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- /* Copyright (C) 1989, 1992 Aladdin Enterprises. All rights reserved.
-
- This file is part of Ghostscript.
-
- Ghostscript is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- to anyone for the consequences of using it or for whether it serves any
- particular purpose or works at all, unless he says so in writing. Refer
- to the Ghostscript General Public License for full details.
-
- Everyone is granted permission to copy, modify and redistribute
- Ghostscript, but only under the conditions described in the Ghostscript
- General Public License. A copy of this license is supposed to have been
- given to you along with Ghostscript so you can know your rights and
- responsibilities. It should be in a file named COPYING. Among other
- things, the copyright notice and this notice must be preserved on all
- copies. */
-
- /* gzstate.h */
- /* Private graphics state definition for Ghostscript library */
- #include "gxfixed.h"
- #include "gxmatrix.h"
- #include "gsstate.h"
-
- /* Composite components of the graphics state. */
- struct gx_transfer_map_s;
- typedef struct gx_transfer_s {
- struct gx_transfer_map_s *red;
- struct gx_transfer_map_s *green;
- struct gx_transfer_map_s *blue;
- struct gx_transfer_map_s *gray;
- } gx_transfer;
-
- /* Graphics state structure. See pp. 59-60 of the PostScript manual. */
- struct gs_state_s {
- gs_state *saved; /* previous state from gsave */
- const gs_memory_procs *memory_procs;
- /* Transformation: */
- gs_matrix_fixed ctm;
- #define ctm_only(pgs) *(gs_matrix *)&(pgs)->ctm
- gs_matrix ctm_inverse;
- int inverse_valid; /* true if ctm_inverse = ctm^-1 */
- /* Paths: */
- struct gx_path_s *path;
- struct gx_clip_path_s *clip_path;
- int clip_rule;
- /* Lines: */
- struct line_params_s *line_params;
- /* Halftone screen: */
- struct halftone_params_s *halftone;
- float (*ht_proc)(P2(floatp, floatp));
- gs_int_point ht_phase;
- gs_int_point phase_mod; /* negated phase mod tile size */
- struct gx_ht_cache_s *ht_cache; /* shared by all GCs */
- /* Color (device-independent): */
- struct gs_color_space_s *color_space;
- struct gs_client_color_s *ccolor;
- /* Color (device-dependent): */
- struct gs_cie_render_s *cie_render;
- int overprint;
- float (*black_generation)(P2(const gs_state *, floatp));
- float (*undercolor_removal)(P2(const gs_state *, floatp));
- gx_transfer transfer;
- /* Color caches: */
- struct gx_device_color_s *dev_color;
- struct gx_cie_joint_caches_s *cie_joint_caches;
- const struct gx_color_map_procs_s *cmap_procs;
- /* Font: */
- struct gs_font_s *font;
- gs_matrix_fixed char_tm; /* font matrix * ctm */
- #define char_tm_only(pgs) *(gs_matrix *)&(pgs)->char_tm
- int char_tm_valid; /* true if char_tm is valid */
- byte in_cachedevice; /* true after a setcachedevice */
- byte in_charpath; /* 0 if not in charpath, */
- /* 1 if false charpath, */
- /* 2 if true charpath */
- /* (see charpath_flag in */
- /* gs_show_enum_s) */
- gs_state *show_gstate; /* gstate when show was invoked */
- /* (so charpath can append to path) */
- /* Other stuff: */
- int level; /* incremented by 1 per gsave */
- float flatness;
- fixed fill_adjust; /* fattening for fill */
- int stroke_adjust;
- struct device_s *device;
- int device_is_shared; /* true if device is shared, */
- /* so don't deallocate at grestore */
- /* Client data: */
- char/*void*/ *client_data;
- gs_state_client_procs client_procs;
- };
-