#ifndef LIBRARIES_IFF_H
#define LIBRARIES_IFF_H
/*
**
**  $Id: iff.h,v 23.2 93/05/24 16:03:28 chris Exp $
**  $Revision: 23.2 $
**
**  $Filename: Libraries/iff.h $
**  $Author: Christian A. Weber $
**  $Release: 23.2 $
**  $Date: 93/05/24 16:03:28 $
**
**  Standard header file for programs using iff.library
**
**  COPYRIGHT (C) 1987-1993 BY CHRISTIAN A. WEBER, BRUGGERWEG 2,
**  CH-8037 ZUERICH, SWITZERLAND (chris@mighty.adsp.sub.org).
**  THIS FILE MAY BE FREELY DISTRIBUTED. USE AT YOUR OWN RISK.
**
*/

#ifndef EXEC_TYPES_H
#include <exec/types.h>
#endif

#define IFFNAME "iff.library"
#define IFFVERSION 23L			/* Current library version */

/****************************************************************************
**  Error codes (returned by IFFL_IFFError())
*/

#define IFFL_ERROR_BADTASK	    -1	/* IFFL_IFFError() called by wrong task */
#define IFFL_ERROR_OPEN		    16	/* Can't open file */
#define IFFL_ERROR_READ		    17	/* Error reading file */
#define IFFL_ERROR_NOMEM	    18	/* Not enough memory */
#define IFFL_ERROR_NOTIFF	    19	/* File is not an IFF file */
#define IFFL_ERROR_WRITE	    20	/* Error writing file */
#define IFFL_ERROR_NOILBM	    24	/* IFF file is not of type ILBM */
#define IFFL_ERROR_NOBMHD	    25	/* BMHD chunk not found */
#define IFFL_ERROR_NOBODY	    26	/* BODY chunk not found */
#define IFFL_ERROR_BADCOMPRESSION   28	/* Unknown compression type */
#define IFFL_ERROR_NOANHD	    29	/* ANHD chunk not found */
#define IFFL_ERROR_NODLTA	    30	/* DLTA chunk not found */

#ifdef IFFLIB_PRE21NAMES
#define IFF_BADTASK -1
#define IFF_CANTOPENFILE 16
#define IFF_READERROR 17
#define IFF_NOMEM 18
#define IFF_NOTIFF 19
#define IFF_WRITEERROR 20
#define IFF_NOILBM 24
#define IFF_NOBMHD 25
#define IFF_NOBODY 26
#define IFF_TOOMANYPLANES 27
#define IFF_UNKNOWNCOMPRESSION 28
#define IFF_NOANHD 29
#define IFF_NODLTA 30
#endif


/****************************************************************************
**  Common IFF IDs
*/

#define IFFL_MAKE_ID(a,b,c,d) ((ULONG)(a)<<24L|(ULONG)(b)<<16L|(c)<<8|(d))

/*
**  Generic IFF IDs
*/
#ifndef ID_FORM	    /* don't redefine these if iffparse.h is included */
#define ID_FORM IFFL_MAKE_ID('F','O','R','M')
#define ID_CAT	IFFL_MAKE_ID('C','A','T',' ')
#define ID_LIST IFFL_MAKE_ID('L','I','S','T')
#define ID_PROP IFFL_MAKE_ID('P','R','O','P')
#endif

/*
**  Specific IFF IDs
*/
#define ID_ANIM IFFL_MAKE_ID('A','N','I','M')
#define ID_ANHD IFFL_MAKE_ID('A','N','H','D')
#define ID_ANNO IFFL_MAKE_ID('A','N','N','O')
#define ID_BMHD IFFL_MAKE_ID('B','M','H','D')
#define ID_BODY IFFL_MAKE_ID('B','O','D','Y')
#define ID_CAMG IFFL_MAKE_ID('C','A','M','G')
#define ID_CLUT IFFL_MAKE_ID('C','L','U','T')
#define ID_CMAP IFFL_MAKE_ID('C','M','A','P')
#define ID_CRNG IFFL_MAKE_ID('C','R','N','G')
#define ID_CTBL IFFL_MAKE_ID('C','T','B','L')
#define ID_DLTA IFFL_MAKE_ID('D','L','T','A')
#define ID_ILBM IFFL_MAKE_ID('I','L','B','M')
#define ID_SHAM IFFL_MAKE_ID('S','H','A','M')

