building, only the contents of BINDIR and lib
7786 
are needed for execution.  (gs.mak, unix-end.mak) ****** NEED TO DO
7787 
openvms.mak, os2.mak, OTHER PC MAKEFILES ******
7788 
 
7789 
Updates libpng to version 1.0.2.  (libpng.mak)
7790 
 
7791 
</pre><h3><a name="5.60_Utilities"></a>Utilities</h3><pre>
7792 
 
7793 
Adds a new switch, -b, to echogs.  (echogs.c)
7794 
 
7795 
</pre><h3><a name="5.60_Drivers"></a>Drivers</h3><pre>
7796 
 
7797 
Updates the PDF writer for the change in color space initialization.
7798 
(gdevpdfi.c)
7799 
 
7800 
Speeds up the pkmraw driver a bit more.  (gdevpbm.c)
7801 
 
7802 
Updates some drivers to use the new CMYK color mapping procedures.
7803 
(gdevpbm.c, gdevpcx.c, gdevxalt.c)
7804 
 
7805 
Updates one driver that maintained its own color cache.  (gdevxalt.c)
7806 
 
7807 
Removes some compiler warnings (mostly about "uninitialized" variables).
7808 
(gdevpdfo.c, gdevpdft.c, gdevpx.c)
7809 
 
7810 
Adds another driver for the H-P Color LaserJet 5/5M.  (gdevcljc.c)
7811 
 
7812 
</pre><h3><a name="5.60_Platforms"></a>Platforms</h3><pre>
7813 
 
7814 
Fixes problems:
7815 
	- A change in the MetroWerks C compiler caused the hypot function
7816 
to become declared.  (math_.h)
7817 
 
7818 
</pre><h3><a name="5.60_Interpreter"></a>Interpreter</h3><pre>
7819 
 
7820 
Updates the compiled font code for updates in the type declarations.
7821 
(iccfont.c, icfontab.c)
7822 
 
7823 
Cleans up some more formatting and macros.  (ccfont.h, errors.h, icfontab.c,
7824 
interp.c)
7825 
 
7826 
Updates clients for the change in color space initialization.  (zcsdevn.c,
7827 
zcsindex.c, zcspixel.c, zcssepr.c, zpcolor.c)
7828 
 
7829 
Updates the memory validator for the addition of the large-block freelist.
7830 
(ilocate.c)
7831 
 
7832 
</pre><h3><a name="5.60_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
7833 
 
7834 
Fixes problems:
7835 
	- If the final %%EOF was followed by any blanks before the newline,
7836 
an error would occur.  (lib/pdf_main.ps)
7837 
 
7838 
</pre><h3><a name="5.60_Streams"></a>Streams</h3><pre>
7839 
 
7840 
Fixes problems:
7841 
	- The LZWDecode filter wouldn't handle a file that had 4096-256-2+1
7842 
data items before the reset.  (We think this is a bug in the file, but
7843 
Acrobat accepts it.)  (slzwx.h, slzwd.c)
7844 
 
7845 
Rearranges code slightly to improve readability.  (spdiff.c)
7846 
 
7847 
</pre><h3><a name="5.60_Library"></a>Library</h3><pre>
7848 
 
7849 
Fixes problems:
7850 
	- Changing the resolution (or any other parameter) of the bbox
7851 
device from the command line caused an invalid memory access.  (gdevbbox.c)
7852 
	- When banding, if the very first drawing operation involved a
7853 
halftone with non-zero phase, an arithmetic exception occurred.
7854 
(gxclpath.c)
7855 
	- When banding, the X offset of the band was negated, producing
7856 
incorrect output when placing multiple source pages on a single output page.
7857 
(gxclread.c)
7858 
	- When banding, rotated images crossing band boundaries produced
7859 
incorrect output, because the subrectangle X value was inconsistent with the
7860 
amount of data transmitted.  (gxclimag.c)
7861 
	- When banding, the clipping check didn't take interpolation support
7862 
into account.  (gxclimag.c)
7863 
	- The clipping check for banding used (int) to take the floor of
7864 
floating point values, which is wrong for negative values.  (gxclimag.c)
7865 
	- The bounding box device didn't return an empty bounding
7866 
rectangle if nothing had been written to it.  (gdevbbox.c)
7867 
	- A value was conditional on a debugging switch even if DEBUG wasn't
7868 
defined.  (gxcht.c)
7869 
	- Filling a region with a large colored halftone, a non-default
7870 
RasterOp, and a non-null RasterOp source could cause only part of the region
7871 
to be filled.  (gxcht.c) ****** NOT FIXED YET ******
7872 
	- Type 1 fonts that used very large numbers (&gt;= 2^19) caused a
7873 
rangecheck.  We've fixed this for the only case that seems to matter, namely
7874 
&lt;very-large-number&gt; &lt;number&gt; div.  (gxtype1.h, gstype1.c)
7875 
	- The memory-based band list allocator failed to return an error
7876 
code from memfile_next_blk.  (gxclmem.c)
7877 
	- When recovering from a low-band-list-memory condition while
7878 
writing an image, the record of the current image enumeration
7879 
(cdev-&gt;image_enum_id) wasn't updated.  (gxclimag.c)
7880 
	- The estimated memory requirement for the band list rasterizer was
7881 
too small.  (gdevprna.c)
7882 
 
7883 
Adds some tracing to mask clipping.  (gxclipm.c)
7884 
 
7885 
Speeds up masked images by doing mask clipping before halftoning, using a
7886 
more efficient mask scanning algorithm, and checking for vertical blocks of
7887 
1s.  (gxclipm.c)
7888 
 
7889 
Speeds up ImageType 4 images greatly by incorporating the color-key check
7890 
into the ImageType 1 rendering code.  NOTE: the 12-bit case has not been
7891 
tested.  (gxcpath.h, gximage.h, gxi12bit.c, gxicolor.c, gxifast.c,
7892 
gxiinit.c, gximage4.c, gximono.c, gxiscale.c)
7893 
 
7894 
Implements passing ImageType 4 images (and potentially others) through the
7895 
band list.  This involves adding image parameter writing and reading
7896 
procedures to the image type structure.  (gscdefs.h, gsiparam.h, gsiparm2.h,
7897 
gsiparm4.h, gsmatrix.h, gxclpath.h, gxiparam.h, gconf.c, genconf.c,
7898 
gsmatrix.c, gxclimag.c, gxclist.c, gxclpath.c, gxclrast.c, gxiinit.c,
7899 
gximage2.c, gximage3.c, gximage4.c)
7900 
 
7901 
Splits off the generic image support code from the ImageType 1 code.
7902 
(gxiinit.c [deleted], gximage.c, gximage1.c, gxipixel.c)
7903 
 
7904 
Removes some vestiges of support for 16-bit environments.  (gsmisc.c)
7905 
 
7906 
Implements bit-planar images, important for PCL interpretation.
7907 
(gsiparam.h, gximage.h, gxiparam.h, gdevddrw.c, gdevpdfi.c, gdevps.c,
7908 
gsimage.c, gxclimag.c, gxidata.c, gximage.c, gxipixel.c) ****** NOT TESTED
7909 
YET ******
7910 
 
7911 
Makes closing a memory device that owns its bitmap set the bitmap pointer to
7912 
0, for the sake of an application that doesn't handle is_open properly.
7913 
(gdevmem.c)
7914 
 
7915 
Speeds up floating-point emulation for single-precision add, subtract, and
7916 
multiply.  (gsfemu.c)
7917 
 
7918 
Speeds up sampling of transfer functions.  (gshtx.c)
7919 
 
7920 
Makes the CIE cache used fixed-point values if the CPU has slow floating
7921 
point.  (gscie.h)
7922 
 
7923 
Adds a unique ID to color spaces to allow fast detection of reselecting the
7924 
same color space.  This matters for certain client code that repeatedly
7925 
reselects the same color space, since selecting certain color spaces is
7926 
expensive.  (gscpixel.h, gscspace.h, gxcspace.h, gscolor2.c, gscpixel.c,
7927 
gscscie.c, gscspace.c, gspcolor.c, gsstate.c, gximage2.c) ****** NEED TO FIX
7928 
gxclrast.c TO ALLOC INDEXED COLOR SPACE ******
7929 
 
7930 
Speeds up setting Pattern color spaces, by bypassing the install code for
7931 
the base space.  (gspcolor.c)
7932 
 
7933 
Adds a unique ID to CRDs to allow fast detection of reselecting the same
7934 
CRD.  This matters for certain client code that does this repeatedly.
7935 
(gscie.h, gscrd.h, gscrd.c)
7936 
 
7937 
Detects setting the CRD to one with identical PQR components, and bypasses
7938 
an expensive setup step.  (gscie.c)
7939 
 
7940 
Speeds up converting pixels between representations (gx_get_bits_copy) for
7941 
devices with up to 4 bits per pixel, by caching the pixel values.
7942 
(gdevdgbr.c)
7943 
 
7944 
Speeds up the slow default RasterOp algorithm a little.  (gdevdrop.c)
7945 
 
7946 
Defines standard mapping procedures for 1-bit-per-component CMYK colors.
7947 
Other code can then test for the presence of these procedures and use more
7948 
efficient algorithms.  (gxdevice.h, gxcmap.c)
7949 
 
7950 
Speeds up some algorithms in the bbox device by making some recursive calls
7951 
use a pure color rather than a client-supplied one.  (gdevbbox.h, gdevbbox.c)
7952 
 
7953 
Adds a cache for the black and white pixel values to the device structure.
7954 
(gxdevcli.h, gxdevice.h, gdevalph.c, gdevnfwd.c, gsdparam.c, gxdcolor.c)
7955 
 
7956 
Makes the code for colored halftones a little more readable.  (gxcht.c)
7957 
 
7958 
Speeds up color mapping for CMYK devices by copying the color mapping
7959 
procedures into forwarding devices, when applicable.  (gdevcmap.c,
7960 
gdevmem.c, gsdevice.c, gxclip.c)
7961 
 
7962 
Removes some compiler warnings (mostly about "uninitialized" variables).
7963 
(gxcldev.h, gsdevmem.c, gsshade.c, gstype42.c, gxclpath.c, gxfill.c,
7964 
gximage3.c, gxpath2.c, gxpcopy.c)
7965 
 
7966 
For the benefit of certain client code that commonly sets a CRD and then
7967 
doesn't use it, makes loading of the joint CIE caches lazy (at the library
7968 
level).  (gscie.h, gscie.c)
7969 
 
7970 
Changes CIE color restriction from a macro to a procedure, since it is
7971 
rarely used.  (gscie.c)
7972 
 
7973 
Adds code and structures for detecting when CIE Decode and/or Encode
7974 
procedures are simply linear transformations, which would allow collapsing
7975 
them into the adjacent matrix, but doesn't actually do the collapsing.
7976 
(gscie.h, gscie.c)
7977 
 
7978 
Speeds up color halftoning by pre-computing the mask of planes that need to
7979 
be halftoned, and preconverting multi-plane halftones to binary or solid
7980 
colors when possible.  (gsdcolor.h, gxcht.c, gxdcolor.c, gxdither.c, gxht.c)
7981 
 
7982 
Optimizes color mapping for 1-bit-per-component CMYK halftones.  (gxcht.c)
7983 
 
7984 
Optimizes null RasterOp sources for black = 1 as well as black = 0.
7985 
(gxdcolor.c)
7986 
 
7987 
Modifies the standard allocator so it keeps track of large free blocks as
7988 
well as small ones, and uses them to satisfy requests when appropriate.
7989 
(gxalloc.h, gsalloc.c)
7990 
 
7991 
Speeds up the horizontal bitmap replication code a bit.  (Much more is
7992 
possible.)  (gsbitops.c)
7993 
 
7994 
Changes gs_image_max_planes to gs_image_max_components to reflect its
7995 
function more accurately.  (gdevddrw.c)
7996 
 
7997 
</pre>
7998 
 
7999 
<hr>
8000 
 
8001 
<h2><a name="Version5.50"></a>Version 5.50 (9/16/98)</h2>
8002 
 
8003 
<p>
8004 
This is the first public release since 5.10.  See
8005 
<a href="Current.htm">the release summary</a>
8006 
for a list of major additions and changes.
8007 
 
8008 
<h3><a name="5.50_Documentation"></a>Documentation</h3><pre>
8009 
 
8010 
Fixes problems:
8011 
	- Many files still referred to .txt rather than .htm files.
8012 
(DLL.htm, Make.htm, New-user.htm, Readme.htm, bcwin32.mak, cfonts.mak,
8013 
devs.mak, dvx-gcc.mak, dwmainc.cpp, gs-vms.hlp, gxdevcli.h, gxdevice.h,
8014 
int.mak, jpeg.mak, libpng.mak, msvc32.mak, msvclib.mak, openvms.mak,
8015 
os2.mak, unix-cc.mak, unix-gcc.mak, unixansi.mak, watc.mak, watcw32.mak,
8016 
wccommon.mak, zlib.mak)
8017 
 
8018 
Notes that ps2epsi.1 and ps2epsi.txt may be inconsistent or obsolete.
8019 
(ps2epsi.1, ps2epsi.txt)
8020 
 
8021 
Adds a reference to Thomas Merz's Ghostscript manual.  (Readme.htm)
8022 
 
8023 
Adds instructions for making RPMs.  (Install.htm, Make.htm)
8024 
 
8025 
Changes the URL for post-release notes.  (Bug-form.htm, Make.htm,
8026 
New-user.htm)
8027 
 
8028 
Notes problems with Watcom compilation.  (Make.htm)
8029 
 
8030 
</pre><h3><a name="5.50_Procedures"></a>Procedures</h3><pre>
8031 
 
8032 
Fixes problems:
8033 
	- On Unix systems, the documentation files didn't get installed by
8034 
`make install'.  (unixinst.mak)
8035 
	- $() was missing around MAKEFILE in a Windows makefile.
8036 
(msvc32.mak)
8037 
	- The dfax drivers didn't include all the necessary files in the
8038 
linker list.  (contrib.mak)
8039 
	- The MSVC makefiles didn't allow building the executable in a
8040 
different directory.  (bcwin32.mak, gs.mak, lib.mak, msvc32.mak,
8041 
msvccmd.mak, msvclib.mak, msvctail.mak, os2.mak, watcw32.mak, winint.mak,
8042 
winlib.mak)
8043 
	- The default build directory for the Borland compiler was debugobj
8044 
rather than obj.  (bcwin32.mak)
8045 
 
8046 
Adds a patch file and some specification files for making RPMs.  (gs.rps,
8047 
gs-fonts.rps, rpm-conf.dif)
8048 
 
8049 
Removes the docs target in the makefile, since this function is now
8050 
performed by another program.  (unix-end.mak)
8051 
 
8052 
</pre><h3><a name="5.50_Drivers"></a>Drivers</h3><pre>
8053 
 
8054 
Fixes problems:
8055 
	- The jpeg drivers caused a memory access error.  (bug introduced in
8056 
5.20 by an incorrectly made fix) (gdevjpeg.c)
8057 
	- The x11cmyk driver implemented map_rgb_color, which it should not
8058 
do.  (gdevxalt.c)
8059 
 
8060 
Updates a high-level driver for the addition of the bit-planar image format.
8061 
(gdevps.c)
8062 
 
8063 
</pre><h3><a name="5.50_Utilities"></a>Utilities</h3><pre>
8064 
 
8065 
Fixes problems:
8066 
	- echogs -h didn't work in environments where char is signed.
8067 
(echogs.c)
8068 
 
8069 
</pre><h3><a name="5.50_Platforms"></a>Platforms</h3><pre>
8070 
 
8071 
Fixes problems:
8072 
	- MSVC++ 5.0 produced incorrect code with TDEBUG=0.  We "fixed" this
8073 
problem by noting in the makefile that TDEBUG must be left set to 1.
8074 
(msvc32.mak, msvclib.mak)
8075 
 
8076 
Updates the icons for the MS Windows and OS/2 platforms.  (gsgraph.icx,
8077 
gsos2.icx, gspmdrv.icx, gstext.icx)
8078 
 
8079 
</pre><h3><a name="5.50_Interpreter"></a>Interpreter</h3><pre>
8080 
 
8081 
Fixes problems:
8082 
	- setpagedevice didn't update the state correctly when switching to
8083 
a new type of device (different OutputDevice value).  (gs_setpd.ps)
8084 
	- The interpreter's initialization depended on BSS being initialized
8085 
to 0.  (files.h, zfile.c)
8086 
 
8087 
Removes all references to reloc_struct_ptr other than in gsstruct.h.
8088 
(igcref.c)
8089 
 
8090 
Adds DEBUG tracing for pdfmarks.  (gs_pdfwr.ps)
8091 
 
8092 
Disables TEST code for release.  (zcrd.c, zfdcte.c)
8093 
 
8094 
</pre><h3><a name="5.50_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
8095 
 
8096 
Fixes problems:
8097 
	- Some third-party software still referred to the obsolete #?
8098 
procedure.  (pdf_main.ps)
8099 
	- Destinations with string names weren't properly converted to
8100 
pdfmarks.  (pdf_main.ps)
8101 
	- Destinations with S = /Named weren't supported.  (pdf_main.ps)
8102 
 
8103 
</pre><h3><a name="5.50_Library"></a>Library</h3><pre>
8104 
 
8105 
Fixes problems:
8106 
	- Dropout prevention wasn't applied to landscape image masks.
8107 
(gximono.c)
8108 
	- When using async rendering, the renderer's allocator was allocated
8109 
with the wrong allocator.  (gdevprna.c)
8110 
	- gx_strip_bitmap and gx_device_mask_clip didn't have proper GC
8111 
descriptors, causing crashes if a GC occurred while rendering an ImageType 3
8112 
or 4 image.  (gsstruct.h, gxbitmap.h, gxclip2.h, gxclipm.h, gxmclip.h,
8113 
gspcolor.c, gxclipm.c, gxmclip.c)
8114 
	- The buffer for printer devices wasn't reallocated properly for
8115 
async devices when the page size changed.  We aren't entirely comfortable
8116 
with the fix, but it's the best we've got right now.  (gdevprn.c)
8117 
	- Some files wouldn't compile with -dNOPRIVATE.  (gxcspace.h,
8118 
gscdevn.c, gscolor2.c, gscscie.c, gscsepr.c)
8119 
	- gp_semaphore_close and gp_monitor_close were defined as not
8120 
returning an error code.  (gpsync.h, gp_nsync.c, gp_posem.c, gp_semon.c,
8121 
gp_win32.c)
8122 
	- Initialization code depended on BSS being initialized to 0.
8123 
(gsiodev.c)
8124 
	- The special PCL color mapping device didn't handle CMYK devices
8125 
correctly in other than "identity" mode.  (gdevcmap.c)
8126 
 
8127 
Cleans up a little formatting.  (gscie.h, gscpixel.c, gxmclip.c)
8128 
 
8129 
Removes all references to reloc_struct_ptr other than in gsstruct.h.
8130 
(gsstruct.h, gsalloc.c, gsdevice.c, gsfont.c, gxcpath.c)
8131 
 
8132 
Patches the async code so that it allocates twice as much space for the
8133 
renderer as should be needed, to deal with sandbars.  (gdevprna.c)
8134 
 
8135 
</pre>
8136 
 
8137 
<hr>
8138 
 
8139 
<h2><a name="Version5.40"></a>Version 5.40 (beta) (9/10/98)</h2>
8140 
 
8141 
<p>
8142 
A few more fixes.  This is intended as the candidate fileset for the 5.50
8143 
release.
8144 
 
8145 
<h3><a name="5.40_Documentation"></a>Documentation</h3><pre>
8146 
 
8147 
Fixes problems:
8148 
	- The current GNU Ghostscript version was documented as 3.33, not
8149 
4.03.  (New-user.htm)
8150 
	- The ansi2knr usage documentation didn't mention --filename.
8151 
(ansi2knr.1)
8152 
	- A projected completion date was too optimistic.  (ps2pdf.1)
8153 
 
8154 
Replaces all documentation files with new HTML versions.  (*.txt [deleted],
8155 
*.htm, index.html, imainarg.c)
8156 
 
8157 
Adds a contributed set of Emacs macros useful for working with Ghostscript
8158 
documentation.  (gsdoc.el)
8159 
 
8160 
Changes the version and date format slightly in one file for consistency.
8161 
(gs-vms.hlp)
8162 
 
8163 
</pre><h3><a name="5.40_Procedures"></a>Procedures</h3><pre>
8164 
 
8165 
Adds a make target (make docs) to touch up documentation files before a
8166 
release.  (unix-end.mak)
8167 
 
8168 
</pre><h3><a name="5.40_Utilities"></a>Utilities</h3><pre>
8169 
 
8170 
Removes the long-obsolete ps2image.ps utility.  (ps2image.ps [deleted])
8171 
 
8172 
</pre><h3><a name="5.40_Drivers"></a>Drivers</h3><pre>
8173 
 
8174 
Adds a driver for the Color LaserJet 5.  (devs.mak, gdevclj.c)
8175 
 
8176 
</pre><h3><a name="5.40_Platforms"></a>Platforms</h3><pre>
8177 
 
8178 
Fixes problems:
8179 
	- Blanks in command lines weren't handled properly.  (dwmain.cpp,
8180 
dwmainc.cpp)
8181 
 
8182 
</pre><h3><a name="5.40_Library"></a>Library</h3><pre>
8183 
 
8184 
Fixes problems:
8185 
	- 16-bit devices didn't convert colors to RGB correctly.
8186 
(gdevm16.c)
8187 
	- 16- and 32-bit RasterOp didn't work, because pack_from_standard
8188 
didn't handle depths greater than 8.  (gdevdrop.c)
8189 
	- RasterOps with devices with non-standard color representation
8190 
sometimes substituted black or white for the source or target.  (gdevdrop.c)
8191 
	- The non-orthogonal case of Axial shading executed the axial-case
8192 
code as well.  (gxshade1.c)
8193 
	- copy_color on 4-bit-deep memory devices did an unnecessary
8194 
fit_copy check.  (gdevm4.c)
8195 
	- An upcast was missing.  (gdevbbox.c)
8196 
	- View clipping was applied to internal devices, incorrectly.
8197 
(gspath.c)
8198 
 
8199 
Revises the implementation of shading so as to reduce the use of macros,
8200 
update formatting, and help prepare for PatternType 2 patterns.  (gsshade.h,
8201 
gxshade.h, gxshade4.h, gscolor3.c, gsshade.c, gxshade.c, gxshade1.c,
8202 
gxshade4.c, gxshade6.c)
8203 
 
8204 
</pre>
8205 
 
8206 
<hr>
8207 
 
8208 
<h2><a name="Version5.39"></a>Version 5.39 (beta) (9/8/98)</h2>
8209 
 
8210 
<p>
8211 
A couple more small fixes.
8212 
 
8213 
<h3><a name="5.39_Drivers"></a>Drivers</h3><pre>
8214 
 
8215 
Fixes problems:
8216 
	- The pkm[raw] drivers didn't work with 32-bit pixels.  (gdevpbm.c)
8217 
 
8218 
Adds (fake) 8-, 16-, and 32-bit X11 CMYK devices, for debugging.
8219 
Unfortunately, the 16- and 32-bit devices consume the hardware color map and
8220 
then no longer behave reasonably; the 8-bit device produces output with
8221 
garbled colors (fixed in 5.40).  (devs.mak, gdevxalt.c)
8222 
 
8223 
</pre><h3><a name="5.39_Library"></a>Library</h3><pre>
8224 
 
8225 
Fixes bugs:
8226 
	- All banded devices caused a memory access error.  (bug introduced
8227 
in 5.38)  (gsstate.c)
8228 
	- The special color mapping device didn't update its state after
8229 
put_params.  (gdevcmap.c)
8230 
	- RasterOp on 8-bit non-gray-scale devices didn't handle filling
8231 
with constant 0 or 1 properly.  (gdevmrop.c)
8232 
	- The halftone machinery didn't switch from full-size to strip
8233 
halftones early enough, possibly allocating very large halftone data
8234 
structures.  (gshtscr.c)
8235 
	- If an ioerror (such as a disk- or memory-full condition) occurred
8236 
while writing out the band list, the bookkeeping structures were left in an
8237 
inconsistent state, causing further problems.  (gxclutil.c)
8238 
	- Some shaded fills didn't check for errors when filling
8239 
sub-regions.  (gxshade1.c, gxshade4.c)
8240 
 
8241 
Cleans up some formatting.  (gxshade6.c)
8242 
 
8243 
</pre>
8244 
 
8245 
<hr>
8246 
 
8247 
<h2><a name="Version5.38"></a>Version 5.38 (beta) (9/3/98)</h2>
8248 
 
8249 
<p>
8250 
The sole purpose of this release was to fix some obscure bugs detected by
8251 
the Genoa tests and by another Aladdin project.
8252 
 
8253 
<h3><a name="5.38_Documentation"></a>Documentation</h3><pre>
8254 
 
8255 
Updates the list of implemented PostScript LanguageLevel 3 features.
8256 
(current.txt)
8257 
 
8258 
</pre><h3><a name="5.38_Drivers"></a>Drivers</h3><pre>
8259 
 
8260 
Fixes problems:
8261 
	- The PDF writer did the wrong thing for multi-source images with
8262 
more than 180 bytes of data (total) per scan line.  (gdevpdfi.c)
8263 
	- If one used setdistillerparams, [g]restore caused a rangecheck in
8264 
.setpagedevice.  ****** DISABLED FOR DCT DICTS, SINCE THIS CAUSES A SEGV
8265 
****** (gdevpsdp.c)
8266 
 
8267 
</pre><h3><a name="5.38_Interpreter"></a>Interpreter</h3><pre>
8268 
 
8269 
Fixes problems:
8270 
	- 0-length parameter arrays were given an arbitrary type, confusing
8271 
clients.  (iparam.c)
8272 
	- EOD on a write stream caused an error.  (zfileio.c)
8273 
 
8274 
</pre><h3><a name="5.38_Library"></a>Library</h3><pre>
8275 
 
8276 
Fixes problems:
8277 
	- 0-length parameter arrays confused clients that wanted arrays of a
8278 
particular type.  (gsparam.c)
8279 
	- Patterns with XStep or YStep smaller than the bounding box didn't
8280 
work properly.  (gxp1fill.c)
8281 
	- Resizing an object sometimes copied it unnecessarily.  (gsalloc.c)
8282 
	- Freeing the shared part of a graphics state didn't free its
8283 
sub-objects.  (gsstate.c)
8284 
	- The standard allocator didn't free its initial (self-containing)
8285 
chunk when asked to free itself.  (gsalloc.c)
8286 
	- The standard allocator didn't attempt to merge free blocks before
8287 
giving up.  We implemented this by adding another virtual procedure to
8288 
allocators, consolidate_free.  (gsmemory.h, gsmemraw.h, gsalloc.c,
8289 
gsmalloc.c, gsmemlok.c, gsmemory.c)
8290 
	- The free object merging algorithm thought there were free objects
8291 
even when there weren't.  (Small performance bug only.)  (gsalloc.c)
8292 
 
8293 
Adds some more tracing to pattern filling.  (gxclip2.c, gxp1fill.c)
8294 
 
8295 
Replaces the cs_alloc, cs_copy, and cs_undo_alloc macros with procedures.
8296 
(gxcspace.h, gscolor2.c, gscsepr.c, gscspace.c, gspcolor.c)
8297 
 
8298 
Moves the free-object merging code from gsnogc.c to gsalloc.c, so it can be
8299 
used even in systems that have a garbage collector.  (gsalloc.h, gxalloc.h,
8300 
gsalloc.c, gsnogc.c)
8301 
 
8302 
</pre>
8303 
 
8304 
<hr>
8305 
 
8306 
<h2><a name="Version5.37"></a>Version 5.37 (beta) (8/31/98)</h2>
8307 
 
8308 
<h3><a name="5.37_Documentation"></a>Documentation</h3><pre>
8309 
 
8310 
Mentions the new cid2code utility in the documentation.  (psfiles.txt)
8311 
 
8312 
Documents dpsnext.dev.  (gs.mak)
8313 
 
8314 
Notes that clients of ImageType 3 images are responsible for providing the
8315 
mask data before the pixel data.  (gsiparm3.h)
8316 
 
8317 
</pre><h3><a name="5.37_Procedures"></a>Procedures</h3><pre>
8318 
 
8319 
Fixes problems:
8320 
	- The makefiles were missing a dependency of jconfig.h on arch.h.
8321 
With this fix, parallel builds (make -jN) work reliably.  (jpeg.mak)
8322 
 
8323 
</pre><h3><a name="5.37_Utilities"></a>Utilities</h3><pre>
8324 
 
8325 
Adds a utility for creating maps from CIDs to Unicode.  (unixinst.mak,
8326 
cid2code.ps)
8327 
 
8328 
</pre><h3><a name="5.37_Drivers"></a>Drivers</h3><pre>
8329 
 
8330 
Removes the %Fax% IODevice code, since it was only a skeleton and Adobe no
8331 
longer supports this facility.  (devs.mak, gdevpfax.c [deleted])
8332 
 
8333 
</pre><h3><a name="5.37_Fonts"></a>Fonts</h3><pre>
8334 
 
8335 
Fixes problems:
8336 
	- TrueType fonts whose first code wasn't 0 or 0xf000 didn't display
8337 
correctly.  (bug introduced in 5.36) (gs_ttf.ps)
8338 
	- CIDFontType 0 fonts didn't handle being redefined with another
8339 
name.  (gs_cidfn.ps)
8340 
	- CIDFontType 0 fonts could get local-into-global-store errors.
8341 
(gs_cidfn.ps)
8342 
	- PDF files couldn't use already-defined CMap resources.
8343 
(pdf_font.ps)
8344 
	- Out-of-range CIDs gave an error rather than using a notdef
8345 
character.  (gs_cidfn.ps)
8346 
 
8347 
</pre><h3><a name="5.37_Interpreter"></a>Interpreter</h3><pre>
8348 
 
8349 
Fixes problems:
8350 
	- CIDFontType 4 fonts weren't recognized as CID-keyed.  (zchar2.c,
8351 
zchar32.c, zfont32.c)
8352 
	- When recovering from an error in an operator procedure, the
8353 
interpreter didn't update the dictionary stack caches.  (interp.c)
8354 
	- startjob didn't reinitialize the stacks or VM space.  (gs_lev2.ps)
8355 
	- Encoding filters with a Predictor always caused an error.
8356 
(zfilter2.c)
8357 
	- currenttrapparams gave an error.  (gs_ll3.ps)
8358 
	- settrapparams had no effect, and left the dictionary on the stack.
8359 
(gs_ll3.ps)
8360 
 
8361 
Finishes implementing Type 32 fonts.  These fonts don't actually work
8362 
directly with the cache -- they store the bitmaps in a compressed form in an
8363 
ordinary Dictionary -- but they do behave the way they are specified.
8364 
(gs_typ32.ps, zchar32.c, zfont32.c)
8365 
 
8366 
Cleans up formatting and macros in a few more files.  (ccfont.h, icharout.h,
8367 
icstate.h, iutil.h, iutil2.h, ibnum.c, iccfont.c, iccinit0.c, ilocate.c,
8368 
isave.h, isave.c, iscannum.c, iutil.c, iutil2.c)
8369 
 
8370 
Removes or capitalizes a few more macros.  (zcontext.c, zcssepr.c,
8371 
zusparam.c)
8372 
 
8373 
</pre><h3><a name="5.37_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
8374 
 
8375 
Fixes problems:
8376 
	- Color spaces with subsidiary spaces (Indexed, Separation, DeviceN)
8377 
sometimes didn't work properly, because they were translated to PostScript
8378 
structures more than once.  (pdf_draw.ps)
8379 
	- Type 3 fonts didn't rebind the resource context when executing the
8380 
CharProc procedure.  (pdf_font.ps)
8381 
 
8382 
</pre><h3><a name="5.37_Streams"></a>Streams</h3><pre>
8383 
 
8384 
Fixes problems:
8385 
	- The CCITTFax decoder signaled an error if it saw an EOB with
8386 
EndOfBlock = false.  (According to e-mail from Adobe, EOBs should be
8387 
recognized even if EndOfBlock is false, even though the Red Book implies the
8388 
opposite.)  (scfd.c)
8389 
 
8390 
Cleans up macros and formatting in a few more files.  (slzwce.c, sfxfd.c,
8391 
sfxstdio.c)
8392 
 
8393 
</pre><h3><a name="5.37_Library"></a>Library</h3><pre>
8394 
 
8395 
Fixes problems:
8396 
	- Landscape color images usually didn't display.  (bug introduced in
8397 
5.32)  (gxicolor.c)
8398 
	- If gs_heap_free_object was called with ptr != 0 but bp = 0 (which
8399 
is an error), an invalid memory access would occur.  (gsmalloc.c)
8400 
	- The left side bearing was still being added in a second time for
8401 
the accent of a seac.  (bug probably introduced in 5.20)  (gxtype1.c)
8402 
	- An access error occurred when rendering the very last glyph of a
8403 
TrueType font with a 2-byte loca table.  (gstype42.c)
8404 
	- In the fast portrait case of monochrome images, a numerical error
8405 
sometimes produced a 1-bit-wide vertical stripe of an incorrect color at the
8406 
right edge of the image.  (gxifast.c)
8407 
	- ImageType 3 images with InterleaveType = 3 gave memory access
8408 
errors.  (gximage3.c)
8409 
	- Hit detection ignored any part of the aperture that had negative X
8410 
or Y coordinates.  (gdevhit.c)
8411 
	- The special color mapping device didn't copy all necessary values
8412 
back from its target.  (gxdevice.h, gdevbbox.c, gdevcmap.c, gsdevice.c)
8413 
	- The special color mapping device didn't handle ordinary (Type 1)
8414 
images correctly.  (gdevcmap.c)
8415 
	- CMYK halftones complemented both the color and the halftone level:
8416 
this produced the right number of pixels turned on (only for linear spot
8417 
functions or threshold arrays), but wasn't consistent with either the Adobe
8418 
specification or the user's intentions.  (gxcht.c)
8419 
	- The phase of mask Patterns wasn't always set correctly.
8420 
(gxp1fill.c)
8421 
	- The reader side of overlapped band devices was confused about its
8422 
open/closed status.  (gdevprna.c)
8423 
 
8424 
Renames Type 32 fonts from ft_bitmap to ft_CID_bitmap.  (gxftype.h)
8425 
 
8426 
Adds some more tracing for composite font decoding.  (gsfcmap.c)
8427 
 
8428 
Adds some more tracing for images.  (gxiinit.c)
8429 
 
8430 
Cleans up formatting and macros in a few more files.  (gxifast.c)
8431 
 
8432 
Moves the image*_type_data and image*_enum_procs_data definitions from
8433 
header files into more appropriate .c files.  (gsiparm2.h, gsiparm3.h,
8434 
gsiparm4.h, gxiparam.h, gxiinit.c, gximage2.c, gximage3.c, gximage4.c)
8435 
 
8436 
</pre>
8437 
 
8438 
<hr>
8439 
 
8440 
<h2><a name="Version5.36"></a>Version 5.36 (beta) (8/25/98)</h2>
8441 
 
8442 
<p>
8443 
Another set of fixes.  The free-standing bbox device now produces convenient
8444 
%%BoundingBox messages.  This fileset also includes support for double-byte
8445 
TrueType fonts.
8446 
 
8447 
<h3><a name="5.36_Documentation"></a>Documentation</h3><pre>
8448 
 
8449 
Fixes problems:
8450 
	- There was a minor spacing glitch in one man page.  (gs.1)
8451 
	- The page printed by align.ps didn't make it clear enough what to
8452 
do with the numbers it asks users to calculate.  (align.ps)
8453 
	- The sample code for adding gamma adjustment didn't work most of
8454 
the time.  (devices.txt)
8455 
	- The prolog produced by pswrite was completely uncommented.
8456 
(gdevps.c)
8457 
	- The documentation didn't note that the string block freelist
8458 
(sfree) is sorted in address order.  (gxalloc.h)
8459 
 
8460 
Notes that FirstBitLowOrder and LowBitFirst are equivalent.  (slzwx.h)
8461 
 
8462 
Notes a change in the FTP site of the free Kanji ("Wadalab") fonts.
8463 
(fonts.txt)
8464 
 
8465 
Adds a pointer to the freely available Unicode CMaps.  (fonts.txt)
8466 
 
8467 
Changes an obsolete e-mail address for Carsten Emde.  (contrib.mak)
8468 
 
8469 
</pre><h3><a name="5.36_Utilities"></a>Utilities</h3><pre>
8470 
 
8471 
Fixes problems:
8472 
	- The viewgif utility sometimes left 1-scan-line gaps when rendering
8473 
interlaced images.  (viewgif.ps)
8474 
 
8475 
</pre><h3><a name="5.36_Drivers"></a>Drivers</h3><pre>
8476 
 
8477 
Fixes problems:
8478 
	- In the PDF writer, downsampled images were always written with 8
8479 
bits per sample, not the requested depth.  (gdevpsdi.c)
8480 
	- The 8-to-N-bit compression filter produced an extra byte at the
8481 
end of each row, and the N-to-8-bit expansion filter skipped an input byte
8482 
at the end of each row.  (gdevpsds.c)
8483 
	- In the PDF writer, the size of downsampled images for changing the
8484 
pixel width was set incorrectly, leading to inconsistent image parameters in
8485 
the output.  (gdevpsdi.c)
8486 
	- The subsampling filters didn't take a clear position about what to
8487 
do with excess input samples beyond a multiple of the reduction factor,
8488 
leading to inconsistent image parameters.  We added a Boolean to indicate
8489 
whether they should discard the samples or use them to create an additional
8490 
output sample.  (gdevpsds.h, gdevpsdi.c, gdevpsds.c)
8491 
	- The subsampling filters didn't provide the necessary set_defaults
8492 
procedures.  (gdevpsds.h, gdevpsds.c)
8493 
	- Because of a typo, pdfwrite and pswrite printed sequences of 4
8494 
decimal values wrong. (bug introduced during macro removal in 5.25)
8495 
(gdevpstr.c)
8496 
 
8497 
Makes the PS writer produce a %%HiResBoundingBox as well as a %%BoundingBox.
8498 
(gdevps.c)
8499 
 
8500 
</pre><h3><a name="5.36_Platforms"></a>Platforms</h3><pre>
8501 
 
8502 
Fixes problems:
8503 
	- The Borland makefile didn't include the MT libraries.  We added a
8504 
MULTITHREAD option to this makefile.  (bcwin32.mak)
8505 
	- The MSVC makefile didn't include the MT switches in the right
8506 
place.  (msvccmd.mak)
8507 
	- 'make clean' in the Windows makefiles didn't clean up quite
8508 
enough.  (bcwin32.mak, msvc32.mak, msvccmd.mak)
8509 
	- The OS/2 makefile had gotten slightly out of date.  (os2.mak)
8510 
 
8511 
Cleans up some formatting.  (gp_win32.c)
8512 
 
8513 
</pre><h3><a name="5.36_Fonts"></a>Fonts</h3><pre>
8514 
 
8515 
Fixes problems:
8516 
	- Loading large TrueType fonts caused excessive garbage collection.
8517 
(gs_ttf.ps)
8518 
 
8519 
Finishes implementing support for turning double-byte TrueType fonts into
8520 
CIDFontType 2 fonts.  (gs_ttf.ps)
8521 
 
