51 lines
2.1 KiB
C
51 lines
2.1 KiB
C
/* $Id: ibitblt.h,v 1.3 2004-08-28 23:17:45 schaffner Exp $ */
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/*
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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/*
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*
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* Prototypes for the ibitblt functions.
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*
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*/
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#ifndef _IBITBLT_H
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#define _IBITBLT_H
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// Finds location/size of the largest "hole" in bitmap mask_bmp
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void gr_ibitblt_find_hole_size ( grs_bitmap * mask_bmp, int *minx, int *miny, int *maxx, int *maxy );
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// Creates a code mask that will copy data from a bitmap that is sw by
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// sh starting from location sx, sy with a rowsize of srowsize onto
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// another bitmap but only copies into pixel locations that are
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// defined as transparent in bitmap bmp.
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#ifdef __MSDOS__
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ubyte * gr_ibitblt_create_mask(grs_bitmap *mask_bmp, int sx, int sy, int sw, int sh, int srowsize);
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ubyte * gr_ibitblt_create_mask_svga(grs_bitmap *mask_bmp, int sx, int sy, int sw, int sh, int srowsize);
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ubyte * gr_ibitblt_create_mask_pa( grs_bitmap *mask_bmp, int sx, int sy, int sw, int sh, int srowsize);
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#else
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void gr_ibitblt_create_mask_pa(grs_bitmap *mask_bmp, int sx, int sy, int sw, int sh, int srowsize);
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void gr_ibitblt_create_mask(grs_bitmap *mask_bmp, int sx, int sy, int sw, int sh, int srowsize);
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#endif
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// Copy source bitmap onto destination bitmap, not copying pixels that
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// are defined transparent by the mask
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#ifdef __MSDOS__
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void gr_ibitblt(grs_bitmap *source_bmp, grs_bitmap *dest_bmp, ubyte *mask);
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#else
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void gr_ibitblt(grs_bitmap *source_bmp, grs_bitmap *dest_bmp, ubyte pixel_double);
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#endif
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#endif
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