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Deleted OpenTK.Utilities project.

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This commit is contained in:
the_fiddler 2009-08-17 10:36:38 +00:00
parent bb49daff4c
commit 6b46659b0e
48 changed files with 36 additions and 5494 deletions
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77
Source/Examples/Properties/Resources.Designer.cs generated
View file

@ -1,7 +1,7 @@
//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
// Runtime Version:2.0.50727.4918
// Runtime Version:2.0.50727.3074
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
@ -164,15 +164,16 @@ namespace Examples.Properties {
///using System.Diagnostics;
///
///using OpenTK;
///using OpenTK.Graphics;
///using OpenTK.Graphics.OpenGL;
///using OpenTK.Input;
///
///namespace Examples.Tutorial
///{
///#if false
/// /// &lt;summary&gt;
/// /// Shows how to render and scroll large amounts of text.
/// /// &lt;/summary&gt;
/// [Example(&quot;Font rendering (advanced)&quot;, [rest of string was truncated]&quot;;.
/// [Example(&quot;Font rende [rest of string was truncated]&quot;;.
/// </summary>
internal static string FontRenderingAdvanced {
get {
@ -181,23 +182,17 @@ namespace Examples.Properties {
}
/// <summary>
/// Looks up a localized string similar to using System;
///using System.Collections.Generic;
///using System.ComponentModel;
///using System.Data;
///using System.Drawing;
///using System.Text;
///using System.Windows.Forms;
///using OpenTK.Graphics;
///
///namespace Examples.WinForms
///{
/// [Example(&quot;Font rendering (basic)&quot;, ExampleCategory.OpenTK, &quot;Fonts&quot;, Difficulty = 1, Documentation = &quot;FontRenderingBasic&quot;)]
/// public partial class FontRenderingBasic : Form
/// {
/// #region Fields
///
/// float[] sizes = new float[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1 [rest of string was truncated]&quot;;.
/// Looks up a localized string similar to #region License
/////
///// The Open Toolkit Library License
/////
///// Copyright (c) 2006 - 2009 the Open Toolkit library.
/////
///// Permission is hereby granted, free of charge, to any person obtaining a copy
///// of this software and associated documentation files (the &quot;Software&quot;), 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 Softwa [rest of string was truncated]&quot;;.
/// </summary>
internal static string FontRenderingBasic {
get {
@ -279,13 +274,13 @@ namespace Examples.Properties {
///using System.Threading;
///
///using OpenTK;
///using OpenTK.Graphics;
///using OpenTK.Graphics.OpenGL;
///using OpenTK.Input;
///
///namespace Examples.Tests
///{
/// [Example(&quot;GameWindow states&quot;, ExampleCategory.OpenTK, &quot;Test&quot;, Documentation=&quot;GameWindowStates&quot;)]
/// public class GameWindowStates : Ga [rest of string was truncated]&quot;;.
/// public class GameWindowStat [rest of string was truncated]&quot;;.
/// </summary>
internal static string GameWindowStates {
get {
@ -312,10 +307,9 @@ namespace Examples.Properties {
///using System.Diagnostics;
///using System.Threading;
///
///using OpenTK.Graphics;
///using OpenTK.Graphics.OpenGL;
///using OpenTK.Platform;
///
///#endr [rest of string was truncated]&quot;;.
/// [rest of string was truncated]&quot;;.
/// </summary>
internal static string GLControlGameLoop {
get {
@ -408,9 +402,8 @@ namespace Examples.Properties {
///
///using OpenTK;
///using OpenTK.Graphics;
///
///namespace Examples.Tutorial
///{ [rest of string was truncated]&quot;;.
///using OpenTK.Graphics.OpenGL;
/// /// [rest of string was truncated]&quot;;.
/// </summary>
internal static string JuliaSetFractal {
get {
@ -459,13 +452,14 @@ namespace Examples.Properties {
///using System.IO;
///
///using OpenTK.Audio;
///using OpenTK.Audio.OpenAL;
///
///namespace Examples
///{
/// [Example(&quot;Playback&quot;, ExampleCategory.OpenAL, &quot;1.1&quot;, Documentation=&quot;Playback&quot;)]
/// public class Playback
/// {
/// static readonly string filename = Path.Comb [rest of string was truncated]&quot;;.
/// static readonly [rest of string was truncated]&quot;;.
/// </summary>
internal static string Playback {
get {
@ -510,13 +504,13 @@ namespace Examples.Properties {
///using System.Windows.Forms;
///
///using OpenTK;
///using OpenTK.Graphics;
///using OpenTK.Graphics.OpenGL;
///
///#endregion
///
///namespace Examples.WinForms
///{
/// [Example(&quot;Simple GLControl&quot;, ExampleCategory.OpenTK, &quot;GLControl&quot;, 1, Document [rest of string was truncated]&quot;;.
/// [Example(&quot;Simple GLControl&quot;, ExampleCategory.OpenTK, &quot;GLControl&quot;, 1, D [rest of string was truncated]&quot;;.
/// </summary>
internal static string SimpleGLControl {
get {
@ -565,7 +559,7 @@ namespace Examples.Properties {
///using System.Diagnostics;
///
///using OpenTK;
///using OpenTK.Graphics;
///using OpenTK.Graphics.OpenGL;
///using OpenTK.Input;
///
///namespace Examples.Tutorial
@ -573,7 +567,7 @@ namespace Examples.Properties {
/// /// &lt;summary&gt;
/// /// Demonstrates the GameWindow class.
/// /// &lt;/summary&gt;
/// [Example(&quot;Simple Window&quot;, ExampleCategory.OpenTK, &quot;GameWindow&quot;, Documentati [rest of string was truncated]&quot;;.
/// [Example(&quot;Simple Window&quot;, ExampleCategory.OpenTK, &quot;GameWindow&quot;, Docu [rest of string was truncated]&quot;;.
/// </summary>
internal static string SimpleWindow {
get {
@ -597,12 +591,13 @@ namespace Examples.Properties {
///using System.ComponentModel;
///
///using OpenTK.Audio;
///using OpenTK.Audio.OpenAL;
///
///namespace Examples.OpenAL
///{
/// // Not working correctly (sound pops).
///
/// //[Example(&quot;Streaming Playback&quot;, ExampleCateg [rest of string was truncated]&quot;;.
/// //[Example(&quot;Strea [rest of string was truncated]&quot;;.
/// </summary>
internal static string StreamingPlayback {
get {
@ -620,19 +615,18 @@ namespace Examples.Properties {
///#endregion
///
///using System;
///using System.Diagnostics;
///
///using OpenTK.Audio;
///using OpenTK.Audio.OpenAL;
///
///using AlContext = System.IntPtr;
///using AlDevice = System.IntPtr;
///using System.Diagnostics;
///
///namespace Examples
///{
/// [Example(&quot;AudioContext Test&quot;, ExampleCategory.OpenTK, &quot;Test&quot;, 0, false)]
/// class TestApp
/// {
/// publ [rest of string was truncated]&quot;;.
/// class [rest of string was truncated]&quot;;.
/// </summary>
internal static string TestAudioContext {
get {
@ -748,13 +742,14 @@ namespace Examples.Properties {
///
///using OpenTK;
///using OpenTK.Graphics;
///using OpenTK.Graphics.OpenGL;
///using OpenTK.Platform;
///
///#endregion
///
///namespace Examples.Tutorial
///{
/// [Example(&quot;Vertex Buffer Objects&quot;, ExampleCategory.OpenGL, &quot;1.5&quot;, false, Documentation=&quot;Vert [rest of string was truncated]&quot;;.
/// [Example(&quot;Vertex Buffer Objects&quot;, ExampleCategory.OpenGL, &quot;1 [rest of string was truncated]&quot;;.
/// </summary>
internal static string VertexBufferObject {
get {
@ -775,7 +770,7 @@ namespace Examples.Properties {
///using System.Drawing;
///
///using OpenTK;
///using OpenTK.Graphics;
///using OpenTK.Graphics.OpenGL;
///using Examples.Shapes;
///
///namespace Examples.Tutorial
@ -783,7 +778,7 @@ namespace Examples.Properties {
/// /// &lt;summary&gt;
/// /// Demonstrates fixed-function OpenGL lighting. Example is incomplete (documentation).
/// /// &lt;/summary&gt;
/// [Example(&quot;Vertex Lighting&quot;, ExampleCategory.OpenG [rest of string was truncated]&quot;;.
/// [Example(&quot;Vertex Lighting&quot;, ExampleCategor [rest of string was truncated]&quot;;.
/// </summary>
internal static string VertexLighting {
get {

235
Source/Utilities/Audio/AudioReader.cs
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@ -1,235 +0,0 @@
#region --- License ---
/* Licensed under the MIT/X11 license.
* Copyright (c) 2006-2008 the OpenTK Team.
* This notice may not be removed from any source distribution.
* See license.txt for licensing details.
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
namespace OpenTK.Audio
{
/// <summary>
/// Encapsulates a sound stream and provides decoding and streaming capabilities.
/// </summary>
public class AudioReader : IDisposable
{
static object reader_lock = new object();
static List<AudioReader> readers = new List<AudioReader>();
bool disposed;
Stream stream;
AudioReader implementation;
#region --- Constructors ---
#region static AudioReader()
static AudioReader()
{
// TODO: Plugin architecture for sound formats. This is overkill now that we only have a WaveReader (future proofing).
readers.Add(new WaveReader());
}
#endregion
#region protected AudioReader()
protected AudioReader() { }
#endregion
#region public AudioReader(string filename)
/// <summary>Creates a new AudioReader that can read the specified sound file.</summary>
/// <param name="filename">The path to the sound file.</param>
/// <returns>A new OpenTK.Audio.AudioReader, which can be used to read from the specified sound file.</returns>
public AudioReader(string filename)
: this(new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{ }
#endregion
#region public AudioReader(Stream s)
/// <summary>Creates a new AudioReader that can read the specified soundstream.</summary>
/// <param name="s">The System.IO.Stream to read from.</param>
/// <returns>A new OpenTK.Audio.AudioReader, which can be used to read from the specified sound stream.</returns>
public AudioReader(Stream s)
{
try
{
lock (reader_lock)
{
foreach (AudioReader reader in readers)
{
long pos = s.Position;
if (reader.Supports(s))
{
s.Position = pos;
implementation = (AudioReader)
reader.GetType().GetConstructor(
System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Public |
System.Reflection.BindingFlags.Instance,
null,
new Type[] { typeof(Stream) },
null)
.Invoke(new object[] { s });
return;
}
s.Position = pos;
}
}
}
catch (Exception)
{
s.Close();
throw;
}
throw new NotSupportedException("Could not find a decoder for the specified sound stream.");
}
#endregion
#endregion
#region --- Public Members ---
#region public virtual bool Supports(Stream s)
/// <summary>When overriden in a derived class, checks if the decoder supports the specified sound stream.</summary>
/// <param name="s">The System.IO.Stream to check.</param>
/// <returns>True if the sound stream is supported; false otherwise.</returns>
public virtual bool Supports(Stream s)
{
if (implementation != null)
return implementation.Supports(s);
throw new NotImplementedException();
}
#endregion
#region public virtual SoundData<SampleType> ReadSamples(long count)
/// <summary>
/// When overriden in a derived class, reads and decodes the specified number of samples from the sound stream.
/// </summary>
/// <param name="count">The number of samples to read and decode.</param>
/// <returns>An OpenTK.Audio.SoundData object that contains the decoded buffer.</returns>
public virtual SoundData ReadSamples(long count)
{
if (implementation != null)
return implementation.ReadSamples(count);
throw new NotImplementedException();
}
#endregion
#region public virtual SoundData<SampleType> ReadToEnd()
/// <summary>
/// When overriden in a derived class, reads and decodes the sound stream.
/// </summary>
/// <returns>An OpenTK.Audio.SoundData object that contains the decoded buffer.</returns>
public virtual SoundData ReadToEnd()
{
if (implementation != null)
return implementation.ReadToEnd();
throw new NotImplementedException();
}
#endregion
#region public virtual int Frequency
/// <summary>
///
/// </summary>
public virtual int Frequency
{
get
{
if (implementation != null)
return implementation.Frequency;
else
throw new NotImplementedException();
}
protected set
{
if (implementation != null)
implementation.Frequency = value;
else
throw new NotImplementedException();
}
}
#endregion
#region public virtual bool EndOfFile
/// <summary>
/// Returns true if the AudioReader has reached the end of the file.
/// </summary>
public virtual bool EndOfFile
{
get
{
if (implementation != null)
return implementation.EndOfFile;
return this.Stream.Position >= this.Stream.Length;
}
}
#endregion
#endregion
#region --- Protected Members ---
/// <summary>
/// Gets or sets the input <see cref="System.IO.Stream"/> of the AudioReader.
/// </summary>
protected virtual Stream Stream
{
get { return stream; }
set { stream = value; }
}
#endregion
#region IDisposable Members
/// <summary>Closes the underlying Stream and disposes of the AudioReader resources.</summary>
public virtual void Dispose()
{
this.Dispose(true);
GC.SuppressFinalize(this);
}
void Dispose(bool manual)
{
if (!disposed)
{
if (manual)
if (this.Stream != null)
this.Stream.Close();
disposed = true;
}
}
/// <summary>
/// Finalizes this AudioReader.
/// </summary>
~AudioReader()
{
this.Dispose(false);
}
#endregion
}
}

24
Source/Utilities/Audio/AudioReaderException.cs
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@ -1,24 +0,0 @@
#region --- License ---
/* Licensed under the MIT/X11 license.
* Copyright (c) 2006-2008 the OpenTK Team.
* This notice may not be removed from any source distribution.
* See license.txt for licensing details.
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK.Audio
{
/// <summary>Represents exceptions related to OpenTK.Audio.AudioReader objects.</summary>
public class AudioReaderException : AudioException
{
/// <summary>Constructs a new AudioReaderException.</summary>
public AudioReaderException() : base() { }
/// <summary>Constructs a new AudioReaderException with the specified error message.</summary>
/// <param name="message">The error message of the AudioReaderException.</param>
public AudioReaderException(string message) : base(message) { }
}
}

87
Source/Utilities/Audio/Sound.cs
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@ -1,87 +0,0 @@
#region --- License ---
/* Licensed under the MIT/X11 license.
* Copyright (c) 2006-2008 the OpenTK Team.
* This notice may not be removed from any source distribution.
* See license.txt for licensing details.
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
namespace OpenTK.Audio
{
#if false
/// <summary>Defines methods to load and hold sound buffer.</summary>
public class Sound<SampleType> : IDisposable
{
bool disposed;
SoundReader<SampleType> reader;
SoundData<SampleType> data;
public Sound(Stream s)
{
if (s == null) throw new ArgumentNullException("s", "Must be a valid System.IO.Stream.");
reader = SoundReader.Create(s);
}
public Sound(string filename)
{
if (String.IsNullOrEmpty(filename)) throw new ArgumentNullException("s", "Must be a valid System.IO.Stream.");
reader = SoundReader.Create(filename);
}
#region --- Public Members ---
public SoundData ReadSamples(int count)
{
if (count <= 0) throw new ArgumentOutOfRangeException("count", "Must be larger than zero.");
throw new NotImplementedException();
}
public SoundData ReadToEnd()
{
return reader.ReadToEnd();
}
public SoundData SoundData { get { return data; } }
public void WriteToBuffer(int buffer, int length)
{
if (buffer == 0) throw new ArgumentOutOfRangeException("buffer", "May not be zero.");
}
#endregion
#region --- IDisposable Members ---
/// <summary>Disposes of the sound buffer.</summary>
public void Dispose()
{
this.Dispose(true);
GC.SuppressFinalize(this);
}
private void Dispose(bool manual)
{
if (!disposed)
{
if (manual)
reader.Dispose();
disposed = true;
}
}
~Sound()
{
this.Dispose(false);
}
#endregion
}
#endif
}

