VirtualBox

source: vbox/trunk/src/VBox/HostServices/SharedOpenGL/crserverlib/server_muralfbo.c@ 44893

Last change on this file since 44893 was 44893, checked in by vboxsync, 12 years ago

crOpenGL: fix offscreen rendering data synch
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File size: 23.0 KB
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1/* $Id: server_muralfbo.c 44893 2013-03-01 18:58:52Z vboxsync $ */
2
3/** @file
4 * VBox crOpenGL: Window to FBO redirect support.
5 */
6
7/*
8 * Copyright (C) 2010-2013 Oracle Corporation
9 *
10 * This file is part of VirtualBox Open Source Edition (OSE), as
11 * available from http://www.215389.xyz. This file is free software;
12 * you can redistribute it and/or modify it under the terms of the GNU
13 * General Public License (GPL) as published by the Free Software
14 * Foundation, in version 2 as it comes in the "COPYING" file of the
15 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
16 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
17 */
18
19#include "server.h"
20#include "cr_string.h"
21#include "cr_mem.h"
22#include "cr_vreg.h"
23#include "render/renderspu.h"
24
25static int crServerGetPointScreen(GLint x, GLint y)
26{
27 int i;
28
29 for (i=0; i<cr_server.screenCount; ++i)
30 {
31 if ((x>=cr_server.screen[i].x && x<cr_server.screen[i].x+(int)cr_server.screen[i].w)
32 && (y>=cr_server.screen[i].y && y<cr_server.screen[i].y+(int)cr_server.screen[i].h))
33 {
34 return i;
35 }
36 }
37
38 return -1;
39}
40
41static GLboolean crServerMuralCoverScreen(CRMuralInfo *mural, int sId)
42{
43 return mural->gX < cr_server.screen[sId].x
44 && mural->gX+(int)mural->width > cr_server.screen[sId].x+(int)cr_server.screen[sId].w
45 && mural->gY < cr_server.screen[sId].y
46 && mural->gY+(int)mural->height > cr_server.screen[sId].y+(int)cr_server.screen[sId].h;
47}
48
49/* Called when a new CRMuralInfo is created
50 * or when OutputRedirect status is changed.
51 */
52void crServerSetupOutputRedirect(CRMuralInfo *mural)
53{
54 /* Unset the previous redirect. */
55 if (mural->pvOutputRedirectInstance)
56 {
57 cr_server.outputRedirect.CROREnd(mural->pvOutputRedirectInstance);
58 mural->pvOutputRedirectInstance = NULL;
59 }
60
61 /* Setup a new redirect. */
62 if (cr_server.bUseOutputRedirect)
63 {
64 /* Query supported formats. */
65 uint32_t cbFormats = 4096;
66 char *pachFormats = (char *)crAlloc(cbFormats);
67
68 if (pachFormats)
69 {
70 int rc = cr_server.outputRedirect.CRORContextProperty(cr_server.outputRedirect.pvContext,
71 0 /* H3DOR_PROP_FORMATS */, // @todo from a header
72 pachFormats, cbFormats, &cbFormats);
73 if (RT_SUCCESS(rc))
74 {
75 if (RTStrStr(pachFormats, "H3DOR_FMT_RGBA_TOPDOWN"))
76 {
77 cr_server.outputRedirect.CRORBegin(cr_server.outputRedirect.pvContext,
78 &mural->pvOutputRedirectInstance,
79 "H3DOR_FMT_RGBA_TOPDOWN"); // @todo from a header
80 }
81 }
82
83 crFree(pachFormats);
84 }
85
86 /* If this is not NULL then there was a supported format. */
87 if (mural->pvOutputRedirectInstance)
88 {
89 cr_server.outputRedirect.CRORGeometry(mural->pvOutputRedirectInstance,
