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/*
* Copyright (c) 2011, Denis Steckelmacher <steckdenis@yahoo.fr>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file buffer.h
* \brief CPU buffer
*/
#ifndef __CPU_BUFFER_H__
#define __CPU_BUFFER_H__
#include "../deviceinterface.h"
namespace Coal
{
class CPUDevice;
class MemObject;
/**
* \brief CPU implementation of \c Coal::MemObject
*
* This class is responsible of the actual allocation of buffer objects, using
* \c malloc() or by reusing a given \c host_ptr.
*/
class CPUBuffer : public DeviceBuffer
{
public:
/**
* \brief Constructor
* \param device Device for which the buffer is allocated
* \param buffer \c Coal::MemObject holding information about the buffer
* \param rs return code (\c CL_SUCCESS if all is good)
*/
CPUBuffer(CPUDevice *device, MemObject *buffer, cl_int *rs);
~CPUBuffer();
bool allocate();
DeviceInterface *device() const;
void *data() const; /*!< \brief Pointer to the buffer's data */
void *nativeGlobalPointer() const;
bool allocated() const;
private:
CPUDevice *p_device;
MemObject *p_buffer;
void *p_data;
bool p_data_malloced;
};
}
#endif
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