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annotate src/file/SDL_rwops.c @ 2173:26233707bc94

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author Sam Lantinga <slouken@libsdl.org>
date Wed, 11 Jul 2007 14:51:49 +0000
parents c2ffcc627701
children 8b76cc268771
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 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 Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 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 Lesser 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 Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 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 #include "SDL_config.h"
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23
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24 /* This file provides a general interface for SDL to read and write
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25 data sources. It can easily be extended to files, memory, etc.
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26 */
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27
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28 #include "SDL_endian.h"
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29 #include "SDL_rwops.h"
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30
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31
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32 #ifdef __WIN32__
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33
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34 /* Functions to read/write Win32 API file pointers */
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35 /* Will not use it on WinCE because stdio is buffered, it means
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36 faster, and all stdio functions anyway are embedded in coredll.dll -
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37 the main wince dll*/
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38
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39 #define WINDOWS_LEAN_AND_MEAN
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40 #include <windows.h>
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41
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42 #ifndef INVALID_SET_FILE_POINTER
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43 #define INVALID_SET_FILE_POINTER 0xFFFFFFFF
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44 #endif
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45
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46 #define READAHEAD_BUFFER_SIZE 1024
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47
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48 static int SDLCALL
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49 win32_file_open(SDL_RWops * context, const char *filename, const char *mode)
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50 {
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51 #ifndef _WIN32_WCE
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52 UINT old_error_mode;
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53 #endif
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54 HANDLE h;
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55 DWORD r_right, w_right;
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56 DWORD must_exist, truncate;
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57 int a_mode;
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58
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59 if (!context)
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60 return -1; /* failed (invalid call) */
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61
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62 context->hidden.win32io.h = INVALID_HANDLE_VALUE; /* mark this as unusable */
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63 context->hidden.win32io.buffer.data = NULL;
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64 context->hidden.win32io.buffer.size = 0;
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65 context->hidden.win32io.buffer.left = 0;
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66
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67 /* "r" = reading, file must exist */
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68 /* "w" = writing, truncate existing, file may not exist */
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69 /* "r+"= reading or writing, file must exist */
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70 /* "a" = writing, append file may not exist */
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71 /* "a+"= append + read, file may not exist */
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72 /* "w+" = read, write, truncate. file may not exist */
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73
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74 must_exist = (SDL_strchr(mode, 'r') != NULL) ? OPEN_EXISTING : 0;
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75 truncate = (SDL_strchr(mode, 'w') != NULL) ? CREATE_ALWAYS : 0;
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76 r_right = (SDL_strchr(mode, '+') != NULL
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77 || must_exist) ? GENERIC_READ : 0;
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78 a_mode = (SDL_strchr(mode, 'a') != NULL) ? OPEN_ALWAYS : 0;
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79 w_right = (a_mode || SDL_strchr(mode, '+')
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80 || truncate) ? GENERIC_WRITE : 0;
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81
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82 if (!r_right && !w_right) /* inconsistent mode */
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83 return -1; /* failed (invalid call) */
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84
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85 context->hidden.win32io.buffer.data =
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86 (char *) SDL_malloc(READAHEAD_BUFFER_SIZE);
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87 if (!context->hidden.win32io.buffer.data) {
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88 SDL_OutOfMemory();
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89 return -1;
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90 }
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91 #ifdef _WIN32_WCE
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92 {
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93 size_t size = SDL_strlen(filename) + 1;
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94 wchar_t *filenameW = SDL_stack_alloc(wchar_t, size);
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95
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96 if (MultiByteToWideChar(CP_UTF8, 0, filename, -1, filenameW, size) ==
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97 0) {
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98 SDL_stack_free(filenameW);
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99 SDL_free(context->hidden.win32io.buffer.data);
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100 context->hidden.win32io.buffer.data = NULL;
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101 SDL_SetError("Unable to convert filename to Unicode");
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102 return -1;
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103 }
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104 h = CreateFile(filenameW, (w_right | r_right),
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105 (w_right) ? 0 : FILE_SHARE_READ, NULL,
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106 (must_exist | truncate | a_mode),
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107 FILE_ATTRIBUTE_NORMAL, NULL);
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108 SDL_stack_free(filenameW);
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109 }
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110 #else
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111 /* Do not open a dialog box if failure */
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112 old_error_mode =
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113 SetErrorMode(SEM_NOOPENFILEERRORBOX | SEM_FAILCRITICALERRORS);
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114
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115 h = CreateFile(filename, (w_right | r_right),
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116 (w_right) ? 0 : FILE_SHARE_READ, NULL,
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117 (must_exist | truncate | a_mode), FILE_ATTRIBUTE_NORMAL,
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118 NULL);
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119
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120 /* restore old behaviour */
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121 SetErrorMode(old_error_mode);
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122 #endif /* _WIN32_WCE */
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123
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124 if (h == INVALID_HANDLE_VALUE) {
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Ryan C. Gordon <icculus@icculus.org>
parents: 2164
diff changeset
125 SDL_free(context->hidden.win32io.buffer.data);
c2ffcc627701 Merged r3201:3204 from branches/SDL-1.2: win32 rwops tweaks.
