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comparison: gfx/skia/trunk/src/gpu/gl/GrGLInterface.cpp

gfx/skia/trunk/src/gpu/gl/GrGLInterface.cpp

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TOR_BUG_3246
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1 /*
2 * Copyright 2011 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8
9 #include "gl/GrGLInterface.h"
10 #include "gl/GrGLExtensions.h"
11 #include "gl/GrGLUtil.h"
12
13 #include <stdio.h>
14
15 #if GR_GL_PER_GL_FUNC_CALLBACK
16 namespace {
17 void GrGLDefaultInterfaceCallback(const GrGLInterface*) {}
18 }
19 #endif
20
21 const GrGLInterface* GrGLInterfaceAddTestDebugMarker(const GrGLInterface* interface,
22 GrGLInsertEventMarkerProc insertEventMarkerFn,
23 GrGLPushGroupMarkerProc pushGroupMarkerFn,
24 GrGLPopGroupMarkerProc popGroupMarkerFn) {
25 GrGLInterface* newInterface = GrGLInterface::NewClone(interface);
26
27 if (!newInterface->fExtensions.has("GL_EXT_debug_marker")) {
28 newInterface->fExtensions.add("GL_EXT_debug_marker");
29 }
30
31 newInterface->fFunctions.fInsertEventMarker = insertEventMarkerFn;
32 newInterface->fFunctions.fPushGroupMarker = pushGroupMarkerFn;
33 newInterface->fFunctions.fPopGroupMarker = popGroupMarkerFn;
34
35 return newInterface;
36 }
37
38 const GrGLInterface* GrGLInterfaceRemoveNVPR(const GrGLInterface* interface) {
39 GrGLInterface* newInterface = GrGLInterface::NewClone(interface);
40
41 newInterface->fExtensions.remove("GL_NV_path_rendering");
42
43 newInterface->fFunctions.fPathCommands = NULL;
44 newInterface->fFunctions.fPathCoords = NULL;
45 newInterface->fFunctions.fPathSubCommands = NULL;
46 newInterface->fFunctions.fPathSubCoords = NULL;
47 newInterface->fFunctions.fPathString = NULL;
48 newInterface->fFunctions.fPathGlyphs = NULL;
49 newInterface->fFunctions.fPathGlyphRange = NULL;
50 newInterface->fFunctions.fWeightPaths = NULL;
51 newInterface->fFunctions.fCopyPath = NULL;
52 newInterface->fFunctions.fInterpolatePaths = NULL;
53 newInterface->fFunctions.fTransformPath = NULL;
54 newInterface->fFunctions.fPathParameteriv = NULL;
55 newInterface->fFunctions.fPathParameteri = NULL;
56 newInterface->fFunctions.fPathParameterfv = NULL;
57 newInterface->fFunctions.fPathParameterf = NULL;
58 newInterface->fFunctions.fPathDashArray = NULL;
59 newInterface->fFunctions.fGenPaths = NULL;
60 newInterface->fFunctions.fDeletePaths = NULL;
61 newInterface->fFunctions.fIsPath = NULL;
62 newInterface->fFunctions.fPathStencilFunc = NULL;
63 newInterface->fFunctions.fPathStencilDepthOffset = NULL;
64 newInterface->fFunctions.fStencilFillPath = NULL;
65 newInterface->fFunctions.fStencilStrokePath = NULL;
66 newInterface->fFunctions.fStencilFillPathInstanced = NULL;
67 newInterface->fFunctions.fStencilStrokePathInstanced = NULL;
68 newInterface->fFunctions.fPathCoverDepthFunc = NULL;
69 newInterface->fFunctions.fPathColorGen = NULL;
70 newInterface->fFunctions.fPathTexGen = NULL;
71 newInterface->fFunctions.fPathFogGen = NULL;
72 newInterface->fFunctions.fCoverFillPath = NULL;
73 newInterface->fFunctions.fCoverStrokePath = NULL;
