Release 10.86.20

git-svn-id: http://svn.code.sf.net/p/netpbm/code/stable@4059 9d0c8265-081b-0410-96cb-a4ca84ce46f8

2 files changed, 9 insertions, 2 deletions

diff --git a/converter/other/pnmtopng.c b/converter/other/pnmtopng.c
index 60b8276b..ed852fd0 100644
--- a/converter/other/pnmtopng.c
+++ b/converter/other/pnmtopng.c
@@ -961,6 +961,8 @@ tryTransparentColor(FILE *     const ifp,
             }
         }
     }
+    *singleColorIsTransP = singleColorIsTrans;
+
     pnm_freerow(xelrow);
 }
 
@@ -1468,9 +1470,14 @@ 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;
diff --git a/converter/other/pnmtops.c b/converter/other/pnmtops.c
index de0dfd8d..a286bc1e 100644
--- a/converter/other/pnmtops.c
+++ b/converter/other/pnmtops.c
@@ -1012,8 +1012,8 @@ validateComputableBoundingBox(float const scols,
     float const bbWidth  = llx + scols + 0.5;
     float const bbHeight = lly + srows + 0.5;
 
-    if (bbHeight < INT_MIN || bbHeight > INT_MAX ||
-        bbWidth  < INT_MIN || bbWidth  > INT_MAX)
+    if ((double)bbHeight < INT_MIN || (double)bbHeight > INT_MAX ||
+        (double)bbWidth  < INT_MIN || (double)bbWidth  > INT_MAX)
         pm_error("Bounding box dimensions %.1f x %.1f are too large "
                  "for computations.  "
                  "This probably means input image width, height, "