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Enable the ALSA debug code via environment variable

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--HG--
branch : SDL-1.2
This commit is contained in:
Sam Lantinga
2009-10-17 07:04:58 +00:00
parent b634b7d198
commit e79fc21546
1 changed files with 11 additions and 9 deletions
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20
src/audio/alsa/SDL_alsa_audio.c
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@@ -507,16 +507,18 @@ static int ALSA_OpenAudio(_THIS, SDL_AudioSpec *spec)
return(-1);
}
/* This is useful for debugging... */
#ifdef DEBUG_PERIOD_SIZE
{ snd_pcm_uframes_t bufsize; snd_pcm_sframes_t persize; unsigned int periods; int dir;
SDL_NAME(snd_pcm_hw_params_get_buffer_size)(hwparams, &bufsize);
SDL_NAME(snd_pcm_hw_params_get_period_size)(hwparams, &persize, &dir);
SDL_NAME(snd_pcm_hw_params_get_periods)(hwparams, &periods, &dir);
/* This is useful for debugging */
if (getenv("SDL_AUDIO_ALSA_DEBUG_PERIOD_SIZE")) {
snd_pcm_uframes_t bufsize;
snd_pcm_sframes_t persize;
unsigned int periods; int dir;
fprintf(stderr, "ALSA: period size = %ld, periods = %u, buffer size = %lu\n", persize, periods, bufsize);
}
#endif
SDL_NAME(snd_pcm_hw_params_get_buffer_size)(hwparams, &bufsize);
SDL_NAME(snd_pcm_hw_params_get_period_size)(hwparams, &persize, &dir);
SDL_NAME(snd_pcm_hw_params_get_periods)(hwparams, &periods, &dir);
fprintf(stderr, "ALSA: period size = %ld, periods = %u, buffer size = %lu\n", persize, periods, bufsize);
}
/* Set the software parameters */
snd_pcm_sw_params_alloca(&swparams);