76377f0176
This is a code refactor in preparation of supporting canvas
compositing. See {D12466}.
No functional changes, all canvases are at (0,0) position matching
tiled implementation.
Differential Revision: https://developer.blender.org/D12465
102 lines
3.2 KiB
C++
102 lines
3.2 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_InvertOperation.h"
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namespace blender::compositor {
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InvertOperation::InvertOperation()
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{
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this->addInputSocket(DataType::Value);
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this->addInputSocket(DataType::Color);
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this->addOutputSocket(DataType::Color);
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this->m_inputValueProgram = nullptr;
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this->m_inputColorProgram = nullptr;
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this->m_color = true;
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this->m_alpha = false;
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set_canvas_input_index(1);
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this->flags.can_be_constant = true;
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}
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void InvertOperation::initExecution()
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{
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this->m_inputValueProgram = this->getInputSocketReader(0);
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this->m_inputColorProgram = this->getInputSocketReader(1);
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}
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void InvertOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
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{
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float inputValue[4];
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float inputColor[4];
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this->m_inputValueProgram->readSampled(inputValue, x, y, sampler);
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this->m_inputColorProgram->readSampled(inputColor, x, y, sampler);
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const float value = inputValue[0];
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const float invertedValue = 1.0f - value;
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if (this->m_color) {
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output[0] = (1.0f - inputColor[0]) * value + inputColor[0] * invertedValue;
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output[1] = (1.0f - inputColor[1]) * value + inputColor[1] * invertedValue;
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output[2] = (1.0f - inputColor[2]) * value + inputColor[2] * invertedValue;
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}
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else {
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copy_v3_v3(output, inputColor);
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}
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if (this->m_alpha) {
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output[3] = (1.0f - inputColor[3]) * value + inputColor[3] * invertedValue;
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}
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else {
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output[3] = inputColor[3];
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}
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}
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void InvertOperation::deinitExecution()
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{
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this->m_inputValueProgram = nullptr;
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this->m_inputColorProgram = nullptr;
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}
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void InvertOperation::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 value = *it.in(0);
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const float inverted_value = 1.0f - value;
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const float *color = it.in(1);
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if (this->m_color) {
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it.out[0] = (1.0f - color[0]) * value + color[0] * inverted_value;
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it.out[1] = (1.0f - color[1]) * value + color[1] * inverted_value;
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it.out[2] = (1.0f - color[2]) * value + color[2] * inverted_value;
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}
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else {
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copy_v3_v3(it.out, color);
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}
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if (this->m_alpha) {
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it.out[3] = (1.0f - color[3]) * value + color[3] * inverted_value;
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}
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else {
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it.out[3] = color[3];
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}
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}
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}
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} // namespace blender::compositor
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