/* Called for IOCTL_VIDEO_QUERY_AVAIL_MODES.
* Returns information about supported video modes.
*/
BOOLEAN VBoxMPQueryAvailModes(PVBOXMP_DEVEXT pExt, PVIDEO_MODE_INFORMATION pModes, PSTATUS_BLOCK pStatus)
{
LOGF_ENTER();
ULONG ulSize = VBoxMPXpdmGetVideoModesCount()*sizeof(VIDEO_MODE_INFORMATION);
pStatus->Information = ulSize;
VideoPortMoveMemory(pModes, VBoxMPCmnGetVideoModeInfo(0), ulSize);
LOGF_LEAVE();
return TRUE;
}
/* Called for IOCTL_VIDEO_SET_CURRENT_MODE.
* Sets adapter video mode.
*/
BOOLEAN VBoxMPSetCurrentMode(PVBOXMP_DEVEXT pExt, PVIDEO_MODE pMode, PSTATUS_BLOCK pStatus)
{
ULONG RequestedMode;
VIDEO_MODE_INFORMATION *pModeInfo;
LOGF(("mode=%#x", pMode->RequestedMode));
/* Get requested mode info */
RequestedMode = pMode->RequestedMode & ~(VIDEO_MODE_NO_ZERO_MEMORY|VIDEO_MODE_MAP_MEM_LINEAR);
if (RequestedMode!=pMode->RequestedMode)
{
WARN(("ignoring set VIDEO_MODE_NO_ZERO_MEMORY or VIDEO_MODE_MAP_MEM_LINEAR"));
}
pModeInfo = VBoxMPCmnGetVideoModeInfo(RequestedMode-1);
if (!pModeInfo)
{
pStatus->Status = ERROR_INVALID_PARAMETER;
return FALSE;
}
LOG(("screen [%d] mode %d width %d, height %d, bpp %d",
pExt->iDevice, pModeInfo->ModeIndex, pModeInfo->VisScreenWidth, pModeInfo->VisScreenHeight, pModeInfo->BitsPerPlane));
/* Update device info */
pExt->CurrentMode = RequestedMode;
pExt->CurrentModeWidth = pModeInfo->VisScreenWidth;
pExt->CurrentModeHeight = pModeInfo->VisScreenHeight;
pExt->CurrentModeBPP = pModeInfo->BitsPerPlane;
if (pExt->iDevice>0)
{
LOG(("skipping non-primary display %d", pExt->iDevice));
return TRUE;
}
/* Perform actual mode switch */
VBoxVideoSetModeRegisters((USHORT)pModeInfo->VisScreenWidth, (USHORT)pModeInfo->VisScreenHeight,
(USHORT)pModeInfo->VisScreenWidth, (USHORT)pModeInfo->BitsPerPlane, 0, 0, 0);
/*@todo read back from port to check if mode switch was successful */
LOGF_LEAVE();
return TRUE;
}
VIDEO_MODE_INFORMATION* VBoxMPXpdmCurrentVideoMode(PVBOXMP_DEVEXT pExt)
{
return VBoxMPCmnGetVideoModeInfo(pExt, pExt->CurrentMode - 1);
}
