1 /*
2  * Copyright 2019 Google LLC
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  * THIS FILE IS AUTOGENERATED
8  * Make edits to tools/gpu/gl/interface/templates.go or they will
9  * be overwritten.
10  */
11 
12 #include "include/gpu/gl/GrGLAssembleHelpers.h"
13 #include "include/gpu/gl/GrGLAssembleInterface.h"
14 #include "src/gpu/gl/GrGLUtil.h"
15 
16 #define GET_PROC(F) functions->f##F = (GrGL##F##Fn*)get(ctx, "gl" #F)
17 #define GET_PROC_SUFFIX(F, S) functions->f##F = (GrGL##F##Fn*)get(ctx, "gl" #F #S)
18 #define GET_PROC_LOCAL(F) GrGL##F##Fn* F = (GrGL##F##Fn*)get(ctx, "gl" #F)
19 
20 #define GET_EGL_PROC_SUFFIX(F, S) functions->fEGL##F = (GrEGL##F##Fn*)get(ctx, "egl" #F #S)
21 
22 #if SK_DISABLE_GL_ES_INTERFACE
GrGLMakeAssembledGLESInterface(void * ctx,GrGLGetProc get)23 sk_sp<const GrGLInterface> GrGLMakeAssembledGLESInterface(void *ctx, GrGLGetProc get) {
24     return nullptr;
25 }
26 #else
GrGLMakeAssembledGLESInterface(void * ctx,GrGLGetProc get)27 sk_sp<const GrGLInterface> GrGLMakeAssembledGLESInterface(void *ctx, GrGLGetProc get) {
28     GET_PROC_LOCAL(GetString);
29     if (nullptr == GetString) {
30         return nullptr;
31     }
32 
33     const char* verStr = reinterpret_cast<const char*>(GetString(GR_GL_VERSION));
34     GrGLVersion glVer = GrGLGetVersionFromString(verStr);
35 
36     if (glVer < GR_GL_VER(2,0)) {
37         return nullptr;
38     }
39 
40     GET_PROC_LOCAL(GetIntegerv);
41     GET_PROC_LOCAL(GetStringi);
42     GrEGLQueryStringFn* queryString;
43     GrEGLDisplay display;
44     GrGetEGLQueryAndDisplay(&queryString, &display, ctx, get);
45     GrGLExtensions extensions;
46     if (!extensions.init(kGLES_GrGLStandard, GetString, GetStringi, GetIntegerv, queryString,
47                          display)) {
48         return nullptr;
49     }
50 
51     sk_sp<GrGLInterface> interface(new GrGLInterface);
52     GrGLInterface::Functions* functions = &interface->fFunctions;
53 
54     // Autogenerated content follows
55     GET_PROC(ActiveTexture);
56     GET_PROC(AttachShader);
57     GET_PROC(BindAttribLocation);
58     GET_PROC(BindBuffer);
59     GET_PROC(BindTexture);
60     GET_PROC(BlendColor);
61     GET_PROC(BlendEquation);
62     GET_PROC(BlendFunc);
63     GET_PROC(BufferData);
64     GET_PROC(BufferSubData);
65     GET_PROC(Clear);
66     GET_PROC(ClearColor);
67     GET_PROC(ClearStencil);
68     GET_PROC(ColorMask);
69     GET_PROC(CompileShader);
70     GET_PROC(CompressedTexImage2D);
71     GET_PROC(CompressedTexSubImage2D);
72     GET_PROC(CopyTexSubImage2D);
73     GET_PROC(CreateProgram);
74     GET_PROC(CreateShader);
75     GET_PROC(CullFace);
76     GET_PROC(DeleteBuffers);
77     GET_PROC(DeleteProgram);
78     GET_PROC(DeleteShader);
79     GET_PROC(DeleteTextures);
80     GET_PROC(DepthMask);
81     GET_PROC(Disable);
82     GET_PROC(DisableVertexAttribArray);
83     GET_PROC(DrawArrays);
84     GET_PROC(DrawElements);
85     GET_PROC(Enable);
86     GET_PROC(EnableVertexAttribArray);
87     GET_PROC(Finish);
88     GET_PROC(Flush);
89     GET_PROC(FrontFace);
90     GET_PROC(GenBuffers);
91     GET_PROC(GenTextures);
92     GET_PROC(GetBufferParameteriv);
93     GET_PROC(GetError);
