# Copyright 2019-2020, Collabora, Ltd.
# SPDX-License-Identifier: BSL-1.0

spirv_shaders(SHADER_HEADERS
	shaders/distortion.vert
	shaders/mesh.frag
	shaders/mesh.vert
	shaders/none.frag
	shaders/panotools.frag
	shaders/vive.frag
	)

set(CLIENT_SOURCE_FILES
	client/comp_vk_client.c
	client/comp_vk_client.h
	client/comp_vk_glue.c
	)

set(MAIN_SOURCE_FILES
	main/comp_compositor.c
	main/comp_compositor.h
	main/comp_distortion.c
	main/comp_distortion.h
	main/comp_documentation.h
	main/comp_renderer.c
	main/comp_renderer.h
	main/comp_settings.c
	main/comp_settings.h
	main/comp_swapchain.c
	main/comp_vk_swapchain.c
	main/comp_vk_swapchain.h
	main/comp_window.h
	)

if (VULKAN_ENABLE_VALIDATION)
	add_definitions(-DXRT_ENABLE_VK_VALIDATION)
endif()


###
# Client library
#

if(BUILD_WITH_OPENGL)
	list(APPEND CLIENT_SOURCE_FILES
		client/comp_gl_client.c
		client/comp_gl_client.h
		client/comp_gl_glue.c
		client/comp_gles_glue.c # TODO separate config for GLES
		)
endif()
if(BUILD_WITH_OPENGL AND BUILD_WITH_XLIB)
	list(APPEND CLIENT_SOURCE_FILES
		client/comp_gl_xlib_client.c
		client/comp_gl_xlib_client.h
		client/comp_gl_xlib_glue.c
		)
endif()
if(BUILD_WITH_OPENGL AND BUILD_WITH_EGL)
	list(APPEND CLIENT_SOURCE_FILES
		client/comp_egl_glue.c
		)
endif()

add_library(comp_client STATIC ${CLIENT_SOURCE_FILES})
target_link_libraries(comp_client PUBLIC xrt-interfaces PRIVATE aux_util aux_vk)
target_include_directories(comp_client PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})

if(BUILD_WITH_OPENGL)
	target_link_libraries(comp_client PRIVATE aux_ogl)
endif()

if(BUILD_WITH_OPENGL AND BUILD_WITH_XLIB)
	target_link_libraries(comp_client PRIVATE OpenGL::GLX)
endif()
##
# Main library
#

if(BUILD_COMPOSITOR_MAIN)

	if(BUILD_WITH_XCB)
		list(APPEND MAIN_SOURCE_FILES
			main/comp_window_xcb.c
			)
	endif()
	if(BUILD_WITH_XCB AND BUILD_WITH_XLIB)
		list(APPEND MAIN_SOURCE_FILES
			main/comp_window_direct_mode.c
			)
	endif()

	# generate wayland protocols
	if(BUILD_WITH_WAYLAND)
		pkg_get_variable(WL_PROTOS_PKG_DIR wayland-protocols pkgdatadir)
		pkg_get_variable(WL_SCANNER wayland-scanner wayland_scanner)

		set(WL_PROTOS_DIR "${CMAKE_CURRENT_BINARY_DIR}/wayland-protocols/")
		file(MAKE_DIRECTORY "${WL_PROTOS_DIR}")

		set(WL_PROTOS_XML "${WL_PROTOS_PKG_DIR}/stable/xdg-shell/xdg-shell.xml")
		set(WL_PROTOS_C "${WL_PROTOS_DIR}/xdg-shell.c")
		set(WL_PROTOS_H "${WL_PROTOS_DIR}/xdg-shell-client-protocol.h")

		add_custom_command(
			COMMAND
			${WL_SCANNER} private-code "${WL_PROTOS_XML}" "${WL_PROTOS_C}"
			OUTPUT "${WL_PROTOS_C}" VERBATIM)

		add_custom_command(
			COMMAND
			${WL_SCANNER} client-header "${WL_PROTOS_XML}" "${WL_PROTOS_H}"
			OUTPUT "${WL_PROTOS_H}" VERBATIM)

		set(WL_PROTOS_SRC ${WL_PROTOS_C} ${WL_PROTOS_H})
		list(APPEND MAIN_SOURCE_FILES
			main/comp_window_wayland.c
			)
	endif()

	add_library(comp_main STATIC ${SHADER_HEADERS} ${MAIN_SOURCE_FILES} ${WL_PROTOS_SRC})
	target_link_libraries(comp_main PUBLIC xrt-interfaces PRIVATE aux_util aux_os aux_vk)
	target_include_directories(comp_main PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
	target_include_directories(comp_main SYSTEM PRIVATE
		# Shaders - marked SYSTEM so we get no warnings
		${CMAKE_CURRENT_BINARY_DIR}
		)

	if(BUILD_WITH_WAYLAND)
		target_include_directories(comp_main SYSTEM PRIVATE ${WL_PROTOS_DIR})
		target_link_libraries(comp_main PRIVATE ${WAYLAND_LIBRARIES})
	endif()
	if(BUILD_WITH_XCB)
		target_include_directories(comp_main SYSTEM PRIVATE ${XCB_INCLUDE_DIRS})
		target_link_libraries(comp_main PRIVATE ${XCB_LIBRARIES})
	endif()

	if(BUILD_WITH_XCB AND BUILD_WITH_XLIB)
		target_link_libraries(comp_main PRIVATE ${X11_X11_LIB})
	endif()
	if(BUILD_WITH_EGL)
		target_include_directories(comp_main SYSTEM PRIVATE ${EGL_INCLUDE_DIRS})
		target_link_libraries(comp_main PRIVATE ${XCB_LIBRARIES})
	endif()

	add_subdirectory(shaders)
endif()