root/ui/gl/gl_bindings_skia_in_process.cc

DEFINITIONS

1. StubGLActiveTexture
2. StubGLAttachShader
3. StubGLBeginQuery
4. StubGLBindAttribLocation
5. StubGLBindBuffer
6. StubGLBindFragDataLocation
7. StubGLBindFragDataLocationIndexed
8. StubGLBindFramebuffer
9. StubGLBindRenderbuffer
10. StubGLBindTexture
11. StubGLBindVertexArray
12. StubGLBlendColor
13. StubGLBlendFunc
14. StubGLBlitFramebuffer
15. StubGLBufferData
16. StubGLBufferSubData
17. StubGLCheckFramebufferStatus
18. StubGLClear
19. StubGLClearColor
20. StubGLClearStencil
21. StubGLColorMask
22. StubGLCompileShader
23. StubGLCompressedTexImage2D
24. StubGLCopyTexSubImage2D
25. StubGLCreateProgram
26. StubGLCreateShader
27. StubGLCullFace
28. StubGLDeleteBuffers
29. StubGLDeleteFramebuffers
30. StubGLDeleteQueries
31. StubGLDeleteProgram
32. StubGLDeleteRenderbuffers
33. StubGLDeleteShader
34. StubGLDeleteTextures
35. StubGLDeleteVertexArrays
36. StubGLDepthMask
37. StubGLDisable
38. StubGLDisableVertexAttribArray
39. StubGLDiscardFramebuffer
40. StubGLDrawArrays
41. StubGLDrawBuffer
42. StubGLDrawBuffers
43. StubGLDrawElements
44. StubGLEnable
45. StubGLEnableVertexAttribArray
46. StubGLEndQuery
47. StubGLFinish
48. StubGLFlush
49. StubGLFramebufferRenderbuffer
50. StubGLFramebufferTexture2D
51. StubGLFramebufferTexture2DMultisample
52. StubGLFrontFace
53. StubGLGenBuffers
54. StubGLGenFramebuffers
55. StubGLGenQueries
56. StubGLGenRenderbuffers
57. StubGLGenTextures
58. StubGLGenVertexArrays
59. StubGLGetBufferParameteriv
60. StubGLGetFramebufferAttachmentParameteriv
61. StubGLGetError
62. StubGLGetIntegerv
63. StubGLGetProgramInfoLog
64. StubGLGetProgramiv
65. StubGLGetRenderbufferParameteriv
66. StubGLGetShaderInfoLog
67. StubGLGetShaderiv
68. StubGLGetString
69. StubGLGetQueryiv
70. StubGLGetQueryObjecti64v
71. StubGLGetQueryObjectiv
72. StubGLGetQueryObjectui64v
73. StubGLGetQueryObjectuiv
74. StubGLGetTexLevelParameteriv
75. StubGLGetUniformLocation
76. StubGLInsertEventMarker
77. StubGLLineWidth
78. StubGLLinkProgram
79. StubGLMapBuffer
80. StubGLPixelStorei
81. StubGLPopGroupMarker
82. StubGLPushGroupMarker
83. StubGLQueryCounter
84. StubGLReadBuffer
85. StubGLReadPixels
86. StubGLRenderbufferStorage
87. StubGLRenderbufferStorageMultisample
88. StubGLScissor
89. StubGLShaderSource
90. StubGLStencilFunc
91. StubGLStencilFuncSeparate
92. StubGLStencilMask
93. StubGLStencilMaskSeparate
94. StubGLStencilOp
95. StubGLStencilOpSeparate
96. StubGLTexImage2D
97. StubGLTexParameteri
98. StubGLTexParameteriv
99. StubGLTexStorage2D
100. StubGLTexSubImage2D
101. StubGLUniform1f
102. StubGLUniform1i
103. StubGLUniform1fv
104. StubGLUniform1iv
105. StubGLUniform2f
106. StubGLUniform2i
107. StubGLUniform2fv
108. StubGLUniform2iv
109. StubGLUniform3f
110. StubGLUniform3i
111. StubGLUniform3fv
112. StubGLUniform3iv
113. StubGLUniform4f
114. StubGLUniform4i
115. StubGLUniform4fv
116. StubGLUniform4iv
117. StubGLUniformMatrix2fv
118. StubGLUniformMatrix3fv
119. StubGLUniformMatrix4fv
120. StubGLUnmapBuffer
121. StubGLUseProgram
122. StubGLVertexAttrib4fv
123. StubGLVertexAttribPointer
124. StubGLViewport
125. CreateInProcessSkiaGLBinding

// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.


