diff options
Diffstat (limited to 'engines/lastexpress/sound/entry.cpp')
-rw-r--r-- | engines/lastexpress/sound/entry.cpp | 496 |
1 files changed, 74 insertions, 422 deletions
diff --git a/engines/lastexpress/sound/entry.cpp b/engines/lastexpress/sound/entry.cpp index 2840d85ca7..44cc68a57b 100644 --- a/engines/lastexpress/sound/entry.cpp +++ b/engines/lastexpress/sound/entry.cpp @@ -47,9 +47,6 @@ namespace LastExpress { SoundEntry::SoundEntry(LastExpressEngine *engine) : _engine(engine) { _type = kSoundTypeNone; - _currentDataPtr = NULL; - _soundBuffer = NULL; - _blockCount = 0; _time = 0; @@ -76,8 +73,6 @@ SoundEntry::~SoundEntry() { SAFE_DELETE(_stream); delete _soundStream; - free(_soundBuffer); - // Zero passed pointers _engine = NULL; } @@ -86,18 +81,15 @@ void SoundEntry::open(Common::String name, SoundFlag flag, int priority) { _priority = priority; setType(flag); setupStatus(flag); - - // Add entry to cache and load sound data - setupCache(); - loadSoundData(name); + loadStream(name); } void SoundEntry::close() { - _status.status |= kSoundStatusRemoved; + _status.status |= kSoundStatusClosed; // Loop until ready - while (!(_status.status1 & 4) && !(getSoundQueue()->getFlag() & 8) && (getSoundQueue()->getFlag() & 1)) - ; // empty loop body + //while (!(_status.status1 & 4) && !(getSoundQueue()->getFlag() & 8) && (getSoundQueue()->getFlag() & 1)) + // ; // empty loop body // The original game remove the entry from the cache here, // but since we are called from within an iterator loop @@ -123,34 +115,24 @@ void SoundEntry::play() { return; } - if (_queued) - return; - - // Apply filter - int16 *buffer = (int16 *)malloc(FILTER_BUFFER_SIZE); - memset(buffer, 0, FILTER_BUFFER_SIZE); - - applyFilter(buffer); - - // Queue the filtered data -#if 0 + // Prepare sound stream if (!_soundStream) - _soundStream = new AppendableSound(); + _soundStream = new StreamedSound(); - // FIXME: make sure the filtered sound buffer is disposed - _soundStream->queueBuffer((const byte *)buffer, FILTER_BUFFER_SIZE /* true */); -#else - free(buffer); + // Compute current filter id + int32 filterId = _status.status & kSoundStatusFilter; + // TODO adjust status (based on stepIndex) - // DEBUG: unfiltered stream - if (!_soundStream) - _soundStream = new StreamedSound(); + if (_queued) { + _soundStream->setFilterId(filterId); + } else { + _stream->seek(0); - _stream->seek(0); - _soundStream->load(_stream); -#endif + // Load the stream and start playing + _soundStream->load(_stream, filterId); - _queued = true; + _queued = true; + } } bool SoundEntry::isFinished() { @@ -238,8 +220,8 @@ void SoundEntry::setType(SoundFlag flag) { void SoundEntry::setupStatus(SoundFlag flag) { SoundStatus statusFlag = (SoundStatus)flag; - if (!