266
Source/Utilities/Audio/WaveReader.cs
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@ -1,266 +0,0 @@
#region --- License ---
/* Licensed under the MIT/X11 license.
* Copyright (c) 2006-2008 the OpenTK Team.
* This notice may not be removed from any source distribution.
* See license.txt for licensing details.
*/
#endregion
using System;
using System.IO;
using OpenTK.Audio;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace OpenTK.Audio
{
internal sealed class WaveReader : AudioReader
{
SoundData decoded_data;
//RIFF header
string signature;
int riff_chunck_size;
string format;
//WAVE header
string format_signature;
int format_chunk_size;
short audio_format;
short channels;
int sample_rate;
int byte_rate;
short block_align;
short bits_per_sample;
//DATA header
string data_signature;
int data_chunk_size;
BinaryReader reader;
internal WaveReader() { }
internal WaveReader(Stream s)
{
if (s == null) throw new ArgumentNullException();
if (!s.CanRead) throw new ArgumentException("Cannot read from specified Stream.");
reader = new BinaryReader(s);
this.Stream = s;
}
#if false
/// <summary>
/// Writes the WaveSound's data to the specified OpenAL buffer in the correct format.
/// </summary>
/// <param name="bid">
/// A <see cref="System.UInt32"/>
/// </param>
public void WriteToBuffer(uint bid)
{
unsafe
{
//fix the array as a byte
fixed (byte* p_Data = _Data)
{
if (Channels == 1)
{
if (BitsPerSample == 16)
{
Console.Write("Uploading 16 bit mono data to OpenAL...");
AL.BufferData(bid, ALFormat.Mono16, (IntPtr)p_Data, _Data.Length, SampleRate);
}
else
{
if (BitsPerSample == 8)
{
Console.Write("Uploading 8 bit mono data to OpenAL...");
AL.BufferData(bid, ALFormat.Mono8, (IntPtr)p_Data, _Data.Length, SampleRate);
}
}
}
else
{
if (Channels == 2)
{
if (BitsPerSample == 16)
{
Console.Write("Uploading 16 bit stereo data to OpenAL...");
AL.BufferData(bid, ALFormat.Stereo16, (IntPtr)p_Data, _Data.Length, SampleRate);
}
else
{
if (BitsPerSample == 8)
{
Console.Write("Uploading 8 bit stereo data to OpenAL...");
AL.BufferData(bid, ALFormat.Stereo8, (IntPtr)p_Data, _Data.Length, SampleRate);
}
}
}
}
}
}
}
/// <summary>
/// Writes all relevent information about the WaveSound to the console window.
/// </summary>
public void DumpParamsToConsole()
{
Console.WriteLine("AudioFormat:" + AudioFormat);
Console.WriteLine("Channels:" + Channels);
Console.WriteLine("SampleRate:" + SampleRate);
Console.WriteLine("ByteRate:" + ByteRate);
Console.WriteLine("BlockAlign:" + BlockAlign);
Console.WriteLine("BitsPerSample:" + BitsPerSample);
}
/// <value>
/// Returns the WaveSound's raw sound data as an array of bytes.
/// </value>
public byte[] Data
{
get
{
return _Data;
}
}
#endif
#region --- Public Members ---
#region public override bool Supports(Stream s)
/// <summary>
/// Checks whether the specified stream contains valid WAVE/RIFF buffer.
/// </summary>
/// <param name="s">The System.IO.Stream to check.</param>
/// <returns>True if the stream is a valid WAVE/RIFF file; false otherwise.</returns>
public override bool Supports(Stream s)
{
BinaryReader reader = new BinaryReader(s);
return this.ReadHeaders(reader);
}
#endregion
#region public override SoundData ReadSamples(int samples)
/// <summary>
/// Reads and decodes the specified number of samples from the sound stream.
/// </summary>
/// <param name="samples">The number of samples to read and decode.</param>
/// <returns>An OpenTK.Audio.SoundData object that contains the decoded buffer.</returns>
public override SoundData ReadSamples(long samples)
{
if (samples > reader.BaseStream.Length - reader.BaseStream.Position)
samples = reader.BaseStream.Length - reader.BaseStream.Position;
//while (samples > decoded_data.Data.Length * (bits_per_sample / 8))
// Array.Resize<byte>(ref decoded_data.Data, decoded_data.Data.Length * 2);
decoded_data = new SoundData(new SoundFormat(channels, bits_per_sample, sample_rate),
reader.ReadBytes((int)samples));
return decoded_data;
}
#endregion
#region public override SoundData ReadToEnd()
/// <summary>
/// Reads and decodes the sound stream.
/// </summary>
/// <returns>An OpenTK.Audio.SoundData object that contains the decoded buffer.</returns>
public override SoundData ReadToEnd()
{
try
{
//read the buffer into a byte array, even if the format is 16 bit
//decoded_data = new byte[data_chunk_size];
decoded_data = new SoundData(new SoundFormat(channels, bits_per_sample, sample_rate),
reader.ReadBytes((int)reader.BaseStream.Length));
Debug.WriteLine("decoded!");
//return new SoundData(decoded_data, new SoundFormat(channels, bits_per_sample, sample_rate));
return decoded_data;
}
catch (AudioReaderException)
{
reader.Close();
throw;
}
}
#endregion
#endregion
#region --- Protected Members ---
protected override Stream Stream
{
get { return base.Stream; }
set
{
base.Stream = value;
if (!ReadHeaders(reader))
throw new AudioReaderException("Invalid WAVE/RIFF file: invalid or corrupt signature.");
Debug.Write(String.Format("Opened WAVE/RIFF file: ({0}, {1}, {2}, {3}) ", sample_rate.ToString(), bits_per_sample.ToString(),
channels.ToString(), audio_format.ToString()));
}
}
#endregion
#region --- Private Members ---
// Tries to read the WAVE/RIFF headers, and returns true if they are valid.
bool ReadHeaders(BinaryReader reader)
{
// Don't explicitly call reader.Close()/.Dispose(), as that will close the inner stream.
// There's no such danger if the BinaryReader isn't explicitly destroyed.
// RIFF header
signature = new string(reader.ReadChars(4));
if (signature != "RIFF")
return false;
riff_chunck_size = reader.ReadInt32();
format = new string(reader.ReadChars(4));
if (format != "WAVE")
return false;
// WAVE header
format_signature = new string(reader.ReadChars(4));
if (format_signature != "fmt ")
return false;
format_chunk_size = reader.ReadInt32();
audio_format = reader.ReadInt16();
channels = reader.ReadInt16();
sample_rate = reader.ReadInt32();
byte_rate = reader.ReadInt32();
block_align = reader.ReadInt16();
bits_per_sample = reader.ReadInt16();
data_signature = new string(reader.ReadChars(4));
if (data_signature != "data")
return false;
data_chunk_size = reader.ReadInt32();
return true;
}
#endregion
}
}

37
Source/Utilities/Fonts/DisplayListTextHandle.cs
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@ -1,37 +0,0 @@
#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using OpenTK.Graphics.OpenGL;
namespace OpenTK.Graphics
{
[Obsolete()]
class DisplayListTextHandle : TextHandle
{
public DisplayListTextHandle(int handle) : base(handle) { }
public override string ToString()
{
return String.Format("TextHandle (display list): {0}", Handle);
}
protected override void Dispose(bool manual)
{
if (!disposed)
{
if (manual)
{
GL.DeleteLists(Handle, 1);
}
disposed = true;
}
}
}
}

57
Source/Utilities/Fonts/DisplayListTextPrinter.cs
View file

@ -1,57 +0,0 @@
#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using OpenTK.Graphics.OpenGL;
namespace OpenTK.Graphics
{
/// <summary>
/// Provides text printing through OpenGL 1.1 Display Lists.
/// </summary>
[Obsolete()]
class DisplayListTextPrinter : ITextPrinterImplementation
{
#region IPrinter Members
public TextHandle Load(Vector2[] vertices, ushort[] indices, int index_count)
{
DisplayListTextHandle handle = new DisplayListTextHandle(GL.GenLists(1));
GL.NewList(handle.Handle, ListMode.Compile);
this.Draw(vertices, indices, index_count);
GL.EndList();
return handle;
}
public void Draw(TextHandle handle)
{
GL.CallList(handle.Handle);
}
public void Draw(Vector2[] vertices, ushort[] indices, int index_count)
{
GL.Begin(BeginMode.Triangles);
for (int i = 0; i < index_count; i++)
//foreach (ushort index in indices)
{
GL.TexCoord2(vertices[indices[i] + 1]);
GL.Vertex2(vertices[indices[i]]);
}
GL.End();
}
#endregion
}
}

176
Source/Utilities/Fonts/Glyph.cs
View file

@ -1,176 +0,0 @@
#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
namespace OpenTK.Graphics
{
using Graphics = System.Drawing.Graphics;
/// <summary>
/// Represents a single character of a specific Font.
/// </summary>
[Obsolete]
struct Glyph : IPackable<Glyph>
{
char character;
Font font;
SizeF size;
#region --- Constructors ---
// Constructs a new Glyph that represents the given character and Font.
public Glyph(char c, Font f, SizeF s)
{
if (f == null)
throw new ArgumentNullException("f", "You must specify a valid font");
character = c;
font = f;
size = s;
}
#endregion
#region --- Public Methods ---
#region public char Character
/// <summary>
/// Gets the character represented by this Glyph.
/// </summary>
public char Character
{
get { return character; }
private set { character = value; }
}
#endregion
#region public Font Font
/// <summary>
/// Gets the Font of this Glyph.
/// </summary>
public Font Font
{
get { return font; }
private set
{
if (value == null)
throw new ArgumentNullException("Font", "Glyph font cannot be null");
font = value;
}
}
#endregion
#region public override bool Equals(object obj)
/// <summary>
/// Checks whether the given object is equal (memberwise) to the current Glyph.
/// </summary>
/// <param name="obj">The obj to check.</param>
/// <returns>True, if the object is identical to the current Glyph.</returns>
public override bool Equals(object obj)
{
if (obj is Glyph)
return this.Equals((Glyph)obj);
return base.Equals(obj);
}
#endregion
#region public override string ToString()
/// <summary>
/// Describes this Glyph object.
/// </summary>
/// <returns>Returns a System.String describing this Glyph.</returns>
public override string ToString()
{
return String.Format("'{0}', {1} {2}, {3} {4}, ({5}, {6})", Character, Font.Name, font.Style, font.Size, font.Unit, Width, Height);
}
#endregion
#region public override int GetHashCode()
/// <summary>
/// Calculates the hashcode for this Glyph.
/// </summary>
/// <returns>A System.Int32 containing a hashcode that uniquely identifies this Glyph.</returns>
public override int GetHashCode()
{
return character.GetHashCode() ^ font.GetHashCode() ^ size.GetHashCode();
}
#endregion
#region public SizeF Size
/// <summary>
/// Gets the size of this Glyph.
/// </summary>
public SizeF Size { get { return size; } }
#endregion
#region public RectangleF Rectangle
/// <summary>
/// Gets the bounding box of this Glyph.
/// </summary>
public RectangleF Rectangle { get { return new RectangleF(PointF.Empty, Size); } }
#endregion
#endregion
#region --- IPackable<T> Members ---
/// <summary>
/// Gets an integer representing the width of the Glyph in pixels.
/// </summary>
public int Width
{
get
{
return (int)System.Math.Ceiling(size.Width);
}
}
/// <summary>
/// Gets an integer representing the height of the Glyph in pixels.
/// </summary>
public int Height
{
get
{
return (int)System.Math.Ceiling(size.Height);
}
}
#endregion
#region --- IEquatable<Glyph> Members ---
/// <summary>
/// Compares the current Glyph with the given Glyph.
/// </summary>
/// <param name="other">The Glyph to compare to.</param>
/// <returns>True if both Glyphs represent the same character of the same Font, false otherwise.</returns>
public bool Equals(Glyph other)
{
return Character == other.Character && Font == other.Font && Size == other.Size;
}
#endregion
}
}

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#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK.Graphics
{
[Obsolete]
public interface IFont : IDisposable
{
void LoadGlyphs(string glyphs);
float Height { get; }
void MeasureString(string str, out float width, out float height);
}
}

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#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK.Graphics
{
/// <summary>
/// Defines the interface for TextPrinter implementations.
/// </summary>
[Obsolete("Use ITextOutputProvider instead")]
public interface ITextPrinterImplementation
{
/// <summary>
/// Caches a text fragment for future use.
/// </summary>
/// <param name="vertices">The vertex array for the text fragment.</param>
/// <param name="indices">The index array for the text fragment. Please use the indexCount parameter
/// instead of indices.Count, as the indices array may be larger than necessary for performance reasons.</param>
/// <param name="indexCount">The actual number of indices in the text fragment.</param>
/// <returns>A TextHandle that can be used to draw the text fragment.</returns>
TextHandle Load(Vector2[] vertices, ushort[] indices, int indexCount);
/// <summary>
/// Draws the specified cached text fragment.
/// </summary>
/// <param name="handle">The TextHandle corresponding to the desired text fragment.</param>
void Draw(TextHandle handle);
/// <summary>
/// Draws a text fragment, without caching.
/// </summary>
/// <param name="vertices">The vertex array for the text fragment.</param>
/// <param name="indices">The index array for the text fragment. Please use the indexCount parameter
/// instead of indices.Count, as the indices array may be larger than necessary for performance reasons.</param>
/// <param name="indexCount">The actual number of indices in the text fragment.</param>
void Draw(Vector2[] vertices, ushort[] indices, int indexCount);
}
}

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#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK.Graphics
{
/// <summary>
/// Represents a handle to cached text.
/// </summary>
[Obsolete("Use TextPrinter.Print instead")]
public class TextHandle : IDisposable
{
internal string Text;
internal System.Drawing.Font GdiPFont;
/// <summary>
/// Constructs a new TextHandle,
/// </summary>
/// <param name="handle"></param>
internal TextHandle(int handle)
{
Handle = handle;
}
internal TextHandle(string text, System.Drawing.Font font)
{
Text = text;
GdiPFont = font;
}
private int handle;
protected TextureFont font;
protected bool disposed;
/// <summary>
/// Gets the handle of the cached text run. Call the OpenTK.Graphics.ITextPrinter.Draw() method
/// to draw the text represented by this TextHandle.
/// </summary>
public int Handle
{
get { return handle; }
protected set { handle = value; }
}
/// <summary>
/// Gets the TextureFont used for this text run.
/// </summary>
public TextureFont Font
{
get { return font; }
internal set { font = value; }
}
#region public override string ToString()
/// <summary>
/// Returns a System.String that represents the current TextHandle.
/// </summary>
/// <returns>a System.String that descibes the current TextHandle.</returns>
public override string ToString()
{
return String.Format("TextHandle: {0}", Handle);
}
#endregion
#region --- IDisposable Members ---
/// <summary>
/// Frees the resource consumed by the TextHandle.
/// </summary>
public void Dispose()
{
this.Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool manual) { }
~TextHandle() { this.Dispose(false); }
#endregion
}
}

