[desktop] More qt_common reorganization (#3916)

Ported from QML branch.

Main "big" change is that EmuThread is now a shared state in QtCommon,
not individually managed/passed around by GRenderWindow and MainWindow.

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3916
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

2 files changed, 14 insertions, 0 deletions

diff --git a/src/common/settings.cpp b/src/common/settings.cpp
index 54848c4dd1..61f9acb1e7 100644
--- a/src/common/settings.cpp
+++ b/src/common/settings.cpp
@@ -435,4 +435,16 @@ void ToggleSlowMode() {
         SetSpeedMode(SpeedMode::Standard);
 }
 
+bool IsOpenGL() {
+    const auto backend = Settings::values.renderer_backend.GetValue();
+    switch (backend) {
+    case RendererBackend::OpenGL_GLSL:
+    case RendererBackend::OpenGL_GLASM:
+    case RendererBackend::OpenGL_SPIRV:
+        return true;
+    default:
+        return false;
+    }
+}
+
 } // namespace Settings
diff --git a/src/common/settings.h b/src/common/settings.h
index e10f5105a1..e8877fce1e 100644
--- a/src/common/settings.h
+++ b/src/common/settings.h
@@ -863,6 +863,8 @@ bool IsFastmemEnabled();
 void SetNceEnabled(bool is_64bit);
 bool IsNceEnabled();
 
+bool IsOpenGL();
+
 bool IsDockedMode();
 
 float Volume();