gpu/blink/webgraphicscontext3d_impl.h

   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 #ifndef GPU_BLINK_WEBGRAPHICSCONTEXT3D_IMPL_H_
   6 #define GPU_BLINK_WEBGRAPHICSCONTEXT3D_IMPL_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/callback.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "gpu/blink/gpu_blink_export.h"
  14 #include "third_party/WebKit/public/platform/WebGraphicsContext3D.h"
  15 #include "third_party/WebKit/public/platform/WebString.h"
  16
  17 namespace gpu {
  18
  19 namespace gles2 {
  20 class GLES2Interface;
  21 class GLES2ImplementationErrorMessageCallback;
  22 struct ContextCreationAttribHelper;
  23 }
  24 }
  25
  26 namespace gpu_blink {
  27
  28 class WebGraphicsContext3DErrorMessageCallback;
  29
  30 class GPU_BLINK_EXPORT WebGraphicsContext3DImpl
  31     : public NON_EXPORTED_BASE(blink::WebGraphicsContext3D) {
  32  public:
  33   virtual ~WebGraphicsContext3DImpl();
  34
  35   //----------------------------------------------------------------------
  36   // WebGraphicsContext3D methods
  37
  38   virtual uint32_t lastFlushID();
  39
  40   virtual unsigned int insertSyncPoint();
  41   virtual void waitSyncPoint(unsigned int sync_point);
  42
  43   virtual void loseContextCHROMIUM(blink::WGC3Denum current,
  44                                    blink::WGC3Denum other);
  45
  46   virtual void reshapeWithScaleFactor(
  47       int width, int height, float scale_factor);
  48
  49   virtual void prepareTexture();
  50   virtual void postSubBufferCHROMIUM(int x, int y, int width, int height);
  51
  52   virtual void activeTexture(blink::WGC3Denum texture);
  53   virtual void attachShader(blink::WebGLId program, blink::WebGLId shader);
  54   virtual void bindAttribLocation(blink::WebGLId program,
  55                                   blink::WGC3Duint index,
  56                                   const blink::WGC3Dchar* name);
  57   virtual void bindBuffer(blink::WGC3Denum target, blink::WebGLId buffer);
  58   virtual void bindFramebuffer(blink::WGC3Denum target,
  59                                blink::WebGLId framebuffer);
  60   virtual void bindRenderbuffer(blink::WGC3Denum target,
  61                                 blink::WebGLId renderbuffer);
  62   virtual void bindTexture(blink::WGC3Denum target, blink::WebGLId texture);
  63   virtual void blendColor(blink::WGC3Dclampf red,
  64                           blink::WGC3Dclampf green,
  65                           blink::WGC3Dclampf blue,
  66                           blink::WGC3Dclampf alpha);
  67   virtual void blendEquation(blink::WGC3Denum mode);
  68   virtual void blendEquationSeparate(blink::WGC3Denum modeRGB,
  69                                      blink::WGC3Denum modeAlpha);
  70   virtual void blendFunc(blink::WGC3Denum sfactor, blink::WGC3Denum dfactor);
  71   virtual void blendFuncSeparate(blink::WGC3Denum srcRGB,
  72                                  blink::WGC3Denum dstRGB,
  73                                  blink::WGC3Denum srcAlpha,
  74                                  blink::WGC3Denum dstAlpha);
  75
  76   virtual void bufferData(blink::WGC3Denum target,
  77                           blink::WGC3Dsizeiptr size,
  78                           const void* data,
  79                           blink::WGC3Denum usage);
  80   virtual void bufferSubData(blink::WGC3Denum target,
  81                              blink::WGC3Dintptr offset,
  82                              blink::WGC3Dsizeiptr size,
  83                              const void* data);
  84
  85   virtual blink::WGC3Denum checkFramebufferStatus(blink::WGC3Denum target);
  86   virtual void clear(blink::WGC3Dbitfield mask);
  87   virtual void clearColor(blink::WGC3Dclampf red,
  88                           blink::WGC3Dclampf green,
  89                           blink::WGC3Dclampf blue,
  90                           blink::WGC3Dclampf alpha);
  91   virtual void clearDepth(blink::WGC3Dclampf depth);
  92   virtual void clearStencil(blink::WGC3Dint s);
  93   virtual void colorMask(blink::WGC3Dboolean red,
  94                          blink::WGC3Dboolean green,
  95                          blink::WGC3Dboolean blue,
  96                          blink::WGC3Dboolean alpha);
  97   virtual void compileShader(blink::WebGLId shader);
  98
  99   virtual void compressedTexImage2D(blink::WGC3Denum target,
 100                                     blink::WGC3Dint level,
 101                                     blink::WGC3Denum internalformat,
 102                                     blink::WGC3Dsizei width,
 103                                     blink::WGC3Dsizei height,
 104                                     blink::WGC3Dint border,
 105                                     blink::WGC3Dsizei imageSize,
 106                                     const void* data);
 107   virtual void compressedTexSubImage2D(blink::WGC3Denum target,
 108                                        blink::WGC3Dint level,
 109                                        blink::WGC3Dint xoffset,
 110                                        blink::WGC3Dint yoffset,
 111                                        blink::WGC3Dsizei width,
 112                                        blink::WGC3Dsizei height,
 113                                        blink::WGC3Denum format,
 114                                        blink::WGC3Dsizei imageSize,
 115                                        const void* data);
 116   virtual void copyTexImage2D(blink::WGC3Denum target,
 117                               blink::WGC3Dint level,
 118                               blink::WGC3Denum internalformat,
 119                               blink::WGC3Dint x,
 120                               blink::WGC3Dint y,
 121                               blink::WGC3Dsizei width,
 122                               blink::WGC3Dsizei height,
 123                               blink::WGC3Dint border);
 124   virtual void copyTexSubImage2D(blink::WGC3Denum target,
 125                                  blink::WGC3Dint level,
 126                                  blink::WGC3Dint xoffset,
 127                                  blink::WGC3Dint yoffset,
 128                                  blink::WGC3Dint x,
 129                                  blink::WGC3Dint y,
 130                                  blink::WGC3Dsizei width,
