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winsurf.cpp：源码内容
							/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
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 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (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 
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 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
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 * it created. 
 *  
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 * ***** END LICENSE BLOCK ***** */ 
#include "hxtypes.h"
#include <math.h>
#include "ddraw.h"
#include "hxcom.h"
#include "hxmtypes.h"
#include "hxwintyp.h"
#include "hxvsurf.h"
#include "hxslist.h"
#include "winsurf.h"
#include "winsite.h"
#include "colormap.h"
#include "hxprefs.h"
#include "hxtick.h"
#include "hxheap.h"
#include "hxevent.h"
// these are defined in basesurf.cpp and should probably be moved to a .h file
#define HX_OVER_KEYDEST    1
#define HX_OVER_HIDE       2
#define HX_OVER_SHOW       4  
#define OVERLAY_NOT_VISIBLE 0
#ifdef _DEBUG
#undef HX_THIS_FILE             
static const char HX_THIS_FILE[] = __FILE__;
#include "winthrd.h"
#endif
CWinSurface::CWinSurface(IUnknown* pContext, CHXBaseSite* pSite) :
    CBaseSurface(pContext,pSite)
 ,  m_nBitsPerPixel(0)
 ,  m_nHozRes(0)
 ,  m_nVertRes(0)
 ,  m_nLastBltMode(HX_NO_BLT)
{
    // initialize data so we don't have invalid ptrs floating around.
    memset(&m_surface,0,sizeof(m_surface));
}
CWinSurface::~CWinSurface()
{
}
void CWinSurface::_ReleaseSurface(CBaseRootSurface* pSurface)
{
    WINDRAW* pWindraw = ((CWinBaseRootSurface*)pSurface)->GetWinDraw();
    WinDraw2_ReleaseSurface(pWindraw, &m_surface);
    m_nLastBltMode = HX_NO_BLT;
}
void CWinSurface::_ReleaseSurface(CWinBaseRootSurface* pSurface)
{
    WINDRAW* pWindraw = pSurface->GetWinDraw();
    WinDraw2_ReleaseSurface(pWindraw, &m_surface);
    m_nLastBltMode = HX_NO_BLT;
}
void CWinSurface::_DrawBlack(void* pWindow)
{
}
void CWinSurface::_CreateBuffer()
{
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    pSurface->OpenWindraw();
    WINDRAW* pWindraw = pSurface->GetWinDraw();
        
    BMI bmi;
    memset(&bmi, 0, sizeof(BMI));
    WinDraw2_GetDisplayFormat(pWindraw, &bmi);
    int cid = GetBitmapColor((LPBITMAPINFO)&bmi);
        
    memset(&bmi, 0, sizeof(BMI));
    MakeBitmap((LPBITMAPINFO)&bmi, sizeof(BMI), cid, m_pOptimizedFormat->biWidth, m_pOptimizedFormat->biHeight, NULL, NULL);
    memset(&m_surface, 0, sizeof(WINDRAWSURFACE));
    
    if (NOERROR == WinDraw2_CreateSurface(pWindraw, &m_surface, &bmi, pSurface->GetSurfaceType(), 0, 0))
    {
        m_surfaceSize.cx = m_pOptimizedFormat->biWidth;
        m_surfaceSize.cy = m_pOptimizedFormat->biHeight;
        m_nSurfaceCID = cid;
        m_nBltMode = HX_BLT_YUV_STRETCH;
        if (!m_nBitsPerPixel ||
            !m_nHozRes ||
            !m_nVertRes)
        {
            // Store the display mode we were created in.
            m_pSite->_GetDeviceCaps(NULL, m_nBitsPerPixel, m_nHozRes, m_nVertRes);
        }
    }
}
HX_RESULT CWinSurface::_GetCaps(UINT32 *pfSurfaceCaps)
{
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    pSurface->OpenWindraw();
    WINDRAW* pWindraw = pSurface->GetWinDraw();
        
