Merge pull request #27 from libAthena/explicit-endian

Added explicit Big/Little method suffix

atdna/main.cpp

@@ -123,7 +123,7 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
 
     std::string GetOpString(const clang::Type* theType, unsigned width,
                             const std::string& fieldName, bool writerPass,
-                            bool& isDNATypeOut)
+                            const std::string& funcPrefix, bool& isDNATypeOut)
     {
         isDNATypeOut = false;
         if (writerPass)
@@ -140,29 +140,29 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                     if (width == 8)
                         return ATHENA_DNA_WRITER ".writeUByte(" + fieldName + ");";
                     else if (width == 16)
-                        return ATHENA_DNA_WRITER ".writeUint16(" + fieldName + ");";
+                        return ATHENA_DNA_WRITER ".writeUint16" + funcPrefix + "(" + fieldName + ");";
                     else if (width == 32)
-                        return ATHENA_DNA_WRITER ".writeUint32(" + fieldName + ");";
+                        return ATHENA_DNA_WRITER ".writeUint32" + funcPrefix + "(" + fieldName + ");";
                     else if (width == 64)
-                        return ATHENA_DNA_WRITER ".writeUint64(" + fieldName + ");";
+                        return ATHENA_DNA_WRITER ".writeUint64" + funcPrefix + "(" + fieldName + ");";
                 }
                 else if (bType->isSignedInteger())
                 {
                     if (width == 8)
                         return ATHENA_DNA_WRITER ".writeByte(" + fieldName + ");";
                     else if (width == 16)
-                        return ATHENA_DNA_WRITER ".writeInt16(" + fieldName + ");";
+                        return ATHENA_DNA_WRITER ".writeInt16" + funcPrefix + "(" + fieldName + ");";
                     else if (width == 32)
-                        return ATHENA_DNA_WRITER ".writeInt32(" + fieldName + ");";
+                        return ATHENA_DNA_WRITER ".writeInt32" + funcPrefix + "(" + fieldName + ");";
                     else if (width == 64)
-                        return ATHENA_DNA_WRITER ".writeInt64(" + fieldName + ");";
+                        return ATHENA_DNA_WRITER ".writeInt64" + funcPrefix + "(" + fieldName + ");";
                 }
                 else if (bType->isFloatingPoint())
                 {
                     if (width == 32)
-                        return ATHENA_DNA_WRITER ".writeFloat(" + fieldName + ");";
+                        return ATHENA_DNA_WRITER ".writeFloat" + funcPrefix + "(" + fieldName + ");";
                     else if (width == 64)
-                        return ATHENA_DNA_WRITER ".writeDouble(" + fieldName + ");";
+                        return ATHENA_DNA_WRITER ".writeDouble" + funcPrefix + "(" + fieldName + ");";
                 }
             }
             else if (theType->isRecordType())
@@ -180,11 +180,11 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                                 context.getTypeInfo(eType).Width != 32)
                                 continue;
                             if (vType->getNumElements() == 2)
-                                return ATHENA_DNA_WRITER ".writeVec2f(" + fieldName + ");";
+                                return ATHENA_DNA_WRITER ".writeVec2f" + funcPrefix + "(" + fieldName + ");";
                             else if (vType->getNumElements() == 3)
-                                return ATHENA_DNA_WRITER ".writeVec3f(" + fieldName + ");";
+                                return ATHENA_DNA_WRITER ".writeVec3f" + funcPrefix + "(" + fieldName + ");";
                             else if (vType->getNumElements() == 4)
-                                return ATHENA_DNA_WRITER ".writeVec4f(" + fieldName + ");";
+                                return ATHENA_DNA_WRITER ".writeVec4f" + funcPrefix + "(" + fieldName + ");";
                         }
                     }
                 }
@@ -211,29 +211,29 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                     if (width == 8)
                         return ATHENA_DNA_READER ".readUByte()";
                     else if (width == 16)
-                        return ATHENA_DNA_READER ".readUint16()";
+                        return ATHENA_DNA_READER ".readUint16" + funcPrefix + "()";
                     else if (width == 32)
-                        return ATHENA_DNA_READER ".readUint32()";
+                        return ATHENA_DNA_READER ".readUint32" + funcPrefix + "()";
                     else if (width == 64)
-                        return ATHENA_DNA_READER ".readUint64()";
+                        return ATHENA_DNA_READER ".readUint64" + funcPrefix + "()";
                 }
                 else if (bType->isSignedInteger())
                 {
                     if (width == 8)
                         return ATHENA_DNA_READER ".readByte()";
                     else if (width == 16)
-                        return ATHENA_DNA_READER ".readInt16()";
+                        return ATHENA_DNA_READER ".readInt16" + funcPrefix + "()";
                     else if (width == 32)
-                        return ATHENA_DNA_READER ".readInt32()";
+                        return ATHENA_DNA_READER ".readInt32" + funcPrefix + "()";
                     else if (width == 64)
-                        return ATHENA_DNA_READER ".readInt64()";
+                        return ATHENA_DNA_READER ".readInt64" + funcPrefix + "()";
                 }
                 else if (bType->isFloatingPoint())
                 {
                     if (width == 32)
-                        return ATHENA_DNA_READER ".readFloat()";
+                        return ATHENA_DNA_READER ".readFloat" + funcPrefix + "()";
                     else if (width == 64)
-                        return ATHENA_DNA_READER ".readDouble()";
+                        return ATHENA_DNA_READER ".readDouble" + funcPrefix + "()";
                 }
             }
             else if (theType->isRecordType())
@@ -251,11 +251,11 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                                 context.getTypeInfo(eType).Width != 32)
                                 continue;
                             if (vType->getNumElements() == 2)
-                                return ATHENA_DNA_READER ".readVec2f()";
+                                return ATHENA_DNA_READER ".readVec2f" + funcPrefix + "()";
                             else if (vType->getNumElements() == 3)
-                                return ATHENA_DNA_READER ".readVec3f()";
+                                return ATHENA_DNA_READER ".readVec3f" + funcPrefix + "()";
                             else if (vType->getNumElements() == 4)
-                                return ATHENA_DNA_READER ".readVec4f()";
+                                return ATHENA_DNA_READER ".readVec4f" + funcPrefix + "()";
                         }
                     }
                 }
@@ -430,7 +430,6 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                 fileOut << "void " << decl->getQualifiedNameAsString() << "::write(Athena::io::IStreamWriter& " ATHENA_DNA_WRITER ") const\n{\n";
             else
                 fileOut << "void " << decl->getQualifiedNameAsString() << "::read(Athena::io::IStreamReader& " ATHENA_DNA_READER ")\n{\n";
-            int currentEndian = -1;
 
             if (baseDNA.size())
             {
@@ -445,7 +444,8 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                 clang::QualType qualType = field->getType();
                 clang::TypeInfo regTypeInfo = context.getTypeInfo(qualType);
                 const clang::Type* regType = qualType.getTypePtrOrNull();
-                if (regType->getTypeClass() == clang::Type::Elaborated)
+                while (regType->getTypeClass() == clang::Type::Elaborated ||
+                       regType->getTypeClass() == clang::Type::Typedef)
                     regType = regType->getUnqualifiedDesugaredType();
 
