Today was one hell of a day.

.gitattributes

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+# Set the default behavior for all files.
+* text=auto eol=lf
+
+# Normalized and converts to native line endings on checkout.
+*.c text
+*.cc text
+*.cxx
+*.cpp text
+*.h text
+*.hxx text
+*.hpp text

.gitignore

@@ -1,4 +1,6 @@
 .vscode/
 build/
-*.cbp
-*.layout
+.clang-format
+.clang-tidy
+.editorconfig
+*.lst

.gitmodules

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+[submodule "FsLib"]
+	path = FsLib
+	url = https://github.com/J-D-K/FsLib.git

JKSM/Makefile

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+#---------------------------------------------------------------------------------
+.SUFFIXES:
+#---------------------------------------------------------------------------------
+
+ifeq ($(strip $(DEVKITARM)),)
+$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
+endif
+
+TOPDIR ?= $(CURDIR)
+include $(DEVKITARM)/3ds_rules
+
+#---------------------------------------------------------------------------------
+# TARGET is the name of the output
+# BUILD is the directory where object files & intermediate files will be placed
+# SOURCES is a list of directories containing source code
+# DATA is a list of directories containing data files
+# INCLUDES is a list of directories containing header files
+# GRAPHICS is a list of directories containing graphics files
+# GFXBUILD is the directory where converted graphics files will be placed
+#   If set to $(BUILD), it will statically link in the converted
+#   files as if they were data files.
+#
+# NO_SMDH: if set to anything, no SMDH file is generated.
+# ROMFS is the directory which contains the RomFS, relative to the Makefile (Optional)
+# APP_TITLE is the name of the app stored in the SMDH file (Optional)
+# APP_DESCRIPTION is the description of the app stored in the SMDH file (Optional)
+# APP_AUTHOR is the author of the app stored in the SMDH file (Optional)
+# ICON is the filename of the icon (.png), relative to the project folder.
+#   If not set, it attempts to use one of the following (in this order):
+#     - <Project name>.png
+#     - icon.png
+#     - <libctru folder>/default_icon.png
+#---------------------------------------------------------------------------------
+TARGET		:=	JKSM
+BUILD		:=	build
+SOURCES		:=	source source/SDL source/Data source/UI source/AppStates
+DATA		:=	data
+INCLUDES	:=	include ../FsLib/3DS/FsLib/include
+#GRAPHICS	:=	gfx
+#GFXBUILD	:=	$(BUILD)
+ROMFS		:=	romfs
+#GFXBUILD	:=	$(ROMFS)/gfx
+APP_TITLE	:= JK's Save Manager
+APP_DESCRIPTION	:=	The 3DS save manager
+APP_AUTHOR	:= JK
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft
+
+CFLAGS	:=	-g -Wall -O2 -mword-relocations `sdl-config --cflags` \
+			`freetype-config --cflags` -fomit-frame-pointer -ffunction-sections \
+			$(ARCH)
+
+CFLAGS	+=	$(INCLUDE) -D__3DS__
+
+CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions -Wno-psabi -std=c++23
+
+ASFLAGS	:=	-g $(ARCH)
+LDFLAGS	=	-specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
+
+LIBS	:= 	../../FsLib/3DS/FsLib/lib/libFsLib.a -lSDL_image `sdl-config --libs` \
+			`freetype-config --libs` -ljson-c -lcurl -lmbedtls -lmbedcrypto \
+			-lmbedx509 -lminizip -ljpeg -lpng -lctru -lz -lm
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS	:= $(CTRULIB) $(PORTLIBS)
+
+
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+
+export OUTPUT	:=	$(CURDIR)/$(TARGET)
+export TOPDIR	:=	$(CURDIR)
+
+export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+			$(foreach dir,$(GRAPHICS),$(CURDIR)/$(dir)) \
+			$(foreach dir,$(DATA),$(CURDIR)/$(dir))
+
+export DEPSDIR	:=	$(CURDIR)/$(BUILD)
+
+CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
+CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
+SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
+PICAFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.v.pica)))
+SHLISTFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.shlist)))
+GFXFILES	:=	$(foreach dir,$(GRAPHICS),$(notdir $(wildcard $(dir)/*.t3s)))
+BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+
+#---------------------------------------------------------------------------------
+# use CXX for linking C++ projects, CC for standard C
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(CPPFILES)),)
