/* * 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 */ #include "vl.h" #define AUDIO_CAP "dsound" #include "audio_int.h" #include #include #include /* #define DEBUG_DSOUND */ struct full_fmt { int freq; int nchannels; audfmt_e fmt; }; static struct { int lock_retries; int restore_retries; int getstatus_retries; int set_primary; int bufsize_in; int bufsize_out; struct full_fmt full_fmt; int latency_millis; } conf = { 1, 1, 1, 0, 16384, 16384, { 44100, 2, AUD_FMT_S16 }, 10 }; typedef struct { LPDIRECTSOUND dsound; LPDIRECTSOUNDCAPTURE dsound_capture; LPDIRECTSOUNDBUFFER dsound_primary_buffer; struct full_fmt fmt; } dsound; static dsound glob_dsound; typedef struct { HWVoiceOut hw; LPDIRECTSOUNDBUFFER dsound_buffer; DWORD old_pos; int first_time; #ifdef DEBUG_DSOUND DWORD old_ppos; DWORD played; DWORD mixed; #endif } DSoundVoiceOut; typedef struct { HWVoiceIn hw; int first_time; LPDIRECTSOUNDCAPTUREBUFFER dsound_capture_buffer; } DSoundVoiceIn; 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, "Can 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) { HRESULT hr; int i; for (i = 0; i < conf.restore_retries; ++i) { hr = IDirectSoundBuffer_Restore (dsb); switch (hr) { case DS_OK: return 0; case DSERR_BUFFERLOST: continue; default: dsound_logerr (hr, "Can not restore playback buffer\n"); return -1; } } dolog ("%d attempts to restore playback buffer failed\n", i); return -1; } static int waveformat_from_full_fmt (WAVEFORMATEX *wfx, struct full_fmt *full_fmt) { memset (wfx, 0, sizeof (*wfx)); wfx->wFormatTag = WAVE_FORMAT_PCM; wfx->nChannels = full_fmt->nchannels; wfx->nSamplesPerSec = full_fmt->freq; wfx->nAvgBytesPerSec = full_fmt->freq << (full_fmt->nchannels == 2); wfx->nBlockAlign = 1 << (full_fmt->nchannels == 2); wfx->cbSize = 0; switch (full_fmt->fmt) { case AUD_FMT_S8: wfx->wBitsPerSample = 8; break; case AUD_FMT_U8: wfx->wBitsPerSample = 8; break; case AUD_FMT_S16: wfx->wBitsPerSample = 16; wfx->nAvgBytesPerSec <<= 1; wfx->nBlockAlign <<= 1; break; case AUD_FMT_U16: wfx->wBitsPerSample = 16; wfx->nAvgBytesPerSec <<= 1; wfx->nBlockAlign <<= 1; break; default: dolog ("Internal logic error: Bad audio format %d\n", full_fmt->freq); return -1; } return 0; } static int waveformat_to_full_fmt (WAVEFORMATEX *wfx, struct full_fmt *full_fmt) { if (wfx->wFormatTag != WAVE_FORMAT_PCM) { dolog ("Invalid wave format, tag is not PCM, but %d\n", wfx->wFormatTag); return -1; } if (!wfx->nSamplesPerSec) { dolog ("Invalid wave format, frequency is zero\n"); return -1; } full_fmt->freq = wfx->nSamplesPerSec; switch (wfx->nChannels) { case 1: full_fmt->nchannels = 1; break; case 2: full_fmt->nchannels = 2; break; default: dolog ( "Invalid wave format, number of channels is not 1 or 2, but %d\n", wfx->nChannels ); return -1; } switch (wfx->wBitsPerSample) { case 8: full_fmt->fmt = AUD_FMT_U8; break; case 16: full_fmt->fmt = AUD_FMT_S16; break; default: dolog ("Invalid wave format, bits per sample is not 8 or 16, but %d\n", wfx->wBitsPerSample); 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) { HRESULT hr; int i; for (i = 0; i < conf.getstatus_retries; ++i) { hr = IDirectSoundBuffer_GetStatus (dsb, statusp); if (FAILED (hr)) { dsound_logerr (hr, "Can not get playback buffer status\n"); return -1; } if (*statusp & DSERR_BUFFERLOST) { if (dsound_restore_out (dsb)) { return -1; } continue; } break; } 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, "Can 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; st_sample_t *src1 = hw->mix_buf + hw->rpos; st_sample_t *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); mixeng_clear (src1, src_len1); } if (src_len2) { dst = advance (dst, src_len1 << hw->info.shift); hw->clip (dst, src2, src_len2); mixeng_clear (src2, src_len2); } hw->rpos = pos % hw->samples; } static void dsound_clear_sample (HWVoiceOut *hw, LPDIRECTSOUNDBUFFER dsb) { 