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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 3.n</title>
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<!-- $Id: History3.htm,v 1.39 2005/10/20 19:46:23 ray Exp $ -->
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<!-- Originally: history3.txt -->
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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] ================================================== -->
21 
 
22 
<h1>History of Ghostscript versions 3.n</h1>
23 
 
24 
<!-- [1.1 end headline] ==================================================== -->
25 
 
26 
<!-- [1.2 begin table of contents] ========================================= -->
27 
 
28 
<h2>Table of contents</h2>
29 
 
30 
<blockquote><ul>
31 
<li><a href="#Version3.70p1">Version 3.70 patch 1 (6/24/96)</a>
32 
<ul>
33 
<li><a href="#V3.70p1_Procedures">Procedures</a>,
34 
    <a href="#V3.70p1_Drivers">Drivers</a>
35 
</ul>
36 
<li><a href="#Version3.70">Version 3.70 (limited) (6/23/96)</a>
37 
<ul>
38 
<li><a href="#V3.70_Documentation">Documentation</a>,
39 
    <a href="#V3.70_Procedures">Procedures</a>,
40 
    <a href="#V3.70_Drivers">Drivers</a>,
41 
    <a href="#V3.70_Platforms">Platforms</a>,
42 
    <a href="#V3.70_Fonts">Fonts</a>,
43 
    <a href="#V3.70_Interpreter">Interpreter</a>,
44 
    <a href="#V3.70_Interpreter_PDF">Interpreter (PDF)</a>,
45 
    <a href="#V3.70_Streams">Streams</a>,
46 
    <a href="#V3.70_Library">Library</a>
47 
</ul>
48 
<li><a href="#Version3.69">Version 3.69 (limited) (6/14/96)</a>
49 
<ul>
50 
<li><a href="#V3.69_Documentation">Documentation</a>,
51 
    <a href="#V3.69_Procedures">Procedures</a>,
52 
    <a href="#V3.69_Utilities">Utilities</a>,
53 
    <a href="#V3.69_Drivers">Drivers</a>,
54 
    <a href="#V3.69_Platforms">Platforms</a>,
55 
    <a href="#V3.69_Fonts">Fonts</a>,
56 
    <a href="#V3.69_Interpreter">Interpreter</a>,
57 
    <a href="#V3.69_Library">Library</a>
58 
</ul>
59 
<li><a href="#Version3.68p4">Version 3.68 patch 4 (5/23/96)</a>
60 
<ul>
61 
<li><a href="#V3.68p4_Documentation">Documentation</a>,
62 
    <a href="#V3.68p4_Procedures">Procedures</a>,
63 
    <a href="#V3.68p4_Drivers">Drivers</a>,
64 
    <a href="#V3.68p4_Platforms">Platforms</a>,
65 
    <a href="#V3.68p4_Fonts">Fonts</a>,
66 
    <a href="#V3.68p4_Interpreter">Interpreter</a>,
67 
    <a href="#V3.68p4_Library">Library</a>
68 
</ul>
69 
<li><a href="#Version3.68p3">Version 3.68 patch 3 (5/17/96)</a>
70 
<ul>
71 
<li><a href="#V3.68p3_Procedures">Procedures</a>,
72 
    <a href="#V3.68p3_Utilities">Utilities</a>,
73 
    <a href="#V3.68p3_Drivers">Drivers</a>,
74 
    <a href="#V3.68p3_Platforms">Platforms</a>,
75 
    <a href="#V3.68p3_Interpreter">Interpreter</a>,
76 
    <a href="#V3.68p3_Library">Library</a>
77 
</ul>
78 
<li><a href="#Version3.68p2">Version 3.68 patch 2 (5/13/96)</a>
79 
<ul>
80 
<li><a href="#V3.68p2_Documentation">Documentation</a>,
81 
    <a href="#V3.68p2_Procedures">Procedures</a>,
82 
    <a href="#V3.68p2_Drivers">Drivers</a>,
83 
    <a href="#V3.68p2_Interpreter">Interpreter</a>,
84 
    <a href="#V3.68p2_Streams">Streams</a>,
85 
    <a href="#V3.68p2_Library">Library</a>
86 
</ul>
87 
<li><a href="#Version3.68p1">Version 3.68 patch 1 (5/10/96)</a>
88 
<ul>
89 
<li><a href="#V3.68p1_Procedures">Procedures</a>
90 
</ul>
91 
<li><a href="#Version3.68">Version 3.68 (limited) (5/9/96)</a>
92 
<ul>
93 
<li><a href="#V3.68_Documentation">Documentation</a>,
94 
    <a href="#V3.68_Procedures">Procedures</a>,
95 
    <a href="#V3.68_Utilities">Utilities</a>,
96 
    <a href="#V3.68_Drivers">Drivers</a>,
97 
    <a href="#V3.68_Platforms">Platforms</a>,
98 
    <a href="#V3.68_Fonts">Fonts</a>,
99 
    <a href="#V3.68_Interpreter">Interpreter</a>,
100 
    <a href="#V3.68_Streams">Streams</a>,
101 
    <a href="#V3.68_Library">Library</a>
102 
</ul>
103 
<li><a href="#Version3.67">Version 3.67 (limited) (4/12/96)</a>
104 
<ul>
105 
<li><a href="#V3.67_Documentation">Documentation</a>,
106 
    <a href="#V3.67_Procedures">Procedures</a>,
107 
    <a href="#V3.67_Platforms">Platforms</a>,
108 
    <a href="#V3.67_Interpreter">Interpreter</a>,
109 
    <a href="#V3.67_Interpreter_PDF">Interpreter (PDF)</a>,
110 
    <a href="#V3.67_Library">Library</a>
111 
</ul>
112 
<li><a href="#Version3.66">Version 3.66 (limited) (4/8/96)</a>
113 
<ul>
114 
<li><a href="#V3.66_Documentation">Documentation</a>,
115 
    <a href="#V3.66_Procedures">Procedures</a>,
116 
    <a href="#V3.66_Utilities">Utilities</a>,
117 
    <a href="#V3.66_Drivers">Drivers</a>,
118 
    <a href="#V3.66_Platforms">Platforms</a>,
119 
    <a href="#V3.66_Fonts">Fonts</a>,
120 
    <a href="#V3.66_Interpreter">Interpreter</a>,
121 
    <a href="#V3.66_Interpreter_PDF">Interpreter (PDF)</a>,
122 
    <a href="#V3.66_Streams">Streams</a>,
123 
    <a href="#V3.66_Library">Library</a>
124 
</ul>
125 
<li><a href="#Version3.65">Version 3.65 (limited) (3/9/96)</a>
126 
<ul>
127 
<li><a href="#V3.65_Documentation">Documentation</a>,
128 
    <a href="#V3.65_Procedures">Procedures</a>,
129 
    <a href="#V3.65_Utilities">Utilities</a>,
130 
    <a href="#V3.65_Drivers">Drivers</a>,
131 
    <a href="#V3.65_Platforms">Platforms</a>,
132 
    <a href="#V3.65_Interpreter">Interpreter</a>,
133 
    <a href="#V3.65_Interpreter_PDF">Interpreter (PDF)</a>,
134 
    <a href="#V3.65_Streams">Streams</a>,
135 
    <a href="#V3.65_Library">Library</a>
136 
</ul>
137 
<li><a href="#Version3.64">Version 3.64 (limited, incremental) (1/27/96)</a>
138 
<ul>
139 
<li><a href="#V3.64_Documentation">Documentation</a>,
140 
    <a href="#V3.64_Procedures">Procedures</a>,
141 
    <a href="#V3.64_Utilities">Utilities</a>,
142 
    <a href="#V3.64_Drivers">Drivers</a>,
143 
    <a href="#V3.64_Platforms">Platforms</a>,
144 
    <a href="#V3.64_Interpreter">Interpreter</a>,
145 
    <a href="#V3.64_Streams">Streams</a>,
146 
    <a href="#V3.64_Library">Library</a>
147 
</ul>
148 
<li><a href="#Version3.63">Version 3.63 (limited, incremental) (1/14/96)</a>
149 
<ul>
150 
<li><a href="#V3.63_Documentation">Documentation</a>,
151 
    <a href="#V3.63_Procedures">Procedures</a>,
152 
    <a href="#V3.63_Utilities">Utilities</a>,
153 
    <a href="#V3.63_Drivers">Drivers</a>,
154 
    <a href="#V3.63_Platforms">Platforms</a>,
155 
    <a href="#V3.63_Interpreter">Interpreter</a>,
156 
    <a href="#V3.63_Interpreter_PDF">Interpreter (PDF)</a>,
157 
    <a href="#V3.63_Streams">Streams</a>,
158 
    <a href="#V3.63_Library">Library</a>
159 
</ul>
160 
<li><a href="#Version3.62">Version 3.62 (limited, incremental) (12/26/95)</a>
161 
<ul>
162 
<li><a href="#V3.62_Documentation">Documentation</a>,
163 
    <a href="#V3.62_Procedures">Procedures</a>,
164 
    <a href="#V3.62_Interpreter">Interpreter</a>,
165 
    <a href="#V3.62_Interpreter_PDF">Interpreter (PDF)</a>,
166 
    <a href="#V3.62_Library">Library</a>
167 
</ul>
168 
<li><a href="#Version3.61">Version 3.61 (limited) (12/10/95)</a>
169 
<ul>
170 
<li><a href="#V3.61_Documentation">Documentation</a>,
171 
    <a href="#V3.61_Procedures">Procedures</a>,
172 
    <a href="#V3.61_Utilities">Utilities</a>,
173 
    <a href="#V3.61_Drivers">Drivers</a>,
174 
    <a href="#V3.61_Platforms">Platforms</a>,
175 
    <a href="#V3.61_Fonts">Fonts</a>,
176 
    <a href="#V3.61_Interpreter">Interpreter</a>,
177 
    <a href="#V3.61_Interpreter_PDF">Interpreter (PDF)</a>,
178 
    <a href="#V3.61_Streams">Streams</a>,
179 
    <a href="#V3.61_Library">Library</a>
180 
</ul>
181 
<li><a href="#Version3.60">Version 3.60 (limited) (11/20/95)</a>
182 
<ul>
183 
<li><a href="#V3.60_Documentation">Documentation</a>,
184 
    <a href="#V3.60_Procedures">Procedures</a>,
185 
    <a href="#V3.60_Utilities">Utilities</a>,
186 
    <a href="#V3.60_Drivers">Drivers</a>,
187 
    <a href="#V3.60_Platforms">Platforms</a>,
188 
    <a href="#V3.60_Fonts">Fonts</a>,
189 
    <a href="#V3.60_Interpreter">Interpreter</a>,
190 
    <a href="#V3.60_Interpreter_PDF">Interpreter (PDF)</a>,
191 
    <a href="#V3.60_Streams">Streams</a>,
192 
    <a href="#V3.60_Library">Library</a>
193 
</ul>
194 
<li><a href="#Version3.53">Version 3.53 (1/10/96)</a>
195 
<ul>
196 
<li><a href="#V3.53_Documentation">Documentation</a>,
197 
    <a href="#V3.53_Procedures">Procedures</a>,
198 
    <a href="#V3.53_Utilities">Utilities</a>,
199 
    <a href="#V3.53_Drivers">Drivers</a>,
200 
    <a href="#V3.53_Platforms">Platforms</a>,
201 
    <a href="#V3.53_Fonts">Fonts</a>,
202 
    <a href="#V3.53_Interpreter">Interpreter</a>,
203 
    <a href="#V3.53_Interpreter_PDF">Interpreter (PDF)</a>,
204 
    <a href="#V3.53_Streams">Streams</a>,
205 
    <a href="#V3.53_Library">Library</a>
206 
</ul>
207 
<li><a href="#Version3.52">Version 3.52 (limited) (10/6/95)</a>
208 
<ul>
209 
<li><a href="#V3.52_Procedures">Procedures</a>,
210 
    <a href="#V3.52_Interpreter">Interpreter</a>,
211 
    <a href="#V3.52_Library">Library</a>
212 
</ul>
213 
<li><a href="#Version3.51">Version 3.51 (9/27/95)</a>
214 
<ul>
215 
<li><a href="#V3.51_Documentation">Documentation</a>,
216 
    <a href="#V3.51_Procedures">Procedures</a>,
217 
    <a href="#V3.51_Utilities">Utilities</a>,
218 
    <a href="#V3.51_Drivers">Drivers</a>,
219 
    <a href="#V3.51_Platforms">Platforms</a>,
220 
    <a href="#V3.51_Interpreter">Interpreter</a>,
221 
    <a href="#V3.51_Interpreter_PDF">Interpreter (PDF)</a>,
222 
    <a href="#V3.51_Library">Library</a>
223 
</ul>
224 
<li><a href="#Version3.50">Version 3.50 (limited) (9/24/95)</a>
225 
<ul>
226 
<li><a href="#V3.50_Procedures">Procedures</a>,
227 
    <a href="#V3.50_Utilities">Utilities</a>,
228 
    <a href="#V3.50_Drivers">Drivers</a>,
229 
    <a href="#V3.50_Interpreter">Interpreter</a>,
230 
    <a href="#V3.50_Interpreter_PDF">Interpreter (PDF)</a>,
231 
    <a href="#V3.50_Library">Library</a>
232 
</ul>
233 
<li><a href="#Version3.49">Version 3.49 (limited) (9/20/95)</a>
234 
<ul>
235 
<li><a href="#V3.49_Documentation">Documentation</a>,
236 
    <a href="#V3.49_Procedures">Procedures</a>,
237 
    <a href="#V3.49_Drivers">Drivers</a>,
238 
    <a href="#V3.49_Platforms">Platforms</a>,
239 
    <a href="#V3.49_Interpreter">Interpreter</a>,
240 
    <a href="#V3.49_Library">Library</a>
241 
</ul>
242 
<li><a href="#Version3.48">Version 3.48 (limited) (9/17/95)</a>
243 
<ul>
244 
<li><a href="#V3.48_Documentation">Documentation</a>,
245 
    <a href="#V3.48_Procedures">Procedures</a>,
246 
    <a href="#V3.48_Drivers">Drivers</a>,
247 
    <a href="#V3.48_Platforms">Platforms</a>,
248 
    <a href="#V3.48_Interpreter">Interpreter</a>,
249 
    <a href="#V3.48_Interpreter_PDF">Interpreter (PDF)</a>,
250 
    <a href="#V3.48_Library">Library</a>
251 
</ul>
252 
<li><a href="#Version3.47">Version 3.47 (limited) (9/14/95)</a>
253 
<ul>
254 
<li><a href="#V3.47_Documentation">Documentation</a>,
255 
    <a href="#V3.47_Procedures">Procedures</a>,
256 
    <a href="#V3.47_Utilities">Utilities</a>,
257 
    <a href="#V3.47_Drivers">Drivers</a>,
258 
    <a href="#V3.47_Platforms">Platforms</a>,
259 
    <a href="#V3.47_Fonts">Fonts</a>,
260 
    <a href="#V3.47_Interpreter">Interpreter</a>,
261 
    <a href="#V3.47_Interpreter_PDF">Interpreter (PDF)</a>,
262 
    <a href="#V3.47_Streams">Streams</a>,
263 
    <a href="#V3.47_Library">Library</a>
264 
</ul>
265 
<li><a href="#Version3.46">Version 3.46 (limited) (9/4/95)</a>
266 
<ul>
267 
<li><a href="#V3.46_Documentation">Documentation</a>,
268 
    <a href="#V3.46_Procedures">Procedures</a>,
269 
    <a href="#V3.46_Utilities">Utilities</a>,
270 
    <a href="#V3.46_Drivers">Drivers</a>,
271 
    <a href="#V3.46_Platforms">Platforms</a>,
272 
    <a href="#V3.46_Interpreter">Interpreter</a>,
273 
    <a href="#V3.46_Interpreter_PDF">Interpreter (PDF)</a>,
274 
    <a href="#V3.46_Library">Library</a>
275 
</ul>
276 
<li><a href="#Version3.45">Version 3.45 (limited) (8/27/95)</a>
277 
<ul>
278 
<li><a href="#V3.45_Documentation">Documentation</a>,
279 
    <a href="#V3.45_Procedures">Procedures</a>,
280 
    <a href="#V3.45_Utilities">Utilities</a>,
281 
    <a href="#V3.45_Drivers">Drivers</a>,
282 
    <a href="#V3.45_Platforms">Platforms</a>,
283 
    <a href="#V3.45_Interpreter">Interpreter</a>,
284 
    <a href="#V3.45_Interpreter_PDF">Interpreter (PDF)</a>,
285 
    <a href="#V3.45_Streams">Streams</a>,
286 
    <a href="#V3.45_Library">Library</a>
287 
</ul>
288 
<li><a href="#Version3.44">Version 3.44 (limited) (8/21/95)</a>
289 
<ul>
290 
<li><a href="#V3.44_Documentation">Documentation</a>,
291 
    <a href="#V3.44_Procedures">Procedures</a>,
292 
    <a href="#V3.44_Utilities">Utilities</a>,
293 
    <a href="#V3.44_Drivers">Drivers</a>,
294 
    <a href="#V3.44_Platforms">Platforms</a>,
295 
    <a href="#V3.44_Interpreter">Interpreter</a>,
296 
    <a href="#V3.44_Interpreter_PDF">Interpreter (PDF)</a>,
297 
    <a href="#V3.44_Library">Library</a>
298 
</ul>
299 
<li><a href="#Version3.43">Version 3.43 (limited) (8/10/95)</a>
300 
<ul>
301 
<li><a href="#V3.43_Documentation">Documentation</a>,
302 
    <a href="#V3.43_Procedures">Procedures</a>,
303 
    <a href="#V3.43_Platforms">Platforms</a>,
304 
    <a href="#V3.43_Fonts">Fonts</a>,
305 
    <a href="#V3.43_Interpreter">Interpreter</a>,
306 
    <a href="#V3.43_Streams">Streams</a>,
307 
    <a href="#V3.43_Library">Library</a>
308 
</ul>
309 
<li><a href="#Version3.42">Version 3.42 (limited) (8/2/95)</a>
310 
<ul>
311 
<li><a href="#V3.42_Documentation">Documentation</a>,
312 
    <a href="#V3.42_Procedures">Procedures</a>,
313 
    <a href="#V3.42_Platforms">Platforms</a>,
314 
    <a href="#V3.42_Interpreter">Interpreter</a>,
315 
    <a href="#V3.42_Streams">Streams</a>,
316 
    <a href="#V3.42_Library">Library</a>
317 
</ul>
318 
<li><a href="#Version3.41">Version 3.41 (limited) (7/27/95)</a>
319 
<ul>
320 
<li><a href="#V3.41_Documentation">Documentation</a>,
321 
    <a href="#V3.41_Procedures">Procedures</a>,
322 
    <a href="#V3.41_Utilities">Utilities</a>,
323 
    <a href="#V3.41_Drivers">Drivers</a>,
324 
    <a href="#V3.41_Platforms">Platforms</a>,
325 
    <a href="#V3.41_Fonts">Fonts</a>,
326 
    <a href="#V3.41_Interpreter">Interpreter</a>,
327 
    <a href="#V3.41_Interpreter_PDF">Interpreter (PDF)</a>,
328 
    <a href="#V3.41_Streams">Streams</a>,
329 
    <a href="#V3.41_Library">Library</a>
330 
</ul>
331 
<li><a href="#Version3.40">Version 3.40 (limited) (6/28/95)</a>
332 
<ul>
333 
<li><a href="#V3.40_Documentation">Documentation</a>,
334 
    <a href="#V3.40_Procedures">Procedures</a>,
335 
    <a href="#V3.40_Utilities">Utilities</a>,
336 
    <a href="#V3.40_Platforms">Platforms</a>,
337 
    <a href="#V3.40_Interpreter">Interpreter</a>,
338 
    <a href="#V3.40_Streams">Streams</a>,
339 
    <a href="#V3.40_Library">Library</a>
340 
</ul>
341 
<li><a href="#Version3.39">Version 3.39 (limited) (6/24/95)</a>
342 
<ul>
343 
<li><a href="#V3.39_Documentation">Documentation</a>,
344 
    <a href="#V3.39_Procedures">Procedures</a>,
345 
    <a href="#V3.39_Utilities">Utilities</a>,
346 
    <a href="#V3.39_Platforms">Platforms</a>,
347 
    <a href="#V3.39_Fonts">Fonts</a>,
348 
    <a href="#V3.39_Interpreter">Interpreter</a>,
349 
    <a href="#V3.39_Streams">Streams</a>,
350 
    <a href="#V3.39_Library">Library</a>
351 
</ul>
352 
<li><a href="#Version3.38">Version 3.38 (limited) (6/18/95)</a>
353 
<ul>
354 
<li><a href="#V3.38_Documentation">Documentation</a>,
355 
    <a href="#V3.38_Procedures">Procedures</a>,
356 
    <a href="#V3.38_Utilities">Utilities</a>,
357 
    <a href="#V3.38_Drivers">Drivers</a>,
358 
    <a href="#V3.38_Platforms">Platforms</a>,
359 
    <a href="#V3.38_Fonts">Fonts</a>,
360 
    <a href="#V3.38_Interpreter">Interpreter</a>,
361 
    <a href="#V3.38_Interpreter_PDF">Interpreter (PDF)</a>,
362 
    <a href="#V3.38_Streams">Streams</a>,
363 
    <a href="#V3.38_Library">Library</a>
364 
</ul>
365 
<li><a href="#Version3.37">Version 3.37 (limited) (5/11/95)</a>
366 
<ul>
367 
<li><a href="#V3.37_Documentation">Documentation</a>,
368 
    <a href="#V3.37_Procedures">Procedures</a>,
369 
    <a href="#V3.37_Utilities">Utilities</a>,
370 
    <a href="#V3.37_Drivers">Drivers</a>,
371 
    <a href="#V3.37_Fonts">Fonts</a>,
372 
    <a href="#V3.37_Interpreter_PostScript">Interpreter (PostScript)</a>,
373 
    <a href="#V3.37_Interpreter_PDF">Interpreter (PDF)</a>
374 
</ul>
375 
<li><a href="#Version3.36">Version 3.36 (limited) (5/4/95)</a>
376 
<ul>
377 
<li><a href="#V3.36_Documentation">Documentation</a>,
378 
    <a href="#V3.36_Procedures">Procedures</a>,
379 
    <a href="#V3.36_Drivers">Drivers</a>,
380 
    <a href="#V3.36_Interpreter">Interpreter</a>,
381 
    <a href="#V3.36_Library">Library</a>
382 
</ul>
383 
<li><a href="#Version3.35">Version 3.35 (internal) (5/2/95)</a>
384 
<ul>
385 
<li><a href="#V3.35_Documentation">Documentation</a>,
386 
    <a href="#V3.35_Procedures">Procedures</a>,
387 
    <a href="#V3.35_Utilities">Utilities</a>,
388 
    <a href="#V3.35_Drivers">Drivers</a>,
389 
    <a href="#V3.35_Platforms">Platforms</a>,
390 
    <a href="#V3.35_Fonts">Fonts</a>,
391 
    <a href="#V3.35_Interpreter">Interpreter</a>,
392 
    <a href="#V3.35_Library">Library</a>
393 
</ul>
394 
<li><a href="#Version3.34">Version 3.34 (internal) (4/18/95)</a>
395 
<ul>
396 
<li><a href="#V3.34_Documentation">Documentation</a>,
397 
    <a href="#V3.34_Procedures">Procedures</a>,
398 
    <a href="#V3.34_Interpreter">Interpreter</a>,
399 
    <a href="#V3.34_Library">Library</a>
400 
</ul>
401 
<li><a href="#Version3.33">Version 3.33 (4/13/95)</a>
402 
<ul>
403 
<li><a href="#V3.33_Documentation">Documentation</a>,
404 
    <a href="#V3.33_Procedures">Procedures</a>,
405 
    <a href="#V3.33_Utilities">Utilities</a>,
406 
    <a href="#V3.33_Drivers">Drivers</a>,
407 
    <a href="#V3.33_Platforms">Platforms</a>,
408 
    <a href="#V3.33_Fonts">Fonts</a>,
409 
    <a href="#V3.33_Library">Library</a>
410 
</ul>
411 
<li><a href="#Version3.32">Version 3.32 (4/7/95)</a>
412 
<ul>
413 
<li><a href="#V3.32_Documentation">Documentation</a>,
414 
    <a href="#V3.32_Procedures">Procedures</a>,
415 
    <a href="#V3.32_Utilities">Utilities</a>,
416 
    <a href="#V3.32_Drivers">Drivers</a>,
417 
    <a href="#V3.32_Platforms">Platforms</a>,
418 
    <a href="#V3.32_Interpreter">Interpreter</a>,
419 
    <a href="#V3.32_Streams">Streams</a>,
420 
    <a href="#V3.32_Library">Library</a>
421 
</ul>
422 
<li><a href="#Version3.31">Version 3.31 (4/2/95)</a>
423 
<ul>
424 
<li><a href="#V3.31_Documentation">Documentation</a>,
425 
    <a href="#V3.31_Procedures">Procedures</a>,
426 
    <a href="#V3.31_Utilities">Utilities</a>,
427 
    <a href="#V3.31_Drivers">Drivers</a>,
428 
    <a href="#V3.31_Platforms">Platforms</a>,
429 
    <a href="#V3.31_Interpreter">Interpreter</a>,
430 
    <a href="#V3.31_Streams">Streams</a>,
431 
    <a href="#V3.31_Library">Library</a>
432 
</ul>
433 
<li><a href="#Version3.30">Version 3.30 (beta) (3/21/95)</a>
434 
<ul>
435 
<li><a href="#V3.30_Documentation">Documentation</a>,
436 
    <a href="#V3.30_Utilities">Utilities</a>,
437 
    <a href="#V3.30_Drivers">Drivers</a>,
438 
    <a href="#V3.30_Interpreter_PostScript">Interpreter (PostScript)</a>,
439 
    <a href="#V3.30_Interpreter_PDF">Interpreter (PDF)</a>,
440 
    <a href="#V3.30_Library">Library</a>
441 
</ul>
442 
<li><a href="#Version3.29">Version 3.29 (internal) (3/8/95)</a>
443 
<ul>
444 
<li><a href="#V3.29_Documentation">Documentation</a>,
445 
    <a href="#V3.29_Procedures">Procedures</a>,
446 
    <a href="#V3.29_Utilities">Utilities</a>,
447 
    <a href="#V3.29_Fonts">Fonts</a>,
448 
    <a href="#V3.29_Drivers">Drivers</a>,
449 
    <a href="#V3.29_Interpreter_PostScript">Interpreter (PostScript)</a>,
450 
    <a href="#V3.29_Interpreter_PDF">Interpreter (PDF)</a>,
451 
    <a href="#V3.29_Streams">Streams</a>,
452 
    <a href="#V3.29_Library">Library</a>
453 
</ul>
454 
<li><a href="#Version3.28">Version 3.28 (beta) (2/13/95)</a>
455 
<ul>
456 
<li><a href="#V3.28_Documentation">Documentation</a>,
457 
    <a href="#V3.28_Procedures">Procedures</a>,
458 
    <a href="#V3.28_Utilities">Utilities</a>,
459 
    <a href="#V3.28_Drivers">Drivers</a>,
460 
    <a href="#V3.28_Interpreter">Interpreter</a>,
461 
    <a href="#V3.28_Library">Library</a>
462 
</ul>
463 
<li><a href="#Version3.27">Version 3.27 (beta)(withdrawn) (2/8/95)</a>
464 
<ul>
465 
<li><a href="#V3.27_Documentation">Documentation</a>,
466 
    <a href="#V3.27_Procedures">Procedures</a>,
467 
    <a href="#V3.27_Utilities">Utilities</a>,
468 
    <a href="#V3.27_Drivers">Drivers</a>,
469 
    <a href="#V3.27_Platforms">Platforms</a>,
470 
    <a href="#V3.27_Fonts">Fonts</a>,
471 
    <a href="#V3.27_Interpreter">Interpreter</a>,
472 
    <a href="#V3.27_Streams">Streams</a>,
473 
    <a href="#V3.27_Library">Library</a>
474 
</ul>
475 
<li><a href="#Version3.26">Version 3.26 (beta) (2/1/95)</a>
476 
<ul>
477 
<li><a href="#V3.26_Documentation">Documentation</a>,
478 
    <a href="#V3.26_Procedures">Procedures</a>,
479 
    <a href="#V3.26_Utilities">Utilities</a>,
480 
    <a href="#V3.26_Drivers">Drivers</a>,
481 
    <a href="#V3.26_Platforms">Platforms</a>,
482 
    <a href="#V3.26_Interpreter">Interpreter</a>,
483 
    <a href="#V3.26_Streams">Streams</a>,
484 
    <a href="#V3.26_Library">Library</a>
485 
</ul>
486 
<li><a href="#Version3.25">Version 3.25 (beta) (1/24/95)</a>
487 
<ul>
488 
<li><a href="#V3.25_Documentation">Documentation</a>,
489 
    <a href="#V3.25_Procedures">Procedures</a>,
490 
    <a href="#V3.25_Drivers">Drivers</a>,
491 
    <a href="#V3.25_Platforms">Platforms</a>,
492 
    <a href="#V3.25_Interpreter">Interpreter</a>,
493 
    <a href="#V3.25_Library">Library</a>
494 
</ul>
495 
<li><a href="#Version3.24">Version 3.24 (beta) (1/17/95)</a>
496 
<ul>
497 
<li><a href="#V3.24_Documentation">Documentation</a>,
498 
    <a href="#V3.24_Procedures">Procedures</a>,
499 
    <a href="#V3.24_Drivers">Drivers</a>,
500 
    <a href="#V3.24_Platforms">Platforms</a>,
501 
    <a href="#V3.24_Fonts">Fonts</a>,
502 
    <a href="#V3.24_Interpreter">Interpreter</a>,
503 
    <a href="#V3.24_Interpreter_PostScript">Interpreter (PostScript)</a>,
504 
    <a href="#V3.24_Interpreter_PDF">Interpreter (PDF)</a>,
505 
    <a href="#V3.24_Streams">Streams</a>,
506 
    <a href="#V3.24_Library">Library</a>
507 
</ul>
508 
<li><a href="#Version3.23">Version 3.23 (beta) (1/5/95)</a>
509 
<ul>
510 
<li><a href="#V3.23_Documentation">Documentation</a>,
511 
    <a href="#V3.23_Procedures">Procedures</a>,
512 
    <a href="#V3.23_Utilities">Utilities</a>,
513 
    <a href="#V3.23_Drivers">Drivers</a>,
514 
    <a href="#V3.23_Platforms">Platforms</a>,
515 
    <a href="#V3.23_Fonts">Fonts</a>,
516 
    <a href="#V3.23_Interpreter_PostScript">Interpreter (PostScript)</a>,
517 
    <a href="#V3.23_Interpreter_PDF">Interpreter (PDF)</a>,
518 
    <a href="#V3.23_Streams">Streams</a>,
519 
    <a href="#V3.23_Library">Library</a>
520 
</ul>
521 
<li><a href="#Version3.22">Version 3.22 (beta) (11/30/94)</a>
522 
<ul>
523 
<li><a href="#V3.22_Procedures">Procedures</a>,
524 
    <a href="#V3.22_Drivers">Drivers</a>,
525 
    <a href="#V3.22_Platforms">Platforms</a>,
526 
    <a href="#V3.22_Fonts">Fonts</a>,
527 
    <a href="#V3.22_Interpreter">Interpreter</a>,
528 
    <a href="#V3.22_Streams">Streams</a>,
529 
    <a href="#V3.22_Library">Library</a>
530 
</ul>
531 
<li><a href="#Version3.21">Version 3.21 (beta) (11/17/94)</a>
532 
<ul>
533 
<li><a href="#V3.21_Documentation">Documentation</a>,
534 
    <a href="#V3.21_Procedures">Procedures</a>,
535 
    <a href="#V3.21_Utilities">Utilities</a>,
536 
    <a href="#V3.21_Drivers">Drivers</a>,
537 
    <a href="#V3.21_Platforms">Platforms</a>,
538 
    <a href="#V3.21_Fonts">Fonts</a>,
539 
    <a href="#V3.21_Interpreter">Interpreter</a>,
540 
    <a href="#V3.21_Streams">Streams</a>,
541 
    <a href="#V3.21_Library">Library</a>
542 
</ul>
543 
<li><a href="#Version3.20">Version 3.20 (beta) (10/31/94)</a>
544 
<ul>
545 
<li><a href="#V3.20_Documentation">Documentation</a>,
546 
    <a href="#V3.20_Procedures">Procedures</a>,
547 
    <a href="#V3.20_Utilities">Utilities</a>,
548 
    <a href="#V3.20_Drivers">Drivers</a>,
549 
    <a href="#V3.20_Platforms">Platforms</a>,
550 
    <a href="#V3.20_Fonts">Fonts</a>,
551 
    <a href="#V3.20_Interpreters">Interpreters</a>,
552 
    <a href="#V3.20_Library">Library</a>
553 
</ul>
554 
<li><a href="#Version3.13">Version 3.13(private) (10/3/94)</a>
555 
<ul>
556 
<li><a href="#V3.13_Documentation">Documentation</a>,
557 
    <a href="#V3.13_Procedures">Procedures</a>,
558 
    <a href="#V3.13_Utilities">Utilities</a>,
559 
    <a href="#V3.13_Drivers">Drivers</a>,
560 
    <a href="#V3.13_Platforms">Platforms</a>,
561 
    <a href="#V3.13_Fonts">Fonts</a>,
562 
    <a href="#V3.13_Interpreter">Interpreter</a>,
563 
    <a href="#V3.13_Streams">Streams</a>,
564 
    <a href="#V3.13_Library">Library</a>
565 
</ul>
566 
<li><a href="#Version3.12">Version 3.12 (9/29/94)</a>
567 
<ul>
568 
<li><a href="#V3.12_Documentation">Documentation</a>,
569 
    <a href="#V3.12_Procedures">Procedures</a>,
570 
    <a href="#V3.12_Drivers">Drivers</a>,
571 
    <a href="#V3.12_Platforms">Platforms</a>,
572 
    <a href="#V3.12_Interpreter">Interpreter</a>,
573 
    <a href="#V3.12_Streams">Streams</a>,
574 
    <a href="#V3.12_Library">Library</a>
575 
</ul>
576 
<li><a href="#Version3.1.1">Version 3.1.1 (9/25/94)</a>
577 
<ul>
578 
<li><a href="#V3.1.1_Documentation">Documentation</a>,
579 
    <a href="#V3.1.1_Procedures">Procedures</a>,
580 
    <a href="#V3.1.1_Drivers">Drivers</a>,
581 
    <a href="#V3.1.1_Platforms">Platforms</a>,
582 
    <a href="#V3.1.1_Interpreter">Interpreter</a>
583 
</ul>
584 
<li><a href="#Version3.1">Version 3.1 (9/20/94)</a>
585 
<ul>
586 
<li><a href="#V3.1_Documentation">Documentation</a>,
587 
    <a href="#V3.1_Procedures">Procedures</a>,
588 
    <a href="#V3.1_Drivers">Drivers</a>,
589 
    <a href="#V3.1_Interpreter">Interpreter</a>,
590 
    <a href="#V3.1_Streams">Streams</a>,
591 
    <a href="#V3.1_Library">Library</a>
592 
</ul>
593 
<li><a href="#Version3.0.3">Version 3.0.3 (9/16/94)</a>
594 
<ul>
595 
<li><a href="#V3.0.3_Documentation">Documentation</a>,
596 
    <a href="#V3.0.3_Procedures">Procedures</a>,
597 
    <a href="#V3.0.3_Utilities">Utilities</a>,
598 
    <a href="#V3.0.3_Drivers">Drivers</a>,
599 
    <a href="#V3.0.3_Platforms">Platforms</a>,
600 
    <a href="#V3.0.3_Fonts">Fonts</a>,
601 
    <a href="#V3.0.3_Streams">Streams</a>,
602 
    <a href="#V3.0.3_Interpreter">Interpreter</a>,
603 
    <a href="#V3.0.3_Library">Library</a>
604 
</ul>
605 
<li><a href="#Version3.02">Version 3.02 (8/30/94)</a>
606 
<ul>
607 
<li><a href="#V3.02_Documentation">Documentation</a>,
608 
    <a href="#V3.02_Procedures">Procedures</a>,
609 
    <a href="#V3.02_Utilities">Utilities</a>,
610 
    <a href="#V3.02_Drivers">Drivers</a>,
611 
    <a href="#V3.02_Platforms">Platforms</a>,
612 
    <a href="#V3.02_Fonts">Fonts</a>,
613 
    <a href="#V3.02_Interpreter">Interpreter</a>,
614 
    <a href="#V3.02_Streams">Streams</a>,
615 
    <a href="#V3.02_Library">Library</a>
616 
</ul>
617 
<li><a href="#Version3.01">Version 3.01 (8/14/94)</a>
618 
<ul>
619 
<li><a href="#V3.01_Documentation">Documentation</a>,
620 
    <a href="#V3.01_Procedures">Procedures</a>,
621 
    <a href="#V3.01_Utilities">Utilities</a>,
622 
    <a href="#V3.01_Drivers">Drivers</a>,
623 
    <a href="#V3.01_Platforms">Platforms</a>,
624 
    <a href="#V3.01_Fonts">Fonts</a>,
625 
    <a href="#V3.01_Interpreter">Interpreter</a>,
626 
    <a href="#V3.01_Streams">Streams</a>,
627 
    <a href="#V3.01_Library">Library</a>
628 
</ul>
629 
<li><a href="#Version3.0">Version 3.0 (8/1/94)</a>
630 
<ul>
631 
<li><a href="#V3.0_Documentation">Documentation</a>,
632 
    <a href="#V3.0_Procedures">Procedures</a>,
633 
    <a href="#V3.0_Utilities">Utilities</a>,
634 
    <a href="#V3.0_Drivers">Drivers</a>,
635 
    <a href="#V3.0_Platforms">Platforms</a>,
636 
    <a href="#V3.0_Fonts">Fonts</a>,
637 
    <a href="#V3.0_Interpreter">Interpreter</a>,
638 
    <a href="#V3.0_Streams">Streams</a>,
639 
    <a href="#V3.0_Library">Library</a>
640 
</ul>
641 
</ul></blockquote>
642 
 
643 
<!-- [1.2 end table of contents] =========================================== -->
644 
 
645 
<!-- [1.3 begin hint] ====================================================== -->
646 
 
647 
<p>
648 
This document is a history of Ghostscript releases numbered 3.n.  For more
649 
recent changes, see the the other history documents and, for the latest
650 
versions, the news:
651 
 
652 
<blockquote>
653 
<a href="News.htm">News</a><br>
654 
<a href="History4.htm">History of Ghostscript versions 4.n</a><br>
655 
History of Ghostscript versions 3.n (this document)<br>
656 
<a href="History2.htm">History of Ghostscript versions 2.n</a><br>
657 
<a href="History1.htm">History of Ghostscript versions 1.n</a>
658 
</blockquote>
659 
 
660 
<p>For other information, see the <a href="Readme.htm">Ghostscript
661 
overview</a>.
662 
 
663 
<!-- [1.3 end hint] ======================================================== -->
664 
 
665 
<hr>
666 
 
667 
<!-- [1.0 end visible header] ============================================== -->
668 
 
669 
<h2><a name="Version3.70p1"></a>Version 3.70 patch 1 (6/24/96)</h2>
670 
 
671 
<p>
672 
This contains a few last-minute patches before the release.
673 
 
674 
<h3><a name="V3.70p1_Procedures"></a>Procedures</h3><pre>
675 
Comments out the color inkjet drivers in the cc-based makefile, because a
676 
bug in Sun's cc prevents them from compiling.  (cc-head.mak)
677 
 
678 
</pre><h3><a name="V3.70p1_Drivers"></a>Drivers</h3><pre>
679 
Fixes bugs:
680 
	- The os2prn driver smashed memory.  (gdevos2p.c)
681 
	- Some initialized structures weren't declared 'static'.
682 
(gdevpdf.c, gdevpdfm.c)
683 
	- The PNG driver wouldn't compile with some older versions of the
684 
PNG library.  (gdevpng.c)
685 
 
686 
</pre>
687 
 
688 
<h2><a name="Version3.70"></a>Version 3.70 (limited) (6/23/96)</h2>
689 
 
690 
<p>
691 
This is the candidate fileset for 4.0.  Aside from one optimization
692 
for the PDF writer, the only changes are bug fixes.
693 
 
694 
<h3><a name="V3.70_Documentation"></a>Documentation</h3><pre>
695 
 
696 
Renames all the documentation files from *.doc to *.txt, since the .doc
697 
extension didn't give any information about the format of the file.
698 
(readme, *.doc, *.txt)
699 
 
700 
Notes that IJG JPEG library v6[a] is now required.  (jpeg.mak)
701 
 
702 
Brings ps2pdf.1 up to date.  (ps2pdf.1)
703 
 
704 
Adds a new file describing Aladdin's C coding practices.  (c-style.txt)
705 
 
706 
Updates the man pages to refer to version 4.0.  (gs.1, pdf2ps.1, ps2ascii.1,
707 
ps2pdf.1)
708 
 
709 
</pre><h3><a name="V3.70_Procedures"></a>Procedures</h3><pre>
710 
 
711 
Changes some file names to fit within the MS-DOS 8.3 limit.  (gs.mak)
712 
 
713 
Adds the PDF writer to the remaining 32-bit configurations (Watcom, OS/2,
714 
MSC).  (watc.mak, watcwin.mak, os2.mak, msc.mak, msvcwint.mak)
715 
 
716 
Changes the -sFONTMAP= switch so it can take a list of font names, like a
717 
search path.  (use.txt)
718 
 
719 
</pre><h3><a name="V3.70_Drivers"></a>Drivers</h3><pre>
720 
 
721 
Fixes bugs:
722 
	- Signed and unsigned values were mixed inconsistently.  (gdevcdj.c)
723 
	- PDF files could contain e-format floating point numbers, which the
724 
PDF specification doesn't allow.  (gdevpdfx.h, gdevpdf*.c)
725 
	- The PDF writer didn't handle glyphshow properly.  (gs_pdfwr.ps)
726 
	- The PDF writer did the wrong thing with fonts whose FontMatrix had
727 
a non-zero translation component.  (gs_pdfwr.ps, gdevpdft.c)
728 
	- The stand-alone bounding box device could crash when setting
729 
parameters.  (gdevbbox.c)
730 
	- The mswinpr2 driver smashed memory.  (gdevwpr2.c)
731 
 
732 
Changes the PDF writer so that if it encounters a re-encoded character, it
733 
tries to map it to an encoded character in the standard (ISO Latin-1)
734 
encoding rather than converting the entire string containing it to a bitmap.
735 
This dramatically improves output file size for files with a few divergently
736 
encoded characters, but it may cause the text in the PDF file to differ from
737 
the text in the PostScript input.  (gdevpdft.c)
738 
 
739 
Disallows BitsPerPixel=16 in the MS Windows and OS/2 drivers, since this bit
740 
depth is not supported by Windows and would require special extra buffering.
741 
(install.txt, dwtext.h, dwtext.cpp, gdevmswn.c, gdevpm.c, gdevwpr2.c)
742 
 
743 
</pre><h3><a name="V3.70_Platforms"></a>Platforms</h3><pre>
744 
 
745 
Fixes bugs:
746 
	- On the PC platforms, file names weren't changed to reflect the
747 
value of CONFIG.  (gs.mak, bc*.mak, ms*.mak, os2.mak, tc*.mak, watc*.mak,
748 
wccommon.mak)
749 
 
750 
Modifies some makefiles for greater reusability.  (bclib.mak, watclib.mak)
751 
 
752 
</pre><h3><a name="V3.70_Fonts"></a>Fonts</h3><pre>
753 
 
754 
Changes the font searching rules in the following NON-BACKWARD-COMPATIBLE
755 
way: (gs_fonts.ps, gs_res.ps)
756 
	- -sFONTMAP=files specifies a list of files containing fontmaps;
757 
previously, it specified only a single fontmap file.
758 
	- If -sFONTMAP= is not used, the interpreter reads the Fontmaps from
759 
*all* directories on the search path, and does so even if FONTPATH or
760 
GS_FONTPATH is set; previously, it read only the first Fontmap, and only if
761 
[GS_]FONTPATH was not set.
762 
	- Fontmap(s) take precedence over [GS_]FONTPATH; previously,
763 
[GS_]FONTPATH caused Fontmap to be ignored.  (You can still force Fontmap to
764 
be ignored with -dNOFONTMAP.)
765 
	- Earlier [GS_]FONTPATH entries take precedence over later;
766 
previously, later entries took precedence over earlier.  Note that this is
767 
different from Fontmap: earlier Fontmaps in the search path take precedence
768 
over later, but within a single Fontmap, later entries take precedence over
769 
earlier (for backward compatibility).
770 
	- [GS_]FONTPATH is consulted only if there is no Fontmap entry for a
771 
font, or no Fontmap entry leads to successful loading; previously,
772 
[GS_]FONTPATH was always consulted at startup.
773 
	- If loading a font fails, the interpreter tries the next Fontmap
774 
entry; previously, it fell back to font substitution.
775 
 
776 
</pre><h3><a name="V3.70_Interpreter"></a>Interpreter</h3><pre>
777 
 
778 
Fixes bugs:
779 
	- Filters didn't peek ahead for an EOD (see Streams below).
780 
(zfileio.c, zpaint.c)
781 
 
782 
Splits up a file to allow internal access to user and system parameters even
783 
in Level 1.  (zmisc2.c, zusparam.c)
784 
 
785 
Adds LIBPATH as a predefined name in systemdict.  Its value is an array of
786 
strings comprising the library search path.  (imain.c)
787 
 
788 
</pre><h3><a name="V3.70_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
789 
 
790 
Fixes bugs:
791 
	- A Dests dictionary entry with an array (rather than a dictionary)
792 
value caused an error.  (pdf_main.ps)
793 
	- Rotated pages could have incorrect translation and/or clipping.
794 
(pdf_main.ps)
795 
 
796 
</pre><h3><a name="V3.70_Streams"></a>Streams</h3><pre>
797 
 
798 
Fixes bugs:
799 
	- If a buffer boundary fell just before an EOD, and the client read
800 
exactly as much data as was present before the EOD, filters didn't consume
801 
the EOD.  (This is required as a tricky consequence of the Adobe
802 
specification.)  (stream.h, strimpl.h, stream.c)
803 
 
804 
</pre><h3><a name="V3.70_Library"></a>Library</h3><pre>
805 
 
806 
Fixes bugs:
807 
	- An extra column of bits could get turned on at the right edge of
808 
masked or monochrome images.  (gximage2.c)
809 
	- Rasterizing very long curves could cause arithmetic errors or
810 
floating point overflows.  (gxpcopy.c)
811 
	- Banding with large line widths could truncate curves or introduce
812 
spurious lines.  (gxclpath.c)
813 
 
814 
</pre>
815 
 
816 
<hr>
817 
 
818 
<h2><a name="Version3.69"></a>Version 3.69 (limited) (6/14/96)</h2>
819 
 
820 
<p>
821 
More bug fixes, plus one irresistible new feature: the ability to use
822 
TrueType fonts as freely as Type 1 fonts.  Also, one new feature (outside
823 
clipping) that was needed for Aladdin's PCL XL project.  We incremented the
824 
version number because of the change in trapezoid and path filling (see
825 
under Library below).
826 
 
827 
<h3><a name="V3.69_Documentation"></a>Documentation</h3><pre>
828 
Brings documentation about fonts up to date.  (fonts.doc)
829 
 
830 
Updates current.doc to reflect changes since 3.53.  (current.doc)
831 
 
832 
Updates the DLL documentation to reflect recent changes.  (dll.doc)
833 
 
834 
Documents a workaround for the code generation bug in gcc 2.7.x.  (make.doc)
835 
 
836 
Changes the contact information for potential commercial customers in
837 
Europe.  (new-user.doc)
838 
 
839 
Updates the OS/2 documentation to make it current.  (install.doc, make.doc)
840 
 
841 
Documents -dCOLORSCREEN=0.  (use.doc)
842 
 
843 
</pre><h3><a name="V3.69_Procedures"></a>Procedures</h3><pre>
844 
 
845 
Fixes bugs:
846 
	- 'make clean' didn't work in the Watcom environment.
847 
(wmakebat.bat, gs.mak, msc.mak, msvcwint.mak, os2.mak, tccommon.mak,
848 
unixhead.mak, wccommon.mak)
849 
	- The X11 libraries were listed in an incorrect order.
850 
(ansihead.mak, cc-head.mak, gcc-head.mak, ugcclib.mak, unix-end.mak)
851 
	- The OS/2 makefile didn't ignore errors from `erase' commands.
852 
(os2.mak)
853 
 
854 
Adds the PDF writer to the 32-bit MS Windows configuration.  (bcwin32.mak)
855 
 
856 
Adds the PNG drivers to the 32-bit MS Windows platform, since they now
857 
compile properly.  (bcwin32.mak)
858 
 
859 
Changes the ttfont feature so that it refers to support for direct usage of
860 
TrueType fonts; puts support for Type 42 fonts into a separate feature
861 
(type42).  (gs.mak, int.mak)
862 
 
863 
Adds direct TrueType font support to the Windows platforms.  (bcwin.mak,
864 
bcwin32.mak)
865 
 
866 
Rewrites vms.mak to be structured more like the other makefiles.  (vms.mak,
867 
modules.lis)
868 
 
869 
Makes the device lists in vms-*.mak the same as those for the Unix
870 
configurations.  (vms-cc.mak, vms-decc.mak, vms-gcc.mak)
871 
 
872 
Changes the default X library directory for gcc to /usr/X11/lib.
873 
(gcc-head.mak)
874 
 
875 
Adds the list of devices to --help, since HylaFax depends on this.
876 
(imainarg.c)
877 
 
878 
Adds -dCOLORSCREEN=0 to indicate use of 4 separate color screens with the
879 
same frequency and angle.  (gs_init.ps)
880 
 
881 
</pre><h3><a name="V3.69_Utilities"></a>Utilities</h3><pre>
882 
 
883 
Fixes bugs:
884 
	- When ps2epsi encountered a blank page, it called the
885 
(undocumented) .quit operator with only one argument, causing a stack
886 
underflow.  (ps2epsi.ps)
887 
	- An extraneous file was included in the fileset.  (checkacc.ps)
888 
	- A file was omitted from the fileset.  (bench.c)
889 
	- Images in PostScript files produced by pdf2ps were processed about
890 
50 times slower than they should have been.  (gs_pdf.ps)
891 
 
892 
</pre><h3><a name="V3.69_Drivers"></a>Drivers</h3><pre>
893 
 
894 
Fixes bugs:
895 
	- An #include was omitted.  (gdevpdfi.c)
896 
	- The BJC driver could get into an inconsistent state.  (gdevcdj.c)
897 
	- Braces were omitted around the values for two initialized byte
898 
arrays.  (gdevpcx.c)
899 
	- A function used 'float' in its argument list, causing problems in
900 
mixed ANSI/non-ANSI compilation.  (gdevcdj.c)
901 
	- signed and unsigned char pointers were used inconsistently.
902 
(gdevcdj.c, gdevcgml.c)
903 
	- Some header files weren't protected against double inclusion.
904 
(gdevprn.h, gdevtifs.h)
905 
	- The 24-bit PNG driver included unnecessary copies of the color
906 
mapping procedures.  (gdevpng.c)
907 
 
908 
Fixes bugs in the PDF writer:
909 
	- The PDF writer sometimes produced a double // in front of a filter
910 
name.  (gdevpdfi.c)
911 
	- The PDF writer produced zero-width, zero-height images for
912 
non-standard fonts.  (bug introduced since 3.68) (gdevpdfi.c)
913 
	- The PDF writer got confused if the input file invoked
914 
setpagedevice.  (gdevpdfp.c)
915 
	- The PDF writer put annotations on the page after the one they were
916 
supposed to be on.  (gdevpdf.c)
917 
	- The PDF writer sometimes failed to set the font when needed.
918 
(gdevpdf.c)
919 
	- The PDF writer could produce in-line images that were too large.
920 
(gdevpdfi.c)
921 
	- The PDF writer didn't scale explicit character and word spacing
922 
(ashow/widthshow/awidthshow) properly.  (gdevpdft.c)
923 
	- The PDF writer didn't copy named destination or article title
924 
strings, possibly leading to dangling pointers.  (gdevpdf.c, gdevpdfm.c)
925 
	- The PDF writer produced incorrect output for re-encoded fonts.
926 
(It now converts any string containing characters in non-standard positions
927 
to bitmaps; this will be fixed in a later release.)  (gs_pdfwr.ps,
928 
gdevpdfx.h, gdevpdfp.c, gdevpdft.c)
929 
 
930 
Updates a few drivers for the change in the handling of band device
931 
procedures.  (gdevcp50.c, gdevdjet.c)
932 
 
933 
Updates the X Windows driver for strip halftones.  (gdevx.c)
934 
 
935 
Adds anti-aliasing capability to the os2pm device.  (gdevpm.c)
936 
 
937 
Increases the sizes of some tables in the PDF writer.  (gdevpdfx.h)
938 
 
939 
</pre><h3><a name="V3.69_Platforms"></a>Platforms</h3><pre>
940 
 
941 
Fixes bugs:
942 
	- A patch for the MS Windows platform was accidentally omitted.
943 
(gp_mswin.c)
944 
	- A block of code was accidentally duplicated.  (dwmain.cpp)
945 
	- An identifier exceeded VAX VMS C's limit of 31 characters.
946 
(gscspace.h)
947 
	- File name enumeration didn't work properly on Unix systems
948 
(still/again).  (gp_unifs.c)
949 
	- On MS Windows, If you closed Ghostscript with the system menu, you
950 
only closed the text window; Ghostscript kept running and you had to use the
951 
task manager to kill it.  (dwmain.cpp, dwmainc.cpp, dwtext.cpp)
952 
	- Some DLL-related typedefs were not consistent.  (dwdll.h, gsdll.h,
953 
dpmainc.c, dwdll.cpp)
954 
	- Attempts to call the DLL before it was initialized were not
955 
detected.  (gsdll.c)
956 
	- Bitmap line lengths were rounded up even on 32-bit Windows, which
957 
doesn't want this.  (gdevwdib.c)
958 
 
959 
Further improves the handling of attempts to use the DLL when it is already
960 
in use.  (dwdll.cpp, gsdll.c)
961 
 
962 
Adds a DLL-compatible main program for OS/2.  (dpmainc.c, gp_os2.c, gsdll.c)
963 
 
964 
</pre><h3><a name="V3.69_Fonts"></a>Fonts</h3><pre>
965 
 
966 
Fixes bugs:
967 
	- The WingDings TrueType font wasn't loaded properly.  (gs_ttf.ps)
968 
 
969 
Makes changes so that TrueType fonts can appear in the Fontmap and can be
970 
loaded directly.  (gs_fonts.ps, gs_ttf.ps)
971 
 
972 
</pre><h3><a name="V3.69_Interpreter"></a>Interpreter</h3><pre>
973 
 
974 
Fixes bugs:
975 
	- Executing a .quit with only 1 element on the operand stack caused
976 
an invalid access.  (zcontrol.c)
977 
	- The usage help message contained incorrect double %%s.
978 
(imainarg.c)
979 
	- If an initialization file tried to use any Encodings other than
980 
the 4 registered ones, it couldn't find them.  (gs_init.ps, gs_res.ps)
981 
	- Places that expected arrays of coordinates (rectangles,
982 
x/y/xyshow) didn't accept packed arrays.  (ibnum.c, zdps1.c)
983 
	- filterdict was still visible after initialization.  (gs_init.ps)
984 
	- The usage error message wasn't terminated by a newline.
985 
(imainarg.c)
986 
	- setcacheparams (or setting the MaxFontCache user parameter) didn't
987 
actually affect the size of the character cache.  (zfont.c, zmisc2.c)
988 
	- The main interpreter loop declared iref as a ref *, even though it
989 
may only be a ref_packed *.  (iref.h, interp.c)
990 
 
991 
Changes the character cache so it ignores absurd FontBBox values.  Nothing
992 
in the Adobe spec suggests doing this, but it is necessary for handling
993 
questionable output produced by PageMaker 5.0 (an Adobe product!).
994 
(zchar1.c)
995 
 
996 
Changes some type declarations slightly to reduce the number of 'discarding
997 
const' compiler warnings.  (igc.h, igc.c, igcref.c)
998 
 
999 
Adds .setclipoutside and .currentclipoutside operators for accessing the new
1000 
outside clipping capability.  (zpath.c)
1001 
 
1002 
Adds the dictionary stack to the information printed in case of a fatal
1003 
problem.  (imain.c)
1004 
 
1005 
Adds .set/currentrenderalgorithm operators for testing.  (zrop.c)
1006 
 
1007 
</pre><h3><a name="V3.69_Library"></a>Library</h3><pre>
1008 
 
1009 
Fixes bugs:
1010 
	- The TrueType rasterizer didn't map quadratic to cubic splines
1011 
well, and didn't handle off-curve points at the end of a contour properly.
1012 
(gstype42.c)
1013 
	- An #include was omitted.  (gsimage.c, gxclimag.c)
1014 
	- Some compilers complained about statements with no effect, or
1015 
comma operators with no effect on the left.  (gschar.c, gxcpath.c, gxfill.c)
1016 
	- TrueType or Type 42 glyphs with a repeat count that crossed a
1017 
contour boundary produced incorrect output.  (gstype42.c)
1018 
	- TrueType / Type 42 composite glyphs involving rotation were placed
1019 
incorrectly.  (gstype42.c)
1020 
	- Type 42 fonts with an absent or incorrect FontBBox could fail to
1021 
produce output.  (gstype42.c)
1022 
	- Some header files weren't protected against double inclusion.
1023 
(gsio.h, gdebug.h)
1024 
	- Decoding filters didn't "look ahead" to detect EOD, so if the last
1025 
read operation before closing the filter ended just before the EOD mark, the
1026 
EOD mark might not be absorbed.  (stream.h, stream.c)
1027 
	- Filling paths consisting of multiple subpaths that overlap in Y
1028 
produced slightly inaccurate output.  We were unable to find a way to fix
1029 
this without making a NON-BACKWARD-COMPATIBLE change in the interface for
1030 
the recently introduced fill_trapezoid device procedure.  (gxdevice.h,
1031 
gdevbbox.c, gdevddrw.c, gdevnfwd.c, gxfill.c)
1032 
	- When banding, get_bits didn't detect calls with out-of-range Y
1033 
values.  (gxclread.c)
1034 
	- setcacheparams didn't actually affect the size of the character
1035 
cache.  (gsfont.h, gxbcache.h, gxfcache.h, gschar.c, gsfont.c, gxbcache.c,
1036 
gxccman.c, gxclbits.c)
1037 
	- When banding, colored halftones could be mangled.  (gxclread.c)
1038 
 
