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1 // Copyright 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 CC_TEST_TEST_CONTEXT_PROVIDER_H_
6 #define CC_TEST_TEST_CONTEXT_PROVIDER_H_
7 
8 #include "base/callback.h"
9 #include "base/memory/scoped_ptr.h"
10 #include "base/memory/weak_ptr.h"
11 #include "base/synchronization/lock.h"
12 #include "base/threading/thread_checker.h"
13 #include "cc/output/context_provider.h"
14 #include "cc/test/test_context_support.h"
15 #include "gpu/command_buffer/client/gles2_interface_stub.h"
16 
17 namespace cc {
18 class TestWebGraphicsContext3D;
19 class TestGLES2Interface;
20 
21 class TestContextProvider : public ContextProvider {
22  public:
23   typedef base::Callback<scoped_ptr<TestWebGraphicsContext3D>(void)>
24     CreateCallback;
25 
26   static scoped_refptr<TestContextProvider> Create();
27   static scoped_refptr<TestContextProvider> Create(
28       scoped_ptr<TestWebGraphicsContext3D> context);
29 
30   virtual bool BindToCurrentThread() OVERRIDE;
31   virtual Capabilities ContextCapabilities() OVERRIDE;
32   virtual gpu::gles2::GLES2Interface* ContextGL() OVERRIDE;
33   virtual gpu::ContextSupport* ContextSupport() OVERRIDE;
34   virtual class GrContext* GrContext() OVERRIDE;
35   virtual bool IsContextLost() OVERRIDE;
36   virtual void VerifyContexts() OVERRIDE;
37   virtual void DeleteCachedResources() OVERRIDE;
38   virtual bool DestroyedOnMainThread() OVERRIDE;
39   virtual void SetLostContextCallback(const LostContextCallback& cb) OVERRIDE;
40   virtual void SetMemoryPolicyChangedCallback(
41       const MemoryPolicyChangedCallback& cb) OVERRIDE;
42 
43   TestWebGraphicsContext3D* TestContext3d();
44 
45   // This returns the TestWebGraphicsContext3D but is valid to call
46   // before the context is bound to a thread. This is needed to set up
47   // state on the test context before binding. Don't call
48   // InitializeOnCurrentThread on the context returned from this method.
49   TestWebGraphicsContext3D* UnboundTestContext3d();
50 
support()51   TestContextSupport* support() { return &support_; }
52 
53   void SetMemoryAllocation(const ManagedMemoryPolicy& policy);
54 
55   void SetMaxTransferBufferUsageBytes(size_t max_transfer_buffer_usage_bytes);
56 
57  protected:
58   explicit TestContextProvider(scoped_ptr<TestWebGraphicsContext3D> context);
59   virtual ~TestContextProvider();
60 
61  private:
62   void OnLostContext();
63 
64   TestContextSupport support_;
65 
66   scoped_ptr<TestWebGraphicsContext3D> context3d_;
67   scoped_ptr<TestGLES2Interface> context_gl_;
68   bool bound_;
69 
70   base::ThreadChecker main_thread_checker_;
71   base::ThreadChecker context_thread_checker_;
72 
73   base::Lock destroyed_lock_;
74   bool destroyed_;
75 
76   LostContextCallback lost_context_callback_;
77   MemoryPolicyChangedCallback memory_policy_changed_callback_;
78 
79   base::WeakPtrFactory<TestContextProvider> weak_ptr_factory_;
80 
81   DISALLOW_COPY_AND_ASSIGN(TestContextProvider);
82 };
83 
84 }  // namespace cc
85 
86 #endif  // CC_TEST_TEST_CONTEXT_PROVIDER_H_
87 
88