11b362b15af34006e6a11974088a46d42b903418eJohann/* 21b362b15af34006e6a11974088a46d42b903418eJohann * Copyright (c) 2012 The WebM project authors. All Rights Reserved. 31b362b15af34006e6a11974088a46d42b903418eJohann * 41b362b15af34006e6a11974088a46d42b903418eJohann * Use of this source code is governed by a BSD-style license 51b362b15af34006e6a11974088a46d42b903418eJohann * that can be found in the LICENSE file in the root of the source 61b362b15af34006e6a11974088a46d42b903418eJohann * tree. An additional intellectual property rights grant can be found 71b362b15af34006e6a11974088a46d42b903418eJohann * in the file PATENTS. All contributing project authors may 81b362b15af34006e6a11974088a46d42b903418eJohann * be found in the AUTHORS file in the root of the source tree. 91b362b15af34006e6a11974088a46d42b903418eJohann */ 101b362b15af34006e6a11974088a46d42b903418eJohann 111b362b15af34006e6a11974088a46d42b903418eJohann#include "vp8/encoder/denoising.h" 121b362b15af34006e6a11974088a46d42b903418eJohann#include "vp8/common/reconinter.h" 131b362b15af34006e6a11974088a46d42b903418eJohann#include "vpx/vpx_integer.h" 141b362b15af34006e6a11974088a46d42b903418eJohann#include "vpx_mem/vpx_mem.h" 15ba164dffc5a6795bce97fae02b51ccf3330e15e4hkuang#include "vp8_rtcd.h" 161b362b15af34006e6a11974088a46d42b903418eJohann 171b362b15af34006e6a11974088a46d42b903418eJohann#include <emmintrin.h> 18ba164dffc5a6795bce97fae02b51ccf3330e15e4hkuang#include "vpx_ports/emmintrin_compat.h" 191b362b15af34006e6a11974088a46d42b903418eJohann 201b362b15af34006e6a11974088a46d42b903418eJohannunion sum_union { 211b362b15af34006e6a11974088a46d42b903418eJohann __m128i v; 221b362b15af34006e6a11974088a46d42b903418eJohann signed char e[16]; 231b362b15af34006e6a11974088a46d42b903418eJohann}; 241b362b15af34006e6a11974088a46d42b903418eJohann 251b362b15af34006e6a11974088a46d42b903418eJohannint vp8_denoiser_filter_sse2(YV12_BUFFER_CONFIG *mc_running_avg, 261b362b15af34006e6a11974088a46d42b903418eJohann YV12_BUFFER_CONFIG *running_avg, 271b362b15af34006e6a11974088a46d42b903418eJohann MACROBLOCK *signal, unsigned int motion_magnitude, 281b362b15af34006e6a11974088a46d42b903418eJohann int y_offset, int uv_offset) 291b362b15af34006e6a11974088a46d42b903418eJohann{ 301b362b15af34006e6a11974088a46d42b903418eJohann unsigned char *sig = signal->thismb; 311b362b15af34006e6a11974088a46d42b903418eJohann int sig_stride = 16; 321b362b15af34006e6a11974088a46d42b903418eJohann unsigned char *mc_running_avg_y = mc_running_avg->y_buffer + y_offset; 331b362b15af34006e6a11974088a46d42b903418eJohann int mc_avg_y_stride = mc_running_avg->y_stride; 341b362b15af34006e6a11974088a46d42b903418eJohann unsigned char *running_avg_y = running_avg->y_buffer + y_offset; 351b362b15af34006e6a11974088a46d42b903418eJohann int avg_y_stride = running_avg->y_stride; 361b362b15af34006e6a11974088a46d42b903418eJohann int r; 371b362b15af34006e6a11974088a46d42b903418eJohann __m128i acc_diff = _mm_setzero_si128(); 381b362b15af34006e6a11974088a46d42b903418eJohann const __m128i k_0 = _mm_setzero_si128(); 391b362b15af34006e6a11974088a46d42b903418eJohann const __m128i k_4 = _mm_set1_epi8(4); 401b362b15af34006e6a11974088a46d42b903418eJohann const __m128i k_8 = _mm_set1_epi8(8); 411b362b15af34006e6a11974088a46d42b903418eJohann const __m128i k_16 = _mm_set1_epi8(16); 421b362b15af34006e6a11974088a46d42b903418eJohann /* Modify each level's adjustment according to motion_magnitude. */ 431b362b15af34006e6a11974088a46d42b903418eJohann const __m128i l3 = _mm_set1_epi8( 441b362b15af34006e6a11974088a46d42b903418eJohann (motion_magnitude <= MOTION_MAGNITUDE_THRESHOLD) ? 