Fix a few issues with NATIVE_WINDOW_TRANSFORM_HINT

- fixed uninitialized variable
- set hint to indentity when transform is too complex
- make sure FrameBufferNativeWindow doesn't fail on needed perform commands

Bug: 4487161
Change-Id: I7cb2b0869b72404732eca7cb2d145ff669e2ed9b

1 files changed, 4 insertions, 0 deletions

diff --git a/services/surfaceflinger/SurfaceTextureLayer.cpp b/services/surfaceflinger/SurfaceTextureLayer.cpp
index 11f61cc..40659d4 100644
--- a/services/surfaceflinger/SurfaceTextureLayer.cpp
+++ b/services/surfaceflinger/SurfaceTextureLayer.cpp
@@ -60,6 +60,10 @@ status_t SurfaceTextureLayer::queueBuffer(int buf, int64_t timestamp,
 
     sp<Layer> layer(mLayer.promote());
     if (layer != NULL) {
+        uint32_t orientation = layer->getOrientation();
+        if (orientation & Transform::ROT_INVALID) {
+            orientation = 0;
+        }
         *outTransform = layer->getOrientation();
     }