diff --git a/Makefile b/Makefile
index f043a85..ecefd12 100644
--- a/Makefile
+++ b/Makefile
@@ -475,10 +475,8 @@ endif
 
 # Add -DTRACE_INSTRUCTIONS to trace instruction execution
 ifeq ($(DEBUG), 1)
-	OPTIMIZE_SAFE := -O0 -g
 	OPTIMIZE      := -O0 -g
 else
-	OPTIMIZE_SAFE := -O2 -DNDEBUG
 	OPTIMIZE      := -O3 -DNDEBUG
 endif
 
@@ -542,7 +540,7 @@ else
 endif
 
 cpu_threaded.o: cpu_threaded.c
-	$(CC) $(CFLAGS) -Wno-unused-variable -Wno-unused-label $(OPTIMIZE_SAFE) $(INCDIRS) -c -o $@ $<
+	$(CC) $(INCFLAGS) $(CFLAGS) $(OPTIMIZE) -Wno-unused-variable -Wno-unused-label -c  -o $@ $<
 
 %.o: %.S
 	$(CC) $(ASFLAGS) $(CFLAGS) $(OPTIMIZE) -c -o $@ $<
diff --git a/Makefile.common b/Makefile.common
index 85e1948..d034a52 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -1,17 +1,29 @@
-INCFLAGS   := -I$(CORE_DIR)/libretro -I$(CORE_DIR)/src
+
+LIBRETRO_COMM_DIR := $(CORE_DIR)/libretro/libretro-common/
+INCFLAGS   := -I$(CORE_DIR)/libretro -I$(LIBRETRO_COMM_DIR)/include  -I$(CORE_DIR)/
 
 SOURCES_ASM := $(CORE_DIR)/bios_data.S
 
 SOURCES_C := $(CORE_DIR)/main.c \
-				 $(CORE_DIR)/cpu.c \
-				 $(CORE_DIR)/gba_memory.c \
-				 $(CORE_DIR)/savestate.c \
-				 $(CORE_DIR)/video.c \
-				 $(CORE_DIR)/input.c \
-				 $(CORE_DIR)/sound.c \
-				 $(CORE_DIR)/cheats.c \
-				 $(CORE_DIR)/libretro.c \
-				 $(CORE_DIR)/gba_cc_lut.c
+             $(CORE_DIR)/cpu.c \
+             $(CORE_DIR)/gba_memory.c \
+             $(CORE_DIR)/savestate.c \
+             $(CORE_DIR)/video.c \
+             $(CORE_DIR)/input.c \
+             $(CORE_DIR)/sound.c \
+             $(CORE_DIR)/cheats.c \
+             $(CORE_DIR)/libretro/libretro.c \
+             $(CORE_DIR)/gba_cc_lut.c \
+             $(LIBRETRO_COMM_DIR)/compat/compat_posix_string.c \
+             $(LIBRETRO_COMM_DIR)/compat/compat_strl.c \
+             $(LIBRETRO_COMM_DIR)/compat/fopen_utf8.c \
+             $(LIBRETRO_COMM_DIR)/encodings/encoding_utf.c \
+             $(LIBRETRO_COMM_DIR)/file/file_path.c \
+             $(LIBRETRO_COMM_DIR)/file/file_path_io.c \
+             $(LIBRETRO_COMM_DIR)/streams/file_stream.c \
+             $(LIBRETRO_COMM_DIR)/string/stdstring.c \
+             $(LIBRETRO_COMM_DIR)/time/rtime.c \
+             $(LIBRETRO_COMM_DIR)/vfs/vfs_implementation.c
 
 ifeq ($(HAVE_DYNAREC), 1)
 SOURCES_C += $(CORE_DIR)/cpu_threaded.c
@@ -43,4 +55,3 @@ ifeq ($(HAVE_MMAP_WIN32),1)
 SOURCES_C += $(CORE_DIR)/memmap_win32.c
 endif
 
-INCFLAGS := -I$(CORE_DIR)
diff --git a/cpu_threaded.c b/cpu_threaded.c
index 7d4af8b..77a8cbe 100644
--- a/cpu_threaded.c
+++ b/cpu_threaded.c
@@ -3453,19 +3453,3 @@ void init_caches(void)
   flush_translation_cache_ram();
 }
 
-#define cache_dump_prefix ""
-
-void dump_translation_cache(void)
-{
-  FILE *fd = fopen(cache_dump_prefix "ram_cache.bin", "wb");
-  fwrite(ram_translation_cache, 1,
-   ram_translation_ptr - ram_translation_cache, fd);
-  fclose(fd);
-
-  fd = fopen(cache_dump_prefix "rom_cache.bin", "wb");
-  fwrite(rom_translation_cache, 1,
-   rom_translation_ptr - rom_translation_cache, fd);
-  fclose(fd);
-}
-
-
diff --git a/gba_memory.c b/gba_memory.c
index 824d05f..d4898ec 100644
--- a/gba_memory.c
+++ b/gba_memory.c
@@ -18,6 +18,7 @@
  */
 
 #include "common.h"
+#include "streams/file_stream.h"
 
 /* Sound */
 #define gbc_sound_tone_control_low(channel, regn)                             \
@@ -342,7 +343,7 @@ u32 gamepak_sticky_bit[1024/32];
 // This is global so that it can be kept open for large ROMs to swap
 // pages from, so there's no slowdown with opening and closing the file
 // a lot.
-FILE *gamepak_file_large = NULL;
+RFILE *gamepak_file_large = NULL;
 
 // Writes to these respective locations should trigger an update
 // so the related subsystem may react to it.
@@ -1999,14 +2000,15 @@ char backup_filename[512];
 
 u32 load_backup(char *name)
 {
-  FILE *fd = fopen(name, "rb");
+  RFILE *fd = filestream_open(name, RETRO_VFS_FILE_ACCESS_READ,
+                              RETRO_VFS_FILE_ACCESS_HINT_NONE);
 
   if(fd)
   {
-    u32 backup_size = file_length(fd);
+    int64_t backup_size = filestream_get_size(fd);
 
-    fread(gamepak_backup, 1, backup_size, fd);
-    fclose(fd);
+    filestream_read(fd, gamepak_backup, backup_size);
+    filestream_close(fd);
 
     // The size might give away what kind of backup it is.
     switch(backup_size)
@@ -2052,7 +2054,8 @@ u32 save_backup(char *name)
 {
   if(backup_type != BACKUP_NONE)
   {
-    FILE *fd = fopen(name, "wb");
+    RFILE *fd = filestream_open(name, RETRO_VFS_FILE_ACCESS_WRITE,
+                                RETRO_VFS_FILE_ACCESS_HINT_NONE);
 
     if(fd)
     {
@@ -2085,8 +2088,8 @@ u32 save_backup(char *name)
           break;
       }
 
-      fwrite(gamepak_backup, 1, backup_size, fd);
-      fclose(fd);
+      filestream_write(fd, gamepak_backup, backup_size);
+      filestream_close(fd);
       return 1;
     }
   }
@@ -2232,17 +2235,18 @@ static s32 load_game_config(gamepak_info_t *gpinfo)
   char current_variable[256];
   char current_value[256];
   char config_path[512];
-  FILE *config_file;
+  RFILE *config_file;
 
   sprintf(config_path, "%s" PATH_SEPARATOR "%s", main_path, CONFIG_FILENAME);
 
   printf("config_path is : %s\n", config_path);
 
-  config_file = fopen(config_path, "rb");
+  config_file = filestream_open(config_path, RETRO_VFS_FILE_ACCESS_READ,
+                                RETRO_VFS_FILE_ACCESS_HINT_NONE);
 
   if(config_file)
   {
-    while(fgets(current_line, 256, config_file))
+    while(filestream_gets(config_file, current_line, 256))
     {
       if(parse_config_line(current_line, current_variable, current_value)
        != -1)
@@ -2251,28 +2255,28 @@ static s32 load_game_config(gamepak_info_t *gpinfo)
          strcmp(current_value, gpinfo->gamepak_title))
           continue;
 
-        if(!fgets(current_line, 256, config_file) ||
+        if(!filestream_gets(config_file, current_line, 256) ||
          (parse_config_line(current_line, current_variable,
            current_value) == -1) ||
          strcmp(current_variable, "game_code") ||
          strcmp(current_value, gpinfo->gamepak_code))
           continue;
 
-        if(!fgets(current_line, 256, config_file) ||
+        if(!filestream_gets(config_file, current_line, 256) ||
          (parse_config_line(current_line, current_variable,
            current_value) == -1) ||
          strcmp(current_variable, "vender_code") ||
           strcmp(current_value, gpinfo->gamepak_maker))
           continue;
 
-        while(fgets(current_line, 256, config_file))
+        while(filestream_gets(config_file, current_line, 256))
         {
           if(parse_config_line(current_line, current_variable, current_value)
            != -1)
           {
             if(!strcmp(current_variable, "game_name"))
             {
-              fclose(config_file);
+              filestream_close(config_file);
               return 0;
             }
 
@@ -2299,12 +2303,12 @@ static s32 load_game_config(gamepak_info_t *gpinfo)
           }
         }
 
-        fclose(config_file);
+        filestream_close(config_file);
         return 0;
       }
     }
 
-    fclose(config_file);
+    filestream_close(config_file);
   }
 
   printf("game config missing\n");
@@ -2969,8 +2973,8 @@ u8 *load_gamepak_page(u32 physical_index)
   // Fill in the entry
   gamepak_blk_queue[entry].phy_rom = physical_index;
 
-  fseek(gamepak_file_large, physical_index * (32 * 1024), SEEK_SET);
-  fread(swap_location, 1, (32 * 1024), gamepak_file_large);
+  filestream_seek(gamepak_file_large, physical_index * (32 * 1024), SEEK_SET);
+  filestream_read(gamepak_file_large, swap_location, (32 * 1024));
 
   // Map it to the read handlers now
   map_rom_entry(read, physical_index, swap_location, gamepak_size >> 15);
@@ -3063,7 +3067,7 @@ void memory_term(void)
 {
   if (gamepak_file_large)
   {
-    fclose(gamepak_file_large);
+    filestream_close(gamepak_file_large);
     gamepak_file_large = NULL;
   }
 
@@ -3202,11 +3206,12 @@ unsigned memory_write_savestate(u8 *dst)
 static s32 load_gamepak_raw(const char *name)
 {
   unsigned i, j;
-  gamepak_file_large = fopen(name, "rb");
+  gamepak_file_large = filestream_open(name, RETRO_VFS_FILE_ACCESS_READ,
+                                       RETRO_VFS_FILE_ACCESS_HINT_NONE);
   if(gamepak_file_large)
   {
     // Round size to 32KB pages
-    gamepak_size = file_length(gamepak_file_large);
+    gamepak_size = (u32)filestream_get_size(gamepak_file_large);
     gamepak_size = (gamepak_size + 0x7FFF) & ~0x7FFF;
 
     // Load stuff in 1MB chunks
@@ -3222,7 +3227,7 @@ static s32 load_gamepak_raw(const char *name)
     for (i = 0; i < ldblks; i++)
     {
       // Load 1MB chunk and map it
-      fread(gamepak_buffers[i], 1, 1024*1024, gamepak_file_large);
+      filestream_read(gamepak_file_large, gamepak_buffers[i], 1024*1024);
       for (j = 0; j < 32 && i*32 + j < rom_blocks; j++)
       {
         u32 phyn = i*32 + j;
@@ -3286,13 +3291,14 @@ u32 load_gamepak(const struct retro_game_info* info, const char *name)
 
 s32 load_bios(char *name)
 {
-  FILE *fd = fopen(name, "rb");
+  RFILE *fd = filestream_open(name, RETRO_VFS_FILE_ACCESS_READ,
+                              RETRO_VFS_FILE_ACCESS_HINT_NONE);
 
   if(!fd)
     return -1;
 
-  fread(bios_rom, 1, 0x4000, fd);
-  fclose(fd);
+  filestream_read(fd, bios_rom, 0x4000);
+  filestream_close(fd);
   return 0;
 }
 
