| 2 |
- |
1 |
#ifdef PLAN9
|
|
|
2 |
#pragma src "/sys/src/libdraw"
|
|
|
3 |
#pragma lib "libdraw.a"
|
|
|
4 |
#endif
|
|
|
5 |
|
|
|
6 |
typedef struct Cachefont Cachefont;
|
|
|
7 |
typedef struct Cacheinfo Cacheinfo;
|
|
|
8 |
typedef struct Cachesubf Cachesubf;
|
|
|
9 |
typedef struct Display Display;
|
|
|
10 |
typedef struct Font Font;
|
|
|
11 |
typedef struct Fontchar Fontchar;
|
|
|
12 |
typedef struct Image Image;
|
|
|
13 |
typedef struct Mouse Mouse;
|
|
|
14 |
typedef struct Point Point;
|
|
|
15 |
typedef struct Rectangle Rectangle;
|
|
|
16 |
typedef struct RGB RGB;
|
|
|
17 |
typedef struct Screen Screen;
|
|
|
18 |
typedef struct Subfont Subfont;
|
|
|
19 |
|
|
|
20 |
#ifdef VARARGCK
|
|
|
21 |
#pragma varargck type "R" Rectangle
|
|
|
22 |
#pragma varargck type "P" Point
|
|
|
23 |
#endif
|
|
|
24 |
extern int Rfmt(Fmt*);
|
|
|
25 |
extern int Pfmt(Fmt*);
|
|
|
26 |
|
|
|
27 |
enum
|
|
|
28 |
{
|
|
|
29 |
DOpaque = 0xFFFFFFFF,
|
|
|
30 |
DTransparent = 0x00000000, /* only useful for allocimage, memfillcolor */
|
|
|
31 |
DBlack = 0x000000FF,
|
|
|
32 |
DWhite = 0xFFFFFFFF,
|
|
|
33 |
DRed = 0xFF0000FF,
|
|
|
34 |
DGreen = 0x00FF00FF,
|
|
|
35 |
DBlue = 0x0000FFFF,
|
|
|
36 |
DCyan = 0x00FFFFFF,
|
|
|
37 |
DMagenta = 0xFF00FFFF,
|
|
|
38 |
DYellow = 0xFFFF00FF,
|
|
|
39 |
DPaleyellow = 0xFFFFAAFF,
|
|
|
40 |
DDarkyellow = 0xEEEE9EFF,
|
|
|
41 |
DDarkgreen = 0x448844FF,
|
|
|
42 |
DPalegreen = 0xAAFFAAFF,
|
|
|
43 |
DMedgreen = 0x88CC88FF,
|
|
|
44 |
DDarkblue = 0x000055FF,
|
|
|
45 |
DPalebluegreen= 0xAAFFFFFF,
|
|
|
46 |
DPaleblue = 0x0000BBFF,
|
|
|
47 |
DBluegreen = 0x008888FF,
|
|
|
48 |
DGreygreen = 0x55AAAAFF,
|
|
|
49 |
DPalegreygreen = 0x9EEEEEFF,
|
|
|
50 |
DYellowgreen = 0x99994CFF,
|
|
|
51 |
DMedblue = 0x000099FF,
|
|
|
52 |
DGreyblue = 0x005DBBFF,
|
|
|
53 |
DPalegreyblue = 0x4993DDFF,
|
|
|
54 |
DPurpleblue = 0x8888CCFF,
|
|
|
55 |
|
|
|
56 |
DNotacolor = 0xFFFFFF00,
|
|
|
57 |
DNofill = DNotacolor,
|
|
|
58 |
|
|
|
59 |
};
|
|
|
60 |
|
|
|
61 |
enum
|
|
|
62 |
{
|
|
|
63 |
Displaybufsize = 8000,
|
|
|
64 |
ICOSSCALE = 1024,
|
|
|
65 |
Borderwidth = 4,
|
|
|
66 |
};
|
|
|
67 |
|
|
|
68 |
enum
|
|
|
69 |
{
|
|
|
70 |
/* refresh methods */
|
|
|
71 |
Refbackup = 0,
|
|
|
72 |
Refnone = 1,
|
|
|
73 |
Refmesg = 2
|
|
|
74 |
};
|
|
|
75 |
#define NOREFRESH ((void*)-1)
|
|
|
76 |
|
|
|
77 |
enum
|
|
|
78 |
{
|
|
|
79 |
/* line ends */
|
|
|
80 |
Endsquare = 0,
|
|
|
81 |
Enddisc = 1,
