components/view_manager/native_viewport/onscreen_context_provider.h

   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 #ifndef COMPONENTS_VIEW_MANAGER_NATIVE_VIEWPORT_ONSCREEN_CONTEXT_PROVIDER_H_
   6 #define COMPONENTS_VIEW_MANAGER_NATIVE_VIEWPORT_ONSCREEN_CONTEXT_PROVIDER_H_
   7
   8 #include <set>
   9
  10 #include "base/memory/ref_counted.h"
  11 #include "components/view_manager/gles2/command_buffer_impl_observer.h"
  12 #include "components/view_manager/public/interfaces/context_provider.mojom.h"
  13 #include "components/view_manager/public/interfaces/viewport_parameter_listener.mojom.h"
  14 #include "ui/gfx/native_widget_types.h"
  15
  16 namespace gles2 {
  17 class CommandBufferDriver;
  18 class CommandBufferImpl;
  19 class GpuState;
  20 }
  21
  22 namespace native_viewport {
  23
  24 class OnscreenContextProvider : public mojo::ContextProvider,
  25                                 public gles2::CommandBufferImplObserver {
  26  public:
  27   explicit OnscreenContextProvider(const scoped_refptr<gles2::GpuState>& state);
  28   ~OnscreenContextProvider() override;
  29
  30   void Bind(mojo::InterfaceRequest<mojo::ContextProvider> request);
  31
  32   void SetAcceleratedWidget(gfx::AcceleratedWidget widget);
  33
  34  private:
  35   // mojo::ContextProvider implementation:
  36   void Create(mojo::ViewportParameterListenerPtr viewport_parameter_listener,
  37               const CreateCallback& callback) override;
  38
  39   // gles2::CommandBufferImplObserver:
  40   void OnCommandBufferImplDestroyed() override;
  41
  42   void CreateAndReturnCommandBuffer();
  43   void CommandBufferDestroyed(gles2::CommandBufferDriver* command_buffer);
  44
  45   gles2::CommandBufferImpl* command_buffer_impl_;
  46   scoped_refptr<gles2::GpuState> state_;
  47   gfx::AcceleratedWidget widget_;
  48   mojo::ViewportParameterListenerPtr pending_listener_;
  49   CreateCallback pending_create_callback_;
  50   mojo::Binding<mojo::ContextProvider> binding_;
  51   std::set<gles2::CommandBufferDriver*> command_buffers_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(OnscreenContextProvider);
  54 };
  55
  56 }  // namespace mojo
  57
  58 #endif  // COMPONENTS_VIEW_MANAGER_NATIVE_VIEWPORT_ONSCREEN_CONTEXT_PROVIDER_H_