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Source/Utilities/Fonts/TextureFont.cs
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#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing.Text;
using System.Drawing;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
using System.Diagnostics;
using OpenTK.Graphics.OpenGL;
using OpenTK.Platform;
namespace OpenTK.Graphics
{
using Graphics = System.Drawing.Graphics;
using PixelFormat = OpenTK.Graphics.OpenGL.PixelFormat;
using System.Text.RegularExpressions;
[Obsolete("Use System.Drawing.Font instead")]
public class TextureFont : IFont
{
internal Font font;
Dictionary<char, RectangleF> loaded_glyphs = new Dictionary<char, RectangleF>(64);
Bitmap bmp;
Graphics gfx;
// TODO: We need to be able to use multiple font sheets.
static int texture;
static TexturePacker<Glyph> pack;
static int texture_width, texture_height;
static readonly StringFormat default_string_format = StringFormat.GenericTypographic; // Check the constructor, too, for additional flags.
static readonly StringFormat load_glyph_string_format = StringFormat.GenericDefault;
static SizeF maximum_graphics_size;
int[] data = new int[256]; // Used to upload the glyph buffer to the OpenGL texture.
object upload_lock = new object();
static readonly char[] newline_characters = new char[] { '\n', '\r' };
#region --- Constructor ---
/// <summary>
/// Constructs a new TextureFont, using the specified System.Drawing.Font.
/// </summary>
/// <param name="font">The System.Drawing.Font to use.</param>
public TextureFont(Font font)
{
if (font == null)
throw new ArgumentNullException("font", "Argument to TextureFont constructor cannot be null.");
this.font = font;
bmp = new Bitmap(font.Height * 2, font.Height * 2);
gfx = Graphics.FromImage(bmp);
maximum_graphics_size = gfx.ClipBounds.Size;
// Adjust font rendering mode. Small sizes look blurry without gridfitting, so turn
// that on. Increasing contrast also seems to help.
if (font.Size <= 18.0f)
{
gfx.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
//gfx.TextContrast = 11;
}
else
{
gfx.TextRenderingHint = TextRenderingHint.AntiAlias;
//gfx.TextContrast = 0;
}
default_string_format.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces;
}
/// <summary>
/// Constructs a new TextureFont, using the specified parameters.
/// </summary>
/// <param name="family">The System.Drawing.FontFamily to use for the typeface.</param>
/// <param name="emSize">The em size to use for the typeface.</param>
public TextureFont(FontFamily family, float emSize)
: this(new Font(family, emSize))
{ }
/// <summary>
/// Constructs a new TextureFont, using the specified parameters.
/// </summary>
/// <param name="family">The System.Drawing.FontFamily to use for the typeface.</param>
/// <param name="emSize">The em size to use for the typeface.</param>
/// <param name="style">The style to use for the typeface.</param>
public TextureFont(FontFamily family, float emSize, FontStyle style)
: this(new Font(family, emSize, style))
{ }
#endregion
#region --- Public Methods ---
#region public void LoadGlyphs(string glyphs)
/// <summary>
/// Prepares the specified glyphs for rendering.
/// </summary>
/// <param name="glyphs">The glyphs to prepare for rendering.</param>
public void LoadGlyphs(string glyphs)
{
RectangleF rect = new RectangleF();
foreach (char c in glyphs)
{
if (Char.IsWhiteSpace(c))
continue;
try
{
if (!loaded_glyphs.ContainsKey(c))
LoadGlyph(c, out rect);
}
catch (Exception e)
{
Debug.Print(e.ToString());
throw;
}
}
}
#endregion
#region public void LoadGlyph(char glyph)
/// <summary>
/// Prepares the specified glyph for rendering.
/// </summary>
/// <param name="glyph">The glyph to prepare for rendering.</param>
public void LoadGlyph(char glyph)
{
RectangleF rect = new RectangleF();
if (!loaded_glyphs.ContainsKey(glyph))
LoadGlyph(glyph, out rect);
}
#endregion
#region public bool GlyphData(char glyph, out float width, out float height, out RectangleF textureRectangle, out int texture)
/// <summary>
/// Returns the characteristics of a loaded glyph.
/// </summary>
/// <param name="glyph">The character corresponding to this glyph.</param>
/// <param name="width">The width of this glyph.</param>
/// <param name="height">The height of this glyph (line spacing).</param>
/// <param name="textureRectangle">The bounding box of the texture buffer of this glyph.</param>
/// <param name="texture">The handle to the texture that contains this glyph.</param>
/// <returns>True if the glyph has been loaded, false otherwise.</returns>
/// <seealso cref="LoadGlyphs"/>
public bool GlyphData(char glyph, out float width, out float height, out RectangleF textureRectangle, out int texture)
{
if (loaded_glyphs.TryGetValue(glyph, out textureRectangle))
{
width = textureRectangle.Width * texture_width;
height = textureRectangle.Height * texture_height;
texture = TextureFont.texture;
return true;
}
width = height = texture = 0;
return false;
}
#endregion
#region public float Height
/// <summary>
/// Gets a float indicating the default line spacing of this font.
/// </summary>
public float Height
{
get { return font.Height; }
}
#endregion
#region public float Width
/// <summary>
/// Gets a float indicating the default size of this font, in points.
/// </summary>
public float Width
{
get { return font.SizeInPoints; }
}
#endregion
#region public void MeasureString(string str, out float width, out float height, bool accountForOverhangs)
/// <summary>
/// Measures the width of the specified string.
/// </summary>
/// <param name="str">The string to measure.</param>
/// <param name="width">The measured width.</param>
/// <param name="height">The measured height.</param>
/// <param name="accountForOverhangs">If true, adds space to account for glyph overhangs. Set to true if you wish to measure a complete string. Set to false if you wish to perform layout on adjacent strings.</param>
[Obsolete("Returns invalid results - use MeasureText() instead")]
public void MeasureString(string str, out float width, out float height, bool accountForOverhangs)
{
System.Drawing.StringFormat format = accountForOverhangs ? System.Drawing.StringFormat.GenericDefault : System.Drawing.StringFormat.GenericTypographic;
System.Drawing.SizeF size = gfx.MeasureString(str, font, 16384, format);
height = size.Height;
width = size.Width;
}
#endregion
#region public void MeasureString(string str, out float width, out float height)
/// <summary>
/// Measures the width of the specified string.
/// </summary>
/// <param name="str">The string to measure.</param>
/// <param name="width">The measured width.</param>
/// <param name="height">The measured height.</param>
/// <seealso cref="MeasureString(string, out float, out float, bool)"/>
[Obsolete("Returns invalid results - use MeasureText() instead")]
public void MeasureString(string str, out float width, out float height)
{
MeasureString(str, out width, out height, true);
}
#endregion
#region public RectangleF MeasureText(string text)
/// <summary>
/// Calculates size information for the specified text.
/// </summary>
/// <param name="text">The string to measure.</param>
/// <returns>A RectangleF containing the bounding box for the specified text.</returns>
public RectangleF MeasureText(string text)
{
return MeasureText(text, SizeF.Empty, default_string_format, null);
}
#endregion
#region public RectangleF MeasureText(string text, SizeF bounds)
/// <summary>
/// Calculates size information for the specified text.
/// </summary>
/// <param name="text">The string to measure.</param>
/// <param name="bounds">A SizeF structure containing the maximum desired width and height of the text. Default is SizeF.Empty.</param>
/// <returns>A RectangleF containing the bounding box for the specified text.</returns>
public RectangleF MeasureText(string text, SizeF bounds)
{
return MeasureText(text, bounds, default_string_format, null);
}
#endregion
#region public RectangleF MeasureText(string text, SizeF bounds, StringFormat format)
/// <summary>
/// Calculates size information for the specified text.
/// </summary>
/// <param name="text">The string to measure.</param>
/// <param name="bounds">A SizeF structure containing the maximum desired width and height of the text. Pass SizeF.Empty to disable wrapping calculations. A width or height of 0 disables the relevant calculation.</param>
/// <param name="format">A StringFormat object which specifies the measurement format of the string. Pass null to use the default StringFormat (StringFormat.GenericTypographic).</param>
/// <returns>A RectangleF containing the bounding box for the specified text.</returns>
public RectangleF MeasureText(string text, SizeF bounds, StringFormat format)
{
return MeasureText(text, bounds, format, null);
}
#endregion
#region public RectangleF MeasureText(string text, SizeF bounds, StringFormat format, IList<RectangleF> ranges)
IntPtr[] regions = new IntPtr[GdiPlus.MaxMeasurableCharacterRanges];
CharacterRange[] characterRanges = new CharacterRange[GdiPlus.MaxMeasurableCharacterRanges];
/// <summary>
/// Calculates size information for the specified text.
/// </summary>
/// <param name="text">The string to measure.</param>
/// <param name="bounds">A SizeF structure containing the maximum desired width and height of the text. Pass SizeF.Empty to disable wrapping calculations. A width or height of 0 disables the relevant calculation.</param>
/// <param name="format">A StringFormat object which specifies the measurement format of the string. Pass null to use the default StringFormat (StringFormat.GenericDefault).</param>
/// <param name="ranges">Fills the specified IList of RectangleF structures with position information for individual characters. If this argument is null, these calculations are skipped.</param>
/// <returns>A RectangleF containing the bounding box for the specified text.</returns>
public RectangleF MeasureText(string text, SizeF bounds, StringFormat format, List<RectangleF> ranges)
{
if (String.IsNullOrEmpty(text))
return RectangleF.Empty;
if (bounds == SizeF.Empty)
bounds = maximum_graphics_size;
if (format == null)
format = default_string_format;
// TODO: What should we do in this case?
if (ranges == null)
ranges = new List<RectangleF>();
ranges.Clear();
PointF origin = PointF.Empty;
SizeF size = SizeF.Empty;
IntPtr native_graphics = GdiPlus.GetNativeGraphics(gfx);
IntPtr native_font = GdiPlus.GetNativeFont(font);
IntPtr native_string_format = GdiPlus.GetNativeStringFormat(format);
RectangleF layoutRect = new RectangleF(PointF.Empty, bounds);
int height = 0;
// It seems that the mere presence of \n and \r characters
// is enough for Mono to botch the layout (even if these
// characters are not processed.) We'll need to find a
// different way to perform layout on Mono, probably
// through Pango.
// Todo: This workaround allocates memory.
//if (Configuration.RunningOnMono)
{
string[] lines = text.Replace("\r", String.Empty).Split(newline_characters);
foreach (string s in lines)
{
ranges.AddRange(GetCharExtents(
s, height, 0, s.Length, layoutRect,
native_graphics, native_font, native_string_format));
height += font.Height;
}
}
return new RectangleF(ranges[0].X, ranges[0].Y, ranges[ranges.Count - 1].Right, ranges[ranges.Count - 1].Bottom);
}
#endregion
#endregion
#region --- Private Methods ---
#region private void PrepareTexturePacker()
/// <summary>
/// Calculates the optimal size for the font texture and TexturePacker, and creates both.
/// </summary>
private void PrepareTexturePacker()
{
// Calculate the size of the texture packer. We want a power-of-two size
// that is less than 1024 (supported in Geforce256-era cards), but large
// enough to hold at least 256 (16*16) font glyphs.
// TODO: Find the actual card limits, maybe?
int size = (int)(font.Size * 16);
size = (int)System.Math.Pow(2.0, System.Math.Ceiling(System.Math.Log((double)size, 2.0)));
if (size > 1024)
size = 1024;
texture_width = size;
texture_height = size;
pack = new TexturePacker<Glyph>(texture_width, texture_height);
GL.GenTextures(1, out texture);
GL.BindTexture(TextureTarget.Texture2D, texture);
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, texture_width, texture_height, 0,
OpenTK.Graphics.OpenGL.PixelFormat.Rgba, PixelType.UnsignedByte, IntPtr.Zero);
}
#endregion
#region private void LoadGlyph(char c, out RectangleF rectangle)
// Adds the specified caharacter to the texture packer.
private void LoadGlyph(char c, out RectangleF rectangle)
{
if (pack == null)
PrepareTexturePacker();
RectangleF glyph_rect = MeasureText(c.ToString(), SizeF.Empty, load_glyph_string_format);
SizeF glyph_size = new SizeF(glyph_rect.Right, glyph_rect.Bottom); // We need to do this, since the origin might not be (0, 0)
Glyph g = new Glyph(c, font, glyph_size);
Rectangle rect;
try
{
pack.Add(g, out rect);
}
catch (InvalidOperationException expt)
{
// TODO: The TexturePacker is full, create a new font sheet.
Trace.WriteLine(expt);
throw;
}
GL.BindTexture(TextureTarget.Texture2D, texture);
gfx.Clear(System.Drawing.Color.Transparent);
gfx.DrawString(g.Character.ToString(), g.Font, System.Drawing.Brushes.White, 0.0f, 0.0f, default_string_format);
BitmapData bitmap_data = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly,
System.Drawing.Imaging.PixelFormat.Format32bppArgb);
GL.PushClientAttrib(ClientAttribMask.ClientPixelStoreBit);
try
{
GL.PixelStore(PixelStoreParameter.UnpackAlignment, 1.0f);
GL.PixelStore(PixelStoreParameter.UnpackRowLength, bmp.Width);
GL.TexSubImage2D(TextureTarget.Texture2D, 0, (int)rect.Left, (int)rect.Top,
rect.Width, rect.Height,
OpenTK.Graphics.OpenGL.PixelFormat.Rgba,
PixelType.UnsignedByte, bitmap_data.Scan0);
}
finally
{
GL.PopClientAttrib();
}
bmp.UnlockBits(bitmap_data);
rectangle = RectangleF.FromLTRB(
rect.Left / (float)texture_width,
rect.Top / (float)texture_height,
rect.Right / (float)texture_width,
rect.Bottom / (float)texture_height);
loaded_glyphs.Add(g.Character, rectangle);
}
#endregion
#region GetCharExtents
// Gets the bounds of each character in a line of text.
// The line is processed in blocks of 32 characters (GdiPlus.MaxMeasurableCharacterRanges).
IEnumerable<RectangleF> GetCharExtents(string text, int height, int line_start, int line_length,
RectangleF layoutRect, IntPtr native_graphics, IntPtr native_font, IntPtr native_string_format)
{
RectangleF rect = new RectangleF();
int line_end = line_start + line_length;
while (line_start < line_end)
{
//if (text[line_start] == '\n' || text[line_start] == '\r')
//{
// line_start++;
// continue;
//}
int num_characters = (line_end - line_start) > GdiPlus.MaxMeasurableCharacterRanges ?
GdiPlus.MaxMeasurableCharacterRanges :
line_end - line_start;
int status = 0;
for (int i = 0; i < num_characters; i++)
{
characterRanges[i] = new CharacterRange(line_start + i, 1);
IntPtr region;
status = GdiPlus.CreateRegion(out region);
regions[i] = region;
Debug.Assert(status == 0, String.Format("GDI+ error: {0}", status));
}
status = GdiPlus.SetStringFormatMeasurableCharacterRanges(native_string_format, num_characters, characterRanges);
Debug.Assert(status == 0, String.Format("GDI+ error: {0}", status));
status = GdiPlus.MeasureCharacterRanges(native_graphics, text, text.Length,
native_font, ref layoutRect, native_string_format, num_characters, regions);
Debug.Assert(status == 0, String.Format("GDI+ error: {0}", status));
for (int i = 0; i < num_characters; i++)
{
GdiPlus.GetRegionBounds(regions[i], native_graphics, ref rect);
Debug.Assert(status == 0, String.Format("GDI+ error: {0}", status));
GdiPlus.DeleteRegion(regions[i]);
Debug.Assert(status == 0, String.Format("GDI+ error: {0}", status));
rect.Y += height;
yield return rect;
}
line_start += num_characters;
}
}
#endregion
#endregion
#region --- Internal Methods ---
#region internal int Texture
/// <summary>
/// Gets the handle to the texture were this font resides.
/// </summary>
internal int Texture
{
get { return TextureFont.texture; }
}
#endregion
#endregion
#region --- IDisposable Members ---
bool disposed;
/// <summary>
/// Releases all resources used by this OpenTK.Graphics.TextureFont.
/// </summary>
public void Dispose()
{
GC.SuppressFinalize(this);
Dispose(true);
}
private void Dispose(bool manual)
{
if (!disposed)
{
pack = null;
if (manual)
{
GL.DeleteTextures(1, ref texture);
font.Dispose();
gfx.Dispose();
}
disposed = true;
}
}
/// <summary>
/// Finalizes this TextureFont.
/// </summary>
~TextureFont()
{
Dispose(false);
}
#endregion
}
}

