mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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576 lines
23 KiB
Java
576 lines
23 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Android code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2009-2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Patrick Walton <pcwalton@mozilla.com>
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* Chris Lord <chrislord.net@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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package org.mozilla.gecko.gfx;
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import org.mozilla.gecko.gfx.CairoImage;
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import org.mozilla.gecko.gfx.IntSize;
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import org.mozilla.gecko.gfx.LayerClient;
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import org.mozilla.gecko.gfx.LayerController;
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import org.mozilla.gecko.gfx.LayerRenderer;
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import org.mozilla.gecko.gfx.MultiTileLayer;
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import org.mozilla.gecko.gfx.PointUtils;
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import org.mozilla.gecko.gfx.WidgetTileLayer;
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import org.mozilla.gecko.FloatUtils;
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import org.mozilla.gecko.GeckoApp;
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import org.mozilla.gecko.GeckoAppShell;
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import org.mozilla.gecko.GeckoEvent;
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import org.mozilla.gecko.GeckoEventListener;
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import android.content.Context;
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import android.graphics.Bitmap;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Point;
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import android.graphics.PointF;
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import android.graphics.Rect;
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import android.graphics.RectF;
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import android.os.SystemClock;
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import android.util.DisplayMetrics;
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import android.util.Log;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.nio.ByteBuffer;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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/**
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* Transfers a software-rendered Gecko to an ImageLayer so that it can be rendered by our
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* compositor.
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*
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* TODO: Throttle down Gecko's priority when we pan and zoom.
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*/
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public class GeckoSoftwareLayerClient extends LayerClient implements GeckoEventListener {
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private static final String LOGTAG = "GeckoSoftwareLayerClient";
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private Context mContext;
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private int mFormat;
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private IntSize mScreenSize, mViewportSize;
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private IntSize mBufferSize;
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private ByteBuffer mBuffer;
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private Layer mTileLayer;
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/* The viewport that Gecko is currently displaying. */
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private ViewportMetrics mGeckoViewport;
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/* The viewport that Gecko will display when drawing is finished */
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private ViewportMetrics mNewGeckoViewport;
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private CairoImage mCairoImage;
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private static final IntSize TILE_SIZE = new IntSize(256, 256);
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private static final long MIN_VIEWPORT_CHANGE_DELAY = 350L;
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private long mLastViewportChangeTime;
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private boolean mPendingViewportAdjust;
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private boolean mViewportSizeChanged;
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// Whether or not the last paint we got used direct texturing
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private boolean mHasDirectTexture;
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// mUpdateViewportOnEndDraw is used to indicate that we received a
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// viewport update notification while drawing. therefore, when the
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// draw finishes, we need to update the entire viewport rather than
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// just the page size. this boolean should always be accessed from
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// inside a transaction, so no synchronization is needed.
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private boolean mUpdateViewportOnEndDraw;
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/* Used by robocop for testing purposes */
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private DrawListener mDrawListener;
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private static Pattern sColorPattern;
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public GeckoSoftwareLayerClient(Context context) {
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mContext = context;
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mScreenSize = new IntSize(0, 0);
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mBufferSize = new IntSize(0, 0);
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mFormat = CairoImage.FORMAT_RGB16_565;
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mCairoImage = new CairoImage() {
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@Override
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public ByteBuffer getBuffer() { return mBuffer; }
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@Override
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public IntSize getSize() { return mBufferSize; }
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@Override
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public int getFormat() { return mFormat; }
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};
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}
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public int getWidth() {
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return mBufferSize.width;
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}
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public int getHeight() {
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return mBufferSize.height;
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}
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protected void finalize() throws Throwable {
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try {
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if (mBuffer != null)
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GeckoAppShell.freeDirectBuffer(mBuffer);
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mBuffer = null;
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} finally {
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super.finalize();
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}
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}
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/** Attaches the root layer to the layer controller so that Gecko appears. */
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@Override
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public void setLayerController(LayerController layerController) {
