From: Jose Fonseca <j_r_fonseca@yahoo.co.uk>
Date: Sun, 14 Apr 2002 11:33:54 +0000 (+0000)
Subject: Remaining patch for the 255x255=255 identity correction be
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d60bb2fbc8b61e9748ce9c235acd4e870a2df613;p=mesa.git

Remaining patch for the 255x255=255 identity correction be
made also in the runin and runout section of the code.
---

diff --git a/src/mesa/x86/mmx_blend.S b/src/mesa/x86/mmx_blend.S
index 8efae08f5e6..16897377c85 100644
--- a/src/mesa/x86/mmx_blend.S
+++ b/src/mesa/x86/mmx_blend.S
@@ -171,6 +171,12 @@ GLNAME( _mesa_mmx_blend_transparency ):
     PSRLW      ( CONST(8), MM3 )		/*                    t1 >> 8                    */
 
     PADDW      ( MM3, MM2 )			/*        t1 + (t1 >> 8) ~= (t1/255) << 8        */
+
+#if GMBT_GEOMETRIC_CORRECTION 
+    PSRLW      ( CONST(7), MM3 )		/*                    t1 >> 15                   */
+
+    PADDW      ( MM3, MM2 )			/*  t1 + (t1 >> 8) + (t1 >>15) ~= (t1/255) << 8  */
+#endif
 #endif
 
 #if GMBT_SIGNED_ARITHMETIC
@@ -393,6 +399,12 @@ LLBL (GMBT_loop_end):
     PSRLW      ( CONST(8), MM3 )		/*                    t1 >> 8                    */
 
     PADDW      ( MM3, MM2 )			/*        t1 + (t1 >> 8) ~= (t1/255) << 8        */
+
+#if GMBT_GEOMETRIC_CORRECTION 
+    PSRLW      ( CONST(7), MM3 )		/*                    t1 >> 15                   */
+
+    PADDW      ( MM3, MM2 )			/*  t1 + (t1 >> 8) + (t1 >>15) ~= (t1/255) << 8  */
+#endif
 #endif
 
 #if GMBT_SIGNED_ARITHMETIC