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Updated examples to use the new TextPrinter.

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the_fiddler 2008-11-25 17:25:51 +00:00
parent 5d1eda9289
commit e1beaf3744
5 changed files with 361 additions and 365 deletions
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593
Source/Examples/OpenGL/FrameBufferObject.cs
View file

@ -1,298 +1,299 @@
#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.Diagnostics;
using OpenTK;
using OpenTK.Input;
using OpenTK.Math;
using OpenTK.Graphics;
using OpenTK.Graphics.OpenGL;
namespace Examples.Tutorial
{
[Example("Simple FrameBuffer Object.", ExampleCategory.OpenGL)]
public class SimpleFBO : GameWindow
{
public SimpleFBO()
: base(800, 600)
{
}
TextureFont sans = new TextureFont(new System.Drawing.Font(System.Drawing.FontFamily.GenericSansSerif, 14.0f));
ITextPrinter text = new TextPrinter();
uint ColorTexture;
uint DepthTexture;
uint FBOHandle;
const int TextureSize = 512;
#region Randoms
Random rnd = new Random();
public const float scale = 3f;
/// <summary>Returns a random Float in the range [-0.5*scale..+0.5*scale]</summary>
public float GetRandom()
{
return (float)(rnd.NextDouble() - 0.5) * scale;
}
/// <summary>Returns a random Float in the range [0..1]</summary>
public float GetRandom0to1()
{
return (float)rnd.NextDouble();
}
#endregion Randoms
public override void OnLoad(EventArgs e)
{
GL.Enable(EnableCap.DepthTest);
GL.ClearDepth(1.0f);
GL.DepthFunc(DepthFunction.Lequal);
GL.Disable(EnableCap.CullFace);
GL.PolygonMode(MaterialFace.Back, PolygonMode.Line);
// Create Color Tex
GL.GenTextures(1, out ColorTexture);
GL.BindTexture(TextureTarget.Texture2D, ColorTexture);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba8, TextureSize, TextureSize, 0, PixelFormat.Rgba, PixelType.UnsignedByte, IntPtr.Zero);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToBorder);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToBorder);
// GL.Ext.GenerateMipmap( GenerateMipmapTarget.Texture2D );
// Create Depth Tex
GL.GenTextures(1, out DepthTexture);
GL.BindTexture(TextureTarget.Texture2D, DepthTexture);
GL.TexImage2D(TextureTarget.Texture2D, 0, (PixelInternalFormat)All.DepthComponent32, TextureSize, TextureSize, 0, PixelFormat.DepthComponent, PixelType.UnsignedInt, IntPtr.Zero);
// things go horribly wrong if DepthComponent's Bitcount does not match the main Framebuffer's Depth
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToBorder);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToBorder);
// GL.Ext.GenerateMipmap( GenerateMipmapTarget.Texture2D );
// Create a FBO and attach the textures
GL.Ext.GenFramebuffers(1, out FBOHandle);
GL.Ext.BindFramebuffer(FramebufferTarget.FramebufferExt, FBOHandle);
GL.Ext.FramebufferTexture2D(FramebufferTarget.FramebufferExt, FramebufferAttachment.ColorAttachment0Ext, TextureTarget.Texture2D, ColorTexture, 0);
GL.Ext.FramebufferTexture2D(FramebufferTarget.FramebufferExt, FramebufferAttachment.DepthAttachmentExt, TextureTarget.Texture2D, DepthTexture, 0);
#region Test for Error
switch (GL.Ext.CheckFramebufferStatus(FramebufferTarget.FramebufferExt))
{
case FramebufferErrorCode.FramebufferCompleteExt:
{
Console.WriteLine("FBO: The framebuffer is complete and valid for rendering.");
break;
}
case FramebufferErrorCode.FramebufferIncompleteAttachmentExt:
{
