First Version

Assets/uWindowCapture/Samples/Texture Buffer/UwcGetBufferExample.cs

@@ -0,0 +1,65 @@
+using UnityEngine;
+using System;
+using System.Runtime.InteropServices;
+
+namespace uWindowCapture
+{
+
+public class UwcGetBufferExample : MonoBehaviour
+{
+    [SerializeField]
+    UwcWindowTexture uwcTexture;
+
+    Texture2D texture_;
+    Color32[] pixels_;
+    GCHandle handle_;
+    IntPtr ptr_ = IntPtr.Zero;
+
+    [DllImport("msvcrt.dll", CallingConvention = CallingConvention.Cdecl, SetLastError = false)]
+    public static extern IntPtr memcpy(IntPtr dest, IntPtr src, int count);
+
+    bool isValid
+    {
+        get 
+        { 
+            if (!uwcTexture) return false;
+
+            var window = uwcTexture.window;
+            return window != null && window.buffer != IntPtr.Zero;
+        }
+    }
+
+    void OnDestroy()
+    {
+        if (ptr_ != IntPtr.Zero) {
+            handle_.Free();
+        }
+    }
+
+    void Update()
+    {
+        if (!isValid) return;
+
+        var window = uwcTexture.window;
+        var width = window.rawWidth;
+        var height = window.rawHeight;
+
+        if (texture_ == null || width != texture_.width || height != texture_.height) {
+            texture_ = new Texture2D(width, height, TextureFormat.RGBA32, false);
+            texture_.filterMode = FilterMode.Bilinear;
+            pixels_ = texture_.GetPixels32();
+            handle_ = GCHandle.Alloc(pixels_, GCHandleType.Pinned);
+            ptr_ = handle_.AddrOfPinnedObject();
+            GetComponent<Renderer>().material.mainTexture = texture_;
+        }
+
+        // memcpy can be run in another thread. 
+        var buffer = window.buffer;
+        memcpy(ptr_, buffer, width * height * sizeof(Byte) * 4);
+
+        texture_.SetPixels32(pixels_);
+        texture_.Apply();
+    }
+}
+
+}