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comparison: gfx/skia/trunk/src/gpu/gl/debug/GrGLCreateDebugInterface.cpp

gfx/skia/trunk/src/gpu/gl/debug/GrGLCreateDebugInterface.cpp

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-1:000000000000 0:d9beda0aa488
1
2 /*
3 * Copyright 2012 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10 #include "gl/GrGLInterface.h"
11 #include "GrDebugGL.h"
12 #include "GrShaderObj.h"
13 #include "GrProgramObj.h"
14 #include "GrBufferObj.h"
15 #include "GrTextureUnitObj.h"
16 #include "GrTextureObj.h"
17 #include "GrFrameBufferObj.h"
18 #include "GrRenderBufferObj.h"
19 #include "GrVertexArrayObj.h"
20 #include "SkFloatingPoint.h"
21 #include "../GrGLNoOpInterface.h"
22
23 namespace { // suppress no previous prototype warning
24
25 ////////////////////////////////////////////////////////////////////////////////
26 GrGLvoid GR_GL_FUNCTION_TYPE debugGLActiveTexture(GrGLenum texture) {
27
28 // Ganesh offsets the texture unit indices
29 texture -= GR_GL_TEXTURE0;
30 GrAlwaysAssert(texture < GrDebugGL::getInstance()->getMaxTextureUnits());
31
32 GrDebugGL::getInstance()->setCurTextureUnit(texture);
33 }
34
35 ////////////////////////////////////////////////////////////////////////////////
36 GrGLvoid GR_GL_FUNCTION_TYPE debugGLAttachShader(GrGLuint programID,
37 GrGLuint shaderID) {
38
39 GrProgramObj *program = GR_FIND(programID, GrProgramObj,
40 GrDebugGL::kProgram_ObjTypes);
41 GrAlwaysAssert(program);
42
43 GrShaderObj *shader = GR_FIND(shaderID,
44 GrShaderObj,
45 GrDebugGL::kShader_ObjTypes);
46 GrAlwaysAssert(shader);
47
48 program->AttachShader(shader);
49 }
50
51 GrGLvoid GR_GL_FUNCTION_TYPE debugGLBeginQuery(GrGLenum target, GrGLuint id) {
52 }
53
54 GrGLvoid GR_GL_FUNCTION_TYPE debugGLBindAttribLocation(GrGLuint program,
55 GrGLuint index,
56 const char* name) {
57 }
58
59 ////////////////////////////////////////////////////////////////////////////////
60 GrGLvoid GR_GL_FUNCTION_TYPE debugGLBindTexture(GrGLenum target,
61 GrGLuint textureID) {
62
63 // we don't use cube maps
64 GrAlwaysAssert(target == GR_GL_TEXTURE_2D);
65 // || target == GR_GL_TEXTURE_CUBE_MAP);
66
67 // a textureID of 0 is acceptable - it binds to the default texture target
68 GrTextureObj *texture = GR_FIND(textureID, GrTextureObj,
69 GrDebugGL::kTexture_ObjTypes);
70
71 GrDebugGL::getInstance()->setTexture(texture);
72 }
73
74
75 ////////////////////////////////////////////////////////////////////////////////
76 GrGLvoid GR_GL_FUNCTION_TYPE debugGLBufferData(GrGLenum target,
77 GrGLsizeiptr size,
78 const GrGLvoid* data,
79 GrGLenum usage) {
80 GrAlwaysAssert(GR_GL_ARRAY_BUFFER == target ||
81 GR_GL_ELEMENT_ARRAY_BUFFER == target);
82 GrAlwaysAssert(size >= 0);
83 GrAlwaysAssert(GR_GL_STREAM_DRAW == usage ||
84 GR_GL_STATIC_DRAW == usage ||
85 GR_GL_DYNAMIC_DRAW == usage);
86
87 GrBufferObj *buffer = NULL;
88 switch (target) {
89 case GR_GL_ARRAY_BUFFER:
90 buffer = GrDebugGL::getInstance()->getArrayBuffer();
91 break;
92 case GR_GL_ELEMENT_ARRAY_BUFFER:
93 buffer = GrDebugGL::getInstance()->getElementArrayBuffer();
94 break;
95 default:
96 GrCrash("Unexpected target to glBufferData");
97 break;
98 }
99
100 GrAlwaysAssert(buffer);
101 GrAlwaysAssert(buffer->getBound());
102
103 buffer->allocate(size, reinterpret_cast<const GrGLchar *>(data));
104 buffer->setUsage(usage);
105 }
106
107
108 GrGLvoid GR_GL_FUNCTION_TYPE debugGLPixelStorei(GrGLenum pname,
109 GrGLint param) {
110
111 switch (pname) {
112 case GR_GL_UNPACK_ROW_LENGTH:
113 GrDebugGL::getInstance()->setUnPackRowLength(param);
114 break;
115 case GR_GL_PACK_ROW_LENGTH:
116 GrDebugGL::getInstance()->setPackRowLength(param);
117 break;
118 case GR_GL_UNPACK_ALIGNMENT:
