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Merge branch 'x1_010' of https://github.com/cam900/furnace into cam900-x1_010

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This commit is contained in:
tildearrow 2022-03-10 18:24:52 -05:00
commit c6fda7a156
29 changed files with 1754 additions and 38 deletions
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35
src/engine/engine.cpp
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@ -19,7 +19,6 @@
#include "dataErrors.h"
#include "song.h"
#include <cstddef>
#define _USE_MATH_DEFINES
#include "engine.h"
#include "instrument.h"
@ -532,6 +531,36 @@ void DivEngine::renderSamples() {
memPos+=length+16;
}
qsoundMemLen=memPos+256;
// step 4: allocate x1-010 pcm samples
if (x1_010Mem==NULL) x1_010Mem=new unsigned char[1048576];
memset(x1_010Mem,0,1048576);
memPos=0;
for (int i=0; i<song.sampleLen; i++) {
DivSample* s=song.sample[i];
int paddedLen=(s->length8+4095)&(~0xfff);
// fit sample bank size to 128KB for Seta 2 external bankswitching logic (not emulated yet!)
if (paddedLen>131072) {
paddedLen=131072;
}
if ((memPos&0xfe0000)!=((memPos+paddedLen)&0xfe0000)) {
memPos=(memPos+0x1ffff)&0xfe0000;
}
if (memPos>=1048576) {
logW("out of X1-010 memory for sample %d!\n",i);
break;
}
if (memPos+paddedLen>=1048576) {
memcpy(x1_010Mem+memPos,s->data8,1048576-memPos);
logW("out of X1-010 memory for sample %d!\n",i);
} else {
memcpy(x1_010Mem+memPos,s->data8,paddedLen);
}
s->offX1_010=memPos;
memPos+=paddedLen;
}
x1_010MemLen=memPos+256;
}
void DivEngine::createNew(const int* description) {
@ -950,12 +979,14 @@ int DivEngine::getEffectiveSampleRate(int rate) {
return 1789773/(1789773/rate);
case DIV_SYSTEM_SEGAPCM: case DIV_SYSTEM_SEGAPCM_COMPAT:
return (31250*MIN(255,(rate*255/31250)))/255;
case DIV_SYSTEM_QSOUND:
case DIV_SYSTEM_QSOUND:
return (24038*MIN(65535,(rate*4096/24038)))/4096;
case DIV_SYSTEM_YM2610: case DIV_SYSTEM_YM2610_EXT: case DIV_SYSTEM_YM2610_FULL: case DIV_SYSTEM_YM2610_FULL_EXT: case DIV_SYSTEM_YM2610B: case DIV_SYSTEM_YM2610B_EXT:
return 18518;
case DIV_SYSTEM_VERA:
return (48828*MIN(128,(rate*128/48828)))/128;
case DIV_SYSTEM_X1_010:
return (31250*MIN(255,(rate*16/31250)))/16; // TODO: support variable clock case
default:
break;
}