((statusFlag & 0xFF) & kSoundStatusFilterVariant)) - statusFlag = (SoundStatus)(statusFlag | kSoundStatusClear2); + if (!((statusFlag & 0xFF) & kSoundStatusFilter)) + statusFlag = (SoundStatus)(statusFlag | kSoundStatusCached); if (((statusFlag & 0xFF00) >> 8) & kSoundStatusClear0) _status.status = (uint32)statusFlag; @@ -247,23 +229,7 @@ void SoundEntry::setupStatus(SoundFlag flag) { _status.status = (statusFlag | kSoundStatusClear4); } -void SoundEntry::setupCache() { - if (_soundBuffer) - return; - - // Original has a priority-based shared buffer (of 6 entries) - // We simply allocate a new buffer for each sound entry that needs it - _soundBuffer = (byte *)malloc(SOUNDCACHE_ENTRY_SIZE); - memset(_soundBuffer, 0, SOUNDCACHE_ENTRY_SIZE); - - setInCache(); -} - -void SoundEntry::setInCache() { - _status.status |= kSoundStatusClear2; -} - -void SoundEntry::loadSoundData(Common::String name) { +void SoundEntry::loadStream(Common::String name) { _name2 = name; // Load sound data @@ -272,12 +238,8 @@ void SoundEntry::loadSoundData(Common::String name) { if (!_stream) _stream = getArchive("DEFAULT.SND"); - if (_stream) { - _stream->read(_soundBuffer, MIN(SOUNDCACHE_ENTRY_SIZE, _stream->size())); - _currentDataPtr = _soundBuffer + 6; - } else { - _status.status = kSoundStatusRemoved; - } + if (!_stream) + _status.status = kSoundStatusClosed; } void SoundEntry::update(uint val) { @@ -300,10 +262,60 @@ void SoundEntry::update(uint val) { } } +bool SoundEntry::updateSound() { + bool result; + char sub[16]; + + if (_status.status2 & 4) { + result = false; + } else { + if (_status.status2 & 0x80) { + if (_field_48 <= getSound()->getData2()) { + _status.status |= 0x20; + _status.status &= ~0x8000; + strcpy(sub, _name2.c_str()); + + int l = strlen(sub) + 1; + if (l - 1 > 4) + sub[l - 1 - 4] = 0; + showSubtitle(sub); + } + } else { + if (!(getSoundQueue()->getFlag() & 0x20)) { + if (!(_status.status3 & 8)) { + if (_entity) { + if (_entity < 0x80) { + updateEntryFlag(getSound()->getSoundFlag(_entity)); + } + } + } + } + //if (status.status2 & 0x40 && !((uint32)_status.status & 0x180) && v1->soundBuffer) + // Sound_FillSoundBuffer(v1); + } + result = true; + } + + return result; +} + +void SoundEntry::updateEntryFlag(SoundFlag flag) { + if (flag) { + if (getSoundQueue()->getFlag() & 0x20 && _type != kSoundType9 && _type != kSoundType7) + update(flag); + else + _status.status = flag + (_status.status & ~0x1F); + } else { + _variant = 0; + _status.status |= 0x80u; + _status.status &= ~0x10001F; + } +} + void SoundEntry::updateState() { if (getSoundQueue()->getFlag() & 32) { if (_type != kSoundType9 && _type != kSoundType7 && _type != kSoundType5) { - uint32 variant = _status.status & kSoundStatusFilterVariant; + uint32 variant = _status.status & kSoundStatusFilter; _status.status &= kSoundStatusClearAll; @@ -316,7 +328,7 @@ void SoundEntry::updateState() { } void SoundEntry::reset() { - _status.status |= kSoundStatusRemoved; + _status.status |= kSoundStatusClosed; _entity = kEntityPlayer; if (_stream) { @@ -372,366 +384,6 @@ void SoundEntry::saveLoadWithSerializer(Common::Serializer &s) { } ////////////////////////////////////////////////////////////////////////// -// Sound filters -////////////////////////////////////////////////////////////////////////// -static const int filterData[1424] = { - 0, 0, 0, 0, 128, 256, 384, 512, 0, 0, 0, 0, 128, 256, - 384, 512, 0, 0, 0, 0, 192, 320, 448, 576, 0, 0, 0, 0, - 192, 320, 448, 576, 64, 64, 64, 64, 256, 384, 512, 640, - 64, 64, 64, 64, 256, 384, 512, 640, 128, 128, 128, 128, - 320, 448, 576, 704, 128, 128, 128, 128, 320, 448, 576, - 704, 192, 192, 192, 192, 384, 512, 640, 768, 192, 192, - 192, 192, 384, 512, 640, 768, 256, 256, 256, 256, 448, - 576, 704, 832, 256, 256, 256, 256, 448, 576, 704, 832, - 320, 320, 320, 320, 512, 640, 768, 896, 320, 320, 320, - 320, 512, 640, 768, 896, 384, 384, 384, 384, 576, 704, - 832, 960, 384, 384, 384, 384, 576, 704, 832, 960, 448, - 448, 448, 448, 640, 768, 896, 1024, 448, 448, 448, 448, - 640, 768, 896, 1024, 512, 512, 512, 512, 704, 832, 960, - 1088, 512, 512, 512, 512, 704, 832, 960, 1088, 576, - 576, 576, 576, 768, 896, 1024, 1152, 576, 576, 576, - 576, 768, 896, 1024, 1152, 640, 640, 640, 640, 832, - 960, 1088, 1216, 640, 640, 640, 640, 832, 960, 1088, - 1216, 704, 704, 704, 704, 896, 1024, 1152, 1280, 704, - 704, 704, 704, 896, 1024, 1152, 1280, 768, 768, 768, - 768, 960, 1088, 1216, 1344, 768, 768, 768, 768, 960, - 1088, 1216, 1344, 832, 832, 832, 832, 1024, 1152, 1280, - 1408, 832, 832, 832, 832, 1024, 1152, 1280, 1408, 896, - 896, 896, 896, 1088, 1216, 1344, 1472, 896, 896, 896, - 896, 1088, 1216, 1344, 1472, 960, 960, 960, 960, 1152, - 1280, 1408, 1536, 960, 960, 960, 960, 1152, 1280, 1408, - 1536, 1024, 1024, 1024, 1024, 1216, 1344, 1472, 1600, - 1024, 1024, 1024, 1024, 1216, 1344, 1472, 1600, 1088, - 1088, 1088, 1088, 1280, 1408, 1536, 1664, 1088, 1088, - 1088, 1088, 1280, 1408, 1536, 1664, 1152, 1152, 1152, - 1152, 1344, 1472, 1600, 1728, 1152, 1152, 1152, 1152, - 1344, 1472, 1600, 1728, 1216, 1216, 1216, 1216, 1408, - 1536, 1664, 1792, 1216, 1216, 1216, 1216, 1408, 1536, - 1664, 1792, 1280, 1280, 1280, 1280, 1472, 1600, 1728, - 1856, 1280, 1280, 1280, 1280, 1472, 1600, 1728, 1856, - 1344, 1344, 1344, 1344, 1536, 1664, 1792, 1920, 1344, - 1344, 1344, 1344, 1536, 1664, 1792, 1920, 1408, 1408, - 1408, 1408, 1600, 1728, 1856, 1984, 1408, 1408, 1408, - 1408, 1600, 1728, 1856, 1984, 1472, 1472, 1472, 1472, - 1664, 1792, 1920, 2048, 1472, 1472, 1472, 1472, 1664, - 1792, 1920, 2048, 1536, 1536, 1536, 1536, 1728, 1856, - 1984, 2112, 1536, 1536, 1536, 1536, 