ui/gl/gl_bindings_skia_in_process.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5
   6 #include "ui/gl/gl_bindings_skia_in_process.h"
   7
   8 #include "base/logging.h"
   9 #include "third_party/skia/include/gpu/gl/GrGLInterface.h"
  10 #include "ui/gl/gl_bindings.h"
  11 #include "ui/gl/gl_implementation.h"
  12
  13 namespace {
  14
  15 extern "C" {
  16 // The following stub functions are required because the glXXX routines exported
  17 // via gl_bindings.h use call-type GL_BINDING_CALL, which on Windows is stdcall.
  18 // Skia has been built such that its GrGLInterface GL pointers are __cdecl.
  19
  20 GLvoid StubGLActiveTexture(GLenum texture) {
  21   glActiveTexture(texture);
  22 }
  23
  24 GLvoid StubGLAttachShader(GLuint program, GLuint shader) {
  25   glAttachShader(program, shader);
  26 }
  27
  28 GLvoid StubGLBeginQuery(GLenum target, GLuint id) {
  29   glBeginQuery(target, id);
  30 }
  31
  32 GLvoid StubGLBindAttribLocation(GLuint program, GLuint index,
  33                                 const char* name) {
  34   glBindAttribLocation(program, index, name);
  35 }
  36
  37 GLvoid StubGLBindBuffer(GLenum target, GLuint buffer) {
  38   glBindBuffer(target, buffer);
  39 }
  40
  41 GLvoid StubGLBindFragDataLocation(GLuint program, GLuint colorNumber,
  42                                   const GLchar * name) {
  43   glBindFragDataLocation(program, colorNumber, name);
  44 }
  45
  46 GLvoid StubGLBindFragDataLocationIndexed(GLuint program, GLuint colorNumber,
  47                                          GLuint index, const GLchar * name) {
  48   glBindFragDataLocationIndexed(program, colorNumber, index, name);
  49 }
  50
  51 GLvoid StubGLBindFramebuffer(GLenum target, GLuint framebuffer) {
  52   glBindFramebufferEXT(target, framebuffer);
  53 }
  54
  55 GLvoid StubGLBindRenderbuffer(GLenum target, GLuint renderbuffer) {
  56   glBindRenderbufferEXT(target, renderbuffer);
  57 }
  58
  59 GLvoid StubGLBindTexture(GLenum target, GLuint texture) {
  60   glBindTexture(target, texture);
  61 }
  62
  63 GLvoid StubGLBindVertexArray(GLuint array) {
  64   glBindVertexArrayOES(array);
  65 }
  66
  67 GLvoid StubGLBlendColor(GLclampf red, GLclampf green, GLclampf blue,
  68                         GLclampf alpha) {
  69   glBlendColor(red, green, blue, alpha);
  70 }
  71
  72 GLvoid StubGLBlendFunc(GLenum sfactor, GLenum dfactor) {
  73   glBlendFunc(sfactor, dfactor);
  74 }
  75
  76 GLvoid StubGLBlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
  77                              GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
  78                              GLbitfield mask, GLenum filter) {
  79   glBlitFramebufferEXT(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1,
  80                        mask, filter);
  81 }
  82
  83 GLvoid StubGLBufferData(GLenum target, GLsizeiptr size, const void* data,
  84                         GLenum usage) {
  85   glBufferData(target, size, data, usage);
  86 }
  87
  88 GLvoid StubGLBufferSubData(GLenum target, GLintptr offset, GLsizeiptr size,
  89                            const void* data) {
  90   glBufferSubData(target, offset, size, data);
  91 }
  92
  93 GLenum StubGLCheckFramebufferStatus(GLenum target) {
  94   return glCheckFramebufferStatusEXT(target);
  95 }
  96
  97 GLvoid StubGLClear(GLbitfield mask) {
  98   glClear(mask);
  99 }
 100
 101 GLvoid StubGLClearColor(GLclampf red, GLclampf green, GLclampf blue,
