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Merge pull request #2095 from dreampiggy/fix_progressive_webp_decode_y_zero 

Fix WebP progressive decoding may do extra calculate
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Bogdan Poplauschi 2017-11-05 12:24:39 +02:00 committed by GitHub
parent 821c2f3b8a 98f020f610
commit 8f04ef7394
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 1 deletions
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SDWebImage/SDWebImageWebPCoder.m
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@ -166,7 +166,8 @@
int last_y = 0;
int stride = 0;
uint8_t *rgba = WebPIDecGetRGB(_idec, &last_y, &width, &height, &stride);
if (width + height > 0 && height >= last_y) {
// last_y may be 0, means no enough bitmap data to decode, ignore this
if (width + height > 0 && last_y > 0 && height >= last_y) {
// Construct a UIImage from the decoded RGBA value array
CGDataProviderRef provider =
CGDataProviderCreateWithData(NULL, rgba, 0, NULL);