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#-------------------------------------------------------------------
# This file is part of the CMake build system for OGRE (http://www.ogre3d.org/)
#
# The contents of this file are placed in the public domain.
# Feel free to make use of it in any way you like.
#-------------------------------------------------------------------
# - Try to find OpenGLES and EGL
# Once done this will define
#
# OPENGLES2_FOUND - system has OpenGLES
# OPENGLES2_INCLUDE_DIR - the GL include directory
# OPENGLES2_LIBRARIES - Link these to use OpenGLES
#
# EGL_FOUND - system has EGL
# EGL_INCLUDE_DIR - the EGL include directory
# EGL_LIBRARIES - Link these to use EGL
# Win32, Apple, and Android are not tested!
# Linux tested and works
set(OPENGLES2_LIBRARIES)
macro(create_search_paths PREFIX)
foreach(dir ${${PREFIX}_PREFIX_PATH})
set(${PREFIX}_INC_SEARCH_PATH ${${PREFIX}_INC_SEARCH_PATH} ${dir}/include ${dir}/include/${PREFIX} ${dir}/Headers)
set(${PREFIX}_LIB_SEARCH_PATH ${${PREFIX}_LIB_SEARCH_PATH} ${dir}/lib ${dir}/lib/${PREFIX} ${dir}/Libs)
endforeach()
set(${PREFIX}_FRAMEWORK_SEARCH_PATH ${${PREFIX}_PREFIX_PATH})
endmacro()
macro(findpkg_framework fwk)
if(APPLE)
set(${fwk}_FRAMEWORK_PATH
${${fwk}_FRAMEWORK_SEARCH_PATH}
${CMAKE_FRAMEWORK_PATH}
~/Library/Frameworks
/Library/Frameworks
/System/Library/Frameworks
/Network/Library/Frameworks
/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/System/Library/Frameworks/
)
foreach(dir ${${fwk}_FRAMEWORK_PATH})
set(fwkpath ${dir}/${fwk}.framework)
if(EXISTS ${fwkpath})
set(${fwk}_FRAMEWORK_INCLUDES ${${fwk}_FRAMEWORK_INCLUDES} ${fwkpath}/Headers ${fwkpath}/PrivateHeaders)
if(NOT ${fwk}_LIBRARY_FWK)
SET(${fwk}_LIBRARY_FWK "-framework ${fwk}")
endif()
endif()
endforeach()
endif()
endmacro()
if(WIN32)
if(CYGWIN)
find_path(OPENGLES2_INCLUDE_DIR GLES2/gl2.h)
find_library(OPENGLES2_LIBRARY libGLESv2)
else()
if(BORLAND)
set(OPENGLES2_LIBRARY import32 CACHE STRING "OpenGL ES 2.x library for Win32")
else()
# TODO
# set(OPENGLES_LIBRARY ${SOURCE_DIR}/Dependencies/lib/release/libGLESv2.lib CACHE STRING "OpenGL ES 2.x library for win32"
endif()
endif()
elseif(APPLE)
create_search_paths(/Developer/Platforms)
findpkg_framework(OpenGLES2)
set(OPENGLES2_LIBRARY "-framework OpenGLES")
else()
find_path(OPENGLES2_INCLUDE_DIR GLES2/gl2.h
PATHS /usr/openwin/share/include
/opt/graphics/OpenGL/include
/opt/vc/include
/usr/X11R6/include
/usr/include
${EXTERNAL_INCLUDES_DIR}
)
find_library(OPENGLES2_LIBRARY
NAMES GLESv2
PATHS /opt/graphics/OpenGL/lib
/usr/openwin/lib
/usr/shlib /usr/X11R6/lib
/opt/vc/lib
/usr/lib/aarch64-linux-gnu
/usr/lib/arm-linux-gnueabihf
/usr/lib
${NCINE_LIBS}/Linux/${CMAKE_SYSTEM_PROCESSOR}/
)
find_library(OPENGLES1_gl_LIBRARY
NAMES GLESv1_CM
PATHS /opt/graphics/OpenGL/lib
/usr/openwin/lib
/usr/shlib /usr/X11R6/lib
/opt/vc/lib
/usr/lib/aarch64-linux-gnu
/usr/lib/arm-linux-gnueabihf
/usr/lib
${NCINE_LIBS}/Linux/${CMAKE_SYSTEM_PROCESSOR}/
)
if(NOT BUILD_ANDROID)
find_path(EGL_INCLUDE_DIR EGL/egl.h
PATHS /usr/openwin/share/include
/opt/graphics/OpenGL/include
/opt/vc/include
/usr/X11R6/include
/usr/include
${EXTERNAL_INCLUDES_DIR}
)
find_library(EGL_LIBRARY
NAMES EGL
PATHS /opt/graphics/OpenGL/lib
/usr/openwin/lib
/usr/shlib
/usr/X11R6/lib
/opt/vc/lib
/usr/lib/aarch64-linux-gnu
/usr/lib/arm-linux-gnueabihf
/usr/lib
${NCINE_LIBS}/Linux/${CMAKE_SYSTEM_PROCESSOR}/
)
# On Unix OpenGL usually requires X11.
# It doesn't require X11 on OSX.
#if(OPENGLES2_LIBRARY)
# if(NOT X11_FOUND)
# find_package(X11)
# endif()
# if(X11_FOUND)
# list(APPEND OPENGLES2_LIBRARIES ${X11_LIBRARIES})
# endif()
#endif()
endif()
endif()
if(BUILD_ANDROID)
if(OPENGLES2_LIBRARY AND OPENGLES2_INCLUDE_DIR)
list(APPEND OPENGLES2_LIBRARIES ${OPENGLES2_LIBRARY})
set(EGL_LIBRARIES)
set(OPENGLES2_FOUND TRUE)
endif()
else()
if(OPENGLES2_LIBRARY AND OPENGLES2_INCLUDE_DIR AND EGL_LIBRARY AND EGL_INCLUDE_DIR)
set(OPENGLES2_LIBRARIES ${OPENGLES2_LIBRARY})
#if(OPENGLES1_gl_LIBRARY)
# list(APPEND OPENGLES2_LIBRARIES ${OPENGLES1_gl_LIBRARY})
#endif()
set(EGL_LIBRARIES ${EGL_LIBRARY} ${EGL_LIBRARIES})
set(OPENGLES2_FOUND TRUE)
endif()
endif()
mark_as_advanced(
OPENGLES2_INCLUDE_DIR
OPENGLES2_LIBRARY
OPENGLES1_gl_LIBRARY
EGL_INCLUDE_DIR
EGL_LIBRARY
)
if(OPENGLES2_FOUND)
message(STATUS "Found system OpenGL|ES 2 library: ${OPENGLES2_LIBRARIES}")
else()
set(OPENGLES2_LIBRARIES "")
set(OPENGLES2_INCLUDE_DIR "")
set(EGL_LIBRARY "")
set(EGL_INCLUDE_DIR "")
endif()
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