/*

* Copyright (c) 2005 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 <graphicsaccelerator.h>

#include <j2me/jdebug.h>

#include "lcdgd.hrh"

#include "lcdgdrvif.h"

#include "lcdgdrvutil.h"

#include "lcdtransform.h"

#include "lcdbitblt.h"

#include "lcd16bpp.h"

#include "collision.h"

const TInt KColor64KRedBits    = 5;

const TInt KColor64KRedShift   = 11;

const TInt KColor64KRedMax     = (1<<KColor64KRedBits)-1;

const TInt KColor64KGreenBits  = 6;

const TInt KColor64KGreenShift = 5;

const TInt KColor64KGreenMax   = (1<<KColor64KGreenBits)-1;

const TInt KColor64KBlueBits   = 5;

const TInt KColor64KBlueShift  = 0;

const TInt KColor64KBlueMax    = (1<<KColor64KBlueBits)-1;

#ifdef _DEBUG

const TInt KColor64KRedMask    = KColor64KRedMax<<KColor64KRedShift;

const TInt KColor64KGreenMask  = KColor64KGreenMax<<KColor64KGreenShift;

const TInt KColor64KBlueMask   = KColor64KBlueMax<<KColor64KBlueShift;

#endif

INLINE TInt Color64KRed(TInt aColor64K)

{

    TUint32 red = (aColor64K>>KColor64KRedShift) & KColor64KRedMax;

    red = (red << 3) + (red >> 2);

    ASSERT(red <= 255);

    return red;

}

INLINE TInt Color64KGreen(TInt aColor64K)

{

    TUint32 green = (aColor64K>>KColor64KGreenShift) & KColor64KGreenMax;

    green = (green << 2) + (green >> 4);

    ASSERT(green <= 255);

    return green;

}

INLINE TInt Color64KBlue(TInt aColor64K)

{

    TUint32 blue = (aColor64K>>KColor64KBlueShift) & KColor64KBlueMax;

    blue = (blue << 3) + (blue >> 2);

    ASSERT(blue <= 255);

    return blue;

}

INLINE TUint16 Color64K(TInt aRed, TInt aGreen, TInt aBlue)

{

    TUint16 r = (aRed   & 0xf8) << 8;

    TUint16 g = (aGreen & 0xfc) << 3;

    TUint16 b = (aBlue  & 0xf8) >> 3;

    ASSERT((r & (KColor64KGreenMask|KColor64KBlueMask)) == 0);

    ASSERT((g & (KColor64KRedMask  |KColor64KBlueMask)) == 0);

    ASSERT((b & (KColor64KRedMask  |KColor64KGreenMask)) == 0);

    return (r | g | b);

}

INLINE TUint16 ARGB8888ToColor64K(TUint32 aPixel)

{

    return ((aPixel >> 8)  & 0xf800)|   // 5        // 23,16 -> 15,11

           ((aPixel >> 5)  & 0x07E0)|  // 6        // 15,8  -> 10,5

           ((aPixel >> 3)  & 0x001F);  // 5

}

LOCAL_C INLINE TUint32 Color64KForward(TUint32 aRGB)

{

    return ARGB8888ToColor64K(aRGB);

}

LOCAL_C INLINE TUint32 Color64KReverse(TUint32 aColor64K)

{

    return (Color64KRed(aColor64K)<<16)|(Color64KGreen(aColor64K)<<8)|(Color64KBlue(aColor64K));

}

LOCAL_C INLINE TUint32 Color64KQuantize(TUint32 aRGB)

{

    return Color64KReverse(Color64KForward(aRGB));

}

//

// Renderers

//

#ifdef LCDGD_SUPPORT_ALPHA_BITMAP

LOCAL_C void DrawImageColor64KAlphaToColor64K

(

    const TAcceleratedBitmapInfo* aDstColorBitmap,

    const TAcceleratedBitmapInfo* /*aDstAlphaBitmap*/,

    const TRect&                  aDstRect,         // must be clipped to destination

    const TAcceleratedBitmapInfo* aSrcColorBitmap,

    const TAcceleratedBitmapInfo* aSrcAlphaBitmap,  // alpha

    const TLcdTransform&          aTransform        // includes anchor

);

