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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_CropOperation.h"
#include "BLI_math.h"
CropBaseOperation::CropBaseOperation() : NodeOperation()
{
this->addInputSocket(COM_DT_COLOR, COM_SC_NO_RESIZE);
this->addOutputSocket(COM_DT_COLOR);
this->inputOperation = NULL;
this->settings = NULL;
}
void CropBaseOperation::updateArea()
{
SocketReader *inputReference = this->getInputSocketReader(0);
float width = inputReference->getWidth();
float height = inputReference->getHeight();
if (this->relative) {
settings->x1 = width * settings->fac_x1;
settings->x2 = width * settings->fac_x2;
settings->y1 = height * settings->fac_y1;
settings->y2 = height * settings->fac_y2;
}
if (width <= settings->x1 + 1)
settings->x1 = width - 1;
if (height <= settings->y1 + 1)
settings->y1 = height - 1;
if (width <= settings->x2 + 1)
settings->x2 = width - 1;
if (height <= settings->y2 + 1)
settings->y2 = height - 1;
this->xmax = MAX2(settings->x1, settings->x2) + 1;
this->xmin = MIN2(settings->x1, settings->x2);
this->ymax = MAX2(settings->y1, settings->y2) + 1;
this->ymin = MIN2(settings->y1, settings->y2);
}
void CropBaseOperation::initExecution()
{
this->inputOperation = this->getInputSocketReader(0);
updateArea();
}
void CropBaseOperation::deinitExecution()
{
this->inputOperation = NULL;
}
CropOperation::CropOperation() : CropBaseOperation()
{
/* pass */
}
void CropOperation::executePixel(float *color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[])
{
if ((x < this->xmax && x >= xmin) && (y < ymax && y >= ymin)) {
inputOperation->read(color, x, y, sampler, inputBuffers);
}
else {
color[0] = 0.0f;
color[1] = 0.0f;
color[2] = 0.0f;
color[3] = 0.0f;
}
}
CropImageOperation::CropImageOperation() : CropBaseOperation()
{
/* pass */
}
bool CropImageOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
{
rcti newInput;
newInput.xmax = input->xmax + this->xmin;
newInput.xmin = input->xmin + this->xmin;
newInput.ymax = input->ymax + this->ymin;
newInput.ymin = input->ymin + this->ymin;
return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
}
void CropImageOperation::determineResolution(unsigned int resolution[], unsigned int preferedResolution[])
{
NodeOperation::determineResolution(resolution, preferedResolution);
updateArea();
resolution[0] = this->xmax - this->xmin;
resolution[1] = this->ymax - this->ymin;
}
void CropImageOperation::executePixel(float *color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[])
{
this->inputOperation->read(color, (x + this->xmin), (y + this->ymin), sampler, inputBuffers);
}
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