 102                         GLclampf alpha) {
 103   glClearColor(red, green, blue, alpha);
 104 }
 105
 106 GLvoid StubGLClearStencil(GLint s) {
 107   glClearStencil(s);
 108 }
 109
 110 GLvoid StubGLColorMask(GLboolean red, GLboolean green, GLboolean blue,
 111                        GLboolean alpha) {
 112   glColorMask(red, green, blue, alpha);
 113 }
 114
 115 GLvoid StubGLCompileShader(GLuint shader) {
 116   glCompileShader(shader);
 117 }
 118
 119 GLvoid StubGLCompressedTexImage2D(GLenum target, GLint level,
 120                                   GLenum internalformat, GLsizei width,
 121                                   GLsizei height, GLint border,
 122                                   GLsizei imageSize, const void* data) {
 123   glCompressedTexImage2D(target, level, internalformat, width, height, border,
 124                          imageSize, data);
 125 }
 126
 127 GLvoid StubGLCopyTexSubImage2D(GLenum target, GLint level,
 128                                GLint xoffset, GLint yoffset,
 129                                GLint x, GLint y,
 130                                GLsizei width, GLsizei height) {
 131   glCopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
 132 }
 133
 134 GLuint StubGLCreateProgram(void) {
 135   return glCreateProgram();
 136 }
 137
 138 GLuint StubGLCreateShader(GLenum type) {
 139   return glCreateShader(type);
 140 }
 141
 142 GLvoid StubGLCullFace(GLenum mode) {
 143   glCullFace(mode);
 144 }
 145
 146 GLvoid StubGLDeleteBuffers(GLsizei n, const GLuint* buffers) {
 147   glDeleteBuffersARB(n, buffers);
 148 }
 149
 150 GLvoid StubGLDeleteFramebuffers(GLsizei n, const GLuint* framebuffers) {
 151   glDeleteFramebuffersEXT(n, framebuffers);
 152 }
 153
 154 GLvoid StubGLDeleteQueries(GLsizei n, const GLuint* ids) {
 155   glDeleteQueries(n, ids);
 156 }
 157
 158 GLvoid StubGLDeleteProgram(GLuint program) {
 159   glDeleteProgram(program);
 160 }
 161
 162 GLvoid StubGLDeleteRenderbuffers(GLsizei n, const GLuint* renderbuffers) {
 163   glDeleteRenderbuffersEXT(n, renderbuffers);
 164 }
 165
 166 GLvoid StubGLDeleteShader(GLuint shader) {
 167   glDeleteShader(shader);
 168 }
 169
 170 GLvoid StubGLDeleteTextures(GLsizei n, const GLuint* textures) {
 171   glDeleteTextures(n, textures);
 172 }
 173
 174 GLvoid StubGLDeleteVertexArrays(GLsizei n, const GLuint* arrays) {
 175   glDeleteVertexArraysOES(n, arrays);
 176 }
 177
 178 GLvoid StubGLDepthMask(GLboolean flag) {
 179   glDepthMask(flag);
 180 }
 181
 182 GLvoid StubGLDisable(GLenum cap) {
 183   glDisable(cap);
 184 }
 185
 186 GLvoid StubGLDisableVertexAttribArray(GLuint index) {
 187   glDisableVertexAttribArray(index);
 188 }
 189
 190 GLvoid StubGLDiscardFramebuffer(GLenum target, GLsizei numAttachments,
 191                                 const GLenum *attachments) {
 192   glDiscardFramebufferEXT(target, numAttachments, attachments);
 193 }
 194
 195 GLvoid StubGLDrawArrays(GLenum mode, GLint first, GLsizei count) {
 196   glDrawArrays(mode, first, count);
 197 }
 198
 199 GLvoid StubGLDrawBuffer(GLenum mode) {
 200   glDrawBuffer(mode);
 201 }
 202
 203 GLvoid StubGLDrawBuffers(GLsizei n, const GLenum* bufs) {
 204   glDrawBuffersARB(n, bufs);
 205 }
 206
 207 GLvoid StubGLDrawElements(GLenum mode, GLsizei count, GLenum type,
 208                           const void* indices) {
 209   glDrawElements(mode, count, type, indices);
 210 }
 211
 212 GLvoid StubGLEnable(GLenum cap) {
