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Use StringBuilder.Capacity to specify the available buffer size in OpenGL interop (StringBuilder.Length is invalid in this case).

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Added workaround for Mono 1.9.1 issue, where StringBuilder return truncated results when used in interop. Doubling the StringBuilder capacity fixes this issue.
This commit is contained in:
the_fiddler 2009-10-21 17:26:07 +00:00
parent ab0a0f31ff
commit 8fbea23db2
1 changed files with 20 additions and 21 deletions
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25
Source/OpenTK/Graphics/OpenGL/GLHelper.cs
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@ -342,6 +342,9 @@ namespace OpenTK.Graphics.OpenGL
#pragma warning disable 1572
#pragma warning disable 1573
// Note: Mono 1.9.1 truncates StringBuilder results (for 'out string' parameters).
// We work around this issue by doubling the StringBuilder capacity.
#region public static void Color[34]() overloads
public static void Color3(System.Drawing.Color color)
@ -641,9 +644,9 @@ namespace OpenTK.Graphics.OpenGL
{
int length;
GetProgram(program, OpenTK.Graphics.OpenGL.ProgramParameter.ActiveAttributeMaxLength, out length);
StringBuilder sb = new StringBuilder(length == 0 ? 1 : length * 2);
StringBuilder sb = new StringBuilder(length == 0 ? 1 : length);
GetActiveAttrib(program, index, sb.Length, out length, out size, out type, sb);
GetActiveAttrib(program, index, sb.Capacity, out length, out size, out type, sb);
return sb.ToString();
}
@ -657,7 +660,7 @@ namespace OpenTK.Graphics.OpenGL
GetProgram(program, OpenTK.Graphics.OpenGL.ProgramParameter.ActiveUniformMaxLength, out length);
StringBuilder sb = new StringBuilder(length == 0 ? 1 : length);
GetActiveUniform(program, uniformIndex, sb.Length, out length, out size, out type, sb);
GetActiveUniform(program, uniformIndex, sb.Capacity, out length, out size, out type, sb);
return sb.ToString();
}
@ -669,11 +672,9 @@ namespace OpenTK.Graphics.OpenGL
{
int length;
GetProgram(program, OpenTK.Graphics.OpenGL.ProgramParameter.ActiveUniformMaxLength, out length);
if (length == 0)
return String.Empty;
StringBuilder sb = new StringBuilder(length == 0 ? 1 : length * 2);
StringBuilder sb = new StringBuilder(length);
GetActiveUniformName(program, uniformIndex, sb.Length, out length, sb);
GetActiveUniformName(program, uniformIndex, sb.Capacity, out length, sb);
return sb.ToString();
}
@ -685,11 +686,9 @@ namespace OpenTK.Graphics.OpenGL
{
int length;
GetProgram(program, OpenTK.Graphics.OpenGL.ProgramParameter.ActiveUniformBlockMaxNameLength, out length);
if (length == 0)
return String.Empty;
StringBuilder sb = new StringBuilder(length == 0 ? 1 : length * 2);
StringBuilder sb = new StringBuilder(length);
GetActiveUniformBlockName(program, uniformIndex, sb.Length, out length, sb);
GetActiveUniformBlockName(program, uniformIndex, sb.Capacity, out length, sb);
return sb.ToString();
}
@ -732,7 +731,7 @@ namespace OpenTK.Graphics.OpenGL
info = String.Empty;
return;
}
StringBuilder sb = new StringBuilder(length);
StringBuilder sb = new StringBuilder(length * 2);
GL.GetShaderInfoLog((UInt32)shader, sb.Capacity, &length, sb);
info = sb.ToString();
}
@ -763,7 +762,7 @@ namespace OpenTK.Graphics.OpenGL
info = String.Empty;
return;
}
StringBuilder sb = new StringBuilder(length);
StringBuilder sb = new StringBuilder(length * 2);
GL.GetProgramInfoLog((UInt32)program, sb.Capacity, &length, sb);
info = sb.ToString();
}