119 break;
120 case GR_GL_PACK_ALIGNMENT:
121 GrAlwaysAssert(false);
122 break;
123 default:
124 GrAlwaysAssert(false);
125 break;
126 }
127 }
128
129 GrGLvoid GR_GL_FUNCTION_TYPE debugGLReadPixels(GrGLint x,
130 GrGLint y,
131 GrGLsizei width,
132 GrGLsizei height,
133 GrGLenum format,
134 GrGLenum type,
135 GrGLvoid* pixels) {
136
137 GrGLint pixelsInRow = width;
138 if (0 < GrDebugGL::getInstance()->getPackRowLength()) {
139 pixelsInRow = GrDebugGL::getInstance()->getPackRowLength();
140 }
141
142 GrGLint componentsPerPixel = 0;
143
144 switch (format) {
145 case GR_GL_RGBA:
146 // fallthrough
147 case GR_GL_BGRA:
148 componentsPerPixel = 4;
149 break;
150 case GR_GL_RGB:
151 componentsPerPixel = 3;
152 break;
153 case GR_GL_RED:
154 componentsPerPixel = 1;
155 break;
156 default:
157 GrAlwaysAssert(false);
158 break;
159 }
160
161 GrGLint alignment = 4; // the pack alignment (one of 1, 2, 4 or 8)
162 // Ganesh currently doesn't support setting GR_GL_PACK_ALIGNMENT
163
164 GrGLint componentSize = 0; // size (in bytes) of a single component
165
166 switch (type) {
167 case GR_GL_UNSIGNED_BYTE:
168 componentSize = 1;
169 break;
170 default:
171 GrAlwaysAssert(false);
172 break;
173 }
174
175 GrGLint rowStride = 0; // number of components (not bytes) to skip
176 if (componentSize >= alignment) {
177 rowStride = componentsPerPixel * pixelsInRow;
178 } else {
179 float fTemp =
180 sk_float_ceil(componentSize * componentsPerPixel * pixelsInRow /
181 static_cast<float>(alignment));
182 rowStride = static_cast<GrGLint>(alignment * fTemp / componentSize);
183 }
184
185 GrGLchar *scanline = static_cast<GrGLchar *>(pixels);
186 for (int y = 0; y < height; ++y) {
187 memset(scanline, 0, componentsPerPixel * componentSize * width);
188 scanline += rowStride;
189 }
190 }
191
192 GrGLvoid GR_GL_FUNCTION_TYPE debugGLUseProgram(GrGLuint programID) {
193
194 // A programID of 0 is legal
195 GrProgramObj *program = GR_FIND(programID,
196 GrProgramObj,
197 GrDebugGL::kProgram_ObjTypes);
198
199 GrDebugGL::getInstance()->useProgram(program);
200 }
201
202 GrGLvoid GR_GL_FUNCTION_TYPE debugGLBindFramebuffer(GrGLenum target,
203 GrGLuint frameBufferID) {
204
205 GrAlwaysAssert(GR_GL_FRAMEBUFFER == target ||
206 GR_GL_READ_FRAMEBUFFER == target ||
207 GR_GL_DRAW_FRAMEBUFFER);
208
209 // a frameBufferID of 0 is acceptable - it binds to the default
210 // frame buffer
211 GrFrameBufferObj *frameBuffer = GR_FIND(frameBufferID,
212 GrFrameBufferObj,
213 GrDebugGL::kFrameBuffer_ObjTypes);
214
215 GrDebugGL::getInstance()->setFrameBuffer(frameBuffer);
216 }
217
218 GrGLvoid GR_GL_FUNCTION_TYPE debugGLBindRenderbuffer(GrGLenum target, GrGLuint renderBufferID) {
219
220 GrAlwaysAssert(GR_GL_RENDERBUFFER == target);
221
222 // a renderBufferID of 0 is acceptable - it unbinds the bound render buffer
223 GrRenderBufferObj *renderBuffer = GR_FIND(renderBufferID,
224 GrRenderBufferObj,
225 GrDebugGL::kRenderBuffer_ObjTypes);
226
227 GrDebugGL::getInstance()->setRenderBuffer(renderBuffer);
228 }
229
230 GrGLvoid GR_GL_FUNCTION_TYPE debugGLDeleteTextures(GrGLsizei n, const GrGLuint* textures) {
231
232 // first potentially unbind the texture
233 // TODO: move this into GrDebugGL as unBindTexture?
234 for (unsigned int i = 0;
235 i < GrDebugGL::getInstance()->getMaxTextureUnits();
236 ++i) {
237 GrTextureUnitObj *pTU = GrDebugGL::getInstance()->getTextureUnit(i);
238
239 if (pTU->getTexture()) {
240 for (int j = 0; j < n; ++j) {
241
242 if (textures[j] == pTU->getTexture()->getID()) {
243 // this ID is the current texture - revert the binding to 0
244 pTU->setTexture(NULL);
245 }
246 }
247 }
248 }
249
250 // TODO: fuse the following block with DeleteRenderBuffers?
