1 /*
2  * Copyright (C) 2021 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 #pragma once
18 
19 #include <string>
20 
21 #include <EGL/egl.h>
22 #include <EGL/eglext.h>
23 
24 #include "EglFuncs.h"
25 #include "Lib.h"
26 #include "Expected.h"
27 
28 namespace gfxstream {
29 
30 class Egl {
31   public:
32     static gfxstream::expected<Egl, std::string> Load();
33 
34     Egl(const Egl&) = delete;
35     Egl& operator=(const Egl&) = delete;
36 
37     Egl(Egl&&) = default;
38     Egl& operator=(Egl&&) = default;
39 
40   #define DECLARE_EGL_FUNCTION_MEMBER_POINTER(return_type, function_name, \
41                                               signature)                  \
42     return_type(EGLAPIENTRY* function_name) signature = nullptr;
43 
44     FOR_EACH_EGL_FUNCTION(DECLARE_EGL_FUNCTION_MEMBER_POINTER);
45 
46   private:
47     Egl() = default;
48 
49     gfxstream::expected<Ok, std::string> Init();
50 
51     Lib mLib;
52 };
53 
54 }  // namespace gfxstream
55