Fetch nowide on Windows

Filenames are now unconditionally encoded/decoded as
Shift-JIS, which provides a reasonable fallback to
7-bit ASCII.

.gitignore

@@ -4,3 +4,7 @@ version.h
 .DS_Store
 *.autosave
 docs/*
+.idea/
+cmake-build-*
+build/
+out/

.gitmodules

@@ -1,3 +1,4 @@
 [submodule "logvisor"]
 	path = logvisor
 	url = ../logvisor.git
+	branch = master

CMakeLists.txt

@@ -1,27 +1,84 @@
 if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
   cmake_minimum_required(VERSION 3.10 FATAL_ERROR) # because of c++17
   project(nod VERSION 0.1)
-  if (NOT MSVC)
-    set(CMAKE_CXX_STANDARD 20)
+
+  if (MSVC)
+    # Shaddup MSVC
+    add_compile_definitions(UNICODE=1 _UNICODE=1 __SSE__=1
+        _CRT_SECURE_NO_WARNINGS=1 D_SCL_SECURE_NO_WARNINGS=1
+        _SCL_SECURE_NO_DEPRECATE=1 _CRT_NONSTDC_NO_WARNINGS=1
+        _ENABLE_EXTENDED_ALIGNED_STORAGE=1 NOMINMAX=1)
+    add_compile_options(/IGNORE:4221 /wd4018 /wd4800 /wd4005 /wd4311 /wd4068
+        /wd4267 /wd4244 /wd4200 /wd4305 /wd4067 /wd4146 /wd4309 /wd4805 /utf-8 ${VS_OPTIONS})
+
+    add_compile_options(
+      # Disable exceptions
+      $<$<COMPILE_LANGUAGE:CXX>:/EHsc->
+
+      # Disable RTTI
+      $<$<COMPILE_LANGUAGE:CXX>:/GR->
+
+      # Enforce various standards compliant behavior.
+      $<$<COMPILE_LANGUAGE:CXX>:/permissive->
+
+      # Enable standard volatile semantics.
+      $<$<COMPILE_LANGUAGE:CXX>:/volatile:iso>
+
+      # Reports the proper value for the __cplusplus preprocessor macro.
+      $<$<COMPILE_LANGUAGE:CXX>:/Zc:__cplusplus>
+
+      # Use latest C++ standard.
+      $<$<COMPILE_LANGUAGE:CXX>:/std:c++latest>
+    )
+    add_compile_definitions(FMT_EXCEPTIONS=0 _HAS_EXCEPTIONS=0)
+
+    if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
+      # Flags for MSVC (not clang-cl)
+      add_compile_options(
+        # Allow constexpr variables to have explicit external linkage.
+        $<$<COMPILE_LANGUAGE:CXX>:/Zc:externConstexpr>
+
+        # Assume that new throws exceptions, allowing better code generation.
+        $<$<COMPILE_LANGUAGE:CXX>:/Zc:throwingNew>
+
+        # Link-time Code Generation for Release builds
+        $<$<OR:$<CONFIG:Release>,$<CONFIG:RelWithDebInfo>>:/GL>
+      )
+
+      # Link-time Code Generation for Release builds
+      set(CMAKE_STATIC_LINKER_FLAGS_RELEASE "/LTCG")
+      set(CMAKE_STATIC_LINKER_FLAGS_RELWITHDEBINFO "/LTCG")
+      set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO")
+      set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "/DEBUG /RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO /DEBUGTYPE:cv,fixup")
+    endif()
+  else()
+    set(CMAKE_CXX_STANDARD 17)
     set(CMAKE_CXX_STANDARD_REQUIRED ON)
   endif()
 endif()
 
 include (CMakePackageConfigHelpers)
 
-if (MSVC)
-  # Shaddup MSVC
-  add_definitions(-DUNICODE=1 -D_UNICODE=1 -D__SSE__=1 -D_CRT_SECURE_NO_WARNINGS=1 -DD_SCL_SECURE_NO_WARNINGS=1
-      /IGNORE:4221 /wd4018 /wd4800 /wd4005 /wd4311 /wd4267 /wd4244 /wd4200 /wd4305 /wd4067 /wd4146 ${VS_DEFINES})
-endif()
+if (WIN32 AND NOT TARGET nowide)
+  include(FetchContent)
+  FetchContent_Declare(
+    nowide
+    URL https://github.com/boostorg/nowide/releases/download/v11.3.0/nowide_standalone_v11.3.0.tar.gz
+    URL_HASH SHA256=153ac93173c8de9c08e7701e471fa750f84c27e51fe329570c5aa06016591f8c
+    DOWNLOAD_EXTRACT_TIMESTAMP TRUE
+    EXCLUDE_FROM_ALL
+  )
+  FetchContent_MakeAvailable(nowide)
+endif ()
 
-if (NOT TARGET logvisor)
-  add_subdirectory(logvisor)
+if(NOT TARGET spdlog)
+  find_package(spdlog REQUIRED)
 endif()
 
 add_subdirectory(lib)
 add_subdirectory(driver)
 
+if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
 set(version_config_file "${PROJECT_BINARY_DIR}/nodConfigVersion.cmake")
 set(config_file "${PROJECT_BINARY_DIR}/nodConfig.cmake")
 set(config_install_dir "lib/cmake/nod")
@@ -51,3 +108,4 @@ install(
     FILES "${config_file}" "${version_config_file}"
     DESTINATION ${config_install_dir}
 )
+endif()

README.md

@@ -34,7 +34,7 @@ a content pipeline using the `nod::DiscBuilderBase` interface.
 ```cpp
 /* Sample logging lambda for progress feedback */
 size_t lastIdx = -1;
-auto progFunc = [&](size_t idx, const nod::SystemString& name, size_t bytes)
+auto progFunc = [&](size_t idx, const std::string& name, size_t bytes)
 {
     if (idx != lastIdx)
     {

driver/CMakeLists.txt

@@ -1,11 +1,13 @@
 add_executable(nodtool main.cpp)
 
-target_link_libraries(nodtool nod logvisor)
+target_link_libraries(nodtool nod spdlog::spdlog)
 if (NOT WIN32)
     target_link_libraries(nodtool pthread)
-    if(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
+    if (${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
         target_link_libraries(nodtool execinfo)
-    else()
+    else ()
         target_link_libraries(nodtool dl)
-    endif()
-endif()
+    endif ()
+else ()
+    target_sources(nodtool PRIVATE app.manifest)
+endif ()

driver/app.manifest

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <assemblyIdentity type="win32" name="..." version="6.0.0.0"/>
+  <application>
+    <windowsSettings>
+      <activeCodePage xmlns="http://schemas.microsoft.com/SMI/2019/WindowsSettings">UTF-8</activeCodePage>
+    </windowsSettings>
+  </application>
+</assembly>

driver/main.cpp

@@ -1,227 +1,309 @@
+#include <array>
 #include <cstddef>
 #include <cstdint>
 #include <cstdio>
 #include <cstring>
+#if _WIN32
+#include <fcntl.h>
+#include <io.h>
+#endif
 
-#include <logvisor/logvisor.hpp>
+#include <spdlog/spdlog.h>
 
 #include <nod/DiscBase.hpp>
 #include <nod/DiscGCN.hpp>
 #include <nod/DiscWii.hpp>
 #include <nod/nod.hpp>
+#include "../lib/Util.hpp"
 
 static void printHelp() {
-  fmt::print(stderr, FMT_STRING(
-          "Usage:\n"
-          "  nodtool extract [-f] <image-in> [<dir-out>]\n"
-          "  nodtool makegcn <fsroot-in> [<image-out>]\n"
-          "  nodtool makewii <fsroot-in> [<image-out>]\n"
-          "  nodtool mergegcn <fsroot-in> <image-in> [<image-out>]\n"
-          "  nodtool mergewii <fsroot-in> <image-in> [<image-out>]\n"));
+  fmt::print(stderr,
+    "Usage:\n"
+    "  nodtool extract [options] <image-in> [<dir-out>]\n"
+    "  nodtool makegcn [options] <fsroot-in> [<image-out>]\n"
+    "  nodtool makewii [options] <fsroot-in> [<image-out>]\n"
+    "  nodtool mergegcn [options] <fsroot-in> <image-in> [<image-out>]\n"
+    "  nodtool mergewii [options] <fsroot-in> <image-in> [<image-out>]\n"
+    "Options:\n"
+    "  -f         Force (extract only)\n"
+    "  -v         Verbose details (extract only).\n");
 }
 
-#if NOD_UCS2
-#ifdef strcasecmp
-#undef strcasecmp
-#endif
-#define strcasecmp _wcsicmp
+#if _MSC_VER
+#include <nowide/args.hpp>
+
 #define PRISize "Iu"
-int wmain(int argc, wchar_t* argv[])
+int main(int argc, char* argv[]) {
+  nowide::args _(argc, argv);
 #else
 #define PRISize "zu"
-int main(int argc, char* argv[])
+int main(int argc, char* argv[]) {
 #endif
-{
-  if (argc < 3 || (!strcasecmp(argv[1], _SYS_STR("makegcn")) && argc < 3) ||
-      (!strcasecmp(argv[1], _SYS_STR("makewii")) && argc < 3) ||
-      (!strcasecmp(argv[1], _SYS_STR("mergegcn")) && argc < 4) ||
-      (!strcasecmp(argv[1], _SYS_STR("mergewii")) && argc < 4)) {
+  int argidx = 1;
+  std::string errand;
+  bool verbose = false;
+  nod::ExtractionContext ctx = {true, [&](std::string_view str, float c) {
+                                  if (verbose)
+                                    fmt::print(stderr, "Current node: {}, Extraction {:g}% Complete\n", str,
+                                               c * 100.f);
+                                }};
+  while (argidx < argc) {
+    if (!nod::StrCaseCmp(argv[argidx], "-f")) {
+      ctx.force = true;
+      ++argidx;
+      continue;
+    } else if (!nod::StrCaseCmp(argv[argidx], "-v")) {
+      verbose = true;
+      ++argidx;
+      continue;
+    } else if (errand.empty()) {
+      errand = argv[argidx];
+      ++argidx;
+      continue;
+    } else {
+      break;
+    }
+  }
+
+  if (errand.empty()) {
     printHelp();
     return 1;
   }
 
-  /* Enable logging to console */
-  logvisor::RegisterStandardExceptions();
-  logvisor::RegisterConsoleLogger();
-
-  bool verbose = false;
-  nod::ExtractionContext ctx = {true, [&](std::string_view str, float c) {
-                                  if (verbose)
-                                    fmt::print(stderr, FMT_STRING("Current node: {}, Extraction {:g}% Complete\n"), str,
-                                               c * 100.f);
-                                }};
-  const nod::SystemChar* inDir = nullptr;
-  const nod::SystemChar* outDir = _SYS_STR(".");
-
-  for (int a = 2; a < argc; ++a) {
-    if (argv[a][0] == '-' && argv[a][1] == 'f')
-      ctx.force = true;
-    else if (argv[a][0] == '-' && argv[a][1] == 'v')
-      verbose = true;
-
-    else if (!inDir)
-      inDir = argv[a];
-    else
-      outDir = argv[a];
-  }
-
-  auto progFunc = [&](float prog, nod::SystemStringView name, size_t bytes) {
-    fmt::print(FMT_STRING(_SYS_STR("\r                                                                      ")));
+  auto progFunc = [&](float prog, std::string_view name, size_t bytes) {
+    fmt::print("\r                                                                      ");
     if (bytes != SIZE_MAX)
-      fmt::print(FMT_STRING(_SYS_STR("\r{:g}% {} {} B")), prog * 100.f, name, bytes);
+      fmt::print("\r{:g}% {} {} B", prog * 100.f, name, bytes);
     else
-      fmt::print(FMT_STRING(_SYS_STR("\r{:g}% {}")), prog * 100.f, name);
+      fmt::print("\r{:g}% {}", prog * 100.f, name);
     fflush(stdout);
   };
 
-  if (!strcasecmp(argv[1], _SYS_STR("extract"))) {
+  if (errand == "extract") {
+    std::string imageIn;
+    std::string dirOut;
+    while (argidx < argc) {
+      if (imageIn.empty()) {
+        imageIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (dirOut.empty()) {
+        dirOut = argv[argidx];
+        ++argidx;
+        continue;
+      } else {
+        printHelp();
+        return 1;
+      }
+    }
+    if (dirOut.empty())
+      dirOut = ".";
+
     bool isWii;
-    std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(inDir, isWii);
+    std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(imageIn, isWii);
     if (!disc)
       return 1;
 
-    nod::Mkdir(outDir, 0755);
+    nod::Mkdir(dirOut.c_str(), 0755);
 
     nod::IPartition* dataPart = disc->getDataPartition();
     if (!dataPart)
       return 1;
 
-    if (!dataPart->extractToDirectory(outDir, ctx))
+    if (!dataPart->extractToDirectory(dirOut, ctx))
       return 1;
-  } else if (!strcasecmp(argv[1], _SYS_STR("makegcn"))) {
+  } else if (errand == "makegcn") {
+    std::string fsrootIn;
+    std::string imageOut;
+    while (argidx < argc) {
+      if (fsrootIn.empty()) {
+        fsrootIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageOut.empty()) {
+        imageOut = argv[argidx];
+        ++argidx;
+        continue;
+      } else {
+        printHelp();
+        return 1;
+      }
+    }
+    if (imageOut.empty())
+      imageOut = fsrootIn + ".gcm";
+
     /* Pre-validate path */
     nod::Sstat theStat;
-    if (nod::Stat(argv[2], &theStat) || !S_ISDIR(theStat.st_mode)) {
-      nod::LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {} as directory")), argv[2]);
+    if (nod::Stat(fsrootIn.c_str(), &theStat) || !S_ISDIR(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as directory");
       return 1;
     }
 
-    if (!nod::DiscBuilderGCN::CalculateTotalSizeRequired(argv[2]))
+    if (!nod::DiscBuilderGCN::CalculateTotalSizeRequired(fsrootIn))
       return 1;
 
     nod::EBuildResult ret;
 
-    if (argc < 4) {
-      nod::SystemString outPath(argv[2]);
-      outPath.append(_SYS_STR(".iso"));
-      nod::DiscBuilderGCN b(outPath, progFunc);
-      ret = b.buildFromDirectory(argv[2]);
-    } else {
-      nod::DiscBuilderGCN b(argv[3], progFunc);
-      ret = b.buildFromDirectory(argv[2]);
-    }
+    nod::DiscBuilderGCN b(imageOut, progFunc);
+    ret = b.buildFromDirectory(fsrootIn);
 
-    fmt::print(FMT_STRING("\n"));
+    fmt::print("\n");
     if (ret != nod::EBuildResult::Success)
       return 1;
-  } else if (!strcasecmp(argv[1], _SYS_STR("makewii"))) {
+  } else if (errand == "makewii") {
+    std::string fsrootIn;
+    std::string imageOut;
+    while (argidx < argc) {
+      if (fsrootIn.empty()) {
+        fsrootIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageOut.empty()) {
+        imageOut = argv[argidx];
+        ++argidx;
+        continue;
+      } else {
+        printHelp();
+        return 1;
+      }
+    }
+    if (imageOut.empty())
+      imageOut = fsrootIn + ".iso";
+
     /* Pre-validate path */
     nod::Sstat theStat;
-    if (nod::Stat(argv[2], &theStat) || !S_ISDIR(theStat.st_mode)) {
-      nod::LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {} as directory")), argv[4]);
+    if (nod::Stat(fsrootIn.c_str(), &theStat) || !S_ISDIR(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as directory");
       return 1;
     }
 
     bool dual = false;
-    if (!nod::DiscBuilderWii::CalculateTotalSizeRequired(argv[2], dual))
+    if (!nod::DiscBuilderWii::CalculateTotalSizeRequired(fsrootIn, dual))
       return 1;
 
     nod::EBuildResult ret;
 
-    if (argc < 4) {
-      nod::SystemString outPath(argv[2]);
-      outPath.append(_SYS_STR(".iso"));
-      nod::DiscBuilderWii b(outPath.c_str(), dual, progFunc);
-      ret = b.buildFromDirectory(argv[2]);
-    } else {
-      nod::DiscBuilderWii b(argv[3], dual, progFunc);
-      ret = b.buildFromDirectory(argv[2]);
-    }
+    nod::DiscBuilderWii b(imageOut, dual, progFunc);
+    ret = b.buildFromDirectory(fsrootIn);
 
-    fmt::print(FMT_STRING("\n"));
+    fmt::print("\n");
     if (ret != nod::EBuildResult::Success)
       return 1;
-  } else if (!strcasecmp(argv[1], _SYS_STR("mergegcn"))) {
+  } else if (errand == "mergegcn") {
+    std::string fsrootIn;
+    std::string imageIn;
+    std::string imageOut;
+    while (argidx < argc) {
+      if (fsrootIn.empty()) {
+        fsrootIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageIn.empty()) {
+        imageIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageOut.empty()) {
+        imageOut = argv[argidx];
+        ++argidx;
+        continue;
+      } else {
+        printHelp();
+        return 1;
+      }
+    }
+    if (imageOut.empty())
+      imageOut = fsrootIn + ".gcm";
+
     /* Pre-validate paths */
     nod::Sstat theStat;
-    if (nod::Stat(argv[2], &theStat) || !S_ISDIR(theStat.st_mode)) {
-      nod::LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {} as directory")), argv[2]);
+    if (nod::Stat(fsrootIn.c_str(), &theStat) || !S_ISDIR(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as directory");
       return 1;
     }
-    if (nod::Stat(argv[3], &theStat) || !S_ISREG(theStat.st_mode)) {
-      nod::LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {} as file")), argv[3]);
+    if (nod::Stat(imageIn.c_str(), &theStat) || !S_ISREG(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as file");
       return 1;
     }
 
     bool isWii;
-    std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(argv[3], isWii);
+    std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(imageIn, isWii);
     if (!disc) {
-      nod::LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to open image {}")), argv[3]);
+      spdlog::error("unable to open image {}");
       return 1;
     }
     if (isWii) {
-      nod::LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("Wii images should be merged with 'mergewii'")));
+      spdlog::error("Wii images should be merged with 'mergewii'");
       return 1;
     }
 
-    if (!nod::DiscMergerGCN::CalculateTotalSizeRequired(static_cast<nod::DiscGCN&>(*disc), argv[2]))
+    if (!nod::DiscMergerGCN::CalculateTotalSizeRequired(static_cast<nod::DiscGCN&>(*disc), fsrootIn))
       return 1;
 
     nod::EBuildResult ret;
 
-    if (argc < 5) {
-      nod::SystemString outPath(argv[2]);
-      outPath.append(_SYS_STR(".iso"));
-      nod::DiscMergerGCN b(outPath.c_str(), static_cast<nod::DiscGCN&>(*disc), progFunc);
-      ret = b.mergeFromDirectory(argv[2]);
-    } else {
-      nod::DiscMergerGCN b(argv[4], static_cast<nod::DiscGCN&>(*disc), progFunc);
-      ret = b.mergeFromDirectory(argv[2]);
-    }
+    nod::DiscMergerGCN b(imageOut, static_cast<nod::DiscGCN&>(*disc), progFunc);
+    ret = b.mergeFromDirectory(fsrootIn);
 
-    fmt::print(FMT_STRING("\n"));
+    fmt::print("\n");
     if (ret != nod::EBuildResult::Success)
       return 1;
-  } else if (!strcasecmp(argv[1], _SYS_STR("mergewii"))) {
+  } else if (errand == "mergewii") {
+    std::string fsrootIn;
+    std::string imageIn;
+    std::string imageOut;
+    while (argidx < argc) {
+      if (fsrootIn.empty()) {
+        fsrootIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageIn.empty()) {
+        imageIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageOut.empty()) {
+        imageOut = argv[argidx];
+        ++argidx;
+        continue;
+      } else {
+        printHelp();
+        return 1;
+      }
+    }
+    if (imageOut.empty())
+      imageOut = fsrootIn + ".iso";
+
     /* Pre-validate paths */
     nod::Sstat theStat;
-    if (nod::Stat(argv[2], &theStat) || !S_ISDIR(theStat.st_mode)) {
-      nod::LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {} as directory")), argv[2]);
+    if (nod::Stat(fsrootIn.c_str(), &theStat) || !S_ISDIR(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as directory");
       return 1;
     }
-    if (nod::Stat(argv[3], &theStat) || !S_ISREG(theStat.st_mode)) {
-      nod::LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {} as file")), argv[3]);
+    if (nod::Stat(imageIn.c_str(), &theStat) || !S_ISREG(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as file");
       return 1;
     }
 
     bool isWii;
-    std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(argv[3], isWii);
+    std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(imageIn, isWii);
     if (!disc) {
-      nod::LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to open image {}")), argv[3]);
+      spdlog::error("unable to open image {}");
       return 1;
     }
     if (!isWii) {
-      nod::LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("GameCube images should be merged with 'mergegcn'")));
+      spdlog::error("GameCube images should be merged with 'mergegcn'");
       return 1;
     }
 
     bool dual = false;
-    if (!nod::DiscMergerWii::CalculateTotalSizeRequired(static_cast<nod::DiscWii&>(*disc), argv[2], dual))
+    if (!nod::DiscMergerWii::CalculateTotalSizeRequired(static_cast<nod::DiscWii&>(*disc), fsrootIn, dual))
       return 1;
 
     nod::EBuildResult ret;
 
-    if (argc < 5) {
-      nod::SystemString outPath(argv[2]);
-      outPath.append(_SYS_STR(".iso"));
-      nod::DiscMergerWii b(outPath.c_str(), static_cast<nod::DiscWii&>(*disc), dual, progFunc);
-      ret = b.mergeFromDirectory(argv[2]);
-    } else {
-      nod::DiscMergerWii b(argv[4], static_cast<nod::DiscWii&>(*disc), dual, progFunc);
-      ret = b.mergeFromDirectory(argv[2]);
-    }
+    nod::DiscMergerWii b(imageOut, static_cast<nod::DiscWii&>(*disc), dual, progFunc);
+    ret = b.mergeFromDirectory(fsrootIn);
 
-    fmt::print(FMT_STRING("\n"));
+    fmt::print("\n");
     if (ret != nod::EBuildResult::Success)
       return 1;
   } else {
@@ -229,6 +311,6 @@ int main(int argc, char* argv[])
     return 1;
   }
 
-  nod::LogModule.report(logvisor::Info, FMT_STRING(_SYS_STR("Success!")));
+  spdlog::info("Success!");
   return 0;
 }

include/nod/DirectoryEnumerator.hpp

@@ -4,51 +4,49 @@
 #include <cctype>
 #include <cstddef>
 #include <vector>
-
-#include "nod/Util.hpp"
+#include <string>
+#include <string_view>
 
 namespace nod {
 
+/**
+ * @brief Case-insensitive comparator for std::map sorting
+ */
 struct CaseInsensitiveCompare {
+  // Allow heterogeneous lookup with maps that use this comparator.