Ryan C. Gordon <icculus@icculus.org>
parents: 2164
diff changeset
126 context->hidden.win32io.buffer.data = NULL;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
127 SDL_SetError("Couldn't open %s", filename);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
128 return -2; /* failed (CreateFile) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
129 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
130 context->hidden.win32io.h = h;
2161
e635db5b45ef Oh yeah, they're boolean values...
Sam Lantinga <slouken@libsdl.org>
parents: 2160
diff changeset
131 context->hidden.win32io.append = a_mode ? SDL_TRUE : SDL_FALSE;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
132
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
133 return 0; /* ok */
1446
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Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
134 }
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
135 static long SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
136 win32_file_seek(SDL_RWops * context, long offset, int whence)
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
137 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
138 DWORD win32whence;
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
139 long file_pos;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
140
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
141 if (!context || context->hidden.win32io.h == INVALID_HANDLE_VALUE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
142 SDL_SetError("win32_file_seek: invalid context/file not opened");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
143 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
144 }
1446
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Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
145
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
146 /* FIXME: We may be able to satisfy the seek within buffered data */
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
147 if (whence == RW_SEEK_CUR && context->hidden.win32io.buffer.left) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
148 offset -= context->hidden.win32io.buffer.left;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
149 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
150 context->hidden.win32io.buffer.left = 0;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
151
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
152 switch (whence) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
153 case RW_SEEK_SET:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
154 win32whence = FILE_BEGIN;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
155 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
156 case RW_SEEK_CUR:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
157 win32whence = FILE_CURRENT;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
158 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
159 case RW_SEEK_END:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
160 win32whence = FILE_END;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
161 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
162 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
163 SDL_SetError("win32_file_seek: Unknown value for 'whence'");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
164 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
165 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
166
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
167 file_pos =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
168 SetFilePointer(context->hidden.win32io.h, offset, NULL, win32whence);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
169
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
170 if (file_pos != INVALID_SET_FILE_POINTER)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
171 return file_pos; /* success */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
172
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
173 SDL_Error(SDL_EFSEEK);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
174 return -1; /* error */
1446
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Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
175 }
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
176 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
177 win32_file_read(SDL_RWops * context, void *ptr, size_t size, size_t maxnum)
1465
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Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
178 {
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
179 size_t total_need;
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
180 size_t total_read = 0;
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
181 size_t read_ahead;
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
182 DWORD byte_read;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
183
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
184 total_need = size * maxnum;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
185
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
186 if (!context || context->hidden.win32io.h == INVALID_HANDLE_VALUE
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
187 || !total_need)
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
188 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
189
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
190 if (context->hidden.win32io.buffer.left > 0) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
191 void *data = (char *) context->hidden.win32io.buffer.data +
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
192 context->hidden.win32io.buffer.size -
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
193 context->hidden.win32io.buffer.left;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
194 read_ahead = SDL_min(total_need, context->hidden.win32io.buffer.left);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
195 SDL_memcpy(ptr, data, read_ahead);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
196 context->hidden.win32io.buffer.left -= read_ahead;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
197
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
198 if (read_ahead == total_need) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
199 return maxnum;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
200 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
201 ptr = (char *) ptr + read_ahead;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
202 total_need -= read_ahead;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
203 total_read += read_ahead;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
204 }
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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parents: 1978
diff changeset
205
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
206 if (total_need < READAHEAD_BUFFER_SIZE) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
207 if (!ReadFile
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
208 (context->hidden.win32io.h, context->hidden.win32io.buffer.data,
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
209 READAHEAD_BUFFER_SIZE, &byte_read, NULL)) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
210 SDL_Error(SDL_EFREAD);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
211 return 0;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
212 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
213 read_ahead = SDL_min(total_need, (int) byte_read);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
214 SDL_memcpy(ptr, context->hidden.win32io.buffer.data, read_ahead);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
215 context->hidden.win32io.buffer.size = byte_read;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
216 context->hidden.win32io.buffer.left = byte_read - read_ahead;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
