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move more wavetable loading logic

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now it's safer
This commit is contained in:
tildearrow 2022-01-21 18:17:05 -05:00
parent 186e491c59
commit 724b1cd1a8
6 changed files with 41 additions and 19 deletions
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16
src/engine/wavetable.cpp
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@ -1,3 +1,4 @@
#include "dataErrors.h"
#include "engine.h"
#include "wavetable.h"
#include "../ta-log.h"
@ -16,15 +17,24 @@ void DivWavetable::putWaveData(SafeWriter* w) {
}
}
void DivWavetable::readWaveData(SafeReader& reader, short version) {
reader.readI();
reader.readI();
DivDataErrors DivWavetable::readWaveData(SafeReader& reader, short version) {
char magic[4];
reader.read(magic,4);
if (memcmp(magic,"WAVE",4)!=0) {
return DIV_DATA_INVALID_HEADER;
}
reader.readI(); // reserved
reader.readString(); // ignored for now
len=reader.readI();
min=reader.readI();
max=reader.readI();
if (len>256 || min!=0 || max>255) return DIV_DATA_INVALID_DATA;
reader.read(data,4*len);
return DIV_DATA_SUCCESS;
}
bool DivWavetable::save(const char* path) {