Modified CppSpecWriter to generate single-file bindings.

Source/Bind/CppSpecWriter.cs

@@ -44,16 +44,224 @@ namespace Bind
         readonly char[] numbers = "0123456789".ToCharArray();
         const string AllowDeprecated = "ALLOW_DEPRECATED_GL";
         const string DigitPrefix = "T"; // Prefix for identifiers that start with a digit
-        const string OutputFileCpp = "glcore++.cpp";
+        const string OutputFileHeader = "gl++.h";
-        const string OutputFileHeader = "glcore++.h";
+
-        const string OutputFileHeaderCompat = "glcompat++.h";
+        #region Verbatim parts of output file
-        const string OutputFileHeaderEnums = "glenums++.h";
+
+        const string GetAddressDefinition = @"
+
+    namespace Internals
+    {
+        #if defined(_WIN32)
+        extern ""C""
+        {
+            typedef int (*PROC)();
+            extern void* __stdcall wglGetCurrentContext();
+            extern PROC __stdcall wglGetProcAddress(const char *procname);
+        }
+        #elif !defined(__APPLE__)
+        extern ""C""
+        {
+            #define APIENTRY
+            extern void* glXGetCurrentContext();
+            extern void (*glXGetProcAddress(const char *procname))();
+        }
+        #endif
+
+        #if defined(__APPLE__)
+            #define APIENTRY
+            #include <stdlib.h>
+            #include <string.h>
+            #include <AvailabilityMacros.h>
+
+            #define APIENTRY
+            extern ""C"" void* CGLGetCurrentContext();
+
+            #ifdef MAC_OS_X_VERSION_10_3
+                #include <dlfcn.h>
+                inline void* NSGLGetProcAddress(const char *name)
+                {
+                  static void* image = NULL;
+                  if (NULL == image)
+                  {
+                    image = dlopen(""/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL"", RTLD_LAZY);
+                  }
+                  return image ? dlsym(image, (const char*)name) : NULL;
+                }
+            #else
+                #include <mach-o/dyld.h>
+                inline void* NSGLGetProcAddress(const char *name)
+                {
+                  static const struct mach_header* image = NULL;
+                  NSSymbol symbol;
+                  char* symbolName;
+                  if (NULL == image)
+                  {
+                    image = NSAddImage(""/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL"", NSADDIMAGE_OPTION_RETURN_ON_ERROR);
+                  }
+                  // prepend a '_' for the Unix C symbol mangling convention
+                  symbolName = malloc(strlen((const char*)name) + 2);
+                  strcpy(symbolName+1, (const char*)name);
+                  symbolName[0] = '_';
+                  symbol = NULL;
+                  symbol = image ? NSLookupSymbolInImage(image, symbolName, NSLOOKUPSYMBOLINIMAGE_OPTION_BIND | NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR) : NULL;
+                  free(symbolName);
+                  return symbol ? NSAddressOfSymbol(symbol) : NULL;
+                }
+            #endif /* MAC_OS_X_VERSION_10_3 */
+        #endif /* __APPLE__ */
+
+        #if defined(__sgi) || defined (__sun)
+            #define APIENTRY
+            #include <dlfcn.h>
+            #include <stdio.h>
+            #include <stdlib.h>
+            inline void* LoadSymbol(const char *name)
+            {
+                // dlopen what?
+                if ((void *h = dlopen(NULL, RTLD_LAZY | RTLD_LOCAL)) == NULL) return NULL;
+                return dlsym(h, ""glXGetProcAddress"");
+            }
+            inline void* dlGetProcAddress(const char *name)
+            {
+                static void* gpa = LoadSymbol(""glXGetProcAddress"");
