| /* |
| * Copyright (C) 2010 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.hwui; |
| |
| import android.app.Activity; |
| import android.content.Context; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.BitmapShader; |
| import android.graphics.Canvas; |
| import android.graphics.Matrix; |
| import android.graphics.Paint; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.graphics.Shader; |
| import android.os.Bundle; |
| import android.view.View; |
| |
| @SuppressWarnings({"UnusedDeclaration"}) |
| public class Alpha8BitmapActivity extends Activity { |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| setContentView(new BitmapsView(this)); |
| } |
| |
| static class BitmapsView extends View { |
| private Paint mBitmapPaint; |
| private final Bitmap mBitmap1; |
| private final float[] mVertices; |
| |
| BitmapsView(Context c) { |
| super(c); |
| |
| Bitmap texture = BitmapFactory.decodeResource(c.getResources(), R.drawable.spot_mask); |
| mBitmap1 = Bitmap.createBitmap(texture.getWidth(), texture.getHeight(), |
| Bitmap.Config.ALPHA_8); |
| Canvas canvas = new Canvas(mBitmap1); |
| canvas.drawBitmap(texture, 0.0f, 0.0f, null); |
| |
| texture = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1); |
| BitmapShader shader = new BitmapShader(texture, |
| Shader.TileMode.REPEAT, Shader.TileMode.REPEAT); |
| |
| final float width = texture.getWidth() / 3.0f; |
| final float height = texture.getHeight() / 3.0f; |
| |
| mVertices = new float[] { |
| 0.0f, 0.0f, width, 0.0f, width * 2, 0.0f, width * 3, 0.0f, |
| 0.0f, height, width, height, width * 2, height, width * 4, height, |
| 0.0f, height * 2, width, height * 2, width * 2, height * 2, width * 3, height * 2, |
| 0.0f, height * 4, width, height * 4, width * 2, height * 4, width * 4, height * 4, |
| }; |
| |
| mBitmapPaint = new Paint(); |
| mBitmapPaint.setFilterBitmap(true); |
| mBitmapPaint.setShader(shader); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| super.onDraw(canvas); |
| |
| canvas.drawColor(0xffffffff); |
| canvas.drawBitmap(mBitmap1, 0.0f, 0.0f, mBitmapPaint); |
| |
| Matrix matrix = new Matrix(); |
| matrix.setScale(2.0f, 2.0f); |
| matrix.postTranslate(0.0f, mBitmap1.getHeight()); |
| canvas.drawBitmap(mBitmap1, matrix, mBitmapPaint); |
| |
| Rect src = new Rect(0, 0, mBitmap1.getWidth() / 2, mBitmap1.getHeight() / 2); |
| Rect dst = new Rect(0, mBitmap1.getHeight() * 3, mBitmap1.getWidth(), |
| mBitmap1.getHeight() * 4); |
| canvas.drawBitmap(mBitmap1, src, dst, mBitmapPaint); |
| |
| canvas.translate(0.0f, mBitmap1.getHeight() * 4); |
| canvas.drawBitmapMesh(mBitmap1, 3, 3, mVertices, 0, null, 0, mBitmapPaint); |
| |
| invalidate(); |
| } |
| } |
| } |