Home | History | Annotate | Download | only in gpu 
      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
      6 
      7 #include <GLES2/gl2.h>
      8 #ifndef GL_GLEXT_PROTOTYPES
      9 #define GL_GLEXT_PROTOTYPES 1
     10 #endif
     11 #include <GLES2/gl2ext.h>
     12 #include <GLES2/gl2extchromium.h>
     13 
     14 #include <string>
     15 
     16 #include "base/bind.h"
     17 #include "base/bind_helpers.h"
     18 #include "base/callback.h"
     19 #include "base/lazy_instance.h"
     20 #include "base/logging.h"
     21 #include "gpu/command_buffer/client/gl_in_process_context.h"
     22 #include "gpu/command_buffer/client/gles2_implementation.h"
     23 #include "gpu/command_buffer/client/gles2_lib.h"
     24 #include "ui/gfx/size.h"
     25 #include "ui/gl/gl_surface.h"
     26 #include "webkit/common/gpu/gl_bindings_skia_cmd_buffer.h"
     27 
     28 using gpu::gles2::GLES2Implementation;
     29 using gpu::GLInProcessContext;
     30 
     31 namespace webkit {
     32 namespace gpu {
     33 
     34 namespace {
     35 
     36 const int32 kCommandBufferSize = 1024 * 1024;
     37 // TODO(kbr): make the transfer buffer size configurable via context
     38 // creation attributes.
     39 const size_t kStartTransferBufferSize = 4 * 1024 * 1024;
     40 const size_t kMinTransferBufferSize = 1 * 256 * 1024;
     41 const size_t kMaxTransferBufferSize = 16 * 1024 * 1024;
     42 
     43 void OnSignalSyncPoint(
     44     WebKit::WebGraphicsContext3D::WebGraphicsSyncPointCallback* callback) {
     45   callback->onSyncPointReached();
     46 }
     47 
     48 // Singleton used to initialize and terminate the gles2 library.
     49 class GLES2Initializer {
     50  public:
     51   GLES2Initializer() {
     52     ::gles2::Initialize();
     53   }
     54 
     55   ~GLES2Initializer() {
     56     ::gles2::Terminate();
     57   }
     58 
     59  private:
     60   DISALLOW_COPY_AND_ASSIGN(GLES2Initializer);
     61 };
     62 
     63 static base::LazyInstance<GLES2Initializer> g_gles2_initializer =
     64     LAZY_INSTANCE_INITIALIZER;
     65 
     66 }  // namespace anonymous
     67 
     68 // static
     69 scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>
     70 WebGraphicsContext3DInProcessCommandBufferImpl::CreateViewContext(
     71     const WebKit::WebGraphicsContext3D::Attributes& attributes,
     72     gfx::AcceleratedWidget window) {
     73   scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context;
     74   if (gfx::GLSurface::InitializeOneOff()) {
     75     context.reset(new WebGraphicsContext3DInProcessCommandBufferImpl(
     76       scoped_ptr< ::gpu::GLInProcessContext>(), attributes, false, window));
     77   }
     78   return context.Pass();
     79 }
     80 
     81 // static
     82 scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>
     83 WebGraphicsContext3DInProcessCommandBufferImpl::CreateOffscreenContext(
     84     const WebKit::WebGraphicsContext3D::Attributes& attributes) {
     85   return make_scoped_ptr(new WebGraphicsContext3DInProcessCommandBufferImpl(
     86                              scoped_ptr< ::gpu::GLInProcessContext>(),
     87                              attributes,
     88                              true,
     89                              gfx::kNullAcceleratedWidget))
     90       .Pass();
     91 }
     92 
     93 scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>
     94 WebGraphicsContext3DInProcessCommandBufferImpl::WrapContext(
     95     scoped_ptr< ::gpu::GLInProcessContext> context,
     96     const WebKit::WebGraphicsContext3D::Attributes& attributes) {
     97   return make_scoped_ptr(
     98       new WebGraphicsContext3DInProcessCommandBufferImpl(
     99           context.Pass(),
    100           attributes,
    101           true /* is_offscreen. Not used. */,
    102           gfx::kNullAcceleratedWidget /* window. Not used. */))
    103       .Pass();
    104 }
    105 
    106 WebGraphicsContext3DInProcessCommandBufferImpl::
    107     WebGraphicsContext3DInProcessCommandBufferImpl(
    108         scoped_ptr< ::gpu::GLInProcessContext> context,
    109         const WebKit::WebGraphicsContext3D::Attributes& attributes,
    110         bool is_offscreen,
    111         gfx::AcceleratedWidget window)
    112     : is_offscreen_(is_offscreen),
    113       window_(window),
    114       initialized_(false),
    115       initialize_failed_(false),
    116       context_(context.Pass()),
    117       gl_(NULL),
    118       context_lost_callback_(NULL),
    119       context_lost_reason_(GL_NO_ERROR),
    120       attributes_(attributes),
    121       cached_width_(0),
    122       cached_height_(0) {
    123 }
    124 
    125 WebGraphicsContext3DInProcessCommandBufferImpl::
    126     ~WebGraphicsContext3DInProcessCommandBufferImpl() {
    127 }
    128 
    129 // static
    130 void WebGraphicsContext3DInProcessCommandBufferImpl::ConvertAttributes(
    131     const WebKit::WebGraphicsContext3D::Attributes& attributes,
    132     ::gpu::GLInProcessContextAttribs* output_attribs) {
    133   output_attribs->alpha_size = attributes.alpha ? 8 : 0;
    134   output_attribs->depth_size = attributes.depth ? 24 : 0;
    135   output_attribs->stencil_size = attributes.stencil ? 8 : 0;
    136   output_attribs->samples = attributes.antialias ? 4 : 0;
    137   output_attribs->sample_buffers = attributes.antialias ? 1 : 0;
    138 }
    139 
    140 bool WebGraphicsContext3DInProcessCommandBufferImpl::MaybeInitializeGL() {
    141   if (initialized_)
    142     return true;
    143 
    144   if (initialize_failed_)
    145     return false;
    146 
    147   // Ensure the gles2 library is initialized first in a thread safe way.
    148   g_gles2_initializer.Get();
    149 
    150   if (!context_) {
    151     const char* preferred_extensions = "*";
    152 
    153     // TODO(kbr): More work will be needed in this implementation to
    154     // properly support GPU switching. Like in the out-of-process
    155     // command buffer implementation, all previously created contexts
    156     // will need to be lost either when the first context requesting the
    157     // discrete GPU is created, or the last one is destroyed.
    158     gfx::GpuPreference gpu_preference = gfx::PreferDiscreteGpu;
    159 
    160     ::gpu::GLInProcessContextAttribs attrib_struct;
    161     ConvertAttributes(attributes_, &attrib_struct),
    162 
    163     context_.reset(GLInProcessContext::CreateContext(
    164         is_offscreen_,
    165         window_,
    166         gfx::Size(1, 1),
    167         attributes_.shareResources,
    168         preferred_extensions,
    169         attrib_struct,
    170         gpu_preference));
    171   }
    172 
    173   if (context_) {
    174     base::Closure context_lost_callback = base::Bind(
    175         &WebGraphicsContext3DInProcessCommandBufferImpl::OnContextLost,
    176         base::Unretained(this));
    177     context_->SetContextLostCallback(context_lost_callback);
    178   } else {
    179     initialize_failed_ = true;
    180     return false;
    181   }
    182 
    183   gl_ = context_->GetImplementation();
    184 
    185   if (gl_ && attributes_.noExtensions)
    186     gl_->EnableFeatureCHROMIUM("webgl_enable_glsl_webgl_validation");
    187 
    188   // Set attributes_ from created offscreen context.
