692 lines
29 KiB
C#
692 lines
29 KiB
C#
#region License
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//
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// The Open Toolkit Library License
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//
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// Copyright (c) 2006 - 2010 the Open Toolkit library.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do
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// so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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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.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Text.RegularExpressions;
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using System.Xml.XPath;
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using Bind.Structures;
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using Delegate = Bind.Structures.Delegate;
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namespace Bind
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{
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class FuncProcessor
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{
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const string Path = "/signatures/replace/function[@name='{0}' and @extension='{1}']";
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static readonly Regex Endings =
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new Regex(@"((((d|f|fi)|(L?(u?i?64)?u?[isb]))_?(64)?v?)|v)", RegexOptions.Compiled | RegexOptions.RightToLeft);
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static readonly Regex EndingsNotToTrim =
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new Regex("(ib|[tdrey]s|[eE]n[vd]|bled|Attrib|Access|Coord|Flag|Tess|Status|Pixels|Instanced|Indexed|Varyings|Boolean|IDs|Uniforms)", RegexOptions.Compiled | RegexOptions.RightToLeft);
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static readonly Regex EndingsAddV = new Regex("^0", RegexOptions.Compiled);
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string Overrides { get; set; }
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public FuncProcessor(string overrides)
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{
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if (overrides == null)
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throw new ArgumentNullException("overrides");
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Overrides = overrides;
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}
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public FunctionCollection Process(DelegateCollection delegates, EnumCollection enums)
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{
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Console.WriteLine("Processing delegates.");
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var nav = new XPathDocument(Overrides).CreateNavigator();
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foreach (var d in delegates.Values)
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{
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TranslateReturnType(nav, d, enums);
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TranslateParameters(nav, d, enums);
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}
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Console.WriteLine("Generating wrappers.");
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var wrappers = CreateWrappers(delegates, enums);
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Console.WriteLine("Creating CLS compliant overloads.");
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wrappers = CreateCLSCompliantWrappers(wrappers, enums);
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Console.WriteLine("Removing non-CLS compliant duplicates.");
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return MarkCLSCompliance(wrappers);
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}
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// Trims unecessary suffices from the specified OpenGL function name.
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public static string TrimName(string name, bool keep_extension)
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{
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string trimmed_name = Utilities.StripGL2Extension(name);
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string extension = Utilities.GetGL2Extension(name);
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// Note: some endings should not be trimmed, for example: 'b' from Attrib.
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// Check the endingsNotToTrim regex for details.
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Match m = EndingsNotToTrim.Match(trimmed_name);
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if ((m.Index + m.Length) != trimmed_name.Length)
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{
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m = Endings.Match(trimmed_name);
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if (m.Length > 0 && m.Index + m.Length == trimmed_name.Length)
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{
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// Only trim endings, not internal matches.
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if (m.Value[m.Length - 1] == 'v' && EndingsAddV.IsMatch(name) &&
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!name.StartsWith("Get") && !name.StartsWith("MatrixIndex"))
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{
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// Only trim ending 'v' when there is a number
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trimmed_name = trimmed_name.Substring(0, m.Index) + "v";
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}
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else
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{
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if (!trimmed_name.EndsWith("xedv"))
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{
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trimmed_name = trimmed_name.Substring(0, m.Index);
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}
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else
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{
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trimmed_name = trimmed_name.Substring(0, m.Index + 1);
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}
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}
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}
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}
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return trimmed_name;
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}
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static XPathNavigator GetFuncOverride(XPathNavigator nav, Delegate d)
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{
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string name = TrimName(d.Name, false);
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string ext = d.Extension;
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var function_override =
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nav.SelectSingleNode(String.Format(Path, name, ext)) ??
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nav.SelectSingleNode(String.Format(Path, d.Name, ext)) ??
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nav.SelectSingleNode(String.Format(Path, Utilities.StripGL2Extension(d.Name), ext));
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return function_override;
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}
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// Translates the opengl return type to the equivalent C# type.
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//
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// First, we use the official typemap (gl.tm) to get the correct type.
