Derive AlphaTexture2D from Texture2D.
This commit is contained in:
the_fiddler
parent
30f75d4389
commit
71addb4923
2 changed files with 265 additions and 165 deletions
|
|
@ -36,15 +36,10 @@ namespace OpenTK.Graphics
|
|||
/// <summary>
|
||||
/// Encapsulates an OpenGL texture.
|
||||
/// </summary>
|
||||
class AlphaTexture2D : IGraphicsResource
|
||||
class AlphaTexture2D : Texture2D
|
||||
{
|
||||
#region Fields
|
||||
|
||||
GraphicsContext context;
|
||||
int id;
|
||||
int width, height;
|
||||
bool disposed;
|
||||
|
||||
#endregion
|
||||
|
||||
#region Constructors
|
||||
|
|
@ -53,174 +48,20 @@ namespace OpenTK.Graphics
|
|||
/// Constructs a new Texture.
|
||||
/// </summary>
|
||||
public AlphaTexture2D(int width, int height)
|
||||
{
|
||||
Width = width;
|
||||
Height = height;
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region IGraphicsResource Members
|
||||
|
||||
GraphicsContext IGraphicsResource.Context { get { return context; } }
|
||||
|
||||
int IGraphicsResource.Id
|
||||
{
|
||||
get
|
||||
{
|
||||
if (id == 0)
|
||||
{
|
||||
GraphicsContext.Assert();
|
||||
context = GraphicsContext.CurrentContext;
|
||||
|
||||
id = GL.GenTexture();
|
||||
if (id == 0)
|
||||
throw new GraphicsResourceException(String.Format("Texture creation failed, (Error: {0})", GL.GetError()));
|
||||
|
||||
// Ensure the texture is allocated.
|
||||
GL.BindTexture(TextureTarget.Texture2D, id);
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)All.Linear);
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)All.Linear);
|
||||
if (GL.SupportsExtension("Version12"))
|
||||
{
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)All.ClampToEdge);
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)All.ClampToEdge);
|
||||
}
|
||||
else
|
||||
{
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)All.Clamp);
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)All.Clamp);
|
||||
}
|
||||
|
||||
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Alpha, Width, Height, 0,
|
||||
OpenTK.Graphics.PixelFormat.Rgba, PixelType.UnsignedByte, IntPtr.Zero);
|
||||
}
|
||||
|
||||
return id;
|
||||
}
|
||||
}
|
||||
: base(width, height)
|
||||
{ }
|
||||
|
||||
#endregion
|
||||
|
||||
#region Public Members
|
||||
|
||||
#region public int Width
|
||||
|
||||
/// <summary>Gets the width of the texture.</summary>
|
||||
public int Width { get { return width; } private set { width = value; } }
|
||||
|
||||
#endregion
|
||||
|
||||
#region public int Height
|
||||
#region Protected Members
|
||||
|
||||
/// <summary>Gets the height of the texture.</summary>
|
||||
public int Height { get { return height; } private set { height = value; } }
|
||||
|
||||
#endregion
|
||||
|
||||
#region WriteRegion
|
||||
|
||||
public void WriteRegion(Rectangle source, Rectangle target, int mipLevel, Bitmap bitmap)
|
||||
protected override PixelInternalFormat InternalFormat
|
||||
{
|
||||
if (bitmap == null)
|
||||
throw new ArgumentNullException("data");
|
||||
|
||||
GraphicsUnit unit = GraphicsUnit.Pixel;
|
||||
|
||||
if (!bitmap.GetBounds(ref unit).Contains(source))
|
||||
throw new InvalidOperationException("The source Rectangle is larger than the Bitmap.");
|
||||
|
||||
if (mipLevel < 0)
|
||||
throw new ArgumentOutOfRangeException("mipLevel");
|
||||
|
||||
Bind();
|
||||
|
||||
BitmapData data = bitmap.LockBits(source, ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
|
||||
|
||||
GL.PushClientAttrib(ClientAttribMask.ClientPixelStoreBit);
|
||||
try
|
||||
{
|
||||
GL.PixelStore(PixelStoreParameter.UnpackAlignment, 1);
|
||||
GL.PixelStore(PixelStoreParameter.UnpackRowLength, bitmap.Width);
|
||||
GL.TexSubImage2D(TextureTarget.Texture2D, mipLevel,
|
||||
target.Left, target.Top,
|
||||
target.Width, target.Height,
|
||||
OpenTK.Graphics.PixelFormat.Rgba,
|
||||
PixelType.UnsignedByte, data.Scan0);
|
||||
}
|
||||
finally
|
||||
{
|
||||
GL.PopClientAttrib();
|
||||
}
|
||||
|
||||
bitmap.UnlockBits(data);
|
||||
}
|
||||
|
||||
public void WriteRegion(TextureRegion2D region, int mipLevel)
|
||||
{
|
||||
if (mipLevel < 0)
|
||||
throw new ArgumentOutOfRangeException("miplevel");
|
||||
|
||||
GL.TexSubImage2D(TextureTarget.Texture2D, mipLevel,
|
||||
region.Rectangle.X, region.Rectangle.Y,
|
||||
