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 #ifndef GrGLInterface_DEFINED
9 #define GrGLInterface_DEFINED
10 
11 #include "GrGLFunctions.h"
12 #include "GrGLExtensions.h"
13 #include "SkRefCnt.h"
14 
15 ////////////////////////////////////////////////////////////////////////////////
16 
17 /**
18  * Rather than depend on platform-specific GL headers and libraries, we require
19  * the client to provide a struct of GL function pointers. This struct can be
20  * specified per-GrContext as a parameter to GrContext::Create. If NULL is
21  * passed to Create then a "default" GL interface is created. If the default is
22  * also NULL GrContext creation will fail.
23  *
24  * The default interface is returned by GrGLDefaultInterface. This function's
25  * implementation is platform-specific. Several have been provided, along with
26  * an implementation that simply returns NULL.
27  *
28  * By defining GR_GL_PER_GL_CALL_IFACE_CALLBACK to 1 the client can specify a
29  * callback function that will be called prior to each GL function call. See
30  * comments in GrGLConfig.h
31  */
32 
33 typedef void(*GrGLFuncPtr)();
34 
35 struct GrGLInterface;
36 
37 const GrGLInterface* GrGLDefaultInterface();
38 
39 /**
40  * Creates a GrGLInterface for a "native" GL context (e.g. WGL on windows,
41  * GLX on linux, AGL on Mac). The interface is only valid for the GL context
42  * that is current when the interface is created.
43  */
44 SK_API const GrGLInterface* GrGLCreateNativeInterface();
45 
46 #if SK_MESA
47 /**
48  * Creates a GrGLInterface for an OSMesa context.
49  */
50 SK_API const GrGLInterface* GrGLCreateMesaInterface();
51 #endif
52 
53 #if SK_ANGLE
54 /**
55  * Creates a GrGLInterface for an ANGLE context.
56  */
57 SK_API const GrGLInterface* GrGLCreateANGLEInterface();
58 #endif
59 
60 #if SK_COMMAND_BUFFER
61 /**
62  * Creates a GrGLInterface for a Command Buffer context.
63  */
64 SK_API const GrGLInterface* GrGLCreateCommandBufferInterface();
65 #endif
66 
67 /**
68  * Creates a null GrGLInterface that doesn't draw anything. Used for measuring
69  * CPU overhead.
70  */
71 const SK_API GrGLInterface* GrGLCreateNullInterface();
72 
73 /**
74  * Creates a debugging GrGLInterface that doesn't draw anything. Used for
75  * finding memory leaks and invalid memory accesses.
76  */
77 const GrGLInterface* GrGLCreateDebugInterface();
78 
79 #if GR_GL_PER_GL_FUNC_CALLBACK
80 typedef void (*GrGLInterfaceCallbackProc)(const GrGLInterface*);
81 typedef intptr_t GrGLInterfaceCallbackData;
82 #endif
83 
84 /** Function that returns a new interface identical to "interface" but without support for
85     GL_NV_path_rendering. */
86 const GrGLInterface* GrGLInterfaceRemoveNVPR(const GrGLInterface*);
87 
88 /** Function that returns a new interface identical to "interface" but with support for
89     test version of GL_EXT_debug_marker. */
90 const GrGLInterface* GrGLInterfaceAddTestDebugMarker(const GrGLInterface*,
91                                                      GrGLInsertEventMarkerProc insertEventMarkerFn,
92                                                      GrGLPushGroupMarkerProc pushGroupMarkerFn,
93                                                      GrGLPopGroupMarkerProc popGroupMarkerFn);
94 
95 /**
96  * GrContext uses the following interface to make all calls into OpenGL. When a
97  * GrContext is created it is given a GrGLInterface. The interface's function
98  * pointers must be valid for the OpenGL context associated with the GrContext.
99  * On some platforms, such as Windows, function pointers for OpenGL extensions
100  * may vary between OpenGL contexts. So the caller must be careful to use a
101  * GrGLInterface initialized for the correct context. All functions that should
102  * be available based on the OpenGL's version and extension string must be
103  * non-NULL or GrContext creation will fail. This can be tested with the
104  * validate() method when the OpenGL context has been made current.
105  */
106 struct SK_API GrGLInterface : public SkRefCnt {
107 private:
108     typedef SkRefCnt INHERITED;
109 
110 public:
111     GrGLInterface();
112 
113     static GrGLInterface* NewClone(const GrGLInterface*);
114 
115     // Validates that the GrGLInterface supports its advertised standard. This means the necessary
116     // function pointers have been initialized for both the GL version and any advertised
117     // extensions.
