uiacceltk/hitchcock/coretoolkit/src/HuiFxColorParameter.cpp
changeset 0 15bf7259bb7c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uiacceltk/hitchcock/coretoolkit/src/HuiFxColorParameter.cpp	Tue Feb 02 07:56:43 2010 +0200
@@ -0,0 +1,87 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:   
+*
+*/
+
+
+
+#include "HuiFxColorParameter.h"
+#include <gdi.h>
+
+template<>
+TUint32 RHuiFxColorTimeLine::ToFixedPoint(const TRgb& aValue)
+    {
+    return aValue.Internal();
+    }
+
+template<>
+TRgb RHuiFxColorTimeLine::FromFixedPoint(const TUint32& aValue)
+    {
+    return TRgb(aValue);
+    }
+
+template<>
+TUint32 RHuiFxColorTimeLine::Blend(const TUint32& aValue1, const TUint32& aValue2, TInt32 aAlpha)
+    {
+    TUint32 redBlue1    = (aValue1 & 0x00ff00ff);
+    TUint32 alphaGreen1 = (aValue1 & 0xff00ff00) >> 8;
+    TUint32 redBlue2    = (aValue2 & 0x00ff00ff);
+    TUint32 alphaGreen2 = (aValue2 & 0xff00ff00) >> 8;
+    
+    TUint32 redBlueDelta    = redBlue2 - redBlue1; 
+    TUint32 alphaGreenDelta = alphaGreen2 - alphaGreen1;
+
+    aAlpha >>= 8;
+    
+    redBlueDelta    = (redBlueDelta * aAlpha) >> 8;
+    alphaGreenDelta = (alphaGreenDelta * aAlpha) >> 8;
+
+    redBlue1    += (redBlueDelta & 0xff00ff);
+    alphaGreen1 += (alphaGreenDelta & 0xff00ff);
+    
+    return redBlue1 | (alphaGreen1 << 8);
+    }
+
+template<>
+TUint32 RHuiFxColorTimeLine::WeightedSum4(const TUint32& aValue1, const TUint32& aValue2, const TUint32& aValue3, const TUint32& aValue4,
+                                          TInt32 aWeight1, TInt32 aWeight2, TInt32 aWeight3, TInt32 aWeight4)
+    {
+    TUint32 a1 = ((aValue1 & 0xff000000) >> 24) * aWeight1;
+    TUint32 a2 = ((aValue2 & 0xff000000) >> 24) * aWeight2;
+    TUint32 a3 = ((aValue3 & 0xff000000) >> 24) * aWeight3;
+    TUint32 a4 = ((aValue4 & 0xff000000) >> 24) * aWeight4;
+    
+    TUint32 r1 = ((aValue1 & 0x00ff0000) >> 16) * aWeight1;
+    TUint32 r2 = ((aValue2 & 0x00ff0000) >> 16) * aWeight2;
+    TUint32 r3 = ((aValue3 & 0x00ff0000) >> 16) * aWeight3;
+    TUint32 r4 = ((aValue4 & 0x00ff0000) >> 16) * aWeight4;
+
+    TUint32 g1 = ((aValue1 & 0x0000ff00) >> 8) * aWeight1;
+    TUint32 g2 = ((aValue2 & 0x0000ff00) >> 8) * aWeight2;
+    TUint32 g3 = ((aValue3 & 0x0000ff00) >> 8) * aWeight3;
+    TUint32 g4 = ((aValue4 & 0x0000ff00) >> 8) * aWeight4;
+    
+    TUint32 b1 = (aValue1 & 0x000000ff) * aWeight1;
+    TUint32 b2 = (aValue2 & 0x000000ff) * aWeight2;
+    TUint32 b3 = (aValue3 & 0x000000ff) * aWeight3;
+    TUint32 b4 = (aValue4 & 0x000000ff) * aWeight4;
+    
+    TUint32 a = ((a1 + a2 + a3 + a4) << 8)  & 0xff000000;
+    TUint32 r = ((r1 + r2 + r3 + r4))       & 0x00ff0000;
+    TUint32 g = ((g1 + g2 + g3 + g4) >> 8)  & 0x0000ff00;
+    TUint32 b = ((b1 + b2 + b3 + b4) >> 16) & 0x000000ff;
+    
+    return (a | r | g | b);
+    }