| /* |
| * 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.SystemClock; |
| import android.os.Trace; |
| import android.view.Surface.OutOfResourcesException; |
| import android.view.View.AttachInfo; |
| |
| import java.io.PrintWriter; |
| |
| /** |
| * Hardware renderer that proxies the rendering to a render thread. Most calls |
| * are currently synchronous. |
| * TODO: Make draw() async. |
| * TODO: Figure out how to share the DisplayList between two threads (global lock?) |
| * |
| * The UI thread can block on the RenderThread, but RenderThread must never |
| * block on the UI thread. |
| * |
| * ThreadedRenderer creates an instance of RenderProxy. RenderProxy in turn creates |
| * and manages a CanvasContext on the RenderThread. The CanvasContext is fully managed |
| * by the lifecycle of the RenderProxy. |
| * |
| * 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"; |
| |
| private static final Rect NULL_RECT = new Rect(-1, -1, -1, -1); |
| |
| private int mWidth, mHeight; |
| private long mNativeProxy; |
| |
| ThreadedRenderer(boolean translucent) { |
| mNativeProxy = nCreateProxy(translucent); |
| setEnabled(mNativeProxy != 0); |
| } |
| |
| @Override |
| void destroy(boolean full) { |
| nDestroyCanvas(mNativeProxy); |
| } |
| |
| @Override |
| boolean initialize(Surface surface) throws OutOfResourcesException { |
| return nInitialize(mNativeProxy, surface); |
| } |
| |
| @Override |
| void updateSurface(Surface surface) throws OutOfResourcesException { |
| nUpdateSurface(mNativeProxy, surface); |
| } |
| |
| @Override |
| void destroyLayers(View view) { |
| throw new NoSuchMethodError(); |
| } |
| |
| @Override |
| void destroyHardwareResources(View view) { |
| // TODO: canvas.clearLayerUpdates() |
| destroyResources(view); |
| // TODO: GLES20Canvas.flushCaches(GLES20Canvas.FLUSH_CACHES_LAYERS); |
| } |
| |
| private static void destroyResources(View view) { |
| view.destroyHardwareResources(); |
| |
| if (view instanceof ViewGroup) { |
| ViewGroup group = (ViewGroup) view; |
| |
| int count = group.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| destroyResources(group.getChildAt(i)); |
| } |
| } |
| } |
| |
| @Override |
| void invalidate(Surface surface) { |
| updateSurface(surface); |
| } |
| |
| @Override |
| boolean validate() { |
| // TODO Remove users of this API |
| return false; |
| } |
| |
| @Override |
| boolean safelyRun(Runnable action) { |
| // TODO: |
| return false; |
| } |
| |
| @Override |
| void setup(int width, int height) { |
| mWidth = width; |
| mHeight = height; |
| nSetup(mNativeProxy, 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 false; |
| } |
| |
| @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() { |
| } |
| |
| @Override |
| void draw(View view, AttachInfo attachInfo, HardwareDrawCallbacks callbacks, Rect dirty) { |
| 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; |
| |
| if (dirty == null) { |
| dirty = NULL_RECT; |
| } |
| nDrawDisplayList(mNativeProxy, displayList.getNativeDisplayList(), |
| dirty.left, dirty.top, dirty.right, dirty.bottom); |
| } |
| |
| @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(long functor) { |
| nDetachFunctor(mNativeProxy, functor); |
| } |
| |
| @Override |
| void attachFunctor(AttachInfo attachInfo, long functor) { |
| nAttachFunctor(mNativeProxy, functor); |
| } |
| |
| @Override |
| void setName(String name) { |
| } |
| |
| @Override |
| protected void finalize() throws Throwable { |
| try { |
| nDeleteProxy(mNativeProxy); |
| } finally { |
| super.finalize(); |
| } |
| } |
| |
| /** @hide */ |
| public static native void postToRenderThread(Runnable runnable); |
| |
| private static native long nCreateProxy(boolean translucent); |
| private static native void nDeleteProxy(long nativeProxy); |
| |
| private static native boolean nInitialize(long nativeProxy, Surface window); |
| private static native void nUpdateSurface(long nativeProxy, Surface window); |
| private static native void nSetup(long nativeProxy, int width, int height); |
| private static native void nDrawDisplayList(long nativeProxy, long displayList, |
| int dirtyLeft, int dirtyTop, int dirtyRight, int dirtyBottom); |
| private static native void nDestroyCanvas(long nativeProxy); |
| |
| private static native void nAttachFunctor(long nativeProxy, long functor); |
| private static native void nDetachFunctor(long nativeProxy, long functor); |
| } |