78 lines
2.6 KiB
C++
78 lines
2.6 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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#include "COM_ProjectorLensDistortionOperation.h"
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#include "BLI_math.h"
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#include "BLI_utildefines.h"
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ProjectorLensDistortionOperation::ProjectorLensDistortionOperation(): NodeOperation()
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{
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this->addInputSocket(COM_DT_COLOR);
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this->addOutputSocket(COM_DT_COLOR);
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this->setComplex(true);
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this->inputProgram = NULL;
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}
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void ProjectorLensDistortionOperation::initExecution()
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{
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this->inputProgram = this->getInputSocketReader(0);
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kr = 0.25f*MAX2(MIN2(this->dispersion, 1.f), 0.f);
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kr2 = kr * 20;
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}
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void *ProjectorLensDistortionOperation::initializeTileData(rcti *rect, MemoryBuffer **memoryBuffers)
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{
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void *buffer = inputProgram->initializeTileData(NULL, memoryBuffers);
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return buffer;
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}
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void ProjectorLensDistortionOperation::executePixel(float *color, int x, int y, MemoryBuffer *inputBuffers[], void *data)
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{
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float inputValue[4];
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const float height = this->getHeight();
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const float width = this->getWidth();
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const float v = (y + 0.5f)/height;
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const float u = (x + 0.5f)/width;
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MemoryBuffer * inputBuffer = (MemoryBuffer*)data;
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inputBuffer->readCubic(inputValue, (u*width + kr2) - 0.5f, v*height - 0.5f);
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color[0] = inputValue[0];
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inputBuffer->read(inputValue, x, y);
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color[1] = inputValue[1];
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inputBuffer->readCubic(inputValue, (u*width - kr2) - 0.5f, v*height - 0.5f);
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color[2] = inputValue[2];
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color[3] = 1.0f;
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}
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void ProjectorLensDistortionOperation::deinitExecution()
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{
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this->inputProgram = NULL;
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}
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bool ProjectorLensDistortionOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
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{
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rcti newInput;
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newInput.ymax = input->ymax;
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newInput.ymin = input->ymin;
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newInput.xmin = input->xmin-kr2-2;
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newInput.xmax = input->xmax+kr2+2;
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return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
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}
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