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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_SetAlphaReplaceOperation.h"
namespace blender::compositor {
SetAlphaReplaceOperation::SetAlphaReplaceOperation()
{
this->addInputSocket(DataType::Color);
this->addInputSocket(DataType::Value);
this->addOutputSocket(DataType::Color);
inputColor_ = nullptr;
inputAlpha_ = nullptr;
this->flags.can_be_constant = true;
}
void SetAlphaReplaceOperation::initExecution()
{
inputColor_ = getInputSocketReader(0);
inputAlpha_ = getInputSocketReader(1);
}
void SetAlphaReplaceOperation::executePixelSampled(float output[4],
float x,
float y,
PixelSampler sampler)
{
float alpha_input[4];
inputColor_->readSampled(output, x, y, sampler);
inputAlpha_->readSampled(alpha_input, x, y, sampler);
output[3] = alpha_input[0];
}
void SetAlphaReplaceOperation::deinitExecution()
{
inputColor_ = nullptr;
inputAlpha_ = nullptr;
}
void SetAlphaReplaceOperation::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) {
const float *color = it.in(0);
const float alpha = *it.in(1);
copy_v3_v3(it.out, color);
it.out[3] = alpha;
}
}
} // namespace blender::compositor
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