Diffstat (limited to 'libopie2/opieui/oimageeffect.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | libopie2/opieui/oimageeffect.cpp | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/libopie2/opieui/oimageeffect.cpp b/libopie2/opieui/oimageeffect.cpp index 01e7c6f..9a58bb9 100644 --- a/libopie2/opieui/oimageeffect.cpp +++ b/libopie2/opieui/oimageeffect.cpp @@ -1,114 +1,115 @@ /* This file is part of the KDE libraries Copyright (C) 1998, 1999, 2001, 2002 Daniel M. Duley <mosfet@kde.org> (C) 1998, 1999 Christian Tibirna <ctibirna@total.net> (C) 1998, 1999 Dirk A. Mueller <mueller@kde.org> (C) 2000 Josef Weidendorfer <weidendo@in.tum.de> Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ // $Id$ #include <math.h> #include <qimage.h> #include <stdlib.h> -#include "oimageeffect.h" +#include <opie2/oimageeffect.h> +#include <opie2/odebug.h> #define MaxRGB 255L #define DegreesToRadians(x) ((x)*M_PI/180.0) using namespace std; inline unsigned int intensityValue(unsigned int color) { return((unsigned int)((0.299*qRed(color) + 0.587*qGreen(color) + 0.1140000000000001*qBlue(color)))); } //====================================================================== // // Gradient effects // //====================================================================== QImage OImageEffect::gradient(const QSize &size, const QColor &ca, const QColor &cb, GradientType eff, int ncols) { int rDiff, gDiff, bDiff; int rca, gca, bca, rcb, gcb, bcb; QImage image(size, 32); if (size.width() == 0 || size.height() == 0) { - qDebug( "WARNING: OImageEffect::gradient: invalid image" ); + odebug << "WARNING: OImageEffect::gradient: invalid image" << oendl; return image; } register int x, y; rDiff = (rcb = cb.red()) - (rca = ca.red()); gDiff = (gcb = cb.green()) - (gca = ca.green()); bDiff = (bcb = cb.blue()) - (bca = ca.blue()); if( eff == VerticalGradient || eff == HorizontalGradient ){ uint *p; uint rgb; register int rl = rca << 16; register int gl = gca << 16; register int bl = bca << 16; if( eff == VerticalGradient ) { int rcdelta = ((1<<16) / size.height()) * rDiff; int gcdelta = ((1<<16) / size.height()) * gDiff; int bcdelta = ((1<<16) / size.height()) * bDiff; for ( y = 0; y < size.height(); y++ ) { p = (uint *) image.scanLine(y); rl += rcdelta; gl += gcdelta; bl += bcdelta; rgb = qRgb( (rl>>16), (gl>>16), (bl>>16) ); for( x = 0; x < size.width(); x++ ) { *p = rgb; p++; } } } else { // must be HorizontalGradient unsigned int *o_src = (unsigned int *)image.scanLine(0); unsigned int *src = o_src; int rcdelta = ((1<<16) / size.width()) * rDiff; int gcdelta = ((1<<16) / size.width()) * gDiff; int bcdelta = ((1<<16) / size.width()) * bDiff; @@ -304,97 +305,97 @@ QImage OImageEffect::gradient(const QSize &size, const QColor &ca, return image; } // ----------------------------------------------------------------------------- //CT this was (before Dirk A. Mueller's speedup changes) // merely the same code as in the above method, but it's supposedly // way less performant since it introduces a lot of supplementary tests // and simple math operations for the calculus of the balance. // (surprizingly, it isn't less performant, in the contrary :-) // Yes, I could have merged them, but then the excellent performance of // the balanced code would suffer with no other gain than a mere // source code and byte code size economy. QImage OImageEffect::unbalancedGradient(const QSize &size, const QColor &ca, const QColor &cb, GradientType eff, int xfactor, int yfactor, int ncols) { int dir; // general parameter used for direction switches bool _xanti = false , _yanti = false; if (xfactor < 0) _xanti = true; // negative on X direction if (yfactor < 0) _yanti = true; // negative on Y direction xfactor = abs(xfactor); yfactor = abs(yfactor); if (!xfactor) xfactor = 1; if (!yfactor) yfactor = 1; if (xfactor > 200 ) xfactor = 200; if (yfactor > 200 ) yfactor = 200; // float xbal = xfactor/5000.; // float ybal = yfactor/5000.; float xbal = xfactor/30./size.width(); float ybal = yfactor/30./size.height(); float rat; int rDiff, gDiff, bDiff; int rca, gca, bca, rcb, gcb, bcb; QImage image(size, 32); if (size.width() == 0 || size.height() == 0) { - qDebug( "WARNING: OImageEffect::unbalancedGradient : invalid image" ); + odebug << "WARNING: OImageEffect::unbalancedGradient : invalid image" << oendl; return image; } register int x, y; unsigned int *scanline; rDiff = (rcb = cb.red()) - (rca = ca.red()); gDiff = (gcb = cb.green()) - (gca = ca.green()); bDiff = (bcb = cb.blue()) - (bca = ca.blue()); if( eff == VerticalGradient || eff == HorizontalGradient){ QColor cRow; uint *p; uint rgbRow; if( eff == VerticalGradient) { for ( y = 0; y < size.height(); y++ ) { dir = _yanti ? y : size.height() - 1 - y; p = (uint *) image.scanLine(dir); rat = 1 - exp( - (float)y * ybal ); cRow.setRgb( rcb - (int) ( rDiff * rat ), gcb - (int) ( gDiff * rat ), bcb - (int) ( bDiff * rat ) ); rgbRow = cRow.rgb(); for( x = 0; x < size.width(); x++ ) { *p = rgbRow; p++; } } } else { unsigned int *src = (unsigned int *)image.scanLine(0); for(x = 0; x < size.width(); x++ ) { dir = _xanti ? x : size.width() - 1 - x; rat = 1 - exp( - (float)x * xbal ); src[dir] = qRgb(rcb - (int) ( rDiff * rat ), gcb - (int) ( gDiff * rat ), bcb - (int) ( bDiff * rat )); } // Believe it or not, manually copying in a for loop is faster @@ -523,252 +524,252 @@ QImage OImageEffect::unbalancedGradient(const QSize &size, const QColor &ca, } } } } if (ncols && (QPixmap::defaultDepth() < 15 )) { if ( ncols < 2 || ncols > 256 ) ncols = 3; QColor *dPal = new QColor[ncols]; for (int i=0; i<ncols; i++) { dPal[i].setRgb ( rca + rDiff * i / ( ncols - 1 ), gca + gDiff * i / ( ncols - 1 ), bca + bDiff * i / ( ncols - 1 ) ); } dither(image, dPal, ncols); delete [] dPal; } delete [] xtable[0]; delete [] xtable[1]; delete [] xtable[2]; delete [] ytable[0]; delete [] ytable[1]; delete [] ytable[2]; } return image; } //====================================================================== // // Intensity effects // //====================================================================== /* This builds a 256 byte unsigned char lookup table with all * the possible percent values prior to applying the effect, then uses * integer math for the pixels. For any image larger than 9x9 this will be * less expensive than doing a float operation on the 3 color components of * each pixel. (mosfet) */ QImage& OImageEffect::intensity(QImage &image, float percent) { if (image.width() == 0 || image.height() == 0) { - qDebug( "WARNING: OImageEffect::intensity : invalid image" ); + odebug << "WARNING: OImageEffect::intensity : invalid image" << oendl; return image; } int segColors = image.depth() > 8 ? 256 : image.numColors(); unsigned char *segTbl = new unsigned char[segColors]; int pixels = image.depth() > 8 ? image.width()*image.height() : image.numColors(); unsigned int *data = image.depth() > 8 ? (unsigned int *)image.bits() : (unsigned int *)image.colorTable(); bool brighten = (percent >= 0); if(percent < 0) percent = -percent; if(brighten){ // keep overflow check out of loops for(int i=0; i < segColors; ++i){ int tmp = (int)(i*percent); if(tmp > 255) tmp = 255; segTbl[i] = tmp; } } else{ for(int i=0; i < segColors; ++i){ int tmp = (int)(i*percent); if(tmp < 0) tmp = 0; segTbl[i] = tmp; } } if(brighten){ // same here for(int i=0; i < pixels; ++i){ int r = qRed(data[i]); int g = qGreen(data[i]); int b = qBlue(data[i]); int a = qAlpha(data[i]); r = r + segTbl[r] > 255 ? 255 : r + segTbl[r]; g = g + segTbl[g] > 255 ? 255 : g + segTbl[g]; b = b + segTbl[b] > 255 ? 255 : b + segTbl[b]; data[i] = qRgba(r, g, b,a); } } else{ for(int i=0; i < pixels; ++i){ int r = qRed(data[i]); int g = qGreen(data[i]); int b = qBlue(data[i]); int a = qAlpha(data[i]); r = r - segTbl[r] < 0 ? 0 : r - segTbl[r]; g = g - segTbl[g] < 0 ? 0 : g - segTbl[g]; b = b - segTbl[b] < 0 ? 0 : b - segTbl[b]; data[i] = qRgba(r, g, b, a); } } delete [] segTbl; return image; } QImage& OImageEffect::channelIntensity(QImage &image, float percent, RGBComponent channel) { if (image.width() == 0 || image.height() == 0) { - qDebug( "WARNING: OImageEffect::channelIntensity : invalid image" ); + odebug << "WARNING: OImageEffect::channelIntensity : invalid image" << oendl; return image; } int segColors = image.depth() > 8 ? 256 : image.numColors(); unsigned char *segTbl = new unsigned char[segColors]; int pixels = image.depth() > 8 ? image.width()*image.height() : image.numColors(); unsigned int *data = image.depth() > 8 ? (unsigned int *)image.bits() : (unsigned int *)image.colorTable(); bool brighten = (percent >= 0); if(percent < 0) percent = -percent; if(brighten){ // keep overflow check out of loops for(int i=0; i < segColors; ++i){ int tmp = (int)(i*percent); if(tmp > 255) tmp = 255; segTbl[i] = tmp; } } else{ for(int i=0; i < segColors; ++i){ int tmp = (int)(i*percent); if(tmp < 0) tmp = 0; segTbl[i] = tmp; } } if(brighten){ // same here if(channel == Red){ // and here ;-) for(int i=0; i < pixels; ++i){ int c = qRed(data[i]); c = c + segTbl[c] > 255 ? 