[Piglit] [PATCH 2/2] fbo-blending-formats: Disable dithering

[Ian Romanick]

From: Ian Romanick <ian.d.romanick at intel.com>

With A1 and A2 formats, dithering causes changes of a single bit to
result in errors that are large enough (e.g., 0.443889 may dither to
0) for the pixel probes to reject.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=43328
Signed-off-by: Ian Romanick <ian.d.romanick at intel.com>
---
 tests/fbo/fbo-blending-formats.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/tests/fbo/fbo-blending-formats.c b/tests/fbo/fbo-blending-formats.c
index 9637210..5ea1b05 100644
--- a/tests/fbo/fbo-blending-formats.c
+++ b/tests/fbo/fbo-blending-formats.c
@@ -335,4 +335,5 @@ enum piglit_result piglit_display(void)
 void piglit_init(int argc, char **argv)
 {
 	fbo_formats_init(argc, argv, GL_TRUE);
+	glDisable(GL_DITHER);
 }
-- 
1.7.6.4