From 928dd92276345b95e54fc057092347987563355f Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Sat, 14 Jan 2012 20:51:43 +0900
Subject: [PATCH] Use 0.0 instead of 0.5 for t for palette lookups.

I realized it's pretty silly using colormap + palette when I can just
combine the two into one and have a 2D palette. This is in preparation for
that.
---
 libs/video/renderer/glsl/quake2d.frag  | 2 +-
 libs/video/renderer/glsl/quakebsp.frag | 2 +-
 libs/video/renderer/glsl/quakemdl.frag | 2 +-
 libs/video/renderer/glsl/quakepnt.frag | 2 +-
 libs/video/renderer/glsl/quakeski.frag | 2 +-
 libs/video/renderer/glsl/quakespr.frag | 4 ++--
 libs/video/renderer/glsl/quaketrb.frag | 2 +-
 7 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/libs/video/renderer/glsl/quake2d.frag b/libs/video/renderer/glsl/quake2d.frag
index 4720e1989..730b48e22 100644
--- a/libs/video/renderer/glsl/quake2d.frag
+++ b/libs/video/renderer/glsl/quake2d.frag
@@ -12,5 +12,5 @@ main (void)
 	pix = texture2D (texture, st).r;
 	if (pix == 1.0)
 		discard;
-	gl_FragColor = texture2D (palette, vec2 (pix, 0.5)) * color;
+	gl_FragColor = texture2D (palette, vec2 (pix, 0.0)) * color;
 }
diff --git a/libs/video/renderer/glsl/quakebsp.frag b/libs/video/renderer/glsl/quakebsp.frag
index 896b050bd..f48761cdc 100644
--- a/libs/video/renderer/glsl/quakebsp.frag
+++ b/libs/video/renderer/glsl/quakebsp.frag
@@ -14,5 +14,5 @@ main (void)
 	float       col;
 
 	col = texture2D (colormap, vec2 (pix, light * 4.0)).r;
-	gl_FragColor = texture2D (palette, vec2 (col, 0.5));
+	gl_FragColor = texture2D (palette, vec2 (col, 0.0));
 }
diff --git a/libs/video/renderer/glsl/quakemdl.frag b/libs/video/renderer/glsl/quakemdl.frag
index fb4f01fae..cf7014e9b 100644
--- a/libs/video/renderer/glsl/quakemdl.frag
+++ b/libs/video/renderer/glsl/quakemdl.frag
@@ -21,5 +21,5 @@ main (void)
 	light = 255.0 - light;
 	light += d * shadelight;
 	col = texture2D (colormap, vec2 (pix, light / 255.0)).r;
-	gl_FragColor = texture2D (palette, vec2 (col, 0.5));
+	gl_FragColor = texture2D (palette, vec2 (col, 0.0));
 }
diff --git a/libs/video/renderer/glsl/quakepnt.frag b/libs/video/renderer/glsl/quakepnt.frag
index 3d17156dd..145e70fd1 100644
--- a/libs/video/renderer/glsl/quakepnt.frag
+++ b/libs/video/renderer/glsl/quakepnt.frag
@@ -6,5 +6,5 @@ main (void)
 {
 	if (color == 1.0)
 		discard;
-	gl_FragColor = texture2D (palette, vec2 (pix, 0.5));
+	gl_FragColor = texture2D (palette, vec2 (pix, 0.0));
 }
diff --git a/libs/video/renderer/glsl/quakeski.frag b/libs/video/renderer/glsl/quakeski.frag
index a2ce4be11..7c83f6d75 100644
--- a/libs/video/renderer/glsl/quakeski.frag
+++ b/libs/video/renderer/glsl/quakeski.frag
@@ -26,5 +26,5 @@ main (void)
 		st = direction.xy * len + flow * realtime / 16.0;
 		pix = texture2D (solid, st).r;
 	}
-	gl_FragColor = texture2D (palette, vec2 (pix, 0.5));
+	gl_FragColor = texture2D (palette, vec2 (pix, 0.0));
 }
diff --git a/libs/video/renderer/glsl/quakespr.frag b/libs/video/renderer/glsl/quakespr.frag
index 09e51cbcd..0b4fa9ab7 100644
--- a/libs/video/renderer/glsl/quakespr.frag
+++ b/libs/video/renderer/glsl/quakespr.frag
@@ -16,8 +16,8 @@ main (void)
 	pixb = texture2D (spriteb, stb).r;
 	if (pixa == 1.0 && pixb == 1.0)
 		discard;
-	cola = texture2D (palette, vec2 (pixa, 0.5)) * colora;
-	colb = texture2D (palette, vec2 (pixb, 0.5)) * colorb;
+	cola = texture2D (palette, vec2 (pixa, 0.0)) * colora;
+	colb = texture2D (palette, vec2 (pixb, 0.0)) * colorb;
 	col = mix (cola, colb, blend);
 	if (col.a == 0.0)
 		discard;
diff --git a/libs/video/renderer/glsl/quaketrb.frag b/libs/video/renderer/glsl/quaketrb.frag
index 724713725..7828cab87 100644
--- a/libs/video/renderer/glsl/quaketrb.frag
+++ b/libs/video/renderer/glsl/quaketrb.frag
@@ -27,5 +27,5 @@ main (void)
 
 	st = turb_st (tst, realtime);
 	pix = texture2D (texture, st).r;
-	gl_FragColor = texture2D (palette, vec2 (pix, 0.5));
+	gl_FragColor = texture2D (palette, vec2 (pix, 0.0));
 }