255 : c + segTbl[c]; data[i] = qRgba(c, qGreen(data[i]), qBlue(data[i]), qAlpha(data[i])); } } if(channel == Green){ for(int i=0; i < pixels; ++i){ int c = qGreen(data[i]); c = c + segTbl[c] > 255 ? 255 : c + segTbl[c]; data[i] = qRgba(qRed(data[i]), c, qBlue(data[i]), qAlpha(data[i])); } } else{ for(int i=0; i < pixels; ++i){ int c = qBlue(data[i]); c = c + segTbl[c] > 255 ? 255 : c + segTbl[c]; data[i] = qRgba(qRed(data[i]), qGreen(data[i]), c, qAlpha(data[i])); } } } else{ if(channel == Red){ for(int i=0; i < pixels; ++i){ int c = qRed(data[i]); c = c - segTbl[c] < 0 ? 0 : c - segTbl[c]; data[i] = qRgba(c, qGreen(data[i]), qBlue(data[i]), qAlpha(data[i])); } } if(channel == Green){ for(int i=0; i < pixels; ++i){ int c = qGreen(data[i]); c = c - segTbl[c] < 0 ? 0 : c - segTbl[c]; data[i] = qRgba(qRed(data[i]), c, qBlue(data[i]), qAlpha(data[i])); } } else{ for(int i=0; i < pixels; ++i){ int c = qBlue(data[i]); c = c - segTbl[c] < 0 ? 0 : c - segTbl[c]; data[i] = qRgba(qRed(data[i]), qGreen(data[i]), c, qAlpha(data[i])); } } } delete [] segTbl; return image; } // Modulate an image with an RBG channel of another image // QImage& OImageEffect::modulate(QImage &image, QImage &modImage, bool reverse, ModulationType type, int factor, RGBComponent channel) { if (image.width() == 0 || image.height() == 0 || modImage.width() == 0 || modImage.height() == 0) { - qDebug( "WARNING: OImageEffect::modulate : invalid image" ); + odebug << "WARNING: OImageEffect::modulate : invalid image" << oendl; return image; } int r, g, b, h, s, v, a; QColor clr; int mod=0; unsigned int x1, x2, y1, y2; register int x, y; // for image, we handle only depth 32 if (image.depth()<32) image = image.convertDepth(32); // for modImage, we handle depth 8 and 32 if (modImage.depth()<8) modImage = modImage.convertDepth(8); unsigned int *colorTable2 = (modImage.depth()==8) ? modImage.colorTable():0; unsigned int *data1, *data2; unsigned char *data2b; unsigned int color1, color2; x1 = image.width(); y1 = image.height(); x2 = modImage.width(); y2 = modImage.height(); for (y = 0; y < (int)y1; y++) { data1 = (unsigned int *) image.scanLine(y); data2 = (unsigned int *) modImage.scanLine( y%y2 ); data2b = (unsigned char *) modImage.scanLine( y%y2 ); x=0; while(x < (int)x1) { color2 = (colorTable2) ? colorTable2[*data2b] : *data2; if (reverse) { color1 = color2; color2 = *data1; } else color1 = *data1; if (type == Intensity || type == Contrast) { r = qRed(color1); g = qGreen(color1); b = qBlue(color1); if (channel != All) { mod = (channel == Red) ? qRed(color2) : (channel == Green) ? qGreen(color2) : (channel == Blue) ? qBlue(color2) : (channel == Gray) ? qGray(color2) : 0; @@ -807,185 +808,185 @@ QImage& OImageEffect::modulate(QImage &image, QImage &modImage, bool reverse, *data1 = qRgba(r, g, b, a); } else if (type == Saturation || type == HueShift) { clr.setRgb(color1); clr.hsv(&h, &s, &v); mod = (channel == Red) ? qRed(color2) : (channel == Green) ? qGreen(color2) : (channel == Blue) ? qBlue(color2) : (channel == Gray) ? qGray(color2) : 0; mod = mod*factor/50; if (type == Saturation) { s -= s * mod/256; if (s<0) s=0; if (s>255) s=255; } else { // HueShift h += mod; while(h<0) h+=360; h %= 360; } clr.setHsv(h, s, v); a = qAlpha(*data1); *data1 = clr.rgb() | ((uint)(a & 0xff) << 24); } data1++; data2++; data2b++; x++; if ( (x%x2) ==0) { data2 -= x2; data2b -= x2; } } } return image; } //====================================================================== // // Blend effects // //====================================================================== // Nice and fast direct pixel manipulation QImage& OImageEffect::blend(const QColor& clr, QImage& dst, float opacity) { if (dst.width() <= 0 || dst.height() <= 0) return dst; if (opacity < 0.0 || opacity > 1.0) { - qDebug( "WARNING: OImageEffect::blend : invalid opacity. Range [0, 1] "); + odebug << "WARNING: OImageEffect::blend : invalid opacity. Range [0, 1] " << oendl; return dst; } int depth = dst.depth(); if (depth != 32) dst = dst.convertDepth(32); int pixels = dst.width() * dst.height(); int rcol, gcol, bcol; clr.rgb(&rcol, &gcol, &bcol); #ifdef WORDS_BIGENDIAN // ARGB (skip