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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_COMMON_GPU_CLIENT_CONTEXT_PROVIDER_COMMAND_BUFFER
#define CONTENT_COMMON_GPU_CLIENT_CONTEXT_PROVIDER_COMMAND_BUFFER
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/synchronization/lock.h"
#include "base/threading/thread_checker.h"
#include "cc/output/context_provider.h"
#include "content/common/content_export.h"
#include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
namespace webkit {
namespace gpu {
class GrContextForWebGraphicsContext3D;
}
}
namespace content {
// Implementation of cc::ContextProvider that provides a
// WebGraphicsContext3DCommandBufferImpl context and a GrContext.
class CONTENT_EXPORT ContextProviderCommandBuffer
: NON_EXPORTED_BASE(public cc::ContextProvider) {
public:
static scoped_refptr<ContextProviderCommandBuffer> Create(
scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context3d,
const std::string& debug_name);
virtual bool BindToCurrentThread() OVERRIDE;
virtual WebGraphicsContext3DCommandBufferImpl* Context3d() OVERRIDE;
virtual gpu::gles2::GLES2Interface* ContextGL() OVERRIDE;
virtual gpu::ContextSupport* ContextSupport() OVERRIDE;
virtual class GrContext* GrContext() OVERRIDE;
virtual void MakeGrContextCurrent() OVERRIDE;
virtual Capabilities ContextCapabilities() OVERRIDE;
virtual bool IsContextLost() OVERRIDE;
virtual void VerifyContexts() OVERRIDE;
virtual bool DestroyedOnMainThread() OVERRIDE;
virtual void SetLostContextCallback(
const LostContextCallback& lost_context_callback) OVERRIDE;
virtual void SetMemoryPolicyChangedCallback(
const MemoryPolicyChangedCallback& memory_policy_changed_callback)
OVERRIDE;
void set_leak_on_destroy() {
base::AutoLock lock(main_thread_lock_);
leak_on_destroy_ = true;
}
protected:
ContextProviderCommandBuffer(
scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context3d,
const std::string& debug_name);
virtual ~ContextProviderCommandBuffer();
void OnLostContext();
void OnMemoryAllocationChanged(const gpu::MemoryAllocation& allocation);
private:
void InitializeCapabilities();
base::ThreadChecker main_thread_checker_;
base::ThreadChecker context_thread_checker_;
scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context3d_;
scoped_ptr<webkit::gpu::GrContextForWebGraphicsContext3D> gr_context_;
cc::ContextProvider::Capabilities capabilities_;
std::string debug_name_;
LostContextCallback lost_context_callback_;
MemoryPolicyChangedCallback memory_policy_changed_callback_;
base::Lock main_thread_lock_;
bool leak_on_destroy_;
bool destroyed_;
class LostContextCallbackProxy;
scoped_ptr<LostContextCallbackProxy> lost_context_callback_proxy_;
};
} // namespace content
#endif // CONTENT_COMMON_GPU_CLIENT_CONTEXT_PROVIDER_COMMAND_BUFFER
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