annotate src/endian/SDL_endian.c @ 571:8e3ce997621c

Date: Thu, 16 Jan 2003 13:48:31 +0200 From: "Mike Gorchak" Subject: All QNX patches whole patches concerning QNX. Almost all code has been rewritten by Julian and me. Added initial support for hw overlays in QNX and many many others fixes. P.S. This patches has been reviewed by Dave Rempel from QSSL and included in SDL 1.2.5 distribution, which coming on 3rd party CD for newest 6.2.1 version of QNX, which will be available soon.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 20 Jan 2003 01:38:37 +0000
parents f6ffac90895c
children b8d311d90021
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* Functions for dynamically reading and writing endian-specific values */
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29
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30 #include "SDL_endian.h"
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31
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32 Uint16 SDL_ReadLE16 (SDL_RWops *src)
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33 {
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34 Uint16 value;
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35
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36 SDL_RWread(src, &value, (sizeof value), 1);
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37 return(SDL_SwapLE16(value));
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38 }
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39 Uint16 SDL_ReadBE16 (SDL_RWops *src)
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40 {
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41 Uint16 value;
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42
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43 SDL_RWread(src, &value, (sizeof value), 1);
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44 return(SDL_SwapBE16(value));
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45 }
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46 Uint32 SDL_ReadLE32 (SDL_RWops *src)
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47 {
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48 Uint32 value;
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49
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50 SDL_RWread(src, &value, (sizeof value), 1);
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51 return(SDL_SwapLE32(value));
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52 }
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53 Uint32 SDL_ReadBE32 (SDL_RWops *src)
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54 {
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55 Uint32 value;
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56
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57 SDL_RWread(src, &value, (sizeof value), 1);
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58 return(SDL_SwapBE32(value));
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59 }
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60 Uint64 SDL_ReadLE64 (SDL_RWops *src)
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61 {
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62 Uint64 value;
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63
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64 SDL_RWread(src, &value, (sizeof value), 1);
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65 return(SDL_SwapLE64(value));
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66 }
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67 Uint64 SDL_ReadBE64 (SDL_RWops *src)
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68 {
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69 Uint64 value;
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70
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71 SDL_RWread(src, &value, (sizeof value), 1);
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72 return(SDL_SwapBE64(value));
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73 }
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74
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75 int SDL_WriteLE16 (SDL_RWops *dst, Uint16 value)
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76 {
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77 value = SDL_SwapLE16(value);
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78 return(SDL_RWwrite(dst, &value, (sizeof value), 1));
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79 }
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80 int SDL_WriteBE16 (SDL_RWops *dst, Uint16 value)
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81 {
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82 value = SDL_SwapBE16(value);
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83 return(SDL_RWwrite(dst, &value, (sizeof value), 1));
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84 }
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85 int SDL_WriteLE32 (SDL_RWops *dst, Uint32 value)
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86 {
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87 value = SDL_SwapLE32(value);
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88 return(SDL_RWwrite(dst, &value, (sizeof value), 1));
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89 }
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90 int SDL_WriteBE32 (SDL_RWops *dst, Uint32 value)
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91 {
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92 value = SDL_SwapBE32(value);
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93 return(SDL_RWwrite(dst, &value, (sizeof value), 1));
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94 }
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95 int SDL_WriteLE64 (SDL_RWops *dst, Uint64 value)
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96 {
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97 value = SDL_SwapLE64(value);
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98 return(SDL_RWwrite(dst, &value, (sizeof value), 1));
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99 }
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100 int SDL_WriteBE64 (SDL_RWops *dst, Uint64 value)
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101 {
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102 value = SDL_SwapBE64(value);
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103 return(SDL_RWwrite(dst, &value, (sizeof value), 1));
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104 }