#  Software License Agreement (BSD License)
#  Copyright (c) 2003-2016, CHAI3D.
#  (www.chai3d.org)
#
#  All rights reserved.
#
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions
#  are met:
#
#  * Redistributions of source code must retain the above copyright
#  notice, this list of conditions and the following disclaimer.
#
#  * Redistributions in binary form must reproduce the above
#  copyright notice, this list of conditions and the following
#  disclaimer in the documentation and/or other materials provided
#  with the distribution.
#
#  * Neither the name of CHAI3D nor the names of its contributors may
#  be used to endorse or promote products derived from this software
#  without specific prior written permission.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
#  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
#  FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
#  COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
#  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
#  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
#  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
#  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
#  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
#  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
#  POSSIBILITY OF SUCH DAMAGE.
#
#  $Author: seb $
#  $Date: 2016-11-01 19:39:15 +0100 (Tue, 01 Nov 2016) $
#  $Rev: 2152 $


#
# project configuration
#

cmake_minimum_required (VERSION 3.0.0)
project (CHAI3D-BULLET)

# set version info
file (READ ${PROJECT_SOURCE_DIR}/src/version VERSION)
STRING (REGEX REPLACE ".*MAJOR=([0-9]+).*" "\\1" MAJOR_VERSION "${VERSION}")
STRING (REGEX REPLACE ".*MINOR=([0-9]+).*" "\\1" MINOR_VERSION "${VERSION}")
STRING (REGEX REPLACE ".*RELEASE=([0-9]+).*" "\\1" RELEASE_VERSION "${VERSION}")
set (PROJECT_VERSION ${MAJOR_VERSION}.${MINOR_VERSION}.${RELEASE_VERSION})

# platform detection
if (${CMAKE_SYSTEM_NAME} MATCHES Windows)
  set (OS "win")
  if (${CMAKE_CL_64})
    set (ARCH "x64")
  else ()
    set (ARCH "Win32")
  endif ()
elseif (${CMAKE_SYSTEM_NAME} MATCHES Linux)
  set (OS "lin")
  if (${CMAKE_SIZEOF_VOID_P} EQUAL 8)
    set (ARCH "x86_64")
  else ()
    set (ARCH "i686")
  endif ()
elseif (${CMAKE_SYSTEM_NAME} MATCHES Darwin)
  set (OS "mac")
  set (ARCH "x86_64")
endif ()

# enforce build type
if (NOT CMAKE_BUILD_TYPE)
  set (CMAKE_BUILD_TYPE Release CACHE STRING "Setting build mode to Release" FORCE)
endif()

# output location
set (CMAKE_RUNTIME_OUTPUT_DIRECTORY                ${PROJECT_SOURCE_DIR}/bin/${OS}-${ARCH})
set (CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG          ${PROJECT_SOURCE_DIR}/bin/${OS}-${ARCH})
set (CMAKE_RUNTIME_OUTPUT_DIRECTORY_MINSIZEREL     ${PROJECT_SOURCE_DIR}/bin/${OS}-${ARCH})
set (CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE        ${PROJECT_SOURCE_DIR}/bin/${OS}-${ARCH})
set (CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELWITHDEBINFO ${PROJECT_SOURCE_DIR}/bin/${OS}-${ARCH})

# find dependencies
find_package (CHAI3D 3.2 REQUIRED)
find_package(yaml-cpp REQUIRED)
include_directories (${CHAI3D_INCLUDE_DIRS})
link_directories (${CHAI3D_LIBRARY_DIRS})
add_definitions (${CHAI3D_DEFINITIONS})
include_directories(${YAML_CPP_INCLUDE_DIR})
set( CHAI3D_LIBRARIES ${CHAI3D_LIBRARIES} ${YAML_CPP_LIBRARIES})

# optional settings
include (${PROJECT_SOURCE_DIR}/CMakeOptions.txt OPTIONAL)

# optional configuration (configured based on CMakeOptions.txt)
# -

# Windows global build options
if (${CMAKE_SYSTEM_NAME} MATCHES Windows)

  # VisualStudio compiler
  if (MSVC)
    add_definitions (-D_CRT_SECURE_NO_DEPRECATE)
    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHsc /MP")
    if (${CMAKE_CL_64})
      add_definitions (-DWIN64)
    else ()
      add_definitions (-DWIN32)
    endif ()

  # MinGW compiler
  elseif (MINGW)
    add_definitions (-DWIN32)
    add_definitions (-DHAVE_GCC_DESTRUCTOR)
    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -Wno-deprecated -std=c++0x")
    set (CMAKE_C_FLAGS   "${CMAKE_C_FLAGS}   -march=native -Wno-deprecated")
  endif ()

# Linux global build options
elseif (${CMAKE_SYSTEM_NAME} MATCHES Linux)
  add_definitions (-DLINUX)
  set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC -march=native -Wno-deprecated -std=c++0x")
  set (CMAKE_C_FLAGS   "${CMAKE_C_FLAGS}   -fPIC -march=native -Wno-deprecated")

