components/view_manager/surfaces/surfaces_context_provider.h

   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 #ifndef COMPONENTS_VIEW_MANAGER_SURFACES_SURFACES_CONTEXT_PROVIDER_H_
   6 #define COMPONENTS_VIEW_MANAGER_SURFACES_SURFACES_CONTEXT_PROVIDER_H_
   7
   8 #include "base/macros.h"
   9 #include "base/synchronization/lock.h"
  10 #include "base/threading/non_thread_safe.h"
  11 #include "cc/output/context_provider.h"
  12 #include "components/view_manager/gles2/command_buffer_local_client.h"
  13 #include "ui/gfx/native_widget_types.h"
  14
  15 namespace gpu {
  16
  17 class TransferBuffer;
  18
  19 namespace gles2 {
  20 class GLES2CmdHelper;
  21 class GLES2Implementation;
  22 }
  23
  24 }  // namespace gpu
  25
  26 namespace gles2 {
  27 class CommandBufferDriver;
  28 class CommandBufferImpl;
  29 class CommandBufferLocal;
  30 class GpuState;
  31 }
  32
  33 namespace surfaces {
  34
  35 class SurfacesContextProviderDelegate;
  36
  37 class SurfacesContextProvider : public cc::ContextProvider,
  38                                 public gles2::CommandBufferLocalClient,
  39                                 public base::NonThreadSafe {
  40  public:
  41   SurfacesContextProvider(SurfacesContextProviderDelegate* delegate,
  42                           gfx::AcceleratedWidget widget,
  43                           const scoped_refptr<gles2::GpuState>& state);
  44
  45   // cc::ContextProvider implementation.
  46   bool BindToCurrentThread() override;
  47   gpu::gles2::GLES2Interface* ContextGL() override;
  48   gpu::ContextSupport* ContextSupport() override;
  49   class GrContext* GrContext() override;
  50   void InvalidateGrContext(uint32_t state) override;
  51   Capabilities ContextCapabilities() override;
  52   void VerifyContexts() override {}
  53   void DeleteCachedResources() override {}
  54   bool DestroyedOnMainThread() override;
  55   void SetLostContextCallback(
  56       const LostContextCallback& lost_context_callback) override;
  57   void SetMemoryPolicyChangedCallback(
  58       const MemoryPolicyChangedCallback& memory_policy_changed_callback)
  59       override {}
  60   void SetupLock() override;
  61   base::Lock* GetLock() override;
  62
  63  protected:
  64   friend class base::RefCountedThreadSafe<SurfacesContextProvider>;
  65   ~SurfacesContextProvider() override;
  66
  67  private:
  68   // CommandBufferLocalClient:
  69   void UpdateVSyncParameters(int64_t timebase, int64_t interval) override;
  70   void DidLoseContext() override;
  71
  72   // From GLES2Context:
  73   // Initialized in BindToCurrentThread.
  74   scoped_ptr<gpu::gles2::GLES2CmdHelper> gles2_helper_;
  75   scoped_ptr<gpu::TransferBuffer> transfer_buffer_;
  76   scoped_ptr<gpu::gles2::GLES2Implementation> implementation_;
  77
  78   cc::ContextProvider::Capabilities capabilities_;
  79   LostContextCallback lost_context_callback_;
  80
  81   SurfacesContextProviderDelegate* delegate_;
  82   scoped_refptr<gles2::GpuState> state_;
  83   gfx::AcceleratedWidget widget_;
  84   scoped_ptr<gles2::CommandBufferLocal> command_buffer_local_;
  85
  86   base::Lock context_lock_;
  87
  88   DISALLOW_COPY_AND_ASSIGN(SurfacesContextProvider);
  89 };
  90
  91 }  // namespace surfaces
  92
  93 #endif  // COMPONENTS_VIEW_MANAGER_SURFACES_SURFACES_CONTEXT_PROVIDER_H_