 131                                  blink::WGC3Dsizei height);
 132   virtual void cullFace(blink::WGC3Denum mode);
 133   virtual void depthFunc(blink::WGC3Denum func);
 134   virtual void depthMask(blink::WGC3Dboolean flag);
 135   virtual void depthRange(blink::WGC3Dclampf zNear, blink::WGC3Dclampf zFar);
 136   virtual void detachShader(blink::WebGLId program, blink::WebGLId shader);
 137   virtual void disable(blink::WGC3Denum cap);
 138   virtual void disableVertexAttribArray(blink::WGC3Duint index);
 139   virtual void drawArrays(blink::WGC3Denum mode,
 140                           blink::WGC3Dint first,
 141                           blink::WGC3Dsizei count);
 142   virtual void drawElements(blink::WGC3Denum mode,
 143                             blink::WGC3Dsizei count,
 144                             blink::WGC3Denum type,
 145                             blink::WGC3Dintptr offset);
 146
 147   virtual void enable(blink::WGC3Denum cap);
 148   virtual void enableVertexAttribArray(blink::WGC3Duint index);
 149   virtual void finish();
 150   virtual void flush();
 151   virtual void framebufferRenderbuffer(blink::WGC3Denum target,
 152                                        blink::WGC3Denum attachment,
 153                                        blink::WGC3Denum renderbuffertarget,
 154                                        blink::WebGLId renderbuffer);
 155   virtual void framebufferTexture2D(blink::WGC3Denum target,
 156                                     blink::WGC3Denum attachment,
 157                                     blink::WGC3Denum textarget,
 158                                     blink::WebGLId texture,
 159                                     blink::WGC3Dint level);
 160   virtual void frontFace(blink::WGC3Denum mode);
 161   virtual void generateMipmap(blink::WGC3Denum target);
 162
 163   virtual bool getActiveAttrib(blink::WebGLId program,
 164                                blink::WGC3Duint index,
 165                                ActiveInfo&);
 166   virtual bool getActiveUniform(blink::WebGLId program,
 167                                 blink::WGC3Duint index,
 168                                 ActiveInfo&);
 169
 170   virtual void getAttachedShaders(blink::WebGLId program,
 171                                   blink::WGC3Dsizei maxCount,
 172                                   blink::WGC3Dsizei* count,
 173                                   blink::WebGLId* shaders);
 174
 175   virtual blink::WGC3Dint getAttribLocation(blink::WebGLId program,
 176                                             const blink::WGC3Dchar* name);
 177
 178   virtual void getBooleanv(blink::WGC3Denum pname, blink::WGC3Dboolean* value);
 179
 180   virtual void getBufferParameteriv(blink::WGC3Denum target,
 181                                     blink::WGC3Denum pname,
 182                                     blink::WGC3Dint* value);
 183
 184   virtual blink::WGC3Denum getError();
 185
 186   virtual void getFloatv(blink::WGC3Denum pname, blink::WGC3Dfloat* value);
 187
 188   virtual void getFramebufferAttachmentParameteriv(blink::WGC3Denum target,
 189                                                    blink::WGC3Denum attachment,
 190                                                    blink::WGC3Denum pname,
 191                                                    blink::WGC3Dint* value);
 192
 193   virtual void getIntegerv(blink::WGC3Denum pname, blink::WGC3Dint* value);
 194
 195   virtual void getInteger64v(blink::WGC3Denum pname, blink::WGC3Dint64* value);
 196
 197   virtual void getProgramiv(blink::WebGLId program,
 198                             blink::WGC3Denum pname,
 199                             blink::WGC3Dint* value);
 200
 201   virtual blink::WebString getProgramInfoLog(blink::WebGLId program);
 202
 203   virtual void getRenderbufferParameteriv(blink::WGC3Denum target,
 204                                           blink::WGC3Denum pname,
 205                                           blink::WGC3Dint* value);
 206
 207   virtual void getShaderiv(blink::WebGLId shader,
 208                            blink::WGC3Denum pname,
 209                            blink::WGC3Dint* value);
 210
 211   virtual blink::WebString getShaderInfoLog(blink::WebGLId shader);
 212
 213   virtual void getShaderPrecisionFormat(blink::WGC3Denum shadertype,
 214                                         blink::WGC3Denum precisiontype,
 215                                         blink::WGC3Dint* range,
 216                                         blink::WGC3Dint* precision);
 217
 218   virtual blink::WebString getShaderSource(blink::WebGLId shader);
 219   virtual blink::WebString getString(blink::WGC3Denum name);
 220
 221   virtual void getTexParameterfv(blink::WGC3Denum target,
 222                                  blink::WGC3Denum pname,
 223                                  blink::WGC3Dfloat* value);
 224   virtual void getTexParameteriv(blink::WGC3Denum target,
 225                                  blink::WGC3Denum pname,
 226                                  blink::WGC3Dint* value);
 227
 228   virtual void getUniformfv(blink::WebGLId program,
 229                             blink::WGC3Dint location,
 230                             blink::WGC3Dfloat* value);
 231   virtual void getUniformiv(blink::WebGLId program,
 232                             blink::WGC3Dint location,
 233                             blink::WGC3Dint* value);
 234
 235   virtual blink::WGC3Dint getUniformLocation(blink::WebGLId program,
 236                                              const blink::WGC3Dchar* name);
 237
 238   virtual void getVertexAttribfv(blink::WGC3Duint index,
 239                                  blink::WGC3Denum pname,
 240                                  blink::WGC3Dfloat* value);
 241   virtual void getVertexAttribiv(blink::WGC3Duint index,
 242                                  blink::WGC3Denum pname,
 243                                  blink::WGC3Dint* value);
 244
 245   virtual blink::WGC3Dsizeiptr getVertexAttribOffset(blink::WGC3Duint index,
 246                                                      blink::WGC3Denum pname);
 247
 248   virtual void hint(blink::WGC3Denum target, blink::WGC3Denum mode);
 249   virtual blink::WGC3Dboolean isBuffer(blink::WebGLId buffer);
 250   virtual blink::WGC3Dboolean isEnabled(blink::WGC3Denum cap);
