1 files changed, 104 insertions, 0 deletions
diff --git a/lyt/common.h b/lyt/common.h
new file mode 100644
index 0000000..72149d4
--- /dev/null
+++ b/lyt/common.h
@@ -0,0 +1,104 @@
+#ifndef LYTCOMMON_H
+#define LYTCOMMON_H
+
+#include <QtGlobal>
+#include <QtCore/QByteArray>
+#include <QtGui/QColor>
+#include <QtCore/QPointF>
+#include <QtCore/QDataStream>
+#include <QtCore/QStringList>
+#include <QtCore/QDebug>
+#include <QtCore/QVector>
+
+union Magic {
+	char str[4];
+	quint32 value;
+};
+
+union Version {
+	char str[2];
+	quint16 value;
+};
+
+
+
+inline quint32 BitExtract(quint32 value, int count, int start) {
+	// this function relies on heavy compiler optimisation to be efficient :p
+	quint32 mask = 0;
+	for (int i = start; i < start+count; i++) {
+		mask |= (0x80000000 >> i);
+	}
+
+	return (value & mask) >> (32 - (start + count));
+}
+
+
+QByteArray PadByteArray(QByteArray original, int newLength, char padWith='\0');
+
+inline quint32 ColorToRGBA(QColor col) {
+	return (col.red() << 24) | (col.green() << 16) | (col.blue() << 8) | (col.alpha());
+}
+
+inline QColor RGBAToColor(quint32 col) {
+	return QColor(col >> 24, (col >> 16) & 0xFF, (col >> 8) & 0xFF, col & 0xFF);
+}
+
+inline void ReadRGBA8Color(QColor &out, QDataStream &in) {
+	quint32 col;
+	in >> (quint32&)col;
+	out = RGBAToColor(col);
+}
+
+inline void WriteRGBA8Color(QColor &in, QDataStream &out) {
+	out << (quint32)ColorToRGBA(in);
+}
+
+inline void ReadS10Color(QColor &out, QDataStream &in) {
+	quint16 r, g, b, a;
+	in >> (quint16&)r;
+	in >> (quint16&)g;
+	in >> (quint16&)b;
+	in >> (quint16&)a;
+	out.setRgb(r, g, b, a);
+}
+
+inline void WriteS10Color(QColor &in, QDataStream &out) {
+	out << (quint16)in.red();
+	out << (quint16)in.green();
+	out << (quint16)in.blue();
+	out << (quint16)in.alpha();
+}
+
+
+
+
+struct LYTTexCoords {
+	QPointF coord[4];
+};
+
+inline void ReadPointF(QDataStream &stream, QPointF &point) {
+	float x, y;
+	stream >> x;
+	stream >> y;
+	point.setX(x);
+	point.setY(y);
+}
+
+inline void WritePointF(QDataStream &stream, const QPointF &point) {
+	stream << (float)point.x();
+	stream << (float)point.y();
+}
+
+inline void InitDataStream(QDataStream &stream) {
+	stream.setByteOrder(QDataStream::BigEndian);
+	stream.setVersion(QDataStream::Qt_4_5);
+}
+
+QStringList ReadStringList(QDataStream &in);
+
+QString ReadFixedLengthASCII(QDataStream &in, int length);
+void WriteFixedLengthASCII(QDataStream &out, QString str, int length);
+
+
+
+#endif // LYTCOMMON_H