Merge pull request #119 from bparker06/cdrom_fast

initial cdrom support (master branch)

Makefile

@@ -14,15 +14,15 @@ unixcygpath = /$(subst :,,$(call unixpath,$1))
 
 ifeq ($(platform),)
    platform = unix
-   ifeq ($(shell uname -a),)
+   ifeq ($(shell uname -s),)
       platform = win
-   else ifneq ($(findstring Darwin,$(shell uname -a)),)
+   else ifneq ($(findstring Darwin,$(shell uname -s)),)
       platform = osx
       arch = intel
       ifeq ($(shell uname -p),powerpc)
          arch = ppc
       endif
-   else ifneq ($(findstring MINGW,$(shell uname -a)),)
+   else ifneq ($(findstring MINGW,$(shell uname -s)),)
       platform = win
    endif
 else ifneq (,$(findstring armv,$(platform)))
@@ -46,6 +46,7 @@ NEED_CRC32 = 1
 WANT_NEW_API = 1
 CORE_DEFINE := -DWANT_PCE_FAST_EMU -DWANT_STEREO_SOUND
 HAVE_CHD = 1
+HAVE_CDROM = 0
 
 prefix := /usr
 libdir := $(prefix)/lib
@@ -76,6 +77,10 @@ ifneq (,$(findstring unix,$(platform)))
    LDFLAGS += -lrt
    endif
    
+   ifneq ($(findstring Linux,$(shell uname -s)),)
+     HAVE_CDROM = 1
+   endif
+
    # Raspberry Pi
    ifneq (,$(findstring rpi,$(platform)))
       FLAGS += -fomit-frame-pointer -ffast-math
@@ -357,6 +362,8 @@ else ifneq (,$(findstring windows_msvc2017,$(platform)))
 		VCCompilerToolsBinDir := $(VcCompilerToolsDir)\bin\HostX86
 	endif
 
+	HAVE_CDROM = 1
+
 	PATH := $(shell IFS=$$'\n'; cygpath "$(VCCompilerToolsBinDir)/$(TargetArchMoniker)"):$(PATH)
 	PATH := $(PATH):$(shell IFS=$$'\n'; cygpath "$(VsInstallRoot)/Common7/IDE")
 	INCLUDE := $(shell IFS=$$'\n'; cygpath -w "$(VcCompilerToolsDir)/include")
@@ -388,6 +395,7 @@ WindowsSdkDir ?= $(shell reg query "HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windo
 WindowsSdkDirInc := $(shell reg query "HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.0A" -v "InstallationFolder" | grep -o '[A-Z]:\\.*')Include
 WindowsSdkDirInc ?= $(shell reg query "HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.1A" -v "InstallationFolder" | grep -o '[A-Z]:\\.*')Include
 
+HAVE_CDROM = 1
 
 INCFLAGS_PLATFORM = -I"$(WindowsSdkDirInc)"
 export INCLUDE := $(INCLUDE)
@@ -413,6 +421,7 @@ WindowsSdkDir ?= $(shell reg query "HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windo
 WindowsSdkDirInc := $(shell reg query "HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.0A" -v "InstallationFolder" | grep -o '[A-Z]:\\.*')Include
 WindowsSdkDirInc ?= $(shell reg query "HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.1A" -v "InstallationFolder" | grep -o '[A-Z]:\\.*')Include
 
+HAVE_CDROM = 1
 
 INCFLAGS_PLATFORM = -I"$(WindowsSdkDirInc)"
 export INCLUDE := $(INCLUDE)
@@ -435,6 +444,8 @@ BIN := $(shell IFS=$$'\n'; cygpath "$(VS80COMNTOOLS)../../VC/bin")
 
 WindowsSdkDir := $(INETSDK)
 
+HAVE_CDROM = 1
+
 export INCLUDE := $(INCLUDE);$(INETSDK)/Include;libretro-common/include/compat/msvc
 export LIB := $(LIB);$(WindowsSdkDir);$(INETSDK)/Lib
 TARGET := $(TARGET_NAME)_libretro.dll
@@ -465,6 +476,7 @@ else ifeq ($(platform), windows_msvc2003_x86)
 	CC  = cl.exe
 	CXX = cl.exe
 
+HAVE_CDROM = 1
 PATH := $(shell IFS=$$'\n'; cygpath "$(VS71COMNTOOLS)../../Vc7/bin"):$(PATH)
 PATH := $(PATH):$(shell IFS=$$'\n'; cygpath "$(VS71COMNTOOLS)../IDE")
 INCLUDE := $(shell IFS=$$'\n'; cygpath "$(VS71COMNTOOLS)../../Vc7/include")
@@ -488,6 +500,7 @@ else
    CXX = g++
    SHARED := -shared -Wl,--no-undefined -Wl,--version-script=link.T
    LDFLAGS += -static-libgcc -static-libstdc++ -lwinmm
+HAVE_CDROM = 1
 WINDOWS_VERSION=1
 
 endif
@@ -550,6 +563,13 @@ ifeq ($(WANT_NEW_API), 1)
 FLAGS += -DWANT_NEW_API
 endif
 
+ifeq ($(HAVE_CDROM), 1)
+   FLAGS += -DHAVE_CDROM
+ifeq ($(CDROM_DEBUG), 1)
+   FLAGS += -DCDROM_DEBUG
+endif
+endif
+
 CXXFLAGS += $(FLAGS)
 CFLAGS += $(FLAGS)
 

Makefile.common

@@ -20,6 +20,12 @@ ifneq (,$(findstring msvc2003,$(platform)))
 INCFLAGS += -I$(LIBRETRO_COMM_DIR)/include/compat/msvc
 endif
 
+ifeq ($(HAVE_CDROM), 1)
+SOURCES_C += \
+				 $(LIBRETRO_COMM_DIR)/cdrom/cdrom.c \
+				 $(LIBRETRO_COMM_DIR)/vfs/vfs_implementation_cdrom.c
+endif
+
 ifneq ($(HAVE_GRIFFIN),1)
    SOURCES_CXX += \
 	$(CORE_EMU_DIR)/huc6280.cpp \
@@ -196,6 +202,10 @@ endif
 ifneq ($(STATIC_LINKING), 1)
 SOURCES_C += $(LIBRETRO_COMM_DIR)/streams/file_stream.c \
 				 $(LIBRETRO_COMM_DIR)/streams/file_stream_transforms.c \
+         $(LIBRETRO_COMM_DIR)/file/file_path.c \
+         $(LIBRETRO_COMM_DIR)/file/retro_dirent.c \
+         $(LIBRETRO_COMM_DIR)/lists/string_list.c \
+         $(LIBRETRO_COMM_DIR)/lists/dir_list.c \
 				 $(LIBRETRO_COMM_DIR)/compat/compat_strl.c \
 				 $(LIBRETRO_COMM_DIR)/compat/compat_snprintf.c \
 				 $(LIBRETRO_COMM_DIR)/compat/compat_posix_string.c \
@@ -204,5 +214,6 @@ SOURCES_C += $(LIBRETRO_COMM_DIR)/streams/file_stream.c \
 				 $(LIBRETRO_COMM_DIR)/encodings/encoding_utf.c \
 				 $(LIBRETRO_COMM_DIR)/encodings/encoding_crc32.c \
 				 $(LIBRETRO_COMM_DIR)/vfs/vfs_implementation.c \
+         $(LIBRETRO_COMM_DIR)/memmap/memalign.c \
 				 $(LIBRETRO_COMM_DIR)/string/stdstring.c
 endif

libretro-common/compat/compat_snprintf.c

@@ -23,10 +23,7 @@
 /* THIS FILE HAS NOT BEEN VALIDATED ON PLATFORMS BESIDES MSVC */
 #ifdef _MSC_VER
 
-#include <retro_common.h>
+#include <stdio.h>
-#if _MSC_VER >= 1800
-#include <stdio.h> /* added for _vsnprintf_s and _vscprintf on VS2015 and VS2017 */
-#endif
 #include <stdarg.h>
 
 #if _MSC_VER < 1800
@@ -54,11 +51,14 @@ int c99_vsnprintf_retro__(char *outBuf, size_t size, const char *format, va_list
    int count = -1;
 
    if (size != 0)
+   {
 #if (_MSC_VER <= 1310)
-       count = _vsnprintf(outBuf, size - 1, format, ap);
+      count = _vsnprintf(outBuf, size - 1, format, ap);
 #else
-       count = _vsnprintf_s(outBuf, size, size - 1, format, ap);
+      count = _vsnprintf_s(outBuf, size, size - 1, format, ap);
 #endif
+   }
+
    if (count == -1)
        count = _vscprintf(format, ap);
 

libretro-common/compat/fopen_utf8.c

@@ -36,9 +36,7 @@
 
 void *fopen_utf8(const char * filename, const char * mode)
 {
-#if defined(_XBOX)
+#if defined(LEGACY_WIN32)
-   return fopen(filename, mode);
-#elif defined(LEGACY_WIN32)
    FILE             *ret = NULL;
    char * filename_local = utf8_to_local_string_alloc(filename);
 

libretro-common/encodings/encoding_crc32.c

@@ -23,6 +23,8 @@
 #include <stdint.h>
 #include <stddef.h>
 #include <encodings/crc32.h>
+#include <streams/file_stream.h>
+#include <stdlib.h>
 
 static const uint32_t crc32_table[256] = {
   0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
@@ -88,3 +90,51 @@ uint32_t encoding_crc32(uint32_t crc, const uint8_t *buf, size_t len)
 
    return crc ^ 0xffffffff;
 }
+
+#define CRC32_BUFFER_SIZE 1048576
+#define CRC32_MAX_MB 64
+
+/**
+ * Calculate a CRC32 from the first part of the given file.
+ * "first part" being the first (CRC32_BUFFER_SIZE * CRC32_MAX_MB)
+ * bytes.
+ *
+ * Returns: the crc32, or 0 if there was an error.
+ */
+uint32_t file_crc32(uint32_t crc, const char *path)
+{
+   unsigned i;
+   RFILE *file        = NULL;
+   unsigned char *buf = NULL;
+   if (!path)
+      return 0;
+
+   file = filestream_open(path, RETRO_VFS_FILE_ACCESS_READ, 0);
+   if (!file)
+      goto error;
+
+   buf = (unsigned char*)malloc(CRC32_BUFFER_SIZE);
+   if (!buf)
+      goto error;
+
+   for(i = 0; i < CRC32_MAX_MB; i++)
+   {
+      int64_t nread = filestream_read(file, buf, CRC32_BUFFER_SIZE);
+      if (nread < 0)		
+         goto error;
+
+      crc = encoding_crc32(crc, buf, (size_t)nread);
+      if (filestream_eof(file))
+         break;
+   }
+   free(buf);
+   filestream_close(file);
+   return crc;
+
+error:
+   if (buf)
+      free(buf);
+   if (file)
+      filestream_close(file);
+   return 0;
+}

libretro-common/encodings/encoding_utf.c

@@ -211,10 +211,7 @@ size_t utf8len(const char *string)
    return ret;
 }
 
-static uint8_t utf8_walkbyte(const char **string)
+#define utf8_walkbyte(string) (*((*(string))++))
-{
-   return *((*string)++);
-}
 
 /* Does not validate the input, returns garbage if it's not UTF-8. */
 uint32_t utf8_walk(const char **string)
@@ -227,14 +224,16 @@ uint32_t utf8_walk(const char **string)
 
    ret    = (ret << 6) | (utf8_walkbyte(string) & 0x3F);
    if (first >= 0xE0)
+   {
       ret = (ret << 6) | (utf8_walkbyte(string) & 0x3F);
-   if (first >= 0xF0)
+      if (first >= 0xF0)
-      ret = (ret << 6) | (utf8_walkbyte(string) & 0x3F);
+      {
-
+         ret = (ret << 6) | (utf8_walkbyte(string) & 0x3F);
-   if (first >= 0xF0)
+         return ret | (first & 7) << 18;
-      return ret | (first & 7) << 18;
+      }
-   if (first >= 0xE0)
       return ret | (first & 15) << 12;
+   }
+
    return ret | (first & 31) << 6;
 }
 
@@ -273,37 +272,25 @@ bool utf16_to_char_string(const uint16_t *in, char *s, size_t len)
    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,
+static char *mb_to_mb_string_alloc(const char *str,
       enum CodePage cp_in, enum CodePage cp_out)
 {
    char *path_buf         = NULL;
    wchar_t *path_buf_wide = NULL;
    int path_buf_len       = 0;
-   int path_buf_wide_len  = 0;
+   int path_buf_wide_len  = MultiByteToWideChar(cp_in, 0, str, -1, NULL, 0);
 
-   if (!str || !*str)
+   /* Windows 95 will return 0 from these functions with 
-      return NULL;
+    * a UTF8 codepage set without MSLU.
-
+    *
-   (void)path_buf;
+    * From an unknown MSDN version (others omit this info):
-   (void)path_buf_wide;
+    *   - CP_UTF8 Windows 98/Me, Windows NT 4.0 and later: 
-   (void)path_buf_len;
+    *   Translate using UTF-8. When this is set, dwFlags must be zero.
-   (void)path_buf_wide_len;
+    *   - Windows 95: Under the Microsoft Layer for Unicode, 
-
+    *   MultiByteToWideChar also supports CP_UTF7 and CP_UTF8.
-#if !defined(_WIN32) || defined(_XBOX)
-   /* assume string needs no modification if not on Windows */
-   return strdup(str);
-#else
-#ifdef UNICODE
-   /* TODO/FIXME: Not implemented. */
-   return strdup(str);
-#else
-
-   /* 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.
     */
-   path_buf_wide_len = MultiByteToWideChar(cp_in, 0, str, -1, NULL, 0);
 
    if (path_buf_wide_len)
    {
@@ -355,20 +342,37 @@ static char* mb_to_mb_string_alloc(const char *str,
       free(path_buf_wide);
 
    return NULL;
-#endif
-#endif
 }
+#endif
 
 /* Returned pointer MUST be freed by the caller if non-NULL. */
 char* utf8_to_local_string_alloc(const char *str)
 {
-   return mb_to_mb_string_alloc(str, CODEPAGE_UTF8, CODEPAGE_LOCAL);
+   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)
 {
-   return mb_to_mb_string_alloc(str, CODEPAGE_LOCAL, CODEPAGE_UTF8);
+   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. */
@@ -447,52 +451,44 @@ wchar_t* utf8_to_utf16_string_alloc(const char *str)
 char* utf16_to_utf8_string_alloc(const wchar_t *str)
 {
 #ifdef _WIN32
-   int len = 0;
+   int len        = 0;
-   int out_len = 0;
 #else
-   size_t len = 0;
+   size_t len     = 0;
-   size_t out_len = 0;
 #endif
-   char *buf = NULL;
+   char *buf      = NULL;
 
    if (!str || !*str)
       return NULL;
 
 #ifdef _WIN32
-   len = WideCharToMultiByte(CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
-
-   if (len)
    {
+      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;
 
-      out_len = WideCharToMultiByte(CP_UTF8, 0, str, -1, buf, len, NULL, NULL);
+      if (WideCharToMultiByte(code_page,
-   }
+            0, str, -1, buf, len, NULL, NULL) < 0)
-   else
-   {
-      /* fallback to ANSI codepage instead */
-      len = WideCharToMultiByte(CP_ACP, 0, str, -1, NULL, 0, NULL, NULL);
-
-      if (len)
       {
-         buf = (char*)calloc(len, sizeof(char));
+         free(buf);
-
+         return NULL;
-         if (!buf)
-            return NULL;
-
-         out_len = WideCharToMultiByte(CP_ACP, 0, str, -1, buf, len, NULL, NULL);
       }
    }
-
-   if (out_len < 0)
-   {
-      free(buf);
-      return NULL;
-   }
 #else
-   /* NOTE: For now, assume non-Windows platforms' locale is already UTF-8. */
+   /* NOTE: For now, assume non-Windows platforms' 
+    * locale is already UTF-8. */
    len = wcstombs(NULL, str, 0) + 1;
 
    if (len)
@@ -502,13 +498,11 @@ char* utf16_to_utf8_string_alloc(const wchar_t *str)
       if (!buf)
          return NULL;
 
