Good call, I don’t know if this is a bug or on purpose. I’ll try to find that out. But on a GL 3.0-3.2 platform this would still fail if there was no support for glVertexAttribDivisor, or am I wrong?
Cheers Lukas > On 16. May 2018, at 01:05, Dave Airlie <airl...@gmail.com> wrote: > >> On 16 May 2018 at 05:51, Lukas F. Hartmann <lu...@mntmn.com> wrote: >> Hi, >> >> I upgraded Xwayland and the assorted libraries from git masters today, >> and noticed that glamor wouldn't work anymore on i.MX6/etnaviv. The >> error was: >> >> No provider of glVertexAttribDivisor found. Requires one of: >> Desktop OpenGL 3.3 >> OpenGL ES 3.0 >> GL extension "GL_ANGLE_instanced_arrays" >> GL extension "GL_ARB_instanced_arrays" >> GL extension "GL_EXT_instanced_arrays" >> GL extension "GL_NV_instanced_arrays" >> >> The problem is that etnaviv offers GLSL 140 on GL 2.1 and glamor >> rendering assumes that glVertexAttribDivisor() is always available on >> GLSL>=130, which is not the case here. Forcing GLSL 120 makes glamor >> work fine again on this platform. After chatting with ajax in >> #xorg-devel, the following solution was proposed. > > I'm not sure it's legal to expose GLSL 1.40 on GL 2.1. > > Dave. _______________________________________________ xorg-devel@lists.x.org: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: https://lists.x.org/mailman/listinfo/xorg-devel
