// Note: Only works for mono samples.
bool IMAADPCMUnpack16(int16 *target, SmpLength sampleLen, FileReader file, uint16 blockAlign)
//-------------------------------------------------------------------------------------------
{
static const int32 IMAIndexTab[8] = { -1, -1, -1, -1, 2, 4, 6, 8 };
static const int32 IMAUnpackTable[90] =
{
7, 8, 9, 10, 11, 12, 13, 14,
16, 17, 19, 21, 23, 25, 28, 31,
34, 37, 41, 45, 50, 55, 60, 66,
73, 80, 88, 97, 107, 118, 130, 143,
157, 173, 190, 209, 230, 253, 279, 307,
337, 371, 408, 449, 494, 544, 598, 658,
724, 796, 876, 963, 1060, 1166, 1282, 1411,
1552, 1707, 1878, 2066, 2272, 2499, 2749, 3024,
3327, 3660, 4026, 4428, 4871, 5358, 5894, 6484,
7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899,
15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794,
32767, 0
};
if((sampleLen < 4) || (!target) || (blockAlign < 5) || (blockAlign > file.GetLength()))
return false;
SmpLength nPos = 0;
while((nPos < sampleLen) && file.CanRead(5))
{
int32 value = file.ReadIntLE<int16>();
int32 nIndex = file.ReadIntLE<uint8>();
nIndex = Clamp(nIndex, 0, 89);
file.Skip(1);
target[nPos++] = (int16)value;
for(uint32 i = 0; (i < (blockAlign - 4u) * 2u) && (nPos < sampleLen) && file.AreBytesLeft(); i++)
{
uint8 delta;
if(i & 1)
{
delta = (file.ReadIntLE<uint8>() >> 4) & 0x0F;
} else
{
delta = file.ReadIntLE<uint8>() & 0x0F;
file.SkipBack(1);
}
int32 v = IMAUnpackTable[nIndex] >> 3;
if (delta & 1) v += IMAUnpackTable[nIndex] >> 2;
if (delta & 2) v += IMAUnpackTable[nIndex] >> 1;
if (delta & 4) v += IMAUnpackTable[nIndex];
if (delta & 8) value -= v; else value += v;
nIndex += IMAIndexTab[delta & 7];
nIndex = Clamp(nIndex, 0, 88);
target[nPos++] = static_cast<int16>(Clamp(value, -32768, 32767));
}
// Read AMS or AMS2 (newVersion = true) pattern. At least this part of the format is more or less identical between the two trackers...
static void ReadAMSPattern(CPattern &pattern, bool newVersion, FileReader &patternChunk, CSoundFile &sndFile)
//-----------------------------------------------------------------------------------------------------------
{
enum
{
emptyRow = 0xFF, // No commands on row
endOfRowMask = 0x80, // If set, no more commands on this row
noteMask = 0x40, // If set, no note+instr in this command
channelMask = 0x1F, // Mask for extracting channel
// Note flags
readNextCmd = 0x80, // One more command follows
noteDataMask = 0x7F, // Extract note
// Command flags
volCommand = 0x40, // Effect is compressed volume command
commandMask = 0x3F, // Command or volume mask
};
// Effect translation table for extended (non-Protracker) effects
static const ModCommand::COMMAND effTrans[] =
{
CMD_S3MCMDEX, // Forward / Backward
CMD_PORTAMENTOUP, // Extra fine slide up
CMD_PORTAMENTODOWN, // Extra fine slide up
CMD_RETRIG, // Retrigger
CMD_NONE,
CMD_TONEPORTAVOL, // Toneporta with fine volume slide
CMD_VIBRATOVOL, // Vibrato with fine volume slide
CMD_NONE,
CMD_PANNINGSLIDE,
CMD_NONE,
CMD_VOLUMESLIDE, // Two times finder volume slide than Axx
CMD_NONE,
CMD_CHANNELVOLUME, // Channel volume (0...127)
CMD_PATTERNBREAK, // Long pattern break (in hex)
CMD_S3MCMDEX, // Fine slide commands
CMD_NONE, // Fractional BPM
CMD_KEYOFF, // Key off at tick xx
CMD_PORTAMENTOUP, // Porta up, but uses all octaves (?)
CMD_PORTAMENTODOWN, // Porta down, but uses all octaves (?)
CMD_NONE,
CMD_NONE,
CMD_NONE,
CMD_NONE,
CMD_NONE,
CMD_NONE,
CMD_NONE,
CMD_GLOBALVOLSLIDE, // Global volume slide
CMD_NONE,
CMD_GLOBALVOLUME, // Global volume (0... 127)
};
static ModCommand dummy;
for(ROWINDEX row = 0; row < pattern.GetNumRows(); row++)
{
PatternRow baseRow = pattern.GetRow(row);
while(patternChunk.AreBytesLeft())
{
const uint8 flags = patternChunk.ReadUint8();
if(flags == emptyRow)
{
break;
}
const CHANNELINDEX chn = (flags & channelMask);
ModCommand &m = chn < pattern.GetNumChannels() ? baseRow[chn] : dummy;
bool moreCommands = true;
if(!(flags & noteMask))
{
// Read note + instr
uint8 note = patternChunk.ReadUint8();
moreCommands = (note & readNextCmd) != 0;
note &= noteDataMask;
if(note == 1)
{
m.note = NOTE_KEYOFF;
} else if(note >= 2 && note <= 121 && newVersion)
{
m.note = note - 2 + NOTE_MIN;
} else if(note >= 12 && note <= 108 && !newVersion)
{
m.note = note + 12 + NOTE_MIN;
}
m.instr = patternChunk.ReadUint8();
}
while(moreCommands)
{
// Read one more effect command
ModCommand origCmd = m;
const uint8 command = patternChunk.ReadUint8(), effect = (command & commandMask);
moreCommands = (command & readNextCmd) != 0;
if(command & volCommand)
{
m.volcmd = VOLCMD_VOLUME;
m.vol = effect;
} else
{
m.param = patternChunk.ReadUint8();
if(effect < 0x10)
{
// PT commands
m.command = effect;
sndFile.ConvertModCommand(m);
// Post-fix some commands
switch(m.command)
{
case CMD_PANNING8:
// 4-Bit panning
m.command = CMD_PANNING8;
m.param = (m.param & 0x0F) * 0x11;
break;
case CMD_VOLUME:
m.command = CMD_NONE;
m.volcmd = VOLCMD_VOLUME;