LOCAL_C void DrawRegionColor64KAlphaToColor64K

(

    const TAcceleratedBitmapInfo* aDstColorBitmap,

    const TAcceleratedBitmapInfo* aDstAlphaBitmap,

    const TRect&                  aDstRect,     // must be clipped to destination

    const TAcceleratedBitmapInfo* aSrcColorBitmap,

    const TAcceleratedBitmapInfo* aSrcAlphaBitmap,      // ignored

    const TLcdTransform&          aTransform        // includes anchor

);

#endif

LOCAL_C void DrawRegionARGB8888AlphaToColor64K

(

    const TAcceleratedBitmapInfo* aDstColorBitmap,

    const TAcceleratedBitmapInfo* aDstAlphaBitmap,

    const TRect&                  aDstRect,     // must be clipped to destination

    const TAcceleratedBitmapInfo* aSrcColorBitmap,      // ARGB8888

    const TAcceleratedBitmapInfo* aSrcAlphaBitmap,      // ignored

    const TLcdTransform&          aTransform        // includes anchor

);

//

// Blitters

//

LOCAL_C void BitBltColor64KToARGB8888

(

    const TAcceleratedBitmapInfo*   aDstColorBitmap,

    const TAcceleratedBitmapInfo*   aDstAlphaBitmap,

    const TRect&                    aDstRect,

    const TAcceleratedBitmapInfo*   aSrcColorBitmap,

    const TAcceleratedBitmapInfo*   aSrcAlphaBitmap,

    const TLcdTransform&            aTransform

);

LOCAL_C void BitBltARGB8888ToColor64K

(

    const TAcceleratedBitmapInfo*   aDstColorBitmap,

    const TAcceleratedBitmapInfo*   aDstAlphaBitmap,

    const TRect&                    aDstRect,

    const TAcceleratedBitmapInfo*   aSrcColorBitmap,

    const TAcceleratedBitmapInfo*   aSrcAlphaBitmap,

    const TLcdTransform&            aTransform

);

#ifdef LCDGD_SUPPORT_1BPP_MASK_BITMAP

LOCAL_C void BitBltARGB8888ToColor64KGray2

(

    const TAcceleratedBitmapInfo*   aDstColorBitmap,

    const TAcceleratedBitmapInfo*   aDstAlphaBitmap,

    const TRect&                    aDstRect,

    const TAcceleratedBitmapInfo*   aSrcColorBitmap,

    const TAcceleratedBitmapInfo*   aSrcAlphaBitmap,

    const TLcdTransform&            aTransform

);

LOCAL_C void BitBltColor64KGray2ToARGB8888

(

    const TAcceleratedBitmapInfo*   aDstColorBitmap,

    const TAcceleratedBitmapInfo*   aDstAlphaBitmap,

    const TRect&                    aDstRect,

    const TAcceleratedBitmapInfo*   aSrcColorBitmap,

    const TAcceleratedBitmapInfo*   aSrcAlphaBitmap,

    const TLcdTransform&            aTransform

);

#endif

#ifdef LCDGD_SUPPORT_MATCHED_MASK_BITMAP

LOCAL_C void BitBltColor64KColor64KToARGB8888

(

    const TAcceleratedBitmapInfo*   aDstColorBitmap,

    const TAcceleratedBitmapInfo*   aDstAlphaBitmap,

    const TRect&                    aDstRect,

    const TAcceleratedBitmapInfo*   aSrcColorBitmap,

    const TAcceleratedBitmapInfo*   aSrcAlphaBitmap,

    const TLcdTransform&            aTransform

);

LOCAL_C void BitBltARGB8888ToColor64KColor64K

(

    const TAcceleratedBitmapInfo*   aDstColorBitmap,

    const TAcceleratedBitmapInfo*   aDstAlphaBitmap,

    const TRect&                    aDstRect,

    const TAcceleratedBitmapInfo*   aSrcColorBitmap,

    const TAcceleratedBitmapInfo*   aSrcAlphaBitmap,

    const TLcdTransform&            aTransform

);

