Jeroen Bakker
35d3b6316b
The compostor used a fixed size of 4 floats to hold pixel data. this patch will select size of a pixel based on its type. It uses 1 float for Value, 3 float for vector and 4 floats for color data types. When benchmarking on shots (opening shot of caminandes) we get a reduction of memory of 30% and a tiny speedup as less data transformations needs to take place (but these are negligable. More information of the patch can be found on https://developer.blender.org/D627 and http://wiki.blender.org/index.php/Dev:Ref/Proposals/Compositor2014_p1.1_TD Developers: jbakker & mdewanchand Thanks for Sergey for his indept review.
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], PixelSampler sampler);
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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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