From 0b2cd94cf43cfcdda40e74841eb36b901210a82a Mon Sep 17 00:00:00 2001
From: Yauhen Pahrabniak <emcifuntik@gmail.com>
Date: Mon, 8 May 2023 23:05:14 +0200
Subject: [PATCH] Disabled AVX instructions to support ghetto PCs

---
 .../l/libopus/patches/1.3.1/cmake.patch       | 13 ++++++++
 localpkg/packages/l/libopus/xmake.lua         | 32 +++++++++++++++++++
 xmake.lua                                     |  4 ++-
 3 files changed, 48 insertions(+), 1 deletion(-)
 create mode 100644 localpkg/packages/l/libopus/patches/1.3.1/cmake.patch
 create mode 100644 localpkg/packages/l/libopus/xmake.lua

diff --git a/localpkg/packages/l/libopus/patches/1.3.1/cmake.patch b/localpkg/packages/l/libopus/patches/1.3.1/cmake.patch
new file mode 100644
index 0000000..79271ea
--- /dev/null
+++ b/localpkg/packages/l/libopus/patches/1.3.1/cmake.patch
@@ -0,0 +1,13 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 17ee3fc2..9027d073 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -16,7 +16,6 @@ string(REGEX
+ message(STATUS "Opus project version: ${PROJECT_VERSION}")
+ 
+ project(Opus LANGUAGES C VERSION ${PROJECT_VERSION})
+-include(opus_buildtype.cmake)
+ 
+ option(OPUS_STACK_PROTECTOR "Use stack protection" ON)
+ option(OPUS_USE_ALLOCA "Use alloca for stack arrays (on non-C99 compilers)" OFF)
+ 
\ No newline at end of file
diff --git a/localpkg/packages/l/libopus/xmake.lua b/localpkg/packages/l/libopus/xmake.lua
new file mode 100644
index 0000000..1ad4a01
--- /dev/null
+++ b/localpkg/packages/l/libopus/xmake.lua
@@ -0,0 +1,32 @@
+package("libopus")
+
+    set_homepage("https://opus-codec.org")
+    set_description("Modern audio compression for the internet.")
+
+    set_urls("https://archive.mozilla.org/pub/opus/opus-$(version).tar.gz",
+             "https://gitlab.xiph.org/xiph/opus.git")
+
+    add_versions("1.3.1", "65b58e1e25b2a114157014736a3d9dfeaad8d41be1c8179866f144a2fb44ff9d")
+    add_patches("1.3.1", path.join(os.scriptdir(), "patches", "1.3.1", "cmake.patch"), "603c746006d3f1f44700bc55fd46c2b466c5002b3612055af0216463a115c42f")
+    add_configs("avxSupported", { description = "AVX_SUPPORTED", default = true, type = "boolean" })
+    add_configs("opusx86MayHaveAvx", { description = "OPUS_X86_MAY_HAVE_AVX", default = true, type = "boolean" })
+
+    add_deps("cmake")
+
+    on_install("windows", "linux", "macosx", "iphoneos", "mingw", "android", function (package)
+        local configs = {}
+        table.insert(configs, "-DCMAKE_BUILD_TYPE=" .. (package:debug() and "Debug" or "Release"))
+        table.insert(configs, "-DBUILD_SHARED_LIBS=" .. (package:config("shared") and "ON" or "OFF"))
+        table.insert(configs, "-DAVX_SUPPORTED=" .. (package:config("avxSupported") and "ON" or "OFF"))
+        table.insert(configs, "-DOPUS_X86_MAY_HAVE_AVX=" .. (package:config("opusx86MayHaveAvx") and "ON" or "OFF"))
+        table.insert(configs, "-DCMAKE_POSITION_INDEPENDENT_CODE=ON")
+        if package:is_plat("mingw") then
+            -- Disable stack protection on MinGW since it causes link errors
+            table.insert(configs, "-DOPUS_STACK_PROTECTOR=OFF")
+        end
+        import("package.tools.cmake").install(package, configs)
+    end)
+
+    on_test(function (package)
+        assert(package:has_cfuncs("opus_encoder_create", {includes = "opus/opus.h"}))
+    end)
\ No newline at end of file
diff --git a/xmake.lua b/xmake.lua
index 5899c85..f4797a4 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -8,10 +8,11 @@ set_languages("cxx20", "cxx2a")
 set_runtimes(is_mode("debug") and "MDd" or "MD")
 set_symbols("debug")
 
+add_repositories("local-repo localpkg")
 
 add_requires("bass", {verify = false})
 add_requires("bass-fx", {verify = false})
-add_requires("libopus", {verify = false})
+add_requires("libopus", {verify = false, configs = { avxSupported = false, opusx86MayHaveAvx = false }})
 add_requires("rnnoise f75e7dd", {verify = false})
 
 target("alt-voice")
@@ -22,6 +23,7 @@ target("alt-voice")
     add_headerfiles("src/**.h", "include/**.h")
     add_includedirs("src/", "include/", { public = true })
     add_packages("bass", "bass-fx", "libopus", "rnnoise")
+
     after_build(function (target)
         for pkg, pkg_details in pairs(target:pkgs()) do
             if os.isdir(pkg_details._INFO.installdir) then