82 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			82 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			C
		
	
	
	
/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86Versions.c,v 1.2 2003/08/24 20:01:19 dawes Exp $ */
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/*
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 * Copyright (c) 2003 by The XFree86 Project, 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"),
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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 shall be included in
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 * 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,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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 * OTHER DEALINGS IN THE SOFTWARE.
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 *
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 * Except as contained in this notice, the name of the copyright holder(s)
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 * and author(s) shall not be used in advertising or otherwise to promote
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 * the sale, use or other dealings in this Software without prior written
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 * authorization from the copyright holder(s) and author(s).
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 */
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include "xf86.h"
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#include "xf86OSmouse.h"
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#include "xf86OSKbd.h"
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static CARD32 registeredVersions[NUM_BUILTIN_IFS];
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_X_EXPORT CARD32
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xf86GetBuiltinInterfaceVersion(BuiltinInterface iface, int flags)
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{
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    if (iface < 0 || iface >= NUM_BUILTIN_IFS) {
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	xf86Msg(X_ERROR, "xf86GetBuiltinInterfaceVersion: Unexpected interface"
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		"query: %d\n", iface);
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	return 0;
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    }
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    if (registeredVersions[iface])
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	return registeredVersions[iface];
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    /* Most built-in interfaces are handled this way. */
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    switch (iface) {
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    case BUILTIN_IF_OSMOUSE:
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	return OS_MOUSE_VERSION_CURRENT;
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    case BUILTIN_IF_OSKBD:
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	return OS_KBD_VERSION_CURRENT;
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    default:
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	xf86Msg(X_ERROR, "xf86GetBuiltinInterfaceVersion: internal error: "
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		"interface %d not handled\n", iface);
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	return 0;
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    }
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}
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_X_EXPORT Bool
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xf86RegisterBuiltinInterfaceVersion(BuiltinInterface iface, CARD32 version,
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				    int flags)
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{
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    if (iface < 0 || iface >= NUM_BUILTIN_IFS) {
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	xf86Msg(X_ERROR, "xf86RegisterBuiltinInterfaceVersion: "
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		"unexpected interface number: %d\n", iface);
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	return FALSE;
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    }
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    if (version == 0) {
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	xf86Msg(X_ERROR, "xf86RegisterBuiltinInterfaceVersion: "
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		"versions must be greater than zero\n");
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	return FALSE;
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    }
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    registeredVersions[iface] = version;
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    return TRUE;
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}
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