|
|
|
82 |
Endarrow = 2,
|
|
|
83 |
Endmask = 0x1F
|
|
|
84 |
};
|
|
|
85 |
|
|
|
86 |
#define ARROW(a, b, c) (Endarrow|((a)<<5)|((b)<<14)|((c)<<23))
|
|
|
87 |
|
|
|
88 |
typedef enum
|
|
|
89 |
{
|
|
|
90 |
/* Porter-Duff compositing operators */
|
|
|
91 |
Clear = 0,
|
|
|
92 |
|
|
|
93 |
SinD = 8,
|
|
|
94 |
DinS = 4,
|
|
|
95 |
SoutD = 2,
|
|
|
96 |
DoutS = 1,
|
|
|
97 |
|
|
|
98 |
S = SinD|SoutD,
|
|
|
99 |
SoverD = SinD|SoutD|DoutS,
|
|
|
100 |
SatopD = SinD|DoutS,
|
|
|
101 |
SxorD = SoutD|DoutS,
|
|
|
102 |
|
|
|
103 |
D = DinS|DoutS,
|
|
|
104 |
DoverS = DinS|DoutS|SoutD,
|
|
|
105 |
DatopS = DinS|SoutD,
|
|
|
106 |
DxorS = DoutS|SoutD, /* == SxorD */
|
|
|
107 |
|
|
|
108 |
Ncomp = 12,
|
|
|
109 |
} Drawop;
|
|
|
110 |
|
|
|
111 |
/*
|
|
|
112 |
* image channel descriptors
|
|
|
113 |
*/
|
|
|
114 |
enum {
|
|
|
115 |
CRed = 0,
|
|
|
116 |
CGreen,
|
|
|
117 |
CBlue,
|
|
|
118 |
CGrey,
|
|
|
119 |
CAlpha,
|
|
|
120 |
CMap,
|
|
|
121 |
CIgnore,
|
|
|
122 |
NChan,
|
|
|
123 |
};
|
|
|
124 |
|
|
|
125 |
#define __DC(type, nbits) ((((type)&15)<<4)|((nbits)&15))
|
|
|
126 |
#define CHAN1(a,b) __DC(a,b)
|
|
|
127 |
#define CHAN2(a,b,c,d) (CHAN1((a),(b))<<8|__DC((c),(d)))
|
|
|
128 |
#define CHAN3(a,b,c,d,e,f) (CHAN2((a),(b),(c),(d))<<8|__DC((e),(f)))
|
|
|
129 |
#define CHAN4(a,b,c,d,e,f,g,h) (CHAN3((a),(b),(c),(d),(e),(f))<<8|__DC((g),(h)))
|
|
|
130 |
|
|
|
131 |
#define NBITS(c) ((c)&15)
|
|
|
132 |
#define TYPE(c) (((c)>>4)&15)
|
|
|
133 |
|
|
|
134 |
enum {
|
|
|
135 |
GREY1 = CHAN1(CGrey, 1),
|
|
|
136 |
GREY2 = CHAN1(CGrey, 2),
|
|
|
137 |
GREY4 = CHAN1(CGrey, 4),
|
|
|
138 |
GREY8 = CHAN1(CGrey, 8),
|
|
|
139 |
CMAP8 = CHAN1(CMap, 8),
|
|
|
140 |
RGB15 = CHAN4(CIgnore, 1, CRed, 5, CGreen, 5, CBlue, 5),
|
|
|
141 |
RGB16 = CHAN3(CRed, 5, CGreen, 6, CBlue, 5),
|
|
|
142 |
RGB24 = CHAN3(CRed, 8, CGreen, 8, CBlue, 8),
|
|
|
143 |
BGR24 = CHAN3(CBlue, 8, CGreen, 8, CRed, 8),
|
|
|
144 |
RGBA32 = CHAN4(CRed, 8, CGreen, 8, CBlue, 8, CAlpha, 8),
|
|
|
145 |
ARGB32 = CHAN4(CAlpha, 8, CRed, 8, CGreen, 8, CBlue, 8), /* stupid VGAs */
|
|
|
146 |
XRGB32 = CHAN4(CIgnore, 8, CRed, 8, CGreen, 8, CBlue, 8),
|
|
|
147 |
XBGR32 = CHAN4(CIgnore, 8, CBlue, 8, CGreen, 8, CRed, 8),
|
|
|
148 |
};
|
|
|
149 |
|
|
|
150 |
extern char* chantostr(char*, ulong);
|
|
|
151 |
extern ulong strtochan(char*);
|
|
|
152 |
extern int chantodepth(ulong);
|
|
|
153 |
|
|
|
154 |
struct Point
|
|
|
155 |
{
|
|
|
156 |
int x;
|
