diff -r e1b950c65cb4 -r 837f303aceeb epoc32/include/graphics/lookuptable.h --- a/epoc32/include/graphics/lookuptable.h Wed Mar 31 12:27:01 2010 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,42 +0,0 @@ -// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). -// All rights reserved. -// This component and the accompanying materials are made available -// under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members -// which accompanies this distribution, and is available -// at the URL "http://www.symbianfoundation.org/legal/licencesv10.html". -// -// Initial Contributors: -// Nokia Corporation - initial contribution. -// -// Contributors: -// -// Description: -// - -#ifndef __LOOKUPTABLE_H__ -#define __LOOKUPTABLE_H__ - -#include - -/** -@internalTechnology -*/ - IMPORT_C const TUint16* Convert16to32bppLow(); - IMPORT_C const TUint32* Convert16to32bppHigh(); - -/** -Returns the pointer to the table of 16-bit normalisation table. -The table is currently used for performing un-multiplying Premultiplied Alpha color channels. -Use: Let x be c * a/255, and y = c, then y = (x/a)*255, where a is in 0-255 range. - To use this table, use y = (x * Table[a])>>8. i.e, the inaccurate division is converted - to more accurate multiplication and shift. - -@return pointer to the normalisation table. -@internalTechnology - -*/ -IMPORT_C const TUint16* PtrTo16BitNormalisationTable(); - - - -#endif