示例#1
0
// *************************************************************
//		GetImageAttributes()
// *************************************************************
Gdiplus::ImageAttributes* ImageHelper::GetImageAttributes(IImage* img)
{
	if (!img) return NULL;

	Gdiplus::ImageAttributes* attr = new Gdiplus::ImageAttributes();

	attr->SetWrapMode(Gdiplus::WrapModeTileFlipXY);

	VARIANT_BOOL useTransparency;
	img->get_UseTransparencyColor(&useTransparency);

	OLE_COLOR clr1, clr2;
	img->get_TransparencyColor(&clr1);
	img->get_TransparencyColor2(&clr2);

	SetTransparency(*attr, useTransparency ? true : false, clr1, clr2);

	Gdiplus::ColorMatrix m = GetColorMatrix(img);
	attr->SetColorMatrix(&m);

	Gdiplus::REAL gamma;	
	img->get_Gamma(&gamma);
	attr->SetGamma(gamma);

	return attr;
}
示例#2
0
    void CanvasGdiplus::RestoreLayer()
    {
        DCHECK(layers_.size());
        
        CanvasLayer* layer = layers_.top();
        layers_.pop();
        DCHECK(layer);

        Gdiplus::Graphics* current = GetCurrentGraphics();
        Gdiplus::Bitmap* native_bitmap =
            layer->mem_bitmap.GetNativeBitmap();
        Gdiplus::ImageAttributes ia;
        Gdiplus::ColorMatrix cm =
        {
            1.0, 0.0, 0.0, 0.0, 0.0,
            0.0, 1.0, 0.0, 0.0, 0.0,
            0.0, 0.0, 1.0, 0.0, 0.0,
            0.0, 0.0, 0.0, (static_cast<float>(layer->alpha))/255, 0.0,
            0.0, 0.0, 0.0, 0.0, 1.0
        };
        ia.SetColorMatrix(&cm);
        Gdiplus::Rect destRect(layer->bounds.x(), layer->bounds.y(),
            layer->bounds.width(), layer->bounds.height());
        current->DrawImage(native_bitmap, destRect,
            layer->bounds.x(), layer->bounds.y(),
            layer->bounds.width(), layer->bounds.height(),
            Gdiplus::UnitPixel, &ia);

        delete layer;
    }
void ImageAttributes::SetColorMatrix(const ColorMatrix* cm) {
    Gdiplus::ColorMatrix gdiMatrix;
    for(int a = 0; a < 5; a++) {
        for(int b = 0; b < 5; b++) {
            gdiMatrix.m[a][b] = cm->m[a][b];
        }
    }

    Gdiplus::ImageAttributes* ia = reinterpret_cast<Gdiplus::ImageAttributes*>(_private);
    ia->SetColorMatrix(&gdiMatrix);
}
示例#4
0
文件: splash.cpp 项目: bilboftw/Rippl
void Splash::DrawPNG(PNG* lpPNG, ColorMatrix* cmMatrix)
{
	// Check alpha
	if(lpPNG->fAlpha <= 0.0f) return;

	// Check cmMatrix for null
	if(cmMatrix == NULL) cmMatrix = &ClrMatrix;

	// Set alpha
	cmMatrix->m[3][3] = lpPNG->fAlpha;
	Gdiplus::ImageAttributes iaAttr;
	iaAttr.SetColorMatrix(cmMatrix, ColorMatrixFlagsDefault, ColorAdjustTypeBitmap);
	
	// Draw
	_oGrphInf.graphics->DrawImage(lpPNG->GetImage(), *lpPNG->frcDest, lpPNG->frcSrc->X, lpPNG->frcSrc->Y, lpPNG->frcSrc->Width, lpPNG->frcSrc->Height, Gdiplus::UnitPixel, &iaAttr);
	_oGrphInf.graphics->Flush();
}
示例#5
0
// *************************************************************
//		GetImageAttributes()
// *************************************************************
Gdiplus::ImageAttributes* ImageHelper::GetImageAttributes(float alpha, bool useTransparency, OLE_COLOR clr1, OLE_COLOR clr2)
{
	Gdiplus::ImageAttributes* attr = new Gdiplus::ImageAttributes();

	attr->SetWrapMode(Gdiplus::WrapModeTileFlipXY);

	Gdiplus::ColorMatrix matrix;

