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 getProgramiv(blink::WebGLId program,
 196                             blink::WGC3Denum pname,
 197                             blink::WGC3Dint* value);
 198
 199   virtual blink::WebString getProgramInfoLog(blink::WebGLId program);
 200
 201   virtual void getRenderbufferParameteriv(blink::WGC3Denum target,
 202                                           blink::WGC3Denum pname,
 203                                           blink::WGC3Dint* value);
 204
 205   virtual void getShaderiv(blink::WebGLId shader,
 206                            blink::WGC3Denum pname,
 207                            blink::WGC3Dint* value);
 208
 209   virtual blink::WebString getShaderInfoLog(blink::WebGLId shader);
 210
 211   virtual void getShaderPrecisionFormat(blink::WGC3Denum shadertype,
 212                                         blink::WGC3Denum precisiontype,
 213                                         blink::WGC3Dint* range,
 214                                         blink::WGC3Dint* precision);
 215
 216   virtual blink::WebString getShaderSource(blink::WebGLId shader);
 217   virtual blink::WebString getString(blink::WGC3Denum name);
 218
 219   virtual void getTexParameterfv(blink::WGC3Denum target,
 220                                  blink::WGC3Denum pname,
 221                                  blink::WGC3Dfloat* value);
 222   virtual void getTexParameteriv(blink::WGC3Denum target,
 223                                  blink::WGC3Denum pname,
 224                                  blink::WGC3Dint* value);
 225
 226   virtual void getUniformfv(blink::WebGLId program,
 227                             blink::WGC3Dint location,
 228                             blink::WGC3Dfloat* value);
 229   virtual void getUniformiv(blink::WebGLId program,
 230                             blink::WGC3Dint location,
 231                             blink::WGC3Dint* value);
 232
 233   virtual blink::WGC3Dint getUniformLocation(blink::WebGLId program,
 234                                              const blink::WGC3Dchar* name);
 235
 236   virtual void getVertexAttribfv(blink::WGC3Duint index,
 237                                  blink::WGC3Denum pname,
 238                                  blink::WGC3Dfloat* value);
 239   virtual void getVertexAttribiv(blink::WGC3Duint index,
 240                                  blink::WGC3Denum pname,
 241                                  blink::WGC3Dint* value);
 242
 243   virtual blink::WGC3Dsizeiptr getVertexAttribOffset(blink::WGC3Duint index,
 244                                                      blink::WGC3Denum pname);
 245
 246   virtual void hint(blink::WGC3Denum target, blink::WGC3Denum mode);
 247   virtual blink::WGC3Dboolean isBuffer(blink::WebGLId buffer);
 248   virtual blink::WGC3Dboolean isEnabled(blink::WGC3Denum cap);
 249   virtual blink::WGC3Dboolean isFramebuffer(blink::WebGLId framebuffer);
 250   virtual blink::WGC3Dboolean isProgram(blink::WebGLId program);
 251   virtual blink::WGC3Dboolean isRenderbuffer(blink::WebGLId renderbuffer);
 252   virtual blink::WGC3Dboolean isShader(blink::WebGLId shader);
 253   virtual blink::WGC3Dboolean isTexture(blink::WebGLId texture);
 254   virtual void lineWidth(blink::WGC3Dfloat);
 255   virtual void linkProgram(blink::WebGLId program);
 256   virtual void pixelStorei(blink::WGC3Denum pname, blink::WGC3Dint param);
 257   virtual void polygonOffset(blink::WGC3Dfloat factor, blink::WGC3Dfloat units);
 258
 259   virtual void readPixels(blink::WGC3Dint x,
 260                           blink::WGC3Dint y,
 261                           blink::WGC3Dsizei width,
 262                           blink::WGC3Dsizei height,
 263                           blink::WGC3Denum format,
 264                           blink::WGC3Denum type,
 265                           void* pixels);
 266
 267   virtual void releaseShaderCompiler();
 268   virtual void renderbufferStorage(blink::WGC3Denum target,
 269                                    blink::WGC3Denum internalformat,
 270                                    blink::WGC3Dsizei width,
 271                                    blink::WGC3Dsizei height);
 272   virtual void sampleCoverage(blink::WGC3Dfloat value,
 273                               blink::WGC3Dboolean invert);
 274   virtual void scissor(blink::WGC3Dint x,
 275                        blink::WGC3Dint y,
 276                        blink::WGC3Dsizei width,
 277                        blink::WGC3Dsizei height);
 278   virtual void shaderSource(blink::WebGLId shader,
 279                             const blink::WGC3Dchar* string);
 280   virtual void stencilFunc(blink::WGC3Denum func,
 281                            blink::WGC3Dint ref,
 282                            blink::WGC3Duint mask);
 283   virtual void stencilFuncSeparate(blink::WGC3Denum face,
 284                                    blink::WGC3Denum func,
 285                                    blink::WGC3Dint ref,
 286                                    blink::WGC3Duint mask);
 287   virtual void stencilMask(blink::WGC3Duint mask);
 288   virtual void stencilMaskSeparate(blink::WGC3Denum face,
 289                                    blink::WGC3Duint mask);
 290   virtual void stencilOp(blink::WGC3Denum fail,
 291                          blink::WGC3Denum zfail,
 292                          blink::WGC3Denum zpass);