diff --git a/libretro/libretro-common/compat/compat_posix_string.c b/libretro/libretro-common/compat/compat_posix_string.c
new file mode 100644
index 0000000..6a2f07e
--- /dev/null
+++ b/libretro/libretro-common/compat/compat_posix_string.c
@@ -0,0 +1,104 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (compat_posix_string.c).
+ * ---------------------------------------------------------------------------------------
+ *
+ * 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.
+ */
+
+#include <ctype.h>
+
+#include <compat/posix_string.h>
+
+#ifdef _WIN32
+
+#undef strcasecmp
+#undef strdup
+#undef isblank
+#undef strtok_r
+#include <ctype.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <compat/strl.h>
+
+#include <string.h>
+
+int retro_strcasecmp__(const char *a, const char *b)
+{
+   while (*a && *b)
+   {
+      int a_ = tolower(*a);
+      int b_ = tolower(*b);
+
+      if (a_ != b_)
+         return a_ - b_;
+
+      a++;
+      b++;
+   }
+
+   return tolower(*a) - tolower(*b);
+}
+
+char *retro_strdup__(const char *orig)
+{
+   size_t len = strlen(orig) + 1;
+   char *ret  = (char*)malloc(len);
+   if (!ret)
+      return NULL;
+
+   strlcpy(ret, orig, len);
+   return ret;
+}
+
+int retro_isblank__(int c)
+{
+   return (c == ' ') || (c == '\t');
+}
+
+char *retro_strtok_r__(char *str, const char *delim, char **saveptr)
+{
+   char *first = NULL;
+   if (!saveptr || !delim)
+      return NULL;
+
+   if (str)
+      *saveptr = str;
+
+   do
+   {
+      char *ptr = NULL;
+      first = *saveptr;
+      while (*first && strchr(delim, *first))
+         *first++ = '\0';
+
+      if (*first == '\0')
+         return NULL;
+
+      ptr = first + 1;
+
+      while (*ptr && !strchr(delim, *ptr))
+         ptr++;
+
+      *saveptr = ptr + (*ptr ? 1 : 0);
+      *ptr     = '\0';
+   } while (strlen(first) == 0);
+
+   return first;
+}
+
+#endif
diff --git a/libretro/libretro-common/compat/compat_strcasestr.c b/libretro/libretro-common/compat/compat_strcasestr.c
new file mode 100644
index 0000000..4129dab
--- /dev/null
+++ b/libretro/libretro-common/compat/compat_strcasestr.c
@@ -0,0 +1,58 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (compat_strcasestr.c).
+ * ---------------------------------------------------------------------------------------
+ *
+ * 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.
+ */
+
+#include <ctype.h>
+
+#include <compat/strcasestr.h>
+
+/* Pretty much strncasecmp. */
+static int casencmp(const char *a, const char *b, size_t n)
+{
+   size_t i;
+
+   for (i = 0; i < n; i++)
+   {
+      int a_lower = tolower(a[i]);
+      int b_lower = tolower(b[i]);
+      if (a_lower != b_lower)
+         return a_lower - b_lower;
+   }
+
+   return 0;
+}
+
+char *strcasestr_retro__(const char *haystack, const char *needle)
+{
+   size_t i, search_off;
+   size_t hay_len    = strlen(haystack);
+   size_t needle_len = strlen(needle);
+
+   if (needle_len > hay_len)
+      return NULL;
+
+   search_off = hay_len - needle_len;
+   for (i = 0; i <= search_off; i++)
+      if (!casencmp(haystack + i, needle, needle_len))
+         return (char*)haystack + i;
+
+   return NULL;
+}
diff --git a/libretro/libretro-common/compat/compat_strl.c b/libretro/libretro-common/compat/compat_strl.c
new file mode 100644
index 0000000..3172310
--- /dev/null
+++ b/libretro/libretro-common/compat/compat_strl.c
@@ -0,0 +1,69 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (compat_strl.c).
+ * ---------------------------------------------------------------------------------------
+ *
+ * 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.
+ */
+
+#include <stdlib.h>
+#include <ctype.h>
+
+#include <compat/strl.h>
+
+/* Implementation of strlcpy()/strlcat() based on OpenBSD. */
+
+#ifndef __MACH__
+
+size_t strlcpy(char *dest, const char *source, size_t size)
+{
+   size_t src_size = 0;
+   size_t        n = size;
+
+   if (n)
+      while (--n && (*dest++ = *source++)) src_size++;
+
+   if (!n)
+   {
+      if (size) *dest = '\0';
+      while (*source++) src_size++;
+   }
+
+   return src_size;
+}
+
+size_t strlcat(char *dest, const char *source, size_t size)
+{
+   size_t len = strlen(dest);
+
+   dest += len;
+
+   if (len > size)
+      size = 0;
+   else
+      size -= len;
+
+   return len + strlcpy(dest, source, size);
+}
+#endif
+
+char *strldup(const char *s, size_t n)
+{
+   char *dst = (char*)malloc(sizeof(char) * (n + 1));
+   strlcpy(dst, s, n);
+   return dst;
+}
diff --git a/libretro/libretro-common/compat/fopen_utf8.c b/libretro/libretro-common/compat/fopen_utf8.c
new file mode 100644
index 0000000..85abb59
--- /dev/null
+++ b/libretro/libretro-common/compat/fopen_utf8.c
@@ -0,0 +1,63 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (fopen_utf8.c).
+ * ---------------------------------------------------------------------------------------
+ *
+ * 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.
+ */
+
+#include <compat/fopen_utf8.h>
+#include <encodings/utf.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 || defined(_XBOX)
+#ifndef LEGACY_WIN32
+#define LEGACY_WIN32
+#endif
+#endif
+
+#ifdef _WIN32
+#undef fopen
+
+void *fopen_utf8(const char * filename, const char * mode)
+{
+#if defined(LEGACY_WIN32)
+   FILE             *ret = NULL;
+   char * filename_local = utf8_to_local_string_alloc(filename);
+
+   if (!filename_local)
+      return NULL;
+   ret = fopen(filename_local, mode);
+   if (filename_local)
+      free(filename_local);
+   return ret;
+#else
+   wchar_t * filename_w = utf8_to_utf16_string_alloc(filename);
+   wchar_t * mode_w = utf8_to_utf16_string_alloc(mode);
+   FILE* ret = NULL;
+
+   if (filename_w && mode_w)
+      ret = _wfopen(filename_w, mode_w);
+   if (filename_w)
+      free(filename_w);
+   if (mode_w)
+      free(mode_w);
+   return ret;
+#endif
+}
+#endif
diff --git a/libretro/libretro-common/encodings/encoding_utf.c b/libretro/libretro-common/encodings/encoding_utf.c
new file mode 100644
index 0000000..2760824
--- /dev/null
+++ b/libretro/libretro-common/encodings/encoding_utf.c
@@ -0,0 +1,512 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (encoding_utf.c).
+ * ---------------------------------------------------------------------------------------
+ *
+ * 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.
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+
+#include <boolean.h>
+#include <compat/strl.h>
+#include <retro_inline.h>
+
+#include <encodings/utf.h>
+
+#if defined(_WIN32) && !defined(_XBOX)
+#include <windows.h>
+#elif defined(_XBOX)
+#include <xtl.h>
+#endif
+
+#define UTF8_WALKBYTE(string) (*((*(string))++))
+
+static unsigned leading_ones(uint8_t c)
+{
+   unsigned ones = 0;
+   while (c & 0x80)
+   {
+      ones++;
+      c <<= 1;
+   }
+
+   return ones;
+}
+
+/* Simple implementation. Assumes the sequence is
+ * properly synchronized and terminated. */
+
+size_t utf8_conv_utf32(uint32_t *out, size_t out_chars,
+      const char *in, size_t in_size)
+{
+   unsigned i;
+   size_t ret = 0;
+   while (in_size && out_chars)
+   {
+      unsigned extra, shift;
+      uint32_t c;
+      uint8_t first = *in++;
+      unsigned ones = leading_ones(first);
+
+      if (ones > 6 || ones == 1) /* Invalid or desync. */
+         break;
+
+      extra = ones ? ones - 1 : ones;
+      if (1 + extra > in_size) /* Overflow. */
+         break;
+
+      shift = (extra - 1) * 6;
+      c     = (first & ((1 << (7 - ones)) - 1)) << (6 * extra);
+
+      for (i = 0; i < extra; i++, in++, shift -= 6)
+         c |= (*in & 0x3f) << shift;
+
+      *out++ = c;
+      in_size -= 1 + extra;
+      out_chars--;
+      ret++;
+   }
+
+   return ret;
+}
+
+bool utf16_conv_utf8(uint8_t *out, size_t *out_chars,
+     const uint16_t *in, size_t in_size)
+{
+   size_t out_pos            = 0;
+   size_t in_pos             = 0;
+   static const 
+      uint8_t utf8_limits[5] = { 0xC0, 0xE0, 0xF0, 0xF8, 0xFC };
+
+   for (;;)
+   {
+      unsigned num_adds;
+      uint32_t value;
+
+      if (in_pos == in_size)
+      {
+         *out_chars = out_pos;
+         return true;
+      }
+      value = in[in_pos++];
+      if (value < 0x80)
+      {
+         if (out)
+            out[out_pos] = (char)value;
+         out_pos++;
+         continue;
+      }
+
+      if (value >= 0xD800 && value < 0xE000)
+      {
+         uint32_t c2;
+
+         if (value >= 0xDC00 || in_pos == in_size)
+            break;
+         c2 = in[in_pos++];
+         if (c2 < 0xDC00 || c2 >= 0xE000)
+            break;
+         value = (((value - 0xD800) << 10) | (c2 - 0xDC00)) + 0x10000;
+      }
+
+      for (num_adds = 1; num_adds < 5; num_adds++)
+         if (value < (((uint32_t)1) << (num_adds * 5 + 6)))
+            break;
+      if (out)
+         out[out_pos] = (char)(utf8_limits[num_adds - 1]
+               + (value >> (6 * num_adds)));
+      out_pos++;
+      do
+      {
+         num_adds--;
+         if (out)
+            out[out_pos] = (char)(0x80
+                  + ((value >> (6 * num_adds)) & 0x3F));
+         out_pos++;
+      }while (num_adds != 0);
+   }
+
+   *out_chars = out_pos;
+   return false;
+}
+
+/* Acts mostly like strlcpy.
+ *
+ * Copies the given number of UTF-8 characters,
+ * but at most d_len bytes.
+ *
+ * Always NULL terminates.
+ * Does not copy half a character.
+ *
+ * Returns number of bytes. 's' is assumed valid UTF-8.
+ * Use only if 'chars' is considerably less than 'd_len'. */
+size_t utf8cpy(char *d, size_t d_len, const char *s, size_t chars)
+{
+   const uint8_t *sb     = (const uint8_t*)s;
+   const uint8_t *sb_org = sb;
+
+   if (!s)
+      return 0;
+
+   while (*sb && chars-- > 0)
+   {
+      sb++;
+      while ((*sb & 0xC0) == 0x80)
+         sb++;
+   }
+
+   if ((size_t)(sb - sb_org) > d_len-1 /* NUL */)
+   {
+      sb = sb_org + d_len-1;
+      while ((*sb & 0xC0) == 0x80)
+         sb--;
+   }
+
+   memcpy(d, sb_org, sb-sb_org);
+   d[sb-sb_org] = '\0';
+
+   return sb-sb_org;
+}
+
+const char *utf8skip(const char *str, size_t chars)
+{
+   const uint8_t *strb = (const uint8_t*)str;
+
+   if (!chars)
+      return str;
+
+   do
+   {
+      strb++;
+      while ((*strb & 0xC0)==0x80)
+         strb++;
+      chars--;
+   }while (chars);
+
+   return (const char*)strb;
+}
+
+size_t utf8len(const char *string)
+{
+   size_t ret = 0;
+
+   if (!string)
+      return 0;
+
+   while (*string)
+   {
+      if ((*string & 0xC0) != 0x80)
+         ret++;
+      string++;
+   }
+   return ret;
+}
+
+/* Does not validate the input, returns garbage if it's not UTF-8. */
+uint32_t utf8_walk(const char **string)
+{
+   uint8_t first = UTF8_WALKBYTE(string);
+   uint32_t ret  = 0;
+
+   if (first < 128)
+      return first;
+
+   ret    = (ret << 6) | (UTF8_WALKBYTE(string) & 0x3F);
+   if (first >= 0xE0)
+   {
+      ret = (ret << 6) | (UTF8_WALKBYTE(string) & 0x3F);
+      if (first >= 0xF0)
+      {
+         ret = (ret << 6) | (UTF8_WALKBYTE(string) & 0x3F);
+         return ret | (first & 7) << 18;
+      }
+      return ret | (first & 15) << 12;
+   }
+
+   return ret | (first & 31) << 6;
+}
+
+static bool utf16_to_char(uint8_t **utf_data,
+      size_t *dest_len, const uint16_t *in)
+{
+   unsigned len    = 0;
+
+   while (in[len] != '\0')
+      len++;
+
+   utf16_conv_utf8(NULL, dest_len, in, len);
+   *dest_len  += 1;
+   *utf_data   = (uint8_t*)malloc(*dest_len);
+   if (*utf_data == 0)
+      return false;
+
+   return utf16_conv_utf8(*utf_data, dest_len, in, len);
+}
+
+bool utf16_to_char_string(const uint16_t *in, char *s, size_t len)
+{
+   size_t     dest_len  = 0;
+   uint8_t *utf16_data  = NULL;
+   bool            ret  = utf16_to_char(&utf16_data, &dest_len, in);
+
+   if (ret)
+   {
+      utf16_data[dest_len] = 0;
+      strlcpy(s, (const char*)utf16_data, len);
+   }
+
+   free(utf16_data);
+   utf16_data = NULL;
+
+   return ret;
+}
+
+#if defined(_WIN32) && !defined(_XBOX) && !defined(UNICODE)
+/* Returned pointer MUST be freed by the caller if non-NULL. */
+static char *mb_to_mb_string_alloc(const char *str,
+      enum CodePage cp_in, enum CodePage cp_out)
+{
+   wchar_t *path_buf_wide = NULL;
+   int path_buf_wide_len  = MultiByteToWideChar(cp_in, 0, str, -1, NULL, 0);
+
+   /* Windows 95 will return 0 from these functions with 
+    * a UTF8 codepage set without MSLU.
+    *
+    * From an unknown MSDN version (others omit this info):
+    *   - CP_UTF8 Windows 98/Me, Windows NT 4.0 and later: 
+    *   Translate using UTF-8. When this is set, dwFlags must be zero.
+    *   - Windows 95: Under the Microsoft Layer for Unicode, 
+    *   MultiByteToWideChar also supports CP_UTF7 and CP_UTF8.
+    */
+
+   if (!path_buf_wide_len)
+      return strdup(str);
+
+   path_buf_wide = (wchar_t*)
+      calloc(path_buf_wide_len + sizeof(wchar_t), sizeof(wchar_t));
+
+   if (path_buf_wide)
+   {
+      MultiByteToWideChar(cp_in, 0,
+            str, -1, path_buf_wide, path_buf_wide_len);
+
+      if (*path_buf_wide)
+      {
+         int path_buf_len = WideCharToMultiByte(cp_out, 0,
+               path_buf_wide, -1, NULL, 0, NULL, NULL);
+
+         if (path_buf_len)
+         {
+            char *path_buf = (char*)
+               calloc(path_buf_len + sizeof(char), sizeof(char));
+
+            if (path_buf)
+            {
+               WideCharToMultiByte(cp_out, 0,
+                     path_buf_wide, -1, path_buf,
+                     path_buf_len, NULL, NULL);
+
+               free(path_buf_wide);
+
+               if (*path_buf)
+                  return path_buf;
+
+               free(path_buf);
+               return NULL;
+            }
+         }
+         else
+         {
+            free(path_buf_wide);
+            return strdup(str);
+         }
+      }
+
+      free(path_buf_wide);
+   }
+
+   return NULL;
+}
+#endif
+
+/* Returned pointer MUST be freed by the caller if non-NULL. */
+char* utf8_to_local_string_alloc(const char *str)
+{
+   if (str && *str)
+   {
+#if defined(_WIN32) && !defined(_XBOX) && !defined(UNICODE)
+      return mb_to_mb_string_alloc(str, CODEPAGE_UTF8, CODEPAGE_LOCAL);
+#else
+      /* assume string needs no modification if not on Windows */
+      return strdup(str);
+#endif
+   }
+   return NULL;
+}
+
+/* Returned pointer MUST be freed by the caller if non-NULL. */
+char* local_to_utf8_string_alloc(const char *str)
+{
+   if (str && *str)
+   {
+#if defined(_WIN32) && !defined(_XBOX) && !defined(UNICODE)
+      return mb_to_mb_string_alloc(str, CODEPAGE_LOCAL, CODEPAGE_UTF8);
+#else
+      /* assume string needs no modification if not on Windows */
+      return strdup(str);
+#endif
+   }
+   return NULL;
+}
+
+/* Returned pointer MUST be freed by the caller if non-NULL. */
+wchar_t* utf8_to_utf16_string_alloc(const char *str)
+{
+#ifdef _WIN32
+   int len        = 0;
+   int out_len    = 0;
+#else
+   size_t len     = 0;
+   size_t out_len = 0;
+#endif
+   wchar_t *buf   = NULL;
+
+   if (!str || !*str)
+      return NULL;
+
+#ifdef _WIN32
+   len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
+
+   if (len)
+   {
+      buf = (wchar_t*)calloc(len, sizeof(wchar_t));
+
+      if (!buf)
+         return NULL;
+
+      out_len = MultiByteToWideChar(CP_UTF8, 0, str, -1, buf, len);
+   }
+   else
+   {
+      /* fallback to ANSI codepage instead */
+      len = MultiByteToWideChar(CP_ACP, 0, str, -1, NULL, 0);
+
+      if (len)
+      {
+         buf = (wchar_t*)calloc(len, sizeof(wchar_t));
+
+         if (!buf)
+            return NULL;
+
+         out_len = MultiByteToWideChar(CP_ACP, 0, str, -1, buf, len);
+      }
+   }
+
+   if (out_len < 0)
+   {
+      free(buf);
+      return NULL;
+   }
+#else
+   /* NOTE: For now, assume non-Windows platforms' locale is already UTF-8. */
+   len = mbstowcs(NULL, str, 0) + 1;
+
+   if (len)
+   {
+      buf = (wchar_t*)calloc(len, sizeof(wchar_t));
+
+      if (!buf)
+         return NULL;
+
+      out_len = mbstowcs(buf, str, len);
+   }
+
+   if (out_len == (size_t)-1)
+   {
+      free(buf);
+      return NULL;
+   }
+#endif
+
+   return buf;
+}
+
+/* Returned pointer MUST be freed by the caller if non-NULL. */
+char* utf16_to_utf8_string_alloc(const wchar_t *str)
+{
+#ifdef _WIN32
+   int len        = 0;
+#else
+   size_t len     = 0;
+#endif
+   char *buf      = NULL;
+
+   if (!str || !*str)
+      return NULL;
+
+#ifdef _WIN32
+   {
+      UINT code_page = CP_UTF8;
+      len            = WideCharToMultiByte(code_page,
+            0, str, -1, NULL, 0, NULL, NULL);
+
+      /* fallback to ANSI codepage instead */
+      if (!len)
+      {
+         code_page   = CP_ACP;
+         len         = WideCharToMultiByte(code_page,
+               0, str, -1, NULL, 0, NULL, NULL);
+      }
+
+      buf = (char*)calloc(len, sizeof(char));
+
+      if (!buf)
+         return NULL;
+
+      if (WideCharToMultiByte(code_page,
+            0, str, -1, buf, len, NULL, NULL) < 0)
+      {
+         free(buf);
+         return NULL;
+      }
+   }
+#else
+   /* NOTE: For now, assume non-Windows platforms' 
+    * locale is already UTF-8. */
+   len = wcstombs(NULL, str, 0) + 1;
+
+   if (len)
+   {
+      buf = (char*)calloc(len, sizeof(char));
+
+      if (!buf)
+         return NULL;
+
+      if (wcstombs(buf, str, len) == (size_t)-1)
+      {
+         free(buf);
+         return NULL;
+      }
+   }
+#endif
+
+   return buf;
+}
diff --git a/libretro/libretro-common/file/file_path.c b/libretro/libretro-common/file/file_path.c
new file mode 100644
index 0000000..fc11270
--- /dev/null
+++ b/libretro/libretro-common/file/file_path.c
@@ -0,0 +1,1381 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (file_path.c).
+ * ---------------------------------------------------------------------------------------
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <errno.h>
+
+#include <sys/stat.h>
+
+#include <boolean.h>
+#include <file/file_path.h>
+#include <retro_assert.h>
+#include <string/stdstring.h>
+#include <time/rtime.h>
+
+/* TODO: There are probably some unnecessary things on this huge include list now but I'm too afraid to touch it */
+#ifdef __APPLE__
+#include <CoreFoundation/CoreFoundation.h>
+#endif
+#ifdef __HAIKU__
+#include <kernel/image.h>
+#endif
+#ifndef __MACH__
+#include <compat/strl.h>
+#include <compat/posix_string.h>
+#endif
+#include <retro_miscellaneous.h>
+#include <encodings/utf.h>
+
+#ifdef _WIN32
+#include <direct.h>
+#else
+#include <unistd.h> /* stat() is defined here */
+#endif
+
+#if !defined(RARCH_CONSOLE) && defined(RARCH_INTERNAL)
+#ifdef __WINRT__
+#include <uwp/uwp_func.h>
+#endif
+#endif
+
+/* Assume W-functions do not work below Win2K and Xbox platforms */
+#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 || defined(_XBOX)
+
+#ifndef LEGACY_WIN32
+#define LEGACY_WIN32
+#endif
+
+#endif
+
+/**
+ * path_get_archive_delim:
+ * @path               : path
+ *
+ * Find delimiter of an archive file. Only the first '#'
+ * after a compression extension is considered.
+ *
+ * Returns: pointer to the delimiter in the path if it contains
+ * a path inside a compressed file, otherwise NULL.
+ */
+const char *path_get_archive_delim(const char *path)
+{
+   const char *last_slash = find_last_slash(path);
+   const char *delim      = NULL;
+   char buf[5];
+
+   buf[0] = '\0';
+
+   /* We search for delimiters after the last slash
+    * in the file path to avoid capturing delimiter
+    * characters in any parent directory names.
+    * If there are no slashes in the file name, then
+    * the path is just the file basename - in this
+    * case we search the path in its entirety */
+   if (!last_slash)
+      last_slash = path;
+
+   /* Find delimiter position
+    * > Since filenames may contain '#' characters,
+    *   must loop until we find the first '#' that
+    *   is directly *after* a compression extension */
+   delim = strchr(last_slash, '#');
+
+   while (delim)
+   {
+      /* Check whether this is a known archive type
+       * > Note: The code duplication here is
+       *   deliberate, to maximise performance */
+      if (delim - last_slash > 4)
+      {
+         strlcpy(buf, delim - 4, sizeof(buf));
+         buf[4] = '\0';
+
+         string_to_lower(buf);
+
+         /* Check if this is a '.zip', '.apk' or '.7z' file */
+         if (string_is_equal(buf,     ".zip") ||
+             string_is_equal(buf,     ".apk") ||
+             string_is_equal(buf + 1, ".7z"))
+            return delim;
+      }
+      else if (delim - last_slash > 3)
+      {
+         strlcpy(buf, delim - 3, sizeof(buf));
+         buf[3] = '\0';
+
+         string_to_lower(buf);
+
+         /* Check if this is a '.7z' file */
+         if (string_is_equal(buf, ".7z"))
+            return delim;
+      }
+
+      delim++;
+      delim = strchr(delim, '#');
+   }
+
+   return NULL;
+}
+
+/**
+ * path_get_extension:
+ * @path               : path
+ *
+ * Gets extension of file. Only '.'s
+ * after the last slash are considered.
+ *
+ * Returns: extension part from the path.
+ */
+const char *path_get_extension(const char *path)
+{
+   const char *ext;
+   if (!string_is_empty(path) && ((ext = strrchr(path_basename(path), '.'))))
+      return ext + 1;
+   return "";
+}
+
+/**
+ * path_remove_extension:
+ * @path               : path
+ *
+ * Mutates path by removing its extension. Removes all
+ * text after and including the last '.'.
+ * Only '.'s after the last slash are considered.
+ *
+ * Returns:
+ * 1) If path has an extension, returns path with the
+ *    extension removed.
+ * 2) If there is no extension, returns NULL.
+ * 3) If path is empty or NULL, returns NULL
+ */
+char *path_remove_extension(char *path)
+{
+   char *last = !string_is_empty(path)
+      ? (char*)strrchr(path_basename(path), '.') : NULL;
+   if (!last)
+      return NULL;
+   if (*last)
+      *last = '\0';
+   return path;
+}
+
+/**
+ * path_is_compressed_file:
+ * @path               : path
+ *
+ * Checks if path is a compressed file.
+ *
+ * Returns: true (1) if path is a compressed file, otherwise false (0).
+ **/
+bool path_is_compressed_file(const char* path)
+{
+   const char *ext = path_get_extension(path);
+   if (!string_is_empty(ext))
+      if (  string_is_equal_noncase(ext, "zip") ||
+            string_is_equal_noncase(ext, "apk") ||
+            string_is_equal_noncase(ext, "7z"))
+         return true;
+   return false;
+}
+
+/**
+ * fill_pathname:
+ * @out_path           : output path
+ * @in_path            : input  path
+ * @replace            : what to replace
+ * @size               : buffer size of output path
+ *
+ * FIXME: Verify
+ *
+ * Replaces filename extension with 'replace' and outputs result to out_path.
+ * The extension here is considered to be the string from the last '.'
+ * to the end.
+ *
+ * Only '.'s after the last slash are considered as extensions.
+ * If no '.' is present, in_path and replace will simply be concatenated.
+ * 'size' is buffer size of 'out_path'.
+ * E.g.: in_path = "/foo/bar/baz/boo.c", replace = ".asm" =>
+ * out_path = "/foo/bar/baz/boo.asm"
+ * E.g.: in_path = "/foo/bar/baz/boo.c", replace = ""     =>
+ * out_path = "/foo/bar/baz/boo"
+ */
+void fill_pathname(char *out_path, const char *in_path,
+      const char *replace, size_t size)
+{
+   char tmp_path[PATH_MAX_LENGTH];
+   char *tok                      = NULL;
+
+   tmp_path[0] = '\0';
+
+   strlcpy(tmp_path, in_path, sizeof(tmp_path));
+   if ((tok = (char*)strrchr(path_basename(tmp_path), '.')))
+      *tok = '\0';
+
+   fill_pathname_noext(out_path, tmp_path, replace, size);
+}
+
+/**
+ * fill_pathname_noext:
+ * @out_path           : output path
+ * @in_path            : input  path
+ * @replace            : what to replace
+ * @size               : buffer size of output path
+ *
+ * Appends a filename extension 'replace' to 'in_path', and outputs
+ * result in 'out_path'.
+ *
+ * Assumes in_path has no extension. If an extension is still
+ * present in 'in_path', it will be ignored.
+ *
+ */
+size_t fill_pathname_noext(char *out_path, const char *in_path,
+      const char *replace, size_t size)
+{
+   strlcpy(out_path, in_path, size);
+   return strlcat(out_path, replace, size);
+}
+
+char *find_last_slash(const char *str)
+{
+   const char *slash     = strrchr(str, '/');
+#ifdef _WIN32
+   const char *backslash = strrchr(str, '\\');
+
+   if (!slash || (backslash > slash))
+      return (char*)backslash;
+#endif
+   return (char*)slash;
+}
+
+/**
+ * fill_pathname_slash:
+ * @path               : path
+ * @size               : size of path
+ *
+ * Assumes path is a directory. Appends a slash
+ * if not already there.
+ **/
+void fill_pathname_slash(char *path, size_t size)
+{
+   size_t path_len;
+   const char *last_slash = find_last_slash(path);
+
+   if (!last_slash)
+   {
+      strlcat(path, PATH_DEFAULT_SLASH(), size);
+      return;
+   }
+
+   path_len               = strlen(path);
+   /* Try to preserve slash type. */
+   if (last_slash != (path + path_len - 1))
+   {
+      path[path_len]   = last_slash[0];
+      path[path_len+1] = '\0';
+   }
+}
+
+/**
+ * fill_pathname_dir:
+ * @in_dir             : input directory path
+ * @in_basename        : input basename to be appended to @in_dir
+ * @replace            : replacement to be appended to @in_basename
+ * @size               : size of buffer
+ *
+ * Appends basename of 'in_basename', to 'in_dir', along with 'replace'.
+ * Basename of in_basename is the string after the last '/' or '\\',
+ * i.e the filename without directories.
+ *
+ * If in_basename has no '/' or '\\', the whole 'in_basename' will be used.
+ * 'size' is buffer size of 'in_dir'.
+ *
+ * E.g..: in_dir = "/tmp/some_dir", in_basename = "/some_content/foo.c",
+ * replace = ".asm" => in_dir = "/tmp/some_dir/foo.c.asm"
+ **/
+size_t fill_pathname_dir(char *in_dir, const char *in_basename,
+      const char *replace, size_t size)
+{
+   const char *base = NULL;
+
+   fill_pathname_slash(in_dir, size);
+   base = path_basename(in_basename);
+   strlcat(in_dir, base, size);
+   return strlcat(in_dir, replace, size);
+}
+
+/**
+ * fill_pathname_base:
+ * @out                : output path
+ * @in_path            : input path
+ * @size               : size of output path
+ *
+ * Copies basename of @in_path into @out_path.
+ **/
+size_t fill_pathname_base(char *out, const char *in_path, size_t size)
+{
+   const char     *ptr = path_basename(in_path);
+
+   if (!ptr)
+      ptr = in_path;
+
+   return strlcpy(out, ptr, size);
+}
+
+void fill_pathname_base_noext(char *out,
+      const char *in_path, size_t size)
+{
+   fill_pathname_base(out, in_path, size);
+   path_remove_extension(out);
+}
+
+size_t fill_pathname_base_ext(char *out,
+      const char *in_path, const char *ext,
+      size_t size)
+{
+   fill_pathname_base_noext(out, in_path, size);
+   return strlcat(out, ext, size);
+}
+
+/**
+ * fill_pathname_basedir:
+ * @out_dir            : output directory
+ * @in_path            : input path
+ * @size               : size of output directory
+ *
+ * Copies base directory of @in_path into @out_path.
+ * If in_path is a path without any slashes (relative current directory),
+ * @out_path will get path "./".
+ **/
+void fill_pathname_basedir(char *out_dir,
+      const char *in_path, size_t size)
+{
+   if (out_dir != in_path)
+      strlcpy(out_dir, in_path, size);
+   path_basedir(out_dir);
+}
+
+void fill_pathname_basedir_noext(char *out_dir,
+      const char *in_path, size_t size)
+{
+   fill_pathname_basedir(out_dir, in_path, size);
+   path_remove_extension(out_dir);
+}
+
+/**
+ * fill_pathname_parent_dir_name:
+ * @out_dir            : output directory
+ * @in_dir             : input directory
+ * @size               : size of output directory
+ *
+ * Copies only the parent directory name of @in_dir into @out_dir.
+ * The two buffers must not overlap. Removes trailing '/'.
+ * Returns true on success, false if a slash was not found in the path.
+ **/
+bool fill_pathname_parent_dir_name(char *out_dir,
+      const char *in_dir, size_t size)
+{
+   bool success = false;
+   char *temp   = strdup(in_dir);
+   char *last   = find_last_slash(temp);
+
+   if (last && last[1] == 0)
+   {
+      *last     = '\0';
+      last      = find_last_slash(temp);
+   }
+
+   if (last)
+      *last     = '\0';
+
+   in_dir       = find_last_slash(temp);
+
+   success      = in_dir && in_dir[1];
+
+   if (success)
+      strlcpy(out_dir, in_dir + 1, size);
+
+   free(temp);
+   return success;
+}
+
+/**
+ * fill_pathname_parent_dir:
+ * @out_dir            : output directory
+ * @in_dir             : input directory
+ * @size               : size of output directory
+ *
+ * Copies parent directory of @in_dir into @out_dir.
+ * Assumes @in_dir is a directory. Keeps trailing '/'.
+ * If the path was already at the root directory, @out_dir will be an empty string.
+ **/
+void fill_pathname_parent_dir(char *out_dir,
+      const char *in_dir, size_t size)
+{
+   if (out_dir != in_dir)
+      strlcpy(out_dir, in_dir, size);
+   path_parent_dir(out_dir);
+}
+
+/**
+ * fill_dated_filename:
+ * @out_filename       : output filename
+ * @ext                : extension of output filename
+ * @size               : buffer size of output filename
+ *
+ * Creates a 'dated' filename prefixed by 'RetroArch', and
+ * concatenates extension (@ext) to it.
+ *
+ * E.g.:
+ * out_filename = "RetroArch-{month}{day}-{Hours}{Minutes}.{@ext}"
+ **/
+size_t fill_dated_filename(char *out_filename,
+      const char *ext, size_t size)
+{
+   time_t cur_time = time(NULL);
+   struct tm tm_;
+
+   rtime_localtime(&cur_time, &tm_);
+
+   strftime(out_filename, size,
+         "RetroArch-%m%d-%H%M%S", &tm_);
+   return strlcat(out_filename, ext, size);
+}
+
+/**
+ * fill_str_dated_filename:
+ * @out_filename       : output filename
+ * @in_str             : input string
+ * @ext                : extension of output filename
+ * @size               : buffer size of output filename
+ *
+ * Creates a 'dated' filename prefixed by the string @in_str, and
+ * concatenates extension (@ext) to it.
+ *
+ * E.g.:
+ * out_filename = "RetroArch-{year}{month}{day}-{Hour}{Minute}{Second}.{@ext}"
+ **/
+void fill_str_dated_filename(char *out_filename,
+      const char *in_str, const char *ext, size_t size)
+{
+   char format[256];
+   struct tm tm_;
+   time_t cur_time = time(NULL);
+
+   format[0]       = '\0';
+
+   rtime_localtime(&cur_time, &tm_);
+
+   if (string_is_empty(ext))
+   {
+      strftime(format, sizeof(format), "-%y%m%d-%H%M%S", &tm_);
+      fill_pathname_noext(out_filename, in_str, format, size);
+   }
+   else
+   {
+      strftime(format, sizeof(format), "-%y%m%d-%H%M%S.", &tm_);
+
+      fill_pathname_join_concat_noext(out_filename,
+            in_str, format, ext,
+            size);
+   }
+}
+
+/**
+ * path_basedir:
+ * @path               : path
+ *
+ * Extracts base directory by mutating path.
+ * Keeps trailing '/'.
+ **/
+void path_basedir(char *path)
+{
+   char *last = NULL;
+
+   if (strlen(path) < 2)
+      return;
+
+   last = find_last_slash(path);
+
+   if (last)
+      last[1] = '\0';
+   else
+      strlcpy(path, "." PATH_DEFAULT_SLASH(), 3);
+}
+
+/**
+ * path_parent_dir:
+ * @path               : path
+ *
+ * Extracts parent directory by mutating path.
+ * Assumes that path is a directory. Keeps trailing '/'.
+ * If the path was already at the root directory, returns empty string
+ **/
+void path_parent_dir(char *path)
+{
+   size_t len = 0;
+
+   if (!path)
+      return;
+   
+   len = strlen(path);
+
+   if (len && PATH_CHAR_IS_SLASH(path[len - 1]))
+   {
+      bool path_was_absolute = path_is_absolute(path);
+
+      path[len - 1] = '\0';
+
+      if (path_was_absolute && !find_last_slash(path))
+      {
+         /* We removed the only slash from what used to be an absolute path.
+          * On Linux, this goes from "/" to an empty string and everything works fine,
+          * but on Windows, we went from C:\ to C:, which is not a valid path and that later
+          * gets errornously treated as a relative one by path_basedir and returns "./".
+          * What we really wanted is an empty string. */
+         path[0] = '\0';
+         return;
+      }
+   }
+   path_basedir(path);
+}
+
+/**
+ * path_basename:
+ * @path               : path
+ *
+ * Get basename from @path.
+ *
+ * Returns: basename from path.
+ **/
+const char *path_basename(const char *path)
+{
+   /* We cut at the first compression-related hash */
+   const char *delim = path_get_archive_delim(path);
+   if (delim)
+      return delim + 1;
+
+   {
+      /* We cut at the last slash */
+      const char *last  = find_last_slash(path);
+      if (last)
+         return last + 1;
+   }
+
+   return path;
+}
+
+/* Specialized version */
+const char *path_basename_nocompression(const char *path)
+{
+   /* We cut at the last slash */
+   const char *last  = find_last_slash(path);
+   if (last)
+      return last + 1;
+   return path;
+}
+
+/**
+ * path_is_absolute:
+ * @path               : path
+ *
+ * Checks if @path is an absolute path or a relative path.
+ *
+ * Returns: true if path is absolute, false if path is relative.
+ **/
+bool path_is_absolute(const char *path)
+{
+   if (string_is_empty(path))
+      return false;
+
+   if (path[0] == '/')
+      return true;
+
+#if defined(_WIN32)
+   /* Many roads lead to Rome...
+    * Note: Drive letter can only be 1 character long */
+   if (string_starts_with_size(path,     "\\\\", STRLEN_CONST("\\\\")) ||
+       string_starts_with_size(path + 1, ":/",   STRLEN_CONST(":/"))   ||
+       string_starts_with_size(path + 1, ":\\",  STRLEN_CONST(":\\")))
+      return true;
+#elif defined(__wiiu__) || defined(VITA)
+   {
+      const char *seperator = strchr(path, ':');
+      if (seperator && (seperator[1] == '/'))
+         return true;
+   }
+#endif
+
+   return false;
+}
+
+/**
+ * path_resolve_realpath:
+ * @buf                : input and output buffer for path
+ * @size               : size of buffer
+ * @resolve_symlinks   : whether to resolve symlinks or not
+ *
+ * Resolves use of ".", "..", multiple slashes etc in absolute paths.
+ *
+ * Relative paths are rebased on the current working dir.
+ *
+ * Returns: @buf if successful, NULL otherwise.
+ * Note: Not implemented on consoles
+ * Note: Symlinks are only resolved on Unix-likes
+ * Note: The current working dir might not be what you expect,
+ *       e.g. on Android it is "/"
+ *       Use of fill_pathname_resolve_relative() should be prefered
+ **/
+char *path_resolve_realpath(char *buf, size_t size, bool resolve_symlinks)
+{
+#if !defined(RARCH_CONSOLE) && defined(RARCH_INTERNAL)
+#ifdef _WIN32
+   char *ret = NULL;
+   wchar_t abs_path[PATH_MAX_LENGTH];
+   wchar_t *rel_path = utf8_to_utf16_string_alloc(buf);
+
+   if (rel_path)
+   {
+      if (_wfullpath(abs_path, rel_path, PATH_MAX_LENGTH))
+      {
+         char *tmp = utf16_to_utf8_string_alloc(abs_path);
+
+         if (tmp)
+         {
+            strlcpy(buf, tmp, size);
+            free(tmp);
+            ret = buf;
+         }
+      }
+
+      free(rel_path);
+   }
+
+   return ret;
+#else
+   char tmp[PATH_MAX_LENGTH];
+   size_t t;
+   char *p;
+   const char *next;
+   const char *buf_end;
+
+   if (resolve_symlinks)
+   {
+      strlcpy(tmp, buf, sizeof(tmp));
+
+      /* NOTE: realpath() expects at least PATH_MAX_LENGTH bytes in buf.
+       * Technically, PATH_MAX_LENGTH needn't be defined, but we rely on it anyways.
+       * POSIX 2008 can automatically allocate for you,
+       * but don't rely on that. */
+      if (!realpath(tmp, buf))
+      {
+         strlcpy(buf, tmp, size);
+         return NULL;
+      }
+
+      return buf;
+   }
+
+   t = 0; /* length of output */
+   buf_end = buf + strlen(buf);
+
+   if (!path_is_absolute(buf))
+   {
+      size_t len;
+      /* rebase on working directory */
+      if (!getcwd(tmp, PATH_MAX_LENGTH-1))
+         return NULL;
+
+      len = strlen(tmp);
+      t += len;
+
+      if (tmp[len-1] != '/')
+         tmp[t++] = '/';
+
+      if (string_is_empty(buf))
+         goto end;
+
+      p = buf;
+   }
+   else
+   {
+      /* UNIX paths can start with multiple '/', copy those */
+      for (p = buf; *p == '/'; p++)
+         tmp[t++] = '/';
+   }
+
+   /* p points to just after a slash while 'next' points to the next slash
+    * if there are no slashes, they point relative to where one would be */
+   do
+   {
+      next = strchr(p, '/');
+      if (!next)
+         next = buf_end;
+
+      if ((next - p == 2 && p[0] == '.' && p[1] == '.'))
+      {
+         p += 3;
+
+         /* fail for illegal /.., //.. etc */
+         if (t == 1 || tmp[t-2] == '/')
+            return NULL;
+
+         /* delete previous segment in tmp by adjusting size t
+          * tmp[t-1] == '/', find '/' before that */
+         t = t-2;
+         while (tmp[t] != '/')
+            t--;
+         t++;
+      }
+      else if (next - p == 1 && p[0] == '.')
+         p += 2;
+      else if (next - p == 0)
+         p += 1;
+      else
+      {
+         /* fail when truncating */
+         if (t + next-p+1 > PATH_MAX_LENGTH-1)
+            return NULL;
+
+         while (p <= next)
+            tmp[t++] = *p++;
+      }
+
+   }
+   while (next < buf_end);
+
+end:
+   tmp[t] = '\0';
+   strlcpy(buf, tmp, size);
+   return buf;
+#endif
+#endif
+   return NULL;
+}
+
+/**
+ * path_relative_to:
+ * @out                : buffer to write the relative path to
+ * @path               : path to be expressed relatively
+ * @base               : base directory to start out on
+ * @size               : size of output buffer
+ *
+ * Turns @path into a path relative to @base and writes it to @out.
+ *
+ * @base is assumed to be a base directory, i.e. a path ending with '/' or '\'.
+ * Both @path and @base are assumed to be absolute paths without "." or "..".
+ *
+ * E.g. path /a/b/e/f.cg with base /a/b/c/d/ turns into ../../e/f.cg
+ **/
+size_t path_relative_to(char *out,
+      const char *path, const char *base, size_t size)
+{
+   size_t i, j;
+   const char *trimmed_path, *trimmed_base;
+
+#ifdef _WIN32
+   /* For different drives, return absolute path */
+   if (strlen(path) >= 2 && strlen(base) >= 2
+         && path[1] == ':' && base[1] == ':'
+         && path[0] != base[0])
+      return strlcpy(out, path, size);
+#endif
+
+   /* Trim common beginning */
+   for (i = 0, j = 0; path[i] && base[i] && path[i] == base[i]; i++)
+      if (path[i] == PATH_DEFAULT_SLASH_C())
+         j = i + 1;
+
+   trimmed_path = path+j;
+   trimmed_base = base+i;
+
+   /* Each segment of base turns into ".." */
+   out[0] = '\0';
+   for (i = 0; trimmed_base[i]; i++)
+      if (trimmed_base[i] == PATH_DEFAULT_SLASH_C())
+         strlcat(out, ".." PATH_DEFAULT_SLASH(), size);
+
+   return strlcat(out, trimmed_path, size);
+}
+
+/**
+ * fill_pathname_resolve_relative:
+ * @out_path           : output path
+ * @in_refpath         : input reference path
+ * @in_path            : input path
+ * @size               : size of @out_path
+ *
+ * Joins basedir of @in_refpath together with @in_path.
+ * If @in_path is an absolute path, out_path = in_path.
+ * E.g.: in_refpath = "/foo/bar/baz.a", in_path = "foobar.cg",
+ * out_path = "/foo/bar/foobar.cg".
+ **/
+void fill_pathname_resolve_relative(char *out_path,
+      const char *in_refpath, const char *in_path, size_t size)
+{
+   if (path_is_absolute(in_path))
+   {
+      strlcpy(out_path, in_path, size);
+      return;
+   }
+
+   fill_pathname_basedir(out_path, in_refpath, size);
+   strlcat(out_path, in_path, size);
+   path_resolve_realpath(out_path, size, false);
+}
+
+/**
+ * fill_pathname_join:
+ * @out_path           : output path
+ * @dir                : directory
+ * @path               : path
+ * @size               : size of output path
+ *
+ * Joins a directory (@dir) and path (@path) together.
+ * Makes sure not to get  two consecutive slashes
+ * between directory and path.
+ **/
+size_t fill_pathname_join(char *out_path,
+      const char *dir, const char *path, size_t size)
+{
+   if (out_path != dir)
+      strlcpy(out_path, dir, size);
+
+   if (*out_path)
+      fill_pathname_slash(out_path, size);
+
+   return strlcat(out_path, path, size);
+}
+
+size_t fill_pathname_join_special_ext(char *out_path,
+      const char *dir,  const char *path,
+      const char *last, const char *ext,
+      size_t size)
+{
+   fill_pathname_join(out_path, dir, path, size);
+   if (*out_path)
+      fill_pathname_slash(out_path, size);
+
+   strlcat(out_path, last, size);
+   return strlcat(out_path, ext, size);
+}
+
+size_t fill_pathname_join_concat_noext(char *out_path,
+      const char *dir, const char *path,
+      const char *concat,
+      size_t size)
+{
+   fill_pathname_noext(out_path, dir, path, size);
+   return strlcat(out_path, concat, size);
+}
+
+size_t fill_pathname_join_concat(char *out_path,
+      const char *dir, const char *path,
+      const char *concat,
+      size_t size)
+{
+   fill_pathname_join(out_path, dir, path, size);
+   return strlcat(out_path, concat, size);
+}
+
+void fill_pathname_join_noext(char *out_path,
+      const char *dir, const char *path, size_t size)
+{
+   fill_pathname_join(out_path, dir, path, size);
+   path_remove_extension(out_path);
+}
+
+/**
+ * fill_pathname_join_delim:
+ * @out_path           : output path
+ * @dir                : directory
+ * @path               : path
+ * @delim              : delimiter
+ * @size               : size of output path
+ *
+ * Joins a directory (@dir) and path (@path) together
+ * using the given delimiter (@delim).
+ **/
+size_t fill_pathname_join_delim(char *out_path, const char *dir,
+      const char *path, const char delim, size_t size)
+{
+   size_t copied;
+   /* behavior of strlcpy is undefined if dst and src overlap */
+   if (out_path == dir)
+      copied = strlen(dir);
+   else
+      copied = strlcpy(out_path, dir, size);
+
+   out_path[copied]   = delim;
+   out_path[copied+1] = '\0';
+
+   if (path)
+      copied = strlcat(out_path, path, size);
+   return copied;
+}
+
+size_t fill_pathname_join_delim_concat(char *out_path, const char *dir,
+      const char *path, const char delim, const char *concat,
+      size_t size)
+{
+   fill_pathname_join_delim(out_path, dir, path, delim, size);
+   return strlcat(out_path, concat, size);
+}
+
+/**
+ * fill_short_pathname_representation:
+ * @out_rep            : output representation
+ * @in_path            : input path
+ * @size               : size of output representation
+ *
+ * Generates a short representation of path. It should only
+ * be used for displaying the result; the output representation is not
+ * binding in any meaningful way (for a normal path, this is the same as basename)
+ * In case of more complex URLs, this should cut everything except for
+ * the main image file.
+ *
+ * E.g.: "/path/to/game.img" -> game.img
+ *       "/path/to/myarchive.7z#folder/to/game.img" -> game.img
+ */
+size_t fill_short_pathname_representation(char* out_rep,
+      const char *in_path, size_t size)
+{
+   char path_short[PATH_MAX_LENGTH];
+
+   path_short[0] = '\0';
+
+   fill_pathname(path_short, path_basename(in_path), "",
+            sizeof(path_short));
+
+   return strlcpy(out_rep, path_short, size);
+}
+
+void fill_short_pathname_representation_noext(char* out_rep,
+      const char *in_path, size_t size)
+{
+   fill_short_pathname_representation(out_rep, in_path, size);
+   path_remove_extension(out_rep);
+}
+
+void fill_pathname_expand_special(char *out_path,
+      const char *in_path, size_t size)
+{
+#if !defined(RARCH_CONSOLE) && defined(RARCH_INTERNAL)
+   if (in_path[0] == '~')
+   {
+      char *home_dir = (char*)malloc(PATH_MAX_LENGTH * sizeof(char));
+
+      home_dir[0] = '\0';
+
+      fill_pathname_home_dir(home_dir,
+         PATH_MAX_LENGTH * sizeof(char));
+
+      if (*home_dir)
+      {
+         size_t src_size = strlcpy(out_path, home_dir, size);
+         retro_assert(src_size < size);
+
+         out_path  += src_size;
+         size      -= src_size;
+
+         if (!PATH_CHAR_IS_SLASH(out_path[-1]))
+         {
+            src_size = strlcpy(out_path, PATH_DEFAULT_SLASH(), size);
+            retro_assert(src_size < size);
+
+            out_path += src_size;
+            size     -= src_size;
+         }
+
+         in_path += 2;
+      }
+
+      free(home_dir);
+   }
+   else if (in_path[0] == ':')
+   {
+      char *application_dir = (char*)malloc(PATH_MAX_LENGTH * sizeof(char));
+
+      application_dir[0]    = '\0';
+
+      fill_pathname_application_dir(application_dir,
+            PATH_MAX_LENGTH * sizeof(char));
+
+      if (*application_dir)
+      {
+         size_t src_size   = strlcpy(out_path, application_dir, size);
+         retro_assert(src_size < size);
+
+         out_path  += src_size;
+         size      -= src_size;
+
+         if (!PATH_CHAR_IS_SLASH(out_path[-1]))
+         {
+            src_size = strlcpy(out_path, PATH_DEFAULT_SLASH(), size);
+            retro_assert(src_size < size);
+
+            out_path += src_size;
+            size     -= src_size;
+         }
+
+         in_path += 2;
+      }
+
+      free(application_dir);
+   }
+#endif
+
+   retro_assert(strlcpy(out_path, in_path, size) < size);
+}
+
+void fill_pathname_abbreviate_special(char *out_path,
+      const char *in_path, size_t size)
+{
+#if !defined(RARCH_CONSOLE) && defined(RARCH_INTERNAL)
+   unsigned i;
+   const char *candidates[3];
+   const char *notations[3];
+   char application_dir[PATH_MAX_LENGTH];
