Stan Iliev | 010b6a5 | 2017-01-27 14:30:23 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package com.android.test.uibench; |
| 17 | |
| 18 | import android.graphics.Canvas; |
| 19 | import android.graphics.Color; |
| 20 | import android.graphics.ColorFilter; |
| 21 | import android.graphics.Paint; |
| 22 | import android.graphics.PixelFormat; |
| 23 | import android.graphics.Rect; |
| 24 | import android.graphics.drawable.Drawable; |
| 25 | import android.os.Bundle; |
Aurimas Liutikas | 1d6c6da | 2018-04-03 17:08:29 -0700 | [diff] [blame] | 26 | import androidx.appcompat.app.AppCompatActivity; |
Stan Iliev | 010b6a5 | 2017-01-27 14:30:23 -0500 | [diff] [blame] | 27 | |
| 28 | /** |
| 29 | * Test Canvas.saveLayer performance by interleaving drawText/drawRect with saveLayer. |
| 30 | * This test will be used to measure if drawing interleaved layers at the beginning of a frame will |
| 31 | * decrease FBO switching overhead (this is a future optimization in SkiaGL rendering pipeline). |
| 32 | */ |
| 33 | public class SaveLayerInterleaveActivity extends AppCompatActivity { |
| 34 | |
| 35 | @Override |
| 36 | protected void onCreate(Bundle savedInstanceState) { |
| 37 | super.onCreate(savedInstanceState); |
| 38 | getWindow().setBackgroundDrawable(new Drawable() { |
| 39 | private final Paint mBluePaint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| 40 | private final Paint mGreenPaint = new Paint(Paint.ANTI_ALIAS_FLAG); |
| 41 | |
| 42 | @Override |
| 43 | public void setAlpha(int alpha) { |
| 44 | } |
| 45 | |
| 46 | @Override |
| 47 | public int getOpacity() { |
| 48 | return PixelFormat.OPAQUE; |
| 49 | } |
| 50 | |
| 51 | @Override |
| 52 | public void setColorFilter(ColorFilter colorFilter) { |
| 53 | } |
| 54 | |
| 55 | @Override |
| 56 | public void draw(Canvas canvas) { |
| 57 | canvas.drawColor(Color.RED); |
| 58 | |
| 59 | Rect bounds = getBounds(); |
| 60 | int regions = 20; |
| 61 | int smallRectHeight = (bounds.height()/regions); |
| 62 | int padding = smallRectHeight / 4; |
| 63 | int top = bounds.top; |
| 64 | mBluePaint.setColor(Color.BLUE); |
| 65 | mBluePaint.setTextSize(padding); |
| 66 | mGreenPaint.setColor(Color.GREEN); |
| 67 | mGreenPaint.setTextSize(padding); |
| 68 | |
| 69 | //interleave drawText and drawRect with saveLayer ops |
| 70 | for (int i = 0; i < regions; i++, top += smallRectHeight) { |
| 71 | canvas.saveLayer(bounds.left, top, bounds.right, top + padding, |
| 72 | mBluePaint); |
| 73 | canvas.drawColor(Color.YELLOW); |
| 74 | canvas.drawText("offscreen line "+ i, bounds.left, top + padding, |
| 75 | mBluePaint); |
| 76 | canvas.restore(); |
| 77 | |
| 78 | Rect partX = new Rect(bounds.left, top + padding, |
| 79 | bounds.right,top + smallRectHeight - padding); |
| 80 | canvas.drawRect(partX, mBluePaint); |
| 81 | canvas.drawText("onscreen line "+ i, bounds.left, |
| 82 | top + smallRectHeight - padding, mGreenPaint); |
| 83 | } |
| 84 | |
| 85 | invalidateSelf(); |
| 86 | } |
| 87 | }); |
| 88 | } |
| 89 | } |