mirror of
https://github.com/Ryujinx/Opentk.git
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641 lines
17 KiB
C#
641 lines
17 KiB
C#
#region --- License ---
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/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
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* See license.txt for license info
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Xml.XPath;
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namespace Bind.Structures
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{
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/// <summary>
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/// Represents a single parameter of an opengl function.
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/// </summary>
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public class Parameter : Type
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{
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string cache;
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bool rebuild;
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bool unsafe_allowed; // True if the cache may contain unsafe types, false otherwise.
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#region Constructors
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/// <summary>
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/// Creates a new Parameter without type and name.
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/// </summary>
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public Parameter()
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:base()
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{
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}
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/// <summary>
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/// Creates a new parameter from the parameters passed (deep copy).
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/// </summary>
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/// <param name="p">The parameter to copy from.</param>
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public Parameter(Parameter p)
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: base(p)
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{
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if (p == null)
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return;
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Name = p.Name;
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Unchecked = p.Unchecked;
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UnmanagedType = p.UnmanagedType;
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Generic = p.Generic;
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Flow = p.Flow;
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cache = p.cache;
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//this.rebuild = false;
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}
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#endregion
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#region public string Name
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string _name = String.Empty;
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/// <summary>
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/// Gets or sets the name of the parameter.
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/// </summary>
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public string Name
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{
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get { return _name; }
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set
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{
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if (_name != value)
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{
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while (value.StartsWith("*"))
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{
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Pointer++;
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value = value.Substring(1);
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}
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_name = value;
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rebuild = true;
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}
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}
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}
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#endregion
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#region UnmanagedType
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UnmanagedType _unmanaged_type;
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/// <summary>
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/// Gets or sets the name of the parameter.
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/// </summary>
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private UnmanagedType UnmanagedType
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{
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get { return _unmanaged_type; }
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set
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{
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if (_unmanaged_type != value)
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{
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_unmanaged_type = value;
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rebuild = true;
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}
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}
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}
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#endregion
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#region public FlowDirection Flow
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FlowDirection _flow;
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/// <summary>
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/// Gets or sets the flow of the parameter.
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/// </summary>
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public FlowDirection Flow
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{
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get { return _flow; }
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set
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{
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if (_flow != value)
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{
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_flow = value;
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rebuild = true;
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}
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}
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}
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#endregion
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#region public bool NeedsPin
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public bool NeedsPin
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{
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get
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{
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return (Array > 0 || Reference || CurrentType == "object") &&
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!CurrentType.ToLower().Contains("string");
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}
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}
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#endregion
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#region public bool Unchecked
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private bool _unchecked;
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public bool Unchecked
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{
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get { return _unchecked; }
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set
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{
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if (_unchecked != value)
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{
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_unchecked = value;
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rebuild = true;
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}
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}
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}
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#endregion
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#region public bool Generic
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bool generic;
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public bool Generic
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{
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get { return generic; }
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set { generic = value; }
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}
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#endregion
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#region public override string CurrentType
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public override string CurrentType
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{
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get
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{
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return base.CurrentType;
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}
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set
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{
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base.CurrentType = value;
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rebuild = true;
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}
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}
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#endregion
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#region public bool DiffersOnlyOnReference
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// Returns true if this parameter differs only on reference compared to another parameter, i.e:
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// returns true for 'int' & 'ref int'
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// returns true for 'ref float' & 'float'
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// returns false 'int' & 'int*'
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// returns false 'int' & 'int[]'
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// returns false 'int' & 'float'
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public bool DiffersOnlyOnReference(Parameter other)
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{
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return
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CurrentType == other.CurrentType &&
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(Reference && !(other.Reference || other.Array > 0 || other.Pointer != 0) ||
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other.Reference && !(Reference || Array > 0 || Pointer != 0));
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}
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#endregion
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#region public override string ToString()
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public override string ToString()
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{
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return ToString(false);
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}
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#endregion
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#region public string ToString(bool override_unsafe_setting)
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public string ToString(bool override_unsafe_setting)
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{
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rebuild |= unsafe_allowed |= override_unsafe_setting;
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unsafe_allowed = override_unsafe_setting;
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if (!String.IsNullOrEmpty(cache) && !rebuild)
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{
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return cache;
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}
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else
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{
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StringBuilder sb = new StringBuilder();
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if (Flow == FlowDirection.Out)
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sb.Append("[OutAttribute] ");
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else if (Flow == FlowDirection.Undefined)
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sb.Append("[InAttribute, OutAttribute] ");
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if (Reference)
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{
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if (Flow == FlowDirection.Out)
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sb.Append("out ");
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else
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sb.Append("ref ");
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}
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if (!override_unsafe_setting && ((Settings.Compatibility & Settings.Legacy.NoPublicUnsafeFunctions) != Settings.Legacy.None))
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{
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if (Pointer != 0)
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{
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sb.Append("IntPtr");
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}
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else
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{
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sb.Append(CurrentType);
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if (Array > 0)
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{
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sb.Append("[");
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for (int i = 1; i < Array; i++)
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sb.Append(",");
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sb.Append("]");
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}
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}
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}
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else
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{
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sb.Append(CurrentType);
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for (int i = 0; i < Pointer; i++)
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sb.Append("*");
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if (Array > 0)
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{
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sb.Append("[");
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for (int i = 1; i < Array; i++)
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sb.Append(",");
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sb.Append("]");
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}
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}
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if (!String.IsNullOrEmpty(Name))
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{
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sb.Append(" ");
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sb.Append(Utilities.Keywords.Contains(Name) ? "@" + Name : Name);
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}
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rebuild = false;
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cache = sb.ToString();
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return cache;
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}
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}
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#endregion
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#region override public void Translate(XPathNavigator overrides, string category)
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override public void Translate(XPathNavigator overrides, string category)
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{
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base.Translate(overrides, category);
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// Find out the necessary wrapper types.
