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// Copyright (c) 2012 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 PPAPI_PROXY_COMMAND_BUFFER_PROXY_H_
#define PPAPI_PROXY_COMMAND_BUFFER_PROXY_H_
#include "base/callback.h"
#include "base/containers/hash_tables.h"
#include "base/memory/scoped_ptr.h"
#include "gpu/command_buffer/client/gpu_control.h"
#include "gpu/command_buffer/common/command_buffer.h"
#include "gpu/command_buffer/common/command_buffer_shared.h"
#include "ppapi/proxy/ppapi_proxy_export.h"
#include "ppapi/shared_impl/host_resource.h"
namespace IPC {
class Message;
}
namespace ppapi {
namespace proxy {
class ProxyChannel;
class SerializedHandle;
class PPAPI_PROXY_EXPORT PpapiCommandBufferProxy : public gpu::CommandBuffer,
public gpu::GpuControl {
public:
PpapiCommandBufferProxy(const HostResource& resource,
ProxyChannel* channel,
const gpu::Capabilities& capabilities,
const SerializedHandle& shared_state);
virtual ~PpapiCommandBufferProxy();
// gpu::CommandBuffer implementation:
virtual bool Initialize() override;
virtual State GetLastState() override;
virtual int32 GetLastToken() override;
virtual void Flush(int32 put_offset) override;
virtual void WaitForTokenInRange(int32 start, int32 end) override;
virtual void WaitForGetOffsetInRange(int32 start, int32 end) override;
virtual void SetGetBuffer(int32 transfer_buffer_id) override;
virtual scoped_refptr<gpu::Buffer> CreateTransferBuffer(size_t size,
int32* id) override;
virtual void DestroyTransferBuffer(int32 id) override;
// gpu::GpuControl implementation:
virtual gpu::Capabilities GetCapabilities() override;
virtual int32 CreateImage(ClientBuffer buffer,
size_t width,
size_t height,
unsigned internalformat) override;
virtual void DestroyImage(int32 id) override;
virtual int32 CreateGpuMemoryBufferImage(size_t width,
size_t height,
unsigned internalformat,
unsigned usage) override;
virtual uint32 InsertSyncPoint() override;
virtual uint32 InsertFutureSyncPoint() override;
virtual void RetireSyncPoint(uint32 sync_point) override;
virtual void SignalSyncPoint(uint32 sync_point,
const base::Closure& callback) override;
virtual void SignalQuery(uint32 query,
const base::Closure& callback) override;
virtual void SetSurfaceVisible(bool visible) override;
virtual uint32 CreateStreamTexture(uint32 texture_id) override;
private:
bool Send(IPC::Message* msg);
void UpdateState(const gpu::CommandBuffer::State& state, bool success);
// Try to read an updated copy of the state from shared memory.
void TryUpdateState();
// The shared memory area used to update state.
gpu::CommandBufferSharedState* shared_state() const;
gpu::Capabilities capabilities_;
State last_state_;
scoped_ptr<base::SharedMemory> shared_state_shm_;
HostResource resource_;
ProxyChannel* channel_;
base::Closure channel_error_callback_;
DISALLOW_COPY_AND_ASSIGN(PpapiCommandBufferProxy);
};
} // namespace proxy
} // namespace ppapi
#endif // PPAPI_PROXY_COMMAND_BUFFER_PROXY_H_
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