m.vol = static_cast<ModCommand::VOL>(std::min((m.param + 1) / 2, 64));
break;
case CMD_MODCMDEX:
if(m.param == 0x80)
{
// Break sample loop (cut after loop)
m.command = CMD_NONE;
} else
{
m.ExtendedMODtoS3MEffect();
}
break;
}
} else if(effect - 0x10 < (int)CountOf(effTrans))
{
// Extended commands
m.command = effTrans[effect - 0x10];
// Post-fix some commands
switch(effect)
{
case 0x10:
// Play sample forwards / backwards
if(m.param <= 0x01)
{
m.param |= 0x9E;
} else
{
m.command = CMD_NONE;
}
break;
case 0x11:
case 0x12:
// Extra fine slides
m.param = static_cast<ModCommand::PARAM>(std::min(uint8(0x0F), m.param) | 0xE0);
break;
case 0x15:
case 0x16:
// Fine slides
m.param = static_cast<ModCommand::PARAM>((std::min(0x10, m.param + 1) / 2) | 0xF0);
break;
case 0x1E:
// More fine slides
switch(m.param >> 4)
{
case 0x1:
// Fine porta up
m.command = CMD_PORTAMENTOUP;
m.param |= 0xF0;
break;
case 0x2:
// Fine porta down
m.command = CMD_PORTAMENTODOWN;
m.param |= 0xF0;
break;
case 0xA:
// Extra fine volume slide up
m.command = CMD_VOLUMESLIDE;
m.param = ((((m.param & 0x0F) + 1) / 2) << 4) | 0x0F;
break;
case 0xB:
// Extra fine volume slide down
m.command = CMD_VOLUMESLIDE;
m.param = (((m.param & 0x0F) + 1) / 2) | 0xF0;
break;
default:
m.command = CMD_NONE;
break;
}
break;
case 0x1C:
// Adjust channel volume range
m.param = static_cast<ModCommand::PARAM>(std::min((m.param + 1) / 2, 64));
break;
}
}
// Try merging commands first
ModCommand::CombineEffects(m.command, m.param, origCmd.command, origCmd.param);
if(ModCommand::GetEffectWeight(origCmd.command) > ModCommand::GetEffectWeight(m.command))
{
if(m.volcmd == VOLCMD_NONE && ModCommand::ConvertVolEffect(m.command, m.param, true))
{
// Volume column to the rescue!
m.volcmd = m.command;
m.vol = m.param;
}
m.command = origCmd.command;
m.param = origCmd.param;
}
}
}
if(flags & endOfRowMask)
{
// End of row
break;
}
}
}
OPENMPT_NAMESPACE_BEGIN
// Version changelog:
// v1.03: - Relative unicode instrument paths instead of absolute ANSI paths
// - Per-path variable string length
// - Embedded samples are IT-compressed
// (rev. 3249)
// v1.02: Explicitely updated format to use new instrument flags representation (rev. 483)
// v1.01: Added option to embed instrument headers
bool CSoundFile::ReadITProject(FileReader &file, ModLoadingFlags loadFlags)
//-------------------------------------------------------------------------
{
#ifndef MPT_EXTERNAL_SAMPLES
// Doesn't really make sense to support this format when there's no support for external files...
MPT_UNREFERENCED_PARAMETER(file);
MPT_UNREFERENCED_PARAMETER(loadFlags);
return false;
#else // MPT_EXTERNAL_SAMPLES
enum ITPSongFlags
{
ITP_EMBEDMIDICFG = 0x00001, // Embed macros in file
ITP_ITOLDEFFECTS = 0x00004, // Old Impulse Tracker effect implementations
ITP_ITCOMPATGXX = 0x00008, // IT "Compatible Gxx" (IT's flag to behave more like other trackers w/r/t portamento effects)
ITP_LINEARSLIDES = 0x00010, // Linear slides vs. Amiga slides
ITP_EXFILTERRANGE = 0x08000, // Cutoff Filter has double frequency range (up to ~10Khz)
ITP_ITPROJECT = 0x20000, // Is a project file
ITP_ITPEMBEDIH = 0x40000, // Embed instrument headers in project file
};
uint32 version;
FileReader::off_t size;
file.Rewind();
// Check file ID
if(!file.CanRead(12 + 4 + 24 + 4)
|| file.ReadUint32LE() != MAGIC4BE('.','i','t','p') // Magic bytes
|| (version = file.ReadUint32LE()) > 0x00000103 // Format version
|| version < 0x00000100)
{
return false;
} else if(loadFlags == onlyVerifyHeader)
{
return true;
}
InitializeGlobals();
file.ReadString<mpt::String::maybeNullTerminated>(songName, file.ReadUint32LE());
// Song comments
songMessage.Read(file, file.ReadUint32LE(), SongMessage::leCR);
// Song global config
const uint32 songFlags = file.ReadUint32LE();
if(!(songFlags & ITP_ITPROJECT))
{
return false;
}
if(songFlags & ITP_EMBEDMIDICFG) m_SongFlags.set(SONG_EMBEDMIDICFG);
if(songFlags & ITP_ITOLDEFFECTS) m_SongFlags.set(SONG_ITOLDEFFECTS);
if(songFlags & ITP_ITCOMPATGXX) m_SongFlags.set(SONG_ITCOMPATGXX);
if(songFlags & ITP_LINEARSLIDES) m_SongFlags.set(SONG_LINEARSLIDES);
if(songFlags & ITP_EXFILTERRANGE) m_SongFlags.set(SONG_EXFILTERRANGE);
m_nDefaultGlobalVolume = file.ReadUint32LE();
m_nSamplePreAmp = file.ReadUint32LE();
m_nDefaultSpeed = std::max(uint32(1), file.ReadUint32LE());
m_nDefaultTempo = std::max(uint32(32), file.ReadUint32LE());
m_nChannels = static_cast<CHANNELINDEX>(file.ReadUint32LE());
if(m_nChannels == 0 || m_nChannels > MAX_BASECHANNELS)
{
return false;
}
// channel name string length (=MAX_CHANNELNAME)
size = file.ReadUint32LE();
// Channels' data
for(CHANNELINDEX chn = 0; chn < m_nChannels; chn++)
{
ChnSettings[chn].nPan = static_cast<uint16>(file.ReadUint32LE());
ChnSettings[chn].dwFlags = static_cast<ChannelFlags>(file.ReadUint32LE());
ChnSettings[chn].nVolume = static_cast<uint16>(file.ReadUint32LE());
file.ReadString<mpt::String::maybeNullTerminated>(ChnSettings[chn].szName, size);
}
