minisite.cpp

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: minisite.cpp,v 1.16.2.3 2004/07/09 01:59:28 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
 * are subject to the current version of the RealNetworks Public
 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
 * RealNetworks.  You may not use this file except in compliance with
 * the RPSL or, if you have a valid RCSL with RealNetworks applicable
 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
 * contents of the file.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
 * or RCSL, indicate your decision by deleting the provisions above
 * and replace them with the notice and other provisions required by
 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
 * portions it created.
 * 
 * This file, and the files included with this file, is distributed
 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
 * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
 * ENJOYMENT OR NON-INFRINGEMENT.
 * 
 * Technology Compatibility Kit Test Suite(s) Location:
 *    http://www.helixcommunity.org/content/tck
 * 
 * Contributor(s):
 * 
 * ***** END LICENSE BLOCK ***** */

#include "minisite.h"
#include "hxvsurf.h"
#include "hxtick.h"
#include "minisurf.h"

CMiniBaseSite::CMiniBaseSite(IUnknown* pContext,
                             IUnknown* pUnkOuter,
                             INT32 lZorder)
    :  m_pContext(pContext),
       m_pCCF(NULL),
       m_pUser(NULL),
       m_pWatcher(NULL),
       m_pValues(NULL),
       m_pVideoSurface(NULL),
       m_pWindow(NULL),
       m_lRefCount(0),
       m_lZOrder(lZorder),
#if defined (HELIX_FEATURE_SMIL_SITE)
       m_pTopLevelSite(NULL),
       m_pParentSite(NULL),
       m_Region(NULL),
       m_RegionWithoutChildren(NULL),
       m_bIsVisible(TRUE),
       m_CallbackHandle(0),
       m_pScheduler(NULL),
       m_bfCallBacks(0),
       m_ulCallbackTime(0),
#endif
       m_bWindowCreatedByCreate(FALSE)
{

    memset(&m_size,      0, sizeof(m_size));
    memset(&m_position , 0, sizeof(m_position ));
#if defined (HELIX_FEATURE_SMIL_SITE)
    m_pTopLevelSite = this;
    memset(&m_topleft ,  0, sizeof(m_topleft ));
    memset(&m_TopLevelWindow , 0, sizeof(m_TopLevelWindow ));
    if( m_pContext )
    {
        m_pContext->QueryInterface(IID_IHXScheduler, (void**)&m_pScheduler);
    }
    HX_ASSERT(m_pScheduler);
#endif
    if(m_pContext)
    {
        m_pContext->AddRef();
        
        // get the CCF 
        m_pContext->QueryInterface(IID_IHXCommonClassFactory,
                                   (void**)&m_pCCF);

        if( m_pCCF )
        {
            m_pCCF->CreateInstance(CLSID_IHXValues, (void**)&m_pValues);
        }
    }


    m_pVideoSurface = CMiniBaseSurface::Create(m_pContext, this);
    m_pVideoSurface->AddRef();
}

CMiniBaseSite::~CMiniBaseSite()
{
    // release intefaces
    HX_RELEASE(m_pValues);
    HX_RELEASE(m_pCCF);
    HX_RELEASE(m_pContext);
    HX_RELEASE(m_pVideoSurface);

#if defined(HELIX_FEATURE_SMIL_SITE)
    if( m_CallbackHandle )
    {
        if( m_pScheduler)
            m_pScheduler->Remove(m_CallbackHandle);
        m_CallbackHandle = 0;
    }

    HX_RELEASE(m_pScheduler);
    
    m_ChildrenInZOrder.RemoveAll();

    //clean up passive site watchers
    while(m_PassiveSiteWatchers.GetCount())
    {
        IHXPassiveSiteWatcher* pWatcher =
            (IHXPassiveSiteWatcher*)m_PassiveSiteWatchers.GetHead();
        HX_RELEASE(pWatcher);
        m_PassiveSiteWatchers.RemoveHead();
    }
    
#endif    
}


/************************************************************************
 *  Method:
 *    IUnknown::QueryInterface
 */
STDMETHODIMP CMiniBaseSite::QueryInterface(REFIID riid, void** ppvObj)
{
    if(IsEqualIID(riid, IID_IUnknown))
    {
        *ppvObj = (IUnknown*)(IHXSite*)this;
    }
    else if (IsEqualIID(riid, IID_IHXSite))
    {
        *ppvObj = (IHXSite*)this;
    }

#if defined (HELIX_FEATURE_SMIL_SITE)    
    else if (IsEqualIID(riid, IID_IHXSite2))
    {
        *ppvObj = (IHXSite2*)this;
    }
    else if (IsEqualIID(riid, IID_IHXSiteControl))
    {
        *ppvObj = (IHXSiteControl*)this;
    }
#endif //HELIX_FEATURE_SMIL_SITE
    
    else if (IsEqualIID(riid, IID_IHXSiteWindowed))
    {
        *ppvObj = (IHXSiteWindowed*)this;
    }
    else if (m_pValues &&
             m_pValues->QueryInterface(riid, ppvObj) == HXR_OK)
    {
        return HXR_OK;
    }
    else
    {
        *ppvObj = NULL;
        return HXR_NOINTERFACE;
    }

    AddRef();
    return HXR_OK;
}

/************************************************************************
 *  Method:
 *    IUnknown::AddRef
 */
STDMETHODIMP_(ULONG32) CMiniBaseSite::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}


