mirror of
https://github.com/tildearrow/furnace.git
synced 2024-11-27 15:03:01 +00:00
implement Furnace format loading
This commit is contained in:
tildearrow
parent
0b4ad13858
commit
925a29249b
1 changed files with 316 additions and 4 deletions
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@ -403,7 +403,7 @@ bool DivEngine::loadDMF(unsigned char* file, size_t len) {
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}
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if (!reader.seek(16,SEEK_SET)) {
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logE("premature end of file!");
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logE("premature end of file!\n");
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lastError="incomplete file";
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delete[] file;
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return false;
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@ -902,10 +902,322 @@ bool DivEngine::loadDMF(unsigned char* file, size_t len) {
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}
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bool DivEngine::loadFur(unsigned char* file, size_t len) {
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logE("not implemented!\n");
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lastError="not implemented";
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int insPtr[256];
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int wavePtr[256];
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int samplePtr[256];
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std::vector<int> patPtr;
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char magic[5];
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memset(magic,0,5);
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SafeReader reader=SafeReader(file,len);
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try {
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DivSong ds;
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if (!reader.seek(16,SEEK_SET)) {
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logE("premature end of file!\n");
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lastError="incomplete file";
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delete[] file;
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return false;
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}
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ds.version=reader.readS();
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logI("module version %d (0x%.2x)\n",ds.version,ds.version);
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if (ds.version>DIV_ENGINE_VERSION) {
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logW("this module was created with a more recent version of Furnace!\n");
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}
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reader.readS(); // reserved
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int infoSeek=reader.readI();
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reader.seek(infoSeek,SEEK_SET);
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// read header
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reader.read(magic,4);
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if (strcmp(magic,"INFO")!=0) {
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logE("invalid info header!\n");
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lastError="invalid info header!";
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delete[] file;
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return false;
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}
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reader.readI();
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ds.timeBase=reader.readC();
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ds.speed1=reader.readC();
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ds.speed2=reader.readC();
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ds.arpLen=reader.readC();
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ds.hz=reader.readF();
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ds.pal=(ds.hz>=53);
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ds.patLen=reader.readS();
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ds.ordersLen=reader.readS();
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ds.hilightA=reader.readC();
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ds.hilightB=reader.readC();
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ds.insLen=reader.readS();
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ds.waveLen=reader.readS();
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ds.sampleLen=reader.readS();
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int numberOfPats=reader.readI();
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for (int i=0; i<32; i++) {
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ds.system[i]=systemFromFile(reader.readC());
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if (ds.system[i]!=DIV_SYSTEM_NULL) ds.systemLen=i+1;
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}
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int tchans=0;
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for (int i=0; i<ds.systemLen; i++) {
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tchans+=getChannelCount(ds.system[i]);
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}
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if (tchans>DIV_MAX_CHANS) tchans=DIV_MAX_CHANS;
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// system volume, skipped for now
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for (int i=0; i<32; i++) reader.readC();
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// system panning, skipped for now
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for (int i=0; i<32; i++) reader.readC();
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// system props, skipped for now
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for (int i=0; i<32; i++) reader.readI();
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ds.name=reader.readString();
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ds.author=reader.readString();
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logI("%s by %s\n",ds.name.c_str(),ds.author.c_str());
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// reserved
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for (int i=0; i<24; i++) reader.readC();
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// pointers
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reader.read(insPtr,ds.insLen*4);
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reader.read(wavePtr,ds.waveLen*4);
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reader.read(samplePtr,ds.sampleLen*4);
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for (int i=0; i<numberOfPats; i++) patPtr.push_back(reader.readI());
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for (int i=0; i<tchans; i++) {
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for (int j=0; j<ds.ordersLen; j++) {
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ds.orders.ord[i][j]=reader.readC();
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}
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}
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for (int i=0; i<tchans; i++) {
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ds.pat[i].effectRows=reader.readC();
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}
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// read instruments
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for (int i=0; i<ds.insLen; i++) {
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reader.seek(insPtr[i],SEEK_SET);
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reader.read(magic,4);
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if (strcmp(magic,"INST")!=0) {
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logE("%d: invalid instrument header!\n",i);
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lastError="invalid instrument header!";
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delete[] file;
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return false;
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}
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reader.readI();
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DivInstrument* ins=new DivInstrument;
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reader.readS(); // format version. ignored.
