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NES: fix DPCM samples having wrong size

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tildearrow 2023-08-03 00:32:50 -05:00
parent 11836ad079
commit 7d8c1b6efc
1 changed files with 8 additions and 3 deletions
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11
src/engine/sample.cpp
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@ -480,6 +480,7 @@ bool DivSample::saveRaw(const char* path) {
// 16-bit memory is padded to 512, to make things easier for ADPCM-A/B.
bool DivSample::initInternal(DivSampleDepth d, int count) {
logV("initInternal(%d,%d)",(int)d,count);
switch (d) {
case DIV_SAMPLE_DEPTH_1BIT: // 1-bit
if (data1!=NULL) delete[] data1;
@ -489,7 +490,7 @@ bool DivSample::initInternal(DivSampleDepth d, int count) {
break;
case DIV_SAMPLE_DEPTH_1BIT_DPCM: // DPCM
if (dataDPCM!=NULL) delete[] dataDPCM;
lengthDPCM=1+((((count+7)/8)+15)&(~15));
lengthDPCM=1+((((count-1)/8)+15)&(~15));
dataDPCM=new unsigned char[lengthDPCM];
memset(dataDPCM,0xaa,lengthDPCM);
break;
@ -748,7 +749,11 @@ void DivSample::convert(DivSampleDepth newDepth) {
setSampleCount((samples+7)&(~7));
break;
case DIV_SAMPLE_DEPTH_1BIT_DPCM:
setSampleCount((1+((((samples+7)/8)+15)&(~15)))<<3);
if (samples) {
setSampleCount((1+((((samples-1)/8)+15)&(~15)))<<3);
} else {
setSampleCount(8);
}
break;
case DIV_SAMPLE_DEPTH_YMZ_ADPCM:
setSampleCount(((lengthZ+3)&(~0x03))*2);
@ -1168,7 +1173,7 @@ void DivSample::render(unsigned int formatMask) {
if (!initInternal(DIV_SAMPLE_DEPTH_1BIT_DPCM,samples)) return;
int accum=63;
int next=63;
for (unsigned int i=0; i<samples; i++) {
for (unsigned int i=0; (i<samples && (i>>3)<lengthDPCM); i++) {
next=((unsigned short)(data16[i]^0x8000))>>9;
if (next>accum) {
dataDPCM[i>>3]|=1<<(i&7);