Hans Goudey
91d9f46aec
Push the const usage a bit further for compositor nodes, so that they are more explicit about not modifying original nodes from the editor. Differential Revision: https://developer.blender.org/D15822
73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2011 Blender Foundation. */
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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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const 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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const 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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