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context.h
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef FLUTTER_SHELL_PLATFORM_WINDOWS_EGL_CONTEXT_H_
6 #define FLUTTER_SHELL_PLATFORM_WINDOWS_EGL_CONTEXT_H_
7
8 #include <EGL/egl.h>
9
10 #include "flutter/fml/macros.h"
11
12 namespace flutter {
13 namespace egl {
14
15 // An EGL context to interact with OpenGL.
16 //
17 // This enables automatic error logging and mocking.
18 //
19 // Flutter Windows uses this to create render and resource contexts.
20 class Context {
21 public:
22 Context(EGLDisplay display, EGLContext context);
23 ~Context();
24
25 // Check if this context is currently bound to the thread.
26 virtual bool IsCurrent() const;
27
28 // Bind the context to the thread without any read or draw surfaces.
29 //
30 // Returns true on success.
31 virtual bool MakeCurrent() const;
32
33 // Unbind any context and surfaces from the thread.
34 //
35 // Returns true on success.
36 virtual bool ClearCurrent() const;
37
38 // Get the raw EGL context.
39 virtual const EGLContext& GetHandle() const;
40
41 private:
42 EGLDisplay display_ = EGL_NO_DISPLAY;
43 EGLContext context_ = EGL_NO_CONTEXT;
44
45 FML_DISALLOW_COPY_AND_ASSIGN(Context);
46 };
47
48 } // namespace egl
49 } // namespace flutter
50
51 #endif // FLUTTER_SHELL_PLATFORM_WINDOWS_EGL_CONTEXT_H_
flutter::egl::Context
Definition: context.h:20
flutter::egl::Context::GetHandle
virtual const EGLContext & GetHandle() const
Definition: context.cc:51
flutter::egl::Context::Context
Context(EGLDisplay display, EGLContext context)
Definition: context.cc:12
flutter::egl::Context::IsCurrent
virtual bool IsCurrent() const
Definition: context.cc:25
flutter::egl::Context::~Context
~Context()
Definition: context.cc:15
flutter::egl::Context::MakeCurrent
virtual bool MakeCurrent() const
Definition: context.cc:29
flutter::egl::Context::ClearCurrent
virtual bool ClearCurrent() const
Definition: context.cc:40
flutter
Definition: accessibility_bridge_windows.cc:11