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Diffstat (limited to 'media/libaom/src/aom_dsp/x86/convolve_avx2.h')
| -rw-r--r-- | media/libaom/src/aom_dsp/x86/convolve_avx2.h | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/media/libaom/src/aom_dsp/x86/convolve_avx2.h b/media/libaom/src/aom_dsp/x86/convolve_avx2.h new file mode 100644 index 000000000..30253f65c --- /dev/null +++ b/media/libaom/src/aom_dsp/x86/convolve_avx2.h @@ -0,0 +1,199 @@ +/* + * Copyright (c) 2018, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#ifndef AOM_AOM_DSP_X86_CONVOLVE_AVX2_H_ +#define AOM_AOM_DSP_X86_CONVOLVE_AVX2_H_ + +// filters for 16 +DECLARE_ALIGNED(32, static const uint8_t, filt_global_avx2[]) = { + 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 0, 1, 1, + 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 2, 3, 3, 4, 4, 5, + 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 2, 3, 3, 4, 4, 5, 5, 6, 6, + 7, 7, 8, 8, 9, 9, 10, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, + 10, 11, 11, 12, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, + 12, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 6, 7, + 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14 +}; + +DECLARE_ALIGNED(32, static const uint8_t, filt_d4_global_avx2[]) = { + 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6, 0, 1, 2, 3, 1, 2, + 3, 4, 2, 3, 4, 5, 3, 4, 5, 6, 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, + 7, 8, 9, 10, 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10, +}; + +DECLARE_ALIGNED(32, static const uint8_t, filt4_d4_global_avx2[]) = { + 2, 3, 4, 5, 3, 4, 5, 6, 4, 5, 6, 7, 5, 6, 7, 8, + 2, 3, 4, 5, 3, 4, 5, 6, 4, 5, 6, 7, 5, 6, 7, 8, +}; + +static INLINE void prepare_coeffs_lowbd( + const InterpFilterParams *const filter_params, const int subpel_q4, + __m256i *const coeffs /* [4] */) { + const int16_t *const filter = av1_get_interp_filter_subpel_kernel( + filter_params, subpel_q4 & SUBPEL_MASK); + const __m128i coeffs_8 = _mm_loadu_si128((__m128i *)filter); + const __m256i filter_coeffs = _mm256_broadcastsi128_si256(coeffs_8); + + // right shift all filter co-efficients by 1 to reduce the bits required. + // This extra right shift will be taken care of at the end while rounding + // the result. + // Since all filter co-efficients are even, this change will not affect the + // end result + assert(_mm_test_all_zeros(_mm_and_si128(coeffs_8, _mm_set1_epi16(1)), + _mm_set1_epi16(0xffff))); + + const __m256i coeffs_1 = _mm256_srai_epi16(filter_coeffs, 1); + + // coeffs 0 1 0 1 0 1 0 1 + coeffs[0] = _mm256_shuffle_epi8(coeffs_1, _mm256_set1_epi16(0x0200u)); + // coeffs 2 3 2 3 2 3 2 3 + coeffs[1] = _mm256_shuffle_epi8(coeffs_1, _mm256_set1_epi16(0x0604u)); + // coeffs 4 5 4 5 4 5 4 5 + coeffs[2] = _mm256_shuffle_epi8(coeffs_1, _mm256_set1_epi16(0x0a08u)); + // coeffs 6 7 6 7 6 7 6 7 + coeffs[3] = _mm256_shuffle_epi8(coeffs_1, _mm256_set1_epi16(0x0e0cu)); +} + +static INLINE void prepare_coeffs(const InterpFilterParams *const filter_params, + const int subpel_q4, + __m256i *const coeffs /* [4] */) { + const int16_t *filter = av1_get_interp_filter_subpel_kernel( + filter_params, subpel_q4 & SUBPEL_MASK); + + const __m128i coeff_8 = _mm_loadu_si128((__m128i *)filter); + const __m256i coeff = _mm256_broadcastsi128_si256(coeff_8); + + // coeffs 0 1 0 1 0 1 0 1 + coeffs[0] = _mm256_shuffle_epi32(coeff, 0x00); + // coeffs 2 3 2 3 2 3 2 3 + coeffs[1] = _mm256_shuffle_epi32(coeff, 0x55); + // coeffs 4 5 4 5 4 5 4 5 + coeffs[2] = _mm256_shuffle_epi32(coeff, 0xaa); + // coeffs 6 7 6 7 6 7 6 7 + coeffs[3] = _mm256_shuffle_epi32(coeff, 0xff); +} + +static INLINE __m256i convolve_lowbd(const __m256i *const s, + const __m256i *const coeffs) { + const __m256i res_01 = _mm256_maddubs_epi16(s[0], coeffs[0]); + const __m256i