1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526
|
/* dvipng.h */
/************************************************************************
Part of the dvipng distribution
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this program. If not, see
<http://www.gnu.org/licenses/>.
Copyright (C) 2002-2015 Jan-ke Larsson
************************************************************************/
#ifndef DVIPNG_H
#define DVIPNG_H
#include "config.h"
#define STRSIZE 255 /* stringsize for file specifications */
#define FIRSTFNTCHAR 0
#define LASTFNTCHAR 255
#define NFNTCHARS LASTFNTCHAR+1
#define STACK_SIZE 100 /* DVI-stack size */
#define DEFAULT_GAMMA 1.0
/* Name of the program which is called to generate missing pk files */
#define MAKETEXPK "mktexpk"
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#else /* HAVE_INTTYPES_H */
# ifndef __sgi
/* IRIX has the following types typedef'd in sys/types.h already,
* i.e., _old_ IRIX systems; newer ones have a working inttypes.h */
typedef signed char int8_t;
typedef short int16_t;
typedef int int32_t;
#endif /* ! __sgi */
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
typedef long long int64_t;
typedef unsigned long long uint64_t;
#endif /* HAVE_INTTYPES_H */
#ifndef INT32_MIN
#define INT32_MIN (-2147483647-1)
#endif
#ifndef INT32_MAX
#define INT32_MAX (2147483647)
#endif
#include <gd.h>
#ifdef HAVE_KPATHSEA_KPATHSEA_H
# include <kpathsea/kpathsea.h>
#else
# error: kpathsea/kpathsea.h is missing from your system
#endif
#ifdef HAVE_FT2
#include <ft2build.h>
#include FT_FREETYPE_H
#endif
#ifdef HAVE_STDBOOL_H
# include <stdbool.h>
#else
# ifdef HAVE_KPATHSEA_KPATHSEA_H
/* boolean is an enum type from kpathsea/types.h loaded in
kpathsea/kpathsea.h, use it as fallback */
# define bool boolean
# else
typedef int bool;
# define true (bool) 1
# define false (bool) 0
# endif
#endif
#ifndef HAVE_VPRINTF
# ifdef HAVE_DOPRNT
# define vfprintf(stream, message, args) _doprnt(message, args, stream)
# else
# error: vfprintf AND _doprnt are missing!!!
/* If we have neither, should fall back to fprintf with fixed args. */
# endif
#endif
/*************************************************************/
/************************* protos.h ************************/
/*************************************************************/
typedef int pixels;
typedef int32_t subpixels;
typedef int32_t dviunits;
#define MM_TO_PXL(x) (int)(((x)*resolution*10)/254)
#define PT_TO_PXL(x) (int)((int32_t)((x)*resolution*100l)/7224)
#define PT_TO_DVI(x) (int32_t)((x)*65536l)
/*#define PIXROUND(x,c) ((((double)x+(double)(c>>1))/(double)c)+0.5)*/
/*#define PIXROUND(x,c) (((x)+c)/(c))*/
/*#define PIXROUND(x,c) ((x+c-1)/(c))*/
/*#define PIXROUND(x,c) ((x)/(c))*/
/* integer round to the nearest number, not towards zero */
#define PIXROUND(num,den) ((num)>0 ? ((num)+(den)/2)/(den) : -(((den)/2-(num))/(den)))
/********************************************************/
/*********************** dvi.h ************************/
/********************************************************/
#define DVI_TYPE 0
struct dvi_data { /* dvi entry */
int type; /* This is a DVI */
struct dvi_data *next;
uint32_t num, den, mag; /* PRE command parameters */
int32_t conv; /* computed from num and den */
/* divide dvi units (sp) with conv to get mf device resolution */
/* divide further with shrinkfactor to get true resolution */
char * name; /* full name of DVI file */
char * outname; /* output filename (basename) */
FILE * filep; /* file pointer */
time_t mtime; /* modification time */
struct font_num *fontnump; /* DVI font numbering */
struct page_list *pagelistp; /* DVI page list */
