initial revision

diff --git a/lib/gfxdevice.h b/lib/gfxdevice.h
new file mode 100644 (file)
index 0000000..edcd306
--- /dev/null
+++ b/lib/gfxdevice.h
@@ -0,0 +1,101 @@
+#define GFX_SUBPIXEL 2560
+
+typedef float gfxcoord_t;
+    
+typedef enum {gfx_moveTo, gfx_lineTo, gfx_splineTo} gfx_linetype;
+
+typedef struct _gfxline
+{
+    gfx_linetype type;
+    gfxcoord_t x,y;
+    gfxcoord_t sx,sy;
+    struct _gfxline*next; /*NULL=end*/
+} gfxline_t;
+
+typedef struct _gfxglyph
+{
+    gfxline_t*line;
+    gfxcoord_t advance;
+
+    int unicode; // array?
+    char*name;
+} gfxglyph_t;
+
+typedef struct _gfxfont
+{
+    char*name;
+    int num_glyphs;
+    int max_unicode;
+    gfxglyph_t*glyphs;
+    int* unicode2glyph;
+} gfxfont_t;
+
+typedef struct _gfxcolor
+{
+    unsigned char a;
+    unsigned char r;
+    unsigned char g;
+    unsigned char b;
+} gfxcolor_t;
+
+typedef struct _gfxmatrix
+{
+    float m00,m10,tx;
+    float m01,m11,ty;
+} gfxmatrix_t;
+
+typedef struct _gfximage
+{
+    gfxcolor_t*data;
+    int width;
+    int height;
+} gfximage_t;
+
+typedef enum {gfxgradient_radial, gfxgradient_linear} gfxgradienttype_t;
+
+typedef struct _gfxgradient
+{
+    gfxcolor_t color;
+    float pos; // 0.0 - 1.0
+    struct _gfxgradient*next; //NULL=end
+} gfxgradient_t;
+
+typedef struct _gfxcxform
+{
+    float rr,rg,rb,ra;
+    float gr,gg,gb,ga;
+    float br,bg,bb,ba;
+    float ar,ag,ab,aa;
+    gfxcolor_t t;
+} gfxcxform_t;
+
+typedef struct _gfxbbox
+{
+    gfxcoord_t xmin, ymin, xmax, ymax;
+} gfxbbox_t;
+
+typedef struct _gfxdevice
+{
+    int (*setparameter)(struct _gfxdevice*dev, const char*key, const char*value);
+
+    int (*startpage)(struct _gfxdevice*dev, int xmin, int ymin, int xmax, int ymax); /*xmin/ymin?*/
+
+    void (*startClip)(struct _gfxdevice*dev, gfxline_t*line);
+    void (*endClip)(struct _gfxdevice*dev);
+    void (*stroke)(struct _gfxdevice*dev, gfxline_t*line, int width, gfxcolor_t*color, int cap_style, int joint_style);
+    void (*fill)(struct _gfxdevice*dev, gfxline_t*line, gfxcolor_t*color);
+    void (*fillbitmap)(struct _gfxdevice*dev, gfxline_t*line, gfximage_t*img, gfxmatrix_t*matrix, gfxcxform_t*cxform); //cxform? tiling?
+    void (*fillgradient)(struct _gfxdevice*dev, gfxgradient_t*gradient, gfxgradienttype_t type, gfxmatrix_t*matrix); //?
+
+    void (*addfont)(struct _gfxdevice*dev, char*fontid, gfxfont_t*font, gfxmatrix_t*matrix);
+    void (*drawchar)(struct _gfxdevice*dev, char*fontid, int glyph, int x, int y);
+
+    void (*drawLink)(struct _gfxdevice*dev, int x1, int y1, int x2, int y2, char*action);
+    
+    int (*endpage)(struct _gfxdevice*dev); //?
+    
+    int (*finish)(struct _gfxdevice*dev);
+
+    void* internal;
+} gfxdevice_t;
+