Release 10.73.35

git-svn-id: http://svn.code.sf.net/p/netpbm/code/super_stable@4072 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 7 insertions, 0 deletions

diff --git a/converter/other/pnmtopng.c b/converter/other/pnmtopng.c
index 3899a9d2..009d8bb8 100644
--- a/converter/other/pnmtopng.c
+++ b/converter/other/pnmtopng.c
@@ -962,6 +962,8 @@ tryTransparentColor(FILE *     const ifp,
             }
         }
     }  
+    *singleColorIsTransP = singleColorIsTrans;
+
     pnm_freerow(xelrow);
 }
 
@@ -1469,9 +1471,14 @@ computeUnsortedAlphaPalette(FILE *           const ifP,
     int row;
     xel * xelrow;
     unsigned int alphaColorPairCnt;
+        /* Number of different alpha/color pairs we've seen so far as we
+           iterate through the image.
+        */
 
     cht = ppm_colorhisttocolorhash(chv, colors);
 
+    /* We have not seen any alphas of any color yet. */
+    alphaColorPairCnt = 0;
     for (colorIndex = 0; colorIndex < colors; ++colorIndex) {
         alphasOfColor[colorIndex] = NULL;
         alphasOfColorCnt[colorIndex] = 0;