251 // Open GL will remove a deleted render buffer from the active
252 // frame buffer but not from any other frame buffer
253 if (GrDebugGL::getInstance()->getFrameBuffer()) {
254
255 GrFrameBufferObj *frameBuffer = GrDebugGL::getInstance()->getFrameBuffer();
256
257 for (int i = 0; i < n; ++i) {
258
259 if (NULL != frameBuffer->getColor() &&
260 textures[i] == frameBuffer->getColor()->getID()) {
261 frameBuffer->setColor(NULL);
262 }
263 if (NULL != frameBuffer->getDepth() &&
264 textures[i] == frameBuffer->getDepth()->getID()) {
265 frameBuffer->setDepth(NULL);
266 }
267 if (NULL != frameBuffer->getStencil() &&
268 textures[i] == frameBuffer->getStencil()->getID()) {
269 frameBuffer->setStencil(NULL);
270 }
271 }
272 }
273
274 // then actually "delete" the buffers
275 for (int i = 0; i < n; ++i) {
276 GrTextureObj *buffer = GR_FIND(textures[i],
277 GrTextureObj,
278 GrDebugGL::kTexture_ObjTypes);
279 GrAlwaysAssert(buffer);
280
281 // OpenGL gives no guarantees if a texture is deleted while attached to
282 // something other than the currently bound frame buffer
283 GrAlwaysAssert(!buffer->getBound());
284
285 GrAlwaysAssert(!buffer->getDeleted());
286 buffer->deleteAction();
287 }
288
289 }
290
291 GrGLvoid GR_GL_FUNCTION_TYPE debugGLDeleteFramebuffers(GrGLsizei n,
292 const GrGLuint *frameBuffers) {
293
294 // first potentially unbind the buffers
295 if (GrDebugGL::getInstance()->getFrameBuffer()) {
296 for (int i = 0; i < n; ++i) {
297
298 if (frameBuffers[i] ==
299 GrDebugGL::getInstance()->getFrameBuffer()->getID()) {
300 // this ID is the current frame buffer - rebind to the default
301 GrDebugGL::getInstance()->setFrameBuffer(NULL);
302 }
303 }
304 }
305
306 // then actually "delete" the buffers
307 for (int i = 0; i < n; ++i) {
308 GrFrameBufferObj *buffer = GR_FIND(frameBuffers[i],
309 GrFrameBufferObj,
310 GrDebugGL::kFrameBuffer_ObjTypes);
311 GrAlwaysAssert(buffer);
312
313 GrAlwaysAssert(!buffer->getDeleted());
314 buffer->deleteAction();
315 }
316 }
317
318 GrGLvoid GR_GL_FUNCTION_TYPE debugGLDeleteRenderbuffers(GrGLsizei n,
319 const GrGLuint *renderBuffers) {
320
321 // first potentially unbind the buffers
322 if (GrDebugGL::getInstance()->getRenderBuffer()) {
323 for (int i = 0; i < n; ++i) {
324
325 if (renderBuffers[i] ==
326 GrDebugGL::getInstance()->getRenderBuffer()->getID()) {
327 // this ID is the current render buffer - make no
328 // render buffer be bound
329 GrDebugGL::getInstance()->setRenderBuffer(NULL);
330 }
331 }
332 }
333
334 // TODO: fuse the following block with DeleteTextures?
335 // Open GL will remove a deleted render buffer from the active frame
336 // buffer but not from any other frame buffer
337 if (GrDebugGL::getInstance()->getFrameBuffer()) {
338
339 GrFrameBufferObj *frameBuffer =
340 GrDebugGL::getInstance()->getFrameBuffer();
341
342 for (int i = 0; i < n; ++i) {
343
344 if (NULL != frameBuffer->getColor() &&
345 renderBuffers[i] == frameBuffer->getColor()->getID()) {
346 frameBuffer->setColor(NULL);
347 }
348 if (NULL != frameBuffer->getDepth() &&
349 renderBuffers[i] == frameBuffer->getDepth()->getID()) {
350 frameBuffer->setDepth(NULL);
351 }
352 if (NULL != frameBuffer->getStencil() &&
353 renderBuffers[i] == frameBuffer->getStencil()->getID()) {
354 frameBuffer->setStencil(NULL);
355 }
356 }
357 }
358
359 // then actually "delete" the buffers
360 for (int i = 0; i < n; ++i) {
361 GrRenderBufferObj *buffer = GR_FIND(renderBuffers[i],
362 GrRenderBufferObj,
363 GrDebugGL::kRenderBuffer_ObjTypes);
364 GrAlwaysAssert(buffer);
365
366 // OpenGL gives no guarantees if a render buffer is deleted
367 // while attached to something other than the currently
368 // bound frame buffer
369 GrAlwaysAssert(!buffer->getColorBound());
370 GrAlwaysAssert(!buffer->getDepthBound());
371 // However, at GrContext destroy time we release all GrRsources and so stencil buffers
372 // may get deleted before FBOs that refer to them.
