anx.framework/ANX.Framework/Graphics/Texture2D.cs

using System;
using System.IO;
using System.Runtime.InteropServices;
using ANX.Framework.NonXNA;
using ANX.Framework.NonXNA.RenderSystem;

// This file is part of the ANX.Framework created by the
// "ANX.Framework developer group" and released under the Ms-PL license.
// For details see: http://anxframework.codeplex.com/license

namespace ANX.Framework.Graphics
{
	public class Texture2D : Texture, IGraphicsResource
	{
		#region Private
		protected internal int width;
		protected internal int height;

		internal float OneOverWidth;
		internal float OneOverHeight;

		private INativeTexture2D nativeTexture2D;
		private INativeTexture2D NativeTexture2D
		{
			get
			{
				if (nativeTexture2D == null)
					CreateNativeTextureSurface();

				return nativeTexture2D;
			}
		}
		#endregion

		#region Public
		public Rectangle Bounds
		{
			get
			{
				return new Rectangle(0, 0, this.width, this.height);
			}
		}

		public int Width
		{
			get
			{
				return this.width;
			}
		}

		public int Height
		{
			get
			{
				return this.height;
			}
		}
		#endregion

		#region Constructor (TODO)
		internal Texture2D(GraphicsDevice graphicsDevice)
			: base(graphicsDevice)
		{
		}

		public Texture2D(GraphicsDevice graphicsDevice, int width, int height)
			: base(graphicsDevice)
		{
			this.width = width;
			this.height = height;
			OneOverWidth = 1f / width;
			OneOverHeight = 1f / height;

			base.levelCount = 1;
			base.format = SurfaceFormat.Color;

			CreateNativeTextureSurface();
		}

		public Texture2D(GraphicsDevice graphicsDevice, int width, int height, [MarshalAsAttribute(UnmanagedType.U1)] bool mipMap,
			SurfaceFormat format)
			: base(graphicsDevice)
		{
			this.width = width;
			this.height = height;
			OneOverWidth = 1f / width;
			OneOverHeight = 1f / height;

			// TODO: pass the mipmap parameter to the creation of the texture to let the graphics card generate mipmaps!
			base.levelCount = 1;
			base.format = format;

			CreateNativeTextureSurface();
		}

		internal Texture2D(GraphicsDevice graphicsDevice, int width, int height, int mipCount, SurfaceFormat format)
			: base(graphicsDevice)
		{
			this.width = width;
			this.height = height;
			OneOverWidth = 1f / width;
			OneOverHeight = 1f / height;

			base.levelCount = mipCount;
			base.format = format;

			CreateNativeTextureSurface();
		}
		#endregion

		#region FromStream (TODO)
		public static Texture2D FromStream(GraphicsDevice graphicsDevice, Stream stream)
		{
			throw new NotImplementedException();
		}

		public static Texture2D FromStream(GraphicsDevice graphicsDevice, Stream stream, int width, int height,
			[MarshalAsAttribute(UnmanagedType.U1)] bool zoom)
		{
			throw new NotImplementedException();
		}
		#endregion

		#region GetData
		public void GetData<T>(int level, Nullable<Rectangle> rect, T[] data, int startIndex, int elementCount) where T : struct
		{
			NativeTexture2D.GetData(level, rect, data, startIndex, elementCount);
		}

		public void GetData<T>(T[] data) where T : struct
		{
			NativeTexture.GetData(data);
		}

		public void GetData<T>(T[] data, int startIndex, int elementCount) where T : struct
		{
			NativeTexture.GetData(data, startIndex, elementCount);
		}
		#endregion

		#region SetData
		public void SetData<T>(int level, Nullable<Rectangle> rect, T[] data, int startIndex, int elementCount) where T : struct
		{
			NativeTexture2D.SetData(level, rect, data, startIndex, elementCount);
		}

		public void SetData<T>(T[] data) where T : struct
		{
			NativeTexture.SetData<T>(GraphicsDevice, data);
		}

		public void SetData<T>(T[] data, int startIndex, int elementCount) where T : struct
		{
			NativeTexture.SetData<T>(GraphicsDevice, data, startIndex, elementCount);
		}
		#endregion

		#region SaveAsJpeg
		public void SaveAsJpeg(Stream stream, int width, int height)
		{
			NativeTexture2D.SaveAsJpeg(stream, width, height);
		}
		#endregion

		#region SaveAsPng
		public void SaveAsPng(Stream stream, int width, int height)
		{
			NativeTexture2D.SaveAsPng(stream, width, height);
		}
		#endregion

		#region Dispose
		public override void Dispose()
		{
			base.Dispose(true);
		}

		protected override void Dispose([MarshalAs(UnmanagedType.U1)] bool disposeManaged)
		{
			base.Dispose(disposeManaged);
		}
		#endregion

		#region ReCreateNativeTextureSurface
		internal override void ReCreateNativeTextureSurface()
		{
			CreateNativeTextureSurface();
		}
		#endregion

		#region CreateNativeTextureSurface
		private void CreateNativeTextureSurface()
		{
			var creator = AddInSystemFactory.Instance.GetDefaultCreator<IRenderSystemCreator>();
			nativeTexture2D = creator.CreateTexture(GraphicsDevice, format, width, height, levelCount);
			base.nativeTexture = nativeTexture2D;
		}
		#endregion
	}
}