audio/dsound_template.h

   1 /*
   2  * QEMU DirectSound audio driver header
   3  *
   4  * Copyright (c) 2005 Vassili Karpov (malc)
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #ifdef DSBTYPE_IN
  25 #define NAME "capture buffer"
  26 #define NAME2 "DirectSoundCapture"
  27 #define TYPE in
  28 #define IFACE IDirectSoundCaptureBuffer
  29 #define BUFPTR LPDIRECTSOUNDCAPTUREBUFFER
  30 #define FIELD dsound_capture_buffer
  31 #define FIELD2 dsound_capture
  32 #else
  33 #define NAME "playback buffer"
  34 #define NAME2 "DirectSound"
  35 #define TYPE out
  36 #define IFACE IDirectSoundBuffer
  37 #define BUFPTR LPDIRECTSOUNDBUFFER
  38 #define FIELD dsound_buffer
  39 #define FIELD2 dsound
  40 #endif
  41
  42 static int glue (dsound_unlock_, TYPE) (
  43     BUFPTR buf,
  44     LPVOID p1,
  45     LPVOID p2,
  46     DWORD blen1,
  47     DWORD blen2
  48     )
  49 {
  50     HRESULT hr;
  51
  52     hr = glue (IFACE, _Unlock) (buf, p1, blen1, p2, blen2);
  53     if (FAILED (hr)) {
  54         dsound_logerr (hr, "Could not unlock " NAME "\n");
  55         return -1;
  56     }
  57
  58     return 0;
  59 }
  60
  61 static int glue (dsound_lock_, TYPE) (
  62     BUFPTR buf,
  63     struct audio_pcm_info *info,
  64     DWORD pos,
  65     DWORD len,
  66     LPVOID *p1p,
  67     LPVOID *p2p,
  68     DWORD *blen1p,
  69     DWORD *blen2p,
  70     int entire
  71     )
  72 {
  73     HRESULT hr;
  74     int i;
  75     LPVOID p1 = NULL, p2 = NULL;
  76     DWORD blen1 = 0, blen2 = 0;
  77     DWORD flag;
  78
  79 #ifdef DSBTYPE_IN
  80     flag = entire ? DSCBLOCK_ENTIREBUFFER : 0;
  81 #else
  82     flag = entire ? DSBLOCK_ENTIREBUFFER : 0;
  83 #endif
  84     for (i = 0; i < conf.lock_retries; ++i) {
  85         hr = glue (IFACE, _Lock) (
  86             buf,
  87             pos,
  88             len,
  89             &p1,
  90             &blen1,
  91             &p2,
  92             &blen2,
  93             flag
  94             );
  95
  96         if (FAILED (hr)) {
  97 #ifndef DSBTYPE_IN
  98             if (hr == DSERR_BUFFERLOST) {
  99                 if (glue (dsound_restore_, TYPE) (buf)) {
 100                     dsound_logerr (hr, "Could not lock " NAME "\n");
 101                     goto fail;
 102                 }
 103                 continue;
 104             }
 105 #endif
 106             dsound_logerr (hr, "Could not lock " NAME "\n");
 107             goto fail;
 108         }
 109
 110         break;
 111     }
 112
 113     if (i == conf.lock_retries) {
 114         dolog ("%d attempts to lock " NAME " failed\n", i);
 115         goto fail;
 116     }
 117
 118     if ((p1 && (blen1 & info->align)) || (p2 && (blen2 & info->align))) {
 119         dolog ("DirectSound returned misaligned buffer %ld %ld\n",
 120                blen1, blen2);
 121         glue (dsound_unlock_, TYPE) (buf, p1, p2, blen1, blen2);
 122         goto fail;
 123     }
 124
 125     if (!p1 && blen1) {
 126         dolog ("warning: !p1 && blen1=%ld\n", blen1);
 127         blen1 = 0;
 128     }
 129
 130     if (!p2 && blen2) {
 131         dolog ("warning: !p2 && blen2=%ld\n", blen2);
 132         blen2 = 0;
 133     }
 134
 135     *p1p = p1;
 136     *p2p = p2;
 137     *blen1p = blen1;
 138     *blen2p = blen2;
 139     return 0;
 140
 141  fail:
 142     *p1p = NULL - 1;
 143     *p2p = NULL - 1;
 144     *blen1p = -1;
 145     *blen2p = -1;
 146     return -1;
 147 }
 148
 149 #ifdef DSBTYPE_IN
 150 static void dsound_fini_in (HWVoiceIn *hw)
 151 #else
 152 static void dsound_fini_out (HWVoiceOut *hw)
 153 #endif
 154 {
 155     HRESULT hr;
 156 #ifdef DSBTYPE_IN
 157     DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
 158 #else
 159     DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
 160 #endif
