73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
//----------------------------------------------------------------------------
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// Anti-Grain Geometry - Version 2.2
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// Copyright (C) 2002-2004 Maxim Shemanarev (http://www.antigrain.com)
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//
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// Permission to copy, use, modify, sell and distribute this software
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// is granted provided this copyright notice appears in all copies.
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// This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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//
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//----------------------------------------------------------------------------
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// Contact: mcseem@antigrain.com
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// mcseemagg@yahoo.com
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// http://www.antigrain.com
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//----------------------------------------------------------------------------
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#ifndef AGG_SPAN_ALLOCATOR_INCLUDED
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#define AGG_SPAN_ALLOCATOR_INCLUDED
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#include "agg_basics.h"
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namespace agg
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{
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//----------------------------------------------------------span_allocator
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template<class ColorT> class span_allocator
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{
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public:
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typedef ColorT color_type;
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//--------------------------------------------------------------------
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~span_allocator()
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{
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delete [] m_span;
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}
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//--------------------------------------------------------------------
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span_allocator() :
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m_max_span_len(0),
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m_span(0)
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{
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}
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//--------------------------------------------------------------------
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color_type* allocate(unsigned max_span_len)
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{
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if(max_span_len > m_max_span_len)
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{
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delete [] m_span;
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m_span = new color_type[m_max_span_len = max_span_len];
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}
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return m_span;
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}
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//--------------------------------------------------------------------
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color_type* span()
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{
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return m_span;
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}
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private:
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//--------------------------------------------------------------------
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span_allocator(const span_allocator<ColorT>&);
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const span_allocator<ColorT>& operator = (const span_allocator<ColorT>&);
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unsigned m_max_span_len;
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color_type* m_span;
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};
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}
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#endif
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