/************************************************************************
 *  Method:
 *    IUnknown::Release
 */
STDMETHODIMP_(ULONG32) CMiniBaseSite::Release()
{
    if (InterlockedDecrement(&m_lRefCount) > 0)
    {
        return m_lRefCount;
    }

    delete this;
    return 0;
}

/************************************************************************
 *  Method:
 *    CMiniBaseSite::AttachWindow
 */
STDMETHODIMP CMiniBaseSite::AttachWindow(HXxWindow* pWindow)
{
    if (m_pWindow && m_pWindow->window)
        return HXR_UNEXPECTED;

    m_pWindow = pWindow;

#if defined(HELIX_FEATURE_SMIL_SITE)
    if (!m_pParentSite)
    {
        memcpy(&m_TopLevelWindow,
               pWindow,
               sizeof(HXxWindow)); /* Flawfinder: ignore */
    }
#endif
    
    _AttachWindow();

    if (m_pUser)
    {
        // send HX_ATTACH_WINDOW msg to the renderers
        void *  lpParam1 = NULL;
        void *  lpParam2 = NULL;

        HXxEvent event = {HX_ATTACH_WINDOW,
                          m_pWindow ? m_pWindow->window : NULL,
                          lpParam1, lpParam2,
                          0, 0 };

        m_pUser->HandleEvent(&event);     
    }
   
    return HXR_OK;
}


/************************************************************************
 *  Method:
 *    IHXSiteWindowed::DetachWindow
 */
STDMETHODIMP CMiniBaseSite::DetachWindow()
{
    if (!m_pWindow || !m_pWindow->window)
        return HXR_UNEXPECTED;
    
    if (m_pUser)
    {
        // send HX_DETACH_WINDOW msg to the renderers
        void *  lpParam1 = NULL;
        void *  lpParam2 = NULL;
        HXxEvent event = {HX_DETACH_WINDOW, m_pWindow ? m_pWindow->window : NULL, lpParam1, lpParam2, 0, 0};
 
        m_pUser->HandleEvent(&event);
    }

    // let the OS specific site do its cleanup.
    _DetachWindow();
    m_pWindow = NULL;

#if defined(HELIX_FEATURE_SMIL_SITE)
    if (m_pTopLevelSite == this)
    {
        if (m_CallbackHandle)
        {
            if( m_pScheduler )
                m_pScheduler->Remove(m_CallbackHandle);
            m_CallbackHandle = 0;
        }
    }
#endif

    return HXR_OK;
}

/************************************************************************
 *  Method:
 *    IHXSiteWindowed::Create
 */
STDMETHODIMP CMiniBaseSite::Create(void* ParentWindow, UINT32 style)
{
    HRESULT retVal = HXR_OK;
    
    if( m_pWindow && m_pWindow->window )
    {
        //We already have one.
        return HXR_FAIL;
    }
   
    void* hWnd = _Create(ParentWindow, style);

    if (!hWnd)
    {
        retVal = HXR_FAIL;
    }
    else
    {
        HXxWindow* pWindow = new HXxWindow;
        memset(pWindow,0,sizeof(HXxWindow));
        pWindow->window = hWnd;

        //This flags tells us if Create was used to make the window
        //or not. We use this in SetSize and SetPosition so that we
        //never resize or move the TLCs window. But, in TLC that call
        //create, like testplay, we need to do the move and resize
        //for them.
        m_bWindowCreatedByCreate = TRUE;
      
        //This way we always pass through attach window.
        AttachWindow(pWindow);
    }
    
    return retVal;
}

/************************************************************************
 *  Method:
 *    IHXSiteWindowed::Destroy
 */
STDMETHODIMP CMiniBaseSite::Destroy() 
{
    //This could be the site that owns the overlay even though
    //it doesn't have a window. Give it a chance to clean up
    //here...
    if( m_pVideoSurface )
    {
        m_pVideoSurface->EndOptimizedBlt();
    }
    
    if(!m_pWindow || !m_pWindow->window)
    {
        return HXR_UNEXPECTED;
    }

    HXxWindow tempWindow;
    memcpy( &tempWindow, m_pWindow, sizeof( HXxWindow ) ); /* Flawfinder: ignore */
    DetachWindow();
    _Destroy(&tempWindow);
    m_pWindow = NULL;

    return HXR_OK;
}

STDMETHODIMP_(HXxWindow*) CMiniBaseSite::GetWindow() 
{
    HXxWindow* pRet = m_pWindow;

#if defined(HELIX_FEATURE_SMIL_SITE)    
    if( m_pTopLevelSite != this && m_pParentSite )
        pRet = m_pParentSite->GetWindow();
#endif    
    return pRet;
}

/************************************************************************
 *  Method:
 *    IHXSite::AttachUser
 */
STDMETHODIMP CMiniBaseSite::AttachUser(IHXSiteUser* /*IN*/ pUser)
{
    if (m_pUser)
        return HXR_UNEXPECTED;

    m_pUser = pUser;
    m_pUser->AddRef();

    m_pUser->AttachSite(this);

    /*if (m_bAttachWindowPending)
      {
      m_bAttachWindowPending = FALSE;
      m_bDetachWndMsgPending = TRUE;
      // send HX_ATTACH_WINDOW msg to the renderers
      void *  lpParam1 = NULL;
      void *  lpParam2 = NULL;

      HXxEvent event = {HX_ATTACH_WINDOW, m_pWindow ? m_pWindow->window : NULL, lpParam1, lpParam2, 0, 0};
      m_pUser->HandleEvent(&event);     
      }*/

    return HXR_OK;
}

/************************************************************************
 *  Method:
 *    IHXSite::DetachUser
 */
STDMETHODIMP CMiniBaseSite::DetachUser()