+
+                if (gpa != NULL)
+                    return ((void*(*)(const char*))gpa)(name);
+                else
+                    return dlsym(h, (const char*)name);
+            }
+            inline void* dlGetCurrentContext()
+            {
+                static void* gpa = LoadSymbol(""glXGetProcAddress"");
+
+                if (gpa != NULL)
+                    return ((void*(*)())gpa)();
+
+                return NULL;
+            }
+        #endif /* __sgi || __sun */
+
+        inline void* GetAddress(const char* name)
+        {
+        #if defined(_WIN32)
+            return (void*)wglGetProcAddress(name);
+        #elif defined(__APPLE__)
+            return (void*)NSGLGetProcAddress(name);
+        #elif defined(__sgi) || defined(__sun)
+            return (void*)dlGetProcAddress(name);
+        #else
+            return (void*)glXGetProcAddress((const char*)name);
+        #endif
+        }
+
+        inline void* GetCurrentContext()
+        {
+        #if defined(_WIN32)
+            return wglGetCurrentContext();
+        #elif defined(__APPLE__)
+            return CGLGetCurrentContext();
+        #elif defined(__sgi) || defined(__sun)
+            return dlGetCurrentContext();
+        #else
+            return glXGetCurrentContext();
+        #endif
+        }
+    }
+         ";
+
+        const string TypeDefinitions = @"
+    template<typename T>
+    struct Enumeration
+    {
+    private:
+        int value;
+
+    public:
+        inline Enumeration(int value)
+        {
+            this->value = value;
+        }
+
+        inline operator int() const
+        {
+            return value;
+        }
+    };
+
+    typedef unsigned int GLenum;
+    typedef unsigned int GLbitfield;
+    typedef int GLsizei; // size_t
+    typedef bool GLboolean;
+    typedef signed char GLbyte;
+    typedef unsigned char GLubyte;
+    typedef short GLshort;
+    typedef unsigned short GLushort;
+    typedef int GLint;
+    typedef unsigned int GLuint;
+    typedef long GLlong;
+    typedef unsigned long GLulong;
+    typedef float GLfloat;
+    typedef float GLclampf;
+    typedef double GLdouble;
+    typedef double GLclampd;
+    typedef void GLvoid;
+    typedef const char* GLstring;
+    #if defined(_MSC_VER) && _MSC_VER < 1400
+        typedef __int64 GLint64EXT;
+        typedef unsigned __int64 GLuint64EXT;
+    #else
+        typedef signed long long GLint64EXT;
+        typedef unsigned long long GLuint64EXT;
+    #endif
+    typedef GLint64EXT  GLint64;
+    typedef GLuint64EXT GLuint64;
+    typedef struct __GLsync { } *GLsync;
+
+    typedef char GLchar;
+    typedef void (*GLDEBUGPROCAMD)(GLuint id,
+        GLenum category, GLenum severity, GLsizei length,
+        const GLchar* message, GLvoid* userParam);
+
+    /* For ARB_debug_output */
+
+    typedef void (*GLDEBUGPROCARB)(GLenum source,
+        GLenum type, GLuint id, GLenum severity,
+        GLsizei length, const GLchar* message, GLvoid* userParam);
+
+    /* For GL_ARB_cl_event */
+
+    typedef struct _cl_context *cl_context;
+    typedef struct _cl_event *cl_event;
+
+    //typedef GLsizei IntPtr;
+    typedef void* IntPtr;
+    typedef GLbyte SByte;
+    typedef GLubyte Byte;
+    typedef GLshort Int16;
+    typedef GLushort UInt16;
+    typedef GLint Int32;
+    typedef GLuint UInt32;
+    typedef GLlong Int64;
+    typedef GLulong UInt64;
+    typedef GLfloat Single;
+    typedef GLdouble Double;
+    typedef GLstring String;
+    typedef char* StringBuilder;
+    typedef GLDEBUGPROCAMD DebugProcAmd;
+    typedef GLDEBUGPROCARB DebugProcArb;
+
+    struct Half
+    {
+    private:
+        UInt16 value;
+    public:
+    };
+         ";
+
+        #endregion
 