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// Then we override this, when it is:
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// 1) A string (we have to use Marshal.PtrToStringAnsi, to avoid heap corruption)
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// 2) An array (translates to IntPtr)
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// 3) A generic object or void* (translates to IntPtr)
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// 4) A GLenum (translates to int on Legacy.Tao or GL.Enums.GLenum otherwise).
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// Return types must always be CLS-compliant, because .Net does not support overloading on return types.
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static void TranslateReturnType(XPathNavigator nav, Delegate d, EnumCollection enums)
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{
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var function_override = GetFuncOverride(nav, d);
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if (function_override != null)
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{
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XPathNavigator return_override = function_override.SelectSingleNode("returns");
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if (return_override != null)
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{
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d.ReturnType.CurrentType = return_override.Value;
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}
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}
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d.ReturnType.Translate(nav, d.Category, enums);
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if (d.ReturnType.CurrentType.ToLower().Contains("void") && d.ReturnType.Pointer != 0)
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{
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d.ReturnType.QualifiedType = "IntPtr";
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d.ReturnType.WrapperType = WrapperTypes.GenericReturnType;
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}
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if (d.ReturnType.CurrentType.ToLower().Contains("string"))
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{
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d.ReturnType.QualifiedType = "IntPtr";
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d.ReturnType.WrapperType = WrapperTypes.StringReturnType;
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}
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if (d.ReturnType.CurrentType.ToLower() == "object")
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{
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d.ReturnType.QualifiedType = "IntPtr";
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d.ReturnType.WrapperType |= WrapperTypes.GenericReturnType;
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}
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if (d.ReturnType.CurrentType.Contains("GLenum"))
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{
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if ((Settings.Compatibility & Settings.Legacy.ConstIntEnums) == Settings.Legacy.None)
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d.ReturnType.QualifiedType = String.Format("{0}{1}{2}",
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Settings.EnumsOutput, Settings.NamespaceSeparator, Settings.CompleteEnumName);
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else
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d.ReturnType.QualifiedType = "int";
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}
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d.ReturnType.CurrentType = d.ReturnType.GetCLSCompliantType();
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}
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static void TranslateParameters(XPathNavigator nav, Delegate d, EnumCollection enums)
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{
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var function_override = GetFuncOverride(nav, d);
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for (int i = 0; i < d.Parameters.Count; i++)
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{
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if (function_override != null)
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{
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XPathNavigator param_override = function_override.SelectSingleNode(
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String.Format("param[@name='{0}']", d.Parameters[i].RawName));
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if (param_override != null)
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{
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foreach (XPathNavigator node in param_override.SelectChildren(XPathNodeType.Element))
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{
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switch (node.Name)
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{
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case "type":
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d.Parameters[i].CurrentType = (string)node.TypedValue;
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break;
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case "name":
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d.Parameters[i].Name = (string)node.TypedValue;
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break;
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case "flow":
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d.Parameters[i].Flow = Parameter.GetFlowDirection((string)node.TypedValue);
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break;
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}
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}
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}
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}
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d.Parameters[i].Translate(nav, d.Category, enums);
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if (d.Parameters[i].CurrentType == "UInt16" && d.Name.Contains("LineStipple"))
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d.Parameters[i].WrapperType = WrapperTypes.UncheckedParameter;
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}
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}
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static FunctionCollection CreateWrappers(DelegateCollection delegates, EnumCollection enums)
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{
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var wrappers = new FunctionCollection();
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foreach (var d in delegates.Values)
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{
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wrappers.AddRange(CreateNormalWrappers(d, enums));
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}
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return wrappers;
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}
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static FunctionCollection CreateCLSCompliantWrappers(FunctionCollection functions, EnumCollection enums)
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{
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// If the function is not CLS-compliant (e.g. it contains unsigned parameters)
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// we need to create a CLS-Compliant overload. However, we should only do this
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// iff the opengl function does not contain unsigned/signed overloads itself
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// to avoid redefinitions.
