Add ComputeLibrary

Signed-off-by: Uilian Ries <uilianries@gmail.com>

recipes/compute_library/all/conandata.yml

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+sources:
+  "23.08":
+    url: "https://github.com/ARM-software/ComputeLibrary/archive/refs/tags/v23.08.tar.gz"
+    sha256: "62f514a555409d4401e5250b290cdf8cf1676e4eb775e5bd61ea6a740a8ce24f"

recipes/compute_library/all/conanfile.py

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+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.files import get, copy, rm, chdir
+from conan.tools.build import check_min_cppstd, cross_building, build_jobs
+from conan.tools.scm import Version
+from conan.tools.env import VirtualBuildEnv
+from conan.tools.layout import basic_layout
+import os
+
+
+required_conan_version = ">=1.53.0"
+
+
+class ComputeLibraryConan(ConanFile):
+    name = "compute_library"
+    description = "The Compute Library is a set of computer vision and machine learning functions optimized for both Arm CPUs and GPUs using SIMD technologies"
+    license = "MIT"
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/ARM-software/ComputeLibrary"
+    topics = ("android", "linux", "machine-learning", "arm", "computer-vision", "neural-network")
+    package_type = "library"
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "shared": [True, False],
+        "enable_openmp": [True, False],
+        "enable_opencl": [True, False],
+        "enable_neon": [True, False],
+    }
+    default_options = {
+        "shared": False,
+        "enable_openmp": False,
+        "enable_opencl": False,
+        "enable_neon": True,
+    }
+
+    @property
+    def _min_cppstd(self):
+        return 14
+
+    @property
+    def _compilers_minimum_version(self):
+        return {
+            "gcc": "10",
+            "clang": "5",
+            "apple-clang": "5.1",
+        }
+
+    def config_options(self):
+        # INFO: Neon option is reserved to arm architecture
+        if "arm" in str(self.settings.arch):
+            del self.options.enable_neon
+        # INFO: OpenCL option only works with g++, according to the documentation
+        if self.settings.compiler == "clang":
+            del self.options.enable_openmp
+
+    def configure(self):
+        if self.options.shared:
+            self.options.rm_safe("fPIC")
+
+    def layout(self):
+        basic_layout(self, src_folder="src")
+
+    def build_requirements(self):
+        self.tool_requires("scons/4.3.0")
+
+    def validate(self):
+        if self.settings.compiler.cppstd:
+            check_min_cppstd(self, self._min_cppstd)
+        minimum_version = self._compilers_minimum_version.get(str(self.settings.compiler), False)
+        if minimum_version and Version(self.settings.compiler.version) < minimum_version:
+            raise ConanInvalidConfiguration(f"{self.ref} requires C++{self._min_cppstd}, which your compiler does not support.")
+        supported_os = ["Android", "Linux", "OpenBSD", "Macos", "Tizen"]
+        if str(self.settings.os) not in supported_os:
+            raise ConanInvalidConfiguration(f"{self.ref} does not support {self.settings.os}. It is only supported on {supported_os}.")
+        if "arm" not in str(self.settings.arch) and "x86" not in str(self.settings.arch):
+            raise ConanInvalidConfiguration(f"{self.ref} does not support {self.settings.arch}. It is only supported on arm and x86.")
+        if "x86" in str(self.settings.arch) and (self.options.get_safe("enable_neon") or not self.options.enable_opencl):
+            raise ConanInvalidConfiguration(f"{self.ref} can be built for x86_64 targets only with enable_neon=False and enable_opencl=True.")
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    def generate(self):
+        tc = VirtualBuildEnv(self)
+        tc.generate(scope="build")
+
+    def build(self):
+        # INFO: Using scons to build the library we don't have control over shared/static and install step, it is done all together always
+        yes_no = lambda v: "1" if v else "0"
+        debug = yes_no(self.settings.build_type == "Debug")
+        os = str(self.settings.os).lower()
+        arch = {"armv8": "armv8a", "x86": "x86_32", "armv7": "armv7a", "armv7hf": "armv7a-hf"}.get(str(self.settings.arch), str(self.settings.arch))
+        neon = yes_no(self.options.get_safe("enable_neon"))
+        opencl = yes_no(self.options.enable_opencl)
+        openmp = yes_no(self.options.get_safe("enable_openmp"))
+        build = "cross_compile" if cross_building(self) else "native"
+        with chdir(self, self.source_folder):
+            self.run(f"scons Werror=0 validation_tests=0 examples=0 openmp={openmp} debug={debug} neon={neon} opencl={opencl} os={os} arch={arch} build={build} build_dir={self.build_folder} install_dir={self.package_folder} -j{build_jobs(self)}", env="conanbuildenv")
+
+    def package(self):
+        copy(self, pattern="LICENSE", dst=os.path.join(self.package_folder, "licenses"), src=self.source_folder)
+        # INFO: Artifacts are installed during build step, so we just need to remove what we don't want
+        rm(self, "*.bazel", self.package_folder, recursive=True)
+        rm(self, "*.cpp", self.package_folder, recursive=True)
+        if self.options.shared:
+            rm(self, "*.a", os.path.join(self.package_folder, "lib"))
+        else:
+            rm(self, "*.so*", os.path.join(self.package_folder, "lib"))
+            rm(self, "*.dylib*", os.path.join(self.package_folder, "lib"))
+
+    def package_info(self):
+        suffix = "" if self.options.shared else "-static"
+        self.cpp_info.libs = [f"arm_compute{suffix}", f"arm_compute_core{suffix}", f"arm_compute_graph{suffix}"]
+        if self.settings.os in ["Linux", "FreeBSD"]:
+            self.cpp_info.system_libs = ["m", "pthread"]

recipes/compute_library/all/test_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.15)
+project(test_package CXX)
+
+find_package(compute_library REQUIRED CONFIG)
+
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_link_libraries(${PROJECT_NAME} PRIVATE compute_library::compute_library)
+target_compile_features(${PROJECT_NAME} PRIVATE cxx_std_14)

recipes/compute_library/all/test_package/conanfile.py

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+from conan import ConanFile
+from conan.tools.build import can_run
+from conan.tools.cmake import cmake_layout, CMake
+import os
+
+
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeDeps", "CMakeToolchain", "VirtualRunEnv"
+    test_type = "explicit"
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    def layout(self):
+        cmake_layout(self)
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindir, "test_package")
+            self.run(bin_path, env="conanrun")

recipes/compute_library/all/test_package/test_package.cpp

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+#include <cstdlib>
+#include <iostream>
+#include "arm_compute/core/Version.h"
+
+
+int main(void) {
+    std::cout << "ComputeLibrary information:" << std::endl;
+    std::cout << arm_compute::build_information() << std::endl;
+
+    return EXIT_SUCCESS;
+}

recipes/compute_library/config.yml

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+versions:
+  "23.08":
+    folder: all