/usr/include/SDL/SDL_rwops.h is in libsdl1.2-dev 1.2.15+dfsg2-0.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | /*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_rwops.h
* This file provides a general interface for SDL to read and write
* data sources. It can easily be extended to files, memory, etc.
*/
#ifndef _SDL_rwops_h
#define _SDL_rwops_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** This is the read/write operation structure -- very basic */
typedef struct SDL_RWops {
/** Seek to 'offset' relative to whence, one of stdio's whence values:
* SEEK_SET, SEEK_CUR, SEEK_END
* Returns the final offset in the data source.
*/
int (SDLCALL *seek)(struct SDL_RWops *context, int offset, int whence);
/** Read up to 'maxnum' objects each of size 'size' from the data
* source to the area pointed at by 'ptr'.
* Returns the number of objects read, or -1 if the read failed.
*/
int (SDLCALL *read)(struct SDL_RWops *context, void *ptr, int size, int maxnum);
/** Write exactly 'num' objects each of size 'objsize' from the area
* pointed at by 'ptr' to data source.
* Returns 'num', or -1 if the write failed.
*/
int (SDLCALL *write)(struct SDL_RWops *context, const void *ptr, int size, int num);
/** Close and free an allocated SDL_FSops structure */
int (SDLCALL *close)(struct SDL_RWops *context);
Uint32 type;
union {
#if defined(__WIN32__) && !defined(__SYMBIAN32__)
struct {
int append;
void *h;
struct {
void *data;
int size;
int left;
} buffer;
} win32io;
#endif
#ifdef HAVE_STDIO_H
struct {
int autoclose;
FILE *fp;
} stdio;
#endif
struct {
Uint8 *base;
Uint8 *here;
Uint8 *stop;
} mem;
struct {
void *data1;
} unknown;
} hidden;
} SDL_RWops;
/** @name Functions to create SDL_RWops structures from various data sources */
/*@{*/
extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFile(const char *file, const char *mode);
#ifdef HAVE_STDIO_H
extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFP(FILE *fp, int autoclose);
#endif
extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromMem(void *mem, int size);
extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromConstMem(const void *mem, int size);
extern DECLSPEC SDL_RWops * SDLCALL SDL_AllocRW(void);
extern DECLSPEC void SDLCALL SDL_FreeRW(SDL_RWops *area);
/*@}*/
/** @name Seek Reference Points */
/*@{*/
#define RW_SEEK_SET 0 /**< Seek from the beginning of data */
#define RW_SEEK_CUR 1 /**< Seek relative to current read point */
#define RW_SEEK_END 2 /**< Seek relative to the end of data */
/*@}*/
/** @name Macros to easily read and write from an SDL_RWops structure */
/*@{*/
#define SDL_RWseek(ctx, offset, whence) (ctx)->seek(ctx, offset, whence)
#define SDL_RWtell(ctx) (ctx)->seek(ctx, 0, RW_SEEK_CUR)
#define SDL_RWread(ctx, ptr, size, n) (ctx)->read(ctx, ptr, size, n)
#define SDL_RWwrite(ctx, ptr, size, n) (ctx)->write(ctx, ptr, size, n)
#define SDL_RWclose(ctx) (ctx)->close(ctx)
/*@}*/
/** @name Read an item of the specified endianness and return in native format */
/*@{*/
extern DECLSPEC Uint16 SDLCALL SDL_ReadLE16(SDL_RWops *src);
extern DECLSPEC Uint16 SDLCALL SDL_ReadBE16(SDL_RWops *src);
extern DECLSPEC Uint32 SDLCALL SDL_ReadLE32(SDL_RWops *src);
extern DECLSPEC Uint32 SDLCALL SDL_ReadBE32(SDL_RWops *src);
extern DECLSPEC Uint64 SDLCALL SDL_ReadLE64(SDL_RWops *src);
extern DECLSPEC Uint64 SDLCALL SDL_ReadBE64(SDL_RWops *src);
/*@}*/
/** @name Write an item of native format to the specified endianness */
/*@{*/
extern DECLSPEC int SDLCALL SDL_WriteLE16(SDL_RWops *dst, Uint16 value);
extern DECLSPEC int SDLCALL SDL_WriteBE16(SDL_RWops *dst, Uint16 value);
extern DECLSPEC int SDLCALL SDL_WriteLE32(SDL_RWops *dst, Uint32 value);
extern DECLSPEC int SDLCALL SDL_WriteBE32(SDL_RWops *dst, Uint32 value);
extern DECLSPEC int SDLCALL SDL_WriteLE64(SDL_RWops *dst, Uint64 value);
extern DECLSPEC int SDLCALL SDL_WriteBE64(SDL_RWops *dst, Uint64 value);
/*@}*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_rwops_h */
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