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Implement getSampleMemOffset for further optimize VGM logging (specifically OPL4 PCM)

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This commit is contained in:
cam900 2025-06-04 21:16:27 +09:00
parent 9d1c10fcea
commit a5148a3441
9 changed files with 60 additions and 25 deletions
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20
src/engine/platform/es5506.cpp
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@ -1433,6 +1433,10 @@ size_t DivPlatformES5506::getSampleMemUsage(int index) {
return index == 0 ? sampleMemLen : 0;
}
size_t DivPlatformES5506::getSampleMemOffset(int index) {
return index == 0 ? 128 : 0;
}
bool DivPlatformES5506::isSampleLoaded(int index, int sample) {
if (index!=0) return false;
if (sample<0 || sample>255) return false;
@ -1452,7 +1456,7 @@ void DivPlatformES5506::renderSamples(int sysID) {
memCompo=DivMemoryComposition();
memCompo.name="Sample Memory";
size_t memPos=128; // add silent at begin and end of each bank for reverse playback and add 1 for loop
size_t memPos=getSampleMemOffset(); // add silent at begin and end of each bank for reverse playback and add 1 for loop
for (int i=0; i<parent->song.sampleLen; i++) {
DivSample* s=parent->song.sample[i];
if (!s->renderOn[0][sysID]) {
@ -1462,18 +1466,18 @@ void DivPlatformES5506::renderSamples(int sysID) {
unsigned int length=s->length16;
// fit sample size to single bank size
if (length>(4194304-128)) {
length=4194304-128;
if (length>(4194304-getSampleMemOffset())) {
length=4194304-getSampleMemOffset();
}
if ((memPos&0xc00000)!=((memPos+length+128)&0xc00000)) {
memPos=((memPos+0x3fffff)&0xffc00000)+128;
if ((memPos&0xc00000)!=((memPos+length+getSampleMemOffset())&0xc00000)) {
memPos=((memPos+0x3fffff)&0xffc00000)+getSampleMemOffset();
}
if (memPos>=(getSampleMemCapacity()-128)) {
if (memPos>=(getSampleMemCapacity()-getSampleMemOffset())) {
logW("out of ES5506 memory for sample %d!",i);
break;
}
if (memPos+length>=(getSampleMemCapacity()-128)) {
memcpy(sampleMem+(memPos/sizeof(short)),s->data16,(getSampleMemCapacity()-128)-memPos);
if (memPos+length>=(getSampleMemCapacity()-getSampleMemOffset())) {
memcpy(sampleMem+(memPos/sizeof(short)),s->data16,(getSampleMemCapacity()-getSampleMemOffset())-memPos);
logW("out of ES5506 memory for sample %d!",i);
} else {
memcpy(sampleMem+(memPos/sizeof(short)),s->data16,length);