7a395e2e7f
The last good commit wasf57e4c5b98. After this one more fix was committed, this one is preserved as well:67bd678887.
64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
/* SPDX-FileCopyrightText: 2018 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#include "COM_CryptomatteOperation.h"
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namespace blender::compositor {
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CryptomatteOperation::CryptomatteOperation(size_t num_inputs)
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{
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inputs.resize(num_inputs);
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for (size_t i = 0; i < num_inputs; i++) {
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this->add_input_socket(DataType::Color);
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}
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this->add_output_socket(DataType::Color);
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flags_.can_be_constant = true;
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}
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void CryptomatteOperation::init_execution()
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{
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for (size_t i = 0; i < inputs.size(); i++) {
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inputs[i] = this->get_input_socket_reader(i);
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}
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}
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void CryptomatteOperation::add_object_index(float object_index)
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{
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if (object_index != 0.0f) {
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object_index_.append(object_index);
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}
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}
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void CryptomatteOperation::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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zero_v4(it.out);
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for (int i = 0; i < it.get_num_inputs(); i++) {
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const float *input = it.in(i);
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if (i == 0) {
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/* Write the front-most object as false color for picking. */
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it.out[0] = input[0];
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uint32_t m3hash;
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::memcpy(&m3hash, &input[0], sizeof(uint32_t));
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/* Since the red channel is likely to be out of display range,
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* setting green and blue gives more meaningful images. */
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it.out[1] = (float(m3hash << 8) / float(UINT32_MAX));
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it.out[2] = (float(m3hash << 16) / float(UINT32_MAX));
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}
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for (const float hash : object_index_) {
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if (input[0] == hash) {
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it.out[3] += input[1];
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}
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if (input[2] == hash) {
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it.out[3] += input[3];
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}
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}
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}
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}
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}
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} // namespace blender::compositor
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