                 /* Resolve constant array */
@@ -506,24 +506,13 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                                 }
                             }
 
-                            clang::QualType templateType;
-                            std::string ioOp;
-                            bool isDNAType = false;
-                            const clang::TemplateArgument* typeArg = nullptr;
                             for (const clang::TemplateArgument& arg : *tsType)
                             {
-                                if (arg.getKind() == clang::TemplateArgument::Type)
+                                if (arg.getKind() == clang::TemplateArgument::Expression)
-                                {
-                                    typeArg = &arg;
-                                    templateType = arg.getAsType().getCanonicalType();
-                                    const clang::Type* type = arg.getAsType().getCanonicalType().getTypePtr();
-                                    ioOp = GetOpString(type, regTypeInfo.Width, fieldName, p, isDNAType);
-                                }
-                                else if (arg.getKind() == clang::TemplateArgument::Expression)
                                 {
                                     const clang::Expr* expr = arg.getAsExpr();
                                     endianExpr = expr;
-                                    if (expr->isIntegerConstantExpr(endian, context))
+                                    if (!expr->isIntegerConstantExpr(endian, context))
                                     {
                                         if (!p)
                                         {
@@ -557,6 +546,27 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                                 continue;
                             }
 
+                            std::string funcPrefix;
+                            if (endianVal == 0)
+                                funcPrefix = "Little";
+                            else if (endianVal == 1)
+                                funcPrefix = "Big";
+
+                            clang::QualType templateType;
+                            std::string ioOp;
+                            bool isDNAType = false;
+                            const clang::TemplateArgument* typeArg = nullptr;
+                            for (const clang::TemplateArgument& arg : *tsType)
+                            {
+                                if (arg.getKind() == clang::TemplateArgument::Type)
+                                {
+                                    typeArg = &arg;
+                                    templateType = arg.getAsType().getCanonicalType();
+                                    const clang::Type* type = arg.getAsType().getCanonicalType().getTypePtr();
+                                    ioOp = GetOpString(type, regTypeInfo.Width, fieldName, p, funcPrefix, isDNAType);
+                                }
+                            }
+
                             if (ioOp.empty())
                             {
                                 if (!p)
@@ -568,15 +578,6 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                                 continue;
                             }
 
-                            if (currentEndian != endianVal)
-                            {
-                                if (endianVal == 0)
-                                    fileOut << (p ? "    " ATHENA_DNA_WRITER ".setEndian(Athena::LittleEndian);\n" : "    " ATHENA_DNA_READER ".setEndian(Athena::LittleEndian);\n");
-                                else if (endianVal == 1)
-                                    fileOut << (p ? "    " ATHENA_DNA_WRITER ".setEndian(Athena::BigEndian);\n" : "    " ATHENA_DNA_READER ".setEndian(Athena::BigEndian);\n");
-                                currentEndian = endianVal;
-                            }
-
                             fileOut << "    /* " << fieldName << " */\n";
                             if (!p)
                                 fileOut << "    " << fieldName << " = " << ioOp << ";\n";
@@ -608,25 +609,13 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                                 }
                             }
 
-                            clang::QualType templateType;
-                            std::string ioOp;
-                            bool isDNAType = false;
                             std::string sizeExpr;
-                            const clang::TemplateArgument* typeArg = nullptr;
                             const clang::TemplateArgument* sizeArg = nullptr;
                             size_t idx = 0;
                             bool bad = false;
                             for (const clang::TemplateArgument& arg : *tsType)
                             {
-                                if (arg.getKind() == clang::TemplateArgument::Type)
+                                if (arg.getKind() == clang::TemplateArgument::Expression)
-                                {
-                                    typeArg = &arg;
-                                    templateType = arg.getAsType().getCanonicalType();
-                                    clang::TypeInfo typeInfo = context.getTypeInfo(templateType);
-                                    static const std::string elemStr = "elem";
-                                    ioOp = GetOpString(templateType.getTypePtr(), typeInfo.Width, elemStr, p, isDNAType);
-                                }
-                                else if (arg.getKind() == clang::TemplateArgument::Expression)
                                 {
                                     const clang::Expr* expr = arg.getAsExpr()->IgnoreImpCasts();
                                     if (idx == 1)
@@ -685,6 +674,28 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                                 continue;
                             }
 
+                            std::string funcPrefix;
+                            if (endianVal == 0)
+                                funcPrefix = "Little";
+                            else if (endianVal == 1)
+                                funcPrefix = "Big";
+
+                            clang::QualType templateType;
+                            std::string ioOp;
+                            bool isDNAType = false;
+                            const clang::TemplateArgument* typeArg = nullptr;
+                            for (const clang::TemplateArgument& arg : *tsType)
+                            {
+                                if (arg.getKind() == clang::TemplateArgument::Type)
+                                {
+                                    typeArg = &arg;
+                                    templateType = arg.getAsType().getCanonicalType();
+                                    clang::TypeInfo typeInfo = context.getTypeInfo(templateType);
+                                    static const std::string elemStr = "elem";
+                                    ioOp = GetOpString(templateType.getTypePtr(), typeInfo.Width, elemStr, p, funcPrefix, isDNAType);
+                                }
+                            }
+
                             if (ioOp.empty())
                             {
                                 if (!p)
@@ -707,20 +718,14 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                                 continue;
                             }
 
-                            if (currentEndian != endianVal)
+                            if (isDNAType)
-                            {
+                                funcPrefix.clear();
-                                if (endianVal == 0)
-                                    fileOut << (p ? "    " ATHENA_DNA_WRITER ".setEndian(Athena::LittleEndian);\n" : "    " ATHENA_DNA_READER ".setEndian(Athena::LittleEndian);\n");
-                                else if (endianVal == 1)
-                                    fileOut << (p ? "    " ATHENA_DNA_WRITER ".setEndian(Athena::BigEndian);\n" : "    " ATHENA_DNA_READER ".setEndian(Athena::BigEndian);\n");
-                                currentEndian = endianVal;
-                            }
 
