commit b565df13a9e5c7b1d7d93bdfa4a793752d66d3cc
author Chris Craik <ccraik@google.com> Mon Oct 05 13:00:52 2015 -0700
committer Chris Craik <ccraik@google.com> Wed Oct 14 16:10:40 2015 -0700
tree 4a2dadd3b2c95663c23a626eff75962a0b8d4ce2
parent b08949151f8dfc7a72ea6696f2e6067c2b1643bb

Initial commit of new Canvas operation recording / replay

Done:
- drawRect, drawBitmap, drawColor, drawPaint, drawRenderNode, drawRegion
- Recording with new DisplayList format
- batching & reordering
- Stateless op reorder
- Stateless op rendering
- Frame lifecycle (clear, geterror, cleanup)

Not done:
- SaveLayer (clipped and unclipped)
- HW layers
- Complex clipping
- Ripple projection
- Z reordering
- Z shadows
- onDefer prefetching (text + task kickoff)
- round rect clip
- linear allocation for std collections
- AssetAtlas support

Change-Id: Iaf98c1a3aeab5fa47cc8f9c6d964420abc0e7691

libs/hwui/RenderNode.h

diff --git a/libs/hwui/RenderNode.h b/libs/hwui/RenderNode.h
index 88fc608..ff673ba 100644
--- a/libs/hwui/RenderNode.h
+++ b/libs/hwui/RenderNode.h
@@ -29,8 +29,8 @@
 
 #include "AnimatorManager.h"
 #include "Debug.h"
-#include "Matrix.h"
 #include "DisplayList.h"
+#include "Matrix.h"
 #include "RenderProperties.h"
 
 #include <vector>
@@ -43,6 +43,7 @@
 namespace android {
 namespace uirenderer {
 
+class CanvasState;
 class DisplayListOp;
 class DisplayListCanvas;
 class OpenGLRenderer;
@@ -74,6 +75,7 @@
  * attached.
  */
 class RenderNode : public VirtualLightRefBase {
+friend class TestUtils; // allow TestUtils to access syncDisplayList / syncProperties
 public:
     enum DirtyPropertyMask {
         GENERIC         = 1 << 1,
@@ -176,8 +178,25 @@
 
     AnimatorManager& animators() { return mAnimatorManager; }
 
+    // Returns false if the properties dictate the subtree contained in this RenderNode won't render
+    bool applyViewProperties(CanvasState& canvasState) const;
+
     void applyViewPropertyTransforms(mat4& matrix, bool true3dTransform = false) const;
 
+    bool nothingToDraw() const {
+        const Outline& outline = properties().getOutline();
+        return mDisplayListData == nullptr
+                || properties().getAlpha() <= 0
+                || (outline.getShouldClip() && outline.isEmpty())
+                || properties().getScaleX() == 0
+                || properties().getScaleY() == 0;
+    }
+
+    // Only call if RenderNode has DisplayListData...
+    const DisplayListData& getDisplayListData() const {
+        return *mDisplayListData;
+    }
+
 private:
     typedef key_value_pair_t<float, DrawRenderNodeOp*> ZDrawRenderNodeOpPair;
 
@@ -235,6 +254,10 @@
         const char* mText;
     };
 
+
+    void syncProperties();
+    void syncDisplayList();
+
     void prepareTreeImpl(TreeInfo& info, bool functorsNeedLayer);
     void pushStagingPropertiesChanges(TreeInfo& info);
     void pushStagingDisplayListChanges(TreeInfo& info);