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/*
* Copyright 2011, Blender Foundation.
*
* 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.
*
* Contributor:
* Jeroen Bakker
* Monique Dewanchand
*/
#ifndef _COM_ReadBufferOperation_h
#define _COM_ReadBufferOperation_h
#include "COM_NodeOperation.h"
#include "COM_MemoryProxy.h"
class ReadBufferOperation : public NodeOperation {
private:
MemoryProxy *m_memoryProxy;
unsigned int m_offset;
MemoryBuffer *m_buffer;
public:
ReadBufferOperation();
int isBufferOperation() { return true; }
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 executePixel(float output[4], float x, float y, PixelSampler sampler);
void executePixel(float output[4], float x, float y, float dx, float dy, PixelSampler sampler);
const bool isReadBufferOperation() const { return true; }
void setOffset(unsigned int offset) { this->m_offset = offset; }
unsigned int getOffset() { 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();
};
#endif
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