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**
** $Id: SaveBitMap.S,v 21.1 92/05/15 03:23:02 chris Exp $
** $Revision: 21.1 $
**
** $Filename: SaveBitMap.S $
** $Author: chris $
** $Release: 19.1 $
** $Date: 92/05/15 03:23:02 $
**
** iff.library/IFFL_SaveBitMap
**
** COPYRIGHT (C) 1987-1992 BY CHRISTIAN A. WEBER, BRUGGERWEG 2,
** CH-8037 ZUERICH, SWITZERLAND. ALL RIGHTS RESERVED. NO PART
** OF THIS SOFTWARE MAY BE COPIED, REPRODUCED, OR TRANSMITTED
** IN ANY FORM OR BY ANY MEANS, WITHOUT THE PRIOR WRITTEN PER-
** MISSION OF THE AUTHOR. USE AT YOUR OWN RISK.
**
IDNT IFFL_SaveBitMap
SECTION text,CODE
INCLUDE "IFFLib.i"
XREF SaveClipFunc
XDEF SaveBitMapFunc
******* iff.library/IFFL_SaveBitMap *****************************************
*
* NAME
* IFFL_SaveBitMap -- save the planes of a BitMap as an IFF-file
*
* SYNOPSIS
* result = IFFL_SaveBitMap( filename, bitmap, colortable, flags )
* D0 A0 A1 A2 D0
*
* BOOL IFFL_SaveBitMap(char *, struct BitMap *, UWORD *, ULONG )
*
* FUNCTION
* Save the planes of a BitMap as an IFF-file, optionally with a
* colortable. The IFF file will contain the following chunks:
*
* FORM - The IFF header, with the type ILBM
* BMHD - The BitMap Header structre
* CMAP - The color map, this chunk is omitted if colortable is zero
* CAMG - The Amiga ViewModes word, contains the special ViewModes
* information (HAM, LACE, HIRES ...)
* BODY - The (crunched or uncompressed) picture
*
* INPUTS
* filename - Name of the IFF file to create
* bitmap - Pointer to the BitMap holding your picture
* colortable - Pointer to an Amiga ColorTable structure or zero
* (if colortable = 0, no CMAP chunk will be generated).
* flags - Bit 0: 1 = Use the "CmpByteRun1" compression algorythm,
* 0 = Save the file uncompressed
* Bit 7: 1 = This is a HAM (Hold and modify) picture
* 0 = This is a normal or Extra-Halfbrite picture
*
* RESULT
* Non-zero if successful, 0 if an error occurred. You can then call
* IFFL_IFFError() to know more about the reason of the failure.
*
* NOTE
* Up to V19 this routine needs at least 650 bytes of stack space
*
* SEE ALSO
* IFFL_SaveClip()
*
*****************************************************************************
SaveBitMapFunc: movem.l d2-d4,-(SP)
moveq #0,d1 ; X-Offset : 0
moveq #0,d2 ; Y-Offset : 0
move.w bm_BytesPerRow(a1),d3 ; Breite : maximal
move.w bm_Rows(a1),d4 ; Höhe : maximal
bsr SaveClipFunc ; als Ausschnitt speichern
movem.l (SP)+,d2-d4
rts
END
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