| #ifndef _DRAW_H_ |
| #define _DRAW_H_ 1 |
| #if defined(__cplusplus) |
| extern "C" { |
| #endif |
| |
| 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; |
| |
| extern int Rfmt(Fmt*); |
| extern int Pfmt(Fmt*); |
| |
| #define DOpaque 0xFFFFFFFF |
| #define DTransparent 0x00000000 /* only useful for allocimage memfillcolor */ |
| #define DBlack 0x000000FF |
| #define DWhite 0xFFFFFFFF |
| #define DRed 0xFF0000FF |
| #define DGreen 0x00FF00FF |
| #define DBlue 0x0000FFFF |
| #define DCyan 0x00FFFFFF |
| #define DMagenta 0xFF00FFFF |
| #define DYellow 0xFFFF00FF |
| #define DPaleyellow 0xFFFFAAFF |
| #define DDarkyellow 0xEEEE9EFF |
| #define DDarkgreen 0x448844FF |
| #define DPalegreen 0xAAFFAAFF |
| #define DMedgreen 0x88CC88FF |
| #define DDarkblue 0x000055FF |
| #define DPalebluegreen 0xAAFFFFFF |
| #define DPaleblue 0x0000BBFF |
| #define DBluegreen 0x008888FF |
| #define DGreygreen 0x55AAAAFF |
| #define DPalegreygreen 0x9EEEEEFF |
| #define DYellowgreen 0x99994CFF |
| #define DMedblue 0x000099FF |
| #define DGreyblue 0x005DBBFF |
| #define DPalegreyblue 0x4993DDFF |
| #define DPurpleblue 0x8888CCFF |
| |
| #define DNotacolor 0xFFFFFF00 |
| #define 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), |
| BGR24 = CHAN3(CBlue, 8, CGreen, 8, CRed, 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), |
| XBGR32 = CHAN4(CIgnore, 8, CBlue, 8, CGreen, 8, CRed, 8), |
| }; |
| |
| extern char* chantostr(char*, u32int); |
| extern u32int strtochan(char*); |
| extern int chantodepth(u32int); |
| |
| 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 imageid; |
| int local; |
| void (*error)(Display*, char*); |
| char *devdir; |
| char *windir; |
| char oldlabel[64]; |
| u32int dataqid; |
| Image *image; |
| Image *white; |
| Image *black; |
| Image *opaque; |
| Image *transparent; |
| uchar *buf; |
| int bufsize; |
| uchar *bufp; |
| uchar *obuf; |
| int obufsize; |
| uchar *obufp; |
| 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 */ |
| u32int 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 |
| { |
| u32int red; |
| u32int green; |
| u32int blue; |
| }; |
| |
| /* |
| * Subfonts |
| * |
| * given char c, Subfont *f, Fontchar *i, and Point p, one says |
| * i = f->info+c; |
| * void(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 |
| { |
| u32int 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 */ |
| u32int 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) |
| |
| /* |
| * Image management |
| */ |
| extern Image* _allocimage(Image*, Display*, Rectangle, u32int, int, u32int, int, int); |
| extern Image* allocimage(Display*, Rectangle, u32int, int, u32int); |
| 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 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*, u32int, u32int); |
| extern int drawsetlabel(Display*, char*); |
| |
| /* |
| * Colors |
| */ |
| extern void readcolmap(Display*, RGB*); |
| extern void writecolmap(Display*, RGB*); |
| extern u32int setalpha(u32int, uchar); |
| |
| /* |
| * Windows |
| */ |
| extern Screen* allocscreen(Image*, Image*, int); |
| extern Image* _allocwindow(Image*, Screen*, Rectangle, int, u32int); |
| extern Image* allocwindow(Screen*, Rectangle, int, u32int); |
| extern void bottomnwindows(Image**, int); |
| extern void bottomwindow(Image*); |
| extern int freescreen(Screen*); |
| extern Screen* publicscreen(Display*, int, u32int); |
| 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(u32int, 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); |
| extern Display *_initdisplay(void(*)(Display*,char*), char*); |
| |
| #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 u32int drawld2chan[]; |
| extern void drawsetdebug(int); |
| |
| /* |
| * Snarf buffer |
| */ |
| enum |
| { |
| SnarfSize = 64*1024, |
| }; |
| char *getsnarf(void); |
| void putsnarf(char*); |
| |
| void drawtopwindow(void); |
| void drawresizewindow(Rectangle); |
| extern char *winsize; |
| |
| /* |
| * Port magic. |
| */ |
| int _drawmsgread(Display*, void*, int); |
| int _drawmsgwrite(Display*, void*, int); |
| int _latin1(Rune*, int); |
| |
| int mousescrollsize(int); |
| |
| #if defined(__cplusplus) |
| } |
| #endif |
| #endif |
