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
vp8_sub_pixel_variance16x16_ssse3(const unsigned char * src_ptr,int src_pixels_per_line,int xoffset,int yoffset,const unsigned char * dst_ptr,int dst_pixels_per_line,unsigned int * sse)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
vp8_sub_pixel_variance16x8_ssse3(const unsigned char * src_ptr,int src_pixels_per_line,int xoffset,int yoffset,const unsigned char * dst_ptr,int dst_pixels_per_line,unsigned int * sse)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