reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame^] | 1 | #include "SkOSSound.h" |
| 2 | |
| 3 | #ifdef SK_BUILD_FOR_WIN |
| 4 | |
| 5 | ////////////////////////////////////////////////////////////////////// |
| 6 | // Construction/Destruction |
| 7 | ////////////////////////////////////////////////////////////////////// |
| 8 | |
| 9 | #include <Mmreg.h> |
| 10 | #if defined _WIN32 && _MSC_VER >= 1300 // disable nameless struct/union |
| 11 | #pragma warning ( push ) |
| 12 | #pragma warning ( disable : 4201 ) |
| 13 | #endif |
| 14 | #include <Mmsystem.h> |
| 15 | #if defined _WIN32 && _MSC_VER >= 1300 |
| 16 | #pragma warning ( pop ) |
| 17 | #endif |
| 18 | #include <stdio.h> |
| 19 | |
| 20 | class CWaveFile { |
| 21 | public: |
| 22 | BOOL Open(const char path[]); |
| 23 | void Close(); |
| 24 | |
| 25 | long Read(char* pData, long nLength); |
| 26 | |
| 27 | long GetLength() const {return m_nLength;} |
| 28 | WAVEFORMATEX* GetWaveFormat() {return (&m_Format);} |
| 29 | |
| 30 | protected: |
| 31 | FILE* m_pFile; |
| 32 | long m_nLength; |
| 33 | WAVEFORMATEX m_Format; |
| 34 | |
| 35 | private: |
| 36 | enum { |
| 37 | WF_OFFSET_FORMATTAG = 20, |
| 38 | WF_OFFSET_CHANNELS = 22, |
| 39 | WF_OFFSET_SAMPLESPERSEC = 24, |
| 40 | WF_OFFSET_AVGBYTESPERSEC = 28, |
| 41 | WF_OFFSET_BLOCKALIGN = 32, |
| 42 | WF_OFFSET_BITSPERSAMPLE = 34, |
| 43 | WF_OFFSET_DATASIZE = 40, |
| 44 | WF_OFFSET_DATA = 44, |
| 45 | WF_HEADER_SIZE = WF_OFFSET_DATA |
| 46 | }; |
| 47 | }; |
| 48 | |
| 49 | BOOL CWaveFile::Open(const char path[]) |
| 50 | { |
| 51 | BYTE aHeader[WF_HEADER_SIZE]; |
| 52 | |
| 53 | /* hResInfo = FindResource (hInst, lpName, "WAVE"); |
| 54 | |
| 55 | if (hResInfo == NULL) |
| 56 | return FALSE; |
| 57 | |
| 58 | // Load the wave resource. |
| 59 | hRes = LoadResource (hInst, hResInfo); |
| 60 | |
| 61 | if (hRes == NULL) |
| 62 | return FALSE; |
| 63 | |
| 64 | // Lock the wave resource and play it. |
| 65 | lpRes = LockResource (0); |
| 66 | */ |
| 67 | |
| 68 | |
| 69 | // open file |
| 70 | // m_pFile = _tfopen(szFileName, TEXT("rb")); |
| 71 | m_pFile = fopen(path, "rb"); |
| 72 | if (!m_pFile) { |
| 73 | return FALSE; |
| 74 | } |
| 75 | |
| 76 | // set file length |
| 77 | fseek(m_pFile, 0, SEEK_END); |
| 78 | m_nLength = ftell(m_pFile) - WF_HEADER_SIZE; |
| 79 | |
| 80 | // set the format attribute members |
| 81 | fseek(m_pFile, 0, SEEK_SET); |
| 82 | fread(aHeader, 1, WF_HEADER_SIZE, m_pFile); |
| 83 | m_Format.wFormatTag = *((WORD*) (aHeader + WF_OFFSET_FORMATTAG)); |
| 84 | m_Format.nChannels = *((WORD*) (aHeader + WF_OFFSET_CHANNELS)); |
| 85 | m_Format.nSamplesPerSec = *((DWORD*) (aHeader + WF_OFFSET_SAMPLESPERSEC)); |
| 86 | m_Format.nAvgBytesPerSec = *((DWORD*) (aHeader + WF_OFFSET_AVGBYTESPERSEC)); |
| 87 | m_Format.nBlockAlign = *((WORD*) (aHeader + WF_OFFSET_BLOCKALIGN)); |
| 88 | m_Format.wBitsPerSample = *((WORD*) (aHeader + WF_OFFSET_BITSPERSAMPLE)); |
| 89 | |
| 90 | return TRUE; |
| 91 | } |
| 92 | |
| 93 | void CWaveFile::Close() |
| 94 | { |
| 95 | fclose(m_pFile); |
| 96 | } |
| 97 | |
| 98 | long CWaveFile::Read(char* pData, long nLength) |
| 99 | { |
| 100 | return fread(pData, 1, nLength, m_pFile); |
| 101 | } |
| 102 | |
| 103 | //////////////////////////////////////////////////////////////////////////////////////// |
| 104 | |
| 105 | struct SkOSSoundWave { |
| 106 | HWAVEOUT hwo; |
