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                                     nullptr,
  27                                     &ContextLostThunk,
  28                                     this,
  29                                     Environment::GetDefaultAsyncWaiter());
  30   context_gl_.reset(new MojoGLES2Impl(context_));
  31   return !!context_;
  32 }
  33
  34 gpu::gles2::GLES2Interface* ContextProviderMojo::ContextGL() {
  35   return context_gl_.get();
  36 }
  37
  38 gpu::ContextSupport* ContextProviderMojo::ContextSupport() {
  39   if (!context_)
  40     return NULL;
  41   // TODO(rjkroege): Ensure that UIP does not take this code path.
  42   return static_cast<gles2::GLES2Context*>(context_)->context_support();
  43 }
  44
  45 class GrContext* ContextProviderMojo::GrContext() { return NULL; }
  46
  47 void ContextProviderMojo::InvalidateGrContext(uint32_t state) {
  48 }
  49
  50 cc::ContextProvider::Capabilities ContextProviderMojo::ContextCapabilities() {
  51   return capabilities_;
  52 }
  53
  54 void ContextProviderMojo::SetupLock() {
  55 }
  56
  57 base::Lock* ContextProviderMojo::GetLock() {
  58   return &context_lock_;
  59 }
  60
  61 bool ContextProviderMojo::DestroyedOnMainThread() { return !context_; }
  62
  63 ContextProviderMojo::~ContextProviderMojo() {
  64   context_gl_.reset();
  65   if (context_)
  66     MojoGLES2DestroyContext(context_);
  67 }
  68
  69 void ContextProviderMojo::ContextLost() {
  70 }
  71
  72 }  // namespace mojo