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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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// INCLUDE FILES
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#include "HgVgHelper.h"
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#include "HgVgDrawBuffer.h"
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#include "HgVgImageCreator.h"
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#include <e32math.h>
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#include <gulicon.h>
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#include <fbs.h>
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#include <nvg.h>
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#include <AknIconHeader.h>
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#include <AknIconUtils.h>
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const TInt KVertexX(0);
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const TInt KVertexY(1);
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const TInt KVertexZ(2);
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const TInt KNumColorValues(4);
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const TInt KNumColorTransformValues(8);
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const VGfloat KColorByteToFloatFactor(255.0f);
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namespace HgVgHelper
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{
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// ---------------------------------------------------------------------------
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// CreateNonMaskedVgImageL()
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// ---------------------------------------------------------------------------
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//
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static VGImage CreateNonMaskedVgImageL( const CFbsBitmap& aBitmap )
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{
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TSize size = aBitmap.SizeInPixels();
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VGImage image = vgCreateImage(VG_sRGB_565, size.iWidth, size.iHeight,VG_IMAGE_QUALITY_NONANTIALIASED);
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if ( image != VG_INVALID_HANDLE ) // to check if the image was created
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{
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if (aBitmap.DisplayMode() == EColor64K && !aBitmap.IsCompressedInRAM())
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{
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aBitmap.BeginDataAccess();
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TInt stride = aBitmap.DataStride();
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TUint8* ptr = (TUint8*)aBitmap.DataAddress();
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vgGetError(); // to zero the error flag
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vgImageSubData (image, ptr, stride, VG_sRGB_565, 0, 0, size.iWidth, size.iHeight );
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if(vgGetError() != VG_NO_ERROR)
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{
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vgDestroyImage(image);
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image = VG_INVALID_HANDLE;
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}
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aBitmap.EndDataAccess();
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}
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else
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{
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TSize size = aBitmap.SizeInPixels();
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CHgVgDrawBuffer* temp = CHgVgDrawBuffer::NewL(size, EColor64K);
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temp->Gc().BitBlt(TPoint(0,0), &aBitmap);
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temp->GetDrawBufferToVgImage(size, TPoint(0,0), image,
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VG_sRGB_565);
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delete temp;
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}
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}
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return image;
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}
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// ---------------------------------------------------------------------------
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// CreateMaskedVgImageL()
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// ---------------------------------------------------------------------------
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//
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static VGImage CreateMaskedVgImageL( CFbsBitmap* aBitmap, CFbsBitmap* aMask )
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{
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TSize size = aBitmap->SizeInPixels();
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CHgVgDrawBuffer* temp = CHgVgDrawBuffer::NewL(size, EColor16MA);
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temp->Gc().SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha);
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temp->Gc().SetBrushColor(TRgb(0,0,0,0));
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temp->Gc().Clear();
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temp->Gc().BitBltMasked(TPoint(0,0), aBitmap, size, aMask, EFalse);
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VGImage image = vgCreateImage(VG_sRGBA_8888, size.iWidth, size.iHeight,VG_IMAGE_QUALITY_NONANTIALIASED);
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temp->GetDrawBufferToVgImage(size, TPoint(0,0), image,
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VG_sARGB_8888);
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delete temp;
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return image;
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}
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// ---------------------------------------------------------------------------
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// HgVgHelper::CreateVgImageFromIconL()
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// ---------------------------------------------------------------------------
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//
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VGImage CreateVgImageFromIconL(const CGulIcon& aIcon)
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{
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CFbsBitmap* bitmap = aIcon.Bitmap();
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User::LeaveIfNull(bitmap);
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CFbsBitmap* mask = aIcon.Mask();
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// if this is NVG image, rasterize it using
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// nvg engine
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if (bitmap->ExtendedBitmapType() != KNullUid)
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{
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return CHgVgImageCreator::InstanceL()->RenderImageFromIconL(bitmap);
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}
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else
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{
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// otherwise just blit/copy to vg image.
