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.
126 lines
3.7 KiB
C++
126 lines
3.7 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_ReadBufferOperation.h"
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#include "COM_ExecutionGroup.h"
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#include "COM_WriteBufferOperation.h"
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namespace blender::compositor {
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ReadBufferOperation::ReadBufferOperation(DataType datatype)
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{
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this->add_output_socket(datatype);
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single_value_ = false;
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offset_ = 0;
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buffer_ = nullptr;
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flags_.is_read_buffer_operation = true;
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}
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void *ReadBufferOperation::initialize_tile_data(rcti * /*rect*/)
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{
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return buffer_;
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}
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void ReadBufferOperation::determine_canvas(const rcti &preferred_area, rcti &r_area)
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{
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if (memory_proxy_ != nullptr) {
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WriteBufferOperation *operation = memory_proxy_->get_write_buffer_operation();
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operation->determine_canvas(preferred_area, r_area);
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operation->set_canvas(r_area);
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/** \todo may not occur! But does with blur node. */
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if (memory_proxy_->get_executor()) {
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uint resolution[2] = {uint(BLI_rcti_size_x(&r_area)), uint(BLI_rcti_size_y(&r_area))};
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memory_proxy_->get_executor()->set_resolution(resolution);
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}
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single_value_ = operation->is_single_value();
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}
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}
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void ReadBufferOperation::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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if (single_value_) {
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/* write buffer has a single value stored at (0,0) */
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buffer_->read(output, 0, 0);
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}
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else {
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switch (sampler) {
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case PixelSampler::Nearest:
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buffer_->read(output, x, y);
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break;
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case PixelSampler::Bilinear:
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default:
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buffer_->read_bilinear(output, x, y);
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break;
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case PixelSampler::Bicubic:
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buffer_->read_bilinear(output, x, y);
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break;
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}
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}
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}
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void ReadBufferOperation::execute_pixel_extend(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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MemoryBufferExtend extend_x,
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MemoryBufferExtend extend_y)
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{
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if (single_value_) {
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/* write buffer has a single value stored at (0,0) */
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buffer_->read(output, 0, 0);
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}
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else if (sampler == PixelSampler::Nearest) {
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buffer_->read(output, x, y, extend_x, extend_y);
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}
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else {
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buffer_->read_bilinear(output, x, y, extend_x, extend_y);
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}
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}
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void ReadBufferOperation::execute_pixel_filtered(
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float output[4], float x, float y, float dx[2], float dy[2])
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{
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if (single_value_) {
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/* write buffer has a single value stored at (0,0) */
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buffer_->read(output, 0, 0);
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}
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else {
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const float uv[2] = {x, y};
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const float deriv[2][2] = {{dx[0], dx[1]}, {dy[0], dy[1]}};
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buffer_->readEWA(output, uv, deriv);
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}
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}
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bool ReadBufferOperation::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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if (this == read_operation) {
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BLI_rcti_init(output, input->xmin, input->xmax, input->ymin, input->ymax);
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return true;
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}
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return false;
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}
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void ReadBufferOperation::read_resolution_from_write_buffer()
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{
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if (memory_proxy_ != nullptr) {
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WriteBufferOperation *operation = memory_proxy_->get_write_buffer_operation();
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this->set_width(operation->get_width());
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this->set_height(operation->get_height());
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}
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}
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void ReadBufferOperation::update_memory_buffer()
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{
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buffer_ = this->get_memory_proxy()->get_buffer();
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}
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} // namespace blender::compositor
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