/* * QEMU DirectSound audio driver * * 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. */ /* * SEAL 1.07 by Carlos 'pel' Hasan was used as documentation */ /* * Patched audio jack hot-plug event handling * * Contributors: * - S-Core Co., Ltd * * Contact: * Byeongki Shin */ #include "qemu/osdep.h" #include "qemu-common.h" #include "audio.h" #include "qemu/thread.h" #define AUDIO_CAP "dsound" #define COBJMACROS #include "audio_int.h" #include #include #include #include #include #include #include "audio_win_int.h" /* #define DEBUG_DSOUND */ #ifdef DEBUG_DSOUND #define dolog2 dolog #else #define dolog2(...) #endif /* Assume that each plugging event cannot occur at the same time */ enum dsound_plugging_event { OUT_UNPLUGGED, OUT_PLUGGED, IN_UNPLUGGED, IN_PLUGGED, NOT_SUPPORTED }; typedef struct { int bufsize_in; int bufsize_out; int latency_millis; } DSoundConf; typedef struct { HWVoiceOut hw; LPDIRECTSOUNDBUFFER dsound_buffer; DWORD old_pos; int first_time; struct dsound *s; #ifdef DEBUG_DSOUND DWORD old_ppos; DWORD played; DWORD mixed; #endif } DSoundVoiceOut; typedef struct { HWVoiceIn hw; int first_time; LPDIRECTSOUNDCAPTUREBUFFER dsound_capture_buffer; struct dsound *s; } DSoundVoiceIn; typedef struct dsound { LPDIRECTSOUND dsound; LPDIRECTSOUNDCAPTURE dsound_capture; DSoundVoiceIn *dsi; DSoundVoiceOut *dso; struct audsettings settings; DSoundConf conf; IMMDeviceEnumerator *mmdev_enumerator; IMMNotificationClient noti_client; enum dsound_plugging_event event; bool out_init_success; bool in_init_success; QemuThread th; QemuMutex th_mutex; QemuMutex init_mutex; QemuCond th_cond; QemuCond init_cond; bool th_initialized; bool th_exit; } dsound; static void dsound_audio_fini (void *opaque); static void dsound_log_hresult (HRESULT hr) { const char *str = "BUG"; switch (hr) { case DS_OK: str = "The method succeeded"; break; #ifdef DS_NO_VIRTUALIZATION case DS_NO_VIRTUALIZATION: str = "The buffer was created, but another 3D algorithm was substituted"; break; #endif #ifdef DS_INCOMPLETE case DS_INCOMPLETE: str = "The method succeeded, but not all the optional effects were obtained"; break; #endif #ifdef DSERR_ACCESSDENIED case DSERR_ACCESSDENIED: str = "The request failed because access was denied"; break; #endif #ifdef DSERR_ALLOCATED case DSERR_ALLOCATED: str = "The request failed because resources, such as a priority level, were already in use by another caller"; break; #endif #ifdef DSERR_ALREADYINITIALIZED case DSERR_ALREADYINITIALIZED: str = "The object is already initialized"; break; #endif #ifdef DSERR_BADFORMAT case DSERR_BADFORMAT: str = "The specified wave format is not supported"; break; #endif #ifdef DSERR_BADSENDBUFFERGUID case DSERR_BADSENDBUFFERGUID: str = "The GUID specified in an audiopath file does not match a valid mix-in buffer"; break; #endif #ifdef DSERR_BUFFERLOST case DSERR_BUFFERLOST: str = "The buffer memory has been lost and must be restored"; break; #endif #ifdef DSERR_BUFFERTOOSMALL case DSERR_BUFFERTOOSMALL: str = "The buffer size is not great enough to enable effects processing"; break; #endif #ifdef DSERR_CONTROLUNAVAIL case DSERR_CONTROLUNAVAIL: str = "The buffer control (volume, pan, and so on) requested by the caller is not available. Controls must be specified when the buffer is created, using the