Sdl backend (#670)

* [audio] added sdl audio backend and in-tree atrac9 decoder

* [input] replaced per-platform pad readers with sdl gamepad input

* [video] added sdl window and host display plumbing

* [gui] added host display options and per-game render settings

* [bink] synced host movie playback to the guest audio clock

* [cpu] hooked windows write faults into guest image tracking

* [perf] added guest and render profiling, reserved host cpu lanes

* [kernel] fixed stale pthread mutex handle alias

* [host] wired the sdl session, save-data paths and project references

* [audio] hoisted ajm trace stackalloc out of its loop

* [video] Add guest image sync setting

* [build] Strip native symbols

* reuse

tests/SharpEmu.Libs.Tests/VideoOut/HostVideoOptionsTests.cs

@@ -0,0 +1,29 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using SharpEmu.Libs.VideoOut;
+using Xunit;
+
+namespace SharpEmu.Libs.Tests.VideoOut;
+
+public sealed class HostVideoOptionsTests
+{
+    [Fact]
+    public void NormalizeClampsUnsafeHostValues()
+    {
+        var options = new HostVideoOptions
+        {
+            Width = 1,
+            Height = 99_999,
+            DisplayIndex = -2,
+            RefreshRate = 5000,
+            HdrMode = (HostHdrMode)99,
+        }.Normalize();
+
+        Assert.Equal(640, options.Width);
+        Assert.Equal(16384, options.Height);
+        Assert.Equal(0, options.DisplayIndex);
+        Assert.Equal(1000, options.RefreshRate);
+        Assert.Equal(HostHdrMode.Auto, options.HdrMode);
+    }
+}