#include "ui/gl/gl_bindings_skia_in_process.h"

#include "base/logging.h"
#include "third_party/skia/include/gpu/gl/GrGLInterface.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_implementation.h"

namespace {

extern "C" {
// The following stub functions are required because the glXXX routines exported
// via gl_bindings.h use call-type GL_BINDING_CALL, which on Windows is stdcall.
// Skia has been built such that its GrGLInterface GL pointers are __cdecl.

GLvoid StubGLActiveTexture(GLenum texture) {
  glActiveTexture(texture);
}

GLvoid StubGLAttachShader(GLuint program, GLuint shader) {
  glAttachShader(program, shader);
}

GLvoid StubGLBeginQuery(GLenum target, GLuint id) {
  glBeginQuery(target, id);
}

GLvoid StubGLBindAttribLocation(GLuint program, GLuint index,
                                const char* name) {
  glBindAttribLocation(program, index, name);
}

GLvoid StubGLBindBuffer(GLenum target, GLuint buffer) {
  glBindBuffer(target, buffer);
}

GLvoid StubGLBindFragDataLocation(GLuint program, GLuint colorNumber,
                                  const GLchar * name) {
  glBindFragDataLocation(program, colorNumber, name);
}

GLvoid StubGLBindFragDataLocationIndexed(GLuint program, GLuint colorNumber,
                                         GLuint index, const GLchar * name) {
  glBindFragDataLocationIndexed(program, colorNumber, index, name);
}

GLvoid StubGLBindFramebuffer(GLenum target, GLuint framebuffer) {
  glBindFramebufferEXT(target, framebuffer);
}

GLvoid StubGLBindRenderbuffer(GLenum target, GLuint renderbuffer) {
  glBindRenderbufferEXT(target, renderbuffer);
}

GLvoid StubGLBindTexture(GLenum target, GLuint texture) {
  glBindTexture(target, texture);
}

GLvoid StubGLBindVertexArray(GLuint array) {
  glBindVertexArrayOES(array);
}

GLvoid StubGLBlendColor(GLclampf red, GLclampf green, GLclampf blue,
                        GLclampf alpha) {
  glBlendColor(red, green, blue, alpha);
}

GLvoid StubGLBlendFunc(GLenum sfactor, GLenum dfactor) {
  glBlendFunc(sfactor, dfactor);
}

GLvoid StubGLBlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
                             GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
                             GLbitfield mask, GLenum filter) {
  glBlitFramebufferEXT(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1,
                       mask, filter);
}

GLvoid StubGLBufferData(GLenum target, GLsizeiptr size, const void* data,
                        GLenum usage) {
  glBufferData(target, size, data, usage);
}

GLvoid StubGLBufferSubData(GLenum target, GLintptr offset, GLsizeiptr size,
                           const void* data) {
  glBufferSubData(target, offset, size, data);
}

GLenum StubGLCheckFramebufferStatus(GLenum target) {
  return glCheckFramebufferStatusEXT(target);
}

GLvoid StubGLClear(GLbitfield mask) {
  glClear(mask);
}

GLvoid StubGLClearColor(GLclampf red, GLclampf green, GLclampf blue,
                        GLclampf alpha) {
  glClearColor(red, green, blue, alpha);
}

GLvoid StubGLClearStencil(GLint s) {
  glClearStencil(s);
}

GLvoid StubGLColorMask(GLboolean red, GLboolean green, GLboolean blue,
                       GLboolean alpha) {
  glColorMask(red, green, blue, alpha);
}

GLvoid StubGLCompileShader(GLuint shader) {
  glCompileShader(shader);
}

GLvoid StubGLCompressedTexImage2D(GLenum target, GLint level,
                                  GLenum internalformat, GLsizei width,
                                  GLsizei height, GLint border,
                                  GLsizei imageSize, const void* data) {
  glCompressedTexImage2D(target, level, internalformat, width, height, border,
                         imageSize, data);
}

