230 lines
6.8 KiB
CMake
230 lines
6.8 KiB
CMake
#.rst:
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# FindOpenGL
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# ----------
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#
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# FindModule for OpenGL and GLU.
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#
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# IMPORTED Targets
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# ^^^^^^^^^^^^^^^^
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#
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# This module defines the :prop_tgt:`IMPORTED` targets:
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#
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# ``OpenGL::GL``
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# Defined if the system has OpenGL.
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# ``OpenGL::GLU``
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# Defined if the system has GLU.
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#
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# Result Variables
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# ^^^^^^^^^^^^^^^^
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#
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# This module sets the following variables:
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#
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# ``OPENGL_FOUND``
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# True, if the system has OpenGL.
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# ``OPENGL_XMESA_FOUND``
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# True, if the system has XMESA.
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# ``OPENGL_GLU_FOUND``
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# True, if the system has GLU.
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# ``OPENGL_INCLUDE_DIR``
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# Path to the OpenGL include directory.
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# ``OPENGL_LIBRARIES``
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# Paths to the OpenGL and GLU libraries.
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#
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# If you want to use just GL you can use these values:
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#
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# ``OPENGL_gl_LIBRARY``
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# Path to the OpenGL library.
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# ``OPENGL_glu_LIBRARY``
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# Path to the GLU library.
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#
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# OSX Specific
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# ^^^^^^^^^^^^
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#
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# On OSX default to using the framework version of OpenGL. People will
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# have to change the cache values of OPENGL_glu_LIBRARY and
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# OPENGL_gl_LIBRARY to use OpenGL with X11 on OSX.
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#=============================================================================
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# Copyright 2001-2009 Kitware, Inc.
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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set(_OpenGL_REQUIRED_VARS OPENGL_gl_LIBRARY)
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if (CYGWIN)
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find_path(OPENGL_INCLUDE_DIR GL/gl.h )
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list(APPEND _OpenGL_REQUIRED_VARS OPENGL_INCLUDE_DIR)
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find_library(OPENGL_gl_LIBRARY opengl32 )
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find_library(OPENGL_glu_LIBRARY glu32 )
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elseif (WIN32)
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if(BORLAND)
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set (OPENGL_gl_LIBRARY import32 CACHE STRING "OpenGL library for win32")
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set (OPENGL_glu_LIBRARY import32 CACHE STRING "GLU library for win32")
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else()
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set (OPENGL_gl_LIBRARY opengl32 CACHE STRING "OpenGL library for win32")
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set (OPENGL_glu_LIBRARY glu32 CACHE STRING "GLU library for win32")
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endif()
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elseif (APPLE)
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find_library(OPENGL_gl_LIBRARY OpenGL DOC "OpenGL lib for OSX")
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find_library(OPENGL_glu_LIBRARY AGL DOC "AGL lib for OSX")
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find_path(OPENGL_INCLUDE_DIR OpenGL/gl.h DOC "Include for OpenGL on OSX")
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list(APPEND _OpenGL_REQUIRED_VARS OPENGL_INCLUDE_DIR)
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else()
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if (CMAKE_SYSTEM_NAME MATCHES "HP-UX")
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# Handle HP-UX cases where we only want to find OpenGL in either hpux64
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# or hpux32 depending on if we're doing a 64 bit build.
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if(CMAKE_SIZEOF_VOID_P EQUAL 4)
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set(_OPENGL_LIB_PATH
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/opt/graphics/OpenGL/lib/hpux32/)
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else()
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set(_OPENGL_LIB_PATH
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/opt/graphics/OpenGL/lib/hpux64/
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/opt/graphics/OpenGL/lib/pa20_64)
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endif()
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elseif(CMAKE_SYSTEM_NAME STREQUAL Haiku)
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set(_OPENGL_LIB_PATH
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/boot/develop/lib/x86)
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set(_OPENGL_INCLUDE_PATH
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/boot/develop/headers/os/opengl)
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endif()
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# The first line below is to make sure that the proper headers
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# are used on a Linux machine with the NVidia drivers installed.
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# They replace Mesa with NVidia's own library but normally do not
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# install headers and that causes the linking to
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# fail since the compiler finds the Mesa headers but NVidia's library.
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# Make sure the NVIDIA directory comes BEFORE the others.
