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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2021 Blender Foundation. */
#include "COM_BufferOperation.h"
namespace blender::compositor {
BufferOperation::BufferOperation(MemoryBuffer *buffer, DataType data_type)
{
buffer_ = buffer;
inflated_buffer_ = nullptr;
set_canvas(buffer->get_rect());
add_output_socket(data_type);
flags_.is_constant_operation = buffer_->is_a_single_elem();
flags_.is_fullframe_operation = false;
}
const float *BufferOperation::get_constant_elem()
{
BLI_assert(buffer_->is_a_single_elem());
return buffer_->get_buffer();
}
void BufferOperation::init_execution()
{
if (buffer_->is_a_single_elem()) {
init_mutex();
}
}
void *BufferOperation::initialize_tile_data(rcti * /*rect*/)
{
if (buffer_->is_a_single_elem() == false) {
return buffer_;
}
lock_mutex();
if (!inflated_buffer_) {
inflated_buffer_ = buffer_->inflate();
}
unlock_mutex();
return inflated_buffer_;
}
void BufferOperation::deinit_execution()
{
if (buffer_->is_a_single_elem()) {
deinit_mutex();
}
delete inflated_buffer_;
}
void BufferOperation::execute_pixel_sampled(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_->read_bilinear(output, x, y);
break;
case PixelSampler::Bicubic:
/* No bicubic. Same implementation as ReadBufferOperation. */
buffer_->read_bilinear(output, x, y);
break;
}
}
void BufferOperation::execute_pixel_filtered(
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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