alpha) register unsigned char *data = (unsigned char *)dst.bits() + 1; #else // BGRA register unsigned char *data = (unsigned char *)dst.bits(); #endif for (register int i=0; i<pixels; i++) { #ifdef WORDS_BIGENDIAN *(data++) += (unsigned char)((rcol - *data) * opacity); *(data++) += (unsigned char)((gcol - *data) * opacity); *(data++) += (unsigned char)((bcol - *data) * opacity); #else *(data++) += (unsigned char)((bcol - *data) * opacity); *(data++) += (unsigned char)((gcol - *data) * opacity); *(data++) += (unsigned char)((rcol - *data) * opacity); #endif data++; // skip alpha } return dst; } // Nice and fast direct pixel manipulation QImage& OImageEffect::blend(QImage& src, QImage& dst, float opacity) { if (src.width() <= 0 || src.height() <= 0) return dst; if (dst.width() <= 0 || dst.height() <= 0) return dst; if (src.width() != dst.width() || src.height() != dst.height()) { - qDebug( "WARNING: OImageEffect::blend : src and destination images are not the same size" ); + odebug << "WARNING: OImageEffect::blend : src and destination images are not the same size" << oendl; return dst; } if (opacity < 0.0 || opacity > 1.0) { - qDebug( "WARNING: OImageEffect::blend : invalid opacity. Range [0, 1]" ); + odebug << "WARNING: OImageEffect::blend : invalid opacity. Range [0, 1]" << oendl; return dst; } if (src.depth() != 32) src = src.convertDepth(32); if (dst.depth() != 32) dst = dst.convertDepth(32); int pixels = src.width() * src.height(); #ifdef WORDS_BIGENDIAN // ARGB (skip alpha) register unsigned char *data1 = (unsigned char *)dst.bits() + 1; register unsigned char *data2 = (unsigned char *)src.bits() + 1; #else // BGRA register unsigned char *data1 = (unsigned char *)dst.bits(); register unsigned char *data2 = (unsigned char *)src.bits(); #endif for (register int i=0; i<pixels; i++) { #ifdef WORDS_BIGENDIAN *(data1++) += (unsigned char)((*(data2++) - *data1) * opacity); *(data1++) += (unsigned char)((*(data2++) - *data1) * opacity); *(data1++) += (unsigned char)((*(data2++) - *data1) * opacity); #else *(data1++) += (unsigned char)((*(data2++) - *data1) * opacity); *(data1++) += (unsigned char)((*(data2++) - *data1) * opacity); *(data1++) += (unsigned char)((*(data2++) - *data1) * opacity); #endif data1++; // skip alpha data2++; } return dst; } QImage& OImageEffect::blend(QImage &image, float initial_intensity, const QColor &bgnd, GradientType eff, bool anti_dir) { if (image.width() == 0 || image.height() == 0 || image.depth()!=32 ) { - qDebug( "WARNING: OImageEffect::blend : invalid image" ); + odebug << "WARNING: OImageEffect::blend : invalid image" << oendl; return image; } int r_bgnd = bgnd.red(), g_bgnd = bgnd.green(), b_bgnd = bgnd.blue(); int r, g, b; int ind; unsigned int xi, xf, yi, yf; unsigned int a; // check the boundaries of the initial intesity param float unaffected = 1; if (initial_intensity > 1) initial_intensity = 1; if (initial_intensity < -1) initial_intensity = -1; if (initial_intensity < 0) { unaffected = 1. + initial_intensity; initial_intensity = 0; } float intensity = initial_intensity; float var = 1. - initial_intensity; if (anti_dir) { initial_intensity = intensity = 1.; var = -var; } register int x, y; unsigned int *data = (unsigned int *)image.bits(); int image_width = image.width(); //Those can't change int image_height = image.height(); if( eff == VerticalGradient || eff == HorizontalGradient ) { // set the image domain to apply the effect to xi = 0, xf = image_width; yi = 0, yf = image_height; if (eff == VerticalGradient) { if (anti_dir) yf = (int)(image_height * unaffected); else yi = (int)(image_height * (1 - unaffected)); } else { if (anti_dir) xf = (int)(image_width * unaffected); else xi = (int)(image_height * (1 - unaffected)); @@ -1088,127 +1089,127 @@ QImage& OImageEffect::blend(QImage &image, float initial_intensity, data[ind] = qRgba(r, g, b, a); } } //CT loop is doubled because of stupid central row/column issue. // other solution? for (x = 0; x < image_width / 2; x++) { xvar = var / image_width * (image_width - x*2/unaffected-1); for (y = 0; y < image_height / 2; y++) { yvar = var / image_height * (image_height - y*2/unaffected -1); if (eff == RectangleGradient) intensity = initial_intensity + QMAX(xvar, yvar); else intensity = initial_intensity + sqrt(xvar * xvar + yvar * yvar); if (intensity > 1) intensity = 1; if (intensity < 0) intensity = 0; //SW ind = x + image_width * (image_height - y -1) ; r = qRed (data[ind]) + (int)(intensity * (r_bgnd - qRed (data[ind]))); g = qGreen(data[ind]) + (int)(intensity * (g_bgnd - qGreen(data[ind]))); b = qBlue (data[ind]) + (int)(intensity * (b_bgnd - qBlue (data[ind]))); if (r > 255) r = 255; if (r < 0 ) r = 0; if (g > 255) g = 255; if (g < 0 ) g = 0; if (b > 255) b = 255; if (b < 0 ) b = 0; a = qAlpha(data[ind]); data[ind] = qRgba(r, g, b, a); //SE ind = image_width-x-1 + image_width * (image_height - y - 1) ; r = qRed (data[ind]) + (int)(intensity * (r_bgnd - qRed (data[ind]))); g = qGreen(data[ind]) + (int)(intensity * (g_bgnd - qGreen(data[ind]))); b = qBlue (data[ind]) + (int)(intensity * (b_bgnd - qBlue (data[ind]))); if (r > 255) r = 255; if (r < 0 ) r = 0; if (g > 255) g = 255; if (g < 0 ) g = 0; if (b > 255) b = 255; if (b < 0 ) b = 0; a = qAlpha(data[ind]); data[ind] = qRgba(r, g, b, a); } } } - else qDebug( "OImageEffect::blend effect not implemented" ); + else odebug << "OImageEffect::blend effect not implemented" << oendl; return image; } // Not very efficient as we create a third big image... // QImage& OImageEffect::blend(QImage &image1, QImage &image2, GradientType gt, int xf, int yf) { if (image1.width() == 0 || image1.height() == 0 || image2.width() == 0 || image2.height() == 0) return image1; QImage image3; image3 = OImageEffect::unbalancedGradient(image1.size(), QColor(0,0,0), QColor(255,255,255), gt, xf, yf, 0); return blend(image1,image2,image3, Red); // Channel to use is arbitrary } // Blend image2 into image1, using an RBG channel of blendImage // QImage& OImageEffect::blend(QImage &image1, QImage &image2, QImage &blendImage, RGBComponent channel) { if (image1.width() == 0 || image1.height() == 0 || image2.width() == 0 || image2.height() == 0 || blendImage.width() == 0 || blendImage.height() == 0) { - qDebug( "OImageEffect::blend effect invalid image" ); + odebug << "OImageEffect::blend effect invalid image" << oendl; return image1; } int r, g, b; int ind1, ind2, ind3; unsigned int x1, x2, x3, y1, y2, y3; unsigned int a; register int x, y; // for image1 and image2, we only handle depth 32 if (image1.depth()<32) image1 = image1.convertDepth(32); if (image2.depth()<32) image2 = image2.convertDepth(32); // for blendImage, we handle depth 8 and 32 if (blendImage.depth()<8) blendImage = blendImage.convertDepth(8); unsigned int *colorTable3 = (blendImage.depth()==8) ? blendImage.colorTable():0; unsigned int *data1 = (unsigned int *)image1.bits(); unsigned int *data2 = (unsigned int *)image2.bits(); unsigned int *data3 = (unsigned int *)blendImage.bits(); unsigned char *data3b = (unsigned char *)blendImage.bits(); unsigned int color3; x1 = image1.width(); y1 = image1.height(); x2 = image2.width(); y2 = image2.height(); x3 = blendImage.width(); y3 = blendImage.height(); for (y = 0; y < (int)y1; y++) { ind1 = x1*y; ind2 = x2*(y%y2); ind3 = x3*(y%y3); x=0; while(x < (int)x1) { color3 = (colorTable3) ? colorTable3[data3b[ind3]] : data3[ind3]; a = (channel == Red) ? qRed(color3) : (channel == Green) ? qGreen(color3) : (channel == Blue) ? qBlue(color3) : qGray(color3); r = (a*qRed(data1[ind1]) + (256-a)*qRed(data2[ind2]))/256; g = (a*qGreen(data1[ind1]) + (256-a)*qGreen(data2[ind2]))/256; b = (a*qBlue(data1[ind1]) + (256-a)*qBlue(data2[ind2]))/256; @@ -1216,97 +1217,97 @@ QImage& OImageEffect::blend(QImage &image1, QImage &image2, data1[ind1] = qRgba(r, g, b, a); ind1++; ind2++; ind3++; x++; if ( (x%x2) ==0) ind2 -= x2; if ( (x%x3) ==0) ind3 -= x3; } } return image1; } //====================================================================== // // Hash effects // //====================================================================== unsigned int OImageEffect::lHash(unsigned int c) { unsigned char r = qRed(c), g = qGreen(c), b = qBlue(c), a = qAlpha(c); unsigned char nr, ng, nb; nr =(r >> 1) + (r >> 2); nr = nr > r ? 0 : nr; ng =(g >> 1) + (g >> 2); ng = ng > g ? 0 : ng; nb =(b >> 1) + (b >> 2); nb = nb > b ? 