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var wrappers = new FunctionCollection();
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foreach (var list in functions.Values)
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{
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foreach (var f in list)
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{
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wrappers.AddChecked(f);
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if (!f.CLSCompliant)
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{
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Function cls = new Function(f);
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cls.Body.Clear();
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CreateBody(cls, true, enums);
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bool modified = false;
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for (int i = 0; i < f.Parameters.Count; i++)
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{
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cls.Parameters[i].CurrentType = cls.Parameters[i].GetCLSCompliantType();
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if (cls.Parameters[i].CurrentType != f.Parameters[i].CurrentType)
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modified = true;
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}
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if (modified)
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wrappers.AddChecked(cls);
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}
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}
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}
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return wrappers;
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}
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static FunctionCollection MarkCLSCompliance(FunctionCollection collection)
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{
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//foreach (var w in
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// (from list in collection
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// from w1 in list.Value
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// from w2 in list.Value
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// where
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// w1.TrimmedName == w2.TrimmedName &&
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// w1.Parameters.Count == w2.Parameters.Count &&
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// ParametersDifferOnlyInReference(w1.Parameters, w2.Parameters)
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// select !w1.Parameters.HasReferenceParameters ? w1 : w2))
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// {
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// results.Add(w);
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// }
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foreach (List<Function> wrappers in collection.Values)
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{
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restart:
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for (int i = 0; i < wrappers.Count; i++)
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{
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for (int j = i + 1; j < wrappers.Count; j++)
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{
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if (wrappers[i].TrimmedName == wrappers[j].TrimmedName && wrappers[i].Parameters.Count == wrappers[j].Parameters.Count)
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{
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bool function_i_is_problematic = false;
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bool function_j_is_problematic = false;
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int k;
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for (k = 0; k < wrappers[i].Parameters.Count; k++)
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{
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if (wrappers[i].Parameters[k].CurrentType != wrappers[j].Parameters[k].CurrentType)
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break;
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if (wrappers[i].Parameters[k].DiffersOnlyOnReference(wrappers[j].Parameters[k]))
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if (wrappers[i].Parameters[k].Reference)
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function_i_is_problematic = true;
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else
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function_j_is_problematic = true;
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}
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if (k == wrappers[i].Parameters.Count)
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{
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if (function_i_is_problematic)
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wrappers.RemoveAt(i);
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//wrappers[i].CLSCompliant = false;
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if (function_j_is_problematic)
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wrappers.RemoveAt(j);
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//wrappers[j].CLSCompliant = false;
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if (function_i_is_problematic || function_j_is_problematic)
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goto restart;
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}
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}
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}
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}
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}
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return collection;
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}
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static IEnumerable<Function> CreateNormalWrappers(Delegate d, EnumCollection enums)
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{
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Function f = new Function(d);
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WrapReturnType(f);
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foreach (var wrapper in WrapParameters(f, enums))
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{
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yield return wrapper;
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}
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}
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public static IEnumerable<Function> WrapParameters(Function func, EnumCollection enums)
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{
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Function f;
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if (func.Parameters.HasPointerParameters)
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{
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Function _this = new Function(func);
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// Array overloads
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foreach (Parameter p in _this.Parameters)
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{
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if (p.WrapperType == WrapperTypes.ArrayParameter && p.ElementCount != 1)
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{
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p.Reference = false;
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p.Array++;
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p.Pointer--;
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}
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}
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f = new Function(_this);
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CreateBody(f, false, enums);
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yield return f;
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foreach (var w in WrapVoidPointers(new Function(f), enums))
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yield return w;
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_this = new Function(func);
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// Reference overloads
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foreach (Parameter p in _this.Parameters)
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{
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if (p.WrapperType == WrapperTypes.ArrayParameter)
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{
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p.Reference = true;
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p.Array--;
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p.Pointer--;
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}
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}
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f = new Function(_this);
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CreateBody(f, false, enums);
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yield return f;
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foreach (var w in WrapVoidPointers(new Function(f), enums))
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yield return w;
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_this = func;
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// Pointer overloads
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// Should be last to work around Intellisense bug, where
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// array overloads are not reported if there is a pointer overload.