7 : 6); 451b362b15af34006e6a11974088a46d42b903418eJohann /* Difference between level 3 and level 2 is 2. */ 461b362b15af34006e6a11974088a46d42b903418eJohann const __m128i l32 = _mm_set1_epi8(2); 471b362b15af34006e6a11974088a46d42b903418eJohann /* Difference between level 2 and level 1 is 1. */ 481b362b15af34006e6a11974088a46d42b903418eJohann const __m128i l21 = _mm_set1_epi8(1); 491b362b15af34006e6a11974088a46d42b903418eJohann 501b362b15af34006e6a11974088a46d42b903418eJohann for (r = 0; r < 16; ++r) 511b362b15af34006e6a11974088a46d42b903418eJohann { 521b362b15af34006e6a11974088a46d42b903418eJohann /* Calculate differences */ 531b362b15af34006e6a11974088a46d42b903418eJohann const __m128i v_sig = _mm_loadu_si128((__m128i *)(&sig[0])); 541b362b15af34006e6a11974088a46d42b903418eJohann const __m128i v_mc_running_avg_y = _mm_loadu_si128( 551b362b15af34006e6a11974088a46d42b903418eJohann (__m128i *)(&mc_running_avg_y[0])); 561b362b15af34006e6a11974088a46d42b903418eJohann __m128i v_running_avg_y; 571b362b15af34006e6a11974088a46d42b903418eJohann const __m128i pdiff = _mm_subs_epu8(v_mc_running_avg_y, v_sig); 581b362b15af34006e6a11974088a46d42b903418eJohann const __m128i ndiff = _mm_subs_epu8(v_sig, v_mc_running_avg_y); 591b362b15af34006e6a11974088a46d42b903418eJohann /* Obtain the sign. FF if diff is negative. */ 601b362b15af34006e6a11974088a46d42b903418eJohann const __m128i diff_sign = _mm_cmpeq_epi8(pdiff, k_0); 611b362b15af34006e6a11974088a46d42b903418eJohann /* Clamp absolute difference to 16 to be used to get mask. Doing this 621b362b15af34006e6a11974088a46d42b903418eJohann * allows us to use _mm_cmpgt_epi8, which operates on signed byte. */ 631b362b15af34006e6a11974088a46d42b903418eJohann const __m128i clamped_absdiff = _mm_min_epu8( 641b362b15af34006e6a11974088a46d42b903418eJohann _mm_or_si128(pdiff, ndiff), k_16); 651b362b15af34006e6a11974088a46d42b903418eJohann /* Get masks for l2 l1 and l0 adjustments */ 661b362b15af34006e6a11974088a46d42b903418eJohann const __m128i mask2 = _mm_cmpgt_epi8(k_16, clamped_absdiff); 671b362b15af34006e6a11974088a46d42b903418eJohann const __m128i mask1 = _mm_cmpgt_epi8(k_8, clamped_absdiff); 681b362b15af34006e6a11974088a46d42b903418eJohann const __m128i mask0 = _mm_cmpgt_epi8(k_4, clamped_absdiff); 691b362b15af34006e6a11974088a46d42b903418eJohann /* Get adjustments for l2, l1, and l0 */ 701b362b15af34006e6a11974088a46d42b903418eJohann __m128i adj2 = _mm_and_si128(mask2, l32); 711b362b15af34006e6a11974088a46d42b903418eJohann const __m128i adj1 = _mm_and_si128(mask1, l21); 721b362b15af34006e6a11974088a46d42b903418eJohann const __m128i adj0 = _mm_and_si128(mask0, clamped_absdiff); 731b362b15af34006e6a11974088a46d42b903418eJohann __m128i adj, padj, nadj; 741b362b15af34006e6a11974088a46d42b903418eJohann 751b362b15af34006e6a11974088a46d42b903418eJohann /* Combine the adjustments and get absolute adjustments. */ 761b362b15af34006e6a11974088a46d42b903418eJohann adj2 = _mm_add_epi8(adj2, adj1); 771b362b15af34006e6a11974088a46d42b903418eJohann