Rename 'digikam' folder to 'src'

Signed-off-by: Michele Calgaro <[email protected]>

1 files changed, 869 insertions, 0 deletions

diff --git a/src/imageplugins/distortionfx/distortionfx.cpp b/src/imageplugins/distortionfx/distortionfx.cpp
new file mode 100644
index 00000000..d17abd4f
--- /dev/null
+++ b/src/imageplugins/distortionfx/distortionfx.cpp
@@ -0,0 +1,869 @@
+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date        : 2005-07-18
+ * Description : Distortion FX threaded image filter.
+ *
+ * Copyright (C) 2005-2007 by Gilles Caulier <caulier dot gilles at gmail dot com>
+ * Copyright (C) 2006-2007 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
+ *
+ * Original Distortion algorithms copyrighted 2004-2005 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.
+ * 
+ * ============================================================ */
+ 
+// Represents 1
+#define ANGLE_RATIO        0.017453292519943295769236907685
+
+// C++ includes.
+
+#include <cmath>
+#include <cstdlib>
+
+// TQt includes.
+
+#include <tqdatetime.h> 
+
+// Local includes.
+
+#include "dimg.h"
+#include "dimgimagefilters.h"
+#include "distortionfx.h"
+
+namespace DigikamDistortionFXImagesPlugin
+{
+
+DistortionFX::DistortionFX(Digikam::DImg *orgImage, TQObject *parent, int effectType,
+                           int level, int iteration, bool antialiasing)
+            : Digikam::DImgThreadedFilter(orgImage, parent, "DistortionFX")
+{ 
+    m_effectType = effectType;
+    m_level      = level;
+    m_iteration  = iteration;
+    m_antiAlias  = antialiasing;
+
+    initFilter();
+}
+
+void DistortionFX::filterImage(void)
+{
+    int w = m_orgImage.width();
+    int h = m_orgImage.height();
+    int   l     = m_level;
+    int   f     = m_iteration;
+
+    switch (m_effectType)
+    {
+        case FishEye:
+            fisheye(&m_orgImage, &m_destImage, (double)(l/5.0), m_antiAlias);
+            break;
+
+        case Twirl:
+            twirl(&m_orgImage, &m_destImage, l, m_antiAlias);
+            break;
+
+        case CilindricalHor:
+            cilindrical(&m_orgImage, &m_destImage, (double)l, true, false, m_antiAlias);
+            break;
+
+        case CilindricalVert:
+            cilindrical(&m_orgImage, &m_destImage, (double)l, false, true, m_antiAlias);
+            break;
+
+        case CilindricalHV:
+            cilindrical(&m_orgImage, &m_destImage, (double)l, true, true, m_antiAlias);
+            break;
+
+        case Caricature:
+            fisheye(&m_orgImage, &m_destImage, (double)(-l/5.0), m_antiAlias);
+            break;
+
+        case MultipleCorners:
+            multipleCorners(&m_orgImage, &m_destImage, l, m_antiAlias);
+            break;
+
+        case WavesHorizontal:
+            waves(&m_orgImage, &m_destImage, l, f, true, true);
+            break;
+
+        case WavesVertical:
+            waves(&m_orgImage, &m_destImage, l, f, true, false);
+            break;
+
+        case BlockWaves1:
+            blockWaves(&m_orgImage, &m_destImage, l, f, false);
+            break;
+
+        case BlockWaves2:
+            blockWaves(&m_orgImage, &m_destImage, l, f, true);
+            break;
+
+        case CircularWaves1:
+            circularWaves(&m_orgImage, &m_destImage, w/2, h/2, (double)l, (double)f, 0.0, false, m_antiAlias);
+            break;
+
+        case CircularWaves2:
+            circularWaves(&m_orgImage, &m_destImage, w/2, h/2, (double)l, (double)f, 25.0, true, m_antiAlias);
+            break;
+
+        case PolarCoordinates:
+            polarCoordinates(&m_orgImage, &m_destImage, true, m_antiAlias);
+            break;
+
+        case UnpolarCoordinates:
+            polarCoordinates(&m_orgImage, &m_destImage, false, m_antiAlias);
+            break;
+
+        case Tile:
+            tile(&m_orgImage, &m_destImage, 200-f, 200-f, l);
+            break;
+    }
+}
+
+/*
+    This code is shared by six methods.
+    Write value of pixel w|h in data to pixel nw|nh in pResBits.
+    Antialias if requested.
+*/
+void DistortionFX::setPixelFromOther(int Width, int Height, bool sixteenBit, int bytesDepth,
+                                            uchar *data, uchar *pResBits,
+                                            int w, int h, double nw, double nh, bool AntiAlias)
+{
+    Digikam::DColor color;
+    int offset, offsetOther;
+
+    offset = getOffset(Width, w, h, bytesDepth);
+
+    if (AntiAlias)
+    {
+        uchar *ptr = pResBits + offset;
+        if (sixteenBit)
+        {
+            unsigned short *ptr16 = (unsigned short *)ptr;
+            Digikam::DImgImageFilters().pixelAntiAliasing16((unsigned short *)data, Width, Height, nw, nh,
+                    ptr16+3, ptr16+2, ptr16+1, ptr16);
+        }
+        else
+        {
+            Digikam::DImgImageFilters().pixelAntiAliasing(data, Width, Height, nw, nh,
+                    ptr+3, ptr+2, ptr+1, ptr);
+        }
+    }
+    else
+    {
+        // we get the position adjusted
+        offsetOther = getOffsetAdjusted(Width, Height, (int)nw, (int)nh, bytesDepth);
+        // read color
+        color.setColor(data + offsetOther, sixteenBit);
+        // write color to destination
+        color.setPixel(pResBits + offset);
+    }
+}
+
+/* Function to apply the fisheye effect backported from ImageProcessing version 2                                           
+ *                                                                                  
+ * data             => The image data in RGBA mode.                            
+ * Width            => Width of image.                          
+ * Height           => Height of image.    
+ * Coeff            => Distortion effect coeff. Positive value render 'Fish Eyes' effect, 
+ *                     and negative values render 'Caricature' effect.
+ * Antialias        => Smart bluring result.                       
+ *                                                                                  
+ * Theory           => This is a great effect if you take employee photos
+ *                     Its pure trigonometry. I think if you study hard the code you
+ *                     understand very well.
+ */
+void DistortionFX::fisheye(Digikam::DImg *orgImage, Digikam::DImg *destImage, double Coeff, bool AntiAlias)
+{
+    if (Coeff == 0.0) return;
+
+    int Width       = orgImage->width();
+    int Height      = orgImage->height();
+    uchar* data     = orgImage->bits();
+    bool sixteenBit = orgImage->sixteenBit();
+    int bytesDepth  = orgImage->bytesDepth();
+    uchar* pResBits = destImage->bits();
+
+    int h, w;
+    double nh, nw, th, tw;
+
+    int progress;
+    int nHalfW = Width / 2, nHalfH = Height / 2;
+
+    Digikam::DColor color;
+    int offset;
+
+    double lfXScale = 1.0, lfYScale = 1.0;
+    double lfRadius, lfRadMax, lfAngle, lfCoeff, lfCoeffStep = Coeff / 1000.0;
+
+    if (Width > Height)
+        lfYScale = (double)Width / (double)Height;
+    else if (Height > Width)
+        lfXScale = (double)Height / (double)Width;
+
+    lfRadMax = (double)TQMAX(Height, Width) / 2.0;
+    lfCoeff = lfRadMax / log (fabs (lfCoeffStep) * lfRadMax + 1.0);
+
+    // main loop
+
+    for (h = 0; !m_cancel && (h < Height); h++)
+    {
+        th = lfYScale * (double)(h - nHalfH);
+
+        for (w = 0; !m_cancel && (w < Width); w++)
+        {
+            tw = lfXScale * (double)(w - nHalfW);
+
+            // we find the distance from the center
+            lfRadius = sqrt (th * th + tw * tw);
+
+            if (lfRadius < lfRadMax)
+            {
+                lfAngle = atan2 (th, tw);
+
+                if (Coeff > 0.0)
+                    lfRadius = (exp (lfRadius / lfCoeff) - 1.0) / lfCoeffStep;
+                else
+                    lfRadius = lfCoeff * log (1.0 + (-1.0 * lfCoeffStep) * lfRadius);
+
+                nw = (double)nHalfW + (lfRadius / lfXScale) * cos (lfAngle);
+                nh = (double)nHalfH + (lfRadius / lfYScale) * sin (lfAngle);
+
+                setPixelFromOther(Width, Height, sixteenBit, bytesDepth, data, pResBits, w, h, nw, nh, AntiAlias);
+            }
+            else
+            {
+                // copy pixel
+                offset = getOffset(Width, w, h, bytesDepth);
+                color.setColor(data + offset, sixteenBit);
+                color.setPixel(pResBits + offset);
+            }
+        }
+
+        // Update the progress bar in dialog.
