Mercurial > sdl-ios-xcode
annotate include/SDL_rwops.h @ 1363:dc623bb58c9a
Fixed building with cygwin
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 16 Feb 2006 20:17:43 +0000 |
| parents | c71e05b4dc2e |
| children | d910939febfa |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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Updated copyright information and removed rcs id lines (problematic in branch merges)
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
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Updated copyright information and removed rcs id lines (problematic in branch merges)
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
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c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
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13 Lesser General Public License for more details. |
| 0 | 14 |
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c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
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15 You should have received a copy of the GNU Lesser General Public |
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c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
930
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16 License along with this library; if not, write to the Free Software |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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b8688cfdc232
Updated the headers with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 /* This file provides a general interface for SDL to read and write | |
| 24 data sources. It can easily be extended to files, memory, etc. | |
| 25 */ | |
| 26 | |
| 27 #ifndef _SDL_RWops_h | |
| 28 #define _SDL_RWops_h | |
| 29 | |
|
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Fixed build problem with SDL_string.c
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30 #include "SDL_stdinc.h" |
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c71e05b4dc2e
More header massaging... works great on Windows. ;-)
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31 #include "SDL_error.h" |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
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32 |
| 0 | 33 #include "begin_code.h" |
| 34 /* Set up for C function definitions, even when using C++ */ | |
| 35 #ifdef __cplusplus | |
| 36 extern "C" { | |
| 37 #endif | |
| 38 | |
| 39 /* This is the read/write operation structure -- very basic */ | |
| 40 | |
| 41 typedef struct SDL_RWops { | |
| 42 /* Seek to 'offset' relative to whence, one of stdio's whence values: | |
| 43 SEEK_SET, SEEK_CUR, SEEK_END | |
| 44 Returns the final offset in the data source. | |
| 45 */ | |
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930
02759105b989
Date: Fri, 20 Aug 2004 08:31:20 +0200
Sam Lantinga <slouken@libsdl.org>
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769
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46 int (SDLCALL *seek)(struct SDL_RWops *context, int offset, int whence); |
| 0 | 47 |
| 48 /* Read up to 'num' objects each of size 'objsize' from the data | |
| 49 source to the area pointed at by 'ptr'. | |
| 50 Returns the number of objects read, or -1 if the read failed. | |
| 51 */ | |
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930
02759105b989
Date: Fri, 20 Aug 2004 08:31:20 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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52 int (SDLCALL *read)(struct SDL_RWops *context, void *ptr, int size, int maxnum); |
| 0 | 53 |
| 54 /* Write exactly 'num' objects each of size 'objsize' from the area | |
| 55 pointed at by 'ptr' to data source. | |
| 56 Returns 'num', or -1 if the write failed. | |
| 57 */ | |
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930
02759105b989
Date: Fri, 20 Aug 2004 08:31:20 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
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58 int (SDLCALL *write)(struct SDL_RWops *context, const void *ptr, int size, int num); |
| 0 | 59 |
| 60 /* Close and free an allocated SDL_FSops structure */ | |
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02759105b989
Date: Fri, 20 Aug 2004 08:31:20 +0200
Sam Lantinga <slouken@libsdl.org>
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diff
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61 int (SDLCALL *close)(struct SDL_RWops *context); |
| 0 | 62 |
| 63 Uint32 type; | |
| 64 union { | |
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It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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65 #ifdef HAVE_STDIO_H |
| 0 | 66 struct { |
| 67 int autoclose; | |
| 68 FILE *fp; | |
| 69 } stdio; | |
|
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It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
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70 #endif |
| 0 | 71 struct { |
| 72 Uint8 *base; | |
| 73 Uint8 *here; | |
| 74 Uint8 *stop; | |
| 75 } mem; | |
| 76 struct { | |
| 77 void *data1; | |
| 78 } unknown; | |
| 79 } hidden; | |
| 80 | |
| 81 } SDL_RWops; | |
| 82 | |
| 83 | |
| 84 /* Functions to create SDL_RWops structures from various data sources */ | |
| 85 | |
|
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9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
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86 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFile(const char *file, const char *mode); |
| 0 | 87 |
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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
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88 #ifdef HAVE_STDIO_H |
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337
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
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parents:
297
diff
changeset
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89 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFP(FILE *fp, int autoclose); |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