Console.WriteLine("FBO: One or more attachment points are not framebuffer attachment complete. This could mean there’s no texture attached or the format isn’t renderable. For color textures this means the base format must be RGB or RGBA and for depth textures it must be a DEPTH_COMPONENT format. Other causes of this error are that the width or height is zero or the z-offset is out of range in case of render to volume.");
break;
}
case FramebufferErrorCode.FramebufferIncompleteMissingAttachmentExt:
{
Console.WriteLine("FBO: There are no attachments.");
break;
}
/* case FramebufferErrorCode.GL_FRAMEBUFFER_INCOMPLETE_DUPLICATE_ATTACHMENT_EXT:
{
Console.WriteLine("FBO: An object has been attached to more than one attachment point.");
break;
}*/
case FramebufferErrorCode.FramebufferIncompleteDimensionsExt:
{
Console.WriteLine("FBO: Attachments are of different size. All attachments must have the same width and height.");
break;
}
case FramebufferErrorCode.FramebufferIncompleteFormatsExt:
{
Console.WriteLine("FBO: The color attachments have different format. All color attachments must have the same format.");
break;
}
case FramebufferErrorCode.FramebufferIncompleteDrawBufferExt:
{
Console.WriteLine("FBO: An attachment point referenced by GL.DrawBuffers() doesn’t have an attachment.");
break;
}
case FramebufferErrorCode.FramebufferIncompleteReadBufferExt:
{
Console.WriteLine("FBO: The attachment point referenced by GL.ReadBuffers() doesn’t have an attachment.");
break;
}
case FramebufferErrorCode.FramebufferUnsupportedExt:
{
Console.WriteLine("FBO: This particular FBO configuration is not supported by the implementation.");
break;
}
default:
{
Console.WriteLine("FBO: Status unknown. (yes, this is really bad.)");
break;
}
}
// using FBO might have changed states, e.g. the FBO might not support stereoscopic views or double buffering
int[] queryinfo = new int[6];
GL.GetInteger(GetPName.MaxColorAttachmentsExt, out queryinfo[0]);
GL.GetInteger(GetPName.AuxBuffers, out queryinfo[1]);
GL.GetInteger(GetPName.MaxDrawBuffers, out queryinfo[2]);
GL.GetInteger(GetPName.Stereo, out queryinfo[3]);
GL.GetInteger(GetPName.Samples, out queryinfo[4]);
GL.GetInteger(GetPName.Doublebuffer, out queryinfo[5]);
Console.WriteLine("max. ColorBuffers: " + queryinfo[0] + " max. AuxBuffers: " + queryinfo[1] + " max. DrawBuffers: " + queryinfo[2] +
"\nStereo: " + queryinfo[3] + " Samples: " + queryinfo[4] + " DoubleBuffer: " + queryinfo[5]);
Console.WriteLine("Last GL Error: " + GL.GetError());
#endregion Test for Error
GL.PushAttrib(AttribMask.ViewportBit);
{
GL.Viewport(0, 0, TextureSize, TextureSize);
// clear the screen in red, to make it very obvious what the clear affected. only the FBO, not the real framebuffer
GL.ClearColor(1f, 0f, 0f, 0f);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
// smack 50 random triangles into the FBO's textures
GL.Begin(BeginMode.Triangles);
{
for (int i = 0; i < 50; i++)
{
GL.Color3(GetRandom0to1(), GetRandom0to1(), GetRandom0to1());
GL.Vertex3(GetRandom(), GetRandom(), GetRandom());
GL.Color3(GetRandom0to1(), GetRandom0to1(), GetRandom0to1());
GL.Vertex3(GetRandom(), GetRandom(), GetRandom());
GL.Color3(GetRandom0to1(), GetRandom0to1(), GetRandom0to1());
GL.Vertex3(GetRandom(), GetRandom(), GetRandom());
}
}
GL.End();
}
GL.PopAttrib();
GL.Ext.BindFramebuffer(FramebufferTarget.FramebufferExt, 0); // disable rendering into the FBO
GL.ClearColor(.1f, .2f, .3f, 0f);
GL.Color3(1f, 1f, 1f);
GL.Enable(EnableCap.Texture2D); // enable Texture Mapping
GL.BindTexture(TextureTarget.Texture2D, 0); // bind default texture
}
public override void OnUnload(EventArgs e)
{
// Clean up what we allocated before exiting
