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giga-refactor, part 12

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loading works
This commit is contained in:
tildearrow 2025-11-16 07:13:30 -05:00
parent 94044ef210
commit 334d8708e2
3 changed files with 250 additions and 85 deletions
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156
src/engine/song.cpp
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@ -451,6 +451,142 @@ void DivSubSong::calcTimestamps(int chans, std::vector<DivGroovePattern>& groove
logV("song length: %s; %" PRIu64 " ticks",ts.totalTime.toString(6,TA_TIME_FORMAT_AUTO),ts.totalTicks);
}
bool DivSubSong::readData(SafeReader& reader, int version, int chans) {
unsigned char magic[4];
reader.read(magic,4);
if (version>=240) {
if (memcmp(magic,"SNG2",4)!=0) {
logE("invalid subsong header!");
return false;
}
reader.readI();
hz=reader.readF();
arpLen=reader.readC();
timeBase=reader.readC();
patLen=reader.readS();
ordersLen=reader.readS();
hilightA=reader.readC();
hilightB=reader.readC();
virtualTempoN=reader.readS();
virtualTempoD=reader.readS();
speeds.len=reader.readC();
for (int i=0; i<16; i++) {
speeds.val[i]=reader.readS();
}
name=reader.readString();
notes=reader.readString();
logD("reading orders (%d)...",ordersLen);
for (int j=0; j<chans; j++) {
for (int k=0; k<ordersLen; k++) {
orders.ord[j][k]=reader.readC();
}
}
for (int i=0; i<chans; i++) {
pat[i].effectCols=reader.readC();
}
for (int i=0; i<chans; i++) {
unsigned char tempchar=reader.readC();
chanShow[i]=tempchar&1;
chanShowChanOsc[i]=tempchar&2;
}
for (int i=0; i<chans; i++) {
chanCollapse[i]=reader.readC();
}
for (int i=0; i<chans; i++) {
chanName[i]=reader.readString();
}
for (int i=0; i<chans; i++) {
chanShortName[i]=reader.readString();
}
} else {
if (memcmp(magic,"SONG",4)!=0) {
logE("invalid subsong header!");
return false;
}
reader.readI();
timeBase=reader.readC();
speeds.len=2;
speeds.val[0]=(unsigned char)reader.readC();
speeds.val[1]=(unsigned char)reader.readC();
arpLen=reader.readC();
hz=reader.readF();
patLen=reader.readS();
ordersLen=reader.readS();
hilightA=reader.readC();
hilightB=reader.readC();
if (version>=96) {
virtualTempoN=reader.readS();
virtualTempoD=reader.readS();
} else {
reader.readI();
}
name=reader.readString();
notes=reader.readString();
logD("reading orders (%d)...",ordersLen);
for (int j=0; j<chans; j++) {
for (int k=0; k<ordersLen; k++) {
orders.ord[j][k]=reader.readC();
}
}
for (int i=0; i<chans; i++) {
pat[i].effectCols=reader.readC();
}
for (int i=0; i<chans; i++) {
if (version<189) {
chanShow[i]=reader.readC();
chanShowChanOsc[i]=chanShow[i];
} else {
unsigned char tempchar=reader.readC();
chanShow[i]=tempchar&1;
chanShowChanOsc[i]=tempchar&2;
}
}
for (int i=0; i<chans; i++) {
chanCollapse[i]=reader.readC();
}
for (int i=0; i<chans; i++) {
chanName[i]=reader.readString();
}
for (int i=0; i<chans; i++) {
chanShortName[i]=reader.readString();
}
if (version>=139) {
speeds.len=reader.readC();
for (int i=0; i<16; i++) {
speeds.val[i]=(unsigned char)reader.readC();
}
}
}
return true;
}
void DivSubSong::putData(SafeWriter* w, int chans) {
size_t blockStartSeek, blockEndSeek;
w->write("SNG2",4);
@ -468,7 +604,7 @@ void DivSubSong::putData(SafeWriter* w, int chans) {
w->writeS(virtualTempoD);
// speeds
w->writeS(speeds.len);
w->writeC(speeds.len);
for (int i=0; i<16; i++) {
w->writeS(speeds.val[i]);
}
@ -873,13 +1009,29 @@ void DivSong::unload() {
subsong.clear();
}
bool DivGroovePattern::readData(SafeReader& reader) {
unsigned char magic[4];
reader.read(magic,4);
if (memcmp(magic,"GROV",4)!=0) {
logE("invalid groove header!");
return false;
}
reader.readI();
return true;
}
void DivGroovePattern::putData(SafeWriter* w) {
size_t blockStartSeek, blockEndSeek;
w->write("GROV",4);
blockStartSeek=w->tell();
w->writeI(0);
w->writeS(len);
w->writeC(len);
for (int i=0; i<16; i++) {
w->writeS(val[i]);
}