diff options
author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/mdvi/include/mdvi.h |
Initial commit
Diffstat (limited to 'dviware/mdvi/include/mdvi.h')
-rw-r--r-- | dviware/mdvi/include/mdvi.h | 767 |
1 files changed, 767 insertions, 0 deletions
diff --git a/dviware/mdvi/include/mdvi.h b/dviware/mdvi/include/mdvi.h new file mode 100644 index 0000000000..8b16da9f5e --- /dev/null +++ b/dviware/mdvi/include/mdvi.h @@ -0,0 +1,767 @@ +/* + * Copyright (C) 2000, Matias Atria + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef _MDVI_DVI_H +#define _MDVI_DVI_H 1 + +#include <stdio.h> +#include <sys/types.h> +#include <math.h> + +#include "sysdeps.h" +#include "bitmap.h" +#include "common.h" +#include "defaults.h" +#include "dviopcodes.h" + +typedef struct _DviGlyph DviGlyph; +typedef struct _DviDevice DviDevice; +typedef struct _DviFontChar DviFontChar; +typedef struct _DviFontRef DviFontRef; +typedef struct _DviFontInfo DviFontInfo; +typedef struct _DviFont DviFont; +typedef struct _DviState DviState; +typedef struct _DviPaper DviPaper; +typedef struct _DviPaperSpec DviPaperSpec; +typedef struct _DviPageSpec *DviPageSpec; +typedef struct _DviParams DviParams; +typedef struct _DviBuffer DviBuffer; +typedef struct _DviContext DviContext; +typedef struct _DviRange DviRange; +typedef struct _DviAppConfig DviAppConfig; +typedef struct _DviColorPair DviColorPair; +typedef struct _DviHashBucket DviHashBucket; +typedef struct _DviHashTable DviHashTable; +typedef struct _DviConfValue DviConfValue; +typedef struct _DviSection DviSection; +typedef struct _DviConfig DviConfig; +typedef struct _TFMChar TFMChar; +typedef struct _TFMInfo TFMInfo; +typedef struct _DviFontSearch DviFontSearch; +/* this is an opaque type */ +typedef struct _DviFontClass DviFontClass; + +typedef void (*DviFreeFunc) __PROTO((void *)); +typedef void (*DviFree2Func) __PROTO((void *, void *)); + +typedef Ulong DviColor; + +#ifdef TRUE +#undef TRUE +#endif +#ifdef FALSE +#undef FALSE +#endif + +typedef enum { + FALSE = 0, + TRUE = 1 +} DviBool; + +/* + * information about a page: + * pagenum[0] = offset to BOP + * pagenum[1], ..., pagenum[10] = TeX \counters + */ +typedef long PageNum[11]; + +/* this structure contains the platform-specific information + * required to interpret a DVI file */ + +typedef void (*DviGlyphDraw) __PROTO((DviContext *context, + DviFontChar *glyph, + int x, int y)); + +typedef void (*DviRuleDraw) __PROTO((DviContext *context, + int x, int y, + Uint width, Uint height, int fill)); + +typedef int (*DviColorScale) __PROTO((void *device_data, + Ulong *pixels, + int npixels, + Ulong foreground, + Ulong background, + double gamma, + int density)); +typedef void *(*DviCreateImage) __PROTO((void *device_data, + Uint width, + Uint height, + Uint bpp)); +typedef void (*DviFreeImage) __PROTO((void *image)); +typedef void (*DviPutPixel) __PROTO((void *image, int x, int y, Ulong color)); +typedef void (*DviDevDestroy) __PROTO((void *data)); +typedef void (*DviRefresh) __PROTO((DviContext *dvi, void *device_data)); +typedef void (*DviSetColor) __PROTO((void *device_data, Ulong, Ulong)); + +struct _DviDevice { + DviGlyphDraw draw_glyph; + DviRuleDraw draw_rule; + DviColorScale alloc_colors; + DviCreateImage create_image; + DviFreeImage free_image; + DviPutPixel put_pixel; + DviDevDestroy dev_destroy; + DviRefresh refresh; + DviSetColor set_color; + void * device_data; +}; + +/* + * Hash tables + */ + +typedef Uchar *DviHashKey; +#define MDVI_KEY(x) ((DviHashKey)(x)) + +typedef Ulong (*DviHashFunc) __PROTO((DviHashKey key)); +typedef int (*DviHashComp) __PROTO((DviHashKey key1, DviHashKey key2)); +typedef void (*DviHashFree) __PROTO((DviHashKey key, void *data)); + + +struct _DviHashTable { + DviHashBucket **buckets; + int nbucks; + int nkeys; + DviHashFunc hash_func; + DviHashComp hash_comp; + DviHashFree hash_free; +}; +#define MDVI_EMPTY_HASH_TABLE {NULL, 0, 0, NULL, NULL, NULL} + +/* + * Fonts + */ + +#include "fontmap.h" + +struct _TFMChar { + Int32 present; + Int32 advance; /* advance */ + Int32 height; /* ascent */ + Int32 depth; /* descent */ + Int32 left; /* leftSideBearing */ + Int32 right; /* rightSideBearing */ +}; + +struct _TFMInfo { + int type; /* DviFontAFM, DviFontTFM, DviFontOFM */ + Uint32 checksum; + Uint32 design; + int loc; + int hic; + char coding[64]; + char family[64]; + TFMChar *chars; +}; + +struct _DviGlyph { + short x, y; /* origin */ + Uint w, h; /* dimensions */ + void *data; /* bitmap or XImage */ +}; + +typedef void (*DviFontShrinkFunc) + __PROTO((DviContext *, DviFont *, DviFontChar *, DviGlyph *)); +typedef int (*DviFontLoadFunc) __PROTO((DviParams *, DviFont *)); +typedef int (*DviFontGetGlyphFunc) __PROTO((DviParams *, DviFont *, int)); +typedef void (*DviFontFreeFunc) __PROTO((DviFont *)); +typedef void (*DviFontResetFunc) __PROTO((DviFont *)); +typedef char *(*DviFontLookupFunc) __PROTO((const char *, Ushort *, Ushort *)); +typedef int (*DviFontEncodeFunc) __PROTO((DviParams *, DviFont *, DviEncoding *)); + +struct _DviFontInfo { + char *name; /* human-readable format identifying string */ + int scalable; /* does it support scaling natively? */ + DviFontLoadFunc load; + DviFontGetGlyphFunc getglyph; + DviFontShrinkFunc shrink0; + DviFontShrinkFunc shrink1; + DviFontFreeFunc freedata; + DviFontResetFunc reset; + DviFontLookupFunc lookup; + int kpse_type; + void * private; +}; + +struct _DviFontChar { + Uint32 offset; + Int16 code; /* format-dependent, not used by MDVI */ + Int16 width; + Int16 height; + Int16 x; + Int16 y; + Int32 tfmwidth; + Ushort flags; +#ifdef __STRICT_ANSI__ + Ushort loaded; + Ushort missing; +#else + Ushort loaded : 1, + missing : 1; +#endif + Ulong fg; + Ulong bg; + BITMAP *glyph_data; + /* data for shrunk bitimaps */ + DviGlyph glyph; + DviGlyph shrunk; + DviGlyph grey; +}; + +struct _DviFontRef { + DviFontRef *next; + DviFont *ref; + Int32 fontid; +}; + +typedef enum { + DviFontAny = -1, + DviFontPK = 0, + DviFontGF = 1, + DviFontVF = 2, + DviFontTFM = 3, + DviFontT1 = 4, + DviFontTT = 5, + DviFontAFM = 6, + DviFontOFM = 7 +} DviFontType; + +struct _DviFontSearch { + int id; + Ushort hdpi; + Ushort vdpi; + Ushort actual_hdpi; + Ushort actual_vdpi; + const char *wanted_name; + const char *actual_name; + DviFontClass *curr; + DviFontInfo *info; +}; + +/* this is a kludge, I know */ +#define ISVIRTUAL(font) ((font)->search.info->getglyph == NULL) +#define SEARCH_DONE(s) ((s).id < 0) +#define SEARCH_INIT(s, name, h, v) do { \ + (s).id = 0; \ + (s).curr = NULL; \ + (s).hdpi = (h); \ + (s).vdpi = (v); \ + (s).wanted_name = (name); \ + (s).actual_name = NULL; \ + } while(0) + +struct _DviFont { + DviFont *next; + DviFont *prev; + int type; + Int32 checksum; + int hdpi; + int vdpi; + Int32 scale; + Int32 design; + FILE *in; + char *fontname; + char *filename; + int links; + int loc; + int hic; + Uint