author | kergoth <kergoth> | 2002-01-25 22:14:26 (UTC) |
---|---|---|
committer | kergoth <kergoth> | 2002-01-25 22:14:26 (UTC) |
commit | 15318cad33835e4e2dc620d033e43cd930676cdd (patch) (unidiff) | |
tree | c2fa0399a2c47fda8e2cd0092c73a809d17f68eb /core/multimedia/opieplayer/libflash/graphic24.cc | |
download | opie-15318cad33835e4e2dc620d033e43cd930676cdd.zip opie-15318cad33835e4e2dc620d033e43cd930676cdd.tar.gz opie-15318cad33835e4e2dc620d033e43cd930676cdd.tar.bz2 |
Initial revision
Diffstat (limited to 'core/multimedia/opieplayer/libflash/graphic24.cc') (more/less context) (ignore whitespace changes)
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diff --git a/core/multimedia/opieplayer/libflash/graphic24.cc b/core/multimedia/opieplayer/libflash/graphic24.cc new file mode 100644 index 0000000..6d15019 --- a/dev/null +++ b/core/multimedia/opieplayer/libflash/graphic24.cc | |||
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1 | //////////////////////////////////////////////////////////// | ||
2 | // Flash Plugin and Player | ||
3 | // Copyright (C) 1998 Olivier Debon | ||
4 | // | ||
5 | // This program is free software; you can redistribute it and/or | ||
6 | // modify it under the terms of the GNU General Public License | ||
7 | // as published by the Free Software Foundation; either version 2 | ||
8 | // of the License, or (at your option) any later version. | ||
9 | // | ||
10 | // This program is distributed in the hope that it will be useful, | ||
11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
13 | // GNU General Public License for more details. | ||
14 | // | ||
15 | // You should have received a copy of the GNU General Public License | ||
16 | // along with this program; if not, write to the Free Software | ||
17 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
18 | // | ||
19 | /////////////////////////////////////////////////////////////// | ||
20 | // Author : Olivier Debon <odebon@club-internet.fr> | ||
21 | // | ||
22 | |||
23 | #include "swf.h" | ||
24 | |||
25 | #include "graphic24.h" | ||
26 | |||
27 | extern unsigned char SQRT[]; | ||
28 | |||
29 | #define FULL_AA | ||
30 | |||
31 | #define PRINT 0 | ||
32 | |||
33 | typedef unsigned char TYPE; | ||
34 | #define BPP 3 | ||
35 | |||
36 | GraphicDevice24::GraphicDevice24(FlashDisplay *fd) : GraphicDevice(fd) | ||
37 | { | ||
38 | } | ||
39 | |||
40 | long | ||
41 | GraphicDevice24::allocColor(Color color) | ||
42 | { | ||
43 | return 0; | ||
44 | } | ||
45 | |||
46 | void | ||
47 | GraphicDevice24::clearCanvas() | ||
48 | { | ||
49 | TYPE *point,*p; | ||
50 | long h, w,n; | ||
51 | |||
52 | if (!bgInitialized) return; | ||
53 | |||
54 | point = (TYPE *)(canvasBuffer + clip_rect.ymin * bpl) + clip_rect.xmin*BPP; | ||
55 | w = clip_rect.xmax - clip_rect.xmin; | ||
