add t3x conversion example

libtex3ds/Makefile

@@ -0,0 +1,229 @@
+#---------------------------------------------------------------------------------
+.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		:=	$(notdir $(CURDIR))
+BUILD		:=	build
+SOURCES		:=	source
+DATA		:=	data
+INCLUDES	:=	include
+GRAPHICS	:=	gfx
+GFXBUILD	:=	$(BUILD)
+#ROMFS		:=	romfs
+#GFXBUILD	:=	$(ROMFS)/gfx
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft
+
+CFLAGS	:=	-g -Wall -O2 -mword-relocations \
+			-ffunction-sections \
+			$(ARCH)
+
+CFLAGS	+=	$(INCLUDE) -D__3DS__
+
+CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
+
+ASFLAGS	:=	-g $(ARCH)
+LDFLAGS	=	-specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
+
+LIBS	:= -lctru -lm
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS	:= $(CTRULIB) include
+
+
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(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
+
+#---------------------------------------------------------------------------------
+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
+#---------------------------------------------------------------------------------------

libtex3ds/include/compress.h

@@ -0,0 +1,121 @@
+/*------------------------------------------------------------------------------
+ * Copyright (c) 2017-2022
+ *     Michael Theall (mtheall)
+ *
+ * This file is part of tex3ds.
+ *
+ * tex3ds is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * tex3ds is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with tex3ds.  If not, see <http://www.gnu.org/licenses/>.
+ *----------------------------------------------------------------------------*/
+/** @file compress.h
+ *  @brief Compression routines
+ */
+#pragma once
+
+#include <cassert>
+#include <cstddef>
+#include <cstdint>
+#include <vector>
+
+namespace Tex3DS
+{
+
+/** @brief LZSS/LZ10 compression
+ *  @param[in] src Source buffer
+ *  @param[in] len Source length
+ *  @returns Compressed buffer
+ */
+std::vector<uint8_t> lzssEncode (const void *src, size_t len);
+
+/** @brief LZSS/LZ10 decompression
+ *  @param[in]  src Source buffer
+ *  @param[out] dst Destination buffer
+ *  @param[in]  len Destination length
+ *  @note The output buffer must be large enough to hold the decompressed data
+ */
+void lzssDecode (const void *src, void *dst, size_t len);
+
+/** @brief LZ11 compression
+ *  @param[in] src Source buffer
+ *  @param[in] len Source length
+ *  @returns Compressed buffer
+ */
+std::vector<uint8_t> lz11Encode (const void *src, size_t len);
+
+/** @brief LZ11 decompression
+ *  @param[in]  src Source buffer
+ *  @param[out] dst Destination buffer
+ *  @param[in]  len Destination length
+ *  @note The output buffer must be large enough to hold the decompressed data
+ */
+void lz11Decode (const void *src, void *dst, size_t len);
+
+/** @brief Run-length encoding compression
+ *  @param[in] src Source buffer
+ *  @param[in] len Source length
+ *  @returns Compressed buffer
+ */
+std::vector<uint8_t> rleEncode (const void *src, size_t len);
+
+/** @brief Run-length encoding decompression
+ *  @param[in]  src Source buffer
+ *  @param[out] dst Destination buffer
+ *  @param[in]  len Destination length
+ *  @note The output buffer must be large enough to hold the decompressed data
+ */
+void rleDecode (const void *src, void *dst, size_t len);
+
+/** @brief Huffman compression
+ *  @param[in] src Source buffer
+ *  @param[in] len Source length
+ *  @returns Compressed buffer
+ */
+std::vector<uint8_t> huffEncode (const void *src, size_t len);
+
+/** @brief Huffman decompression
+ *  @param[in]  src Source buffer
+ *  @param[out] dst Destination buffer
+ *  @param[in]  len Destination length
+ *  @note The output buffer must be large enough to hold the decompressed data
+ */
+void huffDecode (const void *src, void *dst, size_t len);
+
+namespace
+{
+/** @brief Output a GBA-style compression header
+ *  @param[out] header Output header
+ *  @param[in]  type   Compression type
+ *  @param[in]  size   Uncompressed data size
+ *  @returns Size of the compression header
+ */
+inline void compressionHeader (std::vector<uint8_t> &buffer, uint8_t type, size_t size)
+{
+	assert (!(type & 0x80));
+
+	buffer.push_back (type);
+	buffer.push_back (size >> 0);
+	buffer.push_back (size >> 8);
+	buffer.push_back (size >> 16);
+
+	if (size >= 0x1000000)
+	{
+		buffer[buffer.size () - 4] |= 0x80;
+		buffer.push_back (size >> 24);
+		buffer.push_back (0); /* Reserved */
+		buffer.push_back (0); /* Reserved */
+		buffer.push_back (0); /* Reserved */
+	}
+}
+}
+
+} // namespace Tex3DS