 293   virtual void stencilOpSeparate(blink::WGC3Denum face,
 294                                  blink::WGC3Denum fail,
 295                                  blink::WGC3Denum zfail,
 296                                  blink::WGC3Denum zpass);
 297
 298   virtual void texImage2D(blink::WGC3Denum target,
 299                           blink::WGC3Dint level,
 300                           blink::WGC3Denum internalformat,
 301                           blink::WGC3Dsizei width,
 302                           blink::WGC3Dsizei height,
 303                           blink::WGC3Dint border,
 304                           blink::WGC3Denum format,
 305                           blink::WGC3Denum type,
 306                           const void* pixels);
 307
 308   virtual void texParameterf(blink::WGC3Denum target,
 309                              blink::WGC3Denum pname,
 310                              blink::WGC3Dfloat param);
 311   virtual void texParameteri(blink::WGC3Denum target,
 312                              blink::WGC3Denum pname,
 313                              blink::WGC3Dint param);
 314
 315   virtual void texSubImage2D(blink::WGC3Denum target,
 316                              blink::WGC3Dint level,
 317                              blink::WGC3Dint xoffset,
 318                              blink::WGC3Dint yoffset,
 319                              blink::WGC3Dsizei width,
 320                              blink::WGC3Dsizei height,
 321                              blink::WGC3Denum format,
 322                              blink::WGC3Denum type,
 323                              const void* pixels);
 324
 325   virtual void uniform1f(blink::WGC3Dint location, blink::WGC3Dfloat x);
 326   virtual void uniform1fv(blink::WGC3Dint location,
 327                           blink::WGC3Dsizei count,
 328                           const blink::WGC3Dfloat* v);
 329   virtual void uniform1i(blink::WGC3Dint location, blink::WGC3Dint x);
 330   virtual void uniform1iv(blink::WGC3Dint location,
 331                           blink::WGC3Dsizei count,
 332                           const blink::WGC3Dint* v);
 333   virtual void uniform2f(blink::WGC3Dint location,
 334                          blink::WGC3Dfloat x,
 335                          blink::WGC3Dfloat y);
 336   virtual void uniform2fv(blink::WGC3Dint location,
 337                           blink::WGC3Dsizei count,
 338                           const blink::WGC3Dfloat* v);
 339   virtual void uniform2i(blink::WGC3Dint location,
 340                          blink::WGC3Dint x,
 341                          blink::WGC3Dint y);
 342   virtual void uniform2iv(blink::WGC3Dint location,
 343                           blink::WGC3Dsizei count,
 344                           const blink::WGC3Dint* v);
 345   virtual void uniform3f(blink::WGC3Dint location,
 346                          blink::WGC3Dfloat x,
 347                          blink::WGC3Dfloat y,
 348                          blink::WGC3Dfloat z);
 349   virtual void uniform3fv(blink::WGC3Dint location,
 350                           blink::WGC3Dsizei count,
 351                           const blink::WGC3Dfloat* v);
 352   virtual void uniform3i(blink::WGC3Dint location,
 353                          blink::WGC3Dint x,
 354                          blink::WGC3Dint y,
 355                          blink::WGC3Dint z);
 356   virtual void uniform3iv(blink::WGC3Dint location,
 357                           blink::WGC3Dsizei count,
 358                           const blink::WGC3Dint* v);
 359   virtual void uniform4f(blink::WGC3Dint location,
 360                          blink::WGC3Dfloat x,
 361                          blink::WGC3Dfloat y,
 362                          blink::WGC3Dfloat z,
 363                          blink::WGC3Dfloat w);
 364   virtual void uniform4fv(blink::WGC3Dint location,
 365                           blink::WGC3Dsizei count,
 366                           const blink::WGC3Dfloat* v);
 367   virtual void uniform4i(blink::WGC3Dint location,
 368                          blink::WGC3Dint x,
 369                          blink::WGC3Dint y,
 370                          blink::WGC3Dint z,
 371                          blink::WGC3Dint w);
 372   virtual void uniform4iv(blink::WGC3Dint location,
 373                           blink::WGC3Dsizei count,
 374                           const blink::WGC3Dint* v);
 375   virtual void uniformMatrix2fv(blink::WGC3Dint location,
 376                                 blink::WGC3Dsizei count,
 377                                 blink::WGC3Dboolean transpose,
 378                                 const blink::WGC3Dfloat* value);
 379   virtual void uniformMatrix3fv(blink::WGC3Dint location,
 380                                 blink::WGC3Dsizei count,
 381                                 blink::WGC3Dboolean transpose,
 382                                 const blink::WGC3Dfloat* value);
 383   virtual void uniformMatrix4fv(blink::WGC3Dint location,
 384                                 blink::WGC3Dsizei count,
 385                                 blink::WGC3Dboolean transpose,
 386                                 const blink::WGC3Dfloat* value);
 387
 388   virtual void useProgram(blink::WebGLId program);
 389   virtual void validateProgram(blink::WebGLId program);
 390
 391   virtual void vertexAttrib1f(blink::WGC3Duint index, blink::WGC3Dfloat x);