GL.DeleteTextures(1, ref ColorTexture);
GL.DeleteTextures(1, ref DepthTexture);
GL.Ext.DeleteFramebuffers(1, ref FBOHandle);
base.OnUnload(e);
}
protected override void OnResize(OpenTK.Platform.ResizeEventArgs e)
{
GL.Viewport(0, 0, Width, Height);
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
Glu.Perspective(60.0, Width / (double)Height, 1.0, 5.0);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
Glu.LookAt(0.0, 0.0, 3.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
base.OnResize(e);
}
public override void OnUpdateFrame(UpdateFrameEventArgs e)
{
base.OnUpdateFrame(e);
if (Keyboard[Key.Space])
{
ErrorCode err = GL.GetError();
Console.WriteLine(err + " " + Glu.ErrorString((GluErrorCode)err));
}
if (Keyboard[Key.Escape])
this.Exit();
}
public override void OnRenderFrame(RenderFrameEventArgs e)
{
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
#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.Diagnostics;
using System.Drawing;
using OpenTK;
using OpenTK.Input;
using OpenTK.Math;
using OpenTK.Graphics;
using OpenTK.Graphics.OpenGL;
namespace Examples.Tutorial
{
[Example("Simple FrameBuffer Object.", ExampleCategory.OpenGL)]
public class SimpleFBO : GameWindow
{
public SimpleFBO()
: base(800, 600)
{
}
Font sans = new Font(System.Drawing.FontFamily.GenericSansSerif, 16.0f);
ITextPrinter text = new TextPrinter();
uint ColorTexture;
uint DepthTexture;
uint FBOHandle;
const int TextureSize = 512;
#region Randoms
Random rnd = new Random();
public const float scale = 3f;
/// <summary>Returns a random Float in the range [-0.5*scale..+0.5*scale]</summary>
public float GetRandom()
{
return (float)(rnd.NextDouble() - 0.5) * scale;
}
/// <summary>Returns a random Float in the range [0..1]</summary>
public float GetRandom0to1()
{
return (float)rnd.NextDouble();
}
#endregion Randoms
public override void OnLoad(EventArgs e)
{
GL.Enable(EnableCap.DepthTest);
GL.ClearDepth(1.0f);
GL.DepthFunc(DepthFunction.Lequal);
GL.Disable(EnableCap.CullFace);
GL.PolygonMode(MaterialFace.Back, PolygonMode.Line);
// Create Color Tex
GL.GenTextures(1, out ColorTexture);
GL.BindTexture(TextureTarget.Texture2D, ColorTexture);
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba8, TextureSize, TextureSize, 0, PixelFormat.Rgba, PixelType.UnsignedByte, IntPtr.Zero);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToBorder);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToBorder);
// GL.Ext.GenerateMipmap( GenerateMipmapTarget.Texture2D );
// Create Depth Tex
GL.GenTextures(1, out DepthTexture);
GL.BindTexture(TextureTarget.Texture2D, DepthTexture);
GL.TexImage2D(TextureTarget.Texture2D, 0, (PixelInternalFormat)All.DepthComponent32, TextureSize, TextureSize, 0, PixelFormat.DepthComponent, PixelType.UnsignedInt, IntPtr.Zero);
// things go horribly wrong if DepthComponent's Bitcount does not match the main Framebuffer's Depth
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToBorder);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToBorder);
// GL.Ext.GenerateMipmap( GenerateMipmapTarget.Texture2D );
// Create a FBO and attach the textures
GL.Ext.GenFramebuffers(1, out FBOHandle);
GL.Ext.BindFramebuffer(FramebufferTarget.FramebufferExt, FBOHandle);
GL.Ext.FramebufferTexture2D(FramebufferTarget.FramebufferExt, FramebufferAttachment.ColorAttachment0Ext, TextureTarget.Texture2D, ColorTexture, 0);
GL.Ext.FramebufferTexture2D(FramebufferTarget.FramebufferExt, FramebufferAttachment.DepthAttachmentExt, TextureTarget.Texture2D, DepthTexture, 0);
#region Test for Error
