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https://github.com/tildearrow/furnace.git
synced 2024-11-15 17:25:06 +00:00
jlhafasjkhdgkdhjasfd
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tildearrow
parent
3ff8f3d860
commit
8d17500315
1 changed files with 157 additions and 7 deletions
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@ -2268,9 +2268,12 @@ bool DivEngine::loadFC(unsigned char* file, size_t len) {
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SafeReader reader=SafeReader(file,len);
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warnings="";
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bool isFC14=false;
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unsigned int patPtr, freqMacroPtr, volMacroPtr, samplePtr;
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unsigned int patPtr, freqMacroPtr, volMacroPtr, samplePtr, wavePtr;
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unsigned int seqLen, patLen, freqMacroLen, volMacroLen, sampleLen;
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unsigned char waveLen[40];
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unsigned char waveLoopLen[40];
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struct FCSequence {
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unsigned char pat[4];
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signed char transpose[4];
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@ -2283,6 +2286,11 @@ bool DivEngine::loadFC(unsigned char* file, size_t len) {
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unsigned char val[32];
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};
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std::vector<FCPattern> pat;
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struct FCMacro {
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unsigned char val[64];
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};
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std::vector<FCMacro> freqMacros;
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std::vector<FCMacro> volMacros;
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struct FCSample {
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unsigned short loopLen, len, loopStart;
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@ -2335,14 +2343,23 @@ bool DivEngine::loadFC(unsigned char* file, size_t len) {
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}
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freqMacroPtr=reader.readI_BE();
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freqMacroLen=reader.readI_BE();
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if (freqMacroLen%64) {
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logW("freq sequence length is not multiple of 64 (%d)",freqMacroLen);
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//throw EndOfFileException(&reader,reader.tell());
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}
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volMacroPtr=reader.readI_BE();
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volMacroLen=reader.readI_BE();
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if (volMacroLen%64) {
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logW("vol sequence length is not multiple of 64 (%d)",volMacroLen);
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//throw EndOfFileException(&reader,reader.tell());
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}
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samplePtr=reader.readI_BE();
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if (isFC14) {
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reader.readI_BE(); // wave len
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wavePtr=reader.readI_BE(); // wave len
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sampleLen=0;
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} else {
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sampleLen=reader.readI_BE();
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wavePtr=0;
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}
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logD("patPtr: %d",patPtr);
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@ -2352,7 +2369,11 @@ bool DivEngine::loadFC(unsigned char* file, size_t len) {
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logD("volMacroPtr: %d",volMacroPtr);
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logD("volMacroLen: %d",volMacroLen);
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logD("samplePtr: %d",samplePtr);
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if (isFC14) {
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logD("wavePtr: %d",wavePtr);
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} else {
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logD("sampleLen: %d",sampleLen);
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}
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// sample info
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logD("samples:");
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@ -2365,9 +2386,14 @@ bool DivEngine::loadFC(unsigned char* file, size_t len) {
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}
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// wavetable lengths
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if (isFC14) for (int i=0; i<20; i++) {
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reader.readS_BE();
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reader.readS_BE();
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if (isFC14) {
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logD("wavetables:");
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for (int i=0; i<40; i++) {
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waveLen[i]=reader.readC();
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waveLoopLen[i]=reader.readC();
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logD("- %d: %.4x (%.4x)",i,waveLen[i],waveLoopLen[i]);
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}
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}
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// sequences
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@ -2413,7 +2439,96 @@ bool DivEngine::loadFC(unsigned char* file, size_t len) {
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pat.push_back(p);
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}
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// TODO: read the rest
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// freq sequences
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if (!reader.seek(freqMacroPtr,SEEK_SET)) {
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logE("premature end of file!");
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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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freqMacroLen/=64;
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logD("reading freq sequences... (%d)",freqMacroLen);
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for (unsigned int i=0; i<freqMacroLen; i++) {
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FCMacro m;
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reader.read(m.val,64);
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freqMacros.push_back(m);
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}
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// vol sequences
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if (!reader.seek(volMacroPtr,SEEK_SET)) {
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logE("premature end of file!");
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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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volMacroLen/=64;
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logD("reading volume sequences... (%d)",volMacroLen);
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for (unsigned int i=0; i<volMacroLen; i++) {
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FCMacro m;
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reader.read(m.val,64);
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volMacros.push_back(m);
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}
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// samples
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if (!reader.seek(samplePtr,SEEK_SET)) {
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logE("premature end of file!");
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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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logD("reading samples...");
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for (int i=0; i<10; i++) {
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DivSample* s=new DivSample;
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s->depth=DIV_SAMPLE_DEPTH_8BIT;
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if (sample[i].len>0) {
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s->init(sample[i].len);
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}
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s->loopStart=sample[i].loopStart*2;
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s->loopEnd=(sample[i].loopStart+sample[i].loopLen)*2;
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reader.read(s->data8,sample[i].len);
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ds.sample.push_back(s);
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}
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ds.sampleLen=(int)ds.sample.size();
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// wavetables
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if (isFC14) {
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if (!reader.seek(wavePtr,SEEK_SET)) {
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logE("premature end of file!");
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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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logD("reading wavetables...");
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for (int i=0; i<40; i++) {
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DivWavetable* w=new DivWavetable;
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w->min=0;
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w->max=255;
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w->len=MIN(256,waveLoopLen[i]*2);
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for (int i=0; i<256; i++) {
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w->data[i]=128;
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}
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if (waveLen[i]>0) {
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signed char* waveArray=new signed char[waveLen[i]*2];
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reader.read(waveArray,waveLen[i]*2);
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int howMany=MIN(waveLen[i]*2,waveLoopLen[i]*2);
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if (howMany>256) howMany=256;
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for (int i=0; i<howMany; i++) {
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w->data[i]=waveArray[i];
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}
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delete[] waveArray;
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} else {
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w->len=32;
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for (int i=0; i<32; i++) {
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w->data[i]=(i*255)/31;
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}
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}
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ds.wave.push_back(w);
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}
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}
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ds.waveLen=(int)ds.wave.size();
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// convert
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ds.subsong[0]->ordersLen=seqLen;
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@ -2492,6 +2607,41 @@ bool DivEngine::loadFC(unsigned char* file, size_t len) {
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}
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}
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// convert instruments
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for (unsigned int i=0; i<volMacroLen; i++) {
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DivInstrument* ins=new DivInstrument;
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FCMacro& m=volMacros[i];
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ins->type=DIV_INS_AMIGA;
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ins->name=fmt::sprintf("Instrument %d",i);
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unsigned char seqSpeed=m.val[0];
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unsigned char freqMacro=m.val[1];
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unsigned char vibSpeed=m.val[2];
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unsigned char vibDepth=m.val[3];
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unsigned char vibDelay=m.val[4];
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ins->std.volMacro.len=0;
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for (int j=5; j<64; j++) {
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unsigned char pos=ins->std.volMacro.len;
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if (++ins->std.volMacro.len>=128) break;
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if (m.val[j]==0xe1) {
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} else if (m.val[j]==0xe0) {
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} else if (m.val[j]==0xe8) {
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} else if (m.val[j]==0xe9) {
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} else {
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ins->std.volMacro.val[ins->std.volMacro.len]=m.val[j];
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}
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}
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ds.ins.push_back(ins);
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}
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ds.insLen=(int)ds.ins.size();
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if (active) quitDispatch();
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BUSY_BEGIN_SOFT;
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saveLock.lock();
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