workbench/devs/AHI/Device/ahi_def.h

   1 /*
   2      AHI - Hardware independent audio subsystem
   3      Copyright (C) 1996-2005 Martin Blom <martin@blom.org>
   4
   5      This library is free software; you can redistribute it and/or
   6      modify it under the terms of the GNU Library General Public
   7      License as published by the Free Software Foundation; either
   8      version 2 of the License, or (at your option) any later version.
   9
  10      This library is distributed in the hope that it will be useful,
  11      but WITHOUT ANY WARRANTY; without even the implied warranty of
  12      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13      Library General Public License for more details.
  14
  15      You should have received a copy of the GNU Library General Public
  16      License along with this library; if not, write to the
  17      Free Software Foundation, Inc., 59 Temple Place - Suite 330, Cambridge,
  18      MA 02139, USA.
  19 */
  20
  21 #ifndef ahi_ahi_def_h
  22 #define ahi_ahi_def_h
  23
  24 #include <config.h>
  25
  26 /*** AHI include files ***/
  27
  28 #include <exec/semaphores.h>
  29 #include <exec/devices.h>
  30 #include <devices/ahi.h>
  31 #include <devices/timer.h>
  32 #include <dos/dos.h>
  33 #include <libraries/ahi_sub.h>
  34 #include <utility/hooks.h>
  35
  36 struct Echo;
  37 struct AHIDevUnit;
  38
  39
  40 /*** Globals ***/
  41
  42 extern struct AHIBase           *AHIBase;
  43
  44
  45 /*** Definitions ***/
  46
  47 typedef long long int   Fixed64;
  48
  49 #define AHI_UNITS       4       /* Normal units, excluding AHI_NO_UNIT */
  50
  51 #define AHIBB_NOSURROUND        (0)
  52 #define AHIBF_NOSURROUND        (1L<<0)
  53 #define AHIBB_NOECHO            (1)
  54 #define AHIBF_NOECHO            (1L<<1)
  55 #define AHIBB_FASTECHO          (2)
  56 #define AHIBF_FASTECHO          (1L<<2)
  57 #define AHIBB_CLIPPING          (3)
  58 #define AHIBF_CLIPPING          (1L<<3)
  59
  60 /* AHIBase */
  61 struct AHIBase
  62 {
  63   struct Library           ahib_Library;
  64   UBYTE                    ahib_Flags;
  65   UBYTE                    ahib_DebugLevel;
  66   struct ExecBase         *ahib_SysLib;
  67   BPTR                     ahib_SegList;
  68   APTR                     ahib_AudioCtrl;
  69   struct AHIDevUnit       *ahib_DevUnits[AHI_UNITS];
  70   struct SignalSemaphore   ahib_Lock;
  71   IPTR                     ahib_AudioMode;
  72   IPTR                     ahib_Frequency;
  73   SIPTR                    ahib_MonitorVolume;          // Fixed
  74   SIPTR                    ahib_InputGain;              // Fixed
  75   SIPTR                    ahib_OutputVolume;           // Fixed
  76   IPTR                     ahib_Input;
  77   IPTR                     ahib_Output;
  78   SIPTR                    ahib_MaxCPU;                 // Fixed
  79   SIPTR                    ahib_AntiClickTime;          // Fixed
  80   UWORD                    ahib_ScaleMode;
  81
  82 #ifdef __AMIGAOS4__
  83   struct AHIIFace*         ahib_IAHI;
  84 #endif
  85 };
  86
  87 #ifdef __AMIGAOS4__
  88 #define IAHI (AHIBase->ahib_IAHI)
  89 #endif
  90
  91
  92 struct Timer
  93 {
  94   struct EClockVal         EntryTime;
  95   struct EClockVal         ExitTime;
  96 };
  97
  98
  99 struct AHISoundData
 100 {
 101   ULONG   sd_Type;
 102   APTR    sd_Addr;
 103   ULONG   sd_Length;
 104 };
 105
 106 /* Private AHIChannelData */
 107
 108 struct AHIChannelData
 109 {
 110   UWORD   cd_EOS;                 /* $FFFF: Sample has reached end */
 111
 112   UBYTE   cd_FreqOK;              /* $00: Freq=0 ; $FF: Freq<>0 */
 113   UBYTE   cd_SoundOK;             /* $00: No sound set ; $FF: S. OK. */
 114   APTR    cd_DataStart;
 115   Fixed64 cd_Offset;
 116   Fixed64 cd_Add;
 117   Fixed64 cd_LastOffset;
 118   Fixed   cd_ScaleLeft;
 119   Fixed   cd_ScaleRight;
 120   Fixed   cd_VolumeLeft;
 121   Fixed   cd_VolumeRight;
 122   APTR    cd_AddRoutine;
 123   ULONG   cd_Type;
 124
 125   UWORD   cd_Pad0;
 126
 127   UBYTE   cd_NextFreqOK;
 128   UBYTE   cd_NextSoundOK;
 129   APTR    cd_NextDataStart;
 130   Fixed64 cd_NextOffset;
 131   Fixed64 cd_NextAdd;
 132   Fixed64 cd_NextLastOffset;
 133   Fixed   cd_NextScaleLeft;
 134   Fixed   cd_NextScaleRight;
 135   Fixed   cd_NextVolumeLeft;
 136   Fixed   cd_NextVolumeRight;
 137   APTR    cd_NextAddRoutine;
 138   ULONG   cd_NextType;
 139
 140   UWORD   cd_Pad1;
 141
 142   UBYTE   cd_DelayedFreqOK;
 143   UBYTE   cd_DelayedSoundOK;
 144   APTR    cd_DelayedDataStart;
 145   Fixed64 cd_DelayedOffset;
 146   Fixed64 cd_DelayedAdd;
 147   Fixed64 cd_DelayedLastOffset;
 148   Fixed   cd_DelayedScaleLeft;
 149   Fixed   cd_DelayedScaleRight;
 150   Fixed   cd_DelayedVolumeLeft;
 151   Fixed   cd_DelayedVolumeRight;
 152   APTR    cd_DelayedAddRoutine;
 153   ULONG   cd_DelayedType;
 154
 155   BOOL    cd_SoundDelayed;
 156   BOOL    cd_FreqDelayed;
 157   BOOL    cd_VolDelayed;
 158   UWORD   cd_Pad2;
 159
 160   LONG    cd_Samples;             /* Samples left to store (down-counter) */
 161   LONG    cd_FirstOffsetI;        /* for linear interpolation routines */
 162
 163   LONG    cd_DelayedSamples;
 164   LONG    cd_DelayedFirstOffsetI;
 165
 166   LONG    cd_StartPointL;         /* for linear interpolation routines */
 167   LONG    cd_TempStartPointL;     /* for linear interpolation routines */
 168   LONG    cd_StartPointR;         /* for linear interpolation routines */
 169   LONG    cd_TempStartPointR;     /* for linear interpolation routines */
 170
 171   // NOTE!! These must follow directly after cd_TempStartPointR ...
