| /* |
| * 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_SSE2_H_ |
| #define AOM_AOM_DSP_X86_CONVOLVE_SSE2_H_ |
| |
| #include "config/av1_rtcd.h" |
| #include "config/aom_scale_rtcd.h" |
| |
| // Note: |
| // This header file should be put below any x86 intrinsics head file |
| static INLINE void prepare_coeffs(const InterpFilterParams *const filter_params, |
| const int subpel_q4, |
| __m128i *const coeffs /* [4] */) { |
| const int16_t *filter = av1_get_interp_filter_subpel_kernel( |
| filter_params, subpel_q4 & SUBPEL_MASK); |
| const __m128i coeff = _mm_loadu_si128((__m128i *)filter); |
| |
| // coeffs 0 1 0 1 0 1 0 1 |
| coeffs[0] = _mm_shuffle_epi32(coeff, 0x00); |
| // coeffs 2 3 2 3 2 3 2 3 |
| coeffs[1] = _mm_shuffle_epi32(coeff, 0x55); |
| // coeffs 4 5 4 5 4 5 4 5 |
| coeffs[2] = _mm_shuffle_epi32(coeff, 0xaa); |
| // coeffs 6 7 6 7 6 7 6 7 |
| coeffs[3] = _mm_shuffle_epi32(coeff, 0xff); |
| } |
| |
| static INLINE __m128i convolve(const __m128i *const s, |
| const __m128i *const coeffs) { |
| const __m128i res_0 = _mm_madd_epi16(s[0], coeffs[0]); |
| const __m128i res_1 = _mm_madd_epi16(s[1], coeffs[1]); |
| const __m128i res_2 = _mm_madd_epi16(s[2], coeffs[2]); |
| const __m128i res_3 = _mm_madd_epi16(s[3], coeffs[3]); |
| |
| const __m128i res = |
| _mm_add_epi32(_mm_add_epi32(res_0, res_1), _mm_add_epi32(res_2, res_3)); |
| |
| return res; |
| } |
| |
| static INLINE __m128i convolve_lo_x(const __m128i *const s, |
| const __m128i *const coeffs) { |
| __m128i ss[4]; |
| ss[0] = _mm_unpacklo_epi8(s[0], _mm_setzero_si128()); |
| ss[1] = _mm_unpacklo_epi8(s[1], _mm_setzero_si128()); |
| ss[2] = _mm_unpacklo_epi8(s[2], _mm_setzero_si128()); |
| ss[3] = _mm_unpacklo_epi8(s[3], _mm_setzero_si128()); |
| return convolve(ss, coeffs); |
| } |
| |
| static INLINE __m128i convolve_lo_y(const __m128i *const s, |
| const __m128i *const coeffs) { |
| __m128i ss[4]; |
| ss[0] = _mm_unpacklo_epi8(s[0], _mm_setzero_si128()); |
| ss[1] = _mm_unpacklo_epi8(s[2], _mm_setzero_si128()); |
| ss[2] = _mm_unpacklo_epi8(s[4], _mm_setzero_si128()); |
| ss[3] = _mm_unpacklo_epi8(s[6], _mm_setzero_si128()); |
| return convolve(ss, coeffs); |
| } |
| |
| static INLINE __m128i convolve_hi_y(const __m128i *const s, |
| const __m128i *const coeffs) { |
| __m128i ss[4]; |
| ss[0] = _mm_unpackhi_epi8(s[0], _mm_setzero_si128()); |
| ss[1] = _mm_unpackhi_epi8(s[2], _mm_setzero_si128()); |
| ss[2] = _mm_unpackhi_epi8(s[4], _mm_setzero_si128()); |
| ss[3] = _mm_unpackhi_epi8(s[6], _mm_setzero_si128()); |
| return convolve(ss, coeffs); |
| } |
| |
| static INLINE __m128i comp_avg(const __m128i *const data_ref_0, |
| const __m128i *const res_unsigned, |
| const __m128i *const wt, |
| const int use_dist_wtd_avg) { |
| __m128i res; |
| if (use_dist_wtd_avg) { |
| const __m128i data_lo = _mm_unpacklo_epi16(*data_ref_0, *res_unsigned); |
| const __m128i data_hi = _mm_unpackhi_epi16(*data_ref_0, *res_unsigned); |
| |
| const __m128i wt_res_lo = _mm_madd_epi16(data_lo, *wt); |
| const __m128i wt_res_hi = _mm_madd_epi16(data_hi, *wt); |
| |
| const __m128i res_lo = _mm_srai_epi32(wt_res_lo, DIST_PRECISION_BITS); |
| const __m128i res_hi = _mm_srai_epi32(wt_res_hi, DIST_PRECISION_BITS); |
| |
| res = _mm_packs_epi32(res_lo, res_hi); |
| } else { |
| const __m128i wt_res = _mm_add_epi16(*data_ref_0, *res_unsigned); |
| res = _mm_srai_epi16(wt_res, 1); |
| } |
| return res; |
| } |
| |
| static INLINE __m128i convolve_rounding(const __m128i *const res_unsigned, |
| const __m128i *const offset_const, |
| const __m128i *const round_const, |
| const int round_shift) { |
| const __m128i res_signed = _mm_sub_epi16(*res_unsigned, *offset_const); |
| const __m128i res_round = |
| _mm_srai_epi16(_mm_add_epi16(res_signed, *round_const), round_shift); |
| return res_round; |
| } |
| |
| static INLINE __m128i highbd_convolve_rounding_sse2( |
| const __m128i *const res_unsigned, const __m128i *const offset_const, |
| const __m128i *const round_const, const int round_shift) { |
| const __m128i res_signed = _mm_sub_epi32(*res_unsigned, *offset_const); |
| const __m128i res_round = |
| _mm_srai_epi32(_mm_add_epi32(res_signed, *round_const), round_shift); |
| |
| return res_round; |
| } |
| |
| #endif // AOM_AOM_DSP_X86_CONVOLVE_SSE2_H_ |