Mercurial > sdl-ios-xcode
annotate test/loopwave.c @ 1660:8b9d79e7eacf SDL-1.3
Added API requested in bug #43:
Added SDL_GetNumVideoDrivers() and SDL_GetVideoDriver().
Replaced SDL_VideoDriverName() with SDL_GetCurrentVideoDriver()
Added SDL_GetNumAudioDrivers() and SDL_GetAudioDriver().
Replaced SDL_AudioDriverName() with SDL_GetCurrentAudioDriver()
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 20 May 2006 04:35:58 +0000 |
| parents | 14717b52abc0 |
| children | 782fd950bd46 |
| rev | line source |
|---|---|
| 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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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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26 |
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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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27 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
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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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28 static void quit(int rc) |
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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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29 { |
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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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30 SDL_Quit(); |
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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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31 exit(rc); |
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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
|
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 |
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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
|
34 |
| 1659 | 35 void SDLCALL fillerup(void *unused, Uint8 *stream, int len) |
| 0 | 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 { | |
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65 int i, n; |
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66 |
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parents:
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67 /* Print available audio drivers */ |
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parents:
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68 n = SDL_GetNumAudioDrivers(); |
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parents:
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69 if ( n == 0 ) { |
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parents:
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70 printf("No built-in audio drivers\n"); |
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parents:
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71 } else { |
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8b9d79e7eacf
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Sam Lantinga <slouken@libsdl.org>
parents:
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72 printf("Built-in audio drivers:"); |
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Sam Lantinga <slouken@libsdl.org>
parents:
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73 for ( i = 0; i < n; ++i ) { |
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8b9d79e7eacf
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parents:
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74 if ( i > 0 ) { |
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8b9d79e7eacf
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Sam Lantinga <slouken@libsdl.org>
parents:
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75 printf(","); |
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Added API requested in bug #43:
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parents:
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76 } |
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8b9d79e7eacf
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Sam Lantinga <slouken@libsdl.org>
parents:
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77 printf(" %s", SDL_GetAudioDriver(i)); |
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8b9d79e7eacf
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Sam Lantinga <slouken@libsdl.org>
parents:
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78 } |
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8b9d79e7eacf
Added API requested in bug #43:
Sam Lantinga <slouken@libsdl.org>
parents:
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79 printf("\n"); |
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8b9d79e7eacf
Added API requested in bug #43:
Sam Lantinga <slouken@libsdl.org>
parents:
1659
diff
changeset
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80 } |
| 0 | 81 |
| 82 /* Load the SDL library */ | |
| 83 if ( SDL_Init(SDL_INIT_AUDIO) < 0 ) { | |
| 84 fprintf(stderr, "Couldn't initialize SDL: %s\n",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
|
85 return(1); |
| 0 | 86 } |
| 87 if ( argv[1] == NULL ) { | |
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*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
1151
diff
changeset
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88 argv[1] = "sample.wav"; |
| 0 | 89 } |
| 90 /* Load the wave file into memory */ | |
| 91 if ( SDL_LoadWAV(argv[1], | |
| 92 &wave.spec, &wave.sound, &wave.soundlen) == NULL ) { | |
| 93 fprintf(stderr, "Couldn't load %s: %s\n", | |
| 94 argv[1], SDL_GetError()); | |
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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
|
95 quit(1); |
| 0 | 96 } |
|
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0394f8ebc42d
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
1151
diff
changeset
|
97 |
| 0 | 98 wave.spec.callback = fillerup; |
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0394f8ebc42d
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
1151
diff
changeset
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99 #if HAVE_SIGNAL_H |
| 0 | 100 /* Set the signals */ |
| 101 #ifdef SIGHUP | |
| 102 signal(SIGHUP, poked); | |
| 103 #endif | |
| 104 signal(SIGINT, poked); | |
| 105 #ifdef SIGQUIT | |
| 106 signal(SIGQUIT, poked); | |
| 107 #endif | |
| 108 signal(SIGTERM, poked); | |
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*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
1151
diff
changeset
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109 #endif /* HAVE_SIGNAL_H */ |
| 0 | 110 |
| 111 /* Initialize fillerup() variables */ | |
| 112 if ( SDL_OpenAudio(&wave.spec, NULL) < 0 ) { | |
| 113 fprintf(stderr, "Couldn't open audio: %s\n", SDL_GetError()); | |
| 114 SDL_FreeWAV(wave.sound); | |
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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
|
115 quit(2); |
| 0 | 116 } |
| 117 SDL_PauseAudio(0); | |
| 118 | |
| 119 /* Let the audio run */ | |
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parents:
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120 printf("Using audio driver: %s\n", SDL_GetCurrentAudioDriver()); |
| 0 | 121 while ( ! done && (SDL_GetAudioStatus() == SDL_AUDIO_PLAYING) ) |
| 122 SDL_Delay(1000); | |
| 123 | |
| 124 /* Clean up on signal */ | |
| 125 SDL_CloseAudio(); | |
| 126 SDL_FreeWAV(wave.sound); | |
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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
|
127 SDL_Quit(); |
| 0 | 128 return(0); |
| 129 } |