GLvoid StubGLCopyTexSubImage2D(GLenum target, GLint level,
                               GLint xoffset, GLint yoffset,
                               GLint x, GLint y,
                               GLsizei width, GLsizei height) {
  glCopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
}

GLuint StubGLCreateProgram(void) {
  return glCreateProgram();
}

GLuint StubGLCreateShader(GLenum type) {
  return glCreateShader(type);
}

GLvoid StubGLCullFace(GLenum mode) {
  glCullFace(mode);
}

GLvoid StubGLDeleteBuffers(GLsizei n, const GLuint* buffers) {
  glDeleteBuffersARB(n, buffers);
}

GLvoid StubGLDeleteFramebuffers(GLsizei n, const GLuint* framebuffers) {
  glDeleteFramebuffersEXT(n, framebuffers);
}

GLvoid StubGLDeleteQueries(GLsizei n, const GLuint* ids) {
  glDeleteQueries(n, ids);
}

GLvoid StubGLDeleteProgram(GLuint program) {
  glDeleteProgram(program);
}

GLvoid StubGLDeleteRenderbuffers(GLsizei n, const GLuint* renderbuffers) {
  glDeleteRenderbuffersEXT(n, renderbuffers);
}

GLvoid StubGLDeleteShader(GLuint shader) {
  glDeleteShader(shader);
}

GLvoid StubGLDeleteTextures(GLsizei n, const GLuint* textures) {
  glDeleteTextures(n, textures);
}

GLvoid StubGLDeleteVertexArrays(GLsizei n, const GLuint* arrays) {
  glDeleteVertexArraysOES(n, arrays);
}

GLvoid StubGLDepthMask(GLboolean flag) {
  glDepthMask(flag);
}

GLvoid StubGLDisable(GLenum cap) {
  glDisable(cap);
}

GLvoid StubGLDisableVertexAttribArray(GLuint index) {
  glDisableVertexAttribArray(index);
}

GLvoid StubGLDiscardFramebuffer(GLenum target, GLsizei numAttachments,
                                const GLenum *attachments) {
  glDiscardFramebufferEXT(target, numAttachments, attachments);
}

GLvoid StubGLDrawArrays(GLenum mode, GLint first, GLsizei count) {
  glDrawArrays(mode, first, count);
}

GLvoid StubGLDrawBuffer(GLenum mode) {
  glDrawBuffer(mode);
}

GLvoid StubGLDrawBuffers(GLsizei n, const GLenum* bufs) {
  glDrawBuffersARB(n, bufs);
}

GLvoid StubGLDrawElements(GLenum mode, GLsizei count, GLenum type,
                          const void* indices) {
  glDrawElements(mode, count, type, indices);
}

GLvoid StubGLEnable(GLenum cap) {
  glEnable(cap);
}

GLvoid StubGLEnableVertexAttribArray(GLuint index) {
  glEnableVertexAttribArray(index);
}

GLvoid StubGLEndQuery(GLenum target) {
  glEndQuery(target);
}

GLvoid StubGLFinish() {
  glFinish();
}

GLvoid StubGLFlush() {
  glFlush();
}

GLvoid StubGLFramebufferRenderbuffer(GLenum target, GLenum attachment,
                                     GLenum renderbuffertarget,
                                     GLuint renderbuffer) {
  glFramebufferRenderbufferEXT(target, attachment, renderbuffertarget,
                               renderbuffer);
}

GLvoid StubGLFramebufferTexture2D(GLenum target, GLenum attachment,
                                  GLenum textarget, GLuint texture,
                                  GLint level) {
  glFramebufferTexture2DEXT(target, attachment, textarget, texture, level);
}

GLvoid StubGLFramebufferTexture2DMultisample(GLenum target, GLenum attachment,
                                  GLenum textarget, GLuint texture,
                                  GLint level, GLsizei samples) {
  glFramebufferTexture2DMultisampleEXT(target, attachment, textarget, texture,
      level, samples);
}

