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a09e091a JB |
1 | /* |
2 | * | |
3 | * Copyright © 1999 Keith Packard | |
4 | * | |
5 | * Permission to use, copy, modify, distribute, and sell this software and its | |
6 | * documentation for any purpose is hereby granted without fee, provided that | |
7 | * the above copyright notice appear in all copies and that both that | |
8 | * copyright notice and this permission notice appear in supporting | |
9 | * documentation, and that the name of Keith Packard not be used in | |
10 | * advertising or publicity pertaining to distribution of the software without | |
11 | * specific, written prior permission. Keith Packard makes no | |
12 | * representations about the suitability of this software for any purpose. It | |
13 | * is provided "as is" without express or implied warranty. | |
14 | * | |
15 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
16 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
17 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
18 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
19 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
20 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR | |
21 | * PERFORMANCE OF THIS SOFTWARE. | |
22 | */ | |
23 | ||
24 | #ifdef HAVE_DIX_CONFIG_H | |
25 | #include <dix-config.h> | |
26 | #endif | |
27 | ||
28 | #include "scrnintstr.h" | |
29 | #include "gcstruct.h" | |
30 | #include "pixmapstr.h" | |
31 | #include "windowstr.h" | |
32 | #include "mi.h" | |
33 | #include "picturestr.h" | |
34 | #include "mipict.h" | |
35 | ||
36 | int | |
37 | miCreatePicture(PicturePtr pPicture) | |
38 | { | |
39 | return Success; | |
40 | } | |
41 | ||
42 | void | |
43 | miDestroyPicture(PicturePtr pPicture) | |
44 | { | |
45 | if (pPicture->freeCompClip) | |
46 | RegionDestroy(pPicture->pCompositeClip); | |
47 | } | |
48 | ||
49 | void | |
50 | miDestroyPictureClip(PicturePtr pPicture) | |
51 | { | |
52 | switch (pPicture->clientClipType) { | |
53 | case CT_NONE: | |
54 | return; | |
55 | case CT_PIXMAP: | |
56 | (*pPicture->pDrawable->pScreen-> | |
57 | DestroyPixmap) ((PixmapPtr) (pPicture->clientClip)); | |
58 | break; | |
59 | default: | |
60 | /* | |
61 | * we know we'll never have a list of rectangles, since ChangeClip | |
62 | * immediately turns them into a region | |
63 | */ | |
64 | RegionDestroy(pPicture->clientClip); | |
65 | break; | |
66 | } | |
67 | pPicture->clientClip = NULL; | |
68 | pPicture->clientClipType = CT_NONE; | |
69 | } | |
70 | ||
71 | int | |
72 | miChangePictureClip(PicturePtr pPicture, int type, pointer value, int n) | |
73 | { | |
74 | ScreenPtr pScreen = pPicture->pDrawable->pScreen; | |
75 | PictureScreenPtr ps = GetPictureScreen(pScreen); | |
76 | pointer clientClip; | |
77 | int clientClipType; | |
78 | ||
79 | switch (type) { | |
80 | case CT_PIXMAP: | |
81 | /* convert the pixmap to a region */ | |
82 | clientClip = (pointer) BitmapToRegion(pScreen, (PixmapPtr) value); | |
83 | if (!clientClip) | |
