J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #define USE_ERROR |
| 27 | #define USE_TRACE |
| 28 | |
| 29 | /* define this for the silencing/servicing code. Requires USE_TRACE */ |
| 30 | //#define USE_DEBUG_SILENCING |
| 31 | |
| 32 | #ifndef WIN32_EXTRA_LEAN |
| 33 | #define WIN32_EXTRA_LEAN |
| 34 | #endif |
| 35 | #ifndef WIN32_LEAN_AND_MEAN |
| 36 | #define WIN32_LEAN_AND_MEAN |
| 37 | #endif |
| 38 | |
| 39 | #include <windows.h> |
| 40 | #include <mmsystem.h> |
| 41 | #include <string.h> |
| 42 | |
| 43 | /* include DirectSound headers */ |
| 44 | #include <dsound.h> |
| 45 | |
| 46 | /* include Java Sound specific headers as C code */ |
| 47 | #ifdef __cplusplus |
| 48 | extern "C" { |
| 49 | #endif |
| 50 | #include "DirectAudio.h" |
| 51 | #ifdef __cplusplus |
| 52 | } |
| 53 | #endif |
| 54 | |
| 55 | #ifdef USE_DEBUG_SILENCING |
| 56 | #define DEBUG_SILENCING0(p) TRACE0(p) |
| 57 | #define DEBUG_SILENCING1(p1,p2) TRACE1(p1,p2) |
| 58 | #define DEBUG_SILENCING2(p1,p2,p3) TRACE2(p1,p2,p3) |
| 59 | #else |
| 60 | #define DEBUG_SILENCING0(p) |
| 61 | #define DEBUG_SILENCING1(p1,p2) |
| 62 | #define DEBUG_SILENCING2(p1,p2,p3) |
| 63 | #endif |
| 64 | |
| 65 | |
| 66 | #if USE_DAUDIO == TRUE |
| 67 | |
| 68 | /* half a minute to wait before device list is re-read */ |
| 69 | #define WAIT_BETWEEN_CACHE_REFRESH_MILLIS 30000 |
| 70 | |
| 71 | /* maximum number of supported devices, playback+capture */ |
| 72 | #define MAX_DS_DEVICES 60 |
| 73 | |
| 74 | typedef struct { |
| 75 | INT32 mixerIndex; |
| 76 | BOOL isSource; |
| 77 | /* either LPDIRECTSOUND or LPDIRECTSOUNDCAPTURE */ |
| 78 | void* dev; |
| 79 | /* how many instances use the dev */ |
| 80 | INT32 refCount; |
| 81 | GUID guid; |
| 82 | } DS_AudioDeviceCache; |
| 83 | |
| 84 | static DS_AudioDeviceCache g_audioDeviceCache[MAX_DS_DEVICES]; |
| 85 | static INT32 g_cacheCount = 0; |
| 86 | static UINT64 g_lastCacheRefreshTime = 0; |
| 87 | static INT32 g_mixerCount = 0; |
| 88 | |
| 89 | BOOL DS_lockCache() { |
| 90 | /* dummy implementation for now, Java does locking */ |
| 91 | return TRUE; |
| 92 | } |
| 93 | |
| 94 | void DS_unlockCache() { |
| 95 | /* dummy implementation for now */ |
| 96 | } |
| 97 | |
| 98 | static GUID CLSID_DAUDIO_Zero = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| 99 | |
| 100 | BOOL isEqualGUID(LPGUID lpGuid1, LPGUID lpGuid2) { |
| 101 | if (lpGuid1 == NULL || lpGuid2 == NULL) { |
| 102 | if (lpGuid1 == lpGuid2) { |
| 103 | return TRUE; |
| 104 | } |
| 105 | if (lpGuid1 == NULL) { |
| 106 | lpGuid1 = (LPGUID) (&CLSID_DAUDIO_Zero); |
| 107 | } else { |
| 108 | lpGuid2 = (LPGUID) (&CLSID_DAUDIO_Zero); |
| 109 | } |
| 110 | } |
| 111 | return memcmp(lpGuid1, lpGuid2, sizeof(GUID)) == 0; |
| 112 | } |
| 113 | |
| 114 | INT32 findCacheItemByGUID(LPGUID lpGuid, BOOL isSource) { |
| 115 | int i; |
| 116 | for (i = 0; i < g_cacheCount; i++) { |
| 117 | if (isSource == g_audioDeviceCache[i].isSource |
| 118 | && isEqualGUID(lpGuid, &(g_audioDeviceCache[i].guid))) { |
| 119 | return i; |
| 120 | } |
| 121 | } |
| 122 | return -1; |
| 123 | } |
| 124 | |
| 125 | INT32 findCacheItemByMixerIndex(INT32 mixerIndex) { |
| 126 | int i; |
| 127 | for (i = 0; i < g_cacheCount; i++) { |
| 128 | if (g_audioDeviceCache[i].mixerIndex == mixerIndex) { |
| 129 | return i; |
| 130 | } |
| 131 | } |
| 132 | return -1; |
| 133 | } |
| 134 | |
| 135 | typedef struct { |
| 136 | INT32 currMixerIndex; |
| 137 | BOOL isSource; |
| 138 | } DS_RefreshCacheStruct; |
| 139 | |
| 140 | |
| 141 | BOOL CALLBACK DS_RefreshCacheEnum(LPGUID lpGuid, |
| 142 | LPCSTR lpstrDescription, |
| 143 | LPCSTR lpstrModule, |
| 144 | DS_RefreshCacheStruct* rs) { |
| 145 | INT32 cacheIndex = findCacheItemByGUID(lpGuid, rs->isSource); |
| 146 | /*TRACE3("Enumerating %d: %s (%s)\n", cacheIndex, lpstrDescription, lpstrModule);*/ |
| 147 | if (cacheIndex == -1) { |
| 148 | /* add this device */ |
| 149 | if (g_cacheCount < MAX_DS_DEVICES-1) { |
| 150 | g_audioDeviceCache[g_cacheCount].mixerIndex = rs->currMixerIndex; |
| 151 | g_audioDeviceCache[g_cacheCount].isSource = rs->isSource; |
| 152 | g_audioDeviceCache[g_cacheCount].dev = NULL; |
| 153 | g_audioDeviceCache[g_cacheCount].refCount = 0; |
| 154 | if (lpGuid == NULL) { |
| 155 | memset(&(g_audioDeviceCache[g_cacheCount].guid), 0, sizeof(GUID)); |
| 156 | } else { |
| 157 | memcpy(&(g_audioDeviceCache[g_cacheCount].guid), lpGuid, sizeof(GUID)); |
| 158 | } |
| 159 | g_cacheCount++; |
| 160 | rs->currMixerIndex++; |
| 161 | } else { |
| 162 | /* failure case: more than MAX_DS_DEVICES available... */ |
| 163 | } |
| 164 | } else { |
| 165 | /* device already exists in cache... update mixer number */ |
| 166 | g_audioDeviceCache[cacheIndex].mixerIndex = rs->currMixerIndex; |
| 167 | rs->currMixerIndex++; |
| 168 | } |
| 169 | /* continue enumeration */ |
| 170 | return TRUE; |
| 171 | } |
| 172 | |
| 173 | ///// implemented functions of DirectAudio.h |
| 174 | |
| 175 | INT32 DAUDIO_GetDirectAudioDeviceCount() { |
| 176 | DS_RefreshCacheStruct rs; |
| 177 | INT32 oldCount; |
| 178 | INT32 cacheIndex; |
| 179 | |
| 180 | if (!DS_lockCache()) { |
| 181 | return 0; |
| 182 | } |
| 183 | |
| 184 | if (g_lastCacheRefreshTime == 0 |
| 185 | || (UINT64) timeGetTime() > (UINT64) (g_lastCacheRefreshTime + WAIT_BETWEEN_CACHE_REFRESH_MILLIS)) { |
| 186 | /* first, initialize any old cache items */ |
| 187 | for (cacheIndex = 0; cacheIndex < g_cacheCount; cacheIndex++) { |
| 188 | g_audioDeviceCache[cacheIndex].mixerIndex = -1; |
| 189 | } |
| 190 | |
| 191 | /* enumerate all devices and either add them to the device cache, |
| 192 | * or refresh the mixer number |
| 193 | */ |
| 194 | rs.currMixerIndex = 0; |
| 195 | rs.isSource = TRUE; |
| 196 | DirectSoundEnumerate((LPDSENUMCALLBACK) DS_RefreshCacheEnum, &rs); |
| 197 | /* if we only got the Primary Sound Driver (GUID=NULL), |
| 198 | * then there aren't any playback devices installed */ |
| 199 | if (rs.currMixerIndex == 1) { |
| 200 | cacheIndex = findCacheItemByGUID(NULL, TRUE); |
| 201 | if (cacheIndex == 0) { |
| 202 | rs.currMixerIndex = 0; |
| 203 | g_audioDeviceCache[0].mixerIndex = -1; |
| 204 | TRACE0("Removing stale Primary Sound Driver from list.\n"); |
| 205 | } |
| 206 | } |
| 207 | oldCount = rs.currMixerIndex; |
| 208 | rs.isSource = FALSE; |
| 209 | DirectSoundCaptureEnumerate((LPDSENUMCALLBACK) DS_RefreshCacheEnum, &rs); |
| 210 | /* if we only got the Primary Sound Capture Driver (GUID=NULL), |
| 211 | * then there aren't any capture devices installed */ |
| 212 | if ((rs.currMixerIndex - oldCount) == 1) { |
| 213 | cacheIndex = findCacheItemByGUID(NULL, FALSE); |
| 214 | if (cacheIndex != -1) { |
