547fd34504
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10896 a95241bf-73f2-0310-859d-f6bbb57e9c96
1546 lines
51 KiB
C++
1546 lines
51 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_RENDERER_OUTLINE_AA_INCLUDED
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#define AGG_RENDERER_OUTLINE_AA_INCLUDED
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#include "agg_basics.h"
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#include "agg_math.h"
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#include "agg_line_aa_basics.h"
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#include "agg_dda_line.h"
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#include "agg_ellipse_bresenham.h"
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#include "agg_renderer_base.h"
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#include "agg_gamma_functions.h"
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namespace agg
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{
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//===================================================distance_interpolator0
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class distance_interpolator0
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{
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public:
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//---------------------------------------------------------------------
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distance_interpolator0() {}
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distance_interpolator0(int x1, int y1, int x2, int y2, int x, int y) :
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m_dx(line_mr(x2) - line_mr(x1)),
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m_dy(line_mr(y2) - line_mr(y1)),
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m_dist((line_mr(x + line_subpixel_size/2) - line_mr(x2)) * m_dy -
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(line_mr(y + line_subpixel_size/2) - line_mr(y2)) * m_dx)
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{
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m_dx <<= line_mr_subpixel_shift;
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m_dy <<= line_mr_subpixel_shift;
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}
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//---------------------------------------------------------------------
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void inc_x() { m_dist += m_dy; }
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void dec_x() { m_dist -= m_dy; }
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void inc_y() { m_dist -= m_dx; }
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void dec_y() { m_dist += m_dx; }
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//---------------------------------------------------------------------
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void inc_x(int dy)
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{
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m_dist += m_dy;
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if(dy > 0) m_dist -= m_dx;
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if(dy < 0) m_dist += m_dx;
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}
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//---------------------------------------------------------------------
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void dec_x(int dy)
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{
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m_dist -= m_dy;
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if(dy > 0) m_dist -= m_dx;
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if(dy < 0) m_dist += m_dx;
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}
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//---------------------------------------------------------------------
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void inc_y(int dx)
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{
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m_dist -= m_dx;
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if(dx > 0) m_dist += m_dy;
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if(dx < 0) m_dist -= m_dy;
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}
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void dec_y(int dx)
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//---------------------------------------------------------------------
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{
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m_dist += m_dx;
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if(dx > 0) m_dist += m_dy;
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if(dx < 0) m_dist -= m_dy;
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}
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//---------------------------------------------------------------------
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int dist() const { return m_dist; }
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int dx() const { return m_dx; }
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int dy() const { return m_dy; }
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private:
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//---------------------------------------------------------------------
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int m_dx;
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int m_dy;
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int m_dist;
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};
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//===================================================distance_interpolator1
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class distance_interpolator1
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{
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public:
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//---------------------------------------------------------------------
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distance_interpolator1() {}
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distance_interpolator1(int x1, int y1, int x2, int y2, int x, int y) :
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m_dx(x2 - x1),
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m_dy(y2 - y1),
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m_dist(int(double(x + line_subpixel_size/2 - x2) * double(m_dy) -
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double(y + line_subpixel_size/2 - y2) * double(m_dx)))
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{
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m_dx <<= line_subpixel_shift;
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m_dy <<= line_subpixel_shift;
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}
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//---------------------------------------------------------------------
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void inc_x() { m_dist += m_dy; }
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void dec_x() { m_dist -= m_dy; }
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void inc_y() { m_dist -= m_dx; }
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void dec_y() { m_dist += m_dx; }