84 | return BadAlloc; | |
85 | clientClipType = CT_REGION; | |
86 | (*pScreen->DestroyPixmap) ((PixmapPtr) value); | |
87 | break; | |
88 | case CT_REGION: | |
89 | clientClip = value; | |
90 | clientClipType = CT_REGION; | |
91 | break; | |
92 | case CT_NONE: | |
93 | clientClip = 0; | |
94 | clientClipType = CT_NONE; | |
95 | break; | |
96 | default: | |
97 | clientClip = (pointer) RegionFromRects(n, (xRectangle *) value, type); | |
98 | if (!clientClip) | |
99 | return BadAlloc; | |
100 | clientClipType = CT_REGION; | |
101 | free(value); | |
102 | break; | |
103 | } | |
104 | (*ps->DestroyPictureClip) (pPicture); | |
105 | pPicture->clientClip = clientClip; | |
106 | pPicture->clientClipType = clientClipType; | |
107 | pPicture->stateChanges |= CPClipMask; | |
108 | return Success; | |
109 | } | |
110 | ||
111 | void | |
112 | miChangePicture(PicturePtr pPicture, Mask mask) | |
113 | { | |
114 | return; | |
115 | } | |
116 | ||
117 | void | |
118 | miValidatePicture(PicturePtr pPicture, Mask mask) | |
119 | { | |
120 | DrawablePtr pDrawable = pPicture->pDrawable; | |
121 | ||
122 | if ((mask & (CPClipXOrigin | CPClipYOrigin | CPClipMask | CPSubwindowMode)) | |
123 | || (pDrawable->serialNumber != | |
124 | (pPicture->serialNumber & DRAWABLE_SERIAL_BITS))) { | |
125 | if (pDrawable->type == DRAWABLE_WINDOW) { | |
126 | WindowPtr pWin = (WindowPtr) pDrawable; | |
127 | RegionPtr pregWin; | |
128 | Bool freeTmpClip, freeCompClip; | |
129 | ||
130 | if (pPicture->subWindowMode == IncludeInferiors) { | |
131 | pregWin = NotClippedByChildren(pWin); | |
132 | freeTmpClip = TRUE; | |
133 | } | |
134 | else { | |
135 | pregWin = &pWin->clipList; | |
136 | freeTmpClip = FALSE; | |
137 | } | |
138 | freeCompClip = pPicture->freeCompClip; | |
139 | ||
140 | /* | |
141 | * if there is no client clip, we can get by with just keeping the | |
142 | * pointer we got, and remembering whether or not should destroy | |
143 | * (or maybe re-use) it later. this way, we avoid unnecessary | |
144 | * copying of regions. (this wins especially if many clients clip | |
145 | * by children and have no client clip.) | |
146 | */ | |
147 | if (pPicture->clientClipType == CT_NONE) { | |
148 | if (freeCompClip) | |
149 | RegionDestroy(pPicture->pCompositeClip); | |
150 | pPicture->pCompositeClip = pregWin; | |
151 | pPicture->freeCompClip = freeTmpClip; | |
152 | } | |
153 | else { | |
154 | /* | |
155 | * we need one 'real' region to put into the composite clip. if | |
156 | * pregWin the current composite clip are real, we can get rid of | |
157 | * one. if pregWin is real and the current composite clip isn't, | |
158 | * use pregWin for the composite clip. if the current composite | |
159 | * clip is real and pregWin isn't, use the current composite | |
160 | * clip. if neither is real, create a new region. | |
161 | */ | |
162 | ||
163 | RegionTranslate(pPicture->clientClip, | |
164 | pDrawable->x + pPicture->clipOrigin.x, | |
165 | pDrawable->y + pPicture->clipOrigin.y); | |
166 | ||
