# Helper macros to convert spaces into question marks and back again
e :=
sp := $(e) $(e)
qs = $(subst ?,$(sp),$1)
sq = $(subst $(sp),?,$1)

# Get name of this Makefile (avoid getting word 0 and a starting space)
makefile_name := $(wordlist 1,1000,$(MAKEFILE_LIST))

# Get path of this Makefile
makefile_path := $(call qs,$(dir $(call sq,$(abspath $(call sq,$(makefile_name))))))

# Get path where the Application is
application_path := $(call qs,$(abspath $(call sq,$(makefile_path)..)))

# Change makefile_name to a relative path
makefile_name := $(subst $(call sq,$(application_path))/,,$(call sq,$(abspath $(call sq,$(makefile_name)))))

# Get relative path to makefile from application_path
makefile_path_relative := $(subst $(call sq,$(application_path))/,,$(call sq,$(abspath $(call sq,$(makefile_path)))))

# Get path to Middlewares
touchgfx_middlewares_path := gcc/Middlewares
cubemx_middlewares_path := Middlewares

# Get path to Drivers
Drivers_path := Drivers

# Get path to GPU2D
gpu2d_path := Appli/Middlewares/ST/touchgfx_components/gpu2d

# Get OS path
touchgfx_os_path := $(touchgfx_middlewares_path)/Third_Party/FreeRTOS
cubemx_os_path := $(cubemx_middlewares_path)/Third_Party/FreeRTOS

# Get identification of this system
ifeq ($(OS),Windows_NT)
UNAME := MINGW32_NT-6.2
else
UNAME := $(shell uname -s)
endif

board_name := STM32H7S78-DK
platform := cortex_m7
cpp_compiler_options_local :=
c_compiler_options_local :=

.PHONY: all clean assets flash intflash

all: $(filter clean,$(MAKECMDGOALS))
all clean assets:
	@cd "$(application_path)" && $(MAKE) -r -f $(makefile_name) -s $(MFLAGS) _$@_

flash intflash: all
	@cd "$(application_path)" && $(MAKE) -r -f $(makefile_name) -s $(MFLAGS) _$@_

# Directories containing application-specific source and header files.
# Additional components can be added to this list. make will look for
# source files recursively in comp_name/src and setup an include directive
# for comp_name/include.
components := \
	Appli/TouchGFX/gui \
	Appli/TouchGFX/generated/gui_generated
    
touchgfx_generator_components := \
	Appli/TouchGFX/target \
	Appli/TouchGFX/App

# Location of folder containing bmp/png files.
asset_images_input  := Appli/TouchGFX/assets/images

# Location of folder to search for ttf font files
asset_fonts_input  := Appli/TouchGFX/assets/fonts

# Location of folder where the texts.xml is placed
asset_texts_input  := Appli/TouchGFX/assets/texts

# Location of folder where the video.avi is placed
asset_videos_input := Appli/TouchGFX/assets/videos

build_root_path := Appli/TouchGFX/build
object_output_path := $(build_root_path)/$(board_name)
binary_output_path := $(build_root_path)/bin

# Location of output folders where autogenerated code from assets is placed
asset_root_path := Appli/TouchGFX/generated
asset_images_output := $(asset_root_path)/images
asset_fonts_output := $(asset_root_path)/fonts
asset_texts_output := $(asset_root_path)/texts
asset_videos_output := $(asset_root_path)/videos

#include application specific configuration
include $(application_path)/Appli/TouchGFX/config/gcc/app.mk

# corrects TouchGFX Path
touchgfx_path := Appli/${subst ../,,$(touchgfx_path)}

os_source_files := \
	$(cubemx_os_path)/Source/croutine.c \
	$(cubemx_os_path)/Source/event_groups.c \
	$(cubemx_os_path)/Source/list.c \
	$(cubemx_os_path)/Source/queue.c \
	$(cubemx_os_path)/Source/stream_buffer.c \
	$(cubemx_os_path)/Source/tasks.c \
	$(cubemx_os_path)/Source/timers.c \
	$(cubemx_os_path)/Source/CMSIS_RTOS_V2/cmsis_os2.c

os_include_paths := \
	$(cubemx_os_path)/Source/include \
	$(cubemx_os_path)/Source/CMSIS_RTOS_V2 \
	$(touchgfx_os_path)/Source/portable/GCC/ARM_CM4F

