1*8ccd4a63SDavid du Colombier #ifdef PLAN9 2*8ccd4a63SDavid du Colombier #pragma src "/sys/src/libdraw" 3*8ccd4a63SDavid du Colombier #pragma lib "libdraw.a" 4*8ccd4a63SDavid du Colombier #endif 5*8ccd4a63SDavid du Colombier 6*8ccd4a63SDavid du Colombier typedef struct Cachefont Cachefont; 7*8ccd4a63SDavid du Colombier typedef struct Cacheinfo Cacheinfo; 8*8ccd4a63SDavid du Colombier typedef struct Cachesubf Cachesubf; 9*8ccd4a63SDavid du Colombier typedef struct Display Display; 10*8ccd4a63SDavid du Colombier typedef struct Font Font; 11*8ccd4a63SDavid du Colombier typedef struct Fontchar Fontchar; 12*8ccd4a63SDavid du Colombier typedef struct Image Image; 13*8ccd4a63SDavid du Colombier typedef struct Mouse Mouse; 14*8ccd4a63SDavid du Colombier typedef struct Point Point; 15*8ccd4a63SDavid du Colombier typedef struct Rectangle Rectangle; 16*8ccd4a63SDavid du Colombier typedef struct RGB RGB; 17*8ccd4a63SDavid du Colombier typedef struct Screen Screen; 18*8ccd4a63SDavid du Colombier typedef struct Subfont Subfont; 19*8ccd4a63SDavid du Colombier 20*8ccd4a63SDavid du Colombier #ifdef VARARGCK 21*8ccd4a63SDavid du Colombier #pragma varargck type "R" Rectangle 22*8ccd4a63SDavid du Colombier #pragma varargck type "P" Point 23*8ccd4a63SDavid du Colombier #endif 24*8ccd4a63SDavid du Colombier extern int Rfmt(Fmt*); 25*8ccd4a63SDavid du Colombier extern int Pfmt(Fmt*); 26*8ccd4a63SDavid du Colombier 27*8ccd4a63SDavid du Colombier enum 28*8ccd4a63SDavid du Colombier { 29*8ccd4a63SDavid du Colombier DOpaque = 0xFFFFFFFF, 30*8ccd4a63SDavid du Colombier DTransparent = 0x00000000, /* only useful for allocimage, memfillcolor */ 31*8ccd4a63SDavid du Colombier DBlack = 0x000000FF, 32*8ccd4a63SDavid du Colombier DWhite = 0xFFFFFFFF, 33*8ccd4a63SDavid du Colombier DRed = 0xFF0000FF, 34*8ccd4a63SDavid du Colombier DGreen = 0x00FF00FF, 35*8ccd4a63SDavid du Colombier DBlue = 0x0000FFFF, 36*8ccd4a63SDavid du Colombier DCyan = 0x00FFFFFF, 37*8ccd4a63SDavid du Colombier DMagenta = 0xFF00FFFF, 38*8ccd4a63SDavid du Colombier DYellow = 0xFFFF00FF, 39*8ccd4a63SDavid du Colombier DPaleyellow = 0xFFFFAAFF, 40*8ccd4a63SDavid du Colombier DDarkyellow = 0xEEEE9EFF, 41*8ccd4a63SDavid du Colombier DDarkgreen = 0x448844FF, 42*8ccd4a63SDavid du Colombier DPalegreen = 0xAAFFAAFF, 43*8ccd4a63SDavid du Colombier DMedgreen = 0x88CC88FF, 44*8ccd4a63SDavid du Colombier DDarkblue = 0x000055FF, 45*8ccd4a63SDavid du Colombier DPalebluegreen= 0xAAFFFFFF, 46*8ccd4a63SDavid du Colombier DPaleblue = 0x0000BBFF, 47*8ccd4a63SDavid du Colombier DBluegreen = 0x008888FF, 48*8ccd4a63SDavid du Colombier DGreygreen = 0x55AAAAFF, 49*8ccd4a63SDavid du Colombier DPalegreygreen = 0x9EEEEEFF, 50*8ccd4a63SDavid du Colombier DYellowgreen = 0x99994CFF, 51*8ccd4a63SDavid du Colombier DMedblue = 0x000099FF, 52*8ccd4a63SDavid du Colombier DGreyblue = 0x005DBBFF, 53*8ccd4a63SDavid du Colombier DPalegreyblue = 0x4993DDFF, 54*8ccd4a63SDavid du Colombier DPurpleblue = 0x8888CCFF, 55*8ccd4a63SDavid du Colombier 56*8ccd4a63SDavid du Colombier DNotacolor = 0xFFFFFF00, 57*8ccd4a63SDavid du Colombier DNofill = DNotacolor, 58*8ccd4a63SDavid du Colombier 59*8ccd4a63SDavid du Colombier }; 60*8ccd4a63SDavid du Colombier 61*8ccd4a63SDavid du Colombier enum 62*8ccd4a63SDavid du Colombier { 63*8ccd4a63SDavid du Colombier Displaybufsize = 8000, 64*8ccd4a63SDavid du Colombier ICOSSCALE = 1024, 65*8ccd4a63SDavid du Colombier Borderwidth = 4, 66*8ccd4a63SDavid du Colombier }; 67*8ccd4a63SDavid du Colombier 68*8ccd4a63SDavid du Colombier enum 69*8ccd4a63SDavid du Colombier { 70*8ccd4a63SDavid du Colombier /* refresh methods */ 71*8ccd4a63SDavid du Colombier Refbackup = 0, 72*8ccd4a63SDavid du Colombier Refnone = 1, 73*8ccd4a63SDavid du Colombier Refmesg = 2 74*8ccd4a63SDavid du Colombier }; 75*8ccd4a63SDavid du Colombier #define NOREFRESH ((void*)-1) 76*8ccd4a63SDavid du Colombier 77*8ccd4a63SDavid du Colombier enum 78*8ccd4a63SDavid du Colombier { 79*8ccd4a63SDavid du Colombier /* line ends */ 80*8ccd4a63SDavid du Colombier Endsquare = 0, 