surfaceflinger: odd hw rotation (90/270) patch for swapping width/height

This patch works in addition to the following commit
re-implementing ro.sf.hwrotation:
https://github.com/CyanogenMod/android_frameworks_native/commit/7d283431efffc4402cb1a6cacf5da64729c883bb

When using values of 90 and 270 for ro.sf.hwrotation the
LCD width and height also need to be swapped to display properly.

Change-Id: I2874fdb8f8d8b855df6d62d338c9a22360491973
NOTE: This patch does not fix the initial startup of bootanimation

1 files changed, 15 insertions, 4 deletions

diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index cea463a..429231c 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -641,10 +641,21 @@ status_t SurfaceFlinger::getDisplayConfigs(const sp<IBinder>& display,
             info.orientation = 0;
         }
 
-        info.w = hwConfig.width;
-        info.h = hwConfig.height;
-        info.xdpi = xdpi;
-        info.ydpi = ydpi;
+        char value[PROPERTY_VALUE_MAX];
+        property_get("ro.sf.hwrotation", value, "0");
+        int additionalRot = atoi(value) / 90;
+        if ((type == DisplayDevice::DISPLAY_PRIMARY) && (additionalRot & DisplayState::eOrientationSwapMask)) {
+            info.h = hwConfig.width;
+            info.w = hwConfig.height;
+            info.xdpi = ydpi;
+            info.ydpi = xdpi;
+        }
+        else {
+            info.w = hwConfig.width;
+            info.h = hwConfig.height;
+            info.xdpi = xdpi;
+            info.ydpi = ydpi;
+        }
         info.fps = float(1e9 / hwConfig.refresh);
         info.appVsyncOffset = VSYNC_EVENT_PHASE_OFFSET_NS;
         info.colorTransform = hwConfig.colorTransform;