62 lines
1.6 KiB
C++
Executable file
62 lines
1.6 KiB
C++
Executable file
// 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
|