 392   virtual void vertexAttrib1fv(blink::WGC3Duint index,
 393                                const blink::WGC3Dfloat* values);
 394   virtual void vertexAttrib2f(blink::WGC3Duint index,
 395                               blink::WGC3Dfloat x,
 396                               blink::WGC3Dfloat y);
 397   virtual void vertexAttrib2fv(blink::WGC3Duint index,
 398                                const blink::WGC3Dfloat* values);
 399   virtual void vertexAttrib3f(blink::WGC3Duint index,
 400                               blink::WGC3Dfloat x,
 401                               blink::WGC3Dfloat y,
 402                               blink::WGC3Dfloat z);
 403   virtual void vertexAttrib3fv(blink::WGC3Duint index,
 404                                const blink::WGC3Dfloat* values);
 405   virtual void vertexAttrib4f(blink::WGC3Duint index,
 406                               blink::WGC3Dfloat x,
 407                               blink::WGC3Dfloat y,
 408                               blink::WGC3Dfloat z,
 409                               blink::WGC3Dfloat w);
 410   virtual void vertexAttrib4fv(blink::WGC3Duint index,
 411                                const blink::WGC3Dfloat* values);
 412   virtual void vertexAttribPointer(blink::WGC3Duint index,
 413                                    blink::WGC3Dint size,
 414                                    blink::WGC3Denum type,
 415                                    blink::WGC3Dboolean normalized,
 416                                    blink::WGC3Dsizei stride,
 417                                    blink::WGC3Dintptr offset);
 418
 419   virtual void viewport(blink::WGC3Dint x,
 420                         blink::WGC3Dint y,
 421                         blink::WGC3Dsizei width,
 422                         blink::WGC3Dsizei height);
 423
 424   virtual blink::WebGLId createBuffer();
 425   virtual blink::WebGLId createFramebuffer();
 426   virtual blink::WebGLId createRenderbuffer();
 427   virtual blink::WebGLId createTexture();
 428
 429   virtual void deleteBuffer(blink::WebGLId);
 430   virtual void deleteFramebuffer(blink::WebGLId);
 431   virtual void deleteRenderbuffer(blink::WebGLId);
 432   virtual void deleteTexture(blink::WebGLId);
 433
 434   virtual blink::WebGLId createProgram();
 435   virtual blink::WebGLId createShader(blink::WGC3Denum);
 436
 437   virtual void deleteProgram(blink::WebGLId);
 438   virtual void deleteShader(blink::WebGLId);
 439
 440   virtual void synthesizeGLError(blink::WGC3Denum);
 441
 442   virtual void* mapBufferSubDataCHROMIUM(blink::WGC3Denum target,
 443                                          blink::WGC3Dintptr offset,
 444                                          blink::WGC3Dsizeiptr size,
 445                                          blink::WGC3Denum access);
 446   virtual void unmapBufferSubDataCHROMIUM(const void*);
 447   virtual void* mapTexSubImage2DCHROMIUM(blink::WGC3Denum target,
 448                                          blink::WGC3Dint level,
 449                                          blink::WGC3Dint xoffset,
 450                                          blink::WGC3Dint yoffset,
 451                                          blink::WGC3Dsizei width,
 452                                          blink::WGC3Dsizei height,
 453                                          blink::WGC3Denum format,
 454                                          blink::WGC3Denum type,
 455                                          blink::WGC3Denum access);
 456   virtual void unmapTexSubImage2DCHROMIUM(const void*);
 457
 458   virtual void setVisibilityCHROMIUM(bool visible);
 459
 460   virtual void discardFramebufferEXT(blink::WGC3Denum target,
 461                                      blink::WGC3Dsizei numAttachments,
 462                                      const blink::WGC3Denum* attachments);
 463   virtual void copyTextureToParentTextureCHROMIUM(blink::WebGLId texture,
 464                                                   blink::WebGLId parentTexture);
 465
 466   virtual blink::WebString getRequestableExtensionsCHROMIUM();
 467   virtual void requestExtensionCHROMIUM(const char*);
 468
 469   virtual void blitFramebufferCHROMIUM(blink::WGC3Dint srcX0,
 470                                        blink::WGC3Dint srcY0,
 471                                        blink::WGC3Dint srcX1,
 472                                        blink::WGC3Dint srcY1,
 473                                        blink::WGC3Dint dstX0,
 474                                        blink::WGC3Dint dstY0,
 475                                        blink::WGC3Dint dstX1,
 476                                        blink::WGC3Dint dstY1,
 477                                        blink::WGC3Dbitfield mask,
 478                                        blink::WGC3Denum filter);
 479   virtual void renderbufferStorageMultisampleCHROMIUM(
 480       blink::WGC3Denum target,
 481       blink::WGC3Dsizei samples,
 482       blink::WGC3Denum internalformat,
 483       blink::WGC3Dsizei width,
 484       blink::WGC3Dsizei height);
 485
 486   virtual blink::WebString getTranslatedShaderSourceANGLE(
 487       blink::WebGLId shader);
 488
 489   virtual void setContextLostCallback(
 490       WebGraphicsContext3D::WebGraphicsContextLostCallback* callback);
 491
 492   virtual void setErrorMessageCallback(
 493       WebGraphicsContext3D::WebGraphicsErrorMessageCallback* callback);
