Opentk/Source/Bind/Utilities.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.IO;
using System.Text.RegularExpressions;
using Bind.Structures;
using Delegate=Bind.Structures.Delegate;
using Enum=Bind.Structures.Enum;
namespace Bind
{
#region WrapperTypes enum
[Flags]
public enum WrapperTypes
{
/// <summary>
/// No wrapper needed.
/// </summary>
None = 0,
/// <summary>
/// Function takes bool parameter - C uses Int for bools, so we have to marshal.
/// </summary>
BoolParameter,
/// <summary>
/// Function takes generic parameters - add ref/out generic and generic overloads.
/// </summary>
GenericParameter,
/// <summary>
/// Function takes arrays as parameters - add ref/out and ([Out]) array overloads.
/// </summary>
ArrayParameter,
/// <summary>
/// Function with bitmask parameters. Bitmask parameters map to UInt, but since we can only use signed
/// types (for CLS compliance), we must add the unchecked keyword.
/// Usually found in bitmasks
/// </summary>
UncheckedParameter,
/// <summary>
/// Function that takes (in/ref/out) a naked pointer as a parameter - we pass an IntPtr.
/// </summary>
PointerParameter,
/// <summary>
/// Function that takes a reference to a struct.
/// </summary>
ReferenceParameter,
/// <summary>
/// Function returns string - needs manual marshalling through IntPtr to prevent the managed GC
/// from freeing memory allocated on the unmanaged side (e.g. glGetString).
/// </summary>
StringReturnType,
/// <summary>
/// Function returns a void pointer - maps to IntPtr, and the user has to manually marshal the type.
/// </summary>
GenericReturnType,
/// <summary>
/// Function returns a typed pointer - we have to copy the data to an array to protect it from the GC.
/// </summary>
ArrayReturnType
}
#endregion
public static class Utilities
{
public static readonly char[] Separators = { ' ', '\n', ',', '(', ')', ';', '#' };
public static readonly Regex Extensions = new Regex(
"(ARB|EXT|ATIX|ATI|AMDX|AMD|NV|NVX|SUNX|SUN|SGIS|SGIX|SGI|MESAX|MESA|3DFX|IBM|GREMEDY|HP|INTEL|PGI|INGR|APPLE|OML|I3D|ARM|ANGLE|OES|QCOM)",
RegexOptions.Compiled);
#region internal StreamReader OpenSpecFile(string file)
internal static StreamReader OpenSpecFile(string folder, string file)
{
if (String.IsNullOrEmpty(folder) || String.IsNullOrEmpty(file))
return null;
Console.WriteLine(folder);
Console.WriteLine(file);
string path = Path.Combine(folder, file);
Console.WriteLine(path);
return new StreamReader(path);
}
#endregion
#region Keywords
public static List<string> Keywords
{
get
{
switch (Settings.Language)
{
case GeneratorLanguage.CSharp: return CSharpKeywords;
case GeneratorLanguage.Cpp: return CppKeywords;
default: throw new NotImplementedException();
}
}
}
static readonly List<string> CSharpKeywords = new List<string>(
new string[]
{
"abstract", "event", "new", "struct",
"as", "explicit", "null", "switch",
"base", "extern", "object", "this",
"bool", "false", "operator", "throw",
"break", "finally", "out", "true",
"byte", "fixed", "override", "try",
"case", "float", "params", "typeof",
"catch", "for", "private", "uint",
"char", "foreach", "protected", "ulong",
"checked", "goto", "public", "unchecked",
"class", "if", "readonly", "unsafe",
"const", "implicit", "ref", "ushort",
"continue", "in", "return", "using",
"decimal", "int", "sbyte", "virtual",
"default", "interface", "sealed", "volatile",
"delegate", "internal", "short", "void",
"do", "is", "sizeof", "while",
"double", "lock", "stackalloc",
"else", "long", "static",
"enum", "namespace", "string"
}
);
static readonly List<string> CppKeywords = new List<string>();
#endregion
#region Merge
// Merges the specified enum collections.
internal static void Merge(EnumCollection enums, EnumCollection new_enums)
{
foreach (var e in new_enums)
{
Merge(enums, e.Value);
}
}
/// <summary>
/// Merges the given enum into the enum list. If an enum of the same name exists,
/// it merges their respective constants.
/// </summary>
/// <param name="enums"></param>
/// <param name="t"></param>
internal static void Merge(EnumCollection enums, Enum t)
{
if (!enums.ContainsKey(t.Name))
{
enums.Add(t.Name, t);
}
else
{
Enum e = enums[t.Name];
foreach (Constant c in t.ConstantCollection.Values)
{
Merge(e, c);
}
}
}
/// <summary>
/// Places a new constant in the specified enum, if it doesn't already exist.
/// The existing constant is replaced iff the new has a numeric value and the old
/// has a reference value (eg 0x5 is preferred over AttribMask.Foo)
/// </summary>
/// <param name="s"></param>
/// <param name="t"></param>
/// <returns></returns>
internal static Enum Merge(Enum s, Constant t)
{
if (!s.ConstantCollection.ContainsKey(t.Name))
{
s.ConstantCollection.Add(t.Name, t);
}
else
{
// Tried to add a constant that already exists. If one constant
// is like: 'Foo = 0x5' and the other like: 'Foo = Bar.Foo', then
// keep the first one.
if (!Char.IsDigit(((Constant)s.ConstantCollection[t.Name]).Value[0]))
{
s.ConstantCollection.Remove(t.Name);
s.ConstantCollection.Add(t.Name, t);
}
}
return s;
}
// Merges the specified enum collections.
internal static void Merge(DelegateCollection delegates, DelegateCollection new_delegates)
{
foreach (var d in new_delegates)
{
Merge(delegates, d.Value);
}
}
// Merges the given delegate into the delegate list.
internal static void Merge(DelegateCollection delegates, Delegate t)
{
delegates.Add(t.Name, t);
}
#endregion
#region internal static string GetGL2Extension(string name)
internal static string GetGL2Extension(string name)
{
var match = Extensions.Match(name);
if (match.Success)
{
string ext = match.Value;
if (ext.Length > 2)
{
ext = ext[0] + ext.Substring(1).ToLower();
}
return ext;
}
else
{
return String.Empty;
}
}
#endregion
#region private static bool IsGL2Extension(string function)
private static bool IsGL2Extension(string function)
{
return !String.IsNullOrEmpty(GetGL2Extension(function));
}
#endregion
#region internal static string StripGL2Extension(string p)
internal static string StripGL2Extension(string p)
{
return p.Substring(0, p.Length - GetGL2Extension(p).Length);
}
#endregion
}
}