added an assertion

2007-08-13 16:16:42 -06:00
parent 76818b6709
commit 8571c4babf
1 changed files with 4 additions and 2 deletions
--- 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);
         }
      }
   }