    //    UINT32 fSurfaceCaps;
    UINT32 garbagea, garbageb;
        
    if (NOERROR != Windraw_GetCaps(pWindraw, pfSurfaceCaps, &garbagea, &garbageb))
    {
        return HXR_FAIL;
    }
    else
    {
        return HXR_OK;
    }
}
HX_RESULT CWinSurface::_CreateOverlay(BOOL bOverlay, int cid, int x, int y)
{
    //Get our windraw object from the root surface
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
   
    HX_ASSERT( pSurface );
    if( !pSurface )
        return HXR_FAIL;
   
    pSurface->OpenWindraw();
    WINDRAW* pWindraw = pSurface->GetWinDraw();
    BMI bmi;
    memset(&bmi, 0, sizeof(BMI));
    MakeBitmap((LPBITMAPINFO)&bmi, sizeof(BMI), cid, x, y, NULL, NULL);
    memset(&m_surface, 0, sizeof(WINDRAWSURFACE));
        
    int fFlags = 0;
        
    if (bOverlay)
    {
        fFlags = WINDRAWSURFACE_DIRECTDRAW | WINDRAWSURFACE_OVERLAY | WINDRAWSURFACE_VIDEOMEMORY;
    }
    else
    {
        fFlags = WINDRAWSURFACE_DIRECTDRAW | WINDRAWSURFACE_DEFAULTMEMORY;
    }
        
    int numBuffers = (m_bFlipOverlay && bOverlay) ? m_nBackBufferCount+1 : 1;
    for (; numBuffers; numBuffers--)
    {
        if (NOERROR == WinDraw2_CreateSurface(pWindraw, &m_surface, &bmi, fFlags, numBuffers-1, 0))
        {
            m_nDDSurfaceSize = bmi.bmiHeader.biSizeImage;
            m_surfaceSize.cx = x;
            m_surfaceSize.cy = y;
            m_nSurfaceCID = cid;
            m_nBackBufferCount = numBuffers-1;
            if (bOverlay)
            {
                m_nBltMode = HX_OVERLAY_BLT;
            }
            else
            {
                m_nBltMode = HX_BLT_YUV_STRETCH;
            }
            UpdateDestRect();
            if (!m_nBitsPerPixel ||
                !m_nHozRes ||
                !m_nVertRes)
            {
                // Store the display mode we were created in.
                m_pSite->_GetDeviceCaps(NULL, m_nBitsPerPixel, m_nHozRes, m_nVertRes);
            }
            return HXR_OK;
        }
    }
        
    return HXR_FAIL;
}
HX_RESULT CWinSurface::_BltToPrimary(REF(HXxRect) rDestRect, REF(HXxRect) rSrcRect)
{
#ifdef _CHECK_PERFORMANCE
    static LARGE_INTEGER QueryPerformanceCounterResult = {0,0};
    static LARGE_INTEGER QueryPerformanceFrequencyResult = {0,0};
        
    QueryPerformanceFrequency(&QueryPerformanceFrequencyResult);
        
    double frequency = ((double)QueryPerformanceFrequencyResult.LowPart + 4294967296.0*QueryPerformanceFrequencyResult.HighPart);
    QueryPerformanceCounter(&QueryPerformanceCounterResult);
        
    double startTime = ((double)QueryPerformanceCounterResult.LowPart + 4294967296.0*QueryPerformanceCounterResult.HighPart)/frequency;
#endif
        
    if ((m_surfaceSize.cx==0  && m_surfaceSize.cy == 0)  || HX_BLT_YUV_STRETCH != m_nBltMode )
    {
        return HXR_FAIL;
    }
        
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    WINDRAW* pWindraw = pSurface->GetWinDraw();
        
    HX_RESULT retVal = HXR_FAIL;
        
    if (NOERROR == WinDrawSurface_Blt(pWindraw, &m_surface, (RECT*)&rDestRect, (RECT*)&rSrcRect))
    {
        retVal = HXR_OK;        
    }
        