+        progress = (int) (((double)(h) * 100.0) / Height);
+
+        if (progress%5 == 0)
+            postProgress(progress);
+    }
+}
+
+/* Function to apply the twirl effect backported from ImageProcessing version 2
+ *                                                                                  
+ * data             => The image data in RGBA mode.                            
+ * Width            => Width of image.                          
+ * Height           => Height of image.                            
+ * Twirl            => Distance value.
+ * Antialias        => Smart bluring result.    
+ *                                                                                  
+ * Theory           => Take spiral studies, you will understand better, I'm studying
+ *                     hard on this effect, because it is not too fast.
+ */
+void DistortionFX::twirl(Digikam::DImg *orgImage, Digikam::DImg *destImage, int Twirl, bool AntiAlias)
+{
+    // if twirl value is zero, we do nothing
+
+    if (Twirl == 0)
+        return;
+
+    int Width       = orgImage->width();
+    int Height      = orgImage->height();
+    uchar* data     = orgImage->bits();
+    bool sixteenBit = orgImage->sixteenBit();
+    int bytesDepth  = orgImage->bytesDepth();
+    uchar* pResBits = destImage->bits();
+
+    int h, w;
+    double tw, th, nh, nw;
+
+    Digikam::DColor color;
+    int offset;
+
+    int progress;
+    int nHalfW = Width / 2, nHalfH = Height / 2;
+
+    double lfXScale = 1.0, lfYScale = 1.0;
+    double lfAngle, lfNewAngle, lfAngleStep, lfAngleSum, lfCurrentRadius, lfRadMax;
+
+    if (Width > Height)
+        lfYScale = (double)Width / (double)Height;
+    else if (Height > Width)
+        lfXScale = (double)Height / (double)Width;
+
+    // the angle step is twirl divided by 10000
+    lfAngleStep = Twirl / 10000.0;
+    // now, we get the minimum radius
+    lfRadMax = (double)TQMAX(Width, Height) / 2.0;
+
+    // main loop
+
+    for (h = 0; !m_cancel && (h < Height); h++)
+    {
+        th = lfYScale * (double)(h - nHalfH);
+
+        for (w = 0; !m_cancel && (w < Width); w++)
+        {
+            tw = lfXScale * (double)(w - nHalfW);
+
+            // now, we get the distance
+            lfCurrentRadius = sqrt (th * th + tw * tw);
+
+            // if distance is less than maximum radius...
+            if (lfCurrentRadius < lfRadMax)
+            {
+                // we find the angle from the center
+                lfAngle = atan2 (th, tw);
+                // we get the accumuled angle
+                lfAngleSum = lfAngleStep * (-1.0 * (lfCurrentRadius - lfRadMax));
+                // ok, we sum angle with accumuled to find a new angle
+                lfNewAngle = lfAngle + lfAngleSum;
+
+                // now we find the exact position's x and y
+                nw = (double)nHalfW + cos (lfNewAngle) * (lfCurrentRadius / lfXScale);
+                nh = (double)nHalfH + sin (lfNewAngle) * (lfCurrentRadius / lfYScale);
+
+                setPixelFromOther(Width, Height, sixteenBit, bytesDepth, data, pResBits, w, h, nw, nh, AntiAlias);
+            }
+            else
+            {
+                // copy pixel
+                offset = getOffset(Width, w, h, bytesDepth);
+                color.setColor(data + offset, sixteenBit);
+                color.setPixel(pResBits + offset);
+            }
+        }
+
+        // Update the progress bar in dialog.
