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/*
* Load_kris.cpp
* -------------
* Purpose: ChipTracker loader
* Notes : Another NoiseTracker variant, storing tracks instead of patterns (like ICE / ST26)
* Authors: OpenMPT Devs
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
*/
#include "stdafx.h"
#include "Loaders.h"
#include "MODTools.h"
OPENMPT_NAMESPACE_BEGIN
CSoundFile::ProbeResult CSoundFile::ProbeFileHeaderKRIS(MemoryFileReader file, const uint64 *pfilesize)
{
if(!file.CanRead(952 + 4))
return ProbeWantMoreData;
file.Seek(952);
if(!file.ReadMagic("KRIS"))
return ProbeFailure;
const auto [numOrders, restartPos] = file.ReadArray<uint8, 2>();
if(numOrders > 128 || restartPos > 127)
return ProbeFailure;
file.Seek(22);
uint32 invalidBytes = 0;
for(SAMPLEINDEX smp = 1; smp <= 31; smp++)
{
MODSampleHeader sampleHeader;
file.ReadStruct(sampleHeader);
if(sampleHeader.name[0] != 0)
invalidBytes += sampleHeader.GetInvalidByteScore();
if(invalidBytes > MODSampleHeader::INVALID_BYTE_THRESHOLD)
return ProbeFailure;
}
MPT_UNREFERENCED_PARAMETER(pfilesize);
return ProbeSuccess;
}
bool CSoundFile::ReadKRIS(FileReader &file, ModLoadingFlags loadFlags)
{
if(!file.Seek(952) || !file.ReadMagic("KRIS"))
return false;
const auto [numOrders, restartPos] = file.ReadArray<uint8, 2>();
if(numOrders > 128 || restartPos > 127)
return false;
std::array<std::array<uint8, 2>, 128 * 4> tracks;
if(!file.ReadArray(tracks))
return false;
uint32 tracksOffset = 1984;
InitializeGlobals(MOD_TYPE_MOD, 4);
file.Seek(0);
file.ReadString<mpt::String::spacePadded>(m_songName, 22);
m_nSamples = 31;
uint32 invalidBytes = 0;
uint8 numSynthWaveforms = 0;
for(SAMPLEINDEX smp = 1; smp <= m_nSamples; smp++)
{
MODSampleHeader sampleHeader;
file.ReadStruct(sampleHeader);
if(sampleHeader.name[0] != 0)
{
invalidBytes += ReadMODSample(sampleHeader, Samples[smp], m_szNames[smp], true);
} else
{
// Unfinished feature. Synth parameters are stored in the module, but loading and saving of synth waveforms
// (which I'd assume the extra space before the track data is reserved for) is completely absent, making the feature useless.
Samples[smp].Initialize(MOD_TYPE_MOD);
m_szNames[smp] = "Synthetic";
const uint8 maxWaveform = std::max({ sampleHeader.name[1], sampleHeader.name[5], sampleHeader.name[10], sampleHeader.name[19] });
if(maxWaveform)
numSynthWaveforms = std::max(numSynthWaveforms, static_cast<uint8>(maxWaveform + 1));
}
if(invalidBytes > MODSampleHeader::INVALID_BYTE_THRESHOLD)
return false;
}
tracksOffset += numSynthWaveforms * 64u;
if(loadFlags == onlyVerifyHeader)
return true;
SetupMODPanning(true);
Order().SetDefaultSpeed(6);
Order().SetDefaultTempoInt(125);
Order().SetRestartPos(restartPos);
m_nMinPeriod = 113 * 4;
m_nMaxPeriod = 856 * 4;
m_nSamplePreAmp = 64;
m_SongFlags.set(SONG_PT_MODE | SONG_IMPORTED | SONG_FORMAT_NO_VOLCOL);
m_playBehaviour.set(kMODIgnorePanning);
m_playBehaviour.set(kMODSampleSwap);
Order().resize(numOrders);
if(loadFlags & loadPatternData)
Patterns.ResizeArray(numOrders);
for(PATTERNINDEX pat = 0; pat < numOrders; pat++)
{
if(!(loadFlags & loadPatternData) || !Patterns.Insert(pat, 64))
break;
Order()[pat] = pat;
for(CHANNELINDEX chn = 0; chn < 4; chn++)
{
const uint8 track = tracks[pat * 4u + chn][0];
const int8 transpose = tracks[pat * 4u + chn][1];
if(!file.Seek(tracksOffset + track * 256u))
return false;
ModCommand *m = Patterns[pat].GetpModCommand(0, chn);
for(ROWINDEX row = 0; row < 64; row++, m += 4)
{
const auto data = file.ReadArray<uint8, 4>();
if(data[0] & 1)
return false;
if(data[0] >= 0x18 && data[0] <= 0x9E)
m->note = static_cast<ModCommand::NOTE>(Clamp(NOTE_MIDDLEC - 36 + (data[0] - 0x18) / 2 + transpose, NOTE_MIDDLEC - 12, NOTE_MIDDLEC + 23));
else if(data[0] != 0xA8)
return false;
if(data[2] >> 4)
return false;
m->instr = data[1];
ConvertModCommand(*m, data[2] & 0x0F, data[3]);
}
}
}
m_modFormat.formatName = UL_("ChipTracker");
m_modFormat.type = UL_("mod");
m_modFormat.madeWithTracker = UL_("ChipTracker");
m_modFormat.charset = mpt::Charset::Amiga_no_C1;
if(loadFlags & loadSampleData)
{
uint8 maxTrack = 0;
for(uint32 ord = 0; ord < numOrders * 4u; ord++)
{
maxTrack = std::max(tracks[ord][0], maxTrack);
}
file.Seek(tracksOffset + (maxTrack + 1u) * 256u);
for(SAMPLEINDEX smp = 1; smp <= m_nSamples; smp++)
if(Samples[smp].nLength)
{
SampleIO(
SampleIO::_8bit,
SampleIO::mono,
SampleIO::littleEndian,
SampleIO::signedPCM)
.ReadSample(Samples[smp], file);
}
}
return true;
}
OPENMPT_NAMESPACE_END
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