From a887c19994c7873fbe651e2fe944a176576a6198 Mon Sep 17 00:00:00 2001
From: Saurabh Shah <saurshah@codeaurora.org>
Date: Mon, 21 Mar 2016 17:25:23 -0700
Subject: SF: Add support for all flips of panel mount

Add support for all flips of panel mount, H, V, HV (180). Property
persist.panel.mountflip can be set to 1 for H-Flip, 2 for V-Flip,
3 for HV-Flip (180 / inverse mount).

Change-Id: Ide7b8378ad6a423e5d7335fedc27d480a25b53ae
CRs-fixed: 990622
---
 services/surfaceflinger/DisplayDevice.cpp  | 12 ++++++------
 services/surfaceflinger/DisplayDevice.h    |  8 ++++----
 services/surfaceflinger/LayerBlur.cpp      |  3 +--
 services/surfaceflinger/SurfaceFlinger.cpp |  5 ++---
 4 files changed, 13 insertions(+), 15 deletions(-)

diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index 92ccf2f..b83149b 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -142,10 +142,10 @@ DisplayDevice::DisplayDevice(
             break;
     }
 
-    mPanelInverseMounted = false;
-    // Check if panel is inverse mounted (contents show up HV flipped)
-    property_get("persist.panel.inversemounted", property, "0");
-    mPanelInverseMounted = !!atoi(property);
+    mPanelMountFlip = 0;
+    // 1: H-Flip, 2: V-Flip, 3: 180 (HV Flip)
+    property_get("persist.panel.mountflip", property, "0");
+    mPanelMountFlip = atoi(property);
 
     // initialize the display orientation transform.
     setProjection(DisplayState::eOrientationDefault, mViewport, mFrame);
@@ -428,8 +428,8 @@ status_t DisplayDevice::orientationToTransfrom(
         return BAD_VALUE;
     }
 
-    if (DISPLAY_PRIMARY == mHwcDisplayId && isPanelInverseMounted()) {
-        flags = flags ^ Transform::ROT_180;
+    if (DISPLAY_PRIMARY == mHwcDisplayId) {
+        flags = flags ^ getPanelMountFlip();
     }
 
     tr->set(flags, w, h);
diff --git a/services/surfaceflinger/DisplayDevice.h b/services/surfaceflinger/DisplayDevice.h
index f492a42..9023ce9 100644
--- a/services/surfaceflinger/DisplayDevice.h
+++ b/services/surfaceflinger/DisplayDevice.h
@@ -126,8 +126,8 @@ public:
     int32_t                 getHwcDisplayId() const { return mHwcDisplayId; }
     const wp<IBinder>&      getDisplayToken() const { return mDisplayToken; }
 
-    bool isPanelInverseMounted() const {
-        return mPanelInverseMounted;
+    uint32_t getPanelMountFlip() const {
+        return mPanelMountFlip;
     }
 
     // We pass in mustRecompose so we can keep VirtualDisplaySurface's state
@@ -230,8 +230,8 @@ private:
     int mPowerMode;
     // Current active config
     int mActiveConfig;
-    // Panel is inverse mounted
-    int mPanelInverseMounted;
+    // Panel's mount flip, H, V or 180 (HV)
+    uint32_t mPanelMountFlip;
 };
 
 }; // namespace android
diff --git a/services/surfaceflinger/LayerBlur.cpp b/services/surfaceflinger/LayerBlur.cpp
index 021978d..4f5a72d 100644
--- a/services/surfaceflinger/LayerBlur.cpp
+++ b/services/surfaceflinger/LayerBlur.cpp
@@ -238,8 +238,7 @@ bool LayerBlur::captureScreen(const sp<const DisplayDevice>& hw, FBO& fbo, Textu
             texture.getTextureName(), 0);
 
     mFlinger->getRenderEngine().clearWithColor(0.0f, 0.0f, 0.0f, 1.0f);
-    if (hw->isPanelInverseMounted())
-        rotation =  Transform::ROT_180;
+    rotation = (Transform::orientation_flags)(rotation ^ hw->getPanelMountFlip());
     mFlinger->renderScreenImplLocked(
                 hw,
                 Rect(0,0,width,height),
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 40e5da1..97d3163 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -3463,10 +3463,9 @@ void SurfaceFlinger::renderScreenImplLocked(
     // make sure to clear all GL error flags
     engine.checkErrors();
 
-    if (DisplayDevice::DISPLAY_PRIMARY == hw->getDisplayType() &&
-                hw->isPanelInverseMounted()) {
+    if (DisplayDevice::DISPLAY_PRIMARY == hw->getDisplayType()) {
         rotation = (Transform::orientation_flags)
-                (rotation ^ Transform::ROT_180);
+                (rotation ^ hw->getPanelMountFlip());
     }
 
     // set-up our viewport
-- 
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