+        progress = (int) (((double)h * 100.0) / Height);
+
+        if (progress%5 == 0)
+            postProgress(progress);
+    }
+}
+
+/* Function to apply the Cilindrical effect backported from ImageProcessing version 2
+ *                                                                                  
+ * data             => The image data in RGBA mode.                            
+ * Width            => Width of image.                          
+ * Height           => Height of image.                            
+ * Coeff            => Cilindrical value.
+ * Horizontal       => Apply horizontally.
+ * Vertical         => Apply vertically.
+ * Antialias        => Smart bluring result. 
+ *                                                                                  
+ * Theory           => This is a great effect, similar to Spherize (Photoshop).    
+ *                     If you understand FishEye, you will understand Cilindrical    
+ *                     FishEye apply a logarithm function using a sphere radius,     
+ *                     Spherize use the same function but in a rectangular        
+ *                     environment.
+ */
+void DistortionFX::cilindrical(Digikam::DImg *orgImage, Digikam::DImg *destImage, double Coeff,
+                               bool Horizontal, bool Vertical, bool AntiAlias)
+
+{
+    if ((Coeff == 0.0) || (! (Horizontal || Vertical)))
+        return;
+
+    int Width       = orgImage->width();
+    int Height      = orgImage->height();
+    uchar* data     = orgImage->bits();
+    bool sixteenBit = orgImage->sixteenBit();
+    int bytesDepth  = orgImage->bytesDepth();
+    uchar* pResBits = destImage->bits();
+
+    int progress;
+
+    int h, w;
+    double nh, nw;
+
+    int nHalfW = Width / 2, nHalfH = Height / 2;
+    double lfCoeffX = 1.0, lfCoeffY = 1.0, lfCoeffStep = Coeff / 1000.0;
+
+    if (Horizontal)
+        lfCoeffX = (double)nHalfW / log (fabs (lfCoeffStep) * nHalfW + 1.0);
+    if (Vertical)
+        lfCoeffY = (double)nHalfH / log (fabs (lfCoeffStep) * nHalfH + 1.0);
+
+    // initial copy
+    memcpy (pResBits, data, orgImage->numBytes());
+
+    // main loop
+
+    for (h = 0; !m_cancel && (h < Height); h++)
+    {
+        for (w = 0; !m_cancel && (w < Width); w++)
+        {
+            // we find the distance from the center
+            nh = fabs ((double)(h - nHalfH));
+            nw = fabs ((double)(w - nHalfW));
+
+            if (Horizontal)
+            {
+                if (Coeff > 0.0)
+                    nw = (exp (nw / lfCoeffX) - 1.0) / lfCoeffStep;
+                else
+                    nw = lfCoeffX * log (1.0 + (-1.0 * lfCoeffStep) * nw);
+            }
+
+            if (Vertical)
+            {
+                if (Coeff > 0.0)
+                    nh = (exp (nh / lfCoeffY) - 1.0) / lfCoeffStep;
+                else
+                    nh = lfCoeffY * log (1.0 + (-1.0 * lfCoeffStep) * nh);
+            }
+
+            nw = (double)nHalfW + ((w >= nHalfW) ? nw : -nw);
+            nh = (double)nHalfH + ((h >= nHalfH) ? nh : -nh);
+
+            setPixelFromOther(Width, Height, sixteenBit, bytesDepth, data, pResBits, w, h, nw, nh, AntiAlias);
+        }
+
+        // Update the progress bar in dialog.
+        progress = (int) (((double)h * 100.0) / Height);
+
+        if (progress%5 == 0)
+            postProgress(progress);
+    }
+}
+
+/* Function to apply the Multiple Corners effect backported from ImageProcessing version 2
+ *                                                                                  
+ * data             => The image data in RGBA mode.                            
+ * Width            => Width of image.                          
+ * Height           => Height of image.       
+ * Factor           => nb corners.