81*8ccd4a63SDavid du Colombier Enddisc = 1, 82*8ccd4a63SDavid du Colombier Endarrow = 2, 83*8ccd4a63SDavid du Colombier Endmask = 0x1F 84*8ccd4a63SDavid du Colombier }; 85*8ccd4a63SDavid du Colombier 86*8ccd4a63SDavid du Colombier #define ARROW(a, b, c) (Endarrow|((a)<<5)|((b)<<14)|((c)<<23)) 87*8ccd4a63SDavid du Colombier 88*8ccd4a63SDavid du Colombier typedef enum 89*8ccd4a63SDavid du Colombier { 90*8ccd4a63SDavid du Colombier /* Porter-Duff compositing operators */ 91*8ccd4a63SDavid du Colombier Clear = 0, 92*8ccd4a63SDavid du Colombier 93*8ccd4a63SDavid du Colombier SinD = 8, 94*8ccd4a63SDavid du Colombier DinS = 4, 95*8ccd4a63SDavid du Colombier SoutD = 2, 96*8ccd4a63SDavid du Colombier DoutS = 1, 97*8ccd4a63SDavid du Colombier 98*8ccd4a63SDavid du Colombier S = SinD|SoutD, 99*8ccd4a63SDavid du Colombier SoverD = SinD|SoutD|DoutS, 100*8ccd4a63SDavid du Colombier SatopD = SinD|DoutS, 101*8ccd4a63SDavid du Colombier SxorD = SoutD|DoutS, 102*8ccd4a63SDavid du Colombier 103*8ccd4a63SDavid du Colombier D = DinS|DoutS, 104*8ccd4a63SDavid du Colombier DoverS = DinS|DoutS|SoutD, 105*8ccd4a63SDavid du Colombier DatopS = DinS|SoutD, 106*8ccd4a63SDavid du Colombier DxorS = DoutS|SoutD, /* == SxorD */ 107*8ccd4a63SDavid du Colombier 108*8ccd4a63SDavid du Colombier Ncomp = 12, 109*8ccd4a63SDavid du Colombier } Drawop; 110*8ccd4a63SDavid du Colombier 111*8ccd4a63SDavid du Colombier /* 112*8ccd4a63SDavid du Colombier * image channel descriptors 113*8ccd4a63SDavid du Colombier */ 114*8ccd4a63SDavid du Colombier enum { 115*8ccd4a63SDavid du Colombier CRed = 0, 116*8ccd4a63SDavid du Colombier CGreen, 117*8ccd4a63SDavid du Colombier CBlue, 118*8ccd4a63SDavid du Colombier CGrey, 119*8ccd4a63SDavid du Colombier CAlpha, 120*8ccd4a63SDavid du Colombier CMap, 121*8ccd4a63SDavid du Colombier CIgnore, 122*8ccd4a63SDavid du Colombier NChan, 123*8ccd4a63SDavid du Colombier }; 124*8ccd4a63SDavid du Colombier 125*8ccd4a63SDavid du Colombier #define __DC(type, nbits) ((((type)&15)<<4)|((nbits)&15)) 126*8ccd4a63SDavid du Colombier #define CHAN1(a,b) __DC(a,b) 127*8ccd4a63SDavid du Colombier #define CHAN2(a,b,c,d) (CHAN1((a),(b))<<8|__DC((c),(d))) 128*8ccd4a63SDavid du Colombier #define CHAN3(a,b,c,d,e,f) (CHAN2((a),(b),(c),(d))<<8|__DC((e),(f))) 129*8ccd4a63SDavid du Colombier #define CHAN4(a,b,c,d,e,f,g,h) (CHAN3((a),(b),(c),(d),(e),(f))<<8|__DC((g),(h))) 130*8ccd4a63SDavid du Colombier 131*8ccd4a63SDavid du Colombier #define NBITS(c) ((c)&15) 132*8ccd4a63SDavid du Colombier #define TYPE(c) (((c)>>4)&15) 133*8ccd4a63SDavid du Colombier 134*8ccd4a63SDavid du Colombier enum { 135*8ccd4a63SDavid du Colombier GREY1 = CHAN1(CGrey, 1), 136*8ccd4a63SDavid du Colombier GREY2 = CHAN1(CGrey, 2), 137*8ccd4a63SDavid du Colombier GREY4 = CHAN1(CGrey, 4), 138*8ccd4a63SDavid du Colombier GREY8 = CHAN1(CGrey, 8), 139*8ccd4a63SDavid du Colombier CMAP8 = CHAN1(CMap, 8), 140*8ccd4a63SDavid du Colombier RGB15 = CHAN4(CIgnore, 1, CRed, 5, CGreen, 5, CBlue, 5), 141*8ccd4a63SDavid du Colombier RGB16 = CHAN3(CRed, 5, CGreen, 6, CBlue, 5), 142*8ccd4a63SDavid du Colombier RGB24 = CHAN3(CRed, 8, CGreen, 8, CBlue, 8), 143*8ccd4a63SDavid du Colombier BGR24 = CHAN3(CBlue, 8, CGreen, 8, CRed, 8), 144*8ccd4a63SDavid du Colombier RGBA32 = CHAN4(CRed, 8, CGreen, 8, CBlue, 8, CAlpha, 8), 145*8ccd4a63SDavid du Colombier ARGB32 = CHAN4(CAlpha, 8, CRed, 8, CGreen, 8, CBlue, 8), /* stupid VGAs */ 146*8ccd4a63SDavid du Colombier XRGB32 = CHAN4(CIgnore, 8, CRed, 8, CGreen, 8, CBlue, 8), 147*8ccd4a63SDavid du Colombier XBGR32 = CHAN4(CIgnore, 8, CBlue, 8, CGreen, 8, CRed, 8), 148*8ccd4a63SDavid du Colombier }; 149*8ccd4a63SDavid du Colombier 150*8ccd4a63SDavid du Colombier extern char* chantostr(char*, ulong); 151*8ccd4a63SDavid du Colombier extern ulong strtochan(char*); 152*8ccd4a63SDavid du Colombier extern int chantodepth(ulong); 153*8ccd4a63SDavid du Colombier 154*8ccd4a63SDavid du Colombier struct Point 155*8ccd4a63SDavid du Colombier { 156*8ccd4a63SDavid du Colombier int x; 157*8ccd4a63SDavid du Colombier int y; 158*8ccd4a63SDavid