// Song mix plugins
{
FileReader plugChunk = file.ReadChunk(file.ReadUint32LE());
LoadMixPlugins(plugChunk);
}
// MIDI Macro config
file.ReadStructPartial(m_MidiCfg, file.ReadUint32LE());
m_MidiCfg.Sanitize();
// Song Instruments
m_nInstruments = static_cast<INSTRUMENTINDEX>(file.ReadUint32LE());
if(m_nInstruments >= MAX_INSTRUMENTS)
{
return false;
}
// Instruments' paths
if(version <= 0x00000102)
{
size = file.ReadUint32LE(); // path string length
}
std::vector<mpt::PathString> instrPaths(GetNumInstruments());
for(INSTRUMENTINDEX ins = 0; ins < GetNumInstruments(); ins++)
{
if(version > 0x00000102)
{
size = file.ReadUint32LE(); // path string length
}
std::string path;
file.ReadString<mpt::String::maybeNullTerminated>(path, size);
if(version <= 0x00000102)
{
instrPaths[ins] = mpt::PathString::FromLocaleSilent(path);
} else
{
instrPaths[ins] = mpt::PathString::FromUTF8(path);
}
}
// Song Orders
Order.ReadAsByte(file, file.ReadUint32LE());
// Song Patterns
const PATTERNINDEX numPats = static_cast<PATTERNINDEX>(file.ReadUint32LE());
const PATTERNINDEX numNamedPats = static_cast<PATTERNINDEX>(file.ReadUint32LE());
size_t patNameLen = file.ReadUint32LE(); // Size of each pattern name
FileReader pattNames = file.ReadChunk(numNamedPats * patNameLen);
// modcommand data length
size = file.ReadUint32LE();
if(size != 6)
{
return false;
}
for(PATTERNINDEX pat = 0; pat < numPats; pat++)
{
const ROWINDEX numRows = file.ReadUint32LE();
FileReader patternChunk = file.ReadChunk(numRows * size * GetNumChannels());
// Allocate pattern
if(!(loadFlags & loadPatternData) || !Patterns.Insert(pat, numRows))
{
pattNames.Skip(patNameLen);
continue;
}
if(pat < numNamedPats)
{
char patName[MAX_PATTERNNAME];
pattNames.ReadString<mpt::String::maybeNullTerminated>(patName, patNameLen);
Patterns[pat].SetName(patName);
}
// Pattern data
size_t numCommands = GetNumChannels() * numRows;
if(patternChunk.CanRead(sizeof(MODCOMMAND_ORIGINAL) * numCommands))
{
ModCommand *target = Patterns[pat].GetpModCommand(0, 0);
while(numCommands-- != 0)
{
STATIC_ASSERT(sizeof(MODCOMMAND_ORIGINAL) == 6);
MODCOMMAND_ORIGINAL data;
patternChunk.ReadStruct(data);
if(data.command >= MAX_EFFECTS) data.command = CMD_NONE;
if(data.volcmd >= MAX_VOLCMDS) data.volcmd = VOLCMD_NONE;
if(data.note > NOTE_MAX && data.note < NOTE_MIN_SPECIAL) data.note = NOTE_NONE;
*(target++) = data;
}
}
}
// Load embeded samples
// Read original number of samples
m_nSamples = static_cast<SAMPLEINDEX>(file.ReadUint32LE());
LimitMax(m_nSamples, SAMPLEINDEX(MAX_SAMPLES - 1));
// Read number of embeded samples
uint32 embeddedSamples = file.ReadUint32LE();
// Read samples
for(uint32 smp = 0; smp < embeddedSamples; smp++)
{
SAMPLEINDEX realSample = static_cast<SAMPLEINDEX>(file.ReadUint32LE());
ITSample sampleHeader;
file.ReadConvertEndianness(sampleHeader);
size = file.ReadUint32LE();
if(realSample >= 1 && realSample <= GetNumSamples() && !memcmp(sampleHeader.id, "IMPS", 4) && (loadFlags & loadSampleData))
{
sampleHeader.ConvertToMPT(Samples[realSample]);
mpt::String::Read<mpt::String::nullTerminated>(m_szNames[realSample], sampleHeader.name);
// Read sample data
sampleHeader.GetSampleFormat().ReadSample(Samples[realSample], file);
} else
{
file.Skip(size);
}
}
// Load instruments
for(INSTRUMENTINDEX ins = 0; ins < GetNumInstruments(); ins++)
{
if(instrPaths[ins].empty())
continue;
if(!file.GetFileName().empty())
{
instrPaths[ins] = instrPaths[ins].RelativePathToAbsolute(file.GetFileName().GetPath());
}
#ifdef MODPLUG_TRACKER
else if(GetpModDoc() != nullptr)
{
instrPaths[ins] = instrPaths[ins].RelativePathToAbsolute(GetpModDoc()->GetPathNameMpt().GetPath());
}
const bool mayNormalize = TrackerSettings::Instance().m_MayNormalizeSamplesOnLoad;
#else
const bool mayNormalize = false;
#endif // MODPLUG_TRACKER
InputFile f(instrPaths[ins]);
FileReader file = GetFileReader(f);
if(!ReadInstrumentFromFile(ins + 1, file, mayNormalize))
{
AddToLog(LogWarning, MPT_USTRING("Unable to open instrument: ") + instrPaths[ins].ToUnicode());
}
}
// Extra info data
uint32 code = file.ReadUint32LE();
// Embed instruments' header [v1.01]
if(version >= 0x00000101 && (songFlags & ITP_ITPEMBEDIH) && code == MAGIC4BE('E', 'B', 'I', 'H'))
{
code = file.ReadUint32LE();
INSTRUMENTINDEX ins = 1;
while(ins <= GetNumInstruments() && file.AreBytesLeft())
{
if(code == MAGIC4BE('M', 'P', 'T', 'S'))
{
break;
} else if(code == MAGIC4BE('S', 'E', 'P', '@') || code == MAGIC4BE('M', 'P', 'T', 'X'))
{
// jump code - switch to next instrument
ins++;
} else
{
ReadExtendedInstrumentProperty(Instruments[ins], code, file);
}
code = file.ReadUint32LE();
}
}
// Song extensions
if(code == MAGIC4BE('M', 'P', 'T', 'S'))
{
file.SkipBack(4);
LoadExtendedSongProperties(MOD_TYPE_IT, file);
}
m_nType = MOD_TYPE_IT;
m_nMaxPeriod = 0xF000;
m_nMinPeriod = 8;
UpgradeModFlags();
// Before OpenMPT 1.20.01.09, the MIDI macros were always read from the file, even if the "embed" flag was not set.