#ifdef _CHECK_PERFORMANCE
    QueryPerformanceCounter(&QueryPerformanceCounterResult);
    double endTime = ((double)QueryPerformanceCounterResult.LowPart + 4294967296.0*QueryPerformanceCounterResult.HighPart)/frequency;
        
    static UINT32 z_nNumTimes = 0;
    static double z_fTotalTime;
    static double z_fAverageTime;
        
    z_nNumTimes++;
    z_fTotalTime += endTime - startTime;
    z_fAverageTime = z_fTotalTime / (double) z_nNumTimes;
        
    if (! (z_nNumTimes % 25))
    {
        FILE* f1 = ::fopen("c:\performance.txt", "a+"); /* Flawfinder: ignore */
        ::fprintf(f1, "WINDRAW2 - BltToPrimary: %d blts. Total CPU time: %f, CPU/Blt: %f -- Blt/s Second Max: %fn", z_nNumTimes, z_fTotalTime, z_fAverageTime, 1.0/z_fAverageTime);
        fclose(f1);
    }
#endif
    return retVal;
}
HX_RESULT CWinSurface::_LockInternalSurface(UCHAR** ppSurfPtr, LONG* pnSurfPitch, REF(HXxSize) srcSize)
{
    HX_RESULT ret = HXR_OK;
    IDirectDrawSurface *pBackBuffer = NULL;
    
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    WINDRAW* pWindraw = pSurface->GetWinDraw();
    //See comments in _UnlockInternalSurface below.....
    if( m_bVideoSurface2 && m_surface.dd.lpDDBackBuffer )
    {
        pBackBuffer = m_surface.dd.lpDDBackBuffer;
        m_surface.dd.lpDDBackBuffer = NULL;
    }
    if (NOERROR == WinDrawSurface_Lock(pWindraw, &m_surface, 0, (void**) ppSurfPtr, pnSurfPitch))
        ret =  HXR_OK;
    else
        ret = HXR_FAIL;
    
    if (pBackBuffer)
        m_surface.dd.lpDDBackBuffer = pBackBuffer;
        
    return ret;
}
// Note that the pSurfPtr is not used... but other implementations will
// probbaly use it.
HX_RESULT CWinSurface::_UnlockInternalSurface(UCHAR* pSurfPtr)
{
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    WINDRAW* pWindraw = pSurface->GetWinDraw();
    if (m_pSite->HasFocusRect())
    {
        pSurface->DrawFocusRect(//&m_surface,
            m_nSurfaceCID,
            &m_surfaceSize,
            pSurfPtr,
            m_pSite);
    }
    
    IDirectDrawSurface *pBackBuffer = NULL;
    
    //This is a VS1 only call. If we are calling this and we are in
    //VS2 mode then it means we are sharing the overlay.
    //VS1 only uses the front buffer and so we need to hide the back
    //buffer from VS1 to keep the flip from happening.
    //PR70865, Fixes the 'shaking' bug.
    if( m_bVideoSurface2 && m_surface.dd.lpDDBackBuffer )
    {
        //XXXgfw This assumes that VS1 *NEVER* uses a flipping chain.
        pBackBuffer = m_surface.dd.lpDDBackBuffer;
        m_surface.dd.lpDDBackBuffer = NULL;
    }
    WinDrawSurface_Unlock(pWindraw, &m_surface, 0);
    if (pBackBuffer)
        m_surface.dd.lpDDBackBuffer = pBackBuffer;
        
    return HXR_OK;
}
void CWinSurface::_SetupDCObjects(HXxDC hxxDC, void** phOldBrush, void** phOldPen)
{
    HDC hdc = (HDC) hxxDC;
        
    LOGBRUSH brush;
        
    brush.lbStyle = BS_SOLID;
    brush.lbColor = GetOverlayColor();
    brush.lbHatch = 0;
        
    HBRUSH  hBrush      = (HBRUSH)CreateBrushIndirect(&brush);
    HPEN    hPen        = (HPEN)CreatePen(PS_SOLID, 1, GetOverlayColor());
    *phOldBrush         = (void*)SelectObject(hdc, hBrush);
    *phOldPen           = (void*)SelectObject(hdc, hPen);
}
void CWinSurface::_FillRectangle(HXxDC hxxDC, UINT32 left, UINT32 top, UINT32 right, UINT32 bottom)
{
    HDC hdc = (HDC)hxxDC;
    LOGBRUSH brush;
        
    brush.lbStyle = BS_SOLID;
//  Do NOT use _InsureColorMatch() here.  This color must be RGB(8,8,8) format and _InsureColorMatch()
//  will return a different format if display isn't in 24 or 32-bit mode.
    brush.lbColor = GetOverlayColor();
    brush.lbHatch = 0;
        
