summaryrefslogtreecommitdiff
path: root/agg/inc/agg_rasterizer_outline_aa.h
diff options
context:
space:
mode:
Diffstat (limited to 'agg/inc/agg_rasterizer_outline_aa.h')
-rwxr-xr-xagg/inc/agg_rasterizer_outline_aa.h516
1 files changed, 0 insertions, 516 deletions
diff --git a/agg/inc/agg_rasterizer_outline_aa.h b/agg/inc/agg_rasterizer_outline_aa.h
deleted file mode 100755
index 3f4d6395fafa..000000000000
--- a/agg/inc/agg_rasterizer_outline_aa.h
+++ /dev/null
@@ -1,516 +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
-//----------------------------------------------------------------------------
-#ifndef AGG_RASTERIZER_OUTLINE_AA_INCLUDED
-#define AGG_RASTERIZER_OUTLINE_AA_INCLUDED
-
-#include "agg_basics.h"
-#include "agg_line_aa_basics.h"
-#include "agg_vertex_sequence.h"
-
-namespace agg
-{
-
- //-------------------------------------------------------------------------
- inline bool cmp_dist_start(int d) { return d > 0; }
- inline bool cmp_dist_end(int d) { return d <= 0; }
-
-
-
- //-----------------------------------------------------------line_aa_vertex
- // Vertex (x, y) with the distance to the next one. The last vertex has
- // the distance between the last and the first points
- struct line_aa_vertex
- {
- int x;
- int y;
- int len;
-
- line_aa_vertex() {}
- line_aa_vertex(int x_, int y_) :
- x(x_),
- y(y_),
- len(0)
- {
- }
-
- bool operator () (const line_aa_vertex& val)
- {
- double dx = val.x - x;
- double dy = val.y - y;
- return (len = int(sqrt(dx * dx + dy * dy))) >
- (line_subpixel_size + line_subpixel_size / 2);
- }
- };
-
-
-
-
- //=======================================================rasterizer_outline_aa
- template<class Renderer> class rasterizer_outline_aa
- {
- private:
- //------------------------------------------------------------------------
- struct draw_vars
- {
- unsigned idx;
- int x1, y1, x2, y2;
- line_parameters curr, next;
- int lcurr, lnext;
- int xb1, yb1, xb2, yb2;
- unsigned flags;
- };
-
- void draw(draw_vars& dv, unsigned start, unsigned end);
-
- public:
- typedef line_aa_vertex vertex_type;
- typedef vertex_sequence<vertex_type, 6> vertex_storage_type;
-
- rasterizer_outline_aa(Renderer& ren) :
- m_ren(ren),
- m_accurate_join(m_ren.accurate_join_only()),
- m_round_cap(false),
- m_start_x(0),
- m_start_y(0)
- {
- }
-
- //------------------------------------------------------------------------
- void accurate_join(bool v)
- {
- m_accurate_join = m_ren.accurate_join_only() ? true : v;
- }
- bool accurate_join() const { return m_accurate_join; }
-
- //------------------------------------------------------------------------
- void round_cap(bool v) { m_round_cap = v; }
- bool round_cap() const { return m_round_cap; }
-
- //------------------------------------------------------------------------
- void move_to(int x, int y)
- {
- m_src_vertices.modify_last(vertex_type(m_start_x = x, m_start_y = y));
- }
-
- //------------------------------------------------------------------------
- void line_to(int x, int y)
- {
- m_src_vertices.add(vertex_type(x, y));
- }
-
- //------------------------------------------------------------------------
- void move_to_d(double x, double y)
- {
- move_to(line_coord(x), line_coord(y));
- }
-
- //------------------------------------------------------------------------
- void line_to_d(double x, double y)
- {
- line_to(line_coord(x), line_coord(y));
- }
-
- //------------------------------------------------------------------------
- void render(bool close_polygon);
-
- //------------------------------------------------------------------------
