void CImageMixer_VMR9::Clear()
{
if (m_hdc!=NULL) {
IVMRMixerBitmap9 *pMixerBitmap;
VMR9AlphaBitmap ab;
m_pRenderer->QueryInterface(IID_IVMRMixerBitmap9,
reinterpret_cast<LPVOID*>(&pMixerBitmap));
ab.dwFlags=VMR9AlphaBitmap_Disable;
ab.fAlpha=0.0f;
pMixerBitmap->UpdateAlphaBitmapParameters(&ab);
pMixerBitmap->Release();
}
}
/******************************Public*Routine******************************\
* SetAppImage
*
\**************************************************************************/
HRESULT
CMovie::SetAppImage(
VMR9AlphaBitmap* lpBmpInfo
)
{
IVMRMixerBitmap9* pBmp;
HRESULT hres = m_Wc->QueryInterface(IID_IVMRMixerBitmap9, (LPVOID *)&pBmp);
if(SUCCEEDED(hres))
{
hres = pBmp->SetAlphaBitmap(lpBmpInfo);
pBmp->Release();
}
return hres;
}
/******************************Public*Routine******************************\
* UpdateAppImage
*
\**************************************************************************/
HRESULT
CMovie::UpdateAppImage(VMR9AlphaBitmap* lpBmpInfo)
{
IVMRMixerBitmap9* pBmp;
if (!m_Wc)
return S_FALSE;
HRESULT hres = m_Wc->QueryInterface(IID_IVMRMixerBitmap9, (LPVOID *)&pBmp);
if(SUCCEEDED(hres))
{
hres = pBmp->UpdateAlphaBitmapParameters(lpBmpInfo);
pBmp->Release();
}
return hres;
}
bool CImageMixer_VMR9::SetBitmap(HBITMAP hbm,int Opacity,COLORREF TransColor,RECT *pDestRect)
{
IVMRMixerBitmap9 *pMixerBitmap;
IVMRWindowlessControl9 *pWindowlessControl;
LONG NativeWidth,NativeHeight;
BITMAP bm;
VMR9AlphaBitmap ab;
HRESULT hr;
if (!CreateMemDC())
return false;
if (FAILED(m_pRenderer->QueryInterface(IID_IVMRMixerBitmap9,
reinterpret_cast<LPVOID*>(&pMixerBitmap))))
return false;
m_pRenderer->QueryInterface(IID_IVMRWindowlessControl9,
reinterpret_cast<LPVOID*>(&pWindowlessControl));
if (FAILED(pWindowlessControl->GetNativeVideoSize(&NativeWidth,&NativeHeight,
NULL,NULL))
|| NativeWidth==0 || NativeHeight==0) {
NativeWidth=1440;
NativeHeight=1080;
}
pWindowlessControl->Release();
::SelectObject(m_hdc,hbm);
ab.dwFlags=VMR9AlphaBitmap_hDC;
if (TransColor!=CLR_INVALID)
ab.dwFlags|=VMR9AlphaBitmap_SrcColorKey;
ab.hdc=m_hdc;
ab.pDDS=NULL;
::GetObject(hbm,sizeof(BITMAP),&bm);
::SetRect(&ab.rSrc,0,0,bm.bmWidth,bm.bmHeight);
ab.rDest.left=(float)pDestRect->left/(float)NativeWidth;
ab.rDest.top=(float)pDestRect->top/(float)NativeHeight;
ab.rDest.right=(float)pDestRect->right/(float)NativeWidth;
ab.rDest.bottom=(float)pDestRect->bottom/(float)NativeHeight;
ab.fAlpha=(float)Opacity/100.0f;
ab.clrSrcKey=TransColor;
hr=pMixerBitmap->SetAlphaBitmap(&ab);
pMixerBitmap->Release();
if (FAILED(hr)) {
::SelectObject(m_hdc,m_hbmOld);
return false;
}
return true;
}
