Texture2D.java revision a7a211b8a68a7d3f5ff4409aa286db07f96c0550 
1/*
2 * Copyright (C) 2011 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 com.android.scenegraph;
18
19import java.io.File;
20import java.io.IOException;
21import java.io.InputStream;
22import java.io.FileInputStream;
23import java.io.BufferedInputStream;
24import java.lang.Math;
25import java.net.URL;
26import java.util.ArrayList;
27
28import android.content.res.Resources;
29import android.graphics.Bitmap;
30import android.graphics.BitmapFactory;
31import android.renderscript.*;
32import android.renderscript.Allocation.MipmapControl;
33import android.renderscript.Matrix4f;
34import android.renderscript.Type.Builder;
35import android.util.Log;
36
37/**
38 * @hide
39 */
40public class Texture2D extends SceneGraphBase {
41    private static String mSDCardPath = "sdcard/scenegraph/";
42    private final boolean mLoadFromSD = true;
43
44    String mFileName;
45    Allocation mRsTexture;
46
47    public Texture2D() {
48    }
49
50    public void setFileName(String file) {
51        mFileName = file;
52    }
53
54    public String getFileName() {
55        return mFileName;
56    }
57
58    Allocation getRsData(RenderScriptGL rs, Resources res) {
59        if (mRsTexture != null) {
60            return mRsTexture;
61        }
62
63        String shortName = mFileName.substring(mFileName.lastIndexOf('/') + 1);
64        InputStream is = null;
65        try {
66            if (!mLoadFromSD) {
67                is = res.getAssets().open(shortName);
68            } else {
69                File f = new File(mSDCardPath + shortName);
70                is = new BufferedInputStream(new FileInputStream(f));
71            }
72        } catch (IOException e) {
73            Log.e("Texture2D",
74                  "Could not open image file " + shortName + " Message: " + e.getMessage());
75            return null;
76        }
77
78        Bitmap b = BitmapFactory.decodeStream(is);
79        mRsTexture = Allocation.createFromBitmap(rs, b,
80                                                 Allocation.MipmapControl.MIPMAP_ON_SYNC_TO_TEXTURE,
81                                                 Allocation.USAGE_GRAPHICS_TEXTURE);
82        return mRsTexture;
83    }
84}
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