e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
134 lines
3.7 KiB
C++
134 lines
3.7 KiB
C++
/* SPDX-FileCopyrightText: 2012 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "COM_MapRangeOperation.h"
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namespace blender::compositor {
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MapRangeOperation::MapRangeOperation()
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{
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this->add_input_socket(DataType::Value);
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this->add_input_socket(DataType::Value);
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this->add_input_socket(DataType::Value);
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this->add_input_socket(DataType::Value);
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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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use_clamp_ = false;
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flags_.can_be_constant = true;
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}
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void MapRangeOperation::init_execution()
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{
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input_operation_ = this->get_input_socket_reader(0);
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source_min_operation_ = this->get_input_socket_reader(1);
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source_max_operation_ = this->get_input_socket_reader(2);
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dest_min_operation_ = this->get_input_socket_reader(3);
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dest_max_operation_ = this->get_input_socket_reader(4);
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}
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/* The code below assumes all data is inside range +- this, and that input buffer is single channel
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*/
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#define BLENDER_ZMAX 10000.0f
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void MapRangeOperation::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 inputs[8]; /* includes the 5 inputs + 3 pads */
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float value;
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float source_min, source_max;
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float dest_min, dest_max;
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input_operation_->read_sampled(inputs, x, y, sampler);
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source_min_operation_->read_sampled(inputs + 1, x, y, sampler);
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source_max_operation_->read_sampled(inputs + 2, x, y, sampler);
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dest_min_operation_->read_sampled(inputs + 3, x, y, sampler);
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dest_max_operation_->read_sampled(inputs + 4, x, y, sampler);
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value = inputs[0];
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source_min = inputs[1];
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source_max = inputs[2];
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dest_min = inputs[3];
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dest_max = inputs[4];
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if (fabsf(source_max - source_min) < 1e-6f) {
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output[0] = 0.0f;
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return;
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}
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if (value >= -BLENDER_ZMAX && value <= BLENDER_ZMAX) {
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value = (value - source_min) / (source_max - source_min);
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value = dest_min + value * (dest_max - dest_min);
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}
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else if (value > BLENDER_ZMAX) {
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value = dest_max;
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}
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else {
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value = dest_min;
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}
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if (use_clamp_) {
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if (dest_max > dest_min) {
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CLAMP(value, dest_min, dest_max);
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}
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else {
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CLAMP(value, dest_max, dest_min);
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}
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}
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output[0] = value;
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}
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void MapRangeOperation::deinit_execution()
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{
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input_operation_ = nullptr;
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source_min_operation_ = nullptr;
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source_max_operation_ = nullptr;
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dest_min_operation_ = nullptr;
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dest_max_operation_ = nullptr;
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}
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void MapRangeOperation::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 source_min = *it.in(1);
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const float source_max = *it.in(2);
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if (fabsf(source_max - source_min) < 1e-6f) {
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it.out[0] = 0.0f;
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continue;
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}
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float value = *it.in(0);
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const float dest_min = *it.in(3);
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const float dest_max = *it.in(4);
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if (value >= -BLENDER_ZMAX && value <= BLENDER_ZMAX) {
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value = (value - source_min) / (source_max - source_min);
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value = dest_min + value * (dest_max - dest_min);
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}
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else if (value > BLENDER_ZMAX) {
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value = dest_max;
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}
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else {
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value = dest_min;
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}
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if (use_clamp_) {
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if (dest_max > dest_min) {
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CLAMP(value, dest_min, dest_max);
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}
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else {
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CLAMP(value, dest_max, dest_min);
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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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