du Colombier }; 159*8ccd4a63SDavid du Colombier 160*8ccd4a63SDavid du Colombier struct Rectangle 161*8ccd4a63SDavid du Colombier { 162*8ccd4a63SDavid du Colombier Point min; 163*8ccd4a63SDavid du Colombier Point max; 164*8ccd4a63SDavid du Colombier }; 165*8ccd4a63SDavid du Colombier 166*8ccd4a63SDavid du Colombier typedef void (*Reffn)(Image*, Rectangle, void*); 167*8ccd4a63SDavid du Colombier 168*8ccd4a63SDavid du Colombier struct Screen 169*8ccd4a63SDavid du Colombier { 170*8ccd4a63SDavid du Colombier Display *display; /* display holding data */ 171*8ccd4a63SDavid du Colombier int id; /* id of system-held Screen */ 172*8ccd4a63SDavid du Colombier Image *image; /* unused; for reference only */ 173*8ccd4a63SDavid du Colombier Image *fill; /* color to paint behind windows */ 174*8ccd4a63SDavid du Colombier }; 175*8ccd4a63SDavid du Colombier 176*8ccd4a63SDavid du Colombier struct Display 177*8ccd4a63SDavid du Colombier { 178*8ccd4a63SDavid du Colombier QLock qlock; 179*8ccd4a63SDavid du Colombier int locking; /*program is using lockdisplay */ 180*8ccd4a63SDavid du Colombier int dirno; 181*8ccd4a63SDavid du Colombier int fd; 182*8ccd4a63SDavid du Colombier int reffd; 183*8ccd4a63SDavid du Colombier int ctlfd; 184*8ccd4a63SDavid du Colombier int imageid; 185*8ccd4a63SDavid du Colombier int local; 186*8ccd4a63SDavid du Colombier void (*error)(Display*, char*); 187*8ccd4a63SDavid du Colombier char *devdir; 188*8ccd4a63SDavid du Colombier char *windir; 189*8ccd4a63SDavid du Colombier char oldlabel[64]; 190*8ccd4a63SDavid du Colombier ulong dataqid; 191*8ccd4a63SDavid du Colombier Image *white; 192*8ccd4a63SDavid du Colombier Image *black; 193*8ccd4a63SDavid du Colombier Image *opaque; 194*8ccd4a63SDavid du Colombier Image *transparent; 195*8ccd4a63SDavid du Colombier Image *image; 196*8ccd4a63SDavid du Colombier uchar *buf; 197*8ccd4a63SDavid du Colombier int bufsize; 198*8ccd4a63SDavid du Colombier uchar *bufp; 199*8ccd4a63SDavid du Colombier Font *defaultfont; 200*8ccd4a63SDavid du Colombier Subfont *defaultsubfont; 201*8ccd4a63SDavid du Colombier Image *windows; 202*8ccd4a63SDavid du Colombier Image *screenimage; 203*8ccd4a63SDavid du Colombier int _isnewdisplay; 204*8ccd4a63SDavid du Colombier }; 205*8ccd4a63SDavid du Colombier 206*8ccd4a63SDavid du Colombier struct Image 207*8ccd4a63SDavid du Colombier { 208*8ccd4a63SDavid du Colombier Display *display; /* display holding data */ 209*8ccd4a63SDavid du Colombier int id; /* id of system-held Image */ 210*8ccd4a63SDavid du Colombier Rectangle r; /* rectangle in data area, local coords */ 211*8ccd4a63SDavid du Colombier Rectangle clipr; /* clipping region */ 212*8ccd4a63SDavid du Colombier int depth; /* number of bits per pixel */ 213*8ccd4a63SDavid du Colombier ulong chan; 214*8ccd4a63SDavid du Colombier int repl; /* flag: data replicates to tile clipr */ 215*8ccd4a63SDavid du Colombier Screen *screen; /* 0 if not a window */ 216*8ccd4a63SDavid du Colombier Image *next; /* next in list of windows */ 217*8ccd4a63SDavid du Colombier }; 218*8ccd4a63SDavid du Colombier 219*8ccd4a63SDavid du Colombier struct RGB 220*8ccd4a63SDavid du Colombier { 221*8ccd4a63SDavid du Colombier ulong red; 222*8ccd4a63SDavid du Colombier ulong green; 223*8ccd4a63SDavid du Colombier ulong blue; 224*8ccd4a63SDavid du Colombier }; 225*8ccd4a63SDavid du Colombier 226*8ccd4a63SDavid du Colombier /* 227*8ccd4a63SDavid du Colombier * Subfonts 228*8ccd4a63SDavid du Colombier * 229*8ccd4a63SDavid du Colombier * given char c, Subfont *f, Fontchar *i, and Point p, one says 230*8ccd4a63SDavid du Colombier * i = f->info+c; 231*8ccd4a63SDavid du Colombier * draw(b, Rect(p.x+i->left, p.y+i->top, 232*8ccd4a63SDavid du Colombier * p.x+i->left+((i+1)->x-i->x), p.y+i->bottom), 233*8ccd4a63SDavid du Colombier * color, f->bits, Pt(i->x, i->top)); 234*8ccd4a63SDavid du Colombier * p.x += i->width; 235*8ccd4a63SDavid du Colombier * to draw characters in the specified color (itself an Image) in Image b. 236*8ccd4a63SDavid du Colombier */ 237*8ccd4a63SDavid