94 lines
3.0 KiB
C++
94 lines
3.0 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_GlareThresholdOperation.h"
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#include "IMB_colormanagement.h"
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namespace blender::compositor {
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GlareThresholdOperation::GlareThresholdOperation()
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{
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this->add_input_socket(DataType::Color, ResizeMode::FitAny);
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this->add_output_socket(DataType::Color);
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input_program_ = nullptr;
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}
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void GlareThresholdOperation::determine_canvas(const rcti &preferred_area, rcti &r_area)
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{
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NodeOperation::determine_canvas(preferred_area, r_area);
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const int width = BLI_rcti_size_x(&r_area) / (1 << settings_->quality);
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const int height = BLI_rcti_size_y(&r_area) / (1 << settings_->quality);
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r_area.xmax = r_area.xmin + width;
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r_area.ymax = r_area.ymin + height;
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}
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void GlareThresholdOperation::init_execution()
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{
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input_program_ = this->get_input_socket_reader(0);
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}
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void GlareThresholdOperation::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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const float threshold = settings_->threshold;
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input_program_->read_sampled(output, x, y, sampler);
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if (IMB_colormanagement_get_luminance(output) >= threshold) {
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output[0] -= threshold;
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output[1] -= threshold;
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output[2] -= threshold;
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output[0] = MAX2(output[0], 0.0f);
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output[1] = MAX2(output[1], 0.0f);
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output[2] = MAX2(output[2], 0.0f);
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}
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else {
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zero_v3(output);
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}
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}
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void GlareThresholdOperation::deinit_execution()
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{
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input_program_ = nullptr;
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}
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void GlareThresholdOperation::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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const float threshold = settings_->threshold;
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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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if (IMB_colormanagement_get_luminance(color) >= threshold) {
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it.out[0] = color[0] - threshold;
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it.out[1] = color[1] - threshold;
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it.out[2] = color[2] - threshold;
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CLAMP3_MIN(it.out, 0.0f);
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}
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else {
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zero_v3(it.out);
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}
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}
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}
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} // namespace blender::compositor
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