flags; + DviFontSearch search; + DviFontChar *chars; + DviFontRef *subfonts; + void *private; +}; + +/* + * Dvi context + */ + +typedef enum { + MDVI_PAPER_CLASS_ISO, + MDVI_PAPER_CLASS_US, + MDVI_PAPER_CLASS_ANY, + MDVI_PAPER_CLASS_CUSTOM +} DviPaperClass; + +struct _DviPaper { + DviPaperClass pclass; + const char *name; + double inches_wide; + double inches_tall; +}; + +struct _DviPaperSpec { + const char *name; + const char *width; + const char *height; +}; + +typedef enum { + MDVI_ORIENT_TBLR = 0, /* top to bottom, left to right */ + MDVI_ORIENT_TBRL = 1, /* top to bottom, right to left */ + MDVI_ORIENT_BTLR = 2, /* bottom to top, left to right */ + MDVI_ORIENT_BTRL = 3, /* bottom to top, right to left */ + MDVI_ORIENT_RP90 = 4, /* rotated +90 degrees (counter-clockwise) */ + MDVI_ORIENT_RM90 = 5, /* rotated -90 degrees (clockwise) */ + MDVI_ORIENT_IRP90 = 6, /* flip horizontally, then rotate by +90 */ + MDVI_ORIENT_IRM90 = 7 /* rotate by -90, then flip horizontally */ +} DviOrientation; + +typedef enum { + MDVI_PAGE_SORT_UP, /* up, using \counter0 */ + MDVI_PAGE_SORT_DOWN, /* down, using \counter0 */ + MDVI_PAGE_SORT_RANDOM, /* randomly */ + MDVI_PAGE_SORT_DVI_UP, /* up, by location in DVI file */ + MDVI_PAGE_SORT_DVI_DOWN, /* down, by location in DVI file */ + MDVI_PAGE_SORT_NONE /* don't sort */ +} DviPageSort; + +struct _DviParams { + double mag; /* magnification */ + double conv; /* horizontal DVI -> pixel */ + double vconv; /* vertical DVI -> pixel */ + double tfm_conv; /* TFM -> DVI */ + double gamma; /* gamma correction factor */ + Uint dpi; /* horizontal resolution */ + Uint vdpi; /* vertical resolution */ + int hshrink; /* horizontal shrinking factor */ + int vshrink; /* vertical shrinking factor */ + Uint density; /* pixel density */ + Uint flags; /* flags (see MDVI_PARAM macros) */ + int hdrift; /* max. horizontal drift */ + int vdrift; /* max. vertical drift */ + int vsmallsp; /* small vertical space */ + int thinsp; /* small horizontal space */ + int layer; /* visible layer (for layered DVI files) */ + Ulong fg; /* foreground color */ + Ulong bg; /* background color */ + DviOrientation orientation; /* page orientation */ + int base_x; + int base_y; + Ulong *pixels; /* colors used for antialiasing */ + int npixels; /* number of entries in `pixels' */ +}; + +typedef enum { + MDVI_PARAM_LAST = 0, + MDVI_SET_DPI = 1, + MDVI_SET_XDPI = 2, + MDVI_SET_YDPI = 3, + MDVI_SET_SHRINK = 4, + MDVI_SET_XSHRINK = 5, + MDVI_SET_YSHRINK = 6, + MDVI_SET_GAMMA = 7, + MDVI_SET_DENSITY = 8, + MDVI_SET_MAGNIFICATION = 9, + MDVI_SET_DRIFT = 10, + MDVI_SET_HDRIFT = 11, + MDVI_SET_VDRIFT = 12, + MDVI_SET_ORIENTATION = 13, + MDVI_SET_FOREGROUND = 14, + MDVI_SET_BACKGROUND = 15 +} DviParamCode; + +struct _DviBuffer { + Uchar *data; + size_t size; /* allocated size */ + size_t length; /* amount of data buffered */ + size_t pos; /* current position in buffer */ + int frozen; /* can we free this data? */ +}; + +/* DVI registers */ +struct _DviState { + int h; + int v; + int hh; + int vv; + int w; + int x; + int y; + int z; +}; + +struct _DviColorPair { + Ulong fg; + Ulong bg; +}; + +struct _DviContext { + char *filename; /* name of the DVI file */ + FILE *in; /* from here we read */ + char *fileid; /* from preamble */ + char *fallback_font; /* fallback font to use if one is not found */ + int npages; /* number of pages */ + int currpage; /* currrent page (0 based) */ + int depth; /* recursion