du Colombier 238*8ccd4a63SDavid du Colombier struct Fontchar 239*8ccd4a63SDavid du Colombier { 240*8ccd4a63SDavid du Colombier int x; /* left edge of bits */ 241*8ccd4a63SDavid du Colombier uchar top; /* first non-zero scan-line */ 242*8ccd4a63SDavid du Colombier uchar bottom; /* last non-zero scan-line + 1 */ 243*8ccd4a63SDavid du Colombier char left; /* offset of baseline */ 244*8ccd4a63SDavid du Colombier uchar width; /* width of baseline */ 245*8ccd4a63SDavid du Colombier }; 246*8ccd4a63SDavid du Colombier 247*8ccd4a63SDavid du Colombier struct Subfont 248*8ccd4a63SDavid du Colombier { 249*8ccd4a63SDavid du Colombier char *name; 250*8ccd4a63SDavid du Colombier short n; /* number of chars in font */ 251*8ccd4a63SDavid du Colombier uchar height; /* height of image */ 252*8ccd4a63SDavid du Colombier char ascent; /* top of image to baseline */ 253*8ccd4a63SDavid du Colombier Fontchar *info; /* n+1 character descriptors */ 254*8ccd4a63SDavid du Colombier Image *bits; /* of font */ 255*8ccd4a63SDavid du Colombier int ref; 256*8ccd4a63SDavid du Colombier }; 257*8ccd4a63SDavid du Colombier 258*8ccd4a63SDavid du Colombier enum 259*8ccd4a63SDavid du Colombier { 260*8ccd4a63SDavid du Colombier /* starting values */ 261*8ccd4a63SDavid du Colombier LOG2NFCACHE = 6, 262*8ccd4a63SDavid du Colombier NFCACHE = (1<<LOG2NFCACHE), /* #chars cached */ 263*8ccd4a63SDavid du Colombier NFLOOK = 5, /* #chars to scan in cache */ 264*8ccd4a63SDavid du Colombier NFSUBF = 2, /* #subfonts to cache */ 265*8ccd4a63SDavid du Colombier /* max value */ 266*8ccd4a63SDavid du Colombier MAXFCACHE = 1024+NFLOOK, /* upper limit */ 267*8ccd4a63SDavid du Colombier MAXSUBF = 50, /* generous upper limit */ 268*8ccd4a63SDavid du Colombier /* deltas */ 269*8ccd4a63SDavid du Colombier DSUBF = 4, 270*8ccd4a63SDavid du Colombier /* expiry ages */ 271*8ccd4a63SDavid du Colombier SUBFAGE = 10000, 272*8ccd4a63SDavid du Colombier CACHEAGE = 10000 273*8ccd4a63SDavid du Colombier }; 274*8ccd4a63SDavid du Colombier 275*8ccd4a63SDavid du Colombier struct Cachefont 276*8ccd4a63SDavid du Colombier { 277*8ccd4a63SDavid du Colombier Rune min; /* lowest rune value to be taken from subfont */ 278*8ccd4a63SDavid du Colombier Rune max; /* highest rune value+1 to be taken from subfont */ 279*8ccd4a63SDavid du Colombier int offset; /* position in subfont of character at min */ 280*8ccd4a63SDavid du Colombier char *name; /* stored in font */ 281*8ccd4a63SDavid du Colombier char *subfontname; /* to access subfont */ 282*8ccd4a63SDavid du Colombier }; 283*8ccd4a63SDavid du Colombier 284*8ccd4a63SDavid du Colombier struct Cacheinfo 285*8ccd4a63SDavid du Colombier { 286*8ccd4a63SDavid du Colombier ushort x; /* left edge of bits */ 287*8ccd4a63SDavid du Colombier uchar width; /* width of baseline */ 288*8ccd4a63SDavid du Colombier schar left; /* offset of baseline */ 289*8ccd4a63SDavid du Colombier Rune value; /* value of character at this slot in cache */ 290*8ccd4a63SDavid du Colombier ushort age; 291*8ccd4a63SDavid du Colombier }; 292*8ccd4a63SDavid du Colombier 293*8ccd4a63SDavid du Colombier struct Cachesubf 294*8ccd4a63SDavid du Colombier { 295*8ccd4a63SDavid du Colombier ulong age; /* for replacement */ 296*8ccd4a63SDavid du Colombier Cachefont *cf; /* font info that owns us */ 297*8ccd4a63SDavid du Colombier Subfont *f; /* attached subfont */ 298*8ccd4a63SDavid du Colombier }; 299*8ccd4a63SDavid du Colombier 300*8ccd4a63SDavid du Colombier struct Font 301*8ccd4a63SDavid du Colombier { 302*8ccd4a63SDavid du Colombier char *name; 303*8ccd4a63SDavid du Colombier Display *display; 304*8ccd4a63SDavid du Colombier short height; /* max height of image, interline spacing */ 305*8ccd4a63SDavid du Colombier short ascent; /* top of image to baseline */ 306*8ccd4a63SDavid du Colombier short width; /* widest so far; used in caching only */ 307*8ccd4a63SDavid du Colombier short nsub; /* number of subfonts */ 308*8ccd4a63SDavid du Colombier ulong age; /* increasing counter; used for LRU */ 309*8ccd4a63SDavid du Colombier int