+   char home_dir[PATH_MAX_LENGTH];
+
+   application_dir[0] = '\0';
+   home_dir[0]        = '\0';
+
+   /* application_dir could be zero-string. Safeguard against this.
+    *
+    * Keep application dir in front of home, moving app dir to a
+    * new location inside home would break otherwise. */
+
+   /* ugly hack - use application_dir pointer
+    * before filling it in. C89 reasons */
+   candidates[0] = application_dir;
+   candidates[1] = home_dir;
+   candidates[2] = NULL;
+
+   notations [0] = ":";
+   notations [1] = "~";
+   notations [2] = NULL;
+
+   fill_pathname_application_dir(application_dir, sizeof(application_dir));
+   fill_pathname_home_dir(home_dir, sizeof(home_dir));
+
+   for (i = 0; candidates[i]; i++)
+   {
+      if (!string_is_empty(candidates[i]) &&
+          string_starts_with(in_path, candidates[i]))
+      {
+         size_t src_size  = strlcpy(out_path, notations[i], size);
+
+         retro_assert(src_size < size);
+
+         out_path        += src_size;
+         size            -= src_size;
+         in_path         += strlen(candidates[i]);
+
+         if (!PATH_CHAR_IS_SLASH(*in_path))
+         {
+            strcpy_literal(out_path, PATH_DEFAULT_SLASH());
+            out_path++;
+            size--;
+         }
+
+         break; /* Don't allow more abbrevs to take place. */
+      }
+   }
+
+#endif
+
+   retro_assert(strlcpy(out_path, in_path, size) < size);
+}
+
+/* Changes the slashes to the correct kind for the os 
+ * So forward slash on linux and backslash on Windows */
+void pathname_conform_slashes_to_os(char *path)
+{
+   /* Conform slashes to os standard so we get proper matching */
+   char* p;
+   for (p = path; *p; p++)
+      if (*p == '/' || *p == '\\')
+         *p = PATH_DEFAULT_SLASH_C();
+}
+
+/* Change all shashes to forward so they are more portable between windows and linux */
+void pathname_make_slashes_portable(char *path)
+{
+   /* Conform slashes to os standard so we get proper matching */
+   char* p;
+   for (p = path; *p; p++)
+      if (*p == '/' || *p == '\\')
+         *p = '/';
+}
+
+/* Get the number of slashes in a path, returns an integer */
+int get_pathname_num_slashes(const char *in_path)
+{
+   int num_slashes = 0;
+   int i = 0;
+
+   for (i = 0; i < PATH_MAX_LENGTH; i++)
+   {
+      if (PATH_CHAR_IS_SLASH(in_path[i]))
+         num_slashes++;
+      if (in_path[i] == '\0')
+         break;
+   }
+
+   return num_slashes;
+}
+
+/* Fills the supplied path with either the abbreviated path or the relative path, which ever
+ * one is has less depth / number of slashes
+ * If lengths of abbreviated and relative paths are the same the relative path will be used
+ * in_path can be an absolute, relative or abbreviated path */
+void fill_pathname_abbreviated_or_relative(char *out_path, const char *in_refpath, const char *in_path, size_t size)
+{
+   char in_path_conformed[PATH_MAX_LENGTH];
+   char in_refpath_conformed[PATH_MAX_LENGTH];
+   char expanded_path[PATH_MAX_LENGTH];
+   char absolute_path[PATH_MAX_LENGTH];
+   char relative_path[PATH_MAX_LENGTH];
+   char abbreviated_path[PATH_MAX_LENGTH];
+   
+   in_path_conformed[0]    = '\0';
+   in_refpath_conformed[0] = '\0';
+   expanded_path[0]        = '\0';
+   absolute_path[0]        = '\0';
+   relative_path[0]        = '\0';
+   abbreviated_path[0]     = '\0';
+
+   strcpy_literal(in_path_conformed, in_path);
+   strcpy_literal(in_refpath_conformed, in_refpath);
+
+   pathname_conform_slashes_to_os(in_path_conformed);
+   pathname_conform_slashes_to_os(in_refpath_conformed);
+
+   /* Expand paths which start with :\ to an absolute path */
+   fill_pathname_expand_special(expanded_path,
+         in_path_conformed, sizeof(expanded_path));
+
+   /* Get the absolute path if it is not already */
+   if (path_is_absolute(expanded_path))
+      strlcpy(absolute_path, expanded_path, PATH_MAX_LENGTH);
+   else
+      fill_pathname_resolve_relative(absolute_path,
+            in_refpath_conformed, in_path_conformed, PATH_MAX_LENGTH);
+
+   pathname_conform_slashes_to_os(absolute_path);
+
+   /* Get the relative path and see how many directories long it is */
+   path_relative_to(relative_path, absolute_path,
+         in_refpath_conformed, sizeof(relative_path));
+
+   /* Get the abbreviated path and see how many directories long it is */
+   fill_pathname_abbreviate_special(abbreviated_path,
+         absolute_path, sizeof(abbreviated_path));
+
+   /* Use the shortest path, preferring the relative path*/
+   if (  get_pathname_num_slashes(relative_path) <= 
+         get_pathname_num_slashes(abbreviated_path))
+      retro_assert(strlcpy(out_path, relative_path, size) < size);
+   else
+      retro_assert(strlcpy(out_path, abbreviated_path, size) < size);
+}
+
+/**
+ * path_basedir:
+ * @path               : path
+ *
+ * Extracts base directory by mutating path.
+ * Keeps trailing '/'.
+ **/
+void path_basedir_wrapper(char *path)
+{
+   char *last = NULL;
+   if (strlen(path) < 2)
+      return;
+
+#ifdef HAVE_COMPRESSION
+   /* We want to find the directory with the archive in basedir. */
+   last = (char*)path_get_archive_delim(path);
+   if (last)
+      *last = '\0';
+#endif
+
+   last = find_last_slash(path);
+
+   if (last)
+      last[1] = '\0';
+   else
+      strlcpy(path, "." PATH_DEFAULT_SLASH(), 3);
+}
+
+#if !defined(RARCH_CONSOLE) && defined(RARCH_INTERNAL)
+void fill_pathname_application_path(char *s, size_t len)
+{
+   size_t i;
+#ifdef __APPLE__
+  CFBundleRef bundle = CFBundleGetMainBundle();
+#endif
+#ifdef _WIN32
+   DWORD ret = 0;
+   wchar_t wstr[PATH_MAX_LENGTH] = {0};
+#endif
+#ifdef __HAIKU__
+   image_info info;
+   int32_t cookie = 0;
+#endif
+   (void)i;
+
+   if (!len)
+      return;
+
+#if defined(_WIN32)
+#ifdef LEGACY_WIN32
+   ret    = GetModuleFileNameA(NULL, s, len);
+#else
+   ret    = GetModuleFileNameW(NULL, wstr, ARRAY_SIZE(wstr));
+
+   if (*wstr)
+   {
+      char *str = utf16_to_utf8_string_alloc(wstr);
+
+      if (str)
+      {
+         strlcpy(s, str, len);
+         free(str);
+      }
+   }
+#endif
+   s[ret] = '\0';
+#elif defined(__APPLE__)
+   if (bundle)
+   {
+      CFURLRef bundle_url     = CFBundleCopyBundleURL(bundle);
+      CFStringRef bundle_path = CFURLCopyPath(bundle_url);
+      CFStringGetCString(bundle_path, s, len, kCFStringEncodingUTF8);
+#ifdef HAVE_COCOATOUCH
+      {
+         /* This needs to be done so that the path becomes 
+          * /private/var/... and this
+          * is used consistently throughout for the iOS bundle path */
+         char resolved_bundle_dir_buf[PATH_MAX_LENGTH] = {0};
+         if (realpath(s, resolved_bundle_dir_buf))
+         {
+            strlcpy(s, resolved_bundle_dir_buf, len - 1);
+            strlcat(s, "/", len);
+         }
+      }
+#endif
+
+      CFRelease(bundle_path);
+      CFRelease(bundle_url);
+#ifndef HAVE_COCOATOUCH
+      /* Not sure what this does but it breaks 
+       * stuff for iOS, so skipping */
+      retro_assert(strlcat(s, "nobin", len) < len);
+#endif
+      return;
+   }
+#elif defined(__HAIKU__)
+   while (get_next_image_info(0, &cookie, &info) == B_OK)
+   {
+      if (info.type == B_APP_IMAGE)
+      {
+         strlcpy(s, info.name, len);
+         return;
+      }
+   }
+#elif defined(__QNX__)
+   char *buff = malloc(len);
+
+   if (_cmdname(buff))
+      strlcpy(s, buff, len);
+
+   free(buff);
+#else
+   {
+      pid_t pid;
+      static const char *exts[] = { "exe", "file", "path/a.out" };
+      char link_path[255];
+
+      link_path[0] = *s = '\0';
+      pid       = getpid();
+
+      /* Linux, BSD and Solaris paths. Not standardized. */
+      for (i = 0; i < ARRAY_SIZE(exts); i++)
+      {
+         ssize_t ret;
+
+         snprintf(link_path, sizeof(link_path), "/proc/%u/%s",
+               (unsigned)pid, exts[i]);
+         ret = readlink(link_path, s, len - 1);
+
+         if (ret >= 0)
+         {
+            s[ret] = '\0';
+            return;
+         }
+      }
+   }
+#endif
+}
+
+void fill_pathname_application_dir(char *s, size_t len)
+{
+#ifdef __WINRT__
+   strlcpy(s, uwp_dir_install, len);
+#else
+   fill_pathname_application_path(s, len);
+   path_basedir_wrapper(s);
+#endif
+}
+
+void fill_pathname_home_dir(char *s, size_t len)
+{
+#ifdef __WINRT__
+   const char *home = uwp_dir_data;
+#else
+   const char *home = getenv("HOME");
+#endif
+   if (home)
+      strlcpy(s, home, len);
+   else
+      *s = 0;
+}
+#endif
+
+bool is_path_accessible_using_standard_io(const char *path)
+{
+#ifdef __WINRT__
+   char relative_path_abbrev[PATH_MAX_LENGTH];
+   fill_pathname_abbreviate_special(relative_path_abbrev,
+         path, sizeof(relative_path_abbrev));
+   return (strlen(relative_path_abbrev) >= 2 )
+      &&  (    relative_path_abbrev[0] == ':'
+            || relative_path_abbrev[0] == '~')
+      && PATH_CHAR_IS_SLASH(relative_path_abbrev[1]);
+#else
+   return true;
+#endif
+}
diff --git a/libretro/libretro-common/file/file_path_io.c b/libretro/libretro-common/file/file_path_io.c
new file mode 100644
index 0000000..63587e3
--- /dev/null
+++ b/libretro/libretro-common/file/file_path_io.c
@@ -0,0 +1,151 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (file_path_io.c).
+ * ---------------------------------------------------------------------------------------
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <errno.h>
+
+#include <sys/stat.h>
+
+#include <boolean.h>
+#include <file/file_path.h>
+#include <retro_assert.h>
+#include <compat/strl.h>
+#include <compat/posix_string.h>
+#include <retro_miscellaneous.h>
+#include <string/stdstring.h>
+#define VFS_FRONTEND
+#include <vfs/vfs_implementation.h>
+
+#ifdef _WIN32
+#include <direct.h>
+#else
+#include <unistd.h> /* stat() is defined here */
+#endif
+
+/* TODO/FIXME - globals */
+static retro_vfs_stat_t path_stat_cb   = retro_vfs_stat_impl;
+static retro_vfs_mkdir_t path_mkdir_cb = retro_vfs_mkdir_impl;
+
+void path_vfs_init(const struct retro_vfs_interface_info* vfs_info)
+{
+   const struct retro_vfs_interface* 
+      vfs_iface           = vfs_info->iface;
+
+   path_stat_cb           = retro_vfs_stat_impl;
+   path_mkdir_cb          = retro_vfs_mkdir_impl;
+
+   if (vfs_info->required_interface_version < PATH_REQUIRED_VFS_VERSION || !vfs_iface)
+      return;
+
+   path_stat_cb           = vfs_iface->stat;
+   path_mkdir_cb          = vfs_iface->mkdir;
+}
+
+int path_stat(const char *path)
+{
+   return path_stat_cb(path, NULL);
+}
+
+/**
+ * path_is_directory:
+ * @path               : path
+ *
+ * Checks if path is a directory.
+ *
+ * Returns: true (1) if path is a directory, otherwise false (0).
+ */
+bool path_is_directory(const char *path)
+{
+   return (path_stat_cb(path, NULL) & RETRO_VFS_STAT_IS_DIRECTORY) != 0;
+}
+
+bool path_is_character_special(const char *path)
+{
+   return (path_stat_cb(path, NULL) & RETRO_VFS_STAT_IS_CHARACTER_SPECIAL) != 0;
+}
+
+bool path_is_valid(const char *path)
+{
+   return (path_stat_cb(path, NULL) & RETRO_VFS_STAT_IS_VALID) != 0;
+}
+
+int32_t path_get_size(const char *path)
+{
+   int32_t filesize = 0;
+   if (path_stat_cb(path, &filesize) != 0)
+      return filesize;
+
+   return -1;
+}
+
+/**
+ * path_mkdir:
+ * @dir                : directory
+ *
+ * Create directory on filesystem.
+ *
+ * Returns: true (1) if directory could be created, otherwise false (0).
+ **/
+bool path_mkdir(const char *dir)
+{
+   bool norecurse     = false;
+   char     *basedir  = NULL;
+
+   if (!(dir && *dir))
+      return false;
+
+   /* Use heap. Real chance of stack 
+    * overflow if we recurse too hard. */
+   basedir            = strdup(dir);
+
+   if (!basedir)
+	   return false;
+
+   path_parent_dir(basedir);
+
+   if (!*basedir || !strcmp(basedir, dir))
+   {
+      free(basedir);
+      return false;
+   }
+
+   if (     path_is_directory(basedir)
+         || path_mkdir(basedir))
+      norecurse = true;
+
+   free(basedir);
+
+   if (norecurse)
+   {
+      int ret = path_mkdir_cb(dir);
+
+      /* Don't treat this as an error. */
+      if (ret == -2 && path_is_directory(dir))
+         return true;
+      else if (ret == 0)
+         return true;
+   }
+   return false;
+}
diff --git a/libretro/libretro-common/include/boolean.h b/libretro/libretro-common/include/boolean.h
new file mode 100644
index 0000000..9d0d7c1
--- /dev/null
+++ b/libretro/libretro-common/include/boolean.h
@@ -0,0 +1,39 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (boolean.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_BOOLEAN_H
+#define __LIBRETRO_SDK_BOOLEAN_H
+
+#ifndef __cplusplus
+
+#if defined(_MSC_VER) && _MSC_VER < 1800 && !defined(SN_TARGET_PS3)
+/* Hack applied for MSVC when compiling in C89 mode as it isn't C99 compliant. */
+#define bool unsigned char
+#define true 1
+#define false 0
+#else
+#include <stdbool.h>
+#endif
+
+#endif
+
+#endif
diff --git a/libretro/libretro-common/include/compat/fopen_utf8.h b/libretro/libretro-common/include/compat/fopen_utf8.h
new file mode 100644
index 0000000..97d4404
--- /dev/null
+++ b/libretro/libretro-common/include/compat/fopen_utf8.h
@@ -0,0 +1,34 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (fopen_utf8.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_COMPAT_FOPEN_UTF8_H
+#define __LIBRETRO_SDK_COMPAT_FOPEN_UTF8_H
+
+#ifdef _WIN32
+/* Defined to error rather than fopen_utf8, to make it clear to everyone reading the code that not worrying about utf16 is fine */
+/* TODO: enable */
+/* #define fopen (use fopen_utf8 instead) */
+void *fopen_utf8(const char * filename, const char * mode);
+#else
+#define fopen_utf8 fopen
+#endif
+#endif
diff --git a/libretro/libretro-common/include/compat/msvc.h b/libretro/libretro-common/include/compat/msvc.h
new file mode 100644
index 0000000..a4c93a5
--- /dev/null
+++ b/libretro/libretro-common/include/compat/msvc.h
@@ -0,0 +1,126 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (msvc.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_COMPAT_MSVC_H
+#define __LIBRETRO_SDK_COMPAT_MSVC_H
+
+#ifdef _MSC_VER
+
+#ifdef __cplusplus
+extern "C"  {
+#endif
+
+/* Pre-MSVC 2015 compilers don't implement snprintf, vsnprintf in a cross-platform manner. */
+#if _MSC_VER < 1900
+   #include <stdio.h>
+   #include <stdarg.h>
+   #include <stdlib.h>
+
+   #ifndef snprintf
+      #define snprintf c99_snprintf_retro__
+   #endif
+   int c99_snprintf_retro__(char *outBuf, size_t size, const char *format, ...);
+
+   #ifndef vsnprintf
+      #define vsnprintf c99_vsnprintf_retro__
+   #endif
+   int c99_vsnprintf_retro__(char *outBuf, size_t size, const char *format, va_list ap);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#undef UNICODE /* Do not bother with UNICODE at this time. */
+#include <direct.h>
+#include <stddef.h>
+
+#define _USE_MATH_DEFINES
+#include <math.h>
+
+/* Python headers defines ssize_t and sets HAVE_SSIZE_T.
+ * Cannot duplicate these efforts.
+ */
+#ifndef HAVE_SSIZE_T
+#if defined(_WIN64)
+typedef __int64 ssize_t;
+#elif defined(_WIN32)
+typedef int ssize_t;
+#endif
+#endif
+
+#define mkdir(dirname, unused) _mkdir(dirname)
+#define strtoull _strtoui64
+#undef strcasecmp
+#define strcasecmp _stricmp
+#undef strncasecmp
+#define strncasecmp _strnicmp
+
+/* Disable some of the annoying warnings. */
+#pragma warning(disable : 4800)
+#pragma warning(disable : 4805)
+#pragma warning(disable : 4244)
+#pragma warning(disable : 4305)
+#pragma warning(disable : 4146)
+#pragma warning(disable : 4267)
+#pragma warning(disable : 4723)
+#pragma warning(disable : 4996)
+
+/* roundf and va_copy is available since MSVC 2013 */
+#if _MSC_VER < 1800
+#define roundf(in) (in >= 0.0f ? floorf(in + 0.5f) : ceilf(in - 0.5f))
+#define va_copy(x, y) ((x) = (y))
+#endif
+
+#if _MSC_VER <= 1310
+   #ifndef __cplusplus
+      /* VC6 math.h doesn't define some functions when in C mode.
+       * Trying to define a prototype gives "undefined reference".
+       * But providing an implementation then gives "function already has body".
+       * So the equivalent of the implementations from math.h are used as
+       * defines here instead, and it seems to work.
+       */
+      #define cosf(x) ((float)cos((double)x))
+      #define powf(x, y) ((float)pow((double)x, (double)y))
+      #define sinf(x) ((float)sin((double)x))
+      #define ceilf(x) ((float)ceil((double)x))
+      #define floorf(x) ((float)floor((double)x))
+      #define sqrtf(x) ((float)sqrt((double)x))
+      #define fabsf(x)    ((float)fabs((double)(x)))
+   #endif
+
+   #ifndef _strtoui64
+      #define _strtoui64(x, y, z) (_atoi64(x))
+   #endif
+
+#endif
+
+#ifndef PATH_MAX
+#define PATH_MAX _MAX_PATH
+#endif
+
+#ifndef SIZE_MAX
+#define SIZE_MAX _UI32_MAX
+#endif
+
+#endif
+#endif
diff --git a/libretro/libretro-common/include/compat/msvc/stdint.h b/libretro/libretro-common/include/compat/msvc/stdint.h
new file mode 100644
index 0000000..7c91a68
--- /dev/null
+++ b/libretro/libretro-common/include/compat/msvc/stdint.h
@@ -0,0 +1,255 @@
+/* ISO C9x  compliant stdint.h for Microsoft Visual Studio
+ * Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124
+ *
+ * Copyright (c) 2006-2008 Alexander Chemeris
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. The name of the author may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __RARCH_STDINT_H
+#define __RARCH_STDINT_H
+
+#if _MSC_VER && (_MSC_VER < 1600)
+/* Pre-MSVC 2010 needs an implementation of stdint.h. */
+
+#if _MSC_VER > 1000
+#pragma once
+#endif
+
+#include <limits.h>
+
+/* For Visual Studio 6 in C++ mode and for many Visual Studio versions when
+ * compiling for ARM we should wrap <wchar.h> include with 'extern "C++" {}'
+ * or compiler give many errors like this:
+ *
+ * error C2733: second C linkage of overloaded function 'wmemchr' not allowed
+ */
+#ifdef __cplusplus
+#if _MSC_VER <= 1200
+extern "C++" {
+#else
+extern "C" {
+#endif
+#endif
+#  include <wchar.h>
+#ifdef __cplusplus
+}
+#endif
+
+/* Define _W64 macros to mark types changing their size, like intptr_t. */
+#ifndef _W64
+#  if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300
+#     define _W64 __w64
+#  else
+#     define _W64
+#  endif
+#endif
+
+/* 7.18.1 Integer types. */
+
+/* 7.18.1.1 Exact-width integer types. */
+
+/* Visual Studio 6 and Embedded Visual C++ 4 doesn't
+ * realize that, e.g. char has the same size as __int8
+ * so we give up on __intX for them.
+ */
+#if (_MSC_VER < 1300)
+   typedef signed char       int8_t;
+   typedef signed short      int16_t;
+   typedef signed int        int32_t;
+   typedef unsigned char     uint8_t;
+   typedef unsigned short    uint16_t;
+   typedef unsigned int      uint32_t;
+#else
+   typedef signed __int8     int8_t;
+   typedef signed __int16    int16_t;
+   typedef signed __int32    int32_t;
+   typedef unsigned __int8   uint8_t;
+   typedef unsigned __int16  uint16_t;
+   typedef unsigned __int32  uint32_t;
+#endif
+typedef signed __int64       int64_t;
+typedef unsigned __int64     uint64_t;
+
+/* 7.18.1.2 Minimum-width integer types. */
+typedef int8_t    int_least8_t;
+typedef int16_t   int_least16_t;
+typedef int32_t   int_least32_t;
+typedef int64_t   int_least64_t;
+typedef uint8_t   uint_least8_t;
+typedef uint16_t  uint_least16_t;
+typedef uint32_t  uint_least32_t;
+typedef uint64_t  uint_least64_t;
+
+/* 7.18.1.3 Fastest minimum-width integer types. */
+typedef int8_t    int_fast8_t;
+typedef int16_t   int_fast16_t;
+typedef int32_t   int_fast32_t;
+typedef int64_t   int_fast64_t;
+typedef uint8_t   uint_fast8_t;
+typedef uint16_t  uint_fast16_t;
+typedef uint32_t  uint_fast32_t;
+typedef uint64_t  uint_fast64_t;
+
+/* 7.18.1.4 Integer types capable of holding object pointers. */
+#ifdef _WIN64 /* [ */
+   typedef signed __int64    intptr_t;
+   typedef unsigned __int64  uintptr_t;
+#else /* _WIN64 ][ */
+   typedef _W64 signed int   intptr_t;
+   typedef _W64 unsigned int uintptr_t;
+#endif /* _WIN64 ] */
+
+/* 7.18.1.5 Greatest-width integer types. */
+typedef int64_t   intmax_t;
+typedef uint64_t  uintmax_t;
+
+/* 7.18.2 Limits of specified-width integer types. */
+
+#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS)
+/* [   See footnote 220 at page 257 and footnote 221 at page 259. */
+
+/* 7.18.2.1 Limits of exact-width integer types. */
+#define INT8_MIN     ((int8_t)_I8_MIN)
+#define INT8_MAX     _I8_MAX
+#define INT16_MIN    ((int16_t)_I16_MIN)
+#define INT16_MAX    _I16_MAX
+#define INT32_MIN    ((int32_t)_I32_MIN)
+#define INT32_MAX    _I32_MAX
+#define INT64_MIN    ((int64_t)_I64_MIN)
+#define INT64_MAX    _I64_MAX
+#define UINT8_MAX    _UI8_MAX
+#define UINT16_MAX   _UI16_MAX
+#define UINT32_MAX   _UI32_MAX
+#define UINT64_MAX   _UI64_MAX
+
+/* 7.18.2.2 Limits of minimum-width integer types. */
+#define INT_LEAST8_MIN    INT8_MIN
+#define INT_LEAST8_MAX    INT8_MAX
+#define INT_LEAST16_MIN   INT16_MIN
+#define INT_LEAST16_MAX   INT16_MAX
+#define INT_LEAST32_MIN   INT32_MIN
+#define INT_LEAST32_MAX   INT32_MAX
+#define INT_LEAST64_MIN   INT64_MIN
+#define INT_LEAST64_MAX   INT64_MAX
+#define UINT_LEAST8_MAX   UINT8_MAX
+#define UINT_LEAST16_MAX  UINT16_MAX
+#define UINT_LEAST32_MAX  UINT32_MAX
+#define UINT_LEAST64_MAX  UINT64_MAX
+
+/* 7.18.2.3 Limits of fastest minimum-width integer types. */
+#define INT_FAST8_MIN    INT8_MIN
+#define INT_FAST8_MAX    INT8_MAX
+#define INT_FAST16_MIN   INT16_MIN
+#define INT_FAST16_MAX   INT16_MAX
+#define INT_FAST32_MIN   INT32_MIN
+#define INT_FAST32_MAX   INT32_MAX
+#define INT_FAST64_MIN   INT64_MIN
+#define INT_FAST64_MAX   INT64_MAX
+#define UINT_FAST8_MAX   UINT8_MAX
+#define UINT_FAST16_MAX  UINT16_MAX
+#define UINT_FAST32_MAX  UINT32_MAX
+#define UINT_FAST64_MAX  UINT64_MAX
+
+/* 7.18.2.4 Limits of integer types capable of holding object pointers. */
+#ifdef _WIN64 /* [ */
+#  define INTPTR_MIN   INT64_MIN
+#  define INTPTR_MAX   INT64_MAX
+#  define UINTPTR_MAX  UINT64_MAX
+#else /* _WIN64 ][ */
+#  define INTPTR_MIN   INT32_MIN
+#  define INTPTR_MAX   INT32_MAX
+#  define UINTPTR_MAX  UINT32_MAX
+#endif /* _WIN64 ] */
+
+/* 7.18.2.5 Limits of greatest-width integer types */
+#define INTMAX_MIN   INT64_MIN
+#define INTMAX_MAX   INT64_MAX
+#define UINTMAX_MAX  UINT64_MAX
+
+/* 7.18.3 Limits of other integer types */
+
+#ifdef _WIN64 /* [ */
+#  define PTRDIFF_MIN  _I64_MIN
+#  define PTRDIFF_MAX  _I64_MAX
+#else  /* _WIN64 ][ */
+#  define PTRDIFF_MIN  _I32_MIN
+#  define PTRDIFF_MAX  _I32_MAX
+#endif  /* _WIN64 ] */
+
+#define SIG_ATOMIC_MIN  INT_MIN
+#define SIG_ATOMIC_MAX  INT_MAX
+
+#ifndef SIZE_MAX /* [ */
+#  ifdef _WIN64 /* [ */
+#     define SIZE_MAX  _UI64_MAX
+#  else /* _WIN64 ][ */
+#     define SIZE_MAX  _UI32_MAX
+#  endif /* _WIN64 ] */
+#endif /* SIZE_MAX ] */
+
+/* WCHAR_MIN and WCHAR_MAX are also defined in <wchar.h> */
+#ifndef WCHAR_MIN /* [ */
+#  define WCHAR_MIN  0
+#endif  /* WCHAR_MIN ] */
+#ifndef WCHAR_MAX // [
+#  define WCHAR_MAX  _UI16_MAX
+#endif  /* WCHAR_MAX ] */
+
+#define WINT_MIN  0
+#define WINT_MAX  _UI16_MAX
+
+#endif /* __STDC_LIMIT_MACROS ] */
+
+/* 7.18.4 Limits of other integer types */
+
+#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS)
+/* [   See footnote 224 at page 260 */
+
+/* 7.18.4.1 Macros for minimum-width integer constants */
+
+#define INT8_C(val)  val##i8
+#define INT16_C(val) val##i16
+#define INT32_C(val) val##i32
+#define INT64_C(val) val##i64
+
+#define UINT8_C(val)  val##ui8
+#define UINT16_C(val) val##ui16
+#define UINT32_C(val) val##ui32
+#define UINT64_C(val) val##ui64
+
+/* 7.18.4.2 Macros for greatest-width integer constants */
+#define INTMAX_C   INT64_C
+#define UINTMAX_C  UINT64_C
+
+#endif
+/* __STDC_CONSTANT_MACROS ] */
+
+#else
+/* Sanity for everything else. */
+#include <stdint.h>
+#endif
+
+#endif
diff --git a/libretro/libretro-common/include/compat/posix_string.h b/libretro/libretro-common/include/compat/posix_string.h
new file mode 100644
index 0000000..47964b2
--- /dev/null
+++ b/libretro/libretro-common/include/compat/posix_string.h
@@ -0,0 +1,60 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (posix_string.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_COMPAT_POSIX_STRING_H
+#define __LIBRETRO_SDK_COMPAT_POSIX_STRING_H
+
+#include <retro_common_api.h>
+
+#ifdef _MSC_VER
+#include <compat/msvc.h>
+#endif
+
+RETRO_BEGIN_DECLS
+
+#ifdef _WIN32
+#undef strtok_r
+#define strtok_r(str, delim, saveptr) retro_strtok_r__(str, delim, saveptr)
+
+char *strtok_r(char *str, const char *delim, char **saveptr);
+#endif
+
+#ifdef _MSC_VER
+#undef strcasecmp
+#undef strdup
+#define strcasecmp(a, b) retro_strcasecmp__(a, b)
+#define strdup(orig)     retro_strdup__(orig)
+int strcasecmp(const char *a, const char *b);
+char *strdup(const char *orig);
+
+/* isblank is available since MSVC 2013 */
+#if _MSC_VER < 1800
+#undef isblank
+#define isblank(c)       retro_isblank__(c)
+int isblank(int c);
+#endif
+
+#endif
+
+RETRO_END_DECLS
+
+#endif
diff --git a/libretro/libretro-common/include/compat/strcasestr.h b/libretro/libretro-common/include/compat/strcasestr.h
new file mode 100644
index 0000000..227e253
--- /dev/null
+++ b/libretro/libretro-common/include/compat/strcasestr.h
@@ -0,0 +1,48 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (strcasestr.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_COMPAT_STRCASESTR_H
+#define __LIBRETRO_SDK_COMPAT_STRCASESTR_H
+
+#include <string.h>
+
+#if defined(RARCH_INTERNAL) && defined(HAVE_CONFIG_H)
+#include "../../../config.h"
+#endif
+
+#ifndef HAVE_STRCASESTR
+
+#include <retro_common_api.h>
+
+RETRO_BEGIN_DECLS
+
+/* Avoid possible naming collisions during link
+ * since we prefer to use the actual name. */
+#define strcasestr(haystack, needle) strcasestr_retro__(haystack, needle)
+
+char *strcasestr(const char *haystack, const char *needle);
+
+RETRO_END_DECLS
+
+#endif
+
+#endif
diff --git a/libretro/libretro-common/include/compat/strl.h b/libretro/libretro-common/include/compat/strl.h
new file mode 100644
index 0000000..5e7a892
--- /dev/null
+++ b/libretro/libretro-common/include/compat/strl.h
@@ -0,0 +1,59 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (strl.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_COMPAT_STRL_H
+#define __LIBRETRO_SDK_COMPAT_STRL_H
+
+#include <string.h>
+#include <stddef.h>
+
+#if defined(RARCH_INTERNAL) && defined(HAVE_CONFIG_H)
+#include "../../../config.h"
+#endif
+
+#include <retro_common_api.h>
+
+RETRO_BEGIN_DECLS
+
+#ifdef __MACH__
+#ifndef HAVE_STRL
+#define HAVE_STRL
+#endif
+#endif
+
+#ifndef HAVE_STRL
+/* Avoid possible naming collisions during link since
+ * we prefer to use the actual name. */
+#define strlcpy(dst, src, size) strlcpy_retro__(dst, src, size)
+
+#define strlcat(dst, src, size) strlcat_retro__(dst, src, size)
+
+size_t strlcpy(char *dest, const char *source, size_t size);
+size_t strlcat(char *dest, const char *source, size_t size);
+
+#endif
+
+char *strldup(const char *s, size_t n);
+
+RETRO_END_DECLS
+
+#endif
diff --git a/libretro/libretro-common/include/encodings/utf.h b/libretro/libretro-common/include/encodings/utf.h
new file mode 100644
index 0000000..bea4e14
--- /dev/null
+++ b/libretro/libretro-common/include/encodings/utf.h
@@ -0,0 +1,67 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (utf.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_ENCODINGS_UTF_H
+#define _LIBRETRO_ENCODINGS_UTF_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+#include <boolean.h>
+
+#include <retro_common_api.h>
+
+RETRO_BEGIN_DECLS
+
+enum CodePage
+{
+   CODEPAGE_LOCAL = 0, /* CP_ACP */
+   CODEPAGE_UTF8  = 65001 /* CP_UTF8 */
+};
+
+size_t utf8_conv_utf32(uint32_t *out, size_t out_chars,
+      const char *in, size_t in_size);
+
+bool utf16_conv_utf8(uint8_t *out, size_t *out_chars,
+      const uint16_t *in, size_t in_size);
+
+size_t utf8len(const char *string);
+
+size_t utf8cpy(char *d, size_t d_len, const char *s, size_t chars);
+
+const char *utf8skip(const char *str, size_t chars);
+
+uint32_t utf8_walk(const char **string);
+
+bool utf16_to_char_string(const uint16_t *in, char *s, size_t len);
+
+char* utf8_to_local_string_alloc(const char *str);
+
+char* local_to_utf8_string_alloc(const char *str);
+
+wchar_t* utf8_to_utf16_string_alloc(const char *str);
+
+char* utf16_to_utf8_string_alloc(const wchar_t *str);
+
+RETRO_END_DECLS
+
+#endif
diff --git a/libretro/libretro-common/include/file/file_path.h b/libretro/libretro-common/include/file/file_path.h
new file mode 100644
index 0000000..452763f
--- /dev/null
+++ b/libretro/libretro-common/include/file/file_path.h
@@ -0,0 +1,538 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (file_path.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_FILE_PATH_H
+#define __LIBRETRO_SDK_FILE_PATH_H
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <sys/types.h>
+
+#include <libretro.h>
+#include <retro_common_api.h>
+
+#include <boolean.h>
+
+RETRO_BEGIN_DECLS
+
+#define PATH_REQUIRED_VFS_VERSION 3
+
+void path_vfs_init(const struct retro_vfs_interface_info* vfs_info);
+
+/* Order in this enum is equivalent to negative sort order in filelist
+ *  (i.e. DIRECTORY is on top of PLAIN_FILE) */
+enum
+{
+   RARCH_FILETYPE_UNSET,
+   RARCH_PLAIN_FILE,
+   RARCH_COMPRESSED_FILE_IN_ARCHIVE,
+   RARCH_COMPRESSED_ARCHIVE,
+   RARCH_DIRECTORY,
+   RARCH_FILE_UNSUPPORTED
+};
+
+/**
+ * path_is_compressed_file:
+ * @path               : path
+ *
+ * Checks if path is a compressed file.
+ *
+ * Returns: true (1) if path is a compressed file, otherwise false (0).
+ **/
+bool path_is_compressed_file(const char *path);
+
+/**
+ * path_contains_compressed_file:
+ * @path               : path
+ *
+ * Checks if path contains a compressed file.
+ *
+ * Currently we only check for hash symbol (#) inside the pathname.
+ * If path is ever expanded to a general URI, we should check for that here.
+ *
+ * Example:  Somewhere in the path there might be a compressed file
+ * E.g.: /path/to/file.7z#mygame.img
+ *
+ * Returns: true (1) if path contains compressed file, otherwise false (0).
+ **/
+#define path_contains_compressed_file(path) (path_get_archive_delim((path)) != NULL)
+
+/**
+ * path_get_archive_delim:
+ * @path               : path
+ *
+ * Gets delimiter of an archive file. Only the first '#'
+ * after a compression extension is considered.
+ *
+ * Returns: pointer to the delimiter in the path if it contains
+ * a compressed file, otherwise NULL.
+ */
+const char *path_get_archive_delim(const char *path);
+
+/**
+ * path_get_extension:
+ * @path               : path
+ *
+ * Gets extension of file. Only '.'s
+ * after the last slash are considered.
+ *
+ * Returns: extension part from the path.
+ */
+const char *path_get_extension(const char *path);
+
+/**
+ * path_remove_extension:
+ * @path               : path
+ *
+ * Mutates path by removing its extension. Removes all
+ * text after and including the last '.'.
+ * Only '.'s after the last slash are considered.
+ *
+ * Returns:
+ * 1) If path has an extension, returns path with the
+ *    extension removed.
+ * 2) If there is no extension, returns NULL.
+ * 3) If path is empty or NULL, returns NULL
+ */
+char *path_remove_extension(char *path);
+
+/**
+ * path_basename:
+ * @path               : path
+ *
+ * Get basename from @path.
+ *
+ * Returns: basename from path.
+ **/
+const char *path_basename(const char *path);
+const char *path_basename_nocompression(const char *path);
+
+/**
+ * path_basedir:
+ * @path               : path
+ *
+ * Extracts base directory by mutating path.
+ * Keeps trailing '/'.
+ **/
+void path_basedir(char *path);
+
+/**
+ * path_parent_dir:
+ * @path               : path
+ *
+ * Extracts parent directory by mutating path.
+ * Assumes that path is a directory. Keeps trailing '/'.
+ * If the path was already at the root directory, returns empty string
+ **/
+void path_parent_dir(char *path);
+
+/**
+ * path_resolve_realpath:
+ * @buf                : input and output buffer for path
+ * @size               : size of buffer
+ * @resolve_symlinks   : whether to resolve symlinks or not
+ *
+ * Resolves use of ".", "..", multiple slashes etc in absolute paths.
+ *
+ * Relative paths are rebased on the current working dir.
+ *
+ * Returns: @buf if successful, NULL otherwise.
+ * Note: Not implemented on consoles
+ * Note: Symlinks are only resolved on Unix-likes
+ * Note: The current working dir might not be what you expect,
+ *       e.g. on Android it is "/"
+ *       Use of fill_pathname_resolve_relative() should be prefered
+ **/
+char *path_resolve_realpath(char *buf, size_t size, bool resolve_symlinks);
+
+/**
+ * path_relative_to:
+ * @out                : buffer to write the relative path to
+ * @path               : path to be expressed relatively
+ * @base               : relative to this
+ * @size               : size of output buffer
+ *
+ * Turns @path into a path relative to @base and writes it to @out.
+ *
+ * @base is assumed to be a base directory, i.e. a path ending with '/' or '\'.
+ * Both @path and @base are assumed to be absolute paths without "." or "..".
+ *
+ * E.g. path /a/b/e/f.cgp with base /a/b/c/d/ turns into ../../e/f.cgp
+ **/
+size_t path_relative_to(char *out, const char *path, const char *base, size_t size);
+
+/**
+ * path_is_absolute:
+ * @path               : path
+ *
+ * Checks if @path is an absolute path or a relative path.
+ *
+ * Returns: true if path is absolute, false if path is relative.
+ **/
+bool path_is_absolute(const char *path);
+
+/**
+ * fill_pathname:
+ * @out_path           : output path
+ * @in_path            : input  path
+ * @replace            : what to replace
+ * @size               : buffer size of output path
+ *
+ * FIXME: Verify
+ *
+ * Replaces filename extension with 'replace' and outputs result to out_path.
+ * The extension here is considered to be the string from the last '.'
+ * to the end.
+ *
+ * Only '.'s after the last slash are considered as extensions.
+ * If no '.' is present, in_path and replace will simply be concatenated.
+ * 'size' is buffer size of 'out_path'.
+ * E.g.: in_path = "/foo/bar/baz/boo.c", replace = ".asm" =>
+ * out_path = "/foo/bar/baz/boo.asm"
+ * E.g.: in_path = "/foo/bar/baz/boo.c", replace = ""     =>
+ * out_path = "/foo/bar/baz/boo"
+ */
+void fill_pathname(char *out_path, const char *in_path,
+      const char *replace, size_t size);
+
+/**
+ * fill_dated_filename:
+ * @out_filename       : output filename
+ * @ext                : extension of output filename
+ * @size               : buffer size of output filename
+ *
+ * Creates a 'dated' filename prefixed by 'RetroArch', and
+ * concatenates extension (@ext) to it.
+ *
+ * E.g.:
+ * out_filename = "RetroArch-{month}{day}-{Hours}{Minutes}.{@ext}"
+ **/
+size_t fill_dated_filename(char *out_filename,
+      const char *ext, size_t size);
+
+/**
+ * fill_str_dated_filename:
+ * @out_filename       : output filename
+ * @in_str             : input string
+ * @ext                : extension of output filename
+ * @size               : buffer size of output filename
+ *
+ * Creates a 'dated' filename prefixed by the string @in_str, and
+ * concatenates extension (@ext) to it.
+ *
+ * E.g.:
+ * out_filename = "RetroArch-{year}{month}{day}-{Hour}{Minute}{Second}.{@ext}"
+ **/
+void fill_str_dated_filename(char *out_filename,
+      const char *in_str, const char *ext, size_t size);
+
+/**
+ * fill_pathname_noext:
+ * @out_path           : output path
+ * @in_path            : input  path
+ * @replace            : what to replace
+ * @size               : buffer size of output path
+ *
+ * Appends a filename extension 'replace' to 'in_path', and outputs
+ * result in 'out_path'.
+ *
+ * Assumes in_path has no extension. If an extension is still
+ * present in 'in_path', it will be ignored.
+ *
+ */
+size_t fill_pathname_noext(char *out_path, const char *in_path,
+      const char *replace, size_t size);
+
+/**
+ * find_last_slash:
+ * @str : input path
+ *
+ * Gets a pointer to the last slash in the input path.
+ *
+ * Returns: a pointer to the last slash in the input path.
+ **/
+char *find_last_slash(const char *str);
+
+/**
+ * fill_pathname_dir:
+ * @in_dir             : input directory path
+ * @in_basename        : input basename to be appended to @in_dir
+ * @replace            : replacement to be appended to @in_basename
+ * @size               : size of buffer
+ *
+ * Appends basename of 'in_basename', to 'in_dir', along with 'replace'.
+ * Basename of in_basename is the string after the last '/' or '\\',
+ * i.e the filename without directories.
+ *
+ * If in_basename has no '/' or '\\', the whole 'in_basename' will be used.
+ * 'size' is buffer size of 'in_dir'.
+ *
+ * E.g..: in_dir = "/tmp/some_dir", in_basename = "/some_content/foo.c",
+ * replace = ".asm" => in_dir = "/tmp/some_dir/foo.c.asm"
+ **/
+size_t fill_pathname_dir(char *in_dir, const char *in_basename,
+      const char *replace, size_t size);
+
+/**
+ * fill_pathname_base:
+ * @out                : output path
+ * @in_path            : input path
+ * @size               : size of output path
+ *
+ * Copies basename of @in_path into @out_path.
+ **/
+size_t fill_pathname_base(char *out_path, const char *in_path, size_t size);
+
+void fill_pathname_base_noext(char *out_dir,
+      const char *in_path, size_t size);
+
+size_t fill_pathname_base_ext(char *out,
+      const char *in_path, const char *ext,
+      size_t size);
+
+/**
+ * fill_pathname_basedir:
+ * @out_dir            : output directory
+ * @in_path            : input path
+ * @size               : size of output directory
+ *
+ * Copies base directory of @in_path into @out_path.
+ * If in_path is a path without any slashes (relative current directory),
+ * @out_path will get path "./".
+ **/
+void fill_pathname_basedir(char *out_path, const char *in_path, size_t size);
+
+void fill_pathname_basedir_noext(char *out_dir,
+      const char *in_path, size_t size);
+
+/**
+ * fill_pathname_parent_dir_name:
+ * @out_dir            : output directory
+ * @in_dir             : input directory
+ * @size               : size of output directory
+ *
+ * Copies only the parent directory name of @in_dir into @out_dir.
+ * The two buffers must not overlap. Removes trailing '/'.
+ * Returns true on success, false if a slash was not found in the path.
+ **/
+bool fill_pathname_parent_dir_name(char *out_dir,
+      const char *in_dir, size_t size);
+
+/**
+ * fill_pathname_parent_dir:
+ * @out_dir            : output directory
+ * @in_dir             : input directory
+ * @size               : size of output directory
+ *
+ * Copies parent directory of @in_dir into @out_dir.
+ * Assumes @in_dir is a directory. Keeps trailing '/'.
+ * If the path was already at the root directory, @out_dir will be an empty string.
+ **/
+void fill_pathname_parent_dir(char *out_dir,
+      const char *in_dir, size_t size);
+
+/**
+ * fill_pathname_resolve_relative:
+ * @out_path           : output path
+ * @in_refpath         : input reference path
+ * @in_path            : input path
+ * @size               : size of @out_path
+ *
+ * Joins basedir of @in_refpath together with @in_path.
+ * If @in_path is an absolute path, out_path = in_path.
+ * E.g.: in_refpath = "/foo/bar/baz.a", in_path = "foobar.cg",
+ * out_path = "/foo/bar/foobar.cg".
+ **/
+void fill_pathname_resolve_relative(char *out_path, const char *in_refpath,
+      const char *in_path, size_t size);
+
+/**
+ * fill_pathname_join:
+ * @out_path           : output path
+ * @dir                : directory
+ * @path               : path
+ * @size               : size of output path
+ *
+ * Joins a directory (@dir) and path (@path) together.
+ * Makes sure not to get  two consecutive slashes
+ * between directory and path.
+ **/
+size_t fill_pathname_join(char *out_path, const char *dir,
+      const char *path, size_t size);
+
+size_t fill_pathname_join_special_ext(char *out_path,
+      const char *dir,  const char *path,
+      const char *last, const char *ext,
+      size_t size);
+
+size_t fill_pathname_join_concat_noext(char *out_path,
+      const char *dir, const char *path,
+      const char *concat,
+      size_t size);
+
+size_t fill_pathname_join_concat(char *out_path,
+      const char *dir, const char *path,
+      const char *concat,
+      size_t size);
+
+void fill_pathname_join_noext(char *out_path,
+      const char *dir, const char *path, size_t size);
+
+/**
+ * fill_pathname_join_delim:
+ * @out_path           : output path
+ * @dir                : directory
+ * @path               : path
+ * @delim              : delimiter
+ * @size               : size of output path
+ *
+ * Joins a directory (@dir) and path (@path) together
+ * using the given delimiter (@delim).
+ **/
+size_t fill_pathname_join_delim(char *out_path, const char *dir,
+      const char *path, const char delim, size_t size);
+
+size_t fill_pathname_join_delim_concat(char *out_path, const char *dir,
+      const char *path, const char delim, const char *concat,
+      size_t size);
+
+/**
+ * fill_short_pathname_representation:
+ * @out_rep            : output representation
+ * @in_path            : input path
+ * @size               : size of output representation
+ *
+ * Generates a short representation of path. It should only
+ * be used for displaying the result; the output representation is not
+ * binding in any meaningful way (for a normal path, this is the same as basename)
+ * In case of more complex URLs, this should cut everything except for
+ * the main image file.
+ *
+ * E.g.: "/path/to/game.img" -> game.img
+ *       "/path/to/myarchive.7z#folder/to/game.img" -> game.img
+ */
+size_t fill_short_pathname_representation(char* out_rep,
+      const char *in_path, size_t size);
+
+void fill_short_pathname_representation_noext(char* out_rep,
+      const char *in_path, size_t size);
+
+void fill_pathname_expand_special(char *out_path,
+      const char *in_path, size_t size);
+
+void fill_pathname_abbreviate_special(char *out_path,
+      const char *in_path, size_t size);
+
+void fill_pathname_abbreviated_or_relative(char *out_path, const char *in_refpath, const char *in_path, size_t size);
+
+void pathname_conform_slashes_to_os(char *path);
+
+void pathname_make_slashes_portable(char *path);
+
+/**
+ * path_basedir:
+ * @path               : path
+ *
+ * Extracts base directory by mutating path.
+ * Keeps trailing '/'.
+ **/
+void path_basedir_wrapper(char *path);
+
+/**
+ * path_char_is_slash:
+ * @c                  : character
+ *
+ * Checks if character (@c) is a slash.
+ *
+ * Returns: true (1) if character is a slash, otherwise false (0).
+ */
+#ifdef _WIN32
+#define PATH_CHAR_IS_SLASH(c) (((c) == '/') || ((c) == '\\'))
+#else
+#define PATH_CHAR_IS_SLASH(c) ((c) == '/')
+#endif
+
+/**
+ * path_default_slash and path_default_slash_c:
+ *
+ * Gets the default slash separator.
+ *
+ * Returns: default slash separator.
+ */
+#ifdef _WIN32
+#define PATH_DEFAULT_SLASH() "\\"
+#define PATH_DEFAULT_SLASH_C() '\\'
+#else
+#define PATH_DEFAULT_SLASH() "/"
+#define PATH_DEFAULT_SLASH_C() '/'
+#endif
+
+/**
+ * fill_pathname_slash:
+ * @path               : path
+ * @size               : size of path
+ *
+ * Assumes path is a directory. Appends a slash
+ * if not already there.
+ **/
+void fill_pathname_slash(char *path, size_t size);
+
+#if !defined(RARCH_CONSOLE) && defined(RARCH_INTERNAL)
+void fill_pathname_application_path(char *buf, size_t size);
+void fill_pathname_application_dir(char *buf, size_t size);
+void fill_pathname_home_dir(char *buf, size_t size);
+#endif
+
+/**
+ * path_mkdir:
+ * @dir                : directory
+ *
+ * Create directory on filesystem.
+ *
+ * Returns: true (1) if directory could be created, otherwise false (0).
+ **/
+bool path_mkdir(const char *dir);
+
+/**
+ * path_is_directory:
+ * @path               : path
+ *
+ * Checks if path is a directory.
+ *
+ * Returns: true (1) if path is a directory, otherwise false (0).
+ */
+bool path_is_directory(const char *path);
+
+bool path_is_character_special(const char *path);
+
+int path_stat(const char *path);
+
+bool path_is_valid(const char *path);
+
+int32_t path_get_size(const char *path);
+
+bool is_path_accessible_using_standard_io(const char *path);
+
+RETRO_END_DECLS
+
+#endif
diff --git a/libretro.h b/libretro/libretro-common/include/libretro.h
similarity index 87%
rename from libretro.h
rename to libretro/libretro-common/include/libretro.h
index 32aa15f..d9e28bf 100644
--- a/libretro.h
+++ b/libretro/libretro-common/include/libretro.h
@@ -1131,6 +1131,13 @@ enum retro_mod
                                             * retro_core_option_definition structs to RETRO_ENVIRONMENT_SET_CORE_OPTIONS_INTL.
                                             * This allows the core to additionally set option sublabel information
                                             * and/or provide localisation support.
+                                            *
+                                            * If version is >= 2, core options may instead be set by passing
+                                            * a retro_core_options_v2 struct to RETRO_ENVIRONMENT_SET_CORE_OPTIONS_V2,
+                                            * or an array of retro_core_options_v2 structs to
+                                            * RETRO_ENVIRONMENT_SET_CORE_OPTIONS_V2_INTL. This allows the core
+                                            * to additionally set optional core option category information
+                                            * for frontends with core option category support.
                                             */
 