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ins->type=(DivInstrumentType)reader.readC();
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ins->mode=(ins->type==DIV_INS_FM);
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reader.readC();
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ins->name=reader.readString();
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// FM
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ins->fm.alg=reader.readC();
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ins->fm.fb=reader.readC();
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ins->fm.fms=reader.readC();
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ins->fm.ams=reader.readC();
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ins->fm.ops=reader.readC();
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reader.readC();
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reader.readC();
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reader.readC();
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for (int j=0; j<4; j++) {
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DivInstrumentFM::Operator& op=ins->fm.op[j];
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op.am=reader.readC();
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op.ar=reader.readC();
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op.dr=reader.readC();
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op.mult=reader.readC();
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op.rr=reader.readC();
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op.sl=reader.readC();
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op.tl=reader.readC();
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op.dt2=reader.readC();
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op.rs=reader.readC();
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op.dt=reader.readC();
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op.d2r=reader.readC();
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op.ssgEnv=reader.readC();
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op.dam=reader.readC();
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op.dvb=reader.readC();
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op.egt=reader.readC();
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op.ksl=reader.readC();
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op.sus=reader.readC();
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op.vib=reader.readC();
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op.ws=reader.readC();
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op.ksr=reader.readC();
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// reserved
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for (int k=0; k<12; k++) reader.readC();
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}
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// GB
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ins->gb.envVol=reader.readC();
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ins->gb.envDir=reader.readC();
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ins->gb.envLen=reader.readC();
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ins->gb.soundLen=reader.readC();
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// C64
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ins->c64.triOn=reader.readC();
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ins->c64.sawOn=reader.readC();
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ins->c64.pulseOn=reader.readC();
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ins->c64.noiseOn=reader.readC();
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ins->c64.a=reader.readC();
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ins->c64.d=reader.readC();
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ins->c64.s=reader.readC();
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ins->c64.r=reader.readC();
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ins->c64.duty=reader.readS();
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ins->c64.ringMod=reader.readC();
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ins->c64.oscSync=reader.readC();
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ins->c64.toFilter=reader.readC();
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ins->c64.initFilter=reader.readC();
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ins->c64.volIsCutoff=reader.readC();
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ins->c64.res=reader.readC();
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ins->c64.lp=reader.readC();
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ins->c64.bp=reader.readC();
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ins->c64.hp=reader.readC();
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ins->c64.ch3off=reader.readC();
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ins->c64.cut=reader.readS();
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ins->c64.dutyIsAbs=reader.readC();
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ins->c64.filterIsAbs=reader.readC();
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// Amiga
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ins->amiga.initSample=reader.readS();
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// reserved
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for (int k=0; k<14; k++) reader.readC();
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// standard
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ins->std.volMacroLen=reader.readI();
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ins->std.arpMacroLen=reader.readI();
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ins->std.dutyMacroLen=reader.readI();
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ins->std.waveMacroLen=reader.readI();
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ins->std.volMacroLoop=reader.readI();
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ins->std.arpMacroLoop=reader.readI();
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ins->std.dutyMacroLoop=reader.readI();
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ins->std.waveMacroLoop=reader.readI();
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ins->std.arpMacroMode=reader.readC();
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reader.readC(); // reserved
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reader.readC();
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reader.readC();
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reader.read(ins->std.volMacro,4*ins->std.volMacroLen);
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reader.read(ins->std.arpMacro,4*ins->std.arpMacroLen);
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reader.read(ins->std.dutyMacro,4*ins->std.dutyMacroLen);
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reader.read(ins->std.waveMacro,4*ins->std.waveMacroLen);
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ds.ins.push_back(ins);
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}
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// read wavetables
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for (int i=0; i<ds.waveLen; i++) {
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reader.seek(wavePtr[i],SEEK_SET);
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reader.read(magic,4);
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if (strcmp(magic,"WAVE")!=0) {
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logE("%d: invalid wavetable header!\n",i);
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lastError="invalid wavetable header!";
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delete[] file;
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return false;
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}
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reader.readI();
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DivWavetable* wave=new DivWavetable;
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reader.readString(); // ignored for now
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wave->len=reader.readI();
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wave->min=reader.readI();
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wave->max=reader.readI();
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reader.read(wave->data,4*wave->len);
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ds.wave.push_back(wave);
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}
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// read samples
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for (int i=0; i<ds.sampleLen; i++) {
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reader.seek(samplePtr[i],SEEK_SET);
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reader.read(magic,4);
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if (strcmp(magic,"SMPL")!=0) {
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logE("%d: invalid sample header!\n",i);
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lastError="invalid sample header!";
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delete[] file;
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return false;
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}
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reader.readI();
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DivSample* sample=new DivSample;
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sample->name=reader.readString();
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sample->length=reader.readI();
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sample->rate=reader.readI();
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sample->vol=reader.readS();
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sample->pitch=reader.readS();
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sample->depth=reader.readC();
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// reserved
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for (int j=0; j<7; j++) reader.readC();
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sample->data=new short[sample->length];
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reader.read(sample->data,2*sample->length);
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ds.sample.push_back(sample);
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}
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// read patterns
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for (int i: patPtr) {
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reader.seek(i,SEEK_SET);
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reader.read(magic,4);
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if (strcmp(magic,"PATR")!=0) {
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logE("%x: invalid pattern header!\n",i);
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lastError="invalid pattern header!";
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delete[] file;
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return false;
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}
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reader.readI();
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int chan=reader.readS();
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int index=reader.readS();
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reader.readI();
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DivPattern* pat=ds.pat[chan].getPattern(index,true);
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for (int j=0; j<ds.patLen; j++) {
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pat->data[j][0]=reader.readS();
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pat->data[j][1]=reader.readS();
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pat->data[j][2]=reader.readS();
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pat->data[j][3]=reader.readS();
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for (int k=0; k<ds.pat[chan].effectRows; k++) {
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pat->data[j][4+(k<<1)]=reader.readS();
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pat->data[j][5+(k<<1)]=reader.readS();
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}
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}
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}
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if (reader.tell()<reader.size()) {
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if ((reader.tell()+1)!=reader.size()) {
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logW("premature end of song (we are at %x, but size is %x)\n",reader.tell(),reader.size());
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}
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}
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if (active) quitDispatch();
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isBusy.lock();
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song.unload();
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song=ds;
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recalcChans();
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renderSamples();
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isBusy.unlock();
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if (active) {
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initDispatch();
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syncReset();
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}
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} catch (EndOfFileException e) {
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logE("premature end of file!\n");
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lastError="incomplete file";
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delete[] file;
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return false;
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}
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delete[] file;
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return false;
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return true;
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}
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bool DivEngine::load(unsigned char* f, size_t slen) {
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