+ * Antialias        => Smart bluring result.                      
+ *                                                                                  
+ * Theory           => This is an amazing function, you've never seen this before. 
+ *                     I was testing some trigonometric functions, and I saw that if  
+ *                     I multiply the angle by 2, the result is an image like this   
+ *                     If we multiply by 3, we can create the SixCorners effect. 
+ */
+void DistortionFX::multipleCorners(Digikam::DImg *orgImage, Digikam::DImg *destImage, int Factor, bool AntiAlias)
+{
+    if (Factor == 0) return;
+
+    int Width       = orgImage->width();
+    int Height      = orgImage->height();
+    uchar* data     = orgImage->bits();
+    bool sixteenBit = orgImage->sixteenBit();
+    int bytesDepth  = orgImage->bytesDepth();
+    uchar* pResBits = destImage->bits();
+
+    int h, w;
+    double nh, nw;
+    int progress;
+
+    int nHalfW = Width / 2, nHalfH = Height / 2;
+    double lfAngle, lfNewRadius, lfCurrentRadius, lfRadMax;
+
+    lfRadMax = sqrt (Height * Height + Width * Width) / 2.0;
+
+    // main loop
+
+    for (h = 0; !m_cancel && (h < Height); h++)
+    {
+        for (w = 0; !m_cancel && (w < Width); w++)
+        {
+            // we find the distance from the center
+            nh = nHalfH - h;
+            nw = nHalfW - w;
+
+            // now, we get the distance
+            lfCurrentRadius = sqrt (nh * nh + nw * nw);
+            // we find the angle from the center
+            lfAngle = atan2 (nh, nw) * (double)Factor;
+
+            // ok, we sum angle with accumuled to find a new angle
+            lfNewRadius = lfCurrentRadius * lfCurrentRadius / lfRadMax;
+
+            // now we find the exact position's x and y
+            nw = (double)nHalfW - (cos (lfAngle) * lfNewRadius);
+            nh = (double)nHalfH - (sin (lfAngle) * lfNewRadius);
+
+            setPixelFromOther(Width, Height, sixteenBit, bytesDepth, data, pResBits, w, h, nw, nh, AntiAlias);
+        }
+
+        // Update the progress bar in dialog.
+        progress = (int) (((double)h * 100.0) / Height);
+
+        if (progress%5 == 0)
+            postProgress(progress);
+    }
+}
+
+/* Function to apply the Polar Coordinates effect backported from ImageProcessing version 2
+ *                                                                                  
+ * data             => The image data in RGBA mode.                            
+ * Width            => Width of image.                          
+ * Height           => Height of image.
+ * Type             => if true Polar Coordinate to Polar else inverse.
+ * Antialias        => Smart bluring result.                      
+ *                                                                                  
+ * Theory           => Similar to PolarCoordinates from Photoshop. We apply the polar   
+ *                     transformation in a proportional (Height and Width) radius.
+ */
+void DistortionFX::polarCoordinates(Digikam::DImg *orgImage, Digikam::DImg *destImage, bool Type, bool AntiAlias)
+{
+    int Width       = orgImage->width();
+    int Height      = orgImage->height();
+    uchar* data     = orgImage->bits();
+    bool sixteenBit = orgImage->sixteenBit();
+    int bytesDepth  = orgImage->bytesDepth();
+    uchar* pResBits = destImage->bits();
+
+    int h, w;
+    double nh, nw, th, tw;
+    int progress;
+
+    int nHalfW = Width / 2, nHalfH = Height / 2;
+    double lfXScale = 1.0, lfYScale = 1.0;
+    double lfAngle, lfRadius, lfRadMax;
+
+    if (Width > Height)
+        lfYScale = (double)Width / (double)Height;
+    else if (Height > Width)
+        lfXScale = (double)Height / (double)Width;
+
+    lfRadMax = (double)TQMAX(Height, Width) / 2.0;
+
+    // main loop
+
+    for (h = 0; !m_cancel && (h < Height); h++)
+    {
+        th = lfYScale * (double)(h - nHalfH);
+
+        for (w = 0; !m_cancel && (w < Width); w++)
+        {
+            tw = lfXScale * (double)(w - nHalfW);
+
+            if (Type)
+            {
+                // now, we get the distance
+                lfRadius = sqrt (th * th + tw * tw);
+                // we find the angle from the center
+                lfAngle = atan2 (tw, th);
+
+                // now we find the exact position's x and y
+                nh = lfRadius * (double) Height / lfRadMax;
+                nw =  lfAngle * (double)  Width / (2 * M_PI);
+
+                nw = (double)nHalfW + nw;
+            }
+            else
+            {
+                lfRadius = (double)(h) * lfRadMax / (double)Height;
+                lfAngle  = (double)(w) * (2 * M_PI) / (double) Width;
+
+                nw = (double)nHalfW - (lfRadius / lfXScale) * sin (lfAngle);
+                nh = (double)nHalfH - (lfRadius / lfYScale) * cos (lfAngle);
+            }
+
+            setPixelFromOther(Width, Height, sixteenBit, bytesDepth, data, pResBits, w, h, nw, nh, AntiAlias);
+        }
+
+        // Update the progress bar in dialog.