0 : nb; return qRgba(nr, ng, nb, a); } // ----------------------------------------------------------------------------- unsigned int OImageEffect::uHash(unsigned int c) { unsigned char r = qRed(c), g = qGreen(c), b = qBlue(c), a = qAlpha(c); unsigned char nr, ng, nb; nr = r + (r >> 3); nr = nr < r ? ~0 : nr; ng = g + (g >> 3); ng = ng < g ? ~0 : ng; nb = b + (b >> 3); nb = nb < b ? ~0 : nb; return qRgba(nr, ng, nb, a); } // ----------------------------------------------------------------------------- QImage& OImageEffect::hash(QImage &image, Lighting lite, unsigned int spacing) { if (image.width() == 0 || image.height() == 0) { - qDebug( "OImageEffect::hash effect invalid image" ); + odebug << "OImageEffect::hash effect invalid image" << oendl; return image; } register int x, y; unsigned int *data = (unsigned int *)image.bits(); unsigned int ind; //CT no need to do it if not enough space if ((lite == NorthLite || lite == SouthLite)&& (unsigned)image.height() < 2+spacing) return image; if ((lite == EastLite || lite == WestLite)&& (unsigned)image.height() < 2+spacing) return image; if (lite == NorthLite || lite == SouthLite) { for (y = 0 ; y < image.height(); y = y + 2 + spacing) { for (x = 0; x < image.width(); x++) { ind = x + image.width() * y; data[ind] = lite==NorthLite?uHash(data[ind]):lHash(data[ind]); ind = ind + image.width(); data[ind] = lite==NorthLite?lHash(data[ind]):uHash(data[ind]); } } } else if (lite == EastLite || lite == WestLite) { for (y = 0 ; y < image.height(); y++) { for (x = 0; x < image.width(); x = x + 2 + spacing) { ind = x + image.width() * y; data[ind] = lite==EastLite?uHash(data[ind]):lHash(data[ind]); ind++; data[ind] = lite==EastLite?lHash(data[ind]):uHash(data[ind]); } } } else if (lite == NWLite || lite == SELite) { for (y = 0 ; y < image.height(); y++) { for (x = 0; x < (int)(image.width() - ((y & 1)? 1 : 0) * spacing); x = x + 2 + spacing) { ind = x + image.width() * y + ((y & 1)? 1 : 0); data[ind] = lite==NWLite?uHash(data[ind]):lHash(data[ind]); ind++; @@ -1724,97 +1725,97 @@ QImage& OImageEffect::dither(QImage &img, const QColor *palette, int size) img = dImage; return img; } int OImageEffect::nearestColor( int r, int g, int b, const QColor *palette, int size ) { if (palette == 0) return 0; int dr = palette[0].red() - r; int dg = palette[0].green() - g; int db = palette[0].blue() - b; int minDist = dr*dr + dg*dg + db*db; int nearest = 0; for (int i = 1; i < size; i++ ) { dr = palette[i].red() - r; dg = palette[i].green() - g; db = palette[i].blue() - b; int dist = dr*dr + dg*dg + db*db; if ( dist < minDist ) { minDist = dist; nearest = i; } } return nearest; } bool OImageEffect::blend( const QImage & upper, const QImage & lower, QImage & output ) { if ( upper.width() > lower.width() || upper.height() > lower.height() || upper.depth() != 32 || lower.depth() != 32 ) { - qDebug( "OImageEffect::blend : Sizes not correct" ); + odebug << "OImageEffect::blend : Sizes not correct" << oendl; return false; } output = lower.copy(); register uchar *i, *o; register int a; register int col; register int w = upper.width(); int row(upper.height() - 1); do { i = upper.scanLine(row); o = output.scanLine(row); col = w << 2; --col; do { while (!(a = i[col]) && (col != 3)) { --col; --col; --col; --col; } --col; o[col] += ((i[col] - o[col]) * a) >> 8; --col; o[col] += ((i[col] - o[col]) * a) >> 8; --col; o[col] += ((i[col] - o[col]) * a) >> 8; } while (col--); } while (row--); return true; } #if 0 // Not yet... bool OImageEffect::blend( const QImage & upper, const QImage & lower, QImage & output, const QRect & destRect @@ -1941,97 +1942,97 @@ bool OImageEffect::blendOnLower( #ifndef WORDS_BIGENDIAN --i; --b; *b += ( ((*i - *b) * a) >> 8 ); --i; --b; *b += ( ((*i - *b) * a) >> 8 ); --i; --b; *b += ( ((*i - *b) * a) >> 8 ); --i; --b; #else *b += ( ((*i - *b) * a) >> 8 ); --i; --b; *b += ( ((*i - *b) * a) >> 8 ); --i; --b; *b += ( ((*i - *b) * a) >> 8 ); i -= 2; b -= 2; #endif } while (k--); } return true; } // For selected icons QImage& OImageEffect::selectedImage( QImage &img, const QColor &col ) { return blend( col, img, 0.5); } // // =================================================================== // Effects originally ported from ImageMagick for PixiePlus, plus a few // new ones. (mosfet 12/29/01) // =================================================================== // void OImageEffect::normalize(QImage &img) { int *histogram, threshold_intensity, intense; int x, y, i; unsigned int gray_value; unsigned int *normalize_map; unsigned int high, low; // allocate histogram and normalize map histogram = (int *)calloc(MaxRGB+1, sizeof(int)); normalize_map = (unsigned int *)malloc((MaxRGB+1)*sizeof(unsigned int)); if(!normalize_map || !histogram){ - qWarning("Unable to allocate normalize histogram and map"); + owarn << "Unable to allocate normalize