Mercurial > sdl-ios-xcode
annotate test/loopwave.c @ 2763:6fc50bdd88c0
Some cleanups on the new XInput code.
One or two things got moved around, but largely this is hooked up correctly
in the Unix configure system now: it can be dynamically loaded and fallback
gracefully if not available, or libXi can be directly linked to libSDL.
XInput support can be --disable'd from the configure script, too (defaults to
enabled).
Please note that while the framework is in place to gracefully fallback, the
current state of the source requires XInput. We'll need to adjust a few
things still to correct this.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Wed, 17 Sep 2008 08:20:57 +0000 |
parents | 8b76cc268771 |
children | aecbdf3362c3 |
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 | |
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19 struct |
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20 { |
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21 SDL_AudioSpec spec; |
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22 Uint8 *sound; /* Pointer to wave data */ |
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23 Uint32 soundlen; /* Length of wave data */ |
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24 int soundpos; /* Current play position */ |
0 | 25 } wave; |
26 | |
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27 |
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28 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
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29 static void |
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30 quit(int rc) |
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31 { |
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32 SDL_Quit(); |
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33 exit(rc); |
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34 } |
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35 |
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36 |
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37 void SDLCALL |
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38 fillerup(void *unused, Uint8 * stream, int len) |
0 | 39 { |
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40 Uint8 *waveptr; |
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41 int waveleft; |
0 | 42 |
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43 /* Set up the pointers */ |
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44 waveptr = wave.sound + wave.soundpos; |
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45 waveleft = wave.soundlen - wave.soundpos; |
0 | 46 |
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47 /* Go! */ |
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48 while (waveleft <= len) { |
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49 SDL_memcpy(stream, waveptr, waveleft); |
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50 stream += waveleft; |
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51 len -= waveleft; |
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52 waveptr = wave.sound; |
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53 waveleft = wave.soundlen; |
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54 wave.soundpos = 0; |
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55 } |
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56 SDL_memcpy(stream, waveptr, len); |
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57 wave.soundpos += len; |
0 | 58 } |
59 | |
60 static int done = 0; | |
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61 void |
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62 poked(int sig) |
0 | 63 { |
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64 done = 1; |
0 | 65 } |
66 | |
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67 int |
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68 main(int argc, char *argv[]) |
0 | 69 { |
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70 /* Load the SDL library */ |
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71 if (SDL_Init(SDL_INIT_AUDIO) < 0) { |
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72 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); |
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73 return (1); |
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74 } |
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75 |
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76 if (argv[1] == NULL) { |
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77 argv[1] = "sample.wav"; |
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78 } |
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79 /* Load the wave file into memory */ |
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80 if (SDL_LoadWAV(argv[1], &wave.spec, &wave.sound, &wave.soundlen) == NULL) { |
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81 fprintf(stderr, "Couldn't load %s: %s\n", argv[1], SDL_GetError()); |
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82 quit(1); |
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83 } |
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84 |
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85 wave.spec.callback = fillerup; |
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86 #if HAVE_SIGNAL_H |
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87 /* Set the signals */ |
0 | 88 #ifdef SIGHUP |
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89 signal(SIGHUP, poked); |
0 | 90 #endif |
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91 signal(SIGINT, poked); |
0 | 92 #ifdef SIGQUIT |
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93 signal(SIGQUIT, poked); |
0 | 94 #endif |
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95 signal(SIGTERM, poked); |
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96 #endif /* HAVE_SIGNAL_H */ |
0 | 97 |
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98 /* Initialize fillerup() variables */ |
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99 if (SDL_OpenAudio(&wave.spec, NULL) < 0) { |
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100 fprintf(stderr, "Couldn't open audio: %s\n", SDL_GetError()); |
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101 SDL_FreeWAV(wave.sound); |
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102 quit(2); |
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103 } |
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104 SDL_PauseAudio(0); |
0 | 105 |
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106 /* Let the audio run */ |
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107 while (!done && (SDL_GetAudioStatus() == SDL_AUDIO_PLAYING)) |
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108 SDL_Delay(1000); |
0 | 109 |
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110 /* Clean up on signal */ |
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111 SDL_CloseAudio(); |
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112 SDL_FreeWAV(wave.sound); |
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113 SDL_Quit(); |
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114 return (0); |
0 | 115 } |