From 7d871ab87d45e535d1512a5834b627cbbce2e66c Mon Sep 17 00:00:00 2001 From: jdgleaver Date: Fri, 17 Sep 2021 10:37:49 +0100 Subject: Replace direct direct file access with VFS routines --- libretro-common/include/vfs/vfs.h | 111 +++++++++++++++++++++++ libretro-common/include/vfs/vfs_implementation.h | 76 ++++++++++++++++ 2 files changed, 187 insertions(+) create mode 100644 libretro-common/include/vfs/vfs.h create mode 100644 libretro-common/include/vfs/vfs_implementation.h (limited to 'libretro-common/include/vfs') diff --git a/libretro-common/include/vfs/vfs.h b/libretro-common/include/vfs/vfs.h new file mode 100644 index 0000000..5366f33 --- /dev/null +++ b/libretro-common/include/vfs/vfs.h @@ -0,0 +1,111 @@ +/* Copyright (C) 2010-2020 The RetroArch team +* +* --------------------------------------------------------------------------------------- +* The following license statement only applies to this file (vfs_implementation.h). +* --------------------------------------------------------------------------------------- +* +* Permission is hereby granted, free of charge, +* to any person obtaining a copy of this software and associated documentation files (the "Software"), +* to deal in the Software without restriction, including without limitation the rights to +* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, +* and to permit persons to whom the Software is furnished to do so, subject to the following conditions: +* +* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, +* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +*/ + +#ifndef __LIBRETRO_SDK_VFS_H +#define __LIBRETRO_SDK_VFS_H + +#include +#include + +#ifdef RARCH_INTERNAL +#ifndef VFS_FRONTEND +#define VFS_FRONTEND +#endif +#endif + +RETRO_BEGIN_DECLS + +#ifdef _WIN32 +typedef void* HANDLE; +#endif + +#ifdef HAVE_CDROM +typedef struct +{ + int64_t byte_pos; + char *cue_buf; + size_t cue_len; + unsigned cur_lba; + unsigned last_frame_lba; + unsigned char cur_min; + unsigned char cur_sec; + unsigned char cur_frame; + unsigned char cur_track; + unsigned char last_frame[2352]; + char drive; + bool last_frame_valid; +} vfs_cdrom_t; +#endif + +enum vfs_scheme +{ + VFS_SCHEME_NONE = 0, + VFS_SCHEME_CDROM +}; + +#ifndef __WINRT__ +#ifdef VFS_FRONTEND +struct retro_vfs_file_handle +#else +struct libretro_vfs_implementation_file +#endif +{ +#ifdef HAVE_CDROM + vfs_cdrom_t cdrom; /* int64_t alignment */ +#endif + int64_t size; + uint64_t mappos; + uint64_t mapsize; + FILE *fp; +#ifdef _WIN32 + HANDLE fh; +#endif + char *buf; + char* orig_path; + uint8_t *mapped; + int fd; + unsigned hints; + enum vfs_scheme scheme; +}; +#endif + +/* Replace the following symbol with something appropriate + * to signify the file is being compiled for a front end instead of a core. + * This allows the same code to act as reference implementation + * for VFS and as fallbacks for when the front end does not provide VFS functionality. + */ + +#ifdef VFS_FRONTEND +typedef struct retro_vfs_file_handle libretro_vfs_implementation_file; +#else +typedef struct libretro_vfs_implementation_file libretro_vfs_implementation_file; +#endif + +#ifdef VFS_FRONTEND +typedef struct retro_vfs_dir_handle libretro_vfs_implementation_dir; +#else +typedef struct libretro_vfs_implementation_dir libretro_vfs_implementation_dir; +#endif + +RETRO_END_DECLS + +#endif diff --git a/libretro-common/include/vfs/vfs_implementation.h b/libretro-common/include/vfs/vfs_implementation.h new file mode 100644 index 0000000..c7d6bb0 --- /dev/null +++ b/libretro-common/include/vfs/vfs_implementation.h @@ -0,0 +1,76 @@ +/* Copyright (C) 2010-2020 The RetroArch team +* +* --------------------------------------------------------------------------------------- +* The following license statement only applies to this file (vfs_implementation.h). +* --------------------------------------------------------------------------------------- +* +* Permission is hereby granted, free of charge, +* to any person obtaining a copy of this software and associated documentation files (the "Software"), +* to deal in the Software without restriction, including without limitation the rights to +* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, +* and to permit persons to whom the Software is furnished to do so, subject to the following conditions: +* +* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, +* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +*/ + +#ifndef __LIBRETRO_SDK_VFS_IMPLEMENTATION_H +#define __LIBRETRO_SDK_VFS_IMPLEMENTATION_H + +#include +#include +#include +#include +#include + +RETRO_BEGIN_DECLS + +libretro_vfs_implementation_file *retro_vfs_file_open_impl(const char *path, unsigned mode, unsigned hints); + +int retro_vfs_file_close_impl(libretro_vfs_implementation_file *stream); + +int retro_vfs_file_error_impl(libretro_vfs_implementation_file *stream); + +int64_t retro_vfs_file_size_impl(libretro_vfs_implementation_file *stream); + +int64_t retro_vfs_file_truncate_impl(libretro_vfs_implementation_file *stream, int64_t length); + +int64_t retro_vfs_file_tell_impl(libretro_vfs_implementation_file *stream); + +int64_t retro_vfs_file_seek_impl(libretro_vfs_implementation_file *stream, int64_t offset, int seek_position); + +int64_t retro_vfs_file_read_impl(libretro_vfs_implementation_file *stream, void *s, uint64_t len); + +int64_t retro_vfs_file_write_impl(libretro_vfs_implementation_file *stream, const void *s, uint64_t len); + +int retro_vfs_file_flush_impl(libretro_vfs_implementation_file *stream); + +int retro_vfs_file_remove_impl(const char *path); + +int retro_vfs_file_rename_impl(const char *old_path, const char *new_path); + +const char *retro_vfs_file_get_path_impl(libretro_vfs_implementation_file *stream); + +int retro_vfs_stat_impl(const char *path, int32_t *size); + +int retro_vfs_mkdir_impl(const char *dir); + +libretro_vfs_implementation_dir *retro_vfs_opendir_impl(const char *dir, bool include_hidden); + +bool retro_vfs_readdir_impl(libretro_vfs_implementation_dir *dirstream); + +const char *retro_vfs_dirent_get_name_impl(libretro_vfs_implementation_dir *dirstream); + +bool retro_vfs_dirent_is_dir_impl(libretro_vfs_implementation_dir *dirstream); + +int retro_vfs_closedir_impl(libretro_vfs_implementation_dir *dirstream); + +RETRO_END_DECLS + +#endif -- cgit v1.2.3