| /* |
| * Copyright (c) 2019, 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 <emmintrin.h> |
| |
| #include "config/aom_dsp_rtcd.h" |
| |
| static inline void sse_sum_wd4_sse2(const int16_t *data, int stride, int bh, |
| int *x_sum, int64_t *x2_sum) { |
| const int16_t *data_tmp = data; |
| __m128i temp_buffer1, temp_buffer2; |
| __m128i load_pixels_low, load_pixels_hi, sum_buffer, sse_buffer; |
| __m128i one = _mm_set1_epi16(1); |
| __m128i regx_sum = _mm_setzero_si128(); |
| __m128i regx2_sum = regx_sum; |
| |
| for (int j = 0; j < (bh >> 1); ++j) { |
| // Load 2 rows (8 pixels) at a time. |
| load_pixels_low = _mm_loadl_epi64((__m128i const *)(data_tmp)); |
| load_pixels_hi = _mm_loadl_epi64((__m128i const *)(data_tmp + stride)); |
| load_pixels_low = _mm_unpacklo_epi64(load_pixels_low, load_pixels_hi); |
| sum_buffer = _mm_madd_epi16(load_pixels_low, one); |
| sse_buffer = _mm_madd_epi16(load_pixels_low, load_pixels_low); |
| regx_sum = _mm_add_epi32(sum_buffer, regx_sum); |
| regx2_sum = _mm_add_epi32(sse_buffer, regx2_sum); |
| data_tmp += 2 * stride; |
| } |
| |
| regx_sum = _mm_add_epi32(regx_sum, _mm_srli_si128(regx_sum, 8)); |
| regx_sum = _mm_add_epi32(regx_sum, _mm_srli_si128(regx_sum, 4)); |
| *x_sum = _mm_cvtsi128_si32(regx_sum); |
| temp_buffer1 = _mm_unpacklo_epi32(regx2_sum, _mm_setzero_si128()); |
| temp_buffer2 = _mm_unpackhi_epi32(regx2_sum, _mm_setzero_si128()); |
| regx2_sum = _mm_add_epi64(temp_buffer1, temp_buffer2); |
| regx2_sum = _mm_add_epi64(regx2_sum, _mm_srli_si128(regx2_sum, 8)); |
| #if AOM_ARCH_X86_64 |
| *x2_sum += _mm_cvtsi128_si64(regx2_sum); |
| #else |
| { |
| int64_t tmp; |
| _mm_storel_epi64((__m128i *)&tmp, regx2_sum); |
| *x2_sum += tmp; |
| } |
| #endif |
| } |
| |
| static inline void sse_sum_wd8_sse2(const int16_t *data, int stride, int bh, |
| int *x_sum, int64_t *x2_sum, |
| int loop_cycles) { |
| const int16_t *data_tmp; |
| __m128i temp_buffer1, temp_buffer2; |
| __m128i one = _mm_set1_epi16(1); |
| __m128i regx_sum = _mm_setzero_si128(); |
| __m128i regx2_sum = regx_sum; |
| __m128i load_pixels, sum_buffer, sse_buffer; |
| |
| for (int i = 0; i < loop_cycles; ++i) { |
| data_tmp = data + (8 * i); |
| for (int j = 0; j < bh; ++j) { |
| // Load 1 row (8-pixels) at a time. |
| load_pixels = _mm_loadu_si128((__m128i const *)(data_tmp)); |
| sum_buffer = _mm_madd_epi16(load_pixels, one); |
| sse_buffer = _mm_madd_epi16(load_pixels, load_pixels); |
| regx_sum = _mm_add_epi32(sum_buffer, regx_sum); |
| regx2_sum = _mm_add_epi32(sse_buffer, regx2_sum); |
| data_tmp += stride; |
| } |
| } |
| |
| regx_sum = _mm_add_epi32(regx_sum, _mm_srli_si128(regx_sum, 8)); |
| regx_sum = _mm_add_epi32(regx_sum, _mm_srli_si128(regx_sum, 4)); |
| *x_sum += _mm_cvtsi128_si32(regx_sum); |
| temp_buffer1 = _mm_unpacklo_epi32(regx2_sum, _mm_setzero_si128()); |
| temp_buffer2 = _mm_unpackhi_epi32(regx2_sum, _mm_setzero_si128()); |
| regx2_sum = _mm_add_epi64(temp_buffer1, temp_buffer2); |
| regx2_sum = _mm_add_epi64(regx2_sum, _mm_srli_si128(regx2_sum, 8)); |
| #if AOM_ARCH_X86_64 |
| *x2_sum += _mm_cvtsi128_si64(regx2_sum); |
| #else |
| { |
| int64_t tmp; |
| _mm_storel_epi64((__m128i *)&tmp, regx2_sum); |
| *x2_sum += tmp; |
| } |
| #endif |
| } |
| |
| // This functions adds SSE2 Support for the functions 'get_blk_sse_sum_c' |
| void aom_get_blk_sse_sum_sse2(const int16_t *data, int stride, int bw, int bh, |
| int *x_sum, int64_t *x2_sum) { |
| *x_sum = 0; |
| *x2_sum = 0; |
| |
| if ((bh & 3) == 0) { |
| switch (bw) { |
| case 4: sse_sum_wd4_sse2(data, stride, bh, x_sum, x2_sum); break; |
| case 8: |
| case 16: |
| sse_sum_wd8_sse2(data, stride, bh, x_sum, x2_sum, bw >> 3); |
| break; |
| // For widths 32 and 64, the registers may overflow. So compute |
| // partial widths at a time. |
| case 32: |
| if (bh <= 32) { |
| sse_sum_wd8_sse2(data, stride, bh, x_sum, x2_sum, bw >> 3); |
| break; |
| } else { |
| sse_sum_wd8_sse2(data, stride, 32, x_sum, x2_sum, bw >> 3); |
| sse_sum_wd8_sse2(data + 32 * stride, stride, 32, x_sum, x2_sum, |
| bw >> 3); |
| break; |
| } |
| |
| case 64: |
| if (bh <= 16) { |
| sse_sum_wd8_sse2(data, stride, bh, x_sum, x2_sum, bw >> 3); |
| break; |
| } else { |
| for (int i = 0; i < bh; i += 16) |
| sse_sum_wd8_sse2(data + i * stride, stride, 16, x_sum, x2_sum, |
| bw >> 3); |
| break; |
| } |
| |
| default: aom_get_blk_sse_sum_c(data, stride, bw, bh, x_sum, x2_sum); |
| } |
| } else { |
| aom_get_blk_sse_sum_c(data, stride, bw, bh, x_sum, x2_sum); |
| } |
| } |