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prepare for Y8950/YMU759 ADPCM

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This commit is contained in:
tildearrow 2022-05-13 14:59:36 -05:00
parent 34d868522b
commit 4a563a416e
4 changed files with 152 additions and 5 deletions
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21
src/engine/platform/opl.h
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@ -23,6 +23,16 @@
#include "../macroInt.h"
#include <queue>
#include "../../../extern/opl/opl3.h"
#include "sound/ymfm/ymfm_adpcm.h"
class DivOPLAInterface: public ymfm::ymfm_interface {
public:
unsigned char* adpcmBMem;
int sampleBank;
uint8_t ymfm_external_read(ymfm::access_class type, uint32_t address);
void ymfm_external_write(ymfm::access_class type, uint32_t address, uint8_t data);
DivOPLAInterface(): adpcmBMem(NULL), sampleBank(0) {}
};
class DivPlatformOPL: public DivDispatch {
protected:
@ -73,13 +83,18 @@ class DivPlatformOPL: public DivDispatch {
};
std::queue<QueuedWrite> writes;
opl3_chip fm;
unsigned char* adpcmBMem;
size_t adpcmBMemLen;
DivOPLAInterface iface;
ymfm::adpcm_b_engine* adpcmB;
const unsigned char** slotsNonDrums;
const unsigned char** slotsDrums;
const unsigned char** slots;
const unsigned short* chanMap;
const unsigned char* outChanMap;
double chipFreqBase;
int delay, oplType, chans, melodicChans, totalChans;
int delay, oplType, chans, melodicChans, totalChans, adpcmChan;
unsigned char lastBusy;
unsigned char drumState;
unsigned char drumVol[5];
@ -127,6 +142,10 @@ class DivPlatformOPL: public DivDispatch {
void poke(unsigned int addr, unsigned short val);
void poke(std::vector<DivRegWrite>& wlist);
const char* getEffectName(unsigned char effect);
const void* getSampleMem(int index);
size_t getSampleMemCapacity(int index);
size_t getSampleMemUsage(int index);
void renderSamples();
int init(DivEngine* parent, int channels, int sugRate, unsigned int flags);
void quit();
~DivPlatformOPL();