90 mural->hX, mural->hY,
91 mural->width, mural->height);
92 // @todo the code assumes that RTRECT == four of GLInts
93 cr_server.outputRedirect.CRORVisibleRegion(mural->pvOutputRedirectInstance,
94 mural->cVisibleRects, (RTRECT *)mural->pVisibleRects);
95 }
96 }
97}
98
99void crServerCheckMuralGeometry(CRMuralInfo *mural)
100{
101 int tlS, brS, trS, blS;
102 int overlappingScreenCount, primaryS, i;
103
104 if (!mural->width || !mural->height)
105 return;
106
107 if (cr_server.screenCount<2 && !cr_server.bForceOffscreenRendering)
108 {
109 CRScreenViewportInfo *pVieport = &cr_server.screenVieport[mural->screenId];
110 CRASSERT(cr_server.screenCount>0);
111 CRASSERT(mural->fUseFBO == CR_SERVER_REDIR_NONE);
112
113 mural->hX = mural->gX-cr_server.screen[0].x;
114 mural->hY = mural->gY-cr_server.screen[0].y;
115
116 cr_server.head_spu->dispatch_table.WindowPosition(mural->spuWindow, mural->hX - pVieport->x, mural->hY - pVieport->y);
117
118 return;
119 }
120
121 tlS = crServerGetPointScreen(mural->gX, mural->gY);
122 brS = crServerGetPointScreen(mural->gX+mural->width-1, mural->gY+mural->height-1);
123
124 if (tlS==brS && tlS>=0)
125 {
126 overlappingScreenCount = 1;
127 primaryS = tlS;
128 }
129 else
130 {
131 trS = crServerGetPointScreen(mural->gX+mural->width-1, mural->gY);
132 blS = crServerGetPointScreen(mural->gX, mural->gY+mural->height-1);
133
134 primaryS = -1; overlappingScreenCount = 0;
135 for (i=0; i<cr_server.screenCount; ++i)
136 {
137 if ((i==tlS) || (i==brS) || (i==trS) || (i==blS)
138 || crServerMuralCoverScreen(mural, i))
139 {
140 overlappingScreenCount++;
141 primaryS = primaryS<0 ? i:primaryS;
142 }
143 }
144
145 if (!overlappingScreenCount)
146 {
147 primaryS = 0;
148 }
149 }
150
151 if (primaryS!=mural->screenId)
152 {
153 mural->screenId = primaryS;
154
155 renderspuSetWindowId(cr_server.screen[primaryS].winID);
156 renderspuReparentWindow(mural->spuWindow);
157 renderspuSetWindowId(cr_server.screen[0].winID);
158 }
159
160 mural->hX = mural->gX-cr_server.screen[primaryS].x;
161 mural->hY = mural->gY-cr_server.screen[primaryS].y;
162
163 if (overlappingScreenCount<2 && !cr_server.bForceOffscreenRendering)
164 {
165 CRScreenViewportInfo *pVieport = &cr_server.screenVieport[mural->screenId];
166
167 if (mural->fUseFBO)
168 {
169 crServerRedirMuralFBO(mural, CR_SERVER_REDIR_NONE);
170 crServerDeleteMuralFBO(mural);
171 }
172
173 cr_server.head_spu->dispatch_table.WindowPosition(mural->spuWindow, mural->hX - pVieport->x, mural->hY - pVieport->y);
174 }
175 else
176 {
177 GLubyte redir = overlappingScreenCount >= 2 ? CR_SERVER_REDIR_FBO_RAM : cr_server.bForceOffscreenRendering;
178
179 if (mural->spuWindow)
180 {
181 if (mural->fUseFBO)
182 {
183 if (mural->width!=mural->fboWidth
184 || mural->height!=mural->fboHeight)
185 {
186 crServerRedirMuralFBO(mural, CR_SERVER_REDIR_NONE);
187 crServerDeleteMuralFBO(mural);
188 }
189 }
190
191 if (mural->fUseFBO != redir)
192 {
193 crServerRedirMuralFBO(mural, redir);
194 }
195 }
196#ifdef DEBUG_misha
197 else
198 {
199 Assert(!mural->fUseFBO);
200 }
201#endif
202
203 if (mural->fUseFBO != CR_SERVER_REDIR_FBO_RAM)
