- Renamed /lib subfolders to lowercase

lib/filesystem/CMemoryStream.cpp

@@ -0,0 +1,40 @@
+#include "StdInc.h"
+#include "CMemoryStream.h"
+
+CMemoryStream::CMemoryStream(const ui8 * data, si64 size) :
+	data(data), size(size), position(0)
+{
+
+}
+
+si64 CMemoryStream::read(ui8 * data, si64 size)
+{
+	si64 toRead = std::min(this->size - tell(), size);
+	std::copy(this->data + position, this->data + position + toRead, data);
+	position += size;
+	return toRead;
+}
+
+si64 CMemoryStream::seek(si64 position)
+{
+	si64 origin = tell();
+	this->position = std::min(position, size);
+	return tell() - origin;
+}
+
+si64 CMemoryStream::tell()
+{
+	return this->position;
+}
+
+si64 CMemoryStream::skip(si64 delta)
+{
+	si64 origin = tell();
+	this->position += std::min(size - origin, delta);
+	return tell() - origin;
+}
+
+si64 CMemoryStream::getSize()
+{
+	return size;
+}