SDL_IOStreamInterface

The function pointers that drive an SDL_IOStream.

Applications can provide this struct to SDL_OpenIO() to create their own implementation of SDL_IOStream. This is not necessarily required, as SDL already offers several common types of I/O streams, via functions like SDL_IOFromFile() and SDL_IOFromMem().

This structure should be initialized using SDL_INIT_INTERFACE()

extern (C) nothrow @nogc

struct SDL_IOStreamInterface {

Uint32 version_;

Sint64 function(void* userdata) size;

Sint64 function(void* userdata, Sint64 offset, SDL_IOWhence whence) seek;

size_t function(void* userdata, void* ptr, size_t size, SDL_IOStatus* status) read;

size_t function(void* userdata, const(void)* ptr, size_t size, SDL_IOStatus* status) write;

bool function(void* userdata, SDL_IOStatus* status) flush;

bool function(void* userdata) close;

}

Members

Variables

close bool function(void* userdata) close;: Close and free any allocated resources.
flush bool function(void* userdata, SDL_IOStatus* status) flush;: If the stream is buffering, make sure the data is written out.
read size_t function(void* userdata, void* ptr, size_t size, SDL_IOStatus* status) read;: Read up to size bytes from the data stream to the area pointed at by ptr.
seek Sint64 function(void* userdata, Sint64 offset, SDL_IOWhence whence) seek;: Seek to offset relative to whence, one of stdio's whence values: SDL_IO_SEEK_SET, SDL_IO_SEEK_CUR, SDL_IO_SEEK_END
size Sint64 function(void* userdata) size;: Return the number of bytes in this SDL_IOStream
version_ Uint32 version_;: Undocumented in source.
write size_t function(void* userdata, const(void)* ptr, size_t size, SDL_IOStatus* status) write;: Write exactly size bytes from the area pointed at by ptr to data stream.

SDL_IOStreamInterface

Members

Variables

See Also

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