1 /* 2 * Copyright (c) 2017 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include <smmintrin.h> // SSE4.1 12 13 #include "./vpx_dsp_rtcd.h" 14 #include "vpx_dsp/x86/highbd_inv_txfm_sse2.h" 15 #include "vpx_dsp/x86/highbd_inv_txfm_sse4.h" 16 #include "vpx_dsp/x86/inv_txfm_sse2.h" 17 #include "vpx_dsp/x86/transpose_sse2.h" 18 19 static INLINE void highbd_idct4(__m128i *const io) { 20 __m128i temp[2], step[4]; 21 22 transpose_32bit_4x4(io, io); 23 24 // stage 1 25 temp[0] = _mm_add_epi32(io[0], io[2]); // input[0] + input[2] 26 extend_64bit(temp[0], temp); 27 step[0] = multiplication_round_shift_sse4_1(temp, cospi_16_64); 28 temp[0] = _mm_sub_epi32(io[0], io[2]); // input[0] - input[2] 29 extend_64bit(temp[0], temp); 30 step[1] = multiplication_round_shift_sse4_1(temp, cospi_16_64); 31 highbd_butterfly_sse4_1(io[1], io[3], cospi_24_64, cospi_8_64, &step[2], 32 &step[3]); 33 34 // stage 2 35 io[0] = _mm_add_epi32(step[0], step[3]); // step[0] + step[3] 36 io[1] = _mm_add_epi32(step[1], step[2]); // step[1] + step[2] 37 io[2] = _mm_sub_epi32(step[1], step[2]); // step[1] - step[2] 38 io[3] = _mm_sub_epi32(step[0], step[3]); // step[0] - step[3] 39 } 40 41 void vpx_highbd_idct4x4_16_add_sse4_1(const tran_low_t *input, uint16_t *dest, 42 int stride, int bd) { 43 __m128i io[4]; 44 45 io[0] = _mm_load_si128((const __m128i *)(input + 0)); 46 io[1] = _mm_load_si128((const __m128i *)(input + 4)); 47 io[2] = _mm_load_si128((const __m128i *)(input + 8)); 48 io[3] = _mm_load_si128((const __m128i *)(input + 12)); 49 50 if (bd == 8) { 51 __m128i io_short[2]; 52 53 io_short[0] = _mm_packs_epi32(io[0], io[1]); 54 io_short[1] = _mm_packs_epi32(io[2], io[3]); 55 idct4_sse2(io_short); 56 idct4_sse2(io_short); 57 io_short[0] = _mm_add_epi16(io_short[0], _mm_set1_epi16(8)); 58 io_short[1] = _mm_add_epi16(io_short[1], _mm_set1_epi16(8)); 59 io[0] = _mm_srai_epi16(io_short[0], 4); 60 io[1] = _mm_srai_epi16(io_short[1], 4); 61 } else { 62 highbd_idct4(io); 63 highbd_idct4(io); 64 io[0] = wraplow_16bit_shift4(io[0], io[1], _mm_set1_epi32(8)); 65 io[1] = wraplow_16bit_shift4(io[2], io[3], _mm_set1_epi32(8)); 66 } 67 68 recon_and_store_4x4(io, dest, stride, bd); 69 } 70
