Manuel Castilla
76377f0176
This is a code refactor in preparation of supporting canvas
compositing. See {D12466}.
No functional changes, all canvases are at (0,0) position matching
tiled implementation.
Differential Revision: https://developer.blender.org/D12465
94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright 2021, Blender Foundation.
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*/
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#include "COM_BufferOperation.h"
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namespace blender::compositor {
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BufferOperation::BufferOperation(MemoryBuffer *buffer, DataType data_type)
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{
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buffer_ = buffer;
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inflated_buffer_ = nullptr;
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set_canvas(buffer->get_rect());
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addOutputSocket(data_type);
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flags.is_constant_operation = buffer_->is_a_single_elem();
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flags.is_fullframe_operation = false;
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}
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const float *BufferOperation::get_constant_elem()
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{
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BLI_assert(buffer_->is_a_single_elem());
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return buffer_->getBuffer();
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}
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void BufferOperation::initExecution()
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{
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if (buffer_->is_a_single_elem()) {
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initMutex();
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}
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}
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void *BufferOperation::initializeTileData(rcti * /*rect*/)
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{
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if (buffer_->is_a_single_elem() == false) {
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return buffer_;
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}
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lockMutex();
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if (!inflated_buffer_) {
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inflated_buffer_ = buffer_->inflate();
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}
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unlockMutex();
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return inflated_buffer_;
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}
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void BufferOperation::deinitExecution()
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{
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if (buffer_->is_a_single_elem()) {
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deinitMutex();
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}
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delete inflated_buffer_;
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}
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void BufferOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
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{
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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_->readBilinear(output, x, y);
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break;
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case PixelSampler::Bicubic:
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/* No bicubic. Same implementation as ReadBufferOperation. */
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buffer_->readBilinear(output, x, y);
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break;
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}
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}
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void BufferOperation::executePixelFiltered(
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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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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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} // namespace blender::compositor
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