- void add_vertex(double x, double y, unsigned cmd)
- {
- if(is_move_to(cmd))
- {
- render(false);
- move_to_d(x, y);
- }
- else
- {
- if(is_end_poly(cmd))
- {
- render(is_closed(cmd));
- if(is_closed(cmd))
- {
- move_to(m_start_x, m_start_y);
- }
- }
- else
- {
- line_to_d(x, y);
- }
- }
- }
-
- //------------------------------------------------------------------------
- template<class VertexSource>
- void add_path(VertexSource& vs, unsigned id=0)
- {
- double x;
- double y;
-
- unsigned cmd;
- vs.rewind(id);
- while(!is_stop(cmd = vs.vertex(&x, &y)))
- {
- add_vertex(x, y, cmd);
- }
- render(false);
- }
-
-
- //------------------------------------------------------------------------
- template<class VertexSource, class ColorStorage, class PathId>
- void render_all_paths(VertexSource& vs,
- const ColorStorage& colors,
- const PathId& id,
- unsigned num_paths)
- {
- for(unsigned i = 0; i < num_paths; i++)
- {
- m_ren.color(colors[i]);
- add_path(vs, id[i]);
- }
- }
-
-
- //------------------------------------------------------------------------
- template<class Ctrl> void render_ctrl(Ctrl& c)
- {
- unsigned i;
- for(i = 0; i < c.num_paths(); i++)
- {
- m_ren.color(c.color(i));
- add_path(c, i);
- }
- }
-
- private:
- rasterizer_outline_aa(const rasterizer_outline_aa<Renderer>&);
- const rasterizer_outline_aa<Renderer>& operator =
- (const rasterizer_outline_aa<Renderer>&);
-
- Renderer& m_ren;
- vertex_storage_type m_src_vertices;
- bool m_accurate_join;
- bool m_round_cap;
- int m_start_x;
- int m_start_y;
- };
-
-
-
-
-
-
-
-
- //----------------------------------------------------------------------------
- template<class Renderer>
- void rasterizer_outline_aa<Renderer>::draw(draw_vars& dv, unsigned start, unsigned end)
- {
- unsigned i;
- const vertex_storage_type::value_type* v;
-
- for(i = start; i < end; i++)
- {
- switch(dv.flags)
- {
- case 0: m_ren.line3(dv.curr, dv.xb1, dv.yb1, dv.xb2, dv.yb2); break;
- case 1: m_ren.line2(dv.curr, dv.xb2, dv.yb2); break;
- case 2: m_ren.line1(dv.curr, dv.xb1, dv.yb1); break;
- case 3: m_ren.line0(dv.curr); break;
- }
-
- dv.x1 = dv.x2;
- dv.y1 = dv.y2;
- dv.lcurr = dv.lnext;
- dv.lnext = m_src_vertices[dv.idx].len;
-
- ++dv.idx;
- if(dv.idx >= m_src_vertices.size()) dv.idx = 0;
-
- v = &m_src_vertices[dv.idx];
- dv.x2 = v->x;
- dv.y2 = v->y;
-
- dv.curr = dv.next;
- dv.next = line_parameters(dv.x1, dv.y1, dv.x2, dv.y2, dv.lnext);
- dv.xb1 = dv.xb2;
- dv.yb1 = dv.yb2;
-
- if(m_accurate_join)
- {
- dv.flags = 0;
- }
- else
- {
- dv.flags >>= 1;
- dv.flags |= ((dv.curr.diagonal_quadrant() ==
- dv.next.diagonal_quadrant()) << 1);
- }
-
- if((dv.flags & 2) == 0)
- {
- bisectrix(dv.curr, dv.next, &dv.xb2, &dv.yb2);
- }
- }
- }
-
-
-
-
- //----------------------------------------------------------------------------
- template<class Renderer>
- void rasterizer_outline_aa<Renderer>::render(bool close_polygon)
- {
- m_src_vertices.close(close_polygon);
- draw_vars dv;
- const vertex_storage_type::value_type* v;
- int x1;
- int y1;
- int x2;
- int y2;
- int lprev;
-
- if(close_polygon)
- {
- if(m_src_vertices.size() >= 3)
- {
- dv.idx = 2;
-
- v = &m_src_vertices[m_src_vertices.size() - 1];
- x1 = v->x;
- y1 = v->y;
- lprev = v->len;
-
- v = &m_src_vertices[0];
- x2 = v->x;
- y2 = v->y;
- dv.lcurr = v->len;
- line_parameters prev(x1, y1, x2, y2, lprev);
-
- v = &m_src_vertices[1];
- dv.x1 = v->x;
- dv.y1 = v->y;
- dv.lnext = v->len;
- dv.curr = line_parameters(x2, y2, dv.x1, dv.y1, dv.lcurr);
-
- v = &m_src_vertices[dv.idx];
- dv.x2 = v->x;
- dv.y2 = v->y;
- dv.next = line_parameters(dv.x1, dv.y1, dv.x2, dv.y2, dv.lnext);
