--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/qemu-symbian-svp/audio/dsoundaudio.c Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,1089 @@
+/*
+ * 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-common.h"
+#include "audio.h"
+
+#define AUDIO_CAP "dsound"
+#include "audio_int.h"
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <mmsystem.h>
+#include <objbase.h>
+#include <dsound.h>
+
+/* #define DEBUG_DSOUND */
+
+static struct {
+ int lock_retries;
+ int restore_retries;
+ int getstatus_retries;
+ int set_primary;
+ int bufsize_in;
+ int bufsize_out;
+ struct audsettings settings;
+ 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 audsettings settings;
+} 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, "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)
+{
+ 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, "Could not restore playback buffer\n");
+ return -1;
+ }
+ }
+
+ dolog ("%d attempts to restore playback buffer failed\n", i);
+ return -1;
+}
+
+static int waveformat_from_audio_settings (WAVEFORMATEX *wfx,
+ struct audsettings *as)
+{
+ memset (wfx, 0, sizeof (*wfx));
+
+ wfx->wFormatTag = WAVE_FORMAT_PCM;
+ wfx->nChannels = as->nchannels;
+ wfx->nSamplesPerSec = as->freq;
+ wfx->nAvgBytesPerSec = as->freq << (as->nchannels == 2);
+ wfx->nBlockAlign = 1 << (as->nchannels == 2);
+ wfx->cbSize = 0;
+
+ switch (as->fmt) {
+ case AUD_FMT_S8:
+ case AUD_FMT_U8:
+ wfx->wBitsPerSample = 8;
+ break;
+
+ case AUD_FMT_S16:
+ case AUD_FMT_U16:
+ wfx->wBitsPerSample = 16;
+ wfx->nAvgBytesPerSec <<= 1;
+ wfx->nBlockAlign <<= 1;
+ break;
+
+ case AUD_FMT_S32:
+ case AUD_FMT_U32:
+ wfx->wBitsPerSample = 32;
+ wfx->nAvgBytesPerSec <<= 2;
+ wfx->nBlockAlign <<= 2;
+ break;
+
+ default:
+ dolog ("Internal logic error: Bad audio format %d\n", as->freq);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int waveformat_to_audio_settings (WAVEFORMATEX *wfx,
+ struct audsettings *as)
+{
+ 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;
+ }
+ as->freq = wfx->nSamplesPerSec;
+
+ switch (wfx->nChannels) {
+ case 1:
+ as->nchannels = 1;
+ break;
+
+ case 2:
+ as->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:
+ as->fmt = AUD_FMT_U8;
+ break;
+
+ case 16:
+ as->fmt = AUD_FMT_S16;
+ break;
+
+ case 32:
+ as->fmt = AUD_FMT_S32;
+ break;
+
+ default:
+ dolog ("Invalid wave format, bits per sample is not "
+ "8, 16 or 32, 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, "Could 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, "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)
+{
+ 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, "Could 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, "Could not set cooperative level for window %p\n",
+ hwnd);
+ return -1;
+ }
+
+ if (!conf.set_primary) {
+ return 0;
+ }
+
+ err = waveformat_from_audio_settings (&wfx, &conf.settings);
+ 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, "Could not create primary playback buffer\n");
+ return -1;
+ }
+
+ hr = IDirectSoundBuffer_SetFormat (s->dsound_primary_buffer, &wfx);
+ if (FAILED (hr)) {
+ dsound_logerr (hr, "Could not set primary playback buffer format\n");
+ }
+
+ hr = IDirectSoundBuffer_GetFormat (
+ s->dsound_primary_buffer,
+ &wfx,
+ sizeof (wfx),
+ NULL
+ );
+ if (FAILED (hr)) {
+ dsound_logerr (hr, "Could not get primary playback buffer format\n");
+ goto fail0;
+ }
+
+#ifdef DEBUG_DSOUND
+ dolog ("Primary\n");
+ print_wave_format (&wfx);
+#endif
+
+ err = waveformat_to_audio_settings (&wfx, &s->settings);
+ 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, "Could 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, "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 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;
+ int bufsize;
+
+ if (!dsb) {
+ dolog ("Attempt to run empty with playback buffer\n");
+ return 0;
+ }
+
+ hwshift = hw->info.shift;
+ bufsize = hw->samples << hwshift;
+
+ live = audio_pcm_hw_get_live_out (hw);
+
+ 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
+ );
+ 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;
+
+ 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
+ );
+ 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, "Could not release DirectSound\n");
+ }
+ s->dsound = NULL;
+
+ if (!s->dsound_capture) {
+ return;
+ }
+
+ hr = IDirectSoundCapture_Release (s->dsound_capture);
+ if (FAILED (hr)) {
+ dsound_logerr (hr, "Could 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, "Could not initialize COM\n");
+ 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");
+ 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");
+ }
+ s->dsound = NULL;
+ 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[] = {
+ {"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.settings.freq,
+ "Primary buffer frequency", NULL, 0},
+ {"PRIMARY_CHANNELS", AUD_OPT_INT, &conf.settings.nchannels,
+ "Primary buffer number of channels (1 - mono, 2 - stereo)", NULL, 0},
+ {"PRIMARY_FMT", AUD_OPT_FMT, &conf.settings.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)
+};