Index: chrome/common/x11_util.h |
diff --git a/chrome/common/x11_util.h b/chrome/common/x11_util.h |
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+// Copyright (c) 2009 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef CHROME_COMMON_X11_UTIL_H_ |
+#define CHROME_COMMON_X11_UTIL_H_ |
+ |
+// This file declares utility functions for X11 (Linux only). |
+// |
+// These functions do not require the Xlib headers to be included (which is why |
+// we use a void* for Visual*). The Xlib headers are highly polluting so we try |
+// hard to limit their spread into the rest of the code. |
+ |
+typedef struct _GtkWidget GtkWidget; |
+typedef unsigned long XID; |
+typedef struct _XDisplay Display; |
+ |
+namespace gfx { |
+class Size; |
+} |
+ |
+namespace x11_util { |
+ // These functions cache their results and must be called from the UI thread. |
+ // Currently they don't support multiple screens/displays. |
+ |
+ // Return an X11 connection for the current, primary display. |
+ Display* GetXDisplay(); |
+ // Return true iff the connection supports X shared memory |
+ bool QuerySharedMemorySupport(Display* dpy); |
+ |
+ // These functions do not cache their results |
+ |
+ // Get the X window id for the given GTK widget. |
+ XID GetX11WindowFromGtkWidget(GtkWidget*); |
+ // Get a Visual from the given widget. Since we don't include the Xlib |
+ // headers, this is returned as a void*. |
+ void* GetVisualFromGtkWidget(GtkWidget*); |
+ |
+ // Return a handle to a server side pixmap. |shared_memory_key| is a SysV |
+ // IPC key. The shared memory region must contain 32-bit pixels. |
+ XID AttachSharedMemory(Display* display, int shared_memory_support); |
+ void DetachSharedMemory(Display* display, XID shmseg); |
+ |
+ // Return a handle to an XRender picture where |pixmap| is a handle to a |
+ // pixmap containing Skia ARGB data. |
+ XID CreatePictureFromSkiaPixmap(Display* display, XID pixmap); |
+ |
+ void FreePicture(Display* display, XID picture); |
+ void FreePixmap(Display* display, XID pixmap); |
+}; |
+ |
+#endif // CHROME_COMMON_X11_UTIL_H_ |