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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 */
#include "GLContext.h"
#include "OpenGL/OpenGL.h"
#ifdef __OBJC__
# include <AppKit/NSOpenGL.h>
typedef void NSOpenGLContext;
#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;
GLContextCGL(const GLContextDesc&, NSOpenGLContext* context);
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