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Amiga ACS 1998 #6
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ibitblt.h
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/*
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
*/
/*
* $Source: f:/miner/source/2d/rcs/ibitblt.h $
* $Revision: 1.2 $
* $Author: john $
* $Date: 1994/05/31 11:10:56 $
*
* Prototypes for the ibitblt functions.
*
* $Log: ibitblt.h $
* Revision 1.2 1994/05/31 11:10:56 john
* *** empty log message ***
*
* Revision 1.1 1994/05/30 16:08:46 john
* Initial revision
*
*
*/
#ifndef _IBITBLT_H
#define _IBITBLT_H
// Finds location/size of the largest "hole" in bitmap mask_bmp
void gr_ibitblt_find_hole_size ( grs_bitmap * mask_bmp, int *minx, int *miny, int *maxx, int *maxy );
// Creates a code mask that will copy data from a bitmap that is sw by sh starting from
// location sx, sy with a rowsize of srowsize onto another bitmap but only copies
// into pixel locations that are defined as transparent in bitmap bmp.
ubyte * gr_ibitblt_create_mask ( grs_bitmap * mask_bmp, int sx, int sy, int sw, int sh, int srowsize );
// Copy source bitmap onto destination bitmap, not copying pixels that are defined
// transparent by the mask
void gr_ibitblt (grs_bitmap * source_bmp, grs_bitmap * dest_bmp, ubyte * mask );
#endif