| /* |
| * Copyright (c) 2017, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 2 Clause License and |
| * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| * was not distributed with this source code in the LICENSE file, you can |
| * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| * Media Patent License 1.0 was not distributed with this source code in the |
| * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| */ |
| |
| #include <assert.h> |
| #include <emmintrin.h> // SSE2 |
| #include <smmintrin.h> /* SSE4.1 */ |
| |
| #include "aom/aom_integer.h" |
| #include "av1/common/av1_common_int.h" |
| #include "av1/common/txb_common.h" |
| #include "aom_dsp/x86/synonyms.h" |
| |
| void av1_txb_init_levels_sse4_1(const tran_low_t *const coeff, const int width, |
| const int height, uint8_t *const levels) { |
| const int stride = height + TX_PAD_HOR; |
| const __m128i zeros = _mm_setzero_si128(); |
| |
| const int32_t bottom_len = sizeof(*levels) * (TX_PAD_BOTTOM * stride); |
| uint8_t *bottom_buf = levels + stride * width; |
| uint8_t *bottom_buf_end = bottom_buf + bottom_len; |
| do { |
| _mm_storeu_si128((__m128i *)(bottom_buf), zeros); |
| bottom_buf += 16; |
| } while (bottom_buf < bottom_buf_end); |
| |
| int i = 0; |
| uint8_t *ls = levels; |
| const tran_low_t *cf = coeff; |
| if (height == 4) { |
| do { |
| const __m128i coeffA = xx_loadu_128(cf); |
| const __m128i coeffB = xx_loadu_128(cf + 4); |
| const __m128i coeffAB = _mm_packs_epi32(coeffA, coeffB); |
| const __m128i absAB = _mm_abs_epi16(coeffAB); |
| const __m128i absAB8 = _mm_packs_epi16(absAB, zeros); |
| const __m128i lsAB = _mm_unpacklo_epi32(absAB8, zeros); |
| xx_storeu_128(ls, lsAB); |
| ls += (stride << 1); |
| cf += (height << 1); |
| i += 2; |
| } while (i < width); |
| } else if (height == 8) { |
| do { |
| const __m128i coeffA = xx_loadu_128(cf); |
| const __m128i coeffB = xx_loadu_128(cf + 4); |
| const __m128i coeffAB = _mm_packs_epi32(coeffA, coeffB); |
| const __m128i absAB = _mm_abs_epi16(coeffAB); |
| const __m128i absAB8 = _mm_packs_epi16(absAB, zeros); |
| xx_storeu_128(ls, absAB8); |
| ls += stride; |
| cf += height; |
| i += 1; |
| } while (i < width); |
| } else { |
| do { |
| int j = 0; |
| do { |
| const __m128i coeffA = xx_loadu_128(cf); |
| const __m128i coeffB = xx_loadu_128(cf + 4); |
| const __m128i coeffC = xx_loadu_128(cf + 8); |
| const __m128i coeffD = xx_loadu_128(cf + 12); |
| const __m128i coeffAB = _mm_packs_epi32(coeffA, coeffB); |
| const __m128i coeffCD = _mm_packs_epi32(coeffC, coeffD); |
| const __m128i absAB = _mm_abs_epi16(coeffAB); |
| const __m128i absCD = _mm_abs_epi16(coeffCD); |
| const __m128i absABCD = _mm_packs_epi16(absAB, absCD); |
| xx_storeu_128(ls + j, absABCD); |
| j += 16; |
| cf += 16; |
| } while (j < height); |
| *(int32_t *)(ls + height) = 0; |
| ls += stride; |
| i += 1; |
| } while (i < width); |
| } |
| } |