diff options
Diffstat (limited to 'third_party/aom/aom_dsp/x86/obmc_intrinsic_ssse3.h')
| -rw-r--r-- | third_party/aom/aom_dsp/x86/obmc_intrinsic_ssse3.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/third_party/aom/aom_dsp/x86/obmc_intrinsic_ssse3.h b/third_party/aom/aom_dsp/x86/obmc_intrinsic_ssse3.h index a3535f985..48486c6c4 100644 --- a/third_party/aom/aom_dsp/x86/obmc_intrinsic_ssse3.h +++ b/third_party/aom/aom_dsp/x86/obmc_intrinsic_ssse3.h @@ -9,8 +9,8 @@ * PATENTS file, you can obtain it at www.aomedia.org/license/patent. */ -#ifndef AOM_DSP_X86_OBMC_INTRINSIC_SSSE3_H_ -#define AOM_DSP_X86_OBMC_INTRINSIC_SSSE3_H_ +#ifndef AOM_AOM_DSP_X86_OBMC_INTRINSIC_SSSE3_H_ +#define AOM_AOM_DSP_X86_OBMC_INTRINSIC_SSSE3_H_ #include <immintrin.h> @@ -42,4 +42,13 @@ static INLINE int64_t xx_hsum_epi32_si64(__m128i v_d) { return xx_hsum_epi64_si64(_mm_add_epi64(v_0_q, v_1_q)); } -#endif // AOM_DSP_X86_OBMC_INTRINSIC_SSSE3_H_ +// This is equivalent to ROUND_POWER_OF_TWO_SIGNED(v_val_d, bits) +static INLINE __m128i xx_roundn_epi32(__m128i v_val_d, int bits) { + const __m128i v_bias_d = _mm_set1_epi32((1 << bits) >> 1); + const __m128i v_sign_d = _mm_srai_epi32(v_val_d, 31); + const __m128i v_tmp_d = + _mm_add_epi32(_mm_add_epi32(v_val_d, v_bias_d), v_sign_d); + return _mm_srai_epi32(v_tmp_d, bits); +} + +#endif // AOM_AOM_DSP_X86_OBMC_INTRINSIC_SSSE3_H_ |