yes I did just move everything into a namespace just so I could get a better print of the FileType enum

CMakeLists.txt

@@ -47,13 +47,13 @@ add_executable(
 		source/quam/main_window.cc
 		source/quam/main_window.h
 		source/quam/main_window.ui
-		source/quam/pak.cc
-		source/quam/pak.h
+		source/quam/pack.cc
+		source/quam/pack.h
 		source/quam/project.cc
 		source/quam/project.h
 		source/quam/project.ui
-		source/quam/wad.cc
-		source/quam/wad.h)
+		source/quam/wad2.cc
+		source/quam/wad2.h)
 
 make_qt_project(quam)
 

source/common.h

@@ -5,6 +5,7 @@
 
 #include <QCoreApplication>
 #include <QDebug>
+#include <QMetaEnum>
 
 #include <algorithm>
 #include <array>
@@ -19,6 +20,48 @@
 #include <utility>
 #include <variant>
 
+inline constexpr std::nullopt_t None{std::nullopt};
+
+template<typename T>
+using Option = std::optional<T>;
+
+struct Error : public std::runtime_error {
+	using std::runtime_error::runtime_error;
+};
+
+struct EnumError          : public Error {using Error::Error;};
+struct FileFormatError    : public Error {using Error::Error;};
+struct UnimplementedError : public Error {using Error::Error;};
+
+struct MemoryStreamBuf : public std::streambuf {
+	MemoryStreamBuf(char *base, std::size_t size) {
+		setg(base, base, base + size);
+	}
+};
+
+struct IMemoryStream : public virtual MemoryStreamBuf, public std::istream {
+	IMemoryStream(char *base, std::size_t size) :
+		MemoryStreamBuf{base, size},
+		std::istream(static_cast<std::streambuf *>(this))
+	{
+	}
+
+	IMemoryStream(char const *base, std::size_t size) :
+		IMemoryStream{const_cast<char *>(base), size}
+	{
+	}
+
+	IMemoryStream(QByteArray &bytes) :
+		IMemoryStream{bytes.data(), std::size_t(bytes.size())}
+	{
+	}
+
+	IMemoryStream(QByteArray const &bytes) :
+		IMemoryStream{bytes.data(), std::size_t(bytes.size())}
+	{
+	}
+};
+
 static inline QString trMain(char const *sourceText,
                              char const *disambiguation = nullptr,
                              int n = -1) {
@@ -52,6 +95,28 @@ static inline std::array<char, N> readBytes(std::istream &st) {
 	return std::move(b);
 }
 
+static inline std::ifstream openReadBin(std::filesystem::path path) {
+	return std::ifstream{path, std::ios_base::in | std::ios_base::binary};
+}
+
+template<std::size_t N>
+static inline std::string ntbsToString(std::array<char, N> const &ntbs) {
+	std::string str;
+	auto zero = std::find(ntbs.cbegin(), ntbs.cend(), '\0');
+	std::copy(ntbs.cbegin(), zero, std::back_inserter(str));
+	return str;
+}
+
+template<typename T>
+static inline char const *enumToString(T const t) {
+	return QMetaEnum::fromType<T>().valueToKey(int(t));
+}
+
+template<typename T>
+static inline int enumMax() {
+	return QMetaEnum::fromType<T>().keyCount();
+}
+
 static inline QDebug operator<<(QDebug debug, std::string const &t) {
 	debug << QString::fromStdString(t);
 	return debug;
@@ -70,16 +135,4 @@ static inline QDebug operator<<(QDebug debug,
 	return debug;
 }
 
-static inline std::ifstream openReadBin(std::filesystem::path path) {
-	return std::ifstream{path, std::ios_base::in | std::ios_base::binary};
-}
-
-template<std::size_t N>
-static inline std::string ntbsToString(std::array<char, N> const &ntbs) {
-	std::string str;
-	auto zero = std::find(ntbs.cbegin(), ntbs.cend(), '\0');
-	std::copy(ntbs.cbegin(), zero, std::back_inserter(str));
-	return str;
-}
-
 // EOF

source/quam/archive.cc

@@ -1,69 +1,87 @@
 #include "quam/archive.h"
 