1039 
Fixes bugs in the bounding box device:
1040 
	- The bounding box device could give bizarre results if any objects
1041 
crossed the lower edge of the page.  (gdevbbox.c)
1042 
	- The bounding box device could get a memory access error when
1043 
processing image data.  (gdebbox.c)
1044 
	- The bounding box device ran the default drawing algorithms even if
1045 
it had no target (performance bug only).  (gdevbbox.c)
1046 
	- The bounding box device computed an incorrect (too small) box for
1047 
partially clipped bitmap images.  (gdevbbox.c)
1048 
	- The bounding box device got confused by files that filled the
1049 
entire page with a background color.  (gdevbbox.c)
1050 
	- The bounding box device produced infinite-height boxes for certain
1051 
kinds of data.  (gdevbbox.c)
1052 
 
1053 
Changes some type declarations slightly to reduce the number of 'discarding
1054 
const' compiler warnings.  (gsmemory.h, gsstruct.h)
1055 
 
1056 
Adds the capability of clipping to the outside rather than the inside of the
1057 
clipping path.  This is required for emulating an obscure feature of the
1058 
Microsoft Windows GDI.  (gspath.h, gxclpath.h, gxpath.h, gxcpath.h,
1059 
gzcpath.h, gspath.c, gxacpath.c, gxclpath.c, gxclread.c, gxcpath.c.)
1060 
 
1061 
Makes it possible for band devices to select the underlying memory device
1062 
used to accumulate the actual bits.  This is required for (at least) PCL5
1063 
emulation.  This requires adding a procedure to the gx_device_printer
1064 
structure, which, for devices that initialize the structure without using
1065 
the macros in gdevprn.h or access the printer-specific procedures directly,
1066 
is a NON-BACKWARD-COMPATIBLE change.  (gdevprn.h, gxclist.h, gxdevice.h,
1067 
gdevdflt.c, gdevprn.c, gxclread.c)
1068 
 
1069 
Speeds up handling of rotated or halftoned masked images.  (gximage2.c)
1070 
 
1071 
Adds an output_page procedure to the bounding box device, for testing.
1072 
(gdevbbox.c)
1073 
 
1074 
Adds a sample device that keeps track of the "render algorithm", for PCL5c
1075 
emulation.  (gdevrrgb.c)
1076 
 
1077 
</pre>
1078 
 
1079 
<h2><a name="Version3.68p4"></a>Version 3.68 patch 4 (5/23/96)</h2>
1080 
 
1081 
<p>
1082 
More minor bug fixes, mostly related to the MS Windows implementation.
1083 
 
1084 
<h3><a name="V3.68p4_Documentation"></a>Documentation</h3><pre>
1085 
Further updates various doc files to make them more useful to new users.
1086 
(NEWS, README, current.doc, helpers.doc, new-user.doc)
1087 
 
1088 
Adds user-contributed documentation for ps2pdf.  (ps2pdf.doc, unix-end.mak)
1089 
 
1090 
Documents a bug in the Borland C++ 4.52 compiler, and where to find the
1091 
patch for it.  (make.doc)
1092 
 
1093 
</pre><h3><a name="V3.68p4_Procedures"></a>Procedures</h3><pre>
1094 
 
1095 
Fixes bugs:
1096 
	- A command line exceeded the MS-DOS 120 character limit.
1097 
(devs.mak)
1098 
 
1099 
A file was accidentally omitted from the fileset.  (wmakebat.bat)
1100 
 
1101 
</pre><h3><a name="V3.68p4_Drivers"></a>Drivers</h3><pre>
1102 
 
1103 
Fixes bugs:
1104 
	- Many of the 'show' operators didn't work properly if the PDF
1105 
writer was included in the configuration.  (gs_pdfwr.ps)
1106 
	- x_wrap_get_bits was ridiculously slow.  (It still is, but not
1107 
quite as ridiculously.)  (gxcindex.h, gdevxalt.c)
1108 
	- The PDF writer generated CR instead of CalRGB, which is legal per
1109 
the Adobe spec but not compatible with some Adobe Acrobat products.
1110 
(gdevpdfi.c)
1111 
	- Some signed/unsigned discrepancies caused compilation warnings.
1112 
(gdevpdfm.c, gdevpdfp.c, gdevpdft.c)
1113 
 
1114 
Fixes bugs in the Windows driver:
1115 
	- An accidentally opened tiny window didn't get closed.
1116 
(gdevwdib.c)
1117 
	- The name DllInit was misleading, and this procedure wasn't being
1118 
called whtn the DLL was loaded, so the DLL couldn't know the instance
1119 
handle.  (gp_mswin.c)
1120 
	- The code didn't recognize Win32s (vs. Windows 95) correctly.
1121 
(dwmain.cpp, gdevwdib.c, gp_mswin.h, gp_mswin.c, gsdll16.rc)
1122 
	- Some compiler warnings needed fixing.  (gdevwdib.c)
1123 
	- gsdll16.def and gsdll32.def were different.  (gsdll32.def)
1124 
	- A GPF leaving the 16-bit DLL loaded could make the DLL permanently
1125 
unusable.  (dwmain.cpp)
1126 
	- Two obsolete files were still included in the fileset.
1127 
(gswin.def, gswin32.def)
1128 
 
1129 
Adds a compile-time option to the 'bit' drivers to expand 4-bit pixels to
1130 
32-bit.  This was required for tracking down customer problems, because the
1131 
only tools we have available for displaying CMYK images require 32 bits per
1132 
pixel.  (gdevbit.c)
1133 
 
1134 
</pre><h3><a name="V3.68p4_Platforms"></a>Platforms</h3><pre>
1135 
 
1136 
Fixes bugs:
1137 
	- In DEC C, &lt;time.h&gt; does define the timeval struct.  (time_.h)
1138 
 
1139 
Changes gsdll_init() to take an additional argument, a window handle.  This
1140 
is a NON-BACKWARD-COMPATIBLE change.  (dll.doc, dwdll.h, gsdll.h, dwdll.cpp,
1141 
dwmain.cpp, dwmainc.cpp, gsdll.c)
1142 
 
1143 
</pre><h3><a name="V3.68p4_Fonts"></a>Fonts</h3><pre>
1144 
 
1145 
Updates more Fontmaps to include the new URW++ fonts.  (Fontmap.OS2,
1146 
Fontmap.ATM)
1147 
 
1148 
</pre><h3><a name="V3.68p4_Interpreter"></a>Interpreter</h3><pre>
1149 
 
1150 
Fixes bugs:
1151 
	- The default operator array table wasn't big enough.  (iinit.c)
1152 
	- Some signed/unsigned discrepancies caused compilation warnings.
1153 
(imain.c, imainarg.c, zfile.c)
1154 
 
1155 
Adds encoding vectors for Windows 3.1 Latin 1, Latin 2, and Latin 5
1156 
encodings.  None of these are loaded in the standard configuration.
1157 
(gs_wl{1,2,5}_e.ps)
1158 
 
1159 
</pre><h3><a name="V3.68p4_Library"></a>Library</h3><pre>
1160 
 
1161 
Fixes bugs:
1162 
	- Some tracing output was incorrect or missing.  (gxdither.c)
1163 
	- Resized objects in the C heap had incorrect bookkeeping
1164 
information (bug introduced in 3.68).  (gsmemory.c)
1165 
	- Image pixels that fell exactly on device half-pixel boundaries
1166 
could get discarded.  (gximage0.c)
1167 
	- The bounding box device didn't set a variable properly and didn't
1168 
implement end_image, leading to invalid memory accesses.  (gdevbbox.c)
1169 
	- Fonts with BuildChar routines written in C didn't work properly
1170 
with kshow or xyshow.  (gschar.c)
1171 
 
1172 
Adds some additional tracing output for Patterns.  (gxpcmap.c)
1173 
 
1174 
Adds tracing output for freeing malloc'ed blocks at the end of execution.
1175 
(gsmemory.c)
1176 
 
1177 
Adds a gs_dashpath procedure that expands dashes in the same way that
1178 
gs_flattenpath expands curves.  (gspath.h, gspath1.c)
1179 
 
1180 
</pre>
1181 
 
1182 
<h2><a name="Version3.68p3"></a>Version 3.68 patch 3 (5/17/96)</h2>
1183 
 
1184 
<p>
1185 
More bug fixes during the beta test period.  AccurateScreens now works
1186 
properly.
1187 
 
1188 
<h3><a name="V3.68p3_Procedures"></a>Procedures</h3><pre>
1189 
Fixes bugs:
1190 
	- The help message was too long to fit on a PC screen or standard
1191 
terminal.  (imainarg.c)
1192 
	- Failure to run tar_cat wasn't detected.  (unix-end.mak,
1193 
unixtail.mak)
1194 
 
1195 
</pre><h3><a name="V3.68p3_Utilities"></a>Utilities</h3><pre>
1196 
Fixes bugs:
1197 
	- In the PostScript files produced by pdf2ps, images using ASCII85
1198 
encoding would cause a typecheck error.  (gs_pdf.ps)
1199 
	- pdf2ps wrote out strings longer than 200 characters incorrectly.
1200 
(pdf_2ps.ps)
1201 
 
1202 
</pre><h3><a name="V3.68p3_Drivers"></a>Drivers</h3><pre>
1203 
 
1204 
Fixes bugs in gdevcdj.c (according to the author, we have no way to test
1205 
this):
1206 
	- The driver used to use Colors as well as ProcessColorModel to
1207 
define the process color model.  (devices.doc, gdevbjc.h, gdevcdj.c)
1208 
	- Incorrect or inconsistent settings of BitsPerPixel and
1209 
ProcessColorModel, or setting one but not the other, could leave the driver
1210 
in an inconsistent state.  (gdevcdj.c)
1211 
 
1212 
Fixes bugs in the MS Windows driver:
1213 
	- Insufficient memory for the backing bitmap could cause a GPF.
1214 
(gdevmswn.c, gdevwdib.c)
1215 
	- Invalid parameters could cause a crash within the DLL code.
1216 
(gdevwdib.c)
1217 
 
1218 
Adds a user-contributed driver for the CalComp Raster Format.  (devs.mak,
1219 
gdevccr.c)
1220 
 
1221 
Adds an anti-aliasing option for MS Windows.  (gdevmswn.c, gdevwdib.c)
1222 
 
1223 
</pre><h3><a name="V3.68p3_Platforms"></a>Platforms</h3><pre>
1224 
 
1225 
Fixes bugs in the Windows platform:
1226 
	- One had to type "quit" twice to exit.  (dwdll.h, dwdll.cpp)
1227 
 
1228 
</pre><h3><a name="V3.68p3_Interpreter"></a>Interpreter</h3><pre>
1229 
 
1230 
Fixes bugs:
1231 
	- Platform fonts didn't work properly if the document's primary
1232 
encoding was the standard MS Windows encoding.  (ifont.h, gs_wan_e.ps)
1233 
	- stringwidth with a Type 1 font could give a spurious typecheck
1234 
error (bug introduced in 3.65).  (zcharout.c)
1235 
	- If a DOS editor added a ^Z to the end of the Fontmap file, an
1236 
error occurred during initialization.  (gs_fonts.ps)
1237 
	- Halftones that didn't specify a value for AccurateScreens
1238 
sometimes ignored the setting of the AccurateScreens user parameter.
1239 
(zht2.c)
1240 
 
1241 
</pre><h3><a name="V3.68p3_Library"></a>Library</h3><pre>
1242 
 
1243 
Fixes bugs:
1244 
	- gs_join_none was defined, but not implemented.  (gxstroke.c)
1245 
	- A bookkeeping list for fonts could get confused, causing invalid
1246 
memory accesses.  (gsfont.c)
1247 
	- An I/O error or internal error would cause the band list
1248 
rasterizer to go into an infinite loop.  (gxclread.c)
1249 
	- The algorithm for choosing screen angles and frequencies produced
1250 
poor results.  (gshtscr.c)
1251 
	- Color screens were broken (bug introduced in 3.68).  (gxdht.h,
1252 
gzht.h, gsht.c, gshtscr.c)
1253 
 
1254 
</pre>
1255 
 
1256 
<h2><a name="Version3.68p2"></a>Version 3.68 patch 2 (5/13/96)</h2>
1257 
 
1258 
<p>
1259 
This is another set of patches for the next general release.
1260 
 
1261 
<h3><a name="V3.68p2_Documentation"></a>Documentation</h3><pre>
1262 
Fixes bugs:
1263 
	- Windows NT and Windows 95 implementations were identified as
1264 
"under development" rather than available.  (README)
1265 
	- There were several other minor errors in the README file.
1266 
(README)
1267 
	- The claimed current IJG JPEG version was incorrect.  (jpeg.mak)
1268 
 
1269 
Splits off information for new users into a separate file.  (README,
1270 
new-user.doc)
1271 
 
1272 
</pre><h3><a name="V3.68p2_Procedures"></a>Procedures</h3><pre>
1273 
 
1274 
Fixes bugs:
1275 
	- gettimeofday takes 2 arguments on SVR4 systems more recent than
1276 
SVR4.0.  (make.doc, ansihead.mak, cc-head.mak, gcc-head.mak, time_.h)
1277 
 
1278 
Changes the default Unix data installation directory from /usr/local/lib to
1279 
/usr/local/share, which seems to be favored by more recent Unix systems
1280 
(except for some Linux versions, which still use /usr/local/lib, and BSD/OS,
1281 
which puts Ghostscript in /usr/contrib/lib.)  (ansihead.mak, cc-head.mak,
1282 
gcc-head.mak, ugcclib.mak)
1283 
 
1284 
Changes the unset commands in the Unix script to assignments, because a few
1285 
older Unix shells don't provide unset.  (unixtail.mak)
1286 
 
1287 
</pre><h3><a name="V3.68p2_Drivers"></a>Drivers</h3><pre>
1288 
 
1289 
Fixes bugs:
1290 
	- An #include incorrectly referred directly to a system header.
1291 
(gdevpdft.c)
1292 
	- CMYK devices took an excessive amount of time clearing the page to
1293 
white.  (gdevm32.c)
1294 
 
1295 
Adds a compile-time option to the 'bit' drivers to remove top and bottom
1296 
whitespace.  This change was required in order to track down a customer bug.
1297 
(gdevbit.c)
1298 
 
1299 
</pre><h3><a name="V3.68p2_Interpreter"></a>Interpreter</h3><pre>
1300 
 
1301 
Updates the interpreter for the split in the gstate API.  (igstate.h)
1302 
 
1303 
</pre><h3><a name="V3.68p2_Streams"></a>Streams</h3><pre>
1304 
 
1305 
Fixes bugs:
1306 
	- Some compilers don't define NULL widely enough.  (spngp.c)
1307 
 
1308 
</pre><h3><a name="V3.68p2_Library"></a>Library</h3><pre>
1309 
 
1310 
Fixes bugs:
1311 
	- There was a minor typo (&amp; for &amp;&amp;) that didn't affect execution.
1312 
(gxccman.c)
1313 
	- There was a trailing comma in an enumeration.  (gsiparam.h)
1314 
	- Internal and public interfaces weren't separated properly.  THIS
1315 
IS A NON-BACKWARD-COMPATIBLE CHANGE for clients using certain undocumented
1316 
interfaces to the graphics state.  (gsstate.h, gxstate.h, gzstate.h,
1317 
gsstate.c)
1318 
	- A 'private' declaration was missing (yet again).  (gxclimag.c)
1319 
 
1320 
</pre>
1321 
 
1322 
<h2><a name="Version3.68p1"></a>Version 3.68 patch 1 (5/10/96)</h2>
1323 
 
1324 
<p>
1325 
This is the first bug fix (patch) incremental release for the next
1326 
general release.
1327 
 
1328 
<h3><a name="V3.68p1_Procedures"></a>Procedures</h3><pre>
1329 
Fixes bugs:
1330 
	- Many Windows-specific files were omitted from the previous
1331 
fileset: dw*.rc, dw*.cpp.
1332 
 
1333 
</pre>
1334 
 
1335 
<h2><a name="Version3.68"></a>Version 3.68 (limited) (5/9/96)</h2>
1336 
 
1337 
<p>
1338 
This release cleans up the new Windows files, mostly implements the
1339 
high-level driver API for bitmap images, and adds practical strip
1340 
(AccurateScreens) halftoning.  This is the first "serious beta" fileset for
1341 
the next general release.  It still has more problems than I would have
1342 
liked.
1343 
 
1344 
<h3><a name="V3.68_Documentation"></a>Documentation</h3><pre>
1345 
Fixes bugs:
1346 
	- The names of the executable files for MS Windows were out of date.
1347 
(make.doc)
1348 
	- gxcindex.h still referred to "drawing color".  (gxcindex.h)
1349 
	- The name of the default font directory for Unix systems was
1350 
incorrect.  (make.doc)
1351 
 
1352 
Moves the list of files required for installation, and some other
1353 
installation instructions, from make.doc to install.doc.  (install.doc,
1354 
make.doc)
1355 
 
1356 
Adds a description of the PNGPredictor filters.  (language.doc)
1357 
 
1358 
Updates the documentation of the higher-level driver procedures to match the
1359 
specification changes.  (drivers.doc)
1360 
 
1361 
Documents the change in the Watcom build procedure.  (make.doc)
1362 
 
1363 
Improves the documentation of bitmap IDs.  (gxbitmap.h)
1364 
 
1365 
Adds documentation for the new strip_tile_rectangle and strip_copy_rop
1366 
driver procedures.  (drivers.doc)
1367 
 
1368 
Changes the few remaining direct FTP addresses in README to URLs.  (README)
1369 
 
1370 
Notes that zlib does not compile correctly on IRIX 6.n with optimization.
1371 
(make.doc)
1372 
 
1373 
Adds references to PDF and TrueType fonts to language.doc.  (language.doc)
1374 
 
1375 
Updates fonts.doc to remove references to fonts.mak.  (fonts.doc)
1376 
 
1377 
Describes how to substitute an LZW compressor for the LZW-compatible
1378 
compressor provided in the standard release.  (make.doc)
1379 
 
1380 
</pre><h3><a name="V3.68_Procedures"></a>Procedures</h3><pre>
1381 
 
1382 
Fixes bugs:
1383 
	- Some lines had exceeded the 120-character limit of the
1384 
MS-DOS shell.  (int.mak)
1385 
	- The configuration files weren't generated correctly when CONFIG
1386 
wasn't an empty string.  (unixhead.mak)
1387 
 
1388 
Factors out shared DLL makefile rules into a new file.  (bcwin.mak,
1389 
bcwin32.mak, dwcommon.mak)
1390 
 
1391 
Makes the cp and rm commands into makefile parameters, allowing automatic
1392 
generation of build scripts even in the MS-DOS and MS Windows environments
1393 
where the shell requires the CALL command for sub-scripts.  (*.mak,
1394 
genconf.c)
1395 
 
1396 
Adds the PDF writer to the default Unix configurations.  (ansihead.mak,
1397 
cc-head.mak, gcc-head.mak)
1398 
 
1399 
Adds TrueType support to all Level 2 configurations.  (int.mak)
1400 
 
1401 
Removes fonts.mak, which is no longer relevant.  (fonts.mak)
1402 
 
1403 
Brings the font compilation procedures up to date.  (cfonts.mak, int.mak)
1404 
 
1405 
</pre><h3><a name="V3.68_Utilities"></a>Utilities</h3><pre>
1406 
 
1407 
Fixes bugs:
1408 
	- There was an extra 'show' in one file.  (align.ps)
1409 
 
1410 
</pre><h3><a name="V3.68_Drivers"></a>Drivers</h3><pre>
1411 
 
1412 
Fixes bugs:
1413 
	- The bit devices were missing the map_color_rgb procedure.
1414 
(gdevbit.c)
1415 
	- The MS Windows driver sent a redundant message. (gdevmswn.c)
1416 
 
1417 
Adds a device that keeps track of the page bounding box.  This device is not
1418 
included in any standard configuration.  (drivers.doc, gdevbbox.h,
1419 
gsmatrix.h, gsstruct.h, gxdevice.h, gdevbbox.c, gdevnfwd.c, gsmatrix.c)
1420 
 
1421 
Updates the PDF writer to track the changes in the high-level driver API,
1422 
and to write out images in a reasonable way.  NOTE: the current
1423 
implementation doesn't write out CIE color space parameters, so CIE-color
1424 
images won't be colored accurately.  (gdevpdf.c, gdevpdfi.c)
1425 
 
1426 
Adds a forwarding procedure for tile_rectangle.  (gxdevice.h, gdevnfwd.c)
1427 
 
1428 
Changes the copyright notices on the PDF writer to be the same as on the
1429 
rest of Ghostscript.  (gdevpdf*.[ch])
1430 
 
1431 
Updates Gunther Hess's Epson Stylus Color driver from 1.21 to 1.90.  (Aladdin
1432 
Enterprises takes no responsibility for this driver: if you have questions,
1433 
contact the author.)  (devices.doc, devs.mak, gdevstc*.c, gdevstc.h)
1434 
 
1435 
</pre><h3><a name="V3.68_Platforms"></a>Platforms</h3><pre>
1436 
 
1437 
Removes some obsolete MS Windows files and #defines.  (gp_mswtx.h,
1438 
gp_mswtx.c, gp_mswin.h)
1439 
 
1440 
Works around a memory limitation in the Watcom make utility.  (wmakebat.bat)
1441 
 
1442 
</pre><h3><a name="V3.68_Fonts"></a>Fonts</h3><pre>
1443 
 
1444 
Changes the standard Fontmap from using the low-quality fonts converted from
1445 
bitmaps to using high-quality fonts recently contributed by URW++.
1446 
(Fontmap, Fontmap.GS)
1447 
 
1448 
</pre><h3><a name="V3.68_Interpreter"></a>Interpreter</h3><pre>
1449 
 
1450 
Fixes bugs:
1451 
	- A macro containing an if-else, and a macro generating a compound
1452 
statement, could cause incorrect grouping of 'if' statements.  (files.h,
1453 
ostack.h)
1454 
	- .setrasterop didn't pop its operand.  (zrop.c)
1455 
	- A rounding inaccuracy could cause bounding box rangecheck errors.
1456 
(gsdps1.c)
1457 
	- CIE-based images in PDF files didn't work.  (gs_pdf.ps)
1458 
	- The page parameter .MediaSize didn't get updated when PageSize was
1459 
set.  (This is just the most recent manifestation of the setpagedevice
1460 
morass.)  (gs_setpd.ps)
1461 
	- %lineedit and %statementedit were limited to 160 characters.
1462 
(zfileio.c, ziodev.c)
1463 
	- Compiled initialization files didn't work properly.  (geninit.c,
1464 
gs_l2img.ps)
1465 
	- Attempting to parse a command line with argc = 0 caused a crash.
1466 
(imainarg.c)
1467 
 
1468 
Renames some files to allow separating the non-DLL 'main' procedure into a
1469 
separate file, and to make the file naming more consistent:
1470 
	gs.c (except for 'main') =&gt; imainarg.c
1471 
	gsmain.c =&gt; imain.c
1472 
gs.c now consists only of 'main'.  The name gs.c is still inconsistent (it
1473 
should be i- something), but at least it's consistent with the name of the
1474 
executable.  (*.mak, imain.h, iminst.h, imainarg.h, gs.c, gsmain.c, imain.c,
1475 
imainarg.c)
1476 
 
1477 
Adds PNGPredictorEncode/Decode filters, and increases the size of filterdict
1478 
slightly to make room for them.  (iinit.c, zfpngp.c)
1479 
 
1480 
Makes zwrite external, per a customer request.  (opextern.h, zfileio.c)
1481 
 
1482 
Updates clients to work with the new API-based bitmap imaging calls.
1483 
(iimage.h, zcolor1.c, zimage2.c, zpaint.c)
1484 
 
1485 
Updates clients for the split in gscspace.h.  (zcie.c, zcolor1.c, zcolor2.c,
1486 
zcsindex.c, zcssepr.c, zimage2.c, zpaint.c, zpcolor.c)
1487 
 
1488 
Updates clients for strip-based halftones.  (zpcolor.c)
1489 
 
1490 
Updates the initialization code to pass the correct (system) allocator to
1491 
the library initialization.  (imain.c)
1492 
 
1493 
</pre><h3><a name="V3.68_Streams"></a>Streams</h3><pre>
1494 
 
1495 
Fixes bugs:
1496 
	- If a filter reached EOD exactly at the end of reading data for
1497 
certain operations, it didn't get closed automatically.  (stream.c)
1498 
	- The LZW-compatible encoding filter reset procedure had an
1499 
incorrect return type.  (slzwce.c)
1500 
 
1501 
Changes the ASCIIHexEncode filter to insert \ns in fewer places, to be
1502 
somewhat more compatible with the Adobe implementation.  (sstring.c)
1503 
 
1504 
Adds PNGPredictorEncode/Decode filters that implement the pixel prediction
1505 
algorithms in the PNG specification.  (We'd like to use the code in the PNG
1506 
library, but it's too deeply embedded in the rest of the PNG machinery, and
1507 
it also doesn't provide for suspendable I/O.)  (spngpx.h, spngp.c)
1508 
 
1509 
</pre><h3><a name="V3.68_Library"></a>Library</h3><pre>
1510 
 
1511 
Fixes bugs:
1512 
	- A test for pure color was backwards, causing garbage output or
1513 
possible address or floating point exceptions.  (gxclpath.c)
1514 
	- A macro containing an if-else could cause incorrect grouping of
1515 
'if' statements.  (gsrefct.h)
1516 
	- The default implementation of RasterOp didn't handle the device
1517 
depth correctly.  (gdevmrop.c)
1518 
	- The memory device implementation of RasterOp truncated 24-bit
1519 
constant source or texture values to 8 bits.  (gdevmrop.c)
1520 
	- A typo caused the garbage collector to miss an internal buffer
1521 
used when rendering images.  (gximage.h)
1522 
	- gs_debug_out was only defined if DEBUG was set.  (gdebug.h)
1523 
	- The raster of horizontally replicated tiles was incorrect.
1524 
(gxht.c)
1525 
	- A data type might not be declared, causing a compilation error.
1526 
(gscoord.h)
1527 
	- Empty TrueType glyphs weren't handled properly.  (gstype42.c)
1528 
	- Fonts with a build procedure written in C could cause an invalid
1529 
memory access.  (gschar.c)
1530 
	- The initial point of a band list path sometimes didn't get
1531 
written, causing excess or missing filled regions.  (gxclpath.c)
1532 
	- Characters between 49 and 56 bits wide were rendered incorrectly
1533 
when banding.  (gxclbits.c)
1534 
 
1535 
Renames gsimage*.c as gximage*.c, to reflect more accurately the position of
1536 
these files in the architecture.  (gsimage*.c, gximage*.c)
1537 
 
1538 
Fully implements the high-level bitmap image calls in the driver API.  This
1539 
includes some driver API changes; however, this part of the API was clearly
1540 
documented as not stable enough to rely on.  (gxdevice.h, gximage.h,
1541 
gdevbbox.c, gdevddrw.c, gdevnfwd.c, gsimage.c, gximage*.c)
1542 
 
1543 
Splits the color space header into client and implementation, as with many
1544 
others.  (gscspace.h, gxcspace.h, gximage.h, gscie.c, gscolor.c, gscolor1.c,
1545 
gscolor2.c, gscsepr.c, gsimage.c, gspcolor.c, gsstate.c, gxcmap.c,
1546 
gxpcmap.c)
1547 
 
1548 
Extends band lists to handle high-level images.  NOTE: This facility is
1549 
patched out because there is not yet a way to pass the necessary color
1550 
rendering information through the band list.  (gxcldev.h, gxclist.h,
1551 
gxclpath.h, gxclimag.c, gxclist.c, gxclpath.c, gxclread.c)
1552 
 
1553 
Implements fixed2float and float2fixed more efficiently on machines with
1554 
slow floating point.  (gxfixed.h, gscoord.c, gsmisc.c)
1555 
 
1556 
Makes one further NON-BACKWARD-COMPATIBLE change in the existing
1557 
higher-level driver procedures (fill_path, stroke_path, fill_mask): we make
1558 
the imager state pointer an explicit argument, rather than a member of the
1559 
gx_fill/stroke_params structure.  We now consider the specification of these
1560 
procedures stable, and have removed the "subject to change" notice from the
1561 
documentation.  (gxdevice.h, gxpaint.h, gdevbbox.c, gdevnfwd.c, gxacpath.c,
1562 
gxclpath.c, gxclread.c, gxfill.c, gxpaint.c, gxstroke.c)
1563 
 
1564 
Extends halftone bitmaps to include "strip" and "shift" information,
1565 
allowing halftone cells with arbitrary angles to be stored in space
1566 
proportional to the number of bits in the cell rather than the square of the
1567 
number of bits.  This requires adding new (optional) strip_tile_rectangle
1568 
and strip_copy_rop driver procedures that are like tile_rectangle and
1569 
copy_rop respectively but accept a strip bitmap rather than an ordinary
1570 
tile; these procedures supersede tile_rectangle and copy_rop (although these
1571 
also remain, defined in terms of the new ones).  This also requires making
1572 
small but NON-BACKWARD-COMPATIBLE changes in several internal interfaces.
1573 
(gdevmem.h, gdevprn.h, gsdcolor.h, gxbcache.h, gxbitmap.h, gxcldev.h,
1574 
gxclip2.h, gxclist.h, gxdevice.h, gxdevrop.h, gxdht.h, gxfcache.h,
1575 
gxhttile.h, gxpcolor.h, gzht.h; gdevabuf.c, gdevbbox.c, gdevdflt.c,
1576 
gdevm*.c, gdevmpla.c, gdevmrop.c, gdevnfwd.c, gsht.c, gsht1.c, gshtscr.c,
1577 
gspcolor.c, gsstate.c, gxcht.c, gxclbits.c, gxclip2.c, gxclist.c,
1578 
gxclpath.c, gxclread.c, gxcpath.c, gxdcolor.c, gxdither.c, gxht.c,
1579 
gximage2.c, gxpcmap.c, ...)
1580 
 
1581 
Adds "no join" as a line join type.  NOTE: this is not actually implemented
1582 
yet.  (gslparam.h)
1583 
 
1584 
Changes the initialization code so that it passes the system allocator as an
1585 
argument to module initialization procedures.  While this is theoretically a
1586 
NON-BACKWARD-COMPATIBLE change, module initialization procedures are not
1587 
documented and presumably are not used by any code outside the
1588 
implementation.  (gscdefs.h, gconf.c, gdevmrop.c, gsinit.c, gxclimag.c,
1589 
gxclpath.c)
1590 
 
1591 
Splits up gs_lib_init into two procedures, allowing specification of a
1592 
different default allocator for the library.  (gslib.h, gsinit.c)
1593 
 
1594 
Adds a resize_object operation to the allocator API.  (gsmemory.h,
1595 
gsalloc.c, gsmemory.c)
1596 
 
1597 
</pre>
1598 
 
1599 
<h2><a name="Version3.67"></a>Version 3.67 (limited) (4/12/96)</h2>
1600 
 
1601 
<p>
1602 
This release restructures the MS Windows and OS/2 code to be primarily DLL-
1603 
rather than EXE-based.  See under Platforms below for more news.  This
1604 
release was put out in a hurry in order to get the new DLL code into
1605 
testers' hands; it has more rough edges than usual.
1606 
 
1607 
<h3><a name="V3.67_Documentation"></a>Documentation</h3><pre>
1608 
Fixes bugs:
1609 
	- A definition &amp; use comment was incorrect.  (scanchar.h)
1610 
	- William Bader's e-mail address was wrong.  (README)
1611 
 
1612 
Adds documentation for the new begin_image, image_data, and end_image
1613 
procedures.  THIS INTERFACE IS STILL SUBJECT TO CHANGE.  (drivers.doc)
1614 
 
1615 
</pre><h3><a name="V3.67_Procedures"></a>Procedures</h3><pre>
1616 
 
1617 
Renames all the *core.dev modules as *lib.dev.  (int.mak, *lib.mak, vms.mak,
1618 
gdevmrop.c)
1619 
 
1620 
Updates all the remaining makefiles to IJG JPEG version 6a.  (*.mak)
1621 
 
1622 
Moves the configuration parameter definitions from gconf.c to a new file
1623 
gscdefs.c.  (bcwin*.mak, *lib.mak, gs.mak, int.mak, lib.mak, unixtail.mak,
1624 
vms.mak, gconf.c, gscdefs.c)
1625 
 
1626 
</pre><h3><a name="V3.67_Platforms"></a>Platforms</h3><pre>
1627 
 
1628 
Restructures the MS Windows and OS/2 code to be primarily DLL- rather than
1629 
EXE-based.  This involves two minor NON-BACKWARD-COMPATIBLE changes to the DLL
1630 
interface, documented near the end of dll.doc:
1631 
 
1632 
	- Adding argv and argc as arguments to gsdll_init.
1633 
 
1634 
	- Adding a new message type, GSDLL_POLL, to the callback procedure.
1635 
 
1636 
(bcwin*.mak, devs.mak, os2.mak, dll.doc, install.doc, dw*.*, gsdll*.*,
1637 
gdevms*.*, gdevpm.c, gdevw*.c, gp_mswin.c, gp_os2.c, gsos2.def, gswin.rc)
1638 
 
1639 
Adds the BMP drivers to the Watcom platform.  (watc.mak)
1640 
 
1641 
</pre><h3><a name="V3.67_Interpreter"></a>Interpreter</h3><pre>
1642 
 
1643 
Fixes bugs:
1644 
	- gs.c assumed the presence of stdio.  (gs.c)
1645 
 
1646 
Defines a new API entry point that is the equivalent of command line
1647 
invocation.  (imain.h, imainarg.h, gs.c)
1648 
 
1649 
Changes clients to conform to the changes in gsimage.h.  (zimage2.c,
1650 
zpaint.c)
1651 
 
1652 
Speeds up the search operator slightly.  (zstring.c)
1653 
 
1654 
</pre><h3><a name="V3.67_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
1655 
 
1656 
Fixes bugs:
1657 
	- If the PDF interpreter was present, running a PostScript file
1658 
didn't close the file properly if it caused an error.  (pdf_main.ps)
1659 
 
1660 
Speeds up embedded font loading by making an internal buffer bigger.
1661 
(pdf_font.ps)
1662 
 
1663 
</pre><h3><a name="V3.67_Library"></a>Library</h3><pre>
1664 
 
1665 
Fixes bugs:
1666 
	- There could be some non-zero garbage between the width and the
1667 
next multiple of bitmap_align_mod for copy_alpha.  (The driver API
1668 
specification explicitly allows this, but it upset one customer.)
1669 
(gxccman.c)
1670 
	- Nibble-swapped alpha values could be displaced in memory by one
1671 
pixel, damaging the output.  (gdevabuf.c)
1672 
 
1673 
Makes further changes towards adding high-level bitmap image calls to the
1674 
driver API.  This includes the following minor NON-BACKWARD-COMPATIBLE
1675 
changes to the interface defined in gsimage.h:
1676 
 
1677 
	- changing MultipleDataSources from a member of the gs_image_t
1678 
	structure to an argument of gs_image_init;
1679 
 
1680 
	- changing the default image parameter values from constant
1681 
	structures to procedures that initialize the structure.
1682 
 
1683 
As far as we know, this doesn't affect any existing client code.
1684 
(gsimage.h, gsiparam.h, gxdevice.h, gdevddrw.c, gdevnfwd.c, gsimage.c,
1685 
gspcolor.c, gxccache.c)
1686 
 
1687 
Removes an unnecessary level of call for path filling.  (gxpaint.h,
1688 
gxfill.c, gxpaint.c)
1689 
 
1690 
</pre>
1691 
 
1692 
<h2><a name="Version3.66"></a>Version 3.66 (limited) (4/8/96)</h2>
1693 
 
1694 
<p>
1695 
This release adds support for TrueType fonts and Type 42 (encapsulated
1696 
TrueType) PostScript fonts.  The MS Windows driver now interacts properly
1697 
with the garbage collector.  This release also includes a new, high-quality
1698 
set of free fonts.
1699 
 
1700 
<h3><a name="V3.66_Documentation"></a>Documentation</h3><pre>
1701 
Fixes bugs:
1702 
	- The list of generic makefiles had gotten out of date.  (make.doc)
1703 
 
1704 
Adds a mention of the bmv program, created by a user and available under the
1705 
GPL.  (README)
1706 
 
1707 
Notes that a bug in gcc 2.7.x prevents these versions from compiling
1708 
Ghostscript.  (make.doc)
1709 
 
1710 
Clarifies the meaning of "inverted" masks.  (gsimage.h)
1711 
 
1712 
Improves the documentation of the stack sizing parameters.  (interp.c)
1713 
 
1714 
Improves the documentation of the copy_rop driver procedure.
1715 
(drivers.doc)
1716 
 
1717 
Notes that all subclasses of gx_device must explicitly include the
1718 
device_finalize finalization procedure.  (gxdevice.h)
1719 
 
1720 
Updates the documentation of the high-level driver API to reflect the change
1721 
in gx_drawing_color, and the addition of the new polygon and image drawing
1722 
procedures.  (drivers.doc)
1723 
 
1724 
Updates the documentation for building zlib and libpng.  (make.doc)
1725 
 
1726 
</pre><h3><a name="V3.66_Procedures"></a>Procedures</h3><pre>
1727 
 
1728 
Fixes bugs:
1729 
	- The environment space overflowed on some inferior Unix systems.
1730 
(unixtail.mak)
1731 
 
1732 
Adds a ttfont.dev "feature" for including the TrueType interpreter and the
1733 
ability to handle Type 42 fonts.  A new procedure, .loadttfont, allows
1734 
loading a TrueType font directly (by converting it to a Type 42 on the fly).
1735 
(gs.mak, int.mak, lib.mak)
1736 
 
1737 
Updates the makefiles and procedures to libpng 0.88 and zlib 1.0.
1738 
(libpng.mak, zlib.mak)
1739 
 
1740 
</pre><h3><a name="V3.66_Utilities"></a>Utilities</h3><pre>
1741 
 
1742 
Fixes bugs:
1743 
	- pdf2ps could produce lines longer than 255 characters.
1744 
(pdf_2ps.ps)
1745 
 
1746 
Removes some unnecessary and error-inviting code from pdf2dsc.  (pdf2dsc.ps)
1747 
 
1748 
Updates lines.ps to test the new stroke code more fully.  (lines.ps)
1749 
 
1750 
Allows omitting the second argument of ps2pdf, as for ps2epsi.  (ps2pdf)
1751 
 
1752 
</pre><h3><a name="V3.66_Drivers"></a>Drivers</h3><pre>
1753 
 
1754 
Fixes bugs:
1755 
	- A routine was incorrectly declared "private".  (I wish gcc caught
1756 
this!)  (gdevpdf.c)
1757 
	- A 'const' was omitted in a parameter list.  (gdevpdfp.c)
1758 
	- Some imported procedures didn't have prototypes declared.
1759 
(gdevpdft.c)
1760 
	- The ProcSet list for PDF files didn't include Text when it was
1761 
needed.  (gdevpdfx.h, gdevpdf.c, gdevpdft.c)
1762 
	- Text in PDF output ignored the color setting.  (gs_pdfwr.ps,
1763 
gdevpdft.c)
1764 
	- Text in PDF output could be positioned incorrectly.  (gdevpdft.c)
1765 
	- pdfmarks could produce an error when producing PDF output.
1766 
(gs_pdfwr.ps)
1767 
 
1768 
Slightly improves the text output of the PDF writer.  (gs_pdfwr.ps,
1769 
gdevpdft.c)
1770 
 
1771 
Defines driver procedures for filling trapezoids (with the parallel edges
1772 
parallel to a coordinate axis), parallelograms (with arbitrary orientation),
1773 
triangles (ditto), and minimum-width lines (ditto).  (Note that the last of
1774 
these obsoletes the former draw_line procedure.)  (gdevmem.h, gdevprn.h,
1775 
gxdevice.h, gxdraw.h (deleted), gdevddrw.c, gdevdflt.c, gdevht.c,
1776 
gdevnfwd.c, gsimage[12345].c, gxacpath.c, gxclist.c, gxclip2.c, gxcpath.c,
1777 
gxdraw.c (deleted), gxfill.c, gxpcmap.c, gxstroke.c)
1778 
 
1779 
Adds "sketched" driver procedures for high-level bitmap / pixmap image
1780 
drawing.  In this release, the argument lists are incomplete, and the
1781 
procedures are stubs: don't try to use them!  [see previous entry]
1782 
 
1783 
Changes the screen update strategy for the X Windows driver from a
1784 
compile-time option to a settable run-time variable.  (gdevx.c)
1785 
 
1786 
Patches around a problem with libpng 0.88 that can't be fixed without
1787 
editing a configuration file.  (gdevpng.c)
1788 
 
1789 
</pre><h3><a name="V3.66_Platforms"></a>Platforms</h3><pre>
1790 
 
1791 
Fixes bugs:
1792 
	- %g formats with sscanf don't work on NeXT systems.  (gdevpdft.c,
1793 
iutil.c, zdouble.c)
1794 
	- getenv could be declared inconsistently.  (gp_unix.c)
1795 
 
1796 
</pre><h3><a name="V3.66_Fonts"></a>Fonts</h3><pre>
1797 
 
1798 
Fixes bugs:
1799 
	- The Type 1 font interpreter sometimes set the flatness too large.
1800 
(gstype1.c)
1801 
	- Fonts defined by definefont could never be garbage collected.
1802 
(gsstruct.h, gxfcache.h, gxfont.h, gxfont0.h, gxfont1.h, gsfont.c,
1803 
gsfont0.c)
1804 
	- Type 0 fonts weren't garbage collected properly.  (gsfont0.c)
1805 
	- Compiled fonts caused a compilation error (bug introduced in
1806 
3.65).  (ifont.h)
1807 
	- If a Type 1 font used hint replacement, hints could be applied
1808 
more than once, distorting the character shape.  (gxtype1.h, gxhint3.c)
1809 
	- Oversampling wasn't applied to large enough characters.
1810 
(gschar.c)
1811 
 
1812 
</pre><h3><a name="V3.66_Interpreter"></a>Interpreter</h3><pre>
1813 
 
1814 
Fixes bugs:
1815 
	- The scanner accepted /[, /], /&lt;&lt;, and /&gt;&gt; as literal names (and
1816 
similarly for //).  It isn't obvious from the Red Book, but the Adobe
1817 
implementations don't accept these.  What a nuisance!  (gs_btokn.ps,
1818 
gs_init.ps, pdf_2ps.ps, pdf_base.ps, pdf_main.ps, iscan.c)
1819 
	- A spurious stackoverflow could occur under unusual conditions.
1820 
(istack.c)
1821 
	- The values of OrigFont and ScaleMatrix in scaled fonts reflected
1822 
only the most recent scaling operation, not the original font and the
1823 
combined scaling operation.  (zfont.c)
1824 
	- The default size of systemdict had become slightly too small.
1825 
(iinit.c)
1826 
	- Type 1 characters defined by PostScript procedures were called
1827 
incorrectly.  (zcharout.c)
1828 
 
1829 
Removes the papersize operator from statusdict, since it is not documented
1830 
anywhere in the Adobe literature and didn't interact properly with the
1831 
various ways of setting the page size.  (gs_statd.ps)
1832 
 
1833 
Changes the one client of sskip to match the changed API.  (zpaint.c)
1834 
 
1835 
Changes clients to reflect the creation of sstring.h.  (iscan.h, zfilter.c)
1836 
 
1837 
Adds PSStringEncode as an accessible filter.  (zfilter.c)
1838 
 
1839 
Adds support for TrueType and Type 42 fonts.  (gs_fonts.ps, gs_ttf.ps,
1840 
gs_typ42.ps, bfont.h, icharout.h, ifont.h, zchar1.c, zchar42.c, zcharout.c,
1841 
zfont1.c, zfont2.c, zfont42.c)
1842 
 
1843 
Adds a few ANSI sheet sizes (commented out, for documentation only).
1844 
(gs_statd.ps)
1845 
 
1846 
</pre><h3><a name="V3.66_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
1847 
 
1848 
Fixes bugs:
1849 
	- Clients who called pdfopen/close rather than runpdf could get an
1850 
error (PSLevel1 undefined).  (pdf_main.ps)
1851 
	- Some masked images were displayed with black and white inverted.
1852 
(gs_pdf.ps)
1853 
	- In Level 1 output produced by pdf2ps, images caused a syntaxerror.
1854 
(gs_pdf.ps)
1855 
	- If a PDF file had multiple xref sections and later sections added
1856 
new objects, an error occurred.  (pdf_main.ps)
1857 
	- Some very old Level 1 interpreters couldn't deal with a file
1858 
object embedded in a procedure.  (gs_pdf.ps)
1859 
 
1860 
</pre><h3><a name="V3.66_Streams"></a>Streams</h3><pre>
1861 
 
1862 
Fixes bugs:
1863 
	- The PSStringEncode filter didn't always produce printable 7-bit
1864 
output.  (sstring.c)
1865 
	- The CCITTFaxDecode filter didn't implement DamagedRowsBeforeError.
1866 
(scfx.h, scfd.c)
1867 
	- Interpolated images displayed nothing if the data stream ended
1868 
before the image height was reached.  (siscale.h, gsimage5.c, siscale.c)
1869 
 
1870 
Changes the sskip stream procedure so that it takes an additional argument
1871 
where it returns the actual number of bytes skipped.  THIS IS A
1872 
NON-BACKWARD-COMPATIBLE CHANGE in the API.  However, as far as we know,
1873 
there are no external clients of this procedure.  (stream.h, stream.c)
1874 
 
1875 
Splits up sfilter.h so that the headers correspond more directly with the
1876 
implementations.  (sfilter.h, sstring.h, sstring.c)
1877 
 
1878 
</pre><h3><a name="V3.66_Library"></a>Library</h3><pre>
1879 
 
1880 
Fixes bugs:
1881 
	- The default device in the library configuration was device 1, not
1882 
device 0.  (bclib.mak, ugcclib.mak, watclib.mak, gslib.c)
1883 
	- Patterns could be rendered with small gaps between them.
1884 
(gspcolor.c)
1885 
	- Large characters could render inaccurately because of a numerical
1886 
boundary condition.  (gxpcopy.c)
1887 
	- The show_gstate pointer in the graphics state was not managed
1888 
properly, possibly leading to dangling pointers or GC errors.  (gsstate.c)
1889 
	- Bitmaps could get shifted to the left if ALPHA_LSB_FIRST was
1890 
selected (bug introduced in 3.53).  (gsbitops.c)
1891 
	- The garbage collector could move devices in memory, causing
1892 
problems with command list devices.  (gxdevice.h, gsdevice.c)
1893 
 
1894 
Continues restructuring the image handling code in preparation for adding a
1895 
high-level driver operation.  (gsimage[12345].c)
1896 
 
1897 
Starts to implement passing color mapping information (transfer function,
1898 
black generation, undercolor removal, CRD, halftoning) in the band list.
1899 
(gxfmap.h, gscolor.c, gscolor1.c, gsht1.c, gsstate.c)
1900 
 
1901 
Speeds up the path filling code a little more.  (gxdraw.c)
1902 
 
1903 
Removes the workaround for the gcc 2.7.0/1/2 optimizer bug, since this
1904 
turned out to cause more trouble than it was worth.  (stdpre.h)
1905 
 
1906 
Speeds up stroking dramatically for the case of butt or square caps, bevel
1907 
or beveled miter joins, and no fill adjustment, by filling parallelograms
1908 
and triangles directly rather than constructing and filling paths.  This is
1909 
an important common case for CAD drawings.  (gxdraw.h, gxdraw.c, gxstroke.c)
1910 
 
1911 
Adds support for TrueType and Type 42 fonts.  (gxfont.h, gxfont42.h,
1912 
gstype42.c)
1913 
 
1914 
Extends the memory manager to allow allocating objects that the garbage
1915 
collector won't move.  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE for
1916 
implementors of memory managers, but clients aren't supposed to have any of
1917 
these.  (gsmemory.h, gsmemory.c, gsalloc.c)
1918 
 
1919 
Makes dynamically created instances of registered devices immovable.
1920 
(gsdevice.c)
1921 
 
1922 
Unifies gx_drawing_color with (makes it equivalent to) gx_device_color.
1923 
THIS IS A NON-BACKWARD-COMPATIBLE CHANGE for implementors of the
1924 
higher-level driver procedures (fill_path, stroke_path, fill_mask).  We
1925 
regret that this was necessary, but the documentation in drivers.doc does
1926 
warn the reader: "DO NOT ASSUME THESE OPERATIONS WILL REMAIN UNCHANGED IN
1927 
FUTURE RELEASES."  These three procedures, at least, should now be stable.
1928 
(gsdcolor.h, gxcindex.h, gxdcolor.h, gxdevice.h, gximage.h, gxpaint.h,
1929 
gxpcolor.h, gdevdflt.c, gdevpdf.c, gdevpdfi.c, gdevxalt.c, gsimage.c,
1930 
gsimage2.c, gspcolor.c, gxacpath.c, gxccache.c, gxcht.c, gxclpath.c,
1931 
gxclread.c, gxdcconv.c, gxdither.c, gxfill.c, gxdraw.c, gxht.c, gxpaint.c,
1932 
gxpcmap.c, gxstroke.c)
1933 
 
1934 
</pre>
1935 
 
1936 
<h2><a name="Version3.65"></a>Version 3.65 (limited) (3/9/96)</h2>
1937 
 
1938 
<p>
1939 
This release adds garbage collection for device instances.  ****** NOTE:
1940 
Because of changes in memory management, if you are using the MS Windows
1941 
driver (mswin), you must run with -dNOGC.  This is a temporary problem which
1942 
will be fixed before the next beta release.
1943 
 
1944 
<h3><a name="V3.65_Documentation"></a>Documentation</h3><pre>
1945 
Documents the C API equivalent of a -d switch for setting a flag like
1946 
NOPAUSE.  (imain.h)
1947 
 
1948 
Splits off the NEWS entries for versions 3.0 through 3.33 into a new
1949 
file.  (history3.doc)
1950 
 
1951 
Adds a man page for ps2pdf.  (ps2pdf.1)
1952 
 
1953 
Documents the new memory management aspects of device drivers, and corrects
1954 
many other aspects of driver documentation that had become inaccurate.
1955 
(drivers.doc)
1956 
 
1957 
Updates the documentation for the gs_*.ps files.  (psfiles.doc)
1958 
 
1959 
Replaces .type1addpath with .type1execchar.  (language.doc)
1960 
 
1961 
Adds some more documentation on how band lists do read/write switching.
1962 
(gxclist.h)
1963 
 
1964 
Adds a reference to the new Genscript program, a free Ghostscript-based
1965 
replacement for enscript.  (README)
1966 
 
1967 
Notes that no further changes will be accepted for the gdevcdj.c file, which
1968 
has gotten completely out of hand.  (gdevcdj.c).
1969 
 
1970 
Documents the TextAlphaBits and GraphicsAlphaBits device parameters.
1971 
(language.doc)
1972 
 
1973 
</pre><h3><a name="V3.65_Procedures"></a>Procedures</h3><pre>
1974 
Fixes bugs:
1975 
	- gs_pdfwr.ps and pdf2ps.1 weren't installed on Unix systems.
1976 
(unix-end.mak)
1977 
	- The pdf2ps shell script didn't accept any options.  (pdf2ps)
1978 
	- The rule for srle.$(OBJ) incorrectly specified a dependency on
1979 
srld.c.  (lib.mak)
1980 
	- The rule for command lists didn't include stream.$(OBJ).
1981 
(lib.mak)
1982 
	- The stack size for one configuration was set too small.
1983 
(watclib.mak)
1984 
 
1985 
Speeds up genconf by eliminating redundant file reading and processing.
1986 
(genconf.c)
1987 
 
1988 
Moves the pixel-difference filters from int.mak to lib.mak.  (int.mak,
1989 
lib.mak)
1990 
 
1991 
Moves the library parts of the HSB color and Level 1 path (arcs, pathbbox,
1992 
path enumeration) options from int.mak to lib.mak, and adds them to the
1993 
library makefiles.  (int.mak, lib.mak; bclib.mak. ugcclib.mak, watclib.mak)
1994 
 
1995 
</pre><h3><a name="V3.65_Utilities"></a>Utilities</h3><pre>
1996 
 
1997 
Fixes bugs:
1998 
	- pdf2ps would fail if it encountered a font with a standard
1999 
encoding.  (pdf_2ps.ps)
2000 
 
2001 
Adds new switches to pdf2ps:
2002 
	-dPSBinaryOK allows writing binary image data in the output.
2003 
(pdf_2ps.ps)
2004 
	-dPSLevel1 forces Level 1 compatible output.  (int.mak,
2005 
unix-end.mak, gs_l2img.ps, gs_pdf.ps, pdf_2ps.ps, pdf_main.ps)
2006 
	-dPSNoProcSet causes the ProcSet to be loaded at run time, not at
2007 
conversion time -- primarily useful for debugging.  (pdf_2ps.ps)
2008 
 
2009 
Adds a utility for viewing PCX files, so we can preview high-resolution
2010 
output in a reasonable compressed format.  (unix-end.mak, viewpcx.ps)
2011 
 
2012 
</pre><h3><a name="V3.65_Drivers"></a>Drivers</h3><pre>
2013 
 
2014 
Fixes bugs:
2015 
	- Some compilers require an extra #include to define structures even
2016 
if they are only referenced by pointers.  (int.mak, gdevpdf.c, gdevpdfp.c)
2017 
	- A procedure name was duplicated.  (gdevpdfi.c)
2018 
	- A pdfmark between a gsave and a grestore could cause a
2019 
rangecheck error.  (gdevpdfp.c)
2020 
	- A pdfmark between a gsave and a grestore could cause the
2021 
grestore to do an inappropriate initgraphics.  (gs_pdfwr.ps)
2022 
	- The pdfwrite driver could reinitialize the output file
2023 
unpredictably.  (gdevpdfp.c)
2024 
	- The PCX drivers didn't clear padding bytes at the ends of scan
2025 
lines.  (gdevpcx.c)
2026 
	- The PCX drivers didn't set the "version" field correctly (this was
2027 
OK in 2.6.1, bug introduced sometime since then).  (gdevpcx.c)
2028 
	- Whoever last touched the color inkjet drivers completely broke the
2029 
handling of the BitsPerPixel parameter, again.  We were able to half-fix it,
2030 
but the code is impossible to understand, let alone modify safely.
2031 
(gdevcdj.c)
2032 
	- Anti-aliased characters didn't work with banding.  (gxclpath.c)
2033 
	- The PGM/PPM drivers didn't recognize black-and-white pages for
2034 
optimization to PBM, only gray or colored.  (gdevpbm.c)
2035 
	- The color inkjet drivers initialized the params_size field of the
2036 
static instance incorrectly, resulting in garbage in the last few structure
2037 
members when instances were copied.  (gdevcdj.c)
2038 
	- The 24-bit PCX driver didn't pad each scan line to an even number
2039 
of bytes.  (gdevpcx.c)
2040 
	- The svga16 driver initialized its procedures incorrectly.
2041 
(gdevpcfb.c)
2042 
 
2043 
Adds text writing capability to the PDF writer.  In its present form, this
2044 
is a very bad hack: it only works for the 14 built-in fonts with their
2045 
standard encodings.  (gdevpdfx.h, gdevpdf.c, gdevpdfp.c, gdevpdft.c)
2046 
 
2047 
Adds garbage collection and finalization for device instances (gscdefs.h,
2048 
gsdevice.h, gxdevice.h, gconf.c, gdevmrop.c, gsdevice.c, gslib.c, gsmain.c).
2049 
(See the "Driver instance allocation" section of drivers.doc for more
2050 
details about what is required to make this work.)
2051 
 
2052 
	- When an open device is freed (explicitly, by garbage collection,
2053 
or by 'restore'), if the device was allocated dynamically by Ghostscript's
2054 
standard allocator, the device's close procedure will be called.  THIS IS A
2055 
NON-BACKWARD-COMPATIBLE CHANGE for dynamically created devices, which
2056 
formerly were not closed automatically, even when Ghostscript exited.
2057 
 
2058 
	- Device instances allocated in GC-able space will be traced
2059 
like other objects, assuming they have proper structure descriptors.
2060 
 
2061 
Provides a (very slow but correct) default implementation of copy_alpha.
2062 
(gxcindex.h, gdevdflt.c, gsimage4.c)
2063 
 
2064 
Removes the implementation of copy_alpha in gdevpbm.c, since this is now
2065 
implemented (more efficiently) in gdevm24.c.  (gdevpbm.c)
2066 
 
2067 
Adds TextAlphaBits and GraphicsAlphaBits as readable parameters for all
2068 
devices.  (gsdparam.c, gdevpbm.c, gdevsvga.c)
2069 
 
2070 
</pre><h3><a name="V3.65_Platforms"></a>Platforms</h3><pre>
2071 
 
2072 
Fixes bugs:
2073 
	- There were some attempts to coerce long to short pointers
2074 
on segmented platforms.  (gsdparam.c, gstype1.c)
2075 
	- The stack could overflow on the 16-bit MS Windows platform.
2076 
(gxfill.c, gxclread.c)
2077 
	- The DLL callback parameter for window resize events was computed
2078 
incorrectly on 16-bit systems.  (gdevwdib.c)
2079 
	- A file included gxdevice.h unnecessarily.  (bcwin.mak,
2080 
bcwin32.mak, msvcwint.mak, gp_mswin.c)
2081 
 
