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# Andy Ritger - Enabling Alternative Window Systems with a non-Mesa Graphics Driver Implementation
Alternates to the X Window System, such as Wayland and Mir, have evolved
through novel use of the building blocks of the Mesa-, DRI-, and DRM-based
Linux graphics driver stack.
We have been working to support alternative window systems in the NVIDIA
Linux Graphics Driver through:
* Refactoring our driver stack to more closely align to the organization
assumed by these alternative window systems (e.g., by working to plug
* Proposing new EGL extensions that alternative window system
implementations can use to enumerate GPUs, correlate objects between
EGL and DRM-KMS, and present frames through EGL + DRM-KMS.
In this talk, I will describe the work NVIDIA has been doing to prepare
to plug into DRM-KMS, present the EGL_EXT_device_* and EGL_EXT_output_*
family of extensions:
and suggest an EGLStream-based mechanism to present frames to an [EGLoutput](http://www.khronos.org/registry/egl/extensions/EXT/EGL_EXT_stream_consumer_egloutput.txt)