56 | h = clip_rect.ymax - clip_rect.ymin; | ||
57 | |||
58 | while (h--) { | ||
59 | p = point; | ||
60 | n = w; | ||
61 | while (n--) { | ||
62 | *p++ = backgroundColor.blue; | ||
63 | *p++ = backgroundColor.green; | ||
64 | *p++ = backgroundColor.red; | ||
65 | } | ||
66 | |||
67 | point = (TYPE *)((char *)point + bpl); | ||
68 | } | ||
69 | |||
70 | flashDisplay->flash_refresh = 1; | ||
71 | flashDisplay->clip_x = clip_rect.xmin; | ||
72 | flashDisplay->clip_y = clip_rect.ymin; | ||
73 | flashDisplay->clip_width = clip_rect.xmax-clip_rect.xmin; | ||
74 | flashDisplay->clip_height = clip_rect.ymax-clip_rect.ymin; | ||
75 | } | ||
76 | |||
77 | /* alpha = 0 : select c1, alpha = 255 select c2 */ | ||
78 | static inline void mix_alpha(TYPE *c1, Color c2, int alpha) | ||
79 | { | ||
80 | *c1 = (((c2.blue- (*c1))*alpha + (*c1) * 256) >> 8); | ||
81 | c1++; | ||
82 | *c1 = (((c2.green- (*c1))*alpha + (*c1) * 256) >> 8); | ||
83 | c1++; | ||
84 | *c1 = (((c2.red- (*c1))*alpha + (*c1) * 256) >> 8); | ||
85 | } | ||
86 | |||
87 | void | ||
88 | GraphicDevice24::fillLineAA(FillStyleDef *f, long y, long start, long end) | ||
89 | { | ||
90 | register long n; | ||
91 | TYPE *line; | ||
92 | TYPE *point; | ||
93 | Color pixel; | ||
94 | unsigned int alpha, start_alpha,end_alpha; | ||
95 | |||
96 | if (clip(y,start,end)) return; | ||
97 | |||
98 | line = (TYPE *)(canvasBuffer + bpl*y); | ||
99 | |||
100 | alpha = f->color.alpha; | ||
101 | pixel = f->color; | ||
102 | |||
103 | if (alpha == ALPHA_OPAQUE) { | ||
104 | |||
105 | start_alpha = 255 - ((start & (FRAC-1)) << (8-FRAC_BITS)); | ||
106 | end_alpha = (end & (FRAC-1)) << (8-FRAC_BITS); | ||
107 | |||
108 | start >>= FRAC_BITS; | ||
109 | end >>= FRAC_BITS; | ||
110 | |||
111 | point = &line[start*BPP]; | ||
112 | |||
113 | if (start == end) { | ||
114 | mix_alpha(point, pixel, start_alpha + end_alpha - 255); | ||
115 | } else { | ||
116 | n = end-start; | ||
117 | if (start_alpha < 255) { | ||
118 | mix_alpha(point, pixel, start_alpha); | ||
119 | point += BPP; | ||
120 | n--; | ||
121 | } | ||
122 | while (n > 0) { | ||
123 | *point++ = pixel.blue; | ||
124 | *point++ = pixel.green; | ||
125 | *point++ = pixel.red; | ||
126 | n--; | ||
127 | } | ||
128 | if (end_alpha > 0) { | ||
129 | mix_alpha(point, pixel, end_alpha); | ||
130 | } | ||
131 | } | ||
132 | } else { | ||
133 | |||
134 | start_alpha = 255 - ((start & (FRAC-1)) << (8-FRAC_BITS)); | ||
135 | end_alpha = (end & (FRAC-1)) << (8-FRAC_BITS); | ||
136 | |||
137 | start >>= FRAC_BITS; | ||
138 | end >>= FRAC_BITS; | ||
139 | |||
140 | point = &line[start*BPP]; | ||
141 | |||
142 | if (start == end) { | ||
143 | mix_alpha(point, pixel, ((start_alpha + end_alpha - 255) * alpha) >> 8); | ||
144 | } else { | ||
145 | n = end-start; | ||