| 215 | rs.currMixerIndex = oldCount; |
| 216 | g_audioDeviceCache[cacheIndex].mixerIndex = -1; |
| 217 | TRACE0("Removing stale Primary Sound Capture Driver from list.\n"); |
| 218 | } |
| 219 | } |
| 220 | g_mixerCount = rs.currMixerIndex; |
| 221 | |
| 222 | g_lastCacheRefreshTime = (UINT64) timeGetTime(); |
| 223 | } |
| 224 | DS_unlockCache(); |
| 225 | /*TRACE1("DirectSound: %d installed devices\n", g_mixerCount);*/ |
| 226 | return g_mixerCount; |
| 227 | } |
| 228 | |
| 229 | BOOL CALLBACK DS_GetDescEnum(LPGUID lpGuid, |
| 230 | LPCSTR lpstrDescription, |
| 231 | LPCSTR lpstrModule, |
| 232 | DirectAudioDeviceDescription* desc) { |
| 233 | |
| 234 | INT32 cacheIndex = findCacheItemByGUID(lpGuid, g_audioDeviceCache[desc->deviceID].isSource); |
| 235 | if (cacheIndex == desc->deviceID) { |
| 236 | strncpy(desc->name, lpstrDescription, DAUDIO_STRING_LENGTH); |
| 237 | //strncpy(desc->description, lpstrModule, DAUDIO_STRING_LENGTH); |
| 238 | desc->maxSimulLines = -1; |
| 239 | /* do not continue enumeration */ |
| 240 | return FALSE; |
| 241 | } |
| 242 | return TRUE; |
| 243 | } |
| 244 | |
| 245 | |
| 246 | INT32 DAUDIO_GetDirectAudioDeviceDescription(INT32 mixerIndex, DirectAudioDeviceDescription* desc) { |
| 247 | |
| 248 | if (!DS_lockCache()) { |
| 249 | return FALSE; |
| 250 | } |
| 251 | |
| 252 | /* set the deviceID field to the cache index */ |
| 253 | desc->deviceID = findCacheItemByMixerIndex(mixerIndex); |
| 254 | if (desc->deviceID < 0) { |
| 255 | DS_unlockCache(); |
| 256 | return FALSE; |
| 257 | } |
| 258 | desc->maxSimulLines = 0; |
| 259 | if (g_audioDeviceCache[desc->deviceID].isSource) { |
| 260 | DirectSoundEnumerate((LPDSENUMCALLBACK) DS_GetDescEnum, desc); |
| 261 | strncpy(desc->description, "DirectSound Playback", DAUDIO_STRING_LENGTH); |
| 262 | } else { |
| 263 | DirectSoundCaptureEnumerate((LPDSENUMCALLBACK) DS_GetDescEnum, desc); |
| 264 | strncpy(desc->description, "DirectSound Capture", DAUDIO_STRING_LENGTH); |
| 265 | } |
| 266 | |
| 267 | /*desc->vendor; |
| 268 | desc->version;*/ |
| 269 | |
| 270 | DS_unlockCache(); |
| 271 | return (desc->maxSimulLines == -1)?TRUE:FALSE; |
| 272 | } |
| 273 | |
| 274 | /* multi-channel info: http://www.microsoft.com/whdc/hwdev/tech/audio/multichaud.mspx */ |
| 275 | |
| 276 | //static UINT32 sampleRateArray[] = { 8000, 11025, 16000, 22050, 32000, 44100, 48000, 56000, 88000, 96000, 172000, 192000 }; |
| 277 | static INT32 sampleRateArray[] = { -1 }; |
| 278 | static INT32 channelsArray[] = { 1, 2}; |
| 279 | static INT32 bitsArray[] = { 8, 16}; |
| 280 | |
| 281 | #define SAMPLERATE_COUNT sizeof(sampleRateArray)/sizeof(INT32) |
| 282 | #define CHANNELS_COUNT sizeof(channelsArray)/sizeof(INT32) |
| 283 | #define BITS_COUNT sizeof(bitsArray)/sizeof(INT32) |
| 284 | |
| 285 | void DAUDIO_GetFormats(INT32 mixerIndex, INT32 deviceID, int isSource, void* creator) { |
| 286 | |
| 287 | int rateIndex, channelIndex, bitIndex; |
| 288 | |
| 289 | /* no need to lock, since deviceID identifies the device sufficiently */ |
| 290 | |
| 291 | /* sanity */ |
| 292 | if (deviceID >= g_cacheCount) { |
| 293 | return; |
| 294 | } |
| 295 | if ((g_audioDeviceCache[deviceID].isSource && !isSource) |
| 296 | || (!g_audioDeviceCache[deviceID].isSource && isSource)) { |
| 297 | /* only support Playback or Capture */ |
| 298 | return; |
| 299 | } |
| 300 | |
| 301 | for (rateIndex = 0; rateIndex < SAMPLERATE_COUNT; rateIndex++) { |
| 302 | for (channelIndex = 0; channelIndex < CHANNELS_COUNT; channelIndex++) { |
| 303 | for (bitIndex = 0; bitIndex < BITS_COUNT; bitIndex++) { |
| 304 | DAUDIO_AddAudioFormat(creator, bitsArray[bitIndex], |
| 305 | ((bitsArray[bitIndex] + 7) / 8) * channelsArray[channelIndex], |
| 306 | channelsArray[channelIndex], |
| 307 | (float) sampleRateArray[rateIndex], |
| 308 | DAUDIO_PCM, |
| 309 | (bitsArray[bitIndex]==8)?FALSE:TRUE, /* signed */ |
| 310 | (bitsArray[bitIndex]==8)?FALSE: |
| 311 | #ifndef _LITTLE_ENDIAN |
| 312 | TRUE /* big endian */ |
| 313 | #else |
| 314 | FALSE /* little endian */ |
| 315 | #endif |
| 316 | ); |
| 317 | } |
| 318 | } |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | typedef struct { |
| 323 | int deviceID; |
| 324 | /* for convenience */ |
| 325 | BOOL isSource; |
| 326 | /* the secondary buffer (Playback) */ |
| 327 | LPDIRECTSOUNDBUFFER playBuffer; |
| 328 | /* the secondary buffer (Capture) */ |
| 329 | LPDIRECTSOUNDCAPTUREBUFFER captureBuffer; |
| 330 | |
| 331 | /* size of the directsound buffer, usually 2 seconds */ |
| 332 | int dsBufferSizeInBytes; |
| 333 | |
| 334 | /* size of the read/write-ahead, as specified by Java */ |
| 335 | int bufferSizeInBytes; |
| 336 | int bitsPerSample; |
| 337 | int frameSize; // storage size in Bytes |
| 338 | |
| 339 | UINT64 framePos; |
| 340 | /* where to write into the buffer. |
| 341 | * -1 if at current position (Playback) |
| 342 | * For Capture, this is the read position |
| 343 | */ |
| 344 | int writePos; |
| 345 | |
| 346 | /* if start() had been called */ |
| 347 | BOOL started; |
| 348 | |
| 349 | /* how many bytes there is silence from current write position */ |
| 350 | int silencedBytes; |
| 351 | |
| 352 | BOOL underrun; |
| 353 | |
| 354 | } DS_Info; |
| 355 | |
| 356 | |
| 357 | LPSTR TranslateDSError(HRESULT hr) { |
| 358 | switch(hr) { |
| 359 | case DSERR_ALLOCATED: |
| 360 | return "DSERR_ALLOCATED"; |
| 361 | |
| 362 | case DSERR_CONTROLUNAVAIL: |
| 363 | return "DSERR_CONTROLUNAVAIL"; |
| 364 | |
| 365 | case DSERR_INVALIDPARAM: |
| 366 | return "DSERR_INVALIDPARAM"; |
| 367 | |
| 368 | case DSERR_INVALIDCALL: |
| 369 | return "DSERR_INVALIDCALL"; |
| 370 | |
| 371 | case DSERR_GENERIC: |
| 372 | return "DSERR_GENERIC"; |
| 373 | |
| 374 | case DSERR_PRIOLEVELNEEDED: |
| 375 | return "DSERR_PRIOLEVELNEEDED"; |
| 376 | |
| 377 | case DSERR_OUTOFMEMORY: |
| 378 | return "DSERR_OUTOFMEMORY"; |
| 379 | |
| 380 | case DSERR_BADFORMAT: |
| 381 | return "DSERR_BADFORMAT"; |
| 382 | |
| 383 | case DSERR_UNSUPPORTED: |
| 384 | return "DSERR_UNSUPPORTED"; |
| 385 | |
| 386 | case DSERR_NODRIVER: |
| 387 | return "DSERR_NODRIVER"; |
| 388 | |
| 389 | case DSERR_ALREADYINITIALIZED: |
| 390 | return "DSERR_ALREADYINITIALIZED"; |
| 391 | |
| 392 | case DSERR_NOAGGREGATION: |
| 393 | return "DSERR_NOAGGREGATION"; |
| 394 | |
| 395 | case DSERR_BUFFERLOST: |
| 396 | return "DSERR_BUFFERLOST"; |
| 397 | |
| 398 | case DSERR_OTHERAPPHASPRIO: |
| 399 | return "DSERR_OTHERAPPHASPRIO"; |
| 400 | |
| 401 | case DSERR_UNINITIALIZED: |
| 402 | return "DSERR_UNINITIALIZED"; |
| 403 | |
| 404 | default: |
| 405 | return "Unknown HRESULT"; |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | /* |