    HBRUSH  hBrush      = (HBRUSH)CreateBrushIndirect(&brush);
    HPEN    hPen        = (HPEN)CreatePen(PS_SOLID, 1, brush.lbColor);
    HBRUSH  hOldBrush   = (HBRUSH)SelectObject(hdc, hBrush);
    HPEN    hOldPen     = (HPEN)SelectObject(hdc, hPen);
        
    Rectangle(hdc, left, top, right, bottom);
        
    SelectObject(hdc, hOldBrush);
    SelectObject(hdc, hOldPen);
    DeleteObject(hBrush);
    DeleteObject(hPen);
}
void CWinSurface::_RestoreDCObjects(HXxDC hxxDC, void* hOldBrush, void* hOldPen)
{
    HBRUSH hBrush = (HBRUSH)SelectObject((HDC) hxxDC, (HBRUSH) hOldBrush);
    HPEN hPen = (HPEN)SelectObject((HDC) hxxDC, (HPEN) hOldPen);
    DeleteObject(hBrush);
    DeleteObject(hPen);
}
void CWinSurface::_GetCompositionSurfaceHXxDC(HXxDC *hdc)
{
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    WINDRAWSURFACE* pDrawSurface = pSurface->GetCompositionSurface();
    WINDRAW*    pWindraw = pSurface->GetWinDraw();
        
    WinDrawSurface_GetDC(pWindraw, pDrawSurface, (HDC*)hdc);
    // XXXAH Huh? Fix this up!
}
void CWinSurface::_ReleaseCompositionSurfaceHXxDC(HXxDC hdc)
{
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    WINDRAWSURFACE* pDrawSurface = pSurface->GetCompositionSurface();
    WINDRAW*    pWindraw = pSurface->GetWinDraw();
        
    WinDrawSurface_ReleaseDC(pWindraw, pDrawSurface, (HDC)hdc);
}
INT32 CWinSurface::_InsureColorMatch(INT32 InColor)
{
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    WINDRAW*    pWindraw = pSurface->GetWinDraw();
    return Windraw_ColorMatch(pWindraw, InColor);
}
void CWinSurface::_SetColorKey(INT32 nColorSpaceLowValue, INT32 nColorSpaceHighValue)
{
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    WINDRAW*    pWindraw = pSurface->GetWinDraw();
    HRESULT hr = WinDraw2_SetColorKey(pWindraw, m_convertedOverlayColor, m_convertedOverlayColor);
}
void CWinSurface::_UpdateOverlay(HXxRect* dest, HXxRect* src, INT32 inFlags)
{
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    WINDRAW*    pWindraw = pSurface->GetWinDraw();
        
    // convert flags.
    INT32 flags = 0;
    
