gfx/gl/GLContextEAGL.h

   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 GLCONTEXTEAGL_H_
   8 #define GLCONTEXTEAGL_H_
   9
  10 #include "GLContext.h"
  11
  12 #include <CoreGraphics/CoreGraphics.h>
  13 #include <OpenGLES/EAGL.h>
  14
  15 namespace mozilla {
  16 namespace gl {
  17
  18 class GLContextEAGL : public GLContext {
  19   friend class GLContextProviderEAGL;
  20
  21   EAGLContext* const mContext;
  22
  23  public:
  24   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextEAGL, override)
  25   GLContextEAGL(const GLContextDesc&, EAGLContext* context,
  26                 GLContext* sharedContext, ContextProfile profile);
  27
  28   ~GLContextEAGL();
  29
  30   virtual GLContextType GetContextType() const override {
  31     return GLContextType::EAGL;
  32   }
  33
  34   static GLContextEAGL* Cast(GLContext* gl) {
  35     MOZ_ASSERT(gl->GetContextType() == GLContextType::EAGL);
  36     return static_cast<GLContextEAGL*>(gl);
  37   }
  38
  39   bool AttachToWindow(nsIWidget* aWidget);
  40
  41   EAGLContext* GetEAGLContext() const { return mContext; }
  42
  43   virtual bool MakeCurrentImpl() const override;
  44
  45   virtual bool IsCurrentImpl() const override;
  46
  47   Maybe<SymbolLoader> GetSymbolLoader() const override;
  48
  49   virtual bool IsDoubleBuffered() const override;
  50
  51   virtual bool SwapBuffers() override;
  52
  53   virtual void GetWSIInfo(nsCString* const out) const override;
  54
  55   virtual GLuint GetDefaultFramebuffer() override { return mBackbufferFB; }
  56
  57   virtual bool RenewSurface(nsIWidget* aWidget) override {
  58     // FIXME: should use the passed widget instead of the existing one.
  59     return RecreateRB();
  60   }
  61
  62  private:
  63   GLuint mBackbufferRB = 0;
  64   GLuint mBackbufferFB = 0;
  65
  66   void* mLayer = nullptr;
  67
  68   bool RecreateRB();
  69 };
  70
  71 }  // namespace gl
  72 }  // namespace mozilla
  73
  74 #endif  // GLCONTEXTEAGL_H_