diff options
Diffstat (limited to 'engines/sci/sfx/core.cpp')
| -rw-r--r-- | engines/sci/sfx/core.cpp | 203 |
1 files changed, 192 insertions, 11 deletions
diff --git a/engines/sci/sfx/core.cpp b/engines/sci/sfx/core.cpp index e37007bf8e..9bf7730fc9 100644 --- a/engines/sci/sfx/core.cpp +++ b/engines/sci/sfx/core.cpp @@ -348,11 +348,13 @@ SfxState::SfxState() { _flags = 0; _song = NULL; _suspended = 0; - _soundSync = 0; - _audioResource = 0; + _syncResource = NULL; + _audioRate = 11025; } SfxState::~SfxState() { + if (_syncResource) + _resMgr->unlockResource(_syncResource); } @@ -526,7 +528,7 @@ void SfxState::updateSingleSong() { debugMessage += " none\n"; } - debugC(2, kDebugLevelSound, debugMessage.c_str()); + debugC(2, kDebugLevelSound, "%s", debugMessage.c_str()); _song = newsong; thawTime(); /* Recover song delay time */ @@ -641,8 +643,8 @@ void SfxState::sfx_init(ResourceManager *resmgr, int flags) { _songlib._lib = 0; _song = NULL; _flags = flags; - _soundSync = NULL; - _audioResource = NULL; + _syncResource = NULL; + _syncOffset = 0; player = NULL; @@ -676,6 +678,8 @@ void SfxState::sfx_init(ResourceManager *resmgr, int flags) { delete player; player = NULL; } + + _resMgr = resmgr; } void SfxState::sfx_exit() { @@ -689,12 +693,6 @@ void SfxState::sfx_exit() { g_system->getMixer()->stopAll(); _songlib.freeSounds(); - - // Delete audio resources for CD talkie games - if (_audioResource) { - delete _audioResource; - _audioResource = 0; - } } void SfxState::sfx_suspend(bool suspend) { @@ -1004,4 +1002,187 @@ void SfxState::sfx_all_stop() { update(); } +int SfxState::startAudio(uint16 module, uint32 number) { + int sampleLen; + Audio::AudioStream *audioStream = getAudioStream(number, module, &sampleLen); + + if (audioStream) { + g_system->getMixer()->playInputStream(Audio::Mixer::kSpeechSoundType, &_audioHandle, audioStream); + return sampleLen; + } + + return 0; +} + +int SfxState::getAudioPosition() { + if (g_system->getMixer()->isSoundHandleActive(_audioHandle)) + return g_system->getMixer()->getSoundElapsedTime(_audioHandle) * 6 / 100; // return elapsed time in ticks + else + return -1; // Sound finished +} + +enum SolFlags { + kSolFlagCompressed = 1 << 0, + kSolFlagUnknown = 1 << 1, + kSolFlag16Bit = 1 << 2, + kSolFlagIsSigned = 1 << 3 +}; + +// FIXME: Move this to sound/adpcm.cpp? +// Note that the 16-bit version is also used in coktelvideo.cpp +static const uint16 tableDPCM16[128] = { + 0x0000, 0x0008, 0x0010, 0x0020, 0x0030, 0x0040, 0x0050, 0x0060, 0x0070, 0x0080, + 0x0090, 0x00A0, 0x00B0, 0x00C0, 0x00D0, 0x00E0, 0x00F0, 0x0100, 0x0110, 0x0120, + 0x0130, 0x0140, 0x0150, 0x0160, 0x0170, 0x0180, 0x0190, 0x01A0, 0x01B0, 0x01C0, + 0x01D0, 0x01E0, 0x01F0, 0x0200, 0x0208, 0x0210, 0x0218, 0x0220, 0x0228, 0x0230, + 0x0238, 0x0240, 0x0248, 0x0250, 0x0258, 0x0260, 0x0268, 0x0270, 0x0278, 0x0280, + 0x0288, 0x0290, 0x0298, 0x02A0, 0x02A8, 0x02B0, 0x02B8, 0x02C0, 0x02C8, 0x02D0, + 0x02D8, 0x02E0, 0x02E8, 0x02F0, 0x02F8, 0x0300, 0x0308, 0x0310, 0x0318, 0x0320, + 0x0328, 0x0330, 0x0338, 0x0340, 0x0348, 0x0350, 0x0358, 0x0360, 0x0368, 0x0370, + 0x0378, 0x0380, 0x0388, 0x0390, 0x0398, 0x03A0, 0x03A8, 0x03B0, 0x03B8, 0x03C0, + 0x03C8, 0x03D0, 0x03D8, 0x03E0, 0x03E8, 0x03F0, 0x03F8, 0x0400, 0x0440, 0x0480, + 0x04C0, 0x0500, 0x0540, 0x0580, 0x05C0, 0x0600, 0x0640, 0x0680, 0x06C0, 0x0700, + 0x0740, 0x0780, 0x07C0, 0x0800, 0x0900, 0x0A00, 0x0B00, 0x0C00, 0x0D00, 0x0E00, + 0x0F00, 0x1000, 0x1400, 0x1800, 0x1C00, 0x2000, 0x3000, 0x4000 +}; + +static const byte tableDPCM8[8] = {0, 1, 2, 3, 6, 10, 15, 21}; + +static void deDPCM16(byte *soundBuf, Common::SeekableReadStream &audioStream, uint32 n) { + int16 *out = (int16 *) soundBuf; + + int32 s = 