94     GET_PROC(GetIntegerv);
95     GET_PROC(GetProgramInfoLog);
96     GET_PROC(GetProgramiv);
97     GET_PROC(GetShaderInfoLog);
98     GET_PROC(GetShaderiv);
99     GET_PROC(GetString);
100     GET_PROC(GetUniformLocation);
101     GET_PROC(IsTexture);
102     GET_PROC(LineWidth);
103     GET_PROC(LinkProgram);
104     GET_PROC(PixelStorei);
105     GET_PROC(ReadPixels);
106     GET_PROC(Scissor);
107     GET_PROC(ShaderSource);
108     GET_PROC(StencilFunc);
109     GET_PROC(StencilFuncSeparate);
110     GET_PROC(StencilMask);
111     GET_PROC(StencilMaskSeparate);
112     GET_PROC(StencilOp);
113     GET_PROC(StencilOpSeparate);
114     GET_PROC(TexImage2D);
115     GET_PROC(TexParameterf);
116     GET_PROC(TexParameterfv);
117     GET_PROC(TexParameteri);
118     GET_PROC(TexParameteriv);
119     GET_PROC(TexSubImage2D);
120     GET_PROC(Uniform1f);
121     GET_PROC(Uniform1fv);
122     GET_PROC(Uniform1i);
123     GET_PROC(Uniform1iv);
124     GET_PROC(Uniform2f);
125     GET_PROC(Uniform2fv);
126     GET_PROC(Uniform2i);
127     GET_PROC(Uniform2iv);
128     GET_PROC(Uniform3f);
129     GET_PROC(Uniform3fv);
130     GET_PROC(Uniform3i);
131     GET_PROC(Uniform3iv);
132     GET_PROC(Uniform4f);
133     GET_PROC(Uniform4fv);
134     GET_PROC(Uniform4i);
135     GET_PROC(Uniform4iv);
136     GET_PROC(UniformMatrix2fv);
137     GET_PROC(UniformMatrix3fv);
138     GET_PROC(UniformMatrix4fv);
139     GET_PROC(UseProgram);
140     GET_PROC(VertexAttrib1f);
141     GET_PROC(VertexAttrib2fv);
142     GET_PROC(VertexAttrib3fv);
143     GET_PROC(VertexAttrib4fv);
144     GET_PROC(VertexAttribPointer);
145     GET_PROC(Viewport);
146 
147     if (glVer >= GR_GL_VER(3,0)) {
148         GET_PROC(GetStringi);
149     }
150 
151     if (glVer >= GR_GL_VER(3,0)) {
152         GET_PROC(BindVertexArray);
153         GET_PROC(DeleteVertexArrays);
154         GET_PROC(GenVertexArrays);
155     } else if (extensions.has("GL_OES_vertex_array_object")) {
156         GET_PROC_SUFFIX(BindVertexArray, OES);
157         GET_PROC_SUFFIX(DeleteVertexArrays, OES);
158         GET_PROC_SUFFIX(GenVertexArrays, OES);
159     }
160 
161     if (glVer >= GR_GL_VER(3,0) && extensions.has("GL_EXT_blend_func_extended")) {
162         GET_PROC_SUFFIX(BindFragDataLocation, EXT);
163     }
164 
165     if (glVer >= GR_GL_VER(3,0) && extensions.has("GL_EXT_blend_func_extended")) {
166         GET_PROC_SUFFIX(BindFragDataLocationIndexed, EXT);
167     }
168 
169     if (extensions.has("GL_KHR_blend_equation_advanced")) {
170         GET_PROC_SUFFIX(BlendBarrier, KHR);
171     } else if (extensions.has("GL_NV_blend_equation_advanced")) {
172         GET_PROC_SUFFIX(BlendBarrier, NV);
173     }
174 
175     if (extensions.has("GL_EXT_clear_texture")) {
176         GET_PROC_SUFFIX(ClearTexImage, EXT);
177         GET_PROC_SUFFIX(ClearTexSubImage, EXT);
178     }
179 
180     if (glVer >= GR_GL_VER(3,0)) {
181         GET_PROC(DrawArraysInstanced);
182         GET_PROC(DrawElementsInstanced);
183     } else if (extensions.has("GL_EXT_draw_instanced")) {
184         GET_PROC_SUFFIX(DrawArraysInstanced, EXT);
185         GET_PROC_SUFFIX(DrawElementsInstanced, EXT);
186     }
187 