 494
 495   virtual void texImageIOSurface2DCHROMIUM(blink::WGC3Denum target,
 496                                            blink::WGC3Dint width,
 497                                            blink::WGC3Dint height,
 498                                            blink::WGC3Duint ioSurfaceId,
 499                                            blink::WGC3Duint plane);
 500
 501   virtual void texStorage2DEXT(blink::WGC3Denum target,
 502                                blink::WGC3Dint levels,
 503                                blink::WGC3Duint internalformat,
 504                                blink::WGC3Dint width,
 505                                blink::WGC3Dint height);
 506
 507   virtual blink::WebGLId createQueryEXT();
 508   virtual void deleteQueryEXT(blink::WebGLId query);
 509   virtual blink::WGC3Dboolean isQueryEXT(blink::WGC3Duint query);
 510   virtual void beginQueryEXT(blink::WGC3Denum target, blink::WebGLId query);
 511   virtual void endQueryEXT(blink::WGC3Denum target);
 512   virtual void getQueryivEXT(blink::WGC3Denum target,
 513                              blink::WGC3Denum pname,
 514                              blink::WGC3Dint* params);
 515   virtual void getQueryObjectuivEXT(blink::WebGLId query,
 516                                     blink::WGC3Denum pname,
 517                                     blink::WGC3Duint* params);
 518
 519   void copyTextureCHROMIUM(blink::WGC3Denum target,
 520                            blink::WebGLId source_id,
 521                            blink::WebGLId dest_id,
 522                            blink::WGC3Denum internal_format,
 523                            blink::WGC3Denum dest_type) override;
 524
 525   void copySubTextureCHROMIUM(blink::WGC3Denum target,
 526                               blink::WebGLId source_id,
 527                               blink::WebGLId dest_id,
 528                               blink::WGC3Dint xoffset,
 529                               blink::WGC3Dint yoffset) override;
 530
 531   virtual void bindUniformLocationCHROMIUM(blink::WebGLId program,
 532                                            blink::WGC3Dint location,
 533                                            const blink::WGC3Dchar* uniform);
 534
 535   virtual void shallowFlushCHROMIUM();
 536   virtual void shallowFinishCHROMIUM();
 537
 538   virtual void genMailboxCHROMIUM(blink::WGC3Dbyte* mailbox);
 539   virtual void produceTextureCHROMIUM(blink::WGC3Denum target,
 540                                       const blink::WGC3Dbyte* mailbox);
 541   virtual void produceTextureDirectCHROMIUM(blink::WebGLId texture,
 542                                             blink::WGC3Denum target,
 543                                             const blink::WGC3Dbyte* mailbox);
 544   virtual void consumeTextureCHROMIUM(blink::WGC3Denum target,
 545                                       const blink::WGC3Dbyte* mailbox);
 546   virtual blink::WebGLId createAndConsumeTextureCHROMIUM(
 547       blink::WGC3Denum target,
 548       const blink::WGC3Dbyte* mailbox);
 549
 550   virtual void genValuebuffersCHROMIUM(blink::WGC3Dsizei count,
 551                                        blink::WebGLId* ids);
 552   virtual blink::WebGLId createValuebufferCHROMIUM();
 553   virtual void deleteValuebuffersCHROMIUM(blink::WGC3Dsizei count,
 554                                           blink::WebGLId* ids);
 555   virtual void deleteValuebufferCHROMIUM(blink::WebGLId);
 556   virtual void bindValuebufferCHROMIUM(blink::WGC3Denum target,
 557                                        blink::WebGLId valuebuffer);
 558   virtual blink::WGC3Dboolean isValuebufferCHROMIUM(
 559       blink::WebGLId renderbuffer);
 560   virtual void subscribeValueCHROMIUM(blink::WGC3Denum target,
 561                                       blink::WGC3Denum subscription);
 562   virtual void populateSubscribedValuesCHROMIUM(blink::WGC3Denum target);
 563   virtual void uniformValuebufferCHROMIUM(blink::WGC3Dint location,
 564                                           blink::WGC3Denum target,
 565                                           blink::WGC3Denum subscription);
 566   virtual void traceBeginCHROMIUM(const blink::WGC3Dchar* category_name,
 567                                   const blink::WGC3Dchar* trace_name);
 568   virtual void traceEndCHROMIUM();
 569
 570   virtual void insertEventMarkerEXT(const blink::WGC3Dchar* marker);
 571   virtual void pushGroupMarkerEXT(const blink::WGC3Dchar* marker);
 572   virtual void popGroupMarkerEXT();
 573
 574   // GL_OES_vertex_array_object
 575   virtual blink::WebGLId createVertexArrayOES();
 576   virtual void deleteVertexArrayOES(blink::WebGLId array);
 577   virtual blink::WGC3Dboolean isVertexArrayOES(blink::WebGLId array);
 578   virtual void bindVertexArrayOES(blink::WebGLId array);
 579
 580   virtual void bindTexImage2DCHROMIUM(blink::WGC3Denum target,
 581                                       blink::WGC3Dint image_id);
 582   virtual void releaseTexImage2DCHROMIUM(blink::WGC3Denum target,
 583                                          blink::WGC3Dint image_id);
 584
 585   virtual void* mapBufferCHROMIUM(blink::WGC3Denum target,
 586                                   blink::WGC3Denum access);
 587   virtual blink::WGC3Dboolean unmapBufferCHROMIUM(blink::WGC3Denum target);
 588
 589   // Async pixel transfer functions.