|
|
157 |
int y;
|
|
|
158 |
};
|
|
|
159 |
|
|
|
160 |
struct Rectangle
|
|
|
161 |
{
|
|
|
162 |
Point min;
|
|
|
163 |
Point max;
|
|
|
164 |
};
|
|
|
165 |
|
|
|
166 |
typedef void (*Reffn)(Image*, Rectangle, void*);
|
|
|
167 |
|
|
|
168 |
struct Screen
|
|
|
169 |
{
|
|
|
170 |
Display *display; /* display holding data */
|
|
|
171 |
int id; /* id of system-held Screen */
|
|
|
172 |
Image *image; /* unused; for reference only */
|
|
|
173 |
Image *fill; /* color to paint behind windows */
|
|
|
174 |
};
|
|
|
175 |
|
|
|
176 |
struct Display
|
|
|
177 |
{
|
|
|
178 |
QLock qlock;
|
|
|
179 |
int locking; /*program is using lockdisplay */
|
|
|
180 |
int dirno;
|
|
|
181 |
int fd;
|
|
|
182 |
int reffd;
|
|
|
183 |
int ctlfd;
|
|
|
184 |
int imageid;
|
|
|
185 |
int local;
|
|
|
186 |
void (*error)(Display*, char*);
|
|
|
187 |
char *devdir;
|
|
|
188 |
char *windir;
|
|
|
189 |
char oldlabel[64];
|
|
|
190 |
ulong dataqid;
|
|
|
191 |
Image *white;
|
|
|
192 |
Image *black;
|
|
|
193 |
Image *opaque;
|
|
|
194 |
Image *transparent;
|
|
|
195 |
Image *image;
|
|
|
196 |
uchar *buf;
|
|
|
197 |
int bufsize;
|
|
|
198 |
uchar *bufp;
|
|
|
199 |
Font *defaultfont;
|
|
|
200 |
Subfont *defaultsubfont;
|
|
|
201 |
Image *windows;
|
|
|
202 |
Image *screenimage;
|
|
|
203 |
int _isnewdisplay;
|
|
|
204 |
};
|
|
|
205 |
|
|
|
206 |
struct Image
|
|
|
207 |
{
|
|
|
208 |
Display *display; /* display holding data */
|
|
|
209 |
int id; /* id of system-held Image */
|
|
|
210 |
Rectangle r; /* rectangle in data area, local coords */
|
|
|
211 |
Rectangle clipr; /* clipping region */
|
|
|
212 |
int depth; /* number of bits per pixel */
|
|
|
213 |
ulong chan;
|
|
|
214 |
int repl; /* flag: data replicates to tile clipr */
|
|
|
215 |
Screen *screen; /* 0 if not a window */
|
|
|
216 |
Image *next; /* next in list of windows */
|
|
|
217 |
};
|
|
|
218 |
|
|
|
219 |
struct RGB
|
|
|
220 |
{
|
|
|
221 |
ulong red;
|
|
|
222 |
ulong green;
|
|
|
223 |
ulong blue;
|
|
|
224 |
};
|
|
|
225 |
|
|
|
226 |
/*
|
|
|
227 |
* Subfonts
|
|
|
228 |
*
|
|
|
229 |
* given char c, Subfont *f, Fontchar *i, and Point p, one says
|
|
|
230 |
* i = f->info+c;
|
|
|
231 |
* draw(b, Rect(p.x+i->left, p.y+i->top,
|
|
|
232 |
* p.x+i->left+((i+1)->x-i->x), p.y+i->bottom),
|
|
|
233 |
* color, f->bits, Pt(i->x, i->top));
|
|
|
234 |
* p.x += i->width;
|
|
|
235 |
* to draw characters in the specified color (itself an Image) in Image b.
