Mesa (master): intel: Fix inverted test for disabling flushing of front buffer output.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: fd65418f600874b05f902b622078b40bc1abb24a
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=fd65418f600874b05f902b622078b40bc1abb24a

Author: Eric Anholt <eric at anholt.net>
Date:   Mon Aug  3 14:27:41 2009 -0700

intel: Fix inverted test for disabling flushing of front buffer output.

The comment disagreed with the code, and nicely drew my eyes to what was
going wrong.

Bug #21774 (blender)
Bug #21788 (readpix)

---

 src/mesa/drivers/dri/intel/intel_context.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index 7f5b8d7..35d9985 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -513,7 +513,7 @@ intel_flush(GLcontext *ctx, GLboolean needs_mi_flush)
 	  * each of N places that do rendering.  This has worse performances,
 	  * but it is much easier to get correct.
 	  */
-	 if (intel->is_front_buffer_rendering) {
+	 if (!intel->is_front_buffer_rendering) {
 	    intel->front_buffer_dirty = GL_FALSE;
 	 }
       }