GLvoid StubGLFrontFace(GLenum mode) {
  glFrontFace(mode);
}

GLvoid StubGLGenBuffers(GLsizei n, GLuint* buffers) {
  glGenBuffersARB(n, buffers);
}

GLvoid StubGLGenFramebuffers(GLsizei n, GLuint* framebuffers) {
  glGenFramebuffersEXT(n, framebuffers);
}

GLvoid StubGLGenQueries(GLsizei n, GLuint* ids) {
  glGenQueries(n, ids);
}

GLvoid StubGLGenRenderbuffers(GLsizei n, GLuint* renderbuffers) {
  glGenRenderbuffersEXT(n, renderbuffers);
}

GLvoid StubGLGenTextures(GLsizei n, GLuint* textures) {
  glGenTextures(n, textures);
}

GLvoid StubGLGenVertexArrays(GLsizei n, GLuint* arrays) {
  glGenVertexArraysOES(n, arrays);
}

GLvoid StubGLGetBufferParameteriv(GLenum target, GLenum pname, GLint* params) {
  glGetBufferParameteriv(target, pname, params);
}

GLvoid StubGLGetFramebufferAttachmentParameteriv(GLenum target,
                                                 GLenum attachment,
                                                 GLenum pname, GLint* params) {
  glGetFramebufferAttachmentParameterivEXT(target, attachment, pname, params);
}

GLenum StubGLGetError() {
  return glGetError();
}

GLvoid StubGLGetIntegerv(GLenum pname, GLint* params) {
  glGetIntegerv(pname, params);
}

GLvoid StubGLGetProgramInfoLog(GLuint program, GLsizei bufsize, GLsizei* length,
                               char* infolog) {
  glGetProgramInfoLog(program, bufsize, length, infolog);
}

GLvoid StubGLGetProgramiv(GLuint program, GLenum pname, GLint* params) {
  glGetProgramiv(program, pname, params);
}

GLvoid StubGLGetRenderbufferParameteriv(GLenum target,
                                        GLenum pname, GLint* params) {
  glGetRenderbufferParameterivEXT(target, pname, params);
}

GLvoid StubGLGetShaderInfoLog(GLuint shader, GLsizei bufsize, GLsizei* length,
                              char* infolog) {
  glGetShaderInfoLog(shader, bufsize, length, infolog);
}

GLvoid StubGLGetShaderiv(GLuint shader, GLenum pname, GLint* params) {
  glGetShaderiv(shader, pname, params);
}

const GLubyte* StubGLGetString(GLenum name) {
  return glGetString(name);
}

GLvoid StubGLGetQueryiv(GLenum target, GLenum pname, GLint* params) {
  glGetQueryiv(target, pname, params);
}

GLvoid StubGLGetQueryObjecti64v(GLuint id, GLenum pname, GLint64* params) {
  glGetQueryObjecti64v(id, pname, params);
}

GLvoid StubGLGetQueryObjectiv(GLuint id, GLenum pname, GLint* params) {
  glGetQueryObjectiv(id, pname, params);
}

GLvoid StubGLGetQueryObjectui64v(GLuint id, GLenum pname, GLuint64* params) {
  glGetQueryObjectui64v(id, pname, params);
}

GLvoid StubGLGetQueryObjectuiv(GLuint id, GLenum pname, GLuint* params) {
  glGetQueryObjectuiv(id, pname, params);
}

GLvoid StubGLGetTexLevelParameteriv(GLenum target, GLint level,
                                    GLenum pname, GLint* params) {
  glGetTexLevelParameteriv(target, level, pname, params);
}

GLint StubGLGetUniformLocation(GLuint program, const char* name) {
  return glGetUniformLocation(program, name);
}

GLvoid StubGLInsertEventMarker(GLsizei length, const char* marker) {
  glInsertEventMarkerEXT(length, marker);
}

GLvoid StubGLLineWidth(GLfloat width) {
  glLineWidth(width);
}

GLvoid StubGLLinkProgram(GLuint program) {
  glLinkProgram(program);
}

void* StubGLMapBuffer(GLenum target, GLenum access) {
  return glMapBuffer(target, access);
}

