1 files changed, 168 insertions, 0 deletions
diff --git a/sys/include/ttf.h b/sys/include/ttf.h
new file mode 100644
index 000000000..560aefe4f
--- /dev/null
+++ b/sys/include/ttf.h
@@ -0,0 +1,168 @@
+#pragma src "/sys/src/libttf"
+#pragma lib "libttf.a"
+
+typedef struct TTTable TTTable;
+typedef struct TTChMap TTChMap;
+typedef struct TTPoint TTPoint;
+typedef struct TTGlyph TTGlyph;
+typedef struct TTGlyphInfo TTGlyphInfo;
+typedef struct TTFontU TTFontU;
+typedef struct TTFont TTFont;
+typedef struct TTFunction TTFunction;
+typedef struct TTGState TTGState;
+typedef struct TTBitmap TTBitmap;
+typedef struct TTKern TTKern;
+typedef struct Biobuf Biobuf;
+
+struct TTTable {
+	u32int tag;
+	u32int csum;
+	u32int offset;
+	u32int len;
+};
+struct TTChMap {
+	int start, end, delta;
+	int *tab;
+	enum {
+		TTCDELTA16 = 1,
+		TTCINVALID = 2,
+	} flags;
+	int temp;
+};
+struct TTPoint {
+	int x, y;
+	u8int flags;
+};
+struct TTBitmap {
+	u8int *bit;
+	int width, height, stride;
+};
+struct TTGlyph {
+	TTBitmap;
+	int idx;
+	int xmin, xmax, ymin, ymax;
+	int xminpx, xmaxpx, yminpx, ymaxpx;
+	int advanceWidthpx;
+	TTPoint *pt;
+	TTPoint *ptorg;
+	int npt;
+	u16int *confst;
+	int ncon;
+	u8int *hint;
+	int nhint;
+	TTFont *font;
+	TTGlyphInfo *info;
+};
+struct TTGlyphInfo {
+	int loca;
+	u16int advanceWidth;
+	short lsb;
+};
+struct TTFunction {
+	u8int *pgm;
+	int npgm;
+};
+struct TTGState {
+	int pvx, pvy;
+	int dpvx, dpvy;
+	int fvx, fvy;
+	u32int instctrl;
+	u32int scanctrl;
+	u32int scantype;
+	int rperiod, rphase, rthold;
+	u8int zp;
+	int rp[3];
+	int cvci;
+	int loop;
+	int mindist;
+	int deltabase, deltashift;
+	u8int autoflip;
+	u32int singlewval, singlewci;
+};
+struct TTKern {
+	u32int idx;
+	int val;
+};
+struct TTFontU {
+	int ref;
+
+	Biobuf *bin;
+
+	TTTable *tab;
+	u16int ntab;
+	
+	TTChMap *cmap;
+	int ncmap;
+	
+	short *cvtu;
+	int ncvtu;
+
+	u16int flags;
+	int emsize;
+	short xmin, ymin, xmax, ymax;
+	u16int longloca;
+	
+	TTGlyphInfo *ginfo;
+	
+	u16int numGlyphs;
+	u16int maxPoints;
+	u16int maxCountours;
+	u16int maxComponentPoints;
+	u16int maxComponentCountours;
+	u16int maxZones;
+	u16int maxTwilightPoints;
+	u16int maxStorage;
+	u16int maxFunctionDefs;
+	u16int maxInstructionDefs;
+	u16int maxStackElements;
+	u16int maxSizeOfInstructions;
+	u16int maxComponentElements;
+	u16int maxComponentDepth;
+	
+	int ascent, descent;
+	
+	u16int advanceWidthMax;
+	u16int minLeftSideBearing;
+	u16int minRightSideBearing;
+	u16int xMaxExtent;
+	u16int numOfLongHorMetrics;
+	
+	TTKern *kern;
+	int nkern;
+};
+struct TTFont {
+	TTFontU *u;
+	int ascentpx, descentpx;
+	int ppem;
+	TTGState;
+	TTGState defstate;
+	TTPoint *twilight, *twiorg;
+	u32int *hintstack;
+	TTFunction *func;
+	u32int *storage;
+	int *cvt;
+	int ncvt;
+};
+
+TTFont *ttfopen(char *, int, int);
+TTFont *ttfscale(TTFont *, int, int);
+void ttfclose(TTFont *);
+int ttffindchar(TTFont *, Rune);
+int ttfenumchar(TTFont *, Rune, Rune *);
+TTGlyph *ttfgetglyph(TTFont *, int, int);
+void ttfputglyph(TTGlyph *);
+int ttfgetcontour(TTGlyph *, int, float **, int *);
+
+enum {
+	TTFLALIGN = 0,
+	TTFRALIGN = 1,
+	TTFCENTER = 2,
+	TTFMODE = 3,
+	TTFJUSTIFY = 4,
+};
+
+TTBitmap *ttfrender(TTFont *, char *, char *, int, int, int, char **);
+TTBitmap *ttfrunerender(TTFont *, Rune *, Rune *, int, int, int, Rune **);
+TTBitmap *ttfnewbitmap(int, int);
+void ttffreebitmap(TTBitmap *);
+void ttfblit(TTBitmap *, int, int, TTBitmap *, int, int, int, int);