gpu/blink/webgraphicscontext3d_impl.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 #include "gpu/blink/webgraphicscontext3d_impl.h"
   6
   7 #include "base/atomicops.h"
   8 #include "base/lazy_instance.h"
   9 #include "base/logging.h"
  10 #include "gpu/GLES2/gl2extchromium.h"
  11 #include "gpu/command_buffer/client/gles2_implementation.h"
  12 #include "gpu/command_buffer/client/gles2_lib.h"
  13 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
  14 #include "gpu/skia_bindings/gl_bindings_skia_cmd_buffer.h"
  15
  16 #include "third_party/khronos/GLES2/gl2.h"
  17 #ifndef GL_GLEXT_PROTOTYPES
  18 #define GL_GLEXT_PROTOTYPES 1
  19 #endif
  20 #include "third_party/khronos/GLES2/gl2ext.h"
  21
  22 namespace gpu_blink {
  23
  24 namespace {
  25
  26 uint32_t GenFlushID() {
  27   static base::subtle::Atomic32 flush_id = 0;
  28
  29   base::subtle::Atomic32 my_id = base::subtle::Barrier_AtomicIncrement(
  30       &flush_id, 1);
  31   return static_cast<uint32_t>(my_id);
  32 }
  33
  34 } // namespace anonymous
  35
  36 class WebGraphicsContext3DErrorMessageCallback
  37     : public ::gpu::gles2::GLES2ImplementationErrorMessageCallback {
  38  public:
  39   WebGraphicsContext3DErrorMessageCallback(
  40       WebGraphicsContext3DImpl* context)
  41       : graphics_context_(context) {
  42   }
  43
  44   void OnErrorMessage(const char* msg, int id) override;
  45
  46  private:
  47   WebGraphicsContext3DImpl* graphics_context_;
  48
  49   DISALLOW_COPY_AND_ASSIGN(WebGraphicsContext3DErrorMessageCallback);
  50 };
  51
  52 void WebGraphicsContext3DErrorMessageCallback::OnErrorMessage(
  53     const char* msg, int id) {
  54   graphics_context_->OnErrorMessage(msg, id);
  55 }
  56
  57 // Helper macros to reduce the amount of code.
  58
  59 #define DELEGATE_TO_GL(name, glname)                                    \
  60 void WebGraphicsContext3DImpl::name() {                                 \
  61   gl_->glname();                                                        \
  62 }
  63
  64 #define DELEGATE_TO_GL_R(name, glname, rt)                              \
  65 rt WebGraphicsContext3DImpl::name() {                                   \
  66   return gl_->glname();                                                 \
  67 }
  68
  69 #define DELEGATE_TO_GL_1(name, glname, t1)                              \
  70 void WebGraphicsContext3DImpl::name(t1 a1) {                            \
  71   gl_->glname(a1);                                                      \
  72 }
  73
  74 #define DELEGATE_TO_GL_1R(name, glname, t1, rt)                         \
  75 rt WebGraphicsContext3DImpl::name(t1 a1) {                              \
  76   return gl_->glname(a1);                                               \
  77 }
  78
  79 #define DELEGATE_TO_GL_1RB(name, glname, t1, rt)                        \
  80 rt WebGraphicsContext3DImpl::name(t1 a1) {                              \
  81   return gl_->glname(a1) ? true : false;                                \
  82 }
  83
  84 #define DELEGATE_TO_GL_2(name, glname, t1, t2)                          \
  85 void WebGraphicsContext3DImpl::name(t1 a1, t2 a2) {                     \
  86   gl_->glname(a1, a2);                                                  \
  87 }
  88
  89 #define DELEGATE_TO_GL_2R(name, glname, t1, t2, rt)                     \
  90 rt WebGraphicsContext3DImpl::name(t1 a1, t2 a2) {                       \
  91   return gl_->glname(a1, a2);                                           \
  92 }
  93
  94 #define DELEGATE_TO_GL_3(name, glname, t1, t2, t3)                      \
  95 void WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3) {              \
  96   gl_->glname(a1, a2, a3);                                              \
  97 }
  98
  99 #define DELEGATE_TO_GL_3R(name, glname, t1, t2, t3, rt)                 \
 100 rt WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3) {                \
 101   return gl_->glname(a1, a2, a3);                                       \
 102 }
 103
 104 #define DELEGATE_TO_GL_4(name, glname, t1, t2, t3, t4)                  \
 105 void WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3, t4 a4) {       \
 106   gl_->glname(a1, a2, a3, a4);                                          \
 107 }
 108
 109 #define DELEGATE_TO_GL_4R(name, glname, t1, t2, t3, t4, rt)             \
 110 rt WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3, t4 a4) {         \
 111   return gl_->glname(a1, a2, a3, a4);                                   \
 112 }
 113
 114 #define DELEGATE_TO_GL_5(name, glname, t1, t2, t3, t4, t5)              \
 115 void WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3, t4 a4, t5 a5) {\
 116                                                                         \
 117   gl_->glname(a1, a2, a3, a4, a5);                                      \
 118 }
 119
 120 #define DELEGATE_TO_GL_6(name, glname, t1, t2, t3, t4, t5, t6)          \
 121 void WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3, t4 a4, t5 a5,  \
 122                                     t6 a6) {                            \
 123   gl_->glname(a1, a2, a3, a4, a5, a6);                                  \
 124 }
 125
 126 #define DELEGATE_TO_GL_7(name, glname, t1, t2, t3, t4, t5, t6, t7)      \
 127 void WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3, t4 a4, t5 a5,  \
 128                                     t6 a6, t7 a7) {                     \
 129   gl_->glname(a1, a2, a3, a4, a5, a6, a7);                              \
 130 }
 131
 132 #define DELEGATE_TO_GL_8(name, glname, t1, t2, t3, t4, t5, t6, t7, t8)  \
 133 void WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3, t4 a4, t5 a5,  \
 134                                     t6 a6, t7 a7, t8 a8) {              \
 135   gl_->glname(a1, a2, a3, a4, a5, a6, a7, a8);                          \
 136 }
 137
 138 #define DELEGATE_TO_GL_9(name, glname, t1, t2, t3, t4, t5, t6, t7, t8, t9) \
 139 void WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3, t4 a4, t5 a5,  \
 140                                     t6 a6, t7 a7, t8 a8, t9 a9) {       \
 141   gl_->glname(a1, a2, a3, a4, a5, a6, a7, a8, a9);                      \
 142 }
 143
 144 #define DELEGATE_TO_GL_9R(name, glname, t1, t2, t3, t4, t5, t6, t7, t8, \
 145                           t9, rt)                                       \
 146 rt WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3, t4 a4, t5 a5,    \
 147                                     t6 a6, t7 a7, t8 a8, t9 a9) {       \
 148   return gl_->glname(a1, a2, a3, a4, a5, a6, a7, a8, a9);               \
 149 }
 150
 151 #define DELEGATE_TO_GL_10(name, glname, t1, t2, t3, t4, t5, t6, t7, t8, \
 152                           t9, t10)                                      \
 153 void WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3, t4 a4, t5 a5,  \
 154                                     t6 a6, t7 a7, t8 a8, t9 a9,         \
 155                                     t10 a10) {                          \
 156   gl_->glname(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);                 \
 157 }
 158
 159 #define DELEGATE_TO_GL_11(name, glname, t1, t2, t3, t4, t5, t6, t7, t8, \
 160                           t9, t10, t11)                                 \
 161 void WebGraphicsContext3DImpl::name(t1 a1, t2 a2, t3 a3, t4 a4, t5 a5,  \
 162                                     t6 a6, t7 a7, t8 a8, t9 a9, t10 a10,\
