image.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2015-2016 Mario Luzeiro <[email protected]>
 * Copyright (C) 2015-2020 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */

#ifndef IMAGE_H
#define IMAGE_H

#include <wx/string.h>

enum class IMAGE_OP
{
 RAW,
 ADD,
 SUB,
 DIF,
 MUL,
 AND,
 OR,
 XOR,
 BLEND50,
 MIN,
 MAX
};


enum class IMAGE_WRAP
{
 ZERO, 
 CLAMP, 
 WRAP 
};


enum class IMAGE_FILTER
{
 HIPASS,
 GAUSSIAN_BLUR,
 GAUSSIAN_BLUR2,
 INVERT_BLUR,
 CARTOON,
 EMBOSS,
 SHARPEN,
 MELT,
 SOBEL_GX,
 SOBEL_GY,
 BLUR_3X3,
};

struct S_FILTER
{
 signed char kernel[5][5];
 unsigned int div;
 unsigned char offset;
};


class IMAGE
{
public:
 IMAGE( unsigned int aXsize, unsigned int aYsize );

 IMAGE( const IMAGE& aSrcImage );

 ~IMAGE();

 void Setpixel( int aX, int aY, unsigned char aValue );

 unsigned char Getpixel( int aX, int aY ) const;

 void Hline( int aXStart, int aXEnd, int aY, unsigned char aValue );

 void CircleFilled( int aCx, int aCy, int aRadius, unsigned char aValue );

 void CopyFull( const IMAGE* aImgA, const IMAGE* aImgB, IMAGE_OP aOperation );

 void Invert();

 void EfxFilter( IMAGE* aInImg, IMAGE_FILTER aFilterType );

 void EfxFilter_SkipCenter( IMAGE* aInImg, IMAGE_FILTER aFilterType, unsigned int aRadius );

 void SaveAsPNG( const wxString& aFileName ) const;

 void SetPixelsFromNormalizedFloat( const float* aNormalizedFloatArray );

 unsigned char* GetBuffer() const;

 unsigned int GetWidth() const { return m_width; }
 unsigned int GetHeight() const { return m_height; }

private:
 bool wrapCoords( int* aXo, int* aYo ) const;

 void plot8CircleLines( int aCx, int aCy, int aX, int aY, unsigned char aValue );

 unsigned char* m_pixels; 
 unsigned int m_width; 
 unsigned int m_height; 
 unsigned int m_wxh; 
 IMAGE_WRAP m_wraping; 
};

#endif // IMAGE_H