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//---------------------------------------------------------------------
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void inc_x(int dy)
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{
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m_dist += m_dy;
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if(dy > 0) m_dist -= m_dx;
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if(dy < 0) m_dist += m_dx;
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}
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//---------------------------------------------------------------------
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void dec_x(int dy)
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{
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m_dist -= m_dy;
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if(dy > 0) m_dist -= m_dx;
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if(dy < 0) m_dist += m_dx;
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}
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//---------------------------------------------------------------------
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void inc_y(int dx)
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{
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m_dist -= m_dx;
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if(dx > 0) m_dist += m_dy;
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if(dx < 0) m_dist -= m_dy;
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}
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void dec_y(int dx)
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//---------------------------------------------------------------------
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{
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m_dist += m_dx;
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if(dx > 0) m_dist += m_dy;
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if(dx < 0) m_dist -= m_dy;
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}
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//---------------------------------------------------------------------
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int dist() const { return m_dist; }
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int dx() const { return m_dx; }
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int dy() const { return m_dy; }
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private:
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//---------------------------------------------------------------------
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int m_dx;
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int m_dy;
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int m_dist;
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};
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//===================================================distance_interpolator2
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class distance_interpolator2
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{
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public:
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//---------------------------------------------------------------------
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distance_interpolator2() {}
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distance_interpolator2(int x1, int y1, int x2, int y2,
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int sx, int sy, int x, int y) :
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m_dx(x2 - x1),
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m_dy(y2 - y1),
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m_dx_start(line_mr(sx) - line_mr(x1)),
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m_dy_start(line_mr(sy) - line_mr(y1)),
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m_dist(int(double(x + line_subpixel_size/2 - x2) * double(m_dy) -
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double(y + line_subpixel_size/2 - y2) * double(m_dx))),
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m_dist_start((line_mr(x + line_subpixel_size/2) - line_mr(sx)) * m_dy_start -
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(line_mr(y + line_subpixel_size/2) - line_mr(sy)) * m_dx_start)
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{
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m_dx <<= line_subpixel_shift;
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m_dy <<= line_subpixel_shift;
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m_dx_start <<= line_mr_subpixel_shift;
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m_dy_start <<= line_mr_subpixel_shift;
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}
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distance_interpolator2(int x1, int y1, int x2, int y2,
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int ex, int ey, int x, int y, int) :
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m_dx(x2 - x1),
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m_dy(y2 - y1),
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m_dx_start(line_mr(ex) - line_mr(x2)),
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m_dy_start(line_mr(ey) - line_mr(y2)),
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m_dist(int(double(x + line_subpixel_size/2 - x2) * double(m_dy) -
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double(y + line_subpixel_size/2 - y2) * double(m_dx))),
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m_dist_start((line_mr(x + line_subpixel_size/2) - line_mr(ex)) * m_dy_start -
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(line_mr(y + line_subpixel_size/2) - line_mr(ey)) * m_dx_start)
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{
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m_dx <<= line_subpixel_shift;
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m_dy <<= line_subpixel_shift;
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m_dx_start <<= line_mr_subpixel_shift;
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m_dy_start <<= line_mr_subpixel_shift;
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}
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//---------------------------------------------------------------------
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void inc_x() { m_dist += m_dy; m_dist_start += m_dy_start; }
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void dec_x() { m_dist -= m_dy; m_dist_start -= m_dy_start; }
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void inc_y() { m_dist -= m_dx; m_dist_start -= m_dx_start; }
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void dec_y() { m_dist += m_dx; m_dist_start += m_dx_start; }
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//---------------------------------------------------------------------
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void inc_x(int dy)
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{
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m_dist += m_dy;
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m_dist_start += m_dy_start;
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if(dy > 0)
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{
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m_dist -= m_dx;