# these paths can be moved to the touchgfx portable dirs in the future
os_source_files += \
	$(cubemx_os_path)/Source/portable/MemMang/heap_4.c \
	$(cubemx_os_path)/Source/portable/Common/mpu_wrappers.c \
	$(touchgfx_os_path)/Source/portable/GCC/ARM_CM4F/port.c 

		

ifeq ($(UNAME), Linux)
imageconvert_executable := $(touchgfx_path)/framework/tools/imageconvert/build/linux/imageconvert.out
fontconvert_executable := $(touchgfx_path)/framework/tools/fontconvert/build/linux/fontconvert.out
else ifeq ($(UNAME), Darwin)
# Pas de binaire macOS pour imageconvert/fontconvert (Windows/Linux only) : on passe par le
# Wine embarque dans TouchGFX.app (TouchGFX Designer pour macOS est une appli Wineskin).
imageconvert_executable := gcc/macos_wine_wrappers/imageconvert.sh
fontconvert_executable := gcc/macos_wine_wrappers/fontconvert.sh
else
imageconvert_executable := $(touchgfx_path)/framework/tools/imageconvert/build/win/imageconvert.out
fontconvert_executable := $(touchgfx_path)/framework/tools/fontconvert/build/win/fontconvert.out

stldr := MX66UW1G45G_STM32H7S78-DK.stldr
include $(application_path)/gcc/include/cube_programmer.mk

endif

target_executable := target.elf
target_hex := target.hex

assembler    := arm-none-eabi-gcc
c_compiler   := arm-none-eabi-gcc
cpp_compiler := arm-none-eabi-g++
linker       := arm-none-eabi-g++
objcopy      := arm-none-eabi-objcopy
archiver     := arm-none-eabi-ar
strip        := arm-none-eabi-strip

assembler_options += \
	-Wall \
	-fno-exceptions \
	-g3 \
	-mthumb \
	-MMD \
	-MP \
	-c \
	-x assembler-with-cpp 

c_compiler_options += \
	--specs=nano.specs \
	-MMD \
	-MP \
	-Os \
	-Wall \
	-fdata-sections \
	-ffunction-sections \
	-fno-exceptions \
	-fstack-usage \
	-g3 \
	-mthumb \
	-std=gnu11 

cpp_compiler_options += \
	--specs=nano.specs \
	-Os \
	-fdata-sections \
	-fno-exceptions \
	-fno-rtti \
	-g3 \
	-MMD \
	-MP \
	-Wall \
	-femit-class-debug-always \
	-ffunction-sections \
	-fno-use-cxa-atexit \
	-fstack-usage \
	-mthumb \
	-std=gnu++14 

linker_options += \
	--specs=nosys.specs \
	--specs=nano.specs \
	-Os \
	-Wl,--gc-sections -static \
	-Wl,--print-memory-usage \
	-Wl,--start-group -lc -lm -lstdc++ -lsupc++ -Wl,--end-group \
	-fno-exceptions \
	-fno-rtti \
	-g3 \
	-mthumb 

# Additional toolchain configuration for Cortex-M7 targets.
float_options := -mfpu=fpv5-d16 -mfloat-abi=hard

assembler_options    += $(float_options) -mcpu=cortex-m7 -DCORE_CM7
c_compiler_options   += $(float_options) -mcpu=cortex-m7 -DCORE_CM7
cpp_compiler_options += $(float_options) -mcpu=cortex-m7 -DCORE_CM7
linker_options       += $(float_options) -mcpu=cortex-m7 

c_compiler_options   +=  -DSTM32H7S7xx -DUSE_HAL_DRIVER   
cpp_compiler_options +=  -DSTM32H7S7xx -DUSE_HAL_DRIVER  

# include everything + specific vendor folders
framework_includes := $(touchgfx_path)/framework/include

# this needs to change when assset include folder changes.
all_components := $(components) \
	$(asset_fonts_output) \
	$(asset_images_output) \
	$(asset_texts_output) \
	$(asset_videos_output)


include_paths := $(library_includes) \
	$(foreach comp, $(all_components), $(comp)/include) \
	$(foreach comp, $(touchgfx_generator_components), $(comp)/generated) \
	$(framework_includes) \
	$(cubemx_middlewares_path) \
	$(touchgfx_middlewares_path) \
	$(touchgfx_generator_components) 

source_paths = $(foreach comp, $(all_components), $(comp)/src) \
	$(touchgfx_generator_components)