 251   virtual blink::WGC3Dboolean isFramebuffer(blink::WebGLId framebuffer);
 252   virtual blink::WGC3Dboolean isProgram(blink::WebGLId program);
 253   virtual blink::WGC3Dboolean isRenderbuffer(blink::WebGLId renderbuffer);
 254   virtual blink::WGC3Dboolean isShader(blink::WebGLId shader);
 255   virtual blink::WGC3Dboolean isTexture(blink::WebGLId texture);
 256   virtual void lineWidth(blink::WGC3Dfloat);
 257   virtual void linkProgram(blink::WebGLId program);
 258   virtual void pixelStorei(blink::WGC3Denum pname, blink::WGC3Dint param);
 259   virtual void polygonOffset(blink::WGC3Dfloat factor, blink::WGC3Dfloat units);
 260
 261   virtual void readPixels(blink::WGC3Dint x,
 262                           blink::WGC3Dint y,
 263                           blink::WGC3Dsizei width,
 264                           blink::WGC3Dsizei height,
 265                           blink::WGC3Denum format,
 266                           blink::WGC3Denum type,
 267                           void* pixels);
 268
 269   virtual void releaseShaderCompiler();
 270   virtual void renderbufferStorage(blink::WGC3Denum target,
 271                                    blink::WGC3Denum internalformat,
 272                                    blink::WGC3Dsizei width,
 273                                    blink::WGC3Dsizei height);
 274   virtual void sampleCoverage(blink::WGC3Dfloat value,
 275                               blink::WGC3Dboolean invert);
 276   virtual void scissor(blink::WGC3Dint x,
 277                        blink::WGC3Dint y,
 278                        blink::WGC3Dsizei width,
 279                        blink::WGC3Dsizei height);
 280   virtual void shaderSource(blink::WebGLId shader,
 281                             const blink::WGC3Dchar* string);
 282   virtual void stencilFunc(blink::WGC3Denum func,
 283                            blink::WGC3Dint ref,
 284                            blink::WGC3Duint mask);
 285   virtual void stencilFuncSeparate(blink::WGC3Denum face,
 286                                    blink::WGC3Denum func,
 287                                    blink::WGC3Dint ref,
 288                                    blink::WGC3Duint mask);
 289   virtual void stencilMask(blink::WGC3Duint mask);
 290   virtual void stencilMaskSeparate(blink::WGC3Denum face,
 291                                    blink::WGC3Duint mask);
 292   virtual void stencilOp(blink::WGC3Denum fail,
 293                          blink::WGC3Denum zfail,
 294                          blink::WGC3Denum zpass);
 295   virtual void stencilOpSeparate(blink::WGC3Denum face,
 296                                  blink::WGC3Denum fail,
 297                                  blink::WGC3Denum zfail,
 298                                  blink::WGC3Denum zpass);
 299
 300   virtual void texImage2D(blink::WGC3Denum target,
 301                           blink::WGC3Dint level,
 302                           blink::WGC3Denum internalformat,
 303                           blink::WGC3Dsizei width,
 304                           blink::WGC3Dsizei height,
 305                           blink::WGC3Dint border,
 306                           blink::WGC3Denum format,
 307                           blink::WGC3Denum type,
 308                           const void* pixels);
 309
 310   virtual void texParameterf(blink::WGC3Denum target,
 311                              blink::WGC3Denum pname,
 312                              blink::WGC3Dfloat param);
 313   virtual void texParameteri(blink::WGC3Denum target,
 314                              blink::WGC3Denum pname,
 315                              blink::WGC3Dint param);
 316
 317   virtual void texSubImage2D(blink::WGC3Denum target,
 318                              blink::WGC3Dint level,
 319                              blink::WGC3Dint xoffset,
 320                              blink::WGC3Dint yoffset,
 321                              blink::WGC3Dsizei width,
 322                              blink::WGC3Dsizei height,
 323                              blink::WGC3Denum format,
 324                              blink::WGC3Denum type,
 325                              const void* pixels);
 326
 327   virtual void uniform1f(blink::WGC3Dint location, blink::WGC3Dfloat x);
 328   virtual void uniform1fv(blink::WGC3Dint location,
 329                           blink::WGC3Dsizei count,
 330                           const blink::WGC3Dfloat* v);
 331   virtual void uniform1i(blink::WGC3Dint location, blink::WGC3Dint x);
 332   virtual void uniform1iv(blink::WGC3Dint location,
 333                           blink::WGC3Dsizei count,
 334                           const blink::WGC3Dint* v);
 335   virtual void uniform2f(blink::WGC3Dint location,
 336                          blink::WGC3Dfloat x,
 337                          blink::WGC3Dfloat y);
 338   virtual void uniform2fv(blink::WGC3Dint location,
 339                           blink::WGC3Dsizei count,
 340                           const blink::WGC3Dfloat* v);
 341   virtual void uniform2i(blink::WGC3Dint location,
 342                          blink::WGC3Dint x,
 343                          blink::WGC3Dint y);
 344   virtual void uniform2iv(blink::WGC3Dint location,
 345                           blink::WGC3Dsizei count,
 346                           const blink::WGC3Dint* v);
 347   virtual void uniform3f(blink::WGC3Dint location,
 348                          blink::WGC3Dfloat x,
 349                          blink::WGC3Dfloat y,
 350                          blink::WGC3Dfloat z);
 351   virtual void uniform3fv(blink::WGC3Dint location,
 352                           blink::WGC3Dsizei count,
 353                           const blink::WGC3Dfloat* v);
 354   virtual void uniform3i(blink::WGC3Dint location,
 355                          blink::WGC3Dint x,
 356                          blink::WGC3Dint y,
 357                          blink::WGC3Dint z);
 358   virtual void uniform3iv(blink::WGC3Dint location,
 359                           blink::WGC3Dsizei count,
 360                           const blink::WGC3Dint* v);
 361   virtual void uniform4f(blink::WGC3Dint location,
 362                          blink::WGC3Dfloat x,
 363                          blink::WGC3Dfloat y,
 364                          blink::WGC3Dfloat z,
 365                          blink::WGC3Dfloat w);
