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 #include <emmintrin.h>  // SSE2
12 
13 #include "./vp9_rtcd.h"
14 #include "./vpx_config.h"
15 
16 #include "vp9/encoder/vp9_variance.h"
17 #include "vpx_ports/mem.h"
18 
19 // The 2 unused parameters are place holders for PIC enabled build.
20 #define DECL(w, opt) \
21 int vp9_sub_pixel_variance##w##xh_##opt(const uint8_t *src, \
22                                         ptrdiff_t src_stride, \
23                                         int x_offset, int y_offset, \
24                                         const uint8_t *dst, \
25                                         ptrdiff_t dst_stride, \
26                                         int height, unsigned int *sse, \
27                                         void *unused0, void *unused)
28 #define DECLS(opt1, opt2) \
29 DECL(4, opt2); \
30 DECL(8, opt1); \
31 DECL(16, opt1)
32 
33 DECLS(sse2, sse);
34 DECLS(ssse3, ssse3);
35 #undef DECLS
36 #undef DECL
37 
38 #define FN(w, h, wf, wlog2, hlog2, opt, cast) \
39 unsigned int vp9_sub_pixel_variance##w##x##h##_##opt(const uint8_t *src, \
40                                                      int src_stride, \
41                                                      int x_offset, \
42                                                      int y_offset, \
43                                                      const uint8_t *dst, \
44                                                      int dst_stride, \
45                                                      unsigned int *sse_ptr) { \
46   unsigned int sse; \
47   int se = vp9_sub_pixel_variance##wf##xh_##opt(src, src_stride, x_offset, \
48                                                 y_offset, dst, dst_stride, \
49                                                 h, &sse, NULL, NULL); \
50   if (w > wf) { \
51     unsigned int sse2; \
52     int se2 = vp9_sub_pixel_variance##wf##xh_##opt(src + 16, src_stride, \
53                                                    x_offset, y_offset, \
54                                                    dst + 16, dst_stride, \
55                                                    h, &sse2, NULL, NULL); \
56     se += se2; \
57     sse += sse2; \
58     if (w > wf * 2) { \
59       se2 = vp9_sub_pixel_variance##wf##xh_##opt(src + 32, src_stride, \
60                                                  x_offset, y_offset, \
61                                                  dst + 32, dst_stride, \
62                                                  h, &sse2, NULL, NULL); \
63       se += se2; \
64       sse += sse2; \
65       se2 = vp9_sub_pixel_variance##wf##xh_##opt(src + 48, src_stride, \
66                                                  x_offset, y_offset, \
67                                                  dst + 48, dst_stride, \
68                                                  h, &sse2, NULL, NULL); \
69       se += se2; \
70       sse += sse2; \
71     } \
72   } \
73   *sse_ptr = sse; \
74   return sse - ((cast se * se) >> (wlog2 + hlog2)); \
75 }
76 
77 #define FNS(opt1, opt2) \
78 FN(64, 64, 16, 6, 6, opt1, (int64_t)); \
79 FN(64, 32, 16, 6, 5, opt1, (int64_t)); \
80 FN(32, 64, 16, 5, 6, opt1, (int64_t)); \
81 FN(32, 32, 16, 5, 5, opt1, (int64_t)); \
82 FN(32, 16, 16, 5, 4, opt1, (int64_t)); \
83 FN(16, 32, 16, 4, 5, opt1, (int64_t)); \
84 FN(16, 16, 16, 4, 4, opt1, (unsigned int)); \
85 FN(16,  8, 16, 4, 3, opt1, (unsigned int)); \
86 FN(8,  16,  8, 3, 4, opt1, (unsigned int)); \
87 FN(8,   8,  8, 3, 3, opt1, (unsigned int)); \
88 FN(8,   4,  8, 3, 2, opt1, (unsigned int)); \
89 FN(4,   8,  4, 2, 3, opt2, (unsigned int)); \
90 FN(4,   4,  4, 2, 2, opt2, (unsigned int))
91 
92 FNS(sse2, sse);
93 FNS(ssse3, ssse3);
94 
95 #undef FNS
96 #undef FN
97 
98 // The 2 unused parameters are place holders for PIC enabled build.