+  using is_transparent = void;
+
   bool operator()(std::string_view lhs, std::string_view rhs) const {
     return std::lexicographical_compare(lhs.begin(), lhs.end(), rhs.begin(), rhs.end(), [](char lhs, char rhs) {
       return std::tolower(static_cast<unsigned char>(lhs)) < std::tolower(static_cast<unsigned char>(rhs));
     });
   }
-
-#if _WIN32
-  bool operator()(std::wstring_view lhs, std::wstring_view rhs) const {
-    return std::lexicographical_compare(lhs.begin(), lhs.end(), rhs.begin(), rhs.end(), [](wchar_t lhs, wchar_t rhs) {
-      return std::towlower(lhs) < std::towlower(rhs);
-    });
-  }
-#endif
 };
 
 class DirectoryEnumerator {
 public:
   enum class Mode { Native, DirsSorted, FilesSorted, DirsThenFilesSorted };
   struct Entry {
-    SystemString m_path;
-    SystemString m_name;
+    std::string m_path;
+    std::string m_name;
     size_t m_fileSz;
     bool m_isDir;
 
-    Entry(const SystemString& path, const SystemChar* name, size_t sz, bool isDir)
-    : m_path(path), m_name(name), m_fileSz(sz), m_isDir(isDir) {}
+    Entry(std::string path, std::string name, size_t sz, bool isDir)
+    : m_path(std::move(path)), m_name(std::move(name)), m_fileSz(sz), m_isDir(isDir) {}
   };
 
 private:
   std::vector<Entry> m_entries;
 
 public:
-  DirectoryEnumerator(SystemStringView path, Mode mode = Mode::DirsThenFilesSorted, bool sizeSort = false,
+  DirectoryEnumerator(std::string_view path, Mode mode = Mode::DirsThenFilesSorted, bool sizeSort = false,
                       bool reverse = false, bool noHidden = false);
 
-  operator bool() const { return m_entries.size() != 0; }
-  size_t size() const { return m_entries.size(); }
-  std::vector<Entry>::const_iterator begin() const { return m_entries.cbegin(); }
-  std::vector<Entry>::const_iterator end() const { return m_entries.cend(); }
+  explicit operator bool() const { return !m_entries.empty(); }
+  [[nodiscard]] size_t size() const { return m_entries.size(); }
+  [[nodiscard]] std::vector<Entry>::const_iterator begin() const { return m_entries.cbegin(); }
+  [[nodiscard]] std::vector<Entry>::const_iterator end() const { return m_entries.cend(); }
 };
 
 } // namespace nod

include/nod/DiscBase.hpp

@@ -4,24 +4,23 @@
 #include <cstdint>
 #include <cstring>
 #include <functional>
-#include <memory>
 #include <optional>
 #include <string>
-#include <unordered_map>
-#include <vector>
+#include <string_view>
 
 #include "nod/IDiscIO.hpp"
 #include "nod/IFileIO.hpp"
-#include "nod/Util.hpp"
+#include "nod/OSUTF.h"
+#include "nod/Endian.hpp"
 
 namespace nod {
 
-using FProgress = std::function<void(float totalProg, SystemStringView fileName, size_t fileBytesXfered)>;
+using FProgress = std::function<void(float totalProg, std::string_view fileName, size_t fileBytesXfered)>;
 
 enum class EBuildResult { Success, Failed, DiskFull };
 
 enum class PartitionKind : uint32_t { Data, Update, Channel };
-const SystemChar* getKindString(PartitionKind kind);
+const char* getKindString(PartitionKind kind);
 
 class FSTNode {
   uint32_t typeAndNameOffset;
@@ -236,7 +235,7 @@ public:
     return end();
   }
 
-  bool extractToDirectory(SystemStringView basePath, const ExtractionContext& ctx) const;
+  bool extractToDirectory(std::string_view basePath, const ExtractionContext& ctx) const;
 };
 
 class IPartition {
@@ -307,7 +306,7 @@ public:
   }
   const Node& getFSTRoot() const { return m_nodes[0]; }
   Node& getFSTRoot() { return m_nodes[0]; }
-  bool extractToDirectory(SystemStringView path, const ExtractionContext& ctx);
+  bool extractToDirectory(std::string_view path, const ExtractionContext& ctx);
 
   uint64_t getDOLSize() const { return m_dolSz; }
   std::unique_ptr<uint8_t[]> getDOLBuf() const {
@@ -333,8 +332,8 @@ public:
   size_t getNodeCount() const { return m_nodes.size(); }
   const Header& getHeader() const { return m_header; }
   const BI2Header& getBI2() const { return m_bi2Header; }
-  virtual bool extractCryptoFiles(SystemStringView path, const ExtractionContext& ctx) const { return true; }
-  bool extractSysFiles(SystemStringView path, const ExtractionContext& ctx) const;
+  virtual bool extractCryptoFiles(std::string_view path, const ExtractionContext& ctx) const { return true; }
+  bool extractSysFiles(std::string_view path, const ExtractionContext& ctx) const;
 };
 
 class DiscBase {
@@ -372,12 +371,12 @@ public:
     return nullptr;
   }
 
-  void extractToDirectory(SystemStringView path, const ExtractionContext& ctx) {
+  void extractToDirectory(std::string_view path, const ExtractionContext& ctx) {
     for (std::unique_ptr<IPartition>& part : m_partitions)
       part->extractToDirectory(path, ctx);
   }
 
-  virtual bool extractDiscHeaderFiles(SystemStringView path, const ExtractionContext& ctx) const = 0;
+  virtual bool extractDiscHeaderFiles(std::string_view path, const ExtractionContext& ctx) const = 0;
 };
 
 class DiscBuilderBase {
@@ -389,30 +388,30 @@ public:
     virtual ~PartitionBuilderBase() = default;
 
   protected:
-    std::unordered_map<SystemString, std::pair<uint64_t, uint64_t>> m_fileOffsetsSizes;
+    std::unordered_map<std::string, std::pair<uint64_t, uint64_t>> m_fileOffsetsSizes;
     std::vector<FSTNode> m_buildNodes;
     std::vector<std::string> m_buildNames;
     size_t m_buildNameOff = 0;
     virtual uint64_t userAllocate(uint64_t reqSz, IPartWriteStream& ws) = 0;
     virtual uint32_t packOffset(uint64_t offset) const = 0;
 
-    void recursiveBuildNodesPre(SystemStringView dirIn);
-    bool recursiveBuildNodes(IPartWriteStream& ws, bool system, SystemStringView dirIn);
+    void recursiveBuildNodesPre(std::string_view dirIn);
+    bool recursiveBuildNodes(IPartWriteStream& ws, bool system, std::string_view dirIn);
 
-    bool recursiveBuildFST(SystemStringView dirIn, std::function<void(void)> incParents, size_t parentDirIdx);
+    bool recursiveBuildFST(std::string_view dirIn, std::function<void(void)> incParents, size_t parentDirIdx);
 
-    void recursiveMergeNodesPre(const Node* nodeIn, SystemStringView dirIn);
-    bool recursiveMergeNodes(IPartWriteStream& ws, bool system, const Node* nodeIn, SystemStringView dirIn,
-                             SystemStringView keyPath);
-    bool recursiveMergeFST(const Node* nodeIn, SystemStringView dirIn, std::function<void(void)> incParents,
-                           SystemStringView keyPath);
+    void recursiveMergeNodesPre(const Node* nodeIn, std::string_view dirIn);
+    bool recursiveMergeNodes(IPartWriteStream& ws, bool system, const Node* nodeIn, std::string_view dirIn,
+                             std::string_view keyPath);
+    bool recursiveMergeFST(const Node* nodeIn, std::string_view dirIn, std::function<void(void)> incParents,
+                           size_t parentDirIdx, std::string_view keyPath);
 
-    static bool RecursiveCalculateTotalSize(uint64_t& totalSz, const Node* nodeIn, SystemStringView dirIn);
+    static bool RecursiveCalculateTotalSize(uint64_t& totalSz, const Node* nodeIn, std::string_view dirIn);
 
-    void addBuildName(SystemStringView str) {
-      SystemUTF8Conv utf8View(str);
-      m_buildNames.emplace_back(utf8View.utf8_str());
-      m_buildNameOff += str.size() + 1;
+    void addBuildName(std::string_view str) {
+      UTF8ToSJIS nameView(str);
+      m_buildNames.emplace_back(nameView.str());
+      m_buildNameOff += nameView.str().size() + 1;
     }
 
     DiscBuilderBase& m_parent;
@@ -425,14 +424,14 @@ public:
     PartitionBuilderBase(DiscBuilderBase& parent, PartitionKind kind, bool isWii)
     : m_parent(parent), m_kind(kind), m_isWii(isWii) {}
     virtual std::unique_ptr<IPartWriteStream> beginWriteStream(uint64_t offset) = 0;
-    bool buildFromDirectory(IPartWriteStream& ws, SystemStringView dirIn);
-    static std::optional<uint64_t> CalculateTotalSizeBuild(SystemStringView dirIn, PartitionKind kind, bool isWii);
-    bool mergeFromDirectory(IPartWriteStream& ws, const IPartition* partIn, SystemStringView dirIn);
-    static std::optional<uint64_t> CalculateTotalSizeMerge(const IPartition* partIn, SystemStringView dirIn);
+    bool buildFromDirectory(IPartWriteStream& ws, std::string_view dirIn);
+    static std::optional<uint64_t> CalculateTotalSizeBuild(std::string_view dirIn, PartitionKind kind, bool isWii);
+    bool mergeFromDirectory(IPartWriteStream& ws, const IPartition* partIn, std::string_view dirIn);
+    static std::optional<uint64_t> CalculateTotalSizeMerge(const IPartition* partIn, std::string_view dirIn);
   };
 
 protected:
-  SystemString m_outPath;
+  std::string m_outPath;
   std::unique_ptr<IFileIO> m_fileIO;
   std::vector<std::unique_ptr<PartitionBuilderBase>> m_partitions;
   int64_t m_discCapacity;
@@ -455,7 +454,7 @@ public:
   }
 
   virtual ~DiscBuilderBase() = default;
-  DiscBuilderBase(SystemStringView outPath, int64_t discCapacity, FProgress progressCB)
+  DiscBuilderBase(std::string_view outPath, int64_t discCapacity, FProgress progressCB)
   : m_outPath(outPath)
   , m_fileIO(NewFileIO(outPath, discCapacity))
   , m_discCapacity(discCapacity)

include/nod/DiscGCN.hpp

@@ -7,20 +7,20 @@ class DiscBuilderGCN;
 
 class DiscGCN : public DiscBase {
   friend class DiscMergerGCN;
-  DiscBuilderGCN makeMergeBuilder(SystemStringView outPath, FProgress progressCB);
+  DiscBuilderGCN makeMergeBuilder(std::string_view outPath, FProgress progressCB);
 
 public:
   DiscGCN(std::unique_ptr<IDiscIO>&& dio, bool& err);
-  bool extractDiscHeaderFiles(SystemStringView path, const ExtractionContext& ctx) const override;
+  bool extractDiscHeaderFiles(std::string_view path, const ExtractionContext& ctx) const override;
 };
 
 class DiscBuilderGCN : public DiscBuilderBase {
   friend class DiscMergerGCN;
 
 public:
-  DiscBuilderGCN(SystemStringView outPath, FProgress progressCB);
-  EBuildResult buildFromDirectory(SystemStringView dirIn);
-  static std::optional<uint64_t> CalculateTotalSizeRequired(SystemStringView dirIn);
+  DiscBuilderGCN(std::string_view outPath, FProgress progressCB);
+  EBuildResult buildFromDirectory(std::string_view dirIn);
+  static std::optional<uint64_t> CalculateTotalSizeRequired(std::string_view dirIn);
 };
 
 class DiscMergerGCN {
@@ -28,9 +28,9 @@ class DiscMergerGCN {
   DiscBuilderGCN m_builder;
 
 public:
-  DiscMergerGCN(SystemStringView outPath, DiscGCN& sourceDisc, FProgress progressCB);
-  EBuildResult mergeFromDirectory(SystemStringView dirIn);
-  static std::optional<uint64_t> CalculateTotalSizeRequired(DiscGCN& sourceDisc, SystemStringView dirIn);
+  DiscMergerGCN(std::string_view outPath, DiscGCN& sourceDisc, FProgress progressCB);
+  EBuildResult mergeFromDirectory(std::string_view dirIn);
+  static std::optional<uint64_t> CalculateTotalSizeRequired(DiscGCN& sourceDisc, std::string_view dirIn);
 };
 
 } // namespace nod

include/nod/DiscWii.hpp

@@ -8,15 +8,15 @@ class DiscBuilderWii;
 class DiscWii : public DiscBase {
 public:
   DiscWii(std::unique_ptr<IDiscIO>&& dio, bool& err);
-  DiscBuilderWii makeMergeBuilder(SystemStringView outPath, bool dualLayer, FProgress progressCB);
-  bool extractDiscHeaderFiles(SystemStringView path, const ExtractionContext& ctx) const override;
+  DiscBuilderWii makeMergeBuilder(std::string_view outPath, bool dualLayer, FProgress progressCB);
+  bool extractDiscHeaderFiles(std::string_view path, const ExtractionContext& ctx) const override;
 };
 
 class DiscBuilderWii : public DiscBuilderBase {
 public:
-  DiscBuilderWii(SystemStringView outPath, bool dualLayer, FProgress progressCB);
-  EBuildResult buildFromDirectory(SystemStringView dirIn);
-  static std::optional<uint64_t> CalculateTotalSizeRequired(SystemStringView dirIn, bool& dualLayer);
+  DiscBuilderWii(std::string_view outPath, bool dualLayer, FProgress progressCB);
+  EBuildResult buildFromDirectory(std::string_view dirIn);
+  static std::optional<uint64_t> CalculateTotalSizeRequired(std::string_view dirIn, bool& dualLayer);
 };
 
 class DiscMergerWii {
@@ -24,9 +24,9 @@ class DiscMergerWii {
   DiscBuilderWii m_builder;
 
 public:
-  DiscMergerWii(SystemStringView outPath, DiscWii& sourceDisc, bool dualLayer, FProgress progressCB);
-  EBuildResult mergeFromDirectory(SystemStringView dirIn);
-  static std::optional<uint64_t> CalculateTotalSizeRequired(DiscWii& sourceDisc, SystemStringView dirIn, bool& dualLayer);
+  DiscMergerWii(std::string_view outPath, DiscWii& sourceDisc, bool dualLayer, FProgress progressCB);
+  EBuildResult mergeFromDirectory(std::string_view dirIn);
+  static std::optional<uint64_t> CalculateTotalSizeRequired(DiscWii& sourceDisc, std::string_view dirIn, bool& dualLayer);
 };
 
 } // namespace nod

include/nod/Endian.hpp

@@ -0,0 +1,78 @@
+#pragma once
+
+#include <cstdint>
+
+#undef bswap16
+#undef bswap32
+#undef bswap64
+
+namespace nod {
+/* Type-sensitive byte swappers */
+template <typename T>
+static inline T bswap16(T val) {
+#if __GNUC__
+  return __builtin_bswap16(val);
+#elif _WIN32
+  return _byteswap_ushort(val);
+#else
+  return (val = (val << 8) | ((val >> 8) & 0xFF));
+#endif
+}
+
+template <typename T>
+static inline T bswap32(T val) {
+#if __GNUC__
+  return __builtin_bswap32(val);
+#elif _WIN32
+  return _byteswap_ulong(val);
+#else
+  val = (val & 0x0000FFFF) << 16 | (val & 0xFFFF0000) >> 16;
+  val = (val & 0x00FF00FF) << 8 | (val & 0xFF00FF00) >> 8;
+  return val;
+#endif
+}
+
+template <typename T>
+static inline T bswap64(T val) {
+#if __GNUC__
+  return __builtin_bswap64(val);
+#elif _WIN32
+  return _byteswap_uint64(val);
+#else
+  return ((val & 0xFF00000000000000ULL) >> 56) | ((val & 0x00FF000000000000ULL) >> 40) |
+         ((val & 0x0000FF0000000000ULL) >> 24) | ((val & 0x000000FF00000000ULL) >> 8) |
+         ((val & 0x00000000FF000000ULL) << 8) | ((val & 0x0000000000FF0000ULL) << 24) |
+         ((val & 0x000000000000FF00ULL) << 40) | ((val & 0x00000000000000FFULL) << 56);
+#endif
+}
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+static inline int16_t SBig(int16_t val) { return bswap16(val); }
+static inline uint16_t SBig(uint16_t val) { return bswap16(val); }
+static inline int32_t SBig(int32_t val) { return bswap32(val); }
+static inline uint32_t SBig(uint32_t val) { return bswap32(val); }
+static inline int64_t SBig(int64_t val) { return bswap64(val); }
+static inline uint64_t SBig(uint64_t val) { return bswap64(val); }
+
+static inline int16_t SLittle(int16_t val) { return val; }
+static inline uint16_t SLittle(uint16_t val) { return val; }
+static inline int32_t SLittle(int32_t val) { return val; }
+static inline uint32_t SLittle(uint32_t val) { return val; }
+static inline int64_t SLittle(int64_t val) { return val; }
+static inline uint64_t SLittle(uint64_t val) { return val; }
+#else
+static inline int16_t SLittle(int16_t val) { return bswap16(val); }
+static inline uint16_t SLittle(uint16_t val) { return bswap16(val); }
+static inline int32_t SLittle(int32_t val) { return bswap32(val); }
+static inline uint32_t SLittle(uint32_t val) { return bswap32(val); }
+static inline int64_t SLittle(int64_t val) { return bswap64(val); }
+static inline uint64_t SLittle(uint64_t val) { return bswap64(val); }
+
+static inline int16_t SBig(int16_t val) { return val; }
+static inline uint16_t SBig(uint16_t val) { return val; }
+static inline int32_t SBig(int32_t val) { return val; }
+static inline uint32_t SBig(uint32_t val) { return val; }
+static inline int64_t SBig(int64_t val) { return val; }
+static inline uint64_t SBig(uint64_t val) { return val; }
+#endif
+} // namespace nod

include/nod/IFileIO.hpp

@@ -3,11 +3,9 @@
 #include <cstdint>
 #include <functional>
 #include <memory>
+#include <string_view>
 
 #include "nod/IDiscIO.hpp"
-#include "nod/Util.hpp"
-
-#include <logvisor/logvisor.hpp>
 
 namespace nod {
 
@@ -18,46 +16,8 @@ public:
   virtual uint64_t size() = 0;
 
   struct IWriteStream : nod::IWriteStream {
-    uint64_t copyFromDisc(IPartReadStream& discio, uint64_t length) {
-      uint64_t read = 0;
-      uint8_t buf[0x7c00];
-      while (length) {
-        uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
-        uint64_t readSz = discio.read(buf, thisSz);
-        if (thisSz != readSz) {
-          LogModule.report(logvisor::Error, FMT_STRING("unable to read enough from disc"));
-          return read;
-        }
-        if (write(buf, readSz) != readSz) {
-          LogModule.report(logvisor::Error, FMT_STRING("unable to write in file"));
-          return read;
-        }
-        length -= thisSz;
-        read += thisSz;
-      }
-      return read;
-    }
-    uint64_t copyFromDisc(IPartReadStream& discio, uint64_t length, const std::function<void(float)>& prog) {
-      uint64_t read = 0;
-      uint8_t buf[0x7c00];
-      uint64_t total = length;
-      while (length) {
-        uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
-        uint64_t readSz = discio.read(buf, thisSz);
-        if (thisSz != readSz) {
-          LogModule.report(logvisor::Error, FMT_STRING("unable to read enough from disc"));
-          return read;
-        }
-        if (write(buf, readSz) != readSz) {
-          LogModule.report(logvisor::Error, FMT_STRING("unable to write in file"));
-          return read;
-        }
-        length -= thisSz;
-        read += thisSz;
-        prog(read / float(total));
-      }
-      return read;
-    }
+    uint64_t copyFromDisc(IPartReadStream& discio, uint64_t length);
+    uint64_t copyFromDisc(IPartReadStream& discio, uint64_t length, const std::function<void(float)>& prog);
   };
