GLContextCGL.h - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef GLCONTEXTCGL_H_

#define GLCONTEXTCGL_H_

#include "GLContext.h"

#include "OpenGL/OpenGL.h"

#ifdef __OBJC__

#  include <AppKit/NSOpenGL.h>

#else

typedef void NSOpenGLContext;

#endif

#include <CoreGraphics/CGDisplayConfiguration.h>

#include "mozilla/Atomics.h"

class nsIWidget;

namespace mozilla {

namespace gl {

class GLContextCGL : public GLContext {

  friend class GLContextProviderCGL;

  NSOpenGLContext* mContext;

  mozilla::Atomic<bool> mActiveGPUSwitchMayHaveOccurred;

 public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextCGL, override)

  GLContextCGL(const GLContextDesc&, NSOpenGLContext* context);

  ~GLContextCGL();

  virtual GLContextType GetContextType() const override {

    return GLContextType::CGL;

  static GLContextCGL* Cast(GLContext* gl) {

    MOZ_ASSERT(gl->GetContextType() == GLContextType::CGL);

    return static_cast<GLContextCGL*>(gl);

  NSOpenGLContext* GetNSOpenGLContext() const { return mContext; }

  CGLContextObj GetCGLContext() const;

  // Can be called on any thread

  static void DisplayReconfigurationCallback(CGDirectDisplayID aDisplay,

                                             CGDisplayChangeSummaryFlags aFlags,

                                             void* aUserInfo);

  // Call at the beginning of a frame, on contexts that should stay on the

  // active GPU. This method will migrate the context to the new active GPU, if

  // the active GPU has changed since the last call.

  void MigrateToActiveGPU();

  virtual bool MakeCurrentImpl() const override;

  virtual bool IsCurrentImpl() const override;

  virtual GLenum GetPreferredARGB32Format() const override;

  virtual bool SwapBuffers() override;

  virtual void GetWSIInfo(nsCString* const out) const override;

  Maybe<SymbolLoader> GetSymbolLoader() const override;

};

}  // namespace gl

}  // namespace mozilla

#endif  // GLCONTEXTCGL_H_