Initial commit of app to dump shared system font.

.gitignore

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+build/
+*.3dsx
+*.3ds
+*.elf
+
+.DS_Store
+
+.swp

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
+# SPECS is the directory containing the important build and link files
+#---------------------------------------------------------------------------------
+export TARGET		:=	$(shell basename $(CURDIR))
+BUILD		:=	build
+SOURCES		:=	source source/utils source/utils/shared_font
+DATA		:=	data
+INCLUDES	:=	source #include
+
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH	:=	-march=armv6k -mtune=mpcore
+
+CFLAGS	:=	-g -Wall -O2 -mword-relocations -save-temps \
+			-fomit-frame-pointer -ffast-math -mfloat-abi=softfp \
+			$(ARCH)
+
+CFLAGS	+=	$(INCLUDE) -DARM11 -D_3DS
+
+CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
+
+ASFLAGS	:=	-g $(ARCH)
+LDFLAGS	=	-specs=3dsx.specs -g $(ARCH) \
+			-Wl,-Map,$(TARGET).map
+
+LIBS	:= -lctru -lm
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS	:= $(CTRULIB)
+ 
+  
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+ 
+export OUTPUT	:=	$(CURDIR)/$(TARGET)
+export TOPDIR	:=	$(CURDIR)
+
+export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+			$(foreach dir,$(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)))
+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
+#---------------------------------------------------------------------------------
+
+export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
+			$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
+
+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)
+
+.PHONY: $(BUILD) clean all
+ 
+#---------------------------------------------------------------------------------
+all: $(BUILD)
+
+$(BUILD):
+	@[ -d $@ ] || mkdir -p $@
+	@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+ 
+#---------------------------------------------------------------------------------
+clean:
+	@echo clean ...
+	@rm -fr $(BUILD) $(TARGET).3dsx $(TARGET).elf
+ 
+ 
+#---------------------------------------------------------------------------------
+else
+ 
+DEPENDS	:=	$(OFILES:.o=.d)
+ 
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+$(OUTPUT).3dsx	:	$(OUTPUT).elf
+$(OUTPUT).elf	:	$(OFILES)
+
+#---------------------------------------------------------------------------------
+# you need a rule like this for each extension you use as binary data 
+#---------------------------------------------------------------------------------
+%.bin.o	:	%.bin
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	@$(bin2o)
+
+# not the right way to do this
+#---------------------------------------------------------------------------------
+%.vsh.o	:	%.vsh
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	@python $(AEMSTRO)/aemstro_as.py $< ../$(notdir $<).shbin
+	@bin2s ../$(notdir $<).shbin | arm-none-eabi-as -o $@
+	@echo "extern const u8" `(echo $(notdir $<).shbin | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(notdir $<).shbin | tr . _)`.h
+	@echo "extern const u8" `(echo $(notdir $<).shbin | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(notdir $<).shbin | tr . _)`.h
+	@echo "extern const u32" `(echo $(notdir $<).shbin | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(notdir $<).shbin | tr . _)`.h
+	@rm ../$(notdir $<).shbin
+
+-include $(DEPENDS)
+ 
+#---------------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------------

send-exec.py

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+#!/usr/bin/env python
+
+### TO USE:
+#### Press Y on the HBMenu (opens the NetLoader)
+#### Change host/port combination
+#### Run the script
+
+import socket
+import sys
+import time
+ 
+TCP_IP = '192.168.xx.xx'
+TCP_PORT = 9000
+MESSAGE = open("citra-3dsutils.3dsx", "rb").read();
+ 
+s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+s.connect((TCP_IP, TCP_PORT))
+s.send(MESSAGE)
+time.sleep(10)
+s.close()
+

source/font.cpp

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+#include <3ds.h>
+#include "font.h"
+
+font_s fontDefault = {
+    font1Data,
+    font1Desc,
+    16,
+    { 0xFF, 0xFF, 0xFF }
+};

source/font.h

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+#pragma once
+
+struct Glyph {
+    // Glyph representation
+    char c;
+
+    // x and y origin of the character.
+    int x, y;
+
+    // width and height in pixels.
+    int w, h;
+
+    // x and y offset
+    int xo, yo;
+
+    // Pixels after this character to begin
+    // drawing the next one.
+    int xa;
+
+    // Glyph data.
+    u8* data;
+};
+
+struct font_s {
+    u8* data;
+    Glyph* desc;
+    u8 height;
+    u8 color[3];
+};
+
+extern u8 font1Data[];
+extern Glyph font1Desc[];
+
+extern font_s fontDefault;