depth */ + DviBuffer buffer; /* input buffer */ + DviParams params; /* parameters */ + DviPaper paper; /* paper type */ + Int32 num; /* numerator */ + Int32 den; /* denominator */ + DviFontRef *fonts; /* fonts used in this file */ + DviFontRef **fontmap; /* for faster id lookups */ + DviFontRef *currfont; /* current font */ + int nfonts; /* # of fonts used in this job */ + Int32 dvimag; /* original magnification */ + double dviconv; /* unshrunk scaling factor */ + double dvivconv; /* unshrunk scaling factor (vertical) */ + int dvi_page_w; /* unscaled page width */ + int dvi_page_h; /* unscaled page height */ + Ulong modtime; /* file modification time */ + PageNum *pagemap; /* page table */ + DviState pos; /* registers */ + DviPageSpec *pagesel; /* page selection data */ + int curr_layer; /* current layer */ + DviState *stack; /* DVI stack */ + int stacksize; /* stack depth */ + int stacktop; /* stack pointer */ + DviDevice device; /* device-specific routines */ + Ulong curr_fg; /* rendering color */ + Ulong curr_bg; + DviColorPair *color_stack; + DviHashTable assoc; + int color_top; + int color_size; + DviFontRef *(*findref) __PROTO((DviContext *, Int32)); + void *user_data; /* client data attached to this context */ +}; + +typedef enum { + MDVI_RANGE_BOUNDED, /* range is finite */ + MDVI_RANGE_LOWER, /* range has a lower bound */ + MDVI_RANGE_UPPER, /* range has an upper bound */ + MDVI_RANGE_UNBOUNDED /* range has no bounds at all */ +} DviRangeType; + +struct _DviRange { + DviRangeType type; /* one of the above */ + int from; /* lower bound */ + int to; /* upper bound */ + int step; /* step */ +}; + +struct _DviAppConfig { + char *program; + char *fallback_font; + char *fgcolor; + char *bgcolor; + char *mfmode; + char *hrule_units; + char *vrule_units; + char *hmargin; + char *vmargin; + char *page_ranges; + char *fontspec; + char *fontunspec; + DviPaper paper; + DviPageSort page_sort; + DviParams params; + int first_page; + int use_tex_page; +}; + +/* in-memory configuration files */ +struct _DviConfValue { + DviConfValue *next; + char *key; + char *value; +}; + +struct _DviSection { + DviSection *next; + char *name; + long offset; + DviConfValue *keys; + DviHashTable table; +}; + +struct _DviConfig { + char *filename; + char *core; + DviSection *sections; + DviHashTable sectable; +}; + + + +typedef void (*DviSpecialHandler) + __PROTO((DviContext *dvi, const char *prefix, const char *arg)); + +#define RANGE_HAS_LOWER(x) \ + ((x) == MDVI_RANGE_BOUNDED || (x) == MDVI_RANGE_LOWER) +#define RANGE_HAS_UPPER(x) \ + ((x) == MDVI_RANGE_BOUNDED || (x) == MDVI_RANGE_UPPER) + +/* + * Macros and prototypes + */ + +#define MDVI_PARAM_ANTIALIASED 1 +#define MDVI_PARAM_MONO 2 +#define MDVI_PARAM_CHARBOXES 4 +#define MDVI_PARAM_SHOWUNDEF 8 +#define MDVI_PARAM_DELAYFONTS 16 + +/* + * The FALLBACK priority class is reserved for font formats that + * contain no glyph information and are to be used as a last + * resort (e.g. TFM, AFM) + */ +#define MDVI_FONTPRIO_FALLBACK -3 +#define MDVI_FONTPRIO_LOWEST -2 +#define MDVI_FONTPRIO_LOW -1 +#define MDVI_FONTPRIO_NORMAL 0 +#define MDVI_FONTPRIO_HIGH 1 +#define MDVI_FONTPRIO_HIGHEST 2 + +#define MDVI_FONT_ENCODED (1 << 0) + +#define MDVI_GLYPH_EMPTY ((void *)1) +/* does the glyph have a non-empty bitmap/image? */ +#define MDVI_GLYPH_NONEMPTY(x) ((x) && (x) != MDVI_GLYPH_EMPTY) +/* has the glyph been loaded from disk? */ +#define