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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.
*/
#pragma once
#include "COM_BlurBaseOperation.h"
namespace blender::compositor {
class GaussianAlphaBlurBaseOperation : public BlurBaseOperation {
protected:
float *gausstab_;
float *distbuf_inv_;
int falloff_; /* Falloff for #distbuf_inv. */
bool do_subtract_;
int filtersize_;
float rad_;
eDimension dimension_;
public:
GaussianAlphaBlurBaseOperation(eDimension dim);
virtual void init_data() override;
virtual void init_execution() override;
virtual void deinit_execution() override;
void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) final;
void update_memory_buffer_partial(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs) final;
/**
* Set subtract for Dilate/Erode functionality
*/
void set_subtract(bool subtract)
{
do_subtract_ = subtract;
}
void set_falloff(int falloff)
{
falloff_ = falloff;
}
BLI_INLINE float finv_test(const float f, const bool test)
{
return (LIKELY(test == false)) ? f : 1.0f - f;
}
};
} // namespace blender::compositor
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