am bc8a8e8c: Merge "Add support for partial invalidates in WebView Bug #3461349" into honeycomb-mr1

* commit 'bc8a8e8c926115cb7b3910d016e5cff12b0f7b0a':
  Add support for partial invalidates in WebView Bug #3461349

5 files changed, 32 insertions, 15 deletions

diff --git a/core/java/android/view/GLES20Canvas.java b/core/java/android/view/GLES20Canvas.java
index 9a6a274..fa5479b 100644
--- a/core/java/android/view/GLES20Canvas.java
+++ b/core/java/android/view/GLES20Canvas.java
@@ -245,11 +245,12 @@ class GLES20Canvas extends HardwareCanvas {
     private static native void nDestroyDisplayList(int displayList);
 
     @Override
-    public boolean drawDisplayList(DisplayList displayList) {
-        return nDrawDisplayList(mRenderer, ((GLES20DisplayList) displayList).mNativeDisplayList);
+    public boolean drawDisplayList(DisplayList displayList, Rect dirty) {
+        return nDrawDisplayList(mRenderer,
+                ((GLES20DisplayList) displayList).mNativeDisplayList, dirty);
     }
 
-    private static native boolean nDrawDisplayList(int renderer, int displayList);
+    private static native boolean nDrawDisplayList(int renderer, int displayList, Rect dirty);
 
     ///////////////////////////////////////////////////////////////////////////
     // Hardware layer
diff --git a/core/java/android/view/HardwareCanvas.java b/core/java/android/view/HardwareCanvas.java
index e6fecc8..cb1003a 100644
--- a/core/java/android/view/HardwareCanvas.java
+++ b/core/java/android/view/HardwareCanvas.java
@@ -53,8 +53,13 @@ public abstract class HardwareCanvas extends Canvas {
      * Draws the specified display list onto this canvas.
      * 
      * @param displayList The display list to replay.
+     * @param dirty The dirty region to redraw in the next pass, matters only
+     *        if this method returns true, can be null.
+     * 
+     * @return True if the content of the display list requires another
+     *         drawing pass (invalidate()), false otherwise
      */
-    abstract boolean drawDisplayList(DisplayList displayList);
+    abstract boolean drawDisplayList(DisplayList displayList, Rect dirty);
 
     /**
      * Draws the specified layer onto this canvas.
diff --git a/core/java/android/view/HardwareRenderer.java b/core/java/android/view/HardwareRenderer.java
index b53aa21..c078c08 100644
--- a/core/java/android/view/HardwareRenderer.java
+++ b/core/java/android/view/HardwareRenderer.java
@@ -269,7 +269,7 @@ public abstract class HardwareRenderer {
         static EGLDisplay sEglDisplay;
         static EGLConfig sEglConfig;
 
-        private static Thread sEglThread;        
+        private static Thread sEglThread;
 
         EGLSurface mEglSurface;
         
@@ -284,6 +284,8 @@ public abstract class HardwareRenderer {
         final boolean mTranslucent;
 
         private boolean mDestroyed;
+        
+        private final Rect mRedrawClip = new Rect();
 
         GlRenderer(int glVersion, boolean translucent) {
             mGlVersion = glVersion;
@@ -606,8 +608,13 @@ public abstract class HardwareRenderer {
 
