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.lang.Math;
20import java.util.ArrayList;
21
22import com.android.scenegraph.SceneManager;
23
24import android.renderscript.*;
25import android.renderscript.Matrix4f;
26import android.renderscript.RenderScriptGL;
27import android.util.Log;
28
29/**
30 * @hide
31 */
32public class Camera extends SceneGraphBase {
33
34    Transform mTransform;
35
36    ScriptField_Camera_s.Item mData;
37    ScriptField_Camera_s mField;
38
39    public Camera() {
40        mData = new ScriptField_Camera_s.Item();
41        mData.near = 0.1f;
42        mData.far = 1000.0f;
43        mData.horizontalFOV = 60.0f;
44        mData.aspect = 0;
45    }
46
47    public void setTransform(Transform t) {
48        mTransform = t;
49        if (mField != null) {
50            mField.set_transformMatrix(0, mTransform.getRSData().getAllocation(), true);
51            mField.set_isDirty(0, 1, true);
52        }
53    }
54    public void setFOV(float fov) {
55        mData.horizontalFOV = fov;
56        if (mField != null) {
57            mField.set_horizontalFOV(0, fov, true);
58            mField.set_isDirty(0, 1, true);
59        }
60    }
61
62    public void setNear(float n) {
63        mData.near = n;
64        if (mField != null) {
65            mField.set_near(0, n, true);
66            mField.set_isDirty(0, 1, true);
67        }
68    }
69
70    public void setFar(float f) {
71        mData.far = f;
72        if (mField != null) {
73            mField.set_far(0, f, true);
74            mField.set_isDirty(0, 1, true);
75        }
76    }
77
78    public void setName(String n) {
79        super.setName(n);
80        if (mField != null) {
81            RenderScriptGL rs = SceneManager.getRS();
82            mData.name = getNameAlloc(rs);
83            mField.set_name(0, mData.name, true);
84            mField.set_isDirty(0, 1, true);
85        }
86    }
87
88    ScriptField_Camera_s getRSData() {
89        if (mField != null) {
90            return mField;
91        }
92
93        RenderScriptGL rs = SceneManager.getRS();
94        if (rs == null) {
95            return null;
96        }
97
98        if (mTransform == null) {
99            throw new RuntimeException("Cameras without transforms are invalid");
100        }
101
102        mField = new ScriptField_Camera_s(rs, 1);
103
104        mData.transformMatrix = mTransform.getRSData().getAllocation();
105        mData.transformTimestamp = 1;
106        mData.timestamp = 1;
107        mData.isDirty = 1;
108        mData.name = getNameAlloc(rs);
109        mField.set(mData, 0, true);
110
111        return mField;
112    }
113}
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