cmake_minimum_required(VERSION 2.8.11)
Project(mkxp)

## Setup options ##

option(RGSS2 "Enable RGSS2" ON)
option(FORCE32 "Force 32bit compile on 64bit OS" OFF)
set(BINDING "MRI" CACHE STRING "The Binding Type (MRI, MRUBY, NULL)")
set(EXTERNAL_LIB_PATH "" CACHE PATH "External precompiled lib prefix")

## Misc setup ##

include(cmake/PrepUtils.cmake)

set(CMAKE_INCLUDE_CURRENT_DIR ON)

IF("${CMAKE_SYSTEM}" MATCHES "Linux")
    SET(LINUX ON)
    SET(LINUX ON PARENT_SCOPE)
ENDIF()

IF(FORCE32)
    if(APPLE)
        SET(CMAKE_OSX_ARCHITECTURES "i386")
    else()
        SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")
        SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")
    endif()
ENDIF()

set(CMAKE_OSX_DEPLOYMENT_TARGET 10.6)

IF(LINUX)
    if(CMAKE_SIZEOF_VOID_P MATCHES "8" AND NOT(FORCE32) )
        set(CMAKE_EXECUTABLE_SUFFIX ".bin.x86_64")
        set(BIN_RPATH "\$ORIGIN/lib64")
    else()
        set(CMAKE_EXECUTABLE_SUFFIX ".bin.x86")
        set(BIN_RPATH "\$ORIGIN/lib")
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_FILE_OFFSET_BITS=64")
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_FILE_OFFSET_BITS=64")
    endif()
elseif(APPLE)
    SET(BIN_RPATH "@executable_path/../Frameworks")
endif()

set(CMAKE_SKIP_BUILD_RPATH TRUE)
set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
set(CMAKE_INSTALL_RPATH ${BIN_RPATH})
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH FALSE)

## Locate core libs ##

find_package(PkgConfig REQUIRED)

if (EXTERNAL_LIB_PATH)
    set(CMAKE_PREFIX_PATH ${EXTERNAL_LIB_PATH})
    if(EXISTS "${EXTERNAL_LIB_PATH}/lib/pkgconfig/")
        SET(ENV{PKG_CONFIG_PATH} "${EXTERNAL_LIB_PATH}/lib/pkgconfig/")
    endif()
    if(APPLE)
        set(PLATFORM_SHARED_LIBS 
            libSDL2.dylib libSDL2_image-2.0.0.dylib libSDL2_ttf-2.0.0.dylib libSDL_sound-1.0.1.dylib
            libfreetype.6.dylib libsigc-2.0.0.dylib
            CACHE STRING "List of shared libraries that need to be copied into the OS X bundle")
        foreach(lib ${PLATFORM_SHARED_LIBS})
            if(EXISTS ${EXTERNAL_LIB_PATH}/lib/${lib})
                list(APPEND PLATFORM_COPY_LIBS
                    ${EXTERNAL_LIB_PATH}/lib/${lib}
                )
            endif()
        endforeach()
    endif()
endif()

pkg_check_modules(SIGCXX        REQUIRED sigc++-2.0)
pkg_check_modules(PIXMAN        REQUIRED pixman-1)
pkg_check_modules(PHYSFS        REQUIRED physfs>=2.1)
pkg_check_modules(SDL2          REQUIRED sdl2)
pkg_check_modules(SDL2_TTF      REQUIRED SDL2_ttf)
pkg_check_modules(SDL2_IMAGE    REQUIRED SDL2_image)
pkg_check_modules(SDL_SOUND     REQUIRED SDL_sound)

find_package(GLEW 1.9.0 REQUIRED)
find_package(Boost 1.49 COMPONENTS program_options REQUIRED)
find_package(OpenAL REQUIRED)
find_package(OpenGL REQUIRED)
find_package(zlib REQUIRED)

