C++ Display::VideoAccelEnable方法代码示例

DECLCALLBACK(int) iface_VideoAccelEnable(PPDMIVMMDEVCONNECTOR pInterface, bool fEnable, VBVAMEMORY *pVbvaMemory)
{
    PDRVMAINVMMDEV pDrv = PDMIVMMDEVCONNECTOR_2_MAINVMMDEV(pInterface);
    Console *pConsole = pDrv->pVMMDev->getParent();

    Display *display = pConsole->getDisplay();

    if (display)
    {
        LogSunlover(("MAIN::VMMDevInterface::iface_VideoAccelEnable: %d, %p\n", fEnable, pVbvaMemory));
        return display->VideoAccelEnable(fEnable, pVbvaMemory);
    }

    return VERR_NOT_SUPPORTED;
}

/**
 * Periodic display refresh callback.
 *
 * @param  pInterface Display connector.
 */
DECLCALLBACK(void) Display::displayRefreshCallback(PPDMIDISPLAYCONNECTOR pInterface)
{
    PDRVMAINDISPLAY pDrv = PDMIDISPLAYCONNECTOR_2_MAINDISPLAY(pInterface);


    /* Contrary to displayUpdateCallback and displayResizeCallback
     * the framebuffer lock must be taken since the function
     * pointed to by pDrv->pUpPort->pfnUpdateDisplay is unaware
     * of any locking issues. */

    Display *pDisplay = pDrv->pDisplay;

    uint32_t u32ResizeStatus = pDisplay->mu32ResizeStatus;

    if (u32ResizeStatus == ResizeStatus_UpdateDisplayData)
    {
#ifdef DEBUG_sunlover
        LogFlowFunc (("ResizeStatus_UpdateDisplayData\n"));
#endif /* DEBUG_sunlover */
        /* The framebuffer was resized and display data need to be updated. */
        pDisplay->handleResizeCompletedEMT ();
        /* Continue with normal processing because the status here is ResizeStatus_Void. */
        Assert (pDisplay->mu32ResizeStatus == ResizeStatus_Void);
        /* Repaint the display because VM continued to run during the framebuffer resize. */
        pDrv->pUpPort->pfnUpdateDisplayAll(pDrv->pUpPort);
        /* Ignore the refresh to replay the logic. */
        return;
    }
    else if (u32ResizeStatus == ResizeStatus_InProgress)
    {
#ifdef DEBUG_sunlover
        LogFlowFunc (("ResizeStatus_InProcess\n"));
#endif /* DEBUG_sunlover */
        /* The framebuffer is being resized. Do not call the VGA device back. Immediately return. */
        return;
    }

    if (pDisplay->mfPendingVideoAccelEnable)
    {
        /* Acceleration was enabled while machine was not yet running
         * due to restoring from saved state. Update entire display and
         * actually enable acceleration.
         */
        Assert(pDisplay->mpPendingVbvaMemory);

        /* Acceleration can not be yet enabled.*/
        Assert(pDisplay->mpVbvaMemory == NULL);
        Assert(!pDisplay->mfVideoAccelEnabled);

        if (pDisplay->mfMachineRunning)
        {
            pDisplay->VideoAccelEnable (pDisplay->mfPendingVideoAccelEnable, pDisplay->mpPendingVbvaMemory);

            /* Reset the pending state. */
            pDisplay->mfPendingVideoAccelEnable = false;
            pDisplay->mpPendingVbvaMemory = NULL;
        }
    }
    else
    {
        Assert(pDisplay->mpPendingVbvaMemory == NULL);

        if (pDisplay->mfVideoAccelEnabled)
        {
            Assert(pDisplay->mpVbvaMemory);
            pDisplay->VideoAccelFlush ();
        }
        else
        {
            Assert(pDrv->Connector.pu8Data);
            pDisplay->mFramebuffer->Lock();
            pDrv->pUpPort->pfnUpdateDisplay(pDrv->pUpPort);
            pDisplay->mFramebuffer->Unlock();
        }
    }
}