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m_dist_start -= m_dx_start;
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}
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if(dy < 0)
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{
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m_dist += m_dx;
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m_dist_start += m_dx_start;
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}
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}
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//---------------------------------------------------------------------
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void dec_x(int dy)
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{
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m_dist -= m_dy;
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m_dist_start -= m_dy_start;
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if(dy > 0)
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{
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m_dist -= m_dx;
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m_dist_start -= m_dx_start;
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}
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if(dy < 0)
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{
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m_dist += m_dx;
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m_dist_start += m_dx_start;
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}
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}
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//---------------------------------------------------------------------
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void inc_y(int dx)
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{
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m_dist -= m_dx;
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m_dist_start -= m_dx_start;
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if(dx > 0)
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{
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m_dist += m_dy;
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m_dist_start += m_dy_start;
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}
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if(dx < 0)
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{
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m_dist -= m_dy;
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m_dist_start -= m_dy_start;
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}
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}
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//---------------------------------------------------------------------
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void dec_y(int dx)
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{
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m_dist += m_dx;
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m_dist_start += m_dx_start;
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if(dx > 0)
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{
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m_dist += m_dy;
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m_dist_start += m_dy_start;
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}
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if(dx < 0)
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{
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m_dist -= m_dy;
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m_dist_start -= m_dy_start;
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}
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}
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//---------------------------------------------------------------------
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int dist() const { return m_dist; }
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int dist_start() const { return m_dist_start; }
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int dist_end() const { return m_dist_start; }
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//---------------------------------------------------------------------
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int dx() const { return m_dx; }
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int dy() const { return m_dy; }
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int dx_start() const { return m_dx_start; }
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int dy_start() const { return m_dy_start; }
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int dx_end() const { return m_dx_start; }
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int dy_end() const { return m_dy_start; }
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private:
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//---------------------------------------------------------------------
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int m_dx;
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int m_dy;
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int m_dx_start;
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int m_dy_start;
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int m_dist;
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int m_dist_start;
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};
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//===================================================distance_interpolator3
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class distance_interpolator3
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{
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public:
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//---------------------------------------------------------------------
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distance_interpolator3() {}
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distance_interpolator3(int x1, int y1, int x2, int y2,
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int sx, int sy, int ex, int ey,
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int x, int y) :
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m_dx(x2 - x1),
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m_dy(y2 - y1),
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m_dx_start(line_mr(sx) - line_mr(x1)),
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m_dy_start(line_mr(sy) - line_mr(y1)),
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m_dx_end(line_mr(ex) - line_mr(x2)),
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m_dy_end(line_mr(ey) - line_mr(y2)),
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m_dist(int(double(x + line_subpixel_size/2 - x2) * double(m_dy) -
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double(y + line_subpixel_size/2 - y2) * double(m_dx))),
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m_dist_start((line_mr(x + line_subpixel_size/2) - line_mr(sx)) * m_dy_start -
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(line_mr(y + line_subpixel_size/2) - line_mr(sy)) * m_dx_start),
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m_dist_end((line_mr(x + line_subpixel_size/2) - line_mr(ex)) * m_dy_end -
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(line_mr(y + line_subpixel_size/2) - line_mr(ey)) * m_dx_end)