-      out_len = wcstombs(buf, str, len);
+      if (wcstombs(buf, str, len) == (size_t)-1)
-   }
+      {
-
+         free(buf);
-   if (out_len == (size_t)-1)
+         return NULL;
-   {
+      }
-      free(buf);
-      return NULL;
    }
 #endif
 

libretro-common/file/retro_dirent.c

@@ -0,0 +1,118 @@
+/* Copyright  (C) 2010-2019 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (retro_dirent.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 <retro_common.h>
+
+#include <boolean.h>
+#include <retro_dirent.h>
+#define VFS_FRONTEND
+#include <vfs/vfs_implementation.h>
+
+static retro_vfs_opendir_t dirent_opendir_cb = NULL;
+static retro_vfs_readdir_t dirent_readdir_cb = NULL;
+static retro_vfs_dirent_get_name_t dirent_dirent_get_name_cb = NULL;
+static retro_vfs_dirent_is_dir_t dirent_dirent_is_dir_cb = NULL;
+static retro_vfs_closedir_t dirent_closedir_cb = NULL;
+
+void dirent_vfs_init(const struct retro_vfs_interface_info* vfs_info)
+{
+   const struct retro_vfs_interface* vfs_iface;
+
+   dirent_opendir_cb = NULL;
+   dirent_readdir_cb = NULL;
+   dirent_dirent_get_name_cb = NULL;
+   dirent_dirent_is_dir_cb = NULL;
+   dirent_closedir_cb = NULL;
+
+   vfs_iface = vfs_info->iface;
+
+   if (vfs_info->required_interface_version < DIRENT_REQUIRED_VFS_VERSION || !vfs_iface)
+      return;
+
+   dirent_opendir_cb = vfs_iface->opendir;
+   dirent_readdir_cb = vfs_iface->readdir;
+   dirent_dirent_get_name_cb = vfs_iface->dirent_get_name;
+   dirent_dirent_is_dir_cb = vfs_iface->dirent_is_dir;
+   dirent_closedir_cb = vfs_iface->closedir;
+}
+
+struct RDIR *retro_opendir_include_hidden(const char *name, bool include_hidden)
+{
+   if (dirent_opendir_cb != NULL)
+      return (struct RDIR *)dirent_opendir_cb(name, include_hidden);
+   return (struct RDIR *)retro_vfs_opendir_impl(name, include_hidden);
+}
+
+struct RDIR *retro_opendir(const char *name)
+{
+   return retro_opendir_include_hidden(name, false);
+}
+
+bool retro_dirent_error(struct RDIR *rdir)
+{
+   /* Left for compatibility */
+   return false;
+}
+
+int retro_readdir(struct RDIR *rdir)
+{
+   if (dirent_readdir_cb != NULL)
+      return dirent_readdir_cb((struct retro_vfs_dir_handle *)rdir);
+   return retro_vfs_readdir_impl((struct retro_vfs_dir_handle *)rdir);
+}
+
+const char *retro_dirent_get_name(struct RDIR *rdir)
+{
+   if (dirent_dirent_get_name_cb != NULL)
+      return dirent_dirent_get_name_cb((struct retro_vfs_dir_handle *)rdir);
+   return retro_vfs_dirent_get_name_impl((struct retro_vfs_dir_handle *)rdir);
+}
+
+/**
+ *
+ * retro_dirent_is_dir:
+ * @rdir         : pointer to the directory entry.
+ * @unused       : deprecated, included for compatibility reasons, pass NULL
+ *
+ * Is the directory listing entry a directory?
+ *
+ * Returns: true if directory listing entry is
+ * a directory, false if not.
+ */
+bool retro_dirent_is_dir(struct RDIR *rdir, const char *unused)
+{
+   if (dirent_dirent_is_dir_cb != NULL)
+      return dirent_dirent_is_dir_cb((struct retro_vfs_dir_handle *)rdir);
+   return retro_vfs_dirent_is_dir_impl((struct retro_vfs_dir_handle *)rdir);
+}
+
+void retro_closedir(struct RDIR *rdir)
+{
+   if (dirent_closedir_cb != NULL)
+      dirent_closedir_cb((struct retro_vfs_dir_handle *)rdir);
+   else
+      retro_vfs_closedir_impl((struct retro_vfs_dir_handle *)rdir);
+}

libretro-common/include/cdrom/cdrom.h

@@ -0,0 +1,125 @@
+/* Copyright  (C) 2010-2019 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (cdrom.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_CDROM_H
+#define __LIBRETRO_SDK_CDROM_H
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <sys/types.h>
+
+#include <vfs/vfs.h>
+#include <libretro.h>
+#include <retro_common_api.h>
+#include <retro_inline.h>
+
+#include <boolean.h>
+
+struct string_list;
+
+RETRO_BEGIN_DECLS
+
+typedef struct
+{
+   unsigned short g1_timeout;
+   unsigned short g2_timeout;
+   unsigned short g3_timeout;
+} cdrom_group_timeouts_t;
+
+typedef struct
+{
+   unsigned lba_start; /* start of pregap */
+   unsigned lba; /* start of data */
+   unsigned track_size; /* in LBAs */
+   unsigned track_bytes;
+   unsigned char track_num;
+   unsigned char min; /* start of data */
+   unsigned char sec;
+   unsigned char frame;
+   unsigned char mode;
+   bool audio;
+} cdrom_track_t;
+
+typedef struct
+{
+   char drive;
+   unsigned char num_tracks;
+   cdrom_group_timeouts_t timeouts;
+   cdrom_track_t track[99];
+} cdrom_toc_t;
+
+void cdrom_lba_to_msf(unsigned lba, unsigned char *min, unsigned char *sec, unsigned char *frame);
+
+unsigned cdrom_msf_to_lba(unsigned char min, unsigned char sec, unsigned char frame);
+
+void increment_msf(unsigned char *min, unsigned char *sec, unsigned char *frame);
+
+int cdrom_read_subq(libretro_vfs_implementation_file *stream, unsigned char *buf, size_t len);
+
+int cdrom_write_cue(libretro_vfs_implementation_file *stream, char **out_buf, size_t *out_len, char cdrom_drive, unsigned char *num_tracks, cdrom_toc_t *toc);
+
+/* needs 32 bytes for full vendor, product and version */
+int cdrom_get_inquiry(libretro_vfs_implementation_file *stream, char *model, int len, bool *is_cdrom);
+
+int cdrom_read(libretro_vfs_implementation_file *stream, cdrom_group_timeouts_t *timeouts, unsigned char min, unsigned char sec, unsigned char frame, void *s, size_t len, size_t skip);
+
+int cdrom_set_read_speed(libretro_vfs_implementation_file *stream, unsigned speed);
+
+int cdrom_stop(libretro_vfs_implementation_file *stream);
+
+int cdrom_unlock(libretro_vfs_implementation_file *stream);
+
+int cdrom_open_tray(libretro_vfs_implementation_file *stream);
+
+int cdrom_close_tray(libretro_vfs_implementation_file *stream);
+
+/* must be freed by the caller */
+struct string_list* cdrom_get_available_drives(void);
+
+bool cdrom_is_media_inserted(libretro_vfs_implementation_file *stream);
+
+bool cdrom_drive_has_media(const char drive);
+
+void cdrom_get_current_config_core(libretro_vfs_implementation_file *stream);
+
+void cdrom_get_current_config_profiles(libretro_vfs_implementation_file *stream);
+
+void cdrom_get_current_config_cdread(libretro_vfs_implementation_file *stream);
+
+void cdrom_get_current_config_multiread(libretro_vfs_implementation_file *stream);
+
+void cdrom_get_current_config_random_readable(libretro_vfs_implementation_file *stream);
+
+int cdrom_get_sense(libretro_vfs_implementation_file *stream, unsigned char *sense, size_t len);
+
+bool cdrom_set_read_cache(libretro_vfs_implementation_file *stream, bool enabled);
+
+bool cdrom_get_timeouts(libretro_vfs_implementation_file *stream, cdrom_group_timeouts_t *timeouts);
+
+bool cdrom_has_atip(libretro_vfs_implementation_file *stream);
+
+void cdrom_device_fillpath(char *path, size_t len, char drive, unsigned char track, bool is_cue);
+
+RETRO_END_DECLS
+
+#endif

libretro-common/include/compat/getopt.h

@@ -72,4 +72,3 @@ RETRO_END_DECLS
 
 /* pragma once */
 #endif
-

libretro-common/include/compat/intrinsics.h

@@ -41,7 +41,7 @@ RETRO_BEGIN_DECLS
 /* Count Leading Zero, unsigned 16bit input value */
 static INLINE unsigned compat_clz_u16(uint16_t val)
 {
-#ifdef __GNUC__
+#if defined(__GNUC__) && !defined(PS2)
    return __builtin_clz(val << 16 | 0x8000);
 #else
    unsigned ret = 0;
@@ -61,7 +61,7 @@ static INLINE int compat_ctz(unsigned x)
 {
 #if defined(__GNUC__) && !defined(RARCH_CONSOLE)
    return __builtin_ctz(x);
-#elif _MSC_VER >= 1400 && !defined(_XBOX)
+#elif _MSC_VER >= 1400 && !defined(_XBOX) && !defined(__WINRT__)
    unsigned long r = 0;
    _BitScanReverse((unsigned long*)&r, x);
    return (int)r;

libretro-common/include/compat/msvc.h

@@ -39,8 +39,8 @@ extern "C"  {
    int c99_snprintf_retro__(char *outBuf, size_t size, const char *format, ...);
 #endif
 
-/* Pre-MSVC 2010 compilers don't implement vsnprintf in a cross-platform manner? Not sure about this one. */
+/* Pre-MSVC 2008 compilers don't implement vsnprintf in a cross-platform manner? Not sure about this one. */
-#if _MSC_VER < 1600
+#if _MSC_VER < 1500
    #include <stdarg.h>
    #include <stdlib.h>
    #ifndef vsnprintf
@@ -56,6 +56,8 @@ extern "C"  {
 #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.
@@ -125,4 +127,3 @@ typedef int ssize_t;
 
 #endif
 #endif
-

libretro-common/include/compat/msvc/stdint.h

@@ -67,7 +67,6 @@ extern "C" {
 #  endif
 #endif
 
-
 /* 7.18.1 Integer types. */
 
 /* 7.18.1.1 Exact-width integer types. */
@@ -94,7 +93,6 @@ extern "C" {
 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;
@@ -255,4 +253,3 @@ typedef uint64_t  uintmax_t;
 #endif
 
 #endif
-

libretro-common/include/compat/posix_string.h

@@ -29,6 +29,10 @@
 #include <compat/msvc.h>
 #endif
 
+#if defined(PS2)
+#include <compat_ctype.h>
+#endif
+
 RETRO_BEGIN_DECLS
 
 #ifdef _WIN32
@@ -55,7 +59,6 @@ int isblank(int c);
 
 #endif
 
-
 RETRO_END_DECLS
 
 #endif

libretro-common/include/compat/strcasestr.h

@@ -25,6 +25,10 @@
 
 #include <string.h>
 
+#if defined(PS2)
+#include <compat_ctype.h>
+#endif
+
 #if defined(RARCH_INTERNAL) && defined(HAVE_CONFIG_H)
 #include "../../../config.h"
 #endif
@@ -46,4 +50,3 @@ RETRO_END_DECLS
 #endif
 
 #endif
-

libretro-common/include/compat/strl.h

@@ -57,4 +57,3 @@ char *strldup(const char *s, size_t n);
 RETRO_END_DECLS
 
 #endif
-

libretro-common/include/encodings/crc32.h

@@ -31,6 +31,7 @@
 RETRO_BEGIN_DECLS
 
 uint32_t encoding_crc32(uint32_t crc, const uint8_t *buf, size_t len);
+uint32_t file_crc32(uint32_t crc, const char *path);
 
 RETRO_END_DECLS
 

libretro-common/include/file/file_path.h

@@ -0,0 +1,531 @@
+/* Copyright  (C) 2010-2019 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);
+
+/**
+ * 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
+ **/
+void 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}"
+ **/
+void 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.
+ *
+ */
+void 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"
+ **/
+void 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.
+ **/
+void 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);
+
+void 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.
+ **/
+void fill_pathname_join(char *out_path, const char *dir,
+      const char *path, size_t size);
+
+void fill_pathname_join_special_ext(char *out_path,
+      const char *dir,  const char *path,
+      const char *last, const char *ext,
+      size_t size);
+
+void fill_pathname_join_concat_noext(char *out_path,
+      const char *dir, const char *path,
+      const char *concat,
+      size_t size);
+
+void 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).
+ **/
+void fill_pathname_join_delim(char *out_path, const char *dir,
+      const char *path, const char delim, size_t size);
+
+void 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
+ */
+void 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);
+
+/**
+ * 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

libretro-common/include/libretro.h

@@ -128,7 +128,8 @@ extern "C" {
 
 /* LIGHTGUN device is similar to Guncon-2 for PlayStation 2.
  * It reports X/Y coordinates in screen space (similar to the pointer)
- * in the range [-0x8000, 0x7fff] in both axes, with zero being center.
+ * in the range [-0x8000, 0x7fff] in both axes, with zero being center and
+ * -0x8000 being out of bounds.
  * As well as reporting on/off screen state. It features a trigger,
  * start/select buttons, auxiliary action buttons and a
  * directional pad. A forced off-screen shot can be requested for
@@ -139,7 +140,8 @@ extern "C" {
 /* The ANALOG device is an extension to JOYPAD (RetroPad).
  * Similar to DualShock2 it adds two analog sticks and all buttons can
  * be analog. This is treated as a separate device type as it returns
- * axis values in the full analog range of [-0x8000, 0x7fff].
+ * axis values in the full analog range of [-0x7fff, 0x7fff],
+ * although some devices may return -0x8000.
  * Positive X axis is right. Positive Y axis is down.
  * Buttons are returned in the range [0, 0x7fff].
  * Only use ANALOG type when polling for analog values.
@@ -200,6 +202,8 @@ extern "C" {
 #define RETRO_DEVICE_ID_JOYPAD_L3      14
 #define RETRO_DEVICE_ID_JOYPAD_R3      15
 
+#define RETRO_DEVICE_ID_JOYPAD_MASK    256
+
 /* Index / Id values for ANALOG device. */
 #define RETRO_DEVICE_INDEX_ANALOG_LEFT       0
 #define RETRO_DEVICE_INDEX_ANALOG_RIGHT      1
@@ -246,6 +250,7 @@ extern "C" {
 #define RETRO_DEVICE_ID_POINTER_X         0
 #define RETRO_DEVICE_ID_POINTER_Y         1
 #define RETRO_DEVICE_ID_POINTER_PRESSED   2
+#define RETRO_DEVICE_ID_POINTER_COUNT     3
 
 /* Returned from retro_get_region(). */
 #define RETRO_REGION_NTSC  0
@@ -271,6 +276,8 @@ enum retro_language
    RETRO_LANGUAGE_POLISH              = 14,
    RETRO_LANGUAGE_VIETNAMESE          = 15,
    RETRO_LANGUAGE_ARABIC              = 16,
+   RETRO_LANGUAGE_GREEK               = 17,
+   RETRO_LANGUAGE_TURKISH             = 18,
    RETRO_LANGUAGE_LAST,
 
    /* Ensure sizeof(enum) == sizeof(int) */
@@ -450,6 +457,7 @@ enum retro_key
    RETROK_POWER          = 320,
    RETROK_EURO           = 321,
    RETROK_UNDO           = 322,
+   RETROK_OEM_102        = 323,
 
