From 813e56db511e783fcf1ad7bcfd40645451802bd7 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Tue, 18 Jul 2006 19:15:40 +0000
Subject: Compute ctx->Color._LogicOpEnabled in one place instead of four
 places!

---
 src/mesa/main/blend.c  | 17 ++---------------
 src/mesa/main/enable.c | 16 ++--------------
 src/mesa/main/state.c  | 19 ++++++++++++++++++-
 3 files changed, 22 insertions(+), 30 deletions(-)

(limited to 'src/mesa/main')

diff --git a/src/mesa/main/blend.c b/src/mesa/main/blend.c
index aebc70421a..bf886af9e8 100644
--- a/src/mesa/main/blend.c
+++ b/src/mesa/main/blend.c
@@ -5,9 +5,9 @@
 
 /*
  * Mesa 3-D graphics library
- * Version:  6.1
+ * Version:  6.5.1
  *
- * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -275,13 +275,6 @@ _mesa_BlendEquation( GLenum mode )
    ctx->Color.BlendEquationRGB = mode;
    ctx->Color.BlendEquationA = mode;
 
-   /* This is needed to support 1.1's RGB logic ops AND
-    * 1.0's blending logicops.
-    */
-   ctx->Color._LogicOpEnabled = (ctx->Color.ColorLogicOpEnabled ||
-                                 (ctx->Color.BlendEnabled &&
-                                  mode == GL_LOGIC_OP));
-
    if (ctx->Driver.BlendEquationSeparate)
       (*ctx->Driver.BlendEquationSeparate)( ctx, mode, mode );
 }
@@ -323,12 +316,6 @@ _mesa_BlendEquationSeparateEXT( GLenum modeRGB, GLenum modeA )
    ctx->Color.BlendEquationRGB = modeRGB;
    ctx->Color.BlendEquationA = modeA;
 
-   /* This is needed to support 1.1's RGB logic ops AND
-    * 1.0's blending logicops.  This test is simplified over glBlendEquation
-    * because modeRGB cannot be GL_LOGIC_OP.
-    */
-   ctx->Color._LogicOpEnabled = (ctx->Color.ColorLogicOpEnabled);
-
    if (ctx->Driver.BlendEquationSeparate)
       (*ctx->Driver.BlendEquationSeparate)( ctx, modeRGB, modeA );
 }
diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c
index 1d439e675f..91268b596d 100644
--- a/src/mesa/main/enable.c
+++ b/src/mesa/main/enable.c
@@ -5,9 +5,9 @@
 
 /*
  * Mesa 3-D graphics library
- * Version:  6.5
+ * Version:  6.5.1
  *
- * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -232,12 +232,6 @@ void _mesa_set_enable( GLcontext *ctx, GLenum cap, GLboolean state )
             return;
          FLUSH_VERTICES(ctx, _NEW_COLOR);
          ctx->Color.BlendEnabled = state;
-         /* This is needed to support 1.1's RGB logic ops AND
-          * 1.0's blending logicops.
-          */
-         ctx->Color._LogicOpEnabled =
-            (ctx->Color.ColorLogicOpEnabled ||
-             (state && ctx->Color.BlendEquationRGB == GL_LOGIC_OP));
          break;
 #if FEATURE_userclip
       case GL_CLIP_PLANE0:
@@ -389,12 +383,6 @@ void _mesa_set_enable( GLcontext *ctx, GLenum cap, GLboolean state )
             return;
          FLUSH_VERTICES(ctx, _NEW_COLOR);
          ctx->Color.ColorLogicOpEnabled = state;
-         /* This is needed to support 1.1's RGB logic ops AND
-          * 1.0's blending logicops.
-          */
-         ctx->Color._LogicOpEnabled =
-            (state || (ctx->Color.BlendEnabled &&
-                       ctx->Color.BlendEquationRGB == GL_LOGIC_OP));
          break;
       case GL_MAP1_COLOR_4:
          if (ctx->Eval.Map1Color4 == state)
diff --git a/src/mesa/main/state.c b/src/mesa/main/state.c
index 56b835f537..784757e91f 100644
--- a/src/mesa/main/state.c
+++ b/src/mesa/main/state.c
@@ -1,6 +1,6 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5
+ * Version:  6.5.1
  *
  * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
  *
@@ -985,6 +985,20 @@ update_viewport_matrix(GLcontext *ctx)
 }
 
 
+/**
+ * Update derived color/blend/logicop state.
+ */
+static void
+update_color(GLcontext *ctx)
+{
+   /* This is needed to support 1.1's RGB logic ops AND
+    * 1.0's blending logicops.
+    */
+   ctx->Color._LogicOpEnabled = (ctx->Color.ColorLogicOpEnabled ||
+                                 (ctx->Color.BlendEnabled &&
+                                  ctx->Color.BlendEquationRGB == GL_LOGIC_OP));
+}
+
 
 /**
  * If __GLcontextRec::NewState is non-zero then this function \b must be called
@@ -1046,6 +1060,9 @@ _mesa_update_state( GLcontext *ctx )
    if (new_state & (_NEW_BUFFERS | _NEW_VIEWPORT))
       update_viewport_matrix(ctx);
 
+   if (new_state & _NEW_COLOR)
+      update_color( ctx );
+
    if (ctx->_MaintainTexEnvProgram) {
       if (new_state & (_NEW_TEXTURE | _DD_NEW_SEPARATE_SPECULAR | _NEW_FOG))
 	 _mesa_UpdateTexEnvProgram(ctx);
-- 
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