зеркало из https://github.com/mozilla/gecko-dev.git
70 строки
2.3 KiB
C
70 строки
2.3 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <emmintrin.h> // SSE2
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#include "config/aom_config.h"
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#include "config/aom_dsp_rtcd.h"
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#include "aom_dsp/aom_dsp_common.h"
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#include "aom_dsp/x86/fwd_txfm_sse2.h"
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void aom_fdct8x8_1_sse2(const int16_t *input, tran_low_t *output, int stride) {
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__m128i in0 = _mm_load_si128((const __m128i *)(input + 0 * stride));
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__m128i in1 = _mm_load_si128((const __m128i *)(input + 1 * stride));
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__m128i in2 = _mm_load_si128((const __m128i *)(input + 2 * stride));
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__m128i in3 = _mm_load_si128((const __m128i *)(input + 3 * stride));
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__m128i u0, u1, sum;
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u0 = _mm_add_epi16(in0, in1);
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u1 = _mm_add_epi16(in2, in3);
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in0 = _mm_load_si128((const __m128i *)(input + 4 * stride));
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in1 = _mm_load_si128((const __m128i *)(input + 5 * stride));
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in2 = _mm_load_si128((const __m128i *)(input + 6 * stride));
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in3 = _mm_load_si128((const __m128i *)(input + 7 * stride));
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sum = _mm_add_epi16(u0, u1);
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in0 = _mm_add_epi16(in0, in1);
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in2 = _mm_add_epi16(in2, in3);
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sum = _mm_add_epi16(sum, in0);
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u0 = _mm_setzero_si128();
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sum = _mm_add_epi16(sum, in2);
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in0 = _mm_unpacklo_epi16(u0, sum);
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in1 = _mm_unpackhi_epi16(u0, sum);
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in0 = _mm_srai_epi32(in0, 16);
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in1 = _mm_srai_epi32(in1, 16);
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sum = _mm_add_epi32(in0, in1);
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in0 = _mm_unpacklo_epi32(sum, u0);
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in1 = _mm_unpackhi_epi32(sum, u0);
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sum = _mm_add_epi32(in0, in1);
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in0 = _mm_srli_si128(sum, 8);
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in1 = _mm_add_epi32(sum, in0);
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output[0] = (tran_low_t)_mm_cvtsi128_si32(in1);
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}
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#define DCT_HIGH_BIT_DEPTH 0
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#define FDCT8x8_2D aom_fdct8x8_sse2
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#include "aom_dsp/x86/fwd_txfm_impl_sse2.h"
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#undef FDCT8x8_2D
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#undef DCT_HIGH_BIT_DEPTH
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#define DCT_HIGH_BIT_DEPTH 1
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#define FDCT8x8_2D aom_highbd_fdct8x8_sse2
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#include "aom_dsp/x86/fwd_txfm_impl_sse2.h" // NOLINT
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#undef FDCT8x8_2D
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