commit 1681d95989271f3a9ac0dbb93d10e4a29f2b4444
author Ruben Brunk <rubenbrunk@google.com> Fri Jun 27 15:51:55 2014 -0700
committer Ruben Brunk <rubenbrunk@google.com> Mon Jul 14 22:14:32 2014 +0000
tree 52e23db3604b9b52d3f4d62324f279cb8942de69
parent f3381cf1a645f857dccad9a4369ae23054e9d7d4

Add sticky transform to surfaceflinger.

Bug: 15116722

- Adds a sticky transform field that can be set from a
  SurfaceFlinger client Surface.  This transform is
  added to any transform applied to the Surface.

Change-Id: Idaa4311dfd027b2d2b8ea5e2c6cba2da5779d753

libs/gui/BufferQueueProducer.cpp

diff --git a/libs/gui/BufferQueueProducer.cpp b/libs/gui/BufferQueueProducer.cpp
index 70c3ff3..6feebf7 100644
--- a/libs/gui/BufferQueueProducer.cpp
+++ b/libs/gui/BufferQueueProducer.cpp
@@ -37,7 +37,8 @@
 BufferQueueProducer::BufferQueueProducer(const sp<BufferQueueCore>& core) :
     mCore(core),
     mSlots(core->mSlots),
-    mConsumerName() {}
+    mConsumerName(),
+    mStickyTransform(0) {}
 
 BufferQueueProducer::~BufferQueueProducer() {}
 
@@ -509,10 +510,11 @@
     Rect crop;
     int scalingMode;
     uint32_t transform;
+    uint32_t stickyTransform;
     bool async;
     sp<Fence> fence;
     input.deflate(&timestamp, &isAutoTimestamp, &crop, &scalingMode, &transform,
-            &async, &fence);
+            &async, &fence, &stickyTransform);
 
     if (fence == NULL) {
         BQ_LOGE("queueBuffer: fence is NULL");
@@ -601,6 +603,8 @@
         item.mFence = fence;
         item.mIsDroppable = mCore->mDequeueBufferCannotBlock || async;
 
+        mStickyTransform = stickyTransform;
+
         if (mCore->mQueue.empty()) {
             // When the queue is empty, we can ignore mDequeueBufferCannotBlock
             // and simply queue this buffer
@@ -701,6 +705,9 @@
         case NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS:
             value = mCore->getMinUndequeuedBufferCountLocked(false);
             break;
+        case NATIVE_WINDOW_STICKY_TRANSFORM:
+            value = static_cast<int>(mStickyTransform);
+            break;
         case NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND:
             value = (mCore->mQueue.size() > 1);
             break;