File indexing completed on 2024-12-22 04:33:42 

0001 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
0002 /* ***** BEGIN LICENSE BLOCK *****
0003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
0004  *
0005  * The contents of this file are subject to the Mozilla Public License Version
0006  * 1.1 (the "License"); you may not use this file except in compliance with
0007  * the License. You may obtain a copy of the License at
0008  * http://www.mozilla.org/MPL/
0009  *
0010  * Software distributed under the License is distributed on an "AS IS" basis,
0011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
0012  * for the specific language governing rights and limitations under the
0013  * License.
0014  *
0015  * The Original Code is mozilla.org code.
0016  *
0017  * The Initial Developer of the Original Code is
0018  * Netscape Communications Corporation.
0019  * Portions created by the Initial Developer are Copyright (C) 1998
0020  * the Initial Developer. All Rights Reserved.
0021  *
0022  * Contributor(s):
0023  *
0024  * Alternatively, the contents of this file may be used under the terms of
0025  * either the GNU General Public License Version 2 or later (the "GPL"), or
0026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
0027  * in which case the provisions of the GPL or the LGPL are applicable instead
0028  * of those above. If you wish to allow use of your version of this file only
0029  * under the terms of either the GPL or the LGPL, and not to allow others to
0030  * use your version of this file under the terms of the MPL, indicate your
0031  * decision by deleting the provisions above and replace them with the notice
0032  * and other provisions required by the GPL or the LGPL. If you do not delete
0033  * the provisions above, a recipient may use your version of this file under
0034  * the terms of any one of the MPL, the GPL or the LGPL.
0035  *
0036  * ***** END LICENSE BLOCK ***** */
0037 
0038 #ifndef nsPkgInt_h__
0039 #define nsPkgInt_h__
0040 #include "nscore.h"
0041 
0042 typedef enum {
0043   eIdxSft4bits  = 3,
0044   eIdxSft8bits  = 2,
0045   eIdxSft16bits = 1
0046 } nsIdxSft; 
0047 
0048 typedef enum {
0049   eSftMsk4bits  = 7,
0050   eSftMsk8bits  = 3,
0051   eSftMsk16bits = 1
0052 } nsSftMsk; 
0053 
0054 typedef enum {
0055   eBitSft4bits  = 2,
0056   eBitSft8bits  = 3,
0057   eBitSft16bits = 4
0058 } nsBitSft; 
0059 
0060 typedef enum {
0061   eUnitMsk4bits  = 0x0000000FL,
0062   eUnitMsk8bits  = 0x000000FFL,
0063   eUnitMsk16bits = 0x0000FFFFL
0064 } nsUnitMsk; 
0065 
0066 typedef struct nsPkgInt {
0067   nsIdxSft  idxsft;
0068   nsSftMsk  sftmsk;
0069   nsBitSft  bitsft;
0070   nsUnitMsk unitmsk;
0071   PRUint32  *data;
0072 } nsPkgInt;
0073 
0074 
0075 #define PCK16BITS(a,b)            ((PRUint32)(((b) << 16) | (a)))
0076 
0077 #define PCK8BITS(a,b,c,d)         PCK16BITS( ((PRUint32)(((b) << 8) | (a))),  \
0078                                              ((PRUint32)(((d) << 8) | (c))))
0079 
0080 #define PCK4BITS(a,b,c,d,e,f,g,h) PCK8BITS(  ((PRUint32)(((b) << 4) | (a))), \
0081                                              ((PRUint32)(((d) << 4) | (c))), \
0082                                              ((PRUint32)(((f) << 4) | (e))), \
0083                                              ((PRUint32)(((h) << 4) | (g))) )
0084 
0085 #define GETFROMPCK(i, c) \
0086  (((((c).data)[(i)>>(c).idxsft])>>(((i)&(c).sftmsk)<<(c).bitsft))&(c).unitmsk)
0087 
0088 #endif /* nsPkgInt_h__ */
0089