GLvoid StubGLPixelStorei(GLenum pname, GLint param) {
  glPixelStorei(pname, param);
}

GLvoid StubGLPopGroupMarker() {
  glPopGroupMarkerEXT();
}

GLvoid StubGLPushGroupMarker(GLsizei length, const char* marker) {
  glPushGroupMarkerEXT(length, marker);
}

GLvoid StubGLQueryCounter(GLuint id, GLenum target) {
  glQueryCounter(id, target);
}

GLvoid StubGLReadBuffer(GLenum src) {
  glReadBuffer(src);
}

GLvoid StubGLReadPixels(GLint x, GLint y, GLsizei width, GLsizei height,
                        GLenum format, GLenum type, void* pixels) {
  glReadPixels(x, y, width, height, format, type, pixels);
}

GLvoid StubGLRenderbufferStorage(GLenum target, GLenum internalformat,
                                 GLsizei width, GLsizei height) {
  glRenderbufferStorageEXT(target, internalformat, width, height);
}

GLvoid StubGLRenderbufferStorageMultisample(GLenum target, GLsizei samples,
                                            GLenum internalformat,
                                            GLsizei width, GLsizei height) {
  glRenderbufferStorageMultisampleEXT(target, samples, internalformat, width,
                                      height);
}

GLvoid StubGLScissor(GLint x, GLint y, GLsizei width, GLsizei height) {
  glScissor(x, y, width, height);
}

GLvoid StubGLShaderSource(GLuint shader, GLsizei count, const char* const* str,
                          const GLint* length) {
  glShaderSource(shader, count, str, length);
}

GLvoid StubGLStencilFunc(GLenum func, GLint ref, GLuint mask) {
  glStencilFunc(func, ref, mask);
}

GLvoid StubGLStencilFuncSeparate(GLenum face, GLenum func, GLint ref,
                                 GLuint mask) {
  glStencilFuncSeparate(face, func, ref, mask);
}

GLvoid StubGLStencilMask(GLuint mask) {
  glStencilMask(mask);
}

GLvoid StubGLStencilMaskSeparate(GLenum face, GLuint mask) {
  glStencilMaskSeparate(face, mask);
}

GLvoid StubGLStencilOp(GLenum fail, GLenum zfail, GLenum zpass) {
  glStencilOp(fail, zfail, zpass);
}

GLvoid StubGLStencilOpSeparate(GLenum face, GLenum fail, GLenum zfail,
                               GLenum zpass) {
  glStencilOpSeparate(face, fail, zfail, zpass);
}

GLvoid StubGLTexImage2D(GLenum target, GLint level, GLint internalformat,
                        GLsizei width, GLsizei height, GLint border,
                        GLenum format, GLenum type, const void* pixels) {
  glTexImage2D(target, level, internalformat, width, height, border, format,
               type, pixels);
}

GLvoid StubGLTexParameteri(GLenum target, GLenum pname, GLint param) {
  glTexParameteri(target, pname, param);
}

GLvoid StubGLTexParameteriv(GLenum target, GLenum pname, const GLint* params) {
  glTexParameteriv(target, pname, params);
}

GLvoid StubGLTexStorage2D(GLenum target, GLsizei levels, GLenum internalFormat,
                          GLsizei width, GLsizei height) {
  glTexStorage2DEXT(target, levels, internalFormat, width, height);
}

GLvoid StubGLTexSubImage2D(GLenum target, GLint level, GLint xoffset,
                           GLint yoffset, GLsizei width, GLsizei height,
                           GLenum format, GLenum type, const void* pixels) {
  glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type,
                  pixels);
}

GLvoid StubGLUniform1f(GLint location, GLfloat v) {
  glUniform1i(location, v);
}

GLvoid StubGLUniform1i(GLint location, GLint v) {
  glUniform1i(location, v);
}

GLvoid StubGLUniform1fv(GLint location, GLsizei count, const GLfloat* v) {
  glUniform1fv(location, count, v);
}

GLvoid StubGLUniform1iv(GLint location, GLsizei count, const GLint* v) {
  glUniform1iv(location, count, v);
}