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CC)
+#---------------------------------------------------------------------------------
+else
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CXX)
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
+
+#---------------------------------------------------------------------------------
+ifeq ($(GFXBUILD),$(BUILD))
+#---------------------------------------------------------------------------------
+export T3XFILES :=  $(GFXFILES:.t3s=.t3x)
+#---------------------------------------------------------------------------------
+else
+#---------------------------------------------------------------------------------
+export ROMFS_T3XFILES	:=	$(patsubst %.t3s, $(GFXBUILD)/%.t3x, $(GFXFILES))
+export T3XHFILES		:=	$(patsubst %.t3s, $(BUILD)/%.h, $(GFXFILES))
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
+
+export OFILES_SOURCES 	:=	$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
+
+export OFILES_BIN	:=	$(addsuffix .o,$(BINFILES)) \
+			$(PICAFILES:.v.pica=.shbin.o) $(SHLISTFILES:.shlist=.shbin.o) \
+			$(addsuffix .o,$(T3XFILES))
+
+export OFILES := $(OFILES_BIN) $(OFILES_SOURCES)
+
+export HFILES	:=	$(PICAFILES:.v.pica=_shbin.h) $(SHLISTFILES:.shlist=_shbin.h) \
+			$(addsuffix .h,$(subst .,_,$(BINFILES))) \
+			$(GFXFILES:.t3s=.h)
+
+export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
+			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+			-I$(CURDIR)/$(BUILD)
+
+export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)
+
+export _3DSXDEPS	:=	$(if $(NO_SMDH),,$(OUTPUT).smdh)
+
+ifeq ($(strip $(ICON)),)
+	icons := $(wildcard *.png)
+	ifneq (,$(findstring $(TARGET).png,$(icons)))
+		export APP_ICON := $(TOPDIR)/$(TARGET).png
+	else
+		ifneq (,$(findstring icon.png,$(icons)))
+			export APP_ICON := $(TOPDIR)/icon.png
+		endif
+	endif
+else
+	export APP_ICON := $(TOPDIR)/$(ICON)
+endif
+
+ifeq ($(strip $(NO_SMDH)),)
+	export _3DSXFLAGS += --smdh=$(CURDIR)/$(TARGET).smdh
+endif
+
+ifneq ($(ROMFS),)
+	export _3DSXFLAGS += --romfs=$(CURDIR)/$(ROMFS)
+endif
+
+.PHONY: all clean
+
+#---------------------------------------------------------------------------------
+all: $(BUILD) $(GFXBUILD) $(DEPSDIR) $(ROMFS_T3XFILES) $(T3XHFILES)
+	@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+
+$(BUILD):
+	@mkdir -p $@
+
+ifneq ($(GFXBUILD),$(BUILD))
+$(GFXBUILD):
+	@mkdir -p $@
+endif
+
+ifneq ($(DEPSDIR),$(BUILD))
+$(DEPSDIR):
+	@mkdir -p $@
+endif
+
+#---------------------------------------------------------------------------------
+
+send: all
+	@3dslink $(TARGET).3dsx
+
+#---------------------------------------------------------------------------------
+clean:
+	@echo clean ...
+	@rm -fr $(BUILD) $(TARGET).3dsx $(OUTPUT).smdh $(TARGET).elf $(GFXBUILD)
+
+#---------------------------------------------------------------------------------
+$(GFXBUILD)/%.t3x	$(BUILD)/%.h	:	%.t3s
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	@tex3ds -i $< -H $(BUILD)/$*.h -d $(DEPSDIR)/$*.d -o $(GFXBUILD)/$*.t3x
+
+#---------------------------------------------------------------------------------
+else
+
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+$(OUTPUT).3dsx	:	$(OUTPUT).elf $(_3DSXDEPS)
+
+$(OFILES_SOURCES) : $(HFILES)
+
+$(OUTPUT).elf	:	$(OFILES)
+
+#---------------------------------------------------------------------------------
+# you need a rule like this for each extension you use as binary data
+#---------------------------------------------------------------------------------
+%.bin.o	%_bin.h :	%.bin
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	@$(bin2o)
+
+#---------------------------------------------------------------------------------
+.PRECIOUS	:	%.t3x %.shbin
+#---------------------------------------------------------------------------------
+%.t3x.o	%_t3x.h :	%.t3x
+#---------------------------------------------------------------------------------
+	$(SILENTMSG) $(notdir $<)
+	$(bin2o)
+
+#---------------------------------------------------------------------------------
+%.shbin.o %_shbin.h : %.shbin
+#---------------------------------------------------------------------------------
+	$(SILENTMSG) $(notdir $<)
+	$(bin2o)
+
+-include $(DEPSDIR)/*.d
+
+#---------------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------------