-
- dv.xb1 = 0;
- dv.yb1 = 0;
- dv.xb2 = 0;
- dv.yb2 = 0;
-
- if(m_accurate_join)
- {
- dv.flags = 0;
- }
- else
- {
- dv.flags =
- (prev.diagonal_quadrant() == dv.curr.diagonal_quadrant()) |
- ((dv.curr.diagonal_quadrant() == dv.next.diagonal_quadrant()) << 1);
- }
-
- if((dv.flags & 1) == 0)
- {
- bisectrix(prev, dv.curr, &dv.xb1, &dv.yb1);
- }
-
- if((dv.flags & 2) == 0)
- {
- bisectrix(dv.curr, dv.next, &dv.xb2, &dv.yb2);
- }
- draw(dv, 0, m_src_vertices.size());
- }
- }
- else
- {
- switch(m_src_vertices.size())
- {
- case 0:
- case 1:
- break;
-
- case 2:
- {
- v = &m_src_vertices[0];
- x1 = v->x;
- y1 = v->y;
- lprev = v->len;
- v = &m_src_vertices[1];
- x2 = v->x;
- y2 = v->y;
- line_parameters lp(x1, y1, x2, y2, lprev);
- if(m_round_cap)
- {
- m_ren.semidot(cmp_dist_start, x1, y1, x1 + (y2 - y1), y1 - (x2 - x1));
- }
- m_ren.line3(lp,
- x1 + (y2 - y1),
- y1 - (x2 - x1),
- x2 + (y2 - y1),
- y2 - (x2 - x1));
- if(m_round_cap)
- {
- m_ren.semidot(cmp_dist_end, x2, y2, x2 + (y2 - y1), y2 - (x2 - x1));
- }
- }
- break;
-
- case 3:
- {
- int x3, y3;
- int lnext;
- v = &m_src_vertices[0];
- x1 = v->x;
- y1 = v->y;
- lprev = v->len;
- v = &m_src_vertices[1];
- x2 = v->x;
- y2 = v->y;
- lnext = v->len;
- v = &m_src_vertices[2];
- x3 = v->x;
- y3 = v->y;
- line_parameters lp1(x1, y1, x2, y2, lprev);
- line_parameters lp2(x2, y2, x3, y3, lnext);
- bisectrix(lp1, lp2, &dv.xb1, &dv.yb1);
-
- if(m_round_cap)
- {
- m_ren.semidot(cmp_dist_start, x1, y1, x1 + (y2 - y1), y1 - (x2 - x1));
- }
- m_ren.line3(lp1,
- x1 + (y2 - y1),
- y1 - (x2 - x1),
- dv.xb1,
- dv.yb1);
-
- m_ren.line3(lp2,
- dv.xb1,
- dv.yb1,
- x3 + (y3 - y2),
- y3 - (x3 - x2));
- if(m_round_cap)
- {
- m_ren.semidot(cmp_dist_end, x3, y3, x3 + (y3 - y2), y3 - (x3 - x2));
- }
- }
- break;
-
- default:
- {
- dv.idx = 3;
-
- v = &m_src_vertices[0];
- x1 = v->x;
- y1 = v->y;
- lprev = v->len;
-
- v = &m_src_vertices[1];
- x2 = v->x;
- y2 = v->y;
- dv.lcurr = v->len;
- line_parameters prev(x1, y1, x2, y2, lprev);
-
- v = &m_src_vertices[2];
- dv.x1 = v->x;
- dv.y1 = v->y;
- dv.lnext = v->len;
- dv.curr = line_parameters(x2, y2, dv.x1, dv.y1, dv.lcurr);
-
- v = &m_src_vertices[dv.idx];
- dv.x2 = v->x;
- dv.y2 = v->y;
- dv.next = line_parameters(dv.x1, dv.y1, dv.x2, dv.y2, dv.lnext);
-
- dv.xb1 = 0;
- dv.yb1 = 0;
- dv.xb2 = 0;
- dv.yb2 = 0;
-
- if(m_accurate_join)
- {
- dv.flags = 0;
- }
- else
- {
- dv.flags =
- (prev.diagonal_quadrant() == dv.curr.diagonal_quadrant()) |
- ((dv.curr.diagonal_quadrant() == dv.next.diagonal_quadrant()) << 1);
- }
-
- if((dv.flags & 1) == 0)
- {
- bisectrix(prev, dv.curr, &dv.xb1, &dv.yb1);
- m_ren.line3(prev,
- x1 + (y2 - y1),
- y1 - (x2 - x1),
- dv.xb1,
- dv.yb1);
- }
- else
- {
- m_ren.line1(prev,
- x1 + (y2 - y1),
- y1 - (x2 - x1));
- }
- if(m_round_cap)
- {
- m_ren.semidot(cmp_dist_start, x1, y1, x1 + (y2 - y1), y1 - (x2 - x1));
- }
- if((dv.flags & 2) == 0)
- {
- bisectrix(dv.curr, dv.next, &dv.xb2, &dv.yb2);
- }
-
- draw(dv, 1, m_src_vertices.size() - 2);
-
- if((dv.flags & 1) == 0)
- {
- m_ren.line3(dv.curr,
- dv.xb1,
- dv.yb1,
- dv.curr.x2 + (dv.curr.y2 - dv.curr.y1),
- dv.curr.y2 - (dv.curr.x2 - dv.curr.x1));
- }
- else
- {
- m_ren.line2(dv.curr,
- dv.curr.x2 + (dv.curr.y2 - dv.curr.y1),
- dv.curr.y2 - (dv.curr.x2 - dv.curr.x1));
- }
- if(m_round_cap)
- {
- m_ren.semidot(cmp_dist_end, dv.curr.x2, dv.curr.y2,
- dv.curr.x2 + (dv.curr.y2 - dv.curr.y1),
- dv.curr.y2 - (dv.curr.x2 - dv.curr.x1));
- }
-
- }
- break;
- }
- }
- m_src_vertices.remove_all();
- }
-
-
-}
-
-
-#endif
-
generated by cgit (git 2.34.1) at 2024-05-17 06:35:51 +0000