POSIX: bitmap data on the wire

chrome/renderer/render_widget.h

 // Copyright (c) 2006-2008 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_RENDERER_RENDER_WIDGET_H__
 #define CHROME_RENDERER_RENDER_WIDGET_H__
 
 #include <vector>
 #include "base/basictypes.h"
 #include "base/gfx/native_widget_types.h"
 #include "base/gfx/point.h"
 #include "base/gfx/rect.h"
 #include "base/gfx/size.h"
 #include "base/ref_counted.h"
 #include "chrome/common/ipc_channel.h"
 #include "chrome/common/render_messages.h"
+#include "skia/ext/platform_canvas.h"
 
 #include "webkit/glue/webwidget_delegate.h"
 #include "webkit/glue/webcursor.h"
 #include "webkit/glue/webplugin.h"
 
 class RenderThreadBase;
 
 // RenderWidget provides a communication bridge between a WebWidget and
 // a RenderWidgetHost, the latter of which lives in a different process.
 class RenderWidget : public IPC::Channel::Listener,
@@ skipping 51 matching lines @@
   virtual void SetWindowRect(WebWidget* webwidget, const gfx::Rect& rect);
   virtual void GetRootWindowRect(WebWidget* webwidget, gfx::Rect* rect);
   virtual void GetRootWindowResizerRect(WebWidget* webwidget, gfx::Rect* rect);
   virtual void DidMove(WebWidget* webwidget, const WebPluginGeometry& move);
   virtual void RunModal(WebWidget* webwidget) {}
   virtual bool IsHidden() { return is_hidden_; }
 
   // Close the underlying WebWidget.
   void Close();
 
+  // Get the size of the paint buffer for the given rectangle, rounding up to
+  // the allocation granularity of the system.
+  static size_t GetPaintBufSize(const gfx::Rect& rect);
+
  protected:
   // Friend RefCounted so that the dtor can be non-public. Using this class
   // without ref-counting is an error.
   friend class base::RefCounted<RenderWidget>;
 
   RenderWidget(RenderThreadBase* render_thread, bool activatable);
   virtual ~RenderWidget();
 
   // Initializes this view with the given opener.  CompleteInit must be called
   // later.
   void Init(int32 opener_id);
 
   // Finishes creation of a pending view started with Init.
   void CompleteInit(gfx::NativeViewId parent);
 
-  // Paints the given rectangular region of the WebWidget into paint_buf (a
-  // shared memory segment returned by AllocPaintBuf). The caller must ensure
-  // that the given rect fits within the bounds of the WebWidget.
-  void PaintRect(const gfx::Rect& rect, base::SharedMemory* paint_buf);
-
-  // Get the size of the paint buffer for the given rectangle, rounding up to
-  // the allocation granularity of the system.
-  size_t GetPaintBufSize(const gfx::Rect& rect);
+  // Paints the given rectangular region of the WebWidget into canvas (a
+  // shared memory segment returned by AllocPaintBuf on Windows). The caller
+  // must ensure that the given rect fits within the bounds of the WebWidget.
+  void PaintRect(const gfx::Rect& rect, skia::PlatformCanvas* canvas);
 
   void DoDeferredPaint();
   void DoDeferredScroll();
 
   // This method is called immediately after PaintRect but before the
   // corresponding paint or scroll message is send to the widget host.
   virtual void DidPaint() {}
 
   // RenderWidget IPC message handlers
   void OnClose();
@@ skipping 148 matching lines @@
   // Whether the window for this RenderWidget can be activated.
   bool activatable_;
 
   // Holds all the needed plugin window moves for a scroll.
   std::vector<WebPluginGeometry> plugin_window_moves_;
 
   DISALLOW_EVIL_CONSTRUCTORS(RenderWidget);
 };
 
 #endif // CHROME_RENDERER_RENDER_WIDGET_H__