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# Copyright (C) 2025 Igalia S.L.
#
# 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 above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND ITS CONTRIBUTORS ``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 COPYRIGHT HOLDER OR ITS
# CONTRIBUTORS 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.
#[=======================================================================[.rst:
FindAndroid
-----------
Find Android NDK headers and libraries.
This module supports checking for the following components:
``Android``
The base ``libandroid`` library. If no components are specified, this
will the only one to search for.
``Log``
The logging ``liblog`` library.
Imported Targets
^^^^^^^^^^^^^^^^
For each supported component, the corresponding `Android::<name>` target
will be defined, for example `Android::Android`, if found.
Result Variables
^^^^^^^^^^^^^^^^
This will define the following variables in your project, for each
component given its `<name>`:
``Android_<name>_FOUND``
True if the component `<name>` is available.
#]=======================================================================]
if (NOT ANDROID)
return()
endif ()
include(CMakePushCheckState)
include(CheckFunctionExists)
include(CheckIncludeFile)
function(_AndroidHandleComponent target)
if (TARGET Android::${target})
message(DEBUG "Android::${target} already checked, skipping")
return()
endif ()
if (NOT Android_COMPONENT_${target}_LIBRARY)
message(CHECK_FAIL "Invalid component name")
return()
endif ()
set(libname "${Android_COMPONENT_${target}_LIBRARY}")
set(header "${Android_COMPONENT_${target}_HEADER}")
set(symbol "${Android_COMPONENT_${target}_SYMBOL}")
set(deps "${Android_COMPONENT_${target}_DEPS}")
set(deplibs "${libname}")
foreach (dep IN LISTS deps)
if (Android_FIND_REQUIRED_${target} AND NOT Android_FIND_REQUIRED_${dep})
set(Android_FIND_REQUIRED_${dep} TRUE PARENT_SCOPE)
endif ()
_AndroidHandleComponent(${dep})
list(APPEND deplibs Android::${dep})
endforeach ()
check_include_file("${header}" Android_COMPONENT_${target}_HAS_HEADER)
if (NOT Android_COMPONENT_${target}_HAS_HEADER)
return()
endif ()
cmake_push_check_state(RESET)
set(CMAKE_REQUIRED_LIBRARIES "${libname}")
check_function_exists("${symbol}" Android_COMPONENT_${target}_HAS_SYMBOL)
cmake_pop_check_state()
if (NOT Android_COMPONENT_${target}_HAS_SYMBOL)
return()
endif ()
add_library(Android::${target} INTERFACE IMPORTED)
set_target_properties(Android::${target} PROPERTIES
INTERFACE_LINK_LIBRARIES "${deplibs}")
set(Android_${target}_FOUND TRUE PARENT_SCOPE)
endfunction()
function(_AndroidDefineComponent target libname header symbol)
if (Android_COMPONENT_${target}_LIBRARY)
message(FATAL_ERROR "Android::${target} component already defined")
endif ()
cmake_parse_arguments(PARSE_ARGV 4 opt "" "" "")
set(Android_COMPONENT_${target}_LIBRARY "${libname}" PARENT_SCOPE)
set(Android_COMPONENT_${target}_HEADER "${header}" PARENT_SCOPE)
set(Android_COMPONENT_${target}_SYMBOL "${symbol}" PARENT_SCOPE)
set(Android_COMPONENT_${target}_DEPS "${opt_UNPARSED_ARGUMENTS}" PARENT_SCOPE)
endfunction()
_AndroidDefineComponent(Android
android
android/hardware_buffer.h
AHardwareBuffer_allocate
)
_AndroidDefineComponent(Log
log
android/log.h
__android_log_print
)
if (NOT Android_FIND_COMPONENTS)
set(Android_FIND_COMPONENTS Android)
set(Android_FIND_REQUIRED_Android ${Android_FIND_REQUIRED})
endif ()
foreach (component IN LISTS Android_FIND_COMPONENTS)
_AndroidHandleComponent(${component})
endforeach ()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Android HANDLE_COMPONENTS)
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