118     bool validate() const;
119 
120     // Indicates the type of GL implementation
121     union {
122         GrGLStandard fStandard;
123         GrGLStandard fBindingsExported; // Legacy name, will be remove when Chromium is updated.
124     };
125 
126     GrGLExtensions fExtensions;
127 
hasExtensionGrGLInterface128     bool hasExtension(const char ext[]) const { return fExtensions.has(ext); }
129 
130     /**
131      * The function pointers are in a struct so that we can have a compiler generated assignment
132      * operator.
133      */
134     struct Functions {
135         GrGLFunction<GrGLActiveTextureProc> fActiveTexture;
136         GrGLFunction<GrGLAttachShaderProc> fAttachShader;
137         GrGLFunction<GrGLBeginQueryProc> fBeginQuery;
138         GrGLFunction<GrGLBindAttribLocationProc> fBindAttribLocation;
139         GrGLFunction<GrGLBindBufferProc> fBindBuffer;
140         GrGLFunction<GrGLBindFragDataLocationProc> fBindFragDataLocation;
141         GrGLFunction<GrGLBindFragDataLocationIndexedProc> fBindFragDataLocationIndexed;
142         GrGLFunction<GrGLBindFramebufferProc> fBindFramebuffer;
143         GrGLFunction<GrGLBindRenderbufferProc> fBindRenderbuffer;
144         GrGLFunction<GrGLBindTextureProc> fBindTexture;
145         GrGLFunction<GrGLBindVertexArrayProc> fBindVertexArray;
146         GrGLFunction<GrGLBlendBarrierProc> fBlendBarrier;
147         GrGLFunction<GrGLBlendColorProc> fBlendColor;
148         GrGLFunction<GrGLBlendEquationProc> fBlendEquation;
149         GrGLFunction<GrGLBlendFuncProc> fBlendFunc;
150         GrGLFunction<GrGLBlitFramebufferProc> fBlitFramebuffer;
151         GrGLFunction<GrGLBufferDataProc> fBufferData;
152         GrGLFunction<GrGLBufferSubDataProc> fBufferSubData;
153         GrGLFunction<GrGLCheckFramebufferStatusProc> fCheckFramebufferStatus;
154         GrGLFunction<GrGLClearProc> fClear;
155         GrGLFunction<GrGLClearColorProc> fClearColor;
156         GrGLFunction<GrGLClearStencilProc> fClearStencil;
157         GrGLFunction<GrGLColorMaskProc> fColorMask;
158         GrGLFunction<GrGLCompileShaderProc> fCompileShader;
159         GrGLFunction<GrGLCompressedTexImage2DProc> fCompressedTexImage2D;
160         GrGLFunction<GrGLCompressedTexSubImage2DProc> fCompressedTexSubImage2D;
161         GrGLFunction<GrGLCopyTexSubImage2DProc> fCopyTexSubImage2D;
162         GrGLFunction<GrGLCreateProgramProc> fCreateProgram;
163         GrGLFunction<GrGLCreateShaderProc> fCreateShader;
164         GrGLFunction<GrGLCullFaceProc> fCullFace;
165         GrGLFunction<GrGLDeleteBuffersProc> fDeleteBuffers;
166         GrGLFunction<GrGLDeleteFramebuffersProc> fDeleteFramebuffers;
167         GrGLFunction<GrGLDeleteProgramProc> fDeleteProgram;
168         GrGLFunction<GrGLDeleteQueriesProc> fDeleteQueries;
169         GrGLFunction<GrGLDeleteRenderbuffersProc> fDeleteRenderbuffers;
170         GrGLFunction<GrGLDeleteShaderProc> fDeleteShader;
171         GrGLFunction<GrGLDeleteTexturesProc> fDeleteTextures;
172         GrGLFunction<GrGLDeleteVertexArraysProc> fDeleteVertexArrays;
173         GrGLFunction<GrGLDepthMaskProc> fDepthMask;
174         GrGLFunction<GrGLDisableProc> fDisable;
175         GrGLFunction<GrGLDisableVertexAttribArrayProc> fDisableVertexAttribArray;
176         GrGLFunction<GrGLDrawArraysProc> fDrawArrays;
177         GrGLFunction<GrGLDrawArraysIndirectProc> fDrawArraysIndirect;
178         GrGLFunction<GrGLDrawArraysInstancedProc> fDrawArraysInstanced;
179         GrGLFunction<GrGLDrawBufferProc> fDrawBuffer;
180         GrGLFunction<GrGLDrawBuffersProc> fDrawBuffers;
181         GrGLFunction<GrGLDrawElementsProc> fDrawElements;
182         GrGLFunction<GrGLDrawElementsIndirectProc> fDrawElementsIndirect;
183         GrGLFunction<GrGLDrawElementsInstancedProc> fDrawElementsInstanced;
184         GrGLFunction<GrGLEnableProc> fEnable;
185         GrGLFunction<GrGLEnableVertexAttribArrayProc> fEnableVertexAttribArray;
186         GrGLFunction<GrGLEndQueryProc> fEndQuery;
187         GrGLFunction<GrGLFinishProc> fFinish;
188         GrGLFunction<GrGLFlushProc> fFlush;
189         GrGLFunction<GrGLFlushMappedBufferRangeProc> fFlushMappedBufferRange;
