From efa0c0660b9db3601452b32864d0ef114a72e0ce Mon Sep 17 00:00:00 2001
From: Tomas Gavenciak <gavento@ucw.cz>
Date: Mon, 13 Jun 2011 00:56:55 +0200
Subject: [PATCH] Bix fix in pixel value scaling

DUH
---
 pylib/gfxprim/generators/core/make_GP_Convert.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pylib/gfxprim/generators/core/make_GP_Convert.py b/pylib/gfxprim/generators/core/make_GP_Convert.py
index 249763d8..41637cac 100644
--- a/pylib/gfxprim/generators/core/make_GP_Convert.py
+++ b/pylib/gfxprim/generators/core/make_GP_Convert.py
@@ -26,11 +26,11 @@ def core_GP_Pixel_Scale_gen(h):
 
     "{% for s1 in range(1,9) %}{% for s2 in range(1,9) %}"
       "{% if s2>s1 %}"
-	"#define GP_SCALE_VAL_{{s1}}_{{s2}}(val) ((val) * {{ multcoef(s1, s2) }})\n"
+	"#define GP_SCALE_VAL_{{s1}}_{{s2}}(val) (((val) * {{ multcoef(s1, s2) }}) >> {{ (-s2) % s1 }})\n"
       "{% else %}"
 	"#define GP_SCALE_VAL_{{s1}}_{{s2}}(val) ((val) >> {{ s1 - s2 }})\n"
       "{% endif %}"
-    "{% endfor %}{% endfor %}", multcoef = lambda s1,s2: hex(sum([1<<i*s1 for i in range(s2/s1)]))
+    "{% endfor %}{% endfor %}", multcoef = lambda s1,s2: hex(sum([1<<(i*s1) for i in range((s2+s1-1)/s1)]))
     )
 
 
-- 
2.11.4.GIT