[webkit-dev] Porting WebKit To a new graphic backend.

zhang jipeng onecoolx at gmail.com
Thu Nov 15 06:27:02 PST 2012

, Dominik Röttsches wrote:
> On 11/14/2012 07:24 AM, ZhangJiPeng wrote:
>> The idea came from an embedded browser development project. Benjamin 
>> I want to porting WebKit to a new platform, the platform can only 
>> provide video address programming interface. So I need to porting 
>> DirectFB, Cairo, GTK and so on. However the hardware resources are 
>> limited, can't running so much software, I need to find a more 
>> lightweight and high quality solutions, so I develop the picasso 
>> library. The same code base can run on different graphics system does 
>> not depend on the features of graphic system, this is the goal of 
>> Picasso.
> To experiment with this, you could create your own git branch and try 
> implementing a GraphicsContextPicasso (see 
> Source/WebCore/platform/graphics/cairo | skia) - similar to 
> GraphicsContextSkia and GraphicsContextCairo. Then you need to typedef 
> the WebKit GraphicsContext to the Picasso graphics context and 
> instruct your browser app to do all WebKit rendering into the Picasso 
> GraphicsContext.
> Gettings simple web pages to render with a new backend, somewhat close 
> to the other backends might not even take that long. However, getting 
> every detail right, like layers with opacity, rounded corners, correct 
> clipping, full SVG support etc. is a rahter large amount of work.
> Regards,
> Dominik
Thank you for your suggestion. I have submitted a patch for these 
changes. https://bugs.webkit.org/show_bug.cgi?id=102063
It will be actively maintained.


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