Player.i

   1         IFND    XMREPLAY_I
   2 XMREPLAY_I      SET     1
   3 **
   4 **      XModule replay routine 1.0
   5 **
   6 **      Copyright (C) 1995 Bernardo Innocenti
   7 **
   8 **      Assembler structure definitions for player
   9 **
  10
  11         IFND    EXEC_TYPES_I
  12         include exec/types.i
  13         ENDC
  14
  15
  16         STRUCTURE PlayerCmd,MN_SIZE
  17         ULONG   pcmd_ID
  18         APTR    pcmd_Data
  19         LONG    pcmd_Err
  20         LABEL   PlayerCmd_size
  21
  22
  23         ENUM -1
  24         EITEM PCMD_SETUP
  25         EITEM PCMD_PLAY
  26         EITEM PCMD_INIT
  27         EITEM PCMD_COUNT
  28
  29         ENUM 0
  30         EITEM PERR_OK
  31         EITEM PERR_UNKNOWN_COMMAND
  32         EITEM PERR_NO_AUDIO
  33
  34
  35
  36         STRUCTURE NoteStruct,0
  37         APTR    nst_Channels            ; pointer to a list of notechannels
  38         ULONG   nst_Flags               ; misc flags (see below)
  39         ULONG   nst_MaxFrequency        ; max. frequency of this player (28,867 Hz in DMA mode)
  40         UWORD   nst_MaxVolume           ; max. volume of this player (in most cases 64)
  41         STRUCT  nst_Reserved,18         ; reserved for future use (must be 0 for now)
  42         LABEL   NoteStruct_SIZE
  43
  44
  45         BITDEF  NST,Dummy,0             ; only a dummy-NoteStruct (no NotePlayer needed)
  46         BITDEF  NST,Period,1            ; Amiga period supplied instead of frequency
  47         BITDEF  NST,ExtPeriod,2         ; Extended period (period*4) supplied instead of frequency
  48         BITDEF  NST,NTSCTiming,3        ; Period/ExtPeriod supplied in NTSC instead of PAL
  49         BITDEF  NST,EvenLength,4        ; Samplelength supplied as WORD instead of LONG
  50         BITDEF  NST,AllRepeats,5        ; play Repeats even if no One-Shot part was played yet
  51
  52         BITDEF  NST,Reverse,8           ; little endian byte ordering
  53         BITDEF  NST,Signed,9            ; sample data is signed linear (2's complement)
  54         BITDEF  NST,Unsigned,10         ;       -"-     unsigned linear
  55         BITDEF  NST,Ulaw,11             ;       -"-     U-law (logarithmic)
  56         BITDEF  NST,Alaw,12             ;       -"-     A-law (logarithmic)
  57         BITDEF  NST,Float,13            ;       -"-     IEEE floats
  58
  59         BITDEF  NST,7Bit,16             ; sample data is in 7-bit format
  60         BITDEF  NST,8Bit,17             ;       -"-     bytes
  61         BITDEF  NST,16Bit,18            ;       -"-     16-bit words
  62         BITDEF  NST,24Bit,19            ;       -"-     24-bit data
  63         BITDEF  NST,32Bit,20            ;       -"-     longwords
  64         BITDEF  NST,64Bit,21            ;       -"-     quadwords
  65
  66 NSTD_TypeMask EQU NSTF_Reverse!NSTF_Signed!NSTF_Unsigned!NSTF_Ulaw!NSTF_Alaw!NSTF_Float
  67 NSTD_SizeMask EQU NSTF_7Bit!NSTF_8Bit!NSTF_16Bit!NSTF_24Bit!NSTF_32Bit!NSTF_64Bit
  68
  69
  70         STRUCTURE NoteChannel,0
  71         APTR    nch_NextChannel         ; next channel in the list (NULL if last)
  72         ULONG   nch_NotePlayer          ; for use by the noteplayer (the deliplayer must ignore this)
  73         WORD    nch_Reserved0           ; reserved for future use (must be 0 for now)
  74         UBYTE   nch_Private             ; just what it says
  75         UBYTE   nch_Changed             ; what has changed since last call
  76         WORD    nch_StereoPos           ; set this field when the InitNote function is called
  77         WORD    nch_Stereo              ; describes "where" this channel is supposed to play
  78         APTR    nch_SampleStart         ; ^sampledata
  79         ULONG   nch_SampleLength        ; size of sample
  80         APTR    nch_RepeatStart         ; ^repeat part of sample
  81         ULONG   nch_RepeatLength        ; size of repeat part
  82         ULONG   nch_Frequency           ; frequency (or period) of sample
  83         UWORD   nch_Volume              ; volume of sample
  84         STRUCT  nch_Reserved1,26        ; reserved for future use (must be 0 for now)
  85         LABEL   NoteChannel_SIZE
  86
  87
  88         BITDEF  NCH,Stereo,0            ; pan position of channel has changed (???)
  89         BITDEF  NCH,Sample,1            ; one-shot part of sample has changed
  90         BITDEF  NCH,Repeat,2            ; repeat part of sample has changed
  91         BITDEF  NCH,Frequency,3         ; frequency has changed
  92         BITDEF  NCH,Volume,4            ; volume (or pan position ???) has changed
  93         BITDEF  NCH,Trigger,5           ; trigger sample
  94
  95         BITDEF  NCH,Loop,16             ; sample has looped at least once (set by DeliTracker)
  96
  97 NCHD_Ignore     EQU     -32768          ; ignore this notechannel
  98 NCHD_Balanced   EQU     0               ; play balanced on both sides
  99 NCHD_FarLeft    EQU     -32767          ; play only on left speaker
 100 NCHD_FarRight   EQU     32767           ; play only on right speaker
 101
 102
 103         ENDC    ; !XMREPLAY_I