dwFlags member of DSBUFFERDESC"; break; #endif #ifdef DSERR_DS8_REQUIRED case DSERR_DS8_REQUIRED: str = "A DirectSound object of class CLSID_DirectSound8 or later is required for the requested functionality. For more information, see IDirectSound8 Interface"; break; #endif #ifdef DSERR_FXUNAVAILABLE case DSERR_FXUNAVAILABLE: str = "The effects requested could not be found on the system, or they are in the wrong order or in the wrong location; for example, an effect expected in hardware was found in software"; break; #endif #ifdef DSERR_GENERIC case DSERR_GENERIC : str = "An undetermined error occurred inside the DirectSound subsystem"; break; #endif #ifdef DSERR_INVALIDCALL case DSERR_INVALIDCALL: str = "This function is not valid for the current state of this object"; break; #endif #ifdef DSERR_INVALIDPARAM case DSERR_INVALIDPARAM: str = "An invalid parameter was passed to the returning function"; break; #endif #ifdef DSERR_NOAGGREGATION case DSERR_NOAGGREGATION: str = "The object does not support aggregation"; break; #endif #ifdef DSERR_NODRIVER case DSERR_NODRIVER: str = "No sound driver is available for use, or the given GUID is not a valid DirectSound device ID"; break; #endif #ifdef DSERR_NOINTERFACE case DSERR_NOINTERFACE: str = "The requested COM interface is not available"; break; #endif #ifdef DSERR_OBJECTNOTFOUND case DSERR_OBJECTNOTFOUND: str = "The requested object was not found"; break; #endif #ifdef DSERR_OTHERAPPHASPRIO case DSERR_OTHERAPPHASPRIO: str = "Another application has a higher priority level, preventing this call from succeeding"; break; #endif #ifdef DSERR_OUTOFMEMORY case DSERR_OUTOFMEMORY: str = "The DirectSound subsystem could not allocate sufficient memory to complete the caller's request"; break; #endif #ifdef DSERR_PRIOLEVELNEEDED case DSERR_PRIOLEVELNEEDED: str = "A cooperative level of DSSCL_PRIORITY or higher is required"; break; #endif #ifdef DSERR_SENDLOOP case DSERR_SENDLOOP: str = "A circular loop of send effects was detected"; break; #endif #ifdef DSERR_UNINITIALIZED case DSERR_UNINITIALIZED: str = "The Initialize method has not been called or has not been called successfully before other methods were called"; break; #endif #ifdef DSERR_UNSUPPORTED case DSERR_UNSUPPORTED: str = "The function called is not supported at this time"; break; #endif default: AUD_log (AUDIO_CAP, "Reason: Unknown (HRESULT %#lx)\n", hr); return; } AUD_log (AUDIO_CAP, "Reason: %s\n", str); } static void GCC_FMT_ATTR (2, 3) dsound_logerr ( HRESULT hr, const char *fmt, ... ) { va_list ap; va_start (ap, fmt); AUD_vlog (AUDIO_CAP, fmt, ap); va_end (ap); dsound_log_hresult (hr); } static void GCC_FMT_ATTR (3, 4) dsound_logerr2 ( HRESULT hr, const char *typ, const char *fmt, ... ) { va_list ap; AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ); va_start (ap, fmt); AUD_vlog (AUDIO_CAP, fmt, ap); va_end (ap); dsound_log_hresult (hr); } static DWORD millis_to_bytes (struct audio_pcm_info *info, DWORD millis) { return (millis * info->bytes_per_second) / 1000; } #ifdef DEBUG_DSOUND static void print_wave_format (WAVEFORMATEX *wfx) { dolog ("tag = %d\n", wfx->wFormatTag); dolog ("nChannels = %d\n", wfx->nChannels); dolog ("nSamplesPerSec = %ld\n", wfx->nSamplesPerSec); dolog ("nAvgBytesPerSec = %ld\n", wfx->nAvgBytesPerSec); dolog ("nBlockAlign = %d\n", wfx->nBlockAlign); dolog ("wBitsPerSample = %d\n", wfx->wBitsPerSample); dolog ("cbSize = %d\n", wfx->cbSize); } #endif static int dsound_restore_out (LPDIRECTSOUNDBUFFER dsb, dsound *s) { HRESULT hr; hr = IDirectSoundBuffer_Restore (dsb); if (hr != DS_OK) { dsound_logerr (hr, "Could not restore playback buffer\n"); return -1; } return 0; } #include "dsound_template.h" #define DSBTYPE_IN #include "dsound_template.h" #undef DSBTYPE_IN static int dsound_get_status_out (LPDIRECTSOUNDBUFFER dsb, DWORD *statusp, dsound *s) { HRESULT hr; hr = IDirectSoundBuffer_GetStatus (dsb, statusp); if (FAILED (hr)) { dsound_logerr (hr, "Could not get playback buffer status\n"); return -1; } /* Because ctl_out of pcm_ops changed to be checked its success, * this function should be able to return success * in the DSERR_BUFFERLOST case. */ if (*statusp & DSERR_BUFFERLOST) { return dsound_restore_out(dsb, s); } return 0; } static int dsound_get_status_in (LPDIRECTSOUNDCAPTUREBUFFER dscb, DWORD *statusp) { HRESULT hr; hr = IDirectSoundCaptureBuffer_GetStatus (dscb, statusp); if (FAILED (hr)) { dsound_logerr (hr, "Could not get capture buffer status\n"); return -1; } return 0; } static void dsound_write_sample (HWVoiceOut *hw, uint8_t *dst, int dst_len) { int src_len1 = dst_len; int src_len2 = 0; int pos = hw->rpos + dst_len; struct st_sample *src1 = hw->mix_buf + hw->rpos; struct st_sample *src2 = NULL; if (pos > hw->samples) { src_len1 = hw->samples - hw->rpos; src2 = hw->mix_buf; src_len2 = dst_len - src_len1; pos = src_len2; } if (src_len1) { hw->clip (dst, src1, src_len1); } if (src_len2) { dst = advance (dst, src_len1 << hw->info.shift); hw->clip (dst, src2, src_len2); } hw->rpos = pos % hw->samples; } static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb, dsound *s) { int err; LPVOID p1, p2; DWORD blen1, blen2, len1, len2; err = dsound_lock_out ( dsb, &hw->info, 0, hw->samples << hw->info.shift, &p1, &p2, &blen1, &blen2, 1, s ); if (err) { return; } len1 = blen1 >> hw->info.shift; len2 = blen2 >> hw->info.shift; #ifdef DEBUG_DSOUND dolog ("clear %p,%ld,%ld %p,%ld,%ld\n", p1, blen1, len1, p2, blen2, len2); #endif if (p1 && len1) { audio_pcm_info_clear_buf (&hw->info, p1, len1); } if (p2 && len2) { audio_pcm_info_clear_buf (&hw->info, p2, len2); } dsound_unlock_out (dsb, p1, p2, blen1, blen2); } static int dsound_open (dsound *s) { HRESULT hr; HWND hwnd; hwnd = GetForegroundWindow (); hr = IDirectSound_SetCooperativeLevel ( s->dsound, hwnd, DSSCL_PRIORITY ); if (FAILED (hr)) { dsound_logerr (hr, "Could not set cooperative level for window %p\n", hwnd); return -1; } return 0; } static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...) { HRESULT hr; DWORD status; DSoundVoiceOut *ds = (DSoundVoiceOut *) hw; LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer; dsound *s = ds->s; if (!dsb) { dolog2 ("Attempt to control voice without a buffer\n"); return -1; } dolog2 ("(%s) ds(%p), ds->dsound_buffer(%p)\n", __func__, ds, &ds->dsound_buffer); switch (cmd) { case VOICE_ENABLE: if (dsound_get_status_out (dsb, &status, s)) { return -1; } if (status & DSBSTATUS_PLAYING) { dolog ("warning: Voice is already playing\n"); return 0; } dsound_clear_sample (hw, dsb, s); hr = IDirectSoundBuffer_Play (dsb, 0, 