-#include <QMetaEnum>
+#include "quam/pack.h"
+#include "quam/wad2.h"
 
-Arc::FileType Arc::getFileType(int n) {
-	if(int t = QMetaEnum::fromType<Arc::FileType>().value(n); n != -1) {
-		return Arc::FileType(t);
-	} else {
-		throw std::range_error("invalid file type");
+#include <QIcon>
+
+namespace Arc {
+
+Option<ArchiveType> getArchiveType(std::istream &st) noexcept {
+	try {
+		auto pos = st.tellg();
+		auto magic = readBytes<4>(st);
+		st.seekg(pos);
+		if(magic == std::array{'P', 'A', 'C', 'K'}) {return ArcPack;}
+		if(magic == std::array{'W', 'A', 'D', '2'}) {return ArcWad2;}
+	} catch(...) {
+	}
+	return None;
+}
+
+Dir readArchive(std::istream &st) {
+	switch(auto v = getArchiveType(st);
+	       v.has_value() ? *v : throw FileFormatError("not an archive")) {
+		case ArcPack: return readPack(st);
+		case ArcWad2: return readWad2(st);
 	}
 }
 
-ArcDir::iterator ArcDir::findNode(std::string const &name) {
-	return std::find_if(begin(), end(), [&name](ArcNode const &node) {
+Dir::iterator Dir::findNode(std::string const &name) {
+	return std::find_if(begin(), end(), [&name](Node const &node) {
 		return node.name == name;
 	});
 }
 
-ArcNode::ArcNode(ArcDir &&f, std::string &&n, Arc::FileType t) :
+Node::Node(Dir &&f, std::string &&n, FileType t) :
 	super_type(std::move(f)),
 	name(std::move(n)),
 	type(t)
 {
 }
 
-ArcNode::ArcNode(ArcFile &&f, std::string &&n, Arc::FileType t) :
+Node::Node(File &&f, std::string &&n, FileType t) :
 	super_type(std::move(f)),
 	name(std::move(n)),
 	type(t)
 {
 }
 
-/*
-PakDirModel::PakDirModel(PakDir const *root, QObject *parent) :
+Model::Model(QObject *parent) :
 	QAbstractItemModel{parent},
-	m_root{root}
+	m_dir{nullptr}
 {
 }
 
-PakDirModel::~PakDirModel() {
+Model::~Model() {
 }
 
-QVariant PakDirModel::data(QModelIndex const &index, int role) const {
+QVariant Model::data(QModelIndex const &index, int role) const {
 	if(!index.isValid()) {
 		return QVariant{};
 	}
 
-	auto node = static_cast<PakNode *>(index.internalPointer());
+	auto node = static_cast<Node const *>(index.internalPointer());
 
 	switch(role) {
 		case Qt::DecorationRole:
-			if(index.column() == Arc::ColumnName) {
+			if(index.column() == ColumnName) {
 				auto icon =
-					std::holds_alternative<PakDir>(*node) ? "folder"
+					std::holds_alternative<Dir>(*node) ? "folder"
 					                                      : "text-x-generic";
 				return QVariant{QIcon::fromTheme(icon)};
 			}
 			break;
 		case Qt::DisplayRole:
 			switch(index.column()) {
-				case Arc::ColumnSize:
-					if(auto file = std::get_if<PakFile>(node)) {
+				case ColumnSize:
+					if(auto file = std::get_if<File>(node)) {
 						return QVariant{QString::number(file->size())};
 					}
 					break;
-				case Arc::ColumnName:
+				case ColumnType:
+					return QVariant{tr(enumToString(node->type))};
+				case ColumnName:
 					return QVariant{tr(node->name.data())};
 			}
 		default:
@@ -72,7 +90,7 @@ QVariant PakDirModel::data(QModelIndex const &index, int role) const {
 	return QVariant{};
 }
 
-Qt::ItemFlags PakDirModel::flags(QModelIndex const &index) const {
+Qt::ItemFlags Model::flags(QModelIndex const &index) const {
 	if(!index.isValid()) {
 		return Qt::NoItemFlags;
 	} else {
@@ -83,41 +101,53 @@ Qt::ItemFlags PakDirModel::flags(QModelIndex const &index) const {
 	}
 }
 