if(m_dwLastSavedWithVersion >= MAKE_VERSION_NUMERIC(1,20,01,09) && !m_SongFlags[SONG_EMBEDMIDICFG])
{
m_MidiCfg.Reset();
} else if(!m_MidiCfg.IsMacroDefaultSetupUsed())
{
m_SongFlags.set(SONG_EMBEDMIDICFG);
}
madeWithTracker = "OpenMPT " + MptVersion::ToStr(m_dwLastSavedWithVersion);
return true;
#endif // MPT_EXTERNAL_SAMPLES
}
bool CSoundFile::ReadITQ(FileReader &file, ModLoadingFlags loadFlags)
//------------------------------------------------------------------
{
file.Rewind();
ITFileHeader fileHeader;
if(!file.ReadConvertEndianness(fileHeader)
|| (memcmp(fileHeader.id, "ITQM", 4))
|| fileHeader.insnum > 0xFF
|| fileHeader.smpnum >= MAX_SAMPLES
|| !file.CanRead(fileHeader.ordnum + (fileHeader.insnum + fileHeader.smpnum + fileHeader.patnum) * 4))
{
return false;
} else if(loadFlags == onlyVerifyHeader)
{
return true;
}
InitializeGlobals();
bool interpretModPlugMade = false;
// OpenMPT crap at the end of file
file.Seek(file.GetLength() - 4);
size_t mptStartPos = file.ReadUint32LE();
if(mptStartPos >= file.GetLength() || mptStartPos < 0x100)
{
mptStartPos = file.GetLength();
}
if(!memcmp(fileHeader.id, "tpm.", 4))
{
// Legacy MPTM files (old 1.17.02.xx releases)
ChangeModTypeTo(MOD_TYPE_MPT);
} else
{
if(mptStartPos <= file.GetLength() - 3 && fileHeader.cwtv > 0x888 && fileHeader.cwtv <= 0xFFF)
{
file.Seek(mptStartPos);
ChangeModTypeTo(file.ReadMagic("228") ? MOD_TYPE_MPT : MOD_TYPE_IT);
} else
{
ChangeModTypeTo(MOD_TYPE_IT);
}
if(GetType() == MOD_TYPE_IT)
{
// Which tracker was used to made this?
if((fileHeader.cwtv & 0xF000) == 0x5000)
{
// OpenMPT Version number (Major.Minor)
// This will only be interpreted as "made with ModPlug" (i.e. disable compatible playback etc) if the "reserved" field is set to "OMPT" - else, compatibility was used.
m_dwLastSavedWithVersion = (fileHeader.cwtv & 0x0FFF) << 16;
if(!memcmp(fileHeader.reserved, "OMPT", 4))
interpretModPlugMade = true;
} else if(fileHeader.cmwt == 0x888 || fileHeader.cwtv == 0x888)
{
// OpenMPT 1.17 and 1.18 (raped IT format)
// Exact version number will be determined later.
interpretModPlugMade = true;
} else if(fileHeader.cwtv == 0x0217 && fileHeader.cmwt == 0x0200 && !memcmp(fileHeader.reserved, "\0\0\0\0", 4))
{
if(memchr(fileHeader.chnpan, 0xFF, sizeof(fileHeader.chnpan)) != NULL)
{
// ModPlug Tracker 1.16 (semi-raped IT format)
m_dwLastSavedWithVersion = MAKE_VERSION_NUMERIC(1, 16, 00, 00);
madeWithTracker = "ModPlug tracker 1.09 - 1.16";
} else
{
// OpenMPT 1.17 disguised as this in compatible mode,
// but never writes 0xFF in the pan map for unused channels (which is an invalid value).
m_dwLastSavedWithVersion = MAKE_VERSION_NUMERIC(1, 17, 00, 00);
madeWithTracker = "OpenMPT 1.17 (compatibility export)";
}
interpretModPlugMade = true;
} else if(fileHeader.cwtv == 0x0214 && fileHeader.cmwt == 0x0202 && !memcmp(fileHeader.reserved, "\0\0\0\0", 4))
{
// ModPlug Tracker b3.3 - 1.09, instruments 557 bytes apart
m_dwLastSavedWithVersion = MAKE_VERSION_NUMERIC(1, 09, 00, 00);
madeWithTracker = "ModPlug tracker b3.3 - 1.09";
interpretModPlugMade = true;
}
} else // case: type == MOD_TYPE_MPT
{
if (fileHeader.cwtv >= verMptFileVerLoadLimit)
{
AddToLog(str_LoadingIncompatibleVersion);
return false;
}
else if (fileHeader.cwtv > verMptFileVer)
{
AddToLog(str_LoadingMoreRecentVersion);
}
}
}
if(GetType() == MOD_TYPE_IT) mptStartPos = file.GetLength();
// Read row highlights
if((fileHeader.special & ITFileHeader::embedPatternHighlights))
{
// MPT 1.09, 1.07 and most likely other old MPT versions leave this blank (0/0), but have the "special" flag set.
// Newer versions of MPT and OpenMPT 1.17 *always* write 4/16 here.