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super.setLayerController(layerController);
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layerController.setRoot(mTileLayer);
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if (mGeckoViewport != null) {
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layerController.setViewportMetrics(mGeckoViewport);
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}
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GeckoAppShell.registerGeckoEventListener("Viewport:UpdateAndDraw", this);
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GeckoAppShell.registerGeckoEventListener("Viewport:UpdateLater", this);
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GeckoAppShell.registerGeckoEventListener("Checkerboard:Toggle", this);
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sendResizeEventIfNecessary();
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}
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private boolean setHasDirectTexture(boolean hasDirectTexture) {
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if (mTileLayer != null && hasDirectTexture == mHasDirectTexture)
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return false;
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mHasDirectTexture = hasDirectTexture;
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if (mHasDirectTexture) {
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Log.i(LOGTAG, "Creating WidgetTileLayer");
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mTileLayer = new WidgetTileLayer(mCairoImage);
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} else {
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Log.i(LOGTAG, "Creating MultiTileLayer");
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mTileLayer = new MultiTileLayer(mCairoImage, TILE_SIZE);
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}
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getLayerController().setRoot(mTileLayer);
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// Force a resize event to be sent because the results of this
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// are different depending on what tile system we're using
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sendResizeEventIfNecessary(true);
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return true;
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}
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public Rect beginDrawing(int width, int height, int tileWidth, int tileHeight,
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String metadata, boolean hasDirectTexture) {
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setHasDirectTexture(hasDirectTexture);
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// Make sure the tile-size matches. If it doesn't, we could crash trying
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// to access invalid memory.
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if (mHasDirectTexture) {
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if (tileWidth != 0 || tileHeight != 0) {
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Log.e(LOGTAG, "Aborting draw, incorrect tile size of " + tileWidth + "x" + tileHeight);
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return null;
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}
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} else {
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if (tileWidth != TILE_SIZE.width || tileHeight != TILE_SIZE.height) {
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Log.e(LOGTAG, "Aborting draw, incorrect tile size of " + tileWidth + "x" + tileHeight);
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return null;
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}
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}
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LayerController controller = getLayerController();
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try {
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JSONObject viewportObject = new JSONObject(metadata);
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mNewGeckoViewport = new ViewportMetrics(viewportObject);
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// Update the background color, if it's present.
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String backgroundColorString = viewportObject.optString("backgroundColor");
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if (backgroundColorString != null) {
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controller.setCheckerboardColor(parseColorFromGecko(backgroundColorString));
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}
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} catch (JSONException e) {
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Log.e(LOGTAG, "Aborting draw, bad viewport description: " + metadata);
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return null;
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}
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// Make sure we don't spend time painting areas we aren't interested in.
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// Only do this if the Gecko viewport isn't going to override our viewport.
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Rect bufferRect = new Rect(0, 0, width, height);
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if (!mUpdateViewportOnEndDraw) {
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// First, find out our ideal displayport. We do this by taking the
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// clamped viewport origin and taking away the optimum viewport offset.
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// This would be what we would send to Gecko if adjustViewport were
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// called now.
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ViewportMetrics currentMetrics = controller.getViewportMetrics();
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PointF currentBestOrigin = RectUtils.getOrigin(currentMetrics.getClampedViewport());
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PointF viewportOffset = currentMetrics.getOptimumViewportOffset(new IntSize(width, height));
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currentBestOrigin.offset(-viewportOffset.x, -viewportOffset.y);
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Rect currentRect = RectUtils.round(new RectF(currentBestOrigin.x, currentBestOrigin.y,
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currentBestOrigin.x + width, currentBestOrigin.y + height));
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// Second, store Gecko's displayport.
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PointF currentOrigin = mNewGeckoViewport.getDisplayportOrigin();
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bufferRect = RectUtils.round(new RectF(currentOrigin.x, currentOrigin.y,
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currentOrigin.x + width, currentOrigin.y + height));
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// Take the intersection of the two as the area we're interested in rendering.
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if (!bufferRect.intersect(currentRect)) {
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// If there's no intersection, we have no need to render anything,
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// but make sure to update the viewport size.
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beginTransaction(mTileLayer);
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try {
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updateViewport(true);
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} finally {
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endTransaction(mTileLayer);
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}
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return null;
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}
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bufferRect.offset(Math.round(-currentOrigin.x), Math.round(-currentOrigin.y));
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}
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beginTransaction(mTileLayer);
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// Synchronise the buffer size with Gecko.
