549 lines
16 KiB
C
549 lines
16 KiB
C
|
/*
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _PLAN9_SOURCE
|
||
|
|
This header file is an extension to ANSI/POSIX
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef __DRAW_H_
|
||
|
|
#define __DRAW_H_
|
||
|
|
#pragma src "/sys/src/ape/lib/draw"
|
||
|
|
#pragma lib "/$M/lib/ape/libdraw.a"
|
||
|
|
|
||
|
|
#include <u.h>
|
||
|
|
#include <fmt.h>
|
||
|
|
#include <qlock.h>
|
||
|
|
|
||
|
|
typedef struct Cachefont Cachefont;
|
||
|
|
typedef struct Cacheinfo Cacheinfo;
|
||
|
|
typedef struct Cachesubf Cachesubf;
|
||
|
|
typedef struct Display Display;
|
||
|
|
typedef struct Font Font;
|
||
|
|
typedef struct Fontchar Fontchar;
|
||
|
|
typedef struct Image Image;
|
||
|
|
typedef struct Mouse Mouse;
|
||
|
|
typedef struct Point Point;
|
||
|
|
typedef struct Rectangle Rectangle;
|
||
|
|
typedef struct RGB RGB;
|
||
|
|
typedef struct Screen Screen;
|
||
|
|
typedef struct Subfont Subfont;
|
||
|
|
|
||
|
|
#pragma varargck type "R" Rectangle
|
||
|
|
#pragma varargck type "P" Point
|
||
|
|
extern int Rfmt(Fmt*);
|
||
|
|
extern int Pfmt(Fmt*);
|
||
|
|
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
DOpaque = 0xFFFFFFFF,
|
||
|
|
DTransparent = 0x00000000, /* only useful for allocimage, memfillcolor */
|
||
|
|
DBlack = 0x000000FF,
|
||
|
|
DWhite = 0xFFFFFFFF,
|
||
|
|
DRed = 0xFF0000FF,
|
||
|
|
DGreen = 0x00FF00FF,
|
||
|
|
DBlue = 0x0000FFFF,
|
||
|
|
DCyan = 0x00FFFFFF,
|
||
|
|
DMagenta = 0xFF00FFFF,
|
||
|
|
DYellow = 0xFFFF00FF,
|
||
|
|
DPaleyellow = 0xFFFFAAFF,
|
||
|
|
DDarkyellow = 0xEEEE9EFF,
|
||
|
|
DDarkgreen = 0x448844FF,
|
||
|
|
DPalegreen = 0xAAFFAAFF,
|
||
|
|
DMedgreen = 0x88CC88FF,
|
||
|
|
DDarkblue = 0x000055FF,
|
||
|
|
DPalebluegreen= 0xAAFFFFFF,
|
||
|
|
DPaleblue = 0x0000BBFF,
|
||
|
|
DBluegreen = 0x008888FF,
|
||
|
|
DGreygreen = 0x55AAAAFF,
|
||
|
|
DPalegreygreen = 0x9EEEEEFF,
|
||
|
|
DYellowgreen = 0x99994CFF,
|
||
|
|
DMedblue = 0x000099FF,
|
||
|
|
DGreyblue = 0x005DBBFF,
|
||
|
|
DPalegreyblue = 0x4993DDFF,
|
||
|
|
DPurpleblue = 0x8888CCFF,
|
||
|
|
|
||
|
|
DNotacolor = 0xFFFFFF00,
|
||
|
|
DNofill = DNotacolor,
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
Displaybufsize = 8000,
|
||
|
|
ICOSSCALE = 1024,
|
||
|
|
Borderwidth = 4,
|
||
|
|
};
|
||
|
|
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
/* refresh methods */
|
||
|
|
Refbackup = 0,
|
||
|
|
