1 files changed, 87 insertions, 0 deletions
diff --git a/thirdparty/thekla_atlas/nvimage/BitMap.h b/thirdparty/thekla_atlas/nvimage/BitMap.h
new file mode 100644
index 0000000000..a285321176
--- /dev/null
+++ b/thirdparty/thekla_atlas/nvimage/BitMap.h
@@ -0,0 +1,87 @@
+// This code is in the public domain -- castanyo@yahoo.es
+
+#pragma once
+#ifndef NV_IMAGE_BITMAP_H
+#define NV_IMAGE_BITMAP_H
+
+#include "nvimage.h"
+
+#include "nvcore/BitArray.h"
+
+namespace nv 
+{
+    /// Bit map. This should probably be called BitImage.
+    class NVIMAGE_CLASS BitMap
+    {
+    public:
+        BitMap() : m_width(0), m_height(0) {}
+        BitMap(uint w, uint h) : m_width(w), m_height(h), m_bitArray(w*h) {}
+
+        uint width() const { return m_width; }
+        uint height() const { return m_height; }
+
+        void resize(uint w, uint h, bool initValue);
+
+        bool bitAt(uint x, uint y) const
+        {
+            nvDebugCheck(x < m_width && y < m_height);
+            return m_bitArray.bitAt(y * m_width + x);
+        }
+        bool bitAt(uint idx) const
+        {
+            return m_bitArray.bitAt(idx);
+        }
+
+        void setBitAt(uint x, uint y)
+        {
+            nvDebugCheck(x < m_width && y < m_height);
+            m_bitArray.setBitAt(y * m_width + x);
+        }
+        void setBitAt(uint idx)
+        {
+            m_bitArray.setBitAt(idx);
+        }
+
+        void clearBitAt(uint x, uint y)
+        {
+            nvDebugCheck(x < m_width && y < m_height);
+            m_bitArray.clearBitAt(y * m_width + x);
+        }
+        void clearBitAt(uint idx)
+        {
+            m_bitArray.clearBitAt(idx);
+        }
+
+        void clearAll()
+        {
+            m_bitArray.clearAll();
+        }
+
+        void setAll()
+        {
+            m_bitArray.setAll();
+        }
+
+        void toggleAll()
+        {
+            m_bitArray.toggleAll();
+        }
+
+        friend void swap(BitMap & a, BitMap & b)
+        {
+            nvCheck(a.m_width == b.m_width);
+            nvCheck(a.m_height == b.m_height);
+            swap(a.m_bitArray, b.m_bitArray);
+        }
+
+    private:
+
+        uint m_width;
+        uint m_height;
+        BitArray m_bitArray;
+
+    };
+
+} // nv namespace
+
+#endif // NV_IMAGE_BITMAP_H