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{
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m_dx <<= line_subpixel_shift;
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m_dy <<= line_subpixel_shift;
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m_dx_start <<= line_mr_subpixel_shift;
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m_dy_start <<= line_mr_subpixel_shift;
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m_dx_end <<= line_mr_subpixel_shift;
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m_dy_end <<= line_mr_subpixel_shift;
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}
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//---------------------------------------------------------------------
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void inc_x() { m_dist += m_dy; m_dist_start += m_dy_start; m_dist_end += m_dy_end; }
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void dec_x() { m_dist -= m_dy; m_dist_start -= m_dy_start; m_dist_end -= m_dy_end; }
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void inc_y() { m_dist -= m_dx; m_dist_start -= m_dx_start; m_dist_end -= m_dx_end; }
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void dec_y() { m_dist += m_dx; m_dist_start += m_dx_start; m_dist_end += m_dx_end; }
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//---------------------------------------------------------------------
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void inc_x(int dy)
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{
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m_dist += m_dy;
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m_dist_start += m_dy_start;
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m_dist_end += m_dy_end;
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if(dy > 0)
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{
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m_dist -= m_dx;
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m_dist_start -= m_dx_start;
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m_dist_end -= m_dx_end;
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}
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if(dy < 0)
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{
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m_dist += m_dx;
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m_dist_start += m_dx_start;
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m_dist_end += m_dx_end;
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}
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}
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//---------------------------------------------------------------------
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void dec_x(int dy)
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{
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m_dist -= m_dy;
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m_dist_start -= m_dy_start;
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m_dist_end -= m_dy_end;
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if(dy > 0)
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{
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m_dist -= m_dx;
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m_dist_start -= m_dx_start;
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m_dist_end -= m_dx_end;
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}
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if(dy < 0)
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{
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m_dist += m_dx;
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m_dist_start += m_dx_start;
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m_dist_end += m_dx_end;
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}
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}
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//---------------------------------------------------------------------
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void inc_y(int dx)
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{
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m_dist -= m_dx;
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m_dist_start -= m_dx_start;
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m_dist_end -= m_dx_end;
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if(dx > 0)
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{
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m_dist += m_dy;
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m_dist_start += m_dy_start;
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m_dist_end += m_dy_end;
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}
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if(dx < 0)
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{
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m_dist -= m_dy;
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m_dist_start -= m_dy_start;
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m_dist_end -= m_dy_end;
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}
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}
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//---------------------------------------------------------------------
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void dec_y(int dx)
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{
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m_dist += m_dx;
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m_dist_start += m_dx_start;
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m_dist_end += m_dx_end;
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if(dx > 0)
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{
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m_dist += m_dy;
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m_dist_start += m_dy_start;
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m_dist_end += m_dy_end;
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}
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if(dx < 0)
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{
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m_dist -= m_dy;
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m_dist_start -= m_dy_start;
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m_dist_end -= m_dy_end;
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}
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}
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//---------------------------------------------------------------------
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int dist() const { return m_dist; }
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int dist_start() const { return m_dist_start; }
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int dist_end() const { return m_dist_end; }
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//---------------------------------------------------------------------
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int dx() const { return m_dx; }
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int dy() const { return m_dy; }
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int dx_start() const { return m_dx_start; }
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int dy_start() const { return m_dy_start; }