MDVI_GLYPH_UNSET(x) ((x) == NULL) +/* do we have only a bounding box for this glyph? */ +#define MDVI_GLYPH_ISEMPTY(x) ((x) == MDVI_GLYPH_EMPTY) + +#define MDVI_ENABLED(d,x) ((d)->params.flags & (x)) +#define MDVI_DISABLED(d,x) !MDVI_ENABLED((d), (x)) + +#define MDVI_LASTPAGE(d) ((d)->npages - 1) +#define MDVI_NPAGES(d) (d)->npages +#define MDVI_VALIDPAGE(d,p) ((p) >= 0 && (p) <= MDVI_LASTPAGE(d)) +#define MDVI_FLAGS(d) (d)->params.flags +#define MDVI_SHRINK_FROM_DPI(d) Max(1, (d) / 75) +#define MDVI_CURRFG(d) (d)->curr_fg +#define MDVI_CURRBG(d) (d)->curr_bg + +#define pixel_round(d,v) (int)((d)->params.conv * (v) + 0.5) +#define vpixel_round(d,v) (int)((d)->params.vconv * (v) + 0.5) +#define rule_round(d,v) (int)((d)->params.conv * (v) + 0.99999) /*9999999)*/ +#define vrule_round(d,v) (int)((d)->params.vconv * (v) + 0.99999) + +extern int mdvi_reload __PROTO((DviContext *, DviParams *)); +extern void mdvi_setpage __PROTO((DviContext *, int)); +extern int mdvi_dopage __PROTO((DviContext *, int)); +extern void mdvi_shrink_glyph __PROTO((DviContext *, DviFont *, DviFontChar *, DviGlyph *)); +extern void mdvi_shrink_box __PROTO((DviContext *, DviFont *, DviFontChar *, DviGlyph *)); +extern void mdvi_shrink_glyph_grey __PROTO((DviContext *, DviFont *, DviFontChar *, DviGlyph *)); +extern int mdvi_find_tex_page __PROTO((DviContext *, int)); +extern int mdvi_configure __PROTO((DviContext *, DviParamCode, ...)); + +extern int get_tfm_chars __PROTO((DviParams *, DviFont *, TFMInfo *, int)); +extern int tfm_load_file __PROTO((const char *, TFMInfo *)); +extern int afm_load_file __PROTO((const char *, TFMInfo *)); +extern TFMInfo *get_font_metrics __PROTO((const char *, int, const char *)); +extern char *lookup_font_metrics __PROTO((const char *, int *)); +extern void free_font_metrics __PROTO((TFMInfo *)); +extern void flush_font_metrics __PROTO((void)); + +#define get_metrics(name) get_font_metrics((name), DviFontAny, NULL) + +extern void mdvi_sort_pages __PROTO((DviContext *, DviPageSort)); +extern int mdvi_get_paper_size __PROTO((const char *, DviPaper *)); +extern DviPaperSpec* mdvi_get_paper_specs __PROTO((DviPaperClass)); +extern void mdvi_free_paper_specs __PROTO((DviPaperSpec *)); + +/* Associations */ +extern int mdvi_assoc_put + __PROTO((DviContext *, char *, void *, DviFree2Func)); +extern void * mdvi_assoc_get __PROTO((DviContext *, char *)); +extern void * mdvi_assoc_del __PROTO((DviContext *, char *)); +extern void mdvi_assoc_free __PROTO((DviContext *, char *)); +extern void mdvi_assoc_flush __PROTO((DviContext *)); + +extern int mdvi_check_config __PROTO((DviAppConfig *)); +extern void mdvi_init_kpathsea __PROTO((const char *, const char *, const char *, int)); +extern DviAppConfig *mdvi_init_app __PROTO((const char *, const char *)); + +extern DviContext* mdvi_init_context __PROTO((DviParams *, DviPageSpec *, const char *)); +extern void mdvi_destroy_context __PROTO((DviContext *)); + +/* helper macros that call mdvi_configure() */ +#define mdvi_config_one(d,x,y) mdvi_configure((d), (x), (y), MDVI_PARAM_LAST) +#define mdvi_set_dpi(d,x) mdvi_config_one((d), MDVI_SET_DPI, (x)) +#define mdvi_set_xdpi(d,x) mdvi_config_one((d), MDVI_SET_XDPI, (x)) +#define mdvi_set_ydpi(d,x) mdvi_config_one((d), MDVI_SET_YDPI, (x)) +#define mdvi_set_hshrink(d,h) mdvi_config_one((d), MDVI_SET_XSHRINK, (h)) +#define mdvi_set_vshrink(d,h) mdvi_config_one((d), MDVI_SET_YSHRINK, (h)) +#define