Re: GSoC 2012: Week 5+6

[Lars Sonchocky-Helldorf]

Am 04.06.2012 um 00:28 schrieb Ivan Vučica:

> Hi,
> 
> Since I've now begun real work on the GSoC project, and I've obviously
> started occasionally running into things I need to patch in other
> parts of GNUstep, it may be interesting if I also sent reports
> publicly. Up to now I sent them to Fred, David and Gregory. If sending
> them to the list doesn't seem like a good idea, send me a note and
> I'll stop.
> 
> So here's what I did.
> 
> * I've explored my options for getting pixel data out of Opal.
> * I've picked cairo_image_surface_get_data() and feeding the data into
> a GL texture when updated.
> * I wrote a demo that makes use of Opal to create an image, and then
> uses the above method to create an OpenGL texture, which is then
> painted onscreen. (See: dev-libs/quartzcore/Tests/hello_opal.m).
> * To get hello_opal to run, I patched/worked around Opal's NSFont
> conflict with gnustep-gui.
> * I wrote basic implementation of CALayer and CARenderer, supporting
> painting of background color specified via backgroundColor property of
> a layer, and supporting painting of content drawn via -drawToContext:.
> * I'm trying to stick to OpenGL ES compatible API, so that once I get
> around to porting QuartzCore to ES there is minimum effort needed. I
> expect that some features like masking and shadowing will only be
> supported via shaders, but that's not carved into stone. (Both might
> be doable via Cairo instead.)
> * Additional notes: For now, CARenderer only paints into
> NSOpenGLContext. No transforms or layers nor sublayers. No animation
> support yet (hence no separate model and presentation layer).
> * I wrote a demo that makes use of CALayer and CARenderer, combining
> image previously drawn in hello_opal with a background color. (See:
> dev-libs/quartzcore/Tests/hello_carenderer.m).
> 
> -- 
> Ivan Vučica - ivan@vucica.net

Great to hear about your progress. I don't mind your reports to the list, on 
the contrary, I welcome them!


cheers,

        Lars