| 1 | // |
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| 2 | // TxWin, Textmode Windowing Library |
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| 3 | // |
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| 4 | // Original code Copyright (c) 1995-2005 Fsys Software and Jan van Wijk |
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| 5 | // |
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| 6 | // ========================================================================== |
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| 7 | // |
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| 8 | // This file contains Original Code and/or Modifications of Original Code as |
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| 9 | // defined in and that are subject to the GNU Lesser General Public License. |
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| 10 | // You may not use this file except in compliance with the License. |
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| 11 | // BY USING THIS FILE YOU AGREE TO ALL TERMS AND CONDITIONS OF THE LICENSE. |
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| 12 | // A copy of the License is provided with the Original Code and Modifications, |
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| 13 | // and is also available at http://www.dfsee.com/txwin/lgpl.htm |
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| 14 | // |
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| 15 | // This library is free software; you can redistribute it and/or modify |
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| 16 | // it under the terms of the GNU Lesser General Public License as published |
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| 17 | // by the Free Software Foundation; either version 2.1 of the License, |
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| 18 | // or (at your option) any later version. |
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| 19 | // |
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| 20 | // This library is distributed in the hope that it will be useful, |
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| 21 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 22 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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| 23 | // See the GNU Lesser General Public License for more details. |
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| 24 | // |
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| 25 | // You should have received a copy of the GNU Lesser General Public License |
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| 26 | // along with this library; (lgpl.htm) if not, write to the Free Software |
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| 27 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 28 | // |
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| 29 | // Questions on TxWin licensing can be directed to: txwin@fsys.nl |
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| 30 | // |
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| 31 | // ========================================================================== |
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| 32 | // |
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| 33 | // Binary value SWAP low/high parts |
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| 34 | // |
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| 35 | // Author: J. van Wijk |
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| 36 | // |
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| 37 | // JvW 24-07-2005 Initial version, split off from TXUTIL |
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| 38 | |
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| 39 | #include <txlib.h> |
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| 40 | |
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| 41 | |
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| 42 | /*****************************************************************************/ |
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| 43 | // Convert USHORT value from big to little endian or vice-versa |
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| 44 | /*****************************************************************************/ |
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| 45 | USHORT txSwapUS // RET converted value |
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| 46 | ( |
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| 47 | USHORT val // IN value |
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| 48 | ) |
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| 49 | { |
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| 50 | USHORT rc; |
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| 51 | |
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| 52 | rc = (val & 0x00ff) << 8; |
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| 53 | rc += (val & 0xff00) >> 8; |
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| 54 | |
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| 55 | return (rc); |
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| 56 | } // end 'txSwapUS' |
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| 57 | /*---------------------------------------------------------------------------*/ |
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| 58 | |
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| 59 | |
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| 60 | /*****************************************************************************/ |
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| 61 | // Convert ULONG value from big to little endian or vice-versa |
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| 62 | /*****************************************************************************/ |
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| 63 | ULONG txSwapUL // RET converted value |
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| 64 | ( |
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| 65 | ULONG val // IN value |
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| 66 | ) |
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| 67 | { |
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| 68 | ULONG rc; |
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| 69 | |
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| 70 | rc = (val & 0x000000ff) << 24; |
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| 71 | rc += (val & 0x0000ff00) << 8; |
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| 72 | rc += (val & 0x00ff0000) >> 8; |
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| 73 | rc += (val & 0xff000000) >> 24; |
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| 74 | |
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| 75 | return (rc); |
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| 76 | } // end 'txSwapUL' |
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| 77 | /*---------------------------------------------------------------------------*/ |
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