--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/svgtopt/gfx2d/src/GfxRenderer/GfxCurveFlattenerP.cpp	Thu Jan 07 16:19:02 2010 +0200
@@ -0,0 +1,146 @@
+/*
+* Copyright (c) 2002 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:  Graphics Extension Library source file
+*
+*/
+
+
+#include "GfxShape.h"
+#include "GfxAffineTransform.h"
+
+
+// ---------------------------------------------------------------------------
+// Constructors
+// ---------------------------------------------------------------------------
+// --------------------------------------------------------------------------
+// TGfxCurveFlattener::TGfxCurveFlattener( TGfxAffineTransform* aTransform )
+// ---------------------------------------------------------------------------
+TGfxCurveFlattener::TGfxCurveFlattener( TGfxAffineTransform* aTransform )
+    {
+    iTransform = aTransform;
+    }
+
+
+
+// --------------------------------------------------------------------------
+// void TGfxCurveFlattener::AddSubCurveQuadL( CGfxEdgeListP* aRenderer,
+// ---------------------------------------------------------------------------
+void TGfxCurveFlattener::AddSubCurveQuadL( CGfxEdgeListP* aRenderer,
+                                           TFixPt* aCtrlPoints,
+                                           TInt32 aLimit )
+    {
+    if ( aLimit <= 0 )
+        {
+        // Add segments to renderer
+        // the first point doesn't have to be transformed
+        // because it is same as the last vertex
+        TFixPt* p2 = aCtrlPoints + 2;
+        iTransform->Transform( p2, 2 );
+        aRenderer->AddPoint( aCtrlPoints[2], aCtrlPoints[3], EFalse, EFalse );
+        aRenderer->AddPoint( aCtrlPoints[4], aCtrlPoints[5], EFalse, EFalse );
+        return;
+        }
+
+    TFixPt left[6], right[6];
+    TFixPt x0, y0, xm, ym, x1, y1;
+    x0 = aCtrlPoints[0];
+    y0 = aCtrlPoints[1];
+    xm = aCtrlPoints[2];
+    ym = aCtrlPoints[3];
+    x1 = aCtrlPoints[4];
+    y1 = aCtrlPoints[5];
+    x0 = ( x0 + xm ) >> 1;
+    y0 = ( y0 + ym ) >> 1;
+    x1 = ( x1 + xm ) >> 1;
+    y1 = ( y1 + ym ) >> 1;
+    xm = ( x0 + x1 ) >> 1;
+    ym = ( y0 + y1 ) >> 1;
+    left[0] = aCtrlPoints[0];
+    left[1] = aCtrlPoints[1];
+    left[2] = x0;
+    left[3] = y0;
+    left[4] = xm;
+    left[5] = ym;
+    right[0] = xm;
+    right[1] = ym;
+    right[2] = x1;
+    right[3] = y1;
+    right[4] = aCtrlPoints[4];
+    right[5] = aCtrlPoints[5];
+    AddSubCurveQuadL( aRenderer, left, aLimit - 1 );
+    AddSubCurveQuadL( aRenderer, right, aLimit - 1 );
+    }
+
+// --------------------------------------------------------------------------
+// void TGfxCurveFlattener::AddSubCurveCubicL( CGfxEdgeListP* aRenderer,
+// ---------------------------------------------------------------------------
+void TGfxCurveFlattener::AddSubCurveCubicL( CGfxEdgeListP* aRenderer,
+                                            TFixPt* aCtrlPoints,
+                                            TInt32 aLimit )
+    {
+    if ( aLimit <= 0 )
+        {
+        // Add segments to renderer
+        TFixPt* p2 = aCtrlPoints + 2;
+        iTransform->Transform( p2, 3 );
+        aRenderer->AddPoint( aCtrlPoints[2], aCtrlPoints[3], EFalse, EFalse );
+        aRenderer->AddPoint( aCtrlPoints[4], aCtrlPoints[5], EFalse, EFalse );
+        aRenderer->AddPoint( aCtrlPoints[6], aCtrlPoints[7], EFalse, EFalse );
+        return;
+        }
+
+    TFixPt left[8], right[8];
+    TFixPt x0, y0, xm, ym, xm1, ym1, xm2, ym2, x1, y1;
+
+    x0 = aCtrlPoints[0];
+    y0 = aCtrlPoints[1];
+    xm1 = aCtrlPoints[2];
+    ym1 = aCtrlPoints[3];
+    xm2 = aCtrlPoints[4];
+    ym2 = aCtrlPoints[5];
+    x1 = aCtrlPoints[6];
+    y1 = aCtrlPoints[7];
+
+    x0 = ( x0 + xm1 ) >> 1;
+    y0 = ( y0 + ym1 ) >> 1;
+    x1 = ( x1 + xm2 ) >> 1;
+    y1 = ( y1 + ym2 ) >> 1;
+    xm = ( xm1 + xm2 ) >> 1;
+    ym = ( ym1 + ym2 ) >> 1;
+    xm1 = ( x0 + xm ) >> 1;
+    ym1 = ( y0 + ym ) >> 1;
+    xm2 = ( x1 + xm ) >> 1;
+    ym2 = ( y1 + ym ) >> 1;
+    xm = ( xm1 + xm2 ) >> 1;
+    ym = ( ym1 + ym2 ) >> 1;
+
+    left[0] = aCtrlPoints[0];
+    left[1] = aCtrlPoints[1];
+    left[2] = x0;
+    left[3] = y0;
+    left[4] = xm1;
+    left[5] = ym1;
+    left[6] = xm;
+    left[7] = ym;
+    right[0] = xm;
+    right[1] = ym;
+    right[2] = xm2;
+    right[3] = ym2;
+    right[4] = x1;
+    right[5] = y1;
+    right[6] = aCtrlPoints[6];
+    right[7] = aCtrlPoints[7];
+    AddSubCurveCubicL( aRenderer, left, aLimit - 1 );
+    AddSubCurveCubicL( aRenderer, right, aLimit - 1 );
+    }