1728, 1856, 1984, - 2112, 1600, 1600, 1600, 1600, 1792, 1920, 2048, 2176, - 1600, 1600, 1600, 1600, 1792, 1920, 2048, 2176, 1664, - 1664, 1664, 1664, 1856, 1984, 2112, 2240, 1664, 1664, - 1664, 1664, 1856, 1984, 2112, 2240, 1728, 1728, 1728, - 1728, 1920, 2048, 2176, 2304, 1728, 1728, 1728, 1728, - 1920, 2048, 2176, 2304, 1792, 1792, 1792, 1792, 1984, - 2112, 2240, 2368, 1792, 1792, 1792, 1792, 1984, 2112, - 2240, 2368, 1856, 1856, 1856, 1856, 2048, 2176, 2304, - 2432, 1856, 1856, 1856, 1856, 2048, 2176, 2304, 2432, - 1920, 1920, 1920, 1920, 2112, 2240, 2368, 2496, 1920, - 1920, 1920, 1920, 2112, 2240, 2368, 2496, 1984, 1984, - 1984, 1984, 2176, 2304, 2432, 2560, 1984, 1984, 1984, - 1984, 2176, 2304, 2432, 2560, 2048, 2048, 2048, 2048, - 2240, 2368, 2496, 2624, 2048, 2048, 2048, 2048, 2240, - 2368, 2496, 2624, 2112, 2112, 2112, 2112, 2304, 2432, - 2560, 2688, 2112, 2112, 2112, 2112, 2304, 2432, 2560, - 2688, 2176, 2176, 2176, 2176, 2368, 2496, 2624, 2752, - 2176, 2176, 2176, 2176, 2368, 2496, 2624, 2752, 2240, - 2240, 2240, 2240, 2432, 2560, 2688, 2816, 2240, 2240, - 2240, 2240, 2432, 2560, 2688, 2816, 2304, 2304, 2304, - 2304, 2496, 2624, 2752, 2880, 2304, 2304, 2304, 2304, - 2496, 2624, 2752, 2880, 2368, 2368, 2368, 2368, 2560, - 2688, 2816, 2944, 2368, 2368, 2368, 2368, 2560, 2688, - 2816, 2944, 2432, 2432, 2432, 2432, 2624, 2752, 2880, - 3008, 2432, 2432, 2432, 2432, 2624, 2752, 2880, 3008, - 2496, 2496, 2496, 2496, 2688, 2816, 2944, 3072, 2496, - 2496, 2496, 2496, 2688, 2816, 2944, 3072, 2560, 2560, - 2560, 2560, 2752, 2880, 3008, 3136, 2560, 2560, 2560, - 2560, 2752, 2880, 3008, 3136, 2624, 2624, 2624, 2624, - 2816, 2944, 3072, 3200, 2624, 2624, 2624, 2624, 2816, - 2944, 3072, 3200, 2688, 2688, 2688, 2688, 2880, 3008, - 3136, 3264, 2688, 2688, 2688, 2688, 2880, 3008, 3136, - 3264, 2752, 2752, 2752, 2752, 2944, 3072, 3200, 3328, - 2752, 2752, 2752, 2752, 2944, 3072, 3200, 3328, 2816, - 2816, 2816, 2816, 3008, 3136, 3264, 3392, 2816, 2816, - 2816, 2816, 3008, 3136, 3264, 3392, 2880, 2880, 2880, - 2880, 3072, 3200, 3328, 3456, 2880, 2880, 2880, 2880, - 3072, 3200, 3328, 3456, 2944, 2944, 2944, 2944, 3136, - 3264, 3392, 3520, 2944, 2944, 2944, 2944, 3136, 3264, - 3392, 3520, 3008, 3008, 3008, 3008, 3200, 3328, 3456, - 3584, 3008, 3008, 3008, 3008, 3200, 3328, 3456, 3584, - 3072, 3072, 3072, 3072, 3264, 3392, 3520, 3648, 3072, - 3072, 3072, 3072, 3264, 3392, 3520, 3648, 3136, 3136, - 3136, 3136, 3328, 3456, 3584, 3712, 3136, 3136, 3136, - 3136, 3328, 3456, 3584, 3712, 3200, 3200, 3200, 3200, - 3392, 3520, 3648, 3776, 3200, 3200, 3200, 3200, 3392, - 3520, 3648, 3776, 3264, 3264, 3264, 3264, 3456, 3584, - 3712, 3840, 3264, 3264, 3264, 3264, 3456, 3584, 3712, - 3840, 3328, 3328, 3328, 3328, 3520, 3648, 3776, 3904, - 3328, 3328, 3328, 3328, 3520, 