i965: Skip update_texture_surface when the plane doesn't exist

Reported-by: Grazvydas Ignotas <notasas@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96607
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Cc: Kristian Høgsberg <krh@bitplanet.net>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Chad Versace <chad.versace@intel.com>

1 files changed, 10 insertions, 11 deletions

diff --git a/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c b/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c
index 2a7ae31..932e62e 100644
--- a/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c
@@ -365,6 +365,13 @@ gen7_update_texture_surface(struct gl_context *ctx,
    } else {
       struct intel_texture_object *intel_obj = intel_texture_object(obj);
       struct intel_mipmap_tree *mt = intel_obj->mt;
+
+      if (plane > 0) {
+         if (mt->plane[plane - 1] == NULL)
+            return;
+         mt = mt->plane[plane - 1];
+      }
+
       struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
       /* If this is a view with restricted NumLayers, then our effective depth
        * is not just the miptree depth.
@@ -383,17 +390,9 @@ gen7_update_texture_surface(struct gl_context *ctx,
       const unsigned swizzle = (unlikely(alpha_depth) ? SWIZZLE_XYZW :
                                 brw_get_texture_swizzle(&brw->ctx, obj));
 
-      unsigned format = translate_tex_format(
-         brw, intel_obj->_Format, sampler->sRGBDecode);
-
-      if (obj->Target == GL_TEXTURE_EXTERNAL_OES) {
-         if (plane > 0)
-            mt = mt->plane[plane - 1];
-         if (mt == NULL)
-            return;
-
-         format = translate_tex_format(brw, mt->format, sampler->sRGBDecode);
-      }
+      mesa_format mesa_fmt = plane == 0 ? intel_obj->_Format : mt->format;
+      unsigned format = translate_tex_format(brw, mesa_fmt,
+                                             sampler->sRGBDecode);
 
       if (for_gather && format == BRW_SURFACEFORMAT_R32G32_FLOAT)
          format = BRW_SURFACEFORMAT_R32G32_FLOAT_LD;