752 lines
25 KiB
C#
752 lines
25 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;
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using Bind.Structures;
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namespace Bind
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{
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using Delegate = Bind.Structures.Delegate;
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using Enum = Bind.Structures.Enum;
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using Type = Bind.Structures.Type;
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sealed class CppSpecWriter : ISpecWriter
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{
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readonly char[] numbers = "0123456789".ToCharArray();
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const string AllowDeprecated = "GLPP_COMPATIBLE";
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const string DigitPrefix = "T"; // Prefix for identifiers that start with a digit
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const string OutputFileHeader = "gl++.h";
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IBind Generator { get; set; }
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Settings Settings { get { return Generator.Settings; } }
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#region Verbatim parts of output file
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const string GetAddressDefinition = @"
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namespace Internals
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{
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#if defined(_WIN32)
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extern ""C""
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{
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#define GLPP_APIENTRY __stdcall
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typedef int (*PROC)();
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extern void* __stdcall wglGetCurrentContext();
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extern PROC __stdcall wglGetProcAddress(const char *procname);
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extern void* __stdcall LoadLibraryA(const char *libname);
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extern PROC __stdcall GetProcAddress(void *module, const char *procname);
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}
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inline void*& LoadGLAddress()
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{
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static void* address = LoadLibraryA(""opengl32.dll"");
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return address;
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}
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inline void*& GetGLAddress()
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{
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static void* address = LoadGLAddress();
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return address;
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}
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inline PROC winGetAddress(const char *procname)
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{
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PROC addr = GetProcAddress(GetGLAddress(), procname);
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return addr ? addr : wglGetProcAddress(procname);
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}
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#elif !defined(__APPLE__)
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extern ""C""
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{
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#define GLPP_APIENTRY
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extern void* glXGetCurrentContext();
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extern void (*glXGetProcAddress(const char *procname))();
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}
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#endif
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#if defined(__APPLE__)
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#define GLPP_APIENTRY
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#include <stdlib.h>
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#include <string.h>
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#include <AvailabilityMacros.h>
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extern ""C"" void* CGLGetCurrentContext();
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#ifdef MAC_OS_X_VERSION_10_3
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#include <dlfcn.h>
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inline void* NSGLGetProcAddress(const char *name)
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{
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static void* image = NULL;
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if (NULL == image)
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{
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image = dlopen(""/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL"", RTLD_LAZY);
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}
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return image ? dlsym(image, (const char*)name) : NULL;
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}
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#else
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#include <mach-o/dyld.h>
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inline void* NSGLGetProcAddress(const char *name)
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{
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static const struct mach_header* image = NULL;
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NSSymbol symbol;
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char* symbolName;
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if (NULL == image)
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{
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image = NSAddImage(""/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL"", NSADDIMAGE_OPTION_RETURN_ON_ERROR);
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}
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// prepend a '_' for the Unix C symbol mangling convention
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symbolName = malloc(strlen((const char*)name) + 2);
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strcpy(symbolName+1, (const char*)name);
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symbolName[0] = '_';
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symbol = NULL;
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symbol = image ? NSLookupSymbolInImage(image, symbolName, NSLOOKUPSYMBOLINIMAGE_OPTION_BIND | NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR) : NULL;
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free(symbolName);
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return symbol ? NSAddressOfSymbol(symbol) : NULL;
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}
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#endif /* MAC_OS_X_VERSION_10_3 */
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#endif /* __APPLE__ */
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#if defined(__sgi) || defined (__sun)
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#define GLPP_APIENTRY
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#include <dlfcn.h>
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#include <stdio.h>
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#include <stdlib.h>
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inline void* LoadSymbol(const char *name)
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{
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// dlopen what?
