android: Move PollEvents to OpenGL window

* Vulkan does not need this and it causes problems

src/android/app/src/main/jni/emu_window/emu_window.cpp

@@ -82,20 +82,6 @@ EmuWindow_Android::~EmuWindow_Android() {
     DestroyContext();
 }
 
-void EmuWindow_Android::PollEvents() {
-    if (!render_window) {
-        return;
-    }
-
-    host_window = render_window;
-    render_window = nullptr;
-
-    DestroyWindowSurface();
-    CreateWindowSurface();
-    OnFramebufferSizeChanged();
-    presenting_state = PresentingState::Initial;
-}
-
 void EmuWindow_Android::MakeCurrent() {
     core_context->MakeCurrent();
 }

src/android/app/src/main/jni/emu_window/emu_window.h

@@ -21,15 +21,13 @@ public:
     /// Handles movement of touch pointer
     void OnTouchMoved(int x, int y);
 
-    void PollEvents() override;
-
     void MakeCurrent() override;
 
     void DoneCurrent() override;
 
-    virtual void TryPresenting() = 0;
+    virtual void TryPresenting() {}
 
-    virtual void StopPresenting() = 0;
+    virtual void StopPresenting() {}
 
 protected:
     void OnFramebufferSizeChanged();
@@ -53,11 +51,4 @@ protected:
     int window_height{};
 
     std::unique_ptr<Frontend::GraphicsContext> core_context;
-
-    enum class PresentingState {
-        Initial,
-        Running,
-        Stopped,
-    };
-    PresentingState presenting_state{};
 };

src/android/app/src/main/jni/emu_window/emu_window_gl.cpp

@@ -177,6 +177,20 @@ std::unique_ptr<Frontend::GraphicsContext> EmuWindow_Android_OpenGL::CreateShare
     return std::make_unique<SharedContext_Android>(egl_display, egl_config, egl_context);
 }
 
+void EmuWindow_Android_OpenGL::PollEvents() {
+    if (!render_window) {
+        return;
+    }
+
+    host_window = render_window;
+    render_window = nullptr;
+
+    DestroyWindowSurface();
+    CreateWindowSurface();
+    OnFramebufferSizeChanged();
+    presenting_state = PresentingState::Initial;
+}
+
 void EmuWindow_Android_OpenGL::StopPresenting() {
     if (presenting_state == PresentingState::Running) {
         eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);

src/android/app/src/main/jni/emu_window/emu_window_gl.h

@@ -20,6 +20,7 @@ public:
 
     void TryPresenting() override;
     void StopPresenting() override;
+    void PollEvents() override;
 
     std::unique_ptr<GraphicsContext> CreateSharedContext() const override;
 
@@ -33,4 +34,11 @@ private:
     EGLSurface egl_surface{};
     EGLContext egl_context{};
     EGLDisplay egl_display{};
+
+    enum class PresentingState {
+        Initial,
+        Running,
+        Stopped,
+    };
+    PresentingState presenting_state{};
 };

src/android/app/src/main/jni/emu_window/emu_window_vk.cpp

@@ -51,13 +51,3 @@ bool EmuWindow_Android_Vulkan::CreateWindowSurface() {
 std::unique_ptr<Frontend::GraphicsContext> EmuWindow_Android_Vulkan::CreateSharedContext() const {
     return std::make_unique<GraphicsContext_Android>(driver_library);
 }
-
-void EmuWindow_Android_Vulkan::StopPresenting() {
-    presenting_state = PresentingState::Stopped;
-}
-
-void EmuWindow_Android_Vulkan::TryPresenting() {
-    if (presenting_state == PresentingState::Initial) {
-        presenting_state = PresentingState::Running;
-    }
-}

src/android/app/src/main/jni/emu_window/emu_window_vk.h

@@ -14,8 +14,7 @@ public:
                              std::shared_ptr<Common::DynamicLibrary> driver_library);
     ~EmuWindow_Android_Vulkan() override = default;
 
-    void TryPresenting() override;
+    void PollEvents() override {}
-    void StopPresenting() override;
 
     std::unique_ptr<GraphicsContext> CreateSharedContext() const override;