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allow loading .brr samples directly

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tildearrow 2022-09-25 01:20:08 -05:00
parent d7c885774e
commit cbdf23efa7
3 changed files with 45 additions and 8 deletions
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48
src/engine/engine.cpp
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@ -2649,7 +2649,7 @@ DivSample* DivEngine::sampleFromFile(const char* path) {
}
extS+=i;
}
if (extS==".dmc") { // read as .dmc
if (extS==".dmc" || extS==".brr") { // read as .dmc or .brr
size_t len=0;
DivSample* sample=new DivSample;
sample->name=stripPath;
@ -2696,12 +2696,48 @@ DivSample* DivEngine::sampleFromFile(const char* path) {
return NULL;
}
sample->rate=33144;
sample->centerRate=33144;
sample->depth=DIV_SAMPLE_DEPTH_1BIT_DPCM;
sample->init(len*8);
if (extS==".dmc") {
sample->rate=33144;
sample->centerRate=33144;
sample->depth=DIV_SAMPLE_DEPTH_1BIT_DPCM;
sample->init(len*8);
} else if (extS==".brr") {
sample->rate=32000;
sample->centerRate=32000;
sample->depth=DIV_SAMPLE_DEPTH_BRR;
sample->init(16*(len/9));
} else {
fclose(f);
BUSY_END;
lastError="wait... is that right? no I don't think so...";
delete sample;
return NULL;
}
if (fread(sample->dataDPCM,1,len,f)==0) {
unsigned char* dataBuf=sample->dataDPCM;
if (extS==".brr") {
dataBuf=sample->dataBRR;
if ((len%9)==2) {
// ignore loop position
fseek(f,2,SEEK_SET);
len-=2;
if (len==0) {
fclose(f);
BUSY_END;
lastError="BRR sample is empty!";
delete sample;
return NULL;
}
} else if ((len%9)!=0) {
fclose(f);
BUSY_END;
lastError="possibly corrupt BRR sample!";
delete sample;
return NULL;
}
}
if (fread(dataBuf,1,len,f)==0) {
fclose(f);
BUSY_END;
lastError=fmt::sprintf("could not read file! (%s)",strerror(errno));