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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:
* Dalai Felinto
*/
#include "COM_ConvertRGBToYCCOperation.h"
#include "BLI_math_color.h"
ConvertRGBToYCCOperation::ConvertRGBToYCCOperation() : NodeOperation()
{
this->addInputSocket(COM_DT_COLOR);
this->addOutputSocket(COM_DT_COLOR);
this->m_inputOperation = NULL;
}
void ConvertRGBToYCCOperation::initExecution()
{
this->m_inputOperation = this->getInputSocketReader(0);
}
void ConvertRGBToYCCOperation::setMode(int mode)
{
switch (mode) {
case 1:
this->m_mode = BLI_YCC_ITU_BT709;
break;
case 2:
this->m_mode = BLI_YCC_JFIF_0_255;
break;
case 0:
default:
this->m_mode = BLI_YCC_ITU_BT601;
break;
}
}
void ConvertRGBToYCCOperation::executePixel(float *outputValue, float x, float y, PixelSampler sampler)
{
float inputColor[4];
float color[3];
this->m_inputOperation->read(inputColor, x, y, sampler);
rgb_to_ycc(inputColor[0], inputColor[1], inputColor[2], &color[0], &color[1], &color[2], this->m_mode);
/* divided by 255 to normalize for viewing in */
/* R,G,B --> Y,Cb,Cr */
mul_v3_v3fl(outputValue, color, 1.0f / 255.0f);
outputValue[3] = inputColor[3];
}
void ConvertRGBToYCCOperation::deinitExecution()
{
this->m_inputOperation = NULL;
}
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