101 lines
2.1 KiB
C++
101 lines
2.1 KiB
C++
#include "quam/wad2.h"
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namespace Wad2 {
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enum Compression {
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CompressNone,
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CompressLZSS,
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};
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}
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struct Wad2Header {
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quint32 dirNum;
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quint32 dirOffset;
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};
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struct Wad2Entry {
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std::string name;
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Arc::FileType type;
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Arc::File file;
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};
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static Arc::FileType getFileType(int n) {
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switch(n) {
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case 0: return Arc::FileType::Normal;
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case 1: return Arc::FileType::Label;
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case 64: return Arc::FileType::Palette;
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case 65: return Arc::FileType::Texture;
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case 66: return Arc::FileType::Picture;
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case 67: return Arc::FileType::Sound;
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case 68: return Arc::FileType::MipTexture;
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default: throw EnumError("invalid file type");
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}
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}
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static Wad2Header readWad2Header(std::istream &st) {
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auto magic = readBytes<4>(st);
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if(magic != std::array{'W', 'A', 'D', '2'}) {
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throw FileFormatError("not a wad2 file (invalid magic number)");
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}
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Wad2Header hdr;
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hdr.dirNum = readLE<quint32>(st);
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hdr.dirOffset = readLE<quint32>(st);
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return hdr;
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}
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static Wad2Entry readWad2Entry(std::istream &st) {
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auto entOffset = readLE<quint32>(st);
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auto entSize = readLE<quint32>(st);
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auto entCSize = readLE<quint32>(st);
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auto entType = readByte(st);
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auto entCompr = readByte(st);
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/* padding */ readBytes<2>(st);
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auto entName = readBytes<16>(st);
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if(entSize != entCSize || entCompr != Wad2::CompressNone) {
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throw UnimplementedError("compressed files not supported");
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}
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auto pos = st.tellg();
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st.seekg(entOffset);
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Arc::File file;
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file.resize(entSize);
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st.read(file.data(), entSize);
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st.seekg(pos);
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Wad2Entry ent;
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ent.name = ntbsToString(entName);
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ent.file = std::move(file);
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ent.type = getFileType(entType);
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return ent;
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}
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Arc::Dir readWad2(std::istream &st) {
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auto hdr = readWad2Header(st);
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st.seekg(hdr.dirOffset);
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Arc::Dir root;
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for(quint32 i = 0; i < hdr.dirNum; i++) {
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auto ent = readWad2Entry(st);
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root.emplace_back(std::move(ent.file), std::move(ent.name), ent.type);
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}
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return root;
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}
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Wad2Validator::Wad2Validator(QObject *parent) :
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QValidator{parent}
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{
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}
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QValidator::State Wad2Validator::validate(QString &input, int &pos) const {
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return QValidator::Acceptable;
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}
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// EOF
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