 590   virtual void asyncTexImage2DCHROMIUM(blink::WGC3Denum target,
 591                                        blink::WGC3Dint level,
 592                                        blink::WGC3Denum internalformat,
 593                                        blink::WGC3Dsizei width,
 594                                        blink::WGC3Dsizei height,
 595                                        blink::WGC3Dint border,
 596                                        blink::WGC3Denum format,
 597                                        blink::WGC3Denum type,
 598                                        const void* pixels);
 599   virtual void asyncTexSubImage2DCHROMIUM(blink::WGC3Denum target,
 600                                           blink::WGC3Dint level,
 601                                           blink::WGC3Dint xoffset,
 602                                           blink::WGC3Dint yoffset,
 603                                           blink::WGC3Dsizei width,
 604                                           blink::WGC3Dsizei height,
 605                                           blink::WGC3Denum format,
 606                                           blink::WGC3Denum type,
 607                                           const void* pixels);
 608   virtual void waitAsyncTexImage2DCHROMIUM(blink::WGC3Denum target);
 609
 610   // GL_EXT_draw_buffers
 611   virtual void drawBuffersEXT(blink::WGC3Dsizei n,
 612                               const blink::WGC3Denum* bufs);
 613
 614   // GL_ANGLE_instanced_arrays
 615   virtual void drawArraysInstancedANGLE(blink::WGC3Denum mode,
 616                                         blink::WGC3Dint first,
 617                                         blink::WGC3Dsizei count,
 618                                         blink::WGC3Dsizei primcount);
 619   virtual void drawElementsInstancedANGLE(blink::WGC3Denum mode,
 620                                           blink::WGC3Dsizei count,
 621                                           blink::WGC3Denum type,
 622                                           blink::WGC3Dintptr offset,
 623                                           blink::WGC3Dsizei primcount);
 624   virtual void vertexAttribDivisorANGLE(blink::WGC3Duint index,
 625                                         blink::WGC3Duint divisor);
 626
 627   // GL_CHROMIUM_gpu_memory_buffer_image
 628   virtual blink::WGC3Duint createGpuMemoryBufferImageCHROMIUM(
 629       blink::WGC3Dsizei width,
 630       blink::WGC3Dsizei height,
 631       blink::WGC3Denum internalformat,
 632       blink::WGC3Denum usage);
 633   virtual void destroyImageCHROMIUM(blink::WGC3Duint image_id);
 634
 635   // GL_EXT_multisampled_render_to_texture
 636   virtual void framebufferTexture2DMultisampleEXT(blink::WGC3Denum target,
 637                                                   blink::WGC3Denum attachment,
 638                                                   blink::WGC3Denum textarget,
 639                                                   blink::WebGLId texture,
 640                                                   blink::WGC3Dint level,
 641                                                   blink::WGC3Dsizei samples);
 642   virtual void renderbufferStorageMultisampleEXT(
 643       blink::WGC3Denum target,
 644       blink::WGC3Dsizei samples,
 645       blink::WGC3Denum internalformat,
 646       blink::WGC3Dsizei width,
 647       blink::WGC3Dsizei height);
 648
 649   // OpenGL ES 3.0 functions not represented by pre-existing extensions
 650   virtual void beginTransformFeedback(blink::WGC3Denum primitiveMode);
 651   virtual void bindBufferBase(blink::WGC3Denum target,
 652                               blink::WGC3Duint index,
 653                               blink::WGC3Duint buffer);
 654   virtual void bindBufferRange(blink::WGC3Denum target,
 655                                blink::WGC3Duint index,
 656                                blink::WGC3Duint buffer,
 657                                blink::WGC3Dintptr offset,
 658                                blink::WGC3Dsizeiptr size);
 659   virtual void bindSampler(blink::WGC3Duint unit, blink::WebGLId sampler);
 660   virtual void bindTransformFeedback(blink::WGC3Denum target,
 661                                      blink::WebGLId transformfeedback);
 662   virtual void clearBufferfi(blink::WGC3Denum buffer,
 663                              blink::WGC3Dint drawbuffer,
 664                              blink::WGC3Dfloat depth,
 665                              blink::WGC3Dint stencil);
 666   virtual void clearBufferfv(blink::WGC3Denum buffer,
 667                              blink::WGC3Dint drawbuffer,
 668                              const blink::WGC3Dfloat* value);
 669   virtual void clearBufferiv(blink::WGC3Denum buffer,
 670                              blink::WGC3Dint drawbuffer,
 671                              const blink::WGC3Dint* value);
 672   virtual void clearBufferuiv(blink::WGC3Denum buffer,
 673                               blink::WGC3Dint drawbuffer,
 674                               const blink::WGC3Duint* value);
 675   virtual blink::WGC3Denum clientWaitSync(blink::WGC3Dsync sync,
 676                                           blink::WGC3Dbitfield flags,
 677                                           blink::WGC3Duint64 timeout);
 678   //virtual void compressedTexImage3D(blink::WGC3Denum target,
 679   //                                  blink::WGC3Dint level,
 680   //                                  blink::WGC3Denum internalformat,
