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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_AntiAliasOperation.h"
#include "BLI_math.h"
#include "BLI_utildefines.h"
extern "C" {
#include "RE_render_ext.h"
}
AntiAliasOperation::AntiAliasOperation(): NodeOperation() {
this->addInputSocket(COM_DT_VALUE);
this->addOutputSocket(COM_DT_VALUE);
this->valueReader = NULL;
this->buffer = NULL;
this->setComplex(true);
}
void AntiAliasOperation::initExecution() {
this->valueReader = this->getInputSocketReader(0);
NodeOperation::initMutex();
}
void AntiAliasOperation::executePixel(float* color, int x, int y, MemoryBuffer *inputBuffers[], void * data) {
if (y < 0 || y >= this->height || x < 0 || x >= this->width) {
color[0] = 0.0f;
} else {
int offset = y*this->width + x;
color[0] = buffer[offset]/255.0f;
}
}
void AntiAliasOperation::deinitExecution() {
this->valueReader = NULL;
if (this->buffer) {
delete buffer;
}
NodeOperation::deinitMutex();
}
bool AntiAliasOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output) {
rcti imageInput;
if (this->buffer) {
return false;
} else {
NodeOperation* operation = getInputOperation(0);
imageInput.xmax = operation->getWidth();
imageInput.xmin = 0;
imageInput.ymax = operation->getHeight();
imageInput.ymin = 0;
if (operation->determineDependingAreaOfInterest(&imageInput, readOperation, output) ) {
return true;
}
}
return false;
}
void* AntiAliasOperation::initializeTileData(rcti *rect, MemoryBuffer **memoryBuffers) {
if (this->buffer) {return buffer;}
BLI_mutex_lock(getMutex());
if (this->buffer == NULL) {
MemoryBuffer* tile = (MemoryBuffer*)valueReader->initializeTileData(rect, memoryBuffers);
int size = tile->getHeight()*tile->getWidth();
float * input = tile->getBuffer();
char* valuebuffer = new char[size];
for (int i = 0 ; i < size ; i ++) {
float in = input[i* COM_NUMBER_OF_CHANNELS];
if (in < 0.0f) { in = 0.0f;}
if (in > 1.0f) {in = 1.0f;}
valuebuffer[i] = in * 255;
}
antialias_tagbuf(tile->getWidth(), tile->getHeight(), valuebuffer);
this->buffer = valuebuffer;
}
BLI_mutex_unlock(getMutex());
return this->buffer;
}
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