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foreach (Parameter p in _this.Parameters)
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{
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if (p.WrapperType == WrapperTypes.ArrayParameter)
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{
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p.Reference = false;
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//p.Array--;
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//p.Pointer++;
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}
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}
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f = new Function(_this);
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CreateBody(f, false, enums);
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yield return f;
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foreach (var w in WrapVoidPointers(new Function(f), enums))
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yield return w;
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}
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else
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{
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f = new Function(func);
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CreateBody(f, false, enums);
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yield return f;
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}
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}
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static int index;
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static IEnumerable<Function> WrapVoidPointers(Function func, EnumCollection enums)
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{
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if (index >= 0 && index < func.Parameters.Count)
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{
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if (func.Parameters[index].WrapperType == WrapperTypes.GenericParameter)
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{
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// Recurse to the last parameter
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++index;
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foreach (var w in WrapVoidPointers(func, enums))
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yield return w;
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--index;
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// On stack rewind, create generic wrappers
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func.Parameters[index].Reference = true;
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func.Parameters[index].Array = 0;
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func.Parameters[index].Pointer = 0;
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func.Parameters[index].Generic = true;
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func.Parameters[index].CurrentType = "T" + index.ToString();
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func.Parameters[index].Flow = FlowDirection.Undefined;
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func.Parameters.Rebuild = true;
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CreateBody(func, false, enums);
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yield return new Function(func);
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func.Parameters[index].Reference = false;
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func.Parameters[index].Array = 1;
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func.Parameters[index].Pointer = 0;
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func.Parameters[index].Generic = true;
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func.Parameters[index].CurrentType = "T" + index.ToString();
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func.Parameters[index].Flow = FlowDirection.Undefined;
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func.Parameters.Rebuild = true;
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CreateBody(func, false, enums);
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yield return new Function(func);
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func.Parameters[index].Reference = false;
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func.Parameters[index].Array = 2;
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func.Parameters[index].Pointer = 0;
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func.Parameters[index].Generic = true;
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func.Parameters[index].CurrentType = "T" + index.ToString();
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func.Parameters[index].Flow = FlowDirection.Undefined;
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func.Parameters.Rebuild = true;
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CreateBody(func, false, enums);
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yield return new Function(func);
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func.Parameters[index].Reference = false;
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func.Parameters[index].Array = 3;
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func.Parameters[index].Pointer = 0;
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func.Parameters[index].Generic = true;
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func.Parameters[index].CurrentType = "T" + index.ToString();
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func.Parameters[index].Flow = FlowDirection.Undefined;
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func.Parameters.Rebuild = true;
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CreateBody(func, false, enums);
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yield return new Function(func);
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}
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else
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{
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// Recurse to the last parameter
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++index;
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foreach (var w in WrapVoidPointers(func, enums))
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yield return w;
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--index;
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}
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}
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}
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static void WrapReturnType(Function func)
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{
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switch (func.ReturnType.WrapperType)
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{
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case WrapperTypes.StringReturnType:
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func.ReturnType.QualifiedType = "String";
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break;
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}
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}
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readonly static List<string> handle_statements = new List<string>();
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readonly static List<string> handle_release_statements = new List<string>();
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readonly static List<string> fixed_statements = new List<string>();
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readonly static List<string> assign_statements = new List<string>();
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// For example, if parameter foo has indirection level = 1, then it
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// is consumed as 'foo*' in the fixed_statements and the call string.
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readonly static string[] indirection_levels = new string[] { "", "*", "**", "***", "****" };
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static void CreateBody(Function func, bool wantCLSCompliance, EnumCollection enums)
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{
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Function f = new Function(func);
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f.Body.Clear();
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handle_statements.Clear();
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handle_release_statements.Clear();
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fixed_statements.Clear();
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assign_statements.Clear();
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// Obtain pointers by pinning the parameters
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foreach (Parameter p in f.Parameters)
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{
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if (p.NeedsPin)
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{
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if (p.WrapperType == WrapperTypes.GenericParameter)
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{
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// Use GCHandle to obtain pointer to generic parameters and 'fixed' for arrays.
