egl: Choose GLES3 capable configs when needed

Passing OpenGLES and majorVersion 3 in a QSurfaceFormat selects GLES3 in case
it is supported. This works fine already now, but is not safe since the config
choosing logic does not request a GLES3-capable configuration and so it may
end up with a non-GLES3 compatible one.

This is now corrected by passing the EGL_OPENGL_ES3_BIT_KHR bit when
EGL_KHR_create_context is available.

Change-Id: Iacee1e1819b944c0f7c1062666106abddf59272b
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>

0 files changed, 0 insertions, 0 deletions