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fixed a division by zero issue. 

* app/display/gimpdisplayshell-render.c: (compute_sample)
fixed a division by zero issue.

svn path=/trunk/; revision=23357
This commit is contained in:
Øyvind Kolås 2007-08-24 02:34:06 +00:00
parent 70e204d49d
commit 306e21b354
2 changed files with 25 additions and 4 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2007-08-24 Øyvind Kolås <pippin@gimp.org>
* app/display/gimpdisplayshell-render.c: (compute_sample)
fixed a division by zero issue.
2007-08-24 Michael Natterer <mitch@gimp.org>
* configure.in: applied patch from Tim Mooney which fixes

24
app/display/gimpdisplayshell-render.c
View File

@ -959,7 +959,10 @@ compute_sample (gint left_weight,
for (i=0; i<ALPHA; i++)
{
gint res = ((middle_weight * (
gint res;
if (a)
{
res = ((middle_weight * (
factors[0] * src[1][i] +
factors[1] * src[4][i] +
factors[2] * src[7][i]) +
@ -975,6 +978,11 @@ compute_sample (gint left_weight,
factors[8] * src[6][i])
) / a);
}
else
{
res = 0;
}
if (res < 0)
dest[i] = 0;
else if (res>255)
@ -1005,11 +1013,14 @@ compute_sample (gint left_weight,
a = (middle_weight * (factors[0]+factors[1]+factors[2]) +
right_weight * (factors[3]+factors[4]+factors[5]) +
left_weight * (factors[6]+factors[7]+factors[8]));
dest[ALPHA] = a/sum;
dest[ALPHA] = a/sum;
for (i=0; i<ALPHA; i++)
{
gint res = ((middle_weight * (
gint res;
if (a)
{
res = ((middle_weight * (
factors[0] * src[1][i] +
factors[1] * src[4][i] +
factors[2] * src[7][i]) +
@ -1025,6 +1036,11 @@ compute_sample (gint left_weight,
factors[8] * src[6][i])
) / a);
}
else
{
res = 0;
}
if (res < 0)
dest[i] = 0;
else if (res>255)