Framework code for Attached Choreographer.
Allows a direct association of a Layer (via LayerHistory) to attached
choreographer.
The EventThread checks whether the vsync is in phase for a
choreographer.
Bug: 255838011
Test: atest AttachedChoreographerNativeTest
Change-Id: I9cb35bced5e6d4509609ad7698ab2902a31d5b98
diff --git a/libs/gui/SurfaceControl.cpp b/libs/gui/SurfaceControl.cpp
index 7aee882..c5f9c38 100644
--- a/libs/gui/SurfaceControl.cpp
+++ b/libs/gui/SurfaceControl.cpp
@@ -26,6 +26,7 @@
#include <utils/Errors.h>
#include <utils/KeyedVector.h>
#include <utils/Log.h>
+#include <utils/Looper.h>
#include <utils/threads.h>
#include <binder/IPCThreadState.h>
@@ -34,8 +35,9 @@
#include <ui/Rect.h>
#include <ui/StaticDisplayInfo.h>
-#include <gui/BufferQueueCore.h>
#include <gui/BLASTBufferQueue.h>
+#include <gui/BufferQueueCore.h>
+#include <gui/Choreographer.h>
#include <gui/ISurfaceComposer.h>
#include <gui/Surface.h>
#include <gui/SurfaceComposerClient.h>
@@ -191,6 +193,24 @@
return mName;
}
+std::shared_ptr<Choreographer> SurfaceControl::getChoreographer() {
+ if (mChoreographer) {
+ return mChoreographer;
+ }
+ sp<Looper> looper = Looper::getForThread();
+ if (!looper.get()) {
+ ALOGE("%s: No looper prepared for thread", __func__);
+ return nullptr;
+ }
+ mChoreographer = std::make_shared<Choreographer>(looper, getHandle());
+ status_t result = mChoreographer->initialize();
+ if (result != OK) {
+ ALOGE("Failed to initialize choreographer");
+ mChoreographer = nullptr;
+ }
+ return mChoreographer;
+}
+
sp<IGraphicBufferProducer> SurfaceControl::getIGraphicBufferProducer()
{
getSurface();