74 newInterface->fFunctions.fCoverFillPathInstanced = NULL;
75 newInterface->fFunctions.fCoverStrokePathInstanced = NULL;
76 newInterface->fFunctions.fGetPathParameteriv = NULL;
77 newInterface->fFunctions.fGetPathParameterfv = NULL;
78 newInterface->fFunctions.fGetPathCommands = NULL;
79 newInterface->fFunctions.fGetPathCoords = NULL;
80 newInterface->fFunctions.fGetPathDashArray = NULL;
81 newInterface->fFunctions.fGetPathMetrics = NULL;
82 newInterface->fFunctions.fGetPathMetricRange = NULL;
83 newInterface->fFunctions.fGetPathSpacing = NULL;
84 newInterface->fFunctions.fGetPathColorGeniv = NULL;
85 newInterface->fFunctions.fGetPathColorGenfv = NULL;
86 newInterface->fFunctions.fGetPathTexGeniv = NULL;
87 newInterface->fFunctions.fGetPathTexGenfv = NULL;
88 newInterface->fFunctions.fIsPointInFillPath = NULL;
89 newInterface->fFunctions.fIsPointInStrokePath = NULL;
90 newInterface->fFunctions.fGetPathLength = NULL;
91 newInterface->fFunctions.fPointAlongPath = NULL;
92
93 return newInterface;
94 }
95
96 GrGLInterface::GrGLInterface() {
97 fStandard = kNone_GrGLStandard;
98
99 #if GR_GL_PER_GL_FUNC_CALLBACK
100 fCallback = GrGLDefaultInterfaceCallback;
101 fCallbackData = 0;
102 #endif
103 }
104
105 GrGLInterface* GrGLInterface::NewClone(const GrGLInterface* interface) {
106 SkASSERT(NULL != interface);
107
108 GrGLInterface* clone = SkNEW(GrGLInterface);
109 clone->fStandard = interface->fStandard;
110 clone->fExtensions = interface->fExtensions;
111 clone->fFunctions = interface->fFunctions;
112 #if GR_GL_PER_GL_FUNC_CALLBACK
113 clone->fCallback = interface->fCallback;
114 clone->fCallbackData = interface->fCallbackData;
115 #endif
116 return clone;
117 }
118
119 bool GrGLInterface::validate() const {
120
121 if (kNone_GrGLStandard == fStandard) {
122 return false;
123 }
124
125 if (!fExtensions.isInitialized()) {
126 return false;
127 }
128
129 // functions that are always required
130 if (NULL == fFunctions.fActiveTexture ||
131 NULL == fFunctions.fAttachShader ||
132 NULL == fFunctions.fBindAttribLocation ||
133 NULL == fFunctions.fBindBuffer ||
134 NULL == fFunctions.fBindTexture ||
135 NULL == fFunctions.fBlendFunc ||
136 NULL == fFunctions.fBlendColor || // -> GL >= 1.4, ES >= 2.0 or extension
137 NULL == fFunctions.fBufferData ||
138 NULL == fFunctions.fBufferSubData ||
139 NULL == fFunctions.fClear ||
140 NULL == fFunctions.fClearColor ||
141 NULL == fFunctions.fClearStencil ||
142 NULL == fFunctions.fColorMask ||
143 NULL == fFunctions.fCompileShader ||
144 NULL == fFunctions.fCopyTexSubImage2D ||
145 NULL == fFunctions.fCreateProgram ||
146 NULL == fFunctions.fCreateShader ||
147 NULL == fFunctions.fCullFace ||
148 NULL == fFunctions.fDeleteBuffers ||
149 NULL == fFunctions.fDeleteProgram ||
150 NULL == fFunctions.fDeleteShader ||
151 NULL == fFunctions.fDeleteTextures ||
152 NULL == fFunctions.fDepthMask ||
153 NULL == fFunctions.fDisable ||
154 NULL == fFunctions.fDisableVertexAttribArray ||
155 NULL == fFunctions.fDrawArrays ||
156 NULL == fFunctions.fDrawElements ||
157 NULL == fFunctions.fEnable ||
158 NULL == fFunctions.fEnableVertexAttribArray ||
