Refactoring and cleanup of GLInterface (now GLContext)

Source/Core/Common/GL/GLContext.h

@@ -0,0 +1,64 @@
+// Copyright 2008 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+#include <string>
+
+#include "Common/CommonTypes.h"
+
+class GLContext
+{
+public:
+  enum class Mode
+  {
+    Detect,
+    OpenGL,
+    OpenGLES
+  };
+
+  virtual ~GLContext();
+
+  Mode GetMode() { return m_opengl_mode; }
+  bool IsGLES() const { return m_opengl_mode == Mode::OpenGLES; }
+
+  u32 GetBackBufferWidth() { return m_backbuffer_width; }
+  u32 GetBackBufferHeight() { return m_backbuffer_height; }
+  void SetBackBufferDimensions(u32 w, u32 h);
+
+  virtual bool IsHeadless() const;
+
+  virtual std::unique_ptr<GLContext> CreateSharedContext();
+  virtual void Shutdown();
+
+  virtual bool MakeCurrent();
+  virtual bool ClearCurrent();
+
+  virtual void Update();
+  virtual void UpdateSurface(void* window_handle);
+
+  virtual void Swap();
+  virtual void SwapInterval(int interval);
+
+  virtual void* GetFuncAddress(const std::string& name);
+
+  // Creates an instance of GLInterface specific to the platform we are running on.
+  static std::unique_ptr<GLContext> Create(void* window_handle, bool stereo = false,
+                                           bool core = true);
+
+protected:
+  virtual bool Initialize(void* window_handle, bool stereo, bool core);
+  virtual bool Initialize(GLContext* main_context);
+
+  Mode m_opengl_mode = Mode::Detect;
+
+  // Window dimensions.
+  u32 m_backbuffer_width = 0;
+  u32 m_backbuffer_height = 0;
+  bool m_is_core_context = false;
+  bool m_is_shared = false;
+};
+
+extern std::unique_ptr<GLContext> g_main_gl_context;