146 | if (start_alpha < 255) { | ||
147 | mix_alpha(point, pixel, (start_alpha * alpha) >> 8); | ||
148 | point+=BPP; | ||
149 | n--; | ||
150 | } | ||
151 | while (n > 0) { | ||
152 | mix_alpha(point, pixel, alpha); | ||
153 | point+=BPP; | ||
154 | n--; | ||
155 | } | ||
156 | if (end_alpha > 0) { | ||
157 | mix_alpha(point, pixel, (end_alpha * alpha) >> 8); | ||
158 | } | ||
159 | } | ||
160 | } | ||
161 | } | ||
162 | |||
163 | void | ||
164 | GraphicDevice24::fillLine(FillStyleDef *f, long y, long start, long end) | ||
165 | { | ||
166 | register long n; | ||
167 | TYPE *line,*point; | ||
168 | Color pixel; | ||
169 | unsigned int alpha; | ||
170 | |||
171 | if (clip(y,start,end)) return; | ||
172 | |||
173 | start >>= FRAC_BITS; | ||
174 | end >>= FRAC_BITS; | ||
175 | |||
176 | line = (TYPE *)(canvasBuffer + bpl*y); | ||
177 | point = &line[start*BPP]; | ||
178 | n = end-start; | ||
179 | alpha = f->color.alpha; | ||
180 | pixel = f->color; | ||
181 | if (alpha == ALPHA_OPAQUE) { | ||
182 | while (n--) { | ||
183 | *point++ = pixel.blue; | ||
184 | *point++ = pixel.green; | ||
185 | *point++ = pixel.red; | ||
186 | } | ||
187 | } else { | ||
188 | while (n--) { | ||
189 | mix_alpha(point, pixel, alpha); | ||
190 | point+=BPP; | ||
191 | } | ||
192 | } | ||
193 | } | ||
194 | |||
195 | void | ||
196 | GraphicDevice24::fillLineBitmap(FillStyleDef *f, long y, long start, long end) | ||
197 | { | ||
198 | int n; | ||
199 | long x1,y1,dx,dy; | ||
200 | Matrix *m = &f->bitmap_matrix; | ||
201 | Bitmap *b = f->bitmap; | ||
202 | unsigned char *pixels; | ||
203 | TYPE *p; | ||
204 | Color *cmap; | ||
205 | long pixbpl; | ||
206 | Color pixel; | ||
207 | int offset; | ||
208 | unsigned char *alpha_table; | ||
209 | |||
210 | /* safety test) */ | ||
211 | if (!b) return; | ||
212 | |||
213 | if (clip(y,start,end)) return; | ||
214 | |||
215 | start /= FRAC; | ||
216 | end /= FRAC; | ||
217 | n = end - start; | ||
218 | p = (TYPE *) (canvasBuffer + bpl*y + start*BPP); | ||
219 | |||
220 | x1 = (long) (m->a * start + m->b * y + m->tx); | ||
221 | y1 = (long) (m->c * start + m->d * y + m->ty); | ||
222 | dx = (long) (m->a); | ||
223 | dy = (long) (m->c); | ||
224 | |||
225 | pixels = b->pixels; | ||
226 | pixbpl = b->bpl; | ||
227 | cmap = f->cmap; | ||
228 | |||
229 | if (b->alpha_buf == NULL) { | ||
230 | while (n) { | ||
231 | if (x1 >= 0 && y1 >= 0 && | ||
232 | (x1 >> 16) < b->width && (y1 >> 16) < b->height) { | ||
233 | |||
234 | pixel = cmap[pixels[(y1 >> 16) * pixbpl + (x1 >> 16)]]; | ||
235 | *p++ = pixel.blue; | ||
236 | *p++ = pixel.green; | ||
237 | *p++ = pixel.red; | ||
238 | } else { | ||
239 | p+=BPP; | ||
240 | } | ||
241 | x1 += dx; | ||
242 | y1 += dy; | ||
243 | n--; | ||
244 | } | ||
245 | } else if (f->alpha_table) { | ||
246 | alpha_table = f->alpha_table; | ||