-QVariant PakDirModel::headerData(int section,
-                                Qt::Orientation orientation,
-                                int role) const {
+QVariant Model::headerData(int section,
+                           Qt::Orientation orientation,
+                           int role) const {
 	if(orientation == Qt::Horizontal && role == Qt::DisplayRole) {
 		switch(section) {
-			case Arc::ColumnSize: return QVariant{tr("Size")};
-			case Arc::ColumnName: return QVariant{tr("Name")};
+			case ColumnSize: return QVariant{tr("Size")};
+			case ColumnType: return QVariant{tr("Type")};
+			case ColumnName: return QVariant{tr("Name")};
 		}
 	}
 	return QVariant{};
 }
 
-QModelIndex PakDirModel::index(int row,
-                               int col,
-                               QModelIndex const &parent) const {
-	if(!hasIndex(row, col, parent) || row > m_root->size()) {
+QModelIndex Model::index(int row, int col, QModelIndex const &parent) const {
+	if(!m_dir || !hasIndex(row, col, parent) || row > m_dir->size()) {
 		return QModelIndex{};
 	} else {
 		// despite index data being const, this function does not take a const
 		// pointer, which is very annoying!
-		return createIndex(row, col, const_cast<PakNode *>(&m_root->at(row)));
+		return createIndex(row, col, const_cast<Node *>(&m_dir->at(row)));
 	}
 }
 
-QModelIndex PakDirModel::parent(QModelIndex const &) const {
+QModelIndex Model::parent(QModelIndex const &) const {
 	return QModelIndex{};
 }
 
-int PakDirModel::rowCount(QModelIndex const &) const {
-	return m_root->size();
+int Model::rowCount(QModelIndex const &) const {
+	return m_dir ? m_dir->size() : 0;
+}
+
+int Model::columnCount(QModelIndex const &) const {
+	return enumMax<Column>();
+}
+
+Dir *Model::dir() const {
+	return m_dir;
+}
+
+void Model::setDir(Dir *dir) {
+	if(dir != m_dir) {
+		m_dir = dir;
+		emit layoutChanged();
+		emit dirChanged(dir);
+	}
 }
 
-int PakDirModel::columnCount(QModelIndex const &) const {
-	return Arc::ColumnMax;
 }
-*/
 
 // EOF

source/quam/archive.h

@@ -2,62 +2,102 @@
 
 #include "common.h"
 
-#include <QObject>
+#include <QAbstractItemModel>
 #include <QByteArray>
+#include <QObject>
 
 namespace Arc {
 	Q_NAMESPACE
 
+	struct Node;
+	struct Dir;
+
 	enum Column {
 		ColumnSize,
+		ColumnType,
 		ColumnName,
-		ColumnMax,
 	};
 	Q_ENUM_NS(Column)
 
-	enum FileType {
-		FileNormal,
-		FileLabel,
-
-		FilePalette = 64,
-		FileTexture,
-		FilePicture,
-		FileSound,
-		FileMipTexture,
+	enum class FileType {
+		Label,
+		MipTexture,
+		Normal,
+		Palette,
+		Picture,
+		Sound,
+		Texture,
 	};
 	Q_ENUM_NS(FileType)
 
