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VGM export: add speed drift compensation setting

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it appears this is the only way to get exports to play at the correct
speed in DeadFish's VGM player for Genesis
This commit is contained in:
tildearrow 2025-06-06 02:45:59 -05:00
parent 41dcfe8462
commit fe454ee2df
5 changed files with 20 additions and 8 deletions
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4
src/engine/engine.h
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@ -583,7 +583,7 @@ class DivEngine {
void processRow(int i, bool afterDelay);
void nextOrder();
void nextRow();
void performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write, int streamOff, double* loopTimer, double* loopFreq, int* loopSample, bool* sampleDir, bool isSecond, int* pendingFreq, int* playingSample, int* setPos, unsigned int* sampleOff8, unsigned int* sampleLen8, size_t bankOffset, bool directStream, bool* sampleStoppable, bool dpcm07, DivDispatch** writeNES);
void performVGMWrite(SafeWriter* w, DivSystem sys, DivRegWrite& write, int streamOff, double* loopTimer, double* loopFreq, int* loopSample, bool* sampleDir, bool isSecond, int* pendingFreq, int* playingSample, int* setPos, unsigned int* sampleOff8, unsigned int* sampleLen8, size_t bankOffset, bool directStream, bool* sampleStoppable, bool dpcm07, DivDispatch** writeNES, int rateCorrection);
// returns true if end of song.
bool nextTick(bool noAccum=false, bool inhibitLowLat=false);
bool perSystemEffect(int ch, unsigned char effect, unsigned char effectVal);
@ -726,7 +726,7 @@ class DivEngine {
// - x to add x+1 ticks of trailing
// - -1 to auto-determine trailing
// - -2 to add a whole loop of trailing
SafeWriter* saveVGM(bool* sysToExport=NULL, bool loop=true, int version=0x171, bool patternHints=false, bool directStream=false, int trailingTicks=-1, bool dpcm07=false);
SafeWriter* saveVGM(bool* sysToExport=NULL, bool loop=true, int version=0x171, bool patternHints=false, bool directStream=false, int trailingTicks=-1, bool dpcm07=false, int correctedRate=44100);
// dump to TIunA.
SafeWriter* saveTiuna(const bool* sysToExport, const char* baseLabel, int firstBankSize, int otherBankSize);
// dump command stream.