247 | while (n) { | ||
248 | if (x1 >= 0 && y1 >= 0 && | ||
249 | (x1 >> 16) < b->width && (y1 >> 16) < b->height) { | ||
250 | |||
251 | offset = (y1 >> 16) * pixbpl + (x1 >> 16); | ||
252 | mix_alpha(p, cmap[pixels[offset]], alpha_table[b->alpha_buf[offset]]); | ||
253 | } | ||
254 | p+=BPP; | ||
255 | x1 += dx; | ||
256 | y1 += dy; | ||
257 | n--; | ||
258 | } | ||
259 | } else { | ||
260 | while (n) { | ||
261 | if (x1 >= 0 && y1 >= 0 && | ||
262 | (x1 >> 16) < b->width && (y1 >> 16) < b->height) { | ||
263 | |||
264 | offset = (y1 >> 16) * pixbpl + (x1 >> 16); | ||
265 | mix_alpha(p, cmap[pixels[offset]], b->alpha_buf[offset]); | ||
266 | } | ||
267 | p+=BPP; | ||
268 | x1 += dx; | ||
269 | y1 += dy; | ||
270 | n--; | ||
271 | } | ||
272 | } | ||
273 | } | ||
274 | |||
275 | void | ||
276 | GraphicDevice24::fillLineLG(Gradient *grad, long y, long start, long end) | ||
277 | { | ||
278 | long dr,r,v,r2; | ||
279 | register long n; | ||
280 | TYPE *line; | ||
281 | TYPE *point; | ||
282 | Color *cp,*ramp; | ||
283 | Matrix *m = &grad->imat; | ||
284 | unsigned int start_alpha,end_alpha; | ||
285 | |||
286 | if (clip(y,start,end)) return; | ||
287 | |||
288 | start_alpha = 255 - ((start & (FRAC-1)) << (8-FRAC_BITS)); | ||
289 | end_alpha = (end & (FRAC-1)) << (8-FRAC_BITS); | ||
290 | |||
291 | start /= FRAC; | ||
292 | end /= FRAC; | ||
293 | |||
294 | n = end-start; | ||
295 | |||
296 | r = (long) (m->a * start + m->b * y + m->tx); | ||
297 | dr = (long) (m->a); | ||
298 | |||
299 | ramp = grad->ramp; | ||
300 | |||
301 | line = (TYPE *)(canvasBuffer + bpl*y); | ||
302 | point = &line[start*BPP]; | ||
303 | |||
304 | r2 = r + n * dr; | ||
305 | if ( ((r | r2) & ~255) == 0 ) { | ||
306 | if (!grad->has_alpha) { | ||
307 | #ifdef FULL_AA | ||
308 | if (start_alpha < 255) { | ||
309 | v = r>>16; | ||
310 | mix_alpha(point, ramp[v], start_alpha); | ||
311 | point+=BPP; | ||
312 | r += dr; | ||
313 | n--; | ||
314 | } | ||
315 | #endif /* FULL_AA */ | ||
316 | while (n>0) { | ||
317 | v = r>>16; | ||
318 | *point++ = ramp[v].blue; | ||
319 | *point++ = ramp[v].green; | ||
320 | *point++ = ramp[v].red; | ||
321 | r += dr; | ||
322 | n--; | ||
323 | } | ||
324 | #ifdef FULL_AA | ||
325 | if (end_alpha > 0) { | ||
326 | v = r>>16; | ||
327 | mix_alpha(point, ramp[v], end_alpha); | ||
328 | } | ||
329 | #endif /* FULL_AA */ | ||
330 | } else { | ||
331 | while (n--) { | ||
332 | v = r>>16; | ||
333 | cp = &ramp[v]; | ||
334 | mix_alpha(point, *cp, cp->alpha); | ||
335 | point+=BPP; | ||
336 | r += dr; | ||
337 | } | ||
338 | } | ||
339 | } else { | ||
340 | if (!grad->has_alpha) { | ||
341 | #ifdef FULL_AA | ||
342 | if (start_alpha < 255) { | ||
343 | v = r>>16; | ||
344 | if (v < 0) v = 0; | ||
345 | else if (v > 255) v = 255; | ||
