1 /*
2 * Copyright 2020 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
17 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
18
19 #include "GLVertexBuffer.h"
20
21 #include <GLES/gl.h>
22 #include <GLES2/gl2.h>
23 #include <nativebase/nativebase.h>
24 #include <utils/Trace.h>
25
26 namespace android {
27 namespace renderengine {
28 namespace gl {
29
GLVertexBuffer()30 GLVertexBuffer::GLVertexBuffer() {
31 glGenBuffers(1, &mBufferName);
32 }
33
~GLVertexBuffer()34 GLVertexBuffer::~GLVertexBuffer() {
35 glDeleteBuffers(1, &mBufferName);
36 }
37
allocateBuffers(const GLfloat data[],const GLuint size)38 void GLVertexBuffer::allocateBuffers(const GLfloat data[], const GLuint size) {
39 ATRACE_CALL();
40 bind();
41 glBufferData(GL_ARRAY_BUFFER, size * sizeof(GLfloat), data, GL_STATIC_DRAW);
42 unbind();
43 }
44
bind() const45 void GLVertexBuffer::bind() const {
46 glBindBuffer(GL_ARRAY_BUFFER, mBufferName);
47 }
48
unbind() const49 void GLVertexBuffer::unbind() const {
50 glBindBuffer(GL_ARRAY_BUFFER, 0);
51 }
52
53 } // namespace gl
54 } // namespace renderengine
55 } // namespace android
56