################################################################################
#
# libdisplayadapter
#
################################################################################
LOCAL_PATH = $(shell pwd)
LDFLAGS += -Wl,--no-as-needed -lstdc++ -lpthread -lz -ldl -lrt -L$(STAGING_DIR)/usr/lib
CFLAGS += -Wall -Werror -Wno-unknown-pragmas -Wno-format -Wno-format-security -Wno-error=unused-result -g -fno-rtti \
          -O3 -fexceptions -fnon-call-exceptions -D_GNU_SOURCE -I$(STAGING_DIR)/usr/include

# USE_BINDER=1 builds the Yocto Binder service path. USE_BINDER=0 builds the
# direct MesonDisplay path used by t6d.
USE_BINDER ?= 0
ifneq ($(filter 0 1,$(USE_BINDER)),$(USE_BINDER))
$(error USE_BINDER must be 0 or 1)
endif

MIN_GCC_VERSION = "10"
GCC_VERSION := "`$(CC) -dumpversion | cut -f1 -d'.'`"
IS_GCC_ABOVE_MIN_VERSION := $(shell expr "$(GCC_VERSION)" ">=" "$(MIN_GCC_VERSION)")
ifeq "$(IS_GCC_ABOVE_MIN_VERSION)" "1"
CFLAGS += -std=gnu++20 -DROKU_LOG -I$(STAGING_DIR)/usr/include/libdrm -std=c++17 -DENABLE_VIDEO_DI -DLINUX_COMPILE
LDFLAGS += -L$(PLATFORM_COMMON_SYSRDIR)/lib -ldrm -lcomposition -lvideotunnel

ROKU_LOG_HEADER = -I$(PLATFORM_COMMON_SYSRDIR)/include
endif

common_display_SRCS = \
  $(LOCAL_PATH)/display/BitsMap.cpp \
  $(LOCAL_PATH)/display/MesonDisplay.cpp \
  $(LOCAL_PATH)/display/MesonLayer.cpp \
  $(LOCAL_PATH)/display/MultiplanesComposition.cpp \
  $(LOCAL_PATH)/display/V2DComposer.cpp \
  $(LOCAL_PATH)/display/MesonDisplayPipe.cpp \
  $(LOCAL_PATH)/display/DisplayThread.cpp \
  $(LOCAL_PATH)/display/drm/DrmConnector.cpp \
  $(LOCAL_PATH)/display/drm/DrmCrtc.cpp \
  $(LOCAL_PATH)/display/drm/DrmEncoder.cpp \
  $(LOCAL_PATH)/display/drm/DrmVideoPlane.cpp \
  $(LOCAL_PATH)/display/drm/DrmVideoBo.cpp \
  $(LOCAL_PATH)/display/drm/DrmAsyncCommitor.cpp \
  $(LOCAL_PATH)/display/drm/DrmProperty.cpp \
  $(LOCAL_PATH)/display/DispAdptLog.cpp \
  $(LOCAL_PATH)/display/MesonEventListener.cpp \
  $(LOCAL_PATH)/display/VideoPipeAdapter.cpp \
  $(LOCAL_PATH)/postprocessor/ProcessorsManager.cpp \
  $(LOCAL_PATH)/postprocessor/fbprocessor/DiProcessor.cpp \
  $(LOCAL_PATH)/postprocessor/fbprocessor/FbProcessor.cpp \
  $(NULL)

ifeq ($(USE_BINDER),1)
LDFLAGS += -lbinder
displayadapter_SRCS = \
  $(LOCAL_PATH)/binder/displayadapter.cpp \
  $(LOCAL_PATH)/binder/BinderClient.cpp \
  $(NULL)
mesonVideoCompositor_SRCS = \
  $(LOCAL_PATH)/binder/MesonVideoCompositor.cpp \
  $(LOCAL_PATH)/binder/BinderServer.cpp \
  $(common_display_SRCS)
BUILD_TARGETS = libdisplayadapter.so mesonVideoCompositor
else
displayadapter_SRCS = \
  $(LOCAL_PATH)/displayadapter.cpp \
  $(common_display_SRCS)
BUILD_TARGETS = libdisplayadapter.so
endif

displayadapter_HEADERS = \
	-I$(LOCAL_PATH) \
	-I$(LOCAL_PATH)/binder/include \
	-I$(LOCAL_PATH)/include \
	-I$(LOCAL_PATH)/display \
	-I$(LOCAL_PATH)/display/drm \
	-I$(LOCAL_PATH)/postprocessor/include \
	-I$(LOCAL_PATH)/postprocessor/fbprocessor \
	$(ROKU_LOG_HEADER) \
	$(NULL)

OUT_DIR ?= .
# ---------------------------------------------------------------------
#  Build rules

.PHONY: all install uninstall clean

libdisplayadapter.so: $(displayadapter_SRCS)
	$(CC) $(CFLAGS) $(LDFLAGS) -shared -fPIC $(displayadapter_HEADERS) \
	-o $(OUT_DIR)/$@ $^

mesonVideoCompositor: $(mesonVideoCompositor_SRCS)
	$(CC) $(CFLAGS) $(LDFLAGS) $(displayadapter_HEADERS) \
	-o $(OUT_DIR)/$@ $^


all: $(BUILD_TARGETS)

clean:
	rm -f *.o $(addprefix $(OUT_DIR)/,$(BUILD_TARGETS))

install:
	install -m 0644 $(OUT_DIR)/libdisplayadapter.so $(TARGET_DIR)/usr/lib/
	$(if $(filter 1,$(USE_BINDER)),install -m 755 $(OUT_DIR)/mesonVideoCompositor $(TARGET_DIR)/usr/bin/)
	install -m 644 include/display_interface.h $(TARGET_DIR)/usr/include/
	install -m 644 include/MesonTypes.h $(TARGET_DIR)/usr/include/

uninstall:
	rm -f $(TARGET_DIR)/usr/lib/libdisplayadapter.so
	$(if $(filter 1,$(USE_BINDER)),rm -f $(TARGET_DIR)/usr/bin/mesonVideoCompositor)