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yay ADPCM-A and QSound work again!

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This commit is contained in:
tildearrow 2022-02-24 16:16:02 -05:00
parent 1e98f0c4a1
commit f7bd06c4eb
6 changed files with 47 additions and 43 deletions
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18
src/engine/sample.cpp
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@ -73,6 +73,7 @@ bool DivSample::save(const char* path) {
return true;
}
// 16-bit memory is padded to 512, to make things easier for ADPCM-A/B.
bool DivSample::initInternal(unsigned char d, int count) {
switch (d) {
case 0: // 1-bit
@ -96,14 +97,14 @@ bool DivSample::initInternal(unsigned char d, int count) {
case 5: // ADPCM-A
if (dataA!=NULL) delete[] dataA;
lengthA=(count+1)/2;
dataA=new unsigned char[lengthA];
memset(dataA,0,lengthA);
dataA=new unsigned char[(lengthA+255)&(~0xff)];
memset(dataA,0,(lengthA+255)&(~0xff));
break;
case 6: // ADPCM-B
if (dataB!=NULL) delete[] dataB;
lengthB=(count+1)/2;
dataB=new unsigned char[lengthB];
memset(dataB,0,lengthB);
dataB=new unsigned char[(lengthB+255)&(~0xff)];
memset(dataB,0,(lengthB+255)&(~0xff));
break;
case 7: // X68000 ADPCM
if (dataX68!=NULL) delete[] dataX68;
@ -132,8 +133,8 @@ bool DivSample::initInternal(unsigned char d, int count) {
case 16: // 16-bit
if (data16!=NULL) delete[] data16;
length16=count*2;
data16=new short[count];
memset(data16,0,count*sizeof(short));
data16=new short[(count+511)&(~0x1ff)];
memset(data16,0,((count+511)&(~0x1ff))*sizeof(short));
break;
default:
return false;
@ -223,13 +224,14 @@ void DivSample::render() {
if (!initInternal(4,samples)) return;
bs_encode(data16,dataQSoundA,samples);
}
// TODO: pad to 256.
if (depth!=5) { // ADPCM-A
if (!initInternal(5,samples)) return;
yma_encode(data16,dataA,samples);
yma_encode(data16,dataA,(samples+511)&(~0x1ff));
}
if (depth!=6) { // ADPCM-B
if (!initInternal(6,samples)) return;
ymb_encode(data16,dataB,samples);
ymb_encode(data16,dataB,(samples+511)&(~0x1ff));
}
if (depth!=7) { // X68000 ADPCM
if (!initInternal(7,samples)) return;