    189   {
    190     GLint alpha_bits = 0;
    191     getIntegerv(GL_ALPHA_BITS, &alpha_bits);
    192     attributes_.alpha = alpha_bits > 0;
    193     GLint depth_bits = 0;
    194     getIntegerv(GL_DEPTH_BITS, &depth_bits);
    195     attributes_.depth = depth_bits > 0;
    196     GLint stencil_bits = 0;
    197     getIntegerv(GL_STENCIL_BITS, &stencil_bits);
    198     attributes_.stencil = stencil_bits > 0;
    199     GLint sample_buffers = 0;
    200     getIntegerv(GL_SAMPLE_BUFFERS, &sample_buffers);
    201     attributes_.antialias = sample_buffers > 0;
    202   }
    203 
    204   initialized_ = true;
    205   return true;
    206 }
    207 
    208 bool WebGraphicsContext3DInProcessCommandBufferImpl::makeContextCurrent() {
    209   if (!MaybeInitializeGL())
    210     return false;
    211   ::gles2::SetGLContext(gl_);
    212   return context_ && !isContextLost();
    213 }
    214 
    215 void WebGraphicsContext3DInProcessCommandBufferImpl::ClearContext() {
    216   // NOTE: Comment in the line below to check for code that is not calling
    217   // eglMakeCurrent where appropriate. The issue is code using
    218   // WebGraphicsContext3D does not need to call makeContextCurrent. Code using
    219   // direct OpenGL bindings needs to call the appropriate form of
    220   // eglMakeCurrent. If it doesn't it will be issuing commands on the wrong
    221   // context. Uncommenting the line below clears the current context so that
    222   // any code not calling eglMakeCurrent in the appropriate place should crash.
    223   // This is not a perfect test but generally code that used the direct OpenGL
    224   // bindings should not be mixed with code that uses WebGraphicsContext3D.
    225   //
    226   // GLInProcessContext::MakeCurrent(NULL);
    227 }
    228 
    229 int WebGraphicsContext3DInProcessCommandBufferImpl::width() {
    230   return cached_width_;
    231 }
    232 
    233 int WebGraphicsContext3DInProcessCommandBufferImpl::height() {
    234   return cached_height_;
    235 }
    236 
    237 void WebGraphicsContext3DInProcessCommandBufferImpl::prepareTexture() {
    238   if (!isContextLost()) {
    239     gl_->SwapBuffers();
    240     gl_->ShallowFlushCHROMIUM();
    241   }
    242 }
    243 
    244 void WebGraphicsContext3DInProcessCommandBufferImpl::postSubBufferCHROMIUM(
    245     int x, int y, int width, int height) {
    246   gl_->PostSubBufferCHROMIUM(x, y, width, height);
    247 }
    248 
    249 void WebGraphicsContext3DInProcessCommandBufferImpl::reshape(
    250     int width, int height) {
    251   reshapeWithScaleFactor(width, height, 1.0f);
    252 }
    253 
    254 void WebGraphicsContext3DInProcessCommandBufferImpl::reshapeWithScaleFactor(
    255     int width, int height, float scale_factor) {
    256   cached_width_ = width;
    257   cached_height_ = height;
    258 
    259   // TODO(gmam): See if we can comment this in.
    260   // ClearContext();
    261 
    262   gl_->ResizeCHROMIUM(width, height, scale_factor);
    263 }
    264 
    265 void WebGraphicsContext3DInProcessCommandBufferImpl::synthesizeGLError(
    266     WGC3Denum error) {
    267   if (std::find(synthetic_errors_.begin(), synthetic_errors_.end(), error) ==
    268       synthetic_errors_.end()) {
    269     synthetic_errors_.push_back(error);
    270   }
    271 }
    272 
    273 void* WebGraphicsContext3DInProcessCommandBufferImpl::mapBufferSubDataCHROMIUM(
    274     WGC3Denum target,
    275     WGC3Dintptr offset,
    276     WGC3Dsizeiptr size,
    277     WGC3Denum access) {
    278   ClearContext();
    279   return gl_->MapBufferSubDataCHROMIUM(target, offset, size, access);
    280 }
    281 
    282 void WebGraphicsContext3DInProcessCommandBufferImpl::unmapBufferSubDataCHROMIUM(
    283     const void* mem) {
    284   ClearContext();
    285   return gl_->UnmapBufferSubDataCHROMIUM(mem);
    286 }
    287 
    288 void* WebGraphicsContext3DInProcessCommandBufferImpl::mapTexSubImage2DCHROMIUM(
    289     WGC3Denum target,
    290     WGC3Dint level,
    291     WGC3Dint xoffset,
    292     WGC3Dint yoffset,
    293     WGC3Dsizei width,
    294     WGC3Dsizei height,
    295     WGC3Denum format,
    296     WGC3Denum type,
    297     WGC3Denum access) {
    298   ClearContext();
    299   return gl_->MapTexSubImage2DCHROMIUM(
    300       target, level, xoffset, yoffset, width, height, format, type, access);
    301 }
    302 
    303 void WebGraphicsContext3DInProcessCommandBufferImpl::unmapTexSubImage2DCHROMIUM(
    304     const void* mem) {
    305   ClearContext();
    306   gl_->UnmapTexSubImage2DCHROMIUM(mem);
    307 }
    308 
    309 void WebGraphicsContext3DInProcessCommandBufferImpl::setVisibilityCHROMIUM(
    310     bool visible) {
    311 }
    312 
    313 void WebGraphicsContext3DInProcessCommandBufferImpl::
    314     setMemoryAllocationChangedCallbackCHROMIUM(
    315         WebGraphicsMemoryAllocationChangedCallbackCHROMIUM* callback) {
    316 }
    317 
    318 void WebGraphicsContext3DInProcessCommandBufferImpl::discardFramebufferEXT(
    319     WGC3Denum target, WGC3Dsizei numAttachments, const WGC3Denum* attachments) {
    320   gl_->DiscardFramebufferEXT(target, numAttachments, attachments);
    321 }
    322 
    323 void WebGraphicsContext3DInProcessCommandBufferImpl::
    324     discardBackbufferCHROMIUM() {
    325 }
    326 
    327 void WebGraphicsContext3DInProcessCommandBufferImpl::
    328     ensureBackbufferCHROMIUM() {
    329 }
    330 
    331 void WebGraphicsContext3DInProcessCommandBufferImpl::
    332     copyTextureToParentTextureCHROMIUM(WebGLId texture, WebGLId parentTexture) {
    333   NOTIMPLEMENTED();
    334 }
    335 
    336 void WebGraphicsContext3DInProcessCommandBufferImpl::
    337     rateLimitOffscreenContextCHROMIUM() {
    338   // TODO(gmam): See if we can comment this in.
    339   // ClearContext();
    340   gl_->RateLimitOffscreenContextCHROMIUM();
    341 }
    342 
    343 WebKit::WebString WebGraphicsContext3DInProcessCommandBufferImpl::
    344     getRequestableExtensionsCHROMIUM() {
    345   // TODO(gmam): See if we can comment this in.
    346   // ClearContext();
    347   return WebKit::WebString::fromUTF8(
    348       gl_->GetRequestableExtensionsCHROMIUM());
    349 }
    350 
    351 void WebGraphicsContext3DInProcessCommandBufferImpl::requestExtensionCHROMIUM(
    352     const char* extension) {
    353   // TODO(gmam): See if we can comment this in.
