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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright 2011, Blender Foundation.
*/
#pragma once
#ifdef WITH_CXX_GUARDEDALLOC
# include "MEM_guardedalloc.h"
#endif
#include "COM_defines.h"
namespace blender::compositor {
/* Forward declarations. */
class MemoryBuffer;
class ExecutionGroup;
class WriteBufferOperation;
/**
* \brief A MemoryProxy is a unique identifier for a memory buffer.
* A single MemoryProxy is used among all chunks of the same buffer,
* the MemoryBuffer only stores the data of a single chunk.
* \ingroup Memory
*/
class MemoryProxy {
private:
/**
* \brief reference to the output operation of the executiongroup
*/
WriteBufferOperation *m_writeBufferOperation;
/**
* \brief reference to the executor. the Execution group that can fill a chunk
*/
ExecutionGroup *m_executor;
/**
* \brief the allocated memory
*/
MemoryBuffer *m_buffer;
/**
* \brief datatype of this MemoryProxy
*/
DataType m_datatype;
public:
MemoryProxy(DataType type);
/**
* \brief set the ExecutionGroup that can be scheduled to calculate a certain chunk.
* \param group: the ExecutionGroup to set
*/
void setExecutor(ExecutionGroup *executor)
{
m_executor = executor;
}
/**
* \brief get the ExecutionGroup that can be scheduled to calculate a certain chunk.
*/
ExecutionGroup *getExecutor() const
{
return m_executor;
}
/**
* \brief set the WriteBufferOperation that is responsible for writing to this MemoryProxy
* \param operation:
*/
void setWriteBufferOperation(WriteBufferOperation *operation)
{
m_writeBufferOperation = operation;
}
/**
* \brief get the WriteBufferOperation that is responsible for writing to this MemoryProxy
* \return WriteBufferOperation
*/
WriteBufferOperation *getWriteBufferOperation() const
{
return m_writeBufferOperation;
}
/**
* \brief allocate memory of size width x height
*/
void allocate(unsigned int width, unsigned int height);
/**
* \brief free the allocated memory
*/
void free();
/**
* \brief get the allocated memory
*/
inline MemoryBuffer *getBuffer()
{
return m_buffer;
}
inline DataType getDataType()
{
return m_datatype;
}
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("COM:MemoryProxy")
#endif
};
} // namespace blender::compositor
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