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			131 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			CMake
		
	
	
	
	
	
			
		
		
	
	
			131 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			CMake
		
	
	
	
	
	
#-------------------------------------------------------------------
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# This file is stolen from part of the CMake build system for OGRE (Object-oriented Graphics Rendering Engine) http://www.ogre3d.org/
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#
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# The contents of this file are placed in the public domain. Feel
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# free to make use of it in any way you like.
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#-------------------------------------------------------------------
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# - Try to find OpenGLES and EGL
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# Once done this will define
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#
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#  OPENGLES2_FOUND        - system has OpenGLES
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#  OPENGLES2_INCLUDE_DIR  - the GL include directory
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#  OPENGLES2_LIBRARIES    - Link these to use OpenGLES
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#
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#  EGL_FOUND        - system has EGL
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#  EGL_INCLUDE_DIR  - the EGL include directory
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#  EGL_LIBRARIES    - Link these to use EGL
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# win32, apple, android NOT TESED
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# linux tested and works
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IF (WIN32)
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  IF (CYGWIN)
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    FIND_PATH(OPENGLES2_INCLUDE_DIR GLES2/gl2.h )
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    FIND_LIBRARY(OPENGLES2_gl_LIBRARY libGLESv2 )
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  ELSE (CYGWIN)
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    IF(BORLAND)
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      SET (OPENGLES2_gl_LIBRARY import32 CACHE STRING "OpenGL ES 2.x library for win32")
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    ELSE(BORLAND)
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      # todo
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      # SET (OPENGLES_gl_LIBRARY ${SOURCE_DIR}/Dependencies/lib/release/libGLESv2.lib CACHE STRING "OpenGL ES 2.x library for win32"
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    ENDIF(BORLAND)
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  ENDIF (CYGWIN)
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ELSE (WIN32)
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  IF (APPLE)
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	create_search_paths(/Developer/Platforms)
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	findpkg_framework(OpenGLES2)
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    set(OPENGLES2_gl_LIBRARY "-framework OpenGLES")
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  ELSE(APPLE)
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    FIND_PATH(OPENGLES2_INCLUDE_DIR GLES2/gl2.h
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      /usr/openwin/share/include
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      /opt/graphics/OpenGL/include /usr/X11R6/include
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      /usr/include
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    )
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    FIND_LIBRARY(OPENGLES2_gl_LIBRARY
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      NAMES GLESv2
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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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            /usr/lib
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    )
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    IF (NOT BUILD_ANDROID)
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		FIND_PATH(EGL_INCLUDE_DIR EGL/egl.h
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		  /usr/openwin/share/include
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		  /opt/graphics/OpenGL/include /usr/X11R6/include
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		  /usr/include
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		)
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		FIND_LIBRARY(EGL_egl_LIBRARY
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		  NAMES EGL
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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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				/usr/lib
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		)
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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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		# It's not true on OSX.
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		IF (OPENGLES2_gl_LIBRARY)
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		  IF(NOT X11_FOUND)
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			INCLUDE(FindX11)
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		  ENDIF(NOT X11_FOUND)
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		  IF (X11_FOUND)
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			IF (NOT APPLE)
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			  SET (OPENGLES2_LIBRARIES ${X11_LIBRARIES})
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			ENDIF (NOT APPLE)
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		  ENDIF (X11_FOUND)
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		ENDIF (OPENGLES2_gl_LIBRARY)
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    ENDIF ()
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  ENDIF(APPLE)
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ENDIF (WIN32)
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#SET( OPENGLES2_LIBRARIES ${OPENGLES2_gl_LIBRARY} ${OPENGLES2_LIBRARIES})
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IF (BUILD_ANDROID)
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  IF(OPENGLES2_gl_LIBRARY)
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      SET( OPENGLES2_LIBRARIES ${OPENGLES2_gl_LIBRARY} ${OPENGLES2_LIBRARIES})
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      SET( EGL_LIBRARIES)
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      SET( OPENGLES2_FOUND "YES" )
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  ENDIF(OPENGLES2_gl_LIBRARY)
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ELSE ()
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  SET( OPENGLES2_LIBRARIES ${OPENGLES2_gl_LIBRARY} ${OPENGLES2_LIBRARIES})
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  IF(OPENGLES2_gl_LIBRARY AND EGL_egl_LIBRARY)
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    SET( OPENGLES2_LIBRARIES ${OPENGLES2_gl_LIBRARY} ${OPENGLES2_LIBRARIES})
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    SET( EGL_LIBRARIES ${EGL_egl_LIBRARY} ${EGL_LIBRARIES})
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    SET( OPENGLES2_FOUND "YES" )
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  ENDIF(OPENGLES2_gl_LIBRARY AND EGL_egl_LIBRARY)
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ENDIF ()
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MARK_AS_ADVANCED(
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  OPENGLES2_INCLUDE_DIR
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  OPENGLES2_gl_LIBRARY
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  EGL_INCLUDE_DIR
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  EGL_egl_LIBRARY
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)
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IF(OPENGLES2_FOUND)
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    MESSAGE(STATUS "Found system opengles2 library ${OPENGLES2_LIBRARIES}")
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ELSE ()
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    SET(OPENGLES2_LIBRARIES "")
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ENDIF ()
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