source/main.cpp

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+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <3ds.h>
+
+#include "output.h"
+#include "utils/shared_font/shared_font.h"
+
+static unsigned int util_counter = 0;
+static void (*utils[]) (void) = {
+    SharedFont::Dump,
+};
+
+int main()
+{
+    srvInit();
+    aptInit();
+    hidInit(NULL);
+    fsInit();
+    gfxInit();
+    gfxSet3D(false);
+
+    clearScreens();
+    print(GFX_TOP, "Press A to begin...\n");
+
+    while (aptMainLoop()) {
+        drawFrames();
+
+        hidScanInput();
+        if (hidKeysDown() & KEY_START) {
+            break;
+        } else if (hidKeysDown() & KEY_A) {
+            clearScreen(GFX_TOP);
+
+            if (util_counter < (sizeof(utils) / sizeof(utils[0]))) {
+                utils[util_counter]();
+                util_counter++;
+            } else {
+                break;
+            }
+
+            print(GFX_TOP, "\n");
+            print(GFX_TOP, "Press A to continue...\n");
+        }
+
+        gspWaitForEvent(GSPEVENT_VBlank0, false);
+    }
+
+    clearScreens();
+
+    gfxExit();
+    fsExit();
+    hidExit();
+    aptExit();
+    srvExit();
+    return 0;
+}

source/output.cpp

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+#include "output.h"
+
+#include <algorithm>
+#include <string>
+#include <cstring>
+#include <cmath>
+#include <cstdarg>
+#include <cstdio>
+
+#include <3ds.h>
+
+#include "text.h"
+
+static std::string bufferTop;
+static std::string bufferBottom;
+
+static int countLines(const std::string& str)
+{
+    if (str.empty())
+        return 0;
+
+    return 1 + std::count_if(str.begin(), str.end(), [](char c) { return c == '\n'; });
+}
+
+static void deleteFirstLine(std::string* str)
+{
+    if (str->empty())
+        return;
+    
+    size_t linebreak = str->find_first_of('\n');
+    
+    if (linebreak == std::string::npos || linebreak + 1 > str->length()) {
+        *str = {};
+        return;
+    }
+    
+    *str = str->substr(linebreak + 1);
+}
+
+static void drawFrame(gfxScreen_t screen, char b, char g, char r)
+{
+    int screenHeight = 240;
+    int screenWidth = (screen == GFX_TOP) ? 400 : 320;
+    std::string& textBuffer = (screen == GFX_TOP) ? bufferTop : bufferBottom;
+
+    u8* bufAdr = gfxGetFramebuffer(screen, GFX_LEFT, nullptr, nullptr);
+    for (int i = 0; i < screenWidth * screenHeight * 3; i += 3) {
+        bufAdr[i]   = b;
+        bufAdr[i+1] = g;
+        bufAdr[i+2] = r;
+    }
+
+    int lines = countLines(textBuffer);
+    while (lines > (screenHeight / fontDefault.height - 3)) {
+        deleteFirstLine(&textBuffer);
+        lines--;
+    }
+    gfxDrawText(screen, GFX_LEFT, nullptr, textBuffer, screenHeight - fontDefault.height * 3, 10);
+}
+
+void drawFrames()
+{
+    drawFrame(GFX_TOP, 0x88, 0x66, 0x00);
+    drawFrame(GFX_BOTTOM, 0x00, 0x00, 0x00);
+    gfxFlushBuffers();
+    gfxSwapBuffers();
+}
+
+void print(gfxScreen_t screen, const char* format, ...)
+{
+    std::string& textBuffer = (screen == GFX_TOP) ? bufferTop : bufferBottom;
+    
+    va_list arguments;
+    char *vaStr;
+
+    va_start(arguments, format);
+    vasprintf(&vaStr, format, arguments);
+    va_end(arguments);
+
+    textBuffer += std::string(vaStr);
+    svcOutputDebugString(vaStr, strlen(vaStr));
+    free(vaStr);
+
+    drawFrames();
+}
+
+void clearScreen(gfxScreen_t screen)
+{
+    std::string& textBuffer = (screen == GFX_TOP) ? bufferTop : bufferBottom;
+    textBuffer.clear();
+    drawFrames();
+}
+
+void clearScreens()
+{
+    clearScreen(GFX_TOP);
+    clearScreen(GFX_BOTTOM);
+}

source/output.h

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+#pragma once
+
+#include <3ds.h>
+
+void drawFrames();
+void print(gfxScreen_t screen, const char* format, ...);
+void clearScreen(gfxScreen_t screen);
+void clearScreens();