190         GrGLFunction<GrGLFramebufferRenderbufferProc> fFramebufferRenderbuffer;
191         GrGLFunction<GrGLFramebufferTexture2DProc> fFramebufferTexture2D;
192         GrGLFunction<GrGLFramebufferTexture2DMultisampleProc> fFramebufferTexture2DMultisample;
193         GrGLFunction<GrGLFrontFaceProc> fFrontFace;
194         GrGLFunction<GrGLGenBuffersProc> fGenBuffers;
195         GrGLFunction<GrGLGenFramebuffersProc> fGenFramebuffers;
196         GrGLFunction<GrGLGenerateMipmapProc> fGenerateMipmap;
197         GrGLFunction<GrGLGenQueriesProc> fGenQueries;
198         GrGLFunction<GrGLGenRenderbuffersProc> fGenRenderbuffers;
199         GrGLFunction<GrGLGenTexturesProc> fGenTextures;
200         GrGLFunction<GrGLGenVertexArraysProc> fGenVertexArrays;
201         GrGLFunction<GrGLGetBufferParameterivProc> fGetBufferParameteriv;
202         GrGLFunction<GrGLGetErrorProc> fGetError;
203         GrGLFunction<GrGLGetFramebufferAttachmentParameterivProc> fGetFramebufferAttachmentParameteriv;
204         GrGLFunction<GrGLGetIntegervProc> fGetIntegerv;
205         GrGLFunction<GrGLGetQueryObjecti64vProc> fGetQueryObjecti64v;
206         GrGLFunction<GrGLGetQueryObjectivProc> fGetQueryObjectiv;
207         GrGLFunction<GrGLGetQueryObjectui64vProc> fGetQueryObjectui64v;
208         GrGLFunction<GrGLGetQueryObjectuivProc> fGetQueryObjectuiv;
209         GrGLFunction<GrGLGetQueryivProc> fGetQueryiv;
210         GrGLFunction<GrGLGetProgramInfoLogProc> fGetProgramInfoLog;
211         GrGLFunction<GrGLGetProgramivProc> fGetProgramiv;
212         GrGLFunction<GrGLGetRenderbufferParameterivProc> fGetRenderbufferParameteriv;
213         GrGLFunction<GrGLGetShaderInfoLogProc> fGetShaderInfoLog;
214         GrGLFunction<GrGLGetShaderivProc> fGetShaderiv;
215         GrGLFunction<GrGLGetShaderPrecisionFormatProc> fGetShaderPrecisionFormat;
216         GrGLFunction<GrGLGetStringProc> fGetString;
217         GrGLFunction<GrGLGetStringiProc> fGetStringi;
218         GrGLFunction<GrGLGetTexLevelParameterivProc> fGetTexLevelParameteriv;
219         GrGLFunction<GrGLGetUniformLocationProc> fGetUniformLocation;
220         GrGLFunction<GrGLInsertEventMarkerProc> fInsertEventMarker;
221         GrGLFunction<GrGLInvalidateBufferDataProc> fInvalidateBufferData;
222         GrGLFunction<GrGLInvalidateBufferSubDataProc> fInvalidateBufferSubData;
223         GrGLFunction<GrGLInvalidateFramebufferProc> fInvalidateFramebuffer;
224         GrGLFunction<GrGLInvalidateSubFramebufferProc> fInvalidateSubFramebuffer;
225         GrGLFunction<GrGLInvalidateTexImageProc> fInvalidateTexImage;
226         GrGLFunction<GrGLInvalidateTexSubImageProc> fInvalidateTexSubImage;
227         GrGLFunction<GrGLIsTextureProc> fIsTexture;
228         GrGLFunction<GrGLLineWidthProc> fLineWidth;
229         GrGLFunction<GrGLLinkProgramProc> fLinkProgram;
230         GrGLFunction<GrGLMapBufferProc> fMapBuffer;
231         GrGLFunction<GrGLMapBufferRangeProc> fMapBufferRange;
232         GrGLFunction<GrGLMapBufferSubDataProc> fMapBufferSubData;
233         GrGLFunction<GrGLMapTexSubImage2DProc> fMapTexSubImage2D;
234         GrGLFunction<GrGLPixelStoreiProc> fPixelStorei;
235         GrGLFunction<GrGLPopGroupMarkerProc> fPopGroupMarker;
236         GrGLFunction<GrGLPushGroupMarkerProc> fPushGroupMarker;
237         GrGLFunction<GrGLQueryCounterProc> fQueryCounter;
238         GrGLFunction<GrGLRasterSamplesProc> fRasterSamples;
239         GrGLFunction<GrGLReadBufferProc> fReadBuffer;
240         GrGLFunction<GrGLReadPixelsProc> fReadPixels;
241         GrGLFunction<GrGLRenderbufferStorageProc> fRenderbufferStorage;
242 
243         //  On OpenGL ES there are multiple incompatible extensions that add support for MSAA
244         //  and ES3 adds MSAA support to the standard. On an ES3 driver we may still use the
245         //  older extensions for performance reasons or due to ES3 driver bugs. We want the function
246         //  that creates the GrGLInterface to provide all available functions and internally
247         //  we will select among them. They all have a method called glRenderbufferStorageMultisample*.
