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st/mesa: fix renderbuffer pointer check in st_Clear()

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Fixes http://bugs.freedesktop.org/show_bug.cgi?id=30694

NOTE: This is a candidate for the 7.9 and 7.10 branches.
(cherry picked from commit efbd33aff9)
This commit is contained in:
Brian Paul 2011-01-04 08:00:25 -07:00
parent 8941450010
commit 54c2846f23
1 changed files with 2 additions and 6 deletions
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8
src/mesa/state_tracker/st_cb_clear.c
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@ -470,13 +470,9 @@ st_Clear(GLcontext *ctx, GLbitfield mask)
if (mask & (1 << b)) {
struct gl_renderbuffer *rb
= ctx->DrawBuffer->Attachment[b].Renderbuffer;
struct st_renderbuffer *strb;
struct st_renderbuffer *strb = st_renderbuffer(rb);
assert(rb);
strb = st_renderbuffer(rb);
if (!strb->surface)
if (!strb || !strb->surface)
continue;
if (check_clear_color_with_quad( ctx, rb ))