maxdepth; /* maximum depth of all loaded subfonts */ 310*8ccd4a63SDavid du Colombier int ncache; /* size of cache */ 311*8ccd4a63SDavid du Colombier int nsubf; /* size of subfont list */ 312*8ccd4a63SDavid du Colombier Cacheinfo *cache; 313*8ccd4a63SDavid du Colombier Cachesubf *subf; 314*8ccd4a63SDavid du Colombier Cachefont **sub; /* as read from file */ 315*8ccd4a63SDavid du Colombier Image *cacheimage; 316*8ccd4a63SDavid du Colombier }; 317*8ccd4a63SDavid du Colombier 318*8ccd4a63SDavid du Colombier #define Dx(r) ((r).max.x-(r).min.x) 319*8ccd4a63SDavid du Colombier #define Dy(r) ((r).max.y-(r).min.y) 320*8ccd4a63SDavid du Colombier 321*8ccd4a63SDavid du Colombier /* 322*8ccd4a63SDavid du Colombier * Image management 323*8ccd4a63SDavid du Colombier */ 324*8ccd4a63SDavid du Colombier extern Image* _allocimage(Image*, Display*, Rectangle, ulong, int, ulong, int, int); 325*8ccd4a63SDavid du Colombier extern Image* allocimage(Display*, Rectangle, ulong, int, ulong); 326*8ccd4a63SDavid du Colombier extern uchar* bufimage(Display*, int); 327*8ccd4a63SDavid du Colombier extern int bytesperline(Rectangle, int); 328*8ccd4a63SDavid du Colombier extern void closedisplay(Display*); 329*8ccd4a63SDavid du Colombier extern void drawerror(Display*, char*); 330*8ccd4a63SDavid du Colombier extern int flushimage(Display*, int); 331*8ccd4a63SDavid du Colombier extern int freeimage(Image*); 332*8ccd4a63SDavid du Colombier extern int _freeimage1(Image*); 333*8ccd4a63SDavid du Colombier extern int geninitdraw(char*, void(*)(Display*, char*), char*, char*, char*, int); 334*8ccd4a63SDavid du Colombier extern int initdraw(void(*)(Display*, char*), char*, char*); 335*8ccd4a63SDavid du Colombier extern int newwindow(char*); 336*8ccd4a63SDavid du Colombier extern Display* initdisplay(char*, char*, void(*)(Display*, char*)); 337*8ccd4a63SDavid du Colombier extern int loadimage(Image*, Rectangle, uchar*, int); 338*8ccd4a63SDavid du Colombier extern int cloadimage(Image*, Rectangle, uchar*, int); 339*8ccd4a63SDavid du Colombier extern int getwindow(Display*, int); 340*8ccd4a63SDavid du Colombier extern int gengetwindow(Display*, char*, Image**, Screen**, int); 341*8ccd4a63SDavid du Colombier extern Image* readimage(Display*, int, int); 342*8ccd4a63SDavid du Colombier extern Image* creadimage(Display*, int, int); 343*8ccd4a63SDavid du Colombier extern int unloadimage(Image*, Rectangle, uchar*, int); 344*8ccd4a63SDavid du Colombier extern int wordsperline(Rectangle, int); 345*8ccd4a63SDavid du Colombier extern int writeimage(int, Image*, int); 346*8ccd4a63SDavid du Colombier extern Image* namedimage(Display*, char*); 347*8ccd4a63SDavid du Colombier extern int nameimage(Image*, char*, int); 348*8ccd4a63SDavid du Colombier extern Image* allocimagemix(Display*, ulong, ulong); 349*8ccd4a63SDavid du Colombier 350*8ccd4a63SDavid du Colombier /* 351*8ccd4a63SDavid du Colombier * Colors 352*8ccd4a63SDavid du Colombier */ 353*8ccd4a63SDavid du Colombier extern void readcolmap(Display*, RGB*); 354*8ccd4a63SDavid du Colombier extern void writecolmap(Display*, RGB*); 355*8ccd4a63SDavid du Colombier extern ulong setalpha(ulong, uchar); 356*8ccd4a63SDavid du Colombier 357*8ccd4a63SDavid du Colombier /* 358*8ccd4a63SDavid du Colombier * Windows 359*8ccd4a63SDavid du Colombier */ 360*8ccd4a63SDavid du Colombier extern Screen* allocscreen(Image*, Image*, int); 361*8ccd4a63SDavid du Colombier extern Image* _allocwindow(Image*, Screen*, Rectangle, int, ulong); 362*8ccd4a63SDavid du Colombier extern Image* allocwindow(Screen*, Rectangle, int, ulong); 363*8ccd4a63SDavid du Colombier extern void bottomnwindows(Image**, int); 364*8ccd4a63SDavid du Colombier extern void bottomwindow(Image*); 365*8ccd4a63SDavid du Colombier extern int freescreen(Screen*); 366*8ccd4a63SDavid du Colombier extern Screen* publicscreen(Display*, int, ulong); 367*8ccd4a63SDavid du Colombier extern void topnwindows(Image**, int); 368*8ccd4a63SDavid du Colombier extern void topwindow(Image*); 369*8ccd4a63SDavid du Colombier extern int