1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "mesh.h"
17
18 namespace OHOS {
19 namespace Rosen {
Mesh()20 Mesh::Mesh()
21 {
22 glGenVertexArrays(1, &VAO_);
23 glGenBuffers(1, &VBO_);
24 glGenBuffers(1, &EBO_);
25 }
26
~Mesh()27 Mesh::~Mesh()
28 {
29 Delete();
30 }
31
Use()32 void Mesh::Use()
33 {
34 glBindVertexArray(VAO_);
35
36 glBindBuffer(GL_ARRAY_BUFFER, VBO_);
37 glBufferData(GL_ARRAY_BUFFER, sizeof(VERTICES), VERTICES, GL_STATIC_DRAW);
38
39 glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO_);
40 glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(INDICES), INDICES, GL_STATIC_DRAW);
41
42 glVertexAttribPointer(0, DEFAULT_VERTEX_POINT_SIZE, GL_FLOAT, GL_FALSE, DEFAULT_STRIDE * sizeof(float), (void*)0);
43 glEnableVertexAttribArray(0);
44 // color attribute
45 glVertexAttribPointer(1, DEFAULT_TEXTURE_POINT_SIZE, GL_FLOAT, GL_FALSE,
46 DEFAULT_STRIDE * sizeof(float), (void*)(DEFAULT_OFFSET * sizeof(float)));
47 glEnableVertexAttribArray(1);
48 }
49
Delete()50 void Mesh::Delete()
51 {
52 glDeleteVertexArrays(1, &VAO_);
53 glDeleteBuffers(1, &VBO_);
54 glDeleteBuffers(1, &EBO_);
55 }
56 } // namespcae Rosen
57 } // namespace OHOS