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/*
* Copyright 2017, Blender Foundation.
*
* 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.
*
* Contributor: IRIE Shinsuke
*/
#pragma once
#include "COM_NodeOperation.h"
namespace blender::compositor {
/*-----------------------------------------------------------------------------*/
/* Edge Detection (First Pass) */
class SMAAEdgeDetectionOperation : public NodeOperation {
protected:
SocketReader *m_imageReader;
SocketReader *m_valueReader;
float m_threshold;
float m_contrast_limit;
public:
SMAAEdgeDetectionOperation();
/**
* the inner loop of this program
*/
virtual void executePixel(float output[4], int x, int y, void *data) override;
/**
* Initialize the execution
*/
void initExecution() override;
/**
* Deinitialize the execution
*/
void deinitExecution() override;
void setThreshold(float threshold);
void setLocalContrastAdaptationFactor(float factor);
bool determineDependingAreaOfInterest(rcti *input,
ReadBufferOperation *readOperation,
rcti *output) override;
};
/*-----------------------------------------------------------------------------*/
/* Blending Weight Calculation (Second Pass) */
class SMAABlendingWeightCalculationOperation : public NodeOperation {
private:
SocketReader *m_imageReader;
int m_corner_rounding;
public:
SMAABlendingWeightCalculationOperation();
/**
* the inner loop of this program
*/
void executePixel(float output[4], int x, int y, void *data) override;
/**
* Initialize the execution
*/
void initExecution() override;
void *initializeTileData(rcti *rect) override;
/**
* Deinitialize the execution
*/
void deinitExecution() override;
void setCornerRounding(float rounding);
bool determineDependingAreaOfInterest(rcti *input,
ReadBufferOperation *readOperation,
rcti *output) override;
private:
/* Diagonal Search Functions */
int searchDiag1(int x, int y, int dir, bool *found);
int searchDiag2(int x, int y, int dir, bool *found);
void calculateDiagWeights(int x, int y, const float edges[2], float weights[2]);
bool isVerticalSearchUnneeded(int x, int y);
/* Horizontal/Vertical Search Functions */
int searchXLeft(int x, int y);
int searchXRight(int x, int y);
int searchYUp(int x, int y);
int searchYDown(int x, int y);
/* Corner Detection Functions */
void detectHorizontalCornerPattern(float weights[2], int left, int right, int y, int d1, int d2);
void detectVerticalCornerPattern(float weights[2], int x, int top, int bottom, int d1, int d2);
};
/*-----------------------------------------------------------------------------*/
/* Neighborhood Blending (Third Pass) */
class SMAANeighborhoodBlendingOperation : public NodeOperation {
private:
SocketReader *m_image1Reader;
SocketReader *m_image2Reader;
public:
SMAANeighborhoodBlendingOperation();
/**
* the inner loop of this program
*/
void executePixel(float output[4], int x, int y, void *data) override;
/**
* Initialize the execution
*/
void initExecution() override;
void *initializeTileData(rcti *rect) override;
/**
* Deinitialize the execution
*/
void deinitExecution() override;
bool determineDependingAreaOfInterest(rcti *input,
ReadBufferOperation *readOperation,
rcti *output) override;
};
} // namespace blender::compositor
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