Refnone = 1,
|
||
|
|
Refmesg = 2
|
||
|
|
};
|
||
|
|
#define NOREFRESH ((void*)-1)
|
||
|
|
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
/* line ends */
|
||
|
|
Endsquare = 0,
|
||
|
|
Enddisc = 1,
|
||
|
|
Endarrow = 2,
|
||
|
|
Endmask = 0x1F
|
||
|
|
};
|
||
|
|
|
||
|
|
#define ARROW(a, b, c) (Endarrow|((a)<<5)|((b)<<14)|((c)<<23))
|
||
|
|
|
||
|
|
typedef enum
|
||
|
|
{
|
||
|
|
/* Porter-Duff compositing operators */
|
||
|
|
Clear = 0,
|
||
|
|
|
||
|
|
SinD = 8,
|
||
|
|
DinS = 4,
|
||
|
|
SoutD = 2,
|
||
|
|
DoutS = 1,
|
||
|
|
|
||
|
|
S = SinD|SoutD,
|
||
|
|
SoverD = SinD|SoutD|DoutS,
|
||
|
|
SatopD = SinD|DoutS,
|
||
|
|
SxorD = SoutD|DoutS,
|
||
|
|
|
||
|
|
D = DinS|DoutS,
|
||
|
|
DoverS = DinS|DoutS|SoutD,
|
||
|
|
DatopS = DinS|SoutD,
|
||
|
|
DxorS = DoutS|SoutD, /* == SxorD */
|
||
|
|
|
||
|
|
Ncomp = 12,
|
||
|
|
} Drawop;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* image channel descriptors
|
||
|
|
*/
|
||
|
|
enum {
|
||
|
|
CRed = 0,
|
||
|
|
CGreen,
|
||
|
|
CBlue,
|
||
|
|
CGrey,
|
||
|
|
CAlpha,
|
||
|
|
CMap,
|
||
|
|
CIgnore,
|
||
|
|
NChan,
|
||
|
|
};
|
||
|
|
|
||
|
|
#define __DC(type, nbits) ((((type)&15)<<4)|((nbits)&15))
|
||
|
|
#define CHAN1(a,b) __DC(a,b)
|
||
|
|
#define CHAN2(a,b,c,d) (CHAN1((a),(b))<<8|__DC((c),(d)))
|
||
|
|
#define CHAN3(a,b,c,d,e,f) (CHAN2((a),(b),(c),(d))<<8|__DC((e),(f)))
|
||
|
|
#define CHAN4(a,b,c,d,e,f,g,h) (CHAN3((a),(b),(c),(d),(e),(f))<<8|__DC((g),(h)))
|
||
|
|
|
||
|
|
#define NBITS(c) ((c)&15)
|
||
|
|
#define TYPE(c) (((c)>>4)&15)
|
||
|
|
|
||
|
|
enum {
|
||
|
|
GREY1 = CHAN1(CGrey, 1),
|
||
|
|
GREY2 = CHAN1(CGrey, 2),
|
||
|
|
GREY4 = CHAN1(CGrey, 4),
|
||
|
|
GREY8 = CHAN1(CGrey, 8),
|
||
|
|
CMAP8 = CHAN1(CMap, 8),
|
||
|
|
RGB15 = CHAN4(CIgnore, 1, CRed, 5, CGreen, 5, CBlue, 5),
|
||
|
|
RGB16 = CHAN3(CRed, 5, CGreen, 6, CBlue, 5),
|
||
|
|
RGB24 = CHAN3(CRed, 8, CGreen, 8, CBlue, 8),
|
||
|
|
RGBA32 = CHAN4(CRed, 8, CGreen, 8, CBlue, 8, CAlpha, 8),
|
||
|
|
ARGB32 = CHAN4(CAlpha, 8, CRed, 8, CGreen, 8, CBlue, 8), /* stupid VGAs */
|
||
|
|
XRGB32 = CHAN4(CIgnore, 8, CRed, 8, CGreen, 8, CBlue, 8),
|
||
|
|
BGR24 = CHAN3(CBlue, 8, CGreen, 8, CRed, 8),
|
||
|
|
ABGR32 = CHAN4(CAlpha, 8, CBlue, 8, CGreen, 8, CRed, 8),
|
||
|
|
XBGR32 = CHAN4(CIgnore, 8, CBlue, 8, CGreen, 8, CRed, 8),
|
||
|
|
};
|
||
|
|
|
||
|
|
extern char* chantostr(char*, ulong);
|
||
|
|
extern ulong strtochan(char*);
