Fix PTS handling for buffer replacement

This changes the way that SurfaceFlinger's shadow buffer management
works such that instead of tracking the size of the shadow queue in the
BufferQueue, SF tracks the last frame number it has seen, and passes
that into the acquireBuffer call. BufferQueueConsumer then ensures that
it never returns a buffer newer than that frame number, even if that
means that it must return PRESENT_LATER for an otherwise valid buffer.

Change-Id: I3fcb45f683ed660c3f18a8b85ae1f8a962ba6f0e

1 files changed, 2 insertions, 2 deletions

diff --git a/libs/gui/ConsumerBase.cpp b/libs/gui/ConsumerBase.cpp
index aa9443acfa..072ab44bc4 100644
--- a/libs/gui/ConsumerBase.cpp
+++ b/libs/gui/ConsumerBase.cpp
@@ -211,8 +211,8 @@ void ConsumerBase::dumpLocked(String8& result, const char* prefix) const {
 }
 
 status_t ConsumerBase::acquireBufferLocked(BufferItem *item,
-        nsecs_t presentWhen) {
-    status_t err = mConsumer->acquireBuffer(item, presentWhen);
+        nsecs_t presentWhen, uint64_t maxFrameNumber) {
+    status_t err = mConsumer->acquireBuffer(item, presentWhen, maxFrameNumber);
     if (err != NO_ERROR) {
         return err;
     }