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if ((void *h = dlopen(NULL, RTLD_LAZY | RTLD_LOCAL)) == NULL) return NULL;
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return dlsym(h, ""glXGetProcAddress"");
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}
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inline void* dlGetProcAddress(const char *name)
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{
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static void* gpa = LoadSymbol(""glXGetProcAddress"");
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if (gpa != NULL)
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return ((void*(*)(const char*))gpa)(name);
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else
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return dlsym(h, (const char*)name);
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}
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inline void* dlGetCurrentContext()
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{
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static void* gpa = LoadSymbol(""glXGetProcAddress"");
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if (gpa != NULL)
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return ((void*(*)())gpa)();
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return NULL;
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}
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#endif /* __sgi || __sun */
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inline void* GetAddress(const char* name)
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{
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#if defined(_WIN32)
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return (void*)winGetAddress(name);
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#elif defined(__APPLE__)
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return (void*)NSGLGetProcAddress(name);
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#elif defined(__sgi) || defined(__sun)
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return (void*)dlGetProcAddress(name);
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#else
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return (void*)glXGetProcAddress((const char*)name);
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#endif
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}
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inline void* GetCurrentContext()
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{
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#if defined(_WIN32)
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return wglGetCurrentContext();
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#elif defined(__APPLE__)
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return CGLGetCurrentContext();
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#elif defined(__sgi) || defined(__sun)
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return dlGetCurrentContext();
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#else
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return glXGetCurrentContext();
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#endif
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}
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}
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";
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const string TypeDefinitions = @"
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template<typename T>
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struct Enumeration
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{
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private:
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int value;
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public:
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inline Enumeration(int value)
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{
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this->value = value;
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}
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inline operator int() const
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{
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return value;
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}
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};
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typedef unsigned int GLenum;
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typedef unsigned int GLbitfield;
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typedef int GLsizei; // size_t
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typedef bool GLboolean;
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typedef signed char GLbyte;
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typedef unsigned char GLubyte;
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typedef short GLshort;
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typedef unsigned short GLushort;
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typedef int GLint;
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typedef unsigned int GLuint;
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typedef long GLlong;
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typedef unsigned long GLulong;
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typedef float GLfloat;
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typedef float GLclampf;
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typedef double GLdouble;
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typedef double GLclampd;
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typedef void GLvoid;
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typedef GLint* GLintptr;
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typedef GLsizei* GLsizeiptr;
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typedef const char* GLstring;
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#if defined(_MSC_VER) && _MSC_VER < 1400
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typedef __int64 GLint64EXT;
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typedef unsigned __int64 GLuint64EXT;
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#else
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typedef signed long long GLint64EXT;
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typedef unsigned long long GLuint64EXT;
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#endif
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typedef GLint64EXT GLint64;
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typedef GLuint64EXT GLuint64;
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typedef struct __GLsync { } *GLsync;
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typedef struct __GLhandleARB { } *GLhandleARB;
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typedef GLintptr GLintptrARB;
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typedef GLsizeiptr GLsizeiptrARB;
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typedef char GLchar;
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typedef void (*GLDEBUGPROCAMD)(GLuint id,
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GLenum category, GLenum severity, GLsizei length,
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const GLchar* message, GLvoid* userParam);
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/* For ARB_debug_output */
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typedef void (*GLDEBUGPROCARB)(GLenum source,
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GLenum type, GLuint id, GLenum severity,
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GLsizei length, const GLchar* message, GLvoid* userParam);
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/* For GL_ARB_cl_event */
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typedef struct cl_context *_cl_context;
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typedef struct cl_event *_cl_event;
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//typedef GLsizei IntPtr;
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typedef void* IntPtr;
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typedef GLbyte SByte;
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typedef GLubyte Byte;
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typedef GLshort Int16;
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typedef GLushort UInt16;
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typedef GLint Int32;
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typedef GLuint UInt32;
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typedef GLlong Int64;
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typedef GLulong UInt64;
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typedef GLfloat Single;
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typedef GLdouble Double;
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typedef GLstring String;
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typedef char* StringBuilder;
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typedef GLDEBUGPROCAMD DebugProcAmd;
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typedef GLDEBUGPROCARB DebugProcArb;
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typedef struct _GLvdpauSurfaceNV *GLvdpauSurfaceNV;
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struct Half
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{
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private:
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GLushort value;
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public:
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};
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typedef Half GLhalf;
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typedef GLhalf GLhalfNV;
