1 /* Copyright (C) 1993, 1996, 1998, 1999 Aladdin Enterprises. All rights reserved. 2 3 This software is provided AS-IS with no warranty, either express or 4 implied. 5 6 This software is distributed under license and may not be copied, 7 modified or distributed except as expressly authorized under the terms 8 of the license contained in the file LICENSE in this distribution. 9 10 For more information about licensing, please refer to 11 http://www.ghostscript.com/licensing/. For information on 12 commercial licensing, go to http://www.artifex.com/licensing/ or 13 contact Artifex Software, Inc., 101 Lucas Valley Road #110, 14 San Rafael, CA 94903, U.S.A., +1(415)492-9861. 15 */ 16 17 /* $Id: gxclip2.h,v 1.5 2002/06/16 08:45:43 lpd Exp $ */ 18 /* Tiled mask clipping device and interface */ 19 20 #ifndef gxclip2_INCLUDED 21 # define gxclip2_INCLUDED 22 23 #include "gxmclip.h" 24 25 /* The structure for tile clipping is the same as for simple mask clipping. */ 26 typedef gx_device_mask_clip gx_device_tile_clip; 27 #define st_device_tile_clip st_device_mask_clip 28 /* 29 * We can't just make this macro empty, since it is processed as a top-level 30 * declaration and would lead to an extraneous semicolon. The least damage 31 * we can do is make it declare a constant (and not static, since static 32 * would lead to a compiler warning about an unreferenced variable). 33 */ 34 #define private_st_device_tile_clip() /* in gxclip2.c */\ 35 const byte gxclip2_dummy = 0 36 37 /* 38 * Initialize a tile clipping device from a mask. 39 * We supply an explicit phase. 40 */ 41 int tile_clip_initialize(gx_device_tile_clip * cdev, 42 const gx_strip_bitmap * tiles, 43 gx_device * tdev, int px, int py, 44 gs_memory_t *mem); 45 46 /* 47 * Set the phase of the tile -- used in the tiling loop when 48 * the tile doesn't simply fill the plane. 49 */ 50 void tile_clip_set_phase(gx_device_tile_clip * cdev, int px, int py); 51 52 #endif /* gxclip2_INCLUDED */ 53