/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/atiaccel.c,v 1.13 2003/04/24 21:19:22 tsi Exp $ *//* * Copyright 2001 through 2004 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org * * 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 Marc Aurele La France not be used in advertising or * publicity pertaining to distribution of the software without specific, * written prior permission.  Marc Aurele La France makes no representations * about the suitability of this software for any purpose.  It is provided * "as-is" without express or implied warranty. * * MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO * EVENT SHALL MARC AURELE LA FRANCE 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. * * DRI support by: *    Leif Delgass <ldelgass@retinalburn.net> */#ifdef HAVE_CONFIG_H#include "config.h"#endif#include "atiaccel.h"#include "atiadapter.h"#include "atimach64accel.h"#include "atistruct.h"#ifdef USE_XAA/* * ATIInitializeAcceleration -- * * This function is called to initialise both the framebuffer manager and XAA * on a screen. */BoolATIInitializeAcceleration(    ScreenPtr   pScreen,    ScrnInfoPtr pScreenInfo,    ATIPtr      pATI){    if (pATI->OptionAccel)    {        if (!(pATI->pXAAInfo = XAACreateInfoRec()))            return FALSE;        switch (pATI->Adapter)        {            case ATI_ADAPTER_MACH64:                ATIMach64AccelInit(pATI, pATI->pXAAInfo);                break;            default:                break;        }    }    if (!pATI->OptionAccel || XAAInit(pScreen, pATI->pXAAInfo))        return TRUE;    XAADestroyInfoRec(pATI->pXAAInfo);    pATI->pXAAInfo = NULL;    return FALSE;}FBLinearPtrATIResizeOffscreenLinear(    ScreenPtr   pScreen,    FBLinearPtr pLinear,    int         Size){    if (Size <= 0)    {        xf86FreeOffscreenLinear(pLinear);        return NULL;    }    if (pLinear)    {        if ((pLinear->size >= Size) ||            xf86ResizeOffscreenLinear(pLinear, Size))        {            pLinear->MoveLinearCallback = NULL;            pLinear->RemoveLinearCallback = NULL;            return pLinear;        }        xf86FreeOffscreenLinear(pLinear);    }    pLinear = xf86AllocateOffscreenLinear(pScreen, Size, 16, NULL, NULL, NULL);    if (!pLinear)    {        int maxSize;        xf86QueryLargestOffscreenLinear(pScreen, &maxSize, 16,            PRIORITY_EXTREME);        if (maxSize < Size)            return NULL;        xf86PurgeUnlockedOffscreenAreas(pScreen);        pLinear =            xf86AllocateOffscreenLinear(pScreen, Size, 16, NULL, NULL, NULL);    }    return pLinear;}#endif /* USE_XAA */