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// This is because fixed can only take the address of fields, not managed objects.
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handle_statements.Add(String.Format(
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"{0} {1}_ptr = {0}.Alloc({1}, GCHandleType.Pinned);",
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"GCHandle", p.Name));
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handle_release_statements.Add(String.Format("{0}_ptr.Free();", p.Name));
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// Due to the GCHandle-style pinning (which boxes value types), we need to assign the modified
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// value back to the reference parameter (but only if it has an out or in/out flow direction).
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if ((p.Flow == FlowDirection.Out || p.Flow == FlowDirection.Undefined) && p.Reference)
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{
|
|
assign_statements.Add(String.Format(
|
|
"{0} = ({1}){0}_ptr.Target;",
|
|
p.Name, p.QualifiedType));
|
|
}
|
|
|
|
// Note! The following line modifies f.Parameters, *not* this.Parameters
|
|
p.Name = "(IntPtr)" + p.Name + "_ptr.AddrOfPinnedObject()";
|
|
}
|
|
else if (p.WrapperType == WrapperTypes.PointerParameter ||
|
|
p.WrapperType == WrapperTypes.ArrayParameter ||
|
|
p.WrapperType == WrapperTypes.ReferenceParameter)
|
|
{
|
|
// A fixed statement is issued for all non-generic pointers, arrays and references.
|
|
fixed_statements.Add(String.Format(
|
|
"fixed ({0}{3} {1} = {2})",
|
|
wantCLSCompliance && !p.CLSCompliant ? p.GetCLSCompliantType() : p.QualifiedType,
|
|
p.Name + "_ptr",
|
|
p.Array > 0 ? p.Name : "&" + p.Name,
|
|
indirection_levels[p.IndirectionLevel]));
|
|
|
|
if (p.Name == "pixels_ptr")
|
|
System.Diagnostics.Debugger.Break();
|
|
|
|
// Arrays are not value types, so we don't need to do anything for them.
|
|
// Pointers are passed directly by value, so we don't need to assign them back either (they don't change).
|
|
if ((p.Flow == FlowDirection.Out || p.Flow == FlowDirection.Undefined) && p.Reference)
|
|
{
|
|
assign_statements.Add(String.Format("{0} = *{0}_ptr;", p.Name));
|
|
}
|
|
|
|
p.Name = p.Name + "_ptr";
|
|
}
|
|
else
|
|
{
|
|
throw new ApplicationException("Unknown parameter type");
|
|
}
|
|
}
|
|
}
|
|
|
|
// Automatic OpenGL error checking.
|
|
// See OpenTK.Graphics.ErrorHelper for more information.
|
|
// Make sure that no error checking is added to the GetError function,
|
|
// as that would cause infinite recursion!
|
|
if ((Settings.Compatibility & Settings.Legacy.NoDebugHelpers) == 0)
|
|
{
|
|
if (f.TrimmedName != "GetError")
|
|
{
|
|
f.Body.Add("#if DEBUG");
|
|
f.Body.Add("using (new ErrorHelper(GraphicsContext.CurrentContext))");
|
|
f.Body.Add("{");
|
|
if (f.TrimmedName == "Begin")
|
|
f.Body.Add("GraphicsContext.CurrentContext.ErrorChecking = false;");
|
|
f.Body.Add("#endif");
|
|
}
|
|
}
|
|
|
|
if (!f.Unsafe && fixed_statements.Count > 0)
|
|
{
|
|
f.Body.Add("unsafe");
|
|
f.Body.Add("{");
|
|
f.Body.Indent();
|
|
}
|
|
|
|
if (fixed_statements.Count > 0)
|
|
{
|
|
f.Body.AddRange(fixed_statements);
|
|
f.Body.Add("{");
|
|
f.Body.Indent();
|
|
}
|
|
|
|
if (handle_statements.Count > 0)
|
|
{
|
|
f.Body.AddRange(handle_statements);
|
|
f.Body.Add("try");
|
|
f.Body.Add("{");
|
|
f.Body.Indent();
|
|
}
|
|
|
|
// Hack: When creating untyped enum wrappers, it is possible that the wrapper uses an "All"
|
|
// enum, while the delegate uses a specific enum (e.g. "TextureUnit"). For this reason, we need
|
|
// to modify the parameters before generating the call string.