 163                                     t11 a11) {                          \
 164   gl_->glname(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);            \
 165 }
 166
 167 WebGraphicsContext3DImpl::WebGraphicsContext3DImpl()
 168     : initialized_(false),
 169       initialize_failed_(false),
 170       context_lost_callback_(0),
 171       context_lost_reason_(GL_NO_ERROR),
 172       error_message_callback_(0),
 173       gl_(NULL),
 174       flush_id_(0) {
 175 }
 176
 177 WebGraphicsContext3DImpl::~WebGraphicsContext3DImpl() {
 178
 179 }
 180
 181 void WebGraphicsContext3DImpl::synthesizeGLError(WGC3Denum error) {
 182   if (std::find(synthetic_errors_.begin(), synthetic_errors_.end(), error) ==
 183       synthetic_errors_.end()) {
 184     synthetic_errors_.push_back(error);
 185   }
 186 }
 187
 188 uint32_t WebGraphicsContext3DImpl::lastFlushID() {
 189   return flush_id_;
 190 }
 191
 192 DELEGATE_TO_GL_R(insertSyncPoint, InsertSyncPointCHROMIUM, unsigned int)
 193
 194 DELEGATE_TO_GL_3(reshapeWithScaleFactor, ResizeCHROMIUM, int, int, float)
 195
 196 DELEGATE_TO_GL_4R(mapBufferSubDataCHROMIUM, MapBufferSubDataCHROMIUM, WGC3Denum,
 197                   WGC3Dintptr, WGC3Dsizeiptr, WGC3Denum, void*)
 198
 199 DELEGATE_TO_GL_1(unmapBufferSubDataCHROMIUM, UnmapBufferSubDataCHROMIUM,
 200                  const void*)
 201
 202 DELEGATE_TO_GL_9R(mapTexSubImage2DCHROMIUM, MapTexSubImage2DCHROMIUM, WGC3Denum,
 203                   WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei,
 204                   WGC3Denum, WGC3Denum, WGC3Denum, void*)
 205
 206 DELEGATE_TO_GL_1(unmapTexSubImage2DCHROMIUM, UnmapTexSubImage2DCHROMIUM,
 207                  const void*)
 208
 209 DELEGATE_TO_GL_3(discardFramebufferEXT, DiscardFramebufferEXT, WGC3Denum,
 210                  WGC3Dsizei, const WGC3Denum*)
 211
 212 blink::WebString WebGraphicsContext3DImpl::
 213     getRequestableExtensionsCHROMIUM() {
 214   return blink::WebString::fromUTF8(
 215       gl_->GetRequestableExtensionsCHROMIUM());
 216 }
 217
 218 DELEGATE_TO_GL_1(requestExtensionCHROMIUM, RequestExtensionCHROMIUM,
 219                  const char*)
 220
 221 void WebGraphicsContext3DImpl::blitFramebufferCHROMIUM(
 222     WGC3Dint srcX0, WGC3Dint srcY0, WGC3Dint srcX1, WGC3Dint srcY1,
 223     WGC3Dint dstX0, WGC3Dint dstY0, WGC3Dint dstX1, WGC3Dint dstY1,
 224     WGC3Dbitfield mask, WGC3Denum filter) {
 225   gl_->BlitFramebufferCHROMIUM(
 226       srcX0, srcY0, srcX1, srcY1,
 227       dstX0, dstY0, dstX1, dstY1,
 228       mask, filter);
 229 }
 230
 231 DELEGATE_TO_GL_5(renderbufferStorageMultisampleCHROMIUM,
 232                  RenderbufferStorageMultisampleCHROMIUM, WGC3Denum, WGC3Dsizei,
 233                  WGC3Denum, WGC3Dsizei, WGC3Dsizei)
 234
 235 DELEGATE_TO_GL_1(activeTexture, ActiveTexture, WGC3Denum)
 236
 237 DELEGATE_TO_GL_2(attachShader, AttachShader, WebGLId, WebGLId)
 238
 239 DELEGATE_TO_GL_3(bindAttribLocation, BindAttribLocation, WebGLId,
 240                  WGC3Duint, const WGC3Dchar*)
 241
 242 DELEGATE_TO_GL_2(bindBuffer, BindBuffer, WGC3Denum, WebGLId)
 243
 244 DELEGATE_TO_GL_2(bindFramebuffer, BindFramebuffer, WGC3Denum, WebGLId)
 245
 246 DELEGATE_TO_GL_2(bindRenderbuffer, BindRenderbuffer, WGC3Denum, WebGLId)
 247
 248 DELEGATE_TO_GL_2(bindTexture, BindTexture, WGC3Denum, WebGLId)
 249
 250 DELEGATE_TO_GL_4(blendColor, BlendColor,
 251                  WGC3Dclampf, WGC3Dclampf, WGC3Dclampf, WGC3Dclampf)
 252
 253 DELEGATE_TO_GL_1(blendEquation, BlendEquation, WGC3Denum)
 254
 255 DELEGATE_TO_GL_2(blendEquationSeparate, BlendEquationSeparate,
 256                  WGC3Denum, WGC3Denum)
 257
 258 DELEGATE_TO_GL_2(blendFunc, BlendFunc, WGC3Denum, WGC3Denum)
 259
 260 DELEGATE_TO_GL_4(blendFuncSeparate, BlendFuncSeparate,
 261                  WGC3Denum, WGC3Denum, WGC3Denum, WGC3Denum)
 262
 263 DELEGATE_TO_GL_4(bufferData, BufferData,
 264                  WGC3Denum, WGC3Dsizeiptr, const void*, WGC3Denum)
 265
 266 DELEGATE_TO_GL_4(bufferSubData, BufferSubData,
 267                  WGC3Denum, WGC3Dintptr, WGC3Dsizeiptr, const void*)
 268
 269 DELEGATE_TO_GL_1R(checkFramebufferStatus, CheckFramebufferStatus,
 270                   WGC3Denum, WGC3Denum)
 271
 272 DELEGATE_TO_GL_1(clear, Clear, WGC3Dbitfield)
 273
 274 DELEGATE_TO_GL_4(clearColor, ClearColor,
 275                  WGC3Dclampf, WGC3Dclampf, WGC3Dclampf, WGC3Dclampf)
 276
 277 DELEGATE_TO_GL_1(clearDepth, ClearDepthf, WGC3Dclampf)
 278
 279 DELEGATE_TO_GL_1(clearStencil, ClearStencil, WGC3Dint)
 280
 281 DELEGATE_TO_GL_4(colorMask, ColorMask,
 282                  WGC3Dboolean, WGC3Dboolean, WGC3Dboolean, WGC3Dboolean)
 283
 284 DELEGATE_TO_GL_1(compileShader, CompileShader, WebGLId)
 285
 286 DELEGATE_TO_GL_8(compressedTexImage2D, CompressedTexImage2D,
 287                  WGC3Denum, WGC3Dint, WGC3Denum, WGC3Dint, WGC3Dint,
 288                  WGC3Dsizei, WGC3Dsizei, const void*)
 289
 290 DELEGATE_TO_GL_9(compressedTexSubImage2D, CompressedTexSubImage2D,
 291                  WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint,
 292                  WGC3Denum, WGC3Dsizei, const void*)
 293
 294 DELEGATE_TO_GL_8(copyTexImage2D, CopyTexImage2D,
 295                  WGC3Denum, WGC3Dint, WGC3Denum, WGC3Dint, WGC3Dint,
 296                  WGC3Dsizei, WGC3Dsizei, WGC3Dint)
 297
 298 DELEGATE_TO_GL_8(copyTexSubImage2D, CopyTexSubImage2D,
 299                  WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint,
 300                  WGC3Dsizei, WGC3Dsizei)
 301
 302 DELEGATE_TO_GL_1(cullFace, CullFace, WGC3Denum)
 303
 304 DELEGATE_TO_GL_1(depthFunc, DepthFunc, WGC3Denum)
 305
 306 DELEGATE_TO_GL_1(depthMask, DepthMask, WGC3Dboolean)
 307
 308 DELEGATE_TO_GL_2(depthRange, DepthRangef, WGC3Dclampf, WGC3Dclampf)
 309
 310 DELEGATE_TO_GL_2(detachShader, DetachShader, WebGLId, WebGLId)
 311
 312 DELEGATE_TO_GL_1(disable, Disable, WGC3Denum)
 313
 314 DELEGATE_TO_GL_1(disableVertexAttribArray, DisableVertexAttribArray,
 315                  WGC3Duint)
 316
 317 DELEGATE_TO_GL_3(drawArrays, DrawArrays, WGC3Denum, WGC3Dint, WGC3Dsizei)
 318
 319 void WebGraphicsContext3DImpl::drawElements(WGC3Denum mode,
 320                                                          WGC3Dsizei count,
 321                                                          WGC3Denum type,
 322                                                          WGC3Dintptr offset) {
 323   gl_->DrawElements(
 324       mode, count, type,
 325       reinterpret_cast<void*>(static_cast<intptr_t>(offset)));
 326 }
 327
 328 DELEGATE_TO_GL_1(enable, Enable, WGC3Denum)
 329
 330 DELEGATE_TO_GL_1(enableVertexAttribArray, EnableVertexAttribArray,
 331                  WGC3Duint)
 332
 333 void WebGraphicsContext3DImpl::finish() {
 334   flush_id_ = GenFlushID();
 335   gl_->Finish();
 336 }
 337
 338 void WebGraphicsContext3DImpl::flush() {
 339   flush_id_ = GenFlushID();
 340   gl_->Flush();
 341 }
 342
 343 DELEGATE_TO_GL_4(framebufferRenderbuffer, FramebufferRenderbuffer,
 344                  WGC3Denum, WGC3Denum, WGC3Denum, WebGLId)
 345
 346 DELEGATE_TO_GL_5(framebufferTexture2D, FramebufferTexture2D,
 347                  WGC3Denum, WGC3Denum, WGC3Denum, WebGLId, WGC3Dint)
 348
 349 DELEGATE_TO_GL_1(frontFace, FrontFace, WGC3Denum)
 350
 351 DELEGATE_TO_GL_1(generateMipmap, GenerateMipmap, WGC3Denum)
 352
 353 bool WebGraphicsContext3DImpl::getActiveAttrib(