JKSM/include/AppStates/AppState.hpp

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+#pragma once
+#include "SDL/SDL.hpp"
+
+class AppState
+{
+    public:
+        AppState(void) = default;
+        virtual ~AppState() {};
+
+        virtual void Update(void) = 0;
+        virtual void DrawTop(SDL_Surface *Target) = 0;
+        virtual void DrawBottom(SDL_Surface *Target) = 0;
+
+        // I usually avoid having this stuff in headers now, but here I don't care.
+        bool IsActive(void) const
+        {
+            return m_IsActive;
+        }
+
+        bool HasFocus(void) const
+        {
+            return m_HasFocus;
+        }
+
+        void Deactivate(void)
+        {
+            m_IsActive = false;
+        }
+
+        void TakeFocus(void)
+        {
+            m_HasFocus = false;
+        }
+
+        void GiveFocus(void)
+        {
+            m_HasFocus = true;
+        }
+
+    private:
+        // Whether state is active or can be purged.
+        bool m_IsActive = true;
+        // Whether a state is at the back of the vector and has focus.
+        bool m_HasFocus = false;
+};

JKSM/include/AppStates/TitleSelectionState.hpp

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+#pragma once
+#include "AppStates/AppState.hpp"
+#include "Data/Data.hpp"
+#include "SDL/SDL.hpp"
+#include "UI/TitleView.hpp"
+#include <memory>
+
+class TitleSelectionState : public AppState
+{
+    public:
+        TitleSelectionState(Data::SaveDataType SaveType);
+        ~TitleSelectionState() {};
+
+        void Update(void);
+        void DrawTop(SDL_Surface *Target);
+        void DrawBottom(SDL_Surface *Target);
+
+    private:
+        // To do: Maybe not a pointer...
+        std::unique_ptr<UI::TitleView> m_TitleView;
+        // Noto for text
+        SDL::SharedFont m_Noto;
+};

JKSM/include/Data/Data.hpp

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+#pragma once
+#include "Data/TitleData.hpp"
+#include <vector>
+
+namespace Data
+{
+    // Loads data from cache or system if cache isn't present.
+    bool Initialize(void);
+    // This gets a vector of the titles with the corresponding save type.
+    void GetTitlesWithType(SaveDataType SaveType, std::vector<Data::TitleData *> &Out);
+} // namespace Data

JKSM/include/Data/SMDH.hpp

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+#pragma once
+#include <3ds.h>
+#include <stdint.h>
+
+namespace Data
+{
+    // This is from the 3ds homebrew menu.
+    typedef struct
+    {
+            uint32_t magic;
+            uint16_t version;
+            uint16_t reserved;
+    } smdhHeader_s;
+
+    typedef struct
+    {
+            uint16_t shortDescription[0x40];
+            uint16_t longDescription[0x80];
+            uint16_t publisher[0x40];
+    } smdhTitle_s;
+
+    typedef struct
+    {
+            uint8_t gameRatings[0x10];
+            uint32_t regionLock;
+            uint8_t matchMakerId[0xC];
+            uint32_t flags;
+            uint16_t eulaVersion;
+            uint16_t reserved;
+            uint16_t defaultFrame;
+            uint32_t cecId;
+    } smdhSettings_s;
+
+    typedef struct
+    {
+            smdhHeader_s header;
+            smdhTitle_s applicationTitles[16];
+            smdhSettings_s settings;
+            uint8_t reserved[0x8];
+            uint8_t smallIconData[0x480];
+            uint16_t bigIconData[0x900];
+    } SMDH;
+    // Attempts to load SMDH. Returns false on failure.
+    bool LoadSMDH(uint64_t TitleID, FS_MediaType MediaType, SMDH &Out);
+} // namespace Data