167 | if (freeCompClip) { | |
168 | RegionIntersect(pPicture->pCompositeClip, | |
169 | pregWin, pPicture->clientClip); | |
170 | if (freeTmpClip) | |
171 | RegionDestroy(pregWin); | |
172 | } | |
173 | else if (freeTmpClip) { | |
174 | RegionIntersect(pregWin, pregWin, pPicture->clientClip); | |
175 | pPicture->pCompositeClip = pregWin; | |
176 | } | |
177 | else { | |
178 | pPicture->pCompositeClip = RegionCreate(NullBox, 0); | |
179 | RegionIntersect(pPicture->pCompositeClip, | |
180 | pregWin, pPicture->clientClip); | |
181 | } | |
182 | pPicture->freeCompClip = TRUE; | |
183 | RegionTranslate(pPicture->clientClip, | |
184 | -(pDrawable->x + pPicture->clipOrigin.x), | |
185 | -(pDrawable->y + pPicture->clipOrigin.y)); | |
186 | } | |
187 | } /* end of composite clip for a window */ | |
188 | else { | |
189 | BoxRec pixbounds; | |
190 | ||
191 | /* XXX should we translate by drawable.x/y here ? */ | |
192 | /* If you want pixmaps in offscreen memory, yes */ | |
193 | pixbounds.x1 = pDrawable->x; | |
194 | pixbounds.y1 = pDrawable->y; | |
195 | pixbounds.x2 = pDrawable->x + pDrawable->width; | |
196 | pixbounds.y2 = pDrawable->y + pDrawable->height; | |
197 | ||
198 | if (pPicture->freeCompClip) { | |
199 | RegionReset(pPicture->pCompositeClip, &pixbounds); | |
200 | } | |
201 | else { | |
202 | pPicture->freeCompClip = TRUE; | |
203 | pPicture->pCompositeClip = RegionCreate(&pixbounds, 1); | |
204 | } | |
205 | ||
206 | if (pPicture->clientClipType == CT_REGION) { | |
207 | if (pDrawable->x || pDrawable->y) { | |
208 | RegionTranslate(pPicture->clientClip, | |
209 | pDrawable->x + pPicture->clipOrigin.x, | |
210 | pDrawable->y + pPicture->clipOrigin.y); | |
211 | RegionIntersect(pPicture->pCompositeClip, | |
212 | pPicture->pCompositeClip, | |
213 | pPicture->clientClip); | |
214 | RegionTranslate(pPicture->clientClip, | |
215 | -(pDrawable->x + pPicture->clipOrigin.x), | |
216 | -(pDrawable->y + pPicture->clipOrigin.y)); | |
217 | } | |
218 | else { | |
219 | RegionTranslate(pPicture->pCompositeClip, | |
220 | -pPicture->clipOrigin.x, | |
221 | -pPicture->clipOrigin.y); | |
222 | RegionIntersect(pPicture->pCompositeClip, | |
223 | pPicture->pCompositeClip, | |
224 | pPicture->clientClip); | |
225 | RegionTranslate(pPicture->pCompositeClip, | |
226 | pPicture->clipOrigin.x, | |
227 | pPicture->clipOrigin.y); | |
228 | } | |
229 | } | |
230 | } /* end of composite clip for pixmap */ | |
231 | } | |
232 | } | |
233 | ||
234 | int | |
235 | miChangePictureTransform(PicturePtr pPicture, PictTransform * transform) | |
236 | { | |
237 | return Success; | |
238 | } | |
239 | ||
240 | int | |
241 | miChangePictureFilter(PicturePtr pPicture, | |
242 | int filter, xFixed * params, int nparams) | |
243 | { | |
244 | return Success; | |
245 | } | |
246 | ||
247 | #define BOUND(v) (INT16) ((v) < MINSHORT ? MINSHORT : (v) > MAXSHORT ? MAXSHORT : (v)) | |
248 | ||
249 | static inline pixman_bool_t | |
250 | miClipPictureReg(pixman_region16_t * pRegion, | |