    354   // ClearContext();
    355   gl_->RequestExtensionCHROMIUM(extension);
    356 }
    357 
    358 void WebGraphicsContext3DInProcessCommandBufferImpl::blitFramebufferCHROMIUM(
    359     WGC3Dint srcX0, WGC3Dint srcY0, WGC3Dint srcX1, WGC3Dint srcY1,
    360     WGC3Dint dstX0, WGC3Dint dstY0, WGC3Dint dstX1, WGC3Dint dstY1,
    361     WGC3Dbitfield mask, WGC3Denum filter) {
    362   ClearContext();
    363   gl_->BlitFramebufferEXT(
    364       srcX0, srcY0, srcX1, srcY1,
    365       dstX0, dstY0, dstX1, dstY1,
    366       mask, filter);
    367 }
    368 
    369 void WebGraphicsContext3DInProcessCommandBufferImpl::
    370     renderbufferStorageMultisampleCHROMIUM(
    371         WGC3Denum target, WGC3Dsizei samples, WGC3Denum internalformat,
    372         WGC3Dsizei width, WGC3Dsizei height) {
    373   ClearContext();
    374   gl_->RenderbufferStorageMultisampleEXT(
    375       target, samples, internalformat, width, height);
    376 }
    377 
    378 // Helper macros to reduce the amount of code.
    379 
    380 #define DELEGATE_TO_GL(name, glname)                                    \
    381 void WebGraphicsContext3DInProcessCommandBufferImpl::name() {           \
    382   ClearContext();                                                       \
    383   gl_->glname();                                                        \
    384 }
    385 
    386 #define DELEGATE_TO_GL_1(name, glname, t1)                              \
    387 void WebGraphicsContext3DInProcessCommandBufferImpl::name(t1 a1) {      \
    388   ClearContext();                                                       \
    389   gl_->glname(a1);                                                      \
    390 }
    391 
    392 #define DELEGATE_TO_GL_1R(name, glname, t1, rt)                         \
    393 rt WebGraphicsContext3DInProcessCommandBufferImpl::name(t1 a1) {        \
    394   ClearContext();                                                       \
    395   return gl_->glname(a1);                                               \
    396 }
    397 
    398 #define DELEGATE_TO_GL_1RB(name, glname, t1, rt)                        \
    399 rt WebGraphicsContext3DInProcessCommandBufferImpl::name(t1 a1) {        \
    400   ClearContext();                                                       \
    401   return gl_->glname(a1) ? true : false;                                \
    402 }
    403 
    404 #define DELEGATE_TO_GL_2(name, glname, t1, t2)                          \
    405 void WebGraphicsContext3DInProcessCommandBufferImpl::name(              \
    406     t1 a1, t2 a2) {                                                     \
    407   ClearContext();                                                       \
    408   gl_->glname(a1, a2);                                                  \
    409 }
    410 
    411 #define DELEGATE_TO_GL_2R(name, glname, t1, t2, rt)                     \
    412 rt WebGraphicsContext3DInProcessCommandBufferImpl::name(t1 a1, t2 a2) { \
    413   ClearContext();                                                       \
    414   return gl_->glname(a1, a2);                                           \
    415 }
    416 
    417 #define DELEGATE_TO_GL_3(name, glname, t1, t2, t3)                      \
    418 void WebGraphicsContext3DInProcessCommandBufferImpl::name(              \
    419     t1 a1, t2 a2, t3 a3) {                                              \
    420   ClearContext();                                                       \
    421   gl_->glname(a1, a2, a3);                                              \
    422 }
    423 
    424 #define DELEGATE_TO_GL_3R(name, glname, t1, t2, t3, rt)                 \
    425 rt WebGraphicsContext3DInProcessCommandBufferImpl::name(                \
    426     t1 a1, t2 a2, t3 a3) {                                              \
    427   ClearContext();                                                       \
    428   return gl_->glname(a1, a2, a3);                                       \
    429 }
    430 
    431 #define DELEGATE_TO_GL_4(name, glname, t1, t2, t3, t4)                  \
    432 void WebGraphicsContext3DInProcessCommandBufferImpl::name(              \
    433     t1 a1, t2 a2, t3 a3, t4 a4) {                                       \
    434   ClearContext();                                                       \
    435   gl_->glname(a1, a2, a3, a4);                                          \
    436 }
    437 
    438 #define DELEGATE_TO_GL_5(name, glname, t1, t2, t3, t4, t5)              \
    439 void WebGraphicsContext3DInProcessCommandBufferImpl::name(              \
    440     t1 a1, t2 a2, t3 a3, t4 a4, t5 a5) {                                \
    441   ClearContext();                                                       \
    442   gl_->glname(a1, a2, a3, a4, a5);                                      \
    443 }
    444 
    445 #define DELEGATE_TO_GL_6(name, glname, t1, t2, t3, t4, t5, t6)          \
    446 void WebGraphicsContext3DInProcessCommandBufferImpl::name(              \
    447     t1 a1, t2 a2, t3 a3, t4 a4, t5 a5, t6 a6) {                         \
    448   ClearContext();                                                       \
    449   gl_->glname(a1, a2, a3, a4, a5, a6);                                  \
    450 }
    451 
    452 #define DELEGATE_TO_GL_7(name, glname, t1, t2, t3, t4, t5, t6, t7)      \
    453 void WebGraphicsContext3DInProcessCommandBufferImpl::name(              \
    454     t1 a1, t2 a2, t3 a3, t4 a4, t5 a5, t6 a6, t7 a7) {                  \
    455   ClearContext();                                                       \
    456   gl_->glname(a1, a2, a3, a4, a5, a6, a7);                              \
    457 }
    458 
    459 #define DELEGATE_TO_GL_8(name, glname, t1, t2, t3, t4, t5, t6, t7, t8)  \
    460 void WebGraphicsContext3DInProcessCommandBufferImpl::name(              \
    461     t1 a1, t2 a2, t3 a3, t4 a4, t5 a5, t6 a6, t7 a7, t8 a8) {           \
    462   ClearContext();                                                       \
    463   gl_->glname(a1, a2, a3, a4, a5, a6, a7, a8);                          \
    464 }
    465 
    466 #define DELEGATE_TO_GL_9(name, glname, t1, t2, t3, t4, t5, t6, t7, t8, t9) \
    467 void WebGraphicsContext3DInProcessCommandBufferImpl::name(              \
    468     t1 a1, t2 a2, t3 a3, t4 a4, t5 a5, t6 a6, t7 a7, t8 a8, t9 a9) {    \
    469   ClearContext();                                                       \
    470   gl_->glname(a1, a2, a3, a4, a5, a6, a7, a8, a9);                      \
    471 }
    472 
    473 DELEGATE_TO_GL_1(activeTexture, ActiveTexture, WGC3Denum)
    474 
    475 DELEGATE_TO_GL_2(attachShader, AttachShader, WebGLId, WebGLId)
    476 
