diff options
| -rw-r--r-- | audio/fmopl.h | 5 | ||||
| -rw-r--r-- | audio/softsynth/opl/mame.cpp | 14 | ||||
| -rw-r--r-- | audio/softsynth/opl/mame.h | 2 |
3 files changed, 17 insertions, 4 deletions
diff --git a/audio/fmopl.h b/audio/fmopl.h index fbce36f077..b88325a52e 100644 --- a/audio/fmopl.h +++ b/audio/fmopl.h @@ -23,7 +23,10 @@ #define SOUND_FMOPL_H #include "common/scummsys.h" -#include "common/str.h" + +namespace Common { +class String; +} namespace OPL { diff --git a/audio/softsynth/opl/mame.cpp b/audio/softsynth/opl/mame.cpp index b380a15345..9cc35971eb 100644 --- a/audio/softsynth/opl/mame.cpp +++ b/audio/softsynth/opl/mame.cpp @@ -546,7 +546,7 @@ inline void OPL_CALC_RH(FM_OPL *OPL, OPL_CH *CH) { // but EG_STEP = 96.0/EG_ENT, and WHITE_NOISE_db=6.0. So, that's equivalent to // int(OPL->rnd.getRandomBit() * EG_ENT/16). We know that EG_ENT is 4096, or 1024, // or 128, so we can safely avoid any FP ops. - int whitenoise = OPL->rnd.getRandomBit() * (EG_ENT>>4); + int whitenoise = OPL->rnd->getRandomBit() * (EG_ENT>>4); int tone8; @@ -1126,6 +1126,15 @@ FM_OPL *OPLCreate(int type, int clock, int rate) { OPL->rate = rate; OPL->max_ch = max_ch; + // Init the random source. Note: We use a fixed name for it here. + // So if multiple FM_OPL objects exist in parallel, then their + // random sources will have an equal name. At least in the + // current EventRecorder implementation, this causes no problems; + // but this is probably not guaranteed. + // Alas, it does not seem worthwhile to bother much with this + // at the time, so I am leaving it as it is. + OPL->rnd = new Common::RandomSource("mame"); + /* init grobal tables */ OPL_initalize(OPL); @@ -1134,9 +1143,10 @@ FM_OPL *OPLCreate(int type, int clock, int rate) { return OPL; } -/* ---------- Destroy one of vietual YM3812 ---------- */ +/* ---------- Destroy one of virtual YM3812 ---------- */ void OPLDestroy(FM_OPL *OPL) { OPL_UnLockTable(); + delete OPL->rnd; free(OPL); } diff --git a/audio/softsynth/opl/mame.h b/audio/softsynth/opl/mame.h index 4c40949483..803ca897e7 100644 --- a/audio/softsynth/opl/mame.h +++ b/audio/softsynth/opl/mame.h @@ -147,7 +147,7 @@ typedef struct fm_opl_f { OPL_UPDATEHANDLER UpdateHandler; /* stream update handler */ int UpdateParam; /* stream update parameter */ - Common::RandomSource rnd; + Common::RandomSource *rnd; } FM_OPL; /* ---------- Generic interface section ---------- */ |