| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.view; |
| |
| import android.graphics.Rect; |
| import android.graphics.SurfaceTexture; |
| import android.os.Looper; |
| import android.os.SystemClock; |
| import android.os.Trace; |
| import android.util.Log; |
| import android.view.Surface.OutOfResourcesException; |
| import android.view.View.AttachInfo; |
| |
| import java.io.PrintWriter; |
| import java.lang.reflect.Method; |
| import java.util.HashMap; |
| |
| /** |
| * Hardware renderer that proxies the rendering to a render thread. Most calls |
| * are synchronous, however a few such as draw() are posted async. The display list |
| * is shared between the two threads and is guarded by a top level lock. |
| * |
| * The UI thread can block on the RenderThread, but RenderThread must never |
| * block on the UI thread. |
| * |
| * Note that although currently the EGL context & surfaces are created & managed |
| * by the render thread, the goal is to move that into a shared structure that can |
| * be managed by both threads. EGLSurface creation & deletion should ideally be |
| * done on the UI thread and not the RenderThread to avoid stalling the |
| * RenderThread with surface buffer allocation. |
| * |
| * @hide |
| */ |
| public class ThreadedRenderer extends HardwareRenderer { |
| private static final String LOGTAG = "ThreadedRenderer"; |
| |
| @SuppressWarnings("serial") |
| static HashMap<String, Method> sMethodLut = new HashMap<String, Method>() {{ |
| Method[] methods = RemoteGLRenderer.class.getDeclaredMethods(); |
| for (Method m : methods) { |
| m.setAccessible(true); |
| put(m.getName() + ":" + m.getParameterTypes().length, m); |
| } |
| }}; |
| static boolean sNeedsInit = true; |
| |
| private RemoteGLRenderer mRemoteRenderer; |
| private int mWidth, mHeight; |
| private RTJob mPreviousDraw; |
| |
| ThreadedRenderer(boolean translucent) { |
| mRemoteRenderer = new RemoteGLRenderer(this, translucent); |
| setEnabled(true); |
| if (sNeedsInit) { |
| sNeedsInit = false; |
| postToRenderThread(new Runnable() { |
| @Override |
| public void run() { |
| // Hack to allow GLRenderer to create a handler to post the EGL |
| // destruction to, although it'll never run |
| Looper.prepare(); |
| } |
| }); |
| } |
| } |
| |
| @Override |
| void destroy(boolean full) { |
| run("destroy", full); |
| } |
| |
| @Override |
| boolean initialize(Surface surface) throws OutOfResourcesException { |
| return (Boolean) run("initialize", surface); |
| } |
| |
| @Override |
| void updateSurface(Surface surface) throws OutOfResourcesException { |
| post("updateSurface", surface); |
| } |
| |
| @Override |
| void destroyLayers(View view) { |
| throw new NoSuchMethodError(); |
| } |
| |
| @Override |
| void destroyHardwareResources(View view) { |
| run("destroyHardwareResources", view); |
| } |
| |
| @Override |
| void invalidate(Surface surface) { |
| post("invalidate", surface); |
| } |
| |
| @Override |
| boolean validate() { |
| // TODO Remove users of this API |
| return false; |
| } |
| |
| @Override |
| boolean safelyRun(Runnable action) { |
| return (Boolean) run("safelyRun", action); |
| } |
| |
| @Override |
| void setup(int width, int height) { |
| mWidth = width; |
| mHeight = height; |
| post("setup", width, height); |
| } |
| |
| @Override |
| int getWidth() { |
| return mWidth; |
| } |
| |
| @Override |
| int getHeight() { |
| return mHeight; |
| } |
| |
| @Override |
| void dumpGfxInfo(PrintWriter pw) { |
| // TODO Auto-generated method stub |
| } |
| |
| @Override |
| long getFrameCount() { |
| // TODO Auto-generated method stub |
| return 0; |
| } |
| |
| @Override |
| boolean loadSystemProperties() { |
| return (Boolean) run("loadSystemProperties"); |
| } |
| |
| @Override |
| void pushLayerUpdate(HardwareLayer layer) { |
| throw new NoSuchMethodError(); |
| } |
| |
| @Override |
