From 10d3078ff2c4ed79dc55fc54877e2e3b2e48f85d Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Tue, 17 Apr 2012 03:08:51 -0400
Subject: [PATCH] glsl: Implemented SRCMOD_BIAS and SRCMOD_BIASNEGATE.

---
 mojoshader.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/mojoshader.c b/mojoshader.c
index ad1e3b05..eecbacd0 100644
--- a/mojoshader.c
+++ b/mojoshader.c
@@ -1945,11 +1945,13 @@ static const char *make_GLSL_srcarg_string(Context *ctx, const size_t idx,
             break;
 
         case SRCMOD_BIASNEGATE:
-            premod_str = "-";
-            // fall through.
+            premod_str = "-(";
+            postmod_str = " - 0.5)";
+            break;
+
         case SRCMOD_BIAS:
-            fail(ctx, "SRCMOD_BIAS unsupported"); return buf; // !!! FIXME
-            postmod_str = "_bias";
+            premod_str = "(";
+            postmod_str = " - 0.5)";
             break;
 
         case SRCMOD_SIGNNEGATE: