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source: downloads/freealut-1.1.0/examples/playfile.c @ 25

Last change on this file since 25 was 14, checked in by landauf, 17 years ago

added freealut

File size: 1.9 KB
Line 
1#include <stdlib.h>
2#include <stdio.h>
3#include <string.h>
4
5#include <AL/alut.h>
6
7/*
8 * This program loads and plays a variety of files.
9 */
10
11static void
12playFile (const char *fileName)
13{
14  ALuint buffer;
15  ALuint source;
16  ALenum error;
17  ALint status;
18
19  /* Create an AL buffer from the given sound file. */
20  buffer = alutCreateBufferFromFile (fileName);
21  if (buffer == AL_NONE)
22    {
23      error = alutGetError ();
24      fprintf (stderr, "Error loading file: '%s'\n",
25               alutGetErrorString (error));
26      alutExit ();
27      exit (EXIT_FAILURE);
28    }
29
30  /* Generate a single source, attach the buffer to it and start playing. */
31  alGenSources (1, &source);
32  alSourcei (source, AL_BUFFER, buffer);
33  alSourcePlay (source);
34
35  /* Normally nothing should go wrong above, but one never knows... */
36  error = alGetError ();
37  if (error != ALUT_ERROR_NO_ERROR)
38    {
39      fprintf (stderr, "%s\n", alGetString (error));
40      alutExit ();
41      exit (EXIT_FAILURE);
42    }
43
44  /* Check every 0.1 seconds if the sound is still playing. */
45  do
46    {
47      alutSleep (0.1f);
48      alGetSourcei (source, AL_SOURCE_STATE, &status);
49    }
50  while (status == AL_PLAYING);
51}
52
53int
54main (int argc, char **argv)
55{
56  /* Initialise ALUT and eat any ALUT-specific commandline flags. */
57  if (!alutInit (&argc, argv))
58    {
59      ALenum error = alutGetError ();
60      fprintf (stderr, "%s\n", alutGetErrorString (error));
61      exit (EXIT_FAILURE);
62    }
63
64  /* Check for correct usage. */
65  if (argc != 2)
66    {
67      fprintf (stderr, "usage: playfile <fileName>\n");
68      alutExit ();
69      exit (EXIT_FAILURE);
70    }
71
72  /* If everything is OK, play the sound file and exit when finished. */
73  playFile (argv[1]);
74
75  if (!alutExit ())
76    {
77      ALenum error = alutGetError ();
78      fprintf (stderr, "%s\n", alutGetErrorString (error));
79      exit (EXIT_FAILURE);
80    }
81  return EXIT_SUCCESS;
82}
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