RSSurfaceView.java revision ebfb436a49673693b98469683451bd9ede797557 
1/*
2 * Copyright (C) 2008 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
17package android.renderscript;
18
19import java.io.Writer;
20import java.util.ArrayList;
21import java.util.concurrent.Semaphore;
22
23import android.content.Context;
24import android.os.Handler;
25import android.os.Message;
26import android.util.AttributeSet;
27import android.util.Log;
28import android.util.Log;
29import android.view.Surface;
30import android.view.SurfaceHolder;
31import android.view.SurfaceView;
32
33/**
34 * @hide
35 *
36 **/
37public class RSSurfaceView extends SurfaceView implements SurfaceHolder.Callback {
38    private SurfaceHolder mSurfaceHolder;
39
40    /**
41     * Standard View constructor. In order to render something, you
42     * must call {@link #setRenderer} to register a renderer.
43     */
44    public RSSurfaceView(Context context) {
45        super(context);
46        init();
47        Log.v(RenderScript.LOG_TAG, "RSSurfaceView");
48    }
49
50    /**
51     * Standard View constructor. In order to render something, you
52     * must call {@link #setRenderer} to register a renderer.
53     */
54    public RSSurfaceView(Context context, AttributeSet attrs) {
55        super(context, attrs);
56        init();
57        Log.v(RenderScript.LOG_TAG, "RSSurfaceView");
58    }
59
60    private void init() {
61        // Install a SurfaceHolder.Callback so we get notified when the
62        // underlying surface is created and destroyed
63        SurfaceHolder holder = getHolder();
64        holder.addCallback(this);
65    }
66
67    /**
68     * This method is part of the SurfaceHolder.Callback interface, and is
69     * not normally called or subclassed by clients of RSSurfaceView.
70     */
71    public void surfaceCreated(SurfaceHolder holder) {
72        Log.v(RenderScript.LOG_TAG, "surfaceCreated");
73        mSurfaceHolder = holder;
74    }
75
76    /**
77     * This method is part of the SurfaceHolder.Callback interface, and is
78     * not normally called or subclassed by clients of RSSurfaceView.
79     */
80    public void surfaceDestroyed(SurfaceHolder holder) {
81        // Surface will be destroyed when we return
82        Log.v(RenderScript.LOG_TAG, "surfaceDestroyed");
83    }
84
85    /**
86     * This method is part of the SurfaceHolder.Callback interface, and is
87     * not normally called or subclassed by clients of RSSurfaceView.
88     */
89    public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
90        Log.v(RenderScript.LOG_TAG, "surfaceChanged");
91    }
92
93    /**
94     * Inform the view that the activity is paused. The owner of this view must
95     * call this method when the activity is paused. Calling this method will
96     * pause the rendering thread.
97     * Must not be called before a renderer has been set.
98     */
99    public void onPause() {
100        Log.v(RenderScript.LOG_TAG, "onPause");
101    }
102
103    /**
104     * Inform the view that the activity is resumed. The owner of this view must
105     * call this method when the activity is resumed. Calling this method will
106     * recreate the OpenGL display and resume the rendering
107     * thread.
108     * Must not be called before a renderer has been set.
109     */
110    public void onResume() {
111        Log.v(RenderScript.LOG_TAG, "onResume");
112    }
113
114    /**
115     * Queue a runnable to be run on the GL rendering thread. This can be used
116     * to communicate with the Renderer on the rendering thread.
117     * Must not be called before a renderer has been set.
118     * @param r the runnable to be run on the GL rendering thread.
119     */
120    public void queueEvent(Runnable r) {
121        Log.v(RenderScript.LOG_TAG, "queueEvent");
122    }
123
124    /**
125     * This method is used as part of the View class and is not normally
126     * called or subclassed by clients of RSSurfaceView.
127     * Must not be called before a renderer has been set.
128     */
129    @Override
130    protected void onDetachedFromWindow() {
131        super.onDetachedFromWindow();
132    }
133
134    // ----------------------------------------------------------------------
135
136    public RenderScript createRenderScript(boolean useDepth, boolean forceSW) {
137        Surface sur = null;
138        while ((sur == null) || (mSurfaceHolder == null)) {
139            sur = getHolder().getSurface();
140        }
141        RenderScript rs = new RenderScript(sur, useDepth, forceSW);
142        return rs;
143    }
144
145    public RenderScript createRenderScript(boolean useDepth) {
146        return createRenderScript(useDepth, false);
147    }
148
149
150}
151
152