• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 // Copyright 2021 The Dawn Authors
2 //
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 #ifndef DAWNNATIVE_XLIBXCBFUNCTIONS_H_
16 #define DAWNNATIVE_XLIBXCBFUNCTIONS_H_
17 
18 #include "common/DynamicLib.h"
19 #include "dawn_native/Error.h"
20 
21 #include "common/xlib_with_undefs.h"
22 
23 class DynamicLib;
24 
25 namespace dawn_native {
26 
27     // A helper class that dynamically loads the x11-xcb library that contains XGetXCBConnection
28     // (and nothing else). This has to be dynamic because this libraries isn't present on all Linux
29     // deployment platforms that Chromium targets.
30     class XlibXcbFunctions {
31       public:
32         XlibXcbFunctions();
33         ~XlibXcbFunctions();
34 
35         bool IsLoaded() const;
36 
37         // Functions from x11-xcb
38         decltype(&::XGetXCBConnection) xGetXCBConnection = nullptr;
39 
40       private:
41         DynamicLib mLib;
42     };
43 
44 }  // namespace dawn_native
45 
46 #endif  // DAWNNATIVE_XLIBXCBFUNCTIONS_H_
47