    RETROK_LAST,
 
@@ -481,11 +489,13 @@ enum retro_mod
 /* Environment commands. */
 #define RETRO_ENVIRONMENT_SET_ROTATION  1  /* const unsigned * --
                                             * Sets screen rotation of graphics.
-                                            * Is only implemented if rotation can be accelerated by hardware.
                                             * Valid values are 0, 1, 2, 3, which rotates screen by 0, 90, 180,
                                             * 270 degrees counter-clockwise respectively.
                                             */
 #define RETRO_ENVIRONMENT_GET_OVERSCAN  2  /* bool * --
+                                            * NOTE: As of 2019 this callback is considered deprecated in favor of
+                                            * using core options to manage overscan in a more nuanced, core-specific way.
+                                            *
                                             * Boolean value whether or not the implementation should use overscan,
                                             * or crop away overscan.
                                             */
@@ -604,7 +614,7 @@ enum retro_mod
                                             * Afterward 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.
-					    *
+                                            *
                                             * 'data' points to an array of retro_variable structs
                                             * terminated by a { NULL, NULL } element.
                                             * retro_variable::key should be namespaced to not collide
@@ -657,6 +667,15 @@ enum retro_mod
                                            /* Environment 20 was an obsolete version of SET_AUDIO_CALLBACK.
                                             * It was not used by any known core at the time,
                                             * and was removed from the API. */
+#define RETRO_ENVIRONMENT_SET_FRAME_TIME_CALLBACK 21
+                                           /* const struct retro_frame_time_callback * --
+                                            * Lets the core know how much time has passed since last
+                                            * invocation of retro_run().
+                                            * The frontend can tamper with the timing to fake fast-forward,
+                                            * slow-motion, frame stepping, etc.
+                                            * In this case the delta time will use the reference value
+                                            * in frame_time_callback..
+                                            */
 #define RETRO_ENVIRONMENT_SET_AUDIO_CALLBACK 22
                                            /* const struct retro_audio_callback * --
                                             * Sets an interface which is used to notify a libretro core about audio
@@ -683,15 +702,6 @@ enum retro_mod
                                             * A libretro core using SET_AUDIO_CALLBACK should also make use of
                                             * SET_FRAME_TIME_CALLBACK.
                                             */
-#define RETRO_ENVIRONMENT_SET_FRAME_TIME_CALLBACK 21
-                                           /* const struct retro_frame_time_callback * --
-                                            * Lets the core know how much time has passed since last
-                                            * invocation of retro_run().
-                                            * The frontend can tamper with the timing to fake fast-forward,
-                                            * slow-motion, frame stepping, etc.
-                                            * In this case the delta time will use the reference value
-                                            * in frame_time_callback..
-                                            */
 #define RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE 23
                                            /* struct retro_rumble_interface * --
                                             * Gets an interface which is used by a libretro core to set
@@ -968,7 +978,37 @@ enum retro_mod
                                             * A frontend must make sure that the pointer obtained from this function is
                                             * writeable (and readable).
                                             */
-
+#define RETRO_ENVIRONMENT_GET_HW_RENDER_INTERFACE (41 | RETRO_ENVIRONMENT_EXPERIMENTAL)
+                                           /* const struct retro_hw_render_interface ** --
+                                            * Returns an API specific rendering interface for accessing API specific data.
+                                            * Not all HW rendering APIs support or need this.
+                                            * The contents of the returned pointer is specific to the rendering API
+                                            * being used. See the various headers like libretro_vulkan.h, etc.
+                                            *
+                                            * GET_HW_RENDER_INTERFACE cannot be called before context_reset has been called.
+                                            * Similarly, after context_destroyed callback returns,
+                                            * the contents of the HW_RENDER_INTERFACE are invalidated.
+                                            */
+#define RETRO_ENVIRONMENT_SET_SUPPORT_ACHIEVEMENTS (42 | RETRO_ENVIRONMENT_EXPERIMENTAL)
+                                           /* const bool * --
+                                            * If true, the libretro implementation supports achievements
+                                            * either via memory descriptors set with RETRO_ENVIRONMENT_SET_MEMORY_MAPS
+                                            * or via retro_get_memory_data/retro_get_memory_size.
+                                            *
+                                            * This must be called before the first call to retro_run.
+                                            */
+#define RETRO_ENVIRONMENT_SET_HW_RENDER_CONTEXT_NEGOTIATION_INTERFACE (43 | RETRO_ENVIRONMENT_EXPERIMENTAL)
+                                           /* const struct retro_hw_render_context_negotiation_interface * --
+                                            * Sets an interface which lets the libretro core negotiate with frontend how a context is created.
+                                            * The semantics of this interface depends on which API is used in SET_HW_RENDER earlier.
+                                            * This interface will be used when the frontend is trying to create a HW rendering context,
+                                            * so it will be used after SET_HW_RENDER, but before the context_reset callback.
+                                            */
+#define RETRO_ENVIRONMENT_SET_SERIALIZATION_QUIRKS 44
+                                           /* uint64_t * --
+                                            * Sets quirk flags associated with serialization. The frontend will zero any flags it doesn't
+                                            * recognize or support. Should be set in either retro_init or retro_load_game, but not both.
+                                            */
 #define RETRO_ENVIRONMENT_SET_HW_SHARED_CONTEXT (44 | RETRO_ENVIRONMENT_EXPERIMENTAL)
                                            /* N/A (null) * --
                                             * The frontend will try to use a 'shared' hardware context (mostly applicable
@@ -980,160 +1020,19 @@ enum retro_mod
                                             * This will do nothing on its own until SET_HW_RENDER env callbacks are
                                             * being used.
                                             */
-
 #define RETRO_ENVIRONMENT_GET_VFS_INTERFACE (45 | RETRO_ENVIRONMENT_EXPERIMENTAL)
                                            /* struct retro_vfs_interface_info * --
                                             * Gets access to the VFS interface.
                                             * VFS presence needs to be queried prior to load_game or any
                                             * get_system/save/other_directory being called to let front end know
                                             * core supports VFS before it starts handing out paths.
-                                            * It is recomended to do so in retro_set_environment */
+                                            * It is recomended to do so in retro_set_environment
-
+                                            */
-/* VFS functionality */
-
-/* File paths:
- * File paths passed as parameters when using this api shall be well formed unix-style,
- * using "/" (unquoted forward slash) as directory separator regardless of the platform's native separator.
- * Paths shall also include at least one forward slash ("game.bin" is an invalid path, use "./game.bin" instead).
- * Other than the directory separator, cores shall not make assumptions about path format:
- * "C:/path/game.bin", "http://example.com/game.bin", "#game/game.bin", "./game.bin" (without quotes) are all valid paths.
- * Cores may replace the basename or remove path components from the end, and/or add new components;
- * however, cores shall not append "./", "../" or multiple consecutive forward slashes ("//") to paths they request to front end.
- * The frontend is encouraged to make such paths work as well as it can, but is allowed to give up if the core alters paths too much.
- * Frontends are encouraged, but not required, to support native file system paths (modulo replacing the directory separator, if applicable).
- * Cores are allowed to try using them, but must remain functional if the front rejects such requests.
- * Cores are encouraged to use the libretro-common filestream functions for file I/O,
- * as they seamlessly integrate with VFS, deal with directory separator replacement as appropriate
- * and provide platform-specific fallbacks in cases where front ends do not support VFS. */
-
-/* Opaque file handle
- * Introduced in VFS API v1 */
-struct retro_vfs_file_handle;
-
-/* File open flags
- * Introduced in VFS API v1 */
-#define RETRO_VFS_FILE_ACCESS_READ            (1 << 0) /* Read only mode */
-#define RETRO_VFS_FILE_ACCESS_WRITE           (1 << 1) /* Write only mode, discard contents and overwrites existing file unless RETRO_VFS_FILE_ACCESS_UPDATE is also specified */
-#define RETRO_VFS_FILE_ACCESS_READ_WRITE      (RETRO_VFS_FILE_ACCESS_READ | RETRO_VFS_FILE_ACCESS_WRITE) /* Read-write mode, discard contents and overwrites existing file unless RETRO_VFS_FILE_ACCESS_UPDATE is also specified*/
-#define RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING (1 << 2) /* Prevents discarding content of existing files opened for writing */
-
-/* These are only hints. The frontend may choose to ignore them. Other than RAM/CPU/etc use,
-   and how they react to unlikely external interference (for example someone else writing to that file,
-   or the file's server going down), behavior will not change. */
-#define RETRO_VFS_FILE_ACCESS_HINT_NONE              (0)
-/* Indicate that the file will be accessed many times. The frontend should aggressively cache everything. */
-#define RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS   (1 << 0)
-
-/* Seek positions */
-#define RETRO_VFS_SEEK_POSITION_START    0
-#define RETRO_VFS_SEEK_POSITION_CURRENT  1
-#define RETRO_VFS_SEEK_POSITION_END      2
-
-/* Get path from opaque handle. Returns the exact same path passed to file_open when getting the handle
- * Introduced in VFS API v1 */
-typedef const char *(RETRO_CALLCONV *retro_vfs_get_path_t)(struct retro_vfs_file_handle *stream);
-
-/* Open a file for reading or writing. If path points to a directory, this will
- * fail. Returns the opaque file handle, or NULL for error.
- * Introduced in VFS API v1 */
-typedef struct retro_vfs_file_handle *(RETRO_CALLCONV *retro_vfs_open_t)(const char *path, unsigned mode, unsigned hints);
-
-/* Close the file and release its resources. Must be called if open_file returns non-NULL. Returns 0 on succes, -1 on failure.
- * Whether the call succeeds ot not, the handle passed as parameter becomes invalid and should no longer be used.
- * Introduced in VFS API v1 */
-typedef int (RETRO_CALLCONV *retro_vfs_close_t)(struct retro_vfs_file_handle *stream);
-
-/* Return the size of the file in bytes, or -1 for error.
- * Introduced in VFS API v1 */
-typedef int64_t (RETRO_CALLCONV *retro_vfs_size_t)(struct retro_vfs_file_handle *stream);
-
-/* Get the current read / write position for the file. Returns - 1 for error.
- * Introduced in VFS API v1 */
-typedef int64_t (RETRO_CALLCONV *retro_vfs_tell_t)(struct retro_vfs_file_handle *stream);
-
-/* Set the current read/write position for the file. Returns the new position, -1 for error.
- * Introduced in VFS API v1 */
-typedef int64_t (RETRO_CALLCONV *retro_vfs_seek_t)(struct retro_vfs_file_handle *stream, int64_t offset, int seek_position);
-
-/* Read data from a file. Returns the number of bytes read, or -1 for error.
- * Introduced in VFS API v1 */
-typedef int64_t (RETRO_CALLCONV *retro_vfs_read_t)(struct retro_vfs_file_handle *stream, void *s, uint64_t len);
-
-/* Write data to a file. Returns the number of bytes written, or -1 for error.
- * Introduced in VFS API v1 */
-typedef int64_t (RETRO_CALLCONV *retro_vfs_write_t)(struct retro_vfs_file_handle *stream, const void *s, uint64_t len);
-
-/* Flush pending writes to file, if using buffered IO. Returns 0 on sucess, or -1 on failure.
- * Introduced in VFS API v1 */
-typedef int (RETRO_CALLCONV *retro_vfs_flush_t)(struct retro_vfs_file_handle *stream);
-
-/* Delete the specified file. Returns 0 on success, -1 on failure
- * Introduced in VFS API v1 */
-typedef int (RETRO_CALLCONV *retro_vfs_remove_t)(const char *path);
-
-/* Rename the specified file. Returns 0 on success, -1 on failure
- * Introduced in VFS API v1 */
-typedef int (RETRO_CALLCONV *retro_vfs_rename_t)(const char *old_path, const char *new_path);
-
-struct retro_vfs_interface
-{
-	retro_vfs_get_path_t get_path;
-	retro_vfs_open_t open;
-	retro_vfs_close_t close;
-	retro_vfs_size_t size;
-	retro_vfs_tell_t tell;
-	retro_vfs_seek_t seek;
-	retro_vfs_read_t read;
-	retro_vfs_write_t write;
-	retro_vfs_flush_t flush;
-	retro_vfs_remove_t remove;
-	retro_vfs_rename_t rename;
-};
-
-struct retro_vfs_interface_info
-{
-   /* Set by core: should this be higher than the version the front end supports,
-    * front end will return false in the RETRO_ENVIRONMENT_GET_VFS_INTERFACE call
-    * Introduced in VFS API v1 */
-   uint32_t required_interface_version;
-
-   /* Frontend writes interface pointer here. The frontend also sets the actual
-    * version, must be at least required_interface_version.
-    * Introduced in VFS API v1 */
-   struct retro_vfs_interface *iface;
-};
-
-enum retro_hw_render_interface_type
-{
-	RETRO_HW_RENDER_INTERFACE_VULKAN = 0,
-	RETRO_HW_RENDER_INTERFACE_D3D9   = 1,
-	RETRO_HW_RENDER_INTERFACE_D3D10  = 2,
-	RETRO_HW_RENDER_INTERFACE_D3D11  = 3,
-	RETRO_HW_RENDER_INTERFACE_D3D12  = 4,
-   RETRO_HW_RENDER_INTERFACE_DUMMY  = INT_MAX
-};
-
-/* Base struct. All retro_hw_render_interface_* types
- * contain at least these fields. */
-struct retro_hw_render_interface
-{
-   enum retro_hw_render_interface_type interface_type;
-   unsigned interface_version;
-};
-
-
 #define RETRO_ENVIRONMENT_GET_LED_INTERFACE (46 | RETRO_ENVIRONMENT_EXPERIMENTAL)
                                            /* struct retro_led_interface * --
                                             * Gets an interface which is used by a libretro core to set
                                             * state of LEDs.
                                             */
-
-typedef void (RETRO_CALLCONV *retro_set_led_state_t)(int led, int state);
-struct retro_led_interface
-{
-    retro_set_led_state_t set_led_state;
-};
-
 #define RETRO_ENVIRONMENT_GET_AUDIO_VIDEO_ENABLE (47 | RETRO_ENVIRONMENT_EXPERIMENTAL)
                                            /* int * --
                                             * Tells the core if the frontend wants audio or video.
@@ -1175,12 +1074,377 @@ struct retro_led_interface
                                             *   never need an accurate audio state in the future.
                                             * * State will never be saved when using Hard Disable Audio.
                                             */
-
 #define RETRO_ENVIRONMENT_GET_MIDI_INTERFACE (48 | RETRO_ENVIRONMENT_EXPERIMENTAL)
                                            /* struct retro_midi_interface ** --
                                             * Returns a MIDI interface that can be used for raw data I/O.
                                             */
 
