VirtualBox

source: vbox/trunk/src/VBox/HostServices/SharedOpenGL/crserverlib/server_muralfbo.c@ 45038

Last change on this file since 45038 was 45038, checked in by vboxsync, 12 years ago

crOpenGL: disable muralfbo on zero sizes
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File size: 24.0 KB
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1/* $Id: server_muralfbo.c 45038 2013-03-14 11:35:17Z 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->CreateInfo.externalID)
105 return;
106
107 if (!mural->width || !mural->height)
108 {
109 crServerRedirMuralFBO(mural, CR_SERVER_REDIR_NONE);
110 crServerDeleteMuralFBO(mural);
111 return;
112 }
113
114 if (cr_server.screenCount<2 && !cr_server.bForceOffscreenRendering)
115 {
116 CRScreenViewportInfo *pVieport = &cr_server.screenVieport[mural->screenId];
117 CRASSERT(cr_server.screenCount>0);
118 CRASSERT(mural->fUseFBO == CR_SERVER_REDIR_NONE);
119
120 mural->hX = mural->gX-cr_server.screen[0].x;
121 mural->hY = mural->gY-cr_server.screen[0].y;
122
123 cr_server.head_spu->dispatch_table.WindowPosition(mural->spuWindow, mural->hX - pVieport->x, mural->hY - pVieport->y);
124
125 return;
126 }
127
128 tlS = crServerGetPointScreen(mural->gX, mural->gY);
129 brS = crServerGetPointScreen(mural->gX+mural->width-1, mural->gY+mural->height-1);
130
131 if (tlS==brS && tlS>=0)
132 {
133 overlappingScreenCount = 1;
134 primaryS = tlS;
135 }
136 else
137 {
138 trS = crServerGetPointScreen(mural->gX+mural->width-1, mural->gY);
139 blS = crServerGetPointScreen(mural->gX, mural->gY+mural->height-1);
140
141 primaryS = -1; overlappingScreenCount = 0;
142 for (i=0; i<cr_server.screenCount; ++i)
143 {
144 if ((i==tlS) || (i==brS) || (i==trS) || (i==blS)
145 || crServerMuralCoverScreen(mural, i))
146 {
147 overlappingScreenCount++;
148 primaryS = primaryS<0 ? i:primaryS;
149 }
150 }
151
152 if (!overlappingScreenCount)
153 {
154 primaryS = 0;
155 }
156 }
157
158 if (primaryS!=mural->screenId)
159 {
160 mural->screenId = primaryS;
161
162 renderspuSetWindowId(cr_server.screen[primaryS].winID);
163 renderspuReparentWindow(mural->spuWindow);
164 renderspuSetWindowId(cr_server.screen[0].winID);
165 }
166
167 mural->hX = mural->gX-cr_server.screen[primaryS].x;
168 mural->hY = mural->gY-cr_server.screen[primaryS].y;
169
170 if (overlappingScreenCount<2 && !cr_server.bForceOffscreenRendering)
171 {
172 CRScreenViewportInfo *pVieport = &cr_server.screenVieport[mural->screenId];
173
174 if (mural->fUseFBO)
175 {
176 crServerRedirMuralFBO(mural, CR_SERVER_REDIR_NONE);
177 crServerDeleteMuralFBO(mural);
178 }
179
180 cr_server.head_spu->dispatch_table.WindowPosition(mural->spuWindow, mural->hX - pVieport->x, mural->hY - pVieport->y);
181 }
182 else
183 {
184 GLubyte redir = overlappingScreenCount >= 2 ? CR_SERVER_REDIR_FBO_RAM : cr_server.bForceOffscreenRendering;
185
186 if (mural->spuWindow)
187 {
188 if (mural->fUseFBO)
189 {
190 if (mural->width!=mural->fboWidth
191 || mural->height!=mural->fboHeight)
192 {
193 crServerRedirMuralFBO(mural, CR_SERVER_REDIR_NONE);
194 crServerDeleteMuralFBO(mural);
195 }
196 }
197
198 if (mural->fUseFBO != redir)
199 {
200 crServerRedirMuralFBO(mural, redir);
201 }
202 }
203#ifdef DEBUG_misha
204 else
205 {
206 Assert(!mural->fUseFBO);