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int dx_end() const { return m_dx_end; }
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int dy_end() const { return m_dy_end; }
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private:
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//---------------------------------------------------------------------
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int m_dx;
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int m_dy;
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int m_dx_start;
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int m_dy_start;
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int m_dx_end;
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int m_dy_end;
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int m_dist;
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int m_dist_start;
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int m_dist_end;
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};
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//================================================line_interpolator_aa_base
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template<class Renderer> class line_interpolator_aa_base
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{
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public:
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typedef Renderer renderer_type;
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typedef typename Renderer::color_type color_type;
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//---------------------------------------------------------------------
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enum
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{
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max_half_width = 64
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};
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//---------------------------------------------------------------------
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line_interpolator_aa_base(renderer_type& ren, const line_parameters& lp) :
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m_lp(&lp),
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m_li(lp.vertical ? line_dbl_hr(lp.x2 - lp.x1) :
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line_dbl_hr(lp.y2 - lp.y1),
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lp.vertical ? abs(lp.y2 - lp.y1) :
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abs(lp.x2 - lp.x1) + 1),
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m_ren(ren),
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m_len((lp.vertical == (lp.inc > 0)) ? -lp.len : lp.len),
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m_x(lp.x1 >> line_subpixel_shift),
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m_y(lp.y1 >> line_subpixel_shift),
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m_old_x(m_x),
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m_old_y(m_y),
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m_count((lp.vertical ? abs((lp.y2 >> line_subpixel_shift) - m_y) :
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abs((lp.x2 >> line_subpixel_shift) - m_x))),
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m_width(ren.subpixel_width()),
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m_max_extent(m_width >> (line_subpixel_shift - 2)),
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m_step(0)
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{
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agg::dda2_line_interpolator li(0, lp.vertical ?
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(lp.dy << agg::line_subpixel_shift) :
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(lp.dx << agg::line_subpixel_shift),
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lp.len);
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unsigned i;
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int stop = m_width + line_subpixel_size * 2;
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for(i = 0; i < max_half_width; ++i)
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{
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m_dist[i] = li.y();
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if(m_dist[i] >= stop) break;
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++li;
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}
|
|
m_dist[i++] = 0x7FFF0000;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
template<class DI> int step_hor_base(DI& di)
|
|
{
|
|
++m_li;
|
|
m_x += m_lp->inc;
|
|
m_y = (m_lp->y1 + m_li.y()) >> line_subpixel_shift;
|
|
|
|
if(m_lp->inc > 0) di.inc_x(m_y - m_old_y);
|
|
else di.dec_x(m_y - m_old_y);
|
|
|
|
m_old_y = m_y;
|
|
|
|
return di.dist() / m_len;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
template<class DI> int step_ver_base(DI& di)
|
|
{
|
|
++m_li;
|
|
m_y += m_lp->inc;
|
|
m_x = (m_lp->x1 + m_li.y()) >> line_subpixel_shift;
|
|
|
|
if(m_lp->inc > 0) di.inc_y(m_x - m_old_x);
|
|
else di.dec_y(m_x - m_old_x);
|
|
|
|
m_old_x = m_x;
|
|
|
|
return di.dist() / m_len;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
bool vertical() const { return m_lp->vertical; }
|
|
int width() const { return m_width; }
|
|
int count() const { return m_count; }
|
|
|
|
private:
|
|
line_interpolator_aa_base(const line_interpolator_aa_base<Renderer>&);
|
|
const line_interpolator_aa_base<Renderer>&
|
|
operator = (const line_interpolator_aa_base<Renderer>&);
|
|
|
|
protected:
|
|
const line_parameters* m_lp;
|
|
dda2_line_interpolator m_li;
|
|
renderer_type& m_ren;
|
|
int m_len;
|
|
int m_x;
|
|
int m_y;
|
|
int m_old_x;
|
|
int m_old_y;
|
|
int m_count;
|
|
int m_width;
|
|
int m_max_extent;
|
|
int m_step;
|
|
int m_dist[max_half_width + 1];
|
|
cover_type m_covers[max_half_width * 2 + 4];
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//====================================================line_interpolator_aa0
|
|
template<class Renderer> class line_interpolator_aa0 :
|
|
public line_interpolator_aa_base<Renderer>
|
|
{
|
|
public:
|
|
typedef Renderer renderer_type;
|
|
typedef typename Renderer::color_type color_type;
|
|
typedef line_interpolator_aa_base<Renderer> base_type;
|
|
|
|
//---------------------------------------------------------------------
|
|
line_interpolator_aa0(renderer_type& ren, const line_parameters& lp) :
|
|
line_interpolator_aa_base<Renderer>(ren, lp),
|
|
m_di(lp.x1, lp.y1, lp.x2, lp.y2,
|
|
lp.x1 & ~line_subpixel_mask, lp.y1 & ~line_subpixel_mask)
|
|
{
|
|
base_type::m_li.adjust_forward();
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
bool step_hor()
|
|
{
|
|
int dist;
|
|
int dy;
|
|
int s1 = base_type::step_hor_base(m_di);
|
|
cover_type* p0 = base_type::m_covers + base_type::max_half_width + 2;
|
|
cover_type* p1 = p0;
|
|
|
|
*p1++ = (cover_type)base_type::m_ren.cover(s1);
|
|
|
|
dy = 1;
|
|
while((dist = base_type::m_dist[dy] - s1) <= base_type::m_width)
|
|
{
|
|
*p1++ = (cover_type)base_type::m_ren.cover(dist);
|
|
++dy;
|
|
}
|
|
|
|
dy = 1;
|
|
while((dist = base_type::m_dist[dy] + s1) <= base_type::m_width)
|
|
{
|
|
*--p0 = (cover_type)base_type::m_ren.cover(dist);
|
|
++dy;
|
|
}
|
|
base_type::m_ren.blend_solid_vspan(base_type::m_x,
|
|
base_type::m_y - dy + 1,
|
|
unsigned(p1 - p0),
|
|
p0);
|
|
return ++base_type::m_step < base_type::m_count;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
bool step_ver()
|
|
{
|
|
int dist;
|
|
int dx;
|
|
