blob: 7554c15833b7554ea38ff20212eb4b10111dcccf (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <memory>
#include "common/dynamic_library.h"
namespace Core::Frontend {
/**
* Represents a drawing context that supports graphics operations.
*/
class GraphicsContext {
public:
virtual ~GraphicsContext() = default;
/// Inform the driver to swap the front/back buffers and present the current image
virtual void SwapBuffers() {}
/// Makes the graphics context current for the caller thread
virtual void MakeCurrent() {}
/// Releases (dunno if this is the "right" word) the context from the caller thread
virtual void DoneCurrent() {}
/// Gets the GPU driver library (used by Android only)
virtual std::shared_ptr<Common::DynamicLibrary> GetDriverLibrary() {
return {};
}
class Scoped {
public:
[[nodiscard]] explicit Scoped(GraphicsContext& context_) : context(context_) {
context.MakeCurrent();
}
~Scoped() {
if (active) {
context.DoneCurrent();
}
}
/// In the event that context was destroyed before the Scoped is destroyed, this provides a
/// mechanism to prevent calling a destroyed object's method during the deconstructor
void Cancel() {
active = false;
}
private:
GraphicsContext& context;
bool active{true};
};
/// Calls MakeCurrent on the context and calls DoneCurrent when the scope for the returned value
/// ends
[[nodiscard]] Scoped Acquire() {
return Scoped{*this};
}
};
} // namespace Core::Frontend
|