   virtual std::unique_ptr<IWriteStream> beginWriteStream() const = 0;
   virtual std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const = 0;
@@ -69,6 +29,6 @@ public:
   virtual std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const = 0;
 };
 
-std::unique_ptr<IFileIO> NewFileIO(SystemStringView path, int64_t maxWriteSize = -1);
+std::unique_ptr<IFileIO> NewFileIO(std::string_view path, int64_t maxWriteSize = -1);
 
 } // namespace nod

include/nod/OSUTF.h

@@ -0,0 +1,113 @@
+#ifdef __cplusplus
+#include <array>
+#include <cstdint>
+
+#if !__cpp_char8_t
+using char8_t = uint8_t;
+#endif
+
+#define OS_CONSTEXPR constexpr
+
+extern "C" {
+#else
+#include <stdint.h>
+#include <stdbool.h>
+
+#define OS_CONSTEXPR
+
+typedef uint8_t char8_t;
+typedef uint16_t char16_t;
+typedef uint32_t char32_t;
+#endif
+
+OS_CONSTEXPR inline bool IsSjisLeadByte(char8_t c) { return (c > 0x80 && c < 0xa0) || (c > 0xdf && c < 0xfd); }
+
+OS_CONSTEXPR inline bool IsSjisTrailByte(char8_t c) { return c > 0x3f && c < 0xfd && c != 0x7f; }
+
+char32_t OSSJISToUTF32(char16_t sjis);
+
+char16_t OSUTF32ToSJIS(char32_t utf32);
+
+char8_t OSUTF32ToAnsi(char32_t utf32);
+
+char16_t* OSUTF32To16(char32_t utf32, char16_t* utf16);
+
+char8_t* OSUTF32To8(char32_t utf32, char8_t* utf8);
+
+const char16_t* OSUTF16To32(const char16_t* utf16, char32_t* utf32);
+
+const char8_t* OSUTF8To32(const char8_t* utf8, char32_t* utf32);
+
+#ifdef __cplusplus
+}
+
+class SJISToUTF8 {
+private:
+  std::string out;
+
+public:
+  SJISToUTF8(std::string_view sv) {
+    const auto* in = reinterpret_cast<const char8_t*>(sv.data());
+    const auto* end = in + sv.size();
+    std::array<char8_t, 4> u8arr{};
+    while (in < end) {
+      if (IsSjisLeadByte(*in)) {
+        char16_t sjis = static_cast<char16_t>(*in) << 8 | *(in + 1);
+        in += 2;
+        char32_t utf32 = OSSJISToUTF32(sjis);
+        if (utf32 == 0) {
+          continue;
+        }
+        char8_t* u8out = u8arr.data();
+        char8_t* u8end = OSUTF32To8(utf32, u8out);
+        if (u8end == nullptr) {
+          continue;
+        }
+        auto length = static_cast<size_t>(u8end - u8out);
+        out.append(std::string_view{reinterpret_cast<char*>(u8out), length});
+      } else {
+        out.push_back(static_cast<char>(*in++));
+      }
+    }
+  }
+
+  [[nodiscard]] const std::string& str() const { return out; }
+
+  [[nodiscard]] std::string& str() { return out; }
+
+  [[nodiscard]] const char* c_str() const { return out.c_str(); }
+};
+
+class UTF8ToSJIS {
+private:
+  std::string out;
+
+public:
+  UTF8ToSJIS(std::string_view sv) {
+    const auto* in = reinterpret_cast<const char8_t*>(sv.data());
+    const auto* end = in + sv.size();
+    while (in < end) {
+      char32_t utf32 = 0;
+      const char8_t* next = OSUTF8To32(in, &utf32);
+      if (next == nullptr) {
+        utf32 = *in;
+        in++;
+      } else {
+        in = next;
+      }
+      char16_t sjis = OSUTF32ToSJIS(utf32);
+      char8_t lead = (sjis >> 8) & 0xFF;
+      if (IsSjisLeadByte(lead)) {
+        out.push_back(static_cast<char>(lead));
+      }
+      out.push_back(static_cast<char>(sjis & 0xFF));
+    }
+  }
+
+  [[nodiscard]] const std::string& str() const { return out; }
+
+  [[nodiscard]] std::string& str() { return out; }
+
+  [[nodiscard]] const char* c_str() const { return out.c_str(); }
+};
+#endif

include/nod/Util.hpp

@@ -1,324 +0,0 @@
-#pragma once
-
-#if _WIN32 && UNICODE
-#include <cwctype>
-#include <direct.h>
-#ifndef WIN32_LEAN_AND_MEAN
-#define WIN32_LEAN_AND_MEAN 1
-#endif
-#ifndef NOMINMAX
-#define NOMINMAX
-#endif
-#include <windows.h>
-#if defined(WINAPI_FAMILY) && WINAPI_FAMILY != WINAPI_FAMILY_DESKTOP_APP
-#define WINDOWS_STORE 1
-#else
-#define WINDOWS_STORE 0
-#endif
-#else
-#include <cctype>
-#include <cerrno>
-#include <sys/file.h>
-#include <sys/param.h>
-#include <sys/statvfs.h>
-#include <unistd.h>
-#endif
-#include <sys/stat.h>
-
-#include <algorithm>
-#include <cstring>
-#include <string>
-#include <string_view>
-#include <logvisor/logvisor.hpp>
-#ifdef _MSC_VER
-#pragma warning(disable : 4996)
-
-#include <sys/stat.h>
-
-#if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG)
-#define S_ISREG(m) (((m)&S_IFMT) == S_IFREG)
-#endif
-
-#if !defined(S_ISDIR) && defined(S_IFMT) && defined(S_IFDIR)
-#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
-#endif
-
-#if !defined(S_ISLNK)
-#define S_ISLNK(m) 0
-#endif
-#endif
-
-#undef min
-#undef max
-
-namespace nod {
-/* define our own min/max to avoid MSVC BS */
-template <typename T>
-constexpr T min(T a, T b) {
-  return a < b ? a : b;
-}
-template <typename T>
-constexpr T max(T a, T b) {
-  return a > b ? a : b;
-}
-
-/* template-based div for flexible typing and avoiding a library call */
-template <typename T>
-constexpr auto div(T a, T b) {
-  struct DivTp { T quot, rem; };
-  return DivTp{a / b, a % b};
-}
-
-/* Log Module */
-extern logvisor::Module LogModule;
-
-/* filesystem char type */
-#if _WIN32 && UNICODE
-#define NOD_UCS2 1
-typedef struct _stat Sstat;
-static inline int Mkdir(const wchar_t* path, int) { return _wmkdir(path); }
-static inline int Stat(const wchar_t* path, Sstat* statout) { return _wstat(path, statout); }
-#else
-typedef struct stat Sstat;
-static inline int Mkdir(const char* path, mode_t mode) { return mkdir(path, mode); }
-static inline int Stat(const char* path, Sstat* statout) { return stat(path, statout); }
-#endif
-
-/* String-converting views */
-#if NOD_UCS2
-typedef wchar_t SystemChar;
-typedef std::wstring SystemString;
-typedef std::wstring_view SystemStringView;
-static inline void ToLower(SystemString& str) { std::transform(str.begin(), str.end(), str.begin(), towlower); }
-static inline void ToUpper(SystemString& str) { std::transform(str.begin(), str.end(), str.begin(), towupper); }
-static inline size_t StrLen(const SystemChar* str) { return wcslen(str); }
-class SystemUTF8Conv {
-  std::string m_utf8;
-
-public:
-  explicit SystemUTF8Conv(SystemStringView str) {
-    int len = WideCharToMultiByte(CP_UTF8, 0, str.data(), str.size(), nullptr, 0, nullptr, nullptr);
-    m_utf8.assign(len, '\0');
-    WideCharToMultiByte(CP_UTF8, 0, str.data(), str.size(), &m_utf8[0], len, nullptr, nullptr);
-  }
-  std::string_view utf8_str() const { return m_utf8; }
-  const char* c_str() const { return m_utf8.c_str(); }
-};
-class SystemStringConv {
-  std::wstring m_sys;
-
-public:
-  explicit SystemStringConv(std::string_view str) {
-    int len = MultiByteToWideChar(CP_UTF8, 0, str.data(), str.size(), nullptr, 0);
-    m_sys.assign(len, L'\0');
-    MultiByteToWideChar(CP_UTF8, 0, str.data(), str.size(), &m_sys[0], len);
-  }
-  SystemStringView sys_str() const { return m_sys; }
-  const SystemChar* c_str() const { return m_sys.c_str(); }
-};
-#ifndef _SYS_STR
-#define _SYS_STR(val) L##val
-#endif
-#else
-typedef char SystemChar;
-typedef std::string SystemString;
-typedef std::string_view SystemStringView;
-static inline void ToLower(SystemString& str) { std::transform(str.begin(), str.end(), str.begin(), tolower); }
-static inline void ToUpper(SystemString& str) { std::transform(str.begin(), str.end(), str.begin(), toupper); }
-static inline size_t StrLen(const SystemChar* str) { return strlen(str); }
-class SystemUTF8Conv {
-  std::string_view m_utf8;
-
-public:
-  explicit SystemUTF8Conv(SystemStringView str) : m_utf8(str) {}
-  std::string_view utf8_str() const { return m_utf8; }
-  const char* c_str() const { return m_utf8.data(); }
-};
-class SystemStringConv {
-  SystemStringView m_sys;
-
-public:
-  explicit SystemStringConv(std::string_view str) : m_sys(str) {}
-  SystemStringView sys_str() const { return m_sys; }
-  const SystemChar* c_str() const { return m_sys.data(); }
-};
-#ifndef _SYS_STR
-#define _SYS_STR(val) val
-#endif
-#endif
-
-static inline void Unlink(const SystemChar* file) {
-#if NOD_UCS2
-  _wunlink(file);
-#else
-  unlink(file);
-#endif
-}
-
-static inline int StrCmp(const SystemChar* str1, const SystemChar* str2) {
-#if NOD_UCS2
-  return wcscmp(str1, str2);
-#else
-  return strcmp(str1, str2);
-#endif
-}
-
-static inline int StrCaseCmp(const SystemChar* str1, const SystemChar* str2) {
-#if NOD_UCS2
-  return _wcsicmp(str1, str2);
-#else
-  return strcasecmp(str1, str2);
-#endif
-}
-
-#undef bswap16
-#undef bswap32
-#undef bswap64
-/* Type-sensitive byte swappers */
-template <typename T>
-static inline T bswap16(T val) {
-#if __GNUC__
-  return __builtin_bswap16(val);
-#elif _WIN32
-  return _byteswap_ushort(val);
-#else
-  return (val = (val << 8) | ((val >> 8) & 0xFF));
-#endif
-}
-
-template <typename T>
-static inline T bswap32(T val) {
-#if __GNUC__
-  return __builtin_bswap32(val);
-#elif _WIN32
-  return _byteswap_ulong(val);
-#else
-  val = (val & 0x0000FFFF) << 16 | (val & 0xFFFF0000) >> 16;
-  val = (val & 0x00FF00FF) << 8 | (val & 0xFF00FF00) >> 8;
-  return val;
-#endif
-}
-
-template <typename T>
-static inline T bswap64(T val) {
-#if __GNUC__
-  return __builtin_bswap64(val);
-#elif _WIN32
-  return _byteswap_uint64(val);
-#else
-  return ((val & 0xFF00000000000000ULL) >> 56) | ((val & 0x00FF000000000000ULL) >> 40) |
-         ((val & 0x0000FF0000000000ULL) >> 24) | ((val & 0x000000FF00000000ULL) >> 8) |
-         ((val & 0x00000000FF000000ULL) << 8) | ((val & 0x0000000000FF0000ULL) << 24) |
-         ((val & 0x000000000000FF00ULL) << 40) | ((val & 0x00000000000000FFULL) << 56);
-#endif
-}
-
-#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-static inline int16_t SBig(int16_t val) { return bswap16(val); }
-static inline uint16_t SBig(uint16_t val) { return bswap16(val); }
-static inline int32_t SBig(int32_t val) { return bswap32(val); }
-static inline uint32_t SBig(uint32_t val) { return bswap32(val); }
-static inline int64_t SBig(int64_t val) { return bswap64(val); }
-static inline uint64_t SBig(uint64_t val) { return bswap64(val); }
-
-static inline int16_t SLittle(int16_t val) { return val; }
-static inline uint16_t SLittle(uint16_t val) { return val; }
-static inline int32_t SLittle(int32_t val) { return val; }
-static inline uint32_t SLittle(uint32_t val) { return val; }
-static inline int64_t SLittle(int64_t val) { return val; }
-static inline uint64_t SLittle(uint64_t val) { return val; }
-#else
-static inline int16_t SLittle(int16_t val) { return bswap16(val); }
-static inline uint16_t SLittle(uint16_t val) { return bswap16(val); }
-static inline int32_t SLittle(int32_t val) { return bswap32(val); }
-static inline uint32_t SLittle(uint32_t val) { return bswap32(val); }
-static inline int64_t SLittle(int64_t val) { return bswap64(val); }
-static inline uint64_t SLittle(uint64_t val) { return bswap64(val); }
-
-static inline int16_t SBig(int16_t val) { return val; }
-static inline uint16_t SBig(uint16_t val) { return val; }
-static inline int32_t SBig(int32_t val) { return val; }
-static inline uint32_t SBig(uint32_t val) { return val; }
-static inline int64_t SBig(int64_t val) { return val; }
-static inline uint64_t SBig(uint64_t val) { return val; }
-#endif
-
-#ifndef ROUND_UP_32
-#define ROUND_UP_32(val) (((val) + 31) & ~31)
-#define ROUND_UP_16(val) (((val) + 15) & ~15)
-#endif
-
-enum class FileLockType { None = 0, Read, Write };
-static inline FILE* Fopen(const SystemChar* path, const SystemChar* mode, FileLockType lock = FileLockType::None) {
-#if NOD_UCS2
-  FILE* fp = _wfopen(path, mode);
-  if (!fp)
-    return nullptr;
-#else
-  FILE* fp = fopen(path, mode);
-  if (!fp)
-    return nullptr;
-#endif
-
-  if (lock != FileLockType::None) {
-#if _WIN32
-    OVERLAPPED ov = {};
-    LockFileEx((HANDLE)(uintptr_t)_fileno(fp), (lock == FileLockType::Write) ? LOCKFILE_EXCLUSIVE_LOCK : 0, 0, 0, 1,
-               &ov);
-#else
-    if (flock(fileno(fp), ((lock == FileLockType::Write) ? LOCK_EX : LOCK_SH) | LOCK_NB))
-      LogModule.report(logvisor::Error, FMT_STRING("flock {}: {}"), path, strerror(errno));
-#endif
-  }
-
-  return fp;
-}
-
-static inline int FSeek(FILE* fp, int64_t offset, int whence) {
-#if _WIN32
-  return _fseeki64(fp, offset, whence);
-#elif __APPLE__ || __FreeBSD__
-  return fseeko(fp, offset, whence);
-#else
-  return fseeko64(fp, offset, whence);
-#endif
-}
-
-static inline int64_t FTell(FILE* fp) {
-#if _WIN32
-  return _ftelli64(fp);
-#elif __APPLE__ || __FreeBSD__
-  return ftello(fp);
-#else
-  return ftello64(fp);
-#endif
-}
-
-static inline bool CheckFreeSpace(const SystemChar* path, size_t reqSz) {
-#if _WIN32
-  ULARGE_INTEGER freeBytes;
-  wchar_t buf[1024];
-  wchar_t* end;
-  DWORD ret = GetFullPathNameW(path, 1024, buf, &end);
-  if (!ret || ret > 1024) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("GetFullPathNameW {}")), path);
-    return false;
-  }
-  if (end)
-    end[0] = L'\0';
-  if (!GetDiskFreeSpaceExW(buf, &freeBytes, nullptr, nullptr)) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("GetDiskFreeSpaceExW {}: {}")), path, GetLastError());
-    return false;
-  }
-  return reqSz < freeBytes.QuadPart;
-#else
-  struct statvfs svfs;
-  if (statvfs(path, &svfs)) {
-    LogModule.report(logvisor::Error, FMT_STRING("statvfs {}: {}"), path, strerror(errno));
-    return false;
-  }
-  return reqSz < svfs.f_frsize * svfs.f_bavail;
-#endif
-}
-
-} // namespace nod

include/nod/nod.hpp

@@ -2,9 +2,7 @@
 
 #include <functional>
 #include <memory>
-#include <string>
-
-#include "nod/Util.hpp"
+#include <string_view>
 
 namespace nod {
 
@@ -15,7 +13,7 @@ struct ExtractionContext final {
   std::function<void(std::string_view, float)> progressCB;
 };
 
-std::unique_ptr<DiscBase> OpenDiscFromImage(SystemStringView path);
-std::unique_ptr<DiscBase> OpenDiscFromImage(SystemStringView path, bool& isWii);
+std::unique_ptr<DiscBase> OpenDiscFromImage(std::string_view path);
+std::unique_ptr<DiscBase> OpenDiscFromImage(std::string_view path, bool& isWii);
 
 } // namespace nod

lib/CMakeLists.txt

@@ -9,34 +9,40 @@ add_library(nod
   DiscIONFS.cpp
   DiscIOWBFS.cpp
   DiscWii.cpp
+  IFileIO.cpp
   nod.cpp
+  OSUTF.c
+  Util.cpp
+  Util.hpp
 
   ../include/nod/aes.hpp
   ../include/nod/DirectoryEnumerator.hpp
   ../include/nod/DiscBase.hpp
   ../include/nod/DiscGCN.hpp
   ../include/nod/DiscWii.hpp
+  ../include/nod/Endian.hpp
   ../include/nod/IDiscIO.hpp
   ../include/nod/IFileIO.hpp
   ../include/nod/nod.hpp
+  ../include/nod/OSUTF.h
   ../include/nod/sha1.h
-  ../include/nod/Util.hpp
 )
 
 target_include_directories(nod PUBLIC
   $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../include>
 )
 
-target_link_libraries(nod PUBLIC logvisor)
+target_link_libraries(nod PUBLIC $<BUILD_INTERFACE:spdlog::spdlog>)
 
 if(WIN32)
   target_sources(nod PRIVATE FileIOWin32.cpp)
+  target_link_libraries(nod PRIVATE nowide::nowide)
 else()
   target_compile_options(nod PRIVATE -Wno-multichar)
   target_sources(nod PRIVATE FileIOFILE.cpp)
 endif()
 
-if(NOT MSVC AND NOT NX)
+if(NOT MSVC AND ${CMAKE_SYSTEM_PROCESSOR} STREQUAL x86_64)
   set_source_files_properties(aes.cpp PROPERTIES COMPILE_FLAGS -maes)
 endif()
 

lib/DirectoryEnumerator.cpp

@@ -1,10 +1,14 @@
 #include "nod/DirectoryEnumerator.hpp"
+#include "Util.hpp"
 
 #ifdef _WIN32
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
 #include <windows.h>
 #else
-#include <sys/stat.h>
 #include <dirent.h>
+#include <sys/stat.h>
 #endif
 
 #include <cstring>
@@ -12,124 +16,153 @@
 
 namespace nod {
 
-DirectoryEnumerator::DirectoryEnumerator(SystemStringView path, Mode mode, bool sizeSort, bool reverse, bool noHidden) {
+DirectoryEnumerator::DirectoryEnumerator(std::string_view path, Mode mode, bool sizeSort, bool reverse, bool noHidden) {
   Sstat theStat;
-  if (Stat(path.data(), &theStat) || !S_ISDIR(theStat.st_mode))
+  if (Stat(path.data(), &theStat) || !S_ISDIR(theStat.st_mode)) {
     return;
+  }
 
 #if _WIN32
-  SystemString wc(path);
-  wc += _SYS_STR("/*");
+  std::wstring wc = nowide::widen(path);
+  wc += L"/*";
   WIN32_FIND_DATAW d;
   HANDLE dir = FindFirstFileW(wc.c_str(), &d);
-  if (dir == INVALID_HANDLE_VALUE)
+  if (dir == INVALID_HANDLE_VALUE) {
     return;
+  }
   switch (mode) {
   case Mode::Native:
     do {
-      if (!wcscmp(d.cFileName, _SYS_STR(".")) || !wcscmp(d.cFileName, _SYS_STR("..")))
+      if (!wcscmp(d.cFileName, L".") || !wcscmp(d.cFileName, L"..")) {
         continue;
-      if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
+      }
+      if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0)) {
         continue;
-      SystemString fp(path);
-      fp += _SYS_STR('/');
-      fp += d.cFileName;
+      }
+      std::string fileName = nowide::narrow(d.cFileName);
+      std::string fp(path);
+      fp += '/';
+      fp += fileName;
       Sstat st;
       if (Stat(fp.c_str(), &st))
         continue;
 
       size_t sz = 0;
       bool isDir = false;
-      if (S_ISDIR(st.st_mode))
+      if (S_ISDIR(st.st_mode)) {
         isDir = true;
-      else if (S_ISREG(st.st_mode))
+      } else if (S_ISREG(st.st_mode)) {
         sz = st.st_size;
-      else
+      } else {
         continue;
+      }
 
-      m_entries.push_back(Entry(fp, d.cFileName, sz, isDir));
+      m_entries.emplace_back(fp, fileName, sz, isDir);
     } while (FindNextFileW(dir, &d));
     break;
   case Mode::DirsThenFilesSorted:
   case Mode::DirsSorted: {
-    std::map<SystemString, Entry, CaseInsensitiveCompare> sort;
+    std::map<std::string, Entry, CaseInsensitiveCompare> sort;
     do {
-      if (!wcscmp(d.cFileName, _SYS_STR(".")) || !wcscmp(d.cFileName, _SYS_STR("..")))