+        progress = (int) (((double)h * 100.0) / Height);
+
+        if (progress%5 == 0)
+            postProgress(progress);
+    }
+}
+
+/* Function to apply the circular waves effect backported from ImageProcessing version 2                                           
+ *                                                                                  
+ * data             => The image data in RGBA mode.                            
+ * Width            => Width of image.                          
+ * Height           => Height of image.     
+ * X, Y             => Position of circle center on the image.                       
+ * Amplitude        => Sinoidal maximum height                                        
+ * Frequency        => Frequency value.
+ * Phase            => Phase value.
+ * WavesType        => If true  the amplitude is proportional to radius.
+ * Antialias        => Smart bluring result.                      
+ *                                                                                  
+ * Theory           => Similar to Waves effect, but here I apply a senoidal function
+ *                     with the angle point.                                                      
+ */
+void DistortionFX::circularWaves(Digikam::DImg *orgImage, Digikam::DImg *destImage, int X, int Y, double Amplitude, 
+                                 double Frequency, double Phase, bool WavesType, bool AntiAlias)
+{
+    if (Amplitude < 0.0) Amplitude = 0.0;
+    if (Frequency < 0.0) Frequency = 0.0;
+
+    int Width       = orgImage->width();
+    int Height      = orgImage->height();
+    uchar* data     = orgImage->bits();
+    bool sixteenBit = orgImage->sixteenBit();
+    int bytesDepth  = orgImage->bytesDepth();
+    uchar* pResBits = destImage->bits();
+
+    int h, w;
+    double nh, nw;
+    int progress;
+
+    double lfRadius, lfRadMax, lfNewAmp = Amplitude;
+    double lfFreqAngle = Frequency * ANGLE_RATIO;
+
+    Phase *= ANGLE_RATIO;
+
+    lfRadMax = sqrt (Height * Height + Width * Width);
+
+    for (h = 0; !m_cancel && (h < Height); h++)
+    {
+        for (w = 0; !m_cancel && (w < Width); w++)
+        {
+            nw = X - w;
+            nh = Y - h;
+
+            lfRadius = sqrt (nw * nw + nh * nh);
+
+            if (WavesType)
+                lfNewAmp = Amplitude * lfRadius / lfRadMax;
+
+            nw = (double)w + lfNewAmp * sin(lfFreqAngle * lfRadius + Phase);
+            nh = (double)h + lfNewAmp * cos(lfFreqAngle * lfRadius + Phase);
+
+            setPixelFromOther(Width, Height, sixteenBit, bytesDepth, data, pResBits, w, h, nw, nh, AntiAlias);
+        }
+
+        // Update the progress bar in dialog.
+        progress = (int) (((double)h * 100.0) / Height);
+
+        if (progress%5 == 0)
+            postProgress(progress);
+    }
+}
+
+/* Function to apply the waves effect                                            
+ *                                                                                  
+ * data             => The image data in RGBA mode.                            
+ * Width            => Width of image.                          
+ * Height           => Height of image.                            
