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List:       freedesktop-xorg
Subject:    Re: Looking for XRender examples
From:       Vlad <vladc6 () yahoo ! com>
Date:       2007-12-06 18:39:37
Message-ID: 57859.98998.qm () web54409 ! mail ! yahoo ! com
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--- Carl Worth <cworth@cworth.org> wrote:
> On Thu, 06 Dec 2007 10:44:10 +0000 (GMT), KAMALNEET SINGH wrote:
> > Some notes on xclock's usage of XRender:
> > * Destination surface is created using XftDrawPicture.
> > * Source surface is created using
> > XftDrawSrcPicture. XftDrawSrcPicture uses XCreatePixmap to
> create a
> > 1x1 pixmap and then uses it as a drawable to create a new
> Picture. And
> > then uses XRenderFillRectangle to draw the color onto it.
> 
> For an application using XRender "only" you can use
> XRenderCreatePicture instead of relying on the Xft library as well.
> 
> As soon as you want to render text through XRender, you will quickly
> find that there's quite a bit of work required to manage everything
> necessary. At that point, you might find it quite helpful to use an
> existing library. Originally, Xft was the recommended library, (and
> should still work fine, of course). But today active development has
> instead moved 

I highly recommend Qt for high-performance text and graphics
rendering. Qt has a very intuitive and mature C++ API and bindings for
other languages (Python, Java, Ruby, etc). It is actively developed as
open source software and supported commercially.

http://trolltech.com/products/qt
http://doc.trolltech.com/4.3/index.html

Vlad


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