 681   //                                  blink::WGC3Dsizei width,
 682   //                                  blink::WGC3Dsizei height,
 683   //                                  blink::WGC3Dsizei depth,
 684   //                                  blink::WGC3Dint border,
 685   //                                  blink::WGC3Dsizei imageSize,
 686   //                                  const void *data);
 687   //virtual void compressedTexSubImage3D(blink::WGC3Denum target,
 688   //                                     blink::WGC3Dint level,
 689   //                                     blink::WGC3Dint xoffset,
 690   //                                     blink::WGC3Dint yoffset,
 691   //                                     blink::WGC3Dint zoffset,
 692   //                                     blink::WGC3Dsizei width,
 693   //                                     blink::WGC3Dsizei height,
 694   //                                     blink::WGC3Dsizei depth,
 695   //                                     blink::WGC3Denum format,
 696   //                                     blink::WGC3Dsizei imageSize,
 697   //                                     const void *data);
 698   virtual void copyBufferSubData(blink::WGC3Denum readTarget,
 699                                  blink::WGC3Denum writeTarget,
 700                                  blink::WGC3Dintptr readOffset,
 701                                  blink::WGC3Dintptr writeOffset,
 702                                  blink::WGC3Dsizeiptr size);
 703   virtual void copyTexSubImage3D(blink::WGC3Denum target,
 704                                  blink::WGC3Dint level,
 705                                  blink::WGC3Dint xoffset,
 706                                  blink::WGC3Dint yoffset,
 707                                  blink::WGC3Dint zoffset,
 708                                  blink::WGC3Dint x,
 709                                  blink::WGC3Dint y,
 710                                  blink::WGC3Dsizei width,
 711                                  blink::WGC3Dsizei height);
 712   virtual blink::WebGLId createSampler();
 713   virtual blink::WebGLId createTransformFeedback();
 714   virtual void deleteSampler(blink::WebGLId sampler);
 715   virtual void deleteSync(blink::WGC3Dsync sync);
 716   virtual void deleteTransformFeedback(blink::WebGLId transformfeedback);
 717   virtual void drawRangeElements(blink::WGC3Denum mode,
 718                                  blink::WGC3Duint start,
 719                                  blink::WGC3Duint end,
 720                                  blink::WGC3Dsizei count,
 721                                  blink::WGC3Denum type,
 722                                  blink::WGC3Dintptr offset);
 723   virtual void endTransformFeedback(void);
 724   virtual blink::WGC3Dsync fenceSync(blink::WGC3Denum condition,
 725                                      blink::WGC3Dbitfield flags);
 726   virtual void framebufferTextureLayer(blink::WGC3Denum target,
 727                                        blink::WGC3Denum attachment,
 728                                        blink::WGC3Duint texture,
 729                                        blink::WGC3Dint level,
 730                                        blink::WGC3Dint layer);
 731   virtual void getActiveUniformBlockName(blink::WGC3Duint program,
 732                                          blink::WGC3Duint uniformBlockIndex,
 733                                          blink::WGC3Dsizei bufSize,
 734                                          blink::WGC3Dsizei* length,
 735                                          blink::WGC3Dchar* uniformBlockName);
 736   virtual void getActiveUniformBlockiv(blink::WGC3Duint program,
 737                                        blink::WGC3Duint uniformBlockIndex,
 738                                        blink::WGC3Denum pname,
 739                                        blink::WGC3Dint* params);
 740   virtual void getActiveUniformsiv(blink::WGC3Duint program,
 741                                    blink::WGC3Dsizei uniformCount,
 742                                    const blink::WGC3Duint *uniformIndices,
 743                                    blink::WGC3Denum pname,
 744                                    blink::WGC3Dint *params);
 745   virtual blink::WGC3Dint getFragDataLocation(blink::WGC3Duint program,
 746                                               const blink::WGC3Dchar* name);
 747   virtual void getInternalformativ(blink::WGC3Denum target,
 748                                    blink::WGC3Denum internalformat,
 749                                    blink::WGC3Denum pname,
 750                                    blink::WGC3Dsizei bufSize,
 751                                    blink::WGC3Dint* params);
 752   virtual void getSamplerParameterfv(blink::WGC3Duint sampler,
 753                                      blink::WGC3Denum pname,
 754                                      blink::WGC3Dfloat* params);
 755   virtual void getSamplerParameteriv(blink::WGC3Duint sampler,
 756                                      blink::WGC3Denum pname,
 757                                      blink::WGC3Dint* params);
 758   virtual void getTransformFeedbackVarying(blink::WGC3Duint program,
 759                                            blink::WGC3Duint index,
 760                                            blink::WGC3Dsizei bufSize,
 761                                            blink::WGC3Dsizei *length,
 762                                            blink::WGC3Dsizei *size,