int s1 = base_type::step_ver_base(m_di);
|
|
cover_type* p0 = base_type::m_covers + base_type::max_half_width + 2;
|
|
cover_type* p1 = p0;
|
|
|
|
*p1++ = (cover_type)base_type::m_ren.cover(s1);
|
|
|
|
dx = 1;
|
|
while((dist = base_type::m_dist[dx] - s1) <= base_type::m_width)
|
|
{
|
|
*p1++ = (cover_type)base_type::m_ren.cover(dist);
|
|
++dx;
|
|
}
|
|
|
|
dx = 1;
|
|
while((dist = base_type::m_dist[dx] + s1) <= base_type::m_width)
|
|
{
|
|
*--p0 = (cover_type)base_type::m_ren.cover(dist);
|
|
++dx;
|
|
}
|
|
base_type::m_ren.blend_solid_hspan(base_type::m_x - dx + 1,
|
|
base_type::m_y,
|
|
unsigned(p1 - p0),
|
|
p0);
|
|
return ++base_type::m_step < base_type::m_count;
|
|
}
|
|
|
|
private:
|
|
line_interpolator_aa0(const line_interpolator_aa0<Renderer>&);
|
|
const line_interpolator_aa0<Renderer>&
|
|
operator = (const line_interpolator_aa0<Renderer>&);
|
|
|
|
//---------------------------------------------------------------------
|
|
distance_interpolator1 m_di;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//====================================================line_interpolator_aa1
|
|
template<class Renderer> class line_interpolator_aa1 :
|
|
public line_interpolator_aa_base<Renderer>
|
|
{
|
|
public:
|
|
typedef Renderer renderer_type;
|
|
typedef typename Renderer::color_type color_type;
|
|
typedef line_interpolator_aa_base<Renderer> base_type;
|
|
|
|
//---------------------------------------------------------------------
|
|
line_interpolator_aa1(renderer_type& ren, const line_parameters& lp,
|
|
int sx, int sy) :
|
|
line_interpolator_aa_base<Renderer>(ren, lp),
|
|
m_di(lp.x1, lp.y1, lp.x2, lp.y2, sx, sy,
|
|
lp.x1 & ~line_subpixel_mask, lp.y1 & ~line_subpixel_mask)
|
|
{
|
|
int dist1_start;
|
|
int dist2_start;
|
|
|
|
int npix = 1;
|
|
|
|
if(lp.vertical)
|
|
{
|
|
do
|
|
{
|
|
--base_type::m_li;
|
|
base_type::m_y -= lp.inc;
|
|
base_type::m_x = (base_type::m_lp->x1 + base_type::m_li.y()) >> line_subpixel_shift;
|
|
|
|
if(lp.inc > 0) m_di.dec_y(base_type::m_x - base_type::m_old_x);
|
|
else m_di.inc_y(base_type::m_x - base_type::m_old_x);
|
|
|
|
base_type::m_old_x = base_type::m_x;
|
|
|
|
dist1_start = dist2_start = m_di.dist_start();
|
|
|
|
int dx = 0;
|
|
if(dist1_start < 0) ++npix;
|
|
do
|
|
{
|
|
dist1_start += m_di.dy_start();
|
|
dist2_start -= m_di.dy_start();
|
|
if(dist1_start < 0) ++npix;
|
|
if(dist2_start < 0) ++npix;
|
|
++dx;
|
|
}
|
|
while(base_type::m_dist[dx] <= base_type::m_width);
|
|
--base_type::m_step;
|
|
if(npix == 0) break;
|
|
npix = 0;
|
|
}
|
|
while(base_type::m_step >= -base_type::m_max_extent);
|
|
}
|
|
else
|
|
{
|
|
do
|
|
{
|
|
--base_type::m_li;
|
|
base_type::m_x -= lp.inc;
|
|
base_type::m_y = (base_type::m_lp->y1 + base_type::m_li.y()) >> line_subpixel_shift;
|
|
|
|
if(lp.inc > 0) m_di.dec_x(base_type::m_y - base_type::m_old_y);
|
|
else m_di.inc_x(base_type::m_y - base_type::m_old_y);
|
|
|
|
base_type::m_old_y = base_type::m_y;
|
|
|
|
dist1_start = dist2_start = m_di.dist_start();
|
|
|
|
int dy = 0;
|
|
if(dist1_start < 0) ++npix;
|
|
do
|
|
{
|
|
dist1_start -= m_di.dx_start();
|
|
dist2_start += m_di.dx_start();
|
|
if(dist1_start < 0) ++npix;
|
|
if(dist2_start < 0) ++npix;
|
|
++dy;
|
|
}
|
|
while(base_type::m_dist[dy] <= base_type::m_width);
|
|
--base_type::m_step;
|
|
if(npix == 0) break;
|
|
npix = 0;
|
|
}
|
|
while(base_type::m_step >= -base_type::m_max_extent);
|
|
}
|
|
base_type::m_li.adjust_forward();
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
bool step_hor()
|
|
{
|
|
int dist_start;
|
|
int dist;
|
|
int dy;
|
|
int s1 = base_type::step_hor_base(m_di);
|
|
|
|
dist_start = m_di.dist_start();
|
|
cover_type* p0 = base_type::m_covers + base_type::max_half_width + 2;
|
|
cover_type* p1 = p0;
|
|
|
|
*p1 = 0;
|
|
if(dist_start <= 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(s1);
|
|
}
|
|
++p1;
|
|
|
|
dy = 1;
|
|
while((dist = base_type::m_dist[dy] - s1) <= base_type::m_width)
|
|
{
|
|
dist_start -= m_di.dx_start();
|
|
*p1 = 0;
|
|
if(dist_start <= 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(dist);
|
|
}
|
|
++p1;
|
|
++dy;
|
|
}
|
|
|
|
dy = 1;
|
|
dist_start = m_di.dist_start();
|
|
while((dist = base_type::m_dist[dy] + s1) <= base_type::m_width)
|
|
{
|
|
dist_start += m_di.dx_start();
|
|
*--p0 = 0;
|
|
if(dist_start <= 0)
|
|
{
|
|
*p0 = (cover_type)base_type::m_ren.cover(dist);
|
|
}
|
|
++dy;
|
|
}
|
|
|
|
base_type::m_ren.blend_solid_vspan(base_type::m_x,
|
|
base_type::m_y - dy + 1,
|
|
unsigned(p1 - p0),
|
|
p0);
|
|
return ++base_type::m_step < base_type::m_count;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
bool step_ver()
|
|
{
|
|
int dist_start;
|
|
int dist;
|
|
int dx;
|
|
int s1 = base_type::step_ver_base(m_di);
|
|
cover_type* p0 = base_type::m_covers + base_type::max_half_width + 2;
|
|
cover_type* p1 = p0;
|
|
|
|
dist_start = m_di.dist_start();
|
|
|
|
*p1 = 0;
|
|
if(dist_start <= 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(s1);
|
|
}
|
|
++p1;
|
|
|
|
dx = 1;
|
|
while((dist = base_type::m_dist[dx] - s1) <= base_type::m_width)
|
|
{
|
|
dist_start += m_di.dy_start();
|
|
*p1 = 0;
|
|
if(dist_start <= 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(dist);
|
|
}
|
|
++p1;
|
|
++dx;
|
|
}
|
|
|
|
dx = 1;
|
|
dist_start = m_di.dist_start();
|
|
while((dist = base_type::m_dist[dx] + s1) <= base_type::m_width)
|
|
{
|
|
dist_start -= m_di.dy_start();
|
|
*--p0 = 0;
|
|
if(dist_start <= 0)
|
|
{
|
|
*p0 = (cover_type)base_type::m_ren.cover(dist);
|
|
}
|
|
++dx;
|
|
}
|
|
base_type::m_ren.blend_solid_hspan(base_type::m_x - dx + 1,
|
|
base_type::m_y,
|
|
unsigned(p1 - p0),
|
|
p0);
|
|
return ++base_type::m_step < base_type::m_count;
|
|
}
|
|
|
|
private:
|
|
line_interpolator_aa1(const line_interpolator_aa1<Renderer>&);
|
|
const line_interpolator_aa1<Renderer>&
|
|
operator = (const line_interpolator_aa1<Renderer>&);
|
|
|
|
//---------------------------------------------------------------------
|
|
distance_interpolator2 m_di;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//====================================================line_interpolator_aa2
|
|
template<class Renderer> class line_interpolator_aa2 :
|
|
public line_interpolator_aa_base<Renderer>
|
|
{
|
|
public:
|
|
typedef Renderer renderer_type;
|
|
typedef typename Renderer::color_type color_type;
|
|
typedef line_interpolator_aa_base<Renderer> base_type;
|
|
|
|
//---------------------------------------------------------------------
|
|
line_interpolator_aa2(renderer_type& ren, const line_parameters& lp,
|
|
int ex, int ey) :
|
|
line_interpolator_aa_base<Renderer>(ren, lp),
|
|
m_di(lp.x1, lp.y1, lp.x2, lp.y2, ex, ey,
|
|
lp.x1 & ~line_subpixel_mask, lp.y1 & ~line_subpixel_mask,
|
|
0)
|
|
{
|
|
base_type::m_li.adjust_forward();
|
|
base_type::m_step -= base_type::m_max_extent;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
bool step_hor()
|
|
{
|
|
int dist_end;
|
|
int dist;
|
|
int dy;
|
|
int s1 = base_type::step_hor_base(m_di);
|
|
cover_type* p0 = base_type::m_covers + base_type::max_half_width + 2;
|
|
cover_type* p1 = p0;
|
|
|
|
dist_end = m_di.dist_end();
|
|
|
|
int npix = 0;
|
|
*p1 = 0;
|
|
if(dist_end > 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(s1);
|
|
++npix;
|
|
}
|
|
++p1;
|
|
|
|
dy = 1;
|
|
while((dist = base_type::m_dist[dy] - s1) <= base_type::m_width)
|
|
{
|
|
dist_end -= m_di.dx_end();
|
|
*p1 = 0;
|
|
if(dist_end > 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(dist);
|
|
++npix;
|
|
}
|
|
++p1;
|
|
++dy;
|
|
}
|
|
|
|
dy = 1;
|
|
dist_end = m_di.dist_end();
