ref: 8d70aef05f8601b30773412c68f0d96292ec9fe0
dir: /vpx_dsp/x86/highbd_idct4x4_add_sse4.c/
/* * Copyright (c) 2017 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include <smmintrin.h> // SSE4.1 #include "./vpx_dsp_rtcd.h" #include "vpx_dsp/x86/highbd_inv_txfm_sse2.h" #include "vpx_dsp/x86/highbd_inv_txfm_sse4.h" #include "vpx_dsp/x86/inv_txfm_sse2.h" #include "vpx_dsp/x86/transpose_sse2.h" static INLINE void highbd_idct4(__m128i *const io) { __m128i temp[2], step[4]; transpose_32bit_4x4(io, io); // stage 1 temp[0] = _mm_add_epi32(io[0], io[2]); // input[0] + input[2] extend_64bit(temp[0], temp); step[0] = multiplication_round_shift_sse4_1(temp, cospi_16_64); temp[0] = _mm_sub_epi32(io[0], io[2]); // input[0] - input[2] extend_64bit(temp[0], temp); step[1] = multiplication_round_shift_sse4_1(temp, cospi_16_64); highbd_butterfly_sse4_1(io[1], io[3], cospi_24_64, cospi_8_64, &step[2], &step[3]); // stage 2 io[0] = _mm_add_epi32(step[0], step[3]); // step[0] + step[3] io[1] = _mm_add_epi32(step[1], step[2]); // step[1] + step[2] io[2] = _mm_sub_epi32(step[1], step[2]); // step[1] - step[2] io[3] = _mm_sub_epi32(step[0], step[3]); // step[0] - step[3] } void vpx_highbd_idct4x4_16_add_sse4_1(const tran_low_t *input, uint16_t *dest, int stride, int bd) { __m128i io[4]; io[0] = _mm_load_si128((const __m128i *)(input + 0)); io[1] = _mm_load_si128((const __m128i *)(input + 4)); io[2] = _mm_load_si128((const __m128i *)(input + 8)); io[3] = _mm_load_si128((const __m128i *)(input + 12)); if (bd == 8) { __m128i io_short[2]; io_short[0] = _mm_packs_epi32(io[0], io[1]); io_short[1] = _mm_packs_epi32(io[2], io[3]); idct4_sse2(io_short); idct4_sse2(io_short); io_short[0] = _mm_add_epi16(io_short[0], _mm_set1_epi16(8)); io_short[1] = _mm_add_epi16(io_short[1], _mm_set1_epi16(8)); io[0] = _mm_srai_epi16(io_short[0], 4); io[1] = _mm_srai_epi16(io_short[1], 4); } else { highbd_idct4(io); highbd_idct4(io); io[0] = wraplow_16bit_shift4(io[0], io[1], _mm_set1_epi32(8)); io[1] = wraplow_16bit_shift4(io[2], io[3], _mm_set1_epi32(8)); } recon_and_store_4x4(io, dest, stride, bd); }