mibstore.c 1.87 KB
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/*
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 * Copyright 2007 Red Hat, Inc.
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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"),
 * 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:
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 *
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 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * 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,
 * 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.
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 */

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#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
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#endif
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#include "scrnintstr.h"
#include "mibstore.h"
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/*
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 * There is no longer an mi implementation of backing store.  This function
 * is only for source compatibility with old drivers.
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 *
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 * Note though that you do get backing store for free if your server has
 * Composite enabled, since the automatic redirection mechanism provides
 * essentially the same functionality.  See compChangeWindowAttributes()
 * for the implementation.
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 */

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void
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miInitializeBackingStore (ScreenPtr pScreen)
{
    pScreen->SaveDoomedAreas = NULL;
    pScreen->RestoreAreas = NULL;
    pScreen->ExposeCopy = NULL;
    pScreen->TranslateBackingStore = NULL;
    pScreen->ClearBackingStore = NULL;
    pScreen->DrawGuarantee = NULL;
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}