Pay attention to buffer timestamps
When acquiring a buffer, SurfaceFlinger now computes the expected
presentation time and passes it to the BufferQueue acquireBuffer()
method. If it's not yet time to display the buffer, acquireBuffer()
returns PRESENT_LATER instead of a buffer.
The current implementation of the expected-present-time computation
uses approximations and guesswork.
Bug 7900302
Change-Id: If9345611c5983a11a811935aaf27d6388a5036f1
diff --git a/libs/gui/ConsumerBase.cpp b/libs/gui/ConsumerBase.cpp
index fd9d153..deb2646 100644
--- a/libs/gui/ConsumerBase.cpp
+++ b/libs/gui/ConsumerBase.cpp
@@ -182,8 +182,9 @@
}
}
-status_t ConsumerBase::acquireBufferLocked(BufferQueue::BufferItem *item) {
- status_t err = mBufferQueue->acquireBuffer(item);
+status_t ConsumerBase::acquireBufferLocked(BufferQueue::BufferItem *item,
+ nsecs_t presentWhen) {
+ status_t err = mBufferQueue->acquireBuffer(item, presentWhen);
if (err != NO_ERROR) {
return err;
}