 213   glEnable(cap);
 214 }
 215
 216 GLvoid StubGLEnableVertexAttribArray(GLuint index) {
 217   glEnableVertexAttribArray(index);
 218 }
 219
 220 GLvoid StubGLEndQuery(GLenum target) {
 221   glEndQuery(target);
 222 }
 223
 224 GLvoid StubGLFinish() {
 225   glFinish();
 226 }
 227
 228 GLvoid StubGLFlush() {
 229   glFlush();
 230 }
 231
 232 GLvoid StubGLFramebufferRenderbuffer(GLenum target, GLenum attachment,
 233                                      GLenum renderbuffertarget,
 234                                      GLuint renderbuffer) {
 235   glFramebufferRenderbufferEXT(target, attachment, renderbuffertarget,
 236                                renderbuffer);
 237 }
 238
 239 GLvoid StubGLFramebufferTexture2D(GLenum target, GLenum attachment,
 240                                   GLenum textarget, GLuint texture,
 241                                   GLint level) {
 242   glFramebufferTexture2DEXT(target, attachment, textarget, texture, level);
 243 }
 244
 245 GLvoid StubGLFramebufferTexture2DMultisample(GLenum target, GLenum attachment,
 246                                   GLenum textarget, GLuint texture,
 247                                   GLint level, GLsizei samples) {
 248   glFramebufferTexture2DMultisampleEXT(target, attachment, textarget, texture,
 249       level, samples);
 250 }
 251
 252 GLvoid StubGLFrontFace(GLenum mode) {
 253   glFrontFace(mode);
 254 }
 255
 256 GLvoid StubGLGenBuffers(GLsizei n, GLuint* buffers) {
 257   glGenBuffersARB(n, buffers);
 258 }
 259
 260 GLvoid StubGLGenFramebuffers(GLsizei n, GLuint* framebuffers) {
 261   glGenFramebuffersEXT(n, framebuffers);
 262 }
 263
 264 GLvoid StubGLGenQueries(GLsizei n, GLuint* ids) {
 265   glGenQueries(n, ids);
 266 }
 267
 268 GLvoid StubGLGenRenderbuffers(GLsizei n, GLuint* renderbuffers) {
 269   glGenRenderbuffersEXT(n, renderbuffers);
 270 }
 271
 272 GLvoid StubGLGenTextures(GLsizei n, GLuint* textures) {
 273   glGenTextures(n, textures);
 274 }
 275
 276 GLvoid StubGLGenVertexArrays(GLsizei n, GLuint* arrays) {
 277   glGenVertexArraysOES(n, arrays);
 278 }
 279
 280 GLvoid StubGLGetBufferParameteriv(GLenum target, GLenum pname, GLint* params) {
 281   glGetBufferParameteriv(target, pname, params);
 282 }
 283
 284 GLvoid StubGLGetFramebufferAttachmentParameteriv(GLenum target,
 285                                                  GLenum attachment,
 286                                                  GLenum pname, GLint* params) {
 287   glGetFramebufferAttachmentParameterivEXT(target, attachment, pname, params);
 288 }
 289
 290 GLenum StubGLGetError() {
 291   return glGetError();
 292 }
 293
 294 GLvoid StubGLGetIntegerv(GLenum pname, GLint* params) {
 295   glGetIntegerv(pname, params);
 296 }
 297
 298 GLvoid StubGLGetProgramInfoLog(GLuint program, GLsizei bufsize, GLsizei* length,
 299                                char* infolog) {
 300   glGetProgramInfoLog(program, bufsize, length, infolog);
 301 }
 302
 303 GLvoid StubGLGetProgramiv(GLuint program, GLenum pname, GLint* params) {
 304   glGetProgramiv(program, pname, params);
 305 }
 306
 307 GLvoid StubGLGetRenderbufferParameteriv(GLenum target,
 308                                         GLenum pname, GLint* params) {
 309   glGetRenderbufferParameterivEXT(target, pname, params);
 310 }
 311
 312 GLvoid StubGLGetShaderInfoLog(GLuint shader, GLsizei bufsize, GLsizei* length,
 313                               char* infolog) {