0, DSBPLAY_LOOPING); if (FAILED (hr)) { dsound_logerr (hr, "Could not start playing buffer\n"); return -1; } break; case VOICE_DISABLE: if (dsound_get_status_out (dsb, &status, s)) { return -1; } if (status & DSBSTATUS_PLAYING) { hr = IDirectSoundBuffer_Stop (dsb); if (FAILED (hr)) { dsound_logerr (hr, "Could not stop playing buffer\n"); return -1; } } else { dolog ("warning: Voice is not playing\n"); } break; } return 0; } static int dsound_write (SWVoiceOut *sw, void *buf, int len) { return audio_pcm_sw_write (sw, buf, len); } static int dsound_run_out (HWVoiceOut *hw, int live) { int err; HRESULT hr; DSoundVoiceOut *ds = (DSoundVoiceOut *) hw; LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer; int len, hwshift; DWORD blen1, blen2; DWORD len1, len2; DWORD decr; DWORD wpos, ppos, old_pos; LPVOID p1, p2; int bufsize; dsound *s = ds->s; DSoundConf *conf = &s->conf; if (!dsb) { dolog2 ("Attempt to run empty with playback buffer\n"); return 0; } hwshift = hw->info.shift; bufsize = hw->samples << hwshift; hr = IDirectSoundBuffer_GetCurrentPosition ( dsb, &ppos, ds->first_time ? &wpos : NULL ); if (FAILED (hr)) { dsound_logerr (hr, "Could not get playback buffer position\n"); return 0; } len = live << hwshift; if (ds->first_time) { if (conf->latency_millis) { DWORD cur_blat; cur_blat = audio_ring_dist (wpos, ppos, bufsize); ds->first_time = 0; old_pos = wpos; old_pos += millis_to_bytes (&hw->info, conf->latency_millis) - cur_blat; old_pos %= bufsize; old_pos &= ~hw->info.align; } else { old_pos = wpos; } #ifdef DEBUG_DSOUND ds->played = 0; ds->mixed = 0; #endif } else { if (ds->old_pos == ppos) { #ifdef DEBUG_DSOUND dolog ("old_pos == ppos\n"); #endif return 0; } #ifdef DEBUG_DSOUND ds->played += audio_ring_dist (ds->old_pos, ppos, bufsize); #endif old_pos = ds->old_pos; } if ((old_pos < ppos) && ((old_pos + len) > ppos)) { len = ppos - old_pos; } else { if ((old_pos > ppos) && ((old_pos + len) > (ppos + bufsize))) { len = bufsize - old_pos + ppos; } } if (audio_bug (AUDIO_FUNC, len < 0 || len > bufsize)) { dolog ("len=%d bufsize=%d old_pos=%ld ppos=%ld\n", len, bufsize, old_pos, ppos); return 0; } len &= ~hw->info.align; if (!len) { return 0; } #ifdef DEBUG_DSOUND ds->old_ppos = ppos; #endif err = dsound_lock_out ( dsb, &hw->info, old_pos, len, &p1, &p2, &blen1, &blen2, 0, s ); if (err) { return 0; } len1 = blen1 >> hwshift; len2 = blen2 >> hwshift; decr = len1 + len2; if (p1 && len1) { dsound_write_sample (hw, p1, len1); } if (p2 && len2) { dsound_write_sample (hw, p2, len2); } dsound_unlock_out (dsb, p1, p2, blen1, blen2); ds->old_pos = (old_pos + (decr << hwshift)) % bufsize; #ifdef DEBUG_DSOUND ds->mixed += decr << hwshift; dolog ("played %lu mixed %lu diff %ld sec %f\n", ds->played, ds->mixed, ds->mixed - ds->played, abs (ds->mixed - ds->played) / (double) hw->info.bytes_per_second); #endif return decr; } static int dsound_ctl_in (HWVoiceIn *hw, int cmd, ...) { HRESULT hr; DWORD status; DSoundVoiceIn *ds = (DSoundVoiceIn *) hw; LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer; if (!dscb) { dolog2 ("Attempt to control capture voice without a buffer\n"); return -1; } switch (cmd) { case VOICE_ENABLE: if (dsound_get_status_in (dscb, &status)) { return -1; } if (status & DSCBSTATUS_CAPTURING) { dolog ("warning: Voice is already