Feature Request - Add CefRenderHandler::OnAcceleratedPaint

[amaitland]

CEF has added support for shared textures on Windows using D3D11 (and only D3D11). See commit https://bitbucket.org/chromiumembedded/cef/commits/713eebcafcd7799d4e0eb58b8c2ab58d03ab9b65 for full details.

These changes have been merged into the CEF master branch and will be available in version 71 (CEF builds will be roughly available sometime in early December).

• Add IWindowInfo.SharedTextureEnabled
• Add IRenderHandler.OnAcceleratedPaint
• Add IWindowInfo.ExternalBeginFrameEnabled
• Add IBrowserHost.SendExternalBeginFrame

Actually implementing D3D rendering in CefSharp is outside the scope of this issue. This issue reflects work to be done exposing the relevant CEF API methods/handlers.

Just for reference Microsoft have an open source project for enabling D3D11 support, see https://github.com/Microsoft/WPFDXInterop

[amaitland]

There is one known issue with shared textures and PDF rendering currently, https://bitbucket.org/chromiumembedded/cef/issues/2516/windows-osr-pdf-viewer-does-not-render

I expect there will be quite a few issues that will need to be addressed. Others are reporting issues on the original PR see https://bitbucket.org/chromiumembedded/cef/pull-requests/158/support-external-textures-in-osr-mode/ for details.

I expect it will take a while before this feature is production ready.

[mitchcapper]

It seems the pdf shared textures is fixed in master so by 71 time will not be an issue, but there still are some others that seem relevant.

[amaitland]

Another issue https://bitbucket.org/chromiumembedded/cef/issues/2538/windows-osr-with-shared-textures-renders

[mcdis]

Any progress? IWindowInfo.SharedTextureEnabled?

[amaitland]

When progress has been made this issue will be updated. Chrome hasn't even released a stable 71 build yet.

[amaitland]

cefclient example added in commit https://bitbucket.org/chromiumembedded/cef/commits/1e6b870af0117a675014cc559c1ad9141733226b?at=3578