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lossless, VP8LTransformColor_C: make sure no overflow happens with colors.

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Change-Id: Iec0d07cf1188ba96391cdb1b62131fc1469dfac6
This commit is contained in:
Vincent Rabaud 2017-05-24 11:34:40 +02:00
parent af6deaffa0
commit e4eb458741
1 changed files with 2 additions and 2 deletions
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4
src/dsp/lossless_enc.c
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@ -520,8 +520,8 @@ void VP8LTransformColor_C(const VP8LMultipliers* const m, uint32_t* data,
const uint32_t argb = data[i];
const uint32_t green = argb >> 8;
const uint32_t red = argb >> 16;
int new_red = red;
int new_blue = argb;
int new_red = red & 0xff;
int new_blue = argb & 0xff;
new_red -= ColorTransformDelta(m->green_to_red_, green);
new_red &= 0xff;
new_blue -= ColorTransformDelta(m->green_to_blue_, green);