diff options
Diffstat (limited to 'media/libwebp/src/dsp/enc.c')
| -rw-r--r-- | media/libwebp/src/dsp/enc.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/media/libwebp/src/dsp/enc.c b/media/libwebp/src/dsp/enc.c index 2ba97ba8d6..395ad05b0b 100644 --- a/media/libwebp/src/dsp/enc.c +++ b/media/libwebp/src/dsp/enc.c @@ -109,10 +109,6 @@ static WEBP_TSAN_IGNORE_FUNCTION void InitTables(void) { #define STORE(x, y, v) \ dst[(x) + (y) * BPS] = clip_8b(ref[(x) + (y) * BPS] + ((v) >> 3)) -static const int kC1 = 20091 + (1 << 16); -static const int kC2 = 35468; -#define MUL(a, b) (((a) * (b)) >> 16) - static WEBP_INLINE void ITransformOne(const uint8_t* ref, const int16_t* in, uint8_t* dst) { int C[4 * 4], *tmp; @@ -121,8 +117,10 @@ static WEBP_INLINE void ITransformOne(const uint8_t* ref, const int16_t* in, for (i = 0; i < 4; ++i) { // vertical pass const int a = in[0] + in[8]; const int b = in[0] - in[8]; - const int c = MUL(in[4], kC2) - MUL(in[12], kC1); - const int d = MUL(in[4], kC1) + MUL(in[12], kC2); + const int c = + WEBP_TRANSFORM_AC3_MUL2(in[4]) - WEBP_TRANSFORM_AC3_MUL1(in[12]); + const int d = + WEBP_TRANSFORM_AC3_MUL1(in[4]) + WEBP_TRANSFORM_AC3_MUL2(in[12]); tmp[0] = a + d; tmp[1] = b + c; tmp[2] = b - c; @@ -134,10 +132,12 @@ static WEBP_INLINE void ITransformOne(const uint8_t* ref, const int16_t* in, tmp = C; for (i = 0; i < 4; ++i) { // horizontal pass const int dc = tmp[0] + 4; - const int a = dc + tmp[8]; - const int b = dc - tmp[8]; - const int c = MUL(tmp[4], kC2) - MUL(tmp[12], kC1); - const int d = MUL(tmp[4], kC1) + MUL(tmp[12], kC2); + const int a = dc + tmp[8]; + const int b = dc - tmp[8]; + const int c = + WEBP_TRANSFORM_AC3_MUL2(tmp[4]) - WEBP_TRANSFORM_AC3_MUL1(tmp[12]); + const int d = + WEBP_TRANSFORM_AC3_MUL1(tmp[4]) + WEBP_TRANSFORM_AC3_MUL2(tmp[12]); STORE(0, i, a + d); STORE(1, i, b + c); STORE(2, i, b - c); @@ -222,7 +222,6 @@ static void FTransformWHT_C(const int16_t* in, int16_t* out) { } #endif // !WEBP_NEON_OMIT_C_CODE -#undef MUL #undef STORE //------------------------------------------------------------------------------ |