|
||
|
|
extern int chantodepth(ulong);
|
||
|
|
|
||
|
|
struct Point
|
||
|
|
{
|
||
|
|
int x;
|
||
|
|
int y;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct Rectangle
|
||
|
|
{
|
||
|
|
Point min;
|
||
|
|
Point max;
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef void (*Reffn)(Image*, Rectangle, void*);
|
||
|
|
|
||
|
|
struct Screen
|
||
|
|
{
|
||
|
|
Display *display; /* display holding data */
|
||
|
|
int id; /* id of system-held Screen */
|
||
|
|
Image *image; /* unused; for reference only */
|
||
|
|
Image *fill; /* color to paint behind windows */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct Display
|
||
|
|
{
|
||
|
|
QLock qlock;
|
||
|
|
int locking; /*program is using lockdisplay */
|
||
|
|
int dirno;
|
||
|
|
int fd;
|
||
|
|
int reffd;
|
||
|
|
int ctlfd;
|
||
|
|
int imageid;
|
||
|
|
int local;
|
||
|
|
void (*error)(Display*, char*);
|
||
|
|
char *devdir;
|
||
|
|
char *windir;
|
||
|
|
char oldlabel[64];
|
||
|
|
ulong dataqid;
|
||
|
|
Image *white;
|
||
|
|
Image *black;
|
||
|
|
Image *opaque;
|
||
|
|
Image *transparent;
|
||
|
|
Image *image;
|
||
|
|
uchar *buf;
|
||
|
|
int bufsize;
|
||
|
|
uchar *bufp;
|
||
|
|
Font *defaultfont;
|
||
|
|
Subfont *defaultsubfont;
|
||
|
|
Image *windows;
|
||
|
|
Image *screenimage;
|
||
|
|
int _isnewdisplay;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct Image
|
||
|
|
{
|
||
|
|
Display *display; /* display holding data */
|
||
|
|
int id; /* id of system-held Image */
|
||
|
|
Rectangle r; /* rectangle in data area, local coords */
|
||
|
|
Rectangle clipr; /* clipping region */
|
||
|
|
int depth; /* number of bits per pixel */
|
||
|
|
ulong chan;
|
||
|
|
int repl; /* flag: data replicates to tile clipr */
|
||
|
|
Screen *screen; /* 0 if not a window */
|
||
|
|
Image *next; /* next in list of windows */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct RGB
|
||
|
|
{
|
||
|
|
ulong red;
|
||
|
|
ulong green;
|
||
|
|
ulong blue;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Subfonts
|
||
|
|
*
|
||
|
|
* given char c, Subfont *f, Fontchar *i, and Point p, one says
|
||
|
|
* i = f->info+c;
|
||
|
|
* draw(b, Rect(p.x+i->left, p.y+i->top,
|
||
|
|
* p.x+i->left+((i+1)->x-i->x), p.y+i->bottom),
|
||
|
|
* color, f->bits, Pt(i->x, i->top));
|
||
|
|
* p.x += i->width;
|
||
|
|
* to draw characters in the specified color (itself an Image) in Image b.
