Added Backbuffer to Swapchain + RenderCommand API changes

GlitchyEngine/src/Renderer/SwapChain.bf

@@ -2,22 +2,75 @@ namespace GlitchyEngine.Renderer
 {
 	public class SwapChain
 	{
+		private GraphicsContext _context;
+
+		private bool _changed;
+
+		private uint32 _width, _height;
+
 		private Viewport _backBufferViewport;
 
-		public extern GraphicsContext Context {get;}
+		private DepthStencilFormat _depthStencilFormat = .None;
+		
+		public RenderTarget2D _backBuffer ~ _?.ReleaseRef();
+
+		public GraphicsContext Context => _context;
 
 		/**
 		 * Gets or Sets the backbuffers width.
-		 * @remarks @ApplyChanges() needs to be called in order to apply the ganges.
+		 * @remarks @ApplyChanges() needs to be called in order to apply the changes.
 		 */
-		public extern uint32 Width {get; set;}
+		public uint32 Width
+		{
+			get => _width;
+			set
+			{
+				if(_width == value)
+					return;
+
+				_width = value;
+				_changed = true;
+			}
+		}
+		
 		/**
 		 * Gets or Sets the backbuffers height.
-		 * @remarks @ApplyChanges() needs to be called in order to apply the ganges.
+		 * @remarks @ApplyChanges() needs to be called in order to apply the changes.
 		 */
-		public extern uint32 Height {get; set;}
+		public uint32 Height
+		{
+			get => _height;
+			set
+			{
+				if(_height == value)
+					return;
+
+				_height = value;
+				_changed = true;
+			}
+		}
 
 		public Viewport BackbufferViewport => _backBufferViewport;
+		
+		/**
+		 * Gets or Sets the format of the depth stencil buffer.
+		 * If set to DepthStencilFormat.None DepthStencilTarget will be null.
+		 * @remarks @ApplyChanges() needs to be called in order to apply the changes.
+		 */
+		public DepthStencilFormat DepthStencilFormat
+		{
+			get => _depthStencilFormat;
+			set
+			{
+				if(_depthStencilFormat == value)
+					return;
+
+				_depthStencilFormat = value;
+				_changed = true;
+			}
+		}
+
+		public RenderTarget2D BackBuffer => _backBuffer;
 
 		public extern void Init();