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GTK+: Make ALSA driver more verbose.

This commit is contained in:
Brandon Wright 2018-06-16 18:13:21 -05:00
parent 5032453b0b
commit 098f8c1c0c
1 changed files with 38 additions and 6 deletions
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44
gtk/src/gtk_sound_driver_alsa.cpp
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@ -70,9 +70,11 @@ S9xAlsaSoundDriver::open_device (void)
snd_pcm_sw_params_t *sw_params;
snd_pcm_hw_params_t *hw_params;
snd_pcm_uframes_t alsa_buffer_size, alsa_period_size;
unsigned int min = 0;
unsigned int max = 0;
printf ("ALSA sound driver initializing...\n");
printf (" --> (Device: default)...");
printf (" --> (Device: default)...\n");
err = snd_pcm_open (&pcm,
"default",
@ -84,9 +86,7 @@ S9xAlsaSoundDriver::open_device (void)
goto fail;
}
printf ("OK\n");
printf (" --> (%s, %s, %dhz, %d ms)...",
printf (" --> (%s, %s, %dhz, %d ms)...\n",
Settings.SixteenBitSound ? "16-bit" : "8-bit",
Settings.Stereo ? "Stereo" : "Mono",
Settings.SoundPlaybackRate,
@ -96,14 +96,43 @@ S9xAlsaSoundDriver::open_device (void)
snd_pcm_hw_params_any (pcm, hw_params);
snd_pcm_hw_params_set_format (pcm, hw_params, Settings.SixteenBitSound ? SND_PCM_FORMAT_S16 : SND_PCM_FORMAT_U8);
snd_pcm_hw_params_set_access (pcm, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED);
snd_pcm_hw_params_set_channels (pcm, hw_params, Settings.Stereo ? 2 : 1);
snd_pcm_hw_params_set_rate_near (pcm, hw_params, &Settings.SoundPlaybackRate, NULL);
snd_pcm_hw_params_set_rate_resample (pcm, hw_params, 0);
snd_pcm_hw_params_set_channels (pcm, hw_params, Settings.Stereo ? 2 : 1);
snd_pcm_hw_params_get_rate_min (hw_params, &min, NULL);
snd_pcm_hw_params_get_rate_max (hw_params, &max, NULL);
printf (" --> Available rates: %d to %d\n", min, max);
if (Settings.SoundPlaybackRate > max && Settings.SoundPlaybackRate < min)
{
printf (" Rate %d not available. Using %d instead.\n", Settings.SoundPlaybackRate, max);
Settings.SoundPlaybackRate = max;
}
snd_pcm_hw_params_set_rate_near (pcm, hw_params, &Settings.SoundPlaybackRate, NULL);
snd_pcm_hw_params_get_buffer_time_min (hw_params, &min, NULL);
snd_pcm_hw_params_get_buffer_time_max (hw_params, &max, NULL);
printf (" --> Available buffer sizes: %dms to %dms\n", min / 1000, max / 1000);
if (buffer_size < min && buffer_size > max)
{
printf (" Buffer size %dms not available. Using %d instead.\n", buffer_size / 1000, (min + max) / 2000);
buffer_size = (min + max) / 2;
}
snd_pcm_hw_params_set_buffer_time_near (pcm, hw_params, &buffer_size, NULL);
snd_pcm_hw_params_get_periods_min (hw_params, &min, NULL);
snd_pcm_hw_params_get_periods_max (hw_params, &max, NULL);
printf (" --> Period ranges: %d to %d blocks\n", min, max);
if (periods > max)
{
periods = max;
}
snd_pcm_hw_params_set_periods_near (pcm, hw_params, &periods, NULL);
if ((err = snd_pcm_hw_params (pcm, hw_params)) < 0)
{
printf (" Hardware parameter set failed.\n");
goto close_fail;
}
snd_pcm_sw_params_alloca (&sw_params);
snd_pcm_sw_params_current (pcm, sw_params);
@ -115,7 +144,10 @@ S9xAlsaSoundDriver::open_device (void)
output_buffer_size = snd_pcm_frames_to_bytes (pcm, alsa_buffer_size);
if (err < 0)
{
printf (" Software parameter set failed.\n");
goto close_fail;
}
printf ("OK\n");