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/*
* 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
*/
#include "COM_VectorBlurOperation.h"
#include "BLI_math.h"
// use the implementation of blender internal renderer to calculate the vector blur.
extern "C" {
#include "RE_pipeline.h"
}
VectorBlurOperation::VectorBlurOperation(): NodeOperation() {
this->addInputSocket(COM_DT_COLOR);
this->addInputSocket(COM_DT_VALUE); // ZBUF
this->addInputSocket(COM_DT_COLOR); //SPEED
this->addOutputSocket(COM_DT_COLOR);
this->settings = NULL;
this->cachedInstance = NULL;
this->inputImageProgram = NULL;
this->inputSpeedProgram = NULL;
this->inputZProgram = NULL;
setComplex(true);
}
void VectorBlurOperation::initExecution() {
initMutex();
this->inputImageProgram = getInputSocketReader(0);
this->inputZProgram = getInputSocketReader(1);
this->inputSpeedProgram = getInputSocketReader(2);
this->cachedInstance = NULL;
QualityStepHelper::initExecution(COM_QH_INCREASE);
}
void VectorBlurOperation::executePixel(float* color, int x, int y, MemoryBuffer *inputBuffers[], void* data) {
float* buffer = (float*) data;
int index = (y*this->getWidth() + x) * COM_NUMBER_OF_CHANNELS;
color[0] = buffer[index];
color[1] = buffer[index+1];
color[2] = buffer[index+2];
color[3] = buffer[index+3];
}
void VectorBlurOperation::deinitExecution() {
deinitMutex();
this->inputImageProgram = NULL;
this->inputSpeedProgram = NULL;
this->inputZProgram = NULL;
if (this->cachedInstance) {
delete cachedInstance;
this->cachedInstance = NULL;
}
}
void* VectorBlurOperation::initializeTileData(rcti *rect, MemoryBuffer **memoryBuffers) {
if (this->cachedInstance) return this->cachedInstance;
BLI_mutex_lock(getMutex());
if (this->cachedInstance == NULL) {
MemoryBuffer* tile = (MemoryBuffer*)inputImageProgram->initializeTileData(rect, memoryBuffers);
MemoryBuffer* speed= (MemoryBuffer*)inputSpeedProgram->initializeTileData(rect, memoryBuffers);
MemoryBuffer* z = (MemoryBuffer*)inputZProgram->initializeTileData(rect, memoryBuffers);
float* data = new float[this->getWidth()*this->getHeight()*COM_NUMBER_OF_CHANNELS];
memcpy(data, tile->getBuffer(),this->getWidth()*this->getHeight()*COM_NUMBER_OF_CHANNELS*sizeof(float));
this->generateVectorBlur(data, tile, speed, z);
this->cachedInstance = data;
}
BLI_mutex_unlock(getMutex());
return this->cachedInstance;
}
bool VectorBlurOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output) {
if (this->cachedInstance == NULL) {
rcti newInput;
newInput.xmax = this->getWidth();
newInput.xmin = 0;
newInput.ymax = this->getHeight();
newInput.ymin = 0;
return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
} else {
return false;
}
}
void VectorBlurOperation::generateVectorBlur(float* data, MemoryBuffer* inputImage, MemoryBuffer* inputSpeed, MemoryBuffer* inputZ) {
float *zbuf = inputZ->convertToValueBuffer();
NodeBlurData blurdata;
blurdata.samples = this->settings->samples/QualityStepHelper::getStep();
blurdata.maxspeed = this->settings->maxspeed;
blurdata.minspeed = this->settings->minspeed;
blurdata.curved = this->settings->curved;
blurdata.fac = this->settings->fac;
RE_zbuf_accumulate_vecblur(&blurdata, this->getWidth(), this->getHeight(), data, inputImage->getBuffer(), inputSpeed->getBuffer(), zbuf);
delete zbuf;
return;
}
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