# Distributed under the OSI-approved BSD 3-Clause License. See accompanying | |
# file Copyright.txt or https://cmake.org/licensing for details. | |
#.rst: | |
# FindOpenGL | |
# ---------- | |
# | |
# FindModule for OpenGL and GLU. | |
# | |
# IMPORTED Targets | |
# ^^^^^^^^^^^^^^^^ | |
# | |
# This module defines the :prop_tgt:`IMPORTED` targets: | |
# | |
# ``OpenGL::GL`` | |
# Defined if the system has OpenGL. | |
# ``OpenGL::GLU`` | |
# Defined if the system has GLU. | |
# | |
# Result Variables | |
# ^^^^^^^^^^^^^^^^ | |
# | |
# This module sets the following variables: | |
# | |
# ``OPENGL_FOUND`` | |
# True, if the system has OpenGL. | |
# ``OPENGL_XMESA_FOUND`` | |
# True, if the system has XMESA. | |
# ``OPENGL_GLU_FOUND`` | |
# True, if the system has GLU. | |
# ``OPENGL_INCLUDE_DIR`` | |
# Path to the OpenGL include directory. | |
# ``OPENGL_LIBRARIES`` | |
# Paths to the OpenGL and GLU libraries. | |
# | |
# If you want to use just GL you can use these values: | |
# | |
# ``OPENGL_gl_LIBRARY`` | |
# Path to the OpenGL library. | |
# ``OPENGL_glu_LIBRARY`` | |
# Path to the GLU library. | |
# | |
# OSX Specific | |
# ^^^^^^^^^^^^ | |
# | |
# On OSX default to using the framework version of OpenGL. People will | |
# have to change the cache values of OPENGL_glu_LIBRARY and | |
# OPENGL_gl_LIBRARY to use OpenGL with X11 on OSX. | |
set(_OpenGL_REQUIRED_VARS OPENGL_gl_LIBRARY) | |
if (CYGWIN) | |
find_path(OPENGL_INCLUDE_DIR GL/gl.h ) | |
list(APPEND _OpenGL_REQUIRED_VARS OPENGL_INCLUDE_DIR) | |
find_library(OPENGL_gl_LIBRARY opengl32 ) | |
find_library(OPENGL_glu_LIBRARY glu32 ) | |
elseif (WIN32) | |
if(BORLAND) | |
set (OPENGL_gl_LIBRARY import32 CACHE STRING "OpenGL library for win32") | |
set (OPENGL_glu_LIBRARY import32 CACHE STRING "GLU library for win32") | |
else() | |
set (OPENGL_gl_LIBRARY opengl32 CACHE STRING "OpenGL library for win32") | |
set (OPENGL_glu_LIBRARY glu32 CACHE STRING "GLU library for win32") | |
endif() | |
elseif (APPLE) | |
# The OpenGL.framework provides both gl and glu | |
find_library(OPENGL_gl_LIBRARY OpenGL DOC "OpenGL library for OS X") | |
find_library(OPENGL_glu_LIBRARY OpenGL DOC | |
"GLU library for OS X (usually same as OpenGL library)") | |
find_path(OPENGL_INCLUDE_DIR OpenGL/gl.h DOC "Include for OpenGL on OS X") | |
list(APPEND _OpenGL_REQUIRED_VARS OPENGL_INCLUDE_DIR) | |
else() | |
if (CMAKE_SYSTEM_NAME MATCHES "HP-UX") | |
# Handle HP-UX cases where we only want to find OpenGL in either hpux64 | |
# or hpux32 depending on if we're doing a 64 bit build. | |
if(CMAKE_SIZEOF_VOID_P EQUAL 4) | |
set(_OPENGL_LIB_PATH | |
/opt/graphics/OpenGL/lib/hpux32/) | |
else() | |
set(_OPENGL_LIB_PATH | |
/opt/graphics/OpenGL/lib/hpux64/ | |
/opt/graphics/OpenGL/lib/pa20_64) | |
endif() | |
elseif(CMAKE_SYSTEM_NAME STREQUAL Haiku) | |
set(_OPENGL_LIB_PATH | |
/boot/develop/lib/x86) | |
set(_OPENGL_INCLUDE_PATH | |
/boot/develop/headers/os/opengl) | |
endif() | |
# The first line below is to make sure that the proper headers | |
# are used on a Linux machine with the NVidia drivers installed. | |
# They replace Mesa with NVidia's own library but normally do not | |
# install headers and that causes the linking to | |
# fail since the compiler finds the Mesa headers but NVidia's library. | |
# Make sure the NVIDIA directory comes BEFORE the others. | |
# - Atanas Georgiev <atanas@cs.columbia.edu> | |
find_path(OPENGL_INCLUDE_DIR GL/gl.h | |
/usr/share/doc/NVIDIA_GLX-1.0/include | |
