################################################################################
# Copyright 1998-2013 by authors (see AUTHORS.txt)
#
#   This file is part of LuxRender.
#
# 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.
################################################################################

include(FindPkgMacros)
getenv_path(LuxRays_DEPENDENCIES_DIR)

################################################################################
#
# Core dependencies
#
################################################################################

# Find threading library
find_package(Threads REQUIRED)

find_package(OpenImageIO REQUIRED)
include_directories(SYSTEM ${OPENIMAGEIO_INCLUDE_DIR})
find_package(OpenEXR REQUIRED)

if(NOT APPLE)
    # Apple has these available hardcoded and matched in macos repo, see Config_OSX.cmake

    include_directories(SYSTEM ${OPENEXR_INCLUDE_DIRS})
    find_package(TIFF REQUIRED)
    include_directories(SYSTEM ${TIFF_INCLUDE_DIR})
    find_package(JPEG REQUIRED)
    include_directories(SYSTEM ${JPEG_INCLUDE_DIR})
    find_package(PNG REQUIRED)
    include_directories(SYSTEM ${PNG_PNG_INCLUDE_DIR})
	# Find Python Libraries
	find_package(PythonLibs)
endif()

include_directories (${PYTHON_INCLUDE_DIRS})

# Find Boost
set(Boost_USE_STATIC_LIBS       OFF)
set(Boost_USE_MULTITHREADED     ON)
set(Boost_USE_STATIC_RUNTIME    OFF)
set(BOOST_ROOT                  "${BOOST_SEARCH_PATH}")
#set(Boost_DEBUG                 ON)
set(Boost_MINIMUM_VERSION       "1.44.0")

set(Boost_ADDITIONAL_VERSIONS "1.47.0" "1.46.1" "1.46" "1.46.0" "1.45" "1.45.0" "1.44" "1.44.0")

set(LUXRAYS_BOOST_COMPONENTS thread program_options filesystem serialization iostreams regex system python)
find_package(Boost ${Boost_MINIMUM_VERSION} COMPONENTS ${LUXRAYS_BOOST_COMPONENTS})
if (NOT Boost_FOUND)
        # Try again with the other type of libs
        if(Boost_USE_STATIC_LIBS)
                set(Boost_USE_STATIC_LIBS)
        else()
                set(Boost_USE_STATIC_LIBS OFF)
        endif()
        find_package(Boost ${Boost_MINIMUM_VERSION} COMPONENTS ${LUXRAYS_BOOST_COMPONENTS})
endif()

if (Boost_FOUND)
	include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
	link_directories(${Boost_LIBRARY_DIRS})
	# Don't use old boost versions interfaces
	ADD_DEFINITIONS(-DBOOST_FILESYSTEM_NO_DEPRECATED)
endif ()


# OpenGL
find_package(OpenGL)

if (OPENGL_FOUND)
	include_directories(SYSTEM ${OPENGL_INCLUDE_PATH})
endif()

set(GLEW_ROOT                  "${GLEW_SEARCH_PATH}")
if(NOT APPLE)
	find_package(GLEW)
endif()

# GLEW
if (GLEW_FOUND)
	include_directories(SYSTEM ${GLEW_INCLUDE_PATH})
endif ()

set(GLUT_ROOT                  "${GLUT_SEARCH_PATH}")
find_package(GLUT)

# GLUT
if (GLUT_FOUND)
	include_directories(SYSTEM ${GLUT_INCLUDE_PATH})
endif ()

# OpenCL
set(OPENCL_ROOT                "${OPENCL_SEARCH_PATH}")
find_package(OpenCL)

if (OPENCL_FOUND)
	include_directories(SYSTEM ${OPENCL_INCLUDE_DIR} ${OPENCL_C_INCLUDE_DIR})
endif ()

# Find BISON
IF (NOT BISON_NOT_AVAILABLE)
	find_package(BISON)
	IF (NOT BISON_FOUND)
		MESSAGE(WARNING "bison not found - try compilation using already generated files")
		SET(BISON_NOT_AVAILABLE 1)
	ENDIF (NOT BISON_FOUND)
ENDIF (NOT BISON_NOT_AVAILABLE)

# Find FLEX
IF (NOT FLEX_NOT_AVAILABLE)
	find_package(FLEX)
	IF (NOT FLEX_FOUND)
		MESSAGE(WARNING "flex not found - try compilation using already generated files")
		SET(FLEX_NOT_AVAILABLE 1)
	ENDIF (NOT FLEX_FOUND)
ENDIF (NOT FLEX_NOT_AVAILABLE)