373 //GrAlwaysAssert(!buffer->getStencilBound());
374
375 GrAlwaysAssert(!buffer->getDeleted());
376 buffer->deleteAction();
377 }
378 }
379
380 GrGLvoid GR_GL_FUNCTION_TYPE debugGLFramebufferRenderbuffer(GrGLenum target,
381 GrGLenum attachment,
382 GrGLenum renderbuffertarget,
383 GrGLuint renderBufferID) {
384
385 GrAlwaysAssert(GR_GL_FRAMEBUFFER == target);
386 GrAlwaysAssert(GR_GL_COLOR_ATTACHMENT0 == attachment ||
387 GR_GL_DEPTH_ATTACHMENT == attachment ||
388 GR_GL_STENCIL_ATTACHMENT == attachment);
389 GrAlwaysAssert(GR_GL_RENDERBUFFER == renderbuffertarget);
390
391 GrFrameBufferObj *framebuffer = GrDebugGL::getInstance()->getFrameBuffer();
392 // A render buffer cannot be attached to the default framebuffer
393 GrAlwaysAssert(NULL != framebuffer);
394
395 // a renderBufferID of 0 is acceptable - it unbinds the current
396 // render buffer
397 GrRenderBufferObj *renderbuffer = GR_FIND(renderBufferID,
398 GrRenderBufferObj,
399 GrDebugGL::kRenderBuffer_ObjTypes);
400
401 switch (attachment) {
402 case GR_GL_COLOR_ATTACHMENT0:
403 framebuffer->setColor(renderbuffer);
404 break;
405 case GR_GL_DEPTH_ATTACHMENT:
406 framebuffer->setDepth(renderbuffer);
407 break;
408 case GR_GL_STENCIL_ATTACHMENT:
409 framebuffer->setStencil(renderbuffer);
410 break;
411 default:
412 GrAlwaysAssert(false);
413 break;
414 };
415
416 }
417
418 ////////////////////////////////////////////////////////////////////////////////
419 GrGLvoid GR_GL_FUNCTION_TYPE debugGLFramebufferTexture2D(GrGLenum target,
420 GrGLenum attachment,
421 GrGLenum textarget,
422 GrGLuint textureID,
423 GrGLint level) {
424
425 GrAlwaysAssert(GR_GL_FRAMEBUFFER == target);
426 GrAlwaysAssert(GR_GL_COLOR_ATTACHMENT0 == attachment ||
427 GR_GL_DEPTH_ATTACHMENT == attachment ||
428 GR_GL_STENCIL_ATTACHMENT == attachment);
429 GrAlwaysAssert(GR_GL_TEXTURE_2D == textarget);
430
431 GrFrameBufferObj *framebuffer = GrDebugGL::getInstance()->getFrameBuffer();
432 // A texture cannot be attached to the default framebuffer
433 GrAlwaysAssert(NULL != framebuffer);
434
435 // A textureID of 0 is allowed - it unbinds the currently bound texture
436 GrTextureObj *texture = GR_FIND(textureID, GrTextureObj,
437 GrDebugGL::kTexture_ObjTypes);
438 if (texture) {
439 // The texture shouldn't be bound to a texture unit - this
440 // could lead to a feedback loop
441 GrAlwaysAssert(!texture->getBound());
442 }
443
444 GrAlwaysAssert(0 == level);
445
446 switch (attachment) {
447 case GR_GL_COLOR_ATTACHMENT0:
448 framebuffer->setColor(texture);
449 break;
450 case GR_GL_DEPTH_ATTACHMENT:
451 framebuffer->setDepth(texture);
452 break;
453 case GR_GL_STENCIL_ATTACHMENT:
454 framebuffer->setStencil(texture);
455 break;
456 default:
457 GrAlwaysAssert(false);
458 break;
459 };
460 }
461
462 GrGLuint GR_GL_FUNCTION_TYPE debugGLCreateProgram() {
463
464 GrProgramObj *program = GR_CREATE(GrProgramObj,
465 GrDebugGL::kProgram_ObjTypes);
466
467 return program->getID();
468 }
469
470 GrGLuint GR_GL_FUNCTION_TYPE debugGLCreateShader(GrGLenum type) {
471
472 GrAlwaysAssert(GR_GL_VERTEX_SHADER == type ||
473 GR_GL_FRAGMENT_SHADER == type);
474
475 GrShaderObj *shader = GR_CREATE(GrShaderObj, GrDebugGL::kShader_ObjTypes);
476 shader->setType(type);
477
478 return shader->getID();
479 }
480
481 GrGLvoid GR_GL_FUNCTION_TYPE debugGLDeleteProgram(GrGLuint programID) {
482
483 GrProgramObj *program = GR_FIND(programID,
484 GrProgramObj,
485 GrDebugGL::kProgram_ObjTypes);
486 GrAlwaysAssert(program);
487
488 if (program->getRefCount()) {
489 // someone is still using this program so we can't delete it here
490 program->setMarkedForDeletion();
491 } else {
492 program->deleteAction();
493 }
494 }
495
496 GrGLvoid GR_GL_FUNCTION_TYPE debugGLDeleteShader(GrGLuint shaderID) {
497
498 GrShaderObj *shader = GR_FIND(shaderID,
499 GrShaderObj,
500 GrDebugGL::kShader_ObjTypes);
501 GrAlwaysAssert(shader);
502
503 if (shader->getRefCount()) {