    477 DELEGATE_TO_GL_3(bindAttribLocation, BindAttribLocation, WebGLId,
    478                  WGC3Duint, const WGC3Dchar*)
    479 
    480 DELEGATE_TO_GL_2(bindBuffer, BindBuffer, WGC3Denum, WebGLId)
    481 
    482 void WebGraphicsContext3DInProcessCommandBufferImpl::bindFramebuffer(
    483     WGC3Denum target,
    484     WebGLId framebuffer) {
    485   ClearContext();
    486   gl_->BindFramebuffer(target, framebuffer);
    487 }
    488 
    489 DELEGATE_TO_GL_2(bindRenderbuffer, BindRenderbuffer, WGC3Denum, WebGLId)
    490 
    491 DELEGATE_TO_GL_2(bindTexture, BindTexture, WGC3Denum, WebGLId)
    492 
    493 DELEGATE_TO_GL_4(blendColor, BlendColor,
    494                  WGC3Dclampf, WGC3Dclampf, WGC3Dclampf, WGC3Dclampf)
    495 
    496 DELEGATE_TO_GL_1(blendEquation, BlendEquation, WGC3Denum)
    497 
    498 DELEGATE_TO_GL_2(blendEquationSeparate, BlendEquationSeparate,
    499                  WGC3Denum, WGC3Denum)
    500 
    501 DELEGATE_TO_GL_2(blendFunc, BlendFunc, WGC3Denum, WGC3Denum)
    502 
    503 DELEGATE_TO_GL_4(blendFuncSeparate, BlendFuncSeparate,
    504                  WGC3Denum, WGC3Denum, WGC3Denum, WGC3Denum)
    505 
    506 DELEGATE_TO_GL_4(bufferData, BufferData,
    507                  WGC3Denum, WGC3Dsizeiptr, const void*, WGC3Denum)
    508 
    509 DELEGATE_TO_GL_4(bufferSubData, BufferSubData,
    510                  WGC3Denum, WGC3Dintptr, WGC3Dsizeiptr, const void*)
    511 
    512 DELEGATE_TO_GL_1R(checkFramebufferStatus, CheckFramebufferStatus,
    513                   WGC3Denum, WGC3Denum)
    514 
    515 DELEGATE_TO_GL_1(clear, Clear, WGC3Dbitfield)
    516 
    517 DELEGATE_TO_GL_4(clearColor, ClearColor,
    518                  WGC3Dclampf, WGC3Dclampf, WGC3Dclampf, WGC3Dclampf)
    519 
    520 DELEGATE_TO_GL_1(clearDepth, ClearDepthf, WGC3Dclampf)
    521 
    522 DELEGATE_TO_GL_1(clearStencil, ClearStencil, WGC3Dint)
    523 
    524 DELEGATE_TO_GL_4(colorMask, ColorMask,
    525                  WGC3Dboolean, WGC3Dboolean, WGC3Dboolean, WGC3Dboolean)
    526 
    527 DELEGATE_TO_GL_1(compileShader, CompileShader, WebGLId)
    528 
    529 DELEGATE_TO_GL_8(compressedTexImage2D, CompressedTexImage2D,
    530                  WGC3Denum, WGC3Dint, WGC3Denum, WGC3Dint, WGC3Dint,
    531                  WGC3Dsizei, WGC3Dsizei, const void*)
    532 
    533 DELEGATE_TO_GL_9(compressedTexSubImage2D, CompressedTexSubImage2D,
    534                  WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint,
    535                  WGC3Denum, WGC3Dsizei, const void*)
    536 
    537 DELEGATE_TO_GL_8(copyTexImage2D, CopyTexImage2D,
    538                  WGC3Denum, WGC3Dint, WGC3Denum, WGC3Dint, WGC3Dint,
    539                  WGC3Dsizei, WGC3Dsizei, WGC3Dint)
    540 
    541 DELEGATE_TO_GL_8(copyTexSubImage2D, CopyTexSubImage2D,
    542                  WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint,
    543                  WGC3Dsizei, WGC3Dsizei)
    544 
    545 DELEGATE_TO_GL_1(cullFace, CullFace, WGC3Denum)
    546 
    547 DELEGATE_TO_GL_1(depthFunc, DepthFunc, WGC3Denum)
    548 
    549 DELEGATE_TO_GL_1(depthMask, DepthMask, WGC3Dboolean)
    550 
    551 DELEGATE_TO_GL_2(depthRange, DepthRangef, WGC3Dclampf, WGC3Dclampf)
    552 
    553 DELEGATE_TO_GL_2(detachShader, DetachShader, WebGLId, WebGLId)
    554 
    555 DELEGATE_TO_GL_1(disable, Disable, WGC3Denum)
    556 
    557 DELEGATE_TO_GL_1(disableVertexAttribArray, DisableVertexAttribArray,
    558                  WGC3Duint)
    559 
    560 DELEGATE_TO_GL_3(drawArrays, DrawArrays, WGC3Denum, WGC3Dint, WGC3Dsizei)
    561 
    562 void WebGraphicsContext3DInProcessCommandBufferImpl::drawElements(
    563     WGC3Denum mode,
    564     WGC3Dsizei count,
    565     WGC3Denum type,
    566     WGC3Dintptr offset) {
    567   ClearContext();
    568   gl_->DrawElements(
    569       mode, count, type,
    570       reinterpret_cast<void*>(static_cast<intptr_t>(offset)));
    571 }
    572 
    573 DELEGATE_TO_GL_1(enable, Enable, WGC3Denum)
    574 
    575 DELEGATE_TO_GL_1(enableVertexAttribArray, EnableVertexAttribArray,
    576                  WGC3Duint)
    577 
    578 DELEGATE_TO_GL(finish, Finish)
    579 
    580 DELEGATE_TO_GL(flush, Flush)
    581 
    582 DELEGATE_TO_GL_4(framebufferRenderbuffer, FramebufferRenderbuffer,
    583                  WGC3Denum, WGC3Denum, WGC3Denum, WebGLId)
    584 
    585 DELEGATE_TO_GL_5(framebufferTexture2D, FramebufferTexture2D,
    586                  WGC3Denum, WGC3Denum, WGC3Denum, WebGLId, WGC3Dint)
    587 
    588 DELEGATE_TO_GL_1(frontFace, FrontFace, WGC3Denum)
    589 
    590 DELEGATE_TO_GL_1(generateMipmap, GenerateMipmap, WGC3Denum)
    591 
    592 bool WebGraphicsContext3DInProcessCommandBufferImpl::getActiveAttrib(
    593     WebGLId program, WGC3Duint index, ActiveInfo& info) {
    594   ClearContext();
    595   if (!program) {
    596     synthesizeGLError(GL_INVALID_VALUE);
    597     return false;
    598   }
    599   GLint max_name_length = -1;
    600   gl_->GetProgramiv(
    601       program, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &max_name_length);
    602   if (max_name_length < 0)
    603     return false;
    604   scoped_ptr<GLchar[]> name(new GLchar[max_name_length]);
    605   if (!name) {
    606     synthesizeGLError(GL_OUT_OF_MEMORY);
    607     return false;
    608   }
    609   GLsizei length = 0;
    610   GLint size = -1;
    611   GLenum type = 0;
    612   gl_->GetActiveAttrib(
    613       program, index, max_name_length, &length, &size, &type, name.get());
    614   if (size < 0) {
    615     return false;
    616   }
    617   info.name = WebKit::WebString::fromUTF8(name.get(), length);
    618   info.type = type;
    619   info.size = size;
    620   return true;
    621 }
    622 
    623 bool WebGraphicsContext3DInProcessCommandBufferImpl::getActiveUniform(
    624     WebGLId program, WGC3Duint index, ActiveInfo& info) {
    625   ClearContext();
    626   GLint max_name_length = -1;
    627   gl_->GetProgramiv(
    628       program, GL_ACTIVE_UNIFORM_MAX_LENGTH, &max_name_length);
    629   if (max_name_length < 0)
    630     return false;
    631   scoped_ptr<GLchar[]> name(new GLchar[max_name_length]);
    632   if (!name) {
    633     synthesizeGLError(GL_OUT_OF_MEMORY);
    634     return false;
    635   }
    636   GLsizei length = 0;
    637   GLint size = -1;
    638   GLenum type = 0;
    639   gl_->GetActiveUniform(
    640       program, index, max_name_length, &length, &size, &type, name.get());
    641   if (size < 0) {
    642     return false;
    643   }
    644   info.name = WebKit::WebString::fromUTF8(name.get(), length);
    645   info.type = type;
    646   info.size = size;
    647   return true;
    648 }
    649 
    650 DELEGATE_TO_GL_4(getAttachedShaders, GetAttachedShaders,
