Add the xrender backend to the window manager.

x11/x_connection.h

 // Copyright (c) 2010 The Chromium OS 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 WINDOW_MANAGER_X11_X_CONNECTION_H_
 #define WINDOW_MANAGER_X11_X_CONNECTION_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
 #include "base/time.h"
 #include "window_manager/geometry.h"
 #include "window_manager/image_enums.h"
+#include "window_manager/math_types.h"
 #include "window_manager/x11/x_types.h"
 
 namespace window_manager {
 
 class ByteMap;  // from util.h
 struct Rect;
 template<class T> class Stacker;  // from util.h
 
 // This is an abstract base class representing a connection to the X
 // server.
@@ skipping 510 matching lines @@
   }
 
   // Query the pointer's current position relative to the root window.
   virtual bool QueryPointerPosition(Point* absolute_pos_out) = 0;
 
   // Set the background pixmap of a window.  This is tiled across the window
   // automatically by the server when the window is exposed.  Set to 'None'
   // to disable automatic window-clearing by the server.
   virtual bool SetWindowBackgroundPixmap(XWindow xid, XPixmap pixmap) = 0;
 
+  // Query the presence of the Render extension

[Daniel Erat, 2011/04/02 14:54:36]

nit: add period at the end of this comment and the other ones.

[marcheu, 2011/04/04 19:55:58]

Done.

+  virtual bool RenderQueryExtension() = 0;
+
+  // Create an XRender Picture
+  virtual XPicture RenderCreatePicture(XDrawable drawable, int depth) = 0;
+
+  // Create an XRender Picture from |data|

[Daniel Erat, 2011/04/02 14:54:36]

nit: describe format of |data|

[marcheu, 2011/04/04 19:55:58]

Done.

+  virtual XPixmap CreatePixmapFromData(char* data, const Size& size) = 0;

[Daniel Erat, 2011/04/02 14:54:36]

can you just make this take an ImageContainer instead?

[marcheu, 2011/04/04 19:55:58]

Done.

+
+  // Perform an XRender Composite operation
+  virtual void RenderComposite(bool blend, XPicture src, XPicture mask,
+                               XPicture dst, Point srcpos, Point maskpos,
+                               Matrix4 transform, Size size) = 0;
+
+  // Free an XRender Picture
+  virtual void RenderFreePicture(XPicture pict) = 0;
+
+  // Do an XRender solid fill
+  virtual void RenderFillRectangle(XPicture dst, float red, float green,
+                                   float blue, Point pos, Size size) = 0;
+
   // Value that should be used in event and property |format| fields for
   // byte and long arguments.
   static const int kByteFormat;
   static const int kLongFormat;
 
   // Maximum allowed onscreen position.  Hardcoded in the X protocol.
   static const int kMaxPosition;
 
  protected:
   // Base IDs for extension events.  Implementations should initialize
@@ skipping 12 matching lines @@
 
   // Time at which the server grab started.
   base::TimeTicks server_grab_time_;
 
   DISALLOW_COPY_AND_ASSIGN(XConnection);
 };
 
 }  // namespace window_manager
 
 #endif  // WINDOW_MANAGER_X11_X_CONNECTION_H_