Serializing display lists

This is a WIP prototype

Change-Id: Id4bfcf2b7bf905221c3734b7b6887c9b2efd37e6
diff --git a/libs/hwui/RenderNode.cpp b/libs/hwui/RenderNode.cpp
index 7d09c0b..ddc7ecd 100644
--- a/libs/hwui/RenderNode.cpp
+++ b/libs/hwui/RenderNode.cpp
@@ -33,6 +33,9 @@
 #include "utils/TraceUtils.h"
 #include "renderthread/CanvasContext.h"
 
+#include "protos/hwui.pb.h"
+#include "protos/ProtoHelpers.h"
+
 namespace android {
 namespace uirenderer {
 
@@ -102,6 +105,78 @@
     ALOGD("%*sDone (%p, %s)", (level - 1) * 2, "", this, getName());
 }
 
+void RenderNode::copyTo(proto::RenderNode *pnode) {
+    pnode->set_id(static_cast<uint64_t>(
+            reinterpret_cast<uintptr_t>(this)));
+    pnode->set_name(mName.string(), mName.length());
+
+    proto::RenderProperties* pprops = pnode->mutable_properties();
+    pprops->set_left(properties().getLeft());
+    pprops->set_top(properties().getTop());
+    pprops->set_right(properties().getRight());
+    pprops->set_bottom(properties().getBottom());
+    pprops->set_clip_flags(properties().getClippingFlags());
+    pprops->set_alpha(properties().getAlpha());
+    pprops->set_translation_x(properties().getTranslationX());
+    pprops->set_translation_y(properties().getTranslationY());
+    pprops->set_translation_z(properties().getTranslationZ());
+    pprops->set_elevation(properties().getElevation());
+    pprops->set_rotation(properties().getRotation());
+    pprops->set_rotation_x(properties().getRotationX());
+    pprops->set_rotation_y(properties().getRotationY());
+    pprops->set_scale_x(properties().getScaleX());
+    pprops->set_scale_y(properties().getScaleY());
+    pprops->set_pivot_x(properties().getPivotX());
+    pprops->set_pivot_y(properties().getPivotY());
+    pprops->set_has_overlapping_rendering(properties().getHasOverlappingRendering());
+    pprops->set_pivot_explicitly_set(properties().isPivotExplicitlySet());
+    pprops->set_project_backwards(properties().getProjectBackwards());
+    pprops->set_projection_receiver(properties().isProjectionReceiver());
+    set(pprops->mutable_clip_bounds(), properties().getClipBounds());
+
+    const Outline& outline = properties().getOutline();
+    if (outline.getType() != Outline::Type::None) {
+        proto::Outline* poutline = pprops->mutable_outline();
+        poutline->clear_path();
+        if (outline.getType() == Outline::Type::Empty) {
+            poutline->set_type(proto::Outline_Type_Empty);
+        } else if (outline.getType() == Outline::Type::ConvexPath) {
+            poutline->set_type(proto::Outline_Type_ConvexPath);
+            if (const SkPath* path = outline.getPath()) {
+                set(poutline->mutable_path(), *path);
+            }
+        } else if (outline.getType() == Outline::Type::RoundRect) {
+            poutline->set_type(proto::Outline_Type_RoundRect);
+        } else {
+            ALOGW("Uknown outline type! %d", static_cast<int>(outline.getType()));
+            poutline->set_type(proto::Outline_Type_None);
+        }
+        poutline->set_should_clip(outline.getShouldClip());
+        poutline->set_alpha(outline.getAlpha());
+        poutline->set_radius(outline.getRadius());
+        set(poutline->mutable_bounds(), outline.getBounds());
+    } else {
+        pprops->clear_outline();
+    }
+
+    const RevealClip& revealClip = properties().getRevealClip();
+    if (revealClip.willClip()) {
+        proto::RevealClip* prevealClip = pprops->mutable_reveal_clip();
+        prevealClip->set_x(revealClip.getX());
+        prevealClip->set_y(revealClip.getY());
+        prevealClip->set_radius(revealClip.getRadius());
+    } else {
+        pprops->clear_reveal_clip();
+    }
+
+    pnode->clear_children();
+    if (mDisplayListData) {
+        for (auto&& child : mDisplayListData->children()) {
+            child->mRenderNode->copyTo(pnode->add_children());
+        }
+    }
+}
+
 int RenderNode::getDebugSize() {
     int size = sizeof(RenderNode);
     if (mStagingDisplayListData) {