1 28994509 2004-04-21 devnull typedef struct Rawimage Rawimage;
 2 28994509 2004-04-21 devnull 
 3 28994509 2004-04-21 devnull struct Rawimage
 4 28994509 2004-04-21 devnull {
 5 28994509 2004-04-21 devnull 	Rectangle	r;
 6 28994509 2004-04-21 devnull 	uchar	*cmap;
 7 28994509 2004-04-21 devnull 	int		cmaplen;
 8 28994509 2004-04-21 devnull 	int		nchans;
 9 28994509 2004-04-21 devnull 	uchar	*chans[4];
10 28994509 2004-04-21 devnull 	int		chandesc;
11 28994509 2004-04-21 devnull 	int		chanlen;
12 28994509 2004-04-21 devnull 
13 28994509 2004-04-21 devnull 	int		fields;    	/* defined by format */
14 28994509 2004-04-21 devnull 	int		gifflags;	/* gif only; graphics control extension flag word */
15 28994509 2004-04-21 devnull 	int		gifdelay;	/* gif only; graphics control extension delay in cs */
16 28994509 2004-04-21 devnull 	int		giftrindex;	/* gif only; graphics control extension transparency index */
17 28994509 2004-04-21 devnull 	int		gifloopcount;	/* number of times to loop in animation; 0 means forever */
18 28994509 2004-04-21 devnull };
19 28994509 2004-04-21 devnull 
20 28994509 2004-04-21 devnull enum
21 28994509 2004-04-21 devnull {
22 28994509 2004-04-21 devnull 	/* Channel descriptors */
23 28994509 2004-04-21 devnull 	CRGB	= 0,	/* three channels, no map */
24 28994509 2004-04-21 devnull 	CYCbCr	= 1,	/* three channels, no map, level-shifted 601 color space */
25 28994509 2004-04-21 devnull 	CY	= 2,	/* one channel, luminance */
26 28994509 2004-04-21 devnull 	CRGB1	= 3,	/* one channel, map present */
27 28994509 2004-04-21 devnull 	CRGBV	= 4,	/* one channel, map is RGBV, understood */
28 28994509 2004-04-21 devnull 	CRGB24	= 5,	/* one channel in correct data order for loadimage(RGB24) */
29 28994509 2004-04-21 devnull 	CRGBA32	= 6,	/* one channel in correct data order for loadimage(RGBA32) */
30 28994509 2004-04-21 devnull 	CYA16	= 7,	/* one channel in correct data order for loadimage(Grey8+Alpha8) */
31 28994509 2004-04-21 devnull 	CRGBVA16= 8,	/* one channel in correct data order for loadimage(CMAP8+Alpha8) */
32 28994509 2004-04-21 devnull 
33 28994509 2004-04-21 devnull 	/* GIF flags */
34 28994509 2004-04-21 devnull 	TRANSP	= 1,
35 28994509 2004-04-21 devnull 	INPUT	= 2,
36 28994509 2004-04-21 devnull 	DISPMASK = 7<<2
37 28994509 2004-04-21 devnull };
38 28994509 2004-04-21 devnull 
39 28994509 2004-04-21 devnull 
40 28994509 2004-04-21 devnull enum{	/* PNG flags */
41 28994509 2004-04-21 devnull 	II_GAMMA =	1 << 0,
42 cbeb0b26 2006-04-01 devnull 	II_COMMENT =	1 << 1
43 28994509 2004-04-21 devnull };
44 28994509 2004-04-21 devnull 
45 28994509 2004-04-21 devnull typedef struct ImageInfo {
46 28994509 2004-04-21 devnull 	ulong	fields_set;
47 28994509 2004-04-21 devnull 	double	gamma;
48 28994509 2004-04-21 devnull 	char	*comment;
49 28994509 2004-04-21 devnull } ImageInfo;
50 28994509 2004-04-21 devnull 
51 28994509 2004-04-21 devnull 
52 28994509 2004-04-21 devnull Rawimage**	readjpg(int, int);
53 28994509 2004-04-21 devnull Rawimage**	Breadjpg(Biobuf *b, int);
54 28994509 2004-04-21 devnull Rawimage**	readpng(int, int);
55 28994509 2004-04-21 devnull Rawimage**	Breadpng(Biobuf *b, int);
56 28994509 2004-04-21 devnull Rawimage**	readgif(int, int);
57 28994509 2004-04-21 devnull Rawimage**	readpixmap(int, int);
58 28994509 2004-04-21 devnull Rawimage*	torgbv(Rawimage*, int);
59 28994509 2004-04-21 devnull Rawimage*	totruecolor(Rawimage*, int);
60 28994509 2004-04-21 devnull int		writerawimage(int, Rawimage*);
61 28994509 2004-04-21 devnull void*		_remaperror(char*, ...);
62 28994509 2004-04-21 devnull 
63 28994509 2004-04-21 devnull #ifndef _MEMDRAW_H_
64 28994509 2004-04-21 devnull typedef struct Memimage Memimage;	/* avoid necessity to include memdraw.h */
65 28994509 2004-04-21 devnull #endif
66 28994509 2004-04-21 devnull 
67 28994509 2004-04-21 devnull char*		startgif(Biobuf*, Image*, int);
68 28994509 2004-04-21 devnull char*		writegif(Biobuf*, Image*, char*, int, int);
69 28994509 2004-04-21 devnull void		endgif(Biobuf*);
70 28994509 2004-04-21 devnull char*		memstartgif(Biobuf*, Memimage*, int);
71 28994509 2004-04-21 devnull char*		memwritegif(Biobuf*, Memimage*, char*, int, int);
72 28994509 2004-04-21 devnull void		memendgif(Biobuf*);
73 28994509 2004-04-21 devnull Image*		onechan(Image*);
74 28994509 2004-04-21 devnull Memimage*	memonechan(Memimage*);
75 28994509 2004-04-21 devnull 
76 28994509 2004-04-21 devnull char*		writeppm(Biobuf*, Image*, char*);
77 28994509 2004-04-21 devnull char*		memwriteppm(Biobuf*, Memimage*, char*);
78 28994509 2004-04-21 devnull Image*		multichan(Image*);
79 28994509 2004-04-21 devnull Memimage*	memmultichan(Memimage*);
80 28994509 2004-04-21 devnull 
81 28994509 2004-04-21 devnull char*		memwritepng(Biobuf*, Memimage*, ImageInfo*);
82 28994509 2004-04-21 devnull extern int drawlog2[];