 172   LONG    cd_StartPointRL;        /* for linear interpolation routines */
 173   LONG    cd_TempStartPointRL;    /* for linear interpolation routines */
 174   LONG    cd_StartPointRR;        /* for linear interpolation routines */
 175   LONG    cd_TempStartPointRR;    /* for linear interpolation routines */
 176   LONG    cd_StartPointSL;        /* for linear interpolation routines */
 177   LONG    cd_TempStartPointSL;    /* for linear interpolation routines */
 178   LONG    cd_StartPointSR;        /* for linear interpolation routines */
 179   LONG    cd_TempStartPointSR;    /* for linear interpolation routines */
 180   LONG    cd_StartPointC;         /* for linear interpolation routines */
 181   LONG    cd_TempStartPointC;     /* for linear interpolation routines */
 182   LONG    cd_StartPointLFE;       /* for linear interpolation routines */
 183   LONG    cd_TempStartPointLFE;   /* for linear interpolation routines */
 184
 185 #define CD_L                    0
 186 #define CD_R                    2
 187 #define CD_RL                   4
 188 #define CD_RR                   6
 189 #define CD_SL                   8
 190 #define CD_SR                   10
 191 #define CD_C                    12
 192 #define CD_LFE                  14
 193
 194   struct AHIChannelData *cd_Succ; /* For the wet and dry lists */
 195   UWORD   cd_ChannelNo;
 196   UWORD   cd_Pad3;
 197   LONG    cd_AntiClickCount;
 198 };
 199
 200 #define AHIACB_NOMIXING 31              /* private ahiac_Flags flag */
 201 #define AHIACF_NOMIXING (1L<<31)        /* private ahiac_Flags flag */
 202 #define AHIACB_NOTIMING 30              /* private ahiac_Flags flag */
 203 #define AHIACF_NOTIMING (1L<<30)        /* private ahiac_Flags flag */
 204 #define AHIACB_POSTPROC 29              /* private ahiac_Flags flag */
 205 #define AHIACF_POSTPROC (1L<<29)        /* private ahiac_Flags flag */
 206 #define AHIACB_CLIPPING 28              /* private ahiac_Flags flag */
 207 #define AHIACF_CLIPPING (1L<<28)        /* private ahiac_Flags flag */
 208
 209 /* Private AudioCtrl structure */
 210
 211 struct PowerPCContext;
 212
 213 struct AHIPrivAudioCtrl
 214 {
 215   struct AHIAudioCtrlDrv     ac;
 216   struct Library*            ahiac_SubLib;
 217   ULONG                      ahiac_SubAllocRC;
 218   struct AHIChannelData*     ahiac_ChannelDatas;
 219   struct AHISoundData*       ahiac_SoundDatas;
 220   ULONG                      ahiac_BuffSizeNow;     /* How many bytes of the buffer are used? */
 221
 222   struct Hook*               ahiac_RecordFunc;      /* AHIA_RecordFunc */
 223   ULONG                      ahiac_AudioID;
 224   Fixed                      ahiac_MasterVolume;    /* Real */
 225   Fixed                      ahiac_SetMasterVolume; /* Set by user */
 226   Fixed                      ahiac_EchoMasterVolume;/* Set by dspecho */
 227   struct AHIEffOutputBuffer* ahiac_EffOutputBufferStruct;
 228   struct Echo*               ahiac_EffDSPEchoStruct;
 229   struct AHIEffChannelInfo*  ahiac_EffChannelInfoStruct;
 230   struct AHIChannelData*     ahiac_WetList;
 231   struct AHIChannelData*     ahiac_DryList;
 232   UBYTE                      ahiac_WetOrDry;
 233   UBYTE                      ahiac_Pad;
 234   UWORD                      ahiac_Channels2;       /* Max virtual channels/hw channel */
 235   struct Timer               ahiac_Timer;
 236   UWORD                      ahiac_UsedCPU;
 237   UWORD                      ahiac_MaxCPU;
 238   struct PowerPCContext*     ahiac_PowerPCContext;
 239   char                       ahiac_DriverName[ 256 ];
 240   #ifdef __AMIGAOS4__
 241   struct AHIsubIFace*        ahiac_IAHIsub;
 242   #endif
 243 };
 244
 245 #endif /* ahi_ahi_def_h */