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diff --git a/contrib/python/matplotlib/py3/extern/agg24-svn/include/agg_renderer_primitives.h b/contrib/python/matplotlib/py3/extern/agg24-svn/include/agg_renderer_primitives.h
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+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.4
+// 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 renderer_primitives
+//
+//----------------------------------------------------------------------------
+
+#ifndef AGG_RENDERER_PRIMITIVES_INCLUDED
+#define AGG_RENDERER_PRIMITIVES_INCLUDED
+
+#include "agg_basics.h"
+#include "agg_renderer_base.h"
+#include "agg_dda_line.h"
+#include "agg_ellipse_bresenham.h"
+
+namespace agg
+{
+    //-----------------------------------------------------renderer_primitives
+    template<class BaseRenderer> class renderer_primitives
+    {
+    public:
+        typedef BaseRenderer base_ren_type;
+        typedef typename base_ren_type::color_type color_type;
+
+        //--------------------------------------------------------------------
+        explicit renderer_primitives(base_ren_type& ren) :
+            m_ren(&ren),
+            m_fill_color(),
+            m_line_color(),
+            m_curr_x(0),
+            m_curr_y(0)
+        {}
+        void attach(base_ren_type& ren) { m_ren = &ren; }
+
+        //--------------------------------------------------------------------
+        static int coord(double c) 
+        { 
+            return iround(c * line_bresenham_interpolator::subpixel_scale); 
+        }
+
+        //--------------------------------------------------------------------
+        void fill_color(const color_type& c) { m_fill_color = c; }
+        void line_color(const color_type& c) { m_line_color = c; }
+        const color_type& fill_color() const { return m_fill_color; }
+        const color_type& line_color() const { return m_line_color; }
+
+        //--------------------------------------------------------------------
+        void rectangle(int x1, int y1, int x2, int y2)
+        {
+            m_ren->blend_hline(x1,   y1,   x2-1, m_line_color, cover_full);
+            m_ren->blend_vline(x2,   y1,   y2-1, m_line_color, cover_full);
+            m_ren->blend_hline(x1+1, y2,   x2,   m_line_color, cover_full);
+            m_ren->blend_vline(x1,   y1+1, y2,   m_line_color, cover_full);
+        }
+
+        //--------------------------------------------------------------------
+        void solid_rectangle(int x1, int y1, int x2, int y2)
+        {
+            m_ren->blend_bar(x1, y1, x2, y2, m_fill_color, cover_full);
+        }
+
+        //--------------------------------------------------------------------
+        void outlined_rectangle(int x1, int y1, int x2, int y2) 
+        {
+            rectangle(x1, y1, x2, y2);
+            m_ren->blend_bar(x1+1, y1+1, x2-1, y2-1, m_fill_color, cover_full);
+        }
+
+        //--------------------------------------------------------------------
+        void ellipse(int x, int y, int rx, int ry)
+        {
+            ellipse_bresenham_interpolator ei(rx, ry);
+            int dx = 0;
+            int dy = -ry;
+            do
+            {
+                dx += ei.dx();
+                dy += ei.dy();
+                m_ren->blend_pixel(x + dx, y + dy, m_line_color, cover_full);
+                m_ren->blend_pixel(x + dx, y - dy, m_line_color, cover_full);
+                m_ren->blend_pixel(x - dx, y - dy, m_line_color, cover_full);
+                m_ren->blend_pixel(x - dx, y + dy, m_line_color, cover_full);
+                ++ei;
+            }
+            while(dy < 0);
+        }
+
+        //--------------------------------------------------------------------
+        void solid_ellipse(int x, int y, int rx, int ry)
+        {
+            ellipse_bresenham_interpolator ei(rx, ry);
+            int dx = 0;
+            int dy = -ry;
+            int dy0 = dy;
+            int dx0 = dx;
+
+            do
+            {
+                dx += ei.dx();
+                dy += ei.dy();
+
+                if(dy != dy0)
+                {
+                    m_ren->blend_hline(x-dx0, y+dy0, x+dx0, m_fill_color, cover_full);
+                    m_ren->blend_hline(x-dx0, y-dy0, x+dx0, m_fill_color, cover_full);
+                }
+                dx0 = dx;
+                dy0 = dy;
+                ++ei;
+            }
+            while(dy < 0);
+            m_ren->blend_hline(x-dx0, y+dy0, x+dx0, m_fill_color, cover_full);
+        }
+
+        //--------------------------------------------------------------------
+        void outlined_ellipse(int x, int y, int rx, int ry)
+        {
+            ellipse_bresenham_interpolator ei(rx, ry);
+            int dx = 0;
+            int dy = -ry;
+
+            do
+            {
+                dx += ei.dx();
+                dy += ei.dy();
+
+                m_ren->blend_pixel(x + dx, y + dy, m_line_color, cover_full);
+                m_ren->blend_pixel(x + dx, y - dy, m_line_color, cover_full);
+                m_ren->blend_pixel(x - dx, y - dy, m_line_color, cover_full);
+                m_ren->blend_pixel(x - dx, y + dy, m_line_color, cover_full);
+
+                if(ei.dy() && dx)
+                {
+                   m_ren->blend_hline(x-dx+1, y+dy, x+dx-1, m_fill_color, cover_full);
+                   m_ren->blend_hline(x-dx+1, y-dy, x+dx-1, m_fill_color, cover_full);
+                }
+                ++ei;
+            }
+            while(dy < 0);
+        }
+
+        //--------------------------------------------------------------------
+        void line(int x1, int y1, int x2, int y2, bool last=false)
+        {
+            line_bresenham_interpolator li(x1, y1, x2, y2);
+
+            unsigned len = li.len();
+            if(len == 0)
+            {
+                if(last)
+                {
+                    m_ren->blend_pixel(li.line_lr(x1), li.line_lr(y1), m_line_color, cover_full);
+                }
+                return;
+            }
+
+            if(last) ++len;
+
+            if(li.is_ver())
+            {
+                do
+                {
+                    m_ren->blend_pixel(li.x2(), li.y1(), m_line_color, cover_full);
+                    li.vstep();
+                }
+                while(--len);
+            }
+            else
+            {
+                do
+                {
+                    m_ren->blend_pixel(li.x1(), li.y2(), m_line_color, cover_full);
+                    li.hstep();
+                }
+                while(--len);
+            }
+        }
+
+        //--------------------------------------------------------------------
+        void move_to(int x, int y)
+        {
+            m_curr_x = x;
+            m_curr_y = y;
+        }
+
+        //--------------------------------------------------------------------
+        void line_to(int x, int y, bool last=false)
+        {
+            line(m_curr_x, m_curr_y, x, y, last);
+            m_curr_x = x;
+            m_curr_y = y;
+        }
+
+        //--------------------------------------------------------------------
+        const base_ren_type& ren() const { return *m_ren; }        
+        base_ren_type& ren() { return *m_ren; }        
+
+        //--------------------------------------------------------------------
+        const rendering_buffer& rbuf() const { return m_ren->rbuf(); }
+        rendering_buffer& rbuf() { return m_ren->rbuf(); }
+
+    private:
+        base_ren_type* m_ren;
+        color_type m_fill_color;
+        color_type m_line_color;
+        int m_curr_x;
+        int m_curr_y;
+    };
+
+}
+
+#endif