346 | mix_alpha(point, ramp[v], start_alpha); | ||
347 | point+=BPP; | ||
348 | r += dr; | ||
349 | n--; | ||
350 | } | ||
351 | #endif /* FULL_AA */ | ||
352 | while (n>0) { | ||
353 | v = r>>16; | ||
354 | if (v < 0) v = 0; | ||
355 | else if (v > 255) v = 255; | ||
356 | *point++ = ramp[v].blue; | ||
357 | *point++ = ramp[v].green; | ||
358 | *point++ = ramp[v].red; | ||
359 | r += dr; | ||
360 | n--; | ||
361 | } | ||
362 | #ifdef FULL_AA | ||
363 | if (end_alpha > 0) { | ||
364 | v = r>>16; | ||
365 | if (v < 0) v = 0; | ||
366 | else if (v > 255) v = 255; | ||
367 | mix_alpha(point, ramp[v], end_alpha); | ||
368 | } | ||
369 | #endif /* FULL_AA */ | ||
370 | } else { | ||
371 | while (n--) { | ||
372 | v = r>>16; | ||
373 | if (v < 0) v = 0; | ||
374 | else if (v > 255) v = 255; | ||
375 | cp = &ramp[v]; | ||
376 | mix_alpha(point, *cp, cp->alpha); | ||
377 | point+=BPP; | ||
378 | r += dr; | ||
379 | } | ||
380 | } | ||
381 | } | ||
382 | } | ||
383 | |||
384 | void | ||
385 | GraphicDevice24::fillLineRG(Gradient *grad, long y, long start, long end) | ||
386 | { | ||
387 | long X,dx,r,Y,dy; | ||
388 | long dist2; | ||
389 | register long n; | ||
390 | Color *cp,*ramp; | ||
391 | TYPE *line; | ||
392 | TYPE *point; | ||
393 | Matrix *m = &grad->imat; | ||
394 | unsigned int start_alpha,end_alpha; | ||
395 | |||
396 | if (clip(y,start,end)) return; | ||
397 | |||
398 | start_alpha = 255 - ((start & (FRAC-1)) << (8-FRAC_BITS)); | ||
399 | end_alpha = (end & (FRAC-1)) << (8-FRAC_BITS); | ||
400 | |||
401 | start /= FRAC; | ||
402 | end /= FRAC; | ||
403 | |||
404 | n = end-start; | ||
405 | |||
406 | X = (long) (m->a * start + m->b * y + m->tx); | ||
407 | Y = (long) (m->c * start + m->d * y + m->ty); | ||
408 | dx = (long) (m->a); | ||
409 | dy = (long) (m->c); | ||
410 | |||
411 | ramp = grad->ramp; | ||
412 | |||
413 | line = (TYPE *)(canvasBuffer + bpl*y); | ||
414 | point = &line[start*BPP]; | ||
415 | |||
416 | if (!grad->has_alpha) { | ||
417 | #ifdef FULL_AA | ||
418 | if (start == end) { | ||
419 | dist2 = ((X>>16)*(X>>16))+((Y>>16)*(Y>>16)); | ||
420 | if ((unsigned long)dist2 >= 65536) { | ||
421 | r = 255; | ||
422 | } else { | ||
423 | r= SQRT[dist2]; | ||
424 | } | ||
425 | mix_alpha(point, ramp[r], start_alpha + end_alpha - 255); | ||
426 | } else { | ||
427 | if (start_alpha < 255) { | ||
428 | dist2 = ((X>>16)*(X>>16))+((Y>>16)*(Y>>16)); | ||
429 | if ((unsigned long)dist2 >= 65536) { | ||
430 | r = 255; | ||
431 | } else { | ||
432 | r= SQRT[dist2]; | ||
433 | } | ||
434 | mix_alpha(point, ramp[r], start_alpha); | ||
435 | point+=BPP; | ||
436 | X += dx; | ||
437 | Y += dy; | ||
438 | n--; | ||
439 | } | ||
440 | #endif /* FULL_AA */ | ||
441 | while (n>0) { | ||
442 | dist2 = ((X>>16)*(X>>16))+((Y>>16)*(Y>>16)); | ||
443 | if ((unsigned long)dist2 >= 65536) { | ||
