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renderSamples optimization

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only render sample types which are used
stability remains to be tested
This commit is contained in:
tildearrow 2022-09-25 17:18:04 -05:00
parent 89ece073f6
commit 656de800cf
6 changed files with 119 additions and 96 deletions
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10
src/engine/engine.cpp
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@ -1015,9 +1015,17 @@ void DivEngine::renderSamples() {
sPreview.pos=0;
sPreview.dir=false;
// step 0: make sample format mask
unsigned int formatMask=1U<<16; // 16-bit is always on
for (int i=0; i<song.systemLen; i++) {
const DivSysDef* s=getSystemDef(song.system[i]);
if (s==NULL) continue;
formatMask|=s->sampleFormatMask;
}
// step 1: render samples
for (int i=0; i<song.sampleLen; i++) {
song.sample[i]->render();
song.sample[i]->render(formatMask);
}
// step 2: render samples to dispatch