region.Rectangle.Width, region.Rectangle.Height,
|
||||
PixelFormat.Bgra, PixelType.UnsignedByte, region);
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region ReadRegion
|
||||
|
||||
public TextureRegion2D ReadRegion(Rectangle rect, int mipLevel)
|
||||
{
|
||||
if (mipLevel < 0)
|
||||
throw new ArgumentOutOfRangeException("miplevel");
|
||||
|
||||
TextureRegion2D<int> region = new TextureRegion2D<int>(rect);
|
||||
|
||||
GL.GetTexImage(TextureTarget.Texture2D, mipLevel, PixelFormat.Bgra, PixelType.UnsignedByte, region.Data);
|
||||
|
||||
return region;
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region Bind
|
||||
|
||||
public void Bind()
|
||||
{
|
||||
GL.BindTexture(TextureTarget.Texture2D, (this as IGraphicsResource).Id);
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#endregion
|
||||
|
||||
#region IDisposable Members
|
||||
|
||||
public void Dispose()
|
||||
{
|
||||
Dispose(true);
|
||||
GC.SuppressFinalize(this);
|
||||
}
|
||||
|
||||
void Dispose(bool manual)
|
||||
{
|
||||
if (!disposed)
|
||||
{
|
||||
if (manual)
|
||||
{
|
||||
GL.DeleteTexture(id);
|
||||
}
|
||||
disposed = true;
|
||||
}
|
||||
}
|
||||
|
||||
~AlphaTexture2D()
|
||||
{
|
||||
GraphicsContext context = (this as IGraphicsResource).Context;
|
||||
if (context != null)
|
||||
(context as IGraphicsContextInternal).RegisterForDisposal(this);
|
||||
get { return PixelInternalFormat.Alpha; }
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
|
|
|||
259
Source/Utilities/Graphics/Texture2D.cs
Normal file
259
Source/Utilities/Graphics/Texture2D.cs
Normal file
|
|
@ -0,0 +1,259 @@
|
|||
#region License
|
||||
//
|
||||
// The Open Toolkit Library License
|
||||
//
|
||||
// Copyright (c) 2006 - 2008 the Open Toolkit library, except where noted.
|
||||
//
|
||||
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
// of this software and associated documentation files (the "Software"), to deal
|
||||
// in the Software without restriction, including without limitation the rights to
|
||||
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
||||
// the Software, and to permit persons to whom the Software is furnished to do
|
||||
// so, subject to the following conditions:
|
||||
//
|
||||
// The above copyright notice and this permission notice shall be included in all
|
||||
// copies or substantial portions of the Software.
|
||||
//
|
||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||
// OTHER DEALINGS IN THE SOFTWARE.
|
||||
//
|
||||
#endregion
|
||||
|
||||
using System;
|
||||
using System.Collections.Generic;
|
||||
using System.Text;
|
||||
using System.Drawing;
|
||||
using System.Drawing.Imaging;
|
||||
|
||||
namespace OpenTK.Graphics
|
||||
{
|
||||
abstract class Texture2D : IGraphicsResource
|
||||
{
|
||||
#region Fields
|
||||
|
||||
GraphicsContext context;
|
||||
int id;
|
||||
int width, height;
|
||||
bool disposed;
|
||||
|
||||
TextureMagFilter mag_filter = TextureMagFilter.Linear;
|
||||
TextureMinFilter min_filter = TextureMinFilter.Linear;
|
||||
|
||||
#endregion
|
||||
|
||||
#region Constructors
|
||||
|
||||
public Texture2D(int width, int height)
|
||||
{
|
||||
if (width <= 0)
|
||||
throw new ArgumentOutOfRangeException("width");
|
||||
|
||||
if (height <= 0)
|
||||
throw new ArgumentOutOfRangeException("height");
|
||||
|
||||
Width = width;
|
||||
Height = height;
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region Public Members
|
||||
|
||||
#region public int Width
|
||||
|
||||
/// <summary>Gets the width of the texture.</summary>
|
||||
public int Width { get { return width; } private set { width = value; } }
|
||||
|
||||
#endregion
|
||||
|
||||
#region public int Height
|
||||
|
||||
/// <summary>Gets the height of the texture.</summary>
|
||||
public int Height { get { return height; } private set { height = value; } }
|
||||
|
||||
#endregion
|
||||
|
||||
#region MagnificationFilter
|
||||
|
||||
public TextureMagFilter MagnificationFilter
|
||||
{
|
||||
get { return mag_filter; }
|
||||
set { mag_filter = value; }
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region MinificationFilter
|
||||
|
||||
public TextureMinFilter MinificationFilter
|
||||
{
|
||||
get { return min_filter; }
|
||||
set { min_filter = value; }