+#define RETRO_ENVIRONMENT_GET_FASTFORWARDING (49 | RETRO_ENVIRONMENT_EXPERIMENTAL)
+                                            /* bool * --
+                                            * Boolean value that indicates whether or not the frontend is in
+                                            * fastforwarding mode.
+                                            */
+
+#define RETRO_ENVIRONMENT_GET_TARGET_REFRESH_RATE (50 | RETRO_ENVIRONMENT_EXPERIMENTAL)
+                                            /* float * --
+                                            * Float value that lets us know what target refresh rate 
+                                            * is curently in use by the frontend.
+                                            *
+                                            * The core can use the returned value to set an ideal 
+                                            * refresh rate/framerate.
+                                            */
+
+#define RETRO_ENVIRONMENT_GET_INPUT_BITMASKS (51 | RETRO_ENVIRONMENT_EXPERIMENTAL)
+                                            /* bool * --
+                                            * Boolean value that indicates whether or not the frontend supports
+                                            * input bitmasks being returned by retro_input_state_t. The advantage
+                                            * of this is that retro_input_state_t has to be only called once to 
+                                            * grab all button states instead of multiple times.
+                                            *
+                                            * If it returns true, you can pass RETRO_DEVICE_ID_JOYPAD_MASK as 'id'
+                                            * to retro_input_state_t (make sure 'device' is set to RETRO_DEVICE_JOYPAD).
+                                            * It will return a bitmask of all the digital buttons.
+                                            */
+
+#define RETRO_ENVIRONMENT_GET_CORE_OPTIONS_VERSION 52
+                                           /* unsigned * --
+                                            * Unsigned value is the API version number of the core options
+                                            * interface supported by the frontend. If callback return false,
+                                            * API version is assumed to be 0.
+                                            *
+                                            * In legacy code, core options are set by passing an array of
+                                            * retro_variable structs to RETRO_ENVIRONMENT_SET_VARIABLES.
+                                            * This may be still be done regardless of the core options
+                                            * interface version.
+                                            *
+                                            * If version is 1 however, core options may instead be set by
+                                            * passing an array of retro_core_option_definition structs to
+                                            * RETRO_ENVIRONMENT_SET_CORE_OPTIONS, or a 2D array of
+                                            * 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.
+                                            */
+
+#define RETRO_ENVIRONMENT_SET_CORE_OPTIONS 53
+                                           /* const struct retro_core_option_definition ** --
+                                            * 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_ENHANCED_CORE_OPTIONS
+                                            * returns an API version of 1.
+                                            * This should be called instead of RETRO_ENVIRONMENT_SET_VARIABLES.
+                                            * 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.
+                                            *
+                                            * 'data' points to an array of retro_core_option_definition structs
+                                            * terminated by a { NULL, NULL, NULL, {{0}}, NULL } element.
+                                            * retro_core_option_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'.
+                                            * retro_core_option_definition::desc should contain a human readable
+                                            * description of the key.
+                                            * retro_core_option_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_definition::values is an array of retro_core_option_value
+                                            * structs terminated by a { NULL, NULL } element.
+                                            * > retro_core_option_definition::values[index].value is an expected option
+                                            *   value.
+                                            * > retro_core_option_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_definition::default_value is the default core option
+                                            * setting. It must match one of the expected option values in the
+                                            * retro_core_option_definition::values array. If it does not, or the
+                                            * 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,
+                                            * and must be less than RETRO_NUM_CORE_OPTION_VALUES_MAX.
+                                            * i.e. it should be feasible to cycle through options
+                                            * without a keyboard.
+                                            *
+                                            * First entry should be treated as a default.
+                                            *
+                                            * Example entry:
+                                            * {
+                                            *     "foo_option",
+                                            *     "Speed hack coprocessor X",
+                                            *     "Provides increased performance at the expense of reduced accuracy",
+                                            * 	  {
+                                            *         { "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_INTL 54
+                                           /* const struct retro_core_options_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_ENHANCED_CORE_OPTIONS
+                                            * returns an API version of 1.
+                                            * This should be called instead of RETRO_ENVIRONMENT_SET_VARIABLES.
+                                            * 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.
+                                            *
+                                            * This is fundamentally the same as RETRO_ENVIRONMENT_SET_CORE_OPTIONS,
+                                            * with the addition of localisation support. The description of the
+                                            * RETRO_ENVIRONMENT_SET_CORE_OPTIONS callback should be consulted
+                                            * for further details.
+                                            *
+                                            * 'data' points to a retro_core_options_intl struct.
+                                            *
+                                            * retro_core_options_intl::us is a pointer to an array of
+                                            * retro_core_option_definition structs defining the US English
+                                            * core options implementation. It must point to a valid array.
+                                            *
+                                            * retro_core_options_intl::local is a pointer to an array of
+                                            * retro_core_option_definition structs defining core options for
+                                            * the current frontend language. It may be NULL (in which case
+                                            * retro_core_options_intl::us is used by the frontend). Any items
+                                            * missing from this array will be read from retro_core_options_intl::us
+                                            * instead.
+                                            *
+                                            * NOTE: Default core option values are always taken from the
+                                            * retro_core_options_intl::us array. Any default values in
+                                            * retro_core_options_intl::local array will be ignored.
+                                            */
+
+#define RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY 55
+                                           /* struct retro_core_option_display * --
+                                            *
+                                            * Allows an implementation to signal the environment to show
+                                            * or hide a variable when displaying core options. This is
+                                            * considered a *suggestion*. The frontend is free to ignore
+                                            * this callback, and its implementation not considered mandatory.
+                                            *
+                                            * 'data' points to a retro_core_option_display struct
+                                            *
+                                            * retro_core_option_display::key is a variable identifier
+                                            * which has already been set by SET_VARIABLES/SET_CORE_OPTIONS.
+                                            *
+                                            * retro_core_option_display::visible is a boolean, specifying
+                                            * whether variable should be displayed
+                                            *
+                                            * Note that all core option variables will be set visible by
+                                            * default when calling SET_VARIABLES/SET_CORE_OPTIONS.
+                                            */
+
+/* VFS functionality */
+
+/* File paths:
+ * File paths passed as parameters when using this API shall be well formed UNIX-style,
+ * using "/" (unquoted forward slash) as directory separator regardless of the platform's native separator.
+ * Paths shall also include at least one forward slash ("game.bin" is an invalid path, use "./game.bin" instead).
+ * Other than the directory separator, cores shall not make assumptions about path format:
+ * "C:/path/game.bin", "http://example.com/game.bin", "#game/game.bin", "./game.bin" (without quotes) are all valid paths.
+ * Cores may replace the basename or remove path components from the end, and/or add new components;
+ * however, cores shall not append "./", "../" or multiple consecutive forward slashes ("//") to paths they request to front end.
+ * The frontend is encouraged to make such paths work as well as it can, but is allowed to give up if the core alters paths too much.
+ * Frontends are encouraged, but not required, to support native file system paths (modulo replacing the directory separator, if applicable).
+ * Cores are allowed to try using them, but must remain functional if the front rejects such requests.
+ * Cores are encouraged to use the libretro-common filestream functions for file I/O,
+ * as they seamlessly integrate with VFS, deal with directory separator replacement as appropriate
+ * and provide platform-specific fallbacks in cases where front ends do not support VFS. */
+
+/* Opaque file handle
+ * Introduced in VFS API v1 */
+struct retro_vfs_file_handle;
+
+/* Opaque directory handle
+ * Introduced in VFS API v3 */
+struct retro_vfs_dir_handle;
+
+/* File open flags
+ * Introduced in VFS API v1 */
+#define RETRO_VFS_FILE_ACCESS_READ            (1 << 0) /* Read only mode */
+#define RETRO_VFS_FILE_ACCESS_WRITE           (1 << 1) /* Write only mode, discard contents and overwrites existing file unless RETRO_VFS_FILE_ACCESS_UPDATE is also specified */
+#define RETRO_VFS_FILE_ACCESS_READ_WRITE      (RETRO_VFS_FILE_ACCESS_READ | RETRO_VFS_FILE_ACCESS_WRITE) /* Read-write mode, discard contents and overwrites existing file unless RETRO_VFS_FILE_ACCESS_UPDATE is also specified*/
+#define RETRO_VFS_FILE_ACCESS_UPDATE_EXISTING (1 << 2) /* Prevents discarding content of existing files opened for writing */
+
+/* These are only hints. The frontend may choose to ignore them. Other than RAM/CPU/etc use,
+   and how they react to unlikely external interference (for example someone else writing to that file,
+   or the file's server going down), behavior will not change. */
+#define RETRO_VFS_FILE_ACCESS_HINT_NONE              (0)
+/* Indicate that the file will be accessed many times. The frontend should aggressively cache everything. */
+#define RETRO_VFS_FILE_ACCESS_HINT_FREQUENT_ACCESS   (1 << 0)
+
+/* Seek positions */
+#define RETRO_VFS_SEEK_POSITION_START    0
+#define RETRO_VFS_SEEK_POSITION_CURRENT  1
+#define RETRO_VFS_SEEK_POSITION_END      2
+
+/* stat() result flags
+ * Introduced in VFS API v3 */
+#define RETRO_VFS_STAT_IS_VALID               (1 << 0)
+#define RETRO_VFS_STAT_IS_DIRECTORY           (1 << 1)
+#define RETRO_VFS_STAT_IS_CHARACTER_SPECIAL   (1 << 2)
+
+/* Get path from opaque handle. Returns the exact same path passed to file_open when getting the handle
+ * Introduced in VFS API v1 */
+typedef const char *(RETRO_CALLCONV *retro_vfs_get_path_t)(struct retro_vfs_file_handle *stream);
+
+/* Open a file for reading or writing. If path points to a directory, this will
+ * fail. Returns the opaque file handle, or NULL for error.
+ * Introduced in VFS API v1 */
+typedef struct retro_vfs_file_handle *(RETRO_CALLCONV *retro_vfs_open_t)(const char *path, unsigned mode, unsigned hints);
+
+/* Close the file and release its resources. Must be called if open_file returns non-NULL. Returns 0 on success, -1 on failure.
+ * Whether the call succeeds ot not, the handle passed as parameter becomes invalid and should no longer be used.
+ * Introduced in VFS API v1 */
+typedef int (RETRO_CALLCONV *retro_vfs_close_t)(struct retro_vfs_file_handle *stream);
+
+/* Return the size of the file in bytes, or -1 for error.
+ * Introduced in VFS API v1 */
+typedef int64_t (RETRO_CALLCONV *retro_vfs_size_t)(struct retro_vfs_file_handle *stream);
+
+/* Truncate file to specified size. Returns 0 on success or -1 on error
+ * Introduced in VFS API v2 */
+typedef int64_t (RETRO_CALLCONV *retro_vfs_truncate_t)(struct retro_vfs_file_handle *stream, int64_t length);
+
+/* Get the current read / write position for the file. Returns -1 for error.
+ * Introduced in VFS API v1 */
+typedef int64_t (RETRO_CALLCONV *retro_vfs_tell_t)(struct retro_vfs_file_handle *stream);
+
+/* Set the current read/write position for the file. Returns the new position, -1 for error.
+ * Introduced in VFS API v1 */
+typedef int64_t (RETRO_CALLCONV *retro_vfs_seek_t)(struct retro_vfs_file_handle *stream, int64_t offset, int seek_position);
+
+/* Read data from a file. Returns the number of bytes read, or -1 for error.
+ * Introduced in VFS API v1 */
+typedef int64_t (RETRO_CALLCONV *retro_vfs_read_t)(struct retro_vfs_file_handle *stream, void *s, uint64_t len);
+
+/* Write data to a file. Returns the number of bytes written, or -1 for error.
+ * Introduced in VFS API v1 */
+typedef int64_t (RETRO_CALLCONV *retro_vfs_write_t)(struct retro_vfs_file_handle *stream, const void *s, uint64_t len);
+
+/* Flush pending writes to file, if using buffered IO. Returns 0 on sucess, or -1 on failure.
+ * Introduced in VFS API v1 */
+typedef int (RETRO_CALLCONV *retro_vfs_flush_t)(struct retro_vfs_file_handle *stream);
+
+/* Delete the specified file. Returns 0 on success, -1 on failure
+ * Introduced in VFS API v1 */
+typedef int (RETRO_CALLCONV *retro_vfs_remove_t)(const char *path);
+
+/* Rename the specified file. Returns 0 on success, -1 on failure
+ * Introduced in VFS API v1 */
+typedef int (RETRO_CALLCONV *retro_vfs_rename_t)(const char *old_path, const char *new_path);
+
+/* Stat the specified file. Retruns a bitmask of RETRO_VFS_STAT_* flags, none are set if path was not valid.
+ * Additionally stores file size in given variable, unless NULL is given.
+ * Introduced in VFS API v3 */
+typedef int (RETRO_CALLCONV *retro_vfs_stat_t)(const char *path, int32_t *size);
+
+/* Create the specified directory. Returns 0 on success, -1 on unknown failure, -2 if already exists.
+ * Introduced in VFS API v3 */
+typedef int (RETRO_CALLCONV *retro_vfs_mkdir_t)(const char *dir);
+
+/* Open the specified directory for listing. Returns the opaque dir handle, or NULL for error.
+ * Support for the include_hidden argument may vary depending on the platform.
+ * Introduced in VFS API v3 */
+typedef struct retro_vfs_dir_handle *(RETRO_CALLCONV *retro_vfs_opendir_t)(const char *dir, bool include_hidden);
+
+/* Read the directory entry at the current position, and move the read pointer to the next position.
+ * Returns true on success, false if already on the last entry.
+ * Introduced in VFS API v3 */
+typedef bool (RETRO_CALLCONV *retro_vfs_readdir_t)(struct retro_vfs_dir_handle *dirstream);
+
+/* Get the name of the last entry read. Returns a string on success, or NULL for error.
+ * The returned string pointer is valid until the next call to readdir or closedir.
+ * Introduced in VFS API v3 */
+typedef const char *(RETRO_CALLCONV *retro_vfs_dirent_get_name_t)(struct retro_vfs_dir_handle *dirstream);
+
+/* Check if the last entry read was a directory. Returns true if it was, false otherwise (or on error).
+ * Introduced in VFS API v3 */
+typedef bool (RETRO_CALLCONV *retro_vfs_dirent_is_dir_t)(struct retro_vfs_dir_handle *dirstream);
+
+/* Close the directory and release its resources. Must be called if opendir returns non-NULL. Returns 0 on success, -1 on failure.
+ * Whether the call succeeds ot not, the handle passed as parameter becomes invalid and should no longer be used.
+ * Introduced in VFS API v3 */
+typedef int (RETRO_CALLCONV *retro_vfs_closedir_t)(struct retro_vfs_dir_handle *dirstream);
+
+struct retro_vfs_interface
+{
+   /* VFS API v1 */
+	retro_vfs_get_path_t get_path;
+	retro_vfs_open_t open;
+	retro_vfs_close_t close;
+	retro_vfs_size_t size;
+	retro_vfs_tell_t tell;
+	retro_vfs_seek_t seek;
+	retro_vfs_read_t read;
+	retro_vfs_write_t write;
+	retro_vfs_flush_t flush;
+	retro_vfs_remove_t remove;
+	retro_vfs_rename_t rename;
+   /* VFS API v2 */
+   retro_vfs_truncate_t truncate;
+   /* VFS API v3 */
+   retro_vfs_stat_t stat;
+   retro_vfs_mkdir_t mkdir;
+   retro_vfs_opendir_t opendir;
+   retro_vfs_readdir_t readdir;
+   retro_vfs_dirent_get_name_t dirent_get_name;
+   retro_vfs_dirent_is_dir_t dirent_is_dir;
+   retro_vfs_closedir_t closedir;
+};
+
+struct retro_vfs_interface_info
+{
+   /* Set by core: should this be higher than the version the front end supports,
+    * front end will return false in the RETRO_ENVIRONMENT_GET_VFS_INTERFACE call
+    * Introduced in VFS API v1 */
+   uint32_t required_interface_version;
+
+   /* Frontend writes interface pointer here. The frontend also sets the actual
+    * version, must be at least required_interface_version.
+    * Introduced in VFS API v1 */
+   struct retro_vfs_interface *iface;
+};
+
+enum retro_hw_render_interface_type
+{
+	RETRO_HW_RENDER_INTERFACE_VULKAN = 0,
+	RETRO_HW_RENDER_INTERFACE_D3D9   = 1,
+	RETRO_HW_RENDER_INTERFACE_D3D10  = 2,
+	RETRO_HW_RENDER_INTERFACE_D3D11  = 3,
+	RETRO_HW_RENDER_INTERFACE_D3D12  = 4,
+   RETRO_HW_RENDER_INTERFACE_GSKIT_PS2  = 5,
+   RETRO_HW_RENDER_INTERFACE_DUMMY  = INT_MAX
+};
+
+/* Base struct. All retro_hw_render_interface_* types
+ * contain at least these fields. */
+struct retro_hw_render_interface
+{
+   enum retro_hw_render_interface_type interface_type;
+   unsigned interface_version;
+};
+
+typedef void (RETRO_CALLCONV *retro_set_led_state_t)(int led, int state);
+struct retro_led_interface
+{
+    retro_set_led_state_t set_led_state;
+};
+
 /* Retrieves the current state of the MIDI input.
  * Returns true if it's enabled, false otherwise. */
 typedef bool (RETRO_CALLCONV *retro_midi_input_enabled_t)(void);
@@ -1211,27 +1475,6 @@ struct retro_midi_interface
    retro_midi_flush_t flush;
 };
 
-#define RETRO_ENVIRONMENT_GET_HW_RENDER_INTERFACE (41 | RETRO_ENVIRONMENT_EXPERIMENTAL)
-                                           /* const struct retro_hw_render_interface ** --
-                                            * Returns an API specific rendering interface for accessing API specific data.
-                                            * Not all HW rendering APIs support or need this.
-                                            * The contents of the returned pointer is specific to the rendering API
-                                            * being used. See the various headers like libretro_vulkan.h, etc.
-                                            *
-                                            * GET_HW_RENDER_INTERFACE cannot be called before context_reset has been called.
-                                            * Similarly, after context_destroyed callback returns,
-                                            * the contents of the HW_RENDER_INTERFACE are invalidated.
-                                            */
-
-#define RETRO_ENVIRONMENT_SET_SUPPORT_ACHIEVEMENTS (42 | RETRO_ENVIRONMENT_EXPERIMENTAL)
-                                           /* const bool * --
-                                            * If true, the libretro implementation supports achievements
-                                            * either via memory descriptors set with RETRO_ENVIRONMENT_SET_MEMORY_MAPS
-                                            * or via retro_get_memory_data/retro_get_memory_size.
-                                            *
-                                            * This must be called before the first call to retro_run.
-                                            */
-
 enum retro_hw_render_context_negotiation_interface_type
 {
    RETRO_HW_RENDER_CONTEXT_NEGOTIATION_INTERFACE_VULKAN = 0,
@@ -1245,13 +1488,6 @@ struct retro_hw_render_context_negotiation_interface
    enum retro_hw_render_context_negotiation_interface_type interface_type;
    unsigned interface_version;
 };
-#define RETRO_ENVIRONMENT_SET_HW_RENDER_CONTEXT_NEGOTIATION_INTERFACE (43 | RETRO_ENVIRONMENT_EXPERIMENTAL)
-                                           /* const struct retro_hw_render_context_negotiation_interface * --
-                                            * Sets an interface which lets the libretro core negotiate with frontend how a context is created.
-                                            * The semantics of this interface depends on which API is used in SET_HW_RENDER earlier.
-                                            * This interface will be used when the frontend is trying to create a HW rendering context,
-                                            * so it will be used after SET_HW_RENDER, but before the context_reset callback.
-                                            */
 
 /* Serialized state is incomplete in some way. Set if serialization is
  * usable in typical end-user cases but should not be relied upon to
@@ -1277,20 +1513,17 @@ struct retro_hw_render_context_negotiation_interface
  * dependence */
 #define RETRO_SERIALIZATION_QUIRK_PLATFORM_DEPENDENT (1 << 6)
 
-#define RETRO_ENVIRONMENT_SET_SERIALIZATION_QUIRKS 44
+#define RETRO_MEMDESC_CONST      (1 << 0)   /* The frontend will never change this memory area once retro_load_game has returned. */
-                                           /* uint64_t * --
+#define RETRO_MEMDESC_BIGENDIAN  (1 << 1)   /* The memory area contains big endian data. Default is little endian. */
-                                            * Sets quirk flags associated with serialization. The frontend will zero any flags it doesn't
+#define RETRO_MEMDESC_SYSTEM_RAM (1 << 2)   /* The memory area is system RAM.  This is main RAM of the gaming system. */
-                                            * recognize or support. Should be set in either retro_init or retro_load_game, but not both.
+#define RETRO_MEMDESC_SAVE_RAM   (1 << 3)   /* The memory area is save RAM. This RAM is usually found on a game cartridge, backed up by a battery. */
-                                            */
+#define RETRO_MEMDESC_VIDEO_RAM  (1 << 4)   /* The memory area is video RAM (VRAM) */
-
+#define RETRO_MEMDESC_ALIGN_2    (1 << 16)  /* All memory access in this area is aligned to their own size, or 2, whichever is smaller. */
-#define RETRO_MEMDESC_CONST     (1 << 0)   /* The frontend will never change this memory area once retro_load_game has returned. */
+#define RETRO_MEMDESC_ALIGN_4    (2 << 16)
-#define RETRO_MEMDESC_BIGENDIAN (1 << 1)   /* The memory area contains big endian data. Default is little endian. */
+#define RETRO_MEMDESC_ALIGN_8    (3 << 16)
-#define RETRO_MEMDESC_ALIGN_2   (1 << 16)  /* All memory access in this area is aligned to their own size, or 2, whichever is smaller. */
+#define RETRO_MEMDESC_MINSIZE_2  (1 << 24)  /* All memory in this region is accessed at least 2 bytes at the time. */
-#define RETRO_MEMDESC_ALIGN_4   (2 << 16)
+#define RETRO_MEMDESC_MINSIZE_4  (2 << 24)
-#define RETRO_MEMDESC_ALIGN_8   (3 << 16)
+#define RETRO_MEMDESC_MINSIZE_8  (3 << 24)
-#define RETRO_MEMDESC_MINSIZE_2 (1 << 24)  /* All memory in this region is accessed at least 2 bytes at the time. */
-#define RETRO_MEMDESC_MINSIZE_4 (2 << 24)
-#define RETRO_MEMDESC_MINSIZE_8 (3 << 24)
 struct retro_memory_descriptor
 {
    uint64_t flags;
@@ -2190,17 +2423,26 @@ struct retro_system_info
                                    * Typically used for a GUI to filter
                                    * out extensions. */
 
-   /* If true, retro_load_game() is guaranteed to provide a valid pathname
+   /* Libretro cores that need to have direct access to their content
-    * in retro_game_info::path.
+    * files, including cores which use the path of the content files to
-    * ::data and ::size are both invalid.
+    * determine the paths of other files, should set need_fullpath to true.
     *
-    * If false, ::data and ::size are guaranteed to be valid, but ::path
+    * Cores should strive for setting need_fullpath to false,
-    * might not be valid.
+    * as it allows the frontend to perform patching, etc.
     *
-    * This is typically set to true for libretro implementations that must
+    * If need_fullpath is true and retro_load_game() is called:
-    * load from file.
+    *    - retro_game_info::path is guaranteed to have a valid path
-    * Implementations should strive for setting this to false, as it allows
+    *    - retro_game_info::data and retro_game_info::size are invalid
-    * the frontend to perform patching, etc. */
+    *
+    * If need_fullpath is false and retro_load_game() is called:
+    *    - retro_game_info::path may be NULL
+    *    - retro_game_info::data and retro_game_info::size are guaranteed
+    *      to be valid
+    *
+    * See also:
+    *    - RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY
+    *    - RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY
+    */
    bool        need_fullpath;
 
    /* If true, the frontend is not allowed to extract any archives before
@@ -2251,6 +2493,64 @@ struct retro_variable
    const char *value;
 };
 
+struct retro_core_option_display
+{
+   /* Variable to configure in RETRO_ENVIRONMENT_SET_CORE_OPTIONS_DISPLAY */
+   const char *key;
+
+   /* Specifies whether variable should be displayed
+    * when presenting core options to the user */
+   bool visible;
+};
+
+/* Maximum number of values permitted for a core option
+ * NOTE: This may be increased on a core-by-core basis
+ * if required (doing so has no effect on the frontend) */
+#define RETRO_NUM_CORE_OPTION_VALUES_MAX 128
+
+struct retro_core_option_value
+{
+   /* Expected option value */
+   const char *value;
+
+   /* Human-readable value label. If NULL, value itself
+    * will be displayed by the frontend */
+   const char *label;
+};
+
+struct retro_core_option_definition
+{
+   /* Variable to query in RETRO_ENVIRONMENT_GET_VARIABLE. */
+   const char *key;
+
+   /* Human-readable core option description (used as menu label) */
+   const char *desc;
+
+   /* Human-readable core option information (used as menu sublabel) */
+   const char *info;
+
+   /* 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_intl
+{
+   /* Pointer to an array of retro_core_option_definition structs
+    * - US English implementation
+    * - Must point to a valid array */
+   struct retro_core_option_definition *us;
+
+   /* Pointer to an array of retro_core_option_definition structs
+    * - Implementation for current frontend language
+    * - May be NULL */
+   struct retro_core_option_definition *local;
+};
+
 struct retro_game_info
 {
    const char *path;       /* Path to game, UTF-8 encoded.