204 {
205 CRScreenViewportInfo *pVieport = &cr_server.screenVieport[mural->screenId];
206
207 cr_server.head_spu->dispatch_table.WindowPosition(mural->spuWindow, mural->hX - pVieport->x, mural->hY - pVieport->y);
208 }
209 }
210
211 if (mural->pvOutputRedirectInstance)
212 {
213 cr_server.outputRedirect.CRORGeometry(mural->pvOutputRedirectInstance,
214 mural->hX, mural->hY,
215 mural->width, mural->height);
216 }
217}
218
219GLboolean crServerSupportRedirMuralFBO(void)
220{
221 static GLboolean fInited = GL_FALSE;
222 static GLboolean fSupported = GL_FALSE;
223 if (!fInited)
224 {
225 const GLubyte* pExt = cr_server.head_spu->dispatch_table.GetString(GL_REAL_EXTENSIONS);
226
227 fSupported = ( NULL!=crStrstr((const char*)pExt, "GL_ARB_framebuffer_object")
228 || NULL!=crStrstr((const char*)pExt, "GL_EXT_framebuffer_object"))
229 && NULL!=crStrstr((const char*)pExt, "GL_ARB_texture_non_power_of_two");
230 fInited = GL_TRUE;
231 }
232 return fSupported;
233}
234
235static void crServerCreateMuralFBO(CRMuralInfo *mural);
236
237void crServerRedirMuralFBO(CRMuralInfo *mural, GLubyte redir)
238{
239 if (mural->fUseFBO == redir)
240 {
241 if (redir)
242 crWarning("crServerRedirMuralFBO called with the same redir status %d", redir);
243 return;
244 }
245
246 if (redir)
247 {
248 if (!crServerSupportRedirMuralFBO())
249 {
250 crWarning("FBO not supported, can't redirect window output");
251 return;
252 }
253
254 if (redir == CR_SERVER_REDIR_FBO_RAM)
255 cr_server.head_spu->dispatch_table.WindowShow(mural->spuWindow, GL_FALSE);
256 else
257 cr_server.head_spu->dispatch_table.WindowShow(mural->spuWindow, mural->bVisible);
258
259 if (mural->aidFBOs[0]==0)
260 {
261 crServerCreateMuralFBO(mural);
262 }
263
264 if (!crStateGetCurrent()->framebufferobject.drawFB)
265 {
266 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_DRAW_FRAMEBUFFER, mural->aidFBOs[mural->iCurDrawBuffer]);
267 }
268 if (!crStateGetCurrent()->framebufferobject.readFB)
269 {
270 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_READ_FRAMEBUFFER, mural->aidFBOs[mural->iCurReadBuffer]);
271 }
272
273 if (cr_server.curClient && cr_server.curClient->currentMural == mural)
274 {
275 crStateGetCurrent()->buffer.width = 0;
276 crStateGetCurrent()->buffer.height = 0;
277 }
278 }
279 else
280 {
281 if (redir == CR_SERVER_REDIR_NONE)
282 {
283 /* tell renderspu we do not want compositor presentation anymore
284 * renderspu will ensure its redraw thread is done with using the compositor, etc. */
285 cr_server.head_spu->dispatch_table.VBoxPresentComposition(mural->spuWindow, NULL, NULL);
286 }
287
288 if (mural->fUseFBO == CR_SERVER_REDIR_FBO_RAM)
289 cr_server.head_spu->dispatch_table.WindowShow(mural->spuWindow, mural->bVisible);
290
291 if (mural->fUseFBO && crServerSupportRedirMuralFBO())
292 {
293 if (!crStateGetCurrent()->framebufferobject.drawFB)
294 {
295 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_DRAW_FRAMEBUFFER, 0);
296 }
297 if (!crStateGetCurrent()->framebufferobject.readFB)
298 {
299 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_READ_FRAMEBUFFER, 0);