217 total_read += read_ahead;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
218 } else {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
219 if (!ReadFile
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
220 (context->hidden.win32io.h, ptr, total_need, &byte_read, NULL)) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
221 SDL_Error(SDL_EFREAD);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
222 return 0;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
223 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
224 total_read += byte_read;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
225 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
226 return (total_read / size);
1446
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Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
227 }
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
228 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
229 win32_file_write(SDL_RWops * context, const void *ptr, size_t size,
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
230 size_t num)
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
231 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
232
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
233 size_t total_bytes;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
234 DWORD byte_written, nwritten;
1446
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Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
235
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
236 total_bytes = size * num;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
237
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
238 if (!context || context->hidden.win32io.h == INVALID_HANDLE_VALUE
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
239 || total_bytes <= 0 || !size)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
240 return 0;
1446
47bf1767c4ca Date: Mon, 27 Feb 2006 02:17:29 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
241
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
242 if (context->hidden.win32io.buffer.left) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
243 SetFilePointer(context->hidden.win32io.h,
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
244 -context->hidden.win32io.buffer.left, NULL,
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
245 FILE_CURRENT);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
246 context->hidden.win32io.buffer.left = 0;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
247 }
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
248
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
249 /* if in append mode, we must go to the EOF before write */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
250 if (context->hidden.win32io.append) {
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
251 if (SetFilePointer(context->hidden.win32io.h, 0L, NULL, FILE_END) ==
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
252 INVALID_SET_FILE_POINTER) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
253 SDL_Error(SDL_EFWRITE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
254 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
255 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
256 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
257
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
258 if (!WriteFile
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
259 (context->hidden.win32io.h, ptr, total_bytes, &byte_written, NULL)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
260 SDL_Error(SDL_EFWRITE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
261 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
262 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
263
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
264 nwritten = byte_written / size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
265 return nwritten;
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parents: 1402
diff changeset
266 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
267 static int SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
268 win32_file_close(SDL_RWops * context)
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
269 {
1895
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parents: 1769
diff changeset
270
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
271 if (context) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
272 if (context->hidden.win32io.h != INVALID_HANDLE_VALUE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
273 CloseHandle(context->hidden.win32io.h);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
274 context->hidden.win32io.h = INVALID_HANDLE_VALUE; /* to be sure */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
275 }
2159
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
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diff changeset
276 if (context->hidden.win32io.buffer.data) {
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
277 SDL_free(context->hidden.win32io.buffer.data);
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
278 context->hidden.win32io.buffer.data = NULL;
dd4753e47ed4 Merged read-ahead support for Win32 file I/O from SDL 1.2 revision 3183
Sam Lantinga <slouken@libsdl.org>
parents: 1978
diff changeset
279 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
280 SDL_FreeRW(context);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
281 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
282 return (0);
1446
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Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
283 }
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
284 #endif /* __WIN32__ */
1446
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Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
285
1447
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Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
286 #ifdef HAVE_STDIO_H
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
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parents: 1446
diff changeset
287
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
288 /* Functions to read/write stdio file pointers */
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
289
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
290 static long SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
291 stdio_seek(SDL_RWops * context, long offset, int whence)
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
292 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
293 if (fseek(context->hidden.stdio.fp, offset, whence) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
294 return (ftell(context->hidden.stdio.fp));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
295 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
296 SDL_Error(SDL_EFSEEK);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
297 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
298 }
1447
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parents: 1446
diff changeset
299 }
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
300 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
301 stdio_read(SDL_RWops * context, void *ptr, size_t size, size_t maxnum)
1447
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Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
302 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1769
diff changeset
303 size_t nread;
1446
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Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
304
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
305 nread = fread(ptr, size, maxnum, context->hidden.stdio.fp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
306 if (nread == 0 && ferror(context->hidden.stdio.fp)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
