IFND	XMREPLAY_I
XMREPLAY_I	SET	1
**
**	XModule replay routine 1.0
**
**	Copyright (C) 1995 Bernardo Innocenti
**
**	Assembler structure definitions for player
**

	IFND	EXEC_TYPES_I
	include exec/types.i
	ENDC


	STRUCTURE PlayerCmd,MN_SIZE
	ULONG	pcmd_ID
	APTR	pcmd_Data
	LONG	pcmd_Err
	LABEL	PlayerCmd_size


	ENUM -1
	EITEM PCMD_SETUP
	EITEM PCMD_PLAY
	EITEM PCMD_INIT
	EITEM PCMD_COUNT

	ENUM 0
	EITEM PERR_OK
	EITEM PERR_UNKNOWN_COMMAND
	EITEM PERR_NO_AUDIO



	STRUCTURE NoteStruct,0
	APTR	nst_Channels		; pointer to a list of notechannels
	ULONG	nst_Flags		; misc flags (see below)
	ULONG	nst_MaxFrequency	; max. frequency of this player (28,867 Hz in DMA mode)
	UWORD	nst_MaxVolume		; max. volume of this player (in most cases 64)
	STRUCT	nst_Reserved,18		; reserved for future use (must be 0 for now)
	LABEL	NoteStruct_SIZE


	BITDEF	NST,Dummy,0		; only a dummy-NoteStruct (no NotePlayer needed)
	BITDEF	NST,Period,1		; Amiga period supplied instead of frequency
	BITDEF	NST,ExtPeriod,2		; Extended period (period*4) supplied instead of frequency
	BITDEF	NST,NTSCTiming,3	; Period/ExtPeriod supplied in NTSC instead of PAL
	BITDEF	NST,EvenLength,4	; Samplelength supplied as WORD instead of LONG
	BITDEF	NST,AllRepeats,5	; play Repeats even if no One-Shot part was played yet

	BITDEF	NST,Reverse,8		; little endian byte ordering
	BITDEF	NST,Signed,9		; sample data is signed linear (2's complement)
	BITDEF	NST,Unsigned,10		;	-"-	unsigned linear
	BITDEF	NST,Ulaw,11		;	-"-	U-law (logarithmic)
	BITDEF	NST,Alaw,12		;	-"-	A-law (logarithmic)
	BITDEF	NST,Float,13		;	-"-	IEEE floats

	BITDEF	NST,7Bit,16		; sample data is in 7-bit format
	BITDEF	NST,8Bit,17		;	-"-	bytes
	BITDEF	NST,16Bit,18		;	-"-	16-bit words
	BITDEF	NST,24Bit,19		;	-"-	24-bit data
	BITDEF	NST,32Bit,20		;	-"-	longwords
	BITDEF	NST,64Bit,21		;	-"-	quadwords

NSTD_TypeMask EQU NSTF_Reverse!NSTF_Signed!NSTF_Unsigned!NSTF_Ulaw!NSTF_Alaw!NSTF_Float
NSTD_SizeMask EQU NSTF_7Bit!NSTF_8Bit!NSTF_16Bit!NSTF_24Bit!NSTF_32Bit!NSTF_64Bit


	STRUCTURE NoteChannel,0
	APTR	nch_NextChannel		; next channel in the list (NULL if last)
	ULONG	nch_NotePlayer		; for use by the noteplayer (the deliplayer must ignore this)
	WORD	nch_Reserved0		; reserved for future use (must be 0 for now)
	UBYTE	nch_Private		; just what it says
	UBYTE	nch_Changed		; what has changed since last call
	WORD	nch_StereoPos		; set this field when the InitNote function is called
	WORD	nch_Stereo		; describes "where" this channel is supposed to play
	APTR	nch_SampleStart		; ^sampledata
	ULONG	nch_SampleLength	; size of sample
	APTR	nch_RepeatStart		; ^repeat part of sample
	ULONG	nch_RepeatLength	; size of repeat part
	ULONG	nch_Frequency		; frequency (or period) of sample
	UWORD	nch_Volume		; volume of sample
	STRUCT	nch_Reserved1,26	; reserved for future use (must be 0 for now)
	LABEL	NoteChannel_SIZE


	BITDEF	NCH,Stereo,0		; pan position of channel has changed (???)
	BITDEF	NCH,Sample,1		; one-shot part of sample has changed
	BITDEF	NCH,Repeat,2		; repeat part of sample has changed
	BITDEF	NCH,Frequency,3		; frequency has changed
	BITDEF	NCH,Volume,4		; volume (or pan position ???) has changed
	BITDEF	NCH,Trigger,5		; trigger sample

	BITDEF	NCH,Loop,16		; sample has looped at least once (set by DeliTracker)

NCHD_Ignore	EQU	-32768		; ignore this notechannel
NCHD_Balanced	EQU	0		; play balanced on both sides
NCHD_FarLeft	EQU	-32767		; play only on left speaker
NCHD_FarRight	EQU	32767		; play only on right speaker


	ENDC	; !XMREPLAY_I