Olexiy Avramchenko wrote:
GdkPixbuf is not what I need, cus it is by definition slow. I guess, drawing pixbufs is optimized for Render just because it is frequently used (all icons, for example), and alpha-drawable-to-drawable is too special to even bother about it.Dmitry M. Shatrov wrote:
Hello.
As I know, XRender extension allows to compose two X drawables.
Coldn't find a wrapper in GDK, though (except one 'non-public' function in a CVS version,
that draws a filled alpha blended rectangle). Is there any?
And, if not, what is ther reason of complete Render support being not here yet?
Hi
You can draw gdk-pixbuf with alpha-channel to any gdk drawable. Under X GDK *use* XRender for this. Look at "gdk/x11/gdkdrawable-x11.c" for details.
I dont know about complete XRender support in X11 GDK backend, but you always can code all you need with foreign pixmaps.
Olexiy
I use GdkPixbuf to draw a marker, then render it to a server-side pixmap. That pixmap is used in fast animation (unfortunately non-alpha at the moment), so it must be drawn as quick as possible - that's a common XRender's task
Looks like it worths adding a pair of calls to gdk-x11 and post it to gtk-devel..
Dmitry
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