-	Arc::FileType getFileType(int n);
+	enum ArchiveType {
+		ArcPack,
+		ArcWad2,
+	};
+	Q_ENUM_NS(ArchiveType)
+
+	Option<ArchiveType> getArchiveType(std::istream &st) noexcept;
+
+	Dir readArchive(std::istream &st);
+
+	struct Dir : public std::vector<Node> {
+		using std::vector<Node>::vector;
+
+		Dir::iterator findNode(std::string const &name);
+	};
+
+	struct File : public QByteArray {
+		using QByteArray::QByteArray;
+	};
+
+	struct Node : public std::variant<Dir, File> {
+		using super_type = std::variant<Dir, File>;
+
+		Node() = default;
+
+		Node(Dir  &&f, std::string &&n, FileType t = FileType::Normal);
+		Node(File &&f, std::string &&n, FileType t = FileType::Normal);
+
+		Node(Node const &) = default;
+		Node(Node &&) = default;
+
+		std::string name;
+		FileType    type;
+	};
+
+	class Model : public QAbstractItemModel {
+		Q_OBJECT
+
+	public:
+		explicit Model(QObject *parent);
+		~Model();
+
+		QVariant data(QModelIndex const &index, int role) const override;
+		Qt::ItemFlags flags(QModelIndex const &index) const override;
+		QVariant headerData(int section, Qt::Orientation orientation, int role)
+			const override;
+		QModelIndex index(int row,
+	                  	int col,
+	                  	QModelIndex const &parent = QModelIndex())
+			const override;
+		QModelIndex parent(QModelIndex const &index = QModelIndex()) const override;
+		int rowCount(QModelIndex const &index = QModelIndex()) const override;
+		int columnCount(QModelIndex const &index = QModelIndex()) const override;
+
+		Dir *dir() const;
+
+	public slots:
+		void setDir(Dir *dir);
+
+	signals:
+		void dirChanged(Dir *dir);
+
+	private:
+		Dir *m_dir;
+	};
 }
-
-struct ArcNode;
-
-struct ArcDir : public std::vector<ArcNode> {
-	using std::vector<ArcNode>::vector;
-
-	ArcDir::iterator findNode(std::string const &name);
-};
-Q_DECLARE_METATYPE(ArcDir)
-
-struct ArcFile : public QByteArray {
-	using QByteArray::QByteArray;
-};
-Q_DECLARE_METATYPE(ArcFile)
-
-struct ArcNode : public std::variant<ArcDir, ArcFile> {
-	using super_type = std::variant<ArcDir, ArcFile>;
-
-	ArcNode() = default;
-
-	ArcNode(ArcDir  &&f, std::string &&n, Arc::FileType t = Arc::FileNormal);
-	ArcNode(ArcFile &&f, std::string &&n, Arc::FileType t = Arc::FileNormal);
-
-	ArcNode(ArcNode const &) = default;
-	ArcNode(ArcNode &&) = default;
-
-	std::string   name;
-	Arc::FileType type;
-};
-Q_DECLARE_METATYPE(ArcNode)
+Q_DECLARE_METATYPE(Arc::Dir)
+Q_DECLARE_METATYPE(Arc::File)
+Q_DECLARE_METATYPE(Arc::Node)
 
 // EOF

source/quam/main.cc

@@ -1,6 +1,5 @@
-#include "common.h"
+#include "quam/archive.h"
 #include "quam/main_window.h"
-#include "quam/pak.h"
 
 #include <QApplication>
 #include <QCommandLineParser>
@@ -44,9 +43,9 @@ static int modeText(int argc, char *argv[]) {
 	auto fileName = par.value(fileNameOpt).toStdString();
 
 	auto st  = openReadBin(fileName);
-	auto pak = readPak(st);
+	auto arc = Arc::readArchive(st);
 
-	qDebug() << pak;
+	qDebug() << arc;
 
 	return 0;
 }

source/quam/main_window.cc

@@ -1,4 +1,6 @@
 #include "quam/main_window.h"
+
+#include "quam/archive.h"
 #include "quam/project.h"
 
 #include <QErrorMessage>
@@ -25,16 +27,16 @@ void MainWindow::fileOpen() {
 			this,
 			tr("Open Archive"),
 			QString{},
-			tr("Quake PACK file (*.pak);;"
+			tr("Quake archive file (*.pak *.wad);;"
+			   "Quake PACK file (*.pak);;"
 			   "Quake WAD2 file (*.wad);;"
 			   "All files (*)"));
 
 	if(!fileName.isEmpty()) {
 		try {
 			auto st  = openReadBin(fileName.toStdString());
-			auto pak = readPak(st);
-			Q_UNUSED(pak);
-			//new Project{std::move(pak), m_errors, mdiArea};
+			auto arc = Arc::readArchive(st);
+			new Project{std::move(arc), m_errors, mdiArea};
 		} catch(std::exception const &exc) {
 			m_errors->showMessage(tr(exc.what()));
 		}

source/quam/main_window.h

@@ -1,7 +1,7 @@
 #pragma once
 
 #include "common.h"
-#include "quam/pak.h"
+
 #include "quam/ui_main_window.h"
 
