ncnn: new package (#7206)

* feat: ncnn

* Update packages/n/ncnn

Co-authored-by: Saikari <[email protected]>

* fix: use xmake glslang

* fix

* disable vulkan by default

* see platforms that passes compile.

* add libomp

* libomp in linux/mac only

* lock to date

* Update xmake.lua

* Update packages/n/ncnn/xmake.lua

Co-authored-by: Saikari <[email protected]>

* Update xmake.lua

* test

* test NDKL

* on_load "android"

* ndk link against android

* check debug postfix of output library

* add libomp to mingw

* improve MinGW build

* limit macosx subhost for mingw

* add `libomp` dep to `bsd` platform

* Use .tar.gz link & SHA-256 in first place

* test shared

---------

Co-authored-by: Saikari <[email protected]>
Co-authored-by: star9029 <[email protected]>

packages/n/ncnn/xmake.lua

@@ -0,0 +1,69 @@
+package("ncnn")
+    set_homepage("https://github.com/Tencent/ncnn")
+    set_description("High-performance neural network inference framework optimized for the mobile platform")
+    set_license("BSD-3-Clause")
+
+    add_urls("https://github.com/Tencent/ncnn/archive/refs/tags/$(version).tar.gz",
+             "https://github.com/Tencent/ncnn.git", {submodules = false})
+
+    add_versions("20250503", "3afea4cf092ce97d06305b72c6affbcfb3530f536ae8e81a4f22007d82b729e9")
+
+    add_configs("vulkan", {description = "Enable Vulkan support", default = false, type = "boolean"})
+    add_configs("simpleocv", {description = "Enable SimpleOpenCV", default = true, type = "boolean"})
+
+    add_deps("cmake")
+    add_deps("protobuf-cpp 3.11.2", "glslang")
+
+    if is_plat("android") then
+        add_syslinks("android")
+    end
+
+    if on_check then
+        on_check("android", function (package)
+            local ndk = package:toolchain("ndk")
+            local ndk_sdkver = ndk:config("ndk_sdkver")
+            assert(ndk_sdkver and tonumber(ndk_sdkver) > 25, "package(ncnn): need ndk api level > 25")
+        end)
+    end
+
+    on_load(function (package)
+        if package:is_plat("windows") then
+            if package:config("vulkan") then
+                package:add("deps", "vulkansdk")
+            end
+        else
+            if package:is_plat("mingw", "msys") and not is_subhost("macosx") then
+                package:add("ldflags", "-fopenmp")
+            end
+            package:add("links" , "ncnn" .. (package:is_debug() and "d" or ""))
+            if package:is_plat("linux", "macosx", "cross", "android", "mingw", "msys", "bsd") then
+                package:add("deps", "libomp")
+            end
+        end
+    end)
+
+    on_install(function (package)
+        local configs = {
+            "-DNCNN_BUILD_EXAMPLES=OFF",
+            "-DNCNN_BUILD_TOOLS=OFF",
+            "-DNCNN_BUILD_BENCHMARK=OFF",
+            "-DNCNN_BUILD_TESTS=OFF",
+            "-DNCNN_PYTHON=OFF",
+            "-DNCNN_SYSTEM_GLSLANG=ON",
+        }
+        table.insert(configs, "-DCMAKE_BUILD_TYPE=" .. (package:is_debug() and "Debug" or "Release"))
+        table.insert(configs, "-DNCNN_SHARED_LIB=" .. (package:config("shared") and "ON" or "OFF"))
+        table.insert(configs, "-DNCNN_VULKAN=" .. (package:config("vulkan") and "ON" or "OFF"))
+        table.insert(configs, "-DNCNN_SIMPLEOCV=" .. (package:config("simpleocv") and "ON" or "OFF"))
+        import("package.tools.cmake").install(package, configs)
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <ncnn/net.h>
+            void test() {
+                ncnn::Net net;
+                net.load_param("model.param");
+            }
+        ]]}, {configs = {languages = "c++11"}}))
+    end)