fixed un-premultiply routines

diff --git a/lib/modules/swfbits.c b/lib/modules/swfbits.c
index 30f2e42..0af32c7 100644 (file)
--- a/lib/modules/swfbits.c
+++ b/lib/modules/swfbits.c
@@ -150,8 +150,10 @@ int swf_ImageGetNumberOfPaletteEntries(RGBA*img, int width, int height, RGBA*pal
        }
        lastcol32 = col32;
     }
-    if(palette_overflow)
+    if(palette_overflow) {
+       free(pal);
        return width*height;
+    }
     if(palette) {
        int i = 0;
        for(t=0;t<256;t++) {
@@ -895,9 +897,16 @@ RGBA *swf_DefineLosslessBitsTagToImage(TAG * tag, int *dwidth, int *dheight)
                       dest[pos2].r = data[pos + 1];
                       dest[pos2].g = data[pos + 2];
                       dest[pos2].b = data[pos + 3];*/
-                   dest[pos2].r = ((int)data[pos + 1]*255)/(int)data[pos+0];
-                   dest[pos2].g = ((int)data[pos + 2]*255)/(int)data[pos+0];
-                   dest[pos2].b = ((int)data[pos + 3]*255)/(int)data[pos+0];
+                   int alpha = data[pos+0];
+                   if(alpha) {
+                       dest[pos2].r = ((int)data[pos + 1]*255)/alpha;
+                       dest[pos2].g = ((int)data[pos + 2]*255)/alpha;
+                       dest[pos2].b = ((int)data[pos + 3]*255)/alpha;
+                   } else {
+                       dest[pos2].r = data[pos + 1];
+                       dest[pos2].g = data[pos + 2];
+                       dest[pos2].b = data[pos + 3];
+                   }
                    dest[pos2].a = data[pos + 0];       //alpha
                    pos2++;
                    pos += 4;