r300g: make dithering work like fglrx.

From fglrx traces the dithering is never enabled.

Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/src/gallium/drivers/r300/r300_state.c b/src/gallium/drivers/r300/r300_state.c
index 39e0558..bf17d5d 100644 (file)
--- a/src/gallium/drivers/r300/r300_state.c
+++ b/src/gallium/drivers/r300/r300_state.c
@@ -321,8 +321,10 @@ static void* r300_create_blend_state(struct pipe_context* pipe,
     }
 
     if (state->dither) {
-        blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT |
-                R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT;
+       /* fglrx appears to never set this */
+       blend->dither = 0;
+        /* blend->dither = R300_RB3D_DITHER_CTL_DITHER_MODE_LUT |
+                           R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT; */
     }
 
     return (void*)blend;