300 }
301 }
302
303 if (cr_server.curClient && cr_server.curClient->currentMural == mural)
304 {
305 crStateGetCurrent()->buffer.width = mural->width;
306 crStateGetCurrent()->buffer.height = mural->height;
307 }
308 }
309
310 mural->fUseFBO = redir;
311}
312
313static void crServerCreateMuralFBO(CRMuralInfo *mural)
314{
315 CRContext *ctx = crStateGetCurrent();
316 GLuint uid, i;
317 GLenum status;
318 SPUDispatchTable *gl = &cr_server.head_spu->dispatch_table;
319 CRContextInfo *pMuralContextInfo;
320
321 CRASSERT(mural->aidFBOs[0]==0);
322 CRASSERT(mural->aidFBOs[1]==0);
323 CRASSERT(mural->width == mural->CEntry.Tex.width);
324 CRASSERT(mural->height == mural->CEntry.Tex.height);
325
326 pMuralContextInfo = cr_server.currentCtxInfo;
327 if (!pMuralContextInfo)
328 {
329 /* happens on saved state load */
330 CRASSERT(cr_server.MainContextInfo.SpuContext);
331 pMuralContextInfo = &cr_server.MainContextInfo;
332 cr_server.head_spu->dispatch_table.MakeCurrent(mural->spuWindow, 0, cr_server.MainContextInfo.SpuContext);
333 }
334
335 if (pMuralContextInfo->CreateInfo.visualBits != mural->CreateInfo.visualBits)
336 {
337 crWarning("mural visual bits do not match with current context visual bits!");
338 }
339
340 mural->cBuffers = 2;
341 mural->iBbBuffer = 0;
342 /*Color texture*/
343 for (i = 0; i < mural->cBuffers; ++i)
344 {
345 gl->GenTextures(1, &mural->aidColorTexs[i]);
346 gl->BindTexture(GL_TEXTURE_2D, mural->aidColorTexs[i]);
347 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
348 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
349 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
350 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
351 if (crStateIsBufferBound(GL_PIXEL_UNPACK_BUFFER_ARB))
352 {
353 gl->BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
354 }
355 gl->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, mural->width, mural->height,
356 0, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
357 }
358
359 /*Depth&Stencil*/
360 gl->GenRenderbuffersEXT(1, &mural->idDepthStencilRB);
361 gl->BindRenderbufferEXT(GL_RENDERBUFFER_EXT, mural->idDepthStencilRB);
362 gl->RenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH24_STENCIL8_EXT,
363 mural->width, mural->height);
364
365 /*FBO*/
366 for (i = 0; i < mural->cBuffers; ++i)
367 {
368 gl->GenFramebuffersEXT(1, &mural->aidFBOs[i]);
369 gl->BindFramebufferEXT(GL_FRAMEBUFFER_EXT, mural->aidFBOs[i]);
370
371 gl->FramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
372 GL_TEXTURE_2D, mural->aidColorTexs[i], 0);
373 gl->FramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
374 GL_RENDERBUFFER_EXT, mural->idDepthStencilRB);
375 gl->FramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT,
376 GL_RENDERBUFFER_EXT, mural->idDepthStencilRB);
377
378 status = gl->CheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
379 if (status!=GL_FRAMEBUFFER_COMPLETE_EXT)
380 {
381 crWarning("FBO status(0x%x) isn't complete", status);
382 }
383 }
384
385 mural->fboWidth = mural->width;
386 mural->fboHeight = mural->height;
387