504 // someone is still using this shader so we can't delete it here
505 shader->setMarkedForDeletion();
506 } else {
507 shader->deleteAction();
508 }
509 }
510
511 GrGLvoid debugGenObjs(GrDebugGL::GrObjTypes type,
512 GrGLsizei n,
513 GrGLuint* ids) {
514
515 for (int i = 0; i < n; ++i) {
516 GrFakeRefObj *obj = GrDebugGL::getInstance()->createObj(type);
517 GrAlwaysAssert(obj);
518 ids[i] = obj->getID();
519 }
520 }
521
522 GrGLvoid GR_GL_FUNCTION_TYPE debugGLGenBuffers(GrGLsizei n, GrGLuint* ids) {
523 debugGenObjs(GrDebugGL::kBuffer_ObjTypes, n, ids);
524 }
525
526 GrGLvoid GR_GL_FUNCTION_TYPE debugGLGenerateMipmap(GrGLenum level) {
527 }
528
529 GrGLvoid GR_GL_FUNCTION_TYPE debugGLGenFramebuffers(GrGLsizei n,
530 GrGLuint* ids) {
531 debugGenObjs(GrDebugGL::kFrameBuffer_ObjTypes, n, ids);
532 }
533
534 GrGLvoid GR_GL_FUNCTION_TYPE debugGLGenRenderbuffers(GrGLsizei n,
535 GrGLuint* ids) {
536 debugGenObjs(GrDebugGL::kRenderBuffer_ObjTypes, n, ids);
537 }
538
539 GrGLvoid GR_GL_FUNCTION_TYPE debugGLGenTextures(GrGLsizei n, GrGLuint* ids) {
540 debugGenObjs(GrDebugGL::kTexture_ObjTypes, n, ids);
541 }
542
543 GrGLvoid GR_GL_FUNCTION_TYPE debugGLGenVertexArrays(GrGLsizei n, GrGLuint* ids) {
544 debugGenObjs(GrDebugGL::kVertexArray_ObjTypes, n, ids);
545 }
546
547 GrGLvoid GR_GL_FUNCTION_TYPE debugGLDeleteVertexArrays(GrGLsizei n, const GrGLuint* ids) {
548 for (GrGLsizei i = 0; i < n; ++i) {
549 GrVertexArrayObj* array =
550 GR_FIND(ids[i], GrVertexArrayObj, GrDebugGL::kVertexArray_ObjTypes);
551 GrAlwaysAssert(array);
552
553 // Deleting the current vertex array binds object 0
554 if (GrDebugGL::getInstance()->getVertexArray() == array) {
555 GrDebugGL::getInstance()->setVertexArray(NULL);
556 }
557
558 if (array->getRefCount()) {
559 // someone is still using this vertex array so we can't delete it here
560 array->setMarkedForDeletion();
561 } else {
562 array->deleteAction();
563 }
564 }
565 }
566
567 GrGLvoid GR_GL_FUNCTION_TYPE debugGLBindVertexArray(GrGLuint id) {
568 GrVertexArrayObj* array = GR_FIND(id, GrVertexArrayObj, GrDebugGL::kVertexArray_ObjTypes);
569 GrAlwaysAssert((0 == id) || NULL != array);
570 GrDebugGL::getInstance()->setVertexArray(array);
571 }
572
573 GrGLvoid GR_GL_FUNCTION_TYPE debugGLBindBuffer(GrGLenum target, GrGLuint bufferID) {
574 GrAlwaysAssert(GR_GL_ARRAY_BUFFER == target || GR_GL_ELEMENT_ARRAY_BUFFER == target);
575
576 GrBufferObj *buffer = GR_FIND(bufferID,
577 GrBufferObj,
578 GrDebugGL::kBuffer_ObjTypes);
579 // 0 is a permissible bufferID - it unbinds the current buffer
580
581 switch (target) {
582 case GR_GL_ARRAY_BUFFER:
583 GrDebugGL::getInstance()->setArrayBuffer(buffer);
584 break;
585 case GR_GL_ELEMENT_ARRAY_BUFFER:
586 GrDebugGL::getInstance()->setElementArrayBuffer(buffer);
587 break;
588 default:
589 GrCrash("Unexpected target to glBindBuffer");
590 break;
591 }
592 }
593
594 // deleting a bound buffer has the side effect of binding 0
595 GrGLvoid GR_GL_FUNCTION_TYPE debugGLDeleteBuffers(GrGLsizei n, const GrGLuint* ids) {
596 // first potentially unbind the buffers
597 for (int i = 0; i < n; ++i) {
598
599 if (GrDebugGL::getInstance()->getArrayBuffer() &&
600 ids[i] == GrDebugGL::getInstance()->getArrayBuffer()->getID()) {
601 // this ID is the current array buffer
602 GrDebugGL::getInstance()->setArrayBuffer(NULL);
603 }
604 if (GrDebugGL::getInstance()->getElementArrayBuffer() &&
605 ids[i] ==
606 GrDebugGL::getInstance()->getElementArrayBuffer()->getID()) {
607 // this ID is the current element array buffer
608 GrDebugGL::getInstance()->setElementArrayBuffer(NULL);
609 }
610 }
611
612 // then actually "delete" the buffers
613 for (int i = 0; i < n; ++i) {
614 GrBufferObj *buffer = GR_FIND(ids[i],
615 GrBufferObj,
616 GrDebugGL::kBuffer_ObjTypes);
617 GrAlwaysAssert(buffer);
618
619 GrAlwaysAssert(!buffer->getDeleted());
620 buffer->deleteAction();
621 }
622 }
623
624 // map a buffer to the caller's address space