source/text.cpp

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+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <3ds.h>
+#include "text.h"
+
+#include "font.h"
+
+//this code is not meant to be readable
+int drawCharacter(u8* fb, font_s* font, char c, s16 x, s16 y, u16 w, u16 h)
+{
+    Glyph* cd = &font->desc[(int)c];
+
+    if (!cd->data)
+        return 0;
+
+    x += cd->xo; y += font->height - cd->yo - cd->h;
+
+    if (x < 0 || x + cd->w >= w || y < -cd->h || y >= h + cd->h)
+        return 0;
+
+    u8* charData = cd->data;
+    s16 cy = y, ch = cd->h, cyo = 0;
+
+    if (y < 0) {
+        cy = 0;
+        cyo = -y;
+        ch = cd->h-cyo;
+    } else if (y + ch > h) {
+        ch = h - y;
+    }
+
+    fb += (x * h + cy) * 3;
+    const u8 r = font->color[0];
+    const u8 g = font->color[1];
+    const u8 b = font->color[2];
+
+    for (int i = 0; i < cd->w; i++) {
+        charData += cyo;
+        for (int j = 0; j < ch; j++) {
+            u8 v = *(charData++);
+            if (v) {
+                fb[0] = (fb[0] * (0xFF - v) + (b * v)) >> 8;
+                fb[1] = (fb[1] * (0xFF - v) + (g * v)) >> 8;
+                fb[2] = (fb[2] * (0xFF - v) + (r * v)) >> 8;
+            }
+            fb += 3;
+        }
+        charData += (cd->h - (cyo + ch));
+        fb += (h - ch) * 3;
+    }
+    return cd->xa;
+}
+
+void drawString(u8* fb, font_s* f, const std::string& str, s16 x, s16 y, u16 w, u16 h)
+{
+    if (!f || !fb)
+        return;
+
+    int dx = 0, dy = 0;
+    for (const char& c : str)
+    {
+        dx += drawCharacter(fb, f, c, x + dx, y + dy, w, h);
+        if (c == '\n') {
+            dx = 0;
+            dy -= f->height;
+        }
+    }
+}
+
+void gfxDrawText(gfxScreen_t screen, gfx3dSide_t side, font_s* font, const std::string& str, s16 x, s16 y)
+{
+    if (!font)
+        font = &fontDefault;
+
+    u16 fbWidth, fbHeight;
+    u8* fbAdr = gfxGetFramebuffer(screen, side, &fbWidth, &fbHeight);
+
+    drawString(fbAdr, font, str, y, x, fbHeight, fbWidth);
+}

source/text.h

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+#pragma once
+
+#include <string>
+
+#include "font.h"
+
+int drawCharacter(u8* fb, font_s* f, char c, s16 x, s16 y, u16 w, u16 h);
+void drawString(u8* fb, font_s* f, const std::string& str, s16 x, s16 y, u16 w, u16 h);
+void gfxDrawText(gfxScreen_t screen, gfx3dSide_t side, font_s* f, const std::string& str, s16 x, s16 y);

source/utils/shared_font/shared_font.cpp

@@ -0,0 +1,61 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#include <3ds.h>
+
+#include "output.h"
+#include "utils/shared_font/shared_font.h"
+
+namespace SharedFont {
+
+static const u32 SHARED_FONT_ADDR = 0x18000000;
+static const u32 SHARED_FONT_SIZE = 0x300000;
+
+void Dump() {
+    static const char* path = "/shared_font.bin";
+    
+    print(GFX_TOP, "Dumping shared system font (%s)... ", path);
+    
+    // Connect to APT service...
+    
+    Handle apt_handle;
+    srvGetServiceHandle(&apt_handle, "APT:U");
+    u32* cmdbuf=getThreadCommandBuffer();
+    
+    // Call APT::GetSharedFont function to load font into memory...
+    
+    cmdbuf[0] = 0x00440000;
+    svcSendSyncRequest(apt_handle);
+    Handle mem_handle = cmdbuf[4];
+    
+    // Close APT handle...
+    
+    svcCloseHandle(apt_handle);
+    
+    // Map shared font memory...
+    
+    svcMapMemoryBlock(mem_handle, 0, MEMPERM_READ, MEMPERM_MAX);
+    
+    // Dump shared font to SDMC...
+    
+    Handle               file_handle;
+    u32                  bytes_written = 0;
+    static const FS_path fs_path       = FS_makePath(PATH_CHAR, path);
+    FS_archive           sdmc_archive  = (FS_archive) { 0x00000009, { PATH_EMPTY, 1, (u8*) "" } };
+    
+    FSUSER_OpenArchive(NULL, &sdmc_archive);
+    FSUSER_OpenFile(NULL, &file_handle, sdmc_archive, fs_path, FS_OPEN_CREATE | FS_OPEN_WRITE, FS_ATTRIBUTE_NONE);
+    Result res = FSFILE_Write(file_handle, &bytes_written, 0x0, (u32*)SHARED_FONT_ADDR, SHARED_FONT_SIZE, FS_WRITE_FLUSH);
+    FSFILE_Close(file_handle);
+    FSUSER_CloseArchive(NULL, &sdmc_archive);
+    
+    // Check result...
+    
+    if (res == 0 && bytes_written == SHARED_FONT_SIZE)
+        print(GFX_TOP, "Done!\n");
+    else
+        print(GFX_TOP, "Failed!\n");
+}
+
+} // namespace

source/utils/shared_font/shared_font.h

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+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#pragma once
+
+namespace SharedFont {
+
+void Dump();
+
+}