    651                  WebGLId, WGC3Dsizei, WGC3Dsizei*, WebGLId*)
    652 
    653 DELEGATE_TO_GL_2R(getAttribLocation, GetAttribLocation,
    654                   WebGLId, const WGC3Dchar*, WGC3Dint)
    655 
    656 DELEGATE_TO_GL_2(getBooleanv, GetBooleanv, WGC3Denum, WGC3Dboolean*)
    657 
    658 DELEGATE_TO_GL_3(getBufferParameteriv, GetBufferParameteriv,
    659                  WGC3Denum, WGC3Denum, WGC3Dint*)
    660 
    661 WebKit::WebGraphicsContext3D::Attributes
    662 WebGraphicsContext3DInProcessCommandBufferImpl::getContextAttributes() {
    663   return attributes_;
    664 }
    665 
    666 WGC3Denum WebGraphicsContext3DInProcessCommandBufferImpl::getError() {
    667   ClearContext();
    668   if (!synthetic_errors_.empty()) {
    669     std::vector<WGC3Denum>::iterator iter = synthetic_errors_.begin();
    670     WGC3Denum err = *iter;
    671     synthetic_errors_.erase(iter);
    672     return err;
    673   }
    674 
    675   return gl_->GetError();
    676 }
    677 
    678 bool WebGraphicsContext3DInProcessCommandBufferImpl::isContextLost() {
    679   return context_lost_reason_ != GL_NO_ERROR;
    680 }
    681 
    682 DELEGATE_TO_GL_2(getFloatv, GetFloatv, WGC3Denum, WGC3Dfloat*)
    683 
    684 DELEGATE_TO_GL_4(getFramebufferAttachmentParameteriv,
    685                  GetFramebufferAttachmentParameteriv,
    686                  WGC3Denum, WGC3Denum, WGC3Denum, WGC3Dint*)
    687 
    688 DELEGATE_TO_GL_2(getIntegerv, GetIntegerv, WGC3Denum, WGC3Dint*)
    689 
    690 DELEGATE_TO_GL_3(getProgramiv, GetProgramiv, WebGLId, WGC3Denum, WGC3Dint*)
    691 
    692 WebKit::WebString WebGraphicsContext3DInProcessCommandBufferImpl::
    693     getProgramInfoLog(WebGLId program) {
    694   ClearContext();
    695   GLint logLength = 0;
    696   gl_->GetProgramiv(program, GL_INFO_LOG_LENGTH, &logLength);
    697   if (!logLength)
    698     return WebKit::WebString();
    699   scoped_ptr<GLchar[]> log(new GLchar[logLength]);
    700   if (!log)
    701     return WebKit::WebString();
    702   GLsizei returnedLogLength = 0;
    703   gl_->GetProgramInfoLog(
    704       program, logLength, &returnedLogLength, log.get());
    705   DCHECK_EQ(logLength, returnedLogLength + 1);
    706   WebKit::WebString res =
    707       WebKit::WebString::fromUTF8(log.get(), returnedLogLength);
    708   return res;
    709 }
    710 
    711 DELEGATE_TO_GL_3(getRenderbufferParameteriv, GetRenderbufferParameteriv,
    712                  WGC3Denum, WGC3Denum, WGC3Dint*)
    713 
    714 DELEGATE_TO_GL_3(getShaderiv, GetShaderiv, WebGLId, WGC3Denum, WGC3Dint*)
    715 
    716 WebKit::WebString WebGraphicsContext3DInProcessCommandBufferImpl::
    717     getShaderInfoLog(WebGLId shader) {
    718   ClearContext();
    719   GLint logLength = 0;
    720   gl_->GetShaderiv(shader, GL_INFO_LOG_LENGTH, &logLength);
    721   if (!logLength)
    722     return WebKit::WebString();
    723   scoped_ptr<GLchar[]> log(new GLchar[logLength]);
    724   if (!log)
    725     return WebKit::WebString();
    726   GLsizei returnedLogLength = 0;
    727   gl_->GetShaderInfoLog(
    728       shader, logLength, &returnedLogLength, log.get());
    729   DCHECK_EQ(logLength, returnedLogLength + 1);
    730   WebKit::WebString res =
    731       WebKit::WebString::fromUTF8(log.get(), returnedLogLength);
    732   return res;
    733 }
    734 
    735 DELEGATE_TO_GL_4(getShaderPrecisionFormat, GetShaderPrecisionFormat,
    736                  WGC3Denum, WGC3Denum, WGC3Dint*, WGC3Dint*)
    737 
    738 WebKit::WebString WebGraphicsContext3DInProcessCommandBufferImpl::
    739     getShaderSource(WebGLId shader) {
    740   ClearContext();
    741   GLint logLength = 0;
    742   gl_->GetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &logLength);
    743   if (!logLength)
    744     return WebKit::WebString();
    745   scoped_ptr<GLchar[]> log(new GLchar[logLength]);
    746   if (!log)
    747     return WebKit::WebString();
    748   GLsizei returnedLogLength = 0;
    749   gl_->GetShaderSource(
    750       shader, logLength, &returnedLogLength, log.get());
    751   if (!returnedLogLength)
    752     return WebKit::WebString();
    753   DCHECK_EQ(logLength, returnedLogLength + 1);
    754   WebKit::WebString res =
    755       WebKit::WebString::fromUTF8(log.get(), returnedLogLength);
    756   return res;
    757 }
    758 
    759 WebKit::WebString WebGraphicsContext3DInProcessCommandBufferImpl::
    760     getTranslatedShaderSourceANGLE(WebGLId shader) {
    761   ClearContext();
    762   GLint logLength = 0;
    763   gl_->GetShaderiv(
    764       shader, GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE, &logLength);
    765   if (!logLength)
    766     return WebKit::WebString();
    767   scoped_ptr<GLchar[]> log(new GLchar[logLength]);
    768   if (!log)
    769     return WebKit::WebString();
    770   GLsizei returnedLogLength = 0;
    771   gl_->GetTranslatedShaderSourceANGLE(
    772       shader, logLength, &returnedLogLength, log.get());
    773   if (!returnedLogLength)
    774     return WebKit::WebString();
    775   DCHECK_EQ(logLength, returnedLogLength + 1);
    776   WebKit::WebString res =
    777       WebKit::WebString::fromUTF8(log.get(), returnedLogLength);
    778   return res;
    779 }
    780 
    781 WebKit::WebString WebGraphicsContext3DInProcessCommandBufferImpl::getString(
    782     WGC3Denum name) {
    783   ClearContext();
    784   return WebKit::WebString::fromUTF8(
    785       reinterpret_cast<const char*>(gl_->GetString(name)));
    786 }
    787 
    788 DELEGATE_TO_GL_3(getTexParameterfv, GetTexParameterfv,
    789                  WGC3Denum, WGC3Denum, WGC3Dfloat*)
    790 
    791 DELEGATE_TO_GL_3(getTexParameteriv, GetTexParameteriv,
    792                  WGC3Denum, WGC3Denum, WGC3Dint*)
    793 
    794 DELEGATE_TO_GL_3(getUniformfv, GetUniformfv, WebGLId, WGC3Dint, WGC3Dfloat*)
    795 
    796 DELEGATE_TO_GL_3(getUniformiv, GetUniformiv, WebGLId, WGC3Dint, WGC3Dint*)
    797 
    798 DELEGATE_TO_GL_2R(getUniformLocation, GetUniformLocation,
    799                   WebGLId, const WGC3Dchar*, WGC3Dint)
    800 
    801 DELEGATE_TO_GL_3(getVertexAttribfv, GetVertexAttribfv,
    802                  WGC3Duint, WGC3Denum, WGC3Dfloat*)
    803 
    804 DELEGATE_TO_GL_3(getVertexAttribiv, GetVertexAttribiv,
    805                  WGC3Duint, WGC3Denum, WGC3Dint*)
    806 
    807 WGC3Dsizeiptr WebGraphicsContext3DInProcessCommandBufferImpl::
    808     getVertexAttribOffset(WGC3Duint index, WGC3Denum pname) {
    809   ClearContext();
    810   GLvoid* value = NULL;
    811   // NOTE: If pname is ever a value that returns more then 1 element
    812   // this will corrupt memory.