originwindow(Image*, Point, Point); 370*8ccd4a63SDavid du Colombier 371*8ccd4a63SDavid du Colombier /* 372*8ccd4a63SDavid du Colombier * Geometry 373*8ccd4a63SDavid du Colombier */ 374*8ccd4a63SDavid du Colombier extern Point Pt(int, int); 375*8ccd4a63SDavid du Colombier extern Rectangle Rect(int, int, int, int); 376*8ccd4a63SDavid du Colombier extern Rectangle Rpt(Point, Point); 377*8ccd4a63SDavid du Colombier extern Point addpt(Point, Point); 378*8ccd4a63SDavid du Colombier extern Point subpt(Point, Point); 379*8ccd4a63SDavid du Colombier extern Point divpt(Point, int); 380*8ccd4a63SDavid du Colombier extern Point mulpt(Point, int); 381*8ccd4a63SDavid du Colombier extern int eqpt(Point, Point); 382*8ccd4a63SDavid du Colombier extern int eqrect(Rectangle, Rectangle); 383*8ccd4a63SDavid du Colombier extern Rectangle insetrect(Rectangle, int); 384*8ccd4a63SDavid du Colombier extern Rectangle rectaddpt(Rectangle, Point); 385*8ccd4a63SDavid du Colombier extern Rectangle rectsubpt(Rectangle, Point); 386*8ccd4a63SDavid du Colombier extern Rectangle canonrect(Rectangle); 387*8ccd4a63SDavid du Colombier extern int rectXrect(Rectangle, Rectangle); 388*8ccd4a63SDavid du Colombier extern int rectinrect(Rectangle, Rectangle); 389*8ccd4a63SDavid du Colombier extern void combinerect(Rectangle*, Rectangle); 390*8ccd4a63SDavid du Colombier extern int rectclip(Rectangle*, Rectangle); 391*8ccd4a63SDavid du Colombier extern int ptinrect(Point, Rectangle); 392*8ccd4a63SDavid du Colombier extern void replclipr(Image*, int, Rectangle); 393*8ccd4a63SDavid du Colombier extern int drawreplxy(int, int, int); /* used to be drawsetxy */ 394*8ccd4a63SDavid du Colombier extern Point drawrepl(Rectangle, Point); 395*8ccd4a63SDavid du Colombier extern int rgb2cmap(int, int, int); 396*8ccd4a63SDavid du Colombier extern int cmap2rgb(int); 397*8ccd4a63SDavid du Colombier extern int cmap2rgba(int); 398*8ccd4a63SDavid du Colombier extern void icossin(int, int*, int*); 399*8ccd4a63SDavid du Colombier extern void icossin2(int, int, int*, int*); 400*8ccd4a63SDavid du Colombier 401*8ccd4a63SDavid du Colombier /* 402*8ccd4a63SDavid du Colombier * Graphics 403*8ccd4a63SDavid du Colombier */ 404*8ccd4a63SDavid du Colombier extern void draw(Image*, Rectangle, Image*, Image*, Point); 405*8ccd4a63SDavid du Colombier extern void drawop(Image*, Rectangle, Image*, Image*, Point, Drawop); 406*8ccd4a63SDavid du Colombier extern void gendraw(Image*, Rectangle, Image*, Point, Image*, Point); 407*8ccd4a63SDavid du Colombier extern void gendrawop(Image*, Rectangle, Image*, Point, Image*, Point, Drawop); 408*8ccd4a63SDavid du Colombier extern void line(Image*, Point, Point, int, int, int, Image*, Point); 409*8ccd4a63SDavid du Colombier extern void lineop(Image*, Point, Point, int, int, int, Image*, Point, Drawop); 410*8ccd4a63SDavid du Colombier extern void poly(Image*, Point*, int, int, int, int, Image*, Point); 411*8ccd4a63SDavid du Colombier extern void polyop(Image*, Point*, int, int, int, int, Image*, Point, Drawop); 412*8ccd4a63SDavid du Colombier extern void fillpoly(Image*, Point*, int, int, Image*, Point); 413*8ccd4a63SDavid du Colombier extern void fillpolyop(Image*, Point*, int, int, Image*, Point, Drawop); 414*8ccd4a63SDavid du Colombier extern Point string(Image*, Point, Image*, Point, Font*, char*); 415*8ccd4a63SDavid du Colombier extern Point stringop(Image*, Point, Image*, Point, Font*, char*, Drawop); 416*8ccd4a63SDavid du Colombier extern Point stringn(Image*, Point, Image*, Point, Font*, char*, int); 417*8ccd4a63SDavid du Colombier extern Point stringnop(Image*, Point, Image*, Point, Font*, char*, int, Drawop); 418*8ccd4a63SDavid du Colombier extern Point runestring(Image*, Point, Image*, Point, Font*, Rune*); 419*8ccd4a63SDavid du Colombier extern Point runestringop(Image*, Point, Image*, Point, Font*, Rune*, Drawop); 420*8ccd4a63SDavid du Colombier extern Point runestringn(Image*, Point, Image*, Point, Font*, Rune*, int); 421*8ccd4a63SDavid du Colombier extern Point