diff options
Diffstat (limited to 'qemu/audio/dsoundaudio.c')
| -rw-r--r-- | qemu/audio/dsoundaudio.c | 905 |
1 files changed, 0 insertions, 905 deletions
diff --git a/qemu/audio/dsoundaudio.c b/qemu/audio/dsoundaudio.c deleted file mode 100644 index 516846eb8..000000000 --- a/qemu/audio/dsoundaudio.c +++ /dev/null @@ -1,905 +0,0 @@ -/* - * 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 "qemu/osdep.h" -#include "qemu-common.h" -#include "audio.h" - -#define AUDIO_CAP "dsound" -#include "audio_int.h" - -#include <windows.h> -#include <mmsystem.h> -#include <objbase.h> -#include <dsound.h> - -#include "audio_win_int.h" - -/* #define DEBUG_DSOUND */ - -typedef struct { - int bufsize_in; - int bufsize_out; - int latency_millis; -} DSoundConf; - -typedef struct { - LPDIRECTSOUND dsound; - LPDIRECTSOUNDCAPTURE dsound_capture; - struct audsettings settings; - DSoundConf conf; -} dsound; - -typedef struct { - HWVoiceOut hw; - LPDIRECTSOUNDBUFFER dsound_buffer; - DWORD old_pos; - int first_time; - 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; - dsound *s; -} 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, "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; - } - - if (*statusp & DSERR_BUFFERLOST) { - dsound_restore_out(dsb, s); - return -1; - } - - 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) { - dolog ("Attempt to control voice without a buffer\n"); - return 0; - } - - 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) { - dolog ("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, 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 + 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) { - 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, "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) { - 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, "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 DSoundConf glob_conf = { - .bufsize_in = 16384, - .bufsize_out = 16384, - .latency_millis = 10 -}; - -static void dsound_audio_fini (void *opaque) -{ - HRESULT hr; - dsound *s = opaque; - - 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); -} - -static void *dsound_audio_init (void) -{ - int err; - 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_DirectSound, - NULL, - CLSCTX_ALL, - &IID_IDirectSound, - (void **) &s->dsound - ); - if (FAILED (hr)) { - dsound_logerr (hr, "Could not create DirectSound instance\n"); - g_free(s); - return NULL; - } - - hr = IDirectSound_Initialize (s->dsound, NULL); - if (FAILED (hr)) { - dsound_logerr (hr, "Could not initialize DirectSound\n"); - - hr = IDirectSound_Release (s->dsound); - if (FAILED (hr)) { - dsound_logerr (hr, "Could not release DirectSound\n"); - } - g_free(s); - return NULL; - } - - 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"); - } - else { - hr = IDirectSoundCapture_Initialize (s->dsound_capture, NULL); - if (FAILED (hr)) { - dsound_logerr (hr, "Could not initialize DirectSoundCapture\n"); - - hr = IDirectSoundCapture_Release (s->dsound_capture); - if (FAILED (hr)) { - dsound_logerr (hr, "Could 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[] = { - { - .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) -}; |