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Diffstat (limited to '')
-rw-r--r-- | third_party/aom/aom_dsp/x86/convolve_sse2.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/x86/convolve_sse2.h b/third_party/aom/aom_dsp/x86/convolve_sse2.h new file mode 100644 index 0000000000..36b7d62b98 --- /dev/null +++ b/third_party/aom/aom_dsp/x86/convolve_sse2.h @@ -0,0 +1,122 @@ +/* + * 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/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_ |