# Finds files that matches the specified pattern. The directory list
# is searched recursively. It is safe to invoke this function with an
# empty list of directories.
#
# Param $(1): List of directories to search
# Param $(2): The file pattern to search for
define find
	$(foreach dir,$(1),$(foreach d,$(wildcard $(dir)/*),\
		$(call find,$(d),$(2))) $(wildcard $(dir)/$(strip $(2))))
endef
unexport find

fontconvert_ttf_lower_files := $(call find, $(asset_fonts_input), *.ttf)
fontconvert_ttf_upper_files := $(call find, $(asset_fonts_input), *.TTF)
fontconvert_otf_lower_files := $(call find, $(asset_fonts_input), *.otf)
fontconvert_otf_upper_files := $(call find, $(asset_fonts_input), *.OTF)
fontconvert_bdf_lower_files := $(call find, $(asset_fonts_input), *.bdf)
fontconvert_bdf_upper_files := $(call find, $(asset_fonts_input), *.BDF)
fontconvert_font_files := \
	$(fontconvert_ttf_lower_files) \
	$(fontconvert_ttf_upper_files) \
	$(fontconvert_otf_lower_files) \
	$(fontconvert_otf_upper_files) \
	$(fontconvert_bdf_lower_files) \
	$(fontconvert_bdf_upper_files)

source_files := $(call find, $(source_paths),*.cpp)

video_files := $(call find, $(assets_videos_input),*.avi)
    
# Drivers/STM32H7RSxx_HAL_Driver
board_c_files += \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_cortex.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_crc.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_crc_ex.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_dma.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_dma_ex.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_dma2d.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_exti.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_flash.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_flash_ex.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_gpio.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_gpu2d.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_i2c.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_i2c_ex.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_icache.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_jpeg.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_ltdc.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_ltdc_ex.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_pwr.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_pwr_ex.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_rcc.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_rcc_ex.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_smbus.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_smbus_ex.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_tim.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_tim_ex.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_xspi.c 

board_c_files += \
    Appli/Core/Src/main.c \
    Appli/Core/Src/freertos.c \
	Appli/Core/Src/stm32h7rsxx_it.c \
	Appli/Core/Src/stm32h7rsxx_hal_msp.c \
	Appli/Core/Src/stm32h7rsxx_hal_timebase_tim.c \
	Appli/Core/Src/system_stm32h7rsxx.c \
	Appli/Core/Src/audio_effects.c \
	Appli/Core/Src/audio_analysis.c \
	Appli/Core/Src/audio_looper.c \
	Appli/Core/Src/fx_octaver.c \
	Appli/Core/Src/fx_equalizer.c \
	Appli/Core/Src/fx_overdrive.c \
	Appli/Core/Src/fx_saturation.c \
	Appli/Core/Src/fx_echo.c \
	Appli/Core/Src/fx_reverb.c

# CMSIS-DSP (vendored from the STM32H7RS firmware package, source-only : no
# precompiled .a for this device). Only the RFFT float32 chain needed by
# audio_analysis.c is included, not the whole library. The MVE/Helium code
# paths in arm_cfft_f32.c/arm_cfft_init_f32.c are guarded behind
# ARM_MATH_MVEF, which is never defined here, so they compile out on this
# Cortex-M7 (no Helium) target.
board_c_files += \
	$(Drivers_path)/CMSIS/DSP/Source/TransformFunctions/arm_rfft_fast_f32.c \
	$(Drivers_path)/CMSIS/DSP/Source/TransformFunctions/arm_rfft_fast_init_f32.c \
	$(Drivers_path)/CMSIS/DSP/Source/TransformFunctions/arm_cfft_f32.c \
	$(Drivers_path)/CMSIS/DSP/Source/TransformFunctions/arm_cfft_init_f32.c \
	$(Drivers_path)/CMSIS/DSP/Source/TransformFunctions/arm_cfft_radix8_f32.c \
	$(Drivers_path)/CMSIS/DSP/Source/TransformFunctions/arm_bitreversal2.c \
	$(Drivers_path)/CMSIS/DSP/Source/CommonTables/arm_common_tables.c \
	$(Drivers_path)/CMSIS/DSP/Source/CommonTables/arm_const_structs.c

