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change cairo-gadget so it can handle constantly updating content

db4
Joe Groff 2008-11-13 09:48:42 -08:00
parent ab366cd1ca
commit f0824b64b6
2 changed files with 22 additions and 41 deletions
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58
extra/cairo/gadgets/gadgets.factor
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@ -1,58 +1,34 @@
! Copyright (C) 2008 Matthew Willis. ! Copyright (C) 2008 Matthew Willis.
! See http://factorcode.org/license.txt for BSD license. ! See http://factorcode.org/license.txt for BSD license.
USING: sequences math opengl.gadgets kernel USING: sequences math kernel byte-arrays cairo.ffi cairo
byte-arrays cairo.ffi cairo io.backend io.backend ui.gadgets accessors opengl.gl arrays fry
ui.gadgets accessors opengl.gl classes ui.render namespaces ;
arrays fry classes ;
IN: cairo.gadgets IN: cairo.gadgets
: width>stride ( width -- stride ) 4 * ; : width>stride ( width -- stride ) 4 * ;
: copy-cairo ( dim quot -- byte-array ) GENERIC: render-cairo* ( gadget -- )
>r first2 over width>stride
[ * nip <byte-array> dup CAIRO_FORMAT_ARGB32 ]
[ cairo_image_surface_create_for_data ] 3bi
r> with-cairo-from-surface ; inline
TUPLE: cairo-gadget < texture-gadget ; : render-cairo ( gadget -- byte-array )
dup dim>> first2 over width>stride
[ * nip <byte-array> dup CAIRO_FORMAT_ARGB32 ]
[ cairo_image_surface_create_for_data ] 3bi
rot '[ _ render-cairo* ] with-cairo-from-surface ; inline
TUPLE: cairo-gadget < gadget ;
: <cairo-gadget> ( dim -- gadget ) : <cairo-gadget> ( dim -- gadget )
cairo-gadget new-gadget cairo-gadget new-gadget
swap >>dim ; swap >>dim ;
M: cairo-gadget cache-key* [ dim>> ] [ class ] bi 2array ; M: cairo-gadget draw-gadget*
[ dim>> ] [ render-cairo ] bi
: render-cairo ( dim quot -- bytes format ) origin get first2 glRasterPos2i
>r 2^-bounds r> copy-cairo GL_BGRA ; inline 1.0 -1.0 glPixelZoom
>r first2 GL_BGRA GL_UNSIGNED_BYTE r>
GENERIC: render-cairo* ( gadget -- ) glDrawPixels ;
M: cairo-gadget render*
[ dim>> dup ] [ '[ _ render-cairo* ] ] bi
render-cairo render-bytes* ;
! maybe also texture>png
! : cairo>png ( gadget path -- )
! >r [ cairo>bytes CAIRO_FORMAT_ARGB32 ] [ width>> ]
! [ height>> ] tri over width>stride
! cairo_image_surface_create_for_data
! r> [ cairo_surface_write_to_png check-cairo ] curry with-surface ;
: copy-surface ( surface -- ) : copy-surface ( surface -- )
cr swap 0 0 cairo_set_source_surface cr swap 0 0 cairo_set_source_surface
cr cairo_paint ; cr cairo_paint ;
TUPLE: png-gadget < texture-gadget path ;
: <png> ( path -- gadget )
png-gadget new-gadget
swap >>path ;
M: png-gadget render*
path>> normalize-path cairo_image_surface_create_from_png
[ cairo_image_surface_get_width ]
[ cairo_image_surface_get_height 2array dup 2^-bounds ]
[ [ copy-surface ] curry copy-cairo ] tri
GL_BGRA render-bytes* ;
M: png-gadget cache-key* path>> ;

5
extra/opengl/gadgets/gadgets.factor
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@ -47,6 +47,11 @@ C: <entry> cache-entry
cache-key* textures get delete-at* cache-key* textures get delete-at*
[ tex>> delete-texture ] [ drop ] if ; [ tex>> delete-texture ] [ drop ] if ;
: clear-textures ( -- )
textures get values [ tex>> delete-texture ] each
H{ } clone textures set-global
H{ } clone refcounts set-global ;
M: texture-gadget graft* ( gadget -- ) [ 1+ ] refcount-change ; M: texture-gadget graft* ( gadget -- ) [ 1+ ] refcount-change ;
M: texture-gadget ungraft* ( gadget -- ) M: texture-gadget ungraft* ( gadget -- )