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/*
* 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.
*
* Copyright 2011, Blender Foundation.
*/
#include "COM_ColorRampOperation.h"
#include "BKE_colorband.h"
namespace blender::compositor {
ColorRampOperation::ColorRampOperation()
{
this->addInputSocket(DataType::Value);
this->addOutputSocket(DataType::Color);
inputProgram_ = nullptr;
colorBand_ = nullptr;
this->flags.can_be_constant = true;
}
void ColorRampOperation::initExecution()
{
inputProgram_ = this->getInputSocketReader(0);
}
void ColorRampOperation::executePixelSampled(float output[4],
float x,
float y,
PixelSampler sampler)
{
float values[4];
inputProgram_->readSampled(values, x, y, sampler);
BKE_colorband_evaluate(colorBand_, values[0], output);
}
void ColorRampOperation::deinitExecution()
{
inputProgram_ = nullptr;
}
void ColorRampOperation::update_memory_buffer_partial(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs)
{
for (BuffersIterator<float> it = output->iterate_with(inputs, area); !it.is_end(); ++it) {
BKE_colorband_evaluate(colorBand_, *it.in(0), it.out);
}
}
} // namespace blender::compositor
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