// license:BSD-3-Clause // copyright-holders:Nathan Woods /*************************************************************************** stream.h Code for implementing Imgtool streams ***************************************************************************/ #ifndef STREAM_H #define STREAM_H #include "imgterrs.h" #include "corefile.h" struct imgtool_stream; imgtool_stream *stream_open(const char *fname, int read_or_write); /* similar params to mame_fopen */ imgtool_stream *stream_open_write_stream(int filesize); imgtool_stream *stream_open_mem(void *buf, size_t sz); void stream_close(imgtool_stream *stream); core_file *stream_core_file(imgtool_stream *stream); UINT32 stream_read(imgtool_stream *stream, void *buf, UINT32 sz); UINT32 stream_write(imgtool_stream *stream, const void *buf, UINT32 sz); UINT64 stream_size(imgtool_stream *stream); int stream_seek(imgtool_stream *stream, INT64 pos, int where); UINT64 stream_tell(imgtool_stream *stream); void *stream_getptr(imgtool_stream *stream); UINT32 stream_putc(imgtool_stream *stream, char c); UINT32 stream_puts(imgtool_stream *stream, const char *s); UINT32 stream_printf(imgtool_stream *stream, const char *fmt, ...) ATTR_PRINTF(2,3); /* Transfers sz bytes from source to dest */ UINT64 stream_transfer(imgtool_stream *dest, imgtool_stream *source, UINT64 sz); UINT64 stream_transfer_all(imgtool_stream *dest, imgtool_stream *source); /* Fills sz bytes with b */ UINT64 stream_fill(imgtool_stream *f, unsigned char b, UINT64 sz); /* Returns the CRC of a file */ int stream_crc(imgtool_stream *f, unsigned long *result); int file_crc(const char *fname, unsigned long *result); /* Returns whether a stream is read only or not */ int stream_isreadonly(imgtool_stream *f); #endif /* STREAM_H */