source: libpipi/trunk/examples/line.c @ 2796

Last change on this file since 2796 was 2796, checked in by Sam Hocevar, 11 years ago
  • line.c: make the line drawing example use aliased lines.
File size: 1.2 KB
Line 
1#include "config.h"
2#include "common.h"
3
4#include <stdio.h>
5#include <stdlib.h>
6#include <string.h>
7
8#include <pipi.h>
9
10int main(int argc, char *argv[])
11{
12    char *srcname = NULL, *dstname = NULL;
13    pipi_image_t *img, *newimg;
14    int count = 10000;
15    int ret = 0;
16    if(argc < 2)
17    {
18        fprintf(stderr, "%s: too few arguments\n", argv[0]);
19        fprintf(stderr, "Usage: %s <src> <dest>\n", argv[0]);
20        return EXIT_FAILURE;
21    }
22
23    srcname = argv[1];
24    dstname = argv[2];
25
26    img = pipi_load(srcname);
27
28    if(!img) {
29        fprintf(stderr, "Can't open %s for reading\n", srcname);
30    }
31
32    newimg = pipi_copy(img);
33    pipi_free(img);
34
35    int w = pipi_get_image_width(newimg);
36    int h = pipi_get_image_height(newimg);
37
38    while(count--)
39    {
40        pipi_draw_line(newimg,
41                       rand() % w, rand() % h,
42                       rand() % w, rand() % h,
43                       rand(),
44                       0);
45        pipi_draw_line(newimg,
46                       rand() % w, rand() % h,
47                       rand() % w, rand() % h,
48                       rand(),
49                       1);
50    }
51
52    pipi_save(newimg, dstname);
53
54    pipi_free(newimg);
55
56    return ret;
57}
58
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