8522 
</pre><h3><a name="5.36_Interpreter"></a>Interpreter</h3><pre>
8523 
 
8524 
Fixes problems:
8525 
	- We thought the dictionary returned by currentuserparams should
8526 
always be allocated in local VM, but in fact the correct definition is that
8527 
it should be allocated in the current VM.  The simplest way to make this
8528 
work is for setuserparams to copy any string values into global VM.
8529 
(gs_lev2.ps)
8530 
	- 1-input stitching functions didn't allow k = 0.  (ifunc.h,
8531 
zfunc.c)
8532 
	- OtherSubrs defined in PostScript no longer worked.  (bug probably
8533 
introduced when we rewrote the Type 1 code in C) (zchar1.c)
8534 
 
8535 
Cleans up a few compiler warnings (missing empty 'default' cases, unused
8536 
variables).  (igc.c, iname.c)
8537 
 
8538 
Replaces some uses of RELOC_*_PTR (now deprecated) with RELOC_*_VAR.
8539 
(isave.c, iscan.c)
8540 
 
8541 
</pre><h3><a name="5.36_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
8542 
 
8543 
Fixes problems:
8544 
	- Resources were re-created on each page, causing (sometimes a lot
8545 
of) unnecessary computation.  We implemented most of the machinery for
8546 
avoiding this, but not the mechanism for actually storing resources in
8547 
global VM.  (pdf_base.ps, pdf_main.ps)
8548 
 
8549 
Adds a little more debugging code.  (pdf_draw.ps)
8550 
 
8551 
</pre><h3><a name="5.36_Streams"></a>Streams</h3><pre>
8552 
 
8553 
Cleans up formatting in a few more files.  (sbtx.h, sfilter.h, slzwx.h,
8554 
spngpx.h, srlx.h, sstring.h, seexec.c, sfilter1.c, sfilter2.c, smtf.c,
8555 
spcxd.c, srld.c, srle.c)
8556 
 
8557 
Replaces a couple of #defines with duplicated (small) structures.  (sbtx.h,
8558 
sfilter.h, sfilter1.c, sfilter2.c)
8559 
 
8560 
Replaces all uses of RELOC_*_PTR (now deprecated) with RELOC_*_VAR.
8561 
(stream.c)
8562 
 
8563 
</pre><h3><a name="5.36_Library"></a>Library</h3><pre>
8564 
 
8565 
Fixes problems:
8566 
	- If a garbage collection occurred during a string show operation,
8567 
memory could be corrupted. (bug introduced in 5.24) (gstext.h, gstext.c)
8568 
	- A debugging check incorrectly indicated an error when
8569 
miter-checking lines with a 0 degree angle between them.  (gxstroke.c)
8570 
	- A structure created for bitmap/pixmap patterns was never freed.
8571 
(gspcolor.c)
8572 
	- Colored halftones didn't work with 24-bit devices.  (This case was
8573 
never actually used.)  (gxcht.c)
8574 
	- CIE colors didn't remap properly if the current color space was a
8575 
Pattern space.  (gscie.c)
8576 
	- In a non-garbage-collected environment, freeing a string in the
8577 
current chunk made an unnecessary test.  (Minor performance impact only.)
8578 
(gsnogc.c)
8579 
 
8580 
Cleans up a few compiler warnings (missing empty 'default' cases, unused
8581 
variables).  (gsht.c, gsht1.c, gshtscr.c, gsimage.c, gxacpath.c, gxclread.c,
8582 
gxicolor.c, gxshade4.c)
8583 
 
8584 
Replaces some uses of RELOC_*_PTR with RELOC_*_VAR.  (gsht1.c)
8585 
 
8586 
Changes the printed output of the free-standing bbox device so it produces
8587 
%%BoundingBox and %%HiResBoundingBox lines that can be dropped directly into
8588 
a DSC header.  (gdevbbox.c)
8589 
 
8590 
Speeds up the 4-bit case of copy_mono by about 30%.  (gdevm4.c)
8591 
 
8592 
Expands some macros and cleans up formatting, for easier reading and
8593 
debugging.  Speeds up the color halftone generation algorithm substantially
8594 
(up to 40%), by skipping the halftone computation for planes that are known
8595 
to be solid-color, and using copy_mono directly if only one plane is not
8596 
solid-color.  (gxcht.c)
8597 
 
8598 
</pre>
8599 
 
8600 
<hr>
8601 
 
8602 
<h2><a name="Version5.35"></a>Version 5.35 (beta) (8/18/98)</h2>
8603 
 
8604 
<p>
8605 
More updates for 5.3x, specifically fixing problems with halftones on banded
8606 
CMYK devices.
8607 
 
8608 
<h3><a name="5.35_Documentation"></a>Documentation</h3><pre>
8609 
 
8610 
Fixes problems:
8611 
	- The URLs for the third-party libraries were out of date.
8612 
(make.txt, jpeg.mak, libpng.mak, zlib.mak)
8613 
 
8614 
</pre><h3><a name="5.35_Drivers"></a>Drivers</h3><pre>
8615 
 
8616 
Adds an x11gray4 device for help in debugging.  (devs.mak, gdevxalt.c)
8617 
 
8618 
</pre><h3><a name="5.35_Fonts"></a>Fonts</h3><pre>
8619 
 
8620 
Fixes problems:
8621 
	- TrueType fonts with more than 64K of data before or after the
8622 
glyfs caused an error.  (gs_ttf.ps)
8623 
 
8624 
</pre><h3><a name="5.35_Interpreter"></a>Interpreter</h3><pre>
8625 
 
8626 
Fixes problems:
8627 
	- The dictionary returned by currentuserparams was allocated in the
8628 
current VM rather than always in local VM.  (gs_lev2.ps)
8629 
 
8630 
</pre><h3><a name="5.35_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
8631 
 
8632 
Fixes problems:
8633 
	- CID-keyed fonts caused an error, because their CDevProc was
8634 
incorrect.  (pdf_font.ps)
8635 
 
8636 
</pre><h3><a name="5.35_Library"></a>Library</h3><pre>
8637 
 
8638 
Fixes problems:
8639 
	- A comment was duplicated.  (gxht.h)
8640 
	- The main procedure of the command list reader was so large that it
8641 
couldn't be optimized by many compilers, and was very hard to read.
8642 
(gxclrast.c)
8643 
	- Banding devices using multi-screen halftones could get memory
8644 
access errors because they didn't clear the halftone caches when changing
8645 
halftone parameters.  (gxclrast.c)
8646 
	- Banding devices using multi-screen halftones didn't set the
8647 
halftone phase correctly.  (gxcht.c, gxclrast.c)
8648 
	- RasterOp didn't work for 2- or 4-bit gray-scale devices.  It still
8649 
doesn't work right, but it's closer.  (gdevm2.c, gdevm4.c, gdevmrop.c)
8650 
	- Undefined characters in CMap-based composite fonts caused errors
8651 
and possible invalid memory accesses.  (gschar0.c)
8652 
 
8653 
</pre>
8654 
 
8655 
<hr>
8656 
 
8657 
<h2><a name="Version5.34"></a>Version 5.34 (beta) (8/16/98)</h2>
8658 
 
8659 
<p>
8660 
More updates for 5.3x.
8661 
 
8662 
<h3><a name="V5.34_Documentation"></a>Documentation</h3><pre>
8663 
 
8664 
Updates all of the man pages to new versions.  (gs-vms.hlp, gs.1, pdf2dsc.1,
8665 
pdf2ps.1, ps2ascii.1, ps2epsi.1, ps2pdf.1, ps2ps.1)
8666 
 
8667 
</pre><h3><a name="V5.34_Procedures"></a>Procedures</h3><pre>
8668 
 
8669 
Fixes problems:
8670 
	- The MSVC library makefile incorrectly included gp_msio.c.
8671 
(msvclib.mak, winlib.mak)
8672 
 
8673 
</pre><h3><a name="V5.34_Drivers"></a>Drivers</h3><pre>
8674 
 
8675 
Fixes problems:
8676 
	- The PDF writer unnecessarily checked for other parameters after a
8677 
failing show or pdfmark.  (gdevpdfp.c)
8678 
	- The device's BufferSpace parameter was ignored.  (bug introduced
8679 
by async rendering code in 5.30) (gdevprn.c)
8680 
	- Banding devices smashed the first 4 bytes of each scan line.  (bug
8681 
introduced in 5.28) (gxdevmem.h, gdevmem.c, gxclread.c)
8682 
	- The phase for colored halftones was set wrong.  (We have "fixed"
8683 
this innumerable times, and it is still probably wrong.)  (gxclrast.c)
8684 
 
8685 
Replaces the deprecated gx_device_image_xxx calls with the new gx_image_xxx
8686 
calls.  (gdevpdfi.c, gdevps.c, gdevpx.c, gdevvec.c)
8687 
 
8688 
</pre><h3><a name="V5.34_Interpreter"></a>Interpreter</h3><pre>
8689 
 
8690 
Fixes problems:
8691 
	- The equality test for idiom recognition sometimes incorrectly
8692 
returned false.  (zmisc3.c)
8693 
	- shfill didn't take the BBox into account.  (It still doesn't.)
8694 
(gxshade.c)
8695 
	- The status operator could return an incorrect pages or bytes value
8696 
for files larger than 2 Gb, rather than giving an error.  (zfile.c)
8697 
 
8698 
</pre><h3><a name="V5.34_Library"></a>Library</h3><pre>
8699 
 
8700 
Fixes problems:
8701 
	- The hint tables weren't reset after processing the base character
8702 
of a 'seac', leading to incorrect hinting and (for Type 2 CharStrings)
8703 
possible mis-parsing of the outline data.  (gstype2.c)
8704 
	- When processing a 'seac', the left side bearing was added in
8705 
twice, displacing characters to the right.  (bug probably introduced in
8706 
5.20) (gstype1.c)
8707 
	- RasterOps didn't set the size of the RasterOp texture device,
8708 
which caused filling operations involving a colored halftone to be clipped
8709 
to an empty rectangle.  (gdevrops.c)
8710 
	- When filling with a colored halftone, the RasterOp source was
8711 
often disregarded.  (gxcht.c)
8712 
	- gx_device_image[_plane]_data and gx_device_end_image took an
8713 
unused dev argument, leading to potential confusion.  We deprecated the
8714 
gx_device_image_plane_data and gx_device_end_image procedures, replacing
8715 
them with macros that call their replacements gx_image_plane_data and
8716 
gx_image_end (which no longer have the spurious dev argument).  (gxdevcli.h,
8717 
gxdevice.h, gxiparam.h, gdevbbox.c, gdevddrw.c, gdevdflt.c, gsimage.c,
8718 
gslib.c, gxclimag.c, gxclrast.c, gximage2.c, gximage3.c, gximage4.c)
8719 
	- gs_color_adjust_count, introduced in 5.33 to address the problem
8720 
of freeing free-standing patterns, just made things worse.  We are replacing
8721 
them with gs_pattern_reference, essentially the procedure introduced in 5.31
8722 
that we deleted in 5.33.  (gsccolor.h, gspcolor.h, gscolor.c, gspcolor.c)
8723 
 
8724 
Changes hint suppression from a #define to a debugger-settable static.
8725 
(gxhint1.c)
8726 
 
8727 
</pre>
8728 
 
8729 
<hr>
8730 
 
8731 
<h2><a name="Version5.33"></a>Version 5.33 (beta) (8/14/98)</h2>
8732 
 
8733 
<p>
8734 
This is the third set of updates for 5.30.  These updates have been driven
8735 
mostly by the needs of another Aladdin project, so they haven't included as
8736 
many problem fixes as we would normally make.
8737 
 
8738 
<h3><a name="V5.33_Platforms"></a>Platforms</h3><pre>
8739 
 
8740 
Fixes problems:
8741 
	- The thread creation procedure for Win32 called a Windows function
8742 
rather than the proper C library function.  (gp_win32.c)
8743 
	- In some MS-DOS implementations, the copy command doesn't recognize
8744 
the /Y switch.  (bcwin32.mak)
8745 
 
8746 
</pre><h3><a name="V5.33_Fonts"></a>Fonts</h3><pre>
8747 
 
8748 
Fixes problems:
8749 
	- TrueType fonts with *less* than 64K of glyf data stopped working.
8750 
(bug introduced in 5.31) (gs_ttf.ps)
8751 
 
8752 
</pre><h3><a name="V5.33_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
8753 
 
8754 
Fixes problems:
8755 
	- Using an Identity function left an extra element on the stack.
8756 
(pdf_draw.ps)
8757 
	- The syntax of # in names is different in PDF 1.1 and PDF 1.2, but
8758 
the PDF 1.2 syntax was always used.  (pdf_base.ps, pdf_main.ps)
8759 
 
8760 
</pre><h3><a name="V5.33_Library"></a>Library</h3><pre>
8761 
 
8762 
Fixes problems:
8763 
	- Color images still always caused an error. (bug introduced in
8764 
5.32) (gxicolor.c)
8765 
	- Because of a typo, the implementation of image types didn't
8766 
compile. (bug introduced in 5.32)  (gxiparam.h)
8767 
	- Free-standing colors (specifically pattern colors) and color
8768 
spaces couldn't be freed.  This required a NON-BACKWARD-COMPATIBLE change in
8769 
an internal API used for managing color and color space reference counts.
8770 
(gxcspace.h, gsccolor.h, gscdevn.c, gscolor.c, gscolor2.c, gscscie.c,
8771 
gscsepr.c, gscspace.c, gspcolor.c)
8772 
 
8773 
Cleans up a little more formatting.  (gscspace.h)
8774 
 
8775 
</pre>
8776 
 
8777 
<hr>
8778 
 
8779 
<h2><a name="Version5.32"></a>Version 5.32 (beta) (8/13/98)</h2>
8780 
 
8781 
<p>
8782 
This is the second set of updates for 5.30.
8783 
 
8784 
<h3><a name="V5.32_Procedures"></a>Procedures</h3><pre>
8785 
 
8786 
Fixes problems:
8787 
	- The OS/2 makefile accidentally omitted the OS/2-PM driver.
8788 
(os2.mak)
8789 
	- The MSVC library makefile didn't work.  (msvclib.mak)
8790 
	- Debugging was turned on in the Borland Windows makefile.
8791 
(bcwin32.mak)
8792 
	- The BEGINFILES2 list was too long in the MSVC makefile.
8793 
(msvc32.mak)
8794 
 
8795 
</pre><h3><a name="V5.32_Interpreter"></a>Interpreter</h3><pre>
8796 
 
8797 
Fixes problems:
8798 
	- .execn wouldn't accept pseudo-operators.  (iref.h)
8799 
	- inustroke with a matrix operand didn't work correctly.  (zupath.c)
8800 
	- ImageType 4 images didn't work.  (bug introduced in 5.31)
8801 
(zimage3.c)
8802 
 
8803 
</pre><h3><a name="V5.32_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
8804 
 
8805 
Fixes problems:
8806 
	- Forms used more than once caused an invalidaccess error.
8807 
(pdf_draw.ps)
8808 
 
8809 
</pre><h3><a name="V5.32_Library"></a>Library</h3><pre>
8810 
 
8811 
Fixes problems:
8812 
	- Using a colored pattern with a Pattern color space that included a
8813 
base space could access uninitialized floating point values, possibly
8814 
causing an arithmetic trap.  (gspcolor.c)
8815 
	- RasterOp wasn't implemented for 16- and 32- bit devices.
8816 
(gdevm16.c, gdevm32.c, gdevmrop.c)
8817 
	- The library test program relied on copysign, which some C
8818 
libraries lack.  (gslib.c)
8819 
	- The gs_free and gs_heap_free_all debugging printout were included
8820 
even if DEBUG wasn't defined. (bug introduced in 5.30) (gsmalloc.c)
8821 
	- Color images always caused an error. (bug introduced in 5.30)
8822 
(gxicolor.c)
8823 
	- Masked images with pis = NULL could cause an error.  (gximono.c)
8824 
	- In landscape orientation, masked images didn't guarantee that the
8825 
buffer of mask scan lines would be flushed to the mask clipping device
8826 
before processing the data being masked.  (gxiparam.h, gxidata.c, gxifast.c,
8827 
gximage3.c)
8828 
	- Images with source transparency set but CombineWithColor = false
8829 
could get an error because of trying to paint with an unloaded
8830 
color. (caused by a bug fix in 5.30) (gxdcolor.c, gxiinit.c)
8831 
 
8832 
</pre>
8833 
 
8834 
<hr>
8835 
 
8836 
<h2><a name="Version5.31"></a>Version 5.31 (limited) (8/11/98)</h2>
8837 
 
8838 
<p>
8839 
This is the first set of updates for 5.30.  They fix a few minor build
8840 
problems, and some significant problems with bitmap patterns that do not
8841 
affect the PostScript or PDF interpreters.
8842 
 
8843 
<h3><a name="V5.31_Drivers"></a>Drivers</h3><pre>
8844 
 
8845 
Moves some casting macros from generic files to the few specific files that
8846 
use them.  (gdev4693.c, gdevn533.c, gdevsnfb.c)
8847 
 
8848 
</pre><h3><a name="V5.31_Interpreter"></a>Interpreter</h3><pre>
8849 
 
8850 
Changes ImageType 4 images to match the change in the library interface.
8851 
(zimage3.c)
8852 
 
8853 
</pre><h3><a name="V5.31_Library"></a>Library</h3><pre>
8854 
 
8855 
Fixes bugs:
8856 
	- The MaskColor elements of ImageType 4 images were defined as int
8857 
rather than uint, truncating the range by 1 bit and causing problems in
8858 
comparing the mask color against the pixel samples.  (gsiparm4.h,
8859 
gximage4.c)
8860 
	- A needed cast was missing from gs_malloc_memory_release.
8861 
(gsmalloc.h)
8862 
	- A needed cast from byte to char was missing.  (gsparams.c)
8863 
	- Patterns always allocated a mask for rendering, which for large
8864 
patterns specified directly as bitmaps allocated a lot of unnecessary
8865 
memory.  (gxcolor2.h, gspcolor.c, gxp1fill.c, gxpcmap.c)
8866 
	- Macros simply defining casted versions of variables made the code
8867 
hard to debug.  We have only removed the ones that are in generic code (not
8868 
drivers) and that cast pointers to gx_device or its subclasses: the only
8869 
ones removed from header files were prn_dev in gdevprn.h, mdev in gdevmem.h,
8870 
and ccdev, crdev, and cwdev in gxcldev.h.  gdevmem.h, (gdevprn.h, gxclist.h,
8871 
gdevabuf.c, gdevm1.c, gdevm2.c, gdevm4.c, gdevm8.c, gdevm16.c, gdevm24.c,
8872 
gdevm32.c, gdevmpla.c, gdevnfwd.c, gdevprn.c, gxacpath.c, gxclimag.c,
8873 
gxclist.c, gxclpage.c, gxclpath.c, gxclread.c, gxclrect.c)
8874 
	- There was no way to free a pattern instance outside the graphics
8875 
state.  (gspcolor.h, gspcolor.c)
8876 
 
8877 
</pre>
8878 
 
8879 
<hr>
8880 
 
8881 
<h2><a name="Version5.30"></a>Version 5.30 (limited) (8/10/98)</h2>
8882 
 
8883 
<p>
8884 
This is the first beta candidate for the 5.50 release.  It completes the
8885 
merge of the overlapped rasterizing code into the main development line.
8886 
 
8887 
<h3><a name="V5.30_Documentation"></a>Documentation</h3><pre>
8888 
 
8889 
Fixes bugs:
8890 
	- Yves Arrouye's e-mail address was out of date.  (gdevbjc.h,
8891 
gdevcdj.c, contrib.mak, devices.txt, unix-lpr.txt)
8892 
 
8893 
Makes the warning against using SHARE_JPEG=1 even stronger.  (make.txt,
8894 
dvx-gcc.mak, ugcclib.mak. unix*.mak)
8895 
 
8896 
Removes information about using DCL files on VMS to build Ghostscript.
8897 
(make.txt)
8898 
 
8899 
Updates the documentation for begin_typed_image.  (drivers.txt)
8900 
 
8901 
</pre><h3><a name="V5.30_Procedures"></a>Procedures</h3><pre>
8902 
 
8903 
Fixes bugs:
8904 
	- The Unix build procedure didn't create the obj subdirectory
8905 
automatically.  (unixhead.mak, unix-end.mak)
8906 
	- gsdll_h wasn't defined for the OS/2 PM device.  Fixing this
8907 
properly required moving the OS/2 drivers into the same makefile as the MS
8908 
Windows drivers, and renaming the file.  (devs.mak, msdevs.mak =&gt; pcwin.mak,
8909 
winlib.mak)
8910 
	- gsiparm4_h was used before it was defined.  (lib.mak)
8911 
	- Building with shared libaries still used header files in
8912 
Ghostscript's directories, not the ones in /usr/include.  ****** NOT DONE
8913 
YET ******
8914 
	- The makefiles all assumed they were located in the current
8915 
directory, not in the source directory.  (*.mak)
8916 
 
8917 
Adds new 'debugclean' and 'pgclean' targets, parallel to 'debug' and 'pg',
8918 
for the Unix platforms.  (unix-end.mak)
8919 
 
8920 
Changes the management of .dev files so that on Unix platforms, one can
8921 
really maintain standard, debugging, and profiling builds simultaneously.
8922 
This is a hack, but a fairly reliable one.  (gs.mak, unixhead.mak,
8923 
unix-end.mak)
8924 
 
8925 
Adds a dummy thread / semaphore / monitor implementation to all platforms
8926 
other than Windows.  (dvx-tail.mak, openvms.mak, os2.mak, ugcclib.mak,
8927 
unixtail.mak, watc.mak, watclib.mak)
8928 
 
8929 
</pre><h3><a name="V5.30_Drivers"></a>Drivers</h3><pre>
8930 
 
8931 
Updates driver support to use the new write-position stream.  (gdevpsdf.c)
8932 
 
8933 
</pre><h3><a name="V5.30_Platforms"></a>Platforms</h3><pre>
8934 
 
8935 
Fixes bugs:
8936 
	- The Windows Registry calls didn't deal properly with a null
8937 
pointer.  (gp_wgetv.c)
8938 
 
8939 
Makes a small change in the platform semaphore / monitor API.  (gpsync.h,
8940 
gxsync.h, gp_win32.c, gxsync.c)
8941 
 
8942 
Adds a dummy thread / semaphore / monitor implementation.  Note that with
8943 
this implementation, async rendering WILL NOT WORK.  (gp_nsync.c)
8944 
 
8945 
Adds pthreads thread creation and POSIX semaphores for Unix platforms.  (We
8946 
still need to add System V semaphores, which is all that is available on
8947 
Solaris and BSDI.)  (gp_semon.c, gp_posem.c, gp_pthr.c).
8948 
 
8949 
</pre><h3><a name="V5.30_Fonts"></a>Fonts</h3><pre>
8950 
 
8951 
Fixes bugs:
8952 
	- CIDFontType 0 fonts didn't select the proper VM space for adding
8953 
entries to font dictionaries, and for loading Subrs strings.  (gs_cidfn.ps)
8954 
	- TrueType fonts with an odd glyfs length didn't work.  (gs_ttf.ps)
8955 
	- TrueType fonts with a Format 3 'post' table didn't work.
8956 
(gs_ttf.ps)
8957 
	- TrueType fonts where the encoding in the 'post' table didn't cover
8958 
the entire set of glyfs didn't work.  (gs_ttf.ps)
8959 
	- TrueType fonts with more than 128K of glyfs didn't work.
8960 
(gs_ttf.ps)
8961 
	- TrueType cmap format 6 didn't work.  (gs_ttf.ps)
8962 
	- CIDFontType 0 fonts with hex data didn't skip over the &gt; at the
8963 
end of the data.  (gs_cidfn.ps)
8964 
 
8965 
</pre><h3><a name="V5.30_Interpreter"></a>Interpreter</h3><pre>
8966 
 
8967 
Works around the fact that gs_shfill can't do a gs_setcolorspace for color
8968 
spaces that require interpreter assistance.  (gs_ll3.ps)
8969 
 
8970 
Moves clipsave and cliprestore to C code.  (gs_ll3.ps, zmisc3.c)
8971 
 
8972 
Updates some files to reflect the redivision of gsmemory.h and gsstruct.h.
8973 
(imemory.h, istruct.h, ialloc.c)
8974 
 
8975 
</pre><h3><a name="V5.30_Streams"></a>Streams</h3><pre>
8976 
 
8977 
Adds a stream that just keeps track of the write position.  (stream.h,
8978 
stream.c)
8979 
 
8980 
Removes the compilation dependency that required all clients of the zlib
8981 
filters to be compiled with the zlib source directory in the search path.
8982 
(szlibx.h, szlibxx.h, szlib[cde].c)
8983 
 
8984 
</pre><h3><a name="V5.30_Library"></a>Library</h3><pre>
8985 
 
8986 
Fixes bugs:
8987 
	- ImageType 4 images with &gt;1 input component didn't work.
8988 
(gximage4.c)
8989 
	- Sampled functions didn't keep the fractional part when
8990 
interpolating, possibly leading to infinite recursion in shading.
8991 
(gsfunc0.c)
8992 
	- The color error value for shadings was computed incorrectly for
8993 
CIE color spaces.  (gxshade.c)
8994 
	- The CharstringType 2 'roll' operator rolled the operands in the
8995 
wrong direction.  (gstype2.c)
8996 
	- Images with RasterOp or transparency didn't retain the current
8997 
color properly, leading to unpredictable results.  (gdevmrop.h, gsropt.h,
8998 
gdevddrw.c, gdevrops.c, gxdcolor.c, gxiinit.c, gximage3.c)
8999 
	- A cast to void * was needed to remove a const modifier.
9000 
(gscrdp.c)
9001 
	- On 8-bit non-gray-scale devices, RasterOp values of all-0s or
9002 
all-1s produced the wrong output.  (gdevmrop.c)
9003 
	- The GC procedure for halftone screen enumerators was wrong,
9004 
possibly causing invalid memory access errors.  This bug predates 5.10.
9005 
(gshtscr.c)
9006 
	- An extra pair of string quotes confused some compilers.
9007 
(gsshade.c)
9008 
	- There were several errors in the CharstringType 2 'flex'
9009 
operators.  (gstype2.c)
9010 
	- The structure descriptors for devices weren't initialized in
9011 
library-only configurations.  (int.mak, gconf.c)
9012 
	- The Pattern cache got confused if the current device when a
9013 
Pattern color was used wasn't the same as the current device when the
9014 
Pattern instance was created.  (gxpcmap.c)
9015 
	- The target of forwarding devices wasn't reference-counted
9016 
properly.  (gsdevice.c) ****** FIXING THIS PROPERLY WILL BE A LOT OF WORK:
9017 
WE ONLY FIXED gs_setdevice_no_erase ******
9018 
	- As a result of fixing a typo, the structure declaration for
9019 
gx_page_queue was private, causing clients not to compile.  We left it
9020 
private and added an instance allocation procedure.  (gxpageq.h, gdevprna.c,
9021 
gxpageq.c)
9022 
	- The mask for ImageType 3 images was clipped (incorrectly).
9023 
(gximage3.c)
9024 
	- Interpolated images with negative X-&gt;X values in the CTM were
9025 
displaced on the page.  (gxiscale.c)
9026 
 
9027 
Finishes integrating the asynchronous rendering code.  (gpsync.h, gxclist.h,
9028 
gdevprna.c, gsmemlok.c, gxclimag.c, gxclpath.c, gxclutil.c)
9029 
 
9030 
Updates the memory manager API for additional flexibility needed for
9031 
asynchronous rendering.  (gsmalloc.h, gsmemlok.h, gsmemraw.h, gsalloc.c,
9032 
gsmalloc.c, gsmemlok.c)
9033 
 
9034 
Updates the standard memory manager to work with a fixed (externally
9035 
supplied) set of chunks, needed for asynchronous rendering, removing some
9036 
macros in the process.  (gsalloc.h, gsalloc.c)
9037 
 
9038 
Updates some code to use more mnemonic variable names.  (gstype2.c,
9039 
gxicolor.c)
9040 
 
9041 
Removes some macros for better readability.  (gdevmrop.c)
9042 
 
9043 
Adds dummy implementations of clipsave and cliprestore.  (gsclipsr.h,
9044 
gsclipsr.c)
9045 
 
9046 
Implements an alternative, but completely untested, parameter list
9047 
serializer based on streams.  (gsparam2.c)
9048 
 
9049 
Moves more of the internal memory manager structures from gsmemory.h to
9050 
gsstruct.h.  (gsmemory.h, gsstruct.h, gsmemory.c)
9051 
 
9052 
</pre>
9053 
 
9054 
<hr>
9055 
 
9056 
<h2><a name="Version5.28"></a>Version 5.28 (limited) (8/3/98)</h2>
9057 
 
9058 
<p>
9059 
This fileset almost finishes merging in the code for overlapped
9060 
("asynchronous") interpretation and rasterizing that gave rise to the
9061 
side-branch versions 5.13 and 5.14; eliminates all initialized non-constant
9062 
globals from the graphics library (but not from the interpreter); and adds a
9063 
few more LanguageLevel 3 features (CIEBasedDEF[G] color spaces, CloseSource
9064 
and CloseTarget for streams, Separation base space for Indexed color
9065 
spaces).
9066 
 
9067 
<p>
9068 
We were not originally planning to produce another fileset until the code
9069 
merge was completed; however, the schedule demands of another Aladdin
9070 
project justify another intermediate fileset.
9071 
 
9072 
<h3><a name="V5.28_Documentation"></a>Documentation</h3><pre>
9073 
 
9074 
Notes that the MSVC++ 5.0 compiler may lock up when compiling gxi12bit.c
9075 
with optimization.  (make.txt)
9076 
 
9077 
</pre><h3><a name="V5.28_Procedures"></a>Procedures</h3><pre>
9078 
 
9079 
Fixes bugs:
9080 
	- psl3 didn't include fzlib.  (int.mak)
9081 
	- The Windows makefile had the wrong name for a DLL.  (winint.mak)
9082 
	- The Borland Windows makefile had several errors.  (bcwin32.mak)
9083 
 
9084 
At the request of a user, changes the creation of jconfig.h so it #includes,
9085 
rather than copies, arch.h.  (jpeg.mak, gsjconf.h)
9086 
 
9087 
</pre><h3><a name="V5.28_Utilities"></a>Utilities</h3><pre>
9088 
 
9089 
Fixes bugs:
9090 
	- viewpbm.ps scaled the image wrong.  (viewpbm.ps)
9091 
 
9092 
</pre><h3><a name="V5.28_Drivers"></a>Drivers</h3><pre>
9093 
 
9094 
Fixes bugs:
9095 
	- clist_close was declared as an open proc rather than a close proc.
9096 
(As it happens, this didn't make any difference.)  (gxclist.c)
9097 
	- A comment was improperly terminated.  (gxpageq.h)
9098 
	- A needed #include of memory_.h was missing.  (gdevpsde.c)
9099 
 
9100 
Integrates nearly all the rest of the code for asynchronous rendering.
9101 
(gdevprn.h, gdevprna.h, gxcldev.h, gxclist.h, gxclpath.h, gxclmem.h,
9102 
gdevbmpa.c, gdevprn.c, gdevprna.c, gxclbits.c, gxclimag.c, gxclist.c,
9103 
gxclmem.c, gxclpath.c, gxclread.c, gxclrect.c)
9104 
 
9105 
Changes tracing of memory-based clists to occur only if -Z: is selected,
9106 
rather than always if the code was compiled with -DDEBUG.  Note that this is
9107 
a NON-BACKWARD-COMPATIBLE CHANGE (but only affects debugging).  (gxclmem.c)
9108 
 
9109 
Implements the NumCopies parameter for all page devices, not just printers.
9110 
(gxdevcli.h, gxdevice.h, gdevprn.c, gsdparam.c)
9111 
 
9112 
Splits off command list writing utilities into a separate file, since
9113 
gxclist.c was getting too large.  (gxclist.h, gxclist.c, gxclutil.c)
9114 
 
9115 
Splits command list reading into control (gxclread.c) and the actual list
9116 
interpreter (gxclrast.c), since the file was getting too large.  (gxcldev.h,
9117 
gxclrast.c, gxclread.c)
9118 
 
9119 
Distinguishes dev_proc_* (defining a general driver procedure) from
9120 
prn_dev_proc_* (defining a printer driver procedure).  Unfortunately, we
9121 
have to keep dev_proc_print_page and _print_page_copies for backward
9122 
compatibility.  (gdevprn.h)
9123 
 
9124 
Splits out of the BMP driver the parts shared with the async version
9125 
(gdevbmp.h, gdevbmp.c, gdevbmpc.c).
9126 
 
9127 
Changes the band rasterizer to implement get_bits_rectangle rather than
9128 
get_bits.  In some cases, this results in much less computation.
9129 
(gxclist.c, gxclread.c)
9130 
 
9131 
Makes the monochrome H-P printer drivers emit a printer reset when closing
9132 
the device.  According to a user, this helps prevent the ink nozzles from
9133 
clogging.  (gdevdjet.c)
9134 
 
9135 
</pre><h3><a name="V5.28_Platforms"></a>Platforms</h3><pre>
9136 
 
9137 
Fixes bugs:
9138 
	- The Windows DLL entry point procedure didn't return a value as it
9139 
was supposed to.  (gp_mswin.c)
9140 
 
9141 
Removes all remaining initialized but non-constant globals, and ensures that
9142 
all non-debugging-related BSS variables in the library are explicitly set to
9143 
 
9144 
 
9145 
Improves an error message slightly.  (dwmainc.cpp)
9146 
 
9147 
</pre><h3><a name="V5.28_Interpreter"></a>Interpreter</h3><pre>
9148 
 
9149 
Fixes bugs:
9150 
	- The tracing code for restore_resources could access an invalid
9151 
address.  (isave.c)
9152 
	- sizeof(procedure) is not allowed in ANSI C++.  (opdef.h,
9153 
iccfont.c, interp.c, ireclaim.c)
9154 
	- A variable was declared incorrectly as bin_token_type_t rather
9155 
than bin_seq_type_t.  (iscanbin.c)
9156 
	- The behavior of copypage didn't change in LanguageLevel 3.
9157 
(gs_init.ps)
9158 
	- When grestore et al reactivated a page device, they performed an
9159 
initgraphics, which should only be performed by showpage.  (gs_setpd.ps)
9160 
	- The RunLengthEncode filter was broken in cases where the caller
9161 
supplied a record size.  (bug introduced in 5.2x) (zfilter.c)
9162 
	- A needed #include of memory_.h was missing.  (zfreuse.c)
9163 
	- On machines with sizeof(long) &gt; sizeof(int), the dictionary form
9164 
of image and imagemask didn't work.  (bug introduced in 5.2x) (zimage2.c)
9165 
	- exitserver left a 'true' on the operand stack.  (gs_lev2.ps)
9166 
 
9167 
Replaces the STACK_LOOP_BEGIN/END macros with procedures.  (We retain the
9168 
macros for backward compatibility.)  (istack.h, istack.c, zchar.c,
9169 
zcontrol.c, zdict.c, zvmem.c)
9170 
 
9171 
Reviews the remaining operator files for ease of reading / debugging,
9172 
including removing macros where appropriate.  (z*.c)
9173 
 
9174 
Changes the dictionary stack printer to indicate whether the dictionary is
9175 
allocated in global or local VM.  (gs_init.ps)
9176 
 
9177 
Redefines countexecstack and execstack as operators, solely for the sake of
9178 
the Genoa [count]execstack tests.  (gs_init.ps, zcontrol.c)
9179 
 
9180 
Changes array/string/packedarray forall not to keep an index on the stack,
9181 
solely for the sake of the Genoa [count]execstack tests.  (zgeneric.c)
9182 
 
9183 
Finishes implementing CIEBasedDEF[G] color spaces.  (icie.h, zcie.c)
9184 
 
9185 
Adds a ColorSpace resource instance for sRGB.  (gs_lev2.ps, gs_res.ps)
9186 
 
9187 
Implements CloseSource and CloseTarget for filters.  ****** DOESN'T WORK IF
9188 
AN EXCEPTION OCCURS DURING A NESTED CLOSE. ****** (zfile.c)
9189 
 
9190 
Allows Separation and DeviceN color spaces as the base space for an Indexed
9191 
color space.  (zcsdevn.c, zcsindex.c, zcssepr.c)
9192 
 
9193 
</pre><h3><a name="V5.28_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
9194 
 
9195 
Fixes bugs:
9196 
	- In PDF files, Indexed color spaces with a CIEBasedABC base space
9197 
gave an /undefined error.  (pdf_draw.ps)
9198 
 
9199 
</pre><h3><a name="V5.28_Streams"></a>Streams</h3><pre>
9200 
 
9201 
Fixes bugs:
9202 
	- The report_error member of the DCT streams wasn't initialized
9203 
early enough.  (ifilter.h, zfdctd.c, zfdcte.c, zfile.c)
9204 
 
9205 
Changes the zlib filters to use the stream's allocator, rather than the
9206 
default allocator, for their private storage.  Note that this requires the
9207 
stream itself to keep pointers to this storage, for garbage collection.
9208 
(szlibx.h, szlibc.c, szlibd.c, szlibe.c)
9209 
 
9210 
Updates some clients to use new, simpler GC structure descriptors.  (sdct.h,
9211 
sfilter.h, sdctc.c, sfilter1.c)
9212 
 
9213 
Adds a close_strm member for the interpreter's use (CloseSource /
9214 
CloseTarget).  (stream.h, stream.c)
9215 
 
9216 
</pre><h3><a name="V5.28_Library"></a>Library</h3><pre>
9217 
 
9218 
Fixes bugs:
9219 
	- gstate, currentgstate, and setgstate didn't handle the effective
9220 
clip path properly, possibly leading to dangling pointers.  (gsstate.c)
9221 
	- setrasterop, setsourcetransparent, and settexturetransparent
9222 
should all return int rather than void, since they can fail.  (gsrop.h,
9223 
gsrop.c)
9224 
	- FunctionType 1 functions didn't clip the output value to the
9225 
Range.  (gsfunc3.c)
9226 
	- A needed cast from byte * to char * was missing.  (gscrdp.c)
9227 
	- Some needed #includes of *_.h were missing.  (gscrd.c, gscrdp.c,
9228 
gxshade6.c)
9229 
	- The prototype for gx_effective_clip_path wasn't #included in a
9230 
needed place.  (gsimage.c)
9231 
	- RasterOp sometimes didn't work properly for devices whose
9232 
representation of white wasn't a pixel value of 0.  (gxdcolor.h, gdevbbox.c,
9233 
gdevdbit.c, gdevvec.c, gslib.c, gxdcolor.c)
9234 
	- The variable used to detect double declaration of
9235 
gs_get_bits_params_t was named incorrectly.  (gxdevcli.h, gxgetbit.h)
9236 
	- gs_[eo]clip never retained the clipping path in its original form.
9237 
These routines now retain it in the simple case (the old clipping path is a
9238 
rectangle, and the new path is completely contained within it).  This
9239 
requires a small NON-BACKWARD-COMPATIBLE change in the gx_cpath_intersect
9240 
procedure: it no longer updates the new path, and it flattens the path if
9241 
needed.  To avoid problems, we renamed this procedure as gx_cpath_clip.
9242 
(gsdps.c, gspath.c, gxcpath.c)
9243 
	- If the image was empty, gs_image_common_init didn't free the
9244 
lower-level enumerator.  (gsimage.c, gxccache.c)
9245 
 
9246 
Removes all remaining initialized but non-constant globals, and ensures that
9247 
all non-debugging-related BSS variables in the library are explicitly set to
9248 
 
9249 
gsiodev.c, gsutil.c, gxcht.c)
9250 
 
9251 
Finishes implementing table-driven GC descriptors.  We expected it to save
9252 
considerable space at negligible time cost; it actually shrank the 1Mb
9253 
executable by only about 5K, and slowed down garbage collection by about
9254 
2%. (gsfcmap.h, gsstrtab.h [deleted], gsstruct.h, gzpath.h, gsfcmap.c,
9255 
gsmemory.c, gsstrtab.c [deleted])
9256 
 
9257 
Finishes implementing CIEBasedDEF[G] color spaces.  (gscie.h, gscie.c)
9258 
 
9259 
Simplifies some code by removing or redefining macros.  (gxi12bit.c)
9260 
 
9261 
Removes all patches made for easier retrofitting of 5.2x code into 5.1x
9262 
filesets.  (gdevdrop.c, gdevmrop.c, gslib.c, gspcolor.c)
9263 
 
9264 
Reviews a few more files for style and readability.  (gxbitfmt.h,
9265 
gxgetbit.h)
9266 
 
9267 
Allows Separation (and, if included, DeviceN) color spaces as the base space
9268 
of an Indexed color space.  Unfortunately, this involves introducing a new
9269 
distinction in color space types, which entails NON-BACKWARD-COMPATIBLE
9270 
changes in the color space and color space type structures.  (gxcspace.h,
9271 
gscdevn.c, gscolor1.c, gscolor2.c, gscpixel.c, gscscie.c, gscsepr.c,
9272 
gscspace.c, gspcolor.c)
9273 
 
9274 
Makes a small addition in order to fix an interpreter bug.  (gxfixed.h,
9275 
gdevbbox.c)
9276 
 
9277 
</pre>
9278 
 
9279 
<hr>
9280 
 
9281 
<h2><a name="Version5.27"></a>Version 5.27 (limited) (7/18/98)</h2>
9282 
 
9283 
<p>
9284 
This is another "in-flight" snapshot made in preparation for the 5.2x / 5.1x
9285 
code merge.  It completes the driver CRD API.
9286 
 
9287 
<h3><a name="V5.27_Documentation"></a>Documentation</h3><pre>
9288 
 
9289 
Fixes bugs:
9290 
	- The reference to psview was out of date.  (new-user.txt)
9291 
 
9292 
Adds some pointers to Aladdin Ghostscript mirror sites.  (new-user.txt)
9293 
 
9294 
Updates the C style guide a little further.  (c-style.txt)
9295 
 
9296 
Adds documentation on driver-supplied CRDs.  (drivers.txt)
9297 
 
9298 
Updates the JPEG makefile to mention IJG release 6b.  (jpeg.mak)
9299 
 
9300 
Updates documentation to reflect the devs.mak / contrib.mak split.  (README,
9301 
devices.txt, drivers.txt, make.txt, new-user.txt, source.txt, use.txt)
9302 
 
9303 
</pre><h3><a name="V5.27_Procedures"></a>Procedures</h3><pre>
9304 
 
9305 
Fixes bugs:
9306 
	- sjpegerr.o was needed even when using the shared JPEG library.
9307 
(jpeg.mak)
9308 
 
9309 
Changes the name of the jpeg library directory from jpeg-&lt;version&gt; to just
9310 
jpeg, to parallel libpng and zlib.  (make.txt, *.mak)
9311 
 
9312 
Creates a separate makefile for contributed drivers.  Eventually these
9313 
drivers will go in a separate directory.  (devs.mak, contrib.mak, *.mak)
9314 
 
9315 
</pre><h3><a name="V5.27_Drivers"></a>Drivers</h3><pre>
9316 
 
9317 
Fixes bugs:
9318 
	- The pkm driver was absurdly inefficient.  (gdevpbm.c)
9319 
	- The psfax driver (which, admittedly, doesn't come close to
9320 
working) no longer compiled.  (gdevpfax.c)
9321 
	- The ARCHAIC mode of the Epson driver emitted an incorrect
9322 
character ('r' instead of ^R).  (gdevepsn.c)
9323 
	- The X driver didn't check the calls of XInitImage for error
9324 
status.  (gdevx.c)
9325 
 
9326 
Updates a client for the change in the names of the gb_ values.  (gdevx.c)
9327 
 
9328 
Updates a client for the added param_request procedure.  (gdevpsdf.c)
9329 
 
9330 
Reformats all Aladdin-maintained drivers to the new Ghostscript standard
9331 
format, using indent.  We deliberately did not reformat user-contributed
9332 
drivers, since indent mangles a line once in a while and we do not want to
9333 
take responsibility for fixing others' code.  (*.h, *.c)
9334 
 
9335 
Adds a default CRD specification to the 'bit' device, for testing.
9336 
(gdevbit.c)
9337 
 
9338 
Integrates a bit more of the support code for asynchronous rasterizing.
9339 
(gxband.h, gxclio.h, gxclist.h, gxclmem.h, gxclfile.c, gxclist.c, gxclmem.c,
9340 
gxclread.c, gxpageq.h, gxpageq.c)
9341 
 
9342 
</pre><h3><a name="V5.27_Platforms"></a>Platforms</h3><pre>
9343 
 
9344 
Adds thread support to the Win32 platform.  (gp_win32.c)
9345 
 
9346 
</pre><h3><a name="V5.27_Interpreter"></a>Interpreter</h3><pre>
9347 
 
9348 
Fixes bugs:
9349 
	- Composite fonts with CID-keyed descendants didn't run the
9350 
BuildGlyph procedure.  (zchar.c)
9351 
	- The internal representation of CMaps was built incorrectly.
9352 
(zfcmap.c)
9353 
	- Category resources didn't load from files automatically.
9354 
(gs_res.ps)
9355 
 
9356 
Reformats all files to the new Ghostscript standard format, using indent.
9357 
(*.h, *.c)
9358 
 
9359 
Reviews most of the operator files for ease of reading / debugging,
9360 
including removing macros where appropriate.  (z*.c)
9361 
 
9362 
Updates a client for the change in the names of the gb_ values.  (zdevice.c)
9363 
 
9364 
Updates a client for the added param_request procedure.  (iparam.c)
9365 
 
9366 
Updates clients for the completion of the CRD API.  (zcie.c, zcrd.c)
9367 
 
9368 
Increases the initial size of systemdict a little more, to allow for -d and
9369 
-s.  (iinit.c)
9370 
 
9371 
</pre><h3><a name="V5.27_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
9372 
 
9373 
Fixes bugs:
9374 
	- Text modes other than 0 didn't work with multiple-byte fonts.
9375 
(pdf_ops.ps)
9376 
	- There were many bugs in the code for Type 0 and CIDFontType 0
9377 
fonts.  (pdf_font.ps)
9378 
 
9379 
</pre><h3><a name="V5.27_Library"></a>Library</h3><pre>
9380 
 
9381 
Fixes bugs:
9382 
	- cshow returned a character code of -1 for composite fonts with
9383 
FMapType 9 (CMap-based).  (gsfcmap.h, gschar0.c, gsfcmap.c)
9384 
	- The GC procedure for enumerating show enumerators was broken.
9385 
(bug introduced in 5.24 or 5.25) (gschar.c)
9386 
	- dashpath always copied the path, instead of only copying it if
9387 
needed.  (gspath1.c)
9388 
	- The hint replacement fix in 5.24 sometimes thought a path was
9389 
closed when it wasn't, producing gross distortions of some characters.
9390 
(gxhint3.c)
9391 
 
9392 
Cleans up code for debugging by expanding macros, etc.  (gstext.h,
9393 
gschar0.c)
9394 
 
9395 
Changes the gb_ values to all caps, in line with general C convention.  This
9396 
is a NON-BACKWARD-COMPATIBLE change to an as yet rarely-used API.
9397 
(gxbitfmt.h, gdevalph.c, gdevdgbr.c, gdevmem.c, gsalphac.c, gximage2.c)
9398 
 
9399 
Enhances the default implementation of parameter lists to allow requesting
9400 
individual parameters.  This is needed for the driver CRD API.  (gsparam.h,
9401 
gscparam.c, gsparam.c)
9402 
 
9403 
Completes the API for driver CRDs, also moving some code from gscie.c to
9404 
gscrd.c.  This involves a NON-BACKWARD-COMPATIBLE change in the prototype of
9405 
the TransformPQR procedures.  (gscie.h, gscrd.h, gscrdp.h, gscie.c, gscrd.c,
9406 
gscrdp.c)
9407 
 
9408 
Reformats all files to the new Ghostscript standard format, using indent.
9409 
(*.h, *.c)
9410 
 
9411 
Splits up gdevmrop.c into 3 files: gdevmrop.c (RasterOp implementation for
9412 
memory devices), gdevdrop.c (default and device-independent RasterOp
9413 
algorithms), and gdevrops.c (RasterOp-source device).  (gdevmrop.h,
9414 
gdevdrop.c, gdevmrop.c, gdevrops.c)
9415 
 
9416 
</pre>
9417 
 
9418 
<hr>
9419 
 
9420 
<h2><a name="Version5.26"></a>Version 5.26 (limited) (7/7/98)</h2>
9421 
 
9422 
<p>
9423 
The purpose of this fileset is to add an API for drivers to provide one or
9424 
more device-appropriate CIE rendering dictionaries.  Like 5.25, it is a
9425 
"snapshot" fileset not made available even to beta testers.
9426 
 
9427 
<h3><a name="V5.26_Procedures"></a>Procedures</h3><pre>
9428 
 
9429 
Fixes bugs:
9430 
	- An !endif was omitted.  (msvc32.mak)
9431 
	- A newly needed Windows library was omitted.  (msvctail.mak)
9432 
	- The /Za and /Ze switches were set incorrectly for MSVC.
9433 
(bcwin32.mak, msvccmd.mak, watcw32.mak, winint.mak, winlib.mak)
9434 
 
9435 
</pre><h3><a name="V5.26_Drivers"></a>Drivers</h3><pre>
9436 
 
9437 
Fixes bugs:
9438 
	- A closing bracket was omitted (in code that is ifdef'd out).
9439 
(gdevpdf.c)
9440 
 
9441 
</pre><h3><a name="V5.26_Fonts"></a>Fonts</h3><pre>
9442 
 
9443 
Changes the font loader so that instead of pushing systemdict and a small
9444 
empty dictionary on the stack before loading a font, it pushes userdict.
9445 
This is what Adobe interpreters do, but this will probably break some
9446 
PostScript files, specifically ones that redefine 'index'.  I don't see how
9447 
the Adobe interpreters can possibly do the right thing for such files.
9448 
(gs_fonts.ps, gs_type1.ps)
9449 
 
9450 
</pre><h3><a name="V5.26_Interpreter"></a>Interpreter</h3><pre>
9451 
 
9452 
Updates clients for changes in CRD API.  This involves some changes in
9453 
internal procedures.  (gs_lev2.ps, icie.h, zcie.c, zcrd.c)
9454 
 
9455 
</pre><h3><a name="V5.26_Library"></a>Library</h3><pre>
9456 
 
9457 
Fixes bugs:
9458 
	- Pickling string, name, and array parameters tried to force
9459 
inappropriate alignment.  (gsparams.c)
9460 
	- Pickling dictionary parameters wrote the result in the wrong
9461 
place.  (gsparams.c)
9462 
	- An occurrence of dev_t should have been gx_device.  The compiler
9463 
didn't catch this because there happens to be a type named dev_t in
9464 
&lt;types.h&gt; (!).  (gxclread.c)
9465 
 
9466 
Adds an API for drivers to provide one or more CRDs (as device parameters).
9467 
Makes a small but NON-BACKWARD-COMPATIBLE change in the names and argument
9468 
lists of the existing CRD API (which is not used by anything in the standard
9469 
configuration).  (gscie.h, gscrd.h, gscrdp.h, gscie.c, gscrd.c, gscrdp.c,
9470 
gslib.c)
9471 
 
9472 
</pre>
9473 
 
9474 
<hr>
9475 
 
9476 
<h2><a name="Version5.25"></a>Version 5.25 (limited) (7/1/98)</h2>
9477 
 
9478 
<p>
9479 
This is a "snapshot" fileset created for the purpose of merging with a
9480 
separate development branch.  While it fixes some significant bugs in 5.24,
9481 
it doesn't represent substantial additional progress.
9482 
 
9483 
<h3><a name="V5.25_Documentation"></a>Documentation</h3><pre>
9484 
 
9485 
Completely rearranges the C style guide, updates it to reflect current
9486 
practice, and adds a 1-page summary of the most important points.
9487 
(c-style.txt)
9488 
 
9489 
Updates the man pages for consistency and to correct minor errors.  (*.1)
9490 
 
9491 
Notes that the pjxl300 driver works with the H-P CopyJet.  (devices.txt,
9492 
devs.mak).
9493 
 
9494 
Notes that in order to deal with over-zealous Solaris security checking,
9495 
additional linker switches are needed.  (make.txt, unix*.mak)
9496 
 
9497 
</pre><h3><a name="V5.25_Procedures"></a>Procedures</h3><pre>
9498 
 
9499 
Fixes bugs:
9500 
	- 'make install' didn't get the executable from the right place.
9501 
unixinst.mak)
9502 
	- COMPILE_INITS=1 didn't work.  (int.mak, geninit.c)
9503 
	- The MSVC makefile updates hadn't been applied to the MSVC-only
9504 
devices.  (devs.mak)
9505 
	- The other PC makefiles didn't define GLCCWIN.  (bcwin32.mak,
9506 
watcw32.mak)
9507 
 
9508 
Adds bounding box testing to the library test program.  (ugcclib.mak)
9509 
 
9510 
Reviews and reformats code for maintainability.  (genarch.c, geninit.c)
9511 
 
9512 
Moves the MS Windows-specific devices to a new file.  (bcwin32.mak,
9513 
devs.mak, msdevs.mak, msvc32.mak, watcw32.mak)
9514 
 
9515 
</pre><h3><a name="V5.25_Platforms"></a>Platforms</h3><pre>
9516 
 
9517 
Reviews and reformats header files for maintainability.  (vmsmath.h,
9518 
windows_.h)
9519 
 
9520 
Removes some no-longer-used files from the fileset.  (overlay.h, gp_itbc.c)
9521 
 
9522 
</pre><h3><a name="V5.25_Fonts"></a>Fonts</h3><pre>
9523 
 
9524 
Fixes bugs:
9525 
	- Substituted fonts had their FontName set to the requested one.
9526 
There was a comment in the code saying that some files that depend on this
9527 
happening, but Adobe implementations don't do it.  However, aliased fonts in
9528 
Fontmap will continue to have the FontName set to the Fontmap key.
9529 
(gs_fonts.ps)
9530 
 
9531 
Adds the euro symbol at position 240 (0360) in SymbolEncoding.  This is a
9532 
PostScript 3 addition, but it's too much work to make it appear there only
9533 
if languagelevel &gt;= 3.  (gs_sym_e.ps)
9534 
 
9535 
</pre><h3><a name="V5.25_Interpreter"></a>Interpreter</h3><pre>
9536 
 
9537 
Fixes bugs:
9538 
	- The bbox device didn't work if its target was itself a forwarding
9539 
device.  (gdevbbox.c)
9540 
	- User parameters maintained at the PostScript (as opposed to VM)
9541 
level didn't work.  (gs_init.ps)
9542 
	- Idiom recognition didn't work.  (gs_init.ps, gs_ll3.ps, zmisc3.c)
9543 
	- .beginpage and .endpage could cause an error if the current device
9544 
was a page device but was installed with setdevice rather than
9545 
setpagedevice.  (gs_setpd.ps)
9546 
 
9547 
In the interest of readability, replaces all casting macros with separate
9548 
variables, other than those used in enum_ptrs and reloc_ptrs procedures.
9549 
Note that doing this for rptr in gc_trace in igc.c will have a significant
9550 
performance cost on Intel CPUs, unless the compiler has a very good
9551 
optimizer, because it introduces another variable competing for scarce
9552 
registers in the most performance-critical section of code in the garbage
9553 
collector.  (ialloc.c, igc.c, iparam.c, isave.c, istack.c, zchar42.c,
9554 
zfproc.c, zusparam.c)
9555 
 
9556 
Changes some macros to procedures.  (igc.c, ilocate.c, zusparam.c)
9557 
 
9558 
Changes some macros to static quasi-constants (only variable for debugging).
9559 
(zvmem.c)
9560 
 
9561 
Adds #include "errors.h" to oper.h, removing it from z*.c.  (oper.h, z*.c)
9562 
 
9563 
Reviews and reformats some header files for maintainability.  This is an
9564 
ongoing project.  (bfont.h, errors.h, iinit.c)
9565 
 
9566 
Consolidates and simplifies the reading and writing of binary tokens and
9567 
binary object sequences.  (bseq.h [deleted], btoken.h, ibnum.h, ibnum.c,
9568 
iscanbin.c, zbseq.c)
9569 
 
9570 
Adds dummy user and system parameter entries for all the parameters listed
9571 
in Appendix C of the PostScript Red Book: even though the book clearly says
9572 
that no PostScript program should rely on the presence of any particular
9573 
parameter, PostScript files routinely assume the existence of the parameters
9574 
listed in Appendix C.  (gs_init.ps, gs_lev2.ps, gs_res.ps)
9575 
 
9576 
Adds dummy user and system parameter entries for the new parameters listed
9577 
in the 3010 Supplement.  (gs_ll3.ps)
9578 
 
9579 
Adds double-inclusion protection to all header files.  (*.h)
9580 
 
9581 
Moves the creation of binary object sequence headers from C to PostScript
9582 
code.  (zbseq.c, gs_btokn.ps)
9583 
 
9584 
Adds support for multiple FormTypes and ColorRenderingTypes.  (gs_init.ps,
9585 
gs_lev2.ps, gs_res.ps, zcrd.c)
9586 
 
9587 
Updates structures and clients for the introduction of "raw memory"
9588 
allocators.  (ialloc.h, igc.h, ialloc.c, imain.c, isave.c)
9589 
 
9590 
In the interest of readability and being able to use GNU indent to create
9591 
standard formatting, changes the operator tables from procedures back to
9592 
data structures.  This change is backward-compatible for all operator files,
9593 
although we also edited all of Ghostscript's own operator definitions to
9594 
remove the BEGIN_OP_DEFS and END_OP_DEFS macros (which now have to generate
9595 
a little unnecessary code for backward compatibility). (opdef.h, iconf.c,
9596 
iinit.c, iutil.c, z*.c)
9597 
 
9598 
Splits zchar2.c into a Level 1+ part and a Level 2 part.  (zcfont.c,
9599 
zchar2.c)
9600 
 
9601 
</pre><h3><a name="V5.25_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
9602 
 
9603 
Adds font synthesis based on the FontDescriptor.  Currently this is very
9604 
rudimentary.  (pdf_font.ps)
9605 
 
9606 
</pre><h3><a name="V5.25_Drivers"></a>Drivers</h3><pre>
9607 
 
9608 
Fixes bugs:
9609 
	- The PDF writer didn't default to A4 paper size if A4 was selected
9610 
as the default in the makefile.  (gdevpdf.c)
9611 
	- The default implementation of the begin_image procedure always
9612 
called the image's begin_image implementation, rather than the device's
9613 
begin_typed_image implementation.  (gdevddrw.c)
9614 
	- The bbox device didn't initialize its reference count.
9615 
(gdevbbox.c)
9616 
	- A necessary cast was omitted.  (gdevpsde.c)
9617 
 
9618 
Changes some macros to procedures.  (gdevpstr.h, gdevpstr.c)
9619 
 
9620 
Adds an internal device to implement the PCL5 special color mapping
9621 
algorithms.  (gdevcmap.h, gxdevice.h, gdevcmap.c, gdevnfwd.c)
9622 
 
9623 
Adds double-inclusion protection to all header files.  (*.h)
9624 
 
9625 
Updates drivers for the change in begin_image.  (gdevbbox.c, gdevpdfi.c,
9626 
gdevvec.c, gxclimag.c)
9627 
 
9628 
</pre><h3><a name="V5.25_Library"></a>Library</h3><pre>
9629 
 
9630 
Fixes bugs:
9631 
	- The non-ANSI definitions of CLEAR_MARKS_PROC, ENUM_PTRS_BEGIN_PROC
9632 
and RELOC_PTRS_BEGIN were missing a parameter.  (gsstruct.h)
9633 
	- A few necessary casts were omitted.  (gsparam.c, gxpcmap.c)
9634 
	- Images or Patterns with non-default RasterOps could cause crashes.
9635 
(gdevmrop.c, gxp1fill.c)
9636 
	- Exponential Interpolation functions with non-integral positive
9637 
exponents incorrectly required the lower bound of the domain to be strictly
9638 
positive rather than only non-negative.  (gsfunc3.c)
9639 
	- The attempt to achieve the desired color smoothness when shading
9640 
could compute (nearly) forever.  (gxshade.c, gxshade1.c)
9641 
	- The arc change in 5.24 caused arcs to render incorrectly.
9642 
(gspath1.c)
9643 
	- The macro-reducing cleanup in 5.24 introduced a bug in handling
9644 
copy operations with negative skew.  (gdevm1.c)
9645 
 
9646 
Adds unmasked images and bounding box testing to the library test program.
9647 
(gxdevcli.h, gslib.c)
9648 
 
9649 
Changes some macros to procedures.  (gxfunc.h, gsfunc.c, gsfunc0.c,
9650 
gsfunc3.c)
9651 
 
9652 
Adds double-inclusion protection to all header files.  (*.h)
9653 
 
9654 
Reviews and reformats header files for maintainability.  (*_.h, dodebug.h
9655 
[deleted])
9656 
 
9657 
Changes the structure of the common part of the image enumerator to include
9658 
the device (which may be different from the original device, because of
9659 
forwarding), and to access the procedures through a pointer to a const
9660 
structure.  This is a NON-BACKWARD-COMPATIBLE CHANGE for implementors of
9661 
begin_image, since they now must pass the device to
9662 
gx_image_enum_common_init.  (gximage.h, gxiparam.h, gdevddrw.c, gdevdflt.c,
9663 
gxiinit.c, gximage3.c, gximage4.c)
9664 
 
9665 
Adds tests of the new color mapping device to the library test program.
9666 
(gslib.c)
9667 
 
9668 
Removes the last vestiges of segmented pointers.  (genarch.c, std.h)
9669 
 
9670 
Introduces a "raw memory" API, primarily for managing the underlying memory
9671 
pool for embedded systems.  This involves a NON-BACKWARD-COMPATIBLE-CHANGE
9672 
in the implementation (but not ordinary clients) of allocators.
9673 
(gsmemory.h, gsmemraw.h, gxalloc.h, gsalloc.c, gsmalloc.c, gsmemory.c)
9674 
 
9675 
</pre>
9676 
 
9677 
<hr>
9678 
 
9679 
<h2><a name="Version5.24"></a>Version 5.24 (limited) (6/17/98)</h2>
9680 
 
9681 
<p>
9682 
In addition to the usual bug fixes, and a few enhancements where temptation
9683 
proved irresistible or in response to an external need, this fileset:
9684 
<ul>
9685 
<li>	- Takes the first steps on a major readability cleanup
9686 
	(4-space indentation instead of 2, replacement of macros by
9687 
	procedures, ....)
9688 
 
9689 
<li>	- Implements a bit more of the DPS functionality, including view
9690 
	clipping, and gstate stack copying for 'fork'.
9691 
 
9692 
<li>	- Starts to sketch a text API for drivers.
9693 
 
9694 
<li>	- Changes the Unix makefiles so that they create production
9695 
binaries
9696 
	in a separate directory.
9697 
</ul>
9698 
 
9699 
<p>
9700 
Again, there are some non-backward-compatible changes required by other
9701 
architectural improvements.  As always, we have tried to minimize the impact
9702 
of such changes on users' code.
9703 
 
9704 
<h3><a name="V5.24_Documentation"></a>Documentation</h3><pre>
9705 
 
9706 
Fixes bugs:
9707 
	- The -Kn switch wasn't documented.  (use.txt)
9708 
	- The term "Software" was used instead of "Program" in the last
9709 
paragraphs of the license.  (PUBLIC)
9710 
 
9711 
Adds a couple of missing operators to the list at the end of ostack.h.
9712 
(ostack.h)
9713 
 
9714 
Documents more precisely which gstate points to which objects after various
9715 
gstate operations.  (gsstate.c)
9716 
 
9717 
Corrects some addresses for the Free Software Foundation.  (commprod.txt,
9718 
new-user.txt)
9719 
 
9720 
Improves the documentation for memory management of color spaces.  (gscie.h,
9721 
gscolor2.h)
9722 
 
9723 
Updates the list of hardware available to Aladdin.  (new-user.txt)
9724 
 
9725 
Documents ReopenPerPage.  (language.txt)
9726 
 
9727 
Moves the documentation of image rendering procedures to a better place.
9728 
(gximage.h, gxiinit.c)
9729 
 
9730 
Clarifies that old slzwe.c files may not work with current Ghostscript
9731 
versions.  (make.txt)
9732 
 
9733 
</pre><h3><a name="V5.24_Procedures"></a>Procedures</h3><pre>
9734 
 
9735 
Fixes bugs:
9736 
	- psl3.dev didn't include func.dev.  (int.mak)
9737 
	- device and device2 devices weren't sorted together, causing
9738 
devices to appear in the list out of order (including, possibly, selecting
9739 
the wrong device as default).  (genconf.c)
9740 
	- The mswindll module definition omitted some needed files.
9741 
(devs.mak)
9742 
 
9743 
Changes the optimization level for gcc from -O to -O2 for both standard and
9744 
profiling builds.  (unix-gcc.mak)
9745 
 
9746 
Defines 3 new makefile macros for the Unix platforms,
9747 
CFLAGS_{STANDARD|DEBUG|PROFILE}, that give the additional compiler switches
9748 
for these 3 compilation options.  (unixansi.mak, unix-cc.mak, unix-gcc.mak)
9749 
 
9750 
Changes the Unix makefiles so that by default they create the binaries in an
9751 
'obj' subdirectory of the source directory.  (unixansi.mak, unix-cc.mak,
9752 
unix-gcc.mak, unix-end.mak)
9753 
 
9754 
Updates the MSVC++ makefiles so they allow setting any configuration
9755 
parameter from the make command line.  (msvc32.mak, msvccmd.mak, msvccom.mak
9756 
[deleted], msvclib.mak, msvctail.mak)
9757 
 
9758 
</pre><h3><a name="V5.24_Utilities"></a>Utilities</h3><pre>
9759 
 
9760 
Fixes bugs:
9761 
	- ps2ascii was broken.  (ps2ascii.ps)
9762 
 
9763 
Adds capability to gslp.ps:
9764 
 
9765 
	- Variable-width fonts (but without automatic line breaking);
9766 
 
9767 
	- Pair kerning (from AFM file);
9768 
 
9769 
	- Inter-character and space width adjustment.
9770 
 
9771 
This project was done for a paying customer.  (gslp.ps)
9772 
 
9773 
</pre><h3><a name="V5.24_Drivers"></a>Drivers</h3><pre>
9774 
 
9775 
Fixes bugs:
9776 
	- The name of the plan9bm device was wrong.  (gdevpbm.c)
9777 
	- The PDF writer wrote incorrect parameters for the CCITTFax filter
9778 
used to compress Type 3 font bitmaps.  (bug introduced in 5.23) (gdevpdfi.c)
9779 
	- The PDF writer emitted two 'endobj' lines for Type 3 bitmap fonts.
9780 
(gdevpdf.c)
9781 
 
9782 
Removes all remaining uses of _ds and _ss in Aladdin's drivers.  (gdevprn.h,
9783 
gdevsvga.h, gdevbit.c, gdevcgm.c, gdevdjet.c, gdevmsxf.c, gdevpbm.c,
9784 
gdevpccm.c, gdevpcfb.c, gdevpdfi.c, gdevprn.c, gdevsvga.c, gdevtfax.c)
9785 
 
9786 
Renames a local macro named END.  (gdevcgml.c)
9787 
 
9788 
Removes all uses of far_data other than for device (but not device2)
9789 
prototypes.  (gdevbit.c, gdevdjet.c, gdevemap.c, gdevmsxf.c, gdevpbm.c,
9790 
gdevpcfb.c, gdevpcx.c, gdevpdf.c, gdevpng.c, gdevps.c, gdevpsim.c, gdevpx.c,
9791 
gdevtfax.c, gdevtfnx.c, gdevvglb.c, gdevx.c, gdevxalt.c)
9792 
 
9793 
Adds a psrgb driver that writes PostScript (Level 2) planar,
9794 
run-length-compressed, 24-bit RGB images.  (gdevpsci.c)
9795 
 
9796 
Starts to define and implement a driver procedure for text.  This interface
9797 
will certainly change in the future as we get more insight into the division
9798 
of responsibility and control flow between generic code, individual drivers,
9799 
and internal and external fonts.  This involves a major
9800 
NON-BACKWARD-COMPATIBLE CHANGE in the gs_show_enum structure (which no
9801 
client should be accessing directly).  (gdevmem.h, gdevprn.h, gstext.h,
9802 
gxchar.h, gxdevcli.h, gxdevice.h, gxtext.h, gdevbbox.c, gdevht.c,
9803 
gdevnfwd.c, gschar.c, gschar0.c, gstext.c, gxacpath.c, gxclip.c, gxclip2.c,
9804 
gxclipm.c, gxclist.c, gxpcmap.c)
9805 
 
9806 
Extends the parameter list printer to handle names and arrays.  (gdevpsdf.c)
9807 
 
9808 
Implements the ability to write out a Type 1 font definition, for embedding
9809 
fonts in PDF output.  Currently this code isn't called from anywhere, and it
9810 
will certainly be subject to change in the future.  (gdevpsdf.h, gdevpdfi.c,
9811 
gdevpsde.c, gdevpsdf.c)
9812 
 
9813 
Adds the PCL XL Protocol Class 2.0 operators, attributes, and enumerated
9814 
values to the relevant header files.  (gdevpxat.h, gdevpxen.h, gdevpxop.h)
9815 
 
9816 
Converts some additional devices to -dev2, to make them const.  (devs.mak,
9817 
gdevjpeg.c)
9818 
 
9819 
To help in debugging, changes all uses of
9820 
	#define ss ((stream_xxx_state *)st)
9821 
to
9822 
	stream_xxx_state * const ss = (stream_xxx_state *)st;
9823 
(gdevpdfi.c, gdevpsdi.c, gdevpsdp.c, gdevpsds.c)
9824 
 
9825 
Massages mem_mono_copy_mono and mem_mono_strip_tile_rectangle to reduce the
9826 
use of macros somewhat.  (gdevm1.c, gdevmem.h)
9827 
 
9828 
Makes a change to support the change in gs_param_list_common.  (gdevpsdf.c)
9829 
 
9830 
Replaces all remaining uses of do { ... } while (0) with BEGIN ... END.
9831 
(gdevpdfm.c, gdevpx.c, gdevx.c, gdevxalt.c)
9832 
 
9833 
Adds a ReopenPerPage Boolean device parameter for printers, which causes the
9834 
output file to be closed and reopened for each page.  This may be helpful in
9835 
persuading spoolers to start printing as soon as the first page is
9836 
available.  (gdevprn.h, gdevprn.c)
9837 
 
9838 
Makes the %-format validator for output file names a procedure, even though
9839 
it's only called in one place.  (gdevprn.c)
9840 
 
9841 
Updates some clients for the change from std_procs to procs.  (gdevp2up.c,
9842 
gdevpbm.c, gdevupd.c,
9843 
 
9844 
Removes the use of the CleanFaxData tag (327) from TIFF output, since many
9845 
applications don't recognize it and it isn't in the TIFF 6 documentation.
9846 
(gdevtifs.h, gdevtfax.c)
9847 
 
9848 
</pre><h3><a name="V5.24_Platforms"></a>Platforms</h3><pre>
9849 
 
9850 
Adds a new gp_setmode_binary platform procedure, to set a file into binary
9851 
mode on platforms that distinguish text and binary.  (gp.h, gp_*.c)
9852 
 
9853 
</pre><h3><a name="V5.24_Fonts"></a>Fonts</h3><pre>
9854 
 
9855 
Fixes bugs:
9856 
	- The derived (Bold, Oblique, ...) Hershey fonts were broken.
9857 
(fonts/makeher.ps, fonts/h*.ps)
9858 
 
9859 
</pre><h3><a name="V5.24_Interpreter"></a>Interpreter</h3><pre>
9860 
 
9861 
Fixes bugs:
9862 
	- As always, gcc failed to report some signed/unsigned char *
9863 
mismatches.  (imainarg.c)
9864 
	- Some needed #includes were missing.  (zcrd.c, ztype.c)
9865 
	- Contexts were always allocated in global VM (should be local VM),
9866 
and were freed in the current VM (should be local VM).  Fixing this required
9867 
changing some internal interfaces defined in icontext.h.  (icontext.h,
9868 
icontext.c, interp.c, zcontext.c)
9869 
	- restore did some unnecessary gsaves.  (zvmem.c)
9870 
	- Creating a new context didn't initialize the graphics state
9871 
properly, and didn't do the first gsave that grestoreall relies on.
9872 
(gs_dps.ps)
9873 
	- The bookkeeping for open files didn't work with multiple contexts.
9874 
Fixing this required a substantial (simplifying) redesign of the
9875 
interpreter's bookkeeping for streams in general: this may have introduced
9876 
new bugs.  (files.h, ireclaim.c, isave.c, zfile.c)
9877 
	- fork didn't copy the graphics state stack.  (zcontext.c)
9878 
	- The space bits were set incorrectly in the array reference for the
9879 
operand stack, causing the garbage collector not to mark the operand stack
9880 
of contexts other than the current one.  (interp.c)
9881 
	- LanguageLevel 3 facilities weren't enabled when desired.
9882 
(gs_ll3.ps, ilevel.h, opdef.h, iinit.c, zcsdevn.c, zimage3.c, zmisc2.c,
9883 
zmisc3.c, zshade.c, ztrap.c)
9884 
	- flushfile with a procedure-target stream didn't pass the buffered
9885 
data to the procedure.  We tinkered with this a little, but it still isn't
9886 
fixed.  (zfilter.c, zfproc.c)
9887 
	- The top-level color space objects allocated by the CIE color space
9888 
setting operators were never freed (until garbage collection).  (zcie.c)
9889 
	- setpagedevice with a 0-size page didn't fail.  (gs_setpd.ps,
9890 
zmedia2.c)
9891 
	- If one or more of the matrices in a CIE color space or CRD was
9892 
singular, setcolorspace or setcolorrendering could cause a stackoverflow.
9893 
(zcie.c)
9894 
	- defineuserobject didn't work.  (I don't see how it could ever have
9895 
worked.)  (gs_dps2.ps)
9896 
	- The version string wasn't read-only.  (gs_init.ps, gs_lev2.ps,
9897 
gs_ll3.ps)
9898 
	- Some standard resource categories weren't defined (which they need
9899 
to be, even if they have no instances).  (gs_res.ps, gs_ll3.ps)
9900 
	- The Trapping ProcSet was empty.  (gs_ll3.ps)
9901 
	- setvmthreshold didn't accept a value of -1.  (gs_lev2.ps,
9902 
gs_pdfwr.ps, zusparam.c, zvmem2.c)
9903 
	- Binary tokens containing native reals with swapped byte order
9904 
didn't read in properly.  (ibnum.c, iscanbin.c)
9905 
	- In binary object sequences, many executable objects were
9906 
incorrectly written out as literal.  (zbseq.c)
9907 
	- String DataSources for shadings didn't work.  (zshade.c)
9908 
	- Parameter dictionaries with integer keys didn't work.  (iparam.c)
9909 
	- A "can't happen" condition caused massive confusion instead of a
9910 
rangecheck error.  (gs_setpd.ps)
9911 
	- setcachelimit and setcacheparams were broken, because they no
9912 
longer interacted correctly with setuserparams and setsystemparams.
9913 
(gs_lev2.ps)
9914 
	- The source width and height of images was arbitrarily limited to
9915 
32767.  (zimage2.c)
9916 
	- The optional dictionary parameter for filters was the last
9917 
operand, not the first.  (zfbcp.c, zfdecode.c, zfilter.c, zfilter2.c,
9918 
zfilterx.c, zfzlib.c)
9919 
	- If the current color space was Indexed, Separation using the
9920 
alternative space, or DeviceN using the alternative space,
9921 
currentgray/cmykcolor/hsbcolor/rgbcolor returned 0 rather than the
9922 
underlying color.  (This was a correction to the Red Book in the 3010
9923 
Language Supplement, Section D.2.4 and D.2.5.)  (gscolor.c, gscolor1.c,
9924 
gxcspace.h)
9925 
 
9926 
Implements some additional LanguageLevel 3 stream facilities:
9927 
	- CloseSource and CloseTarget (parsing only).  (ilevel.h, zfilter.c)
9928 
	- Dictionary argument for SubFileDecode.  (zfilter.c)
9929 
	- UnitSize (fully implemented) and LowBitFirst (parsing only) for
9930 
	LZWDecode. (zfdecode.c)
9931 
	- ReusableStreamDecode (incomplete).  (gs_ll3.ps, zfreuse.c)
9932 
 
9933 
Removes all remaining uses of _ds and _ss.  (bfont.h, errors.h, files.h,
9934 
icie.h, idict.h, idparam.h, ifunc.h, iscan.h, iutil2.h, opdef.h; iccfont.c,
9935 
idict.c, idparam.c, igc.c, iinit.c, iparam.c, iscan.c, iscannum.c, iutil2.c,
9936 
zcid.c, zcie.c, zdevice2.c, zfdecode.c, zfile.c, zfileio.c, zfont0.c,
9937 
zfont2.c, zfont42.c, zfunc.c, zht2.c, zusparam.c)
9938 
 
9939 
Removes the use of gs_if_debug_c.  (zvmem2.c)
9940 
 
9941 
Updates clients for the change in color space num_components.  (zcolor2.c,
9942 
zcsindex.c, zcssepr.c, zpcolor.c)
9943 
 
9944 
Changes the stack manager so it can ensure an unused margin above the top
9945 
element.  This is needed for a possible change in the operator API.
9946 
(istack.h, istack.c)
9947 
 
9948 
Decouples the definition of the interpreter instance from the definition of
9949 
the exported procedures that use it, so that we can use it in more places
9950 
internally.  (iminst.h, main.h)
9951 
 
9952 
Removes all initialization of static per-context state.  (iinit.c, iscan.c,
9953 
zmath.c)
9954 
 
9955 
Makes the freeing of VM spaces entirely dependent on the number of contexts
9956 
referencing them, removing the special handling of interpreter termination.
9957 
(icontext.h, gsalloc.c, icontext.c, inouparm.c, interp.c, zcontext.c,
9958 
zusparam.c)  ****** IN PROGRESS ******
9959 
 
9960 
Enables printing of time and memory usage even in non-DEBUG systems, for
9961 
benchmarking.  (imain.c)
9962 
 
9963 
Adds a .forceundef operator to parallel .forceput.  (gs_init.ps, zdict.c)
9964 
 
9965 
Rewrites the Form caching code to use the Pattern cache.  (gs_fform.ps)
9966 
 
9967 
Removes all uses of far_data.  (imain.c, imainarg.c, iname.c, opdef.h)
9968 
 
9969 
Moves responsibility for null page devices from C code to PostScript code.
9970 
(gs_setpd.ps, igstate.h, zdevice2.c, zgstate.c)
9971 
 
9972 
Changes the context scheduler to not store or reload the state when
9973 
switching from a context to the same context.  (zcontext.c)
9974 
 
9975 
Moves .registerencoding from C code to PostScript code.  (gs_init.ps,
9976 
zfont2.c)
9977 
 
9978 
Splits off inames.h (API for names and the name table) from iname.h (API for
9979 
the interpreter's name table); renames the_nt as the_gs_name_table, and
9980 
moves it to imain.c.  We would like to rename iname.h as names.h, but there
9981 
are too many places that include it.  (igc.h, iname.h, inamedef.h, inames.h,
9982 
imain.h, idict.c, idstack.c, igc.c, iname.c, interp.c, isave.c)
9983 
 