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct Fontchar
|
||
|
|
{
|
||
|
|
int x; /* left edge of bits */
|
||
|
|
uchar top; /* first non-zero scan-line */
|
||
|
|
uchar bottom; /* last non-zero scan-line + 1 */
|
||
|
|
char left; /* offset of baseline */
|
||
|
|
uchar width; /* width of baseline */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct Subfont
|
||
|
|
{
|
||
|
|
char *name;
|
||
|
|
short n; /* number of chars in font */
|
||
|
|
uchar height; /* height of image */
|
||
|
|
char ascent; /* top of image to baseline */
|
||
|
|
Fontchar *info; /* n+1 character descriptors */
|
||
|
|
Image *bits; /* of font */
|
||
|
|
int ref;
|
||
|
|
};
|
||
|
|
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
/* starting values */
|
||
|
|
LOG2NFCACHE = 6,
|
||
|
|
NFCACHE = (1<<LOG2NFCACHE), /* #chars cached */
|
||
|
|
NFLOOK = 5, /* #chars to scan in cache */
|
||
|
|
NFSUBF = 2, /* #subfonts to cache */
|
||
|
|
/* max value */
|
||
|
|
MAXFCACHE = 1024+NFLOOK, /* upper limit */
|
||
|
|
MAXSUBF = 50, /* generous upper limit */
|
||
|
|
/* deltas */
|
||
|
|
DSUBF = 4,
|
||
|
|
/* expiry ages */
|
||
|
|
SUBFAGE = 10000,
|
||
|
|
CACHEAGE = 10000
|
||
|
|
};
|
||
|
|
|
||
|
|
struct Cachefont
|
||
|
|
{
|
||
|
|
Rune min; /* lowest rune value to be taken from subfont */
|
||
|
|
Rune max; /* highest rune value+1 to be taken from subfont */
|
||
|
|
int offset; /* position in subfont of character at min */
|
||
|
|
char *name; /* stored in font */
|
||
|
|
char *subfontname; /* to access subfont */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct Cacheinfo
|
||
|
|
{
|
||
|
|
ushort x; /* left edge of bits */
|
||
|
|
uchar width; /* width of baseline */
|
||
|
|
schar left; /* offset of baseline */
|
||
|
|
Rune value; /* value of character at this slot in cache */
|
||
|
|
ushort age;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct Cachesubf
|
||
|
|
{
|
||
|
|
ulong age; /* for replacement */
|
||
|
|
Cachefont *cf; /* font info that owns us */
|
||
|
|
Subfont *f; /* attached subfont */
|
||
|
|
};
|
||
|
|
|
||
|
|
struct Font
|
||
|
|
{
|
||
|
|
char *name;
|
||
|
|
Display *display;
|
||
|
|
short height; /* max height of image, interline spacing */
|
||
|
|
short ascent; /* top of image to baseline */
|
||
|
|
short width; /* widest so far; used in caching only */
|
||
|
|
short nsub; /* number of subfonts */
|
||
|
|
ulong age; /* increasing counter; used for LRU */
|
||
|
|
int maxdepth; /* maximum depth of all loaded subfonts */
|
||
|
|
int ncache; /* size of cache */
|
||
|
|
int nsubf; /* size of subfont list */
|
||
|
|
Cacheinfo *cache;
|
||
|
|
Cachesubf *subf;
|
||
|
|
Cachefont **sub; /* as read from file */
|
||
|
|
Image *cacheimage;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define Dx(r) ((r).max.x-(r).min.x)
|
||
|
|
#define Dy(r) ((r).max.y-(r).min.y)
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Image management
|
||
|
|
*/
|
||
|
|
extern Image* _allocimage(Image*, Display*, Rectangle, ulong, int, ulong, int, int);
|
||
|
|
extern Image* allocimage(Display*, Rectangle, ulong, int, ulong);
|
||
|
|
extern uchar* bufimage(Display*, int);
|
||
|
|
extern int bytesperline(Rectangle, int);
|
||
|
|
extern void closedisplay(Display*);
|
||
|
|
extern void drawerror(Display*, char*);
|
||
|
|
extern int flushimage(Display*, int);
|
||
|
|
extern int freeimage(Image*);
|
||
|
|
extern int _freeimage1(Image*);
|
||
|
|
