89f7dc9cbe
At 0% split ratio, the result of the split node still shows the first row or the first column. Pull Request: https://projects.blender.org/blender/blender/pulls/115844
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
/* SPDX-FileCopyrightText: 2011 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "COM_SplitOperation.h"
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namespace blender::compositor {
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SplitOperation::SplitOperation()
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{
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this->add_input_socket(DataType::Color);
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this->add_input_socket(DataType::Color);
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this->add_output_socket(DataType::Color);
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image1Input_ = nullptr;
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image2Input_ = nullptr;
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flags_.can_be_constant = true;
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}
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void SplitOperation::init_execution()
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{
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/* When initializing the tree during initial load the width and height can be zero. */
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image1Input_ = get_input_socket_reader(0);
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image2Input_ = get_input_socket_reader(1);
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}
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void SplitOperation::deinit_execution()
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{
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image1Input_ = nullptr;
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image2Input_ = nullptr;
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}
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void SplitOperation::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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int perc = x_split_ ? split_percentage_ * this->get_width() / 100.0f :
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split_percentage_ * this->get_height() / 100.0f;
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bool image1 = x_split_ ? x >= perc : y >= perc;
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if (image1) {
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image1Input_->read_sampled(output, x, y, PixelSampler::Nearest);
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}
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else {
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image2Input_->read_sampled(output, x, y, PixelSampler::Nearest);
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}
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}
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void SplitOperation::determine_canvas(const rcti &preferred_area, rcti &r_area)
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{
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rcti unused_area = COM_AREA_NONE;
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const bool determined = this->get_input_socket(0)->determine_canvas(COM_AREA_NONE, unused_area);
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this->set_canvas_input_index(determined ? 0 : 1);
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NodeOperation::determine_canvas(preferred_area, r_area);
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}
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void SplitOperation::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 int percent = x_split_ ? split_percentage_ * this->get_width() / 100.0f :
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split_percentage_ * this->get_height() / 100.0f;
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const size_t elem_bytes = COM_data_type_bytes_len(get_output_socket()->get_data_type());
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for (BuffersIterator<float> it = output->iterate_with(inputs, area); !it.is_end(); ++it) {
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const bool is_image1 = x_split_ ? it.x >= percent : it.y >= percent;
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memcpy(it.out, it.in(is_image1 ? 0 : 1), elem_bytes);
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}
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}
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} // namespace blender::compositor
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