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if (mBufferSize.width != width || mBufferSize.height != height) {
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mBufferSize = new IntSize(width, height);
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// Reallocate the buffer if necessary
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if (mTileLayer instanceof MultiTileLayer) {
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int bpp = CairoUtils.bitsPerPixelForCairoFormat(mFormat) / 8;
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int size = mBufferSize.getArea() * bpp;
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if (mBuffer == null || mBuffer.capacity() != size) {
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// Free the old buffer
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if (mBuffer != null) {
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GeckoAppShell.freeDirectBuffer(mBuffer);
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mBuffer = null;
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}
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mBuffer = GeckoAppShell.allocateDirectBuffer(size);
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}
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}
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}
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return bufferRect;
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}
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private void updateViewport(final boolean onlyUpdatePageSize) {
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// save and restore the viewport size stored in java; never let the
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// JS-side viewport dimensions override the java-side ones because
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// java is the One True Source of this information, and allowing JS
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// to override can lead to race conditions where this data gets clobbered.
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FloatSize viewportSize = getLayerController().getViewportSize();
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mGeckoViewport = mNewGeckoViewport;
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mGeckoViewport.setSize(viewportSize);
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LayerController controller = getLayerController();
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PointF displayportOrigin = mGeckoViewport.getDisplayportOrigin();
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mTileLayer.setOrigin(PointUtils.round(displayportOrigin));
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mTileLayer.setResolution(mGeckoViewport.getZoomFactor());
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if (onlyUpdatePageSize) {
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// Don't adjust page size when zooming unless zoom levels are
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// approximately equal.
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if (FloatUtils.fuzzyEquals(controller.getZoomFactor(),
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mGeckoViewport.getZoomFactor()))
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controller.setPageSize(mGeckoViewport.getPageSize());
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} else {
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controller.setViewportMetrics(mGeckoViewport);
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controller.abortPanZoomAnimation();
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}
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}
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/*
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* TODO: Would be cleaner if this took an android.graphics.Rect instead, but that would require
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* a little more JNI magic.
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*/
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public void endDrawing(int x, int y, int width, int height) {
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synchronized (getLayerController()) {
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try {
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updateViewport(!mUpdateViewportOnEndDraw);
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mUpdateViewportOnEndDraw = false;
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if (mTileLayer instanceof MultiTileLayer) {
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Rect rect = new Rect(x, y, x + width, y + height);
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((MultiTileLayer)mTileLayer).invalidate(rect);
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}
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} finally {
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endTransaction(mTileLayer);
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}
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}
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Log.i(LOGTAG, "zerdatime " + SystemClock.uptimeMillis() + " - endDrawing");
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/* Used by robocop for testing purposes */
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if (mDrawListener != null) {
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mDrawListener.drawFinished(x, y, width, height);
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}
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}
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public ViewportMetrics getGeckoViewportMetrics() {
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// Return a copy, as we modify this inside the Gecko thread
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if (mGeckoViewport != null)
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return new ViewportMetrics(mGeckoViewport);
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return null;
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}
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public void copyPixelsFromMultiTileLayer(Bitmap target) {
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Canvas c = new Canvas(target);
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ByteBuffer tileBuffer = mBuffer.slice();
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int bpp = CairoUtils.bitsPerPixelForCairoFormat(mFormat) / 8;
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for (int y = 0; y < mBufferSize.height; y += TILE_SIZE.height) {
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for (int x = 0; x < mBufferSize.width; x += TILE_SIZE.width) {
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// Calculate tile size
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IntSize tileSize = new IntSize(Math.min(mBufferSize.width - x, TILE_SIZE.width),
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Math.min(mBufferSize.height - y, TILE_SIZE.height));
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// Create a Bitmap from this tile
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Bitmap tile = Bitmap.createBitmap(tileSize.width, tileSize.height,
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CairoUtils.cairoFormatTobitmapConfig(mFormat));
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tile.copyPixelsFromBuffer(tileBuffer.asIntBuffer());
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// Copy the tile to the master Bitmap and recycle it
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c.drawBitmap(tile, x, y, null);
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tile.recycle();
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// Progress the buffer to the next tile
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tileBuffer.position(tileSize.getArea() * bpp);
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tileBuffer = tileBuffer.slice();
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}
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}
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}
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public Bitmap getBitmap() {
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if (mTileLayer == null)
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return null;
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// Begin a tile transaction, otherwise the buffer can be destroyed while
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// we're reading from it.