248         //  So we have separate function pointers for GL_IMG/EXT_multisampled_to_texture,
249         //  GL_CHROMIUM/ANGLE_framebuffer_multisample/ES3, and GL_APPLE_framebuffer_multisample
250         //  variations.
251         //
252         //  If a driver supports multiple GL_ARB_framebuffer_multisample-style extensions then we will
253         //  assume the function pointers for the standard (or equivalent GL_ARB) version have
254         //  been preferred over GL_EXT, GL_CHROMIUM, or GL_ANGLE variations that have reduced
255         //  functionality.
256 
257         //  GL_EXT_multisampled_render_to_texture (preferred) or GL_IMG_multisampled_render_to_texture
258         GrGLFunction<GrGLRenderbufferStorageMultisampleProc> fRenderbufferStorageMultisampleES2EXT;
259         //  GL_APPLE_framebuffer_multisample
260         GrGLFunction<GrGLRenderbufferStorageMultisampleProc> fRenderbufferStorageMultisampleES2APPLE;
261 
262         //  This is used to store the pointer for GL_ARB/EXT/ANGLE/CHROMIUM_framebuffer_multisample or
263         //  the standard function in ES3+ or GL 3.0+.
264         GrGLFunction<GrGLRenderbufferStorageMultisampleProc> fRenderbufferStorageMultisample;
265 
266         // Pointer to BindUniformLocationCHROMIUM from the GL_CHROMIUM_bind_uniform_location extension.
267         GrGLFunction<GrGLBindUniformLocationProc> fBindUniformLocation;
268 
269         GrGLFunction<GrGLResolveMultisampleFramebufferProc> fResolveMultisampleFramebuffer;
270         GrGLFunction<GrGLScissorProc> fScissor;
271         GrGLFunction<GrGLShaderSourceProc> fShaderSource;
272         GrGLFunction<GrGLStencilFuncProc> fStencilFunc;
273         GrGLFunction<GrGLStencilFuncSeparateProc> fStencilFuncSeparate;
274         GrGLFunction<GrGLStencilMaskProc> fStencilMask;
275         GrGLFunction<GrGLStencilMaskSeparateProc> fStencilMaskSeparate;
276         GrGLFunction<GrGLStencilOpProc> fStencilOp;
277         GrGLFunction<GrGLStencilOpSeparateProc> fStencilOpSeparate;
278         GrGLFunction<GrGLTexImage2DProc> fTexImage2D;
279         GrGLFunction<GrGLTexParameteriProc> fTexParameteri;
280         GrGLFunction<GrGLTexParameterivProc> fTexParameteriv;
281         GrGLFunction<GrGLTexSubImage2DProc> fTexSubImage2D;
282         GrGLFunction<GrGLTexStorage2DProc> fTexStorage2D;
283         GrGLFunction<GrGLTextureBarrierProc> fTextureBarrier;
284         GrGLFunction<GrGLDiscardFramebufferProc> fDiscardFramebuffer;
285         GrGLFunction<GrGLUniform1fProc> fUniform1f;
286         GrGLFunction<GrGLUniform1iProc> fUniform1i;
287         GrGLFunction<GrGLUniform1fvProc> fUniform1fv;
288         GrGLFunction<GrGLUniform1ivProc> fUniform1iv;
289         GrGLFunction<GrGLUniform2fProc> fUniform2f;
290         GrGLFunction<GrGLUniform2iProc> fUniform2i;
291         GrGLFunction<GrGLUniform2fvProc> fUniform2fv;
292         GrGLFunction<GrGLUniform2ivProc> fUniform2iv;
293         GrGLFunction<GrGLUniform3fProc> fUniform3f;
294         GrGLFunction<GrGLUniform3iProc> fUniform3i;
295         GrGLFunction<GrGLUniform3fvProc> fUniform3fv;
296         GrGLFunction<GrGLUniform3ivProc> fUniform3iv;
297         GrGLFunction<GrGLUniform4fProc> fUniform4f;
298         GrGLFunction<GrGLUniform4iProc> fUniform4i;
299         GrGLFunction<GrGLUniform4fvProc> fUniform4fv;
300         GrGLFunction<GrGLUniform4ivProc> fUniform4iv;
301         GrGLFunction<GrGLUniformMatrix2fvProc> fUniformMatrix2fv;
