Every file in this commit has a memory leak of some kind or another. I think

all of them are minor and should not effect properly running code. But if I
were you I would give libstocks and the stockticker plugin in Today a wide
berth. That library is atrocious.

1 files changed, 4 insertions, 1 deletions

diff --git a/libopie2/opieui/oimageeffect.cpp b/libopie2/opieui/oimageeffect.cpp
index be47eb2..93719bc 100644
--- a/libopie2/opieui/oimageeffect.cpp
+++ b/libopie2/opieui/oimageeffect.cpp
@@ -1862,386 +1862,389 @@ bool OImageEffect::blend(
 //  output.setAlphaBuffer(true); // I should do some benchmarks to see if
         // this is worth the effort
 
   register QRgb *i, *o, *b;
 
   register int a;
   register int j,k;
   for (j=0; j<ch; j++)
   {
     b=reinterpret_cast<QRgb *>(&lower.scanLine(y+j) [ (x+cw) << 2 ]);
     i=reinterpret_cast<QRgb *>(&upper.scanLine(cy+j)[ (cx+cw) << 2 ]);
     o=reinterpret_cast<QRgb *>(&output.scanLine(j)  [ cw << 2 ]);
 
     k=cw-1;
     --b; --i; --o;
     do
     {
       while ( !(a=qAlpha(*i)) && k>0 )
       {
         i--;
         //*o=0;
         *o=*b;
         --o; --b;
         k--;
       };
 //      *o=0xFF;
       *o = qRgb(qRed(*b) + (((qRed(*i) - qRed(*b)) * a) >> 8),
                 qGreen(*b) + (((qGreen(*i) - qGreen(*b)) * a) >> 8),
                 qBlue(*b) + (((qBlue(*i) - qBlue(*b)) * a) >> 8));
       --i; --o; --b;
     } while (k--);
   }
 
   return true;
 }
 
 bool OImageEffect::blendOnLower(
     int x, int y,
     const QImage & upper,
     const QImage & lower
 )
 {
   int cx=0, cy=0, cw=upper.width(), ch=upper.height();
 
   if ( upper.depth() != 32 || lower.depth() != 32 ) return false;
   if ( x + cw > lower.width()  ||
       y + ch > lower.height() ||
       x < 0 || y < 0 )
   {
     if ( x > lower.width() || y > lower.height() ) return true;
     if ( upper.width()<=0 || upper.height() <= 0 ) return true;
     if ( lower.width()<=0 || lower.height() <= 0 ) return true;
 
     if (x<0) {cx=-x; cw+=x; x=0; };
     if (cw + x > lower.width()) { cw=lower.width()-x; };
     if (y<0) {cy=-y; ch+=y; y=0; };
     if (ch + y > lower.height()) { ch=lower.height()-y; };
 
     if ( cx >= upper.width() || cy >= upper.height() ) return true;
     if ( cw <= 0 || ch <= 0 ) return true;
   }
 
   register uchar *i, *b;
   register int a;
   register int k;
 
   for (int j=0; j<ch; j++)
   {
     b=&lower.scanLine(y+j) [ (x+cw) << 2 ];
     i=&upper.scanLine(cy+j)[ (cx+cw) << 2 ];
 
     k=cw-1;
     --b; --i;
     do
     {
 #ifndef WORDS_BIGENDIAN
       while ( !(a=*i) && k>0 )
 #else
       while ( !(a=*(i-3)) && k>0 )
 #endif
       {
         i-=4; b-=4; k--;
       };
 
 #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){
         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){
             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)
+        if(low == high) {
+            free(histogram);
+            free(normalize_map);
             return;  // zero span bound
+        }
     }
 
     // Stretch the histogram to create the normalized image mapping.
     for(i=0; i <= MaxRGB; i++){
         if (i < (int) low)
             normalize_map[i]=0;
         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){
         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){
         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){
             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){
             owarn << "Unable to allocate pixels buffer" << oendl;
             free(pixels);
             free(x_offset);
             free(y_offset);
             return(src);
         }
         // copy colortable