+      if (!wcscmp(d.cFileName, L".") || !wcscmp(d.cFileName, L"..")) {
         continue;
-      if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
+      }
+      if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0)) {
         continue;
-      SystemString fp(path);
-      fp += _SYS_STR('/');
-      fp += d.cFileName;
+      }
+      std::string fileName = nowide::narrow(d.cFileName);
+      std::string fp(path);
+      fp += '/';
+      fp += fileName;
       Sstat st;
-      if (Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode))
+      if (Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode)) {
         continue;
-      sort.emplace(std::make_pair(d.cFileName, Entry(fp, d.cFileName, 0, true)));
+      }
+      sort.emplace(fileName, Entry{fp, fileName, 0, true});
     } while (FindNextFileW(dir, &d));
 
     m_entries.reserve(sort.size());
-    if (reverse)
-      for (auto it = sort.crbegin(); it != sort.crend(); ++it)
-        m_entries.push_back(std::move(it->second));
-    else
-      for (auto& e : sort)
-        m_entries.push_back(std::move(e.second));
+    if (reverse) {
+      for (auto it = sort.crbegin(); it != sort.crend(); ++it) {
+        m_entries.emplace_back(std::move(it->second));
+      }
+    } else {
+      for (auto& e : sort) {
+        m_entries.emplace_back(std::move(e.second));
+      }
+    }
 
-    if (mode == Mode::DirsSorted)
+    if (mode == Mode::DirsSorted) {
       break;
+    }
     FindClose(dir);
     dir = FindFirstFileW(wc.c_str(), &d);
   }
   case Mode::FilesSorted: {
-    if (mode == Mode::FilesSorted)
+    if (mode == Mode::FilesSorted) {
       m_entries.clear();
+    }
 
     if (sizeSort) {
       std::multimap<size_t, Entry> sort;
       do {
-        if (!wcscmp(d.cFileName, _SYS_STR(".")) || !wcscmp(d.cFileName, _SYS_STR("..")))
+        if (!wcscmp(d.cFileName, L".") || !wcscmp(d.cFileName, L"..")) {
           continue;
-        if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
+        }
+        if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0)) {
           continue;
-        SystemString fp(path);
-        fp += _SYS_STR('/');
-        fp += d.cFileName;
+        }
+        std::string fileName = nowide::narrow(d.cFileName);
+        std::string fp(path);
+        fp += '/';
+        fp += fileName;
         Sstat st;
-        if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
+        if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode)) {
           continue;
-        sort.emplace(std::make_pair(st.st_size, Entry(fp, d.cFileName, st.st_size, false)));
+        }
+        sort.emplace(st.st_size, Entry{fp, fileName, static_cast<size_t>(st.st_size), false});
       } while (FindNextFileW(dir, &d));
 
-      m_entries.reserve(sort.size());
-      if (reverse)
-        for (auto it = sort.crbegin(); it != sort.crend(); ++it)
-          m_entries.push_back(std::move(it->second));
-      else
-        for (auto& e : sort)
-          m_entries.push_back(std::move(e.second));
+      m_entries.reserve(m_entries.size() + sort.size());
+      if (reverse) {
+        for (auto it = sort.crbegin(); it != sort.crend(); ++it) {
+          m_entries.emplace_back(std::move(it->second));
+        }
+      } else {
+        for (auto& e : sort) {
+          m_entries.emplace_back(std::move(e.second));
+        }
+      }
     } else {
-      std::map<SystemString, Entry, CaseInsensitiveCompare> sort;
+      std::map<std::string, Entry, CaseInsensitiveCompare> sort;
       do {
-        if (!wcscmp(d.cFileName, _SYS_STR(".")) || !wcscmp(d.cFileName, _SYS_STR("..")))
+        if (!wcscmp(d.cFileName, L".") || !wcscmp(d.cFileName, L"..")) {
           continue;
-        if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
+        }
+        if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0)) {
           continue;
-        SystemString fp(path);
-        fp += _SYS_STR('/');
-        fp += d.cFileName;
+        }
+        std::string fileName = nowide::narrow(d.cFileName);
+        std::string fp(path);
+        fp += '/';
+        fp += fileName;
         Sstat st;
-        if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
+        if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode)) {
           continue;
-        sort.emplace(std::make_pair(d.cFileName, Entry(fp, d.cFileName, st.st_size, false)));
+        }
+        sort.emplace(fileName, Entry{fp, fileName, static_cast<size_t>(st.st_size), false});
       } while (FindNextFileW(dir, &d));
 
-      m_entries.reserve(sort.size());
-      if (reverse)
-        for (auto it = sort.crbegin(); it != sort.crend(); ++it)
-          m_entries.push_back(std::move(it->second));
-      else
-        for (auto& e : sort)
-          m_entries.push_back(std::move(e.second));
+      m_entries.reserve(m_entries.size() + sort.size());
+      if (reverse) {
+        for (auto it = sort.crbegin(); it != sort.crend(); ++it) {
+          m_entries.emplace_back(std::move(it->second));
+        }
+      } else {
+        for (auto& e : sort) {
+          m_entries.emplace_back(std::move(e.second));
+        }
+      }
     }
 
     break;
@@ -150,7 +183,7 @@ DirectoryEnumerator::DirectoryEnumerator(SystemStringView path, Mode mode, bool
         continue;
       if (noHidden && d->d_name[0] == '.')
         continue;
-      SystemString fp(path);
+      std::string fp(path);
       fp += '/';
       fp += d->d_name;
       Sstat st;
@@ -171,13 +204,13 @@ DirectoryEnumerator::DirectoryEnumerator(SystemStringView path, Mode mode, bool
     break;
   case Mode::DirsThenFilesSorted:
   case Mode::DirsSorted: {
-    std::map<SystemString, Entry, CaseInsensitiveCompare> sort;
+    std::map<std::string, Entry, CaseInsensitiveCompare> sort;
     while ((d = readdir(dir))) {
       if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
         continue;
       if (noHidden && d->d_name[0] == '.')
         continue;
-      SystemString fp(path);
+      std::string fp(path);
       fp += '/';
       fp += d->d_name;
       Sstat st;
@@ -210,7 +243,7 @@ DirectoryEnumerator::DirectoryEnumerator(SystemStringView path, Mode mode, bool
           continue;
         if (noHidden && d->d_name[0] == '.')
           continue;
-        SystemString fp(path);
+        std::string fp(path);
         fp += '/';
         fp += d->d_name;
         Sstat st;
@@ -227,13 +260,13 @@ DirectoryEnumerator::DirectoryEnumerator(SystemStringView path, Mode mode, bool
         for (auto& e : sort)
           m_entries.push_back(std::move(e.second));
     } else {
-      std::map<SystemString, Entry, CaseInsensitiveCompare> sort;
+      std::map<std::string, Entry, CaseInsensitiveCompare> sort;
       while ((d = readdir(dir))) {
         if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
           continue;
         if (noHidden && d->d_name[0] == '.')
           continue;
-        SystemString fp(path);
+        std::string fp(path);
         fp += '/';
         fp += d->d_name;
         Sstat st;

lib/DiscBase.cpp

@@ -9,13 +9,13 @@
 #include "nod/DirectoryEnumerator.hpp"
 #include "nod/IFileIO.hpp"
 #include "nod/nod.hpp"
-#include "nod/Util.hpp"
+#include "Util.hpp"
 
 #ifndef _WIN32
 #include <unistd.h>
 #else
 
-#include <logvisor/logvisor.hpp>
+#include <spdlog/spdlog.h>
 
 static void* memmem(const void* haystack, size_t hlen, const void* needle, size_t nlen) {
   int needle_first;
@@ -40,17 +40,18 @@ static void* memmem(const void* haystack, size_t hlen, const void* needle, size_
 #endif
 
 #include <algorithm>
+#include <spdlog/spdlog.h>
 
 namespace nod {
 
-const SystemChar* getKindString(PartitionKind kind) {
+const char* getKindString(PartitionKind kind) {
   switch (kind) {
   case PartitionKind::Data:
-    return _SYS_STR("DATA");
+    return "DATA";
   case PartitionKind::Update:
-    return _SYS_STR("UPDATE");
+    return "UPDATE";
   case PartitionKind::Channel:
-    return _SYS_STR("CHANNEL");
+    return "CHANNEL";
   default:
     return nullptr;
   }
@@ -109,7 +110,7 @@ Node::Node(const IPartition& parent, const FSTNode& node, std::string_view name)
 
 std::unique_ptr<IPartReadStream> Node::beginReadStream(uint64_t offset) const {
   if (m_kind != Kind::File) {
-    LogModule.report(logvisor::Error, FMT_STRING("unable to stream a non-file {}"), m_name);
+    spdlog::error("unable to stream a non-file {}", m_name);
     return std::unique_ptr<IPartReadStream>();
   }
   return m_parent.beginReadStream(m_discOffset + offset);
@@ -117,7 +118,7 @@ std::unique_ptr<IPartReadStream> Node::beginReadStream(uint64_t offset) const {
 
 std::unique_ptr<uint8_t[]> Node::getBuf() const {
   if (m_kind != Kind::File) {
-    LogModule.report(logvisor::Error, FMT_STRING("unable to buffer a non-file {}"), m_name);
+    spdlog::error("unable to buffer a non-file {}", m_name);
     return nullptr;
   }
 
@@ -126,16 +127,16 @@ std::unique_ptr<uint8_t[]> Node::getBuf() const {
   return buf;
 }
 
-bool Node::extractToDirectory(SystemStringView basePath, const ExtractionContext& ctx) const {
-  SystemStringConv nameView(getName());
-  SystemString path = SystemString(basePath) + _SYS_STR('/') + nameView.sys_str().data();
+bool Node::extractToDirectory(std::string_view basePath, const ExtractionContext& ctx) const {
+  SJISToUTF8 nameView(getName());
+  std::string path = std::string(basePath) + '/' + nameView.str().data();
 
   if (m_kind == Kind::Directory) {
     ++m_parent.m_curNodeIdx;
     if (ctx.progressCB && !getName().empty())
-      ctx.progressCB(getName(), m_parent.m_curNodeIdx / float(m_parent.getNodeCount()));
+      ctx.progressCB(nameView.str(), m_parent.m_curNodeIdx / float(m_parent.getNodeCount()));
     if (Mkdir(path.c_str(), 0755) && errno != EEXIST) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to mkdir '{}'")), path);
+      spdlog::error("unable to mkdir '{}'", path);
       return false;
     }
     for (Node& subnode : *this)
@@ -144,7 +145,7 @@ bool Node::extractToDirectory(SystemStringView basePath, const ExtractionContext
   } else if (m_kind == Kind::File) {
     Sstat theStat;
     if (ctx.progressCB)
-      ctx.progressCB(getName(), m_parent.m_curNodeIdx / float(m_parent.getNodeCount()));
+      ctx.progressCB(nameView.str(), m_parent.m_curNodeIdx / float(m_parent.getNodeCount()));
 
     if (ctx.force || Stat(path.c_str(), &theStat)) {
       std::unique_ptr<IPartReadStream> rs = beginReadStream();
@@ -153,7 +154,7 @@ bool Node::extractToDirectory(SystemStringView basePath, const ExtractionContext
         return false;
       ws->copyFromDisc(*rs, m_discLength, [&](float prog) {
         if (ctx.progressCB)
-          ctx.progressCB(getName(), (m_parent.m_curNodeIdx + prog) / float(m_parent.getNodeCount()));
+          ctx.progressCB(nameView.str(), (m_parent.m_curNodeIdx + prog) / float(m_parent.getNodeCount()));
       });
     }
     ++m_parent.m_curNodeIdx;
@@ -161,17 +162,17 @@ bool Node::extractToDirectory(SystemStringView basePath, const ExtractionContext
   return true;
 }
 
-bool IPartition::extractToDirectory(SystemStringView path, const ExtractionContext& ctx) {
+bool IPartition::extractToDirectory(std::string_view path, const ExtractionContext& ctx) {
   m_curNodeIdx = 0;
   if (Mkdir(path.data(), 0755) && errno != EEXIST) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to mkdir '{}'")), path);
+    spdlog::error("unable to mkdir '{}'", path);
     return false;
   }
 
-  SystemString basePath = m_isWii ? SystemString(path) + _SYS_STR("/") + getKindString(m_kind) : SystemString(path);
+  std::string basePath = m_isWii ? std::string(path) + "/" + getKindString(m_kind) : std::string(path);
   if (m_isWii) {
     if (Mkdir(basePath.c_str(), 0755) && errno != EEXIST) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to mkdir '{}'")), basePath);
+      spdlog::error("unable to mkdir '{}'", basePath);
       return false;
     }
   }
@@ -188,25 +189,25 @@ bool IPartition::extractToDirectory(SystemStringView path, const ExtractionConte
     return false;
 
   /* Extract Filesystem */
-  SystemString fsPath = basePath + _SYS_STR("/files");
+  std::string fsPath = basePath + "/files";
   if (Mkdir(fsPath.c_str(), 0755) && errno != EEXIST) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to mkdir '{}'")), fsPath);
+    spdlog::error("unable to mkdir '{}'", fsPath);
     return false;
   }
 
   return m_nodes[0].extractToDirectory(fsPath, ctx);
 }
 
-bool IPartition::extractSysFiles(SystemStringView basePath, const ExtractionContext& ctx) const {
-  SystemString basePathStr(basePath);
-  if (Mkdir((basePathStr + _SYS_STR("/sys")).c_str(), 0755) && errno != EEXIST) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to mkdir '{}/sys'")), basePath);
+bool IPartition::extractSysFiles(std::string_view basePath, const ExtractionContext& ctx) const {
+  std::string basePathStr(basePath);
+  if (Mkdir((basePathStr + "/sys").c_str(), 0755) && errno != EEXIST) {
+    spdlog::error("unable to mkdir '{}/sys'", basePath);
     return false;
   }
 
   Sstat theStat;
   /* Extract Apploader */
-  SystemString apploaderPath = basePathStr + _SYS_STR("/sys/apploader.img");
+  std::string apploaderPath = basePathStr + "/sys/apploader.img";
   if (ctx.force || Stat(apploaderPath.c_str(), &theStat)) {
     if (ctx.progressCB)
       ctx.progressCB("apploader.bin", 0.f);
@@ -218,7 +219,7 @@ bool IPartition::extractSysFiles(SystemStringView basePath, const ExtractionCont
   }
 
   /* Extract Dol */
-  SystemString dolPath = basePathStr + _SYS_STR("/sys/main.dol");
+  std::string dolPath = basePathStr + "/sys/main.dol";
   if (ctx.force || Stat(dolPath.c_str(), &theStat)) {
     if (ctx.progressCB)
       ctx.progressCB("main.dol", 0.f);
@@ -230,7 +231,7 @@ bool IPartition::extractSysFiles(SystemStringView basePath, const ExtractionCont
   }
 
   /* Extract Boot info */
-  SystemString bootPath = basePathStr + _SYS_STR("/sys/boot.bin");
+  std::string bootPath = basePathStr + "/sys/boot.bin";
   if (ctx.force || Stat(bootPath.c_str(), &theStat)) {
     if (ctx.progressCB)
       ctx.progressCB("boot.bin", 0.f);
@@ -241,7 +242,7 @@ bool IPartition::extractSysFiles(SystemStringView basePath, const ExtractionCont
   }
 
   /* Extract BI2 info */
-  SystemString bi2Path = basePathStr + _SYS_STR("/sys/bi2.bin");
+  std::string bi2Path = basePathStr + "/sys/bi2.bin";
   if (ctx.force || Stat(bi2Path.c_str(), &theStat)) {
     if (ctx.progressCB)
       ctx.progressCB("bi2.bin", 0.f);
@@ -255,26 +256,26 @@ bool IPartition::extractSysFiles(SystemStringView basePath, const ExtractionCont
   return true;
 }
 
-static bool IsSystemFile(SystemStringView name, bool& isDol) {
+static bool IsSystemFile(std::string_view name, bool& isDol) {
   isDol = false;
   if (name.size() < 4)
     return false;
 
-  if (!StrCaseCmp((&*(name.cend() - 4)), _SYS_STR(".dol"))) {
+  if (!StrCaseCmp((&*(name.cend() - 4)), ".dol")) {
     isDol = true;
     return true;
   }
-  if (!StrCaseCmp((&*(name.cend() - 4)), _SYS_STR(".rel")))
+  if (!StrCaseCmp((&*(name.cend() - 4)), ".rel"))
     return true;
-  if (!StrCaseCmp((&*(name.cend() - 4)), _SYS_STR(".rso")))
+  if (!StrCaseCmp((&*(name.cend() - 4)), ".rso"))
     return true;
-  if (!StrCaseCmp((&*(name.cend() - 4)), _SYS_STR(".sel")))
+  if (!StrCaseCmp((&*(name.cend() - 4)), ".sel"))
     return true;
-  if (!StrCaseCmp((&*(name.cend() - 4)), _SYS_STR(".bnr")))
+  if (!StrCaseCmp((&*(name.cend() - 4)), ".bnr"))
     return true;
-  if (!StrCaseCmp((&*(name.cend() - 4)), _SYS_STR(".elf")))
+  if (!StrCaseCmp((&*(name.cend() - 4)), ".elf"))
     return true;
-  if (!StrCaseCmp((&*(name.cend() - 4)), _SYS_STR(".wad")))
+  if (!StrCaseCmp((&*(name.cend() - 4)), ".wad"))
     return true;
 
   return false;
@@ -301,7 +302,7 @@ static size_t PatchDOL(IFileIO::IReadStream& in, IPartWriteStream& out, size_t s
   return out.write(buf.get(), sz);
 }
 
-void DiscBuilderBase::PartitionBuilderBase::recursiveBuildNodesPre(SystemStringView filesIn) {
+void DiscBuilderBase::PartitionBuilderBase::recursiveBuildNodesPre(std::string_view filesIn) {
   DirectoryEnumerator dEnum(filesIn, DirectoryEnumerator::Mode::DirsThenFilesSorted, false, false, true);
   for (const DirectoryEnumerator::Entry& e : dEnum) {
     if (e.m_isDir)
@@ -312,7 +313,7 @@ void DiscBuilderBase::PartitionBuilderBase::recursiveBuildNodesPre(SystemStringV
 }
 
 bool DiscBuilderBase::PartitionBuilderBase::recursiveBuildNodes(IPartWriteStream& ws, bool system,
-                                                                SystemStringView filesIn) {
+                                                                std::string_view filesIn) {
   DirectoryEnumerator dEnum(filesIn, DirectoryEnumerator::Mode::DirsThenFilesSorted, false, false, true);
   for (const DirectoryEnumerator::Entry& e : dEnum) {
     if (e.m_isDir) {
@@ -337,7 +338,7 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveBuildNodes(IPartWriteStream
         bool patched;
         xferSz = PatchDOL(*rs, ws, e.m_fileSz, patched);
         m_parent.m_progressCB(m_parent.getProgressFactor(),
-                              e.m_name + (patched ? _SYS_STR(" [PATCHED]") : _SYS_STR("")), xferSz);
+                              e.m_name + (patched ? " [PATCHED]" : ""), xferSz);
         ++m_parent.m_progressIdx;
       } else {
         char buf[0x8000];
@@ -359,7 +360,7 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveBuildNodes(IPartWriteStream
   return true;
 }
 
-bool DiscBuilderBase::PartitionBuilderBase::recursiveBuildFST(SystemStringView filesIn,
+bool DiscBuilderBase::PartitionBuilderBase::recursiveBuildFST(std::string_view filesIn,
                                                               std::function<void(void)> incParents,
                                                               size_t parentDirIdx) {
   DirectoryEnumerator dEnum(filesIn, DirectoryEnumerator::Mode::DirsThenFilesSorted, false, false, true);
@@ -387,7 +388,7 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveBuildFST(SystemStringView f
   return true;
 }
 
-void DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodesPre(const Node* nodeIn, SystemStringView dirIn) {
+void DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodesPre(const Node* nodeIn, std::string_view dirIn) {
   /* Build map of existing nodes to write-through later */
   std::unordered_map<std::string, const Node*> fileNodes;
   std::unordered_map<std::string, const Node*> dirNodes;
@@ -406,10 +407,9 @@ void DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodesPre(const Node* n
   if (!dirIn.empty()) {
     DirectoryEnumerator dEnum(dirIn, DirectoryEnumerator::Mode::DirsThenFilesSorted, false, false, true);
     for (const DirectoryEnumerator::Entry& e : dEnum) {
-      SystemUTF8Conv nameView(e.m_name);
-
+      UTF8ToSJIS nameView(e.m_name);
       if (e.m_isDir) {
-        auto search = dirNodes.find(nameView.utf8_str().data());
+        auto search = dirNodes.find(nameView.str());
         if (search != dirNodes.cend()) {
           recursiveMergeNodesPre(search->second, e.m_path.c_str());
           dirNodes.erase(search);
@@ -417,7 +417,7 @@ void DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodesPre(const Node* n