                         DisplayList displayList = view.getDisplayList();
                         if (displayList != null) {
-                            if (canvas.drawDisplayList(displayList)) {
-                                view.invalidate();
+                            if (canvas.drawDisplayList(displayList, mRedrawClip)) {
+                                if (mRedrawClip.isEmpty()) {
+                                    view.invalidate();
+                                } else {
+                                    view.getParent().invalidateChild(view, mRedrawClip);
+                                }
+                                mRedrawClip.setEmpty();
                             }
                         } else {
                             // Shouldn't reach here
@@ -646,8 +653,8 @@ public abstract class HardwareRenderer {
         private int checkCurrent() {
             // TODO: Don't check the current context when we have one per UI thread
             // TODO: Use a threadlocal flag to know whether the surface has changed
-            if (sEgl.eglGetCurrentContext() != sEglContext ||
-                    sEgl.eglGetCurrentSurface(EGL10.EGL_DRAW) != mEglSurface) {
+            if (!sEglContext.equals(sEgl.eglGetCurrentContext()) ||
+                    !mEglSurface.equals(sEgl.eglGetCurrentSurface(EGL10.EGL_DRAW))) {
                 if (!sEgl.eglMakeCurrent(sEglDisplay, mEglSurface, mEglSurface, sEglContext)) {
                     fallback(true);
                     Log.e(LOG_TAG, "eglMakeCurrent failed " +
diff --git a/core/java/android/view/ViewGroup.java b/core/java/android/view/ViewGroup.java
index 9f1eef9..6ef680b 100644
--- a/core/java/android/view/ViewGroup.java
+++ b/core/java/android/view/ViewGroup.java
@@ -2585,7 +2585,7 @@ public abstract class ViewGroup extends View implements ViewParent, ViewManager
                     }
                 } else {
                     child.mPrivateFlags &= ~DIRTY_MASK;
-                    ((HardwareCanvas) canvas).drawDisplayList(displayList);
+                    ((HardwareCanvas) canvas).drawDisplayList(displayList, null);
                 }
             }
         } else if (cache != null) {
diff --git a/core/java/android/webkit/WebView.java b/core/java/android/webkit/WebView.java
index f0a3a0f..eb7269b 100644
--- a/core/java/android/webkit/WebView.java
+++ b/core/java/android/webkit/WebView.java
@@ -351,7 +351,8 @@ public class WebView extends AbsoluteLayout
 
     private ZoomManager mZoomManager;
 
-    private Rect mGLRectViewport = new Rect();
+    private final Rect mGLRectViewport = new Rect();
+    private final Rect mViewRectViewport = new Rect();
     private boolean mGLViewportEmpty = false;
 
     /**
@@ -4152,7 +4153,7 @@ public class WebView extends AbsoluteLayout
 
         if (canvas.isHardwareAccelerated()) {
             int functor = nativeGetDrawGLFunction(mGLViewportEmpty ? null : mGLRectViewport,
-                    getScale(), extras);
+                    mGLViewportEmpty ? null : mViewRectViewport, getScale(), extras);
             ((HardwareCanvas) canvas).callDrawGLFunction(functor);
         } else {
             DrawFilter df = null;
@@ -5258,6 +5259,7 @@ public class WebView extends AbsoluteLayout
             // Then need to invert the Y axis, just for GL
             View rootView = getRootView();
             int rootViewHeight = rootView.getHeight();
+            mViewRectViewport.set(mGLRectViewport);
             int savedWebViewBottom = mGLRectViewport.bottom;
             mGLRectViewport.bottom = rootViewHeight - mGLRectViewport.top - getVisibleTitleHeight();
             mGLRectViewport.top = rootViewHeight - savedWebViewBottom;
@@ -5265,7 +5267,8 @@ public class WebView extends AbsoluteLayout
         } else {
             mGLViewportEmpty = true;
         }
-        nativeUpdateDrawGLFunction(mGLViewportEmpty ? null : mGLRectViewport);
+        nativeUpdateDrawGLFunction(mGLViewportEmpty ? null : mGLRectViewport,
+                mGLViewportEmpty ? null : mViewRectViewport);
     }
 
     /**
@@ -8531,8 +8534,9 @@ public class WebView extends AbsoluteLayout
             boolean splitIfNeeded);
     private native void     nativeDumpDisplayTree(String urlOrNull);
     private native boolean  nativeEvaluateLayersAnimations();
-    private native int      nativeGetDrawGLFunction(Rect rect, float scale, int extras);
-    private native void     nativeUpdateDrawGLFunction(Rect rect);
+    private native int      nativeGetDrawGLFunction(Rect rect, Rect viewRect,
+            float scale, int extras);
+    private native void     nativeUpdateDrawGLFunction(Rect rect, Rect viewRect);
     private native boolean  nativeDrawGL(Rect rect, float scale, int extras);
     private native void     nativeExtendSelection(int x, int y);
     private native int      nativeFindAll(String findLower, String findUpper,