70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
/*
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* Copyright (c) 2017 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <smmintrin.h> // SSE4.1
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#include "./vpx_dsp_rtcd.h"
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#include "vpx_dsp/x86/highbd_inv_txfm_sse2.h"
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#include "vpx_dsp/x86/highbd_inv_txfm_sse4.h"
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#include "vpx_dsp/x86/inv_txfm_sse2.h"
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#include "vpx_dsp/x86/transpose_sse2.h"
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static INLINE void highbd_idct4(__m128i *const io) {
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__m128i temp[2], step[4];
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transpose_32bit_4x4(io, io);
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// stage 1
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temp[0] = _mm_add_epi32(io[0], io[2]); // input[0] + input[2]
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extend_64bit(temp[0], temp);
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step[0] = multiplication_round_shift_sse4_1(temp, cospi_16_64);
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temp[0] = _mm_sub_epi32(io[0], io[2]); // input[0] - input[2]
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extend_64bit(temp[0], temp);
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step[1] = multiplication_round_shift_sse4_1(temp, cospi_16_64);
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highbd_butterfly_sse4_1(io[1], io[3], cospi_24_64, cospi_8_64, &step[2],
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&step[3]);
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// stage 2
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io[0] = _mm_add_epi32(step[0], step[3]); // step[0] + step[3]
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io[1] = _mm_add_epi32(step[1], step[2]); // step[1] + step[2]
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io[2] = _mm_sub_epi32(step[1], step[2]); // step[1] - step[2]
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io[3] = _mm_sub_epi32(step[0], step[3]); // step[0] - step[3]
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}
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void vpx_highbd_idct4x4_16_add_sse4_1(const tran_low_t *input, uint16_t *dest,
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int stride, int bd) {
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__m128i io[4];
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io[0] = _mm_load_si128((const __m128i *)(input + 0));
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io[1] = _mm_load_si128((const __m128i *)(input + 4));
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io[2] = _mm_load_si128((const __m128i *)(input + 8));
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io[3] = _mm_load_si128((const __m128i *)(input + 12));
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if (bd == 8) {
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__m128i io_short[2];
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io_short[0] = _mm_packs_epi32(io[0], io[1]);
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io_short[1] = _mm_packs_epi32(io[2], io[3]);
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idct4_sse2(io_short);
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idct4_sse2(io_short);
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io_short[0] = _mm_add_epi16(io_short[0], _mm_set1_epi16(8));
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io_short[1] = _mm_add_epi16(io_short[1], _mm_set1_epi16(8));
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io[0] = _mm_srai_epi16(io_short[0], 4);
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io[1] = _mm_srai_epi16(io_short[1], 4);
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} else {
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highbd_idct4(io);
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highbd_idct4(io);
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io[0] = wraplow_16bit_shift4(io[0], io[1], _mm_set1_epi32(8));
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io[1] = wraplow_16bit_shift4(io[2], io[3], _mm_set1_epi32(8));
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}
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recon_and_store_4x4(io, dest, stride, bd);
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}
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