######################################################################################
# License
######################################################################################

# This file is part of the OpenKinect Project. http://www.openkinect.org
#
# Copyright (c) 2010 individual OpenKinect contributors. See the CONTRIB file
# for details.
#
# This code is licensed to you under the terms of the Apache License, version
# 2.0, or, at your option, the terms of the GNU General Public License,
# version 2.0. See the APACHE20 and GPL2 files for the text of the licenses,
# or the following URLs:
# http://www.apache.org/licenses/LICENSE-2.0
# http://www.gnu.org/licenses/gpl-2.0.txt
#
# If you redistribute this file in source form, modified or unmodified, you
# may:
#   1) Leave this header intact and distribute it under the same terms,
#      accompanying it with the APACHE20 and GPL20 files, or
#   2) Delete the Apache 2.0 clause and accompany it with the GPL2 file, or
#   3) Delete the GPL v2 clause and accompany it with the APACHE20 file
# In all cases you must keep the copyright notice intact and include a copy
# of the CONTRIB file.
#
# Binary distributions must follow the binary distribution requirements of
# either License.

######################################################################################
# CMake directives
######################################################################################

cmake_minimum_required(VERSION 2.6)
set(PYTHON_EXECUTABLE "python2")

######################################################################################
# Project declaration and options
######################################################################################

PROJECT(libfreenect)

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules/")

# Find the host operating system and architecture
include (FindOS)
# Set up installation directories
include (SetupDirectories)

set (PROJECT_VER_MAJOR 0)
set (PROJECT_VER_MINOR 5)
set (PROJECT_VER_PATCH 3)
set (PROJECT_VER
  "${PROJECT_VER_MAJOR}.${PROJECT_VER_MINOR}.${PROJECT_VER_PATCH}")
set (PROJECT_APIVER
  "${PROJECT_VER_MAJOR}.${PROJECT_VER_MINOR}")

OPTION(BUILD_REDIST_PACKAGE "Build libfreenect in a legally-redistributable manner (only affects audio)" ON)
OPTION(BUILD_EXAMPLES "Build example programs" ON)
OPTION(BUILD_FAKENECT "Build fakenect mock library" ON)
OPTION(BUILD_C_SYNC "Build c synchronous library" ON)
OPTION(BUILD_CPP "Build C++ Library (currently header only)" ON)
OPTION(BUILD_CV "Build OpenCV wrapper" OFF)
OPTION(BUILD_AS3_SERVER "Build the Actionscript 3 Server Example" OFF)
OPTION(BUILD_PYTHON "Build Python extension" OFF)
OPTION(BUILD_OPENNI2_DRIVER "Build libfreenect driver for OpenNI2" OFF)
IF(PROJECT_OS_LINUX)
	OPTION(BUILD_CPACK_DEB "Build an DEB using CPack" OFF)
	OPTION(BUILD_CPACK_RPM "Build an RPM using CPack" OFF)
	OPTION(BUILD_CPACK_TGZ "Build an TGZ using CPack" OFF)
ENDIF(PROJECT_OS_LINUX)

######################################################################################
# Dependencies and Definitions
######################################################################################

# Find packages needed to build library
find_package(libusb-1.0 REQUIRED)

# Check the endianness of the system
include (TestBigEndian)
test_big_endian(BIG_ENDIAN)
if(BIG_ENDIAN)
  add_definitions(-DFN_BIGENDIAN)
endif()

if (WIN32)
  set(MATH_LIB "")
else(WIN32)
  set(MATH_LIB "m")
endif()

######################################################################################
# CMake
######################################################################################

SET(EXECUTABLE_OUTPUT_PATH ${CMAKE_BINARY_DIR}/bin)
SET(LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR}/lib)
SET(DOC_OUTPUT_PATH ${CMAKE_BINARY_DIR}/doc)

if    (MSVC)
  set(C_FLAGS_WARNING "-W4")
else  ()
  set(C_FLAGS_WARNING "-Wall")
endif (MSVC)

set(C_CXX_FLAGS_DEFAULT "${C_FLAGS_WARNING} -O2")

# These defaults can be overriden by -DCMAKE_C_FLAGS=""
set(CMAKE_C_FLAGS "${C_CXX_FLAGS_DEFAULT} ${CMAKE_C_FLAGS}")
# C Configurations
SET(CMAKE_C_FLAGS_DEBUG   "${CMAKE_C_FLAGS} -O0 -g -DDEBUG=1")
SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS}")
SET(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELEASE} -g")