 763                                            blink::WGC3Denum *type,
 764                                            blink::WGC3Dchar *name);
 765   virtual blink::WGC3Duint getUniformBlockIndex(
 766       blink::WGC3Duint program, const blink::WGC3Dchar* uniformBlockName);
 767   virtual void getUniformIndices(blink::WGC3Duint program,
 768                                  blink::WGC3Dsizei uniformCount,
 769                                  const blink::WGC3Dchar *const*uniformNames,
 770                                  blink::WGC3Duint *uniformIndices);
 771   //virtual void getUniformuiv(blink::WGC3Duint program,
 772   //                           blink::WGC3Dint location,
 773   //                           blink::WGC3Duint *params);
 774   //virtual void getVertexAttribIiv(blink::WGC3Duint index,
 775   //                                blink::WGC3Denum pname,
 776   //                                blink::WGC3Dint *params);
 777   //virtual void getVertexAttribIuiv(blink::WGC3Duint index,
 778   //                                 blink::WGC3Denum pname,
 779   //                                 blink::WGC3Duint *params);
 780   virtual void invalidateFramebuffer(blink::WGC3Denum target,
 781                                      blink::WGC3Dsizei numAttachments,
 782                                      const blink::WGC3Denum* attachments);
 783   virtual void invalidateSubFramebuffer(blink::WGC3Denum target,
 784                                         blink::WGC3Dsizei numAttachments,
 785                                         const blink::WGC3Denum* attachments,
 786                                         blink::WGC3Dint x,
 787                                         blink::WGC3Dint y,
 788                                         blink::WGC3Dsizei width,
 789                                         blink::WGC3Dsizei height);
 790   virtual blink::WGC3Dboolean isSampler(blink::WebGLId sampler);
 791   virtual blink::WGC3Dboolean isSync(blink::WGC3Dsync sync);
 792   virtual blink::WGC3Dboolean isTransformFeedback(blink::WGC3Duint id);
 793   virtual void pauseTransformFeedback(void);
 794   //virtual void programParameteri(blink::WGC3Duint program,
 795   //                               blink::WGC3Denum pname,
 796   //                               blink::WGC3Dint value);
 797   virtual void readBuffer(blink::WGC3Denum src);
 798   virtual void resumeTransformFeedback(void);
 799   virtual void samplerParameterf(blink::WGC3Duint sampler,
 800                                  blink::WGC3Denum pname,
 801                                  blink::WGC3Dfloat param);
 802   virtual void samplerParameterfv(blink::WGC3Duint sampler,
 803                                   blink::WGC3Denum pname,
 804                                   const blink::WGC3Dfloat* param);
 805   virtual void samplerParameteri(blink::WGC3Duint sampler,
 806                                  blink::WGC3Denum pname,
 807                                  blink::WGC3Dint param);
 808   virtual void samplerParameteriv(blink::WGC3Duint sampler,
 809                                   blink::WGC3Denum pname,
 810                                   const blink::WGC3Dint* param);
 811   virtual void texImage3D(blink::WGC3Denum target,
 812                           blink::WGC3Dint level,
 813                           blink::WGC3Dint internalformat,
 814                           blink::WGC3Dsizei width,
 815                           blink::WGC3Dsizei height,
 816                           blink::WGC3Dsizei depth,
 817                           blink::WGC3Dint border,
 818                           blink::WGC3Denum format,
 819                           blink::WGC3Denum type,
 820                           const void* pixels);
 821   virtual void texStorage3D(blink::WGC3Denum target,
 822                             blink::WGC3Dsizei levels,
 823                             blink::WGC3Denum internalformat,
 824                             blink::WGC3Dsizei width,
 825                             blink::WGC3Dsizei height,
 826                             blink::WGC3Dsizei depth);
 827   virtual void texSubImage3D(blink::WGC3Denum target,
 828                              blink::WGC3Dint level,
 829                              blink::WGC3Dint xoffset,
 830                              blink::WGC3Dint yoffset,
 831                              blink::WGC3Dint zoffset,
 832                              blink::WGC3Dsizei width,
 833                              blink::WGC3Dsizei height,
 834                              blink::WGC3Dsizei depth,
 835                              blink::WGC3Denum format,
 836                              blink::WGC3Denum type,
 837                              const void* pixels);
 838   virtual void transformFeedbackVaryings(
 839       blink::WGC3Duint program,
 840       blink::WGC3Dsizei count,
 841       const blink::WGC3Dchar* const* varyings,
 842       blink::WGC3Denum bufferMode);
 843   virtual void uniform1ui(blink::WGC3Dint location, blink::WGC3Duint x);
 844   virtual void uniform1uiv(blink::WGC3Dint location,
 845                            blink::WGC3Dsizei count,
 846                            const blink::WGC3Duint* value);
 847   virtual void uniform2ui(blink::WGC3Dint location,
 848                           blink::WGC3Duint x,
 849                           blink::WGC3Duint y);
 850   virtual void uniform2uiv(blink::WGC3Dint location,
 851                            blink::WGC3Dsizei count,
 852                            const blink::WGC3Duint* value);