    813   gl_->GetVertexAttribPointerv(index, pname, &value);
    814   return static_cast<WGC3Dsizeiptr>(reinterpret_cast<intptr_t>(value));
    815 }
    816 
    817 DELEGATE_TO_GL_2(hint, Hint, WGC3Denum, WGC3Denum)
    818 
    819 DELEGATE_TO_GL_1RB(isBuffer, IsBuffer, WebGLId, WGC3Dboolean)
    820 
    821 DELEGATE_TO_GL_1RB(isEnabled, IsEnabled, WGC3Denum, WGC3Dboolean)
    822 
    823 DELEGATE_TO_GL_1RB(isFramebuffer, IsFramebuffer, WebGLId, WGC3Dboolean)
    824 
    825 DELEGATE_TO_GL_1RB(isProgram, IsProgram, WebGLId, WGC3Dboolean)
    826 
    827 DELEGATE_TO_GL_1RB(isRenderbuffer, IsRenderbuffer, WebGLId, WGC3Dboolean)
    828 
    829 DELEGATE_TO_GL_1RB(isShader, IsShader, WebGLId, WGC3Dboolean)
    830 
    831 DELEGATE_TO_GL_1RB(isTexture, IsTexture, WebGLId, WGC3Dboolean)
    832 
    833 DELEGATE_TO_GL_1(lineWidth, LineWidth, WGC3Dfloat)
    834 
    835 DELEGATE_TO_GL_1(linkProgram, LinkProgram, WebGLId)
    836 
    837 DELEGATE_TO_GL_2(pixelStorei, PixelStorei, WGC3Denum, WGC3Dint)
    838 
    839 DELEGATE_TO_GL_2(polygonOffset, PolygonOffset, WGC3Dfloat, WGC3Dfloat)
    840 
    841 DELEGATE_TO_GL_7(readPixels, ReadPixels,
    842                  WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei, WGC3Denum,
    843                  WGC3Denum, void*)
    844 
    845 void WebGraphicsContext3DInProcessCommandBufferImpl::releaseShaderCompiler() {
    846   ClearContext();
    847 }
    848 
    849 DELEGATE_TO_GL_4(renderbufferStorage, RenderbufferStorage,
    850                  WGC3Denum, WGC3Denum, WGC3Dsizei, WGC3Dsizei)
    851 
    852 DELEGATE_TO_GL_2(sampleCoverage, SampleCoverage, WGC3Dfloat, WGC3Dboolean)
    853 
    854 DELEGATE_TO_GL_4(scissor, Scissor, WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei)
    855 
    856 void WebGraphicsContext3DInProcessCommandBufferImpl::shaderSource(
    857     WebGLId shader, const WGC3Dchar* string) {
    858   ClearContext();
    859   GLint length = strlen(string);
    860   gl_->ShaderSource(shader, 1, &string, &length);
    861 }
    862 
    863 DELEGATE_TO_GL_3(stencilFunc, StencilFunc, WGC3Denum, WGC3Dint, WGC3Duint)
    864 
    865 DELEGATE_TO_GL_4(stencilFuncSeparate, StencilFuncSeparate,
    866                  WGC3Denum, WGC3Denum, WGC3Dint, WGC3Duint)
    867 
    868 DELEGATE_TO_GL_1(stencilMask, StencilMask, WGC3Duint)
    869 
    870 DELEGATE_TO_GL_2(stencilMaskSeparate, StencilMaskSeparate,
    871                  WGC3Denum, WGC3Duint)
    872 
    873 DELEGATE_TO_GL_3(stencilOp, StencilOp,
    874                  WGC3Denum, WGC3Denum, WGC3Denum)
    875 
    876 DELEGATE_TO_GL_4(stencilOpSeparate, StencilOpSeparate,
    877                  WGC3Denum, WGC3Denum, WGC3Denum, WGC3Denum)
    878 
    879 DELEGATE_TO_GL_9(texImage2D, TexImage2D,
    880                  WGC3Denum, WGC3Dint, WGC3Denum, WGC3Dsizei, WGC3Dsizei,
    881                  WGC3Dint, WGC3Denum, WGC3Denum, const void*)
    882 
    883 DELEGATE_TO_GL_3(texParameterf, TexParameterf,
    884                  WGC3Denum, WGC3Denum, WGC3Dfloat);
    885 
    886 static const unsigned int kTextureWrapR = 0x8072;
    887 
    888 void WebGraphicsContext3DInProcessCommandBufferImpl::texParameteri(
    889     WGC3Denum target, WGC3Denum pname, WGC3Dint param) {
    890   ClearContext();
    891   // TODO(kbr): figure out whether the setting of TEXTURE_WRAP_R in
    892   // GraphicsContext3D.cpp is strictly necessary to avoid seams at the
    893   // edge of cube maps, and, if it is, push it into the GLES2 service
    894   // side code.
    895   if (pname == kTextureWrapR) {
    896     return;
    897   }
    898   gl_->TexParameteri(target, pname, param);
    899 }
    900 
    901 DELEGATE_TO_GL_9(texSubImage2D, TexSubImage2D,
    902                  WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dsizei,
    903                  WGC3Dsizei, WGC3Denum, WGC3Denum, const void*)
    904 
    905 DELEGATE_TO_GL_2(uniform1f, Uniform1f, WGC3Dint, WGC3Dfloat)
    906 
    907 DELEGATE_TO_GL_3(uniform1fv, Uniform1fv, WGC3Dint, WGC3Dsizei,
    908                  const WGC3Dfloat*)
    909 
    910 DELEGATE_TO_GL_2(uniform1i, Uniform1i, WGC3Dint, WGC3Dint)
    911 
    912 DELEGATE_TO_GL_3(uniform1iv, Uniform1iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
    913 
    914 DELEGATE_TO_GL_3(uniform2f, Uniform2f, WGC3Dint, WGC3Dfloat, WGC3Dfloat)
    915 
    916 DELEGATE_TO_GL_3(uniform2fv, Uniform2fv, WGC3Dint, WGC3Dsizei,
    917                  const WGC3Dfloat*)
    918 
    919 DELEGATE_TO_GL_3(uniform2i, Uniform2i, WGC3Dint, WGC3Dint, WGC3Dint)
    920 
    921 DELEGATE_TO_GL_3(uniform2iv, Uniform2iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
    922 
    923 DELEGATE_TO_GL_4(uniform3f, Uniform3f, WGC3Dint,
    924                  WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
    925 
    926 DELEGATE_TO_GL_3(uniform3fv, Uniform3fv, WGC3Dint, WGC3Dsizei,
    927                  const WGC3Dfloat*)
    928 
    929 DELEGATE_TO_GL_4(uniform3i, Uniform3i, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint)
    930 
    931 DELEGATE_TO_GL_3(uniform3iv, Uniform3iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
    932 
    933 DELEGATE_TO_GL_5(uniform4f, Uniform4f, WGC3Dint,
    934                  WGC3Dfloat, WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
    935 
    936 DELEGATE_TO_GL_3(uniform4fv, Uniform4fv, WGC3Dint, WGC3Dsizei,
    937                  const WGC3Dfloat*)
    938 
    939 DELEGATE_TO_GL_5(uniform4i, Uniform4i, WGC3Dint,
    940                  WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dint)