251 | pixman_region16_t * pClip, int dx, int dy) | |
252 | { | |
253 | if (pixman_region_n_rects(pRegion) == 1 && | |
254 | pixman_region_n_rects(pClip) == 1) { | |
255 | pixman_box16_t *pRbox = pixman_region_rectangles(pRegion, NULL); | |
256 | pixman_box16_t *pCbox = pixman_region_rectangles(pClip, NULL); | |
257 | int v; | |
258 | ||
259 | if (pRbox->x1 < (v = pCbox->x1 + dx)) | |
260 | pRbox->x1 = BOUND(v); | |
261 | if (pRbox->x2 > (v = pCbox->x2 + dx)) | |
262 | pRbox->x2 = BOUND(v); | |
263 | if (pRbox->y1 < (v = pCbox->y1 + dy)) | |
264 | pRbox->y1 = BOUND(v); | |
265 | if (pRbox->y2 > (v = pCbox->y2 + dy)) | |
266 | pRbox->y2 = BOUND(v); | |
267 | if (pRbox->x1 >= pRbox->x2 || pRbox->y1 >= pRbox->y2) { | |
268 | pixman_region_init(pRegion); | |
269 | } | |
270 | } | |
271 | else if (!pixman_region_not_empty(pClip)) | |
272 | return FALSE; | |
273 | else { | |
274 | if (dx || dy) | |
275 | pixman_region_translate(pRegion, -dx, -dy); | |
276 | if (!pixman_region_intersect(pRegion, pRegion, pClip)) | |
277 | return FALSE; | |
278 | if (dx || dy) | |
279 | pixman_region_translate(pRegion, dx, dy); | |
280 | } | |
281 | return pixman_region_not_empty(pRegion); | |
282 | } | |
283 | ||
284 | static inline Bool | |
285 | miClipPictureSrc(RegionPtr pRegion, PicturePtr pPicture, int dx, int dy) | |
286 | { | |
287 | if (pPicture->clientClipType != CT_NONE) { | |
288 | Bool result; | |
289 | ||
290 | pixman_region_translate(pPicture->clientClip, | |
291 | pPicture->clipOrigin.x + dx, | |
292 | pPicture->clipOrigin.y + dy); | |
293 | ||
294 | result = RegionIntersect(pRegion, pRegion, pPicture->clientClip); | |
295 | ||
296 | pixman_region_translate(pPicture->clientClip, | |
297 | -(pPicture->clipOrigin.x + dx), | |
298 | -(pPicture->clipOrigin.y + dy)); | |
299 | ||
300 | if (!result) | |
301 | return FALSE; | |
302 | } | |
303 | return TRUE; | |
304 | } | |
305 | ||
306 | static void | |
307 | SourceValidateOnePicture(PicturePtr pPicture) | |
308 | { | |
309 | DrawablePtr pDrawable = pPicture->pDrawable; | |
310 | ScreenPtr pScreen; | |
311 | ||
312 | if (!pDrawable) | |
313 | return; | |
314 | ||
315 | pScreen = pDrawable->pScreen; | |
316 | ||
317 | if (pScreen->SourceValidate) { | |
318 | pScreen->SourceValidate(pDrawable, 0, 0, pDrawable->width, | |
319 | pDrawable->height, pPicture->subWindowMode); | |
320 | } | |
321 | } | |
322 | ||
323 | void | |
324 | miCompositeSourceValidate(PicturePtr pPicture) | |
325 | { | |
326 | SourceValidateOnePicture(pPicture); | |
327 | if (pPicture->alphaMap) | |
328 | SourceValidateOnePicture(pPicture->alphaMap); | |
329 | } | |
330 | ||
331 | /* | |
332 | * returns FALSE if the final region is empty. Indistinguishable from | |
333 | * an allocation failure, but rendering ignores those anyways. | |
334 | */ | |
335 | ||
336 | Bool | |
337 | miComputeCompositeRegion(RegionPtr pRegion, | |
338 | PicturePtr pSrc, | |
339 | PicturePtr pMask, | |
340 | PicturePtr pDst, | |
341 | INT16 xSrc, | |
342 | INT16 ySrc, | |
343 | INT16 xMask, | |