188     if (glVer >= GR_GL_VER(3,0)) {
189         GET_PROC(DrawBuffers);
190         GET_PROC(ReadBuffer);
191     }
192 
193     if (glVer >= GR_GL_VER(3,1)) {
194         GET_PROC(DrawArraysIndirect);
195         GET_PROC(DrawElementsIndirect);
196     }
197 
198     if (glVer >= GR_GL_VER(3,0)) {
199         GET_PROC(DrawRangeElements);
200     }
201 
202     if (glVer >= GR_GL_VER(3,1)) {
203         GET_PROC(GetMultisamplefv);
204     }
205 
206     if (glVer >= GR_GL_VER(3,1)) {
207         GET_PROC(GetTexLevelParameteriv);
208     }
209 
210     if (extensions.has("GL_EXT_multi_draw_indirect")) {
211         GET_PROC_SUFFIX(MultiDrawArraysIndirect, EXT);
212         GET_PROC_SUFFIX(MultiDrawElementsIndirect, EXT);
213     }
214 
215     if (glVer >= GR_GL_VER(3,2)) {
216         GET_PROC(TexBuffer);
217     } else if (extensions.has("GL_OES_texture_buffer")) {
218         GET_PROC_SUFFIX(TexBuffer, OES);
219     } else if (extensions.has("GL_EXT_texture_buffer")) {
220         GET_PROC_SUFFIX(TexBuffer, EXT);
221     }
222 
223     if (glVer >= GR_GL_VER(3,2)) {
224         GET_PROC(TexBufferRange);
225     } else if (extensions.has("GL_OES_texture_buffer")) {
226         GET_PROC_SUFFIX(TexBufferRange, OES);
227     } else if (extensions.has("GL_EXT_texture_buffer")) {
228         GET_PROC_SUFFIX(TexBufferRange, EXT);
229     }
230 
231     if (glVer >= GR_GL_VER(3,0)) {
232         GET_PROC(TexStorage2D);
233     } else if (extensions.has("GL_EXT_texture_storage")) {
234         GET_PROC_SUFFIX(TexStorage2D, EXT);
235     }
236 
237     if (extensions.has("GL_NV_texture_barrier")) {
238         GET_PROC_SUFFIX(TextureBarrier, NV);
239     }
240 
241     if (extensions.has("GL_EXT_discard_framebuffer")) {
242         GET_PROC_SUFFIX(DiscardFramebuffer, EXT);
243     }
244 
245     if (extensions.has("GL_QCOM_tiled_rendering")) {
246         GET_PROC_SUFFIX(EndTiling, QCOM);
247         GET_PROC_SUFFIX(StartTiling, QCOM);
248     }
249 
250     if (glVer >= GR_GL_VER(3,0)) {
251         GET_PROC(VertexAttribDivisor);
252     } else if (extensions.has("GL_EXT_instanced_arrays")) {
253         GET_PROC_SUFFIX(VertexAttribDivisor, EXT);
254     }
255 
256     if (glVer >= GR_GL_VER(3,0)) {
257         GET_PROC(VertexAttribIPointer);
258     }
259 
260     GET_PROC(BindFramebuffer);
261     GET_PROC(BindRenderbuffer);
262     GET_PROC(CheckFramebufferStatus);
263     GET_PROC(DeleteFramebuffers);
264     GET_PROC(DeleteRenderbuffers);
265     GET_PROC(FramebufferRenderbuffer);
266     GET_PROC(FramebufferTexture2D);
267     GET_PROC(GenFramebuffers);
268     GET_PROC(GenRenderbuffers);
269     GET_PROC(GenerateMipmap);
270     GET_PROC(GetFramebufferAttachmentParameteriv);
271     GET_PROC(GetRenderbufferParameteriv);
272     GET_PROC(RenderbufferStorage);
273 
274     if (glVer >= GR_GL_VER(3,0)) {
275         GET_PROC(BlitFramebuffer);
276     } else if (extensions.has("GL_CHROMIUM_framebuffer_multisample")) {
277         GET_PROC_SUFFIX(BlitFramebuffer, CHROMIUM);
278     } else if (extensions.has("GL_ANGLE_framebuffer_blit")) {
279         GET_PROC_SUFFIX(BlitFramebuffer, ANGLE);
280     }
281 
282     if (glVer >= GR_GL_VER(3,0)) {
