1 #undef pipe
2 
3 typedef struct Document Document;
4 
5 struct Document {
6 	char *docname;
7 	int npage;
8 	int fwdonly;
9 	char* (*pagename)(Document*, int);
10 	Image* (*drawpage)(Document*, int);
11 	int	(*addpage)(Document*, char*);
12 	int	(*rmpage)(Document*, int);
13 	Biobuf *b;
14 	void *extra;
15 	int type;
16 };
17 
18 typedef struct Graphic	Graphic;
19 
20 struct Graphic {
21 	int type;
22 	int fd;
23 	char *name;
24 };
25 
26 enum {
27 	Ipic,
28 	Itiff,
29 	Ijpeg,
30 	Igif,
31 	Iinferno,
32 	Ifax,
33 	Icvt2pic,
34 	Iplan9bm,
35 	Ippm,
36 	Ipng,
37 	Iyuv,
38 	Ibmp,
39 };
40 
41 enum {
42 	Tgfx,
43 	Tpdf,
44 	Tps,
45 }
46 ;
47 
48 void *emalloc(int);
49 void *erealloc(void*, int);
50 char *estrdup(char*);
51 int spawncmd(char*, char **, int, int, int);
52 
53 int spooltodisk(uchar*, int, char**);
54 int stdinpipe(uchar*, int);
55 Document *initps(Biobuf*, int, char**, uchar*, int);
56 Document *initpdf(Biobuf*, int, char**, uchar*, int);
57 Document *initgfx(Biobuf*, int, char**, uchar*, int);
58 Document *inittroff(Biobuf*, int, char**, uchar*, int);
59 Document *initdvi(Biobuf*, int, char**, uchar*, int);
60 Document *initmsdoc(Biobuf*, int, char**, uchar*, int);
61 
62 void viewer(Document*);
63 extern Cursor reading;
64 extern int chatty;
65 extern int goodps;
66 extern int textbits, gfxbits;
67 extern int reverse;
68 extern int clean;
69 extern int ppi;
70 extern int teegs;
71 extern int truetoboundingbox;
72 extern int wctlfd;
73 extern int resizing;
74 extern int mknewwindow;
75 extern int fitwin;
76 
77 void rot180(Image*);
78 Image *rot90(Image*);
79 Image *rot270(Image*);
80 Image *resample(Image*, Image*);
81 
82 /* ghostscript interface shared by ps, pdf */
83 typedef struct GSInfo	GSInfo;
84 typedef struct PDFInfo	PDFInfo;
85 typedef struct Page	Page;
86 typedef struct PSInfo	PSInfo;
87 struct GSInfo {
88 	Graphic g;
89 	int gsfd;
90 	Biobuf gsrd;
91 	int gspid;
92 	int ppi;
93 };
94 struct PDFInfo {
95 	GSInfo gs;
96 	Rectangle *pagebbox;
97 };
98 struct Page {
99 	char *name;
100 	int offset;			/* offset of page beginning within file */
101 };
102 struct PSInfo {
103 	GSInfo gs;
104 	Rectangle bbox;	/* default bounding box */
105 	Page *page;
106 	int npage;
107 	int clueless;	/* don't know where page boundaries are */
108 	long psoff;	/* location of %! in file */
109 	char ctm[256];
110 };
111 
112 void	waitgs(GSInfo*);
113 int	gscmd(GSInfo*, char*, ...);
114 int	spawngs(GSInfo*, char*);
115 void	setdim(GSInfo*, Rectangle, int, int);
116 int	spawnwriter(GSInfo*, Biobuf*);
117 Rectangle	screenrect(void);
118 void	newwin(void);
119 void	zerox(void);
120 Rectangle winrect(void);
121 void	resize(int, int);
122 int	max(int, int);
123 int	min(int, int);
124 void	wexits(char*);
125 Image*	xallocimage(Display*, Rectangle, ulong, int, ulong);
126 int	bell(void*, char*);
127 Image*	convert(Graphic *g);
128 Image*	cachedpage(Document*, int, int);
129 void	cacheflush(void);
130 void   fit(void);
131 
132 extern char tempfile[40];
133 
134 extern int stdinfd;
135 extern int truecolor;
136 
137 
138 /* BUG BUG BUG BUG BUG: cannot use new draw operations in drawterm,
139  * or in vncs, and there is a bug in the kernel for copying images
140  * from cpu memory -> video memory (memmove is not being used).
141  * until all that is settled, ignore the draw operators.
142  */
143 #define drawop(a,b,c,d,e,f) draw(a,b,c,d,e)
144 #define gendrawop(a,b,c,d,e,f,g) gendraw(a,b,c,d,e,f)