From: Marek Olšák <maraeo@gmail.com>
Date: Tue, 24 Jul 2012 14:11:04 +0000 (+0200)
Subject: gallium/u_blit: bail out if src is a multisample texture
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9d1ef354f9e613d62c5bd61398c00e80d301fcee;p=mesa.git

gallium/u_blit: bail out if src is a multisample texture

Reviewed-by: Brian Paul <brianp@vmware.com>
---

diff --git a/src/gallium/auxiliary/util/u_blit.c b/src/gallium/auxiliary/util/u_blit.c
index 1300872b043..3887e65fbd4 100644
--- a/src/gallium/auxiliary/util/u_blit.c
+++ b/src/gallium/auxiliary/util/u_blit.c
@@ -507,6 +507,12 @@ util_blit_pixels(struct blit_state *ctx,
       return;
    }
 
+   /* XXX Reading multisample textures is unimplemented. */
+   assert(src_tex->nr_samples <= 1);
+   if (src_tex->nr_samples > 1) {
+      return;
+   }
+
    /* It's a mistake to call this function with a stencil format and
     * without shader stencil export. We don't do software fallbacks here.
     * Ignore stencil and only copy depth.