From a947c1a3fe100dfc1ac519010673d1136f1dcd08 Mon Sep 17 00:00:00 2001
From: Markus Amsler <markus.amsler@oribi.org>
Date: Sat, 31 May 2008 03:10:21 +0200
Subject: [PATCH] r500: Use 8bit fog alpha compare value.

This fixes transparency issues on r500 by enabling
backwards compatibility with the r300 alpha compare value.
---
 src/mesa/drivers/dri/r300/r300_state.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index cb39ce01106..dc14759c081 100644
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -479,6 +479,7 @@ static void r300SetAlphaState(GLcontext * ctx)
 
 	if (really_enabled) {
 		pp_misc |= R300_FG_ALPHA_FUNC_ENABLE;
+		pp_misc |= R500_FG_ALPHA_FUNC_8BIT;
 		pp_misc |= (refByte & R300_FG_ALPHA_FUNC_VAL_MASK);
 	} else {
 		pp_misc = 0x0;
-- 
2.30.2