 354     WebGLId program, WGC3Duint index, ActiveInfo& info) {
 355   if (!program) {
 356     synthesizeGLError(GL_INVALID_VALUE);
 357     return false;
 358   }
 359   GLint max_name_length = -1;
 360   gl_->GetProgramiv(
 361       program, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &max_name_length);
 362   if (max_name_length < 0)
 363     return false;
 364   scoped_ptr<GLchar[]> name(new GLchar[max_name_length]);
 365   if (!name) {
 366     synthesizeGLError(GL_OUT_OF_MEMORY);
 367     return false;
 368   }
 369   GLsizei length = 0;
 370   GLint size = -1;
 371   GLenum type = 0;
 372   gl_->GetActiveAttrib(
 373       program, index, max_name_length, &length, &size, &type, name.get());
 374   if (size < 0) {
 375     return false;
 376   }
 377   info.name = blink::WebString::fromUTF8(name.get(), length);
 378   info.type = type;
 379   info.size = size;
 380   return true;
 381 }
 382
 383 bool WebGraphicsContext3DImpl::getActiveUniform(
 384     WebGLId program, WGC3Duint index, ActiveInfo& info) {
 385   GLint max_name_length = -1;
 386   gl_->GetProgramiv(
 387       program, GL_ACTIVE_UNIFORM_MAX_LENGTH, &max_name_length);
 388   if (max_name_length < 0)
 389     return false;
 390   scoped_ptr<GLchar[]> name(new GLchar[max_name_length]);
 391   if (!name) {
 392     synthesizeGLError(GL_OUT_OF_MEMORY);
 393     return false;
 394   }
 395   GLsizei length = 0;
 396   GLint size = -1;
 397   GLenum type = 0;
 398   gl_->GetActiveUniform(
 399       program, index, max_name_length, &length, &size, &type, name.get());
 400   if (size < 0) {
 401     return false;
 402   }
 403   info.name = blink::WebString::fromUTF8(name.get(), length);
 404   info.type = type;
 405   info.size = size;
 406   return true;
 407 }
 408
 409 DELEGATE_TO_GL_4(getAttachedShaders, GetAttachedShaders,
 410                  WebGLId, WGC3Dsizei, WGC3Dsizei*, WebGLId*)
 411
 412 DELEGATE_TO_GL_2R(getAttribLocation, GetAttribLocation,
 413                   WebGLId, const WGC3Dchar*, WGC3Dint)
 414
 415 DELEGATE_TO_GL_2(getBooleanv, GetBooleanv, WGC3Denum, WGC3Dboolean*)
 416
 417 DELEGATE_TO_GL_3(getBufferParameteriv, GetBufferParameteriv,
 418                  WGC3Denum, WGC3Denum, WGC3Dint*)
 419
 420 WGC3Denum WebGraphicsContext3DImpl::getError() {
 421   if (!synthetic_errors_.empty()) {
 422     std::vector<WGC3Denum>::iterator iter = synthetic_errors_.begin();
 423     WGC3Denum err = *iter;
 424     synthetic_errors_.erase(iter);
 425     return err;
 426   }
 427
 428   return gl_->GetError();
 429 }
 430
 431 DELEGATE_TO_GL_2(getFloatv, GetFloatv, WGC3Denum, WGC3Dfloat*)
 432
 433 DELEGATE_TO_GL_4(getFramebufferAttachmentParameteriv,
 434                  GetFramebufferAttachmentParameteriv,
 435                  WGC3Denum, WGC3Denum, WGC3Denum, WGC3Dint*)
 436
 437 DELEGATE_TO_GL_2(getIntegerv, GetIntegerv, WGC3Denum, WGC3Dint*)
 438
 439 DELEGATE_TO_GL_3(getProgramiv, GetProgramiv, WebGLId, WGC3Denum, WGC3Dint*)
 440
 441 blink::WebString WebGraphicsContext3DImpl::getProgramInfoLog(
 442     WebGLId program) {
 443   GLint logLength = 0;
 444   gl_->GetProgramiv(program, GL_INFO_LOG_LENGTH, &logLength);
 445   if (!logLength)
 446     return blink::WebString();
 447   scoped_ptr<GLchar[]> log(new GLchar[logLength]);
 448   if (!log)
 449     return blink::WebString();
 450   GLsizei returnedLogLength = 0;
 451   gl_->GetProgramInfoLog(
 452       program, logLength, &returnedLogLength, log.get());
 453   DCHECK_EQ(logLength, returnedLogLength + 1);
 454   blink::WebString res =
 455       blink::WebString::fromUTF8(log.get(), returnedLogLength);
 456   return res;
 457 }
 458
 459 DELEGATE_TO_GL_3(getRenderbufferParameteriv, GetRenderbufferParameteriv,
 460                  WGC3Denum, WGC3Denum, WGC3Dint*)
 461
 462 DELEGATE_TO_GL_3(getShaderiv, GetShaderiv, WebGLId, WGC3Denum, WGC3Dint*)
 463
 464 blink::WebString WebGraphicsContext3DImpl::getShaderInfoLog(
 465     WebGLId shader) {
 466   GLint logLength = 0;
 467   gl_->GetShaderiv(shader, GL_INFO_LOG_LENGTH, &logLength);
 468   if (!logLength)
 469     return blink::WebString();
 470   scoped_ptr<GLchar[]> log(new GLchar[logLength]);
 471   if (!log)
 472     return blink::WebString();
 473   GLsizei returnedLogLength = 0;
 474   gl_->GetShaderInfoLog(
 475       shader, logLength, &returnedLogLength, log.get());
 476   DCHECK_EQ(logLength, returnedLogLength + 1);
 477   blink::WebString res =
 478       blink::WebString::fromUTF8(log.get(), returnedLogLength);
 479   return res;
 480 }
 481
 482 DELEGATE_TO_GL_4(getShaderPrecisionFormat, GetShaderPrecisionFormat,
 483                  WGC3Denum, WGC3Denum, WGC3Dint*, WGC3Dint*)
 484
 485 blink::WebString WebGraphicsContext3DImpl::getShaderSource(
 486     WebGLId shader) {
 487   GLint logLength = 0;
 488   gl_->GetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &logLength);
 489   if (!logLength)
 490     return blink::WebString();
 491   scoped_ptr<GLchar[]> log(new GLchar[logLength]);
 492   if (!log)
 493     return blink::WebString();
 494   GLsizei returnedLogLength = 0;
 495   gl_->GetShaderSource(
 496       shader, logLength, &returnedLogLength, log.get());
 497   if (!returnedLogLength)
 498     return blink::WebString();
 499   DCHECK_EQ(logLength, returnedLogLength + 1);
 500   blink::WebString res =
 501       blink::WebString::fromUTF8(log.get(), returnedLogLength);
 502   return res;
 503 }
 504
 505 blink::WebString WebGraphicsContext3DImpl::
 506     getTranslatedShaderSourceANGLE(WebGLId shader) {
 507   GLint logLength = 0;
 508   gl_->GetShaderiv(
 509       shader, GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE, &logLength);
 510   if (!logLength)
 511     return blink::WebString();
 512   scoped_ptr<GLchar[]> log(new GLchar[logLength]);
 513   if (!log)
 514     return blink::WebString();
 515   GLsizei returnedLogLength = 0;
 516   gl_->GetTranslatedShaderSourceANGLE(
 517       shader, logLength, &returnedLogLength, log.get());
 518   if (!returnedLogLength)
 519     return blink::WebString();
 520   DCHECK_EQ(logLength, returnedLogLength + 1);
 521   blink::WebString res =
 522       blink::WebString::fromUTF8(log.get(), returnedLogLength);
 523   return res;
 524 }
 525
 526 blink::WebString WebGraphicsContext3DImpl::getString(
 527     WGC3Denum name) {
 528   return blink::WebString::fromUTF8(
 529       reinterpret_cast<const char*>(gl_->GetString(name)));
 530 }
 531
 532 DELEGATE_TO_GL_3(getTexParameterfv, GetTexParameterfv,
 533                  WGC3Denum, WGC3Denum, WGC3Dfloat*)
 534
 535 DELEGATE_TO_GL_3(getTexParameteriv, GetTexParameteriv,
 536                  WGC3Denum, WGC3Denum, WGC3Dint*)
 537
 538 DELEGATE_TO_GL_3(getUniformfv, GetUniformfv, WebGLId, WGC3Dint, WGC3Dfloat*)
 539
 540 DELEGATE_TO_GL_3(getUniformiv, GetUniformiv, WebGLId, WGC3Dint, WGC3Dint*)
 541
 542 DELEGATE_TO_GL_2R(getUniformLocation, GetUniformLocation,
 543                   WebGLId, const WGC3Dchar*, WGC3Dint)
 544
 545 DELEGATE_TO_GL_3(getVertexAttribfv, GetVertexAttribfv,
 546                  WGC3Duint, WGC3Denum, WGC3Dfloat*)
 547
 548 DELEGATE_TO_GL_3(getVertexAttribiv, GetVertexAttribiv,
 549                  WGC3Duint, WGC3Denum, WGC3Dint*)
 550
 551 WGC3Dsizeiptr WebGraphicsContext3DImpl::getVertexAttribOffset(
 552     WGC3Duint index, WGC3Denum pname) {
 553   GLvoid* value = NULL;
 554   // NOTE: If pname is ever a value that returns more then 1 element
 555   // this will corrupt memory.