3648, 3776, 3904, 3392, - 3392, 3392, 3392, 3584, 3712, 3840, 3968, 3392, 3392, - 3392, 3392, 3584, 3712, 3840, 3968, 3456, 3456, 3456, - 3456, 3648, 3776, 3904, 4032, 3456, 3456, 3456, 3456, - 3648, 3776, 3904, 4032, 3520, 3520, 3520, 3520, 3712, - 3840, 3968, 4096, 3520, 3520, 3520, 3520, 3712, 3840, - 3968, 4096, 3584, 3584, 3584, 3584, 3776, 3904, 4032, - 4160, 3584, 3584, 3584, 3584, 3776, 3904, 4032, 4160, - 3648, 3648, 3648, 3648, 3840, 3968, 4096, 4224, 3648, - 3648, 3648, 3648, 3840, 3968, 4096, 4224, 3712, 3712, - 3712, 3712, 3904, 4032, 4160, 4288, 3712, 3712, 3712, - 3712, 3904, 4032, 4160, 4288, 3776, 3776, 3776, 3776, - 3968, 4096, 4224, 4352, 3776, 3776, 3776, 3776, 3968, - 4096, 4224, 4352, 3840, 3840, 3840, 3840, 4032, 4160, - 4288, 4416, 3840, 3840, 3840, 3840, 4032, 4160, 4288, - 4416, 3904, 3904, 3904, 3904, 4096, 4224, 4352, 4480, - 3904, 3904, 3904, 3904, 4096, 4224, 4352, 4480, 3968, - 3968, 3968, 3968, 4160, 4288, 4416, 4544, 3968, 3968, - 3968, 3968, 4160, 4288, 4416, 4544, 4032, 4032, 4032, - 4032, 4224, 4352, 4480, 4608, 4032, 4032, 4032, 4032, - 4224, 4352, 4480, 4608, 4096, 4096, 4096, 4096, 4288, - 4416, 4544, 4672, 4096, 4096, 4096, 4096, 4288, 4416, - 4544, 4672, 4160, 4160, 4160, 4160, 4352, 4480, 4608, - 4736, 4160, 4160, 4160, 4160, 4352, 4480, 4608, 4736, - 4224, 4224, 4224, 4224, 4416, 4544, 4672, 4800, 4224, - 4224, 4224, 4224, 4416, 4544, 4672, 4800, 4288, 4288, - 4288, 4288, 4480, 4608, 4736, 4864, 4288, 4288, 4288, - 4288, 4480, 4608, 4736, 4864, 4352, 4352, 4352, 4352, - 4544, 4672, 4800, 4928, 4352, 4352, 4352, 4352, 4544, - 4672, 4800, 4928, 4416, 4416, 4416, 4416, 4608, 4736, - 4864, 4992, 4416, 4416, 4416, 4416, 4608, 4736, 4864, - 4992, 4480, 4480, 4480, 4480, 4672, 4800, 4928, 5056, - 4480, 4480, 4480, 4480, 4672, 4800, 4928, 5056, 4544, - 4544, 4544, 4544, 4736, 4864, 4992, 5120, 4544, 4544, - 4544, 4544, 4736, 4864, 4992, 5120, 4608, 4608, 4608, - 4608, 4800, 4928, 5056, 5184, 4608, 4608, 4608, 4608, - 4800, 4928, 5056, 5184, 4672, 4672, 4672, 4672, 4864, - 4992, 5120, 5248, 4672, 4672, 4672, 4672, 4864, 4992, - 5120, 5248, 4736, 4736, 4736, 4736, 4928, 5056, 5184, - 5312, 4736, 4736, 4736, 4736, 4928, 5056, 5184, 5312, - 4800, 4800, 4800, 4800, 4992, 5120, 5248, 5376, 4800, - 4800, 4800, 4800, 4992, 5120, 5248, 5376, 4864, 4864, - 4864, 4864, 5056, 5184, 5312, 5440, 4864, 4864, 4864, - 4864, 5056, 5184, 5312, 5440, 4928, 4928, 4928, 4928, - 5120, 5248, 5376, 5504, 4928, 4928, 4928, 4928, 5120, - 5248, 5376, 5504, 4992, 4992, 4992, 4992, 5184, 5312, - 5440, 5568, 4992, 4992, 4992, 4992, 5184, 5312, 5440, - 5568, 5056, 5056, 5056, 5056, 5248, 5376, 5504, 5632, - 5056, 5056, 5056, 5056, 5248, 5376, 5504, 5632, 5120, - 5120, 5120, 5120, 5312, 5440, 5568, 5632, 5120, 5120, - 5120, 5120, 5312, 5440, 