    if (inFlags & HX_OVER_KEYDEST)
    {   
        flags |= DDOVER_KEYDEST;
    }
        
    if (inFlags & HX_OVER_HIDE)
    {   
        flags |= DDOVER_HIDE;
    }
        
    if (inFlags & HX_OVER_SHOW)
    {   
        flags |= DDOVER_SHOW;
    }
    HRESULT hr = WinDraw2_UpdateOverlay(pWindraw, &m_surface, (RECT*)dest, (RECT*)src, flags);
    // We can only have one visible overlay and someone else has it :(
    // Drop to offscreen mode.
    if (DDERR_OUTOFCAPS == hr)
    {
        m_nBltMode = HX_BASIC_BLT;
        m_bMultipleOverlay = !m_bLostHWAcceleration;//TRUE;
    }
    // If we lost/restored our surfaces, the video will be garbage so force
    // a redraw.
    else if (DDERR_SURFACELOST == hr)
        m_nLastBltMode = HX_NO_BLT;
}
BOOL CWinSurface::_IsSurfaceVisible()
{
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    if (!pSurface)
        return FALSE;
    WINDRAW* pWindraw = pSurface->GetWinDraw();
    return WinDraw2_IsSurfaceVisible(pWindraw, &m_surface);
}
void CWinSurface::_ReleaseSurface()
{
    CWinBaseRootSurface* pSurface = (CWinBaseRootSurface*)m_pSite->GetRootSurface();
    if (pSurface)
    {
        WINDRAW* pWindraw = pSurface->GetWinDraw();
        if (pWindraw)
        {
            WinDraw2_ReleaseSurface(pWindraw, &m_surface);
        }
    }
    m_nLastBltMode = HX_NO_BLT;
}
HXxDC CWinSurface::_GetDC(HXxWindow* pWindow)
{
    HWND hwnd = (HWND) pWindow->window;
    return     (HXxDC) GetDC(hwnd);
}
void CWinSurface::_ReleaseDC(HXxWindow* pWindow, HXxDC hdc)
{
    HWND hwnd = (HWND) pWindow->window;
    ReleaseDC(hwnd, (HDC)hdc);
}
void CWinSurface::_GetWindowDeviceCords(HXxRect* rect)
{
    HXxWindow* pWin = m_pSite->GetWindow();
    if( pWin )
    {
        HWND hwnd = (HWND) pWin->window;
        GetWindowRect(hwnd,(RECT*)rect);
    }
}
HX_RESULT CWinSurface::RelinquishOverlay()
{
    return CBaseSurface::RelinquishOverlay();
}
HX_RESULT CWinSurface::AcquireOverlay()
{
    return CBaseSurface::AcquireOverlay();
}
void CWinSurface::_ColorWindows()
{
    int index = m_pSite->m_pTopLevelSite->m_nWindowColor++;
    if (m_pSite && m_pSite->GetWindow())
    {
        HWND hwnd = (HWND) (m_pSite->GetWindow())->window;
        HDC hdc = GetDC(hwnd);
        LOGBRUSH logBrush;
        logBrush.lbStyle = BS_SOLID;
        UCHAR red   =  (index) * 16;
        UCHAR green =  (index+5) * 16;
        UCHAR blue  =  (index+10) * 16;
        logBrush.lbColor = (red << 16) | (green <<8) | blue;
        logBrush.lbHatch = 0;
        HBRUSH brush = CreateBrushIndirect(&logBrush);
        HBRUSH oldBrush = (HBRUSH) SelectObject(hdc, brush);
        Rectangle(hdc, 0,0, 1000, 1000);
        SelectObject(hdc, oldBrush);
        DeleteObject(brush);
        ReleaseDC(hwnd, hdc);
        RECT rect;
        ::GetWindowRect(hwnd, &rect);
        FILE* f = fopen("c:\color.txt", "a+"); /* Flawfinder: ignore */
        fprintf(f, "%p HWND %p %p (%d, %d, %d, %d)n", this, hwnd, logBrush.lbColor, rect.left, rect.top, rect.right, rect.bottom);
        HRGN r = CreateRectRgn(0,0,0,0);
        GetWindowRgn( hwnd, r);
        DWORD dwCount = GetRegionData( r, 0, 0);
        char* p = (char* ) calloc(dwCount, 1);
        LPRGNDATA pdata = (LPRGNDATA)p;
        DWORD ret = GetRegionData( r, dwCount, pdata);
        fprintf(f, "tCount: %d Size: %dn", pdata->rdh.nCount, dwCount);
        RECT* pr = (RECT*)pdata->Buffer;
        for(int i = 0; i< pdata->rdh.nCount; i++)
            fprintf(f, "tt(%d, %d, %d, %d)n", pr[i]);
        DeleteObject(r);
        free(p);
        fclose(f);
    }
}
BOOL  CWinSurface::UsingOverlay()
{
    if (m_surface.fMode & WINDRAWSURFACE_OVERLAY)
    {
        return TRUE;
    }
    if (m_pLinkedOverlay)
    {
        return m_pLinkedOverlay->UsingOverlay();
    }
    return FALSE;
}

						