histogram and map" << oendl; free(normalize_map); free(histogram); return; } // form histogram if(img.depth() > 8){ // DirectClass unsigned int *data; for(y=0; y < img.height(); ++y){ data = (unsigned int *)img.scanLine(y); for(x=0; x < img.width(); ++x){ gray_value = intensityValue(data[x]); histogram[gray_value]++; } } } else{ // PsudeoClass unsigned char *data; unsigned int *cTable = img.colorTable(); for(y=0; y < img.height(); ++y){ data = (unsigned char *)img.scanLine(y); for(x=0; x < img.width(); ++x){ gray_value = intensityValue(*(cTable+data[x])); histogram[gray_value]++; } } } // find histogram boundaries by locating the 1 percent levels threshold_intensity = (img.width()*img.height())/100; intense = 0; for(low=0; low < MaxRGB; ++low){ intense+=histogram[low]; if(intense > threshold_intensity) break; } intense=0; for(high=MaxRGB; high != 0; --high){ intense+=histogram[high]; if(intense > threshold_intensity) break; } if (low == high){ // Unreasonable contrast; use zero threshold to determine boundaries. threshold_intensity=0; intense=0; for(low=0; low < MaxRGB; ++low){ @@ -2057,228 +2058,228 @@ void OImageEffect::normalize(QImage &img) else{ if(i > (int) high) normalize_map[i]=MaxRGB; else normalize_map[i]=(MaxRGB-1)*(i-low)/(high-low); } } // Normalize if(img.depth() > 8){ // DirectClass unsigned int *data; for(y=0; y < img.height(); ++y){ data = (unsigned int *)img.scanLine(y); for(x=0; x < img.width(); ++x){ data[x] = qRgba(normalize_map[qRed(data[x])], normalize_map[qGreen(data[x])], normalize_map[qBlue(data[x])], qAlpha(data[x])); } } } else{ // PsudeoClass int colors = img.numColors(); unsigned int *cTable = img.colorTable(); for(i=0; i < colors; ++i){ cTable[i] = qRgba(normalize_map[qRed(cTable[i])], normalize_map[qGreen(cTable[i])], normalize_map[qBlue(cTable[i])], qAlpha(cTable[i])); } } free(histogram); free(normalize_map); } void OImageEffect::equalize(QImage &img) { int *histogram, *map, *equalize_map; int x, y, i, j; unsigned int high, low; // allocate histogram and maps histogram = (int *)calloc(MaxRGB+1, sizeof(int)); map = (int *)malloc((MaxRGB+1)*sizeof(unsigned int)); equalize_map = (int *)malloc((MaxRGB+1)*sizeof(unsigned int)); if(!histogram || !map || !equalize_map){ - qWarning("Unable to allocate equalize histogram and maps"); + owarn << "Unable to allocate equalize histogram and maps" << oendl; free(histogram); free(map); free(equalize_map); return; } // form histogram if(img.depth() > 8){ // DirectClass unsigned int *data; for(y=0; y < img.height(); ++y){ data = (unsigned int *)img.scanLine(y); for(x=0; x < img.width(); ++x){ histogram[intensityValue(data[x])]++; } } } else{ // PsudeoClass unsigned char *data; unsigned int *cTable = img.colorTable(); for(y=0; y < img.height(); ++y){ data = (unsigned char *)img.scanLine(y); for(x=0; x < img.width(); ++x){ histogram[intensityValue(*(cTable+data[x]))]++; } } } // integrate the histogram to get the equalization map. j=0; for(i=0; i <= MaxRGB; i++){ j+=histogram[i]; map[i]=j; } free(histogram); if(map[MaxRGB] == 0){ free(equalize_map); free(map); return; } // equalize low=map[0]; high=map[MaxRGB]; for(i=0; i <= MaxRGB; i++) equalize_map[i]=(unsigned int) ((((double) (map[i]-low))*MaxRGB)/QMAX(high-low,1)); free(map); // stretch the histogram if(img.depth() > 8){ // DirectClass unsigned int *data; for(y=0; y < img.height(); ++y){ data = (unsigned int *)img.scanLine(y); for(x=0; x < img.width(); ++x){ data[x] = qRgba(equalize_map[qRed(data[x])], equalize_map[qGreen(data[x])], equalize_map[qBlue(data[x])], qAlpha(data[x])); } } } else{ // PsudeoClass int colors = img.numColors(); unsigned int *cTable = img.colorTable(); for(i=0; i < colors; ++i){ cTable[i] = qRgba(equalize_map[qRed(cTable[i])], equalize_map[qGreen(cTable[i])], equalize_map[qBlue(cTable[i])], qAlpha(cTable[i])); } } free(equalize_map); } QImage OImageEffect::sample(QImage &src, int w, int h) { if(w == src.width() && h == src.height()) return(src); double *x_offset, *y_offset; int j, k, y; register int x; QImage dest(w, h, src.depth()); x_offset = (double *)malloc(w*sizeof(double)); y_offset = (double *)malloc(h*sizeof(double)); if(!x_offset || !y_offset){ - qWarning("Unable to allocate pixels buffer"); + owarn << "Unable to allocate pixels buffer" << oendl; free(x_offset); free(y_offset); return(src); } // init pixel offsets for(x=0; x < w; ++x) x_offset[x] = x*src.width()/((double)w); for(y=0; y < h; ++y) y_offset[y] = y*src.height()/((double)h); // sample each row if(src.depth() > 8){ // DirectClass source image unsigned int *srcData, *destData; unsigned int *pixels; pixels = (unsigned int *)malloc(src.width()*sizeof(unsigned int)); if(!pixels){ - qWarning("Unable to allocate pixels buffer"); + owarn << "Unable to allocate pixels buffer" << oendl; free(pixels); free(x_offset); free(y_offset); return(src); } j = (-1); for(y=0; y < h; ++y){ destData = (unsigned int *)dest.scanLine(y); if(j != y_offset[y]){ // read a scan line j = (int)(y_offset[y]); srcData = (unsigned int *)src.scanLine(j); (void)memcpy(pixels, srcData, src.width()*sizeof(unsigned int)); } // sample each column for(x=0; x < w; ++x){ k = (int)(x_offset[x]); destData[x] = pixels[k]; } } free(pixels); } else{ // PsudeoClass source image unsigned char *srcData, *destData; unsigned char *pixels; pixels = (unsigned char *)malloc(src.width()*sizeof(unsigned char)); if(!pixels){ - qWarning("Unable to allocate pixels buffer"); + owarn << "Unable to allocate pixels buffer" << oendl; free(pixels); free(x_offset); free(y_offset); return(src); } // copy colortable dest.setNumColors(src.numColors()); (void)memcpy(dest.colorTable(), src.colorTable(), src.numColors()*sizeof(unsigned int)); // sample image j = (-1); for(y=0; y < h; ++y){ destData = (unsigned char *)dest.scanLine(y); if(j != y_offset[y]){ // read a scan line j = (int)(y_offset[y]); srcData = (unsigned char *)src.scanLine(j); (void)memcpy(pixels, srcData, src.width()*sizeof(unsigned char)); } // sample each column for(x=0; x < w; ++x){ k = (int)(x_offset[x]); destData[x] = pixels[k]; } } free(pixels); } free(x_offset); free(y_offset); return(dest); } void OImageEffect::threshold(QImage &img, unsigned int threshold) { int i, count; unsigned int *data; if(img.depth() > 8){ // DirectClass count = img.width()*img.height(); data = (unsigned int *)img.bits(); } else{ // PsudeoClass count = img.numColors(); data = (unsigned int *)img.colorTable(); } for(i=0; i < count; ++i) data[i] = intensityValue(data[i]) < threshold ? Qt::black.rgb() : Qt::white.rgb(); } @@ -3027,97 +3028,97 @@ QImage OImageEffect::swirl(QImage &src, double degrees, // swirl factor = 1.0-sqrt(distance)/radius; sine = sin(degrees*factor*factor); cosine = cos(degrees*factor*factor); *q = interpolateColor(&src, (cosine*x_distance-sine*y_distance)/x_scale+x_center, (sine*x_distance+cosine*y_distance)/y_scale+y_center, background); } p++; q++; } } } return(dest); } QImage OImageEffect::wave(QImage &src, double amplitude, double wavelength, unsigned int background) { double *sine_map; int x, y; unsigned int *q; QImage dest(src.width(), src.height() + (int)(2*fabs(amplitude)), 32); // allocate sine map sine_map = (double *)malloc(dest.width()*sizeof(double)); if(!sine_map) return(src); for(x=0; x < dest.width(); ++x) sine_map[x]=fabs(amplitude)+amplitude*sin((2*M_PI*x)/wavelength); // wave image for(y=0; y < dest.height(); ++y){ q = (unsigned int *)dest.scanLine(y); for (x=0; x < dest.width(); x++){ *q=interpolateColor(&src, x, (int)(y-sine_map[x]), background); ++q; } } free(sine_map); return(dest); } QImage OImageEffect::oilPaint(QImage &src, int radius) { // TODO 8bpp src! if(src.depth() < 32){ - qWarning("Oil Paint source image < 32bpp. Convert before using!"); + owarn << "Oil Paint source image < 32bpp. Convert before using!" << oendl; return(src); } int j, k, i, x, y; unsigned int *histogram; unsigned int *s; unsigned int count; unsigned int *srcData, *destData; QImage dest(src); dest.detach(); histogram = (unsigned int *) malloc((MaxRGB+1)*sizeof(unsigned int)); if(!histogram) return(src); // paint each row k=0; for(y = radius; y < src.height(); ++y){ srcData = (unsigned int *)src.scanLine(y-radius); destData = (unsigned int *)dest.scanLine(y); srcData += radius*src.width()+radius; destData += radius; for(x=radius; x < src.width()-radius; ++x){ // determine most frequent color count = 0; for(i=0; i < MaxRGB+1; ++i) histogram[i] = 0; for(i=0; i < radius; ++i){ s = srcData-(radius-1)*src.width()-i-1; for(j =0; j < (2*i+1); ++j){ k = intensityValue(*s); histogram[k]++; if(histogram[k] > count){ *destData = *s; count = histogram[k]; } ++s; } s = srcData+(radius-i)*src.width()-i-1; for(j =0; j < (2*i+1); ++j){ k = intensityValue(*s); histogram[k]++; if(histogram[k] > count){ *destData = *s; count = histogram[k]; } ++s; } } |