 #include <QMainWindow>

source/quam/pack.cc

@@ -1,38 +1,38 @@
-#include "quam/pak.h"
+#include "quam/pack.h"
 
-struct PakHeader {
+struct PackHeader {
 	quint32 dirOffset;
 	quint32 dirNum;
 };
 
-struct PakEntry {
+struct PackEntry {
 	std::string name;
-	ArcFile     file;
+	Arc::File   file;
 };
 
-static constexpr quint32 sizeOfPakEntry = 64;
+static constexpr quint32 sizeOfPackEntry = 64;
 
-static PakHeader readPakHeader(std::istream &st) {
+static PackHeader readPackHeader(std::istream &st) {
 	auto magic = readBytes<4>(st);
 
 	if(magic != std::array{'P', 'A', 'C', 'K'}) {
-		throw std::runtime_error("not a pak file (invalid magic number)");
+		throw FileFormatError("not a pak file (invalid magic number)");
 	}
 
 	auto dirOffset = readLE<quint32>(st);
 	auto dirSize   = readLE<quint32>(st);
 
-	if(dirSize % sizeOfPakEntry != 0) {
-		throw std::runtime_error("invalid directory size");
+	if(dirSize % sizeOfPackEntry != 0) {
+		throw FileFormatError("invalid directory size");
 	}
 
-	PakHeader hdr;
+	PackHeader hdr;
 	hdr.dirOffset = dirOffset;
-	hdr.dirNum    = dirSize / sizeOfPakEntry;
+	hdr.dirNum    = dirSize / sizeOfPackEntry;
 	return hdr;
 }
 
-static PakEntry readPakEntry(std::istream &st) {
+static PackEntry readPackEntry(std::istream &st) {
 	auto entName   = readBytes<56>(st);
 	auto entOffset = readLE<quint32>(st);
 	auto entSize   = readLE<quint32>(st);
@@ -41,7 +41,7 @@ static PakEntry readPakEntry(std::istream &st) {
 
 	st.seekg(entOffset);
 
-	ArcFile file;
+	Arc::File file;
 	file.resize(entSize);
 	st.read(file.data(), entSize);
 
@@ -50,17 +50,17 @@ static PakEntry readPakEntry(std::istream &st) {
 	std::string name = ntbsToString(entName);
 
 	if(name.front() == '/') {
-		throw std::runtime_error("empty root directory name");
+		throw FileFormatError("empty root directory name");
 	}
 
-	PakEntry ent;
+	PackEntry ent;
 	ent.name = std::move(name);
 	ent.file = std::move(file);
 	return ent;
 }
 
-static void insertFile(ArcDir &dir, std::string name, ArcFile file) {
-	std::optional<std::string> next;
+static void insertFile(Arc::Dir &dir, std::string name, Arc::File file) {
+	Option<std::string> next;
 
 	if(auto slash = name.find('/'); slash != std::string::npos) {
 		next = name.substr(slash + 1);
@@ -73,24 +73,24 @@ static void insertFile(ArcDir &dir, std::string name, ArcFile file) {
 		auto ref =
 			existing != dir.end()
 				? *existing
-				: dir.emplace_back(ArcDir{}, std::move(name));
-		insertFile(std::get<ArcDir>(ref), *std::move(next), std::move(file));
+				: dir.emplace_back(Arc::Dir{}, std::move(name));
+		insertFile(std::get<Arc::Dir>(ref), *std::move(next), std::move(file));
 	} else {
 		if(existing != dir.end()) {
-			throw std::runtime_error("duplicate file");
+			throw FileFormatError("duplicate file");
 		}
 		dir.emplace_back(std::move(file), std::move(name));
 	}
 }
 
-ArcDir readPak(std::istream &st) {
-	auto hdr = readPakHeader(st);
+Arc::Dir readPack(std::istream &st) {
+	auto hdr = readPackHeader(st);
 	st.seekg(hdr.dirOffset);
 