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";
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#endregion
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BindStreamWriter sw_h = new BindStreamWriter(Path.GetTempFileName());
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#region WriteBindings
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public void WriteBindings(IBind generator)
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{
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Generator = generator;
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WriteBindings(generator.Delegates, generator.Wrappers, generator.Enums);
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}
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void WriteBindings(DelegateCollection delegates, FunctionCollection wrappers, EnumCollection enums)
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{
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Console.WriteLine("Writing bindings to {0}", Settings.OutputPath);
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if (!Directory.Exists(Settings.OutputPath))
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Directory.CreateDirectory(Settings.OutputPath);
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// Hack: Fix 3dfx extension category so it doesn't start with a digit
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if (wrappers.ContainsKey("3dfx"))
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{
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var three_dee_fx = wrappers["3dfx"];
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wrappers.Remove("3dfx");
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wrappers.Add(DigitPrefix + "3dfx", three_dee_fx);
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}
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Settings.DefaultOutputNamespace = "OpenTK";
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using (var sw = sw_h)
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{
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sw.WriteLine("#pragma once");
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sw.WriteLine("#ifndef GLPP_H");
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sw.WriteLine("#define GLPP_H");
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sw.WriteLine();
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WriteLicense(sw);
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sw.WriteLine("namespace {0}", Settings.OutputNamespace);
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sw.WriteLine("{");
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sw.Indent();
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WriteGetAddress(sw);
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WriteTypes(sw);
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WriteEnums(sw, enums);
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WriteDefinitions(sw, enums, wrappers, Generator.CSTypes); // Core definitions
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sw.Unindent();
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sw.WriteLine("}");
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sw.WriteLine("#endif");
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sw.Flush();
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sw.Close();
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}
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string output_header = Path.Combine(Settings.OutputPath, OutputFileHeader);
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Move(sw_h.File, output_header);
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}
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void Move(string file, string dest)
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{
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if (File.Exists(dest))
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File.Delete(dest);
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File.Move(file, dest);
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}
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static Delegate WriteWrapper(Delegate last_delegate, Function f, BindStreamWriter sw)
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{
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//if (last_delegate == f.WrappedDelegate)
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// return last_delegate; // Multiple wrappers for the same delegate are not necessary in C++
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var valid = true;
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var parameters = GenerateParameterString(f, true, out valid);
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if (!valid)
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return last_delegate;
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last_delegate = f.WrappedDelegate;
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sw.WriteLine("inline {0} {1}({2})", f.WrappedDelegate.ReturnType,
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f.TrimmedName, parameters);
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sw.WriteLine("{");
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sw.Indent();
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WriteMethodBody(sw, f);
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sw.Unindent();
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sw.WriteLine("}");
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return last_delegate;
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}
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static string GenerateParameterString(Delegate d, bool check_validity, out bool valid)
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{
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if (d == null)
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throw new ArgumentNullException("d");
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valid = true;
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var sb = new StringBuilder();
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if (d.Parameters.Count > 0)
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{
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foreach (var p in d.Parameters)
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{
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if (p.CurrentType.ToLower() == "string[]")
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p.CurrentType = "char**";
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if (p.CurrentType.ToLower() == "string")
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p.CurrentType = "char*";
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if (p.Reference)
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{
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if (/*check_validity &&*/ p.Generic)
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{
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// We don't need generic parameters in C++ and void& is illegal.
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valid = false;
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return String.Empty;
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}
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if (p.Flow != FlowDirection.Out)
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sb.Append("const ");
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sb.Append(p.QualifiedType);
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sb.Append('*', p.Array);
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sb.Append("&");
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}
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else if (p.Array > 0)
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{
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// Hack: generic parameters with array types are
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// not real (i.e. they are created by the generator
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// specifically for managed languages). We don't
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// need them in C++.
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// Todo: move C#/Java-specific code to their respective
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// classes, instead of the main generator.
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// Note: the 1-dimensional array is handled through the pointer case below.
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// (C# differentiates between arrays and pointers, C++ doesn't).
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if (check_validity && (p.Generic || p.Array == 1))
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{
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valid = false;
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return String.Empty;
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}
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if (p.Flow != FlowDirection.Out)
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sb.Append("const ");
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sb.Append(p.Generic ? "void" : p.QualifiedType); // We don't need generic parameters in C++.
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sb.Append('*', p.Array);
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}
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else if (p.Pointer > 0)
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{
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if (p.Flow != FlowDirection.Out)
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sb.Append("const ");
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sb.Append(p.Generic ? "void" : p.QualifiedType); // We don't need generic parameters in C++.
