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/* ============================================================
*
* This file is a part of digiKam project
* http://www.digikam.org
*
* Date : 2005-05-25
* Description : Blur FX threaded image filter.
*
* Copyright 2005-2007 by Gilles Caulier <caulier dot gilles at gmail dot com>
* Copyright 2006-2007 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
*
* Original Blur algorithms copyrighted 2004 by
* Pieter Z. Voloshyn <pieter dot voloshyn at gmail dot com>.
*
* 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, 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.
*
* ============================================================ */
#ifndef BLURFX_H
#define BLURFX_H
// Digikam includes.
#include "dimgthreadedfilter.h"
namespace DigikamBlurFXImagesPlugin
{
class BlurFX : public Digikam::DImgThreadedFilter
{
public:
BlurFX(Digikam::DImg *orgImage, QObject *parent=0, int blurFXType=ZoomBlur,
int distance=100, int level=45);
~BlurFX(){};
public:
enum BlurFXTypes
{
ZoomBlur=0,
RadialBlur,
FarBlur,
MotionBlur,
SoftenerBlur,
ShakeBlur,
FocusBlur,
SmartBlur,
FrostGlass,
Mosaic
};
private: // BlurFX filter data.
int m_blurFXType;
int m_distance;
int m_level;
private: // BlurFX filter methods.
virtual void filterImage(void);
// Backported from ImageProcessing version 1
void softenerBlur(Digikam::DImg *orgImage, Digikam::DImg *destImage);
void shakeBlur(Digikam::DImg *orgImage, Digikam::DImg *destImage, int Distance);
void frostGlass(Digikam::DImg *orgImage, Digikam::DImg *destImage, int Frost);
// Backported from ImageProcessing version 2
void zoomBlur(Digikam::DImg *orgImage, Digikam::DImg *destImage,
int X, int Y, int Distance, QRect pArea=QRect());
void radialBlur(Digikam::DImg *orgImage, Digikam::DImg *destImage,
int X, int Y, int Distance, QRect pArea=QRect());
void focusBlur(Digikam::DImg *orgImage, Digikam::DImg *destImage,
int X, int Y, int BlurRadius, int BlendRadius,
bool bInversed=false, QRect pArea=QRect());
void farBlur(Digikam::DImg *orgImage, Digikam::DImg *destImage, int Distance);
void motionBlur(Digikam::DImg *orgImage, Digikam::DImg *destImage, int Distance, double Angle=0.0);
void smartBlur(Digikam::DImg *orgImage, Digikam::DImg *destImage, int Radius, int Strenght);
void mosaic(Digikam::DImg *orgImage, Digikam::DImg *destImage, int SizeW, int SizeH);
private: // Internal filter methods.
void MakeConvolution(Digikam::DImg *orgImage, Digikam::DImg *destImage, int Radius, int Kernel[]);
Digikam::DColor RandomColor(uchar *Bits, int Width, int Height, bool sixteenBit, int bytesDepth,
int X, int Y, int Radius,
int alpha, uint *randomSeed, int range, uchar *IntensityCount,
uint *AverageColorR, uint *AverageColorG, uint *AverageColorB);
// Return the limit defined the max and min values.
inline int Lim_Max(int Now, int Up, int Max)
{
--Max;
while (Now > Max - Up) --Up;
return (Up);
};
// Return the luminance (Y) component of YIQ color model.
inline int GetIntensity (int R, int G, int B)
{
return (int)(R * 0.3 + G * 0.59 + B * 0.11);
};
// function to allocate a 2d array
inline int** Alloc2DArray (int Columns, int Rows)
{
// First, we declare our future 2d array to be returned
int** lpcArray = NULL;
// Now, we alloc the main pointer with Columns
lpcArray = new int*[Columns];
for (int i = 0; i < Columns; i++)
lpcArray[i] = new int[Rows];
return (lpcArray);
}
// Function to deallocates the 2d array previously created
inline void Free2DArray (int** lpcArray, int Columns)
{
// loop to dealocate the columns
for (int i = 0; i < Columns; i++)
delete [] lpcArray[i];
// now, we delete the main pointer
delete [] lpcArray;
}
inline bool IsInside (int Width, int Height, int X, int Y)
{
bool bIsWOk = ((X < 0) ? false : (X >= Width ) ? false : true);
bool bIsHOk = ((Y < 0) ? false : (Y >= Height) ? false : true);
return (bIsWOk && bIsHOk);
};
inline uchar LimitValues8(int ColorValue)
{
if (ColorValue > 255) ColorValue = 255;
if (ColorValue < 0) ColorValue = 0;
return ((uchar) ColorValue);
};
inline int LimitValues16(int ColorValue)
{
if (ColorValue > 65535) ColorValue = 65535;
if (ColorValue < 0) ColorValue = 0;
return ColorValue;
};
inline int GetOffset(int Width, int X, int Y, int bytesDepth)
{
return (Y * Width * bytesDepth) + (X * bytesDepth);
};
inline int GetOffsetAdjusted(int Width, int Height, int X, int Y, int bytesDepth)
{
X = (X < 0) ? 0 : ((X >= Width ) ? (Width - 1) : X);
Y = (Y < 0) ? 0 : ((Y >= Height) ? (Height - 1) : Y);
return GetOffset(Width, X, Y, bytesDepth);
};
inline bool IsColorInsideTheRange (int cR, int cG, int cB,
int nR, int nG, int nB,
int Range)
{
if ((nR >= cR - Range) && (nR <= cR + Range))
if ((nG >= cG - Range) && (nG <= cG + Range))
if ((nB >= cB - Range) && (nB <= cB + Range))
return (true);
return (false);
};
};
} // NameSpace DigikamBlurFXImagesPlugin
#endif /* BLURFX_H */
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