## Setup main source ##

set(MAIN_HEADERS
   	src/quadarray.h
	src/audio.h
	src/binding.h
	src/bitmap.h
	src/disposable.h
	src/etc.h
	src/etc-internal.h
	src/eventthread.h
	src/flashable.h
	src/font.h
	src/input.h
	src/plane.h
	src/scene.h
	src/sprite.h
	src/table.h
	src/texpool.h
	src/tilequad.h
	src/transform.h
	src/viewport.h
	src/window.h
	src/serializable.h
	src/shader.h
	src/glstate.h
	src/quad.h
	src/tilemap.h
	src/graphics.h
	src/debuglogger.h
	src/global-ibo.h
	src/exception.h
	src/filesystem.h
	src/serial-util.h
	src/intrulist.h
	src/binding.h
	src/gl-util.h
	src/util.h
	src/config.h
	src/tileatlas.h
	src/perftimer.h
	src/sharedstate.h
	src/al-util.h
   	src/boost-hash.h
	src/debugwriter.h
)

set(MAIN_SOURCE
	src/main.cpp
	src/audio.cpp
	src/bitmap.cpp
	src/eventthread.cpp
	src/filesystem.cpp
	src/font.cpp
	src/input.cpp
	src/plane.cpp
	src/scene.cpp
	src/sprite.cpp
	src/table.cpp
	src/tilequad.cpp
	src/viewport.cpp
	src/window.cpp
	src/texpool.cpp
	src/shader.cpp
	src/glstate.cpp
	src/tilemap.cpp
	src/autotiles.cpp
	src/graphics.cpp
	src/debuglogger.cpp
	src/etc.cpp
	src/config.cpp
	src/tileatlas.cpp
	src/perftimer.cpp
	src/sharedstate.cpp
)

## Setup embedded source ##

set(EMBEDDED_INPUT
    shader/transSimple.frag
    shader/trans.frag
    shader/hue.frag
    shader/sprite.frag
    shader/plane.frag
    shader/bitmapBlit.frag
    shader/simple.frag
    shader/simpleColor.frag
    shader/simpleAlpha.frag
    shader/flashMap.frag
    shader/simple.vert
    shader/simpleColor.vert
    shader/sprite.vert
    assets/liberation.ttf
)

if (RGSS2)
    list(APPEND EMBEDDED_INPUT
        shader/blur.frag
        shader/blurH.vert
        shader/blurV.vert
        shader/simpleMatrix.vert
    )
endif()

## Process Embeddeds ##

find_program(XXD_EXE xxd
    DOC "Location of the xxd executable"
)

macro(ProcessWithXXD outvar inputfile outdir)
    get_filename_component(basefile ${inputfile} NAME)
    set(outputfile ${outdir}/${basefile}.xxd)
    set_source_files_properties(${outputfile} PROPERTIES HEADER_ONLY TRUE)
    add_custom_command(
        OUTPUT ${outputfile}
        COMMAND ${XXD_EXE} -i ${inputfile} ${outputfile}
        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
        DEPENDS ${inputfile}
        COMMENT "Generating XXD for ${inputfile}"
    )
    list(APPEND ${outvar}
        ${outputfile}
    )
endmacro()

file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/xxdhack)
include_directories(
    ${CMAKE_CURRENT_BINARY_DIR}/xxdhack
)

foreach(item ${EMBEDDED_INPUT})
    ProcessWithXXD(EMBEDDED_SOURCE ${item} ${CMAKE_CURRENT_BINARY_DIR})
endforeach()