+ * Amplitude        => Sinoidal maximum height.                                        
+ * Frequency        => Frequency value.                                                
+ * FillSides        => Like a boolean variable.                                        
+ * Direction        => Vertical or horizontal flag.                                    
+ *                                                                                    
+ * Theory           => This is an amazing effect, very funny, and very simple to    
+ *                     understand. You just need understand how sin and cos works.   
+ */
+void DistortionFX::waves(Digikam::DImg *orgImage, Digikam::DImg *destImage,
+                         int Amplitude, int Frequency,
+                         bool FillSides, bool Direction)
+{
+    if (Amplitude < 0) Amplitude = 0;
+    if (Frequency < 0) Frequency = 0;
+
+    int Width       = orgImage->width();
+    int Height      = orgImage->height();
+
+    int progress;
+    int h, w;
+
+    if (Direction)        // Horizontal
+    {
+        int tx;
+
+        for (h = 0; !m_cancel && (h < Height); h++)
+        {
+            tx = lround(Amplitude * sin ((Frequency * 2) * h * (M_PI / 180)));
+            destImage->bitBltImage(orgImage, 0, h,  Width, 1,  tx, h);
+
+            if (FillSides)
+            {
+                destImage->bitBltImage(orgImage, Width - tx, h,  tx, 1,  0, h);
+                destImage->bitBltImage(orgImage, 0, h,  Width - (Width - 2 * Amplitude + tx), 1,  Width + tx, h);
+            }
+
+            // Update the progress bar in dialog.
+            progress = (int) (((double)h * 100.0) / Height);
+
+            if (progress%5 == 0)
+                postProgress(progress);
+        }
+    }
+    else
+    {
+        int ty;
+
+        for (w = 0; !m_cancel && (w < Width); w++)
+        {
+            ty = lround(Amplitude * sin ((Frequency * 2) * w * (M_PI / 180)));
+            destImage->bitBltImage(orgImage, w, 0, 1, Height, w, ty);
+
+            if (FillSides)
+            {
+                destImage->bitBltImage(orgImage, w, Height - ty,  1, ty,  w, 0);
+                destImage->bitBltImage(orgImage, w, 0,  1, Height - (Height - 2 * Amplitude + ty),  w, Height + ty);
+            }
+
+            // Update the progress bar in dialog.
+            progress = (int) (((double)w * 100.0) / Width);
+
+            if (progress%5 == 0)
+                postProgress(progress);
+        }
+    }
+}
+
+/* Function to apply the block waves effect                                            
+ *                                                                                  
+ * data             => The image data in RGBA mode.                            
+ * Width            => Width of image.                          
+ * Height           => Height of image.                            
+ * Amplitude        => Sinoidal maximum height                                        
+ * Frequency        => Frequency value                                                
+ * Mode             => The mode to be applied.                                       
+ *                                                                                  
+ * Theory           => This is an amazing effect, very funny when amplitude and     
+ *                     frequency are small values.                                  
+ */
+void DistortionFX::blockWaves(Digikam::DImg *orgImage, Digikam::DImg *destImage,
+                              int Amplitude, int Frequency, bool Mode)
+{
+    if (Amplitude < 0) Amplitude = 0;
+    if (Frequency < 0) Frequency = 0;
+
+    int Width       = orgImage->width();
+    int Height      = orgImage->height();
+    uchar* data     = orgImage->bits();
+    bool sixteenBit = orgImage->sixteenBit();
+    int bytesDepth  = orgImage->bytesDepth();
+    uchar* pResBits = destImage->bits();
+
+    int nw, nh, progress;
+    double Radius;
+
+    Digikam::DColor color;
+    int offset, offsetOther;
+
+    int nHalfW = Width / 2, nHalfH = Height / 2;
+
+    for (int w = 0; !m_cancel && (w < Width); w++)
+    {
+        for (int h = 0; !m_cancel && (h < Height); h++)
+        {
+            nw = nHalfW - w;
+            nh = nHalfH - h;
+
+            Radius = sqrt (nw * nw + nh * nh);
+
+            if (Mode)
+            {
+                nw = (int)(w + Amplitude * sin (Frequency * nw * (M_PI / 180)));
+                nh = (int)(h + Amplitude * cos (Frequency * nh * (M_PI / 180)));
+            }
+            else
+            {
+                nw = (int)(w + Amplitude * sin (Frequency * w * (M_PI / 180)));
+                nh = (int)(h + Amplitude * cos (Frequency * h * (M_PI / 180)));
+            }
+
+            offset = getOffset(Width, w, h, bytesDepth);
+            offsetOther = getOffsetAdjusted(Width, Height, (int)nw, (int)nh, bytesDepth);
+
+            // read color
+            color.setColor(data + offsetOther, sixteenBit);
+            // write color to destination
+            color.setPixel(pResBits + offset);
+        }
+
+        // Update the progress bar in dialog.
