Move solution and projects to src

src/Ryujinx.Graphics.GAL/Extents2D.cs

@@ -0,0 +1,31 @@
+using Ryujinx.Common;
+
+namespace Ryujinx.Graphics.GAL
+{
+    public readonly struct Extents2D
+    {
+        public int X1 { get; }
+        public int Y1 { get; }
+        public int X2 { get; }
+        public int Y2 { get; }
+
+        public Extents2D(int x1, int y1, int x2, int y2)
+        {
+            X1 = x1;
+            Y1 = y1;
+            X2 = x2;
+            Y2 = y2;
+        }
+
+        public Extents2D Reduce(int level)
+        {
+            int div = 1 << level;
+            
+            return new Extents2D(
+                X1 >> level, 
+                Y1 >> level,
+                BitUtils.DivRoundUp(X2, div),
+                BitUtils.DivRoundUp(Y2, div));
+        }
+    }
+}