 556   gl_->GetVertexAttribPointerv(index, pname, &value);
 557   return static_cast<WGC3Dsizeiptr>(reinterpret_cast<intptr_t>(value));
 558 }
 559
 560 DELEGATE_TO_GL_2(hint, Hint, WGC3Denum, WGC3Denum)
 561
 562 DELEGATE_TO_GL_1RB(isBuffer, IsBuffer, WebGLId, WGC3Dboolean)
 563
 564 DELEGATE_TO_GL_1RB(isEnabled, IsEnabled, WGC3Denum, WGC3Dboolean)
 565
 566 DELEGATE_TO_GL_1RB(isFramebuffer, IsFramebuffer, WebGLId, WGC3Dboolean)
 567
 568 DELEGATE_TO_GL_1RB(isProgram, IsProgram, WebGLId, WGC3Dboolean)
 569
 570 DELEGATE_TO_GL_1RB(isRenderbuffer, IsRenderbuffer, WebGLId, WGC3Dboolean)
 571
 572 DELEGATE_TO_GL_1RB(isShader, IsShader, WebGLId, WGC3Dboolean)
 573
 574 DELEGATE_TO_GL_1RB(isTexture, IsTexture, WebGLId, WGC3Dboolean)
 575
 576 DELEGATE_TO_GL_1(lineWidth, LineWidth, WGC3Dfloat)
 577
 578 DELEGATE_TO_GL_1(linkProgram, LinkProgram, WebGLId)
 579
 580 DELEGATE_TO_GL_2(pixelStorei, PixelStorei, WGC3Denum, WGC3Dint)
 581
 582 DELEGATE_TO_GL_2(polygonOffset, PolygonOffset, WGC3Dfloat, WGC3Dfloat)
 583
 584 DELEGATE_TO_GL_7(readPixels, ReadPixels,
 585                  WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei, WGC3Denum,
 586                  WGC3Denum, void*)
 587
 588 DELEGATE_TO_GL_4(renderbufferStorage, RenderbufferStorage,
 589                  WGC3Denum, WGC3Denum, WGC3Dsizei, WGC3Dsizei)
 590
 591 DELEGATE_TO_GL_2(sampleCoverage, SampleCoverage, WGC3Dfloat, WGC3Dboolean)
 592
 593 DELEGATE_TO_GL_4(scissor, Scissor, WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei)
 594
 595 void WebGraphicsContext3DImpl::shaderSource(
 596     WebGLId shader, const WGC3Dchar* string) {
 597   GLint length = strlen(string);
 598   gl_->ShaderSource(shader, 1, &string, &length);
 599 }
 600
 601 DELEGATE_TO_GL_3(stencilFunc, StencilFunc, WGC3Denum, WGC3Dint, WGC3Duint)
 602
 603 DELEGATE_TO_GL_4(stencilFuncSeparate, StencilFuncSeparate,
 604                  WGC3Denum, WGC3Denum, WGC3Dint, WGC3Duint)
 605
 606 DELEGATE_TO_GL_1(stencilMask, StencilMask, WGC3Duint)
 607
 608 DELEGATE_TO_GL_2(stencilMaskSeparate, StencilMaskSeparate,
 609                  WGC3Denum, WGC3Duint)
 610
 611 DELEGATE_TO_GL_3(stencilOp, StencilOp,
 612                  WGC3Denum, WGC3Denum, WGC3Denum)
 613
 614 DELEGATE_TO_GL_4(stencilOpSeparate, StencilOpSeparate,
 615                  WGC3Denum, WGC3Denum, WGC3Denum, WGC3Denum)
 616
 617 DELEGATE_TO_GL_9(texImage2D, TexImage2D,
 618                  WGC3Denum, WGC3Dint, WGC3Denum, WGC3Dsizei, WGC3Dsizei,
 619                  WGC3Dint, WGC3Denum, WGC3Denum, const void*)
 620
 621 DELEGATE_TO_GL_3(texParameterf, TexParameterf,
 622                  WGC3Denum, WGC3Denum, WGC3Dfloat);
 623
 624 static const unsigned int kTextureWrapR = 0x8072;
 625
 626 void WebGraphicsContext3DImpl::texParameteri(
 627     WGC3Denum target, WGC3Denum pname, WGC3Dint param) {
 628   // TODO(kbr): figure out whether the setting of TEXTURE_WRAP_R in
 629   // GraphicsContext3D.cpp is strictly necessary to avoid seams at the
 630   // edge of cube maps, and, if it is, push it into the GLES2 service
 631   // side code.
