4 # OPENAL_FOUND, if false, do not try to link to OpenAL
5 # OPENAL_INCLUDE_DIR, where to find the headers
7 # $OPENALDIR is an environment variable that would
8 # correspond to the ./configure --prefix=$OPENALDIR
9 # used in building OpenAL.
11 # Created by Eric Wing. This was influenced by the FindSDL.cmake module.
13 #=============================================================================
14 # Copyright 2005-2009 Kitware, Inc.
16 # Distributed under the OSI-approved BSD License (the "License");
17 # see accompanying file Copyright.txt for details.
19 # This software is distributed WITHOUT ANY WARRANTY; without even the
20 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
21 # See the License for more information.
22 #=============================================================================
23 # (To distribute this file outside of CMake, substitute the full
24 # License text for the above reference.)
26 # For Windows, OpenAL would be included like
28 # For Apple, you would include it like
29 # #include <OpenAL/al.h>
30 # Other systems include it like
32 # The reason for this is that Creative Labs does not by default put their
33 # headers in AL/ for Windows, and other systems follow the OpenGL convention
34 # (OpenAL/ for OSX, and AL/ for Linux and other Unixes).
36 # For Windows, Creative Labs seems to have added a registry key for their
37 # OpenAL 1.1 installer. I have added that key to the list of search paths,
38 # however, the key looks like it could be a little fragile depending on
39 # if they decide to change the 1.00.0000 number for bug fix releases.
40 # Also, they seem to have laid down groundwork for multiple library platforms
41 # which puts the library in an extra subdirectory. Currently there is only
42 # Win32 and I have hardcoded that here. This may need to be adjusted as
43 # platforms are introduced.
44 # The OpenAL 1.0 installer doesn't seem to have a useful key I can use.
45 # I do not know if the Nvidia OpenAL SDK has a registry key.
47 # For OSX, remember that OpenAL was added by Apple in 10.4 (Tiger).
48 # To support the framework, I originally wrote special framework detection
49 # code in this module which I have now removed with CMake's introduction
50 # of native support for frameworks.
51 # In addition, OpenAL is open source, and it is possible to compile on Panther.
52 # Furthermore, due to bugs in the initial OpenAL release, and the
53 # transition to OpenAL 1.1, it is common to need to override the built-in
55 # Per my request, CMake should search for frameworks first in
56 # the following order:
57 # ~/Library/Frameworks/OpenAL.framework/Headers
58 # /Library/Frameworks/OpenAL.framework/Headers
59 # /System/Library/Frameworks/OpenAL.framework/Headers
61 # On OSX, this will prefer the Framework version (if found) over others.
62 # People will have to manually change the cache values of
63 # OPENAL_LIBRARY to override this selection or set the CMake environment
64 # CMAKE_INCLUDE_PATH to modify the search paths.
67 SET(AL_HEADER_PREFIX "")
69 SET(AL_HEADER_PREFIX "OpenAL/")
71 SET(AL_HEADER_PREFIX "AL/")
74 FIND_PATH(OPENAL_INCLUDE_DIR "${AL_HEADER_PREFIX}al.h"
77 PATH_SUFFIXES include include/AL
84 /opt/local # DarwinPorts
87 [HKEY_LOCAL_MACHINE\\SOFTWARE\\Creative\ Labs\\OpenAL\ 1.1\ Software\ Development\ Kit\\1.00.0000;InstallDir]
90 FIND_LIBRARY(OPENAL_LIBRARY
91 NAMES OpenAL al openal OpenAL32
94 PATH_SUFFIXES lib64 lib libs64 libs libs/Win32 libs/Win64
104 [HKEY_LOCAL_MACHINE\\SOFTWARE\\Creative\ Labs\\OpenAL\ 1.1\ Software\ Development\ Kit\\1.00.0000;InstallDir]
108 # handle the QUIETLY and REQUIRED arguments and set OPENAL_FOUND to TRUE if
109 # all listed variables are TRUE
110 INCLUDE(FindPackageHandleStandardArgs)
111 FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenAL DEFAULT_MSG OPENAL_LIBRARY OPENAL_INCLUDE_DIR)
113 MARK_AS_ADVANCED(OPENAL_LIBRARY OPENAL_INCLUDE_DIR)