Cache VectorDrawables in an atlas

Optimize VectorDrawables for Skia pipeline: draw small VectorDrawables
in a GPU atlas instead of seprate offscreen buffers.
This implementation is using CacheManger and allows for the atlas to
be released if there is a memory pressure.

Test: A new unit test for VectorDrawableAtlas is passing. Systrace shows
0.5ms faster DrawFrame for fling in Settings app main screen.
Change-Id: Ide3884eefae777e1547f1dfdb67b807185839fb4

1 files changed, 14 insertions, 0 deletions

diff --git a/libs/hwui/renderthread/RenderProxy.cpp b/libs/hwui/renderthread/RenderProxy.cpp
index 370cf525fa58..7fe966dde316 100644
--- a/libs/hwui/renderthread/RenderProxy.cpp
+++ b/libs/hwui/renderthread/RenderProxy.cpp
@@ -21,6 +21,7 @@
 #include "Properties.h"
 #include "Readback.h"
 #include "Rect.h"
+#include "pipeline/skia/VectorDrawableAtlas.h"
 #include "renderthread/CanvasContext.h"
 #include "renderthread/EglManager.h"
 #include "renderthread/RenderTask.h"
@@ -718,6 +719,19 @@ void RenderProxy::post(RenderTask* task) {
     mRenderThread.queue(task);
 }
 
+CREATE_BRIDGE1(repackVectorDrawableAtlas, RenderThread* thread) {
+    args->thread->cacheManager().acquireVectorDrawableAtlas()->repackIfNeeded(
+            args->thread->getGrContext());
+    return nullptr;
+}
+
+void RenderProxy::repackVectorDrawableAtlas() {
+    RenderThread& thread = RenderThread::getInstance();
+    SETUP_TASK(repackVectorDrawableAtlas);
+    args->thread = &thread;
+    thread.queue(task);
+}
+
 void* RenderProxy::postAndWait(MethodInvokeRenderTask* task) {
     void* retval;
     task->setReturnPtr(&retval);