207 }
208#endif
209
210 if (mural->fUseFBO != CR_SERVER_REDIR_FBO_RAM)
211 {
212 CRScreenViewportInfo *pVieport = &cr_server.screenVieport[mural->screenId];
213
214 cr_server.head_spu->dispatch_table.WindowPosition(mural->spuWindow, mural->hX - pVieport->x, mural->hY - pVieport->y);
215 }
216 }
217
218 if (mural->pvOutputRedirectInstance)
219 {
220 cr_server.outputRedirect.CRORGeometry(mural->pvOutputRedirectInstance,
221 mural->hX, mural->hY,
222 mural->width, mural->height);
223 }
224}
225
226GLboolean crServerSupportRedirMuralFBO(void)
227{
228 static GLboolean fInited = GL_FALSE;
229 static GLboolean fSupported = GL_FALSE;
230 if (!fInited)
231 {
232 const GLubyte* pExt = cr_server.head_spu->dispatch_table.GetString(GL_REAL_EXTENSIONS);
233
234 fSupported = ( NULL!=crStrstr((const char*)pExt, "GL_ARB_framebuffer_object")
235 || NULL!=crStrstr((const char*)pExt, "GL_EXT_framebuffer_object"))
236 && NULL!=crStrstr((const char*)pExt, "GL_ARB_texture_non_power_of_two");
237 fInited = GL_TRUE;
238 }
239 return fSupported;
240}
241
242static void crServerCreateMuralFBO(CRMuralInfo *mural);
243
244void crServerRedirMuralFBO(CRMuralInfo *mural, GLubyte redir)
245{
246 if (mural->fUseFBO == redir)
247 {
248 if (redir)
249 crWarning("crServerRedirMuralFBO called with the same redir status %d", redir);
250 return;
251 }
252
253 if (redir)
254 {
255 if (!crServerSupportRedirMuralFBO())
256 {
257 crWarning("FBO not supported, can't redirect window output");
258 return;
259 }
260
261 if (redir == CR_SERVER_REDIR_FBO_RAM)
262 cr_server.head_spu->dispatch_table.WindowShow(mural->spuWindow, GL_FALSE);
263 else
264 cr_server.head_spu->dispatch_table.WindowShow(mural->spuWindow, mural->bVisible);
265
266 if (mural->aidFBOs[0]==0)
267 {
268 crServerCreateMuralFBO(mural);
269 }
270
271 if (cr_server.currentMural == mural)
272 {
273 if (!crStateGetCurrent()->framebufferobject.drawFB)
274 {
275 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_DRAW_FRAMEBUFFER, mural->aidFBOs[mural->iCurDrawBuffer]);
276 }
277 if (!crStateGetCurrent()->framebufferobject.readFB)
278 {
279 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_READ_FRAMEBUFFER, mural->aidFBOs[mural->iCurReadBuffer]);
280 }
281
282 crStateGetCurrent()->buffer.width = 0;
283 crStateGetCurrent()->buffer.height = 0;
284 }
285 }
286 else
287 {
288 if (redir == CR_SERVER_REDIR_NONE)
289 {
290 /* tell renderspu we do not want compositor presentation anymore
291 * renderspu will ensure its redraw thread is done with using the compositor, etc. */
292 crServerVBoxCompositionDisable(mural);
293 }
294
295 if (mural->fUseFBO == CR_SERVER_REDIR_FBO_RAM)
296 cr_server.head_spu->dispatch_table.WindowShow(mural->spuWindow, mural->bVisible);
297
298 if (cr_server.currentMural == mural)
299 {
300 if (!crStateGetCurrent()->framebufferobject.drawFB)
301 {
302 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_DRAW_FRAMEBUFFER, 0);
303 }
304 if (!crStateGetCurrent()->framebufferobject.readFB)
305 {
306 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_READ_FRAMEBUFFER, 0);
307 }
308
309 crStateGetCurrent()->buffer.width = mural->width;
310 crStateGetCurrent()->buffer.height = mural->height;
311 }
312 }
313
314 mural->fUseFBO = redir;
315}
316
