| /* |
| * Copyright (C) 2017 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 com.android.test.uibench; |
| |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.ColorFilter; |
| import android.graphics.Paint; |
| import android.graphics.PixelFormat; |
| import android.graphics.Rect; |
| import android.graphics.drawable.Drawable; |
| import android.os.Bundle; |
| import android.support.v7.app.AppCompatActivity; |
| |
| /** |
| * Test Canvas.saveLayer performance by interleaving drawText/drawRect with saveLayer. |
| * This test will be used to measure if drawing interleaved layers at the beginning of a frame will |
| * decrease FBO switching overhead (this is a future optimization in SkiaGL rendering pipeline). |
| */ |
| public class SaveLayerInterleaveActivity extends AppCompatActivity { |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| getWindow().setBackgroundDrawable(new Drawable() { |
| private final Paint mBluePaint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| private final Paint mGreenPaint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| |
| @Override |
| public void setAlpha(int alpha) { |
| } |
| |
| @Override |
| public int getOpacity() { |
| return PixelFormat.OPAQUE; |
| } |
| |
| @Override |
| public void setColorFilter(ColorFilter colorFilter) { |
| } |
| |
| @Override |
| public void draw(Canvas canvas) { |
| canvas.drawColor(Color.RED); |
| |
| Rect bounds = getBounds(); |
| int regions = 20; |
| int smallRectHeight = (bounds.height()/regions); |
| int padding = smallRectHeight / 4; |
| int top = bounds.top; |
| mBluePaint.setColor(Color.BLUE); |
| mBluePaint.setTextSize(padding); |
| mGreenPaint.setColor(Color.GREEN); |
| mGreenPaint.setTextSize(padding); |
| |
| //interleave drawText and drawRect with saveLayer ops |
| for (int i = 0; i < regions; i++, top += smallRectHeight) { |
| canvas.saveLayer(bounds.left, top, bounds.right, top + padding, |
| mBluePaint); |
| canvas.drawColor(Color.YELLOW); |
| canvas.drawText("offscreen line "+ i, bounds.left, top + padding, |
| mBluePaint); |
| canvas.restore(); |
| |
| Rect partX = new Rect(bounds.left, top + padding, |
| bounds.right,top + smallRectHeight - padding); |
| canvas.drawRect(partX, mBluePaint); |
| canvas.drawText("onscreen line "+ i, bounds.left, |
| top + smallRectHeight - padding, mGreenPaint); |
| } |
| |
| invalidateSelf(); |
| } |
| }); |
| } |
| } |