#define ID_8SVX IFFL_MAKE_ID('8','S','V','X')
#define ID_ATAK IFFL_MAKE_ID('A','T','A','K')
#ifndef ID_NAME
#define ID_NAME IFFL_MAKE_ID('N','A','M','E')
#endif
#define ID_RLSE IFFL_MAKE_ID('R','L','S','E')
#define ID_VHDR IFFL_MAKE_ID('V','H','D','R')

#ifdef IFFLIB_PRE21NAMES
#define MakeID(a,b,c,d) ((ULONG)(a)<<24L|(ULONG)(b)<<16L|(c)<<8|(d))
#endif


/****************************************************************************
**  Modes for IFFL_OpenIFF()
*/

#define IFFL_MODE_READ	0
#define IFFL_MODE_WRITE 1


/****************************************************************************
**  Modes for IFFL_CompressBlock() and IFFL_DecompressBlock()
*/

#define IFFL_COMPR_NONE	    0x0000	/* generic */
#define IFFL_COMPR_BYTERUN1 0x0001	/* ILBM */
#define IFFL_COMPR_FIBDELTA 0x0101	/* 8SVX */


/****************************************************************************
**  Structure definitions
*/

/*
**  The private IFF 'FileHandle' structure
*/
typedef void *IFFL_HANDLE;


/*
**  Generic IFF chunk structure
*/
struct IFFL_Chunk
{
    LONG  ckID;
    LONG  ckSize;
/*  UBYTE ckData[ckSize] (variable sized data) */
};


/*
**  BMHD chunk (BitMapHeader) of ILBM files
*/
struct IFFL_BMHD
{
    UWORD w,h;
    WORD  x,y;
    UBYTE nPlanes;
    UBYTE masking;
    UBYTE compression;
    UBYTE pad1;
    UWORD transparentColor;
    UBYTE xAspect,yAspect;
    WORD  pageWidth,pageHeight;
};


/*
**  ANHD chunk (AnimHeader) of ANIM files
*/
struct IFFL_ANHD
{
    UBYTE   Operation;
    UBYTE   Mask;
    UWORD   W;
    UWORD   H;
    WORD    X;
    WORD    Y;
    ULONG   AbsTime;
    ULONG   RelTime;
    UBYTE   Interleave;
    UBYTE   pad0;
    ULONG   Bits;
    UBYTE   pad[16];
};

#ifdef IFFLIB_PRE21NAMES
#define Chunk IFFL_Chunk
#define BitMapHeader IFFL_BMHD
#define AnimHeader IFFL_ANHD
#endif


/****************************************************************************
**  IFF library function prototypes (ANSI C)
*/

void		     IFFL_CloseIFF	  ( IFFL_HANDLE );
ULONG		     IFFL_CompressBlock	  ( APTR, APTR, ULONG, ULONG );
BOOL		     IFFL_DecodePic	  ( IFFL_HANDLE, struct BitMap * );
ULONG		     IFFL_DecompressBlock ( APTR, APTR, ULONG, ULONG );
void		    *IFFL_FindChunk	  ( IFFL_HANDLE, LONG );
struct IFFL_BMHD    *IFFL_GetBMHD	  ( IFFL_HANDLE );
LONG		     IFFL_GetColorTab	  ( IFFL_HANDLE, WORD * );
ULONG		     IFFL_GetViewModes	  ( IFFL_HANDLE );
LONG		     IFFL_IFFError	  ( void );
BOOL		     IFFL_ModifyFrame	  ( void *, struct BitMap * );
APTR		     IFFL_NewOpenIFF	  ( char *, LONG );
IFFL_HANDLE	     IFFL_OpenIFF	  ( char *, ULONG );
LONG		     IFFL_PopChunk	  ( IFFL_HANDLE );
IFFL_HANDLE	     IFFL_PPOpenIFF	  ( char *, char * );
LONG		     IFFL_PushChunk	  ( IFFL_HANDLE, ULONG, ULONG );
BOOL		     IFFL_SaveBitMap	  ( char *, struct BitMap *, WORD *, LONG );
BOOL		     IFFL_SaveClip	  ( char *, struct BitMap *, WORD *, LONG,
							LONG, LONG, LONG, LONG );
LONG		     IFFL_WriteChunkBytes ( IFFL_HANDLE, void *, LONG );


#ifdef IFFLIB_PRE21NAMES
IFFL_HANDLE OpenIFF(char *);
void CloseIFF(IFFL_HANDLE);
void *FindChunk(IFFL_HANDLE,LONG);
struct BitMapHeader *GetBMHD(IFFL_HANDLE);
LONG GetColorTab(IFFL_HANDLE,WORD *);
BOOL DecodePic(IFFL_HANDLE,struct BitMap *);
BOOL SaveBitMap(char *,struct BitMap *,WORD *,LONG);
BOOL SaveClip(char *,struct BitMap *,WORD *,LONG,LONG,LONG,LONG,LONG);
LONG IFFError(void);
ULONG GetViewModes(IFFL_HANDLE);
APTR NewOpenIFF(char *,LONG);
BOOL ModifyFrame(void *,struct BitMap *);
IFFL_HANDLE PPOpenIFF(char *,char *);
#endif


/****************************************************************************
**  Pragmas for SAS/C
**  (generated with: 'fd2pragma iff_lib.fd iff_pragmas.h')
*/

extern struct Library *IFFBase;

#ifndef NO_PRAGMAS
/*pragma libcall IFFBase IFFL_OldOpenIFF 1E 801*/
#pragma libcall IFFBase IFFL_CloseIFF 24 901
#pragma libcall IFFBase IFFL_FindChunk 2A 0902
#pragma libcall IFFBase IFFL_GetBMHD 30 901
#pragma libcall IFFBase IFFL_GetColorTab 36 8902
#pragma libcall IFFBase IFFL_DecodePic 3C 8902
#pragma libcall IFFBase IFFL_SaveBitMap 42 0A9804
#pragma libcall IFFBase IFFL_SaveClip 48 43210A9808
#pragma libcall IFFBase IFFL_IFFError 4E 0
#pragma libcall IFFBase IFFL_GetViewModes 54 901
/*pragma libcall IFFBase IFFL_OldNewOpenIFF 5A 0802*/
#pragma libcall IFFBase IFFL_ModifyFrame 60 8902
/*#pragma libcall IFFBase IFFL_PPOpenIFF 66 9802*/
/*--- functions in V21 or higher ---*/
#pragma libcall IFFBase IFFL_OpenIFF 78 0802
#pragma libcall IFFBase IFFL_PushChunk 7E 10803
#pragma libcall IFFBase IFFL_PopChunk 84 801
#pragma libcall IFFBase IFFL_WriteChunkBytes 8A 09803
#pragma libcall IFFBase IFFL_CompressBlock 90 109804
#pragma libcall IFFBase IFFL_DecompressBlock 96 109804

#ifdef IFFLIB_PRE21NAMES
#pragma libcall IFFBase OpenIFF 1e 801
#pragma libcall IFFBase CloseIFF 24 901
#pragma libcall IFFBase FindChunk 2a 0902
#pragma libcall IFFBase GetBMHD 30 901
#pragma libcall IFFBase GetColorTab 36 8902
#pragma libcall IFFBase DecodePic 3c 8902
#pragma libcall IFFBase SaveBitMap 42 0a9804
#pragma libcall IFFBase SaveClip 48 43210A9808
#pragma libcall IFFBase IFFError 4e 0
#pragma libcall IFFBase GetViewModes 54 901
#pragma libcall IFFBase NewOpenIFF 5a 0802
#pragma libcall IFFBase ModifyFrame 60 8902
/*#pragma libcall IFFBase PPOpenIFF 66 9802*/
#endif

#endif

#endif