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sb.Append('*', p.Pointer);
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}
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else if (p.CurrentType == "IntPtr")
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{
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if (p.Flow != FlowDirection.Out)
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sb.Append("const ");
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sb.Append("void*");
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}
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else
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{
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sb.Append(p.QualifiedType);
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}
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sb.Append(" ");
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sb.Append(p.Name);
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sb.Append(", ");
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}
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if (d.Parameters.Count > 0)
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sb.Remove(sb.Length - 2, 2);
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}
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return sb.ToString();
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}
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static Delegate WriteInitDelegate(Delegate last_delegate, BindStreamWriter sw, Function f)
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{
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if (last_delegate != f.WrappedDelegate)
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{
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sw.WriteLine("Delegates::{0}() = (Delegates::p{0})OpenTK::Internals::GetAddress(\"gl{0}\");", f.WrappedDelegate.Name);
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last_delegate = f.WrappedDelegate;
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}
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return last_delegate;
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}
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#endregion
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#region WriteDefinitions
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void WriteDefinitions(BindStreamWriter sw,
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EnumCollection enums, FunctionCollection wrappers,
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IDictionary<string, string> CSTypes)
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{
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sw.WriteLine("namespace {0}", Settings.GLClass);
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sw.WriteLine("{");
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sw.Indent();
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foreach (string extension in wrappers.Keys)
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{
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if (extension != "Core")
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{
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sw.WriteLine("namespace {0}", extension);
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sw.WriteLine("{");
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sw.Indent();
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}
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// Avoid multiple definitions of the same function
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Delegate last_delegate = null;
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// Write delegates
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sw.WriteLine("namespace Delegates");
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sw.WriteLine("{");
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sw.Indent();
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var functions = wrappers[extension];
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last_delegate = null;
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foreach (var f in functions.Where(f => !f.Deprecated))
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{
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WriteDelegate(sw, f.WrappedDelegate, ref last_delegate);
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}
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last_delegate = null;
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sw.WriteLine("#if defined({0})", AllowDeprecated);
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foreach (var f in functions.Where(f => f.Deprecated))
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{
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WriteDelegate(sw, f.WrappedDelegate, ref last_delegate);
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}
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sw.WriteLine("#endif");
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sw.Unindent();
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sw.WriteLine("};");
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// Write wrappers
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sw.WriteLine("inline void Init()");
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sw.WriteLine("{");
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sw.Indent();
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last_delegate = null;
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foreach (var f in functions.Where(f => !f.Deprecated))
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{
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last_delegate = WriteInitDelegate(last_delegate, sw, f);
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}
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last_delegate = null;
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sw.WriteLine("#if defined({0})", AllowDeprecated);
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foreach (var f in functions.Where(f => f.Deprecated))
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{
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last_delegate = WriteInitDelegate(last_delegate, sw, f);
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}
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sw.WriteLine("#endif");
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sw.Unindent();
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sw.WriteLine("}");