## Setup binding source ##

if (BINDING STREQUAL "MRI")
    set(MRIVERSION "2.0" CACHE STRING "Version of MRI to link with")
    pkg_check_modules(MRI REQUIRED ruby-${MRIVERSION})
    list(APPEND DEFINES
        BINDING_MRI
    )
    set(BINDING_HEADERS
        binding-mri/binding-util.h
        binding-mri/binding-types.h
        binding-mri/serializable-binding.h
        binding-mri/disposable-binding.h
        binding-mri/sceneelement-binding.h
        binding-mri/viewportelement-binding.h
        binding-mri/flashable-binding.h
    )
    set(BINDING_SOURCE
        binding-mri/binding-mri.cpp
        binding-mri/binding-util.cpp
        binding-mri/table-binding.cpp
        binding-mri/etc-binding.cpp
        binding-mri/bitmap-binding.cpp
        binding-mri/font-binding.cpp
        binding-mri/graphics-binding.cpp
        binding-mri/input-binding.cpp
        binding-mri/sprite-binding.cpp
        binding-mri/viewport-binding.cpp
        binding-mri/plane-binding.cpp
        binding-mri/window-binding.cpp
        binding-mri/tilemap-binding.cpp
        binding-mri/audio-binding.cpp
        binding-mri/module_rpg.cpp
        binding-mri/filesystem-binding.cpp
    )
elseif(BINDING STREQUAL "MRUBY")
    list(APPEND DEFINES
        BINDING_MRUBY
    )
    set(BINDING_HEADERS
        binding-mruby/binding-util.h
        binding-mruby/disposable-binding.h
        binding-mruby/flashable-binding.h
        binding-mruby/binding-types.h
        binding-mruby/sceneelement-binding.h
        binding-mruby/viewportelement-binding.h
        binding-mruby/serializable-binding.h
        binding-mruby/mrb-ext/file.h
        binding-mruby/mrb-ext/rwmem.h
        binding-mruby/mrb-ext/marshal.h
    )
    set(BINDING_SOURCE
        binding-mruby/binding-mruby.cpp
        binding-mruby/binding-util.cpp
        binding-mruby/window-binding.cpp
        binding-mruby/bitmap-binding.cpp
        binding-mruby/sprite-binding.cpp
        binding-mruby/font-binding.cpp
        binding-mruby/viewport-binding.cpp
        binding-mruby/plane-binding.cpp
        binding-mruby/audio-binding.cpp
        binding-mruby/tilemap-binding.cpp
        binding-mruby/etc-binding.cpp
        binding-mruby/graphics-binding.cpp
        binding-mruby/input-binding.cpp
        binding-mruby/table-binding.cpp
        binding-mruby/module_rpg.c
        binding-mruby/mrb-ext/file.cpp
        binding-mruby/mrb-ext/marshal.cpp
        binding-mruby/mrb-ext/rwmem.cpp
        binding-mruby/mrb-ext/kernel.cpp
        binding-mruby/mrb-ext/time.cpp
    )
elseif(BINDING STREQUAL "NULL")
    set(BINDING_SOURCE
        binding-null/binding-null.cpp
    )
else()
    message(FATAL_ERROR "Must choose a valid binding type.  MRI, MRUBY, or NULL")
endif()

## Setup main executable ##

if(APPLE)
    find_library(CARBON_LIBRARY Carbon)
    find_library(IOKIT_LIBRARY IOKit)
    mark_as_advanced(CARBON_LIBRARY IOKIT_LIBRARY)
    list(APPEND PLATFORM_LIBRARIES
        ${CARBON_LIBRARY}
        ${IOKIT_LIBRARY}
    )
endif()

link_directories(
    ${SIGCXX_LIBRARY_DIRS}
    ${PIXMAN_LIBRARY_DIRS}
    ${PHYSFS_LIBRARY_DIRS}
    ${SDL2_LIBRARY_DIRS} # Blindly assume other SDL bits are in same directory
    ${Boost_LIBRARY_DIR}
    ${MRI_LIBDIR}
)

add_executable(${PROJECT_NAME} MACOSX_BUNDLE
    ${MAIN_HEADERS}
    ${MAIN_SOURCE}
    ${BINDING_SOURCE}
    ${EMBEDDED_SOURCE}
)

target_compile_definitions(${PROJECT_NAME} PRIVATE
    ${DEFINES}
)
target_include_directories(${PROJECT_NAME} PRIVATE
    src
    ${SIGCXX_INCLUDE_DIRS}
    ${PIXMAN_INCLUDE_DIRS}
    ${PHYSFS_INCLUDE_DIRS}
    ${SDL2_INCLUDE_DIRS} # Blindly assume other SDL bits are in same directory
    ${Boost_INCLUDE_DIR}
    ${GLEW_INCLUDE_DIR}/GL
    ${MRI_INCLUDE_DIRS}
    ${OPENAL_INCLUDE_DIR}
)

target_link_libraries(${PROJECT_NAME}
    ${SIGCXX_LIBRARIES}
    ${SDL2_LIBRARIES}
    ${SDL2_IMAGE_LIBRARIES}
    ${SDL2_TTF_LIBRARIES}
    ${SDL_SOUND_LIBRARIES}
    ${PHYSFS_LIBRARIES}
    ${PIXMAN_LIBRARIES}
    ${Boost_LIBRARIES}
    ${MRI_LIBRARIES}
    ${OPENAL_LIBRARY}
    ${OPENGL_gl_LIBRARY}
    ${GLEW_LIBRARY}
    ${ZLIB_LIBRARY}

    ${PLATFORM_LIBRARIES}
)

PostBuildMacBundle(${PROJECT_NAME} "" "${PLATFORM_COPY_LIBS}")