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Merge "Fix undefined signed shift."

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Pascal Massimino 2021-02-18 16:51:17 +00:00 committed by Gerrit Code Review
commit b78494a933
1 changed files with 3 additions and 2 deletions
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5
src/dsp/lossless_sse41.c
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@ -25,8 +25,9 @@
static void TransformColorInverse_SSE41(const VP8LMultipliers* const m, static void TransformColorInverse_SSE41(const VP8LMultipliers* const m,
const uint32_t* const src, const uint32_t* const src,
int num_pixels, uint32_t* dst) { int num_pixels, uint32_t* dst) {
#define CST(X) ((int32_t)((int8_t)m->X) << 3) // sign-extended multiplying constants, pre-shifted by 5.
const __m128i mults_rb = _mm_set1_epi32(CST(green_to_red_) << 16 | #define CST(X) (((int16_t)(m->X << 8)) >> 5) // sign-extend
const __m128i mults_rb = _mm_set1_epi32((uint32_t)CST(green_to_red_) << 16 |
(CST(green_to_blue_) & 0xffff)); (CST(green_to_blue_) & 0xffff));
const __m128i mults_b2 = _mm_set1_epi32(CST(red_to_blue_)); const __m128i mults_b2 = _mm_set1_epi32(CST(red_to_blue_));
#undef CST #undef CST