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#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using OpenTK.Graphics.OpenGL;
namespace OpenTK.Graphics
{
/// <summary>
/// Provides text printing through OpenGL 1.5 vertex buffer objects.
/// </summary>
[Obsolete]
class VboTextPrinter : ITextPrinterImplementation
{
static int allocated_handles;
static int vector2_size = Marshal.SizeOf(new Vector2());
#region --- IPrinter Members ---
public TextHandle Load(Vector2[] vertices, ushort[] indices, int index_count)
{
VboTextHandle handle = new VboTextHandle(++allocated_handles);
GL.GenBuffers(1, out handle.vbo_id);
GL.BindBuffer(BufferTarget.ArrayBuffer, handle.vbo_id);
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(vertices.Length * vector2_size), vertices,
BufferUsageHint.StaticDraw);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
GL.GenBuffers(1, out handle.ebo_id);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, handle.ebo_id);
GL.BufferData(BufferTarget.ElementArrayBuffer, (IntPtr)(indices.Length * sizeof(ushort)), indices,
BufferUsageHint.StaticDraw);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, 0);
handle.element_count = indices.Length;
return handle;
}
public void Draw(TextHandle handle)
{
VboTextHandle vbo = (VboTextHandle)handle;
//GL.PushClientAttrib(ClientAttribMask.ClientVertexArrayBit);
//GL.EnableClientState(EnableCap.TextureCoordArray);
GL.EnableClientState(EnableCap.VertexArray);
GL.BindBuffer(BufferTarget.ArrayBuffer, vbo.vbo_id);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, vbo.ebo_id);
GL.TexCoordPointer(2, TexCoordPointerType.Float, vector2_size, (IntPtr)vector2_size);
GL.VertexPointer(2, VertexPointerType.Float, vector2_size, IntPtr.Zero);
GL.DrawElements(BeginMode.Triangles, vbo.element_count, DrawElementsType.UnsignedShort, IntPtr.Zero);
//GL.DrawArrays(BeginMode.LineLoop, 0, vbo.element_count);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, 0);
GL.DisableClientState(EnableCap.VertexArray);
//GL.DisableClientState(EnableCap.TextureCoordArray);
//GL.PopClientAttrib();
}
public void Draw(Vector2[] vertices, ushort[] indices, int index_count)
{
throw new NotImplementedException();
}
#endregion
}
#region class VboTextHandle : TextHandle
/// <summary>
/// Contains the necessary information to print text through the VboTextPrinter implementation.
/// </summary>
[Obsolete]
class VboTextHandle : TextHandle
{
public VboTextHandle(int handle) : base(handle) { }
internal int vbo_id; // vertex buffer object id.
internal int ebo_id; // index buffer object id.
internal int element_count; // Number of elements in the ebo.
public override string ToString()
{
return String.Format("TextHandle (vbo): {0} ({1} element(s), vbo id: {2}, ebo id: {3}",
Handle, element_count / 6, vbo_id, ebo_id);
}
}
#endregion
}

62
Source/Utilities/Graphics/AlphaTexture2D.cs
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#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;
using OpenTK.Graphics.OpenGL;
namespace OpenTK.Graphics
{
/// <summary>
/// Encapsulates an OpenGL texture.
/// </summary>
class AlphaTexture2D : Texture2D
{
#region Constructors
/// <summary>
/// Constructs a new Texture.
/// </summary>
public AlphaTexture2D(int width, int height)
: base(width, height)
{ }
#endregion
#region Protected Members
protected override PixelInternalFormat InternalFormat
{
get { return PixelInternalFormat.Alpha; }
}
#endregion
}
}

44
Source/Utilities/Graphics/GraphicsResourceException.cs
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@ -1,44 +0,0 @@
#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;
namespace OpenTK.Graphics
{
/// <summary>
/// Represents exceptions related to IGraphicsResources.
/// </summary>
public class GraphicsResourceException : Exception
{
/// <summary>Constructs a new GraphicsResourceException.</summary>
public GraphicsResourceException() : base() { }
/// <summary>Constructs a new string with the specified error message.</summary>
public GraphicsResourceException(string message) : base(message) { }
}
}

49
Source/Utilities/Graphics/IGraphicsResource.cs
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@ -1,49 +0,0 @@
#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;
namespace OpenTK.Graphics
{
/// <summary>
/// Defines a common interface to all OpenGL resources.
/// </summary>
interface IGraphicsResource : IDisposable
{
/// <summary>
/// Gets the GraphicsContext that owns this resource.
/// </summary>
IGraphicsContext Context { get; }
/// <summary>
/// Gets the Id of this IGraphicsResource.
/// </summary>
int Id { get; }
}
}

159
Source/Utilities/Graphics/ITextPrinter.cs
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@ -1,159 +0,0 @@
#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using OpenTK.Graphics.Text;
namespace OpenTK.Graphics
{
/// <summary>
/// Defines the interface for a TextPrinter.
/// </summary>
public interface ITextPrinter : IDisposable
{
#region Print
/// <summary>
/// Prints text using the specified color and layout options.
/// </summary>
/// <param name="text">The System.String to print.</param>
/// <param name="font">The System.Drawing.Font that will be used to print text.</param>
/// <param name="color">The System.Drawing.Color that will be used to print text.</param>
void Print(string text, Font font, Color color);
/// <summary>
/// Prints text using the specified color and layout options.
/// </summary>
/// <param name="text">The System.String to print.</param>
/// <param name="font">The System.Drawing.Font that will be used to print text.</param>
/// <param name="color">The System.Drawing.Color that will be used to print text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
void Print(string text, Font font, Color color, RectangleF rect);
/// <summary>
/// Prints text using the specified color and layout options.
/// </summary>
/// <param name="text">The System.String to print.</param>
/// <param name="font">The System.Drawing.Font that will be used to print text.</param>
/// <param name="color">The System.Drawing.Color that will be used to print text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to print text.</param>
void Print(string text, Font font, Color color, RectangleF rect, TextPrinterOptions options);
/// <summary>
/// Prints text using the specified color and layout options.
/// </summary>
/// <param name="text">The System.String to print.</param>
/// <param name="font">The System.Drawing.Font that will be used to print text.</param>
/// <param name="color">The System.Drawing.Color that will be used to print text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to print text.</param>
/// <param name="alignment">The OpenTK.Graphics.TextAlignment that will be used to print text.</param>
void Print(string text, Font font, Color color, RectangleF rect, TextPrinterOptions options, TextAlignment alignment);
/// <summary>
/// Prints text using the specified color and layout options.
/// </summary>
/// <param name="text">The System.String to print.</param>
/// <param name="font">The System.Drawing.Font that will be used to print text.</param>
/// <param name="color">The System.Drawing.Color that will be used to print text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to print text.</param>
/// <param name="alignment">The OpenTK.Graphics.TextAlignment that will be used to print text.</param>
/// <param name="direction">The OpenTK.Graphics.TextDirection that will be used to print text.</param>
void Print(string text, Font font, Color color, RectangleF rect, TextPrinterOptions options, TextAlignment alignment, TextDirection direction);
#endregion
#region Measure
/// <summary>
/// Measures text using the specified layout options.
/// </summary>
/// <param name="text">The System.String to measure.</param>
/// <param name="font">The System.Drawing.Font that will be used to measure text.</param>
/// <returns>An OpenTK.Graphics.TextExtents instance that contains the results of the measurement.</returns>
TextExtents Measure(string text, Font font);
/// <summary>
/// Measures text using the specified layout options.
/// </summary>
/// <param name="text">The System.String to measure.</param>
/// <param name="font">The System.Drawing.Font that will be used to measure text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <returns>An OpenTK.Graphics.TextExtents instance that contains the results of the measurement.</returns>
TextExtents Measure(string text, Font font, RectangleF rect);
/// <summary>
/// Measures text using the specified layout options.
/// </summary>
/// <param name="text">The System.String to measure.</param>
/// <param name="font">The System.Drawing.Font that will be used to measure text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to measure text.</param>
/// <returns>An OpenTK.Graphics.TextExtents instance that contains the results of the measurement.</returns>
TextExtents Measure(string text, Font font, RectangleF rect, TextPrinterOptions options);
/// <summary>
/// Measures text using the specified layout options.
/// </summary>
/// <param name="text">The System.String to measure.</param>
/// <param name="font">The System.Drawing.Font that will be used to measure text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to measure text.</param>
/// <param name="alignment">The OpenTK.Graphics.TextAlignment that will be used to measure text.</param>
/// <returns>An OpenTK.Graphics.TextExtents instance that contains the results of the measurement.</returns>
TextExtents Measure(string text, Font font, RectangleF rect, TextPrinterOptions options, TextAlignment alignment);
/// <summary>
/// Measures text using the specified layout options.
/// </summary>
/// <param name="text">The System.String to measure.</param>
/// <param name="font">The System.Drawing.Font that will be used to measure text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to measure text.</param>
/// <param name="alignment">The OpenTK.Graphics.TextAlignment that will be used to measure text.</param>
/// <param name="direction">The OpenTK.Graphics.TextDirection that will be used to measure text.</param>
/// <returns>An OpenTK.Graphics.TextExtents instance that contains the results of the measurement.</returns>
TextExtents Measure(string text, Font font, RectangleF rect, TextPrinterOptions options, TextAlignment alignment, TextDirection direction);
#endregion
#region Begin
/// <summary>
/// Sets up a resolution-dependent orthographic projection.
/// </summary>
void Begin();
#endregion
#region End
/// <summary>
/// Restores the projection and modelview matrices to their previous state.
/// </summary>
void End();
#endregion
#region Obsolete
[Obsolete("Use TextPrinter.Print instead")]
void Draw(TextHandle handle);
[Obsolete("Use TextPrinter.Print instead")]
void Draw(string text, TextureFont font);
[Obsolete("Use TextPrinter.Print instead")]
void Prepare(string text, TextureFont font, out TextHandle handle);
#endregion
}
}

46
Source/Utilities/Graphics/RgbaTexture2D.cs
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@ -1,46 +0,0 @@
#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 OpenTK.Graphics.OpenGL;
namespace OpenTK.Graphics
{
class RgbaTexture2D : Texture2D
{
public RgbaTexture2D(int width, int height)
: base(width, height)
{ }
protected override PixelInternalFormat InternalFormat
{
get { return PixelInternalFormat.Rgba; }
}
}
}

62
Source/Utilities/Graphics/Text/CachedGlyphInfo.cs
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@ -1,62 +0,0 @@
#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;
namespace OpenTK.Graphics.Text
{
struct CachedGlyphInfo
{
public readonly Texture2D Texture;
public readonly RectangleF RectangleNormalized;
public Rectangle Rectangle
{
get
{
return new Rectangle(
(int)(RectangleNormalized.X * Texture.Width),
(int)(RectangleNormalized.Y * Texture.Height),
(int)(RectangleNormalized.Width * Texture.Width),
(int)(RectangleNormalized.Height * Texture.Height));
}
}
// Rect denotes the absolute position of the glyph in the texture [0, Texture.Width], [0, Texture.Height].
public CachedGlyphInfo(Texture2D texture, Rectangle rect)
{
Texture = texture;
RectangleNormalized = new RectangleF(
rect.X / (float)texture.Width,
rect.Y / (float)texture.Height,
rect.Width / (float)texture.Width,
rect.Height / (float)texture.Height);
}
}
}

64
Source/Utilities/Graphics/Text/GL11TextOutputProvider.cs
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using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using OpenTK.Graphics.OpenGL;
namespace OpenTK.Graphics.Text
{
sealed class GL11TextOutputProvider : GL1TextOutputProvider
{
#region Fields
TextQuality quality;
GlyphCache cache;
#endregion
#region Constuctors
public GL11TextOutputProvider(TextQuality quality)
{
if (quality == TextQuality.High || quality == TextQuality.Default)
this.quality = TextQuality.Medium;
else
this.quality = quality;
}
#endregion
#region Protected Members
protected override void SetBlendFunction()
{
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha); // For grayscale
}
protected override void SetColor(Color color)
{
GL.Color3(color);
}
protected override TextQuality TextQuality
{
get { return quality; }
}
protected override GlyphCache Cache
{
get
{
if (cache == null)
{
if (GL.GetString(StringName.Renderer).Contains("ProSavage/Twister"))
cache = new GlyphCache<RgbaTexture2D>();
else
cache = new GlyphCache<AlphaTexture2D>();
}
return cache;
}
}
#endregion
}
}

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Source/Utilities/Graphics/Text/GL12TextOutputProvider.cs
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using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using OpenTK.Graphics.OpenGL;
namespace OpenTK.Graphics.Text
{
sealed class GL12TextOutputProvider : GL1TextOutputProvider
{
#region Fields
TextQuality quality;
GlyphCache cache;
#endregion
#region Constuctors
public GL12TextOutputProvider(TextQuality quality)
{
this.quality = quality;
cache = new GlyphCache<RgbaTexture2D>();
}
#endregion
protected override void SetBlendFunction()
{
GL.BlendFunc(BlendingFactorSrc.ConstantColorExt, BlendingFactorDest.OneMinusSrcColor);
}
protected override void SetColor(Color color)
{
GL.Color3(Color.White);
GL.BlendColor(color);
}
protected override TextQuality TextQuality
{
get { return quality; }
}
protected override GlyphCache Cache
{
get { return cache; }
}
}
}

339
Source/Utilities/Graphics/Text/GL1TextOutputProvider.cs
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@ -1,339 +0,0 @@
#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.Drawing;
using OpenTK.Graphics.OpenGL;
namespace OpenTK.Graphics.Text
{
abstract class GL1TextOutputProvider : ITextOutputProvider
{
#region Fields
// Triangle lists, sorted by texture.
Dictionary<Texture2D, List<Vector2>> active_lists = new Dictionary<Texture2D, List<Vector2>>();
Queue<List<Vector2>> inactive_lists = new Queue<List<Vector2>>();
#pragma warning disable 0649
struct Viewport { public int X, Y, Width, Height; }
#pragma warning restore 0649
// Used to save the current state in Begin() and restore it in End()
Stack<Matrix4> projection_stack = new Stack<Matrix4>();
Stack<Matrix4> modelview_stack = new Stack<Matrix4>();
Stack<Matrix4> texture_stack = new Stack<Matrix4>();
Stack<Viewport> viewport_stack = new Stack<Viewport>();
// Used as temporary storage when saving / restoring the current state.
Viewport viewport = new Viewport();
Matrix4 matrix = new Matrix4();
// TextBlock - display list cache.
// Todo: we need a cache eviction strategy.
const int block_cache_capacity = 32;
readonly Dictionary<int, int> block_cache = new Dictionary<int, int>(block_cache_capacity);
bool disposed;
#endregion
#region Constructors
public GL1TextOutputProvider()
{
inactive_lists.Enqueue(new List<Vector2>());
}
#endregion
#region ITextOutputProvider Members
#region Print
public void Print(ref TextBlock block, Color color, IGlyphRasterizer rasterizer)
{
GL.PushAttrib(AttribMask.CurrentBit | AttribMask.TextureBit | AttribMask.EnableBit | AttribMask.ColorBufferBit | AttribMask.DepthBufferBit);
GL.Enable(EnableCap.Texture2D);
GL.Enable(EnableCap.Blend);
SetBlendFunction();
GL.Disable(EnableCap.DepthTest);
GL.TexEnv(TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvMode, (int)All.Modulate);
GL.TexEnv(TextureEnvTarget.TextureEnv, TextureEnvParameter.TextureEnvColor, new Color4(0, 0, 0, 0));
GL.Disable(EnableCap.TextureGenQ);
GL.Disable(EnableCap.TextureGenR);
GL.Disable(EnableCap.TextureGenS);
GL.Disable(EnableCap.TextureGenT);
RectangleF position;
SetColor(color);
int block_hash = block.GetHashCode();
if (block_cache.ContainsKey(block_hash))
{
GL.CallList(block_cache[block_hash]);
}
else
{
using (TextExtents extents = rasterizer.MeasureText(ref block))
{
// Build layout
int current = 0;
foreach (Glyph glyph in block)
{
// Do not render whitespace characters or characters outside the clip rectangle.
if (glyph.IsWhiteSpace || extents[current].Width == 0 || extents[current].Height == 0)
{
current++;
continue;
}
else if (!Cache.Contains(glyph))
Cache.Add(glyph, rasterizer, TextQuality);
CachedGlyphInfo info = Cache[glyph];
position = extents[current++];
// Use the real glyph width instead of the measured one (we want to achieve pixel perfect output).
position.Size = info.Rectangle.Size;
if (!active_lists.ContainsKey(info.Texture))
{
if (inactive_lists.Count > 0)
{
List<Vector2> list = inactive_lists.Dequeue();
list.Clear();
active_lists.Add(info.Texture, list);
}
else
{
active_lists.Add(info.Texture, new List<Vector2>());
}
}
{
// Interleaved array: Vertex, TexCoord, Vertex, ...
List<Vector2> current_list = active_lists[info.Texture];
current_list.Add(new Vector2(info.RectangleNormalized.Left, info.RectangleNormalized.Top));
current_list.Add(new Vector2(position.Left, position.Top));
current_list.Add(new Vector2(info.RectangleNormalized.Left, info.RectangleNormalized.Bottom));
current_list.Add(new Vector2(position.Left, position.Bottom));
current_list.Add(new Vector2(info.RectangleNormalized.Right, info.RectangleNormalized.Bottom));
current_list.Add(new Vector2(position.Right, position.Bottom));
current_list.Add(new Vector2(info.RectangleNormalized.Right, info.RectangleNormalized.Bottom));
current_list.Add(new Vector2(position.Right, position.Bottom));
current_list.Add(new Vector2(info.RectangleNormalized.Right, info.RectangleNormalized.Top));
current_list.Add(new Vector2(position.Right, position.Top));
current_list.Add(new Vector2(info.RectangleNormalized.Left, info.RectangleNormalized.Top));
current_list.Add(new Vector2(position.Left, position.Top));
}
}
}
// Render
int display_list = 0;
if ((block.Options & TextPrinterOptions.NoCache) == 0)
{
display_list = GL.GenLists(1);
// Mesa Indirect gerates an InvalidOperation error right after
// GL.EndList() when using ListMode.CompileAndExecute.
// Using ListMode.Compile as a workaround.
GL.NewList(display_list, ListMode.Compile);
}
foreach (Texture2D key in active_lists.Keys)
{
List<Vector2> list = active_lists[key];
key.Bind();
GL.Begin(BeginMode.Triangles);
for (int i = 0; i < list.Count; i += 2)
{
GL.TexCoord2(list[i]);
GL.Vertex2(list[i + 1]);
}
GL.End();
}
if ((block.Options & TextPrinterOptions.NoCache) == 0)
{
GL.EndList();
block_cache.Add(block_hash, display_list);
GL.CallList(display_list);
}
// Clean layout
foreach (List<Vector2> list in active_lists.Values)
{
//list.Clear();
inactive_lists.Enqueue(list);
}
active_lists.Clear();
}
GL.PopAttrib();
}
#endregion
#region Clear
public void Clear()
{
Cache.Clear();
foreach (int display_list in block_cache.Keys)
GL.DeleteLists(display_list, 1);
block_cache.Clear();
}
#endregion
#region Begin
public void Begin()
{
if (disposed)
throw new ObjectDisposedException(this.GetType().ToString());
GraphicsContext.Assert();
// Save the state of everything we are going to modify:
// the current matrix mode, viewport state and the projection, modelview and texture matrices.
// All these will be restored in the TextPrinter.End() method.
int current_matrix;
GL.GetInteger(GetPName.MatrixMode, out current_matrix);
GL.GetInteger(GetPName.Viewport, out viewport.X);
viewport_stack.Push(viewport);
GL.GetFloat(GetPName.ProjectionMatrix, out matrix.Row0.X);
projection_stack.Push(matrix);
GL.GetFloat(GetPName.ModelviewMatrix, out matrix.Row0.X);
modelview_stack.Push(matrix);
GL.GetFloat(GetPName.TextureMatrix, out matrix.Row0.X);
texture_stack.Push(matrix);
// Prepare to draw text. We want pixel perfect precision, so we setup a 2D mode,
// with size equal to the window (in pixels).
// While we could also render text in 3D mode, it would be very hard to get
// pixel-perfect precision.
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
GL.Ortho(viewport.X, viewport.Width, viewport.Height, viewport.Y, -1.0, 1.0);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
GL.MatrixMode(MatrixMode.Texture);
GL.LoadIdentity();
GL.MatrixMode((MatrixMode)current_matrix);
}
#endregion
#region End
public void End()
{
if (disposed)
throw new ObjectDisposedException(this.GetType().ToString());
GraphicsContext.Assert();
int current_matrix;
GL.GetInteger(GetPName.MatrixMode, out current_matrix);
viewport = viewport_stack.Pop();
GL.Viewport(viewport.X, viewport.Y, viewport.Width, viewport.Height);
GL.MatrixMode(MatrixMode.Texture);
matrix = texture_stack.Pop();
GL.LoadMatrix(ref matrix);
GL.MatrixMode(MatrixMode.Modelview);
matrix = modelview_stack.Pop();
GL.LoadMatrix(ref matrix);
GL.MatrixMode(MatrixMode.Projection);
matrix = projection_stack.Pop();
GL.LoadMatrix(ref matrix);
GL.MatrixMode((MatrixMode)current_matrix);
}
#endregion
#endregion
#region Protected Members
protected abstract void SetBlendFunction();
protected abstract void SetColor(Color color);
protected abstract TextQuality TextQuality { get; }
protected abstract GlyphCache Cache { get; }
#endregion
#region Static Members
public static GL1TextOutputProvider Create(TextQuality quality)
{
if (!GL.SupportsExtension("Version12") || !GL.SupportsFunction("BlendColor") || quality == TextQuality.Low || quality == TextQuality.Medium)
return new GL11TextOutputProvider(quality);
else
return new GL12TextOutputProvider(quality);
}
#endregion
#region IDisposable Members
public void Dispose()
{
if (!disposed)
{
Cache.Dispose();
disposed = true;
}
}
#endregion
}
}

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Source/Utilities/Graphics/Text/GdiPlusGlyphRasterizer.cs
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@ -1,501 +0,0 @@
#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.Diagnostics;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Text;
using OpenTK.Platform;
namespace OpenTK.Graphics.Text
{
sealed class GdiPlusGlyphRasterizer : IGlyphRasterizer
{
#region Fields
// Note: as an optimization, we store the TextBlock hashcode instead of the TextBlock itself.
Dictionary<int, TextExtents> block_cache = new Dictionary<int, TextExtents>();
System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(new Bitmap(1, 1));
IntPtr[] regions = new IntPtr[GdiPlus.MaxMeasurableCharacterRanges];
CharacterRange[] characterRanges = new CharacterRange[GdiPlus.MaxMeasurableCharacterRanges];
Bitmap glyph_surface;
System.Drawing.Graphics glyph_renderer;
readonly List<RectangleF> measured_glyphs = new List<RectangleF>(256);
readonly ObjectPool<PoolableTextExtents> text_extents_pool = new ObjectPool<PoolableTextExtents>();
// Check the constructor, too, for additional flags.
// Used for measuring text. Can set the leftToRight, rightToLeft, vertical and measure trailing spaces flags.
readonly StringFormat measure_string_format = new StringFormat(StringFormat.GenericDefault);
readonly StringFormat measure_string_format_tight = new StringFormat(StringFormat.GenericTypographic);
// Used for loading glyphs. Only use leftToRight!
readonly StringFormat load_glyph_string_format = new StringFormat(StringFormat.GenericDefault);
readonly StringFormat load_glyph_string_format_tight = new StringFormat(StringFormat.GenericTypographic);
static readonly char[] newline_characters = new char[] { '\n', '\r' };
static readonly SizeF MaximumGraphicsClipSize;
#endregion
#region Constructors
static GdiPlusGlyphRasterizer()
{
using (Bitmap bmp = new Bitmap(1, 1))
using (System.Drawing.Graphics gfx = System.Drawing.Graphics.FromImage(bmp))
{
MaximumGraphicsClipSize = gfx.ClipBounds.Size;
}
}
public GdiPlusGlyphRasterizer()
{
measure_string_format.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces | StringFormatFlags.NoClip;
measure_string_format_tight.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces;
}
#endregion
#region IGlyphRasterizer Members
#region Rasterize
public Bitmap Rasterize(Glyph glyph)
{
return Rasterize(glyph, TextQuality.Default);
}
public Bitmap Rasterize(Glyph glyph, TextQuality quality)
{
EnsureSurfaceSize(ref glyph_surface, ref glyph_renderer, glyph.Font);
SetTextRenderingOptions(glyph_renderer, glyph.Font, quality);
RectangleF r2 = new RectangleF();
glyph_renderer.Clear(Color.Transparent);
glyph_renderer.DrawString(glyph.Character.ToString(), glyph.Font, Brushes.White, Point.Empty, //new Point(glyph_surface.Width, 0),
glyph.Font.Style == FontStyle.Italic ? load_glyph_string_format : load_glyph_string_format_tight);
r2 = FindEdges(glyph_surface, true);
//if ((default_string_format.FormatFlags & StringFormatFlags.DirectionRightToLeft) != 0)
//{
// glyph_renderer.DrawString(glyph.Character.ToString(), glyph.Font, Brushes.White, Point.Empty, //new Point(glyph_surface.Width, 0),
// load_glyph_string_format);//glyph.Font.Style == FontStyle.Italic ? load_glyph_string_format : default_string_format);
// r2 = FindEdges(glyph_surface, true);
//}
//else
//{
// glyph_renderer.DrawString(glyph.Character.ToString(), glyph.Font, Brushes.White, Point.Empty,
// load_glyph_string_format_tight); //glyph.Font.Style == FontStyle.Italic ? load_glyph_string_format : default_string_format);
// r2 = FindEdges(glyph_surface, false);
//}
return glyph_surface.Clone(r2, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
}
#endregion
#region MeasureText
public TextExtents MeasureText(ref TextBlock block)
{
return MeasureText(ref block, TextQuality.Default);
}
public TextExtents MeasureText(ref TextBlock block, TextQuality quality)
{
// First, check if we have cached this text block. Do not use block_cache.TryGetValue, to avoid thrashing
// the user's TextBlockExtents struct.
int hashcode = block.GetHashCode();
if (block_cache.ContainsKey(hashcode))
return block_cache[hashcode];
// If this block is not cached, we have to measure it and (potentially) place it in the cache.
TextExtents extents = MeasureTextExtents(ref block, quality);
if ((block.Options & TextPrinterOptions.NoCache) == 0)
block_cache.Add(hashcode, extents);
return extents;
}
#endregion
#region Clear
public void Clear()
{
block_cache.Clear();
}
#endregion
#endregion
#region Private Members
#region EnsureSurfaceSize
void EnsureSurfaceSize(ref Bitmap bmp, ref System.Drawing.Graphics gfx, Font font)
{
if (bmp == null || bmp.Width < 2 * font.Size || bmp.Height < 2 * font.Size)
{
if (bmp != null)
bmp.Dispose();
if (gfx != null)
gfx.Dispose();
bmp = new Bitmap((int)(2 * font.Size), (int)(2 * font.Size));
gfx = System.Drawing.Graphics.FromImage(bmp);
}
}
#endregion
#region SetRenderingOptions
// Modify rendering settings (antialiasing, grid fitting) to improve appearance.
void SetTextRenderingOptions(System.Drawing.Graphics gfx, Font font, TextQuality quality)
{
switch (quality)
{
case TextQuality.Default:
gfx.TextRenderingHint = TextRenderingHint.SystemDefault;
break;
case TextQuality.High:
gfx.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
break;
case TextQuality.Medium:
if (font.Size <= 18.0f)
gfx.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
else
gfx.TextRenderingHint = TextRenderingHint.AntiAlias;
break;
case TextQuality.Low:
if (font.Size <= 18.0f)
gfx.TextRenderingHint = TextRenderingHint.SingleBitPerPixelGridFit;
else
gfx.TextRenderingHint = TextRenderingHint.SingleBitPerPixel;
break;
}
}
#endregion
#region MeasureTextExtents
TextExtents MeasureTextExtents(ref TextBlock block, TextQuality quality)
{
// Todo: Parse layout options:
StringFormat format = block.Font.Italic ? measure_string_format : measure_string_format_tight;
//StringFormat format = measure_string_format_tight;
if (block.Direction == TextDirection.Vertical)
format.FormatFlags |= StringFormatFlags.DirectionVertical;
else
format.FormatFlags &= ~StringFormatFlags.DirectionVertical;
if (block.Direction == TextDirection.RightToLeft)
format.FormatFlags |= StringFormatFlags.DirectionRightToLeft;
else
format.FormatFlags &= ~StringFormatFlags.DirectionRightToLeft;
if (block.Alignment == TextAlignment.Near)
format.Alignment = StringAlignment.Near;
else if (block.Alignment == TextAlignment.Center)
format.Alignment = StringAlignment.Center;
else
format.Alignment = StringAlignment.Far;
TextExtents extents = text_extents_pool.Acquire();
RectangleF rect = block.Bounds;
// Work around Mono/GDI+ bug, which causes incorrect
// text wraping when block.Bounds == SizeF.Empty.
if (block.Bounds.Size == SizeF.Empty)
rect.Size = MaximumGraphicsClipSize;
SetTextRenderingOptions(graphics, block.Font, quality);
IntPtr native_graphics = GdiPlus.GetNativeGraphics(graphics);
IntPtr native_font = GdiPlus.GetNativeFont(block.Font);
IntPtr native_string_format = GdiPlus.GetNativeStringFormat(format);
float max_width = 0, max_height = 0;
// It seems that the mere presence of \n and \r characters
// is enough for Mono to botch the layout (even if these
// characters are not processed.) We'll need to find a
// different way to perform layout on Mono, probably
// through Pango.
// Todo: This workaround allocates memory.
//if (Configuration.RunningOnMono)
{
string[] lines = block.Text.Replace("\r", String.Empty).Split('\n');
foreach (string s in lines)
{
float width, height;
extents.AddRange(MeasureGlyphExtents(
ref block, s,
native_graphics, native_font, native_string_format,
ref rect, out width, out height));
if ((block.Direction & TextDirection.Vertical) == 0)
rect.Y += block.Font.Height;
else
rect.X += block.Font.Height;
if (width > max_width)
max_width = width;
if (height > max_height)
max_height = height;
}
}
if (extents.Count > 0)
extents.BoundingBox = new RectangleF(extents[0].X, extents[0].Y, max_width, max_height);
else
extents.BoundingBox = RectangleF.Empty;
return extents;
}
#endregion
#region MeasureGlyphExtents
// Gets the bounds of each character in a line of text.
// Each line is processed in blocks of 32 characters (GdiPlus.MaxMeasurableCharacterRanges).
IEnumerable<RectangleF> MeasureGlyphExtents(
ref TextBlock block, string text,
IntPtr native_graphics, IntPtr native_font, IntPtr native_string_format,
ref RectangleF layoutRect, out float max_width, out float max_height)
{
measured_glyphs.Clear();
max_width = layoutRect.Left;
max_height = layoutRect.Top;
float last_line_width = 0, last_line_height = 0;
int current = 0;
while (current < text.Length)
{
int num_characters = (text.Length - current) > GdiPlus.MaxMeasurableCharacterRanges ?
GdiPlus.MaxMeasurableCharacterRanges :
text.Length - current;
int status = 0;
// Prepare the character ranges and region structs for the measurement.
for (int i = 0; i < num_characters; i++)
{
if (text[current + i] == '\n' || text[current + i] == '\r')
throw new NotSupportedException();
characterRanges[i] = new CharacterRange(current + i, 1);
IntPtr region;
status = GdiPlus.CreateRegion(out region);
regions[i] = region;
Debug.Assert(status == 0, String.Format("GDI+ error: {0}", status));
}
status = GdiPlus.SetStringFormatMeasurableCharacterRanges(native_string_format, num_characters, characterRanges);
Debug.Assert(status == 0, String.Format("GDI+ error: {0}", status));
status = GdiPlus.MeasureCharacterRanges(native_graphics, text, text.Length,
native_font, ref layoutRect, native_string_format, num_characters, regions);
Debug.Assert(status == 0, String.Format("GDI+ error: {0}", status));
// Read back the results of the measurement.
for (int i = 0; i < num_characters; i++)
{
RectangleF rect = new RectangleF();
GdiPlus.GetRegionBounds(regions[i], native_graphics, ref rect);
Debug.Assert(status == 0, String.Format("GDI+ error: {0}", status));
GdiPlus.DeleteRegion(regions[i]);
Debug.Assert(status == 0, String.Format("GDI+ error: {0}", status));
if (rect.Bottom > max_height)
max_height = rect.Bottom;
if (rect.Right > max_width)
max_width = rect.Right;
if (rect.X > last_line_width)
last_line_width = rect.X;
if (rect.Y > last_line_height)
last_line_height = rect.Y;
measured_glyphs.Add(rect);
}
current += num_characters;
}
// Make sure the current height is updated, if the the current line has wrapped due to word-wraping.
// Otherwise, the next line will overlap with the current one.
if (measured_glyphs.Count > 1)
{
if ((block.Direction & TextDirection.Vertical) == 0)
{
if (layoutRect.Y < last_line_height)
layoutRect.Y = last_line_height;
}
else
{
if (layoutRect.X < last_line_width)
layoutRect.X = last_line_width;
}
}
// Mono's GDI+ implementation suffers from an issue where the specified layoutRect is not taken into
// account. We will try to improve the situation by moving text to the correct location on this
// error condition. This will not help word wrapping, but it is better than nothing.
// Todo: Mono 2.8 is supposed to ship with a Pango-based GDI+ text renderer, which should not
// suffer from this bug. Verify that this is the case and remove the hack.
if (Configuration.RunningOnMono && (layoutRect.X != 0 || layoutRect.Y != 0) && measured_glyphs.Count > 0)
{
for (int i = 0; i < measured_glyphs.Count; i++)
{
RectangleF rect = measured_glyphs[i];
rect.X += layoutRect.X;
rect.Y += layoutRect.Y;
measured_glyphs[i] = rect;
}
}
return measured_glyphs;
}
#endregion
#region FindEdges
#pragma warning disable 0649
struct Pixel { public byte B, G, R, A; }
#pragma warning restore 0649
// Note: The bool parameter is not used at this point.
// We might need it if we ever load true rightToLeft glyphs.
Rectangle FindEdges(Bitmap bmp, bool rightToLeft)
{
BitmapData data = bmp.LockBits(
new Rectangle(0, 0, bmp.Width, bmp.Height),
ImageLockMode.ReadOnly,
System.Drawing.Imaging.PixelFormat.Format32bppArgb);
//Rectangle rect = rightToLeft ?
// Rectangle.FromLTRB(FindLeftEdge(bmp, data.Scan0), 0, bmp.Width - 1, FindBottomEdge(bmp, data.Scan0)) :
// Rectangle.FromLTRB(0, 0, FindRightEdge(bmp, data.Scan0), FindBottomEdge(bmp, data.Scan0));
Rectangle rect =
Rectangle.FromLTRB(0, 0, FindRightEdge(bmp, data.Scan0), FindBottomEdge(bmp, data.Scan0));
//Rectangle.FromLTRB(FindLeftEdge(bmp, data.Scan0), 0, FindRightEdge(bmp, data.Scan0), FindBottomEdge(bmp, data.Scan0));
bmp.UnlockBits(data);
return rect;
}
#endregion
#region Find[Left|Right|Top|Bottom]Edge
// Iterates through the bmp, and returns the first row or line that contains a non-transparent pixels.
int FindLeftEdge(Bitmap bmp, IntPtr ptr)
{
for (int x = 0; x < bmp.Width; x++)
for (int y = 0; y < bmp.Height; y++)
unsafe
{
if (((Pixel*)(ptr) + y * bmp.Width + x)->A != 0)
return x;
}
return bmp.Width - 1;
}
int FindRightEdge(Bitmap bmp, IntPtr ptr)
{
for (int x = bmp.Width - 1; x >= 0; x--)
for (int y = 0; y < bmp.Height; y++)
unsafe
{
if (((Pixel*)(ptr) + y * bmp.Width + x)->A != 0)
return x + 1;
}
return 0;
}
int FindTopEdge(Bitmap bmp, IntPtr ptr)
{
for (int y = 0; y < bmp.Height; y++)
for (int x = 0; x < bmp.Width; x++)
unsafe
{
if (((Pixel*)(ptr) + y * bmp.Width + x)->A != 0)
return y;
}
return bmp.Height - 1;
}
int FindBottomEdge(Bitmap bmp, IntPtr ptr)
{
for (int y = bmp.Height - 1; y >= 0; y--)
for (int x = 0; x < bmp.Width; x++)
unsafe
{
if (((Pixel*)(ptr) + y * bmp.Width + x)->A != 0)
return y + 1;
}
return 0;
}
#endregion
#endregion
}
}