9984 
Splits off iestack.h and iostack.h from estack.h and ostack.h, as was done
9985 
for [i]dstack.h in 5.23.  (estack.h, iestack.h, iostack.h, ostack.h,
9986 
interp.c)
9987 
 
9988 
Splits off the hit detection device from the user path code, moving it to
9989 
the library level where it belongs.  (zupath.c)
9990 
 
9991 
Updates the interpreter for the changes in the enum_ptrs, reloc_ptrs, and
9992 
clear_marks memory management procedures.  (igc.c, igcref.c, ilocate.c,
9993 
zcontext.c)
9994 
 
9995 
Removes all uses of 'near' from the interpreter: if short and long calls
9996 
have different formats, we rely on the compiler to generate the most
9997 
efficient one.  (iccfont.c, imainarg.c, iparam.c, zdevice2.c, zdouble.c,
9998 
zdps.c, zgstate.c, zmatrix.c, zpath.c, zpath1.c, zrelbit.c, ztype.c)
9999 
 
10000 
Makes a couple of minor changes to support the change in
10001 
gs_param_list_common.  (iparam.h, iparam.c)
10002 
 
10003 
Changes internaldict to an operator, and executive and findencoding to
10004 
procedures, in order to satisfy the Genoa FTS.  (gs_dps.ps, gs_init.ps,
10005 
gs_res.ps)
10006 
 
10007 
Updates clients for the addition of device reference counting.  (zpcolor.c,
10008 
zupath.c)
10009 
 
10010 
Replaces all remaining uses of do { ... } while (0) with BEGIN ... END.
10011 
(istruct.h, opcheck.h)
10012 
 
10013 
Adds a debugging operator for printing out a Type 1 font.  (zfont1.c)
10014 
 
10015 
Updates the Type 1 font operators for the change in the procedure structure.
10016 
(zchar1.c, zfont1.c)
10017 
 
10018 
Updates one client for the change in the gs_show_enum structure.  (zchar.c)
10019 
 
10020 
Removes an obsolete "hook" put in for a customer.  (zchar.c)
10021 
 
10022 
Removes the BigStringEncode filter, which was only used by a former
10023 
customer.  (zfilter.c)
10024 
 
10025 
</pre><h3><a name="V5.24_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
10026 
 
10027 
Fixes bugs:
10028 
	- Images defined in non-Device color spaces were broken.
10029 
(pdf_draw.ps)
10030 
 
10031 
Removes some vestiges of the old pdf2ps.  (pdf_draw.ps, pdf_main.ps)
10032 
 
10033 
Adds some leftover PDF 1.2 features:
10034 
 
10035 
	- F, FFilter, and FDecodeParms keys in stream dictionaries.
10036 
	(pdf_base.ps)
10037 
 
10038 
	- Functions, including predefined spot functions.  (pdf_draw.ps)
10039 
 
10040 
	- Name trees.  (pdf_base.ps)
10041 
 
10042 
Adds some PDF 1.3 features.  Note that these require a fair amount of
10043 
PostScript LanguageLevel 3 support.  Note also that none of these have been
10044 
tested yet, because we don't have any source of test files.
10045 
 
10046 
	- DeviceN and (stubbed) ICCBased color spaces.  (pdf_draw.ps,
10047 
	pdf_ops.ps)
10048 
 
10049 
	- Additional extended graphics state parameters.  (pdf_draw.ps)
10050 
 
10051 
	- Number trees.  (pdf_base.ps)
10052 
 
10053 
	- Masked images.  (pdf_draw.ps)
10054 
 
10055 
Works around a bug in pdfTeX, which can generate Encoding vectors containing
10056 
nulls.  (pdf_font.ps)
10057 
 
10058 
</pre><h3><a name="V5.24_Streams"></a>Streams</h3><pre>
10059 
 
10060 
Fixes bugs:
10061 
	- A needed #include of memory_.h was missing.  (sdeparam.c)
10062 
	- The needed input buffer size for the RunLengthEncode filter was
10063 
128, but should be 129.  (srle.c)
10064 
	- The ASCII85Encode and ASCIIHexEncode filters sometimes didn't
10065 
insert \n characters often enough.  (sfilter2.c, sstring.c)
10066 
	- In one obscure boundary case, the CCITTFaxEncode filter with K =
10067 
-1 could emit an extra, incorrect code.  (scfe.c)
10068 
	- The CCITTFaxDecode filter didn't default DamagedRowsBeforeError to
10069 
0.  (scfx.h)
10070 
 
10071 
Removes all remaining uses of _ds and _ss.  (sfilter.h, sbcp.c, scfe.c,
10072 
seexec.c, sfilter1.c, sstring.c)
10073 
 
10074 
Removes the use of do_debug.  (scfd.c)
10075 
 
10076 
Removes all uses of far_data.  (scf.h, scfdgen.c, scfdtab.c, scfetab.c,
10077 
sjpegerr.c)
10078 
 
10079 
Removes the save_count member of streams, which is now no longer needed.
10080 
(stream.h)
10081 
 
10082 
To help in debugging, changes all uses of
10083 
	#define ss ((stream_xxx_state *)st)
10084 
to
10085 
	stream_xxx_state * const ss = (stream_xxx_state *)st;
10086 
(sbcp.c, sbhc.c, sbwbs.c, scfd.c, scfe.c, sdctc.c, sdctd.c, sdcte.c,
10087 
seexec.c, sfilter1.c, sfilter2.c, sfxfd.c, sfxstdio.c, siscale.c, slzwc.c,
10088 
slzwce.c, slzwd.c, smtf.c, spdiff.c, spngp.c, srld.c, srle.c, sstring.c,
10089 
szlibc.c, szlibd.c, szlibe.c)
10090 
 
10091 
Changes all groups of statistic-gathering variables to be structure
10092 
variables named stats_*.  (scfe.c)
10093 
 
10094 
Rewrites the CCITTFaxEncode filter to cut down one particularly large and
10095 
obnoxious macro, and to simplify the code by allocating an output buffer as
10096 
well as an input buffer.  (scf.h, scfdgen.c, scfe.c, scfetab.c)
10097 
 
10098 
</pre><h3><a name="V5.24_Library"></a>Library</h3><pre>
10099 
 
10100 
Fixes bugs:
10101 
	- The masked image clipper sequenced through mask rows incorrectly.
10102 
(gxclipm.c)
10103 
	- gx_[c]path_init_local_shared were declared as returning void, but
10104 
could actually return an error.  (gxpath.h, gxcpath.c, gxpath.c)
10105 
	- As always, gcc failed to report some static/non-static
10106 
inconsistencies.  However, to my dismay, I find that the ANSI C standard
10107 
allows these, so I'll have to stop complaining about them.  (gxclimag.c,
10108 
gxclipm.c)
10109 
	- As always, gcc failed to report some signed/unsigned char *
10110 
mismatches.  (gdevpdfi.c, gsparam.c)
10111 
	- A loop counted on a non-existent zero value to mark the end of the
10112 
IODevice table.  (gsiodev.c)
10113 
	- Some needed #includes of memory_.h were missing.  (gdevddrw.c,
10114 
gscolor2.c, gscrdp.c, gscspace.c, gxclipm.c, gximage3.c, gxshade4.c)
10115 
	- Pattern device colors didn't have access to the original halftone
10116 
phase, making it impossible to handle non-standard X/YStep correctly.
10117 
(gsdcolor.h, gspcolor.c)
10118 
	- Pattern filling disregarded the phase.  THIS MAY UNDO A FIX MADE
10119 
IN 5.02.  WE NEED TO RE-TEST PATTERNS CAREFULLY.  (gxp1fill.c)
10120 
	- restore did some unnecessary gsaves.  (gsstate.h, gsstate.c)
10121 
	- The reference counting macros could read from an object after
10122 
freeing it.  (gsrefct.h)
10123 
	- setgstate and currentgstate freed the view clipping path, which
10124 
they shouldn't do.  (gsstate.c)
10125 
	- If no view clipping path was set, viewclippath returned the entire
10126 
extent of the device, not the imageable area.  (gxpath.h, gsdps.c, gspath.c)
10127 
	- Assigning one stack-allocated path to another incorrectly wound up
10128 
sharing their segments.  (gxcpath.c, gxpath.c)
10129 
	- dot_length_absolute was incorrectly declared as float rather than
10130 
bool.  (gxline.h)
10131 
	- The test for varying-depth banded images was incorrect, causing
10132 
varying-depth images to be treated as constant-depth.  (This only affected
10133 
ImageType 3 images.)  (gxclimag.c)
10134 
	- Failure to clamp Y values when processing banded images could
10135 
cause crashes or invalid band list data.  (gxclimag.c)
10136 
	- The changes in gsparam.c introduced in 5.23 made the coercion of
10137 
int arrays to float arrays fail.  (gsparam.h, gsparam.c)
10138 
	- Interpolated banded images could be transmitted incompletely,
10139 
causing narrow stripes to be chopped out of their rendering.  (gxclimag.c)
10140 
	- FunctionType 0 functions with 32-bit samples didn't read their
10141 
data correctly.  (gsfunc0.c)
10142 
	- Lattice-form Shadings with packed coordinates could crash or
10143 
produce incorrect results.  (gxshade.c)
10144 
	- Lattice-form Shadings with packed coordinates always returned an
10145 
error.  (gxshade4.c)
10146 
	- If the PaintProc of a Pattern or a Form, or a CharString
10147 
procedure, or a similar callback copied the current graphics state with
10148 
gstate or currentgstate, a dangling reference to the device could result.
10149 
Fixing this required adding a reference count to devices: internally created
10150 
devices initialize it to 0, externally visible devices initialize it to 1.
10151 
THIS IS A DELICATE CHANGE AND WILL PROBABLY HAVE A BUG TAIL.  (gsdevice.h,
10152 
gxdevcli.h, gxdevice.h, gdevmem.c, gdevmrop.c, gdevnfwd.c, gschar.c,
10153 
gsdevice.c, gsmemory.c, gspaint.c, gsstate.c, gxacpath.c, gxccman.c,
10154 
gxclip.c, gxmclip.c, gxpcmap.c)
10155 
	- The return_if_error macro referred to code rather than code_.
10156 
(gserror.h)
10157 
	- Non-monotonic halftones didn't allocate enough slots in the
10158 
halftone cache.  (gxht.c)
10159 
	- setpagedevice with a 0-size page didn't fail.  Fixing this
10160 
required making the nullpage device provide explicit InputAttributes.
10161 
(gdevnfwd.c)
10162 
	- Halftone angles were often slightly off.  (gshtscr.c)
10163 
	- Banded fill_mask operations (used for characters) were sometimes
10164 
broken.  This bug was obviously introduced since 5.10; I'm surprised that it
10165 
didn't have more serious effects.  (gxclread.c)
10166 
	- Partially transparent patterns didn't work with non-default
10167 
RasterOp values.  (gxp1fill.c)
10168 
	- The default implementation of strip_copy_rop didn't handle color
10169 
space conversion properly.  (gdevmrop.c)
10170 
	- Hint replacement could cause the initial moveto and final
10171 
closepath of a Type 1 outline to differ, confusing the filling code.
10172 
(gxhint3.c)
10173 
	- Interpolated images were truncated at the bottom.  (bug probably
10174 
introduced in 5.23) (gxiscale.c)
10175 
	- Using an unsigned type for the index passed to enum_ptrs
10176 
procedures caused comparisons against signed values to be incorrect.
10177 
(gsstruct.h)
10178 
 
10179 
Rewrites the rectangle list and mask clipping algorithms to use callback
10180 
procedures rather than macros.  The rectangle list source code grew by 20%,
10181 
but the compiled code shrank from 10K to less than 4K; the mask clip source
10182 
code and compiled code both shrank.  (gxclip.h, gxmclip.h, gxclip.c,
10183 
gxclip2.c, gxclipm.c, gxcpath.c)
10184 
 
10185 
Removes all remaining uses of _ds and _ss.  (gsmemory.h, gsstruct.h, gzht.h,
10186 
stdpre.h, gp_dosfb.c, gsbitops.c, gscie.c, gsht.c, gstype1.c, gstype2.c,
10187 
gxclpath.c, gxclread.c, gxcmap.c, gxfill.c, gxi12bit.c, gxop1.h, gxpflat.c,
10188 
gxstroke.c, gxtype1.c)
10189 
 
10190 
Changes some GC procedures from explicit code to standard macros.
10191 
(gsstruct.h, gscscie.c, gxcht.c)
10192 
 
10193 
For easier debugging, changes gs_debug_c to a procedure; removes
10194 
gs_if_debug_c and do_debug.  (gdebug.h, gsht1.c, gsmisc.c, gspaint.c,
10195 
gxcht.c, gxht.c, gxpcmap.c)
10196 
 
10197 
Changes the num_components member of the color space structure to a
10198 
procedure, which is needed because DeviceN color spaces have a variable
10199 
number of components; also makes Pattern spaces return -1 - the correct
10200 
num_components instead of -1.  This is a NON-BACKWARD-COMPATIBLE CHANGE.
10201 
Also adds a base_space procedure.  (gxcspace.h, gscdevn.c, gscolor1.c,
10202 
gscolor2.c, gscpixel.c, gscscie.c, gscsepr.c, gscspace.c, gspcolor.c,
10203 
gxiinit.c, gxiscale.c)
10204 
 
10205 
Changes all groups of statistic-gathering variables to be structure
10206 
variables named stats_*.  (gxclip.c, gxclist.c, gxclpath.c, gxfill.c,
10207 
gxifast.c)
10208 
 
10209 
Starts to pull apart gs_makebitmap/pixmappattern to remove the dependency on
10210 
masked images.  (gspcolor.c)
10211 
 
10212 
Splits the C heap allocator from generic allocator support.  (gsmemory.c,
10213 
gsmalloc.c)
10214 
 
10215 
Removes all uses of far_data other than references to device (but not
10216 
device2) prototypes.  (gdevmem.h, gdevmrop.h, gxdevcli.h, gconf.c,
10217 
gdevabuf.c, gdevht.c, gdevm*.c, gdevmpla.c, gdevmrop.c, gdevnfwd.c,
10218 
gsbittab.c, gsflip.c, gsroptab.c, gxcht.c)
10219 
 
10220 
Adds a streams member to gs_ref_memory_t.  The library doesn't use this, but
10221 
it greatly simplifies the interpreter's bookkeeping.  (gsalloc.h, gxalloc.h,
10222 
gsalloc.c)
10223 
 
10224 
Adds some more opaque types to the graphics state structure, rather than
10225 
using naked struct types.  (gsccolor.h, gzstate.h)
10226 
 
10227 
Introduces the notion of the "effective clip path" in a graphics state.
10228 
Painting operators should now call gx_effective_clip_path rather than using
10229 
the clip_path member directly.  (gxpath.h, gschar.c, gsdps1.c, gsimage.c,
10230 
gspaint.c, gspath.c, gxccache.c, gxpaint.c)
10231 
 
10232 
Implements view clipping.  (gzstate.h, gspath.c, gsstate.c)
10233 
 
10234 
Starts to pare down the fit_* macros in gxdevice.h, since some people feel
10235 
strongly they are hard to follow, and also adds BEGIN/END wrapping.
10236 
(gxdevice.h, gdevabuf.c, gdevmem.c, gxclpath.c)
10237 
 
10238 
Refactors the structure definition macros in anticipation of moving to a
10239 
more table-driven approach.  Replaces ENUM_CALL, ENUM_RETURN_CALL, and
10240 
RELOC_CALL with ENUM_USING and RELOC_USING.  (gsstruct.h, gdevmem.c,
10241 
gshtscr.c, gxcpath.c, gxiinit.c)
10242 
 
10243 
Sketches a table-driven rather than procedural representation for GC
10244 
descriptors.  We believe this will improve readability, reduce code size,
10245 
and perhaps reduce cache thrashing during garbage collection.  This requires
10246 
a NON-BACKWARD-COMPATIBLE CHANGE to the enum_ptrs, reloc_ptrs, and
10247 
clear_marks procedures (to add the structure descriptor as a parameter).
10248 
This should not affect any ordinary clients, because they should already
10249 
define these procedures using the macros in gsstruct.h, which *are*
10250 
backward-compatible; however, they do affect two internal clients that use
10251 
their own type tags with unions (color spaces and device colors).
10252 
(gsstrtab.h, gsstruct.h, gsalloc.c, gsstrtab.c)
10253 
 
10254 
Updates color spaces for the change in enum_ptrs and reloc_ptrs.
10255 
(gxcspace.h, gscdevn.c, gscolor1.c, gscolor2.c, gscpixel.c, gscscie.c,
10256 
gscsepr.c, gscspace.c, gspcolor.c)
10257 
 
10258 
Updates device colors for the change in enum_ptrs and reloc_ptrs.
10259 
(gsdcolor.h, gxdcolor.h, gxpcolor.h, gspcolor.c, gxcht.c, gxcmap.c,
10260 
gxdcolor.c, gxht.c, gxp1fill.c)
10261 
 
10262 
Implements a hit detection device at the library level.  (gserrors.h,
10263 
gdevhit.c)
10264 
 
10265 
Changes some configuration parameters from #defines to statics.  (gschar.c)
10266 
 
10267 
Changes "simple" structures so they no longer have 0 for the enum_ptrs or
10268 
reloc_ptrs procedure.  This is a NON-BACKWARD-COMPATIBLE CHANGE for
10269 
structure-definers that don't use the macros in gsstruct.h (of which there
10270 
shouldn't be any).  (gsstruct.h, gsalloc.c)
10271 
 
10272 
Adds the structure type name to the debugging printout for freeing objects.
10273 
(gsalloc.c)
10274 
 
10275 
To help in debugging, changes all uses of
10276 
	#define ss ((stream_xxx_state *)st)
10277 
to
10278 
	stream_xxx_state * const ss = (stream_xxx_state *)st;
10279 
(gxclread.c)
10280 
 
10281 
Removes all uses of 'near' from the library: if short and long calls have
10282 
different formats, we rely on the compiler to generate the most efficient
10283 
one.  (gscie.c, gscoord.c, gsimpath.c, gsstate.c, gstype2.c, gxclpath.c,
10284 
gxclread.c, gxfill.c, gxhint1.c, gxhint2.c, gxhint3.c, gxstroke.c)
10285 
 
10286 
Adds 'inline' to stdpre.h, defined as the empty string on compilers other
10287 
than the ones we know accept it.  (stdpre.h)
10288 
 
10289 
Adds printout of the subrectangle to ImageType 1 tracing.  (gxiinit.c)
10290 
 
10291 
Replaces a few uses of gs_memory_default with dev-&gt;memory.  (gdevdbit.c,
10292 
gxclread.c)
10293 
 
10294 
Improves support for halftone objects not associated with graphics states.
10295 
This involves a minor change to the definitions of gs_spot_halftone and
10296 
gs_threshold_halftone, to define the transfer function as a closure.  This
10297 
is slightly NON-BACKWARD-COMPATIBLE in that it requires clients to set
10298 
transfer_closure.proc to 0 if they also set transfer to 0.  NOTE: the API
10299 
defined in gshtx.h is subject to future change.  (gscsepnm.h, gshtx.h,
10300 
gxdht.h, gxfmap.h, gxht.h, gxtmap.h, gscolor.c, gsht.c, gsht1.c, gshtx.c)
10301 
 
10302 
Changes the Bezier approximation of arcs to cut arcs at absolute multiples
10303 
of 90 degrees rather than at intervals of 90 degrees (e.g., an arc from 45
10304 
to 105 would now be cut at 90 rather than being treated as a single
10305 
60-degree curve) in order to produce more uniform output and also to ensure
10306 
that the bounding box for arcs is more accurate (to pacify the Genoa FTS).
10307 
(gxfarith.h, gsmisc.c, gspath1.c)
10308 
 
10309 
Replaces all remaining uses of do { ... } while (0) with BEGIN ... END.
10310 
(gsbitops.h, gsdsrc.h, gserror.h, gsmdebug.h, gsrect.h, gxcldev.h, gxfunc.h,
10311 
gxop1.h, gxtype1.h, gsalphac.c, gsshade.c, gstype2.c, gstype42.c,
10312 
gxclread.c, gxcpath.c, gximage4.c, gxpath.c)
10313 
 
10314 
Adds a user-defined halftone type, to support non-monotonic halftones.  We
10315 
could make any of the following structures fully object-oriented:
10316 
	- Halftones (client level)
10317 
	- Halftone orders (device level, but not rendered)
10318 
	- Device halftones (device level, fully rendered)
10319 
The right place to do this for non-monotonic halftones, which are specified
10320 
directly by bit masks, is at the device halftone level.  However, there are
10321 
too many places that know too much about the implementation of device
10322 
halftones and halftone orders right now.  WE NEED TO REVISIT THIS AFTER THE
10323 
5.1x CODE BRANCH IS TERMINATED.  SHOULD ALSO CONVERT UNION TO TYPED UNION
10324 
FOR GC -- CODE IS DUPLICATED IN gsht.c VS gshtx.c.  (gxdht.h, gxht.h,
10325 
gxhttype.h, gshtx.h, gsht.c, gsht1.c, gshtx.c)
10326 
 
10327 
Moves the procedures in Type 1 font data into a structure.  This is a
10328 
NON-BACKWARD-COMPATIBLE CHANGE, but an internal one.  (gxfont1.h, gstype1.c,
10329 
gstype2.c, gxtype1.c)
10330 
 
10331 
Extends Type 1 / 2 / 4 fonts to require that they be able to enumerate the
10332 
set of glyphs that they define, to allow writing them out.  We may propagate
10333 
this to all base fonts in the future.  (gxfont1.h)
10334 
 
10335 
Provides some utilities for devices that want to define their own
10336 
InputAttributes and OutputAttributes.  (gdevprn.h, gxdevice.h, gdevprn.c,
10337 
gsdparam.c)
10338 
 
10339 
Removes all of the text-display procedures that took null-terminated C
10340 
strings as operands.  This is NON-BACKWARD-COMPATIBLE.  However, since the
10341 
memory manager required that all such operands be allocated using
10342 
gs_alloc_string, the procedures were never usable with arbitrary C strings
10343 
anyway.  (gschar.h, gschar.c)
10344 
 
10345 
Renames the gx_device procedure record from std_procs to procs, in
10346 
anticipation of more unified support for "objects".  This is a
10347 
NON-BACKWARD-COMPATIBLE CHANGE for a surprisingly large number of clients
10348 
that should have been using dev_proc and set_dev_proc.  (gdevbbox.h,
10349 
gxdevcli.h, gxdevice.h, gdevdflt.c, gdevdgbr.c, gdevmem.c, gdevprn.c,
10350 
gsalphac.c, gsdevice.c, gsropc.c, gxccache.c, gxifast.c)
10351 
 
10352 
Disallows setting of the RasterOp-related graphics state parameters when
10353 
a cache device is active.  (gsrop.c)
10354 
 
10355 
Changes the tracing printout of path segments to provide enough accuracy to
10356 
cover all the fraction bits of a 'fixed'.  (gxpath.c)
10357 
 
10358 
</pre>
10359 
 
10360 
<hr>
10361 
 
10362 
<h2><a name="Version5.23"></a>Version 5.23 (limited) (5/14/98)</h2>
10363 
 
10364 
<p>
10365 
This fileset adds a number of PostScript LanguageLevel 3 features: library
10366 
support for ImageType 3 and 4 (masked) images, PostScript-level support for
10367 
ImageType 4, and the shfill operator for smooth shading.  It also adds RCS
10368 
Id lines to all the files we maintain.  It also changes the Unix makefiles
10369 
so that they create debugging or profiling binaries in separate directories.
10370 
 
10371 
<p>
10372 
This fileset includes an unusually large number of non-backward-compatible
10373 
API changes.  Most of them don't affect ordinary library clients, but a few
10374 
do.  These changes, and a few more to come, result from the next (large)
10375 
increment in our ongoing project to make the code completely re-entrant (no
10376 
non-idempotent writable globals in our own code).  This necessarily involves
10377 
putting some things that used to be global into structures, some of which
10378 
must be added to some interfaces.
10379 
 
10380 
<p>
10381 
NOTE: because of a combination of hardware problems, time pressure, and
10382 
belated discovery of sloppiness by the original developers of the PC
10383 
makefiles, none of the PC makefiles in this fileset work.  The Borland
10384 
makefiles probably come the closest.
10385 
 
10386 
<h3><a name="V5.23_Documentation"></a>Documentation</h3><pre>
10387 
 
10388 
Adds documentation for:
10389 
	- The changes in begin_image and related facilities.  (drivers.txt)
10390 
	- The addition of -Z/.  (use.txt)
10391 
	- The new ps2ps utility.  (ps2ps.1)
10392 
	- The new get_hardware_params procedure.  (drivers.txt)
10393 
	- The new -B&lt;size&gt; / -B- switch.  (use.txt).
10394 
 
10395 
Improves the documentation for the sample_ macros.  (gsbitops.h)
10396 
 
10397 
Adds some documentation on how the debugging/tracing flags work.  (gdebug.h)
10398 
 
10399 
Improves the documentation of DDAs.  (gxdda.h)
10400 
 
10401 
Documents a subtle change in the meaning of a flag in the PDF
10402 
FontDescriptor.  (pdf_font.ps)
10403 
 
10404 
Changes the location of the authoritative site for zlib sources.  (zlib.mak)
10405 
 
10406 
Corrects a typo.  (gsht1.h)
10407 
 
10408 
Removes pdf_2ps.ps from the fileset.  (psfiles.txt)
10409 
 
10410 
Adds standard file name comments to all .c and .h files that didn't already
10411 
have them.  (dodebug.h, gdev3b1.c, gdev8510.c, gdevadmp.c, gdevhl7x.c,
10412 
gdevimgn.c, gdevo182.c, gdevpdfx.h, gdevpe.c gdevsco.c, gdevsj48.c,
10413 
gdevvglb.c, gsalpha.c, gscolor1.c, gscsepr.h, gsdsc.c, scfetab.c string_.h,
10414 
zfunc3.c, zmedia2.c)
10415 
 
10416 
Unifies the nroff styles of the various man pages a bit.  (*.1)
10417 
 
10418 
Adds a reference to the CTAN mirror sites.  (new-user.txt)
10419 
 
10420 
Notes that the result of rect_intersect may be anomalous.  (gsrect.h)
10421 
 
10422 
Improves the documentation for the Distiller parameter handling code.
10423 
(gdevpdfp.c, gdevpsdp.c)
10424 
 
10425 
Corrects an ambiguity in the definition of the int_keys argument of
10426 
param_begin_xmit_dict.  (gsparam.h)
10427 
 
10428 
Adds a new file that will evolve into a reasonable guide to the source code.
10429 
(README, source.txt)
10430 
 
10431 
Adds the convention for 'status' and 'code' to the C style guide.
10432 
(c-style.txt)
10433 
 
10434 
Improves the documentation for the '-' pseudo-switch.  (use.txt)
10435 
 
10436 
Updates the problem reporting form to include the URL for known post-release
10437 
problems.  (bug-form.txt)
10438 
 
10439 
Documents the availability of sources and binaries for Plan 9.
10440 
(new-user.txt)
10441 
 
10442 
</pre><h3><a name="V5.23_Procedures"></a>Procedures</h3><pre>
10443 
 
10444 
Fixes bugs:
10445 
	- The 'tags' target in the Unix makefiles had an incorrect directory
10446 
name.  (bug probably introduced since 5.20)  (unix-end.mak)
10447 
	- The ld_tr and CCFLAGS macros were used in the makefiles before
10448 
they were defined, causing problems with `make' implementations that
10449 
substitute macros into definitions at definition time rather than at use
10450 
time.  (*.mak)
10451 
	- Recent Digital Unix versions (4.0 and later) require -std1 when
10452 
compiling.  (make.txt)
10453 
	- The Unix library-only makefile had gotten out of date.
10454 
(ugcclib.mak)
10455 
	- pf2afm[.bat] were omitted from the fileset.  (master/package.tcl)
10456 
	- The Borland makefile didn't work, because the Borland compiler
10457 
requires specifying the output file name (-o) before the input file name
10458 
(-c)!  This required changing the order of every compilation command in
10459 
every platform-independent makefile.  The win*.mak files still need work.
10460 
(*.mak)
10461 
	- None of the non-Unix makefiles specified directory names for the
10462 
auxiliary programs.  (dvx-tail.mak, os2.mak, wctail.mak, winlib.mak)
10463 
	- The Windows makefiles lacked build rules for gp_ntfs and gp_win32.
10464 
(msvclib.mak, winlib.mak)
10465 
 
10466 
Adds a new debugging switch -Z/ that prints the file name and line number on
10467 
all trace messages.  (gdebug.h, std.h)
10468 
 
10469 
Changes the Unix 'pg' and 'debug' build targets so that they create the
10470 
binaries in a 'pgobj' or 'debugobj' subdirectory of the standard build
10471 
directory.  This allows keeping all 3 configurations active.  (unix-end.mak)
10472 
 
10473 
Adds GEN directories for jpeg, libpng, and zlib.  (devs.mak, gs.mak,
10474 
jpeg.mak, lib.mak, libpng.mak, zlib.mak)
10475 
 
10476 
Adds a gendev.c that will eventually replace genconf.c.  (gendev.c, *.mak)
10477 
 
10478 
Adds -Wcast-align to the gcc compilation switches.  (unix-gcc.mak)
10479 
 
10480 
Adds support for libpng 1.0.1.  (libpng.mak)
10481 
 
10482 
Notes the use of -R on Solaris and other SVR4 systems.  (unix*.mak)
10483 
 
10484 
Removes pdf_2ps.ps from the fileset.  (int.mak, unixinst.mak,
10485 
pdf_2ps.ps[deleted])
10486 
 
10487 
Ensures that every file that is copyright, maintained, and distributed by
10488 
Aladdin Enterprises has a RCS Id line.  In .c and .h files, these lines
10489 
currently are only comments, but they could be converted easily to static
10490 
strings later if we want to.  We had to touch almost every file in the
10491 
fileset to do this, but we did *not* change the write dates.  (*)
10492 
 
10493 
Makes the build procedure auto-detect whether the installed version of gcc
10494 
has the 'const' code generation bug.  (gs.mak, lib.mak, unix-gcc.mak)
10495 
 
10496 
Removes 'makefile' as a precondition for ccf32.tr.  (I can't quite figure
10497 
out why it was there in the first place.)  (msvccom.mak)
10498 
 
10499 
Replaces the -F&lt;file&gt; switch with a -B&lt;buffer size&gt; switch that forces all
10500 
files to use the run_string interfaces.  -B- turns it off.  (iminst.h,
10501 
imainarg.c)
10502 
 
10503 
Adds a new resource to genconf.c, -replace &lt;module&gt;.  This causes &lt;module&gt;
10504 
*not* to be included if the module with the -replace resource *is* included.
10505 
If two modules -replace each other, either directly or indirectly through
10506 
-includes, the result is undefined.  (genconf.c)
10507 
 
10508 
Uses -replace to implement a default roplib package.  (lib.mak)
10509 
 
10510 
</pre><h3><a name="V5.23_Utilities"></a>Utilities</h3><pre>
10511 
 
10512 
Fixes bugs:
10513 
	- unprot.ps stopped working because of the stricter prohibition
10514 
against storing local-VM objects into systemdict.  (unprot.ps)
10515 
 
10516 
Adds a new ps2ps utility, like pdf2ps, that "distills" PostScript.
10517 
(ps2ps, ps2ps.bat)
10518 
 
10519 
Modifies the ps2epsi utility so it can be run outside the ps2epsi script for
10520 
testing.  (ps2epsi.ps)
10521 
 
10522 
Changes the pdf2ps utility to use the pswrite device.  This gets rid of all
10523 
conversion problems, at the expense of larger and stupider output files.
10524 
(pdf2ps, pdf2ps.bat)
10525 
 
10526 
</pre><h3><a name="V5.23_Drivers"></a>Drivers</h3><pre>
10527 
 
10528 
Fixes bugs:
10529 
	- Two procedures were declared 'private' inconsistently (thank you
10530 
again, gcc).  (gdevps.c)
10531 
	- The author of the uniprint driver sent a fix for an
10532 
allocation-related bug and an off-by-one bug.  (gdevupd.c)
10533 
	- The PDF writer incorrectly converted open stroked rectangles (only
10534 
3 sides drawn) to closed (4 sides drawn).  (gxpath.h, gzpath.h, gdevpdfd.c,
10535 
gxpath2.c)
10536 
	- When banding, filling a character within the PaintProc of a
10537 
Pattern could produce memory access errors.  (The problem was in
10538 
gx_forward_fill_mask, which might affect filling characters in other
10539 
situations as well.)  (gdevnfwd.c)
10540 
	- The [e]pswrite driver produced incorrect line widths for stroked
10541 
graphics.  (gdevps.c)
10542 
	- The [e]pswrite driver didn't invoke colorimage correctly, so
10543 
didn't handle Patterns right.  (gdevps.c)
10544 
	- Vector devices didn't set the color before writing trapezoids,
10545 
possibly causing incorrectly colored output.  (gdevvec.c)
10546 
	- Vector devices could give errors on Pattern fills.  (gdevvec.c)
10547 
	- The bbox device retained a pointer to the clipping path, which,
10548 
since the path was embedded in the gs_state_contents, confused the garbage
10549 
collector, causing memory access errors.  We fixed this by de-embedding the
10550 
path object: see below.  (gsstate.c)
10551 
	- On some Linux systems, the X driver could get a memory access
10552 
error when displaying patterns.  We fixed this by adding calls on XInitImage
10553 
in the necessary places when running X11R6.  (gdevx.c)
10554 
	- PDF output didn't check names for unusual characters, and could
10555 
produce invalid output if the input included names with those characters.
10556 
(gdevpdfx.h, gdevpdf.c, gdevpdfm.c, gdevpdfo.c)
10557 
	- In the PDF writer, DEST pdfmarks with /Dest but no /Page or /View
10558 
didn't generate named destinations.  (gdevpdfm.c)
10559 
	- Printer devices didn't allow . in %-formats in the output file
10560 
name.  (gdevprn.c)
10561 
	- The x11cmyk driver didn't read bits back from the screen
10562 
correctly.  (gdevxalt.c)
10563 
	- The pcxmono and pcxgray drivers used colored rather than
10564 
gray-scale palettes.  (gdevpcx.c)
10565 
	- The PCX drivers could emit repetition counts greater than 15,
10566 
confusing some readers.  (gdevpcx.c)
10567 
 
10568 
Removes some vestiges of the obsolete draw_line driver procedure.  We also
10569 
rename the draw_line member of the driver procedure structure as
10570 
obsolete_draw_line, so that any uses of it will cause compilation errors,
10571 
but we don't remove it from the structure, so that existing driver procedure
10572 
vectors will continue to compile (although the draw_line procedure will
10573 
never be called).  (gxdevcli.h, gdevbbox.c, gdevddrw.c, gdevdflt.c)
10574 
 
10575 
To repair a design error, and at the same time add flexibility needed for
10576 
ImageType 3:
10577 
 
10578 
	- Removes the image_data and end_image driver procedures,
10579 
associating them with the gx_image_enum(_common)_t structure instead.
10580 
Clients should call gx_device_image_data and gx_device_end_image instead: we
10581 
set the image_data and end_image procedures in the device structures to
10582 
these procedures when filling in defaulted procedures.  This is a
10583 
NON-BACKWARD-COMPATIBLE CHANGE for drivers that implement begin_image, since
10584 
they now have to fill the procedures into the enumerator structure.
10585 
(gsiparm*.h, gxdevcli.h, gxdevice.h, gxiparam.h, gdevbbox.c, gdevddrw.c,
10586 
gdevdflt.c, gdevnfwd.c, gsimage.c, gxclist.c, gxidata.c, gxifast.c,
10587 
gxiinit.c, gximage3.c, gximage4.c)
10588 
 
10589 
	- Replaces the image_data driver procedure with a plane_data
10590 
procedure (now associated with the image enumerator, not the device) that
10591 
allows specifying the X offset and raster independently for each plane, and
10592 
(depending on the image type) may allow omitting some planes.  We provide a
10593 
gx_device_image_plane_data procedure parallel to _image_data and _end_image
10594 
(see above).  (gsiparm*.h, gxdevcli.h, gxiparam.h, gdevbbox.c, gdevddrw.c,
10595 
gxidata.c, gxiinit.c, gximage3.c, gximage4.c)
10596 
 
10597 
Updates clients for image processing changes.  (gdevvec.h, gdevpdf.c,
10598 
gdevpdfi.c, gdevps.c, gdevpx.c, gdevvec.c)
10599 
 
10600 
Enhances [e]pswrite to detect other kinds of opportunities for producing
10601 
smaller output.  This involves a change in the moveto procedure in the
10602 
'vector' interface.  (gdevps.c)
10603 
 
10604 
Changes the bbox device so that it automatically detects whether it is being
10605 
used as a component in a device pipeline or as a free-standing device,
10606 
rather than having to select this in the makefile.  (lib.mak, gdevbbox.h,
10607 
gdevbbox.c)
10608 
 
10609 
Moves the halftoning driver a bit closer to real usability.  (gdevht.h,
10610 
gdevht.c)
10611 
 
10612 
Adds some tracing to the color mapping code in the X driver.  (gdevx.c)
10613 
 
10614 
Implements setting the Dict and ACSDict parameters for pswrite and pdfwrite.
10615 
Dict is effective with the CCITTFaxEncode filter for black-and-white images;
10616 
otherwise, these parameters still don't do anything.  (gdevpdfi.c,
10617 
gdevpsdp.c) ****** READING HUFFMAN TABLES IS NYI, SEE sdcparam.c; SETTING
10618 
DOESN'T WORK BECAUSE DCT_set_defaults DOESN'T DO WHAT IT SHOULD ******
10619 
 
10620 
Updates the PS/PDF writers to reflect the fact that the ASCIIHexEncode
10621 
filter now has a state.  (gdevpsdf.c)
10622 
 
10623 
Modifies the X driver so that it can draw multiple platform characters at a
10624 
time rather than one character per call.  (gdevx.h, gdevx.c, gdevxxf.c)
10625 
 
10626 
Takes advantage of the filter stream procedures now available in stream.c.
10627 
(gdevjpeg.c, gdevpdf.c, gdevpsdf.c)
10628 
 
10629 
Adds a get_hardware_params procedure, similar to get_params except that it
10630 
reads parameters whose values depend on hardware state that may change
10631 
without program intervention (e.g., panel switches).  The default is that
10632 
there are no hardware parameters.  (gdevmem.h, gdevprn.h, gsdevice.h,
10633 
gxdevcli.h, gxdevice.h, gxacpath.c, gxclip2.c, gxclipm.c, gxclist.c,
10634 
gxcpath.c, gdevbbox.c, gdevdflt.c, gdevht.c, gdevmrop.c, gdevnfwd.c,
10635 
gdevprn.c, gsdparam.c)
10636 
 
10637 
Updates the PS/PDF writer for the change in the parameter list API.
10638 
(gdevpsdf.c)
10639 
 
10640 
Makes a few more writable statics const.  (gdevos2p.c, gdevpipe.c,
10641 
gdevpsim.c, gdevx.c)
10642 
 
10643 
Removes the rrgb sample device, since it now no longer serves any purpose.
10644 
(gdevrrgb.c[deleted])
10645 
 
10646 
Converts some additional devices to -dev2, to make them const.  (devs.mak,
10647 
gdevbit.c, gdevpbm.c, gdevpcx.c, gdevpsim.c, gdevpng.c, gdevtfax.c,
10648 
gdevtfnx.c, gdevx.c, gdevxalt.c)
10649 
 
