gdientry.c

这是一个开放源代码的与WINNT/WIN2K/WIN2003兼容的操作系统

                {
                    NtGdiDdDeleteSurfaceObject( (HANDLE)lcl->hDDSurface);
                }
                lcl->hDDSurface = 0;
            }
            else
            {

                lcl->hDDSurface = (ULONG_PTR) puhSurface[i];
            }

            lcl->ddsCaps.dwCaps = ptmpDdSurfaceLocal->ddsCaps.dwCaps;
            if (lcl->lpSurfMore)
            {
                lcl->lpSurfMore->ddsCapsEx.dwCaps2 = ptmpDdSurfaceMore->ddsCapsEx.dwCaps2;
                lcl->lpSurfMore->ddsCapsEx.dwCaps3 = ptmpDdSurfaceMore->ddsCapsEx.dwCaps3;
                lcl->lpSurfMore->ddsCapsEx.dwCaps4 = ptmpDdSurfaceMore->ddsCapsEx.dwCaps4;
            }
            /* FIXME count to next SurfaceCount for 
               ptmpDdSurfaceGlobal = pDdSurfaceGlobal;
               ptmpDdSurfaceLocal = pDdSurfaceLocal;
               ptmpDdSurfaceMore = pDdSurfaceMore;
               we only support one surface create at moment
             */
        }
    }

    /* Check if we have to free all our local allocations */
    if (SurfaceCount > 1)
    {
        /* FIXME: */
    }

    /* Return */
    return Return;
}

DWORD
APIENTRY
DdSetColorKey(LPDDHAL_SETCOLORKEYDATA pSetColorKey)
{
    /* Call win32k */
    return NtGdiDdSetColorKey((HANDLE)pSetColorKey->lpDDSurface->hDDSurface,
                               (PDD_SETCOLORKEYDATA)pSetColorKey);
}

DWORD
APIENTRY
DdGetScanLine(LPDDHAL_GETSCANLINEDATA pGetScanLine)
{
    /* Call win32k */
    return NtGdiDdGetScanLine(GetDdHandle(pGetScanLine->lpDD->hDD),
                               (PDD_GETSCANLINEDATA)pGetScanLine);
}

/* PRIVATE FUNCTIONS *********************************************************/
static ULONG RemberDdQueryDisplaySettingsUniquenessID = 0;

BOOL
WINAPI
bDDCreateSurface(LPDDRAWI_DDRAWSURFACE_LCL pSurface, 
                 BOOL bComplete)
{
    DD_SURFACE_LOCAL SurfaceLocal;
    DD_SURFACE_GLOBAL SurfaceGlobal;
    DD_SURFACE_MORE SurfaceMore;

    /* Zero struct */
    RtlZeroMemory(&SurfaceLocal, sizeof(DD_SURFACE_LOCAL));
    RtlZeroMemory(&SurfaceGlobal, sizeof(DD_SURFACE_GLOBAL));
    RtlZeroMemory(&SurfaceMore, sizeof(DD_SURFACE_MORE));

    /* Set up SurfaceLocal struct */
    SurfaceLocal.ddsCaps.dwCaps = pSurface->ddsCaps.dwCaps;
    SurfaceLocal.dwFlags = pSurface->dwFlags;

    /* Set up SurfaceMore struct */
    RtlMoveMemory(&SurfaceMore.ddsCapsEx,
                  &pSurface->ddckCKDestBlt,
                  sizeof(DDSCAPSEX));
    SurfaceMore.dwSurfaceHandle = (DWORD)pSurface->dbnOverlayNode.object_int->lpVtbl;

    /* Set up SurfaceGlobal struct */
    SurfaceGlobal.fpVidMem = pSurface->lpGbl->fpVidMem;
    SurfaceGlobal.dwLinearSize = pSurface->lpGbl->dwLinearSize;
    SurfaceGlobal.wHeight = pSurface->lpGbl->wHeight;
    SurfaceGlobal.wWidth = pSurface->lpGbl->wWidth;

    /* Check if we have a pixel format */
    if (pSurface->dwFlags & DDSD_PIXELFORMAT)
    {	
        /* Use global one */
        SurfaceGlobal.ddpfSurface = pSurface->lpGbl->lpDD->vmiData.ddpfDisplay;
        SurfaceGlobal.ddpfSurface.dwSize = sizeof(DDPIXELFORMAT);
    }
    else
    {
        /* Use local one */
        SurfaceGlobal.ddpfSurface = pSurface->lpGbl->lpDD->vmiData.ddpfDisplay;
    }

    /* Create the object */
    pSurface->hDDSurface = (DWORD)NtGdiDdCreateSurfaceObject(GetDdHandle(pSurface->lpGbl->lpDD->hDD),
                                                             (HANDLE)pSurface->hDDSurface,
                                                             &SurfaceLocal,
                                                             &SurfaceMore,
                                                             &SurfaceGlobal,
                                                             bComplete);

    /* Return status */
    if (pSurface->hDDSurface) return TRUE;
    return FALSE;
}