388 mural->iCurDrawBuffer = crServerMuralFBOIdxFromBufferName(mural, ctx->buffer.drawBuffer);
389 mural->iCurReadBuffer = crServerMuralFBOIdxFromBufferName(mural, ctx->buffer.readBuffer);
390
391 /*PBO*/
392 if (cr_server.bUsePBOForReadback)
393 {
394 gl->GenBuffersARB(1, &mural->idPBO);
395 gl->BindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, mural->idPBO);
396 gl->BufferDataARB(GL_PIXEL_PACK_BUFFER_ARB, mural->width*mural->height*4, 0, GL_STREAM_READ_ARB);
397 gl->BindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, ctx->bufferobject.packBuffer->hwid);
398
399 if (!mural->idPBO)
400 {
401 crWarning("PBO create failed");
402 }
403 }
404
405 /*Restore gl state*/
406 uid = ctx->texture.unit[ctx->texture.curTextureUnit].currentTexture2D->hwid;
407 gl->BindTexture(GL_TEXTURE_2D, uid);
408
409 uid = ctx->framebufferobject.renderbuffer ? ctx->framebufferobject.renderbuffer->hwid:0;
410 gl->BindRenderbufferEXT(GL_RENDERBUFFER_EXT, uid);
411
412 uid = ctx->framebufferobject.drawFB ? ctx->framebufferobject.drawFB->hwid:0;
413 gl->BindFramebufferEXT(GL_DRAW_FRAMEBUFFER, uid);
414
415 uid = ctx->framebufferobject.readFB ? ctx->framebufferobject.readFB->hwid:0;
416 gl->BindFramebufferEXT(GL_READ_FRAMEBUFFER, uid);
417
418 if (crStateIsBufferBound(GL_PIXEL_UNPACK_BUFFER_ARB))
419 {
420 gl->BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, ctx->bufferobject.unpackBuffer->hwid);
421 }
422
423 CRASSERT(mural->aidColorTexs[CR_SERVER_FBO_FB_IDX(mural)]);
424 CrVrScrCompositorEntryTexNameUpdate(&mural->CEntry, mural->aidColorTexs[CR_SERVER_FBO_FB_IDX(mural)]);
425}
426
427void crServerDeleteMuralFBO(CRMuralInfo *mural)
428{
429 CRASSERT(!mural->fUseFBO);
430
431 if (mural->aidFBOs[0]!=0)
432 {
433 GLuint i;
434 for (i = 0; i < mural->cBuffers; ++i)
435 {
436 cr_server.head_spu->dispatch_table.DeleteTextures(1, &mural->aidColorTexs[i]);
437 mural->aidColorTexs[i] = 0;
438 }
439
440 cr_server.head_spu->dispatch_table.DeleteRenderbuffersEXT(1, &mural->idDepthStencilRB);
441 mural->idDepthStencilRB = 0;
442
443 for (i = 0; i < mural->cBuffers; ++i)
444 {
445 cr_server.head_spu->dispatch_table.DeleteFramebuffersEXT(1, &mural->aidFBOs[i]);
446 mural->aidFBOs[i] = 0;
447 }
448 }
449
450 if (mural->idPBO!=0)
451 {
452 CRASSERT(cr_server.bUsePBOForReadback);
453 cr_server.head_spu->dispatch_table.DeleteBuffersARB(1, &mural->idPBO);
454 mural->idPBO = 0;
455 }
456
457 mural->cBuffers = 0;
458}
459
460#define MIN(a, b) ((a) < (b) ? (a) : (b))
461#define MAX(a, b) ((a) > (b) ? (a) : (b))
462
463static GLboolean crServerIntersectRect(CRrecti *a, CRrecti *b, CRrecti *rect)
464{
465 CRASSERT(a && b && rect);
466
467 rect->x1 = MAX(a->x1, b->x1);
468 rect->x2 = MIN(a->x2, b->x2);
469 rect->y1 = MAX(a->y1, b->y1);
470 rect->y2 = MIN(a->y2, b->y2);
471
472 return (rect->x2>rect->x1) && (rect->y2>rect->y1);
473}
474
475static GLboolean crServerIntersectScreen(CRMuralInfo *mural, int sId, CRrecti *rect)
476{
477 rect->x1 = MAX(mural->gX, cr_server.screen[sId].x);
478 rect->x2 = MIN(mural->gX+(int)mural->fboWidth, cr_server.screen[sId].x+(int)cr_server.screen[sId].w);
