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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"
#include "MEM_guardedalloc.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->m_settings = NULL;
this->m_cachedInstance = NULL;
this->m_inputImageProgram = NULL;
this->m_inputSpeedProgram = NULL;
this->m_inputZProgram = NULL;
setComplex(true);
}
void VectorBlurOperation::initExecution()
{
initMutex();
this->m_inputImageProgram = getInputSocketReader(0);
this->m_inputZProgram = getInputSocketReader(1);
this->m_inputSpeedProgram = getInputSocketReader(2);
this->m_cachedInstance = NULL;
QualityStepHelper::initExecution(COM_QH_INCREASE);
}
void VectorBlurOperation::executePixel(float output[4], int x, int y, void *data)
{
float *buffer = (float *) data;
int index = (y * this->getWidth() + x) * COM_NUMBER_OF_CHANNELS;
copy_v4_v4(output, &buffer[index]);
}
void VectorBlurOperation::deinitExecution()
{
deinitMutex();
this->m_inputImageProgram = NULL;
this->m_inputSpeedProgram = NULL;
this->m_inputZProgram = NULL;
if (this->m_cachedInstance) {
MEM_freeN(this->m_cachedInstance);
this->m_cachedInstance = NULL;
}
}
void *VectorBlurOperation::initializeTileData(rcti *rect)
{
if (this->m_cachedInstance) {
return this->m_cachedInstance;
}
lockMutex();
if (this->m_cachedInstance == NULL) {
MemoryBuffer *tile = (MemoryBuffer *)this->m_inputImageProgram->initializeTileData(rect);
MemoryBuffer *speed = (MemoryBuffer *)this->m_inputSpeedProgram->initializeTileData(rect);
MemoryBuffer *z = (MemoryBuffer *)this->m_inputZProgram->initializeTileData(rect);
float *data = (float *)MEM_dupallocN(tile->getBuffer());
this->generateVectorBlur(data, tile, speed, z);
this->m_cachedInstance = data;
}
unlockMutex();
return this->m_cachedInstance;
}
bool VectorBlurOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
{
if (this->m_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->m_settings->samples / QualityStepHelper::getStep();
blurdata.maxspeed = this->m_settings->maxspeed;
blurdata.minspeed = this->m_settings->minspeed;
blurdata.curved = this->m_settings->curved;
blurdata.fac = this->m_settings->fac;
RE_zbuf_accumulate_vecblur(&blurdata, this->getWidth(), this->getHeight(), data, inputImage->getBuffer(), inputSpeed->getBuffer(), zbuf);
MEM_freeN((void *)zbuf);
return;
}
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