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      1 // Copyright (c) 2013 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 WEBKIT_COMMON_GPU_CONTEXT_PROVIDER_IN_PROCESS_H_
      6 #define WEBKIT_COMMON_GPU_CONTEXT_PROVIDER_IN_PROCESS_H_
      7 
      8 #include "base/compiler_specific.h"
      9 #include "base/memory/scoped_ptr.h"
     10 #include "base/synchronization/lock.h"
     11 #include "base/threading/thread_checker.h"
     12 #include "webkit/common/gpu/context_provider_web_context.h"
     13 #include "webkit/common/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
     14 #include "webkit/common/gpu/webkit_gpu_export.h"
     15 
     16 namespace blink { class WebGraphicsContext3D; }
     17 
     18 namespace webkit {
     19 namespace gpu {
     20 class GrContextForWebGraphicsContext3D;
     21 
     22 class WEBKIT_GPU_EXPORT ContextProviderInProcess
     23     : NON_EXPORTED_BASE(public ContextProviderWebContext) {
     24  public:
     25   static scoped_refptr<ContextProviderInProcess> Create(
     26       scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context3d,
     27       const std::string& debug_name);
     28 
     29   // Uses default attributes for creating an offscreen context.
     30   static scoped_refptr<ContextProviderInProcess> CreateOffscreen(
     31       bool lose_context_when_out_of_memory);
     32 
     33   virtual blink::WebGraphicsContext3D* WebContext3D() OVERRIDE;
     34 
     35   virtual bool BindToCurrentThread() OVERRIDE;
     36   virtual Capabilities ContextCapabilities() OVERRIDE;
     37   virtual ::gpu::gles2::GLES2Interface* ContextGL() OVERRIDE;
     38   virtual ::gpu::ContextSupport* ContextSupport() OVERRIDE;
     39   virtual class GrContext* GrContext() OVERRIDE;
     40   virtual bool IsContextLost() OVERRIDE;
     41   virtual void VerifyContexts() OVERRIDE;
     42   virtual void DeleteCachedResources() OVERRIDE;
     43   virtual bool DestroyedOnMainThread() OVERRIDE;
     44   virtual void SetLostContextCallback(
     45       const LostContextCallback& lost_context_callback) OVERRIDE;
     46   virtual void SetMemoryPolicyChangedCallback(
     47       const MemoryPolicyChangedCallback& memory_policy_changed_callback)
     48       OVERRIDE;
     49 
     50  protected:
     51   ContextProviderInProcess(
     52       scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context3d,
     53       const std::string& debug_name);
     54   virtual ~ContextProviderInProcess();
     55 
     56   void OnLostContext();
     57 
     58  private:
     59   void InitializeCapabilities();
     60 
     61   base::ThreadChecker main_thread_checker_;
     62   base::ThreadChecker context_thread_checker_;
     63 
     64   scoped_ptr<webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl>
     65       context3d_;
     66   scoped_ptr<webkit::gpu::GrContextForWebGraphicsContext3D> gr_context_;
     67 
     68   LostContextCallback lost_context_callback_;
     69 
     70   base::Lock destroyed_lock_;
     71   bool destroyed_;
     72 
     73   std::string debug_name_;
     74   class LostContextCallbackProxy;
     75   scoped_ptr<LostContextCallbackProxy> lost_context_callback_proxy_;
     76 
     77   cc::ContextProvider::Capabilities capabilities_;
     78 
     79   DISALLOW_COPY_AND_ASSIGN(ContextProviderInProcess);
     80 };
     81 
     82 }  // namespace gpu
     83 }  // namespace webkit
     84 
     85 #endif  // WEBKIT_COMMON_GPU_CONTEXT_PROVIDER_IN_PROCESS_H_
     86