| 410 | ** data/routines for starting DS buffers by separate thread |
| 411 | ** (joint into DS_StartBufferHelper class) |
| 412 | ** see cr6372428: playback fails after exiting from thread that has started it |
| 413 | ** due IDirectSoundBuffer8::Play() description: |
| 414 | ** http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/directx9_c |
| 415 | ** /directx/htm/idirectsoundbuffer8play.asp |
| 416 | ** (remark section): If the application is multithreaded, the thread that plays |
| 417 | ** the buffer must continue to exist as long as the buffer is playing. |
| 418 | ** Buffers created on WDM drivers stop playing when the thread is terminated. |
| 419 | ** IDirectSoundCaptureBuffer8::Start() has the same remark: |
| 420 | ** http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/directx9_c |
| 421 | ** /directx/htm/idirectsoundcapturebuffer8start.asp |
| 422 | */ |
| 423 | class DS_StartBufferHelper { |
| 424 | public: |
| 425 | /* starts DirectSound buffer (playback or capture) */ |
| 426 | static HRESULT StartBuffer(DS_Info* info); |
| 427 | /* checks for initialization success */ |
| 428 | static inline BOOL isInitialized() { return data.threadHandle != NULL; } |
| 429 | protected: |
| 430 | DS_StartBufferHelper() {} // no need to create an instance |
| 431 | |
| 432 | /* data class */ |
| 433 | class Data { |
| 434 | public: |
| 435 | Data(); |
| 436 | ~Data(); |
| 437 | // public data to access from parent class |
| 438 | CRITICAL_SECTION crit_sect; |
| 439 | volatile HANDLE threadHandle; |
| 440 | volatile HANDLE startEvent; |
| 441 | volatile HANDLE startedEvent; |
| 442 | volatile DS_Info* line2Start; |
| 443 | volatile HRESULT startResult; |
| 444 | } static data; |
| 445 | |
| 446 | /* StartThread function */ |
| 447 | static DWORD WINAPI __stdcall ThreadProc(void *param); |
| 448 | }; |
| 449 | |
| 450 | /* StartBufferHelper class implementation |
| 451 | */ |
| 452 | DS_StartBufferHelper::Data DS_StartBufferHelper::data; |
| 453 | |
| 454 | DS_StartBufferHelper::Data::Data() { |
| 455 | threadHandle = NULL; |
| 456 | ::InitializeCriticalSection(&crit_sect); |
| 457 | startEvent = ::CreateEvent(NULL, FALSE, FALSE, NULL); |
| 458 | startedEvent = ::CreateEvent(NULL, FALSE, FALSE, NULL); |
| 459 | if (startEvent != NULL && startedEvent != NULL) |
| 460 | threadHandle = ::CreateThread(NULL, 0, ThreadProc, NULL, 0, NULL); |
| 461 | } |
| 462 | |
| 463 | DS_StartBufferHelper::Data::~Data() { |
| 464 | ::EnterCriticalSection(&crit_sect); |
| 465 | if (threadHandle != NULL) { |
| 466 | // terminate thread |
| 467 | line2Start = NULL; |
| 468 | ::SetEvent(startEvent); |
| 469 | ::CloseHandle(threadHandle); |
| 470 | threadHandle = NULL; |
| 471 | } |
| 472 | ::LeaveCriticalSection(&crit_sect); |
| 473 | // won't delete startEvent/startedEvent/crit_sect |
| 474 | // - Windows will do during process shutdown |
| 475 | } |
| 476 | |
| 477 | DWORD WINAPI __stdcall DS_StartBufferHelper::ThreadProc(void *param) |
| 478 | { |
| 479 | while (1) { |
| 480 | // wait for something to do |
| 481 | ::WaitForSingleObject(data.startEvent, INFINITE); |
| 482 | if (data.line2Start == NULL) { |
| 483 | // (data.line2Start == NULL) is a signal to terminate thread |
| 484 | break; |
| 485 | } |
| 486 | if (data.line2Start->isSource) { |
| 487 | data.startResult = |
| 488 | data.line2Start->playBuffer->Play(0, 0, DSCBSTART_LOOPING); |
| 489 | } else { |
| 490 | data.startResult = |
| 491 | data.line2Start->captureBuffer->Start(DSCBSTART_LOOPING); |
| 492 | } |
| 493 | ::SetEvent(data.startedEvent); |
| 494 | } |
| 495 | return 0; |
| 496 | } |
| 497 | |
| 498 | HRESULT DS_StartBufferHelper::StartBuffer(DS_Info* info) { |
| 499 | HRESULT hr; |
| 500 | ::EnterCriticalSection(&data.crit_sect); |
| 501 | if (!isInitialized()) { |
| 502 | ::LeaveCriticalSection(&data.crit_sect); |
| 503 | return E_FAIL; |
| 504 | } |
| 505 | data.line2Start = info; |
| 506 | ::SetEvent(data.startEvent); |
| 507 | ::WaitForSingleObject(data.startedEvent, INFINITE); |
| 508 | hr = data.startResult; |
| 509 | ::LeaveCriticalSection(&data.crit_sect); |
| 510 | return hr; |
| 511 | } |
| 512 | |
| 513 | |
| 514 | /* helper routines for DS buffer positions */ |
| 515 | /* returns distance from pos1 to pos2 |
| 516 | */ |
| 517 | inline int DS_getDistance(DS_Info* info, int pos1, int pos2) { |
| 518 | int distance = pos2 - pos1; |
| 519 | while (distance < 0) |
| 520 | distance += info->dsBufferSizeInBytes; |
| 521 | return distance; |
| 522 | } |
| 523 | |
| 524 | /* adds 2 positions |
| 525 | */ |
| 526 | inline int DS_addPos(DS_Info* info, int pos1, int pos2) { |
| 527 | int result = pos1 + pos2; |
| 528 | while (result >= info->dsBufferSizeInBytes) |
| 529 | result -= info->dsBufferSizeInBytes; |
| 530 | return result; |
| 531 | } |
| 532 | |
| 533 | |
| 534 | BOOL DS_addDeviceRef(INT32 deviceID) { |
| 535 | HWND ownerWindow; |
| 536 | HRESULT res = DS_OK; |
| 537 | LPDIRECTSOUND devPlay; |
| 538 | LPDIRECTSOUNDCAPTURE devCapture; |
| 539 | LPGUID lpGuid = NULL; |
| 540 | |
| 541 | |
| 542 | if (g_audioDeviceCache[deviceID].dev == NULL) { |
| 543 | /* Create DirectSound */ |
| 544 | TRACE1("Creating DirectSound object for device %d\n", deviceID); |
| 545 | lpGuid = &(g_audioDeviceCache[deviceID].guid); |
| 546 | if (isEqualGUID(lpGuid, NULL)) { |
| 547 | lpGuid = NULL; |
| 548 | } |
| 549 | if (g_audioDeviceCache[deviceID].isSource) { |
| 550 | res = DirectSoundCreate(lpGuid, &devPlay, NULL); |
| 551 | g_audioDeviceCache[deviceID].dev = (void*) devPlay; |
| 552 | } else { |
| 553 | res = DirectSoundCaptureCreate(lpGuid, &devCapture, NULL); |
| 554 | g_audioDeviceCache[deviceID].dev = (void*) devCapture; |
| 555 | } |
| 556 | g_audioDeviceCache[deviceID].refCount = 0; |
| 557 | if (FAILED(res)) { |
| 558 | ERROR1("DAUDIO_Open: ERROR: Failed to create DirectSound: %s", TranslateDSError(res)); |
| 559 | g_audioDeviceCache[deviceID].dev = NULL; |
| 560 | return FALSE; |
| 561 | } |
| 562 | if (g_audioDeviceCache[deviceID].isSource) { |
| 563 | ownerWindow = GetForegroundWindow(); |
| 564 | if (ownerWindow == NULL) { |
| 565 | ownerWindow = GetDesktopWindow(); |
| 566 | } |
| 567 | TRACE0("DAUDIO_Open: Setting cooperative level\n"); |
| 568 | res = devPlay->SetCooperativeLevel(ownerWindow, DSSCL_NORMAL); |
| 569 | if (FAILED(res)) { |
| 570 | ERROR1("DAUDIO_Open: ERROR: Failed to set cooperative level: %s", TranslateDSError(res)); |
| 571 | return FALSE; |
| 572 | } |
| 573 | } |
| 574 | } |
| 575 | g_audioDeviceCache[deviceID].refCount++; |
| 576 | return TRUE; |
| 577 | } |
| 578 | |
| 579 | #define DEV_PLAY(devID) ((LPDIRECTSOUND) g_audioDeviceCache[devID].dev) |
| 580 | #define DEV_CAPTURE(devID) ((LPDIRECTSOUNDCAPTURE) g_audioDeviceCache[devID].dev) |