GLvoid StubGLUniform2f(GLint location, GLfloat v0, GLfloat v1) {
  glUniform2i(location, v0, v1);
}

GLvoid StubGLUniform2i(GLint location, GLint v0, GLint v1) {
  glUniform2i(location, v0, v1);
}

GLvoid StubGLUniform2fv(GLint location, GLsizei count, const GLfloat* v) {
  glUniform2fv(location, count, v);
}

GLvoid StubGLUniform2iv(GLint location, GLsizei count, const GLint* v) {
  glUniform2iv(location, count, v);
}

GLvoid StubGLUniform3f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2) {
  glUniform3i(location, v0, v1, v2);
}

GLvoid StubGLUniform3i(GLint location, GLint v0, GLint v1, GLint v2) {
  glUniform3i(location, v0, v1, v2);
}

GLvoid StubGLUniform3fv(GLint location, GLsizei count, const GLfloat* v) {
  glUniform3fv(location, count, v);
}

GLvoid StubGLUniform3iv(GLint location, GLsizei count, const GLint* v) {
  glUniform3iv(location, count, v);
}

GLvoid StubGLUniform4f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2,
                       GLfloat v3) {
  glUniform4i(location, v0, v1, v2, v3);
}

GLvoid StubGLUniform4i(GLint location, GLint v0, GLint v1, GLint v2,
                       GLint v3) {
  glUniform4i(location, v0, v1, v2, v3);
}

GLvoid StubGLUniform4fv(GLint location, GLsizei count, const GLfloat* v) {
  glUniform4fv(location, count, v);
}

GLvoid StubGLUniform4iv(GLint location, GLsizei count, const GLint* v) {
  glUniform4iv(location, count, v);
}

GLvoid StubGLUniformMatrix2fv(GLint location, GLsizei count,
                              GLboolean transpose, const GLfloat* value) {
  glUniformMatrix2fv(location, count, transpose, value);
}

GLvoid StubGLUniformMatrix3fv(GLint location, GLsizei count,
                              GLboolean transpose, const GLfloat* value) {
  glUniformMatrix3fv(location, count, transpose, value);
}

GLvoid StubGLUniformMatrix4fv(GLint location, GLsizei count,
                              GLboolean transpose, const GLfloat* value) {
  glUniformMatrix4fv(location, count, transpose, value);
}

GLboolean StubGLUnmapBuffer(GLenum target) {
  return glUnmapBuffer(target);
}

GLvoid StubGLUseProgram(GLuint program) {
  glUseProgram(program);
}

GLvoid StubGLVertexAttrib4fv(GLuint indx, const GLfloat* values) {
  glVertexAttrib4fv(indx, values);
}

GLvoid StubGLVertexAttribPointer(GLuint indx, GLint size, GLenum type,
                                 GLboolean normalized, GLsizei stride,
                                 const void* ptr) {
  glVertexAttribPointer(indx, size, type, normalized, stride, ptr);
}

GLvoid StubGLViewport(GLint x, GLint y, GLsizei width, GLsizei height) {
  glViewport(x, y, width, height);
}
}  // extern "C"
}  // namespace

namespace gfx {

GrGLInterface* CreateInProcessSkiaGLBinding() {
  GrGLStandard standard;
  switch (gfx::GetGLImplementation()) {
    case gfx::kGLImplementationNone:
      NOTREACHED();
      return NULL;
    case gfx::kGLImplementationDesktopGL:
    case gfx::kGLImplementationAppleGL:
      standard = kGL_GrGLStandard;
      break;
    case gfx::kGLImplementationOSMesaGL:
      standard = kGL_GrGLStandard;
      break;
    case gfx::kGLImplementationEGLGLES2:
      standard = kGLES_GrGLStandard;
      break;
    case gfx::kGLImplementationMockGL:
      NOTREACHED();
      return NULL;
    default:
      NOTREACHED();
      return NULL;
  }

  GrGLInterface* interface = new GrGLInterface;
  interface->fStandard = standard;
  interface->fExtensions.init(standard,
                              StubGLGetString,
                              NULL,
                              StubGLGetIntegerv);