10650 
Updates a client accessing the preallocated color spaces.  (gdevpsdi.c)
10651 
 
10652 
Renames the debugging-related statics in the X driver as X_SOMETHING.
10653 
(gdevx.c)
10654 
 
10655 
</pre><h3><a name="V5.23_Platforms"></a>Platforms</h3><pre>
10656 
 
10657 
Makes a few minor changes to support Plan 9.  (make.txt, devs.mak, stat_.h,
10658 
stdio_.h, time_.h, gdevpbm.c)
10659 
 
10660 
</pre><h3><a name="V5.23_Fonts"></a>Fonts</h3><pre>
10661 
 
10662 
Documents the availability of a free Chinese font.  (fonts.txt,
10663 
new-user.txt)
10664 
 
10665 
Works around a bug in the Adobe PostScript driver.  We though it just output
10666 
the FontBBox for Type 42 fonts in the 2048- or 4096-unit character space
10667 
rather than a 1-unit space, but in fact it outputs garbage.  (zfont42.c,
10668 
gstype42.c)
10669 
 
10670 
Augments the handling of Type 42 fonts to recognize the gdir /
10671 
GlyphDirectory method of outline definition in addition to the loca / glyf
10672 
method, per Adobe versions 2015 and later (undocumented!).  (ifont.h,
10673 
zfont42.c)
10674 
 
10675 
</pre><h3><a name="V5.23_Interpreter"></a>Interpreter</h3><pre>
10676 
 
10677 
Fixes bugs:
10678 
	- Memory management for argument strings was wrong.  (gsargs.h,
10679 
gsargs.c)
10680 
	- 1 .setlanguagelevel was broken, because it didn't allow for the
10681 
possibility that values could get deleted from systemdict that existed in
10682 
level2dict.  (bug introduced in 5.x, x &lt;= 10) (zmisc2.c)
10683 
	- -dFAKEFONTS was broken.  (gs_fonts.ps, gs_init.ps)
10684 
	- copyscanlines was broken.  (bug introduced in 5.20) (gs_init.ps)
10685 
	- The matrix returned by sizeimage was incorrect.  (zdpnext.c)
10686 
	- The implementation of .buildpattern for PatternType 2 was wrong.
10687 
(gs_ll3.ps)
10688 
	- Ghostscript couldn't load TrueType fonts where the amount of data
10689 
either before or after the glyf section exceeds 64K.  (gs_ttf.ps) ****** WE
10690 
BACKED OUT THIS CHANGE, BECAUSE WE HAD TO BACK OUT THE NEXT ONE. ******
10691 
	- Ghostscript couldn't load TrueType fonts where the total data is
10692 
more than 64K and the offset or length of the glyfs is odd.  (gs_ttf.ps)
10693 
****** WE BACKED OUT THIS CHANGE: IT BROKE THE PDF INTERPRETER, BECAUSE IT
10694 
IMPOSES A NEW REQUIREMENT THAT TTF FILES BE POSITIONABLE. ******
10695 
	- Some compilers complained about arithmetic on enums.  (interp.c)
10696 
	- The CIE color space and CRD GC structure definitions were in the
10697 
interpreter rather than the library.  (zcie.c, zcrd.c)
10698 
	- NullFont was still present in FontDirectory when currentglobal was
10699 
false.  (gs_init.ps)
10700 
	- execform failed with Form resources, because it tried to insert
10701 
the Implementation in a read-only dictionary.  (gs_fform.ps, gs_lev2.ps)
10702 
 
10703 
Finishes implementing ImageType 4 images, and moves closer to implementing
10704 
ImageType 3.  (iimage.h, zdps.c, zimage.c, zimage2.c, zimage3.c)
10705 
 
10706 
Updates tracing output to use the new dlprintf macros.  (idict.c, igc.c,
10707 
igcref.c, igcstr.c, iname.c, interp.c, isave.c, iscan.c, zcie.c, zcontext.c)
10708 
 
10709 
Implements multiproc=true for readimage.  (gs_dpnxt.ps)
10710 
 
10711 
Does a bit more work on implementing shading with PatternType 2.
10712 
(gs_ll3.ps, zfunc.c, zshade.c)
10713 
 
10714 
Adds a .bitadd operator for adding integers modulo the word size.
10715 
(zarith.c)
10716 
 
10717 
Updates filter operators to use the new stream parameter facility.
10718 
(iparam.h, iparam.c, zfdecode.c, zfdctc.c[deleted], zfdctd.c, zfdcte.c)
10719 
 
10720 
Updates the implementation of parameter lists for the change from _dict to
10721 
_collection.  (iparam.c, iparam.h)
10722 
 
10723 
Takes advantage of the filter stream procedures now available in stream.c.
10724 
(zfilter.c)
10725 
 
10726 
Adds get_hardware_params to one device procedure vector.  (zupath.c)
10727 
 
10728 
Adds .gethardwareparams to parallel .getdeviceparams.  (zdevice.c)
10729 
 
10730 
Updates the interpreter's parameter list machinery to match the change in
10731 
gsparam.h.  (iparam.h, iparam.c)
10732 
 
10733 
Makes more writable statics const.  (gs_init.ps, btoken.h, dstack.h, iref.h,
10734 
opextern.h, icontext.c, idict.c, igc.c, igcref.c, iinit.c, imainarg.c,
10735 
interp.c, iscanbin.c, iutil.c, zbseq.c, zcie.c, zcontrol.c, zdevcal.c,
10736 
zdevice2.c, zdps.c, zdps1.c, zfont2.c, zgeneric.c, zgstate.c, ziodev.c,
10737 
ziodev2.c, ztype.c)
10738 
 
10739 
Removes an inappropriate reference to PROGRAM_NAME.  (imainarg.c)
10740 
 
10741 
Removes set/currentrenderalgorithm, since they are useless for the purpose
10742 
for which they were intended.  (zrop.c)
10743 
 
10744 
Uncomments code for CIEBasedDEF[G] color spaces, even though these aren't
10745 
fully implemented yet.  (zcie.c)
10746 
 
10747 
Reimplements StartJobPassword and SystemParamsPassword as no-access strings
10748 
in systemdict.  (gs_lev2.ps, iutil2.h, iutil2.c, ziodev2.c, zusparam.c)
10749 
 
10750 
Splits off the context state record from icontext.h, so that places that
10751 
only need access to state variables don't need to import the
10752 
procedures. (icontext.h, icstate.h)
10753 
 
10754 
Updates a client for the change in gs_malloc_limit.  (imainarg.c)
10755 
 
10756 
Updates clients for the change in the accessors for predefined color spaces.
10757 
(zcolor1.c, zimage.c, zimage2.c)
10758 
 
10759 
Renames the (few) debugging-related statics as I_SOMETHING.  (igc.c)
10760 
 
10761 
Splits off idstack.h (API for dictionary stacks) from dstack.h (API for the
10762 
interpreter's dictionary stack), and idstack.c (dictionary stack
10763 
implementation) from idict.c (dictionary implementation).  We should have
10764 
done this a long time ago!  (dstack.h, idictdef.h, idstack.h, idict.c,
10765 
idstack.c, iinit.c, ireclaim.c)
10766 
 
10767 
Folds the cached currentfile pointer into the exec-stack structure.
10768 
(estack.h, interp.c)
10769 
 
10770 
Changes clients of gs_register_*_root to eliminate statically allocated
10771 
roots.  (iinit.c, iname.c, interp.c, zbseq.c, zcontext.c, zfile.c, zfont.c,
10772 
zfont2.c, zgstate.c, ziodev.c)
10773 
 
10774 
Adds a ref_free_stack procedure, and reformats the implementation of stacks.
10775 
(istack.h, interp.c, istack.c)
10776 
 
10777 
</pre><h3><a name="V5.23_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
10778 
 
10779 
Fixes bugs:
10780 
	- Pattern colors sometimes caused errors.  (gs_pdf.ps)
10781 
	- A file ending with %%EOF without an EOL caused an error.
10782 
(pdf_main.ps)
10783 
	- Fl wasn't recognized as an abbreviation for FlateDecode in in-line
10784 
images.  (pdf_draw.ps)
10785 
 
10786 
Removes all code related to converting PDF to PS: it never worked reliably,
10787 
and we now support this function with the pswrite device instead.
10788 
(gs_pdf.ps =&gt; pdf_ops.ps, pdf*.ps)
10789 
 
10790 
</pre><h3><a name="V5.23_Streams"></a>Streams</h3><pre>
10791 
 
10792 
Updates tracing output to use the new dlprintf macros.  (shc.h, scfd.c,
10793 
scfe.c, shcgen.c)
10794 
 
10795 
Provides the ability to read and set stream initial parameters to/from a
10796 
parameter list.  This is currently needed only by the PDF/PS writers and the
10797 
filter operator, so it is implemented in modules separate from the stream
10798 
implementation per se, but it might be useful for other clients too.
10799 
(scommon.h, scfparam.c, sdcparam.c, sdct*.c, sdeparam.c, sddparam.c,
10800 
gdevpsfp.c[deleted])
10801 
 
10802 
Changes the ASCII85Encode filter so it never produces two %% at the
10803 
beginning of a line, which could mislead document managers or spoolers.
10804 
(sfilter2.c)
10805 
 
10806 
Changes the ASCIIHexEncode filter so it always produces lines of exactly 64
10807 
characters, except for the last one.  THIS IS A NON-BACKWARD-COMPATIBLE
10808 
CHANGE, because this filter now needs a state structure, which it didn't
10809 
before.  (sstring.h, sstring.c)
10810 
 
10811 
Moves filter_{read,write}_procs to stream.c, changing the names to
10812 
s_filter_{read,write}_procs.  (stream.h, stream.c)
10813 
 
10814 
Makes creation of JPEG filters set default values for parameters that are
10815 
outside the IJG library (Picky and Relax).  (sdct.h, sjpegd.c, sjpege.c)
10816 
 
10817 
</pre><h3><a name="V5.23_Library"></a>Library</h3><pre>
10818 
 
10819 
Fixes bugs:
10820 
	- An error in dda_step_add could theoretically produce anomalies in
10821 
images (although we don't think we've ever seen any).  (gxdda.h)
10822 
	- A boundary error in dda_state_next/previous/advance could
10823 
theoretically produce anomalies in images by allowing R = 0 (although we
10824 
don't think we've ever seen any).  (gxdda.h)
10825 
	- A rounding error in computing the size of portrait images could
10826 
produce a spurious 1-pixel-wide line at the edge of the image.  (gxifast.c)
10827 
	- When banding, images with singular or nearly singular CTM or
10828 
ImageMatrix could confuse things badly enough to cause memory access errors.
10829 
(gxclimag.c)
10830 
	- Patterns were broken.  (bug introduced in 5.21) (gxclip2.c)
10831 
	- Because some image processing code retained a pointer to the
10832 
clipping path, which was embedded inside the gs_state_contents object,
10833 
garbage collection could cause crashes.  (The only case where we know this
10834 
happened was the bounding box device, since we think all other image
10835 
enumerators preconstruct a clipping device, which does not retain a pointer
10836 
to the clipping path, rather than constructing one from the path on the
10837 
fly.)  We fixed this by replacing gs_state_contents with individual objects:
10838 
see below.
10839 
	- The *_.h files didn't have double-inclusion protection.  (*_.h)
10840 
	- ImageType 2 images were broken by the change in begin_typed_image.
10841 
(gximage2.c)
10842 
	- Color-setting operators that "substitute the nearest legal value"
10843 
didn't substitute it in storage, only when using it.  E.g., after
10844 
gs_setgray(pgs, 2.0), gs_currentgray(pgs) returned 2.0 rather than 1.0.
10845 
This bug has been there since release 1.0!  (gxcspace.h, gscie.c, gscolor.c,
10846 
gscolor1.c, gscolor2.c, gscdevn.c, gscsepr.c, gscpixel.c, gspcolor.c)
10847 
	- The RasterOp implementation for 2-bit, 4-bit, and non-gray 8-bit
10848 
devices didn't work.  (gdevmrop.c)
10849 
	- The test of whether to use copy_mono, fill_mask, or general
10850 
imaging for rendering characters sometimes used copy_mono when not
10851 
appropriate.  (gxccache.c)
10852 
	- The default implementation of fill_mask produced solid rectangles,
10853 
rather than properly masked output, if the logical operation didn't use its
10854 
source operand.  (gdevdbit.c)
10855 
	- Some more files needed double inclusion protection.  (gscie.h)
10856 
	- Checking for interrupts before a return always returned 0 rather
10857 
than the correct return code if there was no interrupt.  (gsmisc.c)
10858 
	- Characters within Pattern PaintProcs sometimes didn't get drawn.
10859 
(gxpcmap.c)
10860 
	- The CIE color space and CRD GC structure definitions were in the
10861 
interpreter rather than the library.  (gscie.h, gscie.c)
10862 
	- Numeric overflows when setting up the character cache caused
10863 
errors rather than simply disabling caching for that character.  (gschar.c)
10864 
	- FORCE_STRIP_HALFTONES was accidentally left set to 1 (in 5.10!),
10865 
slowing down all uses of monobit halftones.  (gshtscr.c)
10866 
 
10867 
Implements mask clipping, which is needed for ImageType 3 images.
10868 
(gxclip2.h, gxclipm.h, gxmclip.h, gxclip2.c, gxclipm.c, gxmclip.c)
10869 
 
10870 
Finishes implementing ImageType 3 and 4 images.  (gsimage.h, gsiparam.h,
10871 
gsimage.c, gsiparm3.h, gximage3.c, gximage4.c)
10872 
 
10873 
Starts to update the banding code to handle ImageType 3 and 4 images.
10874 
(gxclist.h, gxiparam.h, gxclimag.c, gxclist.c, gxiinit.c)
10875 
 
10876 
Make eprintf_program_name, lprintf_file_{and_line,only}, and new
10877 
dlprintf_file_{and_line,only} always be procedures, rather than sometimes
10878 
macros and sometimes procedures.  (std.h, gdebug.h, gsmisc.c)
10879 
 
10880 
Adds new dlprintf, dlputc, and dlputs macros that are like
10881 
dprintf/dputc/dputs but also print the source file name and line number at
10882 
the beginning of the line if the -Z/ debugging switch is set.  The if_debug*
10883 
macros now use dlprintf rather than dprintf; many other places also needed
10884 
changing.  Note that if any place was overlooked, no great harm is done:
10885 
printout produced there simply won't include the source file and line number
10886 
even if -Z/ is set.  (std.h, gdebug.h, gsmisc.c; gdevbbox.c, gdevdbit.c,
10887 
gdevdgbr.c, gdevmrop.c, gdevrun.c, gdevsvga.c, gdevx.c, gp_unifs.c,
10888 
gsalloc.c, gschar.c, gscoord.c, gsfont.c, gshsb.c, gsht.c, gshtscr.c,
10889 
gsmemory.c, gspath.c, gstype1.c, gstype2.c, gxacpath.c, gxccache.c,
10890 
gxclimag.c, gxclist.c, gxclpath.c, gxclread.c, gxcpath.c, gxfill.c,
10891 
gxidata.c, gxpath.c, gxpcopy.c, gxpflat.c, gxstroke.c)
10892 
 
10893 
Simplifies storage management for graphics states by replacing
10894 
gs_state_contents with individual objects.  This slows down gsave and
10895 
grestore a bit, but eliminates a class of potential obscure bugs.
10896 
(gxpath.h, gzstate.h, gsstate.c, gxcpath.c, gxpath.c)
10897 
 
10898 
Adds some more information to the deubgging printout for paths.  (gxpath.c)
10899 
 
10900 
Modifies the library test program to test ImageType 3 and 4 images.
10901 
(ugcclib.mak, gslib.c)
10902 
 
10903 
Extends the @-file parser to be more shell-like:
10904 
 
10905 
	- The sequence \ &lt;newline&gt; is ignored everywhere.
10906 
 
10907 
	- If a # appears as the first character on a line outside quotes,
10908 
	the entire line	(including the terminating newline) is ignored.
10909 
 
10910 
(gsargs.h, gsargs.c)
10911 
 
10912 
Changes a stem hint tracing message so that it will print with the correct
10913 
line number.  (gxhint2.c)
10914 
 
10915 
Moves the 'format' information for images to the image parameter structure.
10916 
This entails a NON-BACKWARD-COMPATIBLE CHANGE in the begin_typed_image
10917 
driver procedure (which was not guaranteed stable).  (gsiparam.h,
10918 
gxdevcli.h, gsimage.c, gxiinit.c)
10919 
 
10920 
Adds an optional matrix argument to begin_typed_image, overriding the CTM in
10921 
the imager state if present.  This is needed to make masks and masked images
10922 
line up precisely; this too is a NON-BACKWARD-COMPATIBLE CHANGE.
10923 
(gxdevcli.h, gdevbbox.c, gdevddrw.c, gdevnfwd.c, gdevx.c, gxclimag.c,
10924 
gxiinit.c, gximage2.c, gximage3.c, gximage4.c)
10925 
 
10926 
Adds a procedure for testing monotonicity of Functions over a given range.
10927 
(gsfunc.h, gsfunc0.c, gsfunc3.c)
10928 
 
10929 
Implements smooth shading with shfill.  All documented ShadingTypes (1-7)
10930 
are implemented.  (gscspace.h, gsdsrc.h, gspath.h, gsshade.h, gxshade.h,
10931 
gxshade4.h, gscolor.c, gscolor3.c, gsdsrc.c, gsfunc0.c, gsfunc3.c,
10932 
gspath1.c, gsshade.c, gxshade.c, gxshade1.c, gxshade4.c, gxshade6.c)
10933 
 
10934 
Changes the TrueType rasterizer to remove the assumption that the entire
10935 
loca table is stored contiguously.  This may not have any practical effect,
10936 
since currently Type 42 fonts never split the loca table across segments.
10937 
(gstype42.c)
10938 
 
10939 
Adds a new interface for creating CIE CRDs that provides the parameters as
10940 
separate arguments.  (gscrd.h, gscrd.c)
10941 
 
10942 
Starts to add the ability for a device to provide one or more default CIE
10943 
CRDs as (read-only) device parameters.  (Not ready for use yet.)  (gscie.h,
10944 
gscrdp.h, gscie.c, gscrdp.c)
10945 
 
10946 
Adds a multiple-bit-per-pixel analogue of gs_makebitmappattern,
10947 
gs_makepixmappattern, for use by another Aladdin project.  (lib.mak,
10948 
gsbitmap.h, gsptype1.h, gxbitmap.h, gspcolor.c)
10949 
 
10950 
Changes the API of param_begin_write_dict so that the client can request the
10951 
creation of an array rather than a dictionary.  This is a
10952 
NON-BACKWARD-COMPATIBLE CHANGE for implementors (of which there are only
10953 
2.5), but not for clients.  (gsparam.h, gsparam.c)
10954 
 
10955 
Adds dynamically typed data to the parameter list interface, and removes the
10956 
statically typed procedures.  This isn't important for any standard facility
10957 
yet.  This too is a NON-BACKWARD-COMPATIBLE CHANGE for implementors of
10958 
parameter lists.  (gsparam.h, gsparams.h, gsparam.c, gsparams.c)
10959 
 
10960 
Adds a new platform-specific API for thread creation and synchronization,
10961 
and a memory manager "wrapper" that monitor-locks each call.  No code
10962 
normally included in this fileset uses any of this machinery as yet.  (gp.h,
10963 
gpsync.h, gxsync.h, gsmemlok.h, gsmemlok.c, gxsync.c)
10964 
 
10965 
Splits off (PatternType 1) Pattern filling into a separate file, since the
10966 
file was getting too big; refactors the filling code to use procedures
10967 
rather than macros.  (gxp1fill.h, gspcolor.c, gxp1fill.c)
10968 
 
10969 
Makes a few more writable statics const.  (gscie.h, gscscie.c, gsdll.c,
10970 
gsmemory.c, gsmisc.c, gstype1.c, gstype2.c, gxclpath.c)
10971 
 
10972 
Adds a compile-time option, SYSTEM_CONSTANTS_ARE_WRITABLE, to choose whether
10973 
the system configuration values (buildtime, copyright, product, revision,
10974 
revisiondate, serialnumber) are const or not.  By default they are now
10975 
const: THIS IS A NON-BACKWARD-COMPATIBLE CHANGE (affecting only one user).
10976 
(lib.mak, openvms.mak, os2.mak, unix-end.mak, wctail.mak, winlib.mak,
10977 
gscdefs.h, gscdef.c)
10978 
 
10979 
Removes the dependence of std.h on PROGRAM_NAME.  (std.h, gsdll.c, gsmisc.c,
10980 
gscdef.c)
10981 
 
10982 
Adds a new member of the color space type structure, the size of the
10983 
smallest color space structure that will hold a color space of the given
10984 
type.  Also removes the obsolete _ds modifier.  (gscspace.h, gxcspace.h,
10985 
gscdevn.c, gscie.c, gscolor.c, gscolor1.c, gscolor2.c, gscpixel.c,
10986 
gscsepr.c, gspcolor.c, gxiinit.c)
10987 
 
10988 
Removes set/currentrenderalgorithm, since they are useless for the purpose
10989 
for which they were intended.  (gsrop.h, gsropt.h, gdevmrop.c, gsrop.c)
10990 
 
10991 
Splits off gscspace.c from gscolor.c, and gscscie.c from gscie.c.  (gscie.c,
10992 
gscolor.c, gscscie.c, gscspace.c)
10993 
 
10994 
Adds constructor and accessor procedures for color spaces.  (gscie.h,
10995 
gscolor2.h, gscsepr.h, gscspace.h, gsptype1.h, gxcolor2.h, gxcspace.h,
10996 
gscolor.c, gscolor2.c, gscscie.c, gscsepr.c, gscspace.c, gslib.c,
10997 
gspcolor.c)
10998 
 
10999 
Changes the CIEBased color space structures slightly to allow implementation
11000 
of the CIEBasedDEF[G] color spaces.  (gscie.h, gscie.c)
11001 
 
11002 
Changes gs_malloc_limit from a static to a member of the allocator
11003 
structure.  This is a NON-BACKWARD-COMPATIBLE CHANGE for clients that
11004 
declared this variable as an extern.  (gsmalloc.h, gsmemory.c)
11005 
 
11006 
In order to eliminate some statics, changes the static color space accessors
11007 
(gs_color_space_Device*) so they require a const gx_imager_state as
11008 
parameter, and changes their names as well to avoid confusion.  This is a
11009 
NON-BACKWARD-COMPATIBLE CHANGE not only in these accessors, but also in
11010 
gs_image_t_init_{gray,color}.  This is very unfortunate, but we see no way
11011 
to avoid it.  (gscspace.h, gsiparam.h, gxistate.h, gscolor1.c, gscscie.c,
11012 
gscspace.c, gsimage.c, gspcolor.c, gsstate.c, gxclread.c, gxiinit.c,
11013 
gximage2.c, gximage3.c, gximage4.c)
11014 
 
11015 
Unifies the handling of const for the IODevice table.  (gscdefs.h,
11016 
gxiodev.h, gconf.c, gsiodev.c)
11017 
 
11018 
Changes the register_root memory manager call so that a NULL as the pointer
11019 
to the root structure asks the memory manager to allocate the root structure
11020 
itself.  This is a NON-BACKWARD-COMPATIBLE CHANGE for implementors of the
11021 
memory manager API (of which there are only 3).  (gsmemory.h, gsstruct.h,
11022 
gsalloc.c, gsmemory.c)
11023 
 
11024 
Adds a new GC structure type, suffix_add0_local, which is a more efficient
11025 
form of suffix_add0 that can be used when the supertype is defined in the
11026 
same file as the subtype.  (gsbitmap.h, gscie.h, gsshade.h, gsstruct.h)
11027 
 
11028 
Uses the new package replacement facility in the makefile to make RasterOp
11029 
optional without tinkering with statics at runtime.  (lib.mak, gxdevice.h,
11030 
gxdevrop.h, gdevdbit.c, gdevdflt.c, gdevmrop.c, gdevnfwd.c, gsnorop.c,
11031 
gsropc.c)
11032 
 
11033 
Makes RasterOp really optional.  (gdevmrop.h, gsrop.h, gdevmrop.c, gsrop.c,
11034 
gxiinit.c)
11035 
 
11036 
Rewrites bits_fill_rectangle to get rid of nearly all the macros.
11037 
(gxbitops.h, gsbitops.c)
11038 
 
11039 
Removes the obsolete _ds from gs_log_error.  (gserror.h, gsmisc.c)
11040 
 
11041 
</pre>
11042 
 
11043 
<hr>
11044 
 
11045 
<h2><a name="Version5.22"></a>Version 5.22 (limited) (2/19/98)</h2>
11046 
 
11047 
<p>
11048 
This fileset has a few more bug fixes, a major overhaul of memory management
11049 
for paths so that we can do view clipping in a reasonable way, and the
11050 
ability to build executables in a different directory from the sources.
11051 
 
11052 
<h3><a name="V5.22_Documentation"></a>Documentation</h3><pre>
11053 
 
11054 
Designates gv as the preferred VMS and Unix previewer.  (new-user.txt,
11055 
use.txt)
11056 
 
11057 
Adds a pointer to post-release documentation.  (README)
11058 
 
11059 
Notes that compilation with certain platforms and compilers must turn off
11060 
optimization.  (make.txt)
11061 
 
11062 
Improves the documentation of the fit_fill and fit_copy macros.
11063 
(gxdevice.h)
11064 
 
11065 
</pre><h3><a name="V5.22_Procedures"></a>Procedures</h3><pre>
11066 
 
11067 
Fixes bugs:
11068 
	- The ccgs script for non-ANSI compilers was no longer flexible
11069 
enough to handle all the possible command lines.  (ccgs)
11070 
	- The pdfwrite device was missing on the DesqView/X platform.
11071 
(dvx-gcc.mak)
11072 
	- The System V build procedure was broken.  (unixtail.mak)
11073 
	- A Watcom makefile lacked parentheses around a macro name.
11074 
(wctail.mak)
11075 
	- Some `make' programs drop trailing spaces in macro definitions: we
11076 
didn't work around this.  (os2.mak, unixhead.mak, winlib.mak)
11077 
 
11078 
Adds support for WCVERSION=11.0 in the Watcom makefiles.  (watc.mak,
11079 
wccommon.mak)
11080 
 
11081 
Adds a shell script for removing the 'includes' from makefiles, since a very
11082 
few Unix systems don't support this capability.  (catmake)
11083 
 
11084 
Changes -dNOPROMPT to -dNOPAGEPROMPT, and adds -dNOPROMPT to suppress both
11085 
the end-of-page prompt and the executive prompt.  (use.txt, gs_init.ps)
11086 
 
11087 
Adds definitions of {GL,PS}{SRC,GEN,OBJ}DIR to the top-level makefiles,
11088 
removing these definitions from gs.mak.  (*.mak, gs.mak)
11089 
 
11090 
Adds explicit directories to more makefile rules.  We can now do builds with
11091 
source, GL/PS generated files, and GL/PS object files in 5 different
11092 
directories!  (*.mak, gsjconf.h)
11093 
 
11094 
</pre><h3><a name="V5.22_Utilities"></a>Utilities</h3><pre>
11095 
 
11096 
Adds a user-contributed utility that runs dvips followed by ps2pdf.
11097 
(dvipdf, unixinst.mak)
11098 
 
11099 
</pre><h3><a name="V5.22_Drivers"></a>Drivers</h3><pre>
11100 
 
11101 
Fixes bugs:
11102 
	- A pointer was incorrectly declared const.  (gdevpdfm.c)
11103 
	- pdfwrite handled the Title element of ARTICLE pdfmarks
11104 
incorrectly.  (gdevpdfm.c)
11105 
	- pdfwrite inserted a Dest element in Link annotations even if an A
11106 
(Action) key was present.  (gdevpdfm.c)
11107 
	- pdfwrite didn't recognize and convert /Article actions in
11108 
pdfmarks.  (gdevpdfm.c)
11109 
 
11110 
Replaces some open-coded accesses to path structure elements with macros, in
11111 
anticipation of a representation change.  (gdevpdfd.c)
11112 
 
11113 
Moves pdfwrite further towards supporting Dict and ACSDict Distiller
11114 
parameters.  (gdevpsdf.h, gdevpsdp.c, gdevpsfp.c)
11115 
 
11116 
Updates a few places for the change in the path API.  (gdevpdfd.c,
11117 
gdevvec.c)
11118 
 
11119 
Adds recognition of named object references to the PDF writer, fixing many
11120 
bugs in the named object code in the process.  (gdevpdfx.h, gdevpdfm.c,
11121 
gdevpdfo.c)
11122 
 
11123 
Enhances pswrite to skip fills or strokes of completely empty paths, to
11124 
recognize horizontal and vertical lines, and to abbreviate color settings
11125 
based on 8-bit fractions.  This requires a NON-BACKWARD-COMPATIBLE CHANGE in
11126 
the "vector" device interface (which was, however, clearly identified as
11127 
subject to change without notice).  (gdevpsdf.h, gdevvec.h, gdevps.c,
11128 
gdevpsdf.c, gdevpx.c, gdevvec.c)
11129 
 
11130 
</pre><h3><a name="V5.22_Interpreter"></a>Interpreter</h3><pre>
11131 
 
11132 
Updates a few places for the change in the path API.  (zupath.c)
11133 
 
11134 
Implements %statementedit properly.  (iscan.h, iscan.c, ziodev.c)
11135 
 
11136 
Changes the initialization code so that if DELAYBIND is set, .forcedef and
11137 
.forceput remain accessible until .bindnow is called.  (gs_init.ps)
11138 
 
11139 
</pre><h3><a name="V5.22_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
11140 
 
11141 
Fixes bugs:
11142 
	- An empty Differences array, which Acrobat Distiller 3.02 can emit,
11143 
caused a rangecheck error.  (pdf_font.ps)
11144 
 
11145 
</pre><h3><a name="V5.22_Streams"></a>Streams</h3><pre>
11146 
 
11147 
Fixes bugs:
11148 
	- The alternative LZWEncode filter didn't emit a reset code as the
11149 
first code, and waited one code too long to emit a reset.  (slzwce.c)
11150 
 
11151 
Adds some double-inclusion protection.  (scfx.h)
11152 
 
11153 
</pre><h3><a name="V5.22_Library"></a>Library</h3><pre>
11154 
 
11155 
Fixes bugs:
11156 
	- There was an (incorrect) assignment to a read-only structure
11157 
member.  (gximage2.c)
11158 
	- A formal parameter list was incorrect if __PROTOTYPES__ wasn't
11159 
defined.  (gsroptab.c)
11160 
	- Some images didn't get clipped properly when banding.  This was a
11161 
fix for 5.03 that somehow didn't make it into 5.10.  (gxclimag.c)
11162 
	- When banding, dashed lines could cause an invalid memory access.
11163 
This was apparently caused by an error in a fix made in 5.04.  (gsline.c)
11164 
	- Images with non-zero data_x could cause an invalid memory access.
11165 
(gxiinit.c, gxidata.c)
11166 
	- The band list rasterizer didn't initialize the image structure
11167 
properly, causing control to go to a random address.  (gxclread.c)
11168 
 
11169 
Replaces some open-coded accesses to path structure elements with macros, in
11170 
anticipation of a representation change.  (gxpath.h, gzpath.h, gspath1.c,
11171 
gxfill.c, gxpath2.c, gxstroke.c)
11172 
 
11173 
Changes the path and clipping path structures so that segments and clipping
11174 
lists are stored in separate, reference-counted structures.  This finally
11175 
supports reliable freeing of path segments and clipping lists even in the
11176 
presence of off-stack gstates, and the ability to store the original
11177 
segments of a clipping path, both of which we have wanted for a long time.
11178 
Unfortunately, it requires SIGNIFICANT NON-BACKWARD-COMPATIBLE CHANGES TO
11179 
THE API FOR PATHS:
11180 
    Paths:
11181 
	- adds gx_path_alloc_contained;
11182 
	- gx_path_init =&gt; gx_path_init_local (or nothing);
11183 
	- gx_path_reset =&gt; gx_path_new;
11184 
	- removes gx_path_share and gx_path_release;
11185 
	- gx_path_assign =&gt; gx_path_assign_{preserve,release};
11186 
	- renames gx_path_expand_dashes =&gt; gx_path_add_dash_expansion,
11187 
	  gx_path_flatten[_accurate] =&gt; gx_path_add_flattened[_accurate],
11188 
	  gx_path_monotonize =&gt; gx_path_add_monotonized;
11189 
	- removes the init Boolean from gx_path_copy[_reversed].
11190 
    Clipping paths:
11191 
	- gx_cpath_init =&gt; gx_cpath_init_local (or nothing);
11192 
	- removes gx_cpath_share and gx_cpath_release_segments;
11193 
	- gx_cpath_path =&gt; gx_cpath_to_path;
11194 
	- removes the mem argument from gx_cpath_from_rectangle.
11195 
We believe that we either renamed or changed the argument list of every API
11196 
function that was affected in a non-backward-compatible way, so incompatible
11197 
clients will get either compilation or linking errors.  (gxpath.h,
11198 
gzcpath.h, gzpath.h, gschar.c, gsdps.c, gsdps1.c, gspaint.c, gspath.c,
11199 
gspath1.c, gsstate.c, gxacpath.c, gxccache.c, gxclpath.c, gxclread.c,
11200 
gxcpath.c, gxfill.c, gxpath.c, gxpath2.c, gxpcmap.c, gxpcopy.c, gxpdash.c,
11201 
gxstroke.c)
11202 
 
11203 
Reimplements view clipping bookkeeping to use reference-counted paths.
11204 
(gzstate.h, gsdps.c, gsstate.c)
11205 
 
11206 
Adds const in a couple more places.  (gxpath2.c)
11207 
 
11208 
If -Z? is enabled, makes the reference counting machinery check for
11209 
reference counts going negative.  (gsrefct.h)
11210 
 
11211 
Adds the first bit of code for rendering smooth shadings.  The code is
11212 
nowhere near usable.  (gsshade.h, gxshade.h, gsshade.c, gxshade.c)
11213 
 
11214 
Adds BEGIN ... END macros for creating compound statements that are
11215 
syntactically equivalent to single statements.  (stdpre.h)
11216 
 
11217 
</pre>
11218 
 
11219 
<hr>
11220 
 
11221 
<h2><a name="Version5.21"></a>Version 5.21 (limited) (1/19/98)</h2>
11222 
 
11223 
<p>
11224 
This is primarily a bug fix fileset for 5.20, with a little new
11225 
functionality (pdfwrite image downsampling and more complete pdfmark
11226 
processing).
11227 
 
11228 
<h3><a name="V5.21_Documentation"></a>Documentation</h3><pre>
11229 
 
11230 
Fixes bugs:
11231 
	- The build procedures still referred to tar_cat.  (make.txt)
11232 
 
11233 
Documents some user-developed patches for using certain kinds of Japanese
11234 
fonts with Ghostscript.  (new-user.txt)
11235 
 
11236 
Notes that on Solaris 2.x systems, it is probably not a good idea to use
11237 
Sun's fonts.  (use.txt)
11238 
 
11239 
Documents -dSTRICT.  (use.txt)
11240 
 
11241 
</pre><h3><a name="V5.21_Procedures"></a>Procedures</h3><pre>
11242 
 
11243 
Fixes bugs:
11244 
	- The definitions of MAKEFILE in several makefiles was incorrect.
11245 
(dvx-gcc.mak, unix-cc.mak, unixansi.mak)
11246 
	- The build rules for the gp_*.$(OBJ) files lacked a directory name,
11247 
confusing most 'make' programs.  (*.mak)
11248 
	- geninit didn't work, because the syntax of psfile_() entries in
11249 
gconfig.h had changed.  (geninit.c)
11250 
	- Some files were created and then deleted during building,
11251 
preventing [gnu]make -j from working.  (lib.mak, int.mak)
11252 
 
11253 
Adds an explicit directory name to more files in the makefiles.  (jpeg.mak,
11254 
lib.mak) Added in this fileset:
11255 
	.$(OBJ): jpeg.mak,  {dvx-tail,msvclib,openvms,os2,ugcclib,unixtail,
11256 
		watc,watclib,winint,winlib}.mak
11257 
	.dev:	jpeg.mak
11258 
 
11259 
Removes the default suppression of 'const' with gcc.  You must now compile
11260 
with gcc 2.7.2.1 or newer, or patch the makefile.  (ugcclib.mak,
11261 
unix-gcc.mak)
11262 
 
11263 
Removes -DPNG_USE_CONST from the command line for compiling libpng, since
11264 
this has never actually worked, and is handled in a different way starting
11265 
with libpng 0.97.  (gs.mak)
11266 
 
11267 
Adds a -dSTRICT switch that disables some Ghostscript extensions, to be more
11268 
helpful in debugging applications that produce output for Adobe and other
11269 
RIPs.  (gs_init.ps, gs_statd.ps)
11270 
 
11271 
</pre><h3><a name="V5.21_Drivers"></a>Drivers</h3><pre>
11272 
 
11273 
Fixes bugs:
11274 
	- Many occurrences of 'const' were missing or incorrect.
11275 
(gdevpdfd.c, gdevpdfi.c, gdevpdfo.c, gdevpdft.c)
11276 
	- pdfmark processing was broken by changes introduced in 5.20.
11277 
(gs_pdfwr.ps)
11278 
	- pdfwrite didn't convert /Color =&gt; /C or /Title =&gt; /T in ANN and
11279 
LNK pdfmarks.  (gdevpdfm.c)
11280 
	- pdfwrite didn't convert /Dest =&gt; /D or /File =&gt; /F in the Action
11281 
dictionary of ANN and LNK pdfmarks.  (gdevpdfm.c)
11282 
	- pdfwrite didn't convert a /Launch annotation to an Action with a
11283 
dictionary.  (gdevpdfm.c)
11284 
	- pdfwrite didn't convert \n in annotation Contents strings to \r.
11285 
(gdevpdfm.c)
11286 
	- jstrm.state was used before being set.  (gdevjpeg.c)
11287 
	- The SVGA devices were not identified as page devices.
11288 
(gdevsvga.c)
11289 
	- The SPARCPrinter driver returned the address of a local buffer
11290 
containing an error string.  (gdevsppr.c)
11291 
	- pdfwrite no longer compressed character bitmaps.  (bug introduced
11292 
in 5.20) (gdevpdfi.c)
11293 
	- pdfwrite didn't recognize _objdef syntax everywhere.  (gdevpdfx.h,
11294 
gdevpdfm.c, gdevpdfo.c)
11295 
	- pdfwrite didn't recognize and convert Launch and GoToR OUT
11296 
pdfmarks.  (gdevpdfm.c)
11297 
	- pdfwrite used a /Dest key rather than a /P key for the page number
11298 
in articles.  (gdevpdfx.h, gdevpdfm.c)
11299 
	- pdfwrite didn't save and write the /I dictionary for articles.
11300 
(gdevpdfx.h, gsstruct.h, gdevpdf.c, gdevpdfm.c)
11301 
 
11302 
Implements a parameter list "reader" that prints the parameter values on a
11303 
stream in PS/PDF syntax.  (We need something like this for printing filter
11304 
parameters.)  (gdevpsdf.h, gdevpdf.c, gdevpsdf.c)
11305 
 
11306 
Implements a write stream that just keeps track of the position.  We use
11307 
this to determine how much space to allocate for data we're going to save.
11308 
(gdevpsdf.h, gdevpsdf.c)
11309 
 
11310 
Implements image downsampling, but not anti-aliasing, for the PDF writer.
11311 
(gdevpsdf.h, gdevpsds.h, gdevpsdi.c, gdevpsds.c)
11312 
 