159 NULL == fFunctions.fFrontFace ||
160 NULL == fFunctions.fGenBuffers ||
161 NULL == fFunctions.fGenTextures ||
162 NULL == fFunctions.fGetBufferParameteriv ||
163 NULL == fFunctions.fGenerateMipmap ||
164 NULL == fFunctions.fGetError ||
165 NULL == fFunctions.fGetIntegerv ||
166 NULL == fFunctions.fGetProgramInfoLog ||
167 NULL == fFunctions.fGetProgramiv ||
168 NULL == fFunctions.fGetShaderInfoLog ||
169 NULL == fFunctions.fGetShaderiv ||
170 NULL == fFunctions.fGetString ||
171 NULL == fFunctions.fGetUniformLocation ||
172 NULL == fFunctions.fLinkProgram ||
173 NULL == fFunctions.fLineWidth ||
174 NULL == fFunctions.fPixelStorei ||
175 NULL == fFunctions.fReadPixels ||
176 NULL == fFunctions.fScissor ||
177 NULL == fFunctions.fShaderSource ||
178 NULL == fFunctions.fStencilFunc ||
179 NULL == fFunctions.fStencilMask ||
180 NULL == fFunctions.fStencilOp ||
181 NULL == fFunctions.fTexImage2D ||
182 NULL == fFunctions.fTexParameteri ||
183 NULL == fFunctions.fTexParameteriv ||
184 NULL == fFunctions.fTexSubImage2D ||
185 NULL == fFunctions.fUniform1f ||
186 NULL == fFunctions.fUniform1i ||
187 NULL == fFunctions.fUniform1fv ||
188 NULL == fFunctions.fUniform1iv ||
189 NULL == fFunctions.fUniform2f ||
190 NULL == fFunctions.fUniform2i ||
191 NULL == fFunctions.fUniform2fv ||
192 NULL == fFunctions.fUniform2iv ||
193 NULL == fFunctions.fUniform3f ||
194 NULL == fFunctions.fUniform3i ||
195 NULL == fFunctions.fUniform3fv ||
196 NULL == fFunctions.fUniform3iv ||
197 NULL == fFunctions.fUniform4f ||
198 NULL == fFunctions.fUniform4i ||
199 NULL == fFunctions.fUniform4fv ||
200 NULL == fFunctions.fUniform4iv ||
201 NULL == fFunctions.fUniformMatrix2fv ||
202 NULL == fFunctions.fUniformMatrix3fv ||
203 NULL == fFunctions.fUniformMatrix4fv ||
204 NULL == fFunctions.fUseProgram ||
205 NULL == fFunctions.fVertexAttrib4fv ||
206 NULL == fFunctions.fVertexAttribPointer ||
207 NULL == fFunctions.fViewport ||
208 NULL == fFunctions.fBindFramebuffer ||
209 NULL == fFunctions.fBindRenderbuffer ||
210 NULL == fFunctions.fCheckFramebufferStatus ||
211 NULL == fFunctions.fDeleteFramebuffers ||
212 NULL == fFunctions.fDeleteRenderbuffers ||
213 NULL == fFunctions.fFinish ||
214 NULL == fFunctions.fFlush ||
215 NULL == fFunctions.fFramebufferRenderbuffer ||
216 NULL == fFunctions.fFramebufferTexture2D ||
217 NULL == fFunctions.fGetFramebufferAttachmentParameteriv ||
218 NULL == fFunctions.fGetRenderbufferParameteriv ||
219 NULL == fFunctions.fGenFramebuffers ||
220 NULL == fFunctions.fGenRenderbuffers ||
221 NULL == fFunctions.fRenderbufferStorage) {
222 return false;
223 }
224
225 GrGLVersion glVer = GrGLGetVersion(this);
226
227 bool isCoreProfile = false;
228 if (kGL_GrGLStandard == fStandard && glVer >= GR_GL_VER(3,2)) {
229 GrGLint profileMask;
230 GR_GL_GetIntegerv(this, GR_GL_CONTEXT_PROFILE_MASK, &profileMask);
231 isCoreProfile = SkToBool(profileMask & GR_GL_CONTEXT_CORE_PROFILE_BIT);
232 }
233
234 // Now check that baseline ES/Desktop fns not covered above are present
235 // and that we have fn pointers for any advertised fExtensions that we will
236 // try to use.
