Iirc invalidate_resource is to allow backend to discard the contents... <div class="gmail_quote">On May 25, 2016 9:18 AM, "Philipp Zabel" <<a href="mailto:p.zabel@pengutronix.de">p.zabel@pengutronix.de</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Use the invalidate_resource pipe callback to invalidate external textures when they are (re-)bound. This is needed to comply with the requirement from the GL_OES_EGL_image_external extension that a call to glBindTexture guarantees that all further sampling will return values that correspond to the values in the external texture at or after the time that glBindTexture was called. Signed-off-by: Philipp Zabel <<a href="mailto:p.zabel@pengutronix.de">p.zabel@pengutronix.de</a>> --- src/mesa/state_tracker/st_atom_texture.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/mesa/state_tracker/st_atom_texture.c b/src/mesa/state_tracker/st_atom_texture.c index 4b7ad77..96be2b2 100644 --- a/src/mesa/state_tracker/st_atom_texture.c +++ b/src/mesa/state_tracker/st_atom_texture.c @@ -410,6 +410,10 @@ update_single_texture(struct st_context *st, } } + if (texObj->TargetIndex == TEXTURE_EXTERNAL_INDEX && + st->pipe->invalidate_resource) + st->pipe->invalidate_resource(st->pipe, stObj->pt); + *sampler_view = st_get_texture_sampler_view_from_stobj(st, stObj, view_format, glsl_version); -- 2.8.1 _______________________________________________ mesa-dev mailing list <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> <a href="https://lists.freedesktop.org/mailman/listinfo/mesa-dev" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> </blockquote></div>