// Thus, we will just ignore those old versions.
if(m_dwLastSavedWithVersion == 0 || m_dwLastSavedWithVersion >= MAKE_VERSION_NUMERIC(1, 17, 03, 02))
{
m_nDefaultRowsPerBeat = fileHeader.highlight_minor;
m_nDefaultRowsPerMeasure = fileHeader.highlight_major;
}
#ifdef _DEBUG
if((fileHeader.highlight_minor | fileHeader.highlight_major) == 0)
{
Log("IT Header: Row highlight is 0");
}
#endif
}
m_SongFlags.set(SONG_LINEARSLIDES, (fileHeader.flags & ITFileHeader::linearSlides) != 0);
m_SongFlags.set(SONG_ITOLDEFFECTS, (fileHeader.flags & ITFileHeader::itOldEffects) != 0);
m_SongFlags.set(SONG_ITCOMPATGXX, (fileHeader.flags & ITFileHeader::itCompatGxx) != 0);
m_SongFlags.set(SONG_EMBEDMIDICFG, (fileHeader.flags & ITFileHeader::reqEmbeddedMIDIConfig) || (fileHeader.special & ITFileHeader::embedMIDIConfiguration));
m_SongFlags.set(SONG_EXFILTERRANGE, (fileHeader.flags & ITFileHeader::extendedFilterRange) != 0);
mpt::String::Read<mpt::String::spacePadded>(songName, fileHeader.songname);
// Global Volume
m_nDefaultGlobalVolume = fileHeader.globalvol << 1;
if(m_nDefaultGlobalVolume > MAX_GLOBAL_VOLUME) m_nDefaultGlobalVolume = MAX_GLOBAL_VOLUME;
if(fileHeader.speed) m_nDefaultSpeed = fileHeader.speed;
m_nDefaultTempo = std::max(uint8(32), fileHeader.tempo); // Tempo 31 is possible. due to conflicts with the rest of the engine, let's just clamp it to 32.
m_nSamplePreAmp = std::min(fileHeader.mv, uint8(128));
// Reading Channels Pan Positions
for(CHANNELINDEX i = 0; i < 64; i++) if(fileHeader.chnpan[i] != 0xFF)
{
ChnSettings[i].Reset();
ChnSettings[i].nVolume = Clamp(fileHeader.chnvol[i], uint8(0), uint8(64));
if(fileHeader.chnpan[i] & 0x80) ChnSettings[i].dwFlags.set(CHN_MUTE);
uint8 n = fileHeader.chnpan[i] & 0x7F;
if(n <= 64) ChnSettings[i].nPan = n * 4;
if(n == 100) ChnSettings[i].dwFlags.set(CHN_SURROUND);
}
// Reading orders
file.Seek(sizeof(ITFileHeader));
if(GetType() == MOD_TYPE_IT)
{
Order.ReadAsByte(file, fileHeader.ordnum);
} else
{
if(fileHeader.cwtv > 0x88A && fileHeader.cwtv <= 0x88D)
{
Order.Deserialize(file);
} else
{
Order.ReadAsByte(file, fileHeader.ordnum);
// Replacing 0xFF and 0xFE with new corresponding indexes
Order.Replace(0xFE, Order.GetIgnoreIndex());
Order.Replace(0xFF, Order.GetInvalidPatIndex());
}
}
// Reading instrument, sample and pattern offsets
std::vector<uint32> insPos, smpPos, patPos;
file.ReadVectorLE(insPos, fileHeader.insnum);
file.ReadVectorLE(smpPos, fileHeader.smpnum);
file.ReadVectorLE(patPos, fileHeader.patnum);
// Find the first parapointer.
// This is used for finding out whether the edit history is actually stored in the file or not,
// as some early versions of Schism Tracker set the history flag, but didn't save anything.
// We will consider the history invalid if it ends after the first parapointer.
uint32 minPtr = Util::MaxValueOfType(minPtr);
for(uint16 n = 0; n < fileHeader.insnum; n++)
{
if(insPos[n] > 0)
{
minPtr = std::min(minPtr, insPos[n]);
}
}
for(uint16 n = 0; n < fileHeader.smpnum; n++)
{
if(smpPos[n] > 0)
{
minPtr = std::min(minPtr, smpPos[n]);
}
}
for(uint16 n = 0; n < fileHeader.patnum; n++)
{
if(patPos[n] > 0)
{
minPtr = std::min(minPtr, patPos[n]);
}
}
if(fileHeader.special & ITFileHeader::embedSongMessage)
{
minPtr = std::min(minPtr, fileHeader.msgoffset);
}
// Reading IT Edit History Info
// This is only supposed to be present if bit 1 of the special flags is set.
// However, old versions of Schism and probably other trackers always set this bit
// even if they don't write the edit history count. So we have to filter this out...
// This is done by looking at the parapointers. If the history data end after
// the first parapointer, we assume that it's actually no history data.
if(fileHeader.special & ITFileHeader::embedEditHistory)
{
const uint16 nflt = file.ReadUint16LE();
if(file.CanRead(nflt * sizeof(ITHistoryStruct)) && file.GetPosition() + nflt * sizeof(ITHistoryStruct) <= minPtr)
{
m_FileHistory.reserve(nflt);
for(size_t n = 0; n < nflt; n++)
{
FileHistory mptHistory;
ITHistoryStruct itHistory;
file.ReadConvertEndianness(itHistory);
itHistory.ConvertToMPT(mptHistory);
m_FileHistory.push_back(mptHistory);
}
} else
{
// Oops, we were not supposed to read this.
file.SkipBack(2);
}
} else if(fileHeader.highlight_major == 0 && fileHeader.highlight_minor == 0 && fileHeader.cmwt == 0x0214 && fileHeader.cwtv == 0x0214 && !memcmp(fileHeader.reserved, "\0\0\0\0", 4) && (fileHeader.special & (ITFileHeader::embedEditHistory | ITFileHeader::embedPatternHighlights)) == 0)
{
// Another non-conforming application is unmo3 < v2.4.0.1, which doesn't set the special bit
// at all, but still writes the two edit history length bytes (zeroes)...
if(file.ReadUint16LE() != 0)
{
// These were not zero bytes -> We're in the wrong place!
file.SkipBack(2);
madeWithTracker = "UNMO3";
}
}
// Reading MIDI Output & Macros
if(m_SongFlags[SONG_EMBEDMIDICFG] && file.Read(m_MidiCfg))
{
m_MidiCfg.Sanitize();
}
// Ignore MIDI data. Fixes some files like denonde.it that were made with old versions of Impulse Tracker (which didn't support Zxx filters) and have Zxx effects in the patterns.