                             fileOut << "    /* " << fieldName << " */\n";
                             if (!p)
-                                fileOut << "    " ATHENA_DNA_READER ".enumerate(" << fieldName << ", " << sizeExpr << ");\n";
+                                fileOut << "    " ATHENA_DNA_READER ".enumerate" << funcPrefix << "(" << fieldName << ", " << sizeExpr << ");\n";
                             else
-                                fileOut << "    " ATHENA_DNA_WRITER ".enumerate(" << fieldName << ");\n";
+                                fileOut << "    " ATHENA_DNA_WRITER ".enumerate" << funcPrefix << "(" << fieldName << ");\n";
 
                         }
                         else if (!tsDecl->getName().compare("Buffer"))
@@ -909,21 +914,18 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                                 continue;
                             }
 
-                            if (currentEndian != endianVal)
+                            std::string funcPrefix;
-                            {
+                            if (endianVal == 0)
-                                if (endianVal == 0)
+                                funcPrefix = "Little";
-                                    fileOut << (p ? "    " ATHENA_DNA_WRITER ".setEndian(Athena::LittleEndian);\n" : "    " ATHENA_DNA_READER ".setEndian(Athena::LittleEndian);\n");
+                            else if (endianVal == 1)
-                                else if (endianVal == 1)
+                                funcPrefix = "Big";
-                                    fileOut << (p ? "    " ATHENA_DNA_WRITER ".setEndian(Athena::BigEndian);\n" : "    " ATHENA_DNA_READER ".setEndian(Athena::BigEndian);\n");
-                                currentEndian = endianVal;
-                            }
 
                             fileOut << "    /* " << fieldName << " */\n";
                             if (!p)
-                                fileOut << "    " << fieldName << " = " ATHENA_DNA_READER ".readWString(" << sizeExprStr << ");\n";
+                                fileOut << "    " << fieldName << " = " ATHENA_DNA_READER ".readWString" << funcPrefix << "(" << sizeExprStr << ");\n";
                             else
                             {
-                                fileOut << "    " ATHENA_DNA_WRITER ".writeWString(" << fieldName;
+                                fileOut << "    " ATHENA_DNA_WRITER ".writeWString" << funcPrefix << "(" << fieldName;
                                 if (sizeExprStr.size())
                                     fileOut << ", " << sizeExprStr;
                                 fileOut << ");\n";
@@ -931,6 +933,29 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                         }
                         else if (!tsDecl->getName().compare("WStringAsString"))
                         {
+                            llvm::APSInt endian(64, -1);
+                            const clang::Expr* endianExpr = nullptr;
+                            if (classParms->size() >= 2)
+                            {
+                                const clang::NamedDecl* endianParm = classParms->getParam(1);
+                                if (endianParm->getKind() == clang::Decl::NonTypeTemplateParm)
+                                {
+                                    const clang::NonTypeTemplateParmDecl* nttParm = (clang::NonTypeTemplateParmDecl*)endianParm;
+                                    const clang::Expr* defArg = nttParm->getDefaultArgument();
+                                    endianExpr = defArg;
+                                    if (!defArg->isIntegerConstantExpr(endian, context))
+                                    {
+                                        if (!p)
+                                        {
+                                            clang::DiagnosticBuilder diag = context.getDiagnostics().Report(defArg->getLocStart(), AthenaError);
+                                            diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
+                                            diag.AddSourceRange(clang::CharSourceRange(defArg->getSourceRange(), true));
+                                        }
+                                        continue;
+                                    }
+                                }
+                            }
+
                             const clang::Expr* sizeExpr = nullptr;
                             std::string sizeExprStr;
                             for (const clang::TemplateArgument& arg : *tsType)
@@ -957,12 +982,40 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                                 }
                             }
 
+
+                            int endianVal = endian.getSExtValue();
+                            if (endianVal != 0 && endianVal != 1)
+                            {
+                                if (!p)
+                                {
+                                    if (endianExpr)
+                                    {
+                                        clang::DiagnosticBuilder diag = context.getDiagnostics().Report(endianExpr->getLocStart(), AthenaError);
+                                        diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
+                                        diag.AddSourceRange(clang::CharSourceRange(endianExpr->getSourceRange(), true));
+                                    }
+                                    else
+                                    {
+                                        clang::DiagnosticBuilder diag = context.getDiagnostics().Report(field->getLocStart(), AthenaError);
+                                        diag.AddString("Endian value must be 'BigEndian' or 'LittleEndian'");
+                                        diag.AddSourceRange(clang::CharSourceRange(field->getSourceRange(), true));
+                                    }
+                                }
+                                continue;
+                            }
+
+                            std::string funcPrefix;
+                            if (endianVal == 0)
+                                funcPrefix = "Little";
+                            else if (endianVal == 1)
+                                funcPrefix = "Big";
+
                             fileOut << "    /* " << fieldName << " */\n";
                             if (!p)
-                                fileOut << "    " << fieldName << " = " ATHENA_DNA_READER ".readWStringAsString(" << sizeExprStr << ");\n";
+                                fileOut << "    " << fieldName << " = " ATHENA_DNA_READER ".readWStringAsString" << funcPrefix << "(" << sizeExprStr << ");\n";
                             else
                             {
-                                fileOut << "    " ATHENA_DNA_WRITER ".writeStringAsWString(" << fieldName;
+                                fileOut << "    " ATHENA_DNA_WRITER ".writeStringAsWString" << funcPrefix << "(" << fieldName;
                                 if (sizeExprStr.size())
                                     fileOut << ", " << sizeExprStr;
                                 fileOut << ");\n";
@@ -1131,7 +1184,6 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                         {
                             fileOut << "    /* " << fieldName << " */\n"
                                        "    " << fieldName << (p ? ".write(" ATHENA_DNA_WRITER ");\n" : ".read(" ATHENA_DNA_READER ");\n");
-                            currentEndian = -1;
                             break;
                         }
                     }
@@ -1167,7 +1219,8 @@ class ATDNAEmitVisitor : public clang::RecursiveASTVisitor<ATDNAEmitVisitor>
                 clang::QualType qualType = field->getType();
                 clang::TypeInfo regTypeInfo = context.getTypeInfo(qualType);
                 const clang::Type* regType = qualType.getTypePtrOrNull();
-                if (regType->getTypeClass() == clang::Type::Elaborated)
+                while (regType->getTypeClass() == clang::Type::Elaborated ||
+                       regType->getTypeClass() == clang::Type::Typedef)
                     regType = regType->getUnqualifiedDesugaredType();
 
