1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
| /*
| * Copyright (C) 2007 The Android Open Source Project
| *
| * Licensed under the Apache License, Version 2.0 (the "License");
| * you may not use this file except in compliance with the License.
| * You may obtain a copy of the License at
| *
| * http://www.apache.org/licenses/LICENSE-2.0
| *
| * Unless required by applicable law or agreed to in writing, software
| * distributed under the License is distributed on an "AS IS" BASIS,
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
| * See the License for the specific language governing permissions and
| * limitations under the License.
| */
|
| package com.DeviceTest.view;
|
| import java.nio.ByteBuffer;
| import java.nio.ByteOrder;
| import java.nio.IntBuffer;
|
| import javax.microedition.khronos.opengles.GL10;
|
| /**
| * A vertex shaded cube.
| */
| class Cube
| {
| public Cube()
| {
| int one = 0x10000;
| int vertices[] = {
| -one, -one, -one,
| one, -one, -one,
| one, one, -one,
| -one, one, -one,
| -one, -one, one,
| one, -one, one,
| one, one, one,
| -one, one, one,
| };
|
| int colors[] = {
| 0, 0, 0, one,
| one, 0, 0, one,
| one, one, 0, one,
| 0, one, 0, one,
| 0, 0, one, one,
| one, 0, one, one,
| one, one, one, one,
| 0, one, one, one,
| };
|
| byte indices[] = {
| 0, 4, 5, 0, 5, 1,
| 1, 5, 6, 1, 6, 2,
| 2, 6, 7, 2, 7, 3,
| 3, 7, 4, 3, 4, 0,
| 4, 7, 6, 4, 6, 5,
| 3, 0, 1, 3, 1, 2
| };
|
| // Buffers to be passed to gl*Pointer() functions
| // must be direct, i.e., they must be placed on the
| // native heap where the garbage collector cannot
| // move them.
| //
| // Buffers with multi-byte datatypes (e.g., short, int, float)
| // must have their byte order set to native order
|
| ByteBuffer vbb = ByteBuffer.allocateDirect(vertices.length*4);
| vbb.order(ByteOrder.nativeOrder());
| mVertexBuffer = vbb.asIntBuffer();
| mVertexBuffer.put(vertices);
| mVertexBuffer.position(0);
|
| ByteBuffer cbb = ByteBuffer.allocateDirect(colors.length*4);
| cbb.order(ByteOrder.nativeOrder());
| mColorBuffer = cbb.asIntBuffer();
| mColorBuffer.put(colors);
| mColorBuffer.position(0);
|
| mIndexBuffer = ByteBuffer.allocateDirect(indices.length);
| mIndexBuffer.put(indices);
| mIndexBuffer.position(0);
| }
|
| public void draw(GL10 gl)
| {
| gl.glFrontFace(GL10.GL_CW);
| gl.glVertexPointer(3, GL10.GL_FIXED, 0, mVertexBuffer);
| gl.glColorPointer(4, GL10.GL_FIXED, 0, mColorBuffer);
| gl.glDrawElements(GL10.GL_TRIANGLES, 36, GL10.GL_UNSIGNED_BYTE, mIndexBuffer);
| }
|
| private IntBuffer mVertexBuffer;
| private IntBuffer mColorBuffer;
| private ByteBuffer mIndexBuffer;
| }
|
|