 #define RETRO_ENVIRONMENT_SET_CORE_OPTIONS 53
@@ -1172,7 +1179,7 @@ enum retro_mod
                                             * default value is NULL, the first entry in the
                                             * retro_core_option_definition::values array is treated as the default.
                                             *
-                                            * The number of possible options should be very limited,
+                                            * The number of possible option values should be very limited,
                                             * and must be less than RETRO_NUM_CORE_OPTION_VALUES_MAX.
                                             * i.e. it should be feasible to cycle through options
                                             * without a keyboard.
@@ -1205,6 +1212,7 @@ enum retro_mod
                                             * This should only be called if RETRO_ENVIRONMENT_GET_CORE_OPTIONS_VERSION
                                             * returns an API version of >= 1.
                                             * This should be called instead of RETRO_ENVIRONMENT_SET_VARIABLES.
+                                            * This should be called instead of RETRO_ENVIRONMENT_SET_CORE_OPTIONS.
                                             * This should be called the first time as early as
                                             * possible (ideally in retro_set_environment).
                                             * Afterwards it may be called again for the core to communicate
@@ -1493,6 +1501,227 @@ enum retro_mod
                                             *   retro_load_game_special()
                                             */
 
+#define RETRO_ENVIRONMENT_SET_CORE_OPTIONS_V2 67
+                                           /* const struct retro_core_options_v2 * --
+                                            * Allows an implementation to signal the environment
+                                            * which variables it might want to check for later using
+                                            * GET_VARIABLE.
+                                            * This allows the frontend to present these variables to
+                                            * a user dynamically.
+                                            * This should only be called if RETRO_ENVIRONMENT_GET_CORE_OPTIONS_VERSION
+                                            * returns an API version of >= 2.
+                                            * This should be called instead of RETRO_ENVIRONMENT_SET_VARIABLES.
+                                            * This should be called instead of RETRO_ENVIRONMENT_SET_CORE_OPTIONS.
+                                            * This should be called the first time as early as
+                                            * possible (ideally in retro_set_environment).
+                                            * Afterwards it may be called again for the core to communicate
+                                            * updated options to the frontend, but the number of core
+                                            * options must not change from the number in the initial call.
+                                            * If RETRO_ENVIRONMENT_GET_CORE_OPTIONS_VERSION returns an API
+                                            * version of >= 2, this callback is guaranteed to succeed
+                                            * (i.e. callback return value does not indicate success)
+                                            * If callback returns true, frontend has core option category
+                                            * support.
+                                            * If callback returns false, frontend does not have core option
+                                            * category support.
+                                            *
+                                            * 'data' points to a retro_core_options_v2 struct, containing
+                                            * of two pointers:
+                                            * - retro_core_options_v2::categories is an array of
+                                            *   retro_core_option_v2_category structs terminated by a
+                                            *   { NULL, NULL, NULL } element. If retro_core_options_v2::categories
+                                            *   is NULL, all core options will have no category and will be shown
+                                            *   at the top level of the frontend core option interface. If frontend
+                                            *   does not have core option category support, categories array will
+                                            *   be ignored.
+                                            * - retro_core_options_v2::definitions is an array of
+                                            *   retro_core_option_v2_definition structs terminated by a
+                                            *   { NULL, NULL, NULL, NULL, NULL, NULL, {{0}}, NULL }
+                                            *   element.
+                                            *
+                                            * >> retro_core_option_v2_category notes:
+                                            *
+                                            * - retro_core_option_v2_category::key should contain string
+                                            *   that uniquely identifies the core option category. Valid
+                                            *   key characters are [a-z, A-Z, 0-9, _, -]
+                                            *   Namespace collisions with other implementations' category
+                                            *   keys are permitted.
+                                            * - retro_core_option_v2_category::desc should contain a human
+                                            *   readable description of the category key.
+                                            * - retro_core_option_v2_category::info should contain any
+                                            *   additional human readable information text that a typical
+                                            *   user may need to understand the nature of the core option
+                                            *   category.
+                                            *
+                                            * Example entry:
+                                            * {
+                                            *     "advanced_settings",
+                                            *     "Advanced",
+                                            *     "Options affecting low-level emulation performance and accuracy."
+                                            * }
+                                            *
+                                            * >> retro_core_option_v2_definition notes:
+                                            *
+                                            * - retro_core_option_v2_definition::key should be namespaced to not
+                                            *   collide with other implementations' keys. e.g. A core called
+                                            *   'foo' should use keys named as 'foo_option'. Valid key characters
+                                            *   are [a-z, A-Z, 0-9, _, -].
+                                            * - retro_core_option_v2_definition::desc should contain a human readable
+                                            *   description of the key. Will be used when the frontend does not
+                                            *   have core option category support. Examples: "Aspect Ratio" or
+                                            *   "Video > Aspect Ratio".
+                                            * - retro_core_option_v2_definition::desc_categorized should contain a
+                                            *   human readable description of the key, which will be used when
+                                            *   frontend has core option category support. Example: "Aspect Ratio",
+                                            *   where associated retro_core_option_v2_category::desc is "Video".
+                                            *   If empty or NULL, the string specified by
+                                            *   retro_core_option_v2_definition::desc will be used instead.
+                                            *   retro_core_option_v2_definition::desc_categorized will be ignored
+                                            *   if retro_core_option_v2_definition::category_key is empty or NULL.
+                                            * - retro_core_option_v2_definition::info should contain any additional
+                                            *   human readable information text that a typical user may need to
+                                            *   understand the functionality of the option.
+                                            * - retro_core_option_v2_definition::info_categorized should contain
+                                            *   any additional human readable information text that a typical user
+                                            *   may need to understand the functionality of the option, and will be
+                                            *   used when frontend has core option category support. This is provided
+                                            *   to accommodate the case where info text references an option by
+                                            *   name/desc, and the desc/desc_categorized text for that option differ.
+                                            *   If empty or NULL, the string specified by
+                                            *   retro_core_option_v2_definition::info will be used instead.
+                                            *   retro_core_option_v2_definition::info_categorized will be ignored
+                                            *   if retro_core_option_v2_definition::category_key is empty or NULL.
+                                            * - retro_core_option_v2_definition::category_key should contain a
+                                            *   category identifier (e.g. "video" or "audio") that will be
+                                            *   assigned to the core option if frontend has core option category
+                                            *   support. A categorized option will be shown in a subsection/
+                                            *   submenu of the frontend core option interface. If key is empty
+                                            *   or NULL, or if key does not match one of the
+                                            *   retro_core_option_v2_category::key values in the associated
+                                            *   retro_core_option_v2_category array, option will have no category
+                                            *   and will be shown at the top level of the frontend core option
+                                            *   interface.
+                                            * - retro_core_option_v2_definition::values is an array of
+                                            *   retro_core_option_value structs terminated by a { NULL, NULL }
+                                            *   element.
+                                            * --> retro_core_option_v2_definition::values[index].value is an
+                                            *     expected option value.
+                                            * --> retro_core_option_v2_definition::values[index].label is a
+                                            *     human readable label used when displaying the value on screen.
+                                            *     If NULL, the value itself is used.
+                                            * - retro_core_option_v2_definition::default_value is the default
+                                            *   core option setting. It must match one of the expected option
+                                            *   values in the retro_core_option_v2_definition::values array. If
+                                            *   it does not, or the default value is NULL, the first entry in the
+                                            *   retro_core_option_v2_definition::values array is treated as the
+                                            *   default.
+                                            *
+                                            * The number of possible option values should be very limited,
+                                            * and must be less than RETRO_NUM_CORE_OPTION_VALUES_MAX.
+                                            * i.e. it should be feasible to cycle through options
+                                            * without a keyboard.
+                                            *
+                                            * Example entries:
+                                            *
+                                            * - Uncategorized:
+                                            *
+                                            * {
+                                            *     "foo_option",
+                                            *     "Speed hack coprocessor X",
+                                            *     NULL,
+                                            *     "Provides increased performance at the expense of reduced accuracy.",
+                                            *     NULL,
+                                            *     NULL,
+                                            * 	  {
+                                            *         { "false",    NULL },
+                                            *         { "true",     NULL },
+                                            *         { "unstable", "Turbo (Unstable)" },
+                                            *         { NULL, NULL },
+                                            *     },
+                                            *     "false"
+                                            * }
+                                            *
+                                            * - Categorized:
+                                            *
+                                            * {
+                                            *     "foo_option",
+                                            *     "Advanced > Speed hack coprocessor X",
+                                            *     "Speed hack coprocessor X",
+                                            *     "Setting 'Advanced > Speed hack coprocessor X' to 'true' or 'Turbo' provides increased performance at the expense of reduced accuracy",
+                                            *     "Setting 'Speed hack coprocessor X' to 'true' or 'Turbo' provides increased performance at the expense of reduced accuracy",
+                                            *     "advanced_settings",
+                                            * 	  {
+                                            *         { "false",    NULL },
+                                            *         { "true",     NULL },
+                                            *         { "unstable", "Turbo (Unstable)" },
+                                            *         { NULL, NULL },
+                                            *     },
+                                            *     "false"
+                                            * }
+                                            *
+                                            * Only strings are operated on. The possible values will
+                                            * generally be displayed and stored as-is by the frontend.
+                                            */
+
+#define RETRO_ENVIRONMENT_SET_CORE_OPTIONS_V2_INTL 68
+                                           /* const struct retro_core_options_v2_intl * --
+                                            * Allows an implementation to signal the environment
+                                            * which variables it might want to check for later using
+                                            * GET_VARIABLE.
+                                            * This allows the frontend to present these variables to
+                                            * a user dynamically.
+                                            * This should only be called if RETRO_ENVIRONMENT_GET_CORE_OPTIONS_VERSION
+                                            * returns an API version of >= 2.
+                                            * This should be called instead of RETRO_ENVIRONMENT_SET_VARIABLES.
+                                            * This should be called instead of RETRO_ENVIRONMENT_SET_CORE_OPTIONS.
+                                            * This should be called instead of RETRO_ENVIRONMENT_SET_CORE_OPTIONS_INTL.
+                                            * This should be called instead of RETRO_ENVIRONMENT_SET_CORE_OPTIONS_V2.
+                                            * This should be called the first time as early as
+                                            * possible (ideally in retro_set_environment).
+                                            * Afterwards it may be called again for the core to communicate
+                                            * updated options to the frontend, but the number of core
+                                            * options must not change from the number in the initial call.
+                                            * If RETRO_ENVIRONMENT_GET_CORE_OPTIONS_VERSION returns an API
+                                            * version of >= 2, this callback is guaranteed to succeed
+                                            * (i.e. callback return value does not indicate success)
+                                            * If callback returns true, frontend has core option category
+                                            * support.
+                                            * If callback returns false, frontend does not have core option
+                                            * category support.
+                                            *
+                                            * This is fundamentally the same as RETRO_ENVIRONMENT_SET_CORE_OPTIONS_V2,
+                                            * with the addition of localisation support. The description of the
+                                            * RETRO_ENVIRONMENT_SET_CORE_OPTIONS_V2 callback should be consulted
+                                            * for further details.
+                                            *
+                                            * 'data' points to a retro_core_options_v2_intl struct.
+                                            *
+                                            * - retro_core_options_v2_intl::us is a pointer to a
+                                            *   retro_core_options_v2 struct defining the US English
+                                            *   core options implementation. It must point to a valid struct.
+                                            *
+                                            * - retro_core_options_v2_intl::local is a pointer to a
+                                            *   retro_core_options_v2 struct defining core options for
+                                            *   the current frontend language. It may be NULL (in which case
+                                            *   retro_core_options_v2_intl::us is used by the frontend). Any items
+                                            *   missing from this struct will be read from
+                                            *   retro_core_options_v2_intl::us instead.
+                                            *
+                                            * NOTE: Default core option values are always taken from the
+                                            * retro_core_options_v2_intl::us struct. Any default values in
+                                            * the retro_core_options_v2_intl::local struct will be ignored.
+                                            */
+
+#define RETRO_ENVIRONMENT_SET_CORE_OPTIONS_UPDATE_DISPLAY_CALLBACK 69
+                                           /* const struct retro_core_options_update_display_callback * --
+                                            * Allows a frontend to signal that a core must update
+                                            * the visibility of any dynamically hidden core options,
+                                            * and enables the frontend to detect visibility changes.
+                                            * Used by the frontend to update the menu display status
+                                            * of core options without requiring a call of retro_run().
+                                            * Must be called in retro_set_environment().
+                                            */
+
 /* VFS functionality */
 
