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Diffstat (limited to 'agg/inc/agg_span_allocator.h')
-rwxr-xr-x | agg/inc/agg_span_allocator.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/agg/inc/agg_span_allocator.h b/agg/inc/agg_span_allocator.h new file mode 100755 index 000000000000..d99c5b9d8936 --- /dev/null +++ b/agg/inc/agg_span_allocator.h @@ -0,0 +1,72 @@ +//---------------------------------------------------------------------------- +// 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_ALLOCATOR_INCLUDED +#define AGG_SPAN_ALLOCATOR_INCLUDED + +#include "agg_basics.h" + +namespace agg +{ + //----------------------------------------------------------span_allocator + template<class ColorT> class span_allocator + { + public: + typedef ColorT color_type; + + //-------------------------------------------------------------------- + ~span_allocator() + { + delete [] m_span; + } + + //-------------------------------------------------------------------- + span_allocator() : + m_max_span_len(0), + m_span(0) + { + } + + //-------------------------------------------------------------------- + color_type* allocate(unsigned max_span_len) + { + if(max_span_len > m_max_span_len) + { + delete [] m_span; + m_span = new color_type[m_max_span_len = max_span_len]; + } + return m_span; + } + + //-------------------------------------------------------------------- + color_type* span() + { + return m_span; + } + + private: + //-------------------------------------------------------------------- + span_allocator(const span_allocator<ColorT>&); + const span_allocator<ColorT>& operator = (const span_allocator<ColorT>&); + + unsigned m_max_span_len; + color_type* m_span; + }; +} + + +#endif + + |