diff options
Diffstat (limited to 'vpx_dsp/x86/avg_intrin_sse2.c')
| -rw-r--r-- | vpx_dsp/x86/avg_intrin_sse2.c | 53 |
1 files changed, 45 insertions, 8 deletions
diff --git a/vpx_dsp/x86/avg_intrin_sse2.c b/vpx_dsp/x86/avg_intrin_sse2.c index 015c11a1f..4447dfab7 100644 --- a/vpx_dsp/x86/avg_intrin_sse2.c +++ b/vpx_dsp/x86/avg_intrin_sse2.c @@ -15,6 +15,14 @@ #include "vpx_dsp/x86/bitdepth_conversion_sse2.h" #include "vpx_ports/mem.h" +static INLINE void sign_extend_16bit_to_32bit_sse2(__m128i in, __m128i zero, + __m128i *out_lo, + __m128i *out_hi) { + const __m128i sign_bits = _mm_cmplt_epi16(in, zero); + *out_lo = _mm_unpacklo_epi16(in, sign_bits); + *out_hi = _mm_unpackhi_epi16(in, sign_bits); +} + void vpx_minmax_8x8_sse2(const uint8_t *s, int p, const uint8_t *d, int dp, int *min, int *max) { __m128i u0, s0, d0, diff, maxabsdiff, minabsdiff, negdiff, absdiff0, absdiff; @@ -400,6 +408,12 @@ void vpx_hadamard_32x32_sse2(const int16_t *src_diff, ptrdiff_t src_stride, int16_t *t_coeff = coeff; #endif int idx; + __m128i coeff0_lo, coeff1_lo, coeff2_lo, coeff3_lo, b0_lo, b1_lo, b2_lo, + b3_lo; + __m128i coeff0_hi, coeff1_hi, coeff2_hi, coeff3_hi, b0_hi, b1_hi, b2_hi, + b3_hi; + __m128i b0, b1, b2, b3; + const __m128i zero = _mm_setzero_si128(); for (idx = 0; idx < 4; ++idx) { const int16_t *src_ptr = src_diff + (idx >> 1) * 16 * src_stride + (idx & 0x01) * 16; @@ -413,15 +427,38 @@ void vpx_hadamard_32x32_sse2(const int16_t *src_diff, ptrdiff_t src_stride, __m128i coeff2 = _mm_load_si128((const __m128i *)(t_coeff + 512)); __m128i coeff3 = _mm_load_si128((const __m128i *)(t_coeff + 768)); - __m128i b0 = _mm_add_epi16(coeff0, coeff1); - __m128i b1 = _mm_sub_epi16(coeff0, coeff1); - __m128i b2 = _mm_add_epi16(coeff2, coeff3); - __m128i b3 = _mm_sub_epi16(coeff2, coeff3); + // Sign extend 16 bit to 32 bit. + sign_extend_16bit_to_32bit_sse2(coeff0, zero, &coeff0_lo, &coeff0_hi); + sign_extend_16bit_to_32bit_sse2(coeff1, zero, &coeff1_lo, &coeff1_hi); + sign_extend_16bit_to_32bit_sse2(coeff2, zero, &coeff2_lo, &coeff2_hi); + sign_extend_16bit_to_32bit_sse2(coeff3, zero, &coeff3_lo, &coeff3_hi); + + b0_lo = _mm_add_epi32(coeff0_lo, coeff1_lo); + b0_hi = _mm_add_epi32(coeff0_hi, coeff1_hi); + + b1_lo = _mm_sub_epi32(coeff0_lo, coeff1_lo); + b1_hi = _mm_sub_epi32(coeff0_hi, coeff1_hi); + + b2_lo = _mm_add_epi32(coeff2_lo, coeff3_lo); + b2_hi = _mm_add_epi32(coeff2_hi, coeff3_hi); + + b3_lo = _mm_sub_epi32(coeff2_lo, coeff3_lo); + b3_hi = _mm_sub_epi32(coeff2_hi, coeff3_hi); + + b0_lo = _mm_srai_epi32(b0_lo, 2); + b1_lo = _mm_srai_epi32(b1_lo, 2); + b2_lo = _mm_srai_epi32(b2_lo, 2); + b3_lo = _mm_srai_epi32(b3_lo, 2); + + b0_hi = _mm_srai_epi32(b0_hi, 2); + b1_hi = _mm_srai_epi32(b1_hi, 2); + b2_hi = _mm_srai_epi32(b2_hi, 2); + b3_hi = _mm_srai_epi32(b3_hi, 2); - b0 = _mm_srai_epi16(b0, 2); - b1 = _mm_srai_epi16(b1, 2); - b2 = _mm_srai_epi16(b2, 2); - b3 = _mm_srai_epi16(b3, 2); + b0 = _mm_packs_epi32(b0_lo, b0_hi); + b1 = _mm_packs_epi32(b1_lo, b1_hi); + b2 = _mm_packs_epi32(b2_lo, b2_hi); + b3 = _mm_packs_epi32(b3_lo, b3_hi); coeff0 = _mm_add_epi16(b0, b2); coeff1 = _mm_add_epi16(b1, b3); |