# These defaults can be overriden by -DCMAKE_CXX_FLAGS=""
set(CMAKE_CXX_FLAGS "${C_CXX_FLAGS_DEFAULT} ${CMAKE_CXX_FLAGS}")
# C++ Configurations
SET(CMAKE_CXX_FLAGS_DEBUG   "${CMAKE_CXX_FLAGS} -O0 -g -DDEBUG=1")
SET(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS}")
SET(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELEASE} -g")

if (WIN32)
  set(MATH_LIB "")
else(WIN32)
  set(MATH_LIB "m")
endif()

# Pretty much everyone is going to need the main includes
include_directories (${CMAKE_CURRENT_SOURCE_DIR}/include)

# libfreenect.h includes libusb.h, so everyone needs this too
include_directories(${LIBUSB_1_INCLUDE_DIRS})

if(WIN32)
  include_directories("${CMAKE_CURRENT_SOURCE_DIR}/platform/windows")
endif()

# Add library project
add_subdirectory (src)

IF(BUILD_EXAMPLES)
  add_subdirectory (examples)
ENDIF()

IF(BUILD_FAKENECT)
  add_subdirectory (fakenect)
ENDIF()

IF(BUILD_C_SYNC)
  add_subdirectory (wrappers/c_sync)
ENDIF()

IF(BUILD_CPP)
  add_subdirectory (wrappers/cpp)
ENDIF()

IF(BUILD_CV)
  add_subdirectory (wrappers/opencv)
ENDIF()

IF(BUILD_AS3_SERVER)
  add_subdirectory(wrappers/actionscript)
ENDIF()

IF(BUILD_PYTHON)
  add_subdirectory (wrappers/python)
ENDIF()

IF(BUILD_OPENNI2_DRIVER)
  add_subdirectory(OpenNI2-FreenectDriver)
ENDIF()

######################################################################################
# Extras
######################################################################################

# Create an uninstall target
configure_file(
  "${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules/UninstallTarget.cmake.in"
  "${CMAKE_CURRENT_BINARY_DIR}/UninstallTarget.cmake"
  IMMEDIATE @ONLY)

# --- cmake config file ---
CONFIGURE_FILE(libfreenectConfig.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/libfreenectConfig.cmake @ONLY)
INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/libfreenectConfig.cmake DESTINATION share/${PROJECT_NAME})

add_custom_target(uninstall
  COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/UninstallTarget.cmake)

# Create Debian/RPM Packages
# after make, use "fakeroot cpack" in the build Dir to complete

IF ( BUILD_CPACK_TGZ OR BUILD_CPACK_DEB OR BUILD_CPACK_RPM )
  set(CPACK_PACKAGE_DESCRIPTION "libfreenect for kinect")
  set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "libfreenect library for using kinect")
  set(CPACK_PACKAGE_NAME "libfreenect-dev")
  set(CPACK_DEBIAN_PACKAGE_DEPENDS "libusb-1.0-0-dev")

  set(CPACK_PACKAGE_CONTACT "OpenKinect <openkinect@googlegroups.com>")
  #set(CPACK_PACKAGE_VENDOR "")
  set(CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VER_MAJOR})
  set(CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VER_MINOR})
  set(CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VER_PATCH})
  set(VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}")

  set(CPACK_GENERATOR "")
  if (BUILD_CPACK_TGZ)
    list(APPEND CPACK_GENERATOR "TGZ")
  endif()
  if (BUILD_CPACK_RPM)
    list(APPEND CPACK_GENERATOR "RPM")
  endif()
  if (BUILD_CPACK_DEB)
    list(APPEND CPACK_GENERATOR "DEB")
  endif()
  set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}-${CMAKE_SYSTEM_PROCESSOR}")

  include(CPack)

  INSTALL(FILES "${CMAKE_BINARY_DIR}/lib/libfreenect.a" DESTINATION ${PROJECT_LIBRARY_INSTALL_DIR})
  INSTALL(FILES "include/libfreenect.h" DESTINATION ${PROJECT_INCLUDE_INSTALL_DIR})
  INSTALL(FILES "include/libfreenect_registration.h" DESTINATION ${PROJECT_INCLUDE_INSTALL_DIR})
  INSTALL(FILES "include/libfreenect_audio.h" DESTINATION ${PROJECT_INCLUDE_INSTALL_DIR})
  INSTALL(FILES "APACHE20" DESTINATION "share/doc/${CPACK_PACKAGE_NAME}")
  INSTALL(FILES "GPL2" DESTINATION "share/doc/${CPACK_PACKAGE_NAME}")
  INSTALL(FILES "README.md" DESTINATION "share/doc/${CPACK_PACKAGE_NAME}")

ENDIF ( )