Esempio n. 1
0
static bool haveHGSMIModeHintAndCursorReportingInterface(VBOXPtr pVBox)
{
    uint32_t fModeHintReporting, fCursorReporting;

    return    RT_SUCCESS(VBoxQueryConfHGSMI(&pVBox->guestCtx, VBOX_VBVA_CONF32_MODE_HINT_REPORTING, &fModeHintReporting))
           && RT_SUCCESS(VBoxQueryConfHGSMI(&pVBox->guestCtx, VBOX_VBVA_CONF32_GUEST_CURSOR_REPORTING, &fCursorReporting))
           && fModeHintReporting == VINF_SUCCESS
           && fCursorReporting == VINF_SUCCESS;
}
Esempio n. 2
0
static bool hostHasScreenBlankingFlag(VBOXPtr pVBox)
{
    uint32_t fScreenFlags;

    return    RT_SUCCESS(VBoxQueryConfHGSMI(&pVBox->guestCtx, VBOX_VBVA_CONF32_SCREEN_FLAGS, &fScreenFlags))
           && fScreenFlags & VBVA_SCREEN_F_BLANK;
}
/**
 * Get the information needed to map the area used by the host to send back
 * requests.
 *
 * @param  pCtx                the context containing the heap to use
 * @param  cbVRAM              how much video RAM is allocated to the device
 * @param  offVRAMBaseMapping  the offset of the basic communication structures
 *                             into the guest's VRAM
 * @param  poffVRAMHostArea    where to store the offset into VRAM of the host
 *                             heap area
 * @param  pcbHostArea         where to store the size of the host heap area
 */
RTDECL(void) VBoxHGSMIGetHostAreaMapping(PHGSMIGUESTCOMMANDCONTEXT pCtx,
                                         uint32_t cbVRAM,
                                         uint32_t offVRAMBaseMapping,
                                         uint32_t *poffVRAMHostArea,
                                         uint32_t *pcbHostArea)
{
    uint32_t offVRAMHostArea = offVRAMBaseMapping, cbHostArea = 0;

    AssertPtrReturnVoid(poffVRAMHostArea);
    AssertPtrReturnVoid(pcbHostArea);
    VBoxQueryConfHGSMI(pCtx, VBOX_VBVA_CONF32_HOST_HEAP_SIZE, &cbHostArea);
    if (cbHostArea != 0)
    {
        uint32_t cbHostAreaMaxSize = cbVRAM / 4;
        /** @todo what is the idea of this? */
        if (cbHostAreaMaxSize >= VBVA_ADAPTER_INFORMATION_SIZE)
        {
            cbHostAreaMaxSize -= VBVA_ADAPTER_INFORMATION_SIZE;
        }
        if (cbHostArea > cbHostAreaMaxSize)
        {
            cbHostArea = cbHostAreaMaxSize;
        }
        /* Round up to 4096 bytes. */
        cbHostArea = (cbHostArea + 0xFFF) & ~0xFFF;
        offVRAMHostArea = offVRAMBaseMapping - cbHostArea;
    }

    *pcbHostArea = cbHostArea;
    *poffVRAMHostArea = offVRAMHostArea;
    LogFunc(("offVRAMHostArea = 0x%08X, cbHostArea = 0x%08X\n",
             offVRAMHostArea, cbHostArea));
}
Esempio n. 4
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/**
 * Gets the count of virtual monitors attached to the guest via an HGSMI
 * command
 *
 * @returns the right count on success or 1 on failure.
 * @param  pCtx  the context containing the heap to use
 */
RTDECL(uint32_t) VBoxHGSMIGetMonitorCount(PHGSMIGUESTCOMMANDCONTEXT pCtx)
{
    /* Query the configured number of displays. */
    uint32_t cDisplays = 0;
    VBoxQueryConfHGSMI(pCtx, VBOX_VBVA_CONF32_MONITOR_COUNT, &cDisplays);
    LogFunc(("cDisplays = %d\n", cDisplays));
    if (cDisplays == 0 || cDisplays > VBOX_VIDEO_MAX_SCREENS)
        /* Host reported some bad value. Continue in the 1 screen mode. */
        cDisplays = 1;
    return cDisplays;
}
Esempio n. 5
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/** Sanity test on first call.  We do not worry about concurrency issues. */
static int testQueryConf(PHGSMIGUESTCOMMANDCONTEXT pCtx)
{
    static bool cOnce = false;
    uint32_t ulValue = 0;
    int rc;

    if (cOnce)
        return VINF_SUCCESS;
    cOnce = true;
    rc = VBoxQueryConfHGSMI(pCtx, UINT32_MAX, &ulValue);
    if (RT_SUCCESS(rc) && ulValue == UINT32_MAX)
        return VINF_SUCCESS;
    cOnce = false;
    if (RT_FAILURE(rc))
        return rc;
    return VERR_INTERNAL_ERROR;
}