if(fileHeader.cwtv < 0x0214)
{
MemsetZero(m_MidiCfg.szMidiSFXExt);
MemsetZero(m_MidiCfg.szMidiZXXExt);
m_SongFlags.set(SONG_EMBEDMIDICFG);
}
if(file.ReadMagic("MODU"))
{
madeWithTracker = "BeRoTracker";
}
// Read pattern names: "PNAM"
FileReader patNames;
if(file.ReadMagic("PNAM"))
{
patNames = file.GetChunk(file.ReadUint32LE());
}
m_nChannels = GetModSpecifications().channelsMin;
// Read channel names: "CNAM"
if(file.ReadMagic("CNAM"))
{
FileReader chnNames = file.GetChunk(file.ReadUint32LE());
const CHANNELINDEX readChns = std::min(MAX_BASECHANNELS, static_cast<CHANNELINDEX>(chnNames.GetLength() / MAX_CHANNELNAME));
m_nChannels = readChns;
for(CHANNELINDEX i = 0; i < readChns; i++)
{
chnNames.ReadString<mpt::String::maybeNullTerminated>(ChnSettings[i].szName, MAX_CHANNELNAME);
}
}
// Read mix plugins information
if(file.CanRead(9))
{
LoadMixPlugins(file);
}
// Read Song Message
if(fileHeader.special & ITFileHeader::embedSongMessage)
{
if(fileHeader.msglength > 0 && file.Seek(fileHeader.msgoffset))
{
// Generally, IT files should use CR for line endings. However, ChibiTracker uses LF. One could do...
// if(itHeader.cwtv == 0x0214 && itHeader.cmwt == 0x0214 && itHeader.reserved == ITFileHeader::chibiMagic) --> Chibi detected.
// But we'll just use autodetection here:
songMessage.Read(file, fileHeader.msglength, SongMessage::leAutodetect);
}
}
// Reading Instruments
m_nInstruments = 0;
if(fileHeader.flags & ITFileHeader::instrumentMode)
{
m_nInstruments = std::min(fileHeader.insnum, INSTRUMENTINDEX(MAX_INSTRUMENTS - 1));
}
for(INSTRUMENTINDEX i = 0; i < GetNumInstruments(); i++)
{
if(insPos[i] > 0 && file.Seek(insPos[i]) && file.CanRead(fileHeader.cmwt < 0x200 ? sizeof(ITOldInstrument) : sizeof(ITInstrument)))
{
ModInstrument *instrument = AllocateInstrument(i + 1);
if(instrument != nullptr)
{
ITInstrToMPT(file, *instrument, fileHeader.cmwt);
// MIDI Pitch Wheel Depth is a global setting in IT. Apply it to all instruments.
instrument->midiPWD = fileHeader.pwd;
}
}
}
// In order to properly compute the position, in file, of eventual extended settings
// such as "attack" we need to keep the "real" size of the last sample as those extra
// setting will follow this sample in the file
FileReader::off_t lastSampleOffset = 0;
if(fileHeader.smpnum > 0)
{
lastSampleOffset = smpPos[fileHeader.smpnum - 1] + sizeof(ITSample);
}
//// #ITQ
// Reading Samples
m_nSamples = std::min(fileHeader.smpnum, SAMPLEINDEX(MAX_SAMPLES - 1));
size_t nbytes = 0; // size of sample data in file
for(SAMPLEINDEX i = 0; i < GetNumSamples(); i++)
{
ITQSample sampleHeader;
if(smpPos[i] > 0 && file.Seek(smpPos[i]) && file.ReadConvertEndianness(sampleHeader))
{
if(!memcmp(sampleHeader.id, "ITQS", 4))
{
size_t sampleOffset = sampleHeader.ConvertToMPT(Samples[i + 1]);
mpt::String::Read<mpt::String::spacePadded>(m_szNames[i + 1], sampleHeader.name);
if((loadFlags & loadSampleData) && file.Seek(sampleOffset))
{
Samples[i+1].originalSize = sampleHeader.nbytes;
sampleHeader.GetSampleFormatITQ(fileHeader.cwtv).ReadSample(Samples[i + 1], file);
lastSampleOffset = std::max(lastSampleOffset, file.GetPosition());
}
}
}
}
m_nSamples = std::max(SAMPLEINDEX(1), GetNumSamples());
m_nMinPeriod = 8;
m_nMaxPeriod = 0xF000;
PATTERNINDEX numPats = std::min(static_cast<PATTERNINDEX>(patPos.size()), GetModSpecifications().patternsMax);
if(numPats != patPos.size())
{
// Hack: Notify user here if file contains more patterns than what can be read.
AddToLog(mpt::String::Print(str_PatternSetTruncationNote, patPos.size(), numPats));
}
if(!(loadFlags & loadPatternData))
{
numPats = 0;
}
// Checking for number of used channels, which is not explicitely specified in the file.
for(PATTERNINDEX pat = 0; pat < numPats; pat++)
{
if(patPos[pat] == 0 || !file.Seek(patPos[pat]))
continue;
uint16 len = file.ReadUint16LE();
ROWINDEX numRows = file.ReadUint16LE();
if(numRows < GetModSpecifications().patternRowsMin
|| numRows > GetModSpecifications().patternRowsMax
|| !file.Skip(4))
continue;
FileReader patternData = file.GetChunk(len);
ROWINDEX row = 0;
std::vector<uint8> chnMask(GetNumChannels());
while(row < numRows && patternData.AreBytesLeft())
{
uint8 b = patternData.ReadUint8();
if(!b)
{
row++;
continue;
}
CHANNELINDEX ch = (b & IT_bitmask_patternChanField_c); // 0x7f We have some data grab a byte keeping only 7 bits
if(ch)
{
ch = (ch - 1);// & IT_bitmask_patternChanMask_c; // 0x3f mask of the byte again, keeping only 6 bits
}
if(ch >= chnMask.size())
{
chnMask.resize(ch + 1, 0);
}
if(b & IT_bitmask_patternChanEnabled_c) // 0x80 check if the upper bit is enabled.
{
chnMask[ch] = patternData.ReadUint8(); // set the channel mask for this channel.
}
// Channel used
if(chnMask[ch] & 0x0F) // if this channel is used set m_nChannels
{
if(ch >= GetNumChannels() && ch < MAX_BASECHANNELS)
{
m_nChannels = ch + 1;
}
}
// Now we actually update the pattern-row entry the note,instrument etc.
// Note
if(chnMask[ch] & 1) patternData.Skip(1);
// Instrument
if(chnMask[ch] & 2) patternData.Skip(1);
// Volume
if(chnMask[ch] & 4) patternData.Skip(1);
// Effect
if(chnMask[ch] & 8) patternData.Skip(2);
}
}
// Compute extra instruments settings position
if(lastSampleOffset > 0)
{
file.Seek(lastSampleOffset);
}
// Load instrument and song extensions.