11313 
</pre><h3><a name="V5.21_Fonts"></a>Fonts</h3><pre>
11314 
 
11315 
Adds Frutiger to the built-in list of sans-serif fonts.  (gs_fonts.ps)
11316 
 
11317 
</pre><h3><a name="V5.21_Interpreter"></a>Interpreter</h3><pre>
11318 
 
11319 
Fixes bugs:
11320 
	- Many occurrences of 'const' were missing.  (gsargs.c, ialloc.c,
11321 
zdpnext.c, zfunc3.c, zshade.c)
11322 
	- Some byte * =&gt; char * casts were missing.  (imainarg.c)
11323 
	- The stack limit check in .eqproc was wrong.  (zmisc3.c)
11324 
	- The paper sizes a4small and lettersmall weren't implemented.
11325 
(gs_statd.ps)
11326 
	- setuserparams signalled errors on 64-bit systems.  (zusparam.c)
11327 
 
11328 
Changes .image2 to track the change in the library.  (zdps.c)
11329 
 
11330 
Some improvements were made to the (still not entirely functional) Type 32
11331 
font code.  (zchar32.c)
11332 
 
11333 
Updates some filters to use the new procedure for transmitting collections
11334 
of parameters.  (zfdecode.c)
11335 
 
11336 
Adds ISO paper sizes C0 through C6.  (gs_statd.ps)
11337 
 
11338 
Trims down the list of #includes in iconf.c.  (iconf.c)
11339 
 
11340 
</pre><h3><a name="V5.21_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
11341 
 
11342 
Fixes bugs:
11343 
	- CalGray color spaces with a Gamma value caused an error.
11344 
(gs_pdf.ps)
11345 
 
11346 
</pre><h3><a name="V5.21_Library"></a>Library</h3><pre>
11347 
 
11348 
Fixes bugs:
11349 
	- There was a 'const' conflict in the code for handling ImageType 2
11350 
images.  Fixing this properly required a small change in the ImageType 2
11351 
structure.  (gsiparm2.h, gximage2.c)
11352 
	- Many occurrences of 'const' were missing.  (gsfunc3.h, gstrap.h,
11353 
gxgetbit.h, gdevdgbr.c, gstrap.c, gxclist.c, gxclread.c)
11354 
	- A couple of enumerations had trailing commas.  (gsshade.h,
11355 
gxbitfmt.h)
11356 
	- The gcst parameter was omitted in the non-ANSI version of the
11357 
ENUM_PTRS_BEGIN_PROC macro.  (gsstruct.h)
11358 
	- gcc missed a private / non-private discrepancy.  (gxpcmap.c)
11359 
	- An uninitialized variable was used by mistake
11360 
(copy_params.options).  (gdevdgbr.c)
11361 
	- The last statement of a procedure was unreachable.  (gxclpath.c)
11362 
	- If a Type 2 font was transformed so that hints were not being
11363 
used, hintmask and cntrmask didn't compute the number of following bytes
11364 
correctly.  (gxtype1.h, gstype2.c, gxtype1.c)
11365 
 
11366 
Factors out some common code in gxclip2.c into macros.  (gxclip2.c)
11367 
 
11368 
Starts to reimplement RasterOp using the compositing framework.  (gsropc.h,
11369 
gxropc.h, gsropc.c)  ****** IN PROGRESS ******
11370 
 
11371 
Adds an equality-testing procedure for device colors.  This is used both for
11372 
color images (which previously did this adhoc) and for RasterOp compositing.
11373 
(gxdcolor.h, gximage.h, gxcht.c, gxdcolor.c, gxht.c, gspcolor.c)
11374 
 
11375 
Implements hintmask (but not cntrmask) for Type 2 CharString fonts.  I don't
11376 
know any reasonable way to test whether it's working, though.  (gxtype1.h,
11377 
gstype2.c, gxhint2.c, gxhint3.c, gxtype1.c)
11378 
 
11379 
Adds a more convenient interface for reading and setting sets of parameters.
11380 
(gsparam.h, gsparam.c)
11381 
 
11382 
Pulls the decision as to whether to halftone for a given device out into a
11383 
macro.  Eventually we will do something more sophisticated about this.
11384 
(gxdevice.h, gxclist.c, gxcmap.c)
11385 
 
11386 
Breaks apart a macro in anticipation of future usage.  (gsrefct.h)
11387 
 
11388 
</pre>
11389 
 
11390 
<hr>
11391 
 
11392 
<h2><a name="Version5.20"></a>Version 5.20 (limited) (1/8/98)</h2>
11393 
 
11394 
<p>
11395 
This fileset provides enough of the Display PostScript capabilities to start
11396 
running real programs.  It also adds the first few LanguageLevel 3 features
11397 
(none of which have been tested) and reorganizes the makefile structure
11398 
somewhat.  There are many internal changes since 5.10, some of them still in
11399 
progress, so we expect more problems than usual.
11400 
 
11401 
<p>
11402 
This fileset is being provided for testing in two different configurations:
11403 
a full release, and a DPS-only package.  The latter will be released with
11404 
the GPL when it is reasonably complete and reliable.
11405 
 
11406 
<h3><a name="V5.20_Documentation"></a>Documentation</h3><pre>
11407 
 
11408 
Fixes bugs:
11409 
	- TrueType fonts on GS_FONTPATH weren't recognized.  (use.txt)
11410 
	- The argument list for gstate was incorrect.  (zdevice2.c)
11411 
	- There were a couple of minor errors in the e-stack documentation.
11412 
(estack.h)
11413 
	- fonts.txt had several errors regarding compiled fonts.
11414 
(fonts.txt)
11415 
	- An out-of-date Aladdin address still appeared in documentation.
11416 
(new-user.txt)
11417 
 
11418 
Updates make.txt to reflect the changes in makefile structure.  (make.txt)
11419 
 
11420 
Notes the addition of -Z' and -Z".  (use.txt)
11421 
 
11422 
Documents the new begin_typed_image, get_bits_rectangle,
11423 
map_color_rgb_alpha, and create_compositor driver procedures.  (drivers.txt)
11424 
 
11425 
Moves documentation for all releases before 5.0 to history4.txt.  (NEWS,
11426 
history4.txt)
11427 
 
11428 
Documents the addition of SHARE_JPEGLIB.  (make.txt)
11429 
 
11430 
Removes the author's name and e-mail address from the ps2ascii man page, at
11431 
his request.  (ps2ascii.1)
11432 
 
11433 
Documents the addition of (some) image compression facilities to ps2pdf /
11434 
pdfwrite.  (ps2pdf.txt)
11435 
 
11436 
Documents the new -dNOINTERPOLATE and -F&lt;n&gt; switches.  (use.txt)
11437 
 
11438 
Adds documentation for a user-contributed port to the SMS/QDOS operating
11439 
system.  (new-user.txt)
11440 
 
11441 
Removes documentation for BGI, which is no longer supported.  (use.txt)
11442 
 
11443 
Documents the use of the Registry and the GS_DLL environment variable on
11444 
Windows platforms.  (install.txt)
11445 
 
11446 
</pre><h3><a name="V5.20_Procedures"></a>Procedures</h3><pre>
11447 
 
11448 
Fixes bugs:
11449 
	- The OpenVMS makefile referred to EXTEND_NAME rather than
11450 
EXTEND_NAMES.  (openvms.mak)
11451 
	- A typo caused a spurious error message from lpr.  (unix-lpr.sh)
11452 
	- The PDF writer didn't include a needed dependency on zlib
11453 
compression.  (devs.mak)
11454 
	- The rule for the OS/2 printer device was wrong.  (devs.mak)
11455 
	- The -migrate switch was incorrectly removed from the command line
11456 
for pre-4.0 Digital Unix.  (make.txt)
11457 
	- The -r switch was ignored with -dNODISPLAY.  (gs_init.ps)
11458 
 
11459 
Adds targets for Type 32 fonts (type32.dev) and PostScript LanguageLevel 3
11460 
(psl3.dev, psl3core.dev, psl3read.dev).  (gs.mak, int.mak, lib.mak)
11461 
 
11462 
Changes the documented feature names for PostScript Level 1 and 2
11463 
interpreters from level1/2 to psl1/2.  The old names are still recognized
11464 
for backward compatibility.  (gs.mak, int.mak, *.mak)
11465 
 
11466 
Removes support for building with DCL under VMS.  Building under VMS now
11467 
requires some version of make, preferably GNU make.  THIS IS A
11468 
NON-BACKWARD-COMPATIBLE CHANGE, but there was plenty of lead time for users
11469 
(it was announced in 5.01, 6/22/97).  (vms*.mak[deleted])
11470 
 
11471 
Starts to add an explicit directory name to every file in the makefiles, to
11472 
allow building multiple object versions (e.g., debug, profile, product) or
11473 
cross-building for multiple platforms in separate directories without any
11474 
makefile editing.  (*.mak) Done so far:
11475 
(done)	_h=	devs.mak gs.mak int.mak jpeg.mak lib.mak
11476 
(done)	.h	devs.mak gs.mak int.mak lib.mak zlib.mak
11477 
		openvms.mak os2.mak ugcclib.mak unix-end.mak
11478 
		unixtail.mak wctail.mak winint.mak winlib.mak
11479 
	.$(OBJ): devs.mak int.mak (except ccfonts)
11480 
		lib.mak (except special compilations)
11481 
		libpng.mak zlib.mak
11482 
	.dev:	libpng.mak zlib.mak
11483 
 
11484 
Gets rid of tar_cat.  Building on Unix platforms now requires that make
11485 
recognize the include directive.  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE:
11486 
rather than editing the *head.mak files, users should now edit the unix*.mak
11487 
or dvx*.mak files (which they previously were instructed NOT to do).  Aside
11488 
from this, we think the change won't actually affect anyone, since most Unix
11489 
make programs (include GNU make) do recognize this directive.  (*.mak,
11490 
ansihead.mak[deleted], cc-head.mak[deleted], gcc-head.mak[deleted],
11491 
dgc-head.mak[deleted], tar_*cat[deleted], dvx-gcc.mak, unixansi.mak,
11492 
unix-cc.mak, unix-gcc.mak)
11493 
 
11494 
Includes the basic context machinery in every PostScript interpreter
11495 
configuration.  (int.mak)
11496 
 
11497 
Removes the division between 'low-level' and 'high-level' band list
11498 
facilities: we once thought we might make the latter optional, but this no
11499 
longer seems useful.  (lib.mak)
11500 
 
11501 
Introduces a new category of devices, identified to genconf as -dev2 and
11502 
created with SETDEV2 and SETPDEV2.  For the moment, these are the same as
11503 
existing devices except that their static instance is const, but we plan to
11504 
make them quite different in the future: don't attempt to create any.
11505 
(devs.mak, gs.mak, genconf.c, gconf.c)
11506 
 
11507 
Removes the obsolete -includef resource from genconf.  (genconf.c)
11508 
 
11509 
Removes support for IJG JPEG library v5* from the makefile, since we no
11510 
longer support these library versions.  (jpeg.mak, lib.mak,
11511 
gsjerror.h[deleted], gsjpglib.h[deleted], gsjerror.c[deleted])
11512 
 
11513 
Makes the JPEG library use floating point if it is fast.  (gsjmorec.h)
11514 
 
11515 
Adds a SHARE_JPEG option to the makefiles, with the necessary warning about
11516 
possible incompatibilities.  (*.mak)
11517 
 
11518 
Replaces the CCC macro in the makefiles with CC_, the various CC* macros
11519 
with CC_* (except for CCA2K and CCAUX), and the O macro with O_; removes the
11520 
'begin' target and the CCBEGIN macro.  THIS IS A NON-BACKWARD-COMPATIBLE
11521 
CHANGE, required for the new arrangement of files into directories.  (*.mak)
11522 
 
11523 
Replaces all occurrences of -Idir1 -Idir2 ... -Idirn in platform-generic
11524 
makefiles with $(I_)dir1 $(II)dir2 ... $(_I)dirn, and defines these macros
11525 
in platform-specific makefiles, in order to accommodate OpenVMS command
11526 
syntax.  (*.mak)
11527 
 
11528 
Adds -fno-common to the default gcc compilation and linking switches, to
11529 
improve checking for doubly-defined externs.  (unix-gcc.mak)
11530 
 
11531 
Adds a -dNOINTERPOLATE switch to turn off image interpolation.  (gs_init.ps)
11532 
 
11533 
Adds a -F&lt;file&gt; switch that runs files through the run_string interface with
11534 
an 1-byte buffer.  (imainarg.c)
11535 
 
11536 
Allows specifying the name of the gconfig.h file with -DGCONFIG_H= in the
11537 
compilation command line, to support certain multi-configuration build
11538 
procedures.  (int.mak, lib.mak, gconf.h, gconf.c, gscdef.c, iconf.c)
11539 
 
11540 
Splits off the installation targets from unix-end.mak.  (unix-end.mak,
11541 
unixinst.mak, unix*.mak, ugcclib.mak)
11542 
 
11543 
</pre><h3><a name="V5.20_Utilities"></a>Utilities</h3><pre>
11544 
 
11545 
Fixes bugs:
11546 
	- A case label was misplaced.  (No effect on normal operation.)
11547 
(genconf.c)
11548 
	- ps2ascii had some Encoding-related problems, and a serious bug
11549 
causing the stack to grow indefinitely.  (ps2ascii.ps)
11550 
 
11551 
Adds a new font2pcl.ps utility, for converting outline fonts to bitmapped
11552 
PCL fonts.  (font2pcl.ps)
11553 
 
11554 
At the request of a user, modifies ansi2knr to read stdin if no input file
11555 
is supplied, and to accept an optional --filename switch to set the file
11556 
name in the #line directive.  Also makes ansi2knr write the usage message on
11557 
stderr rather than stdout.  (ansi2knr.c)
11558 
 
11559 
Adds a user-contributed Perl script that fixes compatibility problems
11560 
between MS Word output and Ghostview 1.5.  (fixmswrd.pl)
11561 
 
11562 
Adds a new test file that produces some pretty color output.  (vasarely.ps,
11563 
unix-end.mak)
11564 
 
11565 
Adds a user-contributed utility for producing AFM files from PFA/PFB and
11566 
optionally PFM files.  (pf2afm.bat, pf2afm.ps)
11567 
 
11568 
</pre><h3><a name="V5.20_Drivers"></a>Drivers</h3><pre>
11569 
 
11570 
Fixes bugs:
11571 
	- Some 'static' declarations were missing (gcc lossage).  (gdevht.c,
11572 
gdevmgr.c, gdevpcfb.c, gdevrrgb.c)
11573 
	- Some 'char *' should have been 'unsigned char *'.  (gdevccr.c)
11574 
	- The PDF writer represented non-rectangular clipping paths in a way
11575 
that could cause Acrobat to produce incorrect output.  (The fix relies on
11576 
the new clipping path enumeration facility.)  (gdevpdfd.c)
11577 
	- get_params for the X device didn't read the WINDOWID and
11578 
.IsPageDevice parameters.  (gdevx.c)
11579 
	- A superseded driver was still in the distribution.
11580 
(gdevnp6.c[deleted])
11581 
	- The PDF writer's default parameters didn't quite match the default
11582 
parameters of Adobe Acrobat(TM).  (gdevpsdf.h)
11583 
	- A cast from const byte * to const char * was omitted.
11584 
(gdevpdft.c)
11585 
	- x_map_color_rgb returned incorrect values for values in the dither
11586 
cube/ramp.  (gdevx.c)
11587 
 
11588 
Adds user-contributed drivers for:
11589 
	- the Brother HL 720/730 laser printer (gdevhl7x.c);
11590 
	- the Cirrus Logic CL-GD54xx SuperVGA chipset (in gdevsvga.c).
11591 
 
11592 
Adds stubs or dummy implementations for the new Acrobat Distiller 3.0
11593 
pdfmark features (BP/EP/SP, _objdef/OBJ, PUT/PUTINTERVAL/CLOSE).  Features
11594 
not yet implemented:
11595 
	- Predefining Catalog and DocInfo.
11596 
	- Writing out added Catalog and Info keys.
11597 
	- Special handling for Page#, Prev/This/NextPage.
11598 
	- Writing out added keys in Page objects.
11599 
	- Defining objects for ANN, DEST, LNK, PS.
11600 
	- Writing out added keys for ANN, BP, DEST, LNK, PS.
11601 
	- Adding information to streams (PUT, CLOSE).
11602 
	- Writing out streams.
11603 
(gs_pdfwr.ps, gdevpdfx.h, gdevpdf.c, gdevpdfi.c, gdevpdfm.c, gdevpdfo.c)
11604 
 
11605 
Removes the DoThumbnails distiller parameter, which Acrobat Distiller 3.0 no
11606 
longer supports.  (gs_pdfwr.ps, gdevpdfx.h, gdevpdf.c, gdevpdfp.c)
11607 
 
11608 
Starts to eliminate or segregate writable globals that point to
11609 
heap-allocated data, as in the interpreter (see below); specifically, makes
11610 
all device and xfont procedure structures const in devices that Aladdin
11611 
maintains.  Note that this involves a NON-BACKWARD-COMPATIBLE CHANGE in the
11612 
get_xfont_procs device procedure (to add const to the return type); this
11613 
only affects the 3 implementations of xfonts.  (gdevprn.h, gdevdjet.c,
11614 
gdevm1.c, gdevpccm.c, gdevpdf.c, gdevpdfm.c, gdevpdft.c, gdevps.c,
11615 
gdevpsdf.c, gdevpx.c; gxdevice.h, gxxfont.h, gdevbgi.c, gdevbit.c,
11616 
gdevbmp.c, gdevdflt.c, gdevdjet.c, gdevlj56.c, gdevmiff.c, gdevmsxf.c,
11617 
gdevnfwd.c, gdevpbm.c, gdevpcfb.c, gdevpdf.c, gdevpng.c, gdevprn.c,
11618 
gdevps.c, gdevpx.c, gdevs3ga.c, gdevsvga.c, gdevtfax.c, gdevtfnx.c,
11619 
gdevvglb.c, gdevwddb.c, gdevwdib.c, gdevwpr2.c, gdevwprn.c, gdevx.c,
11620 
gdevxalt.c, gdevxxf.c, gxccman.c)
11621 
 
11622 
Makes the statically allocated device templates const in some devices, using
11623 
the new -dev2 device resource type.  NOTE: the meaning of -dev2 is subject
11624 
to change without notice in future releases.  (gdevdjet.c, gdevpdf.c,
11625 
gdevps.c, gdevpx.c, gdevvglb.c)
11626 
 
11627 
Adds a new begin_typed_image driver procedure which is called for all types
11628 
of images, not just ImageType 1.  The default implementation calls
11629 
begin_image if the ImageType is 1.  (gdevmem.h, gdevprn.h, gsiparam.h,
11630 
gxdevice.h, gdevbbox.c, gdevdflt.c, gdevht.c, gdevmrop.c, gdevnfwd.c,
11631 
gxacpath.c, gxclimag.c, gxclip2.c, gxclist.c, gxcpath.c, gxpcmap.c)
11632 
 
11633 
Adds a new get_bits_rectangle driver procedure which allows reading back an
11634 
arbitrary rectangle of bits from the device, not just a single full scan
11635 
line.  The default implementation calls get_bits, being careful to avoid a
11636 
recursion loop; the default implementation of get_bits calls
11637 
get_bits_rectangle similarly.  This procedure has a lot of flexibility,
11638 
almost all of which is ultimately provided by the implementation in memory
11639 
devices.  (gdevmem.h, gsbitops.h, gxcindex.h, gxdevice.h, gdevbbox.c,
11640 
gdevdflt.c, gdevdgbr.c, gdevht.c, gdevm*.c, gdevmem.c, gdevmpla.c,
11641 
gdevnfwd.c, gxbitfmt.h, gxclip2.c, gxclist.c, gxclread.c, gxcpath.c,
11642 
gxgetbit.h)
11643 
 
11644 
Removes support for the BGI (Borland Graphics Interface) device, since we no
11645 
longer support the Borland compilers for MS-DOS.  (devs.mak, dvx-head.mak,
11646 
openvms.mak, unixhead.mak, gdevbgi.c[deleted])
11647 
 
11648 
Speeds up x_map_color_rgb by avoiding server access in most cases.
11649 
(gdevx.h, gdevx.c, gdevxini.c)
11650 
 
11651 
Implements get_bits_rectangle in the X driver in place of get_bits.
11652 
(gdevx.c, gdevxalt.c)
11653 
 
11654 
Implements begin_typed_image for ImageType 2 images in the X driver, as an
11655 
example of how a driver can implement this function itself.  (gdevx.c)
11656 
 
11657 
Adds a call on the DCTEncode set_defaults procedure, which is now required
11658 
(see under Streams below).  (gdevjpeg.c)
11659 
 
11660 
Implements a substantial part of the Distiller image compression machinery.
11661 
See ps2pdf.txt for details.  (gdevpdfx.h, gdevpsdf.h, gdevpdf.c, gdevpdfi.c,
11662 
gdevps.c, gdevpsdf.c, gdevpsdi.c, gdevpsdp.c, gdevpsds.c)
11663 
 
11664 
Adds a map_color_rgb_alpha driver procedure, complementing
11665 
map_rgb_alpha_color.  (gdevmem.h, gdevprn.h, gxdevice.h,
11666 
gdevbbox.c, gdevdflt.c, gdevht.c, gdevmrop.c, gdevnfwd.c, gdevprn.c,
11667 
gxclip2.c, gxclist.c, gxcmap.c, gxcpath.c)
11668 
 
11669 
Splits off gxdevcli.h (client definitions) from gxdevice.h, which had gotten
11670 
very large.  This doesn't do much good yet in terms of reducing dependencies
11671 
and compilation time, because every client still includes gxdevice.h, but
11672 
it's the raw material for doing so in the future.  (gxdevcli.h, gxdevice.h)
11673 
 
11674 
Adds alpha tracking to the command list.  (gxclpath.h, gxclimag.c,
11675 
gxclpath.c, gxclread.c)
11676 
 
11677 
Changes the 'show' pseudo-parameter for the PDF writer so that it takes
11678 
multiple additional parameters instead of a dictionary.  This greatly
11679 
reduces garbage collection overhead.  (gs_pdfwr.ps, gdevpdfx.h, gdevpdfp.c,
11680 
gdevpdft.c)
11681 
 
11682 
Adds a create_compositor driver call for handling compositing.  (gdevbbox.h,
11683 
gdevmem.h, gdevprn.h, gsdevice.h, gxdevcli.h, gxdevice.h, gdevbbox.c,
11684 
gdevdflt.c, gdevht.c, gdevnfwd.c, gsdevice.c, gxclimag.c, gxclip2.c,
11685 
gxclist.c, gxcpath.c, gxpcmap.c)
11686 
 
11687 
Updates drivers to account for the more careful handling of file name
11688 
length.  (gdevpdfx.h, gdevwprn.c)
11689 
 
11690 
Adds a user-contributed enhancement to make the Epson dot matrix driver work
11691 
at 180x60dpi and 240x180dpi for 24 pin printers.  (gdevepsn.c)
11692 
 
11693 
</pre><h3><a name="V5.20_Platforms"></a>Platforms</h3><pre>
11694 
 
11695 
Fixes bugs:
11696 
	- The Windows platform didn't put stdin into binary mode.
11697 
(dwmainc.cpp)
11698 
 
11699 
Removes all remaining uses of gs_malloc and gs_free in platform-specific
11700 
code.  (gp_dosfb.c, gp_vms.c)
11701 
 
11702 
Adds a platform-specific gp_getenv call, to allow the Windows implementation
11703 
to consult the Registry.  (gp.h, gpgetenv.h, gp_getnv.c, gp_wgetv.c, *.mak,
11704 
gp_win32.c)
11705 
 
11706 
Separates out the declaration of popen and pclose, which may be declared
11707 
correctly in stdio.h, incorrectly in stdio.h, or not at all, depending on
11708 
the platform.  (lib.mak, unixtail.mak, pipe_.h, gdevpipe.c, gp_os2.c,
11709 
gp_os9.c, gp_unix.c)
11710 
 
11711 
Tweaks the platform-workaround header file conditionals a little more.
11712 
(malloc_.h, memory_.h).
11713 
 
11714 
Makes the Windows DLL check the GS_DLL environment/registry variable for the
11715 
location of the DLL.  (dwdll.cpp)
11716 
 
11717 
Defines the maximum length for the file name returned by
11718 
gp_open_scratch_file, and possibly by gp_open_printer.  (gp.h, gp_*.c)
11719 
 
11720 
</pre><h3><a name="V5.20_Fonts"></a>Fonts</h3><pre>
11721 
 
11722 
Fixes bugs:
11723 
	- A 'flush' was missing from a debugging message.  (gs_fonts.ps)
11724 
	- Type 2 fonts didn't always have a PaintType entry.  (gs_cff.ps)
11725 
	- CIDFontType 0 fonts were broken, probably because of a recently
11726 
added validity test in the C code.  (gs_cidfn.ps)
11727 
	- Font types without an Encoding caused an error (in .completefont).
11728 
(gs_fonts.ps)
11729 
	- composefont required the elements of the font array to be actual
11730 
fonts, rather than allowing font names.  (gs_cidfn.ps)
11731 
	- composefont required that all elements of the font array have
11732 
CIDSystemInfo dictionaries.  (Adobe has said that their interpreters don't
11733 
check for this in some cases, but it's a bug.  Unfortunately, by now it's an
11734 
established one.)  (zfcmap.c)
11735 
 
11736 
Adds .dir to the list of file suffixes known not to be fonts.  (gs_fonts.ps)
11737 
 
11738 
</pre><h3><a name="V5.20_Interpreter"></a>Interpreter</h3><pre>
11739 
 
11740 
Fixes bugs:
11741 
	- A Type 2 font that provided fewer CharStrings than charset
11742 
elements caused an error.  (gs_cff.ps)
11743 
	- If a context was joined before it terminated, its stack was never
11744 
copied to the joining context.  (zcontext.c)
11745 
	- Freeing a context didn't free most of its substructures.
11746 
(icontext.h, istack.h, icontext.c, interp.c, istack.c, zcontext.c)
11747 
	- save and restore didn't save and restore the user parameters.
11748 
(gs_lev2.ps, zvmem2.c)
11749 
	- %stdin and %stdout weren't defined per-context.  (files.h,
11750 
icontext.h, icontext.c, ziodev.c)
11751 
	- Switching contexts didn't clean up the stacks.  (The current way
11752 
we do this is very inefficient: we should use a special null for filling the
11753 
untouched area, so we can use it to detect the high water mark.)
11754 
(icontext.c)
11755 
	- A cast from const to non-const was missing.  (zdpnext.c)
11756 
	- User parameters weren't managed per-context.  (The current way we
11757 
do this is inefficient.)  (gs_dps.ps, gs_init.ps, gs_lev2.ps, isave.h,
11758 
icontext.c, iinit.c, isave.c, zcontext.c, zusparam.c)
11759 
	- Some operand checks weren't wrapped in do { ... } while(0),
11760 
possibly leading to incorrect parsing of 'if's.  (opcheck.h)
11761 
	- If a context terminated with unmatched saves, the restores weren't
11762 
executed.  (isave.h, isave.c, zcontext.c)
11763 
	- If two or more contexts shared the same global VM, the outermost
11764 
restore (which in this case saves only local VM) checked for invalidrestore
11765 
incorrectly.  (isave.c)
11766 
	- resourceforall didn't remove its own temporary values from the
11767 
operand stack when calling the procedure.  (gs_res.ps)
11768 
	- resourceforall returned local instances even when currentglobal
11769 
was true.  (gs_res.ps)
11770 
	- If a context had unmatched saves, other contexts sharing the same
11771 
local VM weren't blocked from running.  (zcontext.c)
11772 
	- The NeXT compositing operations (Copy, etc.) weren't defined in
11773 
systemdict.  (gs_dpnxt.ps)
11774 
	- In the case of a stack overflow, some garbage could get left on
11775 
the stack.  (istack.c)
11776 
	- Stack overflow was reported prematurely -- typically when the
11777 
stack depth had reached half the specified limit.  (istack.c)
11778 
	- Freed ref arrays weren't filled with nulls, which could confuse
11779 
the garbage collector later.  (ialloc.c)
11780 
	- Certain stack overflow conditions could put a stack into an
11781 
anomalous state that confused the garbage collector.  (istack.c)
11782 
	- The maximum stack size could not be set to a value smaller than
11783 
the current allocated space, but the minimum value should be the number of
11784 
entries actually in use.  (istack.c)
11785 
	- If .buildfont* had to add any elements to the font dictionary, a
11786 
temporary pointer to the Encoding, FDepVector, or sfnts could become
11787 
invalid, causing crashes or confusion.  (zfont0.c, zfont2.c, zfont42.c)
11788 
 
11789 
Changes exit, stop, and .stop so that if there is no matching dynamically
11790 
enclosing context (loop or stopped), the effect is a quit, like the Adobe
11791 
interpreters, and not an invalidexit.  (zcontrol.c)
11792 
 
11793 
Adds support for ImageTypes other than 1.  (gs_init.ps, gs_lev2.ps,
11794 
gs_res.ps, zimage2.c)
11795 
 
11796 
Adds support for LanguageLevel 3 features:
11797 
	- Idiom recognition in 'bind'.  (gs_init.ps, gs_dps.ps, gs_lev2.ps,
11798 
gs_ll3.ps, zmisc3.c)
11799 
	- HalftoneTypes 6, 10, and 16.  (gs_ll3.ps)
11800 
	- FunctionType resource category.  (gs_ll3.ps)
11801 
	- FunctionType 2 and 3 Functions.  (zfunc3.c)
11802 
	- PatternType 2 and smooth shading (structures and API only, no
11803 
algorithms).  (gs_init.ps, gs_ll3.ps, gs_res.ps, zshade.c)
11804 
	- In-RIP trapping (structures and API only, no algorithms).
11805 
(gs_ll3.ps, ztrap.c)
11806 
	- ImageType 3 and 4 (masked images) (structures and parsing only, no
11807 
algorithms). (gs_ll3.ps, gs_res.ps, iimage2.h, zimage.c, zimage2.c,
11808 
zimage3.c)
11809 
	- DevicePixel color space.  (gs_lev2.ps, zcolor2.c, zcspixel.c)
11810 
	- DeviceN color space.  (gs_lev2.ps, igstate.h, zcsdevn.c)
11811 
 
11812 
Adds support for Type 32 fonts.  (gs_cidfn.ps, gs_init.ps, gs_typ32.ps,
11813 
zchar32.c, zfont32.c)
11814 
 
11815 
Adds debugging printout to the CFF loader.  (gs_cff.ps)
11816 
 
11817 
Removes support for _ds pointers referencing the stacks, since we no longer
11818 
support 16-bit implementations.  (iref.h, istack.h, interp.c, ireclaim.c,
11819 
istack.c)
11820 
 
11821 
Removes all #ifdef DPNEXT conditionalization.  (We had intended to use this
11822 
to delimit blocks of code to be released with the GPL, but we're now
11823 
planning to release a much larger number of files.)  (igstate.h, interp.h,
11824 
istruct.h, interp.c, zgstate.c)
11825 
 
11826 
Allows user parameters to be implemented partly in PostScript code, since
11827 
this is required for some LanguageLevel 3 features (currently only
11828 
IdiomRecognition).  (gs_lev2.ps)
11829 
 
11830 
Removes most of the references to a global process scheduler.  Completing
11831 
this will require passing an interpreter state structure to all operators in
11832 
place of the operand stack pointer, which we aren't prepared to contemplate
11833 
yet.  (zcontext.c)
11834 
 
11835 
Adds tracing for context operations, -Z' and -Z".  (zcontext.c)
11836 
 
11837 
Changes def so that it doesn't have a special exception for storing
11838 
references to local objects into systemdict or its subsidiary dictionaries
11839 
during initialization: such stores now must use .forceput (or .forcedef,
11840 
defined in gs_init.ps using .forceput); changes .forceput to allow storing a
11841 
local reference into any global dictionary, not only systemdict, if the save
11842 
level is 0.  (gs_dps1.ps, gs_init.ps, gs_lev2.ps, gs_pdfwr.ps, gs_res.ps,
11843 
gs_statd.ps, zdict.c)
11844 
 
11845 
Moves all of the initialization of internaldict to PostScript code.
11846 
(gs_init.ps, iinit.c, zcontrol.c)
11847 
 
11848 
Moves the JobName user parameter from C to PostScript code.  (gs_lev2.ps,
11849 
zusparam.c)
11850 
 
11851 
Adds to every dictionary a pointer to the allocator that created it.  This
11852 
allows us to create and grow dictionaries without having to reference any
11853 
global variables.  (idict.h, idict.c, iinit.c)
11854 
 
11855 
Implements the localfork operator, which creates contexts with private local
11856 
VM.  (gs_dps.ps, gs_init.ps, dstack.h, gsalloc.h, ialloc.c, icontext.c,
11857 
iinit.c, interp.c, zcontext.c)
11858 
 
11859 
Systematizes reliable access to variables in systemdict and userdict.
11860 
(gs_dps1.ps, gs_dps2.ps, gs_fonts.ps, gs_init.ps, gs_lev2.ps, gs_statd.ps,
11861 
gs_type1.ps)
11862 
 
11863 
Starts to eliminate or segregate writable globals that point to
11864 
heap-allocated data.  (Writable globals containing procedures,
11865 
run-time-settable switches, pointers to static data, or non-pointer values
11866 
that are initialized once and idempotently are OK.)  (iconf.c, iinit.c,
11867 
imain.c, imainarg.c, interp.c, zfont1.c, zht2.c, ziodev.c, ztype.c,
11868 
zupath.c, zusparam.c)
11869 
 
11870 
Adds support for ImageType 2 (device source) images.  (gs_dps.ps, zdps.c)
11871 
 
11872 
Adds begin_typed_image to internal device procedure vectors.  (zupath.c)
11873 
 
11874 
Increases the maximum stack sizes to match the Adobe implementation more
11875 
closely.  (gs_init.ps)
11876 
 
11877 
Adds a file_is_invalid macro to work around a bug in the Borland 5.0
11878 
compiler.  (files.h, ziodev.c, zvmem.c)
11879 
 
11880 
Changes the character cache to be allocated in the C heap rather than global
11881 
VM.  This is required because cache chunks are now allocated from the same
11882 
allocator as the cache.  (zfont.c)
11883 
 
11884 
Implements sizeimage and readimage, including a new .getbitsrect operator.
11885 
(gs_dpnxt.ps, gs_init.ps, zdevice.c, zdpnext.c)
11886 
 
11887 
Resets the maximum stack sizes earlier in initialization.  (gs_init.ps)
11888 
 
11889 
Tweaks the default CRD slightly (syntactically, not the content).
11890 
(gs_lev2.ps)
11891 
 
11892 
Adds support for PatternTypes other than 1.  (gs_init.ps, gs_lev2.ps,
11893 
gs_res.ps, zpcolor.c)
11894 
 
11895 
Adds a pointer to the C heap allocator to the gs_main_instance structure,
11896 
working towards the goal of removing all references to gs_memory_default.
11897 
(iminst.h)
11898 
 
11899 
Removes all remaining uses of gs_malloc and gs_free from the interpreter.
11900 
(igc.h, igc.c, imain.c, zfdctd.c, zfdcte.c)
11901 
 
11902 
Adds an explicit #include for all remaining uses of gs_memory_default in the
11903 
interpreter.  (zfdctd.c, zfdcte.c, zvmem.c)
11904 
 
11905 
Adds a map_color_rgb_alpha driver procedure, complementing
11906 
map_rgb_alpha_color.  (zupath.c)
11907 
 
11908 
Removes the obsolete writeppmfile operator.  (zwppm.c[deleted])
11909 
 
11910 
Updates the implementation of the image operators to match the change from
11911 
HasAlpha to Alpha in the image definition structure.  (iimage.h, zcolor1.c,
11912 
zimage.c)
11913 
 
11914 
Reimplements upath in C code, since UnpaintedPath requires it.  (zupath.c)
11915 
 
11916 
Updates interpreter code for the change in the GC interface. (imemory.h,
11917 
istruct.h, icontext.c, igc.c, igcref.c, igcstr.c, ilocate.c, iname.c,
11918 
isave.c, iscan.c, istack.c, zfproc.c)
11919 
 
11920 
Implements the compositing operators.  (zdpnext.c, zdps.c, zupath.c)
11921 
 
11922 
Changes some matrix operators to pass unpacked matrices on the stack.
11923 
(zmatrix.c)
11924 
 
11925 
Moves the alpha-related operators to where they belong.  (zcolor.c,
11926 
zdpnext.c)
11927 
 
11928 
Changes all calls on getenv to gp_getenv.  (imainarg.c, zmisc.c)
11929 
 
11930 
</pre><h3><a name="V5.20_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
11931 
 
11932 
Fixes bugs:
11933 
	- PostScript pass-throughs caused an error.  They are now always
11934 
executed; probably we should offer the option of not executing them, for
11935 
closer compatibility with Acrobat.  (pdf_draw.ps, pdf_main.ps)
11936 
	- Font resources, unlike all other types of resources, couldn't be
11937 
inherited from an ancestor Page(s) object.  (pdf_font.ps)
11938 
	- Resources appearing only in Form or Pattern dictionaries weren't
11939 
recognized as being present.  (pdf_base.ps, pdf_draw.ps, pdf_main.ps)
11940 
 
11941 
Moves closer to supporting Type 0 (and CID) fonts.  (pdf_font.ps)
11942 
 
11943 
</pre><h3><a name="V5.20_Streams"></a>Streams</h3><pre>
11944 
 
11945 
Fixes bugs:
11946 
	- If the image was very narrow or very shallow, the interpolated
11947 
image scaling stream could make an invalid memory reference.  (siscale.c)
11948 
 
11949 
Removes the last few references to gs_malloc and gs_free from stream code.
11950 
Clients now *must* call the set_defaults procedure for the DCT filters
11951 
before initializing them: THIS IS A NON-BACKWARD-COMPATIBLE CHANGE.
11952 
(sdct.h, sdctd.c, sdcte.c, sjpegc.c)
11953 
 
11954 
Adds an explicit #include for all remaining uses of gs_memory_default.
11955 
(sdctd.c, sdcte.c, szlibd.c, szlibe.c)
11956 
 
11957 
</pre><h3><a name="V5.20_Library"></a>Library</h3><pre>
11958 
 
11959 
Fixes bugs:
11960 
	- Some files that included shc.h didn't include scommon.h.  (shc.h)
11961 
	- A file didn't include std.h before &lt;stdio.h&gt;.  (gslib.c)
11962 
	- There was an unnecessary extern (cleanup only).  (gscsepr.c)
11963 
	- The uid.xvalues member of gs_client_pattern structures wasn't
11964 
traced by the GC.  (gspcolor.h)
11965 
	- If an Interpolated image reached the end of the input at exactly
11966 
the wrong time, an assertion could fail.  (gxiscale.c)
11967 
	- With non-ANSI compilers, an integer constant passed to the fmod
11968 
library function, which requires a floating point argument, could cause a
11969 
floating point exception or an incorrect result.  (gsmisc.c)
11970 
	- An error in computing the bounding box sometimes caused strokes to
11971 
print incorrectly (for example, some graduated fills printed incorrectly).
11972 
(gxstroke.c)
11973 
 
11974 
Implements an undocumented (!) feature of Type 2 CharStrings, namely that if
11975 
the endchar operator is invoked with 4 or 5 operands on the stack, it is
11976 
equivalent to the Type 1 seac operator (without the asb operand).  This
11977 
required changing the implementation of seac so that it does the base
11978 
character first, rather than the accent.  (gxtype1.h, gstype1.c, gstype2.c,
11979 
gxtype1.c)
11980 
 