extern int geninitdraw(char*, void(*)(Display*, char*), char*, char*, char*, int);
|
||
|
|
extern int initdraw(void(*)(Display*, char*), char*, char*);
|
||
|
|
extern int newwindow(char*);
|
||
|
|
extern Display* initdisplay(char*, char*, void(*)(Display*, char*));
|
||
|
|
extern int loadimage(Image*, Rectangle, uchar*, int);
|
||
|
|
extern int cloadimage(Image*, Rectangle, uchar*, int);
|
||
|
|
extern int getwindow(Display*, int);
|
||
|
|
extern int gengetwindow(Display*, char*, Image**, Screen**, int);
|
||
|
|
extern Image* readimage(Display*, int, int);
|
||
|
|
extern Image* creadimage(Display*, int, int);
|
||
|
|
extern int unloadimage(Image*, Rectangle, uchar*, int);
|
||
|
|
extern int wordsperline(Rectangle, int);
|
||
|
|
extern int writeimage(int, Image*, int);
|
||
|
|
extern Image* namedimage(Display*, char*);
|
||
|
|
extern int nameimage(Image*, char*, int);
|
||
|
|
extern Image* allocimagemix(Display*, ulong, ulong);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Colors
|
||
|
|
*/
|
||
|
|
extern void readcolmap(Display*, RGB*);
|
||
|
|
extern void writecolmap(Display*, RGB*);
|
||
|
|
extern ulong setalpha(ulong, uchar);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Windows
|
||
|
|
*/
|
||
|
|
extern Screen* allocscreen(Image*, Image*, int);
|
||
|
|
extern Image* _allocwindow(Image*, Screen*, Rectangle, int, ulong);
|
||
|
|
extern Image* allocwindow(Screen*, Rectangle, int, ulong);
|
||
|
|
extern void bottomnwindows(Image**, int);
|
||
|
|
extern void bottomwindow(Image*);
|
||
|
|
extern int freescreen(Screen*);
|
||
|
|
extern Screen* publicscreen(Display*, int, ulong);
|
||
|
|
extern void topnwindows(Image**, int);
|
||
|
|
extern void topwindow(Image*);
|
||
|
|
extern int originwindow(Image*, Point, Point);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Geometry
|
||
|
|
*/
|
||
|
|
extern Point Pt(int, int);
|
||
|
|
extern Rectangle Rect(int, int, int, int);
|
||
|
|
extern Rectangle Rpt(Point, Point);
|
||
|
|
extern Point addpt(Point, Point);
|
||
|
|
extern Point subpt(Point, Point);
|
||
|
|
extern Point divpt(Point, int);
|
||
|
|
extern Point mulpt(Point, int);
|
||
|
|
extern int eqpt(Point, Point);
|
||
|
|
extern int eqrect(Rectangle, Rectangle);
|
||
|
|
extern Rectangle insetrect(Rectangle, int);
|
||
|
|
extern Rectangle rectaddpt(Rectangle, Point);
|
||
|
|
extern Rectangle rectsubpt(Rectangle, Point);
|
||
|
|
extern Rectangle canonrect(Rectangle);
|
||
|
|
extern int rectXrect(Rectangle, Rectangle);
|
||
|
|
extern int rectinrect(Rectangle, Rectangle);
|
||
|
|
extern void combinerect(Rectangle*, Rectangle);
|
||
|
|
extern int rectclip(Rectangle*, Rectangle);
|
||
|
|
extern int ptinrect(Point, Rectangle);
|
||
|
|
extern void replclipr(Image*, int, Rectangle);
|
||
|
|
extern int drawreplxy(int, int, int); /* used to be drawsetxy */
|
||
|
|
extern Point drawrepl(Rectangle, Point);
|
||
|
|
extern int rgb2cmap(int, int, int);
|
||
|
|
extern int cmap2rgb(int);
|
||
|
|
extern int cmap2rgba(int);
|
||
|
|
extern void icossin(int, int*, int*);
|
||
|
|
extern void icossin2(int, int, int*, int*);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Graphics
|
||
|
|
*/
|
||
|
|
extern void draw(Image*, Rectangle, Image*, Image*, Point);
|
||
|
|
extern void drawop(Image*, Rectangle, Image*, Image*, Point, Drawop);
|
||
|
|
extern void gendraw(Image*, Rectangle, Image*, Point, Image*, Point);
|
||
|
|
extern void gendrawop(Image*, Rectangle, Image*, Point, Image*, Point, Drawop);