         BindStreamWriter sw_h = new BindStreamWriter(Path.GetTempFileName());
-        BindStreamWriter sw_cpp = new BindStreamWriter(Path.GetTempFileName());
-        BindStreamWriter sw_h_compat = new BindStreamWriter(Path.GetTempFileName());
-        BindStreamWriter sw_cpp_compat = new BindStreamWriter(Path.GetTempFileName());
-        BindStreamWriter sw_h_enums = new BindStreamWriter(Path.GetTempFileName());
 
         #region WriteBindings
 
@@ -78,47 +286,35 @@ namespace Bind
 
             Settings.DefaultOutputNamespace = "OpenTK";
 
-            // Enums
-            using (var sw = sw_h_enums)
-            {
-                WriteEnums(sw, enums);
-                sw.Flush();
-                sw.Close();
-            }
-
-            // Core definitions
             using (var sw = sw_h)
             {
-                WriteDefinitions(sw, enums, wrappers, Type.CSTypes, false);
+                sw.WriteLine("#pragma once");
-                sw.Flush();
+                sw.WriteLine("#ifndef GLPP_H");
-                sw.Close();
+                sw.WriteLine("#define GLPP_H");
-            }
+                sw.WriteLine();
 
-            // Compatibility definitions
+                WriteLicense(sw);
-            using (var sw = sw_h_compat)
+
-            {
+                sw.WriteLine("namespace {0}", Settings.OutputNamespace);
-                WriteDefinitions(sw, enums, wrappers, Type.CSTypes, true);
+                sw.WriteLine("{");
-                sw.Flush();
+                sw.Indent();
-                sw.Close();
+
-            }
+                WriteGetAddress(sw);
+                WriteTypes(sw);
+                WriteEnums(sw, enums);
+                WriteDefinitions(sw, enums, wrappers, Type.CSTypes); // Core definitions
+
+                sw.Unindent();
+                sw.WriteLine("}");
+
+                sw.WriteLine("#endif");
 
-            // Core & compatibility declarations
-            using (var sw = sw_cpp)
-            {
-                WriteDeclarations(sw, wrappers, Type.CSTypes);
                 sw.Flush();
                 sw.Close();
             }
 
             string output_header = Path.Combine(Settings.OutputPath, OutputFileHeader);
-            string output_cpp = Path.Combine(Settings.OutputPath, OutputFileCpp);
-            string output_header_compat = Path.Combine(Settings.OutputPath, OutputFileHeaderCompat);
-            string output_header_enums = Path.Combine(Settings.OutputPath, OutputFileHeaderEnums);
-
             Move(sw_h.File, output_header);
-            Move(sw_cpp.File, output_cpp);
-            Move(sw_h_compat.File, output_header_compat);
-            Move(sw_h_enums.File, output_header_enums);
         }
 
         void Move(string file, string dest)
@@ -128,31 +324,43 @@ namespace Bind
             File.Move(file, dest);
         }
 
+        static Delegate WriteWrapper(Delegate last_delegate, Function f, BindStreamWriter sw)
+        {
+            if (last_delegate == f.WrappedDelegate)
+                return last_delegate; // Multiple wrappers for the same delegate are not necessary in C++
+            last_delegate = f.WrappedDelegate;
+
+            var parameters = f.WrappedDelegate.Parameters.ToString()
+                .Replace("String[]", "String*")
+                .Replace("[OutAttribute]", String.Empty);
+            sw.WriteLine("inline {0} {1}{2}", f.WrappedDelegate.ReturnType,
+                f.TrimmedName, parameters);
+            sw.WriteLine("{");
+            sw.Indent();
+            WriteMethodBody(sw, f);
+            sw.Unindent();
+            sw.WriteLine("}");
+            return last_delegate;
+        }
+
+        static Delegate WriteInitDelegate(Delegate last_delegate, BindStreamWriter sw, Function f)
+        {
+            if (last_delegate != f.WrappedDelegate)
+            {
+                sw.WriteLine("Delegates::{0}() = (Delegates::p{0})OpenTK::Internals::GetAddress(\"gl{0}\");", f.WrappedDelegate.Name);
+                last_delegate = f.WrappedDelegate;
+            }
+            return last_delegate;
+        }
+
         #endregion
 
         #region WriteDefinitions
 
         void WriteDefinitions(BindStreamWriter sw,
             EnumCollection enums, FunctionCollection wrappers,
-            Dictionary<string, string> CSTypes, bool deprecated_only)
+            Dictionary<string, string> CSTypes)
         {
-            sw.WriteLine("#pragma once");
-            if (!deprecated_only)
-            {
-                sw.WriteLine("#ifndef GLCOREPP_H");
-                sw.WriteLine("#define GLCOREPP_H");
-            }
-            else
-            {
-                sw.WriteLine("#ifndef GLCOMPATPP_H");
-                sw.WriteLine("#define GLCOMPATPP_H");
-            }
-            sw.WriteLine();
-            WriteLicense(sw);
-
-            sw.WriteLine("namespace {0}", Settings.OutputNamespace);
-            sw.WriteLine("{");
-            sw.Indent();
             sw.WriteLine("namespace {0}", Settings.GLClass);
             sw.WriteLine("{");
             sw.Indent();
@@ -173,36 +381,52 @@ namespace Bind
                 sw.WriteLine("namespace Delegates");
                 sw.WriteLine("{");
                 sw.Indent();
-                var functions = wrappers[extension].Where(f => f.Deprecated == deprecated_only);
+                var functions = wrappers[extension];
                 last_delegate = null;
-                foreach (var f in functions)
+                foreach (var f in functions.Where(f => !f.Deprecated))
                 {
                     WriteDelegate(sw, f.WrappedDelegate, ref last_delegate);
                 }
+                last_delegate = null;
+                sw.WriteLine("#if defined({0})", AllowDeprecated);
+                foreach (var f in functions.Where(f => f.Deprecated))
+                {
+                    WriteDelegate(sw, f.WrappedDelegate, ref last_delegate);
+                }
+                sw.WriteLine("#endif");
 
                 sw.Unindent();
                 sw.WriteLine("};");
 