switch (GL.Ext.CheckFramebufferStatus(FramebufferTarget.FramebufferExt))
{
case FramebufferErrorCode.FramebufferCompleteExt:
{
Console.WriteLine("FBO: The framebuffer is complete and valid for rendering.");
break;
}
case FramebufferErrorCode.FramebufferIncompleteAttachmentExt:
{
Console.WriteLine("FBO: One or more attachment points are not framebuffer attachment complete. This could mean there’s no texture attached or the format isn’t renderable. For color textures this means the base format must be RGB or RGBA and for depth textures it must be a DEPTH_COMPONENT format. Other causes of this error are that the width or height is zero or the z-offset is out of range in case of render to volume.");
break;
}
case FramebufferErrorCode.FramebufferIncompleteMissingAttachmentExt:
{
Console.WriteLine("FBO: There are no attachments.");
break;
}
/* case FramebufferErrorCode.GL_FRAMEBUFFER_INCOMPLETE_DUPLICATE_ATTACHMENT_EXT:
{
Console.WriteLine("FBO: An object has been attached to more than one attachment point.");
break;
}*/
case FramebufferErrorCode.FramebufferIncompleteDimensionsExt:
{
Console.WriteLine("FBO: Attachments are of different size. All attachments must have the same width and height.");
break;
}
case FramebufferErrorCode.FramebufferIncompleteFormatsExt:
{
Console.WriteLine("FBO: The color attachments have different format. All color attachments must have the same format.");
break;
}
case FramebufferErrorCode.FramebufferIncompleteDrawBufferExt:
{
Console.WriteLine("FBO: An attachment point referenced by GL.DrawBuffers() doesn’t have an attachment.");
break;
}
case FramebufferErrorCode.FramebufferIncompleteReadBufferExt:
{
Console.WriteLine("FBO: The attachment point referenced by GL.ReadBuffers() doesn’t have an attachment.");
break;
}
case FramebufferErrorCode.FramebufferUnsupportedExt:
{
Console.WriteLine("FBO: This particular FBO configuration is not supported by the implementation.");
break;
}
default:
{
Console.WriteLine("FBO: Status unknown. (yes, this is really bad.)");
break;
}
}
// using FBO might have changed states, e.g. the FBO might not support stereoscopic views or double buffering
int[] queryinfo = new int[6];
GL.GetInteger(GetPName.MaxColorAttachmentsExt, out queryinfo[0]);
GL.GetInteger(GetPName.AuxBuffers, out queryinfo[1]);
GL.GetInteger(GetPName.MaxDrawBuffers, out queryinfo[2]);
GL.GetInteger(GetPName.Stereo, out queryinfo[3]);
GL.GetInteger(GetPName.Samples, out queryinfo[4]);
GL.GetInteger(GetPName.Doublebuffer, out queryinfo[5]);
Console.WriteLine("max. ColorBuffers: " + queryinfo[0] + " max. AuxBuffers: " + queryinfo[1] + " max. DrawBuffers: " + queryinfo[2] +
"\nStereo: " + queryinfo[3] + " Samples: " + queryinfo[4] + " DoubleBuffer: " + queryinfo[5]);
Console.WriteLine("Last GL Error: " + GL.GetError());
#endregion Test for Error
GL.PushAttrib(AttribMask.ViewportBit);
{
GL.Viewport(0, 0, TextureSize, TextureSize);
// clear the screen in red, to make it very obvious what the clear affected. only the FBO, not the real framebuffer
GL.ClearColor(1f, 0f, 0f, 0f);
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
// smack 50 random triangles into the FBO's textures
GL.Begin(BeginMode.Triangles);
{
for (int i = 0; i < 50; i++)
{
GL.Color3(GetRandom0to1(), GetRandom0to1(), GetRandom0to1());
GL.Vertex3(GetRandom(), GetRandom(), GetRandom());
GL.Color3(GetRandom0to1(), GetRandom0to1(), GetRandom0to1());
GL.Vertex3(GetRandom(), GetRandom(), GetRandom());
GL.Color3(GetRandom0to1(), GetRandom0to1(), GetRandom0to1());
GL.Vertex3(GetRandom(), GetRandom(), GetRandom());