317static void crServerCreateMuralFBO(CRMuralInfo *mural)
318{
319 CRContext *ctx = crStateGetCurrent();
320 GLuint uid, i;
321 GLenum status;
322 SPUDispatchTable *gl = &cr_server.head_spu->dispatch_table;
323 CRContextInfo *pMuralContextInfo;
324
325 CRASSERT(mural->aidFBOs[0]==0);
326 CRASSERT(mural->aidFBOs[1]==0);
327 CRASSERT(mural->width == mural->CEntry.Tex.width);
328 CRASSERT(mural->height == mural->CEntry.Tex.height);
329
330 pMuralContextInfo = cr_server.currentCtxInfo;
331 if (!pMuralContextInfo)
332 {
333 /* happens on saved state load */
334 CRASSERT(cr_server.MainContextInfo.SpuContext);
335 pMuralContextInfo = &cr_server.MainContextInfo;
336 cr_server.head_spu->dispatch_table.MakeCurrent(mural->spuWindow, 0, cr_server.MainContextInfo.SpuContext);
337 }
338
339 if (pMuralContextInfo->CreateInfo.visualBits != mural->CreateInfo.visualBits)
340 {
341 crWarning("mural visual bits do not match with current context visual bits!");
342 }
343
344 mural->cBuffers = 2;
345 mural->iBbBuffer = 0;
346 /*Color texture*/
347 for (i = 0; i < mural->cBuffers; ++i)
348 {
349 gl->GenTextures(1, &mural->aidColorTexs[i]);
350 gl->BindTexture(GL_TEXTURE_2D, mural->aidColorTexs[i]);
351 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
352 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
353 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
354 gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
355 if (crStateIsBufferBound(GL_PIXEL_UNPACK_BUFFER_ARB))
356 {
357 gl->BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
358 }
359 gl->TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, mural->width, mural->height,
360 0, GL_BGRA, GL_UNSIGNED_BYTE, NULL);
361 }
362
363 /*Depth&Stencil*/
364 gl->GenRenderbuffersEXT(1, &mural->idDepthStencilRB);
365 gl->BindRenderbufferEXT(GL_RENDERBUFFER_EXT, mural->idDepthStencilRB);
366 gl->RenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH24_STENCIL8_EXT,
367 mural->width, mural->height);
368
369 /*FBO*/
370 for (i = 0; i < mural->cBuffers; ++i)
371 {
372 gl->GenFramebuffersEXT(1, &mural->aidFBOs[i]);
373 gl->BindFramebufferEXT(GL_FRAMEBUFFER_EXT, mural->aidFBOs[i]);
374
375 gl->FramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
376 GL_TEXTURE_2D, mural->aidColorTexs[i], 0);
377 gl->FramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
378 GL_RENDERBUFFER_EXT, mural->idDepthStencilRB);
379 gl->FramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT,
380 GL_RENDERBUFFER_EXT, mural->idDepthStencilRB);
381
382 status = gl->CheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
383 if (status!=GL_FRAMEBUFFER_COMPLETE_EXT)
384 {
385 crWarning("FBO status(0x%x) isn't complete", status);
386 }
387 }
388
389 mural->fboWidth = mural->width;
390 mural->fboHeight = mural->height;
391
392 mural->iCurDrawBuffer = crServerMuralFBOIdxFromBufferName(mural, ctx->buffer.drawBuffer);
393 mural->iCurReadBuffer = crServerMuralFBOIdxFromBufferName(mural, ctx->buffer.readBuffer);
394
395 /*PBO*/
396 if (cr_server.bUsePBOForReadback)
397 {
398 gl->GenBuffersARB(1, &mural->idPBO);
399 gl->BindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, mural->idPBO);
400 gl->BufferDataARB(GL_PIXEL_PACK_BUFFER_ARB, mural->width*mural->height*4, 0, GL_STREAM_READ_ARB);