+        progress = (int) (((double)w * 100.0) / Width);
+
+        if (progress%5 == 0)
+            postProgress(progress);
+    }
+}
+
+/* Function to apply the tile effect                                            
+ *                                                                                  
+ * data             => The image data in RGBA mode.                            
+ * Width            => Width of image.                          
+ * Height           => Height of image.                            
+ * WSize            => Tile Width                                                        
+ * HSize            => Tile Height                                                      
+ * Random           => Maximum random value                                        
+ *                                                                                    
+ * Theory           => Similar to Tile effect from Photoshop and very easy to        
+ *                     understand. We get a rectangular area using WSize and HSize and    
+ *                     replace in a position with a random distance from the original    
+ *                     position.                                                    
+ */
+void DistortionFX::tile(Digikam::DImg *orgImage, Digikam::DImg *destImage,
+                        int WSize, int HSize, int Random)
+{
+    if (WSize < 1)  WSize = 1;
+    if (HSize < 1)  HSize = 1;
+    if (Random < 1) Random = 1;
+
+    int Width       = orgImage->width();
+    int Height      = orgImage->height();
+
+    TQDateTime dt = TQDateTime::currentDateTime();
+    TQDateTime Y2000( TQDate(2000, 1, 1), TQTime(0, 0, 0) );
+    uint seed = dt.secsTo(Y2000);
+
+    int tx, ty, h, w, progress;
+
+    for (h = 0; !m_cancel && (h < Height); h += HSize)
+    {
+        for (w = 0; !m_cancel && (w < Width); w += WSize)
+        {
+            tx = (int)(rand_r(&seed) % Random) - (Random / 2);
+            ty = (int)(rand_r(&seed) % Random) - (Random / 2);
+            destImage->bitBltImage(orgImage, w, h,   WSize, HSize,   w + tx, h + ty);
+        }
+
+        // Update the progress bar in dialog.
+        progress = (int)(((double)h * 100.0) / Height);
+
+        if (progress%5 == 0)
+            postProgress(progress);
+    }
+}
+
+// UNUSED
+/* Function to return the maximum radius with a determined angle                    
+ *                                                                                  
+ * Height           => Height of the image                                         
+ * Width            => Width of the image                                           
+ * Angle            => Angle to analize the maximum radius                          
+ *                                                                                  
+ * Theory           => This function calcule the maximum radius to that angle      
+ *                     so, we can build an oval circunference                        
+ */                                                                                   
+ /*
+double DistortionFX::maximumRadius(int Height, int Width, double Angle)
+{
+    double MaxRad, MinRad;
+    double Radius, DegAngle = fabs (Angle * 57.295);    // Rads -> Degrees
+
+    MinRad = TQMIN (Height, Width) / 2.0;                // Gets the minor radius
+    MaxRad = TQMAX (Height, Width) / 2.0;                // Gets the major radius
+
+    // Find the quadrant between -PI/2 and PI/2
+    if (DegAngle > 90.0)
+        Radius = proportionalValue (MinRad, MaxRad, (DegAngle * (255.0 / 90.0)));
+    else
+        Radius = proportionalValue (MaxRad, MinRad, ((DegAngle - 90.0) * (255.0 / 90.0)));
+    return (Radius);
+}
+ */
+
+}  // NameSpace DigikamDistortionFXImagesPlugin