}
}
GL.End();
}
GL.PopAttrib();
GL.Ext.BindFramebuffer(FramebufferTarget.FramebufferExt, 0); // disable rendering into the FBO
GL.ClearColor(.1f, .2f, .3f, 0f);
GL.Color3(1f, 1f, 1f);
GL.Enable(EnableCap.Texture2D); // enable Texture Mapping
GL.BindTexture(TextureTarget.Texture2D, 0); // bind default texture
}
public override void OnUnload(EventArgs e)
{
// Clean up what we allocated before exiting
GL.DeleteTextures(1, ref ColorTexture);
GL.DeleteTextures(1, ref DepthTexture);
GL.Ext.DeleteFramebuffers(1, ref FBOHandle);
base.OnUnload(e);
}
protected override void OnResize(OpenTK.Platform.ResizeEventArgs e)
{
GL.Viewport(0, 0, Width, Height);
GL.MatrixMode(MatrixMode.Projection);
GL.LoadIdentity();
Glu.Perspective(60.0, Width / (double)Height, 1.0, 5.0);
GL.MatrixMode(MatrixMode.Modelview);
GL.LoadIdentity();
Glu.LookAt(0.0, 0.0, 3.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
base.OnResize(e);
}
public override void OnUpdateFrame(UpdateFrameEventArgs e)
{
base.OnUpdateFrame(e);
if (Keyboard[Key.Space])
{
ErrorCode err = GL.GetError();
Console.WriteLine(err + " " + Glu.ErrorString((GluErrorCode)err));
}
if (Keyboard[Key.Escape])
this.Exit();
}
public override void OnRenderFrame(RenderFrameEventArgs e)
{
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
text.Begin();
text.Draw((1.0 / e.Time).ToString("F2"), sans);
text.End();
GL.PushMatrix();
{
// Draw the Color Texture
GL.Translate(-1.1f, 0f, 0f);
GL.BindTexture(TextureTarget.Texture2D, ColorTexture);
GL.Begin(BeginMode.Quads);
{
GL.TexCoord2(0f, 1f);
GL.Vertex2(-1.0f, 1.0f);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex2(-1.0f, -1.0f);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex2(1.0f, -1.0f);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex2(1.0f, 1.0f);
}
GL.End();
// Draw the Depth Texture
GL.Translate(+2.2f, 0f, 0f);
GL.BindTexture(TextureTarget.Texture2D, DepthTexture);
GL.Begin(BeginMode.Quads);
{
GL.TexCoord2(0f, 1f);
GL.Vertex2(-1.0f, 1.0f);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex2(-1.0f, -1.0f);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex2(1.0f, -1.0f);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex2(1.0f, 1.0f);
}
GL.End();
}
GL.PopMatrix();
this.SwapBuffers();
}
#region public static void Main()
/// <summary>
/// Entry point of this example.
/// </summary>
[STAThread]
public static void Main()
{
using (SimpleFBO example = new SimpleFBO())
{
Utilities.SetWindowTitle(example);
example.Run(30.0, 0.0);
}
}
#endregion
}
text.Print((1.0 / e.Time).ToString("F2"), sans);
text.End();
GL.PushMatrix();
{
// Draw the Color Texture
GL.Translate(-1.1f, 0f, 0f);
GL.BindTexture(TextureTarget.Texture2D, ColorTexture);
GL.Begin(BeginMode.Quads);
{
GL.TexCoord2(0f, 1f);
GL.Vertex2(-1.0f, 1.0f);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex2(-1.0f, -1.0f);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex2(1.0f, -1.0f);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex2(1.0f, 1.0f);
}
GL.End();
// Draw the Depth Texture
GL.Translate(+2.2f, 0f, 0f);
GL.BindTexture(TextureTarget.Texture2D, DepthTexture);
GL.Begin(BeginMode.Quads);
{
GL.TexCoord2(0f, 1f);
GL.Vertex2(-1.0f, 1.0f);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex2(-1.0f, -1.0f);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex2(1.0f, -1.0f);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex2(1.0f, 1.0f);
}
GL.End();
}
GL.PopMatrix();
this.SwapBuffers();
}
#region public static void Main()
/// <summary>
/// Entry point of this example.
