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| author | Chris Young <chris@unsatisfactorysoftware.co.uk> | 2013-01-05 21:11:31 +0000 |
|---|---|---|
| committer | Chris Young <chris@unsatisfactorysoftware.co.uk> | 2013-01-05 21:11:31 +0000 |
| commit | 3d74422216e1513bf651352a130ad49b9605bbf2 (patch) | |
| tree | 7eff8b278a7b25648a3249ee9598a873c46f72c7 | |
| parent | f30bcdde419565d50974a288c816aad30a412683 (diff) | |
| download | libsvgtiny-3d74422216e1513bf651352a130ad49b9605bbf2.tar.gz | |
Explicitly check if r0 or r1 are NaN, as if they are, on x86 the function evaluates as 0 (which is already handled), but on PPC the function evaluates to a negative value, causing the following for loop to become infinite.
| -rw-r--r-- | src/svgtiny_gradient.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/svgtiny_gradient.c b/src/svgtiny_gradient.c index 002c322..e330024 100644 --- a/src/svgtiny_gradient.c +++ b/src/svgtiny_gradient.c @@ -462,7 +462,13 @@ svgtiny_code svgtiny_add_path_linear_gradient(float *p, unsigned int n, gradient_norm_squared; /* determine steps from change in r */ - steps = ceilf(fabsf(r1 - r0) / 0.05); + + if(isnan(r0) || isnan(r1)) { + steps = 1; + } else { + steps = ceilf(fabsf(r1 - r0) / 0.05); + } + if (steps == 0) steps = 1; fprintf(stderr, "r0 %g, r1 %g, steps %i\n", |