cmake/Modules/FindOpenGLES2.cmake

   1 #-------------------------------------------------------------------
   2 # This file is stolen from part of the CMake build system for OGRE (Object-oriented Graphics Rendering Engine) http://www.ogre3d.org/
   3 #
   4 # The contents of this file are placed in the public domain. Feel
   5 # free to make use of it in any way you like.
   6 #-------------------------------------------------------------------
   7
   8 # - Try to find OpenGLES and EGL
   9 # Once done this will define
  10 #
  11 #  OPENGLES2_FOUND        - system has OpenGLES
  12 #  OPENGLES2_INCLUDE_DIR  - the GL include directory
  13 #  OPENGLES2_LIBRARIES    - Link these to use OpenGLES
  14 #
  15 #  EGL_FOUND        - system has EGL
  16 #  EGL_INCLUDE_DIR  - the EGL include directory
  17 #  EGL_LIBRARIES    - Link these to use EGL
  18
  19 # win32, apple, android NOT TESED
  20 # linux tested and works
  21
  22 IF (WIN32)
  23   IF (CYGWIN)
  24
  25     FIND_PATH(OPENGLES2_INCLUDE_DIR GLES2/gl2.h )
  26
  27     FIND_LIBRARY(OPENGLES2_gl_LIBRARY libGLESv2 )
  28
  29   ELSE (CYGWIN)
  30
  31     IF(BORLAND)
  32       SET (OPENGLES2_gl_LIBRARY import32 CACHE STRING "OpenGL ES 2.x library for win32")
  33     ELSE(BORLAND)
  34       # todo
  35       # SET (OPENGLES_gl_LIBRARY ${SOURCE_DIR}/Dependencies/lib/release/libGLESv2.lib CACHE STRING "OpenGL ES 2.x library for win32"
  36     ENDIF(BORLAND)
  37
  38   ENDIF (CYGWIN)
  39
  40 ELSE (WIN32)
  41
  42   IF (APPLE)
  43
  44         create_search_paths(/Developer/Platforms)
  45         findpkg_framework(OpenGLES2)
  46     set(OPENGLES2_gl_LIBRARY "-framework OpenGLES")
  47
  48   ELSE(APPLE)
  49
  50     FIND_PATH(OPENGLES2_INCLUDE_DIR GLES2/gl2.h
  51       /usr/openwin/share/include
  52       /opt/graphics/OpenGL/include /usr/X11R6/include
  53       /usr/include
  54     )
  55
  56     FIND_LIBRARY(OPENGLES2_gl_LIBRARY
  57       NAMES GLESv2
  58       PATHS /opt/graphics/OpenGL/lib
  59             /usr/openwin/lib
  60             /usr/shlib /usr/X11R6/lib
  61             /usr/lib
  62     )
  63
  64     IF (NOT BUILD_ANDROID)
  65                 FIND_PATH(EGL_INCLUDE_DIR EGL/egl.h
  66                   /usr/openwin/share/include
  67                   /opt/graphics/OpenGL/include /usr/X11R6/include
  68                   /usr/include
  69                 )
  70
  71                 FIND_LIBRARY(EGL_egl_LIBRARY
  72                   NAMES EGL
  73                   PATHS /opt/graphics/OpenGL/lib
  74                                 /usr/openwin/lib
  75                                 /usr/shlib /usr/X11R6/lib
  76                                 /usr/lib
  77                 )
  78
  79                 # On Unix OpenGL most certainly always requires X11.
  80                 # Feel free to tighten up these conditions if you don't
  81                 # think this is always true.
  82                 # It's not true on OSX.
  83
  84                 IF (OPENGLES2_gl_LIBRARY)
  85                   IF(NOT X11_FOUND)
  86                         INCLUDE(FindX11)
  87                   ENDIF(NOT X11_FOUND)
  88                   IF (X11_FOUND)
  89                         IF (NOT APPLE)
  90                           SET (OPENGLES2_LIBRARIES ${X11_LIBRARIES})
  91                         ENDIF (NOT APPLE)
  92                   ENDIF (X11_FOUND)
  93                 ENDIF (OPENGLES2_gl_LIBRARY)
  94     ENDIF ()
  95
  96   ENDIF(APPLE)
  97 ENDIF (WIN32)
  98
  99 #SET( OPENGLES2_LIBRARIES ${OPENGLES2_gl_LIBRARY} ${OPENGLES2_LIBRARIES})
 100
 101 IF (BUILD_ANDROID)
 102   IF(OPENGLES2_gl_LIBRARY)
 103       SET( OPENGLES2_LIBRARIES ${OPENGLES2_gl_LIBRARY} ${OPENGLES2_LIBRARIES})
 104       SET( EGL_LIBRARIES)
 105       SET( OPENGLES2_FOUND "YES" )
 106   ENDIF(OPENGLES2_gl_LIBRARY)
 107 ELSE ()
 108
 109   SET( OPENGLES2_LIBRARIES ${OPENGLES2_gl_LIBRARY} ${OPENGLES2_LIBRARIES})
 110
 111   IF(OPENGLES2_gl_LIBRARY AND EGL_egl_LIBRARY)
 112     SET( OPENGLES2_LIBRARIES ${OPENGLES2_gl_LIBRARY} ${OPENGLES2_LIBRARIES})
 113     SET( EGL_LIBRARIES ${EGL_egl_LIBRARY} ${EGL_LIBRARIES})
 114     SET( OPENGLES2_FOUND "YES" )
 115   ENDIF(OPENGLES2_gl_LIBRARY AND EGL_egl_LIBRARY)
 116
 117 ENDIF ()
 118
 119 MARK_AS_ADVANCED(
 120   OPENGLES2_INCLUDE_DIR
 121   OPENGLES2_gl_LIBRARY
 122   EGL_INCLUDE_DIR
 123   EGL_egl_LIBRARY
 124 )
 125
 126 IF(OPENGLES2_FOUND)
 127     MESSAGE(STATUS "Found system opengles2 library ${OPENGLES2_LIBRARIES}")
 128 ELSE ()
 129     SET(OPENGLES2_LIBRARIES "")
 130 ENDIF ()