	ZeroMemory((void*)&matrix.m, 25 * sizeof(REAL));
	for (int i = 0; i < 5; i++) matrix.m[i][i] = 1.0f;

	matrix.m[3][3] = alpha;
	attr->SetColorMatrix(&matrix);

	SetTransparency(*attr, useTransparency, clr1, clr2);

	return attr;
}
示例#6
0
BOOL CDuiImgX::StretchBlt(HDC hdc,int x,int y,int nWid,int nHei,int xSrc,int ySrc,int nWidSrc,int nHeiSrc,BYTE byAlpha/*=0xFF*/)
{
    if(IsEmpty()) return FALSE;
    Gdiplus::Graphics graphics(hdc);
	Gdiplus::ImageAttributes ImgAtt;
	ImgAtt.SetWrapMode(Gdiplus::WrapModeTileFlipXY);
    if(byAlpha!=0xFF)
    {
        Gdiplus::ColorMatrix ClrMatrix =
        {
            1.0f, 0.0f, 0.0f, 0.0f, 0.0f,
            0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
            0.0f, 0.0f, 1.0f, 0.0f, 0.0f,
            0.0f, 0.0f, 0.0f, float(byAlpha)/0xFF, 0.0f,
            0.0f, 0.0f, 0.0f, 0.0f, 1.0f
        };
        ImgAtt.SetColorMatrix(&ClrMatrix);
    }

    return S_OK==graphics.DrawImage(m_pImg,Gdiplus::Rect(x,y,nWid,nHei),xSrc,ySrc,nWidSrc,nHeiSrc,Gdiplus::UnitPixel,&ImgAtt);
}
//-----------------------------------------------------------------------------
void GdiplusDrawContext::drawBitmap (CBitmap* cbitmap, const CRect& dest, const CPoint& offset, float alpha)
{
	alpha *= currentState.globalAlpha;
	if (alpha == 0.f || pGraphics == 0)
		return;
	IPlatformBitmap* platformBitmap = cbitmap ? cbitmap->getPlatformBitmap () : 0;
	GdiplusBitmap* gpb = platformBitmap ? dynamic_cast<GdiplusBitmap*> (platformBitmap) : 0;
	Gdiplus::Bitmap* bitmap = gpb ? gpb->getBitmap () : 0;
	if (bitmap)
	{
		GdiplusDrawScope drawScope (pGraphics, currentState.clipRect, getCurrentTransform ());

		Gdiplus::ImageAttributes imageAtt;
		if (alpha != 1.f)
		{
			// introducing the alpha blend matrix
			Gdiplus::ColorMatrix colorMatrix =
			{
				1.0f, 0.0f, 0.0f, 0.0f, 0.0f,
				0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
				0.0f, 0.0f, 1.0f, 0.0f, 0.0f,
				0.0f, 0.0f, 0.0f, alpha, 0.0f,
				0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
			};
			// create the imageattribute modifier
			imageAtt.SetColorMatrix (&colorMatrix, Gdiplus::ColorMatrixFlagsDefault,
				Gdiplus::ColorAdjustTypeBitmap);
#if 1
			Gdiplus::Rect	myDestRect(
				(INT)dest.left,
				(INT)dest.top,
				(INT)dest.getWidth (),
				(INT)dest.getHeight ());
			pGraphics->DrawImage (
				bitmap,
				myDestRect,
				(INT)offset.x,
				(INT)offset.y,
				(INT)dest.getWidth (),
				(INT)dest.getHeight (),
				Gdiplus::UnitPixel,
				&imageAtt);
#else
			// create a temporary bitmap to prevent OutOfMemory errors
			Gdiplus::Bitmap myBitmapBuffer ((INT)dest.getWidth (), (INT)dest.getHeight (),PixelFormat32bppARGB);
			// create a graphics context for the temporary bitmap
			Gdiplus::Graphics* myGraphicsBuffer = Gdiplus::Graphics::FromImage (&myBitmapBuffer);
			// copy the rectangle we want to paint to the temporary bitmap
			Gdiplus::Rect myTransRect(
				0,
				0,
				(INT)dest.getWidth (),
				(INT)dest.getHeight ());
			// transfer the bitmap (without modification by imageattr!)
			myGraphicsBuffer->DrawImage (
				bitmap,myTransRect,
				(INT)offset.x,
				(INT)offset.y,
				(INT)dest.getWidth (),
				(INT)dest.getHeight (),
				Gdiplus::UnitPixel,
				0);
			// now transfer the temporary to the real context at the advised location
			Gdiplus::Rect myDestRect (
				(INT)dest.left,
				(INT)dest.top,
				(INT)dest.getWidth (),
				(INT)dest.getHeight ());
			// transfer from temporary bitmap to real context (with imageattr)
			pGraphics->DrawImage (
				&myBitmapBuffer,
				myDestRect,
				(INT)0,
				(INT)0,
				(INT)dest.getWidth (),
				(INT)dest.getHeight (),
				Gdiplus::UnitPixel,
				&imageAtt);
			// delete the temporary context of the temporary bitmap
			delete myGraphicsBuffer;
#endif
		}
		else
		{
			Gdiplus::Rect	myDestRect(
				(INT)dest.left,
				(INT)dest.top,
				(INT)dest.getWidth (),
				(INT)dest.getHeight ());
			pGraphics->DrawImage (
				bitmap,
				myDestRect,
				(INT)offset.x,
				(INT)offset.y,
				(INT)dest.getWidth (),
				(INT)dest.getHeight (),
				Gdiplus::UnitPixel,
				0);
		}
	}
}
示例#8
0
文件: ImageImpl.cpp 项目: fffonion/V8
HRESULT CImageImpl::Render(HDC hDC, LPCRECT pDstRect, LPCRECT pSrcRect, LPCRECT pBoundRect)
{
    USE_CLASS_DATA(CLASS_DATA_MEMBER_LIST);