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Source/Utilities/Graphics/Text/Glyph.cs
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@ -1,153 +0,0 @@
#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;
namespace OpenTK.Graphics.Text
{
struct Glyph : IEquatable<Glyph>
{
char character;
Font font;
#region Constructors
/// <summary>
/// Constructs a new Glyph that represents the given character and Font.
/// </summary>
/// <param name="c">The character to represent.</param>
/// <param name="font">The Font of the character.</param>
public Glyph(char c, Font font)
{
if (font == null)
throw new ArgumentNullException("font");
character = c;
this.font = font;
}
#endregion
#region Public Methods
#region public char Character
/// <summary>
/// Gets the character represented by this Glyph.
/// </summary>
public char Character
{
get { return character; }
private set { character = value; }
}
#endregion
#region public Font Font
/// <summary>
/// Gets the Font of this Glyph.
/// </summary>
public Font Font
{
get { return font; }
private set
{
if (value == null)
throw new ArgumentNullException("Font", "Glyph font cannot be null");
font = value;
}
}
#endregion
#region public bool IsWhiteSpace
public bool IsWhiteSpace
{
get { return Char.IsWhiteSpace(Character); }
}
#endregion
#region public override bool Equals(object obj)
/// <summary>
/// Checks whether the given object is equal (memberwise) to the current Glyph.
/// </summary>
/// <param name="obj">The obj to check.</param>
/// <returns>True, if the object is identical to the current Glyph.</returns>
public override bool Equals(object obj)
{
if (obj is Glyph)
return this.Equals((Glyph)obj);
return base.Equals(obj);
}
#endregion
#region public override string ToString()
/// <summary>
/// Describes this Glyph object.
/// </summary>
/// <returns>Returns a System.String describing this Glyph.</returns>
public override string ToString()
{
return String.Format("'{0}', {1} {2}, {3} {4}", Character, Font.Name, font.Style, font.Size, font.Unit);
}
#endregion
#region public override int GetHashCode()
/// <summary>
/// Calculates the hashcode for this Glyph.
/// </summary>
/// <returns>A System.Int32 containing a hashcode that uniquely identifies this Glyph.</returns>
public override int GetHashCode()
{
return character.GetHashCode() ^ font.GetHashCode();
}
#endregion
#endregion
#region IEquatable<Glyph> Members
public bool Equals(Glyph other)
{
return Character == other.Character && Font == other.Font;
}
#endregion
}
}

154
Source/Utilities/Graphics/Text/GlyphCache.cs
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@ -1,154 +0,0 @@
#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.Drawing;
namespace OpenTK.Graphics.Text
{
abstract class GlyphCache : IGlyphCache
{
#region IGlyphCache Members
public abstract void Add(Glyph glyph, IGlyphRasterizer rasterizer, TextQuality quality);
public abstract bool Contains(Glyph glyph);
public abstract CachedGlyphInfo this[Glyph glyph] { get; }
public abstract void Clear();
public abstract void Dispose();
#endregion
}
sealed class GlyphCache<T> : GlyphCache where T : Texture2D
{
#region Fields
List<GlyphSheet<T>> sheets = new List<GlyphSheet<T>>();
Dictionary<Glyph, CachedGlyphInfo> cached_glyphs = new Dictionary<Glyph, CachedGlyphInfo>();
bool disposed;
const int SheetWidth = 512, SheetHeight = 512;
#endregion
#region Constructors
public GlyphCache()
{
sheets.Add(new GlyphSheet<T>(SheetWidth, SheetHeight));
}
#endregion
#region IGlyphCache Members
public override void Add(Glyph glyph, IGlyphRasterizer rasterizer, TextQuality quality)
{
if (rasterizer == null)
throw new ArgumentNullException("rasterizer");
bool inserted = false;
using (Bitmap bmp = rasterizer.Rasterize(glyph, quality))
{
Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
foreach (GlyphSheet<T> sheet in sheets)
{
inserted = InsertGlyph(glyph, bmp, rect, sheet);
if (inserted)
break;
}
if (!inserted)
{
GlyphSheet<T> sheet = new GlyphSheet<T>(SheetWidth, SheetHeight);
sheets.Add(sheet);
InsertGlyph(glyph, bmp, rect, sheet);
}
}
}
public override bool Contains(Glyph glyph)
{
return cached_glyphs.ContainsKey(glyph);
}
public override CachedGlyphInfo this[Glyph glyph]
{
get
{
return cached_glyphs[glyph];
}
}
public override void Clear()
{
for (int i = 0; i < sheets.Count; i++)
sheets[i].Dispose();
sheets.Clear();
}
#endregion
#region Private Members
// Asks the packer for an empty space and writes the glyph there.
bool InsertGlyph(Glyph glyph, Bitmap bmp, Rectangle source, GlyphSheet<T> sheet)
{
Rectangle target = new Rectangle();
if (!sheet.Packer.TryAdd(source, out target))
return false;
sheet.Texture.WriteRegion(source, target, 0, bmp);
cached_glyphs.Add(glyph, new CachedGlyphInfo(sheet.Texture, target));
return true;
}
#endregion
#region IDisposable Members
public override void Dispose()
{
if (!disposed)
{
Clear();
disposed = true;
}
}
#endregion
}
}

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Source/Utilities/Graphics/Text/GlyphEnumerator.cs
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#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;
namespace OpenTK.Graphics.Text
{
class GlyphEnumerator : IEnumerator<Glyph>
{
#region Fields
string text;
Font font;
IEnumerator<char> implementation;
#endregion
#region Constructors
public GlyphEnumerator(string text, Font font)
{
if (text == null)
throw new ArgumentNullException("text");
if (font == null)
throw new ArgumentNullException("font");
this.text = text;
this.font = font;
implementation = text.GetEnumerator();
}
#endregion
#region IEnumerator<Glyph> Members
public Glyph Current
{
get { return new Glyph(implementation.Current, font); }
}
#endregion
#region IDisposable Members
public void Dispose()
{
implementation.Dispose();
}
#endregion
#region IEnumerator Members
object System.Collections.IEnumerator.Current
{
get { return new Glyph(implementation.Current, font); }
}
public bool MoveNext()
{
bool status;
do
{
status = implementation.MoveNext();
} while (status && (implementation.Current == '\n' || implementation.Current == '\r'));
return status;
}
public void Reset()
{
implementation.Reset();
}
#endregion
}
}

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Source/Utilities/Graphics/Text/GlyphPacker.cs
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#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;
namespace OpenTK.Graphics.Text
{
class GlyphPacker
{
Node root;
#region --- Constructors ---
public GlyphPacker(int width, int height)
{
if (width <= 0)
throw new ArgumentOutOfRangeException("width", width, "Must be greater than zero.");
if (height <= 0)
throw new ArgumentOutOfRangeException("height", height, "Must be greater than zero.");
root = new Node();
root.Rectangle = new Rectangle(0, 0, width, width);
}
#endregion
#region --- Public Methods ---
#region public bool TryAdd(Rectangle boundingBox)
/// <summary>
/// Adds boundingBox to the GlyphPacker.
/// </summary>
/// <param name="boundingBox">The bounding box of the item to pack.</param>
/// <param name="packedRectangle">The System.Drawing.Rectangle that contains the position of the packed item.</param>
/// <returns>True, if the item was successfully packed; false if the item is too big for this packer..</returns>
/// <exception cref="InvalidOperationException">Occurs if the item is larger than the available TexturePacker area</exception>
/// <exception cref="TexturePackerFullException">Occurs if the item cannot fit in the remaining packer space.</exception>
public bool TryAdd(Rectangle boundingBox, out Rectangle packedRectangle)
{
if (!root.Rectangle.Contains(boundingBox))
{
packedRectangle = new Rectangle();
return false;
}
// Increase size so that the glyphs do not touch each other (to avoid rendering artifacts).
boundingBox.Width += 2;
boundingBox.Height += 2;
Node node = root.Insert(boundingBox);
// Tree is full and insertion failed:
if (node == null)
{
packedRectangle = new Rectangle();
return false;
}
packedRectangle = new Rectangle(node.Rectangle.X, node.Rectangle.Y, node.Rectangle.Width - 2, node.Rectangle.Height - 2);
return true;
}
#endregion
#region public Rectangle TryAdd(RectangleF boundingBox)
/// <summary>
/// Adds boundingBox to the GlyphPacker.
/// </summary>
/// <param name="boundingBox">The bounding box of the item to pack.</param>
/// <param name="packedRectangle">The System.Drawing.RectangleF that contains the position of the packed item.</param>
/// <returns>True, if the item was successfully packed; false if the item is too big for this packer..</returns>
/// <exception cref="InvalidOperationException">Occurs if the item is larger than the available TexturePacker area</exception>
/// <exception cref="TexturePackerFullException">Occurs if the item cannot fit in the remaining packer space.</exception>
public bool TryAdd(RectangleF boundingBox, out RectangleF packedRectangle)
{
Rectangle bbox = new Rectangle(
(int)boundingBox.X, (int)boundingBox.Y,
(int)(boundingBox.Width + 0.5f), (int)(boundingBox.Height + 0.5f));
return TryAdd(bbox, out packedRectangle);
}
#endregion
#region public Rectangle Add(Rectangle boundingBox)
/// <summary>
/// Adds boundingBox to the GlyphPacker.
/// </summary>
/// <param name="boundingBox">The bounding box of the item to pack.</param>
/// <returns>A System.Drawing.Rectangle containing the coordinates of the packed item.</returns>
/// <exception cref="InvalidOperationException">Occurs if the item is larger than the available TexturePacker area</exception>
/// <exception cref="TexturePackerFullException">Occurs if the item cannot fit in the remaining packer space.</exception>
public Rectangle Add(Rectangle boundingBox)
{
if (!TryAdd(boundingBox, out boundingBox))
throw new TexturePackerFullException();
return boundingBox;
}
#endregion
#region public Rectangle Add(RectangleF boundingBox)
/// <summary>
/// Rounds boundingBox to the largest integer and adds the resulting Rectangle to the GlyphPacker.
/// </summary>
/// <param name="boundingBox">The bounding box of the item to pack.</param>
/// <returns>A System.Drawing.Rectangle containing the coordinates of the packed item.</returns>
/// <exception cref="InvalidOperationException">Occurs if the item is larger than the available TexturePacker area</exception>
/// <exception cref="ArgumentException">Occurs if the item already exists in the TexturePacker.</exception>
public Rectangle Add(RectangleF boundingBox)
{
Rectangle bbox = new Rectangle(
(int)boundingBox.X, (int)boundingBox.Y,
(int)(boundingBox.Width + 0.5f), (int)(boundingBox.Height + 0.5f));
return Add(bbox);
}
#endregion
#region public void Clear()
/// <summary>
/// Discards all packed items.
/// </summary>
public void Clear()
{
root.Clear();
}
#endregion
#endregion
#region Node
class Node
{
public Node()
{
}
Node left, right;
Rectangle rect;
bool occupied;
public Rectangle Rectangle { get { return rect; } set { rect = value; } }
public Node Left { get { return left; } set { left = value; } }
public Node Right { get { return right; } set { right = value; } }
#region --- Constructor ---
public bool Leaf
{
get { return left == null && right == null; }
}
#endregion
#region Node Insert(Rectangle bbox)
public Node Insert( Rectangle bbox)
{
if (!this.Leaf)
{
// Recurse towards left child, and if that fails, towards the right.
Node new_node = left.Insert(bbox);
return new_node ?? right.Insert(bbox);
}
else
{
// We have recursed to a leaf.
// If it is not empty go back.
if (occupied)
return null;
// If this leaf is too small go back.
if (rect.Width < bbox.Width || rect.Height < bbox.Height)
return null;
// If this leaf is the right size, insert here.
if (rect.Width == bbox.Width && rect.Height == bbox.Height)
{
occupied = true;
return this;
}
// This leaf is too large, split it up. We'll decide which way to split
// by checking the width and height difference between this rectangle and
// out item's bounding box. If the width difference is larger, we'll split
// horizontaly, else verticaly.
left = new Node();
right = new Node();
int dw = this.rect.Width - bbox.Width + 1;
int dh = this.rect.Height - bbox.Height + 1;
if (dw > dh)
{
left.rect = new Rectangle(rect.Left, rect.Top, bbox.Width, rect.Height);
right.rect = new Rectangle(rect.Left + bbox.Width, rect.Top, rect.Width - bbox.Width, rect.Height);
}
else
{
left.rect = new Rectangle(rect.Left, rect.Top, rect.Width, bbox.Height);
right.rect = new Rectangle(rect.Left, rect.Top + bbox.Height, rect.Width, rect.Height - bbox.Height);
}
return left.Insert(bbox);
}
}
#endregion
#region public void Clear()
public void Clear()
{
if (left != null)
left.Clear();
if (right != null)
right.Clear();
left = right = null;
}
#endregion
}
#endregion
}
class TexturePackerFullException : Exception
{
public TexturePackerFullException() : base("There is not enough space to add this item. Consider calling the Clear() method.") { }
}
}