    941 
    942 DELEGATE_TO_GL_3(uniform4iv, Uniform4iv, WGC3Dint, WGC3Dsizei, const WGC3Dint*)
    943 
    944 DELEGATE_TO_GL_4(uniformMatrix2fv, UniformMatrix2fv,
    945                  WGC3Dint, WGC3Dsizei, WGC3Dboolean, const WGC3Dfloat*)
    946 
    947 DELEGATE_TO_GL_4(uniformMatrix3fv, UniformMatrix3fv,
    948                  WGC3Dint, WGC3Dsizei, WGC3Dboolean, const WGC3Dfloat*)
    949 
    950 DELEGATE_TO_GL_4(uniformMatrix4fv, UniformMatrix4fv,
    951                  WGC3Dint, WGC3Dsizei, WGC3Dboolean, const WGC3Dfloat*)
    952 
    953 DELEGATE_TO_GL_1(useProgram, UseProgram, WebGLId)
    954 
    955 DELEGATE_TO_GL_1(validateProgram, ValidateProgram, WebGLId)
    956 
    957 DELEGATE_TO_GL_2(vertexAttrib1f, VertexAttrib1f, WGC3Duint, WGC3Dfloat)
    958 
    959 DELEGATE_TO_GL_2(vertexAttrib1fv, VertexAttrib1fv, WGC3Duint,
    960                  const WGC3Dfloat*)
    961 
    962 DELEGATE_TO_GL_3(vertexAttrib2f, VertexAttrib2f, WGC3Duint,
    963                  WGC3Dfloat, WGC3Dfloat)
    964 
    965 DELEGATE_TO_GL_2(vertexAttrib2fv, VertexAttrib2fv, WGC3Duint,
    966                  const WGC3Dfloat*)
    967 
    968 DELEGATE_TO_GL_4(vertexAttrib3f, VertexAttrib3f, WGC3Duint,
    969                  WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
    970 
    971 DELEGATE_TO_GL_2(vertexAttrib3fv, VertexAttrib3fv, WGC3Duint,
    972                  const WGC3Dfloat*)
    973 
    974 DELEGATE_TO_GL_5(vertexAttrib4f, VertexAttrib4f, WGC3Duint,
    975                  WGC3Dfloat, WGC3Dfloat, WGC3Dfloat, WGC3Dfloat)
    976 
    977 DELEGATE_TO_GL_2(vertexAttrib4fv, VertexAttrib4fv, WGC3Duint,
    978                  const WGC3Dfloat*)
    979 
    980 void WebGraphicsContext3DInProcessCommandBufferImpl::vertexAttribPointer(
    981     WGC3Duint index, WGC3Dint size, WGC3Denum type, WGC3Dboolean normalized,
    982     WGC3Dsizei stride, WGC3Dintptr offset) {
    983   ClearContext();
    984   gl_->VertexAttribPointer(
    985       index, size, type, normalized, stride,
    986       reinterpret_cast<void*>(static_cast<intptr_t>(offset)));
    987 }
    988 
    989 DELEGATE_TO_GL_4(viewport, Viewport,
    990                  WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei)
    991 
    992 WebGLId WebGraphicsContext3DInProcessCommandBufferImpl::createBuffer() {
    993   ClearContext();
    994   GLuint o;
    995   gl_->GenBuffers(1, &o);
    996   return o;
    997 }
    998 
    999 WebGLId WebGraphicsContext3DInProcessCommandBufferImpl::createFramebuffer() {
   1000   ClearContext();
   1001   GLuint o = 0;
   1002   gl_->GenFramebuffers(1, &o);
   1003   return o;
   1004 }
   1005 
   1006 WebGLId WebGraphicsContext3DInProcessCommandBufferImpl::createProgram() {
   1007   ClearContext();
   1008   return gl_->CreateProgram();
   1009 }
   1010 
   1011 WebGLId WebGraphicsContext3DInProcessCommandBufferImpl::createRenderbuffer() {
   1012   ClearContext();
   1013   GLuint o;
   1014   gl_->GenRenderbuffers(1, &o);
   1015   return o;
   1016 }
   1017 
   1018 DELEGATE_TO_GL_1R(createShader, CreateShader, WGC3Denum, WebGLId);
   1019 
   1020 WebGLId WebGraphicsContext3DInProcessCommandBufferImpl::createTexture() {
   1021   ClearContext();
   1022   GLuint o;
   1023   gl_->GenTextures(1, &o);
   1024   return o;
   1025 }
   1026 
   1027 void WebGraphicsContext3DInProcessCommandBufferImpl::deleteBuffer(
   1028     WebGLId buffer) {
   1029   ClearContext();
   1030   gl_->DeleteBuffers(1, &buffer);
   1031 }
   1032 
   1033 void WebGraphicsContext3DInProcessCommandBufferImpl::deleteFramebuffer(
   1034     WebGLId framebuffer) {
   1035   ClearContext();
   1036   gl_->DeleteFramebuffers(1, &framebuffer);
   1037 }
   1038 
   1039 void WebGraphicsContext3DInProcessCommandBufferImpl::deleteProgram(
   1040     WebGLId program) {
   1041   ClearContext();
   1042   gl_->DeleteProgram(program);
   1043 }
   1044 
   1045 void WebGraphicsContext3DInProcessCommandBufferImpl::deleteRenderbuffer(
   1046     WebGLId renderbuffer) {
   1047   ClearContext();
   1048   gl_->DeleteRenderbuffers(1, &renderbuffer);
   1049 }
   1050 
   1051 void WebGraphicsContext3DInProcessCommandBufferImpl::deleteShader(
   1052     WebGLId shader) {
   1053   ClearContext();
   1054   gl_->DeleteShader(shader);
   1055 }
   1056 
   1057 void WebGraphicsContext3DInProcessCommandBufferImpl::deleteTexture(
   1058     WebGLId texture) {
   1059   ClearContext();
   1060   gl_->DeleteTextures(1, &texture);
   1061 }
   1062 
   1063 void WebGraphicsContext3DInProcessCommandBufferImpl::OnSwapBuffersComplete() {
   1064 }
   1065 
   1066 void WebGraphicsContext3DInProcessCommandBufferImpl::setContextLostCallback(
   1067     WebGraphicsContext3D::WebGraphicsContextLostCallback* cb) {
   1068   context_lost_callback_ = cb;
   1069 }
   1070 
   1071 WGC3Denum WebGraphicsContext3DInProcessCommandBufferImpl::
   1072     getGraphicsResetStatusARB() {
   1073   return context_lost_reason_;
   1074 }
   1075 
   1076 DELEGATE_TO_GL_5(texImageIOSurface2DCHROMIUM, TexImageIOSurface2DCHROMIUM,
   1077                  WGC3Denum, WGC3Dint, WGC3Dint, WGC3Duint, WGC3Duint)
   1078 
   1079 DELEGATE_TO_GL_5(texStorage2DEXT, TexStorage2DEXT,
   1080                  WGC3Denum, WGC3Dint, WGC3Duint, WGC3Dint, WGC3Dint)
   1081 
   1082 WebGLId WebGraphicsContext3DInProcessCommandBufferImpl::createQueryEXT() {
   1083   GLuint o;
   1084   gl_->GenQueriesEXT(1, &o);
   1085   return o;
   1086 }
   1087 
   1088 void WebGraphicsContext3DInProcessCommandBufferImpl::
   1089     deleteQueryEXT(WebGLId query) {