/usr/openwin/share/include | |
/opt/graphics/OpenGL/include /usr/X11R6/include | |
${_OPENGL_INCLUDE_PATH} | |
) | |
list(APPEND _OpenGL_REQUIRED_VARS OPENGL_INCLUDE_DIR) | |
find_path(OPENGL_xmesa_INCLUDE_DIR GL/xmesa.h | |
/usr/share/doc/NVIDIA_GLX-1.0/include | |
/usr/openwin/share/include | |
/opt/graphics/OpenGL/include /usr/X11R6/include | |
) | |
find_library(OPENGL_gl_LIBRARY | |
NAMES GL MesaGL | |
PATHS /opt/graphics/OpenGL/lib | |
/usr/openwin/lib | |
/usr/shlib /usr/X11R6/lib | |
${_OPENGL_LIB_PATH} | |
) | |
unset(_OPENGL_INCLUDE_PATH) | |
unset(_OPENGL_LIB_PATH) | |
find_library(OPENGL_glu_LIBRARY | |
NAMES GLU MesaGLU | |
PATHS ${OPENGL_gl_LIBRARY} | |
/opt/graphics/OpenGL/lib | |
/usr/openwin/lib | |
/usr/shlib /usr/X11R6/lib | |
) | |
endif () | |
if(OPENGL_gl_LIBRARY) | |
if(OPENGL_xmesa_INCLUDE_DIR) | |
set( OPENGL_XMESA_FOUND "YES" ) | |
else() | |
set( OPENGL_XMESA_FOUND "NO" ) | |
endif() | |
set( OPENGL_LIBRARIES ${OPENGL_gl_LIBRARY} ${OPENGL_LIBRARIES}) | |
if(OPENGL_glu_LIBRARY) | |
set( OPENGL_GLU_FOUND "YES" ) | |
if(NOT "${OPENGL_glu_LIBRARY}" STREQUAL "${OPENGL_gl_LIBRARY}") | |
set( OPENGL_LIBRARIES ${OPENGL_glu_LIBRARY} ${OPENGL_LIBRARIES} ) | |
endif() | |
else() | |
set( OPENGL_GLU_FOUND "NO" ) | |
endif() | |
# This deprecated setting is for backward compatibility with CMake1.4 | |
set (OPENGL_LIBRARY ${OPENGL_LIBRARIES}) | |
endif() | |
# This deprecated setting is for backward compatibility with CMake1.4 | |
set(OPENGL_INCLUDE_PATH ${OPENGL_INCLUDE_DIR}) | |
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) | |
FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenGL REQUIRED_VARS ${_OpenGL_REQUIRED_VARS}) | |
unset(_OpenGL_REQUIRED_VARS) | |
# OpenGL:: targets | |
if(OPENGL_FOUND) | |
if(NOT TARGET OpenGL::GL) | |
if(IS_ABSOLUTE "${OPENGL_gl_LIBRARY}") | |
add_library(OpenGL::GL UNKNOWN IMPORTED) | |
if(OPENGL_gl_LIBRARY MATCHES "/([^/]+)\\.framework$") | |
set(_gl_fw "${OPENGL_gl_LIBRARY}/${CMAKE_MATCH_1}") | |
if(EXISTS "${_gl_fw}.tbd") | |
set(_gl_fw "${_gl_fw}.tbd") | |
endif() | |
set_target_properties(OpenGL::GL PROPERTIES | |
IMPORTED_LOCATION "${_gl_fw}") | |
else() | |
set_target_properties(OpenGL::GL PROPERTIES | |
IMPORTED_LOCATION "${OPENGL_gl_LIBRARY}") | |
endif() | |
else() | |
add_library(OpenGL::GL INTERFACE IMPORTED) | |
set_target_properties(OpenGL::GL PROPERTIES | |
IMPORTED_LIBNAME "${OPENGL_gl_LIBRARY}") | |
endif() | |
set_target_properties(OpenGL::GL PROPERTIES | |
INTERFACE_INCLUDE_DIRECTORIES "${OPENGL_INCLUDE_DIR}") | |
endif() | |
if(OPENGL_GLU_FOUND AND NOT TARGET OpenGL::GLU) | |
if(IS_ABSOLUTE "${OPENGL_glu_LIBRARY}") | |
add_library(OpenGL::GLU UNKNOWN IMPORTED) | |
if(OPENGL_glu_LIBRARY MATCHES "/([^/]+)\\.framework$") | |
set(_glu_fw "${OPENGL_glu_LIBRARY}/${CMAKE_MATCH_1}") | |
if(EXISTS "${_glu_fw}.tbd") | |
set(_glu_fw "${_glu_fw}.tbd") | |
endif() | |
set_target_properties(OpenGL::GLU PROPERTIES | |
IMPORTED_LOCATION "${_glu_fw}") | |
else() | |
set_target_properties(OpenGL::GLU PROPERTIES | |
IMPORTED_LOCATION "${OPENGL_glu_LIBRARY}") | |
endif() | |
else() | |
add_library(OpenGL::GLU INTERFACE IMPORTED) | |
set_target_properties(OpenGL::GLU PROPERTIES | |
IMPORTED_LIBNAME "${OPENGL_glu_LIBRARY}") | |
endif() | |
set_target_properties(OpenGL::GLU PROPERTIES | |
INTERFACE_LINK_LIBRARIES OpenGL::GL) | |
endif() | |
endif() | |
mark_as_advanced( | |
OPENGL_INCLUDE_DIR | |
OPENGL_xmesa_INCLUDE_DIR | |
OPENGL_glu_LIBRARY | |
OPENGL_gl_LIBRARY | |
) |