           recursiveMergeNodesPre(nullptr, e.m_path.c_str());
         }
       } else {
-        fileNodes.erase(nameView.utf8_str().data());
+        fileNodes.erase(nameView.str());
         ++m_parent.m_progressTotal;
       }
     }
@@ -433,7 +433,7 @@ void DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodesPre(const Node* n
 }
 
 bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodes(IPartWriteStream& ws, bool system, const Node* nodeIn,
-                                                                SystemStringView dirIn, SystemStringView keyPath) {
+                                                                std::string_view dirIn, std::string_view keyPath) {
   /* Build map of existing nodes to write-through later */
   std::unordered_map<std::string, const Node*> fileNodes;
   std::unordered_map<std::string, const Node*> dirNodes;
@@ -452,11 +452,11 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodes(IPartWriteStream
   if (!dirIn.empty()) {
     DirectoryEnumerator dEnum(dirIn, DirectoryEnumerator::Mode::DirsThenFilesSorted, false, false, true);
     for (const DirectoryEnumerator::Entry& e : dEnum) {
-      SystemUTF8Conv nameView(e.m_name);
-      SystemString chKeyPath = SystemString(keyPath) + _SYS_STR('/') + e.m_name;
+      UTF8ToSJIS nameView(e.m_name);
+      std::string chKeyPath = std::string(keyPath) + '/' + e.m_name;
 
       if (e.m_isDir) {
-        auto search = dirNodes.find(nameView.utf8_str().data());
+        auto search = dirNodes.find(nameView.str());
         if (search != dirNodes.cend()) {
           if (!recursiveMergeNodes(ws, system, search->second, e.m_path.c_str(), chKeyPath))
             return false;
@@ -471,7 +471,7 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodes(IPartWriteStream
         if (system ^ isSys)
           continue;
 
-        fileNodes.erase(nameView.utf8_str().data());
+        fileNodes.erase(nameView.str());
 
         size_t fileSz = ROUND_UP_32(e.m_fileSz);
         uint64_t fileOff = userAllocate(fileSz, ws);
@@ -486,7 +486,7 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodes(IPartWriteStream
           bool patched;
           xferSz = PatchDOL(*rs, ws, e.m_fileSz, patched);
           m_parent.m_progressCB(m_parent.getProgressFactor(),
-                                e.m_name + (patched ? _SYS_STR(" [PATCHED]") : _SYS_STR("")), xferSz);
+                                e.m_name + (patched ? " [PATCHED]" : ""), xferSz);
           ++m_parent.m_progressIdx;
         } else {
           char buf[0x8000];
@@ -508,8 +508,8 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodes(IPartWriteStream
 
   /* Write-through remaining dir nodes */
   for (const auto& p : dirNodes) {
-    SystemStringConv sysName(p.second->getName());
-    SystemString chKeyPath = SystemString(keyPath) + _SYS_STR('/') + sysName.c_str();
+    SJISToUTF8 sysName(p.second->getName());
+    std::string chKeyPath = std::string(keyPath) + '/' + sysName.str();
     if (!recursiveMergeNodes(ws, system, p.second, {}, chKeyPath))
       return false;
   }
@@ -517,11 +517,11 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodes(IPartWriteStream
   /* Write-through remaining file nodes */
   for (const auto& p : fileNodes) {
     const Node& ch = *p.second;
-    SystemStringConv sysName(ch.getName());
-    SystemString chKeyPath = SystemString(keyPath) + _SYS_STR('/') + sysName.c_str();
+    SJISToUTF8 sysName(ch.getName());
+    std::string chKeyPath = std::string(keyPath) + '/' + sysName.str();
 
     bool isDol;
-    bool isSys = IsSystemFile(sysName.sys_str(), isDol);
+    bool isSys = IsSystemFile(ch.getName(), isDol);
     if (system ^ isSys)
       continue;
 
@@ -541,7 +541,7 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodes(IPartWriteStream
       PatchDOL(dolBuf, xferSz, patched);
       ws.write(dolBuf.get(), xferSz);
       m_parent.m_progressCB(m_parent.getProgressFactor(),
-                            SystemString(sysName.sys_str()) + (patched ? _SYS_STR(" [PATCHED]") : _SYS_STR("")),
+                            std::string(ch.getName()) + (patched ? " [PATCHED]" : ""),
                             xferSz);
       ++m_parent.m_progressIdx;
     } else {
@@ -552,7 +552,7 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodes(IPartWriteStream
           break;
         ws.write(buf, rdSz);
         xferSz += rdSz;
-        m_parent.m_progressCB(m_parent.getProgressFactorMidFile(xferSz, ch.size()), sysName.sys_str(), xferSz);
+        m_parent.m_progressCB(m_parent.getProgressFactorMidFile(xferSz, ch.size()), ch.getName(), xferSz);
       }
       ++m_parent.m_progressIdx;
     }
@@ -563,9 +563,9 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeNodes(IPartWriteStream
   return true;
 }
 
-bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeFST(const Node* nodeIn, SystemStringView dirIn,
+bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeFST(const Node* nodeIn, std::string_view dirIn,
                                                               std::function<void(void)> incParents,
-                                                              SystemStringView keyPath) {
+                                                              size_t parentDirIdx, std::string_view keyPath) {
   /* Build map of existing nodes to write-through later */
   std::unordered_map<std::string, const Node*> fileNodes;
   std::unordered_map<std::string, const Node*> dirNodes;
@@ -584,23 +584,23 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeFST(const Node* nodeIn
   if (!dirIn.empty()) {
     DirectoryEnumerator dEnum(dirIn, DirectoryEnumerator::Mode::DirsThenFilesSorted, false, false, true);
     for (const DirectoryEnumerator::Entry& e : dEnum) {
-      SystemUTF8Conv nameView(e.m_name);
-      SystemString chKeyPath = SystemString(keyPath) + _SYS_STR('/') + e.m_name;
+      UTF8ToSJIS nameView(e.m_name);
+      std::string chKeyPath = std::string(keyPath) + '/' + e.m_name;
 
       if (e.m_isDir) {
         size_t dirNodeIdx = m_buildNodes.size();
-        m_buildNodes.emplace_back(true, m_buildNameOff, 0, dirNodeIdx + 1);
+        m_buildNodes.emplace_back(true, m_buildNameOff, parentDirIdx, dirNodeIdx + 1);
         addBuildName(e.m_name);
         incParents();
 
-        auto search = dirNodes.find(nameView.utf8_str().data());
+        auto search = dirNodes.find(nameView.str());
         if (search != dirNodes.cend()) {
           if (!recursiveMergeFST(search->second, e.m_path.c_str(),
                                  [&]() {
                                    m_buildNodes[dirNodeIdx].incrementLength();
                                    incParents();
                                  },
-                                 chKeyPath))
+                                 dirNodeIdx, chKeyPath))
             return false;
           dirNodes.erase(search);
         } else {
@@ -609,11 +609,11 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeFST(const Node* nodeIn
                                    m_buildNodes[dirNodeIdx].incrementLength();
                                    incParents();
                                  },
-                                 chKeyPath))
+                                 dirNodeIdx, chKeyPath))
             return false;
         }
       } else {
-        fileNodes.erase(nameView.utf8_str().data());
+        fileNodes.erase(nameView.str());
         std::pair<uint64_t, uint64_t> fileOffSz = m_fileOffsetsSizes.at(chKeyPath);
         m_buildNodes.emplace_back(false, m_buildNameOff, packOffset(fileOffSz.first), fileOffSz.second);
         addBuildName(e.m_name);
@@ -624,12 +624,12 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeFST(const Node* nodeIn
 
   /* Write-through remaining dir nodes */
   for (const auto& p : dirNodes) {
-    SystemStringConv sysName(p.second->getName());
-    SystemString chKeyPath = SystemString(keyPath) + _SYS_STR('/') + sysName.sys_str().data();
+    SJISToUTF8 sysName(p.second->getName());
+    std::string chKeyPath = std::string(keyPath) + '/' + sysName.str();
 
     size_t dirNodeIdx = m_buildNodes.size();
-    m_buildNodes.emplace_back(true, m_buildNameOff, 0, dirNodeIdx + 1);
-    addBuildName(sysName.sys_str());
+    m_buildNodes.emplace_back(true, m_buildNameOff, parentDirIdx, dirNodeIdx + 1);
+    addBuildName(sysName.str());
     incParents();
 
     if (!recursiveMergeFST(p.second, {},
@@ -637,19 +637,19 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeFST(const Node* nodeIn
                              m_buildNodes[dirNodeIdx].incrementLength();
                              incParents();
                            },
-                           chKeyPath))
+                           dirNodeIdx, chKeyPath))
       return false;
   }
 
   /* Write-through remaining file nodes */
   for (const auto& p : fileNodes) {
     const Node& ch = *p.second;
-    SystemStringConv sysName(ch.getName());
-    SystemString chKeyPath = SystemString(keyPath) + _SYS_STR('/') + sysName.sys_str().data();
+    SJISToUTF8 sysName(ch.getName());
+    std::string chKeyPath = std::string(keyPath) + '/' + sysName.str();
 
     std::pair<uint64_t, uint64_t> fileOffSz = m_fileOffsetsSizes.at(chKeyPath);
     m_buildNodes.emplace_back(false, m_buildNameOff, packOffset(fileOffSz.first), fileOffSz.second);
-    addBuildName(sysName.sys_str());
+    addBuildName(ch.getName());
     incParents();
   }
 
@@ -657,7 +657,7 @@ bool DiscBuilderBase::PartitionBuilderBase::recursiveMergeFST(const Node* nodeIn
 }
 
 bool DiscBuilderBase::PartitionBuilderBase::RecursiveCalculateTotalSize(uint64_t& totalSz, const Node* nodeIn,
-                                                                        SystemStringView dirIn) {
+                                                                        std::string_view dirIn) {
   /* Build map of existing nodes to write-through later */
   std::unordered_map<std::string, const Node*> fileNodes;
   std::unordered_map<std::string, const Node*> dirNodes;
@@ -676,20 +676,20 @@ bool DiscBuilderBase::PartitionBuilderBase::RecursiveCalculateTotalSize(uint64_t
   if (!dirIn.empty()) {
     DirectoryEnumerator dEnum(dirIn, DirectoryEnumerator::Mode::DirsThenFilesSorted, false, false, true);
     for (const DirectoryEnumerator::Entry& e : dEnum) {
-      SystemUTF8Conv nameView(e.m_name);
+      UTF8ToSJIS nameView(e.m_name);
 
       if (e.m_isDir) {
-        auto search = dirNodes.find(nameView.utf8_str().data());
+        auto search = dirNodes.find(nameView.str());
         if (search != dirNodes.cend()) {
-          if (!RecursiveCalculateTotalSize(totalSz, search->second, e.m_path.c_str()))
+          if (!RecursiveCalculateTotalSize(totalSz, search->second, e.m_path))
             return false;
           dirNodes.erase(search);
         } else {
-          if (!RecursiveCalculateTotalSize(totalSz, nullptr, e.m_path.c_str()))
+          if (!RecursiveCalculateTotalSize(totalSz, nullptr, e.m_path))
             return false;
         }
       } else {
-        fileNodes.erase(nameView.utf8_str().data());
+        fileNodes.erase(nameView.str());
         totalSz += ROUND_UP_32(e.m_fileSz);
       }
     }
@@ -710,34 +710,34 @@ bool DiscBuilderBase::PartitionBuilderBase::RecursiveCalculateTotalSize(uint64_t
   return true;
 }
 
-bool DiscBuilderBase::PartitionBuilderBase::buildFromDirectory(IPartWriteStream& ws, SystemStringView dirIn) {
+bool DiscBuilderBase::PartitionBuilderBase::buildFromDirectory(IPartWriteStream& ws, std::string_view dirIn) {
   if (dirIn.empty()) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("all arguments must be supplied to buildFromDirectory()")));
+    spdlog::error("all arguments must be supplied to buildFromDirectory()");
     return false;
   }
 
-  SystemString dirStr(dirIn);
-  SystemString basePath = m_isWii ? dirStr + _SYS_STR("/") + getKindString(m_kind) : dirStr;
-  SystemString dolIn = basePath + _SYS_STR("/sys/main.dol");
-  SystemString filesIn = basePath + _SYS_STR("/files");
+  std::string dirStr(dirIn);
+  std::string basePath = m_isWii ? dirStr + "/" + getKindString(m_kind) : dirStr;
+  std::string dolIn = basePath + "/sys/main.dol";
+  std::string filesIn = basePath + "/files";
 
   /* 1st pass - Tally up total progress steps */
   m_parent.m_progressTotal += 2; /* Prep and DOL */
   recursiveBuildNodesPre(filesIn.c_str());
 
   /* Clear file */
-  m_parent.m_progressCB(m_parent.getProgressFactor(), _SYS_STR("Preparing output image"), -1);
+  m_parent.m_progressCB(m_parent.getProgressFactor(), "Preparing output image", -1);
   ++m_parent.m_progressIdx;
 
   /* Add root node */
   m_buildNodes.emplace_back(true, m_buildNameOff, 0, 1);
-  addBuildName(_SYS_STR("<root>"));
+  addBuildName("<root>");
 
   /* Write Boot DOL first (first thing seeked to after Apploader) */
   {
     Sstat dolStat;
     if (Stat(dolIn.c_str(), &dolStat)) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {}")), dolIn);
+      spdlog::error("unable to stat {}", dolIn);
       return false;
     }
     size_t fileSz = ROUND_UP_32(dolStat.st_size);
@@ -751,7 +751,7 @@ bool DiscBuilderBase::PartitionBuilderBase::buildFromDirectory(IPartWriteStream&
       return false;
     bool patched;
     size_t xferSz = PatchDOL(*rs, ws, dolStat.st_size, patched);
-    m_parent.m_progressCB(m_parent.getProgressFactor(), dolIn + (patched ? _SYS_STR(" [PATCHED]") : _SYS_STR("")),
+    m_parent.m_progressCB(m_parent.getProgressFactor(), dolIn + (patched ? " [PATCHED]" : ""),
                           xferSz);
     ++m_parent.m_progressIdx;
     for (size_t i = 0; i < fileSz - xferSz; ++i)
@@ -769,46 +769,46 @@ bool DiscBuilderBase::PartitionBuilderBase::buildFromDirectory(IPartWriteStream&
   return true;
 }
 
-std::optional<uint64_t> DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeBuild(SystemStringView dirIn,
+std::optional<uint64_t> DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeBuild(std::string_view dirIn,
                                                                                        PartitionKind kind, bool isWii) {
-  SystemString dirStr(dirIn);
-  SystemString basePath = isWii ? dirStr + _SYS_STR("/") + getKindString(kind) : dirStr;
-  SystemString dolIn = basePath + _SYS_STR("/sys/main.dol");
-  SystemString filesIn = basePath + _SYS_STR("/files");
+  std::string dirStr(dirIn);
+  std::string basePath = isWii ? dirStr + "/" + getKindString(kind) : dirStr;
+  std::string dolIn = basePath + "/sys/main.dol";
+  std::string filesIn = basePath + "/files";
 
   Sstat dolStat;
   if (Stat(dolIn.c_str(), &dolStat)) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {}")), dolIn);
+    spdlog::error("unable to stat {}", dolIn);
     return std::nullopt;
   }
   uint64_t totalSz = ROUND_UP_32(dolStat.st_size);
-  if (!RecursiveCalculateTotalSize(totalSz, nullptr, filesIn.c_str()))
+  if (!RecursiveCalculateTotalSize(totalSz, nullptr, filesIn))
     return std::nullopt;
   return totalSz;
 }
 
 bool DiscBuilderBase::PartitionBuilderBase::mergeFromDirectory(IPartWriteStream& ws, const IPartition* partIn,
-                                                               SystemStringView dirIn) {
+                                                               std::string_view dirIn) {
   if (dirIn.empty()) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("all arguments must be supplied to mergeFromDirectory()")));
+    spdlog::error("all arguments must be supplied to mergeFromDirectory()");
     return false;
   }
 
-  SystemString dirStr(dirIn);
-  SystemString basePath = m_isWii ? dirStr + _SYS_STR("/") + getKindString(m_kind) : dirStr;
-  SystemString filesIn = basePath + _SYS_STR("/files");
+  std::string dirStr(dirIn);
+  std::string basePath = m_isWii ? dirStr + "/" + getKindString(m_kind) : dirStr;
+  std::string filesIn = basePath + "/files";
 
   /* 1st pass - Tally up total progress steps */
   m_parent.m_progressTotal += 2; /* Prep and DOL */
   recursiveMergeNodesPre(&partIn->getFSTRoot(), filesIn.c_str());
 
   /* Clear file */
-  m_parent.m_progressCB(m_parent.getProgressFactor(), _SYS_STR("Preparing output image"), -1);
+  m_parent.m_progressCB(m_parent.getProgressFactor(), "Preparing output image", -1);
   ++m_parent.m_progressIdx;
 
   /* Add root node */
   m_buildNodes.emplace_back(true, m_buildNameOff, 0, 1);
-  addBuildName(_SYS_STR("<root>"));
+  addBuildName("<root>");
 
   /* Write Boot DOL first (first thing seeked to after Apploader) */
   {
@@ -824,7 +824,7 @@ bool DiscBuilderBase::PartitionBuilderBase::mergeFromDirectory(IPartWriteStream&
     PatchDOL(dolBuf, xferSz, patched);
     ws.write(dolBuf.get(), xferSz);
     m_parent.m_progressCB(m_parent.getProgressFactor(),
-                          SystemString(_SYS_STR("<boot-dol>")) + (patched ? _SYS_STR(" [PATCHED]") : _SYS_STR("")),
+                          std::string("<boot-dol>") + (patched ? " [PATCHED]" : ""),
                           xferSz);
     ++m_parent.m_progressIdx;
     for (size_t i = 0; i < fileSz - xferSz; ++i)
@@ -832,25 +832,25 @@ bool DiscBuilderBase::PartitionBuilderBase::mergeFromDirectory(IPartWriteStream&
   }
 
   /* Gather files in root directory */
-  SystemString keyPath;
+  std::string keyPath;
   if (!recursiveMergeNodes(ws, true, &partIn->getFSTRoot(), filesIn.c_str(), keyPath))
     return false;
   if (!recursiveMergeNodes(ws, false, &partIn->getFSTRoot(), filesIn.c_str(), keyPath))
     return false;
-  if (!recursiveMergeFST(&partIn->getFSTRoot(), filesIn.c_str(), [&]() { m_buildNodes[0].incrementLength(); }, keyPath))
+  if (!recursiveMergeFST(&partIn->getFSTRoot(), filesIn.c_str(), [&]() { m_buildNodes[0].incrementLength(); }, 0, keyPath))
     return false;
 
   return true;
 }
 
 std::optional<uint64_t> DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeMerge(const IPartition* partIn,
-                                                                                       SystemStringView dirIn) {
-  SystemString dirStr(dirIn);
-  SystemString basePath = partIn->isWii() ? dirStr + _SYS_STR("/") + getKindString(partIn->getKind()) : dirStr;
-  SystemString filesIn = basePath + _SYS_STR("/files");
+                                                                                       std::string_view dirIn) {
+  std::string dirStr(dirIn);
+  std::string basePath = partIn->isWii() ? dirStr + "/" + getKindString(partIn->getKind()) : dirStr;
+  std::string filesIn = basePath + "/files";
 
   uint64_t totalSz = ROUND_UP_32(partIn->getDOLSize());
-  if (!RecursiveCalculateTotalSize(totalSz, &partIn->getFSTRoot(), filesIn.c_str()))
+  if (!RecursiveCalculateTotalSize(totalSz, &partIn->getFSTRoot(), filesIn))
     return std::nullopt;
   return totalSz;
 }

lib/DiscGCN.cpp

@@ -7,9 +7,9 @@
 #include <string>
 
 #include "nod/nod.hpp"
-#include "nod/Util.hpp"
+#include "Util.hpp"
 
-#include <logvisor/logvisor.hpp>
+#include <spdlog/spdlog.h>
 
 #define BUFFER_SZ 0x8000
 
@@ -126,11 +126,11 @@ DiscGCN::DiscGCN(std::unique_ptr<IDiscIO>&& dio, bool& err) : DiscBase(std::move
   m_partitions.emplace_back(std::make_unique<PartitionGCN>(*this, 0, err));
 }
 
-DiscBuilderGCN DiscGCN::makeMergeBuilder(SystemStringView outPath, FProgress progressCB) {
+DiscBuilderGCN DiscGCN::makeMergeBuilder(std::string_view outPath, FProgress progressCB) {
