139 lines
5.0 KiB
C
139 lines
5.0 KiB
C
/*
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* Copyright (c) 2019, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <emmintrin.h>
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#include "config/aom_dsp_rtcd.h"
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static INLINE void sse_sum_wd4_sse2(const int16_t *data, int stride, int bh,
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int *x_sum, int64_t *x2_sum) {
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const int16_t *data_tmp = data;
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__m128i temp_buffer1, temp_buffer2;
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__m128i load_pixels_low, load_pixels_hi, sum_buffer, sse_buffer;
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__m128i one = _mm_set1_epi16(1);
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__m128i regx_sum = _mm_setzero_si128();
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__m128i regx2_sum = regx_sum;
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for (int j = 0; j < (bh >> 1); ++j) {
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// Load 2 rows (8 pixels) at a time.
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load_pixels_low = _mm_loadl_epi64((__m128i const *)(data_tmp));
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load_pixels_hi = _mm_loadl_epi64((__m128i const *)(data_tmp + stride));
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load_pixels_low = _mm_unpacklo_epi64(load_pixels_low, load_pixels_hi);
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sum_buffer = _mm_madd_epi16(load_pixels_low, one);
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sse_buffer = _mm_madd_epi16(load_pixels_low, load_pixels_low);
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regx_sum = _mm_add_epi32(sum_buffer, regx_sum);
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regx2_sum = _mm_add_epi32(sse_buffer, regx2_sum);
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data_tmp += 2 * stride;
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}
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regx_sum = _mm_add_epi32(regx_sum, _mm_srli_si128(regx_sum, 8));
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regx_sum = _mm_add_epi32(regx_sum, _mm_srli_si128(regx_sum, 4));
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*x_sum = _mm_cvtsi128_si32(regx_sum);
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temp_buffer1 = _mm_unpacklo_epi32(regx2_sum, _mm_setzero_si128());
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temp_buffer2 = _mm_unpackhi_epi32(regx2_sum, _mm_setzero_si128());
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regx2_sum = _mm_add_epi64(temp_buffer1, temp_buffer2);
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regx2_sum = _mm_add_epi64(regx2_sum, _mm_srli_si128(regx2_sum, 8));
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#if ARCH_X86_64
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*x2_sum += _mm_cvtsi128_si64(regx2_sum);
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#else
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{
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int64_t tmp;
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_mm_storel_epi64((__m128i *)&tmp, regx2_sum);
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*x2_sum += tmp;
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}
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#endif
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}
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static INLINE void sse_sum_wd8_sse2(const int16_t *data, int stride, int bh,
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int *x_sum, int64_t *x2_sum,
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int loop_cycles) {
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const int16_t *data_tmp;
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__m128i temp_buffer1, temp_buffer2;
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__m128i one = _mm_set1_epi16(1);
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__m128i regx_sum = _mm_setzero_si128();
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__m128i regx2_sum = regx_sum;
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__m128i load_pixels, sum_buffer, sse_buffer;
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for (int i = 0; i < loop_cycles; ++i) {
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data_tmp = data + (8 * i);
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for (int j = 0; j < bh; ++j) {
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// Load 1 row (8-pixels) at a time.
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load_pixels = _mm_loadu_si128((__m128i const *)(data_tmp));
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sum_buffer = _mm_madd_epi16(load_pixels, one);
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sse_buffer = _mm_madd_epi16(load_pixels, load_pixels);
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regx_sum = _mm_add_epi32(sum_buffer, regx_sum);
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regx2_sum = _mm_add_epi32(sse_buffer, regx2_sum);
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data_tmp += stride;
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}
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}
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regx_sum = _mm_add_epi32(regx_sum, _mm_srli_si128(regx_sum, 8));
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regx_sum = _mm_add_epi32(regx_sum, _mm_srli_si128(regx_sum, 4));
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*x_sum += _mm_cvtsi128_si32(regx_sum);
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temp_buffer1 = _mm_unpacklo_epi32(regx2_sum, _mm_setzero_si128());
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temp_buffer2 = _mm_unpackhi_epi32(regx2_sum, _mm_setzero_si128());
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regx2_sum = _mm_add_epi64(temp_buffer1, temp_buffer2);
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regx2_sum = _mm_add_epi64(regx2_sum, _mm_srli_si128(regx2_sum, 8));
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#if ARCH_X86_64
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*x2_sum += _mm_cvtsi128_si64(regx2_sum);
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#else
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{
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int64_t tmp;
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_mm_storel_epi64((__m128i *)&tmp, regx2_sum);
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*x2_sum += tmp;
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}
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#endif
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}
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// This functions adds SSE2 Support for the functions 'get_blk_sse_sum_c'
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void aom_get_blk_sse_sum_sse2(const int16_t *data, int stride, int bw, int bh,
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int *x_sum, int64_t *x2_sum) {
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*x_sum = 0;
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*x2_sum = 0;
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if ((bh & 3) == 0) {
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switch (bw) {
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case 4: sse_sum_wd4_sse2(data, stride, bh, x_sum, x2_sum); break;
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case 8:
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case 16:
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sse_sum_wd8_sse2(data, stride, bh, x_sum, x2_sum, bw >> 3);
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break;
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// For widths 32 and 64, the registers may overflow. So compute
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// partial widths at a time.
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case 32:
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if (bh <= 32) {
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sse_sum_wd8_sse2(data, stride, bh, x_sum, x2_sum, bw >> 3);
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break;
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} else {
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sse_sum_wd8_sse2(data, stride, 32, x_sum, x2_sum, bw >> 3);
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sse_sum_wd8_sse2(data + 32 * stride, stride, 32, x_sum, x2_sum,
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bw >> 3);
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break;
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}
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case 64:
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if (bh <= 16) {
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sse_sum_wd8_sse2(data, stride, bh, x_sum, x2_sum, bw >> 3);
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break;
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} else {
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for (int i = 0; i < bh; i += 16)
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sse_sum_wd8_sse2(data + i * stride, stride, 16, x_sum, x2_sum,
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bw >> 3);
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break;
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}
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default: aom_get_blk_sse_sum_c(data, stride, bw, bh, x_sum, x2_sum);
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}
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} else {
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aom_get_blk_sse_sum_c(data, stride, bw, bh, x_sum, x2_sum);
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}
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}
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