88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright 2011, Blender Foundation.
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*/
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#include "COM_MapValueOperation.h"
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namespace blender::compositor {
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MapValueOperation::MapValueOperation()
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{
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this->add_input_socket(DataType::Value);
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this->add_output_socket(DataType::Value);
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input_operation_ = nullptr;
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flags_.can_be_constant = true;
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}
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void MapValueOperation::init_execution()
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{
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input_operation_ = this->get_input_socket_reader(0);
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}
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void MapValueOperation::execute_pixel_sampled(float output[4],
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float x,
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float y,
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PixelSampler sampler)
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{
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float src[4];
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input_operation_->read_sampled(src, x, y, sampler);
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TexMapping *texmap = settings_;
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float value = (src[0] + texmap->loc[0]) * texmap->size[0];
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if (texmap->flag & TEXMAP_CLIP_MIN) {
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if (value < texmap->min[0]) {
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value = texmap->min[0];
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}
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}
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if (texmap->flag & TEXMAP_CLIP_MAX) {
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if (value > texmap->max[0]) {
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value = texmap->max[0];
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}
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}
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output[0] = value;
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}
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void MapValueOperation::deinit_execution()
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{
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input_operation_ = nullptr;
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}
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void MapValueOperation::update_memory_buffer_partial(MemoryBuffer *output,
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const rcti &area,
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Span<MemoryBuffer *> inputs)
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{
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for (BuffersIterator<float> it = output->iterate_with(inputs, area); !it.is_end(); ++it) {
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const float input = *it.in(0);
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TexMapping *texmap = settings_;
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float value = (input + texmap->loc[0]) * texmap->size[0];
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if (texmap->flag & TEXMAP_CLIP_MIN) {
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if (value < texmap->min[0]) {
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value = texmap->min[0];
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}
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}
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if (texmap->flag & TEXMAP_CLIP_MAX) {
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if (value > texmap->max[0]) {
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value = texmap->max[0];
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}
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}
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it.out[0] = value;
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}
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}
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} // namespace blender::compositor
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