 632   if (pname == kTextureWrapR) {
 633     return;
 634   }
 635   gl_->TexParameteri(target, pname, param);
 636 }
 637
 638 DELEGATE_TO_GL_9(texSubImage2D, TexSubImage2D,
 639                  WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dsizei,
 640                  WGC3Dsizei, WGC3Denum, WGC3Denum, const void*)
 641
 642 DELEGATE_TO_GL_2(uniform1f, Uniform1f, WGC3Dint, WGC3Dfloat)
 643
 644 DELEGATE_TO_GL_3(uniform1fv, Uniform1fv, WGC3Dint, WGC3Dsizei,
 645                  const WGC3Dfloat*)
 646
 647 DELEGATE_TO_GL_2(uniform1i, Uniform1i, WGC3Dint, WGC3Dint)
 648
 649 DELEGATE_TO_GL_3(uniform1iv, Uniform1iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
 650
 651 DELEGATE_TO_GL_3(uniform2f, Uniform2f, WGC3Dint, WGC3Dfloat, WGC3Dfloat)
 652
 653 DELEGATE_TO_GL_3(uniform2fv, Uniform2fv, WGC3Dint, WGC3Dsizei,
 654                  const WGC3Dfloat*)
 655
 656 DELEGATE_TO_GL_3(uniform2i, Uniform2i, WGC3Dint, WGC3Dint, WGC3Dint)
 657
 658 DELEGATE_TO_GL_3(uniform2iv, Uniform2iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
 659
 660 DELEGATE_TO_GL_4(uniform3f, Uniform3f, WGC3Dint,
 661                  WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
 662
 663 DELEGATE_TO_GL_3(uniform3fv, Uniform3fv, WGC3Dint, WGC3Dsizei,
 664                  const WGC3Dfloat*)
 665
 666 DELEGATE_TO_GL_4(uniform3i, Uniform3i, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint)
 667
 668 DELEGATE_TO_GL_3(uniform3iv, Uniform3iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
 669
 670 DELEGATE_TO_GL_5(uniform4f, Uniform4f, WGC3Dint,
 671                  WGC3Dfloat, WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
 672
 673 DELEGATE_TO_GL_3(uniform4fv, Uniform4fv, WGC3Dint, WGC3Dsizei,
 674                  const WGC3Dfloat*)
 675
 676 DELEGATE_TO_GL_5(uniform4i, Uniform4i, WGC3Dint,
 677                  WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint)
 678
 679 DELEGATE_TO_GL_3(uniform4iv, Uniform4iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
 680
 681 DELEGATE_TO_GL_4(uniformMatrix2fv, UniformMatrix2fv,
 682                  WGC3Dint, WGC3Dsizei, WGC3Dboolean, const WGC3Dfloat*)
 683
 684 DELEGATE_TO_GL_4(uniformMatrix3fv, UniformMatrix3fv,
 685                  WGC3Dint, WGC3Dsizei, WGC3Dboolean, const WGC3Dfloat*)
 686
 687 DELEGATE_TO_GL_4(uniformMatrix4fv, UniformMatrix4fv,
 688                  WGC3Dint, WGC3Dsizei, WGC3Dboolean, const WGC3Dfloat*)
 689
 690 DELEGATE_TO_GL_1(useProgram, UseProgram, WebGLId)
 691
 692 DELEGATE_TO_GL_1(validateProgram, ValidateProgram, WebGLId)
 693
 694 DELEGATE_TO_GL_2(vertexAttrib1f, VertexAttrib1f, WGC3Duint, WGC3Dfloat)
 695
 696 DELEGATE_TO_GL_2(vertexAttrib1fv, VertexAttrib1fv, WGC3Duint,
 697                  const WGC3Dfloat*)
 698
 699 DELEGATE_TO_GL_3(vertexAttrib2f, VertexAttrib2f, WGC3Duint,
 700                  WGC3Dfloat, WGC3Dfloat)
 701
 702 DELEGATE_TO_GL_2(vertexAttrib2fv, VertexAttrib2fv, WGC3Duint,
 703                  const WGC3Dfloat*)
 704
 705 DELEGATE_TO_GL_4(vertexAttrib3f, VertexAttrib3f, WGC3Duint,
 706                  WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
 707
 708 DELEGATE_TO_GL_2(vertexAttrib3fv, VertexAttrib3fv, WGC3Duint,
 709                  const WGC3Dfloat*)
 710
 711 DELEGATE_TO_GL_5(vertexAttrib4f, VertexAttrib4f, WGC3Duint,
 712                  WGC3Dfloat, WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
 713
 714 DELEGATE_TO_GL_2(vertexAttrib4fv, VertexAttrib4fv, WGC3Duint,
 715                  const WGC3Dfloat*)
 716
 717 void WebGraphicsContext3DImpl::vertexAttribPointer(
 718     WGC3Duint index, WGC3Dint size, WGC3Denum type, WGC3Dboolean normalized,
 719     WGC3Dsizei stride, WGC3Dintptr offset) {
 720   gl_->VertexAttribPointer(
 721       index, size, type, normalized, stride,
 722       reinterpret_cast<void*>(static_cast<intptr_t>(offset)));
 723 }
 724
 725 DELEGATE_TO_GL_4(viewport, Viewport,
 726                  WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei)
 727
 728 WebGLId WebGraphicsContext3DImpl::createBuffer() {
 729   GLuint o;
 730   gl_->GenBuffers(1, &o);
 731   return o;
 732 }
 733
 734 WebGLId WebGraphicsContext3DImpl::createFramebuffer() {
 735   GLuint o = 0;
 736   gl_->GenFramebuffers(1, &o);
 737   return o;
 738 }
 739
 740 WebGLId WebGraphicsContext3DImpl::createRenderbuffer() {
 741   GLuint o;
 742   gl_->GenRenderbuffers(1, &o);
 743   return o;
 744 }
 745
 746 WebGLId WebGraphicsContext3DImpl::createTexture() {
 747   GLuint o;
 748   gl_->GenTextures(1, &o);
 749   return o;
 750 }
 751
 752 void WebGraphicsContext3DImpl::deleteBuffer(WebGLId buffer) {
 753   gl_->DeleteBuffers(1, &buffer);
 754 }
 755
 756 void WebGraphicsContext3DImpl::deleteFramebuffer(
 757     WebGLId framebuffer) {
 758   gl_->DeleteFramebuffers(1, &framebuffer);
 759 }
 760
 761 void WebGraphicsContext3DImpl::deleteRenderbuffer(
 762     WebGLId renderbuffer) {
 763   gl_->DeleteRenderbuffers(1, &renderbuffer);
 764 }
 765
 766 void WebGraphicsContext3DImpl::deleteTexture(WebGLId texture) {
 767   gl_->DeleteTextures(1, &texture);
 768 }
 769
 770 DELEGATE_TO_GL_R(createProgram, CreateProgram, WebGLId)
 771
 772 DELEGATE_TO_GL_1R(createShader, CreateShader, WGC3Denum, WebGLId)
 773
 774 DELEGATE_TO_GL_1(deleteProgram, DeleteProgram, WebGLId)
 775
 776 DELEGATE_TO_GL_1(deleteShader, DeleteShader, WebGLId)
 777
 778 void WebGraphicsContext3DImpl::setErrorMessageCallback(
 779     WebGraphicsContext3D::WebGraphicsErrorMessageCallback* cb) {
 780   error_message_callback_ = cb;
 781 }
 782
 783 void WebGraphicsContext3DImpl::setContextLostCallback(
 784     WebGraphicsContext3D::WebGraphicsContextLostCallback* cb) {
 785   context_lost_callback_ = cb;
 786 }
 787
 788 DELEGATE_TO_GL_5(texImageIOSurface2DCHROMIUM, TexImageIOSurface2DCHROMIUM,
 789                  WGC3Denum, WGC3Dint, WGC3Dint, WGC3Duint, WGC3Duint)
 790
 791 DELEGATE_TO_GL_5(texStorage2DEXT, TexStorage2DEXT,
 792                  WGC3Denum, WGC3Dint, WGC3Duint, WGC3Dint, WGC3Dint)
 793
 794 WebGLId WebGraphicsContext3DImpl::createQueryEXT() {
 795   GLuint o;
 796   gl_->GenQueriesEXT(1, &o);
 797   return o;
 798 }
 799
 800 void WebGraphicsContext3DImpl::deleteQueryEXT(