  GrGLInterface::Functions* functions = &interface->fFunctions;
  functions->fActiveTexture = StubGLActiveTexture;
  functions->fAttachShader = StubGLAttachShader;
  functions->fBeginQuery = StubGLBeginQuery;
  functions->fBindAttribLocation = StubGLBindAttribLocation;
  functions->fBindBuffer = StubGLBindBuffer;
  functions->fBindFragDataLocation = StubGLBindFragDataLocation;
  functions->fBindTexture = StubGLBindTexture;
  functions->fBindVertexArray = StubGLBindVertexArray;
  functions->fBlendColor = StubGLBlendColor;
  functions->fBlendFunc = StubGLBlendFunc;
  functions->fBufferData = StubGLBufferData;
  functions->fBufferSubData = StubGLBufferSubData;
  functions->fClear = StubGLClear;
  functions->fClearColor = StubGLClearColor;
  functions->fClearStencil = StubGLClearStencil;
  functions->fColorMask = StubGLColorMask;
  functions->fCompileShader = StubGLCompileShader;
  functions->fCompressedTexImage2D = StubGLCompressedTexImage2D;
  functions->fCopyTexSubImage2D = StubGLCopyTexSubImage2D;
  functions->fCreateProgram = StubGLCreateProgram;
  functions->fCreateShader = StubGLCreateShader;
  functions->fCullFace = StubGLCullFace;
  functions->fDeleteBuffers = StubGLDeleteBuffers;
  functions->fDeleteProgram = StubGLDeleteProgram;
  functions->fDeleteQueries = StubGLDeleteQueries;
  functions->fDeleteShader = StubGLDeleteShader;
  functions->fDeleteTextures = StubGLDeleteTextures;
  functions->fDeleteVertexArrays = StubGLDeleteVertexArrays;
  functions->fDepthMask = StubGLDepthMask;
  functions->fDisable = StubGLDisable;
  functions->fDisableVertexAttribArray = StubGLDisableVertexAttribArray;
  functions->fDiscardFramebuffer = StubGLDiscardFramebuffer;
  functions->fDrawArrays = StubGLDrawArrays;
  functions->fDrawBuffer = StubGLDrawBuffer;
  functions->fDrawBuffers = StubGLDrawBuffers;
  functions->fDrawElements = StubGLDrawElements;
  functions->fEnable = StubGLEnable;
  functions->fEnableVertexAttribArray = StubGLEnableVertexAttribArray;
  functions->fEndQuery = StubGLEndQuery;
  functions->fFinish = StubGLFinish;
  functions->fFlush = StubGLFlush;
  functions->fFrontFace = StubGLFrontFace;
  functions->fGenBuffers = StubGLGenBuffers;
  functions->fGenQueries = StubGLGenQueries;
  functions->fGenTextures = StubGLGenTextures;
  functions->fGenVertexArrays = StubGLGenVertexArrays;
  functions->fGetBufferParameteriv = StubGLGetBufferParameteriv;
  functions->fGetError = StubGLGetError;
  functions->fGetIntegerv = StubGLGetIntegerv;
  functions->fGetQueryiv = StubGLGetQueryiv;
  functions->fGetQueryObjecti64v = StubGLGetQueryObjecti64v;
  functions->fGetQueryObjectiv = StubGLGetQueryObjectiv;
  functions->fGetQueryObjectui64v = StubGLGetQueryObjectui64v;
  functions->fGetQueryObjectuiv = StubGLGetQueryObjectuiv;
  functions->fGetProgramInfoLog = StubGLGetProgramInfoLog;
  functions->fGetProgramiv = StubGLGetProgramiv;
  functions->fGetShaderInfoLog = StubGLGetShaderInfoLog;
  functions->fGetShaderiv = StubGLGetShaderiv;
  functions->fGetString = StubGLGetString;
  functions->fGetTexLevelParameteriv = StubGLGetTexLevelParameteriv;
  functions->fGetUniformLocation = StubGLGetUniformLocation;
  functions->fInsertEventMarker = StubGLInsertEventMarker;
  functions->fLineWidth = StubGLLineWidth;
  functions->fLinkProgram = StubGLLinkProgram;
