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The Tor Browser
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GLContextCGL.h (2217B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef GLCONTEXTCGL_H_
      8 #define GLCONTEXTCGL_H_
      9 
     10 #include "GLContext.h"
     11 
     12 #include "OpenGL/OpenGL.h"
     13 
     14 #ifdef __OBJC__
     15 #  include <AppKit/NSOpenGL.h>
     16 #else
     17 typedef void NSOpenGLContext;
     18 #endif
     19 
     20 #include <CoreGraphics/CGDisplayConfiguration.h>
     21 
     22 #include "mozilla/Atomics.h"
     23 
     24 class nsIWidget;
     25 
     26 namespace mozilla {
     27 namespace gl {
     28 
     29 class GLContextCGL : public GLContext {
     30  friend class GLContextProviderCGL;
     31 
     32  NSOpenGLContext* mContext;
     33 
     34  mozilla::Atomic<bool> mActiveGPUSwitchMayHaveOccurred;
     35 
     36 public:
     37  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextCGL, override)
     38  GLContextCGL(const GLContextDesc&, NSOpenGLContext* context);
     39 
     40  ~GLContextCGL();
     41 
     42  virtual GLContextType GetContextType() const override {
     43    return GLContextType::CGL;
     44  }
     45 
     46  static GLContextCGL* Cast(GLContext* gl) {
     47    MOZ_ASSERT(gl->GetContextType() == GLContextType::CGL);
     48    return static_cast<GLContextCGL*>(gl);
     49  }
     50 
     51  NSOpenGLContext* GetNSOpenGLContext() const { return mContext; }
     52  CGLContextObj GetCGLContext() const;
     53 
     54  // Can be called on any thread
     55  static void DisplayReconfigurationCallback(CGDirectDisplayID aDisplay,
     56                                             CGDisplayChangeSummaryFlags aFlags,
     57                                             void* aUserInfo);
     58 
     59  // Call at the beginning of a frame, on contexts that should stay on the
     60  // active GPU. This method will migrate the context to the new active GPU, if
     61  // the active GPU has changed since the last call.
     62  void MigrateToActiveGPU();
     63 
     64  virtual bool MakeCurrentImpl() const override;
     65 
     66  virtual bool IsCurrentImpl() const override;
     67 
     68  virtual GLenum GetPreferredARGB32Format() const override;
     69 
     70  virtual bool SwapBuffers() override;
     71 
     72  virtual void GetWSIInfo(nsCString* const out) const override;
     73 
     74  Maybe<SymbolLoader> GetSymbolLoader() const override;
     75 };
     76 
     77 }  // namespace gl
     78 }  // namespace mozilla
     79 
     80 #endif  // GLCONTEXTCGL_H_