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audio: added SSG-EG to YM2612, plus some timing changes for SN76496+YM2612

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This commit is contained in:
kub 2020-01-08 00:49:13 +01:00
parent 2a942f0d41
commit 8ac9ab7fcb
13 changed files with 571 additions and 455 deletions
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22
pico/sound/ym2612.h
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@ -53,6 +53,11 @@ typedef struct
};
UINT32 eg_pack[4];
};
UINT8 ssg; /* 0x30 SSG-EG waveform */
UINT8 ssgn;
UINT16 vol_out; /* 0x32 current output from EG (without LFO) */
UINT16 vol_ipol; /* 0x34 interpolator memory */
} FM_SLOT;
@ -176,21 +181,22 @@ int YM2612PicoStateLoad2(int *tat, int *tbt);
#else
/* GP2X specific */
#include "../../platform/gp2x/940ctl.h"
#define YM2612Init(baseclock,rate) { \
#define YM2612Init(baseclock,rate) do { \
if (PicoIn.opt&POPT_EXT_FM) YM2612Init_940(baseclock, rate); \
else YM2612Init_(baseclock, rate); \
}
#define YM2612ResetChip() { \
} while (0)
#define YM2612ResetChip() do { \
if (PicoIn.opt&POPT_EXT_FM) YM2612ResetChip_940(); \
else YM2612ResetChip_(); \
}
#define YM2612UpdateOne(buffer,length,stereo,is_buf_empty) \
} while (0)
#define YM2612UpdateOne(buffer,length,stereo,is_buf_empty) do { \
(PicoIn.opt&POPT_EXT_FM) ? YM2612UpdateOne_940(buffer, length, stereo, is_buf_empty) : \
YM2612UpdateOne_(buffer, length, stereo, is_buf_empty);
#define YM2612PicoStateLoad() { \
YM2612UpdateOne_(buffer, length, stereo, is_buf_empty); \
} while (0)
#define YM2612PicoStateLoad() do { \
if (PicoIn.opt&POPT_EXT_FM) YM2612PicoStateLoad_940(); \
else YM2612PicoStateLoad_(); \
}
} while (0)
#endif /* __GP2X__ */