2082 
</pre><h3><a name="V3.65_Interpreter"></a>Interpreter</h3><pre>
2083 
 
2084 
Fixes bugs:
2085 
	- Storing into a read-only dictionary with def or store was
2086 
allowed.  (dstack.h)
2087 
	- If the interpreter allocated extra space for a dictionary
2088 
to round its storage size up to a power of 2, it was possible for
2089 
length to exceed maxlength.  (idict.c, iinit.c)
2090 
	- The if and ifelse operators didn't check that their
2091 
'procedure' arguments were actually procedures.  (interp.c, zcontrol.c)
2092 
	- The undef operator was defined even in Level 1
2093 
configurations.  (We need this capability for all configurations, so
2094 
we always define .undef.)  (zdict.c, gs_*.ps, pdf_*.ps)
2095 
	- In Level 1 configurations, copying a dictionary should copy the
2096 
access attributes, but it didn't.  We have to work around this
2097 
compatibility quirk in a lot of places.  (gs_cidfn.ps, gs_cmap.ps,
2098 
gs_dps1.ps, gs_fonts.ps, gs_init.ps, gs_l2img.ps, gs_lev2.ps, gs_pdf.ps,
2099 
gs_pfile.ps, gs_res.ps, gs_setpd.ps, gs_type1.ps, zdict.c)
2100 
	- DSC comments that crossed a buffer boundary didn't call the
2101 
scan_dsc_proc.  (iscan.c)
2102 
	- "statusdict /setpage get exec" caused an error.  (gs_statd.ps)
2103 
	- The default size of systemdict had become slightly too small.
2104 
(iinit.c)
2105 
	- Doing a showpage or copypage would cause the equivalent of a
2106 
setpagedevice at the next restore or grestore.  We aren't entirely sure that
2107 
the fix we made doesn't have bad side-effects.  (gs_setpd.ps)
2108 
	- Not all filters accepted (and ignored) an optional dictionary
2109 
parameter on the stack.  (ifilter.h, zfbcp.c, zfdecode.c, zfilter.c,
2110 
zfilterx.c, zfzlib.c, zmisc1.c)
2111 
	- The PixelDifference filters required a Columns parameter, rather
2112 
than defaulting it to 1.  (spdiffx.h, zfdecode.c)
2113 
	- Contrary to the NEWS entry for release 3.60, the LZW filters did
2114 
not implement pixel differencing.  (zfdecode.c, zfilter2.c)
2115 
	- readstring with a 0-length string didn't signal a rangecheck.
2116 
This doesn't make a lot of sense to me, but it's what the Adobe
2117 
documentation specifies.  Unfortunately, we have to work around this in a
2118 
number of places that assumed the sensible definition (return () true
2119 
without reading anything).  (gs_l2img.ps, pdf_font.ps, zfileio.c)
2120 
	- Encoded number strings didn't work (bug introduced in 3.64).
2121 
(ibnum.c)
2122 
	- The allocator could produce spurious "free large 0x...... chunk
2123 
not found" messages.  (These didn't cause any harm, but they were
2124 
disturbing.)  (gsalloc.c)
2125 
 
2126 
Changes the default transfer function for high-resolution devices so
2127 
that it is the identity function if the device is continuous-tone.
2128 
(gs_init.ps)
2129 
 
2130 
Undoes the "subversion" of zgetdevice noted in release 3.61, since it
2131 
is now possible to copy devices safely.  (zdevice.c)
2132 
 
2133 
Changes the implementation of the garbage collector and restore so that
2134 
object finalization code may safely free objects.  (igc.c, isave.c)
2135 
 
2136 
Reimplements essentially all of Type 1 BuildChar in C.  (gs_init.ps,
2137 
gs_type0.ps (deleted), gs_type1.ps, ifont.h, zchar.c, zchar1.c, zfont.c)
2138 
 
2139 
Reimplements DISKFONTS as a separate feature (diskfont.dev), and changes it
2140 
to use Type 4 fonts rather than special machinery.  Currently this feature
2141 
is included only in the makefiles for 16-bit architectures.  (bc.mak,
2142 
bcwin.mak, int.mak, tc.mak, gs_diskf.ps, gs_fonts.ps, gs_type1.ps)
2143 
 
2144 
Converts the library search path from a list of strings to a (PostScript)
2145 
array of strings, one string per directory.  (iminst.h, main.h, gs.c,
2146 
gsmain.c, zfile.c)
2147 
 
2148 
Adds a hook procedure scan_comment_proc for processing all comments,
2149 
similar to scan_dsc_proc.  If both are set, scan_comment_proc is used only
2150 
for non-DSC comments.  (iscan.h, iscan.c)
2151 
 
2152 
</pre><h3><a name="V3.65_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
2153 
 
2154 
Fixes bugs:
2155 
	- Encrypted PDF files produced a random error (usually ioerror in
2156 
--token--) rather than a meaningful message.  (pdf_main.ps)
2157 
	- Color space setting didn't work.  (gs_pdf.ps)
2158 
	- The algorithm for skipping a possible blank line following the
2159 
'stream' keyword wasn't robust enough.  (We aren't sure the new algorithm is
2160 
exactly right, either.)  (pdf_base.ps)
2161 
 
2162 
Gets rid of the special handling of the LZW decoding filter, since the
2163 
filter itself now handles the Predictor facility.  (pdf_base.ps)
2164 
 
2165 
</pre><h3><a name="V3.65_Streams"></a>Streams</h3><pre>
2166 
 
2167 
Fixes bugs:
2168 
	- Configurations with LZW encoding but not decoding had an
2169 
undefined reference.  (lib.mak, slzwc.c, slzwd.c)
2170 
	- The LZW-compatible encoder didn't provide a 'reset' procedure.
2171 
(slzwce.c)
2172 
	- The PixelDifference filters didn't work for most parameter
2173 
combinations in which each pixel took up more than 1 byte.  (spdiff.c)
2174 
	- Temporary write streams could cause an infinite loop.  (We only
2175 
need such streams for the Predictor = 2 case of LZWEncode: this is why the
2176 
bug never showed up before.)  (stream.c)
2177 
 
2178 
Adds an optional reinitialization procedure to the stream template.  Note
2179 
that this is not the same as the PostScript 'reset' operation or the stream
2180 
resetting operation invoked by sreset: the reinit procedure in the template
2181 
reinitializes any internal state of the encoder or decoder without affecting
2182 
buffered data.  (scommon.h, strimpl.h, sbcp.c, sbhc.c, slzwce.c, slzwd.c,
2183 
slzwe.c, smtf.c, spdiff.c, srle.c) ****** NOT DONE YET: sbwbs.c, szlibd.c,
2184 
szlibe.c
2185 
 
2186 
Adds a decoding stream for the run-length compression used in PCX.
2187 
(spcxx.h, spcxd.c)
2188 
 
2189 
</pre><h3><a name="V3.65_Library"></a>Library</h3><pre>
2190 
 
2191 
Fixes bugs:
2192 
	- A recent edit introduced an extraneous right parenthesis.
2193 
(gpcheck.h)
2194 
	- A minor nit in a macro could cause incorrect grouping of 'if'
2195 
statements under implausible conditions.  (gsmdebug.h)
2196 
	- The first data plane buffer of an image enumerator didn't get
2197 
marked during garbage collection.  (gsimage.c)
2198 
	- The Watcom C compiler required splitting up a declaration.
2199 
(gxcmap.h)
2200 
	- The extern declarations for the tables in gconf.c weren't gathered
2201 
together in one place.  (gscdefs.h, gxiodev.h, gconf.c, gsdevice.c, gslib.c,
2202 
gsinit.c, gsiodev.c)
2203 
	- charpath and show produced different output.  We fixed this by
2204 
undoing a "bug fix", introduced in version 2.9, which suppressed hinting and
2205 
coordinate rounding for charpath; we aren't sure this won't cause some
2206 
obscure problems to reappear.  (gstype1.c)
2207 
	- Clipping with a rectangle usually created a 3-rectangle clipping
2208 
list, slowing down all drawing operations (performance bug only).
2209 
(gxacpath.c)
2210 
	- stroking in a rotated coordinate system sometimes thought lines
2211 
were always thin when they actually weren't.  (gxstroke.c)
2212 
	- An unsigned quantity wasn't properly converted to signed, possibly
2213 
causing band path coordinates to get mangled.  (gxclread.c)
2214 
	- A bug in the Borland compiler caused an unsigned quantity to be
2215 
interpreted as signed, causing band path coordinates to get mangled.
2216 
(gxclread.c)
2217 
 
2218 
Changes structure type pointers on 16-bit segmented systems to full
2219 
32-bit pointers.  This will increase time and space requirements very
2220 
slightly on these systems.  (gsmemory.h, gxobj.h)
2221 
 
2222 
Changes the memory manager so that object finalization code may safely free
2223 
objects.  (gsmemory.h, gsstruct.h, gsalloc.c, gsmemory.c)
2224 
 
2225 
Refactors the Type 1 CharString interpreter so it can be included in
2226 
the imager library.  (gstype1.h, gxtype1.h, gstype1.c)
2227 
 
2228 
Starts to refactor the implementation of band lists in memory so that it can
2229 
use any encoding/decoding filter.  Currently this choice is made at compile
2230 
time, but it could easily be made dynamic.  (gxclmem.h, gxclmem.c)
2231 
 
2232 
Starts to refactor image rendering so that, like path filling and stroking,
2233 
it only uses imager state and can be done after banding.  (gxcmap.h,
2234 
gxdraw.h, gximage.h, gsimage*.c, gxcmap.c)
2235 
 
2236 
Speeds up copy_mono for 2-bit-per-pixel devices a little.  (gdevm2.c)
2237 
 
2238 
Implements an optimized copy_alpha for 24-bit memory devices.  (gdevmem.h,
2239 
gdevm24.c)
2240 
 
2241 
Speeds up filling rectangles significantly.  (gsbitops.c)
2242 
 
2243 
Changes the band list rasterizer to use the memory space of the device
2244 
rather than the C heap: our allocator is considerably faster than malloc.
2245 
(gxclread.c)
2246 
 
2247 
Speeds up stroking a little, especially in 90 degree rotated coordinate
2248 
systems.  (gxstroke.c)
2249 
 
2250 
</pre>
2251 
 
2252 
<h2><a name="Version3.64"></a>Version 3.64 (limited, incremental) (1/27/96)</h2>
2253 
 
2254 
<p>
2255 
This release fixes a few more bugs, including some serious bugs in band
2256 
lists, and adds pdfmark processing to the PDF writer.  The PDF writer is
2257 
still not fit for real use, since it converts all text characters into 720
2258 
dpi bitmaps and turns images into zillions of tiny rectangles (!), but it
2259 
should be producing legal output.
2260 
 
2261 
<h3><a name="V3.64_Documentation"></a>Documentation</h3><pre>
2262 
Fixes bugs:
2263 
	- Frans van Hoesel's e-mail address was incorrect.  (gdevdjet.c)
2264 
	- The man page for ansi2knr was out of date.  (ansi2knr.1)
2265 
	- The description of a procedure was out of date.  (gxdcolor.h)
2266 
 
2267 
Notes that several "optional" features are required in order to obtain the
2268 
full PostScript Level 1 functionality at the library level.  (lib.doc)
2269 
 
2270 
Documents the top-level interpreter API.  (imain.h)
2271 
 
2272 
Adds details on differences between the imager API and the PostScript
2273 
graphics operators.  (lib.doc)
2274 
 
2275 
Notes (here, in NEWS) that the change for device prototypes in 3.61 made the
2276 
protection attributes of a device significant for the first time.  Only the
2277 
writable attribute is significant so far.  (news)
2278 
 
2279 
</pre><h3><a name="V3.64_Procedures"></a>Procedures</h3><pre>
2280 
 
2281 
Fixes bugs:
2282 
	- The .dev rules in the library makefiles didn't list echogs as a
2283 
dependency.  (jpeg.mak, libpng.mak, zlib.mak)
2284 
	- The install rule tried to install gs.1.1 etc. rather than gs.1
2285 
etc.  (unix-end.mak)
2286 
	- The install rule tried to install some nonexistent *.1 files.
2287 
(unix-end.mak)
2288 
 
2289 
Adds 'help' and '?' procedures to assist users who don't read the
2290 
documentation.  (gs_init.ps)
2291 
 
2292 
Adds -A-, -E-, and -Z-... to turn off debugging flags.  (gs.c)
2293 
 
2294 
Adds a -dDELAYBIND switch to delay binding operators, to allow special
2295 
packages like pstotext to redefine them.  (gs_init.ps)
2296 
 
2297 
</pre><h3><a name="V3.64_Utilities"></a>Utilities</h3><pre>
2298 
 
2299 
Fixes bugs:
2300 
	- Fonts produced by rollconv.ps left a couple of items on the
2301 
operand stack, and left array packing set to true.  (rollconv.ps)
2302 
 
2303 
Makes ansi2knr require that the first token after a function header be a
2304 
left brace on the next line, so it can cope with some macros in IJG release
2305 
6a.  Also updates it to work better without the GNU configure machinery, and
2306 
on some old compilers.  (ansi2knr.c)
2307 
 
2308 
Changes align.ps so it can be used directly to determine the margin
2309 
parameters.  (align.ps, psfiles.doc)
2310 
 
2311 
</pre><h3><a name="V3.64_Drivers"></a>Drivers</h3><pre>
2312 
 
2313 
Fixes bugs:
2314 
	- The TIFF/F (G3 and G4) drivers were broken (bug introduced in
2315 
3.60).  (gdevtfax.c)
2316 
	- The PDF writer produced invalid output for 0-width, 0-height
2317 
images.  (gdevpdfi.c)
2318 
	- The PDF writer wasn't a page device.  (gdevpdf.c)
2319 
	- The PDF writer assigned the Contents node rather than the Pages
2320 
node as the Parent of each page.  (gdevpdfx.h, gdevpdf.c)
2321 
 
2322 
Corrects the margin information for the DeskJet printers to be the actual
2323 
values observed on a printer; all of the values in the file were wrong.
2324 
(gdevdjet.c)
2325 
 
2326 
Adds pdfmark recognition and conversion to the PDF writer.  All documented
2327 
pdfmarks (ANN, ARTICLE, DEST, DOCINFO, DOCVIEW, LNK, OUT, PAGE, PAGES, PS)
2328 
are recognized and converted, but some of them are not converted correctly.
2329 
(gs_pdfwr.ps, gdevpdfx.h, gdevpdf.c, gdevpdfm.c)
2330 
 
2331 
Adds recognition of all Distiller parameters, except *ImageDict, to the PDF
2332 
writer.  Currently only ASCII85EncodePages actually has any effect.
2333 
(gs_pdfwr.ps, gdevpdfx.h, gdevpdfp.c)
2334 
 
2335 
Ensures that PDF output files include at least a default Info dictionary.
2336 
(gdevpdf.c)
2337 
 
2338 
Changes the handling of coordinates in PDF output files so that the scale is
2339 
always 72 dpi, and so that each graphics operator is on a line by itself,
2340 
for compatibility with Adobe Illustrator.  (gdevpdfx.h, gdevpdf*.c)
2341 
 
2342 
Adds a driver for ImageMagick's MIFF format.  The driver currently only
2343 
produces 24-bit, direct color, RLE compressed output.  (gdevmiff.c)
2344 
 
2345 
</pre><h3><a name="V3.64_Platforms"></a>Platforms</h3><pre>
2346 
 
2347 
Changes the gp_check_interrupts platform procedure so that instead of just
2348 
returning a Boolean, it can now also return a negative error code.  THIS IS
2349 
(THEORETICALLY) A NON-BACKWARD-COMPATIBLE CHANGE.  However, since all
2350 
implementations of this procedure should only have been returning 0 or 1 up
2351 
to now, no existing code should need to be changed.  (gpcheck.h, gsmisc.c)
2352 
 
2353 
</pre><h3><a name="V3.64_Interpreter"></a>Interpreter</h3><pre>
2354 
 
2355 
Fixes bugs:
2356 
	- devicenames was accidentally deleted.  (gs_init.ps)
2357 
	- -dFAKEFONTS could cause the memory manager to waste a lot of time.
2358 
(gs_dps1.ps)
2359 
	- Using -r or -dFIXEDMEDIA with a non-page device caused an error.
2360 
(gs_init.ps)
2361 
	- A VMS compiler reserves the word "readonly", which was used as a
2362 
parameter name.  (imain.h, gsmain.c)
2363 
	- A garbage collection during the execution of x/y/xyshow with an
2364 
array providing the values could get confused.  (ibnum.h, ichar.h, stream.h,
2365 
ibnum.c, iscanbin.c, zchar.c, zchar2.c, zdps1.c, zupath.c)
2366 
	- Errors in encoded number strings produced a typecheck rather than
2367 
a rangecheck error.  (ibnum.c, zupath.c)
2368 
 
2369 
Updates the DCT filters for IJG release 6a.  (zfdctc.c)
2370 
 
2371 
Provides an API call for getting the real stdio files.  (imain.h,
2372 
gs.c, gsmain.c)
2373 
 
2374 
</pre><h3><a name="V3.64_Streams"></a>Streams</h3><pre>
2375 
 
2376 
Fixes bugs:
2377 
	- If the CCITTFaxEncode stream encountered an output buffer boundary
2378 
while processing the last scan line of input, it could fail to process some
2379 
the scan line.  (scfe.c)
2380 
	- A couple of pointers weren't always initialized, possibly
2381 
confusing the garbage collector.  (stream.c)
2382 
	- The weighting coefficient structures used for image scaling
2383 
weren't declared properly for the garbage collector.  (siscale.h, siscale.c)
2384 
 
2385 
</pre><h3><a name="V3.64_Library"></a>Library</h3><pre>
2386 
 
2387 
Fixes bugs:
2388 
	- Unrotated patterns always used the bounding box size as the step,
2389 
rather than XStep/YStep.  (gspcolor.c)
2390 
	- Alpha computations for graphics could be seriously incorrect (bug
2391 
introduced in 3.6x).  (gdevabuf.c)
2392 
	- The length of the next_data_x command for the fill_mask operation
2393 
was incorrect, causing the band list to become confused (bug introduced in
2394 
3.63).  (gxclpath.c)
2395 
	- An extern was omitted, causing linker warnings.  (gxdevice.h)
2396 
	- RasterOps could cause an invalid access because the palette
2397 
for a memory device wasn't set.  (gdevmrop.c)
2398 
	- gximage.h was included unnecessarily.  (gspaint.c)
2399 
	- Color screens caused a segmentation fault (bug introduced in
2400 
3.6x).  (gxcht.c)
2401 
	- cshow returned the width in an incorrect coordinate system.
2402 
(gscoord.h, gschar.c)
2403 
	- Filling or stroking a path that lay entirely off the page in the
2404 
+X or +Y direction could corrupt memory (bug introduced in 3.6x).
2405 
(gxclpath.c)
2406 
	- When banding, painting characters with halftones produced random
2407 
results (bug introduced in 3.6x).  (gxclpath.c)
2408 
	- When banding, characters could get clipped when they shouldn't be
2409 
(bug introduced in 3.6x).  (gxclpath.c)
2410 
	- The default implementation of fill_mask could discard clipped
2411 
bitmaps (bug introduced in 3.6x).  (gdevdflt.c)
2412 
	- Non-halftoned 24-bit colors could get garbled when banding (bug
2413 
introduced in 3.6x).  (gxclist.c)
2414 
	- When banding, if a stroked path had subpaths that fell entirely
2415 
outside the current band, the rest of the path was drawn in the wrong place
2416 
(bug introduced in 3.6x).  (gxclpath.c)
2417 
 
2418 
Speeds up image interpolation on machines with slow floating point.
2419 
(siscale.h, siscale.c)
2420 
 
2421 
Speeds up interpolated images when using device color spaces.  (gxcvalue.h,
2422 
gxfrac.h, gdevht.c, gxcmap.c, gsimage.c, gsimage3.c)
2423 
 
2424 
Speeds up color mapping a little by removing tests and calls in favor of
2425 
code copying.  (gxcmap.c)
2426 
 
2427 
Implements RasterOp for 24-bit RGB devices.  (gdevm8.c, gdevm24.c,
2428 
gdevmrop.c)
2429 
 
2430 
</pre>
2431 
 
2432 
<h2><a name="Version3.63"></a>Version 3.63 (limited, incremental) (1/14/96)</h2>
2433 
 
2434 
<p>
2435 
This release has the usual collection of bug fixes, and two significant
2436 
additions: AccurateScreens, and the first draft of a PostScript-&gt;PDF
2437 
converter ("distiller").
2438 
 
2439 
<h3><a name="V3.63_Documentation"></a>Documentation</h3><pre>
2440 
Fixes bugs:
2441 
	- Some documentation for pstoppm.ps was out of date.  (psfiles.doc)
2442 
	- Documentation for acctest.ps, view*.ps, and zeroline.ps was
2443 
missing.  (psfiles.doc)
2444 
	- The documentation for rollconv.ps omitted the .CSR file.
2445 
(rollconv.ps)
2446 
 
2447 
Removes an inappropriate RCS Id line.  (gs.1)
2448 
 
2449 
Adds a list of paper sizes to the man page.  (gs.1)
2450 
 
2451 
Suggests that driver authors use parameterization rather than copying when
2452 
possible.  (drivers.doc)
2453 
 
2454 
Adds an announcement of Ghostscript support on CompuServe.  (README)
2455 
 
2456 
Documents the new -dCOLORSCREEN switch and the existing -dDITHERPPI=lpi
2457 
switch.  (use.doc)
2458 
 
2459 
Notes that the OS/2 implementation now requires EMX/GCC 0.9b rather than
2460 
0.9a.  (install.doc)
2461 
 
2462 
Adds some new man pages.  (pdf2ps.1, ps2ascii.1)
2463 
 
2464 
Greatly expands lib.doc.  (lib.doc)
2465 
 
2466 
</pre><h3><a name="V3.63_Procedures"></a>Procedures</h3><pre>
2467 
 
2468 
Fixes bugs:
2469 
	- The pg target for Unix platforms didn't include some necessary
2470 
additional X11 libraries.  (unix-end.mak)
2471 
	- The Unix library makefile didn't define CCAUX or CCLEAF.
2472 
(ugcclib.mak)
2473 
	- Unix systems didn't `install' some .ps files.  (unix-end.mak)
2474 
 
2475 
Extends genconf so that features at the library level can have
2476 
initialization procedures.  (gconf.c, genconf.c, gsinit.c)
2477 
 
2478 
Adds a -dCOLORSCREEN[=false] switch to force enabling or disabling of
2479 
4-color screens.  (gs_init.ps, gs_setpd.ps)
2480 
 
2481 
</pre><h3><a name="V3.63_Utilities"></a>Utilities</h3><pre>
2482 
 
2483 
Fixes bugs:
2484 
	- The prfont utility didn't leave enough of a margin on the left.
2485 
(prfont.ps)
2486 
	- The ps2ascii utility still created files _temp_.out and _temp_.err
2487 
even though they are no longer used.  (ps2ascii.ps)
2488 
	- The acctest.ps file was empty, rather than including a test
2489 
program.  (acctest.ps)
2490 
 
2491 
Adds ps2pdf[.bat] scripts for invoking the new pdfwrite driver.  (ps2pdf,
2492 
ps2pdf.bat, unix-end.mak)
2493 
 
2494 
</pre><h3><a name="V3.63_Drivers"></a>Drivers</h3><pre>
2495 
 
2496 
Fixes bugs:
2497 
	- The x11alpha driver had a patch that suppressed output in many
2498 
cases.  (gdevxalt.c)
2499 
	- The X driver set up a parameter incorrectly in copy_color.
2500 
(gdevx.c)
2501 
	- An explicit cast was needed to handle a 'const' problem.
2502 
(gdevpng.c)
2503 
 
2504 
Adds a pdfwrite driver that creates syntactically correct PDF output.  The
2505 
output is only reasonable for fill/stroke graphics, not for text or images.
2506 
(iscan.h, sa85x.h, sfilter.h, gdevpdf.c, sfilter2.c, zfdecode.c)
2507 
 
2508 
</pre><h3><a name="V3.63_Platforms"></a>Platforms</h3><pre>
2509 
 
2510 
Fixes bugs:
2511 
	- The test for WinExec failure on Win32 was incorrect.  (gp_mswin.c)
2512 
	- getenv was declared redundantly on OS/2.  (gp_os2.c)
2513 
	- gs16spl.c was missing &lt;string.h&gt;.  (gs16spl.c)
2514 
 
2515 
</pre><h3><a name="V3.63_Interpreter"></a>Interpreter</h3><pre>
2516 
 
2517 
Fixes bugs:
2518 
	- Images read data in smaller and smaller increments (performance
2519 
bug only).  (zpaint.c)
2520 
	- Images with MultipleDataSources=true and two or more DataSources
2521 
referencing the same stream could get confused.  (zpaint.c)
2522 
	- Invoking setpagedevice with an undefined key, even with Policy =
2523 
1, caused an error.  (gs_setpd.ps)
2524 
	- IEEE floats in binary tokens or encoded number strings were read
2525 
incorrectly on CPUs that use non-IEEE floating point.  (ibnum.c)
2526 
 
2527 
Adds a 'const' to the second parameter of zimage_setup.  (zimage2.c,
2528 
zpaint.c)
2529 
 
2530 
Encapsulates the filling of free memory blocks in a macro.  (igc.c,
2531 
igcstr.c)
2532 
 
2533 
</pre><h3><a name="V3.63_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
2534 
 
2535 
Fixes bugs:
2536 
	- If the first line of a file began with % but the line was longer
2537 
than 255 characters, an error occurred.  (pdf_main.ps)
2538 
	- Masked images didn't set the color before drawing.  (gs_pdf.ps)
2539 
	- Extraneous blank lines in the trailer or cross-reference region
2540 
caused an error.  (pdf_base.ps, pdf_main.ps)
2541 
 
2542 
</pre><h3><a name="V3.63_Streams"></a>Streams</h3><pre>
2543 
 
2544 
Speeds up image interpolation a little.  Much more could be still be done.
2545 
(siscale.c)
2546 
 
2547 
</pre><h3><a name="V3.63_Library"></a>Library</h3><pre>
2548 
 
2549 
Fixes bugs:
2550 
	- An error in handling a boundary condition could cause a horizontal
2551 
streak of pixels to be turned on or off when it shouldn't be.  (gxfill.c)
2552 
	- The new scan-line-based filling loop could write pixels twice.
2553 
(The old trapezoid-based loop still does write pixels twice.)  (gxfill.c)
2554 
	- For multi-plane images, gs_image_next only sets *pused for the
2555 
last plane; this wasn't documented.  (gsimage.h)
2556 
	- Images with MultipleDataSources=true and two or more DataSources
2557 
referencing the same stream could get confused.  (gsimage.h, gsimage0.c)
2558 
	- 12-bit gray images caused an invalid memory access.  (gsimage.c)
2559 
	- Nearly-zero-thickness lines didn't get filled, because the hack
2560 
that compensates for this peculiarity of the MS Windows PostScript driver
2561 
accidentally got disabled.  (gxfill.c)
2562 
	- Some casts to remove 'const' were omitted.  (gxclread.c)
2563 
	- 1-line-high bitmaps could get written in the band list with an
2564 
inconsistent number of bytes, causing errors when reading.  (gxcldev.h,
2565 
gxclbits.c, gxclist.c, gxclpath.c, gxclread.c)
2566 
	- Isolated dots produced by round caps usually disappeared.  (They
2567 
still disappear sometimes.)  (gxstroke.c)
2568 
	- On 16-bit platforms, the computation of t2 and t3 in
2569 
gx_curve_x_at_y could overflow, leading to incorrect output.  (gxpcopy.c)
2570 
	- Stroking horizontal or vertical lines could produce variations of
2571 
1 pixel in the line width.  (gxstroke.c)
2572 
	- The default clipping region for band rendering was too large,
2573 
leading to wasted work.  (gxclread.c)
2574 
	- Guarantees no double pixel writing when necessary, i.e., when a
2575 
non-idempotent RasterOp is selected.  (gsropt.h, gxfill.c)
2576 
	- For unrotated black-and-white images, one column of pixels at the
2577 
right edge of the image might be incorrect.  (gsimage1.c)
2578 
	- A const pointer was passed inappropriately.  (gxistate.h,
2579 
gscoord.c)
2580 
	- CIE color conversion could address 1 element beyond the end of an
2581 
array, with unpredictable results.  (gscie.c)
2582 
 
2583 
Separates out the higher-level band list facilities, so they can be an
2584 
optional feature.  (lib.mak, gxcldev.h, gxclpath.h, gxclbits.c, gxclist.c,
2585 
gxclpath.c, gxclread.c)
2586 
 
2587 
Implements bitmap (fill_mask) clipping in the band list.  (gxcldev.h,
2588 
gxclpath.h, gxclist.c, gxclpath.c, gxclread.c)
2589 
 
2590 
Starts to separate out the RasterOp facility as an optional feature.
2591 
(lib.mak, gxdevice.h, gxdevrop.h, gdevdflt.c, gdevmrop.c)
2592 
 
2593 
Encapsulates the filling of free memory blocks in a macro, at the request of
2594 
a licensee.  (gdebug.h, gsmdebug.h, gsmemory.h, gs.c, gsalloc.c, gsmemory.c,
2595 
gxbcache.c)
2596 
 
2597 
Speeds up fill_rectangle for 32-bit devices.  (gdevm32.c)
2598 
 
2599 
Speeds up path writing in band lists a little.  (gxclpath.c)
2600 
 
2601 
Implements AccurateScreens along the lines described in the Adobe
2602 
documentation.  The current implementation can produce very large
2603 
super-cells, so it will not always be able to actually increase the screen
2604 
accuracy.  (gxdht.h, gsht.c, gshtscr.c)
2605 
 
2606 
</pre>
2607 
 
2608 
<h2><a name="Version3.62"></a>Version 3.62 (limited, incremental) (12/26/95)</h2>
2609 
 
2610 
<p>
2611 
This release makes some licensee-requested improvements in the garbage
2612 
collector and fixes a couple of minor bugs.  It also constitutes a
2613 
checkpoint for the forthcoming forked 3.53 release.
2614 
 
2615 
<h3><a name="V3.62_Documentation"></a>Documentation</h3><pre>
2616 
Notes that for Win32s, gs16spl.exe must be in the same directory as
2617 
gswin32.exe.  (install.doc)
2618 
 
2619 
Changes `3.N' to a real version number in the man page.  (gs.1)
2620 
 
2621 
Adds a reference to dos-psv, another "dumb terminal" user interface for
2622 
Ghostscript intended for MS-DOS users.  (README)
2623 
 
2624 
</pre><h3><a name="V3.62_Procedures"></a>Procedures</h3><pre>
2625 
 
2626 
Fixes bugs:
2627 
	- The stack size for some of the PC platforms was set too small.
2628 
(watc.mak, watcwin.mak)
2629 
 
2630 
Changes the default value of ORIENT1 from false to true, i.e., assumes that
2631 
a value of 1 for the orientation parameter of setpageparams indicates
2632 
portrait orientation.  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE.  It only
2633 
affects files created for roll-media imagesetters.  (gs_init.ps, use.doc)
2634 
 
2635 
</pre><h3><a name="V3.62_Interpreter"></a>Interpreter</h3><pre>
2636 
 
2637 
Fixes bugs:
2638 
	- The definition of the op_index_op_array_table macro had an
2639 
incorrect trailing semicolon.  (opdef.h)
2640 
	- Setting the PageSize policy to 1 and then trying to set the page
2641 
size caused an error if FIXEDMEDIA was selected.  (gs_setpd.ps)
2642 
 
2643 
Changes the garbage collector marking phase so that instead of just using a
2644 
single block (allocated, free, or default) for the mark stack, it can chain
2645 
all three types of block together.  (igc.h, igc.c, igcstr.c, ilocate.c)
2646 
 
2647 
Refactors the garbage collector slightly to reduce inter-module
2648 
dependencies.  (int.mak, igc.h, igcstr.h, igcstr.c)
2649 
 
2650 
Changes the garbage collector to keep track of ranges within each chunk that
2651 
must be scanned if the mark stack overflows.  (gxalloc.h, igc.c)
2652 
 
2653 
Adds [write]===[only] procedures, which act like == but also print the
2654 
contents of dictionaries, and ppstack, which acts like pstack but uses ===.
2655 
Changes ESTACKPRINT and OSTACKPRINT to use === rather than ==.  (gs_init.ps,
2656 
gs_setpd.ps)
2657 
 
2658 
</pre><h3><a name="V3.62_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
2659 
 
2660 
Fixes bugs:
2661 
	- If a PDF file substituted a calibrated color space for the
2662 
DeviceGray or DeviceRGB color space using a ColorSpace resource, the
2663 
PostScript file that pdf2ps produced from that PDF file caused an error.
2664 
(gs_pdf.ps)
2665 
 
2666 
</pre><h3><a name="V3.62_Library"></a>Library</h3><pre>
2667 
 
2668 
Fixes bugs:
2669 
	- The debugging code for checking the sorting of line lists didn't
2670 
check for an empty list.  (gxfill.c)
2671 
 
2672 
</pre>
2673 
 
2674 
<h2><a name="Version3.61"></a>Version 3.61 (limited) (12/10/95)</h2>
2675 
 
2676 
<p>
2677 
This limited release fixes a few bugs (including a couple that significantly
2678 
affected character quality) and also includes some substantial performance
2679 
improvements.
2680 
 
2681 
<h3><a name="V3.61_Documentation"></a>Documentation</h3><pre>
2682 
Fixes bugs:
2683 
	- The directory name for the PNG library was incorrect.
2684 
(libpng.mak)
2685 
	- The analysis of curve monotonocity in gxpcopy.c had an error.
2686 
(gxpcopy.c)
2687 
 
2688 
Changes the subdirectory names for zlib and libpng to be consistent.
2689 
(make.doc)
2690 
 
2691 
Documents a possible problem with object file format incompatibilities in
2692 
certain versions of Linux.  (make.doc)
2693 
 
2694 
Documents the new distinction between devices and device prototypes.
2695 
(language.doc)
2696 
 
2697 
Adds a pointer to DEC's free pstotext utility.  (README)
2698 
 
2699 
</pre><h3><a name="V3.61_Procedures"></a>Procedures</h3><pre>
2700 
 
2701 
Fixes bugs:
2702 
	- zlib.mak omitted some files in the encoding module dependencies.
2703 
(zlib.mak)
2704 
	- os2.mak referred to png.mak rather than libpng.mak.  (os2.mak)
2705 
	- The png devices didn't include gdevpccm.$(OBJ) as a required file.
2706 
(devs.mak)
2707 
	- Some modules in lib.mak referred to stream.h, which was defined in
2708 
int.mak.  (int.mak, lib.mak)
2709 
	- Quite a few dependencies on header files were missing from the
2710 
makefiles.  (int.mak, lib.mak, *.mak)
2711 
 
2712 
Adds a 'pg' target to the Unix makefiles, for building profiling
2713 
configurations.  (unix-end.mak)
2714 
 
2715 
</pre><h3><a name="V3.61_Utilities"></a>Utilities</h3><pre>
2716 
 
2717 
Fixes bugs:
2718 
	- Type 1 fonts in which some characters are defined by PostScript
2719 
procedures couldn't be compiled.  (ccfont.h, iccfont.c, font2c.ps)
2720 
	- pdf2ps didn't write Widths or Encoding in the converted file,
2721 
producing incorrect spacing and incorrect characters.  (pdf_2ps.ps)
2722 
	- markhint.ps didn't handle the Type 1 'div' operator, causing
2723 
typecheck errors.  (markhint.ps)
2724 
	- markhint.ps ignored the hstem3 and vstem3 hints.  (markhint.ps)
2725 
 
2726 
Changes the rollconv.ps utility to produce files whose names conform to the
2727 
8.3 length restriction, and to reduce the fixed RAM overhead for Kanji
2728 
fonts.  (rollconv.ps)
2729 
 
2730 
Adds a utility for detecting compiler problems that affect Ghostscript.
2731 
(bughunt.sh)
2732 
 
2733 
</pre><h3><a name="V3.61_Drivers"></a>Drivers</h3><pre>
2734 
 
2735 
Adds anti-aliasing capability (-dTextAlphaBits and -dGraphicsAlphaBits) to
2736 
the PGM and PPM drivers.  (gdevpbm.c)
2737 
 
2738 
Declares the static_procs member of the device structure as const *.  This
2739 
should have been done a long time ago!  (drivers.doc, gxdevice.h)
2740 
 
2741 
</pre><h3><a name="V3.61_Platforms"></a>Platforms</h3><pre>
2742 
 
2743 
Fixes bugs:
2744 
	- Printing didn't work in 32-bit MS Windows environments.
2745 
(bcwin32.mak, gdevmswn.c, gp_mswin.c)
2746 
	- There were some compatibility problems with IBM C.  (os2.mak,
2747 
gsdll.h, gdevpm.c, gp_os2.c)
2748 
 
2749 
Adds the PNG drivers to the 32-bit MS Windows and OS/2 makefiles.
2750 
(bcwin32.mak, os2.mak)
2751 
 
2752 
Adds a conditional to work around a bug in gcc 2.7.x (it didn't recognize
2753 
that the target of a const T * might still be mutable through aliasing).
2754 
(stdpre.h)
2755 
 
2756 
</pre><h3><a name="V3.61_Fonts"></a>Fonts</h3><pre>
2757 
 
2758 
Fixes bugs:
2759 
	- Rasterizing a character in a Type 1 font with an invalid FontBBox
2760 
left some garbage on the operand stack (bug introduced in 3.52 or 3.60).
2761 
(gs_type1.ps)
2762 
	- The font substitution algorithm could fail or loop.  (gs_fonts.ps)
2763 
 
2764 
Adds a little more support for CID fonts and CMaps.  (gs_cidfn.ps,
2765 
gs_cmap.ps)
2766 
 
2767 
</pre><h3><a name="V3.61_Interpreter"></a>Interpreter</h3><pre>
2768 
 
2769 
Fixes bugs:
2770 
	- An #include &lt;memory_.h&gt; was missing.  (ziodev.h)
2771 
	- Scanner-detected errors (primarily syntaxerror) didn't report the
2772 
file position.  (gs_init.ps)
2773 
	- Rotated characters were rendered incorrectly (bug introduced in
2774 
3.52).  (gstype1.c)
2775 
	- Some compilers got upset about the use of 'dict' as a variable
2776 
name.  (zdict.c)
2777 
	- Operand stack overflows sometimes didn't set the "requested" field
2778 
correctly.  (interp.c)
2779 
	- Using -dBufferSpace= with a non-printer device caused an error.
2780 
(gs_init.ps)
2781 
 
2782 
Adds zlibEncode/Decode filters.  (int.mak, zfzlib.c)
2783 
 
2784 
Separates devices from device prototypes.  Prototypes, which lack the
2785 
writable attribute, cannot be installed as the current device or have their
2786 
parameters changed.  This change allows Ghostscript to be exited and
2787 
restarted without being reloaded, which solves some problems with DLL
2788 
usage.  ****** WE HAD TO SUBVERT THIS CHANGE BECAUSE OF MEMORY MANAGER
2789 
PROBLEMS, by making zgetdevice return a writable reference to the
2790 
prototype.  (We finally fixed this in release 3.65.)  (gs_init.ps, iref.h,
2791 
opcheck.h, zdevice.c, ztype.c, zwppm.c)
2792 
 
2793 
Extends the client API to allow for pushing values onto the operand stack.
2794 
(imain.h, gs.c, gsmain.c)
2795 
 
2796 
Defines a .setdefaultscreen procedure that sets the default halftone screen,
2797 
transfer function, and stroke adjustment for the current device.  Changes
2798 
selectdevice and setpagedevice so that they call .setdefaultscreen;
2799 
setpagedevice calls .setdefaultscreen before calling the Install procedure,
2800 
so that Install can set different parameters if it wishes.  Note that
2801 
setdevice does not do this.  (gs_init.ps, gs_setpd.ps)
2802 
 
2803 
</pre><h3><a name="V3.61_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
2804 
 
2805 
Fixes bugs:
2806 
	- Tf set the current text font twice, and interacted with pdf2ps in
2807 
an awkward way.  (gs_pdf.ps, pdf_2ps.ps, pdf_font.ps)
2808 
	- If a font had variant Widths, it could get confused in the cache
2809 
with the underlying font.  (pdf_font.ps)
2810 
	- If a character appeared twice in an encoding and the font
2811 
specified different Widths values for the two occurrences, the last Width
2812 
would be used.  We patched this to ignore zero Widths, which is not the
2813 
correct solution but which almost always produces correct output.
2814 
(pdf_font.ps)
2815 
	- Arrays containing nulls didn't print out correctly (bug introduced
2816 
in 3.60).  (gs_init.ps)
2817 
	- Some PDF files contain very large dictionaries, which caused a
2818 
stackoverflow.  (pdf_base.ps)
2819 
 
2820 
Speeds up the initial processing of PDF files by caching the map from page
2821 
numbers to page objects, and by not scanning the outlines if we aren't
2822 
producing PostScript output.  (pdf_2ps.ps, pdf_base.ps, pdf_main.ps)
2823 
 
2824 
</pre><h3><a name="V3.61_Streams"></a>Streams</h3><pre>
2825 
 
2826 
Adds zlibEncode/Decode filters.  (lib.mak, szlibx.h, szlibc.c, szlibd.c,
2827 
szlibe.c)
2828 
 
2829 
</pre><h3><a name="V3.61_Library"></a>Library</h3><pre>
2830 
 
2831 
Fixes bugs:
2832 
	- glyphshow displayed a character with code 0 rather than the
2833 
requested character (bug introduced in 3.60.)  (gschar.c)
2834 
	- If trimming white space around a character reduced its raster, the
2835 
character was garbled in the cache (bug introduced in 3.60.)  (gxccman.c)
2836 
	- colorimage would incorrectly convert white pixels to black if the
2837 
image color space was CMYK, the current color space was not CMYK, and the
2838 
number of bits per pixel was 4 or 8.  (gsimage2.c)
2839 
	- One of the clipping tests for images was backwards (bug introduced
2840 
in 3.60).  (gsimage.c)
2841 
	- Type 1 fonts that used the Flex feature applied hints to the path
2842 
multiple times, causing dropouts, uneven stems, and other problems (bug
2843 
probably introduced in 3.21).  (gstype1.c)
2844 
	- If a Type 1 font used the Flex feature within the accent of an
2845 
accented character defined with seac, the shape of the accent could be
2846 
distorted.  (gxtype1.h, gstype1.c)
2847 
	- If a Type 1 font changed hints using the hint replacement facility
2848 
when the last operation was a closepath, the old hints would be applied a
2849 
second time, distorting the shape.  (gxhint3.c)
2850 
	- Band lists could read garbage beyond the end of data for a band,
2851 
causing unpredictable errors (bug introduced in 3.60).  (gxclread.c)
2852 
	- If the bounding box of the path for fill_path or stroke_path went
2853 
outside the device page boundary when banding, out-of-bounds memory
2854 
references occurred (bug introduced in 3.60).  (gxdevice.h, gxclpath.c)
2855 
 
2856 
Adds an alternative implementation of the core path filling algorithm that
2857 
is much faster on objects with curves but doesn't handle Y fattening.  This
2858 
is the implementation that will normally be used for rasterizing characters.
2859 
This implementation rasterizes curves directly, without flattening them.
2860 
(gxfixed.h, gxpath.h, gzpath.h, gsdps1.c, gxfill.c, gxpcopy.c, gxpdash.c)
2861 
 
2862 
Speeds up the flattening of curves substantially by omitting more redundant
2863 
points.  (gxpcopy.c)
2864 
 
2865 
Speeds up character bitmap compression a little more.  (gsbitops.h,
2866 
gdevabuf.c, gsbitops.c, gxccman.c)
2867 
 
2868 
Speeds up anti-aliased graphics a bit by computing a bounding box before
2869 
converting from oversampling to alpha values, and by speeding up the
2870 
bounding box computation itself.  (gsbitops.h, gdevabuf.c, gsbitops.c,
2871 
gxccman.c)
2872 
 
2873 
</pre>
2874 
 
2875 
<h2><a name="Version3.60"></a>Version 3.60 (limited) (11/20/95)</h2>
2876 
 
2877 
<p>
2878 
(Note: release numbers 3.54 through 3.59 were deliberately skipped.)  This
2879 
internal release includes a major redesign of band lists in order to reduce
2880 
their size for embedded implementations, to move towards supporting "vector"
2881 
output formats, and to further separate the imager library from the language
2882 
interpreters.
2883 
 
2884 
<h3><a name="V3.60_Documentation"></a>Documentation</h3><pre>
2885 
Fixes bugs:
2886 
	- A comment was incorrect.  (viewpbm.ps)
2887 
	- The PixelDifference filters were not documented.  (language.doc)
2888 
	- The change from currenttime to .currenttime wasn't documented.
2889 
(language.doc)
2890 
	- gs.1 incorrectly stated that the default font directory name
2891 
included the version number.  (gs.1)
2892 
	- The -g and -r switches didn't specify that the units for their
2893 
arguments are pixels and pixels per inch respectively.  (use.doc)
2894 
	- The PageOffset page device parameter wasn't listed.
2895 
(language.doc)
2896 
 
2897 
Changes copy_mono and copy_color to optional procedures.  (drivers.doc)
2898 
 
2899 
Adds a reference to ps_view.ps, a "dumb terminal" user interface for
2900 
Ghostscript intended for MS-DOS users.  (README)
2901 
 
2902 
Splits off the documentation on installing Ghostscript into a separate file.
2903 
(readme, install.doc, use.doc)
2904 
 
2905 
Adds documentation on the data format produced by the standard LZWEncode
2906 
filter.  (readme, lzwce.doc)
2907 
 
2908 
Clarifies XLIBDIR vs. XLIBDIRS.  (make.doc)
2909 
 
2910 
Adds user-contributed documentation on building Ghostscript under QNX.
2911 
(make.doc)
2912 
 
2913 
</pre><h3><a name="V3.60_Procedures"></a>Procedures</h3><pre>
2914 
 
2915 
Fixes bugs:
2916 
	- The rule for building dfaxhigh.dev had a typo.  (devs.mak)
2917 
	- The dependencies for gdevpipe.h were missing errno__h and
2918 
string__h.  (unixtail.mak)
2919 
	- The geninit program (the implementation of COMPILE_INITS=1) didn't
2920 
parse the command line properly, and didn't check for PostScript files
2921 
properly.  (geninit.c)
2922 
	- ccfontab.c was omitted from the fileset.  The easiest way to fix
2923 
this was to rename it to icfontab.c.  (gs.mak, int.mak, ccfontab.c)
2924 
	- The Unix makefiles installed caption.ls (a typo) rather than
2925 
caption.ps.  (unix-end.mak)
2926 
	- XLIBDIR, for dynamic library access, wasn't defined.  (*head.mak,
2927 
*tail.mak, ugcclib.mak)
2928 
 
2929 
Adds the PNG and ZLIB makefiles to the fileset.  (*.mak, png.mak, zlib.mak,
2930 
tar_cat)
2931 
 
2932 
Puts the PixelDifference filters in the standard Level 2 set, since the LZW
2933 
filters may invoke them (a post-Red Book addition to the PostScript language
2934 
definition).  (int.mak)
2935 
 
2936 
Adds -Wcast-qual to the gcc compiler flags.  (gcc-head.mak)
2937 
 
2938 
Adds the PNG drivers to the standard Unix configurations.
2939 
(ansi/cc-/gcc-head.mak)
2940 
 
2941 
Adds a -dNOFONTPATH switch to suppress any consultation of the FONTPATH
2942 
variable or the GS_FONTPATH environment variable.  (gs_fonts.ps, gs_init.ps)
2943 
 
2944 
</pre><h3><a name="V3.60_Utilities"></a>Utilities</h3><pre>
2945 
 
2946 
Fixes bugs:
2947 
	- The default scaling for viewing PBM files was computed
2948 
incorrectly.  (viewpbm.ps)
2949 
	- ps2ascii left a value on the stack for each unrecognized character
2950 
it processed, eventually causing a stackoverflow.  (ps2ascii.ps)
2951 
 
2952 
Changes viewpbm.ps so that it simply defines P1 through P6, allowing PBM
2953 
files to be executed with 'run'.  (viewpbm.ps)
2954 
 
2955 
Adds a small benchmark to crudely measure hardware/system performance.  The
2956 
same file can either be compiled as a C program or executed as a PostScript
2957 
program.  (bench.c)
2958 
 
2959 
Adds a few PPD files to the distribution.  There will probably be more as
2960 
time goes on.  (tar_gs, unix-end.mak)
2961 
 
2962 
Updates the Unix lpr scripts to handle a wider variety of device options.
2963 
(unix-lpr.doc, lprsetup.sh, unix-lpr.sh)
2964 
 
2965 
Adds a utility for converting files produced by Macromedia's Rollup program
2966 
to a Type 0 form directly usable by Ghostscript.  (rollconv.ps)
2967 
 
2968 
</pre><h3><a name="V3.60_Drivers"></a>Drivers</h3><pre>
2969 
 
2970 
Fixes bugs:
2971 
	- Forwarding devices passed an incorrect first argument when
2972 
forwarding a copy_rop operation.  (gsdevice.c)
2973 
	- Because of a typo, the LaserJet drivers had incorrect margins.
2974 
This was probably a new bug in 3.5x.  (gdevdjet.c)
2975 
	- A private name was duplicated.  (gdevtfax.c)
2976 
	- The x11alpha driver passed invalid colors to the X library.
2977 
(gdevxalt.c)
2978 
	- The x11alpha driver set the blue component of colors incorrectly.
2979 
(gdevxalt.c)
2980 
	- Some `const' declarations were missing.  (gdevtifs.c, gdevtfnx.c,
2981 
gdevxxf.c)
2982 
	- The size of A4 paper was slightly inconsistent across drivers.
2983 
(gdevdjet.c, gdevl256.c)
2984 
 
2985 
Provides default implementations of copy_mono and copy_color in terms of
2986 
fill_rectangle.  (gxdevice.h, gsdevice.c)
2987 
 
2988 
Adds forwarders for sync_output and output_page.  (gxdevice.h, gsdevice.c)
2989 
 
2990 
Adds new optional procedures to the driver interface:
2991 
	- fill_path for filling a path with a color;
2992 
	- stroke_path for stroking a path;
2993 
	- fill_mask for painting a color through a mask.
2994 
The default implementations use the existing rasterizer algorithms.  This
2995 
involves a NON-BACKWARD-COMPATIBLE change to the parameters of a few
2996 
internal routines:
2997 
	gs_currentlineparams
2998 
	gx_fill_path, gx_fill_path_only, gx_path_expand_dashes, gx_path_flatten
2999 
and two externally visible routines not part of standard PostScript:
3000 
	gs_setfilladjust, gs_currentfilladjust
3001 
(gdevmem.h, gdevprn.h, gspath.h, gspenum.h, gxcpath.h, gxdevice.h, gxdraw.h,
3002 
gxpaint.h, gxpath.h, gscoord.c, gsdevice.c, gspaint.c, gsstate.c,
3003 
gxacpath.c, gxclist.c, gxclread.c, gxcpath.c, gxdraw.c, gxfill.c, gxpaint.c,
3004 
gxpcmap.c, gxpcopy.c, gxstroke.c)
3005 
 
3006 
Makes major changes to the dithering algorithm for the color DeskJet and
3007 
BubbleJet drivers, contributed by a user.  (gdevcdj.c)
3008 
 
3009 
Adds a contributed 12-bit RGB TIFF driver.  (gdevtfnx.c)
3010 
 
3011 
</pre><h3><a name="V3.60_Platforms"></a>Platforms</h3><pre>
3012 
 
3013 
Fixes bugs:
3014 
	- The printjob created by Ghostscript was called "Ghostscirpt"
3015 
instead of "Ghostscript".  (gp_os2.c)
3016 
	- An "export" declaration was omitted from DllInit.  (gp_mswin.c)
3017 
 
3018 
Removes gp_get_clock (its interface was changed from calendar
3019 
days/milliseconds to epoch seconds/nanoseconds in an undocumented,
3020 
NON-BACKWARD-COMPATIBLE change in 3.51), and adds a new gp_get_realtime
3021 
procedure that returns epoch seconds/nanoseconds.  This too is a
3022 
NON-BACKWARD-COMPATIBLE change; it is required because we overlooked the
3023 
prior change in a batch of user-contributed code.  (gp.h, gp_*.c)
3024 
 
3025 
</pre><h3><a name="V3.60_Fonts"></a>Fonts</h3><pre>
3026 
 
3027 
Adds Heavy as a synonym for Bold when doing intelligent font substitution.
3028 
(gs_fonts.ps)
3029 
 
3030 
</pre><h3><a name="V3.60_Interpreter"></a>Interpreter</h3><pre>
3031 
 
3032 
Fixes bugs:
3033 
	- The setup for the CCITTFax filters set the 'raster' element
3034 
redundantly.  (zfdecode.c)
3035 
	- currentscreen and currentcolorscreen could give an error if the
3036 
current screen was set with sethalftone (or, for currentscreen,
3037 
setcolorscreen).  (gs_dps1.ps)
3038 
	- The font operators didn't work properly if a PostScript file
3039 
redefined certain operator names.  (gs_res.ps)
3040 
	- The CCITTFax filters imposed a limit of 9999 Rows or Columns.  The
3041 
new limit is 32000.  (zfdecode.c)
3042 
	- Streams could get removed from a bookkeeping list prematurely, and
3043 
wind up dangling.  (zfile.c)
3044 
	- The garbage collector didn't ask for large enough a mark stack,
3045 
and only used half of what it got.  (This was only a performance problem.)
3046 
(igc.c)
3047 
	- Two private names duplicated names in a vendor library.  (zbseq.c)
3048 
	- Type 1 fonts didn't enforce the maximum value of BlueScale, which
3049 
caused some faulty fonts produced by Fontographer to produce incorrect
3050 
output.  (zfont1.c)
3051 
	- cvs / cvrs / = didn't produce Adobe-compatible output.
3052 
(gs_init.ps, iutil.h, iutil.c, zfileio.c)
3053 
	- Multiple -I switches set the search path incorrectly.  (gsmain.c)
3054 
	- Many `const' declarations were missing.  (icie.h, idparam.h,
3055 
iref.h, iutil.h, idparam.c, iinit.c, ilocate.c, iname.c, interp.c, iparam.c,
3056 
iutil.c, zcie.c, zfile.c, zgstate.c, ziodev.c, ztype.c)
3057 
	- Fonts could wind up with a pointer to the wrong VM space, causing
3058 
potential GC or save/restore confusion.  (zfont2.c)
3059 
	- upath could leave garbage on the stack if it failed.  (gs_dps1.ps)
3060 
 
3061 
Speeds up rasterizing characters into the cache a little.  (gs_type0.ps)
3062 
 
3063 
Changes the default limit on the size of cached characters from the maximum
3064 
of (18 points or 5 times the "average" character size) to (18 points or 1%
3065 
of the total cache size).  (gs_init.ps)
3066 
 
3067 
Adds the DecodedByteAlign parameter to the CCITTFax filters.  (zfdecode.c)
3068 
 
3069 
Updates some code for compatibility with the new fill_path driver procedure.
3070 
(zupath.c)
3071 
 
3072 
Replaces .set/currentfilladjust with .set/currentfilladjust2, and defines
3073 
the former in terms of the latter.  (gs_init.ps, zgstate.c)
3074 
 
3075 
Extends the make[word]imagedevice operators to accept palette values of 16,
3076 
24, and 32, for creating true-color image devices.  (zdevice.c)
3077 
 
3078 
Changes realtime to match the definition of gp_get_realtime.  (zmisc.c)
3079 
 
3080 
Removes the [.]currenttime operator.  realtime provides interval timing in
3081 
milliseconds; the %Calendar% IODevice provides calendar times.  (zmisc.c)
3082 
 
3083 
Extends the LZW filters to handle the PDF Predictor (pixel-differencing)
3084 
option.  (zfdecode.c, zfilter2.c, zfpdiff.c (deleted))
3085 
 
3086 
</pre><h3><a name="V3.60_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
3087 
 
3088 
Fixes bugs:
3089 
	- The length of an image's data was sometimes calculated
3090 
incorrectly, causing an error when converting PDF to PostScript.
3091 
(pdf_draw.ps)
3092 
	- If word spacing and/or text spacing was non-zero, an error could
3093 
occur.  (gs_pdf.ps)
3094 
	- Text that was both filled and stroked caused an error.
3095 
(gs_pdf.ps)
3096 
 
3097 
</pre><h3><a name="V3.60_Streams"></a>Streams</h3><pre>
3098 
 
3099 
Fixes bugs:
3100 
	- When closing an encoding filter stream whose target was also a
3101 
filter, the latter could get called incorrectly with last = 1, possibly more
3102 
than once, leading to premature EOD markers.  (stream.c)
3103 
	- The LZW-compatible encoder put out an incorrect end-of-data code.
3104 
(slzwce.c)
3105 
	- The LZW-compatible encoder didn't put out a reset code soon
3106 
enough.  (slzwce.c)
3107 
	- Some `const' declarations were missing.  (siscale.c)
3108 
	- Doing a sgets on a closed stream could call sreadbuf, possibly
3109 
causing an error.  (stream.c)
3110 
 
3111 
Adds a new (optional) set_defaults procedure to the stream template, which
3112 
sets the stream parameters to default values.  We only implement it for a
3113 
few stream types.  (scfx.h, scommon.h, slzwx.h, spdiffx.h, srlx.h,
3114 
strimpl.h, scfd.c, scfe.c, slzwce.c, slzwd.c, slzwe.c, spdiff.c, srld.c,
3115 
srle.c)
3116 
 
3117 
Adds a new parameter to the CCITTFax filters, DecodedByteAlign.  This is an
3118 
integer N, which must be a power of 2 between 1 (2^0) and 16 (2^4), that
3119 
specifies that decoded data scan lines are always a multiple of N bytes.
3120 
The encoding filter skips data in each scan line from Columns to the next
3121 
multiple of N bytes; the decoding filter pads each scan line to a multiple
3122 
of N bytes.  Default value: 1.  (scfx.h, scfd.c, scfe.c)
3123 
 
3124 
Increases the maximum width of a scan line for the CCITTFaxEncode filter to
3125 
32000 pixels.  (scf.h)
3126 
 
3127 
</pre><h3><a name="V3.60_Library"></a>Library</h3><pre>
3128 
 
3129 
Fixes bugs:
3130 
	- Cached characters sometimes had extra blank space on the left,
3131 
leading to some unnecessary bit-shuffling when imaging them.  (gxccman.c)
3132 
	- In rare cases, gray halftones called gx_color_load unnecessarily.
3133 
(gxdither.c)
3134 
	- The list of all-bands commands wasn't initialized/reset properly.
3135 
(gxclist.c, gxclread.c)
3136 
	- Rendering an anti-aliased character to a non-anti-aliased device
3137 
didn't free the temporary bitmap, causing memory to be lost.  (gxccache.c)
3138 
	- Dash patterns where the offset exactly reached a run of length 0
3139 
skipped over the 0-length run.  (gsline.c)
3140 
	- Rectangles closed with both lineto and closepath weren't
3141 
recognized as rectangles.  This is only a performance bug.  (gxpath2.c)
3142 
	- Because of a typo in a macro formal parameter list, a private name
3143 
was duplicated.  (gsstruct.h)
3144 
	- Text display operations didn't update the current character in the
3145 
enumerator structure during the fastest path through the code.  This only
3146 
matters to one very unusual commercial client.  (gschar.c)
3147 
	- Some `const' declarations were missing.  (gsparam.h, gxistate.h,
3148 
stdpre.h; gdevm1.c, gsalloc.c, gsfont.c, gsimage3.c, gsmemory.c, gsmisc.c,
3149 
gspcolor.c, gstype1.c, gxfill.c, gxpcopy.c)
3150 
 
3151 
Changes the header files to assume that gcc on Solaris defines
3152 
__svr4__ and that, in this case, &lt;string.h&gt; has the right stuff in it.
3153 
(memory_.h)
3154 
 