625 GrGLvoid* GR_GL_FUNCTION_TYPE debugGLMapBuffer(GrGLenum target, GrGLenum access) {
626
627 GrAlwaysAssert(GR_GL_ARRAY_BUFFER == target ||
628 GR_GL_ELEMENT_ARRAY_BUFFER == target);
629 // GR_GL_READ_ONLY == access || || GR_GL_READ_WRIT == access);
630 GrAlwaysAssert(GR_GL_WRITE_ONLY == access);
631
632 GrBufferObj *buffer = NULL;
633 switch (target) {
634 case GR_GL_ARRAY_BUFFER:
635 buffer = GrDebugGL::getInstance()->getArrayBuffer();
636 break;
637 case GR_GL_ELEMENT_ARRAY_BUFFER:
638 buffer = GrDebugGL::getInstance()->getElementArrayBuffer();
639 break;
640 default:
641 GrCrash("Unexpected target to glMapBuffer");
642 break;
643 }
644
645 if (buffer) {
646 GrAlwaysAssert(!buffer->getMapped());
647 buffer->setMapped();
648 return buffer->getDataPtr();
649 }
650
651 GrAlwaysAssert(false);
652 return NULL; // no buffer bound to the target
653 }
654
655 // remove a buffer from the caller's address space
656 // TODO: check if the "access" method from "glMapBuffer" was honored
657 GrGLboolean GR_GL_FUNCTION_TYPE debugGLUnmapBuffer(GrGLenum target) {
658
659 GrAlwaysAssert(GR_GL_ARRAY_BUFFER == target ||
660 GR_GL_ELEMENT_ARRAY_BUFFER == target);
661
662 GrBufferObj *buffer = NULL;
663 switch (target) {
664 case GR_GL_ARRAY_BUFFER:
665 buffer = GrDebugGL::getInstance()->getArrayBuffer();
666 break;
667 case GR_GL_ELEMENT_ARRAY_BUFFER:
668 buffer = GrDebugGL::getInstance()->getElementArrayBuffer();
669 break;
670 default:
671 GrCrash("Unexpected target to glUnmapBuffer");
672 break;
673 }
674
675 if (buffer) {
676 GrAlwaysAssert(buffer->getMapped());
677 buffer->resetMapped();
678 return GR_GL_TRUE;
679 }
680
681 GrAlwaysAssert(false);
682 return GR_GL_FALSE; // GR_GL_INVALID_OPERATION;
683 }
684
685 GrGLvoid GR_GL_FUNCTION_TYPE debugGLGetBufferParameteriv(GrGLenum target,
686 GrGLenum value,
687 GrGLint* params) {
688
689 GrAlwaysAssert(GR_GL_ARRAY_BUFFER == target ||
690 GR_GL_ELEMENT_ARRAY_BUFFER == target);
691 GrAlwaysAssert(GR_GL_BUFFER_SIZE == value ||
692 GR_GL_BUFFER_USAGE == value);
693
694 GrBufferObj *buffer = NULL;
695 switch (target) {
696 case GR_GL_ARRAY_BUFFER:
697 buffer = GrDebugGL::getInstance()->getArrayBuffer();
698 break;
699 case GR_GL_ELEMENT_ARRAY_BUFFER:
700 buffer = GrDebugGL::getInstance()->getElementArrayBuffer();
701 break;
702 }
703
704 GrAlwaysAssert(buffer);
705
706 switch (value) {
707 case GR_GL_BUFFER_MAPPED:
708 *params = GR_GL_FALSE;
709 if (buffer)
710 *params = buffer->getMapped() ? GR_GL_TRUE : GR_GL_FALSE;
711 break;
712 case GR_GL_BUFFER_SIZE:
713 *params = 0;
714 if (buffer)
715 *params = buffer->getSize();
716 break;
717 case GR_GL_BUFFER_USAGE:
718 *params = GR_GL_STATIC_DRAW;
719 if (buffer)
720 *params = buffer->getUsage();
721 break;
722 default:
723 GrCrash("Unexpected value to glGetBufferParamateriv");
724 break;
725 }
726 };
727 } // end of namespace
728
729 ////////////////////////////////////////////////////////////////////////////////
730 struct GrDebugGLInterface : public GrGLInterface {
731
732 public:
733 SK_DECLARE_INST_COUNT(GrDebugGLInterface)
734
735 GrDebugGLInterface()
736 : fWrapped(NULL) {
737 GrDebugGL::staticRef();
738 }
739
740 virtual ~GrDebugGLInterface() {
741 GrDebugGL::staticUnRef();
742 }
743
744 void setWrapped(GrGLInterface *interface) {
745 fWrapped.reset(interface);
746 }
747
748 // TODO: there are some issues w/ wrapping another GL interface inside the
749 // debug interface:
750 // Since none of the "gl" methods are member functions they don't get
751 // a "this" pointer through which to access "fWrapped"
752 // This could be worked around by having all of them access the
753 // "glInterface" pointer - i.e., treating the debug interface as a
754 // true singleton
755 //
756 // The problem with this is that we also want to handle OpenGL
757 // contexts. The natural way to do this is to have multiple debug
758 // interfaces. Each of which represents a separate context. The
759 // static ID count would still uniquify IDs across all of them.
