Mercurial > almixer_isolated

annotate EXAMPLES/playstream.c @ 44:56855942fdc6

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Split off background thread (threads only) termination and creation into separate functions from Interruption handling to make it easier to avoid race condition bug with Apple rdar://10081775 w.r.t. setting the OpenAL context. New APIs to suspend and resume update threads. Interruption handling calls these automatically. Also partially regressed simplification with regards to getting the current playing state in the main update loop.
author Eric Wing <ewing@anscamobile.com>
date Tue, 13 Sep 2011 18:03:21 -0700
parents ee50db043251
children b1e13d5688d1
rev   line source
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1 #include "ALmixer.h"
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2 #include <stdio.h>
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3 #include <stdlib.h>
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4
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5 #ifdef ALMIXER_COMPILE_WITHOUT_SDL
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6 #if defined(_WIN32)
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7 #define WIN32_LEAN_AND_MEAN
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8 #include <windows.h>
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9 #else
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10 #include <unistd.h>
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11 #endif
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12
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13 static void Internal_Delay(ALuint milliseconds_delay)
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14 {
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15 #if defined(_WIN32)
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16 Sleep(milliseconds_delay);
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17 #else
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18 usleep(milliseconds_delay);
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19 #endif
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20 }
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21 #else
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22 #include "SDL.h"
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23 #define Internal_Delay SDL_Delay
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24 #endif
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25 #define MAX_SOURCES 16
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26
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27 ALboolean g_PlayingAudio[MAX_SOURCES];
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28
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29 void Internal_SoundFinished_CallbackIntercept(ALint which_channel, ALuint al_source, ALmixer_Data* almixer_data, ALboolean finished_naturally, void* user_data)
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30 {
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31 fprintf(stderr, "Channel %d finished\n", which_channel);
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32 g_PlayingAudio[which_channel] = AL_FALSE;
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33 }
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34
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35 int main(int argc, char* argv[])
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36 {
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37 ALint i;
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38 ALboolean still_playing = AL_TRUE;
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39
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40 ALmixer_Data* audio_data[MAX_SOURCES];
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41
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42 if(argc < 1)
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43 {
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44 printf("Pass a sound file (or files) as a parameter\n");
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45 }
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46 else if(argc-1 > MAX_SOURCES)
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47 {
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48 printf("Maximum supported files is %d\n", MAX_SOURCES);
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49 }
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50 ALmixer_Init(ALMIXER_DEFAULT_FREQUENCY, ALMIXER_DEFAULT_NUM_SOURCES, ALMIXER_DEFAULT_REFRESH);
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51
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52 for(i=1; i<argc; i++)
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53 {
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54 if(!(audio_data[i-1]=ALmixer_LoadStream( argv[i], ALMIXER_DEFAULT_BUFFERSIZE, ALMIXER_DEFAULT_QUEUE_BUFFERS, ALMIXER_DEFAULT_STARTUP_BUFFERS, AL_FALSE) ))
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55 /*
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56 if(!(audio_data[i-1]=ALmixer_LoadStream( argv[i], 4096, 2, 1, AL_FALSE) ))
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57 if(!(audio_data[i-1]=ALmixer_LoadStream( argv[i], 4096, 5 * 4, 2, AL_FALSE) ))
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58 */
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59 {
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60 printf("%s. Quiting program.\n", ALmixer_GetError());
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61 exit(0);
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62 }
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63 }
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64
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65 ALmixer_SetPlaybackFinishedCallback(Internal_SoundFinished_CallbackIntercept, NULL);
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66
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67 for(i=1; i<argc; i++)
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68 {
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69 g_PlayingAudio[i-1] = AL_TRUE;
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70 ALmixer_PlayChannel(i-1, audio_data[i-1], 0);
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71 }
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72
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73 while(still_playing)
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74 {
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75 still_playing = AL_FALSE;
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76 for(i=1; i<argc; i++)
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77 {
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78 still_playing |= g_PlayingAudio[i-1];
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79 }
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80 ALmixer_Update();
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81 Internal_Delay(10);
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82 }
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83
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84 for(i=1; i<argc; i++)
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85 {
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86 ALmixer_FreeData(audio_data[i-1]);
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87 }
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88
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89 ALmixer_Quit();
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90
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91 return 0;
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92 }
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93