| 581 | |
| 582 | void DS_removeDeviceRef(INT32 deviceID) { |
| 583 | |
| 584 | if (g_audioDeviceCache[deviceID].refCount) { |
| 585 | g_audioDeviceCache[deviceID].refCount--; |
| 586 | } |
| 587 | if (g_audioDeviceCache[deviceID].refCount == 0) { |
| 588 | if (g_audioDeviceCache[deviceID].dev != NULL) { |
| 589 | if (g_audioDeviceCache[deviceID].isSource) { |
| 590 | DEV_PLAY(deviceID)->Release(); |
| 591 | } else { |
| 592 | DEV_CAPTURE(deviceID)->Release(); |
| 593 | } |
| 594 | g_audioDeviceCache[deviceID].dev = NULL; |
| 595 | } |
| 596 | } |
| 597 | } |
| 598 | |
| 599 | #ifndef _WAVEFORMATEXTENSIBLE_ |
| 600 | #define _WAVEFORMATEXTENSIBLE_ |
| 601 | typedef struct { |
| 602 | WAVEFORMATEX Format; |
| 603 | union { |
| 604 | WORD wValidBitsPerSample; /* bits of precision */ |
| 605 | WORD wSamplesPerBlock; /* valid if wBitsPerSample==0 */ |
| 606 | WORD wReserved; /* If neither applies, set to zero. */ |
| 607 | } Samples; |
| 608 | DWORD dwChannelMask; /* which channels are */ |
| 609 | /* present in stream */ |
| 610 | GUID SubFormat; |
| 611 | } WAVEFORMATEXTENSIBLE, *PWAVEFORMATEXTENSIBLE; |
| 612 | #endif // !_WAVEFORMATEXTENSIBLE_ |
| 613 | |
| 614 | #if !defined(WAVE_FORMAT_EXTENSIBLE) |
| 615 | #define WAVE_FORMAT_EXTENSIBLE 0xFFFE |
| 616 | #endif // !defined(WAVE_FORMAT_EXTENSIBLE) |
| 617 | |
| 618 | #if !defined(DEFINE_WAVEFORMATEX_GUID) |
| 619 | #define DEFINE_WAVEFORMATEX_GUID(x) (USHORT)(x), 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 |
| 620 | #endif |
| 621 | #ifndef STATIC_KSDATAFORMAT_SUBTYPE_PCM |
| 622 | #define STATIC_KSDATAFORMAT_SUBTYPE_PCM\ |
| 623 | DEFINE_WAVEFORMATEX_GUID(WAVE_FORMAT_PCM) |
| 624 | #endif |
| 625 | |
| 626 | |
| 627 | void createWaveFormat(WAVEFORMATEXTENSIBLE* format, |
| 628 | int sampleRate, |
| 629 | int channels, |
| 630 | int bits, |
| 631 | int significantBits) { |
| 632 | GUID subtypePCM = {STATIC_KSDATAFORMAT_SUBTYPE_PCM}; |
| 633 | format->Format.nSamplesPerSec = (DWORD)sampleRate; |
| 634 | format->Format.nChannels = (WORD) channels; |
| 635 | /* do not support useless padding, like 24-bit samples stored in 32-bit containers */ |
| 636 | format->Format.wBitsPerSample = (WORD) ((bits + 7) & 0xFFF8); |
| 637 | |
| 638 | if (channels <= 2 && bits <= 16) { |
| 639 | format->Format.wFormatTag = WAVE_FORMAT_PCM; |
| 640 | format->Format.cbSize = 0; |
| 641 | } else { |
| 642 | format->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE; |
| 643 | format->Format.cbSize = 22; |
| 644 | format->Samples.wValidBitsPerSample = bits; |
| 645 | /* no way to specify speaker locations */ |
| 646 | format->dwChannelMask = 0xFFFFFFFF; |
| 647 | format->SubFormat = subtypePCM; |
| 648 | } |
| 649 | format->Format.nBlockAlign = (WORD)((format->Format.wBitsPerSample * format->Format.nChannels) / 8); |
| 650 | format->Format.nAvgBytesPerSec = format->Format.nSamplesPerSec * format->Format.nBlockAlign; |
| 651 | } |
| 652 | |
| 653 | /* fill buffer with silence |
| 654 | */ |
| 655 | void DS_clearBuffer(DS_Info* info, BOOL fromWritePos) { |
| 656 | UBYTE* pb1=NULL, *pb2=NULL; |
| 657 | DWORD cb1=0, cb2=0; |
| 658 | DWORD flags = 0; |
| 659 | int start, count; |
| 660 | TRACE1("> DS_clearBuffer for device %d\n", info->deviceID); |
| 661 | if (info->isSource) { |
| 662 | if (fromWritePos) { |
| 663 | DWORD playCursor, writeCursor; |
| 664 | int end; |
| 665 | if (FAILED(info->playBuffer->GetCurrentPosition(&playCursor, &writeCursor))) { |
| 666 | ERROR0(" DS_clearBuffer: ERROR: Failed to get current position."); |
| 667 | TRACE0("< DS_clearbuffer\n"); |
| 668 | return; |
| 669 | } |
| 670 | DEBUG_SILENCING2(" DS_clearBuffer: DS playPos=%d myWritePos=%d", (int) playCursor, (int) info->writePos); |
| 671 | if (info->writePos >= 0) { |
| 672 | start = info->writePos + info->silencedBytes; |
| 673 | } else { |
| 674 | start = writeCursor + info->silencedBytes; |
| 675 | //flags |= DSBLOCK_FROMWRITECURSOR; |
| 676 | } |
| 677 | while (start >= info->dsBufferSizeInBytes) { |
| 678 | start -= info->dsBufferSizeInBytes; |
| 679 | } |
| 680 | |
| 681 | // fix for bug 6251460 (REGRESSION: short sounds do not play) |
| 682 | // for unknown reason with hardware DS buffer playCursor sometimes |
| 683 | // jumps back for little interval (mostly 2-8 bytes) (writeCursor moves forward as usual) |
| 684 | // The issue happens right after start playing and for short sounds only (less then DS buffer, |
| 685 | // when whole sound written into the buffer and remaining space filled by silence) |
| 686 | // the case doesn't produce any audible aftifacts so just catch it to prevent filling |
| 687 | // whole buffer by silence. |
| 688 | if (((int)playCursor <= start && start < (int)writeCursor) |
| 689 | || (writeCursor < playCursor // buffer bound is between playCursor & writeCursor |
| 690 | && (start < (int)writeCursor || (int)playCursor <= start))) { |
| 691 | return; |
| 692 | } |
| 693 | |
| 694 | count = info->dsBufferSizeInBytes - info->silencedBytes; |
| 695 | // why / 4? |
| 696 | //if (count > info->dsBufferSizeInBytes / 4) { |
| 697 | // count = info->dsBufferSizeInBytes / 4; |
| 698 | //} |
| 699 | end = start + count; |
| 700 | if ((int) playCursor < start) { |
| 701 | playCursor += (DWORD) info->dsBufferSizeInBytes; |
| 702 | } |
| 703 | if (start <= (int) playCursor && end > (int) playCursor) { |
| 704 | /* at maximum, silence until play cursor */ |
| 705 | count = (int) playCursor - start; |
| 706 | #ifdef USE_TRACE |
| 707 | if ((int) playCursor >= info->dsBufferSizeInBytes) playCursor -= (DWORD) info->dsBufferSizeInBytes; |
| 708 | TRACE3("\n DS_clearBuffer: Start Writing from %d, " |
| 709 | "would overwrite playCursor=%d, so reduce count to %d\n", |
| 710 | start, playCursor, count); |
| 711 | #endif |
| 712 | } |
| 713 | DEBUG_SILENCING2(" clearing buffer from %d, count=%d. ", (int)start, (int) count); |
| 714 | if (count <= 0) { |
| 715 | DEBUG_SILENCING0("\n"); |
| 716 | TRACE1("< DS_clearBuffer: no need to clear, silencedBytes=%d\n", info->silencedBytes); |
| 717 | return; |
| 718 | } |
| 719 | } else { |
| 720 | start = 0; |
| 721 | count = info->dsBufferSizeInBytes; |
| 722 | flags |= DSBLOCK_ENTIREBUFFER; |
| 723 | } |
| 724 | if (FAILED(info->playBuffer->Lock(start, |
| 725 | count, |
| 726 | (LPVOID*) &pb1, &cb1, |
| 727 | (LPVOID*) &pb2, &cb2, flags))) { |
| 728 | ERROR0("\n DS_clearBuffer: ERROR: Failed to lock sound buffer.\n"); |
| 729 | TRACE0("< DS_clearbuffer\n"); |
| 730 | return; |
| 731 | } |
| 732 | } else { |
| 733 | if (FAILED(info->captureBuffer->Lock(0, |
| 734 | info->dsBufferSizeInBytes, |
| 735 | (LPVOID*) &pb1, &cb1, |
| 736 | (LPVOID*) &pb2, &cb2, DSCBLOCK_ENTIREBUFFER))) { |