libretro-common/include/lists/dir_list.h

@@ -0,0 +1,87 @@
+/* Copyright  (C) 2010-2018 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (dir_list.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_DIR_LIST_H
+#define __LIBRETRO_SDK_DIR_LIST_H
+
+#include <retro_common_api.h>
+
+#include <lists/string_list.h>
+
+RETRO_BEGIN_DECLS
+
+/**
+ * dir_list_append:
+ * @list               : existing list to append to.
+ * @dir                : directory path.
+ * @ext                : allowed extensions of file directory entries to include.
+ * @include_dirs       : include directories as part of the finished directory listing?
+ * @include_hidden     : include hidden files and directories as part of the finished directory listing?
+ * @include_compressed : Only include files which match ext. Do not try to match compressed files, etc.
+ * @recursive          : list directory contents recursively
+ *
+ * Create a directory listing, appending to an existing list
+ *
+ * Returns: true success, false in case of error.
+ **/
+bool dir_list_append(struct string_list *list, const char *dir, const char *ext,
+      bool include_dirs, bool include_hidden, bool include_compressed, bool recursive);
+
+/**
+ * dir_list_new:
+ * @dir                : directory path.
+ * @ext                : allowed extensions of file directory entries to include.
+ * @include_dirs       : include directories as part of the finished directory listing?
+ * @include_hidden     : include hidden files and directories as part of the finished directory listing?
+ * @include_compressed : include compressed files, even when not part of ext.
+ * @recursive          : list directory contents recursively
+ *
+ * Create a directory listing.
+ *
+ * Returns: pointer to a directory listing of type 'struct string_list *' on success,
+ * NULL in case of error. Has to be freed manually.
+ **/
+struct string_list *dir_list_new(const char *dir, const char *ext,
+      bool include_dirs, bool include_hidden, bool include_compressed, bool recursive);
+
+/**
+ * dir_list_sort:
+ * @list      : pointer to the directory listing.
+ * @dir_first : move the directories in the listing to the top?
+ *
+ * Sorts a directory listing.
+ *
+ **/
+void dir_list_sort(struct string_list *list, bool dir_first);
+
+/**
+ * dir_list_free:
+ * @list : pointer to the directory listing
+ *
+ * Frees a directory listing.
+ *
+ **/
+void dir_list_free(struct string_list *list);
+
+RETRO_END_DECLS
+
+#endif

libretro-common/include/lists/string_list.h

@@ -0,0 +1,162 @@
+/* Copyright  (C) 2010-2018 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (string_list.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_STRING_LIST_H
+#define __LIBRETRO_SDK_STRING_LIST_H
+
+#include <retro_common_api.h>
+
+#include <boolean.h>
+#include <stdlib.h>
+#include <stddef.h>
+
+RETRO_BEGIN_DECLS
+
+union string_list_elem_attr
+{
+   bool  b;
+   int   i;
+   void *p;
+};
+
+struct string_list_elem
+{
+   char *data;
+   union string_list_elem_attr attr;
+};
+
+struct string_list
+{
+   struct string_list_elem *elems;
+   size_t size;
+   size_t cap;
+};
+
+/**
+ * string_list_find_elem:
+ * @list             : pointer to string list
+ * @elem             : element to find inside the string list.
+ *
+ * Searches for an element (@elem) inside the string list.
+ *
+ * Returns: true (1) if element could be found, otherwise false (0).
+ */
+int string_list_find_elem(const struct string_list *list, const char *elem);
+
+/**
+ * string_list_find_elem_prefix:
+ * @list             : pointer to string list
+ * @prefix           : prefix to append to @elem
+ * @elem             : element to find inside the string list.
+ *
+ * Searches for an element (@elem) inside the string list. Will
+ * also search for the same element prefixed by @prefix.
+ *
+ * Returns: true (1) if element could be found, otherwise false (0).
+ */
+bool string_list_find_elem_prefix(const struct string_list *list,
+      const char *prefix, const char *elem);
+
+/**
+ * string_split:
+ * @str              : string to turn into a string list
+ * @delim            : delimiter character to use for splitting the string.
+ *
+ * Creates a new string list based on string @str, delimited by @delim.
+ *
+ * Returns: new string list if successful, otherwise NULL.
+ */
+struct string_list *string_split(const char *str, const char *delim);
+
+/**
+ * string_list_new:
+ *
+ * Creates a new string list. Has to be freed manually.
+ *
+ * Returns: new string list if successful, otherwise NULL.
+ */
+struct string_list *string_list_new(void);
+
+/**
+ * string_list_append:
+ * @list             : pointer to string list
+ * @elem             : element to add to the string list
+ * @attr             : attributes of new element.
+ *
+ * Appends a new element to the string list.
+ *
+ * Returns: true (1) if successful, otherwise false (0).
+ **/
+bool string_list_append(struct string_list *list, const char *elem,
+      union string_list_elem_attr attr);
+
+/**
+ * string_list_append_n:
+ * @list             : pointer to string list
+ * @elem             : element to add to the string list
+ * @length           : read at most this many bytes from elem
+ * @attr             : attributes of new element.
+ *
+ * Appends a new element to the string list.
+ *
+ * Returns: true (1) if successful, otherwise false (0).
+ **/
+bool string_list_append_n(struct string_list *list, const char *elem,
+      unsigned length, union string_list_elem_attr attr);
+
+/**
+ * string_list_free
+ * @list             : pointer to string list object
+ *
+ * Frees a string list.
+ */
+void string_list_free(struct string_list *list);
+
+/**
+ * string_list_join_concat:
+ * @buffer           : buffer that @list will be joined to.
+ * @size             : length of @buffer.
+ * @list             : pointer to string list.
+ * @delim            : delimiter character for @list.
+ *
+ * A string list will be joined/concatenated as a
+ * string to @buffer, delimited by @delim.
+ */
+void string_list_join_concat(char *buffer, size_t size,
+      const struct string_list *list, const char *sep);
+
+/**
+ * string_list_set:
+ * @list             : pointer to string list
+ * @idx              : index of element in string list
+ * @str              : value for the element.
+ *
+ * Set value of element inside string list.
+ **/
+void string_list_set(struct string_list *list, unsigned idx,
+      const char *str);
+
+struct string_list *string_list_clone(const struct string_list *src);
+
+RETRO_END_DECLS
+
+#endif

libretro-common/include/memalign.h

@@ -0,0 +1,40 @@
+/* Copyright  (C) 2010-2018 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (memalign.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_MEMALIGN_H
+#define _LIBRETRO_MEMALIGN_H
+
+#include <stddef.h>
+
+#include <retro_common_api.h>
+
+RETRO_BEGIN_DECLS
+
+void *memalign_alloc(size_t boundary, size_t size);
+
+void *memalign_alloc_aligned(size_t size);
+
+void memalign_free(void *ptr);
+
+RETRO_END_DECLS
+
+#endif

libretro-common/include/memmap.h

@@ -26,7 +26,7 @@
 #include <stdio.h>
 #include <stdint.h>
 
-#if defined(__CELLOS_LV2__) || defined(PSP) || defined(GEKKO) || defined(VITA) || defined(_XBOX) || defined(_3DS) || defined(WIIU) || defined(SWITCH)
+#if defined(__CELLOS_LV2__) || defined(PSP) || defined(PS2) || defined(GEKKO) || defined(VITA) || defined(_XBOX) || defined(_3DS) || defined(WIIU) || defined(SWITCH)
 /* No mman available */
 #elif defined(_WIN32) && !defined(_XBOX)
 #include <windows.h>

libretro-common/include/retro_assert.h

@@ -0,0 +1,37 @@
+/* Copyright  (C) 2010-2018 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) do { \
+   if (!(cond)) { printf("Assertion failed at %s:%d.\n", __FILE__, __LINE__); abort(); } \
+} while(0)
+#else
+#define retro_assert(cond) assert(cond)
+#endif
+
+#endif

libretro-common/include/retro_common.h

@@ -34,4 +34,3 @@ in a public API, you may need this.
 #include <compat/msvc.h>
 
 #endif
-

libretro-common/include/retro_common_api.h

@@ -113,6 +113,5 @@ Of course, another school of thought is that you should do as little damage as p
 in as few places as possible...
 */
 
-
 /* _LIBRETRO_COMMON_RETRO_COMMON_API_H */
 #endif

libretro-common/include/retro_dirent.h

@@ -0,0 +1,78 @@
+/* Copyright  (C) 2010-2019 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (retro_dirent.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_DIRENT_H
+#define __RETRO_DIRENT_H
+
+#include <libretro.h>
+#include <retro_common_api.h>
+#include <retro_miscellaneous.h>
+
+#include <boolean.h>
+
+RETRO_BEGIN_DECLS
+
+#define DIRENT_REQUIRED_VFS_VERSION 3
+
+void dirent_vfs_init(const struct retro_vfs_interface_info* vfs_info);
+
+typedef struct RDIR RDIR;
+
+/**
+ *
+ * retro_opendir:
+ * @name         : path to the directory to open.
+ *
+ * Opens a directory for reading. Tidy up with retro_closedir.
+ *
+ * Returns: RDIR pointer on success, NULL if name is not a
+ * valid directory, null itself or the empty string.
+ */
+struct RDIR *retro_opendir(const char *name);
+
+struct RDIR *retro_opendir_include_hidden(const char *name, bool include_hidden);
+
+int retro_readdir(struct RDIR *rdir);
+
+/* Deprecated, returns false, left for compatibility */
+bool retro_dirent_error(struct RDIR *rdir);
+
+const char *retro_dirent_get_name(struct RDIR *rdir);
+
+/**
+ *
+ * retro_dirent_is_dir:
+ * @rdir         : pointer to the directory entry.
+ * @unused       : deprecated, included for compatibility reasons, pass NULL
+ *
+ * Is the directory listing entry a directory?
+ *
+ * Returns: true if directory listing entry is
+ * a directory, false if not.
+ */
+bool retro_dirent_is_dir(struct RDIR *rdir, const char *unused);
+
+void retro_closedir(struct RDIR *rdir);
+
+RETRO_END_DECLS
+
+#endif

libretro-common/include/retro_endianness.h

@@ -0,0 +1,258 @@
+/* Copyright  (C) 2010-2018 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (retro_endianness.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_ENDIANNESS_H
+#define __LIBRETRO_SDK_ENDIANNESS_H
+
+#include <retro_inline.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#if defined(_MSC_VER) && _MSC_VER > 1200
+#define SWAP16 _byteswap_ushort
+#define SWAP32 _byteswap_ulong
+#else
+#define SWAP16(x) ((uint16_t)(                  \
+         (((uint16_t)(x) & 0x00ff) << 8)      | \
+         (((uint16_t)(x) & 0xff00) >> 8)        \
+          ))
+#define SWAP32(x) ((uint32_t)(           \
+         (((uint32_t)(x) & 0x000000ff) << 24) | \
+         (((uint32_t)(x) & 0x0000ff00) <<  8) | \
+         (((uint32_t)(x) & 0x00ff0000) >>  8) | \
+         (((uint32_t)(x) & 0xff000000) >> 24)   \
+         ))
+#endif
+
+#if defined(_MSC_VER) && _MSC_VER <= 1200
+#define SWAP64(val)                                             \
+	((((uint64_t)(val) & 0x00000000000000ff) << 56)      \
+	 | (((uint64_t)(val) & 0x000000000000ff00) << 40)    \
+	 | (((uint64_t)(val) & 0x0000000000ff0000) << 24)    \
+	 | (((uint64_t)(val) & 0x00000000ff000000) << 8)     \
+	 | (((uint64_t)(val) & 0x000000ff00000000) >> 8)     \
+	 | (((uint64_t)(val) & 0x0000ff0000000000) >> 24)    \
+	 | (((uint64_t)(val) & 0x00ff000000000000) >> 40)    \
+	 | (((uint64_t)(val) & 0xff00000000000000) >> 56))
+#else
+#define SWAP64(val)                                             \
+	((((uint64_t)(val) & 0x00000000000000ffULL) << 56)      \
+	 | (((uint64_t)(val) & 0x000000000000ff00ULL) << 40)    \
+	 | (((uint64_t)(val) & 0x0000000000ff0000ULL) << 24)    \
+	 | (((uint64_t)(val) & 0x00000000ff000000ULL) << 8)     \
+	 | (((uint64_t)(val) & 0x000000ff00000000ULL) >> 8)     \
+	 | (((uint64_t)(val) & 0x0000ff0000000000ULL) >> 24)    \
+	 | (((uint64_t)(val) & 0x00ff000000000000ULL) >> 40)    \
+	 | (((uint64_t)(val) & 0xff00000000000000ULL) >> 56))
+#endif
+
+/**
+ * is_little_endian:
+ *
+ * Checks if the system is little endian or big-endian.
+ *
+ * Returns: greater than 0 if little-endian,
+ * otherwise big-endian.
+ **/
+#if defined(MSB_FIRST)
+#define is_little_endian() (0)
+#elif defined(__x86_64) || defined(__i386) || defined(_M_IX86) || defined(_M_X64)
+#define is_little_endian() (1)
+#else
+static INLINE uint8_t is_little_endian(void)
+{
+   union
+   {
+      uint16_t x;
+      uint8_t y[2];
+   } u;
+
+   u.x = 1;
+   return u.y[0];
+}
+#endif
+
+/**
+ * swap_if_big64:
+ * @val        : unsigned 64-bit value
+ *
+ * Byteswap unsigned 64-bit value if system is big-endian.
+ *
+ * Returns: Byteswapped value in case system is big-endian,
+ * otherwise returns same value.
+ **/
+
+#if defined(MSB_FIRST)
+#define swap_if_big64(val) (SWAP64(val))
+#elif defined(__x86_64) || defined(__i386) || defined(_M_IX86) || defined(_M_X64)
+#define swap_if_big64(val) (val)
+#else
+static INLINE uint64_t swap_if_big64(uint64_t val)
+{
+   if (is_little_endian())
+      return val;
+   return SWAP64(val);
+}
+#endif
+
+/**
+ * swap_if_big32:
+ * @val        : unsigned 32-bit value
+ *
+ * Byteswap unsigned 32-bit value if system is big-endian.
+ *
+ * Returns: Byteswapped value in case system is big-endian,
+ * otherwise returns same value.
+ **/
+
+#if defined(MSB_FIRST)
+#define swap_if_big32(val) (SWAP32(val))
+#elif defined(__x86_64) || defined(__i386) || defined(_M_IX86) || defined(_M_X64)
+#define swap_if_big32(val) (val)
+#else
+static INLINE uint32_t swap_if_big32(uint32_t val)
+{
+   if (is_little_endian())
+      return val;
+   return SWAP32(val);
+}
+#endif
+
+/**
+ * swap_if_little64:
+ * @val        : unsigned 64-bit value
+ *
+ * Byteswap unsigned 64-bit value if system is little-endian.
+ *
+ * Returns: Byteswapped value in case system is little-endian,
+ * otherwise returns same value.
+ **/
+
+#if defined(MSB_FIRST)
+#define swap_if_little64(val) (val)
+#elif defined(__x86_64) || defined(__i386) || defined(_M_IX86) || defined(_M_X64)
+#define swap_if_little64(val) (SWAP64(val))
+#else
+static INLINE uint64_t swap_if_little64(uint64_t val)
+{
+   if (is_little_endian())
+      return SWAP64(val);
+   return val;
+}
+#endif
+
+/**
+ * swap_if_little32:
+ * @val        : unsigned 32-bit value
+ *
+ * Byteswap unsigned 32-bit value if system is little-endian.
+ *
+ * Returns: Byteswapped value in case system is little-endian,
+ * otherwise returns same value.
+ **/
+
+#if defined(MSB_FIRST)
+#define swap_if_little32(val) (val)
+#elif defined(__x86_64) || defined(__i386) || defined(_M_IX86) || defined(_M_X64)
+#define swap_if_little32(val) (SWAP32(val))
+#else
+static INLINE uint32_t swap_if_little32(uint32_t val)
+{
+   if (is_little_endian())
+      return SWAP32(val);
+   return val;
+}
+#endif
+
+/**
+ * swap_if_big16:
+ * @val        : unsigned 16-bit value
+ *
+ * Byteswap unsigned 16-bit value if system is big-endian.
+ *
+ * Returns: Byteswapped value in case system is big-endian,
+ * otherwise returns same value.
+ **/
+
+#if defined(MSB_FIRST)
+#define swap_if_big16(val) (SWAP16(val))
+#elif defined(__x86_64) || defined(__i386) || defined(_M_IX86) || defined(_M_X64)
+#define swap_if_big16(val) (val)
+#else
+static INLINE uint16_t swap_if_big16(uint16_t val)
+{
+   if (is_little_endian())
+      return val;
+   return SWAP16(val);
+}
+#endif
+
+/**
+ * swap_if_little16:
+ * @val        : unsigned 16-bit value
+ *
+ * Byteswap unsigned 16-bit value if system is little-endian.
+ *
+ * Returns: Byteswapped value in case system is little-endian,
+ * otherwise returns same value.
+ **/
+
+#if defined(MSB_FIRST)
+#define swap_if_little16(val) (val)
+#elif defined(__x86_64) || defined(__i386) || defined(_M_IX86) || defined(_M_X64)
+#define swap_if_little16(val) (SWAP16(val))
+#else
+static INLINE uint16_t swap_if_little16(uint16_t val)
+{
+   if (is_little_endian())
+      return SWAP16(val);
+   return val;
+}
+#endif
+
+/**
+ * store32be:
+ * @addr        : pointer to unsigned 32-bit buffer
+ * @data        : unsigned 32-bit value to write
+ *
+ * Write data to address. Endian-safe. Byteswaps the data
+ * first if necessary before storing it.
+ **/
+static INLINE void store32be(uint32_t *addr, uint32_t data)
+{
+   *addr = swap_if_little32(data);
+}
+
+/**
+ * load32be:
+ * @addr        : pointer to unsigned 32-bit buffer
+ *
+ * Load value from address. Endian-safe.
+ *
+ * Returns: value from address, byte-swapped if necessary.
+ **/
+static INLINE uint32_t load32be(const uint32_t *addr)
+{
+   return swap_if_little32(*addr);
+}
+
+#endif