| 107 | WAVEHDR whdr; |
| 108 | DWORD dwOldVolume; |
| 109 | CWaveFile waveFile; |
| 110 | HANDLE hDoneEvent; |
| 111 | }; |
| 112 | |
| 113 | static SkOSSoundWave gWave; |
| 114 | static bool gWavePaused; |
| 115 | static U8 gVolume; |
| 116 | static bool gInited = false; |
| 117 | |
| 118 | static void init_wave() |
| 119 | { |
| 120 | if (gInited == false) |
| 121 | { |
| 122 | gWave.hwo = nil; |
| 123 | gWavePaused = false; |
| 124 | gVolume = 0x80; |
| 125 | gInited = true; |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | MMRESULT StartWave(const char path[], SkOSSoundWave* wave, U32 vol); |
| 130 | MMRESULT EndWave(SkOSSoundWave* wave); |
| 131 | |
| 132 | #define MAX_ERRMSG 256 |
| 133 | |
| 134 | //#include "SkOSFile.h" // for utf16 |
| 135 | |
| 136 | void SkOSSound::Play(const char path[]) |
| 137 | { |
| 138 | init_wave(); |
| 139 | |
| 140 | if (gWave.hwo != nil) |
| 141 | SkOSSound::Stop(); |
| 142 | |
| 143 | U32 v32 = (gVolume << 8) | gVolume; // fill it out to 16bits |
| 144 | v32 |= v32 << 16; // set the left and right channels |
| 145 | |
| 146 | StartWave(path, &gWave, v32); |
| 147 | gWavePaused = false; |
| 148 | } |
| 149 | |
| 150 | bool SkOSSound::TogglePause() |
| 151 | { |
| 152 | init_wave(); |
| 153 | |
| 154 | if (gWavePaused) |
| 155 | SkOSSound::Resume(); |
| 156 | else |
| 157 | SkOSSound::Pause(); |
| 158 | return !gWavePaused; |
| 159 | } |
| 160 | |
| 161 | |
| 162 | void SkOSSound::Pause() |
| 163 | { |
| 164 | init_wave(); |
| 165 | |
| 166 | if (gWave.hwo == nil || (gWave.whdr.dwFlags & WHDR_DONE)) |
| 167 | return; |
| 168 | waveOutPause(gWave.hwo); |
| 169 | gWavePaused = true; |
| 170 | } |
| 171 | |
| 172 | void SkOSSound::Resume() |
| 173 | { |
| 174 | init_wave(); |
| 175 | |
| 176 | if (gWave.hwo == nil || (gWave.whdr.dwFlags & WHDR_DONE)) |
| 177 | return; |
| 178 | waveOutRestart(gWave.hwo); |
| 179 | gWavePaused = false; |
| 180 | } |
| 181 | |
| 182 | void SkOSSound::Stop() |
| 183 | { |
| 184 | init_wave(); |
| 185 | |
| 186 | // if (gWave.hwo == nil || (gWave.whdr.dwFlags & WHDR_DONE)) |
| 187 | if (gWave.hwo == nil) |
| 188 | return; |
| 189 | waveOutReset(gWave.hwo); |
| 190 | EndWave(&gWave); |
| 191 | gWavePaused = false; |
| 192 | gWave.hwo = nil; |
| 193 | } |
| 194 | |
| 195 | U8 SkOSSound::GetVolume() |
| 196 | { |
| 197 | init_wave(); |
| 198 | return gVolume; |
| 199 | } |
| 200 | |
| 201 | void SkOSSound::SetVolume(U8CPU vol) |
| 202 | { |
| 203 | if ((int)vol < 0) |
| 204 | vol = 0; |
| 205 | else if (vol > 255) |
| 206 | vol = 255; |
| 207 | |
| 208 | init_wave(); |
| 209 | gVolume = SkToU8(vol); |
| 210 | |
| 211 | if (gWave.hwo) |
| 212 | { |
| 213 | unsigned long v32 = (vol << 8) | vol; // fill it out to 16bits |
| 214 | v32 |= v32 << 16; // set the left and right channels |
| 215 | waveOutSetVolume(gWave.hwo, v32); |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | #if 0 |
| 220 | unsigned long SoundManager::GetPosition() |
| 221 | { |
| 222 | if (fWave.hwo == nil) |
| 223 | return 0; |
| 224 | MMTIME time; |
| 225 | time.wType = TIME_MS; |
| 226 | if (waveOutGetPosition(fWave.hwo, &time, sizeof(time)) == MMSYSERR_NOERROR && |
| 227 | time.wType == TIME_MS) |
| 228 | { |
| 229 | return time.u.ms; |
| 230 | } |
| 231 | return 0; |
| 232 | } |
| 233 | #endif |
| 234 | |
| 235 | MMRESULT StartWave(const char path[], SkOSSoundWave* wave, U32 vol) |
