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Don't fail when opening a device in direct sound mode. Rather, try 

alternate formats first before failing.
This commit is contained in:
Robert Reif 2005-03-23 11:58:05 +00:00 committed by Alexandre Julliard
parent afa94e3a98
commit b19aaf1e46
1 changed files with 86 additions and 5 deletions
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91
dlls/winmm/winealsa/audio.c
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@ -307,6 +307,22 @@ static const char * getMessage(UINT msg)
return unknown;
}
static const char * getFormat(WORD wFormatTag)
{
static char unknown[32];
#define FMT_TO_STR(x) case x: return #x
switch(wFormatTag) {
FMT_TO_STR(WAVE_FORMAT_PCM);
FMT_TO_STR(WAVE_FORMAT_EXTENSIBLE);
FMT_TO_STR(WAVE_FORMAT_MULAW);
FMT_TO_STR(WAVE_FORMAT_ALAW);
FMT_TO_STR(WAVE_FORMAT_ADPCM);
}
#undef FMT_TO_STR
sprintf(unknown, "UNKNOWN(0x%04x)", wFormatTag);
return unknown;
}
static DWORD bytes_to_mmtime(LPMMTIME lpTime, DWORD position,
WAVEFORMATPCMEX* format)
{
@ -1793,6 +1809,12 @@ static DWORD wodOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
memcpy(&wwo->waveDesc, lpDesc, sizeof(WAVEOPENDESC));
copy_format(lpDesc->lpFormat, &wwo->format);
TRACE("Requested this format: %ldx%dx%d %s\n",
wwo->format.Format.nSamplesPerSec,
wwo->format.Format.wBitsPerSample,
wwo->format.Format.nChannels,
getFormat(wwo->format.Format.wFormatTag));
if (wwo->format.Format.wBitsPerSample == 0) {
WARN("Resetting zeroed wBitsPerSample\n");
wwo->format.Format.wBitsPerSample = 8 *
@ -1824,7 +1846,22 @@ static DWORD wodOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
else
wwo->write = snd_pcm_mmap_writei;
EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwo->format.Format.nChannels), MMSYSERR_INVALPARAM, "unable to set required channels");
if ((err = snd_pcm_hw_params_set_channels(pcm, hw_params, wwo->format.Format.nChannels)) < 0) {
WARN("unable to set required channels: %d\n", wwo->format.Format.nChannels);
if (dwFlags & WAVE_DIRECTSOUND) {
if (wwo->format.Format.nChannels > 2)
wwo->format.Format.nChannels = 2;
else if (wwo->format.Format.nChannels == 2)
wwo->format.Format.nChannels = 1;
else if (wwo->format.Format.nChannels == 1)
wwo->format.Format.nChannels = 2;
/* recalculate block align and bytes per second */
wwo->format.Format.nBlockAlign = (wwo->format.Format.wBitsPerSample * wwo->format.Format.nChannels) / 8;
wwo->format.Format.nAvgBytesPerSec = wwo->format.Format.nSamplesPerSec * wwo->format.Format.nBlockAlign;
WARN("changed number of channels from %d to %d\n", lpDesc->lpFormat->nChannels, wwo->format.Format.nChannels);
}
EXIT_ON_ERROR( snd_pcm_hw_params_set_channels(pcm, hw_params, wwo->format.Format.nChannels ), MMSYSERR_INVALPARAM, "unable to set required channels" );
}
if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
@ -1854,7 +1891,27 @@ static DWORD wodOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
return WAVERR_BADFORMAT;
}
EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), MMSYSERR_INVALPARAM, "unable to set required format");
if ((err = snd_pcm_hw_params_set_format(pcm, hw_params, format)) < 0) {
WARN("unable to set required format: %s\n", snd_pcm_format_name(format));
if (dwFlags & WAVE_DIRECTSOUND) {
if ((wwo->format.Format.wFormatTag == WAVE_FORMAT_PCM) ||
((wwo->format.Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE) &&
IsEqualGUID(&wwo->format.SubFormat, & KSDATAFORMAT_SUBTYPE_PCM))) {
if (wwo->format.Format.wBitsPerSample != 16) {
wwo->format.Format.wBitsPerSample = 16;
format = SND_PCM_FORMAT_S16_LE;
} else {
wwo->format.Format.wBitsPerSample = 8;
format = SND_PCM_FORMAT_U8;
}
/* recalculate block align and bytes per second */
wwo->format.Format.nBlockAlign = (wwo->format.Format.wBitsPerSample * wwo->format.Format.nChannels) / 8;
wwo->format.Format.nAvgBytesPerSec = wwo->format.Format.nSamplesPerSec * wwo->format.Format.nBlockAlign;
WARN("changed bits per sample from %d to %d\n", lpDesc->lpFormat->wBitsPerSample, wwo->format.Format.wBitsPerSample);
}
}
EXIT_ON_ERROR( snd_pcm_hw_params_set_format(pcm, hw_params, format), MMSYSERR_INVALPARAM, "unable to set required format" );
}
rate = wwo->format.Format.nSamplesPerSec;
dir=0;
@ -1865,10 +1922,34 @@ static DWORD wodOpen(WORD wDevID, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
return WAVERR_BADFORMAT;
}
if (rate != wwo->format.Format.nSamplesPerSec) {
ERR("Rate doesn't match (requested %ld Hz, got %d Hz)\n", wwo->format.Format.nSamplesPerSec, rate);
snd_pcm_close(pcm);
return WAVERR_BADFORMAT;
if (dwFlags & WAVE_DIRECTSOUND) {
WARN("changed sample rate from %ld Hz to %d Hz\n", wwo->format.Format.nSamplesPerSec, rate);
wwo->format.Format.nSamplesPerSec = rate;
/* recalculate bytes per second */
wwo->format.Format.nAvgBytesPerSec = wwo->format.Format.nSamplesPerSec * wwo->format.Format.nBlockAlign;
} else {
ERR("Rate doesn't match (requested %ld Hz, got %d Hz)\n", wwo->format.Format.nSamplesPerSec, rate);
snd_pcm_close(pcm);
return WAVERR_BADFORMAT;
}
}
/* give the new format back to direct sound */
if (dwFlags & WAVE_DIRECTSOUND) {
lpDesc->lpFormat->wFormatTag = wwo->format.Format.wFormatTag;
lpDesc->lpFormat->nChannels = wwo->format.Format.nChannels;
lpDesc->lpFormat->nSamplesPerSec = wwo->format.Format.nSamplesPerSec;
lpDesc->lpFormat->wBitsPerSample = wwo->format.Format.wBitsPerSample;
lpDesc->lpFormat->nBlockAlign = wwo->format.Format.nBlockAlign;
lpDesc->lpFormat->nAvgBytesPerSec = wwo->format.Format.nAvgBytesPerSec;
}
TRACE("Got this format: %ldx%dx%d %s\n",
wwo->format.Format.nSamplesPerSec,
wwo->format.Format.wBitsPerSample,
wwo->format.Format.nChannels,
getFormat(wwo->format.Format.wFormatTag));
dir=0;
EXIT_ON_ERROR( snd_pcm_hw_params_set_buffer_time_near(pcm, hw_params, &buffer_time, &dir), MMSYSERR_INVALPARAM, "unable to set buffer time");
dir=0;