|
|
// Note: We cannot generate a callstring using WrappedDelegate directly, as its parameters will
|
|
// typically be different than the parameters of the wrapper. We need to modify the parameters
|
|
// of the wrapper directly.
|
|
if ((Settings.Compatibility & Settings.Legacy.KeepUntypedEnums) != 0)
|
|
{
|
|
int parameter_index = -1; // Used for comparing wrapper parameters with delegate parameters
|
|
foreach (Parameter p in f.Parameters)
|
|
{
|
|
parameter_index++;
|
|
if (IsEnum(p.Name, enums) && p.QualifiedType != f.WrappedDelegate.Parameters[parameter_index].QualifiedType)
|
|
{
|
|
p.QualifiedType = f.WrappedDelegate.Parameters[parameter_index].QualifiedType;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (assign_statements.Count > 0)
|
|
{
|
|
// Call function
|
|
string method_call = f.CallString();
|
|
if (f.ReturnType.CurrentType.ToLower().Contains("void"))
|
|
f.Body.Add(String.Format("{0};", method_call));
|
|
else if (func.ReturnType.CurrentType.ToLower().Contains("string"))
|
|
f.Body.Add(String.Format("{0} {1} = null; unsafe {{ {1} = new string((sbyte*){2}); }}",
|
|
func.ReturnType.QualifiedType, "retval", method_call));
|
|
else
|
|
f.Body.Add(String.Format("{0} {1} = {2};", f.ReturnType.QualifiedType, "retval", method_call));
|
|
|
|
// Assign out parameters
|
|
f.Body.AddRange(assign_statements);
|
|
|
|
// Return
|
|
if (!f.ReturnType.CurrentType.ToLower().Contains("void"))
|
|
{
|
|
f.Body.Add("return retval;");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Call function and return
|
|
if (f.ReturnType.CurrentType.ToLower().Contains("void"))
|
|
f.Body.Add(String.Format("{0};", f.CallString()));
|
|
else if (func.ReturnType.CurrentType.ToLower().Contains("string"))
|
|
f.Body.Add(String.Format("unsafe {{ return new string((sbyte*){0}); }}",
|
|
f.CallString()));
|
|
else
|
|
f.Body.Add(String.Format("return {0};", f.CallString()));
|
|
}
|
|
|
|
|
|
// Free all allocated GCHandles
|
|
if (handle_statements.Count > 0)
|
|
{
|
|
f.Body.Unindent();
|
|
f.Body.Add("}");
|
|
f.Body.Add("finally");
|
|
f.Body.Add("{");
|
|
f.Body.Indent();
|
|
|
|
f.Body.AddRange(handle_release_statements);
|
|
|
|
f.Body.Unindent();
|
|
f.Body.Add("}");
|
|
}
|
|
|
|
if (!f.Unsafe && fixed_statements.Count > 0)
|
|
{
|
|
f.Body.Unindent();
|
|
f.Body.Add("}");
|
|
}
|
|
|
|
if (fixed_statements.Count > 0)
|
|
{
|
|
f.Body.Unindent();
|
|
f.Body.Add("}");
|
|
}
|
|
|
|
if ((Settings.Compatibility & Settings.Legacy.NoDebugHelpers) == 0)
|
|
{
|
|
if (f.TrimmedName != "GetError")
|
|
{
|
|
f.Body.Add("#if DEBUG");
|
|
if (f.TrimmedName == "End")
|
|
f.Body.Add("GraphicsContext.CurrentContext.ErrorChecking = true;");
|
|
f.Body.Add("}");
|
|
f.Body.Add("#endif");
|
|
}
|
|
}
|
|
|
|
func.Body = f.Body;
|
|
}
|
|
|
|
static bool IsEnum(string s, EnumCollection enums)
|
|
{
|
|
return enums.ContainsKey(s);
|
|
}
|
|
}
|
|
}
|