[Piglit] [PATCH] The initial value for interval should be 0 to get the correct value.

[Jian Zhao]

There is some modification to the test before and now we need to adjust the
 intial value of the interval. And there is some comments updated.

Signed-off-by: Jian Zhao <jian.j.zhao at intel.com>
CC: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 tests/glx/glx-swap-event.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/tests/glx/glx-swap-event.c b/tests/glx/glx-swap-event.c
index c2ef60e..bc3f3f3 100644
--- a/tests/glx/glx-swap-event.c
+++ b/tests/glx/glx-swap-event.c
@@ -58,16 +58,16 @@ PFNGLXGETSWAPINTERVALMESAPROC pglXGetSwapIntervalMESA;
 
 static GLboolean fullscreen = GL_FALSE;    /* Create a fullscreen window */
 static GLboolean verbose = GL_FALSE;    /* Disable verbose.  */
-static GLboolean Automatic = GL_FALSE;    /* Disable verbose.  */
-static GLboolean test_events = GL_FALSE;    /* Disable verbose.  */
-static GLboolean interval_diff = GL_FALSE;    /* Disable verbose.  */
-static GLboolean async = GL_FALSE;    /* Disable verbose.  */
+static GLboolean Automatic = GL_FALSE;    /*  Test automatically.  */
+static GLboolean test_events = GL_FALSE;    /* Test event's generation.  */
+static GLboolean interval_diff = GL_FALSE;    /* Test interval can be set.  */
+static GLboolean async = GL_FALSE;    /* Test asynchronize.  */
 int event_base, Glx_event, count=0, swap_count=0, event_count=0;
 static int Intel_swap_event=0;
 int  event_count_total=0, frames_total=0, message_count=0;
 static double time_call=0.0, time_fin=0.0, time_val=0.0;
 double swap_start[STACK_L],swap_returned[STACK_L];
-int interval=1;
+int interval=0;
 char * swap_event_type=NULL;
 /**
  * Determine whether or not a GLX extension is supported.
-- 
1.6.0.6