7a395e2e7f
The last good commit wasf57e4c5b98. After this one more fix was committed, this one is preserved as well:67bd678887.
50 lines
1.7 KiB
C++
50 lines
1.7 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_FlipOperation.h"
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namespace blender::compositor {
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FlipOperation::FlipOperation()
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{
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this->add_input_socket(DataType::Color, ResizeMode::None);
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this->add_output_socket(DataType::Color);
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this->set_canvas_input_index(0);
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flip_x_ = true;
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flip_y_ = false;
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flags_.can_be_constant = true;
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}
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void FlipOperation::get_area_of_interest(const int input_idx,
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const rcti & /*output_area*/,
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rcti &r_input_area)
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{
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BLI_assert(input_idx == 0);
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UNUSED_VARS_NDEBUG(input_idx);
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/* The full input image should be flipped to avoid cropping effects caused by previous scaling or
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* translating, or a smaller output area. */
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r_input_area = get_canvas();
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}
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void FlipOperation::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 MemoryBuffer *input_img = inputs[0];
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if (input_img->is_a_single_elem()) {
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copy_v4_v4(output->get_elem(0, 0), input_img->get_elem(0, 0));
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return;
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}
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const int input_offset_x = input_img->get_rect().xmin;
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const int input_offset_y = input_img->get_rect().ymin;
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for (BuffersIterator<float> it = output->iterate_with({}, area); !it.is_end(); ++it) {
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const int nx = flip_x_ ? (int(this->get_width()) - 1) - it.x : it.x;
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const int ny = flip_y_ ? (int(this->get_height()) - 1) - it.y : it.y;
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input_img->read_elem(input_offset_x + nx, input_offset_y + ny, it.out);
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}
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}
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} // namespace blender::compositor
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