Mesa (master): mesa/main: set PREFER_DP4 to match position_invarient code
Keith Whitwell
keithw at kemper.freedesktop.org
Tue May 5 12:17:27 UTC 2009
Module: Mesa
Branch: master
Commit: 22b417b75ce0e6658a5d1e0e80cb6c3fdf631774
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=22b417b75ce0e6658a5d1e0e80cb6c3fdf631774
Author: Keith Whitwell <keithw at vmware.com>
Date: Fri May 1 18:20:42 2009 +0100
mesa/main: set PREFER_DP4 to match position_invarient code
This is a quick fix for z fighting in quake4 caused by the mismatch
between vertex transformation here and in the position_invarient code.
Full fix would be to make this driver-tunable and adjust both
position_invarient and ffvertex_prog.c code to respect driver
preferences.
---
src/mesa/main/ffvertex_prog.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c
index 1ce5685..82e1c4a 100644
--- a/src/mesa/main/ffvertex_prog.c
+++ b/src/mesa/main/ffvertex_prog.c
@@ -319,7 +319,7 @@ static void make_state_key( GLcontext *ctx, struct state_key *key )
* multiplications with DP4's or with MUL/MAD's? SSE works better
* with the latter, drivers may differ.
*/
-#define PREFER_DP4 0
+#define PREFER_DP4 1
/* Use uregs to represent registers internally, translate to Mesa's
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