From b59701f6081e355efc557a44c92089988bf95be0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lubo=C5=A1=20Lu=C5=88=C3=A1k?= <l.lunak@kde.org>
Date: Sun, 1 Oct 2006 21:12:58 +0000
Subject: [PATCH] Nicer handling of second phase painting.

svn path=/branches/work/kwin_composite/; revision=591144
---
 scene_opengl.cpp | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/scene_opengl.cpp b/scene_opengl.cpp
index c5c70efee4..d75e31f1fd 100644
--- a/scene_opengl.cpp
+++ b/scene_opengl.cpp
@@ -125,6 +125,7 @@ void SceneOpenGL::paint( QRegion, ToplevelList windows )
     glClearColor( 0, 0, 0, 1 );
     glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
     int depth = 0;
+    QList< Window* > phase2;
     for( int i = windows.count() - 1; // top to bottom
          i >= 0;
          --i )
@@ -136,24 +137,19 @@ void SceneOpenGL::paint( QRegion, ToplevelList windows )
         if( !w.isVisible())
             continue;
         if( !w.isOpaque())
+            {
+            phase2.prepend( w );
             continue;
+            }
         w.bindTexture();
         w.draw();
         }
-    for( int i = 0;
-         i < windows.count();
-         ++i )
+    foreach( Window* w2, phase2 )
         {
-        Toplevel* c = windows[ i ];
-        assert( this->windows.contains( c ));
-        Window& w = this->windows[ c ];
-        if( !w.isVisible())
-            continue;
-        if( w.isOpaque())
-            continue;
-        w.bindTexture();
+        Window& w = *w2;
         glEnable( GL_BLEND );
         glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
+        w.bindTexture();
         w.draw();
         glDisable( GL_BLEND );
         }