1 /*
2 * Copyright (C) 2025 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 "gl_utils.h"
17
18 #include <cmath>
19 #include <string>
20 #include <cstdlib>
21
CreateTexture2D(int width,int height,int levels,GLenum internalFormat)22 GLuint GLUtils::CreateTexture2D(int width, int height, int levels, GLenum internalFormat)
23 {
24 GLuint textureId = 0;
25 glGenTextures(1, &textureId);
26 glBindTexture(GL_TEXTURE_2D, textureId);
27 glTexStorage2D(GL_TEXTURE_2D, levels, internalFormat, width, height);
28 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
29 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
30 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
31 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
32 glBindTexture(GL_TEXTURE_2D, GL_NONE);
33 return textureId;
34 }
35
DeleteTexture(unsigned int textureId)36 void GLUtils::DeleteTexture(unsigned int textureId)
37 {
38 if (textureId == 0) {
39 return;
40 }
41 glDeleteTextures(1, &textureId);
42 }