760 // The problem then is that we couldn't treat the debug GL
761 // interface as a singleton (since there would be one for each
762 // context).
763 //
764 // The solution to this is probably to alter SkDebugGlContext's
765 // "makeCurrent" method to make a call like "makeCurrent(this)" to
766 // the debug GL interface (assuming that the application will create
767 // multiple SkGLContextHelper's) to let it switch between the active
768 // context. Everything in the GrDebugGL object would then need to be
769 // moved to a GrContextObj and the GrDebugGL object would just switch
770 // between them. Note that this approach would also require that
771 // SkDebugGLContext wrap an arbitrary other context
772 // and then pass the wrapped interface to the debug GL interface.
773
774 protected:
775 private:
776
777 SkAutoTUnref<GrGLInterface> fWrapped;
778
779 typedef GrGLInterface INHERITED;
780 };
781
782 ////////////////////////////////////////////////////////////////////////////////
783 const GrGLInterface* GrGLCreateDebugInterface() {
784 GrGLInterface* interface = SkNEW(GrDebugGLInterface);
785
786 interface->fStandard = kGL_GrGLStandard;
787
788 GrGLInterface::Functions* functions = &interface->fFunctions;
789 functions->fActiveTexture = debugGLActiveTexture;
790 functions->fAttachShader = debugGLAttachShader;
791 functions->fBeginQuery = debugGLBeginQuery;
792 functions->fBindAttribLocation = debugGLBindAttribLocation;
793 functions->fBindBuffer = debugGLBindBuffer;
794 functions->fBindFragDataLocation = noOpGLBindFragDataLocation;
795 functions->fBindTexture = debugGLBindTexture;
796 functions->fBindVertexArray = debugGLBindVertexArray;
797 functions->fBlendColor = noOpGLBlendColor;
798 functions->fBlendFunc = noOpGLBlendFunc;
799 functions->fBufferData = debugGLBufferData;
800 functions->fBufferSubData = noOpGLBufferSubData;
801 functions->fClear = noOpGLClear;
802 functions->fClearColor = noOpGLClearColor;
803 functions->fClearStencil = noOpGLClearStencil;
804 functions->fColorMask = noOpGLColorMask;
805 functions->fCompileShader = noOpGLCompileShader;
806 functions->fCompressedTexImage2D = noOpGLCompressedTexImage2D;
807 functions->fCopyTexSubImage2D = noOpGLCopyTexSubImage2D;
808 functions->fCreateProgram = debugGLCreateProgram;
809 functions->fCreateShader = debugGLCreateShader;
810 functions->fCullFace = noOpGLCullFace;
811 functions->fDeleteBuffers = debugGLDeleteBuffers;
812 functions->fDeleteProgram = debugGLDeleteProgram;
813 functions->fDeleteQueries = noOpGLDeleteIds;
814 functions->fDeleteShader = debugGLDeleteShader;
815 functions->fDeleteTextures = debugGLDeleteTextures;
816 functions->fDeleteVertexArrays = debugGLDeleteVertexArrays;
817 functions->fDepthMask = noOpGLDepthMask;
818 functions->fDisable = noOpGLDisable;
819 functions->fDisableVertexAttribArray = noOpGLDisableVertexAttribArray;
820 functions->fDrawArrays = noOpGLDrawArrays;
821 functions->fDrawBuffer = noOpGLDrawBuffer;
822 functions->fDrawBuffers = noOpGLDrawBuffers;
823 functions->fDrawElements = noOpGLDrawElements;
824 functions->fEnable = noOpGLEnable;
825 functions->fEnableVertexAttribArray = noOpGLEnableVertexAttribArray;
826 functions->fEndQuery = noOpGLEndQuery;
827 functions->fFinish = noOpGLFinish;
828 functions->fFlush = noOpGLFlush;
829 functions->fFrontFace = noOpGLFrontFace;
830 functions->fGenerateMipmap = debugGLGenerateMipmap;
831 functions->fGenBuffers = debugGLGenBuffers;
832 functions->fGenQueries = noOpGLGenIds;
833 functions->fGenTextures = debugGLGenTextures;
834 functions->fGetBufferParameteriv = debugGLGetBufferParameteriv;
835 functions->fGetError = noOpGLGetError;
836 functions->fGetIntegerv = noOpGLGetIntegerv;
837 functions->fGetQueryObjecti64v = noOpGLGetQueryObjecti64v;
838 functions->fGetQueryObjectiv = noOpGLGetQueryObjectiv;
839 functions->fGetQueryObjectui64v = noOpGLGetQueryObjectui64v;
840 functions->fGetQueryObjectuiv = noOpGLGetQueryObjectuiv;
841 functions->fGetQueryiv = noOpGLGetQueryiv;
842 functions->fGetProgramInfoLog = noOpGLGetInfoLog;
843 functions->fGetProgramiv = noOpGLGetShaderOrProgramiv;
844 functions->fGetShaderInfoLog = noOpGLGetInfoLog;
