
cmake_policy(SET CMP0003 NEW)
cmake_policy(SET CMP0005 NEW)

cmake_minimum_required(VERSION 2.8)

list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/../../..//build_files/cmake/Modules")

set(WITH_GUARDEDALLOC ON)

# -----------------------------------------------------------------------------
# Macros


# stub macro, does nothing
macro(blender_add_lib
  name
  sources
  includes
  includes_sys
  )

endmacro()

# suffix relative paths so we can use external cmake files
macro(suffix_relpaths
  new_files files prefix)

  set(${new_files})
  foreach(_file ${files})
    if(IS_ABSOLUTE _file)
      list(APPEND ${new_files} ${_file})
    else()
      list(APPEND ${new_files} "${prefix}${_file}")
    endif()
  endforeach()
  unset(_file)
endmacro()

macro(data_to_c
      file_from file_to
      list_to_add)

  list(APPEND ${list_to_add} ${file_to})

  get_filename_component(_file_to_path ${file_to} PATH)

  add_custom_command(
    OUTPUT ${file_to}
    COMMAND ${CMAKE_COMMAND} -E make_directory ${_file_to_path}
    COMMAND ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/datatoc ${file_from} ${file_to}
    DEPENDS ${file_from} datatoc)
  unset(_file_to_path)
endmacro()

# -----------------------------------------------------------------------------
# Defines

# set the endian define
if(MSVC)
  # for some reason this fails on msvc
  add_definitions(-D__LITTLE_ENDIAN__)
else()
  include(TestBigEndian)
  test_big_endian(_SYSTEM_BIG_ENDIAN)
  if(_SYSTEM_BIG_ENDIAN)
    add_definitions(-D__BIG_ENDIAN__)
  else()
    add_definitions(-D__LITTLE_ENDIAN__)
  endif()
  unset(_SYSTEM_BIG_ENDIAN)
endif()

# -----------------------------------------------------------------------------
# Libraries

if(UNIX AND NOT APPLE)
  set(WITH_X11 ON)
endif()
# for now... default to this
add_definitions(-DWITH_GL_PROFILE_COMPAT)
# BLF needs this to ignore GPU library
add_definitions(-DBLF_STANDALONE)

# ghost
include(${CMAKE_SOURCE_DIR}/../CMakeLists.txt)
suffix_relpaths(INC_NEW "${INC}" "../")
suffix_relpaths(SRC_NEW "${SRC}" "../")
include_directories(${INC_NEW})
add_library(ghost_lib ${SRC_NEW})

# string
include(${CMAKE_SOURCE_DIR}/../../string/CMakeLists.txt)
suffix_relpaths(INC_NEW "${INC}" "../../string/")
suffix_relpaths(SRC_NEW "${SRC}" "../../string/")
include_directories(${INC_NEW})
add_library(string_lib ${SRC_NEW})

# guardedalloc
include(${CMAKE_SOURCE_DIR}/../../guardedalloc/CMakeLists.txt)
suffix_relpaths(INC_NEW "${INC}" "../../guardedalloc/")
suffix_relpaths(SRC_NEW "${SRC}" "../../guardedalloc/")
include_directories(${INC_NEW})
add_library(guardedalloc_lib ${SRC_NEW})

# blenfont
include(${CMAKE_SOURCE_DIR}/../../../source/blender/blenfont/CMakeLists.txt)
suffix_relpaths(INC_NEW "${INC}" "../../../source/blender/blenfont/")
suffix_relpaths(SRC_NEW "${SRC}" "../../../source/blender/blenfont/")
include_directories(${INC_NEW})
add_library(blenfont_lib ${SRC_NEW})

# wcwidth
include(${CMAKE_SOURCE_DIR}/../../../extern/wcwidth/CMakeLists.txt)
suffix_relpaths(INC_NEW "${INC}" "../../../extern/wcwidth/")
suffix_relpaths(SRC_NEW "${SRC}" "../../../extern/wcwidth/")
include_directories(${INC_NEW})
add_library(wcwidth_lib ${SRC_NEW})

# glew-mx
include(${CMAKE_SOURCE_DIR}/../../../intern/glew-mx/CMakeLists.txt)
suffix_relpaths(INC_NEW "${INC}" "../../../intern/glew-mx/")
suffix_relpaths(SRC_NEW "${SRC}" "../../../intern/glew-mx/")
include_directories(${INC_NEW})
add_library(glewmx_lib ${SRC_NEW})

