1 /* Copyright (C) 1998 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: gsropc.h,v 1.5 2002/06/16 08:45:42 lpd Exp $ */ 18 /* RasterOp-compositing interface */ 19 20 #ifndef gsropc_INCLUDED 21 # define gsropc_INCLUDED 22 23 #include "gscompt.h" 24 #include "gsropt.h" 25 26 /* 27 * Define parameters for RasterOp-compositing. 28 * There are two kinds of RasterOp compositing operations. 29 * If texture == 0, the input data are the texture, and the source is 30 * implicitly all 0 (black). If texture != 0, it defines the texture, 31 * and the input data are the source. Note that in the latter case, 32 * the client (the caller of gs_create_composite_rop) promises that 33 * *texture will not change. 34 */ 35 36 #ifndef gx_device_color_DEFINED 37 # define gx_device_color_DEFINED 38 typedef struct gx_device_color_s gx_device_color; 39 40 #endif 41 42 typedef struct gs_composite_rop_params_s { 43 gs_logical_operation_t log_op; 44 const gx_device_color *texture; 45 } gs_composite_rop_params_t; 46 47 /* Create a RasterOp-compositing object. */ 48 int gs_create_composite_rop(gs_composite_t ** ppcte, 49 const gs_composite_rop_params_t * params, 50 gs_memory_t * mem); 51 52 #endif /* gsropc_INCLUDED */ 53