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Merge branch 'rygorous-fix-issue-276' into dev

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Fabian Giesen 2017-07-22 19:42:23 -07:00
commit 282576fbfb
1 changed files with 4 additions and 5 deletions
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stb_image.h
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@ -4299,11 +4299,10 @@ static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 r
img_width_bytes = (((img_n * x * depth) + 7) >> 3);
img_len = (img_width_bytes + 1) * y;
if (s->img_x == x && s->img_y == y) {
if (raw_len != img_len) return stbi__err("not enough pixels","Corrupt PNG");
} else { // interlaced:
if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG");
}
// we used to check for exact match between raw_len and img_len on non-interlaced PNGs,
// but issue #276 reported a PNG in the wild that had extra data at the end (all zeros),
// so just check for raw_len < img_len always.
if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG");
for (j=0; j < y; ++j) {
stbi_uc *cur = a->out + stride*j;