3155 
Refactors the character cache to share structures with a similar cache
3156 
used by band lists.  Eventually the band list may be able to reference
3157 
the character cache directly, saving a lot of copying.  (gxbcache.h,
3158 
gxfcache.h, gsfont.c, gxbcache.c, gxccache.c, gxccman.c)
3159 
 
3160 
Speeds up getting the side bearing and width of a Type 1 charstring a
3161 
little.  (gxtype1.h, gstype1.c)
3162 
 
3163 
Redesigns band lists so that they can cache character bitmaps as well as
3164 
halftone bitmaps.  Characters may be written for all bands, not just the
3165 
band(s) they appear in, depending on the setting of the CHAR_ALL_BANDS_COUNT
3166 
parameter in gxclbits.c.  (gxcldev.h, gxclist.h, gxclbits.c, gxclist.c,
3167 
gxclread.c)
3168 
 
3169 
Adds G4 fax compression for band list bitmaps.  (gxcldev.h, gxclist.c,
3170 
gxclread.c)
3171 
 
3172 
Incorporates the new set_defaults procedure into the memory-based band list
3173 
implementation.  (gxclmem.c)
3174 
 
3175 
Implements a halftoning device that can be used in a device pipeline.
3176 
(gdevht.h, gzht.h, gdevht.c, gxcht.c)
3177 
 
3178 
Factors out imager state from the full graphics state.  This division is
3179 
preliminary and subject to change.  (gxistate.h, gxop1.h, gzstate.h,
3180 
gsline.c, gsstate.c, gstype1.c, gxhint*.c)
3181 
 
3182 
Implements passing fill operations in the band list, except for pattern
3183 
color or colored halftones.  (gxcldev.h, gxclist.h, gxclist.c, gxclread.c)
3184 
 
3185 
Implements passing stroke operations in the band list, except for pattern
3186 
color or colored halftones.  (gsline.h, gslparam.h, gxline.h, gzline.h,
3187 
gsline.c; gxcldev.h, gxclist.h, gxclist.c, gxclread.c)
3188 
 
3189 
Implements the ability to represent halftoned characters in the band list.
3190 
(gxccache.c)
3191 
 
3192 
Starts to implement the ability to do halftoning during the rendering phase
3193 
rather than before writing the band list (currently for black-and-white
3194 
devices only).  Doing this required NON-BACKWARD-COMPATIBLE changes to the
3195 
interfaces of a few internal procedures:
3196 
	gx_check_tile_size, gx_render_device_{color,gray}
3197 
(gxdcolor.h, gxdht.h, gzht.h, gsht.c, gsimage1.c, gsmisc.c, gspcolor.c,
3198 
gsstate.c, gxcht.c, gxclbits.c, gxdither.c, gxht.c)
3199 
 
3200 
Implements passing clipping information in the band list.  (gzcpath.h,
3201 
gxacpath.c, gxclpath.c, gxclread.c, gxcpath.c)
3202 
 
3203 
Removes the gs_state * parameter from the device color fill_rectangle
3204 
procedures and many of their callers, since it is no longer needed.  This is
3205 
a non-backward-compatible change to an internal API.  (gdevmrop.h,
3206 
gxdcolor.h, gxdraw.h, gxpaint.h, gdevmrop.c, gsimage.c, gspcolor.c, gxcht.c,
3207 
gxclread.c, gxdraw.c, gxfill.c, gxht.c, gxpaint.c, gxstroke.c)
3208 
 
3209 
Removes gxdevice.h from gzstate.h, since not all modules requiring access to
3210 
the graphics state need to know the implementation of devices.  This entails
3211 
adding gxdevice.h to the include lists for some modules.  (gxchar.h,
3212 
gxcpath.h, gxcvalue.h, gxdevice.h, gxtype1.h, gzstate.h; gschar.c,
3213 
gscoord.c, gsdevice.c, gsimage1.c, gsimage2.c, gsimage3.c, gspaint.c,
3214 
gspath.c, gsstate.c, gstype1.c, gxccache.c, gxccman.c, gxhint1.c, gxhint2.c,
3215 
gxhint3.c, gxpaint.c)
3216 
 
3217 
Adds a compile-time option, ALPHA_LSB_FIRST, which causes alpha-sampled
3218 
characters to be nibble-reversed in the cache.  This was created for a
3219 
specialized application and does not interact well with the rest of the
3220 
code.  (gsbitops.c)
3221 
 
3222 
Substantially reduces the space required to represent 24- or 32-bit colors
3223 
in the band list, by using more aggressive color differencing.  (gxcldev.h,
3224 
gxclist.c, gxclread.c)
3225 
 
3226 
Changes the allocation of unique IDs for halftone tiles to use the gray
3227 
level rather than the number of 1-bits as the increment to a base ID; this
3228 
allows more efficient (delta) representation of halftone indices in the band
3229 
list.  (gxcldev.h, gxclist.c, gxclread.c, gxht.c)
3230 
 
3231 
Substantially speeds up entering anti-aliased characters in the cache, by
3232 
removing white space before compressing rather than vice versa.
3233 
(gsbitops.c, gxccman.c)
3234 
 
3235 
</pre>
3236 
 
3237 
<hr>
3238 
 
3239 
<h2><a name="Version3.53"></a>Version 3.53 (1/10/96)</h2>
3240 
 
3241 
<p>
3242 
This is an anomalous, out-of-sequence release requested by a commercial
3243 
licensee.  It consists of 3.52 plus the following retrofits from 3.60
3244 
through 3.63:
3245 
	- PDF interpreter and pdf2ps;
3246 
	- Type 1 rasterizer fixes;
3247 
	- Type 1 rasterizer and polygon fill performance improvements;
3248 
	- MS Windows and OS/2 fixes;
3249 
	- A few other important fixes.
3250 
It does NOT fix all problems reported since 3.52.
3251 
 
3252 
<p>
3253 
The list of changes below indicates which subsequent release was the source
3254 
of each change.  In several cases, minor editing of the change was required
3255 
to make it compatible with 3.52.
3256 
 
3257 
<h3><a name="V3.53_Documentation"></a>Documentation</h3><pre>
3258 
Fixes bugs:
3259 
	[3.61] The analysis of curve monotonocity in gxpcopy.c had an error.
3260 
(gxpcopy.c)
3261 
 
3262 
[3.63] Notes that the OS/2 implementation now requires EMX/GCC 0.9b rather
3263 
than 0.9a.  (use.doc)
3264 
 
3265 
[3.62] Notes that for Win32s, gs16spl.exe must be in the same directory as
3266 
gswin32.exe.  (use.doc)
3267 
 
3268 
[3.62] Adds a reference to dos-psv, another "dumb terminal" user interface
3269 
for Ghostscript intended for MS-DOS users.  (README)
3270 
 
3271 
[3.61] Adds a pointer to DEC's free pstotext utility.  (README)
3272 
 
3273 
[3.60] Adds a reference to ps_view.ps, a "dumb terminal" user interface for
3274 
Ghostscript intended for MS-DOS users.  (README)
3275 
 
3276 
</pre><h3><a name="V3.53_Procedures"></a>Procedures</h3><pre>
3277 
 
3278 
Fixes bugs:
3279 
	[3.60] The geninit program (the implementation of COMPILE_INITS=1)
3280 
didn't parse the command line properly, and didn't check for PostScript
3281 
files properly.  (geninit.c)
3282 
	[3.60] ccfontab.c was omitted from the fileset.  The easiest way to
3283 
fix this was to rename it to icfontab.c.  (gs.mak, int.mak, ccfontab.c)
3284 
	[3.60] The definition of pdfread.dev did an ADDMOD, not a SETMOD.
3285 
(int.mak)
3286 
 
3287 
[3.60] Adds a -dNOFONTPATH switch to suppress any consultation of the
3288 
FONTPATH variable or the GS_FONTPATH environment variable.  (gs_fonts.ps,
3289 
gs_init.ps)
3290 
 
3291 
</pre><h3><a name="V3.53_Utilities"></a>Utilities</h3><pre>
3292 
 
3293 
Fixes bugs:
3294 
	[3.61] pdf2ps didn't write Widths or Encoding in the converted file,
3295 
producing incorrect spacing and incorrect characters.  (pdf_2ps.ps)
3296 
	[3.60] ps2ascii left a value on the stack for each unrecognized
3297 
character it processed, eventually causing a stackoverflow.  (ps2ascii.ps)
3298 
 
3299 
[3.61] Changes the rollconv.ps utility to produce files whose names conform
3300 
to the 8.3 length restriction, and to reduce the fixed RAM overhead for
3301 
Kanji fonts.  (rollconv.ps)
3302 
 
3303 
[3.60] Adds a utility for converting files produced by Macromedia's Rollup
3304 
program to a Type 0 form directly usable by Ghostscript.  (rollconv.ps)
3305 
 
3306 
</pre><h3><a name="V3.53_Drivers"></a>Drivers</h3><pre>
3307 
 
3308 
Fixes bugs:
3309 
	[3.60] Because of a typo, the LaserJet drivers had incorrect
3310 
margins.  This was probably a new bug in 3.5x.  (gdevdjet.c)
3311 
	[3.60] A private name was duplicated.  (gdevtfax.c)
3312 
	[3.60] The x11alpha driver passed invalid colors to the X library.
3313 
(gdevxalt.c)
3314 
	[3.60] The x11alpha driver set the blue component of colors
3315 
incorrectly.  (gdevxalt.c)
3316 
 
3317 
</pre><h3><a name="V3.53_Platforms"></a>Platforms</h3><pre>
3318 
 
3319 
Fixes bugs:
3320 
	[3.63] The test for WinExec failure on Win32 was incorrect.
3321 
(gp_mswin.c)
3322 
	[3.63] getenv was declared redundantly on OS/2.  (gp_os2.c)
3323 
	[3.63] gs16spl.c was missing &lt;string.h&gt;.  (gs16spl.c)
3324 
	[3.61] Printing didn't work in 32-bit MS Windows environments.
3325 
(bcwin32.mak, gdevmswn.c, gp_mswin.c)
3326 
	[3.61] There were some compatibility problems with IBM C.  (os2.mak,
3327 
gsdll.h, gdevpm.c, gp_os2.c)
3328 
	[3.60] The printjob created by Ghostscript was called "Ghostscirpt"
3329 
instead of "Ghostscript".  (gp_os2.c)
3330 
	[3.60] An "export" declaration was omitted from DllInit.
3331 
(gp_mswin.c)
3332 
 
3333 
[3.61] Adds a conditional to work around a bug in gcc 2.7.x (it didn't
3334 
recognize that the target of a const T * might still be mutable through
3335 
aliasing).  (stdpre.h)
3336 
 
3337 
</pre><h3><a name="V3.53_Fonts"></a>Fonts</h3><pre>
3338 
 
3339 
Fixes bugs:
3340 
	[3.61] Rasterizing a character in a Type 1 font with an invalid
3341 
FontBBox left some garbage on the operand stack (bug introduced in 3.52 or
3342 
3.60).  (gs_type1.ps)
3343 
	[3.61] The font substitution algorithm could fail or loop.
3344 
(gs_fonts.ps)
3345 
 
3346 
[3.60] Adds Heavy as a synonym for Bold when doing intelligent font
3347 
substitution.  (gs_fonts.ps)
3348 
 
3349 
</pre><h3><a name="V3.53_Interpreter"></a>Interpreter</h3><pre>
3350 
 
3351 
Fixes bugs:
3352 
	[3.63] Invoking setpagedevice with an undefined key, even with
3353 
Policy = 1, caused an error.  (gs_setpd.ps)
3354 
	[3.62] Setting the PageSize policy to 1 and then trying to set the
3355 
page size caused an error if FIXEDMEDIA was selected.  (gs_setpd.ps)
3356 
	[3.61] Rotated characters were rendered incorrectly (bug introduced
3357 
in 3.52).  (gstype1.c)
3358 
	[3.60] currentscreen and currentcolorscreen could give an error if
3359 
the current screen was set with sethalftone (or, for currentscreen,
3360 
setcolorscreen).  (gs_dps1.ps)
3361 
	[3.60] Streams could get removed from a bookkeeping list
3362 
prematurely, and wind up dangling.  (zfile.c)
3363 
	[3.60] Multiple -I switches set the search path incorrectly.
3364 
(gsmain.c)
3365 
	[3.60] Fonts could wind up with a pointer to the wrong VM space,
3366 
causing potential GC or save/restore confusion.  (zfont2.c)
3367 
	[3.60] upath could leave garbage on the stack if it failed.
3368 
(gs_dps1.ps)
3369 
 
3370 
[3.61] Extends the client API to allow for pushing values onto the operand
3371 
stack.  (imain.h, gs.c, gsmain.c)
3372 
 
3373 
[3.61] Defines a .setdefaultscreen procedure that sets the default halftone
3374 
screen, transfer function, and stroke adjustment for the current device.
3375 
Changes selectdevice and setpagedevice so that they call .setdefaultscreen;
3376 
setpagedevice calls .setdefaultscreen before calling the Install procedure,
3377 
so that Install can set different parameters if it wishes.  Note that
3378 
setdevice does not do this.  (gs_init.ps, gs_setpd.ps)
3379 
 
3380 
[3.60] Speeds up rasterizing characters into the cache a little.
3381 
(gs_type0.ps)
3382 
 
3383 
[3.60] Changes the default limit on the size of cached characters from the
3384 
maximum of (18 points or 5 times the "average" character size) to (18 points
3385 
or 1% of the total cache size).  (gs_init.ps)
3386 
 
3387 
[3.60] Implements parts of the Type 1 BuildChar callout in C.  (gs_type1.ps,
3388 
zchar.c)
3389 
 
3390 
</pre><h3><a name="V3.53_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
3391 
 
3392 
Fixes bugs:
3393 
	[3.62] If a PDF file substituted a calibrated color space for the
3394 
DeviceGray or DeviceRGB color space using a ColorSpace resource, the
3395 
PostScript file that pdf2ps produced from that PDF file caused an error.
3396 
(gs_pdf.ps)
3397 
	[3.61] Tf set the current text font twice, and interacted with
3398 
pdf2ps in an awkward way.  (gs_pdf.ps, pdf_2ps.ps, pdf_font.ps)
3399 
	[3.61] If a font had variant Widths, it could get confused in the
3400 
cache with the underlying font.  (pdf_font.ps)
3401 
	[3.61] If a character appeared twice in an encoding and the font
3402 
specified different Widths values for the two occurrences, the last Width
3403 
would be used.  We patched this to ignore zero Widths, which is not the
3404 
correct solution but which almost always produces correct output.
3405 
(pdf_font.ps)
3406 
	[3.61] Arrays containing nulls didn't print out correctly (bug
3407 
introduced in 3.60).  (gs_init.ps)
3408 
	[3.61] Some PDF files contain very large dictionaries, which caused
3409 
a stackoverflow.  (pdf_base.ps)
3410 
	[3.60] The length of an image's data was sometimes calculated
3411 
incorrectly, causing an error when converting PDF to PostScript.
3412 
(pdf_draw.ps)
3413 
	[3.60] If word spacing and/or text spacing was non-zero, an error
3414 
could occur.  (gs_pdf.ps)
3415 
	[3.60] Text that was both filled and stroked caused an error.
3416 
(gs_pdf.ps)
3417 
 
3418 
[3.61] Speeds up the initial processing of PDF files by caching the map from
3419 
page numbers to page objects, and by not scanning the outlines if we aren't
3420 
producing PostScript output.  (pdf_2ps.ps, pdf_base.ps, pdf_main.ps)
3421 
 
3422 
</pre><h3><a name="V3.53_Streams"></a>Streams</h3><pre>
3423 
 
3424 
Fixes bugs:
3425 
	[3.60] When closing an encoding filter stream whose target was also
3426 
a filter, the latter could get called incorrectly with last = 1, possibly
3427 
more than once, leading to premature EOD markers.  (stream.c)
3428 
	[3.60] The LZW-compatible encoder put out an incorrect end-of-data
3429 
code.  (slzwce.c)
3430 
	[3.60] The LZW-compatible encoder didn't put out a reset code soon
3431 
enough.  (slzwce.c)
3432 
	[3.60] Doing a sgets on a closed stream could call sreadbuf,
3433 
possibly causing an error.  (stream.c)
3434 
 
3435 
</pre><h3><a name="V3.53_Library"></a>Library</h3><pre>
3436 
 
3437 
Fixes bugs:
3438 
	[3.63] On 16-bit platforms, the computation of t2 and t3 in
3439 
gx_curve_x_at_y could overflow, leading to incorrect output.  (gxpcopy.c)
3440 
	[3.61] glyphshow displayed a character with code 0 rather than the
3441 
requested character (bug introduced in 3.60.)  (gschar.c)
3442 
	[3.61] If trimming white space around a character reduced its
3443 
raster, the character was garbled in the cache (bug introduced in 3.60.)
3444 
(gxccman.c)
3445 
	[3.61] colorimage would incorrectly convert white pixels to black if
3446 
the image color space was CMYK, the current color space was not CMYK, and
3447 
the number of bits per pixel was 4 or 8.  (gsimage2.c)
3448 
	[3.61] Type 1 fonts that used the Flex feature applied hints to the
3449 
path multiple times, causing dropouts, uneven stems, and other problems (bug
3450 
probably introduced in 3.21).  (gstype1.c)
3451 
	[3.61] If a Type 1 font used the Flex feature within the accent of
3452 
an accented character defined with seac, the shape of the accent could be
3453 
distorted.  (gxtype1.h, gstype1.c)
3454 
	[3.61] If a Type 1 font changed hints using the hint replacement
3455 
facility when the last operation was a closepath, the old hints would be
3456 
applied a second time, distorting the shape.  (gxhint2.c, gxhint3.c)
3457 
	[3.60] Cached characters sometimes had extra blank space on the
3458 
left, leading to some unnecessary bit-shuffling when imaging them.
3459 
(gxccman.c)
3460 
	[3.60] The list of all-bands commands wasn't initialized/reset
3461 
properly.  (gxclist.c)
3462 
	[3.60] Because of a typo in a macro formal parameter list, a private
3463 
name was duplicated.  (gsstruct.h)
3464 
	[3.60] Text display operations didn't update the current character
3465 
in the enumerator structure during the fastest path through the code.  This
3466 
only matters to one very unusual commercial client.  (gschar.c)
3467 
 
3468 
[3.61] Adds an alternative implementation of the core path filling algorithm
3469 
that is much faster on objects with curves but doesn't handle Y fattening.
3470 
This is the implementation that will normally be used for rasterizing
3471 
characters.  This implementation rasterizes curves directly, without
3472 
flattening them.  (gxfixed.h, gxpath.h, gzpath.h, gxdraw.c, gxfill.c,
3473 
gxpcopy.c)
3474 
 
3475 
[3.61] Speeds up the flattening of curves substantially by omitting more
3476 
redundant points.  (gxpcopy.c)
3477 
 
3478 
[3.61] Speeds up character bitmap compression a little more.  (gsbitops.h,
3479 
gdevabuf.c, gsbitops.c, gxccman.c)
3480 
 
3481 
[3.61] Speeds up anti-aliased graphics a bit by computing a bounding box
3482 
before converting from oversampling to alpha values, and by speeding up the
3483 
bounding box computation itself.  (gsbitops.h, gdevabuf.c, gsbitops.c,
3484 
gxccman.c)
3485 
 
3486 
[3.60] Speeds up getting the side bearing and width of a Type 1 charstring a
3487 
little.  (gxtype1.h, gstype1.c)
3488 
 
3489 
[3.60] Adds a compile-time option, ALPHA_LSB_FIRST, which causes
3490 
alpha-sampled characters to be nibble-reversed in the cache.  This was
3491 
created for a specialized application and does not interact well with the
3492 
rest of the code.  (gsbitops.c)
3493 
 
3494 
[3.60] Substantially speeds up entering anti-aliased characters in the
3495 
cache, by removing white space before compressing rather than vice versa.
3496 
(gsbitops.c, gxccman.c)
3497 
 
3498 
</pre>
3499 
 
3500 
<h2><a name="Version3.52"></a>Version 3.52 (limited) (10/6/95)</h2>
3501 
 
3502 
<p>
3503 
This is an incremental release to fix a few problems in 3.51.  Since it is
3504 
being made in an environment with no network connectivity, it will probably
3505 
not be released to the general public.  ****** THE CHANGES MARKED WITH ***
3506 
BELOW WERE LOST IN THE PROCESS OF SHUFFLING FILESETS BETWEEN ENVIRONMENTS.
3507 
THEY ARE INCORPORATED IN 3.60 BUT NOT IN 3.52. ******
3508 
 
3509 
<h3><a name="V3.52_Procedures"></a>Procedures</h3><pre>
3510 
Fixes bugs:
3511 
	- The fileset included a meaningless empty file.  (acctest.ps)
3512 
	*** The definition of pdfread.dev did an ADDMOD, not a SETMOD.
3513 
(int.mak)
3514 
 
3515 
</pre><h3><a name="V3.52_Interpreter"></a>Interpreter</h3><pre>
3516 
 
3517 
Fixes bugs:
3518 
	- The RunLengthEncode filter used with a dictionary argument could
3519 
give a spurious error.  (zfilter.c)
3520 
	- The fast form of the 'dup' operator failed to check for stack
3521 
overflow, which could lead to memory smashing.  (interp.c)
3522 
	*** Level 1 configurations gave errors during initialization.
3523 
(ialloc.c, iinit.c, ireclaim.c)
3524 
	*** Attempting to look up or insert a noaccess string as a
3525 
dictionary key converted the string to a name rather than giving an error.
3526 
(idict.h, idict.c)
3527 
 
3528 
Adds a C implementation of the .dicttomark (&gt;&gt;) procedure.  (gs_init.ps,
3529 
zdict.c)
3530 
 
3531 
*** Implements parts of the Type 1 BuildChar callout in C.  (gs_type1.ps,
3532 
ifont.h, zchar.c, zfont1.c, zfont2.c)
3533 
 
3534 
</pre><h3><a name="V3.52_Library"></a>Library</h3><pre>
3535 
 
3536 
Fixes bugs:
3537 
	- Braces were missing in an initializer.  (gxdcolor.h)
3538 
	- Composite fonts with a non-zero translation in the FontMatrix
3539 
positioned characters incorrectly.  (gschar.c)
3540 
	*** gsparam.c wouldn't compile with some versions of the Borland
3541 
compiler.  (gsparam.c)
3542 
 
3543 
Speeds up the handling of curve segments in Type 1 fonts a little.
3544 
(gstype1.c)
3545 
 
3546 
Speeds up displaying very short strings a little.  (gschar.c)
3547 
 
3548 
*** Implements parts of the Type 1 BuildChar callout in C.  (gxfont.h)
3549 
 
3550 
</pre>
3551 
 
3552 
<h2><a name="Version3.51"></a>Version 3.51 (9/27/95)</h2>
3553 
 
3554 
<p>
3555 
This is the first public release since 3.33.  Its main features are a
3556 
working setpagedevice, a working PDF interpreter, and a working PDF to PS
3557 
converter.
3558 
 
3559 
<h3><a name="V3.51_Documentation"></a>Documentation</h3><pre>
3560 
 
3561 
Fixes bugs:
3562 
	- The -dSHORTERRORS switch wasn't documented in enough places.
3563 
(current.doc, use.doc)
3564 
	- The DLL documentation was internally inconsistent.  (dll.doc)
3565 
	- The %pipe% file name syntax wasn't documented.  (language.doc)
3566 
 
3567 
</pre><h3><a name="V3.51_Procedures"></a>Procedures</h3><pre>
3568 
 
3569 
Fixes bugs:
3570 
	- caption.ps wasn't installed properly.  (unix-end.mak)
3571 
	- geninit depended on $(gconfig_h) in an improper way.  (geninit.c,
3572 
int.mak, *.mak)
3573 
	- One script lacked the #!/bin/sh header.  (gsdj500)
3574 
 
3575 
Adds the 24-bit color TIFF driver to all configurations that support
3576 
black-and-white TIFF.  (*.mak)
3577 
 
3578 
</pre><h3><a name="V3.51_Utilities"></a>Utilities</h3><pre>
3579 
 
3580 
Fixes bugs:
3581 
	- align.ps was omitted from the fileset.  (psfiles.doc, align.ps,
3582 
unix-end.mak)
3583 
 
3584 
</pre><h3><a name="V3.51_Drivers"></a>Drivers</h3><pre>
3585 
 
3586 
Fixes bugs:
3587 
	- A driver had some \s in formal parameter lists.  (gdevcdj.c)
3588 
	- A driver had some improper &amp;s.  (gdevtifs.c)
3589 
	- The default MS Windows printer driver was very slow.  (gdevwpr2.c)
3590 
	- The (newly restructured) TIFF drivers could produce a memory
3591 
access error.  (gdevtifs.c)
3592 
	- The CGM drivers referred to an obsolete structure member.
3593 
(gdevcgm.c)
3594 
	- The black-and-white H-P drivers didn't set the margins properly
3595 
(again).  (gdevdjet.c)
3596 
	- Several of the most common printer drivers omitted some scan lines
3597 
at the bottom of the page.  (gdevprn.h, gdevprn.c)
3598 
 
3599 
At the request of the main OS/2 developer, adds a printer device for OS/2.
3600 
(gdevos2p.c, os2.mak)
3601 
 
3602 
Makes many changes to the stcolor driver, submitted by the developer just
3603 
before the release.  (devices.doc, unix-end.mak, gdevstc.h, gdevstc*.c,
3604 
stcinfo.ps, stcolor.ps, stcinfo.ps)
3605 
 
3606 
</pre><h3><a name="V3.51_Platforms"></a>Platforms</h3><pre>
3607 
 
3608 
Fixes bugs:
3609 
	- usertime (and realtime) were broken on VMS.  (gp_vms.c)
3610 
	- The 32-bit MS Windows DLL control file had a typo.  (gsdll32.def)
3611 
 
3612 
Removes the color inkjet drivers from the 16-bit Windows executable, because
3613 
they overflow the 64K default data segment; adds PCX, TIFF, and BMP output
3614 
formats.  (bcwin.mak)
3615 
 
3616 
</pre><h3><a name="V3.51_Interpreter"></a>Interpreter</h3><pre>
3617 
 
3618 
Fixes bugs:
3619 
	- A routine was declared 'private' inconsistently.  (zcie.c)
3620 
	- -dSHORTERRORS didn't remove enough non-Adobe error output.
3621 
(gs_init.ps)
3622 
 
3623 
</pre><h3><a name="V3.51_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
3624 
 
3625 
Fixes bugs:
3626 
	- The ProcSet relied on the presence of NullFont.  (gs_pdf.ps)
3627 
 
3628 
</pre><h3><a name="V3.51_Library"></a>Library</h3><pre>
3629 
 
3630 
Fixes bugs:
3631 
	- There was an extraneous \ outside a macro.  (gsline.c)
3632 
	- Scaling up a black-and-white image could caused many scan lines to
3633 
be inverted.  (gsimage1.c)
3634 
	- The initial clipping path did not take Margins into account
3635 
properly.  (gxdevice.h, gdevxalt.c, gscoord.c, gsdevice.c, gsdevmem.c,
3636 
gsdparam.c, gspath.c)
3637 
	- If banding was required, characters could come out as solid black
3638 
rectangles.  (gxclist.c, gxclread.c)
3639 
 
3640 
</pre>
3641 
 
3642 
<h2><a name="Version3.50"></a>Version 3.50 (limited) (9/24/95)</h2>
3643 
 
3644 
<p>
3645 
This is the last limited bug-fix release during beta test.  The color
3646 
DeskJet drivers are broken (they sometimes produce black rectangles instead
3647 
of characters); we will fix this in the next release.
3648 
<p>
3649 
The following issues have been postponed to an unspecified future release:
3650 
<ul>
3651 
<li>	- Filling areas often writes pixels twice, causing incorrect
3652 
output
3653 
with certain unusual RasterOp values.  [1.814]
3654 
<li>	- The tar.gz archives should include a subdirectory like
3655 
gs-3.46/ in
3656 
the file names.
3657 
<li>	- The CCITTFaxDecode filter should skip initial junk if
3658 
EndOfLine =
3659 
true.  [1844 8/24/95, NRE]
3660 
</ul>
3661 
 
3662 
<h3><a name="V3.50_Procedures"></a>Procedures</h3><pre>
3663 
Fixes bugs:
3664 
	- The name of the new 24-bit TIFF driver was incorrect in one place.
3665 
(vms.mak)
3666 
 
3667 
</pre><h3><a name="V3.50_Utilities"></a>Utilities</h3><pre>
3668 
 
3669 
Adds a new utility to put a caption in a box at the bottom of each page.
3670 
(caption.ps)
3671 
 
3672 
</pre><h3><a name="V3.50_Drivers"></a>Drivers</h3><pre>
3673 
 
3674 
Fixes bugs:
3675 
	- The PC display devices weren't page devices.  Probably all the
3676 
other display and window system devices should be made page devices too, but
3677 
we aren't going to bother tracking them down.  (gdevpcfb.c)
3678 
	- There was a lot of duplicated code in the TIFF drivers.
3679 
(gdevtifs.h, gdevtfax.c, gdevtfnx.c, gdevtifs.c)
3680 
 
3681 
Updates the bjc600 / bjc800 drivers with changes from the author.
3682 
(devices.doc, gdevbjc.h, gdevcdj.c)
3683 
 
3684 
</pre><h3><a name="V3.50_Interpreter"></a>Interpreter</h3><pre>
3685 
 
3686 
Fixes bugs:
3687 
	- Building with COMPILE_INITS=1 produced a stackunderflow error.
3688 
(gs_pdf_e.ps)
3689 
	- An internal operator didn't have a name.  (ztoken.c)
3690 
	- Some error and information messages weren't in the Adobe format.
3691 
(gs_fonts.ps, gs_init.ps)
3692 
	- Some common Adobe compatibility operators weren't implemented:
3693 
pagemargin, pageparams, setpagemargin.  (gs_statd.ps, gs_lev2.ps)
3694 
	- setpageparams set Margins rather than PageOffset.  (gs_lev2.ps)
3695 
	- setpage and setpageparams didn't set Orientation.  (gs_lev2.ps)
3696 
	- If the end of an input buffer fell just after the / of a literal
3697 
name, a memory access error could occur.  (iscan.c)
3698 
	- When the interpreter returned from gs_[main_]run_string_continue,
3699 
there could be an extra value on the operand stack.  (iscan.h, istream.h,
3700 
interp.c, iscan.c, zfileio.c, zfproc.c, zpaint.c, ztoken.c)
3701 
	- If the character cache was disabled, or if a character was too
3702 
large to be cached, returning from a font BuildChar procedure could do an
3703 
erasepage.  (zchar.c)
3704 
 
3705 
A minor change was required for compatibility with the library change for
3706 
image devices.  (zdevice.c)
3707 
 
3708 
Adds a -dSHORTERRORS switch that changes some of the common error and
3709 
warning messages for greater Adobe compatibility.  (gs_init.ps, gs_fonts.ps)
3710 
 
3711 
</pre><h3><a name="V3.50_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
3712 
 
3713 
Fixes bugs:
3714 
	- If a CharProc for a Type 3 font did a BT/ET, the graphics state
3715 
could get confused.  (gs_pdf.ps)
3716 
	- If a Tf occurred inside a BT/ET, it didn't take effect on
3717 
subsequent BT/ETs.  (gs_pdf.ps)
3718 
 
3719 
</pre><h3><a name="V3.50_Library"></a>Library</h3><pre>
3720 
 
3721 
Fixes bugs:
3722 
	- There was no way to control whether an image device was a page
3723 
device.  Fixing this required a NON-BACKWARD-COMPATIBLE CHANGE to
3724 
gs_makewordimagedevice and gs_initialize_wordimagedevice to take a Boolean
3725 
page_device argument.  Fortunately, this change affects only a few obscure
3726 
library clients.  (gsdevice.h, gsdevmem.c)
3727 
 
3728 
Adds translation capability to clipping devices.  This isn't used anywhere
3729 
yet.  (gxcpath.h, gxcpath.c)
3730 
 
3731 
Adds procedures for doing unaligned copy_xxx operations.  These were added
3732 
for a customer.  (gxdevice.h, gsdevice.c)
3733 
 
3734 
Changes the (undocumented) return value of gs_setcachedevice[2]: they used
3735 
to return 1 if the current show operation was a non-displaying one
3736 
(stringwidth or cshow), and now return 1 if the cache device was just
3737 
installed.  This change was required to fix the BuildChar page clearing bug
3738 
in the interpreter.  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE, but as far as
3739 
I know, there aren't any external clients of these routines.  (gschar.h,
3740 
gschar.c)
3741 
 
3742 
</pre>
3743 
 
3744 
<hr>
3745 
 
3746 
<h2><a name="Version3.49"></a>Version 3.49 (limited) (9/20/95)</h2>
3747 
 
3748 
<p>
3749 
This is another bug-fix release during beta test.  There are other bugs
3750 
outstanding, but the ones I know about right now are all platform-specific.
3751 
 
3752 
<h3><a name="V3.49_Documentation"></a>Documentation</h3><pre>
3753 
Fixes bugs:
3754 
	- make.doc didn't mention that the .def files are needed to build a
3755 
MS Windows executable.  (make.doc)
3756 
 
3757 
</pre><h3><a name="V3.49_Procedures"></a>Procedures</h3><pre>
3758 
 
3759 
Fixes bugs:
3760 
	- There were some forward references to macro definitions in the
3761 
makefiles.  (int.mak, lib.mak)
3762 
	- The default device for library configurations was the null page
3763 
device, not the first device in DEVICE_DEVS.  (ugcclib.mak)
3764 
 
3765 
</pre><h3><a name="V3.49_Drivers"></a>Drivers</h3><pre>
3766 
 
3767 
Fixes bugs:
3768 
	- The BJC600 / BJC800 drivers were missing a header file.
3769 
(gdevbjc.h, gdevcdj.c)
3770 
	- A procedure name was used in two different files.  (gdevcdj.c)
3771 
	- The PCX driver didn't return an error code in case of failure.
3772 
(gdevpcx.c)
3773 
	- The X Windows driver produced some confusing warning messages.
3774 
(gdevxini.c)
3775 
	- Some names were duplicated between drivers.  (gdevepsc.c)
3776 
	- The X driver maintained its own, peculiar initial matrix even if
3777 
Ghostview wasn't involved.  (gdevx.c)
3778 
 
3779 
With the permission of the author, changes the 24-bit TIFF license from GNU
3780 
to Aladdin.  (gdevtfnx.c)
3781 
 
3782 
</pre><h3><a name="V3.49_Platforms"></a>Platforms</h3><pre>
3783 
 
3784 
Fixes bugs:
3785 
	- The VMS build scripts were out of sync with the makefiles (again).
3786 
(modules.lis, vms.mak)
3787 
 
3788 
</pre><h3><a name="V3.49_Interpreter"></a>Interpreter</h3><pre>
3789 
 
3790 
Fixes bugs:
3791 
	- When the requested media size matched an available size exactly
3792 
with a 90 degree rotation, Orientation was ignored.  (zmedia2.c)
3793 
 
3794 
Makes zcurrentdevice extern.  (opextern.h, zdevice.c)
3795 
 
3796 
</pre><h3><a name="V3.49_Library"></a>Library</h3><pre>
3797 
 
3798 
Fixes bugs:
3799 
	- A couple of places used memcpy instead of memmove.  (gxclread.c)
3800 
	- If a bitmap image was compressed with RLE compression in a band
3801 
list, it would cause an error on decompression.  (gxclread.c)
3802 
	- The representation of colors in the band list was needlessly
3803 
inefficient.  (gxcldev.h, gxclist.c, gxclread.c)
3804 
	- When using colored halftones, snowflak.ps crashed with an invalid
3805 
memory access.  More generally, any use of halftones could cause the garbage
3806 
collector to make an invalid access.  (gsstate.c)
3807 
 
3808 
Adds some more code for paths in band lists, but again doesn't activate it.
3809 
(gxcldev.h, gxpath.h, gzline.h, gsline.c, gspath1.c, gxclist.c, gxclread.c,
3810 
gxpath.c)
3811 
 
3812 
</pre>
3813 
 
3814 
<h2><a name="Version3.48"></a>Version 3.48 (limited) (9/17/95)</h2>
3815 
 
3816 
<p>
3817 
This is the second bug-fix release during beta test.  Among other things, it
3818 
fixes a bug introduced in 3.47 that caused all PDF files to give an error.
3819 
 
3820 
<p>
3821 
******NOTE: the BJC600 and BCJ800 drivers do not work in this release,
3822 
because we didn't get a file from the author in time.  They will compile,
3823 
but not run.  This will be fixed in the next round.
3824 
 
3825 
<h3><a name="V3.48_Documentation"></a>Documentation</h3><pre>
3826 
Fixes bugs:
3827 
	- Alan Barclay's contact information was wrong.  (README)
3828 
 
3829 
</pre><h3><a name="V3.48_Procedures"></a>Procedures</h3><pre>
3830 
 
3831 
Fixes bugs:
3832 
	- The linker path for Watcom C++ 10.5 was wrong.  (wccommon.mak)
3833 
	- There was a syntax error in a batch file.  (pdf2ps.bat)
3834 
	- The VMS build script didn't have entries for some printers.
3835 
(vms.mak)
3836 
 
3837 
Adds the bjc600 and bjc800 devices on all platforms that already include the
3838 
color DeskJet devices.  (*.mak)
3839 
 
3840 
</pre><h3><a name="V3.48_Drivers"></a>Drivers</h3><pre>
3841 
 
3842 
Fixes bugs:
3843 
	- The H-P drivers didn't reposition the cursor properly at the
3844 
beginning of pages after the first page, causing the image to be shifted
3845 
down slightly and cut off at the bottom.  (gdevdjet.c)
3846 
	- The x11alpha driver was extremely slow.  (gdevxalt.c)
3847 
	- The -g switch by itself didn't work for the X Windows driver.
3848 
(gdevxini.c)
3849 
	- .installpagedevice can get a rangecheck on MS Windows because the
3850 
HWColorMap can change spontaneously.  (gs_setpd.ps)
3851 
 
3852 
Updates the bjc600 and bjc800 drivers with new versions from Yves Arrouye.
3853 
(gdevcdj.c)
3854 
 
3855 
Adds a user-contributed driver that writes uncompressed 24-bit RGB TIFF
3856 
images in a format that is standard on NeXT platforms.  This driver is
3857 
governed by the GNU license and is therefore separated from the rest of the
3858 
Aladdin distribution.  (gdevtfnx.c)
3859 
 
3860 
</pre><h3><a name="V3.48_Platforms"></a>Platforms</h3><pre>
3861 
 
3862 
Fixes bugs:
3863 
	- There was an undefined reference to clock_gettime on some Unix
3864 
systems.  (gp_unix.c)
3865 
	- The new gp_fopen routine had several errors.  (gp_vms.c)
3866 
 
3867 
</pre><h3><a name="V3.48_Interpreter"></a>Interpreter</h3><pre>
3868 
 
3869 
Fixes bugs:
3870 
	- Some routines that should be main-instance-specific weren't.
3871 
(imain.h, main.h, gsmain.c)
3872 
	- sethalftone with a Type 2 or Type 4 halftone didn't work on CMYK
3873 
devices.  (zht2.c)
3874 
	- Setting A4 paper as the default in gs_init.ps, or specifying
3875 
-dPAPERSIZE, conflicted with -g.  (gs_init.ps)
3876 
	- The maximum value of a single-precision float wasn't correct on
3877 
VAX systems.  (math_.h, iscannum.c)
3878 
	- Some integer expressions were passed as floating point arguments.
3879 
(gs.c, zmedia2.c)
3880 
	- Media selection in setpagedevice was broken (again), as of 3.46.
3881 
(gs_setpd.ps, zmedia2.c)
3882 
 
3883 
</pre><h3><a name="V3.48_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
3884 
 
3885 
Fixes bugs:
3886 
	- Substituted color spaces caused an error.  (gs_pdf.ps,
3887 
pdf_draw.ps)
3888 
 
3889 
</pre><h3><a name="V3.48_Library"></a>Library</h3><pre>
3890 
 
3891 
Fixes bugs:
3892 
	- If a halftone had no non-default components that matched the
3893 
device's primary colors, the result would be a solid color rather than a
3894 
halftone using the default screen.  (gsht.c)
3895 
	- sethalftone with a Type 2 or Type 4 halftone didn't work on CMYK
3896 
devices.  (gxht.h, gsht.c, gsht1.c)
3897 
	- The new gp_fopen routine wasn't being used.  (gsiodev.c)
3898 
	- A mixing of float and fixed values caused a clipping region to be
3899 
possibly incorrect by up to 1 pixel.  (gspaint.c)
3900 
	- A function definition was inconsistent with the prototype.
3901 
(gspath1.c)
3902 
 
3903 
Adds preliminary code for including paths in band lists, but doesn't
3904 
activate any of it.  (lib.mak, gxcldev.h, gxclist.c, gxclread.c)
3905 
 
3906 
</pre>
3907 
 
3908 
<h2><a name="Version3.47"></a>Version 3.47 (limited) (9/14/95)</h2>
3909 
 
3910 
<p>
3911 
This is a bug-fix release during beta test.  It is meant to have no new
3912 
functionality, although in the case of setpagedevice that's stretching
3913 
things a little.
3914 
 
3915 
<h3><a name="V3.47_Documentation"></a>Documentation</h3><pre>
3916 
Fixes bugs:
3917 
	- The Mac documentation still referred to IJG JPEG v5a rather than
3918 
v6.  (make.doc)
3919 
	- The RasterOp texture device was identified incorrectly.
3920 
(gdevmrop.c)
3921 
	- use.doc and psfiles.doc didn't mention the PDF-related files.
3922 
(psfiles.doc, use.doc)
3923 
	- psview is no longer available.  (README)
3924 
	- current.doc didn't document the recognized setpagedevice keys.
3925 
(current.doc)
3926 
 
3927 
</pre><h3><a name="V3.47_Procedures"></a>Procedures</h3><pre>
3928 
 
3929 
Fixes bugs:
3930 
	- Many utility programs weren't included in the Unix 'install' list.
3931 
(unix-end.mak)
3932 
	- It wasn't at all convenient to make configurations without the BCP
3933 
or other non-standard filters.  (*.mak, int.mak, modules.lis, zfilter2.c,
3934 
zfilterx.c)
3935 
	- The gconfig.c and iconfig.c files weren't deleted after
3936 
compilation.  (int.mak, lib.mak)
3937 
	- unix-end.mak referred to the nonexistent macros INT{1,2}_MAK.
3938 
(unix-end.mak)
3939 
	- The rules for building the dfax drivers were incorrect.  (devs.mak)
3940 
	- Omitting filter.dev produced an undefined reference.  (int.mak)
3941 
 
3942 
Adds a customer-contributed makefile for Microsoft Visual C++ 2.n under
3943 
Windows NT.  (msvcwint.mak)
3944 
 
3945 
</pre><h3><a name="V3.47_Utilities"></a>Utilities</h3><pre>
3946 
 
3947 
Fixes bugs:
3948 
	- The JPEG utility didn't support the new progressive JPEG modes,
3949 
and didn't invert Adobe Photoshop output as needed.  (viewjpeg.ps)
3950 
	- The printafm utility had a single font name wired in.  (printafm,
3951 
printafm.ps)
3952 
	- The CIE lookup simulation had several bugs.  (docie.ps)
3953 
	- pdf2ps[.bat] were missing from the fileset.
3954 
	- Files produced by pdf_2ps didn't include the GS_PDF ProcSet.
3955 
(gs_pdf.ps, pdf_2ps.ps, pdf_base.ps, pdf_main.ps)
3956 
 
3957 
</pre><h3><a name="V3.47_Drivers"></a>Drivers</h3><pre>
3958 
 
3959 
Fixes bugs:
3960 
	- Bits read back from an EGA or VGA device were incorrect.
3961 
(gdevpcfb.c)
3962 
	- The 24-bit PCX run length compressor used a slow algorithm.
3963 
(gdevpcx.c)
3964 
	- gdevstc.c wouldn't compile with the Borland compiler.  (gdevstc.c)
3965 
	- There was a typo in the OS/2 PM driver.  (gdevpm.c)
3966 
	- .installpagedevice gets a rangecheck on X Windows because the
3967 
HWColorMap can change spontaneously.  (gs_setpd.ps)
3968 
	- The left margin for the DeskJet 500 was wrong.  (gdevdjet.c)
3969 
	- The two notions of "margin" (offset of 0,0 from physical page
3970 
corner vs. unprintable area around edges of physical page) were still
3971 
confused.  We've now fixed this for the H-P monochrome printers, but it's
3972 
probably still confused for all other printers.  (gdevprn.h, gdevdjet.c)
3973 
 
3974 
</pre><h3><a name="V3.47_Platforms"></a>Platforms</h3><pre>
3975 
 
3976 
Fixes bugs:
3977 
	- The Windows print spooler header file wasn't included when it
3978 
needed to be, and some other Win32-specific changes were missing.
3979 
(gsdll32.def, gp_mswin.c)
3980 
	- Windows DLLs didn't parse "s in the command "arguments" correctly.
3981 
(gsdll.c)
3982 
 
3983 
</pre><h3><a name="V3.47_Fonts"></a>Fonts</h3><pre>
3984 
 
3985 
Fixes bugs:
3986 
	- FAKEFONTS could get the font directories into inconsistent states.
3987 
(gs_dps1.ps, gs_fonts.ps)
3988 
	- The substitutions for Adobe's Myriad and Minion fonts weren't
3989 
appropriate.  (gs_fonts.ps)
3990 
 
3991 
</pre><h3><a name="V3.47_Interpreter"></a>Interpreter</h3><pre>
3992 
 
3993 
Fixes bugs:
3994 
	- If pathforall got an error computing the user-space points on a
3995 
path, it could cause an invalid access.  (zpath1.c)
3996 
	- A 'private' declaration were omitted.  (Why doesn't gcc catch
3997 
this??)  (zcie.c)
3998 
	- Setting GS_FONTPATH produced a stackunderflow error.
3999 
(gs_fonts.ps)
4000 
	- currentscreen caused a typecheck if the screen had been set by
4001 
setcolorscreen.  (gs_dps1.ps)
4002 
	- setcolorrendering tried to cache values computed from the color
4003 
space even if the current color space wasn't a CIE space.  (zcrd.c)
4004 
	- Out-of-range numbers like 10E38 caused a floating point exception.
4005 
(iscannum.c)
4006 
	- Giving a closed readable file as input for a filter caused an
4007 
invalidaccess.  (files.h, interp.c, zfilter.c)
4008 
	- setpagedevice opened the default device even with -dNODISPLAY.
4009 
(gs_init.ps, gs_setpd.ps)
4010 
	- realtime returned the same value as usertime.  (gs_lev2.ps,
4011 
zmisc.c)
4012 
	- Storing a local value into systemdict caused some redundant code
4013 
to be executed.  (zdict.c)
4014 
	- Files with a very long first line could cause a rangecheck error.
4015 
(gs_init.ps)
4016 
	- The PageOffset page device parameter was ignored.  (gs_setpd.ps)
4017 
	- The Orientation page device parameter wasn't handled properly.
4018 
(gs_setpd.ps, idparam.h, idparam.c, zmedia2.c)
4019 
	- setpagedevice could set device parameters twice, with an
4020 
incomplete update the first time.  (gs_setpd.ps)
4021 
 
4022 
</pre><h3><a name="V3.47_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
4023 
 
4024 
Fixes bugs:
4025 
	- Readers confused the internal pdfrun procedure with the public
4026 
runpdf procedure.  (pdf_*.ps)
4027 
 
4028 
</pre><h3><a name="V3.47_Streams"></a>Streams</h3><pre>
4029 
 
4030 
Fixes bugs:
4031 
	- Closed streams had a NULL state pointer, causing problems for some
4032 
clients.  (stream.c)
4033 
	- Group 4 decoding could get an ioerror if an end-of-buffer occurred
4034 
in a horizontal code sequence between a makeup code and the termination
4035 
code.  (scfd.c)
4036 
 
4037 
</pre><h3><a name="V3.47_Library"></a>Library</h3><pre>
4038 
 
4039 
Fixes bugs:
4040 
	- Some 'private' declarations were omitted.  (Why doesn't gcc catch
4041 
these??)  (gdevmrop.c, gxht.c)
4042 
	- Patterns could produce bad output in the band list.  (gxclist.c)
4043 
	- RasterOp wasn't implemented at all for 2- or 4-bit devices.  (In
4044 
this release, we implement only a subset, and without handling transparency
4045 
properly.)  (gdevm2.c, gdevm4.c, gdevmrop.c)
4046 
	- Drawing operations and text sometimes didn't apply the RasterOp
4047 
when they should, and vice versa.  (gxdcolor.h, gxdraw.c)
4048 
	- setcolorrendering tried to cache values computed from the color
4049 
space even if the current color space wasn't a CIE space.  (gscie.h,
4050 
gscie.c)
4051 
	- Some CIE color spaces produced very distorted colors.  (gscie.c)
4052 
	- setpagedevice opened a window even with -dNODISPLAY.  (gsdevice.c,
4053 
gsdparam.c)
4054 
	- realtime returned the same value as usertime.  (gp.h, time_.h,
4055 
gp_*.c)
4056 
	- The library level attempted to handle the Orientation page device
4057 
parameter.  (gxdevice.h, gdevbit.c, gsdevice.c, gsdparam.c, gspath.c)
4058 
	- Severely non-linear CIE encoding/decoding functions produced
4059 
seriously skewed colors near the ends of the color value range.  This
4060 
problem can now be alleviated, at a significant cost in performance, by
4061 
changing configuration parameters at the beginning of gscie.h.  (gscie.h,
4062 
gscie.c)
4063 
	- Files FTP'ed in binary mode weren't being opened properly on VMS.
4064 
(gp.h, gp_*.c, gsiodev.c)
4065 
	- A header file had an inconsistent declaration.  (math_.h)
4066 
 
4067 
Adds a new gp_get_usertime procedure to gp.h.  THIS IS A
4068 
NON-BACKWARD-COMPATIBLE CHANGE, affecting only platform implementors.  It
4069 
was necessary to fix the realtime/usertime bug.  (gp.h, time_.h, gp_*.c)
4070 
 
4071 
Adds a new gp_fopen procedure to gp.h.  THIS IS A NON-BACKWARD-COMPATIBLE
4072 
CHANGE, affecting only platform implementors.  It was necessary to fix the
4073 
binary file problem on VMS.  (gp.h, gp_*.c)
4074 
 
4075 
</pre>
4076 
 
4077 
<h2><a name="Version3.46"></a>Version 3.46 (limited) (9/4/95)</h2>
4078 
 
4079 
<p>
4080 
This is the "serious beta test" release for the next public release.  It
4081 
finishes implementing RasterOp in the graphics state, and the remaining
4082 
commonly used parts of setpagedevice.
4083 
 
4084 
<h3><a name="V3.46_Documentation"></a>Documentation</h3><pre>
4085 
Documents some possible problems when building with DJGPP v2.0-beta.
4086 
(make.doc)
4087 
 
4088 
Adds documentation on using Ghostscript as a PDF interpreter.  (use.doc)
4089 
 
4090 
Notes linking problems with the Watcom 10.0 environment.  (make.doc)
4091 
 
4092 
</pre><h3><a name="V3.46_Procedures"></a>Procedures</h3><pre>
4093 
 
4094 
Fixes bugs:
4095 
	- The rule for $(ccfonts).dev was wrong.  (gs.mak)
4096 
 
4097 
Makes some additional filters into 'features'.  (devs.mak, gs.mak)
4098 
 
4099 
Splits off 2 new makefiles from gs.mak, which had gotten very large: lib.mak
4100 
(graphics library) and int.mak (interpreters).  (tar_cat, tar_cat.bat,
4101 
*.mak)
4102 
 
4103 
Adds a new 'config-clean' target that may be helpful in changing
4104 
configuration definitions.  (gs.mak)
4105 
 
4106 
Notes in the relevant makefiles that on Unix and DVX systems, one should not
4107 
edit 'makefile' or the concatenated makefile, but should edit the individual
4108 
subfile and run tar_cat.  (ansihead.mak, cc-head.mak, dgc-head.mak,
4109 
gcc-head.mak, devs.mak)
4110 
 
4111 
Updates the Watcom makefiles to handle Watcom release 10.5, in which many
4112 
executables moved to different directories.  (watc.mak, watcwin.mak,
4113 
wccommon.mak)
4114 
 
4115 
Adds a pdf2ps shell script.  (pdf2ps, pdf2ps.bat)
4116 
 
4117 
Adds a -sFONTMAP= switch to specify the name of the Fontmap file.
4118 
(gs_fonts.ps)
4119 
 
4120 
Adds a -u&lt;name&gt; switch to undefine a name from systemdict.  (interp.h, gs.c,
4121 
iinit.c)
4122 
 
4123 
Adds a -dFIXEDRESOLUTION switch to parallel -dFIXEDMEDIA.  Makes -g set
4124 
FIXEDMEDIA and -r set FIXEDRESOLUTION.  (gs_init.ps, gs_setpd.ps, gs.c)
4125 
 
4126 
Changes some build procedures to avoid problems with read-only source files.
4127 
(gs.mak, int.mak, lib.mak)
4128 
 
4129 
</pre><h3><a name="V3.46_Utilities"></a>Utilities</h3><pre>
4130 
 
4131 
Adds a utility for emulating the CIE color mapping algorithms.  (docie.ps)
4132 
 
4133 
</pre><h3><a name="V3.46_Drivers"></a>Drivers</h3><pre>
4134 
 
4135 
Changes the x11alpha device so that it uses 32-bit pixels with 8 bits of
4136 
alpha.  (gdevxalt.c)
4137 
 
4138 
Updates the Epson Stylus Color driver to Gunther Hess's release 1.17.
4139 
(devs.mak, unix-end.mak, devices.doc, stcolor.ps, gdevstc.h, gdevstc*.c)
4140 
 
4141 
Updates the alternate X drivers for the change from PageSize to MediaSize.
4142 
(gdevxalt.c)
4143 
 
4144 
Makes Duplex an optional parameter of printer devices rather than of all
4145 
devices.  (gdevprn.h, gxdevice.h, gsdparam.c, gdevdjet.c, gdevprn.c)
4146 
 
4147 
</pre><h3><a name="V3.46_Platforms"></a>Platforms</h3><pre>
4148 
 
4149 
Makes pipes (%pipe% file syntax) a selectable option on Unix platforms,
4150 
rather than always being included.  (ansihead.mak, cc-head.mak,
4151 
gcc-head.mak, ugcclib.mak, unixtail.mak)
4152 
 
4153 
</pre><h3><a name="V3.46_Interpreter"></a>Interpreter</h3><pre>
4154 
 
4155 
Fixes bugs:
4156 
	- colorimage, and the dictionary form of image with
4157 
MultipleDataSources = true, didn't check that all the data sources were of
4158 
the same type.  (zpaint.c)
4159 
	- colorimage, and dictionary-type images with MultipleDataSources =
4160 
true, usually didn't work properly with files.  (zpaint.c)
4161 
	- grestoreall left a dangling pointer to the transfer function
4162 
cache.  (gsstate.c)
4163 
	- Changes made by setpagedevice could get 'lost' and not installed
4164 
in the current page device dictionary.  (gs_setpd.ps)
4165 
	- The Install procedure was called before the new page device
4166 
dictionary had gotten installed.  (gs_setpd.ps)
4167 
	- If a grestore/grestoreall/restore/setgstate operation switched
4168 
page devices, the new page device didn't get installed properly.
4169 
(gs_setpd.ps, opextern.h, zdevice2.c, zdps1.c)
4170 
	- If the current screen was a Type 1 halftone, currentscreen and
4171 
currentcolorscreen returned frequency = 60, angle = 0 rather than the
4172 
Frequency and Angle from the halftone (see Adobe TN 5085).  (gs_dps1.ps,
4173 
gs_init.ps)
4174 
	- setscreen with a Type 1 halftone dictionary didn't insert the
4175 
frequency and angle into the dictionary (see Adobe TN 5085).  (gs_dps1.ps)
4176 
	- upath didn't include a trailing moveto in the bounding box.
4177 
(gs_dps1.ps, zpath1.c)
4178 
	- setpagedevice didn't automatically rotate or scale the image when
4179 
necessary.  (gs_setpd.ps, zmedia2.c)
4180 
 
4181 
Moves the RasterOp operators to a separate file.  (iutil.h, iutil.c,
4182 
zgstate.c, zrop.c)
4183 
 
4184 
Eliminates the unnecessary "wrapper" around .setdevice.  (zdevice2.c)
4185 
 
4186 
Establishes the convention that all interpreter callbacks into PostScript
4187 
code use procedure names that begin with %; documents this in gs_init.ps.
4188 
Changes Type1BuildChar and Type1BuildGlyph to %Type1BuildChar and
4189 
%Type1BuildGlyph.  (gs_init.ps, gs_type1.ps, zfont0.c, zfont1.c)
4190 
 
4191 
Changes image / imagemask / colorimage for the new library API.  (zimage2.c,
4192 
zpaint.c)
4193 
 
4194 
Reorganizes font loading to make compiled fonts and Fontmap interact better
4195 
with each other.  (gs_ccfnt.ps, gs_fonts.ps, gs_init.ps, gs_res.ps)
4196 
 
4197 
Implements parameter collection for the new CIEBasedDEF[G] color spaces, but
4198 
doesn't actually implement the color spaces themselves.  (icie.h, zcie.c,
4199 
zcrd.c)
4200 
 
4201 
Renames iconfig.c as iconf.c to avoid problems with read-only source files.
4202 
(iconf.c)
4203 
 
4204 
</pre><h3><a name="V3.46_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
4205 
 
4206 
Fixes bugs:
4207 
	- PDF to PostScript conversion didn't work.  (pdf_main.ps)
4208 
 
4209 
Shifts most of the work in the PDF interpreter from the reader to the
4210 
ProcSet.  This simplifies the code considerably and also makes it easier to
4211 
modify.  (gs_pdf.ps, pdf_draw.ps, pdf_font.ps, pdf_main.ps)
4212 
 
4213 
</pre><h3><a name="V3.46_Library"></a>Library</h3><pre>
4214 
 
4215 
Fixes bugs:
4216 
	- 'static' was omitted in a place that some compilers require it.
4217 
(gxccman.c)
4218 
	- Some compilers don't allow a variable with the same name as a
4219 
preprocessor macro with arguments.  (gscie.c)
4220 
	- Some places did a "return -1" rather than a proper error return.
4221 
(gsdevice.c, gxclist.c)
4222 
	- An external declaration had a typo.  (gsrop.h)
4223 
	- An extra semicolon upset some compilers.  (gzpath.h)
4224 
	- Printer devices that didn't use the standard macros for generating
4225 
their procedure vector wound up being considered as non-page devices.
4226 
(gdevprn.c)
4227 
	- Some compilers truncated identifiers longer than 31 characters.
4228 
(gscspace.h, zcie.c, gscie.c)
4229 
	- upath didn't include a trailing moveto in the bounding box.
4230 
(gspath.h, gspath1.c)
4231 
	- RasterOp value 126 returned an incorrect result.  (gsroptab.c)
4232 
 