|
|
while((dist = base_type::m_dist[dy] + s1) <= base_type::m_width)
|
|
{
|
|
dist_end += m_di.dx_end();
|
|
*--p0 = 0;
|
|
if(dist_end > 0)
|
|
{
|
|
*p0 = (cover_type)base_type::m_ren.cover(dist);
|
|
++npix;
|
|
}
|
|
++dy;
|
|
}
|
|
base_type::m_ren.blend_solid_vspan(base_type::m_x,
|
|
base_type::m_y - dy + 1,
|
|
unsigned(p1 - p0),
|
|
p0);
|
|
return npix && ++base_type::m_step < base_type::m_count;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
bool step_ver()
|
|
{
|
|
int dist_end;
|
|
int dist;
|
|
int dx;
|
|
int s1 = base_type::step_ver_base(m_di);
|
|
cover_type* p0 = base_type::m_covers + base_type::max_half_width + 2;
|
|
cover_type* p1 = p0;
|
|
|
|
dist_end = m_di.dist_end();
|
|
|
|
int npix = 0;
|
|
*p1 = 0;
|
|
if(dist_end > 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(s1);
|
|
++npix;
|
|
}
|
|
++p1;
|
|
|
|
dx = 1;
|
|
while((dist = base_type::m_dist[dx] - s1) <= base_type::m_width)
|
|
{
|
|
dist_end += m_di.dy_end();
|
|
*p1 = 0;
|
|
if(dist_end > 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(dist);
|
|
++npix;
|
|
}
|
|
++p1;
|
|
++dx;
|
|
}
|
|
|
|
dx = 1;
|
|
dist_end = m_di.dist_end();
|
|
while((dist = base_type::m_dist[dx] + s1) <= base_type::m_width)
|
|
{
|
|
dist_end -= m_di.dy_end();
|
|
*--p0 = 0;
|
|
if(dist_end > 0)
|
|
{
|
|
*p0 = (cover_type)base_type::m_ren.cover(dist);
|
|
++npix;
|
|
}
|
|
++dx;
|
|
}
|
|
base_type::m_ren.blend_solid_hspan(base_type::m_x - dx + 1,
|
|
base_type::m_y,
|
|
unsigned(p1 - p0),
|
|
p0);
|
|
return npix && ++base_type::m_step < base_type::m_count;
|
|
}
|
|
|
|
private:
|
|
line_interpolator_aa2(const line_interpolator_aa2<Renderer>&);
|
|
const line_interpolator_aa2<Renderer>&
|
|
operator = (const line_interpolator_aa2<Renderer>&);
|
|
|
|
//---------------------------------------------------------------------
|
|
distance_interpolator2 m_di;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//====================================================line_interpolator_aa3
|
|
template<class Renderer> class line_interpolator_aa3 :
|
|
public line_interpolator_aa_base<Renderer>
|
|
{
|
|
public:
|
|
typedef Renderer renderer_type;
|
|
typedef typename Renderer::color_type color_type;
|
|
typedef line_interpolator_aa_base<Renderer> base_type;
|
|
|
|
//---------------------------------------------------------------------
|
|
line_interpolator_aa3(renderer_type& ren, const line_parameters& lp,
|
|
int sx, int sy, int ex, int ey) :
|
|
line_interpolator_aa_base<Renderer>(ren, lp),
|
|
m_di(lp.x1, lp.y1, lp.x2, lp.y2, sx, sy, ex, ey,
|
|
lp.x1 & ~line_subpixel_mask, lp.y1 & ~line_subpixel_mask)
|
|
{
|
|
int dist1_start;
|
|
int dist2_start;
|
|
int npix = 1;
|
|
if(lp.vertical)
|
|
{
|
|
do
|
|
{
|
|
--base_type::m_li;
|
|
base_type::m_y -= lp.inc;
|
|
base_type::m_x = (base_type::m_lp->x1 + base_type::m_li.y()) >> line_subpixel_shift;
|
|
|
|
if(lp.inc > 0) m_di.dec_y(base_type::m_x - base_type::m_old_x);
|
|
else m_di.inc_y(base_type::m_x - base_type::m_old_x);
|
|
|
|
base_type::m_old_x = base_type::m_x;
|
|
|
|
dist1_start = dist2_start = m_di.dist_start();
|
|
|
|
int dx = 0;
|
|
if(dist1_start < 0) ++npix;
|
|
do
|
|
{
|
|
dist1_start += m_di.dy_start();
|
|
dist2_start -= m_di.dy_start();
|
|
if(dist1_start < 0) ++npix;
|
|
if(dist2_start < 0) ++npix;
|
|
++dx;
|
|
}
|
|
while(base_type::m_dist[dx] <= base_type::m_width);
|
|
if(npix == 0) break;
|
|
npix = 0;
|
|
}
|
|
while(--base_type::m_step >= -base_type::m_max_extent);
|
|
}
|
|
else
|
|
{
|
|
do
|
|
{
|
|
--base_type::m_li;
|
|
base_type::m_x -= lp.inc;
|
|
base_type::m_y = (base_type::m_lp->y1 + base_type::m_li.y()) >> line_subpixel_shift;
|
|
|
|
if(lp.inc > 0) m_di.dec_x(base_type::m_y - base_type::m_old_y);
|
|
else m_di.inc_x(base_type::m_y - base_type::m_old_y);
|
|
|
|
base_type::m_old_y = base_type::m_y;
|
|
|
|
dist1_start = dist2_start = m_di.dist_start();
|
|
|
|
int dy = 0;
|
|
if(dist1_start < 0) ++npix;
|
|
do
|
|
{
|
|
dist1_start -= m_di.dx_start();
|
|
dist2_start += m_di.dx_start();
|
|
if(dist1_start < 0) ++npix;
|
|
if(dist2_start < 0) ++npix;
|
|
++dy;
|
|
}
|
|
while(base_type::m_dist[dy] <= base_type::m_width);
|
|
if(npix == 0) break;
|
|
npix = 0;
|
|
}
|
|
while(--base_type::m_step >= -base_type::m_max_extent);
|
|
}
|
|
base_type::m_li.adjust_forward();
|
|
base_type::m_step -= base_type::m_max_extent;
|
|
}
|
|
|
|
|
|
//---------------------------------------------------------------------
|
|
bool step_hor()
|
|
{
|
|
int dist_start;
|
|
int dist_end;
|
|
int dist;
|
|
int dy;
|
|
int s1 = base_type::step_hor_base(m_di);
|
|
cover_type* p0 = base_type::m_covers + base_type::max_half_width + 2;
|
|
cover_type* p1 = p0;
|
|
|
|
dist_start = m_di.dist_start();
|
|
dist_end = m_di.dist_end();
|
|
|
|
int npix = 0;
|
|
*p1 = 0;
|
|
if(dist_end > 0)
|
|
{
|
|
if(dist_start <= 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(s1);
|
|
}
|
|
++npix;
|
|
}
|
|
++p1;
|
|
|
|
dy = 1;
|
|
while((dist = base_type::m_dist[dy] - s1) <= base_type::m_width)
|
|
{
|
|
dist_start -= m_di.dx_start();
|
|
dist_end -= m_di.dx_end();
|
|
*p1 = 0;
|
|
if(dist_end > 0 && dist_start <= 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(dist);
|
|
++npix;
|
|
}
|
|
++p1;
|
|
++dy;
|
|
}
|
|
|
|
dy = 1;
|
|
dist_start = m_di.dist_start();
|
|
dist_end = m_di.dist_end();
|
|
while((dist = base_type::m_dist[dy] + s1) <= base_type::m_width)
|
|
{
|
|
dist_start += m_di.dx_start();
|
|
dist_end += m_di.dx_end();
|
|
*--p0 = 0;
|
|
if(dist_end > 0 && dist_start <= 0)
|
|
{
|
|
*p0 = (cover_type)base_type::m_ren.cover(dist);
|
|
++npix;
|
|
}
|
|
++dy;
|
|
}
|
|
base_type::m_ren.blend_solid_vspan(base_type::m_x,
|
|
base_type::m_y - dy + 1,
|
|
unsigned(p1 - p0),
|
|
p0);
|
|
return npix && ++base_type::m_step < base_type::m_count;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
bool step_ver()
|
|
{
|
|
int dist_start;
|
|
int dist_end;
|
|
int dist;
|
|
int dx;
|
|
int s1 = base_type::step_ver_base(m_di);
|
|
cover_type* p0 = base_type::m_covers + base_type::max_half_width + 2;
|
|
cover_type* p1 = p0;
|
|
|
|
dist_start = m_di.dist_start();
|
|
dist_end = m_di.dist_end();
|
|
|
|
int npix = 0;
|
|
*p1 = 0;
|
|
if(dist_end > 0)
|
|
{
|
|
if(dist_start <= 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(s1);
|
|
}
|
|
++npix;
|
|
}
|
|
++p1;
|
|
|
|
dx = 1;
|
|
while((dist = base_type::m_dist[dx] - s1) <= base_type::m_width)
|
|
{
|
|
dist_start += m_di.dy_start();
|
|
dist_end += m_di.dy_end();
|
|
*p1 = 0;
|
|
if(dist_end > 0 && dist_start <= 0)
|
|
{
|
|
*p1 = (cover_type)base_type::m_ren.cover(dist);
|
|
++npix;
|
|
}
|
|
++p1;
|
|
++dx;
|
|
}
|
|
|
|
dx = 1;
|
|
dist_start = m_di.dist_start();
|
|
dist_end = m_di.dist_end();
|
|
while((dist = base_type::m_dist[dx] + s1) <= base_type::m_width)
|
|
{
|
|
dist_start -= m_di.dy_start();
|
|
dist_end -= m_di.dy_end();
|
|
*--p0 = 0;
|
|
if(dist_end > 0 && dist_start <= 0)
|
|
{
|
|
*p0 = (cover_type)base_type::m_ren.cover(dist);
|
|
++npix;
|
|
}
|
|
++dx;
|
|
}
|
|
base_type::m_ren.blend_solid_hspan(base_type::m_x - dx + 1,
|
|
base_type::m_y,
|
|
unsigned(p1 - p0),
|
|
p0);
|
|
return npix && ++base_type::m_step < base_type::m_count;
|
|
}
|
|
|
|
private:
|
|
line_interpolator_aa3(const line_interpolator_aa3<Renderer>&);
|
|
const line_interpolator_aa3<Renderer>&
|
|
operator = (const line_interpolator_aa3<Renderer>&);
|
|
|
|
//---------------------------------------------------------------------
|
|
distance_interpolator3 m_di;
|
|
};
|
|
|
|
|
|
|
|
|
|
//==========================================================line_profile_aa
