134 lines
4.4 KiB
C#
134 lines
4.4 KiB
C#
#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 "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.Diagnostics;
|
|
|
|
namespace OpenTK.Graphics.ES10
|
|
{
|
|
// Used in debug-mode only, for automatic OpenGL error-checking.
|
|
//
|
|
// Works like this: an instance is created before each OpenGL function is called.
|
|
// The constructor resets the OpenGL error state. Once the native function returns,
|
|
// the error state is checked again, raising the relevant exceptions.
|
|
//
|
|
// A using-region is used to ensure Dispose() is called.
|
|
//
|
|
// Make sure that no error checking is added to the GetError function,
|
|
// as that would cause infinite recursion!
|
|
struct ErrorHelper : IDisposable
|
|
{
|
|
#region Fields
|
|
|
|
static readonly object SyncRoot = new object();
|
|
static readonly Dictionary<GraphicsContext, List<ErrorCode>> ContextErrors =
|
|
new Dictionary<GraphicsContext, List<ErrorCode>>();
|
|
readonly GraphicsContext Context;
|
|
|
|
#endregion
|
|
|
|
#region Constructors
|
|
|
|
public ErrorHelper(IGraphicsContext context)
|
|
{
|
|
if (context == null)
|
|
throw new GraphicsContextMissingException();
|
|
|
|
Context = (GraphicsContext)context;
|
|
lock (SyncRoot)
|
|
{
|
|
if (!ContextErrors.ContainsKey(Context))
|
|
ContextErrors.Add(Context, new List<ErrorCode>());
|
|
}
|
|
ResetErrors();
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region Public Members
|
|
|
|
// Retrieve all OpenGL errors to clear the error list.
|
|
// See http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/gl/geterror.html
|
|
[Conditional("DEBUG")]
|
|
internal void ResetErrors()
|
|
{
|
|
if (Context.ErrorChecking)
|
|
{
|
|
while ((ErrorCode)GL.GetError() != ErrorCode.NoError)
|
|
{ }
|
|
}
|
|
}
|
|
|
|
// Retrieve all OpenGL errors and throw an exception if anything other than NoError is returned.
|
|
[Conditional("DEBUG")]
|
|
internal void CheckErrors()
|
|
{
|
|
if (Context.ErrorChecking)
|
|
{
|
|
List<ErrorCode> error_list = ContextErrors[Context];
|
|
error_list.Clear();
|
|
ErrorCode error;
|
|
do
|
|
{
|
|
error = (ErrorCode)GL.GetError();
|
|
error_list.Add(error);
|
|
} while (error != ErrorCode.NoError);
|
|
|
|
if (error_list.Count != 1)
|
|
{
|
|
StringBuilder sb = new StringBuilder();
|
|
foreach (ErrorCode e in error_list)
|
|
{
|
|
if (e != ErrorCode.NoError)
|
|
{
|
|
sb.Append(e.ToString());
|
|
sb.Append(", ");
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
sb.Remove(sb.Length - 2, 2); // Remove the last comma
|
|
|
|
throw new GraphicsErrorException(sb.ToString());
|
|
}
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region IDisposable Members
|
|
|
|
public void Dispose()
|
|
{
|
|
CheckErrors();
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
}
|