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mesa/st: add check for null front renderbuffer

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Not sure if this indicates a problem elsewhere, but without this check
trivial/tri-fbo.c segfaults on resize.  With the patch, it renders
correctly.
This commit is contained in:
Keith Whitwell 2009-03-13 15:49:49 +00:00
parent af34fa316d
commit b3be1651f4
1 changed files with 11 additions and 8 deletions
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19
src/mesa/state_tracker/st_cb_flush.c
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@ -63,16 +63,19 @@ display_front_buffer(struct st_context *st)
GLframebuffer *fb = st->ctx->DrawBuffer;
struct st_renderbuffer *strb
= st_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
struct pipe_surface *front_surf = strb->surface;
/* Hook for copying "fake" frontbuffer if necessary:
*/
st->pipe->screen->flush_frontbuffer( st->pipe->screen, front_surf,
st->pipe->priv );
if (strb) {
struct pipe_surface *front_surf = strb->surface;
/* Hook for copying "fake" frontbuffer if necessary:
*/
st->pipe->screen->flush_frontbuffer( st->pipe->screen, front_surf,
st->pipe->priv );
/*
st->frontbuffer_status = FRONT_STATUS_UNDEFINED;
*/
/*
st->frontbuffer_status = FRONT_STATUS_UNDEFINED;
*/
}
}