 801     WebGLId query) {
 802   gl_->DeleteQueriesEXT(1, &query);
 803 }
 804
 805 DELEGATE_TO_GL_1R(isQueryEXT, IsQueryEXT, WebGLId, WGC3Dboolean)
 806 DELEGATE_TO_GL_2(beginQueryEXT, BeginQueryEXT, WGC3Denum, WebGLId)
 807 DELEGATE_TO_GL_1(endQueryEXT, EndQueryEXT, WGC3Denum)
 808 DELEGATE_TO_GL_3(getQueryivEXT, GetQueryivEXT, WGC3Denum, WGC3Denum, WGC3Dint*)
 809 DELEGATE_TO_GL_3(getQueryObjectuivEXT, GetQueryObjectuivEXT,
 810                  WebGLId, WGC3Denum, WGC3Duint*)
 811
 812 DELEGATE_TO_GL_6(copyTextureCHROMIUM, CopyTextureCHROMIUM,  WGC3Denum,
 813                  WebGLId, WebGLId, WGC3Dint, WGC3Denum, WGC3Denum);
 814
 815 DELEGATE_TO_GL_3(bindUniformLocationCHROMIUM, BindUniformLocationCHROMIUM,
 816                  WebGLId, WGC3Dint, const WGC3Dchar*)
 817
 818 void WebGraphicsContext3DImpl::shallowFlushCHROMIUM() {
 819   flush_id_ = GenFlushID();
 820   gl_->ShallowFlushCHROMIUM();
 821 }
 822
 823 void WebGraphicsContext3DImpl::shallowFinishCHROMIUM() {
 824   flush_id_ = GenFlushID();
 825   gl_->ShallowFinishCHROMIUM();
 826 }
 827
 828 DELEGATE_TO_GL_1(waitSyncPoint, WaitSyncPointCHROMIUM, GLuint)
 829
 830 void WebGraphicsContext3DImpl::loseContextCHROMIUM(
 831     WGC3Denum current, WGC3Denum other) {
 832   gl_->LoseContextCHROMIUM(current, other);
 833   gl_->Flush();
 834 }
 835
 836 DELEGATE_TO_GL_1(genMailboxCHROMIUM, GenMailboxCHROMIUM, WGC3Dbyte*)
 837 DELEGATE_TO_GL_2(produceTextureCHROMIUM, ProduceTextureCHROMIUM,
 838                  WGC3Denum, const WGC3Dbyte*)
 839 DELEGATE_TO_GL_3(produceTextureDirectCHROMIUM, ProduceTextureDirectCHROMIUM,
 840                  WebGLId, WGC3Denum, const WGC3Dbyte*)
 841 DELEGATE_TO_GL_2(consumeTextureCHROMIUM, ConsumeTextureCHROMIUM,
 842                  WGC3Denum, const WGC3Dbyte*)
 843 DELEGATE_TO_GL_2R(createAndConsumeTextureCHROMIUM,
 844                   CreateAndConsumeTextureCHROMIUM,
 845                   WGC3Denum, const WGC3Dbyte*, WebGLId)
 846
 847 DELEGATE_TO_GL_2(genValuebuffersCHROMIUM,
 848                  GenValuebuffersCHROMIUM,
 849                  WGC3Dsizei,
 850                  WebGLId*);
 851
 852 WebGLId WebGraphicsContext3DImpl::createValuebufferCHROMIUM() {
 853   GLuint o;
 854   gl_->GenValuebuffersCHROMIUM(1, &o);
 855   return o;
 856 }
 857
 858 DELEGATE_TO_GL_2(deleteValuebuffersCHROMIUM,
 859                  DeleteValuebuffersCHROMIUM,
 860                  WGC3Dsizei,
 861                  WebGLId*);
 862
 863 void WebGraphicsContext3DImpl::deleteValuebufferCHROMIUM(WebGLId valuebuffer) {
 864   gl_->DeleteValuebuffersCHROMIUM(1, &valuebuffer);
 865 }
 866
 867 DELEGATE_TO_GL_1RB(isValuebufferCHROMIUM,
 868                    IsValuebufferCHROMIUM,
 869                    WebGLId,
 870                    WGC3Dboolean)
 871 DELEGATE_TO_GL_2(bindValuebufferCHROMIUM,
 872                  BindValuebufferCHROMIUM,
 873                  WGC3Denum,
 874                  WebGLId)
 875 DELEGATE_TO_GL_2(subscribeValueCHROMIUM,
 876                  SubscribeValueCHROMIUM,
 877                  WGC3Denum,
 878                  WGC3Denum);
 879 DELEGATE_TO_GL_1(populateSubscribedValuesCHROMIUM,
 880                  PopulateSubscribedValuesCHROMIUM,
 881                  WGC3Denum);
 882 DELEGATE_TO_GL_3(uniformValuebufferCHROMIUM,
 883                  UniformValuebufferCHROMIUM,
 884                  WGC3Dint,
 885                  WGC3Denum,
 886                  WGC3Denum);
 887 DELEGATE_TO_GL_2(traceBeginCHROMIUM,
 888                  TraceBeginCHROMIUM,
 889                  const WGC3Dchar*,
 890                  const WGC3Dchar*);
 891 DELEGATE_TO_GL(traceEndCHROMIUM, TraceEndCHROMIUM);
 892
 893 void WebGraphicsContext3DImpl::insertEventMarkerEXT(
 894     const WGC3Dchar* marker) {
 895   gl_->InsertEventMarkerEXT(0, marker);
 896 }
 897
 898 void WebGraphicsContext3DImpl::pushGroupMarkerEXT(
 899     const WGC3Dchar* marker) {
 900   gl_->PushGroupMarkerEXT(0, marker);
 901 }
 902
 903 DELEGATE_TO_GL(popGroupMarkerEXT, PopGroupMarkerEXT);
 904
 905 WebGLId WebGraphicsContext3DImpl::createVertexArrayOES() {
 906   GLuint array;
 907   gl_->GenVertexArraysOES(1, &array);
 908   return array;
 909 }
 910
 911 void WebGraphicsContext3DImpl::deleteVertexArrayOES(
 912     WebGLId array) {
 913   gl_->DeleteVertexArraysOES(1, &array);
 914 }
 915
 916 DELEGATE_TO_GL_1R(isVertexArrayOES, IsVertexArrayOES, WebGLId, WGC3Dboolean)
 917 DELEGATE_TO_GL_1(bindVertexArrayOES, BindVertexArrayOES, WebGLId)
 918
 919 DELEGATE_TO_GL_2(bindTexImage2DCHROMIUM, BindTexImage2DCHROMIUM,
 920                  WGC3Denum, WGC3Dint)
 921 DELEGATE_TO_GL_2(releaseTexImage2DCHROMIUM, ReleaseTexImage2DCHROMIUM,
 922                  WGC3Denum, WGC3Dint)
 923
 924 DELEGATE_TO_GL_2R(mapBufferCHROMIUM, MapBufferCHROMIUM, WGC3Denum, WGC3Denum,
 925                   void*)
 926 DELEGATE_TO_GL_1R(unmapBufferCHROMIUM, UnmapBufferCHROMIUM, WGC3Denum,
 927                   WGC3Dboolean)
 928
 929 DELEGATE_TO_GL_9(asyncTexImage2DCHROMIUM, AsyncTexImage2DCHROMIUM, WGC3Denum,
 930                  WGC3Dint, WGC3Denum, WGC3Dsizei, WGC3Dsizei, WGC3Dint,
 931                  WGC3Denum, WGC3Denum, const void*)
 932 DELEGATE_TO_GL_9(asyncTexSubImage2DCHROMIUM, AsyncTexSubImage2DCHROMIUM,
 933                  WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dsizei,
 934                  WGC3Dsizei, WGC3Denum, WGC3Denum, const void*)
 935
 936 DELEGATE_TO_GL_1(waitAsyncTexImage2DCHROMIUM, WaitAsyncTexImage2DCHROMIUM,
 937                  WGC3Denum)
 938
 939 DELEGATE_TO_GL_2(drawBuffersEXT, DrawBuffersEXT, WGC3Dsizei, const WGC3Denum*)
 940
 941 DELEGATE_TO_GL_4(drawArraysInstancedANGLE, DrawArraysInstancedANGLE, WGC3Denum,
 942                  WGC3Dint, WGC3Dsizei, WGC3Dsizei)
 943
 944 void WebGraphicsContext3DImpl::drawElementsInstancedANGLE(
 945     WGC3Denum mode,
 946     WGC3Dsizei count,
 947     WGC3Denum type,
 948     WGC3Dintptr offset,
 949     WGC3Dsizei primcount) {
 950   gl_->DrawElementsInstancedANGLE(
 951       mode, count, type,
 952       reinterpret_cast<void*>(static_cast<intptr_t>(offset)), primcount);
 953 }
 954
 955 DELEGATE_TO_GL_2(vertexAttribDivisorANGLE, VertexAttribDivisorANGLE, WGC3Duint,
