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/*
Adplug - Replayer for many OPL2/OPL3 audio file formats.
Copyright (C) 1999 - 2007 Simon Peter <dn.tlp@gmx.net>, et al.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
fmc.cpp - FMC Loader by Riven the Mage <riven@ok.ru>
*/
#include <string.h>
#include "fmc.h"
/* -------- Public Methods -------------------------------- */
CPlayer *CfmcLoader::factory(Copl *newopl)
{
return new CfmcLoader(newopl);
}
bool CfmcLoader::load(const char *filename, const CFileProvider &fp)
{
binistream *f = fp.open(filename); if(!f) return false;
const unsigned char conv_fx[16] = {0,1,2,3,4,8,255,255,255,255,26,11,12,13,14,15};
int i,j,k,t=0;
// read header
f->readString(header.id, 4);
f->readString(header.title, 21);
header.numchan = f->readInt(1);
// 'FMC!' - signed ?
if (strncmp(header.id,"FMC!",4)) { fp.close(f); return false; }
// init CmodPlayer
realloc_instruments(32);
realloc_order(256);
realloc_patterns(64,64,header.numchan);
init_trackord();
// load order
for(i = 0; i < 256; i++) order[i] = f->readInt(1);
f->ignore(2);
// load instruments
for(i = 0; i < 32; i++) {
instruments[i].synthesis = f->readInt(1);
instruments[i].feedback = f->readInt(1);
instruments[i].mod_attack = f->readInt(1);
instruments[i].mod_decay = f->readInt(1);
instruments[i].mod_sustain = f->readInt(1);
instruments[i].mod_release = f->readInt(1);
instruments[i].mod_volume = f->readInt(1);
instruments[i].mod_ksl = f->readInt(1);
instruments[i].mod_freq_multi = f->readInt(1);
instruments[i].mod_waveform = f->readInt(1);
instruments[i].mod_sustain_sound = f->readInt(1);
instruments[i].mod_ksr = f->readInt(1);
instruments[i].mod_vibrato = f->readInt(1);
instruments[i].mod_tremolo = f->readInt(1);
instruments[i].car_attack = f->readInt(1);
instruments[i].car_decay = f->readInt(1);
instruments[i].car_sustain = f->readInt(1);
instruments[i].car_release = f->readInt(1);
instruments[i].car_volume = f->readInt(1);
instruments[i].car_ksl = f->readInt(1);
instruments[i].car_freq_multi = f->readInt(1);
instruments[i].car_waveform = f->readInt(1);
instruments[i].car_sustain_sound = f->readInt(1);
instruments[i].car_ksr = f->readInt(1);
instruments[i].car_vibrato = f->readInt(1);
instruments[i].car_tremolo = f->readInt(1);
instruments[i].pitch_shift = f->readInt(1);
f->readString(instruments[i].name, 21);
}
// load tracks
for (i=0;i<64;i++)
{
if(f->ateof()) break;
for (j=0;j<header.numchan;j++)
{
for (k=0;k<64;k++)
{
fmc_event event;
// read event
event.byte0 = f->readInt(1);
event.byte1 = f->readInt(1);
event.byte2 = f->readInt(1);
// convert event
tracks[t][k].note = event.byte0 & 0x7F;
tracks[t][k].inst = ((event.byte0 & 0x80) >> 3) + (event.byte1 >> 4) + 1;
tracks[t][k].command = conv_fx[event.byte1 & 0x0F];
tracks[t][k].param1 = event.byte2 >> 4;
tracks[t][k].param2 = event.byte2 & 0x0F;
// fix effects
if (tracks[t][k].command == 0x0E) // 0x0E (14): Retrig
tracks[t][k].param1 = 3;
if (tracks[t][k].command == 0x1A) { // 0x1A (26): Volume Slide
if (tracks[t][k].param1 > tracks[t][k].param2)
{
tracks[t][k].param1 -= tracks[t][k].param2;
tracks[t][k].param2 = 0;
}
else
{
tracks[t][k].param2 -= tracks[t][k].param1;
tracks[t][k].param1 = 0;
}
}
}
t++;
}
}
fp.close(f);
// convert instruments
for (i=0;i<31;i++)
buildinst(i);
// order length
for (i=0;i<256;i++)
{
if (order[i] >= 0xFE)
{
length = i;
break;
}
}
// data for Protracker
activechan = (0xffffffff >> (32 - header.numchan)) << (32 - header.numchan);
nop = t / header.numchan;
restartpos = 0;
// flags
flags = Faust;
rewind(0);
return true;
}
float CfmcLoader::getrefresh()
{
return 50.0f;
}
const char * CfmcLoader::gettype()
{
return "Faust Music Creator";
}
const char * CfmcLoader::gettitle()
{
return header.title;
}
const char * CfmcLoader::getinstrument(unsigned int n)
{
return instruments[n].name;
}
unsigned int CfmcLoader::getinstruments()
{
return 32;
}
/* -------- Private Methods ------------------------------- */
void CfmcLoader::buildinst(unsigned char i)
{
inst[i].data[0] = ((instruments[i].synthesis & 1) ^ 1);
inst[i].data[0] |= ((instruments[i].feedback & 7) << 1);
inst[i].data[3] = ((instruments[i].mod_attack & 15) << 4);
inst[i].data[3] |= (instruments[i].mod_decay & 15);
inst[i].data[5] = ((15 - (instruments[i].mod_sustain & 15)) << 4);
inst[i].data[5] |= (instruments[i].mod_release & 15);
inst[i].data[9] = (63 - (instruments[i].mod_volume & 63));
inst[i].data[9] |= ((instruments[i].mod_ksl & 3) << 6);
inst[i].data[1] = (instruments[i].mod_freq_multi & 15);
inst[i].data[7] = (instruments[i].mod_waveform & 3);
inst[i].data[1] |= ((instruments[i].mod_sustain_sound & 1) << 5);
inst[i].data[1] |= ((instruments[i].mod_ksr & 1) << 4);
inst[i].data[1] |= ((instruments[i].mod_vibrato & 1) << 6);
inst[i].data[1] |= ((instruments[i].mod_tremolo & 1) << 7);
inst[i].data[4] = ((instruments[i].car_attack & 15) << 4);
inst[i].data[4] |= (instruments[i].car_decay & 15);
inst[i].data[6] = ((15 - (instruments[i].car_sustain & 15)) << 4);
inst[i].data[6] |= (instruments[i].car_release & 15);
inst[i].data[10] = (63 - (instruments[i].car_volume & 63));
inst[i].data[10] |= ((instruments[i].car_ksl & 3) << 6);
inst[i].data[2] = (instruments[i].car_freq_multi & 15);
inst[i].data[8] = (instruments[i].car_waveform & 3);
inst[i].data[2] |= ((instruments[i].car_sustain_sound & 1) << 5);
inst[i].data[2] |= ((instruments[i].car_ksr & 1) << 4);
inst[i].data[2] |= ((instruments[i].car_vibrato & 1) << 6);
inst[i].data[2] |= ((instruments[i].car_tremolo & 1) << 7);
inst[i].slide = instruments[i].pitch_shift;
}
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