                 // Write wrappers
-                sw.WriteLine("void Init();");
+                sw.WriteLine("inline void Init()");
-                last_delegate = null;
-                foreach (var f in functions)
-                {
-                    if (last_delegate == f.WrappedDelegate)
-                        continue;
-                    last_delegate = f.WrappedDelegate;
-
-                    var parameters = f.WrappedDelegate.Parameters.ToString()
-                        .Replace("String[]", "String*")
-                        .Replace("[OutAttribute]", String.Empty);
-                    sw.WriteLine("inline {0} {1}{2}", f.WrappedDelegate.ReturnType,
-                        f.TrimmedName, parameters);
                 sw.WriteLine("{");
                 sw.Indent();
-                    WriteMethodBody(sw, f);
+                last_delegate = null;
+                foreach (var f in functions.Where(f => !f.Deprecated))
+                {
+                    last_delegate = WriteInitDelegate(last_delegate, sw, f);
+                }
+                last_delegate = null;
+                sw.WriteLine("#if defined({0})", AllowDeprecated);
+                foreach (var f in functions.Where(f => f.Deprecated))
+                {
+                    last_delegate = WriteInitDelegate(last_delegate, sw, f);
+                }
+                sw.WriteLine("#endif");
                 sw.Unindent();
                 sw.WriteLine("}");
+                last_delegate = null;
+                foreach (var f in functions.Where(f => !f.Deprecated))
+                {
+                    last_delegate = WriteWrapper(last_delegate, f, sw);
                 }
+                sw.WriteLine("#if defined({0})", AllowDeprecated);
+                foreach (var f in functions.Where(f => f.Deprecated))
+                {
+                    last_delegate = WriteWrapper(last_delegate, f, sw);
+                }
+                sw.WriteLine("#endif");
 
                 if (extension != "Core")
                 {
@@ -216,79 +440,10 @@ namespace Bind
 
             sw.Unindent();
             sw.WriteLine("}");
-
-            sw.WriteLine("#endif");
         }
 
         #endregion
 
-        #region WriteDeclarations
-
-        void WriteDeclarations(BindStreamWriter sw, FunctionCollection wrappers,
-           Dictionary<string, string> CSTypes)
-        {
-            sw.WriteLine("#ifdef GLPP_INTERNAL_COMPILE_DECLARATIONS");
-
-            WriteLicense(sw);
-
-            sw.WriteLine("namespace {0}", Settings.OutputNamespace);
-            sw.WriteLine("{");
-            sw.Indent();
-
-            sw.WriteLine("using namespace Internals;");
-
-            // Used to avoid multiple declarations of the same function
-            Delegate last_delegate = null;
-
-            // Declare all functions (deprecated and core).
-            // This is necessary for projects that wish to move from
-            // deprecated APIs to core piece-by-piece.
-            foreach (var ext in wrappers.Keys)
-            {
-                last_delegate = null;
-                var functions = wrappers[ext];
-                foreach (var function in functions)
-                {
-                    if (function.WrappedDelegate == last_delegate)
-                        continue;
-                    last_delegate = function.WrappedDelegate;
-
-                    string path = GetNamespace(ext);
-                    sw.WriteLine("{0}::Delegates::p{1} {0}::Delegates::{1} = 0;", path, function.Name);
-                }
-            }
-            sw.WriteLine();
-
-            // Add Init() methods
-            foreach (var ext in wrappers.Keys)
-            {
-                string path = GetNamespace(ext);
-
-                sw.WriteLine("void {0}::Init()", path);
-                sw.WriteLine("{");
-                sw.Indent();
-
-                last_delegate = null;
-                var functions = wrappers[ext];
-                foreach (var function in functions)
-                {
-                    if (function.WrappedDelegate == last_delegate)
-                        continue;
-                    last_delegate = function.WrappedDelegate;
-
-                    sw.WriteLine("{0}::Delegates::{1} = ({0}::Delegates::p{1})GetAddress(\"gl{1}\");",
-                         path, function.WrappedDelegate.Name);
-                }
-                sw.Unindent();
-                sw.WriteLine("}");
-            }
-
-            sw.Unindent();
-            sw.WriteLine("}");
-
-            sw.WriteLine("#endif");
-        }
-
         static string GetNamespace(string ext)
         {
             if (ext == "Core")
@@ -297,24 +452,10 @@ namespace Bind
                 return String.Format("{0}::{1}", Settings.GLClass, Char.IsDigit(ext[0]) ? DigitPrefix + ext : ext);
         }
 