| 737 | ERROR0(" DS_clearBuffer: ERROR: Failed to lock sound buffer.\n"); |
| 738 | TRACE0("< DS_clearbuffer\n"); |
| 739 | return; |
| 740 | } |
| 741 | } |
| 742 | if (pb1!=NULL) { |
| 743 | memset(pb1, (info->bitsPerSample == 8)?128:0, cb1); |
| 744 | } |
| 745 | if (pb2!=NULL) { |
| 746 | memset(pb2, (info->bitsPerSample == 8)?128:0, cb2); |
| 747 | } |
| 748 | if (info->isSource) { |
| 749 | info->playBuffer->Unlock( pb1, cb1, pb2, cb2 ); |
| 750 | if (!fromWritePos) { |
| 751 | /* doesn't matter where to start writing next time */ |
| 752 | info->writePos = -1; |
| 753 | info->silencedBytes = info->dsBufferSizeInBytes; |
| 754 | } else { |
| 755 | info->silencedBytes += (cb1+cb2); |
| 756 | if (info->silencedBytes > info->dsBufferSizeInBytes) { |
| 757 | ERROR1(" DS_clearbuffer: ERROR: silencedBytes=%d exceeds buffer size!\n", |
| 758 | info->silencedBytes); |
| 759 | info->silencedBytes = info->dsBufferSizeInBytes; |
| 760 | } |
| 761 | } |
| 762 | DEBUG_SILENCING2(" silencedBytes=%d, my writePos=%d\n", (int)info->silencedBytes, (int)info->writePos); |
| 763 | } else { |
| 764 | info->captureBuffer->Unlock( pb1, cb1, pb2, cb2 ); |
| 765 | } |
| 766 | TRACE0("< DS_clearbuffer\n"); |
| 767 | } |
| 768 | |
| 769 | /* returns pointer to buffer */ |
| 770 | void* DS_createSoundBuffer(DS_Info* info, |
| 771 | float sampleRate, |
| 772 | int sampleSizeInBits, |
| 773 | int channels, |
| 774 | int bufferSizeInBytes) { |
| 775 | DSBUFFERDESC dsbdesc; |
| 776 | DSCBUFFERDESC dscbdesc; |
| 777 | HRESULT res; |
| 778 | WAVEFORMATEXTENSIBLE format; |
| 779 | void* buffer; |
| 780 | |
| 781 | TRACE1("Creating secondary buffer for device %d\n", info->deviceID); |
| 782 | createWaveFormat(&format, |
| 783 | (int) sampleRate, |
| 784 | channels, |
| 785 | info->frameSize / channels * 8, |
| 786 | sampleSizeInBits); |
| 787 | |
| 788 | /* 2 second secondary buffer */ |
| 789 | info->dsBufferSizeInBytes = 2 * ((int) sampleRate) * info->frameSize; |
| 790 | |
| 791 | if (bufferSizeInBytes > info->dsBufferSizeInBytes / 2) { |
| 792 | bufferSizeInBytes = info->dsBufferSizeInBytes / 2; |
| 793 | } |
| 794 | bufferSizeInBytes = (bufferSizeInBytes / info->frameSize) * info->frameSize; |
| 795 | info->bufferSizeInBytes = bufferSizeInBytes; |
| 796 | |
| 797 | if (info->isSource) { |
| 798 | memset(&dsbdesc, 0, sizeof(DSBUFFERDESC)); |
| 799 | dsbdesc.dwSize = sizeof(DSBUFFERDESC); |
| 800 | dsbdesc.dwFlags = DSBCAPS_GETCURRENTPOSITION2 |
| 801 | | DSBCAPS_GLOBALFOCUS; |
| 802 | |
| 803 | dsbdesc.dwBufferBytes = info->dsBufferSizeInBytes; |
| 804 | dsbdesc.lpwfxFormat = (WAVEFORMATEX*) &format; |
| 805 | res = DEV_PLAY(info->deviceID)->CreateSoundBuffer |
| 806 | (&dsbdesc, (LPDIRECTSOUNDBUFFER*) &buffer, NULL); |
| 807 | } else { |
| 808 | memset(&dscbdesc, 0, sizeof(DSCBUFFERDESC)); |
| 809 | dscbdesc.dwSize = sizeof(DSCBUFFERDESC); |
| 810 | dscbdesc.dwFlags = 0; |
| 811 | dscbdesc.dwBufferBytes = info->dsBufferSizeInBytes; |
| 812 | dscbdesc.lpwfxFormat = (WAVEFORMATEX*) &format; |
| 813 | res = DEV_CAPTURE(info->deviceID)->CreateCaptureBuffer |
| 814 | (&dscbdesc, (LPDIRECTSOUNDCAPTUREBUFFER*) &buffer, NULL); |
| 815 | } |
| 816 | if (FAILED(res)) { |
| 817 | ERROR1("DS_createSoundBuffer: ERROR: Failed to create sound buffer: %s", TranslateDSError(res)); |
| 818 | return NULL; |
| 819 | } |
| 820 | return buffer; |
| 821 | } |
| 822 | |
| 823 | void DS_destroySoundBuffer(DS_Info* info) { |
| 824 | if (info->playBuffer != NULL) { |
| 825 | info->playBuffer->Release(); |
| 826 | info->playBuffer = NULL; |
| 827 | } |
| 828 | if (info->captureBuffer != NULL) { |
| 829 | info->captureBuffer->Release(); |
| 830 | info->captureBuffer = NULL; |
| 831 | } |
| 832 | } |
| 833 | |
| 834 | |
| 835 | void* DAUDIO_Open(INT32 mixerIndex, INT32 deviceID, int isSource, |
| 836 | int encoding, float sampleRate, int sampleSizeInBits, |
| 837 | int frameSize, int channels, |
| 838 | int isSigned, int isBigEndian, int bufferSizeInBytes) { |
| 839 | |
| 840 | DS_Info* info; |
| 841 | void* buffer; |
| 842 | |
| 843 | TRACE0("> DAUDIO_Open\n"); |
| 844 | |
| 845 | /* some sanity checks */ |
| 846 | if (deviceID >= g_cacheCount) { |
| 847 | ERROR1("DAUDIO_Open: ERROR: cannot open the device with deviceID=%d!\n", deviceID); |
| 848 | return NULL; |
| 849 | } |
| 850 | if ((g_audioDeviceCache[deviceID].isSource && !isSource) |
| 851 | || (!g_audioDeviceCache[deviceID].isSource && isSource)) { |
| 852 | /* only support Playback or Capture */ |
| 853 | ERROR0("DAUDIO_Open: ERROR: Cache is corrupt: cannot open the device in specified isSource mode!\n"); |
| 854 | return NULL; |
| 855 | } |
| 856 | if (encoding != DAUDIO_PCM) { |
| 857 | ERROR1("DAUDIO_Open: ERROR: cannot open the device with encoding=%d!\n", encoding); |
| 858 | return NULL; |
| 859 | } |
| 860 | if (sampleSizeInBits > 8 && |
| 861 | #ifdef _LITTLE_ENDIAN |
| 862 | isBigEndian |
| 863 | #else |
| 864 | !isBigEndian |
| 865 | #endif |
| 866 | ) { |
| 867 | ERROR1("DAUDIO_Open: ERROR: wrong endianness: isBigEndian==%d!\n", isBigEndian); |
| 868 | return NULL; |
| 869 | } |
| 870 | if (sampleSizeInBits == 8 && isSigned) { |
| 871 | ERROR0("DAUDIO_Open: ERROR: wrong signed'ness: with 8 bits, data must be unsigned!\n"); |
| 872 | return NULL; |
| 873 | } |
| 874 | if (!DS_StartBufferHelper::isInitialized()) { |
| 875 | ERROR0("DAUDIO_Open: ERROR: StartBufferHelper initialization was failed!\n"); |
| 876 | return NULL; |
| 877 | } |
| 878 | |
| 879 | info = (DS_Info*) malloc(sizeof(DS_Info)); |
| 880 | if (!info) { |
| 881 | ERROR0("DAUDIO_Open: ERROR: Out of memory\n"); |
| 882 | return NULL; |
| 883 | } |
| 884 | memset(info, 0, sizeof(DS_Info)); |
| 885 | |
| 886 | info->deviceID = deviceID; |
| 887 | info->isSource = isSource; |
| 888 | info->bitsPerSample = sampleSizeInBits; |
| 889 | info->frameSize = frameSize; |
| 890 | info->framePos = 0; |
| 891 | info->started = FALSE; |
| 892 | info->underrun = FALSE; |
| 893 | |
| 894 | if (!DS_addDeviceRef(deviceID)) { |
| 895 | DS_removeDeviceRef(deviceID); |
| 896 | free(info); |
| 897 | return NULL; |
| 898 | } |
| 899 | |
| 900 | buffer = DS_createSoundBuffer(info, |
| 901 | sampleRate, |
| 902 | sampleSizeInBits, |
| 903 | channels, |
| 904 | bufferSizeInBytes); |
| 905 | if (!buffer) { |
| 906 | DS_removeDeviceRef(deviceID); |
| 907 | free(info); |
| 908 | return NULL; |
| 909 | } |
| 910 | |
| 911 | if (info->isSource) { |
| 912 | info->playBuffer = (LPDIRECTSOUNDBUFFER) buffer; |
| 913 | } else { |
| 914 | info->captureBuffer = (LPDIRECTSOUNDCAPTUREBUFFER) buffer; |
| 915 | } |
| 916 | DS_clearBuffer(info, FALSE /* entire buffer */); |
| 917 | |
| 918 | /* use writepos of device */ |