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parents:
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90 #endif |
| 0 | 91 |
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337
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
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parents:
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diff
changeset
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92 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromMem(void *mem, int size); |
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764
974c0fb74bf8
Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents:
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93 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromConstMem(const void *mem, int size); |
| 0 | 94 |
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9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
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parents:
297
diff
changeset
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95 extern DECLSPEC SDL_RWops * SDLCALL SDL_AllocRW(void); |
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9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
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96 extern DECLSPEC void SDLCALL SDL_FreeRW(SDL_RWops *area); |
| 0 | 97 |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
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98 #define RW_SEEK_SET 0 /* Seek from the beginning of data */ |
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450721ad5436
It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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99 #define RW_SEEK_CUR 1 /* Seek relative to current read point */ |
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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
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100 #define RW_SEEK_END 2 /* Seek relative to the end of data */ |
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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
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101 |
| 0 | 102 /* Macros to easily read and write from an SDL_RWops structure */ |
| 103 #define SDL_RWseek(ctx, offset, whence) (ctx)->seek(ctx, offset, whence) | |
|
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It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
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104 #define SDL_RWtell(ctx) (ctx)->seek(ctx, 0, RW_SEEK_CUR) |
| 0 | 105 #define SDL_RWread(ctx, ptr, size, n) (ctx)->read(ctx, ptr, size, n) |
| 106 #define SDL_RWwrite(ctx, ptr, size, n) (ctx)->write(ctx, ptr, size, n) | |
| 107 #define SDL_RWclose(ctx) (ctx)->close(ctx) | |
| 108 | |
| 109 | |
|
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
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110 /* Read an item of the specified endianness and return in native format */ |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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111 extern DECLSPEC Uint16 SDLCALL SDL_ReadLE16(SDL_RWops *src); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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112 extern DECLSPEC Uint16 SDLCALL SDL_ReadBE16(SDL_RWops *src); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
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113 extern DECLSPEC Uint32 SDLCALL SDL_ReadLE32(SDL_RWops *src); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
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114 extern DECLSPEC Uint32 SDLCALL SDL_ReadBE32(SDL_RWops *src); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
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115 extern DECLSPEC Uint64 SDLCALL SDL_ReadLE64(SDL_RWops *src); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
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116 extern DECLSPEC Uint64 SDLCALL SDL_ReadBE64(SDL_RWops *src); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
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117 |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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118 /* Write an item of native format to the specified endianness */ |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
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119 extern DECLSPEC int SDLCALL SDL_WriteLE16(SDL_RWops *dst, Uint16 value); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
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120 extern DECLSPEC int SDLCALL SDL_WriteBE16(SDL_RWops *dst, Uint16 value); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
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121 extern DECLSPEC int SDLCALL SDL_WriteLE32(SDL_RWops *dst, Uint32 value); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
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122 extern DECLSPEC int SDLCALL SDL_WriteBE32(SDL_RWops *dst, Uint32 value); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
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changeset
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123 extern DECLSPEC int SDLCALL SDL_WriteLE64(SDL_RWops *dst, Uint64 value); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
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changeset
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124 extern DECLSPEC int SDLCALL SDL_WriteBE64(SDL_RWops *dst, Uint64 value); |
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22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
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125 |
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Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
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126 |
| 0 | 127 /* Ends C function definitions when using C++ */ |
| 128 #ifdef __cplusplus | |
| 129 } | |
| 130 #endif | |
| 131 #include "close_code.h" | |
| 132 | |
| 133 #endif /* _SDL_RWops_h */ |