 956                  WGC3Duint)
 957
 958 DELEGATE_TO_GL_4R(createGpuMemoryBufferImageCHROMIUM,
 959                   CreateGpuMemoryBufferImageCHROMIUM,
 960                   WGC3Dsizei,
 961                   WGC3Dsizei,
 962                   WGC3Denum,
 963                   WGC3Denum,
 964                   WGC3Duint);
 965
 966 DELEGATE_TO_GL_1(destroyImageCHROMIUM, DestroyImageCHROMIUM, WGC3Duint);
 967
 968 DELEGATE_TO_GL_6(framebufferTexture2DMultisampleEXT,
 969                  FramebufferTexture2DMultisampleEXT,
 970                  WGC3Denum, WGC3Denum, WGC3Denum, WebGLId, WGC3Dint, WGC3Dsizei)
 971
 972 DELEGATE_TO_GL_5(renderbufferStorageMultisampleEXT,
 973                  RenderbufferStorageMultisampleEXT, WGC3Denum, WGC3Dsizei,
 974                  WGC3Denum, WGC3Dsizei, WGC3Dsizei)
 975
 976 DELEGATE_TO_GL_1(beginTransformFeedback, BeginTransformFeedback, WGC3Denum)
 977 DELEGATE_TO_GL_3(bindBufferBase, BindBufferBase, WGC3Denum, WGC3Duint,
 978                  WGC3Duint)
 979 DELEGATE_TO_GL_5(bindBufferRange, BindBufferRange, WGC3Denum, WGC3Duint,
 980                  WGC3Duint, WGC3Dintptr, WGC3Dsizeiptr)
 981 DELEGATE_TO_GL_2(bindSampler, BindSampler, WGC3Duint, WebGLId)
 982 DELEGATE_TO_GL_2(bindTransformFeedback, BindTransformFeedback, WGC3Denum,
 983                  WebGLId)
 984 DELEGATE_TO_GL_4(clearBufferfi, ClearBufferfi, WGC3Denum, WGC3Dint, WGC3Dfloat,
 985                  WGC3Dint)
 986 DELEGATE_TO_GL_3(clearBufferfv, ClearBufferfv, WGC3Denum, WGC3Dint,
 987                  const WGC3Dfloat *)
 988 DELEGATE_TO_GL_3(clearBufferiv, ClearBufferiv, WGC3Denum, WGC3Dint,
 989                  const WGC3Dint *)
 990 DELEGATE_TO_GL_3(clearBufferuiv, ClearBufferuiv, WGC3Denum, WGC3Dint,
 991                  const WGC3Duint *)
 992 //DELEGATE_TO_GL_3R(clientWaitSync, ClientWaitSync, WebGLId, WGC3Dbitfield,
 993 //                  WGC3Duint64, WGC3Denum)
 994 //DELEGATE_TO_GL_9(compressedTexImage3D, CompressedTexImage3D, WGC3Denum,
 995 //                 WGC3Dint, WGC3Denum, WGC3Dsizei, WGC3Dsizei, WGC3Dsizei,
 996 //                 WGC3Dint, WGC3Dsizei, const void *)
 997 //DELEGATE_TO_GL_11(compressedTexSubImage3D, CompressedTexSubImage3D, WGC3Denum,
 998 //                  WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dsizei,
 999 //                  WGC3Dsizei, WGC3Dsizei, WGC3Denum, WGC3Dsizei, const void *)
1000 DELEGATE_TO_GL_5(copyBufferSubData, CopyBufferSubData, WGC3Denum, WGC3Denum,
1001                  WGC3Dintptr, WGC3Dintptr, WGC3Dsizeiptr)
1002 DELEGATE_TO_GL_9(copyTexSubImage3D, CopyTexSubImage3D, WGC3Denum, WGC3Dint,
1003                  WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dsizei,
1004                  WGC3Dsizei)
1005 WebGLId WebGraphicsContext3DImpl::createSampler() {
1006   GLuint sampler;
1007   gl_->GenSamplers(1, &sampler);
1008   return sampler;
1009 }
1010 WebGLId WebGraphicsContext3DImpl::createTransformFeedback() {
1011   GLuint tf;
1012   gl_->GenTransformFeedbacks(1, &tf);
1013   return tf;
1014 }
1015 void WebGraphicsContext3DImpl::deleteSampler(WebGLId sampler) {
1016   gl_->DeleteSamplers(1, &sampler);
1017 }
1018 //DELEGATE_TO_GL_1(deleteSync, DeleteSync, WebGLId)
1019 void WebGraphicsContext3DImpl::deleteTransformFeedback(WebGLId tf) {
1020   gl_->DeleteTransformFeedbacks(1, &tf);
1021 }
1022 DELEGATE_TO_GL(endTransformFeedback, EndTransformFeedback)
1023 //DELEGATE_TO_GL_2R(fenceSync, FenceSync, WGC3Denum, WGC3Dbitfield, WebGLId)
1024 DELEGATE_TO_GL_5(framebufferTextureLayer, FramebufferTextureLayer, WGC3Denum,
1025                  WGC3Denum, WGC3Duint, WGC3Dint, WGC3Dint)
1026 DELEGATE_TO_GL_5(getActiveUniformBlockName, GetActiveUniformBlockName,
1027                  WGC3Duint, WGC3Duint, WGC3Dsizei, WGC3Dsizei *, WGC3Dchar *)
1028 DELEGATE_TO_GL_4(getActiveUniformBlockiv, GetActiveUniformBlockiv, WGC3Duint,
1029                  WGC3Duint, WGC3Denum, WGC3Dint *)
1030 //DELEGATE_TO_GL_5(getActiveUniformsiv, GetActiveUniformsiv, WGC3Duint,
1031 //                 WGC3Dsizei, const WGC3Duint *, WGC3Denum, WGC3Dint *)
1032 DELEGATE_TO_GL_2R(getFragDataLocation, GetFragDataLocation, WGC3Duint,
1033                   const WGC3Dchar *, WGC3Dint)
1034 DELEGATE_TO_GL_5(getInternalformativ, GetInternalformativ, WGC3Denum, WGC3Denum,
1035                  WGC3Denum, WGC3Dsizei, WGC3Dint *)
1036 DELEGATE_TO_GL_3(getSamplerParameterfv, GetSamplerParameterfv, WGC3Duint,
1037                  WGC3Denum, WGC3Dfloat *)
1038 DELEGATE_TO_GL_3(getSamplerParameteriv, GetSamplerParameteriv, WGC3Duint,
1039                  WGC3Denum, WGC3Dint *)
1040 //DELEGATE_TO_GL_7(getTransformFeedbackVarying, GetTransformFeedbackVarying,
1041 //                 WGC3Duint, WGC3Duint, WGC3Dsizei, WGC3Dsizei *, WGC3Dsizei *,
1042 //                 WGC3Denum *, WGC3Dchar *)
1043 DELEGATE_TO_GL_2R(getUniformBlockIndex, GetUniformBlockIndex, WGC3Duint,
1044                   const WGC3Dchar *, WGC3Duint)
1045 //DELEGATE_TO_GL_4(getUniformIndices, GetUniformIndices, WGC3Duint, WGC3Dsizei,
1046 //                 const WGC3Dchar *const*, WGC3Duint *)
1047 //DELEGATE_TO_GL_3(getUniformuiv, GetUniformuiv, WGC3Duint, WGC3Dint,
1048 //                 WGC3Duint *)
1049 //DELEGATE_TO_GL_3(getVertexAttribIiv, GetVertexAttribIiv, WGC3Duint,
1050 //                 WGC3Denum, WGC3Dint *)
1051 //DELEGATE_TO_GL_3(getVertexAttribIuiv, GetVertexAttribIuiv, WGC3Duint,
1052 //                 WGC3Denum, WGC3Duint *)
1053 DELEGATE_TO_GL_3(invalidateFramebuffer, InvalidateFramebuffer, WGC3Denum,
1054                  WGC3Dsizei, const WGC3Denum *)
1055 DELEGATE_TO_GL_7(invalidateSubFramebuffer, InvalidateSubFramebuffer, WGC3Denum,
1056                  WGC3Dsizei, const WGC3Denum *, WGC3Dint, WGC3Dint, WGC3Dsizei,
1057                  WGC3Dsizei)
1058 DELEGATE_TO_GL_1R(isSampler, IsSampler, WebGLId, WGC3Dboolean)
1059 //DELEGATE_TO_GL_1R(isSync, IsSync, WebGLId, WGC3Dboolean)
1060 DELEGATE_TO_GL_1R(isTransformFeedback, IsTransformFeedback, WGC3Duint,
1061                   WGC3Dboolean)
1062 DELEGATE_TO_GL(pauseTransformFeedback, PauseTransformFeedback)
1063 //DELEGATE_TO_GL_3(programParameteri, ProgramParameteri, WGC3Duint, WGC3Denum,
