epoc32/include/graphics/lookuptable.h
branchSymbian3
changeset 4 837f303aceeb
parent 3 e1b950c65cb4
     1.1 --- a/epoc32/include/graphics/lookuptable.h	Wed Mar 31 12:27:01 2010 +0100
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,42 +0,0 @@
     1.4 -// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 -// All rights reserved.
     1.6 -// This component and the accompanying materials are made available
     1.7 -// 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
     1.8 -// which accompanies this distribution, and is available
     1.9 -// at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
    1.10 -//
    1.11 -// Initial Contributors:
    1.12 -// Nokia Corporation - initial contribution.
    1.13 -//
    1.14 -// Contributors:
    1.15 -//
    1.16 -// Description:
    1.17 -//
    1.18 -
    1.19 -#ifndef __LOOKUPTABLE_H__
    1.20 -#define __LOOKUPTABLE_H__
    1.21 -
    1.22 -#include <e32std.h>
    1.23 -
    1.24 -/**
    1.25 -@internalTechnology
    1.26 -*/
    1.27 - IMPORT_C const TUint16* Convert16to32bppLow();
    1.28 - IMPORT_C const TUint32* Convert16to32bppHigh();
    1.29 -
    1.30 -/**
    1.31 -Returns the pointer to the table of 16-bit normalisation table.
    1.32 -The table is currently used for performing un-multiplying Premultiplied Alpha color channels.
    1.33 -Use: Let x be c * a/255, and y = c, then y = (x/a)*255, where a is in 0-255 range.
    1.34 -		To use this table, use y = (x * Table[a])>>8. i.e, the inaccurate division is converted 
    1.35 -		to more accurate multiplication and shift.
    1.36 -		
    1.37 -@return pointer to the normalisation table.
    1.38 -@internalTechnology
    1.39 -
    1.40 -*/
    1.41 -IMPORT_C const TUint16* PtrTo16BitNormalisationTable();
    1.42 -
    1.43 -
    1.44 -
    1.45 -#endif