237
238 // these functions are part of ES2, we assume they are available
239 // On the desktop we assume they are available if the extension
240 // is present or GL version is high enough.
241 if (kGLES_GrGLStandard == fStandard) {
242 if (NULL == fFunctions.fStencilFuncSeparate ||
243 NULL == fFunctions.fStencilMaskSeparate ||
244 NULL == fFunctions.fStencilOpSeparate) {
245 return false;
246 }
247 } else if (kGL_GrGLStandard == fStandard) {
248
249 if (glVer >= GR_GL_VER(2,0)) {
250 if (NULL == fFunctions.fStencilFuncSeparate ||
251 NULL == fFunctions.fStencilMaskSeparate ||
252 NULL == fFunctions.fStencilOpSeparate) {
253 return false;
254 }
255 }
256 if (glVer >= GR_GL_VER(3,0) && NULL == fFunctions.fBindFragDataLocation) {
257 return false;
258 }
259 if (glVer >= GR_GL_VER(2,0) || fExtensions.has("GL_ARB_draw_buffers")) {
260 if (NULL == fFunctions.fDrawBuffers) {
261 return false;
262 }
263 }
264
265 if (glVer >= GR_GL_VER(1,5) || fExtensions.has("GL_ARB_occlusion_query")) {
266 if (NULL == fFunctions.fGenQueries ||
267 NULL == fFunctions.fDeleteQueries ||
268 NULL == fFunctions.fBeginQuery ||
269 NULL == fFunctions.fEndQuery ||
270 NULL == fFunctions.fGetQueryiv ||
271 NULL == fFunctions.fGetQueryObjectiv ||
272 NULL == fFunctions.fGetQueryObjectuiv) {
273 return false;
274 }
275 }
276 if (glVer >= GR_GL_VER(3,3) ||
277 fExtensions.has("GL_ARB_timer_query") ||
278 fExtensions.has("GL_EXT_timer_query")) {
279 if (NULL == fFunctions.fGetQueryObjecti64v ||
280 NULL == fFunctions.fGetQueryObjectui64v) {
281 return false;
282 }
283 }
284 if (glVer >= GR_GL_VER(3,3) || fExtensions.has("GL_ARB_timer_query")) {
285 if (NULL == fFunctions.fQueryCounter) {
286 return false;
287 }
288 }
289 if (!isCoreProfile) {
290 if (NULL == fFunctions.fLoadIdentity ||
291 NULL == fFunctions.fLoadMatrixf ||
292 NULL == fFunctions.fMatrixMode ||
293 NULL == fFunctions.fTexGenfv ||
294 NULL == fFunctions.fTexGeni) {
295 return false;
296 }
297 }
298 if (fExtensions.has("GL_NV_path_rendering")) {
299 if (NULL == fFunctions.fPathCommands ||
300 NULL == fFunctions.fPathCoords ||
301 NULL == fFunctions.fPathSubCommands ||
302 NULL == fFunctions.fPathSubCoords ||
303 NULL == fFunctions.fPathString ||
304 NULL == fFunctions.fPathGlyphs ||
305 NULL == fFunctions.fPathGlyphRange ||
306 NULL == fFunctions.fWeightPaths ||
307 NULL == fFunctions.fCopyPath ||
308 NULL == fFunctions.fInterpolatePaths ||
309 NULL == fFunctions.fTransformPath ||
310 NULL == fFunctions.fPathParameteriv ||
311 NULL == fFunctions.fPathParameteri ||
312 NULL == fFunctions.fPathParameterfv ||
313 NULL == fFunctions.fPathParameterf ||
314 NULL == fFunctions.fPathDashArray ||
315 NULL == fFunctions.fGenPaths ||
316 NULL == fFunctions.fDeletePaths ||
317 NULL == fFunctions.fIsPath ||
318 NULL == fFunctions.fPathStencilFunc ||
