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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
*/
#include "COM_ReadBufferOperation.h"
#include "COM_WriteBufferOperation.h"
#include "COM_defines.h"
ReadBufferOperation::ReadBufferOperation() : NodeOperation()
{
this->addOutputSocket(COM_DT_COLOR);
this->m_offset = 0;
this->m_buffer = NULL;
}
void *ReadBufferOperation::initializeTileData(rcti *rect)
{
return m_buffer;
}
void ReadBufferOperation::determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2])
{
if (this->m_memoryProxy != NULL) {
WriteBufferOperation *operation = this->m_memoryProxy->getWriteBufferOperation();
operation->determineResolution(resolution, preferredResolution);
operation->setResolution(resolution);
/// @todo: may not occur!, but does with blur node
if (this->m_memoryProxy->getExecutor()) {
this->m_memoryProxy->getExecutor()->setResolution(resolution);
}
}
}
void ReadBufferOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
{
if (sampler == COM_PS_NEAREST) {
m_buffer->read(output, x, y);
}
else {
m_buffer->readCubic(output, x, y);
}
}
void ReadBufferOperation::executePixel(float output[4], float x, float y, float dx, float dy, PixelSampler sampler)
{
m_buffer->readEWA(output, x, y, dx, dy, sampler);
}
bool ReadBufferOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
{
if (this == readOperation) {
BLI_rcti_init(output, input->xmin, input->xmax, input->ymin, input->ymax);
return true;
}
return false;
}
void ReadBufferOperation::readResolutionFromWriteBuffer()
{
if (this->m_memoryProxy != NULL) {
WriteBufferOperation *operation = this->m_memoryProxy->getWriteBufferOperation();
this->setWidth(operation->getWidth());
this->setHeight(operation->getHeight());
}
}
void ReadBufferOperation::updateMemoryBuffer()
{
this->m_buffer = this->getMemoryProxy()->getBuffer();
}
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