    UNREFERENCED_PARAMETER(pSrcRect);
    UNREFERENCED_PARAMETER(pBoundRect);

    if (m_pImage == NULL)
        return S_FALSE;

    BOOL bGray = m_pImage->IsGrayScale();
    UINT uFrames = 0;
    if (S_OK == GetNumFrames(&uFrames) && uFrames > 1) 
    {
        if (bGray)
        {
            //填充白色
            HBRUSH hBrush = ::CreateSolidBrush(RGB(255, 255, 255));
            ::FillRect(hDC, pDstRect, hBrush);
            ::DeleteObject(hBrush);

            try
            {
                //去alpha矩阵,未实现
                static Gdiplus::ColorMatrix removeAlphaMatrix = 
                {
                    1.0f, 0.0f, 0.0f, 0.0f, 0.0f,
                    0.0f, 1.0f, 0.0f, 0.0f, 0.0f,
                    0.0f, 0.0f, 1.0f, 0.0f, 0.0f,
                    0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
                    0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
                };

                //去色矩阵
                static Gdiplus::ColorMatrix grayMatrix = 
                {
                    0.3f, 0.3f, 0.3f, 0.0f, 0.0f,
                    0.59f, 0.59f, 0.59f, 0.0f, 0.0f,
                    0.11f, 0.11f, 0.11f, 0.0f, 0.0f,
                    0.0f, 0.0f, 0.0f, 1.0f, 0.0f,
                    0.0f, 0.0f, 0.0f, 0.0f, 1.0f,
                };

                //选择第一帧
                GUID guidGif = Gdiplus::FrameDimensionTime;
                m_pBitmap->SelectActiveFrame(&guidGif, 0);

                CRect dstRect = *pDstRect;
                Gdiplus::Rect rcDraw(dstRect.left, dstRect.top, (dstRect.right - dstRect.left), (dstRect.bottom - dstRect.top));
                Gdiplus::Graphics graphics(hDC);
                Gdiplus::ImageAttributes *pImageAttributes = new Gdiplus::ImageAttributes();
                pImageAttributes->SetColorMatrix(&grayMatrix);
                Gdiplus::Status ret = graphics.DrawImage(m_pBitmap, 
                    rcDraw, 
                    0, 0, m_pBitmap->GetWidth(), m_pBitmap->GetHeight(), 
                    Gdiplus::UnitPixel, pImageAttributes);
                delete pImageAttributes;

                if (ret == Gdiplus::Ok)
                    return S_OK;
            }
            catch (...)
            {
            }
        } 
        else 
        {
            //填充白色
            ::FillRect(hDC, pDstRect, (HBRUSH)::GetStockObject(WHITE_BRUSH));

            if (S_OK == RenderFrame(hDC, 0, pDstRect))
                return S_OK;
        }

    }

    if (! m_pImage->AlphaIsValid()) 
    {
        if (! m_pImage->Stretch(hDC, *pDstRect))
            return S_FALSE;
    }
    else 
    {
        if (! m_pImage->Draw(hDC, *pDstRect))
            return S_FALSE;
    }

    return S_OK;
}