4233 
Finishes implementing RasterOp in the graphics state.  (gdevmrop.h, gsrop.h,
4234 
gsropt.h, gsstate.h, gxbitmap.h, gxcindex.h, gxdcolor.h, gxdevice.h,
4235 
gzstate.h, gdevmrop.c, gscolor.c, gsdevice.c, gsimage.c, gsimage1.c,
4236 
gsimage2.c, gsimage3.c, gspcolor.c, gsrop.c, gsstate.c, gxacpath.c,
4237 
gxccache.c, gxcht.c, gxcmap.c, gxdither.c, gxdraw.c, gxht.c)
4238 
 
4239 
Changes forwarding devices so they forward get_bits by default.  This
4240 
probably doesn't affect any existing code.  (gxdevice.h, gsdevice.c)
4241 
 
4242 
Changes the API for gs_image[mask]_init to pass a structure rather than a
4243 
very large number of scalars.  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE,
4244 
motivated by the addition of further image parameters to support RasterOp.
4245 
Since there are no external clients of the library yet, it shouldn't matter.
4246 
(gsimage.h, gsimage.c, gslib.c, gxccache.c)
4247 
 
4248 
Redefines the device "page size" as being the size of the actual media,
4249 
changing the name of the gx_device PageSize member to MediaSize, the name of
4250 
the PageSize device parameter to .MediaSize (but keeping PageSize as
4251 
equivalent, for backward compatibility), and the name of the
4252 
gx_device_set_page_size procedure to gx_device_set_media_size (keeping the
4253 
old name as a macro).  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE.  It is
4254 
necessary to make setpagedevice work, and to avoid confusion about what
4255 
"page size" means.  It potentially affects any device driver, but almost
4256 
none of the device drivers distributed with Ghostscript are affected, and
4257 
those have been updated.  (gsparam.h, gxdevice.h, gsdevice.c, gsdparam.c,
4258 
gspath.c)
4259 
 
4260 
Renames gconfig.c as gconf.c to avoid problems with read-only source files.
4261 
(gconf.c)
4262 
 
4263 
Adds an API procedure for setting a bitmap pattern.  (gscolor2.h,
4264 
gspcolor.c)
4265 
 
4266 
</pre>
4267 
 
4268 
<h2><a name="Version3.45"></a>Version 3.45 (limited) (8/27/95)</h2>
4269 
 
4270 
<p>
4271 
The purpose of this release is to fix some minor bugs reported by commercial
4272 
licensees, and to add two enhancements: optional RenderTable interpolation
4273 
for CIE color, and reducing the temporary space used during character
4274 
caching (also for a licensee).
4275 
 
4276 
<h3><a name="V3.45_Documentation"></a>Documentation</h3><pre>
4277 
 
4278 
Notes that the only valid return values from get_alpha_bits are 1, 2, and 4.
4279 
(drivers.doc)
4280 
 
4281 
Notes that the get_bits driver procedure will return a pointer to aligned
4282 
data, but does not require the caller's data area to be aligned.
4283 
(drivers.doc)
4284 
 
4285 
</pre><h3><a name="V3.45_Procedures"></a>Procedures</h3><pre>
4286 
 
4287 
Fixes bugs:
4288 
	- Many of the printer and file output drivers in devs.mak still
4289 
included gdevprn.$(OBJ) in their dependencies.  (devs.mak)
4290 
	- PDEVH was used before it was defined.  (devs.mak)
4291 
	- GENCONF_XE was used before it was defined.  (unixhead.mak,
4292 
unix-end.mak)
4293 
 
4294 
Makes it possible to switch sfile implementations without editing gs.mak.
4295 
(gs.mak)
4296 
 
4297 
Makes it possible to specify alternate compiled font tables without editing
4298 
gs.mak.  (gs.mak)
4299 
 
4300 
Allows quoted arguments in @-files, e.g.,
4301 
	-sOutputFile="a file name with spaces"
4302 
(gs.c)
4303 
 
4304 
</pre><h3><a name="V3.45_Utilities"></a>Utilities</h3><pre>
4305 
 
4306 
Fixes bugs:
4307 
	- The ps2ascii script could fail to delete temporary files in case
4308 
of an abnormal exit.  (ps2ascii)
4309 
 
4310 
</pre><h3><a name="V3.45_Drivers"></a>Drivers</h3><pre>
4311 
 
4312 
Fixes bugs:
4313 
	- The MS Windows printer capability test was wrong.  (gdevwpr2.c)
4314 
	- The MS Windows and OS/2/PM displays weren't page devices.
4315 
(gdevwdib.c, gdevpm.c)
4316 
 
4317 
Gets rid of all direct references to dev-&gt;PageSize in drivers.  (gdevl256.c,
4318 
gdevvglb.c)
4319 
 
4320 
</pre><h3><a name="V3.45_Platforms"></a>Platforms</h3><pre>
4321 
 
4322 
Fixes bugs:
4323 
	- The 32-bit MS Windows configuration file for the Borland C++
4324 
compiler was missing from the fileset.  (bcc32.cfg, tar_gs)
4325 
 
4326 
Makes the printer devices in the OS/2 implementation capable of outputting
4327 
directly to the print spooler.  (use.doc, gp_os2.c)
4328 
 
4329 
Makes printing on Windows NT and Windows 95 use the printer queue.
4330 
(gp_mswin.c, gswin32.rc)
4331 
 
4332 
</pre><h3><a name="V3.45_Interpreter"></a>Interpreter</h3><pre>
4333 
 
4334 
Fixes bugs:
4335 
	- Copying a null device produced an uninitialized pointer.
4336 
(gsdevice.c)
4337 
	- The dictionary returned by deviceinfo wasn't read-only.
4338 
(gs_lev2.ps)
4339 
	- If a filter's init code failed, an entry on the operand stack
4340 
(usually the top) could be smashed.  (files.h, zfile.c, zfilter.c)
4341 
 
4342 
Adds const in a few places that needed it.  (zwppm.c)
4343 
 
4344 
Adds interpolation to the CIE RenderTable lookup.  (icie.h, zcie.c, zcrd.c)
4345 
 
4346 
</pre><h3><a name="V3.45_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
4347 
 
4348 
Allows PDF files with control-character garbage at the end, and up to 250
4349 
characters of garbage at the beginning.  The latter is only supported by
4350 
runpdf, not by run.  (pdf_base.ps, pdf_main.ps)
4351 
 
4352 
</pre><h3><a name="V3.45_Streams"></a>Streams</h3><pre>
4353 
 
4354 
Fixes bugs:
4355 
	- A 1-D CCITTFaxDecode stream could give an error if an input buffer
4356 
boundary fell just before a 0-length termination code.  (scfx.h, scfd.c)
4357 
 
4358 
</pre><h3><a name="V3.45_Library"></a>Library</h3><pre>
4359 
 
4360 
Fixes bugs:
4361 
	- A variable was used before being set, which could cause band
4362 
devices to become confused when processing colored halftones.  (gxclist.c)
4363 
	- Some of the color and tile bookkeeping for band lists was wrong
4364 
(as of 3.44), causing tiled areas to be filled with garbage.  (gxclist.c,
4365 
gxclread.c)
4366 
	- Colored Patterns showed up blank on devices whose native
4367 
representation of `black' was a non-zero value.  The fix removes the
4368 
'cached' member of the gx_device structure, and requires monobit memory
4369 
devices to have a palette; this is a NON-BACKWARD-COMPATIBLE CHANGE for
4370 
anyone who was foolish enough to statically initialize a gx_device structure
4371 
without using the macros in gxdevice.h or gdevprn.h.  (gdevmem.h,
4372 
gxdevice.h, gxdevmem.h, gdevm1.c, gdevmrop.c, gsdevice.c, gxcpath.c,
4373 
gxdither.c)
4374 
 
4375 
Provides the framework for band devices to implement alpha (anti-aliasing).
4376 
(gxcldev.h, gdevprn.c, gsdevice.c, gxclist.c, gxclread.c)
4377 
 
4378 
Implements an efficient API for enumerating paths using device coordinates.
4379 
(gspath.h, gxpath.h, gzpath.h, gspath1.c, gxpath2.c)
4380 
 
4381 
Changes the character cache logic so that when rasterizing large
4382 
anti-aliased characters, it converts the oversampled bits to alpha values on
4383 
the fly rather than waiting until it has rasterized the entire character.
4384 
This saves a lot of temporary space, at the expense of some extra time and
4385 
lower quality results for Type 3 characters that don't use a single fill or
4386 
imagemask operation to draw the character.  This enhancement requires adding
4387 
a member to the gx_device structure (max_fill_band), which is a
4388 
NON-BACKWARD-COMPATIBLE CHANGE for badly written drivers (see above).
4389 
(gxchar.h, gxdevice.h, gxpaint.h, gdevabuf.c, gschar.c, gspaint.c,
4390 
gxccache.c, gxccman.c, gxfill.c)
4391 
 
4392 
Changes the palette member of memory devices from gs_string to
4393 
gs_const_string.  (gdevmem.h, gxdevmem.h, gdevmem.c, gdevm1.c)
4394 
 
4395 
Starts to decouple halftoning from the graphics state machinery, so
4396 
it can be applied after banding rather than before.  (gxdcolor.h,
4397 
gxdht.h, gxdither.h, gzht.h, gxcmap.c, gxdither.c, gxdraw.c)
4398 
 
4399 
Starts to decouple path filling from the graphics state machinery, so
4400 
that we can pass paths through band lists.  (gxpaint.h, gxfill.c)
4401 
 
4402 
Adds interpolation to the CIE RenderTable lookup.  This is optional, enabled
4403 
by #define CIE_RENDER_TABLE_INTERPOLATE in gscie.h.  (gscie.h, gxctable.h,
4404 
gscie.c, gxctable.c)
4405 
 
4406 
</pre>
4407 
 
4408 
<h2><a name="Version3.44"></a>Version 3.44 (limited) (8/21/95)</h2>
4409 
 
4410 
<p>
4411 
This includes a few bug fixes, but its main purpose is to add two new
4412 
features: monobit and 8-bit gray-scale RasterOp (at the driver level, not at
4413 
the gstate level yet), and (compressed) band lists in RAM.  Of course, these
4414 
new features may have introduced new bugs!
4415 
 
4416 
<h3><a name="V3.44_Documentation"></a>Documentation</h3><pre>
4417 
Adds contact information for a user working on NeXT machines.  (README)
4418 
 
4419 
Notes that Ghostscript runs on FreeBSD.  (README)
4420 
 
4421 
Adds copy_rop (the RasterOp operation) to the driver interface.
4422 
(drivers.doc)
4423 
 
4424 
Adds FONTPATH information for more operating systems.  (use.doc)
4425 
 
4426 
</pre><h3><a name="V3.44_Procedures"></a>Procedures</h3><pre>
4427 
 
4428 
Fixes bugs:
4429 
	- The tar_cat script needed a #!/bin/sh to execute correctly on all
4430 
platforms.  (tar_cat)
4431 
	- There were a number of minor errors in the makefiles.  (gs.mak,
4432 
unixhead.mak)
4433 
	- Level 2 configurations without command lists had two undefined
4434 
references.  (gs.mak)
4435 
	- Some shells required an extra ';' to terminate an 'if' command.
4436 
(ugcclib.mak, unix-end.mak, unixtail.mak)
4437 
 
4438 
Updates the JPEG code to the officially released version 6 of the IJG
4439 
library.  See jpeg.mak for information on where to find this library.
4440 
(jpeg/*, jpeg.mak, *.mak, modules.lis)
4441 
 
4442 
Adds a definition of XEAUX to the makefiles to parallel CCAUX, primarily for
4443 
cross-compilation environments.  All references to &lt;some-program&gt;$(XE) must
4444 
be replaced by $(&lt;SOME-PROGRAM&gt;_XE), where some-program={$(GS), ansi2knr,
4445 
echogs, genarch, genconf, geninit}.  This is a NON-BACKWARD-COMPATIBLE
4446 
CHANGE, required in order for the makefiles to work in cross-compiled
4447 
environments.  (For non-cross-compiled environments, it currently doesn't
4448 
matter.)  (gs.mak, *.mak)
4449 
 
4450 
</pre><h3><a name="V3.44_Utilities"></a>Utilities</h3><pre>
4451 
 
4452 
Updates ps2ai.ps to version 2.13.  (ps2ai.ps)
4453 
 
4454 
Changes all the utility shell scripts to include #!/bin/sh, to use exec, and
4455 
to pass the original arguments using "$@".  (bdftops, font2c, gsbj, gsdj,
4456 
gslj, gslp, gsnd, wftopfa)
4457 
 
4458 
</pre><h3><a name="V3.44_Drivers"></a>Drivers</h3><pre>
4459 
 
4460 
Adds the requirement that all page-oriented devices (i.e., those that use
4461 
gdevprn.h and implement the print_page procedure) include page.dev in their
4462 
dependencies and use $(SETPDEV) rather than $(SETDEV) in their makefile rule
4463 
bodies.  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE.  Without this change, the
4464 
command list logic (over 25K of unnecessary object code) would have to be
4465 
included in every configuration.  (gs.mak, devs.mak, echogs.c)
4466 
 
4467 
Adds a user-contributed driver for the Okidata Microline (IBM compatible)
4468 
dot matrix printers.  (gdevokii.c)
4469 
 
4470 
Adds copy_rop (the RasterOp operation) to the driver interface.  Currently,
4471 
only monobit and 8-bit gray-scale devices implement it.  (gxdevice.h,
4472 
gsdevice.c)
4473 
 
4474 
Adds the ability to read back bits from the display to the x11 devices.
4475 
(x_.h, gdevx.c, gdevxalt.c)
4476 
 
4477 
</pre><h3><a name="V3.44_Platforms"></a>Platforms</h3><pre>
4478 
 
4479 
Makes some minor changes to support QNX.  (stat_.h)
4480 
 
4481 
Removes the mswinprn driver from the 16-bit Windows configuration, because
4482 
the 64K default data segment overflowed.  (bcwin.mak)
4483 
 
4484 
</pre><h3><a name="V3.44_Interpreter"></a>Interpreter</h3><pre>
4485 
 
4486 
Fixes bugs:
4487 
	- Type 1 fonts didn't accept packed arrays for Subrs or OtherSubrs.
4488 
(zchar1.c, zfont1.c)
4489 
	- TBCP-encoded files (yes, I know there isn't supposed to be any
4490 
such thing) didn't automatically activate TBCP decoding.  (gs_init.ps)
4491 
	- Fonts with invalid FID entries weren't detected.  (zfont.c)
4492 
 
4493 
Speeds up dictionary operations slightly by removing redundant checks for
4494 
nulls.  (zdict.c)
4495 
 
4496 
Starts adding support for the new CIEBasedDEF and CIEBasedDEFG color spaces.
4497 
(gs_l2img.ps, gs_lev2.ps, igstate.h, zcrd.c)
4498 
 
4499 
Adds access operators for RasterOp and transparency in the graphics state.
4500 
(They don't actually do anything yet.)  (zgstate.c)
4501 
 
4502 
</pre><h3><a name="V3.44_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
4503 
 
4504 
Fixes bugs:
4505 
	- PDFDocEncoding was missing characters 24-31.  (gs_pdf_e.ps)
4506 
 
4507 
Moves the definition of pdfmark from systemdict to userdict so that Adobe
4508 
PostScript files won't think the interpreter is a distiller.  (gs_pdf.ps)
4509 
 
4510 
</pre><h3><a name="V3.44_Library"></a>Library</h3><pre>
4511 
 
4512 
Fixes bugs:
4513 
	- Some JPEG images had bands of garbage alternating with bands of
4514 
valid data.  IJG v6 fixed this -- see above.
4515 
	- With FPU_TYPE = -1, the cosine routine returned incorrect values
4516 
for angles above 270 degrees.  (gsmisc.c)
4517 
	- CIE color conversion didn't work on 16-bit systems.  (gscie.h,
4518 
gscie.c)
4519 
 
4520 
Partially implements reducing the intermediate space for rasterizing
4521 
anti-aliased characters by compressing the oversampled representation to an
4522 
alpha array incrementally.  (gdevmem.h, gxchar.h, gxdevmem.h, gdevabuf.c,
4523 
gschar.c, gspaint.c, gxccman.c)
4524 
 
4525 
Starts adding support for the new CIEBasedDEF and CIEBasedDEFG color spaces.
4526 
(gscie.h, gscspace.h, gscie.c)
4527 
 
4528 
Completes the implementation of band lists in RAM.  To select this feature,
4529 
change the definition of cl_impl in gs.mak from clfile to clmem.  (Someday
4530 
we'll make this easier.)  (gxclmem.h, gxclmem.c)
4531 
 
4532 
Finishes implementing RasterOp and transparency at the driver level for
4533 
monobit and 8-bit gray-scale devices, and implements some of the framework
4534 
for general multiple-bit-per-pixel devices.  See drivers.doc for
4535 
documentation.  (gsropt.h, gxcldev.h, gxclist.h, gdevm1.c, gdevm8.c,
4536 
gdevmem.c, gdevmrop.c, gschar.c, gxclist.c, gxclread.c)
4537 
 
4538 
Implements the ability to include commands applicable to all bands, rather
4539 
than an individual band, in the band list.  Eventually this will be used for
4540 
passing halftones through the band list.  (gxcldev.h, gxclist.h, gxclist.c)
4541 
 
4542 
Adds support for 2-bit-deep 'word' memory devices.  (gdevmem.h, gxdevmem.c,
4543 
gdevm2.c)
4544 
 
4545 
Changes the initialization for memory devices so that they determine their
4546 
polarity from the device for which they are buffering the image (if any).
4547 
This is a subtle change.  (gdevmem.h, gdevmem.c, gdevm1.c, gsdevmem.c)
4548 
 
4549 
</pre>
4550 
 
4551 
<h2><a name="Version3.43"></a>Version 3.43 (limited) (8/10/95)</h2>
4552 
 
4553 
<p>
4554 
Fixes a few more minor bugs, and changes FEATURE selection back to
4555 
essentially the way it was before 3.41.
4556 
 
4557 
<h3><a name="V3.43_Documentation"></a>Documentation</h3><pre>
4558 
Fixes bugs:
4559 
	- A ~ was missing in a URL.  (README)
4560 
 
4561 
Adds information about an Amiga port of Ghostscript.  (README)
4562 
 
4563 
Removes a file called gs.1.c, which appears to be an obsolete version of
4564 
gs.1.
4565 
 
4566 
Adds DCX documentation to the PCX driver.  (We don't support DCX yet, but we
4567 
might in the future.)  (gdevpcx.c)
4568 
 
4569 
Adds information about getting Type 1 fonts from H-P if you have an H-P
4570 
PostScript printer.  (use.doc)
4571 
 
4572 
</pre><h3><a name="V3.43_Procedures"></a>Procedures</h3><pre>
4573 
 
4574 
Fixes bugs:
4575 
	- The auxiliary programs wouldn't compile with ANSI compilers that
4576 
don't accept K&amp;R syntax.  (ccgs, gs.mak, ugcclib.mak, *head.mak,
4577 
unixtail.mak, echogs.c, genarch.c, genconf.c, geninit.c)
4578 
 
4579 
Reinstates FEATURE_DEVS in the makefiles, getting rid of FEATURE1..10.  THIS
4580 
IS A NON-BACKWARD-COMPATIBLE CHANGE, but it puts things back the way they
4581 
were before 3.41, with one exception: compiling the PostScript
4582 
initialization code into the executable is now a separate macro
4583 
COMPILE_INITS with a definition of 0 or 1, instead of the ccinit 'feature'.
4584 
(gs.mak, *.mak, fonts.doc, make.doc)
4585 
 
4586 
Adds a CCLEAF macro to the makefiles, for optimizing the compilation of
4587 
modules containing only leaf procedures.  (gs.mak, *.mak)
4588 
 
4589 
Adds a CONFIG makefile variable that helps in maintaining multiple variants
4590 
in a single directory.  (gs.mak, *.mak)
4591 
 
4592 
</pre><h3><a name="V3.43_Platforms"></a>Platforms</h3><pre>
4593 
 
4594 
Fixes bugs:
4595 
	- An extern for exit() (in &lt;stdlib.h&gt;) was omitted.  (gp_vms.c)
4596 
 
4597 
</pre><h3><a name="V3.43_Fonts"></a>Fonts</h3><pre>
4598 
 
4599 
Reorganizes the compiled font facility so that fonts can be compiled and
4600 
turned into a library by third parties.  (gs.mak, font2c.ps, gs_ccfnt.ps,
4601 
ccfont.h, iccfont.c, ccfontab.c)
4602 
 
4603 
</pre><h3><a name="V3.43_Interpreter"></a>Interpreter</h3><pre>
4604 
 
4605 
Fixes bugs:
4606 
	- internaldict was implemented as a dictionary in systemdict and an
4607 
operator in userdict, rather than as an operator in systemdict.  This caused
4608 
a noaccess error when loading certain Type 1 fonts.  (gs_init.ps,
4609 
gs_type1.ps)
4610 
	- xfonts couldn't handle modified encodings.  (zfont2.c)
4611 
 
4612 
Changes the build date printout in the help message to YYYY-MM-DD.  (gs.c)
4613 
 
4614 
Adds native support for Multiple Master fonts (WeightVector).  (zfont1.c)
4615 
 
4616 
Implements sin and cos more efficiently (by table lookup with linear
4617 
interpolation) on machines with slow (or no) floating point.  (zmath.c)
4618 
 
4619 
Separates out the code for 'reading' the .ps initialization files, for the
4620 
new COMPILE_INITS arrangement.  (imain.h, gconfig.c, gsmain.c, iconfig.c,
4621 
iccinit0.c, iinit.c)
4622 
 
4623 
</pre><h3><a name="V3.43_Streams"></a>Streams</h3><pre>
4624 
 
4625 
Fixes bugs:
4626 
	- The CCITTFaxDecode filter could read up to 3 bytes beyond EOD.
4627 
This fix doesn't quite cover all cases, but at least it makes things better.
4628 
(ghc.h, sbhc.c, scfd.c)
4629 
 
4630 
</pre><h3><a name="V3.43_Library"></a>Library</h3><pre>
4631 
 
4632 
Fixes bugs:
4633 
	- After a nocurrentpoint error from a show operation with a
4634 
composite font, the bookkeeping was confused and could cause an access
4635 
error.  (gschar.c)
4636 
	- xfonts couldn't handle modified encodings.  (gsccode.h, gxchar.h,
4637 
gxfont.h, gxxfont.h, gschar.c, gxccache.c)
4638 
 
4639 
Makes .charboxpath able to use cached character information.  (gxchar.h,
4640 
gschar.c)
4641 
 
4642 
Adds native support for Multiple Master fonts (OtherSubrs 14-18).
4643 
(gxfont1.h, gstype1.c)
4644 
 
4645 
Improves the hashing functions for the character cache.  (gxfcache.h,
4646 
gxccman.c)
4647 
 
4648 
Adjusts the character oversampling algorithm to reduce thickening for
4649 
devices with alpha capability.  (gsbitops.c)
4650 
 
4651 
Improves the encoding of the band list for certain kinds of small
4652 
rectangles.  (gxcldev.h, gxclist.c, gxclread.c)
4653 
 
4654 
Implements sin and cos efficiently on machines with slow (or no) floating
4655 
point.  (gxfarith.h, gsmatrix.c, gsmisc.c, gspath1.c)
4656 
 
4657 
</pre>
4658 
 
4659 
<h2><a name="Version3.42"></a>Version 3.42 (limited) (8/2/95)</h2>
4660 
 
4661 
<p>
4662 
Fixes a few significant problems in 3.41, and brings the DLL code up to
4663 
date.
4664 
 
4665 
<h3><a name="V3.42_Documentation"></a>Documentation</h3><pre>
4666 
Fixes bugs:
4667 
	- language.doc still referred to rectappend rather than .rectappend.
4668 
(language.doc)
4669 
 
4670 
Adds documentation on the Macintosh port.  (readme, make.doc)
4671 
 
4672 
Updates the DLL documentation.  (dll.doc)
4673 
 
4674 
Documents the BCP and TBCP filters as non-experimental.  (language.doc)
4675 
 
4676 
</pre><h3><a name="V3.42_Procedures"></a>Procedures</h3><pre>
4677 
 
4678 
Changes the build date printout to YYYY-MM-DD.  (gs_init.ps)
4679 
 
4680 
</pre><h3><a name="V3.42_Platforms"></a>Platforms</h3><pre>
4681 
 
4682 
Fixes bugs:
4683 
	- The VMS build script had gotten out of sync with the makefiles
4684 
(again).  (vms.mak, modules.lis)
4685 
 
4686 
Brings the MS Windows and OS/2 platforms up to date with the rest of the
4687 
code, including DLL support for OS/2.  (os2.mak, gsdll*.def, gdevswn.c,
4688 
gdevpm.c, gdevwdib.c, gp_mswin.c, gp_os2.c, gsdll.c, gsmain.c)
4689 
 
4690 
Adds a new platform-specific routine gp_do_exit, as an alias for the C
4691 
library `exit' call.  (gp.h, gsdll.c, gsmain.c, gp_*.c)
4692 
 
4693 
</pre><h3><a name="V3.42_Interpreter"></a>Interpreter</h3><pre>
4694 
 
4695 
Fixes bugs:
4696 
	- .forgetsave at the outermost level didn't clear the l_new bit,
4697 
causing changes to be undone improperly.  (isave.c)
4698 
	- A 'void' formal parameter list upset some compilers (as it should
4699 
have).  (gsmain.c)
4700 
 
4701 
Adds a .charboxpath operator that appends to the current path the bounding
4702 
boxes of the characters of a string.  (zchar.c, zchar1.c)
4703 
 
4704 
</pre><h3><a name="V3.42_Streams"></a>Streams</h3><pre>
4705 
 
4706 
Fixes bugs:
4707 
	- A procedure was declared private inconsistently.  (siscale.c)
4708 
 
4709 
</pre><h3><a name="V3.42_Library"></a>Library</h3><pre>
4710 
 
4711 
Fixes bugs:
4712 
	- The library test program didn't do a necessary initial gsave.
4713 
(gslib.c)
4714 
	- The fix for landscape monobit images in 3.41 could smash memory.
4715 
(gsimage1.c)
4716 
	- 1-pixel-wide lines drawn with image or imagemask still disappeared
4717 
sometimes.  (gsimage.c)
4718 
 
4719 
Does some more preparatory work for the implementation of command lists in
4720 
RAM.  (gdevprn.h, gxclio.h, gxclist.h, gxclfile.c, gxclist.c, gxclread.c)
4721 
 
4722 
Adds a gs_charboxpath procedure that appends to the current path the
4723 
bounding boxes of the characters of a string.  (gschar.h, gscpm.h,
4724 
gstype1.h, gxchar.h, gxpath.h, gxtype1.h, gzstate.h, gschar.c, gspaint.c,
4725 
gstype1.c, gxpath.c)
4726 
 
4727 
</pre>
4728 
 
4729 
<h2><a name="Version3.41"></a>Version 3.41 (limited) (7/27/95)</h2>
4730 
<p>
4731 
Another incremental release with bug fixes and customer-requested
4732 
enhancements.  This release was intended to include the full setpagedevice
4733 
media matching and adjustment algorithm, but we discovered some
4734 
architectural problems during development, and have postponed it.
4735 
 
4736 
<h3><a name="V3.41_Documentation"></a>Documentation</h3><pre>
4737 
 
4738 
Replaces the build instructions for NeXTSTEP with more up-to-date and
4739 
accurate ones.  (make.doc)
4740 
 
4741 
Notes that some extra manual steps are required when cross-compiling.
4742 
(make.doc)
4743 
 
4744 
Documents how to define new 'features' in the makefile.  (gs.mak)
4745 
 
4746 
</pre><h3><a name="V3.41_Procedures"></a>Procedures</h3><pre>
4747 
 
4748 
Fixes bugs:
4749 
	- The build rule for ccinit.dev was circular.  Fixing this required
4750 
a small but NON-BACKWARD-COMPATIBLE change in the way that features are
4751 
selected in the makefiles (FEATURE_DEVS replaced by FEATURE1..10).  (*.mak,
4752 
fonts.doc, make.doc)
4753 
 
4754 
Changes the build rule for gconfig.h to be less likely to overrun MS-DOS's
4755 
command line length limit.  (gs.mak)
4756 
 
4757 
Adds a -dFIXEDMEDIA switch to indicate that the media size should be
4758 
considered fixed after initialization.  (gs_init.ps)
4759 
 
4760 
</pre><h3><a name="V3.41_Utilities"></a>Utilities</h3><pre>
4761 
 
4762 
Fixes bugs:
4763 
	- traceimg.ps incorrectly referred to .stdout.  (traceimg.ps)
4764 
	- prfont.ps didn't display unencoded characters correctly.
4765 
(prfont.ps)
4766 
	- ps2epsi didn't give correct bounding box information.  (ps2epsi,
4767 
ps2epsi.ps)
4768 
	- ps2epsi produced DSC comments that didn't fully conform to the
4769 
Adobe standard.  (ps2epsi, ps2epsi.ps)
4770 
 
4771 
Allows viewpbm.ps to take multiple files on the command line.  (viewpbm.ps)
4772 
 
4773 
</pre><h3><a name="V3.41_Drivers"></a>Drivers</h3><pre>
4774 
 
4775 
Adds a preliminary, contributed PNG driver.  THIS IS NOT USABLE YET -- DON'T
4776 
TRY TO USE IT.  (png.mak, gdevpng.c)
4777 
 
4778 
Increases the maximum allowable scan line width for the TIFF drivers from
4779 
5183 pixels to 12863 pixels.  (scf.h)
4780 
 
4781 
</pre><h3><a name="V3.41_Platforms"></a>Platforms</h3><pre>
4782 
 
4783 
Updates the MS Windows DLL code to export the new, suspendable run_string
4784 
interface.  (gsdll.h, gsdll.c, dll.doc)
4785 
 
4786 
</pre><h3><a name="V3.41_Fonts"></a>Fonts</h3><pre>
4787 
 
4788 
Fixes bugs:
4789 
	- There were several errors in cfonts.mak.  (cfonts.mak)
4790 
	- The compiled fonts option didn't offer both free and standard
4791 
configurations.  (gs.mak)
4792 
	- A bug in the handling of Encoding resources prevented compiled
4793 
fonts from working.  (gs_res.ps)
4794 
 
4795 
Adds a little more support for CID-keyed fonts.  They still aren't anywhere
4796 
near usable.  (gs_cidfn.ps, gs_type1.ps)
4797 
 
4798 
Adds a new Fontmap for Solaris 2.3.  (Fontmap.Solaris)
4799 
 
4800 
Adds support for Type 4 fonts (Type 1 fonts with their own BuildChar
4801 
procedures), including the CCRun procedure in internaldict.  (gs_fonts.ps,
4802 
gs_res.ps, gs_type1.ps)
4803 
 
4804 
</pre><h3><a name="V3.41_Interpreter"></a>Interpreter</h3><pre>
4805 
 
4806 
Fixes bugs:
4807 
	- showpage and copypage didn't honor NumCopies in a page device.
4808 
(gs_setpd.ps, zdevice2.c)
4809 
	- currentpagedevice returned incorrect information if the current
4810 
device wasn't a page device.  (gs_setpd.ps)
4811 
	- currentpagedevice didn't guarantee the presence of InputAttributes
4812 
and OutputAttributes.  (gs_setpd.ps)
4813 
	- The l_new bit wasn't set properly when a dictionary changed from
4814 
packed to unpacked keys, leading to unnecessary saves.  (idict.c)
4815 
	- Streams requiring intermediate buffering could read ahead too far,
4816 
causing input data to be skipped.  (zfilter.c)
4817 
	- cshow didn't reset the font to the base font when calling the
4818 
procedure.  (zchar2.c)
4819 
	- The Install procedure in a page device didn't set the default CTM.
4820 
(gs_setpd.ps, zmatrix.c)
4821 
	- findlibfile didn't handle special files like %stdin correctly.
4822 
(zfile.c)
4823 
	- setpagedevice didn't implement media matching.  (gs_setpd.ps,
4824 
zdevice2.c, zmedia2.c, zmatrix.c)
4825 
	- Some floating point numbers didn't print out with enough digits to
4826 
read back in with the identical value.  (iutil.c)
4827 
	- Integers that overflowed 31 bits (but not 32 bits) were converted
4828 
to negative integers rather than correct positive reals.  (iscannum.c)
4829 
 
4830 
Removes an experimental operator that called the image scaling/interpolation
4831 
code.  (zimage2.c)
4832 
 
4833 
Adds a -sSUBSTFONT=&lt;fontname&gt; switch that substitutes the given font for all
4834 
unknown fonts, bypassing the normal intelligent substitution algorithm.
4835 
(gs_fonts.ps)
4836 
 
4837 
Adds the Revision system parameter.  (zmisc2.c)
4838 
 
4839 
Adds a .knownundef operator that does an undef and returns true iff the key
4840 
was formerly present.  (zdict.c)
4841 
 
4842 
Makes the maximum length of names be 256 if EXTEND_NAMES is being used, 16K
4843 
otherwise.  (inamedef.h, iname.c)
4844 
 
4845 
Adds internaldict.  (gs_init.ps, iinit.c)
4846 
 
4847 
Adds support for Type 4 fonts.  (bfont.h, zchar.c, zchar1.c, zfont1.c,
4848 
zfont2.c)
4849 
 
4850 
Changes .encodingdict to EncodingDirectory, for compatibility with Adobe
4851 
interpreters.  (gs_init.ps, gs_kanji.ps, gs_res.ps)
4852 
 
4853 
Adds superexec, an undocumented operator that is equivalent to exec but
4854 
suppresses all invalidaccess checks.  NOT COMPLETED YET; currently superexec
4855 
is equivalent to exec.  (zcontrol.c)
4856 
 
4857 
</pre><h3><a name="V3.41_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
4858 
 
4859 
Fixes bugs:
4860 
	- .stderr was used but is no longer defined.  (pdf_base.ps)
4861 
 
4862 
</pre><h3><a name="V3.41_Streams"></a>Streams</h3><pre>
4863 
 
4864 
Fixes bugs:
4865 
	- Not all streams initialized their state pointer.  (stream.c,
4866 
sfile.c, sfileno.c)
4867 
 
4868 
Adds a filter for the smoothed image scaling algorithm.  Eventually this
4869 
filter will require very little intermediate storage; right now it still
4870 
needs to buffer the entire intermediate image.  (siscale.h, siscale.c)
4871 
 
4872 
Increases the maximum allowable scan line width for the CCITTFaxEncode
4873 
filter from 5183 pixels to 12863 pixels.  (scf.h)
4874 
 
4875 
</pre><h3><a name="V3.41_Library"></a>Library</h3><pre>
4876 
 
4877 
Fixes bugs:
4878 
	- setpagedevice didn't update NumCopies correctly.  (gdevprn.c,
4879 
gsdparam.c)
4880 
	- The newly optimized code for monobit bitmaps could cause an
4881 
out-of-bounds memory access and/or make unaligned references.  (gsimage1.c)
4882 
	- setpagedevice with unknown keys could cause an /undefined error.
4883 
(gsdparam.c)
4884 
	- cshow didn't reset the font to the base font when calling the
4885 
procedure.  (gschar.h, gschar.c)
4886 
	- The Install procedure in a page device didn't set the default CTM.
4887 
(gzstate.h, gschar.c, gscoord.c, gsdevice.c)
4888 
	- Very non-linear EncodeABC procedures in a color rendering
4889 
dictionary could produce very inaccurate results.  (gscie.h, gscie.c)
4890 
	- The line_ptrs pointer in memory devices didn't get relocated if
4891 
the bitmap was moved during garbage collection, leading to memory smashing.
4892 
(gdevmem.c)
4893 
	- setpagedevice didn't implement media matching.  (gsdparam.c,
4894 
gscoord.c)
4895 
	- 'word' memory devices weren't recognized as memory devices.
4896 
(gdevmem.c)
4897 
	- makeimagedevice allocated, and then didn't free, an unnecessary
4898 
palette for monobit devices.  (gsdevmem.c)
4899 
	- The hack for 1-bit-wide images didn't work consistently,
4900 
particularly in landscape orientation.  (gsimage.c, gsimage0.c)
4901 
 
4902 
Adds an .IgnoreNumCopies page device parameter that causes #copies and
4903 
NumCopies to be ignored.  (gxdevice.h, gsdevice.c, gsdparam.c)
4904 
 
4905 
Removes the .IsPageDevice device parameter.  (gsdparam.c)
4906 
 
4907 
Converts the image scaling/interpolation code to a filter.  (gximage.h,
4908 
gsimage.c, gsimage0.c, gsimage3.c)
4909 
 
4910 
Adds support for Type 4 fonts.  (gxfont.h)
4911 
 
4912 
Adds a default implementation of parameter lists, designed to be usable
4913 
easily from C code.  (gsparam.h, gsparam.c)
4914 
 
4915 
</pre>
4916 
 
4917 
<h2><a name="Version3.40"></a>Version 3.40 (limited) (6/28/95)</h2>
4918 
 
4919 
<p>
4920 
This is another incremental limited release for delivery of a couple of
4921 
important bug fixes (pixel 'holes' in rotated images, setpagedevice errors
4922 
on some platforms) and an enhancement (architectural support for band lists
4923 
in RAM).
4924 
 
4925 
<h3><a name="V3.40_Documentation"></a>Documentation</h3><pre>
4926 
Fixes bugs:
4927 
	- The FTP location of the EMX DLLs was incorrect.  (use.doc)
4928 
 
4929 
</pre><h3><a name="V3.40_Procedures"></a>Procedures</h3><pre>
4930 
 
4931 
Fixes bugs:
4932 
	- A couple of build rules for IJG v6 were omitted.  (jpeg.mak)
4933 
 
4934 
</pre><h3><a name="V3.40_Utilities"></a>Utilities</h3><pre>
4935 
 
4936 
Fixes bugs:
4937 
	- prfont.ps wouldn't print more than 128 unencoded characters.
4938 
(prfont.ps)
4939 
 
4940 
</pre><h3><a name="V3.40_Platforms"></a>Platforms</h3><pre>
4941 
 
4942 
Fixes bugs:
4943 
	- setpagedevice often caused /undefined errors on MS Windows and
4944 
OS/2 platforms.  (gdevmswn.c, gdevpm.c)
4945 
	- The VMS module list had gotten out of sync with the makefiles
4946 
(again).  (modules.lis)
4947 
 
4948 
</pre><h3><a name="V3.40_Interpreter"></a>Interpreter</h3><pre>
4949 
 
4950 
Fixes bugs:
4951 
	- A couple of casts betwen char * and byte * were omitted.
4952 
(gsmain.c)
4953 
	- gs_[main_]run_file_open wasn't exported properly.  (imain.h,
4954 
main.h, gsmain.c)
4955 
 
4956 
</pre><h3><a name="V3.40_Streams"></a>Streams</h3><pre>
4957 
 
4958 
Changes the DCTEncode filter to return an error if it wasn't supplied enough
4959 
data before being closed.  (sdcte.c)
4960 
 
4961 
</pre><h3><a name="V3.40_Library"></a>Library</h3><pre>
4962 
 
4963 
Fixes bugs:
4964 
	- The coordinate computations for all filling operations were
4965 
slightly inaccurate, leading to pixel 'holes' in rotated images.  (gxdda.h,
4966 
gximage.h, gsimage*.c, gxdraw.c, gxfill.c)
4967 
 
4968 
Undoes an "optimization" (inlining the normal, fast case of a procedure)
4969 
that actually hurt performance.  (gxclist.c)
4970 
 
4971 
Refactors the command list code so that it in the future it will be able to
4972 
store command lists either in RAM or in the file system.  (gdevprn.h,
4973 
gxcldev.h, gxclio.h, gxclist.h, gdevprn.c, gxclfile.c, gxclist.c,
4974 
gxclread.c)
4975 
 
4976 
Changes the interface to the path filling code to take separate X and Y
4977 
adjustment values.  (gxpaint.h, gspaint.c, gxfill.c)
4978 
 
4979 
Makes the command list allocate a small tile cache if the device doesn't
4980 
need halftones.  (gxclist.c)
4981 
 
4982 
</pre>
4983 
 
4984 
<hr>
4985 
 
4986 
<h2><a name="Version3.39"></a>Version 3.39 (limited) (6/24/95)</h2>
4987 
 
4988 
<p>
4989 
This is again an incremental release primarily for delivery of enhancements
4990 
(suspendable string input in particular) to commercial customers, and with a
4991 
few bug fixes.
4992 
 
4993 
<h3><a name="V3.39_Documentation"></a>Documentation</h3><pre>
4994 
Notes that PDF files and repositioning PostScript files do not work if
4995 
Ghostscript was compiled with VAX C.  (use.doc)
4996 
 
4997 
Notes the requirement for EOD lookahead in decoding filters.  (strimpl.h)
4998 
 
4999 
</pre><h3><a name="V3.39_Procedures"></a>Procedures</h3><pre>
5000 
 
5001 
Fixes bugs:
5002 
	- There were a number of undefined or used-before-defined variables
5003 
in the makefiles.  (devs.mak, dvx-head.mak, unixhead.mak, gs.mak)
5004 
	- Some commands in the makefile exceeded the MS-DOS limit of 120
5005 
characters.  (gs.mak)
5006 
 
5007 
Adds a -P and -P- switch to control whether the search path automatically
5008 
includes `.' as its first element.  Moves the default value of this choice
5009 
(SEARCH_HERE_FIRST) from gsmain.c to iminst.h.  (iminst.h, gs.c, gsmain.c,
5010 
use.doc)
5011 
 
5012 
Makes some makefile changes in anticipation of the IJG v6 release.  (*.mak)
5013 
 
5014 
</pre><h3><a name="V3.39_Utilities"></a>Utilities</h3><pre>
5015 
 
5016 
Fixes bugs:
5017 
	- font2c generated invalid C procedure names from font names that
5018 
contained non-alphanumerics other then '-'.  (font2c.ps)
5019 
	- font2c generated a single element of incorrect type for numeric
5020 
arrays of zero length.  (font2c.ps)
5021 
 
5022 
</pre><h3><a name="V3.39_Platforms"></a>Platforms</h3><pre>
5023 
 
5024 
Fixes bugs:
5025 
	- The VMS build scripts had gotten out of sync (again).  (vms*.mak,
5026 
modules.lis)
5027 
 
5028 
</pre><h3><a name="V3.39_Fonts"></a>Fonts</h3><pre>
5029 
 
5030 
Makes the FONTPATH directory scanner accept fonts that begin with
5031 
%!PS-AdobeFont or %!FontType1 with no following `-'.  (gs_fonts.ps)
5032 
 
5033 
</pre><h3><a name="V3.39_Interpreter"></a>Interpreter</h3><pre>
5034 
 
5035 
Fixes bugs:
5036 
	- eq and ne on arrays or dictionaries required read access.
5037 
(zrelbit.c)
5038 
	- An include was missing.  (zcsindex.c)
5039 
	- .forgetsave at the outermost level didn't reset the l_new flag in
5040 
changed slots, leading to an anomalous (although perhaps not harmful) state.
5041 
(isave.c)
5042 
	- Dictionary growing or unpacking would both save and free the old
5043 
keys array, leading to a dangling reference.  (idict.c)
5044 
 
5045 
Changes gs_interpret so that for .quit with a negative operand &lt;= -100,
5046 
gs_interpret returns e_Fatal rather than the operand.  THIS IS A
5047 
NON-BACKWARD-COMPATIBLE CHANGE, but as far as we know, it doesn't affect
5048 
anyone.  (interp.c)
5049 
 
5050 
Adds an API to allow feeding string input to the interpreter in pieces.
5051 
(errors.h, imain.h, main.h, gs.c, gsmain.c, interp.c, zcontrol.c, zfilter.c)
5052 
 
5053 
Adds new predicates .identeq and .identne that test "pointer equality", even
5054 
for numbers and strings.  (iutil.h, iutil.c, zrelbit.c)
5055 
 
5056 
Changes a few uses of return_error to return in places that don't lead
5057 
directly to a PostScript error.  (idict.c)
5058 
 
5059 
</pre><h3><a name="V3.39_Streams"></a>Streams</h3><pre>
5060 
 
5061 
Fixes bugs:
5062 
	- The logic for skipping up to a 0xff byte when decoding JPEG data
5063 
could skip too much.  (sdctd.c, sjpegd.c)
5064 
	- If a buffer boundary fell in the middle of, or just before, an
5065 
EOD, some decoding filters could stop reading too soon.  (sbcp.c, smtf.c,
5066 
sstring.c)
5067 
 
5068 
Makes some minor changes in anticipation of the IJG v6 release.
5069 
(gsjmorec.h)
5070 
 
5071 
</pre><h3><a name="V3.39_Library"></a>Library</h3><pre>
5072 
 
5073 
Fixes bugs:
5074 
	- A declaration should have been removed.  (gsdll.c)
5075 
	- The library initialization/termination API wasn't declared.
5076 
(gslib.h, gsinit.c, gsmain.c)
5077 
	- A variable and a preprocessor macro with the same name confused
5078 
VAX C.  (gxclist.c)
5079 
	- Image devices with depth 2-8 and only gray shades in the palette
5080 
didn't set color_info correctly.  (gsdevice.c)
5081 
 
5082 
Speeds up unrotated black-and-white images further by making them render
5083 
directly into a memory device when possible.  (gxdevmem.h, gsimage1.c)
5084 
 
5085 
</pre>
5086 
 
5087 
<h2><a name="Version3.38"></a>Version 3.38 (limited) (6/18/95)</h2>
5088 
 
5089 
<p>
5090 
This release incorporates several customer-requested enhancements (cleaner
5091 
separation of the graphics library from the interpreter, option for &gt;64K
5092 
names, true garbage collection of names, better handling of halftones on
5093 
band devices).  It is intended primarily for those customers, but is
5094 
intended as a dry run for the next public release.
5095 
 
5096 
<h3><a name="V3.38_Documentation"></a>Documentation</h3><pre>
5097 
Fixes bugs:
5098 
	- gx_bitmap had not been updated to gx_tile_bitmap.
5099 
(drivers.doc)
5100 
 
5101 
</pre><h3><a name="V3.38_Procedures"></a>Procedures</h3><pre>
5102 
 
5103 
Fixes bugs:
5104 
	- The man page extension in the Unix makefiles was still $(manext),
5105 
not $(man1ext).  (unix-end.mak)
5106 
	- 'make clean' didn't remove gs_init.c.  (gs.mak)
5107 
 
5108 
Restructures the makefiles to better separate the language interpreters from
5109 
the graphics core.  (gs.mak)
5110 
 
5111 
Adds a -dNOPROMPT switch to suppress the end-of-page prompts (but still wait
5112 
for the user to type a newline).  This is different from -dNOPAUSE, which
5113 
suppresses both the prompts and the wait.  (gs_init.ps)
5114 
 
5115 
</pre><h3><a name="V3.38_Utilities"></a>Utilities</h3><pre>
5116 
 
5117 
Replaces the mergeini.ps program with an equivalent (actually slightly
5118 
better) version written in C.  (gs.mak, *.mak, psfiles.doc, use.doc,
5119 
geninit.c)
5120 
 
5121 
</pre><h3><a name="V3.38_Drivers"></a>Drivers</h3><pre>
5122 
 
5123 
Fixes bugs:
5124 
	- The color DeskJet drivers wouldn't compile with a K&amp;R compiler,
5125 
because some of the procedure definitions weren't in the restricted syntax
5126 
that ansi2knr requires.  (gdevcdj.c)
5127 
	- The color DeskJet drivers wouldn't compile because of a bug in
5128 
Sun's cc.  (gdevcdj.c)
5129 
 
5130 
Changes the BJ-10e(x) margins to be identical to those of the BJ-200.
5131 
(gdevbj10.c)
5132 
 
5133 
Changes the LaserJet margins in response to a user's request.  (gdevdjet.c)
5134 
 
5135 
Changes the psmono driver to produce slightly larger files that execute
5136 
faster on typical Level 1 printers.  (gdevpsim.c)
5137 
 
5138 
Changes the psmono driver so that it does not scale the image to fit the
5139 
page size, but instead scales it to be the same physical size on the page.
5140 
THIS IS A NON BACKWARD COMPATIBLE CHANGE.  However, for full-page images, it
5141 
will not have any visible effect.  (gdevpsim.c)
5142 
 
5143 
</pre><h3><a name="V3.38_Platforms"></a>Platforms</h3><pre>
5144 
 
5145 
Fixes bugs:
5146 
	- There were some problems associated with printing in 32-bit
5147 
Windows environments.  (gp_mswin.c)
5148 
	- The IBM RS/6000 needs both &lt;time.h&gt; and &lt;sys/time.h&gt;.  (time_.h)
5149 
 
5150 
Adds the PDF interpreter to the standard MS Windows configuration.
5151 
(bcwin.mak)
5152 
 
5153 
</pre><h3><a name="V3.38_Fonts"></a>Fonts</h3><pre>
5154 
 
5155 
Fixes bugs:
5156 
	- The entry for Courier-BoldItalic in cfonts.mak incorrectly named
5157 
it as Courier-Italic.  (cfonts.mak)
5158 
	- The files for Courier-Italic in cfonts.mak were inconsistently
5159 
named ncrri instead of ncri.  (cfonts.mak)
5160 
	- The rules in cfonts.mak covered only the fonts distributed with
5161 
the free versions of Ghostscript, omitting some of the standard set of 35.
5162 
(cfonts.mak)
5163 
	- The maximum number of stem hints per character in Type 1 fonts
5164 
wasn't large enough for complex Asian characters. (gxtype1.h)
5165 
 
5166 
Adds a -dNOFONTMAP switch to suppress loading the Fontmap file.
5167 
(gs_init.ps, gs_fonts.ps)
5168 
 
5169 
</pre><h3><a name="V3.38_Interpreter"></a>Interpreter</h3><pre>
5170 
 
5171 
Fixes bugs:
5172 
	- One of the GC marking routines for halftones had a typo,
5173 
possibly leading to an invalid access.  (zht2.c)
5174 
	- The GC could store beyond the end of the mark stack,
5175 
possibly smashing some characters of a string or name.  (igc.c)
5176 
	- If the allocator allocated a new ref object from a
5177 
freelist, the bookkeeping for the current ref object could get
5178 
confused.  (ialloc.c)
5179 
	- The GC didn't remove names properly from the hash table.
5180 
(iname.c)
5181 
	- If a DOS editor added a ^Z to the end of an initialization file,
5182 
an error occurred during initialization.  (gs_init.ps)
5183 
	- If an initialization file had any lines longer than 128
5184 
characters, .skipeof would get an error.  (gs_init.ps)
5185 
	- makepattern could create structures in global VM pointing to
5186 
structures in local VM.  (zpcolor.c)
5187 
	- The default color rendering dictionary didn't specify large enough
5188 
ranges for some intermediate values.  (gs_lev2.ps)
5189 
	- Files being freed by a restore weren't unlinked properly, leading
5190 
to dangling pointers.  (zfile.c)
5191 
	- The interpreter used strlen without a prototype.  (interp.c)
5192 
	- Indexed or Separation colors with a CIE base or alternate space
5193 
didn't work.  (zcie.c)
5194 
	- The Watcom C 10.0 compiler produced incorrect code for an
5195 
overlapping structure assignment.  (zcsindex.c)
5196 
 
5197 
Removes limit of 64K names, if EXTEND_NAMES is defined at compile
5198 
time.  (*.mak, idebug.h, iminst.h, iname.h, gs.c, gsmain.c, idebug.c,
5199 
iname.c)
5200 
 
5201 
Makes the garbage collector really collect names.  (iname.h, inamedef.h,
5202 
isstate.h, igc.c, iname.c, isave.c)
5203 
 
5204 
Restructures some files to better separate the language interpreters
5205 
from their support code.  (gconfig.c, iconfig.c, iinit.c)
5206 
 
5207 
Restructures some files to better separate the language interpreters
5208 
from the graphics core.  (iastate.h, iastruct.h, ialloc.c)
5209 
 
5210 
Allows the operands of cshow to be in either order on the stack.  Adobe
5211 
interpreters apparently allow this, even though it's not documented.
5212 
(zchar2.c)
5213 
 
5214 
Adds a hack in cvs to truncate non-standard operator names, rather than
5215 
giving a rangecheck, to work around the "max err string" problem in some
5216 
common error handlers.  (ztype.c)
5217 
 
5218 
Changes the print string for unregistered operators from operator_0x... to
5219 
@0x....  (iutil.c)
5220 
 
5221 
Changes the garbage collector so it tries to allocate a large mark stack, to
5222 
avoid going into its 'slow' mode if the mark stack overflows.  (igc.c)
5223 
 
5224 
</pre><h3><a name="V3.38_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
5225 
 
5226 
Fixes bugs:
5227 
	- Stroked text used the text matrix, rather than just the
5228 
CTM, for scaling the line width, which could lead to inappropriately
5229 
wide lines.  (gs_pdf.ps)
5230 
	- Fonts based on other than a 1000-unit scale (i.e., with a
5231 
FontMatrix other than [0.001 0 0 0.001 0 0]) didn't scale Widths to
5232 
match the font scaling.  (pdf_font.ps)
5233 
 
5234 
Implements the PDF 1.1 color space extensions, except for Lab space.
5235 
(gs_pdf.ps, pdf_draw.ps)
5236 
 
5237 
Implements the Rotate key for pages.  (pdf_main.ps)
5238 
 
5239 
</pre><h3><a name="V3.38_Streams"></a>Streams</h3><pre>
5240 
 
5241 
Fixes bugs:
5242 
	- When the garbage collector closed a file stream, the stream
5243 
incorrectly attempted to free the buffer.  (stream.c)
5244 
 
5245 
Separates out some stream implementations to better distinguish the
5246 
graphics core from the language interpreters.  (smtf.h, sfilter1.c,
5247 
smtf.c, srld.c, srle.c)
5248 
 
5249 
</pre><h3><a name="V3.38_Library"></a>Library</h3><pre>
5250 
 
5251 
Fixes bugs:
5252 
	- Compressing characters being entered in the cache could cause an
5253 
invalid memory access.  (gsbitops.c)
5254 
	- The setbbox bounding box check was slightly inaccurate.
5255 
(gsdps1.c)
5256 
	- makepattern could create structures in global VM pointing to
5257 
structures in local VM.  (gscolor2.h, gspcolor.c)
5258 
	- Out-of-range values during CIE color conversion led to random
5259 
results.  (gscie.c)
5260 
	- On output devices with non-inverted Y axes (such as MS Windows),
5261 
Interpolated images would smash memory.  (gsimage.c)
5262 
	- 90 degree rotated zero-width images caused an invalid memory
5263 
access.  (gsimage1.c)
5264 
	- If #copies was zero, showpage could create bogus empty output
5265 
files.  (gdevprn.c)
5266 
	- PageCount didn't take #copies into account.  (gsdevice.c)
5267 
	- Indexed or Separation colors with a CIE base or alternate space
5268 
didn't work.  (gscie.h, gscie.c)
5269 
 
5270 
Implements triangular line caps and joins, in anticipation of adding
5271 
a PCL5 interpreter.  (gsline.h, gxstroke.c)
5272 
 
5273 
Moves some procedures around for better separation of library from
5274 
interpreter.  (gsinit.c, gslib.c, gsmain.c, gsmisc.c)
5275 
 
5276 
Moves the standard allocator from the interpreter to the library.
5277 
(gsalloc.h, gxalloc.h, gxobj.h, gsalloc.c)
5278 
 
5279 
Starts to change the representation of paths slightly to make it possible to
5280 
identify arcs.  This change is backward-compatible for all code except
5281 
callers of gx_path_add_arc.  (gxpath.h, gspath1.c, gxpath.c, gxstroke.c)
5282 
 
5283 
Adds some framework for keeping track of RasterOp and "transparency" in the
5284 
graphics state, although these don't actually have any effect yet.
5285 
(gsrop.h, gsropt.h, gsstate.h, gxcldev.h, gzstate.h, gsrop.c, gsstate.c,
5286 
gxclist.c, gxclread.c)
5287 
 
5288 
Adds a compile-time option for using the Adobe RGB&lt;-&gt;CMYK conversion rules.
5289 
(gxdcconv.c)
5290 
 
5291 
Adds a driver procedure for identifying band devices.  This change is
5292 
backward-compatible for all existing devices.  (gdevmem.h, gxdevice.h,
5293 
gsdevice.c, gxclip2.c, gxclist.c, gxcpath.c)
5294 
 
5295 
Speeds up gray-scale images on devices requiring banding, and enables
5296 
further optimizations, by reintroducing the distinction between banded and
5297 
non-banded devices.  (gxdevice.h, gdevprn.c, gsimage1.c)
5298 
 
5299 
Reduces the size of the band list for halftoned images by encoding tile
5300 
indices more compactly.  (gxcldev.h, gxclist.h, gxclist.c, gxclread.c)
5301 
 
5302 
Extends the band list so it can cache more than 256 halftone tiles, and to
5303 
make better decisions about tile caching.  (gxcldev.h, gxclist.h, gxclist.c,
5304 
gxclread.c)
5305 
 
5306 
</pre>
5307 
 
5308 
<h2><a name="Version3.37"></a>Version 3.37 (limited) (5/11/95)</h2>
5309 
 
5310 
<p>
5311 
Another bug fix release distributed only to customers.
5312 
 
5313 
<h3><a name="V3.37_Documentation"></a>Documentation</h3><pre>
5314 
Fixes bugs:
5315 
	- Some documentation about parameter lists was incorrect.
5316 
(gsparam.h)
5317 
	- The documentation did not note that one cannot "pipe" PDF files
5318 
into the interpreter.  (use.doc)
5319 
 
5320 
Adds documentation for the BJC-600 to devices.doc.  (devices.doc)
5321 
 
5322 
</pre><h3><a name="V3.37_Procedures"></a>Procedures</h3><pre>
5323 
 
5324 
Changes the debugging switch for OS calls from -Z0 to -Ze, and adds -Z0 for
5325 
high-level GC tracing.  (use.doc, gp_unifs.c, ialloc.c, igc.c)
5326 
 
5327 
</pre><h3><a name="V3.37_Utilities"></a>Utilities</h3><pre>
5328 
 
5329 
Fixes bugs:
5330 
	- The ps2ascii shell script included an erroneous @d.  (ps2ascii)
5331 
 
5332 
Enhances ps2ascii to output color and rectangle fill/stroke information if
5333 
COMPLEX is defined.  (ps2ascii.ps)
5334 
 
