98 lines
3.1 KiB
C++
98 lines
3.1 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_ChangeHSVOperation.h"
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namespace blender::compositor {
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ChangeHSVOperation::ChangeHSVOperation()
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{
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this->add_input_socket(DataType::Color);
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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::Color);
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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 ChangeHSVOperation::init_execution()
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{
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input_operation_ = get_input_socket_reader(0);
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hue_operation_ = get_input_socket_reader(1);
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saturation_operation_ = get_input_socket_reader(2);
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value_operation_ = get_input_socket_reader(3);
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}
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void ChangeHSVOperation::deinit_execution()
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{
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input_operation_ = nullptr;
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hue_operation_ = nullptr;
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saturation_operation_ = nullptr;
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value_operation_ = nullptr;
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}
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void ChangeHSVOperation::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 input_color1[4];
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float hue[4], saturation[4], value[4];
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input_operation_->read_sampled(input_color1, x, y, sampler);
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hue_operation_->read_sampled(hue, x, y, sampler);
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saturation_operation_->read_sampled(saturation, x, y, sampler);
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value_operation_->read_sampled(value, x, y, sampler);
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output[0] = input_color1[0] + (hue[0] - 0.5f);
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if (output[0] > 1.0f) {
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output[0] -= 1.0f;
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}
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else if (output[0] < 0.0f) {
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output[0] += 1.0f;
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}
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output[1] = input_color1[1] * saturation[0];
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output[2] = input_color1[2] * value[0];
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output[3] = input_color1[3];
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}
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void ChangeHSVOperation::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 *color = it.in(0);
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const float hue = *it.in(1);
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it.out[0] = color[0] + (hue - 0.5f);
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if (it.out[0] > 1.0f) {
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it.out[0] -= 1.0f;
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}
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else if (it.out[0] < 0.0f) {
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it.out[0] += 1.0f;
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}
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const float saturation = *it.in(2);
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const float value = *it.in(3);
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it.out[1] = color[1] * saturation;
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it.out[2] = color[2] * value;
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it.out[3] = color[3];
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}
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}
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} // namespace blender::compositor
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