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 com.android.modelviewer;
18
19import java.io.Writer;
20import java.util.Map;
21import java.util.Vector;
22
23import android.content.res.Resources;
24import android.renderscript.*;
25import android.renderscript.Element.Builder;
26import android.renderscript.ProgramStore.DepthFunc;
27import android.util.Log;
28
29enum TransformType {
30
31    NONE(0),
32    TRANSLATE(1),
33    ROTATE(2),
34    SCALE(3);
35
36    int mID;
37    TransformType(int id) {
38        mID = id;
39    }
40}
41
42public class SgTransform {
43
44
45    ScriptField_SgTransform mTransformField;
46    ScriptField_SgTransform mChildField;
47    public ScriptField_SgTransform.Item mTransformData;
48
49    RenderScript mRS;
50
51    Vector mChildren;
52    SgTransform mParent;
53    int mIndexInParentGroup;
54
55    public void setParent(SgTransform parent, int parentIndex) {
56        mParent = parent;
57        mIndexInParentGroup = parentIndex;
58    }
59
60    public void addChild(SgTransform child) {
61        mChildren.add(child);
62        child.setParent(this, mChildren.size() - 1);
63    }
64
65    public void setTransform(int index, Float4 value, TransformType type) {
66        mTransformData.transforms[index] = value;
67        mTransformData.transformTypes[index] = type.mID;
68    }
69
70    void initData() {
71        int numElements = mTransformData.transforms.length;
72        mTransformData.transformTypes = new int[numElements];
73        for (int i = 0; i < numElements; i ++) {
74            mTransformData.transforms[i] = new Float4(0, 0, 0, 0);
75            mTransformData.transformTypes[i] = TransformType.NONE.mID;
76        }
77
78        mTransformData.isDirty = 1;
79        mTransformData.children = null;
80    }
81
82    public SgTransform(RenderScript rs) {
83        mRS = rs;
84        mTransformData = new ScriptField_SgTransform.Item();
85        mChildren = new Vector();
86        initData();
87    }
88
89    public ScriptField_SgTransform.Item getData() {
90        if (mChildren.size() != 0) {
91            mChildField = new ScriptField_SgTransform(mRS, mChildren.size());
92            mTransformData.children = mChildField.getAllocation();
93
94            for (int i = 0; i < mChildren.size(); i ++) {
95                SgTransform child = (SgTransform)mChildren.get(i);
96                mChildField.set(child.getData(), i, false);
97            }
98            mChildField.copyAll();
99        }
100
101        return mTransformData;
102    }
103
104    public ScriptField_SgTransform getField() {
105        mTransformField = new ScriptField_SgTransform(mRS, 1);
106        mTransformField.set(getData(), 0, true);
107        return mTransformField;
108    }
109}
110
111
112
113