5335 
</pre><h3><a name="V3.37_Drivers"></a>Drivers</h3><pre>
5336 
 
5337 
Fixes bugs:
5338 
	- the BJC-600 driver didn't handle BitsPerPixel correctly.
5339 
(gdevcdj.c)
5340 
 
5341 
</pre><h3><a name="V3.37_Fonts"></a>Fonts</h3><pre>
5342 
 
5343 
Fixes bugs:
5344 
	- Some buggy Type 1 fonts confused the Type 1 font reader.
5345 
(gs_fonts.ps, gs_type1.ps, pdf_font.ps)
5346 
 
5347 
</pre><h3><a name="V3.37_Interpreter_PostScript"></a>Interpreter (PostScript)</h3><pre>
5348 
 
5349 
Fixes bugs:
5350 
	- .registerencoding didn't accept mixedarrays, which could cause an
5351 
error if an encoding was loaded long after initialization.  (zfont2.c)
5352 
	- If a program did a lot of saves and restores, the garbage
5353 
collector could get invoked much too often.  (iastate.h, ialloc.c, igc.c,
5354 
isave.c)
5355 
 
5356 
Changes the name of the rectappend operator to .rectappend, since it isn't a
5357 
standard PostScript operator.  (zdps1.c)
5358 
 
5359 
</pre><h3><a name="V3.37_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
5360 
 
5361 
Fixes bugs:
5362 
	- PDF files didn't interact properly with ps2ascii.  (gs_pdf.ps)
5363 
	- setdash wouldn't accept a packed array.  (zgstate.c)
5364 
	- PDF files with incorrect generation numbers in object references
5365 
produced an error rather than a warning.  (pdf_base.ps)
5366 
 
5367 
</pre>
5368 
 
5369 
<h2><a name="Version3.36"></a>Version 3.36 (limited) (5/4/95)</h2>
5370 
 
5371 
<p>
5372 
This is a limited-distribution release for distributing bug fixes to a few
5373 
customers.
5374 
 
5375 
<h3><a name="V3.36_Documentation"></a>Documentation</h3><pre>
5376 
Adds some environment variables to the man page.  (gs.1)
5377 
 
5378 
</pre><h3><a name="V3.36_Procedures"></a>Procedures</h3><pre>
5379 
 
5380 
Adds the psmono device to all 32-bit configurations.  (*.mak)
5381 
 
5382 
Moves the psmono and 'bit' devices to DEVICE_DEVS12 to avoid exceeding the
5383 
120-character maximum length of the DOS command line.  (*.mak)
5384 
 
5385 
</pre><h3><a name="V3.36_Drivers"></a>Drivers</h3><pre>
5386 
 
5387 
Changes the pgm[raw] and ppm[raw] drivers so they do *not* automatically
5388 
switch to pbm or pgm/ppm respectively if this is possible for the particular
5389 
page being rendered; adds pgnm[raw] and pnm[raw] drivers that *do* do this.
5390 
THIS IS A NON-BACKWARD-COMPATIBLE CHANGE.  However, existing programs will
5391 
still work; they just won't produce the smallest and simplest possible
5392 
output.  (devs.mak, gdevpbm.c)
5393 
 
5394 
</pre><h3><a name="V3.36_Interpreter"></a>Interpreter</h3><pre>
5395 
 
5396 
Fixes bugs:
5397 
	- A multi-level restore didn't free gstates allocated by
5398 
intermediate saves, causing some global VM to be lost until a garbage
5399 
collection.  (isave.h, isave.c, zvmem.c)
5400 
 
5401 
Speeds up restore by skipping the scan of the character cache if no new
5402 
names have been allocated since the save.  (zfont.c)
5403 
 
5404 
Extends the client API to allow for popping return values off the operand
5405 
stack.  (imain.h, gs.c, gsmain.c)
5406 
 
5407 
</pre><h3><a name="V3.36_Library"></a>Library</h3><pre>
5408 
 
5409 
Modifies the character oversampling algorithms to help prevent dropouts.
5410 
(gsbitops.c, gschar.c)
5411 
 
5412 
</pre>
5413 
 
5414 
<h2><a name="Version3.35"></a>Version 3.35 (internal) (5/2/95)</h2>
5415 
 
5416 
<p>
5417 
This is another internal "snapshot" version.
5418 
 
5419 
<h3><a name="V3.35_Documentation"></a>Documentation</h3><pre>
5420 
Fixes bugs:
5421 
	- Some of the file names in the `man' page had gotten out of date.
5422 
(gs.1)
5423 
	- Two references to .PageCount hadn't been changed to PageCount.
5424 
(language.doc, devarch.doc)
5425 
 
5426 
</pre><h3><a name="V3.35_Procedures"></a>Procedures</h3><pre>
5427 
 
5428 
Puts writeppmfile back in the standard Unix and DV/X configurations, since
5429 
gsftopk uses it.  Also puts the PDF reader in all 32-bit configurations.
5430 
(*.mak)
5431 
 
5432 
Moves the BMP devices to DEVICE_DEVS11 to avoid exceeding the 120-character
5433 
maximum length of the DOS command line.  (bcwin.mak, bcwin32.mak, os2.mak)
5434 
 
5435 
</pre><h3><a name="V3.35_Utilities"></a>Utilities</h3><pre>
5436 
 
5437 
Fixes bugs:
5438 
	- unix-lpr.sh didn't handle 32-bit devices.  (unix-lpr.sh)
5439 
	- unix-lpr.sh still used the name .PageCount rather than PageCount.
5440 
(unix-lpr.sh)
5441 
	- font2c gave an error when trying to write general procedures in
5442 
font dictionaries.  (font2c.ps)
5443 
 
5444 
Adds a pdf2dsc.ps utility for writing out fake DSC-compliant PostScript code
5445 
to invoke the PDF reader, for the benefit of viewer programs that aren't
5446 
PDF-aware.  (unix-end.mak, pdf2dsc.ps)
5447 
 
5448 
</pre><h3><a name="V3.35_Drivers"></a>Drivers</h3><pre>
5449 
 
5450 
Fixes bugs:
5451 
	- The TIFF drivers put out incorrect PageNumber values.
5452 
(gdevtfax.c)
5453 
	- Printer (and file output) devices got closed and reopened
5454 
unnecessarily when changing parameters.  (gdevprn.c)
5455 
	- Printer (and file output) devices didn't check for invalid formats
5456 
following a % in OutputFile.  (devs.mak, gdevprn.c)
5457 
	- 1-bit memory devices were not considered page devices, unlike all
5458 
other memory devices.  (gsdevice.c)
5459 
	- The black-and-white H-P printers didn't close the printer
5460 
properly, causing printing not to happen under MS Windows.  (gdevprn.c)
5461 
	- Some compilers didn't like initializing a const char * to NULL.
5462 
(gdevlbp8.c)
5463 
 
5464 
Changes the X Windows driver so that if Ghostview specifies a bounding box,
5465 
this also sets ImagingBBox.  (gdevxini.c)
5466 
 
5467 
At the request of a customer, adds 1-, 4-, 8-, 24-, and 32-bit-deep memory
5468 
devices that store bits in 32-bit units rather than byte units.  (gdevmem.h,
5469 
gxdevmem.h, gdevmem.c, gdevm1.c, gdevm2.c, gdevm4.c, gdevm8.c, gdevm16.c,
5470 
gdevm24.c, gdevm32.c)
5471 
 
5472 
Adds a new MS Windows printer driver, mswinpr2, that uses a DIB rather than
5473 
a DDB.  (gdevwpr2.c)
5474 
 
5475 
</pre><h3><a name="V3.35_Platforms"></a>Platforms</h3><pre>
5476 
 
5477 
Fixes bugs:
5478 
	- A routine wouldn't compile because of a bug in the SGI C compiler.
5479 
(zcsindex.c)
5480 
	- Some declarations were inconsistent when compiling for segmented
5481 
environments.  (gscie.c)
5482 
	- A routine wouldn't compile because of a bug in the VAX C compiler.
5483 
(gscie.c)
5484 
 
5485 
Turns on compiler optimization for OS/2; adds PDF support and more devices
5486 
for Win32 and OS/2.  (bcwin.mak, bcwin32.mak, os2.mak)
5487 
 
5488 
</pre><h3><a name="V3.35_Fonts"></a>Fonts</h3><pre>
5489 
 
5490 
Fixes bugs:
5491 
	- Font loading used 'setglobal' without binding it, which caused
5492 
some EPS files to signal errors.  (gs_fonts.ps)
5493 
	- A zero-length string with offset = 0 in a binary object sequence
5494 
caused an error.  (iscanbin.c)
5495 
 
5496 
Adds a LOCALFONTS switch that causes Ghostscript to load Type 1 fonts into
5497 
the current VM, rather than global VM.  According to Adobe, this is what
5498 
Adobe printers (but not other interpreters, such as DPS and CPSI) do.
5499 
(gs_init.ps, gs_fonts.ps)
5500 
 
5501 
</pre><h3><a name="V3.35_Interpreter"></a>Interpreter</h3><pre>
5502 
 
5503 
Fixes bugs:
5504 
	- The 'note' page size command caused pages to be clipped
5505 
improperly.  (gs_statd.ps)
5506 
 
5507 
Adds "word" image devices.  (gs_init.ps, zdevice.c)
5508 
 
5509 
Starts converting the interpreter to use an explicit instance pointer.  This
5510 
is very fragmentary so far and not really supported.  (main.h, gs.c,
5511 
gsmain.c, iccinit.c)
5512 
 
5513 
</pre><h3><a name="V3.35_Library"></a>Library</h3><pre>
5514 
 
5515 
Adds "word" image devices.  (gsdevice.h, gsdevice.c)
5516 
 
5517 
Removes the requirement that ImagingBBox[0] and [1] be non-negative.  (The
5518 
Adobe specification requires this, but Ghostscript supports more general
5519 
initial CTMs than the Adobe spec.)  (gsdparam.c)
5520 
 
5521 
</pre>
5522 
 
5523 
<h2><a name="Version3.34"></a>Version 3.34 (internal) (4/18/95)</h2>
5524 
 
5525 
<p>
5526 
This is a "snapshot" version made for internal purposes.  It was never
5527 
released to anyone.
5528 
 
5529 
<h3><a name="V3.34_Documentation"></a>Documentation</h3><pre>
5530 
Updates commprod.doc to be fully consistent with the AGFPL.  (commprod.doc)
5531 
 
5532 
</pre><h3><a name="V3.34_Procedures"></a>Procedures</h3><pre>
5533 
 
5534 
Fixes bugs:
5535 
	- tar_x was out of date.  (tar_x)
5536 
	- tar_gs assumed that if any PC executables were present, gs.exe
5537 
would exist.  (tar_gs)
5538 
	- jpeg.mak said the current IJG version was 5b, but the makefiles
5539 
actually referred to version 5a.  (jpeg.mak)
5540 
	- The build rule for the LIPS III driver was incorrect.  (devs.mak)
5541 
	- Some definitions in the makefiles occurred out of order.
5542 
(ansihead.mak, cc-head.mak, gcc-head.mak, unixhead.mak, unixtail.mak)
5543 
	- The build rule for dvx-gcc.mak was incorrect.  (unix-end.mak)
5544 
 
5545 
</pre><h3><a name="V3.34_Interpreter"></a>Interpreter</h3><pre>
5546 
 
5547 
Restructures the CIE caches to move much more of the computation from color
5548 
mapping time to cache loading time.  (zcie.c)
5549 
 
5550 
</pre><h3><a name="V3.34_Library"></a>Library</h3><pre>
5551 
 
5552 
Fixes bugs:
5553 
	- Color conversion of 12-bit images was very slightly inaccurate.
5554 
(gxfrac.h)
5555 
 
5556 
Changes the transfer function, black generation, and undercolor removal
5557 
caches so that they sample at 1024 points and don't interpolate, rather than
5558 
sampling at 256 points and interpolating.  This significantly improves the
5559 
speed of colored image rendering.  ****** LIMITED TO 256 POINTS BECAUSE OF
5560 
O-STACK SIZE LIMIT. ****** (gxfmap.h, gxcmap.c)
5561 
 
5562 
Restructures the CIE caches to move much more of the computation from color
5563 
mapping time to cache loading time.  (gscie.h, gscie.c)
5564 
 
5565 
</pre>
5566 
 
5567 
<h2><a name="Version3.33"></a>Version 3.33 (4/13/95)</h2>
5568 
 
5569 
<p>
5570 
A few more last-minute bug fixes.  This is, finally, the first public
5571 
release since 3.12.
5572 
 
5573 
<h3><a name="V3.33_Documentation"></a>Documentation</h3><pre>
5574 
 
5575 
Fixes bugs:
5576 
	- There was a reference to "VAX with OSF/1", which doesn't exist,
5577 
and an incorrect reference to VAX with Ultrix.  (make.doc)
5578 
	- The Unix makefiles incorrectly stated that gsdatadir was only
5579 
relevant to `make install'.  (ansihead.mak, cc-head.mak, dgc-head.mak,
5580 
gcc-head.mak)
5581 
	- Notes that DV/X users should use the zip version of the JPEG
5582 
library.  (jpeg.mak)
5583 
 
5584 
</pre><h3><a name="V3.33_Procedures"></a>Procedures</h3><pre>
5585 
 
5586 
Fixes bugs:
5587 
	- A command line had gotten too long for the MS-DOS shell.
5588 
(gs.mak)
5589 
	- The VMS DEC C script didn't explicitly select DEC C.
5590 
(vms-decc.mak)
5591 
	- The VMS MODULES.LIS omitted SPDIFF and ZFPDIFF.  (modules.lis)
5592 
	- The VMS script had an incorrect entry.  (vms.mak)
5593 
	- The `if' fix in 3.31 broke some Unix systems with different
5594 
implementations of sh.  (unix-end.mak)
5595 
	- The makefile definition of gscspace_h was out of order.  (gs.mak)
5596 
	- An extra ; got written in gconfig_.h on DV/X platforms.
5597 
(dvx-tail.mak)
5598 
	- '.' was incorrectly prepended to the library search list on DV/X
5599 
platforms.  (dgc-head.mak)
5600 
	- The build rules for unix*.mak didn't work on DV/X.  (unix-end.mak)
5601 
 
5602 
Adds a description of the -c quit switch to the help message.  (gs.c)
5603 
 
5604 
For the DV/X platform, changes /usr/include to /djgpp/include as the place
5605 
to look for header files.  I'm not sure this is always correct.
5606 
(dvx-tail.mak)
5607 
 
5608 
</pre><h3><a name="V3.33_Utilities"></a>Utilities</h3><pre>
5609 
 
5610 
Fixes bugs:
5611 
	- ps2ascii would cause an error if given a font that didn't have an
5612 
'X' character.  (ps2ascii.ps)
5613 
	- ps2ascii didn't intercept the Level 2 string display operators.
5614 
(ps2ascii.ps)
5615 
 
5616 
</pre><h3><a name="V3.33_Drivers"></a>Drivers</h3><pre>
5617 
 
5618 
Fixes bugs:
5619 
	- The Stylus Color driver had an incorrect type name.  (gdevstc.c)
5620 
 
5621 
</pre><h3><a name="V3.33_Platforms"></a>Platforms</h3><pre>
5622 
 
5623 
Fixes bugs:
5624 
	- -dBitsPerPixel= didn't work properly for MS Windows or OS/2 PM.
5625 
(gdevmswn.c, gdevpm.c)
5626 
	- The Win32 platform didn't compile properly.  (memory_.h)
5627 
 
5628 
</pre><h3><a name="V3.33_Fonts"></a>Fonts</h3><pre>
5629 
 
5630 
Improves the font substitution algorithm to take the face name into account
5631 
in more cases.  (gs_fonts.ps)
5632 
 
5633 
</pre><h3><a name="V3.33_Library"></a>Library</h3><pre>
5634 
 
5635 
Fixes bugs:
5636 
	- Unrotated black-and-white bitmaps with an inverted device X axis
5637 
were displaced in X.  (gsimage1.c)
5638 
 
5639 
</pre>
5640 
 
5641 
<h2><a name="Version3.32"></a>Version 3.32 (4/7/95)</h2>
5642 
 
5643 
<p>
5644 
More bug fixes.  This is still not a public release.
5645 
 
5646 
<h3><a name="V3.32_Documentation"></a>Documentation</h3><pre>
5647 
Further clarifies the "two-phase commit" algorithm for device put_params
5648 
procedures.  (drivers.doc, gsparam.h)
5649 
 
5650 
Adds a note about a compiler bug under Ultrix 4.4.  (make.doc)
5651 
 
5652 
</pre><h3><a name="V3.32_Procedures"></a>Procedures</h3><pre>
5653 
 
5654 
Fixes bugs:
5655 
	- Some installation scripts could fail because some implementations
5656 
of sh take the status of an `if' condition as the status of the `if'
5657 
command.  (unix-end.mak)
5658 
 
5659 
Adds "maintainer-clean" as a synonym for "real-clean".  (gs.mak)
5660 
 
5661 
Adds a -dORIENT1 switch that defines orientation = 1 as portrait for
5662 
setpage[params].  (use.doc, gs_init.ps, gs_lev2.ps, gs_statd.ps)
5663 
 
5664 
</pre><h3><a name="V3.32_Utilities"></a>Utilities</h3><pre>
5665 
 
5666 
Fixes bugs:
5667 
	- ps2ascii didn't redirect %stdout completely.  (ps2ascii.ps)
5668 
	- ps2ascii didn't preserve the local/global VM mode.  (ps2ascii.ps)
5669 
	- ps2ascii didn't handle fonts with an all-zero or missing bounding
5670 
box correctly.  (ps2ascii.ps)
5671 
	- viewpbm didn't scale the image properly.  (viewpbm.ps)
5672 
 
5673 
</pre><h3><a name="V3.32_Drivers"></a>Drivers</h3><pre>
5674 
 
5675 
Fixes bugs:
5676 
	- The CGM driver wrote out an incorrect color precision value.
5677 
(gdevcgm.c)
5678 
	- The SGI bitmap driver was named "sgi" rather than "sgirgb".
5679 
(gdevsgi.c)
5680 
	- The PCX driver didn't round up an odd line length for gray-scale
5681 
output.  (gdevpcx.c)
5682 
	- The PCX driver produced incorrect output for gray-scale or 4- or
5683 
8-bit color.  (gdevpcx.c)
5684 
 
5685 
</pre><h3><a name="V3.32_Platforms"></a>Platforms</h3><pre>
5686 
 
5687 
Fixes bugs:
5688 
	- The VMS MODULES.LIS file had gotten out of sync with the Unix
5689 
makefiles (again).  (modules.lis)
5690 
 
5691 
</pre><h3><a name="V3.32_Interpreter"></a>Interpreter</h3><pre>
5692 
 
5693 
Fixes bugs:
5694 
	- Some compilers won't accept '\l', even in the false arm of a
5695 
preprocessor conditional.  (scanchar.h)
5696 
	- A procedure was declared with an incorrect argument type.
5697 
(zcsindex.c)
5698 
	- The scaled font cache didn't copy XUIDs properly.  (bfont.h,
5699 
zfont.c, zfont2.c)
5700 
	- status could return true even if the file was closed.  (zfile.c)
5701 
 
5702 
</pre><h3><a name="V3.32_Streams"></a>Streams</h3><pre>
5703 
 
5704 
Fixes bugs:
5705 
	- The LZW filters were factored improperly.  (modules.lis, gs.mak,
5706 
vms.mak, slzwx.h, slzwc.c, slzwd.c)
5707 
 
5708 
Changes the DCTDecode filter for compatibility with Adobe implementations:
5709 
	- Ignore bytes preceding the 0xff that marks the beginning of the
5710 
JPEG data.  (sdctd.c)
5711 
	- Set MAX_BLOCKS_IN_MCU to 64.  (jpeg.mak, gsjpglib.h)
5712 
 
5713 
</pre><h3><a name="V3.32_Library"></a>Library</h3><pre>
5714 
 
5715 
Fixes bugs:
5716 
	- The "two-phase commit" for device parameters wasn't fully
5717 
implemented.  (gsiodev.c)
5718 
	- Asking for a device color map before the device was opened could
5719 
cause a crash.  (gsdparam.c)
5720 
	- The scaled font cache didn't copy XUIDs properly.  (gxfont.h,
5721 
gsfont.c)
5722 
	- 90 or 270 degree rotated black-and-white bitmaps (including
5723 
bitmapped fonts such as downloaded TrueType fonts) with an inverted device Y
5724 
axis were displaced in Y.  (gsimage1.c)
5725 
	- On high-resolution devices, parts of regions filled with halftones
5726 
could fail to be painted.  (gxclist.c)
5727 
 
5728 
</pre>
5729 
 
5730 
<h2><a name="Version3.31"></a>Version 3.31 (4/2/95)</h2>
5731 
 
5732 
<p>
5733 
A few final bug fixes for the release.  Includes significant speed
5734 
improvements for CIE color, and a first draft of a low-level CGM driver.
5735 
 
5736 
<h3><a name="V3.31_Documentation"></a>Documentation</h3><pre>
5737 
Notes that the BJC600 driver also works for the BJC4000.  (devs.mak)
5738 
 
5739 
</pre><h3><a name="V3.31_Procedures"></a>Procedures</h3><pre>
5740 
 
5741 
At the suggestion of a user, changes the default protections for installed
5742 
files on Unix and DV/X systems from 775/664 to 755/644.  (*head.mak)
5743 
 
5744 
At the suggestion of a user, adds a -dNOCIE switch to substitute DeviceGray
5745 
and DeviceRGB color spaces for CIEBasedA and CIEBasedABC spaces
5746 
respectively.  (gs_init.ps, gs_lev2.ps)
5747 
 
5748 
</pre><h3><a name="V3.31_Utilities"></a>Utilities</h3><pre>
5749 
 
5750 
Changes gslp and its relatives to use ISOLatin1Encoding for output, and to
5751 
send almost all printout to stderr rather than stdout (for use as a filter
5752 
under Unix).  (gslp.ps)
5753 
 
5754 
</pre><h3><a name="V3.31_Drivers"></a>Drivers</h3><pre>
5755 
 
5756 
Fixes bugs:
5757 
	- The fax/TIFF driver no longer exported gdev_fax_print_page, which
5758 
the DigiFax driver needs.  (gdevtfax.c)
5759 
	- The color DeskJet drivers gave an error for BitsPerPixel=3.
5760 
(gdevcdj.c)
5761 
	- The "Windows printer" driver was setting its margins in points
5762 
rather than inches.  (gdevwprn.c)
5763 
	- The BJ10 and BJ200 drivers calculated vertical skip distances
5764 
wrong.  (gdevbj10.c)
5765 
	- The BJ10 and BJ200 drivers output two garbage bytes following the
5766 
initialization string.  (gdevbj10.c)
5767 
 
5768 
Adds a preliminary driver that produces low-level CGM output.  (gdevcgml.h,
5769 
gdevcgmx.h, gdevcgm.c, gdevcgml.c)
5770 
 
5771 
</pre><h3><a name="V3.31_Platforms"></a>Platforms</h3><pre>
5772 
 
5773 
Fixes bugs:
5774 
	- The VMS files had gotten out of sync with the other makefiles
5775 
(again).  (modules.lis, vms.mak)
5776 
	- The MS Windows and OS/2-PM drivers hadn't been updated to handle
5777 
BitsPerPixel as a standard parameter.  (gdevmswn.c, gdevpm.c)
5778 
 
5779 
Removes the TIFF drivers from the Windows platform, and restores the BMP
5780 
drivers.  (bcwin.mak)
5781 
 
5782 
</pre><h3><a name="V3.31_Interpreter"></a>Interpreter</h3><pre>
5783 
 
5784 
Fixes bugs:
5785 
	- The CIE color mapping cache could produce anomalous results
5786 
for the default (all zero values) color if some of the mapping
5787 
functions were non-linear.  (zcie.c)
5788 
	- MultiMaster font substitution got confused if substituted
5789 
fonts had their FontName changed.  (gs_fonts.ps)
5790 
	- A procedure was declared as private inconsistently.  (zdevcal.c)
5791 
	- Some pointer relocation procedures didn't work correctly on
5792 
systems with sizeof(T *) &gt; sizeof(int).  (istack.c)
5793 
	- The freelist vector wasn't large enough to handle graphics state
5794 
objects on 64-bit systems, leading to severe memory sandbars.  (iastate.h)
5795 
	- The debugging messages from the allocator had gotten inconsistent
5796 
and hard to use.  (ialloc.c)
5797 
	- Mixing save/restore with allocation could cause the GC never to
5798 
get run.  (isave.c)
5799 
 
5800 
Speeds up the mapping of CIE colors.  (zcie.c)
5801 
 
5802 
Adds a .namestring operator for getting the string of a name without having
5803 
to copy it.  (zstring.c)
5804 
 
5805 
</pre><h3><a name="V3.31_Streams"></a>Streams</h3><pre>
5806 
 
5807 
Fixes bugs:
5808 
	- The IJG code needed a couple more flags set for IJG v6.
5809 
(gsjmorec.h)
5810 
	- Some pointer relocation procedures didn't work correctly on
5811 
systems with sizeof(T *) &gt; sizeof(int).  (stream.c)
5812 
 
5813 
</pre><h3><a name="V3.31_Library"></a>Library</h3><pre>
5814 
 
5815 
Fixes bugs:
5816 
	- The end-test for the fast case of monobit images was wrong,
5817 
leading to out-of-range memory accesses.  (gsimage1.c)
5818 
	- Monobit images rotated by 270 degrees displayed incorrectly.
5819 
(gsimage1.c)
5820 
	- If a Type 1 font used hint replacement, some parts of the outline
5821 
before the hint replacement ignored the old hints.  (gstype1.c)
5822 
	- Some compilers didn't accept a variable name that was the same as
5823 
a macro with parameters.  (gxht.c)
5824 
	- A procedure was declared as private inconsistently.  (gdevm1.c)
5825 
	- Some pointer relocation procedures didn't work correctly on
5826 
systems with sizeof(T *) &gt; sizeof(int).  (gdevmem.c, gsstate.c)
5827 
	- The test on FORCE_HINTS_TO_BIG_PIXELS was backwards.  This bug was
5828 
supposed to have been fixed in 3.30, but somehow the fix got lost.
5829 
(gstype1.c)
5830 
	- 90 degree rotated monobit images could drop some scan lines.
5831 
(gsimage*.c)
5832 
 
5833 
Speeds up the mapping of CIE colors.  (gscie.h, gxcmap.h, gscie.c, gxcmap.c)
5834 
 
5835 
Speeds up color images (non-interpolated, 1-8 bits per component) by adding
5836 
a cache for mapped color values.  (gximage.h, gsimage.c, gsimage1.c,
5837 
gsimage2.c)
5838 
 
5839 
Shrinks the band list file slightly by using only as many bytes as necessary
5840 
for writing out colors, rather than always using 4 bytes.  (gxclist.c,
5841 
gxclread.c)
5842 
 
5843 
</pre>
5844 
 
5845 
<h2><a name="Version3.30"></a>Version 3.30 (beta) (3/21/95)</h2>
5846 
 
5847 
<p>
5848 
More bug fixes.  The garbage collector and PDF interpreter finally appear to
5849 
work reliably.
5850 
 
5851 
<h3><a name="V3.30_Documentation"></a>Documentation</h3><pre>
5852 
Fixes bugs:
5853 
	- language.doc had gotten out of date.  (language.doc)
5854 
 
5855 
</pre><h3><a name="V3.30_Utilities"></a>Utilities</h3><pre>
5856 
 
5857 
Fixes bugs:
5858 
	- Changes in the handling of %stdout had broken ps2ascii.
5859 
(gs_dps1.ps, ps2ascii.ps)
5860 
 
5861 
Improves ps2ascii to skip empty strings and not output redundant font
5862 
changes.  (ps2ascii.ps)
5863 
 
5864 
</pre><h3><a name="V3.30_Drivers"></a>Drivers</h3><pre>
5865 
 
5866 
Fixes bugs:
5867 
	- The fax and TIFF drivers didn't free all their working storage.
5868 
(This bug was fixed in 3.27, and the fix somehow got lost.)  (gdevtfax.c)
5869 
 
5870 
Adds new drivers:
5871 
	- sgirgb, to produce SGI RGB raster files.  (gdevsgi.c)
5872 
	- tiffcrle, to produce output in TIFF "CCITT 1-dimensional Huffman
5873 
RLE" format (Group 3 fax with no EOLs). (gdevtfax.c)
5874 
	- tifflzw, to produce output in TIFF LZW format (using the existing
5875 
CCITTFaxEncode filter code). (gdevtfax.c)
5876 
	- tiffpack, to produce output in TIFF PackBits format. (gdevtfax.c)
5877 
 
5878 
</pre><h3><a name="V3.30_Interpreter_PostScript"></a>Interpreter (PostScript)</h3><pre>
5879 
 
5880 
Fixes bugs:
5881 
	- If the current screen was set with a halftone, setcolorscreen
5882 
wouldn't accept what currentcolorscreen returned.  (gs_dps1.ps)
5883 
	- debug_print_full_ref didn't print t_oparray objects correctly.
5884 
(idebug.c)
5885 
	- The internal data for a font could be allocated in a different VM
5886 
space from the font dictionary, causing dangling pointers.  (zfont2.c)
5887 
	- definefont became confused if a program failed to delete the FID
5888 
from a re-encoded font.  (This is questionable PostScript, but dvips does
5889 
it.)  (zfont2.c)
5890 
	- If a BuildChar procedure did a save before the setcachedevice and
5891 
a restore afterwards, the memory manager would attempt to free the cache
5892 
device after it had already been freed by the restore, leading to damaged
5893 
freelists.  (gschar.c)
5894 
	- setresolution (in statusdict) was ignored.  (gs_lev2.ps,
5895 
gs_statd.ps)
5896 
	- If a string containing a string containing a \ was passed to the
5897 
token operator, the \ was not recognized properly in a Level 2 environment.
5898 
(iscan.c)
5899 
	- A couple of default dictionary sizes had become too small.
5900 
(iinit.c)
5901 
 
5902 
Makes DOS EOF (control-Z, 0x1a) a self-delimiting token, like left bracket.
5903 
THIS IS A NON-BACKWARD-COMPATIBLE CHANGE, but it should not have any adverse
5904 
effects.  (gs_init.ps, iscan.c, iscantab.c)
5905 
 
5906 
Distinguishes arch_small_memory from arch_ints_are_short, and adds a new
5907 
-Z. switch to force small-memory table sizes regardless of actual memory
5908 
size.  (dstack.h, idict.c, zpcolor.c, zvmem2.c)
5909 
 
5910 
</pre><h3><a name="V3.30_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
5911 
 
5912 
Fixes bugs:
5913 
	- A page with no Contents caused an error.  (pdf_main.ps)
5914 
	- Executing a Form resource caused an error.  (pdf_draw.ps)
5915 
	- Outlines with open entries caused an error.  (pdf_main.ps)
5916 
	- Embedded Type 3 fonts caused an error.  (pdf_draw.ps, pdf_font.ps)
5917 
	- The Widths array of fonts was ignored.  (pdf_font.ps)
5918 
 
5919 
</pre><h3><a name="V3.30_Library"></a>Library</h3><pre>
5920 
 
5921 
Fixes bugs:
5922 
	- Freeing an entry in the pattern cache didn't clear the pointers to
5923 
the raster data, producing a dangling reference that confused the garbage
5924 
collector.  (gxpcmap.c)
5925 
	- The test on FORCE_HINTS_TO_BIG_PIXELS was backwards.  (gstype1.c)
5926 
	- The pattern cache bookkeeping was incorrect.  (gxpcmap.c)
5927 
	- Depending on the order in which pointers were relocated, the
5928 
garbage collector could incorrectly relocate pointers from the character
5929 
cache.  (gxfcache.h, gsfont.c, gxccache.c, gxccman.c)
5930 
 
5931 
Changes the fast case of black-and-white images so it aligns scaled images
5932 
with the device coordinate system, to improve performance.  (gsimage1.c)
5933 
 
5934 
Extends the coordinate transformation routines to handle absurdly large
5935 
translation values in the CTM as long as the final device device coordinates
5936 
are within fixed-point range.  (gxmatrix.h, gxpath.h, gschar.c, gscoord.c,
5937 
gsmatrix.c, gxhint2.c, gxpath2.c)
5938 
 
5939 
Distinguishes arch_small_memory from arch_ints_are_short, and adds a new
5940 
-Z. switch to force small-memory table sizes regardless of actual memory
5941 
size.  (gdevprn.h, gxpcolor.h, gzht.h, std.h, gsfont.c, gsht1.c, gspaint.c,
5942 
gsstate.c, gxcht.c, gxht.c, gxpcmap.c)
5943 
 
5944 
</pre>
5945 
 
5946 
<hr>
5947 
 
5948 
<h2><a name="Version3.29"></a>Version 3.29 (internal) (3/8/95)</h2>
5949 
 
5950 
<p>
5951 
Another bug-fix release.  This release processes all but 7 of the 500+ files
5952 
on the Adobe Acrobat Sampler CD-ROM without giving an error.  The garbage
5953 
collector finally appears to be stable.  This version was created for a
5954 
customer; it was not released to the general public or even to the beta test
5955 
list.
5956 
 
5957 
<h3><a name="V3.29_Documentation"></a>Documentation</h3><pre>
5958 
Documents the possible need to set LD_RUN_PATH on SVR4 platforms.
5959 
(make.doc)
5960 
 
5961 
Expands the description of the device life cycle, and of the constraints on
5962 
put_params procedures.  (drivers.doc)
5963 
 
5964 
Adds an explicit copyright notice to the Aladdin Ghostscript Free Public
5965 
License.  (PUBLIC)
5966 
 
5967 
Clarifies that the Win32s documentation also applies to Windows NT.
5968 
(make.doc)
5969 
 
5970 
</pre><h3><a name="V3.29_Procedures"></a>Procedures</h3><pre>
5971 
 
5972 
Removes the obsolete writeppmfile operator from the standard configurations.
5973 
(gs.mak)
5974 
 
5975 
Changes the Watcom makefiles to work properly with Watcom C/C++ 10.0.
5976 
(make.doc, msc.mak, watc.mak, watcwin.mak, wccommon.mak)
5977 
 
5978 
</pre><h3><a name="V3.29_Utilities"></a>Utilities</h3><pre>
5979 
 
5980 
Adds a wftopfa utility for converting the Wadalab fonts to usable Type 0 and
5981 
Type 1 form.  (wftopfa)
5982 
 
5983 
</pre><h3><a name="V3.29_Fonts"></a>Fonts</h3><pre>
5984 
 
5985 
Fixes bugs:
5986 
	- Entries added automatically by definefont (FontInfo, ExactSize)
5987 
could cause a font dictionary to become full.  (gs_fonts.ps, gs_type1.ps)
5988 
	- wrfont.ps couldn't deal with very long CharStrings.  (wrfont.ps)
5989 
 
5990 
Makes the name of the Fontmap file an easily editable parameter.
5991 
(gs_fonts.ps)
5992 
 
5993 
Adds a utility for converting the Wadalab font to usable Type 0 and Type 1
5994 
form.  (wrfont.ps, wftopfa.ps)
5995 
 
5996 
</pre><h3><a name="V3.29_Drivers"></a>Drivers</h3><pre>
5997 
 
5998 
Fixes bugs:
5999 
	- The top margin for printer (and fax) devices was computed
6000 
incorrectly, using the X resolution rather than the Y resolution.
6001 
(gdevprn.h)
6002 
	- Changing the page size or resolution of a printer device closed
6003 
and reopened the device unnecessarily.  (gdevprn.c)
6004 
	- Changing the page size of the X11 device didn't change the initial
6005 
matrix, so (0,0) didn't wind up in the lower left corner.  (gdevx.c)
6006 
	- The bit devices didn't allow changing the number of bits per
6007 
pixel.  (gdevbit.c)
6008 
 
6009 
Adds a settable .IsPageDevice boolean device parameter to the X Windows
6010 
driver.  The default value is true.  (gdevx.h, gdevx.c)
6011 
 
6012 
Changes the PPM driver so that it chooses between PBM/PGM/PPM on a
6013 
page-by-page basis, rather retaining the most general format ever required
6014 
by any page.  (gdevpbm.c)
6015 
 
6016 
</pre><h3><a name="V3.29_Interpreter_PostScript"></a>Interpreter (PostScript)</h3><pre>
6017 
 
6018 
Fixes bugs:
6019 
	- The current page device could be null, rather than an empty
6020 
dictionary.  (igstate.h, zchar.c, zdevice.c, zdevice2.c, zgstate.c)
6021 
	- The scanner didn't signal an error for names or strings that were
6022 
too long.  (iscan.c)
6023 
	- A missing header file upset the VAX compilers.  (ztype.c)
6024 
	- Some places expecting dictionary operands didn't check the type,
6025 
because they incorrectly assumed that the dict_check_read/write macro did
6026 
this.  (idict.h, zdevice2.c, zht2.c, zmisc2.c)
6027 
	- The definition of quit in systemdict wasn't disabled within
6028 
encapsulated jobs.  (gs_lev2.ps)
6029 
	- resetfile gave an error if the file was closed, rather than doing
6030 
nothing.  (zfileio.c)
6031 
	- The scanner attempted to free an uninitialized pointer if it
6032 
reached EOF after a / or //.  (iscan.c)
6033 
	- A restore in a different file than the corresponding save caused
6034 
an invalidrestore error.  (gs_init.ps)
6035 
	- The default value of EndOfData in RunLengthDecode streams was set
6036 
to false.  (zfilter.c)
6037 
	- .registerencoding didn't invoke the save machinery correctly,
6038 
leading to GC problems.  (zfont2.c)
6039 
	- The facility for overriding .printerror didn't work correctly.
6040 
(gs_init.ps)
6041 
	- gs_run_file_open wasn't public.  (gsmain.c)
6042 
	- The interpreter returned e_undefined for undefined error names,
6043 
rather than the error code.  (interp.c)
6044 
	- Allocation in system memory (specifically, adding a block to a
6045 
stack) couldn't trigger automatic garbage collection.  (interp.c, igc.c,
6046 
zvmem2.c)
6047 
	- A restore in a different invocation of gs_run_string than the
6048 
corresponding save would stop reading the string.  (files.h, gsmain.c,
6049 
iccinit.c, zfile.c)
6050 
	- The Type 1 rasterizer state included a pointer into the middle of
6051 
an object, confusing the garbage collector.  (zchar1.c, zfont1.c)
6052 
	- When the garbage collector deleted a name, it didn't zero out the
6053 
string pointer.  (iname.c)
6054 
	- On platforms where obj_align_mod &gt; 4, the memory manager could
6055 
access 1 beyond the end of its freelists.  (iastate.h)
6056 
	- makefont and scalefont didn't check the type of their font operand
6057 
soon enough.  (zfont.c)
6058 
	- restore didn't finalize the objects it freed.  (isave.c)
6059 
	- restore didn't free system VM.  (isave.c)
6060 
	- Freeing a ref array that occupied an entire chunk didn't free the
6061 
chunk.  (ialloc.c)
6062 
 
6063 
Adds a .runexec operator which implements the 'close if error' function of
6064 
run.  (zfile.c, zfileio.c)
6065 
 
6066 
Moves the obsolete writeppmfile operator into a separate file.  (zfileio.c,
6067 
zwppm.c)
6068 
 
6069 
Makes the statistics returned by the memory manager more accurate.
6070 
(ialloc.c, zvmem.c)
6071 
 
6072 
Adds a (read-only) %Calendar% IODevice.  (zdevcal.c)
6073 
 
6074 
Adds a "hook" in the character operators to allow external code to
6075 
intervene; this is needed for a customer.  (ichar.h, zchar.c, zchar2.c)
6076 
 
6077 
Makes control-D (0x04) a self-delimiting token, like left bracket.  THIS IS
6078 
A NON-BACKWARD-COMPATIBLE CHANGE, but it should not have any adverse
6079 
effects.  (scanchar.h, iscan.c, iscantab.c)
6080 
 
6081 
Changes the error stack printout so that it puts line breaks between items
6082 
iff the items are being printed with ==.  (gs_init.ps)
6083 
 
6084 
Uses finalization to close streams being freed.  (igc.c, zfile.c, ziodev.c)
6085 
 
6086 
</pre><h3><a name="V3.29_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
6087 
 
6088 
Fixes bugs:
6089 
	- Embedded Type 1 fonts that invoked save and restore while being
6090 
read caused an error.  (pdf_font.ps)
6091 
	- Large files that referenced a non-alphabetic font for the first
6092 
time late in the file could cause an error.  (pdf_main.ps)
6093 
 
6094 
</pre><h3><a name="V3.29_Streams"></a>Streams</h3><pre>
6095 
 
6096 
Fixes bugs:
6097 
	- SubFileDecode streams didn't copy partial matches of the EOD
6098 
string into their output.  (sfilter1.c)
6099 
 
6100 
Makes switching between read and write modes a stream procedure.  (stream.h,
6101 
sfile.c, sfileno.c, stream.c, zfileio.c)
6102 
 
6103 
Makes file streams close themselves when finalized.  (We can't do this for
6104 
other streams, because finalization procedures aren't allowed to free
6105 
storage explicitly.)  (stream.h, sfile.c, sfileno.c, stream.c)
6106 
 
6107 
</pre><h3><a name="V3.29_Library"></a>Library</h3><pre>
6108 
 
6109 
Fixes bugs:
6110 
	- The obsolete files gcdefs.h and gsfile.c were still included in
6111 
the fileset.
6112 
	- A number of places didn't deal with null patterns properly (p_tile
6113 
== 0).  (gxdcolor.h, gspcolor.c, gxpcmap.c)
6114 
	- The pattern tiling algorithm was numerically unstable, especially
6115 
if the X/YStep vectors were close to the axes.  (gxcolor2.h, gspcolor.c,
6116 
gxpcmap.c)
6117 
	- setdeviceparams checked the values of read-only byte array
6118 
parameters incorrectly.  (gsdparam.c)
6119 
	- The statistics macros in gxfill.c didn't use DO_NOTHING when
6120 
disabled.  (gxfill.c)
6121 
	- Changing the orientation of a device closed and reopened the
6122 
device unnecessarily.  (gsdparam.c)
6123 
	- ioerrors occurring when writing command lists weren't reported
6124 
properly.  (gxclist.h, gxclist.c)
6125 
	- Errors from device procedures weren't always propagated up to
6126 
clients.  (gsimage1.c, gsimage3.c, gxclip2.c, gxclist.c)
6127 
	- Overflowing the fixed-point translation values in the CTM caused a
6128 
floating point exception rather than a limitcheck.  (gxmatrix.h, gscoord.c)
6129 
	- charpath set the current point correctly, but didn't append a
6130 
moveto element to the path.  (This mostly affected Mathematica output.)
6131 
(gzpath.h)
6132 
	- Image devices mapped colors incorrectly.  (gdevmem.c, gdevm16.c)
6133 
	- On devices with color capability but fewer than 4 bits per pixel,
6134 
color halftones didn't work (and could cause an arithmetic exception).
6135 
(gxdither.c)
6136 
	- Black-on-white memory devices didn't map colors properly.
6137 
(gdevprn.h, gxdevice.h, gxdevmem.h, gdevmem.c, gdevm1.c, gsdevice.c)
6138 
	- Memory devices with a non-zero origin in their initial matrix
6139 
clipped the image improperly.  (gsdevice.c)
6140 
	- The Type 1 rasterizer state included a pointer into the middle of
6141 
an object, confusing the garbage collector.  (gstype1.h, gxfont1.h,
6142 
gxtype1.h, gstype1.c, gxhint2.c)
6143 
	- The band rasterizer could produce garbled output for images
6144 
(including characters) on 64-bit architectures.  (gxclread.c)
6145 
	- Bounding boxes (for pathbbox and setbbox) could be slightly
6146 
inaccurate.  (gsmatrix.c)
6147 
	- On 64-bit architectures, halftone tiles less than 16 bits wide
6148 
were handled incorrectly.  (gxclist.c)
6149 
 
6150 
Adds an .IsPageDevice boolean device parameter (normally read-only).
6151 
(gsdparam.c)
6152 
 
6153 
Removes the library code for implementing the obsolete writeppmfile
6154 
operator.  (gswppm.c)
6155 
 
6156 
Makes the default matrix (for initmatrix and defaultmatrix) a settable
6157 
parameter in the graphics state.  (gscoord.h, gzstate.h, gscoord.c,
6158 
gsdevice.c, gsdparam.c)
6159 
 
6160 
Makes the statistics returned by the memory manager more accurate.
6161 
(gsmemory.h)
6162 
 
6163 
Adds a compile-time flag to choose whether or not to force Type 1 hints to
6164 
"big pixel" boundaries when oversampling.  (gstype1.c)
6165 
 
6166 
Changes the .PageCount device parameter back to PageCount, because the
6167 
change broke some scripts.  (gsdparam.c)
6168 
 
6169 
Adds optimization for 90 degree rotated images with pure colors.
6170 
(gximage.h, gsimage.c, gsimage1.c)
6171 
 
6172 
Changes the band rasterizer so that replicated halftone tiles are written on
6173 
the band list in unreplicated form.  (gsbitops.h, gxcldev.h, gsbitops.c,
6174 
gxclist.c, gxclread.c, gxht.c)
6175 
 
6176 
Changes the .HWBitsPerPixel device parameter to BitsPerPixel.  (drivers.doc,
6177 
language.doc, gdevcdj.c, gdevstc.c, gsdparam.c)
6178 
 
6179 
</pre>
6180 
 
6181 
<h2><a name="Version3.28"></a>Version 3.28 (beta) (2/13/95)</h2>
6182 
 
6183 
<p>
6184 
Another bug-fix beta release.  The number of bugs being fixed in each of
6185 
these sub-releases does exceed the number of new bugs introduced, but the
6186 
latter number is discouragingly high.
6187 
 
6188 
<h3><a name="V3.28_Documentation"></a>Documentation</h3><pre>
6189 
Adds some information about handling VMS file attributes for files
6190 
transferred by FTP.  (use.doc)
6191 
 
6192 
</pre><h3><a name="V3.28_Procedures"></a>Procedures</h3><pre>
6193 
 
6194 
Fixes bugs:
6195 
	- unix-gcc.mak said the static linkage switch for SunOS was -Bstatic
6196 
rather than -static.  (unix-gcc.mak)
6197 
	- Some dependency lists in gs.mak were out of date.  (gs.mak)
6198 
 
6199 
</pre><h3><a name="V3.28_Utilities"></a>Utilities</h3><pre>
6200 
 
6201 
Fixes bugs:
6202 
	- markhint.ps didn't check for protected fonts.  (markhint.ps)
6203 
 
6204 
</pre><h3><a name="V3.28_Drivers"></a>Drivers</h3><pre>
6205 
 
6206 
Fixes bugs:
6207 
	- The cdj driver had a byte/char agreement problem.  (gdevcdj.c)
6208 
	- The cdj driver attempted to initialize a dynamic array.
6209 
(gdevcdj.c)
6210 
 
6211 
Removes the setting of InputAttributes and OutputAttributes from the H-P
6212 
drivers, since this causes more problems than it solves.  (gdevdjet.c)
6213 
 
6214 
</pre><h3><a name="V3.28_Interpreter"></a>Interpreter</h3><pre>
6215 
 
6216 
Fixes bugs:
6217 
	- makeoperator assigned incorrect attributes to operators. (bug
6218 
introduced in 3.27) (opdef.h, iinit.c, iutil.c, zmisc.c)
6219 
 
6220 
</pre><h3><a name="V3.28_Library"></a>Library</h3><pre>
6221 
 
6222 
Fixes bugs:
6223 
	- gs_makeimagedevice didn't set the caller's pointer to the newly
6224 
created device.  (bug introduced in 3.27) (gsdevice.c)
6225 
	- There were still some mismatches between char * and byte * values.
6226 
(gsdparam.c)
6227 
	- The halftone replication algorithm could produce inappropriately
6228 
large replicated masks.  (gxht.c)
6229 
	- stroke usually did the wrong thing for degenerate (single-point)
6230 
subpaths.  (gxstroke.c)
6231 
 
6232 
</pre>
6233 
 
6234 
<h2><a name="Version3.27"></a>Version 3.27 (beta)(withdrawn) (2/8/95)</h2>
6235 
 
6236 
<p>
6237 
Yet another bug-fix beta release.  This release had so many serious problems
6238 
(the most serious being at least one changed file that the release tool
6239 
failed to include in the fileset) that it was withdrawn less than a day
6240 
after it was issued.
6241 
 
6242 
<h3><a name="V3.27_Documentation"></a>Documentation</h3><pre>
6243 
Fixes bugs:
6244 
	- The NEWS for 3.26 didn't mention the fact that the stdxxx stream
6245 
interface used by MS Windows, OS/2, and Macintosh implementations had
6246 
changed.  (NEWS)
6247 
	- The file public.doc wasn't distributed with the previous fileset.
6248 
 
6249 
Brings the NeXTSTEP documentation up to date for NeXTSTEP releases 3.2 and
6250 
subsequent.  (make.doc)
6251 
 
6252 
</pre><h3><a name="V3.27_Procedures"></a>Procedures</h3><pre>
6253 
 
6254 
Fixes bugs:
6255 
	- Some dependency lists in gs.mak were out of date.  (gs.mak)
6256 
	- A 'fi;' was missing in the Unix install script.  (unix-end.mak)
6257 
	- There was no VMS build script for the PDF options.  (vms.mak)
6258 
	- The VMS script used CC_QUALI instead of CC_QUAL in several places.
6259 
(vms.mak)
6260 
 
6261 
</pre><h3><a name="V3.27_Utilities"></a>Utilities</h3><pre>
6262 
 
6263 
Fixes bugs:
6264 
	- ps2epsi's usage prompt referred to "pstoepsi".  (ps2epsi)
6265 
	- ps2epsi set PATH and LOCALPATH unilaterally.  (ps2epsi)
6266 
 
6267 
Comments out the sample usage line at the end of viewjpeg.ps.  (viewjpeg.ps)
6268 
 
6269 
</pre><h3><a name="V3.27_Drivers"></a>Drivers</h3><pre>
6270 
 
6271 
Fixes bugs:
6272 
	- The fax and tiff drivers didn't free all of their working storage.
6273 
(gdevtfax.c)
6274 
 
6275 
Adds user-contributed drivers for the BJC 600 and ESC/P printers.
6276 
(devs.mak, gdevcdj.c)
6277 
 
6278 
</pre><h3><a name="V3.27_Platforms"></a>Platforms</h3><pre>
6279 
 
6280 
Fixes bugs:
6281 
	- Some necessary casts of string parameters to (const byte *) were
6282 
omitted.  (gp_mswin.c, gp_os2.c)
6283 
 
6284 
Adds the psmono and bit* drivers, and removes the p*m drivers, in the OS/2,
6285 
32-bit MS-DOS, and 32-bit Windows configurations.  (bcwin32.mak, os2.mak,
6286 
watc.mak)
6287 
 
6288 
</pre><h3><a name="V3.27_Fonts"></a>Fonts</h3><pre>
6289 
 
6290 
Fixes bugs:
6291 
	- The Fontmap for Ultrix had somehow become slightly incorrect.
6292 
(Fontmap.Ult)
6293 
 
6294 
Removes the font file names from the dependency lists in cfonts.mak.  This
6295 
makes cfonts.mak readily usable with any set of fonts, but it also means
6296 
that it will always run font2c, rather than being able to avoid this if the
6297 
.c file is up to date.  (cfonts.mak)
6298 
 
6299 
</pre><h3><a name="V3.27_Interpreter"></a>Interpreter</h3><pre>
6300 
 
6301 
Fixes bugs:
6302 
	- Some operators could fail if the stdxxx streams weren't currently
6303 
open.  (files.h, zfileio.c, ziodev.c)
6304 
	- setpagedevice didn't handle unrecognized keys properly.
6305 
(gs_setpd.ps)
6306 
	- The value returned for the HWColorMap device parameter was
6307 
allocated incorrectly, confusing the garbage collector.  (iparam.c)
6308 
	- Typing ahead at the &gt;&gt;showpage&lt;&lt; prompt no longer caused all
6309 
further pages to be processed without stopping.  (gs_init.ps)
6310 
	- Setting DEVICEWIDTHPOINTS or DEVICEHEIGHTPOINTS on the command
6311 
line caused a typecheck.  (gs_init.ps)
6312 
	- The garbage collector didn't handle halftone threshold arrays
6313 
properly.  (zht2.c)
6314 
	- setdefaulttimeouts caused an error on Level 2 systems.
6315 
(gs_lev2.ps)
6316 
	- cvi and cvr weren't equivalent to token followed by a type check.
6317 
(iscan.h, iscannum.h, iscan.c, iscannum.c, ztoken.c, ztype.c)
6318 
	- In Level 2 systems, image and colorimage didn't allow 12 bits per
6319 
sample.  (zpaint.c)
6320 
	- If debugging was enabled, the garbage collector printed spurious
6321 
error messages about the allocator objects not being in a chunk.  (ialloc.c)
6322 
	- restore didn't reset the count of operator procedures, so the
6323 
operator procedure table could fill up.  Fixing this required splitting the
6324 
op_array_table into a global table and a local table.  (opdef.h, iinit.c,
6325 
iutil.c, zmisc.c)
6326 
	- .forgetsave could leave a dangling pointer in the memory manager,
6327 
causing an access error.  (ialloc.c, isave.c)
6328 
	- Freed objects weren't always marked as freed, which could confuse
6329 
the memory validator.  (ialloc.c)
6330 
	- .forgetsave didn't mark inner chunk headers as free, leading to
6331 
access errors.  (isave.c)
6332 
 
6333 
Changes the representation of operator procedures so that they point
6334 
directly to their definition in the op_array_table.  (iref.h, opdef.h,
6335 
idebug.c, igc.c, igcref.c, interp.c, zmisc.c)
6336 
 
6337 
Removes .makeglobaloperator.  (zmisc.c)
6338 
 
6339 
Adds patches to discard some common garbage produced by H-P-oriented
6340 
applications and drivers.  (gs_init.ps)
6341 
 
6342 
Changes the &gt;&gt;showpage&lt;&lt; prompt so that if the input reaches EOF, the
6343 
interpreter still stops after the next &gt;&gt;showpage&lt;&lt;, rather than processing
6344 
all subsequent pages.  This is a consequence of the bug fix that
6345 
automatically reopens the stdxxx files.
6346 
 
6347 
Adds an optional dictionary parameter for the RunLengthEncode/Decode
6348 
filters, to allow specifying EndOfData.  The default is true.  (zfilter.c)
6349 
 
6350 
Adds ByteTranslateEncode/Decode filters.  (zfilter2.c)
6351 
 
6352 
</pre><h3><a name="V3.27_Streams"></a>Streams</h3><pre>
6353 
 
6354 
Fixes bugs:
6355 
	- The K &gt; 0 option of the CCITTFaxDecode filter switched back to 2-D
6356 
encoding if an output buffer boundary fell in the middle of a 1-D line, and
6357 
signalled an error if an input buffer boundary fell in the middle of an EOL.
6358 
(scfd.c)
6359 
 
6360 
Adds an EndOfData flag to the RunLengthEncode/Decode filters.  If true, RLE
6361 
generates 128 as EOD, and RLD recognizes it; if false, RLE does not mark
6362 
EOD, and RLD ignores 128.  (srlx.h, gxclist.c, gxclread.c, sfilter1.c)
6363 
 
6364 
Adds ByteTranslateEncode/Decode streams.  (sbtx.h, sfilter2.c)
6365 
 
6366 
</pre><h3><a name="V3.27_Library"></a>Library</h3><pre>
6367 
 
6368 
Fixes bugs:
6369 
	- There were some mismatches between char * and byte * values.
6370 
(gsdparam.c)
6371 
	- Failure to round a scaling coordinate caused one-for-one
6372 
black-and-white images to render slower than they should.  (gsimage.c)
6373 
	- Setting PageSize without setting HWResolution could cause an
6374 
invalid memory access.  (gsdparam.c)
6375 
	- The garbage collector didn't handle halftone threshold arrays
6376 
properly.  (gxht.h, gsht.c, gsht1.c)
6377 
 
6378 
</pre>
6379 
 
6380 
<h2><a name="Version3.26"></a>Version 3.26 (beta) (2/1/95)</h2>
6381 
 
6382 
<p>
6383 
Yet another bug-fix beta release, still not ready for public release.
6384 
 
6385 
<h3><a name="V3.26_Documentation"></a>Documentation</h3><pre>
6386 
Fixes bugs:
6387 
	- The description of device properties had gotten out of sync with
6388 
the code.  (language.doc)
6389 
 
6390 
Splits off documentation specific to the Aladdin (non-GNU) release into a
6391 
separate file.  (readme, public.doc, unix-end.mak)
6392 
 
6393 
Adds a pointer to a collection of other free fonts (including some Cyrillic
6394 
ones) available on the net.  (public.doc)
6395 
 
6396 
</pre><h3><a name="V3.26_Procedures"></a>Procedures</h3><pre>
6397 
 
6398 
Fixes bugs:
6399 
	- On VMS systems with both VAX C and DEC C installed, the build script
6400 
used VAX C rather than DEC C.  (vms.mak)
6401 
	- zfdecode.c didn't have a build rule.  (gs.mak)
6402 
	- Several macros in the makefile were used before they were defined.
6403 
(gs.mak)
6404 
	- Several macros in the makefile were used without being defined.
6405 
(gs.mak)
6406 
 
6407 
Replaces the gssetdev, gssetmod, and gsaddmod scripts with more variants of
6408 
echogs.  (echogs.c, gs.mak)
6409 
 
6410 
</pre><h3><a name="V3.26_Utilities"></a>Utilities</h3><pre>
6411 
 
6412 
Fixes bugs:
6413 
	- The ps2ascii shell script passed a -f flag to the shell, which not
6414 
all shells recognize.  (ps2ascii)
6415 
 
6416 
</pre><h3><a name="V3.26_Drivers"></a>Drivers</h3><pre>
6417 
 
6418 
Fixes bugs:
6419 
	- Due to a typo in an initialization string, the H-P printers didn't
6420 
reset the top margin to zero.  (gdevdjet.c)
6421 
 
6422 
Adds InputAttributes and OutputAttributes entries to the H-P drivers.  (This
6423 
should probably be generic to all printers.)  (gdevdjet.c)
6424 
 
6425 
Replaces the contributed Epson Stylus Color driver with a newer version.
6426 
(devices.doc, gdevstc.c)
6427 
 
6428 
</pre><h3><a name="V3.26_Platforms"></a>Platforms</h3><pre>
6429 
 
6430 
Fixes bugs:
6431 
	- DEC C complained about 'abs' and 'exit' not being declared.  (x_.h)
6432 
	- gp_mswin.c and gp_os2.c wouldn't compile.  (gp_mswin.c, gp_os2.c,
6433 
ziodev.c)
6434 
 
