commit 28f6faca518843b1ee30644a7bfb7aadd6551df1
author Brian Paul <brianp@vmware.com> Mon Jul 06 14:53:06 2015 -0600
committer Jose Fonseca <jfonseca@vmware.com> Mon Nov 09 11:25:59 2015 +0000
tree dbba2c88a377653641e3a1204f78685768e23e11
parent 75d1e363ff142b273b30d8cd236bb1c92c1b2f27

st/wgl: add null pointer check for HUD texture

Fixes crash when using HUD with Nobel Clinician Viewer.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>

src/gallium/state_trackers/wgl/stw_framebuffer.c

diff --git a/src/gallium/state_trackers/wgl/stw_framebuffer.c b/src/gallium/state_trackers/wgl/stw_framebuffer.c
index fbe77b2..11f60b6 100644
--- a/src/gallium/state_trackers/wgl/stw_framebuffer.c
+++ b/src/gallium/state_trackers/wgl/stw_framebuffer.c
@@ -611,7 +611,9 @@
          /* Display the HUD */
          struct pipe_resource *back =
             stw_get_framebuffer_resource(fb->stfb, ST_ATTACHMENT_BACK_LEFT);
-         hud_draw(ctx->hud, back);
+         if (back) {
+            hud_draw(ctx->hud, back);
+         }
       }
 
       if (ctx->current_framebuffer == fb) {