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133 lines
4.0 KiB
C
133 lines
4.0 KiB
C
// license:BSD-3-Clause
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// copyright-holders:Aaron Giles
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/***************************************************************************
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corefile.h
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Core file I/O interface functions and definitions.
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***************************************************************************/
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#pragma once
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#ifndef __COREFILE_H__
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#define __COREFILE_H__
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#include <stdarg.h>
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#include "osdcore.h"
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#include "astring.h"
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#include "coretmpl.h"
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/***************************************************************************
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ADDITIONAL OPEN FLAGS
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***************************************************************************/
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#define OPEN_FLAG_NO_BOM 0x0100 /* don't output BOM */
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#define FCOMPRESS_NONE 0 /* no compression */
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#define FCOMPRESS_MIN 1 /* minimal compression */
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#define FCOMPRESS_MEDIUM 6 /* standard compression */
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#define FCOMPRESS_MAX 9 /* maximum compression */
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/***************************************************************************
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TYPE DEFINITIONS
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***************************************************************************/
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#define core_file zfile
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//struct core_file;
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/***************************************************************************
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FUNCTION PROTOTYPES
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***************************************************************************/
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/* ----- file open/close ----- */
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/* open a file with the specified filename */
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file_error core_fopen(const TCHAR *filename, UINT32 openflags, core_file **file);
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/* open a RAM-based "file" using the given data and length (read-only) */
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file_error core_fopen_ram(const void *data, size_t length, UINT32 openflags, core_file **file);
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/* open a RAM-based "file" using the given data and length (read-only), copying the data */
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file_error core_fopen_ram_copy(const void *data, size_t length, UINT32 openflags, core_file **file);
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/* close an open file */
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void core_fclose(core_file *file);
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/* enable/disable streaming file compression via zlib; level is 0 to disable compression, or up to 9 for max compression */
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file_error core_fcompress(core_file *file, int level);
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/* ----- file positioning ----- */
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/* adjust the file pointer within the file */
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int core_fseek(core_file *file, INT64 offset, int whence);
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/* return the current file pointer */
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UINT64 core_ftell(core_file *file);
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/* return true if we are at the EOF */
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int core_feof(core_file *file);
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/* return the total size of the file */
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UINT64 core_fsize(core_file *file);
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/* ----- file read ----- */
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/* standard binary read from a file */
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UINT32 core_fread(core_file *file, void *buffer, UINT32 length);
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/* read one character from the file */
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int core_fgetc(core_file *file);
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/* put back one character from the file */
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int core_ungetc(int c, core_file *file);
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/* read a full line of text from the file */
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char *core_fgets(char *s, int n, core_file *file);
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/* get a pointer to a buffer that holds the full file data in RAM */
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/* this function may cause the full file data to be read */
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const void *core_fbuffer(core_file *file);
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/* open a file with the specified filename, read it into memory, and return a pointer */
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file_error core_fload(const TCHAR *filename, void **data, UINT32 *length);
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file_error core_fload(const TCHAR *filename, dynamic_buffer &data);
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/* ----- file write ----- */
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/* standard binary write to a file */
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UINT32 core_fwrite(core_file *file, const void *buffer, UINT32 length);
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/* write a line of text to the file */
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int core_fputs(core_file *f, const TCHAR *s);
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/* printf-style text write to a file */
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int core_vfprintf(core_file *f, const TCHAR *fmt, va_list va);
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int CLIB_DECL core_fprintf(core_file *f, const TCHAR *fmt, ...);
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/* ----- filename utilities ----- */
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/* extract the base part of a filename (remove extensions and paths) */
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astring &core_filename_extract_base(astring &result, const TCHAR *name, bool strip_extension = false);
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/* true if the given filename ends with a particular extension */
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int core_filename_ends_with(const TCHAR *filename, const TCHAR *extension);
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#endif /* __COREFILE_H__ */
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