479 rect->y1 = MAX(mural->gY, cr_server.screen[sId].y);
480 rect->y2 = MIN(mural->gY+(int)mural->fboHeight, cr_server.screen[sId].y+(int)cr_server.screen[sId].h);
481
482 return (rect->x2>rect->x1) && (rect->y2>rect->y1);
483}
484
485static void crServerCopySubImage(char *pDst, char* pSrc, CRrecti *pRect, int srcWidth, int srcHeight)
486{
487 int i;
488 int dstrowsize = 4*(pRect->x2-pRect->x1);
489 int srcrowsize = 4*srcWidth;
490 int height = pRect->y2-pRect->y1;
491
492 pSrc += 4*pRect->x1 + srcrowsize*(srcHeight-1-pRect->y1);
493
494 for (i=0; i<height; ++i)
495 {
496 crMemcpy(pDst, pSrc, dstrowsize);
497
498 pSrc -= srcrowsize;
499 pDst += dstrowsize;
500 }
501}
502
503static void crServerTransformRect(CRrecti *pDst, CRrecti *pSrc, int dx, int dy)
504{
505 pDst->x1 = pSrc->x1+dx;
506 pDst->x2 = pSrc->x2+dx;
507 pDst->y1 = pSrc->y1+dy;
508 pDst->y2 = pSrc->y2+dy;
509}
510
511void crServerPresentFBO(CRMuralInfo *mural)
512{
513 char *pixels=NULL, *tmppixels;
514 int i, j;
515 CRrecti rect, rectwr, sectr;
516 GLuint idPBO;
517 CRContext *ctx = crStateGetCurrent();
518 VBOXVR_TEXTURE Tex;
519
520 CRASSERT(mural->fUseFBO);
521 CRASSERT(cr_server.pfnPresentFBO || mural->fUseFBO == CR_SERVER_REDIR_FBO_BLT);
522
523 if (!mural->bVisible)
524 {
525 return;
526 }
527
528 if (!mural->width || !mural->height)
529 {
530 return;
531 }
532
533 if (!CrVrScrCompositorEntryIsInList(&mural->CEntry))
534 return;
535
536 if (mural->fUseFBO == CR_SERVER_REDIR_FBO_BLT)
537 {
538 GLuint idDrawFBO, idReadFBO;
539
540 idDrawFBO = mural->aidFBOs[mural->iCurDrawBuffer];
541 idReadFBO = mural->aidFBOs[mural->iCurReadBuffer];
542
543 crStateSwitchPrepare(NULL, ctx, idDrawFBO, idReadFBO);
544
545 cr_server.head_spu->dispatch_table.VBoxPresentComposition(mural->spuWindow, &mural->Compositor, &mural->CEntry);
546
547 crStateSwitchPostprocess(ctx, NULL, idDrawFBO, idReadFBO);
548
549 return;
550 }
551
552 Tex.width = mural->width;
553 Tex.height = mural->height;
554 Tex.target = GL_TEXTURE_2D;
555 Tex.hwid = mural->aidColorTexs[CR_SERVER_FBO_FB_IDX(mural)];
556 CRASSERT(Tex.hwid);
557
558 if (cr_server.bUsePBOForReadback && !mural->idPBO)
559 {
560 crWarning("Mural doesn't have PBO even though bUsePBOForReadback is set!");
561 }
562
563 idPBO = cr_server.bUsePBOForReadback ? mural->idPBO : 0;
564 if (idPBO)
565 {
566 CRASSERT(mural->fboWidth == mural->width);
567 CRASSERT(mural->fboHeight == mural->height);
568 }
569
570 pixels = CrHlpGetTexImage(ctx, &Tex, idPBO, GL_BGRA);
571 if (!pixels)
572 {
573 crWarning("CrHlpGetTexImage failed in crServerPresentFBO");
574 return;
575 }
576
577 for (i=0; i<cr_server.screenCount; ++i)
578 {
579 if (crServerIntersectScreen(mural, i, &rect))
580 {
581 /* rect in window relative coords */
582 crServerTransformRect(&rectwr, &rect, -mural->gX, -mural->gY);
583
584 if (!mural->pVisibleRects)
585 {
586 /*we don't get any rects info for guest compiz windows, so we treat windows as visible unless explicitly received 0 visible rects*/
587 if (!mural->bReceivedRects)
588 {
589 tmppixels = crAlloc(4*(rect.x2-rect.x1)*(rect.y2-rect.y1));
590 if (!tmppixels)