444 | r = 255; | ||
445 | } else { | ||
446 | r= SQRT[dist2]; | ||
447 | } | ||
448 | *point++ = ramp[r].blue; | ||
449 | *point++ = ramp[r].green; | ||
450 | *point++ = ramp[r].red; | ||
451 | X += dx; | ||
452 | Y += dy; | ||
453 | n--; | ||
454 | } | ||
455 | #ifdef FULL_AA | ||
456 | if (end_alpha > 0) { | ||
457 | dist2 = ((X>>16)*(X>>16))+((Y>>16)*(Y>>16)); | ||
458 | if ((unsigned long)dist2 >= 65536) { | ||
459 | r = 255; | ||
460 | } else { | ||
461 | r= SQRT[dist2]; | ||
462 | } | ||
463 | mix_alpha(point, ramp[r], end_alpha); | ||
464 | } | ||
465 | } | ||
466 | #endif /* FULL_AA */ | ||
467 | |||
468 | } else { | ||
469 | while (n--) { | ||
470 | dist2 = ((X>>16)*(X>>16))+((Y>>16)*(Y>>16)); | ||
471 | if ((unsigned long)dist2 >= 65536) { | ||
472 | r = 255; | ||
473 | } else { | ||
474 | r= SQRT[dist2]; | ||
475 | } | ||
476 | cp = &ramp[r]; | ||
477 | mix_alpha(point, *cp, cp->alpha); | ||
478 | point+=BPP; | ||
479 | X += dx; | ||
480 | Y += dy; | ||
481 | } | ||
482 | } | ||
483 | } | ||
484 | |||
485 | void | ||
486 | GraphicDevice24::drawLine(long x1, long y1, long x2, long y2, long width) | ||
487 | { | ||
488 | int n,adr,dx,dy,sx; | ||
489 | Color color; | ||
490 | register int a; | ||
491 | register TYPE *pp; | ||
492 | int alpha; | ||
493 | |||
494 | x1 = (x1) >> FRAC_BITS; | ||
495 | y1 = (y1) >> FRAC_BITS; | ||
496 | x2 = (x2) >> FRAC_BITS; | ||
497 | y2 = (y2) >> FRAC_BITS; | ||
498 | |||
499 | if (y1 > y2 || (y1 == y2 && x1 > x2)) { | ||
500 | long tmp; | ||
501 | |||
502 | tmp=x1; | ||
503 | x1=x2; | ||
504 | x2=tmp; | ||
505 | |||
506 | tmp=y1; | ||
507 | y1=y2; | ||
508 | y2=tmp; | ||
509 | } | ||
510 | |||
511 | if (y1 == y2 && (y1 < clip_rect.ymin || y1 > clip_rect.ymax)) return; | ||
512 | if (x1 == x2 && (x1 < clip_rect.xmin || x1 > clip_rect.xmax)) return; | ||
513 | if (x1 == x2 && y1 == y2) return;// Bad !!! | ||
514 | |||
515 | if (y1 < clip_rect.ymin && y1 != y2) { | ||
516 | x1 += (x2-x1)*(clip_rect.ymin-y1)/(y2-y1); | ||
517 | y1 = clip_rect.ymin; | ||
518 | } | ||
519 | |||
520 | if (y2 > clip_rect.ymax && y1 != y2) { | ||
521 | x2 -= (x2-x1)*(y2-clip_rect.ymax)/(y2-y1); | ||
522 | y2 = clip_rect.ymax; | ||
523 | } | ||
524 | |||
525 | if (x1 < x2) { | ||
526 | if (x1 < clip_rect.xmin && x1 != x2) { | ||
527 | y1 += (y2-y1)*(clip_rect.xmin-x1)/(x2-x1); | ||
528 | x1 = clip_rect.xmin; | ||
529 | } | ||
530 | |||
531 | if (x2 > clip_rect.xmax && x1 != x2) { | ||
532 | y2 -= (y2-y1)*(x2-clip_rect.xmax)/(x2-x1); | ||
533 | x2 = clip_rect.xmax; | ||
534 | } | ||
535 | } | ||
536 | |||
537 | if (x1 > x2) { | ||
538 | if (x2 < clip_rect.xmin && x2 != x1) { | ||
539 | y2 -= (y2-y1)*(clip_rect.xmin-x2)/(x1-x2); | ||
540 | x2 = clip_rect.xmin; | ||
541 | } | ||
542 | |||
543 | if (x1 > clip_rect.xmax && x2 != x1) { | ||