# Mac OS X global build options
elseif (${CMAKE_SYSTEM_NAME} MATCHES Darwin)
  add_definitions (-DMACOSX)
  set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Qunused-arguments -Wno-deprecated -std=c++0x -stdlib=libc++")
  set (CMAKE_C_FLAGS   "${CMAKE_C_FLAGS}   -Qunused-arguments -Wno-deprecated")
endif ()


#
# static library
#

# header search path
include_directories (${PROJECT_SOURCE_DIR}/src)
include_directories (${PROJECT_SOURCE_DIR}/external/bullet/src)
include_directories (${PROJECT_SOURCE_DIR}/../GEL/src)

# static library source files
file (GLOB_RECURSE source RELATIVE ${PROJECT_SOURCE_DIR} ${PROJECT_SOURCE_DIR}/src/*.cpp ${PROJECT_SOURCE_DIR}/src/*.h)

# static library external dependencies source files
file (GLOB_RECURSE source_collision  RELATIVE ${PROJECT_SOURCE_DIR} ${PROJECT_SOURCE_DIR}/external/bullet/src/BulletCollision/*.cpp ${PROJECT_SOURCE_DIR}/external/bullet/src/BulletCollision/*.h)
file (GLOB_RECURSE source_dynamics   RELATIVE ${PROJECT_SOURCE_DIR} ${PROJECT_SOURCE_DIR}/external/bullet/src/BulletDynamics/*.cpp  ${PROJECT_SOURCE_DIR}/external/bullet/src/BulletDynamics/*.h)
file (GLOB_RECURSE source_softbody   RELATIVE ${PROJECT_SOURCE_DIR} ${PROJECT_SOURCE_DIR}/external/bullet/src/BulletSoftBody/*.cpp  ${PROJECT_SOURCE_DIR}/external/bullet/src/BulletSoftBody/*.h)
file (GLOB_RECURSE source_linearmath RELATIVE ${PROJECT_SOURCE_DIR} ${PROJECT_SOURCE_DIR}/external/bullet/src/LinearMath/*.cpp      ${PROJECT_SOURCE_DIR}/external/bullet/src/LinearMath/*.h)

file (GLOB_RECURSE source_gel  RELATIVE ${PROJECT_SOURCE_DIR} ${PROJECT_SOURCE_DIR}/../GEL/src/*.cpp ${PROJECT_SOURCE_DIR}/../GEL/src/*.h)
# build flags

set (PROJECT_DEFINITIONS "${PROJECT_DEFINITIONS} -DBT_USE_DOUBLE_PRECISION")
add_definitions (${PROJECT_DEFINITIONS})

# group source files (MSVC likes this)
foreach (FILE ${source_collision} ${source_dynamics} ${source_softbody} ${source_linearmath})
  get_filename_component (PARENT_DIR "${FILE}" PATH)
  string (REGEX REPLACE "(\\./)?(src|include)/?" "" GROUP "${PARENT_DIR}")
  string (REPLACE "/" "\\" GROUP "${GROUP}")
  source_group ("${GROUP}" FILES "${FILE}")
endforeach ()

# platform-specific source files adjustments
# -

# internal library build flags
if (${CMAKE_BUILD_TYPE} MATCHES Debug)
  add_definitions ("-DDEBUG")
  message (USING X86_64_ASM)
endif ()
if (${CMAKE_SIZEOF_VOID_P} EQUAL 8)
    message (USING X86_64_ASM)
  add_definitions ("-DUSE_X86_64_ASM")
endif ()

# static library
add_library (chai3d-BULLET STATIC ${source} ${source_collision} ${source_dynamics} ${source_softbody} ${source_linearmath} ${source_gel})

# library exports
set (CHAI3D-BULLET_INCLUDE_DIRS "${PROJECT_SOURCE_DIR}/src ${PROJECT_SOURCE_DIR}/external/bullet/src")
set (CHAI3D-BULLET_LIBRARIES chai3d-BULLET)
set (CHAI3D-BULLET_DEFINITIONS ${PROJECT_DEFINITIONS})


#
# executables
#

# examples
if (EXISTS ${PROJECT_SOURCE_DIR}/examples)
  add_subdirectory (${PROJECT_SOURCE_DIR}/examples)
endif ()


#
# export package
#

# export package for use from the build tree
export (TARGETS chai3d-BULLET FILE ${PROJECT_BINARY_DIR}/CHAI3D-BULLETTargets.cmake)
export (PACKAGE CHAI3D-BULLET)

# configure package
set (CONF_INCLUDE_DIRS ${CHAI3D-BULLET_INCLUDE_DIRS})
set (CONF_DEFINITIONS  ${CHAI3D-BULLET_DEFINITIONS})

# create package configuration and version files
configure_file (CHAI3D-BULLETConfig.cmake.in "${PROJECT_BINARY_DIR}/CHAI3D-BULLETConfig.cmake" @ONLY)
configure_file (CHAI3D-BULLETConfigVersion.cmake.in "${PROJECT_BINARY_DIR}/CHAI3D-BULLETConfigVersion.cmake" @ONLY)