# Drivers
board_include_paths := \
	$(Drivers_path)/CMSIS/Include \
	$(Drivers_path)/CMSIS/Device/ST/STM32H7RSxx/Include \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Inc \
	$(Drivers_path)/CMSIS/RTOS2/Include \
	$(Drivers_path)/STM32H7RSxx_BSP/STM32H7S78-DK \
	$(Drivers_path)/STM32H7RSxx_BSP/Components/wm8904 \
	$(Drivers_path)/CMSIS/DSP/Include \
	$(Drivers_path)/CMSIS/DSP/PrivateInclude \
    Appli/Core/Inc \
	$(gpu2d_path)/TouchGFXNema/include \
	$(gpu2d_path)/NemaGFX/include

board_c_files += \
	$(Drivers_path)/STM32H7RSxx_BSP/STM32H7S78-DK/stm32h7s78_discovery_audio.c \
	$(Drivers_path)/STM32H7RSxx_BSP/STM32H7S78-DK/stm32h7s78_discovery_bus.c \
	$(Drivers_path)/STM32H7RSxx_BSP/STM32H7S78-DK/stm32h7s78_discovery.c \
	$(Drivers_path)/STM32H7RSxx_BSP/Components/wm8904/wm8904.c \
	$(Drivers_path)/STM32H7RSxx_BSP/Components/wm8904/wm8904_reg.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_mdf.c \
	$(Drivers_path)/STM32H7RSxx_HAL_Driver/Src/stm32h7rsxx_hal_i2s.c


asm_source_files := \
	gcc/startup_stm32h7s7l8hxh_appli.s

include_paths += platform/os $(board_include_paths) $(os_include_paths)

video_object_files := $(call find, $(asset_videos_output),*.o)
c_source_files := $(makefile_path_relative)/sysmem.c $(makefile_path_relative)/syscalls.c $(call find, $(source_paths),*.c) $(os_source_files) $(board_c_files)
source_files += $(board_cpp_files)
object_files := $(source_files) $(c_source_files)

# start converting paths
object_files := $(object_files:$(touchgfx_path)/%.cpp=$(object_output_path)/touchgfx/%.o)
object_files := $(object_files:%.cpp=$(object_output_path)/%.o)
object_files := $(object_files:$(touchgfx_middlewares_path)/%.c=$(object_output_path)/$(touchgfx_middlewares_path)/%.o)
object_files := $(object_files:$(cubemx_middlewares_path)/%.c=$(object_output_path)/$(cubemx_middlewares_path)/%.o)
object_files := $(object_files:$(Drivers_path)/%.c=$(object_output_path)/Drivers/%.o)
object_files := $(object_files:%.c=$(object_output_path)/%.o)

# remove templates files
object_files := $(filter-out %template.o,$(object_files))

dependency_files := $(object_files:%.o=%.d)

object_asm_files := $(asm_source_files:%.s=$(object_output_path)/%.o)
object_asm_files := $(patsubst $(object_output_path)/%,$(object_output_path)/%,$(object_asm_files))

textconvert_script_path := $(touchgfx_path)/framework/tools/textconvert
textconvert_executable := $(call find, $(textconvert_script_path), *.rb)
videoconvert_script_path := $(touchgfx_path)/framework/tools/videoconvert

text_database := $(asset_texts_input)/texts.xml

libraries := touchgfx-float-abi-hard 
library_include_paths := $(touchgfx_path)/lib/core/$(platform)/gcc \

libraries += touchgfxnema-float-abi-hard \
			 nemagfx-float-abi-hard

library_include_paths += $(gpu2d_path)/TouchGFXNema/lib/cortex_m7/gcc \
						 $(gpu2d_path)/NemaGFX/lib/core/cortex_m7/gcc


.PHONY: _all_ _clean_ _assets_ _flash_ _intflash_ generate_assets build_executable

# Force linking each time
.PHONY: $(binary_output_path)/$(target_executable)

_all_: generate_assets

# if ExtFlashSection or FontFlashSection is detected inside the executable, enable external flash
flash_section_count := 0
elf_filename := "$(application_path)/$(binary_output_path)/$(target_executable)"
ifeq ($(shell test -e $(elf_filename) && echo -n has_elf_file),has_elf_file)
flash_section_count := $(shell readelf -S $(elf_filename) | grep FlashSection | wc -l)
endif

ifeq ($(shell test $(flash_section_count) -gt 0; echo $$?),0)
_flash_: _extflash_
else
_flash_: _intflash_
endif

include $(application_path)/gcc/include/flash_sections_int_ext.mk

generate_assets: _assets_
	@$(MAKE) -f $(makefile_name) -r -s $(MFLAGS) build_executable
build_executable: $(binary_output_path)/$(target_executable)

