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-rw-r--r--src/core/frontend/emu_window.h48
1 files changed, 3 insertions, 45 deletions
diff --git a/src/core/frontend/emu_window.h b/src/core/frontend/emu_window.h
index 1093800f6..a72df034e 100644
--- a/src/core/frontend/emu_window.h
+++ b/src/core/frontend/emu_window.h
@@ -5,11 +5,14 @@
5 5
6#include <memory> 6#include <memory>
7#include <utility> 7#include <utility>
8
8#include "common/common_types.h" 9#include "common/common_types.h"
9#include "core/frontend/framebuffer_layout.h" 10#include "core/frontend/framebuffer_layout.h"
10 11
11namespace Core::Frontend { 12namespace Core::Frontend {
12 13
14class GraphicsContext;
15
13/// Information for the Graphics Backends signifying what type of screen pointer is in 16/// Information for the Graphics Backends signifying what type of screen pointer is in
14/// WindowInformation 17/// WindowInformation
15enum class WindowSystemType { 18enum class WindowSystemType {
@@ -22,51 +25,6 @@ enum class WindowSystemType {
22}; 25};
23 26
24/** 27/**
25 * Represents a drawing context that supports graphics operations.
26 */
27class GraphicsContext {
28public:
29 virtual ~GraphicsContext();
30
31 /// Inform the driver to swap the front/back buffers and present the current image
32 virtual void SwapBuffers() {}
33
34 /// Makes the graphics context current for the caller thread
35 virtual void MakeCurrent() {}
36
37 /// Releases (dunno if this is the "right" word) the context from the caller thread
38 virtual void DoneCurrent() {}
39
40 class Scoped {
41 public:
42 [[nodiscard]] explicit Scoped(GraphicsContext& context_) : context(context_) {
43 context.MakeCurrent();
44 }
45 ~Scoped() {
46 if (active) {
47 context.DoneCurrent();
48 }
49 }
50
51 /// In the event that context was destroyed before the Scoped is destroyed, this provides a
52 /// mechanism to prevent calling a destroyed object's method during the deconstructor
53 void Cancel() {
54 active = false;
55 }
56
57 private:
58 GraphicsContext& context;
59 bool active{true};
60 };
61
62 /// Calls MakeCurrent on the context and calls DoneCurrent when the scope for the returned value
63 /// ends
64 [[nodiscard]] Scoped Acquire() {
65 return Scoped{*this};
66 }
67};
68
69/**
70 * Abstraction class used to provide an interface between emulation code and the frontend 28 * Abstraction class used to provide an interface between emulation code and the frontend
71 * (e.g. SDL, QGLWidget, GLFW, etc...). 29 * (e.g. SDL, QGLWidget, GLFW, etc...).
72 * 30 *