344 | INT16 yMask, | |
345 | INT16 xDst, INT16 yDst, CARD16 width, CARD16 height) | |
346 | { | |
347 | ||
348 | int v; | |
349 | ||
350 | pRegion->extents.x1 = xDst; | |
351 | v = xDst + width; | |
352 | pRegion->extents.x2 = BOUND(v); | |
353 | pRegion->extents.y1 = yDst; | |
354 | v = yDst + height; | |
355 | pRegion->extents.y2 = BOUND(v); | |
356 | pRegion->data = 0; | |
357 | /* Check for empty operation */ | |
358 | if (pRegion->extents.x1 >= pRegion->extents.x2 || | |
359 | pRegion->extents.y1 >= pRegion->extents.y2) { | |
360 | pixman_region_init(pRegion); | |
361 | return FALSE; | |
362 | } | |
363 | /* clip against dst */ | |
364 | if (!miClipPictureReg(pRegion, pDst->pCompositeClip, 0, 0)) { | |
365 | pixman_region_fini(pRegion); | |
366 | return FALSE; | |
367 | } | |
368 | if (pDst->alphaMap) { | |
369 | if (!miClipPictureReg(pRegion, pDst->alphaMap->pCompositeClip, | |
370 | -pDst->alphaOrigin.x, -pDst->alphaOrigin.y)) { | |
371 | pixman_region_fini(pRegion); | |
372 | return FALSE; | |
373 | } | |
374 | } | |
375 | /* clip against src */ | |
376 | if (!miClipPictureSrc(pRegion, pSrc, xDst - xSrc, yDst - ySrc)) { | |
377 | pixman_region_fini(pRegion); | |
378 | return FALSE; | |
379 | } | |
380 | if (pSrc->alphaMap) { | |
381 | if (!miClipPictureSrc(pRegion, pSrc->alphaMap, | |
382 | xDst - (xSrc - pSrc->alphaOrigin.x), | |
383 | yDst - (ySrc - pSrc->alphaOrigin.y))) { | |
384 | pixman_region_fini(pRegion); | |
385 | return FALSE; | |
386 | } | |
387 | } | |
388 | /* clip against mask */ | |
389 | if (pMask) { | |
390 | if (!miClipPictureSrc(pRegion, pMask, xDst - xMask, yDst - yMask)) { | |
391 | pixman_region_fini(pRegion); | |
392 | return FALSE; | |
393 | } | |
394 | if (pMask->alphaMap) { | |
395 | if (!miClipPictureSrc(pRegion, pMask->alphaMap, | |
396 | xDst - (xMask - pMask->alphaOrigin.x), | |
397 | yDst - (yMask - pMask->alphaOrigin.y))) { | |
398 | pixman_region_fini(pRegion); | |
399 | return FALSE; | |
400 | } | |
401 | } | |
402 | } | |
403 | ||
404 | miCompositeSourceValidate(pSrc); | |
405 | if (pMask) | |
406 | miCompositeSourceValidate(pMask); | |
407 | ||
408 | return TRUE; | |
409 | } | |
410 | ||
411 | void | |
412 | miRenderColorToPixel(PictFormatPtr format, xRenderColor * color, CARD32 *pixel) | |
413 | { | |
414 | CARD32 r, g, b, a; | |
415 | miIndexedPtr pIndexed; | |
416 | ||
417 | switch (format->type) { | |
418 | case PictTypeDirect: | |
419 | r = color->red >> (16 - Ones(format->direct.redMask)); | |
420 | g = color->green >> (16 - Ones(format->direct.greenMask)); | |
421 | b = color->blue >> (16 - Ones(format->direct.blueMask)); | |
422 | a = color->alpha >> (16 - Ones(format->direct.alphaMask)); | |
423 | r = r << format->direct.red; | |
424 | g = g << format->direct.green; | |
425 | b = b << format->direct.blue; | |
426 | a = a << format->direct.alpha; | |
427 | *pixel = r | g | b | a; | |
428 | break; | |
429 | case PictTypeIndexed: | |
430 | pIndexed = (miIndexedPtr) (format->index.devPrivate); | |
431 | if (pIndexed->color) { | |