11981 
Adds support for ImageTypes other than 1.  (gsiparam.h, gximage.h,
11982 
gxiparam.h, gdevddrw.c, gsimage.c, gximage.c, gximage0.c)
11983 
 
11984 
Adds support for ImageType 2 (device source) images.  Currently we only
11985 
handle the simplest case (source is not transformed).  (gsimage.h,
11986 
gsiparm2.h, gsimage.c, gximage2.c)
11987 
 
11988 
Adds support for LanguageLevel 3 features:
11989 
	- FunctionType 2 and 3 Functions.  (gsfunc3.h, gsfunc3.c)
11990 
	- PatternType 2 and smooth shading (structures and API only, no
11991 
algorithms).  (gscolor3.h, gsptype2.h, gsshade.h, gxistate.h, gscolor3.c,
11992 
gsshade.c)
11993 
	- In-RIP trapping (structures and API only, no algorithms).
11994 
(gstrap.h, gstrap.c)
11995 
	- ImageType 3 (masked images) (structures and API only, no
11996 
algorithms).  (gsiparm3.h, gximage3.c)
11997 
	- ImageType 4 (chroma-keyed masked images).  (gsiparm4.h,
11998 
gximage4.c)
11999 
	- DevicePixel color space.  (gscpixel.h, gscspace.h, gscpixel.c,
12000 
gximono.c)
12001 
	- DeviceN color space.  (gscspace.h, gscdevn.c)
12002 
 
12003 
Removes the #ifdef FUTURE around the code for passing multi-plane and
12004 
interpolated images through the band list (version 5.01) and for banded
12005 
filling and stroking with colored halftones (version 4.71).  This code is
12006 
now part of the standard release.  (gxcldev.h, gxclpath.h, gxdht.h,
12007 
gxhttype.h, gsht.c, gxclimag.c, gxclread.c, gximage.c)
12008 
 
12009 
Adds a _ptrs6 structure definition macro.  (gsstruct.h)
12010 
 
12011 
Removes #ifdef DPNEXT conditionalization, as in the interpreter (see above).
12012 
(gzstate.h, gsdps.c, gsstate.c, gximage.c, gximage5.c)
12013 
 
12014 
Starts to eliminate or segregate writable globals that point to
12015 
heap-allocated data, as in the interpreter (see above).  (gsbittab.h,
12016 
gscdefs.h, gsdcolor.h, gxclist.h, gxsample.h, gzht.h, gconf.c, gsbitops.c,
12017 
gsbittab.c, gscdef.c, gsdparam.c, gsflip.c, gsinit.c, gsmatrix.c,
12018 
gspcolor.c, gsstate.c, gxcht.c, gxclist.c, gxcmap.c, gxdcolor.c, gxdither.c,
12019 
gxht.c, gximage.c)
12020 
 
12021 
Removes the division between 'low-level' and 'high-level' band list
12022 
facilities.  (gxcldev.h, gxclimag.c, gxclist.c, gxclpath.c)
12023 
 
12024 
Renames gximage*.c as gxi*.c, since these files apply only to ImageType 1
12025 
images and the use of numerical suffixes was confusing.  (gximage.c =&gt;
12026 
gxiinit.c, gximage0.c =&gt; gxidata.c, gximage1.c =&gt; gxifast.c,
12027 
gximage2.c =&gt; gximono.c, gximage3.c =&gt; gxicolor.c, gximage4.c =&gt;
12028 
gxi12bit.c, gximage5.c =&gt; gxiscale.c)
12029 
 
12030 
Provides the ability to enumerate a clipping path (based on the clipping
12031 
list) using an enumerator, in the same way as an ordinary path.  (gxpath.h,
12032 
gzcpath.h, gzpath.h, gxcpath.c, gxpath2.c)
12033 
 
12034 
Speeds up mem_mapped4_copy_mono substantially.  (gdevm4.c)
12035 
 
12036 
Removes all remaining uses of gs_malloc and gs_free in the library, other
12037 
than in drivers.  This turned out to require changing a couple of
12038 
initialization APIs.  (gsfont.h, gslib.h, gxdevice.h, gxfcache.h, gsfont.c,
12039 
gxccman.c)
12040 
 
12041 
Reduces the writable statics related to the default (C heap) allocator to a
12042 
single pointer.  (gsmalloc.h, gsmemory.h, gsinit.c, gsmemory.c)
12043 
 
12044 
Adds support for PatternTypes other than 1.  (gscolor2.h, gspcolor.h,
12045 
gsptype1.h, gxcolor2.h, gspcolor.c)
12046 
 
12047 
Adds an explicit #include for all remaining uses of gs_memory_default that
12048 
aren't covered by gxdevice.h.  (gxclmem.c)
12049 
 
12050 
Splits off the default implementations of the bit-copying device procedures,
12051 
because the file was getting too large.  (gdevdbit.c, gdevdflt.c)
12052 
 
12053 
Adds a procedure for calculating the difference of two rectangles, needed
12054 
for Type 2 images.  (gsrect.h, gxpath.h, gsutil.c)
12055 
 
12056 
Extends the image machinery to allow alpha values to either precede or
12057 
follow color values in image data, replacing HasAlpha with Alpha in the
12058 
ImageType 1 image structure.  (gsiparam.h, gximage.h, gsimage.c, gxclimag.c,
12059 
gxclread.c, gxicolor.c, gxiinit.c, gxiscale.c)
12060 
 
12061 
Extends the path enumeration API to decouple path copying from coordinate
12062 
transformation.  (gspath.h, gzpath.h, gspath1.c, gxpath2.c)
12063 
 
12064 
Changes the garbage collector interface so that all procedures are passed
12065 
through a structure rather than being referenced as externs.  This allows
12066 
programs other than the GC itself to enumerate and relocate pointers, and
12067 
also removes all static dependencies on the GC from the library.  This
12068 
involves a NON-BACKWARD-COMPATIBLE CHANGE to the argument list of enum_ptrs
12069 
procedures, and to the implementation of both enum_ptrs and reloc_ptrs.  (We
12070 
hope that the new macros we've introduced will avoid non-backward-compatible
12071 
changes in the future.)  (gsstruct.h, gdevmem.c, gsalloc.c, gscdevn.c,
12072 
gscolor.c, gscolor2.c, gscsepr.c, gsdevice.c, gsfont.c, gshtscr.c,
12073 
gsimage.c, gsmemory.c, gspcolor.c, gsstate.c, gxcmap.c, gxcpath.c, gxht.c,
12074 
gxiinit.c)
12075 
 
12076 
Moves the image compositing code into the library from its inappropriate
12077 
home in the interpreter.  (gsdpnext.h)
12078 
 
12079 
Splits up gsbitops.h into client interface and implementation support.
12080 
Removes some obsolete code at the same time.  (gdevmem.h, gsbitops.h,
12081 
gxbitops.h, gsbitops.c)
12082 
 
12083 
Creates the concept of compositing functions and compositing devices
12084 
(compositors).  (gscompt.h, gxcomp.h)
12085 
 
12086 
Implements the default compositor for alpha-based compositing.  (gsalphac.h,
12087 
gsalphac.c)
12088 
 
12089 
Creates a store_alpha device that adds alpha channel storage to any other
12090 
device.  (gdevalph.c)
12091 
 
12092 
Moves alpha channel capability into the dpsnext feature, where it should
12093 
have been all along.  (gsalpha.h, gscolor.h, gsalpha.c, gscolor.c,
12094 
gsstate.c)
12095 
 
12096 
Implements color premultiplying by (non-unity) alpha values.  Currently we
12097 
always premultiply towards white: see gxalpha.h for some comments.
12098 
(gxalpha.h, gxcmap.c)
12099 
 
12100 
Reduces the amount of boilerplate in the RasterOp implementation table.
12101 
(gsroptab.c)
12102 
 
12103 
Adds an arg_push_temp_string procedure to accommodate the new gp_getenv
12104 
call.  (gsargs.h, gsargs.c)
12105 
 
12106 
Updates various library APIs to account for the more careful handling of
12107 
file name length.  (gdevprn.h, gxclio.h, gxclist.h, gsdevice.c, gxclfile.c,
12108 
gxclmem.c)
12109 
 
12110 
</pre>
12111 
 
12112 
<hr>
12113 
 
12114 
<h2><a name="Version5.10"></a>Version 5.10 (11/23/97)</h2>
12115 
 
12116 
<p>
12117 
This release, not originally planned, greatly reduces the size of PDF files
12118 
produced by the pdfwrite device, fixes a number of minor problems in PDF
12119 
output, and optionally produces output compatible with Acrobat 2.x, in order
12120 
to address problems reported by NSF in processing these files as part of
12121 
their FastLane electronic proposal submission process.  Aside from that, and
12122 
some localized bug fixes, it has minimal changes from 5.03.
12123 
 
12124 
<h3><a name="V5.10_Documentation"></a>Documentation</h3><pre>
12125 
 
12126 
Fixes bugs:
12127 
	- ansihead.mak referred to unix-ansi.mak, which is actually named
12128 
unixansi.mak.  (ansihead.mak)
12129 
	- README referred to an "If you need help" section that was moved to
12130 
new-user.txt.  (README)
12131 
 
12132 
Updates build information for HP-UX systems.  (make.txt)
12133 
 
12134 
Updates the information for getting Martin Lottermoser's hpdj driver.
12135 
(new-user.txt)
12136 
 
12137 
Improves the error message when a user tries to invoke gswin32c without
12138 
explicitly selecting a device.  (dwmainc.cpp)
12139 
 
12140 
Removes the author's name and e-mail address from the pdf2ps man page, at
12141 
his request.  (pdf2ps.1)
12142 
 
12143 
Improves the documentation for BandBufferSpace.  (language.txt)
12144 
 
12145 
</pre><h3><a name="V5.10_Procedures"></a>Procedures</h3><pre>
12146 
 
12147 
Changes the VMS command files so that they don't echo the commands.
12148 
(append_l.com, copy_one.com, rm_all.com, rm_one.com)
12149 
 
12150 
</pre><h3><a name="V5.10_Utilities"></a>Utilities</h3><pre>
12151 
 
12152 
Fixes bugs:
12153 
	- The "lp" command files all inappropriately set the top margin to
12154 
0.1".  (lp386.bat, lp386r2.bat, lpgs, lpgs.bat, lpr2, lpr2.bat)
12155 
	- The lp386[r2].bat command files inappropriately set the
12156 
LanguageLevel to 1.  (lp386.bat, lp386r2.bat)
12157 
 
12158 
</pre><h3><a name="V5.10_Drivers"></a>Drivers</h3><pre>
12159 
 
12160 
Fixes bugs:
12161 
	- The PDF writer got confused about the current color if the input
12162 
contained text strings separated only by color changes.  (gdevpdf.c)
12163 
	- Some casts between const char * and const byte * were incorrect
12164 
(warnings only).  (gdevpdft.c)
12165 
 
12166 
Adds a NoCancel parameter to the winpr2 device, which suppresses display of
12167 
the dialog box.  (gdevwpr2.c)
12168 
 
12169 
</pre><h3><a name="V5.10_Interpreter"></a>Interpreter</h3><pre>
12170 
 
12171 
Fixes bugs:
12172 
	- An "extern" was omitted, causing a duplicate definition of
12173 
build_function_procs.  (ifunc.h)
12174 
	- The global pseudo-operator table was too small, causing a
12175 
limitcheck in ps2ascii.  (iinit.c)
12176 
	- setcolorspace with a Pattern space with no underlying space would
12177 
cause an error if the current color space was a Pattern space.  (zpcolor.c)
12178 
	- The Decode key was optional, not required, in the dictionary form
12179 
of image[mask].  (zimage2.c)
12180 
 
12181 
Adds two more PCL/PJL reset sequences to the list of sequences to ignore.
12182 
(gs_init.ps)
12183 
 
12184 
</pre><h3><a name="V5.10_Library"></a>Library</h3><pre>
12185 
 
12186 
Fixes bugs:
12187 
	- Multi-screen color halftones could produce "seams".  (gxcht.c)
12188 
	- A bug in the gcc optimizer on H-P RISC workstations caused all
12189 
curves to be output as lines.  (gxpflat.c)
12190 
	- If a non-standard OtherSubr was called before the [h]sbw in a Type
12191 
1 font, a crash could occur.  (gxhint3.c)
12192 
	- gxclist.c didn't include string_.h.  (gxclist.c)
12193 
 
12194 
</pre>
12195 
 
12196 
<hr>
12197 
 
12198 
<h2><a name="Version5.07"></a>Version 5.07 (limited) (10/31/97)</h2>
12199 
 
12200 
<p>
12201 
A few more bug fixes for the 5.10 release.
12202 
 
12203 
<h3><a name="V5.07_Documentation"></a>Documentation</h3><pre>
12204 
 
12205 
Fixes bugs:
12206 
	- Some file and directory names hadn't been updated to match the new
12207 
directory structure on the primary server.  (make.txt, new-user.txt)
12208 
 
12209 
Adds the URL for reaching URW++.  (Fontmap.*)
12210 
 
12211 
</pre><h3><a name="V5.07_Drivers"></a>Drivers</h3><pre>
12212 
 
12213 
Fixes bugs:
12214 
	- Because the C % operator isn't equivalent to 'modulus' for
12215 
negative numerators, gx_default_strip_tile_rectangle could crash in some
12216 
cases.  (gxdevice.h, gdevdflt.c)
12217 
	- In the PDF writer, Dest values were correct (page numbers) for
12218 
GoToR actions, but were incorrect (should be page object references) for
12219 
other actions; also, Rect values were transformed, but should not be.
12220 
(gdevpdfm.c)
12221 
	- In the PDF writer, articles and bookmarks could attempt to write
12222 
multiple Contents streams, which is not allowed.  (gdevpdfx.h, gdevpdf.c,
12223 
gdevpdfm.c)
12224 
	- The PDF writer ignored PS (PostScript pass-through) pdfmarks.
12225 
(gdevpdfm.c)
12226 
	- The PDF writer didn't write out the color space parameters for
12227 
CIE-based spaces.   (gdevpdfi.c)
12228 
 
12229 
</pre><h3><a name="V5.07_Library"></a>Library</h3><pre>
12230 
 
12231 
Fixes bugs:
12232 
	- Suffix subclass structures with 4 added pointers skipped the first
12233 
pointer in the superclass when garbage collecting, possibly causing invalid
12234 
memory accesses.  (gsstruct.h)
12235 
	- An argument list incompatibility in a procedure used in a static
12236 
structure initialization upset some compilers.  (gsfunc.h, gsfunc0.c)
12237 
 
12238 
</pre>
12239 
 
12240 
<hr>
12241 
 
12242 
<h2><a name="Version5.06"></a>Version 5.06 (limited) (10/7/97)</h2>
12243 
 
12244 
<p>
12245 
This fixes a few more bugs in the PDF writer, and a few other very obscure
12246 
problems.  It also adds support for Functions and brings multiple contexts
12247 
closer to working, neither of which we expect actually to be used any time
12248 
soon.  This is intended to be the candidate fileset for the 5.10 release,
12249 
but since we had to tinker with a delicate part of the PDF writer to fix a
12250 
problem affecting visual quality with Acrobat, there may be new bugs that
12251 
will have to be fixed in yet another candidate fileset.
12252 
 
12253 
<h3><a name="V5.06_Documentation"></a>Documentation</h3><pre>
12254 
 
12255 
Fixes bugs:
12256 
	- Jim McPherson's e-mail address was out of date.  (devices.txt)
12257 
	- Invoking ps2pdf with only a single file name is supported on some
12258 
versions of Windows NT and OS/2, not only on Unix.  (ps2pdf.txt)
12259 
	- The ps2pdf documentation didn't indicate that ps2pdf can use the
12260 
Windows "console mode" executable as well as the MS-DOS executable.
12261 
(ps2pdf.txt)
12262 
	- The list of which Distiller parameters actually have an effect was
12263 
incorrect.  (gdevpdfp.c)
12264 
 
12265 
Notes that the cdj550 driver is compatible with the H-P 660C and 660Cse.
12266 
(devs.mak, devices.txt)
12267 
 
12268 
Adds a note about using Acrobat Reader fonts.  (install.txt, use.txt)
12269 
 
12270 
Notes that the LJ 5P, like the 5L, is not a PCL XL printer.  (devs.mak)
12271 
 
12272 
Notes problems and possible problems with certain versions of the Borland
12273 
C++ compiler.  (make.txt)
12274 
 
12275 
Notes the change in -Z:.  (use.txt)
12276 
 
12277 
Updates the uniprint documentation for this release.  (devices.txt)
12278 
 
12279 
Expands the rationale for the large resolution in the bbox device.
12280 
(gdevbbox.c)
12281 
 
12282 
Notes that the H-P DeskJet 600 series can use the djet500 driver with -r600.
12283 
(devs.mak)
12284 
 
12285 
</pre><h3><a name="V5.06_Procedures"></a>Procedures</h3><pre>
12286 
 
12287 
Fixes bugs:
12288 
	- Vector devices didn't include a necessary dependency on the stream
12289 
package.  (lib.mak)
12290 
	- There were several bugs in the ps2pdf.bat file.  (ps2pdf.bat)
12291 
 
12292 
Changes -Z: so it prints some summary lines as well as minimal information
12293 
about banding.  This makes the -ZA trace compatible with our memory leak
12294 
tool.  (iminst.h, imain.c)
12295 
 
12296 
</pre><h3><a name="V5.06_Utilities"></a>Utilities</h3><pre>
12297 
 
12298 
Fixes bugs:
12299 
	- ps2epsi sometimes produced a too-large bounding box, or even
12300 
caused a rangecheck.  (ps2epsi)
12301 
 
12302 
At the advice of a user, removes the RESOLUTION=100 line from pv.sh.
12303 
(pv.sh)
12304 
 
12305 
</pre><h3><a name="V5.06_Drivers"></a>Drivers</h3><pre>
12306 
 
12307 
Fixes bugs:
12308 
	- The PDF writer produced incorrect output for stroke operations
12309 
with unusual CTMs, because PDF, unlike PostScript, applies the CTM to the
12310 
path at the time of the fill or stroke, not as the path is being
12311 
constructed.  (gdevpdfd.c)
12312 
	- Vector devices returned an error, instead of falling back to the
12313 
default implementations, when filling or stroking with a pattern.
12314 
(gdevvec.c)
12315 
	- The PDF writer freed an internal stream structure using the wrong
12316 
allocator, possibly causing memory corruption.  (gdevpdf.c)
12317 
	- The uniprint driver had some compilation problems, and possibly
12318 
other problems as well (consult the source file).  (gdevupd.c, *.upp)
12319 
	- With -dNOCACHE, the PDF writer wrote all text in the base 14 fonts
12320 
twice, once as text and once as outlines.  (gs_pdfwr.ps, gdevpdfd.c)
12321 
	- The PDF writer didn't properly recognize Symbol and ZapfDingbats
12322 
as being among the base 14 fonts.  (gs_pdfwr.ps)
12323 
	- When using Acrobat Reader with font smoothing turned on, the base
12324 
14 fonts appeared too bold on the screen in files produced by ps2pdf,
12325 
because Reader decides that a 100-unit font at 1 unit = 0.1 point should be
12326 
bolder than a 10-unit font at 1 unit = 1 point.  (gdevpdfx.h, gdevpdf.c,
12327 
gdevpdft.c)
12328 
	- The PDF writer didn't convert View/Page specifications for
12329 
bookmark pdfmarks to a Dest key, causing bookmarks not to work.
12330 
(gdevpdfm.c)
12331 
 
12332 
Speeds up the PDF writer by only passing the encoding if it isn't
12333 
StandardEncoding.  (gs_pdfwr.ps, gdevpdft.c)
12334 
 
12335 
Changes the PDF writer's handling of unencoded glyphs.  Adds device
12336 
parameters ReEncodeCharacters and ReAssignCharacters to control how
12337 
unencoded glyphs are handled.  (These parameters will go away when we handle
12338 
variant encodings in full generality.)  (gdevpdfx.h, gdevpdf.c, gdevpdfp.c,
12339 
gdevpdft.c)
12340 
 
12341 
</pre><h3><a name="V5.06_Interpreter"></a>Interpreter</h3><pre>
12342 
 
12343 
Fixes bugs:
12344 
	- setpagedevice didn't restore the stack properly if it failed.
12345 
(gs_setpd.ps)
12346 
	- 0 identmatrix didn't cause an error.  (gs_init.ps)
12347 
	- Devices expecting array-valued parameters didn't accept packed
12348 
arrays.  (iparam.c)
12349 
 
12350 
Starts to de-implement support for special handling of the stacks on
12351 
machines with 16:16 addressing.  Currently this only happens if DPNEXT is
12352 
defined.  (istack.h)
12353 
 
12354 
Brings multiple contexts closer to working.  The interpreter can now run
12355 
some very simple test cases.  (int.mak, icontext.h, igstate.h, interp.h,
12356 
istruct.h, icontext.c, interp.c, zcontext.c, zgstate.c)
12357 
 
12358 
Adds support for FunctionType 0 Functions.  (ifunc.h, iref.h, store.h,
12359 
zfunc.c, zfunc0.c)
12360 
 
12361 
Updates a few remaining pseudo-operators in gs_init.ps to take advantage of
12362 
automatic operand and dictionary stack restoration: eexec, identmatrix,
12363 
pathbbox.  Not updated yet: filter.  (gs_init.ps)
12364 
 
12365 
</pre><h3><a name="V5.06_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
12366 
 
12367 
Fixes bugs:
12368 
	- Separation color spaces weren't supported.  (gs_pdf.ps,
12369 
pdf_draw.ps)
12370 
 
12371 
</pre><h3><a name="V5.06_Library"></a>Library</h3><pre>
12372 
 
12373 
Fixes bugs:
12374 
	- The size argument to gs_free was wrong in an out-of-memory case.
12375 
(This was irrelevant, since gs_free only uses the size argument for
12376 
error-checking during debugging.)  (gdevprn.c)
12377 
	- When freeing a block on the C heap, if -Z@ was set, the block's
12378 
header wasn't filled with the sentinel pattern.  (Only relevant when
12379 
debugging.)  (gsmemory.c)
12380 
	- The C heap allocator didn't fix up pointers properly when freeing
12381 
a block, causing unpredictable memory corruption after a 'resize' call.
12382 
(gsmemory.c)
12383 
	- Using a show operator inside the procedure of a cshow with a
12384 
composite font could cause an invalid access.  (gschar.c)
12385 
 
12386 
Adds support for FunctionType 0 Functions.  (gsdsrc.h, gsfunc.h, gsfunc0.h,
12387 
gxfunc.h, gsdsrc.c, gsfunc.c, gsfunc0.c)
12388 
 
12389 
Moves the GC descriptor for arrays of constant strings to a place where it
12390 
is more visible.  (gscie.h, gsstruct.h, gscie.c, gsmemory.c)
12391 
 
12392 
</pre>
12393 
 
12394 
<hr>
12395 
 
12396 
<h2><a name="Version5.05"></a>Version 5.05 (limited) (9/24/97)</h2>
12397 
 
12398 
<p>
12399 
This fixes a few bugs found in the first few days of testing 5.04.  There
12400 
will probably be several more small incremental filesets before the next
12401 
public release.
12402 
 
12403 
<h3><a name="V5.05_Platforms"></a>Platforms</h3><pre>
12404 
 
12405 
Fixes bugs:
12406 
	- The Windows code wouldn't compile with the latest MSVC++, because
12407 
Microsoft changed the prototype for fprintf.  (gp_msio.c)
12408 
 
12409 
</pre><h3><a name="V5.05_Drivers"></a>Drivers</h3><pre>
12410 
 
12411 
Fixes bugs:
12412 
	- A picky compiler complained about some omitted casts.  (gdevpdf.c,
12413 
gdevpdft.c)
12414 
	- Writing a PDF file with any synthesized fonts could produce
12415 
slightly garbled output or possibly even an invalid memory access, because a
12416 
string was not terminated.  (gdevpdft.c)
12417 
	- When writing a PDF file, the first character of a string could get
12418 
placed off the page, because of a matrix bookkeeping error.  (gdevpdft.c)
12419 
 
12420 
</pre><h3><a name="V5.05_Interpreter"></a>Interpreter</h3><pre>
12421 
 
12422 
Fixes bugs:
12423 
	- In case of an error, setpagedevice executed a 'stop'
12424 
unconditionally, rather than just signalling an error through the error
12425 
machinery.  (gs_setpd.ps)
12426 
 
12427 
</pre><h3><a name="V5.05_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
12428 
 
12429 
Fixes bugs:
12430 
	- Files with unknown operators caused errors, even if the BX
12431 
operator was used to disable the error report.  (pdf_base.ps)
12432 
 
12433 
</pre>
12434 
 
12435 
<hr>
12436 
 
12437 
<h2><a name="Version5.04"></a>Version 5.04 (limited) (9/21/97)</h2>
12438 
 
12439 
<p>
12440 
This is a test fileset for an unplanned release that greatly reduces the
12441 
size of PDF files produced by the pdfwrite device, and also optionally
12442 
produces output compatible with Acrobat 2.x, in order to address problems
12443 
reported by NSF in processing these files as part of their FastLane
12444 
electronic proposal submission process.  Aside from that, and some localized
12445 
bug fixes, it has minimal changes from 5.03.
12446 
 
12447 
<h3><a name="V5.04_Documentation"></a>Documentation</h3><pre>
12448 
 
12449 
Fixes bugs:
12450 
	- George Cameron's address was listed with a domain of .ukis rather
12451 
than .uk.  (devices.txt)
12452 
	- The default value of ORIENT1 was given as false rather than true.
12453 
(use.txt)
12454 
	- The documentation for ps2pdf said one can omit the output file
12455 
name, but this is only true on Unix systems.  (ps2pdf.txt)
12456 
	- The documentation for ps2pdf didn't make clear that the executable
12457 
must be named gs on Microsoft OSs.  (ps2pdf.txt)
12458 
	- ht_cache is actually allocated with the first gstate, not on
12459 
demand.  (gsstate.c)
12460 
 
12461 
Slightly improves the documentation of .type1execchar.  (zchar1.c)
12462 
 
12463 
Clarifies the distinction between Ghostscript (PostScript) commands and
12464 
shell commands, for the benefit of users brainwashed by Microsoft.
12465 
(use.txt)
12466 
 
12467 
Improves the usage synopsis in the ps2epsi man page.  (ps2epsi.1)
12468 
 
12469 
Adds a reference to Uli Wortmann's H-P drivers.  (new-user.txt)
12470 
 
12471 
Improves the documentation of GS_FONTPATH, distinguishing it from GS_LIB and
12472 
the search path.  (use.txt)
12473 
 
12474 
Notes that on some systems, one must substitute 'installbsd' for 'install'
12475 
in the makefile and make other edits.  (install.txt, ansihead.mak,
12476 
cc-head.mak, gcc-head.mak)
12477 
 
12478 
Notes that ps2epsi is no longer maintained.  (ps2epsi.ps)
12479 
 
12480 
Clarifies the availability of support.  (new-user.txt)
12481 
 
12482 
</pre><h3><a name="V5.04_Procedures"></a>Procedures</h3><pre>
12483 
 
12484 
Fixes bugs:
12485 
	- The uniprint driver was accidentally omitted from the default
12486 
Watcom (MS-DOS) and OS/2 configurations.  (watc.mak, os2.mak)
12487 
	- The suggested compiler switches for Digital Unix were incorrect.
12488 
(make.txt)
12489 
	- The cp.cmd script file didn't work in the newest versions of OS/2.
12490 
(cp.cmd)
12491 
	- The compilation rules for some Windows-specific files didn't
12492 
include ccf32.tr in their dependencies, which could cause the compilation to
12493 
fail.  (winint.mak)
12494 
 
12495 
Removes the lev2min configuration, since we no longer support 16-bit Windows
12496 
environments.  (int.mak)
12497 
 
12498 
</pre><h3><a name="V5.04_Utilities"></a>Utilities</h3><pre>
12499 
 
12500 
Fixes bugs:
12501 
	- ps2epsi.bat always appended to the output file, rather than
12502 
writing over it.  (There are probably other bugs in this script file.)
12503 
(ps2epsi.bat)
12504 
	- The output of pdf2ps didn't execute properly on some printers,
12505 
especially Level 1 printers.  (gs_pdf.ps)
12506 
 
12507 
Makes ps2pdf do an initial 'save', which causes fonts to be retained better
12508 
across pages.  (ps2pdf, ps2pdf.bat)
12509 
 
12510 
Adds an option to pcharstr.ps to produce C-like rather than PostScript-like
12511 
output.  (pcharstr.ps)
12512 
 
12513 
</pre><h3><a name="V5.04_Drivers"></a>Drivers</h3><pre>
12514 
 
12515 
Fixes bugs:
12516 
	- The LaserJet III and higher printers weren't able to print in the
12517 
narrow strip between 1/6" and 1/4" from the left edge of the page.
12518 
(gdevdjet.c)
12519 
	- The PCL XL drivers produced incorrect output which often caused a
12520 
PCL XL NoCurrentFont error at the beginning of the second page.  (gdevpx.c)
12521 
	- The GC descriptors for the pswrite device and for PS/PDF devices
12522 
were incorrect, causing the GC to smash memory.  (gdevpsdf.h, gdevps.c)
12523 
	- The pdfwrite device didn't have a GC descriptor at all.  ******
12524 
DISABLED because the device allocates all its temporary structures directly
12525 
on the C heap. ****** (gdevpdf.c)
12526 
	- When the PDF writer wrote out the Dest key in an action
12527 
dictionary, it always used a page object instead of a page number, even if
12528 
the page was in another file or didn't exist; it now always uses a page
12529 
number.  (gdevpdfm.c)
12530 
	- The PDF writer gave an error if a file redefined any of the 14
12531 
known fonts.  (gs_pdfwr.ps)
12532 
	- The PDF writer didn't handle copy_mono with a non-zero sourcex.
12533 
(This probably had no effect in practice.)  (gdevpdfi.c)
12534 
 
12535 
Splits off gdevpdfd.c (driver drawing procedures) from gdevpdf.c, since the
12536 
file was getting too large.  (gdevpdfx.h, gdevpdf.c, gdevpdfd.c)
12537 
 
12538 
Adds recognition of the CompressPages, CompatibilityLevel, and
12539 
UseFlateCompression device (distiller) parameters to the PDF writer.  If
12540 
CompressPages is true (default), CompatibilityLevel is 1.2 (default), and
12541 
UseFlateCompression is true (default), page contents will be compressed with
12542 
Flate ("zip") compression; otherwise, they will not be compressed.
12543 
 
12544 
Restructures the PDF writer to produce much smaller and faster PDF files, by
12545 
restructuring its handling of text to defer all resources to the end of the
12546 
file, eliminate duplicate Font resources, turn characters into Type 3 fonts
12547 
rather than Image XObjects, use more efficient text positioning commands,
12548 
and optionally (but by default) Flate-compress the contents streams.  Also
12549 
removes some unnecessary spaces in the output.  (gdevpdfx.h, gdevpdf.c,
12550 
gdevpdfd.c, gdevpdfi.c, gdevpdfm.c, gdevpdft.c)
12551 
 
12552 
Improves the PDF writer so that it no longer converts stroke operations with
12553 
non-uniform CTMs to fills, and doesn't bother to stroke empty paths at all.
12554 
(gdevpdfd.c)
12555 
 
12556 
Speeds up the "alternate" X devices substantially.  (gdevxalt.c)
12557 
 
12558 
</pre><h3><a name="V5.04_Interpreter"></a>Interpreter</h3><pre>
12559 
 
12560 
Fixes bugs:
12561 
	- Filling a string with a Pattern caused a crash with the PDF
12562 
writer.  (gs_pdfwr.ps)
12563 
	- Converting a file with no marks at all to PDF produced invalid
12564 
output.  (gdevpdf.c)
12565 
	- .endpage, which is called at the end of every page, sometimes left
12566 
2 extra values on the stack.  (gs_setpd.ps)
12567 
	- A definefont with a Type 1 font lacking a .notdef character didn't
12568 
cause an invalidfont error.  (bfont.h, zfont1.c, zfont2.c)
12569 
	- On anti-aliased devices, characters from Type 1 fonts with an
12570 
incorrect or missing FontBBox came out a factor of 2 or 4 too small if the
12571 
character was small enough to cache.  (zchar1.c)
12572 
	- If a file redefined certain operators, loading Type 1 fonts could
12573 
fail.  This problem was fixed in an earlier release, and somehow the fix got
12574 
undone.  (gs_type1.ps)
12575 
	- cshow didn't set the correct current font when running the
12576 
procedure, and didn't restore it properly afterwards.  (zchar.c, zchar2.c)
12577 
	- With certain compilers, the interpreter loop caused unaligned
12578 
memory accesses on DEC Alpha systems running Windows NT.  (iref.h)
12579 
 
12580 
Adds freelist validation to the memory checker.  (ilocate.c)
12581 
 
12582 
Changes the debugging switch for bypassing the garbage collector from
12583 
compile-time to run-time.  (igc.c)
12584 
 
12585 
Adds the real operators for view clipping (but they don't do anything yet,
12586 
because view clipping isn't implemented at the library level).  (zdps.c,
12587 
zvmem.c)
12588 
 
12589 
Completes the implementation of defineusername.  (zdps.c)
12590 
 
12591 
Adds an implementation of wtranslation, by simply reading a device parameter
12592 
of the same name.  (gs_dps.ps)
12593 
 
12594 
</pre><h3><a name="V5.04_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
12595 
 
12596 
Fixes bugs:
12597 
	- Lab color spaces weren't implemented, and gave an error.
12598 
(gs_pdf.ps)
12599 
	- Images only worked with built-in color spaces, not color space
12600 
resources.  (pdf_draw.ps)
12601 
	- Embedded font subsets were treated as undefined.  (pdf_font.ps)
12602 
 
12603 
</pre><h3><a name="V5.04_Library"></a>Library</h3><pre>
12604 
 
12605 
Fixes bugs:
12606 
	- strokepath sometimes clipped the path to the current clipping
12607 
region, which it should never do.  (gxstroke.c)
12608 
	- The initial X/Y position for Type 2 charstrings (CFFs) sometimes
12609 
was set incorrectly.  (gstype2.c)
12610 
	- Memory management for dash patterns was still incorrect (despite
12611 
the fix in 4.36), possibly causing snarled freelists and invalid memory
12612 
references.  (gsline.c, gsstate.c)
12613 
	- The saved gstate of a Pattern instance was freed properly when the
12614 
instance was freed by reference counting as a result of setting the color or
12615 
color space, but not when the instance was freed by reference counting
12616 
anywhere else.  (gspcolor.c)
12617 
	- A test for whether to use a slower form of oversampling was
12618 
incorrect.  (Probably only a performance bug.)  (gschar.c)
12619 
	- cshow didn't set the correct current font when running the
12620 
procedure, and didn't restore it properly afterwards.  (gsfont.h, gschar.c,
12621 
gsfont.c)
12622 
 
12623 
Improves allocator validity checking when DEBUG is set.  (gsalloc.c)
12624 
 
12625 
Adds a couple of missing FontType values.  (gxftype.h)
12626 
 
12627 
Changes the default conversions between CMYK and RGB colors back to the
12628 
Adobe rules documented in the Red Book, to reduce output differences from
12629 
Adobe implementations.  (gxdcconv.c)
12630 
 
12631 
Adds a graphics state element for view clipping, under an #ifdef DPNEXT, and
12632 
implementations of the view clipping operators (but not the logic for doing
12633 
the actual clipping).  (gsstate.h, gzstate.h, gsstate.c)
12634 
 
12635 
Removes the redundant clip_rule variable from the graphics state (which
12636 
wasn't used for anything).  (gzstate.h, gspath.c)
12637 
 
12638 
</pre>
12639 
 
12640 
<hr>
12641 
 
12642 
<h2><a name="Version5.03"></a>Version 5.03 (8/8/97)</h2>
12643 
 
12644 
<p>
12645 
The only reason for this release is to fix two serious bugs introduced
12646 
between 5.01 and 5.02.  We fixed a few other very localized and low-risk
12647 
bugs at the same time.
12648 
 
12649 
<h3><a name="V5.03_Documentation"></a>Documentation</h3><pre>
12650 
 
12651 
Removes the "(if relevant)" from the bug reporting form, since about 25% of
12652 
the forms are submitted without a URL or any other data.  (bug-form.txt)
12653 
 
12654 
Adds a discussion of single-use procedures to the style guide.
12655 
(c-style.txt)
12656 
 
12657 
Updates the information about obtaining Ghostscript on physical media.
12658 
(new-user.txt)
12659 
 
12660 
Updates the information about ps_view.  (new-user.txt)
12661 
 
12662 
</pre><h3><a name="V5.03_Procedures"></a>Procedures</h3><pre>
12663 
 
12664 
Adds the uniprint driver to all platforms.  (*.mak)
12665 
 
12666 
Changes the contents of the pc.tar.gz archives:
12667 
	- Adds *.upp.
12668 
	- Removes *.res.
12669 
	- Removes cp.bat, font2c.bat, mv.bat, rm.bat, wmakebat.bat,
12670 
	  cp.cmd, mv.cmd and rm.cmd, and gv-vms.hlp.
12671 
 
12672 
Removes an obsolete script file.  (tar_mv)
12673 
 
12674 
</pre><h3><a name="V5.03_Drivers"></a>Drivers</h3><pre>
12675 
 
12676 
Fixes bugs:
12677 
	- The uniprint driver didn't handle an increase in media height
12678 
correctly.  (gdevupd.c)
12679 
 
12680 
</pre><h3><a name="V5.03_Platforms"></a>Platforms</h3><pre>
12681 
 
12682 
Fixes bugs:
12683 
	- Printing to printers other than LPT1 under MS Windows no longer
12684 
worked.  (bug introduced in 5.02)  (gp_mswin.c)
12685 
	- Drag-and-drop didn't work under Windows NT (or other 32-bit
12686 
Windows environments).  (dwtext.cpp)
12687 
	- Sequent systems needed an additional system header file.
12688 
(time_.h)
12689 
 
12690 
</pre><h3><a name="V5.03_Fonts"></a>Fonts</h3><pre>
12691 
 
12692 
Fixes bugs:
12693 
	- The substitutions Myriad =&gt; Times and Minion =&gt; Helvetica were
12694 
incorrect; they should be the other way around.  (gs_fonts.ps)
12695 
	- MyriadPkg wasn't recognized as a condensed font.  (gs_fonts.ps)
12696 
	- Univers wasn't recognized as mapping to Helvetica.  (gs_fonts.ps)
12697 
 
12698 
</pre><h3><a name="V5.03_Interpreter"></a>Interpreter</h3><pre>
12699 
 
12700 
Fixes bugs:
12701 
	- A line of debugging code, printing the sections of 3 regions of
12702 
TrueType fonts being loaded, was accidentally left in.  (gs_ttf.ps)
12703 
	- TrueType fonts whose pre-glyf data had odd length were broken
12704 
(typically gave a rangecheck error), because of the fix to treat the odd
12705 
byte of individual sfnts strings as padding per Adobe documentation.  (bug
12706 
introduced in 5.02) (gs_ttf.ps)
12707 
 
12708 
</pre><h3><a name="V5.03_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
12709 
 
12710 
Fixes bugs:
12711 
	- If a real-number token in a CFF had an even number of nibbles, a
12712 
unmatchedmark error would occur.  (gs_cff.ps)
12713 
	- If the strings Index in a CFF included an empty string, a
12714 
rangecheck error would occur.  (gs_cff.ps)
12715 
	- CFFs with non-standard Encodings that included standard strings
12716 
would get a typecheck error.  (gs_cff.ps)
12717 
 