 314   glGetShaderInfoLog(shader, bufsize, length, infolog);
 315 }
 316
 317 GLvoid StubGLGetShaderiv(GLuint shader, GLenum pname, GLint* params) {
 318   glGetShaderiv(shader, pname, params);
 319 }
 320
 321 const GLubyte* StubGLGetString(GLenum name) {
 322   return glGetString(name);
 323 }
 324
 325 GLvoid StubGLGetQueryiv(GLenum target, GLenum pname, GLint* params) {
 326   glGetQueryiv(target, pname, params);
 327 }
 328
 329 GLvoid StubGLGetQueryObjecti64v(GLuint id, GLenum pname, GLint64* params) {
 330   glGetQueryObjecti64v(id, pname, params);
 331 }
 332
 333 GLvoid StubGLGetQueryObjectiv(GLuint id, GLenum pname, GLint* params) {
 334   glGetQueryObjectiv(id, pname, params);
 335 }
 336
 337 GLvoid StubGLGetQueryObjectui64v(GLuint id, GLenum pname, GLuint64* params) {
 338   glGetQueryObjectui64v(id, pname, params);
 339 }
 340
 341 GLvoid StubGLGetQueryObjectuiv(GLuint id, GLenum pname, GLuint* params) {
 342   glGetQueryObjectuiv(id, pname, params);
 343 }
 344
 345 GLvoid StubGLGetTexLevelParameteriv(GLenum target, GLint level,
 346                                     GLenum pname, GLint* params) {
 347   glGetTexLevelParameteriv(target, level, pname, params);
 348 }
 349
 350 GLint StubGLGetUniformLocation(GLuint program, const char* name) {
 351   return glGetUniformLocation(program, name);
 352 }
 353
 354 GLvoid StubGLInsertEventMarker(GLsizei length, const char* marker) {
 355   glInsertEventMarkerEXT(length, marker);
 356 }
 357
 358 GLvoid StubGLLineWidth(GLfloat width) {
 359   glLineWidth(width);
 360 }
 361
 362 GLvoid StubGLLinkProgram(GLuint program) {
 363   glLinkProgram(program);
 364 }
 365
 366 void* StubGLMapBuffer(GLenum target, GLenum access) {
 367   return glMapBuffer(target, access);
 368 }
 369
 370 GLvoid StubGLPixelStorei(GLenum pname, GLint param) {
 371   glPixelStorei(pname, param);
 372 }
 373
 374 GLvoid StubGLPopGroupMarker() {
 375   glPopGroupMarkerEXT();
 376 }
 377
 378 GLvoid StubGLPushGroupMarker(GLsizei length, const char* marker) {
 379   glPushGroupMarkerEXT(length, marker);
 380 }
 381
 382 GLvoid StubGLQueryCounter(GLuint id, GLenum target) {
 383   glQueryCounter(id, target);
 384 }
 385
 386 GLvoid StubGLReadBuffer(GLenum src) {
 387   glReadBuffer(src);
 388 }
 389
 390 GLvoid StubGLReadPixels(GLint x, GLint y, GLsizei width, GLsizei height,
 391                         GLenum format, GLenum type, void* pixels) {
 392   glReadPixels(x, y, width, height, format, type, pixels);
 393 }
 394
 395 GLvoid StubGLRenderbufferStorage(GLenum target, GLenum internalformat,
 396                                  GLsizei width, GLsizei height) {
 397   glRenderbufferStorageEXT(target, internalformat, width, height);
 398 }
 399
 400 GLvoid StubGLRenderbufferStorageMultisample(GLenum target, GLsizei samples,
 401                                             GLenum internalformat,
 402                                             GLsizei width, GLsizei height) {
 403   glRenderbufferStorageMultisampleEXT(target, samples, internalformat, width,
 404                                       height);
 405 }
 406
 407 GLvoid StubGLScissor(GLint x, GLint y, GLsizei width, GLsizei height) {
 408   glScissor(x, y, width, height);
 409 }
 410
 411 GLvoid StubGLShaderSource(GLuint shader, GLsizei count, const char* const* str,
 412                           const GLint* length) {
 413   glShaderSource(shader, count, str, length);
 414 }
 415
 416 GLvoid StubGLStencilFunc(GLenum func, GLint ref, GLuint mask) {
