Skip to content

gl4es: Delay feature detection until a context exists

Gleb Mazovetskiy requested to merge glebm/openmw:gl4es-patch into master

gl4es feature detection does not work reliably with EGL.

If a context already exists, gl4es can instead reliably detect the underlying GLES features from the context itself.

This requires gl4es to be configured with:

-DNOEGL=ON -DNO_LOADER=ON -DNO_INIT_CONSTRUCTOR=ON

This also requires gl4es to have this fix: https://github.com/ptitSeb/gl4es/pull/271

I've been told previously that we do not want to support gl4es officially but we already have an Android-specific hack, and this little MR is all that's needed to support it on other embedded platforms.

The code is self-contained and is trivial to remove once/if we have native GLES support.

As this fixes feature detection, it brings up the FPS on my RG351p from 0.1 to 7.

Edited by Gleb Mazovetskiy

Merge request reports