1 /*
2  * Copyright (C) 2023 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 #ifndef OHOS_RENDER_3D_OFFSCREEN_CONTEXT_HELPER_H
17 #define OHOS_RENDER_3D_OFFSCREEN_CONTEXT_HELPER_H
18 
19 #include <EGL/egl.h>
20 #include <GLES/gl.h>
21 
22 namespace OHOS::Render3D {
23 class AutoRestore final {
24 public:
25     AutoRestore();
26     ~AutoRestore();
27 private:
28     EGLContext c_ = EGL_NO_CONTEXT;
29     EGLSurface ws_ = EGL_NO_SURFACE;
30     EGLSurface rs_ = EGL_NO_SURFACE;
31     EGLDisplay d_ = EGL_NO_DISPLAY;
32 };
33 
34 class OffScreenContextHelper final {
35 public:
36     OffScreenContextHelper() = default;
37     ~OffScreenContextHelper();
38     EGLContext CreateOffScreenContext(EGLContext eglContext);
39     EGLContext GetOffScreenContext();
40     void BindOffScreenContext();
41     void DestroyOffScreenContext();
42 
43 private:
44     EGLDisplay eglDisplay_ = EGL_NO_DISPLAY;
45     EGLContext localThreadContext_ = EGL_NO_CONTEXT;
46     EGLSurface pBufferSurface_ = EGL_NO_SURFACE;
47 };
48 } // namespace OHOS::Render3D
49 #endif // OHOS_RENDER_3D_OFFSCREEN_CONTEXT_H
50