From eb450bbb40bd9cccde74b1e2d660908e154f9cc0 Mon Sep 17 00:00:00 2001
From: Brian <brian.paul@tungstengraphics.com>
Date: Mon, 13 Aug 2007 13:56:30 -0600
Subject: flush pipe before reading image

---
 src/mesa/state_tracker/st_cb_readpixels.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/mesa/state_tracker/st_cb_readpixels.c b/src/mesa/state_tracker/st_cb_readpixels.c
index 273ed5770be..22abc104e22 100644
--- a/src/mesa/state_tracker/st_cb_readpixels.c
+++ b/src/mesa/state_tracker/st_cb_readpixels.c
@@ -74,9 +74,17 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
       return;
    }
 
+   /* make sure rendering has completed */
+   pipe->flush(pipe, 0x0);
 
-   /* XXX check pack->BufferObj !!! */
+   if (pack->BufferObj && pack->BufferObj->Name) {
+      /* reading into a PBO */
 
+   }
+   else {
+      /* reading into user memory/buffer */
+
+   }
 
    strb = st_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer);
    if (!strb)
-- 
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