307 SDL_Error(SDL_EFREAD);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
308 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
309 return (nread);
1447
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parents: 1446
diff changeset
310 }
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
311 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
312 stdio_write(SDL_RWops * context, const void *ptr, size_t size, size_t num)
1447
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Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
313 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
314 size_t nwrote;
1446
47bf1767c4ca Date: Mon, 27 Feb 2006 02:17:29 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
315
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
316 nwrote = fwrite(ptr, size, num, context->hidden.stdio.fp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
317 if (nwrote == 0 && ferror(context->hidden.stdio.fp)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
318 SDL_Error(SDL_EFWRITE);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
319 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
320 return (nwrote);
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
321 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
322 static int SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
323 stdio_close(SDL_RWops * context)
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
324 {
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
325 int status = 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
326 if (context) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
327 if (context->hidden.stdio.autoclose) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
328 /* WARNING: Check the return value here! */
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
329 if (fclose(context->hidden.stdio.fp) != 0) {
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
330 SDL_Error(SDL_EFWRITE);
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
331 status = -1;
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
332 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
333 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
334 SDL_FreeRW(context);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
335 }
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
336 return status;
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
337 }
1446
47bf1767c4ca Date: Mon, 27 Feb 2006 02:17:29 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
338 #endif /* !HAVE_STDIO_H */
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
339
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
340 /* Functions to read/write memory pointers */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
341
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
342 static long SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
343 mem_seek(SDL_RWops * context, long offset, int whence)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
344 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
345 Uint8 *newpos;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
346
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
347 switch (whence) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
348 case RW_SEEK_SET:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
349 newpos = context->hidden.mem.base + offset;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
350 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
351 case RW_SEEK_CUR:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
352 newpos = context->hidden.mem.here + offset;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
353 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
354 case RW_SEEK_END:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
355 newpos = context->hidden.mem.stop + offset;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
356 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
357 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
358 SDL_SetError("Unknown value for 'whence'");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
359 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
360 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
361 if (newpos < context->hidden.mem.base) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
362 newpos = context->hidden.mem.base;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
363 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
364 if (newpos > context->hidden.mem.stop) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
365 newpos = context->hidden.mem.stop;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
366 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
367 context->hidden.mem.here = newpos;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
368 return (context->hidden.mem.here - context->hidden.mem.base);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
369 }
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
370 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
371 mem_read(SDL_RWops * context, void *ptr, size_t size, size_t maxnum)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
372 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
373 size_t total_bytes;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
374 size_t mem_available;
1078
e2ef6b7001fd Patch from Antonio SJ Musumeci:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
375
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
376 total_bytes = (maxnum * size);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
377 if ((maxnum <= 0) || (size <= 0)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
378 || ((total_bytes / maxnum) != (size_t) size)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
379 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
380 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
381
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
382 mem_available = (context->hidden.mem.stop - context->hidden.mem.here);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
383 if (total_bytes > mem_available) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
384 total_bytes = mem_available;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
385 }
1078
e2ef6b7001fd Patch from Antonio SJ Musumeci:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
386
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
387 SDL_memcpy(ptr, context->hidden.mem.here, total_bytes);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
388 context->hidden.mem.here += total_bytes;
1078
e2ef6b7001fd Patch from Antonio SJ Musumeci:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
389
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
390 return (total_bytes / size);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
391 }
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
392 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
393 mem_write(SDL_RWops * context, const void *ptr, size_t size, size_t num)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
395 if ((context->hidden.mem.here + (num * size)) > context->hidden.mem.stop) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
396 num = (context->hidden.mem.stop - context->hidden.mem.here) / size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
397 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
398 SDL_memcpy(context->hidden.mem.here, ptr, num * size);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
399 context->hidden.mem.here += num * size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
400 return (num);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401 }
2160
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
402 static size_t SDLCALL
00adbaed3910 Updated to use size_t instead of int for amounts of data.
