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-rwxr-xr-xagg/inc/agg_scanline_p.h197
1 files changed, 0 insertions, 197 deletions
diff --git a/agg/inc/agg_scanline_p.h b/agg/inc/agg_scanline_p.h
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index 633119a..0000000
--- a/agg/inc/agg_scanline_p.h
+++ /dev/null
@@ -1,197 +0,0 @@
-//----------------------------------------------------------------------------
-// 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
-//----------------------------------------------------------------------------
-//
-// Class scanline_p - a general purpose scanline container with packed spans.
-//
-//----------------------------------------------------------------------------
-#ifndef AGG_SCANLINE_P_INCLUDED
-#define AGG_SCANLINE_P_INCLUDED
-
-#include "agg_basics.h"
-
-namespace agg
-{
-
- //==============================================================scanline_p
- //
- // This is a general purpose scaline container which supports the interface
- // used in the rasterizer::render(). See description of agg_scanline_u
- // for details.
- //
- //------------------------------------------------------------------------
- template<class T> class scanline_p
- {
- public:
- typedef T cover_type;
-
- struct span
- {
- int16 x;
- int16 len; // If negative, it's a solid span, covers is valid
- const T* covers;
- };
-
- typedef span* iterator;
- typedef const span* const_iterator;
-
- ~scanline_p()
- {
- delete [] m_spans;
- delete [] m_covers;
- }
-
- scanline_p() :
- m_max_len(0),
- m_last_x(0x7FFFFFF0),
- m_covers(0),
- m_cover_ptr(0),
- m_spans(0),
- m_cur_span(0)
- {
- }
-
- void reset(int min_x, int max_x);
- void add_cell(int x, unsigned cover);
- void add_cells(int x, unsigned len, const T* covers);
- void add_span(int x, unsigned len, unsigned cover);
- void finalize(int y_) { m_y = y_; }
- void reset_spans();
-
- int y() const { return m_y; }
- unsigned num_spans() const { return unsigned(m_cur_span - m_spans); }
- const_iterator begin() const { return m_spans + 1; }
-
- private:
- scanline_p(const scanline_p<T>&);
- const scanline_p<T>& operator = (const scanline_p<T>&);
-
- unsigned m_max_len;
- int m_last_x;
- int m_y;
- T* m_covers;
- T* m_cover_ptr;
- span* m_spans;
- span* m_cur_span;
- };
-
-
- //------------------------------------------------------------------------
- template<class T>
- void scanline_p<T>::reset(int min_x, int max_x)
- {
- unsigned max_len = max_x - min_x + 3;
- if(max_len > m_max_len)
- {
- delete [] m_spans;
- delete [] m_covers;
- m_covers = new T [max_len];
- m_spans = new span [max_len];
- m_max_len = max_len;
- }
- m_last_x = 0x7FFFFFF0;
- m_cover_ptr = m_covers;
- m_cur_span = m_spans;
- m_cur_span->len = 0;
- }
-
-
- //------------------------------------------------------------------------
- template<class T>
- void scanline_p<T>::reset_spans()
- {
- m_last_x = 0x7FFFFFF0;
- m_cover_ptr = m_covers;
- m_cur_span = m_spans;
- m_cur_span->len = 0;
- }
-
-
- //------------------------------------------------------------------------
- template<class T>
- void scanline_p<T>::add_cell(int x, unsigned cover)
- {
- *m_cover_ptr = (T)cover;
- if(x == m_last_x+1 && m_cur_span->len > 0)
- {
- m_cur_span->len++;
- }
- else
- {
- m_cur_span++;
- m_cur_span->covers = m_cover_ptr;
- m_cur_span->x = (int16)x;
- m_cur_span->len = 1;
- }
- m_last_x = x;
- m_cover_ptr++;
- }
-
-
- //------------------------------------------------------------------------
- template<class T>
- void scanline_p<T>::add_cells(int x, unsigned len, const T* covers)
- {
- memcpy(m_cover_ptr, covers, len * sizeof(T));
- if(x == m_last_x+1 && m_cur_span->len > 0)
- {
- m_cur_span->len += (int16)len;
- }
- else
- {
- m_cur_span++;
- m_cur_span->covers = m_cover_ptr;
- m_cur_span->x = (int16)x;
- m_cur_span->len = (int16)len;
- }
- m_cover_ptr += len;
- m_last_x = x + len - 1;
- }
-
-
- //------------------------------------------------------------------------
- template<class T>
- void scanline_p<T>::add_span(int x, unsigned len, unsigned cover)
- {
- if(x == m_last_x+1 &&
- m_cur_span->len < 0 &&
- cover == *m_cur_span->covers)
- {
- m_cur_span->len -= (int16)len;
- }
- else
- {
- *m_cover_ptr = (T)cover;
- m_cur_span++;
- m_cur_span->covers = m_cover_ptr++;
- m_cur_span->x = (int16)x;
- m_cur_span->len = -((int16)len);
- }
- m_last_x = x + len - 1;
- }
-
-
- //=============================================================scanline_p8
- typedef scanline_p<int8u> scanline_p8;
-
- //============================================================scanline_p16
- typedef scanline_p<int16u> scanline_p16;
-
- //============================================================scanline_p32
- typedef scanline_p<int32u> scanline_p32;
-}
-
-
-#endif
-