pxgifrnd.cpp

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/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: pxgifrnd.cpp,v 1.10.6.2 2004/07/09 12:55:11 pankajgupta 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
#include "hxtypes.h"
#include "hxwintyp.h"
#include "hxcom.h"
#include "hxassert.h"

#include <stdio.h>
#ifdef _WINDOWS
#include <windows.h>
#include "platform/win/resource.h"
#endif
#if defined(_UNIX) && defined(USE_XWINDOWS)
#include <X11/cursorfont.h>
#include <X11/Intrinsic.h>
#endif
#ifdef _MACINTOSH
#include <ctype.h>
#include "platform/mac/cresload.h"
extern FSSpec g_DLLFSpec;
//CResourceLoader* CResourceLoader::zm_theResourceLoader = NULL;
#endif

//Mini sites don't support ARGB blt'ing.
//Should break this out into a ALPHA_SUPPORTED feature.
#if !defined(HELIX_FEATURE_MINI_SITE)
#  define ARGB_CID HX_ARGB
#else
#  define ARGB_CID HX_RGB
#endif

#include "hxcomm.h"
#include "ihxpckts.h"
#include "hxfiles.h"
#include "hxcore.h"
#include "hxrendr.h"
#include "hxhyper.h"
#include "hxplugn.h"
#include "hxwin.h"
#include "hxasm.h"
#include "hxevent.h"
#include "hxvsurf.h"
#include "hxver.h"
#include "hxupgrd.h"
#include "hxengin.h"
#include "hxmon.h"
#include "hxerror.h"
#include "hxclsnk.h"
#include "hxprefs.h"
#include "addupcol.h"
#include "hxstrutl.h"
#include "netbyte.h"
#include "unkimp.h"
#include "baseobj.h"
#include "hxparse.h"
#include "hxtick.h"
#include "hxbuffer.h"
#include "hxstring.h"
#include "gstring.h"
#include "glist.h"
#include "pxutil.h"
#include "pxrect.h"
#include "pxcolor.h"
#include "pxeffect.h"
#include "parseurl.h"
#include "pxcallbk.h"
#include "pximage.h"
#include "makebomb.h"
#include "pxtransp.h"
#include "cladvsnk.h"
#include "baseobj.h"
#include "unkimp.h"
#include "lzw.h"
#include "gifimage.h"
#include "gifcodec.h"
#include "gifrmlog.h"
#include "pxgifrnd.h"
#include "gifrdll.ver"

#include "debugout.h"
#include "hxheap.h"
#ifdef _DEBUG
#undef HX_THIS_FILE     
static const char HX_THIS_FILE[] = __FILE__;
#endif
#include "errdbg.h"

#ifdef _AIX
#include "dllpath.h"
ENABLE_MULTILOAD_DLLACCESS_PATHS(Pxgifrnd);
#endif

const char * const CGIFRenderer::m_pszName                          = "GIF";
const char * const CGIFRenderer::m_pszDescription                   = "Helix GIF Renderer Plugin";
const char * const CGIFRenderer::m_pszCopyright                     = HXVER_COPYRIGHT;
const char * const CGIFRenderer::m_pszMoreInfoURL                   = HXVER_MOREINFO;
const char * const CGIFRenderer::m_ppszStreamMimeType[]             = {"application/vnd.rn-gifstream", 
                                                                 "application/vnd.rn-gifstream2",
                                                                 "application/vnd.rn-gifstream3",
                                                                 NULL};
const UINT32 CGIFRenderer::m_ulHighestSupportedContentVersion = HX_ENCODE_PROD_VERSION(0, 0, 0, 0);
const UINT32 CGIFRenderer::m_ulHighestSupportedStreamVersion  = HX_ENCODE_PROD_VERSION(0, 1, 0, 0);