#endif

#ifdef LCDGD_SUPPORT_ALPHA_BITMAP

LOCAL_C void BitBltColor64KGray256ToARGB8888

(

    const TAcceleratedBitmapInfo*   aDstColorBitmap,

    const TAcceleratedBitmapInfo*   aDstAlphaBitmap,

    const TRect&                    aDstRect,

    const TAcceleratedBitmapInfo*   aSrcColorBitmap,

    const TAcceleratedBitmapInfo*   aSrcAlphaBitmap,

    const TLcdTransform&            aTransform

);

LOCAL_C void BitBltARGB8888ToColor64KGray256

(

    const TAcceleratedBitmapInfo*   aDstColorBitmap,

    const TAcceleratedBitmapInfo*   aDstAlphaBitmap,

    const TRect&                    aDstRect,

    const TAcceleratedBitmapInfo*   aSrcColorBitmap,

    const TAcceleratedBitmapInfo*   aSrcAlphaBitmap,

    const TLcdTransform&            aTransform

);

#endif

//

// Supported image types.

//

#define COLOR64K_OPAQUE IMAGE_TYPE(EColor64K,ENone,ETransparencyNone)

#define COLOR64K_MASK_1BPP IMAGE_TYPE(EColor64K,EGray2,ETransparencyMaskBitmap)

#define COLOR64K_MASK_MATCHED IMAGE_TYPE(EColor64K,EColor64K,ETransparencyMaskBitmap)

#define COLOR64K_ALPHA IMAGE_TYPE(EColor64K,EGray256,ETransparencyAlphaBitmap)

//

// General transforming blitters.

//

const TImageRenderer ImageRendererArray[] =

{

    //

    // SrcOver

    //

    /*           target,          source,          transform mask,      function */

#ifdef LCDGD_SUPPORT_ALPHA_BITMAP

    RENDER_ENTRY(COLOR64K_OPAQUE, COLOR64K_ALPHA, KTransSimpleMask, DrawImageColor64KAlphaToColor64K),

    RENDER_ENTRY(COLOR64K_OPAQUE, COLOR64K_ALPHA, KTransAllMask, DrawRegionColor64KAlphaToColor64K),

#endif

    RENDER_ENTRY(COLOR64K_OPAQUE, COLOR64K_OPAQUE, KTransSimpleMask, BitBltSixteenBppSimple),

    RENDER_ENTRY(COLOR64K_OPAQUE, COLOR64K_OPAQUE, KTransAllMask, BitBltSixteenBpp),

#ifdef LCDGD_SUPPORT_1BPP_MASK_BITMAP

    RENDER_ENTRY(COLOR64K_OPAQUE, COLOR64K_MASK_1BPP, KTransNoneMask, DrawImage16Bpp1BppTo16BppOpaque),

    RENDER_ENTRY(COLOR64K_OPAQUE, COLOR64K_MASK_1BPP, KTransAllMask, DrawRegion16Bpp1BppTo16BppOpaque),

#endif

#ifdef LCDGD_SUPPORT_MATCHED_MASK_BITMAP

    RENDER_ENTRY(COLOR64K_OPAQUE, COLOR64K_MASK_MATCHED, KTransAllMask, DrawRegion16Bpp16BppTo16BppOpaque),

#endif

    RENDER_ENTRY(COLOR64K_OPAQUE, JAVA_OPAQUE_IMAGE, KTransAllMask, BitBltARGB8888ToColor64K),

    RENDER_ENTRY(COLOR64K_OPAQUE, JAVA_ALPHA_IMAGE, KTransAllMask, DrawRegionARGB8888AlphaToColor64K),

