tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

GLContextGLX.h (2781B)

      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 namespace mozilla {
     15 namespace gl {
     16 
     17 class GLContextGLX : public GLContext {
     18 public:
     19  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextGLX, override)
     20  static already_AddRefed<GLContextGLX> CreateGLContext(
     21      const GLContextDesc&, std::shared_ptr<gfx::XlibDisplay> display,
     22      GLXDrawable drawable, GLXFBConfig cfg, Drawable ownedPixmap = X11None);
     23 
     24  static bool FindVisual(Display* display, int screen, int* const out_visualId);
     25 
     26  // Finds a GLXFBConfig compatible with the provided window.
     27  static bool FindFBConfigForWindow(Display* display, int screen, Window window,
     28                                    GLXFBConfig* const out_config,
     29                                    int* const out_visid, bool aWebRender);
     30 
     31  virtual ~GLContextGLX();
     32 
     33  GLContextType GetContextType() const override { return GLContextType::GLX; }
     34 
     35  static GLContextGLX* Cast(GLContext* gl) {
     36    MOZ_ASSERT(gl->GetContextType() == GLContextType::GLX);
     37    return static_cast<GLContextGLX*>(gl);
     38  }
     39 
     40  bool Init() override;
     41 
     42  bool MakeCurrentImpl() const override;
     43 
     44  bool IsCurrentImpl() const override;
     45 
     46  Maybe<SymbolLoader> GetSymbolLoader() const override;
     47 
     48  bool IsDoubleBuffered() const override;
     49 
     50  bool SwapBuffers() override;
     51 
     52  GLint GetBufferAge() const override;
     53 
     54  void GetWSIInfo(nsCString* const out) const override;
     55 
     56  // Overrides the current GLXDrawable backing the context and makes the
     57  // context current.
     58  bool OverrideDrawable(GLXDrawable drawable);
     59 
     60  // Undoes the effect of a drawable override.
     61  bool RestoreDrawable();
     62 
     63 private:
     64  friend class GLContextProviderGLX;
     65 
     66  GLContextGLX(const GLContextDesc&, std::shared_ptr<gfx::XlibDisplay> aDisplay,
     67               GLXDrawable aDrawable, GLXContext aContext, bool aDoubleBuffered,
     68               Drawable aOwnedPixmap = X11None);
     69 
     70  const GLXContext mContext;
     71  const std::shared_ptr<gfx::XlibDisplay> mDisplay;
     72  const GLXDrawable mDrawable;
     73  // The X pixmap associated with the GLX pixmap. If this is provided, then this
     74  // class assumes responsibility for freeing both. Otherwise, the user of this
     75  // class is responsibility for freeing the drawables.
     76  const Drawable mOwnedPixmap;
     77  const bool mDoubleBuffered;
     78 
     79  GLXLibrary* const mGLX;
     80 
     81  const bool mOwnsContext = true;
     82 };
     83 
     84 }  // namespace gl
     85 }  // namespace mozilla
     86 
     87 #endif  // GLCONTEXTGLX_H_