res_23 = _mm256_maddubs_epi16(s[1], coeffs[1]); + const __m256i res_45 = _mm256_maddubs_epi16(s[2], coeffs[2]); + const __m256i res_67 = _mm256_maddubs_epi16(s[3], coeffs[3]); + + // order: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 + const __m256i res = _mm256_add_epi16(_mm256_add_epi16(res_01, res_45), + _mm256_add_epi16(res_23, res_67)); + + return res; +} + +static INLINE __m256i convolve(const __m256i *const s, + const __m256i *const coeffs) { + const __m256i res_0 = _mm256_madd_epi16(s[0], coeffs[0]); + const __m256i res_1 = _mm256_madd_epi16(s[1], coeffs[1]); + const __m256i res_2 = _mm256_madd_epi16(s[2], coeffs[2]); + const __m256i res_3 = _mm256_madd_epi16(s[3], coeffs[3]); + + const __m256i res = _mm256_add_epi32(_mm256_add_epi32(res_0, res_1), + _mm256_add_epi32(res_2, res_3)); + + return res; +} + +static INLINE __m256i convolve_lowbd_x(const __m256i data, + const __m256i *const coeffs, + const __m256i *const filt) { + __m256i s[4]; + + s[0] = _mm256_shuffle_epi8(data, filt[0]); + s[1] = _mm256_shuffle_epi8(data, filt[1]); + s[2] = _mm256_shuffle_epi8(data, filt[2]); + s[3] = _mm256_shuffle_epi8(data, filt[3]); + + return convolve_lowbd(s, coeffs); +} + +static INLINE void add_store_aligned_256(CONV_BUF_TYPE *const dst, + const __m256i *const res, + const int do_average) { + __m256i d; + if (do_average) { + d = _mm256_load_si256((__m256i *)dst); + d = _mm256_add_epi32(d, *res); + d = _mm256_srai_epi32(d, 1); + } else { + d = *res; + } + _mm256_store_si256((__m256i *)dst, d); +} + +static INLINE __m256i comp_avg(const __m256i *const data_ref_0, + const __m256i *const res_unsigned, + const __m256i *const wt, + const int use_jnt_comp_avg) { + __m256i res; + if (use_jnt_comp_avg) { + const __m256i data_lo = _mm256_unpacklo_epi16(*data_ref_0, *res_unsigned); + const __m256i data_hi = _mm256_unpackhi_epi16(*data_ref_0, *res_unsigned); + + const __m256i wt_res_lo = _mm256_madd_epi16(data_lo, *wt); + const __m256i wt_res_hi = _mm256_madd_epi16(data_hi, *wt); + + const __m256i res_lo = _mm256_srai_epi32(wt_res_lo, DIST_PRECISION_BITS); + const __m256i res_hi = _mm256_srai_epi32(wt_res_hi, DIST_PRECISION_BITS); + + res = _mm256_packs_epi32(res_lo, res_hi); + } else { + const __m256i wt_res = _mm256_add_epi16(*data_ref_0, *res_unsigned); + res = _mm256_srai_epi16(wt_res, 1); + } + return res; +} + +static INLINE __m256i convolve_rounding(const __m256i *const res_unsigned, + const __m256i *const offset_const, + const __m256i *const round_const, + const int round_shift) { + const __m256i res_signed = _mm256_sub_epi16(*res_unsigned, *offset_const); + const __m256i res_round = _mm256_srai_epi16( + _mm256_add_epi16(res_signed, *round_const), round_shift); + return res_round; +} + +static INLINE __m256i highbd_comp_avg(const __m256i *const data_ref_0, + const __m256i *const res_unsigned, + const __m256i *const wt0, + const __m256i *const wt1, + const int use_jnt_comp_avg) { + __m256i res; + if (use_jnt_comp_avg) { + const __m256i wt0_res = _mm256_mullo_epi32(*data_ref_0, *wt0); + const __m256i wt1_res = _mm256_mullo_epi32(*res_unsigned, *wt1); + const __m256i wt_res = _mm256_add_epi32(wt0_res, wt1_res); + res = _mm256_srai_epi32(wt_res, DIST_PRECISION_BITS); + } else { + const __m256i wt_res = _mm256_add_epi32(*data_ref_0, *res_unsigned); + res = _mm256_srai_epi32(wt_res, 1); + } + return res; +} + +static INLINE __m256i highbd_convolve_rounding( + const __m256i *const res_unsigned, const __m256i *const offset_const, + const __m256i *const round_const, const int round_shift) { + const __m256i res_signed = _mm256_sub_epi32(*res_unsigned, *offset_const); + const __m256i res_round = _mm256_srai_epi32( + _mm256_add_epi32(res_signed, *round_const), round_shift); + + return res_round; +} + +#endif // AOM_AOM_DSP_X86_CONVOLVE_AVX2_H_ |