|
|
|
236 |
*/
|
|
|
237 |
|
|
|
238 |
struct Fontchar
|
|
|
239 |
{
|
|
|
240 |
int x; /* left edge of bits */
|
|
|
241 |
uchar top; /* first non-zero scan-line */
|
|
|
242 |
uchar bottom; /* last non-zero scan-line + 1 */
|
|
|
243 |
char left; /* offset of baseline */
|
|
|
244 |
uchar width; /* width of baseline */
|
|
|
245 |
};
|
|
|
246 |
|
|
|
247 |
struct Subfont
|
|
|
248 |
{
|
|
|
249 |
char *name;
|
|
|
250 |
short n; /* number of chars in font */
|
|
|
251 |
uchar height; /* height of image */
|
|
|
252 |
char ascent; /* top of image to baseline */
|
|
|
253 |
Fontchar *info; /* n+1 character descriptors */
|
|
|
254 |
Image *bits; /* of font */
|
|
|
255 |
int ref;
|
|
|
256 |
};
|
|
|
257 |
|
|
|
258 |
enum
|
|
|
259 |
{
|
|
|
260 |
/* starting values */
|
|
|
261 |
LOG2NFCACHE = 6,
|
|
|
262 |
NFCACHE = (1<<LOG2NFCACHE), /* #chars cached */
|
|
|
263 |
NFLOOK = 5, /* #chars to scan in cache */
|
|
|
264 |
NFSUBF = 2, /* #subfonts to cache */
|
|
|
265 |
/* max value */
|
|
|
266 |
MAXFCACHE = 1024+NFLOOK, /* upper limit */
|
|
|
267 |
MAXSUBF = 50, /* generous upper limit */
|
|
|
268 |
/* deltas */
|
|
|
269 |
DSUBF = 4,
|
|
|
270 |
/* expiry ages */
|
|
|
271 |
SUBFAGE = 10000,
|
|
|
272 |
CACHEAGE = 10000
|
|
|
273 |
};
|
|
|
274 |
|
|
|
275 |
struct Cachefont
|
|
|
276 |
{
|
|
|
277 |
Rune min; /* lowest rune value to be taken from subfont */
|
|
|
278 |
Rune max; /* highest rune value+1 to be taken from subfont */
|
|
|
279 |
int offset; /* position in subfont of character at min */
|
|
|
280 |
char *name; /* stored in font */
|
|
|
281 |
char *subfontname; /* to access subfont */
|
|
|
282 |
};
|
|
|
283 |
|
|
|
284 |
struct Cacheinfo
|
|
|
285 |
{
|
|
|
286 |
ushort x; /* left edge of bits */
|
|
|
287 |
uchar width; /* width of baseline */
|
|
|
288 |
schar left; /* offset of baseline */
|
|
|
289 |
Rune value; /* value of character at this slot in cache */
|
|
|
290 |
ushort age;
|
|
|
291 |
};
|
|
|
292 |
|
|
|
293 |
struct Cachesubf
|
|
|
294 |
{
|
|
|
295 |
ulong age; /* for replacement */
|
|
|
296 |
Cachefont *cf; /* font info that owns us */
|
|
|
297 |
Subfont *f; /* attached subfont */
|
|
|
298 |
};
|
|
|
299 |
|
|
|
300 |
struct Font
|
|
|
301 |
{
|
|
|
302 |
char *name;
|
|
|
303 |
Display *display;
|
|
|
304 |
short height; /* max height of image, interline spacing */
|
|
|
305 |
short ascent; /* top of image to baseline */
|
|
|
306 |
short width; /* widest so far; used in caching only */
|
|
|
307 |
short nsub; /* number of subfonts */
|
|
|
308 |
ulong age; /* increasing counter; used for LRU */
|
|
|
309 |
int maxdepth; /* maximum depth of all loaded subfonts */
|
|
|
310 |
int ncache; /* size of cache */
|
|
|
311 |
int nsubf; /* size of subfont list */
|
|
|
312 |
Cacheinfo *cache;
|
|
|
313 |
Cachesubf *subf;
|
|
|
314 |
Cachefont **sub; /* as read from file */
|
|
|
315 |
Image *cacheimage;
|