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if (mask)
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{
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return CreateMaskedVgImageL(bitmap, mask);
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}
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else
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{
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return CreateNonMaskedVgImageL(*bitmap);
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}
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}
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}
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// ---------------------------------------------------------------------------
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// HgVgHelper::Clamp()
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// ---------------------------------------------------------------------------
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//
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VGfloat Clamp(VGfloat value, VGfloat min, VGfloat max)
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{
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VGfloat result = (value < min) ? min : value;
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return (result > max) ? max : result;
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}
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// ---------------------------------------------------------------------------
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// HgVgHelper::Lerp()
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// ---------------------------------------------------------------------------
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//
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VGfloat Lerp(VGfloat start, VGfloat end, VGfloat t)
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{
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return start * (1.0f - t) + end * t;
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}
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// ---------------------------------------------------------------------------
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// HgVgHelper::Abs()
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// ---------------------------------------------------------------------------
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//
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VGfloat Abs(VGfloat value)
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{
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return (value < 0) ? -value : value;
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}
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// ---------------------------------------------------------------------------
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// HgVgHelper::CalculateBoudingRect()
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// ---------------------------------------------------------------------------
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//
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void CalculateBoundingRect(TRect& aRect, VGfloat* aPoints, TInt aNumPoints,
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const TRect& aWindowRect)
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{
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TInt height = aWindowRect.Height();
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TPoint min((TInt)aPoints[0], height - (TInt)aPoints[1]);
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TPoint max((TInt)aPoints[0], height - (TInt)aPoints[1]);
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for (TInt i = 0; i < aNumPoints; i++)
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{
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TPoint temp((TInt)aPoints[i*2+0], height - (TInt)aPoints[i*2+1]);
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min.iX = (temp.iX < min.iX) ? temp.iX : min.iX;
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max.iX = (temp.iX > max.iX) ? temp.iX : max.iX;
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min.iY = (temp.iY < min.iY) ? temp.iY : min.iY;
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max.iY = (temp.iY > max.iY) ? temp.iY : max.iY;
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}
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// Top Left
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aRect.iTl = min;
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// Bottom Right
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aRect.iBr = max;
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}
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void TVertex::ProjectPoint(VGfloat aScreenWidth, VGfloat aScreenHeight, VGfloat aFov)
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{
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VGfloat hw = aScreenWidth * 0.5f;
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VGfloat hh = aScreenHeight * 0.5f;
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VGfloat alpha = aFov / 2.0f;
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double tanAlpha;
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Math::Tan(tanAlpha, alpha);
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VGfloat d = hw / tanAlpha;
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iScreenX = (VGfloat)(hw + d * iTx / iTz);
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iScreenY = (VGfloat)(hh + d * iTy / iTz);
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}
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void TVertex::TransformPoint(const TMatrix& aMatrix)
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{
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iTx = iX * aMatrix.iM[0][0] + iY * aMatrix.iM[1][0] + iZ * aMatrix.iM[2][0] + aMatrix.iM[3][0];
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iTy = iX * aMatrix.iM[0][1] + iY * aMatrix.iM[1][1] + iZ * aMatrix.iM[2][1] + aMatrix.iM[3][1];
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iTz = iX * aMatrix.iM[0][2] + iY * aMatrix.iM[1][2] + iZ * aMatrix.iM[2][2] + aMatrix.iM[3][2];
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}
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TMatrix::TMatrix()
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{
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}
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TMatrix::TMatrix(const TMatrix& rhs)
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{
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(*this) = rhs;
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}
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TMatrix::~TMatrix()
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{
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}
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TMatrix& TMatrix::operator=(const TMatrix& rhs)
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{
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for (int i = 0; i < 4; ++i)
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{
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for (int j = 0; j < 4; ++j)
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{
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iM[i][j] = rhs.iM[i][j];
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}
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}
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return *this;
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}
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void TMatrix::Identity()
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{
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iM[0][0] = 1.0f;
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iM[0][1] = 0.0f;
