From 08831eecf77cedd3c4192ebab5a9c485fb15d51e Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Wed, 4 Jan 2023 19:15:45 -0300
Subject: IPC refactor part 3+4: New server HIPC message processor (#4188)

* IPC refactor part 3 + 4: New server HIPC message processor with source generator based serialization

* Make types match on calls to AlignUp/AlignDown

* Formatting

* Address some PR feedback

* Move BitfieldExtensions to Ryujinx.Common.Utilities and consolidate implementations

* Rename Reader/Writer to SpanReader/SpanWriter and move to Ryujinx.Common.Memory

* Implement EventType

* Address more PR feedback

* Log request processing errors since they are not normal

* Rename waitable to multiwait and add missing lock

* PR feedback

* Ac_K PR feedback
---
 Ryujinx.Common/Utilities/BitfieldExtensions.cs | 57 ++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 Ryujinx.Common/Utilities/BitfieldExtensions.cs

(limited to 'Ryujinx.Common/Utilities/BitfieldExtensions.cs')

diff --git a/Ryujinx.Common/Utilities/BitfieldExtensions.cs b/Ryujinx.Common/Utilities/BitfieldExtensions.cs
new file mode 100644
index 00000000..ca429944
--- /dev/null
+++ b/Ryujinx.Common/Utilities/BitfieldExtensions.cs
@@ -0,0 +1,57 @@
+using System.Numerics;
+using System.Runtime.CompilerServices;
+
+namespace Ryujinx.Common.Utilities
+{
+    public static class BitfieldExtensions
+    {
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static bool Extract<T>(this T value, int lsb) where T : IBinaryInteger<T>
+        {
+            int bitSize = Unsafe.SizeOf<T>() * 8;
+            lsb &= bitSize - 1;
+
+            return !T.IsZero((value >>> lsb) & T.One);
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T Extract<T>(this T value, int lsb, int length) where T : IBinaryInteger<T>
+        {
+            int bitSize = Unsafe.SizeOf<T>() * 8;
+            lsb &= bitSize - 1;
+
+            return (value >>> lsb) & (~T.Zero >>> (bitSize - length));
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T ExtractSx<T>(this T value, int lsb, int length) where T : IBinaryInteger<T>
+        {
+            int bitSize = Unsafe.SizeOf<T>() * 8;
+            int shift = lsb & (bitSize - 1);
+
+            return (value << (bitSize - (shift + length))) >> (bitSize - length);
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T Insert<T>(this T value, int lsb, bool toInsert) where T : IBinaryInteger<T>
+        {
+            int bitSize = Unsafe.SizeOf<T>() * 8;
+            lsb &= bitSize - 1;
+
+            T mask = T.One << lsb;
+
+            return (value & ~mask) | (toInsert ? mask : T.Zero);
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T Insert<T>(this T value, int lsb, int length, T toInsert) where T : IBinaryInteger<T>
+        {
+            int bitSize = Unsafe.SizeOf<T>() * 8;
+            lsb &= bitSize - 1;
+
+            T mask = (~T.Zero >>> (bitSize - length)) << lsb;
+
+            return (value & ~mask) | ((toInsert << lsb) & mask);
+        }
+    }
+}
\ No newline at end of file
-- 
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