Mercurial > sdl-ios-xcode
annotate test/loopwave.c @ 1488:29ea15e37aea
Eric is setting up X11 support for the XCode project
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 09 Mar 2006 13:25:43 +0000 |
parents | 0394f8ebc42d |
children | 14717b52abc0 |
rev | line source |
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0 | 1 |
2 /* Program to load a wave file and loop playing it using SDL sound */ | |
3 | |
4 /* loopwaves.c is much more robust in handling WAVE files -- | |
5 This is only for simple WAVEs | |
6 */ | |
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7 #include "SDL_config.h" |
0 | 8 |
9 #include <stdio.h> | |
10 #include <stdlib.h> | |
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11 |
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12 #if HAVE_SIGNAL_H |
0 | 13 #include <signal.h> |
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14 #endif |
0 | 15 |
16 #include "SDL.h" | |
17 #include "SDL_audio.h" | |
18 | |
19 struct { | |
20 SDL_AudioSpec spec; | |
21 Uint8 *sound; /* Pointer to wave data */ | |
22 Uint32 soundlen; /* Length of wave data */ | |
23 int soundpos; /* Current play position */ | |
24 } wave; | |
25 | |
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Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
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26 |
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
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27 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
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28 static void quit(int rc) |
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
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29 { |
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
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30 SDL_Quit(); |
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
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31 exit(rc); |
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
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32 } |
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
33 |
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
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34 |
0 | 35 void fillerup(void *unused, Uint8 *stream, int len) |
36 { | |
37 Uint8 *waveptr; | |
38 int waveleft; | |
39 | |
40 /* Set up the pointers */ | |
41 waveptr = wave.sound + wave.soundpos; | |
42 waveleft = wave.soundlen - wave.soundpos; | |
43 | |
44 /* Go! */ | |
45 while ( waveleft <= len ) { | |
46 SDL_MixAudio(stream, waveptr, waveleft, SDL_MIX_MAXVOLUME); | |
47 stream += waveleft; | |
48 len -= waveleft; | |
49 waveptr = wave.sound; | |
50 waveleft = wave.soundlen; | |
51 wave.soundpos = 0; | |
52 } | |
53 SDL_MixAudio(stream, waveptr, len, SDL_MIX_MAXVOLUME); | |
54 wave.soundpos += len; | |
55 } | |
56 | |
57 static int done = 0; | |
58 void poked(int sig) | |
59 { | |
60 done = 1; | |
61 } | |
62 | |
63 int main(int argc, char *argv[]) | |
64 { | |
65 char name[32]; | |
66 | |
67 /* Load the SDL library */ | |
68 if ( SDL_Init(SDL_INIT_AUDIO) < 0 ) { | |
69 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); | |
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Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
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70 return(1); |
0 | 71 } |
72 if ( argv[1] == NULL ) { | |
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parents:
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73 argv[1] = "sample.wav"; |
0 | 74 } |
75 /* Load the wave file into memory */ | |
76 if ( SDL_LoadWAV(argv[1], | |
77 &wave.spec, &wave.sound, &wave.soundlen) == NULL ) { | |
78 fprintf(stderr, "Couldn't load %s: %s\n", | |
79 argv[1], SDL_GetError()); | |
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be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
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80 quit(1); |
0 | 81 } |
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0394f8ebc42d
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
1151
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82 |
0 | 83 wave.spec.callback = fillerup; |
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0394f8ebc42d
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Sam Lantinga <slouken@libsdl.org>
parents:
1151
diff
changeset
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84 #if HAVE_SIGNAL_H |
0 | 85 /* Set the signals */ |
86 #ifdef SIGHUP | |
87 signal(SIGHUP, poked); | |
88 #endif | |
89 signal(SIGINT, poked); | |
90 #ifdef SIGQUIT | |
91 signal(SIGQUIT, poked); | |
92 #endif | |
93 signal(SIGTERM, poked); | |
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0394f8ebc42d
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
1151
diff
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94 #endif /* HAVE_SIGNAL_H */ |
0 | 95 |
96 /* Initialize fillerup() variables */ | |
97 if ( SDL_OpenAudio(&wave.spec, NULL) < 0 ) { | |
98 fprintf(stderr, "Couldn't open audio: %s\n", SDL_GetError()); | |
99 SDL_FreeWAV(wave.sound); | |
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
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100 quit(2); |
0 | 101 } |
102 SDL_PauseAudio(0); | |
103 | |
104 /* Let the audio run */ | |
105 printf("Using audio driver: %s\n", SDL_AudioDriverName(name, 32)); | |
106 while ( ! done && (SDL_GetAudioStatus() == SDL_AUDIO_PLAYING) ) | |
107 SDL_Delay(1000); | |
108 | |
109 /* Clean up on signal */ | |
110 SDL_CloseAudio(); | |
111 SDL_FreeWAV(wave.sound); | |
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be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
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112 SDL_Quit(); |
0 | 113 return(0); |
114 } |