|
||
|
|
extern void line(Image*, Point, Point, int, int, int, Image*, Point);
|
||
|
|
extern void lineop(Image*, Point, Point, int, int, int, Image*, Point, Drawop);
|
||
|
|
extern void poly(Image*, Point*, int, int, int, int, Image*, Point);
|
||
|
|
extern void polyop(Image*, Point*, int, int, int, int, Image*, Point, Drawop);
|
||
|
|
extern void fillpoly(Image*, Point*, int, int, Image*, Point);
|
||
|
|
extern void fillpolyop(Image*, Point*, int, int, Image*, Point, Drawop);
|
||
|
|
extern Point string(Image*, Point, Image*, Point, Font*, char*);
|
||
|
|
extern Point stringop(Image*, Point, Image*, Point, Font*, char*, Drawop);
|
||
|
|
extern Point stringn(Image*, Point, Image*, Point, Font*, char*, int);
|
||
|
|
extern Point stringnop(Image*, Point, Image*, Point, Font*, char*, int, Drawop);
|
||
|
|
extern Point runestring(Image*, Point, Image*, Point, Font*, Rune*);
|
||
|
|
extern Point runestringop(Image*, Point, Image*, Point, Font*, Rune*, Drawop);
|
||
|
|
extern Point runestringn(Image*, Point, Image*, Point, Font*, Rune*, int);
|
||
|
|
extern Point runestringnop(Image*, Point, Image*, Point, Font*, Rune*, int, Drawop);
|
||
|
|
extern Point stringbg(Image*, Point, Image*, Point, Font*, char*, Image*, Point);
|
||
|
|
extern Point stringbgop(Image*, Point, Image*, Point, Font*, char*, Image*, Point, Drawop);
|
||
|
|
extern Point stringnbg(Image*, Point, Image*, Point, Font*, char*, int, Image*, Point);
|
||
|
|
extern Point stringnbgop(Image*, Point, Image*, Point, Font*, char*, int, Image*, Point, Drawop);
|
||
|
|
extern Point runestringbg(Image*, Point, Image*, Point, Font*, Rune*, Image*, Point);
|
||
|
|
extern Point runestringbgop(Image*, Point, Image*, Point, Font*, Rune*, Image*, Point, Drawop);
|
||
|
|
extern Point runestringnbg(Image*, Point, Image*, Point, Font*, Rune*, int, Image*, Point);
|
||
|
|
extern Point runestringnbgop(Image*, Point, Image*, Point, Font*, Rune*, int, Image*, Point, Drawop);
|
||
|
|
extern Point _string(Image*, Point, Image*, Point, Font*, char*, Rune*, int, Rectangle, Image*, Point, Drawop);
|
||
|
|
extern Point stringsubfont(Image*, Point, Image*, Subfont*, char*);
|
||
|
|
extern int bezier(Image*, Point, Point, Point, Point, int, int, int, Image*, Point);
|
||
|
|
extern int bezierop(Image*, Point, Point, Point, Point, int, int, int, Image*, Point, Drawop);
|
||
|
|
extern int bezspline(Image*, Point*, int, int, int, int, Image*, Point);
|
||
|
|
extern int bezsplineop(Image*, Point*, int, int, int, int, Image*, Point, Drawop);
|
||
|
|
extern int bezsplinepts(Point*, int, Point**);
|
||
|
|
extern int fillbezier(Image*, Point, Point, Point, Point, int, Image*, Point);
|
||
|
|
extern int fillbezierop(Image*, Point, Point, Point, Point, int, Image*, Point, Drawop);
|
||
|
|
extern int fillbezspline(Image*, Point*, int, int, Image*, Point);
|
||
|
|
extern int fillbezsplineop(Image*, Point*, int, int, Image*, Point, Drawop);
|
||
|
|
extern void ellipse(Image*, Point, int, int, int, Image*, Point);
|
||
|
|
extern void ellipseop(Image*, Point, int, int, int, Image*, Point, Drawop);
|
||
|
|
extern void fillellipse(Image*, Point, int, int, Image*, Point);
|
||
|
|
extern void fillellipseop(Image*, Point, int, int, Image*, Point, Drawop);
|
||
|
|
extern void arc(Image*, Point, int, int, int, Image*, Point, int, int);
|
||
|
|
extern void arcop(Image*, Point, int, int, int, Image*, Point, int, int, Drawop);
|
||
|
|