LoadExtendedInstrumentProperties(file, &interpretModPlugMade);
if(interpretModPlugMade)
{
m_nMixLevels = mixLevels_original;
}
// We need to do this here, because if there no samples (so lastSampleOffset = 0), we need to look after the last pattern (sample data normally follows pattern data).
// And we need to do this before reading the patterns because m_nChannels might be modified by LoadExtendedSongProperties. *sigh*
LoadExtendedSongProperties(GetType(), file, &interpretModPlugMade);
m_nTempoMode = tempo_mode_modern;
// Reading Patterns
Patterns.ResizeArray(std::max(MAX_PATTERNS, numPats));
for(PATTERNINDEX pat = 0; pat < numPats; pat++)
{
if(patPos[pat] == 0 || !file.Seek(patPos[pat]))
{
// Empty 64-row pattern
if(Patterns.Insert(pat, 64))
{
AddToLog(mpt::String::Print("Allocating patterns failed starting from pattern %1", pat));
break;
}
// Now (after the Insert() call), we can read the pattern name.
CopyPatternName(Patterns[pat], patNames);
continue;
}
uint16 len = file.ReadUint16LE();
ROWINDEX numRows = file.ReadUint16LE();
if(numRows < GetModSpecifications().patternRowsMin
|| numRows > GetModSpecifications().patternRowsMax
|| !file.Skip(4)
|| Patterns.Insert(pat, numRows))
continue;
FileReader patternData = file.GetChunk(len);
// Now (after the Insert() call), we can read the pattern name.
CopyPatternName(Patterns[pat], patNames);
std::vector<uint8> chnMask(GetNumChannels());
std::vector<ModCommand> lastValue(GetNumChannels(), ModCommand::Empty());
ModCommand *m = Patterns[pat];
ROWINDEX row = 0;
while(row < numRows && patternData.AreBytesLeft())
{
uint8 b = patternData.ReadUint8();
if(!b)
{
row++;
m += GetNumChannels();
continue;
}
CHANNELINDEX ch = b & IT_bitmask_patternChanField_c; // 0x7f
if(ch)
{
ch = (ch - 1); //& IT_bitmask_patternChanMask_c; // 0x3f
}
if(ch >= chnMask.size())
{
chnMask.resize(ch + 1, 0);
lastValue.resize(ch + 1, ModCommand::Empty());
ASSERT(chnMask.size() <= GetNumChannels());
}
if(b & IT_bitmask_patternChanEnabled_c) // 0x80
{
chnMask[ch] = patternData.ReadUint8();
}
// Now we grab the data for this particular row/channel.
if((chnMask[ch] & 0x10) && (ch < m_nChannels))
{
m[ch].note = lastValue[ch].note;
}
if((chnMask[ch] & 0x20) && (ch < m_nChannels))
{
m[ch].instr = lastValue[ch].instr;
}
if((chnMask[ch] & 0x40) && (ch < m_nChannels))
{
m[ch].volcmd = lastValue[ch].volcmd;
m[ch].vol = lastValue[ch].vol;
}
if((chnMask[ch] & 0x80) && (ch < m_nChannels))
{
m[ch].command = lastValue[ch].command;
m[ch].param = lastValue[ch].param;
}
if(chnMask[ch] & 1) // Note
{
uint8 note = patternData.ReadUint8();
if(ch < m_nChannels)
{
if(note < 0x80) note++;
if(!(GetType() & MOD_TYPE_MPT))
{
if(note > NOTE_MAX && note < 0xFD) note = NOTE_FADE;
else if(note == 0xFD) note = NOTE_NONE;
}
m[ch].note = note;
lastValue[ch].note = note;
}
}
if(chnMask[ch] & 2)
{
uint8 instr = patternData.ReadUint8();
if(ch < m_nChannels)
{
m[ch].instr = instr;
lastValue[ch].instr = instr;
}
}
if(chnMask[ch] & 4)
{
uint8 vol = patternData.ReadUint8();
if(ch < m_nChannels)
{
// 0-64: Set Volume
if(vol <= 64) { m[ch].volcmd = VOLCMD_VOLUME; m[ch].vol = vol; } else
// 128-192: Set Panning
if(vol >= 128 && vol <= 192) { m[ch].volcmd = VOLCMD_PANNING; m[ch].vol = vol - 128; } else
// 65-74: Fine Volume Up
if(vol < 75) { m[ch].volcmd = VOLCMD_FINEVOLUP; m[ch].vol = vol - 65; } else
// 75-84: Fine Volume Down
if(vol < 85) { m[ch].volcmd = VOLCMD_FINEVOLDOWN; m[ch].vol = vol - 75; } else
// 85-94: Volume Slide Up
if(vol < 95) { m[ch].volcmd = VOLCMD_VOLSLIDEUP; m[ch].vol = vol - 85; } else
// 95-104: Volume Slide Down
if(vol < 105) { m[ch].volcmd = VOLCMD_VOLSLIDEDOWN; m[ch].vol = vol - 95; } else
// 105-114: Pitch Slide Up
if(vol < 115) { m[ch].volcmd = VOLCMD_PORTADOWN; m[ch].vol = vol - 105; } else
// 115-124: Pitch Slide Down
if(vol < 125) { m[ch].volcmd = VOLCMD_PORTAUP; m[ch].vol = vol - 115; } else
// 193-202: Portamento To
if(vol >= 193 && vol <= 202) { m[ch].volcmd = VOLCMD_TONEPORTAMENTO; m[ch].vol = vol - 193; } else
// 203-212: Vibrato depth
if(vol >= 203 && vol <= 212)
{
m[ch].volcmd = VOLCMD_VIBRATODEPTH; m[ch].vol = vol - 203;
// Old versions of ModPlug saved this as vibrato speed instead, so let's fix that.
if(m[ch].vol && m_dwLastSavedWithVersion && m_dwLastSavedWithVersion <= MAKE_VERSION_NUMERIC(1, 17, 02, 54))
m[ch].volcmd = VOLCMD_VIBRATOSPEED;
} else
// 213-222: Unused (was velocity)
// 223-232: Offset
if(vol >= 223 && vol <= 232) { m[ch].volcmd = VOLCMD_OFFSET; m[ch].vol = vol - 223; }
lastValue[ch].volcmd = m[ch].volcmd;
lastValue[ch].vol = m[ch].vol;
}
}
// Reading command/param
if(chnMask[ch] & 8)
{
uint8 cmd = patternData.ReadUint8();
uint8 param = patternData.ReadUint8();
if(ch < m_nChannels)
{
if(cmd)
{
m[ch].command = cmd;
m[ch].param = param;
S3MConvert(m[ch], true);
lastValue[ch].command = m[ch].command;
lastValue[ch].param = m[ch].param;
}
}
}
}
}
UpgradeModFlags();
if(!m_dwLastSavedWithVersion && fileHeader.cwtv == 0x0888)
{
// There are some files with OpenMPT extensions, but the "last saved with" field contains 0.
