From a493be5825d15f6a94d1afb5910db075a2a7abc1 Mon Sep 17 00:00:00 2001
From: Mathias Agopian <mathias@google.com>
Date: Fri, 15 Mar 2013 16:08:10 -0700
Subject: [PATCH] don't capture hidden layers in screenshots

Bug: 8389956
Change-Id: I9ed836395258732c743c6fd44092bd01020dde13
---
 services/surfaceflinger/SurfaceFlinger.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 98f6dedcc..40876eced 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2719,9 +2719,11 @@ status_t SurfaceFlinger::captureScreenImplLocked(
         const Layer::State& state(layer->drawingState());
         if (state.layerStack == hw->getLayerStack()) {
             if (state.z >= minLayerZ && state.z <= maxLayerZ) {
-                if (filtering) layer->setFiltering(true);
-                layer->draw(hw);
-                if (filtering) layer->setFiltering(false);
+                if (layer->isVisible()) {
+                    if (filtering) layer->setFiltering(true);
+                    layer->draw(hw);
+                    if (filtering) layer->setFiltering(false);
+                }
             }
         }
     }