1// Copyright (c) 2011 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef UI_BASE_X_X11_UTIL_INTERNAL_H_ 6#define UI_BASE_X_X11_UTIL_INTERNAL_H_ 7 8// This file declares utility functions for X11 (Linux only). 9// 10// These functions require the inclusion of the Xlib headers. Since the Xlib 11// headers pollute so much of the namespace, this should only be included 12// when needed. 13 14extern "C" { 15#include <X11/Xatom.h> 16#include <X11/Xlib.h> 17#include <X11/extensions/XShm.h> 18#include <X11/extensions/Xrender.h> 19} 20 21#include "ui/base/ui_export.h" 22 23namespace ui { 24 25// -------------------------------------------------------------------------- 26// NOTE: these functions cache the results and must be called from the UI 27// thread. 28// Get the XRENDER format id for ARGB32 (Skia's format). 29// 30// NOTE:Currently this don't support multiple screens/displays. 31XRenderPictFormat* GetRenderARGB32Format(Display* dpy); 32 33// Get the XRENDER format id for the default visual on the first screen. This 34// is the format which our GTK window will have. 35UI_EXPORT XRenderPictFormat* GetRenderVisualFormat(Display* dpy, 36 Visual* visual); 37 38// -------------------------------------------------------------------------- 39// X11 error handling. 40// Sets the X Error Handlers. Passing NULL for either will enable the default 41// error handler, which if called will log the error and abort the process. 42UI_EXPORT void SetX11ErrorHandlers(XErrorHandler error_handler, 43 XIOErrorHandler io_error_handler); 44 45// NOTE: This function should not be called directly from the 46// X11 Error handler because it queries the server to decode the 47// error message, which may trigger other errors. A suitable workaround 48// is to post a task in the error handler to call this function. 49UI_EXPORT void LogErrorEventDescription(Display* dpy, 50 const XErrorEvent& error_event); 51 52} // namespace ui 53 54#endif // UI_BASE_X_X11_UTIL_INTERNAL_H_ 55