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 ); 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 void dsound_close (dsound *s) { HRESULT hr; if (s->dsound_primary_buffer) { hr = IDirectSoundBuffer_Release (s->dsound_primary_buffer); if (FAILED (hr)) { dsound_logerr (hr, "Can not release primary buffer\n"); } s->dsound_primary_buffer = NULL; } } static int dsound_open (dsound *s) { int err; HRESULT hr; WAVEFORMATEX wfx; DSBUFFERDESC dsbd; HWND hwnd; hwnd = GetForegroundWindow (); hr = IDirectSound_SetCooperativeLevel ( s->dsound, hwnd, DSSCL_PRIORITY ); if (FAILED (hr)) { dsound_logerr (hr, "Can not set cooperative level for window %p\n", hwnd); return -1; } if (!conf.set_primary) { return 0; } err = waveformat_from_full_fmt (&wfx, &conf.full_fmt); if (err) { return -1; } memset (&dsbd, 0, sizeof (dsbd)); dsbd.dwSize = sizeof (dsbd); dsbd.dwFlags = DSBCAPS_PRIMARYBUFFER; dsbd.dwBufferBytes = 0; dsbd.lpwfxFormat = NULL; hr = IDirectSound_CreateSoundBuffer ( s->dsound, &dsbd, &s->dsound_primary_buffer, NULL ); if (FAILED (hr)) { dsound_logerr (hr, "Can not create primary playback buffer\n"); return -1; } hr = IDirectSoundBuffer_SetFormat (s->dsound_primary_buffer, &wfx); if (FAILED (hr)) { dsound_logerr (hr, "Can not set primary playback buffer format\n"); } hr = IDirectSoundBuffer_GetFormat ( s->dsound_primary_buffer, &wfx, sizeof (wfx), NULL ); if (FAILED (hr)) { dsound_logerr (hr, "Can not get primary playback buffer format\n"); goto fail0; } #ifdef DEBUG_DSOUND dolog ("Primary\n"); print_wave_format (&wfx); #endif err = waveformat_to_full_fmt (&wfx, &s->fmt); if (err) { goto fail0; } return 0; fail0: dsound_close (s); return -1; } static int dsound_ctl_out (HWVoiceOut *hw, int cmd, ...) { HRESULT hr; DWORD status; DSoundVoiceOut *ds = (DSoundVoiceOut *) hw; LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer; if (!dsb) { dolog ("Attempt to control voice without a buffer\n"); return 0; } switch (cmd) { case VOICE_ENABLE: if (dsound_get_status_out (dsb, &status)) { return -1; } if (status & DSBSTATUS_PLAYING) { dolog ("warning: voice is already playing\n"); return 0; } dsound_clear_sample (hw, dsb); hr = IDirectSoundBuffer_Play (dsb, 0, 0, DSBPLAY_LOOPING); if (FAILED (hr)) { dsound_logerr (hr, "Can not start playing buffer\n"); return -1; } break; case VOICE_DISABLE: if (dsound_get_status_out (dsb, &status)) { return -1; } if (status & DSBSTATUS_PLAYING) { hr = IDirectSoundBuffer_Stop (dsb); if (FAILED (hr)) { dsound_logerr (hr, "Can 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 err; HRESULT hr; DSoundVoiceOut *ds = (DSoundVoiceOut *) hw; LPDIRECTSOUNDBUFFER dsb = ds->dsound_buffer; int live, len, hwshift; DWORD blen1, blen2; DWORD len1, len2; DWORD decr; DWORD wpos, ppos, old_pos; LPVOID p1, p2; if (!dsb) { dolog ("Attempt to run empty with playback buffer\n"); return 0; } hwshift = hw->info.shift; live = audio_pcm_hw_get_live_out (hw); hr = IDirectSoundBuffer_GetCurrentPosition ( dsb, &ppos, ds->first_time ? &wpos : NULL ); if (FAILED (hr)) { dsound_logerr (hr, "Can not get playback buffer position\n"); return 0; } len = live << hwshift; if (ds->first_time) { if (conf.latency_millis) { DWORD cur_blat = audio_ring_dist (wpos, ppos, hw->bufsize); ds->first_time = 0; old_pos = wpos; old_pos += millis_to_bytes (&hw->info, conf.latency_millis) - cur_blat; old_pos %= hw->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, hw->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 + hw->bufsize))) { len = hw->bufsize - old_pos + ppos; } } if (audio_bug (AUDIO_FUNC, len < 0 || len > hw->bufsize)) { dolog ("len=%d hw->bufsize=%d old_pos=%ld ppos=%ld\n", len, hw->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 ); 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)) % hw->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) { dolog ("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, "Can 