                 /* Resolve constant array */

atdna/test.hpp

@@ -5,7 +5,6 @@ typedef io::DNAYaml<BigEndian> BigDNA;
 
 struct TESTSubFile : public BigDNA
 {
-    DECL_DNA
     DECL_YAML
     Value<atUint32> sub1;
     Value<atUint32> sub2;
@@ -13,7 +12,6 @@ struct TESTSubFile : public BigDNA
 
 struct TESTSubClassFile : public TESTSubFile
 {
-    DECL_DNA
     DECL_YAML
     Value<atUint32> sub3;
     Value<atUint32> sub4;
@@ -21,7 +19,6 @@ struct TESTSubClassFile : public TESTSubFile
 
 struct TESTSubSubClassFile : public TESTSubClassFile
 {
-    DECL_DNA
     DECL_YAML
     Value<atUint32> sub5;
     Value<atUint32> sub6;
@@ -29,7 +26,6 @@ struct TESTSubSubClassFile : public TESTSubClassFile
 
 struct TESTFile : public BigDNA
 {
-    DECL_DNA
     DECL_YAML
     Value<bool> varBool;
     Value<atUint32> var32;
@@ -39,25 +35,24 @@ struct TESTFile : public BigDNA
 
     struct TESTNestedSubFile : public BigDNA
     {
-        DECL_DNA
         DECL_YAML
         Value<atUint32> nestSub1;
         Value<atUint32> nestSub2;
     } nestedSubFile; 
 
-    TESTSubFile subFile;
+    using TESTSubFileUsing = TESTSubFile;
+    TESTSubFileUsing subFile;
 
     Align<4> align;
 
     struct TESTExplicitSubFile : public BigDNA
     {
-        DECL_EXPLICIT_DNA
         DECL_YAML
         Value<atUint32> explSub1;
         Value<atUint32> explSub2;
     } explSubFile;
 
-    Value<atUint32> arrCount[2];
+    Value<atUint32, LittleEndian> arrCount[2];
     Vector<atUint32, DNA_COUNT(arrCount[0])> array;
 
     Seek<21, Current> seek;

include/Athena/IStreamReader.hpp

@@ -135,6 +135,26 @@ public:
     inline atInt16 readVal(typename std::enable_if<std::is_same<T, atInt16>::value>::type* = 0)
     {return readInt16();}
 
+    inline atInt16 readInt16Little()
+    {
+        atInt16 val;
+        readUBytesToBuf(&val, 2);
+        return utility::LittleInt16(val);
+    }
+    template <class T>
+    inline atInt16 readValLittle(typename std::enable_if<std::is_same<T, atInt16>::value>::type* = 0)
+    {return readInt16Little();}
+
+    inline atInt16 readInt16Big()
+    {
+        atInt16 val;
+        readUBytesToBuf(&val, 2);
+        return utility::BigInt16(val);
+    }
+    template <class T>
+    inline atInt16 readValBig(typename std::enable_if<std::is_same<T, atInt16>::value>::type* = 0)
+    {return readInt16Big();}
+
     /*! \brief Reads a Uint16 and swaps to proper endianness depending on platform
      *  and Stream settings, and advances the current position
      *
@@ -149,6 +169,26 @@ public:
     inline atUint16 readVal(typename std::enable_if<std::is_same<T, atUint16>::value>::type* = 0)
     {return readUint16();}
 
+    inline atUint16 readUint16Little()
+    {
+        atUint16 val;
+        readUBytesToBuf(&val, 2);
+        return utility::LittleUint16(val);
+    }
+    template <class T>
+    inline atUint16 readValLittle(typename std::enable_if<std::is_same<T, atUint16>::value>::type* = 0)
+    {return readUint16Little();}
+
+    inline atUint16 readUint16Big()
+    {
+        atUint16 val;
+        readUBytesToBuf(&val, 2);
+        return utility::BigUint16(val);
+    }
+    template <class T>
+    inline atUint16 readValBig(typename std::enable_if<std::is_same<T, atUint16>::value>::type* = 0)
+    {return readUint16Big();}
+
     /*! \brief Reads a Int32 and swaps to proper endianness depending on platform
      *  and Stream settings, and advances the current position
      *
@@ -167,6 +207,26 @@ public:
     inline atInt32 readVal(typename std::enable_if<std::is_same<T, atInt32>::value>::type* = 0)
     {return readInt32();}
 
+    inline atInt32 readInt32Little()
+    {
+        atInt32 val;
+        readUBytesToBuf(&val, 4);
+        return utility::LittleInt32(val);
+    }
+    template <class T>
+    inline atInt32 readValLittle(typename std::enable_if<std::is_same<T, atInt32>::value>::type* = 0)
+    {return readInt32Little();}
+
+    inline atInt32 readInt32Big()
+    {
+        atInt32 val;
+        readUBytesToBuf(&val, 4);
+        return utility::BigInt32(val);
+    }
+    template <class T>
+    inline atInt32 readValBig(typename std::enable_if<std::is_same<T, atInt32>::value>::type* = 0)
+    {return readInt32Big();}
+
     /*! \brief Reads a Uint32 and swaps to proper endianness depending on platform
      *  and Stream settings, and advances the current position
      *
@@ -181,6 +241,26 @@ public:
     inline atUint32 readVal(typename std::enable_if<std::is_same<T, atUint32>::value>::type* = 0)
     {return readUint32();}
 
+    inline atUint32 readUint32Little()
+    {
+        atUint32 val;
+        readUBytesToBuf(&val, 4);
+        return utility::LittleUint32(val);
+    }
+    template <class T>
+    inline atInt32 readValLittle(typename std::enable_if<std::is_same<T, atUint32>::value>::type* = 0)
+    {return readUint32Little();}
+
+    inline atUint32 readUint32Big()
+    {
+        atUint32 val;
+        readUBytesToBuf(&val, 4);
+        return utility::BigUint32(val);
+    }
+    template <class T>
+    inline atUint32 readValBig(typename std::enable_if<std::is_same<T, atUint32>::value>::type* = 0)
+    {return readUint32Big();}
+
     /*! \brief Reads a Int64 and swaps to proper endianness depending on platform
      *  and Stream settings, and advances the current position
      *
@@ -199,6 +279,26 @@ public:
     inline atInt64 readVal(typename std::enable_if<std::is_same<T, atInt64>::value>::type* = 0)
     {return readInt64();}
 
