Method LoadHeader

Source/FamiTrackerDocIO.cpp:380–436

}

void CFamiTrackerDocIO::LoadHeader(CFamiTrackerModule &modfile, int ver) {
	if (ver == 1) {
		// Single track
		auto &Song = *modfile.GetSong(0);
		modfile.GetChannelOrder().ForeachChannel([&] (stChannelID i) {
			try {
				// Channel type (unused)
				AssertRange<MODULE_ERROR_STRICT>(file_.GetBlockChar(), 0, (int)CHANID_COUNT - 1, "Channel type index");
				// Effect columns
				Song.SetEffectColumnCount(i, AssertRange<MODULE_ERROR_STRICT>(
					file_.GetBlockChar(), 0, MAX_EFFECT_COLUMNS - 1, "Effect column count") + 1);
			}
			catch (CModuleException &e) {
				e.AppendError("At track + " + std::string {FTEnv.GetSoundChipService()->GetChannelFullName(i)});
				throw e;
			}
		});
	}
	else if (ver >= 2) {
		// Multiple tracks
		unsigned Tracks = AssertRange(file_.GetBlockChar() + 1, 1, static_cast<int>(MAX_TRACKS), "Song count");	// 0 means one song
		if (!modfile.GetSong(Tracks - 1)) // allocate
			throw CModuleException::WithMessage("Unable to allocate song");

		// Song names
		if (ver >= 3)
			modfile.VisitSongs([&] (CSongData &song) { song.SetTitle(file_.ReadString()); });

		modfile.GetChannelOrder().ForeachChannel([&] (stChannelID i) {
			try {
				AssertRange<MODULE_ERROR_STRICT>(file_.GetBlockChar(), 0, (int)CHANID_COUNT - 1, "Channel type index"); // Channel type (unused)
				modfile.VisitSongs([&] (CSongData &song, unsigned index) {
					try {
						song.SetEffectColumnCount(i, AssertRange<MODULE_ERROR_STRICT>(
							file_.GetBlockChar(), 0, MAX_EFFECT_COLUMNS - 1, "Effect column count") + 1);
					}
					catch (CModuleException &e) {
						e.AppendError("At song " + conv::from_int(index + 1) + ',');
						throw e;
					}
				});
			}
			catch (CModuleException &e) {
				e.AppendError("At track " + std::string {FTEnv.GetSoundChipService()->GetChannelFullName(i)} + ',');
				throw e;
			}
		});

		if (ver >= 4)		// // // 050B
			for (unsigned int i = 0; i < Tracks; ++i) {
				int First = static_cast<unsigned char>(file_.GetBlockChar());
				int Second = static_cast<unsigned char>(file_.GetBlockChar());
				if (i == 0)
					modfile.SetHighlight({First, Second});
			}
	}
}