dc0354104c
dependencies. It was nearly abstract enough already to be used by
multiple DDXes. This will be useful for EXA development through
providing a fake acceleration implementation within Xephyr, so that
testing can be done on new EXA code without worrying about buggy
drivers.
162 lines
4.3 KiB
C
162 lines
4.3 KiB
C
/*
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* Copyright © 2006 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Eric Anholt <anholt@FreeBSD.org>
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include "exa_priv.h"
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#include "xf86str.h"
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#include "xf86.h"
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typedef struct _ExaXorgScreenPrivRec {
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CloseScreenProcPtr SavedCloseScreen;
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EnableDisableFBAccessProcPtr SavedEnableDisableFBAccess;
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} ExaXorgScreenPrivRec, *ExaXorgScreenPrivPtr;
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static int exaXorgServerGeneration;
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static int exaXorgScreenPrivateIndex;
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static Bool
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exaXorgCloseScreen (int i, ScreenPtr pScreen)
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{
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ScrnInfoPtr pScrn = XF86SCRNINFO(pScreen);
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ExaXorgScreenPrivPtr pScreenPriv =
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pScreen->devPrivates[exaXorgScreenPrivateIndex].ptr;
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pScreen->CloseScreen = pScreenPriv->SavedCloseScreen;
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pScrn->EnableDisableFBAccess = pScreenPriv->SavedEnableDisableFBAccess;
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xfree (pScreenPriv);
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return pScreen->CloseScreen (i, pScreen);
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}
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static void
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exaXorgEnableDisableFBAccess (int index, Bool enable)
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{
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ScreenPtr pScreen = screenInfo.screens[index];
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ExaXorgScreenPrivPtr pScreenPriv =
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pScreen->devPrivates[exaXorgScreenPrivateIndex].ptr;
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if (!enable)
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exaEnableDisableFBAccess (index, enable);
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if (pScreenPriv->SavedEnableDisableFBAccess)
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pScreenPriv->SavedEnableDisableFBAccess (index, enable);
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if (enable)
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exaEnableDisableFBAccess (index, enable);
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}
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/**
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* This will be called during exaDriverInit, giving us the chance to set options
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* and hook in our EnableDisableFBAccess.
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*/
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void
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exaDDXDriverInit(ScreenPtr pScreen)
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{
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/* Do NOT use XF86SCRNINFO macro here!! */
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ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
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ExaXorgScreenPrivPtr pScreenPriv;
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if (exaXorgServerGeneration != serverGeneration) {
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exaXorgScreenPrivateIndex = AllocateScreenPrivateIndex();
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exaXorgServerGeneration = serverGeneration;
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}
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pScreenPriv = xcalloc (1, sizeof(ExaXorgScreenPrivRec));
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if (pScreenPriv == NULL)
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return;
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pScreen->devPrivates[exaXorgScreenPrivateIndex].ptr = pScreenPriv;
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pScreenPriv->SavedEnableDisableFBAccess = pScrn->EnableDisableFBAccess;
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pScrn->EnableDisableFBAccess = exaXorgEnableDisableFBAccess;
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pScreenPriv->SavedCloseScreen = pScreen->CloseScreen;
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pScreen->CloseScreen = exaXorgCloseScreen;
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}
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static MODULESETUPPROTO(exaSetup);
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static const OptionInfoRec EXAOptions[] = {
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{ -1, NULL,
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OPTV_NONE, {0}, FALSE }
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};
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/*ARGSUSED*/
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static const OptionInfoRec *
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EXAAvailableOptions(void *unused)
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{
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return (EXAOptions);
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}
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static XF86ModuleVersionInfo exaVersRec =
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{
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"exa",
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MODULEVENDORSTRING,
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MODINFOSTRING1,
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MODINFOSTRING2,
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XORG_VERSION_CURRENT,
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1, 2, 0,
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ABI_CLASS_VIDEODRV, /* requires the video driver ABI */
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ABI_VIDEODRV_VERSION,
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MOD_CLASS_NONE,
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{0,0,0,0}
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};
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XF86ModuleData exaModuleData = { &exaVersRec, exaSetup, NULL };
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ModuleInfoRec EXA = {
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1,
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"EXA",
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NULL,
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0,
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EXAAvailableOptions,
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};
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/*ARGSUSED*/
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static pointer
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exaSetup(pointer Module, pointer Options, int *ErrorMajor, int *ErrorMinor)
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{
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static Bool Initialised = FALSE;
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if (!Initialised) {
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Initialised = TRUE;
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#ifndef REMOVE_LOADER_CHECK_MODULE_INFO
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if (xf86LoaderCheckSymbol("xf86AddModuleInfo"))
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#endif
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xf86AddModuleInfo(&EXA, Module);
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}
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return (pointer)TRUE;
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}
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