85
Source/Utilities/Graphics/Text/GlyphSheet.cs
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#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;
namespace OpenTK.Graphics.Text
{
class GlyphSheet<T> : IDisposable where T : Texture2D
{
#region Fields
readonly T texture;
readonly GlyphPacker packer;
bool disposed;
#endregion
#region Constructors
public GlyphSheet(int width, int height)
{
texture = (T)typeof(T).GetConstructor(new Type[] { typeof(int), typeof(int) }).Invoke(new object[] { width, height });
//texture.MagnificationFilter = TextureMagFilter.Nearest;
//texture.MinificationFilter = TextureMinFilter.Nearest;
packer = new GlyphPacker(width, height);
}
#endregion
#region Public Members
public T Texture
{
get { return texture; }
}
public GlyphPacker Packer
{
get { return packer; }
}
#endregion
#region IDisposable Members
public void Dispose()
{
if (!disposed)
{
texture.Dispose();
disposed = true;
}
}
#endregion
}
}

39
Source/Utilities/Graphics/Text/IGlyphCache.cs
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#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;
namespace OpenTK.Graphics.Text
{
interface IGlyphCache : IDisposable
{
void Add(Glyph glyph, IGlyphRasterizer rasterizer, TextQuality quality);
bool Contains(Glyph glyph);
CachedGlyphInfo this[Glyph glyph] { get; }
void Clear();
}
}

45
Source/Utilities/Graphics/Text/IGlyphRasterizer.cs
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#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 OpenTK.Graphics.Text;
namespace OpenTK.Graphics.Text
{
interface IGlyphRasterizer
{
Bitmap Rasterize(Glyph glyph);
Bitmap Rasterize(Glyph glyph, TextQuality quality);
TextExtents MeasureText(ref TextBlock block);
TextExtents MeasureText(ref TextBlock block, TextQuality quality);
void Clear();
}
}

42
Source/Utilities/Graphics/Text/ITextOutputProvider.cs
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#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;
namespace OpenTK.Graphics.Text
{
interface ITextOutputProvider : IDisposable
{
void Print(ref TextBlock block, Color color, IGlyphRasterizer rasterizer);
void Clear();
void Begin();
void End();
}
}

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Source/Utilities/Graphics/Text/PoolableTextExtents.cs
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using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK.Graphics.Text
{
class PoolableTextExtents : TextExtents, IPoolable<PoolableTextExtents>
{
ObjectPool<PoolableTextExtents> owner;
#region Constructors
public PoolableTextExtents()
{
}
#endregion
#region IPoolable<PoolableTextExtents> Members
ObjectPool<PoolableTextExtents> IPoolable<PoolableTextExtents>.Owner
{
get { return owner; }
set { owner = value; }
}
#endregion
#region IPoolable Members
void IPoolable.OnAcquire()
{
Clear();
}
void IPoolable.OnRelease()
{
}
#endregion
}
}

124
Source/Utilities/Graphics/Text/TextBlock.cs
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#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;
namespace OpenTK.Graphics.Text
{
// Uniquely identifies a block of text. This structure can be used to identify text blocks for caching.
struct TextBlock : IEquatable<TextBlock>, IEnumerable<Glyph>
{
#region Fields
public readonly string Text;
public readonly Font Font;
public readonly RectangleF Bounds;
public readonly TextPrinterOptions Options;
public readonly TextAlignment Alignment;
public readonly TextDirection Direction;
public readonly int UsageCount;
#endregion
#region Constructors
public TextBlock(string text, Font font, RectangleF bounds, TextPrinterOptions options, TextAlignment alignment, TextDirection direction)
{
Text = text;
Font = font;
Bounds = bounds;
Options = options;
Alignment = alignment;
Direction = direction;
UsageCount = 0;
}
#endregion
#region Public Members
public override bool Equals(object obj)
{
if (!(obj is TextBlock))
return false;
return Equals((TextBlock)obj);
}
public override int GetHashCode()
{
return Text.GetHashCode() ^ Font.GetHashCode() ^ Bounds.GetHashCode() ^ Options.GetHashCode();
}
public Glyph this[int i]
{
get { return new Glyph(Text[i], Font); }
}
#endregion
#region IEquatable<TextBlock> Members
public bool Equals(TextBlock other)
{
return
Text == other.Text &&
Font == other.Font &&
Bounds == other.Bounds &&
Options == other.Options;
}
#endregion
#region IEnumerable<Glyph> Members
public IEnumerator<Glyph> GetEnumerator()
{
return new GlyphEnumerator(Text, Font);
}
#endregion
#region IEnumerable Members
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
{
return new GlyphEnumerator(Text, Font);
}
#endregion
}
}

51
Source/Utilities/Graphics/Text/TextBlockComparer.cs
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#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;
namespace OpenTK.Graphics.Text
{
class TextBlockComparer : IComparer<TextBlock>
{
#region Constructors
public TextBlockComparer() { }
#endregion
#region IComparer<TextBlock> Members
public int Compare(TextBlock x, TextBlock y)
{
return x.UsageCount.CompareTo(y.UsageCount);
}
#endregion
}
}

19
Source/Utilities/Graphics/TextAlignment.cs
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using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK.Graphics
{
/// <summary>
/// Defines available alignments for text.
/// </summary>
public enum TextAlignment
{
/// <summary>The text is aligned to the near side (left for left-to-right text and right for right-to-left text).</summary>
Near = 0,
/// <summary>The text is aligned to the center.</summary>
Center,
/// <summary>The text is aligned to the far side (right for left-to-right text and left for right-to-left text).</summary>
Far
}
}

19
Source/Utilities/Graphics/TextDirection.cs
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using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK.Graphics
{
/// <summary>
/// Defines available directions for text layout.
/// </summary>
public enum TextDirection
{
/// <summary>The text is layed out from left to right.</summary>
LeftToRight,
/// <summary>The text is layed out from right to left.</summary>
RightToLeft,
/// <summary>The text is layed out vertically.</summary>
Vertical
}
}

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Source/Utilities/Graphics/TextExtents.cs
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#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;
namespace OpenTK.Graphics
{
/// <summary>
/// Holds the results of a text measurement.
/// </summary>
public class TextExtents : IDisposable
{
#region Fields
protected RectangleF text_extents;
protected List<RectangleF> glyph_extents = new List<RectangleF>();
public static readonly TextExtents Empty = new TextExtents();
#endregion
#region Constructors
internal TextExtents()
{
}
#endregion
#region Public Members
/// <summary>
/// Gets the bounding box of the measured text.
/// </summary>
public RectangleF BoundingBox
{
get { return text_extents; }
internal set { text_extents = value; }
}
/// <summary>
/// Gets the extents of each glyph in the measured text.
/// </summary>
/// <param name="i">The index of the glyph.</param>
/// <returns>The extents of the specified glyph.</returns>
public RectangleF this[int i]
{
get { return glyph_extents[i]; }
internal set { glyph_extents[i] = value; }
}
/// <summary>
/// Gets the extents of each glyph in the measured text.
/// </summary>
public IEnumerable<RectangleF> GlyphExtents
{
get { return (IEnumerable<RectangleF>)glyph_extents; }
}
/// <summary>
/// Gets the number of the measured glyphs.
/// </summary>
public int Count
{
get { return glyph_extents.Count; }
}
#endregion
#region Internal Members
internal void Add(RectangleF glyphExtent)
{
glyph_extents.Add(glyphExtent);
}
internal void AddRange(IEnumerable<RectangleF> glyphExtents)
{
glyph_extents.AddRange(glyphExtents);
}
internal void Clear()
{
BoundingBox = RectangleF.Empty;
glyph_extents.Clear();
}
internal TextExtents Clone()
{
TextExtents extents = new TextExtents();
extents.glyph_extents.AddRange(GlyphExtents);
extents.BoundingBox = BoundingBox;
return extents;
}
#endregion
#region IDisposable Members
/// <summary>
/// Frees the resources consumed by this TextExtents instance.
/// </summary>
public virtual void Dispose()
{
}
#endregion
}
}

