ref: 6847239cc62b476b397eae0bcc672def968b0fa4
dir: /unix/snd_sdl.c/
#include "quakedef.h" #include <SDL.h> static SDL_AudioDeviceID adev; long sndqueued(void) { return SDL_GetQueuedAudioSize(adev); } void sndstop(void) { if(adev == 0) return; SDL_ClearQueuedAudio(adev); SDL_PauseAudioDevice(adev, 1); } void sndwrite(uchar *buf, long sz) { if(adev == 0) return; if(SDL_QueueAudio(adev, buf, sz) == 0) SDL_PauseAudioDevice(adev, 0); else{ Con_Printf("sndwrite: %s\n", SDL_GetError()); sndclose(); } } void sndclose(void) { if(adev == 0) return; SDL_CloseAudioDevice(adev); SDL_QuitSubSystem(SDL_INIT_AUDIO); adev = 0; } int sndopen(void) { SDL_AudioSpec got, want = { .freq = 44100, .format = AUDIO_S16LSB, .channels = 2, .samples = 441, 0, }; if(SDL_InitSubSystem(SDL_INIT_AUDIO) != 0){ err: Con_Printf("sndopen: %s\n", SDL_GetError()); return -1; } if((adev = SDL_OpenAudioDevice(nil, 0, &want, &got, SDL_AUDIO_ALLOW_SAMPLES_CHANGE)) == 0){ SDL_QuitSubSystem(SDL_INIT_AUDIO); goto err; } return 0; }