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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
#include "COM_MemoryBuffer.h"
#include "COM_MemoryProxy.h"
#include "COM_NodeOperation.h"
class ReadBufferOperation : public NodeOperation {
private:
MemoryProxy *m_memoryProxy;
bool m_single_value; /* single value stored in buffer, copied from associated write operation */
unsigned int m_offset;
MemoryBuffer *m_buffer;
public:
ReadBufferOperation(DataType datetype);
void setMemoryProxy(MemoryProxy *memoryProxy)
{
this->m_memoryProxy = memoryProxy;
}
MemoryProxy *getMemoryProxy()
{
return this->m_memoryProxy;
}
void determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2]);
void *initializeTileData(rcti *rect);
void executePixelSampled(float output[4], float x, float y, PixelSampler sampler);
void executePixelExtend(float output[4],
float x,
float y,
PixelSampler sampler,
MemoryBufferExtend extend_x,
MemoryBufferExtend extend_y);
void executePixelFiltered(float output[4], float x, float y, float dx[2], float dy[2]);
bool isReadBufferOperation() const
{
return true;
}
void setOffset(unsigned int offset)
{
this->m_offset = offset;
}
unsigned int getOffset() const
{
return this->m_offset;
}
bool determineDependingAreaOfInterest(rcti *input,
ReadBufferOperation *readOperation,
rcti *output);
MemoryBuffer *getInputMemoryBuffer(MemoryBuffer **memoryBuffers)
{
return memoryBuffers[this->m_offset];
}
void readResolutionFromWriteBuffer();
void updateMemoryBuffer();
};
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