diff options
Diffstat (limited to 'audio/dsound_template.h')
| -rw-r--r-- | audio/dsound_template.h | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/audio/dsound_template.h b/audio/dsound_template.h new file mode 100644 index 0000000..0896b04 --- /dev/null +++ b/audio/dsound_template.h @@ -0,0 +1,282 @@ +/* + * 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 TYPE in +#define IFACE IDirectSoundCaptureBuffer +#define BUFPTR LPDIRECTSOUNDCAPTUREBUFFER +#define FIELD dsound_capture_buffer +#else +#define NAME "playback buffer" +#define TYPE out +#define IFACE IDirectSoundBuffer +#define BUFPTR LPDIRECTSOUNDBUFFER +#define FIELD dsound_buffer +#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, audsettings_t *as) +#else +static int dsound_init_out (HWVoiceOut *hw, audsettings_t *as) +#endif +{ + int err; + HRESULT hr; + dsound *s = &glob_dsound; + WAVEFORMATEX wfx; + audsettings_t 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 + + 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 TYPE +#undef IFACE +#undef BUFPTR +#undef FIELD |