b9a21c3c91c47e090316e28d759194e46628ed49vboxsync/******************************************************************************
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * Copyright (c) 1994, 1995 Hewlett-Packard Company
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * Permission is hereby granted, free of charge, to any person obtaining
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * a copy of this software and associated documentation files (the
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * "Software"), to deal in the Software without restriction, including
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * without limitation the rights to use, copy, modify, merge, publish,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * distribute, sublicense, and/or sell copies of the Software, and to
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * permit persons to whom the Software is furnished to do so, subject to
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * the following conditions:
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * The above copyright notice and this permission notice shall be included
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * in all copies or substantial portions of the Software.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * IN NO EVENT SHALL HEWLETT-PACKARD COMPANY BE LIABLE FOR ANY CLAIM,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * Except as contained in this notice, the name of the Hewlett-Packard
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * Company shall not be used in advertising or otherwise to promote the
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * sale, use or other dealings in this Software without prior written
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * authorization from the Hewlett-Packard Company.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * Header file for DIX-related DBE
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *****************************************************************************/
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync/* INCLUDES */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsynctypedef struct
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync VisualID visual; /* one visual ID that supports double-buffering */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsynctypedef struct
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync XdbeVisualInfo *visinfo; /* list of visuals & depths for scrn */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync/* DEFINES */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define DBE_SCREEN_PRIV(pScreen) ((DbeScreenPrivPtr) \
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync dixLookupPrivate(&(pScreen)->devPrivates, dbeScreenPrivKey))
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define DBE_SCREEN_PRIV_FROM_WINDOW_PRIV(pDbeWindowPriv) \
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync DBE_SCREEN_PRIV((pDbeWindowPriv)->pWindow->drawable.pScreen)
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync dixLookupPrivate(&(pWin)->devPrivates, dbeWindowPrivKey))
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync/* Initial size of the buffer ID array in the window priv. */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync/* Reallocation increment for the buffer ID array. */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync/* Marker for free elements in the buffer ID array. */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync/* TYPEDEFS */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync/* Record used to pass swap information between DIX and DDX swapping
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * procedures.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync ******************************************************************************
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync ** Per-window data
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync ******************************************************************************
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* A pointer to the window with which the DBE window private (buffer) is
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * associated.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Last known swap action for this buffer. Legal values for this field
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * are XdbeUndefined, XdbeBackground, XdbeUntouched, and XdbeCopied.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Last known buffer size.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Coordinates used for static gravity when the window is positioned.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync short x, y;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Number of XIDs associated with this buffer.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Capacity of the current buffer ID array, IDs. */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Pointer to the array of buffer IDs. This initially points to initIDs.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * When the static limit of the initIDs array is reached, the array is
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * reallocated and this pointer is set to the new array instead of initIDs.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Initial array of buffer IDs. We are defining the XID array within the
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * window priv to optimize for data locality. In most cases, only one
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * buffer will be associated with a window. Having the array declared
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * here can prevent us from accessing the data in another memory page,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * possibly resulting in a page swap and loss of performance. Initially we
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * will use this array to store buffer IDs. For situations where we have
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * more IDs than can fit in this static array, we will allocate a larger
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * array to use, possibly suffering a performance loss.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Device-specific private information.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync ******************************************************************************
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync ** Per-screen data
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync ******************************************************************************
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Resources created by DIX to be used by DDX */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Private indices created by DIX to be used by DDX */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Wrapped functions
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * It is the responsibilty of the DDX layer to wrap PositionWindow().
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * DbeExtensionInit wraps DestroyWindow().
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Per-screen DIX routines */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Per-screen DDX routines */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync int /*swapAction*/
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync int * /*pNumWindows*/,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync /* Device-specific private information.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#endif /* DBE_STRUCT_H */