61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/******************************************************************************
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Copyright (c) 1994, 1995 Hewlett-Packard Company
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Permission is hereby granted, free of charge, to any person obtaining
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * a copy of this software and associated documentation files (the
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * "Software"), to deal in the Software without restriction, including
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * without limitation the rights to use, copy, modify, merge, publish,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * distribute, sublicense, and/or sell copies of the Software, and to
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * permit persons to whom the Software is furnished to do so, subject to
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * the following conditions:
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * The above copyright notice and this permission notice shall be included
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * in all copies or substantial portions of the Software.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * IN NO EVENT SHALL HEWLETT-PACKARD COMPANY BE LIABLE FOR ANY CLAIM,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Except as contained in this notice, the name of the Hewlett-Packard
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Company shall not be used in advertising or otherwise to promote the
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * sale, use or other dealings in this Software without prior written
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * authorization from the Hewlett-Packard Company.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * Header file for DIX-related DBE
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync *****************************************************************************/
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/* INCLUDES */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsynctypedef struct {
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync VisualID visual; /* one visual ID that supports double-buffering */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsynctypedef struct {
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync XdbeVisualInfo *visinfo; /* list of visuals & depths for scrn */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/* DEFINES */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define DBE_SCREEN_PRIV(pScreen) ((DbeScreenPrivPtr) \
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync dixLookupPrivate(&(pScreen)->devPrivates, dbeScreenPrivKey))
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#define DBE_SCREEN_PRIV_FROM_WINDOW_PRIV(pDbeWindowPriv) \
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync DBE_SCREEN_PRIV((pDbeWindowPriv)->pWindow->drawable.pScreen)
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync dixLookupPrivate(&(pWin)->devPrivates, dbeWindowPrivKey))
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/* Initial size of the buffer ID array in the window priv. */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/* Reallocation increment for the buffer ID array. */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/* Marker for free elements in the buffer ID array. */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/* TYPEDEFS */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync/* Record used to pass swap information between DIX and DDX swapping
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * procedures.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync ******************************************************************************
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync ** Per-window data
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync ******************************************************************************
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* A pointer to the window with which the DBE window private (buffer) is
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * associated.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Last known swap action for this buffer. Legal values for this field
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * are XdbeUndefined, XdbeBackground, XdbeUntouched, and XdbeCopied.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Last known buffer size.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Coordinates used for static gravity when the window is positioned.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync short x, y;
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Number of XIDs associated with this buffer.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Capacity of the current buffer ID array, IDs. */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Pointer to the array of buffer IDs. This initially points to initIDs.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * When the static limit of the initIDs array is reached, the array is
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * reallocated and this pointer is set to the new array instead of initIDs.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Initial array of buffer IDs. We are defining the XID array within the
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * window priv to optimize for data locality. In most cases, only one
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * buffer will be associated with a window. Having the array declared
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * here can prevent us from accessing the data in another memory page,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * possibly resulting in a page swap and loss of performance. Initially we
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * will use this array to store buffer IDs. For situations where we have
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * more IDs than can fit in this static array, we will allocate a larger
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * array to use, possibly suffering a performance loss.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Pointer to a drawable that contains the contents of the back buffer.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Pointer to a drawable that contains the contents of the front buffer.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * This pointer is only used for the XdbeUntouched swap action. For that
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * swap action, we need to copy the front buffer (window) contents into
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * this drawable, copy the contents of current back buffer drawable (the
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * back buffer) into the window, swap the front and back drawable pointers,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * and then swap the drawable/resource associations in the resource
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * database.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Device-specific private information.
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync ******************************************************************************
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync ** Per-screen data
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync ******************************************************************************
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Wrapped functions
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * It is the responsibilty of the DDX layer to wrap PositionWindow().
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync * DbeExtensionInit wraps DestroyWindow().
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Per-screen DIX routines */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync Bool (*SetupBackgroundPainter) (WindowPtr /*pWin */ ,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync /* Per-screen DDX routines */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync int /*swapAction */
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync int * /*pNumWindows */ ,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync void (*WinPrivDelete) (DbeWindowPrivPtr /*pDbeWindowPriv */ ,
61cb83a8ccd1dd7f671f31fa93c9d8b7be09b4ccvboxsync#endif /* DBE_STRUCT_H */