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/*
* QEMU DirectSound audio driver header
*
* Copyright (c) 2005 Vassili Karpov (malc)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifdef DSBTYPE_IN
#define NAME "capture buffer"
#define NAME2 "DirectSoundCapture"
#define TYPE in
#define IFACE IDirectSoundCaptureBuffer
#define BUFPTR LPDIRECTSOUNDCAPTUREBUFFER
#define FIELD dsound_capture_buffer
#define FIELD2 dsound_capture
#else
#define NAME "playback buffer"
#define NAME2 "DirectSound"
#define TYPE out
#define IFACE IDirectSoundBuffer
#define BUFPTR LPDIRECTSOUNDBUFFER
#define FIELD dsound_buffer
#define FIELD2 dsound
#endif
static int glue (dsound_unlock_, TYPE) (
BUFPTR buf,
LPVOID p1,
LPVOID p2,
DWORD blen1,
DWORD blen2
)
{
HRESULT hr;
hr = glue (IFACE, _Unlock) (buf, p1, blen1, p2, blen2);
if (FAILED (hr)) {
dsound_logerr (hr, "Could not unlock " NAME "\n");
return -1;
}
return 0;
}
static int glue (dsound_lock_, TYPE) (
BUFPTR buf,
struct audio_pcm_info *info,
DWORD pos,
DWORD len,
LPVOID *p1p,
LPVOID *p2p,
DWORD *blen1p,
DWORD *blen2p,
int entire
)
{
HRESULT hr;
int i;
LPVOID p1 = NULL, p2 = NULL;
DWORD blen1 = 0, blen2 = 0;
DWORD flag;
#ifdef DSBTYPE_IN
flag = entire ? DSCBLOCK_ENTIREBUFFER : 0;
#else
flag = entire ? DSBLOCK_ENTIREBUFFER : 0;
#endif
for (i = 0; i < conf.lock_retries; ++i) {
hr = glue (IFACE, _Lock) (
buf,
pos,
len,
&p1,
&blen1,
&p2,
&blen2,
flag
);
if (FAILED (hr)) {
#ifndef DSBTYPE_IN
if (hr == DSERR_BUFFERLOST) {
if (glue (dsound_restore_, TYPE) (buf)) {
dsound_logerr (hr, "Could not lock " NAME "\n");
goto fail;
}
continue;
}
#endif
dsound_logerr (hr, "Could not lock " NAME "\n");
goto fail;
}
break;
}
if (i == conf.lock_retries) {
dolog ("%d attempts to lock " NAME " failed\n", i);
goto fail;
}
if ((p1 && (blen1 & info->align)) || (p2 && (blen2 & info->align))) {
dolog ("DirectSound returned misaligned buffer %ld %ld\n",
blen1, blen2);
glue (dsound_unlock_, TYPE) (buf, p1, p2, blen1, blen2);
goto fail;
}
if (!p1 && blen1) {
dolog ("warning: !p1 && blen1=%ld\n", blen1);
blen1 = 0;
}
if (!p2 && blen2) {
dolog ("warning: !p2 && blen2=%ld\n", blen2);
blen2 = 0;
}
*p1p = p1;
*p2p = p2;
*blen1p = blen1;
*blen2p = blen2;
return 0;
fail:
*p1p = NULL - 1;
*p2p = NULL - 1;
*blen1p = -1;
*blen2p = -1;
return -1;
}
#ifdef DSBTYPE_IN
static void dsound_fini_in (HWVoiceIn *hw)
#else
static void dsound_fini_out (HWVoiceOut *hw)
#endif
{
HRESULT hr;
#ifdef DSBTYPE_IN
DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
#else
DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
#endif
if (ds->FIELD) {
hr = glue (IFACE, _Stop) (ds->FIELD);
if (FAILED (hr)) {
dsound_logerr (hr, "Could not stop " NAME "\n");
}
hr = glue (IFACE, _Release) (ds->FIELD);
if (FAILED (hr)) {
dsound_logerr (hr, "Could not release " NAME "\n");
}
ds->FIELD = NULL;
}
}
#ifdef DSBTYPE_IN
static int dsound_init_in (HWVoiceIn *hw, struct audsettings *as)
#else
static int dsound_init_out (HWVoiceOut *hw, struct audsettings *as)
#endif
{
int err;
HRESULT hr;
dsound *s = &glob_dsound;
WAVEFORMATEX wfx;
struct audsettings obt_as;
#ifdef DSBTYPE_IN
const char *typ = "ADC";
DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
DSCBUFFERDESC bd;
DSCBCAPS bc;
#else
const char *typ = "DAC";
DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
DSBUFFERDESC bd;
DSBCAPS bc;
#endif
if (!s->FIELD2) {
dolog ("Attempt to initialize voice without " NAME2 " object\n");
return -1;
}
err = waveformat_from_audio_settings (&wfx, as);
if (err) {
return -1;
}
memset (&bd, 0, sizeof (bd));
bd.dwSize = sizeof (bd);
bd.lpwfxFormat = &wfx;
#ifdef DSBTYPE_IN
bd.dwBufferBytes = conf.bufsize_in;
hr = IDirectSoundCapture_CreateCaptureBuffer (
s->dsound_capture,
&bd,
&ds->dsound_capture_buffer,
NULL
);
#else
bd.dwFlags = DSBCAPS_STICKYFOCUS | DSBCAPS_GETCURRENTPOSITION2;
bd.dwBufferBytes = conf.bufsize_out;
hr = IDirectSound_CreateSoundBuffer (
s->dsound,
&bd,
&ds->dsound_buffer,
NULL
);
#endif
if (FAILED (hr)) {
dsound_logerr2 (hr, typ, "Could not create " NAME "\n");
return -1;
}
hr = glue (IFACE, _GetFormat) (ds->FIELD, &wfx, sizeof (wfx), NULL);
if (FAILED (hr)) {
dsound_logerr2 (hr, typ, "Could not get " NAME " format\n");
goto fail0;
}
#ifdef DEBUG_DSOUND
dolog (NAME "\n");
print_wave_format (&wfx);
#endif
memset (&bc, 0, sizeof (bc));
bc.dwSize = sizeof (bc);
hr = glue (IFACE, _GetCaps) (ds->FIELD, &bc);
if (FAILED (hr)) {
dsound_logerr2 (hr, typ, "Could not get " NAME " format\n");
goto fail0;
}
err = waveformat_to_audio_settings (&wfx, &obt_as);
if (err) {
goto fail0;
}
ds->first_time = 1;
obt_as.endianness = 0;
audio_pcm_init_info (&hw->info, &obt_as);
if (bc.dwBufferBytes & hw->info.align) {
dolog (
"GetCaps returned misaligned buffer size %ld, alignment %d\n",
bc.dwBufferBytes, hw->info.align + 1
);
}
hw->samples = bc.dwBufferBytes >> hw->info.shift;
#ifdef DEBUG_DSOUND
dolog ("caps %ld, desc %ld\n",
bc.dwBufferBytes, bd.dwBufferBytes);
dolog ("bufsize %d, freq %d, chan %d, fmt %d\n",
hw->bufsize, settings.freq, settings.nchannels, settings.fmt);
#endif
return 0;
fail0:
glue (dsound_fini_, TYPE) (hw);
return -1;
}
#undef NAME
#undef NAME2
#undef TYPE
#undef IFACE
#undef BUFPTR
#undef FIELD
#undef FIELD2
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