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, "Can 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; if (!dscb) { dolog ("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, "Can 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 ); 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, &nominal_volume); } if (p2 && len2) { hw->conv (hw->conv_buf, p2, len2, &nominal_volume); } dsound_unlock_in (dscb, p1, p2, blen1, blen2); hw->wpos = (hw->wpos + decr) % hw->samples; return decr; } static void dsound_audio_fini (void *opaque) { HRESULT hr; dsound *s = opaque; if (!s->dsound) { return; } hr = IDirectSound_Release (s->dsound); if (FAILED (hr)) { dsound_logerr (hr, "Can not release DirectSound\n"); } s->dsound = NULL; if (!s->dsound_capture) { return; } hr = IDirectSoundCapture_Release (s->dsound_capture); if (FAILED (hr)) { dsound_logerr (hr, "Can not release DirectSoundCapture\n"); } s->dsound_capture = NULL; } static void *dsound_audio_init (void) { int err; HRESULT hr; dsound *s = &glob_dsound; hr = CoInitialize (NULL); if (FAILED (hr)) { dsound_logerr (hr, "Can not initialize COM\n"); return NULL; } hr = CoCreateInstance ( &CLSID_DirectSound, NULL, CLSCTX_ALL, &IID_IDirectSound, (void **) &s->dsound ); if (FAILED (hr)) { dsound_logerr (hr, "Can not create DirectSound instance\n"); return NULL; } hr = IDirectSound_Initialize (s->dsound, NULL); if (FAILED (hr)) { dsound_logerr (hr, "Can not initialize DirectSound\n"); return NULL; } hr = CoCreateInstance ( &CLSID_DirectSoundCapture, NULL, CLSCTX_ALL, &IID_IDirectSoundCapture, (void **) &s->dsound_capture ); if (FAILED (hr)) { dsound_logerr (hr, "Can not create DirectSoundCapture instance\n"); } else { hr = IDirectSoundCapture_Initialize (s->dsound_capture, NULL); if (FAILED (hr)) { dsound_logerr (hr, "Can not initialize DirectSoundCapture\n"); hr = IDirectSoundCapture_Release (s->dsound_capture); if (FAILED (hr)) { dsound_logerr (hr, "Can not release DirectSoundCapture\n"); } s->dsound_capture = NULL; } } err = dsound_open (s); if (err) { dsound_audio_fini (s); return NULL; } return s; } static struct audio_option dsound_options[] = { {"LOCK_RETRIES", AUD_OPT_INT, &conf.lock_retries, "Number of times to attempt locking the buffer", NULL, 0}, {"RESTOURE_RETRIES", AUD_OPT_INT, &conf.restore_retries, "Number of times to attempt restoring the buffer", NULL, 0}, {"GETSTATUS_RETRIES", AUD_OPT_INT, &conf.getstatus_retries, "Number of times to attempt getting status of the buffer", NULL, 0}, {"SET_PRIMARY", AUD_OPT_BOOL, &conf.set_primary, "Set the parameters of primary buffer", NULL, 0}, {"LATENCY_MILLIS", AUD_OPT_INT, &conf.latency_millis, "(undocumented)", NULL, 0}, {"PRIMARY_FREQ", AUD_OPT_INT, &conf.full_fmt.freq, "Primary buffer frequency", NULL, 0}, {"PRIMARY_CHANNELS", AUD_OPT_INT, &conf.full_fmt.nchannels, "Primary buffer number of channels (1 - mono, 2 - stereo)", NULL, 0}, {"PRIMARY_FMT", AUD_OPT_FMT, &conf.full_fmt.fmt, "Primary buffer format", NULL, 0}, {"BUFSIZE_OUT", AUD_OPT_INT, &conf.bufsize_out, "(undocumented)", NULL, 0}, {"BUFSIZE_IN", AUD_OPT_INT, &conf.bufsize_in, "(undocumented)", NULL, 0}, {NULL, 0, NULL, NULL, NULL, 0} }; static struct audio_pcm_ops dsound_pcm_ops = { dsound_init_out, dsound_fini_out, dsound_run_out, dsound_write, dsound_ctl_out, dsound_init_in, dsound_fini_in, dsound_run_in, dsound_read, dsound_ctl_in }; struct audio_driver dsound_audio_driver = { INIT_FIELD (name = ) "dsound", INIT_FIELD (descr = ) "DirectSound http://wikipedia.org/wiki/DirectSound", INIT_FIELD (options = ) dsound_options, INIT_FIELD (init = ) dsound_audio_init, INIT_FIELD (fini = ) dsound_audio_fini, INIT_FIELD (pcm_ops = ) &dsound_pcm_ops, INIT_FIELD (can_be_default = ) 1, INIT_FIELD (max_voices_out = ) INT_MAX, INIT_FIELD (max_voices_in = ) 1, INIT_FIELD (voice_size_out = ) sizeof (DSoundVoiceOut), INIT_FIELD (voice_size_in = ) sizeof (DSoundVoiceIn) };