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blender-archive/source/blender/compositor/operations/COM_VariableSizeBokehBlurOperation.cpp

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C++

/*
* 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_VariableSizeBokehBlurOperation.h"
#include "BLI_math.h"
extern "C" {
#include "RE_pipeline.h"
}
VariableSizeBokehBlurOperation::VariableSizeBokehBlurOperation() : NodeOperation()
{
this->addInputSocket(COM_DT_COLOR);
this->addInputSocket(COM_DT_COLOR, COM_SC_NO_RESIZE); // do not resize the bokeh image.
this->addInputSocket(COM_DT_VALUE);
this->addOutputSocket(COM_DT_COLOR);
this->setComplex(true);
this->inputProgram = NULL;
this->inputBokehProgram = NULL;
this->inputSizeProgram = NULL;
this->maxBlur = 32.0f;
this->threshold = 0.0f;
}
void VariableSizeBokehBlurOperation::initExecution()
{
this->inputProgram = getInputSocketReader(0);
this->inputBokehProgram = getInputSocketReader(1);
this->inputSizeProgram = getInputSocketReader(2);
QualityStepHelper::initExecution(COM_QH_INCREASE);
}
void VariableSizeBokehBlurOperation::executePixel(float *color, int x, int y, MemoryBuffer *inputBuffers[], void *data)
{
float tempColor[4];
float readColor[4];
float bokeh[4];
tempColor[0] = 0;
tempColor[1] = 0;
tempColor[2] = 0;
tempColor[3] = 0;
float tempSize[4];
float overallmultiplyer[4] = {0.0f, 0.0f, 0.0f, 0.0f};
int miny = y - maxBlur;
int maxy = y + maxBlur;
int minx = x - maxBlur;
int maxx = x + maxBlur;
{
inputProgram->read(readColor, x, y, COM_PS_NEAREST, inputBuffers);
tempColor[0] += readColor[0];
tempColor[1] += readColor[1];
tempColor[2] += readColor[2];
tempColor[3] += readColor[3];
add_v4_v4(tempColor, readColor);
add_v3_fl(overallmultiplyer, 1.0f);
for (int ny = miny; ny < maxy; ny += QualityStepHelper::getStep()) {
for (int nx = minx; nx < maxx; nx += QualityStepHelper::getStep()) {
if (nx >= 0 && nx < this->getWidth() && ny >= 0 && ny < getHeight()) {
inputSizeProgram->read(tempSize, nx, ny, COM_PS_NEAREST, inputBuffers);
float size = tempSize[0];
// size += this->threshold;
float dx = nx - x;
float dy = ny - y;
if (nx == x && ny == y) {
/* pass */
}
else if (size >= fabsf(dx) && size >= fabsf(dy)) {
float u = 256 + dx * 256 / size;
float v = 256 + dy * 256 / size;
inputBokehProgram->read(bokeh, u, v, COM_PS_NEAREST, inputBuffers);
inputProgram->read(readColor, nx, ny, COM_PS_NEAREST, inputBuffers);
madd_v4_v4v4(tempColor, bokeh, readColor);
add_v4_v4(overallmultiplyer, bokeh);
}
}
}
}
color[0] = tempColor[0] * (1.0f / overallmultiplyer[0]);
color[1] = tempColor[1] * (1.0f / overallmultiplyer[1]);
color[2] = tempColor[2] * (1.0f / overallmultiplyer[2]);
color[3] = tempColor[3] * (1.0f / overallmultiplyer[3]);
}
}
void VariableSizeBokehBlurOperation::deinitExecution()
{
this->inputProgram = NULL;
this->inputBokehProgram = NULL;
this->inputSizeProgram = NULL;
}
bool VariableSizeBokehBlurOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
{
rcti newInput;
rcti bokehInput;
newInput.xmax = input->xmax + maxBlur + 2;
newInput.xmin = input->xmin - maxBlur + 2;
newInput.ymax = input->ymax + maxBlur - 2;
newInput.ymin = input->ymin - maxBlur - 2;
bokehInput.xmax = 512;
bokehInput.xmin = 0;
bokehInput.ymax = 512;
bokehInput.ymin = 0;
NodeOperation *operation = getInputOperation(2);
if (operation->determineDependingAreaOfInterest(&newInput, readOperation, output) ) {
return true;
}
operation = getInputOperation(1);
if (operation->determineDependingAreaOfInterest(&bokehInput, readOperation, output) ) {
return true;
}
operation = getInputOperation(0);
if (operation->determineDependingAreaOfInterest(&newInput, readOperation, output) ) {
return true;
}
return false;
}