302         GrGLFunction<GrGLUniformMatrix3fvProc> fUniformMatrix3fv;
303         GrGLFunction<GrGLUniformMatrix4fvProc> fUniformMatrix4fv;
304         GrGLFunction<GrGLUnmapBufferProc> fUnmapBuffer;
305         GrGLFunction<GrGLUnmapBufferSubDataProc> fUnmapBufferSubData;
306         GrGLFunction<GrGLUnmapTexSubImage2DProc> fUnmapTexSubImage2D;
307         GrGLFunction<GrGLUseProgramProc> fUseProgram;
308         GrGLFunction<GrGLVertexAttrib1fProc> fVertexAttrib1f;
309         GrGLFunction<GrGLVertexAttrib2fvProc> fVertexAttrib2fv;
310         GrGLFunction<GrGLVertexAttrib3fvProc> fVertexAttrib3fv;
311         GrGLFunction<GrGLVertexAttrib4fvProc> fVertexAttrib4fv;
312         GrGLFunction<GrGLVertexAttribDivisorProc> fVertexAttribDivisor;
313         GrGLFunction<GrGLVertexAttribIPointerProc> fVertexAttribIPointer;
314         GrGLFunction<GrGLVertexAttribPointerProc> fVertexAttribPointer;
315         GrGLFunction<GrGLViewportProc> fViewport;
316 
317         /* GL_NV_path_rendering */
318         GrGLFunction<GrGLMatrixLoadfProc> fMatrixLoadf;
319         GrGLFunction<GrGLMatrixLoadIdentityProc> fMatrixLoadIdentity;
320         GrGLFunction<GrGLGetProgramResourceLocationProc> fGetProgramResourceLocation;
321         GrGLFunction<GrGLPathCommandsProc> fPathCommands;
322         GrGLFunction<GrGLPathParameteriProc> fPathParameteri;
323         GrGLFunction<GrGLPathParameterfProc> fPathParameterf;
324         GrGLFunction<GrGLGenPathsProc> fGenPaths;
325         GrGLFunction<GrGLDeletePathsProc> fDeletePaths;
326         GrGLFunction<GrGLIsPathProc> fIsPath;
327         GrGLFunction<GrGLPathStencilFuncProc> fPathStencilFunc;
328         GrGLFunction<GrGLStencilFillPathProc> fStencilFillPath;
329         GrGLFunction<GrGLStencilStrokePathProc> fStencilStrokePath;
330         GrGLFunction<GrGLStencilFillPathInstancedProc> fStencilFillPathInstanced;
331         GrGLFunction<GrGLStencilStrokePathInstancedProc> fStencilStrokePathInstanced;
332         GrGLFunction<GrGLCoverFillPathProc> fCoverFillPath;
333         GrGLFunction<GrGLCoverStrokePathProc> fCoverStrokePath;
334         GrGLFunction<GrGLCoverFillPathInstancedProc> fCoverFillPathInstanced;
335         GrGLFunction<GrGLCoverStrokePathInstancedProc> fCoverStrokePathInstanced;
336         // NV_path_rendering v1.2
337         GrGLFunction<GrGLStencilThenCoverFillPathProc> fStencilThenCoverFillPath;
338         GrGLFunction<GrGLStencilThenCoverStrokePathProc> fStencilThenCoverStrokePath;
339         GrGLFunction<GrGLStencilThenCoverFillPathInstancedProc> fStencilThenCoverFillPathInstanced;
340         GrGLFunction<GrGLStencilThenCoverStrokePathInstancedProc> fStencilThenCoverStrokePathInstanced;
341         // NV_path_rendering v1.3
342         GrGLFunction<GrGLProgramPathFragmentInputGenProc> fProgramPathFragmentInputGen;
343         // CHROMIUM_path_rendering
344         GrGLFunction<GrGLBindFragmentInputLocationProc> fBindFragmentInputLocation;
345 
346         /* NV_framebuffer_mixed_samples */
347         GrGLFunction<GrGLCoverageModulationProc> fCoverageModulation;
348 
349         /* EXT_multi_draw_indirect */
350         GrGLFunction<GrGLMultiDrawArraysIndirectProc> fMultiDrawArraysIndirect;
351         GrGLFunction<GrGLMultiDrawElementsIndirectProc> fMultiDrawElementsIndirect;
352 
353         /* NV_bindless_texture */
354         // We use the NVIDIA verson for now because it does not require dynamically uniform handles.