#ifdef _WINDOWS
extern HINSTANCE g_hInstance;
#endif

CGIFRenderer::CGIFRenderer()
{
    MLOG_LEAK("CON CGIFRenderer this=0x%08x\n", this);
    m_lRefCount            = 0;
    m_pContext             = NULL;
    m_pStream              = NULL;
    m_cSize.cx             = 0;
    m_cSize.cy             = 0;
    m_pMISUS               = NULL;
    m_pMISUSSite           = NULL;
    m_pCommonClassFactory  = NULL;
    m_pHyperNavigate       = NULL;
    m_pStatusMessage       = NULL;
    m_pGIFCodec            = NULL;
    m_ulPadWidth           = 0;
    m_bDecompressFinished  = FALSE;
    m_ulCurImg             = 0;
    m_ulCurImgRenderTime   = 0;
    m_pOutputBuffer        = NULL;
    m_ucTarget             = kTargetBrowser;
    m_cURL                 = "";
    m_ulBackgroundColor    = 0x00FFFFFF;
    m_pScheduler           = NULL;
    m_ulDataWidth          = 0;
    m_ulLoopsDone          = 0;
    m_ulBitsPerPixel       = 32;
    m_ulBytesPerPixel      = 4;
    m_bRGBOrdering         = TestBigEndian();
    m_bFirstTimeSync       = TRUE;
    m_bFirstDraw           = TRUE;
    m_lLastImg             = -1;
    m_bSiteAttached        = FALSE;
    m_ulCurDelayTime       = 0;
    m_pErrorMessages       = NULL;
#if defined(_WINDOWS)
    m_bRowsInverted        = TRUE;
#elif defined(_MACINTOSH)
    m_bRowsInverted        = FALSE;
#elif defined(_UNIX)
    m_bRowsInverted        = FALSE;
#endif
    m_bStatusMsgWillNeedErasing = FALSE;
    m_bSetHyperlinkCursor    = FALSE;
    m_sOldMouseX             = -1;
    m_sOldMouseY             = -1;
#if defined(_WINDOWS)
    m_hPreHyperlinkCursor    = NULL;
    m_hHyperlinkCursor       = NULL;
#elif defined(_MACINTOSH)
    const short HAND_CURSOR  = 1313;
    m_pResourceLoader = CResourceLoader::CreateInstance(g_DLLFSpec);
    m_hHyperlinkCursor = (CursHandle)m_pResourceLoader->LoadResource('CURS', HAND_CURSOR);
    m_eCurrentCursor         = CURSOR_ARROW;
#elif defined(_UNIX) && defined(USE_XWINDOWS)
    m_pDisplay             = 0;
    m_Window               = 0;
    m_hHyperlinkCursor     = -1;
    m_hCurrentCursor       = -1;
#endif
    m_pStreamHeaderBuffer  = NULL;
    m_ulStreamHeaderOffset = 0;
    m_bIgnorePackets       = FALSE;
    m_pCallback            = NULL;
    m_bImageBombed         = FALSE;
    m_ulRendererFlags      = 0;
    m_ulWidth              = 0;
    m_ulHeight             = 0;
    m_pValues              = NULL;
    m_ulBackgroundOpacity         = 255;
    m_ulMediaOpacity              = 255;
    m_ulMediaChromaKey            = 0;
    m_bMediaChromaKeySpecified    = FALSE;
    m_ulMediaChromaKeyTolerance   = 0;
    m_ulMediaChromaKeyOpacity     = 0;
    m_bUsesAlphaChannel           = FALSE;
    m_bPreserveMediaRepeat        = TRUE;
    m_bPaused                     = FALSE;
    m_lTimeOffset                 = 0;
    m_tSchedulerTimeBase.tv_sec   = 0;
    m_tSchedulerTimeBase.tv_usec  = 0;
    m_ulTimeAtSchedulerTimeBase   = 0;
    m_ulCurFrameIndex             = 0xFFFFFFFF;
    m_pClientAdviseSink           = NULL;
    m_ulEndTime                   = 0;
    m_bNoNativeSize               = FALSE;
    m_bCanBltSubRects             = FALSE;
}

