From a5cf130e2cffd73d54599493c0db62d93ddaea84 Mon Sep 17 00:00:00 2001
From: Er2 <er2@dismail.de>
Date: Sat, 13 Apr 2024 21:13:23 +0300
Subject: [PATCH] Add FreeBSD support

---
 meson.build                      |  8 +++++++-
 package-native.sh                | 16 ++++++++++++++--
 src/util/thread.h                |  4 ++++
 src/util/util_env.cpp            | 14 ++++++++++++++
 src/util/util_win32_compat.h     |  2 +-
 src/wsi/sdl2/wsi_platform_sdl2.h |  2 +-
 6 files changed, 41 insertions(+), 5 deletions(-)

diff --git a/meson.build b/meson.build
index e35a9de0..70a93eb1 100644
--- a/meson.build
+++ b/meson.build
@@ -131,7 +131,13 @@ else
   dxvk_wsi = get_option('dxvk_native_wsi')
   
   if dxvk_wsi == 'sdl2'
-    lib_sdl2 = cpp.find_library('SDL2')
+    if platform == 'freebsd'
+      # kinda hacky
+      dxvk_include_dirs += ['/usr/local/include']
+      lib_sdl2 = dependency('SDL2', required: true)
+    else
+      lib_sdl2 = cpp.find_library('SDL2', required: true)
+    endif
     compiler_args += ['-DDXVK_WSI_SDL2']
   elif dxvk_wsi == 'glfw'
     lib_glfw = cpp.find_library('glfw')
diff --git a/package-native.sh b/package-native.sh
index 56915e63..cbd4132e 100755
--- a/package-native.sh
+++ b/package-native.sh
@@ -25,6 +25,8 @@ shift 2
 opt_nopackage=0
 opt_devbuild=0
 opt_buildid=false
+opt_64_only=0
+opt_32_only=0
 
 CC=${CC:="gcc"}
 CXX=${CXX:="g++"}
@@ -41,6 +43,12 @@ while [ $# -gt 0 ]; do
   "--build-id")
     opt_buildid=true
     ;;
+  "--64-only")
+    opt_64_only=1
+    ;;
+  "--32-only")
+    opt_32_only=1
+    ;;
   *)
     echo "Unrecognized option: $1" >&2
     exit 1
@@ -81,8 +89,12 @@ function package {
   rm -R "dxvk-native-$DXVK_VERSION"
 }
 
-build_arch 64 lib
-build_arch 32 lib32
+if [ $opt_32_only -eq 0 ]; then
+  build_arch 64 lib
+fi
+if [ $opt_64_only -eq 0 ]; then
+  build_arch 32 lib32
+fi
 
 if [ $opt_nopackage -eq 0 ]; then
   package
diff --git a/src/util/thread.h b/src/util/thread.h
index 6e25f407..2c20c02e 100644
--- a/src/util/thread.h
+++ b/src/util/thread.h
@@ -316,7 +316,11 @@ namespace dxvk {
       switch (priority) {
         default:
         case ThreadPriority::Normal: policy = SCHED_OTHER; break;
+#ifndef __linux__
+        case ThreadPriority::Lowest: policy = SCHED_OTHER; break;
+#else
         case ThreadPriority::Lowest: policy = SCHED_IDLE;  break;
+#endif
       }
       ::pthread_setschedparam(this->native_handle(), policy, &param);
     }
diff --git a/src/util/util_env.cpp b/src/util/util_env.cpp
index 1b0901f6..6469b6a4 100644
--- a/src/util/util_env.cpp
+++ b/src/util/util_env.cpp
@@ -6,6 +6,9 @@
 #ifdef __linux__
 #include <unistd.h>
 #include <limits.h>
+#elif defined(__FreeBSD__)
+#include <sys/sysctl.h>
+#include <unistd.h>
 #endif
 
 #include "util_env.h"
@@ -85,6 +88,17 @@ namespace dxvk::env {
     size_t count = readlink("/proc/self/exe", exePath.data(), exePath.size());
 
     return std::string(exePath.begin(), exePath.begin() + count);
+#elif defined(__FreeBSD__)
+    int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, getpid()};
+    std::string exePath(PATH_MAX, '\0');
+    size_t size = exePath.size();
+
+    if (sysctl(mib, 4, exePath.data(), &size, NULL, 0) != 0) {
+        // throw error here?
+        return "";
+    }
+
+    return exePath;
 #endif
   }
   
diff --git a/src/util/util_win32_compat.h b/src/util/util_win32_compat.h
index 74ea6ece..5b156c6e 100644
--- a/src/util/util_win32_compat.h
+++ b/src/util/util_win32_compat.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#if defined(__linux__)
+#if defined(__unix__)
 
 #include <windows.h>
 #include <dlfcn.h>
diff --git a/src/wsi/sdl2/wsi_platform_sdl2.h b/src/wsi/sdl2/wsi_platform_sdl2.h
index 411fe8f6..70620201 100644
--- a/src/wsi/sdl2/wsi_platform_sdl2.h
+++ b/src/wsi/sdl2/wsi_platform_sdl2.h
@@ -18,4 +18,4 @@ namespace dxvk::wsi {
     return displayId < displayCount && displayId >= 0;
   }
   
-}
\ No newline at end of file
+}