CMakeLists.txt

# Copyright 2019 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

cmake_minimum_required (VERSION 3.0)

if(APPLE)
	set(MACOSX_DEPLOYMENT_TARGET "10.15")
  set(CMAKE_OSX_DEPLOYMENT_TARGET "10.15" CACHE STRING "")
endif()

project (usd_from_gltf)

# We don't use Python in this tool, but when the USD library is built with
# PXR_PYTHON_SUPPORT_ENABLED it references it anyway.
if (EXISTS "${USD_DIR}/lib/python/")
  find_package(Python COMPONENTS Development)
  if (NOT Python_FOUND)
    message(FATAL_ERROR "Missing python libs.")
  endif (NOT Python_FOUND)
endif (EXISTS "${USD_DIR}/lib/python/")

set(USD_INCLUDE_DIRS
  "${USD_DIR}/include"
  "${USD_DIR}/include/boost-1_61"
# Visual Studio 2017 requires boost 1.65.1.
  "${USD_DIR}/include/boost-1_65_1"
# USD uses boost-1_70
  "${USD_DIR}/include/boost-1_70"
  ${Python_INCLUDE_DIRS}
)

link_directories(
  "${USD_DIR}/lib"
  ${Python_LIBRARY_DIRS}
)

if (MSVC)
set(USD_LIBS
  usd_gf.lib
  usd_plug.lib
  usd_sdf.lib
  usd_tf.lib
  usd_usd.lib
  usd_usdGeom.lib
  usd_usdShade.lib
  usd_usdSkel.lib
  usd_usdUtils.lib
  usd_vt.lib
)
elseif (APPLE)
set(USD_LIBS
  ${Python_LIBRARIES}
  -lpthread
  libusd_gf.dylib
  libusd_plug.dylib
  libusd_sdf.dylib
  libusd_tf.dylib
  libusd_usd.dylib
  libusd_usdGeom.dylib
  libusd_usdShade.dylib
  libusd_usdSkel.dylib
  libusd_usdUtils.dylib
  libusd_vt.dylib
)
if (Python_FOUND)
  list(APPEND USD_LIBS "${USD_DIR}/lib/libboost_python37.dylib")
endif (Python_FOUND)
else ()
set(USD_LIBS
  ${Python_LIBRARIES}
  -lpthread
  libusd_gf.so
  libusd_plug.so
  libusd_sdf.so
  libusd_tf.so
  libusd_usd.so
  libusd_usdGeom.so
  libusd_usdShade.so
  libusd_usdSkel.so
  libusd_usdUtils.so
  libusd_vt.so
)
if (Python_FOUND)
  list(APPEND USD_LIBS "${USD_DIR}/lib/libboost_python.so")
endif (Python_FOUND)
endif ()

if (MSVC)
add_compile_definitions(
    _CRT_SECURE_NO_WARNINGS
)
add_compile_options(
  /wd4996 # Call to 'std::copy' with parameters that may be unsafe
)

# Use the release runtime for all builds so we can compile the library in Debug
# without having to recompile dependencies.
set(CompilerFlags
  CMAKE_CXX_FLAGS
  CMAKE_CXX_FLAGS_DEBUG
  CMAKE_CXX_FLAGS_RELEASE
  CMAKE_C_FLAGS
  CMAKE_C_FLAGS_DEBUG
  CMAKE_C_FLAGS_RELEASE
)
foreach(CompilerFlag ${CompilerFlags})
#  string(REPLACE "/MDd" "/MD" ${CompilerFlag} "${${CompilerFlag}}")
#  string(REPLACE "/RTC1" "" ${CompilerFlag} "${${CompilerFlag}}")
endforeach()

else (MSVC)
add_compile_options(
  -Wno-deprecated # Silence deprecation warnings due to USD headers.
  -std=c++14
)

endif (MSVC)

# PIC is necessary for building the plugin shared library.
set(CMAKE_POSITION_INDEPENDENT_CODE ON)

# Set RPATH to locate USD shared libraries on Linux/OSX.
set(CMAKE_INSTALL_RPATH "${USD_DIR}/lib")
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

if(APPLE)
	# Ensure the rpath is already deployable for build targets (i.e. doesn't
	# contain absolute paths into the build tree)
    set(CMAKE_SKIP_BUILD_RPATH TRUE)
    set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
    set(CMAKE_INSTALL_RPATH_USE_LINK_PATH FALSE)
	set(CMAKE_INSTALL_RPATH "@executable_path;@loader_path/Frameworks;@executable_path/../Frameworks")
endif()

add_subdirectory(common)
add_subdirectory(convert)
add_subdirectory(gltf)
add_subdirectory(process)
add_subdirectory(usd_from_gltf)
add_subdirectory(ufg_plugin)

install(EXPORT ufglib DESTINATION lib/ufg)
install(FILES ufg-config.cmake DESTINATION .)