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iM[0][2] = 0.0f;
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iM[0][3] = 0.0f;
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iM[1][0] = 0.0f;
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iM[1][1] = 1.0f;
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iM[1][2] = 0.0f;
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iM[1][3] = 0.0f;
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iM[2][0] = 0.0f;
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iM[2][1] = 0.0f;
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iM[2][2] = 1.0f;
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iM[2][3] = 0.0f;
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iM[3][0] = 0.0f;
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iM[3][1] = 0.0f;
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iM[3][2] = 0.0f;
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iM[3][3] = 1.0f;
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}
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void TMatrix::Multiply(const TMatrix& rhs)
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{
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VGfloat temp[4][4];
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for (int i = 0; i < 4; ++i)
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{
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for (int j = 0; j < 4; ++j)
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{
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temp[i][j] =
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iM[i][0] * rhs.iM[0][j] +
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iM[i][1] * rhs.iM[1][j] +
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iM[i][2] * rhs.iM[2][j] +
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iM[i][3] * rhs.iM[3][j];
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}
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}
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for (int i = 0; i < 4; ++i)
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{
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for (int j = 0; j < 4; ++j)
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{
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iM[i][j] = temp[i][j];
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}
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}
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}
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void TMatrix::RotationX(VGfloat angle)
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{
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double sa, ca;
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Math::Sin(sa, angle);
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Math::Cos(ca, angle);
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iM[0][0] = 1.0f;
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iM[0][1] = 0.0f;
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iM[0][2] = 0.0f;
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iM[0][3] = 0.0f;
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iM[1][0] = 0.0f;
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iM[1][1] = ca;
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iM[1][2] = sa;
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iM[1][3] = 0.0f;
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iM[2][0] = 0.0f;
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iM[2][1] = -sa;
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iM[2][2] = ca;
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iM[2][3] = 0.0f;
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iM[3][0] = 0.0f;
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iM[3][1] = 0.0f;
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iM[3][2] = 0.0f;
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iM[3][3] = 1.0f;
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}
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void TMatrix::RotationY(float angle)
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{
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double sa, ca;
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Math::Sin(sa, angle);
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Math::Cos(ca, angle);
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iM[0][0] = ca;
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iM[0][1] = 0.0f;
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iM[0][2] = -sa;
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iM[0][3] = 0.0f;
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iM[1][0] = 0.0f;
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iM[1][1] = 1.0f;
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iM[1][2] = 0.0f;
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iM[1][3] = 0.0f;
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iM[2][0] = sa;
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iM[2][1] = 0.0f;
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iM[2][2] = ca;
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iM[2][3] = 0.0f;
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iM[3][0] = 0.0f;
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iM[3][1] = 0.0f;
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iM[3][2] = 0.0f;
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iM[3][3] = 1.0f;
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}
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void TMatrix::Scale(VGfloat aSx, VGfloat aSy, VGfloat aSz)
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{
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Identity();
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iM[0][0] = aSx;
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iM[1][1] = aSy;
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iM[2][2] = aSz;
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}
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void TMatrix::Translation(VGfloat aX, VGfloat aY, VGfloat aZ)
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{
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Identity();
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iM[3][0] = aX;
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iM[3][1] = aY;
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iM[3][2] = aZ;
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}
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// ---------------------------------------------------------------------------
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// HgVgHelper::ComputeRotationMatrixByY
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// ---------------------------------------------------------------------------
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//
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void ComputeRotationMatrixByY(VGfloat* matrix, VGfloat angle)
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{
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// Build rotation matrix around Y-axis
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double sinrad, cosrad;
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Math::Sin (sinrad, angle );
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Math::Cos (cosrad, angle );
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VGfloat sa = sinrad;
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VGfloat ca = cosrad;
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VGfloat rotMatrix[] =
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{
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ca, 0, sa,
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0, 1, 0,
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sa, 0, -ca
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};
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// copy to result.