|
|
316 |
};
|
|
|
317 |
|
|
|
318 |
#define Dx(r) ((r).max.x-(r).min.x)
|
|
|
319 |
#define Dy(r) ((r).max.y-(r).min.y)
|
|
|
320 |
|
|
|
321 |
/*
|
|
|
322 |
* Image management
|
|
|
323 |
*/
|
|
|
324 |
extern Image* _allocimage(Image*, Display*, Rectangle, ulong, int, ulong, int, int);
|
|
|
325 |
extern Image* allocimage(Display*, Rectangle, ulong, int, ulong);
|
|
|
326 |
extern uchar* bufimage(Display*, int);
|
|
|
327 |
extern int bytesperline(Rectangle, int);
|
|
|
328 |
extern void closedisplay(Display*);
|
|
|
329 |
extern void drawerror(Display*, char*);
|
|
|
330 |
extern int flushimage(Display*, int);
|
|
|
331 |
extern int freeimage(Image*);
|
|
|
332 |
extern int _freeimage1(Image*);
|
|
|
333 |
extern int geninitdraw(char*, void(*)(Display*, char*), char*, char*, char*, int);
|
|
|
334 |
extern int initdraw(void(*)(Display*, char*), char*, char*);
|
|
|
335 |
extern int newwindow(char*);
|
|
|
336 |
extern Display* initdisplay(char*, char*, void(*)(Display*, char*));
|
|
|
337 |
extern int loadimage(Image*, Rectangle, uchar*, int);
|
|
|
338 |
extern int cloadimage(Image*, Rectangle, uchar*, int);
|
|
|
339 |
extern int getwindow(Display*, int);
|
|
|
340 |
extern int gengetwindow(Display*, char*, Image**, Screen**, int);
|
|
|
341 |
extern Image* readimage(Display*, int, int);
|
|
|
342 |
extern Image* creadimage(Display*, int, int);
|
|
|
343 |
extern int unloadimage(Image*, Rectangle, uchar*, int);
|
|
|
344 |
extern int wordsperline(Rectangle, int);
|
|
|
345 |
extern int writeimage(int, Image*, int);
|
|
|
346 |
extern Image* namedimage(Display*, char*);
|
|
|
347 |
extern int nameimage(Image*, char*, int);
|
|
|
348 |
extern Image* allocimagemix(Display*, ulong, ulong);
|
|
|
349 |
|
|
|
350 |
/*
|
|
|
351 |
* Colors
|
|
|
352 |
*/
|
|
|
353 |
extern void readcolmap(Display*, RGB*);
|
|
|
354 |
extern void writecolmap(Display*, RGB*);
|
|
|
355 |
extern ulong setalpha(ulong, uchar);
|
|
|
356 |
|
|
|
357 |
/*
|
|
|
358 |
* Windows
|
|
|
359 |
*/
|
|
|
360 |
extern Screen* allocscreen(Image*, Image*, int);
|
|
|
361 |
extern Image* _allocwindow(Image*, Screen*, Rectangle, int, ulong);
|
|
|
362 |
extern Image* allocwindow(Screen*, Rectangle, int, ulong);
|
|
|
363 |
extern void bottomnwindows(Image**, int);
|
|
|
364 |
extern void bottomwindow(Image*);
|
|
|
365 |
extern int freescreen(Screen*);
|
|
|
366 |
extern Screen* publicscreen(Display*, int, ulong);
|
|
|
367 |
extern void topnwindows(Image**, int);
|
|
|
368 |
extern void topwindow(Image*);
|
|
|
369 |
extern int originwindow(Image*, Point, Point);
|
|
|
370 |
|
|
|
371 |
/*
|
|
|
372 |
* Geometry
|
|
|
373 |
*/
|
|
|
374 |
extern Point Pt(int, int);
|
|
|
375 |
extern Rectangle Rect(int, int, int, int);
|
|
|
376 |
extern Rectangle Rpt(Point, Point);
|
|
|
377 |
extern Point addpt(Point, Point);
|
|
|
378 |
extern Point subpt(Point, Point);
|
|
|
379 |
