From 8ce50a2f1490f8155b078f7dd66b1298da59abd3 Mon Sep 17 00:00:00 2001
From: Rahul Kumar <rahulkumar@berkeley.edu>
Date: Sun, 29 Sep 2024 12:50:48 -0700
Subject: [PATCH] add OUTLINE layer to tgate mux cells (#460)

---
 src/blocks/tgatemux/layout.rs    | 21 +++++++++++++++++++++
 src/blocks/wrdriver/schematic.rs |  6 ++----
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/src/blocks/tgatemux/layout.rs b/src/blocks/tgatemux/layout.rs
index 3a2fd5de..f7f7a3fd 100644
--- a/src/blocks/tgatemux/layout.rs
+++ b/src/blocks/tgatemux/layout.rs
@@ -327,6 +327,9 @@ impl TGateMux {
             ctx.draw_rect(nsdm, Rect::from_spans(bounds.hspan(), span));
         }
 
+        let outline = layers.get(Selector::Name("outline"))?;
+        ctx.draw_rect(outline, ctx.brect());
+
         Ok(())
     }
 }
@@ -437,6 +440,7 @@ fn tgate_mux_tap_layout(
     let nwell = layers.get(Selector::Name("nwell"))?;
     let nsdm = layers.get(Selector::Name("nsdm"))?;
     let psdm = layers.get(Selector::Name("psdm"))?;
+    let outline = layers.get(Selector::Name("outline"))?;
 
     // Draw n+ tap to nwell.
     let viap = ViaParams::builder()
@@ -505,6 +509,12 @@ fn tgate_mux_tap_layout(
     ctx.draw_rect(nwell, ntap_bounds);
     ctx.draw_rect(nsdm, ntap_bounds);
 
+    let mux_outline = mux.layer_bbox(outline).into_rect();
+    ctx.draw_rect(
+        outline,
+        Rect::from_spans(ctx.brect().hspan(), mux_outline.vspan()),
+    );
+
     Ok(())
 }
 
@@ -594,6 +604,17 @@ impl TGateMuxGroup {
             ctx.add_port(CellPort::with_shape(port_name, pc.h_metal, brm2))?;
         }
 
+        let layers = ctx.layers();
+        let outline = layers.get(Selector::Name("outline"))?;
+        let mux_outline = gate.layer_bbox(outline).into_rect();
+        ctx.draw_rect(
+            outline,
+            Rect::from_spans(
+                ctx.brect().hspan(),
+                mux_outline.vspan().translate(tiler.translation(0).y),
+            ),
+        );
+
         Ok(())
     }
 }
diff --git a/src/blocks/wrdriver/schematic.rs b/src/blocks/wrdriver/schematic.rs
index 2a214a3f..113fe14a 100644
--- a/src/blocks/wrdriver/schematic.rs
+++ b/src/blocks/wrdriver/schematic.rs
@@ -1,9 +1,7 @@
 use substrate::schematic::circuit::Direction;
 
-use crate::blocks::{
-    delay_line::tristate::TristateInv,
-    gate::{And2, AndParams, PrimitiveGateParams},
-};
+use crate::blocks::delay_line::tristate::TristateInv;
+use crate::blocks::gate::{And2, AndParams, PrimitiveGateParams};
 
 use super::WriteDriver;