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beginTransaction(mTileLayer);
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try {
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if (mBuffer == null || mBufferSize.width <= 0 || mBufferSize.height <= 0)
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return null;
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try {
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Bitmap b = null;
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if (mTileLayer instanceof MultiTileLayer) {
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b = Bitmap.createBitmap(mBufferSize.width, mBufferSize.height,
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CairoUtils.cairoFormatTobitmapConfig(mFormat));
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copyPixelsFromMultiTileLayer(b);
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} else {
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Log.w(LOGTAG, "getBitmap() called on a layer (" + mTileLayer + ") we don't know how to get a bitmap from");
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}
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return b;
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} catch (OutOfMemoryError oom) {
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Log.w(LOGTAG, "Unable to create bitmap", oom);
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return null;
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}
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} finally {
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endTransaction(mTileLayer);
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}
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}
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/** Returns the back buffer. This function is for Gecko to use. */
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public ByteBuffer lockBuffer() {
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return mBuffer;
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}
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/**
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* Gecko calls this function to signal that it is done with the back buffer. After this call,
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* it is forbidden for Gecko to touch the buffer.
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*/
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public void unlockBuffer() {
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/* no-op */
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}
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@Override
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public void geometryChanged() {
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/* Let Gecko know if the screensize has changed */
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sendResizeEventIfNecessary();
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render();
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}
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private void sendResizeEventIfNecessary() {
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sendResizeEventIfNecessary(false);
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}
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/* Informs Gecko that the screen size has changed. */
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private void sendResizeEventIfNecessary(boolean force) {
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DisplayMetrics metrics = new DisplayMetrics();
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GeckoApp.mAppContext.getWindowManager().getDefaultDisplay().getMetrics(metrics);
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// Return immediately if the screen size hasn't changed or the viewport
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// size is zero (which indicates that the rendering surface hasn't been
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// allocated yet).
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boolean screenSizeChanged = (metrics.widthPixels != mScreenSize.width ||
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metrics.heightPixels != mScreenSize.height);
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boolean viewportSizeValid = (getLayerController() != null &&
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getLayerController().getViewportSize().isPositive());
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if (!(force || (screenSizeChanged && viewportSizeValid))) {
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return;
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}
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mScreenSize = new IntSize(metrics.widthPixels, metrics.heightPixels);
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IntSize bufferSize;
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IntSize tileSize;
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// Round up depending on layer implementation to remove texture wastage
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if (!mHasDirectTexture) {
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// Round to the next multiple of the tile size
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bufferSize = new IntSize(((mScreenSize.width + LayerController.MIN_BUFFER.width - 1) / TILE_SIZE.width + 1) * TILE_SIZE.width,
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((mScreenSize.height + LayerController.MIN_BUFFER.height - 1) / TILE_SIZE.height + 1) * TILE_SIZE.height);
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tileSize = TILE_SIZE;
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} else {
