Mercurial > sdl-ios-xcode
annotate include/SDL_rwops.h @ 3950:9d9e15ab1697 SDL-1.2
Check if yasm supports a nasm-specific syntax we use (it doesn't in 0.5.0,
which is still common in Linux distros, and does in 0.6.0). Disable it if we
don't, attempting to fallback to using nasm. Thanks to Mike Frysinger for the
patch.
Fixes Bugzilla #393.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Mon, 04 Jun 2007 11:06:48 +0000 |
| parents | 2eb75f8a32ca |
| children | 782fd950bd46 c121d94672cb 255b0469ca83 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
930
diff
changeset
|
3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
930
diff
changeset
|
6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
930
diff
changeset
|
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 | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
930
diff
changeset
|
13 Lesser General Public License for more details. |
| 0 | 14 |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
930
diff
changeset
|
15 You should have received a copy of the GNU Lesser General Public |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
930
diff
changeset
|
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:
930
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
251
b8688cfdc232
Updated the headers with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
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 | |
|
1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
27 #ifndef _SDL_rwops_h |
|
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
28 #define _SDL_rwops_h |
| 0 | 29 |
|
1354
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
30 #include "SDL_stdinc.h" |
|
1358
c71e05b4dc2e
More header massaging... works great on Windows. ;-)
Sam Lantinga <slouken@libsdl.org>
parents:
1356
diff
changeset
|
31 #include "SDL_error.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
|
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 */ | |
|
930
02759105b989
Date: Fri, 20 Aug 2004 08:31:20 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
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 */ | |
|
930
02759105b989
Date: Fri, 20 Aug 2004 08:31:20 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
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 */ | |
|
930
02759105b989
Date: Fri, 20 Aug 2004 08:31:20 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
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 */ | |
|
930
02759105b989
Date: Fri, 20 Aug 2004 08:31:20 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
61 int (SDLCALL *close)(struct SDL_RWops *context); |
| 0 | 62 |
| 63 Uint32 type; | |
| 64 union { | |
|
1447
515df0086eb7
Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents:
1446
diff
changeset
|
65 #ifdef __WIN32__ |
|
1449
d7d96c87b6a6
Did I mention I'm anal? :) Fixed spacing in SDL_rwops.h
Sam Lantinga <slouken@libsdl.org>
parents:
1447
diff
changeset
|
66 struct { |
|
1447
515df0086eb7
Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents:
1446
diff
changeset
|
67 int append; |
|
515df0086eb7
Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents:
1446
diff
changeset
|
68 void* h; |
|
1449
d7d96c87b6a6
Did I mention I'm anal? :) Fixed spacing in SDL_rwops.h
Sam Lantinga <slouken@libsdl.org>
parents:
1447
diff
changeset
|
69 } win32io; |
|
1447
515df0086eb7
Prefer the raw Win32 API over stdio for file RWops
Sam Lantinga <slouken@libsdl.org>
parents:
1446
diff
changeset
|
70 #endif |
|
1446
47bf1767c4ca
Date: Mon, 27 Feb 2006 02:17:29 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
71 #ifdef HAVE_STDIO_H |
| 0 | 72 struct { |
| 73 int autoclose; | |
| 74 FILE *fp; | |
| 75 } stdio; | |
|
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
|
76 #endif |
| 0 | 77 struct { |
| 78 Uint8 *base; | |
| 79 Uint8 *here; | |
| 80 Uint8 *stop; | |
| 81 } mem; | |
| 82 struct { | |
| 83 void *data1; | |
| 84 } unknown; | |
| 85 } hidden; | |
| 86 | |
| 87 } SDL_RWops; | |
| 88 | |
| 89 | |
| 90 /* Functions to create SDL_RWops structures from various data sources */ | |
| 91 | |
|
337
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
92 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFile(const char *file, const char *mode); |
| 0 | 93 |
|
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
|
94 #ifdef HAVE_STDIO_H |
|
337
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
95 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFP(FILE *fp, int autoclose); |
|
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
|
96 #endif |
| 0 | 97 |
|
337
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
98 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromMem(void *mem, int size); |
|
764
974c0fb74bf8
Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents:
337
diff
changeset
|
99 extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromConstMem(const void *mem, int size); |
| 0 | 100 |
|
337
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
101 extern DECLSPEC SDL_RWops * SDLCALL SDL_AllocRW(void); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
102 extern DECLSPEC void SDLCALL SDL_FreeRW(SDL_RWops *area); |
| 0 | 103 |
|
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
|
104 #define RW_SEEK_SET 0 /* Seek from the beginning of data */ |
|
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
|
105 #define RW_SEEK_CUR 1 /* Seek relative to current read point */ |
|
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
|
106 #define RW_SEEK_END 2 /* Seek relative to the end of data */ |
|
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
|
107 |
| 0 | 108 /* Macros to easily read and write from an SDL_RWops structure */ |
| 109 #define SDL_RWseek(ctx, offset, whence) (ctx)->seek(ctx, offset, whence) | |
|
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
|
110 #define SDL_RWtell(ctx) (ctx)->seek(ctx, 0, RW_SEEK_CUR) |
| 0 | 111 #define SDL_RWread(ctx, ptr, size, n) (ctx)->read(ctx, ptr, size, n) |
| 112 #define SDL_RWwrite(ctx, ptr, size, n) (ctx)->write(ctx, ptr, size, n) | |
| 113 #define SDL_RWclose(ctx) (ctx)->close(ctx) | |
| 114 | |
| 115 | |
|
1354
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
116 /* Read an item of the specified endianness and return in native format */ |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
117 extern DECLSPEC Uint16 SDLCALL SDL_ReadLE16(SDL_RWops *src); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
118 extern DECLSPEC Uint16 SDLCALL SDL_ReadBE16(SDL_RWops *src); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
119 extern DECLSPEC Uint32 SDLCALL SDL_ReadLE32(SDL_RWops *src); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
120 extern DECLSPEC Uint32 SDLCALL SDL_ReadBE32(SDL_RWops *src); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
121 extern DECLSPEC Uint64 SDLCALL SDL_ReadLE64(SDL_RWops *src); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
122 extern DECLSPEC Uint64 SDLCALL SDL_ReadBE64(SDL_RWops *src); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
123 |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
124 /* Write an item of native format to the specified endianness */ |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
125 extern DECLSPEC int SDLCALL SDL_WriteLE16(SDL_RWops *dst, Uint16 value); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
126 extern DECLSPEC int SDLCALL SDL_WriteBE16(SDL_RWops *dst, Uint16 value); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
127 extern DECLSPEC int SDLCALL SDL_WriteLE32(SDL_RWops *dst, Uint32 value); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
128 extern DECLSPEC int SDLCALL SDL_WriteBE32(SDL_RWops *dst, Uint32 value); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
129 extern DECLSPEC int SDLCALL SDL_WriteLE64(SDL_RWops *dst, Uint64 value); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
130 extern DECLSPEC int SDLCALL SDL_WriteBE64(SDL_RWops *dst, Uint64 value); |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
131 |
|
22f39393668a
Fixed build problem with SDL_string.c
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
132 |
| 0 | 133 /* Ends C function definitions when using C++ */ |
| 134 #ifdef __cplusplus | |
| 135 } | |
| 136 #endif | |
| 137 #include "close_code.h" | |
| 138 | |
|
1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
139 #endif /* _SDL_rwops_h */ |