emms --> emms_c, taken from a patch by Ronald Bultje
[libav.git] / libavcodec / motion-test.c
1 /*
2 * (c) 2001 Fabrice Bellard
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 /**
22 * @file motion_test.c
23 * motion test.
24 */
25
26 #include <stdlib.h>
27 #include <stdio.h>
28 #include <string.h>
29 #include <sys/time.h>
30 #include <unistd.h>
31
32 #include "dsputil.h"
33
34 #include "i386/mmx.h"
35
36 #undef exit
37 #undef printf
38
39 int pix_abs16x16_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
40 int pix_abs16x16_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
41 int pix_abs16x16_c(uint8_t *blk1, uint8_t *blk2, int lx);
42 int pix_abs16x16_x2_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
43 int pix_abs16x16_x2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
44 int pix_abs16x16_x2_c(uint8_t *blk1, uint8_t *blk2, int lx);
45 int pix_abs16x16_y2_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
46 int pix_abs16x16_y2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
47 int pix_abs16x16_y2_c(uint8_t *blk1, uint8_t *blk2, int lx);
48 int pix_abs16x16_xy2_mmx(uint8_t *blk1, uint8_t *blk2, int lx);
49 int pix_abs16x16_xy2_mmx1(uint8_t *blk1, uint8_t *blk2, int lx);
50 int pix_abs16x16_xy2_c(uint8_t *blk1, uint8_t *blk2, int lx);
51
52 typedef int motion_func(uint8_t *blk1, uint8_t *blk2, int lx);
53
54 #define WIDTH 64
55 #define HEIGHT 64
56
57 uint8_t img1[WIDTH * HEIGHT];
58 uint8_t img2[WIDTH * HEIGHT];
59
60 void fill_random(uint8_t *tab, int size)
61 {
62 int i;
63 for(i=0;i<size;i++) {
64 #if 1
65 tab[i] = random() % 256;
66 #else
67 tab[i] = i;
68 #endif
69 }
70 }
71
72 void help(void)
73 {
74 printf("motion-test [-h]\n"
75 "test motion implementations\n");
76 exit(1);
77 }
78
79 int64_t gettime(void)
80 {
81 struct timeval tv;
82 gettimeofday(&tv,NULL);
83 return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec;
84 }
85
86 #define NB_ITS 500
87
88 int dummy;
89
90 void test_motion(const char *name,
91 motion_func *test_func, motion_func *ref_func)
92 {
93 int x, y, d1, d2, it;
94 uint8_t *ptr;
95 int64_t ti;
96 printf("testing '%s'\n", name);
97
98 /* test correctness */
99 for(it=0;it<20;it++) {
100
101 fill_random(img1, WIDTH * HEIGHT);
102 fill_random(img2, WIDTH * HEIGHT);
103
104 for(y=0;y<HEIGHT-17;y++) {
105 for(x=0;x<WIDTH-17;x++) {
106 ptr = img2 + y * WIDTH + x;
107 d1 = test_func(img1, ptr, WIDTH);
108 d2 = ref_func(img1, ptr, WIDTH);
109 if (d1 != d2) {
110 printf("error: mmx=%d c=%d\n", d1, d2);
111 }
112 }
113 }
114 }
115 emms_c();
116
117 /* speed test */
118 ti = gettime();
119 d1 = 0;
120 for(it=0;it<NB_ITS;it++) {
121 for(y=0;y<HEIGHT-17;y++) {
122 for(x=0;x<WIDTH-17;x++) {
123 ptr = img2 + y * WIDTH + x;
124 d1 += test_func(img1, ptr, WIDTH);
125 }
126 }
127 }
128 emms_c();
129 dummy = d1; /* avoid optimisation */
130 ti = gettime() - ti;
131
132 printf(" %0.0f kop/s\n",
133 (double)NB_ITS * (WIDTH - 16) * (HEIGHT - 16) /
134 (double)(ti / 1000.0));
135 }
136
137
138 int main(int argc, char **argv)
139 {
140 int c;
141
142 for(;;) {
143 c = getopt(argc, argv, "h");
144 if (c == -1)
145 break;
146 switch(c) {
147 case 'h':
148 help();
149 break;
150 }
151 }
152
153 printf("ffmpeg motion test\n");
154
155 test_motion("mmx", pix_abs16x16_mmx, pix_abs16x16_c);
156 test_motion("mmx_x2", pix_abs16x16_x2_mmx, pix_abs16x16_x2_c);
157 test_motion("mmx_y2", pix_abs16x16_y2_mmx, pix_abs16x16_y2_c);
158 test_motion("mmx_xy2", pix_abs16x16_xy2_mmx, pix_abs16x16_xy2_c);
159 return 0;
160 }