Query Available RAM on macOS (#4000)

* Add crowdin bagde and informations in readme.

* Update README.md

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Update README.md

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

README.md

@@ -21,6 +21,10 @@
         <img src="https://github.com/Ryujinx/Ryujinx/actions/workflows/release.yml/badge.svg"
             alt="">
     </a>
+    <a href="https://crwd.in/ryujinx">
+        <img src="https://badges.crowdin.net/ryujinx/localized.svg"
+            alt="">
+    </a>
     <a href="https://discord.com/invite/VkQYXAZ">
         <img src="https://img.shields.io/discord/410208534861447168?color=5865F2&label=Ryujinx&logo=discord&logoColor=white"
             alt="Discord">
@@ -48,6 +52,8 @@ See our [Setup & Configuration Guide](https://github.com/Ryujinx/Ryujinx/wiki/Ry
 For our Local Wireless and LAN builds, see our [Multiplayer: Local Play/Local Wireless Guide
 ](https://github.com/Ryujinx/Ryujinx/wiki/Multiplayer-(LDN-Local-Wireless)-Guide).
 
+Avalonia UI comes with translations for various languages. See [Crowdin](https://crwd.in/ryujinx) for more information.
+
 ## Latest build
 
 These builds are compiled automatically for each commit on the master branch. While we strive to ensure optimal stability and performance prior to pushing an update, our automated builds **may be unstable or completely broken.**

Ryujinx.Common/SystemInfo/MacOSSystemInfo.cs

@@ -28,9 +28,39 @@ namespace Ryujinx.Common.SystemInfo
 
             CpuName = $"{cpuName} ; {LogicalCoreCount} logical";
             RamTotal = totalRAM;
+            RamAvailable = GetVMInfoAvailableMemory();
         }
 
-        [DllImport("libSystem.dylib", CharSet = CharSet.Ansi, SetLastError = true)]
+        static ulong GetVMInfoAvailableMemory()
+        {
+            var port = mach_host_self();
+
+            uint pageSize = 0;
+            var result = host_page_size(port, ref pageSize);
+
+            if (result != 0)
+            {
+                Logger.Error?.Print(LogClass.Application, $"Failed to query Available RAM. host_page_size() error = {result}");
+                return 0;
+            }
+
+            const int flavor = 4; // HOST_VM_INFO64
+            uint count = (uint)(Marshal.SizeOf<VMStatistics64>() / sizeof(int)); // HOST_VM_INFO64_COUNT
+            VMStatistics64 stats = new();
+            result = host_statistics64(port, flavor, ref stats, ref count);
+
+            if (result != 0)
+            {
+                Logger.Error?.Print(LogClass.Application, $"Failed to query Available RAM. host_statistics64() error = {result}");
+                return 0;
+            }
+
+            return (ulong)(stats.FreeCount + stats.InactiveCount) * pageSize;
+        }
+
+        private const string SystemLibraryName = "libSystem.dylib";
+
+        [DllImport(SystemLibraryName, CharSet = CharSet.Ansi, SetLastError = true)]
         private static extern int sysctlbyname(string name, IntPtr oldValue, ref ulong oldSize, IntPtr newValue, ulong newValueSize);
 
         private static int sysctlbyname(string name, IntPtr oldValue, ref ulong oldSize)
@@ -85,5 +115,43 @@ namespace Ryujinx.Common.SystemInfo
 
             return res;
         }
+
+        [DllImport(SystemLibraryName, CharSet = CharSet.Ansi, SetLastError = true)]
+        private static extern uint mach_host_self();
+
+        [DllImport(SystemLibraryName, CharSet = CharSet.Ansi, SetLastError = true)]
+        private static extern int host_page_size(uint host, ref uint out_page_size);
+
+        [StructLayout(LayoutKind.Sequential, Pack = 8)]
+        struct VMStatistics64
+        {
+            public uint FreeCount;
+            public uint ActiveCount;
+            public uint InactiveCount;
+            public uint WireCount;
+            public ulong ZeroFillCount;
+            public ulong Reactivations;
+            public ulong Pageins;
+            public ulong Pageouts;
+            public ulong Faults;
+            public ulong CowFaults;
+            public ulong Lookups;
+            public ulong Hits;
+            public ulong Purges;
+            public uint PurgeableCount;
+            public uint SpeculativeCount;
+            public ulong Decompressions;
+            public ulong Compressions;
+            public ulong Swapins;
+            public ulong Swapouts;
+            public uint CompressorPageCount;
+            public uint ThrottledCount;
+            public uint ExternalPageCount;
+            public uint InternalPageCount;
+            public ulong TotalUncompressedPagesInCompressor;
+        }
+
+        [DllImport(SystemLibraryName, CharSet = CharSet.Ansi, SetLastError = true)]
+        private static extern int host_statistics64(uint host_priv, int host_flavor, ref VMStatistics64 host_info64_out, ref uint host_info64_outCnt);
     }
 }

crowdin.yml

@@ -1,3 +1,3 @@
 files:
-  - source: Ryujinx.Ava/Assets/Locales/en_US.json
-    translation: Ryujinx.Ava/Assets/Locales/%locale_with_underscore%.json
+  - source: /**/Assets/Locales/en_US.json
+    translation: /**/Assets/Locales/%locale_with_underscore%.json