#define DVI_PREVIEW_LATEX_TIGHTPAGE 1
#define DVI_PREVIEW_BOP_HOOK (1<<1)
uint32_t flags; /* Preview-latex flags */
};
#define PAGE_POST INT32_MAX
#define PAGE_LASTPAGE INT32_MAX-1
#define PAGE_MAXPAGE INT32_MAX-2 /* assume no pages out of this range */
#define PAGE_FIRSTPAGE INT32_MIN
#define PAGE_MINPAGE INT32_MIN+1 /* assume no pages out of this range */
struct dvi_color {
int red,green,blue;
};
struct page_list {
struct page_list* next;
int offset; /* file offset to BOP */
int32_t count[11]; /* 10 dvi counters + absolute pagenum in file */
int csp; /* color stack pointer at BOP */
struct dvi_color cstack[2]; /* color stack at BOP, may be longer */
};
struct dvi_data* DVIOpen(char*,char*);
void DVIClose(struct dvi_data*);
bool DVIReOpen(struct dvi_data*);
struct page_list*FindPage(struct dvi_data*, int32_t, bool);
struct page_list*NextPage(struct dvi_data*, struct page_list*);
struct page_list*PrevPage(struct dvi_data*, struct page_list*);
int SeekPage(struct dvi_data*, struct page_list*);
bool DVIFollowToggle(void);
unsigned char* DVIGetCommand(struct dvi_data*);
bool DVIIsNextPSSpecial(struct dvi_data*);
uint32_t CommandLength(unsigned char*);
void ClearPSHeaders(void);
/********************************************************/
/********************** misc.h ************************/
/********************************************************/
struct filemmap {
#ifdef WIN32
HANDLE hFile;
HANDLE hMap;
#else /* WIN32 */
int fd;
#endif /* WIN32 */
char* data;
size_t size;
};
bool DecodeArgs(int, char *[]);
void DecodeString(char *);
bool MmapFile (char *filename,struct filemmap *fmmap);
void UnMmapFile(struct filemmap* fmmap);
void Message(int, const char *fmt, ...);
void Warning(const char *fmt, ...);
void Fatal(const char *fmt, ...);
int32_t SNumRead(unsigned char*, register int);
uint32_t UNumRead(unsigned char*, register int);
bool MmapFile (char *filename,struct filemmap *fmmap);
void UnMmapFile(struct filemmap* fmmap);
/********************************************************/
/*********************** font.h ***********************/
/********************************************************/
struct encoding {
struct encoding* next;
char* name;
char* charname[257];
};
struct subfont {
struct subfont* next;
char* name;
char* infix;
int encoding;
int32_t charindex[256];
};
#ifdef HAVE_FT2
struct psfontmap {
struct psfontmap *next;
char *line,*psfile,*tfmname,*encname,*end;
struct encoding* encoding;
FT_Matrix* ft_transformp;
FT_Matrix ft_transform;
struct subfont* subfont;
};
#endif
#define FONT_TYPE_PK 1
#define FONT_TYPE_VF 2
#define FONT_TYPE_FT 3
struct char_entry { /* PK/FT Glyph/VF Macro */
dviunits tfmw; /* TFM width */
unsigned char *data; /* glyph data, either pixel data
* (0=transp, 255=max ink) or VF macro */
uint32_t length; /* Length of PK data or VF macro */
/* Only used in pixel fonts */
pixels w,h; /* width and height in pixels */
subpixels xOffset, yOffset; /* x offset and y offset in subpixels */
/* Only used in PK fonts */
unsigned char *pkdata; /* Points to beginning of PK data */
unsigned char flag_byte; /* PK flagbyte */
};
struct font_entry { /* font entry */
int type; /* PK/VF/Type1 ... */
struct font_entry *next;
uint32_t c, s, d;
uint8_t a, l;
char n[STRSIZE]; /* FNT_DEF command parameters */
int dpi; /* computed from s and d */
char * name; /* full name of PK/VF file */
struct filemmap fmmap; /* file memory map */
uint32_t magnification; /* magnification read from font file */
uint32_t designsize; /* design size read from font file */
void * chr[NFNTCHARS]; /* character information */
#ifdef HAVE_FT2