$(binary_output_path)/$(target_executable): $(object_files) $(object_asm_files)
	@echo Video Objects: $(video_object_files)
	@echo Linking $(@)
	@mkdir -p $(@D)
	@$(linker) \
		$(linker_options) -T $(makefile_path_relative)/../Appli/stm32h7rsxx_RAMxspi1_ROMxspi2.ld -Wl,-Map=$(@D)/application.map $(linker_options_local) \
		$(patsubst %,-L%,$(library_include_paths)) \
		$(object_files) $(object_asm_files) -o $@ \
		-Wl,--start-group $(patsubst %,-l%,$(libraries)) -Wl,--end-group
	@echo "Producing additional output formats..."
	@echo "  target.hex   - Combined internal+external hex"
	@$(objcopy) -O ihex $@ $(@D)/target.hex
	@echo "  intflash.elf - Internal flash, elf debug"
	@$(objcopy) --remove-section=ExtFlashSection --remove-section=FontFlashSection --remove-section=TextFlashSection $@ $(@D)/intflash.elf 2>/dev/null
	@echo "  intflash.hex - Internal flash, hex"
	@$(objcopy) -O ihex --remove-section=ExtFlashSection --remove-section=FontFlashSection --remove-section=TextFlashSection  $@ $(@D)/intflash.hex
	# re-enable if extflash binaries are required in your workflow
	# @echo "  extflash.bin - External flash, binary"
	# @$(objcopy) -O binary --only-section=*FlashSection $@ $(@D)/extflash.bin

$(object_output_path)/touchgfx/%.o: $(touchgfx_path)/%.cpp Appli/TouchGFX/config/gcc/app.mk
	@echo Compiling $<
	@mkdir -p $(@D)
	@$(cpp_compiler) \
		-MMD -MP $(cpp_compiler_options) $(cpp_compiler_options_local) $(user_cflags) \
		$(patsubst %,-I%,$(include_paths)) \
		-c $< -o $@

$(object_output_path)/%.o: %.cpp Appli/TouchGFX/config/gcc/app.mk
	@echo Compiling $<
	@mkdir -p $(@D)
	@$(cpp_compiler) \
		-MMD -MP $(cpp_compiler_options) $(cpp_compiler_options_local) $(user_cflags) \
		$(patsubst %,-I%,$(include_paths)) \
		-c $< -o $@

$(object_output_path)/touchgfx/%.o: $(touchgfx_path)/%.c Appli/TouchGFX/config/gcc/app.mk
	@echo Compiling $<
	@mkdir -p $(@D)
	@$(c_compiler) \
		-MMD -MP $(c_compiler_options) $(c_compiler_options_local) $(user_cflags) \
		$(patsubst %,-I%,$(include_paths)) \
		-c $< -o $@

$(object_output_path)/%.o: %.c Appli/TouchGFX/config/gcc/app.mk
	@echo Compiling $<
	@mkdir -p $(@D)
	@$(c_compiler) \
		-MMD -MP $(c_compiler_options) $(c_compiler_options_local) $(user_cflags) \
		$(patsubst %,-I%,$(include_paths)) \
		-c $< -o $@

$(object_output_path)/%.o: %.s Appli/TouchGFX/config/gcc/app.mk
	@echo Compiling ASM $<
	@mkdir -p $(@D)
	@$(assembler) \
		$(assembler_options) \
		$(patsubst %,-I %,$(os_include_paths)) \
		-c $< -o $@

ifeq ($(MAKECMDGOALS),build_executable)
$(firstword $(dependency_files)): Appli/TouchGFX/config/gcc/app.mk
	@rm -rf $(object_output_path)
-include $(dependency_files)
endif

_assets_: images texts Videos

.PHONY: images texts Videos

images:
	@$(imageconvert_executable) -r $(asset_images_input) -w $(asset_images_output)

Videos:
	@ruby $(videoconvert_script_path)/videoconvert.rb $(asset_videos_input) $(asset_videos_output)

texts:
	@ruby $(textconvert_script_path)/main.rb $(text_database) $(fontconvert_executable) $(asset_fonts_output) $(asset_texts_output) $(asset_fonts_input) Appli/TouchGFX

_clean_:
	@echo Cleaning
	@rm -rf $(build_root_path)
	# Do not remove gui_generated
	@rm -rf $(asset_images_output)
	@rm -rf $(asset_fonts_output)
	@rm -rf $(asset_texts_output)
	@rm -rf $(asset_videos_output)
	# Create directory to avoid error if it does not exist
	@mkdir -p $(asset_root_path)
	# Remove assets folder if it is empty (i.e. no gui_generated folder)
	@rmdir $(asset_root_path) 2>/dev/null || true