# preload env setup
INSTALLED_PRELOAD_TARGET := $(PRODUCT_OUT)/preload.img
TARGET_OUT_PRELOAD := $(PRODUCT_OUT)/preload
PRELOAD_INTERMEDIATES := $(TARGET_OUT_INTERMEDIATES)/PACKAGING/preload_intermediates
ROOTFS_PRELOAD := $(TARGET_ROOT_OUT)/preload
BUILT_RAMDISK_TARGET := $(PRODUCT_OUT)/ramdisk.img
ifeq ($(strip $(PRODUCT_TYPE)),tablet)
BOARD_PRELOAD_PARTITION_SIZE ?= 629145600 #600M
else ifeq ($(strip $(PRODUCT_TYPE)),xr)
BOARD_PRELOAD_PARTITION_SIZE ?= 209715200 #200M
else
BOARD_PRELOAD_PARTITION_SIZE ?= 629145600 #600M
endif

INTERNAL_PRELOADIMAGE_FILES := $(sort $(filter $(TARGET_OUT_PRELOAD)/%, \
    $(ALL_GENERATED_SOURCES) \
    $(ALL_DEFAULT_INSTALLED_MODULES) ) )

# preload objs
$(PRELOAD_INTERMEDIATES)/preload_image_info.txt:
	$(hide) mkdir -p $(PRELOAD_INTERMEDIATES)
	$(hide) rm -rf  $@
	$(call generate-image-prop-dictionary,$@,userdata,skip_fsck=true)
	$(hide) echo mount_point=preload >> $@; \
	    echo partition_size=$(BOARD_PRELOAD_PARTITION_SIZE) >> $@; \
	    echo extfs_rsv_pct=0 >> $@

$(INSTALLED_PRELOAD_TARGET): $(PRELOAD_INTERMEDIATES)/preload_image_info.txt $(INTERNAL_PRELOADIMAGE_FILES) \
    $(PRODUCT_OUT)/userdata.img
	$(hide) mkdir -p $(TARGET_OUT_PRELOAD)
	PATH=$(foreach p,$(INTERNAL_USERIMAGES_BINARY_PATHS),$(p):)$$PATH \
	    build/make/tools/releasetools/build_image.py $(TARGET_OUT_PRELOAD) $< $@ $(PRODUCT_OUT)

$(ROOTFS_PRELOAD):
	$(hide) mkdir -p $@
	$(hide) touch $@/.gitkeep

$(BUILT_RAMDISK_TARGET): $(ROOTFS_PRELOAD)

# final images
.PHONY: preloadimage
preloadimage: $(INSTALLED_PRELOAD_TARGET) $(ROOTFS_PRELOAD) |$(ACP)
	$(hide) mkdir -p $(PRODUCT_OUT)/images
	$(ACP) -f $< $(PRODUCT_OUT)/images/preload.img

# add to droidcore/ramdisk dependency
droidcore: preloadimage