Sam Lantinga <slouken@libsdl.org>
parents: 2159
diff changeset
403 mem_writeconst(SDL_RWops * context, const void *ptr, size_t size, size_t num)
764
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
404 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
405 SDL_SetError("Can't write to read-only memory");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
406 return (-1);
764
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
407 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
408 static int SDLCALL
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
409 mem_close(SDL_RWops * context)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
410 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
411 if (context) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
412 SDL_FreeRW(context);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
413 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
414 return (0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
415 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
416
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
417
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
418 /* Functions to create SDL_RWops structures from various data sources */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
419
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
420 SDL_RWops *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
421 SDL_RWFromFile(const char *file, const char *mode)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
422 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
423 SDL_RWops *rwops = NULL;
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
424 #ifdef HAVE_STDIO_H
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
425 FILE *fp = NULL;
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
426 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
427 if (!file || !*file || !mode || !*mode) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
428 SDL_SetError("SDL_RWFromFile(): No file or no mode specified");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
429 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
430 }
1465
8dfa9a6d69a5 Updated WinCE support by Dmitry (with some tweaks)
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
431 #if defined(__WIN32__)
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
432 rwops = SDL_AllocRW();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
433 if (!rwops)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
434 return NULL; /* SDL_SetError already setup by SDL_AllocRW() */
2164
d083a2e4433d Merged memory leak fix from SDL 1.2
Sam Lantinga <slouken@libsdl.org>
parents: 2161
diff changeset
435 if (win32_file_open(rwops, file, mode) < 0) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
436 SDL_FreeRW(rwops);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
437 return NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
438 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
439 rwops->seek = win32_file_seek;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
440 rwops->read = win32_file_read;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
441 rwops->write = win32_file_write;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
442 rwops->close = win32_file_close;
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
443
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
444 #elif HAVE_STDIO_H
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
445
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
446 fp = fopen(file, mode);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
447 if (fp == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
448 SDL_SetError("Couldn't open %s", file);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
449 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
450 rwops = SDL_RWFromFP(fp, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
451 }
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
452 #else
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
453 SDL_SetError("SDL not compiled with stdio support");
1446
47bf1767c4ca Date: Mon, 27 Feb 2006 02:17:29 +0100
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
454 #endif /* !HAVE_STDIO_H */
1447
515df0086eb7 Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents: 1446
diff changeset
455
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
456 return (rwops);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
457 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
458
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
459 #ifdef HAVE_STDIO_H
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
460 SDL_RWops *
2161
e635db5b45ef Oh yeah, they're boolean values...