401 gl->BindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, ctx->bufferobject.packBuffer->hwid);
402
403 if (!mural->idPBO)
404 {
405 crWarning("PBO create failed");
406 }
407 }
408
409 /*Restore gl state*/
410 uid = ctx->texture.unit[ctx->texture.curTextureUnit].currentTexture2D->hwid;
411 gl->BindTexture(GL_TEXTURE_2D, uid);
412
413 uid = ctx->framebufferobject.renderbuffer ? ctx->framebufferobject.renderbuffer->hwid:0;
414 gl->BindRenderbufferEXT(GL_RENDERBUFFER_EXT, uid);
415
416 uid = ctx->framebufferobject.drawFB ? ctx->framebufferobject.drawFB->hwid:0;
417 gl->BindFramebufferEXT(GL_DRAW_FRAMEBUFFER, uid);
418
419 uid = ctx->framebufferobject.readFB ? ctx->framebufferobject.readFB->hwid:0;
420 gl->BindFramebufferEXT(GL_READ_FRAMEBUFFER, uid);
421
422 if (crStateIsBufferBound(GL_PIXEL_UNPACK_BUFFER_ARB))
423 {
424 gl->BindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, ctx->bufferobject.unpackBuffer->hwid);
425 }
426
427 CRASSERT(mural->aidColorTexs[CR_SERVER_FBO_FB_IDX(mural)]);
428 CrVrScrCompositorEntryTexNameUpdate(&mural->CEntry, mural->aidColorTexs[CR_SERVER_FBO_FB_IDX(mural)]);
429}
430
431void crServerDeleteMuralFBO(CRMuralInfo *mural)
432{
433 CRASSERT(!mural->fUseFBO);
434
435 if (mural->aidFBOs[0]!=0)
436 {
437 GLuint i;
438 for (i = 0; i < mural->cBuffers; ++i)
439 {
440 cr_server.head_spu->dispatch_table.DeleteTextures(1, &mural->aidColorTexs[i]);
441 mural->aidColorTexs[i] = 0;
442 }
443
444 cr_server.head_spu->dispatch_table.DeleteRenderbuffersEXT(1, &mural->idDepthStencilRB);
445 mural->idDepthStencilRB = 0;
446
447 for (i = 0; i < mural->cBuffers; ++i)
448 {
449 cr_server.head_spu->dispatch_table.DeleteFramebuffersEXT(1, &mural->aidFBOs[i]);
450 mural->aidFBOs[i] = 0;
451 }
452 }
453
454 if (mural->idPBO!=0)
455 {
456 CRASSERT(cr_server.bUsePBOForReadback);
457 cr_server.head_spu->dispatch_table.DeleteBuffersARB(1, &mural->idPBO);
458 mural->idPBO = 0;
459 }
460
461 mural->cBuffers = 0;
462}
463
464#define MIN(a, b) ((a) < (b) ? (a) : (b))
465#define MAX(a, b) ((a) > (b) ? (a) : (b))
466
467static GLboolean crServerIntersectRect(CRrecti *a, CRrecti *b, CRrecti *rect)
468{
469 CRASSERT(a && b && rect);
470
471 rect->x1 = MAX(a->x1, b->x1);
472 rect->x2 = MIN(a->x2, b->x2);
473 rect->y1 = MAX(a->y1, b->y1);
474 rect->y2 = MIN(a->y2, b->y2);
475
476 return (rect->x2>rect->x1) && (rect->y2>rect->y1);
477}
478
479static GLboolean crServerIntersectScreen(CRMuralInfo *mural, int sId, CRrecti *rect)
480{
481 rect->x1 = MAX(mural->gX, cr_server.screen[sId].x);
482 rect->x2 = MIN(mural->gX+(int)mural->fboWidth, cr_server.screen[sId].x+(int)cr_server.screen[sId].w);
483 rect->y1 = MAX(mural->gY, cr_server.screen[sId].y);
484 rect->y2 = MIN(mural->gY+(int)mural->fboHeight, cr_server.screen[sId].y+(int)cr_server.screen[sId].h);
485
486 return (rect->x2>rect->x1) && (rect->y2>rect->y1);
487}
488
489static void crServerCopySubImage(char *pDst, char* pSrc, CRrecti *pRect, int srcWidth, int srcHeight)
490{
491 int i;
492 int dstrowsize = 4*(pRect->x2-pRect->x1);
493 int srcrowsize = 4*srcWidth;
494 int height = pRect->y2-pRect->y1;
495
496 pSrc += 4*pRect->x1 + srcrowsize*(srcHeight-1-pRect->y1);
497
498 for (i=0; i<height; ++i)
499 {
500 crMemcpy(pDst, pSrc, dstrowsize);
501
502 pSrc -= srcrowsize;
