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/* Copyright (C) 1996, 1997 Aladdin Enterprises. All rights reserved.
Unauthorized use, copying, and/or distribution prohibited.
*/
/* pxstate.h */
/* State definitions for PCL XL interpreter */
#ifndef pxstate_INCLUDED
# define pxstate_INCLUDED
#include "gsmemory.h"
#include "pxgstate.h"
#include "pjparse.h"
/* Define an abstract type for a font directory. */
#ifndef gs_font_dir_DEFINED
# define gs_font_dir_DEFINED
typedef struct gs_font_dir_s gs_font_dir;
#endif
/* Define an abstract type for a text enumerator. */
/* We only need this for the preallocated enumerator for the error page. */
#ifndef gs_show_enum_DEFINED
# define gs_show_enum_DEFINED
typedef struct gs_show_enum_s gs_show_enum;
#endif
/* Define an abstract type for an image enumerator. */
#ifndef px_image_enum_DEFINED
# define px_image_enum_DEFINED
typedef struct px_image_enum_s px_image_enum_t;
#endif
/* Define an abstract type for an pattern enumerator. */
#ifndef px_pattern_enum_DEFINED
# define px_pattern_enum_DEFINED
typedef struct px_pattern_enum_s px_pattern_enum_t;
#endif
/* Define the type of the PCL XL state. */
#ifndef px_state_DEFINED
# define px_state_DEFINED
typedef struct px_state_s px_state_t;
#endif
/* This structure captures the entire state of the PCL XL "virtual */
/* machine", except for graphics state parameters in the gs_state. */
struct px_state_s {
gs_memory_t *memory;
/* Hook back to client data, for callback procedures */
void *client_data;
gs_id known_fonts_base_id;
/* Session state */
pxeMeasure_t measure;
gs_point units_per_measure;
pxeErrorReport_t error_report;
/* Pattern dictionary */
px_dict_t session_pattern_dict;
/* Page state */
pxeOrientation_t orientation;
pxeMediaSource_t media_source;
bool duplex;
int copies;
pxeDuplexPageMode_t duplex_page_mode;
bool duplex_back_side;
pxeMediaDestination_t media_destination;
pxeMediaType_t media_type;
pxeMediaSize_t media_size;
int (*end_page)(P3(px_state_t *pxs, int num_copies, int flush));
/* Pattern dictionary */
px_dict_t page_pattern_dict;
/* Internal variables */
bool have_page; /* true if anything has been written on page */
/* Cached values */
gs_matrix initial_matrix;
/* Data source */
bool data_source_open;
bool data_source_big_endian;
/* Stream dictionary */
px_dict_t stream_dict;
/* Stream reading state */
gs_string stream_name;
struct sd2_ {
byte *data;
uint size;
} stream_def;
/* Font dictionary */
px_dict_t font_dict;
/* Font/character downloading state */
px_font_t *download_font;
int font_format;
/* Global structures */
gs_font_dir *font_dir;
px_font_t *error_page_font;
gs_show_enum *error_page_show_enum;
/* Graphics state */
gs_state *pgs; /* PostScript graphics state */
px_gstate_t *pxgs;
/* Image/pattern reading state */
px_image_enum_t *image_enum;
px_pattern_enum_t *pattern_enum;
/* Miscellaneous */
struct db_ {
byte *data;
uint size;
} download_bytes; /* font/character/halftone data */
gs_string download_string; /* ditto */
struct sp_ {
int x;
double y0, y1;
} scan_point; /* position when reading scan lines */
/* We put the warning table and error line buffer at the end */
/* so that the offsets of the scalars will stay small. */
#define px_max_error_line 120
char error_line[px_max_error_line + 1]; /* for errors with their own msg */
#define px_max_warning_message 500
uint warning_length;
char warnings[px_max_warning_message + 1];
/* ---------------- PJL state -------------------- */
pjl_parser_state *pjls;
};
#define private_st_px_state() /* in pxstate.c */\
gs_private_st_composite(st_px_state, px_state_t, "px_state",\
px_state_enum_ptrs, px_state_reloc_ptrs)
/* Enumerate the various kinds of pointers in a px_state_t. */
#define px_state_do_ptrs(m)\
m(0,client_data) m(1,stream_def.data)\
m(2,download_font) m(3,font_dir) m(4,error_page_font)\
m(5,error_page_show_enum) m(6,pgs) m(7,pxgs) m(8,image_enum)\
m(9,pattern_enum) m(10,download_bytes.data)
#define px_state_num_ptrs 11
#define px_state_do_string_ptrs(m)\
m(0,stream_name) m(1,download_string)
#define px_state_num_string_ptrs 2
#define px_state_do_dicts(m)\
m(0,session_pattern_dict) m(1,page_pattern_dict) m(2,stream_dict)\
m(4,font_dict)
#define px_state_num_dicts 4
/* Allocate a px_state_t. */
px_state_t *px_state_alloc(P1(gs_memory_t *));
/* Do one-time state initialization. */
void px_state_init(P2(px_state_t *, gs_state *));
/* Define the default end-of-page procedure. */
int px_default_end_page(P3(px_state_t *, int, int));
/* Clean up after an error or UEL. */
void px_state_cleanup(P1(px_state_t *));
/* Do one-time finalization. */
void px_state_finit(P1(px_state_t *));
#endif /* pxstate_INCLUDED */
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