|
|
//
|
|
// See Implementation agg_line_profile_aa.cpp
|
|
//
|
|
class line_profile_aa
|
|
{
|
|
public:
|
|
//---------------------------------------------------------------------
|
|
typedef int8u value_type;
|
|
enum
|
|
{
|
|
subpixel_shift = line_subpixel_shift,
|
|
subpixel_size = 1 << subpixel_shift,
|
|
subpixel_mask = subpixel_size - 1
|
|
};
|
|
|
|
enum
|
|
{
|
|
aa_shift = 8,
|
|
aa_num = 1 << aa_shift,
|
|
aa_mask = aa_num - 1
|
|
};
|
|
|
|
//---------------------------------------------------------------------
|
|
~line_profile_aa() { delete [] m_profile; }
|
|
|
|
//---------------------------------------------------------------------
|
|
line_profile_aa() :
|
|
m_size(0),
|
|
m_profile(0),
|
|
m_subpixel_width(0),
|
|
m_min_width(1.0),
|
|
m_smoother_width(1.0)
|
|
{
|
|
int i;
|
|
for(i = 0; i < aa_num; i++) m_gamma[i] = (value_type)i;
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
template<class GammaF>
|
|
line_profile_aa(double w, const GammaF& gamma_function) :
|
|
m_size(0),
|
|
m_profile(0),
|
|
m_subpixel_width(0),
|
|
m_min_width(1.0),
|
|
m_smoother_width(1.0)
|
|
{
|
|
gamma(gamma_function);
|
|
width(w);
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
void min_width(double w) { m_min_width = w; }
|
|
void smoother_width(double w) { m_smoother_width = w; }
|
|
|
|
//---------------------------------------------------------------------
|
|
template<class GammaF> void gamma(const GammaF& gamma_function)
|
|
{
|
|
int i;
|
|
for(i = 0; i < aa_num; i++)
|
|
{
|
|
m_gamma[i] = value_type(
|
|
floor(
|
|
gamma_function(double(i) / aa_mask) * aa_mask + 0.5));
|
|
}
|
|
}
|
|
|
|
void width(double w);
|
|
|
|
unsigned profile_size() const { return m_size; }
|
|
int subpixel_width() const { return m_subpixel_width; }
|
|
|
|
//---------------------------------------------------------------------
|
|
double min_width() const { return m_min_width; }
|
|
double smoother_width() const { return m_smoother_width; }
|
|
|
|
//---------------------------------------------------------------------
|
|
value_type value(int dist) const
|
|
{
|
|
return m_profile[dist + subpixel_size*2];
|
|
}
|
|
|
|
private:
|
|
line_profile_aa(const line_profile_aa&);
|
|
const line_profile_aa& operator = (const line_profile_aa&);
|
|
|
|
value_type* profile(double w);
|
|
void set(double center_width, double smoother_width);
|
|
|
|
//---------------------------------------------------------------------
|
|
unsigned m_size;
|
|
value_type* m_profile;
|
|
value_type m_gamma[aa_num];
|
|
int m_subpixel_width;
|
|
double m_min_width;
|
|
double m_smoother_width;
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//======================================================renderer_outline_aa
|
|
template<class BaseRenderer> class renderer_outline_aa
|
|
{
|
|
public:
|
|
//---------------------------------------------------------------------
|
|
typedef BaseRenderer base_ren_type;
|
|
typedef renderer_outline_aa<base_ren_type> self_type;
|
|
typedef typename base_ren_type::color_type color_type;
|
|
|
|
//---------------------------------------------------------------------
|
|
renderer_outline_aa(base_ren_type& ren, const line_profile_aa& prof) :
|
|
m_ren(&ren),
|
|
m_profile(&prof)
|
|
{
|
|
}
|
|
|
|
//---------------------------------------------------------------------
|
|
void color(const color_type& c) { m_color = c; }
|
|
const color_type& color() const { return m_color; }
|
|
|
|
//---------------------------------------------------------------------
|
|
void profile(const line_profile_aa& prof) { m_profile = &prof; }
|
|
const line_profile_aa& profile() const { return *m_profile; }
|
|
line_profile_aa& profile() { return *m_profile; }
|
|
|
|
//---------------------------------------------------------------------
|
|
int subpixel_width() const { return m_profile->subpixel_width(); }
|
|
|
|
//---------------------------------------------------------------------
|
|
int cover(int d) const
|
|
{
|
|
return m_profile->value(d);
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
void blend_solid_hspan(int x, int y, unsigned len, const cover_type* covers)
|
|
{
|
|
m_ren->blend_solid_hspan(x, y, len, m_color, covers);
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
void blend_solid_vspan(int x, int y, unsigned len, const cover_type* covers)
|
|
{
|
|
m_ren->blend_solid_vspan(x, y, len, m_color, covers);
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
static bool accurate_join_only() { return false; }
|
|
|
|
//-------------------------------------------------------------------------
|
|
template<class Cmp>
|
|
void semidot_hline(Cmp cmp,
|
|
int xc1, int yc1, int xc2, int yc2,
|
|
int x1, int y1, int x2)
|
|
{
|
|
cover_type covers[line_interpolator_aa_base<self_type>::max_half_width * 2 + 4];
|
|
cover_type* p0 = covers;
|
|
cover_type* p1 = covers;
|
|
int x = x1 << line_subpixel_shift;
|
|
int y = y1 << line_subpixel_shift;
|
|
int w = subpixel_width();
|
|
distance_interpolator0 di(xc1, yc1, xc2, yc2, x, y);
|
|
x += line_subpixel_size/2;
|
|
y += line_subpixel_size/2;
|
|
|
|
int x0 = x1;
|
|
int dx = x - xc1;
|
|
int dy = y - yc1;
|
|
do
|
|
{
|
|
int d = int(fast_sqrt(dx*dx + dy*dy));
|
|
*p1 = 0;
|
|
if(cmp(di.dist()) && d <= w)
|
|
{
|
|
*p1 = (cover_type)cover(d);
|
|
}
|
|
++p1;
|
|
dx += line_subpixel_size;
|
|
di.inc_x();
|
|
}
|
|
while(++x1 <= x2);
|
|
m_ren->blend_solid_hspan(x0, y1,
|
|
unsigned(p1 - p0),
|
|
color(),
|
|
p0);
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
template<class Cmp>
|
|
void semidot(Cmp cmp, int xc1, int yc1, int xc2, int yc2)
|
|
{
|
|
int r = ((subpixel_width() + line_subpixel_mask) >> line_subpixel_shift);
|
|
if(r < 1) r = 1;
|
|
ellipse_bresenham_interpolator ei(r, r);
|
|
int dx = 0;
|
|
int dy = -r;
|
|
int dy0 = dy;
|
|
int dx0 = dx;
|
|
int x = xc1 >> line_subpixel_shift;
|
|
int y = yc1 >> line_subpixel_shift;
|
|
|
|
do
|
|
{
|
|
dx += ei.dx();
|
|
dy += ei.dy();
|
|
|
|
if(dy != dy0)
|
|
{
|
|
semidot_hline(cmp, xc1, yc1, xc2, yc2, x-dx0, y+dy0, x+dx0);
|
|
semidot_hline(cmp, xc1, yc1, xc2, yc2, x-dx0, y-dy0, x+dx0);
|
|
}
|
|
dx0 = dx;
|
|
dy0 = dy;
|
|
++ei;
|
|
}
|
|
while(dy < 0);
|
|
semidot_hline(cmp, xc1, yc1, xc2, yc2, x-dx0, y+dy0, x+dx0);
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
void line0(const line_parameters& lp)
|
|
{
|
|
line_interpolator_aa0<self_type> li(*this, lp);
|
|
if(li.count())
|
|
{
|
|
if(li.vertical())
|
|
{
|
|
while(li.step_ver());
|
|
}
|
|
else
|
|
{
|
|
while(li.step_hor());
|
|
}
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
void line1(const line_parameters& lp, int sx, int sy)
|
|
{
|
|
line_interpolator_aa1<self_type> li(*this, lp, sx, sy);
|
|
if(li.vertical())
|
|
{
|
|
while(li.step_ver());
|
|
}
|
|
else
|
|
{
|
|
while(li.step_hor());
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
void line2(const line_parameters& lp, int ex, int ey)
|
|
{
|
|
line_interpolator_aa2<self_type> li(*this, lp, ex, ey);
|
|
if(li.vertical())
|
|
{
|
|
while(li.step_ver());
|
|
}
|
|
else
|
|
{
|
|
while(li.step_hor());
|
|
}
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
void line3(const line_parameters& lp,
|
|
int sx, int sy, int ex, int ey)
|
|
{
|
|
line_interpolator_aa3<self_type> li(*this, lp, sx, sy, ex, ey);
|
|
if(li.vertical())
|
|
{
|
|
while(li.step_ver());
|
|
}
|
|
else
|
|
{
|
|
while(li.step_hor());
|
|
}
|
|
}
|
|
|
|
private:
|
|
base_ren_type* m_ren;
|
|
const line_profile_aa* m_profile;
|
|
color_type m_color;
|
|
};
|
|
|
|
|
|
|
|
}
|
|
|
|
#endif
|