   return DiscBuilderGCN(outPath, progressCB);
 }
 
-bool DiscGCN::extractDiscHeaderFiles(SystemStringView path, const ExtractionContext& ctx) const { return true; }
+bool DiscGCN::extractDiscHeaderFiles(std::string_view path, const ExtractionContext& ctx) const { return true; }
 
 class PartitionBuilderGCN : public DiscBuilderBase::PartitionBuilderBase {
   uint64_t m_curUser = 0x57058000;
@@ -168,7 +168,7 @@ public:
     m_curUser -= reqSz;
     m_curUser &= 0xfffffffffffffff0;
     if (m_curUser < 0x30000) {
-      LogModule.report(logvisor::Error, FMT_STRING("user area low mark reached"));
+      spdlog::error("user area low mark reached");
       return -1;
     }
     static_cast<PartWriteStream&>(ws).seek(m_curUser);
@@ -211,7 +211,7 @@ public:
     fstSz = ROUND_UP_32(fstSz);
 
     if (fstOff + fstSz >= m_curUser) {
-      LogModule.report(logvisor::Error, FMT_STRING("FST flows into user area (one or the other is too big)"));
+      spdlog::error("FST flows into user area (one or the other is too big)");
       return false;
     }
 
@@ -226,7 +226,7 @@ public:
     return true;
   }
 
-  bool buildFromDirectory(SystemStringView dirIn) {
+  bool buildFromDirectory(std::string_view dirIn) {
     std::unique_ptr<IPartWriteStream> ws = beginWriteStream(0);
     if (!ws)
       return false;
@@ -234,29 +234,29 @@ public:
     if (!result)
       return false;
 
-    SystemString dirStr(dirIn);
+    std::string dirStr(dirIn);
 
     /* Check Apploader */
-    SystemString apploaderIn = dirStr + _SYS_STR("/sys/apploader.img");
+    std::string apploaderIn = dirStr + "/sys/apploader.img";
     Sstat apploaderStat;
     if (Stat(apploaderIn.c_str(), &apploaderStat)) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {}")), apploaderIn);
+      spdlog::error("unable to stat {}", apploaderIn);
       return false;
     }
 
     /* Check Boot */
-    SystemString bootIn = dirStr + _SYS_STR("/sys/boot.bin");
+    std::string bootIn = dirStr + "/sys/boot.bin";
     Sstat bootStat;
     if (Stat(bootIn.c_str(), &bootStat)) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {}")), bootIn);
+      spdlog::error("unable to stat {}", bootIn);
       return false;
     }
 
     /* Check BI2 */
-    SystemString bi2In = dirStr + _SYS_STR("/sys/bi2.bin");
+    std::string bi2In = dirStr + "/sys/bi2.bin";
     Sstat bi2Stat;
     if (Stat(bi2In.c_str(), &bi2Stat)) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {}")), bi2In);
+      spdlog::error("unable to stat {}", bi2In);
       return false;
     }
 
@@ -298,7 +298,7 @@ public:
             ws.write(buf, rdSz);
             xferSz += rdSz;
             if (0x2440 + xferSz >= m_curUser) {
-              LogModule.report(logvisor::Error, FMT_STRING("apploader flows into user area (one or the other is too big)"));
+              spdlog::error("apploader flows into user area (one or the other is too big)");
               return false;
             }
             m_parent.m_progressCB(m_parent.getProgressFactor(), apploaderIn, xferSz);
@@ -308,7 +308,7 @@ public:
         });
   }
 
-  bool mergeFromDirectory(const PartitionGCN* partIn, SystemStringView dirIn) {
+  bool mergeFromDirectory(const PartitionGCN* partIn, std::string_view dirIn) {
     std::unique_ptr<IPartWriteStream> ws = beginWriteStream(0);
     if (!ws)
       return false;
@@ -336,11 +336,11 @@ public:
         [this, partIn](IPartWriteStream& ws, size_t& xferSz) -> bool {
           std::unique_ptr<uint8_t[]> apploaderBuf = partIn->getApploaderBuf();
           size_t apploaderSz = partIn->getApploaderSize();
-          SystemString apploaderName(_SYS_STR("<apploader>"));
+          std::string apploaderName("<apploader>");
           ws.write(apploaderBuf.get(), apploaderSz);
           xferSz += apploaderSz;
           if (0x2440 + xferSz >= m_curUser) {
-            LogModule.report(logvisor::Error, FMT_STRING("apploader flows into user area (one or the other is too big)"));
+            spdlog::error("apploader flows into user area (one or the other is too big)");
             return false;
           }
           m_parent.m_progressCB(m_parent.getProgressFactor(), apploaderName, xferSz);
@@ -350,14 +350,14 @@ public:
   }
 };
 
-EBuildResult DiscBuilderGCN::buildFromDirectory(SystemStringView dirIn) {
+EBuildResult DiscBuilderGCN::buildFromDirectory(std::string_view dirIn) {
   if (!m_fileIO->beginWriteStream())
     return EBuildResult::Failed;
   if (!CheckFreeSpace(m_outPath.c_str(), 0x57058000)) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("not enough free disk space for {}")), m_outPath);
+    spdlog::error("not enough free disk space for {}", m_outPath);
     return EBuildResult::DiskFull;
   }
-  m_progressCB(getProgressFactor(), _SYS_STR("Preallocating image"), -1);
+  m_progressCB(getProgressFactor(), "Preallocating image", -1);
   ++m_progressIdx;
   {
     auto ws = m_fileIO->beginWriteStream(0);
@@ -372,34 +372,35 @@ EBuildResult DiscBuilderGCN::buildFromDirectory(SystemStringView dirIn) {
   return pb.buildFromDirectory(dirIn) ? EBuildResult::Success : EBuildResult::Failed;
 }
 
-std::optional<uint64_t> DiscBuilderGCN::CalculateTotalSizeRequired(SystemStringView dirIn) {
-  std::optional<uint64_t> sz = DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeBuild(dirIn, PartitionKind::Data, false);
+std::optional<uint64_t> DiscBuilderGCN::CalculateTotalSizeRequired(std::string_view dirIn) {
+  std::optional<uint64_t> sz =
+      DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeBuild(dirIn, PartitionKind::Data, false);
   if (!sz)
     return sz;
   *sz += 0x30000;
   if (sz > 0x57058000) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("disc capacity exceeded [{} / {}]")), *sz, 0x57058000);
+    spdlog::error("disc capacity exceeded [{} / {}]", *sz, 0x57058000);
     return std::nullopt;
   }
   return sz;
 }
 
-DiscBuilderGCN::DiscBuilderGCN(SystemStringView outPath, FProgress progressCB)
+DiscBuilderGCN::DiscBuilderGCN(std::string_view outPath, FProgress progressCB)
 : DiscBuilderBase(outPath, 0x57058000, progressCB) {
   m_partitions.emplace_back(std::make_unique<PartitionBuilderGCN>(*this));
 }
 
-DiscMergerGCN::DiscMergerGCN(SystemStringView outPath, DiscGCN& sourceDisc, FProgress progressCB)
+DiscMergerGCN::DiscMergerGCN(std::string_view outPath, DiscGCN& sourceDisc, FProgress progressCB)
 : m_sourceDisc(sourceDisc), m_builder(sourceDisc.makeMergeBuilder(outPath, progressCB)) {}
 
-EBuildResult DiscMergerGCN::mergeFromDirectory(SystemStringView dirIn) {
+EBuildResult DiscMergerGCN::mergeFromDirectory(std::string_view dirIn) {
   if (!m_builder.getFileIO().beginWriteStream())
     return EBuildResult::Failed;
   if (!CheckFreeSpace(m_builder.m_outPath.c_str(), 0x57058000)) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("not enough free disk space for {}")), m_builder.m_outPath);
+    spdlog::error("not enough free disk space for {}", m_builder.m_outPath);
     return EBuildResult::DiskFull;
   }
-  m_builder.m_progressCB(m_builder.getProgressFactor(), _SYS_STR("Preallocating image"), -1);
+  m_builder.m_progressCB(m_builder.getProgressFactor(), "Preallocating image", -1);
   ++m_builder.m_progressIdx;
   {
     auto ws = m_builder.m_fileIO->beginWriteStream(0);
@@ -416,13 +417,14 @@ EBuildResult DiscMergerGCN::mergeFromDirectory(SystemStringView dirIn) {
              : EBuildResult::Failed;
 }
 
-std::optional<uint64_t> DiscMergerGCN::CalculateTotalSizeRequired(DiscGCN& sourceDisc, SystemStringView dirIn) {
-  std::optional<uint64_t> sz = DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeMerge(sourceDisc.getDataPartition(), dirIn);
+std::optional<uint64_t> DiscMergerGCN::CalculateTotalSizeRequired(DiscGCN& sourceDisc, std::string_view dirIn) {
+  std::optional<uint64_t> sz =
+      DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeMerge(sourceDisc.getDataPartition(), dirIn);
   if (!sz)
     return std::nullopt;
   *sz += 0x30000;
   if (sz > 0x57058000) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("disc capacity exceeded [{} / {}]")), *sz, 0x57058000);
+    spdlog::error("disc capacity exceeded [{} / {}]", *sz, 0x57058000);
     return std::nullopt;
   }
   return sz;

lib/DiscIOISO.cpp

@@ -1,6 +1,7 @@
 #include "nod/IDiscIO.hpp"
 #include "nod/IFileIO.hpp"
-#include "nod/Util.hpp"
+
+#include "Util.hpp"
 
 namespace nod {
 
@@ -8,7 +9,7 @@ class DiscIOISO : public IDiscIO {
   std::unique_ptr<IFileIO> m_fio;
 
 public:
-  DiscIOISO(SystemStringView fpin) : m_fio(NewFileIO(fpin)) {}
+  DiscIOISO(std::string_view fpin) : m_fio(NewFileIO(fpin)) {}
 
   class ReadStream : public IReadStream {
     friend class DiscIOISO;
@@ -57,6 +58,6 @@ public:
   }
 };
 
-std::unique_ptr<IDiscIO> NewDiscIOISO(SystemStringView path) { return std::make_unique<DiscIOISO>(path); }
+std::unique_ptr<IDiscIO> NewDiscIOISO(std::string_view path) { return std::make_unique<DiscIOISO>(path); }
 
 } // namespace nod

lib/DiscIONFS.cpp

@@ -1,9 +1,10 @@
 #include "nod/IDiscIO.hpp"
 #include "nod/IFileIO.hpp"
-#include "nod/Util.hpp"
 #include "nod/aes.hpp"
+#include "nod/Endian.hpp"
+#include "Util.hpp"
 
-#include <logvisor/logvisor.hpp>
+#include <spdlog/spdlog.h>
 
 namespace nod {
 
@@ -34,8 +35,8 @@ class DiscIONFS : public IDiscIO {
     uint32_t totalBlockCount = 0;
     for (uint32_t i = 0; i < nfsHead.lbaRangeCount; ++i)
       totalBlockCount += nfsHead.lbaRanges[i].numBlocks;
-    return (uint64_t(totalBlockCount) * uint64_t(0x8000) +
-            (uint64_t(0x200) + uint64_t(0xF9FFFFF))) / uint64_t(0xFA00000);
+    return (uint64_t(totalBlockCount) * uint64_t(0x8000) + (uint64_t(0x200) + uint64_t(0xF9FFFFF))) /
+           uint64_t(0xFA00000);
   }
 
   struct FBO {
@@ -57,57 +58,55 @@ class DiscIONFS : public IDiscIO {
     if (block == UINT32_MAX)
       return {UINT32_MAX, UINT32_MAX, UINT32_MAX, UINT32_MAX};
     auto fileAndRemBlocks = nod::div(block, uint32_t(8000)); /* 8000 blocks per file */
-    return {uint32_t(fileAndRemBlocks.quot), uint32_t(fileAndRemBlocks.rem),
-            uint32_t(blockAndRemBytes.quot), uint32_t(blockAndRemBytes.rem)};
+    return {uint32_t(fileAndRemBlocks.quot), uint32_t(fileAndRemBlocks.rem), uint32_t(blockAndRemBytes.quot),
+            uint32_t(blockAndRemBytes.rem)};
   }
 
 public:
-  DiscIONFS(SystemStringView fpin, bool& err) {
+  DiscIONFS(std::string_view fpin, bool& err) {
     /* Validate file path format */
-    using SignedSize = std::make_signed<SystemString::size_type>::type;
-    const auto dotPos = SignedSize(fpin.rfind(_SYS_STR('.')));
-    const auto slashPos = SignedSize(fpin.find_last_of(_SYS_STR("/\\")));
-    if (fpin.size() <= 4 || dotPos == -1 || dotPos <= slashPos ||
-        fpin.compare(slashPos + 1, 4, _SYS_STR("hif_")) ||
-        fpin.compare(dotPos, fpin.size() - dotPos, _SYS_STR(".nfs"))) {
-      LogModule.report(logvisor::Error,
-        FMT_STRING(_SYS_STR("'{}' must begin with 'hif_' and end with '.nfs' to be accepted as an NFS image")), fpin);
+    using SignedSize = std::make_signed<std::string::size_type>::type;
+    const auto dotPos = SignedSize(fpin.rfind('.'));
+    const auto slashPos = SignedSize(fpin.find_last_of("/\\"));
+    if (fpin.size() <= 4 || dotPos == -1 || dotPos <= slashPos || fpin.compare(slashPos + 1, 4, "hif_") ||
+        fpin.compare(dotPos, fpin.size() - dotPos, ".nfs")) {
+      spdlog::error("'{}' must begin with 'hif_' and end with '.nfs' to be accepted as an NFS image", fpin);
       err = true;
       return;
     }
 
     /* Load key file */
-    const SystemString dir(fpin.begin(), fpin.begin() + slashPos + 1);
-    auto keyFile = NewFileIO(dir + _SYS_STR("../code/htk.bin"))->beginReadStream();
+    const std::string dir(fpin.begin(), fpin.begin() + slashPos + 1);
+    auto keyFile = NewFileIO(dir + "../code/htk.bin")->beginReadStream();
     if (!keyFile)
-      keyFile = NewFileIO(dir + _SYS_STR("htk.bin"))->beginReadStream();
+      keyFile = NewFileIO(dir + "htk.bin")->beginReadStream();
     if (!keyFile) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("Unable to open '{}../code/htk.bin' or '{}htk.bin'")), dir, dir);
+      spdlog::error("Unable to open '{}../code/htk.bin' or '{}htk.bin'", dir, dir);
       err = true;
       return;
     }
     if (keyFile->read(key, 16) != 16) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("Unable to read from '{}../code/htk.bin' or '{}htk.bin'")), dir, dir);
+      spdlog::error("Unable to read from '{}../code/htk.bin' or '{}htk.bin'", dir, dir);
       err = true;
       return;
     }
 
     /* Load header from first file */
-    const SystemString firstPath = fmt::format(FMT_STRING(_SYS_STR("{}hif_{:06}.nfs")), dir, 0);
+    const std::string firstPath = fmt::format("{}hif_{:06}.nfs", dir, 0);
     files.push_back(NewFileIO(firstPath));
     auto rs = files.back()->beginReadStream();
     if (!rs) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("'{}' does not exist")), firstPath);
+      spdlog::error("'{}' does not exist", firstPath);
       err = true;
       return;
     }
     if (rs->read(&nfsHead, 0x200) != 0x200) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("Unable to read header from '{}'")), firstPath);
+      spdlog::error("Unable to read header from '{}'", firstPath);
       err = true;
       return;
     }
     if (std::memcmp(&nfsHead.magic, "EGGS", 4)) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("Invalid magic in '{}'")), firstPath);
+      spdlog::error("Invalid magic in '{}'", firstPath);
       err = true;
       return;
     }
@@ -122,10 +121,10 @@ public:
     const uint32_t numFiles = calculateNumFiles();
     files.reserve(numFiles);
     for (uint32_t i = 1; i < numFiles; ++i) {
-      SystemString path = fmt::format(FMT_STRING(_SYS_STR("{}hif_{:06}.nfs")), dir, i);
+      std::string path = fmt::format("{}hif_{:06}.nfs", dir, i);
       files.push_back(NewFileIO(path));
       if (!files.back()->exists()) {
-        LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("'{}' does not exist")), path);
+        spdlog::error("'{}' does not exist", path);
         err = true;
         return;
       }
@@ -150,8 +149,10 @@ public:
     uint32_t m_curBlock = UINT32_MAX;
 
     ReadStream(const DiscIONFS& parent, uint64_t offset, bool& err)
-    : m_parent(parent), m_aes(NewAES()),
-      m_physAddr({UINT32_MAX, UINT32_MAX, UINT32_MAX, UINT32_MAX}), m_offset(offset) {
+    : m_parent(parent)
+    , m_aes(NewAES())
+    , m_physAddr({UINT32_MAX, UINT32_MAX, UINT32_MAX, UINT32_MAX})
+    , m_offset(offset) {
       m_aes->setKey(m_parent.key);
       setLogicalAddr(offset);
     }
@@ -161,7 +162,7 @@ public:
 
     void setCurFile(uint32_t curFile) {
       if (curFile >= m_parent.files.size()) {
-        LogModule.report(logvisor::Error, FMT_STRING("Out of bounds NFS file access"));
+        spdlog::error("Out of bounds NFS file access");
         return;
       }
       m_curFile = curFile;
@@ -260,7 +261,7 @@ public:
   bool hasWiiCrypto() const override { return false; }
 };
 
-std::unique_ptr<IDiscIO> NewDiscIONFS(SystemStringView path) {
+std::unique_ptr<IDiscIO> NewDiscIONFS(std::string_view path) {
   bool err = false;
   auto ret = std::make_unique<DiscIONFS>(path, err);
   if (err)
@@ -268,4 +269,4 @@ std::unique_ptr<IDiscIO> NewDiscIONFS(SystemStringView path) {
   return ret;
 }
 
-}
+} // namespace nod

lib/DiscIOWBFS.cpp

@@ -5,9 +5,10 @@
 
 #include "nod/IDiscIO.hpp"
 #include "nod/IFileIO.hpp"
-#include "nod/Util.hpp"
+#include "nod/Endian.hpp"
+#include "Util.hpp"
 
-#include <logvisor/logvisor.hpp>
+#include <spdlog/spdlog.h>
 
 namespace nod {
 
@@ -76,14 +77,14 @@ class DiscIOWBFS : public IDiscIO {
     off *= 512ULL;
     rs.seek(off, SEEK_SET);
     if (rs.read(buf, count * 512ULL) != count * 512ULL) {
-      LogModule.report(logvisor::Error, FMT_STRING("error reading disc"));
+      spdlog::error("error reading disc");
       return 1;
     }
     return 0;
   }
 
 public:
-  DiscIOWBFS(SystemStringView fpin) : m_fio(NewFileIO(fpin)) {
+  DiscIOWBFS(std::string_view fpin) : m_fio(NewFileIO(fpin)) {
     /* Temporary file handle to read LBA table */
     std::unique_ptr<IFileIO::IReadStream> rs = m_fio->beginReadStream();
     if (!rs)
@@ -92,7 +93,7 @@ public:
     WBFS* p = &wbfs;
     WBFSHead tmpHead;
     if (rs->read(&tmpHead, sizeof(tmpHead)) != sizeof(tmpHead)) {
-      LogModule.report(logvisor::Error, FMT_STRING("unable to read WBFS head"));
+      spdlog::error("unable to read WBFS head");
       return;
     }
     unsigned hd_sector_size = 1 << tmpHead.hd_sec_sz_s;
@@ -102,7 +103,7 @@ public:
     WBFSHead* head = (WBFSHead*)wbfsHead.get();
     rs->seek(0, SEEK_SET);
     if (rs->read(head, hd_sector_size) != hd_sector_size) {
-      LogModule.report(logvisor::Error, FMT_STRING("unable to read WBFS head"));
+      spdlog::error("unable to read WBFS head");
       return;
     }
 
@@ -115,11 +116,11 @@ public:
     if (_wbfsReadSector(*rs, p->part_lba, 1, head))
       return;
     if (hd_sector_size && head->hd_sec_sz_s != size_to_shift(hd_sector_size)) {
-      LogModule.report(logvisor::Error, FMT_STRING("hd sector size doesn't match"));
+      spdlog::error("hd sector size doesn't match");
       return;
     }
     if (num_hd_sector && head->n_hd_sec != SBig(num_hd_sector)) {
-      LogModule.report(logvisor::Error, FMT_STRING("hd num sector doesn't match"));
+      spdlog::error("hd num sector doesn't match");
       return;
     }
     p->hd_sec_sz = 1 << head->hd_sec_sz_s;
@@ -147,7 +148,7 @@ public:
     if (head->disc_table[0]) {
       wbfsDiscInfo.reset(new uint8_t[p->disc_info_sz]);
       if (!wbfsDiscInfo) {
-        LogModule.report(logvisor::Error, FMT_STRING("allocating memory"));
+        spdlog::error("allocating memory");
         return;
       }
       if (_wbfsReadSector(*rs, p->part_lba + 1, disc_info_sz_lba, wbfsDiscInfo.get()))
@@ -275,6 +276,6 @@ public:
   std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const override { return {}; }
 };
 
-std::unique_ptr<IDiscIO> NewDiscIOWBFS(SystemStringView path) { return std::make_unique<DiscIOWBFS>(path); }
+std::unique_ptr<IDiscIO> NewDiscIOWBFS(std::string_view path) { return std::make_unique<DiscIOWBFS>(path); }
 
 } // namespace nod

lib/DiscWii.cpp

@@ -9,7 +9,9 @@
 #include "nod/aes.hpp"
 #include "nod/nod.hpp"
 #include "nod/sha1.h"
-#include "nod/Util.hpp"
+#include "Util.hpp"
+
+#include <spdlog/spdlog.h>
 
 namespace nod {
 
@@ -421,7 +423,7 @@ public:
 
       uint32_t h3;
       if (rs->read(&h3, 4) != 4) {
-        LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to read H3 offset apploader")));
+        spdlog::error("unable to read H3 offset apploader");
         return nullptr;
       }
       h3 = SBig(h3);
@@ -439,12 +441,12 @@ public:
     return buf;
   }
 
-  bool extractCryptoFiles(SystemStringView basePath, const ExtractionContext& ctx) const override {
+  bool extractCryptoFiles(std::string_view basePath, const ExtractionContext& ctx) const override {
     Sstat theStat;
-    SystemString basePathStr(basePath);
+    std::string basePathStr(basePath);
 
     /* Extract Ticket */
-    SystemString ticketPath = basePathStr + _SYS_STR("/ticket.bin");
