# - Try to find the OggVorbis libraries
# Once done this will define
#
#  OGGVORBIS_FOUND - system has OggVorbis
#  OGGVORBIS_VERSION - set either to 1 or 2
#  OGGVORBIS_INCLUDE_DIR - the OggVorbis include directory
#  OGGVORBIS_LIBRARIES - The libraries needed to use OggVorbis
#  OGG_LIBRARY         - The Ogg library
#  VORBIS_LIBRARY      - The Vorbis library
#  VORBISFILE_LIBRARY  - The VorbisFile library
#  VORBISENC_LIBRARY   - The VorbisEnc library

# Copyright (c) 2006, Richard Laerkaeng, <richard@goteborg.utfors.se>
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
#
# COPYING-CMAKE-SCRIPTS:
# ----------------------
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products 
#    derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# ----------------------
#


include (CheckLibraryExists)

find_path(VORBIS_INCLUDE_DIR vorbis/vorbisfile.h)
find_path(OGG_INCLUDE_DIR ogg/ogg.h)

find_library(OGG_LIBRARY NAMES ogg)
find_library(VORBIS_LIBRARY NAMES vorbis)
find_library(VORBISFILE_LIBRARY NAMES vorbisfile)
#find_library(VORBISENC_LIBRARY NAMES vorbisenc) # Remove Enc - WZ

#mark_as_advanced(VORBIS_INCLUDE_DIR OGG_INCLUDE_DIR
#                 OGG_LIBRARY VORBIS_LIBRARY VORBISFILE_LIBRARY VORBISENC_LIBRARY)

# Remove Enc - WZ
mark_as_advanced(VORBIS_INCLUDE_DIR OGG_INCLUDE_DIR
                 OGG_LIBRARY VORBIS_LIBRARY VORBISFILE_LIBRARY)

#if (VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY AND VORBISENC_LIBRARY) # Remove Enc - WZ
if (VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY)
   set(OGGVORBIS_FOUND TRUE)

#  set(OGGVORBIS_LIBRARIES ${OGG_LIBRARY} ${VORBIS_LIBRARY} ${VORBISFILE_LIBRARY} ${VORBISENC_LIBRARY}) # Remove Enc - WZ
   set(OGGVORBIS_LIBRARIES ${OGG_LIBRARY} ${VORBIS_LIBRARY} ${VORBISFILE_LIBRARY})

   set(_CMAKE_REQUIRED_LIBRARIES_TMP ${CMAKE_REQUIRED_LIBRARIES})
   set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${OGGVORBIS_LIBRARIES})
   check_library_exists(vorbis vorbis_bitrate_addblock "" HAVE_LIBVORBISENC2)
   set(CMAKE_REQUIRED_LIBRARIES ${_CMAKE_REQUIRED_LIBRARIES_TMP})

   if (HAVE_LIBVORBISENC2)
      set (OGGVORBIS_VERSION 2)
   else (HAVE_LIBVORBISENC2)
      set (OGGVORBIS_VERSION 1)
   endif (HAVE_LIBVORBISENC2)

#else (VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY AND VORBISENC_LIBRARY) # Remove Enc - WZ
else (VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY)
   set (OGGVORBIS_VERSION)
   set(OGGVORBIS_FOUND FALSE)
#endif (VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY AND VORBISENC_LIBRARY) # Remove Enc - WZ
endif (VORBIS_INCLUDE_DIR AND VORBIS_LIBRARY AND VORBISFILE_LIBRARY)

set(OGGVORBIS_INCLUDE_DIR ${VORBIS_INCLUDE_DIR} ${OGG_INCLUDE_DIR})

# Add FindPackageHandleStdArgs - WZ
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(OggVorbis REQUIRED_VARS OGGVORBIS_LIBRARIES VORBIS_LIBRARY OGG_LIBRARY VORBISFILE_LIBRARY
                                                          VORBIS_INCLUDE_DIR OGG_INCLUDE_DIR OGGVORBIS_INCLUDE_DIR)

#check_include_files(vorbis/vorbisfile.h HAVE_VORBISFILE_H)
#check_library_exists(ogg ogg_page_version "" HAVE_LIBOGG)
#check_library_exists(vorbis vorbis_info_init "" HAVE_LIBVORBIS)
#check_library_exists(vorbisfile ov_open "" HAVE_LIBVORBISFILE)
#check_library_exists(vorbisenc vorbis_info_clear "" HAVE_LIBVORBISENC)
#check_library_exists(vorbis vorbis_bitrate_addblock "" HAVE_LIBVORBISENC2)

#if (HAVE_LIBOGG AND HAVE_VORBISFILE_H AND HAVE_LIBVORBIS AND HAVE_LIBVORBISFILE AND HAVE_LIBVORBISENC)
#    message(STATUS "Ogg/Vorbis found")
#    set (VORBIS_LIBS "-lvorbis -logg")
#    set (VORBISFILE_LIBS "-lvorbisfile")
#    set (VORBISENC_LIBS "-lvorbisenc")
#    set (OGGVORBIS_FOUND TRUE)
#    if (HAVE_LIBVORBISENC2)
#        set (HAVE_VORBIS 2)
#    else (HAVE_LIBVORBISENC2)
#        set (HAVE_VORBIS 1)
#    endif (HAVE_LIBVORBISENC2)
#else (HAVE_LIBOGG AND HAVE_VORBISFILE_H AND HAVE_LIBVORBIS AND HAVE_LIBVORBISFILE AND HAVE_LIBVORBISENC)
#    message(STATUS "Ogg/Vorbis not found")
#endif (HAVE_LIBOGG AND HAVE_VORBISFILE_H AND HAVE_LIBVORBIS AND HAVE_LIBVORBISFILE AND HAVE_LIBVORBISENC)