1 /* 2 * Copyright (C) 2015 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 17 package com.android.camera.captureintent.resource; 18 19 import com.android.camera.async.SafeCloseable; 20 import com.android.camera.util.Size; 21 22 import android.view.Surface; 23 24 import javax.annotation.ParametersAreNonnullByDefault; 25 26 /** 27 * Defines an interface that any implementation of this is responsible for 28 * retaining and releasing a {@link android.graphics.SurfaceTexture}. 29 */ 30 @ParametersAreNonnullByDefault 31 public interface ResourceSurfaceTexture extends SafeCloseable { 32 /** 33 * Creates a surface from this surface texture for preview. 34 * 35 * @return A {@link android.view.Surface} object. 36 */ createPreviewSurface()37 public Surface createPreviewSurface(); 38 39 /** 40 * Updates the transform matrix in {@link com.android.camera.TextureViewHelper}. 41 */ updatePreviewTransform()42 public void updatePreviewTransform(); 43 44 /** 45 * Obtains the chosen preview stream size. 46 * 47 * @return A {@link com.android.camera.util.Size} object. 48 */ getPreviewSize()49 public Size getPreviewSize(); 50 51 /** 52 * Changes the preview stream size. 53 * 54 * @param previewSize The new preview stream size. 55 */ setPreviewSize(Size previewSize)56 public void setPreviewSize(Size previewSize); 57 58 /** 59 * Obtains the current view layout size for the preview. 60 * 61 * @return A {@link com.android.camera.util.Size} object. 62 */ getPreviewLayoutSize()63 public Size getPreviewLayoutSize(); 64 65 /** 66 * Changes the current view layout size. 67 * 68 * @param previewLayoutSize The new preview view layout size. 69 */ setPreviewLayoutSize(Size previewLayoutSize)70 public void setPreviewLayoutSize(Size previewLayoutSize); 71 } 72