mdvi_set_gamma(d,g) mdvi_config_one((d), MDVI_SET_GAMMA, (g)) +#define mdvi_set_density(d,x) mdvi_config_one((d), MDVI_SET_DENSITY, (x)) +#define mdvi_set_drift(d,x) mdvi_config_one((d), MDVI_SET_DRIFT, (x)) +#define mdvi_set_hdrift(d,h) mdvi_config_one((d), MDVI_SET_HDRIFT, (h)) +#define mdvi_set_vdrift(d,v) mdvi_config_one((d), MDVI_SET_VDRIFT, (v)) +#define mdvi_set_mag(d,m) \ + mdvi_config_one((d), MDVI_SET_MAGNIFICATION, (m)) +#define mdvi_set_foreground(d,x) \ + mdvi_config_one((d), MDVI_SET_FOREGROUND, (x)) +#define mdvi_set_background(d,x) \ + mdvi_config_one((d), MDVI_SET_BACKGROUND, (x)) +#define mdvi_set_orientation(d,x) \ + mdvi_config_one((d), MDVI_SET_ORIENTATION, (x)) +#define mdvi_set_shrink(d,h,v) \ + mdvi_configure((d), MDVI_SET_XSHRINK, (h), \ + MDVI_SET_YSHRINK, (v), MDVI_PARAM_LAST) + +extern DviRange* mdvi_parse_range __PROTO((const char *, DviRange *, int *, char **)); +extern DviPageSpec* mdvi_parse_page_spec __PROTO((const char *)); +extern void mdvi_free_page_spec __PROTO((DviPageSpec *)); +extern int mdvi_in_range __PROTO((DviRange *, int, int)); +extern int mdvi_range_length __PROTO((DviRange *, int)); +extern int mdvi_page_selected __PROTO((DviPageSpec *, PageNum, int)); + +/* Color support */ +extern void mdvi_set_color __PROTO((DviContext *, Ulong, Ulong)); +extern void mdvi_push_color __PROTO((DviContext *, Ulong, Ulong)); +extern void mdvi_pop_color __PROTO((DviContext *)); +extern void mdvi_reset_color __PROTO((DviContext *)); + +/* Specials */ +extern int mdvi_register_special __PROTO(( + const char *label, + const char *prefix, + const char *regex, + DviSpecialHandler handler, + int replace)); +extern int mdvi_unregister_special __PROTO((const char *prefix)); +extern int mdvi_do_special __PROTO((DviContext *dvi, char *dvi_special)); +extern void mdvi_flush_specials __PROTO((void)); + +/* Fonts */ + +#define MDVI_FONTSEL_BITMAP (1 << 0) +#define MDVI_FONTSEL_GREY (1 << 1) +#define MDVI_FONTSEL_GLYPH (1 << 2) + +#define FONTCHAR(font, code) \ + (((code) < font->loc || (code) > font->hic || !(font)->chars) ? \ + NULL : &font->chars[(code) - (font)->loc]) +#define FONT_GLYPH_COUNT(font) ((font)->hic - (font)->loc + 1) + +#define glyph_present(x) ((x) && (x)->offset) + +/* create a reference to a font */ +extern DviFontRef *font_reference __PROTO((DviParams *params, + Int32 dvi_id, + const char *font_name, + Int32 checksum, + int xdpi, + int ydpi, + Int32 scale_factor)); + +/* drop a reference to a font */ +extern void font_drop_one __PROTO((DviFontRef *)); + +/* drop a chain of references */ +extern void font_drop_chain __PROTO((DviFontRef *)); + +/* destroy selected information for a glyph */ +extern void font_reset_one_glyph __PROTO((DviDevice *, DviFontChar *, int)); + +/* destroy selected information for all glyphs in a font */ +extern void font_reset_font_glyphs __PROTO((DviDevice *, DviFont *, int)); + +/* same for a chain of font references */ +extern void font_reset_chain_glyphs __PROTO((DviDevice *, DviFontRef *, int)); + +extern void font_finish_definitions __PROTO((DviContext *)); + +/* lookup an id # in a reference chain */ +extern DviFontRef* font_find_flat __PROTO((DviContext *, Int32)); +extern DviFontRef* font_find_mapped __PROTO((DviContext *, Int32)); + +/* called to reopen (or rewind) a font file */ +extern int font_reopen __PROTO((DviFont *)); + +/* reads a glyph from a font, and makes all necessary transformations */ +extern