diff options
Diffstat (limited to 'vp9/encoder/x86/vp9_dct_ssse3.c')
| -rw-r--r-- | vp9/encoder/x86/vp9_dct_ssse3.c | 47 |
1 files changed, 30 insertions, 17 deletions
diff --git a/vp9/encoder/x86/vp9_dct_ssse3.c b/vp9/encoder/x86/vp9_dct_ssse3.c index bdc75e993..1c1005aee 100644 --- a/vp9/encoder/x86/vp9_dct_ssse3.c +++ b/vp9/encoder/x86/vp9_dct_ssse3.c @@ -293,7 +293,8 @@ void vp9_fdct8x8_quant_ssse3(const int16_t *input, int stride, if (!skip_block) { __m128i eob; - __m128i round, quant, dequant; + __m128i round, quant, dequant, thr; + int16_t nzflag; { __m128i coeff0, coeff1; @@ -368,6 +369,7 @@ void vp9_fdct8x8_quant_ssse3(const int16_t *input, int stride, // AC only loop index = 2; + thr = _mm_srai_epi16(dequant, 1); while (n_coeffs < 0) { __m128i coeff0, coeff1; { @@ -387,28 +389,39 @@ void vp9_fdct8x8_quant_ssse3(const int16_t *input, int stride, qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); - qcoeff0 = _mm_adds_epi16(qcoeff0, round); - qcoeff1 = _mm_adds_epi16(qcoeff1, round); - qtmp0 = _mm_mulhi_epi16(qcoeff0, quant); - qtmp1 = _mm_mulhi_epi16(qcoeff1, quant); + nzflag = _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff0, thr)) | + _mm_movemask_epi8(_mm_cmpgt_epi16(qcoeff1, thr)); - // Reinsert signs - qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign); - qcoeff1 = _mm_xor_si128(qtmp1, coeff1_sign); - qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); - qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); + if (nzflag) { + qcoeff0 = _mm_adds_epi16(qcoeff0, round); + qcoeff1 = _mm_adds_epi16(qcoeff1, round); + qtmp0 = _mm_mulhi_epi16(qcoeff0, quant); + qtmp1 = _mm_mulhi_epi16(qcoeff1, quant); - _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), qcoeff0); - _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, qcoeff1); + // Reinsert signs + qcoeff0 = _mm_xor_si128(qtmp0, coeff0_sign); + qcoeff1 = _mm_xor_si128(qtmp1, coeff1_sign); + qcoeff0 = _mm_sub_epi16(qcoeff0, coeff0_sign); + qcoeff1 = _mm_sub_epi16(qcoeff1, coeff1_sign); - coeff0 = _mm_mullo_epi16(qcoeff0, dequant); - coeff1 = _mm_mullo_epi16(qcoeff1, dequant); + _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), qcoeff0); + _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, qcoeff1); - _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), coeff0); - _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, coeff1); + coeff0 = _mm_mullo_epi16(qcoeff0, dequant); + coeff1 = _mm_mullo_epi16(qcoeff1, dequant); + + _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), coeff0); + _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, coeff1); + } else { + _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs), zero); + _mm_store_si128((__m128i*)(qcoeff_ptr + n_coeffs) + 1, zero); + + _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs), zero); + _mm_store_si128((__m128i*)(dqcoeff_ptr + n_coeffs) + 1, zero); + } } - { + if (nzflag) { // Scan for eob __m128i zero_coeff0, zero_coeff1; __m128i nzero_coeff0, nzero_coeff1; |