-	ArcDir root;
+	Arc::Dir root;
 
 	for(quint32 i = 0; i < hdr.dirNum; i++) {
-		auto ent = readPakEntry(st);
+		auto ent = readPackEntry(st);
 		insertFile(root, std::move(ent.name), std::move(ent.file));
 	}
 

source/quam/pack.h

@@ -1,8 +1,9 @@
 #pragma once
 
 #include "common.h"
+
 #include "quam/archive.h"
 
-ArcDir readPak(std::istream &st);
+Arc::Dir readPack(std::istream &st);
 
 // EOF

source/quam/project.cc

@@ -5,19 +5,32 @@
 #include <QMdiArea>
 #include <QSortFilterProxyModel>
 
-Project::Project(QErrorMessage *errors, QMdiArea *parent) :
+Project::Project(Arc::Dir &&arc, QErrorMessage *errors, QMdiArea *parent) :
 	QMdiSubWindow{parent},
 	Ui::Project{},
-	m_errors{errors}
+	m_arc{std::move(arc)},
+	m_errors{errors},
+	m_model{new Arc::Model{this}},
+	m_sorter{new QSortFilterProxyModel{this}}
 {
 	auto widget = new QWidget(this);
 	setupUi(widget);
 	setWidget(widget);
 	setAttribute(Qt::WA_DeleteOnClose);
 	showMaximized();
+
+	connect(m_model, &Arc::Model::dirChanged, this, &Project::dirChanged);
+
+	m_sorter->setSourceModel(m_model);
+	tableView->setModel(m_sorter);
+	m_model->setDir(&m_arc);
 }
 
 Project::~Project() {
 }
 
+void Project::dirChanged(Arc::Dir *) {
+	tableView->resizeColumnsToContents();
+}
+
 // EOF

source/quam/project.h

@@ -1,7 +1,8 @@
 #pragma once
 
 #include "common.h"
-#include "quam/pak.h"
+
+#include "quam/archive.h"
 #include "quam/ui_project.h"
 
 #include <QMainWindow>
@@ -16,12 +17,16 @@ class Project : public QMdiSubWindow, private Ui::Project {
 	Q_OBJECT
 
 public:
-	explicit Project(QErrorMessage *errors, QMdiArea *parent);
+	explicit Project(Arc::Dir &&arc, QErrorMessage *errors, QMdiArea *parent);
 	virtual ~Project();
 
+private slots:
+	void dirChanged(Arc::Dir *dir);
+
 private:
+	Arc::Dir               m_arc;
 	QErrorMessage         *m_errors;
-	QAbstractItemModel    *m_model;
+	Arc::Model            *m_model;
 	QSortFilterProxyModel *m_sorter;
 };
 

source/quam/wad.cc

@@ -1,81 +0,0 @@
-#include "quam/wad.h"
-
-namespace Wad {
-	enum Compression {
-		CompressNone,
-		CompressLZSS,
-	};
-}
-
-struct WadHeader {
-	quint32 dirOffset;
-	quint32 dirNum;
-};
-
-struct WadEntry {
-	std::string   name;
-	Arc::FileType type;
-	ArcFile       file;
-};
-
-static WadHeader readWadHeader(std::istream &st) {
-	auto magic = readBytes<4>(st);
-
-	if(magic != std::array{'W', 'A', 'D', '2'}) {
-		throw std::runtime_error("not a wad2 file (invalid magic number)");
-	}
-
-	WadHeader hdr;
-	hdr.dirOffset = readLE<quint32>(st);
-	hdr.dirNum    = readLE<quint32>(st);
-	return hdr;
-}
-
-static WadEntry readWadEntry(std::istream &st) {
-	auto entOffset = readLE<quint32>(st);
-	auto entSize   = readLE<quint32>(st);
-	auto entCSize  = readLE<quint32>(st);
-	auto entType   = readByte(st);
-	auto entCompr  = readByte(st);
-	/*   padding  */ readBytes<2>(st);
-	auto entName   = readBytes<16>(st);
-
-	if(entSize != entCSize || entCompr != Wad::CompressNone) {
-		throw std::runtime_error("compressed files not implemented");
-	}
-
-	auto pos = st.tellg();
-
-	st.seekg(entOffset);
-
-	ArcFile file;
-	file.resize(entSize);
-	st.read(file.data(), entSize);
-
-	st.seekg(pos);
-
-	WadEntry ent;
-	ent.name = ntbsToString(entName);
-	ent.file = std::move(file);
-	ent.type = Arc::getFileType(entType);
-	return ent;
-}
-
-ArcDir readWad(std::istream &st) {
-	auto hdr = readWadHeader(st);
-	st.seekg(hdr.dirOffset);
-
-	ArcDir root;
-
-	for(quint32 i = 0; i < hdr.dirNum; i++) {
-		auto ent = readWadEntry(st);
-		if(root.findNode(ent.name) != root.end()) {
-			throw std::runtime_error("duplicate file");
-		}
-		root.emplace_back(std::move(ent.file), std::move(ent.name), ent.type);
-	}
-
-	return root;
-}
-
-// EOF