Sam Lantinga <slouken@libsdl.org>
parents: 2160
diff changeset
461 SDL_RWFromFP(FILE * fp, SDL_bool autoclose)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
462 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
463 SDL_RWops *rwops = NULL;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
464
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
465 rwops = SDL_AllocRW();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
466 if (rwops != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
467 rwops->seek = stdio_seek;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
468 rwops->read = stdio_read;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
469 rwops->write = stdio_write;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
470 rwops->close = stdio_close;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
471 rwops->hidden.stdio.fp = fp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
472 rwops->hidden.stdio.autoclose = autoclose;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
473 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
474 return (rwops);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
475 }
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
476 #endif /* HAVE_STDIO_H */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
477
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
478 SDL_RWops *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
479 SDL_RWFromMem(void *mem, int size)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
480 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
481 SDL_RWops *rwops;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
482
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
483 rwops = SDL_AllocRW();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
484 if (rwops != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
485 rwops->seek = mem_seek;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
486 rwops->read = mem_read;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
487 rwops->write = mem_write;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
488 rwops->close = mem_close;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
489 rwops->hidden.mem.base = (Uint8 *) mem;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
490 rwops->hidden.mem.here = rwops->hidden.mem.base;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
491 rwops->hidden.mem.stop = rwops->hidden.mem.base + size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
492 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
493 return (rwops);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
494 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
495
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
496 SDL_RWops *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
497 SDL_RWFromConstMem(const void *mem, int size)
764
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
498 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
499 SDL_RWops *rwops;
764
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
500
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
501 rwops = SDL_AllocRW();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
502 if (rwops != NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
503 rwops->seek = mem_seek;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
504 rwops->read = mem_read;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
505 rwops->write = mem_writeconst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
506 rwops->close = mem_close;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
507 rwops->hidden.mem.base = (Uint8 *) mem;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
508 rwops->hidden.mem.here = rwops->hidden.mem.base;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
509 rwops->hidden.mem.stop = rwops->hidden.mem.base + size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
510 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
511 return (rwops);
764
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
512 }
974c0fb74bf8 Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents: 543
diff changeset
513
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
514 SDL_RWops *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
515 SDL_AllocRW(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
516 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
517 SDL_RWops *area;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
518
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
519 area = (SDL_RWops *) SDL_malloc(sizeof *area);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
520 if (area == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
521 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
522 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
523 return (area);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
524 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
525
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
526 void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
527 SDL_FreeRW(SDL_RWops * area)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
528 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
529 SDL_free(area);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
530 }
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
531
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
532 /* Functions for dynamically reading and writing endian-specific values */
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
533
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
534 Uint16
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
535 SDL_ReadLE16(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
536 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
537 Uint16 value;
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
538
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
539 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
540 return (SDL_SwapLE16(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
541 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
542
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
543 Uint16
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
544 SDL_ReadBE16(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
545 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
546 Uint16 value;
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
547
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
548 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
549 return (SDL_SwapBE16(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
550 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
551
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
552 Uint32
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
553 SDL_ReadLE32(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
554 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
555 Uint32 value;
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
556
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
557 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
558 return (SDL_SwapLE32(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
559 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
560
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
561 Uint32
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
562 SDL_ReadBE32(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
563 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
564 Uint32 value;
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
565
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
566 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
567 return (SDL_SwapBE32(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
568 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
569
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
570 Uint64
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
571 SDL_ReadLE64(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
572 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
573 Uint64 value;
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
574
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
575 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
576 return (SDL_SwapLE64(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
577 }
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
578
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
579 Uint64
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
580 SDL_ReadBE64(SDL_RWops * src)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
581 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
582 Uint64 value;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
583
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
584 SDL_RWread(src, &value, (sizeof value), 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
585 return (SDL_SwapBE64(value));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
586 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
587
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
588 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
589 SDL_WriteLE16(SDL_RWops * dst, Uint16 value)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
590 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
591 value = SDL_SwapLE16(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
592 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
593 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
594
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
595 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
596 SDL_WriteBE16(SDL_RWops * dst, Uint16 value)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
597 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
598 value = SDL_SwapBE16(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
599 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
600 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
601
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
602 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
603 SDL_WriteLE32(SDL_RWops * dst, Uint32 value)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
604 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
605 value = SDL_SwapLE32(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
606 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
607 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
608
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
609 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
610 SDL_WriteBE32(SDL_RWops * dst, Uint32 value)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
611 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
612 value = SDL_SwapBE32(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
613 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
614 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
615
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
616 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
617 SDL_WriteLE64(SDL_RWops * dst, Uint64 value)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
618 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
619 value = SDL_SwapLE64(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
620 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
621 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
622
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
623 int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
624 SDL_WriteBE64(SDL_RWops * dst, Uint64 value)
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
625 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
626 value = SDL_SwapBE64(value);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
627 return (SDL_RWwrite(dst, &value, (sizeof value), 1));
1354
22f39393668a Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
628 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
629
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1769
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