1 files changed, 164 insertions, 0 deletions

diff --git a/lib/rbcodec/codecs/libgme/emu2413.h b/lib/rbcodec/codecs/libgme/emu2413.h
new file mode 100644
index 0000000000..254f042957
--- /dev/null
+++ b/lib/rbcodec/codecs/libgme/emu2413.h
@@ -0,0 +1,164 @@
+#ifndef _EMU2413_H_
+#define _EMU2413_H_
+
+#include "blargg_common.h"
+#include "emutypes.h"
+
+#ifdef EMU2413_DLL_EXPORTS
+  #define EMU2413_API __declspec(dllexport)
+#elif defined(EMU2413_DLL_IMPORTS)
+  #define EMU2413_API __declspec(dllimport)
+#else
+  #define EMU2413_API
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define AUDIO_MONO_BUFFER_SIZE    1024
+
+#define PI 3.14159265358979323846
+
+enum OPLL_TONE_ENUM {OPLL_2413_TONE=0, OPLL_VRC7_TONE=1, OPLL_281B_TONE=2} ;
+
+/* voice data */
+typedef struct __OPLL_PATCH {
+  e_uint32 TL,FB,EG,ML,AR,DR,SL,RR,KR,KL,AM,PM,WF ;
+} OPLL_PATCH ;
+
+/* slot */
+typedef struct __OPLL_SLOT {
+
+  OPLL_PATCH *patch;  
+
+  e_int32 type ;          /* 0 : modulator 1 : carrier */
+
+  /* OUTPUT */
+  e_int32 feedback ;
+  e_int32 output[2] ;   /* Output value of slot */
+
+  /* for Phase Generator (PG) */
+  e_uint16 *sintbl ;    /* Wavetable */
+  e_uint32 phase ;      /* Phase */
+  e_uint32 dphase ;     /* Phase increment amount */
+  e_uint32 pgout ;      /* output */
+
+  /* for Envelope Generator (EG) */
+  e_int32 fnum ;          /* F-Number */
+  e_int32 block ;         /* Block */
+  e_int32 volume ;        /* Current volume */
+  e_int32 sustine ;       /* Sustine 1 = ON, 0 = OFF */
+  e_uint32 tll ;              /* Total Level + Key scale level*/
+  e_uint32 rks ;        /* Key scale offset (Rks) */
+  e_int32 eg_mode ;       /* Current state */
+  e_uint32 eg_phase ;   /* Phase */
+  e_uint32 eg_dphase ;  /* Phase increment amount */
+  e_uint32 egout ;      /* output */
+
+} OPLL_SLOT ;
+
+/* Mask */
+#define OPLL_MASK_CH(x) (1<<(x))
+#define OPLL_MASK_HH (1<<(9))
+#define OPLL_MASK_CYM (1<<(10))
+#define OPLL_MASK_TOM (1<<(11))
+#define OPLL_MASK_SD (1<<(12))
+#define OPLL_MASK_BD (1<<(13))
+#define OPLL_MASK_RHYTHM ( OPLL_MASK_HH | OPLL_MASK_CYM | OPLL_MASK_TOM | OPLL_MASK_SD | OPLL_MASK_BD )
+
+/* opll */
+typedef struct __OPLL {
+
+  e_uint32 adr ;
+  e_int32 out ;
+
+#ifndef EMU2413_COMPACTION
+  e_uint32 realstep ;
+  e_uint32 oplltime ;
+  e_uint32 opllstep ;
+  e_int32 prev, next ;
+  e_int32 sprev[2],snext[2];
+  e_uint32 pan[16];
+#endif
+
+  /* Register */
+  e_uint8 reg[0x40] ; 
+  e_int32 slot_on_flag[18] ;
+
+  /* Pitch Modulator */
+  e_uint32 pm_phase ;
+  e_int32 lfo_pm ;
+
+  /* Amp Modulator */
+  e_int32 am_phase ;
+  e_int32 lfo_am ;
+
+  e_uint32 quality;
+
+  /* Noise Generator */
+  e_uint32 noise_seed ;
+
+  /* Channel Data */
+  e_int32 patch_number[9];
+  e_int32 key_status[9] ;
+
+  /* Slot */
+  OPLL_SLOT slot[18] ;
+
+  /* Voice Data */
+  OPLL_PATCH patch[19*2] ;
+  e_int32 patch_update[2] ; /* flag for check patch update */
+
+  e_uint32 mask ;
+  e_uint32 current_mask;
+  e_uint32 status;
+  
+  e_uint32 internal_mute;
+  e_int16 buffer[AUDIO_MONO_BUFFER_SIZE];
+} OPLL ;
+
+/* Create Object */
+EMU2413_API void OPLL_new(OPLL *, e_uint32 clk, e_uint32 rate) ;
+EMU2413_API void OPLL_delete(OPLL *) ;
+
+/* Setup */
+EMU2413_API void OPLL_reset(OPLL *) ;
+EMU2413_API void OPLL_reset_patch(OPLL *, e_int32) ;
+EMU2413_API void OPLL_set_rate(OPLL *opll, e_uint32 r) ;
+EMU2413_API void OPLL_set_quality(OPLL *opll, e_uint32 q) ;
+EMU2413_API void OPLL_set_pan(OPLL *, e_uint32 ch, e_uint32 pan);
+EMU2413_API void OPLL_set_internal_mute(OPLL *, e_uint32 mute);
+EMU2413_API e_uint32 OPLL_is_internal_muted(OPLL *);
+
+/* Port/Register access */
+EMU2413_API void OPLL_writeIO(OPLL *, e_uint32 reg, e_uint32 val);
+EMU2413_API void OPLL_writeReg(OPLL *, e_uint32 reg, e_uint32 val);
+EMU2413_API e_uint32 OPLL_read(OPLL *, e_uint32 port);
+
+/* Synthsize */
+EMU2413_API e_int16 OPLL_calc(OPLL *) EMU2413_CALC_ICODE;
+EMU2413_API void OPLL_calc_stereo(OPLL *, e_int32 out[2]) ;
+EMU2413_API e_int16 *OPLL_update_buffer(OPLL *, e_uint32 length) ;
+
+/* Misc */
+EMU2413_API void OPLL_setPatch(OPLL *, const e_uint8 *dump) ;
+EMU2413_API void OPLL_copyPatch(OPLL *, e_int32, OPLL_PATCH *) ;
+EMU2413_API void OPLL_forceRefresh(OPLL *) ;
+/* Utility */
+EMU2413_API void OPLL_dump2patch(const e_uint8 *dump, OPLL_PATCH *patch) ;
+EMU2413_API void OPLL_patch2dump(const OPLL_PATCH *patch, e_uint8 *dump) ;
+EMU2413_API void OPLL_getDefaultPatch(e_int32 type, e_int32 num, OPLL_PATCH *) ;
+
+/* Channel Mask */
+EMU2413_API e_uint32 OPLL_setMask(OPLL *, e_uint32 mask) ;
+EMU2413_API e_uint32 OPLL_toggleMask(OPLL *, e_uint32 mask) ;
+
+#define dump2patch OPLL_dump2patch
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+