CGIFRenderer::~CGIFRenderer()
{
    MLOG_LEAK("DES CGIFRenderer this=0x%08x\n", this);
    if (m_pCallback)
    {
        if (m_pCallback->IsCallbackPending())
        {
            m_pCallback->RemovePendingCallback();
        }
    }
    if (m_pClientAdviseSink)
    {
        m_pClientAdviseSink->Close();
    }
    HX_RELEASE(m_pStatusMessage);
    HX_RELEASE(m_pOutputBuffer);
    HX_RELEASE(m_pContext);
    HX_RELEASE(m_pCommonClassFactory);
    HX_RELEASE(m_pHyperNavigate);
    HX_DELETE(m_pGIFCodec);
    HX_RELEASE(m_pScheduler);
    HX_RELEASE(m_pErrorMessages);
    
#if defined(_MACINTOSH)
    if (m_hHyperlinkCursor)
    {
        m_pResourceLoader->UnloadResource((Handle)m_hHyperlinkCursor);
        m_hHyperlinkCursor = NULL;
        
        HX_RELEASE(m_pResourceLoader);
    }
#endif
#if defined(_UNIX) && defined(USE_XWINDOWS)
    if ((m_hHyperlinkCursor != -1) && m_pDisplay)
    {
    XLockDisplay(m_pDisplay);
    XFreeCursor(m_pDisplay, m_hHyperlinkCursor);
    XUnlockDisplay(m_pDisplay);
    m_hHyperlinkCursor = -1;
    }
#endif
    HX_RELEASE(m_pStreamHeaderBuffer);
    HX_RELEASE(m_pCallback);
    HX_RELEASE(m_pValues);
    HX_RELEASE(m_pClientAdviseSink);
}


STDMETHODIMP CGIFRenderer::QueryInterface(REFIID riid, void** ppvObj)
{
    HX_RESULT retVal = HXR_OK;

    if (ppvObj)
    {
        // Set default
        *ppvObj = NULL;
        // Check for IID type
        if (IsEqualIID(riid, IID_IUnknown))
        {
            AddRef();
            *ppvObj = (IUnknown*) (IHXPlugin*) this;
        }
        else if (IsEqualIID(riid, IID_IHXPlugin))
        {
            AddRef();
            *ppvObj = (IHXPlugin*) this;
        }
        else if (IsEqualIID(riid, IID_IHXRenderer))
        {
            AddRef();
            *ppvObj = (IHXRenderer*) this;
        }
        else if (IsEqualIID(riid, IID_IHXSiteUser))
        {
            AddRef();
            *ppvObj = (IHXSiteUser*) this;
        }
        else if (IsEqualIID(riid, IID_IHXSiteUserSupplier))
        {
            if (m_pMISUS)
            {
                return m_pMISUS->QueryInterface(IID_IHXSiteUserSupplier, ppvObj);
            }
            else
            {
                retVal = HXR_UNEXPECTED;
            }
        }
        else if (IsEqualIID(riid, IID_IHXStatistics))
        {
            AddRef();
            *ppvObj = (IHXStatistics*) this;
        }
        else if (IsEqualIID(riid, IID_IHXValues))
        {
            AddRef();
            *ppvObj = (IHXValues*) this;
        }
        else if (IsEqualIID(riid, IID_IHXUpdateProperties))
        {
            AddRef();
            *ppvObj = (IHXUpdateProperties*) this;
        }
        else
        {
            retVal = HXR_NOINTERFACE;
        }
    }
    else
    {
        retVal = HXR_FAIL;
    }

    return retVal;
}

STDMETHODIMP_(UINT32) CGIFRenderer::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}


STDMETHODIMP_(UINT32) CGIFRenderer::Release()
{
    if (InterlockedDecrement(&m_lRefCount) > 0)
    {
        return m_lRefCount;
    }

    delete this;

    return 0;
}


STDMETHODIMP CGIFRenderer::GetPluginInfo(REF(BOOL)         rbLoadMultiple,
                                         REF(const char *) rpszDescription,
                                         REF(const char *) rpszCopyright,
                                         REF(const char *) rpszMoreInfoURL,
                                         REF(UINT32)       rulVersionNumber)
{
    rbLoadMultiple   = TRUE;
    rpszDescription  = (const char*) m_pszDescription;
    rpszCopyright    = (const char*) m_pszCopyright;
    rpszMoreInfoURL  = (const char*) m_pszMoreInfoURL;