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 #define HWVOICE HWVoiceIn
  33 #define DSOUNDVOICE DSoundVoiceIn
  34 #else
  35 #define NAME "playback buffer"
  36 #define NAME2 "DirectSound"
  37 #define TYPE out
  38 #define IFACE IDirectSoundBuffer
  39 #define BUFPTR LPDIRECTSOUNDBUFFER
  40 #define FIELD dsound_buffer
  41 #define FIELD2 dsound
  42 #define HWVOICE HWVoiceOut
  43 #define DSOUNDVOICE DSoundVoiceOut
  44 #endif
  45
  46 static int glue (dsound_unlock_, TYPE) (
  47     BUFPTR buf,
  48     LPVOID p1,
  49     LPVOID p2,
  50     DWORD blen1,
  51     DWORD blen2
  52     )
  53 {
  54     HRESULT hr;
  55
  56     hr = glue (IFACE, _Unlock) (buf, p1, blen1, p2, blen2);
  57     if (FAILED (hr)) {
  58         dsound_logerr (hr, "Could not unlock " NAME "\n");
  59         return -1;
  60     }
  61
  62     return 0;
  63 }
  64
  65 static int glue (dsound_lock_, TYPE) (
  66     BUFPTR buf,
  67     struct audio_pcm_info *info,
  68     DWORD pos,
  69     DWORD len,
  70     LPVOID *p1p,
  71     LPVOID *p2p,
  72     DWORD *blen1p,
  73     DWORD *blen2p,
  74     int entire,
  75     dsound *s
  76     )
  77 {
  78     HRESULT hr;
  79     DWORD flag;
  80
  81 #ifdef DSBTYPE_IN
  82     flag = entire ? DSCBLOCK_ENTIREBUFFER : 0;
  83 #else
  84     flag = entire ? DSBLOCK_ENTIREBUFFER : 0;
  85 #endif
  86     hr = glue(IFACE, _Lock)(buf, pos, len, p1p, blen1p, p2p, blen2p, flag);
  87
  88     if (FAILED (hr)) {
  89 #ifndef DSBTYPE_IN
  90         if (hr == DSERR_BUFFERLOST) {
  91             if (glue (dsound_restore_, TYPE) (buf, s)) {
  92                 dsound_logerr (hr, "Could not lock " NAME "\n");
  93             }
  94             goto fail;
  95         }
  96 #endif
  97         dsound_logerr (hr, "Could not lock " NAME "\n");
  98         goto fail;
  99     }
 100
 101     if ((p1p && *p1p && (*blen1p % info->bytes_per_frame)) ||
 102         (p2p && *p2p && (*blen2p % info->bytes_per_frame))) {
 103         dolog("DirectSound returned misaligned buffer %ld %ld\n",
 104               *blen1p, *blen2p);
 105         glue(dsound_unlock_, TYPE)(buf, *p1p, p2p ? *p2p : NULL, *blen1p,
 106                                    blen2p ? *blen2p : 0);
 107         goto fail;
 108     }
 109
 110     if (p1p && !*p1p && *blen1p) {
 111         dolog("warning: !p1 && blen1=%ld\n", *blen1p);
 112         *blen1p = 0;
 113     }
 114
 115     if (p2p && !*p2p && *blen2p) {
 116         dolog("warning: !p2 && blen2=%ld\n", *blen2p);
 117         *blen2p = 0;
 118     }
 119
 120     return 0;
 121
 122  fail:
 123     *p1p = NULL - 1;
 124     *blen1p = -1;
 125     if (p2p) {
 126         *p2p = NULL - 1;
 127         *blen2p = -1;
 128     }
 129     return -1;
 130 }
 131
 132 #ifdef DSBTYPE_IN
 133 static void dsound_fini_in (HWVoiceIn *hw)
 134 #else
 135 static void dsound_fini_out (HWVoiceOut *hw)
 136 #endif
 137 {
 138     HRESULT hr;
 139 #ifdef DSBTYPE_IN
 140     DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
 141 #else
 142     DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
 143 #endif
 144
 145     if (ds->FIELD) {
 146         hr = glue (IFACE, _Stop) (ds->FIELD);
 147         if (FAILED (hr)) {
 148             dsound_logerr (hr, "Could not stop " NAME "\n");
 149         }
 150
 151         hr = glue (IFACE, _Release) (ds->FIELD);
 152         if (FAILED (hr)) {
 153             dsound_logerr (hr, "Could not release " NAME "\n");
 154         }
 155         ds->FIELD = NULL;
 156     }
 157 }
 158