+    std::string ticketPath = basePathStr + "/ticket.bin";
     if (ctx.force || Stat(ticketPath.c_str(), &theStat)) {
       if (ctx.progressCB)
         ctx.progressCB("ticket.bin", 0.f);
@@ -455,7 +457,7 @@ public:
     }
 
     /* Extract TMD */
-    SystemString tmdPath = basePathStr + _SYS_STR("/tmd.bin");
+    std::string tmdPath = basePathStr + "/tmd.bin";
     if (ctx.force || Stat(tmdPath.c_str(), &theStat)) {
       if (ctx.progressCB)
         ctx.progressCB("tmd.bin", 0.f);
@@ -466,7 +468,7 @@ public:
     }
 
     /* Extract Certs */
-    SystemString certPath = basePathStr + _SYS_STR("/cert.bin");
+    std::string certPath = basePathStr + "/cert.bin";
     if (ctx.force || Stat(certPath.c_str(), &theStat)) {
       if (ctx.progressCB)
         ctx.progressCB("cert.bin", 0.f);
@@ -479,7 +481,7 @@ public:
     }
 
     /* Extract H3 */
-    SystemString h3Path = basePathStr + _SYS_STR("/h3.bin");
+    std::string h3Path = basePathStr + "/h3.bin";
     if (ctx.force || Stat(h3Path.c_str(), &theStat)) {
       if (ctx.progressCB)
         ctx.progressCB("h3.bin", 0.f);
@@ -539,7 +541,7 @@ DiscWii::DiscWii(std::unique_ptr<IDiscIO>&& dio, bool& err) : DiscBase(std::move
       kind = part.partType;
       break;
     default:
-      LogModule.report(logvisor::Error, FMT_STRING("invalid partition type {}"), part.partType);
+      spdlog::error("invalid partition type {}", static_cast<uint32_t>(part.partType));
       err = true;
       return;
     }
@@ -549,22 +551,22 @@ DiscWii::DiscWii(std::unique_ptr<IDiscIO>&& dio, bool& err) : DiscBase(std::move
   }
 }
 
-DiscBuilderWii DiscWii::makeMergeBuilder(SystemStringView outPath, bool dualLayer, FProgress progressCB) {
+DiscBuilderWii DiscWii::makeMergeBuilder(std::string_view outPath, bool dualLayer, FProgress progressCB) {
   return DiscBuilderWii(outPath, dualLayer, progressCB);
 }
 
-bool DiscWii::extractDiscHeaderFiles(SystemStringView basePath, const ExtractionContext& ctx) const {
-  SystemString basePathStr(basePath);
+bool DiscWii::extractDiscHeaderFiles(std::string_view basePath, const ExtractionContext& ctx) const {
+  std::string basePathStr(basePath);
 
-  if (Mkdir((basePathStr + _SYS_STR("/disc")).c_str(), 0755) && errno != EEXIST) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to mkdir '{}/disc'")), basePathStr);
+  if (Mkdir((basePathStr + "/disc").c_str(), 0755) && errno != EEXIST) {
+    spdlog::error("unable to mkdir '{}/disc'", basePathStr);
     return false;
   }
 
   Sstat theStat;
 
   /* Extract Header */
-  SystemString headerPath = basePathStr + _SYS_STR("/disc/header.bin");
+  std::string headerPath = basePathStr + "/disc/header.bin";
   if (ctx.force || Stat(headerPath.c_str(), &theStat)) {
     if (ctx.progressCB)
       ctx.progressCB("header.bin", 0.f);
@@ -580,7 +582,7 @@ bool DiscWii::extractDiscHeaderFiles(SystemStringView basePath, const Extraction
   }
 
   /* Extract Region info */
-  SystemString regionPath = basePathStr + _SYS_STR("/disc/region.bin");
+  std::string regionPath = basePathStr + "/disc/region.bin";
   if (ctx.force || Stat(regionPath.c_str(), &theStat)) {
     if (ctx.progressCB)
       ctx.progressCB("header.bin", 0.f);
@@ -675,7 +677,7 @@ public:
       }
 
       if (m_fio->write(m_buf, 0x200000) != 0x200000) {
-        LogModule.report(logvisor::Error, FMT_STRING("unable to write full disc group"));
+        spdlog::error("unable to write full disc group");
         return;
       }
     }
@@ -684,7 +686,7 @@ public:
     PartWriteStream(PartitionBuilderWii& parent, uint64_t baseOffset, uint64_t offset, bool& err)
     : m_parent(parent), m_baseOffset(baseOffset), m_offset(offset) {
       if (offset % 0x1F0000) {
-        LogModule.report(logvisor::Error, FMT_STRING("partition write stream MUST begin on 0x1F0000-aligned boundary"));
+        spdlog::error("partition write stream MUST begin on 0x1F0000-aligned boundary");
         err = true;
         return;
       }
@@ -754,13 +756,13 @@ public:
   uint64_t userAllocate(uint64_t reqSz, IPartWriteStream& ws) override {
     reqSz = ROUND_UP_32(reqSz);
     if (m_curUser + reqSz >= 0x1FB450000) {
-      LogModule.report(logvisor::Error, FMT_STRING("partition exceeds maximum single-partition capacity"));
+      spdlog::error("partition exceeds maximum single-partition capacity");
       return -1;
     }
     uint64_t ret = m_curUser;
     PartWriteStream& cws = static_cast<PartWriteStream&>(ws);
     if (cws.m_offset > ret) {
-      LogModule.report(logvisor::Error, FMT_STRING("partition overwrite error"));
+      spdlog::error("partition overwrite error");
       return -1;
     }
     while (cws.m_offset < ret)
@@ -838,7 +840,7 @@ public:
       fstSz = ROUND_UP_32(fstSz);
 
       if (fstOff + fstSz >= 0x1F0000) {
-        LogModule.report(logvisor::Error, FMT_STRING("FST flows into user area (one or the other is too big)"));
+        spdlog::error("FST flows into user area (one or the other is too big)");
         return -1;
       }
 
@@ -854,7 +856,7 @@ public:
 
       size_t fstOffRel = fstOff - 0x2440;
       if (xferSz > fstOffRel) {
-        LogModule.report(logvisor::Error, FMT_STRING("apploader unexpectedly flows into FST"));
+        spdlog::error("apploader unexpectedly flows into FST");
         return -1;
       }
       for (size_t i = 0; i < fstOffRel - xferSz; ++i)
@@ -902,7 +904,7 @@ public:
     }* bfWindow = (BFWindow*)(tmdData.get() + 0x19A);
     bool good = false;
     uint64_t attempts = 0;
-    SystemString bfName(_SYS_STR("Brute force attempts"));
+    std::string bfName("Brute force attempts");
     for (int w = 0; w < 7; ++w) {
       for (uint64_t i = 0; i < UINT64_MAX; ++i) {
         bfWindow->word[w] = i;
@@ -930,55 +932,55 @@ public:
     return m_baseOffset + dataOff + groupCount * 0x200000;
   }
 
-  uint64_t buildFromDirectory(SystemStringView dirIn) {
-    SystemString dirStr(dirIn);
-    SystemString basePath = dirStr + _SYS_STR("/") + getKindString(m_kind);
+  uint64_t buildFromDirectory(std::string_view dirIn) {
+    std::string dirStr(dirIn);
+    std::string basePath = dirStr + "/" + getKindString(m_kind);
 
     /* Check Ticket */
-    SystemString ticketIn = basePath + _SYS_STR("/ticket.bin");
+    std::string ticketIn = basePath + "/ticket.bin";
     Sstat theStat;
     if (Stat(ticketIn.c_str(), &theStat)) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {}")), ticketIn);
+      spdlog::error("unable to stat {}", ticketIn);
       return -1;
     }
 
     /* Check TMD */
-    SystemString tmdIn = basePath + _SYS_STR("/tmd.bin");
+    std::string tmdIn = basePath + "/tmd.bin";
     Sstat tmdStat;
     if (Stat(tmdIn.c_str(), &tmdStat)) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {}")), tmdIn);
+      spdlog::error("unable to stat {}", tmdIn);
       return -1;
     }
 
     /* Check Cert */
-    SystemString certIn = basePath + _SYS_STR("/cert.bin");
+    std::string certIn = basePath + "/cert.bin";
     Sstat certStat;
     if (Stat(certIn.c_str(), &certStat)) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {}")), certIn);
+      spdlog::error("unable to stat {}", certIn);
       return -1;
     }
 
     /* Check Apploader */
-    SystemString apploaderIn = basePath + _SYS_STR("/sys/apploader.img");
+    std::string apploaderIn = basePath + "/sys/apploader.img";
     Sstat apploaderStat;
     if (Stat(apploaderIn.c_str(), &apploaderStat)) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {}")), apploaderIn);
+      spdlog::error("unable to stat {}", apploaderIn);
       return -1;
     }
 
     /* Check Boot */
-    SystemString bootIn = basePath + _SYS_STR("/sys/boot.bin");
+    std::string bootIn = basePath + "/sys/boot.bin";
     Sstat bootStat;
     if (Stat(bootIn.c_str(), &bootStat)) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {}")), bootIn);
+      spdlog::error("unable to stat {}", bootIn);
       return -1;
     }
 
     /* Check BI2 */
-    SystemString bi2In = basePath + _SYS_STR("/sys/bi2.bin");
+    std::string bi2In = basePath + "/sys/bi2.bin";
     Sstat bi2Stat;
     if (Stat(bi2In.c_str(), &bi2Stat)) {
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to stat {}")), bi2In);
+      spdlog::error("unable to stat {}", bi2In);
       return -1;
     }
 
@@ -1071,7 +1073,7 @@ public:
             cws.write(buf, rdSz);
             xferSz += rdSz;
             if (0x2440 + xferSz >= 0x1F0000) {
-              LogModule.report(logvisor::Error, FMT_STRING("apploader flows into user area (one or the other is too big)"));
+              spdlog::error("apploader flows into user area (one or the other is too big)");
               return false;
             }
             m_parent.m_progressCB(m_parent.getProgressFactor(), apploaderIn, xferSz);
@@ -1085,7 +1087,7 @@ public:
         apploaderStat.st_size);
   }
 
-  uint64_t mergeFromDirectory(const PartitionWii* partIn, SystemStringView dirIn) {
+  uint64_t mergeFromDirectory(const PartitionWii* partIn, std::string_view dirIn) {
     size_t phSz;
     std::unique_ptr<uint8_t[]> phBuf = partIn->readPartitionHeaderBuf(phSz);
 
@@ -1125,11 +1127,11 @@ public:
         [this, partIn](IPartWriteStream& cws, size_t& xferSz) -> bool {
           std::unique_ptr<uint8_t[]> apploaderBuf = partIn->getApploaderBuf();
           size_t apploaderSz = partIn->getApploaderSize();
-          SystemString apploaderName(_SYS_STR("<apploader>"));
+          std::string apploaderName("<apploader>");
           cws.write(apploaderBuf.get(), apploaderSz);
           xferSz += apploaderSz;
           if (0x2440 + xferSz >= 0x1F0000) {
-            LogModule.report(logvisor::Error, FMT_STRING("apploader flows into user area (one or the other is too big)"));
+            spdlog::error("apploader flows into user area (one or the other is too big)");
             return false;
           }
           m_parent.m_progressCB(m_parent.getProgressFactor(), apploaderName, xferSz);
@@ -1143,9 +1145,9 @@ public:
   }
 };
 
-EBuildResult DiscBuilderWii::buildFromDirectory(SystemStringView dirIn) {
-  SystemString dirStr(dirIn);
-  SystemString basePath = SystemString(dirStr) + _SYS_STR("/") + getKindString(PartitionKind::Data);
+EBuildResult DiscBuilderWii::buildFromDirectory(std::string_view dirIn) {
+  std::string dirStr(dirIn);
+  std::string basePath = std::string(dirStr) + "/" + getKindString(PartitionKind::Data);
 
   PartitionBuilderWii& pb = static_cast<PartitionBuilderWii&>(*m_partitions[0]);
   uint64_t filledSz = pb.m_baseOffset;
@@ -1153,10 +1155,10 @@ EBuildResult DiscBuilderWii::buildFromDirectory(SystemStringView dirIn) {
     return EBuildResult::Failed;
 
   if (!CheckFreeSpace(m_outPath.c_str(), m_discCapacity)) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("not enough free disk space for {}")), m_outPath);
+    spdlog::error("not enough free disk space for {}", m_outPath);
     return EBuildResult::DiskFull;
   }
-  m_progressCB(getProgressFactor(), _SYS_STR("Preallocating image"), -1);
+  m_progressCB(getProgressFactor(), "Preallocating image", -1);
   ++m_progressIdx;
   {
     std::unique_ptr<IFileIO::IWriteStream> ws = m_fileIO->beginWriteStream(0);
@@ -1172,18 +1174,18 @@ EBuildResult DiscBuilderWii::buildFromDirectory(SystemStringView dirIn) {
   if (filledSz == UINT64_MAX)
     return EBuildResult::Failed;
   else if (filledSz >= uint64_t(m_discCapacity)) {
-    LogModule.report(logvisor::Error, FMT_STRING("data partition exceeds disc capacity"));
+    spdlog::error("data partition exceeds disc capacity");
     return EBuildResult::Failed;
   }
 
-  m_progressCB(getProgressFactor(), _SYS_STR("Finishing Disc"), -1);
+  m_progressCB(getProgressFactor(), "Finishing Disc", -1);
   ++m_progressIdx;
 
   /* Populate disc header */
   std::unique_ptr<IFileIO::IWriteStream> ws = m_fileIO->beginWriteStream(0);
   if (!ws)
     return EBuildResult::Failed;
-  SystemString headerPath = basePath + _SYS_STR("/disc/header.bin");
+  std::string headerPath = basePath + "/disc/header.bin";
   std::unique_ptr<IFileIO::IReadStream> rs = NewFileIO(headerPath.c_str())->beginReadStream();
   if (!rs)
     return EBuildResult::Failed;
@@ -1205,7 +1207,7 @@ EBuildResult DiscBuilderWii::buildFromDirectory(SystemStringView dirIn) {
   ws->write(vals, 4);
 
   /* Populate region info */
-  SystemString regionPath = basePath + _SYS_STR("/disc/region.bin");
+  std::string regionPath = basePath + "/disc/region.bin";
   rs = NewFileIO(regionPath.c_str())->beginReadStream();
   if (!rs)
     return EBuildResult::Failed;
@@ -1235,7 +1237,7 @@ EBuildResult DiscBuilderWii::buildFromDirectory(SystemStringView dirIn) {
   return EBuildResult::Success;
 }
 
-std::optional<uint64_t> DiscBuilderWii::CalculateTotalSizeRequired(SystemStringView dirIn, bool& dualLayer) {
+std::optional<uint64_t> DiscBuilderWii::CalculateTotalSizeRequired(std::string_view dirIn, bool& dualLayer) {
   std::optional<uint64_t> sz = DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeBuild(dirIn, PartitionKind::Data, true);
   if (!sz)
     return sz;  
@@ -1246,31 +1248,31 @@ std::optional<uint64_t> DiscBuilderWii::CalculateTotalSizeRequired(SystemStringV
   *sz += 0x200000;
   dualLayer = (sz > 0x118240000);
   if (sz > 0x1FB4E0000) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("disc capacity exceeded [{} / {}]")), *sz, 0x1FB4E0000);
+    spdlog::error("disc capacity exceeded [{} / {}]", *sz, 0x1FB4E0000);
     return std::nullopt;
   }
   return sz;
 }
 
-DiscBuilderWii::DiscBuilderWii(SystemStringView outPath, bool dualLayer, FProgress progressCB)
+DiscBuilderWii::DiscBuilderWii(std::string_view outPath, bool dualLayer, FProgress progressCB)
 : DiscBuilderBase(outPath, dualLayer ? 0x1FB4E0000 : 0x118240000, progressCB) {
   m_partitions.emplace_back(std::make_unique<PartitionBuilderWii>(*this, PartitionKind::Data, 0x200000));
 }
 
-DiscMergerWii::DiscMergerWii(SystemStringView outPath, DiscWii& sourceDisc, bool dualLayer, FProgress progressCB)
+DiscMergerWii::DiscMergerWii(std::string_view outPath, DiscWii& sourceDisc, bool dualLayer, FProgress progressCB)
 : m_sourceDisc(sourceDisc), m_builder(sourceDisc.makeMergeBuilder(outPath, dualLayer, progressCB)) {}
 
-EBuildResult DiscMergerWii::mergeFromDirectory(SystemStringView dirIn) {
+EBuildResult DiscMergerWii::mergeFromDirectory(std::string_view dirIn) {
   PartitionBuilderWii& pb = static_cast<PartitionBuilderWii&>(*m_builder.m_partitions[0]);
   uint64_t filledSz = pb.m_baseOffset;
   if (!m_builder.m_fileIO->beginWriteStream())
     return EBuildResult::Failed;
 
   if (!CheckFreeSpace(m_builder.m_outPath.c_str(), m_builder.m_discCapacity)) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("not enough free disk space for {}")), m_builder.m_outPath);
+    spdlog::error("not enough free disk space for {}", m_builder.m_outPath);
     return EBuildResult::DiskFull;
   }
-  m_builder.m_progressCB(m_builder.getProgressFactor(), _SYS_STR("Preallocating image"), -1);
+  m_builder.m_progressCB(m_builder.getProgressFactor(), "Preallocating image", -1);
   ++m_builder.m_progressIdx;
   {
     std::unique_ptr<IFileIO::IWriteStream> ws = m_builder.m_fileIO->beginWriteStream(0);
@@ -1286,11 +1288,11 @@ EBuildResult DiscMergerWii::mergeFromDirectory(SystemStringView dirIn) {
   if (filledSz == UINT64_MAX)
     return EBuildResult::Failed;
   else if (filledSz >= uint64_t(m_builder.m_discCapacity)) {
-    LogModule.report(logvisor::Error, FMT_STRING("data partition exceeds disc capacity"));
+    spdlog::error("data partition exceeds disc capacity");
     return EBuildResult::Failed;
   }
 
-  m_builder.m_progressCB(m_builder.getProgressFactor(), _SYS_STR("Finishing Disc"), -1);
+  m_builder.m_progressCB(m_builder.getProgressFactor(), "Finishing Disc", -1);
   ++m_builder.m_progressIdx;
 
   /* Populate disc header */
@@ -1342,7 +1344,7 @@ EBuildResult DiscMergerWii::mergeFromDirectory(SystemStringView dirIn) {
   return EBuildResult::Success;
 }
 
-std::optional<uint64_t> DiscMergerWii::CalculateTotalSizeRequired(DiscWii& sourceDisc, SystemStringView dirIn, bool& dualLayer) {
+std::optional<uint64_t> DiscMergerWii::CalculateTotalSizeRequired(DiscWii& sourceDisc, std::string_view dirIn, bool& dualLayer) {
   std::optional<uint64_t> sz = DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeMerge(sourceDisc.getDataPartition(), dirIn);
   if (!sz)
     return std::nullopt;
@@ -1353,7 +1355,7 @@ std::optional<uint64_t> DiscMergerWii::CalculateTotalSizeRequired(DiscWii& sourc
   *sz += 0x200000;
   dualLayer = (sz > 0x118240000);
   if (sz > 0x1FB4E0000) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("disc capacity exceeded [{} / {}]")), *sz, 0x1FB4E0000);
+    spdlog::error("disc capacity exceeded [{} / {}]", *sz, 0x1FB4E0000);
     return std::nullopt;
   }
   return sz;

lib/FileIOFILE.cpp

@@ -4,21 +4,21 @@
 #include <cstdlib>
 
 #include "nod/IFileIO.hpp"
-#include "nod/Util.hpp"
+#include "Util.hpp"
 
-#include <logvisor/logvisor.hpp>
+#include <spdlog/spdlog.h>
 
 namespace nod {
 
 class FileIOFILE : public IFileIO {
-  SystemString m_path;
+  std::string m_path;
   int64_t m_maxWriteSize;
 
 public:
-  FileIOFILE(SystemStringView path, int64_t maxWriteSize) : m_path(path), m_maxWriteSize(maxWriteSize) {}
+  FileIOFILE(std::string_view path, int64_t maxWriteSize) : m_path(path), m_maxWriteSize(maxWriteSize) {}
 
   bool exists() override {
-    FILE* fp = Fopen(m_path.c_str(), _SYS_STR("rb"));
+    FILE* fp = Fopen(m_path.c_str(), "rb");
     if (!fp)
       return false;
     fclose(fp);
@@ -26,7 +26,7 @@ public:
   }
 
   uint64_t size() override {
-    FILE* fp = Fopen(m_path.c_str(), _SYS_STR("rb"));
+    FILE* fp = Fopen(m_path.c_str(), "rb");
     if (!fp)
       return 0;
     FSeek(fp, 0, SEEK_END);
@@ -38,34 +38,33 @@ public:
   struct WriteStream : public IFileIO::IWriteStream {
     FILE* fp;
     int64_t m_maxWriteSize;
-    WriteStream(SystemStringView path, int64_t maxWriteSize, bool& err) : m_maxWriteSize(maxWriteSize) {
-      fp = Fopen(path.data(), _SYS_STR("wb"));
+    WriteStream(std::string_view path, int64_t maxWriteSize, bool& err) : m_maxWriteSize(maxWriteSize) {
+      fp = Fopen(path.data(), "wb");
       if (!fp) {
-        LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to open '{}' for writing")), path);
+        spdlog::error("unable to open '{}' for writing", path);
         err = true;
       }
     }
-    WriteStream(SystemStringView path, uint64_t offset, int64_t maxWriteSize, bool& err)
+    WriteStream(std::string_view path, uint64_t offset, int64_t maxWriteSize, bool& err)
     : m_maxWriteSize(maxWriteSize) {
-      fp = Fopen(path.data(), _SYS_STR("ab"));
+      fp = Fopen(path.data(), "ab");
       if (!fp)
         goto FailLoc;
       fclose(fp);
-      fp = Fopen(path.data(), _SYS_STR("r+b"));
+      fp = Fopen(path.data(), "r+b");
       if (!fp)
         goto FailLoc;
       FSeek(fp, offset, SEEK_SET);
       return;
     FailLoc:
-      LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to open '{}' for writing")), path);
+      spdlog::error("unable to open '{}' for writing", path);
       err = true;
     }
     ~WriteStream() override { fclose(fp); }
     uint64_t write(const void* buf, uint64_t length) override {
       if (m_maxWriteSize >= 0) {
         if (FTell(fp) + length > m_maxWriteSize) {