432 | r = color->red >> 11; | |
433 | g = color->green >> 11; | |
434 | b = color->blue >> 11; | |
435 | *pixel = miIndexToEnt15(pIndexed, (r << 10) | (g << 5) | b); | |
436 | } | |
437 | else { | |
438 | r = color->red >> 8; | |
439 | g = color->green >> 8; | |
440 | b = color->blue >> 8; | |
441 | *pixel = miIndexToEntY24(pIndexed, (r << 16) | (g << 8) | b); | |
442 | } | |
443 | break; | |
444 | } | |
445 | } | |
446 | ||
447 | static CARD16 | |
448 | miFillColor(CARD32 pixel, int bits) | |
449 | { | |
450 | while (bits < 16) { | |
451 | pixel |= pixel << bits; | |
452 | bits <<= 1; | |
453 | } | |
454 | return (CARD16) pixel; | |
455 | } | |
456 | ||
457 | Bool | |
458 | miIsSolidAlpha(PicturePtr pSrc) | |
459 | { | |
460 | ScreenPtr pScreen; | |
461 | char line[1]; | |
462 | ||
463 | if (!pSrc->pDrawable) | |
464 | return FALSE; | |
465 | ||
466 | pScreen = pSrc->pDrawable->pScreen; | |
467 | ||
468 | /* Alpha-only */ | |
469 | if (PICT_FORMAT_TYPE(pSrc->format) != PICT_TYPE_A) | |
470 | return FALSE; | |
471 | /* repeat */ | |
472 | if (!pSrc->repeat) | |
473 | return FALSE; | |
474 | /* 1x1 */ | |
475 | if (pSrc->pDrawable->width != 1 || pSrc->pDrawable->height != 1) | |
476 | return FALSE; | |
477 | line[0] = 1; | |
478 | (*pScreen->GetImage) (pSrc->pDrawable, 0, 0, 1, 1, ZPixmap, ~0L, line); | |
479 | switch (pSrc->pDrawable->bitsPerPixel) { | |
480 | case 1: | |
481 | return (CARD8) line[0] == 1 || (CARD8) line[0] == 0x80; | |
482 | case 4: | |
483 | return (CARD8) line[0] == 0xf || (CARD8) line[0] == 0xf0; | |
484 | case 8: | |
485 | return (CARD8) line[0] == 0xff; | |
486 | default: | |
487 | return FALSE; | |
488 | } | |
489 | } | |
490 | ||
491 | void | |
492 | miRenderPixelToColor(PictFormatPtr format, CARD32 pixel, xRenderColor * color) | |
493 | { | |
494 | CARD32 r, g, b, a; | |
495 | miIndexedPtr pIndexed; | |
496 | ||
497 | switch (format->type) { | |
498 | case PictTypeDirect: | |
499 | r = (pixel >> format->direct.red) & format->direct.redMask; | |
500 | g = (pixel >> format->direct.green) & format->direct.greenMask; | |
501 | b = (pixel >> format->direct.blue) & format->direct.blueMask; | |
502 | a = (pixel >> format->direct.alpha) & format->direct.alphaMask; | |
503 | color->red = miFillColor(r, Ones(format->direct.redMask)); | |
504 | color->green = miFillColor(g, Ones(format->direct.greenMask)); | |
505 | color->blue = miFillColor(b, Ones(format->direct.blueMask)); | |
506 | color->alpha = miFillColor(a, Ones(format->direct.alphaMask)); | |
507 | break; | |
508 | case PictTypeIndexed: | |
509 | pIndexed = (miIndexedPtr) (format->index.devPrivate); | |
510 | pixel = pIndexed->rgba[pixel & (MI_MAX_INDEXED - 1)]; | |
511 | r = (pixel >> 16) & 0xff; | |
512 | g = (pixel >> 8) & 0xff; | |
513 | b = (pixel) & 0xff; | |
514 | color->red = miFillColor(r, 8); | |
515 | color->green = miFillColor(g, 8); | |
516 | color->blue = miFillColor(b, 8); | |
517 | color->alpha = 0xffff; | |
518 | break; | |
519 | } | |
520 | } | |
521 | ||
