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 "cc/output/context_provider.h"
  11 #include "third_party/mojo/src/mojo/public/c/gles2/gles2.h"
  12 #include "third_party/mojo/src/mojo/public/cpp/system/core.h"
  13
  14 namespace surfaces {
  15
  16 class SurfacesContextProvider : public cc::ContextProvider {
  17  public:
  18   explicit SurfacesContextProvider(
  19       mojo::ScopedMessagePipeHandle command_buffer_handle);
  20
  21   // cc::ContextProvider implementation.
  22   bool BindToCurrentThread() override;
  23   gpu::gles2::GLES2Interface* ContextGL() override;
  24   gpu::ContextSupport* ContextSupport() override;
  25   class GrContext* GrContext() override;
  26   void InvalidateGrContext(uint32_t state) override;
  27   Capabilities ContextCapabilities() override;
  28   void VerifyContexts() override {}
  29   void DeleteCachedResources() override {}
  30   bool DestroyedOnMainThread() override;
  31   void SetLostContextCallback(
  32       const LostContextCallback& lost_context_callback) override;
  33   void SetMemoryPolicyChangedCallback(
  34       const MemoryPolicyChangedCallback& memory_policy_changed_callback)
  35       override {}
  36   void SetupLock() override;
  37   base::Lock* GetLock() override;
  38
  39  protected:
  40   friend class base::RefCountedThreadSafe<SurfacesContextProvider>;
  41   ~SurfacesContextProvider() override;
  42
  43  private:
  44   static void ContextLostThunk(void* closure) {
  45     static_cast<SurfacesContextProvider*>(closure)->ContextLost();
  46   }
  47   void ContextLost();
  48
  49   cc::ContextProvider::Capabilities capabilities_;
  50   mojo::ScopedMessagePipeHandle command_buffer_handle_;
  51   MojoGLES2Context context_;
  52   LostContextCallback lost_context_callback_;
  53
  54   base::Lock context_lock_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(SurfacesContextProvider);
  57 };
  58
  59 }  // namespace surfaces
  60
  61 #endif  // COMPONENTS_VIEW_MANAGER_SURFACES_SURFACES_CONTEXT_PROVIDER_H_