adj = _mm_sub_epi8(l3, adj2); 781b362b15af34006e6a11974088a46d42b903418eJohann adj = _mm_andnot_si128(mask0, adj); 791b362b15af34006e6a11974088a46d42b903418eJohann adj = _mm_or_si128(adj, adj0); 801b362b15af34006e6a11974088a46d42b903418eJohann 811b362b15af34006e6a11974088a46d42b903418eJohann /* Restore the sign and get positive and negative adjustments. */ 821b362b15af34006e6a11974088a46d42b903418eJohann padj = _mm_andnot_si128(diff_sign, adj); 831b362b15af34006e6a11974088a46d42b903418eJohann nadj = _mm_and_si128(diff_sign, adj); 841b362b15af34006e6a11974088a46d42b903418eJohann 851b362b15af34006e6a11974088a46d42b903418eJohann /* Calculate filtered value. */ 861b362b15af34006e6a11974088a46d42b903418eJohann v_running_avg_y = _mm_adds_epu8(v_sig, padj); 871b362b15af34006e6a11974088a46d42b903418eJohann v_running_avg_y = _mm_subs_epu8(v_running_avg_y, nadj); 881b362b15af34006e6a11974088a46d42b903418eJohann _mm_storeu_si128((__m128i *)running_avg_y, v_running_avg_y); 891b362b15af34006e6a11974088a46d42b903418eJohann 901b362b15af34006e6a11974088a46d42b903418eJohann /* Adjustments <=7, and each element in acc_diff can fit in signed 911b362b15af34006e6a11974088a46d42b903418eJohann * char. 921b362b15af34006e6a11974088a46d42b903418eJohann */ 931b362b15af34006e6a11974088a46d42b903418eJohann acc_diff = _mm_adds_epi8(acc_diff, padj); 941b362b15af34006e6a11974088a46d42b903418eJohann acc_diff = _mm_subs_epi8(acc_diff, nadj); 951b362b15af34006e6a11974088a46d42b903418eJohann 961b362b15af34006e6a11974088a46d42b903418eJohann /* Update pointers for next iteration. */ 971b362b15af34006e6a11974088a46d42b903418eJohann sig += sig_stride; 981b362b15af34006e6a11974088a46d42b903418eJohann mc_running_avg_y += mc_avg_y_stride; 991b362b15af34006e6a11974088a46d42b903418eJohann running_avg_y += avg_y_stride; 1001b362b15af34006e6a11974088a46d42b903418eJohann } 1011b362b15af34006e6a11974088a46d42b903418eJohann 1021b362b15af34006e6a11974088a46d42b903418eJohann { 1031b362b15af34006e6a11974088a46d42b903418eJohann /* Compute the sum of all pixel differences of this MB. */ 1041b362b15af34006e6a11974088a46d42b903418eJohann union sum_union s; 1051b362b15af34006e6a11974088a46d42b903418eJohann int sum_diff = 0; 1061b362b15af34006e6a11974088a46d42b903418eJohann s.v = acc_diff; 1071b362b15af34006e6a11974088a46d42b903418eJohann sum_diff = s.e[0] + s.e[1] + s.e[2] + s.e[3] + s.e[4] + s.e[5] 1081b362b15af34006e6a11974088a46d42b903418eJohann + s.e[6] + s.e[7] + s.e[8] + s.e[9] + s.e[10] + s.e[11] 1091b362b15af34006e6a11974088a46d42b903418eJohann + s.e[12] + s.e[13] + s.e[14] + s.e[15]; 1101b362b15af34006e6a11974088a46d42b903418eJohann 1111b362b15af34006e6a11974088a46d42b903418eJohann if (abs(sum_diff) > SUM_DIFF_THRESHOLD) 1121b362b15af34006e6a11974088a46d42b903418eJohann { 1131b362b15af34006e6a11974088a46d42b903418eJohann return COPY_BLOCK; 1141b362b15af34006e6a11974088a46d42b903418eJohann } 1151b362b15af34006e6a11974088a46d42b903418eJohann } 1161b362b15af34006e6a11974088a46d42b903418eJohann 1171b362b15af34006e6a11974088a46d42b903418eJohann vp8_copy_mem16x16(running_avg->y_buffer + y_offset, avg_y_stride, 1181b362b15af34006e6a11974088a46d42b903418eJohann signal->thismb, sig_stride); 1191b362b15af34006e6a11974088a46d42b903418eJohann return FILTER_BLOCK; 1201b362b15af34006e6a11974088a46d42b903418eJohann} 121