capturing\n"); return 0; } /* clear ?? */ hr = IDirectSoundCaptureBuffer_Start (dscb, DSCBSTART_LOOPING); if (FAILED (hr)) { dsound_logerr (hr, "Could not start capturing\n"); return -1; } break; case VOICE_DISABLE: if (dsound_get_status_in (dscb, &status)) { return -1; } if (status & DSCBSTATUS_CAPTURING) { hr = IDirectSoundCaptureBuffer_Stop (dscb); if (FAILED (hr)) { dsound_logerr (hr, "Could not stop capturing\n"); return -1; } } else { dolog ("warning: Voice is not capturing\n"); } break; } return 0; } static int dsound_read (SWVoiceIn *sw, void *buf, int len) { return audio_pcm_sw_read (sw, buf, len); } static int dsound_run_in (HWVoiceIn *hw) { int err; HRESULT hr; DSoundVoiceIn *ds = (DSoundVoiceIn *) hw; LPDIRECTSOUNDCAPTUREBUFFER dscb = ds->dsound_capture_buffer; int live, len, dead; DWORD blen1, blen2; DWORD len1, len2; DWORD decr; DWORD cpos, rpos; LPVOID p1, p2; int hwshift; dsound *s = ds->s; if (!dscb) { dolog2 ("Attempt to run without capture buffer\n"); return 0; } hwshift = hw->info.shift; live = audio_pcm_hw_get_live_in (hw); dead = hw->samples - live; if (!dead) { return 0; } hr = IDirectSoundCaptureBuffer_GetCurrentPosition ( dscb, &cpos, ds->first_time ? &rpos : NULL ); if (FAILED (hr)) { dsound_logerr (hr, "Could not get capture buffer position\n"); return 0; } if (ds->first_time) { ds->first_time = 0; if (rpos & hw->info.align) { ldebug ("warning: Misaligned capture read position %ld(%d)\n", rpos, hw->info.align); } hw->wpos = rpos >> hwshift; } if (cpos & hw->info.align) { ldebug ("warning: Misaligned capture position %ld(%d)\n", cpos, hw->info.align); } cpos >>= hwshift; len = audio_ring_dist (cpos, hw->wpos, hw->samples); if (!len) { return 0; } len = audio_MIN (len, dead); err = dsound_lock_in ( dscb, &hw->info, hw->wpos << hwshift, len << hwshift, &p1, &p2, &blen1, &blen2, 0, s ); if (err) { return 0; } len1 = blen1 >> hwshift; len2 = blen2 >> hwshift; decr = len1 + len2; if (p1 && len1) { hw->conv (hw->conv_buf + hw->wpos, p1, len1); } if (p2 && len2) { hw->conv (hw->conv_buf, p2, len2); } dsound_unlock_in (dscb, p1, p2, blen1, blen2); hw->wpos = (hw->wpos + decr) % hw->samples; return decr; } static enum dsound_plugging_event dsound_determine_event(DWORD state, EDataFlow flow) { enum dsound_plugging_event event; /* XXX: is it possible for speaker and mic to be plugged at the same time? */ if ((state != DEVICE_STATE_ACTIVE && state != DEVICE_STATE_UNPLUGGED) || (flow != eRender && flow != eCapture)) { dolog("(%s) not supported event. state=%#lx, flow=%d\n", __func__, state, flow); return NOT_SUPPORTED; } if (state == DEVICE_STATE_ACTIVE) { if (flow == eRender) { event = OUT_PLUGGED; } else if (flow == eCapture) { event = IN_PLUGGED; } } else { if (flow == eRender) { event = OUT_UNPLUGGED; } else if (flow == eCapture) { event = IN_UNPLUGGED; } } return event; } static int dsound_audio_out_init(dsound *s) { HRESULT hr; int err; dolog2("(%s) Starting. s->dsound(%p)\n", __func__, s->dsound); hr = IDirectSound_Initialize (s->dsound, NULL); if (hr != DSERR_ALREADYINITIALIZED && FAILED (hr)) { dsound_logerr (hr, "Could not initialize DirectSound\n"); return -1; } err = dsound_open (s); if (err) { dsound_audio_fini (s); return -1; } dolog2("(%s) success\n", __func__); return 0; } static int dsound_audio_in_init(dsound *s) { HRESULT hr; dolog2("(%s) Starting. s->dsound_capture(%p)\n", __func__, s->dsound_capture); hr = IDirectSoundCapture_Initialize (s->dsound_capture, NULL); if (hr != DSERR_ALREADYINITIALIZED && FAILED (hr)) { dsound_logerr (hr, "Could not initialize DirectSoundCapture\n"); return -1; } dolog("(%s) success\n", __func__); return 0; } /* Implementation of IMMNotificationClient callbacks */ static HRESULT STDMETHODCALLTYPE dsound_QueryInterface(IMMNotificationClient *This, REFIID riid, void **ppvObject) { dolog2("(%s)\n", __func__); return E_NOTIMPL; } static ULONG STDMETHODCALLTYPE dsound_AddRef(IMMNotificationClient *This) { dolog2("(%s)\n", __func__); return E_NOTIMPL; } static ULONG STDMETHODCALLTYPE dsound_Release(IMMNotificationClient *This) { dolog2("(%s)\n", __func__); return E_NOTIMPL; } static HRESULT STDMETHODCALLTYPE dsound_OnDeviceStateChanged(IMMNotificationClient* This, LPCWSTR pwstrDeviceId, DWORD dwNewState) { dsound *s = CONTAINING_RECORD(This, dsound, noti_client); HRESULT hr; IMMDevice *mmdev; IMMEndpoint *ep; EDataFlow flow; /* To decide whether IN or OUT, get IMMEndpoint interface */ hr = IMMDeviceEnumerator_GetDevice(s->mmdev_enumerator, pwstrDeviceId, &mmdev); if (FAILED (hr)) { dolog("(%s) Could not get mmdevice\n", __func__); return E_FAIL; } dolog2("(%s) mmdev(%p)\n", __func__, mmdev); hr = IMMDevice_QueryInterface(mmdev, &IID_IMMEndpoint, (void **)&ep); if (FAILED (hr)) { dolog("(%s) Could not get enpoint\n", __func__); return E_FAIL; } hr = IMMEndpoint_GetDataFlow(ep, &flow); if (FAILED (hr)) { dolog("(%s) Could not get dataflow\n", __func__); return E_FAIL; } dolog2("(%s) ep(%p), flow=%d\n", __func__, ep, flow); qemu_mutex_lock(&s->th_mutex); s->event = dsound_determine_event(dwNewState, flow); if (s->event != NOT_SUPPORTED) { qemu_cond_signal(&s->th_cond); } qemu_mutex_unlock(&s->th_mutex); return S_OK; } static HRESULT STDMETHODCALLTYPE dsound_OnDeviceAdded(IMMNotificationClient* This, LPCWSTR pwstrDeviceId) { dolog2("(%s)\n", __func__); return E_NOTIMPL; } static HRESULT STDMETHODCALLTYPE dsound_OnDeviceRemoved(IMMNotificationClient* This, LPCWSTR pwstrDeviceId) { dolog2("(%s)\n", __func__); return E_NOTIMPL; } static HRESULT STDMETHODCALLTYPE dsound_OnDefaultDeviceChanged(IMMNotificationClient* This, EDataFlow flow, ERole role, LPCWSTR pwstrDeviceId) { dolog2("(%s)\n", __func__); return E_NOTIMPL; } static HRESULT STDMETHODCALLTYPE dsound_OnPropertyValueChanged(IMMNotificationClient* This, LPCWSTR pwstrDeviceId, const PROPERTYKEY key) { dolog2("(%s)\n", __func__); return E_NOTIMPL; } static IMMNotificationClientVtbl dsound_dsound_vtbl = { dsound_QueryInterface, dsound_AddRef, dsound_Release, dsound_OnDeviceStateChanged, dsound_OnDeviceAdded, dsound_OnDeviceRemoved, dsound_OnDefaultDeviceChanged, dsound_OnPropertyValueChanged }; static DSoundConf glob_conf = { .bufsize_in = 16384, .bufsize_out = 16384, .latency_millis = 10 }; static void dsound_audio_fini (void *opaque) { HRESULT hr; dsound *s = opaque; qemu_mutex_lock(&s->th_mutex); s->th_exit = true; qemu_cond_signal(&s->th_cond); qemu_mutex_unlock(&s->th_mutex); qemu_thread_join(&s->th); qemu_cond_destroy(&s->th_cond); qemu_cond_destroy(&s->init_cond); qemu_mutex_destroy(&s->th_mutex); qemu_mutex_destroy(&s->init_mutex); if (!s->dsound) { g_free(s); return; } hr = IDirectSound_Release (s->dsound); if (FAILED (hr)) { dsound_logerr (hr, "Could not release DirectSound\n"); } s->dsound = NULL; if (!s->dsound_capture) { g_free(s); return; } hr = IDirectSoundCapture_Release (s->dsound_capture); if (FAILED (hr)) { dsound_logerr (hr, "Could not release DirectSoundCapture\n"); } s->dsound_capture = NULL; g_free(s); } /* Because a trial initializing in noti-handler makes some deadlock, * the initialization of DirectSound with COM * should be executed by one thread. */ static void *dsound_initialization_thread(void *opaque) { HRESULT hr; dsound *s = (dsound *)opaque; HWVoiceOut *hwo; HWVoiceIn *hwi; dolog2("(%s) Starting. dsound(%p)\n", __func__, s); hr = CoInitialize (NULL); if (FAILED (hr)) { dsound_logerr (hr, "Could not initialize COM\n"); goto CoFailed; } dolog2("(%s) CoInitialize succeeded\n", __func__); /* For Playback */ hr = CoCreateInstance ( &CLSID_DirectSound, NULL, CLSCTX_ALL, &IID_IDirectSound, (void **) &s->dsound ); if (FAILED (hr)) { dsound_logerr (hr, "Could not create DirectSound instance\n"); goto CoFailed; } dolog2("(%s) CoCreateInstance succeeded. s->dsound(%p)\n", __func__, s->dsound); /* try once at init time */ if (dsound_audio_out_init(s) < 0) { dolog2("(%s) dsound_audio_out_init failed.\n", __func__); s->out_init_success = false; } else { dolog2("(%s) dsound_audio_out_init success.\n", __func__); s->out_init_success = true; } /* For Capture */ hr = CoCreateInstance ( &CLSID_DirectSoundCapture, NULL, CLSCTX_ALL, &IID_IDirectSoundCapture, (void **) &s->dsound_capture ); if (FAILED (hr)) { dsound_logerr (hr, "Could not create DirectSoundCapture instance\n"); goto CoFailed; } /* try once at init time */ if (dsound_audio_in_init(s) < 0) { dolog2("(%s) dsound_audio_in_init failed.\n", __func__); s->in_init_success = false; } else { dolog2("(%s) dsound_audio_in_init success.\n", __func__); s->in_init_success = true; } CoFailed: qemu_mutex_lock(&s->init_mutex); s->th_initialized = true; qemu_cond_signal(&s->init_cond); qemu_mutex_unlock(&s->init_mutex); if (FAILED (hr)) { dolog("(%s) terminating.\n", __func__); return NULL; } /* event handling loop */ qemu_mutex_lock(&s->th_mutex); while (1) { qemu_cond_wait(&s->th_cond, &s->th_mutex); if (s->th_exit) { break; } switch (s->event) { case OUT_UNPLUGGED: hwo = (HWVoiceOut *)s->dso; assert(hwo != NULL); assert(s->dsound != NULL); dsound_fini_out(hwo); s->out_init_success = false; dolog("(%s) handled OUT_UNPLUGGED.\n", __func__); break; case OUT_PLUGGED: hwo = (HWVoiceOut *)s->dso; assert(hwo != NULL); if (dsound_audio_out_init(s) < 0) { dolog("(%s) dsound_audio_out_init failed.\n", __func__); s->out_init_success = false; break; } s->out_init_success = true; /* After audio system init finished, * pcm_ops.init_out is not called any more. * So, we should update backend data here. */ if (dsound_init_out(hwo, &s->settings, s) < 0 ) { dolog2("(%s) dsound_init_out failed\n", __func__); } else { dolog2("(%s) dsound_init_out succeeded\n", __func__); } dolog("(%s) handled OUT_PLUGGED.\n", __func__); break; case IN_UNPLUGGED: hwi = (HWVoiceIn *)s->dsi; assert(hwi != NULL); assert(s->dsound_capture != NULL); dsound_fini_in(hwi); s->in_init_success = false; dolog("(%s) handled IN_UNPLUGGED\n", __func__); break; case IN_PLUGGED: hwi = (HWVoiceIn *)s->dsi; assert(hwi != NULL); if (dsound_audio_in_init(s) < 0) { dolog("(%s) dsound_audio_in_init failed.