 161
 162     if (ds->FIELD) {
 163         hr = glue (IFACE, _Stop) (ds->FIELD);
 164         if (FAILED (hr)) {
 165             dsound_logerr (hr, "Could not stop " NAME "\n");
 166         }
 167
 168         hr = glue (IFACE, _Release) (ds->FIELD);
 169         if (FAILED (hr)) {
 170             dsound_logerr (hr, "Could not release " NAME "\n");
 171         }
 172         ds->FIELD = NULL;
 173     }
 174 }
 175
 176 #ifdef DSBTYPE_IN
 177 static int dsound_init_in (HWVoiceIn *hw, struct audsettings *as)
 178 #else
 179 static int dsound_init_out (HWVoiceOut *hw, struct audsettings *as)
 180 #endif
 181 {
 182     int err;
 183     HRESULT hr;
 184     dsound *s = &glob_dsound;
 185     WAVEFORMATEX wfx;
 186     struct audsettings obt_as;
 187 #ifdef DSBTYPE_IN
 188     const char *typ = "ADC";
 189     DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
 190     DSCBUFFERDESC bd;
 191     DSCBCAPS bc;
 192 #else
 193     const char *typ = "DAC";
 194     DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
 195     DSBUFFERDESC bd;
 196     DSBCAPS bc;
 197 #endif
 198
 199     if (!s->FIELD2) {
 200         dolog ("Attempt to initialize voice without " NAME2 " object\n");
 201         return -1;
 202     }
 203
 204     err = waveformat_from_audio_settings (&wfx, as);
 205     if (err) {
 206         return -1;
 207     }
 208
 209     memset (&bd, 0, sizeof (bd));
 210     bd.dwSize = sizeof (bd);
 211     bd.lpwfxFormat = &wfx;
 212 #ifdef DSBTYPE_IN
 213     bd.dwBufferBytes = conf.bufsize_in;
 214     hr = IDirectSoundCapture_CreateCaptureBuffer (
 215         s->dsound_capture,
 216         &bd,
 217         &ds->dsound_capture_buffer,
 218         NULL
 219         );
 220 #else
 221     bd.dwFlags = DSBCAPS_STICKYFOCUS | DSBCAPS_GETCURRENTPOSITION2;
 222     bd.dwBufferBytes = conf.bufsize_out;
 223     hr = IDirectSound_CreateSoundBuffer (
 224         s->dsound,
 225         &bd,
 226         &ds->dsound_buffer,
 227         NULL
 228         );
 229 #endif
 230
 231     if (FAILED (hr)) {
 232         dsound_logerr2 (hr, typ, "Could not create " NAME "\n");
 233         return -1;
 234     }
 235
 236     hr = glue (IFACE, _GetFormat) (ds->FIELD, &wfx, sizeof (wfx), NULL);
 237     if (FAILED (hr)) {
 238         dsound_logerr2 (hr, typ, "Could not get " NAME " format\n");
 239         goto fail0;
 240     }
 241
 242 #ifdef DEBUG_DSOUND
 243     dolog (NAME "\n");
 244     print_wave_format (&wfx);
 245 #endif
 246
 247     memset (&bc, 0, sizeof (bc));
 248     bc.dwSize = sizeof (bc);
 249
 250     hr = glue (IFACE, _GetCaps) (ds->FIELD, &bc);
 251     if (FAILED (hr)) {
 252         dsound_logerr2 (hr, typ, "Could not get " NAME " format\n");
 253         goto fail0;
 254     }
 255
 256     err = waveformat_to_audio_settings (&wfx, &obt_as);
 257     if (err) {
 258         goto fail0;
 259     }
 260
 261     ds->first_time = 1;
 262     obt_as.endianness = 0;
 263     audio_pcm_init_info (&hw->info, &obt_as);
 264
 265     if (bc.dwBufferBytes & hw->info.align) {
 266         dolog (
 267             "GetCaps returned misaligned buffer size %ld, alignment %d\n",
 268             bc.dwBufferBytes, hw->info.align + 1
 269             );
 270     }
 271     hw->samples = bc.dwBufferBytes >> hw->info.shift;
 272
 273 #ifdef DEBUG_DSOUND
 274     dolog ("caps %ld, desc %ld\n",
 275            bc.dwBufferBytes, bd.dwBufferBytes);
 276
 277     dolog ("bufsize %d, freq %d, chan %d, fmt %d\n",
 278            hw->bufsize, settings.freq, settings.nchannels, settings.fmt);
 279 #endif
 280     return 0;
 281
 282  fail0:
 283     glue (dsound_fini_, TYPE) (hw);
 284     return -1;
 285 }
 286
 287 #undef NAME
 288 #undef NAME2
 289 #undef TYPE
 290 #undef IFACE
 291 #undef BUFPTR
 292 #undef FIELD
 293 #undef FIELD2