| void cancelLayerUpdate(HardwareLayer layer) { |
| throw new NoSuchMethodError(); |
| } |
| |
| @Override |
| void flushLayerUpdates() { |
| throw new NoSuchMethodError(); |
| } |
| |
| /** |
| * TODO: Remove |
| * Temporary hack to allow RenderThreadTest prototype app to trigger |
| * replaying a DisplayList after modifying the displaylist properties |
| * |
| * @hide */ |
| public void repeatLastDraw() { |
| if (mPreviousDraw == null) { |
| throw new IllegalStateException("There isn't a previous draw"); |
| } |
| synchronized (mPreviousDraw) { |
| mPreviousDraw.completed = false; |
| } |
| mPreviousDraw.args[3] = null; |
| postToRenderThread(mPreviousDraw); |
| } |
| |
| @Override |
| void draw(View view, AttachInfo attachInfo, HardwareDrawCallbacks callbacks, Rect dirty) { |
| requireCompletion(mPreviousDraw); |
| |
| attachInfo.mIgnoreDirtyState = true; |
| attachInfo.mDrawingTime = SystemClock.uptimeMillis(); |
| view.mPrivateFlags |= View.PFLAG_DRAWN; |
| |
| view.mRecreateDisplayList = (view.mPrivateFlags & View.PFLAG_INVALIDATED) |
| == View.PFLAG_INVALIDATED; |
| view.mPrivateFlags &= ~View.PFLAG_INVALIDATED; |
| |
| Trace.traceBegin(Trace.TRACE_TAG_VIEW, "getDisplayList"); |
| DisplayList displayList = view.getDisplayList(); |
| Trace.traceEnd(Trace.TRACE_TAG_VIEW); |
| |
| view.mRecreateDisplayList = false; |
| |
| mPreviousDraw = post("drawDisplayList", displayList, attachInfo, |
| callbacks, dirty); |
| } |
| |
| @Override |
| HardwareLayer createHardwareLayer(boolean isOpaque) { |
| throw new NoSuchMethodError(); |
| } |
| |
| @Override |
| HardwareLayer createHardwareLayer(int width, int height, boolean isOpaque) { |
| throw new NoSuchMethodError(); |
| } |
| |
| @Override |
| SurfaceTexture createSurfaceTexture(HardwareLayer layer) { |
| throw new NoSuchMethodError(); |
| } |
| |
| @Override |
| void setSurfaceTexture(HardwareLayer layer, SurfaceTexture surfaceTexture) { |
| throw new NoSuchMethodError(); |
| } |
| |
| @Override |
| void detachFunctor(int functor) { |
| run("detachFunctor", functor); |
| } |
| |
| @Override |
| boolean attachFunctor(AttachInfo attachInfo, int functor) { |
| return (Boolean) run("attachFunctor", attachInfo, functor); |
| } |
| |
| @Override |
| void setName(String name) { |
| post("setName", name); |
| } |
| |
| private static void requireCompletion(RTJob job) { |
| if (job != null) { |
| synchronized (job) { |
| if (!job.completed) { |
| try { |
| job.wait(); |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| } |
| } |
| |
| private RTJob post(String method, Object... args) { |
| RTJob job = new RTJob(); |
| job.method = sMethodLut.get(method + ":" + args.length); |
| job.args = args; |
| job.target = mRemoteRenderer; |
| if (job.method == null) { |
| throw new NullPointerException("Couldn't find method: " + method); |
| } |
| postToRenderThread(job); |
| return job; |
| } |
| |
| private Object run(String method, Object... args) { |
| RTJob job = new RTJob(); |
| job.method = sMethodLut.get(method + ":" + args.length); |
| job.args = args; |
| job.target = mRemoteRenderer; |
| if (job.method == null) { |
| throw new NullPointerException("Couldn't find method: " + method); |
| } |
| synchronized (job) { |
| postToRenderThread(job); |
| try { |
| job.wait(); |
| return job.ret; |
| } catch (InterruptedException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| |
| static class RTJob implements Runnable { |
| Method method; |
| Object[] args; |
| Object target; |
| Object ret; |
| boolean completed = false; |
| |
| @Override |
| public void run() { |
| try { |
| ret = method.invoke(target, args); |
| synchronized (this) { |
| completed = true; |
| notify(); |
| } |
| } catch (Exception e) { |
| Log.e(LOGTAG, "Failed to invoke: " + method.getName(), e); |
| } |
| } |
| } |
| |
| /** @hide */ |
| public static native void postToRenderThread(Runnable runnable); |
| } |