 417   glStencilFunc(func, ref, mask);
 418 }
 419
 420 GLvoid StubGLStencilFuncSeparate(GLenum face, GLenum func, GLint ref,
 421                                  GLuint mask) {
 422   glStencilFuncSeparate(face, func, ref, mask);
 423 }
 424
 425 GLvoid StubGLStencilMask(GLuint mask) {
 426   glStencilMask(mask);
 427 }
 428
 429 GLvoid StubGLStencilMaskSeparate(GLenum face, GLuint mask) {
 430   glStencilMaskSeparate(face, mask);
 431 }
 432
 433 GLvoid StubGLStencilOp(GLenum fail, GLenum zfail, GLenum zpass) {
 434   glStencilOp(fail, zfail, zpass);
 435 }
 436
 437 GLvoid StubGLStencilOpSeparate(GLenum face, GLenum fail, GLenum zfail,
 438                                GLenum zpass) {
 439   glStencilOpSeparate(face, fail, zfail, zpass);
 440 }
 441
 442 GLvoid StubGLTexImage2D(GLenum target, GLint level, GLint internalformat,
 443                         GLsizei width, GLsizei height, GLint border,
 444                         GLenum format, GLenum type, const void* pixels) {
 445   glTexImage2D(target, level, internalformat, width, height, border, format,
 446                type, pixels);
 447 }
 448
 449 GLvoid StubGLTexParameteri(GLenum target, GLenum pname, GLint param) {
 450   glTexParameteri(target, pname, param);
 451 }
 452
 453 GLvoid StubGLTexParameteriv(GLenum target, GLenum pname, const GLint* params) {
 454   glTexParameteriv(target, pname, params);
 455 }
 456
 457 GLvoid StubGLTexStorage2D(GLenum target, GLsizei levels, GLenum internalFormat,
 458                           GLsizei width, GLsizei height) {
 459   glTexStorage2DEXT(target, levels, internalFormat, width, height);
 460 }
 461
 462 GLvoid StubGLTexSubImage2D(GLenum target, GLint level, GLint xoffset,
 463                            GLint yoffset, GLsizei width, GLsizei height,
 464                            GLenum format, GLenum type, const void* pixels) {
 465   glTexSubImage2D(target, level, xoffset, yoffset, width, height, format, type,
 466                   pixels);
 467 }
 468
 469 GLvoid StubGLUniform1f(GLint location, GLfloat v) {
 470   glUniform1i(location, v);
 471 }
 472
 473 GLvoid StubGLUniform1i(GLint location, GLint v) {
 474   glUniform1i(location, v);
 475 }
 476
 477 GLvoid StubGLUniform1fv(GLint location, GLsizei count, const GLfloat* v) {
 478   glUniform1fv(location, count, v);
 479 }
 480
 481 GLvoid StubGLUniform1iv(GLint location, GLsizei count, const GLint* v) {
 482   glUniform1iv(location, count, v);
 483 }
 484
 485 GLvoid StubGLUniform2f(GLint location, GLfloat v0, GLfloat v1) {
 486   glUniform2i(location, v0, v1);
 487 }
 488
 489 GLvoid StubGLUniform2i(GLint location, GLint v0, GLint v1) {
 490   glUniform2i(location, v0, v1);
 491 }
 492
 493 GLvoid StubGLUniform2fv(GLint location, GLsizei count, const GLfloat* v) {
 494   glUniform2fv(location, count, v);
 495 }
 496
 497 GLvoid StubGLUniform2iv(GLint location, GLsizei count, const GLint* v) {
 498   glUniform2iv(location, count, v);
 499 }
 500
 501 GLvoid StubGLUniform3f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2) {
 502   glUniform3i(location, v0, v1, v2);
 503 }
 504
 505 GLvoid StubGLUniform3i(GLint location, GLint v0, GLint v1, GLint v2) {
 506   glUniform3i(location, v0, v1, v2);
 507 }
 508
 509 GLvoid StubGLUniform3fv(GLint location, GLsizei count, const GLfloat* v) {
 510   glUniform3fv(location, count, v);
 511 }
 512
 513 GLvoid StubGLUniform3iv(GLint location, GLsizei count, const GLint* v) {
