/* 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-Åke 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 HAVE_SYS_TIME_H
# include <sys/time.h>
# endif
# include <time.h>
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 */