503 pDst += dstrowsize;
504 }
505}
506
507static void crServerTransformRect(CRrecti *pDst, CRrecti *pSrc, int dx, int dy)
508{
509 pDst->x1 = pSrc->x1+dx;
510 pDst->x2 = pSrc->x2+dx;
511 pDst->y1 = pSrc->y1+dy;
512 pDst->y2 = pSrc->y2+dy;
513}
514
515void crServerVBoxCompositionPresent(CRMuralInfo *mural)
516{
517 CRMuralInfo *currentMural = cr_server.currentMural;
518 CRContextInfo *curCtxInfo = cr_server.currentCtxInfo;
519 GLuint idDrawFBO, idReadFBO;
520 CRContext *curCtx = curCtxInfo->pContext;
521
522 CRASSERT(curCtx == crStateGetCurrent());
523
524 if (!mural->bVisible)
525 {
526 return;
527 }
528
529 if (!mural->width || !mural->height)
530 {
531 return;
532 }
533
534 if (!CrVrScrCompositorEntryIsInList(&mural->CEntry))
535 return;
536
537 if (currentMural)
538 {
539 idDrawFBO = currentMural->aidFBOs[currentMural->iCurDrawBuffer];
540 idReadFBO = currentMural->aidFBOs[currentMural->iCurReadBuffer];
541 }
542 else
543 {
544 idDrawFBO = 0;
545 idReadFBO = 0;
546 }
547
548 crStateSwitchPrepare(NULL, curCtx, idDrawFBO, idReadFBO);
549
550 cr_server.head_spu->dispatch_table.VBoxPresentComposition(mural->spuWindow, &mural->Compositor, &mural->CEntry);
551
552 crStateSwitchPostprocess(curCtx, NULL, idDrawFBO, idReadFBO);
553
554 mural->fCompositorPresented = GL_TRUE;
555}
556
557void crServerVBoxCompositionReenable(CRMuralInfo *mural)
558{
559 if (!mural->fCompositorPresented)
560 return;
561
562 crServerVBoxCompositionPresent(mural);
563}
564
565void crServerVBoxCompositionDisable(CRMuralInfo *mural)
566{
567 cr_server.head_spu->dispatch_table.VBoxPresentComposition(mural->spuWindow, NULL, NULL);
568}
569
570void crServerPresentFBO(CRMuralInfo *mural)
571{
572 char *pixels=NULL, *tmppixels;
573 int i, j;
574 CRrecti rect, rectwr, sectr;
575 GLuint idPBO;
576 CRContext *ctx = crStateGetCurrent();
577 VBOXVR_TEXTURE Tex;
578
579 CRASSERT(mural->fUseFBO);
580 CRASSERT(cr_server.pfnPresentFBO || mural->fUseFBO == CR_SERVER_REDIR_FBO_BLT);
581
582 if (!mural->bVisible)
583 {
584 return;
585 }
586
587 if (!mural->width || !mural->height)
588 {
589 return;
590 }
591
592 if (!CrVrScrCompositorEntryIsInList(&mural->CEntry))
593 return;
594
595 if (mural->fUseFBO == CR_SERVER_REDIR_FBO_BLT)
596 {
597 crServerVBoxCompositionPresent(mural);
598 return;
599 }
600
601 Tex.width = mural->width;
602 Tex.height = mural->height;
603 Tex.target = GL_TEXTURE_2D;
604 Tex.hwid = mural->aidColorTexs[CR_SERVER_FBO_FB_IDX(mural)];
605 CRASSERT(Tex.hwid);
606
607 if (cr_server.bUsePBOForReadback && !mural->idPBO)
608 {
609 crWarning("Mural doesn't have PBO even though bUsePBOForReadback is set!");
610 }
611
612 idPBO = cr_server.bUsePBOForReadback ? mural->idPBO : 0;
613 if (idPBO)
614 {
615 CRASSERT(mural->fboWidth == mural->width);
616 CRASSERT(mural->fboHeight == mural->height);
617 }
618
619 pixels = CrHlpGetTexImage(ctx, &Tex, idPBO, GL_BGRA);
620 if (!pixels)
621 {
622 crWarning("CrHlpGetTexImage failed in crServerPresentFBO");
623 return;
624 }
625
626 for (i=0; i<cr_server.screenCount; ++i)
627 {
628 if (crServerIntersectScreen(mural, i, &rect))
629 {
630 /* rect in window relative coords */
631 crServerTransformRect(&rectwr, &rect, -mural->gX, -mural->gY);
632
633 if (!mural->pVisibleRects)
634 {
