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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
NON_EXPORTED_BASE(public ContextProviderWebContext)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