runestringnop(Image*, Point, Image*, Point, Font*, Rune*, int, Drawop); 422*8ccd4a63SDavid du Colombier extern Point stringbg(Image*, Point, Image*, Point, Font*, char*, Image*, Point); 423*8ccd4a63SDavid du Colombier extern Point stringbgop(Image*, Point, Image*, Point, Font*, char*, Image*, Point, Drawop); 424*8ccd4a63SDavid du Colombier extern Point stringnbg(Image*, Point, Image*, Point, Font*, char*, int, Image*, Point); 425*8ccd4a63SDavid du Colombier extern Point stringnbgop(Image*, Point, Image*, Point, Font*, char*, int, Image*, Point, Drawop); 426*8ccd4a63SDavid du Colombier extern Point runestringbg(Image*, Point, Image*, Point, Font*, Rune*, Image*, Point); 427*8ccd4a63SDavid du Colombier extern Point runestringbgop(Image*, Point, Image*, Point, Font*, Rune*, Image*, Point, Drawop); 428*8ccd4a63SDavid du Colombier extern Point runestringnbg(Image*, Point, Image*, Point, Font*, Rune*, int, Image*, Point); 429*8ccd4a63SDavid du Colombier extern Point runestringnbgop(Image*, Point, Image*, Point, Font*, Rune*, int, Image*, Point, Drawop); 430*8ccd4a63SDavid du Colombier extern Point _string(Image*, Point, Image*, Point, Font*, char*, Rune*, int, Rectangle, Image*, Point, Drawop); 431*8ccd4a63SDavid du Colombier extern Point stringsubfont(Image*, Point, Image*, Subfont*, char*); 432*8ccd4a63SDavid du Colombier extern int bezier(Image*, Point, Point, Point, Point, int, int, int, Image*, Point); 433*8ccd4a63SDavid du Colombier extern int bezierop(Image*, Point, Point, Point, Point, int, int, int, Image*, Point, Drawop); 434*8ccd4a63SDavid du Colombier extern int bezspline(Image*, Point*, int, int, int, int, Image*, Point); 435*8ccd4a63SDavid du Colombier extern int bezsplineop(Image*, Point*, int, int, int, int, Image*, Point, Drawop); 436*8ccd4a63SDavid du Colombier extern int bezsplinepts(Point*, int, Point**); 437*8ccd4a63SDavid du Colombier extern int fillbezier(Image*, Point, Point, Point, Point, int, Image*, Point); 438*8ccd4a63SDavid du Colombier extern int fillbezierop(Image*, Point, Point, Point, Point, int, Image*, Point, Drawop); 439*8ccd4a63SDavid du Colombier extern int fillbezspline(Image*, Point*, int, int, Image*, Point); 440*8ccd4a63SDavid du Colombier extern int fillbezsplineop(Image*, Point*, int, int, Image*, Point, Drawop); 441*8ccd4a63SDavid du Colombier extern void ellipse(Image*, Point, int, int, int, Image*, Point); 442*8ccd4a63SDavid du Colombier extern void ellipseop(Image*, Point, int, int, int, Image*, Point, Drawop); 443*8ccd4a63SDavid du Colombier extern void fillellipse(Image*, Point, int, int, Image*, Point); 444*8ccd4a63SDavid du Colombier extern void fillellipseop(Image*, Point, int, int, Image*, Point, Drawop); 445*8ccd4a63SDavid du Colombier extern void arc(Image*, Point, int, int, int, Image*, Point, int, int); 446*8ccd4a63SDavid du Colombier extern void arcop(Image*, Point, int, int, int, Image*, Point, int, int, Drawop); 447*8ccd4a63SDavid du Colombier extern void fillarc(Image*, Point, int, int, Image*, Point, int, int); 448*8ccd4a63SDavid du Colombier extern void fillarcop(Image*, Point, int, int, Image*, Point, int, int, Drawop); 449*8ccd4a63SDavid du Colombier extern void border(Image*, Rectangle, int, Image*, Point); 450*8ccd4a63SDavid du Colombier extern void borderop(Image*, Rectangle, int, Image*, Point, Drawop); 451*8ccd4a63SDavid du Colombier 452*8ccd4a63SDavid du Colombier /* 453*8ccd4a63SDavid du Colombier * Font management 454*8ccd4a63SDavid du Colombier */ 455*8ccd4a63SDavid du Colombier extern Font* openfont(Display*, char*); 456*8ccd4a63SDavid du Colombier extern Font* buildfont(Display*, char*, char*); 457*8ccd4a63SDavid du Colombier extern void freefont(Font*); 458*8ccd4a63SDavid du Colombier extern Font* mkfont(Subfont*, Rune); 459*8ccd4a63SDavid du Colombier extern int cachechars(Font*, char**, Rune**, ushort*, int, int*, char**); 460*8ccd4a63SDavid du Colombier extern void agefont(Font*); 461*8ccd4a63SDavid du Colombier extern Subfont* allocsubfont(char*, int, int, int, Fontchar*, Image*); 462*8ccd4a63SDavid du Colombier extern