Jeroen Bakker
be1b5f82ce
* break out with glare node * Added OpenCL kernels compatible with AMD still need some testing.
114 lines
3.2 KiB
C++
114 lines
3.2 KiB
C++
/*
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* Copyright 2012, 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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* Dalai Felinto
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*/
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#include "COM_NormalizeOperation.h"
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NormalizeOperation::NormalizeOperation(): NodeOperation()
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{
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this->addInputSocket(COM_DT_VALUE);
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this->addOutputSocket(COM_DT_VALUE);
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this->imageReader = NULL;
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this->cachedInstance = NULL;
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this->setComplex(true);
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}
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void NormalizeOperation::initExecution()
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{
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this->imageReader = this->getInputSocketReader(0);
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NodeOperation::initMutex();
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}
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void NormalizeOperation::executePixel(float *color, int x, int y, MemoryBuffer *inputBuffers[], void * data)
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{
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/* using generic two floats struct to store x: min y: mult */
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NodeTwoFloats *minmult = (NodeTwoFloats *)data;
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float output[4];
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this->imageReader->read(output, x, y, inputBuffers, NULL);
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color[0] = (output[0] - minmult->x) * minmult->y;
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}
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void NormalizeOperation::deinitExecution()
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{
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this->imageReader = NULL;
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if (this->cachedInstance) {
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delete cachedInstance;
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}
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NodeOperation::deinitMutex();
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}
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bool NormalizeOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
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{
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rcti imageInput;
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NodeOperation *operation = getInputOperation(0);
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imageInput.xmax = operation->getWidth();
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imageInput.xmin = 0;
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imageInput.ymax = operation->getHeight();
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imageInput.ymin = 0;
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if (operation->determineDependingAreaOfInterest(&imageInput, readOperation, output) ) {
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return true;
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}
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return false;
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}
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/* The code below assumes all data is inside range +- this, and that input buffer is single channel */
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#define BLENDER_ZMAX 10000.0f
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void *NormalizeOperation::initializeTileData(rcti *rect, MemoryBuffer **memoryBuffers)
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{
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lockMutex();
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if (this->cachedInstance == NULL) {
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MemoryBuffer *tile = (MemoryBuffer*)imageReader->initializeTileData(rect, memoryBuffers);
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/* using generic two floats struct to store x: min y: mult */
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NodeTwoFloats *minmult = new NodeTwoFloats();
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float *buffer = tile->getBuffer();
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int p = tile->getWidth() * tile->getHeight();
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float *bc = buffer;
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float minv = 1.0f+BLENDER_ZMAX;
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float maxv = -1.0f-BLENDER_ZMAX;
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float value;
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while (p--) {
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value=bc[0];
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maxv = max(value, maxv);
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minv = min(value, minv);
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bc+=4;
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}
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minmult->x = minv;
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/* The rare case of flat buffer would cause a divide by 0 */
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minmult->y = ((maxv!=minv)? 1.0f/(maxv-minv):0.f);
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this->cachedInstance = minmult;
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}
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unlockMutex();
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return this->cachedInstance;
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}
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void NormalizeOperation::deinitializeTileData(rcti *rect, MemoryBuffer **memoryBuffers, void *data)
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{
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}
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