+    inline atInt64 readInt64Little()
+    {
+        atInt64 val;
+        readUBytesToBuf(&val, 8);
+        return utility::LittleInt64(val);
+    }
+    template <class T>
+    inline atInt64 readValLittle(typename std::enable_if<std::is_same<T, atInt64>::value>::type* = 0)
+    {return readInt64Little();}
+
+    inline atInt64 readInt64Big()
+    {
+        atInt64 val;
+        readUBytesToBuf(&val, 8);
+        return utility::BigInt64(val);
+    }
+    template <class T>
+    inline atInt64 readValBig(typename std::enable_if<std::is_same<T, atInt64>::value>::type* = 0)
+    {return readInt64Big();}
+
     /*! \brief Reads a Uint64 and swaps to proper endianness depending on platform
      *  and Stream settings, and advances the current position
      *
@@ -213,6 +313,26 @@ public:
     inline atUint64 readVal(typename std::enable_if<std::is_same<T, atUint64>::value>::type* = 0)
     {return readUint64();}
 
+    inline atUint64 readUint64Little()
+    {
+        atUint64 val;
+        readUBytesToBuf(&val, 8);
+        return utility::LittleUint64(val);
+    }
+    template <class T>
+    inline atUint64 readValLittle(typename std::enable_if<std::is_same<T, atUint64>::value>::type* = 0)
+    {return readUint64Little();}
+
+    inline atUint64 readUint64Big()
+    {
+        atUint64 val;
+        readUBytesToBuf(&val, 8);
+        return utility::BigUint64(val);
+    }
+    template <class T>
+    inline atUint64 readValBig(typename std::enable_if<std::is_same<T, atUint64>::value>::type* = 0)
+    {return readUint64Big();}
+
     /*! \brief Reads a float and swaps to proper endianness depending on platform
      *  and Stream settings, and advances the current position
      *
@@ -231,6 +351,26 @@ public:
     inline float readVal(typename std::enable_if<std::is_same<T, float>::value>::type* = 0)
     {return readFloat();}
 
+    inline float readFloatLittle()
+    {
+        float val;
+        readUBytesToBuf(&val, 4);
+        return utility::LittleFloat(val);
+    }
+    template <class T>
+    inline float readValLittle(typename std::enable_if<std::is_same<T, float>::value>::type* = 0)
+    {return readFloatLittle();}
+
+    inline float readFloatBig()
+    {
+        float val;
+        readUBytesToBuf(&val, 4);
+        return utility::BigFloat(val);
+    }
+    template <class T>
+    inline float readValBig(typename std::enable_if<std::is_same<T, float>::value>::type* = 0)
+    {return readFloatBig();}
+
     /*! \brief Reads a double and swaps to proper endianness depending on platform
      *  and Stream settings, and advances the current position
      *
@@ -249,6 +389,26 @@ public:
     inline double readVal(typename std::enable_if<std::is_same<T, double>::value>::type* = 0)
     {return readDouble();}
 
+    inline double readDoubleLittle()
+    {
+        double val;
+        readUBytesToBuf(&val, 8);
+        return utility::LittleDouble(val);
+    }
+    template <class T>
+    inline double readValLittle(typename std::enable_if<std::is_same<T, double>::value>::type* = 0)
+    {return readDoubleLittle();}
+
+    inline double readDoubleBig()
+    {
+        double val;
+        readUBytesToBuf(&val, 8);
+        return utility::BigDouble(val);
+    }
+    template <class T>
+    inline double readValBig(typename std::enable_if<std::is_same<T, double>::value>::type* = 0)
+    {return readDoubleBig();}
+
     /*! \brief Reads a bool and advances the current position
      *
      *  \return bool The value at the current address
@@ -289,6 +449,30 @@ public:
     inline atVec2f readVal(typename std::enable_if<std::is_same<T, atVec2f>::value>::type* = 0)
     {return readVec2f();}
 
+    inline atVec2f readVec2fLittle()
+    {
+        atVec2f val;
+        readUBytesToBuf(&val, 8);
+        utility::LittleFloat(val.vec[0]);
+        utility::LittleFloat(val.vec[1]);
+        return val;
+    }
+    template <class T>
+    inline atVec2f readValLittle(typename std::enable_if<std::is_same<T, atVec2f>::value>::type* = 0)
+    {return readVec2fLittle();}
+
+    inline atVec2f readVec2fBig()
+    {
+        atVec2f val;
+        readUBytesToBuf(&val, 8);
+        utility::BigFloat(val.vec[0]);
+        utility::BigFloat(val.vec[1]);
+        return val;
+    }
+    template <class T>
+    inline atVec2f readValBig(typename std::enable_if<std::is_same<T, atVec2f>::value>::type* = 0)
+    {return readVec2fBig();}
+
     /*! \brief Reads an atVec3f (12 bytes) and advances the current position
      *
      *  \return atVec3f The value at the current address
@@ -316,6 +500,32 @@ public:
     inline atVec3f readVal(typename std::enable_if<std::is_same<T, atVec3f>::value>::type* = 0)
     {return readVec3f();}
 
+    inline atVec3f readVec3fLittle()
+    {
+        atVec3f val;
+        readUBytesToBuf(&val, 12);
+        utility::LittleFloat(val.vec[0]);
+        utility::LittleFloat(val.vec[1]);
+        utility::LittleFloat(val.vec[2]);
+        return val;
+    }
+    template <class T>
+    inline atVec3f readValLittle(typename std::enable_if<std::is_same<T, atVec3f>::value>::type* = 0)
+    {return readVec3fLittle();}
+
+    inline atVec3f readVec3fBig()
+    {
+        atVec3f val;
+        readUBytesToBuf(&val, 12);
+        utility::BigFloat(val.vec[0]);
+        utility::BigFloat(val.vec[1]);
+        utility::BigFloat(val.vec[2]);
+        return val;
+    }
+    template <class T>
+    inline atVec3f readValBig(typename std::enable_if<std::is_same<T, atVec3f>::value>::type* = 0)
+    {return readVec3fBig();}
+
     /*! \brief Reads an atVec4f (16 bytes) and advances the current position
      *
      *  \return atVec4f The value at the current address
@@ -345,6 +555,34 @@ public:
     inline atVec4f readVal(typename std::enable_if<std::is_same<T, atVec4f>::value>::type* = 0)
     {return readVec4f();}
 
