add slang (#4138)

* add slang

* Add missing cmake dependency

* add install platforms

* use release source

* Revert "use release source"

This reverts commit 91339fe460.

* remove test and example

* address reviews

* bump version

* bump version

---------

Co-authored-by: star9029 <hengxings783@gmail.com>

packages/s/slang/xmake.lua

@@ -0,0 +1,53 @@
+package("slang")
+    set_homepage("https://github.com/shader-slang/slang")
+    set_description("Making it easier to work with shaders")
+    set_license("MIT")
+
+    add_urls("https://github.com/shader-slang/slang.git")
+
+    add_versions("v2024.1.18", "efdbb954c57b89362e390f955d45f90e59d66878")
+    add_versions("v2024.1.17", "62b7219e715bd4c0f984bcd98c9767fb6422c78f")
+
+    add_configs("shared", { description = "Build shared library", default = true, type = "boolean", readonly = true })
+    add_configs("embed_stdlib_source", { description = "Embed stdlib source in the binary", default = true, type = "boolean" })
+    add_configs("embed_stdlib", { description = "Build slang with an embedded version of the stdlib", default = false, type = "boolean" })
+    add_configs("full_ir_validation", { description = "Enable full IR validation (SLOW!)", default = false, type = "boolean" })
+    add_configs("gfx", { description = "Enable gfx targets", default = false, type = "boolean" })
+    add_configs("slangd", { description = "Enable language server target", default = false, type = "boolean" })
+    add_configs("slangc", { description = "Enable standalone compiler target", default = false, type = "boolean" })
+    add_configs("slangrt", { description = "Enable runtime target", default = false, type = "boolean" })
+    add_configs("slang_glslang", { description = "Enable glslang dependency and slang-glslang wrapper target", default = false, type = "boolean" })
+    add_configs("slang_llvm_flavor", { description = "How to get or build slang-llvm (available options: FETCH_BINARY, USE_SYSTEM_LLVM, DISABLE)", default = "DISABLE", type = "string" })
+
+    add_deps("cmake")
+
+    on_install("windows|x64", "macosx", "linux|x86_64", function (package)
+        local configs = {"-DSLANG_ENABLE_TESTS=OFF", "-DSLANG_ENABLE_EXAMPLES=OFF"}
+        table.insert(configs, "-DCMAKE_BUILD_TYPE=" .. (package:is_debug() and "Debug" or "Release"))
+        table.insert(configs, "-DSLANG_LIB_TYPE=" .. (package:config("shared") and "SHARED" or "STATIC"))
+        table.insert(configs, "-DSLANG_EMBED_STDLIB_SOURCE=" .. (package:config("embed_stdlib_source") and "ON" or "OFF"))
+        table.insert(configs, "-DSLANG_EMBED_STDLIB=" .. (package:config("embed_stdlib") and "ON" or "OFF"))
+        table.insert(configs, "-DSLANG_ENABLE_FULL_IR_VALIDATION=" .. (package:config("full_ir_validation") and "ON" or "OFF"))
+        table.insert(configs, "-DSLANG_ENABLE_ASAN=" .. (package:config("asan") and "ON" or "OFF"))
+        table.insert(configs, "-DSLANG_ENABLE_GFX=" .. (package:config("gfx") and "ON" or "OFF"))
+        table.insert(configs, "-DSLANG_ENABLE_SLANGD=" .. (package:config("slangd") and "ON" or "OFF"))
+        table.insert(configs, "-DSLANG_ENABLE_SLANGC=" .. (package:config("slangc") and "ON" or "OFF"))
+        table.insert(configs, "-DSLANG_ENABLE_SLANGRT=" .. (package:config("slangrt") and "ON" or "OFF"))
+        table.insert(configs, "-DSLANG_ENABLE_SLANG_GLSLANG=" .. (package:config("slang_glslang") and "ON" or "OFF"))
+        table.insert(configs, "-DSLANG_SLANG_LLVM_FLAVOR=" .. package:config("slang_llvm_flavor"))
+
+        import("package.tools.cmake").install(package, configs)
+        package:addenv("PATH", "bin")
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({ test = [[
+            #include <slang-com-ptr.h>
+            #include <slang.h>
+
+            void test() {
+                Slang::ComPtr<slang::IGlobalSession> global_session;
+                slang::createGlobalSession(global_session.writeRef());
+            }
+        ]] }, {configs = {languages = "c++17"}}))
+    end)