1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 #ifndef AKNEXTENDEDFADERGFX_ARM11_INL_

    18 #define AKNEXTENDEDFADERGFX_ARM11_INL_

    19 

    20 #ifdef __ARM11_SUPPORT

    21 

    22 // Externalization of our assembler version of the fader

    23 extern "C" void FadeAlignedRect_GrayColorize_16MX(TUint32* address, TUint32 height, TUint32 rbCoef, TUint32 gCoef, TUint32 fadeMapFactor, TUint32 fadeMapOffset, TUint32 rbOverlay, TUint32 gOverlay, TUint32 leftwidth, TUint32 middlewidth, TUint32 rightwidth, TUint32 padding);

    24 

    25 __forceinline void TAknExtendedFaderGfx::PreLoad(TUint32 aStartAddress)

    26 	{

    27 	asm( "pld [aStartAddress]" );

    28     }

    29 

    30 inline TUint32 TAknExtendedFaderGfx::PixelToGrayscaleWithFade_64K(register TUint32 aPixel, register TInt aFadeMapFactor, register TInt aFadeMapOffset, const TUint32 aROverlay, const TUint32 aGOverlay, const TUint32 aBOverlay)

    31 	{

    32 	const TUint32 KRCoef(0x00000144); // R coefficient: 324

    33 	const TUint32 KGCoef(0x00000009); // G coefficient: 9 (* 64 = 576 as G will already be shifted left 6 bits)

    34 	const TUint32 KBCoef(0x0000007C); // B coefficient: 124

    35 	

    36 	// Unpack R,G,B

    37 	register TUint32 r = (aPixel & 0xf800)>>11; // asm("and r, pixel, #0xf800");

    38 	register TUint32 g = (aPixel & 0x07e0); // asm("and g, pixel, #0x07e0");

    39 	register TUint32 b = aPixel & 0x001f; // asm("and b, pixel, #0x001f");

    40 	

    41 	// Calculate unadjusted greyscale value

    42 	aPixel = r*KRCoef + g*KGCoef + b*KBCoef;

    43 		

    44 	// Do fading and adjustment to get a greyscale value between 0-255

    45 	aPixel = (((aPixel * aFadeMapFactor) >> 15 ) + aFadeMapOffset) & 0xFF;

    46 	

    47 	// Colorize and pack

    48 	aPixel = ((aPixel*aROverlay)&0xf800) | (((aPixel*aGOverlay)>>5)&0x07e0) | ((aPixel*aBOverlay)>>11);

    49 	

    50 	return aPixel;

    51 	}

    52 

    53 #endif

    54 

    55 #endif