/// </summary>
[STAThread]
public static void Main()
{
using (SimpleFBO example = new SimpleFBO())
{
Utilities.SetWindowTitle(example);
example.Run(30.0, 0.0);
}
}
#endregion
}
}

4
Source/Examples/OpenGL/JuliaSetFractal.cs
View file

@ -55,7 +55,7 @@ namespace Examples.Tutorial
// Text drawing (for fps)
TextPrinter printer = new TextPrinter();
TextureFont font = new TextureFont(new Font(FontFamily.GenericSansSerif, 14.0f));
Font font = new Font(FontFamily.GenericSansSerif, 16.0f);
#endregion private Fields
@ -290,7 +290,7 @@ namespace Examples.Tutorial
GL.UseProgram(0);
printer.Begin();
GL.Color3(Color.PaleGoldenrod);
printer.Draw((1 / e.Time).ToString("F2"), font);
printer.Print((1 / e.Time).ToString("F2"), font, TextPrinterOptions.NoCache);
printer.End();
SwapBuffers();

10
Source/Examples/Tests/GameWindowStates.cs
View file

@ -20,7 +20,7 @@ namespace Examples.Tests
[Example("GameWindow states", ExampleCategory.Test)]
public class GameWindowStates : GameWindow
{
TextureFont font = new TextureFont(new Font(FontFamily.GenericSansSerif, 16.0f));
Font font = new Font(FontFamily.GenericSansSerif, 16.0f);
TextPrinter printer = new TextPrinter();
#region GetNext and GetPrevious methods for enums.
@ -118,12 +118,12 @@ namespace Examples.Tests
printer.Begin();
printer.Draw("Instructions:", font); GL.Translate(0, font.Height, 0);
printer.Draw(String.Format("1 - cycle through window styles (current: {0}).", this.WindowState), font);
printer.Print("Instructions:", font); GL.Translate(0, font.Height, 0);
printer.Print(String.Format("1 - cycle through window styles (current: {0}).", this.WindowState), font);
GL.Translate(0, font.Height, 0);
printer.Draw(String.Format("2 - cycle through window borders (current: {0}).", this.WindowBorder), font);
printer.Print(String.Format("2 - cycle through window borders (current: {0}).", this.WindowBorder), font);
GL.Translate(0, font.Height, 0);
printer.Draw(String.Format("3 - toggle fullscreen (current: {0}).",
printer.Print(String.Format("3 - toggle fullscreen (current: {0}).",
this.WindowState == WindowState.Fullscreen ? "enabled" : "disabled"), font);

88
Source/Examples/Tutorial/Fonts.cs
View file

@ -33,52 +33,50 @@ namespace Examples.Tutorial
ITextPrinter printer = new TextPrinter();
const string text = "Hello, world!";
TextHandle[] handles; // Used to cache the strings we want to print.
// Load some different TextureFont sizes to compare their quality.
// You'll never need to load that many fonts in your application,
// 3 or 4 should be more than enough.
