1 files changed, 88 insertions, 0 deletions
diff --git a/gfx/gl/GLContextGLX.h b/gfx/gl/GLContextGLX.h
new file mode 100644
index 0000000000..aa6dd3861c
--- /dev/null
+++ b/gfx/gl/GLContextGLX.h
@@ -0,0 +1,88 @@
+/* -*- 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 http://mozilla.org/MPL/2.0/. */
+
+#ifndef GLCONTEXTGLX_H_
+#define GLCONTEXTGLX_H_
+
+#include "GLContext.h"
+#include "GLXLibrary.h"
+#include "mozilla/X11Util.h"
+
+namespace mozilla {
+namespace gl {
+
+class GLContextGLX : public GLContext {
+ public:
+  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GLContextGLX, override)
+  static already_AddRefed<GLContextGLX> CreateGLContext(
+      const GLContextDesc&, std::shared_ptr<gfx::XlibDisplay> display,
+      GLXDrawable drawable, GLXFBConfig cfg, Drawable ownedPixmap = X11None);
+
+  static bool FindVisual(Display* display, int screen, int* const out_visualId);
+
+  // Finds a GLXFBConfig compatible with the provided window.
+  static bool FindFBConfigForWindow(
+      Display* display, int screen, Window window,
+      ScopedXFree<GLXFBConfig>* const out_scopedConfigArr,
+      GLXFBConfig* const out_config, int* const out_visid, bool aWebRender);
+
+  virtual ~GLContextGLX();
+
+  GLContextType GetContextType() const override { return GLContextType::GLX; }
+
+  static GLContextGLX* Cast(GLContext* gl) {
+    MOZ_ASSERT(gl->GetContextType() == GLContextType::GLX);
+    return static_cast<GLContextGLX*>(gl);
+  }
+
+  bool Init() override;
+
+  bool MakeCurrentImpl() const override;
+
+  bool IsCurrentImpl() const override;
+
+  Maybe<SymbolLoader> GetSymbolLoader() const override;
+
+  bool IsDoubleBuffered() const override;
+
+  bool SwapBuffers() override;
+
+  GLint GetBufferAge() const override;
+
+  void GetWSIInfo(nsCString* const out) const override;
+
+  // Overrides the current GLXDrawable backing the context and makes the
+  // context current.
+  bool OverrideDrawable(GLXDrawable drawable);
+
+  // Undoes the effect of a drawable override.
+  bool RestoreDrawable();
+
+ private:
+  friend class GLContextProviderGLX;
+
+  GLContextGLX(const GLContextDesc&, std::shared_ptr<gfx::XlibDisplay> aDisplay,
+               GLXDrawable aDrawable, GLXContext aContext, bool aDoubleBuffered,
+               Drawable aOwnedPixmap = X11None);
+
+  const GLXContext mContext;
+  const std::shared_ptr<gfx::XlibDisplay> mDisplay;
+  const GLXDrawable mDrawable;
+  // The X pixmap associated with the GLX pixmap. If this is provided, then this
+  // class assumes responsibility for freeing both. Otherwise, the user of this
+  // class is responsibility for freeing the drawables.
+  const Drawable mOwnedPixmap;
+  const bool mDoubleBuffered;
+
+  GLXLibrary* const mGLX;
+
+  const bool mOwnsContext = true;
+};
+
+}  // namespace gl
+}  // namespace mozilla
+
+#endif  // GLCONTEXTGLX_H_