1 #ifndef __gfxdevice_h__
2 #define __gfxdevice_h__
8 #define GFX_SUBPIXEL 2560
10 typedef double gfxcoord_t;
12 typedef enum {gfx_moveTo, gfx_lineTo, gfx_splineTo} gfx_linetype;
13 typedef enum {gfx_joinMiter, gfx_joinRound, gfx_joinBevel} gfx_joinType;
14 typedef enum {gfx_capButt, gfx_capRound, gfx_capSquare} gfx_capType;
16 typedef struct _gfxline
21 struct _gfxline*next; /*NULL=end*/
24 typedef struct _gfxglyph
29 int unicode; // array?
33 typedef struct _gfxkerning
38 typedef struct _gfxfont
44 double ascent,descent;
53 typedef struct _gfxcolor
61 typedef struct _gfxmatrix
67 typedef struct _gfximage
69 /* if the data contains an alpha layer (a != 255), the
70 r,g,b values will have to be premultiplied */
76 /* gradients: A radial gradient will start at 0,0 and have a radius of 1,0
77 An axial gradient starts at -1,0 and ends at 1,0
79 typedef enum {gfxgradient_radial, gfxgradient_linear} gfxgradienttype_t;
80 typedef struct _gfxgradient
83 float pos; // 0.0 - 1.0
84 struct _gfxgradient*next; //NULL=end
87 typedef struct _gfxcxform
89 float rr,rg,rb,ra, tr;
90 float gr,gg,gb,ga, tg;
91 float br,bg,bb,ba, tb;
92 float ar,ag,ab,aa, ta;
95 typedef struct _gfxbbox
97 gfxcoord_t xmin, ymin, xmax, ymax;
100 typedef struct _gfxresult
102 void (*write)(struct _gfxresult*gfx, int filedesc);
103 int (*save)(struct _gfxresult*gfx, const char*filename);
104 void* (*get)(struct _gfxresult*gfx, const char*name);
105 void (*destroy)(struct _gfxresult*gfx);
110 typedef struct _gfxdevice
112 const char* name; // gfx device name
114 int (*setparameter)(struct _gfxdevice*dev, const char*key, const char*value);
116 void (*startpage)(struct _gfxdevice*dev, int width, int height);
118 void (*startclip)(struct _gfxdevice*dev, gfxline_t*line);
119 void (*endclip)(struct _gfxdevice*dev);
120 void (*stroke)(struct _gfxdevice*dev, gfxline_t*line, gfxcoord_t width, gfxcolor_t*color, gfx_capType cap_style, gfx_joinType joint_style, gfxcoord_t miterLimit);
121 void (*fill)(struct _gfxdevice*dev, gfxline_t*line, gfxcolor_t*color);
123 /* expects alpha channel in image to be non-premultiplied */
124 void (*fillbitmap)(struct _gfxdevice*dev, gfxline_t*line, gfximage_t*img, gfxmatrix_t*imgcoord2devcoord, gfxcxform_t*cxform); //cxform? tiling?
126 void (*fillgradient)(struct _gfxdevice*dev, gfxline_t*line, gfxgradient_t*gradient, gfxgradienttype_t type, gfxmatrix_t*gradcoord2devcoord); //?
128 void (*addfont)(struct _gfxdevice*dev, gfxfont_t*font);
130 void (*drawchar)(struct _gfxdevice*dev, gfxfont_t*font, int glyph, gfxcolor_t*color, gfxmatrix_t*matrix);
132 void (*drawlink)(struct _gfxdevice*dev, gfxline_t*line, const char*action);
134 void (*endpage)(struct _gfxdevice*dev);
136 const char* (*geterror)();
138 gfxresult_t* (*finish)(struct _gfxdevice*dev);
147 #endif //__gfxdevice_h__