\n", __func__); s->in_init_success = false; break; } s->in_init_success = true; /* Since, IN has same reason to out case */ if (dsound_init_in(hwi, &s->settings, s) < 0 ) { dolog2("(%s) dsound_init_in failed\n", __func__); } else { dolog2("(%s) dsound_init_in succeeded\n", __func__); } dolog("(%s) handled IN_PLUGGED\n", __func__); break; default: dolog("(%s) Unknown event\n", __func__); break; } } qemu_mutex_unlock(&s->th_mutex); return NULL; } static void dsound_create_thread(dsound *s) { qemu_cond_init(&s->th_cond); qemu_cond_init(&s->init_cond); qemu_mutex_init(&s->th_mutex); qemu_mutex_init(&s->init_mutex); qemu_thread_create(&s->th, "dsound-init-thread", dsound_initialization_thread, (void *)s, QEMU_THREAD_JOINABLE); dolog("(%s) Done\n", __func__); } static void *dsound_audio_init (void) { HRESULT hr; dsound *s = g_malloc0(sizeof(dsound)); s->conf = glob_conf; hr = CoInitialize (NULL); if (FAILED (hr)) { dsound_logerr (hr, "Could not initialize COM\n"); g_free(s); return NULL; } hr = CoCreateInstance ( &CLSID_MMDeviceEnumerator, NULL, CLSCTX_ALL, &IID_IMMDeviceEnumerator, (void **) &s->mmdev_enumerator ); if (FAILED (hr)) { dsound_logerr (hr, "Could not create MMDeviceEnumerator instance\n"); g_free(s); return NULL; } s->noti_client.lpVtbl = &dsound_dsound_vtbl; hr = IMMDeviceEnumerator_RegisterEndpointNotificationCallback(s->mmdev_enumerator, &s->noti_client); if (FAILED (hr)) { dsound_logerr (hr, "Could not register endpoint notification callbacks\n"); g_free(s); return NULL; } dolog("Registering endpoint notification callback succeeded.\n"); dsound_create_thread(s); /* For serialization with init thread * If audio.c invoks pcm_ops.init_out before the init thread finishes it's work, * init_out callback works with undetermined status that is 'out_init_success'. */ qemu_mutex_lock(&s->init_mutex); while (!s->th_initialized) { dolog2("(%s) Waiting for finishing initialization of thread\n", __func__); qemu_cond_wait(&s->init_cond, &s->init_mutex); } qemu_mutex_unlock(&s->init_mutex); dolog ("(%s) finished\n", __func__); return s; } static struct audio_option dsound_options[] = { { .name = "LATENCY_MILLIS", .tag = AUD_OPT_INT, .valp = &glob_conf.latency_millis, .descr = "(undocumented)" }, { .name = "BUFSIZE_OUT", .tag = AUD_OPT_INT, .valp = &glob_conf.bufsize_out, .descr = "(undocumented)" }, { .name = "BUFSIZE_IN", .tag = AUD_OPT_INT, .valp = &glob_conf.bufsize_in, .descr = "(undocumented)" }, { /* End of list */ } }; static struct audio_pcm_ops dsound_pcm_ops = { .init_out = dsound_init_out, .fini_out = dsound_fini_out, .run_out = dsound_run_out, .write = dsound_write, .ctl_out = dsound_ctl_out, .init_in = dsound_init_in, .fini_in = dsound_fini_in, .run_in = dsound_run_in, .read = dsound_read, .ctl_in = dsound_ctl_in }; struct audio_driver dsound_audio_driver = { .name = "dsound", .descr = "DirectSound http://wikipedia.org/wiki/DirectSound", .options = dsound_options, .init = dsound_audio_init, .fini = dsound_audio_fini, .pcm_ops = &dsound_pcm_ops, .can_be_default = 1, .max_voices_out = INT_MAX, .max_voices_in = 1, .voice_size_out = sizeof (DSoundVoiceOut), .voice_size_in = sizeof (DSoundVoiceIn) };