GLContext: Rename to OpenGLContext

src/util/opengl_context_wgl.h

@@ -0,0 +1,56 @@
+// SPDX-FileCopyrightText: 2019-2024 Connor McLaughlin <stenzek@gmail.com>
+// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
+
+#pragma once
+
+#include "opengl_context.h"
+#include "opengl_loader.h"
+
+#include "common/windows_headers.h"
+
+#include "glad/wgl.h"
+
+#include <optional>
+
+class OpenGLContextWGL final : public OpenGLContext
+{
+public:
+  OpenGLContextWGL(const WindowInfo& wi);
+  ~OpenGLContextWGL() override;
+
+  static std::unique_ptr<OpenGLContext> Create(const WindowInfo& wi, std::span<const Version> versions_to_try,
+                                               Error* error);
+
+  void* GetProcAddress(const char* name) override;
+  bool ChangeSurface(const WindowInfo& new_wi) override;
+  void ResizeSurface(u32 new_surface_width = 0, u32 new_surface_height = 0) override;
+  bool SwapBuffers() override;
+  bool IsCurrent() override;
+  bool MakeCurrent() override;
+  bool DoneCurrent() override;
+  bool SetSwapInterval(s32 interval) override;
+  std::unique_ptr<OpenGLContext> CreateSharedContext(const WindowInfo& wi, Error* error) override;
+
+private:
+  ALWAYS_INLINE HWND GetHWND() const { return static_cast<HWND>(m_wi.window_handle); }
+
+  HDC GetDCAndSetPixelFormat(HWND hwnd, Error* error);
+
+  bool Initialize(std::span<const Version> versions_to_try, Error* error);
+  bool InitializeDC(Error* error);
+  void ReleaseDC();
+  bool CreatePBuffer(Error* error);
+  bool CreateAnyContext(HGLRC share_context, bool make_current, Error* error);
+  bool CreateVersionContext(const Version& version, HGLRC share_context, bool make_current, Error* error);
+
+  HDC m_dc = {};
+  HGLRC m_rc = {};
+
+  // Can't change pixel format once it's set for a RC.
+  std::optional<int> m_pixel_format;
+
+  // Dummy window for creating a PBuffer off when we're surfaceless.
+  HWND m_dummy_window = {};
+  HDC m_dummy_dc = {};
+  HPBUFFERARB m_pbuffer = {};
+};