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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2011 Blender Foundation. */
#include "COM_SetAlphaReplaceOperation.h"
namespace blender::compositor {
SetAlphaReplaceOperation::SetAlphaReplaceOperation()
{
this->add_input_socket(DataType::Color);
this->add_input_socket(DataType::Value);
this->add_output_socket(DataType::Color);
input_color_ = nullptr;
input_alpha_ = nullptr;
flags_.can_be_constant = true;
}
void SetAlphaReplaceOperation::init_execution()
{
input_color_ = get_input_socket_reader(0);
input_alpha_ = get_input_socket_reader(1);
}
void SetAlphaReplaceOperation::execute_pixel_sampled(float output[4],
float x,
float y,
PixelSampler sampler)
{
float alpha_input[4];
input_color_->read_sampled(output, x, y, sampler);
input_alpha_->read_sampled(alpha_input, x, y, sampler);
output[3] = alpha_input[0];
}
void SetAlphaReplaceOperation::deinit_execution()
{
input_color_ = nullptr;
input_alpha_ = 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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