mirror of
https://github.com/SFML/SFML.git
synced 2024-11-25 12:51:05 +08:00
450acdeac2
This is a lighitly modified copy of CMake 3.27.4's FindOpenAL.cmake module. This gives us access to the OpenAL::OpenAL target which was not added until CMake 3.25.
121 lines
3.8 KiB
CMake
121 lines
3.8 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
#[=======================================================================[.rst:
|
|
FindOpenAL
|
|
----------
|
|
|
|
Finds Open Audio Library (OpenAL).
|
|
|
|
Projects using this module should use ``#include "al.h"`` to include the OpenAL
|
|
header file, **not** ``#include <AL/al.h>``. The reason for this is that the
|
|
latter is not entirely portable. Windows/Creative Labs does not by default put
|
|
their headers in ``AL/`` and macOS uses the convention ``<OpenAL/al.h>``.
|
|
|
|
Hints
|
|
^^^^^
|
|
|
|
Environment variable ``$OPENALDIR`` can be used to set the prefix of OpenAL
|
|
installation to be found.
|
|
|
|
By default on macOS, system framework is search first. In other words,
|
|
OpenAL is searched in the following order:
|
|
|
|
1. System framework: ``/System/Library/Frameworks``, whose priority can be
|
|
changed via setting the :variable:`CMAKE_FIND_FRAMEWORK` variable.
|
|
2. Environment variable ``$OPENALDIR``.
|
|
3. System paths.
|
|
4. User-compiled framework: ``~/Library/Frameworks``.
|
|
5. Manually compiled framework: ``/Library/Frameworks``.
|
|
6. Add-on package: ``/opt``.
|
|
|
|
IMPORTED Targets
|
|
^^^^^^^^^^^^^^^^
|
|
|
|
.. versionadded:: 3.25
|
|
|
|
This module defines the :prop_tgt:`IMPORTED` target:
|
|
|
|
``OpenAL::OpenAL``
|
|
The OpenAL library, if found.
|
|
|
|
Result Variables
|
|
^^^^^^^^^^^^^^^^
|
|
|
|
This module defines the following variables:
|
|
|
|
``OPENAL_FOUND``
|
|
If false, do not try to link to OpenAL
|
|
``OPENAL_INCLUDE_DIR``
|
|
OpenAL include directory
|
|
``OPENAL_LIBRARY``
|
|
Path to the OpenAL library
|
|
``OPENAL_VERSION_STRING``
|
|
Human-readable string containing the version of OpenAL
|
|
#]=======================================================================]
|
|
|
|
# For Windows, Creative Labs seems to have added a registry key for their
|
|
# OpenAL 1.1 installer. I have added that key to the list of search paths,
|
|
# however, the key looks like it could be a little fragile depending on
|
|
# if they decide to change the 1.00.0000 number for bug fix releases.
|
|
# Also, they seem to have laid down groundwork for multiple library platforms
|
|
# which puts the library in an extra subdirectory. Currently there is only
|
|
# Win32 and I have hardcoded that here. This may need to be adjusted as
|
|
# platforms are introduced.
|
|
# The OpenAL 1.0 installer doesn't seem to have a useful key I can use.
|
|
# I do not know if the Nvidia OpenAL SDK has a registry key.
|
|
|
|
find_path(OPENAL_INCLUDE_DIR al.h
|
|
HINTS
|
|
ENV OPENALDIR
|
|
PATHS
|
|
~/Library/Frameworks
|
|
/Library/Frameworks
|
|
/opt
|
|
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Creative\ Labs\\OpenAL\ 1.1\ Software\ Development\ Kit\\1.00.0000;InstallDir]
|
|
PATH_SUFFIXES include/AL include/OpenAL include AL OpenAL
|
|
)
|
|
|
|
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
|
|
set(_OpenAL_ARCH_DIR libs/Win64)
|
|
else()
|
|
set(_OpenAL_ARCH_DIR libs/Win32)
|
|
endif()
|
|
|
|
find_library(OPENAL_LIBRARY
|
|
NAMES OpenAL al openal OpenAL32
|
|
HINTS
|
|
ENV OPENALDIR
|
|
PATHS
|
|
~/Library/Frameworks
|
|
/Library/Frameworks
|
|
/opt
|
|
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Creative\ Labs\\OpenAL\ 1.1\ Software\ Development\ Kit\\1.00.0000;InstallDir]
|
|
PATH_SUFFIXES libx32 lib64 lib libs64 libs ${_OpenAL_ARCH_DIR}
|
|
)
|
|
|
|
unset(_OpenAL_ARCH_DIR)
|
|
|
|
include(FindPackageHandleStandardArgs)
|
|
find_package_handle_standard_args(
|
|
OpenAL
|
|
REQUIRED_VARS OPENAL_LIBRARY OPENAL_INCLUDE_DIR
|
|
VERSION_VAR OPENAL_VERSION_STRING
|
|
)
|
|
|
|
mark_as_advanced(OPENAL_LIBRARY OPENAL_INCLUDE_DIR)
|
|
|
|
if(NOT TARGET OpenAL::OpenAL)
|
|
if(OPENAL_LIBRARY MATCHES "/([^/]+)\\.framework$")
|
|
add_library(OpenAL::OpenAL INTERFACE IMPORTED)
|
|
set_target_properties(OpenAL::OpenAL PROPERTIES
|
|
INTERFACE_LINK_LIBRARIES "${OPENAL_LIBRARY}")
|
|
else()
|
|
add_library(OpenAL::OpenAL UNKNOWN IMPORTED)
|
|
set_target_properties(OpenAL::OpenAL PROPERTIES
|
|
IMPORTED_LOCATION "${OPENAL_LIBRARY}")
|
|
endif()
|
|
set_target_properties(OpenAL::OpenAL PROPERTIES
|
|
INTERFACE_INCLUDE_DIRECTORIES "${OPENAL_INCLUDE_DIR}")
|
|
endif()
|