From: Brian <brian.paul@tungstengraphics.com>
Date: Mon, 13 Aug 2007 22:16:42 +0000 (-0600)
Subject: added an assertion
X-Git-Tag: android-x86-1.6~16^2~1465^2~390^2~4336
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=8571c4babf82b2fe78dba06458070eb4010cfc18;p=android-x86%2Fexternal-mesa.git

added an assertion
---

diff --git a/src/mesa/state_tracker/st_cb_clear.c b/src/mesa/state_tracker/st_cb_clear.c
index 2583b4f1bd5..80f136e0a67 100644
--- a/src/mesa/state_tracker/st_cb_clear.c
+++ b/src/mesa/state_tracker/st_cb_clear.c
@@ -454,8 +454,10 @@ static void st_clear(GLcontext *ctx, GLbitfield mask)
       GLuint b;
       for (b = 0; b < BUFFER_COUNT; b++) {
          if (BUFFER_BITS_COLOR & mask & (1 << b)) {
-            clear_color_buffer(ctx,
-                               ctx->DrawBuffer->Attachment[b].Renderbuffer);
+            struct gl_renderbuffer *rb
+               = ctx->DrawBuffer->Attachment[b].Renderbuffer;
+            assert(rb);
+            clear_color_buffer(ctx, rb);
          }
       }
    }