On 8 December 2015 at 16:35, Neil Roberts <n...@linux.intel.com> wrote: > If EGL_KHR_surfaceless_context is used then glViewport can be called > with NULL for the draw and read surfaces. This was previously causing > a crash because the i965 driver tries to use this point to invalidate > the surfaces and it was derferencing the NULL pointer. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93257 > Cc: Nanley Chery <nanley.g.ch...@intel.com> > Cc: "11.1" <mesa-sta...@lists.freedesktop.org> Worth throwing in 11.0 as well ?
> --- > > I've also posted a Piglit test for this here: > > http://patchwork.freedesktop.org/patch/67356/ > > src/mesa/drivers/dri/i965/brw_context.c | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/src/mesa/drivers/dri/i965/brw_context.c > b/src/mesa/drivers/dri/i965/brw_context.c > index 7d7643c..5374bad 100644 > --- a/src/mesa/drivers/dri/i965/brw_context.c > +++ b/src/mesa/drivers/dri/i965/brw_context.c > @@ -159,8 +159,10 @@ intel_viewport(struct gl_context *ctx) > __DRIcontext *driContext = brw->driContext; > > if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) { > - dri2InvalidateDrawable(driContext->driDrawablePriv); > - dri2InvalidateDrawable(driContext->driReadablePriv); > + if (driContext->driDrawablePriv) > + dri2InvalidateDrawable(driContext->driDrawablePriv); > + if (driContext->driReadablePriv) > + dri2InvalidateDrawable(driContext->driReadablePriv); Afaict i915 could use an identical fix ? -Emil _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