| 919 | if (info->isSource) { |
| 920 | info->writePos = -1; |
| 921 | } else { |
| 922 | info->writePos = 0; |
| 923 | } |
| 924 | |
| 925 | TRACE0("< DAUDIO_Open: Opened device successfully.\n"); |
| 926 | return (void*) info; |
| 927 | } |
| 928 | |
| 929 | int DAUDIO_Start(void* id, int isSource) { |
| 930 | DS_Info* info = (DS_Info*) id; |
| 931 | HRESULT res = DS_OK; |
| 932 | DWORD status; |
| 933 | |
| 934 | TRACE0("> DAUDIO_Start\n"); |
| 935 | |
| 936 | if (info->isSource) { |
| 937 | res = info->playBuffer->GetStatus(&status); |
| 938 | if (res == DS_OK) { |
| 939 | if (status & DSBSTATUS_LOOPING) { |
| 940 | ERROR0("DAUDIO_Start: ERROR: Already started!"); |
| 941 | return TRUE; |
| 942 | } |
| 943 | |
| 944 | /* only start buffer if already something written to it */ |
| 945 | if (info->writePos >= 0) { |
| 946 | res = DS_StartBufferHelper::StartBuffer(info); |
| 947 | if (res == DSERR_BUFFERLOST) { |
| 948 | res = info->playBuffer->Restore(); |
| 949 | if (res == DS_OK) { |
| 950 | DS_clearBuffer(info, FALSE /* entire buffer */); |
| 951 | /* write() will trigger actual device start */ |
| 952 | } |
| 953 | } else { |
| 954 | /* make sure that we will have silence after |
| 955 | the currently valid audio data */ |
| 956 | DS_clearBuffer(info, TRUE /* from write position */); |
| 957 | } |
| 958 | } |
| 959 | } |
| 960 | } else { |
| 961 | if (info->captureBuffer->GetStatus(&status) == DS_OK) { |
| 962 | if (status & DSCBSTATUS_LOOPING) { |
| 963 | ERROR0("DAUDIO_Start: ERROR: Already started!"); |
| 964 | return TRUE; |
| 965 | } |
| 966 | } |
| 967 | res = DS_StartBufferHelper::StartBuffer(info); |
| 968 | } |
| 969 | if (FAILED(res)) { |
| 970 | ERROR1("DAUDIO_Start: ERROR: Failed to start: %s", TranslateDSError(res)); |
| 971 | return FALSE; |
| 972 | } |
| 973 | info->started = TRUE; |
| 974 | return TRUE; |
| 975 | } |
| 976 | |
| 977 | int DAUDIO_Stop(void* id, int isSource) { |
| 978 | DS_Info* info = (DS_Info*) id; |
| 979 | |
| 980 | TRACE0("> DAUDIO_Stop\n"); |
| 981 | |
| 982 | info->started = FALSE; |
| 983 | if (info->isSource) { |
| 984 | info->playBuffer->Stop(); |
| 985 | } else { |
| 986 | info->captureBuffer->Stop(); |
| 987 | } |
| 988 | |
| 989 | TRACE0("< DAUDIO_Stop\n"); |
| 990 | return TRUE; |
| 991 | } |
| 992 | |
| 993 | |
| 994 | void DAUDIO_Close(void* id, int isSource) { |
| 995 | DS_Info* info = (DS_Info*) id; |
| 996 | |
| 997 | TRACE0("DAUDIO_Close\n"); |
| 998 | |
| 999 | if (info != NULL) { |
| 1000 | DS_destroySoundBuffer(info); |
| 1001 | DS_removeDeviceRef(info->deviceID); |
| 1002 | free(info); |
| 1003 | } |
| 1004 | } |
| 1005 | |
| 1006 | /* Check buffer for underrun |
| 1007 | * This method is only meaningful for Output devices (write devices). |
| 1008 | */ |
| 1009 | void DS_CheckUnderrun(DS_Info* info, DWORD playCursor, DWORD writeCursor) { |
| 1010 | TRACE5("DS_CheckUnderrun: playCursor=%d, writeCursor=%d, " |
| 1011 | "info->writePos=%d silencedBytes=%d dsBufferSizeInBytes=%d\n", |
| 1012 | (int) playCursor, (int) writeCursor, (int) info->writePos, |
| 1013 | (int) info->silencedBytes, (int) info->dsBufferSizeInBytes); |
| 1014 | if (info->underrun || info->writePos < 0) return; |
| 1015 | int writeAhead = DS_getDistance(info, writeCursor, info->writePos); |
| 1016 | if (writeAhead > info->bufferSizeInBytes) { |
| 1017 | // this may occur after Stop(), when writeCursor decreases (real valid data size > bufferSizeInBytes) |
| 1018 | // But the case can occur only when we have more then info->bufferSizeInBytes valid bytes |
| 1019 | // (and less then (info->dsBufferSizeInBytes - info->bufferSizeInBytes) silenced bytes) |
| 1020 | // If we already have a lot of silencedBytes after valid data (written by |
| 1021 | // DAUDIO_StillDraining() or DAUDIO_Service()) then it's underrun |
| 1022 | if (info->silencedBytes >= info->dsBufferSizeInBytes - info->bufferSizeInBytes) { |
| 1023 | // underrun! |
| 1024 | ERROR0("DS_CheckUnderrun: ERROR: underrun detected!\n"); |
| 1025 | info->underrun = TRUE; |
| 1026 | } |
| 1027 | } |
| 1028 | } |
| 1029 | |
| 1030 | /* For source (playback) line: |
| 1031 | * (a) if (fromPlayCursor == FALSE), returns number of bytes available |
| 1032 | * for writing: bufferSize - (info->writePos - writeCursor); |
| 1033 | * (b) if (fromPlayCursor == TRUE), playCursor is used instead writeCursor |
| 1034 | * and returned value can be used for play position calculation (see also |
| 1035 | * note about bufferSize) |
| 1036 | * For destination (capture) line: |
| 1037 | * (c) if (fromPlayCursor == FALSE), returns number of bytes available |
| 1038 | * for reading from the buffer: readCursor - info->writePos; |
| 1039 | * (d) if (fromPlayCursor == TRUE), captureCursor is used instead readCursor |
| 1040 | * and returned value can be used for capture position calculation (see |
| 1041 | * note about bufferSize) |
| 1042 | * bufferSize parameter are filled by "actual" buffer size: |
| 1043 | * if (fromPlayCursor == FALSE), bufferSize = info->bufferSizeInBytes |
| 1044 | * otherwise it increase by number of bytes currently processed by DirectSound |
| 1045 | * (writeCursor - playCursor) or (captureCursor - readCursor) |
| 1046 | */ |
| 1047 | int DS_GetAvailable(DS_Info* info, |
| 1048 | DWORD* playCursor, DWORD* writeCursor, |
| 1049 | int* bufferSize, BOOL fromPlayCursor) { |
| 1050 | int available; |
| 1051 | int newReadPos; |
| 1052 | |
| 1053 | TRACE2("DS_GetAvailable: fromPlayCursor=%d, deviceID=%d\n", fromPlayCursor, info->deviceID); |
| 1054 | if (!info->playBuffer && !info->captureBuffer) { |
| 1055 | ERROR0("DS_GetAvailable: ERROR: buffer not yet created"); |
| 1056 | return 0; |
| 1057 | } |
| 1058 | |
| 1059 | if (info->isSource) { |
| 1060 | if (FAILED(info->playBuffer->GetCurrentPosition(playCursor, writeCursor))) { |
| 1061 | ERROR0("DS_GetAvailable: ERROR: Failed to get current position.\n"); |
| 1062 | return 0; |
| 1063 | } |
| 1064 | int processing = DS_getDistance(info, (int)*playCursor, (int)*writeCursor); |
| 1065 | // workaround: sometimes DirectSound report writeCursor is less (for several bytes) then playCursor |
| 1066 | if (processing > info->dsBufferSizeInBytes / 2) { |
| 1067 | *writeCursor = *playCursor; |
| 1068 | processing = 0; |
| 1069 | } |
| 1070 | TRACE3(" playCursor=%d, writeCursor=%d, info->writePos=%d\n", |
| 1071 | *playCursor, *writeCursor, info->writePos); |
| 1072 | *bufferSize = info->bufferSizeInBytes; |
| 1073 | if (fromPlayCursor) { |
| 1074 | *bufferSize += processing; |
| 1075 | } |
| 1076 | DS_CheckUnderrun(info, *playCursor, *writeCursor); |
| 1077 | if (info->writePos == -1 || (info->underrun && !fromPlayCursor)) { |
| 1078 | /* always full buffer if at beginning */ |