 853   virtual void uniform3ui(blink::WGC3Dint location,
 854                           blink::WGC3Duint x,
 855                           blink::WGC3Duint y,
 856                           blink::WGC3Duint z);
 857   virtual void uniform3uiv(blink::WGC3Dint location,
 858                            blink::WGC3Dsizei count,
 859                            const blink::WGC3Duint* value);
 860   virtual void uniform4ui(blink::WGC3Dint location,
 861                           blink::WGC3Duint x,
 862                           blink::WGC3Duint y,
 863                           blink::WGC3Duint z,
 864                           blink::WGC3Duint w);
 865   virtual void uniform4uiv(blink::WGC3Dint location,
 866                            blink::WGC3Dsizei count,
 867                            const blink::WGC3Duint* value);
 868   virtual void uniformBlockBinding(blink::WGC3Duint program,
 869                                    blink::WGC3Duint uniformBlockIndex,
 870                                    blink::WGC3Duint uniformBlockBinding);
 871   virtual void uniformMatrix2x3fv(blink::WGC3Dint location,
 872                                   blink::WGC3Dsizei count,
 873                                   blink::WGC3Dboolean transpose,
 874                                   const blink::WGC3Dfloat* value);
 875   virtual void uniformMatrix2x4fv(blink::WGC3Dint location,
 876                                   blink::WGC3Dsizei count,
 877                                   blink::WGC3Dboolean transpose,
 878                                   const blink::WGC3Dfloat* value);
 879   virtual void uniformMatrix3x2fv(blink::WGC3Dint location,
 880                                   blink::WGC3Dsizei count,
 881                                   blink::WGC3Dboolean transpose,
 882                                   const blink::WGC3Dfloat* value);
 883   virtual void uniformMatrix3x4fv(blink::WGC3Dint location,
 884                                   blink::WGC3Dsizei count,
 885                                   blink::WGC3Dboolean transpose,
 886                                   const blink::WGC3Dfloat* value);
 887   virtual void uniformMatrix4x2fv(blink::WGC3Dint location,
 888                                   blink::WGC3Dsizei count,
 889                                   blink::WGC3Dboolean transpose,
 890                                   const blink::WGC3Dfloat* value);
 891   virtual void uniformMatrix4x3fv(blink::WGC3Dint location,
 892                                   blink::WGC3Dsizei count,
 893                                   blink::WGC3Dboolean transpose,
 894                                   const blink::WGC3Dfloat* value);
 895   virtual void vertexAttribI4i(blink::WGC3Duint index,
 896                                blink::WGC3Dint x,
 897                                blink::WGC3Dint y,
 898                                blink::WGC3Dint z,
 899                                blink::WGC3Dint w);
 900   virtual void vertexAttribI4iv(blink::WGC3Duint index,
 901                                 const blink::WGC3Dint* v);
 902   virtual void vertexAttribI4ui(blink::WGC3Duint index,
 903                                 blink::WGC3Duint x,
 904                                 blink::WGC3Duint y,
 905                                 blink::WGC3Duint z,
 906                                 blink::WGC3Duint w);
 907   virtual void vertexAttribI4uiv(blink::WGC3Duint index,
 908                                  const blink::WGC3Duint* v);
 909   virtual void vertexAttribIPointer(blink::WGC3Duint index,
 910                                     blink::WGC3Dint size,
 911                                     blink::WGC3Denum type,
 912                                     blink::WGC3Dsizei stride,
 913                                     blink::WGC3Dintptr pointer);
 914   virtual void waitSync(blink::WGC3Dsync sync,
 915                         blink::WGC3Dbitfield flags,
 916                         blink::WGC3Duint64 timeout);
 917
 918   virtual GrGLInterface* createGrGLInterface();
 919
 920   ::gpu::gles2::GLES2Interface* GetGLInterface() {
 921     return gl_;
 922   }
 923
 924   // Convert WebGL context creation attributes into command buffer / EGL size
 925   // requests.
 926   static void ConvertAttributes(
 927       const blink::WebGraphicsContext3D::Attributes& attributes,
 928       ::gpu::gles2::ContextCreationAttribHelper* output_attribs);
 929
 930  protected:
 931   friend class WebGraphicsContext3DErrorMessageCallback;
 932
 933   WebGraphicsContext3DImpl();
 934
 935   ::gpu::gles2::GLES2ImplementationErrorMessageCallback*
 936       getErrorMessageCallback();
 937   virtual void OnErrorMessage(const std::string& message, int id);
 938
 939   void setGLInterface(::gpu::gles2::GLES2Interface* gl) {
 940     gl_ = gl;
 941   }
 942
 943   bool initialized_;
 944   bool initialize_failed_;
 945
 946   WebGraphicsContext3D::WebGraphicsContextLostCallback* context_lost_callback_;
 947   blink::WGC3Denum context_lost_reason_;
 948
 949   WebGraphicsContext3D::WebGraphicsErrorMessageCallback*
 950       error_message_callback_;
 951   scoped_ptr<WebGraphicsContext3DErrorMessageCallback>
 952       client_error_message_callback_;
 953
 954   // Errors raised by synthesizeGLError().
 955   std::vector<blink::WGC3Denum> synthetic_errors_;
 956
 957   ::gpu::gles2::GLES2Interface* gl_;
 958   bool lose_context_when_out_of_memory_;
 959   uint32_t flush_id_;
 960 };
 961
 962 }  // namespace gpu_blink
 963
 964 #endif  // GPU_BLINK_WEBGRAPHICSCONTEXT3D_IMPL_H_