encodetxb_sse4.c (3045B)
1 /* 2 * Copyright (c) 2017, Alliance for Open Media. All rights reserved. 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #include <assert.h> 13 #include <emmintrin.h> // SSE2 14 #include <smmintrin.h> /* SSE4.1 */ 15 16 #include "aom/aom_integer.h" 17 #include "av1/common/av1_common_int.h" 18 #include "av1/common/txb_common.h" 19 #include "aom_dsp/x86/synonyms.h" 20 21 void av1_txb_init_levels_sse4_1(const tran_low_t *const coeff, const int width, 22 const int height, uint8_t *const levels) { 23 const int stride = height + TX_PAD_HOR; 24 const __m128i zeros = _mm_setzero_si128(); 25 26 const int32_t bottom_len = sizeof(*levels) * (TX_PAD_BOTTOM * stride); 27 uint8_t *bottom_buf = levels + stride * width; 28 uint8_t *bottom_buf_end = bottom_buf + bottom_len; 29 do { 30 _mm_storeu_si128((__m128i *)(bottom_buf), zeros); 31 bottom_buf += 16; 32 } while (bottom_buf < bottom_buf_end); 33 34 int i = 0; 35 uint8_t *ls = levels; 36 const tran_low_t *cf = coeff; 37 if (height == 4) { 38 do { 39 const __m128i coeffA = xx_loadu_128(cf); 40 const __m128i coeffB = xx_loadu_128(cf + 4); 41 const __m128i coeffAB = _mm_packs_epi32(coeffA, coeffB); 42 const __m128i absAB = _mm_abs_epi16(coeffAB); 43 const __m128i absAB8 = _mm_packs_epi16(absAB, zeros); 44 const __m128i lsAB = _mm_unpacklo_epi32(absAB8, zeros); 45 xx_storeu_128(ls, lsAB); 46 ls += (stride << 1); 47 cf += (height << 1); 48 i += 2; 49 } while (i < width); 50 } else if (height == 8) { 51 do { 52 const __m128i coeffA = xx_loadu_128(cf); 53 const __m128i coeffB = xx_loadu_128(cf + 4); 54 const __m128i coeffAB = _mm_packs_epi32(coeffA, coeffB); 55 const __m128i absAB = _mm_abs_epi16(coeffAB); 56 const __m128i absAB8 = _mm_packs_epi16(absAB, zeros); 57 xx_storeu_128(ls, absAB8); 58 ls += stride; 59 cf += height; 60 i += 1; 61 } while (i < width); 62 } else { 63 do { 64 int j = 0; 65 do { 66 const __m128i coeffA = xx_loadu_128(cf); 67 const __m128i coeffB = xx_loadu_128(cf + 4); 68 const __m128i coeffC = xx_loadu_128(cf + 8); 69 const __m128i coeffD = xx_loadu_128(cf + 12); 70 const __m128i coeffAB = _mm_packs_epi32(coeffA, coeffB); 71 const __m128i coeffCD = _mm_packs_epi32(coeffC, coeffD); 72 const __m128i absAB = _mm_abs_epi16(coeffAB); 73 const __m128i absCD = _mm_abs_epi16(coeffCD); 74 const __m128i absABCD = _mm_packs_epi16(absAB, absCD); 75 xx_storeu_128(ls + j, absABCD); 76 j += 16; 77 cf += 16; 78 } while (j < height); 79 *(int32_t *)(ls + height) = 0; 80 ls += stride; 81 i += 1; 82 } while (i < width); 83 } 84 }