From 42b262d01a2b0f676ead098c09e33e387b8a5e3a Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Mon, 11 Aug 2008 17:35:21 -0600
Subject: [PATCH] mesa: glsl: better mod() functions

---
 .../slang/library/slang_common_builtin.gc     | 36 ++++++++-----------
 1 file changed, 15 insertions(+), 21 deletions(-)

diff --git a/src/mesa/shader/slang/library/slang_common_builtin.gc b/src/mesa/shader/slang/library/slang_common_builtin.gc
index 18b38af7586..e908e6c9401 100644
--- a/src/mesa/shader/slang/library/slang_common_builtin.gc
+++ b/src/mesa/shader/slang/library/slang_common_builtin.gc
@@ -872,35 +872,29 @@ vec4 mod(const vec4 a, const float b)
 
 vec2 mod(const vec2 a, const vec2 b)
 {
-    float oneOverBx, oneOverBy;
-    __asm float_rcp oneOverBx, b.x;
-    __asm float_rcp oneOverBy, b.y;
-    __retVal.x = a.x - b.x * floor(a.x * oneOverBx);
-    __retVal.y = a.y - b.y * floor(a.y * oneOverBy);
+    vec2 oneOverB;
+    __asm float_rcp oneOverB.x, b.x;
+    __asm float_rcp oneOverB.y, b.y;
+    __retVal = a - b * floor(a * oneOverB);
 }
 
 vec3 mod(const vec3 a, const vec3 b)
 {
-    float oneOverBx, oneOverBy, oneOverBz;
-    __asm float_rcp oneOverBx, b.x;
-    __asm float_rcp oneOverBy, b.y;
-    __asm float_rcp oneOverBz, b.z;
-    __retVal.x = a.x - b.x * floor(a.x * oneOverBx);
-    __retVal.y = a.y - b.y * floor(a.y * oneOverBy);
-    __retVal.z = a.z - b.z * floor(a.z * oneOverBz);
+    vec3 oneOverB;
+    __asm float_rcp oneOverB.x, b.x;
+    __asm float_rcp oneOverB.y, b.y;
+    __asm float_rcp oneOverB.z, b.z;
+    __retVal = a - b * floor(a * oneOverB);
 }
 
 vec4 mod(const vec4 a, const vec4 b)
 {
-    float oneOverBx, oneOverBy, oneOverBz, oneOverBw;
-    __asm float_rcp oneOverBx, b.x;
-    __asm float_rcp oneOverBy, b.y;
-    __asm float_rcp oneOverBz, b.z;
-    __asm float_rcp oneOverBw, b.w;
-    __retVal.x = a.x - b.x * floor(a.x * oneOverBx);
-    __retVal.y = a.y - b.y * floor(a.y * oneOverBy);
-    __retVal.z = a.z - b.z * floor(a.z * oneOverBz);
-    __retVal.w = a.w - b.w * floor(a.w * oneOverBw);
+    vec4 oneOverB;
+    __asm float_rcp oneOverB.x, b.x;
+    __asm float_rcp oneOverB.y, b.y;
+    __asm float_rcp oneOverB.z, b.z;
+    __asm float_rcp oneOverB.w, b.w;
+    __retVal = a - b * floor(a * oneOverB);
 }
 
 
-- 
2.30.2