+    inline atVec4f readVec4fLittle()
+    {
+        atVec4f val;
+        readUBytesToBuf(&val, 16);
+        utility::LittleFloat(val.vec[0]);
+        utility::LittleFloat(val.vec[1]);
+        utility::LittleFloat(val.vec[2]);
+        utility::LittleFloat(val.vec[3]);
+        return val;
+    }
+    template <class T>
+    inline atVec4f readValLittle(typename std::enable_if<std::is_same<T, atVec4f>::value>::type* = 0)
+    {return readVec4fLittle();}
+
+    inline atVec4f readVec4fBig()
+    {
+        atVec4f val;
+        readUBytesToBuf(&val, 16);
+        utility::BigFloat(val.vec[0]);
+        utility::BigFloat(val.vec[1]);
+        utility::BigFloat(val.vec[2]);
+        utility::BigFloat(val.vec[3]);
+        return val;
+    }
+    template <class T>
+    inline atVec4f readValBig(typename std::enable_if<std::is_same<T, atVec4f>::value>::type* = 0)
+    {return readVec4fBig();}
+
     /*! \brief Reads a wide-char string, converts to UTF8 and advances the position in the file
      *
      *  \param fixedLen If non-negative, this is a fixed-length string read
@@ -376,6 +614,56 @@ public:
         return conv.to_bytes(tmp);
     }
 
+    inline std::string readWStringAsStringLittle(atInt32 fixedLen = -1)
+    {
+        std::wstring tmp;
+        atUint16 chr = readUint16Little();
+
+        atInt32 i;
+        for (i = 0 ;; ++i)
+        {
+            if (fixedLen >= 0 && i >= fixedLen - 1)
+                break;
+
+            if (!chr)
+                break;
+
+            tmp.push_back(chr);
+            chr = readUint16Little();
+        }
+
+        if (fixedLen >= 0 && i < fixedLen)
+            seek(fixedLen - i);
+
+        std::wstring_convert<std::codecvt_utf8<wchar_t>> conv;
+        return conv.to_bytes(tmp);
+    }
+
+    inline std::string readWStringAsStringBig(atInt32 fixedLen = -1)
+    {
+        std::wstring tmp;
+        atUint16 chr = readUint16Big();
+
+        atInt32 i;
+        for (i = 0 ;; ++i)
+        {
+            if (fixedLen >= 0 && i >= fixedLen - 1)
+                break;
+
+            if (!chr)
+                break;
+
+            tmp.push_back(chr);
+            chr = readUint16Big();
+        }
+
+        if (fixedLen >= 0 && i < fixedLen)
+            seek(fixedLen - i);
+
+        std::wstring_convert<std::codecvt_utf8<wchar_t>> conv;
+        return conv.to_bytes(tmp);
+    }
+
     /*! \brief Reads a string and advances the position in the file
      *
      *  \param fixedLen If non-negative, this is a fixed-length string read
@@ -438,6 +726,56 @@ public:
     inline std::wstring readVal(typename std::enable_if<std::is_same<T, std::wstring>::value>::type* = 0)
     {return readWString();}
 
+    inline std::wstring readWStringLittle(atInt32 fixedLen = -1)
+    {
+        std::wstring ret;
+        atUint16 chr = readUint16Little();
+
+        atInt32 i;
+        for (i = 1 ; chr != 0 ; ++i)
+        {
+            ret += chr;
+
+            if (fixedLen >= 0 && i >= fixedLen)
+                break;
+
+            chr = readUint16Little();
+        }
+
+        if (fixedLen >= 0 && i < fixedLen)
+            seek(fixedLen - i);
+
+        return ret;
+    }
+    template <class T>
+    inline std::wstring readValLittle(typename std::enable_if<std::is_same<T, std::wstring>::value>::type* = 0)
+    {return readWStringLittle();}
+
+    inline std::wstring readWStringBig(atInt32 fixedLen = -1)
+    {
+        std::wstring ret;
+        atUint16 chr = readUint16Big();
+
+        atInt32 i;
+        for (i = 1 ; chr != 0 ; ++i)
+        {
+            ret += chr;
+
+            if (fixedLen >= 0 && i >= fixedLen)
+                break;
+
+            chr = readUint16Big();
+        }
+
+        if (fixedLen >= 0 && i < fixedLen)
+            seek(fixedLen - i);
+
+        return ret;
+    }
+    template <class T>
+    inline std::wstring readValBig(typename std::enable_if<std::is_same<T, std::wstring>::value>::type* = 0)
+    {return readWStringBig();}
+
     template<class T>
     void enumerate(std::vector<T>& vector, size_t count,
                    typename std::enable_if<std::is_arithmetic<T>::value ||
@@ -451,6 +789,32 @@ public:
             vector.emplace_back(readVal<T>());
     }
 
+    template<class T>
+    void enumerateLittle(std::vector<T>& vector, size_t count,
+                         typename std::enable_if<std::is_arithmetic<T>::value ||
+                                                 std::is_same<T, atVec2f>::value ||
+                                                 std::is_same<T, atVec3f>::value ||
+                                                 std::is_same<T, atVec4f>::value>::type* = 0)
+    {
+        vector.clear();
+        vector.reserve(count);
+        for (size_t i=0 ; i<count ; ++i)
+            vector.emplace_back(readValLittle<T>());
+    }
+
+    template<class T>
+    void enumerateBig(std::vector<T>& vector, size_t count,
+                      typename std::enable_if<std::is_arithmetic<T>::value ||
+                                              std::is_same<T, atVec2f>::value ||
+                                              std::is_same<T, atVec3f>::value ||
+                                              std::is_same<T, atVec4f>::value>::type* = 0)
+    {
+        vector.clear();
+        vector.reserve(count);
+        for (size_t i=0 ; i<count ; ++i)
+            vector.emplace_back(readValBig<T>());
+    }
+
     template<class T>
     void enumerate(std::vector<T>& vector, size_t count,
                    typename std::enable_if<!std::is_arithmetic<T>::value &&

include/Athena/IStreamWriter.hpp

@@ -115,6 +115,20 @@ public:
     }
     inline void writeVal(atInt16 val) {return writeInt16(val);}
 
+    inline void writeInt16Little(atInt16 val)
+    {
+        utility::LittleInt16(val);
+        writeUBytes((atUint8*)&val, 2);
+    }
+    inline void writeValLittle(atInt16 val) {return writeInt16Little(val);}
+
+    inline void writeInt16Big(atInt16 val)
+    {
+        utility::BigInt16(val);
+        writeUBytes((atUint8*)&val, 2);
+    }
+    inline void writeValBig(atInt16 val) {return writeInt16Big(val);}
+
     /*! \brief Writes an Uint16 to the buffer and advances the buffer.
      *         It also swaps the bytes depending on the platform and Stream settings
      *
@@ -124,6 +138,12 @@ public:
     inline void writeUint16(atUint16 val) {writeInt16(val);}
     inline void writeVal(atUint16 val) {return writeUint16(val);}
 
