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#ifndef LOAD_OP2_H
#define LOAD_OP2_H
#include "../progs_cache.h"
#ifndef COMMON_H
#include "common.h"
#endif
#ifndef _MSC_VER
#define PACKED_STRUCT __attribute__((packed))
#else
#define PACKED_STRUCT
#endif
#ifdef _MSC_VER
#pragma pack(push,1)
#endif
struct Doom_OPL2instrument
{
uint8_t trem_vibr_1; /* OP 1: tremolo/vibrato/sustain/KSR/multi */
uint8_t att_dec_1; /* OP 1: attack rate/decay rate */
uint8_t sust_rel_1; /* OP 1: sustain level/release rate */
uint8_t wave_1; /* OP 1: waveform select */
uint8_t scale_1; /* OP 1: key scale level */
uint8_t level_1; /* OP 1: output level */
uint8_t feedback; /* feedback/AM-FM (both operators) */
uint8_t trem_vibr_2; /* OP 2: tremolo/vibrato/sustain/KSR/multi */
uint8_t att_dec_2; /* OP 2: attack rate/decay rate */
uint8_t sust_rel_2; /* OP 2: sustain level/release rate */
uint8_t wave_2; /* OP 2: waveform select */
uint8_t scale_2; /* OP 2: key scale level */
uint8_t level_2; /* OP 2: output level */
uint8_t unused;
uint8_t basenote[2]; /* base note offset */
} PACKED_STRUCT;
struct Doom_opl_instr
{
uint8_t flags[2];
#define FL_FIXED_PITCH 0x0001 // note has fixed pitch (drum note)
#define FL_VIB_DELAY 0x0002 // vib_delay (used in instrument #65 only)
#define FL_DOUBLE_VOICE 0x0004 // use two voices instead of one
uint8_t finetune;
uint8_t note;
struct Doom_OPL2instrument patchdata[2];
} PACKED_STRUCT;
#ifdef _MSC_VER
#pragma pack(pop)
#endif
bool BankFormats::LoadDoom(BanksDump &db, const char *fn, unsigned bank, const std::string &bankTitle, const char *prefix)
{
#ifdef HARD_BANKS
writeIni("OP2", fn, prefix, bank, INI_Both);
#endif
FILE *fp = std::fopen(fn, "rb");
if(!fp)
return false;
std::fseek(fp, 0, SEEK_END);
std::vector<unsigned char> data(size_t(std::ftell(fp)));
std::rewind(fp);
if(std::fread(&data[0], 1, data.size(), fp) != data.size())
{
std::fclose(fp);
return false;
}
std::fclose(fp);
size_t bankDb = db.initBank(bank, bankTitle, BanksDump::BankEntry::SETUP_DMX);
BanksDump::MidiBank bnkMelodique;
BanksDump::MidiBank bnkPercussion;
for(unsigned a = 0; a < 175; ++a)
{
const size_t offset1 = 0x18A4 + a * 32;
const size_t offset2 = 8 + a * 36;
bool isDrum = a >= 128;
BanksDump::MidiBank &bnk = isDrum ? bnkPercussion : bnkMelodique;
BanksDump::InstrumentEntry inst;
BanksDump::Operator ops[5];
std::string name;
for(unsigned p = 0; p < 32; ++p)
{
if(data[offset1] != '\0')
name += char(data[offset1 + p]);
}
//printf("%3d %3d %3d %8s: ", a,b,c, name.c_str());
int gmno = int(a < 128 ? a : ((a | 128) + 35));
size_t patchId = isDrum ? ((a - 128) + 35) : a;
char name2[512];
snprintf(name2, 512, "%s%c%u", prefix, (gmno < 128 ? 'M' : 'P'), gmno & 127);
Doom_opl_instr &ins = *(Doom_opl_instr *) &data[offset2];
uint16_t flags = toSint16LE(ins.flags);
InstBuffer tmp[2] = {MakeNoSoundIns1(), MakeNoSoundIns1()};
int16_t noteOffset[2];
for(size_t index = 0; index < 2; ++index)
{
const Doom_OPL2instrument &src = ins.patchdata[index];
tmp[index].d.op1_amvib = src.trem_vibr_1;
tmp[index].d.op2_amvib = src.trem_vibr_2;
tmp[index].d.op1_atdec = src.att_dec_1;
tmp[index].d.op2_atdec = src.att_dec_2;
tmp[index].d.op1_susrel = src.sust_rel_1;
tmp[index].d.op2_susrel = src.sust_rel_2;
tmp[index].d.op1_wave = src.wave_1;
tmp[index].d.op2_wave = src.wave_2;
tmp[index].d.op1_ksltl = src.scale_1 | src.level_1;
tmp[index].d.op2_ksltl = src.scale_2 | src.level_2;
tmp[index].d.fbconn = src.feedback;
if(isDrum)
noteOffset[index] = 12;
else
noteOffset[index] = toSint16LE(src.basenote) + 12;
inst.fbConn |= (uint_fast16_t(src.feedback) << (index == 1 ? 8 : 0));
db.toOps(tmp[index].d, ops, index * 2);
}
uint8_t notenum = ins.note;
if(isDrum)
notenum = (flags & FL_FIXED_PITCH) ? ins.note : 60;
while(notenum && notenum < 20)
{
notenum += 12;
noteOffset[0] -= 12;
noteOffset[1] -= 12;
}
inst.noteOffset1 = noteOffset[0];
inst.noteOffset2 = noteOffset[1];
if((flags & FL_DOUBLE_VOICE) != 0)
inst.instFlags |= BanksDump::InstrumentEntry::WOPL_Ins_4op | BanksDump::InstrumentEntry::WOPL_Ins_Pseudo4op;
inst.percussionKeyNumber = notenum;
inst.secondVoiceDetune = static_cast<char>(static_cast<int>(ins.finetune) - 128);
db.addInstrument(bnk, patchId, inst, ops, fn);
/*const Doom_OPL2instrument& A = ins.patchdata[0];
const Doom_OPL2instrument& B = ins.patchdata[1];
printf(
"flags:%04X fine:%02X note:%02X\n"
"{t:%02X a:%02X s:%02X w:%02X s:%02X l:%02X f:%02X\n"
" t:%02X a:%02X s:%02X w:%02X s:%02X l:%02X ?:%02X base:%d}\n"
"{t:%02X a:%02X s:%02X w:%02X s:%02X l:%02X f:%02X\n"
" t:%02X a:%02X s:%02X w:%02X s:%02X l:%02X ?:%02X base:%d} ",
ins.flags, ins.finetune, ins.note,
A.trem_vibr_1, A.att_dec_1, A.sust_rel_1,
A.wave_1, A.scale_1, A.level_1, A.feedback,
A.trem_vibr_2, A.att_dec_2, A.sust_rel_2,
A.wave_2, A.scale_2, A.level_2, A.unused, A.basenote,
B.trem_vibr_1, B.att_dec_1, B.sust_rel_1,
B.wave_1, B.scale_1, B.level_1, B.feedback,
B.trem_vibr_2, B.att_dec_2, B.sust_rel_2,
B.wave_2, B.scale_2, B.level_2, B.unused, B.basenote);
printf(" %s VS %s\n", name.c_str(), MidiInsName[a]);
printf("------------------------------------------------------------\n");*/
}
db.addMidiBank(bankDb, false, bnkMelodique);
db.addMidiBank(bankDb, true, bnkPercussion);
return true;
}
#endif // LOAD_OP2_H
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