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# - Atanas Georgiev <atanas@cs.columbia.edu>
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find_path(OPENGL_INCLUDE_DIR GL/gl.h
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/usr/share/doc/NVIDIA_GLX-1.0/include
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/usr/openwin/share/include
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/opt/graphics/OpenGL/include /usr/X11R6/include
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${_OPENGL_INCLUDE_PATH}
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)
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list(APPEND _OpenGL_REQUIRED_VARS OPENGL_INCLUDE_DIR)
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find_path(OPENGL_xmesa_INCLUDE_DIR GL/xmesa.h
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/usr/share/doc/NVIDIA_GLX-1.0/include
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/usr/openwin/share/include
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/opt/graphics/OpenGL/include /usr/X11R6/include
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)
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find_library(OPENGL_gl_LIBRARY
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NAMES GL MesaGL
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PATHS /opt/graphics/OpenGL/lib
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/usr/openwin/lib
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/usr/shlib /usr/X11R6/lib
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${_OPENGL_LIB_PATH}
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)
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unset(_OPENGL_INCLUDE_PATH)
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unset(_OPENGL_LIB_PATH)
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# On Unix OpenGL most certainly always requires X11.
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# Feel free to tighten up these conditions if you don't
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# think this is always true.
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if (OPENGL_gl_LIBRARY)
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if(NOT X11_FOUND)
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include(${CMAKE_CURRENT_LIST_DIR}/FindX11.cmake)
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endif()
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if (X11_FOUND)
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set (OPENGL_LIBRARIES ${X11_LIBRARIES})
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endif ()
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endif ()
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find_library(OPENGL_glu_LIBRARY
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NAMES GLU MesaGLU
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PATHS ${OPENGL_gl_LIBRARY}
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/opt/graphics/OpenGL/lib
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/usr/openwin/lib
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/usr/shlib /usr/X11R6/lib
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)
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endif ()
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if(OPENGL_gl_LIBRARY)
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if(OPENGL_xmesa_INCLUDE_DIR)
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set( OPENGL_XMESA_FOUND "YES" )
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else()
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set( OPENGL_XMESA_FOUND "NO" )
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endif()
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set( OPENGL_LIBRARIES ${OPENGL_gl_LIBRARY} ${OPENGL_LIBRARIES})
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if(OPENGL_glu_LIBRARY)
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set( OPENGL_GLU_FOUND "YES" )
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set( OPENGL_LIBRARIES ${OPENGL_glu_LIBRARY} ${OPENGL_LIBRARIES} )
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else()
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set( OPENGL_GLU_FOUND "NO" )
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endif()
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# This deprecated setting is for backward compatibility with CMake1.4
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set (OPENGL_LIBRARY ${OPENGL_LIBRARIES})
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endif()
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# This deprecated setting is for backward compatibility with CMake1.4
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set(OPENGL_INCLUDE_PATH ${OPENGL_INCLUDE_DIR})
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# handle the QUIETLY and REQUIRED arguments and set OPENGL_FOUND to TRUE if
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# all listed variables are TRUE
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenGL REQUIRED_VARS ${_OpenGL_REQUIRED_VARS})
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unset(_OpenGL_REQUIRED_VARS)
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# OpenGL:: targets
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if(OPENGL_FOUND)
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if(NOT TARGET OpenGL::GL)
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add_library(OpenGL::GL UNKNOWN IMPORTED)
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set_target_properties(OpenGL::GL PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES "${OPENGL_INCLUDE_DIR}")
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if(OPENGL_gl_LIBRARY MATCHES "/([^/]+)\\.framework$")
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set_target_properties(OpenGL::GL PROPERTIES
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IMPORTED_LOCATION "${OPENGL_gl_LIBRARY}/${CMAKE_MATCH_1}")
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else()
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set_target_properties(OpenGL::GL PROPERTIES
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IMPORTED_LOCATION "${OPENGL_gl_LIBRARY}")
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endif()
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endif()
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if(OPENGL_GLU_FOUND AND NOT TARGET OpenGL::GLU)
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add_library(OpenGL::GLU UNKNOWN IMPORTED)
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set_target_properties(OpenGL::GLU PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES "${OPENGL_INCLUDE_DIR}"
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INTERFACE_LINK_LIBRARIES OpenGL::GL)
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if(OPENGL_glu_LIBRARY MATCHES "/([^/]+)\\.framework$")
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set_target_properties(OpenGL::GLU PROPERTIES
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IMPORTED_LOCATION "${OPENGL_glu_LIBRARY}/${CMAKE_MATCH_1}")
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else()
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set_target_properties(OpenGL::GLU PROPERTIES
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IMPORTED_LOCATION "${OPENGL_glu_LIBRARY}")
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endif()
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endif()
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endif()
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mark_as_advanced(
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OPENGL_INCLUDE_DIR
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OPENGL_xmesa_INCLUDE_DIR
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OPENGL_glu_LIBRARY
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OPENGL_gl_LIBRARY
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)
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