+    inline void writeUint16Little(atUint16 val) {writeInt16Little(val);}
+    inline void writeValLittle(atUint16 val) {return writeUint16Little(val);}
+
+    inline void writeUint16Big(atUint16 val) {writeInt16Big(val);}
+    inline void writeValBig(atUint16 val) {return writeUint16Big(val);}
+
     /*! \brief Writes an Int32 to the buffer and advances the buffer.
      *         It also swaps the bytes depending on the platform and Stream settings.
      *
@@ -140,6 +160,20 @@ public:
     }
     inline void writeVal(atInt32 val) {return writeInt32(val);}
 
+    inline void writeInt32Little(atInt32 val)
+    {
+        utility::LittleInt32(val);
+        writeUBytes((atUint8*)&val, 4);
+    }
+    inline void writeValLittle(atInt32 val) {return writeInt32Little(val);}
+
+    inline void writeInt32Big(atInt32 val)
+    {
+        utility::BigInt32(val);
+        writeUBytes((atUint8*)&val, 4);
+    }
+    inline void writeValBig(atInt32 val) {return writeInt32Big(val);}
+
     /*! \brief Writes an Uint32 to the buffer and advances the buffer.
      *         It also swaps the bytes depending on the platform and Stream settings.
      *
@@ -149,6 +183,12 @@ public:
     inline void writeUint32(atUint32 val) {writeInt32(val);}
     inline void writeVal(atUint32 val) {return writeUint32(val);}
 
+    inline void writeUint32Little(atUint32 val) {writeInt32Little(val);}
+    inline void writeValLittle(atUint32 val) {return writeUint32Little(val);}
+
+    inline void writeUint32Big(atUint32 val) {writeInt32Big(val);}
+    inline void writeValBig(atUint32 val) {return writeUint32Big(val);}
+
     /*! \brief Writes an Int64 to the buffer and advances the buffer.
      *         It also swaps the bytes depending on the platform and Stream settings.
      *
@@ -165,6 +205,20 @@ public:
     }
     inline void writeVal(atInt64 val) {return writeInt64(val);}
 
+    inline void writeInt64Little(atInt64 val)
+    {
+        utility::LittleInt64(val);
+        writeUBytes((atUint8*)&val, 8);
+    }
+    inline void writeValLittle(atInt64 val) {return writeInt64Little(val);}
+
+    inline void writeInt64Big(atInt64 val)
+    {
+        utility::BigInt64(val);
+        writeUBytes((atUint8*)&val, 8);
+    }
+    inline void writeValBig(atInt64 val) {return writeInt64Big(val);}
+
     /*! \brief Writes an Uint64 to the buffer and advances the buffer.
      *         It also swaps the bytes depending on the platform and Stream settings.
      *
@@ -174,6 +228,12 @@ public:
     inline void writeUint64(atUint64 val) {writeInt64(val);}
     inline void writeVal(atUint64 val) {return writeUint64(val);}
 
+    inline void writeUint64Little(atUint64 val) {writeInt64Little(val);}
+    inline void writeValLittle(atUint64 val) {return writeUint64Little(val);}
+
+    inline void writeUint64Big(atUint64 val) {writeInt64Big(val);}
+    inline void writeValBig(atUint64 val) {return writeUint64Big(val);}
+
     /*! \brief Writes an float to the buffer and advances the buffer.
      *         It also swaps the bytes depending on the platform and Stream settings.
      *
@@ -190,6 +250,20 @@ public:
     }
     inline void writeVal(float val) {return writeFloat(val);}
 
+    inline void writeFloatLittle(float val)
+    {
+        utility::LittleFloat(val);
+        writeUBytes((atUint8*)&val, 4);
+    }
+    inline void writeValLittle(float val) {return writeFloatLittle(val);}
+
+    inline void writeFloatBig(float val)
+    {
+        utility::BigFloat(val);
+        writeUBytes((atUint8*)&val, 4);
+    }
+    inline void writeValBig(float val) {return writeFloatBig(val);}
+
     /*! \brief Writes an double to the buffer and advances the buffer.
      *         It also swaps the bytes depending on the platform and Stream settings.
      *
@@ -206,6 +280,20 @@ public:
     }
     inline void writeVal(double val) {return writeDouble(val);}
 
+    inline void writeDoubleLittle(double val)
+    {
+        utility::LittleDouble(val);
+        writeUBytes((atUint8*)&val, 8);
+    }
+    inline void writeValLittle(double val) {return writeDoubleLittle(val);}
+
+    inline void writeDoubleBig(double val)
+    {
+        utility::BigDouble(val);
+        writeUBytes((atUint8*)&val, 8);
+    }
+    inline void writeValBig(double val) {return writeDoubleBig(val);}
+
     /*! \brief Writes an bool to the buffer and advances the buffer.
      *         It also swaps the bytes depending on the platform and Stream settings.
      *
@@ -237,6 +325,22 @@ public:
     }
     inline void writeVal(atVec2f val) {return writeVec2f(val);}
 
+    inline void writeVec2fLittle(atVec2f vec)
+    {
+        utility::LittleFloat(vec.vec[0]);
+        utility::LittleFloat(vec.vec[1]);
+        writeUBytes((atUint8*)&vec, 8);
+    }
+    inline void writeValLittle(atVec2f val) {return writeVec2fLittle(val);}
+
+    inline void writeVec2fBig(atVec2f vec)
+    {
+        utility::BigFloat(vec.vec[0]);
+        utility::BigFloat(vec.vec[1]);
+        writeUBytes((atUint8*)&vec, 8);
+    }
+    inline void writeValBig(atVec2f val) {return writeVec2fBig(val);}
+
     /*! \brief Writes an atVec3f (12 bytes) to the buffer and advances the buffer.
      *         It also swaps the bytes depending on the platform and Stream settings.
      *
@@ -261,6 +365,24 @@ public:
     }
     inline void writeVal(atVec3f val) {return writeVec3f(val);}
 
+    inline void writeVec3fLittle(atVec3f vec)
+    {
+        utility::LittleFloat(vec.vec[0]);
+        utility::LittleFloat(vec.vec[1]);
+        utility::LittleFloat(vec.vec[2]);
+        writeUBytes((atUint8*)&vec, 12);
+    }
+    inline void writeValLittle(atVec3f val) {return writeVec3fLittle(val);}
+
+    inline void writeVec3fBig(atVec3f vec)
+    {
+        utility::BigFloat(vec.vec[0]);
+        utility::BigFloat(vec.vec[1]);
+        utility::BigFloat(vec.vec[2]);
+        writeUBytes((atUint8*)&vec, 12);
+    }
+    inline void writeValBig(atVec3f val) {return writeVec3fBig(val);}
+
     /*! \brief Writes an atVec4f (16 bytes) to the buffer and advances the buffer.
      *         It also swaps the bytes depending on the platform and Stream settings.
      *
@@ -287,6 +409,26 @@ public:
     }
     inline void writeVal(atVec4f val) {return writeVec4f(val);}
 