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if (Pointer != 0)/* || CurrentType == "IntPtr")*/
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{
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if (CurrentType.ToLower().Contains("string"))
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{
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// string* -> [In] String[] or [Out] StringBuilder[]
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CurrentType =
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Flow == FlowDirection.Out ?
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"System.Text.StringBuilder[]" :
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"String[]";
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Pointer = 0;
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WrapperType = WrapperTypes.None;
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}
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else if (CurrentType.ToLower().Contains("char"))
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{
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// char* -> [In] String or [Out] StringBuilder
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CurrentType =
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Flow == FlowDirection.Out ?
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"System.Text.StringBuilder" :
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"String";
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Pointer = 0;
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WrapperType = WrapperTypes.None;
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}
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else if (CurrentType.ToLower().Contains("void") ||
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(!String.IsNullOrEmpty(PreviousType) && PreviousType.ToLower().Contains("void"))) /*|| CurrentType.Contains("IntPtr"))*/
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{
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CurrentType = "IntPtr";
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Pointer = 0;
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WrapperType = WrapperTypes.GenericParameter;
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}
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else
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{
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WrapperType = WrapperTypes.ArrayParameter;
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}
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}
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if (Reference)
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WrapperType |= WrapperTypes.ReferenceParameter;
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if (Name == "params")
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Name = "@params";
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if (Name == "event")
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Name = "@event";
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// This causes problems with bool arrays
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//if (CurrentType.ToLower().Contains("bool"))
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// WrapperType = WrapperTypes.BoolParameter;
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}
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#endregion
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#region Static Members
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// Returns the FlowDirection that matches the specified string
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// ("out" or "in", otherwise undefined).
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public static FlowDirection GetFlowDirection(string direction)
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{
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return direction == "out" ? FlowDirection.Out : direction == "in" ? FlowDirection.In : FlowDirection.Undefined;
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}
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#endregion
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}
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/// <summary>
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/// Holds the parameter list of an opengl function.
