commit 04c9d8c2ffd028c35c750bac0a4a7b79e48059b5
author Romain Guy <romainguy@google.com> Thu Aug 25 14:01:48 2011 -0700
committer Romain Guy <romainguy@google.com> Thu Aug 25 14:01:48 2011 -0700
tree 5f81921f30f373d4377f470e06193b242b3c8ae4
parent 189887e0ae171c1b7601991442104a30e56c50ab

Optimize display lists

Remove redundant or useless operations

Change-Id: If989b4eaa9143eef4254c38b39959aeed1f2b9ab

libs/hwui/DisplayListRenderer.cpp

diff --git a/libs/hwui/DisplayListRenderer.cpp b/libs/hwui/DisplayListRenderer.cpp
index 88cfc5a..cedf456 100644
--- a/libs/hwui/DisplayListRenderer.cpp
+++ b/libs/hwui/DisplayListRenderer.cpp
@@ -194,6 +194,7 @@
 
 void DisplayList::init() {
     mSize = 0;
+    mIsRenderable = true;
 }
 
 size_t DisplayList::getSize() {
@@ -892,7 +893,7 @@
 // Base structure
 ///////////////////////////////////////////////////////////////////////////////
 
-DisplayListRenderer::DisplayListRenderer(): mWriter(MIN_WRITER_SIZE) {
+DisplayListRenderer::DisplayListRenderer(): mWriter(MIN_WRITER_SIZE), mHasDrawOps(false) {
 }
 
 DisplayListRenderer::~DisplayListRenderer() {
@@ -926,6 +927,8 @@
     mPathMap.clear();
 
     mMatrices.clear();
+
+    mHasDrawOps = false;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -938,6 +941,7 @@
     } else {
         displayList->initFromDisplayListRenderer(*this, true);
     }
+    displayList->setRenderable(mHasDrawOps);
     return displayList;
 }
 
@@ -982,7 +986,11 @@
 }
 
 void DisplayListRenderer::restore() {
-    addOp(DisplayList::Restore);
+    if (mRestoreSaveCount < 0) {
+        addOp(DisplayList::Restore);
+    } else {
+        mRestoreSaveCount--;
+    }
     OpenGLRenderer::restore();
 }