+    inline void writeVec4fLittle(atVec4f vec)
+    {
+        utility::LittleFloat(vec.vec[0]);
+        utility::LittleFloat(vec.vec[1]);
+        utility::LittleFloat(vec.vec[2]);
+        utility::LittleFloat(vec.vec[3]);
+        writeUBytes((atUint8*)&vec, 16);
+    }
+    inline void writeValLittle(atVec4f val) {return writeVec4fLittle(val);}
+
+    inline void writeVec4fBig(atVec4f vec)
+    {
+        utility::BigFloat(vec.vec[0]);
+        utility::BigFloat(vec.vec[1]);
+        utility::BigFloat(vec.vec[2]);
+        utility::BigFloat(vec.vec[3]);
+        writeUBytes((atUint8*)&vec, 16);
+    }
+    inline void writeValBig(atVec4f val) {return writeVec4fBig(val);}
+
     /*! \brief Converts a UTF8 string to a wide-char string in the buffer and advances the buffer.
      *         It also swaps the bytes depending on the platform and Stream settings.
      *
@@ -332,6 +474,82 @@ public:
         }
     }
 
+    inline void writeStringAsWStringLittle(const std::string& str, atInt32 fixedLen = -1)
+    {
+        std::string tmpStr = "\xEF\xBB\xBF" + str;
+
+        std::wstring_convert<std::codecvt_utf8<wchar_t>> conv;
+        std::wstring tmp = conv.from_bytes(tmpStr);
+
+        if (fixedLen < 0)
+        {
+            for (atUint16 chr : tmp)
+            {
+                if (chr != 0xFEFF)
+                    writeUint16Little(chr);
+            }
+            writeUint16Little(0);
+        }
+        else
+        {
+            auto it = tmp.begin();
+            for (atInt32 i=0 ; i<fixedLen ; ++i)
+            {
+                atUint16 chr;
+                if (it == tmp.end())
+                    chr = 0;
+                else
+                    chr = *it++;
+
+                if (chr == 0xFEFF)
+                {
+                    --i;
+                    continue;
+                }
+
+                writeUint16Little(chr);
+            }
+        }
+    }
+
+    inline void writeStringAsWStringBig(const std::string& str, atInt32 fixedLen = -1)
+    {
+        std::string tmpStr = "\xEF\xBB\xBF" + str;
+
+        std::wstring_convert<std::codecvt_utf8<wchar_t>> conv;
+        std::wstring tmp = conv.from_bytes(tmpStr);
+
+        if (fixedLen < 0)
+        {
+            for (atUint16 chr : tmp)
+            {
+                if (chr != 0xFEFF)
+                    writeUint16Big(chr);
+            }
+            writeUint16Big(0);
+        }
+        else
+        {
+            auto it = tmp.begin();
+            for (atInt32 i=0 ; i<fixedLen ; ++i)
+            {
+                atUint16 chr;
+                if (it == tmp.end())
+                    chr = 0;
+                else
+                    chr = *it++;
+
+                if (chr == 0xFEFF)
+                {
+                    --i;
+                    continue;
+                }
+
+                writeUint16Big(chr);
+            }
+        }
+    }
+
     /*! \brief Writes an string to the buffer and advances the buffer.
      *
      *  \sa Endian
@@ -402,6 +620,64 @@ public:
     }
     inline void writeVal(const std::wstring& val) {return writeWString(val);}
 
+    inline void writeWStringLittle(const std::wstring& str, atInt32 fixedLen = -1)
+    {
+        if (fixedLen < 0)
+        {
+            for (atUint16 c : str)
+            {
+                writeUint16Little(c);
+
+                if (c == L'\0')
+                    break;
+            }
+            writeUint16Little(0);
+        }
+        else
+        {
+            auto it = str.begin();
+            for (atInt32 i=0 ; i<fixedLen ; ++i)
+            {
+                atUint16 chr;
+                if (it == str.end())
+                    chr = 0;
+                else
+                    chr = *it++;
+                writeUint16Little(chr);
+            }
+        }
+    }
+    inline void writeValLittle(const std::wstring& val) {return writeWStringLittle(val);}
+
+    inline void writeWStringBig(const std::wstring& str, atInt32 fixedLen = -1)
+    {
+        if (fixedLen < 0)
+        {
+            for (atUint16 c : str)
+            {
+                writeUint16Big(c);
+
+                if (c == L'\0')
+                    break;
+            }
+            writeUint16Big(0);
+        }
+        else
+        {
+            auto it = str.begin();
+            for (atInt32 i=0 ; i<fixedLen ; ++i)
+            {
+                atUint16 chr;
+                if (it == str.end())
+                    chr = 0;
+                else
+                    chr = *it++;
+                writeUint16Big(chr);
+            }
+        }
+    }
+    inline void writeValBig(const std::wstring& val) {return writeWStringBig(val);}
+
     inline void fill(atUint8 val, atUint64 length)
     {for (atUint64 l=0 ; l<length ; ++l) writeUBytes(&val, 1);}
     inline void fill(atInt8 val, atUint64 length)
@@ -418,6 +694,28 @@ public:
             writeVal(item);
     }
 
+    template <class T>
+    void enumerateLittle(const std::vector<T>& vector,
+                         typename std::enable_if<std::is_arithmetic<T>::value ||
+                                                 std::is_same<T, atVec2f>::value ||
+                                                 std::is_same<T, atVec3f>::value ||
+                                                 std::is_same<T, atVec4f>::value>::type* = 0)
+    {
+        for (const T& item : vector)
+            writeValLittle(item);
+    }
+
+    template <class T>
+    void enumerateBig(const std::vector<T>& vector,
+                      typename std::enable_if<std::is_arithmetic<T>::value ||
+                                              std::is_same<T, atVec2f>::value ||
+                                              std::is_same<T, atVec3f>::value ||
+                                              std::is_same<T, atVec4f>::value>::type* = 0)
+    {
+        for (const T& item : vector)
+            writeValBig(item);
+    }
+
     template <class T>
     void enumerate(const std::vector<T>& vector,
                    typename std::enable_if<!std::is_arithmetic<T>::value &&