From: Alex Deucher <alexdeucher@gmail.com>
Date: Fri, 29 May 2009 14:04:03 +0000 (-0400)
Subject: Remove subpixel offset from viewport
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9b10d19d4a3820958c4bd7d5c8fb7eaf1ef3fce0;p=mesa.git

Remove subpixel offset from viewport

remove subpixel offset inherited from r100 code.
based on 038f0bf5916df5bae1145d234589e5fd528bb7fa
---

diff --git a/src/mesa/drivers/dri/r600/r700_state.c b/src/mesa/drivers/dri/r600/r700_state.c
index d45580178da..e3e78df16c2 100644
--- a/src/mesa/drivers/dri/r600/r700_state.c
+++ b/src/mesa/drivers/dri/r600/r700_state.c
@@ -482,9 +482,6 @@ static void r700StencilOpSeparate(GLcontext * ctx, GLenum face,
 {
 }
 
-#define SUBPIXEL_X 0.125
-#define SUBPIXEL_Y 0.125
-
 static void r700Viewport(GLcontext * ctx, 
                          GLint x, 
                          GLint y,
@@ -520,9 +517,9 @@ static void r700Viewport(GLcontext * ctx,
     }
 
     sx = v[MAT_SX];
-	tx = v[MAT_TX] + xoffset + SUBPIXEL_X;
+	tx = v[MAT_TX] + xoffset;
 	sy = -v[MAT_SY];
-	ty = (-v[MAT_TY]) + yoffset + SUBPIXEL_Y;
+	ty = (-v[MAT_TY]) + yoffset;
 	sz = v[MAT_SZ] * scale;
 	tz = v[MAT_TZ] * scale;