e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
109 lines
3.1 KiB
C++
109 lines
3.1 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 <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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