From: Brian Paul <brianp@vmware.com>
Date: Tue, 29 Nov 2011 01:00:35 +0000 (-0700)
Subject: st/mesa: don't try to allocate zero-sized renderbuffers
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=68564726898308c9fd7ac63169bfc2e2012d6fe3;p=mesa.git

st/mesa: don't try to allocate zero-sized renderbuffers

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=43047
and https://bugs.freedesktop.org/show_bug.cgi?id=43048

Note: This is a candidate for the 7.11 branch.

Tested-by: Vinson Lee <vlee@vmware.com>
Signed-off-by: Brian Paul <brianp@vmware.com>
---

diff --git a/src/mesa/state_tracker/st_cb_fbo.c b/src/mesa/state_tracker/st_cb_fbo.c
index 1e8ec0556ef..2a60ed4df8a 100644
--- a/src/mesa/state_tracker/st_cb_fbo.c
+++ b/src/mesa/state_tracker/st_cb_fbo.c
@@ -124,6 +124,11 @@ st_renderbuffer_alloc_storage(struct gl_context * ctx,
       pipe_surface_reference( &strb->surface, NULL );
       pipe_resource_reference( &strb->texture, NULL );
 
+      if (width == 0 || height == 0) {
+         /* if size is zero, nothing to allocate */
+         return GL_TRUE;
+      }
+
       /* Setup new texture template.
        */
       memset(&template, 0, sizeof(template));