 /* File paths:
@@ -3214,6 +3443,143 @@ struct retro_core_options_intl
    struct retro_core_option_definition *local;
 };
 
+struct retro_core_option_v2_category
+{
+   /* Variable uniquely identifying the
+    * option category. Valid key characters
+    * are [a-z, A-Z, 0-9, _, -] */
+   const char *key;
+
+   /* Human-readable category description
+    * > Used as category menu label when
+    *   frontend has core option category
+    *   support */
+   const char *desc;
+
+   /* Human-readable category information
+    * > Used as category menu sublabel when
+    *   frontend has core option category
+    *   support
+    * > Optional (may be NULL or an empty
+    *   string) */
+   const char *info;
+};
+
+struct retro_core_option_v2_definition
+{
+   /* Variable to query in RETRO_ENVIRONMENT_GET_VARIABLE.
+    * Valid key characters are [a-z, A-Z, 0-9, _, -] */
+   const char *key;
+
+   /* Human-readable core option description
+    * > Used as menu label when frontend does
+    *   not have core option category support
+    *   e.g. "Video > Aspect Ratio" */
+   const char *desc;
+
+   /* Human-readable core option description
+    * > Used as menu label when frontend has
+    *   core option category support
+    *   e.g. "Aspect Ratio", where associated
+    *   retro_core_option_v2_category::desc
+    *   is "Video"
+    * > If empty or NULL, the string specified by
+    *   desc will be used as the menu label
+    * > Will be ignored (and may be set to NULL)
+    *   if category_key is empty or NULL */
+   const char *desc_categorized;
+
+   /* Human-readable core option information
+    * > Used as menu sublabel */
+   const char *info;
+
+   /* Human-readable core option information
+    * > Used as menu sublabel when frontend
+    *   has core option category support
+    *   (e.g. may be required when info text
+    *   references an option by name/desc,
+    *   and the desc/desc_categorized text
+    *   for that option differ)
+    * > If empty or NULL, the string specified by
+    *   info will be used as the menu sublabel
+    * > Will be ignored (and may be set to NULL)
+    *   if category_key is empty or NULL */
+   const char *info_categorized;
+
+   /* Variable specifying category (e.g. "video",
+    * "audio") that will be assigned to the option
+    * if frontend has core option category support.
+    * > Categorized options will be displayed in a
+    *   subsection/submenu of the frontend core
+    *   option interface
+    * > Specified string must match one of the
+    *   retro_core_option_v2_category::key values
+    *   in the associated retro_core_option_v2_category
+    *   array; If no match is not found, specified
+    *   string will be considered as NULL
+    * > If specified string is empty or NULL, option will
+    *   have no category and will be shown at the top
+    *   level of the frontend core option interface */
+   const char *category_key;
+
+   /* Array of retro_core_option_value structs, terminated by NULL */
+   struct retro_core_option_value values[RETRO_NUM_CORE_OPTION_VALUES_MAX];
+
+   /* Default core option value. Must match one of the values
+    * in the retro_core_option_value array, otherwise will be
+    * ignored */
+   const char *default_value;
+};
+
+struct retro_core_options_v2
+{
+   /* Array of retro_core_option_v2_category structs,
+    * terminated by NULL
+    * > If NULL, all entries in definitions array
+    *   will have no category and will be shown at
+    *   the top level of the frontend core option
+    *   interface
+    * > Will be ignored if frontend does not have
+    *   core option category support */
+   struct retro_core_option_v2_category *categories;
+
+   /* Array of retro_core_option_v2_definition structs,
+    * terminated by NULL */
+   struct retro_core_option_v2_definition *definitions;
+};
+
+struct retro_core_options_v2_intl
+{
+   /* Pointer to a retro_core_options_v2 struct
+    * > US English implementation
+    * > Must point to a valid struct */
+   struct retro_core_options_v2 *us;
+
+   /* Pointer to a retro_core_options_v2 struct
+    * - Implementation for current frontend language
+    * - May be NULL */
+   struct retro_core_options_v2 *local;
+};
+
+/* Used by the frontend to monitor changes in core option
+ * visibility. May be called each time any core option
+ * value is set via the frontend.
+ * - On each invocation, the core must update the visibility
+ *   of any dynamically hidden options using the
+ *   RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY environment
+ *   callback.
+ * - On the first invocation, returns 'true' if the visibility
+ *   of any core option has changed since the last call of
+ *   retro_load_game() or retro_load_game_special().
+ * - On each subsequent invocation, returns 'true' if the
+ *   visibility of any core option has changed since the last
+ *   time the function was called. */
+typedef bool (RETRO_CALLCONV *retro_core_options_update_display_callback_t)(void);
+struct retro_core_options_update_display_callback
+{
+   retro_core_options_update_display_callback_t callback;
+};
+
 struct retro_game_info
 {
    const char *path;       /* Path to game, UTF-8 encoded.
diff --git a/libretro/libretro-common/include/retro_assert.h b/libretro/libretro-common/include/retro_assert.h
new file mode 100644
index 0000000..79dbb32
--- /dev/null
+++ b/libretro/libretro-common/include/retro_assert.h
@@ -0,0 +1,35 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (retro_assert.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 __RETRO_ASSERT_H
+#define __RETRO_ASSERT_H
+
+#include <assert.h>
+
+#ifdef RARCH_INTERNAL
+#include <stdio.h>
+#define retro_assert(cond) ((void)( (cond) || (printf("Assertion failed at %s:%d.\n", __FILE__, __LINE__), abort(), 0) ))
+#else
+#define retro_assert(cond) assert(cond)
+#endif
+
+#endif
diff --git a/libretro/libretro-common/include/retro_common_api.h b/libretro/libretro-common/include/retro_common_api.h
new file mode 100644
index 0000000..0f68b7d
--- /dev/null
+++ b/libretro/libretro-common/include/retro_common_api.h
@@ -0,0 +1,119 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (retro_common_api.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_COMMON_RETRO_COMMON_API_H
+#define _LIBRETRO_COMMON_RETRO_COMMON_API_H
+
+/*
+This file is designed to normalize the libretro-common compiling environment
+for public API headers. This should be leaner than a normal compiling environment,
+since it gets #included into other project's sources.
+*/
+
+/* ------------------------------------ */
+
+/*
+Ordinarily we want to put #ifdef __cplusplus extern "C" in C library
+headers to enable them to get used by c++ sources.
+However, we want to support building this library as C++ as well, so a
+special technique is called for.
+*/
+
+#define RETRO_BEGIN_DECLS
+#define RETRO_END_DECLS
+
+#ifdef __cplusplus
+
+#ifdef CXX_BUILD
+/* build wants everything to be built as c++, so no extern "C" */
+#else
+#undef RETRO_BEGIN_DECLS
+#undef RETRO_END_DECLS
+#define RETRO_BEGIN_DECLS extern "C" {
+#define RETRO_END_DECLS }
+#endif
+
+#else
+
+/* header is included by a C source file, so no extern "C" */
+
+#endif
+
+/*
+IMO, this non-standard ssize_t should not be used.
+However, it's a good example of how to handle something like this.
+*/
+#ifdef _MSC_VER
+#ifndef HAVE_SSIZE_T
+#define HAVE_SSIZE_T
+#if defined(_WIN64)
+typedef __int64 ssize_t;
+#elif defined(_WIN32)
+typedef int ssize_t;
+#endif
+#endif
+#elif defined(__MACH__)
+#include <sys/types.h>
+#endif
+
+#ifdef _MSC_VER
+#if _MSC_VER >= 1800
+#include <inttypes.h>
+#else
+#ifndef PRId64
+#define PRId64 "I64d"
+#define PRIu64 "I64u"
+#define PRIuPTR "Iu"
+#endif
+#endif
+#else
+/* C++11 says this one isn't needed, but apparently (some versions of) mingw require it anyways */
+/* https://stackoverflow.com/questions/8132399/how-to-printf-uint64-t-fails-with-spurious-trailing-in-format */
+/* https://github.com/libretro/RetroArch/issues/6009 */
+#ifndef __STDC_FORMAT_MACROS
+#define __STDC_FORMAT_MACROS 1
+#endif
+#include <inttypes.h>
+#endif
+#ifndef PRId64
+#error "inttypes.h is being screwy"
+#endif
+#define STRING_REP_INT64 "%" PRId64
+#define STRING_REP_UINT64 "%" PRIu64
+#define STRING_REP_USIZE "%" PRIuPTR
+
+/*
+I would like to see retro_inline.h moved in here; possibly boolean too.
+
+rationale: these are used in public APIs, and it is easier to find problems
+and write code that works the first time portably when theyre included uniformly
+than to do the analysis from scratch each time you think you need it, for each feature.
+
+Moreover it helps force you to make hard decisions: if you EVER bring in boolean.h,
+then you should pay the price everywhere, so you can see how much grief it will cause.
+
+Of course, another school of thought is that you should do as little damage as possible
+in as few places as possible...
+*/
+
+/* _LIBRETRO_COMMON_RETRO_COMMON_API_H */
+#endif
diff --git a/libretro/libretro-common/include/retro_environment.h b/libretro/libretro-common/include/retro_environment.h
new file mode 100644
index 0000000..1389eb5
--- /dev/null
+++ b/libretro/libretro-common/include/retro_environment.h
@@ -0,0 +1,114 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (retro_environment.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_ENVIRONMENT_H
+#define __LIBRETRO_SDK_ENVIRONMENT_H
+
+/*
+This file is designed to create a normalized environment for compiling
+libretro-common's private implementations, or any other sources which might
+enjoy use of it's environment (RetroArch for instance).
+This should be an elaborately crafted environment so that sources don't
+need to be full of platform-specific workarounds.
+*/
+
+#if defined (__cplusplus)
+#if 0
+printf("This is C++, version %d.\n", __cplusplus);
+#endif
+/* The expected values would be
+ *   199711L, for ISO/IEC 14882:1998 or 14882:2003
+ */
+
+#elif defined(__STDC__)
+/* This is standard C. */
+
+#if (__STDC__ == 1)
+/* The implementation is ISO-conforming. */
+#define __STDC_ISO__
+#else
+/* The implementation is not ISO-conforming. */
+#endif
+
+#if defined(__STDC_VERSION__)
+#if (__STDC_VERSION__ >= 201112L)
+/* This is C11. */
+#define __STDC_C11__
+#elif (__STDC_VERSION__ >= 199901L)
+/* This is C99. */
+#define __STDC_C99__
+#elif (__STDC_VERSION__ >= 199409L)
+/* This is C89 with amendment 1. */
+#define __STDC_C89__
+#define __STDC_C89_AMENDMENT_1__
+#else
+/* This is C89 without amendment 1. */
+#define __STDC_C89__
+#endif
+#else /* !defined(__STDC_VERSION__) */
+/* This is C89. __STDC_VERSION__ is not defined. */
+#define __STDC_C89__
+#endif
+
+#else   /* !defined(__STDC__) */
+/* This is not standard C. __STDC__ is not defined. */
+#endif
+
+#if defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__) || defined(__MINGW32__)
+/* Try to find out if we're compiling for WinRT or non-WinRT */
+#if defined(_MSC_VER) && defined(__has_include)
+#if __has_include(<winapifamily.h>)
+#define HAVE_WINAPIFAMILY_H 1
+#else
+#define HAVE_WINAPIFAMILY_H 0
+#endif
+
+/* If _USING_V110_SDK71_ is defined it means we are using the Windows XP toolset. */
+#elif defined(_MSC_VER) && (_MSC_VER >= 1700 && !_USING_V110_SDK71_)    /* _MSC_VER == 1700 for Visual Studio 2012 */
+#define HAVE_WINAPIFAMILY_H 1
+#else
+#define HAVE_WINAPIFAMILY_H 0
+#endif
+
+#if HAVE_WINAPIFAMILY_H
+#include <winapifamily.h>
+#define WINAPI_FAMILY_WINRT (!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP))
+#else
+#define WINAPI_FAMILY_WINRT 0
+#endif /* HAVE_WINAPIFAMILY_H */
+
+#if WINAPI_FAMILY_WINRT
+#undef __WINRT__
+#define __WINRT__ 1
+#endif
+
+/* MSVC obviously has to have some non-standard constants... */
+#if _M_IX86_FP == 1
+#define __SSE__ 1
+#elif _M_IX86_FP == 2 || (defined(_M_AMD64) || defined(_M_X64))
+#define __SSE__ 1
+#define __SSE2__ 1
+#endif
+
+#endif
+
+#endif
diff --git a/libretro/libretro-common/include/retro_inline.h b/libretro/libretro-common/include/retro_inline.h
new file mode 100644
index 0000000..b27d6dd
--- /dev/null
+++ b/libretro/libretro-common/include/retro_inline.h
@@ -0,0 +1,39 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (retro_inline.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_INLINE_H
+#define __LIBRETRO_SDK_INLINE_H
+
+#ifndef INLINE
+
+#if defined(_WIN32) || defined(__INTEL_COMPILER)
+#define INLINE __inline
+#elif defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L
+#define INLINE inline
+#elif defined(__GNUC__)
+#define INLINE __inline__
+#else
+#define INLINE
+#endif
+
+#endif
+#endif
diff --git a/libretro/libretro-common/include/retro_miscellaneous.h b/libretro/libretro-common/include/retro_miscellaneous.h
new file mode 100644
index 0000000..f0dfb5c
--- /dev/null
+++ b/libretro/libretro-common/include/retro_miscellaneous.h
@@ -0,0 +1,203 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (retro_miscellaneous.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 __RARCH_MISCELLANEOUS_H
+#define __RARCH_MISCELLANEOUS_H
+
+#define RARCH_MAX_SUBSYSTEMS 10
+#define RARCH_MAX_SUBSYSTEM_ROMS 10
+
+#include <stdint.h>
+#include <boolean.h>
+#include <retro_inline.h>
+
+#if defined(_WIN32)
+
+#if defined(_XBOX)
+#include <Xtl.h>
+#else
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#endif
+
+#endif
+
+#include <limits.h>
+
+#ifdef _MSC_VER
+#include <compat/msvc.h>
+#endif
+
+static INLINE void bits_or_bits(uint32_t *a, uint32_t *b, uint32_t count)
+{
+   uint32_t i;
+   for (i = 0; i < count;i++)
+      a[i] |= b[i];
+}
+
+static INLINE void bits_clear_bits(uint32_t *a, uint32_t *b, uint32_t count)
+{
+   uint32_t i;
+   for (i = 0; i < count;i++)
+      a[i] &= ~b[i];
+}
+
+static INLINE bool bits_any_set(uint32_t* ptr, uint32_t count)
+{
+   uint32_t i;
+   for (i = 0; i < count; i++)
+   {
+      if (ptr[i] != 0)
+         return true;
+   }
+   return false;
+}
+
+#ifndef PATH_MAX_LENGTH
+#if defined(_XBOX1) || defined(_3DS) || defined(PSP) || defined(PS2) || defined(GEKKO)|| defined(WIIU) || defined(ORBIS) || defined(__PSL1GHT__) || defined(__PS3__)
+#define PATH_MAX_LENGTH 512
+#else
+#define PATH_MAX_LENGTH 4096
+#endif
+#endif
+
+#ifndef MAX
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#endif
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#define ARRAY_SIZE(a)              (sizeof(a) / sizeof((a)[0]))
+
+#define BITS_GET_ELEM(a, i)        ((a).data[i])
+#define BITS_GET_ELEM_PTR(a, i)    ((a)->data[i])
+
+#define BIT_SET(a, bit)   ((a)[(bit) >> 3] |=  (1 << ((bit) & 7)))
+#define BIT_CLEAR(a, bit) ((a)[(bit) >> 3] &= ~(1 << ((bit) & 7)))
+#define BIT_GET(a, bit)   (((a)[(bit) >> 3] >> ((bit) & 7)) & 1)
+
+#define BIT16_SET(a, bit)    ((a) |=  (1 << ((bit) & 15)))
+#define BIT16_CLEAR(a, bit)  ((a) &= ~(1 << ((bit) & 15)))
+#define BIT16_GET(a, bit)    (((a) >> ((bit) & 15)) & 1)
+#define BIT16_CLEAR_ALL(a)   ((a) = 0)
+
+#define BIT32_SET(a, bit)    ((a) |=  (UINT32_C(1) << ((bit) & 31)))
+#define BIT32_CLEAR(a, bit)  ((a) &= ~(UINT32_C(1) << ((bit) & 31)))
+#define BIT32_GET(a, bit)    (((a) >> ((bit) & 31)) & 1)
+#define BIT32_CLEAR_ALL(a)   ((a) = 0)
+
+#define BIT64_SET(a, bit)    ((a) |=  (UINT64_C(1) << ((bit) & 63)))
+#define BIT64_CLEAR(a, bit)  ((a) &= ~(UINT64_C(1) << ((bit) & 63)))
+#define BIT64_GET(a, bit)    (((a) >> ((bit) & 63)) & 1)
+#define BIT64_CLEAR_ALL(a)   ((a) = 0)
+
+#define BIT128_SET(a, bit)   ((a).data[(bit) >> 5] |=  (UINT32_C(1) << ((bit) & 31)))
+#define BIT128_CLEAR(a, bit) ((a).data[(bit) >> 5] &= ~(UINT32_C(1) << ((bit) & 31)))
+#define BIT128_GET(a, bit)   (((a).data[(bit) >> 5] >> ((bit) & 31)) & 1)
+#define BIT128_CLEAR_ALL(a)  memset(&(a), 0, sizeof(a))
+
+#define BIT128_SET_PTR(a, bit)   BIT128_SET(*a, bit)
+#define BIT128_CLEAR_PTR(a, bit) BIT128_CLEAR(*a, bit)
+#define BIT128_GET_PTR(a, bit)   BIT128_GET(*a, bit)
+#define BIT128_CLEAR_ALL_PTR(a)  BIT128_CLEAR_ALL(*a)
+
+#define BIT256_SET(a, bit)       BIT128_SET(a, bit)
+#define BIT256_CLEAR(a, bit)     BIT128_CLEAR(a, bit)
+#define BIT256_GET(a, bit)       BIT128_GET(a, bit)
+#define BIT256_CLEAR_ALL(a)      BIT128_CLEAR_ALL(a)
+
+#define BIT256_SET_PTR(a, bit)   BIT256_SET(*a, bit)
+#define BIT256_CLEAR_PTR(a, bit) BIT256_CLEAR(*a, bit)
+#define BIT256_GET_PTR(a, bit)   BIT256_GET(*a, bit)
+#define BIT256_CLEAR_ALL_PTR(a)  BIT256_CLEAR_ALL(*a)
+
+#define BIT512_SET(a, bit)       BIT256_SET(a, bit)
+#define BIT512_CLEAR(a, bit)     BIT256_CLEAR(a, bit)
+#define BIT512_GET(a, bit)       BIT256_GET(a, bit)
+#define BIT512_CLEAR_ALL(a)      BIT256_CLEAR_ALL(a)
+
+#define BIT512_SET_PTR(a, bit)   BIT512_SET(*a, bit)
+#define BIT512_CLEAR_PTR(a, bit) BIT512_CLEAR(*a, bit)
+#define BIT512_GET_PTR(a, bit)   BIT512_GET(*a, bit)
+#define BIT512_CLEAR_ALL_PTR(a)  BIT512_CLEAR_ALL(*a)
+
+#define BITS_COPY16_PTR(a,bits) \
+{ \
+   BIT128_CLEAR_ALL_PTR(a); \
+   BITS_GET_ELEM_PTR(a, 0) = (bits) & 0xffff; \
+}
+
+#define BITS_COPY32_PTR(a,bits) \
+{ \
+   BIT128_CLEAR_ALL_PTR(a); \
+   BITS_GET_ELEM_PTR(a, 0) = (bits); \
+}
+
+#define BITS_COPY64_PTR(a,bits) \
+{ \
+   BIT128_CLEAR_ALL_PTR(a); \
+   BITS_GET_ELEM_PTR(a, 0) = (bits); \
+   BITS_GET_ELEM_PTR(a, 1) = (bits >> 32); \
+}
+
+/* Helper macros and struct to keep track of many booleans. */
+/* This struct has 256 bits. */
+typedef struct
+{
+   uint32_t data[8];
+} retro_bits_t;
+
+/* This struct has 512 bits. */
+typedef struct
+{
+   uint32_t data[16];
+} retro_bits_512_t;
+
+#ifdef _WIN32
+#  ifdef _WIN64
+#    define PRI_SIZET PRIu64
+#  else
+#    if _MSC_VER == 1800
+#      define PRI_SIZET PRIu32
+#    else
+#      define PRI_SIZET "u"
+#    endif
+#  endif
+#elif defined(PS2)
+#  define PRI_SIZET "u"
+#else
+#  if (SIZE_MAX == 0xFFFF)
+#    define PRI_SIZET "hu"
+#  elif (SIZE_MAX == 0xFFFFFFFF)
+#    define PRI_SIZET "u"
+#  elif (SIZE_MAX == 0xFFFFFFFFFFFFFFFF)
+#    define PRI_SIZET "lu"
+#  else
+#    error PRI_SIZET: unknown SIZE_MAX
+#  endif
+#endif
+
+#endif
diff --git a/libretro/libretro-common/include/streams/file_stream.h b/libretro/libretro-common/include/streams/file_stream.h
new file mode 100644
index 0000000..ab198b2
--- /dev/null
+++ b/libretro/libretro-common/include/streams/file_stream.h
@@ -0,0 +1,115 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (file_stream.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_FILE_STREAM_H
+#define __LIBRETRO_SDK_FILE_STREAM_H
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stddef.h>
+
+#include <sys/types.h>
+
+#include <libretro.h>
+#include <retro_common_api.h>
+#include <retro_inline.h>
+#include <boolean.h>
+
+#include <stdarg.h>
+#include <vfs/vfs_implementation.h>
+
+#define FILESTREAM_REQUIRED_VFS_VERSION 2
+
+RETRO_BEGIN_DECLS
+
+typedef struct RFILE RFILE;
+
+#define FILESTREAM_REQUIRED_VFS_VERSION 2
+
+void filestream_vfs_init(const struct retro_vfs_interface_info* vfs_info);
+
+int64_t filestream_get_size(RFILE *stream);
+
+int64_t filestream_truncate(RFILE *stream, int64_t length);
+
+/**
+ * filestream_open:
+ * @path               : path to file
+ * @mode               : file mode to use when opening (read/write)
+ * @bufsize            : optional buffer size (-1 or 0 to use default)
+ *
+ * Opens a file for reading or writing, depending on the requested mode.
+ * Returns a pointer to an RFILE if opened successfully, otherwise NULL.
+ **/
+RFILE* filestream_open(const char *path, unsigned mode, unsigned hints);
+
+int64_t filestream_seek(RFILE *stream, int64_t offset, int seek_position);
+
+int64_t filestream_read(RFILE *stream, void *data, int64_t len);
+
+int64_t filestream_write(RFILE *stream, const void *data, int64_t len);
+
+int64_t filestream_tell(RFILE *stream);
+
+void filestream_rewind(RFILE *stream);
+
+int filestream_close(RFILE *stream);
+
+int64_t filestream_read_file(const char *path, void **buf, int64_t *len);
+
+char* filestream_gets(RFILE *stream, char *s, size_t len);
+
+int filestream_getc(RFILE *stream);
+
+int filestream_scanf(RFILE *stream, const char* format, ...);
+
+int filestream_eof(RFILE *stream);
+
+bool filestream_write_file(const char *path, const void *data, int64_t size);
+
+int filestream_putc(RFILE *stream, int c);
+
+int filestream_vprintf(RFILE *stream, const char* format, va_list args);
+
+int filestream_printf(RFILE *stream, const char* format, ...);
+
+int filestream_error(RFILE *stream);
+
+int filestream_flush(RFILE *stream);
+
+int filestream_delete(const char *path);
+
+int filestream_rename(const char *old_path, const char *new_path);
+
+const char* filestream_get_path(RFILE *stream);
+
+bool filestream_exists(const char *path);
+
+/* Returned pointer must be freed by the caller. */
+char* filestream_getline(RFILE *stream);
+
+libretro_vfs_implementation_file* filestream_get_vfs_handle(RFILE *stream);
+
+RETRO_END_DECLS
+
+#endif
diff --git a/libretro/libretro-common/include/string/stdstring.h b/libretro/libretro-common/include/string/stdstring.h
new file mode 100644
index 0000000..e7087d6
--- /dev/null
+++ b/libretro/libretro-common/include/string/stdstring.h
@@ -0,0 +1,250 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (stdstring.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_STDSTRING_H
+#define __LIBRETRO_SDK_STDSTRING_H
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <ctype.h>
+#include <string.h>
+#include <boolean.h>
+
+#include <retro_common_api.h>
+#include <retro_inline.h>
+#include <compat/strl.h>
+
+RETRO_BEGIN_DECLS
+
+#define STRLEN_CONST(x)                   ((sizeof((x))-1))
+
+#define strcpy_literal(a, b)              strcpy(a, b)
+
+#define string_is_not_equal(a, b)         !string_is_equal((a), (b))
+
+#define string_is_not_equal_fast(a, b, size) (memcmp(a, b, size) != 0)
+#define string_is_equal_fast(a, b, size)     (memcmp(a, b, size) == 0)
+
+#define TOLOWER(c)   ((c) |  (lr_char_props[(unsigned char)(c)] & 0x20))
+#define TOUPPER(c)   ((c) & ~(lr_char_props[(unsigned char)(c)] & 0x20))
+
+/* C standard says \f \v are space, but this one disagrees */
+#define ISSPACE(c)   (lr_char_props[(unsigned char)(c)] & 0x80) 
+
+#define ISDIGIT(c)   (lr_char_props[(unsigned char)(c)] & 0x40)
+#define ISALPHA(c)   (lr_char_props[(unsigned char)(c)] & 0x20)
+#define ISLOWER(c)   (lr_char_props[(unsigned char)(c)] & 0x04)
+#define ISUPPER(c)   (lr_char_props[(unsigned char)(c)] & 0x02)
+#define ISALNUM(c)   (lr_char_props[(unsigned char)(c)] & 0x60)
+#define ISUALPHA(c)  (lr_char_props[(unsigned char)(c)] & 0x28)
+#define ISUALNUM(c)  (lr_char_props[(unsigned char)(c)] & 0x68)
+#define IS_XDIGIT(c) (lr_char_props[(unsigned char)(c)] & 0x01)
+
+/* Deprecated alias, all callers should use string_is_equal_case_insensitive instead */
+#define string_is_equal_noncase string_is_equal_case_insensitive
+
+static INLINE bool string_is_empty(const char *data)
+{
+   return !data || (*data == '\0');
+}
+
+static INLINE bool string_is_equal(const char *a, const char *b)
+{
+   return (a && b) ? !strcmp(a, b) : false;
+}
+
+static INLINE bool string_starts_with_size(const char *str, const char *prefix,
+      size_t size)
+{
+   return (str && prefix) ? !strncmp(prefix, str, size) : false;
+}
+
+static INLINE bool string_starts_with(const char *str, const char *prefix)
+{
+   return (str && prefix) ? !strncmp(prefix, str, strlen(prefix)) : false;
+}
+
+static INLINE bool string_ends_with_size(const char *str, const char *suffix,
+      size_t str_len, size_t suffix_len)
+{
+   return (str_len < suffix_len) ? false :
+         !memcmp(suffix, str + (str_len - suffix_len), suffix_len);
+}
+
+static INLINE bool string_ends_with(const char *str, const char *suffix)
+{
+   if (!str || !suffix)
+      return false;
+   return string_ends_with_size(str, suffix, strlen(str), strlen(suffix));
+}
+
+/* Returns the length of 'str' (c.f. strlen()), but only
+ * checks the first 'size' characters
+ * - If 'str' is NULL, returns 0
+ * - If 'str' is not NULL and no '\0' character is found
+ *   in the first 'size' characters, returns 'size' */
+static INLINE size_t strlen_size(const char *str, size_t size)
+{
+   size_t i = 0;
+   if (str)
+      while (i < size && str[i]) i++;
+   return i;
+}
+
+
+static INLINE bool string_is_equal_case_insensitive(const char *a,
+      const char *b)
+{
+   int result              = 0;
+   const unsigned char *p1 = (const unsigned char*)a;
+   const unsigned char *p2 = (const unsigned char*)b;
+
+   if (!a || !b)
+      return false;
+   if (p1 == p2)
+      return true;
+
+   while ((result = tolower (*p1) - tolower (*p2++)) == 0)
+      if (*p1++ == '\0')
+         break;
+
+   return (result == 0);
+}
+
+char *string_to_upper(char *s);
+
+char *string_to_lower(char *s);
+
+char *string_ucwords(char *s);
+
+char *string_replace_substring(const char *in, const char *pattern,
+      const char *by);
+
+/* Remove leading whitespaces */
+char *string_trim_whitespace_left(char *const s);
+
+/* Remove trailing whitespaces */
+char *string_trim_whitespace_right(char *const s);
+
+/* Remove leading and trailing whitespaces */
+char *string_trim_whitespace(char *const s);
+
+/*
+ * Wraps string specified by 'src' to destination buffer
+ * specified by 'dst' and 'dst_size'.
+ * This function assumes that all glyphs in the string
+ * have an on-screen pixel width similar to that of
+ * regular Latin characters - i.e. it will not wrap
+ * correctly any text containing so-called 'wide' Unicode
+ * characters (e.g. CJK languages, emojis, etc.).
+ *
+ * @param dst             pointer to destination buffer.
+ * @param dst_size        size of destination buffer.
+ * @param src             pointer to input string.
+ * @param line_width      max number of characters per line.
+ * @param wideglyph_width not used, but is necessary to keep
+ *                        compatibility with word_wrap_wideglyph().
+ * @param max_lines       max lines of destination string.
+ *                        0 means no limit.
+ */
+void word_wrap(char *dst, size_t dst_size, const char *src,
+      int line_width, int wideglyph_width, unsigned max_lines);
+
+/*
+ * Wraps string specified by 'src' to destination buffer
+ * specified by 'dst' and 'dst_size'.
+ * This function assumes that all glyphs in the string
+ * are:
+ * - EITHER 'non-wide' Unicode glyphs, with an on-screen
+ *   pixel width similar to that of regular Latin characters
+ * - OR 'wide' Unicode glyphs (e.g. CJK languages, emojis, etc.)
+ *   with an on-screen pixel width defined by 'wideglyph_width'
+ * Note that wrapping may occur in inappropriate locations
+ * if 'src' string contains 'wide' Unicode characters whose
+ * on-screen pixel width deviates greatly from the set
+ * 'wideglyph_width' value.
+ *
+ * @param dst             pointer to destination buffer.
+ * @param dst_size        size of destination buffer.
+ * @param src             pointer to input string.
+ * @param line_width      max number of characters per line.
+ * @param wideglyph_width effective width of 'wide' Unicode glyphs.
+ *                        the value here is normalised relative to the
+ *                        typical on-screen pixel width of a regular
+ *                        Latin character:
+ *                        - a regular Latin character is defined to
+ *                          have an effective width of 100
+ *                        - wideglyph_width = 100 * (wide_character_pixel_width / latin_character_pixel_width)
+ *                        - e.g. if 'wide' Unicode characters in 'src'
+ *                          have an on-screen pixel width twice that of
+ *                          regular Latin characters, wideglyph_width
+ *                          would be 200
+ * @param max_lines       max lines of destination string.
+ *                        0 means no limit.
+ */
+void word_wrap_wideglyph(char *dst, size_t dst_size, const char *src,
+      int line_width, int wideglyph_width, unsigned max_lines);
+
+/* Splits string into tokens seperated by 'delim'
+ * > Returned token string must be free()'d
+ * > Returns NULL if token is not found
+ * > After each call, 'str' is set to the position after the
+ *   last found token
+ * > Tokens *include* empty strings
+ * Usage example:
+ *    char *str      = "1,2,3,4,5,6,7,,,10,";
+ *    char **str_ptr = &str;
+ *    char *token    = NULL;
+ *    while ((token = string_tokenize(str_ptr, ",")))
+ *    {
+ *        printf("%s\n", token);
+ *        free(token);
+ *        token = NULL;
+ *    }
+ */
+char* string_tokenize(char **str, const char *delim);
+
+/* Removes every instance of character 'c' from 'str' */
+void string_remove_all_chars(char *str, char c);
+
+/* Replaces every instance of character 'find' in 'str'
+ * with character 'replace' */
+void string_replace_all_chars(char *str, char find, char replace);
+
+/* Converts string to unsigned integer.
+ * Returns 0 if string is invalid  */
+unsigned string_to_unsigned(const char *str);
+
+/* Converts hexadecimal string to unsigned integer.
+ * Handles optional leading '0x'.
+ * Returns 0 if string is invalid  */
+unsigned string_hex_to_unsigned(const char *str);
+
+char *string_init(const char *src);
+
+void string_set(char **string, const char *src);
+
+extern const unsigned char lr_char_props[256];
+
+RETRO_END_DECLS
+
+#endif
diff --git a/libretro/libretro-common/include/time/rtime.h b/libretro/libretro-common/include/time/rtime.h
new file mode 100644
index 0000000..7629c1e
--- /dev/null
+++ b/libretro/libretro-common/include/time/rtime.h
@@ -0,0 +1,48 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (rtime.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_RTIME_H__
+#define __LIBRETRO_SDK_RTIME_H__
+
+#include <retro_common_api.h>
+
+#include <stdint.h>
+#include <stddef.h>
+#include <time.h>
+
+RETRO_BEGIN_DECLS
+
+/* TODO/FIXME: Move all generic time handling functions
+ * to this file */
+
+/* Must be called before using rtime_localtime() */
+void rtime_init(void);
+
+/* Must be called upon program termination */
+void rtime_deinit(void);
+
+/* Thread-safe wrapper for localtime() */
+struct tm *rtime_localtime(const time_t *timep, struct tm *result);
+
+RETRO_END_DECLS
+
+#endif
diff --git a/libretro/libretro-common/include/vfs/vfs.h b/libretro/libretro-common/include/vfs/vfs.h
new file mode 100644
index 0000000..5366f33
--- /dev/null
+++ b/libretro/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 <retro_common_api.h>
+#include <boolean.h>
+
+#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/libretro-common/include/vfs/vfs_implementation.h b/libretro/libretro-common/include/vfs/vfs_implementation.h
new file mode 100644
index 0000000..c7d6bb0
--- /dev/null
+++ b/libretro/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 <stdio.h>
+#include <stdint.h>
+#include <libretro.h>
+#include <retro_environment.h>
+#include <vfs/vfs.h>
+
+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
diff --git a/libretro/libretro-common/streams/file_stream.c b/libretro/libretro-common/streams/file_stream.c
new file mode 100644
index 0000000..c434237
--- /dev/null
+++ b/libretro/libretro-common/streams/file_stream.c
@@ -0,0 +1,663 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (file_stream.c).
+ * ---------------------------------------------------------------------------------------
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <errno.h>
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef _MSC_VER
+#include <compat/msvc.h>
+#endif
+
+#include <string/stdstring.h>
+#include <streams/file_stream.h>
+#define VFS_FRONTEND
+#include <vfs/vfs_implementation.h>
+
+#define VFS_ERROR_RETURN_VALUE -1
+
+struct RFILE
+{
+   struct retro_vfs_file_handle *hfile;
+	bool error_flag;
+	bool eof_flag;
+};
+
+static retro_vfs_get_path_t filestream_get_path_cb = NULL;
+static retro_vfs_open_t filestream_open_cb         = NULL;
+static retro_vfs_close_t filestream_close_cb       = NULL;
+static retro_vfs_size_t filestream_size_cb         = NULL;
+static retro_vfs_truncate_t filestream_truncate_cb = NULL;
+static retro_vfs_tell_t filestream_tell_cb         = NULL;
+static retro_vfs_seek_t filestream_seek_cb         = NULL;
+static retro_vfs_read_t filestream_read_cb         = NULL;
+static retro_vfs_write_t filestream_write_cb       = NULL;
+static retro_vfs_flush_t filestream_flush_cb       = NULL;
+static retro_vfs_remove_t filestream_remove_cb     = NULL;
+static retro_vfs_rename_t filestream_rename_cb     = NULL;
+
+/* VFS Initialization */
+
+void filestream_vfs_init(const struct retro_vfs_interface_info* vfs_info)
+{
+   const struct retro_vfs_interface *
+      vfs_iface           = vfs_info->iface;
+
+   filestream_get_path_cb = NULL;
+   filestream_open_cb     = NULL;
+   filestream_close_cb    = NULL;
+   filestream_tell_cb     = NULL;
+   filestream_size_cb     = NULL;
+   filestream_truncate_cb = NULL;
+   filestream_seek_cb     = NULL;
+   filestream_read_cb     = NULL;
+   filestream_write_cb    = NULL;
+   filestream_flush_cb    = NULL;
+   filestream_remove_cb   = NULL;
+   filestream_rename_cb   = NULL;
+
+   if (
+             (vfs_info->required_interface_version < 
+             FILESTREAM_REQUIRED_VFS_VERSION)
+         || !vfs_iface)
+      return;
+
+   filestream_get_path_cb = vfs_iface->get_path;
+   filestream_open_cb     = vfs_iface->open;
+   filestream_close_cb    = vfs_iface->close;
+   filestream_size_cb     = vfs_iface->size;
+   filestream_truncate_cb = vfs_iface->truncate;
+   filestream_tell_cb     = vfs_iface->tell;
+   filestream_seek_cb     = vfs_iface->seek;
+   filestream_read_cb     = vfs_iface->read;
+   filestream_write_cb    = vfs_iface->write;
+   filestream_flush_cb    = vfs_iface->flush;
+   filestream_remove_cb   = vfs_iface->remove;
+   filestream_rename_cb   = vfs_iface->rename;
+}
+
+/* Callback wrappers */
+bool filestream_exists(const char *path)
+{
+   RFILE *dummy           = NULL;
+
+   if (!path || !*path)
+      return false;
+
+   dummy                  = filestream_open(
+         path,
+         RETRO_VFS_FILE_ACCESS_READ,
+         RETRO_VFS_FILE_ACCESS_HINT_NONE);
+
+   if (!dummy)
+      return false;
+