    //

    // SrcCopy

    //

    /*            target,          source,              function */

    SIMPLE_BLITTER_ENTRY(COLOR64K_OPAQUE, COLOR64K_OPAQUE, BitBltSixteenBppSimple),

    BLITTER_ENTRY(COLOR64K_OPAQUE, COLOR64K_OPAQUE, BitBltSixteenBpp),

    BLITTER_ENTRY(JAVA_ALPHA_IMAGE,  COLOR64K_OPAQUE, BitBltColor64KToARGB8888),

    BLITTER_ENTRY(COLOR64K_OPAQUE,     JAVA_OPAQUE_IMAGE, BitBltARGB8888ToColor64K),

    BLITTER_ENTRY(JAVA_OPAQUE_IMAGE, COLOR64K_OPAQUE, BitBltColor64KToARGB8888),

#ifdef LCDGD_SUPPORT_1BPP_MASK_BITMAP

    BLITTER_ENTRY(COLOR64K_MASK_1BPP, JAVA_ALPHA_IMAGE, BitBltARGB8888ToColor64KGray2),

    BLITTER_ENTRY(JAVA_ALPHA_IMAGE, COLOR64K_MASK_1BPP, BitBltColor64KGray2ToARGB8888),

    BLITTER_ENTRY(COLOR64K_MASK_1BPP, COLOR64K_MASK_1BPP, BitBltSixteenBppOneBpp),

#endif

#ifdef LCDGD_SUPPORT_MATCHED_MASK_BITMAP

    BLITTER_ENTRY(COLOR64K_MASK_MATCHED, JAVA_ALPHA_IMAGE, BitBltARGB8888ToColor64KColor64K),

    BLITTER_ENTRY(JAVA_ALPHA_IMAGE, COLOR64K_MASK_MATCHED, BitBltColor64KColor64KToARGB8888),

    BLITTER_ENTRY(COLOR64K_MASK_MATCHED, COLOR64K_MASK_MATCHED, BitBltSixteenBppSixteenBpp),

#endif

#ifdef LCDGD_SUPPORT_ALPHA_BITMAP

    BLITTER_ENTRY(COLOR64K_ALPHA, JAVA_ALPHA_IMAGE, BitBltARGB8888ToColor64KGray256),

    BLITTER_ENTRY(JAVA_ALPHA_IMAGE, COLOR64K_ALPHA, BitBltColor64KGray256ToARGB8888),

    BLITTER_ENTRY(COLOR64K_ALPHA, COLOR64K_ALPHA, BitBltSixteenBppEightBpp),

#endif

};

const TInt ImageRendererCount = sizeof(ImageRendererArray)/sizeof(ImageRendererArray[0]);

const TCollisionDetector CollisionDetectorArray[] =

{

//

//  Supported collision detectors.

//

    COLLISION_DETECTOR_ENTRY(ENoneBit,ETransparencyNoneBit,        EGray2Bit,ETransparencyMaskBitmapBit,   DetectCollisionGray2Gray2),

    COLLISION_DETECTOR_ENTRY(EGray2Bit,ETransparencyMaskBitmapBit, ENoneBit,ETransparencyNoneBit,          DetectCollisionGray2Gray2),

    COLLISION_DETECTOR_ENTRY(EGray2Bit,ETransparencyMaskBitmapBit, EGray2Bit,ETransparencyMaskBitmapBit,   DetectCollisionGray2Gray2),

#ifdef LCDGD_SUPPORT_ALPHA_BITMAP

    COLLISION_DETECTOR_ENTRY(ENoneBit,ETransparencyNoneBit,            EGray256Bit,ETransparencyAlphaBitmapBit,    DetectCollisionGray256Gray256),

    COLLISION_DETECTOR_ENTRY(EGray2Bit,ETransparencyMaskBitmapBit,     EGray256Bit,ETransparencyAlphaBitmapBit,    DetectCollisionGray2Gray256),

    COLLISION_DETECTOR_ENTRY(EGray256Bit,ETransparencyAlphaBitmapBit,  EGray2Bit,ETransparencyMaskBitmapBit,       DetectCollisionGray256Gray2),

