1 files changed, 74 insertions, 0 deletions
diff --git a/contrib/moses2/legacy/Bitmaps.cpp b/contrib/moses2/legacy/Bitmaps.cpp
new file mode 100644
index 000000000..879ad9d71
--- /dev/null
+++ b/contrib/moses2/legacy/Bitmaps.cpp
@@ -0,0 +1,74 @@
+#include <boost/foreach.hpp>
+#include "Bitmaps.h"
+#include "Util2.h"
+
+using namespace std;
+
+namespace Moses2
+{
+
+Bitmaps::Bitmaps(MemPool &pool) :
+    m_pool(pool)
+{
+}
+
+Bitmaps::~Bitmaps()
+{
+}
+
+void Bitmaps::Init(size_t inputSize,
+    const std::vector<bool> &initSourceCompleted)
+{
+  m_initBitmap = new (m_pool.Allocate<Bitmap>()) Bitmap(m_pool, inputSize);
+  m_initBitmap->Init(initSourceCompleted);
+  m_coll[m_initBitmap];
+}
+
+const Bitmap &Bitmaps::GetNextBitmap(const Bitmap &bm, const Range &range)
+{
+  Bitmap *newBM;
+  if (m_recycler.empty()) {
+    newBM = new (m_pool.Allocate<Bitmap>()) Bitmap(m_pool, bm.GetSize());
+  }
+  else {
+    newBM = m_recycler.top();
+    m_recycler.pop();
+  }
+
+  newBM->Init(bm, range);
+
+  Coll::const_iterator iter = m_coll.find(newBM);
+  if (iter == m_coll.end()) {
+    m_coll[newBM] = NextBitmaps();
+    return *newBM;
+  }
+  else {
+    m_recycler.push(newBM);
+
+    return *iter->first;
+  }
+}
+
+const Bitmap &Bitmaps::GetBitmap(const Bitmap &bm, const Range &range)
+{
+  Coll::iterator iter = m_coll.find(&bm);
+  assert(iter != m_coll.end());
+
+  const Bitmap *newBM;
+  NextBitmaps &next = iter->second;
+  NextBitmaps::const_iterator iterNext = next.find(&range);
+  if (iterNext == next.end()) {
+    // not seen the link yet.
+    newBM = &GetNextBitmap(bm, range);
+    next[&range] = newBM;
+  }
+  else {
+    // link exist
+    //std::cerr << "link exists" << endl;
+    newBM = iterNext->second;
+  }
+  return *newBM;
+}
+
+}
+