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Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/aom_dsp/x86/masked_variance_intrin_ssse3.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/x86/masked_variance_intrin_ssse3.h b/third_party/aom/aom_dsp/x86/masked_variance_intrin_ssse3.h new file mode 100644 index 0000000000..4faa098ace --- /dev/null +++ b/third_party/aom/aom_dsp/x86/masked_variance_intrin_ssse3.h @@ -0,0 +1,92 @@ +/* + * 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_MASKED_VARIANCE_INTRIN_SSSE3_H_ +#define AOM_AOM_DSP_X86_MASKED_VARIANCE_INTRIN_SSSE3_H_ + +#include <stdlib.h> +#include <string.h> +#include <tmmintrin.h> + +#include "config/aom_config.h" +#include "config/aom_dsp_rtcd.h" + +#include "aom_dsp/blend.h" + +static INLINE void comp_mask_pred_16_ssse3(const uint8_t *src0, + const uint8_t *src1, + const uint8_t *mask, uint8_t *dst) { + const __m128i alpha_max = _mm_set1_epi8(AOM_BLEND_A64_MAX_ALPHA); + const __m128i round_offset = + _mm_set1_epi16(1 << (15 - AOM_BLEND_A64_ROUND_BITS)); + + const __m128i sA0 = _mm_lddqu_si128((const __m128i *)(src0)); + const __m128i sA1 = _mm_lddqu_si128((const __m128i *)(src1)); + const __m128i aA = _mm_load_si128((const __m128i *)(mask)); + + const __m128i maA = _mm_sub_epi8(alpha_max, aA); + + const __m128i ssAL = _mm_unpacklo_epi8(sA0, sA1); + const __m128i aaAL = _mm_unpacklo_epi8(aA, maA); + const __m128i ssAH = _mm_unpackhi_epi8(sA0, sA1); + const __m128i aaAH = _mm_unpackhi_epi8(aA, maA); + + const __m128i blendAL = _mm_maddubs_epi16(ssAL, aaAL); + const __m128i blendAH = _mm_maddubs_epi16(ssAH, aaAH); + + const __m128i roundAL = _mm_mulhrs_epi16(blendAL, round_offset); + const __m128i roundAH = _mm_mulhrs_epi16(blendAH, round_offset); + _mm_store_si128((__m128i *)dst, _mm_packus_epi16(roundAL, roundAH)); +} + +static INLINE void comp_mask_pred_8_ssse3(uint8_t *comp_pred, int height, + const uint8_t *src0, int stride0, + const uint8_t *src1, int stride1, + const uint8_t *mask, + int mask_stride) { + int i = 0; + const __m128i alpha_max = _mm_set1_epi8(AOM_BLEND_A64_MAX_ALPHA); + const __m128i round_offset = + _mm_set1_epi16(1 << (15 - AOM_BLEND_A64_ROUND_BITS)); + do { + // odd line A + const __m128i sA0 = _mm_loadl_epi64((const __m128i *)(src0)); + const __m128i sA1 = _mm_loadl_epi64((const __m128i *)(src1)); + const __m128i aA = _mm_loadl_epi64((const __m128i *)(mask)); + // even line B + const __m128i sB0 = _mm_loadl_epi64((const __m128i *)(src0 + stride0)); + const __m128i sB1 = _mm_loadl_epi64((const __m128i *)(src1 + stride1)); + const __m128i a = _mm_castps_si128(_mm_loadh_pi( + _mm_castsi128_ps(aA), (const __m64 *)(mask + mask_stride))); + + const __m128i ssA = _mm_unpacklo_epi8(sA0, sA1); + const __m128i ssB = _mm_unpacklo_epi8(sB0, sB1); + + const __m128i ma = _mm_sub_epi8(alpha_max, a); + const __m128i aaA = _mm_unpacklo_epi8(a, ma); + const __m128i aaB = _mm_unpackhi_epi8(a, ma); + + const __m128i blendA = _mm_maddubs_epi16(ssA, aaA); + const __m128i blendB = _mm_maddubs_epi16(ssB, aaB); + const __m128i roundA = _mm_mulhrs_epi16(blendA, round_offset); + const __m128i roundB = _mm_mulhrs_epi16(blendB, round_offset); + const __m128i round = _mm_packus_epi16(roundA, roundB); + // comp_pred's stride == width == 8 + _mm_store_si128((__m128i *)(comp_pred), round); + comp_pred += (8 << 1); + src0 += (stride0 << 1); + src1 += (stride1 << 1); + mask += (mask_stride << 1); + i += 2; + } while (i < height); +} + +#endif // AOM_AOM_DSP_X86_MASKED_VARIANCE_INTRIN_SSSE3_H_ |