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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 blink { class WebGraphicsContext3D; }
     18 
     19 namespace cc {
     20 class TestWebGraphicsContext3D;
     21 class TestGLES2Interface;
     22 
     23 class TestContextProvider : public ContextProvider {
     24  public:
     25   typedef base::Callback<scoped_ptr<TestWebGraphicsContext3D>(void)>
     26     CreateCallback;
     27 
     28   static scoped_refptr<TestContextProvider> Create();
     29   static scoped_refptr<TestContextProvider> Create(
     30       scoped_ptr<TestWebGraphicsContext3D> context);
     31 
     32   virtual bool BindToCurrentThread() OVERRIDE;
     33   virtual Capabilities ContextCapabilities() OVERRIDE;
     34   virtual blink::WebGraphicsContext3D* Context3d() OVERRIDE;
     35   virtual gpu::gles2::GLES2Interface* ContextGL() OVERRIDE;
     36   virtual gpu::ContextSupport* ContextSupport() OVERRIDE;
     37   virtual class GrContext* GrContext() OVERRIDE;
     38   virtual void MakeGrContextCurrent() OVERRIDE;
     39   virtual bool IsContextLost() OVERRIDE;
     40   virtual void VerifyContexts() OVERRIDE;
     41   virtual bool DestroyedOnMainThread() OVERRIDE;
     42   virtual void SetLostContextCallback(const LostContextCallback& cb) OVERRIDE;
     43   virtual void SetMemoryPolicyChangedCallback(
     44       const MemoryPolicyChangedCallback& cb) OVERRIDE;
     45 
     46   TestWebGraphicsContext3D* TestContext3d();
     47 
     48   // This returns the TestWebGraphicsContext3D but is valid to call
     49   // before the context is bound to a thread. This is needed to set up
     50   // state on the test context before binding. Don't call
     51   // makeContextCurrent on the context returned from this method.
     52   TestWebGraphicsContext3D* UnboundTestContext3d();
     53 
     54   TestContextSupport* support() { return &support_; }
     55 
     56   void SetMemoryAllocation(const ManagedMemoryPolicy& policy);
     57 
     58   void SetMaxTransferBufferUsageBytes(size_t max_transfer_buffer_usage_bytes);
     59 
     60  protected:
     61   explicit TestContextProvider(scoped_ptr<TestWebGraphicsContext3D> context);
     62   virtual ~TestContextProvider();
     63 
     64  private:
     65   void OnLostContext();
     66 
     67   TestContextSupport support_;
     68 
     69   scoped_ptr<TestWebGraphicsContext3D> context3d_;
     70   scoped_ptr<TestGLES2Interface> context_gl_;
     71   bool bound_;
     72 
     73   base::ThreadChecker main_thread_checker_;
     74   base::ThreadChecker context_thread_checker_;
     75 
     76   base::Lock destroyed_lock_;
     77   bool destroyed_;
     78 
     79   LostContextCallback lost_context_callback_;
     80   MemoryPolicyChangedCallback memory_policy_changed_callback_;
     81 
     82   class LostContextCallbackProxy;
     83   scoped_ptr<LostContextCallbackProxy> lost_context_callback_proxy_;
     84 
     85   base::WeakPtrFactory<TestContextProvider> weak_ptr_factory_;
     86 
     87   DISALLOW_COPY_AND_ASSIGN(TestContextProvider);
     88 };
     89 
     90 }  // namespace cc
     91 
     92 #endif  // CC_TEST_TEST_CONTEXT_PROVIDER_H_
     93 
     94