# opus and libvpx come from the repository's tools/deps: made once per Mac from pinned sources (no Homebrew).
# make runs here (games/<game>); set a *_PREFIX to use another build.
OPUS_PREFIX ?= $(or $(shell python3 ../../tools/deps prefix opus),$(error tools/deps could not make opus))
VPX_PREFIX ?= $(or $(shell python3 ../../tools/deps prefix libvpx),$(error tools/deps could not make libvpx))

WORK ?= Kirby_build
OUT := $(WORK)/build
NATIVE_OPT ?= -O2

GFX_SRC := $(wildcard third_party/d2r_gfx/gfx/nvn/*.c third_party/d2r_gfx/gfx/nvn/*.m third_party/d2r_gfx/gfx/nvn/*.S third_party/d2r_gfx/gfx/tex/*.c third_party/d2r_gfx/gfx/tex/*.m)
GFX_OBJECTS := $(patsubst %,$(OUT)/obj/%.o,$(GFX_SRC))
GFX_HEADERS := $(wildcard third_party/d2r_gfx/gfx/nvn/*.h third_party/d2r_gfx/gfx/nvn/include/*.h third_party/d2r_gfx/host/*.h)
GFX_FLAGS := -std=gnu11 -Wno-error -Wno-unused-function -Wno-unused-parameter -fobjc-arc -DGAME_KIRBY=1 -Ithird_party/d2r_gfx/gfx/nvn/include
RUNTIME_SRC := $(filter-out runtime/frontend_ios.m,$(wildcard runtime/*.c runtime/*.m runtime/*.S))
RUNTIME_HEADERS := $(wildcard runtime/*.h)
GENERATED := $(OUT)/runtime_tables.h $(OUT)/romfs_config.h $(OUT)/shared_fonts_config.h

.PHONY: all prepare runtime clean

all: $(OUT)/kirby-native

$(OUT)/obj/%.o: % $(GFX_HEADERS)
	@mkdir -p "$(dir $@)"
	xcrun clang $(NATIVE_OPT) -g -Wall -Wextra $(GFX_FLAGS) -c "$<" -o "$@"

$(OUT)/kirby-native: $(RUNTIME_SRC) $(RUNTIME_HEADERS) $(GENERATED) $(GFX_OBJECTS)
	xcrun clang -std=c11 $(NATIVE_OPT) -g -Wall -Wextra -Wno-error -Wno-deprecated-declarations \
	  -Ithird_party/d2r_gfx/gfx/nvn/include -I$(OUT) -I$(OPUS_PREFIX)/include/opus -I$(VPX_PREFIX)/include \
	  $(RUNTIME_SRC) $(GFX_OBJECTS) $(OPUS_PREFIX)/lib/libopus.a $(VPX_PREFIX)/lib/libvpx.a \
	  -framework Metal -framework MetalFX -framework Foundation -framework QuartzCore -framework ImageIO -framework CoreGraphics \
	  -framework CoreText -framework UniformTypeIdentifiers -fobjc-arc -framework Cocoa -framework CoreVideo -framework CoreFoundation \
	  -framework AudioToolbox -framework GameController -framework CoreHaptics -framework IOKit -framework VideoToolbox -framework CoreMedia -o "$@"

clean:
	rm -rf "$(OUT)/obj" "$(OUT)/kirby-native"