extern Point divpt(Point, int);
|
|
|
380 |
extern Point mulpt(Point, int);
|
|
|
381 |
extern int eqpt(Point, Point);
|
|
|
382 |
extern int eqrect(Rectangle, Rectangle);
|
|
|
383 |
extern Rectangle insetrect(Rectangle, int);
|
|
|
384 |
extern Rectangle rectaddpt(Rectangle, Point);
|
|
|
385 |
extern Rectangle rectsubpt(Rectangle, Point);
|
|
|
386 |
extern Rectangle canonrect(Rectangle);
|
|
|
387 |
extern int rectXrect(Rectangle, Rectangle);
|
|
|
388 |
extern int rectinrect(Rectangle, Rectangle);
|
|
|
389 |
extern void combinerect(Rectangle*, Rectangle);
|
|
|
390 |
extern int rectclip(Rectangle*, Rectangle);
|
|
|
391 |
extern int ptinrect(Point, Rectangle);
|
|
|
392 |
extern void replclipr(Image*, int, Rectangle);
|
|
|
393 |
extern int drawreplxy(int, int, int); /* used to be drawsetxy */
|
|
|
394 |
extern Point drawrepl(Rectangle, Point);
|
|
|
395 |
extern int rgb2cmap(int, int, int);
|
|
|
396 |
extern int cmap2rgb(int);
|
|
|
397 |
extern int cmap2rgba(int);
|
|
|
398 |
extern void icossin(int, int*, int*);
|
|
|
399 |
extern void icossin2(int, int, int*, int*);
|
|
|
400 |
|
|
|
401 |
/*
|
|
|
402 |
* Graphics
|
|
|
403 |
*/
|
|
|
404 |
extern void draw(Image*, Rectangle, Image*, Image*, Point);
|
|
|
405 |
extern void drawop(Image*, Rectangle, Image*, Image*, Point, Drawop);
|
|
|
406 |
extern void gendraw(Image*, Rectangle, Image*, Point, Image*, Point);
|
|
|
407 |
extern void gendrawop(Image*, Rectangle, Image*, Point, Image*, Point, Drawop);
|
|
|
408 |
extern void line(Image*, Point, Point, int, int, int, Image*, Point);
|
|
|
409 |
extern void lineop(Image*, Point, Point, int, int, int, Image*, Point, Drawop);
|
|
|
410 |
extern void poly(Image*, Point*, int, int, int, int, Image*, Point);
|
|
|
411 |
extern void polyop(Image*, Point*, int, int, int, int, Image*, Point, Drawop);
|
|
|
412 |
extern void fillpoly(Image*, Point*, int, int, Image*, Point);
|
|
|
413 |
extern void fillpolyop(Image*, Point*, int, int, Image*, Point, Drawop);
|
|
|
414 |
extern Point string(Image*, Point, Image*, Point, Font*, char*);
|
|
|
415 |
extern Point stringop(Image*, Point, Image*, Point, Font*, char*, Drawop);
|
|
|
416 |
extern Point stringn(Image*, Point, Image*, Point, Font*, char*, int);
|
|
|
417 |
extern Point stringnop(Image*, Point, Image*, Point, Font*, char*, int, Drawop);
|
|
|
418 |
extern Point runestring(Image*, Point, Image*, Point, Font*, Rune*);
|
|
|
419 |
extern Point runestringop(Image*, Point, Image*, Point, Font*, Rune*, Drawop);
|
|
|
420 |
extern Point runestringn(Image*, Point, Image*, Point, Font*, Rune*, int);
|
|
|
421 |
extern Point runestringnop(Image*, Point, Image*, Point, Font*, Rune*, int, Drawop);
|
|
|
422 |
extern Point stringbg(Image*, Point, Image*, Point, Font*, char*, Image*, Point);
|
|
|
423 |
extern Point stringbgop(Image*, Point, Image*, Point, Font*, char*, Image*, Point, Drawop);
|
|
|
