gfx/gl/GLContextGLX.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 GLCONTEXTGLX_H_
   8 #define GLCONTEXTGLX_H_
   9
  10 #include "GLContext.h"
  11 #include "GLXLibrary.h"
  12 #include "mozilla/X11Util.h"
  13
  14 class gfxXlibSurface;
  15
  16 namespace mozilla {
  17 namespace gl {
  18
  19 class GLContextGLX : public GLContext {
  20  public:
  21   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextGLX, override)
  22   static already_AddRefed<GLContextGLX> CreateGLContext(
  23       const GLContextDesc&, std::shared_ptr<gfx::XlibDisplay> display,
  24       GLXDrawable drawable, GLXFBConfig cfg, bool deleteDrawable,
  25       gfxXlibSurface* pixmap);
  26
  27   static bool FindVisual(Display* display, int screen, bool useWebRender,
  28                          bool useAlpha, int* const out_visualId);
  29
  30   // Finds a GLXFBConfig compatible with the provided window.
  31   static bool FindFBConfigForWindow(
  32       Display* display, int screen, Window window,
  33       ScopedXFree<GLXFBConfig>* const out_scopedConfigArr,
  34       GLXFBConfig* const out_config, int* const out_visid, bool aWebRender);
  35
  36   virtual ~GLContextGLX();
  37
  38   GLContextType GetContextType() const override { return GLContextType::GLX; }
  39
  40   static GLContextGLX* Cast(GLContext* gl) {
  41     MOZ_ASSERT(gl->GetContextType() == GLContextType::GLX);
  42     return static_cast<GLContextGLX*>(gl);
  43   }
  44
  45   bool Init() override;
  46
  47   bool MakeCurrentImpl() const override;
  48
  49   bool IsCurrentImpl() const override;
  50
  51   Maybe<SymbolLoader> GetSymbolLoader() const override;
  52
  53   bool IsDoubleBuffered() const override;
  54
  55   bool SwapBuffers() override;
  56
  57   GLint GetBufferAge() const override;
  58
  59   void GetWSIInfo(nsCString* const out) const override;
  60
  61   // Overrides the current GLXDrawable backing the context and makes the
  62   // context current.
  63   bool OverrideDrawable(GLXDrawable drawable);
  64
  65   // Undoes the effect of a drawable override.
  66   bool RestoreDrawable();
  67
  68  private:
  69   friend class GLContextProviderGLX;
  70
  71   GLContextGLX(const GLContextDesc&, std::shared_ptr<gfx::XlibDisplay> aDisplay,
  72                GLXDrawable aDrawable, GLXContext aContext, bool aDeleteDrawable,
  73                bool aDoubleBuffered, gfxXlibSurface* aPixmap);
  74
  75   const GLXContext mContext;
  76   const std::shared_ptr<gfx::XlibDisplay> mDisplay;
  77   const GLXDrawable mDrawable;
  78   const bool mDeleteDrawable;
  79   const bool mDoubleBuffered;
  80
  81   GLXLibrary* const mGLX;
  82
  83   const RefPtr<gfxXlibSurface> mPixmap;
  84   const bool mOwnsContext = true;
  85 };
  86
  87 }  // namespace gl
  88 }  // namespace mozilla
  89
  90 #endif  // GLCONTEXTGLX_H_