+   if (filestream_close(dummy) != 0)
+      if (dummy)
+         free(dummy);
+
+   dummy = NULL;
+   return true;
+}
+
+int64_t filestream_get_size(RFILE *stream)
+{
+   int64_t output;
+
+   if (filestream_size_cb)
+      output = filestream_size_cb(stream->hfile);
+   else
+      output = retro_vfs_file_size_impl(
+            (libretro_vfs_implementation_file*)stream->hfile);
+
+   if (output == VFS_ERROR_RETURN_VALUE)
+      stream->error_flag = true;
+
+   return output;
+}
+
+int64_t filestream_truncate(RFILE *stream, int64_t length)
+{
+   int64_t output;
+
+   if (filestream_truncate_cb)
+      output = filestream_truncate_cb(stream->hfile, length);
+   else
+      output = retro_vfs_file_truncate_impl(
+            (libretro_vfs_implementation_file*)stream->hfile, length);
+
+   if (output == VFS_ERROR_RETURN_VALUE)
+      stream->error_flag = true;
+
+   return output;
+}
+
+/**
+ * filestream_open:
+ * @path               : path to file
+ * @mode               : file mode to use when opening (read/write)
+ * @hints              :
+ *
+ * Opens a file for reading or writing, depending on the requested mode.
+ * Returns a pointer to an RFILE if opened successfully, otherwise NULL.
+ **/
+RFILE* filestream_open(const char *path, unsigned mode, unsigned hints)
+{
+   struct retro_vfs_file_handle  *fp = NULL;
+   RFILE* output                     = NULL;
+
+   if (filestream_open_cb)
+      fp = (struct retro_vfs_file_handle*)
+         filestream_open_cb(path, mode, hints);
+   else
+      fp = (struct retro_vfs_file_handle*)
+         retro_vfs_file_open_impl(path, mode, hints);
+
+   if (!fp)
+      return NULL;
+
+   output             = (RFILE*)malloc(sizeof(RFILE));
+   output->error_flag = false;
+   output->eof_flag   = false;
+   output->hfile      = fp;
+   return output;
+}
+
+char* filestream_gets(RFILE *stream, char *s, size_t len)
+{
+   int c   = 0;
+   char *p = s;
+   if (!stream)
+      return NULL;
+
+   /* get max bytes or up to a newline */
+
+   for (len--; len > 0; len--)
+   {
+      if ((c = filestream_getc(stream)) == EOF)
+         break;
+      *p++ = c;
+      if (c == '\n')
+         break;
+   }
+   *p = 0;
+
+   if (p == s && c == EOF)
+      return NULL;
+   return (s);
+}
+
+int filestream_getc(RFILE *stream)
+{
+   char c = 0;
+   if (stream && filestream_read(stream, &c, 1) == 1)
+      return (int)(unsigned char)c;
+   return EOF;
+}
+
+int filestream_scanf(RFILE *stream, const char* format, ...)
+{
+   char buf[4096];
+   char subfmt[64];
+   va_list args;
+   const char * bufiter = buf;
+   int        ret       = 0;
+   int64_t startpos     = filestream_tell(stream);
+   int64_t maxlen       = filestream_read(stream, buf, sizeof(buf)-1);
+
+   if (maxlen <= 0)
+      return EOF;
+
+   buf[maxlen] = '\0';
+
+   va_start(args, format);
+
+   while (*format)
+   {
+      if (*format == '%')
+      {
+         int sublen;
+         char* subfmtiter = subfmt;
+         bool asterisk    = false;
+
+         *subfmtiter++    = *format++; /* '%' */
+
+         /* %[*][width][length]specifier */
+
+         if (*format == '*')
+         {
+            asterisk      = true;
+            *subfmtiter++ = *format++;
+         }
+
+         while (ISDIGIT((unsigned char)*format))
+            *subfmtiter++ = *format++; /* width */
+
+         /* length */
+         if (*format == 'h' || *format == 'l')
+         {
+            if (format[1] == format[0])
+               *subfmtiter++ = *format++;
+            *subfmtiter++    = *format++;
+         }
+         else if (
+               *format == 'j' || 
+               *format == 'z' || 
+               *format == 't' || 
+               *format == 'L')
+         {
+            *subfmtiter++ = *format++;
+         }
+
+         /* specifier - always a single character (except ]) */
+         if (*format == '[')
+         {
+            while (*format != ']')
+               *subfmtiter++ = *format++;
+            *subfmtiter++    = *format++;
+         }
+         else
+            *subfmtiter++    = *format++;
+
+         *subfmtiter++       = '%';
+         *subfmtiter++       = 'n';
+         *subfmtiter++       = '\0';
+
+         if (sizeof(void*) != sizeof(long*))
+            abort(); /* all pointers must have the same size */
+
+         if (asterisk)
+         {
+            int v = sscanf(bufiter, subfmt, &sublen);
+            if (v == EOF)
+               return EOF;
+            if (v != 0)
+               break;
+         }
+         else
+         {
+            int v = sscanf(bufiter, subfmt, va_arg(args, void*), &sublen);
+            if (v == EOF)
+               return EOF;
+            if (v != 1)
+               break;
+         }
+
+         ret++;
+         bufiter += sublen;
+      }
+      else if (isspace((unsigned char)*format))
+      {
+         while (isspace((unsigned char)*bufiter))
+            bufiter++;
+         format++;
+      }
+      else
+      {
+         if (*bufiter != *format)
+            break;
+         bufiter++;
+         format++;
+      }
+   }
+
+   va_end(args);
+   filestream_seek(stream, startpos+(bufiter-buf),
+         RETRO_VFS_SEEK_POSITION_START);
+
+   return ret;
+}
+
+int64_t filestream_seek(RFILE *stream, int64_t offset, int seek_position)
+{
+   int64_t output;
+
+   if (filestream_seek_cb)
+      output = filestream_seek_cb(stream->hfile, offset, seek_position);
+   else
+      output = retro_vfs_file_seek_impl(
+            (libretro_vfs_implementation_file*)stream->hfile,
+            offset, seek_position);
+
+   if (output == VFS_ERROR_RETURN_VALUE)
+      stream->error_flag = true;
+
+   stream->eof_flag      = false;
+
+   return output;
+}
+
+int filestream_eof(RFILE *stream)
+{
+   return stream->eof_flag;
+}
+
+int64_t filestream_tell(RFILE *stream)
+{
+   int64_t output;
+
+   if (filestream_size_cb)
+      output = filestream_tell_cb(stream->hfile);
+   else
+      output = retro_vfs_file_tell_impl(
+            (libretro_vfs_implementation_file*)stream->hfile);
+
+   if (output == VFS_ERROR_RETURN_VALUE)
+      stream->error_flag = true;
+
+   return output;
+}
+
+void filestream_rewind(RFILE *stream)
+{
+   if (!stream)
+      return;
+   filestream_seek(stream, 0L, RETRO_VFS_SEEK_POSITION_START);
+   stream->error_flag = false;
+   stream->eof_flag   = false;
+}
+
+int64_t filestream_read(RFILE *stream, void *s, int64_t len)
+{
+   int64_t output;
+
+   if (filestream_read_cb)
+      output = filestream_read_cb(stream->hfile, s, len);
+   else
+      output = retro_vfs_file_read_impl(
+            (libretro_vfs_implementation_file*)stream->hfile, s, len);
+
+   if (output == VFS_ERROR_RETURN_VALUE)
+      stream->error_flag = true;
+   if (output < len)
+      stream->eof_flag   = true;
+
+   return output;
+}
+
+int filestream_flush(RFILE *stream)
+{
+   int output;
+
+   if (filestream_flush_cb)
+      output = filestream_flush_cb(stream->hfile);
+   else
+      output = retro_vfs_file_flush_impl(
+            (libretro_vfs_implementation_file*)stream->hfile);
+
+   if (output == VFS_ERROR_RETURN_VALUE)
+      stream->error_flag = true;
+
+   return output;
+}
+
+int filestream_delete(const char *path)
+{
+   if (filestream_remove_cb)
+      return filestream_remove_cb(path);
+
+   return retro_vfs_file_remove_impl(path);
+}
+
+int filestream_rename(const char *old_path, const char *new_path)
+{
+   if (filestream_rename_cb)
+      return filestream_rename_cb(old_path, new_path);
+
+   return retro_vfs_file_rename_impl(old_path, new_path);
+}
+
+const char* filestream_get_path(RFILE *stream)
+{
+   if (filestream_get_path_cb)
+      return filestream_get_path_cb(stream->hfile);
+
+   return retro_vfs_file_get_path_impl(
+         (libretro_vfs_implementation_file*)stream->hfile);
+}
+
+int64_t filestream_write(RFILE *stream, const void *s, int64_t len)
+{
+   int64_t output;
+
+   if (filestream_write_cb)
+      output = filestream_write_cb(stream->hfile, s, len);
+   else
+      output = retro_vfs_file_write_impl(
+            (libretro_vfs_implementation_file*)stream->hfile, s, len);
+
+   if (output == VFS_ERROR_RETURN_VALUE)
+      stream->error_flag = true;
+
+   return output;
+}
+
+int filestream_putc(RFILE *stream, int c)
+{
+   char c_char = (char)c;
+   if (!stream)
+      return EOF;
+   return filestream_write(stream, &c_char, 1) == 1 
+      ? (int)(unsigned char)c 
+      : EOF;
+}
+
+int filestream_vprintf(RFILE *stream, const char* format, va_list args)
+{
+   static char buffer[8 * 1024];
+   int64_t num_chars = vsnprintf(buffer, sizeof(buffer),
+         format, args);
+
+   if (num_chars < 0)
+      return -1;
+   else if (num_chars == 0)
+      return 0;
+
+   return (int)filestream_write(stream, buffer, num_chars);
+}
+
+int filestream_printf(RFILE *stream, const char* format, ...)
+{
+   va_list vl;
+   int result;
+   va_start(vl, format);
+   result = filestream_vprintf(stream, format, vl);
+   va_end(vl);
+   return result;
+}
+
+int filestream_error(RFILE *stream)
+{
+   if (stream && stream->error_flag)
+      return 1;
+   return 0;
+}
+
+int filestream_close(RFILE *stream)
+{
+   int output;
+   struct retro_vfs_file_handle* fp = stream->hfile;
+
+   if (filestream_close_cb)
+      output = filestream_close_cb(fp);
+   else
+      output = retro_vfs_file_close_impl(
+            (libretro_vfs_implementation_file*)fp);
+
+   if (output == 0)
+      free(stream);
+
+   return output;
+}
+
+/**
+ * filestream_read_file:
+ * @path             : path to file.
+ * @buf              : buffer to allocate and read the contents of the
+ *                     file into. Needs to be freed manually.
+ * @len              : optional output integer containing bytes read.
+ *
+ * Read the contents of a file into @buf.
+ *
+ * Returns: non zero on success.
+ */
+int64_t filestream_read_file(const char *path, void **buf, int64_t *len)
+{
+   int64_t ret              = 0;
+   int64_t content_buf_size = 0;
+   void *content_buf        = NULL;
+   RFILE *file              = filestream_open(path,
+         RETRO_VFS_FILE_ACCESS_READ,
+         RETRO_VFS_FILE_ACCESS_HINT_NONE);
+
+   if (!file)
+   {
+      *buf = NULL;
+      return 0;
+   }
+
+   content_buf_size = filestream_get_size(file);
+
+   if (content_buf_size < 0)
+      goto error;
+
+   content_buf      = malloc((size_t)(content_buf_size + 1));
+
+   if (!content_buf)
+      goto error;
+   if ((int64_t)(uint64_t)(content_buf_size + 1) != (content_buf_size + 1))
+      goto error;
+
+   ret = filestream_read(file, content_buf, (int64_t)content_buf_size);
+   if (ret < 0)
+      goto error;
+
+   if (filestream_close(file) != 0)
+      if (file)
+         free(file);
+
+   *buf    = content_buf;
+
+   /* Allow for easy reading of strings to be safe.
+    * Will only work with sane character formatting (Unix). */
+   ((char*)content_buf)[ret] = '\0';
+
+   if (len)
+      *len = ret;
+
+   return 1;
+
+error:
+   if (file)
+      if (filestream_close(file) != 0)
+         free(file);
+   if (content_buf)
+      free(content_buf);
+   if (len)
+      *len = -1;
+   *buf = NULL;
+   return 0;
+}
+
+/**
+ * filestream_write_file:
+ * @path             : path to file.
+ * @data             : contents to write to the file.
+ * @size             : size of the contents.
+ *
+ * Writes data to a file.
+ *
+ * Returns: true (1) on success, false (0) otherwise.
+ */
+bool filestream_write_file(const char *path, const void *data, int64_t size)
+{
+   int64_t ret   = 0;
+   RFILE *file   = filestream_open(path,
+         RETRO_VFS_FILE_ACCESS_WRITE,
+         RETRO_VFS_FILE_ACCESS_HINT_NONE);
+   if (!file)
+      return false;
+
+   ret = filestream_write(file, data, size);
+   if (filestream_close(file) != 0)
+      if (file)
+         free(file);
+
+   if (ret != size)
+      return false;
+
+   return true;
+}
+
+/* Returned pointer must be freed by the caller. */
+char* filestream_getline(RFILE *stream)
+{
+   char *newline_tmp  = NULL;
+   size_t cur_size    = 8;
+   size_t idx         = 0;
+   int in             = 0;
+   char *newline      = (char*)malloc(9);
+
+   if (!stream || !newline)
+   {
+      if (newline)
+         free(newline);
+      return NULL;
+   }
+
+   in                 = filestream_getc(stream);
+
+   while (in != EOF && in != '\n')
+   {
+      if (idx == cur_size)
+      {
+         cur_size    *= 2;
+         newline_tmp  = (char*)realloc(newline, cur_size + 1);
+
+         if (!newline_tmp)
+         {
+            free(newline);
+            return NULL;
+         }
+
+         newline     = newline_tmp;
+      }
+
+      newline[idx++] = in;
+      in             = filestream_getc(stream);
+   }
+
+   newline[idx]      = '\0';
+   return newline;
+}
+
+libretro_vfs_implementation_file* filestream_get_vfs_handle(RFILE *stream)
+{
+   return (libretro_vfs_implementation_file*)stream->hfile;
+}
diff --git a/libretro/libretro-common/streams/file_stream_transforms.c b/libretro/libretro-common/streams/file_stream_transforms.c
new file mode 100644
index 0000000..099b27b
--- /dev/null
+++ b/libretro/libretro-common/streams/file_stream_transforms.c
@@ -0,0 +1,159 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+*
+* ---------------------------------------------------------------------------------------
+* The following license statement only applies to this file (file_stream_transforms.c).
+* ---------------------------------------------------------------------------------------
+*
+* 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.
+*/
+
+#include <string.h>
+#include <stdarg.h>
+
+#include <libretro.h>
+#include <streams/file_stream.h>
+
+RFILE* rfopen(const char *path, const char *mode)
+{
+   RFILE          *output  = NULL;
+   unsigned int retro_mode = RETRO_VFS_FILE_ACCESS_READ;
+   bool position_to_end    = false;
+
+   if (strstr(mode, "r"))
+   {
+      retro_mode = RETRO_VFS_FILE_ACCESS_READ;
+      if (strstr(mode, "+"))
+      {
+         retro_mode = RETRO_VFS_FILE_ACCESS_READ_WRITE |
+            RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING;
+      }
+   }
+   else if (strstr(mode, "w"))
+   {
+      retro_mode = RETRO_VFS_FILE_ACCESS_WRITE;
+      if (strstr(mode, "+"))
+         retro_mode = RETRO_VFS_FILE_ACCESS_READ_WRITE;
+   }
+   else if (strstr(mode, "a"))
+   {
+      retro_mode = RETRO_VFS_FILE_ACCESS_WRITE |
+         RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING;
+      position_to_end = true;
+      if (strstr(mode, "+"))
+      {
+         retro_mode = RETRO_VFS_FILE_ACCESS_READ_WRITE |
+            RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING;
+      }
+   }
+
+   output = filestream_open(path, retro_mode,
+         RETRO_VFS_FILE_ACCESS_HINT_NONE);
+   if (output && position_to_end)
+      filestream_seek(output, 0, RETRO_VFS_SEEK_POSITION_END);
+
+   return output;
+}
+
+int rfclose(RFILE* stream)
+{
+   return filestream_close(stream);
+}
+
+int64_t rftell(RFILE* stream)
+{
+   return filestream_tell(stream);
+}
+
+int64_t rfseek(RFILE* stream, int64_t offset, int origin)
+{
+   int seek_position = -1;
+   switch (origin)
+   {
+      case SEEK_SET:
+         seek_position = RETRO_VFS_SEEK_POSITION_START;
+         break;
+      case SEEK_CUR:
+         seek_position = RETRO_VFS_SEEK_POSITION_CURRENT;
+         break;
+      case SEEK_END:
+         seek_position = RETRO_VFS_SEEK_POSITION_END;
+         break;
+   }
+
+   return filestream_seek(stream, offset, seek_position);
+}
+
+int64_t rfread(void* buffer,
+   size_t elem_size, size_t elem_count, RFILE* stream)
+{
+   return (filestream_read(stream, buffer, elem_size * elem_count) / elem_size);
+}
+
+char *rfgets(char *buffer, int maxCount, RFILE* stream)
+{
+   return filestream_gets(stream, buffer, maxCount);
+}
+
+int rfgetc(RFILE* stream)
+{
+   return filestream_getc(stream);
+}
+
+int64_t rfwrite(void const* buffer,
+   size_t elem_size, size_t elem_count, RFILE* stream)
+{
+   return filestream_write(stream, buffer, elem_size * elem_count);
+}
+
+int rfputc(int character, RFILE * stream)
+{
+    return filestream_putc(stream, character);
+}
+
+int64_t rfflush(RFILE * stream)
+{
+    return filestream_flush(stream);
+}
+
+int rfprintf(RFILE * stream, const char * format, ...)
+{
+   int result;
+   va_list vl;
+   va_start(vl, format);
+   result = filestream_vprintf(stream, format, vl);
+   va_end(vl);
+   return result;
+}
+
+int rferror(RFILE* stream)
+{
+   return filestream_error(stream);
+}
+
+int rfeof(RFILE* stream)
+{
+   return filestream_eof(stream);
+}
+
+int rfscanf(RFILE * stream, const char * format, ...)
+{
+   int result;
+   va_list vl;
+   va_start(vl, format);
+   result = filestream_scanf(stream, format, vl);
+   va_end(vl);
+   return result;
+}
diff --git a/libretro/libretro-common/string/stdstring.c b/libretro/libretro-common/string/stdstring.c
new file mode 100644
index 0000000..d637988
--- /dev/null
+++ b/libretro/libretro-common/string/stdstring.c
@@ -0,0 +1,536 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (stdstring.c).
+ * ---------------------------------------------------------------------------------------
+ *
+ * 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.
+ */
+
+#include <stdint.h>
+#include <ctype.h>
+#include <string.h>
+
+#include <string/stdstring.h>
+#include <encodings/utf.h>
+
+const uint8_t lr_char_props[256] = {
+	/*x0   x1   x2   x3   x4   x5   x6   x7   x8   x9   xA   xB   xC   xD   xE   xF */
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x80,0x00,0x00, /* 0x                  */
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 1x                  */
+	0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 2x  !"#$%&'()*+,-./ */
+	0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x00,0x00,0x00,0x00,0x00,0x00, /* 3x 0123456789:;<=>? */
+	0x00,0x23,0x23,0x23,0x23,0x23,0x23,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22, /* 4x @ABCDEFGHIJKLMNO */
+	0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x22,0x00,0x00,0x00,0x00,0x08, /* 5x PQRSTUVWXYZ[\]^_ */
+	0x00,0x25,0x25,0x25,0x25,0x25,0x25,0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24, /* 6x `abcdefghijklmno */
+	0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x24,0x00,0x00,0x00,0x00,0x00, /* 7x pqrstuvwxyz{|}~  */
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 8x                  */
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* 9x                  */
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* Ax                  */
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* Bx                  */
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* Cx                  */
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* Dx                  */
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* Ex                  */
+	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, /* Fx                  */
+};
+
+char *string_init(const char *src)
+{
+   return src ? strdup(src) : NULL;
+}
+
+void string_set(char **string, const char *src)
+{
+   free(*string);
+   *string = string_init(src);
+}
+
+
+char *string_to_upper(char *s)
+{
+   char *cs = (char *)s;
+   for ( ; *cs != '\0'; cs++)
+      *cs = toupper((unsigned char)*cs);
+   return s;
+}
+
+char *string_to_lower(char *s)
+{
+   char *cs = (char *)s;
+   for ( ; *cs != '\0'; cs++)
+      *cs = tolower((unsigned char)*cs);
+   return s;
+}
+
+char *string_ucwords(char *s)
+{
+   char *cs = (char *)s;
+   for ( ; *cs != '\0'; cs++)
+   {
+      if (*cs == ' ')
+         *(cs+1) = toupper((unsigned char)*(cs+1));
+   }
+
+   s[0] = toupper((unsigned char)s[0]);
+   return s;
+}
+
+char *string_replace_substring(const char *in,
+      const char *pattern, const char *replacement)
+{
+   size_t numhits, pattern_len, replacement_len, outlen;
+   const char *inat   = NULL;
+   const char *inprev = NULL;
+   char          *out = NULL;
+   char        *outat = NULL;
+
+   /* if either pattern or replacement is NULL,
+    * duplicate in and let caller handle it. */
+   if (!pattern || !replacement)
+      return strdup(in);
+
+   pattern_len     = strlen(pattern);
+   replacement_len = strlen(replacement);
+   numhits         = 0;
+   inat            = in;
+
+   while ((inat = strstr(inat, pattern)))
+   {
+      inat += pattern_len;
+      numhits++;
+   }
+
+   outlen          = strlen(in) - pattern_len*numhits + replacement_len*numhits;
+   out             = (char *)malloc(outlen+1);
+
+   if (!out)
+      return NULL;
+
+   outat           = out;
+   inat            = in;
+   inprev          = in;
+
+   while ((inat = strstr(inat, pattern)))
+   {
+      memcpy(outat, inprev, inat-inprev);
+      outat += inat-inprev;
+      memcpy(outat, replacement, replacement_len);
+      outat += replacement_len;
+      inat += pattern_len;
+      inprev = inat;
+   }
+   strcpy(outat, inprev);
+
+   return out;
+}
+
+/* Remove leading whitespaces */
+char *string_trim_whitespace_left(char *const s)
+{
+   if (s && *s)
+   {
+      size_t len     = strlen(s);
+      char *current  = s;
+
+      while (*current && ISSPACE((unsigned char)*current))
+      {
+         ++current;
+         --len;
+      }
+
+      if (s != current)
+         memmove(s, current, len + 1);
+   }
+
+   return s;
+}
+
+/* Remove trailing whitespaces */
+char *string_trim_whitespace_right(char *const s)
+{
+   if (s && *s)
+   {
+      size_t len     = strlen(s);
+      char  *current = s + len - 1;
+
+      while (current != s && ISSPACE((unsigned char)*current))
+      {
+         --current;
+         --len;
+      }
+
+      current[ISSPACE((unsigned char)*current) ? 0 : 1] = '\0';
+   }
+
+   return s;
+}
+
+/* Remove leading and trailing whitespaces */
+char *string_trim_whitespace(char *const s)
+{
+   string_trim_whitespace_right(s);  /* order matters */
+   string_trim_whitespace_left(s);
+
+   return s;
+}
+
+void word_wrap(char *dst, size_t dst_size, const char *src, int line_width, int wideglyph_width, unsigned max_lines)
+{
+   char *lastspace     = NULL;
+   unsigned counter    = 0;
+   unsigned lines      = 1;
+   size_t src_len      = strlen(src);
+   const char *src_end = src + src_len;
+
+   /* Prevent buffer overflow */
+   if (dst_size < src_len + 1)
+      return;
+
+   /* Early return if src string length is less
+    * than line width */
+   if (src_len < line_width)
+   {
+      strcpy(dst, src);
+      return;
+   }
+
+   while (*src != '\0')
+   {
+      unsigned char_len;
+
+      char_len = (unsigned)(utf8skip(src, 1) - src);
+      counter++;
+
+      if (*src == ' ')
+         lastspace = dst; /* Remember the location of the whitespace */
+      else if (*src == '\n')
+      {
+         /* If newlines embedded in the input,
+          * reset the index */
+         lines++;
+         counter = 0;
+
+         /* Early return if remaining src string
+          * length is less than line width */
+         if (src_end - src <= line_width)
+         {
+            strcpy(dst, src);
+            return;
+         }
+     }
+
+      while (char_len--)
+         *dst++ = *src++;
+
+      if (counter >= (unsigned)line_width)
+      {
+         counter = 0;
+
+         if (lastspace && (max_lines == 0 || lines < max_lines))
+         {
+            /* Replace nearest (previous) whitespace
+             * with newline character */
+            *lastspace = '\n';
+            lines++;
+
+            src -= dst - lastspace - 1;
+            dst = lastspace + 1;
+            lastspace  = NULL;
+
+            /* Early return if remaining src string
+             * length is less than line width */
+            if (src_end - src < line_width)
+            {
+               strcpy(dst, src);
+               return;
+            }
+         }
+      }
+   }
+
+   *dst = '\0';
+}
+
+void word_wrap_wideglyph(char *dst, size_t dst_size, const char *src, int line_width, int wideglyph_width, unsigned max_lines)
+{
+   char *lastspace                   = NULL;
+   char *lastwideglyph               = NULL;
+   const char *src_end               = src + strlen(src);
+   unsigned lines                    = 1;
+   /* 'line_width' means max numbers of characters per line,
+    * but this metric is only meaningful when dealing with
+    * 'regular' glyphs that have an on-screen pixel width
+    * similar to that of regular Latin characters.
+    * When handing so-called 'wide' Unicode glyphs, it is
+    * necessary to consider the actual on-screen pixel width
+    * of each character.
+    * In order to do this, we create a distinction between
+    * regular Latin 'non-wide' glyphs and 'wide' glyphs, and
+    * normalise all values relative to the on-screen pixel
+    * width of regular Latin characters:
+    * - Regular 'non-wide' glyphs have a normalised width of 100
+    * - 'line_width' is therefore normalised to 100 * (width_in_characters)
+    * - 'wide' glyphs have a normalised width of
+    *   100 * (wide_character_pixel_width / latin_character_pixel_width)
+    * - When a character is detected, the position in the current
+    *   line is incremented by the regular normalised width of 100
+    * - If that character is then determined to be a 'wide'
+    *   glyph, the position in the current line is further incremented
+    *   by the difference between the normalised 'wide' and 'non-wide'
+    *   width values */
+   unsigned counter_normalized       = 0;
+   int line_width_normalized         = line_width * 100;
+   int additional_counter_normalized = wideglyph_width - 100;
+ 
+   /* Early return if src string length is less
+    * than line width */
+   if (src_end - src < line_width)
+   {
+      strlcpy(dst, src, dst_size);
+      return;
+   }
+
+   while (*src != '\0')
+   {
+      unsigned char_len;
+
+      char_len = (unsigned)(utf8skip(src, 1) - src);
+      counter_normalized += 100;
+
+      /* Prevent buffer overflow */
+      if (char_len >= dst_size)
+         break;
+
+      if (*src == ' ')
+         lastspace = dst; /* Remember the location of the whitespace */
+      else if (*src == '\n')
+      {
+         /* If newlines embedded in the input,
+          * reset the index */
+         lines++;
+         counter_normalized = 0;
+
+         /* Early return if remaining src string
+          * length is less than line width */
+         if (src_end - src <= line_width)
+         {
+            strlcpy(dst, src, dst_size);
+            return;
+         }
+      }
+      else if (char_len >= 3)
+      {
+         /* Remember the location of the first byte
+          * whose length as UTF-8 >= 3*/
+         lastwideglyph = dst;
+         counter_normalized += additional_counter_normalized;
+      }
+
+      dst_size -= char_len;
+      while (char_len--)
+         *dst++ = *src++;
+
+      if (counter_normalized >= (unsigned)line_width_normalized)
+      {
+         counter_normalized = 0;
+
+         if (max_lines != 0 && lines >= max_lines)
+            continue;
+         else if (lastwideglyph && (!lastspace || lastwideglyph > lastspace))
+         {
+            /* Insert newline character */
+            *lastwideglyph = '\n';
+            lines++;
+            src -= dst - lastwideglyph;
+            dst = lastwideglyph + 1;
+            lastwideglyph = NULL;
+
+            /* Early return if remaining src string
+             * length is less than line width */
+            if (src_end - src <= line_width)
+            {
+               strlcpy(dst, src, dst_size);
+               return;
+            }
+         }
+         else if (lastspace)
+         {
+            /* Replace nearest (previous) whitespace
+             * with newline character */
+            *lastspace = '\n';
+            lines++;
+            src -= dst - lastspace - 1;
+            dst = lastspace + 1;
+            lastspace = NULL;
+
+            /* Early return if remaining src string
+             * length is less than line width */
+            if (src_end - src < line_width)
+            {
+               strlcpy(dst, src, dst_size);
+               return;
+            }
+         }
+      }
+   }
+
+   *dst = '\0';
+}
+
+/* Splits string into tokens seperated by 'delim'
+ * > Returned token string must be free()'d
+ * > Returns NULL if token is not found
+ * > After each call, 'str' is set to the position after the
+ *   last found token
+ * > Tokens *include* empty strings
+ * Usage example:
+ *    char *str      = "1,2,3,4,5,6,7,,,10,";
+ *    char **str_ptr = &str;
+ *    char *token    = NULL;
+ *    while ((token = string_tokenize(str_ptr, ",")))
+ *    {
+ *        printf("%s\n", token);
+ *        free(token);
+ *        token = NULL;
+ *    }
+ */
+char* string_tokenize(char **str, const char *delim)
+{
+   /* Taken from https://codereview.stackexchange.com/questions/216956/strtok-function-thread-safe-supports-empty-tokens-doesnt-change-string# */
+   char *str_ptr    = NULL;
+   char *delim_ptr  = NULL;
+   char *token      = NULL;
+   size_t token_len = 0;
+
+   /* Sanity checks */
+   if (!str || string_is_empty(delim))
+      return NULL;
+
+   str_ptr = *str;
+
+   /* Note: we don't check string_is_empty() here,
+    * empty strings are valid */
+   if (!str_ptr)
+      return NULL;
+
+   /* Search for delimiter */
+   delim_ptr = strstr(str_ptr, delim);
+
+   if (delim_ptr)
+      token_len = delim_ptr - str_ptr;
+   else
+      token_len = strlen(str_ptr);
+
+   /* Allocate token string */
+   token = (char *)malloc((token_len + 1) * sizeof(char));
+
+   if (!token)
+      return NULL;
+
+   /* Copy token */
+   strlcpy(token, str_ptr, (token_len + 1) * sizeof(char));
+   token[token_len] = '\0';
+
+   /* Update input string pointer */
+   *str = delim_ptr ? delim_ptr + strlen(delim) : NULL;
+
+   return token;
+}
+
+/* Removes every instance of character 'c' from 'str' */
+void string_remove_all_chars(char *str, char c)
+{
+   char *read_ptr  = NULL;
+   char *write_ptr = NULL;
+
+   if (string_is_empty(str))
+      return;
+
+   read_ptr  = str;
+   write_ptr = str;
+
+   while (*read_ptr != '\0')
+   {
+      *write_ptr = *read_ptr++;
+      write_ptr += (*write_ptr != c) ? 1 : 0;
+   }
+
+   *write_ptr = '\0';
+}
+
+/* Replaces every instance of character 'find' in 'str'
+ * with character 'replace' */
+void string_replace_all_chars(char *str, char find, char replace)
+{
+   char *str_ptr = str;
+
+   if (string_is_empty(str))
+      return;
+
+   while ((str_ptr = strchr(str_ptr, find)))
+      *str_ptr++ = replace;
+}
+
+/* Converts string to unsigned integer.
+ * Returns 0 if string is invalid  */
+unsigned string_to_unsigned(const char *str)
+{
+   const char *ptr = NULL;
+
+   if (string_is_empty(str))
+      return 0;
+
+   for (ptr = str; *ptr != '\0'; ptr++)
+   {
+      if (!ISDIGIT((unsigned char)*ptr))
+         return 0;
+   }
+
+   return (unsigned)strtoul(str, NULL, 10);
+}
+
+/* Converts hexadecimal string to unsigned integer.
+ * Handles optional leading '0x'.
+ * Returns 0 if string is invalid  */
+unsigned string_hex_to_unsigned(const char *str)
+{
+   const char *hex_str = str;
+   const char *ptr     = NULL;
+   size_t len;
+
+   if (string_is_empty(str))
+      return 0;
+
+   /* Remove leading '0x', if required */
+   len = strlen(str);
+
+   if (len >= 2)
+      if ((str[0] == '0') &&
+          ((str[1] == 'x') || (str[1] == 'X')))
+         hex_str = str + 2;
+
+   if (string_is_empty(hex_str))
+      return 0;
+
+   /* Check for valid characters */
+   for (ptr = hex_str; *ptr != '\0'; ptr++)
+   {
+      if (!isxdigit((unsigned char)*ptr))
+         return 0;
+   }
+
+   return (unsigned)strtoul(hex_str, NULL, 16);
+}
diff --git a/libretro/libretro-common/time/rtime.c b/libretro/libretro-common/time/rtime.c
new file mode 100644
index 0000000..d66c228
--- /dev/null
+++ b/libretro/libretro-common/time/rtime.c
@@ -0,0 +1,81 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (rtime.c).
+ * ---------------------------------------------------------------------------------------
+ *
+ * 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.
+ */
+
+#ifdef HAVE_THREADS
+#include <rthreads/rthreads.h>
+#include <retro_assert.h>
+#include <stdlib.h>
+#endif
+
+#include <string.h>
+#include <time/rtime.h>
+
+#ifdef HAVE_THREADS
+/* TODO/FIXME - global */
+slock_t *rtime_localtime_lock = NULL;
+#endif
+
+/* Must be called before using rtime_localtime() */
+void rtime_init(void)
+{
+   rtime_deinit();
+#ifdef HAVE_THREADS
+   if (!rtime_localtime_lock)
+      rtime_localtime_lock = slock_new();
+
+   retro_assert(rtime_localtime_lock);
+#endif
+}
+
+/* Must be called upon program termination */
+void rtime_deinit(void)
+{
+#ifdef HAVE_THREADS
+   if (rtime_localtime_lock)
+   {
+      slock_free(rtime_localtime_lock);
+      rtime_localtime_lock = NULL;
+   }
+#endif
+}
+
+/* Thread-safe wrapper for localtime() */
+struct tm *rtime_localtime(const time_t *timep, struct tm *result)
+{
+   struct tm *time_info = NULL;
+
+   /* Lock mutex */
+#ifdef HAVE_THREADS
+   slock_lock(rtime_localtime_lock);
+#endif
+
+   time_info = localtime(timep);
+   if (time_info)
+      memcpy(result, time_info, sizeof(struct tm));
+
+   /* Unlock mutex */
+#ifdef HAVE_THREADS
+   slock_unlock(rtime_localtime_lock);
+#endif
+
+   return result;
+}
diff --git a/libretro/libretro-common/vfs/vfs_implementation.c b/libretro/libretro-common/vfs/vfs_implementation.c
new file mode 100644
index 0000000..7a24a95
--- /dev/null
+++ b/libretro/libretro-common/vfs/vfs_implementation.c
@@ -0,0 +1,1335 @@
+/* Copyright  (C) 2010-2020 The RetroArch team
+*
+* ---------------------------------------------------------------------------------------
+* The following license statement only applies to this file (vfs_implementation.c).
+* ---------------------------------------------------------------------------------------
+*
+* 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.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/types.h>
+
+#include <string/stdstring.h>
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if defined(_WIN32)