extern void fillarc(Image*, Point, int, int, Image*, Point, int, int);
|
||
|
|
extern void fillarcop(Image*, Point, int, int, Image*, Point, int, int, Drawop);
|
||
|
|
extern void border(Image*, Rectangle, int, Image*, Point);
|
||
|
|
extern void borderop(Image*, Rectangle, int, Image*, Point, Drawop);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Font management
|
||
|
|
*/
|
||
|
|
extern Font* openfont(Display*, char*);
|
||
|
|
extern Font* buildfont(Display*, char*, char*);
|
||
|
|
extern void freefont(Font*);
|
||
|
|
extern Font* mkfont(Subfont*, Rune);
|
||
|
|
extern int cachechars(Font*, char**, Rune**, ushort*, int, int*, char**);
|
||
|
|
extern void agefont(Font*);
|
||
|
|
extern Subfont* allocsubfont(char*, int, int, int, Fontchar*, Image*);
|
||
|
|
extern Subfont* lookupsubfont(Display*, char*);
|
||
|
|
extern void installsubfont(char*, Subfont*);
|
||
|
|
extern void uninstallsubfont(Subfont*);
|
||
|
|
extern void freesubfont(Subfont*);
|
||
|
|
extern Subfont* readsubfont(Display*, char*, int, int);
|
||
|
|
extern Subfont* readsubfonti(Display*, char*, int, Image*, int);
|
||
|
|
extern int writesubfont(int, Subfont*);
|
||
|
|
extern void _unpackinfo(Fontchar*, uchar*, int);
|
||
|
|
extern Point stringsize(Font*, char*);
|
||
|
|
extern int stringwidth(Font*, char*);
|
||
|
|
extern int stringnwidth(Font*, char*, int);
|
||
|
|
extern Point runestringsize(Font*, Rune*);
|
||
|
|
extern int runestringwidth(Font*, Rune*);
|
||
|
|
extern int runestringnwidth(Font*, Rune*, int);
|
||
|
|
extern Point strsubfontwidth(Subfont*, char*);
|
||
|
|
extern int loadchar(Font*, Rune, Cacheinfo*, int, int, char**);
|
||
|
|
extern char* subfontname(char*, char*, int);
|
||
|
|
extern Subfont* _getsubfont(Display*, char*);
|
||
|
|
extern Subfont* getdefont(Display*);
|
||
|
|
extern void lockdisplay(Display*);
|
||
|
|
extern void unlockdisplay(Display*);
|
||
|
|
extern int drawlsetrefresh(ulong, int, void*, void*);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Predefined
|
||
|
|
*/
|
||
|
|
extern uchar defontdata[];
|
||
|
|
extern int sizeofdefont;
|
||
|
|
extern Point ZP;
|
||
|
|
extern Rectangle ZR;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Set up by initdraw()
|
||
|
|
*/
|
||
|
|
extern Display *display;
|
||
|
|
extern Font *font;
|
||
|
|
extern Image *screen;
|
||
|
|
extern Screen *_screen;
|
||
|
|
extern int _cursorfd;
|
||
|
|
extern int _drawdebug; /* set to 1 to see errors from flushimage */
|
||
|
|
extern void _setdrawop(Display*, Drawop);
|
||
|
|
|
||
|
|
#define BGSHORT(p) (((p)[0]<<0) | ((p)[1]<<8))
|
||
|
|
#define BGLONG(p) ((BGSHORT(p)<<0) | (BGSHORT(p+2)<<16))
|
||
|
|
#define BPSHORT(p, v) ((p)[0]=(v), (p)[1]=((v)>>8))
|
||
|
|
#define BPLONG(p, v) (BPSHORT(p, (v)), BPSHORT(p+2, (v)>>16))
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Compressed image file parameters and helper routines
|
||
|
|
*/
|
||
|
|
#define NMATCH 3 /* shortest match possible */
|
||
|
|
#define NRUN (NMATCH+31) /* longest match possible */
|
||
|
|
#define NMEM 1024 /* window size */
|
||
|
|
#define NDUMP 128 /* maximum length of dump */
|
||
|
|
#define NCBLOCK 6000 /* size of compressed blocks */
|
||
|
|
extern void _twiddlecompressed(uchar*, int);
|
||
|
|
extern int _compblocksize(Rectangle, int);
|
||
|
|
|
||
|
|
/* XXX backwards helps; should go */
|
||
|
|
extern ulong drawld2chan[];
|
||
|
|
extern void drawsetdebug(int);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|