/* Copyright (c) 1993, 1994, Oracle and/or its affiliates. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef _DGA_INTERNALDEFS_H
#define _DGA_INTERNALDEFS_H
#include "dga_externaldefs.h"
/*
** Defined symbols and macros used internally within DGA
*/
#define DGA_MBFLIP_VIDEO 0
#define DGA_MBFLIP_COPY 1
/* Basic changes - attribute changes */
#define DGA_CHANGE_CLIP (1L<<0)
#define DGA_CHANGE_CURSOR (1L<<1)
#define DGA_CHANGE_BSTORE (1L<<2)
#define DGA_CHANGE_CACHE (1L<<3)
#define DGA_CHANGE_ZOMBIE (1L<<4)
/* Basic changes - "major boundary" changes */
#define DGA_CHANGE_MBUFSET (1L<<5)
#define DGA_CHANGE_ALIAS (1L<<6)
/* Always a derivative change */
#define DGA_CHANGE_SITE (1L<<7)
/* Device dependent information change */
#define DGA_CHANGE_DEVINFO (1L<<8)
/* Overlay state information change */
#define DGA_CHANGE_OVLSTATE (1L<<9)
#define DGA_WIN_CHANGEABLE_ATTRS \
(DGA_CHANGE_CLIP | DGA_CHANGE_CURSOR | DGA_CHANGE_BSTORE)
/* note: bstore needs to be included because prev lock subject could have
been a win with bstore and vmbufs never have bstore */
#define DGA_VMBUF_CHANGEABLE_ATTRS \
(DGA_CHANGE_CLIP | DGA_CHANGE_CURSOR | DGA_CHANGE_BSTORE)
/* note: bstore needs to be included because prev lock subject could have
been a win with bstore and nmbufs never have bstore */
#define DGA_NMBUF_CHANGEABLE_ATTRS \
(DGA_CHANGE_CLIP | DGA_CHANGE_CURSOR | DGA_CHANGE_BSTORE | DGA_CHANGE_CACHE)
#define DGA_LOCKSUBJ_INVALID (-2)
#define DGA_LOCKSUBJ_VALID(dgawin, lockSubj) \
((lockSubj) != DGA_LOCKSUBJ_INVALID)
#define DGA_MBUFFER_MASK(bufIndex) \
(1L<<(bufIndex))
/* lock subject is a window? */
#define DGA_LOCKSUBJ_WINDOW(dgawin, lockSubj) \
((lockSubj) == -1)
/* lock subject is a multibuffer? */
#define DGA_LOCKSUBJ_MBUFFER(dgawin, lockSubj) \
(!DGA_LOCKSUBJ_WINDOW((dgawin), (lockSubj)) && \
DGA_LOCKSUBJ_VALID((dgawin), (lockSubj)))
/* lock subject is a viewable multibuffer? */
#define DGA_LOCKSUBJ_VMBUFFER(dgawin, lockSubj) \
(DGA_LOCKSUBJ_MBUFFER((dgawin), (lockSubj)) \
? DGA_MBUF_ISVIEWABLE((dgawin)->pMbs, (lockSubj)) \
: 0) \
/* effective lock subject is a nonviewable multibuffer? */
#define DGA_LOCKSUBJ_NMBUFFER(dgawin, lockSubj) \
(DGA_LOCKSUBJ_MBUFFER((dgawin), (lockSubj)) \
? !DGA_LOCKSUBJ_VMBUFFER((dgawin), (lockSubj)) \
: 0) \
/* is lock subject viewable? (zombies are considered not viewable) */
#define DGA_LOCKSUBJ_VIEWABLE(dgawin, lockSubj) \
( !((dgawin)->changeMask & DGA_CHANGE_ZOMBIE) && \
((lockSubj) != DGA_LOCKSUBJ_INVALID) && \
( (DGA_LOCKSUBJ_WINDOW((dgawin), (lockSubj))) || \
(DGA_MBUF_ISVIEWABLE((dgawin)->pMbs, (lockSubj))) \
) \
)
/* is window or mbuffer aliased? */
#define DGA_MBSMEMB_ALIASED(dgawin) \
((dgawin)->eLockSubj != (dgawin)->rLockSubj)
#define DGA_MBUF_ISVIEWABLE(pMbs, bufIndex) \
(!((pMbs)->pNbShinfo[(bufIndex)]))
#endif /* _DGA_INTERNALDEFS_H */