  functions->fPixelStorei = StubGLPixelStorei;
  functions->fPopGroupMarker = StubGLPopGroupMarker;
  functions->fPushGroupMarker = StubGLPushGroupMarker;
  functions->fQueryCounter = StubGLQueryCounter;
  functions->fReadBuffer = StubGLReadBuffer;
  functions->fReadPixels = StubGLReadPixels;
  functions->fScissor = StubGLScissor;
  functions->fShaderSource = StubGLShaderSource;
  functions->fStencilFunc = StubGLStencilFunc;
  functions->fStencilFuncSeparate = StubGLStencilFuncSeparate;
  functions->fStencilMask = StubGLStencilMask;
  functions->fStencilMaskSeparate = StubGLStencilMaskSeparate;
  functions->fStencilOp = StubGLStencilOp;
  functions->fStencilOpSeparate = StubGLStencilOpSeparate;
  functions->fTexImage2D = StubGLTexImage2D;
  functions->fTexParameteri = StubGLTexParameteri;
  functions->fTexParameteriv = StubGLTexParameteriv;
  functions->fTexSubImage2D = StubGLTexSubImage2D;
  functions->fTexStorage2D = StubGLTexStorage2D;
  functions->fUniform1f = StubGLUniform1f;
  functions->fUniform1i = StubGLUniform1i;
  functions->fUniform1fv = StubGLUniform1fv;
  functions->fUniform1iv = StubGLUniform1iv;
  functions->fUniform2f = StubGLUniform2f;
  functions->fUniform2i = StubGLUniform2i;
  functions->fUniform2fv = StubGLUniform2fv;
  functions->fUniform2iv = StubGLUniform2iv;
  functions->fUniform3f = StubGLUniform3f;
  functions->fUniform3i = StubGLUniform3i;
  functions->fUniform3fv = StubGLUniform3fv;
  functions->fUniform3iv = StubGLUniform3iv;
  functions->fUniform4f = StubGLUniform4f;
  functions->fUniform4i = StubGLUniform4i;
  functions->fUniform4fv = StubGLUniform4fv;
  functions->fUniform4iv = StubGLUniform4iv;
  functions->fUniformMatrix2fv = StubGLUniformMatrix2fv;
  functions->fUniformMatrix3fv = StubGLUniformMatrix3fv;
  functions->fUniformMatrix4fv = StubGLUniformMatrix4fv;
  functions->fUseProgram = StubGLUseProgram;
  functions->fVertexAttrib4fv = StubGLVertexAttrib4fv;
  functions->fVertexAttribPointer = StubGLVertexAttribPointer;
  functions->fViewport = StubGLViewport;
  functions->fBindFramebuffer = StubGLBindFramebuffer;
  functions->fBindRenderbuffer = StubGLBindRenderbuffer;
  functions->fCheckFramebufferStatus = StubGLCheckFramebufferStatus;
  functions->fDeleteFramebuffers = StubGLDeleteFramebuffers;
  functions->fDeleteRenderbuffers = StubGLDeleteRenderbuffers;
  functions->fFramebufferRenderbuffer = StubGLFramebufferRenderbuffer;
  functions->fFramebufferTexture2D = StubGLFramebufferTexture2D;
  functions->fFramebufferTexture2DMultisample =
    StubGLFramebufferTexture2DMultisample;
  functions->fGenFramebuffers = StubGLGenFramebuffers;
  functions->fGenRenderbuffers = StubGLGenRenderbuffers;
  functions->fGetFramebufferAttachmentParameteriv =
    StubGLGetFramebufferAttachmentParameteriv;
  functions->fGetRenderbufferParameteriv = StubGLGetRenderbufferParameteriv;
  functions->fRenderbufferStorage = StubGLRenderbufferStorage;
  functions->fRenderbufferStorageMultisample =
    StubGLRenderbufferStorageMultisample;
  functions->fBlitFramebuffer = StubGLBlitFramebuffer;
  functions->fMapBuffer = StubGLMapBuffer;
  functions->fUnmapBuffer = StubGLUnmapBuffer;
  functions->fBindFragDataLocationIndexed =
    StubGLBindFragDataLocationIndexed;

  return interface;
}

}  // namespace gfx