mojo/cc/context_provider_mojo.cc

   1 // Copyright 2014 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 "mojo/cc/context_provider_mojo.h"
   6
   7 #include "base/logging.h"
   8 #include "mojo/gles2/gles2_context.h"
   9 #include "mojo/gpu/mojo_gles2_impl_autogen.h"
  10 #include "third_party/mojo/src/mojo/public/cpp/environment/environment.h"
  11
  12 namespace mojo {
  13
  14 ContextProviderMojo::ContextProviderMojo(
  15     ScopedMessagePipeHandle command_buffer_handle)
  16     : command_buffer_handle_(command_buffer_handle.Pass()),
  17       context_(nullptr) {
  18   // Enabled the CHROMIUM_image extension to use GpuMemoryBuffers. The
  19   // implementation of which is used in CommandBufferDriver.
  20   capabilities_.gpu.image = true;
  21 }
  22
  23 bool ContextProviderMojo::BindToCurrentThread() {
  24   DCHECK(command_buffer_handle_.is_valid());
  25   context_ = MojoGLES2CreateContext(command_buffer_handle_.release().value(),
  26                                     &ContextLostThunk,
  27                                     this,
  28                                     Environment::GetDefaultAsyncWaiter());
  29   context_gl_.reset(new MojoGLES2Impl(context_));
  30   return !!context_;
  31 }
  32
  33 gpu::gles2::GLES2Interface* ContextProviderMojo::ContextGL() {
  34   return context_gl_.get();
  35 }
  36
  37 gpu::ContextSupport* ContextProviderMojo::ContextSupport() {
  38   if (!context_)
  39     return NULL;
  40   // TODO(rjkroege): Ensure that UIP does not take this code path.
  41   return static_cast<gles2::GLES2Context*>(context_)->context_support();
  42 }
  43
  44 class GrContext* ContextProviderMojo::GrContext() { return NULL; }
  45
  46 void ContextProviderMojo::InvalidateGrContext(uint32_t state) {
  47 }
  48
  49 cc::ContextProvider::Capabilities ContextProviderMojo::ContextCapabilities() {
  50   return capabilities_;
  51 }
  52
  53 void ContextProviderMojo::SetupLock() {
  54 }
  55
  56 base::Lock* ContextProviderMojo::GetLock() {
  57   return &context_lock_;
  58 }
  59
  60 bool ContextProviderMojo::DestroyedOnMainThread() { return !context_; }
  61
  62 ContextProviderMojo::~ContextProviderMojo() {
  63   context_gl_.reset();
  64   if (context_)
  65     MojoGLES2DestroyContext(context_);
  66 }
  67
  68 void ContextProviderMojo::ContextLost() {
  69 }
  70
  71 }  // namespace mojo