 366   virtual void uniform4fv(blink::WGC3Dint location,
 367                           blink::WGC3Dsizei count,
 368                           const blink::WGC3Dfloat* v);
 369   virtual void uniform4i(blink::WGC3Dint location,
 370                          blink::WGC3Dint x,
 371                          blink::WGC3Dint y,
 372                          blink::WGC3Dint z,
 373                          blink::WGC3Dint w);
 374   virtual void uniform4iv(blink::WGC3Dint location,
 375                           blink::WGC3Dsizei count,
 376                           const blink::WGC3Dint* v);
 377   virtual void uniformMatrix2fv(blink::WGC3Dint location,
 378                                 blink::WGC3Dsizei count,
 379                                 blink::WGC3Dboolean transpose,
 380                                 const blink::WGC3Dfloat* value);
 381   virtual void uniformMatrix3fv(blink::WGC3Dint location,
 382                                 blink::WGC3Dsizei count,
 383                                 blink::WGC3Dboolean transpose,
 384                                 const blink::WGC3Dfloat* value);
 385   virtual void uniformMatrix4fv(blink::WGC3Dint location,
 386                                 blink::WGC3Dsizei count,
 387                                 blink::WGC3Dboolean transpose,
 388                                 const blink::WGC3Dfloat* value);
 389
 390   virtual void useProgram(blink::WebGLId program);
 391   virtual void validateProgram(blink::WebGLId program);
 392
 393   virtual void vertexAttrib1f(blink::WGC3Duint index, blink::WGC3Dfloat x);
 394   virtual void vertexAttrib1fv(blink::WGC3Duint index,
 395                                const blink::WGC3Dfloat* values);
 396   virtual void vertexAttrib2f(blink::WGC3Duint index,
 397                               blink::WGC3Dfloat x,
 398                               blink::WGC3Dfloat y);
 399   virtual void vertexAttrib2fv(blink::WGC3Duint index,
 400                                const blink::WGC3Dfloat* values);
 401   virtual void vertexAttrib3f(blink::WGC3Duint index,
 402                               blink::WGC3Dfloat x,
 403                               blink::WGC3Dfloat y,
 404                               blink::WGC3Dfloat z);
 405   virtual void vertexAttrib3fv(blink::WGC3Duint index,
 406                                const blink::WGC3Dfloat* values);
 407   virtual void vertexAttrib4f(blink::WGC3Duint index,
 408                               blink::WGC3Dfloat x,
 409                               blink::WGC3Dfloat y,
 410                               blink::WGC3Dfloat z,
 411                               blink::WGC3Dfloat w);
 412   virtual void vertexAttrib4fv(blink::WGC3Duint index,
 413                                const blink::WGC3Dfloat* values);
 414   virtual void vertexAttribPointer(blink::WGC3Duint index,
 415                                    blink::WGC3Dint size,
 416                                    blink::WGC3Denum type,
 417                                    blink::WGC3Dboolean normalized,
 418                                    blink::WGC3Dsizei stride,
 419                                    blink::WGC3Dintptr offset);
 420
 421   virtual void viewport(blink::WGC3Dint x,
 422                         blink::WGC3Dint y,
 423                         blink::WGC3Dsizei width,
 424                         blink::WGC3Dsizei height);
 425
 426   virtual blink::WebGLId createBuffer();
 427   virtual blink::WebGLId createFramebuffer();
 428   virtual blink::WebGLId createRenderbuffer();
 429   virtual blink::WebGLId createTexture();
 430
 431   virtual void deleteBuffer(blink::WebGLId);
 432   virtual void deleteFramebuffer(blink::WebGLId);
 433   virtual void deleteRenderbuffer(blink::WebGLId);
 434   virtual void deleteTexture(blink::WebGLId);
 435
 436   virtual blink::WebGLId createProgram();
 437   virtual blink::WebGLId createShader(blink::WGC3Denum);
 438
 439   virtual void deleteProgram(blink::WebGLId);
 440   virtual void deleteShader(blink::WebGLId);
 441
 442   virtual void synthesizeGLError(blink::WGC3Denum);
 443
 444   virtual void* mapBufferSubDataCHROMIUM(blink::WGC3Denum target,
 445                                          blink::WGC3Dintptr offset,
 446                                          blink::WGC3Dsizeiptr size,
 447                                          blink::WGC3Denum access);
 448   virtual void unmapBufferSubDataCHROMIUM(const void*);
 449   virtual void* mapTexSubImage2DCHROMIUM(blink::WGC3Denum target,
 450                                          blink::WGC3Dint level,
 451                                          blink::WGC3Dint xoffset,
 452                                          blink::WGC3Dint yoffset,
 453                                          blink::WGC3Dsizei width,
 454                                          blink::WGC3Dsizei height,
 455                                          blink::WGC3Denum format,
 456                                          blink::WGC3Denum type,
 457                                          blink::WGC3Denum access);
 458   virtual void unmapTexSubImage2DCHROMIUM(const void*);
 459
 460   virtual void setVisibilityCHROMIUM(bool visible);
 461
 462   virtual void discardFramebufferEXT(blink::WGC3Denum target,
 463                                      blink::WGC3Dsizei numAttachments,
 464                                      const blink::WGC3Denum* attachments);
 465   virtual void copyTextureToParentTextureCHROMIUM(blink::WebGLId texture,
 466                                                   blink::WebGLId parentTexture);
 467
 468   virtual blink::WebString getRequestableExtensionsCHROMIUM();
 469   virtual void requestExtensionCHROMIUM(const char*);
 470
 471   virtual void blitFramebufferCHROMIUM(blink::WGC3Dint srcX0,
 472                                        blink::WGC3Dint srcY0,
 473                                        blink::WGC3Dint srcX1,
 474                                        blink::WGC3Dint srcY1,
 475                                        blink::WGC3Dint dstX0,
 476                                        blink::WGC3Dint dstY0,
 477                                        blink::WGC3Dint dstX1,
 478                                        blink::WGC3Dint dstY1,
 479                                        blink::WGC3Dbitfield mask,
