Sergey Sharybin
3ec81b814c
Basically filtering was happening twice, first time by applying weights of EWA filter itself and then by applying subpixel offset while reading pixel values.
57 lines
2.3 KiB
C++
57 lines
2.3 KiB
C++
/*
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* Copyright 2011, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Contributor:
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* Jeroen Bakker
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* Monique Dewanchand
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*/
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#ifndef _COM_ReadBufferOperation_h
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#define _COM_ReadBufferOperation_h
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#include "COM_NodeOperation.h"
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#include "COM_MemoryProxy.h"
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#include "COM_MemoryBuffer.h"
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class ReadBufferOperation : public NodeOperation {
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private:
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MemoryProxy *m_memoryProxy;
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bool m_single_value; /* single value stored in buffer, copied from associated write operation */
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unsigned int m_offset;
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MemoryBuffer *m_buffer;
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public:
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ReadBufferOperation(DataType datetype);
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void setMemoryProxy(MemoryProxy *memoryProxy) { this->m_memoryProxy = memoryProxy; }
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MemoryProxy *getMemoryProxy() { return this->m_memoryProxy; }
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void determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2]);
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void *initializeTileData(rcti *rect);
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void executePixelSampled(float output[4], float x, float y, PixelSampler sampler);
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void executePixelExtend(float output[4], float x, float y, PixelSampler sampler,
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MemoryBufferExtend extend_x, MemoryBufferExtend extend_y);
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void executePixelFiltered(float output[4], float x, float y, float dx[2], float dy[2]);
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const bool isReadBufferOperation() const { return true; }
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void setOffset(unsigned int offset) { this->m_offset = offset; }
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unsigned int getOffset() const { return this->m_offset; }
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bool determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output);
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MemoryBuffer *getInputMemoryBuffer(MemoryBuffer **memoryBuffers) { return memoryBuffers[this->m_offset]; }
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void readResolutionFromWriteBuffer();
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void updateMemoryBuffer();
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};
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#endif
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