0; + for (uint32 i = 0; i < n; i++) { + byte b = audioStream.readByte(); + if (b & 0x80) + s -= tableDPCM16[b & 0x7f]; + else + s += tableDPCM16[b]; + + s = CLIP<int32>(s, -32768, 32767); + *out++ = TO_BE_16(s); + } +} + +static void deDPCM8Nibble(byte *soundBuf, int32 &s, byte b) { + if (b & 8) + s -= tableDPCM8[7 - (b & 7)]; + else + s += tableDPCM8[b & 7]; + s = CLIP<int32>(s, 0, 255); + *soundBuf = s; +} + +static void deDPCM8(byte *soundBuf, Common::SeekableReadStream &audioStream, uint32 n) { + int32 s = 0x80; + + for (uint i = 0; i < n; i++) { + byte b = audioStream.readByte(); + + deDPCM8Nibble(soundBuf++, s, b >> 4); + deDPCM8Nibble(soundBuf++, s, b & 0xf); + } +} + +// Sierra SOL audio file reader +// Check here for more info: http://wiki.multimedia.cx/index.php?title=Sierra_Audio +static bool readSOLHeader(Common::SeekableReadStream *audioStream, int headerSize, uint32 &size, uint16 &audioRate, byte &audioFlags) { + if (headerSize != 11 && headerSize != 12) { + warning("SOL audio header of size %i not supported", headerSize); + return false; + } + + audioStream->readUint32LE(); // skip "SOL" + 0 (4 bytes) + audioRate = audioStream->readUint16LE(); + audioFlags = audioStream->readByte(); + + size = audioStream->readUint32LE(); + return true; +} + +static byte* readSOLAudio(Common::SeekableReadStream *audioStream, uint32 &size, byte audioFlags, byte &flags) { + byte *buffer; + + // Convert the SOL stream flags to our own format + flags = 0; + if (audioFlags & kSolFlag16Bit) + flags |= Audio::Mixer::FLAG_16BITS; + if (!(audioFlags & kSolFlagIsSigned)) + flags |= Audio::Mixer::FLAG_UNSIGNED; + + if (audioFlags & kSolFlagCompressed) { + buffer = (byte *)malloc(size * 2); + + if (audioFlags & kSolFlag16Bit) + deDPCM16(buffer, *audioStream, size); + else + deDPCM8(buffer, *audioStream, size); + + size *= 2; + } else { + // We assume that the sound data is raw PCM + buffer = (byte *)malloc(size); + audioStream->read(buffer, size); + } + + return buffer; +} + +Audio::AudioStream* SfxState::getAudioStream(uint32 number, uint32 volume, int *sampleLen) { + Audio::AudioStream *audioStream = 0; + uint32 size; + byte *data = 0; + byte flags = 0; + Sci::Resource* audioRes; + + if (volume == 65535) { + audioRes = _resMgr->findResource(ResourceId(kResourceTypeAudio, number), false); + if (!audioRes) { + warning("Failed to find audio entry %i", number); + return NULL; + } + } else { + audioRes = _resMgr->findResource(ResourceId(kResourceTypeAudio36, volume, number), false); + if (!audioRes) { + warning("Failed to find audio entry (%i, %i, %i, %i, %i)", volume, (number >> 24) & 0xff, + (number >> 16) & 0xff, (number >> 8) & 0xff, number & 0xff); + return NULL; + } + } + + byte audioFlags; + + if (audioRes->headerSize > 0) { + // SCI1.1 + Common::MemoryReadStream *headerStream = + new Common::MemoryReadStream(audioRes->header, audioRes->headerSize, false); + + if (readSOLHeader(headerStream, audioRes->headerSize, size, _audioRate, audioFlags)) { + Common::MemoryReadStream *dataStream = + new Common::MemoryReadStream(audioRes->data, audioRes->size, false); + data = readSOLAudio(dataStream, size, audioFlags, flags); + delete dataStream; + } + delete headerStream; + } else { + // SCI1 + size = audioRes->size; + data = (byte *)malloc(size); + assert(data); + memcpy(data, audioRes->data, size); + flags = Audio::Mixer::FLAG_UNSIGNED; + } + + if (data) { + audioStream = Audio::makeLinearInputStream(data, size, _audioRate, + flags | Audio::Mixer::FLAG_AUTOFREE, 0, 0); + if (audioStream) { + *sampleLen = (flags & Audio::Mixer::FLAG_16BITS ? size >> 1 : size) * 60 / _audioRate; + return audioStream; + } + } + + return NULL; +} + } // End of namespace Sci |