 514   glUniform3iv(location, count, v);
 515 }
 516
 517 GLvoid StubGLUniform4f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2,
 518                        GLfloat v3) {
 519   glUniform4i(location, v0, v1, v2, v3);
 520 }
 521
 522 GLvoid StubGLUniform4i(GLint location, GLint v0, GLint v1, GLint v2,
 523                        GLint v3) {
 524   glUniform4i(location, v0, v1, v2, v3);
 525 }
 526
 527 GLvoid StubGLUniform4fv(GLint location, GLsizei count, const GLfloat* v) {
 528   glUniform4fv(location, count, v);
 529 }
 530
 531 GLvoid StubGLUniform4iv(GLint location, GLsizei count, const GLint* v) {
 532   glUniform4iv(location, count, v);
 533 }
 534
 535 GLvoid StubGLUniformMatrix2fv(GLint location, GLsizei count,
 536                               GLboolean transpose, const GLfloat* value) {
 537   glUniformMatrix2fv(location, count, transpose, value);
 538 }
 539
 540 GLvoid StubGLUniformMatrix3fv(GLint location, GLsizei count,
 541                               GLboolean transpose, const GLfloat* value) {
 542   glUniformMatrix3fv(location, count, transpose, value);
 543 }
 544
 545 GLvoid StubGLUniformMatrix4fv(GLint location, GLsizei count,
 546                               GLboolean transpose, const GLfloat* value) {
 547   glUniformMatrix4fv(location, count, transpose, value);
 548 }
 549
 550 GLboolean StubGLUnmapBuffer(GLenum target) {
 551   return glUnmapBuffer(target);
 552 }
 553
 554 GLvoid StubGLUseProgram(GLuint program) {
 555   glUseProgram(program);
 556 }
 557
 558 GLvoid StubGLVertexAttrib4fv(GLuint indx, const GLfloat* values) {
 559   glVertexAttrib4fv(indx, values);
 560 }
 561
 562 GLvoid StubGLVertexAttribPointer(GLuint indx, GLint size, GLenum type,
 563                                  GLboolean normalized, GLsizei stride,
 564                                  const void* ptr) {
 565   glVertexAttribPointer(indx, size, type, normalized, stride, ptr);
 566 }
 567
 568 GLvoid StubGLViewport(GLint x, GLint y, GLsizei width, GLsizei height) {
 569   glViewport(x, y, width, height);
 570 }
 571 }  // extern "C"
 572 }  // namespace
 573
 574 namespace gfx {
 575
 576 GrGLInterface* CreateInProcessSkiaGLBinding() {
 577   GrGLStandard standard;
 578   switch (gfx::GetGLImplementation()) {
 579     case gfx::kGLImplementationNone:
 580       NOTREACHED();
 581       return NULL;
 582     case gfx::kGLImplementationDesktopGL:
 583     case gfx::kGLImplementationAppleGL:
 584       standard = kGL_GrGLStandard;
 585       break;
 586     case gfx::kGLImplementationOSMesaGL:
 587       standard = kGL_GrGLStandard;
 588       break;
 589     case gfx::kGLImplementationEGLGLES2:
 590       standard = kGLES_GrGLStandard;
 591       break;
 592     case gfx::kGLImplementationMockGL:
 593       NOTREACHED();
 594       return NULL;
 595     default:
 596       NOTREACHED();
 597       return NULL;
 598   }
 599
 600   GrGLInterface* interface = new GrGLInterface;
 601   interface->fStandard = standard;
 602   interface->fExtensions.init(standard,
 603                               StubGLGetString,
 604                               NULL,
 605                               StubGLGetIntegerv);
 606
 607   GrGLInterface::Functions* functions = &interface->fFunctions;
 608   functions->fActiveTexture = StubGLActiveTexture;
 609   functions->fAttachShader = StubGLAttachShader;
 610   functions->fBeginQuery = StubGLBeginQuery;
 611   functions->fBindAttribLocation = StubGLBindAttribLocation;