283         GET_PROC(RenderbufferStorageMultisample);
284     } else if (extensions.has("GL_CHROMIUM_framebuffer_multisample")) {
285         GET_PROC_SUFFIX(RenderbufferStorageMultisample, CHROMIUM);
286     } else if (extensions.has("GL_ANGLE_framebuffer_multisample")) {
287         GET_PROC_SUFFIX(RenderbufferStorageMultisample, ANGLE);
288     }
289 
290     if (extensions.has("GL_CHROMIUM_map_sub")) {
291         GET_PROC_SUFFIX(MapBufferSubData, CHROMIUM);
292         GET_PROC_SUFFIX(MapTexSubImage2D, CHROMIUM);
293         GET_PROC_SUFFIX(UnmapBufferSubData, CHROMIUM);
294         GET_PROC_SUFFIX(UnmapTexSubImage2D, CHROMIUM);
295     }
296 
297     if (extensions.has("GL_EXT_multisampled_render_to_texture")) {
298         GET_PROC_SUFFIX(FramebufferTexture2DMultisample, EXT);
299     } else if (extensions.has("GL_IMG_multisampled_render_to_texture")) {
300         GET_PROC_SUFFIX(FramebufferTexture2DMultisample, IMG);
301     }
302 
303     if (extensions.has("GL_EXT_multisampled_render_to_texture")) {
304         functions->fRenderbufferStorageMultisampleES2EXT =(GrGLRenderbufferStorageMultisampleFn*)get(ctx, "glRenderbufferStorageMultisampleEXT");
305     }
306 
307     if (extensions.has("GL_IMG_multisampled_render_to_texture")) {
308         functions->fRenderbufferStorageMultisampleES2EXT =(GrGLRenderbufferStorageMultisampleFn*)get(ctx, "glRenderbufferStorageMultisampleIMG");
309     }
310 
311     if (extensions.has("GL_APPLE_framebuffer_multisample")) {
312         GET_PROC_SUFFIX(ResolveMultisampleFramebuffer, APPLE);
313         functions->fRenderbufferStorageMultisampleES2APPLE =(GrGLRenderbufferStorageMultisampleFn*)get(ctx, "glRenderbufferStorageMultisampleAPPLE");
314     }
315 
316     if (extensions.has("GL_OES_mapbuffer")) {
317         GET_PROC_SUFFIX(MapBuffer, OES);
318     }
319 
320     if (glVer >= GR_GL_VER(3,0)) {
321         GET_PROC(UnmapBuffer);
322     } else if (extensions.has("GL_OES_mapbuffer")) {
323         GET_PROC_SUFFIX(UnmapBuffer, OES);
324     }
325 
326     if (glVer >= GR_GL_VER(3,0)) {
327         GET_PROC(FlushMappedBufferRange);
328         GET_PROC(MapBufferRange);
329     } else if (extensions.has("GL_EXT_map_buffer_range")) {
330         GET_PROC_SUFFIX(FlushMappedBufferRange, EXT);
331         GET_PROC_SUFFIX(MapBufferRange, EXT);
332     }
333 
334     if (extensions.has("GL_EXT_debug_marker")) {
335         GET_PROC_SUFFIX(InsertEventMarker, EXT);
336         GET_PROC_SUFFIX(PopGroupMarker, EXT);
337         GET_PROC_SUFFIX(PushGroupMarker, EXT);
338     }
339 
340     if (glVer >= GR_GL_VER(3,1)) {
341         GET_PROC(GetProgramResourceLocation);
342     }
343 
344     if (extensions.has("GL_CHROMIUM_path_rendering")) {
345         GET_PROC_SUFFIX(MatrixLoadIdentity, CHROMIUM);
346         GET_PROC_SUFFIX(MatrixLoadf, CHROMIUM);
347     } else if (extensions.has("GL_NV_path_rendering")) {
348         GET_PROC_SUFFIX(MatrixLoadIdentity, EXT);
349         GET_PROC_SUFFIX(MatrixLoadf, EXT);
350     }
351 
352     if (extensions.has("GL_CHROMIUM_path_rendering")) {
353         GET_PROC_SUFFIX(CoverFillPath, CHROMIUM);
354         GET_PROC_SUFFIX(CoverFillPathInstanced, CHROMIUM);
355         GET_PROC_SUFFIX(CoverStrokePath, CHROMIUM);
