reactos/drivers/dd/videoprt/videoprt.h

   1
   2 typedef struct _VIDEOPORT_EXTENSTION_DATA
   3 {
   4   PDEVICE_OBJECT  DeviceObject;
   5   PKINTERRUPT  InterruptObject;
   6   KSPIN_LOCK  InterruptSpinLock;
   7   ULONG  InterruptLevel;
   8   KIRQL  IRQL;
   9   KAFFINITY  Affinity;
  10   PVIDEO_HW_INITIALIZE HwInitialize;
  11 } VIDEOPORT_EXTENSION_DATA, *PVIDEOPORT_EXTENSION_DATA;
  12
  13 #define MPExtensionToVPExtension(MPX) \
  14   ((PVIDEOPORT_EXTENSION_DATA) ((DWORD) (MPX) - sizeof(VIDEOPORT_EXTENSION_DATA)))
  15 #define VPExtensionToMPExtension(VPX) \
  16   ((PVOID) ((DWORD) (VPX) + sizeof(VIDEOPORT_EXTENSION_DATA)))
  17