| 1079 | available = *bufferSize; |
| 1080 | } else { |
| 1081 | int currWriteAhead = DS_getDistance(info, fromPlayCursor ? (int)*playCursor : (int)*writeCursor, info->writePos); |
| 1082 | if (currWriteAhead > *bufferSize) { |
| 1083 | if (info->underrun) { |
| 1084 | // playCursor surpassed writePos - no valid data, whole buffer available |
| 1085 | available = *bufferSize; |
| 1086 | } else { |
| 1087 | // the case may occur after stop(), when writeCursor jumps back to playCursor |
| 1088 | // so "actual" buffer size has grown |
| 1089 | *bufferSize = currWriteAhead; |
| 1090 | available = 0; |
| 1091 | } |
| 1092 | } else { |
| 1093 | available = *bufferSize - currWriteAhead; |
| 1094 | } |
| 1095 | } |
| 1096 | } else { |
| 1097 | if (FAILED(info->captureBuffer->GetCurrentPosition(playCursor, writeCursor))) { |
| 1098 | ERROR0("DS_GetAvailable: ERROR: Failed to get current position.\n"); |
| 1099 | return 0; |
| 1100 | } |
| 1101 | *bufferSize = info->bufferSizeInBytes; |
| 1102 | if (fromPlayCursor) { |
| 1103 | *bufferSize += DS_getDistance(info, (int)*playCursor, (int)*writeCursor); |
| 1104 | } |
| 1105 | TRACE4(" captureCursor=%d, readCursor=%d, info->readPos=%d refBufferSize=%d\n", |
| 1106 | *playCursor, *writeCursor, info->writePos, *bufferSize); |
| 1107 | if (info->writePos == -1) { |
| 1108 | /* always empty buffer if at beginning */ |
| 1109 | info->writePos = (int) (*writeCursor); |
| 1110 | } |
| 1111 | if (fromPlayCursor) { |
| 1112 | available = ((int) (*playCursor) - info->writePos); |
| 1113 | } else { |
| 1114 | available = ((int) (*writeCursor) - info->writePos); |
| 1115 | } |
| 1116 | if (available < 0) { |
| 1117 | available += info->dsBufferSizeInBytes; |
| 1118 | } |
| 1119 | if (!fromPlayCursor && available > info->bufferSizeInBytes) { |
| 1120 | /* overflow */ |
| 1121 | ERROR2("DS_GetAvailable: ERROR: overflow detected: " |
| 1122 | "DirectSoundBufferSize=%d, bufferSize=%d, ", |
| 1123 | info->dsBufferSizeInBytes, info->bufferSizeInBytes); |
| 1124 | ERROR3("captureCursor=%d, readCursor=%d, info->readPos=%d\n", |
| 1125 | *playCursor, *writeCursor, info->writePos); |
| 1126 | /* advance read position, to allow exactly one buffer worth of data */ |
| 1127 | newReadPos = (int) (*writeCursor) - info->bufferSizeInBytes; |
| 1128 | if (newReadPos < 0) { |
| 1129 | newReadPos += info->dsBufferSizeInBytes; |
| 1130 | } |
| 1131 | info->writePos = newReadPos; |
| 1132 | available = info->bufferSizeInBytes; |
| 1133 | } |
| 1134 | } |
| 1135 | available = (available / info->frameSize) * info->frameSize; |
| 1136 | |
| 1137 | TRACE1("DS_available: Returning %d available bytes\n", (int) available); |
| 1138 | return available; |
| 1139 | } |
| 1140 | |
| 1141 | // returns -1 on error, otherwise bytes written |
| 1142 | int DAUDIO_Write(void* id, char* data, int byteSize) { |
| 1143 | DS_Info* info = (DS_Info*) id; |
| 1144 | int available; |
| 1145 | int thisWritePos; |
| 1146 | DWORD playCursor, writeCursor; |
| 1147 | HRESULT res; |
| 1148 | void* buffer1, *buffer2; |
| 1149 | DWORD buffer1len, buffer2len; |
| 1150 | BOOL needRestart = FALSE; |
| 1151 | int bufferLostTrials = 2; |
| 1152 | int bufferSize; |
| 1153 | |
| 1154 | TRACE1("> DAUDIO_Write %d bytes\n", byteSize); |
| 1155 | |
| 1156 | while (--bufferLostTrials > 0) { |
| 1157 | available = DS_GetAvailable(info, &playCursor, &writeCursor, &bufferSize, FALSE /* fromPlayCursor */); |
| 1158 | if (byteSize > available) byteSize = available; |
| 1159 | if (byteSize == 0) break; |
| 1160 | thisWritePos = info->writePos; |
| 1161 | if (thisWritePos == -1 || info->underrun) { |
| 1162 | // play from current write cursor after flush, etc. |
| 1163 | needRestart = TRUE; |
| 1164 | thisWritePos = writeCursor; |
| 1165 | info->underrun = FALSE; |
| 1166 | } |
| 1167 | DEBUG_SILENCING2("DAUDIO_Write: writing from %d, count=%d\n", (int) thisWritePos, (int) byteSize); |
| 1168 | res = info->playBuffer->Lock(thisWritePos, byteSize, |
| 1169 | (LPVOID *) &buffer1, &buffer1len, |
| 1170 | (LPVOID *) &buffer2, &buffer2len, |
| 1171 | 0); |
| 1172 | if (res != DS_OK) { |
| 1173 | /* some DS failure */ |
| 1174 | if (res == DSERR_BUFFERLOST) { |
| 1175 | ERROR0("DAUDIO_write: ERROR: Restoring lost Buffer."); |
| 1176 | if (info->playBuffer->Restore() == DS_OK) { |
| 1177 | DS_clearBuffer(info, FALSE /* entire buffer */); |
| 1178 | info->writePos = -1; |
| 1179 | /* try again */ |
| 1180 | continue; |
| 1181 | } |
| 1182 | } |
| 1183 | /* can't recover from error */ |
| 1184 | byteSize = 0; |
| 1185 | break; |
| 1186 | } |
| 1187 | /* buffer could be locked successfully */ |
| 1188 | /* first fill first buffer */ |
| 1189 | if (buffer1) { |
| 1190 | memcpy(buffer1, data, buffer1len); |
| 1191 | data = (char*) (((UINT_PTR) data) + buffer1len); |
| 1192 | } else buffer1len = 0; |
| 1193 | if (buffer2) { |
| 1194 | memcpy(buffer2, data, buffer2len); |
| 1195 | } else buffer2len = 0; |
| 1196 | byteSize = buffer1len + buffer2len; |
| 1197 | |
| 1198 | /* update next write pos */ |
| 1199 | thisWritePos += byteSize; |
| 1200 | while (thisWritePos >= info->dsBufferSizeInBytes) { |
| 1201 | thisWritePos -= info->dsBufferSizeInBytes; |
| 1202 | } |
| 1203 | /* commit data to directsound */ |
| 1204 | info->playBuffer->Unlock(buffer1, buffer1len, buffer2, buffer2len); |
| 1205 | |
| 1206 | info->writePos = thisWritePos; |
| 1207 | |
| 1208 | /* update position |
| 1209 | * must be AFTER updating writePos, |
| 1210 | * so that getSvailable doesn't return too little, |
| 1211 | * so that getFramePos doesn't jump |
| 1212 | */ |
| 1213 | info->framePos += (byteSize / info->frameSize); |
| 1214 | |
| 1215 | /* decrease silenced bytes */ |
| 1216 | if (info->silencedBytes > byteSize) { |
| 1217 | info->silencedBytes -= byteSize; |
| 1218 | } else { |
| 1219 | info->silencedBytes = 0; |
| 1220 | } |
| 1221 | break; |
| 1222 | } /* while */ |
| 1223 | |
| 1224 | /* start the device, if necessary */ |
| 1225 | if (info->started && needRestart && (info->writePos >= 0)) { |
| 1226 | DS_StartBufferHelper::StartBuffer(info); |
| 1227 | } |
| 1228 | |
| 1229 | TRACE1("< DAUDIO_Write: returning %d bytes.\n", byteSize); |
| 1230 | return byteSize; |
| 1231 | } |
| 1232 | |
| 1233 | // returns -1 on error |
| 1234 | int DAUDIO_Read(void* id, char* data, int byteSize) { |
| 1235 | DS_Info* info = (DS_Info*) id; |
| 1236 | int available; |
| 1237 | int thisReadPos; |
| 1238 | DWORD captureCursor, readCursor; |
| 1239 | HRESULT res; |
| 1240 | void* buffer1, *buffer2; |
| 1241 | DWORD buffer1len, buffer2len; |
| 1242 | int bufferSize; |
| 1243 | |
| 1244 | TRACE1("> DAUDIO_Read %d bytes\n", byteSize); |
| 1245 | |
