From Carlos García and Paul Baker, Port of Paul Baker's Quake3 BSP loader to OSG by Carlos García.

Added Quake3 BSP plugin.

src/osgPlugins/bsp/BITSET.cpp

@@ -0,0 +1,53 @@
+//////////////////////////////////////////////////////////////////////////////////////////
+//  BITSET.cpp
+//  functions for class for set of bits to represent many true/falses
+//  You may use this code however you wish, but if you do, please credit me and
+//  provide a link to my website in a readme file or similar
+//  Downloaded from: www.paulsprojects.net
+//  Created:  8th August 2002
+//////////////////////////////////////////////////////////////////////////////////////////  
+#include "memory.h"
+#include "BITSET.h"
+
+
+bool BITSET::Init(int numberOfBits)
+{
+  //Delete any memory allocated to bits
+  m_bits.clear();
+
+  //Calculate size
+  m_numBytes=(numberOfBits>>3)+1;
+
+  //Create memory
+  m_bits.reserve(m_numBytes);
+  m_bits_aux=&m_bits[0];
+
+  ClearAll();
+
+  return true;
+}
+
+void BITSET::ClearAll()
+{
+  memset(m_bits_aux, 0, m_numBytes);
+}
+
+void BITSET::SetAll()
+{
+  memset(m_bits_aux, 0xFF, m_numBytes);
+}
+
+void BITSET::Clear(int bitNumber)
+{
+  m_bits_aux[bitNumber>>3] &= ~(1<<(bitNumber & 7));
+}
+
+void BITSET::Set(int bitNumber)
+{
+  m_bits_aux[bitNumber>>3] |= 1<<(bitNumber&7);
+}
+
+unsigned char BITSET::IsSet(int bitNumber) const
+{
+  return m_bits_aux[bitNumber>>3] & 1<<(bitNumber&7);
+}