 480                                        blink::WGC3Denum filter);
 481   virtual void renderbufferStorageMultisampleCHROMIUM(
 482       blink::WGC3Denum target,
 483       blink::WGC3Dsizei samples,
 484       blink::WGC3Denum internalformat,
 485       blink::WGC3Dsizei width,
 486       blink::WGC3Dsizei height);
 487
 488   virtual blink::WebString getTranslatedShaderSourceANGLE(
 489       blink::WebGLId shader);
 490
 491   virtual void setContextLostCallback(
 492       WebGraphicsContext3D::WebGraphicsContextLostCallback* callback);
 493
 494   virtual void setErrorMessageCallback(
 495       WebGraphicsContext3D::WebGraphicsErrorMessageCallback* callback);
 496
 497   virtual void texImageIOSurface2DCHROMIUM(blink::WGC3Denum target,
 498                                            blink::WGC3Dint width,
 499                                            blink::WGC3Dint height,
 500                                            blink::WGC3Duint ioSurfaceId,
 501                                            blink::WGC3Duint plane);
 502
 503   virtual void texStorage2DEXT(blink::WGC3Denum target,
 504                                blink::WGC3Dint levels,
 505                                blink::WGC3Duint internalformat,
 506                                blink::WGC3Dint width,
 507                                blink::WGC3Dint height);
 508
 509   virtual blink::WebGLId createQueryEXT();
 510   virtual void deleteQueryEXT(blink::WebGLId query);
 511   virtual blink::WGC3Dboolean isQueryEXT(blink::WGC3Duint query);
 512   virtual void beginQueryEXT(blink::WGC3Denum target, blink::WebGLId query);
 513   virtual void endQueryEXT(blink::WGC3Denum target);
 514   virtual void getQueryivEXT(blink::WGC3Denum target,
 515                              blink::WGC3Denum pname,
 516                              blink::WGC3Dint* params);
 517   virtual void getQueryObjectuivEXT(blink::WebGLId query,
 518                                     blink::WGC3Denum pname,
 519                                     blink::WGC3Duint* params);
 520
 521   void copyTextureCHROMIUM(
 522       blink::WGC3Denum target,
 523       blink::WebGLId source_id,
 524       blink::WebGLId dest_id,
 525       blink::WGC3Denum internal_format,
 526       blink::WGC3Denum dest_type,
 527       blink::WGC3Dboolean unpack_flip_y,
 528       blink::WGC3Dboolean unpack_premultiply_alpha,
 529       blink::WGC3Dboolean unpack_unmultiply_alpha) override;
 530
 531   void copySubTextureCHROMIUM(
 532       blink::WGC3Denum target,
 533       blink::WebGLId source_id,
 534       blink::WebGLId dest_id,
 535       blink::WGC3Dint xoffset,
 536       blink::WGC3Dint yoffset,
 537       blink::WGC3Dint x,
 538       blink::WGC3Dint y,
 539       blink::WGC3Dsizei width,
 540       blink::WGC3Dsizei height,
 541       blink::WGC3Dboolean unpack_flip_y,
 542       blink::WGC3Dboolean unpack_premultiply_alpha,
 543       blink::WGC3Dboolean unpack_unmultiply_alpha) override;
 544
 545   virtual void bindUniformLocationCHROMIUM(blink::WebGLId program,
 546                                            blink::WGC3Dint location,
 547                                            const blink::WGC3Dchar* uniform);
 548
 549   virtual void shallowFlushCHROMIUM();
 550   virtual void shallowFinishCHROMIUM();
 551
 552   virtual void genMailboxCHROMIUM(blink::WGC3Dbyte* mailbox);
 553   virtual void produceTextureCHROMIUM(blink::WGC3Denum target,
 554                                       const blink::WGC3Dbyte* mailbox);
 555   virtual void produceTextureDirectCHROMIUM(blink::WebGLId texture,
 556                                             blink::WGC3Denum target,
 557                                             const blink::WGC3Dbyte* mailbox);
 558   virtual void consumeTextureCHROMIUM(blink::WGC3Denum target,
 559                                       const blink::WGC3Dbyte* mailbox);
 560   virtual blink::WebGLId createAndConsumeTextureCHROMIUM(
 561       blink::WGC3Denum target,
 562       const blink::WGC3Dbyte* mailbox);
 563
 564   virtual void genValuebuffersCHROMIUM(blink::WGC3Dsizei count,
 565                                        blink::WebGLId* ids);
 566   virtual blink::WebGLId createValuebufferCHROMIUM();
 567   virtual void deleteValuebuffersCHROMIUM(blink::WGC3Dsizei count,
 568                                           blink::WebGLId* ids);
 569   virtual void deleteValuebufferCHROMIUM(blink::WebGLId);
 570   virtual void bindValuebufferCHROMIUM(blink::WGC3Denum target,
 571                                        blink::WebGLId valuebuffer);
 572   virtual blink::WGC3Dboolean isValuebufferCHROMIUM(
 573       blink::WebGLId renderbuffer);
 574   virtual void subscribeValueCHROMIUM(blink::WGC3Denum target,
 575                                       blink::WGC3Denum subscription);
 576   virtual void populateSubscribedValuesCHROMIUM(blink::WGC3Denum target);
 577   virtual void uniformValuebufferCHROMIUM(blink::WGC3Dint location,
 578                                           blink::WGC3Denum target,
 579                                           blink::WGC3Denum subscription);
 580   virtual void traceBeginCHROMIUM(const blink::WGC3Dchar* category_name,
 581                                   const blink::WGC3Dchar* trace_name);
 582   virtual void traceEndCHROMIUM();
 583
 584   virtual void insertEventMarkerEXT(const blink::WGC3Dchar* marker);
 585   virtual void pushGroupMarkerEXT(const blink::WGC3Dchar* marker);
 586   virtual void popGroupMarkerEXT();
 587
 588   // GL_OES_vertex_array_object
 589   virtual blink::WebGLId createVertexArrayOES();
 590   virtual void deleteVertexArrayOES(blink::WebGLId array);
 591   virtual blink::WGC3Dboolean isVertexArrayOES(blink::WebGLId array);
 592   virtual void bindVertexArrayOES(blink::WebGLId array);
 593
 594   virtual void bindTexImage2DCHROMIUM(blink::WGC3Denum target,
 595                                       blink::WGC3Dint image_id);
 596   virtual void releaseTexImage2DCHROMIUM(blink::WGC3Denum target,
 597                                          blink::WGC3Dint image_id);
 598
 599   virtual void* mapBufferCHROMIUM(blink::WGC3Denum target,
 600                                   blink::WGC3Denum access);
 601   virtual blink::WGC3Dboolean unmapBufferCHROMIUM(blink::WGC3Denum target);
 602
 603   // Async pixel transfer functions.