355         // We may switch the the ARB version and/or omit methods in the future.
356         GrGLFunction<GrGLGetTextureHandleProc> fGetTextureHandle;
357         GrGLFunction<GrGLGetTextureSamplerHandleProc> fGetTextureSamplerHandle;
358         GrGLFunction<GrGLMakeTextureHandleResidentProc> fMakeTextureHandleResident;
359         GrGLFunction<GrGLMakeTextureHandleNonResidentProc> fMakeTextureHandleNonResident;
360         GrGLFunction<GrGLGetImageHandleProc> fGetImageHandle;
361         GrGLFunction<GrGLMakeImageHandleResidentProc> fMakeImageHandleResident;
362         GrGLFunction<GrGLMakeImageHandleNonResidentProc> fMakeImageHandleNonResident;
363         GrGLFunction<GrGLIsTextureHandleResidentProc> fIsTextureHandleResident;
364         GrGLFunction<GrGLIsImageHandleResidentProc> fIsImageHandleResident;
365         GrGLFunction<GrGLUniformHandleui64Proc> fUniformHandleui64;
366         GrGLFunction<GrGLUniformHandleui64vProc> fUniformHandleui64v;
367         GrGLFunction<GrGLProgramUniformHandleui64Proc> fProgramUniformHandleui64;
368         GrGLFunction<GrGLProgramUniformHandleui64vProc> fProgramUniformHandleui64v;
369 
370         /* EXT_direct_state_access */
371         // We use the EXT verson because it is more expansive and interacts with more extensions
372         // than the ARB or core (4.5) versions. We may switch and/or omit methods in the future.
373         GrGLFunction<GrGLTextureParameteriProc> fTextureParameteri;
374         GrGLFunction<GrGLTextureParameterivProc> fTextureParameteriv;
375         GrGLFunction<GrGLTextureParameterfProc> fTextureParameterf;
376         GrGLFunction<GrGLTextureParameterfvProc> fTextureParameterfv;
377         GrGLFunction<GrGLTextureImage1DProc> fTextureImage1D;
378         GrGLFunction<GrGLTextureImage2DProc> fTextureImage2D;
379         GrGLFunction<GrGLTextureSubImage1DProc> fTextureSubImage1D;
380         GrGLFunction<GrGLTextureSubImage2DProc> fTextureSubImage2D;
381         GrGLFunction<GrGLCopyTextureImage1DProc> fCopyTextureImage1D;
382         GrGLFunction<GrGLCopyTextureImage2DProc> fCopyTextureImage2D;
383         GrGLFunction<GrGLCopyTextureSubImage1DProc> fCopyTextureSubImage1D;
384         GrGLFunction<GrGLCopyTextureSubImage2DProc> fCopyTextureSubImage2D;
385         GrGLFunction<GrGLGetTextureImageProc> fGetTextureImage;
386         GrGLFunction<GrGLGetTextureParameterfvProc> fGetTextureParameterfv;
387         GrGLFunction<GrGLGetTextureParameterivProc> fGetTextureParameteriv;
388         GrGLFunction<GrGLGetTextureLevelParameterfvProc> fGetTextureLevelParameterfv;
389         GrGLFunction<GrGLGetTextureLevelParameterivProc> fGetTextureLevelParameteriv;
390         // OpenGL 1.2
391         GrGLFunction<GrGLTextureImage3DProc> fTextureImage3D;
392         GrGLFunction<GrGLTextureSubImage3DProc> fTextureSubImage3D;
393         GrGLFunction<GrGLCopyTextureSubImage3DProc> fCopyTextureSubImage3D;
394         GrGLFunction<GrGLCompressedTextureImage3DProc> fCompressedTextureImage3D;
395         GrGLFunction<GrGLCompressedTextureImage2DProc> fCompressedTextureImage2D;
396         GrGLFunction<GrGLCompressedTextureImage1DProc> fCompressedTextureImage1D;
397         GrGLFunction<GrGLCompressedTextureSubImage3DProc> fCompressedTextureSubImage3D;
398         GrGLFunction<GrGLCompressedTextureSubImage2DProc> fCompressedTextureSubImage2D;
399         GrGLFunction<GrGLCompressedTextureSubImage1DProc> fCompressedTextureSubImage1D;
