commit a2eb34cfbe089deb9a519e9702e17d9dfe26f9e8
author Ian Elliott <ianelliott@google.com> Tue Jul 18 11:05:49 2017 -0600
committer Ian Elliott <ianelliott@google.com> Mon Jul 31 15:34:11 2017 +0000
tree 292e7d3fb3a109268e8e5304b789023b10ecbbbf
parent 8cbab7c3c93c1bc9364a81726f02eeacc4a9356b

Have the Surface class track the buffer age.

Have the Surface class track the buffer age, so that Surface::query()
can return the buffer age without having to use a binder call to
BufferQueueProducer::query().  The idea is for
BufferQueueProducer::dequeueBuffer() to return the value, which the
Surface class will cache for later use by Surface::query().

Bug: b/27903668
Test: Use systrace to no ensure query binder call after dequeueBuffer.
Change-Id: I106a7bd27461d381f0bd84df70d804de56a128ab
(cherry picked from commit d11b044864be525a1646f93106ab496195bb8239)

libs/gui/tests/Malicious.cpp

diff --git a/libs/gui/tests/Malicious.cpp b/libs/gui/tests/Malicious.cpp
index 6bc3ccf..2b9fd5d 100644
--- a/libs/gui/tests/Malicious.cpp
+++ b/libs/gui/tests/Malicious.cpp
@@ -38,8 +38,10 @@
     }
     status_t setAsyncMode(bool async) override { return mProducer->setAsyncMode(async); }
     status_t dequeueBuffer(int* slot, sp<Fence>* fence, uint32_t w, uint32_t h, PixelFormat format,
-                           uint64_t usage, FrameEventHistoryDelta* outTimestamps) override {
-        return mProducer->dequeueBuffer(slot, fence, w, h, format, usage, outTimestamps);
+                           uint64_t usage, uint64_t* outBufferAge,
+                           FrameEventHistoryDelta* outTimestamps) override {
+        return mProducer->dequeueBuffer(slot, fence, w, h, format, usage, outBufferAge,
+                                        outTimestamps);
     }
     status_t detachBuffer(int slot) override { return mProducer->detachBuffer(slot); }
     status_t detachNextBuffer(sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence) override {
@@ -105,10 +107,10 @@
 
     // Override dequeueBuffer, optionally corrupting the returned slot number
     status_t dequeueBuffer(int* buf, sp<Fence>* fence, uint32_t width, uint32_t height,
-                           PixelFormat format, uint64_t usage,
+                           PixelFormat format, uint64_t usage, uint64_t* outBufferAge,
                            FrameEventHistoryDelta* outTimestamps) override {
         EXPECT_EQ(BUFFER_NEEDS_REALLOCATION,
-                  mProducer->dequeueBuffer(buf, fence, width, height, format, usage,
+                  mProducer->dequeueBuffer(buf, fence, width, height, format, usage, outBufferAge,
                                            outTimestamps));
         EXPECT_EQ(mExpectedSlot, *buf);
         if (mMaliciousValue != 0) {