HRESULT WINAPI Main_DirectDraw_GetAvailableVidMem4	(	LPDDRAWI_DIRECTDRAW_INT	This,
		LPDDSCAPS2	ddscaps,
		LPDWORD	dwTotal,
		LPDWORD	dwFree
	)
Definition at line 319 of file ddraw_main.c.
Referenced by Main_DirectDraw_GetAvailableVidMem(), and Main_DirectDraw_GetCaps().
{
    HRESULT retVal = DD_OK;
    DDHAL_GETAVAILDRIVERMEMORYDATA  memdata;

    DX_WINDBG_trace();

    _SEH2_TRY
    {
        // There is no HEL implentation of this api
        if (!(This->lpLcl->lpDDCB->HALDDMiscellaneous.dwFlags & DDHAL_MISCCB32_GETAVAILDRIVERMEMORY) ||
            (This->lpLcl->lpGbl->dwFlags & DDRAWI_NOHARDWARE) )
        {
            retVal = DDERR_NODIRECTDRAWHW;
        }
        else
        {
            if ((!dwTotal && !dwFree) || !ddscaps)
            {
                retVal = DDERR_INVALIDPARAMS;
                _SEH2_LEAVE;
            }

            if ( ddscaps->dwCaps & (DDSCAPS_BACKBUFFER  | DDSCAPS_COMPLEX   | DDSCAPS_FLIP |
                                    DDSCAPS_FRONTBUFFER | DDSCAPS_PALETTE   | DDSCAPS_SYSTEMMEMORY |
                                    DDSCAPS_VISIBLE     | DDSCAPS_WRITEONLY | DDSCAPS_OWNDC))
            {
                retVal = DDERR_INVALIDPARAMS;
                _SEH2_LEAVE;
            }


            /*   ddscaps->dwCaps2 & 0x01
                this flag is outdate and are
                set to 0 in ms dxsdk  the name of
                this flag is DDSCAPS2_HARDWAREDEINTERLACE
            */

            if ( ddscaps->dwCaps2 & 0x01)
            {
                retVal = DDERR_INVALIDCAPS;
                _SEH2_LEAVE;
            }

            if ( ddscaps->dwCaps3 & ~( DDSCAPS3_MULTISAMPLE_QUALITY_MASK | DDSCAPS3_MULTISAMPLE_MASK |
                                       DDSCAPS3_RESERVED1                | DDSCAPS3_RESERVED2        |
                                       DDSCAPS3_LIGHTWEIGHTMIPMAP        | DDSCAPS3_AUTOGENMIPMAP    |
                                       DDSCAPS3_DMAP))
            {
                retVal = DDERR_INVALIDCAPS;
                _SEH2_LEAVE;
            }

            if ( ddscaps->dwCaps4)
            {
                retVal = DDERR_INVALIDCAPS;
                _SEH2_LEAVE;
            }

            ZeroMemory(&memdata, sizeof(DDHAL_GETAVAILDRIVERMEMORYDATA));
            memdata.lpDD = This->lpLcl->lpGbl;
            memdata.ddRVal = DDERR_INVALIDPARAMS;

            memdata.ddsCapsEx.dwCaps2 = ddscaps->dwCaps2;
            memdata.ddsCapsEx.dwCaps3 = ddscaps->dwCaps3;

            This->lpLcl->lpGbl->hDD = This->lpLcl->hDD;

            if (This->lpLcl->lpDDCB->HALDDMiscellaneous.GetAvailDriverMemory(&memdata) == DDHAL_DRIVER_NOTHANDLED)
            {
                retVal = DDERR_NODIRECTDRAWHW;

                if (dwTotal)
                    *dwTotal = 0;

                if (dwFree)
                    *dwFree = 0;
            }
            else
            {
                if (dwTotal)
                    *dwTotal = memdata.dwTotal;

                if (dwFree)
                    *dwFree = memdata.dwFree;

                retVal = memdata.ddRVal;
            }
        }
    }
    _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
    {
    }
    _SEH2_END;

    return retVal;
}
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