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// Copyright (c) 2011 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.
// This file defines the CommandBufferEngine class, providing the main loop for
// the service, exposing the RPC API, managing the command parser.
#ifndef GPU_COMMAND_BUFFER_SERVICE_CMD_BUFFER_ENGINE_H_
#define GPU_COMMAND_BUFFER_SERVICE_CMD_BUFFER_ENGINE_H_
#include "base/basictypes.h"
#include "gpu/command_buffer/common/buffer.h"
namespace gpu {
class CommandBufferEngine {
public:
CommandBufferEngine() {
}
virtual ~CommandBufferEngine() {
}
// Gets the base address and size of a registered shared memory buffer.
// Parameters:
// shm_id: the identifier for the shared memory buffer.
virtual Buffer GetSharedMemoryBuffer(int32 shm_id) = 0;
// Sets the token value.
virtual void set_token(int32 token) = 0;
// Sets the shared memory buffer used for commands.
virtual bool SetGetBuffer(int32 transfer_buffer_id) = 0;
// Sets the "get" pointer. Return false if offset is out of range.
virtual bool SetGetOffset(int32 offset) = 0;
// Gets the "get" pointer.
virtual int32 GetGetOffset() = 0;
private:
DISALLOW_COPY_AND_ASSIGN(CommandBufferEngine);
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_CMD_BUFFER_ENGINE_H_
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