-          LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("write operation exceeds file's {}-byte limit")),
-                           m_maxWriteSize);
+          spdlog::error("write operation exceeds file's {}-byte limit", m_maxWriteSize);
           return 0;
         }
       }
@@ -95,14 +94,14 @@ public:
 
   struct ReadStream : public IFileIO::IReadStream {
     FILE* fp;
-    ReadStream(SystemStringView path, bool& err) {
-      fp = Fopen(path.data(), _SYS_STR("rb"));
+    ReadStream(std::string_view path, bool& err) {
+      fp = Fopen(path.data(), "rb");
       if (!fp) {
         err = true;
-        LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to open '{}' for reading")), path);
+        spdlog::error("unable to open '{}' for reading", path);
       }
     }
-    ReadStream(SystemStringView path, uint64_t offset, bool& err) : ReadStream(path, err) {
+    ReadStream(std::string_view path, uint64_t offset, bool& err) : ReadStream(path, err) {
       if (err)
         return;
       FSeek(fp, offset, SEEK_SET);
@@ -117,11 +116,11 @@ public:
       while (length) {
         uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
         if (read(buf, thisSz) != thisSz) {
-          LogModule.report(logvisor::Error, FMT_STRING("unable to read enough from file"));
+          spdlog::error("unable to read enough from file");
           return written;
         }
         if (discio.write(buf, thisSz) != thisSz) {
-          LogModule.report(logvisor::Error, FMT_STRING("unable to write enough to disc"));
+          spdlog::error("unable to write enough to disc");
           return written;
         }
         length -= thisSz;
@@ -152,7 +151,7 @@ public:
   }
 };
 
-std::unique_ptr<IFileIO> NewFileIO(SystemStringView path, int64_t maxWriteSize) {
+std::unique_ptr<IFileIO> NewFileIO(std::string_view path, int64_t maxWriteSize) {
   return std::make_unique<FileIOFILE>(path, maxWriteSize);
 }
 

lib/FileIOWin32.cpp

@@ -1,28 +1,38 @@
-#include <cinttypes>
 #include <cstdint>
-#include <cstdio>
-#include <cstdlib>
+#if _WIN32
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#include <Windows.h>
+#endif
 
 #include "nod/IFileIO.hpp"
-#include "nod/Util.hpp"
+#include "Util.hpp"
 
-#include <logvisor/logvisor.hpp>
+#include <spdlog/spdlog.h>
+
+#include <nowide/convert.hpp>
+#include <nowide/stackstring.hpp>
 
 namespace nod {
 
 class FileIOWin32 : public IFileIO {
-  SystemString m_path;
+  std::wstring m_wpath;
   int64_t m_maxWriteSize;
 
 public:
-  FileIOWin32(SystemStringView path, int64_t maxWriteSize) : m_path(path), m_maxWriteSize(maxWriteSize) {}
+  FileIOWin32(std::string_view path, int64_t maxWriteSize)
+  : m_wpath(nowide::widen(path)), m_maxWriteSize(maxWriteSize) {}
 
   bool exists() override {
 #if !WINDOWS_STORE
-    HANDLE fp = CreateFileW(m_path.c_str(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
+    HANDLE fp = CreateFileW(m_wpath.data(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
                             FILE_ATTRIBUTE_NORMAL, nullptr);
 #else
-    HANDLE fp = CreateFile2(m_path.c_str(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
+    HANDLE fp = CreateFile2(m_path.get(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
 #endif
     if (fp == INVALID_HANDLE_VALUE)
       return false;
@@ -32,10 +42,10 @@ public:
 
   uint64_t size() override {
 #if !WINDOWS_STORE
-    HANDLE fp = CreateFileW(m_path.c_str(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
+    HANDLE fp = CreateFileW(m_wpath.data(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
                             FILE_ATTRIBUTE_NORMAL, nullptr);
 #else
-    HANDLE fp = CreateFile2(m_path.c_str(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
+    HANDLE fp = CreateFile2(m_path.get(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
 #endif
     if (fp == INVALID_HANDLE_VALUE)
       return 0;
@@ -51,28 +61,30 @@ public:
   struct WriteStream : public IFileIO::IWriteStream {
     HANDLE fp;
     int64_t m_maxWriteSize;
-    WriteStream(SystemStringView path, int64_t maxWriteSize, bool& err) : m_maxWriteSize(maxWriteSize) {
+    WriteStream(std::wstring_view wpath, int64_t maxWriteSize, bool& err) : m_maxWriteSize(maxWriteSize) {
 #if !WINDOWS_STORE
-      fp = CreateFileW(path.data(), GENERIC_WRITE, FILE_SHARE_WRITE, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
+      fp = CreateFileW(wpath.data(), GENERIC_WRITE, FILE_SHARE_WRITE, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
                        nullptr);
 #else
-      fp = CreateFile2(path.data(), GENERIC_WRITE, FILE_SHARE_WRITE, CREATE_ALWAYS, nullptr);
+      fp = CreateFile2(wpath.data(), GENERIC_WRITE, FILE_SHARE_WRITE, CREATE_ALWAYS, nullptr);
 #endif
       if (fp == INVALID_HANDLE_VALUE) {
-        LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to open '{}' for writing")), path);
+        const nowide::stackstring path(wpath.data(), wpath.data() + wpath.size());
+        spdlog::error("unable to open '{}' for writing", path.get());
         err = true;
       }
     }
-    WriteStream(SystemStringView path, uint64_t offset, int64_t maxWriteSize, bool& err)
+    WriteStream(std::wstring_view wpath, uint64_t offset, int64_t maxWriteSize, bool& err)
     : m_maxWriteSize(maxWriteSize) {
 #if !WINDOWS_STORE
-      fp = CreateFileW(path.data(), GENERIC_WRITE, FILE_SHARE_WRITE, nullptr, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL,
+      fp = CreateFileW(wpath.data(), GENERIC_WRITE, FILE_SHARE_WRITE, nullptr, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL,
                        nullptr);
 #else
-      fp = CreateFile2(path.data(), GENERIC_WRITE, FILE_SHARE_WRITE, OPEN_ALWAYS, nullptr);
+      fp = CreateFile2(wpath.data(), GENERIC_WRITE, FILE_SHARE_WRITE, OPEN_ALWAYS, nullptr);
 #endif
       if (fp == INVALID_HANDLE_VALUE) {
-        LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to open '{}' for writing")), path);
+        const nowide::stackstring path(wpath.data(), wpath.data() + wpath.size());
+        spdlog::error("unable to open '{}' for writing", path.get());
         err = true;
         return;
       }
@@ -87,8 +99,7 @@ public:
         LARGE_INTEGER res;
         SetFilePointerEx(fp, li, &res, FILE_CURRENT);
         if (res.QuadPart + int64_t(length) > m_maxWriteSize) {
-          LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("write operation exceeds file's {}-byte limit")),
-                           m_maxWriteSize);
+          spdlog::error("write operation exceeds file's {}-byte limit", m_maxWriteSize);
           return 0;
         }
       }
@@ -100,7 +111,7 @@ public:
   };
   std::unique_ptr<IWriteStream> beginWriteStream() const override {
     bool err = false;
-    auto ret = std::make_unique<WriteStream>(m_path, m_maxWriteSize, err);
+    auto ret = std::make_unique<WriteStream>(m_wpath, m_maxWriteSize, err);
 
     if (err) {
       return nullptr;
@@ -110,7 +121,7 @@ public:
   }
   std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const override {
     bool err = false;
-    auto ret = std::make_unique<WriteStream>(m_path, offset, m_maxWriteSize, err);
+    auto ret = std::make_unique<WriteStream>(m_wpath, offset, m_maxWriteSize, err);
 
     if (err) {
       return nullptr;
@@ -121,19 +132,20 @@ public:
 
   struct ReadStream : public IFileIO::IReadStream {
     HANDLE fp;
-    ReadStream(SystemStringView path, bool& err) {
+    ReadStream(std::wstring_view wpath, bool& err) {
 #if !WINDOWS_STORE
-      fp = CreateFileW(path.data(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
+      fp = CreateFileW(wpath.data(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
                        nullptr);
 #else
-      fp = CreateFile2(path.data(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
+      fp = CreateFile2(wpath.data(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
 #endif
       if (fp == INVALID_HANDLE_VALUE) {
         err = true;
-        LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("unable to open '{}' for reading")), path);
+        const nowide::stackstring path(wpath.data(), wpath.data() + wpath.size());
+        spdlog::error("unable to open '{}' for reading", path.get());
       }
     }
-    ReadStream(SystemStringView path, uint64_t offset, bool& err) : ReadStream(path, err) {
+    ReadStream(std::wstring_view wpath, uint64_t offset, bool& err) : ReadStream(wpath, err) {
       if (err)
         return;
       LARGE_INTEGER lioffset;
@@ -163,11 +175,11 @@ public:
       while (length) {
         uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
         if (read(buf, thisSz) != thisSz) {
-          LogModule.report(logvisor::Error, FMT_STRING("unable to read enough from file"));
+          spdlog::error("unable to read enough from file");
           return written;
         }
         if (discio.write(buf, thisSz) != thisSz) {
-          LogModule.report(logvisor::Error, FMT_STRING("unable to write enough to disc"));
+          spdlog::error("unable to write enough to disc");
           return written;
         }
         length -= thisSz;
@@ -179,7 +191,7 @@ public:
 
   std::unique_ptr<IReadStream> beginReadStream() const override {
     bool err = false;
-    auto ret = std::make_unique<ReadStream>(m_path, err);
+    auto ret = std::make_unique<ReadStream>(m_wpath, err);
 
     if (err) {
       return nullptr;
@@ -190,7 +202,7 @@ public:
 
   std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const override {
     bool err = false;
-    auto ret = std::make_unique<ReadStream>(m_path, offset, err);
+    auto ret = std::make_unique<ReadStream>(m_wpath, offset, err);
 
     if (err) {
       return nullptr;
@@ -200,7 +212,7 @@ public:
   }
 };
 
-std::unique_ptr<IFileIO> NewFileIO(SystemStringView path, int64_t maxWriteSize) {
+std::unique_ptr<IFileIO> NewFileIO(std::string_view path, int64_t maxWriteSize) {
   return std::make_unique<FileIOWin32>(path, maxWriteSize);
 }
 

lib/IFileIO.cpp

@@ -0,0 +1,48 @@
+#include "nod/IFileIO.hpp"
+#include "Util.hpp"
+#include <spdlog/spdlog.h>
+
+namespace nod {
+uint64_t IFileIO::IWriteStream::copyFromDisc(IPartReadStream& discio, uint64_t length) {
+  uint64_t read = 0;
+  uint8_t buf[0x7c00];
+  while (length) {
+    uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
+    uint64_t readSz = discio.read(buf, thisSz);
+    if (thisSz != readSz) {
+      spdlog::error("unable to read enough from disc");
+      return read;
+    }
+    if (write(buf, readSz) != readSz) {
+      spdlog::error("unable to write in file");
+      return read;
+    }
+    length -= thisSz;
+    read += thisSz;
+  }
+  return read;
+}
+
+uint64_t IFileIO::IWriteStream::copyFromDisc(IPartReadStream& discio, uint64_t length,
+                                             const std::function<void(float)>& prog) {
+  uint64_t read = 0;
+  uint8_t buf[0x7c00];
+  uint64_t total = length;
+  while (length) {
+    uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
+    uint64_t readSz = discio.read(buf, thisSz);
+    if (thisSz != readSz) {
+      spdlog::error("unable to read enough from disc");
+      return read;
+    }
+    if (write(buf, readSz) != readSz) {
+      spdlog::error("unable to write in file");
+      return read;
+    }
+    length -= thisSz;
+    read += thisSz;
+    prog(read / float(total));
+  }
+  return read;
+}
+} // namespace nod

lib/Util.cpp

@@ -0,0 +1,71 @@
+#include "Util.hpp"
+
+#include <spdlog/spdlog.h>
+
+#if _WIN32
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#include <Windows.h>
+#endif
+
+namespace nod {
+FILE* Fopen(const char* path, const char* mode, FileLockType lock) {
+#if _WIN32
+  const nowide::wstackstring wpath(path);
+  const nowide::wshort_stackstring wmode(mode);
+  FILE* fp = _wfopen(wpath.get(), wmode.get());
+  if (!fp)
+    return nullptr;
+#else
+  FILE* fp = fopen(path, mode);
+  if (!fp)
+    return nullptr;
+#endif
+
+  if (lock != FileLockType::None) {
+#if _WIN32
+    OVERLAPPED ov = {};
+    LockFileEx((HANDLE)(uintptr_t)_fileno(fp), (lock == FileLockType::Write) ? LOCKFILE_EXCLUSIVE_LOCK : 0, 0, 0, 1,
+               &ov);
+#else
+    if (flock(fileno(fp), ((lock == FileLockType::Write) ? LOCK_EX : LOCK_SH) | LOCK_NB))
+      spdlog::error("flock {}: {}", path, strerror(errno));
+#endif
+  }
+
+  return fp;
+}
+
+bool CheckFreeSpace(const char* path, size_t reqSz) {
+#if _WIN32
+  ULARGE_INTEGER freeBytes;
+  const nowide::wstackstring wpath(path);
+  std::array<wchar_t, 1024> buf{};
+  wchar_t* end = nullptr;
+  DWORD ret = GetFullPathNameW(wpath.get(), 1024, buf.data(), &end);
+  if (ret == 0 || ret > 1024) {
+    spdlog::error("GetFullPathNameW {}", path);
+    return false;
+  }
+  if (end != nullptr) {
+    end[0] = L'\0';
+  }
+  if (!GetDiskFreeSpaceExW(buf.data(), &freeBytes, nullptr, nullptr)) {
+    spdlog::error("GetDiskFreeSpaceExW {}: {}", path, GetLastError());
+    return false;
+  }
+  return reqSz < freeBytes.QuadPart;
+#else
+  struct statvfs svfs;
+  if (statvfs(path, &svfs)) {
+    spdlog::error("statvfs {}: {}", path, strerror(errno));
+    return false;
+  }
+  return reqSz < svfs.f_frsize * svfs.f_bavail;
+#endif
+}
+} // namespace nod

lib/Util.hpp

@@ -0,0 +1,126 @@
+#pragma once
+
+#if _WIN32
+#include <array>
+#include <cwctype>
+#include <direct.h>
+#include <nowide/stackstring.hpp>
+#include <winapifamily.h>
+#if defined(WINAPI_FAMILY) && WINAPI_FAMILY != WINAPI_FAMILY_DESKTOP_APP
+#define WINDOWS_STORE 1
+#else
+#define WINDOWS_STORE 0
+#endif
+#else
+#include <cctype>
+#include <cerrno>
+#include <sys/file.h>
+#include <sys/param.h>
+#include <sys/statvfs.h>
+#include <unistd.h>
+#endif
+#include <sys/stat.h>
+
+#include <algorithm>
+#include <cstring>
+#include <string>
+#include <string_view>
+#ifdef _MSC_VER
+#pragma warning(disable : 4996)
+
+#include <sys/stat.h>
+
+#if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG)
+#define S_ISREG(m) (((m)&S_IFMT) == S_IFREG)
+#endif
+
+#if !defined(S_ISDIR) && defined(S_IFMT) && defined(S_IFDIR)
+#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
+#endif
+
+#if !defined(S_ISLNK)
+#define S_ISLNK(m) 0
+#endif
+#endif
+
+#undef min
+#undef max
+
+namespace nod {
+/* define our own min/max to avoid MSVC BS */
+template <typename T>
+constexpr T min(T a, T b) {
+  return a < b ? a : b;
+}
+template <typename T>
+constexpr T max(T a, T b) {
+  return a > b ? a : b;
+}
+
+/* template-based div for flexible typing and avoiding a library call */
+template <typename T>
+constexpr auto div(T a, T b) {
+  struct DivTp {
+    T quot, rem;
+  };
+  return DivTp{a / b, a % b};
+}
+
+/* filesystem char type */
+#if _WIN32
+static inline int Mkdir(const char* path, int) {
+  const nowide::wstackstring str(path);
+  return _wmkdir(str.get());
+}
+
+using Sstat = struct ::_stat64;
+static inline int Stat(const char* path, Sstat* statout) {
+  const nowide::wstackstring wpath(path);
+  return _wstat64(wpath.get(), statout);
+}
+#else
+static inline int Mkdir(const char* path, mode_t mode) { return mkdir(path, mode); }
+
+typedef struct stat Sstat;
+static inline int Stat(const char* path, Sstat* statout) { return stat(path, statout); }
+#endif
+
+static inline int StrCaseCmp(const char* str1, const char* str2) {
+#ifdef _MSC_VER
+  return _stricmp(str1, str2);
+#else
+  return strcasecmp(str1, str2);
+#endif
+}
+
+#ifndef ROUND_UP_32
+#define ROUND_UP_32(val) (((val) + 31) & ~31)
+#define ROUND_UP_16(val) (((val) + 15) & ~15)
+#endif
+
+enum class FileLockType { None = 0, Read, Write };
+FILE* Fopen(const char* path, const char* mode, FileLockType lock = FileLockType::None);
+
+static inline int FSeek(FILE* fp, int64_t offset, int whence) {
+#if _WIN32
+  return _fseeki64(fp, offset, whence);
+#elif __APPLE__ || __FreeBSD__
+  return fseeko(fp, offset, whence);
+#else
+  return fseeko64(fp, offset, whence);
+#endif
+}
+
+static inline int64_t FTell(FILE* fp) {
+#if _WIN32
+  return _ftelli64(fp);
+#elif __APPLE__ || __FreeBSD__
+  return ftello(fp);
+#else
+  return ftello64(fp);
+#endif
+}
+
+bool CheckFreeSpace(const char* path, size_t reqSz);
+
+} // namespace nod

lib/aes.cpp

@@ -4,7 +4,7 @@
 
 #if _WIN32
 #include <intrin.h>
-#else
+#elif __x86_64__
 #include <cpuid.h>
 #endif
 

lib/nod.cpp

@@ -6,19 +6,18 @@
 #include "nod/DiscGCN.hpp"
 #include "nod/DiscWii.hpp"
 
+#include <spdlog/spdlog.h>
+
 namespace nod {
+std::unique_ptr<IDiscIO> NewDiscIOISO(std::string_view path);
+std::unique_ptr<IDiscIO> NewDiscIOWBFS(std::string_view path);
+std::unique_ptr<IDiscIO> NewDiscIONFS(std::string_view path);
 
-logvisor::Module LogModule("nod");
-
-std::unique_ptr<IDiscIO> NewDiscIOISO(SystemStringView path);
-std::unique_ptr<IDiscIO> NewDiscIOWBFS(SystemStringView path);
-std::unique_ptr<IDiscIO> NewDiscIONFS(SystemStringView path);
-
-std::unique_ptr<DiscBase> OpenDiscFromImage(SystemStringView path, bool& isWii) {
+std::unique_ptr<DiscBase> OpenDiscFromImage(std::string_view path, bool& isWii) {
   /* Temporary file handle to determine image type */
   std::unique_ptr<IFileIO> fio = NewFileIO(path);
   if (!fio->exists()) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("Unable to open '{}'")), path);
+    spdlog::error("Unable to open '{}'", path);
     return {};
   }
   std::unique_ptr<IFileIO::IReadStream> rs = fio->beginReadStream();
@@ -29,19 +28,19 @@ std::unique_ptr<DiscBase> OpenDiscFromImage(SystemStringView path, bool& isWii)
   std::unique_ptr<IDiscIO> discIO;
   uint32_t magic = 0;
   if (rs->read(&magic, 4) != 4) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("Unable to read magic from '{}'")), path);
+    spdlog::error("Unable to read magic from '{}'", path);
     return {};
   }
 
-  using SignedSize = std::make_signed<SystemString::size_type>::type;
-  const auto dotPos = SignedSize(path.rfind(_SYS_STR('.')));
-  const auto slashPos = SignedSize(path.find_last_of(_SYS_STR("/\\")));
+  using SignedSize = std::make_signed<std::string::size_type>::type;
+  const auto dotPos = SignedSize(path.rfind('.'));
+  const auto slashPos = SignedSize(path.find_last_of("/\\"));
   if (magic == nod::SBig((uint32_t)'WBFS')) {
     discIO = NewDiscIOWBFS(path);
     isWii = true;
   } else if (path.size() > 4 && dotPos != -1 && dotPos > slashPos &&
-             !path.compare(slashPos + 1, 4, _SYS_STR("hif_")) &&
-             !path.compare(dotPos, path.size() - dotPos, _SYS_STR(".nfs"))) {
+             !path.compare(slashPos + 1, 4, "hif_") &&
+             !path.compare(dotPos, path.size() - dotPos, ".nfs")) {
     discIO = NewDiscIONFS(path);
     isWii = true;
   } else {
@@ -60,7 +59,7 @@ std::unique_ptr<DiscBase> OpenDiscFromImage(SystemStringView path, bool& isWii)
   }
 
   if (!discIO) {
-    LogModule.report(logvisor::Error, FMT_STRING(_SYS_STR("'{}' is not a valid image")), path);
+    spdlog::error("'{}' is not a valid image", path);
     return {};
   }
 
@@ -79,7 +78,7 @@ std::unique_ptr<DiscBase> OpenDiscFromImage(SystemStringView path, bool& isWii)
   return ret;
 }
 
-std::unique_ptr<DiscBase> OpenDiscFromImage(SystemStringView path) {
+std::unique_ptr<DiscBase> OpenDiscFromImage(std::string_view path) {
   bool isWii;
   return OpenDiscFromImage(path, isWii);
 }