TextureFont[] fonts = new TextureFont[]
Font[] fonts = new Font[]
{
new TextureFont(new Font(FontFamily.GenericSerif, 8.0f)),
new TextureFont(new Font(FontFamily.GenericSerif, 10.0f)),
new TextureFont(new Font(FontFamily.GenericSerif, 12.0f)),
new TextureFont(new Font(FontFamily.GenericSerif, 14.0f)),
new Font(FontFamily.GenericSerif, 8.0f),
new Font(FontFamily.GenericSerif, 10.0f),
new Font(FontFamily.GenericSerif, 12.0f),
new Font(FontFamily.GenericSerif, 14.0f),
new TextureFont(new Font(FontFamily.GenericSerif, 16.0f)),
new TextureFont(new Font(FontFamily.GenericSerif, 18.0f)),
new TextureFont(new Font(FontFamily.GenericSerif, 20.0f)),
new TextureFont(new Font(FontFamily.GenericSerif, 22.0f)),
new Font(FontFamily.GenericSerif, 16.0f),
new Font(FontFamily.GenericSerif, 18.0f),
new Font(FontFamily.GenericSerif, 20.0f),
new Font(FontFamily.GenericSerif, 22.0f),
new TextureFont(new Font(FontFamily.GenericSerif, 24.0f, FontStyle.Bold)),
new TextureFont(new Font(FontFamily.GenericSerif, 26.0f)),
new TextureFont(new Font(FontFamily.GenericSerif, 28.0f)),
new TextureFont(new Font(FontFamily.GenericSerif, 30.0f)),
new Font(FontFamily.GenericSerif, 24.0f, FontStyle.Bold),
new Font(FontFamily.GenericSerif, 26.0f),
new Font(FontFamily.GenericSerif, 28.0f),
new Font(FontFamily.GenericSerif, 30.0f),
new TextureFont(new Font(FontFamily.GenericSerif, 32.0f, FontStyle.Italic)),
new TextureFont(new Font(FontFamily.GenericSerif, 34.0f)),
new TextureFont(new Font(FontFamily.GenericSerif, 36.0f)),
new TextureFont(new Font(FontFamily.GenericSerif, 38.0f)),
new Font(FontFamily.GenericSerif, 32.0f, FontStyle.Italic),
new Font(FontFamily.GenericSerif, 34.0f),
new Font(FontFamily.GenericSerif, 36.0f),
new Font(FontFamily.GenericSerif, 38.0f),
new TextureFont(new Font(FontFamily.GenericSansSerif, 8.0f)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 10.0f)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 12.0f)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 14.0f)),
new Font(FontFamily.GenericSansSerif, 8.0f),
new Font(FontFamily.GenericSansSerif, 10.0f),
new Font(FontFamily.GenericSansSerif, 12.0f),
new Font(FontFamily.GenericSansSerif, 14.0f),
new TextureFont(new Font(FontFamily.GenericSansSerif, 16.0f)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 18.0f)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 20.0f)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 22.0f)),
new Font(FontFamily.GenericSansSerif, 16.0f),
new Font(FontFamily.GenericSansSerif, 18.0f),
new Font(FontFamily.GenericSansSerif, 20.0f),
new Font(FontFamily.GenericSansSerif, 22.0f),
new TextureFont(new Font(FontFamily.GenericSansSerif, 24.0f, FontStyle.Bold)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 26.0f)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 28.0f)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 30.0f)),
new Font(FontFamily.GenericSansSerif, 24.0f, FontStyle.Bold),
new Font(FontFamily.GenericSansSerif, 26.0f),
new Font(FontFamily.GenericSansSerif, 28.0f),
new Font(FontFamily.GenericSansSerif, 30.0f),
new TextureFont(new Font(FontFamily.GenericSansSerif, 32.0f, FontStyle.Italic)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 34.0f)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 36.0f)),
new TextureFont(new Font(FontFamily.GenericSansSerif, 38.0f)),
new Font(FontFamily.GenericSansSerif, 32.0f, FontStyle.Italic),
new Font(FontFamily.GenericSansSerif, 34.0f),
new Font(FontFamily.GenericSansSerif, 36.0f),
new Font(FontFamily.GenericSansSerif, 38.0f),
};
#endregion
@ -99,10 +97,6 @@ namespace Examples.Tutorial
public override void OnLoad(EventArgs e)
{
GL.ClearColor(Color.SteelBlue);
handles = new TextHandle[fonts.Length];
for (int i = handles.Length; --i >= 0; )
printer.Prepare(text, fonts[i], out handles[i]);
}
#endregion
@ -117,9 +111,7 @@ namespace Examples.Tutorial
/// <param name="e"></param>
public override void OnUnload(EventArgs e)
{
foreach (TextHandle h in handles)
h.Dispose();
foreach (TextureFont f in fonts)
foreach (Font f in fonts)
f.Dispose();
}
@ -168,21 +160,21 @@ namespace Examples.Tutorial
printer.Begin();
// Print using the first font.
