64a55af0ac
Cleaned up the implementation of Surface and SurfaceSession to use more consistent naming and structure. Added JNI for all of the new surface flinger display API calls. Enforced the requirement that all Surfaces created by the window manager be named. Updated the display manager service to use the new methods. Change-Id: I2a658f1bfd0437e1c6f9d22df8d4ffcce7284ca2
113 lines
3.2 KiB
Java
113 lines
3.2 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.wm;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.PixelFormat;
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import android.graphics.Rect;
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import android.graphics.Region;
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import android.view.Display;
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import android.view.Surface;
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import android.view.SurfaceSession;
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class StrictModeFlash {
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private static final String TAG = "StrictModeFlash";
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Surface mSurface;
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int mLastDW;
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int mLastDH;
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boolean mDrawNeeded;
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final int mThickness = 20;
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public StrictModeFlash(Display display, SurfaceSession session) {
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try {
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mSurface = new Surface(session, "StrictModeFlash",
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1, 1, PixelFormat.TRANSLUCENT, Surface.HIDDEN);
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} catch (Surface.OutOfResourcesException e) {
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return;
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}
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mSurface.setLayerStack(display.getLayerStack());
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mSurface.setLayer(WindowManagerService.TYPE_LAYER_MULTIPLIER * 101); // one more than Watermark? arbitrary.
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mSurface.setPosition(0, 0);
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mSurface.show();
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mDrawNeeded = true;
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}
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private void drawIfNeeded() {
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if (!mDrawNeeded) {
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return;
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}
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mDrawNeeded = false;
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final int dw = mLastDW;
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final int dh = mLastDH;
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Rect dirty = new Rect(0, 0, dw, dh);
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Canvas c = null;
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try {
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c = mSurface.lockCanvas(dirty);
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} catch (IllegalArgumentException e) {
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} catch (Surface.OutOfResourcesException e) {
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}
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if (c == null) {
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return;
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}
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// Top
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c.clipRect(new Rect(0, 0, dw, mThickness), Region.Op.REPLACE);
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c.drawColor(Color.RED);
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// Left
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c.clipRect(new Rect(0, 0, mThickness, dh), Region.Op.REPLACE);
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c.drawColor(Color.RED);
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// Right
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c.clipRect(new Rect(dw - mThickness, 0, dw, dh), Region.Op.REPLACE);
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c.drawColor(Color.RED);
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// Bottom
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c.clipRect(new Rect(0, dh - mThickness, dw, dh), Region.Op.REPLACE);
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c.drawColor(Color.RED);
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mSurface.unlockCanvasAndPost(c);
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}
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// Note: caller responsible for being inside
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// Surface.openTransaction() / closeTransaction()
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public void setVisibility(boolean on) {
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if (mSurface == null) {
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return;
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}
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drawIfNeeded();
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if (on) {
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mSurface.show();
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} else {
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mSurface.hide();
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}
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}
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void positionSurface(int dw, int dh) {
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if (mLastDW == dw && mLastDH == dh) {
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return;
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}
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mLastDW = dw;
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mLastDH = dh;
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mSurface.setSize(dw, dh);
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mDrawNeeded = true;
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}
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}
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