522 | void | |
523 | miTriStrip(CARD8 op, | |
524 | PicturePtr pSrc, | |
525 | PicturePtr pDst, | |
526 | PictFormatPtr maskFormat, | |
527 | INT16 xSrc, INT16 ySrc, int npoints, xPointFixed * points) | |
528 | { | |
529 | xTriangle *tris, *tri; | |
530 | int ntri; | |
531 | ||
532 | ntri = npoints - 2; | |
533 | tris = malloc(ntri * sizeof(xTriangle)); | |
534 | if (!tris) | |
535 | return; | |
536 | ||
537 | for (tri = tris; npoints >= 3; npoints--, points++, tri++) { | |
538 | tri->p1 = points[0]; | |
539 | tri->p2 = points[1]; | |
540 | tri->p3 = points[2]; | |
541 | } | |
542 | CompositeTriangles(op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris); | |
543 | free(tris); | |
544 | } | |
545 | ||
546 | void | |
547 | miTriFan(CARD8 op, | |
548 | PicturePtr pSrc, | |
549 | PicturePtr pDst, | |
550 | PictFormatPtr maskFormat, | |
551 | INT16 xSrc, INT16 ySrc, int npoints, xPointFixed * points) | |
552 | { | |
553 | xTriangle *tris, *tri; | |
554 | xPointFixed *first; | |
555 | int ntri; | |
556 | ||
557 | ntri = npoints - 2; | |
558 | tris = malloc(ntri * sizeof(xTriangle)); | |
559 | if (!tris) | |
560 | return; | |
561 | ||
562 | first = points++; | |
563 | for (tri = tris; npoints >= 3; npoints--, points++, tri++) { | |
564 | tri->p1 = *first; | |
565 | tri->p2 = points[0]; | |
566 | tri->p3 = points[1]; | |
567 | } | |
568 | CompositeTriangles(op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris); | |
569 | free(tris); | |
570 | } | |
571 | ||
572 | Bool | |
573 | miPictureInit(ScreenPtr pScreen, PictFormatPtr formats, int nformats) | |
574 | { | |
575 | PictureScreenPtr ps; | |
576 | ||
577 | if (!PictureInit(pScreen, formats, nformats)) | |
578 | return FALSE; | |
579 | ps = GetPictureScreen(pScreen); | |
580 | ps->CreatePicture = miCreatePicture; | |
581 | ps->DestroyPicture = miDestroyPicture; | |
582 | ps->ChangePictureClip = miChangePictureClip; | |
583 | ps->DestroyPictureClip = miDestroyPictureClip; | |
584 | ps->ChangePicture = miChangePicture; | |
585 | ps->ValidatePicture = miValidatePicture; | |
586 | ps->InitIndexed = miInitIndexed; | |
587 | ps->CloseIndexed = miCloseIndexed; | |
588 | ps->UpdateIndexed = miUpdateIndexed; | |
589 | ps->ChangePictureTransform = miChangePictureTransform; | |
590 | ps->ChangePictureFilter = miChangePictureFilter; | |
591 | ps->RealizeGlyph = miRealizeGlyph; | |
592 | ps->UnrealizeGlyph = miUnrealizeGlyph; | |
593 | ||
594 | /* MI rendering routines */ | |
595 | ps->Composite = 0; /* requires DDX support */ | |
596 | ps->Glyphs = miGlyphs; | |
597 | ps->CompositeRects = miCompositeRects; | |
598 | ps->Trapezoids = 0; | |
599 | ps->Triangles = 0; | |
600 | ||
601 | ps->RasterizeTrapezoid = 0; /* requires DDX support */ | |
602 | ps->AddTraps = 0; /* requires DDX support */ | |
603 | ps->AddTriangles = 0; /* requires DDX support */ | |
604 | ||
605 | ps->TriStrip = miTriStrip; /* converts call to CompositeTriangles */ | |
606 | ps->TriFan = miTriFan; | |
607 | ||
608 | return TRUE; | |
609 | } |