   1090   gl_->DeleteQueriesEXT(1, &query);
   1091 }
   1092 
   1093 DELEGATE_TO_GL_1R(isQueryEXT, IsQueryEXT, WebGLId, WGC3Dboolean)
   1094 DELEGATE_TO_GL_2(beginQueryEXT, BeginQueryEXT, WGC3Denum, WebGLId)
   1095 DELEGATE_TO_GL_1(endQueryEXT, EndQueryEXT, WGC3Denum)
   1096 DELEGATE_TO_GL_3(getQueryivEXT, GetQueryivEXT, WGC3Denum, WGC3Denum, WGC3Dint*)
   1097 DELEGATE_TO_GL_3(getQueryObjectuivEXT, GetQueryObjectuivEXT,
   1098                  WebGLId, WGC3Denum, WGC3Duint*)
   1099 
   1100 DELEGATE_TO_GL_6(copyTextureCHROMIUM, CopyTextureCHROMIUM, WGC3Denum, WGC3Duint,
   1101                  WGC3Duint, WGC3Dint, WGC3Denum, WGC3Denum)
   1102 
   1103 void WebGraphicsContext3DInProcessCommandBufferImpl::insertEventMarkerEXT(
   1104     const WGC3Dchar* marker) {
   1105   gl_->InsertEventMarkerEXT(0, marker);
   1106 }
   1107 
   1108 void WebGraphicsContext3DInProcessCommandBufferImpl::pushGroupMarkerEXT(
   1109     const WGC3Dchar* marker) {
   1110   gl_->PushGroupMarkerEXT(0, marker);
   1111 }
   1112 
   1113 DELEGATE_TO_GL(popGroupMarkerEXT, PopGroupMarkerEXT);
   1114 
   1115 DELEGATE_TO_GL_2(bindTexImage2DCHROMIUM, BindTexImage2DCHROMIUM,
   1116                  WGC3Denum, WGC3Dint)
   1117 DELEGATE_TO_GL_2(releaseTexImage2DCHROMIUM, ReleaseTexImage2DCHROMIUM,
   1118                  WGC3Denum, WGC3Dint)
   1119 
   1120 DELEGATE_TO_GL_1R(createStreamTextureCHROMIUM, CreateStreamTextureCHROMIUM,
   1121                   WebGLId, WebGLId)
   1122 DELEGATE_TO_GL_1(destroyStreamTextureCHROMIUM, DestroyStreamTextureCHROMIUM,
   1123                  WebGLId)
   1124 
   1125 void* WebGraphicsContext3DInProcessCommandBufferImpl::mapBufferCHROMIUM(
   1126     WGC3Denum target, WGC3Denum access) {
   1127   ClearContext();
   1128   return gl_->MapBufferCHROMIUM(target, access);
   1129 }
   1130 
   1131 WGC3Dboolean WebGraphicsContext3DInProcessCommandBufferImpl::
   1132     unmapBufferCHROMIUM(WGC3Denum target) {
   1133   ClearContext();
   1134   return gl_->UnmapBufferCHROMIUM(target);
   1135 }
   1136 
   1137 GrGLInterface* WebGraphicsContext3DInProcessCommandBufferImpl::
   1138     onCreateGrGLInterface() {
   1139   return CreateCommandBufferSkiaGLBinding();
   1140 }
   1141 
   1142 void WebGraphicsContext3DInProcessCommandBufferImpl::OnContextLost() {
   1143   // TODO(kbr): improve the precision here.
   1144   context_lost_reason_ = GL_UNKNOWN_CONTEXT_RESET_ARB;
   1145   if (context_lost_callback_) {
   1146     context_lost_callback_->onContextLost();
   1147   }
   1148 }
   1149 
   1150 DELEGATE_TO_GL_3R(createImageCHROMIUM, CreateImageCHROMIUM,
   1151                   WGC3Dsizei, WGC3Dsizei, WGC3Denum, WGC3Duint);
   1152 
   1153 DELEGATE_TO_GL_1(destroyImageCHROMIUM, DestroyImageCHROMIUM, WGC3Duint);
   1154 
   1155 DELEGATE_TO_GL_3(getImageParameterivCHROMIUM, GetImageParameterivCHROMIUM,
   1156                  WGC3Duint, WGC3Denum, GLint*);
   1157 
   1158 DELEGATE_TO_GL_2R(mapImageCHROMIUM, MapImageCHROMIUM,
   1159                   WGC3Duint, WGC3Denum, void*);
   1160 
   1161 DELEGATE_TO_GL_1(unmapImageCHROMIUM, UnmapImageCHROMIUM, WGC3Duint);
   1162 
   1163 DELEGATE_TO_GL_3(bindUniformLocationCHROMIUM, BindUniformLocationCHROMIUM,
   1164                  WebGLId, WGC3Dint, const WGC3Dchar*)
   1165 
   1166 DELEGATE_TO_GL(shallowFlushCHROMIUM, ShallowFlushCHROMIUM)
   1167 DELEGATE_TO_GL(shallowFinishCHROMIUM, ShallowFinishCHROMIUM)
   1168 
   1169 DELEGATE_TO_GL_1(genMailboxCHROMIUM, GenMailboxCHROMIUM, WGC3Dbyte*)
   1170 DELEGATE_TO_GL_2(produceTextureCHROMIUM, ProduceTextureCHROMIUM,
   1171                  WGC3Denum, const WGC3Dbyte*)
   1172 DELEGATE_TO_GL_2(consumeTextureCHROMIUM, ConsumeTextureCHROMIUM,
   1173                  WGC3Denum, const WGC3Dbyte*)
   1174 
   1175 DELEGATE_TO_GL_2(drawBuffersEXT, DrawBuffersEXT,
   1176                  WGC3Dsizei, const WGC3Denum*)
   1177 
   1178 unsigned WebGraphicsContext3DInProcessCommandBufferImpl::insertSyncPoint() {
   1179   shallowFlushCHROMIUM();
   1180   return 0;
   1181 }
   1182 
   1183 void WebGraphicsContext3DInProcessCommandBufferImpl::signalSyncPoint(
   1184     unsigned sync_point,
   1185     WebGraphicsSyncPointCallback* callback) {
   1186   // Take ownership of the callback.
   1187   context_->SignalSyncPoint(
   1188       sync_point, base::Bind(&OnSignalSyncPoint, base::Owned(callback)));
   1189 }
   1190 
   1191 void WebGraphicsContext3DInProcessCommandBufferImpl::signalQuery(
   1192     unsigned query,
   1193     WebGraphicsSyncPointCallback* callback) {
   1194   // Take ownership of the callback.
   1195   context_->SignalQuery(query,
   1196                         base::Bind(&OnSignalSyncPoint, base::Owned(callback)));
   1197 }
   1198 
   1199 void WebGraphicsContext3DInProcessCommandBufferImpl::loseContextCHROMIUM(
   1200     WGC3Denum current, WGC3Denum other) {
   1201   gl_->LoseContextCHROMIUM(current, other);
   1202   gl_->ShallowFlushCHROMIUM();
   1203 }
   1204 
   1205 DELEGATE_TO_GL_9(asyncTexImage2DCHROMIUM, AsyncTexImage2DCHROMIUM,
   1206     WGC3Denum, WGC3Dint, WGC3Denum, WGC3Dsizei, WGC3Dsizei, WGC3Dint,
   1207     WGC3Denum, WGC3Denum, const void*)
   1208 
   1209 DELEGATE_TO_GL_9(asyncTexSubImage2DCHROMIUM, AsyncTexSubImage2DCHROMIUM,
   1210     WGC3Denum, WGC3Dint, WGC3Dint, WGC3Dint, WGC3Dsizei, WGC3Dsizei,
   1211     WGC3Denum, WGC3Denum, const void*)
   1212 
   1213 DELEGATE_TO_GL_1(waitAsyncTexImage2DCHROMIUM, WaitAsyncTexImage2DCHROMIUM,
   1214     WGC3Denum)
   1215 
   1216 }  // namespace gpu
   1217 }  // namespace webkit
   1218