1064 //                 WGC3Dint)
1065 DELEGATE_TO_GL_1(readBuffer, ReadBuffer, WGC3Denum)
1066 DELEGATE_TO_GL(resumeTransformFeedback, ResumeTransformFeedback)
1067 DELEGATE_TO_GL_3(samplerParameterf, SamplerParameterf, WGC3Duint, WGC3Denum,
1068                  WGC3Dfloat)
1069 DELEGATE_TO_GL_3(samplerParameterfv, SamplerParameterfv, WGC3Duint, WGC3Denum,
1070                  const WGC3Dfloat *)
1071 DELEGATE_TO_GL_3(samplerParameteri, SamplerParameteri, WGC3Duint, WGC3Denum,
1072                  WGC3Dint)
1073 DELEGATE_TO_GL_3(samplerParameteriv, SamplerParameteriv, WGC3Duint, WGC3Denum,
1074                  const WGC3Dint *)
1075 DELEGATE_TO_GL_10(texImage3D, TexImage3D, WGC3Denum, WGC3Dint, WGC3Dint,
1076                   WGC3Dsizei, WGC3Dsizei, WGC3Dsizei, WGC3Dint, WGC3Denum,
1077                   WGC3Denum, const void *)
1078 DELEGATE_TO_GL_6(texStorage3D, TexStorage3D, WGC3Denum, WGC3Dsizei, WGC3Denum,
1079                  WGC3Dsizei, WGC3Dsizei, WGC3Dsizei)
1080 DELEGATE_TO_GL_11(texSubImage3D, TexSubImage3D, WGC3Denum, WGC3Dint, WGC3Dint,
1081                   WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei, WGC3Dsizei,
1082                   WGC3Denum, WGC3Denum, const void *)
1083 DELEGATE_TO_GL_4(transformFeedbackVaryings, TransformFeedbackVaryings,
1084                  WGC3Duint, WGC3Dsizei, const WGC3Dchar *const*, WGC3Denum)
1085 DELEGATE_TO_GL_2(uniform1ui, Uniform1ui, WGC3Dint, WGC3Duint)
1086 DELEGATE_TO_GL_3(uniform1uiv, Uniform1uiv, WGC3Dint, WGC3Dsizei,
1087                  const WGC3Duint *)
1088 DELEGATE_TO_GL_3(uniform2ui, Uniform2ui, WGC3Dint, WGC3Duint, WGC3Duint)
1089 DELEGATE_TO_GL_3(uniform2uiv, Uniform2uiv, WGC3Dint, WGC3Dsizei,
1090                  const WGC3Duint *)
1091 DELEGATE_TO_GL_4(uniform3ui, Uniform3ui, WGC3Dint, WGC3Duint, WGC3Duint,
1092                  WGC3Duint)
1093 DELEGATE_TO_GL_3(uniform3uiv, Uniform3uiv, WGC3Dint, WGC3Dsizei,
1094                  const WGC3Duint *)
1095 DELEGATE_TO_GL_5(uniform4ui, Uniform4ui, WGC3Dint, WGC3Duint, WGC3Duint,
1096                  WGC3Duint, WGC3Duint)
1097 DELEGATE_TO_GL_3(uniform4uiv, Uniform4uiv, WGC3Dint, WGC3Dsizei,
1098                  const WGC3Duint *)
1099 DELEGATE_TO_GL_3(uniformBlockBinding, UniformBlockBinding, WGC3Duint, WGC3Duint,
1100                  WGC3Duint)
1101 DELEGATE_TO_GL_4(uniformMatrix2x3fv, UniformMatrix2x3fv, WGC3Dint, WGC3Dsizei,
1102                  WGC3Dboolean, const WGC3Dfloat*)
1103 DELEGATE_TO_GL_4(uniformMatrix2x4fv, UniformMatrix2x4fv, WGC3Dint, WGC3Dsizei,
1104                  WGC3Dboolean, const WGC3Dfloat*)
1105 DELEGATE_TO_GL_4(uniformMatrix3x2fv, UniformMatrix3x2fv, WGC3Dint, WGC3Dsizei,
1106                  WGC3Dboolean, const WGC3Dfloat*)
1107 DELEGATE_TO_GL_4(uniformMatrix3x4fv, UniformMatrix3x4fv, WGC3Dint, WGC3Dsizei,
1108                  WGC3Dboolean, const WGC3Dfloat*)
1109 DELEGATE_TO_GL_4(uniformMatrix4x2fv, UniformMatrix4x2fv, WGC3Dint, WGC3Dsizei,
1110                  WGC3Dboolean, const WGC3Dfloat*)
1111 DELEGATE_TO_GL_4(uniformMatrix4x3fv, UniformMatrix4x3fv, WGC3Dint, WGC3Dsizei,
1112                  WGC3Dboolean, const WGC3Dfloat*)
1113 DELEGATE_TO_GL_5(vertexAttribI4i, VertexAttribI4i, WGC3Duint, WGC3Dint,
1114                  WGC3Dint, WGC3Dint, WGC3Dint)
1115 DELEGATE_TO_GL_2(vertexAttribI4iv, VertexAttribI4iv, WGC3Duint,
1116                  const WGC3Dint *)
1117 DELEGATE_TO_GL_5(vertexAttribI4ui, VertexAttribI4ui, WGC3Duint, WGC3Duint,
1118                  WGC3Duint, WGC3Duint, WGC3Duint)
1119 DELEGATE_TO_GL_2(vertexAttribI4uiv, VertexAttribI4uiv, WGC3Duint,
1120                  const WGC3Duint *)
1121 void WebGraphicsContext3DImpl::vertexAttribIPointer(
1122     WGC3Duint index, WGC3Dint size, WGC3Denum type, WGC3Dsizei stride,
1123     WGC3Dintptr offset) {
1124   gl_->VertexAttribIPointer(
1125       index, size, type, stride,
1126       reinterpret_cast<void*>(static_cast<intptr_t>(offset)));
1127 }
1128 //DELEGATE_TO_GL_3(waitSync, WaitSync, WebGLId, WGC3Dbitfield, WGC3Duint64)
1129
1130 GrGLInterface* WebGraphicsContext3DImpl::createGrGLInterface() {
1131   return skia_bindings::CreateCommandBufferSkiaGLBinding();
1132 }
1133
1134 ::gpu::gles2::GLES2ImplementationErrorMessageCallback*
1135     WebGraphicsContext3DImpl::getErrorMessageCallback() {
1136   if (!client_error_message_callback_) {
1137     client_error_message_callback_.reset(
1138         new WebGraphicsContext3DErrorMessageCallback(this));
1139   }
1140   return client_error_message_callback_.get();
1141 }
1142
1143 void WebGraphicsContext3DImpl::OnErrorMessage(
1144     const std::string& message, int id) {
1145   if (error_message_callback_) {
1146     blink::WebString str = blink::WebString::fromUTF8(message.c_str());
1147     error_message_callback_->onErrorMessage(str, id);
1148   }
1149 }
1150
1151 // TODO(bajones): Look into removing these functions from the blink interface
1152 void WebGraphicsContext3DImpl::prepareTexture() {
1153   NOTREACHED();
1154 }
1155
1156 void WebGraphicsContext3DImpl::postSubBufferCHROMIUM(
1157     int x, int y, int width, int height) {
1158   NOTREACHED();
1159 }
1160
1161 void WebGraphicsContext3DImpl::setVisibilityCHROMIUM(
1162     bool visible) {
1163   NOTREACHED();
1164 }
1165
1166 void WebGraphicsContext3DImpl::copyTextureToParentTextureCHROMIUM(
1167     WebGLId texture, WebGLId parentTexture) {
1168   NOTIMPLEMENTED();
1169 }
1170
1171 void WebGraphicsContext3DImpl::releaseShaderCompiler() {
1172 }
1173
1174 // static
1175 void WebGraphicsContext3DImpl::ConvertAttributes(
1176     const blink::WebGraphicsContext3D::Attributes& attributes,
1177     ::gpu::gles2::ContextCreationAttribHelper* output_attribs) {
1178   output_attribs->alpha_size = attributes.alpha ? 8 : 0;
1179   output_attribs->depth_size = attributes.depth ? 24 : 0;
1180   output_attribs->stencil_size = attributes.stencil ? 8 : 0;
1181   output_attribs->samples = attributes.antialias ? 4 : 0;
1182   output_attribs->sample_buffers = attributes.antialias ? 1 : 0;
1183   output_attribs->fail_if_major_perf_caveat =
1184       attributes.failIfMajorPerformanceCaveat;
1185   output_attribs->bind_generates_resource = false;
1186 }
1187
1188 }  // namespace gpu_blink