From 4c71de20a83b99d5e632b668b10bfb475634f1d2 Mon Sep 17 00:00:00 2001
From: Vishnu Nair <vishnun@google.com>
Date: Fri, 19 Apr 2019 10:18:08 -0700
Subject: [PATCH] WinScope: Support missing layers

The new sf layer transform changes breaks when missing layers are added since they do not contain transform
data. Fix this is by adding a transform when creating missing layers.

Also set the transform type when populating transform matrices so they are displayed as IDENTITY.

Test: Open trace from bug
Fixes: 130886882
Change-Id: I85f52bd3dc9174499c4a4840c6b5e80555f28fc7
---
 tools/winscope/src/matrix_utils.js | 1 +
 tools/winscope/src/transform_sf.js | 1 +
 2 files changed, 2 insertions(+)

diff --git a/tools/winscope/src/matrix_utils.js b/tools/winscope/src/matrix_utils.js
index 057ffce22..6d7d44fdb 100644
--- a/tools/winscope/src/matrix_utils.js
+++ b/tools/winscope/src/matrix_utils.js
@@ -135,6 +135,7 @@ function fill_transform_data(transform) {
       transform.dtdx = 0.0;
       transform.dsdy = 0.0;
       transform.dtdy = 1.0;
+      transform.type = 0;
       return;
     }
 
diff --git a/tools/winscope/src/transform_sf.js b/tools/winscope/src/transform_sf.js
index 99489e352..809c54ffa 100644
--- a/tools/winscope/src/transform_sf.js
+++ b/tools/winscope/src/transform_sf.js
@@ -198,6 +198,7 @@ function missingLayer(childId) {
     name: "layer #" + childId,
     missing: true,
     zOrderRelativeOf: -1,
+    transform: {dsdx:1, dtdx:0, dsdy:0, dtdy:1},
   }
 }