8d2e79aaab
The issue with wrapping is that it requires correct interpolation of the border pixels. Since interpolation is done at the far left end of the node tree in buffer/image/etc read operations, the wrapping setting can not be used directly in those operations (otherwise in-line translate operations would cause conflicts). To make wrapping work correctly we need to add a buffer in front of the translate operation, which can then be interpolated correctly based on wrapping. The WrapOperation becomes a variant of ReadBufferOperation, which uses its wrapping setting to determine the correct "extend" mode for interpolation of the buffer.
57 lines
2.3 KiB
C++
57 lines
2.3 KiB
C++
/*
|
|
* 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;
|
|
bool m_single_value; /* single value stored in buffer, copied from associated write operation */
|
|
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 executePixelExtend(float output[4], float x, float y, PixelSampler sampler,
|
|
MemoryBufferExtend extend_x, MemoryBufferExtend extend_y);
|
|
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() 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();
|
|
};
|
|
|
|
#endif
|