 604   virtual void asyncTexImage2DCHROMIUM(blink::WGC3Denum target,
 605                                        blink::WGC3Dint level,
 606                                        blink::WGC3Denum internalformat,
 607                                        blink::WGC3Dsizei width,
 608                                        blink::WGC3Dsizei height,
 609                                        blink::WGC3Dint border,
 610                                        blink::WGC3Denum format,
 611                                        blink::WGC3Denum type,
 612                                        const void* pixels);
 613   virtual void asyncTexSubImage2DCHROMIUM(blink::WGC3Denum target,
 614                                           blink::WGC3Dint level,
 615                                           blink::WGC3Dint xoffset,
 616                                           blink::WGC3Dint yoffset,
 617                                           blink::WGC3Dsizei width,
 618                                           blink::WGC3Dsizei height,
 619                                           blink::WGC3Denum format,
 620                                           blink::WGC3Denum type,
 621                                           const void* pixels);
 622   virtual void waitAsyncTexImage2DCHROMIUM(blink::WGC3Denum target);
 623
 624   // GL_EXT_draw_buffers
 625   virtual void drawBuffersEXT(blink::WGC3Dsizei n,
 626                               const blink::WGC3Denum* bufs);
 627
 628   // GL_ANGLE_instanced_arrays
 629   virtual void drawArraysInstancedANGLE(blink::WGC3Denum mode,
 630                                         blink::WGC3Dint first,
 631                                         blink::WGC3Dsizei count,
 632                                         blink::WGC3Dsizei primcount);
 633   virtual void drawElementsInstancedANGLE(blink::WGC3Denum mode,
 634                                           blink::WGC3Dsizei count,
 635                                           blink::WGC3Denum type,
 636                                           blink::WGC3Dintptr offset,
 637                                           blink::WGC3Dsizei primcount);
 638   virtual void vertexAttribDivisorANGLE(blink::WGC3Duint index,
 639                                         blink::WGC3Duint divisor);
 640
 641   // GL_CHROMIUM_gpu_memory_buffer_image
 642   virtual blink::WGC3Duint createGpuMemoryBufferImageCHROMIUM(
 643       blink::WGC3Dsizei width,
 644       blink::WGC3Dsizei height,
 645       blink::WGC3Denum internalformat,
 646       blink::WGC3Denum usage);
 647   virtual void destroyImageCHROMIUM(blink::WGC3Duint image_id);
 648
 649   // GL_EXT_multisampled_render_to_texture
 650   virtual void framebufferTexture2DMultisampleEXT(blink::WGC3Denum target,
 651                                                   blink::WGC3Denum attachment,
 652                                                   blink::WGC3Denum textarget,
 653                                                   blink::WebGLId texture,
 654                                                   blink::WGC3Dint level,
 655                                                   blink::WGC3Dsizei samples);
 656   virtual void renderbufferStorageMultisampleEXT(
 657       blink::WGC3Denum target,
 658       blink::WGC3Dsizei samples,
 659       blink::WGC3Denum internalformat,
 660       blink::WGC3Dsizei width,
 661       blink::WGC3Dsizei height);
 662
 663   // OpenGL ES 3.0 functions not represented by pre-existing extensions
 664   virtual void beginTransformFeedback(blink::WGC3Denum primitiveMode);
 665   virtual void bindBufferBase(blink::WGC3Denum target,
 666                               blink::WGC3Duint index,
 667                               blink::WGC3Duint buffer);
 668   virtual void bindBufferRange(blink::WGC3Denum target,
 669                                blink::WGC3Duint index,
 670                                blink::WGC3Duint buffer,
 671                                blink::WGC3Dintptr offset,
 672                                blink::WGC3Dsizeiptr size);
 673   virtual void bindSampler(blink::WGC3Duint unit, blink::WebGLId sampler);
 674   virtual void bindTransformFeedback(blink::WGC3Denum target,
 675                                      blink::WebGLId transformfeedback);
 676   virtual void clearBufferfi(blink::WGC3Denum buffer,
 677                              blink::WGC3Dint drawbuffer,
 678                              blink::WGC3Dfloat depth,
 679                              blink::WGC3Dint stencil);
 680   virtual void clearBufferfv(blink::WGC3Denum buffer,
 681                              blink::WGC3Dint drawbuffer,
 682                              const blink::WGC3Dfloat* value);
 683   virtual void clearBufferiv(blink::WGC3Denum buffer,
 684                              blink::WGC3Dint drawbuffer,
 685                              const blink::WGC3Dint* value);
 686   virtual void clearBufferuiv(blink::WGC3Denum buffer,
 687                               blink::WGC3Dint drawbuffer,
 688                               const blink::WGC3Duint* value);
 689   virtual blink::WGC3Denum clientWaitSync(blink::WGC3Dsync sync,
 690                                           blink::WGC3Dbitfield flags,
 691                                           blink::WGC3Duint64 timeout);
 692   virtual void compressedTexImage3D(blink::WGC3Denum target,
 693                                     blink::WGC3Dint level,
 694                                     blink::WGC3Denum internalformat,
 695                                     blink::WGC3Dsizei width,
 696                                     blink::WGC3Dsizei height,
 697                                     blink::WGC3Dsizei depth,
 698                                     blink::WGC3Dint border,
 699                                     blink::WGC3Dsizei imageSize,
 700                                     const void *data);
 701   virtual void compressedTexSubImage3D(blink::WGC3Denum target,
 702                                        blink::WGC3Dint level,
 703                                        blink::WGC3Dint xoffset,
 704                                        blink::WGC3Dint yoffset,
 705                                        blink::WGC3Dint zoffset,
 706                                        blink::WGC3Dsizei width,
 707                                        blink::WGC3Dsizei height,
 708                                        blink::WGC3Dsizei depth,
 709                                        blink::WGC3Denum format,
 710                                        blink::WGC3Dsizei imageSize,
 711                                        const void *data);
 712   virtual void copyBufferSubData(blink::WGC3Denum readTarget,
 713                                  blink::WGC3Denum writeTarget,
 714                                  blink::WGC3Dintptr readOffset,
 715                                  blink::WGC3Dintptr writeOffset,
 716                                  blink::WGC3Dsizeiptr size);
 717   virtual void copyTexSubImage3D(blink::WGC3Denum target,
 718                                  blink::WGC3Dint level,
 719                                  blink::WGC3Dint xoffset,
 720                                  blink::WGC3Dint yoffset,
 721                                  blink::WGC3Dint zoffset,
 722                                  blink::WGC3Dint x,
 723                                  blink::WGC3Dint y,
 724                                  blink::WGC3Dsizei width,
