From 82a70bdde0c4b170bb769666a50870a0a065aa09 Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <matthias@koefferlein.de>
Date: Sat, 2 Jan 2021 20:33:16 +0100
Subject: [PATCH] WIP: negative output of DRC functions.

---
 src/db/db/dbRegionUtils.cc              |  8 +++-
 src/db/unit_tests/dbRegionUtilsTests.cc | 50 ++++++++++++++++++++++++-
 2 files changed, 54 insertions(+), 4 deletions(-)

diff --git a/src/db/db/dbRegionUtils.cc b/src/db/db/dbRegionUtils.cc
index 8927422c1..bb92f1990 100644
--- a/src/db/db/dbRegionUtils.cc
+++ b/src/db/db/dbRegionUtils.cc
@@ -152,7 +152,7 @@ Edge2EdgeCheckBase::feed_pseudo_edges (db::box_scanner<db::Edge, size_t> &scanne
 {
   if (m_pass == 1) {
     for (std::set<std::pair<db::Edge, size_t> >::const_iterator e = m_pseudo_edges.begin (); e != m_pseudo_edges.end (); ++e) {
-// @@@printf("@@@ PSEUDO %s[%d]\n", e->first.to_string().c_str(), int(e->second)); fflush(stdout);
+//printf("@@@ PSEUDO %s[%d]\n", e->first.to_string().c_str(), int(e->second)); fflush(stdout);
       scanner.insert (&e->first, e->second);
     }
   }
@@ -189,7 +189,11 @@ Edge2EdgeCheckBase::add (const db::Edge *o1, size_t p1, const db::Edge *o2, size
 
         if (m_has_negative_edge_output) {
           m_pseudo_edges.insert (std::make_pair (db::Edge (ep.first ().p1 (), ep.second ().p2 ()), p1));
-          m_pseudo_edges.insert (std::make_pair (db::Edge (ep.second ().p1 (), ep.first ().p2 ()), p2));
+          m_pseudo_edges.insert (std::make_pair (db::Edge (ep.second ().p1 (), ep.first ().p2 ()), p1));
+          if (p1 != p2) {
+            m_pseudo_edges.insert (std::make_pair (db::Edge (ep.first ().p1 (), ep.second ().p2 ()), p2));
+            m_pseudo_edges.insert (std::make_pair (db::Edge (ep.second ().p1 (), ep.first ().p2 ()), p2));
+          }
         }
 
       }
diff --git a/src/db/unit_tests/dbRegionUtilsTests.cc b/src/db/unit_tests/dbRegionUtilsTests.cc
index e23fa3116..865d2c2d3 100644
--- a/src/db/unit_tests/dbRegionUtilsTests.cc
+++ b/src/db/unit_tests/dbRegionUtilsTests.cc
@@ -231,7 +231,53 @@ TEST(5_LShapeNotch)
     poly_check.enter (poly, 0);
   } while (e2e.prepare_next_pass ());
 
-  EXPECT_EQ (tl::to_string (ep), "(0,0;0,3000),(2000,0;0,0),(2000,500;2000,0),(0,3000;2000,3000),(2000,3000;2000,1500)");
-  EXPECT_EQ (tl::to_string (ee1), "");
+  EXPECT_EQ (tl::to_string (ep), "(1500,1500;1500,2500)/(500,2500;500,1500),(2000,1500;1500,1500)/(1500,500;2000,500)");
+  EXPECT_EQ (tl::to_string (ee1), "(0,0;0,3000),(2000,0;0,0),(2000,500;2000,0),(0,3000;2000,3000),(2000,3000;2000,1500)");
   EXPECT_EQ (tl::to_string (ee2), "");
 }
+
+TEST(6_SeparationLvsBox)
+{
+  std::set<db::EdgePair> ep;
+  std::set<db::Edge> ee1, ee2;
+
+  db::EdgeRelationFilter er (db::SpaceRelation, 1001, db::Projection);
+
+  db::edge2edge_check_with_negative_output<std::set<db::EdgePair>, std::set<db::Edge> > e2e (er, ep, ee1, ee2, false, true /*different layers*/, false);
+
+  db::Point pts1[] = {
+    db::Point (0, 0),
+    db::Point (0, 3000),
+    db::Point (3000, 3000),
+    db::Point (3000, 2000),
+    db::Point (1000, 2000),
+    db::Point (1000, 0)
+  };
+
+  db::Polygon poly1;
+  poly1.assign_hull (pts1, pts1 + sizeof (pts1) / sizeof (pts1[0]));
+
+  db::Point pts2[] = {
+    db::Point (2000, 0),
+    db::Point (2000, 1000),
+    db::Point (3000, 1000),
+    db::Point (3000, 0)
+  };
+
+  db::Polygon poly2;
+  poly2.assign_hull (pts2, pts2 + sizeof (pts2) / sizeof (pts2[0]));
+
+  db::box_scanner<db::Polygon, size_t> scanner;
+  scanner.insert (&poly1, 0);  //  layer 0
+  scanner.insert (&poly2, 1);  //  layer 1
+
+  db::poly2poly_check_base<db::Polygon> poly_check (e2e);
+
+  do {
+    scanner.process (poly_check, er.distance (), db::box_convert<db::Polygon> ());
+  } while (e2e.prepare_next_pass ());
+
+  EXPECT_EQ (tl::to_string (ep), "(1000,1000;1000,0)/(2000,0;2000,1000),(3000,2000;2000,2000)/(2000,1000;3000,1000)");
+  EXPECT_EQ (tl::to_string (ee1), "(0,0;0,3000),(1000,0;0,0),(0,3000;3000,3000),(3000,3000;3000,2000)");
+  EXPECT_EQ (tl::to_string (ee2), "(3000,0;2000,0),(3000,1000;3000,0)");
+}