FT_Face face; /* Freetype2 face */
struct psfontmap* psfontmap; /* Font transformation */
#endif
struct font_num *vffontnump; /* VF local font numbering */
int32_t defaultfont; /* VF default font number */
};
struct font_num { /* Font number. Different for VF/DVI, and several
font_num can point to one font_entry */
struct font_num *next;
int32_t k;
struct font_entry *fontp;
};
void CheckChecksum(uint32_t, uint32_t, const char*);
void InitPK (struct font_entry *newfontp);
void DonePK(struct font_entry *oldfontp);
void InitVF (struct font_entry *newfontp);
void DoneVF(struct font_entry *oldfontp);
void FontDef(unsigned char*, void* /* dvi/vf */);
void ClearFonts(void);
void SetFntNum(int32_t, void* /* dvi/vf */);
void FreeFontNumP(struct font_num *hfontnump);
#ifdef HAVE_FT2
char* copyword(char* orig);
struct psfontmap *NewPSFont(struct psfontmap* copyfrom);
void InitPSFontMap(void);
void ClearPSFontMap(void);
struct psfontmap* FindPSFontMap(char*);
struct encoding* FindEncoding(char*);
void ClearEncoding(void);
bool ReadTFM(struct font_entry *, char*);
bool InitFT(struct font_entry *);
void DoneFT(struct font_entry *tfontp);
void LoadFT(int32_t, struct char_entry *);
struct psfontmap* FindSubFont(struct psfontmap* entry, char* fontname);
void ClearSubfont(void);
#endif
/********************************************************/
/********************* ppagelist.h ********************/
/********************************************************/
bool ParsePages(const char*);
void FirstPage(int32_t,bool);
void LastPage(int32_t,bool);
void ClearPpList(void);
void Reverse(bool);
struct page_list* NextPPage(void* /* dvi */, struct page_list*);
#ifdef MAIN
#define EXTERN
#define INIT(x) =x
#else
#define EXTERN extern
#define INIT(x)
#endif
/********************************************************/
/********************** draw.h ************************/
/********************************************************/
#include "commands.h"
void CreateImage(pixels width, pixels height);
void DestroyImage(void);
void DrawCommand(unsigned char*, void* /* dvi/vf */);
void DrawPages(void);
void WriteImage(char*, int);
void LoadPK(int32_t, register struct char_entry *);
int32_t SetChar(int32_t);
dviunits SetGlyph(struct char_entry *ptr, int32_t hh,int32_t vv);
void Gamma(double gamma);
int32_t SetVF(struct char_entry *ptr);
int32_t SetRule(int32_t, int32_t, int32_t, int32_t);
void SetSpecial(char *, char *, int32_t, int32_t);
void BeginVFMacro(struct font_entry*);
void EndVFMacro(void);
/**************************************************/
void handlepapersize(const char*,int32_t*,int32_t*);
void stringrgb(const char* colorstring,int *r,int *g,int *b);
void background(const char *);
void initcolor(void);
void popcolor(void);
void pushcolor(const char *);
void resetcolorstack(const char *);
void StoreColorStack(struct page_list *tpagep);
void ReadColorStack(struct page_list *tpagep);
void StoreBackgroundColor(struct page_list *tpagep);
void ClearColorNames(void);
void InitXColorPrologue(const char* prologuename);
/**********************************************************************/
/************************* Global Variables *************************/
/**********************************************************************/
#ifdef MAKETEXPK
#ifdef HAVE_LIBKPATHSEA
EXTERN bool makeTexPK INIT(MAKE_TEX_PK_BY_DEFAULT);
#else
EXTERN bool makeTexPK INIT(_TRUE);
#endif
#endif
EXTERN uint32_t usermag INIT(0); /* user specified magstep */
EXTERN struct font_entry *hfontptr INIT(NULL); /* font list pointer */
EXTERN struct internal_state {
struct font_entry* currentfont;
} current_state;