-        #endregion
-
-        #region ISpecWriter Members
-
         #region WriteEnums
 
         public void WriteEnums(BindStreamWriter sw, EnumCollection enums)
         {
-            sw.WriteLine("#pragma once");
-            sw.WriteLine("#ifndef GLENUMSPP_H");
-            sw.WriteLine("#define GLENUMSPP_H");
-            sw.WriteLine();
-            WriteLicense(sw);
-
-            sw.WriteLine("namespace {0}", Settings.OutputNamespace);
-            sw.WriteLine("{");
-            sw.Indent();
-
             foreach (Enum @enum in enums.Values)
             {
                 sw.WriteLine("struct {0} : Enumeration<{0}>", @enum.Name);
@@ -338,35 +479,30 @@ namespace Bind
                 sw.WriteLine("};");
                 sw.WriteLine();
             }
-
-            sw.Unindent();
-            sw.WriteLine("}");
-
-            sw.WriteLine("#endif");
         }
 
         #endregion
 
         #region WriteTypes
 
-        public void WriteTypes(BindStreamWriter sw, Dictionary<string, string> CSTypes)
+        void WriteTypes(BindStreamWriter sw)
         {
-            sw.WriteLine();
+            sw.WriteLine(TypeDefinitions);
-            foreach (string s in CSTypes.Keys)
-            {
-                sw.WriteLine("typedef {0} {1};", s, CSTypes[s]);
-            }
         }
 
         #endregion
 
-        #region WriteDelegates
+        #region WriteGetAddress
 
-        public void WriteDelegates(BindStreamWriter sw, DelegateCollection delegates)
+        void WriteGetAddress(BindStreamWriter sw)
         {
-            throw new NotSupportedException();
+            sw.WriteLine(GetAddressDefinition);
         }
 
+        #endregion
+
+        #region WriteDelegate
+
         static void WriteDelegate(BindStreamWriter sw, Delegate d, ref Delegate last_delegate)
         {
             // Avoid multiple definitions of the same function
@@ -377,37 +513,29 @@ namespace Bind
                     .Replace("String[]", "String*")
                     .Replace("[OutAttribute]", String.Empty);
                 sw.WriteLine("typedef {0} (APIENTRY *p{1}){2};", d.ReturnType, d.Name, parameters);
-                sw.WriteLine("extern p{0} {0};", d.Name);
+                sw.WriteLine("inline p{0}& {0}()", d.Name);
+                sw.WriteLine("{");
+                sw.Indent();
+                sw.WriteLine("static p{0} address = 0;", d.Name);
+                sw.WriteLine("return address;");
+                sw.Unindent();
+                sw.WriteLine("}");
             }
         }
 
         #endregion
 
-        #region WriteImports
-
-        public void WriteImports(BindStreamWriter sw, DelegateCollection delegates)
-        {
-            throw new NotSupportedException();
-        }
-
-        #endregion
-
         #region WriteWrappers
 
-        public void WriteWrappers(BindStreamWriter sw, FunctionCollection wrappers,
-            Dictionary<string, string> CSTypes)
-        {
-            throw new NotSupportedException();
-        }
-
         static void WriteMethodBody(BindStreamWriter sw, Function f)
         {
+
             var callstring = f.Parameters.CallString()
                 .Replace("String[]", "String*");
             if (f.ReturnType != null && !f.ReturnType.ToString().ToLower().Contains("void"))
-                sw.WriteLine("return Delegates::{0}{1};", f.WrappedDelegate.Name, callstring);
+                sw.WriteLine("return Delegates::{0}(){1};", f.WrappedDelegate.Name, callstring);
             else
-                sw.WriteLine("Delegates::{0}{1};", f.WrappedDelegate.Name, callstring);
+                sw.WriteLine("Delegates::{0}(){1};", f.WrappedDelegate.Name, callstring);
         }
 
         static DocProcessor processor = new DocProcessor(Path.Combine(Settings.DocPath, Settings.DocFile));
@@ -475,8 +603,6 @@ namespace Bind
 
         #endregion
 
-        #endregion
-
         #region WriteLicense
 
         public void WriteLicense(BindStreamWriter sw)

Source/Bind/Main.cs

@@ -251,7 +251,7 @@ namespace Bind
             }
             else
             {
-                throw new NotImplementedException();
+                throw new NotSupportedException();
             }
         }