99 #define DECL(w, opt) \
100 int vp9_sub_pixel_avg_variance##w##xh_##opt(const uint8_t *src, \
101                                             ptrdiff_t src_stride, \
102                                             int x_offset, int y_offset, \
103                                             const uint8_t *dst, \
104                                             ptrdiff_t dst_stride, \
105                                             const uint8_t *sec, \
106                                             ptrdiff_t sec_stride, \
107                                             int height, unsigned int *sse, \
108                                             void *unused0, void *unused)
109 #define DECLS(opt1, opt2) \
110 DECL(4, opt2); \
111 DECL(8, opt1); \
112 DECL(16, opt1)
113 
114 DECLS(sse2, sse);
115 DECLS(ssse3, ssse3);
116 #undef DECL
117 #undef DECLS
118 
119 #define FN(w, h, wf, wlog2, hlog2, opt, cast) \
120 unsigned int vp9_sub_pixel_avg_variance##w##x##h##_##opt(const uint8_t *src, \
121                                                          int src_stride, \
122                                                          int x_offset, \
123                                                          int y_offset, \
124                                                          const uint8_t *dst, \
125                                                          int dst_stride, \
126                                                          unsigned int *sseptr, \
127                                                          const uint8_t *sec) { \
128   unsigned int sse; \
129   int se = vp9_sub_pixel_avg_variance##wf##xh_##opt(src, src_stride, x_offset, \
130                                                     y_offset, dst, dst_stride, \
131                                                     sec, w, h, &sse, NULL, \
132                                                     NULL); \
133   if (w > wf) { \
134     unsigned int sse2; \
135     int se2 = vp9_sub_pixel_avg_variance##wf##xh_##opt(src + 16, src_stride, \
136                                                        x_offset, y_offset, \
137                                                        dst + 16, dst_stride, \
138                                                        sec + 16, w, h, &sse2, \
139                                                        NULL, NULL); \
140     se += se2; \
141     sse += sse2; \
142     if (w > wf * 2) { \
143       se2 = vp9_sub_pixel_avg_variance##wf##xh_##opt(src + 32, src_stride, \
144                                                      x_offset, y_offset, \
145                                                      dst + 32, dst_stride, \
146                                                      sec + 32, w, h, &sse2, \
147                                                      NULL, NULL); \
148       se += se2; \
149       sse += sse2; \
150       se2 = vp9_sub_pixel_avg_variance##wf##xh_##opt(src + 48, src_stride, \
151                                                      x_offset, y_offset, \
152                                                      dst + 48, dst_stride, \
153                                                      sec + 48, w, h, &sse2, \
154                                                      NULL, NULL); \
155       se += se2; \
156       sse += sse2; \
157     } \
158   } \
159   *sseptr = sse; \
160   return sse - ((cast se * se) >> (wlog2 + hlog2)); \
161 }
162 
163 #define FNS(opt1, opt2) \
164 FN(64, 64, 16, 6, 6, opt1, (int64_t)); \
165 FN(64, 32, 16, 6, 5, opt1, (int64_t)); \
166 FN(32, 64, 16, 5, 6, opt1, (int64_t)); \
167 FN(32, 32, 16, 5, 5, opt1, (int64_t)); \
168 FN(32, 16, 16, 5, 4, opt1, (int64_t)); \
169 FN(16, 32, 16, 4, 5, opt1, (int64_t)); \
170 FN(16, 16, 16, 4, 4, opt1, (unsigned int)); \
171 FN(16,  8, 16, 4, 3, opt1, (unsigned int)); \
172 FN(8,  16,  8, 3, 4, opt1, (unsigned int)); \
173 FN(8,   8,  8, 3, 3, opt1, (unsigned int)); \
174 FN(8,   4,  8, 3, 2, opt1, (unsigned int)); \
175 FN(4,   8,  4, 2, 3, opt2, (unsigned int)); \
176 FN(4,   4,  4, 2, 2, opt2, (unsigned int))
177 
178 FNS(sse2, sse);
179 FNS(ssse3, ssse3);
180 
181 #undef FNS
182 #undef FN
183