DX12 rendering backend

[harish jangra]

hi folks,

I need to know whether Skia provides a DX12 rendering backend similar to OpenGL to use on Windows OS or it through 'Angle'?

Regards

Harish

[Jim Van Verth]

We have our own DX12 backend, and you can also create a DX11 backend through ANGLE. There's still a little work to be done on the DX12 backend -- namely mipmaps for texture filtering -- but it is otherwise feature complete and performant. 

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[harish jangra]

Thanks Jim. Great to know :)

Regards

Harish

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[harish jangra]

Is Metal backend also feature complete?  We are interested in Skia Metal backend for both IOS and Mac OS? 

Please share If there is any link where we can check what all GPU functionality is supported via different GPU backends - Metal (IOS and Mac OS) and DX12?

Regards,

Harish

[Jim Van Verth]

Metal is supported, and used in production by a number of clients such as Flutter.

I don't think we have a particular link listing them all, but the GPU backends we support are:

* OpenGL/OpenGLES

* Vulkan

* Metal

* Direct3D 12

* Dawn (Google's WebGPU implementation)

I'd forgotten -- Vulkan is another option for Windows as well. However, if you do look at D3D12 please let us know. It's our most recent backend and we'd love for more people to put it through its paces. Last I checked it was faster than using ANGLE and D3D11.

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