graphicsdeviceinterface/colourpalette/inc/palette.h
author Faisal Memon <faisal.memon@nokia.com>
Fri, 14 May 2010 15:41:33 +0100
branchNewGraphicsArchitecture
changeset 64 5c983aa672ea
parent 0 5d03bc08d59c
permissions -rw-r--r--
Merge 1. Pull in cpp files in the performance enhanced Khronos RI OVG files which are newly added. I've ignored platform-specific cpp files for linux, macosx, and null operating systems because this local solution has its own platform glue (i.e. facility to target Bitmaps but no full windowing support). I've ignored sfEGLInterface.cpp because this is used as a bridge to go from EGL to Nokia's Platsim which offers an EGL service. That's not relevant to this implementation because this is ARM side code, not Intel side. I just left a comment to sfEGLInterface.cpp in case we need to pick up this later on. The current code compiles on winscw. Prior to this fix, the code works on winscw, and can launch the SVG tiger (tiger.exe). That takes about 20 seconds to render. I hope to always be able to show this icon on each commit, and the plan is for the render time to reduce with this series of submissions. On this commit, the tiger renders ok in 20 seconds.

// Copyright (c) 2002-2009 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:
//

#ifndef __PALETTE_H__
#define __PALETTE_H__

#include <e32base.h>

class TColor256Util;


class DynamicPalette
/** Hooks to allow dynamic palette switching in 256 colour mode.

TRgb::Color256() transparently invokes hooks in this class. The behaviour 
of the system can be customized by replacing the implementation in palette.dll 
with device-specific functionality to switch the colour palette at run-time. 
@publishedAll
@released
*/
	{
public:
	/** Stores the index values of the palettes defined. This enum may be as 
	short or as long as desired - there is no requirement that the size of the 
	enum in any given implementation be limited to the five sample values given 
	in this example implementation. */
	enum TIndex
		{
		/** A palette index number. */
		EIndex0,
		/** A palette index number. */
		EIndex1,
		/** A palette index number. */
		EIndex2,
		/** A palette index number. */
		EIndex4,
		/** A palette index number. */
		EIndex5,
	};

	IMPORT_C static const TColor256Util* DefaultColor256Util();
	IMPORT_C static void SetColor256Util(TIndex aIndex);

	IMPORT_C static const TUint32* Color16array();
	IMPORT_C static const TUint8* Color16inverse();
	};

#endif