Revision bc0a685b
Added by Leszek Koltunski almost 8 years ago
| src/main/java/org/distorted/examples/plainmonalisa/RenderHandler.java | ||
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// Copyright 2016 Leszek Koltunski // |
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// // |
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// This file is part of Distorted. // |
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// // |
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// Distorted is free software: you can redistribute it and/or modify // |
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// it under the terms of the GNU General Public License as published by // |
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// the Free Software Foundation, either version 2 of the License, or // |
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// (at your option) any later version. // |
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// // |
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// Distorted is distributed in the hope that it will be useful, // |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of // |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // |
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// GNU General Public License for more details. // |
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// // |
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// You should have received a copy of the GNU General Public License // |
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// along with Distorted. If not, see <http://www.gnu.org/licenses/>. // |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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package org.distorted.examples.plainmonalisa; |
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import android.os.Handler; |
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import java.lang.ref.WeakReference; |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// Used for messages sent from the UI thread to the render thread. |
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/** |
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* Handler for RenderThread. Used for messages sent from the UI thread to the render thread. |
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* <p> |
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* The object is created on the render thread, and the various "send" methods are called |
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* from the UI thread. |
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*/ |
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public class RenderHandler extends Handler |
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{
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private static final String TAG = "RenderHandler"; |
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private static final int MSG_DO_FRAME = 2; |
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private static final int MSG_SHUTDOWN = 4; |
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// This shouldn't need to be a weak ref, since we'll go away when the Looper quits, |
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// but no real harm in it. |
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private WeakReference<RenderThread> mWeakRenderThread; |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Call from render thread. |
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*/ |
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public RenderHandler(RenderThread rt) |
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{
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mWeakRenderThread = new WeakReference<>(rt);
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}
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{
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mWeakRenderThread = new WeakReference<>(rt); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Sends the "surface created" message. |
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* <p> |
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* Call from UI thread. |
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*/ |
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public void sendSurfaceCreated() |
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{
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sendMessage(obtainMessage(RenderHandler.MSG_SURFACE_CREATED)); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Sends the "surface changed" message, forwarding what we got from the SurfaceHolder. |
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* <p> |
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* Call from UI thread. |
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*/ |
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public void sendSurfaceChanged(@SuppressWarnings("unused") int format, int width, int height)
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public void sendSurfaceChanged(int format, int width, int height) |
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{
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sendMessage(obtainMessage(RenderHandler.MSG_SURFACE_CHANGED, width, height)); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Sends the "do frame" message, forwarding the Choreographer event. |
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* <p> |
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* Call from UI thread. |
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*/ |
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public void sendDoFrame(long frameTimeNanos) |
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{
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sendMessage(obtainMessage(RenderHandler.MSG_DO_FRAME, (int) (frameTimeNanos >> 32), (int) frameTimeNanos)); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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/** |
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* Sends the "shutdown" message, which tells the render thread to halt. |
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* <p> |
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* Call from UI thread. |
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*/ |
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public void sendShutdown() |
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{
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sendMessage(obtainMessage(RenderHandler.MSG_SHUTDOWN));
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}
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{
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sendMessage(obtainMessage(RenderHandler.MSG_SHUTDOWN)); |
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} |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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@Override // runs on RenderThread |
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public void handleMessage(Message msg) |
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{
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int what = msg.what; |
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//Log.d(TAG, "RenderHandler [" + this + "]: what=" + what); |
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RenderThread renderThread = mWeakRenderThread.get(); |
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if (renderThread == null) |
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