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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright 2021, Blender Foundation.
*/
#include "COM_BufferOperation.h"
namespace blender::compositor {
BufferOperation::BufferOperation(MemoryBuffer *buffer, DataType data_type)
{
buffer_ = buffer;
/* TODO: Implement a MemoryBuffer get_size() method returning a Size2d type. Shorten following
* code to: set_resolution(buffer.get_size()) */
unsigned int resolution[2];
resolution[0] = buffer->getWidth();
resolution[1] = buffer->getHeight();
setResolution(resolution);
addOutputSocket(data_type);
}
void *BufferOperation::initializeTileData(rcti * /*rect*/)
{
return buffer_;
}
void BufferOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
{
switch (sampler) {
case PixelSampler::Nearest:
buffer_->read(output, x, y);
break;
case PixelSampler::Bilinear:
default:
buffer_->readBilinear(output, x, y);
break;
case PixelSampler::Bicubic:
/* No bicubic. Same implementation as ReadBufferOperation. */
buffer_->readBilinear(output, x, y);
break;
}
}
void BufferOperation::executePixelFiltered(
float output[4], float x, float y, float dx[2], float dy[2])
{
const float uv[2] = {x, y};
const float deriv[2][2] = {{dx[0], dx[1]}, {dy[0], dy[1]}};
buffer_->readEWA(output, uv, deriv);
}
} // namespace blender::compositor
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