    COLLISION_DETECTOR_ENTRY(EGray256Bit,ETransparencyAlphaBitmapBit,  ENoneBit,ETransparencyNoneBit,              DetectCollisionGray256Gray256),

    COLLISION_DETECTOR_ENTRY(EGray256Bit,ETransparencyAlphaBitmapBit,  EGray256Bit,ETransparencyAlphaBitmapBit,    DetectCollisionGray256Gray256),

#endif

#ifdef LCDGD_SUPPORT_MATCHED_MASK_BITMAP

    COLLISION_DETECTOR_ENTRY(KGenericModesMask,KGenericTransMask,  KGenericModesMask,KGenericTransMask,    GenericDetectCollision),

#endif

};

const TInt CollisionDetectorCount = sizeof(CollisionDetectorArray)/sizeof(CollisionDetectorArray[0]);

const TColorMap ColorMapArray[] =

{

    { EColor64K, Color64KForward, Color64KReverse, Color64KQuantize }

};

const TInt ColorMapCount = sizeof(ColorMapArray)/sizeof(ColorMapArray[0]);

const TDrawFunctions DrawFunctionsArray[] =

{

    {

        EColor64K,

        CLcdGraphicsDevice::ECapFillTriangle,

        NULL,   // drawLine

        NULL,   // drawRect

        NULL,   // fillRect

        NULL,   // drawArc

        NULL,   // fillArc

        &FillTriangle16Bpp,

        NULL    // drawText

    }

};

const TInt DrawFunctionsCount = sizeof(DrawFunctionsArray)/sizeof(DrawFunctionsArray[0]);

//

// Build number of this DLL.

//

const TInt KVersionBuild = 0;

_LIT(KProviderSymbianSoftwareLtd, "Symbian Software Ltd");

LOCAL_C CLcdGraphicsDriverImpl* CreateColor64KDriverL();

//

// Could support more than one implementation

//

const TImplementationProxy ImplementationTable[] =

{

    IMPLEMENTATION_PROXY_ENTRY(LCDGD_COLOR64K_IMPLEMENTATION_UID, CreateColor64KDriverL)

};

EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)

{

    aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);

    return ImplementationTable;

}

CLcdGraphicsDriverImpl* CreateColor64KDriverL()

{

    CLcdGraphicsDriver::TDriverInfo driverInfo;

    driverInfo.iVersion  = TVersion(KLcdImgVersionMajor, KLcdImgVersionMinor, KVersionBuild);

    driverInfo.iProvider = KProviderSymbianSoftwareLtd;

    driverInfo.iTransparencyCaps = CAP_1BPP_MASK_BITMAP|CAP_MATCHED_MASK_BITMAP|CAP_ALPHA_BITMAP;

    driverInfo.iARGB8888Mode = EColorARGB8888;

    driverInfo.iDisplayMode = EColor64K;

    return new(ELeave) CLcdGraphicsDriverImpl

           (

               driverInfo,

               ImageRendererArray,

               ImageRendererCount,

               ColorMapArray,

               ColorMapCount,

               CollisionDetectorArray,

               CollisionDetectorCount,

               DrawFunctionsArray,

               DrawFunctionsCount

           );

}

// ***********************************************************

// Render (SrcOver) routines

// ***********************************************************

#ifdef LCDGD_SUPPORT_ALPHA_BITMAP

LOCAL_C void BlitLineColor64KAlphaToColor64KNoTrans

(

    TUint8* aDstAddress,

    TInt    aWidth,

    TUint8* aColorAddress,

    TInt    DEBUG_ONLY(aColorPixelPitch),

    TUint8* aAlphaAddress,

    TInt    DEBUG_ONLY(aAlphaPixelPitch)

)

{

    ASSERT(aColorPixelPitch == sizeof(TUint16));

    ASSERT(aAlphaPixelPitch == sizeof(TUint8));

    TUint16* dst = (TUint16*)aDstAddress;

    TUint16* end = dst + aWidth;

    TUint16* colorAddr = (TUint16*)aColorAddress;

    TUint8* alphaAddr = aAlphaAddress;

    while (dst < end)

    {

        TUint alpha = *alphaAddr++;

        if (alpha == 0xFF)

        {

            *dst = *colorAddr;

        }

        else

        {

            if (alpha)

            {

                TUint16 dstColor = *dst;

                TUint16 srcColor = *(TUint16*)colorAddr;

                alpha = (alpha << 8) | alpha;

                TUint32 dr = Blend16(alpha, Color64KRed(srcColor), Color64KRed(dstColor));

                TUint32 dg = Blend16(alpha, Color64KGreen(srcColor), Color64KGreen(dstColor));

                TUint32 db = Blend16(alpha, Color64KBlue(srcColor), Color64KBlue(dstColor));

                ASSERT(dr <= 255);

                ASSERT(dg <= 255);

                ASSERT(db <= 255);

                // map back to Color64K

                *dst = Color64K(dr, dg, db);

            }

        }

        dst++;

        colorAddr++;

    }

}

LOCAL_C void DrawImageColor64KAlphaToColor64K

(

    const TAcceleratedBitmapInfo* aDstColorBitmap,

    const TAcceleratedBitmapInfo* /*aDstAlphaBitmap*/,

    const TRect&                  aDstRect,         // must be clipped to destination

    const TAcceleratedBitmapInfo* aSrcColorBitmap,

    const TAcceleratedBitmapInfo* aSrcAlphaBitmap,  // alpha

    const TLcdTransform&          aTransform        // includes anchor

)

{

    ASSERT(aDstColorBitmap->iDisplayMode == EColor64K);

    ASSERT(aSrcColorBitmap->iDisplayMode == EColor64K);

    ASSERT(aSrcAlphaBitmap->iDisplayMode == EGray256);

    GenericMaskBlit(aDstColorBitmap, aDstRect, aSrcColorBitmap, aTransform,

                    aSrcAlphaBitmap, ETrue, BlitLineColor64KAlphaToColor64KNoTrans);

}

LOCAL_C void BlitLineColor64KAlphaToColor64K

(

    TUint8* aDstAddress,

    TInt    aWidth,

    TUint8* aColorAddress,

    TInt    aColorPixelPitch,

    TUint8* aAlphaAddress,

    TInt    aAlphaPixelPitch

)

{

    TUint16* dst = (TUint16*)(aDstAddress);

    TUint16* end = dst + aWidth;

    TUint8* colorAddr = aColorAddress;

    TUint8* alphaAddr = aAlphaAddress;

    while (dst < end)

    {

        TUint alpha = *alphaAddr;

        if (alpha == 0xFF)

        {

            *dst = *(TUint16*)colorAddr;

        }

        else

        {

            if (alpha)

            {

                TUint16 dstColor = *dst;

                TUint16 srcColor = *(TUint16*)colorAddr;

                alpha = (alpha << 8) | alpha;

                TUint32 dr = Blend16(alpha, Color64KRed(srcColor), Color64KRed(dstColor));

                TUint32 dg = Blend16(alpha, Color64KGreen(srcColor), Color64KGreen(dstColor));

                TUint32 db = Blend16(alpha, Color64KBlue(srcColor), Color64KBlue(dstColor));

                ASSERT(dr <= 255);

                ASSERT(dg <= 255);

                ASSERT(db <= 255);

                // map back to Color64K

                *dst = Color64K(dr, dg, db);

            }

        }

        // Advance to next pixel in the line in each bitmap.

        ++dst;  // TUint16* so adds two to the address.

        colorAddr += aColorPixelPitch;

        alphaAddr += aAlphaPixelPitch;

    }

}

LOCAL_C void DrawRegionColor64KAlphaToColor64K

(

    const TAcceleratedBitmapInfo* aDstColorBitmap,

    const TAcceleratedBitmapInfo* /*aDstAlphaBitmap*/,

    const TRect&                  aDstRect,         // must be clipped to destination

    const TAcceleratedBitmapInfo* aSrcColorBitmap,

    const TAcceleratedBitmapInfo* aSrcAlphaBitmap,  // alpha