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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->m_inputOperation = NULL;
this->m_settings = NULL;
}
void CropBaseOperation::updateArea()
{
SocketReader *inputReference = this->getInputSocketReader(0);
float width = inputReference->getWidth();
float height = inputReference->getHeight();
if (width > 0.0f && height > 0.0f) {
if (this->m_relative) {
this->m_settings->x1 = width * this->m_settings->fac_x1;
this->m_settings->x2 = width * this->m_settings->fac_x2;
this->m_settings->y1 = height * this->m_settings->fac_y1;
this->m_settings->y2 = height * this->m_settings->fac_y2;
}
if (width <= this->m_settings->x1 + 1)
this->m_settings->x1 = width - 1;
if (height <= this->m_settings->y1 + 1)
this->m_settings->y1 = height - 1;
if (width <= this->m_settings->x2 + 1)
this->m_settings->x2 = width - 1;
if (height <= this->m_settings->y2 + 1)
this->m_settings->y2 = height - 1;
this->m_xmax = max(this->m_settings->x1, this->m_settings->x2) + 1;
this->m_xmin = min(this->m_settings->x1, this->m_settings->x2);
this->m_ymax = max(this->m_settings->y1, this->m_settings->y2) + 1;
this->m_ymin = min(this->m_settings->y1, this->m_settings->y2);
}
else {
this->m_xmax = 0;
this->m_xmin = 0;
this->m_ymax = 0;
this->m_ymin = 0;
}
}
void CropBaseOperation::initExecution()
{
this->m_inputOperation = this->getInputSocketReader(0);
updateArea();
}
void CropBaseOperation::deinitExecution()
{
this->m_inputOperation = NULL;
}
CropOperation::CropOperation() : CropBaseOperation()
{
/* pass */
}
void CropOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
{
if ((x < this->m_xmax && x >= this->m_xmin) && (y < this->m_ymax && y >= this->m_ymin)) {
this->m_inputOperation->readSampled(output, x, y, sampler);
}
else {
zero_v4(output);
}
}
CropImageOperation::CropImageOperation() : CropBaseOperation()
{
/* pass */
}
bool CropImageOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
{
rcti newInput;
newInput.xmax = input->xmax + this->m_xmin;
newInput.xmin = input->xmin + this->m_xmin;
newInput.ymax = input->ymax + this->m_ymin;
newInput.ymin = input->ymin + this->m_ymin;
return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
}
void CropImageOperation::determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2])
{
NodeOperation::determineResolution(resolution, preferredResolution);
updateArea();
resolution[0] = this->m_xmax - this->m_xmin;
resolution[1] = this->m_ymax - this->m_ymin;
}
void CropImageOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
{
if (x >= 0 && x < getWidth() && y >= 0 && y < getHeight()) {
this->m_inputOperation->readSampled(output, (x + this->m_xmin), (y + this->m_ymin), sampler);
}
else {
zero_v4(output);
}
}
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