Netcode Bootstrap

2026-05-31 14:27:52 -07:00
parent 99d8d2d2a9
commit 7fa77ce821
1813 changed files with 2921554 additions and 84 deletions
@@ -0,0 +1,91 @@
+using System;
+using Unity.Collections;
+using Unity.Collections.LowLevel.Unsafe;
+using Unity.Mathematics;
+using UnityEngine;
+
+/////////////////////////////////////////////////////////////////////////////////
+
+namespace Rukhanka.DebugDrawer
+{
+public class DrawBuffer<T>: IDisposable where T: unmanaged
+{
+    internal GraphicsBuffer gpuBuffer;
+    internal int counter;
+    internal UnsafeAtomicCounter32 counterAtomic;
+    NativeList<T> bufferData;
+    
+/////////////////////////////////////////////////////////////////////////////////
+
+    public DrawBuffer()
+    {
+        unsafe
+        {
+            fixed (void* counterPtr = &counter)
+            {
+                counterAtomic = new UnsafeAtomicCounter32(counterPtr);
+            }
+        }
+    }
+
+/////////////////////////////////////////////////////////////////////////////////
+
+    internal NativeArray<T> BeginFrame()
+    {
+        ResizeBuffer();
+        counterAtomic.Reset();
+
+        var rv = bufferData.AsArray();
+        return rv;
+    }
+
+/////////////////////////////////////////////////////////////////////////////////
+
+    internal int EndFrame()
+    {
+        if (counter == 0)
+            return 0;
+        
+        ResizeGPUBuffer();
+        var cnt = math.min(bufferData.Length, counter);
+        gpuBuffer.SetData(bufferData.AsArray(), 0, 0, cnt);
+        return cnt;
+    }
+
+/////////////////////////////////////////////////////////////////////////////////
+
+    void ResizeGPUBuffer()
+    {
+        if (gpuBuffer == null || gpuBuffer.count < counter)
+        {
+            if (gpuBuffer != null)
+                gpuBuffer.Dispose();
+            var cnt = math.max(counter, 0xffff);
+            gpuBuffer = new GraphicsBuffer(GraphicsBuffer.Target.Structured, GraphicsBuffer.UsageFlags.LockBufferForWrite, cnt, UnsafeUtility.SizeOf<T>());
+        }
+    }
+        
+/////////////////////////////////////////////////////////////////////////////////
+
+    void ResizeBuffer()
+    {
+        if (!bufferData.IsCreated)
+        {
+            bufferData = new (counter, Allocator.Persistent);
+        }
+        var cnt = math.max(counter, 0xffff);
+        bufferData.Resize(cnt, NativeArrayOptions.ClearMemory);
+    }
+
+/////////////////////////////////////////////////////////////////////////////////
+
+    public void Dispose()
+    {
+        if (gpuBuffer != null)
+            gpuBuffer.Dispose();
+        gpuBuffer = null;
+        
+        bufferData.Dispose();
+    }
+}
+}