Subfont* lookupsubfont(Display*, char*); 463*8ccd4a63SDavid du Colombier extern void installsubfont(char*, Subfont*); 464*8ccd4a63SDavid du Colombier extern void uninstallsubfont(Subfont*); 465*8ccd4a63SDavid du Colombier extern void freesubfont(Subfont*); 466*8ccd4a63SDavid du Colombier extern Subfont* readsubfont(Display*, char*, int, int); 467*8ccd4a63SDavid du Colombier extern Subfont* readsubfonti(Display*, char*, int, Image*, int); 468*8ccd4a63SDavid du Colombier extern int writesubfont(int, Subfont*); 469*8ccd4a63SDavid du Colombier extern void _unpackinfo(Fontchar*, uchar*, int); 470*8ccd4a63SDavid du Colombier extern Point stringsize(Font*, char*); 471*8ccd4a63SDavid du Colombier extern int stringwidth(Font*, char*); 472*8ccd4a63SDavid du Colombier extern int stringnwidth(Font*, char*, int); 473*8ccd4a63SDavid du Colombier extern Point runestringsize(Font*, Rune*); 474*8ccd4a63SDavid du Colombier extern int runestringwidth(Font*, Rune*); 475*8ccd4a63SDavid du Colombier extern int runestringnwidth(Font*, Rune*, int); 476*8ccd4a63SDavid du Colombier extern Point strsubfontwidth(Subfont*, char*); 477*8ccd4a63SDavid du Colombier extern int loadchar(Font*, Rune, Cacheinfo*, int, int, char**); 478*8ccd4a63SDavid du Colombier extern char* subfontname(char*, char*, int); 479*8ccd4a63SDavid du Colombier extern Subfont* _getsubfont(Display*, char*); 480*8ccd4a63SDavid du Colombier extern Subfont* getdefont(Display*); 481*8ccd4a63SDavid du Colombier extern void lockdisplay(Display*); 482*8ccd4a63SDavid du Colombier extern void unlockdisplay(Display*); 483*8ccd4a63SDavid du Colombier extern int drawlsetrefresh(ulong, int, void*, void*); 484*8ccd4a63SDavid du Colombier 485*8ccd4a63SDavid du Colombier /* 486*8ccd4a63SDavid du Colombier * Predefined 487*8ccd4a63SDavid du Colombier */ 488*8ccd4a63SDavid du Colombier extern uchar defontdata[]; 489*8ccd4a63SDavid du Colombier extern int sizeofdefont; 490*8ccd4a63SDavid du Colombier extern Point ZP; 491*8ccd4a63SDavid du Colombier extern Rectangle ZR; 492*8ccd4a63SDavid du Colombier 493*8ccd4a63SDavid du Colombier /* 494*8ccd4a63SDavid du Colombier * Set up by initdraw() 495*8ccd4a63SDavid du Colombier */ 496*8ccd4a63SDavid du Colombier extern Display *display; 497*8ccd4a63SDavid du Colombier extern Font *font; 498*8ccd4a63SDavid du Colombier /* extern Image *screen; */ 499*8ccd4a63SDavid du Colombier extern Screen *_screen; 500*8ccd4a63SDavid du Colombier extern int _cursorfd; 501*8ccd4a63SDavid du Colombier extern int _drawdebug; /* set to 1 to see errors from flushimage */ 502*8ccd4a63SDavid du Colombier extern void _setdrawop(Display*, Drawop); 503*8ccd4a63SDavid du Colombier 504*8ccd4a63SDavid du Colombier #define BGSHORT(p) (((p)[0]<<0) | ((p)[1]<<8)) 505*8ccd4a63SDavid du Colombier #define BGLONG(p) ((BGSHORT(p)<<0) | (BGSHORT(p+2)<<16)) 506*8ccd4a63SDavid du Colombier #define BPSHORT(p, v) ((p)[0]=(v), (p)[1]=((v)>>8)) 507*8ccd4a63SDavid du Colombier #define BPLONG(p, v) (BPSHORT(p, (v)), BPSHORT(p+2, (v)>>16)) 508*8ccd4a63SDavid du Colombier 509*8ccd4a63SDavid du Colombier /* 510*8ccd4a63SDavid du Colombier * Compressed image file parameters and helper routines 511*8ccd4a63SDavid du Colombier */ 512*8ccd4a63SDavid du Colombier #define NMATCH 3 /* shortest match possible */ 513*8ccd4a63SDavid du Colombier #define NRUN (NMATCH+31) /* longest match possible */ 514*8ccd4a63SDavid du Colombier #define NMEM 1024 /* window size */ 515*8ccd4a63SDavid du Colombier #define NDUMP 128 /* maximum length of dump */ 516*8ccd4a63SDavid du Colombier #define NCBLOCK 6000 /* size of compressed blocks */ 517*8ccd4a63SDavid du Colombier extern void _twiddlecompressed(uchar*, int); 518*8ccd4a63SDavid du Colombier extern int _compblocksize(Rectangle, int); 519*8ccd4a63SDavid du Colombier 520*8ccd4a63SDavid du Colombier /* XXX backwards helps; should go */ 521*8ccd4a63SDavid du Colombier extern int log2[]; 522*8ccd4a63SDavid du Colombier extern ulong drawld2chan[]; 523*8ccd4a63SDavid du Colombier extern void drawsetdebug(int); 524