Add support for high-DPI hosts under Mac OS X.

remoting/capturer/mac/desktop_configuration.h

+// Copyright (c) 2013 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 REMOTING_CAPTURER_MAC_DESKTOP_CONFIGURATION_H_
+#define REMOTING_CAPTURER_MAC_DESKTOP_CONFIGURATION_H_
+
+#include <ApplicationServices/ApplicationServices.h>
+#include <Carbon/Carbon.h>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "third_party/skia/include/core/SkPoint.h"
+#include "third_party/skia/include/core/SkRect.h"
+
+namespace remoting {
+
+// Describes the configuration of a specific display.
+struct MacDisplayConfiguration {
+  MacDisplayConfiguration();
+
+  // Returns the current configuration of the specified display.
+  static MacDisplayConfiguration ForDisplay(CGDirectDisplayID display_id);
+
+  // Cocoa identifier for this display.
+  CGDirectDisplayID id;
+
+  // Bounds of this display in Density-Independent Pixels (DIPs).
+  SkIRect bounds;
+
+  // Bounds of this display in physical pixels.
+  SkIRect pixel_bounds;
+
+  // Scale factor from DIPs to physical pixels.
+  float dip_to_pixel_scale;
+};
+
+typedef std::vector<MacDisplayConfiguration> MacDisplayConfigurations;
+
+// Describes the configuration of the whole desktop.
+struct MacDesktopConfiguration {
+  MacDesktopConfiguration();
+  ~MacDesktopConfiguration();
+
+  // Returns the current configuration of the desktop.
+  static MacDesktopConfiguration GetCurrent();
+
+  // Bounds of the desktop in Density-Independent Pixels (DIPs).
+  SkIRect bounds;
+
+  // Bounds of the desktop in physical pixels.
+  SkIRect pixel_bounds;
+
+  // Scale factor from DIPs to physical pixels.
+  float dip_to_pixel_scale;
+
+  // Configurations of the displays making up the desktop area.
+  MacDisplayConfigurations displays;
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_CAPTURER_MAC_DESKTOP_CONFIGURATION_H_