1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 12 #include "vp8/encoder/variance.h" 13 #include "vp8/common/pragmas.h" 14 #include "vpx_ports/mem.h" 15 16 extern unsigned int vp8_get16x16var_sse2 17 ( 18 const unsigned char *src_ptr, 19 int source_stride, 20 const unsigned char *ref_ptr, 21 int recon_stride, 22 unsigned int *SSE, 23 int *Sum 24 ); 25 extern void vp8_half_horiz_vert_variance16x_h_sse2 26 ( 27 const unsigned char *ref_ptr, 28 int ref_pixels_per_line, 29 const unsigned char *src_ptr, 30 int src_pixels_per_line, 31 unsigned int Height, 32 int *sum, 33 unsigned int *sumsquared 34 ); 35 extern void vp8_half_horiz_variance16x_h_sse2 36 ( 37 const unsigned char *ref_ptr, 38 int ref_pixels_per_line, 39 const unsigned char *src_ptr, 40 int src_pixels_per_line, 41 unsigned int Height, 42 int *sum, 43 unsigned int *sumsquared 44 ); 45 extern void vp8_half_vert_variance16x_h_sse2 46 ( 47 const unsigned char *ref_ptr, 48 int ref_pixels_per_line, 49 const unsigned char *src_ptr, 50 int src_pixels_per_line, 51 unsigned int Height, 52 int *sum, 53 unsigned int *sumsquared 54 ); 55 extern void vp8_filter_block2d_bil_var_ssse3 56 ( 57 const unsigned char *ref_ptr, 58 int ref_pixels_per_line, 59 const unsigned char *src_ptr, 60 int src_pixels_per_line, 61 unsigned int Height, 62 int xoffset, 63 int yoffset, 64 int *sum, 65 unsigned int *sumsquared 66 ); 67 68 unsigned int vp8_sub_pixel_variance16x16_ssse3 69 ( 70 const unsigned char *src_ptr, 71 int src_pixels_per_line, 72 int xoffset, 73 int yoffset, 74 const unsigned char *dst_ptr, 75 int dst_pixels_per_line, 76 unsigned int *sse 77 ) 78 { 79 int xsum0; 80 unsigned int xxsum0; 81 82 // note we could avoid these if statements if the calling function 83 // just called the appropriate functions inside. 84 if (xoffset == 4 && yoffset == 0) 85 { 86 vp8_half_horiz_variance16x_h_sse2( 87 src_ptr, src_pixels_per_line, 88 dst_ptr, dst_pixels_per_line, 16, 89 &xsum0, &xxsum0); 90 } 91 else if (xoffset == 0 && yoffset == 4) 92 { 93 vp8_half_vert_variance16x_h_sse2( 94 src_ptr, src_pixels_per_line, 95 dst_ptr, dst_pixels_per_line, 16, 96 &xsum0, &xxsum0); 97 } 98 else if (xoffset == 4 && yoffset == 4) 99 { 100 vp8_half_horiz_vert_variance16x_h_sse2( 101 src_ptr, src_pixels_per_line, 102 dst_ptr, dst_pixels_per_line, 16, 103 &xsum0, &xxsum0); 104 } 105 else 106 { 107 vp8_filter_block2d_bil_var_ssse3( 108 src_ptr, src_pixels_per_line, 109 dst_ptr, dst_pixels_per_line, 16, 110 xoffset, yoffset, 111 &xsum0, &xxsum0); 112 } 113 114 *sse = xxsum0; 115 return (xxsum0 - ((xsum0 * xsum0) >> 8)); 116 } 117 118 unsigned int vp8_sub_pixel_variance16x8_ssse3 119 ( 120 const unsigned char *src_ptr, 121 int src_pixels_per_line, 122 int xoffset, 123 int yoffset, 124 const unsigned char *dst_ptr, 125 int dst_pixels_per_line, 126 unsigned int *sse 127 128 ) 129 { 130 int xsum0; 131 unsigned int xxsum0; 132 133 if (xoffset == 4 && yoffset == 0) 134 { 135 vp8_half_horiz_variance16x_h_sse2( 136 src_ptr, src_pixels_per_line, 137 dst_ptr, dst_pixels_per_line, 8, 138 &xsum0, &xxsum0); 139 } 140 else if (xoffset == 0 && yoffset == 4) 141 { 142 vp8_half_vert_variance16x_h_sse2( 143 src_ptr, src_pixels_per_line, 144 dst_ptr, dst_pixels_per_line, 8, 145 &xsum0, &xxsum0); 146 } 147 else if (xoffset == 4 && yoffset == 4) 148 { 149 vp8_half_horiz_vert_variance16x_h_sse2( 150 src_ptr, src_pixels_per_line, 151 dst_ptr, dst_pixels_per_line, 8, 152 &xsum0, &xxsum0); 153 } 154 else 155 { 156 vp8_filter_block2d_bil_var_ssse3( 157 src_ptr, src_pixels_per_line, 158 dst_ptr, dst_pixels_per_line, 8, 159 xoffset, yoffset, 160 &xsum0, &xxsum0); 161 } 162 163 *sse = xxsum0; 164 return (xxsum0 - ((xsum0 * xsum0) >> 7)); 165 } 166
