1 //
2 // Copyright 2020 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6 
7 // EGL_KHR_reusable_sync
8 
9 #ifndef LIBANGLE_RENDERER_EGLREUSABLESYNC_H_
10 #define LIBANGLE_RENDERER_EGLREUSABLESYNC_H_
11 
12 #include "libANGLE/AttributeMap.h"
13 #include "libANGLE/renderer/EGLSyncImpl.h"
14 
15 #include "common/angleutils.h"
16 
17 #include <condition_variable>
18 
19 namespace rx
20 {
21 
22 class ReusableSync final : public EGLSyncImpl
23 {
24   public:
25     ReusableSync(const egl::AttributeMap &attribs);
26     ~ReusableSync() override;
27 
28     void onDestroy(const egl::Display *display) override;
29 
30     egl::Error initialize(const egl::Display *display,
31                           const gl::Context *context,
32                           EGLenum type) override;
33     egl::Error clientWait(const egl::Display *display,
34                           const gl::Context *context,
35                           EGLint flags,
36                           EGLTime timeout,
37                           EGLint *outResult) override;
38     egl::Error serverWait(const egl::Display *display,
39                           const gl::Context *context,
40                           EGLint flags) override;
41     egl::Error signal(const egl::Display *display,
42                       const gl::Context *context,
43                       EGLint mode) override;
44     egl::Error getStatus(const egl::Display *display, EGLint *outStatus) override;
45 
46   private:
47     EGLint mStatus;
48     std::condition_variable mCondVar;
49     std::unique_lock<std::mutex> mMutex;
50 };
51 
52 }  // namespace rx
53 
54 #endif  // LIBANGLE_RENDERER_EGLREUSABLESYNC_H_
55