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last_delegate = null;
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foreach (var f in functions.Where(f => !f.Deprecated))
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{
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last_delegate = WriteWrapper(last_delegate, f, sw);
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}
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sw.WriteLine("#if defined({0})", AllowDeprecated);
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foreach (var f in functions.Where(f => f.Deprecated))
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{
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last_delegate = WriteWrapper(last_delegate, f, sw);
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}
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sw.WriteLine("#endif");
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if (extension != "Core")
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{
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sw.Unindent();
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sw.WriteLine("};");
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}
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}
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sw.Unindent();
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sw.WriteLine("};");
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}
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#endregion
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string GetNamespace(string ext)
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{
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if (ext == "Core")
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|
return Settings.GLClass;
|
|
else
|
|
return String.Format("{0}::{1}", Settings.GLClass, Char.IsDigit(ext[0]) ? DigitPrefix + ext : ext);
|
|
}
|
|
|
|
#region WriteEnums
|
|
|
|
public void WriteEnums(BindStreamWriter sw, EnumCollection enums)
|
|
{
|
|
foreach (Enum @enum in enums.Values)
|
|
{
|
|
sw.WriteLine("struct {0} : Enumeration<{0}>", @enum.Name);
|
|
sw.WriteLine("{");
|
|
sw.Indent();
|
|
sw.WriteLine("inline {0}(int value) : Enumeration<{0}>(value) {{ }}", @enum.Name);
|
|
sw.WriteLine("enum");
|
|
sw.WriteLine("{");
|
|
sw.Indent();
|
|
foreach (var c in @enum.ConstantCollection.Values)
|
|
{
|
|
sw.WriteLine(String.Format("{0} = {1}{2},",
|
|
c.Name,
|
|
!String.IsNullOrEmpty(c.Reference) ? (c.Reference + Settings.NamespaceSeparator) : "",
|
|
!String.IsNullOrEmpty(c.Reference) ? c.Value : c.Value.ToLower()));
|
|
}
|
|
sw.Unindent();
|
|
sw.WriteLine("};");
|
|
sw.Unindent();
|
|
sw.WriteLine("};");
|
|
sw.WriteLine();
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region WriteTypes
|
|
|
|
void WriteTypes(BindStreamWriter sw)
|
|
{
|
|
sw.WriteLine(TypeDefinitions);
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region WriteGetAddress
|
|
|
|
void WriteGetAddress(BindStreamWriter sw)
|
|
{
|
|
sw.WriteLine(GetAddressDefinition);
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region WriteDelegate
|
|
|
|
static void WriteDelegate(BindStreamWriter sw, Delegate d, ref Delegate last_delegate)
|
|
{
|
|
// Avoid multiple definitions of the same function
|
|
if (d != last_delegate)
|
|
{
|
|
last_delegate = d;
|
|
bool valid = true;
|
|
var parameters = GenerateParameterString(d, false, out valid);
|
|
sw.WriteLine("typedef {0} (GLPP_APIENTRY *p{1})({2});", d.ReturnType, d.Name, parameters);
|
|
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 WriteWrappers
|
|
|
|
static void WriteMethodBody(BindStreamWriter sw, Function f)
|
|
{
|
|
//var callstring = f.Parameters.CallString()
|
|
// .Replace("String[]", "String*");
|
|
|
|
var callstring = GenerateCallString(f);
|
|
|
|
if (f.ReturnType != null && !f.ReturnType.ToString().ToLower().Contains("void"))
|
|
sw.Write("return ");
|
|
sw.WriteLine("Delegates::{0}()({1});", f.WrappedDelegate.Name, callstring);
|
|
}
|
|
|
|
static object GenerateCallString(Function f)
|
|
{
|
|
var sb = new StringBuilder();
|
|
foreach (var p in f.Parameters)
|
|
{
|
|
if (p.Reference)
|
|
sb.Append("&"); // Convert to pointer
|
|
sb.Append(p.Name);
|
|
sb.Append(", ");
|
|
}
|
|
if (f.Parameters.Count > 0)
|
|
sb.Remove(sb.Length - 2, 2);
|
|
return sb.ToString();
|
|
}
|
|
|
|
DocProcessor processor_;
|
|
DocProcessor Processor
|
|
{
|
|
get
|
|
{
|
|
if (processor_ == null)
|
|
processor_ = new DocProcessor(Path.Combine(Settings.DocPath, Settings.DocFile));
|
|
return processor_;
|
|
}
|
|
}
|
|
Dictionary<string, string> docfiles;
|
|
void WriteDocumentation(BindStreamWriter sw, Function f)
|
|
{
|
|
if (docfiles == null)
|
|
{
|
|
docfiles = new Dictionary<string, string>();
|
|
foreach (string file in Directory.GetFiles(Settings.DocPath))
|
|
{
|
|
docfiles.Add(Path.GetFileName(file), file);
|
|
}
|
|
}
|
|
|
|
string docfile = null;
|
|
try
|
|
{
|
|
docfile = Settings.FunctionPrefix + f.WrappedDelegate.Name + ".xml";
|
|
if (!docfiles.ContainsKey(docfile))
|
|
docfile = Settings.FunctionPrefix + f.TrimmedName + ".xml";
|
|
if (!docfiles.ContainsKey(docfile))
|
|
docfile = Settings.FunctionPrefix + f.TrimmedName.TrimEnd(numbers) + ".xml";
|
|
|
|
string doc = null;
|
|
if (docfiles.ContainsKey(docfile))
|
|
{
|
|
doc = Processor.ProcessFile(docfiles[docfile]);
|
|
}
|
|
if (doc == null)
|
|
{
|
|
doc = "/// <summary></summary>";
|
|
}
|
|
|
|
int summary_start = doc.IndexOf("<summary>") + "<summary>".Length;
|
|
string warning = "[deprecated: v{0}]";
|
|
string category = "[requires: {0}]";
|
|
if (f.Deprecated)
|
|
{
|
|
warning = String.Format(warning, f.DeprecatedVersion);
|
|
doc = doc.Insert(summary_start, warning);
|
|
}
|
|
|
|
if (f.Extension != "Core" && !String.IsNullOrEmpty(f.Category))
|
|
{
|
|
category = String.Format(category, f.Category);
|
|
doc = doc.Insert(summary_start, category);
|
|
}
|
|
else if (!String.IsNullOrEmpty(f.Version))
|
|
{
|
|
if (f.Category.StartsWith("VERSION"))
|
|
category = String.Format(category, "v" + f.Version);
|
|
else
|
|
category = String.Format(category, "v" + f.Version + " and " + f.Category);
|
|
doc = doc.Insert(summary_start, category);
|
|
}
|
|
|
|
sw.WriteLine(doc);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Console.WriteLine("[Warning] Error processing file {0}: {1}", docfile, e.ToString());
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region WriteLicense
|
|
|
|
public void WriteLicense(BindStreamWriter sw)
|
|
{
|
|
sw.WriteLine(File.ReadAllText(Path.Combine(Settings.InputPath, Settings.LicenseFile)));
|
|
sw.WriteLine();
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
}
|