1 ! Copyright (C) 2008 Matthew Willis.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: sequences math kernel byte-arrays cairo.ffi cairo
4 io.backend ui.gadgets accessors opengl.gl arrays fry
5 classes ui.render namespaces destructors libc ;
9 : width>stride ( width -- stride ) 4 * ;
11 : image-dims ( gadget -- width height stride )
12 dim>> first2 over width>stride ; inline
13 : image-buffer ( width height stride -- alien )
17 GENERIC: render-cairo* ( gadget -- )
19 : render-cairo ( gadget -- alien )
22 [ image-buffer dup CAIRO_FORMAT_ARGB32 ]
23 [ cairo_image_surface_create_for_data ] 3bi
24 ] [ '[ _ render-cairo* ] with-cairo-from-surface ] bi ;
26 TUPLE: cairo-gadget < gadget ;
28 : <cairo-gadget> ( dim -- gadget )
29 cairo-gadget new-gadget
32 M: cairo-gadget draw-gadget*
34 [ dim>> ] [ render-cairo &free ] bi
35 origin get first2 glRasterPos2i
37 [ first2 GL_BGRA GL_UNSIGNED_BYTE ] dip
41 : copy-surface ( surface -- )
42 cr swap 0 0 cairo_set_source_surface