12718 
</pre><h3><a name="V5.03_Library"></a>Library</h3><pre>
12719 
 
12720 
Fixes bugs:
12721 
	- Using %d in an OutputFile name didn't substitute the page number.
12722 
(bug introduced in 5.02)  (gsdevice.c)
12723 
	- In Type 2 CharStrings, if a hintmask occurred at the beginning, it
12724 
wasn't recognized as also incorporating the function of vstemhm.
12725 
(gstype2.c)
12726 
	- The data bytes for hintmask and cntrmask weren't printed for
12727 
debugging.  (gstype2.c)
12728 
 
12729 
</pre>
12730 
 
12731 
<hr>
12732 
 
12733 
<h2><a name="Version5.02"></a>Version 5.02 (7/28/97)</h2>
12734 
 
12735 
<p>
12736 
Because of an ISP failure that delayed the 5.0 announcement for 12 days, the
12737 
5.01 release only responded to a few days of bug reports; 5.02 fixes some
12738 
problems that should have been fixed in 5.01, as well as a large number of
12739 
obscure problems uncovered by Genoa testing.
12740 
 
12741 
<h3><a name="V5.02_Documentation"></a>Documentation</h3><pre>
12742 
 
12743 
Fixes bugs:
12744 
	- The documentation for building on the Intergraph Clipper was out
12745 
of date.  (make.txt)
12746 
	- ESC was claimed to be a self-delimiting character.  (gs_init.ps)
12747 
	- Removes the documentation claiming that ^D and ^Z are
12748 
self-delimiting.  (language.txt)
12749 
	- Document that -dSUBSTFONT doesn't create a font with the requested
12750 
font name.  (use.txt)
12751 
	- Ghostscript was defined as compatible with PDF 1.1 rather than PDF
12752 
1.2.  (language.txt)
12753 
	- The description of gcc problems on Alpha didn't make it clear that
12754 
the use of gcc was optional, not required.  (make.txt)
12755 
	- The description of how to use GNU make on VMS systems was
12756 
inaccurate.  (make.txt)
12757 
 
12758 
Improves the documentation for building on H-P RISC systems.  (make.txt)
12759 
 
12760 
Corrects the discussion of Cygnus' licensing terms for the cygwin32
12761 
environment.  (make.txt)
12762 
 
12763 
Removes the apology for the poor quality of Ghostscript's TrueType
12764 
rasterizer, since the quality is now quite good.  (fonts.txt)
12765 
 
12766 
Documents the fact that one must use # rather than = with Watcom C.
12767 
(use.txt)
12768 
 
12769 
Documents the updates and additions to the uniprint driver.  (devices.txt)
12770 
 
12771 
Adds some material to Aladdin's C style guide.  (c-style.txt)
12772 
 
12773 
Documents the fact that using gmake requires VMS 6.2 or later on Alphas and
12774 
7.1 (perhaps 7.0) or later on VAXen.  (make.txt)
12775 
 
12776 
Adds an example EPS file.  (psfiles.txt)
12777 
 
12778 
Adds some information about compiling and linking under OS/2.  (make.txt)
12779 
 
12780 
Expands the description of XLIBDIR and XLIBDIRS.  (*head.mak)
12781 
 
12782 
Adds a new pointer to information on using a Kanji font with Ghostscript.
12783 
(new-user.txt)
12784 
 
12785 
Documents the use of /Resource/&lt;category&gt;/&lt;resource&gt; as the default place
12786 
where resources are sought.  (use.txt)
12787 
 
12788 
Updates the documentation on building with MSVC++ to reflect the makefile
12789 
changes.  (make.txt)
12790 
 
12791 
</pre><h3><a name="V5.02_Procedures"></a>Procedures</h3><pre>
12792 
 
12793 
Fixes bugs:
12794 
	- In openvms.mak, several ifdef tests were wrong.  (openvms.mak)
12795 
	- One CP command was slightly inconsistent with the others.
12796 
(zlib.mak)
12797 
	- If libz and libpng were both shared, libz was linked first,
12798 
resulting in some undefined references.  (libpng.mak)
12799 
	- The VMS makefile didn't interact properly with VMS's version
12800 
numbering facility.  (copy_one.com)
12801 
 
12802 
Updates the VMS DCL script one last time, to handle libpng version 96.
12803 
(vms.mak)
12804 
 
12805 
Restructures the MSVC++ makefiles to allow building the graphics library
12806 
without the PostScript interpreter.  (bcwin32.mak, msvc4.mak[deleted],
12807 
msvc5.mak[deleted], msvc32.mak, msvccom.mak, watcw32.mak,
12808 
wincom.mak[deleted], winint.mak, winlib.mak)
12809 
 
12810 
Adds a makefile to create a library-only demo program under MSVC++, like the
12811 
ones for Unix/gcc and MS-DOS/Watcom.  (msvclib.mak)
12812 
 
12813 
Adds an example EPS file.  (ridt91.eps, unix-end.mak)
12814 
 
12815 
Removes support for libpng release 0.88, which is now quite obsolete.
12816 
(libpng.mak)
12817 
 
12818 
</pre><h3><a name="V5.02_Utilities"></a>Utilities</h3><pre>
12819 
 
12820 
Fixes bugs:
12821 
	- ps2pdf.bat, unlike ps2pdf, didn't accept options.  (ps2pdf.bat)
12822 
	- echogs used 'const' in one place, which wasn't accepted by some
12823 
very old compilers.  (echogs.c)
12824 
	- pdf2ps output Orientation, which it shouldn't.  (pdf_main.ps)
12825 
 
12826 
Makes the usage message from ps2pdf.bat include the options, like ps2pdf.
12827 
(ps2pdf.bat)
12828 
 
12829 
Changes the printpath utility so that its output is legal PostScript code.
12830 
(ppath.ps)
12831 
 
12832 
Makes pdf2dsc add DSC comments for the bounding box (if a CropBox is
12833 
available in the PDF file) and the orientation.  (pdf2dsc.ps)
12834 
 
12835 
</pre><h3><a name="V5.02_Drivers"></a>Drivers</h3><pre>
12836 
 
12837 
Fixes bugs:
12838 
	- The get_bits operation wasn't implemented for the vgalib driver.
12839 
(gdevvglb.c)
12840 
	- The dnj650c driver output an extra % near the end of the file.
12841 
(gdevcdj.c)
12842 
	- The definition of pprintd2 didn't have a line break before the
12843 
procedure name, confusing ansi2knr.  (gdevpstr.c)
12844 
	- EPS files produced invalid PDF output.  (gdevpdf.c)
12845 
	- "Vector" output devices didn't recognize %d in output file names,
12846 
or - for output to stdout.  (gdevprn.h, gxdevice.h, gdevprn.c, gdevvec.c,
12847 
gsdevice.c)
12848 
	- With the pdfwrite driver, restore or grestore would cause a
12849 
rangecheck error in .installpagedevice if a setpagedevice had been executed.
12850 
(gdevpdfp.c)
12851 
	- The pdfwrite driver produced garbage output for text rotated by
12852 
angles that were only infinitesimally different from multiples of 90
12853 
degrees.  (gdevpdft.c)
12854 
	- The pnm[raw] driver didn't handle anti-aliasing properly.
12855 
(gdevpbm.c)
12856 
	- The PDF writer didn't scale the parameters for [a][width]show
12857 
correctly.  (gs_pdfwr.ps, gdevpdft.c)
12858 
 
12859 
Fixes some minor compilation warnings not affecting code functionality.
12860 
(gdevbbox.c, gdevpdfm.c, gshtscr.c, gsmemory.c, gxccman.c, gxfill.c,
12861 
gximage0.c)
12862 
 
12863 
Fixes some bugs in the uniprint driver and adds some more printer models.
12864 
(gdevupd.c, bjc610a*.upp, bjc610b*.upp, necp2x6.upp, stc1520h.upp)
12865 
 
12866 
Makes a small change for clean compilation on BeOS.  (gdevcdj.c)
12867 
 
12868 
Updates the PNG driver to use updated API calls for allocating/initializing
12869 
and freeing the PNG structures.  (gdevpng.c)
12870 
 
12871 
</pre><h3><a name="V5.02_Platforms"></a>Platforms</h3><pre>
12872 
 
12873 
Refactors the MS Windows code to allow building the library without the
12874 
interpreter.  (gs_msio.c, gs_mslib.c, gp_mswin.c)
12875 
 
12876 
</pre><h3><a name="V5.02_Fonts"></a>Fonts</h3><pre>
12877 
 
12878 
Fixes bugs:
12879 
	- definefont was executed twice on TrueType fonts.  (No bad
12880 
consequences, just unnecessary work.)  (gs_ttf.ps)
12881 
 
12882 
</pre><h3><a name="V5.02_Interpreter"></a>Interpreter</h3><pre>
12883 
 
12884 
Fixes bugs:
12885 
	- The fix for the 'stopped' around run_string_* in 5.01 was made
12886 
incorrectly.  (gs_init.ps)
12887 
	- Many operators that expect a matrix operand didn't accept packed
12888 
arrays.  (iutil.c)
12889 
	- The default CRD didn't have an explicit BlackPoint, which some
12890 
Genoa tests require.  (gs_lev2.ps)
12891 
	- A stack protection fix caused setscreen and setcolorscreen with
12892 
dictionary operands to give a typecheck.  (gs_dps2.ps)
12893 
	- Executing a string didn't handle tail recursion properly if the
12894 
last token was followed by a single whitespace character.  (interp.c)
12895 
	- Clearing the error indication didn't set errorname to null.
12896 
(gs_init.ps)
12897 
	- Some unexpected items appeared on the execution stack, confusing
12898 
some of the Genoa tests.  (gs_init.ps, istack.h, istack.c, zcontrol.c)
12899 
	- The dummy definitions for setucacheparams/ucachestatus didn't look
12900 
enough like the real ones.  (gs_dps2.ps)
12901 
	- Insideness tests didn't work, because the hit detection device
12902 
width and height weren't set up.  (zupath.c)
12903 
	- defineuserobject didn't use the same algorithm for growing the
12904 
array as Adobe interpreters.  (gs_dps2.ps)
12905 
	- eq and ne didn't work correctly on save objects.  (iutil.c)
12906 
	- findfont used =string internally, interfering with PostScript
12907 
programs that also used it.  (gs_fonts.ps)
12908 
	- cshow didn't set up scaled versions of base fonts as the current
12909 
font.  (zchar2.c)
12910 
	- defineresource didn't make the resource value read-only.
12911 
(gs_res.ps)
12912 
	- If inustroke got an error, it could return without an error
12913 
indication and without changing the stack.  (zupath.c)
12914 
	- The arrays returned by different invocations of currentcolorspace
12915 
with the same device color space weren't guaranteed to be eq.  (gs_lev2.ps)
12916 
	- Out-of-range integers followed by a '.' were converted to names
12917 
rather than reals.  (iscan.c, iscannum.c)
12918 
	- resourceforall caused an invalidaccess error if currentglobal was
12919 
true but the procedure, template, or scratch string was in local VM.
12920 
(gs_res.ps)
12921 
	- In many places, integer values were converted to floats rather
12922 
than doubles, losing precision.  (ichar.h, icharout.h, ifont.h, iutil.h,
12923 
idparam.c, iparam.c, iutil.c, zchar.c, zchar1.c, zchar42.c, zcharout.c,
12924 
zcie.c, zcolor.c, zcolor1.c, zcolor2.c, zcontrol.c, zcsindex.c, zcssepr.c,
12925 
zdpnext.c, zdps1.c, zfont.c, zfont2.c, zgstate.c, zhsb.c, zht.c, zmath.c,
12926 
zmatrix.c, zmedia2.c, zpath.c, zpath1.c, zupath.c)
12927 
	- The TransformPQR procedure in the default CRD didn't pop its
12928 
auxiliary operands from the stack.  (gs_lev2.ps)
12929 
	- Because of an incorrect stack depth check, setcolorrendering
12930 
sometimes produced a stackunderflow.  (zcrd.c)
12931 
	- sethalftone caused an invalidaccess error if the HalfTone type was
12932 
not 5, the dictionary was in local VM, and the current VM was global.
12933 
(gs_dps2.ps)
12934 
	- writeobject and printobject caused an invalidaccess error if the
12935 
object being written was in local VM and the current VM was global.
12936 
(gs_btokn.ps)
12937 
	- ustrokepath appended the strokepath segments to the current path,
12938 
rather than replacing the path.  (zupath.c)
12939 
	- restore incorrectly purged from the character cache any characters
12940 
in a font being freed, even if the font had a UID.  (zfont.c)
12941 
	- The definition of zimage_opaque_setup confused ansi2knr.
12942 
(zimage.c)
12943 
	- Type 42 fonts that included the padding byte in each sfnts string
12944 
didn't work if sfnts had more than one string.  (zfont42.c)
12945 
	- Doing a garbage collection at the same time as handling a
12946 
stackoverflow failed to update the object that needed re-execution, causing
12947 
the interpreter to execute random data.  (interp.c)
12948 
	- %stdout and %stderr weren't flushed if they were closed
12949 
explicitly.  (ziodev.c)
12950 
 
12951 
For greater Adobe compatibility:
12952 
	- Changes setdash to limit dash patterns to 11 elements.  (This is
12953 
enforced at the PostScript level: the graphics library doesn't have a
12954 
limit.)  (gs_init.ps)
12955 
	- Changes ^D and ^Z so they are not self-delimiting characters, and
12956 
changes ^K so it is not a whitespace character.  (gs_init.ps, iscan.c,
12957 
scantab.c)
12958 
	- Makes = cause an error on non-read-accessible objects rather than
12959 
printing them as --nostringval--.  (gs_init.ps)
12960 
	- When -dSUBSTFONT= is used, makes findfont return the actual named
12961 
font, rather than a copy with the FontName changed to the requested one.
12962 
(gs_fonts.ps)
12963 
	- CFF fonts with a non-default FontMatrix caused an error.
12964 
(gs_cff.ps)
12965 
 
12966 
Fixes some minor compilation warnings not affecting code functionality.
12967 
(iparam.c, zfcmap.c)
12968 
 
12969 
Strengthens the test of o-stack validity in the main interpreter loop in
12970 
debug mode.  (interp.c)
12971 
 
12972 
Changes the filling rule for Type 1 fonts from winding-number to even-odd.
12973 
This affects no properly designed fonts, and seems to match Adobe
12974 
interpreters better.  (zchar1.c)
12975 
 
12976 
Implements non-standard Encodings in CFF fonts.  (gs_cff.ps)
12977 
 
12978 
Changes the default halftone screen for 600 dpi printers from 85 to 106 lpi,
12979 
which reduces the number of halftone levels from 50 to 32 but produces
12980 
visually better output.  (gs_init.ps)
12981 
 
12982 
</pre><h3><a name="V5.02_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
12983 
 
12984 
Fixes bugs:
12985 
	- Pattern color spaces weren't supported.  (gs_pdf.ps, pdf_draw.ps)
12986 
 
12987 
Causes references to undefined named Destinations to be ignored rather than
12988 
giving an error.  (pdf_main.ps)
12989 
 
12990 
</pre><h3><a name="V5.02_Library"></a>Library</h3><pre>
12991 
 
12992 
Fixes bugs:
12993 
	- A 'const' was omitted in a declaration, upsetting several
12994 
compilers.  (gxclread.c)
12995 
	- arct and arcto gave an error for negative radii.  (gspath1.c)
12996 
	- The collinearity check for arct[o] could cause some arcs to be
12997 
rendered as single points.  (gspath1.c)
12998 
	- Uncolored patterns sometimes came out blank, because the color
12999 
wasn't set before calling the PaintProc.  (gspcolor.c)
13000 
	- The phase for masking colored patterns was wrong, producing
13001 
incorrect output.  (gspcolor.c)
13002 
	- reversepath always appended the current position to the new path,
13003 
rather than only doing so if the path just consisted of a single moveto.
13004 
(gxpath2.c)
13005 
	- cshow didn't restore the current font properly.  (gschar.h,
13006 
gschar.c)
13007 
	- The check for whether characters can be cached didn't consider
13008 
PaintType values other than 0 and 2.  (gschar.c)
13009 
	- The bounding box device didn't handle PageCount properly.
13010 
(gdevbbox.c)
13011 
	- Uncached fonts with a next_char procedure didn't set the glyph
13012 
properly.  (gschar.c)
13013 
	- Parallelograms with ax &lt; bx, ay &lt; by, and the 'a' edge to the
13014 
right of the 'b' edge weren't filled, causing pixels to be omitted from some
13015 
highly skewed images.  (gdevddrw.c)
13016 
	- 12-bit-per-pixel images in portrait orientation filled each scan
13017 
line with the value of the last pixel -- i.e., didn't work.  (gximage4.c)
13018 
	- The path representation of a clipping path could include some
13019 
inappropriate, leftover path segments.  (gxcpath.c)
13020 
	- The angle for the miter check was computed in device space rather
13021 
than in user space.  (gxstroke.c)
13022 
	- TrueType fonts were lumpy, and the accents of accented characters
13023 
were placed incorrectly.  (gstype42.c)
13024 
	- Some macros used for generating device prototypes didn't
13025 
parenthesize all uses of their parameters, causing possible errors if the
13026 
parameters were expressions rather than numeric constants.  (gdevprn.h)
13027 
	- When banding, strip halftones (typically produced by
13028 
AccurateScreens) sometimes didn't have the correct phase.  (gxbitmap.h,
13029 
gxclread.c)
13030 
	- A minor change was required for correct compilation with Microsoft
13031 
VC++.  (memory_.h)
13032 
	- Under certain conditions, character shapes could get wildly
13033 
distorted by hints.  (bug introduced in 5.01) (gxhint3.c)
13034 
 
13035 
For greater Adobe compatibility:
13036 
	- Changes reversepath so that the implicit line created by closepath
13037 
is not considered a "segment".  (gxpath2.c)
13038 
 
13039 
Fixes some minor compilation warnings not affecting code functionality.
13040 
(gstype1.c)
13041 
 
13042 
Changes the font and scaled-font caches so that if the font has a UID
13043 
(UniqueID or XUID), the UID and FontType are both considered part of the
13044 
key, and we don't cache fonts with non-zero PaintType.  (The Red Book says
13045 
that changing anything except the Encoding should also change or remove the
13046 
UID, but some files don't do this.  The current fix is probably not
13047 
sufficient, but it is a step in the right direction.)  (gxfcache.h,
13048 
gxccache.c, gxccman.c)
13049 
 
13050 
Splits off the definitions of font_type and fbit_type into a separate file,
13051 
since gxfcache.h now needs font_type.  (gxfcache.h, gxfont.h, gxftype.h)
13052 
 
13053 
Makes the Flex feature in Type 1 fonts conform to the published
13054 
specification, rather than always producing curves.  The comment in the code
13055 
(and in the NEWS entry for release 2.6) says that this breaks some very old
13056 
Adobe fonts: if this turns out to be a problem, we'll figure out a test that
13057 
will do the right thing for these fonts.  (gstype1.c)
13058 
 
13059 
Provides 'double' versions of some API functions to accommodate the
13060 
increased use of doubles in the interpreter.  (gschar.h, gschar.c)
13061 
 
13062 
Adds a compile-time option to force the use of strip halftones, for
13063 
debugging.  (gshtscr.c)
13064 
 
13065 
Changes the hint snapping algorithm in the Type 1 rasterizer so that it will
13066 
only change a stem width by a maximum of 1/2 pixel rather than 1 pixel.
13067 
This appears to help with dropouts at certain sizes.  (gxhint2.c)
13068 
 
13069 
Makes a few changes for clean compilation on BeOS.  (stdpre.h, stat_.h,
13070 
gxcpath.c)
13071 
 
13072 
</pre>
13073 
 
13074 
<hr>
13075 
 
13076 
<h2><a name="Version5.01"></a>Version 5.01 (6/22/97)</h2>
13077 
 
13078 
<p>
13079 
This fixes a few bugs reported in the 5.0 release.  This will be a
13080 
commercially supported release.
13081 
 
13082 
<h3><a name="V5.01_Documentation"></a>Documentation</h3><pre>
13083 
 
13084 
Fixes bugs:
13085 
	- README referred to an obsolete file devarch.txt.  (README)
13086 
	- The comment on flip4x12 had a typo.  (gsflip.c)
13087 
	- The algorithm comments for adjusted_y_spans_pixel weren't precise
13088 
enough.  (gxfill.c)
13089 
	- The usage message printed by the ps2pdf script didn't indicate
13090 
that one can now insert options before the input file name.  (ps2pdf)
13091 
	- The file searching documentation didn't indicate that paths
13092 
beginning with ./ or ../ are considered "explicit" and not subject to
13093 
searching.  (use.txt)
13094 
	- The description of SEARCH_HERE_FIRST in the per-platform makefiles
13095 
indicated that it only applied to initialization files, not to files
13096 
specified on the command line as well.  (*.mak)
13097 
	- There were still some references to 16-bit implementations.
13098 
(install.txt)
13099 
 
13100 
Clarifies that -dNODISPLAY also suppresses output to other devices.
13101 
(use.txt)
13102 
 
13103 
Adds the e-mail address for reporting problems to the bug report form, and
13104 
also a space to report makefile changes.  (bug-form.txt)
13105 
 
13106 
Adds a note under -g indicating that it fixes the media size.  (use.txt)
13107 
 
13108 
Adds an explanation of why Ghostscript can't use the system libraries for
13109 
the JPEG package.  (make.txt)
13110 
 
13111 
Notes that ps2ai doesn't work properly with Adobe's Helvetica-Oblique font,
13112 
and other fonts whose original FontMatrix involves skewing or rotation.
13113 
(psfiles.txt)
13114 
 
13115 
Updates the uniprint documentation slightly.  (devices.txt)
13116 
 
13117 
Notes that the new lj5 drivers do not work with the LJ5L.  (devs.mak)
13118 
 
13119 
Modifies the Aladdin Free Public License slightly to make it clearer that
13120 
the exception for freely redistributable CD-ROMs only applies if the CD-ROM
13121 
is being distributed by itself, not with anything else commercial.  (This
13122 
has always been the case, but the previous wording wasn't clear enough.)
13123 
(PUBLIC)
13124 
 
13125 
Notes that gcc with -O still has code generation problems on H-P RISC
13126 
machines.  (make.txt)
13127 
 
13128 
Adds a pointer to Martin Lottermoser's hpdj driver.  (new-user.txt)
13129 
 
13130 
Enhances and reorganizes the documentation for building Ghostscript, in
13131 
response to user feedback.  (make.txt, install.txt)
13132 
 
13133 
Adds a description of the EPSF recognition feature.  (language.txt)
13134 
 
13135 
</pre><h3><a name="V5.01_Procedures"></a>Procedures</h3><pre>
13136 
 
13137 
Fixes bugs:
13138 
	- string__h was misspelled string_h in one place.  (lib.mak)
13139 
	- gs_dps.ps wasn't installed by "make install".  (unix-end.mak)
13140 
	- ccgs (used with non-ANSI C compilers) didn't do the right thing
13141 
with -DPNG_USE_CONST.  (ccgs)
13142 
 
13143 
Adds support for version 96 of libpng, and updates all the makefiles to
13144 
reference it.  (libpng.mak, *.mak)
13145 
 
13146 
Updates the MSVC makefiles to get rid of some warning messages and provide a
13147 
way to specify a library path for the final link.  (msvc*.mak)
13148 
 
13149 
</pre><h3><a name="V5.01_Utilities"></a>Utilities</h3><pre>
13150 
 
13151 
Fixes bugs:
13152 
	- The usage message for the gslp utility had a minor typo.
13153 
(gslp.ps)
13154 
	- The "line printer" utility didn't expand tabs properly when
13155 
producing PostScript output.  (gslp.ps)
13156 
	- The gslp utility didn't automatically include the date.  (gslp)
13157 
	- The line printer scripts didn't pass the script name to the
13158 
utility program, so the usage message didn't use the correct name.  (gsbj*,
13159 
gsdj*, gslj*, gslp*, lp*)
13160 
 
13161 
Modifies the gslp utility so that invoking it with no arguments prints the
13162 
usage message.  (gslp.ps)
13163 
 
13164 
Adds the ability to specify the number of bits per component to the
13165 
CMYK-viewing utility.  (viewcmyk.ps)
13166 
 
13167 
Changes the ps2pdf script so that on Windows NT, as on Unix, it allows
13168 
omitting the output file name, automatically replacing the extension of the
13169 
input file with .pdf.  (ps2pdf.bat)
13170 
 
13171 
</pre><h3><a name="V5.01_Drivers"></a>Drivers</h3><pre>
13172 
 
13173 
Fixes bugs:
13174 
	- Some compilers didn't accept a #define with the macro name on the
13175 
next line.  (gdevpx.c)
13176 
	- The procedure dash_pattern_eq was defined in two places.
13177 
(gdevpdf.c)
13178 
	- The uniprint driver sometimes dropped some output or got confused,
13179 
because of a misunderstanding about how to update device procedure vectors
13180 
properly.  (gdevupd.c)
13181 
	- The PostScript and EPS writers produced binary output for images,
13182 
which generally can't be sent to PostScript printers.  (gdevpsdf.h,
13183 
gdevpdf.c, gdevps.c)
13184 
	- The EPS writer put a %%EOF at the end of the file, which might
13185 
cause problems for some spoolers if the file is embedded in another.
13186 
(gdevps.c)
13187 
 
13188 
Changes the implementation of printer drivers so that they flush the output
13189 
stream after each page.  We aren't absolutely sure that this is a good idea,
13190 
but it prevents certain anomalous behavior where the last page isn't ejected
13191 
properly.  (gdevprn.c)
13192 
 
13193 
Implements a long-delayed update to the mgr drivers, to restore the color
13194 
mapping to an older one.  (gdevmgr.h, gdevmgr.c)
13195 
 
13196 
Updates the uniprint driver with a number of changes from its author.
13197 
(gdevupd.c)
13198 
 
13199 
</pre><h3><a name="V5.01_Platforms"></a>Platforms</h3><pre>
13200 
 
13201 
Adds the JPEG, Postscript, and PCL XL drivers, which are included on all
13202 
other platforms, to the MS Windows platforms.  (bcwin32.mak, msvc4.mak,
13203 
msvc5.mak, watcw32.mak)
13204 
 
13205 
</pre><h3><a name="V5.01_Interpreter"></a>Interpreter</h3><pre>
13206 
 
13207 
Fixes bugs:
13208 
	- composefont defined the resource with the font name and font
13209 
directory interchanged.  (gs_cmap.ps)
13210 
	- With dFIXEDMEDIA, documents requesting other sizes caused an error
13211 
instead of clipping the page.  (gs_init.ps)
13212 
	- PageSize Policy = 7 wasn't implemented.  (However, the current
13213 
implementation is wrong.)  (gs_setpd.ps, zmedia2.c)
13214 
	- FontType resource 42 wasn't defined even if Type 42 fonts were
13215 
supported; similarly for FontType 9, 10, and 11 for CIDFonts.  (gs_cidfn.ps,
13216 
gs_res.ps)
13217 
	- The error handling machinery would break if the name /errordict
13218 
was redefined.  (gs_init.ps)
13219 
	- Level 1 systems got an /undefined in .doneshowpage.  (zdevice.c,
13220 
zdevice2.c)
13221 
	- Because of an initialization order problem, copy didn't work on
13222 
gstates.  (zgeneric.c)
13223 
 
13224 
Adds a naive implementation of findcolorrendering.  (gs_lev2.ps, gs_res.ps)
13225 
 
13226 
Removes the 'stopped' around run_string[_begin/continue/end] so that, as in
13227 
4.03, errors print a hex dump and exit with a non-zero code instead of
13228 
printing a readable message and continuing.  (We aren't sure that this
13229 
change didn't undo the fix in 5.0 regarding calling startjob from
13230 
run_string.)  (gs_init.ps)
13231 
 
13232 
</pre><h3><a name="V5.01_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
13233 
 
13234 
Fixes bugs:
13235 
	- stdin redirection failed for PDF files even if the new stdin was
13236 
seekable.  This was fixed in 4.02, but the fix stopped working with the
13237 
introduction of .runexec.  (pdf_main.ps)
13238 
 
13239 
Makes the cross-reference reader accept a startxref value that points at the
13240 
EOL before the xref line.  The Adobe documentation doesn't allow this, but
13241 
some real files are this way.  (pdf_main.ps)
13242 
 
13243 
</pre><h3><a name="V5.01_Library"></a>Library</h3><pre>
13244 
 
13245 
Fixes bugs:
13246 
	- The bounding box of a completely empty path was reported as
13247 
garbage.  (gxpath2.c)
13248 
	- Stroking a path with more than one segment didn't produce correct
13249 
output when anti-aliasing was used.  (gspaint.c)
13250 
	- The alpha-buffer device returned an incorrect clipping box,
13251 
causing output to be discarded.  (gdevabuf.c)
13252 
	- gx_forward_get_clipping_box passed the wrong device to the target
13253 
procedure, producing incorrect results.  (gdevnfwd.c)
13254 
	- The sin/cos procedure did some unnecessary computations
13255 
(performance bug only).  (gsmisc.c)
13256 
	- The procedure for adjusting the ends of curves to match the
13257 
tangents did some unnecessary computations (performance bug only).
13258 
(gxpcopy.c)
13259 
	- RAM-based banding always gave an invalidfileaccess error, due to a
13260 
typo in memfile_fopen.  (gxclmem.c)
13261 
	- The algorithms for deciding whether a line is thin still weren't
13262 
correct.  (gxstroke.c)
13263 
	- The fill adjustment values for the any-part-of-pixel case (adjust
13264 
= 0.5) were (0.5-epsilon, 0.5+epsilon), which colored inappropriate
13265 
additional pixels if the higher coordinate was integral.  With considerable
13266 
trepidation, we have changed this to (0.5-epsilon,0.5), which does the right
13267 
thing in every case we can think of.  (gxfill.c)
13268 
	- When banding, paths were clipped to only 0.5 pixel outside their
13269 
bounding box, which may be slightly too conservative; 1 pixel is safer.
13270 
(gxclpath.c)
13271 
	- The algorithm for testing whether an adjusted Y value spanned a
13272 
pixel center was incorrect, causing some pixels to get colored incorrectly.
13273 
(gxfill.c)
13274 
	- 24-bit devices could cause a memory fault, by accessing a pointer
13275 
just beyond the end of the line pointer array.  (gdevm24.c)
13276 
	- Astonishingly enough, the determination of which hints were
13277 
applicable to a given segment of a Type 1 character was wrong in several
13278 
different places.  Fixing this in a way that correctly handled all allowed
13279 
permutations of the coordinate system was not simple.  (gxfont1.h,
13280 
gxhint1.c, gxhint3.c)
13281 
	- The debugging printout macros didn't include the syntactic hack to
13282 
prevent an 'else' from begin assigned to the wrong 'if'.  (gdebug.h)
13283 
	- The bbox device was accidentally limited to 130 x 130 pixels (not
13284 
130" x 130").  (bug introduced in 5.0) (gdevbbox.c)
13285 
	- The bbox device didn't recognize PageBoundingBox in put_params,
13286 
causing a possible /undefined error on [g]restore.  (gdevbbox.c)
13287 
	- setlinewidth didn't take the absolute value of its operand.
13288 
(zgstate.c)
13289 
	- Some code formatting was slightly off.  (gximage5.c)
13290 
	- Some extra pixels were written for Interpolated images, but they
13291 
were immediately overwritten, so the output was correct.  (gximage5.c)
13292 
 
13293 
Changes the data flipping API from a macro to a procedure, adds a return
13294 
value, and makes the individual flipping procedures private.  (gsflip.h,
13295 
gsflip.c)
13296 
 
13297 
Adds (under an #ifdef FUTURE) code to allow passing multi-plane images
13298 
through the band list.  (gxclpath.h, gxclimag.c, gxclread.c)
13299 
 
13300 
Adds (under an #ifdef FUTURE) code to allow passing interpolated images
13301 
through the band list.  NOTE: interpolated images will appear slightly
13302 
different than without banding, because the part of the image intersecting
13303 
each band will be scaled slightly differently in the (device) Y direction.
13304 
(gxclpath.h, gxclimag.c, gxclread.c, gximage.c)
13305 
 
13306 
Changes Type 1 hinting so that when it moves points on a curve, it does so
13307 
by properly scaling the curve in the given direction.  (gxhint3.c)
13308 
 
13309 
</pre>
13310 
 
13311 
<hr>
13312 
 
13313 
<h2><a name="Version5.0"></a>Version 5.0 (6/6/97)</h2>
13314 
 
13315 
<p>
13316 
This is the first public release since 4.03.
13317 
 
13318 
<h3><a name="V5.0_Documentation"></a>Documentation</h3><pre>
13319 
 
13320 
Fixes bugs:
13321 
	- Fontmap.Sol was incorrectly referred to as Fontmap.Solaris.
13322 
(use.txt)
13323 
	- There was still a reference to pstoppm in the documentation.
13324 
(psfiles.txt)
13325 
	- The JPEG DOS source site information was out of date.  (jpeg.mak)
13326 
	- The list of devices included in the distributed Unix makefiles was
13327 
out of date.  (make.txt)
13328 
	- The MCU size limitation on the DCT filters was documented
13329 
incorrectly.  (current.txt)
13330 
	- The URL for the uniprint driver home page was incorrect.
13331 
(devices.txt)
13332 
	- The makefiles referred to sfilefd.c, which is now named sfxfd.c.
13333 
(gs.mak, *.mak)
13334 
 
13335 
Adds a VMS help file.  (gs-vms.hlp)
13336 
 
13337 
Removes documentation for Digital Unix (OSF/1) 1.2 and 1.3, which are now
13338 
long obsolete, and updates the documentation for current versions.
13339 
(make.txt)
13340 
 
13341 
Notes that there may be a problem with libpng version 0.95.  (libpng.mak)
13342 
 
13343 
Adds some specific documentation for the JPEG drivers.  (devices.txt)
13344 
 
13345 
Adds a suggestion that people compiling Ghostscript check the values of
13346 
JVERSION and PVERSION.  (make.txt)
13347 
 
13348 
Removes the requirement for setting the LIB environment variable when
13349 
compiling with MSVC.  (make.txt)
13350 
 
13351 
</pre><h3><a name="V5.0_Procedures"></a>Procedures</h3><pre>
13352 
 
13353 
Fixes bugs:
13354 
	- There were a number of small errors in the new OpenVMS makefile.
13355 
(openvms.mak)
13356 
	- The MSVC makefiles omitted a necessary switch to work around some
13357 
"unspecified Pentium bugs".  (msvccom.mak)
13358 
	- The Borland makefile wasn't even close to working; fixing it
13359 
required moving the compilation rule for genarch.exe into the
13360 
compiler-specific makefiles.  (bcwin32.mak, msvccom.mak, watcw32.mak,
13361 
wincom.mak)
13362 
	- There were some (harmless) undefined macro references in the MSVC
13363 
makefile.  (msvccom.mak)
13364 
 
13365 
Makes it unnecessary to set the LIB environment variable for MSVC.
13366 
(msvc4.mak, msvc5.mak, wincom.mak)
13367 
 
13368 
Adds a note on compiling with the cygwin32 gcc compiler for Windows NT.
13369 
(make.txt)
13370 
 
13371 
Updates vms.mak yet again, hopefully for the last time.  (vms.mak)
13372 
 
13373 
Moves the CGM, JPEG, and MIFF file formats from DEVICE_DEVS8 to
13374 
DEVICE_DEVS14 to shorten command lines; adds pcxcmyk to all platforms that
13375 
include PCX format at all; adds jpeggray to all platforms that include jpeg.
13376 
(devs.mak, *.mak)
13377 
 
13378 
Adds -DPNG_USE_CONST for compiling libpng, to get rid of compiler warning
13379 
messages.  (gs.mak)
13380 
 
13381 
Removes obsolete makefiles from the fileset.  (tccommon.mak, tctail.mak)
13382 
 
13383 
</pre><h3><a name="V5.0_Interpreter"></a>Interpreter</h3><pre>
13384 
 
13385 
Fixes bugs:
13386 
	- restore was broken if -dNOBIND was invoked.  This fix should have
13387 
been in the 4.81 fileset, but was left out due to operator error.
13388 
(gs_dps1.ps)
13389 
	- Some compilers complained about macro argument replacement within
13390 
a string literal.  (isave.c)
13391 
	-dSAFER didn't allow opening the %stdxxx files, which caused the
13392 
combination of -dSAFER and -dNOBIND to cause an infinite error.
13393 
(gs_init.ps)
13394 
	- If C code used run_string to execute a startjob, an error
13395 
occurred.  (gs_init.ps)
13396 
 
13397 
</pre><h3><a name="V5.0_Library"></a>Library</h3><pre>
13398 
 
13399 
Fixes bugs:
13400 
	- Some compilers complained about macro argument replacement within
13401 
a string literal.  (gxclbits.c, gdevpdfi.c)
13402 
	- At certain resolutions, a 1-pixel line of the wrong color could
13403 
appear at one edge of landscape-oriented monobit images.  (This is the 4th
13404 
or 5th time we have "fixed" this one infuriatingly fragile piece of code.)
13405 
(gxfixed.h, gximage1.c)
13406 
	- The optimized code for landscape monobit images overlooked the
13407 
possibility of partial images, causing parts of images to be translated and
13408 
possibly clipped.  (Yes, it's that same fragile piece of code.)
13409 
(gximage1.c)
13410 
	- The bounding box device allowed resetting its resolution, which
13411 
could cause limitchecks from coordinate overflow.  Our fix is to initialize
13412 
the device to a very high resolution (4000 dpi), which reduces the maximum
13413 
page size it can handle to about 130" on a side.  (gdevbbox.c)
13414 
	- The bounding box device wasn't identified as a page device.
13415 
(gdevbbox.c)
13416 
	- The bounding box device used alone disregarded changes in page
13417 
size.  (gdevbbox.c)
13418 
	- One old compiler didn't allow a structure member name to be the
13419 
same as a typedef name.  (gximage.h, gximage.c, gximage4.c)
13420 
	- The height and band intersection computations for banded images
13421 
still weren't right, leading to inconsistencies in the band list and errors
13422 
in the output (typically, thin horizontal white stripes at band boundaries).
13423 
(gxclimag.c)
13424 
 
13425 
Adds an extensive memory dump facility to the standard allocator.
13426 
Eventually this should be moved into a separate file, but it would be too
13427 
disruptive to do this just before a release.  (gsalloc.c)
13428 
 
13429 
</pre>
13430 
 
13431 
<!-- [2.0 end contents] ==================================================== -->
13432 
 
13433 
<!-- [3.0 begin visible trailer] =========================================== -->
13434 
<hr>
13435 
 
13436 
<p>
13437 
<small>Copyright &copy; 1997, 1998, 1999, 2000 Aladdin Enterprises.
13438 
All rights reserved.</small>
13439 
 
13440 
<p>
13441 
This software is provided AS-IS with no warranty, either express or
13442 
implied.
13443 
 
13444 
This software is distributed under license and may not be copied,
13445 
modified or distributed except as expressly authorized under the terms
13446 
of the license contained in the file LICENSE in this distribution.
13447 
 
13448 
For more information about licensing, please refer to
13449 
http://www.ghostscript.com/licensing/. For information on
13450 
commercial licensing, go to http://www.artifex.com/licensing/ or
13451 
contact Artifex Software, Inc., 101 Lucas Valley Road #110,
13452 
San Rafael, CA  94903, U.S.A., +1(415)492-9861.
13453 
 
13454 
<p>
13455 
<small>Ghostscript version 8.53, 20 October 2005
13456 
 
13457 
<!-- [3.0 end visible trailer] ============================================= -->
13458 
 
13459 
</body>
13460 
</html>