635 /*we don't get any rects info for guest compiz windows, so we treat windows as visible unless explicitly received 0 visible rects*/
636 if (!mural->bReceivedRects)
637 {
638 tmppixels = crAlloc(4*(rect.x2-rect.x1)*(rect.y2-rect.y1));
639 if (!tmppixels)
640 {
641 crWarning("Out of memory in crServerPresentFBO");
642 crFree(pixels);
643 return;
644 }
645
646 crServerCopySubImage(tmppixels, pixels, &rectwr, mural->fboWidth, mural->fboHeight);
647 /*Note: pfnPresentFBO would free tmppixels*/
648 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);
649 }
650 }
651 else
652 {
653 for (j=0; j<mural->cVisibleRects; ++j)
654 {
655 if (crServerIntersectRect(&rectwr, (CRrecti*) &mural->pVisibleRects[4*j], &sectr))
656 {
657 tmppixels = crAlloc(4*(sectr.x2-sectr.x1)*(sectr.y2-sectr.y1));
658 if (!tmppixels)
659 {
660 crWarning("Out of memory in crServerPresentFBO");
661 crFree(pixels);
662 return;
663 }
664
665 crServerCopySubImage(tmppixels, pixels, &sectr, mural->fboWidth, mural->fboHeight);
666 /*Note: pfnPresentFBO would free tmppixels*/
667 cr_server.pfnPresentFBO(tmppixels, i,
668 sectr.x1+mural->gX-cr_server.screen[i].x,
669 sectr.y1+mural->gY-cr_server.screen[i].y,
670 sectr.x2-sectr.x1, sectr.y2-sectr.y1);
671 }
672 }
673 }
674 }
675 }
676
677 if (mural->pvOutputRedirectInstance)
678 {
679 /* @todo find out why presentfbo is not called but crorframe is called. */
680 cr_server.outputRedirect.CRORFrame(mural->pvOutputRedirectInstance,
681 pixels,
682 4 * mural->fboWidth * mural->fboHeight);
683 }
684
685 CrHlpFreeTexImage(ctx, idPBO, pixels);
686}
687
688GLboolean crServerIsRedirectedToFBO()
689{
690 return cr_server.curClient
691 && cr_server.curClient->currentMural
692 && cr_server.curClient->currentMural->fUseFBO;
693}
694
695GLuint crServerMuralFBOIdxFromBufferName(CRMuralInfo *mural, GLenum buffer)
696{
697 if (buffer == GL_FRONT
698 || buffer == GL_FRONT_LEFT
699 || buffer == GL_FRONT_RIGHT)
700 return CR_SERVER_FBO_FB_IDX(mural);
701 return CR_SERVER_FBO_BB_IDX(mural);
702}
703
704void crServerMuralFBOSwapBuffers(CRMuralInfo *mural)
705{
706 CRContext *ctx = crStateGetCurrent();
707 GLuint iOldCurDrawBuffer = mural->iCurDrawBuffer;
708 GLuint iOldCurReadBuffer = mural->iCurReadBuffer;
709 mural->iBbBuffer = ((mural->iBbBuffer + 1) % (mural->cBuffers));
710 mural->iCurDrawBuffer = ((mural->iCurDrawBuffer + 1) % (mural->cBuffers));
711 mural->iCurReadBuffer = ((mural->iCurReadBuffer + 1) % (mural->cBuffers));
712 Assert(iOldCurDrawBuffer != mural->iCurDrawBuffer || mural->cBuffers == 1);
713 Assert(iOldCurReadBuffer != mural->iCurReadBuffer || mural->cBuffers == 1);
714 if (!ctx->framebufferobject.drawFB && iOldCurDrawBuffer != mural->iCurDrawBuffer)
715 {
716 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_DRAW_FRAMEBUFFER, mural->aidFBOs[mural->iCurDrawBuffer]);
717 }
718 if (!ctx->framebufferobject.readFB && iOldCurReadBuffer != mural->iCurReadBuffer)
719 {
720 cr_server.head_spu->dispatch_table.BindFramebufferEXT(GL_READ_FRAMEBUFFER, mural->aidFBOs[mural->iCurReadBuffer]);
721 }
722 Assert(mural->aidColorTexs[CR_SERVER_FBO_FB_IDX(mural)]);
723 CrVrScrCompositorEntryTexNameUpdate(&mural->CEntry, mural->aidColorTexs[CR_SERVER_FBO_FB_IDX(mural)]);
724}
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