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Classes | |
struct | SDL_RWops |
Macros | |
#define | SDL_RWOPS_UNKNOWN 0U |
#define | SDL_RWOPS_WINFILE 1U |
#define | SDL_RWOPS_STDFILE 2U |
#define | SDL_RWOPS_JNIFILE 3U |
#define | SDL_RWOPS_MEMORY 4U |
#define | SDL_RWOPS_MEMORY_RO 5U |
#define | RW_SEEK_SET 0 |
#define | RW_SEEK_CUR 1 |
#define | RW_SEEK_END 2 |
Typedefs | |
typedef struct SDL_RWops | SDL_RWops |
Functions | |
DECLSPEC SDL_RWops *SDLCALL | SDL_AllocRW (void) |
DECLSPEC void SDLCALL | SDL_FreeRW (SDL_RWops *area) |
DECLSPEC Sint64 SDLCALL | SDL_RWsize (SDL_RWops *context) |
DECLSPEC Sint64 SDLCALL | SDL_RWseek (SDL_RWops *context, Sint64 offset, int whence) |
DECLSPEC Sint64 SDLCALL | SDL_RWtell (SDL_RWops *context) |
DECLSPEC size_t SDLCALL | SDL_RWread (SDL_RWops *context, void *ptr, size_t size, size_t maxnum) |
DECLSPEC size_t SDLCALL | SDL_RWwrite (SDL_RWops *context, const void *ptr, size_t size, size_t num) |
DECLSPEC int SDLCALL | SDL_RWclose (SDL_RWops *context) |
DECLSPEC void *SDLCALL | SDL_LoadFile_RW (SDL_RWops *src, size_t *datasize, int freesrc) |
DECLSPEC void *SDLCALL | SDL_LoadFile (const char *file, size_t *datasize) |
RWFrom functions | |
Functions to create SDL_RWops structures from various data streams. | |
DECLSPEC SDL_RWops *SDLCALL | SDL_RWFromFile (const char *file, const char *mode) |
DECLSPEC SDL_RWops *SDLCALL | SDL_RWFromFP (FILE *fp, SDL_bool autoclose) |
DECLSPEC SDL_RWops *SDLCALL | SDL_RWFromMem (void *mem, int size) |
DECLSPEC SDL_RWops *SDLCALL | SDL_RWFromConstMem (const void *mem, int size) |
Read endian functions | |
Read an item of the specified endianness and return in native format. | |
DECLSPEC Uint8 SDLCALL | SDL_ReadU8 (SDL_RWops *src) |
DECLSPEC Uint16 SDLCALL | SDL_ReadLE16 (SDL_RWops *src) |
DECLSPEC Uint16 SDLCALL | SDL_ReadBE16 (SDL_RWops *src) |
DECLSPEC Uint32 SDLCALL | SDL_ReadLE32 (SDL_RWops *src) |
DECLSPEC Uint32 SDLCALL | SDL_ReadBE32 (SDL_RWops *src) |
DECLSPEC Uint64 SDLCALL | SDL_ReadLE64 (SDL_RWops *src) |
DECLSPEC Uint64 SDLCALL | SDL_ReadBE64 (SDL_RWops *src) |
Write endian functions | |
Write an item of native format to the specified endianness. | |
DECLSPEC size_t SDLCALL | SDL_WriteU8 (SDL_RWops *dst, Uint8 value) |
DECLSPEC size_t SDLCALL | SDL_WriteLE16 (SDL_RWops *dst, Uint16 value) |
DECLSPEC size_t SDLCALL | SDL_WriteBE16 (SDL_RWops *dst, Uint16 value) |
DECLSPEC size_t SDLCALL | SDL_WriteLE32 (SDL_RWops *dst, Uint32 value) |
DECLSPEC size_t SDLCALL | SDL_WriteBE32 (SDL_RWops *dst, Uint32 value) |
DECLSPEC size_t SDLCALL | SDL_WriteLE64 (SDL_RWops *dst, Uint64 value) |
DECLSPEC size_t SDLCALL | SDL_WriteBE64 (SDL_RWops *dst, Uint64 value) |
This file provides a general interface for SDL to read and write data streams. It can easily be extended to files, memory, etc.
#define RW_SEEK_CUR 1 |
Seek relative to current read point
#define RW_SEEK_END 2 |
Seek relative to the end of data
#define RW_SEEK_SET 0 |
Seek from the beginning of data
#define SDL_RWOPS_JNIFILE 3U |
Android asset
#define SDL_RWOPS_MEMORY 4U |
Memory stream
#define SDL_RWOPS_MEMORY_RO 5U |
Read-Only memory stream
#define SDL_RWOPS_STDFILE 2U |
Stdio file
#define SDL_RWOPS_UNKNOWN 0U |
Unknown stream type
#define SDL_RWOPS_WINFILE 1U |
Win32 file
DECLSPEC void* SDLCALL SDL_LoadFile | ( | const char * | file, |
size_t * | datasize | ||
) |
Load an entire file.
The data is allocated with a zero byte at the end (null terminated)
If datasize
is not NULL, it is filled with the size of the data read.
If freesrc
is non-zero, the stream will be closed after being read.
The data should be freed with SDL_free().
DECLSPEC void* SDLCALL SDL_LoadFile_RW | ( | SDL_RWops * | src, |
size_t * | datasize, | ||
int | freesrc | ||
) |
Load all the data from an SDL data stream.
The data is allocated with a zero byte at the end (null terminated)
If datasize
is not NULL, it is filled with the size of the data read.
If freesrc
is non-zero, the stream will be closed after being read.
The data should be freed with SDL_free().
DECLSPEC int SDLCALL SDL_RWclose | ( | SDL_RWops * | context | ) |
Close and free an allocated SDL_RWops structure.
DECLSPEC size_t SDLCALL SDL_RWread | ( | SDL_RWops * | context, |
void * | ptr, | ||
size_t | size, | ||
size_t | maxnum | ||
) |
Read up to maxnum
objects each of size size
from the data stream to the area pointed at by ptr
.
DECLSPEC Sint64 SDLCALL SDL_RWseek | ( | SDL_RWops * | context, |
Sint64 | offset, | ||
int | whence | ||
) |
Seek to offset
relative to whence
, one of stdio's whence values: RW_SEEK_SET, RW_SEEK_CUR, RW_SEEK_END
DECLSPEC Sint64 SDLCALL SDL_RWsize | ( | SDL_RWops * | context | ) |
Return the size of the file in this rwops, or -1 if unknown
DECLSPEC Sint64 SDLCALL SDL_RWtell | ( | SDL_RWops * | context | ) |
Return the current offset in the data stream, or -1 on error.
DECLSPEC size_t SDLCALL SDL_RWwrite | ( | SDL_RWops * | context, |
const void * | ptr, | ||
size_t | size, | ||
size_t | num | ||
) |
Write exactly num
objects each of size size
from the area pointed at by ptr
to data stream.