+/* PNG support*/
+int gfx_render_png (gfx_canvas_t *canvas,
+ art_u32 width, art_u32 height,
+ gfx_color_t background, FILE *fo);
+double gfx_get_text_width_libart ( gfx_canvas_t *canvas,
+ double start, char* font, double size,
+ double tabwidth, char* text);
+
+/* SVG support */
+int gfx_render_svg (gfx_canvas_t *canvas,
+ art_u32 width, art_u32 height,
+ gfx_color_t background, FILE *fo);
+
+/* EPS support */
+int gfx_render_eps (gfx_canvas_t *canvas,
+ art_u32 width, art_u32 height,
+ gfx_color_t background, FILE *fo);