libretro-common/include/retro_environment.h

@@ -101,6 +101,14 @@ printf("This is C++, version %d.\n", __cplusplus);
 #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

libretro-common/include/retro_math.h

@@ -0,0 +1,94 @@
+/* Copyright  (C) 2010-2018 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (retro_math.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_MATH_H
+#define _LIBRETRO_COMMON_MATH_H
+
+#include <stdint.h>
+
+#if defined(_WIN32) && !defined(_XBOX)
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#elif defined(_WIN32) && defined(_XBOX)
+#include <Xtl.h>
+#endif
+
+#include <limits.h>
+
+#ifdef _MSC_VER
+#include <compat/msvc.h>
+#endif
+#include <retro_inline.h>
+
+#ifndef M_PI
+#if !defined(USE_MATH_DEFINES)
+#define M_PI 3.14159265358979323846264338327
+#endif
+#endif
+
+#ifndef MAX
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#endif
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+/**
+ * next_pow2:
+ * @v         : initial value
+ *
+ * Get next power of 2 value based on  initial value.
+ *
+ * Returns: next power of 2 value (derived from @v).
+ **/
+static INLINE uint32_t next_pow2(uint32_t v)
+{
+   v--;
+   v |= v >> 1;
+   v |= v >> 2;
+   v |= v >> 4;
+   v |= v >> 8;
+   v |= v >> 16;
+   v++;
+   return v;
+}
+
+/**
+ * prev_pow2:
+ * @v         : initial value
+ *
+ * Get previous power of 2 value based on initial value.
+ *
+ * Returns: previous power of 2 value (derived from @v).
+ **/
+static INLINE uint32_t prev_pow2(uint32_t v)
+{
+   v |= v >> 1;
+   v |= v >> 2;
+   v |= v >> 4;
+   v |= v >> 8;
+   v |= v >> 16;
+   return v - (v >> 1);
+}
+
+#endif

libretro-common/include/retro_miscellaneous.h

@@ -77,7 +77,7 @@ static INLINE bool bits_any_set(uint32_t* ptr, uint32_t count)
 #ifndef PATH_MAX_LENGTH
 #if defined(__CELLOS_LV2__)
 #define PATH_MAX_LENGTH CELL_FS_MAX_FS_PATH_LENGTH
-#elif defined(_XBOX1) || defined(_3DS) || defined(PSP) || defined(GEKKO)|| defined(WIIU)
+#elif defined(_XBOX1) || defined(_3DS) || defined(PSP) || defined(PS2) || defined(GEKKO)|| defined(WIIU) || defined(ORBIS)
 #define PATH_MAX_LENGTH 512
 #else
 #define PATH_MAX_LENGTH 4096
@@ -159,14 +159,24 @@ typedef struct
 #  ifdef _WIN64
 #    define PRI_SIZET PRIu64
 #  else
-#if _MSC_VER == 1800
+#    if _MSC_VER == 1800
-#    define PRI_SIZET PRIu32
+#      define PRI_SIZET PRIu32
-#else
+#    else
-#    define PRI_SIZET "u"
+#      define PRI_SIZET "u"
-#endif
+#    endif
 #  endif
+#elif PS2
+#  define PRI_SIZET "u"
 #else
-#  define PRI_SIZET "zu"
+#  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

libretro-common/include/retro_timers.h

@@ -37,6 +37,8 @@
 #include <pspthreadman.h>
 #elif defined(VITA)
 #include <psp2/kernel/threadmgr.h>
+#elif defined(PS2)
+#include <SDL/SDL_timer.h>
 #elif defined(_3DS)
 #include <3ds.h>
 #else
@@ -89,10 +91,12 @@ static INLINE void retro_sleep(unsigned msec)
    sys_timer_usleep(1000 * msec);
 #elif defined(PSP) || defined(VITA)
    sceKernelDelayThread(1000 * msec);
+#elif defined(PS2)
+   SDL_Delay(msec);
 #elif defined(_3DS)
    svcSleepThread(1000000 * (s64)msec);
-#elif defined(__WINRT__)
+#elif defined(__WINRT__) || defined(WINAPI_FAMILY) && WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
-	/* TODO/FIXME */
+   SleepEx(msec, FALSE);
 #elif defined(_WIN32)
    Sleep(msec);
 #elif defined(XENON)

libretro-common/include/streams/file_stream.h

@@ -36,19 +36,22 @@
 #include <boolean.h>
 
 #include <stdarg.h>
+#include <vfs/vfs_implementation.h>
 
-#define FILESTREAM_REQUIRED_VFS_VERSION 1
+#define FILESTREAM_REQUIRED_VFS_VERSION 2
 
 RETRO_BEGIN_DECLS
 
 typedef struct RFILE RFILE;
 
-#define FILESTREAM_REQUIRED_VFS_VERSION 1
+#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
@@ -104,6 +107,8 @@ bool filestream_exists(const char *path);
 
 char *filestream_getline(RFILE *stream);
 
+libretro_vfs_implementation_file* filestream_get_vfs_handle(RFILE *stream);
+
 RETRO_END_DECLS
 
 #endif

libretro-common/include/streams/file_stream_transforms.h

@@ -30,6 +30,8 @@
 
 RETRO_BEGIN_DECLS
 
+#ifndef SKIP_STDIO_REDEFINES
+
 #define FILE RFILE
 
 #undef fopen
@@ -41,9 +43,11 @@ RETRO_BEGIN_DECLS
 #undef fgetc
 #undef fwrite
 #undef fputc
+#undef fflush
 #undef fprintf
 #undef ferror
 #undef feof
+#undef fscanf
 
 #define fopen rfopen
 #define fclose rfclose
@@ -54,9 +58,13 @@ RETRO_BEGIN_DECLS
 #define fgetc rfgetc
 #define fwrite rfwrite
 #define fputc rfputc
+#define fflush rfflush
 #define fprintf rfprintf
 #define ferror rferror
 #define feof rfeof
+#define fscanf rfscanf
+
+#endif
 
 RFILE* rfopen(const char *path, const char *mode);
 
@@ -78,12 +86,16 @@ int64_t rfwrite(void const* buffer,
 
 int rfputc(int character, RFILE * stream);
 
+int64_t rfflush(RFILE * stream);
+
 int rfprintf(RFILE * stream, const char * format, ...);
 
 int rferror(RFILE* stream);
 
 int rfeof(RFILE* stream);
 
+int rfscanf(RFILE * stream, const char * format, ...);
+
 RETRO_END_DECLS
 
 #endif

libretro-common/include/string/stdstring.h

@@ -1,4 +1,4 @@
-/* Copyright  (C) 2010-2018 The RetroArch team
+/* Copyright  (C) 2010-2019 The RetroArch team
  *
  * ---------------------------------------------------------------------------------------
  * The following license statement only applies to this file (stdstring.h).
@@ -37,35 +37,30 @@ RETRO_BEGIN_DECLS
 
 static INLINE bool string_is_empty(const char *data)
 {
-   return (data == NULL) || (*data == '\0');
+   return !data || (*data == '\0');
 }
 
 static INLINE bool string_is_equal(const char *a, const char *b)
 {
-   if (!a || !b)
+   return (a && b) ? !strcmp(a, b) : false;
-      return false;
-   while(*a && (*a == *b))
-   {
-      a++;
-      b++;
-   }
-   return (*(const unsigned char*)a - *(const unsigned char*)b) == 0;
 }
 
-static INLINE bool string_is_not_equal(const char *a, const char *b)
+#define STRLEN_CONST(x)                   ((sizeof((x))-1))
-{
-   return !string_is_equal(a, b);
-}
 
-#define string_add_pair_open(s, size)    strlcat((s), " (", (size))
+#define string_is_not_equal(a, b)         !string_is_equal((a), (b))
-#define string_add_pair_close(s, size)   strlcat((s), ")",  (size))
+
-#define string_add_bracket_open(s, size) strlcat((s), "{",  (size))
+#define string_add_pair_open(s, size)     strlcat((s), " (", (size))
+#define string_add_pair_close(s, size)    strlcat((s), ")",  (size))
+#define string_add_bracket_open(s, size)  strlcat((s), "{",  (size))
 #define string_add_bracket_close(s, size) strlcat((s), "}",  (size))
-#define string_add_single_quote(s, size) strlcat((s), "'",  (size))
+#define string_add_single_quote(s, size)  strlcat((s), "'",  (size))
-#define string_add_quote(s, size) strlcat((s), "\"",  (size))
+#define string_add_quote(s, size)         strlcat((s), "\"",  (size))
-#define string_add_colon(s, size) strlcat((s), ":",  (size))
+#define string_add_colon(s, size)         strlcat((s), ":",  (size))
-#define string_add_glob_open(s, size) strlcat((s), "glob('*",  (size))
+#define string_add_glob_open(s, size)     strlcat((s), "glob('*",  (size))
-#define string_add_glob_close(s, size) strlcat((s), "*')",  (size))
+#define string_add_glob_close(s, size)    strlcat((s), "*')",  (size))
+
+#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)
 
 static INLINE void string_add_between_pairs(char *s, const char *str,
       size_t size)
@@ -75,9 +70,6 @@ static INLINE void string_add_between_pairs(char *s, const char *str,
    string_add_pair_close(s, size);
 }
 
-#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)
-
 static INLINE bool string_is_equal_case_insensitive(const char *a,
       const char *b)
 {
@@ -119,7 +111,7 @@ char *string_to_upper(char *s);
 
 char *string_to_lower(char *s);
 
-char *string_ucwords(char* s);
+char *string_ucwords(char *s);
 
 char *string_replace_substring(const char *in, const char *pattern,
       const char *by);
@@ -133,7 +125,9 @@ char *string_trim_whitespace_right(char *const s);
 /* Remove leading and trailing whitespaces */
 char *string_trim_whitespace(char *const s);
 
-char *word_wrap(char* buffer, const char *string, int line_width, bool unicode);
+/* max_lines == 0 means no limit */
+char *word_wrap(char *buffer, const char *string,
+      int line_width, bool unicode, unsigned max_lines);
 
 RETRO_END_DECLS
 

libretro-common/include/vfs/vfs.h

@@ -0,0 +1,111 @@
+/* Copyright  (C) 2010-2019 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
+{
+   char *cue_buf;
+   size_t cue_len;
+   int64_t byte_pos;
+   char drive;
+   unsigned char cur_min;
+   unsigned char cur_sec;
+   unsigned char cur_frame;
+   unsigned char cur_track;
+   unsigned cur_lba;
+   unsigned last_frame_lba;
+   unsigned char last_frame[2352];
+   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
+{
+   int fd;
+   unsigned hints;
+   int64_t size;
+   char *buf;
+   FILE *fp;
+#ifdef _WIN32
+   HANDLE fh;
+#endif
+   char* orig_path;
+   uint64_t mappos;
+   uint64_t mapsize;
+   uint8_t *mapped;
+   enum vfs_scheme scheme;
+#ifdef HAVE_CDROM
+   vfs_cdrom_t cdrom;
+#endif
+};
+#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

libretro-common/include/vfs/vfs_implementation.h

@@ -1,4 +1,4 @@
-/* Copyright  (C) 2010-2018 The RetroArch team
+/* Copyright  (C) 2010-2019 The RetroArch team
 *
 * ---------------------------------------------------------------------------------------
 * The following license statement only applies to this file (vfs_implementation.h).
@@ -23,20 +23,13 @@
 #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>
 
-/* Replace the following symbol with something appropriate
+RETRO_BEGIN_DECLS
- * 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
 
 libretro_vfs_implementation_file *retro_vfs_file_open_impl(const char *path, unsigned mode, unsigned hints);
 
@@ -46,6 +39,8 @@ 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);
@@ -62,4 +57,20 @@ 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

libretro-common/include/vfs/vfs_implementation_cdrom.h

@@ -0,0 +1,52 @@
+/* Copyright  (C) 2010-2019 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (vfs_implementation_cdrom.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_CDROM_H
+#define __LIBRETRO_SDK_VFS_IMPLEMENTATION_CDROM_H
+
+#include <vfs/vfs.h>
+#include <cdrom/cdrom.h>
+
+RETRO_BEGIN_DECLS
+
+int64_t retro_vfs_file_seek_cdrom(libretro_vfs_implementation_file *stream, int64_t offset, int whence);
+
+void retro_vfs_file_open_cdrom(
+      libretro_vfs_implementation_file *stream,
+      const char *path, unsigned mode, unsigned hints);
+
+int retro_vfs_file_close_cdrom(libretro_vfs_implementation_file *stream);
+
+int64_t retro_vfs_file_tell_cdrom(libretro_vfs_implementation_file *stream);
+
+int64_t retro_vfs_file_read_cdrom(libretro_vfs_implementation_file *stream,
+      void *s, uint64_t len);
+
+int retro_vfs_file_error_cdrom(libretro_vfs_implementation_file *stream);
+
+const cdrom_toc_t* retro_vfs_file_get_cdrom_toc(void);
+
+const vfs_cdrom_t* retro_vfs_file_get_cdrom_position(const libretro_vfs_implementation_file *stream);
+
+RETRO_END_DECLS
+
+#endif

libretro-common/lists/dir_list.c

@@ -0,0 +1,240 @@
+/* Copyright  (C) 2010-2018 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (dir_list.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>
+
+#if defined(_WIN32) && defined(_XBOX)
+#include <xtl.h>
+#elif defined(_WIN32)
+#include <windows.h>
+#endif
+
+#include <lists/dir_list.h>
+#include <lists/string_list.h>
+#include <file/file_path.h>
+
+#include <compat/strl.h>
+#include <retro_dirent.h>
+
+#include <string/stdstring.h>
+#include <retro_miscellaneous.h>
+
+static int qstrcmp_plain(const void *a_, const void *b_)
+{
+   const struct string_list_elem *a = (const struct string_list_elem*)a_;
+   const struct string_list_elem *b = (const struct string_list_elem*)b_;
+
+   return strcasecmp(a->data, b->data);
+}
+
+static int qstrcmp_dir(const void *a_, const void *b_)
+{
+   const struct string_list_elem *a = (const struct string_list_elem*)a_;
+   const struct string_list_elem *b = (const struct string_list_elem*)b_;
+   int a_type = a->attr.i;
+   int b_type = b->attr.i;
+
+   /* Sort directories before files. */
+   if (a_type != b_type)
+      return b_type - a_type;
+   return strcasecmp(a->data, b->data);
+}
+
+/**
+ * dir_list_sort:
+ * @list      : pointer to the directory listing.
+ * @dir_first : move the directories in the listing to the top?
+ *
+ * Sorts a directory listing.
+ *
+ **/
+void dir_list_sort(struct string_list *list, bool dir_first)
+{
+   if (list)
+      qsort(list->elems, list->size, sizeof(struct string_list_elem),
+            dir_first ? qstrcmp_dir : qstrcmp_plain);
+}
+
+/**
+ * dir_list_free:
+ * @list : pointer to the directory listing
+ *
+ * Frees a directory listing.
+ *
+ **/
+void dir_list_free(struct string_list *list)
+{
+   string_list_free(list);
+}
+
+/**
+ * dir_list_read:
+ * @dir                : directory path.
+ * @list               : the string list to add files to
+ * @ext_list           : the string list of extensions to include
+ * @include_dirs       : include directories as part of the finished directory listing?
+ * @include_hidden     : include hidden files and directories as part of the finished directory listing?
+ * @include_compressed : Only include files which match ext. Do not try to match compressed files, etc.
+ * @recursive          : list directory contents recursively
+ *
+ * Add files within a directory to an existing string list
+ *
+ * Returns: -1 on error, 0 on success.
+ **/
+static int dir_list_read(const char *dir,
+      struct string_list *list, struct string_list *ext_list,
+      bool include_dirs, bool include_hidden,
+      bool include_compressed, bool recursive)
+{
+   struct RDIR *entry = retro_opendir_include_hidden(dir, include_hidden);
+
+   if (!entry || retro_dirent_error(entry))
+      goto error;
+
+   while (retro_readdir(entry))
+   {
+      union string_list_elem_attr attr;
+      char file_path[PATH_MAX_LENGTH];
+      const char *name                = retro_dirent_get_name(entry);
+
+      if (!include_hidden && *name == '.')
+         continue;
+      if (!strcmp(name, ".") || !strcmp(name, ".."))
+         continue;
+
+      file_path[0] = '\0';
+      fill_pathname_join(file_path, dir, name, sizeof(file_path));
+
+      if (retro_dirent_is_dir(entry, NULL))
+      {
+         if (recursive)
+            dir_list_read(file_path, list, ext_list, include_dirs,
+                  include_hidden, include_compressed, recursive);
+
+         if (!include_dirs)
+            continue;
+         attr.i = RARCH_DIRECTORY;
+      }
+      else
+      {
+         const char *file_ext    = path_get_extension(name);
+
+         attr.i                  = RARCH_FILETYPE_UNSET;
+
+         /*
+          * If the file format is explicitly supported by the libretro-core, we
+          * need to immediately load it and not designate it as a compressed file.
+          *
+          * Example: .zip could be supported as a image by the core and as a
+          * compressed_file. In that case, we have to interpret it as a image.
+          *
+          * */
+         if (string_list_find_elem_prefix(ext_list, ".", file_ext))
+            attr.i            = RARCH_PLAIN_FILE;
+         else
+         {
+            bool is_compressed_file;
+            if ((is_compressed_file = path_is_compressed_file(file_path)))
+               attr.i               = RARCH_COMPRESSED_ARCHIVE;
+
+            if (ext_list &&
+                  (!is_compressed_file || !include_compressed))
+               continue;
+         }
+      }
+
+      if (!string_list_append(list, file_path, attr))
+         goto error;
+   }
+
+   retro_closedir(entry);
+
+   return 0;
+
+error:
+   if (entry)
+      retro_closedir(entry);
+   return -1;
+}
+
+/**
+ * dir_list_append:
+ * @list               : existing list to append to.
+ * @dir                : directory path.
+ * @ext                : allowed extensions of file directory entries to include.
+ * @include_dirs       : include directories as part of the finished directory listing?
+ * @include_hidden     : include hidden files and directories as part of the finished directory listing?
+ * @include_compressed : Only include files which match ext. Do not try to match compressed files, etc.
+ * @recursive          : list directory contents recursively
+ *
+ * Create a directory listing, appending to an existing list
+ *
+ * Returns: true success, false in case of error.
+ **/
+bool dir_list_append(struct string_list *list,
+      const char *dir,
+      const char *ext, bool include_dirs,
+      bool include_hidden, bool include_compressed,
+      bool recursive)
+{
+   struct string_list *ext_list   = ext ? string_split(ext, "|") : NULL;
+   bool ret                       = dir_list_read(dir, list, ext_list,
+         include_dirs, include_hidden, include_compressed, recursive) != -1;
+
+   string_list_free(ext_list);
+
+   return ret;
+}
+
+/**
+ * dir_list_new:
+ * @dir                : directory path.
+ * @ext                : allowed extensions of file directory entries to include.
+ * @include_dirs       : include directories as part of the finished directory listing?
+ * @include_hidden     : include hidden files and directories as part of the finished directory listing?
+ * @include_compressed : Only include files which match ext. Do not try to match compressed files, etc.
+ * @recursive          : list directory contents recursively
+ *
+ * Create a directory listing.
+ *
+ * Returns: pointer to a directory listing of type 'struct string_list *' on success,
+ * NULL in case of error. Has to be freed manually.
+ **/
+struct string_list *dir_list_new(const char *dir,
+      const char *ext, bool include_dirs,
+      bool include_hidden, bool include_compressed,
+      bool recursive)
+{
+   struct string_list *list       = NULL;
+
+   if (!(list = string_list_new()))
+      return NULL;
+
+   if (!dir_list_append(list, dir, ext, include_dirs,
+            include_hidden, include_compressed, recursive))
+   {
+      string_list_free(list);
+      return NULL;
+   }
+
+   return list;
+}

