diff options
Diffstat (limited to 'third_party/aom/aom_dsp/x86/sum_squares_sse2.c')
-rw-r--r-- | third_party/aom/aom_dsp/x86/sum_squares_sse2.c | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/third_party/aom/aom_dsp/x86/sum_squares_sse2.c b/third_party/aom/aom_dsp/x86/sum_squares_sse2.c deleted file mode 100644 index 22d7739ec..000000000 --- a/third_party/aom/aom_dsp/x86/sum_squares_sse2.c +++ /dev/null @@ -1,203 +0,0 @@ -/* - * Copyright (c) 2016, 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> -#include <stdio.h> - -#include "aom_dsp/x86/synonyms.h" -#include "aom_dsp/x86/sum_squares_sse2.h" -#include "config/aom_dsp_rtcd.h" - -static INLINE __m128i xx_loadh_64(__m128i a, const void *b) { - const __m128d ad = _mm_castsi128_pd(a); - return _mm_castpd_si128(_mm_loadh_pd(ad, (double *)b)); -} - -static INLINE uint64_t xx_cvtsi128_si64(__m128i a) { -#if ARCH_X86_64 - return (uint64_t)_mm_cvtsi128_si64(a); -#else - { - uint64_t tmp; - _mm_storel_epi64((__m128i *)&tmp, a); - return tmp; - } -#endif -} - -static INLINE __m128i sum_squares_i16_4x4_sse2(const int16_t *src, int stride) { - const __m128i v_val_0_w = xx_loadl_64(src + 0 * stride); - const __m128i v_val_2_w = xx_loadl_64(src + 2 * stride); - const __m128i v_val_01_w = xx_loadh_64(v_val_0_w, src + 1 * stride); - const __m128i v_val_23_w = xx_loadh_64(v_val_2_w, src + 3 * stride); - const __m128i v_sq_01_d = _mm_madd_epi16(v_val_01_w, v_val_01_w); - const __m128i v_sq_23_d = _mm_madd_epi16(v_val_23_w, v_val_23_w); - - return _mm_add_epi32(v_sq_01_d, v_sq_23_d); -} - -uint64_t aom_sum_squares_2d_i16_4x4_sse2(const int16_t *src, int stride) { - const __m128i v_sum_0123_d = sum_squares_i16_4x4_sse2(src, stride); - __m128i v_sum_d = - _mm_add_epi32(v_sum_0123_d, _mm_srli_epi64(v_sum_0123_d, 32)); - v_sum_d = _mm_add_epi32(v_sum_d, _mm_srli_si128(v_sum_d, 8)); - return (uint64_t)_mm_cvtsi128_si32(v_sum_d); -} - -uint64_t aom_sum_squares_2d_i16_4xn_sse2(const int16_t *src, int stride, - int height) { - int r = 0; - __m128i v_acc_q = _mm_setzero_si128(); - do { - const __m128i v_acc_d = sum_squares_i16_4x4_sse2(src, stride); - v_acc_q = _mm_add_epi32(v_acc_q, v_acc_d); - src += stride << 2; - r += 4; - } while (r < height); - const __m128i v_zext_mask_q = xx_set1_64_from_32i(0xffffffff); - __m128i v_acc_64 = _mm_add_epi64(_mm_srli_epi64(v_acc_q, 32), - _mm_and_si128(v_acc_q, v_zext_mask_q)); - v_acc_64 = _mm_add_epi64(v_acc_64, _mm_srli_si128(v_acc_64, 8)); - return xx_cvtsi128_si64(v_acc_64); -} - -#ifdef __GNUC__ -// This prevents GCC/Clang from inlining this function into -// aom_sum_squares_2d_i16_sse2, which in turn saves some stack -// maintenance instructions in the common case of 4x4. -__attribute__((noinline)) -#endif -uint64_t -aom_sum_squares_2d_i16_nxn_sse2(const int16_t *src, int stride, int width, - int height) { - int r = 0; - - const __m128i v_zext_mask_q = xx_set1_64_from_32i(0xffffffff); - __m128i v_acc_q = _mm_setzero_si128(); - - do { - __m128i v_acc_d = _mm_setzero_si128(); - int c = 0; - do { - const int16_t *b = src + c; - - const __m128i v_val_0_w = xx_load_128(b + 0 * stride); - const __m128i v_val_1_w = xx_load_128(b + 1 * stride); - const __m128i v_val_2_w = xx_load_128(b + 2 * stride); - const __m128i v_val_3_w = xx_load_128(b + 3 * stride); - - const __m128i v_sq_0_d = _mm_madd_epi16(v_val_0_w, v_val_0_w); - const __m128i v_sq_1_d = _mm_madd_epi16(v_val_1_w, v_val_1_w); - const __m128i v_sq_2_d = _mm_madd_epi16(v_val_2_w, v_val_2_w); - const __m128i v_sq_3_d = _mm_madd_epi16(v_val_3_w, v_val_3_w); - - const __m128i v_sum_01_d = _mm_add_epi32(v_sq_0_d, v_sq_1_d); - const __m128i v_sum_23_d = _mm_add_epi32(v_sq_2_d, v_sq_3_d); - - const __m128i v_sum_0123_d = _mm_add_epi32(v_sum_01_d, v_sum_23_d); - - v_acc_d = _mm_add_epi32(v_acc_d, v_sum_0123_d); - c += 8; - } while (c < width); - - v_acc_q = _mm_add_epi64(v_acc_q, _mm_and_si128(v_acc_d, v_zext_mask_q)); - v_acc_q = _mm_add_epi64(v_acc_q, _mm_srli_epi64(v_acc_d, 32)); - - src += 4 * stride; - r += 4; - } while (r < height); - - v_acc_q = _mm_add_epi64(v_acc_q, _mm_srli_si128(v_acc_q, 8)); - return xx_cvtsi128_si64(v_acc_q); -} - -uint64_t aom_sum_squares_2d_i16_sse2(const int16_t *src, int stride, int width, - int height) { - // 4 elements per row only requires half an XMM register, so this - // must be a special case, but also note that over 75% of all calls - // are with size == 4, so it is also the common case. - if (LIKELY(width == 4 && height == 4)) { - return aom_sum_squares_2d_i16_4x4_sse2(src, stride); - } else if (LIKELY(width == 4 && (height & 3) == 0)) { - return aom_sum_squares_2d_i16_4xn_sse2(src, stride, height); - } else if (LIKELY((width & 7) == 0 && (height & 3) == 0)) { - // Generic case - return aom_sum_squares_2d_i16_nxn_sse2(src, stride, width, height); - } else { - return aom_sum_squares_2d_i16_c(src, stride, width, height); - } -} - -////////////////////////////////////////////////////////////////////////////// -// 1D version -////////////////////////////////////////////////////////////////////////////// - -static uint64_t aom_sum_squares_i16_64n_sse2(const int16_t *src, uint32_t n) { - const __m128i v_zext_mask_q = xx_set1_64_from_32i(0xffffffff); - __m128i v_acc0_q = _mm_setzero_si128(); - __m128i v_acc1_q = _mm_setzero_si128(); - - const int16_t *const end = src + n; - - assert(n % 64 == 0); - - while (src < end) { - const __m128i v_val_0_w = xx_load_128(src); - const __m128i v_val_1_w = xx_load_128(src + 8); - const __m128i v_val_2_w = xx_load_128(src + 16); - const __m128i v_val_3_w = xx_load_128(src + 24); - const __m128i v_val_4_w = xx_load_128(src + 32); - const __m128i v_val_5_w = xx_load_128(src + 40); - const __m128i v_val_6_w = xx_load_128(src + 48); - const __m128i v_val_7_w = xx_load_128(src + 56); - - const __m128i v_sq_0_d = _mm_madd_epi16(v_val_0_w, v_val_0_w); - const __m128i v_sq_1_d = _mm_madd_epi16(v_val_1_w, v_val_1_w); - const __m128i v_sq_2_d = _mm_madd_epi16(v_val_2_w, v_val_2_w); - const __m128i v_sq_3_d = _mm_madd_epi16(v_val_3_w, v_val_3_w); - const __m128i v_sq_4_d = _mm_madd_epi16(v_val_4_w, v_val_4_w); - const __m128i v_sq_5_d = _mm_madd_epi16(v_val_5_w, v_val_5_w); - const __m128i v_sq_6_d = _mm_madd_epi16(v_val_6_w, v_val_6_w); - const __m128i v_sq_7_d = _mm_madd_epi16(v_val_7_w, v_val_7_w); - - const __m128i v_sum_01_d = _mm_add_epi32(v_sq_0_d, v_sq_1_d); - const __m128i v_sum_23_d = _mm_add_epi32(v_sq_2_d, v_sq_3_d); - const __m128i v_sum_45_d = _mm_add_epi32(v_sq_4_d, v_sq_5_d); - const __m128i v_sum_67_d = _mm_add_epi32(v_sq_6_d, v_sq_7_d); - - const __m128i v_sum_0123_d = _mm_add_epi32(v_sum_01_d, v_sum_23_d); - const __m128i v_sum_4567_d = _mm_add_epi32(v_sum_45_d, v_sum_67_d); - - const __m128i v_sum_d = _mm_add_epi32(v_sum_0123_d, v_sum_4567_d); - - v_acc0_q = _mm_add_epi64(v_acc0_q, _mm_and_si128(v_sum_d, v_zext_mask_q)); - v_acc1_q = _mm_add_epi64(v_acc1_q, _mm_srli_epi64(v_sum_d, 32)); - - src += 64; - } - - v_acc0_q = _mm_add_epi64(v_acc0_q, v_acc1_q); - v_acc0_q = _mm_add_epi64(v_acc0_q, _mm_srli_si128(v_acc0_q, 8)); - return xx_cvtsi128_si64(v_acc0_q); -} - -uint64_t aom_sum_squares_i16_sse2(const int16_t *src, uint32_t n) { - if (n % 64 == 0) { - return aom_sum_squares_i16_64n_sse2(src, n); - } else if (n > 64) { - int k = n & ~(64 - 1); - return aom_sum_squares_i16_64n_sse2(src, k) + - aom_sum_squares_i16_c(src + k, n - k); - } else { - return aom_sum_squares_i16_c(src, n); - } -} |