source/quam/wad2.cc

@@ -0,0 +1,96 @@
+#include "quam/wad2.h"
+
+namespace Wad2 {
+	enum Compression {
+		CompressNone,
+		CompressLZSS,
+	};
+}
+
+struct Wad2Header {
+	quint32 dirNum;
+	quint32 dirOffset;
+};
+
+struct Wad2Entry {
+	std::string   name;
+	Arc::FileType type;
+	Arc::File     file;
+};
+
+static Arc::FileType getFileType(int n) {
+	switch(n) {
+		case 0:  return Arc::FileType::Normal;
+		case 1:  return Arc::FileType::Label;
+		case 64: return Arc::FileType::Palette;
+		case 65: return Arc::FileType::Texture;
+		case 66: return Arc::FileType::Picture;
+		case 67: return Arc::FileType::Sound;
+		case 68: return Arc::FileType::MipTexture;
+		default: throw EnumError("invalid file type");
+	}
+}
+
+static Wad2Header readWad2Header(std::istream &st) {
+	auto magic = readBytes<4>(st);
+
+	if(magic != std::array{'W', 'A', 'D', '2'}) {
+		throw FileFormatError("not a wad2 file (invalid magic number)");
+	}
+
+	Wad2Header hdr;
+	hdr.dirNum    = readLE<quint32>(st);
+	hdr.dirOffset = readLE<quint32>(st);
+	return hdr;
+}
+
+static Wad2Entry readWad2Entry(std::istream &st) {
+	auto entOffset = readLE<quint32>(st);
+	auto entSize   = readLE<quint32>(st);
+	auto entCSize  = readLE<quint32>(st);
+	auto entType   = readByte(st);
+	auto entCompr  = readByte(st);
+	/*   padding  */ readBytes<2>(st);
+	auto entName   = readBytes<16>(st);
+
+	if(entSize != entCSize || entCompr != Wad2::CompressNone) {
+		throw UnimplementedError("compressed files not supported");
+	}
+
+	auto pos = st.tellg();
+
+	st.seekg(entOffset);
+
+	Arc::File file;
+	file.resize(entSize);
+	st.read(file.data(), entSize);
+
+	st.seekg(pos);
+
+	Wad2Entry ent;
+	ent.name = ntbsToString(entName);
+	ent.file = std::move(file);
+	ent.type = getFileType(entType);
+	return ent;
+}
+
+Arc::Dir readWad2(std::istream &st) {
+	auto hdr = readWad2Header(st);
+	st.seekg(hdr.dirOffset);
+
+	Arc::Dir root;
+
+	for(quint32 i = 0; i < hdr.dirNum; i++) {
+		auto ent = readWad2Entry(st);
+		/*
+		if(root.findNode(ent.name) != root.end()) {
+			throw FileFormatError("duplicate file");
+		}
+		*/
+		root.emplace_back(std::move(ent.file), std::move(ent.name), ent.type);
+	}
+
+	return root;
+}
+
+// EOF

source/quam/wad2.h

@@ -1,8 +1,9 @@
 #pragma once
 
 #include "common.h"
+
 #include "quam/archive.h"
 
-ArcDir readWad(std::istream &st);
+Arc::Dir readWad2(std::istream &st);
 
 // EOF