libretro-common/lists/string_list.c

@@ -0,0 +1,363 @@
+/* Copyright  (C) 2010-2018 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (string_list.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 <stdint.h>
+#include <string.h>
+
+#include <lists/string_list.h>
+#include <compat/strl.h>
+#include <compat/posix_string.h>
+#include <string/stdstring.h>
+
+/**
+ * string_list_free
+ * @list             : pointer to string list object
+ *
+ * Frees a string list.
+ */
+void string_list_free(struct string_list *list)
+{
+   size_t i;
+   if (!list)
+      return;
+
+   if (list->elems)
+   {
+      for (i = 0; i < list->size; i++)
+      {
+         if (list->elems[i].data)
+            free(list->elems[i].data);
+         list->elems[i].data = NULL;
+      }
+
+      free(list->elems);
+   }
+
+   list->elems = NULL;
+   free(list);
+}
+
+/**
+ * string_list_capacity:
+ * @list             : pointer to string list
+ * @cap              : new capacity for string list.
+ *
+ * Change maximum capacity of string list's size.
+ *
+ * Returns: true (1) if successful, otherwise false (0).
+ **/
+static bool string_list_capacity(struct string_list *list, size_t cap)
+{
+   struct string_list_elem *new_data = (struct string_list_elem*)
+      realloc(list->elems, cap * sizeof(*new_data));
+
+   if (!new_data)
+      return false;
+
+   if (cap > list->cap)
+      memset(&new_data[list->cap], 0, sizeof(*new_data) * (cap - list->cap));
+
+   list->elems = new_data;
+   list->cap   = cap;
+   return true;
+}
+
+/**
+ * string_list_new:
+ *
+ * Creates a new string list. Has to be freed manually.
+ *
+ * Returns: new string list if successful, otherwise NULL.
+ */
+struct string_list *string_list_new(void)
+{
+   struct string_list *list = (struct string_list*)
+      calloc(1, sizeof(*list));
+
+   if (!list)
+      return NULL;
+
+   if (!string_list_capacity(list, 32))
+   {
+      string_list_free(list);
+      return NULL;
+   }
+
+   return list;
+}
+
+/**
+ * string_list_append:
+ * @list             : pointer to string list
+ * @elem             : element to add to the string list
+ * @attr             : attributes of new element.
+ *
+ * Appends a new element to the string list.
+ *
+ * Returns: true (1) if successful, otherwise false (0).
+ **/
+bool string_list_append(struct string_list *list, const char *elem,
+      union string_list_elem_attr attr)
+{
+   char *data_dup = NULL;
+
+   if (list->size >= list->cap &&
+         !string_list_capacity(list, list->cap * 2))
+      return false;
+
+   data_dup = strdup(elem);
+   if (!data_dup)
+      return false;
+
+   list->elems[list->size].data = data_dup;
+   list->elems[list->size].attr = attr;
+
+   list->size++;
+   return true;
+}
+
+/**
+ * string_list_append_n:
+ * @list             : pointer to string list
+ * @elem             : element to add to the string list
+ * @length           : read at most this many bytes from elem
+ * @attr             : attributes of new element.
+ *
+ * Appends a new element to the string list.
+ *
+ * Returns: true (1) if successful, otherwise false (0).
+ **/
+bool string_list_append_n(struct string_list *list, const char *elem,
+      unsigned length, union string_list_elem_attr attr)
+{
+   char *data_dup = NULL;
+
+   if (list->size >= list->cap &&
+         !string_list_capacity(list, list->cap * 2))
+      return false;
+
+   data_dup = (char*)malloc(length + 1);
+
+   if (!data_dup)
+      return false;
+
+   strlcpy(data_dup, elem, length + 1);
+
+   list->elems[list->size].data = data_dup;
+   list->elems[list->size].attr = attr;
+
+   list->size++;
+   return true;
+}
+
+/**
+ * string_list_set:
+ * @list             : pointer to string list
+ * @idx              : index of element in string list
+ * @str              : value for the element.
+ *
+ * Set value of element inside string list.
+ **/
+void string_list_set(struct string_list *list,
+      unsigned idx, const char *str)
+{
+   free(list->elems[idx].data);
+   list->elems[idx].data = strdup(str);
+}
+
+/**
+ * string_list_join_concat:
+ * @buffer           : buffer that @list will be joined to.
+ * @size             : length of @buffer.
+ * @list             : pointer to string list.
+ * @delim            : delimiter character for @list.
+ *
+ * A string list will be joined/concatenated as a
+ * string to @buffer, delimited by @delim.
+ */
+void string_list_join_concat(char *buffer, size_t size,
+      const struct string_list *list, const char *delim)
+{
+   size_t i, len = strlen(buffer);
+
+   buffer += len;
+   size   -= len;
+
+   for (i = 0; i < list->size; i++)
+   {
+      strlcat(buffer, list->elems[i].data, size);
+      if ((i + 1) < list->size)
+         strlcat(buffer, delim, size);
+   }
+}
+
+/**
+ * string_split:
+ * @str              : string to turn into a string list
+ * @delim            : delimiter character to use for splitting the string.
+ *
+ * Creates a new string list based on string @str, delimited by @delim.
+ *
+ * Returns: new string list if successful, otherwise NULL.
+ */
+struct string_list *string_split(const char *str, const char *delim)
+{
+   char *save      = NULL;
+   char *copy      = NULL;
+   const char *tmp = NULL;
+   struct string_list *list = string_list_new();
+
+   if (!list)
+      goto error;
+
+   copy = strdup(str);
+   if (!copy)
+      goto error;
+
+   tmp = strtok_r(copy, delim, &save);
+   while (tmp)
+   {
+      union string_list_elem_attr attr;
+
+      attr.i = 0;
+
+      if (!string_list_append(list, tmp, attr))
+         goto error;
+
+      tmp = strtok_r(NULL, delim, &save);
+   }
+
+   free(copy);
+   return list;
+
+error:
+   string_list_free(list);
+   free(copy);
+   return NULL;
+}
+
+/**
+ * string_list_find_elem:
+ * @list             : pointer to string list
+ * @elem             : element to find inside the string list.
+ *
+ * Searches for an element (@elem) inside the string list.
+ *
+ * Returns: true (1) if element could be found, otherwise false (0).
+ */
+int string_list_find_elem(const struct string_list *list, const char *elem)
+{
+   size_t i;
+
+   if (!list)
+      return false;
+
+   for (i = 0; i < list->size; i++)
+   {
+      if (string_is_equal_noncase(list->elems[i].data, elem))
+         return (int)(i + 1);
+   }
+
+   return false;
+}
+
+/**
+ * string_list_find_elem_prefix:
+ * @list             : pointer to string list
+ * @prefix           : prefix to append to @elem
+ * @elem             : element to find inside the string list.
+ *
+ * Searches for an element (@elem) inside the string list. Will
+ * also search for the same element prefixed by @prefix.
+ *
+ * Returns: true (1) if element could be found, otherwise false (0).
+ */
+bool string_list_find_elem_prefix(const struct string_list *list,
+      const char *prefix, const char *elem)
+{
+   size_t i;
+   char prefixed[255];
+
+   if (!list)
+      return false;
+
+   prefixed[0] = '\0';
+
+   strlcpy(prefixed, prefix, sizeof(prefixed));
+   strlcat(prefixed, elem,   sizeof(prefixed));
+
+   for (i = 0; i < list->size; i++)
+   {
+      if (string_is_equal_noncase(list->elems[i].data, elem) ||
+            string_is_equal_noncase(list->elems[i].data, prefixed))
+         return true;
+   }
+
+   return false;
+}
+
+struct string_list *string_list_clone(
+      const struct string_list *src)
+{
+   unsigned i;
+   struct string_list_elem *elems = NULL;
+   struct string_list *dest       = (struct string_list*)
+      calloc(1, sizeof(struct string_list));
+
+   if (!dest)
+      return NULL;
+
+   dest->size      = src->size;
+   dest->cap       = src->cap;
+   if (dest->cap < dest->size)
+      dest->cap    = dest->size;
+
+   elems           = (struct string_list_elem*)
+      calloc(dest->cap, sizeof(struct string_list_elem));
+
+   if (!elems)
+   {
+      free(dest);
+      return NULL;
+   }
+
+   dest->elems            = elems;
+
+   for (i = 0; i < src->size; i++)
+   {
+      const char *_src    = src->elems[i].data;
+      size_t      len     = _src ? strlen(_src) : 0;
+
+      dest->elems[i].data = NULL;
+      dest->elems[i].attr = src->elems[i].attr;
+
+      if (len != 0)
+      {
+         char *result        = (char*)malloc(len + 1);
+         strcpy(result, _src);
+         dest->elems[i].data = result;
+      }
+   }
+
+   return dest;
+}

libretro-common/memmap/memalign.c

@@ -0,0 +1,63 @@
+/* Copyright  (C) 2010-2018 The RetroArch team
+ *
+ * ---------------------------------------------------------------------------------------
+ * The following license statement only applies to this file (memalign.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 <memalign.h>
+
+void *memalign_alloc(size_t boundary, size_t size)
+{
+   void **place   = NULL;
+   uintptr_t addr = 0;
+   void *ptr      = (void*)malloc(boundary + size + sizeof(uintptr_t));
+   if (!ptr)
+      return NULL;
+
+   addr           = ((uintptr_t)ptr + sizeof(uintptr_t) + boundary)
+      & ~(boundary - 1);
+   place          = (void**)addr;
+   place[-1]      = ptr;
+
+   return (void*)addr;
+}
+
+void memalign_free(void *ptr)
+{
+   void **p = NULL;
+   if (!ptr)
+      return;
+
+   p = (void**)ptr;
+   free(p[-1]);
+}
+
+void *memalign_alloc_aligned(size_t size)
+{
+#if defined(__x86_64__) || defined(__LP64) || defined(__IA64__) || defined(_M_X64) || defined(_M_X64) || defined(_WIN64)
+   return memalign_alloc(64, size);
+#elif defined(__i386__) || defined(__i486__) || defined(__i686__) || defined(GEKKO) || defined(_M_IX86)
+   return memalign_alloc(32, size);
+#else
+   return memalign_alloc(32, size);
+#endif
+}

libretro-common/streams/file_stream.c

@@ -41,6 +41,7 @@ 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;
@@ -67,6 +68,7 @@ void filestream_vfs_init(const struct retro_vfs_interface_info* vfs_info)
    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;
@@ -84,6 +86,7 @@ void filestream_vfs_init(const struct retro_vfs_interface_info* vfs_info)
    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;
@@ -127,6 +130,21 @@ int64_t filestream_get_size(RFILE *stream)
    return output;
 }
 
+int64_t filestream_truncate(RFILE *stream, int64_t length)
+{
+   int64_t output;
+
+   if (filestream_truncate_cb != NULL)
+      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
@@ -186,9 +204,9 @@ int filestream_getc(RFILE *stream)
 {
    char c = 0;
    if (!stream)
-      return 0;
+      return EOF;
-   if(filestream_read(stream, &c, 1) == 1)
+   if (filestream_read(stream, &c, 1) == 1)
-      return (int)c;
+      return (int)(unsigned char)c;
    return EOF;
 }
 
@@ -203,6 +221,9 @@ int filestream_scanf(RFILE *stream, const char* format, ...)
    int        ret       = 0;
    int64_t maxlen       = filestream_read(stream, buf, sizeof(buf)-1);
 
+   if (maxlen <= 0)
+      return EOF;
+
    buf[maxlen] = '\0';
 
    va_start(args, format);
@@ -305,7 +326,6 @@ int filestream_eof(RFILE *stream)
    return stream->eof_flag;
 }
 
-
 int64_t filestream_tell(RFILE *stream)
 {
    int64_t output;
@@ -407,7 +427,7 @@ int filestream_putc(RFILE *stream, int c)
    char c_char = (char)c;
    if (!stream)
       return EOF;
-   return filestream_write(stream, &c_char, 1)==1 ? c : 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)
@@ -592,3 +612,8 @@ char *filestream_getline(RFILE *stream)
    newline[idx]      = '\0';
    return newline;
 }
+
+libretro_vfs_implementation_file* filestream_get_vfs_handle(RFILE *stream)
+{
+   return (libretro_vfs_implementation_file*)stream->hfile;
+}

libretro-common/streams/file_stream_transforms.c

@@ -99,7 +99,7 @@ int64_t rfseek(RFILE* stream, int64_t offset, int origin)
 int64_t rfread(void* buffer,
    size_t elem_size, size_t elem_count, RFILE* stream)
 {
-   return filestream_read(stream, buffer, elem_size * elem_count);
+   return (filestream_read(stream, buffer, elem_size * elem_count) / elem_size);
 }
 
 char *rfgets(char *buffer, int maxCount, RFILE* stream)
@@ -109,7 +109,7 @@ char *rfgets(char *buffer, int maxCount, RFILE* stream)
 
 int rfgetc(RFILE* stream)
 {
-	return filestream_getc(stream);
+   return filestream_getc(stream);
 }
 
 int64_t rfwrite(void const* buffer,
@@ -123,14 +123,19 @@ 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_list vl;
-	va_start(vl, format);
+   va_start(vl, format);
-	result = filestream_vprintf(stream, format, vl);
+   result = filestream_vprintf(stream, format, vl);
-	va_end(vl);
+   va_end(vl);
-	return result;
+   return result;
 }
 
 int rferror(RFILE* stream)
@@ -142,3 +147,13 @@ 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;
+}

libretro-common/string/stdstring.c

@@ -82,6 +82,10 @@ char *string_replace_substring(const char *in,
 
    outlen          = strlen(in) - pattern_len*numhits + replacement_len*numhits;
    out             = (char *)malloc(outlen+1);
+
+   if (!out)
+      return NULL;
+
    outat           = out;
    inat            = in;
    inprev          = in;
@@ -105,18 +109,17 @@ char *string_trim_whitespace_left(char *const s)
 {
    if(s && *s)
    {
-      size_t len = strlen(s);
+      size_t len     = strlen(s);
-      char *cur  = s;
+      char *current  = s;
 
-      while(*cur && isspace((unsigned char)*cur))
+      while(*current && isspace((unsigned char)*current))
       {
-         ++cur;
+         ++current;
          --len;
       }
 
-      if(s != cur)
+      if(s != current)
-         memmove(s, cur, len + 1);
+         memmove(s, current, len + 1);
-
    }
 
    return s;
@@ -127,16 +130,16 @@ char *string_trim_whitespace_right(char *const s)
 {
    if(s && *s)
    {
-      size_t len = strlen(s);
+      size_t len     = strlen(s);
-      char  *cur = s + len - 1;
+      char  *current = s + len - 1;
 
-      while(cur != s && isspace((unsigned char)*cur))
+      while(current != s && isspace((unsigned char)*current))
       {
-         --cur;
+         --current;
          --len;
       }
 
-      cur[isspace((unsigned char)*cur) ? 0 : 1] = '\0';
+      current[isspace((unsigned char)*current) ? 0 : 1] = '\0';
    }
 
    return s;
@@ -151,14 +154,16 @@ char *string_trim_whitespace(char *const s)
    return s;
 }
 
-char *word_wrap(char* buffer, const char *string, int line_width, bool unicode)
+char *word_wrap(char* buffer, const char *string, int line_width, bool unicode, unsigned max_lines)
 {
-   unsigned i   = 0;
+   unsigned i     = 0;
-   unsigned len = (unsigned)strlen(string);
+   unsigned len   = (unsigned)strlen(string);
+   unsigned lines = 1;
 
    while (i < len)
    {
       unsigned counter;
+      int pos = (int)(&buffer[i] - buffer);
 
