/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ typedef struct Document Document; struct Document {	char *docname;	int npage;	int fwdonly;	char* (*pagename)(Document*, int);	Image* (*drawpage)(Document*, int);	int	(*addpage)(Document*, char*);	int	(*rmpage)(Document*, int);	Biobuf *b;	void *extra;}; void *emalloc(int);void *erealloc(void*, int);char *estrdup(char*);int spawncmd(char*, char **, int, int, int); int spooltodisk(uchar*, int, char**);int stdinpipe(uchar*, int);Document *initps(Biobuf*, int, char**, uchar*, int);Document *initpdf(Biobuf*, int, char**, uchar*, int);Document *initgfx(Biobuf*, int, char**, uchar*, int);Document *inittroff(Biobuf*, int, char**, uchar*, int);Document *initdvi(Biobuf*, int, char**, uchar*, int);Document *initmsdoc(Biobuf*, int, char**, uchar*, int);void setlabel(char *); void viewer(Document*);extern Cursor reading;extern int chatty;extern int goodps;extern int textbits, gfxbits;extern int reverse;extern int clean;extern int ppi;extern int teegs;extern int truetoboundingbox;extern int wctlfd;extern int resizing;extern int mknewwindow; void rot180(Image*);Image *rot90(Image*);Image *rot270(Image*);Image *resample(Image*, Image*); /* ghostscript interface shared by ps, pdf */typedef struct GSInfo	GSInfo;struct GSInfo {	int gsfd;	Biobuf gsrd;	int gspid;	int gsdfd;	int ppi;};void	waitgs(GSInfo*);int	gscmd(GSInfo*, char*, ...);int	spawngs(GSInfo*, char*);void	setdim(GSInfo*, Rectangle, int, int);int	spawnwriter(GSInfo*, Biobuf*);Rectangle	screenrect(void);void	newwin(void);void	zerox(void);Rectangle winrect(void);void	resize(int, int);int	max(int, int);int	min(int, int);void	wexits(char*);Image*	xallocimage(Display*, Rectangle, ulong, int, ulong);int	bell(void*, char*);int	opentemp(char *template);Image*	cachedpage(Document*, int, int);void	cacheflush(void); extern int stdinfd;extern int truecolor; /* BUG BUG BUG BUG BUG: cannot use new draw operations in drawterm, * or in vncs, and there is a bug in the kernel for copying images * from cpu memory -> video memory (memmove is not being used). * until all that is settled, ignore the draw operators. */#define drawop(a,b,c,d,e,f) draw(a,b,c,d,e)#define gendrawop(a,b,c,d,e,f,g) gendraw(a,b,c,d,e,f)