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/// </summary>
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public class ParameterCollection : List<Parameter>
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{
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string cache = String.Empty;
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string callStringCache = String.Empty;
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private bool rebuild = true;
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bool hasPointerParameters;
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bool hasReferenceParameters;
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bool hasUnsignedParameters;
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bool hasGenericParameters;
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bool unsafe_types_allowed;
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public bool Rebuild
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{
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private get { return rebuild; }
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set { rebuild = true;/*value;*/ }
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}
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#region Constructors
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public ParameterCollection()
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{
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}
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public ParameterCollection(ParameterCollection pc)
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{
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foreach (Parameter p in pc)
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{
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Add(new Parameter(p));
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}
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}
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#endregion
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#region void BuildCache()
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void BuildCache()
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{
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BuildReferenceAndPointerParametersCache();
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BuildCallStringCache();
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BuildToStringCache(unsafe_types_allowed);
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Rebuild = false;
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}
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#endregion
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#region public bool HasPointerParameters
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public bool HasPointerParameters
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{
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get
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{
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if (Rebuild)
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BuildCache();
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return hasPointerParameters;
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}
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}
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#endregion
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#region public bool HasReferenceParameters
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public bool HasReferenceParameters
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{
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get
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{
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if (Rebuild)
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BuildCache();
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return hasReferenceParameters;
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}
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}
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#endregion
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#region public bool HasUnsignedParameters
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public bool HasUnsignedParameters
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{
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get
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{
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if (Rebuild)
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BuildCache();
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return hasUnsignedParameters;
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}
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}
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#endregion
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#region public bool HasGenericParameters
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public bool HasGenericParameters
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{
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get
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{
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if (Rebuild)
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BuildCache();
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return hasGenericParameters;
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}
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}
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#endregion
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#region void BuildReferenceAndPointerParametersCache()
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void BuildReferenceAndPointerParametersCache()
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{
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foreach (Parameter p in this)
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{
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if (p.Pointer != 0 || p.CurrentType.Contains("IntPtr"))
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hasPointerParameters = true;
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if (p.Reference)
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hasReferenceParameters = true;
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if (p.Unsigned)
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hasUnsignedParameters = true;
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if (p.Generic)
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hasGenericParameters = true;
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}
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}
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#endregion
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#region new public void Add(Parameter p)
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new public void Add(Parameter p)
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{
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Rebuild = true;
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base.Add(p);
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}
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#endregion
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public override string ToString()
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{
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return ToString(false);
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}
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#region public string ToString(bool override_unsafe_setting)
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/// <summary>
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/// Gets the parameter declaration string.
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/// </summary>
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/// <param name="override_unsafe_setting">
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/// If true, unsafe types will be used even if the Settings.Compatibility.NoPublicUnsafeFunctions flag is set.
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/// </param>
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/// <returns>The parameter list of an opengl function in the form ( [parameters] )</returns>
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public string ToString(bool override_unsafe_setting)
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{
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Rebuild |= unsafe_types_allowed != override_unsafe_setting;
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unsafe_types_allowed = override_unsafe_setting;
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if (!Rebuild)
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{
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return cache;
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}
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else
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{
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BuildCache();
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return cache;
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}
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}
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#endregion
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#region void BuildToStringCache(bool override_unsafe_setting)
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void BuildToStringCache(bool override_unsafe_setting)
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{
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unsafe_types_allowed = override_unsafe_setting;
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StringBuilder sb = new StringBuilder();
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sb.Append("(");
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if (Count > 0)
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{
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foreach (Parameter p in this)
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{
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sb.Append(p.ToString(override_unsafe_setting));
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sb.Append(", ");
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}
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sb.Replace(", ", ")", sb.Length - 2, 2);
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}
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else
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sb.Append(")");
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cache = sb.ToString();
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}
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#endregion
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#region public string CallString()
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public string CallString()
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{
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if (!Rebuild)
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{
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return callStringCache;
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}
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else
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{
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BuildCache();
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return callStringCache;
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}
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}
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#endregion
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#region private void BuildCallStringCache()
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/// <summary>
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/// Builds a call string instance and caches it.
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/// </summary>
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private void BuildCallStringCache()
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{
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StringBuilder sb = new StringBuilder();
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sb.Append("(");
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if (Count > 0)
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{
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foreach (Parameter p in this)
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{
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if (p.Unchecked)
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sb.Append("unchecked((" + p.CurrentType + ")");
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if (!p.Generic && p.CurrentType != "object")
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{
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if (p.CurrentType.ToLower().Contains("string"))
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{
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sb.Append(String.Format("({0}{1})",
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p.CurrentType, (p.Array > 0) ? "[]" : ""));
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}
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else if (p.IndirectionLevel != 0)
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{
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if (((Settings.Compatibility & Settings.Legacy.TurnVoidPointersToIntPtr) != Settings.Legacy.None) &&
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p.Pointer != 0 && p.CurrentType.Contains("void"))
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sb.Append("(IntPtr)");
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else
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{
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sb.Append("(");
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sb.Append(p.CurrentType);
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for (int i = 0; i < p.IndirectionLevel; i++)
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sb.Append("*");
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sb.Append(")");
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}
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}
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else
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{
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sb.Append(String.Format("({0})", p.CurrentType));
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}
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}
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sb.Append(Utilities.Keywords.Contains(p.Name) ? "@" + p.Name : p.Name);
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if (p.Unchecked)
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sb.Append(")");
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sb.Append(", ");
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}
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sb.Replace(", ", ")", sb.Length - 2, 2);
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}
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else
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{
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sb.Append(")");
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}
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callStringCache = sb.ToString();
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}
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#endregion
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public bool ContainsType(string type)
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{
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foreach (Parameter p in this)
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if (p.CurrentType == type)
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return true;
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return false;
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}
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}
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}
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