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#region --- License ---
/* Licensed under the MIT/X11 license.
* Copyright (c) 2006-2008 the OpenTK Team.
* This notice may not be removed from any source distribution.
* See license.txt for licensing details.
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using System.Text.RegularExpressions;
using System.Runtime.InteropServices;
using System.Diagnostics;
using OpenTK.Graphics;
using OpenTK.Graphics.Text;
using OpenTK.Platform;
namespace OpenTK.Fonts { }
namespace OpenTK.Graphics
{
/// <summary>
/// Provides methods to perform layout and print hardware accelerated text.
/// </summary>
public sealed class TextPrinter : ITextPrinter
{
#region Fields
IGlyphRasterizer glyph_rasterizer;
ITextOutputProvider text_output;
TextQuality text_quality;
bool disposed;
#endregion
#region Constructors
/// <summary>
/// Constructs a new TextPrinter instance.
/// </summary>
public TextPrinter()
: this(null, null, TextQuality.Default) { }
/// <summary>
/// Constructs a new TextPrinter instance with the specified TextQuality level.
/// </summary>
/// <param name="quality">The desired TextQuality of this TextPrinter.</param>
public TextPrinter(TextQuality quality)
: this(null, null, quality) { }
TextPrinter(IGlyphRasterizer rasterizer, ITextOutputProvider output, TextQuality quality)
{
glyph_rasterizer = rasterizer;
text_output = output;
text_quality = quality;
}
#endregion
#region ITextPrinter Members
#region Print
/// <summary>
/// Prints text using the specified color and layout options.
/// </summary>
/// <param name="text">The System.String to print.</param>
/// <param name="font">The System.Drawing.Font that will be used to print text.</param>
/// <param name="color">The System.Drawing.Color that will be used to print text.</param>
public void Print(string text, Font font, Color color)
{
Print(text, font, color, RectangleF.Empty, TextPrinterOptions.Default, TextAlignment.Near, TextDirection.LeftToRight);
}
/// <summary>
/// Prints text using the specified color and layout options.
/// </summary>
/// <param name="text">The System.String to print.</param>
/// <param name="font">The System.Drawing.Font that will be used to print text.</param>
/// <param name="color">The System.Drawing.Color that will be used to print text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
public void Print(string text, Font font, Color color, RectangleF rect)
{
Print(text, font, color, rect, TextPrinterOptions.Default, TextAlignment.Near, TextDirection.LeftToRight);
}
/// <summary>
/// Prints text using the specified color and layout options.
/// </summary>
/// <param name="text">The System.String to print.</param>
/// <param name="font">The System.Drawing.Font that will be used to print text.</param>
/// <param name="color">The System.Drawing.Color that will be used to print text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to print text.</param>
public void Print(string text, Font font, Color color, RectangleF rect, TextPrinterOptions options)
{
Print(text, font, color, rect, options, TextAlignment.Near, TextDirection.LeftToRight);
}
/// <summary>
/// Prints text using the specified color and layout options.
/// </summary>
/// <param name="text">The System.String to print.</param>
/// <param name="font">The System.Drawing.Font that will be used to print text.</param>
/// <param name="color">The System.Drawing.Color that will be used to print text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to print text.</param>
/// <param name="alignment">The OpenTK.Graphics.TextAlignment that will be used to print text.</param>
public void Print(string text, Font font, Color color, RectangleF rect, TextPrinterOptions options, TextAlignment alignment)
{
Print(text, font, color, rect, options, alignment, TextDirection.LeftToRight);
}
/// <summary>
/// Prints text using the specified color and layout options.
/// </summary>
/// <param name="text">The System.String to print.</param>
/// <param name="font">The System.Drawing.Font that will be used to print text.</param>
/// <param name="color">The System.Drawing.Color that will be used to print text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to print text.</param>
/// <param name="alignment">The OpenTK.Graphics.TextAlignment that will be used to print text.</param>
/// <param name="direction">The OpenTK.Graphics.TextDirection that will be used to print text.</param>
public void Print(string text, Font font, Color color, RectangleF rect, TextPrinterOptions options, TextAlignment alignment, TextDirection direction)
{
if (disposed)
throw new ObjectDisposedException(this.GetType().ToString());
if (!ValidateParameters(text, font, rect))
return;
TextBlock block = new TextBlock(text, font, rect, options, alignment, direction);
TextOutput.Print(ref block, color, Rasterizer);
}
#endregion
#region Measure
/// <summary>
/// Measures text using the specified layout options.
/// </summary>
/// <param name="text">The System.String to measure.</param>
/// <param name="font">The System.Drawing.Font that will be used to measure text.</param>
/// <returns>An OpenTK.Graphics.TextExtents instance that contains the results of the measurement.</returns>
public TextExtents Measure(string text, Font font)
{
return Measure(text, font, RectangleF.Empty, TextPrinterOptions.Default, TextAlignment.Near, TextDirection.LeftToRight);
}
/// <summary>
/// Measures text using the specified layout options.
/// </summary>
/// <param name="text">The System.String to measure.</param>
/// <param name="font">The System.Drawing.Font that will be used to measure text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <returns>An OpenTK.Graphics.TextExtents instance that contains the results of the measurement.</returns>
public TextExtents Measure(string text, Font font, RectangleF rect)
{
return Measure(text, font, rect, TextPrinterOptions.Default, TextAlignment.Near, TextDirection.LeftToRight);
}
/// <summary>
/// Measures text using the specified layout options.
/// </summary>
/// <param name="text">The System.String to measure.</param>
/// <param name="font">The System.Drawing.Font that will be used to measure text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to measure text.</param>
/// <returns>An OpenTK.Graphics.TextExtents instance that contains the results of the measurement.</returns>
public TextExtents Measure(string text, Font font, RectangleF rect, TextPrinterOptions options)
{
return Measure(text, font, rect, options, TextAlignment.Near, TextDirection.LeftToRight);
}
/// <summary>
/// Measures text using the specified layout options.
/// </summary>
/// <param name="text">The System.String to measure.</param>
/// <param name="font">The System.Drawing.Font that will be used to measure text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to measure text.</param>
/// <param name="alignment">The OpenTK.Graphics.TextAlignment that will be used to measure text.</param>
/// <returns>An OpenTK.Graphics.TextExtents instance that contains the results of the measurement.</returns>
public TextExtents Measure(string text, Font font, RectangleF rect, TextPrinterOptions options, TextAlignment alignment)
{
return Measure(text, font, rect, options, alignment, TextDirection.LeftToRight);
}
/// <summary>
/// Measures text using the specified layout options.
/// </summary>
/// <param name="text">The System.String to measure.</param>
/// <param name="font">The System.Drawing.Font that will be used to measure text.</param>
/// <param name="rect">The System.Drawing.Rectangle that defines the bounds for text layout.</param>
/// <param name="options">The OpenTK.Graphics.TextPrinterOptions that will be used to measure text.</param>
/// <param name="alignment">The OpenTK.Graphics.TextAlignment that will be used to measure text.</param>
/// <param name="direction">The OpenTK.Graphics.TextDirection that will be used to measure text.</param>
/// <returns>An OpenTK.Graphics.TextExtents instance that contains the results of the measurement.</returns>
public TextExtents Measure(string text, Font font, RectangleF rect, TextPrinterOptions options, TextAlignment alignment, TextDirection direction)
{
if (disposed)
throw new ObjectDisposedException(this.GetType().ToString());
if (!ValidateParameters(text, font, rect))
return TextExtents.Empty;
TextBlock block = new TextBlock(text, font, rect, options, alignment, direction);
return Rasterizer.MeasureText(ref block);
}
#endregion
#region Clear
public void Clear()
{
if (disposed)
throw new ObjectDisposedException(this.GetType().ToString());
TextOutput.Clear();
Rasterizer.Clear();
}
#endregion
#region Begin
/// <summary>
/// Sets up a resolution-dependent orthographic projection.
/// </summary>
public void Begin()
{
TextOutput.Begin();
}
#endregion
#region Begin
/// <summary>
/// Restores the projection and modelview matrices to their previous state.
/// </summary>
public void End()
{
TextOutput.End();
}
#endregion
#region Obsolete
[Obsolete("Use TextPrinter.Print instead")]
public void Draw(TextHandle handle)
{
Print(handle.Text, handle.GdiPFont, Color.White);
}
[Obsolete("Use TextPrinter.Print instead")]
public void Draw(string text, TextureFont font)
{
Print(text, font.font, Color.White);
}
[Obsolete("Use TextPrinter.Print instead")]
public void Prepare(string text, TextureFont font, out TextHandle handle)
{
handle = new TextHandle(text, font.font);
}
#endregion
#endregion
#region Private Members
IGlyphRasterizer Rasterizer
{
get
{
if (glyph_rasterizer == null)
glyph_rasterizer = new GdiPlusGlyphRasterizer();
return glyph_rasterizer;
}
}
ITextOutputProvider TextOutput
{
get
{
if (text_output == null)
text_output = GL1TextOutputProvider.Create(text_quality);
return text_output;
}
}
#endregion
#region Static Members
static bool ValidateParameters(string text, Font font, RectangleF rect)
{
if (String.IsNullOrEmpty(text))
return false;
if (font == null)
throw new ArgumentNullException("font");
if (rect.Width < 0 || rect.Height < 0)
throw new ArgumentOutOfRangeException("rect");
return true;
}
#endregion
#region IDisposable Members
/// <summary>
/// Frees the resources consumed by this TextPrinter object.
/// </summary>
public void Dispose()
{
if (!disposed)
{
TextOutput.Dispose();
disposed = true;
}
}
#endregion
}
}

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Source/Utilities/Graphics/TextPrinterOptions.cs
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using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK.Graphics
{
/// <summary>
/// Defines available options for the TextPrinter.
/// </summary>
[Flags]
public enum TextPrinterOptions
{
/// <summary>The TextPrinter will use default printing options.</summary>
Default = 0x0000,
/// <summary>The TextPrinter will not cache text blocks as they are measured or printed.</summary>
NoCache = 0x0001,
}
}

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Source/Utilities/Graphics/TextQuality.cs
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using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK.Graphics
{
/// <summary>
/// Defines available quality levels for text printing.
/// </summary>
public enum TextQuality
{
/// <summary>Use the default quality, as specified by the operating system.</summary>
Default = 0,
/// <summary>Use fast, low quality text (typically non-antialiased) .</summary>
Low,
/// <summary>Use medium quality text (typically grayscale antialiased).</summary>
Medium,
/// <summary>Use slow, high quality text (typically subpixel antialiased).</summary>
High
}
}

320
Source/Utilities/Graphics/Texture2D.cs
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#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;
using System.Diagnostics;
namespace OpenTK.Graphics
{
abstract class Texture2D : IGraphicsResource, IEquatable<Texture2D>
{
#region Fields
IGraphicsContext 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.Bgra,
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, OpenTK.Graphics.PixelFormat.Bgra, PixelType.UnsignedByte, region.Data);
return region;
}
#endregion
#region Equals
public override bool Equals(object obj)
{
if (obj is Texture2D)
return this.Equals((Texture2D)obj);
return false;
}
#endregion
#region public override int GetHashCode()
public override int GetHashCode()
{
return (this as IGraphicsResource).Id;
}
#endregion
#region public overrid string ToString()
public override string ToString()
{
return String.Format("Texture2D #{0} ({1}x{2}, {3})",
(this as IGraphicsResource).Id.ToString(),
Width.ToString(),
Height.ToString(),
InternalFormat.ToString());
}
#endregion
#endregion
#region Protected Members
#region InternalFormat
protected abstract PixelInternalFormat InternalFormat { get; }
#endregion
#endregion
#region Private Members
int CreateTexture(int width, int height)
{
int id = GL.GenTexture();
if (id == 0)
throw new GraphicsResourceException(String.Format("Texture creation failed, (Error: {0})", GL.GetError()));
SetDefaultTextureParameters(id);
GL.TexImage2D(TextureTarget.Texture2D, 0, InternalFormat, Width, Height, 0,
OpenTK.Graphics.PixelFormat.Rgba, PixelType.UnsignedByte, IntPtr.Zero);
return id;
}
void SetDefaultTextureParameters(int id)
{
// 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);
}
}
#endregion
#region IGraphicsResource Members
#region IGraphicsResource.Context
IGraphicsContext IGraphicsResource.Context { get { return context; } }
#endregion
#region IGraphicsResource.Id
int IGraphicsResource.Id
{
get
{
if (id == 0)
{
GraphicsContext.Assert();
context = GraphicsContext.CurrentContext;
id = CreateTexture(Width, Height);
}
return id;
}
}
#endregion
#endregion
#region IEquatable<Texture2D> Members
public bool Equals(Texture2D other)
{
return (this as IGraphicsResource).Id == (other as IGraphicsResource).Id;
}
#endregion
#region IDisposable Members
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
void Dispose(bool manual)
{
if (!disposed)
{
if (manual)
{
GL.DeleteTexture(id);
}
else
{
Debug.Print("[Warning] {0} leaked.", this);
}
disposed = true;
}
}
~Texture2D()
{
Dispose(false);
}
#endregion
}
}

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Source/Utilities/Graphics/TextureRegion2D.cs
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#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;
namespace OpenTK.Graphics
{
abstract class TextureRegion2D
{
Rectangle rectangle;
public Rectangle Rectangle { get { return rectangle; } protected set { rectangle = value; } }
}
/// <summary>
/// Holds part or the whole of a 2d OpenGL texture.
/// </summary>
class TextureRegion2D<T> : TextureRegion2D where T : struct
{
#region Fields
T[,] data;
#endregion
#region Constructors
internal TextureRegion2D(Rectangle rect)
{
data = new T[rect.Width, rect.Height];
Rectangle = rect;
}
#endregion
#region Public Members
public T this[int x, int y]
{
get { return data[x, y]; }
set { data[x, y] = value; }
}
#endregion
#region Internal Members
internal T[,] Data { get { return data; } }
#endregion
}
}

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Source/Utilities/IPackable.cs
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#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK
{
/// <summary>
/// Represents an item that can be packed with the TexturePacker.
/// </summary>
/// <typeparam name="T">The type of the packable item.</typeparam>
interface IPackable<T> : IEquatable<T>
{
int Width { get; }
int Height { get; }
}
}

17
Source/Utilities/IPoolable.cs
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@ -1,17 +0,0 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK
{
interface IPoolable : IDisposable
{
void OnAcquire();
void OnRelease();
}
interface IPoolable<T> : IPoolable where T : IPoolable<T>, new()
{
ObjectPool<T> Owner { get; set; }
}
}

42
Source/Utilities/ObjectPool.cs
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using System;
using System.Collections.Generic;
using System.Text;
namespace OpenTK
{
class ObjectPool<T> where T : IPoolable<T>, new()
{
Queue<T> pool = new Queue<T>();
public ObjectPool()
{ }
public T Acquire()
{
T item;
if (pool.Count > 0)
{
item = pool.Dequeue();
item.OnAcquire();
}
else
{
item = new T();
item.Owner = this;
item.OnAcquire();
}
return item;
}
public void Release(T item)
{
if (item == null)
throw new ArgumentNullException("item");
item.OnRelease();
pool.Enqueue(item);
}
}
}

2
Source/Utilities/OpenTK.Utilities.dll.config
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<configuration>
</configuration>

33
Source/Utilities/Properties/AssemblyInfo.cs
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using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("The Open Toolkit Library Utilities")]
[assembly: AssemblyDescription("Open source game development toolkit for .Net/Mono.")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("The Open Toolkit Library")]
[assembly: AssemblyCopyright("Copyright © 2006-2009 the Open Toolkit team")]
[assembly: AssemblyTrademark("OpenTK")]
[assembly: AssemblyCulture("")]
// Setting ComVisible to false makes the types in this assembly not visible
// to COM components. If you need to access a type in this assembly from
// COM, set the ComVisible attribute to true on that type.
[assembly: ComVisible(false)]
// The following GUID is for the ID of the typelib if this project is exposed to COM
[assembly: Guid("3e1a89c5-9405-4061-8cbe-7e5efe870731")]
// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
[assembly: AssemblyVersion("0.9.9.2")]
[assembly: AssemblyFileVersion("0.9.9.2")]

195
Source/Utilities/TexturePacker.cs
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#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using System.Drawing.Imaging;
namespace OpenTK
{
class TexturePacker<T> where T : IPackable<T>
{
Node root;
#region --- Constructors ---
public TexturePacker(int width, int height)
{
if (width <= 0)
throw new ArgumentOutOfRangeException("width", width, "Must be greater than zero.");
if (height <= 0)
throw new ArgumentOutOfRangeException("height", height, "Must be greater than zero.");
root = new Node();
root.Rect = new Rectangle(0, 0, width, width);
}
#endregion
#region --- Public Methods ---
#region public Rectangle Add(T item)
// Packs the given item into the free space of the TexturePacker. Returns the Rectangle of the packed item.
public void Add(T item, out Rectangle rect)
{
if (item.Width > root.Rect.Width || item.Height > root.Rect.Height)
throw new InvalidOperationException("The item is too large for this TexturePacker");
Node node;
//if (!items.ContainsKey(item))
{
node = root.Insert(item);
// Tree is full and insertion failed:
if (node == null)
throw new TexturePackerFullException();
//items.Add(item, node);
rect = node.Rect;
}
//throw new ArgumentException("The item already exists in the TexturePacker.", "item");
}
#endregion
#region public void Clear()
/// <summary>
/// Discards all packed items.
/// </summary>
public void Clear()
{
//items.Clear();
root.Clear();
}
#endregion
#region public void ChangeSize(int new_width, int new_height)
/// <summary>
/// Changes the dimensions of the TexturePacker surface.
/// </summary>
/// <param name="new_width">The new width of the TexturePacker surface.</param>
/// <param name="new_height">The new height of the TexturePacker surface.</param>
/// <remarks>Changing the size of the TexturePacker surface will implicitly call TexturePacker.Clear().</remarks>
/// <seealso cref="Clear"/>
public void ChangeSize(int new_width, int new_height)
{
throw new NotImplementedException();
}
#endregion
#endregion
#region Node
class Node
{
public Node()
{
}
Node left, right;
Rectangle rect;
int use_count;
public Rectangle Rect { get { return rect; } set { rect = value; } }
public Node Left { get { return left; } set { left = value; } }
public Node Right { get { return right; } set { right = value; } }
#region --- Constructor ---
public bool Leaf
{
get { return left == null && right == null; }
}
#endregion
#region public Node Insert(T item)
public Node Insert(T item)
{
if (!this.Leaf)
{
// Recurse towards left child, and if that fails, towards the right.
Node new_node = left.Insert(item);
return new_node ?? right.Insert(item);
}
else
{
// We have recursed to a leaf.
// If it is not empty go back.
if (use_count != 0)
return null;
// If this leaf is too small go back.
if (rect.Width < item.Width || rect.Height < item.Height)
return null;
// If this leaf is the right size, insert here.
if (rect.Width == item.Width && rect.Height == item.Height)
{
use_count = 1;
return this;
}
// This leaf is too large, split it up. We'll decide which way to split
// by checking the width and height difference between this rectangle and
// out item's bounding box. If the width difference is larger, we'll split
// horizontaly, else verticaly.
left = new Node();
right = new Node();
int dw = this.rect.Width - item.Width + 1;
int dh = this.rect.Height - item.Height + 1;
if (dw > dh)
{
left.rect = new Rectangle(rect.Left, rect.Top, item.Width, rect.Height);
right.rect = new Rectangle(rect.Left + item.Width, rect.Top, rect.Width - item.Width, rect.Height);
}
else
{
left.rect = new Rectangle(rect.Left, rect.Top, rect.Width, item.Height);
right.rect = new Rectangle(rect.Left, rect.Top + item.Height, rect.Width, rect.Height - item.Height);
}
return left.Insert(item);
}
}
#endregion
#region public void Clear()
public void Clear()
{
if (left != null)
left.Clear();
if (right != null)
right.Clear();
left = right = null;
}
#endregion
}
#endregion
}
class TexturePackerFullException : Exception
{
public TexturePackerFullException() : base("There is not enough space to add this item. Consider calling the Clear() method.") { }
}
}