From 1585c4d9fbbba3ba70ae625923b85cd02cb8a0fd Mon Sep 17 00:00:00 2001 From: Andy McFadden Date: Fri, 28 Jun 2013 13:52:40 -0700 Subject: 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 --- libs/gui/GLConsumer.cpp | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'libs/gui/GLConsumer.cpp') diff --git a/libs/gui/GLConsumer.cpp b/libs/gui/GLConsumer.cpp index 6d29edc0c4..d12083fcb2 100644 --- a/libs/gui/GLConsumer.cpp +++ b/libs/gui/GLConsumer.cpp @@ -139,7 +139,7 @@ status_t GLConsumer::updateTexImage() { // Acquire the next buffer. // In asynchronous mode the list is guaranteed to be one buffer // deep, while in synchronous mode we use the oldest buffer. - err = acquireBufferLocked(&item); + err = acquireBufferLocked(&item, 0); if (err != NO_ERROR) { if (err == BufferQueue::NO_BUFFER_AVAILABLE) { // We always bind the texture even if we don't update its contents. @@ -165,8 +165,9 @@ status_t GLConsumer::updateTexImage() { return bindTextureImageLocked(); } -status_t GLConsumer::acquireBufferLocked(BufferQueue::BufferItem *item) { - status_t err = ConsumerBase::acquireBufferLocked(item); +status_t GLConsumer::acquireBufferLocked(BufferQueue::BufferItem *item, + nsecs_t presentWhen) { + status_t err = ConsumerBase::acquireBufferLocked(item, presentWhen); if (err != NO_ERROR) { return err; } -- cgit v1.2.3-59-g8ed1b