       /* copy string until the end of the line is reached */
       for (counter = 1; counter <= (unsigned)line_width; counter++)
@@ -190,14 +195,21 @@ char *word_wrap(char* buffer, const char *string, int line_width, bool unicode)
          /* check for newlines embedded in the original input
           * and reset the index */
          if (buffer[j] == '\n')
+         {
+            lines++;
             counter = 1;
+         }
       }
 
       /* check for whitespace */
       if (string[i] == ' ')
       {
-         buffer[i] = '\n';
+         if ((max_lines == 0 || lines < max_lines))
-         i++;
+         {
+            buffer[i] = '\n';
+            i++;
+            lines++;
+         }
       }
       else
       {
@@ -206,14 +218,18 @@ char *word_wrap(char* buffer, const char *string, int line_width, bool unicode)
          /* check for nearest whitespace back in string */
          for (k = i; k > 0; k--)
          {
-            if (string[k] != ' ')
+            if (string[k] != ' ' || (max_lines != 0 && lines >= max_lines))
                continue;
 
             buffer[k] = '\n';
             /* set string index back to character after this one */
             i         = k + 1;
+            lines++;
             break;
          }
+
+         if (&buffer[i] - buffer == pos)
+            return buffer;
       }
    }
 

libretro-common/vfs/vfs_implementation_cdrom.c

@@ -0,0 +1,423 @@
+/* Copyright  (C) 2010-2019 The RetroArch team
+*
+* ---------------------------------------------------------------------------------------
+* The following license statement only applies to this file (vfs_implementation_cdrom.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 <vfs/vfs_implementation.h>
+#include <file/file_path.h>
+#include <compat/fopen_utf8.h>
+#include <string/stdstring.h>
+#include <cdrom/cdrom.h>
+
+#if defined(_WIN32) && !defined(_XBOX)
+#include <windows.h>
+#endif
+
+static cdrom_toc_t vfs_cdrom_toc = {0};
+
+const cdrom_toc_t* retro_vfs_file_get_cdrom_toc(void)
+{
+   return &vfs_cdrom_toc;
+}
+
+int64_t retro_vfs_file_seek_cdrom(libretro_vfs_implementation_file *stream, int64_t offset, int whence)
+{
+   const char *ext = path_get_extension(stream->orig_path);
+
+   if (string_is_equal_noncase(ext, "cue"))
+   {
+      switch (whence)
+      {
+         case SEEK_SET:
+            stream->cdrom.byte_pos = offset;
+            break;
+         case SEEK_CUR:
+            stream->cdrom.byte_pos += offset;
+            break;
+         case SEEK_END:
+            stream->cdrom.byte_pos = (stream->cdrom.cue_len - 1) + offset;
+            break;
+      }
+
+#ifdef CDROM_DEBUG
+      printf("[CDROM] Seek: Path %s Offset %" PRIu64 " is now at %" PRIu64 "\n", stream->orig_path, offset, stream->cdrom.byte_pos);
+      fflush(stdout);
+#endif
+   }
+   else if (string_is_equal_noncase(ext, "bin"))
+   {
+      int lba = (offset / 2352);
+      unsigned char min = 0;
+      unsigned char sec = 0;
+      unsigned char frame = 0;
+      const char *seek_type = "SEEK_SET";
+
+      (void)seek_type;
+
+      switch (whence)
+      {
+         case SEEK_CUR:
+         {
+            unsigned new_lba;
+
+            stream->cdrom.byte_pos += offset;
+            new_lba = vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].lba + (stream->cdrom.byte_pos / 2352);
+            seek_type = "SEEK_CUR";
+
+            cdrom_lba_to_msf(new_lba, &min, &sec, &frame);
+
+            break;
+         }
+         case SEEK_END:
+         {
+            ssize_t pregap_lba_len = (vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].audio ? 0 : (vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].lba - vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].lba_start));
+            ssize_t lba_len = vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].track_size - pregap_lba_len;
+
+            cdrom_lba_to_msf(lba_len + lba, &min, &sec, &frame);
+
+            stream->cdrom.byte_pos = lba_len * 2352;
+            seek_type = "SEEK_END";
+
+            break;
+         }
+         case SEEK_SET:
+         default:
+         {
+            seek_type = "SEEK_SET";
+            stream->cdrom.byte_pos = offset;
+            cdrom_lba_to_msf(vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].lba + (stream->cdrom.byte_pos / 2352), &min, &sec, &frame);
+            break;
+         }
+      }
+
+      stream->cdrom.cur_min = min;
+      stream->cdrom.cur_sec = sec;
+      stream->cdrom.cur_frame = frame;
+      stream->cdrom.cur_lba = cdrom_msf_to_lba(min, sec, frame);
+
+#ifdef CDROM_DEBUG
+      printf("[CDROM] Seek %s: Path %s Offset %" PRIu64 " is now at %" PRIu64 " (MSF %02u:%02u:%02u) (LBA %u)...\n", seek_type, stream->orig_path, offset, stream->cdrom.byte_pos, (unsigned)stream->cdrom.cur_min, (unsigned)stream->cdrom.cur_sec, (unsigned)stream->cdrom.cur_frame, stream->cdrom.cur_lba);
+      fflush(stdout);
+#endif
+   }
+   else
+      return -1;
+
+   return 0;
+}
+
+void retro_vfs_file_open_cdrom(
+      libretro_vfs_implementation_file *stream,
+      const char *path, unsigned mode, unsigned hints)
+{
+#if defined(__linux__) && !defined(ANDROID)
+   char cdrom_path[] = "/dev/sg1";
+   size_t path_len = strlen(path);
+   const char *ext = path_get_extension(path);
+
+   stream->cdrom.cur_track = 1;
+
+   if (!string_is_equal_noncase(ext, "cue") && !string_is_equal_noncase(ext, "bin"))
+      return;
+
+   if (path_len >= strlen("drive1-track01.bin"))
+   {
+      if (!memcmp(path, "drive", strlen("drive")))
+      {
+         if (!memcmp(path + 6, "-track", strlen("-track")))
+         {
+            if (sscanf(path + 12, "%02u", (unsigned*)&stream->cdrom.cur_track))
+            {
+#ifdef CDROM_DEBUG
+               printf("[CDROM] Opening track %d\n", stream->cdrom.cur_track);
+               fflush(stdout);
+#endif
+            }
+         }
+      }
+   }
+
+   if (path_len >= strlen("drive1.cue"))
+   {
+      if (!memcmp(path, "drive", strlen("drive")))
+      {
+         if (path[5] >= '0' && path[5] <= '9')
+         {
+            cdrom_path[7] = path[5];
+            stream->cdrom.drive = path[5];
+            vfs_cdrom_toc.drive = stream->cdrom.drive;
+         }
+      }
+   }
+
+#ifdef CDROM_DEBUG
+   printf("[CDROM] Open: Path %s URI %s\n", cdrom_path, path);
+   fflush(stdout);
+#endif
+   stream->fp = (FILE*)fopen_utf8(cdrom_path, "r+b");
+
+   if (!stream->fp)
+      return;
+
+   if (string_is_equal_noncase(ext, "cue"))
+   {
+      if (stream->cdrom.cue_buf)
+      {
+         free(stream->cdrom.cue_buf);
+         stream->cdrom.cue_buf = NULL;
+      }
+
+      cdrom_write_cue(stream, &stream->cdrom.cue_buf, &stream->cdrom.cue_len, stream->cdrom.drive, &vfs_cdrom_toc.num_tracks, &vfs_cdrom_toc);
+      cdrom_get_timeouts(stream, &vfs_cdrom_toc.timeouts);
+
+#ifdef CDROM_DEBUG
+      if (string_is_empty(stream->cdrom.cue_buf))
+      {
+         printf("[CDROM] Error writing cue sheet.\n");
+         fflush(stdout);
+      }
+      else
+      {
+         printf("[CDROM] CUE Sheet:\n%s\n", stream->cdrom.cue_buf);
+         fflush(stdout);
+      }
+#endif
+   }
+#endif
+#if defined(_WIN32) && !defined(_XBOX)
+   char cdrom_path[] = "\\\\.\\D:";
+   size_t path_len = strlen(path);
+   const char *ext = path_get_extension(path);
+
+   if (!string_is_equal_noncase(ext, "cue") && !string_is_equal_noncase(ext, "bin"))
+      return;
+
+   if (path_len >= strlen("d:/drive-track01.bin"))
+   {
+      if (!memcmp(path + 1, ":/drive-track", strlen(":/drive-track")))
+      {
+         if (sscanf(path + 14, "%02u", (unsigned*)&stream->cdrom.cur_track))
+         {
+#ifdef CDROM_DEBUG
+            printf("[CDROM] Opening track %d\n", stream->cdrom.cur_track);
+            fflush(stdout);
+#endif
+         }
+      }
+   }
+
+   if (path_len >= strlen("d:/drive.cue"))
+   {
+      if (!memcmp(path + 1, ":/drive", strlen(":/drive")))
+      {
+         if ((path[0] >= 'A' && path[0] <= 'Z') || (path[0] >= 'a' && path[0] <= 'z'))
+         {
+            cdrom_path[4] = path[0];
+            stream->cdrom.drive = path[0];
+            vfs_cdrom_toc.drive = stream->cdrom.drive;
+         }
+      }
+   }
+
+#ifdef CDROM_DEBUG
+   printf("[CDROM] Open: Path %s URI %s\n", cdrom_path, path);
+   fflush(stdout);
+#endif
+   stream->fh = CreateFile(cdrom_path, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+
+   if (stream->fh == INVALID_HANDLE_VALUE)
+      return;
+
+   if (string_is_equal_noncase(ext, "cue"))
+   {
+      if (stream->cdrom.cue_buf)
+      {
+         free(stream->cdrom.cue_buf);
+         stream->cdrom.cue_buf = NULL;
+      }
+
+      cdrom_write_cue(stream, &stream->cdrom.cue_buf, &stream->cdrom.cue_len, stream->cdrom.drive, &vfs_cdrom_toc.num_tracks, &vfs_cdrom_toc);
+      cdrom_get_timeouts(stream, &vfs_cdrom_toc.timeouts);
+
+#ifdef CDROM_DEBUG
+      if (string_is_empty(stream->cdrom.cue_buf))
+      {
+         printf("[CDROM] Error writing cue sheet.\n");
+         fflush(stdout);
+      }
+      else
+      {
+         printf("[CDROM] CUE Sheet:\n%s\n", stream->cdrom.cue_buf);
+         fflush(stdout);
+      }
+#endif
+   }
+#endif
+   if (vfs_cdrom_toc.num_tracks > 1 && stream->cdrom.cur_track)
+   {
+      stream->cdrom.cur_min = vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].min;
+      stream->cdrom.cur_sec = vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].sec;
+      stream->cdrom.cur_frame = vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].frame;
+      stream->cdrom.cur_lba = cdrom_msf_to_lba(stream->cdrom.cur_min, stream->cdrom.cur_sec, stream->cdrom.cur_frame);
+   }
+   else
+   {
+      stream->cdrom.cur_min = vfs_cdrom_toc.track[0].min;
+      stream->cdrom.cur_sec = vfs_cdrom_toc.track[0].sec;
+      stream->cdrom.cur_frame = vfs_cdrom_toc.track[0].frame;
+      stream->cdrom.cur_lba = cdrom_msf_to_lba(stream->cdrom.cur_min, stream->cdrom.cur_sec, stream->cdrom.cur_frame);
+   }
+}
+
+int retro_vfs_file_close_cdrom(libretro_vfs_implementation_file *stream)
+{
+#ifdef CDROM_DEBUG
+   printf("[CDROM] Close: Path %s\n", stream->orig_path);
+   fflush(stdout);
+#endif
+
+#if defined(_WIN32) && !defined(_XBOX)
+   if (!stream->fh || !CloseHandle(stream->fh))
+      return -1;
+#else
+   if (!stream->fp || fclose(stream->fp))
+      return -1;
+#endif
+
+   return 0;
+}
+
+int64_t retro_vfs_file_tell_cdrom(libretro_vfs_implementation_file *stream)
+{
+   const char *ext = NULL;
+   if (!stream)
+      return -1;
+
+   ext = path_get_extension(stream->orig_path);
+
+   if (string_is_equal_noncase(ext, "cue"))
+   {
+#ifdef CDROM_DEBUG
+      printf("[CDROM] (cue) Tell: Path %s Position %" PRIu64 "\n", stream->orig_path, stream->cdrom.byte_pos);
+      fflush(stdout);
+#endif
+      return stream->cdrom.byte_pos;
+   }
+   else if (string_is_equal_noncase(ext, "bin"))
+   {
+#ifdef CDROM_DEBUG
+      printf("[CDROM] (bin) Tell: Path %s Position %" PRId64 "\n", stream->orig_path, stream->cdrom.byte_pos);
+      fflush(stdout);
+#endif
+      return stream->cdrom.byte_pos;
+   }
+
+   return -1;
+}
+
+int64_t retro_vfs_file_read_cdrom(libretro_vfs_implementation_file *stream,
+      void *s, uint64_t len)
+{
+   int rv;
+   const char *ext = path_get_extension(stream->orig_path);
+
+   if (string_is_equal_noncase(ext, "cue"))
+   {
+      if ((int64_t)len < (int64_t)stream->cdrom.cue_len - stream->cdrom.byte_pos)
+      {
+#ifdef CDROM_DEBUG
+         printf("[CDROM] Read: Reading %" PRIu64 " bytes from cuesheet starting at %" PRIu64 "...\n", len, stream->cdrom.byte_pos);
+         fflush(stdout);
+#endif
+         memcpy(s, stream->cdrom.cue_buf + stream->cdrom.byte_pos, len);
+         stream->cdrom.byte_pos += len;
+
+         return len;
+      }
+      else
+      {
+#ifdef CDROM_DEBUG
+         printf("[CDROM] Read: Reading %" PRIu64 " bytes from cuesheet starting at %" PRIu64 " failed.\n", len, stream->cdrom.byte_pos);
+         fflush(stdout);
+#endif
+         return 0;
+      }
+   }
+   else if (string_is_equal_noncase(ext, "bin"))
+   {
+      size_t skip = stream->cdrom.byte_pos % 2352;
+      unsigned char min = 0;
+      unsigned char sec = 0;
+      unsigned char frame = 0;
+      unsigned char rmin = 0;
+      unsigned char rsec = 0;
+      unsigned char rframe = 0;
+
+      if (stream->cdrom.byte_pos >= vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].track_bytes)
+         return 0;
+
+      if (stream->cdrom.byte_pos + len > vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].track_bytes)
+         len -= (stream->cdrom.byte_pos + len) - vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].track_bytes;
+
+      cdrom_lba_to_msf(stream->cdrom.cur_lba, &min, &sec, &frame);
+      cdrom_lba_to_msf(stream->cdrom.cur_lba - vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].lba, &rmin, &rsec, &rframe);
+
+#ifdef CDROM_DEBUG
+      printf("[CDROM] Read: Reading %" PRIu64 " bytes from %s starting at byte offset %" PRIu64 " (rMSF %02u:%02u:%02u aMSF %02u:%02u:%02u) (LBA %u) skip %" PRIu64 "...\n", len, stream->orig_path, stream->cdrom.byte_pos, (unsigned)rmin, (unsigned)rsec, (unsigned)rframe, (unsigned)min, (unsigned)sec, (unsigned)frame, stream->cdrom.cur_lba, skip);
+      fflush(stdout);
+#endif
+
+      rv = cdrom_read(stream, &vfs_cdrom_toc.timeouts, min, sec, frame, s, (size_t)len, skip);
+      /*rv = cdrom_read_lba(stream, stream->cdrom.cur_lba, s, (size_t)len, skip);*/
+
+      if (rv)
+      {
+#ifdef CDROM_DEBUG
+         printf("[CDROM] Failed to read %" PRIu64 " bytes from CD.\n", len);
+         fflush(stdout);
+#endif
+         return 0;
+      }
+
+      stream->cdrom.byte_pos += len;
+      stream->cdrom.cur_lba = vfs_cdrom_toc.track[stream->cdrom.cur_track - 1].lba + (stream->cdrom.byte_pos / 2352);
+
+      cdrom_lba_to_msf(stream->cdrom.cur_lba, &stream->cdrom.cur_min, &stream->cdrom.cur_sec, &stream->cdrom.cur_frame);
+
+#ifdef CDROM_DEBUG
+      printf("[CDROM] read %" PRIu64 " bytes, position is now: %" PRIu64 " (MSF %02u:%02u:%02u) (LBA %u)\n", len, stream->cdrom.byte_pos, (unsigned)stream->cdrom.cur_min, (unsigned)stream->cdrom.cur_sec, (unsigned)stream->cdrom.cur_frame, cdrom_msf_to_lba(stream->cdrom.cur_min, stream->cdrom.cur_sec, stream->cdrom.cur_frame));
+      fflush(stdout);
+#endif
+
+      return len;
+   }
+
+   return 0;
+}
+
+int retro_vfs_file_error_cdrom(libretro_vfs_implementation_file *stream)
+{
+   return 0;
+}
+
+const vfs_cdrom_t* retro_vfs_file_get_cdrom_position(const libretro_vfs_implementation_file *stream)
+{
+   return &stream->cdrom;
+}

mednafen/cdrom/CDAccess_Image.cpp

@@ -670,7 +670,13 @@ bool CDAccess_Image::ImageOpen(const std::string& path, bool image_memcache)
                active_track = -1;
             }
 
-            std::string efn = MDFN_EvalFIP(base_dir, args[0]);
+            std::string efn;
+
+            if(args[0].find("cdrom://") == std::string::npos)
+               efn = MDFN_EvalFIP(base_dir, args[0]);
+            else
+               efn = args[0];
+
             TmpTrack.fp = new FileStream(efn.c_str(), MODE_READ);
             TmpTrack.FirstFileInstance = 1;