319 NULL == fFunctions.fPathStencilDepthOffset ||
320 NULL == fFunctions.fStencilFillPath ||
321 NULL == fFunctions.fStencilStrokePath ||
322 NULL == fFunctions.fStencilFillPathInstanced ||
323 NULL == fFunctions.fStencilStrokePathInstanced ||
324 NULL == fFunctions.fPathCoverDepthFunc ||
325 NULL == fFunctions.fPathColorGen ||
326 NULL == fFunctions.fPathTexGen ||
327 NULL == fFunctions.fPathFogGen ||
328 NULL == fFunctions.fCoverFillPath ||
329 NULL == fFunctions.fCoverStrokePath ||
330 NULL == fFunctions.fCoverFillPathInstanced ||
331 NULL == fFunctions.fCoverStrokePathInstanced ||
332 NULL == fFunctions.fGetPathParameteriv ||
333 NULL == fFunctions.fGetPathParameterfv ||
334 NULL == fFunctions.fGetPathCommands ||
335 NULL == fFunctions.fGetPathCoords ||
336 NULL == fFunctions.fGetPathDashArray ||
337 NULL == fFunctions.fGetPathMetrics ||
338 NULL == fFunctions.fGetPathMetricRange ||
339 NULL == fFunctions.fGetPathSpacing ||
340 NULL == fFunctions.fGetPathColorGeniv ||
341 NULL == fFunctions.fGetPathColorGenfv ||
342 NULL == fFunctions.fGetPathTexGeniv ||
343 NULL == fFunctions.fGetPathTexGenfv ||
344 NULL == fFunctions.fIsPointInFillPath ||
345 NULL == fFunctions.fIsPointInStrokePath ||
346 NULL == fFunctions.fGetPathLength ||
347 NULL == fFunctions.fPointAlongPath) {
348 return false;
349 }
350 }
351 }
352
353 // optional function on desktop before 1.3
354 if (kGL_GrGLStandard != fStandard ||
355 (glVer >= GR_GL_VER(1,3)) ||
356 fExtensions.has("GL_ARB_texture_compression")) {
357 if (NULL == fFunctions.fCompressedTexImage2D) {
358 return false;
359 }
360 }
361
362 // part of desktop GL, but not ES
363 if (kGL_GrGLStandard == fStandard &&
364 (NULL == fFunctions.fGetTexLevelParameteriv ||
365 NULL == fFunctions.fDrawBuffer ||
366 NULL == fFunctions.fReadBuffer)) {
367 return false;
368 }
369
370 // GL_EXT_texture_storage is part of desktop 4.2
371 // There is a desktop ARB extension and an ES+desktop EXT extension
372 if (kGL_GrGLStandard == fStandard) {
373 if (glVer >= GR_GL_VER(4,2) ||
374 fExtensions.has("GL_ARB_texture_storage") ||
375 fExtensions.has("GL_EXT_texture_storage")) {
376 if (NULL == fFunctions.fTexStorage2D) {
377 return false;
378 }
379 }
380 } else if (glVer >= GR_GL_VER(3,0) || fExtensions.has("GL_EXT_texture_storage")) {
381 if (NULL == fFunctions.fTexStorage2D) {
382 return false;
383 }
384 }
385
386 if (fExtensions.has("GL_EXT_discard_framebuffer")) {
387 // FIXME: Remove this once Chromium is updated to provide this function
388 #if 0
389 if (NULL == fFunctions.fDiscardFramebuffer) {
390 return false;
391 }
392 #endif
393 }
394
395 // FBO MSAA
396 if (kGL_GrGLStandard == fStandard) {
397 // GL 3.0 and the ARB extension have multisample + blit
398 if (glVer >= GR_GL_VER(3,0) || fExtensions.has("GL_ARB_framebuffer_object")) {