356         GET_PROC_SUFFIX(CoverStrokePathInstanced, CHROMIUM);
357         GET_PROC_SUFFIX(DeletePaths, CHROMIUM);
358         GET_PROC_SUFFIX(GenPaths, CHROMIUM);
359         GET_PROC_SUFFIX(IsPath, CHROMIUM);
360         GET_PROC_SUFFIX(PathCommands, CHROMIUM);
361         GET_PROC_SUFFIX(PathParameterf, CHROMIUM);
362         GET_PROC_SUFFIX(PathParameteri, CHROMIUM);
363         GET_PROC_SUFFIX(PathStencilFunc, CHROMIUM);
364         GET_PROC_SUFFIX(ProgramPathFragmentInputGen, CHROMIUM);
365         GET_PROC_SUFFIX(StencilFillPath, CHROMIUM);
366         GET_PROC_SUFFIX(StencilFillPathInstanced, CHROMIUM);
367         GET_PROC_SUFFIX(StencilStrokePath, CHROMIUM);
368         GET_PROC_SUFFIX(StencilStrokePathInstanced, CHROMIUM);
369         GET_PROC_SUFFIX(StencilThenCoverFillPath, CHROMIUM);
370         GET_PROC_SUFFIX(StencilThenCoverFillPathInstanced, CHROMIUM);
371         GET_PROC_SUFFIX(StencilThenCoverStrokePath, CHROMIUM);
372         GET_PROC_SUFFIX(StencilThenCoverStrokePathInstanced, CHROMIUM);
373     } else if (extensions.has("GL_NV_path_rendering")) {
374         GET_PROC_SUFFIX(CoverFillPath, NV);
375         GET_PROC_SUFFIX(CoverFillPathInstanced, NV);
376         GET_PROC_SUFFIX(CoverStrokePath, NV);
377         GET_PROC_SUFFIX(CoverStrokePathInstanced, NV);
378         GET_PROC_SUFFIX(DeletePaths, NV);
379         GET_PROC_SUFFIX(GenPaths, NV);
380         GET_PROC_SUFFIX(IsPath, NV);
381         GET_PROC_SUFFIX(PathCommands, NV);
382         GET_PROC_SUFFIX(PathParameterf, NV);
383         GET_PROC_SUFFIX(PathParameteri, NV);
384         GET_PROC_SUFFIX(PathStencilFunc, NV);
385         GET_PROC_SUFFIX(ProgramPathFragmentInputGen, NV);
386         GET_PROC_SUFFIX(StencilFillPath, NV);
387         GET_PROC_SUFFIX(StencilFillPathInstanced, NV);
388         GET_PROC_SUFFIX(StencilStrokePath, NV);
389         GET_PROC_SUFFIX(StencilStrokePathInstanced, NV);
390         GET_PROC_SUFFIX(StencilThenCoverFillPath, NV);
391         GET_PROC_SUFFIX(StencilThenCoverFillPathInstanced, NV);
392         GET_PROC_SUFFIX(StencilThenCoverStrokePath, NV);
393         GET_PROC_SUFFIX(StencilThenCoverStrokePathInstanced, NV);
394     }
395 
396     if (extensions.has("GL_CHROMIUM_path_rendering")) {
397         GET_PROC_SUFFIX(BindFragmentInputLocation, CHROMIUM);
398     }
399 
400     if (extensions.has("GL_CHROMIUM_framebuffer_mixed_samples")) {
401         GET_PROC_SUFFIX(CoverageModulation, CHROMIUM);
402     } else if (extensions.has("GL_NV_framebuffer_mixed_samples")) {
403         GET_PROC_SUFFIX(CoverageModulation, NV);
404     }
405 
406     if (extensions.has("GL_KHR_debug")) {
407         GET_PROC_SUFFIX(DebugMessageCallback, KHR);
408         GET_PROC_SUFFIX(DebugMessageControl, KHR);
409         GET_PROC_SUFFIX(DebugMessageInsert, KHR);
410         GET_PROC_SUFFIX(GetDebugMessageLog, KHR);
411         GET_PROC_SUFFIX(ObjectLabel, KHR);
412         GET_PROC_SUFFIX(PopDebugGroup, KHR);
413         GET_PROC_SUFFIX(PushDebugGroup, KHR);
414     }
415 
416     if (extensions.has("GL_CHROMIUM_bind_uniform_location")) {
417         GET_PROC_SUFFIX(BindUniformLocation, CHROMIUM);
418     }
419 
