1 /* Copyright (C) 2000 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: gximage3.h,v 1.8 2002/06/16 08:55:53 lpd Exp $ */ 18 /* ImageType 3 internal API */ 19 20 #ifndef gximage3_INCLUDED 21 # define gximage3_INCLUDED 22 23 #include "gsiparm3.h" 24 #include "gxiparam.h" 25 26 /* 27 * The machinery for splitting an ImageType3 image into pixel and mask data 28 * is used both for imaging per se and for writing high-level output. 29 * We implement this by making the procedures for setting up the mask image 30 * and clipping devices virtual. 31 */ 32 33 /* 34 * Make the mask image device -- the device that processes mask bits. 35 * The device is closed and freed at the end of processing the image. 36 */ 37 #define IMAGE3_MAKE_MID_PROC(proc)\ 38 int proc(gx_device **pmidev, gx_device *dev, int width, int height,\ 39 gs_memory_t *mem) 40 typedef IMAGE3_MAKE_MID_PROC((*image3_make_mid_proc_t)); 41 42 /* 43 * Make the mask clip device -- the device that uses the mask image to 44 * clip the (opaque) image data -- and its enumerator. 45 * The device is closed and freed at the end of processing the image. 46 */ 47 #define IMAGE3_MAKE_MCDE_PROC(proc)\ 48 int proc(/* The initial arguments are those of begin_typed_image. */\ 49 gx_device *dev,\ 50 const gs_imager_state *pis,\ 51 const gs_matrix *pmat,\ 52 const gs_image_common_t *pic,\ 53 const gs_int_rect *prect,\ 54 const gx_drawing_color *pdcolor,\ 55 const gx_clip_path *pcpath, gs_memory_t *mem,\ 56 gx_image_enum_common_t **pinfo,\ 57 /* The following arguments are added. */\ 58 gx_device **pmcdev, gx_device *midev,\ 59 gx_image_enum_common_t *pminfo,\ 60 const gs_int_point *origin) 61 typedef IMAGE3_MAKE_MCDE_PROC((*image3_make_mcde_proc_t)); 62 63 /* 64 * Begin processing an ImageType 3 image, with the mask device creation 65 * procedures as additional parameters. 66 */ 67 int gx_begin_image3_generic(gx_device * dev, 68 const gs_imager_state *pis, 69 const gs_matrix *pmat, 70 const gs_image_common_t *pic, 71 const gs_int_rect *prect, 72 const gx_drawing_color *pdcolor, 73 const gx_clip_path *pcpath, gs_memory_t *mem, 74 IMAGE3_MAKE_MID_PROC((*make_mid)), 75 IMAGE3_MAKE_MCDE_PROC((*make_mcde)), 76 gx_image_enum_common_t **pinfo); 77 78 #endif /* gximage3_INCLUDED */ 79