With DSA we can no longer rely on this being done in st_validate_state
in response to the framebuffer bindings having changed.

This fixes the ext_framebuffer_multisample-bitmap piglit test.
---
 src/mesa/state_tracker/st_cb_blit.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/mesa/state_tracker/st_cb_blit.c 
b/src/mesa/state_tracker/st_cb_blit.c
index bbaedd1..75289ae 100644
--- a/src/mesa/state_tracker/st_cb_blit.c
+++ b/src/mesa/state_tracker/st_cb_blit.c
@@ -36,6 +36,7 @@
 
 #include "st_context.h"
 #include "st_texture.h"
+#include "st_cb_bitmap.h"
 #include "st_cb_blit.h"
 #include "st_cb_fbo.h"
 #include "st_atom.h"
@@ -93,6 +94,9 @@ st_BlitFramebuffer(struct gl_context *ctx,
 
    st_validate_state(st);
 
+   /* Make sure bitmap rendering has landed in the read framebuffer */
+   st_flush_bitmap_cache(st);
+
    clip.srcX0 = srcX0;
    clip.srcY0 = srcY0;
    clip.srcX1 = srcX1;
-- 
2.1.4

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