400         GrGLFunction<GrGLGetCompressedTextureImageProc> fGetCompressedTextureImage;
401         // OpenGL 1.5
402         GrGLFunction<GrGLNamedBufferDataProc> fNamedBufferData;
403         GrGLFunction<GrGLNamedBufferSubDataProc> fNamedBufferSubData;
404         GrGLFunction<GrGLMapNamedBufferProc> fMapNamedBuffer;
405         GrGLFunction<GrGLUnmapNamedBufferProc> fUnmapNamedBuffer;
406         GrGLFunction<GrGLGetNamedBufferParameterivProc> fGetNamedBufferParameteriv;
407         GrGLFunction<GrGLGetNamedBufferPointervProc> fGetNamedBufferPointerv;
408         GrGLFunction<GrGLGetNamedBufferSubDataProc> fGetNamedBufferSubData;
409         // OpenGL 2.0
410         GrGLFunction<GrGLProgramUniform1fProc> fProgramUniform1f;
411         GrGLFunction<GrGLProgramUniform2fProc> fProgramUniform2f;
412         GrGLFunction<GrGLProgramUniform3fProc> fProgramUniform3f;
413         GrGLFunction<GrGLProgramUniform4fProc> fProgramUniform4f;
414         GrGLFunction<GrGLProgramUniform1iProc> fProgramUniform1i;
415         GrGLFunction<GrGLProgramUniform2iProc> fProgramUniform2i;
416         GrGLFunction<GrGLProgramUniform3iProc> fProgramUniform3i;
417         GrGLFunction<GrGLProgramUniform4iProc> fProgramUniform4i;
418         GrGLFunction<GrGLProgramUniform1fvProc> fProgramUniform1fv;
419         GrGLFunction<GrGLProgramUniform2fvProc> fProgramUniform2fv;
420         GrGLFunction<GrGLProgramUniform3fvProc> fProgramUniform3fv;
421         GrGLFunction<GrGLProgramUniform4fvProc> fProgramUniform4fv;
422         GrGLFunction<GrGLProgramUniform1ivProc> fProgramUniform1iv;
423         GrGLFunction<GrGLProgramUniform2ivProc> fProgramUniform2iv;
424         GrGLFunction<GrGLProgramUniform3ivProc> fProgramUniform3iv;
425         GrGLFunction<GrGLProgramUniform4ivProc> fProgramUniform4iv;
426         GrGLFunction<GrGLProgramUniformMatrix2fvProc> fProgramUniformMatrix2fv;
427         GrGLFunction<GrGLProgramUniformMatrix3fvProc> fProgramUniformMatrix3fv;
428         GrGLFunction<GrGLProgramUniformMatrix4fvProc> fProgramUniformMatrix4fv;
429         // OpenGL 2.1
430         GrGLFunction<GrGLProgramUniformMatrix2x3fvProc> fProgramUniformMatrix2x3fv;
431         GrGLFunction<GrGLProgramUniformMatrix3x2fvProc> fProgramUniformMatrix3x2fv;
432         GrGLFunction<GrGLProgramUniformMatrix2x4fvProc> fProgramUniformMatrix2x4fv;
433         GrGLFunction<GrGLProgramUniformMatrix4x2fvProc> fProgramUniformMatrix4x2fv;
434         GrGLFunction<GrGLProgramUniformMatrix3x4fvProc> fProgramUniformMatrix3x4fv;
435         GrGLFunction<GrGLProgramUniformMatrix4x3fvProc> fProgramUniformMatrix4x3fv;
436         // OpenGL 3.0
437         GrGLFunction<GrGLNamedRenderbufferStorageProc> fNamedRenderbufferStorage;
438         GrGLFunction<GrGLGetNamedRenderbufferParameterivProc> fGetNamedRenderbufferParameteriv;
439         GrGLFunction<GrGLNamedRenderbufferStorageMultisampleProc> fNamedRenderbufferStorageMultisample;
440         GrGLFunction<GrGLCheckNamedFramebufferStatusProc> fCheckNamedFramebufferStatus;
441         GrGLFunction<GrGLNamedFramebufferTexture1DProc> fNamedFramebufferTexture1D;
442         GrGLFunction<GrGLNamedFramebufferTexture2DProc> fNamedFramebufferTexture2D;
443         GrGLFunction<GrGLNamedFramebufferTexture3DProc> fNamedFramebufferTexture3D;
444         GrGLFunction<GrGLNamedFramebufferRenderbufferProc> fNamedFramebufferRenderbuffer;
