Opentk/Source/Bind/ES/ESGenerator.cs

209 lines
9.2 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Xml.XPath;
using Bind.GL2;
using Bind.Structures;
using Delegate=Bind.Structures.Delegate;
using Enum=Bind.Structures.Enum;
namespace Bind.ES
{
class ESGenerator : Generator
{
public ESGenerator(string nsName, string dirName)
{
if (String.IsNullOrEmpty(nsName))
throw new ArgumentNullException("nsName");
if (dirName == null)
dirName = nsName;
glTypemap = "GL2/gl.tm";
csTypemap = "csharp.tm";
enumSpec = dirName + "/signatures.xml";
enumSpecExt = String.Empty;
glSpec = dirName + "/signatures.xml";
glSpecExt = String.Empty;
functionOverridesFile = dirName + "/overrides.xml";
importsFile = "Core.cs";
delegatesFile = "Delegates.cs";
enumsFile = "Enums.cs";
wrappersFile = "ES.cs";
Settings.ImportsClass = "Core";
Settings.DelegatesClass = "Delegates";
Settings.OutputClass = "GL";
Settings.OutputNamespace = "OpenTK.Graphics." + nsName;
Settings.OutputPath = Path.Combine(Settings.OutputPath, dirName);
}
public override DelegateCollection ReadDelegates(StreamReader specFile)
{
DelegateCollection delegates = new DelegateCollection();
XPathDocument specs = new XPathDocument(specFile);
XPathDocument overrides = new XPathDocument(new StreamReader(Path.Combine(Settings.InputPath, functionOverridesFile)));
foreach (XPathNavigator nav in new XPathNavigator[] {
specs.CreateNavigator().SelectSingleNode("/signatures"),
overrides.CreateNavigator().SelectSingleNode("/overrides/add") })
{
if (nav != null)
{
foreach (XPathNavigator node in nav.SelectChildren("function", String.Empty))
{
var name = node.GetAttribute("name", String.Empty);
// Check whether we are adding to an existing delegate or creating a new one.
Delegate d = null;
if (delegates.ContainsKey(name))
{
d = delegates[name];
}
else
{
d = new Delegate();
d.Name = name;
d.Version = node.GetAttribute("version", String.Empty);
d.Category = node.GetAttribute("category", String.Empty);
d.DeprecatedVersion = node.GetAttribute("deprecated", String.Empty);
d.Deprecated = !String.IsNullOrEmpty(d.DeprecatedVersion);
}
foreach (XPathNavigator param in node.SelectChildren(XPathNodeType.Element))
{
switch (param.Name)
{
case "returns":
d.ReturnType.CurrentType = param.GetAttribute("type", String.Empty);
break;
case "param":
Parameter p = new Parameter();
p.CurrentType = param.GetAttribute("type", String.Empty);
p.Name = param.GetAttribute("name", String.Empty);
string element_count = param.GetAttribute("elementcount", String.Empty);
if (String.IsNullOrEmpty(element_count))
element_count = param.GetAttribute("count", String.Empty);
if (!String.IsNullOrEmpty(element_count))
p.ElementCount = Int32.Parse(element_count);
p.Flow = Parameter.GetFlowDirection(param.GetAttribute("flow", String.Empty));
d.Parameters.Add(p);
break;
}
}
delegates.Add(d);
}
}
}
return delegates;
}
public override Dictionary<string, string> ReadTypeMap(StreamReader specFile)
{
return base.ReadTypeMap(specFile);
}
public override Dictionary<string, string> ReadCSTypeMap(StreamReader specFile)
{
return base.ReadCSTypeMap(specFile);
}
public override EnumCollection ReadEnums(StreamReader specFile)
{
// First, read all enum definitions from spec and override file.
// Afterwards, read all token/enum overrides from overrides file.
// Every single enum is merged into
EnumCollection enums = new EnumCollection();
Enum all = new Enum() { Name = Settings.CompleteEnumName };
XPathDocument specs = new XPathDocument(specFile);
XPathDocument overrides = new XPathDocument(new StreamReader(Path.Combine(Settings.InputPath, functionOverridesFile)));
foreach (XPathNavigator nav in new XPathNavigator[] {
specs.CreateNavigator().SelectSingleNode("/signatures"),
overrides.CreateNavigator().SelectSingleNode("/overrides/add") })
{
if (nav != null)
{
foreach (XPathNavigator node in nav.SelectChildren("enum", String.Empty))
{
Enum e = new Enum()
{
Name = node.GetAttribute("name", String.Empty),
Type = node.GetAttribute("type", String.Empty)
};
if (String.IsNullOrEmpty(e.Name))
throw new InvalidOperationException(String.Format("Empty name for enum element {0}", node.ToString()));
foreach (XPathNavigator param in node.SelectChildren(XPathNodeType.Element))
{
Constant c = null;
switch (param.Name)
{
case "token":
c = new Constant
{
Name = param.GetAttribute("name", String.Empty),
Value = param.GetAttribute("value", String.Empty)
};
break;
case "use":
c = new Constant
{
Name = param.GetAttribute("token", String.Empty),
Reference = param.GetAttribute("enum", String.Empty),
Value = param.GetAttribute("token", String.Empty),
};
break;
default:
throw new NotSupportedException();
}
Utilities.Merge(all, c);
try
{
if (!e.ConstantCollection.ContainsKey(c.Name))
{
e.ConstantCollection.Add(c.Name, c);
}
else if (e.ConstantCollection[c.Name].Value != c.Value)
{
var existing = e.ConstantCollection[c.Name];
if (existing.Reference != null && c.Reference == null)
{
e.ConstantCollection[c.Name] = c;
}
else if (existing.Reference == null && c.Reference != null)
{ } // Keep existing
else
{
Console.WriteLine("[Warning] Conflicting token {0}.{1} with value {2} != {3}",
e.Name, c.Name, e.ConstantCollection[c.Name].Value, c.Value);
}
}
}
catch (ArgumentException ex)
{
Console.WriteLine("[Warning] Failed to add constant {0} to enum {1}: {2}", c.Name, e.Name, ex.Message);
}
}
Utilities.Merge(enums, e);
}
}
}
Utilities.Merge(enums, all);
return enums;
}
}
}