399 if (NULL == fFunctions.fRenderbufferStorageMultisample ||
400 NULL == fFunctions.fBlitFramebuffer) {
401 return false;
402 }
403 } else {
404 if (fExtensions.has("GL_EXT_framebuffer_blit") &&
405 NULL == fFunctions.fBlitFramebuffer) {
406 return false;
407 }
408 if (fExtensions.has("GL_EXT_framebuffer_multisample") &&
409 NULL == fFunctions.fRenderbufferStorageMultisample) {
410 return false;
411 }
412 }
413 } else {
414 if (glVer >= GR_GL_VER(3,0) || fExtensions.has("GL_CHROMIUM_framebuffer_multisample")) {
415 if (NULL == fFunctions.fRenderbufferStorageMultisample ||
416 NULL == fFunctions.fBlitFramebuffer) {
417 return false;
418 }
419 }
420 if (fExtensions.has("GL_APPLE_framebuffer_multisample")) {
421 if (NULL == fFunctions.fRenderbufferStorageMultisampleES2APPLE ||
422 NULL == fFunctions.fResolveMultisampleFramebuffer) {
423 return false;
424 }
425 }
426 if (fExtensions.has("GL_IMG_multisampled_render_to_texture") ||
427 fExtensions.has("GL_EXT_multisampled_render_to_texture")) {
428 if (NULL == fFunctions.fRenderbufferStorageMultisampleES2EXT ||
429 NULL == fFunctions.fFramebufferTexture2DMultisample) {
430 return false;
431 }
432 }
433 }
434
435 // On ES buffer mapping is an extension. On Desktop
436 // buffer mapping was part of original VBO extension
437 // which we require.
438 if (kGL_GrGLStandard == fStandard || fExtensions.has("GL_OES_mapbuffer")) {
439 if (NULL == fFunctions.fMapBuffer ||
440 NULL == fFunctions.fUnmapBuffer) {
441 return false;
442 }
443 }
444
445 // Dual source blending
446 if (kGL_GrGLStandard == fStandard &&
447 (glVer >= GR_GL_VER(3,3) || fExtensions.has("GL_ARB_blend_func_extended"))) {
448 if (NULL == fFunctions.fBindFragDataLocationIndexed) {
449 return false;
450 }
451 }
452
453 // glGetStringi was added in version 3.0 of both desktop and ES.
454 if (glVer >= GR_GL_VER(3, 0)) {
455 if (NULL == fFunctions.fGetStringi) {
456 return false;
457 }
458 }
459
460 if (kGL_GrGLStandard == fStandard) {
461 if (glVer >= GR_GL_VER(3, 0) || fExtensions.has("GL_ARB_vertex_array_object")) {
462 if (NULL == fFunctions.fBindVertexArray ||
463 NULL == fFunctions.fDeleteVertexArrays ||
464 NULL == fFunctions.fGenVertexArrays) {
465 return false;
466 }
467 }
468 } else {
469 if (glVer >= GR_GL_VER(3,0) || fExtensions.has("GL_OES_vertex_array_object")) {
470 if (NULL == fFunctions.fBindVertexArray ||
471 NULL == fFunctions.fDeleteVertexArrays ||
472 NULL == fFunctions.fGenVertexArrays) {
473 return false;
474 }
475 }
476 }
477
478 #if 0
479 if (fExtensions.has("GL_EXT_debug_marker")) {
480 if (NULL == fFunctions.fInsertEventMarker ||
481 NULL == fFunctions.fPushGroupMarker ||
482 NULL == fFunctions.fPopGroupMarker) {
483 return false;
484 }
485 }
486 #endif
487 return true;
488 }

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