| 236 | { |
| 237 | HWAVEOUT hwo = nil; |
| 238 | // WAVEHDR whdr; |
| 239 | MMRESULT mmres = 0; |
| 240 | // CWaveFile waveFile; |
| 241 | // HANDLE hDoneEvent = wave.hDoneEvent = |
| 242 | // CreateEvent(NULL, FALSE, FALSE, TEXT("DONE_EVENT")); |
| 243 | UINT devId; |
| 244 | // DWORD dwOldVolume; |
| 245 | |
| 246 | // Open wave file |
| 247 | if (!wave->waveFile.Open(path)) { |
| 248 | // TCHAR szErrMsg[MAX_ERRMSG]; |
| 249 | // _stprintf(szErrMsg, TEXT("Unable to open file: %s\n"), szWavFile); |
| 250 | // MessageBox(NULL, szErrMsg, TEXT("File I/O Error"), MB_OK); |
| 251 | return MMSYSERR_NOERROR; |
| 252 | } |
| 253 | |
| 254 | // Open audio device |
| 255 | for (devId = 0; devId < waveOutGetNumDevs(); devId++) |
| 256 | { |
| 257 | mmres = waveOutOpen(&hwo, devId, wave->waveFile.GetWaveFormat(), 0, 0, CALLBACK_NULL); |
| 258 | if (mmres == MMSYSERR_NOERROR) |
| 259 | { |
| 260 | wave->hwo = hwo; |
| 261 | break; |
| 262 | } |
| 263 | } |
| 264 | if (mmres != MMSYSERR_NOERROR) |
| 265 | { |
| 266 | SkDEBUGCODE(SkDebugf("waveOutOpen(%s) -> %d\n", path, mmres);) |
| 267 | return mmres; |
| 268 | } |
| 269 | |
| 270 | // Set volume |
| 271 | mmres = waveOutGetVolume(hwo, &wave->dwOldVolume); |
| 272 | if (mmres != MMSYSERR_NOERROR) { |
| 273 | return mmres; |
| 274 | } |
| 275 | |
| 276 | waveOutSetVolume(hwo, vol); |
| 277 | if (mmres != MMSYSERR_NOERROR) { |
| 278 | return mmres; |
| 279 | } |
| 280 | |
| 281 | // Initialize wave header |
| 282 | ZeroMemory(&wave->whdr, sizeof(WAVEHDR)); |
| 283 | wave->whdr.lpData = new char[wave->waveFile.GetLength()]; |
| 284 | wave->whdr.dwBufferLength = wave->waveFile.GetLength(); |
| 285 | wave->whdr.dwUser = 0; |
| 286 | wave->whdr.dwFlags = 0; |
| 287 | wave->whdr.dwLoops = 0; |
| 288 | wave->whdr.dwBytesRecorded = 0; |
| 289 | wave->whdr.lpNext = 0; |
| 290 | wave->whdr.reserved = 0; |
| 291 | |
| 292 | // Play buffer |
| 293 | wave->waveFile.Read(wave->whdr.lpData, wave->whdr.dwBufferLength); |
| 294 | |
| 295 | mmres = waveOutPrepareHeader(hwo, &wave->whdr, sizeof(WAVEHDR)); |
| 296 | if (mmres != MMSYSERR_NOERROR) { |
| 297 | return mmres; |
| 298 | } |
| 299 | |
| 300 | mmres = waveOutWrite(hwo, &wave->whdr, sizeof(WAVEHDR)); |
| 301 | // if (mmres != MMSYSERR_NOERROR) { |
| 302 | return mmres; |
| 303 | // } |
| 304 | } |
| 305 | |
| 306 | #if 0 |
| 307 | void IdleWave(Wave& wave) |
| 308 | { |
| 309 | // Wait for audio to finish playing |
| 310 | while (!(wave.whdr.dwFlags & WHDR_DONE)) { |
| 311 | WaitForSingleObject(wave.hDoneEvent, INFINITE); |
| 312 | } |
| 313 | } |
| 314 | #endif |
| 315 | |
| 316 | MMRESULT EndWave(SkOSSoundWave* wave) |
| 317 | { |
| 318 | HWAVEOUT hwo = wave->hwo; |
| 319 | MMRESULT mmres; |
| 320 | // Clean up |
| 321 | mmres = waveOutUnprepareHeader(hwo, &wave->whdr, sizeof(WAVEHDR)); |
| 322 | if (mmres != MMSYSERR_NOERROR) { |
| 323 | return mmres; |
| 324 | } |
| 325 | |
| 326 | waveOutSetVolume(hwo, wave->dwOldVolume); |
| 327 | if (mmres != MMSYSERR_NOERROR) { |
| 328 | return mmres; |
| 329 | } |
| 330 | |
| 331 | mmres = waveOutClose(hwo); |
| 332 | if (mmres != MMSYSERR_NOERROR) { |
| 333 | return mmres; |
| 334 | } |
| 335 | |
| 336 | delete [] wave->whdr.lpData; |
| 337 | wave->waveFile.Close(); |
| 338 | |
| 339 | return MMSYSERR_NOERROR; |
| 340 | } |
| 341 | |
| 342 | #endif /* SK_BUILD_FOR_WIN */ |
| 343 | |