 725                                  blink::WGC3Dsizei height);
 726   virtual blink::WebGLId createSampler();
 727   virtual blink::WebGLId createTransformFeedback();
 728   virtual void deleteSampler(blink::WebGLId sampler);
 729   virtual void deleteSync(blink::WGC3Dsync sync);
 730   virtual void deleteTransformFeedback(blink::WebGLId transformfeedback);
 731   virtual void drawRangeElements(blink::WGC3Denum mode,
 732                                  blink::WGC3Duint start,
 733                                  blink::WGC3Duint end,
 734                                  blink::WGC3Dsizei count,
 735                                  blink::WGC3Denum type,
 736                                  blink::WGC3Dintptr offset);
 737   virtual void endTransformFeedback(void);
 738   virtual blink::WGC3Dsync fenceSync(blink::WGC3Denum condition,
 739                                      blink::WGC3Dbitfield flags);
 740   virtual void framebufferTextureLayer(blink::WGC3Denum target,
 741                                        blink::WGC3Denum attachment,
 742                                        blink::WGC3Duint texture,
 743                                        blink::WGC3Dint level,
 744                                        blink::WGC3Dint layer);
 745   virtual void getActiveUniformBlockName(blink::WGC3Duint program,
 746                                          blink::WGC3Duint uniformBlockIndex,
 747                                          blink::WGC3Dsizei bufSize,
 748                                          blink::WGC3Dsizei* length,
 749                                          blink::WGC3Dchar* uniformBlockName);
 750   virtual void getActiveUniformBlockiv(blink::WGC3Duint program,
 751                                        blink::WGC3Duint uniformBlockIndex,
 752                                        blink::WGC3Denum pname,
 753                                        blink::WGC3Dint* params);
 754   virtual void getActiveUniformsiv(blink::WGC3Duint program,
 755                                    blink::WGC3Dsizei uniformCount,
 756                                    const blink::WGC3Duint *uniformIndices,
 757                                    blink::WGC3Denum pname,
 758                                    blink::WGC3Dint *params);
 759   virtual blink::WGC3Dint getFragDataLocation(blink::WGC3Duint program,
 760                                               const blink::WGC3Dchar* name);
 761   virtual void getInternalformativ(blink::WGC3Denum target,
 762                                    blink::WGC3Denum internalformat,
 763                                    blink::WGC3Denum pname,
 764                                    blink::WGC3Dsizei bufSize,
 765                                    blink::WGC3Dint* params);
 766   virtual void getSamplerParameterfv(blink::WGC3Duint sampler,
 767                                      blink::WGC3Denum pname,
 768                                      blink::WGC3Dfloat* params);
 769   virtual void getSamplerParameteriv(blink::WGC3Duint sampler,
 770                                      blink::WGC3Denum pname,
 771                                      blink::WGC3Dint* params);
 772   virtual void getTransformFeedbackVarying(blink::WGC3Duint program,
 773                                            blink::WGC3Duint index,
 774                                            blink::WGC3Dsizei bufSize,
 775                                            blink::WGC3Dsizei *length,
 776                                            blink::WGC3Dsizei *size,
 777                                            blink::WGC3Denum *type,
 778                                            blink::WGC3Dchar *name);
 779   virtual blink::WGC3Duint getUniformBlockIndex(
 780       blink::WGC3Duint program, const blink::WGC3Dchar* uniformBlockName);
 781   virtual void getUniformIndices(blink::WGC3Duint program,
 782                                  blink::WGC3Dsizei uniformCount,
 783                                  const blink::WGC3Dchar *const*uniformNames,
 784                                  blink::WGC3Duint *uniformIndices);
 785   virtual void getUniformuiv(blink::WGC3Duint program,
 786                              blink::WGC3Dint location,
 787                              blink::WGC3Duint *params);
 788   virtual void getVertexAttribIiv(blink::WGC3Duint index,
 789                                   blink::WGC3Denum pname,
 790                                   blink::WGC3Dint *params);
 791   virtual void getVertexAttribIuiv(blink::WGC3Duint index,
 792                                    blink::WGC3Denum pname,
 793                                    blink::WGC3Duint *params);
 794   virtual void invalidateFramebuffer(blink::WGC3Denum target,
 795                                      blink::WGC3Dsizei numAttachments,
 796                                      const blink::WGC3Denum* attachments);
 797   virtual void invalidateSubFramebuffer(blink::WGC3Denum target,
 798                                         blink::WGC3Dsizei numAttachments,
 799                                         const blink::WGC3Denum* attachments,
 800                                         blink::WGC3Dint x,
 801                                         blink::WGC3Dint y,
 802                                         blink::WGC3Dsizei width,
 803                                         blink::WGC3Dsizei height);
 804   virtual blink::WGC3Dboolean isSampler(blink::WebGLId sampler);
 805   virtual blink::WGC3Dboolean isSync(blink::WGC3Dsync sync);
 806   virtual blink::WGC3Dboolean isTransformFeedback(blink::WGC3Duint id);
 807   virtual void* mapBufferRange(blink::WGC3Denum target,
 808                                blink::WGC3Dintptr offset,
 809                                blink::WGC3Dsizeiptr length,
 810                                blink::WGC3Dbitfield access);
 811   virtual void pauseTransformFeedback(void);
 812   //virtual void programParameteri(blink::WGC3Duint program,
 813   //                               blink::WGC3Denum pname,
 814   //                               blink::WGC3Dint value);
 815   virtual void readBuffer(blink::WGC3Denum src);
 816   virtual void resumeTransformFeedback(void);
 817   virtual void samplerParameterf(blink::WGC3Duint sampler,
 818                                  blink::WGC3Denum pname,
 819                                  blink::WGC3Dfloat param);
 820   virtual void samplerParameterfv(blink::WGC3Duint sampler,
 821                                   blink::WGC3Denum pname,
 822                                   const blink::WGC3Dfloat* param);
 823   virtual void samplerParameteri(blink::WGC3Duint sampler,
 824                                  blink::WGC3Denum pname,
 825                                  blink::WGC3Dint param);
 826   virtual void samplerParameteriv(blink::WGC3Duint sampler,
 827                                   blink::WGC3Denum pname,
 828                                   const blink::WGC3Dint* param);
 829   virtual void texImage3D(blink::WGC3Denum target,
 830                           blink::WGC3Dint level,
 831                           blink::WGC3Dint internalformat,
 832                           blink::WGC3Dsizei width,
 833                           blink::WGC3Dsizei height,
 834                           blink::WGC3Dsizei depth,
 835                           blink::WGC3Dint border,
 836                           blink::WGC3Denum format,
 837                           blink::WGC3Denum type,