// Was there an OpenMPT version that wrote 0 there, or are they hacked?
m_dwLastSavedWithVersion = MAKE_VERSION_NUMERIC(1, 17, 00, 00);
}
if(m_dwLastSavedWithVersion && madeWithTracker.empty())
{
madeWithTracker = "OpenMPT " + MptVersion::ToStr(m_dwLastSavedWithVersion);
if(memcmp(fileHeader.reserved, "OMPT", 4) && (fileHeader.cwtv & 0xF000) == 0x5000)
{
madeWithTracker += " (compatibility export)";
} else if(MptVersion::IsTestBuild(m_dwLastSavedWithVersion))
{
madeWithTracker += " (test build)";
}
} else
{
switch(fileHeader.cwtv >> 12)
{
case 0:
if(!madeWithTracker.empty())
{
// BeRoTracker has been detected above.
} else if(fileHeader.cwtv == 0x0214 && fileHeader.cmwt == 0x0200 && fileHeader.flags == 9 && fileHeader.special == 0
&& fileHeader.highlight_major == 0 && fileHeader.highlight_minor == 0
&& fileHeader.insnum == 0 && fileHeader.patnum + 1 == fileHeader.ordnum
&& fileHeader.globalvol == 128 && fileHeader.mv == 100 && fileHeader.speed == 1 && fileHeader.sep == 128 && fileHeader.pwd == 0
&& fileHeader.msglength == 0 && fileHeader.msgoffset == 0 && !memcmp(fileHeader.reserved, "\0\0\0\0", 4))
{
madeWithTracker = "OpenSPC conversion";
} else if(fileHeader.cwtv == 0x0214 && fileHeader.cmwt == 0x0200 && !memcmp(fileHeader.reserved, "\0\0\0\0", 4))
{
// ModPlug Tracker 1.00a5, instruments 560 bytes apart
m_dwLastSavedWithVersion = MAKE_VERSION_NUMERIC(1, 00, 00, A5);
madeWithTracker = "ModPlug tracker 1.00a5";
interpretModPlugMade = true;
} else if(fileHeader.cwtv == 0x0214 && fileHeader.cmwt == 0x0214 && !memcmp(fileHeader.reserved, "CHBI", 4))
{
madeWithTracker = "ChibiTracker";
} else if(fileHeader.cwtv == 0x0214 && fileHeader.cmwt == 0x0214 && !(fileHeader.special & 3) && !memcmp(fileHeader.reserved, "\0\0\0\0", 4) && !strcmp(Samples[1].filename, "XXXXXXXX.YYY"))
{
madeWithTracker = "CheeseTracker";
} else
{
if(fileHeader.cmwt > 0x0214)
{
madeWithTracker = "Impulse Tracker 2.15";
} else if(fileHeader.cwtv > 0x0214)
{
// Patched update of IT 2.14 (0x0215 - 0x0217 == p1 - p3)
// p4 (as found on modland) adds the ITVSOUND driver, but doesn't seem to change
// anything as far as file saving is concerned.
madeWithTracker = mpt::String::Print("Impulse Tracker 2.14p%1", fileHeader.cwtv - 0x0214);
} else
{
madeWithTracker = mpt::String::Print("Impulse Tracker %1.%2", (fileHeader.cwtv & 0x0F00) >> 8, mpt::fmt::hex0<2>((fileHeader.cwtv & 0xFF)));
}
}
break;
case 1:
madeWithTracker = GetSchismTrackerVersion(fileHeader.cwtv);
break;
case 6:
madeWithTracker = "BeRoTracker";
break;
case 7:
madeWithTracker = mpt::String::Print("ITMCK %1.%2.%3", (fileHeader.cwtv >> 8) & 0x0F, (fileHeader.cwtv >> 4) & 0x0F, fileHeader.cwtv & 0x0F);
break;
}
}
if(GetType() == MOD_TYPE_IT)
{
// Set appropriate mod flags if the file was not made with MPT.
if(!interpretModPlugMade)
{
SetModFlag(MSF_MIDICC_BUGEMULATION, false);
SetModFlag(MSF_OLDVOLSWING, false);
SetModFlag(MSF_COMPATIBLE_PLAY, true);
}
} else
{
//START - mpt specific:
//Using member cwtv on pifh as the version number.
const uint16 version = fileHeader.cwtv;
if(version > 0x889 && file.Seek(mptStartPos))
{
std::istringstream iStrm(std::string(file.GetRawData(), file.BytesLeft()));
if(version >= 0x88D)
{
srlztn::SsbRead ssb(iStrm);
ssb.BeginRead("mptm", MptVersion::num);
ssb.ReadItem(GetTuneSpecificTunings(), "0", 1, &ReadTuningCollection);
ssb.ReadItem(*this, "1", 1, &ReadTuningMap);
ssb.ReadItem(Order, "2", 1, &ReadModSequenceOld);
ssb.ReadItem(Patterns, FileIdPatterns, strlen(FileIdPatterns), &ReadModPatterns);
ssb.ReadItem(Order, FileIdSequences, strlen(FileIdSequences), &ReadModSequences);
if(ssb.m_Status & srlztn::SNT_FAILURE)
{
AddToLog("Unknown error occured while deserializing file.");
}
} else //Loading for older files.
{
if(GetTuneSpecificTunings().Deserialize(iStrm))
{
AddToLog("Error occured - loading failed while trying to load tune specific tunings.");
} else
{
ReadTuningMap(iStrm, *this);
}
}
} //version condition(MPT)
}
return true;
}
