[webkit-qt] OpenGl version for QT WebKit 5.0

[gaurav.aradhya at wipro.com]

Thanks Konstantin for the comments,  I have a follow up question. Upto what version of QT Webkit can we use QPainter/QPainterEngine/OpenGL ES 1.x based graphics?  Do we have restriction after certain version of QT Webkit where porting Graphics on top of OpenGL ES 1.x (fixed function pipeline) becomes tedious/complicated and higher version of OpenGl (like Opengl2.0 ES, programmable pipeline) are preferred/recommended.


Thanks for help in advance!


Best Regards

Gaurav


________________________________
From: Konstantin Tokarev <annulen at yandex.ru>
Sent: Wednesday, August 2, 2017 14:27
To: Gaurav Ekoram Aradhya (Product Engineering Service); webkit-qt at lists.webkit.org
Subject: Re: [webkit-qt] OpenGl version for QT WebKit 5.0

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02.08.2017, 22:20, "gaurav.aradhya at wipro.com" <gaurav.aradhya at wipro.com>:
> Hello there,
>
> We are trying to port QT Webkit 5.0 ( upstream trunk subversion revision 136242) on an embedded platform. Earlier to this we had Webkit 74xxx (release in 2010) on the embedded platform with Custom implementation of OpenGl 1.x ES.

Latest QtWebKit branch is based on r196805 + lots of backported fixes.

https://clicktime.symantec.com/a/1/c9w57xeWSnHPMe-ZCviAKqv-KXWW41SlF6rRvBaaKms=?d=lI0LGpqj47KvnMDiKjohhRsWXurw-tTZx-2rrmODD7ktvRZInTiBMnxbbJOWH0bS0WNp3LpTOQwecIzVdoTFhI_3ODhAAx_FTQ9Is0L2qpACYEAwJ92Hp3gTrHvviS1hmxTJdRDvuhUYwqBA0KU4XGPfxBTCfr0RAfP_PIPlhcTTjKhVpQSbJZlZmsQlb6XuCkdkLkKnzWYwOEHrH_ITWT2UYUOpsJoWgiQ_gso73rM4KpGwYmW4lJqQf7bEM8UYK9TJl04wKvHRS9WgjBN-87DORtcEcpXHaYZsRqhNhDlt7maxcJq3f5dMhMOmPxzOVeaok7yLtcKDY3MG4eXLINmCVdfHNvdKWxYKBx4uLYMw6_ZmIPxh&u=http%3A%2F%2Fcode.qt.io%2Fcgit%2Fqt%2Fqtwebkit.git%2F%3Fh%3D5.212

>
> We want to continue using our existing custom OpenGl 1.x implementation for the targeted QT WebKit version 5.0. So can we continue using our custom OpenGl 1.x implementation (fixed function pipeline) for QT WebKit 5.0 Port? Ofcourse there could be few additional tweaks/functions/ extensions to be supported by the custom OpenGl to support QT WebKit. At a high level any idea what could be the challenges faced from a Graphics pipeline perspective for WebKit QT port?

Qt port assumes that GraphicsContext painting is done via QPainter (see GraphicsContextQt). However, if QPainter uses QPaintEngine based on OpenGL ES 1.x, it should be possible to integrate your OpenGL-based GraphicsContext smoothly.

>
> Thanks for help in advance!
>
> Warm Regards
>
> Gaurav
>
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--
Regards,
Konstantin

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