6435 
</pre><h3><a name="V3.26_Interpreter"></a>Interpreter</h3><pre>
6436 
 
6437 
Fixes bugs:
6438 
	- The default CIE rendering dictionary gave everything a magenta tint.
6439 
(gs_lev2.ps)
6440 
	- Changing HWResolution and PageSize in the same call of
6441 
setpagedevice produced an incorrect HWSize.  (gsdparam.c)
6442 
	- .putdeviceparams didn't accept all the keys that .getdeviceparams
6443 
returned.  (gsdparam.c)
6444 
	- The default handler for interrupt and timeout errors didn't push a
6445 
current object (command) on the stack.  (gs_init.ps)
6446 
	- The garbage collector didn't handle strings larger than 64K
6447 
properly.  (iastate.h, ialloc.c, igcstr.c)
6448 
 
6449 
Adds media matching and Policy consultation to the implementation of
6450 
setpagedevice.  (gs_setpd.ps)
6451 
 
6452 
Adds a MaxGlobalVM system parameter.  (zmisc2.c)
6453 
 
6454 
</pre><h3><a name="V3.26_Streams"></a>Streams</h3><pre>
6455 
 
6456 
Fixes bugs:
6457 
	- The CCITTFaxEncode filter could access a byte beyond the end of
6458 
the allocated area.  (scfe.c)
6459 
	- The CCITTFaxDecode filter could get an ioerror if a buffer
6460 
boundary fell in exactly the wrong place.  (scfd.c)
6461 
 
6462 
</pre><h3><a name="V3.26_Library"></a>Library</h3><pre>
6463 
 
6464 
Fixes bugs:
6465 
	- The garbage collector didn't trace colored halftones properly.
6466 
(gzht.h)
6467 
	- The garbage collector didn't relocate the bitmap pointers in
6468 
halftone caches properly.  (gzht.h, gxht.c)
6469 
 
6470 
Adds the ability to transmit dictionaries through the param_list mechanism
6471 
(specifically, as device parameters).  This change is
6472 
non-backward-compatible only for implementors of parameter lists, which only
6473 
exist within the Ghostscript core.  (gsparam.h, iparam.h, iparam.c)
6474 
 
6475 
Removes the InitialMatrix device property.  (gsdparam.c)
6476 
 
6477 
</pre>
6478 
 
6479 
<h2><a name="Version3.25"></a>Version 3.25 (beta) (1/24/95)</h2>
6480 
 
6481 
<p>
6482 
Yet another bug-fix beta release.  There are still at least half a dozen
6483 
significant known bugs to be fixed before a public release.
6484 
 
6485 
<h3><a name="V3.25_Documentation"></a>Documentation</h3><pre>
6486 
Notes that on Unix systems, one should not edit 'makefile', but should edit
6487 
the individual subfile and run tar_cat.  THIS IS A NON-BACKWARD-COMPATIBLE
6488 
CHANGE.  (make.doc)
6489 
 
6490 
Adds information on the Macintosh implementation.  (readme)
6491 
 
6492 
</pre><h3><a name="V3.25_Procedures"></a>Procedures</h3><pre>
6493 
Fixes bugs:
6494 
	- make clean failed on Unix systems where rm -f requires at least one
6495 
file name.  (gs.mak)
6496 
	- math_.h was omitted from many dependency lists.  (gs.mak)
6497 
 
6498 
</pre><h3><a name="V3.25_Drivers"></a>Drivers</h3><pre>
6499 
 
6500 
Fixes bugs:
6501 
	- The X Windows and MS Windows draw-line routines couldn't possibly
6502 
produce sufficiently correct output (since the interface only provides integer
6503 
coordinates).  (gdevx.c, gdevwddb.c)
6504 
 
6505 
In response to patent-related actions by Unisys and CompuServe, removes the
6506 
GIF driver.  (*.mak)
6507 
 
6508 
Changes dci_std_color (and std_device_std_color_* and prn_device_std_*) so
6509 
that if the number of bits per pixel is 32, the device is defined as CMYK
6510 
rather than RGB.  (gxdevice.h)
6511 
 
6512 
Removes the tseng8 device, which is no longer useful.  (devs.mak, gdevsvga.c)
6513 
 
6514 
Adds pseudo-alpha support to the SVGA drivers, via the TextAlphaBits and
6515 
GraphicsAlphaBits device parameters.  (gdevsvga.h, gdevsvga.c)
6516 
 
6517 
Adds a user-contributed driver for the Epson Stylus Color printer.  (devs.mak,
6518 
gdevstc.c, devices.doc)
6519 
 
6520 
</pre><h3><a name="V3.25_Platforms"></a>Platforms</h3><pre>
6521 
 
6522 
Fixes bugs:
6523 
	- The VMS build scripts had gotten out of sync (again).  (vms*.mak)
6524 
 
6525 
</pre><h3><a name="V3.25_Interpreter"></a>Interpreter</h3><pre>
6526 
 
6527 
Fixes bugs:
6528 
	- The emulator name array was incorrectly declared const in one place.
6529 
(gs.c)
6530 
	- A closed file could incorrectly appear to be 'eq' to another file
6531 
(open or closed).  (iutil.c)
6532 
	- If %stdin/%stdout/%stderr was ever closed, it couldn't be
6533 
reopened.  (gs_btokn.ps, gs_init.ps, files.h, zfile.c, zfileio.c, zfilter.c,
6534 
zfproc.c, ziodev.c)
6535 
 
6536 
Changes (almost) all the operator routines to 'static'.  (z*.c)
6537 
 
6538 
</pre><h3><a name="V3.25_Library"></a>Library</h3><pre>
6539 
 
6540 
Fixes bugs:
6541 
	- The raster value for replicated tiles in the halftone cache was
6542 
incorrect, causing unaligned memory accesses.  (gxht.c)
6543 
	- stroke and strokepath could produce slightly inaccurate output
6544 
(leading to slight visible anomalies) as a result of stroke adjustment.
6545 
(gxstroke.c)
6546 
	- Attempting to draw an arc with zero radius could cause a numeric
6547 
exception.  (gspath1.c)
6548 
	- Setting the Orientation of a device to null resulted in actually
6549 
setting it to a random value.  (gsdparam.c)
6550 
	- charpath, stringwidth, and cshow attempted to remap the current
6551 
color unnecessarily.  (gschar.c)
6552 
 
6553 
Adds the ability to trace calls on the sqrt function (and possibly other math
6554 
functions in the future.)  (math_.h, gsmisc.c)
6555 
 
6556 
Adds additional interrupt checks in the banding code.  (gxclist.c, gxclread.c)
6557 
 
6558 
</pre>
6559 
 
6560 
<h2><a name="Version3.24"></a>Version 3.24 (beta) (1/17/95)</h2>
6561 
 
6562 
<p>
6563 
This was supposed to be a public release, but too many bugs showed up in 3.23,
6564 
so this is another bug-fix beta release.  This is the first release with a
6565 
working PDF reader.
6566 
 
6567 
<h3><a name="V3.24_Documentation"></a>Documentation</h3><pre>
6568 
Notes that Solaris requires using installbsd instead of install.  (make.doc)
6569 
 
6570 
</pre><h3><a name="V3.24_Procedures"></a>Procedures</h3><pre>
6571 
 
6572 
Changes 'make mostlyclean' so that it doesn't delete the Ghostscript
6573 
executable (but deletes everything else that 'make clean' does).  (gs.mak)
6574 
 
6575 
Changes the link list generator so it eliminates duplicate library requests.
6576 
(genconf.c)
6577 
 
6578 
Factors the interpreter further so as to include less unnecessary PostScript
6579 
support in the PDF interpreter.  (gs.mak, zpath.c, zpath1.c)
6580 
 
6581 
Adds a printout of the available language interpreters to the -h message.
6582 
(genconf.c, gs.c, iinit.c, gs.mak)
6583 
 
6584 
</pre><h3><a name="V3.24_Drivers"></a>Drivers</h3><pre>
6585 
 
6586 
Fixes bugs:
6587 
	- The alternate X drivers used a cast in an initializer, causing a
6588 
compilation error on some platforms.  (gdevxalt.c)
6589 
 
6590 
Adds a driver for the LaserJet IIID, including duplex printing if specified by
6591 
the Duplex page device parameter.  (gdevdjet.c)
6592 
 
6593 
Adds Orientation to the bit device.  (gdevbit.c)
6594 
 
6595 
</pre><h3><a name="V3.24_Platforms"></a>Platforms</h3><pre>
6596 
 
6597 
Fixes bugs:
6598 
	- There was an extraneous pfen-&gt; in the NT file system module, causing
6599 
a compilation error.  (gp_ntfs.c)
6600 
	- The DLL code referred to an obsolete symbol a_foreign.  (gsdll.c)
6601 
	- The VMS build scripts omitted the LaserJet 4 driver.  (vms-*.mak)
6602 
	- The VMS build scripts had several other minor errors.  (vms.mak)
6603 
 
6604 
</pre><h3><a name="V3.24_Fonts"></a>Fonts</h3><pre>
6605 
 
6606 
Fixes bugs:
6607 
	- Defining a font alias in global VM with a name that was a string in
6608 
local VM caused an error.  (gs_fonts.ps)
6609 
	- The font compiler referred to an obsolete symbol a_foreign.
6610 
(font2c.ps)
6611 
 
6612 
</pre><h3><a name="V3.24_Interpreter"></a>Interpreter</h3><pre>
6613 
 
6614 
Fixes bugs:
6615 
	- There was an extraneous '#' before an extern declaration.
6616 
(gsmain.c)
6617 
	- The interpreter could (incorrectly) attempt to expand the e-stack.
6618 
(istack.h, interp.c, istack.c)
6619 
	- zfproc.c called memcpy but didn't include memory_.h.  (zfproc.c)
6620 
	- A garbage collection occurring within a 'save' would often smash
6621 
memory.  (igc.c)
6622 
	- If the last character returned by the procedure of a procedure-based
6623 
filter was \r, readline could get an endless loop.  (zfileio.c)
6624 
	- Saving a change to a ref member of a structure confused the garbage
6625 
collector.  (isave.h, isave.c, zdict.c)
6626 
	- The -Zu debugging printout could cause an access error under rare
6627 
circumstances.  (isave.c)
6628 
	- Save objects could get allocated in global VM, causing dangling
6629 
references.  (zvmem.c)
6630 
	- The vmsave object created by the interpreter for a save didn't get
6631 
freed properly if the memory manager created an invisible save level, which
6632 
could cause the next garbage collection to crash.  (zvmem.c)
6633 
	- 'run' always printed an error message, rather than letting the
6634 
top-level control loop do it.  (gs.c, gs_init.ps)
6635 
 
6636 
Adds support for duplex devices.  (gxdevice.h, gsdparam.c, gs_statd.ps,
6637 
gs_setpd.ps)
6638 
 
6639 
Adds the beginnings of support for CID-keyed fonts.  (gs_cidfn.ps)
6640 
 
6641 
Changes the format of the stack dump printed for errors, to make it easier to
6642 
read.  (gs_init.ps)
6643 
 
6644 
</pre><h3><a name="V3.24_Interpreter_PostScript"></a>Interpreter (PostScript)</h3><pre>
6645 
 
6646 
Fixes bugs:
6647 
	- The .local/global allocation operators always allocated in system
6648 
VM.  (zsysvm.c)
6649 
	- setpage[params] caused an error.  (gs_lev2.ps)
6650 
	- If an error occurred during a cshow or (x|y|xy)show, the interpreter
6651 
freed the enumerator twice.  (zchar.c, zchar2.c)
6652 
 
6653 
Changes setpageparams so that orientation = 0 means portrait.  This is not
6654 
compatible with AGFA's convention for roll-feed devices, but it is compatible
6655 
with the more common cut-sheet printers.  (gs_statd.ps)
6656 
 
6657 
Adds meaningful values for the Emulator resource.  (gsmain.c, gs_res.ps)
6658 
 
6659 
Makes -Z? validate the state of memory before and after save and restore.
6660 
(ialloc.h, igc.h, ialloc.c, igc.c, ilocate.c, zvmem.c)
6661 
 
6662 
</pre><h3><a name="V3.24_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
6663 
 
6664 
Fixes bugs:
6665 
	- The Unix install script didn't install the PDF files if they were
6666 
present.  (unix-end.mak)
6667 
	- PDF to PostScript conversion didn't work at all.  (It still doesn't
6668 
work very well.)  (pdf_2ps.ps, pdf_main.ps)
6669 
	- Images with an Indexed color space and no Decode entry caused an
6670 
error.  (pdf_draw.ps)
6671 
	- The 'Page &lt;n&gt;' messages were printed even if QUIET was set.
6672 
(pdf_main.ps)
6673 
 
6674 
Changes the interpreter so that when it encounters an unknown operator, it
6675 
prints an error message and continues, rather than signalling an error.
6676 
(pdf_base.ps)
6677 
 
6678 
Makes F a synonym for f if there is nothing on the operand stack, to
6679 
compensate for a bug in some Adobe software.  (pdf_base.ps)
6680 
 
6681 
Changes pdfgetpage so it uses 1-origin rather than 0-origin indexing.  THIS IS
6682 
A NON-BACKWARD-COMPATIBLE CHANGE.  (pdf_main.ps)
6683 
 
6684 
</pre><h3><a name="V3.24_Streams"></a>Streams</h3><pre>
6685 
 
6686 
Fixes bugs:
6687 
	- The Group 3 2-D and Group 4 encoders produced incorrect output if a
6688 
scan line beginning with a black pixel was followed by a scan line beginning
6689 
with a white pixel.  (scfe.c)
6690 
	- A SubFileDecode filter with a count of 1 and a non-empty EOD string
6691 
would smash memory.  (sfilter1.c)
6692 
 
6693 
Updates the DCT filters so they will work with the latest version (5a) of the
6694 
IJG library.  (*.mak, jpeg.mak, sjpegerr.c)
6695 
 
6696 
</pre><h3><a name="V3.24_Library"></a>Library</h3><pre>
6697 
 
6698 
Fixes bugs:
6699 
	- A call with integer parameters to a procedure with floating point
6700 
arguments didn't work on non-ANSI compilers.  (gsimage.c)
6701 
	- Arcs could get turned into polygons if the scaling values in the CTM
6702 
were very large and the radius was (in user space coordinates) very small.
6703 
(gspath.c)
6704 
	- The current point was defined when a BuildChar procedure was called.
6705 
(This bug was documented as fixed in version 2.2!)  (gschar.c)
6706 
 
6707 
Adds support for Orientation and Duplex page device parameters, for those
6708 
devices that support these.  (gdevprn.h, gxdevice.h, gsdevice.c, gsdparam.c)
6709 
 
6710 
</pre>
6711 
 
6712 
<h2><a name="Version3.23"></a>Version 3.23 (beta) (1/5/95)</h2>
6713 
 
6714 
<p>
6715 
This is almost entirely a bug fix release.  It also includes a largely working
6716 
PDF reader.  This is intended as the beta test release for the next public
6717 
release.
6718 
 
6719 
<h3><a name="V3.23_Documentation"></a>Documentation</h3><pre>
6720 
Fixes bugs:
6721 
	- COPYLEFT, COPYING, NEWS, PUBLIC, README, and the standard Fontmap
6722 
were omitted from the 3.22 fileset.
6723 
 
6724 
Documents the use of the -oldc switch to work around a compiler crash on
6725 
the DECstation.
6726 
 
6727 
Expands and clarifies the documentation for building the DesqView/X version
6728 
with djgcc.  (make.doc)
6729 
 
6730 
Adds documentation on the "600x300" H-P inkjet printers, explaining why
6731 
this alleged higher resolution is not available.  (devices.doc)
6732 
 
6733 
Adds to the PUBLIC license a warning that it is not a GNU License, and a
6734 
requirement to include a copy of or a pointer to the License in any written
6735 
material.  (PUBLIC)
6736 
 
6737 
Documents the fact that Ghostscript *does* attempt to look up files in the
6738 
current directory first.  (use.doc)
6739 
 
6740 
</pre><h3><a name="V3.23_Procedures"></a>Procedures</h3><pre>
6741 
 
6742 
Fixes bugs:
6743 
	- In VMS.MAK, .JPEG should have been changed to .JPEG-5 in a few
6744 
places.  (vms.mak)
6745 
 
6746 
Adds the pjxl300 driver to all configurations that include the other color
6747 
DeskJet drivers.  Replaces pjet and pjetxl with pj and pjxl.  (*.mak)
6748 
 
6749 
Makes 'run' recognize PDF files if the PDF reader is included.
6750 
(pdf_main.ps)
6751 
 
6752 
</pre><h3><a name="V3.23_Utilities"></a>Utilities</h3><pre>
6753 
 
6754 
Fixes bugs:
6755 
	- viewjpeg.ps needed the test for languagelevel = 2 at the
6756 
beginning of the file.  (viewjpeg.ps)
6757 
	- prfont.ps used 'min', which isn't a standard PostScript operator.
6758 
(prfont.ps)
6759 
	- prfont.ps created Encoding vectors that weren't 256 elements
6760 
long.  (prfont.ps)
6761 
 
6762 
Adds the gsdj500 script to the installation list.  (unix-end.mak)
6763 
 
6764 
Changes the Unix "line printer" shell scripts to add the date to the page
6765 
header.  (gsbj, gsdj, gsdj500, gslj)
6766 
 
6767 
Changes ansi2knr so that it will work properly on systems where the ctype
6768 
macros don't handle 8-bit characters correctly.  (ansi2knr.c)
6769 
 
6770 
</pre><h3><a name="V3.23_Drivers"></a>Drivers</h3><pre>
6771 
 
6772 
Fixes bugs:
6773 
	- Some compilers don't allow casts in initialization expressions.
6774 
(gdevx.c, gdevxalt.c)
6775 
	- The cdj drivers didn't initialize the color_info structure
6776 
properly.  (gdevcdj.c)
6777 
 
6778 
Adds another alternate X Windows driver, x11mono, that is a black-and-white
6779 
device.  (devs.mak, gdevxalt.c)
6780 
 
6781 
Adds a user-contributed driver for the Apple Imagewriter LQ.  (devs.mak,
6782 
gdevadmp.c)
6783 
 
6784 
</pre><h3><a name="V3.23_Platforms"></a>Platforms</h3><pre>
6785 
 
6786 
Fixes bugs:
6787 
	- The VMS MODULES.LIS file had gotten out of sync with the makefile
6788 
(again); GDEVABUF and GSBITOPS were missing.  (modules.lis)
6789 
	- The VMS script file had gotten out of sync with the makefile
6790 
(again).  (vms.mak)
6791 
	- The MS Windows platform code didn't recognize Windows 95 (Windows
6792 
4.0) as equivalent to Windows NT.  (gp_mswin.c)
6793 
	- File name enumeration didn't work on OS/2 or win32.  (gp_ntfs.c,
6794 
gp_os2.c)
6795 
	- -sOutputFile= didn't work under MS Windows.  (gp_mswin.c)
6796 
 
6797 
Changes the SCO Unix direct frame buffer driver so it generates in-line
6798 
instructions to access the frame buffer, for a dramatic speed improvement.
6799 
(gdevpcfb.h, gdevsco.c)
6800 
 
6801 
</pre><h3><a name="V3.23_Fonts"></a>Fonts</h3><pre>
6802 
 
6803 
Fixes bugs:
6804 
	- If a font couldn't be found in the Fontmap, a recursion loop
6805 
sometimes occurred.  (gs_fonts.ps)
6806 
	- Aliases for global fonts weren't automatically created as global,
6807 
possibly leading to a recursion loop.  (gs_dps1.ps, gs_fonts.ps)
6808 
	- If a font was loaded into global VM within an inner save, the restore
6809 
deleted it from FontDirectory but not from SharedFontDirectory, causing a
6810 
possible recursion loop.  (gs_dps1.ps, gs_fonts.ps, idict.h, idict.c, zdict.c)
6811 
 
6812 
Further improves the algorithm for substituting for unknown fonts.
6813 
(gs_fonts.ps)
6814 
 
6815 
</pre><h3><a name="V3.23_Interpreter_PostScript"></a>Interpreter (PostScript)</h3><pre>
6816 
 
6817 
Fixes bugs:
6818 
	- zcontrol.c had an assignment of const char * to const byte *,
6819 
which some compilers don't like.  (zcontrol.c)
6820 
	- Setting an Indexed color space based on a CIE space caused an
6821 
attempt to free a random block of memory.  (zcsindex.c)
6822 
	- Some compilers don't like mixing conditionals and casts in
6823 
initialization expressions.  (iref.h)
6824 
	- Some calculations of table sizes for string garbage collection
6825 
didn't work if sizeof(long) != 4, leading to smashed strings.  (iastate.h,
6826 
ialloc.c, igcstr.c)
6827 
	- Strings longer than about 7000 bytes smashed their chunk header
6828 
and confused the garbage collector.  (ialloc.c)
6829 
	- Some compilers needed iccfont.c to include strimpl.h.
6830 
(iccfont.c)
6831 
	- The obsolete file zcspace2.c was still included in the fileset.
6832 
	- If the command line included any @-files that required searching
6833 
the library path, a limitcheck would occur.  (zfile.c)
6834 
	- The insideness testing operators caused a memory access error,
6835 
because the procedure vector hadn't been updated to provide a default
6836 
get_alpha_bits procedure.  (zupath.c)
6837 
	- gcheck didn't check for stack underflow.  (zvmem2.c)
6838 
	- cleardictstack could fail to clear the dictionary stack if the
6839 
stack had overflowed into additional blocks.  (zdict.c)
6840 
	- If the '-' switch was selected, resources weren't released
6841 
properly on exit.  (gs.c)
6842 
	- Setting a Pattern color space based on a CIE space caused an
6843 
invalid memory access.  (zcsindex.c)
6844 
	- The garbage collector didn't treat refs properly on machines with
6845 
short ints.  (igcref.c)
6846 
	- Operators with more than 16 arguments could break the
6847 
interpreter.  (interp.h, iinit.c, interp.c)
6848 
	- save/restore didn't restore the setting of the current allocator
6849 
VM (local/global).  (isstate.h, isave.c)
6850 
	- stdpre.h declared exit as an extern, instead of letting gsmain.c
6851 
declare it.  (stdpre.h, gsmain.c)
6852 
	- gs.c used fputs to print help messages rather than fprintf.
6853 
(gs.c)
6854 
	- Interrupts failed to re-execute the operation that was
6855 
interrupted.  (interp.c)
6856 
	- Low-resolution CMYK devices didn't use separate screens for each
6857 
color plane as the default.  (gs_init.ps)
6858 
	- filterdict wasn't getting undef'ed at the end of initialization.
6859 
(gs_init.ps)
6860 
	- gstate operations were broken (bug introduced in 3.02).
6861 
(zdevice2.c)
6862 
	- resourceforall didn't remove the resource dictionary from the
6863 
dictionary stack when calling the client-supplied procedure.  (gs_res.ps)
6864 
	- currentcolor with an Indexed color space returned a real rather
6865 
than an integer.  (zcolor2.c)
6866 
	- setshared / setglobal left the stack in an unobvious state if
6867 
they were given a non-Boolean argument.  (gs_dps1.ps)
6868 
	- sethalftone followed by currenthalftone returned an invalid value.
6869 
(zht2.c)
6870 
	- Empty strings produced spurious garbage collector error messages.
6871 
(gsstruct.h, scommon.h, igc.c, igcstr.c, iname.c)
6872 
	- The garbage collector didn't trace Separation color spaces properly.
6873 
(gscsepr.c)
6874 
 
6875 
Changes defineresource so that it does not, by default, make instances
6876 
read-only.  (gs_res.ps)
6877 
 
6878 
Adds .{local,global}{array,dict,packedarray,string} operators for creating
6879 
objects in a specific VM space.  (zsysvm.c, gs_dps1.ps)
6880 
 
6881 
Adds definitions of setpage and setpageparams to statusdict.  (gs_setpd.ps,
6882 
gs_statd.ps)
6883 
 
6884 
Alleviates some performance problems in the garbage collector.  (igc.c)
6885 
 
6886 
</pre><h3><a name="V3.23_Interpreter_PDF"></a>Interpreter (PDF)</h3><pre>
6887 
 
6888 
Fixes bugs:
6889 
	- PDF files that used filters with parameters caused a typecheck
6890 
error because the arguments to 'filter' were reversed.  (pdf_base.ps)
6891 
	- The (undocumented) PDF 1.1 ability to specify link and annotation
6892 
destinations indirectly was not supported.  (pdf_main.ps)
6893 
	- The (undocumented) PDF ability to specify a null page in a link
6894 
destination was not supported.  (pdf_main.ps)
6895 
	- The PDF encodings weren't loaded properly in a system with both
6896 
PS Level 2 and PDF features.  (gs_res.ps, gs_init.ps)
6897 
	- If the next line after a stream keyword was blank, the line
6898 
wasn't skipped, which matters for binary data.  (pdf_base.ps)
6899 
	- A Q operator with no matching q operator caused an error.
6900 
(pdf_draw.ps)
6901 
	- The text position wasn't preserved across a fill or stroke
6902 
operator.  (gs_pdf.ps, pdf_draw.ps)
6903 
	- Embedded Type 3 fonts didn't work.  (pdf_base.ps, pdf_draw.ps,
6904 
pdf_main.ps)
6905 
	- Masked images with no Decode value had their polarity inverted.
6906 
(pdf_draw.ps)
6907 
	- Embedded Type 1 fonts referenced from within a stream didn't
6908 
work.  (pdf_font.ps)
6909 
 
6910 
Changes the PDF code so that it automatically recognizes PDF files as such.
6911 
(pdf_main.ps)
6912 
 
6913 
Splits out the PixelDifference filters as a separate "feature".  (gs.mak)
6914 
 
6915 
</pre><h3><a name="V3.23_Streams"></a>Streams</h3><pre>
6916 
 
6917 
Fixes bugs:
6918 
	- Closing the primary input stream caused an invalid memory access.
6919 
(stream.c)
6920 
	- Increasing the size of a buffer within a save resulted in a
6921 
dangling reference after the restore.  (files.h, sfilter.h, zfile.c,
6922 
zfilter.c)
6923 
	- The garbage collector didn't properly trace streams that referenced
6924 
strings directly.  (stream.h, stream.c, ziodev.c)
6925 
 
6926 
</pre><h3><a name="V3.23_Library"></a>Library</h3><pre>
6927 
 
6928 
Fixes bugs:
6929 
	- An extraneous \ upset some compilers.  (gdevabuf.c)
6930 
	- Uncolored Patterns that completely filled their bounding box
6931 
caused an invalid memory access.  (gspcolor.c)
6932 
	- If a color image required clipping, black or white pixels might
6933 
be rendered with incorrect (random) colors.  (gxcpath.c)
6934 
	- Reference counts for color spaces were sometimes set too high, so
6935 
they would only be freed by restore or garbage collection.  (gscolor.c)
6936 
	- The character cache could get confused if the Encoding for the
6937 
character wasn't a name.  (gschar.c)
6938 
	- Character outlines were always rendered with flatness = 0,
6939 
causing very bad performance for large characters.  (gzstate.h, gschar.c,
6940 
gsimage.c, gxfill.c, gxstroke.c)
6941 
	- If a device (presumably uninitialized) had a
6942 
color_info.num_components of zero, an invalid memory access could occur.
6943 
(gsdparam.c)
6944 
	- Intersecting clipping paths that are not both rectangular didn't
6945 
properly set the outer box of new clipping path, leading to unnecessary
6946 
computation.  (gxcpath.h, gxacpath.c, gxcpath.c)
6947 
	- A call passed false instead of NULL.  (gschar.c)
6948 
	- On machines where sizeof returns a long, genarch.c failed.
6949 
(genarch.c)
6950 
	- xfonts were consulted, incorrectly, even for stroked characters.
6951 
(gxccman.c)
6952 
	- gstate/currentgstate/setgstate didn't work properly.  (gsline.c,
6953 
gsstate.c)
6954 
	- On CMYK devices needing halftoning, colors with C = M = Y were
6955 
always converted to gray shades.  (gxcmap.c)
6956 
	- Isolated horizontal lines, or the horizontal edges of rectangles,
6957 
could get drawn with one or both end pixels missing.  (gxfill.c)
6958 
 
6959 
Changes the character cache back so it oversamples characters at small
6960 
sizes.  (gschar.c)
6961 
 
6962 
Changes all occurrences of (void)x to discard(x), and defines discard in
6963 
stdpre.h as a cast to void, to make it possible to pacify compilers that
6964 
don't accept this construct for some kinds of x.  (gpcheck.h, stdpre.h,
6965 
store.h, gdevmswn.c, gp_mswin.c, gscoord.c, gxclread.c, igc.c, sfile.c,
6966 
sfileno.c, zcie.c, zht2.c, ziodev.c, zmisc1.c)
6967 
 
6968 
Increases the size of the halftone cache on large-memory machines from 35K
6969 
to 100K.  This substantially improves halftoning performance at higher
6970 
resolutions.  (gxht.c)
6971 
 
6972 
</pre>
6973 
 
6974 
<h2><a name="Version3.22"></a>Version 3.22 (beta) (11/30/94)</h2>
6975 
 
6976 
<p>
6977 
This is primarily a bug fix release.  It also includes limited anti-aliased
6978 
graphics capability.  This release was not distributed to the public.
6979 
 
6980 
<h3><a name="V3.22_Procedures"></a>Procedures</h3><pre>
6981 
 
6982 
Fixes bugs:
6983 
	- The definition of ghost_h was misplaced, so changes in it or its
6984 
antecedents didn't force recompilation of its dependents.  (gs.mak)
6985 
 
6986 
Actually implements the -Z+ switch, for forcing small stack blocks.
6987 
(interp.c)
6988 
 
6989 
Makes the -dSAFER switch disable the %pipe syntax for file names, even for
6990 
reading.  (gs_init.ps)
6991 
 
6992 
</pre><h3><a name="V3.22_Drivers"></a>Drivers</h3><pre>
6993 
 
6994 
Fixes bugs:
6995 
	- The dfax drivers incorrectly set EncodedByteAlign to false.
6996 
(gdevdfax.c)
6997 
	- softwareValue and dateTimeValue were declared as byte rather than
6998 
char.  (gdevtfax.c)
6999 
 
7000 
</pre><h3><a name="V3.22_Platforms"></a>Platforms</h3><pre>
7001 
 
7002 
Fixes bugs:
7003 
	- The VMS DEC C compilers declare delete in unixio.h, and doesn't
7004 
declare unlink anywhere.  (stdio_.h)
7005 
	- The VMS compilers declare malloc and free in stdlib.h, which
7006 
wasn't being included in malloc_.h.  (malloc_.h)
7007 
	- The SCO Unix C compiler needs both &lt;sys/time.h&gt; and &lt;time.h&gt;.
7008 
(time_.h)
7009 
	- The VMS compilers declare abs in stdlib.h, which wasn't being
7010 
included anywhere.  (gshtscr.c)
7011 
	- The definition for A4 paper in VMS-AXP.MAK was incorrect.
7012 
(vms-axp.mak)
7013 
 
7014 
Renames VMS-AXP.MAK as VMS-DECC.MAK, with some changes that make it
7015 
appropriate for DEC C on both VAX and AXP platforms.  (vms-axp.mak =&gt;
7016 
vms.decc.mak)
7017 
 
7018 
</pre><h3><a name="V3.22_Fonts"></a>Fonts</h3><pre>
7019 
 
7020 
Fixes bugs:
7021 
	- gs_kanji.ps got an invalidaccess error.  (gs_kanji.ps)
7022 
 
7023 
</pre><h3><a name="V3.22_Interpreter"></a>Interpreter</h3><pre>
7024 
 
7025 
Fixes bugs:
7026 
	- An off-by-1 test in the roll operator caused it to smash the
7027 
stack if the operand stack had overflowed into additional blocks.
7028 
(zstack.c)
7029 
	- The default CIE color rendering dictionary didn't assume a
7030 
reasonable intermediate (XYZ) space.  (gs_lev2.ps)
7031 
	- CIE color mapping tables weren't traced properly by the garbage
7032 
collector.  (gscie.h, gscie.c, zcie.c)
7033 
	- If the very last character of a file was a ^M, the scanner
7034 
(incorrectly) signaled a syntaxerror.  (iscan.c)
7035 
	- If an operator could return both a typecheck and a
7036 
stackunderflow, it always returned a stackunderflow, which doesn't match
7037 
the behavior of Adobe interpreters.  (opcheck.h, idparam.c, interp.c,
7038 
iutil.c, z*.c)
7039 
	- astore, dictstack, and execstack could return a spurious
7040 
invalidaccess error (or fail to detect an invalid access) if the operand
7041 
stack had overflowed into additional blocks.  (istack.c)
7042 
	- The garbage collector didn't relocate pointers to names!  (Bug
7043 
introduced in 3.20.)  (iname.h)
7044 
	- If the dictionary stack overflowed into additional blocks, the
7045 
cached value pointer for a name could get set incorrectly, and also not get
7046 
relocated by the garbage collector.  (idict.c)
7047 
	- If the dictionary stack overflowed into additional blocks, the
7048 
post-GC fixup of cached value pointers in names could cause an addressing
7049 
error.  (igc.c)
7050 
	- With the -Z? switch set, the garbage collector could incorrectly
7051 
report that objects or strings weren't in any chunk.  (igc.c)
7052 
	- &lt;&lt; /a 1 /a 2 &gt;&gt; /a get gave the value 2 rather than 1.
7053 
(gs_init.ps)
7054 
	- Numbers in binary object sequences and encoded number arrays
7055 
didn't work properly on machines where sizeof(short) != 2 or sizeof(long)
7056 
!= 4.  (ibnum.c)
7057 
	- The put operator for dictionaries allowed null as a key.
7058 
(idict.h, idict.c)
7059 
	- &gt;&gt; didn't give an error if there were an odd number of values on
7060 
the stack above the next mark.  (gs_init.ps)
7061 
	- Operations that explicitly freed ref objects (setting a CIE
7062 
colorspace, resizing a dictionary, popping a block off a stack) could
7063 
corrupt storage.  (ialloc.c)
7064 
	- The -Z@ switch, which fills freed blocks with a recognizable bit
7065 
pattern, could incorrectly overwrite freed blocks in previous save levels,
7066 
causing invalid memory accesses.  (ialloc.c)
7067 
	- Since streams freed by a restore weren't marked as free, they
7068 
could confuse the garbage collector and lead to invalid memory accesses.
7069 
(zfile.c)
7070 
	- If one of the built-in dictionaries overflowed during
7071 
initialization, no error was reported -- entries were simply discarded.
7072 
(iinit.c)
7073 
	- If the level2.dev feature was combined with certain other
7074 
features, the current languagelevel was 2 when some gs_*.ps files were
7075 
loaded, causing them to load incorrectly.  (gs_btokn.ps, gs_setpd.ps)
7076 
	- If readline read a line that ended with only a CR (no LF)
7077 
followed by an end-of-file, it incorrectly closed the stream.  (zfileio.c)
7078 
 
7079 
Adds a .cond operator, similar to the Lisp multi-arm conditional.
7080 
(zcontrol.c)
7081 
 
7082 
Adds a .makeglobaloperator operator, allowing the definition of operator
7083 
procedures in local VM that turn into global operators, provided the save
7084 
level is zero.  (iref.h, opdef.h, iinit.c, interp.c, zmisc.c)
7085 
 
7086 
Note: the fix for returning typecheck vs. stackunderflow requires that all
7087 
operators (or other code) that uses return_error(e_typecheck) to indicate
7088 
an incorrect object type on the operand stack must change this to
7089 
return_op_typecheck(op), where op points to the operand.  THIS IS A
7090 
NON-BACKWARD-COMPATIBLE CHANGE.
7091 
 
7092 
Implements string array and name array parameters for parameter lists.
7093 
(gsparam.h, iparam.c)
7094 
 
7095 
Brings filterdict inside the INITIAL_DICTIONARIES conditional.  (iinit.c)
7096 
 
7097 
Adds a .currentscreenlevels operator that returns the number of
7098 
distinguishable halftone levels.  (zht.c)
7099 
 
7100 
</pre><h3><a name="V3.22_Streams"></a>Streams</h3><pre>
7101 
 
7102 
Fixes bugs:
7103 
	- The 2-D case of CCITTFaxDecode could get confused by an input
7104 
data buffer boundary that fell immediately after a horizontal code.
7105 
(scfd.c)
7106 
	- The LZW decoder didn't detect invalid data unless DEBUG was
7107 
selected at build time.  (slzwd.c)
7108 
 
7109 
</pre><h3><a name="V3.22_Library"></a>Library</h3><pre>
7110 
 
7111 
Fixes bugs:
7112 
	- The clipping region accumulator could refer to a clipping
7113 
rectangle even after it had been freed.  (No effect on execution unless the
7114 
-Z@ switch was selected.)  (gxacpath.c)
7115 
	- setbbox expanded the bounding box, but didn't place a limit on
7116 
further path elements, if the current path wasn't empty.  (gsdps1.c)
7117 
	- setbbox didn't make sufficient allowance for rounding.
7118 
(gsdps1.c)
7119 
 
7120 
Implements the ProcessColorModel parameter (read-only) for all devices.
7121 
(gsdparam.c)
7122 
 
7123 
Adds a gs_currentscreenlevels procedure that returns the number of
7124 
distinguishable halftone levels.  (gsht.c)
7125 
 
7126 
</pre>
7127 
 
7128 
<h2><a name="Version3.21"></a>Version 3.21 (beta) (11/17/94)</h2>
7129 
 
7130 
<p>
7131 
This is primarily a bug fix release.  It also includes a substantial
7132 
improvement in the Type 1 font hinting algorithms.  This release was not
7133 
distributed to the public.
7134 
 
7135 
<h3><a name="V3.21_Documentation"></a>Documentation</h3><pre>
7136 
Fixes bugs:
7137 
	- The `man' page referred to gnu.ghostscript.bug rather than
7138 
comp.lang.postscript.  (gs.1)
7139 
 
7140 
Documents the special entries in operator definition tables that allow
7141 
switching dictionaries.  (opdef.h)
7142 
 
7143 
</pre><h3><a name="V3.21_Procedures"></a>Procedures</h3><pre>
7144 
 
7145 
Moves the definition of JSRCDIR to the individual platform makefiles, to
7146 
make it easier to change on platforms that don't have file links.  (*.mak)
7147 
 
7148 
</pre><h3><a name="V3.21_Utilities"></a>Utilities</h3><pre>
7149 
 
7150 
Fixes bugs:
7151 
	- ansi2knr didn't recognize that a line ending with } couldn't be a
7152 
function definition.  (ansi2knr.c)
7153 
	- ps2epsi always returned an empty bounding box.  (ps2epsi,
7154 
ps2epsi.bat)
7155 
 
7156 
</pre><h3><a name="V3.21_Drivers"></a>Drivers</h3><pre>
7157 
 
7158 
Fixes bugs:
7159 
	- The bitrgb device had an invalid depth of 3.  (gdevbit.c)
7160 
 
7161 
Replaces the color mapping code in the X driver with a much faster
7162 
algorithm, courtesy of Tim Theisen.  (gdevx.h, gdevx.c, gdevxini.c)
7163 
 
7164 
</pre><h3><a name="V3.21_Platforms"></a>Platforms</h3><pre>
7165 
 
7166 
Fixes bugs:
7167 
	- Two variable names were misspelled.  (gdevpm.c, gp_mswin.c)
7168 
	- It wasn't possible to compile a non-DLL configuration under OS/2.
7169 
(os2.mak)
7170 
	- Compilation under Microsoft C/C++ 8.0 gave errors.  (gp_mswin.h,
7171 
gp_mswin.c, gshtscr.c)
7172 
 
7173 
Adds some more devices to the OS/2 makefile.  (os2.mak)
7174 
 
7175 
</pre><h3><a name="V3.21_Fonts"></a>Fonts</h3><pre>
7176 
 
7177 
Fixes bugs:
7178 
	- wrfont.ps, and hence bdftops, didn't write out the FontType or
7179 
PaintType.  (Bug introduced since 2.6.1)  (wrfont.ps)
7180 
	- wrfont.ps omitted a 'begin' and 'end', causing -! or -| to be
7181 
undefined when the font was loaded.  (Bug introduced since 2.6.1)
7182 
(wrfont.ps)
7183 
 
7184 
</pre><h3><a name="V3.21_Interpreter"></a>Interpreter</h3><pre>
7185 
 
7186 
Fixes bugs:
7187 
	- make_tasv_old called make_tasv_new with extra arguments.
7188 
(store.h)
7189 
	- currentcacheparams only returned 2 values instead of 3.
7190 
(zfont.c)
7191 
	- ustroke popped one element too many off the stack if a matrix was
7192 
supplied.  (zupath.c)
7193 
	- inu[eo]fill popped one element too many off the stack.
7194 
(zupath.c)
7195 
	- The color rendering dictionary was initialized to null rather
7196 
than a valid dictionary.  (gs_lev2.ps)
7197 
	- An invalid IODevice resource named "9" got created.  (gs_res.ps)
7198 
	- bytesavailable often caused an error rather than returning -1.
7199 
(zfileio.c, stream.c)
7200 
	- The insideness testing operators always returned true if the
7201 
aperture was defined by a user path rather than a point.  (zupath.c)
7202 
	- If INITIAL_DICTIONARIES was defined in the makefile, the
7203 
definition of the initial_dictionaries array was missing a comma.
7204 
(iinit.c)
7205 
	- Even if userdict appeared in INITIAL_DICTIONARIES, gs_init.ps set
7206 
its maxlength to 200.  (gs_init.ps)
7207 
	- Setting a CIE color space left a garbage value on the stack.
7208 
(zcie.c)
7209 
	- If a file or filter was opened and then closed, opening a file
7210 
subsequently within a 'save' could lead to a memory access error in the
7211 
garbage collector.  (zfile.c)
7212 
	- Setting an Indexed or Separation color space could cause a crash
7213 
either in the garbage collector or when printing out the e-stack.
7214 
(icsmap.h, zcsindex.c, zcssepr.c)
7215 
	- Invoking a filter with an invalid data source or sink could cause
7216 
a memory access error (bug introduced in 3.20).  (zfilter.c)
7217 
	- Invoking stringwidth on a font whose BuildChar procedure did a
7218 
save could cause a memory manager error or infinite loop, because
7219 
stringwidth attempted to use an inapplicable shortcut.  (gschar.c)
7220 
	- The bounding box for rendering stroked Type 1 characters didn't
7221 
take square caps and miter joins into account.  (gs_type1.ps)
7222 
	- Invoking filter with DCTDecode or DCTEncode could cause an
7223 
addressing error if no dictionary argument was supplied.  (zfdctd.c,
7224 
zfdcte.c)
7225 
	- The Generic resource, the Font resource, and half a dozen
7226 
resources with no predefined instances all shared the same Instances
7227 
dictionary.  (gs_res.ps)
7228 
	- The temporary null device allocated for stringwidth was never
7229 
freed.  (gschar.h, gschar.c, zchar.c)
7230 
	- Internal operators, and structures that might be freed on stack
7231 
unwinding, could "escape" from the e-stack.  (zcontrol.c, ztype.c)
7232 
	- makefont and scalefont didn't properly handle a font whose
7233 
Encoding had been changed.  (bfont.h, zfont.c, zfont2.c)
7234 
	- Type 1 fonts with PaintType = 2 incorrectly checked for an xfont.
7235 
(gxfont.h, gschar.c, gsfont.c, zchar1.c, zfont1.c, zfont2.c)
7236 
	- Specifying a string argument with -d...=(...) or -d...=&lt;...&gt;
7237 
would cause an invalidaccess error.  (gs.c)
7238 
	- The environment for encapsulated jobs didn't rebind quit to stop
7239 
in userdict.  (gs_lev2.ps)
7240 
	- restore didn't deal properly with open files on the e-stack.
7241 
(zvmem.c)
7242 
	- Even with the '-' switch, Ghostscript would try to read ahead in
7243 
the input stream rather than processing input character-by-character.
7244 
(ziodev.c)
7245 
	- If an error occurred with a unreadable dictionary on any stack,
7246 
the standard error printer would get into an error loop and exit the
7247 
interpreter.  (gs_init.ps)
7248 
	- The for_roots macro in igc.c used ap rather than mem as its
7249 
second formal parameter.  (This typo had no effect on the executable
7250 
program.)  (igc.c)
7251 
	- If saving the stacks for an error caused a GC request, a value
7252 
could get stored into an improper variable on the C stack, causing havoc.
7253 
(interp.c)
7254 
	- setdash checked to make sure that the distance array had read
7255 
access; Adobe interpreters don't check this.  (zgstate.c)
7256 
	- The roots for gs_run_string and gs_interpret weren't registered
7257 
properly, which could cause a dangling reference in the case of a restore
7258 
whose save had been done earlier.  (gsmain.c, interp.c)
7259 
 
7260 
Adds an OpenOutputFile Boolean device parameter for printer devices; if
7261 
true, the device opens the OutputFile at the time the device is opened,
7262 
instead of waiting for the first showpage.  This helps with synchronization
7263 
when the OutputFile is a pipe.  (gdevprn.h, gdevprn.c)
7264 
 
7265 
Changes the BEGIN/END_OP_DEFS macros to require an explicit { and } at each
7266 
use.  (gsmain.c, interp.c, z*.c)
7267 
 
7268 
Arranges things so that the operators that the interpreter handles
7269 
specially are assigned the first N operator indices [internal change only].
7270 
(interp.h, iinit.c, interp.c)
7271 
 
7272 
Changes the operators max and min to .max and .min, to avoid conflicts with
7273 
PostScript programs that use these names for variables and also use 'bind'.
7274 
THIS IS A NON-BACKWARD-COMPATIBLE CHANGE from programs that depend on
7275 
'bind' binding in these operators; however, we have also defined procedures
7276 
max and min that just call the operators, which should take care of any
7277 
ordinary code.  (*.ps, zrelbit.c)
7278 
 
7279 
</pre><h3><a name="V3.21_Streams"></a>Streams</h3><pre>
7280 
 
7281 
Fixes bugs:
7282 
	- The pfb_state pointer in the eexecDecode filter state wasn't
7283 
marked as traceable for the garbage collector.  (sfilter.h)
7284 
	- The eexec decoding filter could access invalid memory or return
7285 
garbage under some conditions.  (Bug introduced in 3.12.)  (zmisc1.c)
7286 
	- The eexec decoding filter would incorrectly ask for more input if
7287 
the output buffer was full.  (seexec.c)
7288 
 
7289 
</pre><h3><a name="V3.21_Library"></a>Library</h3><pre>
7290 
 
7291 
Fixes bugs:
7292 
	- Some compilers reserve the word 'try'.  (gshtscr.c)
7293 
	- Some compilers don't like line continuations (\) within a
7294 
preprocessor macro formal parameter list.  (gdevprn.h, gxdevice.h)
7295 
	- Memory devices created with an inverted palette (0=white,
7296 
1=black) interchanged white and black in fill operations.  (gdevmem1.c)
7297 
	- The 'bits' variable in mem_mono_copy_mono was unused on
7298 
little-endian machines.  (gdevmem1.c)
7299 
	- Some garbage collector procedures were declared 'private'
7300 
inconsistently.  (gscie.c)
7301 
	- The new anti-aliased text capability accidentally caused all
7302 
characters to be oversampled.  (gschar.c)
7303 
	- Type 1 fonts with PaintType = 2 and StrokeWidth = 0 came out with
7304 
many pixels missing because of oversampling.  (gschar.c)
7305 
	- Type 1 font stem hints were not being processed correctly.
7306 
(gstype1.h, gxtype1.h, gstype1.c, gxhint2.c, gxhint3.c, gxpath.c)
7307 
	- The tracing message for 9/7 composite fonts incorrectly
7308 
identified them as 1/7 fonts.  (gschar0.c)
7309 
	- If a 1/7 or 9/7 composite font was a child of a non-modal font,
7310 
the font number of the child font was computed incorrectly.  (gschar0.c)
7311 
 
7312 
Splits up the various memory devices into one file per depth [internal
7313 
change only].  (gdevm*.c)
7314 
 
7315 
</pre>
7316 
 
7317 
<h2><a name="Version3.20"></a>Version 3.20 (beta) (10/31/94)</h2>
7318 
 
7319 
<p>
7320 
This version contains some support for a PDF interpreter; however, the PDF
7321 
code itself is not ready for release yet.  It also includes anti-aliased text
7322 
capability.  This release was not distributed to the public.
7323 
 
7324 
<h3><a name="V3.20_Documentation"></a>Documentation</h3><pre>
7325 
Notes that the FAQ has moved to smallo.ruhr.de:pub/ghost/gs.faq.  (readme)
7326 
 
7327 
Documents various implementation limits.  (language.doc)
7328 
 
7329 
</pre><h3><a name="V3.20_Procedures"></a>Procedures</h3><pre>
7330 
 
7331 
Fixes bugs:
7332 
	- bcp.dev wasn't included in the list of dependencies for
7333 
level1.dev.  (gs.mak)
7334 
 
7335 
Changes the printout of version numbers so that it is always A.BC,
7336 
rather than A.B if C is zero.  (gs.c, gs_init.ps)
7337 
 
7338 
</pre><h3><a name="V3.20_Utilities"></a>Utilities</h3><pre>
7339 
 
7340 
Fixes bugs:
7341 
	- font2c didn't correctly handle Metrics or Metrics2 dictionaries
7342 
whose entries were arrays rather than scalars.  (font2c.ps, ccfont.h,
7343 
iccfont.c)
7344 
	- font2c didn't handle CDevProc.  (font2c.ps, ccfont.h, iccfont.c)
7345 
	- genconf could get a stack overflow on small machines.
7346 
(genconf.c)
7347 
 
7348 
Changes mergeini.ps so it can take arguments on the command line specifying
7349 
the input and output files.  (mergeini.ps)
7350 
 
7351 
Adds a gsdj500 shell script to parallel gsdj500.bat.  (gsdj500)
7352 
 
7353 
</pre><h3><a name="V3.20_Drivers"></a>Drivers</h3><pre>
7354 
 
7355 
Fixes bugs:
7356 
	- The X driver didn't mask dynamically assigned colors properly, so
7357 
it could request the same color over and over again.  (gdevx.c)
7358 
 
7359 
Adds two alternate X Windows drivers, for helping debug drivers with other
7360 
color models:
7361 
	- x11alpha, an RGB device with 4-bit alpha capability (for
7362 
	  copy_alpha only);
7363 
	- x11cmyk, a 1-bit-per-component CMYK device.
7364 
(devs.mak, gdevxalt.c)
7365 
 
7366 
Changes the left margin of the lj4dith driver to 0.26".  (gdevcdj.c)
7367 
 
7368 
</pre><h3><a name="V3.20_Platforms"></a>Platforms</h3><pre>
7369 
 
7370 
Fixes bugs:
7371 
	- If &lt;sys/time.h&gt; didn't exist, time_.h didn't always include
7372 
&lt;time.h&gt;.  (time_.h)
7373 
	- The OS/2 platform wouldn't compile.  (gdevpm.c)
7374 
	- The auxiliary VMS command files sometimes got blank lines
7375 
inserted when going through EOL conversion.  (vms.mak; delete gs_.com)
7376 
	- The VMS makefiles didn't include the Level 1 operators in
7377 
level1.dev.  (vms.mak)
7378 
	- The VMS gcc makefile didn't handle undefined DEVICE_DEVSn
7379 
variables properly.  (vms*.mak)
7380 
	- The VMS makefiles didn't recognize DEVICE_DEVS{1,2,5,7}.
7381 
(vms.mak)
7382 
 
7383 
At the request of a Unix expert, changes all the Unix shell scripts to use
7384 
exec gs ... "$@" rather than gs ... $*.  (gsnd, gsbj, gsdj, gslj, gslp)
7385 
 
7386 
Modifies the JPEG library so that it uses 4K less of the automatic data
7387 
segment in 16-bit environments.  (bcwin.mak, jpeg.mak, sjpeg.c, sjpegerr.c)
7388 
 
7389 
Adds the bmp drivers back into the 16-bit MS Windows executable, since they
7390 
will fit now.  (bcwin.mak)
7391 
 
7392 
</pre><h3><a name="V3.20_Fonts"></a>Fonts</h3><pre>
7393 
 
7394 
Makes the font substitution algorithm recognize the word Roman as calling
7395 
for a serif font.  (gs_fonts.ps)
7396 
 
7397 
</pre><h3><a name="V3.20_Interpreters"></a>Interpreters</h3><pre>
7398 
 
7399 
Fixes bugs:
7400 
	- The fix in 3.13 for the inexact function values at 0 didn't work.
7401 
(zcontrol.c)
7402 
	- Level 1 configurations referenced an undefined procedure
7403 
gs_currenthalftone.  (gsht.c, gsht1.c)
7404 
	- Specifying any device properties (including -r and -g) on the
7405 
command line caused an error.  (gs_init.ps)
7406 
	- The forward declaration of cfont_name_array_create was
7407 
incorrect.  (iccfont.c)
7408 
	- save and restore could get called before the graphics state stack
7409 
had been initialized properly.  (gs_mex_e.ps)
7410 
	- Some encodings weren't loaded properly.  (gs.mak, gs_mex_e.ps,
7411 
gs_mro_e.ps, gs_pdf_e.ps, gs_wan_e.ps)
7412 
	- Zero-height images were allowed, but zero-width images
7413 
weren't.  (zpaint.c)
7414 
	- Neither zero-width nor zero-height images popped their
7415 
arguments from the operand stack.  (zpaint.c)
7416 
	- lib_file_fopen overwrote its file name argument, causing havoc
7417 
with @-files.  (gxiodev.h, gdevpipe.c, gsiodev.c, zfile.c)
7418 
	- The garbage collector got confused if there were any arrays or
7419 
dictionaries with 8K or more elements.  (igcref.c)
7420 
	- &gt;&gt; could leave the stacks in a questionable state if it failed.
7421 
(gs_init.ps)
7422 
	- The Category resource category didn't implement undefineresource.
7423 
(gs_res.ps)
7424 
	- When the token operator read the last token from a string, it
7425 
left an unchanged string on the stack instead of an empty string.
7426 
(stream.c)
7427 
	- noaccess didn't give an invalidaccess error when applied to the
7428 
permanent dictionaries.  (dstack.h, idict.c, ztype.c)
7429 
	- Overflowing the exec stack wasn't handled properly.  (istack.h,
7430 
istack.c)
7431 
	- The garbage collector cleared the cached value pointers in names,
7432 
causing interpretation to slow down substantially.  (idict.c, igc.c,
7433 
iname.c)
7434 
	- 0 dict created a dictionary with a maxlength of 1.  (idict.c)
7435 
 
7436 
Changes the default size of the execution stack from 150 to 250, to match
7437 
the Adobe "typical" value.  (interp.c)
7438 
 
7439 
Moves the operator definitions out of the automatic data segment.
7440 
(opdef.h, iinit.c, z*.c)
7441 
 
7442 
Adds operators that allow creation of objects in system space:
7443 
.systemvmstring, .systemvmarray, .systemvmpackedarray, .systemvmdict,
7444 
.systemvmcheck.  (zsysvm.c)
7445 
 
7446 
Renames gcdefs.h as gscdefs.h.
7447 
 
7448 
Allocates names in system space rather than global space.  (gsmain.c)
7449 
 
7450 
Changes the memory manager so that it allows programs to create objects in
7451 
system space.  (iref.h, iutil.h, ivmspace.h, ...)
7452 
 
7453 
Changes the implementation of filters so they appear in their own
7454 
dictionary named filterdict.  (gs_init.ps, z*.c)
7455 
 
7456 
Changes the implementation of color spaces so each one has its own
7457 
setcolorspace procedure, defined in a new dictionary named
7458 
colorspacedict.  (gs_lev2.ps, z*.c)
7459 
 
7460 
Adds a new debugging switch, $, that always initializes all fields in a
7461 
ref, in order to keep Purify happy.  (store.h)
7462 
 
7463 
</pre><h3><a name="V3.20_Library"></a>Library</h3><pre>
7464 
 
7465 
Fixes bugs:
7466 
	- The page size for image devices was always set to (0, 0).
7467 
(gsdevice.c)
7468 
	- The PageSize computation in gx_default_put_params could overflow
7469 
on 16-bit machines.  (gsdparam.c)
7470 
	- An omitted 'static' on an initialized array caused a compiler
7471 
error.  (gxccman.c)
7472 
	- If interpolated image rendering was requested but not
7473 
actually carried out, gs_image_cleanup could attempt to free a random
7474 
pointer.  (gsimage.c)
7475 
	- Some compilers only retain 23 characters of procedure names, but
7476 
some procedure names weren't unique in the first 23 characters.  (gscie.c,
7477 
gscolor.c, gscolor1.c, gxcmap.c)
7478 
	- The garbage collector didn't trace device colors properly.
7479 
(gxdcolor.h, gzht.h, gsimage1.c, gspcolor.c, gxcht.c, gxcmap.c, gxdraw.c,
7480 
gxht.c)
7481 
	- For CMYK devices, the transfer functions were being applied to
7482 
the CMYK values rather than the complemented RGBW values.  (gxcmap.c)
7483 
	- Memory devices used their own color mapping procedures rather
7484 
than those of the target; this could cause incorrect colors for patterns on
7485 
devices with more than 1 bit per pixel.  (gxdevmem.h, gdevmem1.c, gdevpm.c,
7486 
gdevprn.c, gdevwdib.c, gschar.c, gsdevice.c, gxccache.c, gxccman.c,
7487 
gxclip2.c, gxclread.c, gxpcmap.c)
7488 
	- The garbage collector didn't trace image enumerators properly in
7489 
the image_render_simple case.  (gsimage.c)
7490 
	- stroke produced different-looking output for thin (zero-width)
7491 
lines depending on whether or not clipping was invoked.  (gxstroke.c)
7492 
	- If a clipping list changed from multiple rectangles to a single
7493 
rectangle, it could fail to clip properly thereafter.  (gxacpath.c)
7494 
 
7495 
Adds two new device procedures: alpha_bits and copy_alpha.  This change is
7496 
backward-compatible for all existing devices.  (gdevmem.h, gxdevice.h,
7497 
gsdevice.c, gxclip2.c, gxclist.c, gxcpath.c)
7498 
 
7499 
Changes the implementation of color halftones so that, when appropriate, it
7500 
generates a single cell and uses the device tile_rectangle procedure.
7501 
(gzht.h, gsht.c, gxcht.c, gxclist.c, gxclread.c)
7502 
 
7503 
Adds partial support for the Orientation page device parameter.
7504 
(gsdevice.c)
7505 
 
7506 
Adds support for anti-aliased characters using 2 or 4 bits of alpha.
7507 
(gxfcache.h, gschar.c, gxccache.c)
7508 
 
7509 
</pre>
7510 
 
7511 
<hr>
7512 
 
7513 
<h2><a name="Version3.13"></a>Version 3.13(private) (10/3/94)</h2>
7514 
 
7515 
<p>
7516 
This release was created for a customer; it was not distributed to the
7517 
public.
7518 
 