# grr, blenfont needs BLI
include_directories(
  "../../../source/blender/blenlib"
)
add_library(bli_lib
  "../../../source/blender/blenlib/intern/fileops.c"
  "../../../source/blender/blenlib/intern/gsqueue.c"
  "../../../source/blender/blenlib/intern/rct.c"
  "../../../source/blender/blenlib/intern/string.c"
  "../../../source/blender/blenlib/intern/string_utf8.c"
  "../../../source/blender/blenlib/intern/listbase.c"
  "../../../source/blender/blenlib/intern/math_color.c"
  "../../../source/blender/blenlib/intern/storage.c"
  "../../../source/blender/blenlib/intern/task.c"
  "../../../source/blender/blenlib/intern/threads.c"
  "../../../source/blender/blenlib/intern/time.c"
  "../../../source/blender/blenlib/intern/path_util.c"
  "../../../source/blender/blenlib/intern/BLI_dynstr.c"
  "../../../source/blender/blenlib/intern/BLI_linklist.c"
  "../../../source/blender/blenlib/intern/BLI_memarena.c"
  "../../../source/blender/blenlib/intern/BLI_mempool.c"
  "../../../source/blender/blenlib/intern/system.c"
)

set(PLATFORM_CGLAGS)

find_package(OpenGL REQUIRED)

find_package(Freetype REQUIRED)

find_package(ZLIB REQUIRED)

include_directories(${CMAKE_SOURCE_DIR}/../)
include_directories(${OPENGL_INCLUDE_DIR})
include_directories(${FREETYPE_INCLUDE_DIRS})
include_directories(${CMAKE_SOURCE_DIR}/../../../source/blender/blenfont)

if(CMAKE_COMPILER_IS_GNUCC)
  set(PLATFORM_CFLAGS "-funsigned-char")
endif()

if(UNIX AND NOT APPLE)
  find_package(X11 REQUIRED)
  find_package(GLEW)

  if(NOT GLEW_FOUND)
    message(FATAL_ERROR "GLEW is required to build blender, install it or disable WITH_SYSTEM_GLEW")
  endif()

  set(PLATFORM_LINKLIBS
    ${X11_X11_LIB}
    ${X11_Xinput_LIB}
    ${GLEW_LIBRARY}
    -lpthread
  )
else()
  # set(GLEW_LIBRARY "")  # unused
  set(GLEW_INCLUDE_PATH "${CMAKE_SOURCE_DIR}/extern/glew/include")
endif()

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${PLATFORM_CFLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${PLATFORM_CFLAGS}")

# -----------------------------------------------------------------------------
# Executables

# DataToC
add_executable(datatoc
    ${CMAKE_SOURCE_DIR}/../../../source/blender/datatoc/datatoc.c)

# Gears (C)
add_executable(gears_c
    ${CMAKE_SOURCE_DIR}/gears/GHOST_C-Test.c)

target_link_libraries(gears_c
    ghost_lib
    glewmx_lib
    string_lib
    ${OPENGL_gl_LIBRARY}
    ${CMAKE_DL_LIBS}
    ${PLATFORM_LINKLIBS}
    )


# Gears (C++)
add_executable(gears_cpp
    ${CMAKE_SOURCE_DIR}/gears/GHOST_Test.cpp)

target_link_libraries(gears_cpp
    ghost_lib
    glewmx_lib
    string_lib
    ${OPENGL_gl_LIBRARY}
    ${CMAKE_DL_LIBS}
    ${PLATFORM_LINKLIBS}
    )


# MultiTest (C)
set(data_to_c_files)
data_to_c(${CMAKE_SOURCE_DIR}/../../../release/datafiles/bfont.ttf
          ${CMAKE_CURRENT_BINARY_DIR}/bfont.ttf.c data_to_c_files)

add_executable(multitest_c
  ${CMAKE_SOURCE_DIR}/multitest/Basic.c
  ${CMAKE_SOURCE_DIR}/multitest/EventToBuf.c
  ${CMAKE_SOURCE_DIR}/multitest/MultiTest.c
  ${CMAKE_SOURCE_DIR}/multitest/ScrollBar.c
  ${CMAKE_SOURCE_DIR}/multitest/Util.c
  ${CMAKE_SOURCE_DIR}/multitest/WindowData.c
  ${CMAKE_SOURCE_DIR}/multitest/stubs.c
  ${data_to_c_files}
)


target_link_libraries(multitest_c
    blenfont_lib
    bli_lib
    ghost_lib
    glewmx_lib
    string_lib
    guardedalloc_lib
    wcwidth_lib
    ${OPENGL_gl_LIBRARY}
    ${FREETYPE_LIBRARY}
    ${ZLIB_LIBRARIES}
    ${CMAKE_DL_LIBS}
    ${PLATFORM_LINKLIBS}
    )