 159 #ifdef DSBTYPE_IN
 160 static int dsound_init_in(HWVoiceIn *hw, struct audsettings *as,
 161                           void *drv_opaque)
 162 #else
 163 static int dsound_init_out(HWVoiceOut *hw, struct audsettings *as,
 164                            void *drv_opaque)
 165 #endif
 166 {
 167     int err;
 168     HRESULT hr;
 169     dsound *s = drv_opaque;
 170     WAVEFORMATEX wfx;
 171     struct audsettings obt_as;
 172 #ifdef DSBTYPE_IN
 173     const char *typ = "ADC";
 174     DSoundVoiceIn *ds = (DSoundVoiceIn *) hw;
 175     DSCBUFFERDESC bd;
 176     DSCBCAPS bc;
 177     AudiodevPerDirectionOptions *pdo = s->dev->u.dsound.in;
 178 #else
 179     const char *typ = "DAC";
 180     DSoundVoiceOut *ds = (DSoundVoiceOut *) hw;
 181     DSBUFFERDESC bd;
 182     DSBCAPS bc;
 183     AudiodevPerDirectionOptions *pdo = s->dev->u.dsound.out;
 184 #endif
 185
 186     if (!s->FIELD2) {
 187         dolog ("Attempt to initialize voice without " NAME2 " object\n");
 188         return -1;
 189     }
 190
 191     err = waveformat_from_audio_settings (&wfx, as);
 192     if (err) {
 193         return -1;
 194     }
 195
 196     memset (&bd, 0, sizeof (bd));
 197     bd.dwSize = sizeof (bd);
 198     bd.lpwfxFormat = &wfx;
 199     bd.dwBufferBytes = audio_buffer_bytes(pdo, as, 92880);
 200 #ifdef DSBTYPE_IN
 201     hr = IDirectSoundCapture_CreateCaptureBuffer (
 202         s->dsound_capture,
 203         &bd,
 204         &ds->dsound_capture_buffer,
 205         NULL
 206         );
 207 #else
 208     bd.dwFlags = DSBCAPS_GLOBALFOCUS | DSBCAPS_GETCURRENTPOSITION2;
 209     hr = IDirectSound_CreateSoundBuffer (
 210         s->dsound,
 211         &bd,
 212         &ds->dsound_buffer,
 213         NULL
 214         );
 215 #endif
 216
 217     if (FAILED (hr)) {
 218         dsound_logerr2 (hr, typ, "Could not create " NAME "\n");
 219         return -1;
 220     }
 221
 222     hr = glue (IFACE, _GetFormat) (ds->FIELD, &wfx, sizeof (wfx), NULL);
 223     if (FAILED (hr)) {
 224         dsound_logerr2 (hr, typ, "Could not get " NAME " format\n");
 225         goto fail0;
 226     }
 227
 228 #ifdef DEBUG_DSOUND
 229     dolog (NAME "\n");
 230     print_wave_format (&wfx);
 231 #endif
 232
 233     memset (&bc, 0, sizeof (bc));
 234     bc.dwSize = sizeof (bc);
 235
 236     hr = glue (IFACE, _GetCaps) (ds->FIELD, &bc);
 237     if (FAILED (hr)) {
 238         dsound_logerr2 (hr, typ, "Could not get " NAME " format\n");
 239         goto fail0;
 240     }
 241
 242     err = waveformat_to_audio_settings (&wfx, &obt_as);
 243     if (err) {
 244         goto fail0;
 245     }
 246
 247     ds->first_time = true;
 248     obt_as.endianness = 0;
 249     audio_pcm_init_info (&hw->info, &obt_as);
 250
 251     if (bc.dwBufferBytes % hw->info.bytes_per_frame) {
 252         dolog (
 253             "GetCaps returned misaligned buffer size %ld, alignment %d\n",
 254             bc.dwBufferBytes, hw->info.bytes_per_frame
 255             );
 256     }
 257     hw->size_emul = bc.dwBufferBytes;
 258     hw->samples = bc.dwBufferBytes / hw->info.bytes_per_frame;
 259     ds->s = s;
 260
 261 #ifdef DEBUG_DSOUND
 262     dolog ("caps %ld, desc %ld\n",
 263            bc.dwBufferBytes, bd.dwBufferBytes);
 264 #endif
 265     return 0;
 266
 267  fail0:
 268     glue (dsound_fini_, TYPE) (hw);
 269     return -1;
 270 }
 271
 272 #undef NAME
 273 #undef NAME2
 274 #undef TYPE
 275 #undef IFACE
 276 #undef BUFPTR
 277 #undef FIELD
 278 #undef FIELD2
 279 #undef HWVOICE
 280 #undef DSOUNDVOICE