for (int i = 0; i < handles.Length / 2; i++)
for (int i = 0; i < fonts.Length / 2; i++)
{
printer.Draw(handles[i]);
printer.Print(text, fonts[i]);
GL.Translate(0, fonts[i].Height, 0);
}
// Move to the right, and print using the second font.
//float width, height;
//fonts[handles.Length / 2 - 1].MeasureString(text, out width, out height);
RectangleF rect = fonts[handles.Length / 2 - 1].MeasureText(text);
//fonts[handles.Length / 2 - 1].MeasureString(text, out width, out height);
RectangleF rect = printer.Measure(text, fonts[fonts.Length / 2 - 1]).BoundingBox;
GL.LoadIdentity();
GL.Translate(rect.Width + 32.0f, 0, 0);
for (int i = handles.Length / 2; i < handles.Length; i++)
for (int i = fonts.Length / 2; i < fonts.Length; i++)
{
printer.Draw(handles[i]);
printer.Print(text, fonts[i]);
GL.Translate(0, fonts[i].Height, 0);
}

31
Source/Examples/Tutorial/Text.cs
View file

@ -23,13 +23,12 @@ namespace Examples.Tutorial
[Example("Text", ExampleCategory.Tutorial, 4)]
public class Text : GameWindow
{
Font serif2 = new Font(FontFamily.GenericSerif, 16.0f);
TextureFont serif = new TextureFont(new Font(FontFamily.GenericSerif, 12.0f));
TextureFont sans = new TextureFont(new Font(FontFamily.GenericSansSerif, 14.0f));
TextHandle poem_handle;
Font serif = new Font(FontFamily.GenericSerif, 16.0f);
Font sans = new Font(FontFamily.GenericSansSerif, 48.0f, FontStyle.Italic);
TextPrinter text = new TextPrinter();
string poem = new StreamReader("Data/Poem.txt").ReadToEnd();
//string poem = new StreamReader("Data/Poem.txt").ReadToEnd();
string poem = "The quick brown fox jumped over the lazy dogs!\n\nKerning: Wo\nLigatures: ffi, fft";
int lines; // How many lines the poem contains.
float scroll_speed;
@ -49,7 +48,6 @@ namespace Examples.Tutorial
current_position = initial_position;
scroll_speed = -1.0f;
text.Prepare(poem, serif, out poem_handle);
// Count the amount of lines in the text, to find out the correct
// warparound position. We want the text to scroll until the last
@ -69,8 +67,10 @@ namespace Examples.Tutorial
public override void OnUnload(EventArgs e)
{
if (poem_handle != null) poem_handle.Dispose();
if (serif != null) serif.Dispose();
if (serif != null)
serif.Dispose();
if (sans != null)
sans.Dispose();
}
#endregion
@ -126,14 +126,17 @@ namespace Examples.Tutorial
// used in 2d graphics, and is necessary for achieving pixel-perfect glyph rendering.
// TextPrinter.End() restores your previous projection/modelview matrices.
text.Begin();
//GL.Color3(Color.LightBlue);
//text.Draw((1.0 / e.Time).ToString("F2"), sans);
// Print FPS counter. Since the counter changes per frame,
// it shouldn't be cached (TextPrinterOptions.NoCache).
GL.Color3(Color.LightYellow);
text.Print((1.0 / e.Time).ToString("F2"), sans, TextPrinterOptions.NoCache);
// Print the actual text.
GL.Translate(0.0f, current_position, 0.0f);
GL.Color3(Color.White);
//text.Draw(poem_handle);
//text.Draw(poem, serif);
//GL.BindTexture(TextureTarget.Texture2D, 1);
text.Print(poem, serif2);
text.Print(poem, serif);
text.End();
SwapBuffers();