| /* |
| * 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 "audio.h" |
| |
| #define AUDIO_CAP "dsound" |
| #include "audio_int.h" |
| #include "qemu/host-utils.h" |
| #include "qemu/module.h" |
| |
| #include <windows.h> |
| #include <mmsystem.h> |
| #include <objbase.h> |
| #include <dsound.h> |
| |
| #include "audio_win_int.h" |
| |
| /* #define DEBUG_DSOUND */ |
| |
| typedef struct { |
| LPDIRECTSOUND dsound; |
| LPDIRECTSOUNDCAPTURE dsound_capture; |
| struct audsettings settings; |
| Audiodev *dev; |
| } 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 uint64_t usecs_to_bytes(struct audio_pcm_info *info, uint32_t usecs) |
| { |
| return muldiv64(usecs, info->bytes_per_second, 1000000); |
| } |
| |
| #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; |
| AudiodevDsoundOptions *dso = &s->dev->u.dsound; |
| |
| 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 (dso->latency) { |
| DWORD cur_blat; |
| |
| cur_blat = audio_ring_dist (wpos, ppos, bufsize); |
| ds->first_time = 0; |
| old_pos = wpos; |
| old_pos += |
| usecs_to_bytes(&hw->info, dso->latency) - 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(__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 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(Audiodev *dev) |
| { |
| int err; |
| HRESULT hr; |
| dsound *s = g_malloc0(sizeof(dsound)); |
| AudiodevDsoundOptions *dso; |
| |
| assert(dev->driver == AUDIODEV_DRIVER_DSOUND); |
| s->dev = dev; |
| dso = &dev->u.dsound; |
| |
| if (!dso->has_latency) { |
| dso->has_latency = true; |
| dso->latency = 10000; /* 10 ms */ |
| } |
| |
| 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_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 |
| }; |
| |
| static struct audio_driver dsound_audio_driver = { |
| .name = "dsound", |
| .descr = "DirectSound http://wikipedia.org/wiki/DirectSound", |
| .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) |
| }; |
| |
| static void register_audio_dsound(void) |
| { |
| audio_driver_register(&dsound_audio_driver); |
| } |
| type_init(register_audio_dsound); |