 838                           const void* pixels);
 839   virtual void texStorage3D(blink::WGC3Denum target,
 840                             blink::WGC3Dsizei levels,
 841                             blink::WGC3Denum internalformat,
 842                             blink::WGC3Dsizei width,
 843                             blink::WGC3Dsizei height,
 844                             blink::WGC3Dsizei depth);
 845   virtual void texSubImage3D(blink::WGC3Denum target,
 846                              blink::WGC3Dint level,
 847                              blink::WGC3Dint xoffset,
 848                              blink::WGC3Dint yoffset,
 849                              blink::WGC3Dint zoffset,
 850                              blink::WGC3Dsizei width,
 851                              blink::WGC3Dsizei height,
 852                              blink::WGC3Dsizei depth,
 853                              blink::WGC3Denum format,
 854                              blink::WGC3Denum type,
 855                              const void* pixels);
 856   virtual void transformFeedbackVaryings(
 857       blink::WGC3Duint program,
 858       blink::WGC3Dsizei count,
 859       const blink::WGC3Dchar* const* varyings,
 860       blink::WGC3Denum bufferMode);
 861   virtual void uniform1ui(blink::WGC3Dint location, blink::WGC3Duint x);
 862   virtual void uniform1uiv(blink::WGC3Dint location,
 863                            blink::WGC3Dsizei count,
 864                            const blink::WGC3Duint* value);
 865   virtual void uniform2ui(blink::WGC3Dint location,
 866                           blink::WGC3Duint x,
 867                           blink::WGC3Duint y);
 868   virtual void uniform2uiv(blink::WGC3Dint location,
 869                            blink::WGC3Dsizei count,
 870                            const blink::WGC3Duint* value);
 871   virtual void uniform3ui(blink::WGC3Dint location,
 872                           blink::WGC3Duint x,
 873                           blink::WGC3Duint y,
 874                           blink::WGC3Duint z);
 875   virtual void uniform3uiv(blink::WGC3Dint location,
 876                            blink::WGC3Dsizei count,
 877                            const blink::WGC3Duint* value);
 878   virtual void uniform4ui(blink::WGC3Dint location,
 879                           blink::WGC3Duint x,
 880                           blink::WGC3Duint y,
 881                           blink::WGC3Duint z,
 882                           blink::WGC3Duint w);
 883   virtual void uniform4uiv(blink::WGC3Dint location,
 884                            blink::WGC3Dsizei count,
 885                            const blink::WGC3Duint* value);
 886   virtual void uniformBlockBinding(blink::WGC3Duint program,
 887                                    blink::WGC3Duint uniformBlockIndex,
 888                                    blink::WGC3Duint uniformBlockBinding);
 889   virtual void uniformMatrix2x3fv(blink::WGC3Dint location,
 890                                   blink::WGC3Dsizei count,
 891                                   blink::WGC3Dboolean transpose,
 892                                   const blink::WGC3Dfloat* value);
 893   virtual void uniformMatrix2x4fv(blink::WGC3Dint location,
 894                                   blink::WGC3Dsizei count,
 895                                   blink::WGC3Dboolean transpose,
 896                                   const blink::WGC3Dfloat* value);
 897   virtual void uniformMatrix3x2fv(blink::WGC3Dint location,
 898                                   blink::WGC3Dsizei count,
 899                                   blink::WGC3Dboolean transpose,
 900                                   const blink::WGC3Dfloat* value);
 901   virtual void uniformMatrix3x4fv(blink::WGC3Dint location,
 902                                   blink::WGC3Dsizei count,
 903                                   blink::WGC3Dboolean transpose,
 904                                   const blink::WGC3Dfloat* value);
 905   virtual void uniformMatrix4x2fv(blink::WGC3Dint location,
 906                                   blink::WGC3Dsizei count,
 907                                   blink::WGC3Dboolean transpose,
 908                                   const blink::WGC3Dfloat* value);
 909   virtual void uniformMatrix4x3fv(blink::WGC3Dint location,
 910                                   blink::WGC3Dsizei count,
 911                                   blink::WGC3Dboolean transpose,
 912                                   const blink::WGC3Dfloat* value);
 913   virtual blink::WGC3Dboolean unmapBuffer(blink::WGC3Denum target);
 914   virtual void vertexAttribI4i(blink::WGC3Duint index,
 915                                blink::WGC3Dint x,
 916                                blink::WGC3Dint y,
 917                                blink::WGC3Dint z,
 918                                blink::WGC3Dint w);
 919   virtual void vertexAttribI4iv(blink::WGC3Duint index,
 920                                 const blink::WGC3Dint* v);
 921   virtual void vertexAttribI4ui(blink::WGC3Duint index,
 922                                 blink::WGC3Duint x,
 923                                 blink::WGC3Duint y,
 924                                 blink::WGC3Duint z,
 925                                 blink::WGC3Duint w);
 926   virtual void vertexAttribI4uiv(blink::WGC3Duint index,
 927                                  const blink::WGC3Duint* v);
 928   virtual void vertexAttribIPointer(blink::WGC3Duint index,
 929                                     blink::WGC3Dint size,
 930                                     blink::WGC3Denum type,
 931                                     blink::WGC3Dsizei stride,
 932                                     blink::WGC3Dintptr pointer);
 933   virtual void waitSync(blink::WGC3Dsync sync,
 934                         blink::WGC3Dbitfield flags,
 935                         blink::WGC3Duint64 timeout);
 936
 937   virtual bool isContextLost();
 938   virtual blink::WGC3Denum getGraphicsResetStatusARB();
 939
 940   virtual GrGLInterface* createGrGLInterface();
 941
 942   ::gpu::gles2::GLES2Interface* GetGLInterface() {
 943     return gl_;
 944   }
 945
 946   // Convert WebGL context creation attributes into command buffer / EGL size
 947   // requests.
 948   static void ConvertAttributes(
 949       const blink::WebGraphicsContext3D::Attributes& attributes,
 950       ::gpu::gles2::ContextCreationAttribHelper* output_attribs);
 951
 952  protected:
 953   friend class WebGraphicsContext3DErrorMessageCallback;
 954
 955   WebGraphicsContext3DImpl();
 956
 957   ::gpu::gles2::GLES2ImplementationErrorMessageCallback*
 958       getErrorMessageCallback();
 959   virtual void OnErrorMessage(const std::string& message, int id);
 960
 961   void setGLInterface(::gpu::gles2::GLES2Interface* gl) {
 962     gl_ = gl;
 963   }
 964
 965   bool initialized_;
 966   bool initialize_failed_;
 967
 968   WebGraphicsContext3D::WebGraphicsContextLostCallback* context_lost_callback_;
 969
 970   WebGraphicsContext3D::WebGraphicsErrorMessageCallback*
 971       error_message_callback_;
 972   scoped_ptr<WebGraphicsContext3DErrorMessageCallback>
 973       client_error_message_callback_;
 974
 975   // Errors raised by synthesizeGLError().
 976   std::vector<blink::WGC3Denum> synthetic_errors_;
 977
 978   ::gpu::gles2::GLES2Interface* gl_;
 979   bool lose_context_when_out_of_memory_;
 980   uint32_t flush_id_;
 981 };
 982
 983 }  // namespace gpu_blink
 984
 985 #endif  // GPU_BLINK_WEBGRAPHICSCONTEXT3D_IMPL_H_