/* PUBLIC FUNCTIONS **********************************************************/

/*
 * @implemented
 *
 * GDIEntry 1 
 */
BOOL 
WINAPI 
DdCreateDirectDrawObject(LPDDRAWI_DIRECTDRAW_GBL pDirectDrawGlobal,
                         HDC hdc)
{  
    BOOL Return = FALSE;

    /* Check if the global hDC (hdc == 0) is being used */
    if (!hdc)
  {
        /* We'll only allow this if the global object doesn't exist yet */
        if (!ghDirectDraw)
        {
            /* Create the DC */
            if ((hdc = CreateDC(L"Display", NULL, NULL, NULL)))
            {
                /* Create the DDraw Object */
                ghDirectDraw = NtGdiDdCreateDirectDrawObject(hdc);

                /* Delete our DC */                
                NtGdiDeleteObjectApp(hdc);
            }
        }

        /* If we created the object, or had one ...*/
        if (ghDirectDraw)
        {
            /* Increase count and set success */
            gcDirectDraw++;
            Return = TRUE;
        }

        /* Zero the handle */
        pDirectDrawGlobal->hDD = 0;
    }
    else
    {
        /* Using the per-process object, so create it */
    pDirectDrawGlobal->hDD = (ULONG_PTR)NtGdiDdCreateDirectDrawObject(hdc); 
    
        /* Set the return value */
        Return = pDirectDrawGlobal->hDD ? TRUE : FALSE;
    }

    /* Return to caller */
    return Return;
}

/*
 * @implemented
 *
 * GDIEntry 2
 */
BOOL
WINAPI
DdQueryDirectDrawObject(LPDDRAWI_DIRECTDRAW_GBL pDirectDrawGlobal,
                        LPDDHALINFO pHalInfo,
                        LPDDHAL_DDCALLBACKS pDDCallbacks,
                        LPDDHAL_DDSURFACECALLBACKS pDDSurfaceCallbacks,
                        LPDDHAL_DDPALETTECALLBACKS pDDPaletteCallbacks,
                        LPD3DHAL_CALLBACKS pD3dCallbacks,
                        LPD3DHAL_GLOBALDRIVERDATA pD3dDriverData,
                        LPDDHAL_DDEXEBUFCALLBACKS pD3dBufferCallbacks,
                        LPDDSURFACEDESC pD3dTextureFormats,
                        LPDWORD pdwFourCC,
                        LPVIDMEM pvmList)
    {
    PVIDEOMEMORY VidMemList = NULL;
    DD_HALINFO HalInfo;
    D3DNTHAL_CALLBACKS D3dCallbacks;
    D3DNTHAL_GLOBALDRIVERDATA D3dDriverData;
    DD_D3DBUFCALLBACKS D3dBufferCallbacks;
    DWORD CallbackFlags[3];
    DWORD dwNumHeaps=0, FourCCs=0;
    DWORD Flags;

    /* Clear the structures */
    RtlZeroMemory(&HalInfo, sizeof(DD_HALINFO));
    RtlZeroMemory(&D3dCallbacks, sizeof(D3DNTHAL_CALLBACKS));
    RtlZeroMemory(&D3dDriverData, sizeof(D3DNTHAL_GLOBALDRIVERDATA));
    RtlZeroMemory(&D3dBufferCallbacks, sizeof(DD_D3DBUFCALLBACKS));
    RtlZeroMemory(CallbackFlags, sizeof(DWORD)*3);

    pvmList = NULL;

    /* Do the query */
    if (!NtGdiDdQueryDirectDrawObject(GetDdHandle(pDirectDrawGlobal->hDD),
                                      &HalInfo,
                                      CallbackFlags,
                                      &D3dCallbacks,
                                      &D3dDriverData,
                                      &D3dBufferCallbacks,
                                      pD3dTextureFormats,
                                      &dwNumHeaps,
                                      VidMemList,
                                      &FourCCs,
                                      pdwFourCC))
    {
        /* We failed, free the memory and return */
        return FALSE;
    }

    /* Clear the incoming pointer */
    RtlZeroMemory(pHalInfo, sizeof(DDHALINFO));

    /* Convert all the data */
    pHalInfo->dwSize = sizeof(DDHALINFO);
    pHalInfo->lpDDCallbacks = pDDCallbacks;
    pHalInfo->lpDDSurfaceCallbacks = pDDSurfaceCallbacks;
    pHalInfo->lpDDPaletteCallbacks = pDDPaletteCallbacks;

    /* Check for NT5+ D3D Data */
    if (D3dCallbacks.dwSize && D3dDriverData.dwSize)
    {
        /* Write these down */
        pHalInfo->lpD3DGlobalDriverData = (ULONG_PTR)pD3dDriverData;
        pHalInfo->lpD3DHALCallbacks = (ULONG_PTR)pD3dCallbacks;

        /* Check for Buffer Callbacks */
        if (D3dBufferCallbacks.dwSize)
        {
            /* Write this one too */
            pHalInfo->lpDDExeBufCallbacks = pD3dBufferCallbacks;
        }
    }