+#  ifdef _MSC_VER
+#    define setmode _setmode
+#  endif
+#include <sys/stat.h>
+#  ifdef _XBOX
+#    include <xtl.h>
+#    define INVALID_FILE_ATTRIBUTES -1
+#  else
+
+#    include <fcntl.h>
+#    include <direct.h>
+#    include <windows.h>
+#  endif
+#    include <io.h>
+#else
+#  if defined(PSP)
+#    include <pspiofilemgr.h>
+#  endif
+#  include <sys/types.h>
+#  include <sys/stat.h>
+#  if !defined(VITA)
+#  include <dirent.h>
+#  endif
+#  include <unistd.h>
+#  if defined(ORBIS)
+#  include <sys/fcntl.h>
+#  include <sys/dirent.h>
+#  include <orbisFile.h>
+#  endif
+#  if defined(WIIU)
+#  include <malloc.h>
+#  endif
+#endif
+
+#include <fcntl.h>
+
+/* TODO: Some things are duplicated but I'm really afraid of breaking other platforms by touching this */
+#if defined(VITA)
+#  include <psp2/io/fcntl.h>
+#  include <psp2/io/dirent.h>
+#  include <psp2/io/stat.h>
+#elif defined(ORBIS)
+#  include <orbisFile.h>
+#  include <ps4link.h>
+#  include <sys/dirent.h>
+#  include <sys/fcntl.h>
+#elif !defined(_WIN32)
+#  if defined(PSP)
+#    include <pspiofilemgr.h>
+#  endif
+#  include <sys/types.h>
+#  include <sys/stat.h>
+#  include <dirent.h>
+#  include <unistd.h>
+#endif
+
+#if defined(__QNX__) || defined(PSP)
+#include <unistd.h> /* stat() is defined here */
+#endif
+
+#ifdef __APPLE__
+#include <CoreFoundation/CoreFoundation.h>
+#endif
+#ifdef __HAIKU__
+#include <kernel/image.h>
+#endif
+#ifndef __MACH__
+#include <compat/strl.h>
+#include <compat/posix_string.h>
+#endif
+#include <compat/strcasestr.h>
+#include <retro_miscellaneous.h>
+#include <encodings/utf.h>
+
+#if defined(_WIN32)
+#ifndef _XBOX
+#if defined(_MSC_VER) && _MSC_VER <= 1200
+#define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
+#endif
+#endif
+#elif defined(VITA)
+#define SCE_ERROR_ERRNO_EEXIST 0x80010011
+#include <psp2/io/fcntl.h>
+#include <psp2/io/dirent.h>
+#include <psp2/io/stat.h>
+#else
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#endif
+
+#if defined(ORBIS)
+#include <orbisFile.h>
+#include <sys/fcntl.h>
+#include <sys/dirent.h>
+#endif
+#if defined(PSP)
+#include <pspkernel.h>
+#endif
+
+#if defined(__PS3__) || defined(__PSL1GHT__)
+#include <defines/ps3_defines.h>
+#if defined(__PSL1GHT__)
+#include <lv2/sysfs.h>
+#endif
+#endif
+
+#if defined(VITA)
+#define FIO_S_ISDIR SCE_S_ISDIR
+#endif
+
+#if defined(__QNX__) || defined(PSP)
+#include <unistd.h> /* stat() is defined here */
+#endif
+
+/* Assume W-functions do not work below Win2K and Xbox platforms */
+#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500 || defined(_XBOX)
+
+#ifndef LEGACY_WIN32
+#define LEGACY_WIN32
+#endif
+
+#endif
+
+#if defined(_WIN32)
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+#define ATLEAST_VC2005
+#endif
+#endif
+
+#include <vfs/vfs_implementation.h>
+#include <libretro.h>
+#if defined(HAVE_MMAP)
+#include <memmap.h>
+#endif
+#include <encodings/utf.h>
+#include <compat/fopen_utf8.h>
+#include <file/file_path.h>
+
+#ifdef HAVE_CDROM
+#include <vfs/vfs_implementation_cdrom.h>
+#endif
+
+#if (defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE - 0) >= 200112) || (defined(__POSIX_VISIBLE) && __POSIX_VISIBLE >= 200112) || (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112) || __USE_LARGEFILE || (defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS == 64)
+#ifndef HAVE_64BIT_OFFSETS
+#define HAVE_64BIT_OFFSETS
+#endif
+#endif
+
+#define RFILE_HINT_UNBUFFERED (1 << 8)
+
+int64_t retro_vfs_file_seek_internal(
+      libretro_vfs_implementation_file *stream,
+      int64_t offset, int whence)
+{
+   if (!stream)
+      return -1;
+
+   if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0)
+   {
+#ifdef HAVE_CDROM
+      if (stream->scheme == VFS_SCHEME_CDROM)
+         return retro_vfs_file_seek_cdrom(stream, offset, whence);
+#endif
+#ifdef ATLEAST_VC2005
+      /* VC2005 and up have a special 64-bit fseek */
+      return _fseeki64(stream->fp, offset, whence);
+#elif defined(ORBIS)
+      {
+         int ret = orbisLseek(stream->fd, offset, whence);
+         if (ret < 0)
+            return -1;
+         return 0;
+      }
+#elif defined(HAVE_64BIT_OFFSETS)
+      return fseeko(stream->fp, (off_t)offset, whence);
+#else
+      return fseek(stream->fp, (long)offset, whence);
+#endif
+   }
+#ifdef HAVE_MMAP
+   /* Need to check stream->mapped because this function is
+    * called in filestream_open() */
+   if (stream->mapped && stream->hints &
+         RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS)
+   {
+      /* fseek() returns error on under/overflow but
+       * allows cursor > EOF for
+       read-only file descriptors. */
+      switch (whence)
+      {
+         case SEEK_SET:
+            if (offset < 0)
+               return -1;
+
+            stream->mappos = offset;
+            break;
+
+         case SEEK_CUR:
+            if (  (offset < 0 && stream->mappos + offset > stream->mappos) ||
+                  (offset > 0 && stream->mappos + offset < stream->mappos))
+               return -1;
+
+            stream->mappos += offset;
+            break;
+
+         case SEEK_END:
+            if (stream->mapsize + offset < stream->mapsize)
+               return -1;
+
+            stream->mappos = stream->mapsize + offset;
+            break;
+      }
+      return stream->mappos;
+   }
+#endif
+
+   if (lseek(stream->fd, (off_t)offset, whence) < 0)
+      return -1;
+
+   return 0;
+}
+
+/**
+ * retro_vfs_file_open_impl:
+ * @path               : path to file
+ * @mode               : file mode to use when opening (read/write)
+ * @hints              :
+ *
+ * Opens a file for reading or writing, depending on the requested mode.
+ * Returns a pointer to an RFILE if opened successfully, otherwise NULL.
+ **/
+
+libretro_vfs_implementation_file *retro_vfs_file_open_impl(
+      const char *path, unsigned mode, unsigned hints)
+{
+#if defined(VFS_FRONTEND) || defined(HAVE_CDROM)
+   int                             path_len = (int)strlen(path);
+#endif
+#ifdef VFS_FRONTEND
+   const char                 *dumb_prefix  = "vfsonly://";
+   size_t                   dumb_prefix_siz = STRLEN_CONST("vfsonly://");
+   int                      dumb_prefix_len = (int)dumb_prefix_siz;
+#endif
+#ifdef HAVE_CDROM
+   const char *cdrom_prefix                 = "cdrom://";
+   size_t cdrom_prefix_siz                  = STRLEN_CONST("cdrom://");
+   int cdrom_prefix_len                     = (int)cdrom_prefix_siz;
+#endif
+   int                                flags = 0;
+   const char                     *mode_str = NULL;
+   libretro_vfs_implementation_file *stream = 
+      (libretro_vfs_implementation_file*)
+      malloc(sizeof(*stream));
+
+   if (!stream)
+      return NULL;
+
+   stream->fd                     = 0;
+   stream->hints                  = hints;
+   stream->size                   = 0;
+   stream->buf                    = NULL;
+   stream->fp                     = NULL;
+#ifdef _WIN32
+   stream->fh                     = 0;
+#endif
+   stream->orig_path              = NULL;
+   stream->mappos                 = 0;
+   stream->mapsize                = 0;
+   stream->mapped                 = NULL;
+   stream->scheme                 = VFS_SCHEME_NONE;
+
+#ifdef VFS_FRONTEND
+   if (path_len >= dumb_prefix_len)
+      if (!memcmp(path, dumb_prefix, dumb_prefix_len))
+         path             += dumb_prefix_siz;
+#endif
+
+#ifdef HAVE_CDROM
+   stream->cdrom.cue_buf          = NULL;
+   stream->cdrom.cue_len          = 0;
+   stream->cdrom.byte_pos         = 0;
+   stream->cdrom.drive            = 0;
+   stream->cdrom.cur_min          = 0;
+   stream->cdrom.cur_sec          = 0;
+   stream->cdrom.cur_frame        = 0;
+   stream->cdrom.cur_track        = 0;
+   stream->cdrom.cur_lba          = 0;
+   stream->cdrom.last_frame_lba   = 0;
+   stream->cdrom.last_frame[0]    = '\0';
+   stream->cdrom.last_frame_valid = false;
+
+   if (path_len > cdrom_prefix_len)
+   {
+      if (!memcmp(path, cdrom_prefix, cdrom_prefix_len))
+      {
+         path             += cdrom_prefix_siz;
+         stream->scheme    = VFS_SCHEME_CDROM;
+      }
+   }
+#endif
+
+   stream->orig_path       = strdup(path);
+
+#ifdef HAVE_MMAP
+   if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS && mode == RETRO_VFS_FILE_ACCESS_READ)
+      stream->hints |= RFILE_HINT_UNBUFFERED;
+   else
+#endif
+      stream->hints &= ~RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS;
+
+   switch (mode)
+   {
+      case RETRO_VFS_FILE_ACCESS_READ:
+         mode_str = "rb";
+
+         flags    = O_RDONLY;
+#ifdef _WIN32
+         flags   |= O_BINARY;
+#endif
+         break;
+
+      case RETRO_VFS_FILE_ACCESS_WRITE:
+         mode_str = "wb";
+
+         flags    = O_WRONLY | O_CREAT | O_TRUNC;
+#if !defined(ORBIS)
+#if !defined(_WIN32)
+         flags   |= S_IRUSR | S_IWUSR;
+#else
+         flags   |= O_BINARY;
+#endif
+#endif
+         break;
+
+      case RETRO_VFS_FILE_ACCESS_READ_WRITE:
+         mode_str = "w+b";
+         flags    = O_RDWR | O_CREAT | O_TRUNC;
+#if !defined(ORBIS)
+#if !defined(_WIN32)
+         flags   |= S_IRUSR | S_IWUSR;
+#else
+         flags   |= O_BINARY;
+#endif
+#endif
+         break;
+
+      case RETRO_VFS_FILE_ACCESS_WRITE | RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING:
+      case RETRO_VFS_FILE_ACCESS_READ_WRITE | RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING:
+         mode_str = "r+b";
+
+         flags    = O_RDWR;
+#if !defined(ORBIS)
+#if !defined(_WIN32)
+         flags   |= S_IRUSR | S_IWUSR;
+#else
+         flags   |= O_BINARY;
+#endif
+#endif
+         break;
+
+      default:
+         goto error;
+   }
+
+   if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0)
+   {
+#ifdef ORBIS
+      int fd = orbisOpen(path, flags, 0644);
+      if (fd < 0)
+      {
+         stream->fd = -1;
+         goto error;
+      }
+      stream->fd    = fd;
+#else
+      FILE *fp;
+#ifdef HAVE_CDROM
+      if (stream->scheme == VFS_SCHEME_CDROM)
+      {
+         retro_vfs_file_open_cdrom(stream, path, mode, hints);
+#if defined(_WIN32) && !defined(_XBOX)
+         if (!stream->fh)
+            goto error;
+#else
+         if (!stream->fp)
+            goto error;
+#endif
+      }
+      else
+#endif
+      {
+         fp = (FILE*)fopen_utf8(path, mode_str);
+
+         if (!fp)
+            goto error;
+
+         stream->fp  = fp;
+      }
+      /* Regarding setvbuf:
+       *
+       * https://www.freebsd.org/cgi/man.cgi?query=setvbuf&apropos=0&sektion=0&manpath=FreeBSD+11.1-RELEASE&arch=default&format=html
+       *
+       * If the size argument is not zero but buf is NULL, 
+       * a buffer of the given size will be allocated immediately, and
+       * released on close. This is an extension to ANSI C.
+       *
+       * Since C89 does not support specifying a NULL buffer 
+       * with a non-zero size, we create and track our own buffer for it.
+       */
+      /* TODO: this is only useful for a few platforms, 
+       * find which and add ifdef */
+#if defined(_3DS)
+      if (stream->scheme != VFS_SCHEME_CDROM)
+      {
+         stream->buf = (char*)calloc(1, 0x10000);
+         if (stream->fp)
+            setvbuf(stream->fp, stream->buf, _IOFBF, 0x10000);
+      }
+#elif defined(WIIU)
+      if (stream->scheme != VFS_SCHEME_CDROM)
+      {
+         const int bufsize = 128*1024;
+         stream->buf = (char*)memalign(0x40, bufsize);
+         if (stream->fp)
+            setvbuf(stream->fp, stream->buf, _IOFBF, bufsize);
+      }
+#elif !defined(PSP)
+      if (stream->scheme != VFS_SCHEME_CDROM)
+      {
+         stream->buf = (char*)calloc(1, 0x4000);
+         if (stream->fp)
+            setvbuf(stream->fp, stream->buf, _IOFBF, 0x4000);
+      }
+#endif
+#endif
+   }
+   else
+   {
+#if defined(_WIN32) && !defined(_XBOX)
+#if defined(LEGACY_WIN32)
+      char *path_local    = utf8_to_local_string_alloc(path);
+      stream->fd          = open(path_local, flags, 0);
+      if (path_local)
+         free(path_local);
+#else
+      wchar_t * path_wide = utf8_to_utf16_string_alloc(path);
+      stream->fd          = _wopen(path_wide, flags, 0);
+      if (path_wide)
+         free(path_wide);
+#endif
+#else
+      stream->fd          = open(path, flags, 0);
+#endif
+
+      if (stream->fd == -1)
+         goto error;
+
+#ifdef HAVE_MMAP
+      if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS)
+      {
+         stream->mappos  = 0;
+         stream->mapped  = NULL;
+         stream->mapsize = retro_vfs_file_seek_internal(stream, 0, SEEK_END);
+
+         if (stream->mapsize == (uint64_t)-1)
+            goto error;
+
+         retro_vfs_file_seek_internal(stream, 0, SEEK_SET);
+
+         stream->mapped = (uint8_t*)mmap((void*)0,
+               stream->mapsize, PROT_READ,  MAP_SHARED, stream->fd, 0);
+
+         if (stream->mapped == MAP_FAILED)
+            stream->hints &= ~RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS;
+      }
+#endif
+   }
+#ifdef ORBIS
+   stream->size = orbisLseek(stream->fd, 0, SEEK_END);
+   orbisLseek(stream->fd, 0, SEEK_SET);
+#else
+#ifdef HAVE_CDROM
+   if (stream->scheme == VFS_SCHEME_CDROM)
+   {
+      retro_vfs_file_seek_cdrom(stream, 0, SEEK_SET);
+      retro_vfs_file_seek_cdrom(stream, 0, SEEK_END);
+
+      stream->size = retro_vfs_file_tell_impl(stream);
+
+      retro_vfs_file_seek_cdrom(stream, 0, SEEK_SET);
+   }
+   else
+#endif
+   {
+      retro_vfs_file_seek_internal(stream, 0, SEEK_SET);
+      retro_vfs_file_seek_internal(stream, 0, SEEK_END);
+
+      stream->size = retro_vfs_file_tell_impl(stream);
+
+      retro_vfs_file_seek_internal(stream, 0, SEEK_SET);
+   }
+#endif
+   return stream;
+
+error:
+   retro_vfs_file_close_impl(stream);
+   return NULL;
+}
+
+int retro_vfs_file_close_impl(libretro_vfs_implementation_file *stream)
+{
+   if (!stream)
+      return -1;
+
+#ifdef HAVE_CDROM
+   if (stream->scheme == VFS_SCHEME_CDROM)
+   {
+      retro_vfs_file_close_cdrom(stream);
+      goto end;
+   }
+#endif
+
+   if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0)
+   {
+      if (stream->fp)
+         fclose(stream->fp);
+   }
+   else
+   {
+#ifdef HAVE_MMAP
+      if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS)
+         munmap(stream->mapped, stream->mapsize);
+#endif
+   }
+
+   if (stream->fd > 0)
+   {
+#ifdef ORBIS
+      orbisClose(stream->fd);
+      stream->fd = -1;
+#else
+      close(stream->fd);
+#endif
+   }
+#ifdef HAVE_CDROM
+end:
+   if (stream->cdrom.cue_buf)
+      free(stream->cdrom.cue_buf);
+#endif
+   if (stream->buf)
+      free(stream->buf);
+
+   if (stream->orig_path)
+      free(stream->orig_path);
+
+   free(stream);
+
+   return 0;
+}
+
+int retro_vfs_file_error_impl(libretro_vfs_implementation_file *stream)
+{
+#ifdef HAVE_CDROM
+   if (stream->scheme == VFS_SCHEME_CDROM)
+      return retro_vfs_file_error_cdrom(stream);
+#endif
+#ifdef ORBIS
+   /* TODO/FIXME - implement this? */
+   return 0;
+#else
+   return ferror(stream->fp);
+#endif
+}
+
+int64_t retro_vfs_file_size_impl(libretro_vfs_implementation_file *stream)
+{
+   if (stream)
+      return stream->size;
+   return 0;
+}
+
+int64_t retro_vfs_file_truncate_impl(libretro_vfs_implementation_file *stream, int64_t length)
+{
+   if (!stream)
+      return -1;
+
+#ifdef _WIN32
+   if (_chsize(_fileno(stream->fp), length) != 0)
+      return -1;
+#elif !defined(VITA) && !defined(PSP) && !defined(PS2) && !defined(ORBIS) && (!defined(SWITCH) || defined(HAVE_LIBNX))
+   if (ftruncate(fileno(stream->fp), (off_t)length) != 0)
+      return -1;
+#endif
+
+   return 0;
+}
+
+int64_t retro_vfs_file_tell_impl(libretro_vfs_implementation_file *stream)
+{
+   if (!stream)
+      return -1;
+
+   if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0)
+   {
+#ifdef HAVE_CDROM
+      if (stream->scheme == VFS_SCHEME_CDROM)
+         return retro_vfs_file_tell_cdrom(stream);
+#endif
+#ifdef ORBIS
+      {
+         int64_t ret = orbisLseek(stream->fd, 0, SEEK_CUR);
+         if (ret < 0)
+            return -1;
+         return ret;
+      }
+#else
+#ifdef ATLEAST_VC2005
+      /* VC2005 and up have a special 64-bit ftell */
+      return _ftelli64(stream->fp);
+#elif defined(HAVE_64BIT_OFFSETS)
+      return ftello(stream->fp);
+#else
+      return ftell(stream->fp);
+#endif
+#endif
+   }
+#ifdef HAVE_MMAP
+   /* Need to check stream->mapped because this function
+    * is called in filestream_open() */
+   if (stream->mapped && stream->hints & 
+         RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS)
+      return stream->mappos;
+#endif
+   if (lseek(stream->fd, 0, SEEK_CUR) < 0)
+      return -1;
+
+   return 0;
+}
+
+int64_t retro_vfs_file_seek_impl(libretro_vfs_implementation_file *stream,
+      int64_t offset, int seek_position)
+{
+   int whence = -1;
+   switch (seek_position)
+   {
+      case RETRO_VFS_SEEK_POSITION_START:
+         whence = SEEK_SET;
+         break;
+      case RETRO_VFS_SEEK_POSITION_CURRENT:
+         whence = SEEK_CUR;
+         break;
+      case RETRO_VFS_SEEK_POSITION_END:
+         whence = SEEK_END;
+         break;
+   }
+
+   return retro_vfs_file_seek_internal(stream, offset, whence);
+}
+
+int64_t retro_vfs_file_read_impl(libretro_vfs_implementation_file *stream,
+      void *s, uint64_t len)
+{
+   if (!stream || !s)
+      return -1;
+
+   if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0)
+   {
+#ifdef HAVE_CDROM
+      if (stream->scheme == VFS_SCHEME_CDROM)
+         return retro_vfs_file_read_cdrom(stream, s, len);
+#endif
+#ifdef ORBIS
+      if (orbisRead(stream->fd, s, (size_t)len) < 0)
+         return -1;
+      return 0;
+#else
+      return fread(s, 1, (size_t)len, stream->fp);
+#endif
+   }
+#ifdef HAVE_MMAP
+   if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS)
+   {
+      if (stream->mappos > stream->mapsize)
+         return -1;
+
+      if (stream->mappos + len > stream->mapsize)
+         len = stream->mapsize - stream->mappos;
+
+      memcpy(s, &stream->mapped[stream->mappos], len);
+      stream->mappos += len;
+
+      return len;
+   }
+#endif
+
+   return read(stream->fd, s, (size_t)len);
+}
+
+int64_t retro_vfs_file_write_impl(libretro_vfs_implementation_file *stream, const void *s, uint64_t len)
+{
+   if (!stream)
+      return -1;
+
+   if ((stream->hints & RFILE_HINT_UNBUFFERED) == 0)
+   {
+#ifdef ORBIS
+      if (orbisWrite(stream->fd, s, (size_t)len) < 0)
+         return -1;
+      return 0;
+#else
+      return fwrite(s, 1, (size_t)len, stream->fp);
+#endif
+   }
+
+#ifdef HAVE_MMAP
+   if (stream->hints & RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS)
+      return -1;
+#endif
+   return write(stream->fd, s, (size_t)len);
+}
+
+int retro_vfs_file_flush_impl(libretro_vfs_implementation_file *stream)
+{
+   if (!stream)
+      return -1;
+#ifdef ORBIS
+   return 0;
+#else
+   return fflush(stream->fp) == 0 ? 0 : -1;
+#endif
+}
+
+int retro_vfs_file_remove_impl(const char *path)
+{
+#if defined(_WIN32) && !defined(_XBOX)
+   /* Win32 (no Xbox) */
+
+#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500
+   char *path_local    = NULL;
+#else
+   wchar_t *path_wide  = NULL;
+#endif
+   if (!path || !*path)
+      return -1;
+#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500
+   path_local = utf8_to_local_string_alloc(path);
+
+   if (path_local)
+   {
+      int ret = remove(path_local);
+      free(path_local);
+
+      if (ret == 0)
+         return 0;
+   }
+#else
+   path_wide = utf8_to_utf16_string_alloc(path);
+
+   if (path_wide)
+   {
+      int ret = _wremove(path_wide);
+      free(path_wide);
+
+      if (ret == 0)
+         return 0;
+   }
+#endif
+   return -1;
+#elif defined(ORBIS)
+   /* Orbis
+    * TODO/FIXME - stub for now */
+   return 0;
+#else
+   if (remove(path) == 0)
+      return 0;
+   return -1;
+#endif
+}
+
+int retro_vfs_file_rename_impl(const char *old_path, const char *new_path)
+{
+#if defined(_WIN32) && !defined(_XBOX)
+   /* Win32 (no Xbox) */
+   int ret                 = -1;
+#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500
+   char *old_path_local    = NULL;
+#else
+   wchar_t *old_path_wide  = NULL;
+#endif
+
+   if (!old_path || !*old_path || !new_path || !*new_path)
+      return -1;
+
+#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0500
+   old_path_local = utf8_to_local_string_alloc(old_path);
+
+   if (old_path_local)
+   {
+      char *new_path_local = utf8_to_local_string_alloc(new_path);
+
+      if (new_path_local)
+      {
+         if (rename(old_path_local, new_path_local) == 0)
+            ret = 0;
+         free(new_path_local);
+      }
+
+      free(old_path_local);
+   }
+#else
+   old_path_wide = utf8_to_utf16_string_alloc(old_path);
+
+   if (old_path_wide)
+   {
+      wchar_t *new_path_wide = utf8_to_utf16_string_alloc(new_path);
+
+      if (new_path_wide)
+      {
+         if (_wrename(old_path_wide, new_path_wide) == 0)
+            ret = 0;
+         free(new_path_wide);
+      }
+
+      free(old_path_wide);
+   }
+#endif
+   return ret;
+
+#elif defined(ORBIS)
+   /* Orbis */
+   /* TODO/FIXME - Stub for now */
+   if (!old_path || !*old_path || !new_path || !*new_path)
+      return -1;
+   return 0;
+
+#else
+   /* Every other platform */
+   if (!old_path || !*old_path || !new_path || !*new_path)
+      return -1;
+   return rename(old_path, new_path) == 0 ? 0 : -1;
+#endif
+}
+
+const char *retro_vfs_file_get_path_impl(
+      libretro_vfs_implementation_file *stream)
+{
+   /* should never happen, do something noisy so caller can be fixed */
+   if (!stream)
+      abort();
+   return stream->orig_path;
+}
+
+int retro_vfs_stat_impl(const char *path, int32_t *size)
+{
+   bool is_dir               = false;
+   bool is_character_special = false;
+#if defined(VITA) || defined(PSP)
+   /* Vita / PSP */
+   SceIoStat buf;
+   int dir_ret;
+   char *tmp                 = NULL;
+   size_t len                = 0;
+
+   if (!path || !*path)
+      return 0;
+
+   tmp                       = strdup(path);
+   len                       = strlen(tmp);
+   if (tmp[len-1] == '/')
+      tmp[len-1] = '\0';
+
+   dir_ret                   = sceIoGetstat(tmp, &buf);
+   free(tmp);
+   if (dir_ret < 0)
+      return 0;
+
+   if (size)
+      *size                  = (int32_t)buf.st_size;
+
+   is_dir                    = FIO_S_ISDIR(buf.st_mode);
+#elif defined(ORBIS)
+   /* Orbis */
+   int dir_ret               = 0;
+
+   if (!path || !*path)
+      return 0;
+
+   if (size)
+      *size                  = (int32_t)buf.st_size;
+
+   dir_ret                   = orbisDopen(path);
+   is_dir                    = dir_ret > 0;
+   orbisDclose(dir_ret);
+
+   is_character_special      = S_ISCHR(buf.st_mode);
+#elif defined(__PSL1GHT__) || defined(__PS3__)
+   /* Lowlevel Lv2 */
+   sysFSStat buf;
+
+   if (!path || !*path)
+      return 0;
+   if (sysFsStat(path, &buf) < 0)
+      return 0;
+
+   if (size)
+      *size                  = (int32_t)buf.st_size;
+
+   is_dir                    = ((buf.st_mode & S_IFMT) == S_IFDIR);
+#elif defined(_WIN32)
+   /* Windows */
+   DWORD file_info;
+   struct _stat buf;
+#if defined(LEGACY_WIN32)
+   char *path_local          = NULL;
+#else
+   wchar_t *path_wide        = NULL;
+#endif
+
+   if (!path || !*path)
+      return 0;
+
+#if defined(LEGACY_WIN32)
+   path_local                = utf8_to_local_string_alloc(path);
+   file_info                 = GetFileAttributes(path_local);
+
+   if (!string_is_empty(path_local))
+      _stat(path_local, &buf);
+
+   if (path_local)
+      free(path_local);
+#else
+   path_wide                 = utf8_to_utf16_string_alloc(path);
+   file_info                 = GetFileAttributesW(path_wide);
+
+   _wstat(path_wide, &buf);
+
+   if (path_wide)
+      free(path_wide);
+#endif
+
+   if (file_info == INVALID_FILE_ATTRIBUTES)
+      return 0;
+
+   if (size)
+      *size = (int32_t)buf.st_size;
+
+   is_dir = (file_info & FILE_ATTRIBUTE_DIRECTORY);
+
+#elif defined(GEKKO)
+   /* On GEKKO platforms, paths cannot have
+    * trailing slashes - we must therefore
+    * remove them */
+   char *path_buf = NULL;
+   int stat_ret   = -1;
+   struct stat stat_buf;
+   size_t len;
+
+   if (string_is_empty(path))
+      return 0;
+
+   path_buf = strdup(path);
+   if (!path_buf)
+      return 0;
+
+   len = strlen(path_buf);
+   if (len > 0)
+      if (path_buf[len - 1] == '/')
+         path_buf[len - 1] = '\0';
+
+   stat_ret = stat(path_buf, &stat_buf);
+   free(path_buf);
+
+   if (stat_ret < 0)
+      return 0;
+
+   if (size)
+      *size             = (int32_t)stat_buf.st_size;
+
+   is_dir               = S_ISDIR(stat_buf.st_mode);
+   is_character_special = S_ISCHR(stat_buf.st_mode);
+
+#else
+   /* Every other platform */
+   struct stat buf;
+
+   if (!path || !*path)
+      return 0;
+   if (stat(path, &buf) < 0)
+      return 0;
+
+   if (size)
+      *size             = (int32_t)buf.st_size;
+
+   is_dir               = S_ISDIR(buf.st_mode);
+   is_character_special = S_ISCHR(buf.st_mode);
+#endif
+   return RETRO_VFS_STAT_IS_VALID | (is_dir ? RETRO_VFS_STAT_IS_DIRECTORY : 0) | (is_character_special ? RETRO_VFS_STAT_IS_CHARACTER_SPECIAL : 0);
+}
+
+#if defined(VITA)
+#define path_mkdir_error(ret) (((ret) == SCE_ERROR_ERRNO_EEXIST))
+#elif defined(PSP) || defined(PS2) || defined(_3DS) || defined(WIIU) || defined(SWITCH) || defined(ORBIS)
+#define path_mkdir_error(ret) ((ret) == -1)
+#else
+#define path_mkdir_error(ret) ((ret) < 0 && errno == EEXIST)
+#endif
+
+int retro_vfs_mkdir_impl(const char *dir)
+{
+#if defined(_WIN32)
+#ifdef LEGACY_WIN32
+   int ret        = _mkdir(dir);
+#else
+   wchar_t *dir_w = utf8_to_utf16_string_alloc(dir);
+   int       ret  = -1;
+
+   if (dir_w)
+   {
+      ret = _wmkdir(dir_w);
+      free(dir_w);
+   }
+#endif
+#elif defined(IOS)
+   int ret = mkdir(dir, 0755);
+#elif defined(VITA) || defined(PSP)
+   int ret = sceIoMkdir(dir, 0777);
+#elif defined(ORBIS)
+   int ret = orbisMkdir(dir, 0755);
+#elif defined(__QNX__)
+   int ret = mkdir(dir, 0777);
+#elif defined(GEKKO)
+   /* On GEKKO platforms, mkdir() fails if
+    * the path has a trailing slash. We must
+    * therefore remove it. */
+   int ret = -1;
+   if (!string_is_empty(dir))
+   {
+      char *dir_buf = strdup(dir);
+
+      if (dir_buf)
+      {
+         size_t len = strlen(dir_buf);
+
+         if (len > 0)
+            if (dir_buf[len - 1] == '/')
+               dir_buf[len - 1] = '\0';
+
+         ret = mkdir(dir_buf, 0750);
+
+         free(dir_buf);
+      }
+   }
+#else
+   int ret = mkdir(dir, 0750);
+#endif
+
+   if (path_mkdir_error(ret))
+      return -2;
+   return ret < 0 ? -1 : 0;
+}
+
+#ifdef VFS_FRONTEND
+struct retro_vfs_dir_handle
+#else
+struct libretro_vfs_implementation_dir
+#endif
+{
+   char* orig_path;
+#if defined(_WIN32)
+#if defined(LEGACY_WIN32)
+   WIN32_FIND_DATA entry;
+#else
+   WIN32_FIND_DATAW entry;
+#endif
+   HANDLE directory;
+   bool next;
+   char path[PATH_MAX_LENGTH];
+#elif defined(VITA) || defined(PSP)
+   SceUID directory;
+   SceIoDirent entry;
+#elif defined(__PSL1GHT__) || defined(__PS3__)
+   int error;
+   int directory;
+   sysFSDirent entry;
+#elif defined(ORBIS)
+   int directory;
+   struct dirent entry;
+#else
+   DIR *directory;
+   const struct dirent *entry;
+#endif
+};
+
+static bool dirent_check_error(libretro_vfs_implementation_dir *rdir)
+{
+#if defined(_WIN32)
+   return (rdir->directory == INVALID_HANDLE_VALUE);
+#elif defined(VITA) || defined(PSP) || defined(ORBIS)
+   return (rdir->directory < 0);
+#elif defined(__PSL1GHT__) || defined(__PS3__)
+   return (rdir->error != FS_SUCCEEDED);
+#else
+   return !(rdir->directory);
+#endif
+}
+
+libretro_vfs_implementation_dir *retro_vfs_opendir_impl(
+      const char *name, bool include_hidden)
+{
+#if defined(_WIN32)
+   unsigned path_len;
+   char path_buf[1024];
+   size_t copied      = 0;
+#if defined(LEGACY_WIN32)
+   char *path_local   = NULL;
+#else
+   wchar_t *path_wide = NULL;
+#endif
+#endif
+   libretro_vfs_implementation_dir *rdir;
+
+   /*Reject null or empty string paths*/
+   if (!name || (*name == 0))
+      return NULL;
+
+   /*Allocate RDIR struct. Tidied later with retro_closedir*/
+   rdir = (libretro_vfs_implementation_dir*)calloc(1, sizeof(*rdir));
+   if (!rdir)
+      return NULL;
+
+   rdir->orig_path       = strdup(name);
+
+#if defined(_WIN32)
+   path_buf[0]           = '\0';
+   path_len              = strlen(name);
+
+   copied                = strlcpy(path_buf, name, sizeof(path_buf));
+
+   /* Non-NT platforms don't like extra slashes in the path */
+   if (name[path_len - 1] != '\\')
+      path_buf[copied++]   = '\\';
+
+   path_buf[copied]        = '*';
+   path_buf[copied+1]      = '\0';
+
+#if defined(LEGACY_WIN32)
+   path_local              = utf8_to_local_string_alloc(path_buf);
+   rdir->directory         = FindFirstFile(path_local, &rdir->entry);
+
+   if (path_local)
+      free(path_local);
+#else
+   path_wide               = utf8_to_utf16_string_alloc(path_buf);
+   rdir->directory         = FindFirstFileW(path_wide, &rdir->entry);
+
+   if (path_wide)
+      free(path_wide);
+#endif
+
+#elif defined(VITA) || defined(PSP)
+   rdir->directory       = sceIoDopen(name);
+#elif defined(_3DS)
+   rdir->directory       = !string_is_empty(name) ? opendir(name) : NULL;
+   rdir->entry           = NULL;
+#elif defined(__PSL1GHT__) || defined(__PS3__)
+   rdir->error           = sysFsOpendir(name, &rdir->directory);
+#elif defined(ORBIS)
+   rdir->directory       = orbisDopen(name);
+#else
+   rdir->directory       = opendir(name);
+   rdir->entry           = NULL;
+#endif
+
+#ifdef _WIN32
+   if (include_hidden)
+      rdir->entry.dwFileAttributes |= FILE_ATTRIBUTE_HIDDEN;
+   else
+      rdir->entry.dwFileAttributes &= ~FILE_ATTRIBUTE_HIDDEN;
+#endif
+
+   if (rdir->directory && !dirent_check_error(rdir))
+      return rdir;
+
+   retro_vfs_closedir_impl(rdir);
+   return NULL;
+}
+
+bool retro_vfs_readdir_impl(libretro_vfs_implementation_dir *rdir)
+{
+#if defined(_WIN32)
+   if (rdir->next)
+#if defined(LEGACY_WIN32)
+      return (FindNextFile(rdir->directory, &rdir->entry) != 0);
+#else
+      return (FindNextFileW(rdir->directory, &rdir->entry) != 0);
+#endif
+
+   rdir->next = true;
+   return (rdir->directory != INVALID_HANDLE_VALUE);
+#elif defined(VITA) || defined(PSP)
+   return (sceIoDread(rdir->directory, &rdir->entry) > 0);
+#elif defined(__PSL1GHT__) || defined(__PS3__)
+   uint64_t nread;
+   rdir->error = sysFsReaddir(rdir->directory, &rdir->entry, &nread);
+   return (nread != 0);
+#elif defined(ORBIS)
+   return (orbisDread(rdir->directory, &rdir->entry) > 0);
+#else
+   return ((rdir->entry = readdir(rdir->directory)) != NULL);
+#endif
+}
+
+const char *retro_vfs_dirent_get_name_impl(libretro_vfs_implementation_dir *rdir)
+{
+#if defined(_WIN32)
+#if defined(LEGACY_WIN32)
+   char *name       = local_to_utf8_string_alloc(rdir->entry.cFileName);
+#else
+   char *name       = utf16_to_utf8_string_alloc(rdir->entry.cFileName);
+#endif
+   memset(rdir->entry.cFileName, 0, sizeof(rdir->entry.cFileName));
+   strlcpy((char*)rdir->entry.cFileName, name, sizeof(rdir->entry.cFileName));
+   if (name)
+      free(name);
+   return (char*)rdir->entry.cFileName;
+#elif defined(VITA) || defined(PSP) || defined(ORBIS) || defined(__PSL1GHT__) || defined(__PS3__)
+   return rdir->entry.d_name;
+#else
+   if (!rdir || !rdir->entry)
+      return NULL;
+   return rdir->entry->d_name;
+#endif
+}
+
+bool retro_vfs_dirent_is_dir_impl(libretro_vfs_implementation_dir *rdir)
+{
+#if defined(_WIN32)
+   const WIN32_FIND_DATA *entry = (const WIN32_FIND_DATA*)&rdir->entry;
+   return entry->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
+#elif defined(PSP) || defined(VITA)
+   const SceIoDirent *entry     = (const SceIoDirent*)&rdir->entry;
+#if defined(PSP)
+   return (entry->d_stat.st_attr & FIO_SO_IFDIR) == FIO_SO_IFDIR;
+#elif defined(VITA)
+   return SCE_S_ISDIR(entry->d_stat.st_mode);
+#endif
+#elif defined(__PSL1GHT__) || defined(__PS3__)
+   sysFSDirent *entry          = (sysFSDirent*)&rdir->entry;
+   return (entry->d_type == FS_TYPE_DIR);
+#elif defined(ORBIS)
+   const struct dirent *entry   = &rdir->entry;
+   if (entry->d_type == DT_DIR)
+      return true;
+   if (!(entry->d_type == DT_UNKNOWN || entry->d_type == DT_LNK))
+      return false;
+#else
+   struct stat buf;
+   char path[PATH_MAX_LENGTH];
+#if defined(DT_DIR)
+   const struct dirent *entry = (const struct dirent*)rdir->entry;
+   if (entry->d_type == DT_DIR)
+      return true;
+   /* This can happen on certain file systems. */
+   if (!(entry->d_type == DT_UNKNOWN || entry->d_type == DT_LNK))
+      return false;
+#endif
+   /* dirent struct doesn't have d_type, do it the slow way ... */
+   path[0] = '\0';
+   fill_pathname_join(path, rdir->orig_path, retro_vfs_dirent_get_name_impl(rdir), sizeof(path));
+   if (stat(path, &buf) < 0)
+      return false;
+   return S_ISDIR(buf.st_mode);
+#endif
+}
+
+int retro_vfs_closedir_impl(libretro_vfs_implementation_dir *rdir)
+{
+   if (!rdir)
+      return -1;
+
+#if defined(_WIN32)
+   if (rdir->directory != INVALID_HANDLE_VALUE)
+      FindClose(rdir->directory);
+#elif defined(VITA) || defined(PSP)
+   sceIoDclose(rdir->directory);
+#elif defined(__PSL1GHT__) || defined(__PS3__)
+   rdir->error = sysFsClosedir(rdir->directory);
+#elif defined(ORBIS)
+   orbisDclose(rdir->directory);
+#else
+   if (rdir->directory)
+      closedir(rdir->directory);
+#endif
+
+   if (rdir->orig_path)
+      free(rdir->orig_path);
+   free(rdir);
+   return 0;
+}
diff --git a/libretro.c b/libretro/libretro.c
similarity index 99%
rename from libretro.c
rename to libretro/libretro.c
index 37da99d..510bf6f 100644
--- a/libretro.c
+++ b/libretro/libretro.c
@@ -6,6 +6,7 @@
 #include "common.h"
 #include "libretro.h"
 #include "libretro_core_options.h"
+#include "streams/file_stream.h"
 #include "memmap.h"
 