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region Bind
|
||||
|
||||
public void Bind()
|
||||
{
|
||||
GL.BindTexture(TextureTarget.Texture2D, (this as IGraphicsResource).Id);
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region WriteRegion
|
||||
|
||||
public void WriteRegion(Rectangle source, Rectangle target, int mipLevel, Bitmap bitmap)
|
||||
{
|
||||
if (bitmap == null)
|
||||
throw new ArgumentNullException("data");
|
||||
|
||||
GraphicsUnit unit = GraphicsUnit.Pixel;
|
||||
|
||||
if (!bitmap.GetBounds(ref unit).Contains(source))
|
||||
throw new InvalidOperationException("The source Rectangle is larger than the Bitmap.");
|
||||
|
||||
if (mipLevel < 0)
|
||||
throw new ArgumentOutOfRangeException("mipLevel");
|
||||
|
||||
Bind();
|
||||
|
||||
BitmapData data = null;
|
||||
|
||||
GL.PushClientAttrib(ClientAttribMask.ClientPixelStoreBit);
|
||||
try
|
||||
{
|
||||
data = bitmap.LockBits(source, ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
|
||||
GL.PixelStore(PixelStoreParameter.UnpackAlignment, 1);
|
||||
GL.PixelStore(PixelStoreParameter.UnpackRowLength, bitmap.Width);
|
||||
GL.TexSubImage2D(TextureTarget.Texture2D, mipLevel,
|
||||
target.Left, target.Top,
|
||||
target.Width, target.Height,
|
||||
OpenTK.Graphics.PixelFormat.Rgba,
|
||||
PixelType.UnsignedByte, data.Scan0);
|
||||
}
|
||||
finally
|
||||
{
|
||||
GL.PopClientAttrib();
|
||||
if (data != null)
|
||||
bitmap.UnlockBits(data);
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#region ReadRegion
|
||||
|
||||
public TextureRegion2D ReadRegion(Rectangle rect, int mipLevel)
|
||||
{
|
||||
if (mipLevel < 0)
|
||||
throw new ArgumentOutOfRangeException("miplevel");
|
||||
|
||||
TextureRegion2D<int> region = new TextureRegion2D<int>(rect);
|
||||
|
||||
GL.GetTexImage(TextureTarget.Texture2D, mipLevel, PixelFormat.Bgra, PixelType.UnsignedByte, region.Data);
|
||||
|
||||
return region;
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#endregion
|
||||
|
||||
#region Protected Members
|
||||
|
||||
#region InternalFormat
|
||||
|
||||
protected abstract PixelInternalFormat InternalFormat { get; }
|
||||
|
||||
#endregion
|
||||
|
||||
#endregion
|
||||
|
||||
#region IGraphicsResource Members
|
||||
|
||||
#region IGraphicsResource.Context
|
||||
|
||||
GraphicsContext IGraphicsResource.Context { get { return context; } }
|
||||
|
||||
#endregion
|
||||
|
||||
#region IGraphicsResource.Id
|
||||
|
||||
int IGraphicsResource.Id
|
||||
{
|
||||
get
|
||||
{
|
||||
if (id == 0)
|
||||
{
|
||||
GraphicsContext.Assert();
|
||||
context = GraphicsContext.CurrentContext;
|
||||
|
||||
id = GL.GenTexture();
|
||||
if (id == 0)
|
||||
throw new GraphicsResourceException(String.Format("Texture creation failed, (Error: {0})", GL.GetError()));
|
||||
|
||||
// Ensure the texture is allocated.
|
||||
GL.BindTexture(TextureTarget.Texture2D, id);
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)All.Linear);
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)All.Linear);
|
||||
if (GL.SupportsExtension("Version12"))
|
||||
{
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)All.ClampToEdge);
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)All.ClampToEdge);
|
||||
}
|
||||
else
|
||||
{
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)All.Clamp);
|
||||
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)All.Clamp);
|
||||
}
|
||||
|
||||
GL.TexImage2D(TextureTarget.Texture2D, 0, InternalFormat, Width, Height, 0,
|
||||
OpenTK.Graphics.PixelFormat.Rgba, PixelType.UnsignedByte, IntPtr.Zero);
|
||||
}
|
||||
|
||||
return id;
|
||||
}
|
||||
}
|
||||
|
||||
#endregion
|
||||
|
||||
#endregion
|
||||
|
||||
#region IDisposable Members
|
||||
|
||||
public void Dispose()
|
||||
{
|
||||
Dispose(true);
|
||||
GC.SuppressFinalize(this);
|
||||
}
|
||||
|
||||
void Dispose(bool manual)
|
||||
{
|
||||
if (!disposed)
|
||||
{
|
||||
if (manual)
|
||||
{
|
||||
GL.DeleteTexture(id);
|
||||
}
|
||||
disposed = true;
|
||||
}
|
||||
}
|
||||
|
||||
~Texture2D()
|
||||
{
|
||||
GraphicsContext context = (this as IGraphicsResource).Context;
|
||||
if (context != null)
|
||||
(context as IGraphicsContextInternal).RegisterForDisposal(this);
|
||||
}
|
||||
|
||||
#endregion
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue