--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/lcdui_akn/javalcdui/inc.nokialcdui/CMIDBufferProcessor.h	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,212 @@
+/*
+* Copyright (c) 2006-2007 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:  Class for buffer processor.
+*
+*/
+
+
+#ifndef CMIDBUFFERPROCESSOR_H
+#define CMIDBUFFERPROCESSOR_H
+
+
+#include <lcdui.h>
+#include "CMIDImage.h"
+#include "TMIDBitmapParameters.h"
+
+// FORWARD DECLARATIONS
+
+class CMIDDirectGraphics;
+class CMIDGraphics;
+class CMIDToolkit;
+
+NONSHARABLE_CLASS(CMIDBufferProcessor): public CBase,
+        public MMIDBufferProcessor, public MMIDComponent
+{
+public: // Construction
+    static void NewL(CMIDToolkit* aToolkit, TInt* aHandle,
+    CMIDGraphics* aGraphics, MMIDImage* aImage);
+
+public: // Destructor
+    ~CMIDBufferProcessor();
+
+public: // From MMIDComponent
+    void Dispose();
+    TType Type() const;
+    MMIDBufferProcessor* Processor();
+
+public:// From MMIDBufferProcessor
+#ifdef RD_JAVA_NGA_ENABLED
+    TBool ProcessL(const TMIDBufferOp*& aBegin,
+                   const TMIDBufferOp* aEnd, TInt& aCycles, java::util::Monitor* aMonitor);
+#else
+    TBool ProcessL(const TMIDBufferOp*& aBegin,
+                   const TMIDBufferOp* aEnd, TInt& aCycles, TRequestStatus* aStatus = NULL);
+#endif
+    void  AbortAsync();
+
+public: // data
+    // Owned
+    CMIDDirectGraphics* iDirectGraphics;
+    // Not owned
+    CMIDGraphics* iGraphics;
+
+protected: // Construction
+    CMIDBufferProcessor();
+    void ConstructL(CMIDGraphics* aGraphics, MMIDImage* aImage);
+
+private:
+
+    enum
+    {
+        EDrawTriangle = 102,
+        EFillTriangle = 103,
+        EDrawImage = 104
+    };
+
+    class TClipData
+    {
+    public:
+        TPoint iTl;
+        TSize iSize;
+    };
+
+    class TTriangleData
+    {
+    public:
+        TInt x1;
+        TInt y1;
+        TInt x2;
+        TInt y2;
+        TInt x3;
+        TInt y3;
+        TInt color;
+    };
+    class TDirectImageData
+    {
+    public:
+        TInt    iImage;
+        TPoint  iPoint;
+        TInt    iAnchor;
+        TInt    iManipulation;
+    };
+
+    inline const TTriangleData& TriangleData(const TMIDBufferOp* aOp);
+    inline const TRect RectData(const TMIDBufferOp* aOp);
+    inline void UnlockedBitmapParameters(TMIDBitmapParameters& aParams,
+                                         const TMIDBufferOp* aOp);
+    inline void LockedBitmapParameters(TMIDBitmapParameters& aParams);
+
+    /**
+     * Draws image
+     * @param aRead contains the image information
+     * @param aUtil is used for locking the target bitmap
+     */
+    void DrawImageL(const TMIDBufferOp* aRead,
+                    TBitmapUtil& aUtil);
+
+    /**
+     * Draws image. All bitmaps must be locked before calling this.
+     * @param aParams contains the image information
+     * @param aSourceUtil is used for locking the source bitmap
+     * @param aTargetUtil is used for locking the target bitmap
+     */
+    void LockedDrawImageL(TMIDBitmapParameters& aParams,
+                          TBitmapUtil& aSourceUtil,
+                          TBitmapUtil& aTargetUtil);
+
+
+    void DrawTriangle(const TTriangleData& aTriangle);
+    void FillTriangle(const TTriangleData& aTriangle);
+    void SetClipRect(const TRect& aRect);
+};
+
+template<class T>
+inline const T& OpData(const TMIDBufferOp* aOp)
+{
+    ASSERT(aOp->Size() >= TInt(1 + (sizeof(T)/sizeof(TMIDBufferOp))));
+    return *static_cast<const T*>(aOp->Data());
+}
+
+inline const CMIDBufferProcessor::TTriangleData&
+CMIDBufferProcessor::TriangleData(const TMIDBufferOp* aOp)
+{
+    return OpData<CMIDBufferProcessor::TTriangleData>(aOp);
+}
+
+inline void
+CMIDBufferProcessor::UnlockedBitmapParameters(TMIDBitmapParameters& aParams,
+        const TMIDBufferOp* aOp)
+{
+    TDirectImageData imageData = OpData<CMIDBufferProcessor::TDirectImageData>(aOp);
+
+    MMIDImage* image = MIDUnhandObject< MMIDImage >(imageData.iImage);
+
+    // note: getting bitmap image increases its reference count
+    MMIDBitmapImage* bitmapImage = image->BitmapImage();
+
+    aParams.iBitmap = bitmapImage->ColorBitmap();
+    CFbsBitmap* alphaBitmap = bitmapImage->AlphaBitmap();
+    if (alphaBitmap)
+    {
+        aParams.iTransparency = ETrue;
+        alphaBitmap->LockHeap();
+        aParams.iAlpha = alphaBitmap->DataAddress();
+        aParams.iAlphaMode = alphaBitmap->DisplayMode();
+        TSize bitmapSize(alphaBitmap->SizeInPixels());
+        TInt scanLineLength =
+            CFbsBitmap::ScanLineLength(bitmapSize.iWidth,
+                                       alphaBitmap->DisplayMode());
+        TInt bitsPerPixel = alphaBitmap->Header().iBitsPerPixel;
+        scanLineLength = (scanLineLength << 3) / bitsPerPixel;
+        aParams.iAlphaSize = (scanLineLength * bitmapSize.iHeight *
+                              bitsPerPixel) >> 3;
+        alphaBitmap->UnlockHeap();
+    }
+
+    aParams.iManipulation = imageData.iManipulation;
+    aParams.iAnchor = imageData.iAnchor;
+    aParams.iX = imageData.iPoint.iX;
+    aParams.iY = imageData.iPoint.iY;
+
+    bitmapImage->RemoveRef();
+}
+
+inline void
+CMIDBufferProcessor::LockedBitmapParameters(TMIDBitmapParameters& aParams)
+{
+    TSize bitmapSize(aParams.iBitmap->SizeInPixels());
+    aParams.iWidth = bitmapSize.iWidth;
+    aParams.iHeight = bitmapSize.iHeight;
+
+    aParams.iScanLength =
+        CFbsBitmap::ScanLineLength(bitmapSize.iWidth,
+                                   aParams.iBitmap->DisplayMode());
+    aParams.iScanLength = (aParams.iScanLength << 3) /
+                          aParams.iBitmap->Header().iBitsPerPixel;
+
+    aParams.iPixels = aParams.iBitmap->DataAddress();
+    aParams.iPixelsSize = (aParams.iScanLength *
+                           bitmapSize.iHeight *
+                           aParams.iBitmap->Header().iBitsPerPixel) >> 3;
+
+}
+
+inline const TRect CMIDBufferProcessor::RectData(const TMIDBufferOp* aOp)
+{
+    const TClipData& clipData = OpData< TClipData >(aOp);
+    const TRect clipRect(clipData.iTl, clipData.iSize);
+    return clipRect;
+}
+
+#endif // CMIDBUFFERPROCESSOR_H