RSSurfaceView.java revision a8551b1efa89841c01d3b6a01ac65e57084a3234 
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    private RenderScriptGL mRS;
40
41    /**
42     * Standard View constructor. In order to render something, you
43     * must call {@link #setRenderer} to register a renderer.
44     */
45    public RSSurfaceView(Context context) {
46        super(context);
47        init();
48        //Log.v(RenderScript.LOG_TAG, "RSSurfaceView");
49    }
50
51    /**
52     * Standard View constructor. In order to render something, you
53     * must call {@link #setRenderer} to register a renderer.
54     */
55    public RSSurfaceView(Context context, AttributeSet attrs) {
56        super(context, attrs);
57        init();
58        //Log.v(RenderScript.LOG_TAG, "RSSurfaceView");
59    }
60
61    private void init() {
62        // Install a SurfaceHolder.Callback so we get notified when the
63        // underlying surface is created and destroyed
64        SurfaceHolder holder = getHolder();
65        holder.addCallback(this);
66    }
67
68    /**
69     * This method is part of the SurfaceHolder.Callback interface, and is
70     * not normally called or subclassed by clients of RSSurfaceView.
71     */
72    public void surfaceCreated(SurfaceHolder holder) {
73        Log.v(RenderScript.LOG_TAG, "surfaceCreated");
74        mSurfaceHolder = holder;
75    }
76
77    /**
78     * This method is part of the SurfaceHolder.Callback interface, and is
79     * not normally called or subclassed by clients of RSSurfaceView.
80     */
81    public void surfaceDestroyed(SurfaceHolder holder) {
82        // Surface will be destroyed when we return
83        Log.v(RenderScript.LOG_TAG, "surfaceDestroyed");
84        if (mRS != null) {
85            mRS.contextSetSurface(0, 0, null);
86        }
87    }
88
89    /**
90     * This method is part of the SurfaceHolder.Callback interface, and is
91     * not normally called or subclassed by clients of RSSurfaceView.
92     */
93    public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
94        Log.v(RenderScript.LOG_TAG, "surfaceChanged");
95        if (mRS != null) {
96            mRS.contextSetSurface(w, h, holder.getSurface());
97        }
98    }
99
100    /**
101     * Inform the view that the activity is paused. The owner of this view must
102     * call this method when the activity is paused. Calling this method will
103     * pause the rendering thread.
104     * Must not be called before a renderer has been set.
105     */
106    public void onPause() {
107        if(mRS != null) {
108            mRS.pause();
109        }
110        //Log.v(RenderScript.LOG_TAG, "onPause");
111    }
112
113    /**
114     * Inform the view that the activity is resumed. The owner of this view must
115     * call this method when the activity is resumed. Calling this method will
116     * recreate the OpenGL display and resume the rendering
117     * thread.
118     * Must not be called before a renderer has been set.
119     */
120    public void onResume() {
121        if(mRS != null) {
122            mRS.resume();
123        }
124        //Log.v(RenderScript.LOG_TAG, "onResume");
125    }
126
127    /**
128     * Queue a runnable to be run on the GL rendering thread. This can be used
129     * to communicate with the Renderer on the rendering thread.
130     * Must not be called before a renderer has been set.
131     * @param r the runnable to be run on the GL rendering thread.
132     */
133    public void queueEvent(Runnable r) {
134        //Log.v(RenderScript.LOG_TAG, "queueEvent");
135    }
136
137    /**
138     * This method is used as part of the View class and is not normally
139     * called or subclassed by clients of RSSurfaceView.
140     * Must not be called before a renderer has been set.
141     */
142    @Override
143    protected void onDetachedFromWindow() {
144        super.onDetachedFromWindow();
145    }
146
147    // ----------------------------------------------------------------------
148
149    public RenderScriptGL createRenderScript(boolean useDepth, boolean forceSW) {
150        Log.v(RenderScript.LOG_TAG, "createRenderScript");
151        mRS = new RenderScriptGL(useDepth, forceSW);
152        return mRS;
153    }
154
155    public RenderScriptGL createRenderScript(boolean useDepth) {
156        return createRenderScript(useDepth, false);
157    }
158
159    public void destroyRenderScript() {
160        Log.v(RenderScript.LOG_TAG, "destroyRenderScript");
161        mRS.destroy();
162        mRS = null;
163    }
164
165    public void createRenderScript(RenderScriptGL rs) {
166        mRS = rs;
167    }
168}
169
170