diff options
Diffstat (limited to 'media/libwebp/src/dsp/dec_neon.c')
| -rw-r--r-- | media/libwebp/src/dsp/dec_neon.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/media/libwebp/src/dsp/dec_neon.c b/media/libwebp/src/dsp/dec_neon.c index 22784cf15a..83b3a1f970 100644 --- a/media/libwebp/src/dsp/dec_neon.c +++ b/media/libwebp/src/dsp/dec_neon.c @@ -1000,8 +1000,9 @@ static void HFilter8i_NEON(uint8_t* u, uint8_t* v, int stride, // libwebp adds 1 << 16 to cospi8sqrt2minus1 (kC1). However, this causes the // same issue with kC1 and vqdmulh that we work around by down shifting kC2 -static const int16_t kC1 = 20091; -static const int16_t kC2 = 17734; // half of kC2, actually. See comment above. +static const int16_t kC1 = WEBP_TRANSFORM_AC3_C1; +static const int16_t kC2 = + WEBP_TRANSFORM_AC3_C2 / 2; // half of kC2, actually. See comment above. #if defined(WEBP_USE_INTRINSICS) static WEBP_INLINE void Transpose8x2_NEON(const int16x8_t in0, @@ -1255,15 +1256,12 @@ static void TransformWHT_NEON(const int16_t* in, int16_t* out) { //------------------------------------------------------------------------------ -#define MUL(a, b) (((a) * (b)) >> 16) static void TransformAC3_NEON(const int16_t* in, uint8_t* dst) { - static const int kC1_full = 20091 + (1 << 16); - static const int kC2_full = 35468; const int16x4_t A = vld1_dup_s16(in); - const int16x4_t c4 = vdup_n_s16(MUL(in[4], kC2_full)); - const int16x4_t d4 = vdup_n_s16(MUL(in[4], kC1_full)); - const int c1 = MUL(in[1], kC2_full); - const int d1 = MUL(in[1], kC1_full); + const int16x4_t c4 = vdup_n_s16(WEBP_TRANSFORM_AC3_MUL2(in[4])); + const int16x4_t d4 = vdup_n_s16(WEBP_TRANSFORM_AC3_MUL1(in[4])); + const int c1 = WEBP_TRANSFORM_AC3_MUL2(in[1]); + const int d1 = WEBP_TRANSFORM_AC3_MUL1(in[1]); const uint64_t cd = (uint64_t)( d1 & 0xffff) << 0 | (uint64_t)( c1 & 0xffff) << 16 | (uint64_t)(-c1 & 0xffff) << 32 | @@ -1274,7 +1272,6 @@ static void TransformAC3_NEON(const int16_t* in, uint8_t* dst) { const int16x8_t m2_m3 = vcombine_s16(vqsub_s16(B, c4), vqsub_s16(B, d4)); Add4x4_NEON(m0_m1, m2_m3, dst); } -#undef MUL //------------------------------------------------------------------------------ // 4x4 |