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| author | Moonchild <mcwerewolf@wolfbeast.com> | 2019-03-13 07:49:07 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-03-13 07:49:07 +0100 |
| commit | bf0413359245579e9509146d42cd5547e35da695 (patch) | |
| tree | 8218d4f60d9eccacbf42df8cb88094a082d401b4 /media/libwebp/utils/quant_levels_dec_utils.c | |
| parent | 51b821b3fdc5a7eab2369cb6a6680598a6264b08 (diff) | |
| parent | 709bc24e9110eba12f94cfcb8db00a8338ac4098 (diff) | |
| download | UXP-bf0413359245579e9509146d42cd5547e35da695.tar UXP-bf0413359245579e9509146d42cd5547e35da695.tar.gz UXP-bf0413359245579e9509146d42cd5547e35da695.tar.lz UXP-bf0413359245579e9509146d42cd5547e35da695.tar.xz UXP-bf0413359245579e9509146d42cd5547e35da695.zip | |
Merge pull request #998 from MoonchildProductions/master
Merge master into Sync-weave
Diffstat (limited to 'media/libwebp/utils/quant_levels_dec_utils.c')
| -rw-r--r-- | media/libwebp/utils/quant_levels_dec_utils.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/media/libwebp/utils/quant_levels_dec_utils.c b/media/libwebp/utils/quant_levels_dec_utils.c index 5c498382d..a60de3444 100644 --- a/media/libwebp/utils/quant_levels_dec_utils.c +++ b/media/libwebp/utils/quant_levels_dec_utils.c @@ -261,9 +261,15 @@ static void CleanupParams(SmoothParams* const p) { int WebPDequantizeLevels(uint8_t* const data, int width, int height, int stride, int strength) { - const int radius = 4 * strength / 100; + int radius = 4 * strength / 100; + if (strength < 0 || strength > 100) return 0; if (data == NULL || width <= 0 || height <= 0) return 0; // bad params + + // limit the filter size to not exceed the image dimensions + if (2 * radius + 1 > width) radius = (width - 1) >> 1; + if (2 * radius + 1 > height) radius = (height - 1) >> 1; + if (radius > 0) { SmoothParams p; memset(&p, 0, sizeof(p)); |