Campbell Barton
c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
108 lines
3.1 KiB
C++
108 lines
3.1 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2011 Blender Foundation. */
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#include <cmath>
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#include "COM_WrapOperation.h"
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namespace blender::compositor {
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WrapOperation::WrapOperation(DataType datatype) : ReadBufferOperation(datatype)
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{
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wrapping_type_ = CMP_NODE_WRAP_NONE;
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}
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inline float WrapOperation::get_wrapped_original_xpos(float x)
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{
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if (this->get_width() == 0) {
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return 0;
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}
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while (x < 0) {
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x += this->get_width();
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}
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return fmodf(x, this->get_width());
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}
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inline float WrapOperation::get_wrapped_original_ypos(float y)
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{
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if (this->get_height() == 0) {
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return 0;
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}
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while (y < 0) {
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y += this->get_height();
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}
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return fmodf(y, this->get_height());
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}
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void WrapOperation::execute_pixel_sampled(float output[4], float x, float y, PixelSampler sampler)
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{
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float nx, ny;
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nx = x;
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ny = y;
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MemoryBufferExtend extend_x = MemoryBufferExtend::Clip, extend_y = MemoryBufferExtend::Clip;
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switch (wrapping_type_) {
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case CMP_NODE_WRAP_NONE:
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/* Intentionally empty, original_xpos and original_ypos have been set before. */
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break;
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case CMP_NODE_WRAP_X:
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/* Wrap only on the x-axis. */
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nx = this->get_wrapped_original_xpos(x);
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extend_x = MemoryBufferExtend::Repeat;
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break;
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case CMP_NODE_WRAP_Y:
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/* Wrap only on the y-axis. */
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ny = this->get_wrapped_original_ypos(y);
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extend_y = MemoryBufferExtend::Repeat;
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break;
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case CMP_NODE_WRAP_XY:
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/* Wrap on both. */
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nx = this->get_wrapped_original_xpos(x);
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ny = this->get_wrapped_original_ypos(y);
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extend_x = MemoryBufferExtend::Repeat;
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extend_y = MemoryBufferExtend::Repeat;
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break;
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}
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execute_pixel_extend(output, nx, ny, sampler, extend_x, extend_y);
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}
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bool WrapOperation::determine_depending_area_of_interest(rcti *input,
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ReadBufferOperation *read_operation,
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rcti *output)
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{
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rcti new_input;
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new_input.xmin = input->xmin;
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new_input.xmax = input->xmax;
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new_input.ymin = input->ymin;
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new_input.ymax = input->ymax;
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if (ELEM(wrapping_type_, CMP_NODE_WRAP_X, CMP_NODE_WRAP_XY)) {
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/* Wrap only on the x-axis if tile is wrapping. */
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new_input.xmin = get_wrapped_original_xpos(input->xmin);
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new_input.xmax = roundf(get_wrapped_original_xpos(input->xmax));
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if (new_input.xmin >= new_input.xmax) {
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new_input.xmin = 0;
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new_input.xmax = this->get_width();
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}
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}
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if (ELEM(wrapping_type_, CMP_NODE_WRAP_Y, CMP_NODE_WRAP_XY)) {
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/* Wrap only on the y-axis if tile is wrapping. */
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new_input.ymin = get_wrapped_original_ypos(input->ymin);
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new_input.ymax = roundf(get_wrapped_original_ypos(input->ymax));
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if (new_input.ymin >= new_input.ymax) {
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new_input.ymin = 0;
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new_input.ymax = this->get_height();
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}
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}
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return ReadBufferOperation::determine_depending_area_of_interest(
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&new_input, read_operation, output);
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}
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void WrapOperation::set_wrapping(int wrapping_type)
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{
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wrapping_type_ = wrapping_type;
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}
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} // namespace blender::compositor
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