845 functions->fGetShaderiv = noOpGLGetShaderOrProgramiv;
846 functions->fGetString = noOpGLGetString;
847 functions->fGetStringi = noOpGLGetStringi;
848 functions->fGetTexLevelParameteriv = noOpGLGetTexLevelParameteriv;
849 functions->fGetUniformLocation = noOpGLGetUniformLocation;
850 functions->fGenVertexArrays = debugGLGenVertexArrays;
851 functions->fLoadIdentity = noOpGLLoadIdentity;
852 functions->fLoadMatrixf = noOpGLLoadMatrixf;
853 functions->fLineWidth = noOpGLLineWidth;
854 functions->fLinkProgram = noOpGLLinkProgram;
855 functions->fMatrixMode = noOpGLMatrixMode;
856 functions->fPixelStorei = debugGLPixelStorei;
857 functions->fQueryCounter = noOpGLQueryCounter;
858 functions->fReadBuffer = noOpGLReadBuffer;
859 functions->fReadPixels = debugGLReadPixels;
860 functions->fScissor = noOpGLScissor;
861 functions->fShaderSource = noOpGLShaderSource;
862 functions->fStencilFunc = noOpGLStencilFunc;
863 functions->fStencilFuncSeparate = noOpGLStencilFuncSeparate;
864 functions->fStencilMask = noOpGLStencilMask;
865 functions->fStencilMaskSeparate = noOpGLStencilMaskSeparate;
866 functions->fStencilOp = noOpGLStencilOp;
867 functions->fStencilOpSeparate = noOpGLStencilOpSeparate;
868 functions->fTexGenfv = noOpGLTexGenfv;
869 functions->fTexGeni = noOpGLTexGeni;
870 functions->fTexImage2D = noOpGLTexImage2D;
871 functions->fTexParameteri = noOpGLTexParameteri;
872 functions->fTexParameteriv = noOpGLTexParameteriv;
873 functions->fTexSubImage2D = noOpGLTexSubImage2D;
874 functions->fTexStorage2D = noOpGLTexStorage2D;
875 functions->fDiscardFramebuffer = noOpGLDiscardFramebuffer;
876 functions->fUniform1f = noOpGLUniform1f;
877 functions->fUniform1i = noOpGLUniform1i;
878 functions->fUniform1fv = noOpGLUniform1fv;
879 functions->fUniform1iv = noOpGLUniform1iv;
880 functions->fUniform2f = noOpGLUniform2f;
881 functions->fUniform2i = noOpGLUniform2i;
882 functions->fUniform2fv = noOpGLUniform2fv;
883 functions->fUniform2iv = noOpGLUniform2iv;
884 functions->fUniform3f = noOpGLUniform3f;
885 functions->fUniform3i = noOpGLUniform3i;
886 functions->fUniform3fv = noOpGLUniform3fv;
887 functions->fUniform3iv = noOpGLUniform3iv;
888 functions->fUniform4f = noOpGLUniform4f;
889 functions->fUniform4i = noOpGLUniform4i;
890 functions->fUniform4fv = noOpGLUniform4fv;
891 functions->fUniform4iv = noOpGLUniform4iv;
892 functions->fUniformMatrix2fv = noOpGLUniformMatrix2fv;
893 functions->fUniformMatrix3fv = noOpGLUniformMatrix3fv;
894 functions->fUniformMatrix4fv = noOpGLUniformMatrix4fv;
895 functions->fUseProgram = debugGLUseProgram;
896 functions->fVertexAttrib4fv = noOpGLVertexAttrib4fv;
897 functions->fVertexAttribPointer = noOpGLVertexAttribPointer;
898 functions->fViewport = noOpGLViewport;
899 functions->fBindFramebuffer = debugGLBindFramebuffer;
900 functions->fBindRenderbuffer = debugGLBindRenderbuffer;
901 functions->fCheckFramebufferStatus = noOpGLCheckFramebufferStatus;
902 functions->fDeleteFramebuffers = debugGLDeleteFramebuffers;
903 functions->fDeleteRenderbuffers = debugGLDeleteRenderbuffers;
904 functions->fFramebufferRenderbuffer = debugGLFramebufferRenderbuffer;
905 functions->fFramebufferTexture2D = debugGLFramebufferTexture2D;
906 functions->fGenFramebuffers = debugGLGenFramebuffers;
907 functions->fGenRenderbuffers = debugGLGenRenderbuffers;
908 functions->fGetFramebufferAttachmentParameteriv =
909 noOpGLGetFramebufferAttachmentParameteriv;
910 functions->fGetRenderbufferParameteriv = noOpGLGetRenderbufferParameteriv;
911 functions->fRenderbufferStorage = noOpGLRenderbufferStorage;
912 functions->fRenderbufferStorageMultisample =
913 noOpGLRenderbufferStorageMultisample;
914 functions->fBlitFramebuffer = noOpGLBlitFramebuffer;
915 functions->fResolveMultisampleFramebuffer =
916 noOpGLResolveMultisampleFramebuffer;
917 functions->fMapBuffer = debugGLMapBuffer;
918 functions->fUnmapBuffer = debugGLUnmapBuffer;
919 functions->fBindFragDataLocationIndexed =
920 noOpGLBindFragDataLocationIndexed;
921
922 interface->fExtensions.init(kGL_GrGLStandard, functions->fGetString, functions->fGetStringi,
923 functions->fGetIntegerv);
924
925 return interface;
926 }

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