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/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/atixv.c,v 1.6 2004/01/05 16:42:05 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.
*/
#include "atiadapter.h"
#include "atimach64xv.h"
#include "atistruct.h"
#include "atixv.h"
/*
* ATIXVFreeAdaptorInfo --
*
* Free XVideo adaptor information.
*/
static void
ATIXVFreeAdaptorInfo
(
XF86VideoAdaptorPtr *ppAdaptor,
int nAdaptor
)
{
if (!ppAdaptor)
return;
while (nAdaptor > 0)
xfree(ppAdaptor[--nAdaptor]);
xfree(ppAdaptor);
}
/*
* ATIXVInitializeAdaptor --
*
* This is called by the server's XVideo support layer to initialise an XVideo
* adapter.
*/
static int
ATIXVInitializeAdaptor
(
ScrnInfoPtr pScreenInfo,
XF86VideoAdaptorPtr **pppAdaptor
)
{
ScreenPtr pScreen = screenInfo.screens[pScreenInfo->scrnIndex];
ATIPtr pATI = ATIPTR(pScreenInfo);
XF86VideoAdaptorPtr *ppAdaptor = NULL;
int nAdaptor;
switch (pATI->Adapter)
{
case ATI_ADAPTER_MACH64:
nAdaptor = ATIMach64XVInitialiseAdaptor(pScreen, pScreenInfo, pATI,
&ppAdaptor);
break;
default:
nAdaptor = 0;
break;
}
if (pppAdaptor)
*pppAdaptor = ppAdaptor;
else
ATIXVFreeAdaptorInfo(ppAdaptor, nAdaptor);
return nAdaptor;
}
/*
* ATIXVPreInit --
*
* This function is called by ATIPreInit() to set up the environment required
* to support the XVideo extension.
*/
void
ATIXVPreInit
(
ATIPtr pATI
)
{
#ifndef AVOID_CPIO
/* Currently a linear aperture is needed ... */
if (!pATI->LinearBase)
return;
#endif /* AVOID_CPIO */
(void)xf86XVRegisterGenericAdaptorDriver(ATIXVInitializeAdaptor);
}
/*
* ATIInitializeXVideo --
*
* This function is called to initialise XVideo extension support on a screen.
*/
Bool
ATIInitializeXVideo
(
ScreenPtr pScreen,
ScrnInfoPtr pScreenInfo,
ATIPtr pATI
)
{
XF86VideoAdaptorPtr *ppAdaptor;
int nAdaptor;
Bool result;
if (!(pScreenInfo->memPhysBase = pATI->LinearBase))
return FALSE;
pScreenInfo->fbOffset = 0;
nAdaptor = xf86XVListGenericAdaptors(pScreenInfo, &ppAdaptor);
result = xf86XVScreenInit(pScreen, ppAdaptor, nAdaptor);
ATIXVFreeAdaptorInfo(ppAdaptor, nAdaptor);
return result;
}
/*
* ATICloseXVideo --
*
* This function is called during screen termination to clean up after XVideo
* initialisation.
*/
void
ATICloseXVideo
(
ScreenPtr pScreen,
ScrnInfoPtr pScreenInfo,
ATIPtr pATI
)
{
switch (pATI->Adapter)
{
case ATI_ADAPTER_MACH64:
ATIMach64CloseXVideo(pScreen, pScreenInfo, pATI);
break;
default:
break;
}
}
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