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comparison fbt.c @ 3:e8957085fe8a

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working
author Peter Meerwald <pmeerw@pmeerw.net>
date Sun, 08 May 2011 23:08:45 +0200
parents bac8ed8d6eb9
children 66c77f9ba9b9
comparison
equal deleted inserted replaced
2:bac8ed8d6eb9 3:e8957085fe8a
1 #include <stdlib.h> 1 #include <stdlib.h>
2 #include <stdio.h> 2 #include <stdio.h>
3 #include <fcntl.h> 3 #include <fcntl.h>
4 #include <unistd.h>
4 #include <sys/ioctl.h> 5 #include <sys/ioctl.h>
5 6
6 #include "linux/fb.h" 7 #include "linux/fb.h"
7 8
9 #include "common.h"
10
8 int main(int argc, char *argv[]) { 11 int main(int argc, char *argv[]) {
9 12
10 int fd = open("/dev/fb0", O_RDWR); 13 if (argc != 2) {
14 fprintf(stderr, "usage: fbt /dev/fbX\n");
15 exit(EXIT_FAILURE);
16 }
17
18 int fd = open(argv[1], O_RDWR);
11 if (fd < 0) { 19 if (fd < 0) {
12 perror(""); 20 perror("");
13 exit(EXIT_FAILURE); 21 exit(EXIT_FAILURE);
14 } 22 }
15 23
32 } 40 }
33 41
34 printf("res x %d y %d\n", siv.xres, siv.yres); 42 printf("res x %d y %d\n", siv.xres, siv.yres);
35 printf("bpp %d\n", siv.bits_per_pixel); 43 printf("bpp %d\n", siv.bits_per_pixel);
36 44
45 printf("-------------\n");
46 fflush(stdout);
47
48 jpg_buf_t jpg_buf = build_jpg_from_fb(fd, siv.xres, siv.yres);
49
50 close(fd);
51
52 printf("jpg %ld\n", jpg_buf.size);
53
54 FILE *f = fopen("test.jpg", "wb");
55 if (!f) {
56 fprintf(stderr, "fopen failed\n");
57 exit(EXIT_FAILURE);
58 }
59
60 fwrite(jpg_buf.ptr, 1, jpg_buf.size, f);
61
62 fclose(f);
63
64 free(jpg_buf.ptr);
65
37 exit(EXIT_SUCCESS); 66 exit(EXIT_SUCCESS);
38 } 67 }

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