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XM import: fix infinite loop

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tildearrow 2024-07-14 01:47:17 -05:00
parent 691336a9ce
commit 0efe8a1320
1 changed files with 15 additions and 9 deletions
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24
src/engine/fileOps/xm.cpp
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@ -525,21 +525,27 @@ bool DivEngine::loadXM(unsigned char* file, size_t len) {
if (volType&1) {
// add fade-out
int cur=64;
if (ins->std.volMacro.len>0) {
cur=ins->std.volMacro.val[ins->std.volMacro.len-1];
}
for (int fadeOut=32767; fadeOut>0 && ins->std.volMacro.len<254; fadeOut-=volFade) {
ins->std.volMacro.val[ins->std.volMacro.len++]=(cur*fadeOut)>>15;
}
if (ins->std.volMacro.len<255) {
ins->std.volMacro.val[ins->std.volMacro.len++]=0;
if (volFade!=0) {
int cur=64;
if (ins->std.volMacro.len>0) {
cur=ins->std.volMacro.val[ins->std.volMacro.len-1];
}
for (int fadeOut=32767; fadeOut>0 && ins->std.volMacro.len<254; fadeOut-=volFade) {
ins->std.volMacro.val[ins->std.volMacro.len++]=(cur*fadeOut)>>15;
}
if (ins->std.volMacro.len<255) {
ins->std.volMacro.val[ins->std.volMacro.len++]=0;
}
if (ins->std.volMacro.rel<ins->std.volMacro.len && ins->std.volMacro.rel<ins->std.volMacro.loop) {
ins->std.volMacro.loop=255;
}
}
} else {
// add a one-tick macro to make note release happy
ins->std.volMacro.val[0]=64;
ins->std.volMacro.val[1]=0;
ins->std.volMacro.rel=0;
ins->std.volMacro.loop=255;
ins->std.volMacro.len=2;
}