5568, 5632, 5184, 5184, 5184, - 5184, 5376, 5504, 5632, 5632, 5184, 5184, 5184, 5184, - 5376, 5504, 5632, 5632, 5248, 5248, 5248, 5248, 5440, - 5568, 5632, 5632, 5248, 5248, 5248, 5248, 5440, 5568, - 5632, 5632, 5312, 5312, 5312, 5312, 5504, 5632, 5632, - 5632, 5312, 5312, 5312, 5312, 5504, 5632, 5632, 5632, - 5376, 5376, 5376, 5376, 5568, 5632, 5632, 5632, 5376, - 5376, 5376, 5376, 5568, 5632, 5632, 5632, 5440, 5440, - 5440, 5440, 5632, 5632, 5632, 5632, 5440, 5440, 5440, - 5440, 5632, 5632, 5632, 5632, 5504, 5504, 5504, 5504, - 5632, 5632, 5632, 5632, 5504, 5504, 5504, 5504, 5632, - 5632, 5632, 5632, 5568, 5568, 5568, 5568, 5632, 5632, - 5632, 5632, 5568, 5568, 5568, 5568, 5632, 5632, 5632, - 5632 -}; - -static const int filterData2[1424] = { - 0, 2, 4, 6, 7, 9, 11, 13, 0, -2, -4, -6, -7, -9, -11, - -13, 1, 3, 5, 7, 9, 11, 13, 15, -1, -3, -5, -7, -9, - -11, -13, -15, 1, 3, 5, 7, 10, 12, 14, 16, -1, -3, -5, - -7, -10, -12, -14, -16, 1, 3, 6, 8, 11, 13, 16, 18, - -1, -3, -6, -8, -11, -13, -16, -18, 1, 4, 6, 9, 12, - 15, 17, 20, -1, -4, -6, -9, -12, -15, -17, -20, 1, 4, - 7, 10, 13, 16, 19, 22, -1, -4, -7, -10, -13, -16, -19, - -22, 1, 4, 8, 11, 14, 17, 21, 24, -1, -4, -8, -11, -14, - -17, -21, -24, 1, 5, 8, 12, 15, 19, 22, 26, -1, -5, - -8, -12, -15, -19, -22, -26, 2, 6, 10, 14, 18, 22, 26, - 30, -2, -6, -10, -14, -18, -22, -26, -30, 2, 6, 10, - 14, 19, 23, 27, 31, -2, -6, -10, -14, -19, -23, -27, - -31, 2, 7, 11, 16, 21, 26, 30, 35, -2, -7, -11, -16, - -21, -26, -30, -35, 2, 7, 13, 18, 23, 28, 34, 39, -2, - -7, -13, -18, -23, -28, -34, -39, 2, 8, 14, 20, 25, - 31, 37, 43, -2, -8, -14, -20, -25, -31, -37, -43, 3, - 9, 15, 21, 28, 34, 40, 46, -3, -9, -15, -21, -28, -34, - -40, -46, 3, 10, 17, 24, 31, 38, 45, 52, -3, -10, -17, - -24, -31, -38, -45, -52, 3, 11, 19, 27, 34, 42, 50, - 58, -3, -11, -19, -27, -34, -42, -50, -58, 4, 12, 21, - 29, 38, 46, 55, 63, -4, -12, -21, -29, -38, -46, -55, - -63, 4, 13, 23, 32, 41, 50, 60, 69, -4, -13, -23, -32, - -41, -50, -60, -69, 5, 15, 25, 35, 46, 56, 66, 76, -5, - -15, -25, -35, -46, -56, -66, -76, 5, 16, 28, 39, 50, - 61, 73, 84, -5, -16, -28, -39, -50, -61, -73, -84, 6, - 18, 31, 43, 56, 68, 81, 93, -6, -18, -31, -43, -56, - -68, -81, -93, 6, 20, 34, 48, 61, 75, 89, 103, -6, -20, - -34, -48, -61, -75, -89, -103, 7, 22, 37, 52, 67, 82, - 97, 112, -7, -22, -37, -52, -67, -82, -97, -112, 8, - 24, 41, 57, 74, 90, 107, 123, -8, -24, -41, -57, -74, - -90, -107, -123, 9, 27, 45, 63, 82, 100, 118, 136, -9, - -27, -45, -63, -82, -100, -118, -136, 10, 30, 50, 70, - 90, 110, 130, 150, -10, -30, -50, -70, -90, -110, -130, - -150, 11, 33, 55, 77, 99, 121, 143, 165, -11, -33, -55, - -77, -99, -121, -143, -165, 12, 36, 60, 84, 109, 133, - 157, 181, -12, -36, -60, -84, -109, -133, -157, -181, - 13, 40, 66, 93, 120, 