420     if (extensions.has("GL_EXT_window_rectangles")) {
421         GET_PROC_SUFFIX(WindowRectangles, EXT);
422     }
423 
424     if (glVer >= GR_GL_VER(3,0)) {
425         GET_PROC(ClientWaitSync);
426         GET_PROC(DeleteSync);
427         GET_PROC(FenceSync);
428         GET_PROC(IsSync);
429         GET_PROC(WaitSync);
430     } else if (extensions.has("GL_APPLE_sync")) {
431         GET_PROC_SUFFIX(ClientWaitSync, APPLE);
432         GET_PROC_SUFFIX(DeleteSync, APPLE);
433         GET_PROC_SUFFIX(FenceSync, APPLE);
434         GET_PROC_SUFFIX(IsSync, APPLE);
435         GET_PROC_SUFFIX(WaitSync, APPLE);
436     }
437 
438     if (glVer >= GR_GL_VER(3,0)) {
439         GET_PROC(GetInternalformativ);
440     }
441 
442     if (glVer >= GR_GL_VER(3,0)) {
443         GET_PROC(GetProgramBinary);
444         GET_PROC(ProgramBinary);
445     } else if (extensions.has("GL_OES_get_program_binary")) {
446         GET_PROC_SUFFIX(GetProgramBinary, OES);
447         GET_PROC_SUFFIX(ProgramBinary, OES);
448     }
449 
450     if (glVer >= GR_GL_VER(3,0)) {
451         GET_PROC(ProgramParameteri);
452     }
453 
454     if (glVer >= GR_GL_VER(3,0)) {
455         GET_PROC(BindSampler);
456         GET_PROC(DeleteSamplers);
457         GET_PROC(GenSamplers);
458         GET_PROC(SamplerParameteri);
459         GET_PROC(SamplerParameteriv);
460     }
461 
462     if (glVer >= GR_GL_VER(3,0)) {
463 #if GR_TEST_UTILS
464         GET_PROC(BeginQuery);
465         GET_PROC(DeleteQueries);
466         GET_PROC(EndQuery);
467         GET_PROC(GenQueries);
468         GET_PROC(GetQueryObjectuiv);
469         GET_PROC(GetQueryiv);
470 #endif
471     } else if (extensions.has("GL_EXT_occlusion_query_boolean")) {
472 #if GR_TEST_UTILS
473         GET_PROC_SUFFIX(BeginQuery, EXT);
474         GET_PROC_SUFFIX(DeleteQueries, EXT);
475         GET_PROC_SUFFIX(EndQuery, EXT);
476         GET_PROC_SUFFIX(GenQueries, EXT);
477         GET_PROC_SUFFIX(GetQueryObjectuiv, EXT);
478         GET_PROC_SUFFIX(GetQueryiv, EXT);
479 #endif
480     }
481 
482     if (glVer >= GR_GL_VER(3,0)) {
483         GET_PROC(InvalidateFramebuffer);
484         GET_PROC(InvalidateSubFramebuffer);
485     }
486 
487     GET_PROC(GetShaderPrecisionFormat);
488 
489 
490     // End autogenerated content
491     // TODO(kjlubick): Do we want a feature that removes the extension if it doesn't have
492     // the function? This is common on some low-end GPUs.
493 
494     if (extensions.has("GL_KHR_debug")) {
495         // In general we have a policy against removing extension strings when the driver does
496         // not provide function pointers for an advertised extension. However, because there is a
497         // known device that advertises GL_KHR_debug but fails to provide the functions and this is
498         // a debugging- only extension we've made an exception. This also can happen when using
499         // APITRACE.
500         if (!interface->fFunctions.fDebugMessageControl) {
501             extensions.remove("GL_KHR_debug");
502         }
503     }
504     interface->fStandard = kGLES_GrGLStandard;
505     interface->fExtensions.swap(&extensions);
506 
507     return interface;
508 }
509 #endif
510