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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 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@devolution.com
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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 }
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