 612   functions->fBindBuffer = StubGLBindBuffer;
 613   functions->fBindFragDataLocation = StubGLBindFragDataLocation;
 614   functions->fBindTexture = StubGLBindTexture;
 615   functions->fBindVertexArray = StubGLBindVertexArray;
 616   functions->fBlendColor = StubGLBlendColor;
 617   functions->fBlendFunc = StubGLBlendFunc;
 618   functions->fBufferData = StubGLBufferData;
 619   functions->fBufferSubData = StubGLBufferSubData;
 620   functions->fClear = StubGLClear;
 621   functions->fClearColor = StubGLClearColor;
 622   functions->fClearStencil = StubGLClearStencil;
 623   functions->fColorMask = StubGLColorMask;
 624   functions->fCompileShader = StubGLCompileShader;
 625   functions->fCompressedTexImage2D = StubGLCompressedTexImage2D;
 626   functions->fCopyTexSubImage2D = StubGLCopyTexSubImage2D;
 627   functions->fCreateProgram = StubGLCreateProgram;
 628   functions->fCreateShader = StubGLCreateShader;
 629   functions->fCullFace = StubGLCullFace;
 630   functions->fDeleteBuffers = StubGLDeleteBuffers;
 631   functions->fDeleteProgram = StubGLDeleteProgram;
 632   functions->fDeleteQueries = StubGLDeleteQueries;
 633   functions->fDeleteShader = StubGLDeleteShader;
 634   functions->fDeleteTextures = StubGLDeleteTextures;
 635   functions->fDeleteVertexArrays = StubGLDeleteVertexArrays;
 636   functions->fDepthMask = StubGLDepthMask;
 637   functions->fDisable = StubGLDisable;
 638   functions->fDisableVertexAttribArray = StubGLDisableVertexAttribArray;
 639   functions->fDiscardFramebuffer = StubGLDiscardFramebuffer;
 640   functions->fDrawArrays = StubGLDrawArrays;
 641   functions->fDrawBuffer = StubGLDrawBuffer;
 642   functions->fDrawBuffers = StubGLDrawBuffers;
 643   functions->fDrawElements = StubGLDrawElements;
 644   functions->fEnable = StubGLEnable;
 645   functions->fEnableVertexAttribArray = StubGLEnableVertexAttribArray;
 646   functions->fEndQuery = StubGLEndQuery;
 647   functions->fFinish = StubGLFinish;
 648   functions->fFlush = StubGLFlush;
 649   functions->fFrontFace = StubGLFrontFace;
 650   functions->fGenBuffers = StubGLGenBuffers;
 651   functions->fGenQueries = StubGLGenQueries;
 652   functions->fGenTextures = StubGLGenTextures;
 653   functions->fGenVertexArrays = StubGLGenVertexArrays;
 654   functions->fGetBufferParameteriv = StubGLGetBufferParameteriv;
 655   functions->fGetError = StubGLGetError;
 656   functions->fGetIntegerv = StubGLGetIntegerv;
 657   functions->fGetQueryiv = StubGLGetQueryiv;
 658   functions->fGetQueryObjecti64v = StubGLGetQueryObjecti64v;
 659   functions->fGetQueryObjectiv = StubGLGetQueryObjectiv;
 660   functions->fGetQueryObjectui64v = StubGLGetQueryObjectui64v;
 661   functions->fGetQueryObjectuiv = StubGLGetQueryObjectuiv;
 662   functions->fGetProgramInfoLog = StubGLGetProgramInfoLog;
 663   functions->fGetProgramiv = StubGLGetProgramiv;
 664   functions->fGetShaderInfoLog = StubGLGetShaderInfoLog;
 665   functions->fGetShaderiv = StubGLGetShaderiv;
 666   functions->fGetString = StubGLGetString;
 667   functions->fGetTexLevelParameteriv = StubGLGetTexLevelParameteriv;
 668   functions->fGetUniformLocation = StubGLGetUniformLocation;
 669   functions->fInsertEventMarker = StubGLInsertEventMarker;
 670   functions->fLineWidth = StubGLLineWidth;
 671   functions->fLinkProgram = StubGLLinkProgram;
 672   functions->fPixelStorei = StubGLPixelStorei;
 673   functions->fPopGroupMarker = StubGLPopGroupMarker;
 674   functions->fPushGroupMarker = StubGLPushGroupMarker;
