diff options
Diffstat (limited to 'third_party/aom/av1/common/x86/reconinter_sse4.c')
| -rw-r--r-- | third_party/aom/av1/common/x86/reconinter_sse4.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/x86/reconinter_sse4.c b/third_party/aom/av1/common/x86/reconinter_sse4.c new file mode 100644 index 0000000000..eb4a4d1da3 --- /dev/null +++ b/third_party/aom/av1/common/x86/reconinter_sse4.c @@ -0,0 +1,154 @@ +/* + * 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. + */ + +#include <emmintrin.h> // SSE2 +#include <smmintrin.h> /* SSE4.1 */ + +#include "aom/aom_integer.h" +#include "aom_dsp/blend.h" +#include "av1/common/blockd.h" +#include "config/av1_rtcd.h" + +static INLINE __m128i calc_mask(const __m128i mask_base, const __m128i s0, + const __m128i s1) { + const __m128i diff = _mm_abs_epi16(_mm_sub_epi16(s0, s1)); + return _mm_abs_epi16(_mm_add_epi16(mask_base, _mm_srli_epi16(diff, 4))); + // clamp(diff, 0, 64) can be skiped for diff is always in the range ( 38, 54) +} + +void av1_build_compound_diffwtd_mask_sse4_1(uint8_t *mask, + DIFFWTD_MASK_TYPE mask_type, + const uint8_t *src0, int stride0, + const uint8_t *src1, int stride1, + int h, int w) { + const int mb = (mask_type == DIFFWTD_38_INV) ? AOM_BLEND_A64_MAX_ALPHA : 0; + const __m128i mask_base = _mm_set1_epi16(38 - mb); + int i = 0; + if (4 == w) { + do { + const __m128i s0A = _mm_cvtsi32_si128(*(int *)src0); + const __m128i s0B = _mm_cvtsi32_si128(*(int *)(src0 + stride0)); + const __m128i s0AB = _mm_unpacklo_epi32(s0A, s0B); + const __m128i s0 = _mm_cvtepu8_epi16(s0AB); + + const __m128i s1A = _mm_cvtsi32_si128(*(int *)src1); + const __m128i s1B = _mm_cvtsi32_si128(*(int *)(src1 + stride1)); + const __m128i s1AB = _mm_unpacklo_epi32(s1A, s1B); + const __m128i s1 = _mm_cvtepu8_epi16(s1AB); + + const __m128i m16 = calc_mask(mask_base, s0, s1); + const __m128i m8 = _mm_packus_epi16(m16, m16); + + *(int *)mask = _mm_cvtsi128_si32(m8); + *(int *)(mask + w) = _mm_extract_epi32(m8, 1); + src0 += (stride0 << 1); + src1 += (stride1 << 1); + mask += 8; + i += 2; + } while (i < h); + } else if (8 == w) { + do { + __m128i s0 = _mm_loadl_epi64((__m128i const *)src0); + __m128i s1 = _mm_loadl_epi64((__m128i const *)src1); + s0 = _mm_cvtepu8_epi16(s0); + s1 = _mm_cvtepu8_epi16(s1); + const __m128i m16 = calc_mask(mask_base, s0, s1); + const __m128i m8 = _mm_packus_epi16(m16, m16); + _mm_storel_epi64((__m128i *)mask, m8); + src0 += stride0; + src1 += stride1; + mask += 8; + i += 1; + } while (i < h); + } else { + const __m128i zero = _mm_setzero_si128(); + do { + int j = 0; + do { + const __m128i s0 = _mm_load_si128((__m128i const *)(src0 + j)); + const __m128i s1 = _mm_load_si128((__m128i const *)(src1 + j)); + const __m128i s0L = _mm_cvtepu8_epi16(s0); + const __m128i s1L = _mm_cvtepu8_epi16(s1); + const __m128i s0H = _mm_unpackhi_epi8(s0, zero); + const __m128i s1H = _mm_unpackhi_epi8(s1, zero); + + const __m128i m16L = calc_mask(mask_base, s0L, s1L); + const __m128i m16H = calc_mask(mask_base, s0H, s1H); + + const __m128i m8 = _mm_packus_epi16(m16L, m16H); + _mm_store_si128((__m128i *)(mask + j), m8); + j += 16; + } while (j < w); + src0 += stride0; + src1 += stride1; + mask += w; + i += 1; + } while (i < h); + } +} + +void av1_build_compound_diffwtd_mask_d16_sse4_1( + uint8_t *mask, DIFFWTD_MASK_TYPE mask_type, const CONV_BUF_TYPE *src0, + int src0_stride, const CONV_BUF_TYPE *src1, int src1_stride, int h, int w, + ConvolveParams *conv_params, int bd) { + const int which_inverse = (mask_type == DIFFWTD_38) ? 0 : 1; + const int mask_base = 38; + int round = + 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1 + (bd - 8); + const __m128i round_const = _mm_set1_epi16((1 << round) >> 1); + const __m128i mask_base_16 = _mm_set1_epi16(mask_base); + const __m128i clip_diff = _mm_set1_epi16(AOM_BLEND_A64_MAX_ALPHA); + const __m128i add_const = + _mm_set1_epi16((which_inverse ? AOM_BLEND_A64_MAX_ALPHA : 0)); + const __m128i add_sign = _mm_set1_epi16((which_inverse ? -1 : 1)); + + int i, j; + // When rounding constant is added, there is a possibility of overflow. + // However that much precision is not required. Code should very well work for + // other values of DIFF_FACTOR_LOG2 and AOM_BLEND_A64_MAX_ALPHA as well. But + // there is a possibility of corner case bugs. + assert(DIFF_FACTOR_LOG2 == 4); + assert(AOM_BLEND_A64_MAX_ALPHA == 64); + for (i = 0; i < h; ++i) { + for (j = 0; j < w; j += 8) { + const __m128i data_src0 = + _mm_loadu_si128((__m128i *)&src0[(i * src0_stride) + j]); + const __m128i data_src1 = + _mm_loadu_si128((__m128i *)&src1[(i * src1_stride) + j]); + + const __m128i diffa = _mm_subs_epu16(data_src0, data_src1); + const __m128i diffb = _mm_subs_epu16(data_src1, data_src0); + const __m128i diff = _mm_max_epu16(diffa, diffb); + const __m128i diff_round = + _mm_srli_epi16(_mm_adds_epu16(diff, round_const), round); + const __m128i diff_factor = _mm_srli_epi16(diff_round, DIFF_FACTOR_LOG2); + const __m128i diff_mask = _mm_adds_epi16(diff_factor, mask_base_16); + __m128i diff_clamp = _mm_min_epi16(diff_mask, clip_diff); + // clamp to 0 can be skipped since we are using add and saturate + // instruction + + const __m128i diff_sign = _mm_sign_epi16(diff_clamp, add_sign); + const __m128i diff_const_16 = _mm_add_epi16(diff_sign, add_const); + + // 8 bit conversion and saturation to uint8 + const __m128i res_8 = _mm_packus_epi16(diff_const_16, diff_const_16); + + // Store values into the destination buffer + __m128i *const dst = (__m128i *)&mask[i * w + j]; + + if ((w - j) > 4) { + _mm_storel_epi64(dst, res_8); + } else { // w==4 + *(int *)dst = _mm_cvtsi128_si32(res_8); + } + } + } +} |