| 1246 | available = DS_GetAvailable(info, &captureCursor, &readCursor, &bufferSize, FALSE /* fromCaptureCursor? */); |
| 1247 | if (byteSize > available) byteSize = available; |
| 1248 | if (byteSize > 0) { |
| 1249 | thisReadPos = info->writePos; |
| 1250 | if (thisReadPos == -1) { |
| 1251 | /* from beginning */ |
| 1252 | thisReadPos = 0; |
| 1253 | } |
| 1254 | res = info->captureBuffer->Lock(thisReadPos, byteSize, |
| 1255 | (LPVOID *) &buffer1, &buffer1len, |
| 1256 | (LPVOID *) &buffer2, &buffer2len, |
| 1257 | 0); |
| 1258 | if (res != DS_OK) { |
| 1259 | /* can't recover from error */ |
| 1260 | byteSize = 0; |
| 1261 | } else { |
| 1262 | /* buffer could be locked successfully */ |
| 1263 | /* first fill first buffer */ |
| 1264 | if (buffer1) { |
| 1265 | memcpy(data, buffer1, buffer1len); |
| 1266 | data = (char*) (((UINT_PTR) data) + buffer1len); |
| 1267 | } else buffer1len = 0; |
| 1268 | if (buffer2) { |
| 1269 | memcpy(data, buffer2, buffer2len); |
| 1270 | } else buffer2len = 0; |
| 1271 | byteSize = buffer1len + buffer2len; |
| 1272 | |
| 1273 | /* update next read pos */ |
| 1274 | thisReadPos = DS_addPos(info, thisReadPos, byteSize); |
| 1275 | /* commit data to directsound */ |
| 1276 | info->captureBuffer->Unlock(buffer1, buffer1len, buffer2, buffer2len); |
| 1277 | |
| 1278 | /* update position |
| 1279 | * must be BEFORE updating readPos, |
| 1280 | * so that getAvailable doesn't return too much, |
| 1281 | * so that getFramePos doesn't jump |
| 1282 | */ |
| 1283 | info->framePos += (byteSize / info->frameSize); |
| 1284 | |
| 1285 | info->writePos = thisReadPos; |
| 1286 | } |
| 1287 | } |
| 1288 | |
| 1289 | TRACE1("< DAUDIO_Read: returning %d bytes.\n", byteSize); |
| 1290 | return byteSize; |
| 1291 | } |
| 1292 | |
| 1293 | |
| 1294 | int DAUDIO_GetBufferSize(void* id, int isSource) { |
| 1295 | DS_Info* info = (DS_Info*) id; |
| 1296 | return info->bufferSizeInBytes; |
| 1297 | } |
| 1298 | |
| 1299 | int DAUDIO_StillDraining(void* id, int isSource) { |
| 1300 | DS_Info* info = (DS_Info*) id; |
| 1301 | BOOL draining = FALSE; |
| 1302 | int available, bufferSize; |
| 1303 | DWORD playCursor, writeCursor; |
| 1304 | |
| 1305 | DS_clearBuffer(info, TRUE /* from write position */); |
| 1306 | available = DS_GetAvailable(info, &playCursor, &writeCursor, &bufferSize, TRUE /* fromPlayCursor */); |
| 1307 | draining = (available < bufferSize); |
| 1308 | |
| 1309 | TRACE3("DAUDIO_StillDraining: available=%d silencedBytes=%d Still draining: %s\n", |
| 1310 | available, info->silencedBytes, draining?"TRUE":"FALSE"); |
| 1311 | return draining; |
| 1312 | } |
| 1313 | |
| 1314 | |
| 1315 | int DAUDIO_Flush(void* id, int isSource) { |
| 1316 | DS_Info* info = (DS_Info*) id; |
| 1317 | |
| 1318 | TRACE0("DAUDIO_Flush\n"); |
| 1319 | |
| 1320 | if (info->isSource) { |
| 1321 | info->playBuffer->Stop(); |
| 1322 | DS_clearBuffer(info, FALSE /* entire buffer */); |
| 1323 | } else { |
| 1324 | DWORD captureCursor, readCursor; |
| 1325 | /* set the read pointer to the current read position */ |
| 1326 | if (FAILED(info->captureBuffer->GetCurrentPosition(&captureCursor, &readCursor))) { |
| 1327 | ERROR0("DAUDIO_Flush: ERROR: Failed to get current position."); |
| 1328 | return FALSE; |
| 1329 | } |
| 1330 | DS_clearBuffer(info, FALSE /* entire buffer */); |
| 1331 | /* SHOULD set to *captureCursor*, |
| 1332 | * but that would be detected as overflow |
| 1333 | * in a subsequent GetAvailable() call. |
| 1334 | */ |
| 1335 | info->writePos = (int) readCursor; |
| 1336 | } |
| 1337 | return TRUE; |
| 1338 | } |
| 1339 | |
| 1340 | int DAUDIO_GetAvailable(void* id, int isSource) { |
| 1341 | DS_Info* info = (DS_Info*) id; |
| 1342 | DWORD playCursor, writeCursor; |
| 1343 | int ret, bufferSize; |
| 1344 | |
| 1345 | ret = DS_GetAvailable(info, &playCursor, &writeCursor, &bufferSize, /*fromPlayCursor?*/ FALSE); |
| 1346 | |
| 1347 | TRACE1("DAUDIO_GetAvailable returns %d bytes\n", ret); |
| 1348 | return ret; |
| 1349 | } |
| 1350 | |
| 1351 | INT64 estimatePositionFromAvail(DS_Info* info, INT64 javaBytePos, int bufferSize, int availInBytes) { |
| 1352 | // estimate the current position with the buffer size and |
| 1353 | // the available bytes to read or write in the buffer. |
| 1354 | // not an elegant solution - bytePos will stop on xruns, |
| 1355 | // and in race conditions it may jump backwards |
| 1356 | // Advantage is that it is indeed based on the samples that go through |
| 1357 | // the system (rather than time-based methods) |
| 1358 | if (info->isSource) { |
| 1359 | // javaBytePos is the position that is reached when the current |
| 1360 | // buffer is played completely |
| 1361 | return (INT64) (javaBytePos - bufferSize + availInBytes); |
| 1362 | } else { |
| 1363 | // javaBytePos is the position that was when the current buffer was empty |
| 1364 | return (INT64) (javaBytePos + availInBytes); |
| 1365 | } |
| 1366 | } |
| 1367 | |
| 1368 | INT64 DAUDIO_GetBytePosition(void* id, int isSource, INT64 javaBytePos) { |
| 1369 | DS_Info* info = (DS_Info*) id; |
| 1370 | int available, bufferSize; |
| 1371 | DWORD playCursor, writeCursor; |
| 1372 | INT64 result = javaBytePos; |
| 1373 | |
| 1374 | available = DS_GetAvailable(info, &playCursor, &writeCursor, &bufferSize, /*fromPlayCursor?*/ TRUE); |
| 1375 | result = estimatePositionFromAvail(info, javaBytePos, bufferSize, available); |
| 1376 | return result; |
| 1377 | } |
| 1378 | |
| 1379 | |
| 1380 | void DAUDIO_SetBytePosition(void* id, int isSource, INT64 javaBytePos) { |
| 1381 | /* save to ignore, since GetBytePosition |
| 1382 | * takes the javaBytePos param into account |
| 1383 | */ |
| 1384 | } |
| 1385 | |
| 1386 | int DAUDIO_RequiresServicing(void* id, int isSource) { |
| 1387 | // need servicing on for SourceDataLines |
| 1388 | return isSource?TRUE:FALSE; |
| 1389 | } |
| 1390 | |
| 1391 | void DAUDIO_Service(void* id, int isSource) { |
| 1392 | DS_Info* info = (DS_Info*) id; |
| 1393 | if (isSource) { |
| 1394 | if (info->silencedBytes < info->dsBufferSizeInBytes) { |
| 1395 | // clear buffer |
| 1396 | TRACE0("DAUDIO_Service\n"); |
| 1397 | DS_clearBuffer(info, TRUE /* from write position */); |
| 1398 | } |
| 1399 | if (info->writePos >= 0 |
| 1400 | && info->started |
| 1401 | && !info->underrun |
| 1402 | && info->silencedBytes >= info->dsBufferSizeInBytes) { |
| 1403 | // if we're currently playing, and the entire buffer is silenced... |
| 1404 | // then we are underrunning! |
| 1405 | info->underrun = TRUE; |
| 1406 | ERROR0("DAUDIO_Service: ERROR: DirectSound: underrun detected!\n"); |
| 1407 | } |
| 1408 | } |
| 1409 | } |
| 1410 | |
| 1411 | |
| 1412 | #endif // USE_DAUDIO |