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for (int i = 0; i < 9; i++ )
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matrix[i] = rotMatrix[i];
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}
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// ---------------------------------------------------------------------------
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// HgVgHelper::MultiplyMatrix()
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// ---------------------------------------------------------------------------
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//
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void MultiplyMatrix(VGfloat* aResult, VGfloat* aA, VGfloat* aB)
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{
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for (VGint i = 0; i < 3; ++i)
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{
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for (VGint j = 0; j < 3; ++j)
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{
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aResult[i*3+j] =
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aA[j*3+0] * aB[i*3+0] +
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aA[j*3+1] * aB[i*3+1] +
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aA[j*3+2] * aB[i*3+2];
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}
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}
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}
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// ---------------------------------------------------------------------------
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// HgVgHelper::TransformVertex
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// ---------------------------------------------------------------------------
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//
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void TransformVertex(const VGfloat* inVertex, VGfloat* outVertex,
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const VGfloat* matrix)
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{
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VGfloat x = inVertex[KVertexX];
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VGfloat y = inVertex[KVertexY];
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VGfloat z = inVertex[KVertexZ];
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outVertex[KVertexX] = x * matrix[0] + y * matrix[3] + z * matrix[6];
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419 |
outVertex[KVertexY] = x * matrix[1] + y * matrix[4] + z * matrix[7];
|
|
420 |
outVertex[KVertexZ] = x * matrix[2] + y * matrix[5] + z * matrix[8];
|
|
421 |
}
|
|
422 |
|
|
423 |
// ---------------------------------------------------------------------------
|
|
424 |
// HgVgHelper::PerspectiveTransformVertex
|
|
425 |
// ---------------------------------------------------------------------------
|
|
426 |
//
|
|
427 |
void PerspectiveTransformVertex(VGfloat* aInVertex, VGfloat* aOutVertex,
|
|
428 |
VGfloat aScreenWidth, VGfloat aScreenHeight, VGfloat aFov)
|
|
429 |
{
|
|
430 |
/* VGfloat x = inVertex[KVertexX];
|
|
431 |
VGfloat y = inVertex[KVertexY];
|
|
432 |
VGfloat z = inVertex[KVertexZ];
|
|
433 |
|
|
434 |
outVertex[KVertexX] = screenWidth * 0.5f + fov * x / z;
|
|
435 |
outVertex[KVertexY] = screenHeight * 0.5f + fov * y / z;
|
|
436 |
*/
|
|
437 |
VGfloat hw = aScreenWidth * 0.5f;
|
|
438 |
VGfloat hh = aScreenHeight * 0.5f;
|
|
439 |
VGfloat alpha = aFov / 2.0f;
|
|
440 |
double tanAlpha;
|
|
441 |
Math::Tan(tanAlpha, alpha);
|
|
442 |
VGfloat d = hw / tanAlpha;
|
|
443 |
aOutVertex[KVertexX] = (VGfloat)(hw + d * aInVertex[KVertexX] / aInVertex[KVertexZ]);
|
|
444 |
aOutVertex[KVertexY] = (VGfloat)(hh + d * aInVertex[KVertexY] / aInVertex[KVertexZ]);
|
|
445 |
|
|
446 |
}
|
|
447 |
|
|
448 |
// ---------------------------------------------------------------------------
|
|
449 |
// HgVgHelper::DrawAlphaImage()
|
|
450 |