424 |
extern Point stringnbg(Image*, Point, Image*, Point, Font*, char*, int, Image*, Point);
|
|
|
425 |
extern Point stringnbgop(Image*, Point, Image*, Point, Font*, char*, int, Image*, Point, Drawop);
|
|
|
426 |
extern Point runestringbg(Image*, Point, Image*, Point, Font*, Rune*, Image*, Point);
|
|
|
427 |
extern Point runestringbgop(Image*, Point, Image*, Point, Font*, Rune*, Image*, Point, Drawop);
|
|
|
428 |
extern Point runestringnbg(Image*, Point, Image*, Point, Font*, Rune*, int, Image*, Point);
|
|
|
429 |
extern Point runestringnbgop(Image*, Point, Image*, Point, Font*, Rune*, int, Image*, Point, Drawop);
|
|
|
430 |
extern Point _string(Image*, Point, Image*, Point, Font*, char*, Rune*, int, Rectangle, Image*, Point, Drawop);
|
|
|
431 |
extern Point stringsubfont(Image*, Point, Image*, Subfont*, char*);
|
|
|
432 |
extern int bezier(Image*, Point, Point, Point, Point, int, int, int, Image*, Point);
|
|
|
433 |
extern int bezierop(Image*, Point, Point, Point, Point, int, int, int, Image*, Point, Drawop);
|
|
|
434 |
extern int bezspline(Image*, Point*, int, int, int, int, Image*, Point);
|
|
|
435 |
extern int bezsplineop(Image*, Point*, int, int, int, int, Image*, Point, Drawop);
|
|
|
436 |
extern int bezsplinepts(Point*, int, Point**);
|
|
|
437 |
extern int fillbezier(Image*, Point, Point, Point, Point, int, Image*, Point);
|
|
|
438 |
extern int fillbezierop(Image*, Point, Point, Point, Point, int, Image*, Point, Drawop);
|
|
|
439 |
extern int fillbezspline(Image*, Point*, int, int, Image*, Point);
|
|
|
440 |
extern int fillbezsplineop(Image*, Point*, int, int, Image*, Point, Drawop);
|
|
|
441 |
extern void ellipse(Image*, Point, int, int, int, Image*, Point);
|
|
|
442 |
extern void ellipseop(Image*, Point, int, int, int, Image*, Point, Drawop);
|
|
|
443 |
extern void fillellipse(Image*, Point, int, int, Image*, Point);
|
|
|
444 |
extern void fillellipseop(Image*, Point, int, int, Image*, Point, Drawop);
|
|
|
445 |
extern void arc(Image*, Point, int, int, int, Image*, Point, int, int);
|
|
|
446 |
extern void arcop(Image*, Point, int, int, int, Image*, Point, int, int, Drawop);
|
|
|
447 |
extern void fillarc(Image*, Point, int, int, Image*, Point, int, int);
|
|
|
448 |
extern void fillarcop(Image*, Point, int, int, Image*, Point, int, int, Drawop);
|
|
|
449 |
extern void border(Image*, Rectangle, int, Image*, Point);
|
|
|
450 |
extern void borderop(Image*, Rectangle, int, Image*, Point, Drawop);
|
|
|
451 |
|
|
|
452 |
/*
|
|
|
453 |
* Font management
|
|
|
454 |
*/
|
|
|
455 |
extern Font* openfont(Display*, char*);
|
|
|
456 |
extern Font* buildfont(Display*, char*, char*);
|
|
|
457 |
extern void freefont(Font*);
|
|
|
458 |
extern Font* mkfont(Subfont*, Rune);
|
|
|
459 |
extern int cachechars(Font*, char**, Rune**, ushort*, int, int*, char**);
|
|
|
460 |
extern void agefont(Font*);
|
|
|
461 |
