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/gpu/mojo_gles2_impl_autogen.h"
   9 #include "third_party/mojo/src/mojo/public/cpp/environment/environment.h"
  10
  11 namespace mojo {
  12
  13 ContextProviderMojo::ContextProviderMojo(
  14     ScopedMessagePipeHandle command_buffer_handle)
  15     : command_buffer_handle_(command_buffer_handle.Pass()),
  16       context_(nullptr) {
  17   // Enabled the CHROMIUM_image extension to use GpuMemoryBuffers. The
  18   // implementation of which is used in CommandBufferDriver.
  19   capabilities_.gpu.image = true;
  20 }
  21
  22 bool ContextProviderMojo::BindToCurrentThread() {
  23   DCHECK(command_buffer_handle_.is_valid());
  24   context_ = MojoGLES2CreateContext(command_buffer_handle_.release().value(),
  25                                     &ContextLostThunk,
  26                                     this,
  27                                     Environment::GetDefaultAsyncWaiter());
  28   context_gl_.reset(new MojoGLES2Impl(context_));
  29   return !!context_;
  30 }
  31
  32 gpu::gles2::GLES2Interface* ContextProviderMojo::ContextGL() {
  33   return context_gl_.get();
  34 }
  35
  36 gpu::ContextSupport* ContextProviderMojo::ContextSupport() {
  37   if (!context_)
  38     return NULL;
  39   return static_cast<gpu::ContextSupport*>(
  40       MojoGLES2GetContextSupport(context_));
  41 }
  42
  43 class GrContext* ContextProviderMojo::GrContext() { return NULL; }
  44
  45 void ContextProviderMojo::InvalidateGrContext(uint32_t state) {
  46 }
  47
  48 cc::ContextProvider::Capabilities ContextProviderMojo::ContextCapabilities() {
  49   return capabilities_;
  50 }
  51
  52 void ContextProviderMojo::SetupLock() {
  53 }
  54
  55 base::Lock* ContextProviderMojo::GetLock() {
  56   return &context_lock_;
  57 }
  58
  59 bool ContextProviderMojo::DestroyedOnMainThread() { return !context_; }
  60
  61 ContextProviderMojo::~ContextProviderMojo() {
  62   context_gl_.reset();
  63   if (context_)
  64     MojoGLES2DestroyContext(context_);
  65 }
  66
  67 void ContextProviderMojo::ContextLost() {
  68 }
  69
  70 }  // namespace mojo