591 {
592 crWarning("Out of memory in crServerPresentFBO");
593 crFree(pixels);
594 return;
595 }
596
597 crServerCopySubImage(tmppixels, pixels, &rectwr, mural->fboWidth, mural->fboHeight);
598 /*Note: pfnPresentFBO would free tmppixels*/
599 cr_server.pfnPresentFBO(tmppixels, i, rect.x1-cr_server.screen[i].x, rect.y1-cr_server.screen[i].y, rect.x2-rect.x1, rect.y2-rect.y1);
600 }
601 }
602 else
603 {
604 for (j=0; j<mural->cVisibleRects; ++j)
605 {
606 if (crServerIntersectRect(&rectwr, (CRrecti*) &mural->pVisibleRects[4*j], &sectr))
607 {
608 tmppixels = crAlloc(4*(sectr.x2-sectr.x1)*(sectr.y2-sectr.y1));
609 if (!tmppixels)
610 {
611 crWarning("Out of memory in crServerPresentFBO");
612 crFree(pixels);
613 return;
614 }
615
616 crServerCopySubImage(tmppixels, pixels, &sectr, mural->fboWidth, mural->fboHeight);
617 /*Note: pfnPresentFBO would free tmppixels*/
618 cr_server.pfnPresentFBO(tmppixels, i,
619 sectr.x1+mural->gX-cr_server.screen[i].x,
620 sectr.y1+mural->gY-cr_server.screen[i].y,
621 sectr.x2-sectr.x1, sectr.y2-sectr.y1);
622 }
623 }
624 }
625 }
626 }
627
628 if (mural->pvOutputRedirectInstance)
629 {
630 /* @todo find out why presentfbo is not called but crorframe is called. */
631 cr_server.outputRedirect.CRORFrame(mural->pvOutputRedirectInstance,
632 pixels,
633 4 * mural->fboWidth * mural->fboHeight);
634 }
635
636 CrHlpFreeTexImage(ctx, idPBO, pixels);
637}
638
639GLboolean crServerIsRedirectedToFBO()
640{
641 return cr_server.curClient
642 && cr_server.curClient->currentMural
643 && cr_server.curClient->currentMural->fUseFBO;
644}
645
646GLuint crServerMuralFBOIdxFromBufferName(CRMuralInfo *mural, GLenum buffer)
647{
648 if (buffer == GL_FRONT
649 || buffer == GL_FRONT_LEFT
650 || buffer == GL_FRONT_RIGHT)
651 return CR_SERVER_FBO_FB_IDX(mural);
652 return CR_SERVER_FBO_BB_IDX(mural);
653}
654
655void crServerMuralFBOSwapBuffers(CRMuralInfo *mural)
656{
657 CRContext *ctx = crStateGetCurrent();
658 GLuint iOldCurDrawBuffer = mural->iCurDrawBuffer;
659 GLuint iOldCurReadBuffer = mural->iCurReadBuffer;
660 mural->iBbBuffer = ((mural->iBbBuffer + 1) % (mural->cBuffers));
661 mural->iCurDrawBuffer = ((mural->iCurDrawBuffer + 1) % (mural->cBuffers));
662 mural->iCurReadBuffer = ((mural->iCurReadBuffer + 1) % (mural->cBuffers));
663 Assert(iOldCurDrawBuffer != mural->iCurDrawBuffer || mural->cBuffers == 1);
664 Assert(iOldCurReadBuffer != mural->iCurReadBuffer || mural->cBuffers == 1);
665 if (!ctx->framebufferobject.drawFB && iOldCurDrawBuffer != mural->iCurDrawBuffer)
666 {
667 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_DRAW_FRAMEBUFFER, mural->aidFBOs[mural->iCurDrawBuffer]);
668 }
669 if (!ctx->framebufferobject.readFB && iOldCurReadBuffer != mural->iCurReadBuffer)
670 {
671 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_READ_FRAMEBUFFER, mural->aidFBOs[mural->iCurReadBuffer]);
672 }
673 Assert(mural->aidColorTexs[CR_SERVER_FBO_FB_IDX(mural)]);
674 CrVrScrCompositorEntryTexNameUpdate(&mural->CEntry, mural->aidColorTexs[CR_SERVER_FBO_FB_IDX(mural)]);
675}
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