DviFontChar* font_get_glyph __PROTO((DviContext *, DviFont *, int)); + +/* transform a glyph according to the given orientation */ +extern void font_transform_glyph __PROTO((DviOrientation, DviGlyph *)); + +/* destroy all fonts that are not being used, returns number of fonts freed */ +extern int font_free_unused __PROTO((DviDevice *)); + +#define font_free_glyph(dev, font, code) \ + font_reset_one_glyph((dev), \ + FONTCHAR((font), (code)), MDVI_FONTSEL_GLYPH) + +extern int mdvi_encode_font __PROTO((DviParams *, DviFont *)); + +/* Hash tables */ +#define MDVI_HASH_REPLACE 0 +#define MDVI_HASH_UNIQUE 1 +#define MDVI_HASH_UNCHECKED 2 + +extern void mdvi_hash_init __PROTO((DviHashTable *)); +extern void mdvi_hash_create __PROTO((DviHashTable *, int)); +extern int mdvi_hash_add __PROTO((DviHashTable *, DviHashKey, void *, int)); +extern int mdvi_hash_destroy_key __PROTO((DviHashTable *, DviHashKey)); +extern void mdvi_hash_reset __PROTO((DviHashTable *, int)); +extern void *mdvi_hash_lookup __PROTO((DviHashTable *, DviHashKey)); +extern void *mdvi_hash_remove __PROTO((DviHashTable *, DviHashKey)); +extern void *mdvi_hash_remove_ptr __PROTO((DviHashTable *, DviHashKey)); + +#define mdvi_hash_flush(h) mdvi_hash_reset((h), 1) +#define mdvi_hash_destroy(h) mdvi_hash_reset((h), 0) + +/* font lookup functions */ +extern int mdvi_register_font_type __PROTO((DviFontInfo *, int)); +extern char **mdvi_list_font_class __PROTO((int)); +extern int mdvi_get_font_classes __PROTO((void)); +extern int mdvi_unregister_font_type __PROTO((const char *, int)); +extern char *mdvi_lookup_font __PROTO((DviFontSearch *)); +extern DviFont *mdvi_add_font __PROTO((const char *, Int32, int, int, Int32)); +extern int mdvi_font_retry __PROTO((DviParams *, DviFont *)); + +/* configuration files */ +extern DviConfig *mdvi_read_config __PROTO((const char *)); +extern DviSection *mdvi_find_section __PROTO((DviConfig *, const char *)); +extern int mdvi_destroy_section __PROTO((DviConfig *, DviSection *)); +extern void mdvi_destroy_config __PROTO((DviConfig *)); + +/* Miscellaneous */ + +extern DviOrientation mdvi_get_orientation __PROTO((const char *)); +extern int mdvi_get_integer __PROTO((const char *, long *)); +extern int mdvi_get_float __PROTO((const char *, double *)); +extern long mdvi_get_integer_env __PROTO((const char *, long)); +extern double mdvi_get_float_env __PROTO((const char *, double)); +extern char* mdvi_get_string_env __PROTO((const char *, char *)); +extern void mdvi_get_params_env __PROTO((DviParams *)); + +extern int mdvi_set_logfile __PROTO((const char *)); +extern int mdvi_set_logstream __PROTO((FILE *)); +extern int mdvi_set_loglevel __PROTO((int)); + +#define mdvi_stop_logging(x) mdvi_set_logstream(NULL) + +extern int mdvi_get_pagesort __PROTO((const char *)); +extern int mdvi_get_debugmask __PROTO((const char *)); +extern DviOrientation mdvi_getorient __PROTO((const char *)); +extern int mdvi_getint __PROTO((const char *, long *)); +extern int mdvi_getfloat __PROTO((const char *, double *)); +extern int mdvi_getenv_int __PROTO((const char *, int)); +extern double mdvi_getenv_float __PROTO((const char *, double)); +extern char* mdvi_getenv_string __PROTO((const char *, char *)); + +/* this will check the environment and then `texmf.cnf' for + * the given name changed to lowercase, and `_' changed to `-' */ +extern char* mdvi_getenv __PROTO((const char *)); + +#endif /* _MDVI_DVI_H */ |