Manuel Castilla
ecb8a574c7
And move unneeded includes in frequently used headers to source files. Slightly reduces compile time.
130 lines
4.0 KiB
C++
130 lines
4.0 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_DifferenceMatteOperation.h"
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namespace blender::compositor {
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DifferenceMatteOperation::DifferenceMatteOperation()
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{
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addInputSocket(DataType::Color);
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addInputSocket(DataType::Color);
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addOutputSocket(DataType::Value);
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this->m_inputImage1Program = nullptr;
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this->m_inputImage2Program = nullptr;
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flags.can_be_constant = true;
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}
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void DifferenceMatteOperation::initExecution()
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{
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this->m_inputImage1Program = this->getInputSocketReader(0);
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this->m_inputImage2Program = this->getInputSocketReader(1);
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}
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void DifferenceMatteOperation::deinitExecution()
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{
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this->m_inputImage1Program = nullptr;
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this->m_inputImage2Program = nullptr;
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}
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void DifferenceMatteOperation::executePixelSampled(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 inColor1[4];
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float inColor2[4];
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const float tolerance = this->m_settings->t1;
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const float falloff = this->m_settings->t2;
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float difference;
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float alpha;
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this->m_inputImage1Program->readSampled(inColor1, x, y, sampler);
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this->m_inputImage2Program->readSampled(inColor2, x, y, sampler);
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difference = (fabsf(inColor2[0] - inColor1[0]) + fabsf(inColor2[1] - inColor1[1]) +
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fabsf(inColor2[2] - inColor1[2]));
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/* average together the distances */
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difference = difference / 3.0f;
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/* make 100% transparent */
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if (difference <= tolerance) {
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output[0] = 0.0f;
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}
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/* In the falloff region, make partially transparent. */
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else if (difference <= falloff + tolerance) {
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difference = difference - tolerance;
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alpha = difference / falloff;
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/* Only change if more transparent than before. */
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if (alpha < inColor1[3]) {
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output[0] = alpha;
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}
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else { /* leave as before */
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output[0] = inColor1[3];
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}
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}
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else {
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/* foreground object */
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output[0] = inColor1[3];
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}
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}
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void DifferenceMatteOperation::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 *color1 = it.in(0);
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const float *color2 = it.in(1);
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float difference = (fabsf(color2[0] - color1[0]) + fabsf(color2[1] - color1[1]) +
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fabsf(color2[2] - color1[2]));
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/* Average together the distances. */
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difference = difference / 3.0f;
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const float tolerance = m_settings->t1;
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const float falloff = m_settings->t2;
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/* Make 100% transparent. */
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if (difference <= tolerance) {
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it.out[0] = 0.0f;
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}
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/* In the falloff region, make partially transparent. */
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else if (difference <= falloff + tolerance) {
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difference = difference - tolerance;
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const float alpha = difference / falloff;
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/* Only change if more transparent than before. */
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if (alpha < color1[3]) {
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it.out[0] = alpha;
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}
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else { /* Leave as before. */
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it.out[0] = color1[3];
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}
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}
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else {
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/* Foreground object. */
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it.out[0] = color1[3];
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}
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}
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}
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} // namespace blender::compositor
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