FreonLinux/system/tinyx/fb/fballpriv.c

/*
 *
 * Copyright © 1998 Keith Packard
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include "fb.h"

int fbScreenPrivateIndex;

int
fbGetScreenPrivateIndex(void)
{
    return fbScreenPrivateIndex;
}
int fbGCPrivateIndex;

int
fbGetGCPrivateIndex(void)
{
    return fbGCPrivateIndex;
}

int fbWinPrivateIndex;

int
fbGetWinPrivateIndex(void)
{
    return fbWinPrivateIndex;
}
int fbGeneration;


Bool
fbAllocatePrivates(ScreenPtr pScreen, int *pGCIndex)
{
    if (fbGeneration != serverGeneration) {
        fbGCPrivateIndex = miAllocateGCPrivateIndex();
        fbWinPrivateIndex = AllocateWindowPrivateIndex();
        fbScreenPrivateIndex = AllocateScreenPrivateIndex();
        if (fbScreenPrivateIndex == -1)
            return FALSE;

        fbGeneration = serverGeneration;
    }
    if (pGCIndex)
        *pGCIndex = fbGCPrivateIndex;
    if (!AllocateGCPrivate(pScreen, fbGCPrivateIndex, sizeof(FbGCPrivRec)))
        return FALSE;
    if (!AllocateWindowPrivate(pScreen, fbWinPrivateIndex, 0))
        return FALSE;
    {
        FbScreenPrivPtr pScreenPriv;

        pScreenPriv = malloc(sizeof(FbScreenPrivRec));
        if (!pScreenPriv)
            return FALSE;
        pScreen->devPrivates[fbScreenPrivateIndex].ptr = (pointer) pScreenPriv;
    }
    return TRUE;
}