#define BE_NONQUIET 1
#define BE_VERBOSE (1<<1)
#define PARSE_STDIN (1<<2)
#define EXPAND_BBOX (1<<3)
#define TIGHT_BBOX (1<<4)
#define FORCE_TRUECOLOR (1<<5)
#define USE_FREETYPE (1<<6)
#define REPORT_HEIGHT (1<<7)
#define REPORT_DEPTH (1<<8)
#define REPORT_WIDTH (1<<9)
#define DVI_PAGENUM (1<<10)
#define MODE_PICKY (1<<11)
#define GIF_OUTPUT (1<<12)
#define MODE_STRICT (1<<13)
#define NO_GHOSTSCRIPT (1<<14)
#define NO_GSSAFER (1<<15)
#define BG_TRANSPARENT (1<<16)
#define BG_TRANSPARENT_ALPHA (1<<17)
#define FORCE_PALETTE (1<<18)
#define NO_RAW_PS (1<<19)
EXTERN uint32_t option_flags INIT(BE_NONQUIET | USE_FREETYPE);
#define PAGE_GAVE_WARN 1
#define PAGE_PREVIEW_BOP (1<<1)
#define PAGE_TRUECOLOR (1<<2)
EXTERN uint32_t page_flags INIT(0);
#ifdef DEBUG
EXTERN unsigned int debug INIT(0);
#define DEBUG_PRINT(a,b) if (debug & a) { printf b; fflush(stdout); }
#define DEBUG_DVI 1
#define DEBUG_VF (1<<1)
#define DEBUG_PK (1<<2)
#define DEBUG_TFM (1<<3)
#define DEBUG_GLYPH (1<<4)
#define DEBUG_FT (1<<5)
#define DEBUG_ENC (1<<6)
#define DEBUG_COLOR (1<<7)
#define DEBUG_GS (1<<8)
#define LASTDEBUG DEBUG_GS
#define DEBUG_DEFAULT DEBUG_DVI
#else
#define DEBUG_PRINT(a,b)
#endif
/************************timing stuff*********************/
#ifdef TIMING
# ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
# else
# ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
# endif
EXTERN double timer INIT(0);
EXTERN double my_tic,my_toc INIT(0);
EXTERN int ndone INIT(0); /* number of pages converted */
# ifdef HAVE_GETTIMEOFDAY
EXTERN struct timeval Tp;
# define TIC { gettimeofday(&Tp, NULL); \
my_tic= Tp.tv_sec + Tp.tv_usec/1000000.0;}
# define TOC { gettimeofday(&Tp, NULL); \
my_toc += Tp.tv_sec + Tp.tv_usec/1000000.0 - my_tic;}
# else
# ifdef HAVE_FTIME
EXTERN struct timeb timebuffer;
# define TIC() { ftime(&timebuffer); \
my_tic= timebuffer.time + timebuffer.millitm/1000.0;
# define TOC() { ftime(&timebuffer); \
my_toc += timebuffer.time + timebuffer.millitm/1000.0 - my_tic;}
# else
# define TIC()
# define TOC()
# endif
# endif
#endif /* TIMING */
EXTERN char* user_mfmode INIT(NULL);
EXTERN int user_bdpi INIT(0);
EXTERN int dpi INIT(100);
#ifdef HAVE_GDIMAGEPNGEX
EXTERN int compression INIT(1);
#endif
#undef min
#undef max
# define max(x,y) if ((y)>(x)) x = y
# define min(x,y) if ((y)<(x)) x = y
/* These are in pixels*/
EXTERN int x_min INIT(0);
EXTERN int y_min INIT(0);
EXTERN int x_max INIT(0);
EXTERN int y_max INIT(0);
/* Page size: default set by -T */
EXTERN int x_width_def INIT(0);
EXTERN int y_width_def INIT(0);
/* Offset: default set by -O and -T bbox */
EXTERN int x_offset_def INIT(0);
EXTERN int y_offset_def INIT(0);
/* Preview-latex's tightpage */
EXTERN int x_width_tightpage INIT(0);
EXTERN int y_width_tightpage INIT(0);
EXTERN int x_offset_tightpage INIT(0);
EXTERN int y_offset_tightpage INIT(0);
/* Paper size: set by -t, for cropmark purposes only */
/* This has yet to be written */
EXTERN int x_pwidth INIT(0);
EXTERN int y_pwidth INIT(0);
/* The transparent border preview-latex desires */
EXTERN int borderwidth INIT(0);
/* fallback color for transparent background */
EXTERN bool userbordercolor INIT(FALSE); /* if true, use user-supplied color */
EXTERN struct dvi_color bordercolor;
EXTERN gdImagePtr page_imagep INIT(NULL);
EXTERN int32_t shrinkfactor INIT(4);
EXTERN struct dvi_color cstack[STACK_SIZE];
EXTERN int csp INIT(1);
EXTERN struct font_entry* currentfont;
EXTERN struct dvi_data* dvi INIT(NULL);
#ifdef HAVE_FT2
EXTERN FT_Library libfreetype INIT(NULL);
#endif
#define EXIT_FATAL EXIT_FAILURE+1
EXTERN int exitcode INIT(EXIT_SUCCESS);
#endif /* DVIPNG_H */
|