    /* Continue converting the rest */
    pHalInfo->vmiData.dwFlags = HalInfo.vmiData.dwFlags;
    pHalInfo->vmiData.dwDisplayWidth = HalInfo.vmiData.dwDisplayWidth;
    pHalInfo->vmiData.dwDisplayHeight = HalInfo.vmiData.dwDisplayHeight;
    pHalInfo->vmiData.lDisplayPitch = HalInfo.vmiData.lDisplayPitch;
    pHalInfo->vmiData.fpPrimary = 0;

    RtlCopyMemory( &pHalInfo->vmiData.ddpfDisplay,
                   &HalInfo.vmiData.ddpfDisplay,
                   sizeof(DDPIXELFORMAT));

    pHalInfo->vmiData.dwOffscreenAlign = HalInfo.vmiData.dwOffscreenAlign;
    pHalInfo->vmiData.dwOverlayAlign = HalInfo.vmiData.dwOverlayAlign;
    pHalInfo->vmiData.dwTextureAlign = HalInfo.vmiData.dwTextureAlign;
    pHalInfo->vmiData.dwZBufferAlign = HalInfo.vmiData.dwZBufferAlign;
    pHalInfo->vmiData.dwAlphaAlign = HalInfo.vmiData.dwAlphaAlign;
    pHalInfo->vmiData.dwNumHeaps = 0;
    pHalInfo->vmiData.pvmList = pvmList;

    RtlCopyMemory( &pHalInfo->ddCaps, &HalInfo.ddCaps,sizeof(DDCORECAPS ));

    pHalInfo->ddCaps.dwNumFourCCCodes = FourCCs;
    pHalInfo->lpdwFourCC = pdwFourCC;
    pHalInfo->ddCaps.dwRops[6] = 0x1000;

    /* FIXME implement DdGetDriverInfo */
    //  pHalInfo->dwFlags = HalInfo.dwFlags | DDHALINFO_GETDRIVERINFOSET;
    //  pHalInfo->GetDriverInfo = DdGetDriverInfo;

    /* Now check if we got any DD callbacks */
    if (pDDCallbacks)
    {
        /* Zero the structure */
        RtlZeroMemory(pDDCallbacks, sizeof(DDHAL_DDCALLBACKS));

        /* Set the flags for this structure */
        Flags = CallbackFlags[0];

        /* Write the header */
        pDDCallbacks->dwSize = sizeof(DDHAL_DDCALLBACKS);
        pDDCallbacks->dwFlags = Flags;

        /* Now write the pointers, if applicable */
        if (Flags & DDHAL_CB32_CREATESURFACE)
        {
            pDDCallbacks->CreateSurface = DdCreateSurface;
        }
        if (Flags & DDHAL_CB32_WAITFORVERTICALBLANK)
        {
            pDDCallbacks->WaitForVerticalBlank = DdWaitForVerticalBlank;
        }
        if (Flags & DDHAL_CB32_CANCREATESURFACE)
        {
            pDDCallbacks->CanCreateSurface = DdCanCreateSurface;
        }
        if (Flags & DDHAL_CB32_GETSCANLINE)
        {
            pDDCallbacks->GetScanLine = DdGetScanLine;
        }
    }

    /* Check for DD Surface Callbacks */
    if (pDDSurfaceCallbacks)
    {
        /* Zero the structures */
        RtlZeroMemory(pDDSurfaceCallbacks, sizeof(DDHAL_DDSURFACECALLBACKS));

        /* Set the flags for this one */
        Flags = CallbackFlags[1];

        /* Write the header, note that some functions are always exposed */
        pDDSurfaceCallbacks->dwSize  = sizeof(DDHAL_DDSURFACECALLBACKS);

        pDDSurfaceCallbacks->dwFlags = Flags;
        /*
        pDDSurfaceCallBacks->dwFlags = (DDHAL_SURFCB32_LOCK |
                                        DDHAL_SURFCB32_UNLOCK |
                                        DDHAL_SURFCB32_SETCOLORKEY |
                                        DDHAL_SURFCB32_DESTROYSURFACE) | Flags;
        */

        /* Write the always-on functions */
        pDDSurfaceCallbacks->Lock = DdLock;
        pDDSurfaceCallbacks->Unlock = DdUnlock;
        pDDSurfaceCallbacks->SetColorKey = DdSetColorKey;
        pDDSurfaceCallbacks->DestroySurface = DdDestroySurface;

        /* Write the optional ones */
        if (Flags & DDHAL_SURFCB32_FLIP)
        {
            pDDSurfaceCallbacks->Flip = DdFlip;
        }
        if (Flags & DDHAL_SURFCB32_BLT)
        {
            pDDSurfaceCallbacks->Blt = DdBlt;
        }
        if (Flags & DDHAL_SURFCB32_GETBLTSTATUS)
        {
            pDDSurfaceCallbacks->GetBltStatus = DdGetBltStatus;
        }
        if (Flags & DDHAL_SURFCB32_GETFLIPSTATUS)
        {
            pDDSurfaceCallbacks->GetFlipStatus = DdGetFlipStatus;
        }
        if (Flags & DDHAL_SURFCB32_UPDATEOVERLAY)