kc3-lang/angle

2023-05-19T15:26:50

Selectively advertise base vertex and instance fns On newer Mali GPUs (Valhall), the glDraw*BaseVertex* implementations seem to be buggy and cause noticable artifacts. Chrome uses the presence of baseVertexBaseInstanceANGLE and baseInstanceEXT extensions to determine whether it can draw with a base vertex or to fallback to manually offsetting the vbo. This CL disables these extensions on Mali Valhall so that Chrome takes the fallback path instead to fix the visual artifacts. Bug: b/280931795 Change-Id: Ic27e37465283ca3338747b53aa7888c7eba4b7b8 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4549682 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Geoff Lang <geofflang@chromium.org>