 #include "gba_memory.h"
@@ -604,6 +605,7 @@ static void retro_perf_dummy_counter(struct retro_perf_counter *counter) {};
 void retro_set_environment(retro_environment_t cb)
 {
    struct retro_log_callback log;
+   struct retro_vfs_interface_info vfs_iface_info;
 
    environ_cb = cb;
 
@@ -623,6 +625,11 @@ void retro_set_environment(retro_environment_t cb)
    };
    environ_cb(RETRO_ENVIRONMENT_GET_PERF_INTERFACE, &perf_cb);
 
+   vfs_iface_info.required_interface_version = 1;
+   vfs_iface_info.iface                      = NULL;
+   if (environ_cb(RETRO_ENVIRONMENT_GET_VFS_INTERFACE, &vfs_iface_info))
+      filestream_vfs_init(&vfs_iface_info);
+
    libretro_set_core_options(environ_cb);
 }
 
diff --git a/libretro_core_options.h b/libretro/libretro_core_options.h
similarity index 100%
rename from libretro_core_options.h
rename to libretro/libretro_core_options.h
diff --git a/libretro_core_options_intl.h b/libretro/libretro_core_options_intl.h
similarity index 100%
rename from libretro_core_options_intl.h
rename to libretro/libretro_core_options_intl.h