7519 
<h3><a name="V3.13_Documentation"></a>Documentation</h3><pre>
7520 
Notes in make.doc that the file names in the IJG archive distributed with
7521 
Ghostscript do not include the gsA.BC/ prefix.  (make.doc)
7522 
 
7523 
Adds a cross-reference to make.doc to the Watcom makefiles.  (watc.mak,
7524 
watcwin.mak, wccommon.mak)
7525 
 
7526 
</pre><h3><a name="V3.13_Procedures"></a>Procedures</h3><pre>
7527 
 
7528 
Fixes bugs:
7529 
	- The makefile rule for gconfig.h et al had a couple of blank lines
7530 
in the middle of it.  (gs.mak)
7531 
 
7532 
</pre><h3><a name="V3.13_Utilities"></a>Utilities</h3><pre>
7533 
 
7534 
Fixes bugs:
7535 
	- wrfont.ps didn't add a lenIV entry to the Private dictionary if
7536 
it was needed.  (wrfont.ps)
7537 
 
7538 
Adds a packfile.ps utility that allows compressing multiple files into a
7539 
single file for environments with very little permanent storage.
7540 
(gs_pfile.ps, packfile.ps, wrfont.ps)
7541 
 
7542 
</pre><h3><a name="V3.13_Drivers"></a>Drivers</h3><pre>
7543 
 
7544 
Fixes bugs:
7545 
	- The {tiff,fax}{g32d,g4} devices could produce incorrect output.
7546 
See under Streams below.
7547 
	- The dfax drivers referred to the obsolete structure member
7548 
EncodedEOLAlign.  (gdevdfax.c)
7549 
 
7550 
Changes the default bit order for TIFF/F output to little-endian, which is
7551 
apparently what the majority of TIFF decoders like best.  The bit order for
7552 
the fax drivers is still big-endian.  (gdevdfax.c, gdevtfax.c)
7553 
 
7554 
</pre><h3><a name="V3.13_Platforms"></a>Platforms</h3><pre>
7555 
 
7556 
Fixes bugs:
7557 
	- The VMS build script used -a rather than -w for creating
7558 
gconfig_.h.  (vms.mak)
7559 
	- The VMS build script didn't create gconfigv.h.  (vms.mak)
7560 
	- The VMS Fontmap had incorrect entries for the Bitstream Charter
7561 
fonts.  (fontmap.vms)
7562 
	- The VMS MODULES.LIS file assumed the JPEG library files were in
7563 
directory JPEG rather than JPEG-5.  (modules.lis)
7564 
 
7565 
</pre><h3><a name="V3.13_Fonts"></a>Fonts</h3><pre>
7566 
 
7567 
Fixes bugs:
7568 
	- Using DISKFONTS resulted in an invalidaccess error.
7569 
(gs_fonts.ps)
7570 
 
7571 
</pre><h3><a name="V3.13_Interpreter"></a>Interpreter</h3><pre>
7572 
 
7573 
Fixes bugs:
7574 
	- The standard transfer function considered gray values above
7575 
roughly 0.994 equivalent to white; 0.999 is a better value.  (gs_init.ps)
7576 
	- The transfer, black generation, and undercolor removal functions
7577 
gave slightly inexact results for an input value of 0.  (zcolor.c,
7578 
zcontrol.c)
7579 
	- setpagedevice gave an /undefined error if it did not recognize a
7580 
key, rather than ignoring the key.  (zdevice.c, gs_init.ps, gs_lev2.ps,
7581 
gs_setpd.ps)
7582 
 
7583 
Changes .putdeviceparams to take an additional argument, a Boolean that
7584 
says whether or not unrecognized keys should be reported as /undefined
7585 
errors.  THIS IS A NON-BACKWARD-COMPATIBLE CHANGE; however, no user-written
7586 
code should be calling .putdeviceparams.  (zdevice.c)
7587 
 
7588 
</pre><h3><a name="V3.13_Streams"></a>Streams</h3><pre>
7589 
 
7590 
Fixes bugs:
7591 
	- The Group 3 2-D and Group 4 fax encoders could emit incorrect
7592 
output.  (scfe.c)
7593 
	- The algorithm for constructing optimal Huffman codes could
7594 
produce invalid codes in some rare cases.  (shcgen.c)
7595 
 
7596 
</pre><h3><a name="V3.13_Library"></a>Library</h3><pre>
7597 
 
7598 
Fixes bugs:
7599 
	- Rectangles closed with lineto rather than closepath weren't
7600 
recognized as rectangles.  (This only affected performance, not
7601 
functionality.)  (gxpath2.c)
7602 
	- The xfont lookup_font procedure could get called with a matrix
7603 
whose translation components had never been initialized.  (gxccman.c)
7604 
	- Some compilers don't allow \ in the formal argument list of a
7605 
preprocessor macro.  (gdevprn.h, gxdevice.h)
7606 
 
7607 
</pre>
7608 
 
7609 
<h2><a name="Version3.12"></a>Version 3.12 (9/29/94)</h2>
7610 
 
7611 
<p>
7612 
This is another bug fix release, the first Level 2 release that we believe
7613 
is reasonably reliable.
7614 
 
7615 
<h3><a name="V3.12_Documentation"></a>Documentation</h3><pre>
7616 
 
7617 
Adds some text warning about making copies of the makefile.  (make.doc)
7618 
 
7619 
</pre><h3><a name="V3.12_Procedures"></a>Procedures</h3><pre>
7620 
 
7621 
Fixes bugs:
7622 
	- There were a number of unnecessary dependencies on $(MAKEFILE) in
7623 
gs.mak, left over from before the existence of gconfigv.h.  (gs.mak)
7624 
	- JPEGSRC was defined in gs.mak rather than in jpeg.mak.  (gs.mak,
7625 
jpeg.mak)
7626 
 
7627 
Changes the version numbering scheme back to A.BC, since people seem to be
7628 
adapting to the change, and this allows using the version number directly
7629 
as a MS-DOS directory name.  (gconfig.c, gdevtfax.c, gs.c, gs_init.ps)
7630 
 
7631 
Updates the JPEG library to version 5 (official release) of the IJG code.
7632 
(jpeg/*, jpeg.mak)
7633 
 
7634 
</pre><h3><a name="V3.12_Drivers"></a>Drivers</h3><pre>
7635 
 
7636 
Fixes bugs:
7637 
	- The TIFF/F driver put out invalid PageNumber and Software
7638 
entries.  (gdevtifs.h, gdevtfax.c)
7639 
	- The TIFF/F and fax Group 3 2-D drivers used K=3 and K=5 instead
7640 
of K=2 and K=4.  (gdevtfax.c)
7641 
	- The TIFF/F and fax Group 3 2-D drivers emitted improperly aligned
7642 
output.  (See under Streams below.)
7643 
	- The MS Windows driver didn't resize the window properly in
7644 
response to changing the device parameters.  (gdevmswn.c)
7645 
 
7646 
Because of complementary bugs in various C compilers, changes all the
7647 
non-printer devices to use a different set of macros.  (gdevmem.h,
7648 
gdevpcfb.h, gdevprn.h, gdevsvga.h, gxdevice.h, gdev{3b1, bgi, herc, l256,
7649 
pe, pm, sun, vglb, wddb, wdib, wprn, x}.c, gsdevice.c, gxacpath.c,
7650 
gxclip2.c, gxcpath.c, gxpcmap.c, zupath.c)
7651 
 
7652 
Changes the X11 driver to ignore the "margins" specified by Ghostview.
7653 
This is apparently necessary for Ghostview to handle landscape display
7654 
properly.  (gdevxini.c)
7655 
 
7656 
Adds a WindowID parameter to the X11 device, to allow setting the window
7657 
for the output.  (gdevx.h, gdevx.c, gdevxini.c)
7658 
 
7659 
</pre><h3><a name="V3.12_Platforms"></a>Platforms</h3><pre>
7660 
 
7661 
Fixes bugs:
7662 
	- The definition of BEGINFILES in os2.mak occurred too late in the
7663 
file to have the desired effect.  (os2.mak)
7664 
 
7665 
</pre><h3><a name="V3.12_Interpreter"></a>Interpreter</h3><pre>
7666 
 
7667 
Fixes bugs:
7668 
	- Updating the list of allocated file objects at a restore didn't
7669 
clear the prev pointer of the new head, which could cause the garbage
7670 
collector to encounter an invalid pointer.  (Bug introduced by .forgetsave
7671 
in 3.0.3.)  (zfile.c)
7672 
 
7673 
</pre><h3><a name="V3.12_Streams"></a>Streams</h3><pre>
7674 
 
7675 
Fixes bugs:
7676 
	- The CCITTFaxEncode filter with K &gt; 0 and EncodedByteAlign = true
7677 
incorrectly aligned the 1-D/2-D bit as the last bit of a byte, rather than
7678 
the first bit.  (scfx.h, scfe.c)
7679 
	- eexec could loop indefinitely under certain conditions.
7680 
(seexec.c)
7681 
	- eexec's algorithm for recognizing text vs. binary encoding didn't
7682 
work properly in some cases that don't conform to the Adobe Type 1 Font
7683 
Format documentation.  (seexec.c)
7684 
	- Closing a stream didn't clear out the strm and state pointers,
7685 
which could cause invalid accesses by the garbage collector.  (stream.c)
7686 
 
7687 
</pre><h3><a name="V3.12_Library"></a>Library</h3><pre>
7688 
 
7689 
Fixes bugs:
7690 
	- fill_loop could loop indefinitely under certain conditions.
7691 
(Introduced by a bug fix in 3.1.)  (gxfill.c)
7692 
	- fill/eofill sometimes failed to paint parts of a region.
7693 
(Introduced by a bug fix in 3.1.1.)  (gxfill.c)
7694 
	- Non-convex clipping paths sometimes omitted thin horizontal
7695 
slivers of the region.  (Probably introduced by the "thin graphics" fix in
7696 
3.1.)  (gxacpath.c)
7697 
 
7698 
</pre>
7699 
 
7700 
<h2><a name="Version3.1.1"></a>Version 3.1.1 (9/25/94)</h2>
7701 
 
7702 
<p>
7703 
This is primarily a bug fix release.  It was originally intended for some
7704 
commercial licensees, but beta testers found too many problems with it.
7705 
 
7706 
<h3><a name="V3.1.1_Documentation"></a>Documentation</h3><pre>
7707 
 
7708 
Fixes bugs:
7709 
	- NEWS didn't indicate that there was a non-backward-compatible
7710 
change in the gx_device structure -- specifically, that l_margin,
7711 
b_margin, r_margin, and t_margin were replaced by macros named
7712 
dev_l_margin(dev), etc.  (news)
7713 
 
7714 
Describes the two-phase commit requirement for device put_params
7715 
procedures.  (drivers.doc, gsparam.h)
7716 
 
7717 
</pre><h3><a name="V3.1.1_Procedures"></a>Procedures</h3><pre>
7718 
 
7719 
Fixes bugs:
7720 
	- The new S macro in genarch.c didn't work on compilers that do
7721 
macro substitution within string constants (which is forbidden by the ANSI
7722 
standard).  (genarch.c)
7723 
 
7724 
</pre><h3><a name="V3.1.1_Drivers"></a>Drivers</h3><pre>
7725 
 
7726 
Fixes bugs:
7727 
	- Driver put_params implementations didn't observe a "two-phase
7728 
commit" discipline; this could lead to the current device in the graphics
7729 
state being closed, and other inconsistencies.  (gsparam.h, gxdevice.h,
7730 
iparam.h, gdevbit.c, gdevcdj.c, gdevmswn.c, gdevpcfb.c, gdevpm.c,
7731 
gdevprn.c, gdevx.c, gsdevice.c, gsdparam.c, zdevice.c, ziodev2.c, zmisc2.c)
7732 
THIS IS A NON-BACKWARD-COMPATIBLE CHANGE; however, it only affects
7733 
put_params implementations, of which there are few.
7734 
 
7735 
NOTE THE NON-BACKWARD-COMPATIBLE CHANGE IN THE gx_device STRUCTURE UNDER
7736 
'Documentation' ABOVE.  (gdevescp.c, gdevsj48.c, gdevsppr.c, gdevxini.c)
7737 
 
7738 
</pre><h3><a name="V3.1.1_Platforms"></a>Platforms</h3><pre>
7739 
 
7740 
Ensures that the Unix makefiles all include all the variants of TIFF/F and
7741 
fax drivers.  (ansihead.mak, cc-head.mak, gcc-head.mak)
7742 
 
7743 
</pre><h3><a name="V3.1.1_Interpreter"></a>Interpreter</h3><pre>
7744 
 
7745 
Fixes bugs:
7746 
	- Most of the contents of statusdict were missing when
7747 
running a Level 2 system in Level 1 mode.  (zmisc2.c)
7748 
 
7749 
</pre>
7750 
 
7751 
<h2><a name="Version3.1"></a>Version 3.1 (9/20/94)</h2>
7752 
 
7753 
<p>
7754 
This release finally includes a usable subset implementation of
7755 
setpagedevice, including all the machinery needed to address the
7756 
long-standing "margins" problems.
7757 
 
7758 
<h3><a name="V3.1_Documentation"></a>Documentation</h3><pre>
7759 
 
7760 
Fixes bugs:
7761 
	- t_oparray objects weren't identified as behaving differently
7762 
depending on whether they were marked executable.  (iref.h)
7763 
	- drivers.doc had gx_color_value instead of gx_color_index in
7764 
the description of color mapping.  (drivers.doc)
7765 
 
7766 
Updates drivers.doc to reflect the change from static_procs to
7767 
std_procs in the gx_device structure.  (drivers.doc)
7768 
 
7769 
</pre><h3><a name="V3.1_Procedures"></a>Procedures</h3><pre>
7770 
 
7771 
Fixes bugs:
7772 
	- The commands for building the JPEG library used rm instead
7773 
of rm -f.  (jpeg.mak)
7774 
 
7775 
</pre><h3><a name="V3.1_Drivers"></a>Drivers</h3><pre>
7776 
 
7777 
Fixes bugs:
7778 
	- The X Windows driver hadn't been updated to reflect some
7779 
name changes in members of the gx_color_info structure.  (gdevx.h,
7780 
gdevx.c, gdevxini.c)
7781 
 
7782 
Changes all non-printer drivers so that they use the new std_device_body
7783 
macros.  (gdev*.c)
7784 
 
7785 
Adds a print_page_copies procedure for printer drivers, allowing the
7786 
driver to receive num_copies.  (gdevprn.h, gdevprn.c)
7787 
 
7788 
</pre><h3><a name="V3.1_Interpreter"></a>Interpreter</h3><pre>
7789 
 
7790 
Fixes bugs:
7791 
	- ref_memory_enum/reloc_ptrs were declared inconsistently.
7792 
(ialloc.c)
7793 
	- If the operand of restore was invalid, the restore did
7794 
nothing, instead of giving a typecheck.  (zvmem.c)
7795 
	- In Level 2, the margins and setmargins compatibility
7796 
operators were defined incorrectly in terms of current/setpagedevice.
7797 
(gs_lev2.ps)
7798 
 
7799 
Enables .makeoperator to make local operators as well as global ones.
7800 
(opdef.h, iinit.c, zmisc.c, zpacked.c)
7801 
 
7802 
Finishes implementing the TransferFunction entry in halftone
7803 
dictionaries.  (zht1.c, zht2.c)
7804 
 
7805 
Adds .set/currentfilladjust operators for access to the fill
7806 
adjustment parameter in the graphics state.  (zgstate.h)
7807 
 
7808 
Removes the deviceinitialmatrix operator.  (zdevice.c)
7809 
 
7810 
Changes defaultmatrix from a procedure to an operator.  (zmatrix.c)
7811 
 
7812 
Sets the fill adjustment to 0.5 for high-resolution devices, effectively
7813 
implementing Adobe's any-part-of-pixel filling rule.  (gs_init.ps)
7814 
 
7815 
Implements a small but useful subset of setpagedevice.  (gs_lev2.ps)
7816 
 
7817 
</pre><h3><a name="V3.1_Streams"></a>Streams</h3><pre>
7818 
 
7819 
Fixes bugs:
7820 
	- The eexec decoder incorrectly concluded that its data was
7821 
in hex form if the first data character was whitespace.  (seexec.c)
7822 
 
7823 
</pre><h3><a name="V3.1_Library"></a>Library</h3><pre>
7824 
 
7825 
Fixes bugs:
7826 
	- Thin graphics (e.g., lines or rectangles) with small angles
7827 
relative to the X axis rendered with many points missing.  (gxdraw.c,
7828 
gxfill.c)
7829 
	- The character cache rejected oversampled characters if the
7830 
scaled-up size was too large, even if the scaled-down size wasn't.
7831 
(gxchar.h, gschar.c, gxccache.c, gxccman.c)
7832 
	- A call on sqrt with an integer argument didn't promote it
7833 
explicitly to double, which is required for non-ANSI compilers.
7834 
(gshtscr.c)
7835 
 
7836 
Finishes implementing the TransferFunction entry in halftone
7837 
dictionaries.  (gsht1.c)
7838 
 
7839 
Modifies the character oversampler so it can produce gray scale
7840 
output instead of a 1-bit mask.  We don't actually make use of this
7841 
ability yet.  (gxccman.c)
7842 
 
7843 
Adds gs_set/currentfilladjust for access to the fill adjustment
7844 
parameter in the graphics state.  (gsstate.h, gsstate.c)
7845 
 
7846 
Changes the names of the last few routines beginning with gz_ to
7847 
begin with gx_ instead.  (gzdraw.h =&gt; gxdraw.h, gsimage*.c, gxdraw.c,
7848 
gxfill.c, gxstroke.c)
7849 
 
7850 
Properly implements the PageSize, Margins, .HWMargins, and ImagingBBox
7851 
device parameters for all devices.  (gscoord.c, gsdparam.c, gspath2.c)
7852 
Implements the NumCopies device parameter for printer devices.
7853 
(gdevprn.c)
7854 
 
7855 
Implements std_device_body macros to help insulate statically initialized
7856 
non-printer devices from future changes in the gx_device structure.
7857 
(gxdevice.h, ... many .c files ...)
7858 
 
7859 
</pre>
7860 
 
7861 
<hr>
7862 
 
7863 
<h2><a name="Version3.0.3"></a>Version 3.0.3 (9/16/94)</h2>
7864 
 
7865 
<p>
7866 
This is primarily a bug fix release; it also implements most of the
7867 
remaining Level 2 loose ends (except for setpagedevice).
7868 
 
7869 
<h3><a name="V3.0.3_Documentation"></a>Documentation</h3><pre>
7870 
 
7871 
Changes code that refers to "Ghostscript" to use the correct product
7872 
name from gs_product.  (gs.mak, gdevpbm.c, gdevsun.c, gswppm.c)
7873 
 
7874 
Documents the new .forgetsave operator.  (language.doc)
7875 
 
7876 
Clarifies the distinction between commercial licensing and single-copy
7877 
end-user sales.  (readme)
7878 
 
7879 
</pre><h3><a name="V3.0.3_Procedures"></a>Procedures</h3><pre>
7880 
 
7881 
Fixes bugs:
7882 
	- The compilation rule for gdevadmp.c was missing from the
7883 
makefile.  (devs.mak)
7884 
 
7885 
Changes the version numbering scheme back to A.B.C, since too many
7886 
people got confused by the change to A.BC.  (gconfig.c, gs.c,
7887 
gs_init.ps)
7888 
 
7889 
Adds a -dNOGC switch to prevent the garbage collector from being
7890 
enabled.  (gs_init.ps)
7891 
 
7892 
</pre><h3><a name="V3.0.3_Utilities"></a>Utilities</h3><pre>
7893 
 
7894 
Removes the ps2image utility, since the new psmono driver replaces it.
7895 
 
7896 
</pre><h3><a name="V3.0.3_Drivers"></a>Drivers</h3><pre>
7897 
 
7898 
Fixes bugs:
7899 
	- The TIFF drivers incorrectly assumed that short and ulong
7900 
were the same size as TIFF_short and TIFF_ulong, causing problems on
7901 
64-bit systems.  (gdevtfax.c)
7902 
	- The EGA/VGA driver didn't do gray halftones properly if it
7903 
was configured as a monochrome or 8-color device.  (gdevpcfb.h)
7904 
	- The comment in gdevevga.c incorrectly identified the file
7905 
as gdevpcfb.c.  (gdevevga.c)
7906 
 
7907 
Changes the PC display drivers to save and restore more of the BIOS
7908 
state.  (gdevpcfb.h, gdevevga.c, gdevpcfb.c, gdevsco.c)
7909 
 
7910 
Adds a new psmono driver that does the same thing as ps2image, faster
7911 
and more conveniently.  (gdevpsim.c)
7912 
 
7913 
Replaces the X11 driver with the one from 3.01, since the color
7914 
handling rewrite in 3.02 introduced serious bugs.  (gdevx.h, gdevx.c,
7915 
gdevxini.c)
7916 
 
7917 
</pre><h3><a name="V3.0.3_Platforms"></a>Platforms</h3><pre>
7918 
 
7919 
Changes the definition of gx_no_color_index to work around one of the
7920 
bugs in the SGI Irix compiler.  (gxdcolor.h)
7921 
 
7922 
Rewrites the installation commands in unix-end.mak so they don't have
7923 
very long lines.  (unix-end.mak)
7924 
 
7925 
</pre><h3><a name="V3.0.3_Fonts"></a>Fonts</h3><pre>
7926 
 
7927 
Fixes bugs:
7928 
	- Fonts that used 2- or 4-element arrays in the Metrics dictionary
7929 
interpreted the width and side bearing interchanged with each other.
7930 
(gs_type1.ps)
7931 
	- Setting FONTPATH on the command line didn't work.  (gs_fonts.ps)
7932 
 
7933 
</pre><h3><a name="V3.0.3_Streams"></a>Streams</h3><pre>
7934 
 
7935 
Fixes bugs:
7936 
	- The stream position wasn't updated properly if sgets
7937 
crossed a buffer boundary.  (stream.c)
7938 
 
7939 
Extends the BoundedHuffman filters so they can encode and decode runs of
7940 
zeros specially, and so they mark and detect EOD.  (sbhc.h, shc.h, sbhc.c,
7941 
zfilter2.c)
7942 
 
7943 
Provides an alternate implementation of file streams which doesn't use
7944 
stdio buffering and which works around the System V "interrupted system
7945 
call" problem.  (stream.c, sfile.c, sfileno.c)
7946 
 
7947 
Increases the maximum LZW output code from 3000 to 4095.  (slzwe.c)
7948 
 
7949 
</pre><h3><a name="V3.0.3_Interpreter"></a>Interpreter</h3><pre>
7950 
 
7951 
Fixes bugs:
7952 
	- Opening a filter on a file of the wrong access type (read
7953 
vs. write) didn't cause an error.  (stream.h, sbasic.c, zfile.c, zfileio.c)
7954 
	- save performed an extra, unnecessary gsave.  (zvmem.c)
7955 
	- sethalftone always gave a /undefined error.  (zht2.c)
7956 
	- eexec decryption read too much data from the input -- in
7957 
Level 2, it isn't allowed to read 512 characters ahead.  (sfilter.h,
7958 
strimpl.h, seexec.c, sstring.c, zfileio.c, zmisc1.c)
7959 
	- The scanner was too aggressive about allocating additional
7960 
space for strings on small machines.  (iscan.c)
7961 
	- The AccurateScreens flag in Type 1 and Type 2 halftone
7962 
dictionaries was being ignored.  (zht2.c)
7963 
	- The Level 2 definition of margins in statusdict didn't
7964 
allow for Margins being undefined in the current page device.
7965 
(gs_lev2.ps)
7966 
	- The Interpolate flag was being ignored in image
7967 
dictionaries.  [implemented in library]
7968 
	- The TransferFunction option was being ignored in halftone
7969 
dictionaries.  (zht2.c)
7970 
	- Type 5 halftones usually didn't work, because they called
7971 
the wrong (or an invalid) spot function.  (zht2.c)
7972 
 
7973 
Implements a .forgetsave operator that effectively causes a given save (and
7974 
all more recent saves) to disappear.  (isave.h, stream.h, isave.c, zfile.c,
7975 
zvmem.c)
7976 
 
7977 
</pre><h3><a name="V3.0.3_Library"></a>Library</h3><pre>
7978 
 
7979 
Fixes bugs:
7980 
	- In the 1-operand form of the image operator, a Decode value of [1
7981 
0] with 8-bit sample values and a single data source was treated the same
7982 
as [0 1].  (gsimage1.c)
7983 
	- Some Monotype fonts put a callsubr between an OtherSubr call and
7984 
the following 'pop' opcodes (which the Adobe documentation forbids); The
7985 
Type 1 font interpreter gave an invalidfont error rather than allowing
7986 
this.  (gxtype1.h, gstype1.c)
7987 
	- Patterns didn't implement XStep and YStep properly.
7988 
(gxpcolor.h, gspcolor.c, gxclip2.c)
7989 
	- Clipping regions were sometimes 1 pixel too small at the edges;
7990 
this could cause vertical and horizontal lines produced by certain Windows
7991 
drivers to disappear.  (gzpath.h, gxacpath.c, gxcpath.c, gxfill.c)
7992 
	- Oversampling cached rotated characters produced very bad
7993 
results (many dropouts).  (gschar.c)
7994 
	- Rendering a DeviceGray color on a DeviceCMYK device applied
7995 
the transfer function to all 4 components, not just to the K
7996 
component.  (gxcmap.c)
7997 
	- A screen specified with setcolorscreen didn't take effect
7998 
properly on CMYK devices.  (gsht.c)
7999 
 
8000 
Implements the Interpolate option for images.  Currently this is only
8001 
implemented for portrait-orientation images (no rotation, skewing, or
8002 
X-reflection).  (gscspace.h, gximage.h, gscie.c, gscolor.c, gscolor1.c,
8003 
gscolor2.c, gspcolor.c, gxcmap.c, gsimage.c, gsimage2.c, gsimage3.c)
8004 
 
8005 
Implements AccurateScreens, but only in the form of a larger limit on
8006 
the size of a halftone super-cell.  (gxht.h, gsht.c, gsht1.c)
8007 
 
8008 
Starts to implement the TransferFunction option for halftones.
8009 
(gzht.h, gzstate.h, gsht.c, ...too many others to list...)
8010 
 
8011 
</pre>
8012 
 
8013 
<h2><a name="Version3.02"></a>Version 3.02 (8/30/94)</h2>
8014 
 
8015 
<p>
8016 
This is another bug fix release.  It was distributed only to a few people,
8017 
since the new X Windows color mapping code is not reliable yet.
8018 
 
8019 
<h3><a name="V3.02_Documentation"></a>Documentation</h3><pre>
8020 
 
8021 
Fixes bugs:
8022 
	- make.doc, but not unixtail.mak, called for setting PLATFORM=unix_
8023 
on SVR4 platforms.  (unixtail.mak)
8024 
	- drivers.doc contained some wording that suggested that
8025 
Ghostscript always used RGB colors internally.  (drivers.doc)
8026 
	- The definition of gx_device in drivers.doc had gotten out of sync
8027 
with gxdevice.h.  (drivers.doc)
8028 
	- README claimed that Ghostscript is not compatible with the
8029 
VAX/VMS DEC C compiler, which is no longer true.  (readme)
8030 
 
8031 
Adds a new section on printer drivers to drivers.doc.  (drivers.doc)
8032 
 
8033 
Adds a large number of new display boards to the 800x600 SVGA section of
8034 
use.doc.  (use.doc)
8035 
 
8036 
Adds a bug report form to the README file.  (readme)
8037 
 
8038 
Notes that OSF/1 AXP systems require changing the definition of INSTALL
8039 
from install to installbsd.  (make.doc)
8040 
 
8041 
</pre><h3><a name="V3.02_Procedures"></a>Procedures</h3><pre>
8042 
 
8043 
Removes -Wno-uninitialized from the gcc flags, and fixes all the places (in
8044 
Aladdin's code only) that need to be fixed to pacify gcc after doing this.
8045 
(gcc-head.mak, gdevgif.c, gdevmem2.c, gdevpcl.c, gs.c, gsht1.c, gsimpath.c,
8046 
gsutil.c, gxclread.c, gxpcopy.c, gxstroke.c, idict.c, iscannum.c, stream.c,
8047 
zdevice2.c) (NOT FINISHED YET)
8048 
 
8049 
Adds a FAKEFONTS switch that makes fake entries in FontDirectory for
8050 
unloaded fonts, for the benefit of programs that think they can find all
8051 
the available fonts by scanning FontDirectory.  (gs_fonts.ps, gs_init.ps)
8052 
 
8053 
</pre><h3><a name="V3.02_Utilities"></a>Utilities</h3><pre>
8054 
 
8055 
Fixes bugs:
8056 
	- ps2epsi didn't work, because setdevice now erases the page.
8057 
(ps2epsi.ps)
8058 
	- ps2epsi didn't work, because -dNODISPLAY installs a null device
8059 
with 0 width and height.  The fix -- to remove the -dNODISPLAY -- is not
8060 
satisfactory, because it opens an unnecessary window.  (ps2epsi)
8061 
 
8062 
</pre><h3><a name="V3.02_Drivers"></a>Drivers</h3><pre>
8063 
 
8064 
Fixes bugs:
8065 
	- gdev_fax_open was incorrectly declared static in gdevtfax.c,
8066 
causing the extern reference in the dfax drivers not to be resolved.
8067 
(gdevtfax.c)
8068 
	- devs.mak included a duplicate definition of gdevmswn_h.
8069 
(devs.mak)
8070 
	- The fax drivers didn't link properly in Level 1 systems, because
8071 
shc.c was omitted from their dependency list.  (gs.mak, devs.mak)
8072 
	- The TIFF/F drivers didn't set RowsPerStrip properly.
8073 
(gdevtfax.c)
8074 
	- The TIFF/F drivers didn't byte-align the EOL properly.  (scfx.h,
8075 
gdevdfax.c, gdevtfax.c, scfe.c, zfilter2.c)
8076 
	- The rule for compiling gdevpccm.c incorrectly specified
8077 
dependency on gs.h rather than gx.h.  (devs.mak)
8078 
	- The rule for compiling gdevtfax.c didn't include time_.h as a
8079 
dependency.  (devs.mak)
8080 
	- The mode 2 compression routine for the DeskJet/LaserJet printers
8081 
was broken.  (gdevpcl.c)
8082 
 
8083 
Removes the -O0 from the compilation rule for gdevsco.c, since it was
8084 
misplaced to begin with.  (devs.mak)
8085 
 
8086 
Adds a maxDynamicColors X resource to control dynamic allocation in the
8087 
color map.  Replaces the X color lookup algorithms with completely new
8088 
ones, for a substantial performance gain.  (gdevx.h, gdevx.c, gdevxini.c)
8089 
 
8090 
Adds PageNumber, Software, and DateTime entries to the TIFF/F drivers.
8091 
(gdevtifs.h, gdevtfax.c)
8092 
 
8093 
Changes the margins for the LaserJet 4 to 0.  (gdevdjet.c)
8094 
 
8095 
Adds a user-contributed LaserJet 4 driver that does Floyd-Steinberg
8096 
dithering.  (gdevcdj.c)
8097 
 
8098 
</pre><h3><a name="V3.02_Platforms"></a>Platforms</h3><pre>
8099 
 
8100 
Fixes bugs:
8101 
	- The exit codes for Ghostscript should be different on VMS.
8102 
(iastate.h, gs.c, gsmain.c, igc.c, igcref.c)
8103 
	- The VMS DEC C compiler declares malloc and free in stdlib.h, and
8104 
delete and unlink in stdlib.h.  (malloc_.h, stdio_.h)
8105 
	- st_prn_device wasn't defined, which upset the VMS linker even
8106 
though there were no references.  (gdevprn.h)
8107 
	- stdpre.h didn't bring in the right headers when running gcc on
8108 
SCO Unix, causing compilation warnings/errors.  (stdpre.h)
8109 
	- The definition of rename in gp_sysv didn't include const for the
8110 
arguments.  (gp_sysv.c)
8111 
	- The definition of gettimeofday in gp_sysv didn't return any
8112 
value.  (gp_sysv.c)
8113 
	- time_.h didn't work on MS-DOS systems.  (time_.h)
8114 
	- math_.h didn't include &lt;math.h&gt; when compiling with gcc on VMS
8115 
systems.  (math_.h)
8116 
	- DesqView/X doesn't have a 'cat' command, which caused problems in
8117 
the linking step.  (dvx-tail.mak)
8118 
 
8119 
Changes the definitions of popen in gdevpipe.c and gp_unix.c so they don't
8120 
specify the argument list.  This is an attempt to get around the fact that
8121 
there is no easy way to detect whether the available header files declare
8122 
popen correctly (with const arguments), incorrectly (with non-const
8123 
arguments), or not at all.  (gdevpipe.c, gp_unix.c)
8124 
 
8125 
Replaces VMS.MAK, VMS-CC.MAK, and VMS-AXP.MAK with new versions provided by
8126 
a user.  (vms.mak, vms-cc.mak, vms-axp.mak)
8127 
 
8128 
Changes the 16-bit Borland makefiles so their standard configuration is
8129 
Level 1 plus color.dev (CMYK color and colorimage).  (bc.mak, bcwin.mak)
8130 
 
8131 
</pre><h3><a name="V3.02_Fonts"></a>Fonts</h3><pre>
8132 
 
8133 
Fixes bugs:
8134 
	- cfonts.mak still referred to some .gsf files that have been
8135 
replaced by .pfa files.  (cfonts.mak)
8136 
	- Compiled fonts got entered into FontDirectory, but didn't get
8137 
registered as resources.  (gs_ccfnt.ps)
8138 
	- The Cyrillic, Kana, Hershey .gsf, and URW fonts didn't include a
8139 
necessary systemdict begin/end, which caused them to fail in badly designed
8140 
environments.  (fonts/f*.gsf, fonts/h*.gsf, fonts/?0*.gsf)
8141 
 
8142 
Changes the default target directory in cfonts.mak from fonts/c to .;
8143 
changes the names of the Zapf Chancery compiled font procedures from c* to
8144 
zc*.  (cfonts.mak)
8145 
 
8146 
Adds more fonts from the Adobe Type Manager package for MS Windows to
8147 
Fontmap.ATM.  (fontmap.atm)
8148 
 
8149 
Adds the entire set of 35 standard fonts to the ccfonts feature in gs.mak;
8150 
removes all the compilation rules for compiled fonts, since these rules are
8151 
in cfonts.mak already.  (gs.mak)
8152 
 
8153 
</pre><h3><a name="V3.02_Interpreter"></a>Interpreter</h3><pre>
8154 
 
8155 
Fixes bugs:
8156 
	- kshow executed a null, rather than the correct procedure, between
8157 
the characters of the string, and got a typecheck error at the end.
8158 
(zchar.c)
8159 
	- MultiMaster fonts computed their side bearing and width
8160 
incorrectly, producing incorrect output.  (zchar1.c)
8161 
	- There was no structure definition for gs_type1_state, so a GC
8162 
during the execution of an OtherSubrs procedure could scramble pointers in
8163 
the saved state.  (zchar1.c, zfont1.c; also affects library, see below)
8164 
	- kshow didn't work properly if the kerning procedure changed the
8165 
depth of the operand or dictionary stack.  (zchar.c)
8166 
	- If the element count for roll was too large by only 1 or 2, the
8167 
result was a crash rather than a rangecheck.  (zstack.c)
8168 
	- restore didn't undo currentgstate.  (igstate.h, store.h,
8169 
gsstate.c, zdevice2.c, zdps1.c, ztype.c)
8170 
	- The scanner didn't set the local bit properly in a suspended
8171 
state.  (iscan.c)
8172 
	- copypage disregarded #copies.  (gs_init.ps)
8173 
	- An incorrectly declared pointer led to addressing faults on
8174 
16-bit systems.  (zchar1.c)
8175 
	- The cache for Separation colors was allocated with one element
8176 
too few.  (zcsindex.c)
8177 
 
8178 
Changes `executive' so that if an error other than EOF occurs in the
8179 
reading of the statement, the interpreter prints the error message, but
8180 
control remains in the executive loop.  (This isn't a very good fix; a
8181 
better one will require refactoring executive / execute / run.)
8182 
(gs_init.ps)
8183 
 
8184 
Changes dictionary undo saving to use the new ref_must_save macro [internal
8185 
change only].  (idict.c)
8186 
 
8187 
Moves configuration definitions from iinit.c to gconfig.c.  (gcdefs.h,
8188 
interp.h, gconfig.c, gs.c, iinit.c, zmisc2.c, gs.mak)
8189 
 
8190 
Moves =string from systemdict to userdict for Adobe compatibility.
8191 
(gs_init.ps)
8192 
 
8193 
Starts to implement the Interpolate flag in image dictionaries.  See under
8194 
Library below for restrictions.  (zpaint.c, zimage2.c)
8195 
 
8196 
</pre><h3><a name="V3.02_Streams"></a>Streams</h3><pre>
8197 
 
8198 
Fixes bugs:
8199 
	- stream_compact attempted to compact a read-only string being used
8200 
as the data source of a filter.  (sbasic.c, stream.c)
8201 
 
8202 
Adds an EncodedEOLAlign flag to the CCITTFaxEncode stream, to allow direct
8203 
generation of TIFF/F output.  (scfx.h, scfe.c, zfilter2.c)
8204 
 
8205 
</pre><h3><a name="V3.02_Library"></a>Library</h3><pre>
8206 
 
8207 
Fixes bugs:
8208 
	- There was no structure definition for gs_type1_state, so a GC
8209 
during the execution of an OtherSubrs procedure could scramble pointers in
8210 
the saved state.  (gxfont1.h, gxtype1.h, gstype1.c, gxhint2.c)
8211 
	- A couple of calls had to discard const, but didn't include the
8212 
necessary cast.  (gxpcmap.c)
8213 
	- makeimagedevice refused to accept an empty image.  (gsdevice.c)
8214 
	- The extra parentheses around arguments in memory_.h caused some
8215 
compilers to fail.  (memory_.h)
8216 
	- Floating point overflows during coordinate conversion terminated
8217 
Ghostscript.  (gxfarith.h, gxfixed.h, gsmatrix.c, gsmisc.c)
8218 
	- Accents still weren't getting placed properly on characters
8219 
created with seac.  (gstype1.c, gxhint2.c)
8220 
	- The SGI C compiler couldn't handle the (perfectly legal)
8221 
definitions of dev_init_[open_]misc.  (gxdevice.h)
8222 
	- string_.h caused some problems with gcc on some versions of
8223 
Solaris.  (string_.h)
8224 
	- The halftone levels for color screens were computed incorrectly.
8225 
(gzht.h, gxdither.c)
8226 
	- Color screens sometimes had vertical stripes of solid color
8227 
interspersed.  (gxcht.c)
8228 
	- Colors could get mapped incorrectly if a compiler aggressively
8229 
(and incorrectly) reordered the computation of procedure arguments
8230 
involving the unit_frac macro.  (gxcmap.c)
8231 
	- setcachedevice[2] insisted that the corners of the bounding box
8232 
be given in the correct order, i.e., llx &lt; urx and lly &lt; ury.  (gschar.c)
8233 
	- The image operator gave a limitcheck on unrotated 1-bit-per-pixel
8234 
images whose width in device coordinates exceeded 65529.  (gsimage.c)
8235 
	- The garbage collector didn't trace the input data of an
8236 
in-progress image operator correctly.  (gsimage.c)
8237 
 
8238 
Changes the max_rgb and dither_rgb members of gx_device_color_info to
8239 
max_color and dither_colors, since Ghostscript now uses these for CMYK
8240 
devices as well.  Also changes dither_gray to dither_grays.  (gdevmem.h,
8241 
gdevprn.h, gxdevice.h, gdevbit.c, gdevcdj.c, gdevprn.c, gdevxini.c,
8242 
gsdparam.c, gxcht.c, gxcmap.c)
8243 
 
8244 
Starts to implement the Interpolate option for images.  Currently this is
8245 
only implemented for image, not imagemask, and only for rotations that are
8246 
multiples of 90 degrees (possibly with reflection).  (gsimage.h,
8247 
gsiscale.h, gximage.h, gsimage.c, gsimage1.c, gsiscale.c)
8248 
 
8249 
Starts to implement XStep and YStep in pattern dictionaries.  (gxdcolor.h,
8250 
gxpcolor.h, gspcolor.c, gxpcmap.c)
8251 
 
8252 
</pre>
8253 
 
8254 
<h2><a name="Version3.01"></a>Version 3.01 (8/14/94)</h2>
8255 
 
8256 
<p>
8257 
This is a patch release to fix early problems in release 3.0, and to clean
8258 
up a few known loose ends.
8259 
 
8260 
<h3><a name="V3.01_Documentation"></a>Documentation</h3><pre>
8261 
 
8262 
Fixes bugs:
8263 
	- language.doc still documented the devicename procedure, which has
8264 
been withdrawn.  (language.doc)
8265 
	- drivers.doc didn't specify under what circumstances each
8266 
procedure could be called.  (drivers.doc)
8267 
	- current.doc said that setcachedevice and makeimagedevice wouldn't
8268 
accept packed arrays, but neither of these operators takes any array
8269 
arguments.  (current.doc)
8270 
	- current.doc said that definefont didn't interact properly with
8271 
the resource machinery, which apparently is no longer true.  (current.doc)
8272 
	- make.doc incorrectly gave the name of the DVX makefile as
8273 
dvx-djg.mak rather than dvx-gcc.mak.  (make.doc)
8274 
	- In one place, devices.doc incorrectly used -sBitsPerPixel= rather
8275 
than -dBitsPerPixel=.  (devices.doc)
8276 
 
8277 
Notes that a kernel bug in SCO Unix makes Ghostscript not work correctly in
8278 
some circumstances.  (use.doc)
8279 
 
8280 
</pre><h3><a name="V3.01_Procedures"></a>Procedures</h3><pre>
8281 
 
8282 
Fixes bugs:
8283 
	- devs.mak incorrectly referred to gdevjetp.c instead of
8284 
gdev3852.c.  (devs.mak)
8285 
	- The obsolete file gsprops.c was accidentally included in the
8286 
fileset.
8287 
 
8288 
Changes the version numbering scheme from A.BCC to A.B[C].  E.g., this
8289 
release will be 3.01, not 3.001.  (gs_init.ps, gs.c, iinit.c)
8290 
 
8291 
Adds the LaserJet 4 driver to all makefiles that already include the
8292 
LaserJet 3 driver.  (*.mak)
8293 
 
8294 
Adds the BJ-200 driver to all makefiles that already included the BJ-10e
8295 
driver.  (*.mak)
8296 
 
8297 
Splits the Unix 'install' target into install-exec and install-data.  Moves
8298 
the executable scripts from gsdatadir to a new directory scriptdir, which
8299 
defaults to bindir.  (ansihead.mak, cc-head.mak, gcc-head.mak,
8300 
unix-end.mak)
8301 
 
8302 
</pre><h3><a name="V3.01_Utilities"></a>Utilities</h3><pre>
8303 
 
8304 
Fixes bugs:
8305 
	- genconf had fixed buffer sizes built into it, which it could
8306 
overrun its working storage without checking.  (genconf.c)
8307 
 
8308 
Removes RCS or SCCS headers from two utility files.  (pj-gs.sh,
8309 
printafm.ps)
8310 
 
8311 
</pre><h3><a name="V3.01_Drivers"></a>Drivers</h3><pre>
8312 
 
8313 
Fixes bugs:
8314 
	- The new dfaxhigh and dfaxlow drivers didn't set
8315 
state.EncodedByteAlign to false.  (gdevdfax.c)
8316 
	- The sunview driver assumed that the device would be open before
8317 
map_rgb_color was called.  (gdevsun.c)
8318 
	- The CP50 driver incremented page_count itself, rather than
8319 
letting the core library do it.  (gdevcp50.c)
8320 
	- The GIF driver(s) could loop indefinitely under certain
8321 
circumstances.  (gdevgif.c)
8322 
	- The Group 4 fax drivers incorrectly included end-of-line codes in
8323 
the output.  (gdevtfax.c, gdevdfax.c)
8324 
	- The Group 4 fax drivers could put out an EOB in the middle of the
8325 
data.  (scfe.c)
8326 
	- The DesignJet 650C driver didn't use the correct compression
8327 
mode.  (gdevcdj.c)
8328 
	- The Hercules and EGA/VGA/SVGA drivers computed the page height
8329 
incorrectly according to the A4 switch.  (gdevherc.c, gdevpcfb.h)
8330 
 
8331 
Changes the page_count and showpage_count members of the device structure
8332 
from int to long.  (gxdevice.h, gdevprn.c, gsdparam.c)
8333 
 
8334 
Changes the faxg3, faxg32d, and faxg4 drivers so that, like the TIFF and
8335 
dfax drivers, they adjust the page size to one of the three CCITT standard
8336 
sizes if this is reasonable.  (gdevtfax.c)
8337 
 
8338 
Splits the bit driver into bit, bitrgb, and bitcmyk.  Adds bitrgb and
8339 
bitcmyk to all makefiles that included bit.  (*.mak, devs.mak, gdevbit.c)
8340 
 
8341 
Replaces the atiw16, tseng16, and tvga16 SuperVGA drivers with a single
8342 
svga16 driver that allows specifying the display mode number.  (devs.mak,
8343 
gdevpcfb.c)
8344 
 
8345 
</pre><h3><a name="V3.01_Platforms"></a>Platforms</h3><pre>
8346 
 
8347 
Fixes bugs:
8348 
	- The MS Windows and OS/2 drivers allocated their terminal input
8349 
buffers in a way that could cause the GC to crash.  (gp_mswin.c, gp_os2.c)
8350 
	- The handling of gettimeofday on SVR4 platforms was incorrect.
8351 
(time_.h, gp_sysv.c, gp_unix.c)
8352 
	- On some platforms, function prototypes were not enabled even if
8353 
__STDC__ was defined.  (stdpre.h)
8354 
	- The VMS build script referred to an obsolete feature lev2only.
8355 
(vms.mak)
8356 
 
8357 
Changes the DVX platform so that stdprn is buffered.  This should improve
8358 
printing performance dramatically.  (gp_dvx.c)
8359 
 
8360 
</pre><h3><a name="V3.01_Fonts"></a>Fonts</h3><pre>
8361 
 
8362 
Fixes bugs:
8363 
	- Setting DISKFONTS resulted in a reference to FontFileDirectory
8364 
before it was defined.  (gs_type1.ps, gs_fonts.ps)
8365 
	- /Font findresource gave an error rather than doing font
8366 
substitution.  (gs_res.ps)
8367 
	- FontDirectory wasn't rebound to GlobalFontDirectory when global
8368 
VM was current.  (gs_res.ps, zdict.c)
8369 
	- Type 1 fonts weren't loaded into global VM.  (gs_fonts.ps)
8370 
	- In the standard Fontmap, the Utopia fonts had extension .gsf
8371 
rather than .pfa.  (fontmap.gs)
8372 
	- Fonts whose FontBBox was [0 0 0 0] were not displayed, or were
8373 
displayed as tiny dots.  (gs_type1.ps)
8374 
 
8375 
</pre><h3><a name="V3.01_Interpreter"></a>Interpreter</h3><pre>
8376 
 
8377 
Fixes bugs:
8378 
	- dict_put could read from the variable pvslot before it was used.
8379 
(This was harmless, since the value was never actually used; it just upset
8380 
Purify.)  (idict.c)
8381 
	- Binary object sequences could cause addressing faults.
8382 
(iscanbin.c)
8383 
	- The attributes on names were set incorrectly in binary object
8384 
sequences.  (iscanbin.c)
8385 
	- gs.c duplicated (in some cases incorrectly) some definitions in
8386 
interp.h.  (gs.c)
8387 
	- gs_lib_paths was declared const in one place and non-const in
8388 
another.  (zfile.c)
8389 
	- file_restore and font_restore had inconsistent const declarations
8390 
for their argument.  (isave.c)
8391 
	- iodev_os_open_file was missing its last formal parameter.
8392 
(ziodev.c)
8393 
	- gs.c declared gs_devicename with an incorrect extern.  (gs.c)
8394 
	- undefinefont didn't interact properly with the resource
8395 
machinery.  (gs_lev2.ps)
8396 
	- The declaration for swap_entry used a typedef name as a formal
8397 
parameter, which upset some compilers.  (zmisc2.c)
8398 
	- Including the ccinit feature could cause the garbage collector to
8399 
make an invalid access.  (stream.c)
8400 
	- The check for t_[a]struct types in ztype.c was incorrect.
8401 
(ztype.c)
8402 
	- After the collection of halftone samples, temporary data
8403 
structures were freed incorrectly.  (gzht.h, gsht1.c, zht.c)
8404 
	- Images with source width between 489 and 492 crashed the
8405 
memory manager.  (iastate.h)
8406 
 
8407 
Makes it possible to define SEARCH_HERE_FIRST (gsmain.c) in the makefile.
8408 
(gsmain.c)
8409 
 
8410 
Splits the Level 2 resource machinery into a separate file.  (gs_lev2.ps,
8411 
gs_res.ps, gs.mak, unix-end.mak, vms.mak).
8412 
 
8413 
Changes the names of the DiffEncode/Decode filters to
8414 
PixelDifferenceEncode/Decode, and splits them off into a separate
8415 
"feature".  (gs.mak, zfilter2.c, zfpdiff.c, spdiff.c, spdiffx.h)
8416 
 
8417 
Adds experimental code for filtered image scaling.  DON'T USE THIS CODE.
8418 
(zimage2.c)
8419 
 
8420 
</pre><h3><a name="V3.01_Streams"></a>Streams</h3><pre>
8421 
 
8422 
Fixes bugs:
8423 
	- The CCITTFaxEncode filter could put out an EOB in the middle of
8424 
the data.  (scfe.c)
8425 
 
8426 
Splits off the PixelDifferenceEncode/Decode filters into a separate
8427 
"feature".  (gs.mak)
8428 
 
8429 
</pre><h3><a name="V3.01_Library"></a>Library</h3><pre>
8430 
 
8431 
Fixes bugs:
8432 
	- gs_setcachedevice could return a garbage error code.  (gschar.c)
8433 
	- joins on stroked lines were incorrect if the device coordinate
8434 
system mapped +Y to +Y.  (gxstroke.c)
8435 
	- If gsmisc.c supplied versions of missing library routines, they
8436 
could clash with the names of the real ones if those were present
8437 
unexpectedly.  (memory_.h, gsmisc.c)
8438 
	- The initialization expression for is_open in the
8439 
dev_init_misc_open macro included a cast, which some compilers don't allow.
8440 
(gxdevice.h, gsdevice.c, gxclip2.c, gxpcmap.c)
8441 
	- In Type 1 fonts, character that specified their side bearing and
8442 
width with sbw rather than hsbw gave an invalidfont error.  (gstype1.c)
8443 
	- Some procedures were declared inconsistently with regard to const
8444 
arguments.  (gscie.c, gxpcmap.c, gxacpath.c, gxcmap.c)
8445 
	- A few places still assumed that pointers occupied 4 bytes.
8446 
(gxclist.c)
8447 
	- Rendering a gray halftone on a CMYK device called the device's
8448 
map_rgb_color procedure instead of map_cmyk_color.  (gxdither.c)
8449 
 
8450 
Renames gsfile.c as gswppm.c.  (gsfile.c, gswppm.c)
8451 
 
8452 
Implements the ability to cache arbitrarily transformed characters.  This
8453 
is currently enabled by a compile-time flag in gschar.c.  (gschar.c)
8454 
 
8455 
</pre>
8456 
 
8457 
<h2><a name="Version3.0"></a>Version 3.0 (8/1/94)</h2>
8458 
 
8459 
<p>
8460 
This is the first full Level 2 version released to the public.
8461 
Unfortunately, we were not able to include setpagedevice in this release.
8462 
 
8463 
<h3><a name="V3.0_Documentation"></a>Documentation</h3><pre>
8464 
 
8465 
Fixes bugs:
8466 
	- README didn't mention Aladdin's European distributor.
8467 
	- psfiles.doc didn't describe some of the newer gs_*.ps files.
8468 
 
8469 
Notes that gcc -O2 (version 2.5.8 of gcc) generates incorrect code for some
8470 
modules on the H-P RISC architecture.
8471 
 
8472 
Notes that on AXP platforms running VMS, DEC C V4.0 is required.
8473 
 
8474 
</pre><h3><a name="V3.0_Procedures"></a>Procedures</h3><pre>
8475 
 
8476 
Fixes bugs:
8477 
	- 'make clean' didn't delete devs.tr or t.tr.
8478 
	- devs.mak was missing the entry for faxg32d.
8479 
	- unixansi.mak omitted some drivers that were included in
8480 
unix-cc.mak and unix-gcc.mak.
8481 
 
8482 
Updates jpeg.mak to reference version 5beta1 of the IJG JPEG code.
8483 
 
8484 
Changes the version numbering scheme from A.B.C to A.B[CC].  I.e., the
8485 
first sub-release after 3.0 will be 3.01 or 3.001, not 3.0.1.
8486 
 
8487 
</pre><h3><a name="V3.0_Utilities"></a>Utilities</h3><pre>
8488 
 
8489 
Fixes bugs:
8490 
	- ps2ascii didn't do a setglobal.
8491 
 
8492 
Adds an option to ansi2knr to convert ... to va_alist/va_dcl.
8493 
 
8494 
</pre><h3><a name="V3.0_Drivers"></a>Drivers</h3><pre>
8495 
 
8496 
Fixes bugs:
8497 
	- The newly added faxg32d driver didn't have an entry in devs.mak.
8498 
	- The BMP, GIF, and PCX drivers wrote out an incorrect color
8499 
palette (the blue values were too small).
8500 
	- The vgalib driver had some compilation problems.
8501 
	- The TIFF drivers didn't produce correct multi-page output.
8502 
 
8503 
Adds faxg32d and tiffg32d drivers.
8504 
 
8505 
Reinstates the DigiFax drivers, which were withdrawn when the new fax
8506 
drivers were added.
8507 
 
8508 
</pre><h3><a name="V3.0_Platforms"></a>Platforms</h3><pre>
8509 
 
8510 
Fixes bugs:
8511 
	- gs_btokn.ps and gs_ccfnt.ps weren't installed on Unix platforms.
8512 
	- The VMS module list omitted SBHC, included a non-existent GXDASH,
8513 
and had incorrect names for some of the IJG JPEG files.
8514 
	- The VMS build scripts (vms*.mak) had incorrect "boilerplate".
8515 
	- The VMS script file gssetmod.com had \r characters in it, as well
8516 
as \n characters.
8517 
	- The echogs and genarch utilities didn't return the correct exit
8518 
codes under VMS.
8519 
	- The VMS Fontmap had incorrect entries for the Courier and Charter
8520 
fonts.
8521 
	- When running under Ghostview, Ghostscript didn't drain the input
8522 
pipe.  (We fixed this with a temporary patch in gs.c; this isn't a good
8523 
solution for the longer term.)
8524 
 
8525 
</pre><h3><a name="V3.0_Fonts"></a>Fonts</h3><pre>
8526 
 
8527 
Fixes bugs:
8528 
	- The free AvantGarde, Bookman, and Palatino font families had
8529 
incorrect FontBBox values.
8530 
	- The 'f' and 'j' in the free AvantGarde-DemiOblique,
8531 
Bookman-DemiItalic, Bookman-LightItalic, and Palatino-Italic fonts were
8532 
chopped off on the right.  (The bitmaps were chopped off in the original
8533 
BDF fonts from which these fonts were made.)  ****** THIS PROBLEM WAS NOT
8534 
ACTUALLY FIXED. ******
8535 
 
8536 
</pre><h3><a name="V3.0_Interpreter"></a>Interpreter</h3><pre>
8537 
 
8538 
Fixes bugs:
8539 
	- gs -h and gs -v didn't print the tertiary version number correctly.
8540 
	- Binary object sequences with no strings or names didn't read in
8541 
correctly.
8542 
	- Binary object sequences that crossed an input buffer boundary
8543 
didn't read in correctly.
8544 
	- Binary object sequences read in as {[e1 .. en] e1 ... en} instead
8545 
of {[e1 ... en]}.  (New bug in 2.9.x.)
8546 
	- setpattern didn't set the current color space correctly if the
8547 
current color space wasn't a Pattern space.
8548 
	- If the current color space was an uncolored Pattern space but the
8549 
current color was a colored Pattern, currentcolor returned extra values on
8550 
the operands stack.
8551 
	- .buildfont1 in gs_type1.ps didn't force binding of the old
8552 
definition, causing ps2ascii to loop endlessly.
8553 
 
8554 
Adds a facility for writing and reading dictionaries in binary object
8555 
sequences.  This is experimental and subject to change in the future.
8556 
 
8557 
</pre><h3><a name="V3.0_Streams"></a>Streams</h3><pre>
8558 
 
8559 
Fixes bugs:
8560 
	- gs_run_string and ccinit didn't have any way to mark the string
8561 
as "foreign", which confused the GC.
8562 
 
8563 
</pre><h3><a name="V3.0_Library"></a>Library</h3><pre>
8564 
 
8565 
Fixes bugs:
8566 
	- gxchar.h had an extra comma after the last element of the
8567 
show_width_status enum, which upset some compilers.
8568 
	- stroke and strokepath didn't correctly skip zero-length segments
8569 
if the line width was less than one pixel, or if there was a closed subpath
8570 
consisting entirely of zero-length segments.
8571 
	- strokepath sometimes incorrectly added a moveto at the end of the
8572 
path.
8573 
</pre>
8574 
 
8575 
<!-- [3.0 begin visible trailer] =========================================== -->
8576 
<hr>
8577 
 
8578 
<p>
8579 
<small>Copyright &copy; 1996, 1997, 1998 Aladdin Enterprises.
8580 
All rights reserved.</small>
8581 
 
8582 
<p>
8583 
This software is provided AS-IS with no warranty, either express or
8584 
implied.
8585 
 
8586 
This software is distributed under license and may not be copied,
8587 
modified or distributed except as expressly authorized under the terms
8588 
of the license contained in the file LICENSE in this distribution.
8589 
 
8590 
For more information about licensing, please refer to
8591 
http://www.ghostscript.com/licensing/. For information on
8592 
commercial licensing, go to http://www.artifex.com/licensing/ or
8593 
contact Artifex Software, Inc., 101 Lucas Valley Road #110,
8594 
San Rafael, CA  94903, U.S.A., +1(415)492-9861.
8595 
 
8596 
<p>
8597 
<small>Ghostscript version 8.53, 20 October 2005
8598 
 
8599 
 
8600 
<!-- [3.0 end visible trailer] ============================================= -->
8601 
 
8602 
</body>
8603 
</html>