From 59aa58aa7b829beef87d4cbf08b024f88aa160b8 Mon Sep 17 00:00:00 2001
From: "yu.dongliang" <18588496441@163.com>
Date: Mon, 30 Oct 2023 17:40:44 +0800
Subject: [PATCH] tmp

---
 ses_layout.c | 131 +++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 112 insertions(+), 19 deletions(-)

diff --git a/ses_layout.c b/ses_layout.c
index 32d7939..635e659 100644
--- a/ses_layout.c
+++ b/ses_layout.c
@@ -687,6 +687,33 @@ static void __ses_xchg_components(ScfEfunction* f, int d)
 	}
 }
 
+static inline void __ses_flip_neg(ScfEcomponent* c)
+{
+	ScfEpin* p;
+	size_t   i;
+
+	for (i = 0; i < c->n_pins; i++) {
+		p  =        c->pins[i];
+
+		if (p->x > 0)
+			p->x = -p->x;
+	}
+}
+
+static inline void __ses_flip_pos(ScfEcomponent* c)
+{
+	ScfEpin* p;
+	size_t   i;
+
+	for (i = 0; i < c->n_pins; i++) {
+		p  =        c->pins[i];
+
+		if (p->x < 0)
+			p->x = -p->x;
+	}
+}
+
+
 static void __ses_de_cross(ScfEfunction* f, int d)
 {
 	ScfEcomponent* c0;
@@ -735,23 +762,13 @@ static void __ses_de_cross(ScfEfunction* f, int d)
 
 							if (y0 < y2 && y2 < y1 && y1 < y3) {
 
-								if (p2->x > 0) {
-									if (p0->x > 0)
-										p0->x = -p0->x;
-
-									if (p1->x > 0)
-										p1->x = -p1->x;
-								}
+								if (p2->x > 0)
+									__ses_flip_neg(c0);
 
 							} else if (y2 < y0 && y0 < y3 && y3 < y1) {
 
-								if (p0->x > 0) {
-									if (p2->x > 0)
-										p2->x = -p2->x;
-
-									if (p3->x > 0)
-										p3->x = -p3->x;
-								}
+								if (p0->x > 0)
+									__ses_flip_neg(c1);
 							}
 						}
 					}
@@ -809,17 +826,93 @@ static void __ses_de_cross(ScfEfunction* f, int d)
 				}
 			}
 
-			if (p0->x < 0)
-				p0->x = -p0->x;
-
-			if (p1->x < 0)
-				p1->x = -p1->x;
+			__ses_flip_pos(c0);
 		}
 next:
 		c0 = NULL;
 	}
 }
 
+static inline void __ses_xchg_cx2(ScfEcomponent* c0, ScfEcomponent* c1)
+{
+	ScfEpin* p;
+	size_t   i;
+
+	int      cx0 = c0->x;
+	int      cx1 = c1->x;
+
+	SCF_XCHG(c0->x, c1->x);
+
+	for (i = 0; i < c0->n_pins; i++) {
+		p         = c0->pins[i];
+
+		if (i < 2)
+			p->x = c0->x;
+		else
+			p->x = c0->x - cx0;
+	}
+
+	for (i = 0; i < c1->n_pins; i++) {
+		p         = c1->pins[i];
+
+		if (i < 2)
+			p->x = c1->x;
+		else
+			p->x = c1->x - cx1;
+	}
+}
+
+static inline void __ses_xchg_cx(ScfEfunction* f, int d)
+{
+	ScfEcomponent* c0;
+	ScfEcomponent* c1;
+	ScfEpin*       p0;
+	ScfEpin*       p1;
+	ScfEpin*       p2;
+	ScfEpin*       p3;
+
+	size_t i;
+	size_t j;
+
+	for (i = 0; i < f->n_components - 1; i++) {
+		c0 =        f->components[i];
+
+		p0 =  c0->pins[0];
+		p1 =  c0->pins[1];
+
+		if (p0->y - p1->y <= d && p0->y - p1->y >= -d)
+			continue;
+
+		int y0 = p0->y < p1->y ? p0->y : p1->y;
+		int y1 = p0->y < p1->y ? p1->y : p0->y;
+
+		for (j = i + 1; j < f->n_components; j++) {
+			c1 =            f->components[j];
+
+			if ((c0->x < 0 && c1->x > 0) || (c0->x > 0 && c1->x < 0))
+				continue;
+
+			p2 =  c1->pins[0];
+			p3 =  c1->pins[1];
+
+			if (p2->y - p3->y <= d && p2->y - p3->y >= -d)
+				continue;
+
+			int y2 = p2->y < p3->y ? p2->y : p3->y;
+			int y3 = p2->y < p3->y ? p3->y : p2->y;
+
+			if (y0 < y2 && y3 < y1) {
+				if ((c0->x < 0 && c0->x > c1->x) || (c0->x > 0 && c0->x < c1->x))
+					__ses_xchg_cx2(c0, c1);
+
+			} else if (y2 < y0 && y1 < y3) {
+				if ((c0->x < 0 && c0->x < c1->x) || (c0->x > 0 && c0->x > c1->x))
+					__ses_xchg_cx2(c0, c1);
+			}
+		}
+	}
+}
+
 int ses_layout_function(ScfEfunction* f, int d)
 {
 	ScfEcomponent* c;
-- 
2.25.1