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int maxSize = getLayerController().getView().getMaxTextureSize();
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// XXX Integrate gralloc/tiling work to circumvent this
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if (mScreenSize.width > maxSize || mScreenSize.height > maxSize)
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throw new RuntimeException("Screen size of " + mScreenSize + " larger than maximum texture size of " + maxSize);
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// Round to next power of two until we have NPOT texture support, respecting maximum texture size
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bufferSize = new IntSize(Math.min(maxSize, IntSize.nextPowerOfTwo(mScreenSize.width + LayerController.MIN_BUFFER.width)),
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Math.min(maxSize, IntSize.nextPowerOfTwo(mScreenSize.height + LayerController.MIN_BUFFER.height)));
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tileSize = new IntSize(0, 0);
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}
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Log.i(LOGTAG, "Screen-size changed to " + mScreenSize);
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GeckoEvent event = GeckoEvent.createSizeChangedEvent(
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bufferSize.width, bufferSize.height, metrics.widthPixels,
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metrics.heightPixels, tileSize.width, tileSize.height);
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GeckoAppShell.sendEventToGecko(event);
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}
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@Override
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public void viewportSizeChanged() {
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mViewportSizeChanged = true;
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}
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@Override
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public void render() {
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adjustViewportWithThrottling();
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}
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private void adjustViewportWithThrottling() {
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if (!getLayerController().getRedrawHint())
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return;
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if (mPendingViewportAdjust)
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return;
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long timeDelta = System.currentTimeMillis() - mLastViewportChangeTime;
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if (timeDelta < MIN_VIEWPORT_CHANGE_DELAY) {
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getLayerController().getView().postDelayed(
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new Runnable() {
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public void run() {
|
|
mPendingViewportAdjust = false;
|
|
adjustViewport();
|
|
}
|
|
}, MIN_VIEWPORT_CHANGE_DELAY - timeDelta);
|
|
mPendingViewportAdjust = true;
|
|
return;
|
|
}
|
|
|
|
adjustViewport();
|
|
}
|
|
|
|
private void adjustViewport() {
|
|
ViewportMetrics viewportMetrics =
|
|
new ViewportMetrics(getLayerController().getViewportMetrics());
|
|
|
|
PointF viewportOffset = viewportMetrics.getOptimumViewportOffset(mBufferSize);
|
|
viewportMetrics.setViewportOffset(viewportOffset);
|
|
viewportMetrics.setViewport(viewportMetrics.getClampedViewport());
|
|
|
|
GeckoAppShell.sendEventToGecko(GeckoEvent.createViewportEvent(viewportMetrics));
|
|
if (mViewportSizeChanged) {
|
|
mViewportSizeChanged = false;
|
|
GeckoAppShell.viewSizeChanged();
|
|
}
|
|
|
|
mLastViewportChangeTime = System.currentTimeMillis();
|
|
}
|
|
|
|
public void handleMessage(String event, JSONObject message) {
|
|
if ("Viewport:UpdateAndDraw".equals(event)) {
|
|
mUpdateViewportOnEndDraw = true;
|
|
|
|
// Redraw everything.
|
|
Rect rect = new Rect(0, 0, mBufferSize.width, mBufferSize.height);
|
|
GeckoAppShell.sendEventToGecko(GeckoEvent.createDrawEvent(rect));
|
|
} else if ("Viewport:UpdateLater".equals(event)) {
|
|
mUpdateViewportOnEndDraw = true;
|
|
} else if ("Checkerboard:Toggle".equals(event)) {
|
|
try {
|
|
boolean showChecks = message.getBoolean("value");
|
|
LayerController controller = getLayerController();
|
|
controller.setCheckerboardShowChecks(showChecks);
|
|
Log.i(LOGTAG, "Showing checks: " + showChecks);
|
|
} catch(JSONException ex) {
|
|
Log.e(LOGTAG, "Error decoding JSON", ex);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Parses a color from an RGB triple of the form "rgb([0-9]+, [0-9]+, [0-9]+)". If the color
|
|
// cannot be parsed, returns white.
|
|
private static int parseColorFromGecko(String string) {
|
|
if (sColorPattern == null) {
|
|
sColorPattern = Pattern.compile("rgb\\((\\d+),\\s*(\\d+),\\s*(\\d+)\\)");
|
|
}
|
|
|
|
Matcher matcher = sColorPattern.matcher(string);
|
|
if (!matcher.matches()) {
|
|
return Color.WHITE;
|
|
}
|
|
|
|
int r = Integer.parseInt(matcher.group(1));
|
|
int g = Integer.parseInt(matcher.group(2));
|
|
int b = Integer.parseInt(matcher.group(3));
|
|
return Color.rgb(r, g, b);
|
|
}
|
|
|
|
/** Used by robocop for testing purposes. Not for production use! This is called via reflection by robocop. */
|
|
public void setDrawListener(DrawListener listener) {
|
|
mDrawListener = listener;
|
|
}
|
|
|
|
/** Used by robocop for testing purposes. Not for production use! This is used via reflection by robocop. */
|
|
public interface DrawListener {
|
|
public void drawFinished(int x, int y, int width, int height);
|
|
}
|
|
}
|
|
|