// ---------------------------------------------------------------------------
|
|
451 |
//
|
|
452 |
void DrawImage(VGImage aImage,
|
|
453 |
const TPoint& aPos, const TRect& aWindowRect, TBool aCentered, TBool aLandscape)
|
|
454 |
{
|
|
455 |
|
|
456 |
vgSeti(VG_MATRIX_MODE, VG_MATRIX_IMAGE_USER_TO_SURFACE);
|
|
457 |
vgLoadIdentity();
|
|
458 |
if (aLandscape)
|
|
459 |
{
|
|
460 |
vgTranslate(0.0f, 640.0f);
|
|
461 |
vgRotate(-90.0f);
|
|
462 |
}
|
|
463 |
|
|
464 |
if (!aCentered)
|
|
465 |
{
|
|
466 |
vgScale(1, -1);
|
|
467 |
vgTranslate(aPos.iX, -(aWindowRect.Height() - aPos.iY));
|
|
468 |
}
|
|
469 |
else
|
|
470 |
{
|
|
471 |
VGint w = vgGetParameteri(aImage, VG_IMAGE_WIDTH);
|
|
472 |
VGint h = vgGetParameteri(aImage, VG_IMAGE_HEIGHT);
|
|
473 |
vgTranslate(aPos.iX, (aWindowRect.Height() - aPos.iY));
|
|
474 |
vgScale(1, -1);
|
|
475 |
vgTranslate(-(VGfloat)w/2,-(VGfloat)h/2);
|
|
476 |
}
|
|
477 |
|
|
478 |
vgDrawImage(aImage);
|
|
479 |
|
|
480 |
}
|
|
481 |
|
|
482 |
// ---------------------------------------------------------------------------
|
|
483 |
// HgVgHelper::DrawImageColorized
|
|
484 |
// ---------------------------------------------------------------------------
|
|
485 |
//
|
|
486 |
void DrawImageColorized(VGImage aImage, const TRgb& aColor,
|
|
487 |
const TPoint& aPos, const TRect& aWindowRect, TBool aCentered, TBool aLandscape)
|
|
488 |
{
|
|
489 |
|
|
490 |
VGfloat values[] = { 1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0 };
|
|
491 |
|
|
492 |
values[0] = (VGfloat)aColor.Red() / KColorByteToFloatFactor;
|
|
493 |
values[1] = (VGfloat)aColor.Green() / KColorByteToFloatFactor;
|
|
494 |
values[2] = (VGfloat)aColor.Blue() / KColorByteToFloatFactor;
|
|
495 |
values[3] = (VGfloat)aColor.Alpha() / KColorByteToFloatFactor;
|
|
496 |
|
|
497 |
vgSetfv(VG_COLOR_TRANSFORM_VALUES, KNumColorTransformValues, values);
|
|
498 |
vgSeti(VG_COLOR_TRANSFORM, VG_TRUE);
|
|
499 |
|
|
500 |
HgVgHelper::DrawImage(aImage, aPos, aWindowRect, aCentered, aLandscape);
|
|
501 |
|
|
502 |
vgSeti(VG_COLOR_TRANSFORM, VG_FALSE);
|
|
503 |
}
|
|
504 |
|
|
505 |
|
|
506 |
|
|
507 |
// ---------------------------------------------------------------------------
|
|
508 |
// HgVgHelper::CreatePath()
|
|
509 |
// ---------------------------------------------------------------------------
|
|
510 |
//
|
|
511 |
VGPath CreatePath(VGuint aNumSegments, const VGubyte* aSegments, const VGfloat* aPoints)
|
|
512 |
{
|
|
513 |
VGPath path = vgCreatePath(VG_PATH_FORMAT_STANDARD, VG_PATH_DATATYPE_F,
|
|
514 |
1.0f, 0.0f, 4, 4, (unsigned int)VG_PATH_CAPABILITY_ALL);
|
|
515 |
|
|
516 |
vgAppendPathData(path, aNumSegments, aSegments, aPoints);
|
|
517 |
|
|
518 |
return path;
|
|
519 |
}
|
|
520 |
|
|
521 |
// ---------------------------------------------------------------------------
|
|
522 |
// HgVgHelper::CreateColorPaint()
|
|
523 |
// ---------------------------------------------------------------------------
|
|
524 |
//
|
|
525 |
VGPaint CreateColorPaint(const VGfloat* aColor)
|
|
526 |
{
|
|
527 |
VGPaint paint = vgCreatePaint();
|
|
528 |
|
|
529 |
vgSetParameteri(paint, VG_PAINT_TYPE,
|
|
530 |
VG_PAINT_TYPE_COLOR);
|
|
531 |
|
|
532 |
vgSetParameterfv(paint, VG_PAINT_COLOR,
|
|
533 |
KNumColorValues, aColor);
|
|
534 |
|
|
535 |
return paint;
|
|
536 |
}
|
|
537 |
|
|
538 |
// ---------------------------------------------------------------------------
|
|
539 |
// HgVgHelper::CreateColorPaint()
|
|
540 |
// ---------------------------------------------------------------------------
|
|
541 |
//
|
|
542 |
VGPaint CreateColorPaint(const TRgb& aColor)
|
|
543 |
{
|
|
544 |
VGfloat values[4];
|
|
545 |
|
|
546 |
values[0] = (VGfloat)aColor.Red() / KColorByteToFloatFactor;
|
|
547 |
values[1] = (VGfloat)aColor.Green() / KColorByteToFloatFactor;
|
|
548 |
values[2] = (VGfloat)aColor.Blue() / KColorByteToFloatFactor;
|
|
549 |
values[3] = (VGfloat)aColor.Alpha() / KColorByteToFloatFactor;
|
|
550 |
|
|
551 |
return CreateColorPaint(values);
|
|
552 |
}
|
|
553 |
|
|
554 |
}
|
|
555 |
|
|
556 |
// End of File
|