 675   functions->fQueryCounter = StubGLQueryCounter;
 676   functions->fReadBuffer = StubGLReadBuffer;
 677   functions->fReadPixels = StubGLReadPixels;
 678   functions->fScissor = StubGLScissor;
 679   functions->fShaderSource = StubGLShaderSource;
 680   functions->fStencilFunc = StubGLStencilFunc;
 681   functions->fStencilFuncSeparate = StubGLStencilFuncSeparate;
 682   functions->fStencilMask = StubGLStencilMask;
 683   functions->fStencilMaskSeparate = StubGLStencilMaskSeparate;
 684   functions->fStencilOp = StubGLStencilOp;
 685   functions->fStencilOpSeparate = StubGLStencilOpSeparate;
 686   functions->fTexImage2D = StubGLTexImage2D;
 687   functions->fTexParameteri = StubGLTexParameteri;
 688   functions->fTexParameteriv = StubGLTexParameteriv;
 689   functions->fTexSubImage2D = StubGLTexSubImage2D;
 690   functions->fTexStorage2D = StubGLTexStorage2D;
 691   functions->fUniform1f = StubGLUniform1f;
 692   functions->fUniform1i = StubGLUniform1i;
 693   functions->fUniform1fv = StubGLUniform1fv;
 694   functions->fUniform1iv = StubGLUniform1iv;
 695   functions->fUniform2f = StubGLUniform2f;
 696   functions->fUniform2i = StubGLUniform2i;
 697   functions->fUniform2fv = StubGLUniform2fv;
 698   functions->fUniform2iv = StubGLUniform2iv;
 699   functions->fUniform3f = StubGLUniform3f;
 700   functions->fUniform3i = StubGLUniform3i;
 701   functions->fUniform3fv = StubGLUniform3fv;
 702   functions->fUniform3iv = StubGLUniform3iv;
 703   functions->fUniform4f = StubGLUniform4f;
 704   functions->fUniform4i = StubGLUniform4i;
 705   functions->fUniform4fv = StubGLUniform4fv;
 706   functions->fUniform4iv = StubGLUniform4iv;
 707   functions->fUniformMatrix2fv = StubGLUniformMatrix2fv;
 708   functions->fUniformMatrix3fv = StubGLUniformMatrix3fv;
 709   functions->fUniformMatrix4fv = StubGLUniformMatrix4fv;
 710   functions->fUseProgram = StubGLUseProgram;
 711   functions->fVertexAttrib4fv = StubGLVertexAttrib4fv;
 712   functions->fVertexAttribPointer = StubGLVertexAttribPointer;
 713   functions->fViewport = StubGLViewport;
 714   functions->fBindFramebuffer = StubGLBindFramebuffer;
 715   functions->fBindRenderbuffer = StubGLBindRenderbuffer;
 716   functions->fCheckFramebufferStatus = StubGLCheckFramebufferStatus;
 717   functions->fDeleteFramebuffers = StubGLDeleteFramebuffers;
 718   functions->fDeleteRenderbuffers = StubGLDeleteRenderbuffers;
 719   functions->fFramebufferRenderbuffer = StubGLFramebufferRenderbuffer;
 720   functions->fFramebufferTexture2D = StubGLFramebufferTexture2D;
 721   functions->fFramebufferTexture2DMultisample =
 722     StubGLFramebufferTexture2DMultisample;
 723   functions->fGenFramebuffers = StubGLGenFramebuffers;
 724   functions->fGenRenderbuffers = StubGLGenRenderbuffers;
 725   functions->fGetFramebufferAttachmentParameteriv =
 726     StubGLGetFramebufferAttachmentParameteriv;
 727   functions->fGetRenderbufferParameteriv = StubGLGetRenderbufferParameteriv;
 728   functions->fRenderbufferStorage = StubGLRenderbufferStorage;
 729   functions->fRenderbufferStorageMultisample =
 730     StubGLRenderbufferStorageMultisample;
 731   functions->fBlitFramebuffer = StubGLBlitFramebuffer;
 732   functions->fMapBuffer = StubGLMapBuffer;
 733   functions->fUnmapBuffer = StubGLUnmapBuffer;
 734   functions->fBindFragDataLocationIndexed =
 735     StubGLBindFragDataLocationIndexed;
 736
 737   return interface;
 738 }
 739
 740 }  // namespace gfx