extern Subfont* allocsubfont(char*, int, int, int, Fontchar*, Image*);
|
|
|
462 |
extern Subfont* lookupsubfont(Display*, char*);
|
|
|
463 |
extern void installsubfont(char*, Subfont*);
|
|
|
464 |
extern void uninstallsubfont(Subfont*);
|
|
|
465 |
extern void freesubfont(Subfont*);
|
|
|
466 |
extern Subfont* readsubfont(Display*, char*, int, int);
|
|
|
467 |
extern Subfont* readsubfonti(Display*, char*, int, Image*, int);
|
|
|
468 |
extern int writesubfont(int, Subfont*);
|
|
|
469 |
extern void _unpackinfo(Fontchar*, uchar*, int);
|
|
|
470 |
extern Point stringsize(Font*, char*);
|
|
|
471 |
extern int stringwidth(Font*, char*);
|
|
|
472 |
extern int stringnwidth(Font*, char*, int);
|
|
|
473 |
extern Point runestringsize(Font*, Rune*);
|
|
|
474 |
extern int runestringwidth(Font*, Rune*);
|
|
|
475 |
extern int runestringnwidth(Font*, Rune*, int);
|
|
|
476 |
extern Point strsubfontwidth(Subfont*, char*);
|
|
|
477 |
extern int loadchar(Font*, Rune, Cacheinfo*, int, int, char**);
|
|
|
478 |
extern char* subfontname(char*, char*, int);
|
|
|
479 |
extern Subfont* _getsubfont(Display*, char*);
|
|
|
480 |
extern Subfont* getdefont(Display*);
|
|
|
481 |
extern void lockdisplay(Display*);
|
|
|
482 |
extern void unlockdisplay(Display*);
|
|
|
483 |
extern int drawlsetrefresh(ulong, int, void*, void*);
|
|
|
484 |
|
|
|
485 |
/*
|
|
|
486 |
* Predefined
|
|
|
487 |
*/
|
|
|
488 |
extern uchar defontdata[];
|
|
|
489 |
extern int sizeofdefont;
|
|
|
490 |
extern Point ZP;
|
|
|
491 |
extern Rectangle ZR;
|
|
|
492 |
|
|
|
493 |
/*
|
|
|
494 |
* Set up by initdraw()
|
|
|
495 |
*/
|
|
|
496 |
extern Display *display;
|
|
|
497 |
extern Font *font;
|
|
|
498 |
/* extern Image *screen; */
|
|
|
499 |
extern Screen *_screen;
|
|
|
500 |
extern int _cursorfd;
|
|
|
501 |
extern int _drawdebug; /* set to 1 to see errors from flushimage */
|
|
|
502 |
extern void _setdrawop(Display*, Drawop);
|
|
|
503 |
|
|
|
504 |
#define BGSHORT(p) (((p)[0]<<0) | ((p)[1]<<8))
|
|
|
505 |
#define BGLONG(p) ((BGSHORT(p)<<0) | (BGSHORT(p+2)<<16))
|
|
|
506 |
#define BPSHORT(p, v) ((p)[0]=(v), (p)[1]=((v)>>8))
|
|
|
507 |
#define BPLONG(p, v) (BPSHORT(p, (v)), BPSHORT(p+2, (v)>>16))
|
|
|
508 |
|
|
|
509 |
/*
|
|
|
510 |
* Compressed image file parameters and helper routines
|
|
|
511 |
*/
|
|
|
512 |
#define NMATCH 3 /* shortest match possible */
|
|
|
513 |
#define NRUN (NMATCH+31) /* longest match possible */
|
|
|
514 |
#define NMEM 1024 /* window size */
|
|
|
515 |
#define NDUMP 128 /* maximum length of dump */
|
|
|
516 |
#define NCBLOCK 6000 /* size of compressed blocks */
|
|
|
517 |
extern void _twiddlecompressed(uchar*, int);
|
|
|
518 |
extern int _compblocksize(Rectangle, int);
|
|
|
519 |
|
|
|
520 |
/* XXX backwards helps; should go */
|
|
|
521 |
extern int log2[];
|
|
|
522 |
extern ulong drawld2chan[];
|
|
|
523 |
extern void drawsetdebug(int);
|