147, 173, 200, -13, -40, -66, -93, - -120, -147, -173, -200, 14, 44, 73, 103, 132, 162, 191, - 221, -14, -44, -73, -103, -132, -162, -191, -221, 16, - 48, 81, 113, 146, 178, 211, 243, -16, -48, -81, -113, - -146, -178, -211, -243, 17, 53, 89, 125, 160, 196, 232, - 268, -17, -53, -89, -125, -160, -196, -232, -268, 19, - 58, 98, 137, 176, 215, 255, 294, -19, -58, -98, -137, - -176, -215, -255, -294, 21, 64, 108, 151, 194, 237, - 281, 324, -21, -64, -108, -151, -194, -237, -281, -324, - 23, 71, 118, 166, 213, 261, 308, 356, -23, -71, -118, - -166, -213, -261, -308, -356, 26, 78, 130, 182, 235, - 287, 339, 391, -26, -78, -130, -182, -235, -287, -339, - -391, 28, 86, 143, 201, 258, 316, 373, 431, -28, -86, - -143, -201, -258, -316, -373, -431, 31, 94, 158, 221, - 284, 347, 411, 474, -31, -94, -158, -221, -284, -347, - -411, -474, 34, 104, 174, 244, 313, 383, 453, 523, -34, - -104, -174, -244, -313, -383, -453, -523, 38, 115, 191, - 268, 345, 422, 498, 575, -38, -115, -191, -268, -345, - -422, -498, -575, 42, 126, 210, 294, 379, 463, 547, - 631, -42, -126, -210, -294, -379, -463, -547, -631, - 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-static const int p1s[17] = { 0, 4, 3, 4, 2, 4, 3, 4, 1, 4, 3, 4, 2, 4, 3, 4, 0 }; -static const int p2s[17] = { 0, 1, 1, 3, 1, 5, 3, 7, 1, 9, 5, 11, 3, 13, 7, 15, 1 }; - -static void soundFilter(byte *data, int16 *buffer, int p1, int p2); - -void SoundEntry::applyFilter(int16 *buffer) { - if ((READ_UINT16((int16 *)(_currentDataPtr + 2)) << 6) > 5632) { - _status.status |= kSoundStatus_20000000; - } else { - int variant = _status.status & kSoundStatusFilterVariant; - - soundFilter(_currentDataPtr, buffer, p1s[variant], p2s[variant]); - _currentDataPtr += 739; - } -} - -static void soundFilter(byte *data, int16 *buffer, int p1, int p2) { - int data1, data2, data1p, data2p; - byte idx; - - data2 = data[0]; - data1 = data[1] << 6; - - data += 2; - - for (int count = 0; count < 735; count++) { - idx = data[count] >> 4; - - if ((idx + data1) > ARRAYSIZE(filterData)) { - warning("Error in sound filter, aborting..."); - return; - } - - data1p = filterData[idx + data1]; - data2p = CLIP(filterData2[idx + data1] + data2, -32767, 32767); - - buffer[2 * count] = (p2 * data2p) >> p1; - - idx = data[count] & 0xF; - - if ((idx + data1p) > ARRAYSIZE(filterData)) { - warning("Error in sound filter, aborting..."); - return; - } - - data1 = filterData[idx + data1p]; - data2 = CLIP(filterData2[idx + data1p] + data2p, -32767, 32767); - buffer[2 * count + 1] = (p2 * data2) >> p1; - } -} - -////////////////////////////////////////////////////////////////////////// // SubtitleEntry ////////////////////////////////////////////////////////////////////////// SubtitleEntry::SubtitleEntry(LastExpressEngine *engine) : _engine(engine) { |