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diff --git a/agg/inc/agg_span_converter.h b/agg/inc/agg_span_converter.h
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+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.3
+// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
+//
+// Permission to copy, use, modify, sell and distribute this software
+// is granted provided this copyright notice appears in all copies.
+// This software is provided "as is" without express or implied
+// warranty, and with no claim as to its suitability for any purpose.
+//
+//----------------------------------------------------------------------------
+// Contact: mcseem@antigrain.com
+// mcseemagg@yahoo.com
+// http://www.antigrain.com
+//----------------------------------------------------------------------------
+
+#ifndef AGG_SPAN_CONVERTER_INCLUDED
+#define AGG_SPAN_CONVERTER_INCLUDED
+
+#include "agg_basics.h"
+
+namespace agg
+{
+ //----------------------------------------------------------span_converter
+ template<class SpanGenerator, class Conv> class span_converter
+ {
+ public:
+ typedef typename SpanGenerator::color_type color_type;
+
+ span_converter(SpanGenerator& span_gen, Conv& conv) :
+ m_span_gen(&span_gen), m_conv(&conv) {}
+
+ //--------------------------------------------------------------------
+ void prepare(unsigned max_span_len)
+ {
+ m_span_gen->prepare(max_span_len);
+ }
+
+ //--------------------------------------------------------------------
+ color_type* generate(int x, int y, unsigned len)
+ {
+ color_type* span = m_span_gen->generate(x, y, len);
+ m_conv->convert(span, x, y, len);
+ return span;
+ }
+
+ private:
+ SpanGenerator* m_span_gen;
+ Conv* m_conv;
+ };
+
+}
+
+#endif