445         GrGLFunction<GrGLGetNamedFramebufferAttachmentParameterivProc> fGetNamedFramebufferAttachmentParameteriv;
446         GrGLFunction<GrGLGenerateTextureMipmapProc> fGenerateTextureMipmap;
447         GrGLFunction<GrGLFramebufferDrawBufferProc> fFramebufferDrawBuffer;
448         GrGLFunction<GrGLFramebufferDrawBuffersProc> fFramebufferDrawBuffers;
449         GrGLFunction<GrGLFramebufferReadBufferProc> fFramebufferReadBuffer;
450         GrGLFunction<GrGLGetFramebufferParameterivProc> fGetFramebufferParameteriv;
451         GrGLFunction<GrGLNamedCopyBufferSubDataProc> fNamedCopyBufferSubData;
452         GrGLFunction<GrGLVertexArrayVertexOffsetProc> fVertexArrayVertexOffset;
453         GrGLFunction<GrGLVertexArrayColorOffsetProc> fVertexArrayColorOffset;
454         GrGLFunction<GrGLVertexArrayEdgeFlagOffsetProc> fVertexArrayEdgeFlagOffset;
455         GrGLFunction<GrGLVertexArrayIndexOffsetProc> fVertexArrayIndexOffset;
456         GrGLFunction<GrGLVertexArrayNormalOffsetProc> fVertexArrayNormalOffset;
457         GrGLFunction<GrGLVertexArrayTexCoordOffsetProc> fVertexArrayTexCoordOffset;
458         GrGLFunction<GrGLVertexArrayMultiTexCoordOffsetProc> fVertexArrayMultiTexCoordOffset;
459         GrGLFunction<GrGLVertexArrayFogCoordOffsetProc> fVertexArrayFogCoordOffset;
460         GrGLFunction<GrGLVertexArraySecondaryColorOffsetProc> fVertexArraySecondaryColorOffset;
461         GrGLFunction<GrGLVertexArrayVertexAttribOffsetProc> fVertexArrayVertexAttribOffset;
462         GrGLFunction<GrGLVertexArrayVertexAttribIOffsetProc> fVertexArrayVertexAttribIOffset;
463         GrGLFunction<GrGLEnableVertexArrayProc> fEnableVertexArray;
464         GrGLFunction<GrGLDisableVertexArrayProc> fDisableVertexArray;
465         GrGLFunction<GrGLEnableVertexArrayAttribProc> fEnableVertexArrayAttrib;
466         GrGLFunction<GrGLDisableVertexArrayAttribProc> fDisableVertexArrayAttrib;
467         GrGLFunction<GrGLGetVertexArrayIntegervProc> fGetVertexArrayIntegerv;
468         GrGLFunction<GrGLGetVertexArrayPointervProc> fGetVertexArrayPointerv;
469         GrGLFunction<GrGLGetVertexArrayIntegeri_vProc> fGetVertexArrayIntegeri_v;
470         GrGLFunction<GrGLGetVertexArrayPointeri_vProc> fGetVertexArrayPointeri_v;
471         GrGLFunction<GrGLMapNamedBufferRangeProc> fMapNamedBufferRange;
472         GrGLFunction<GrGLFlushMappedNamedBufferRangeProc> fFlushMappedNamedBufferRange;
473 
474         /* KHR_debug */
475         GrGLFunction<GrGLDebugMessageControlProc> fDebugMessageControl;
476         GrGLFunction<GrGLDebugMessageInsertProc> fDebugMessageInsert;
477         GrGLFunction<GrGLDebugMessageCallbackProc> fDebugMessageCallback;
478         GrGLFunction<GrGLGetDebugMessageLogProc> fGetDebugMessageLog;
479         GrGLFunction<GrGLPushDebugGroupProc> fPushDebugGroup;
480         GrGLFunction<GrGLPopDebugGroupProc> fPopDebugGroup;
481         GrGLFunction<GrGLObjectLabelProc> fObjectLabel;
482 
483         /* EGL functions */
484         GrGLFunction<GrEGLCreateImageProc> fEGLCreateImage;
485         GrGLFunction<GrEGLDestroyImageProc> fEGLDestroyImage;
486     } fFunctions;
487 
488     // Per-GL func callback
489 #if GR_GL_PER_GL_FUNC_CALLBACK
490     GrGLInterfaceCallbackProc fCallback;
491     GrGLInterfaceCallbackData fCallbackData;
492 #endif
493 
494     // This exists for internal testing.
abandonGrGLInterface495     virtual void abandon() const {}
496 };
497 
498 #endif
499