components/native_viewport/onscreen_context_provider.cc

   1 // Copyright 2015 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 "components/native_viewport/onscreen_context_provider.h"
   6
   7 #include "components/gles2/command_buffer_driver.h"
   8 #include "components/gles2/command_buffer_impl.h"
   9 #include "components/gles2/gpu_state.h"
  10
  11 namespace native_viewport {
  12
  13 OnscreenContextProvider::OnscreenContextProvider(
  14     const scoped_refptr<gles2::GpuState>& state)
  15     : state_(state), widget_(gfx::kNullAcceleratedWidget), binding_(this) {
  16 }
  17
  18 OnscreenContextProvider::~OnscreenContextProvider() {
  19 }
  20
  21 void OnscreenContextProvider::Bind(
  22     mojo::InterfaceRequest<mojo::ContextProvider> request) {
  23   binding_.Bind(request.Pass());
  24 }
  25
  26 void OnscreenContextProvider::SetAcceleratedWidget(
  27     gfx::AcceleratedWidget widget) {
  28   widget_ = widget;
  29   if (widget_ != gfx::kNullAcceleratedWidget &&
  30       !pending_create_callback_.is_null())
  31     CreateAndReturnCommandBuffer();
  32 }
  33
  34 void OnscreenContextProvider::Create(
  35     mojo::ViewportParameterListenerPtr viewport_parameter_listener,
  36     const CreateCallback& callback) {
  37   if (!pending_create_callback_.is_null())
  38     pending_create_callback_.Run(nullptr);
  39   pending_listener_ = viewport_parameter_listener.Pass();
  40   pending_create_callback_ = callback;
  41
  42   if (widget_ != gfx::kNullAcceleratedWidget)
  43     CreateAndReturnCommandBuffer();
  44 }
  45
  46 void OnscreenContextProvider::CreateAndReturnCommandBuffer() {
  47   mojo::CommandBufferPtr cb;
  48   new gles2::CommandBufferImpl(
  49       GetProxy(&cb), pending_listener_.Pass(), state_->control_task_runner(),
  50       state_->sync_point_manager(),
  51       make_scoped_ptr(new gles2::CommandBufferDriver(
  52           widget_, state_->share_group(), state_->mailbox_manager(),
  53           state_->sync_point_manager())));
  54   pending_create_callback_.Run(cb.Pass());
  55   pending_create_callback_.reset();
  56 }
  57
  58 }  // namespace mojo