544 | y1 += (y2-y1)*(x1-clip_rect.xmax)/(x1-x2); | ||
545 | x1 = clip_rect.xmax; | ||
546 | } | ||
547 | } | ||
548 | |||
549 | // Check again | ||
550 | if (x1 == x2 && y1 == y2) return; | ||
551 | if (x1 < clip_rect.xmin || x2 < clip_rect.xmin) return; | ||
552 | if (y1 < clip_rect.ymin || y2 < clip_rect.ymin) return; | ||
553 | if (x1 > clip_rect.xmax || x2 > clip_rect.xmax) return; | ||
554 | if (y1 > clip_rect.ymax || y2 > clip_rect.ymax) return; | ||
555 | |||
556 | sx=bpl >> 1; | ||
557 | adr=(y1 * sx + x1); | ||
558 | pp = (TYPE *)canvasBuffer + adr; | ||
559 | |||
560 | dx = x2 - x1; | ||
561 | dy = y2 - y1; | ||
562 | |||
563 | color = foregroundColor; | ||
564 | alpha = foregroundColor.alpha; | ||
565 | |||
566 | if (alpha == ALPHA_OPAQUE) { | ||
567 | |||
568 | #define PUTPIXEL() \ | ||
569 | { \ | ||
570 | *pp++=color.red; \ | ||
571 | *pp++=color.green; \ | ||
572 | *pp++=color.blue; \ | ||
573 | } | ||
574 | |||
575 | #define DRAWLINE(dx,dy,inc_1,inc_2) \ | ||
576 | n=dx;\ | ||
577 | a=2*dy-dx;\ | ||
578 | dy=2*dy;\ | ||
579 | dx=2*dx-dy;\ | ||
580 | do {\ | ||
581 | PUTPIXEL();\ | ||
582 | if (a>0) { pp+=(inc_1); a-=dx; }\ | ||
583 | else { pp+=(inc_2); a+=dy; }\ | ||
584 | } while (--n >= 0); | ||
585 | |||
586 | /* fin macro */ | ||
587 | |||
588 | if (dx == 0 && dy == 0) { | ||
589 | PUTPIXEL(); | ||
590 | } else if (dx > 0) { | ||
591 | if (dx >= dy) { | ||
592 | DRAWLINE(dx, dy, sx + 1, 1); | ||
593 | } else { | ||
594 | DRAWLINE(dy, dx, sx + 1, sx); | ||
595 | } | ||
596 | } else { | ||
597 | dx = -dx; | ||
598 | if (dx >= dy) { | ||
599 | DRAWLINE(dx, dy, sx - 1, -1); | ||
600 | } else { | ||
601 | DRAWLINE(dy, dx, sx - 1, sx); | ||
602 | } | ||
603 | } | ||
604 | |||
605 | |||
606 | #undef DRAWLINE | ||
607 | #undef PUTPIXEL | ||
608 | } else { | ||
609 | #define PUTPIXEL() \ | ||
610 | { \ | ||
611 | mix_alpha(pp,color,alpha); \ | ||
612 | } | ||
613 | |||
614 | #define DRAWLINE(dx,dy,inc_1,inc_2) \ | ||
615 | n=dx;\ | ||
616 | a=2*dy-dx;\ | ||
617 | dy=2*dy;\ | ||
618 | dx=2*dx-dy;\ | ||
619 | do {\ | ||
620 | PUTPIXEL();\ | ||
621 | if (a>0) { pp+=(inc_1*BPP); a-=dx; }\ | ||
622 | else { pp+=(inc_2*BPP); a+=dy; }\ | ||
623 | } while (--n >= 0); | ||
624 | |||
625 | /* fin macro */ | ||
626 | |||
627 | if (dx == 0 && dy == 0) { | ||
628 | PUTPIXEL(); | ||
629 | } else if (dx > 0) { | ||
630 | if (dx >= dy) { | ||
631 | DRAWLINE(dx, dy, sx + 1, 1); | ||
632 | } else { | ||
633 | DRAWLINE(dy, dx, sx + 1, sx); | ||
634 | } | ||
635 | } else { | ||
636 | dx = -dx; | ||
637 | if (dx >= dy) { | ||
638 | DRAWLINE(dx, dy, sx - 1, -1); | ||
639 | } else { | ||
640 | DRAWLINE(dy, dx, sx - 1, sx); | ||
641 | } | ||
642 | } | ||
643 | |||
644 | |||
645 | #undef DRAWLINE | ||
646 | #undef PUTPIXEL | ||
647 | } | ||
648 | } | ||