1 files changed, 79 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/desktop_capture/desktop_geometry.cc b/third_party/libwebrtc/modules/desktop_capture/desktop_geometry.cc
new file mode 100644
index 0000000000..e0a5d7af83
--- /dev/null
+++ b/third_party/libwebrtc/modules/desktop_capture/desktop_geometry.cc
@@ -0,0 +1,79 @@
+/*
+ *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "modules/desktop_capture/desktop_geometry.h"
+
+#include <algorithm>
+#include <cmath>
+
+namespace webrtc {
+
+bool DesktopRect::Contains(const DesktopVector& point) const {
+  return point.x() >= left() && point.x() < right() && point.y() >= top() &&
+         point.y() < bottom();
+}
+
+bool DesktopRect::ContainsRect(const DesktopRect& rect) const {
+  return rect.left() >= left() && rect.right() <= right() &&
+         rect.top() >= top() && rect.bottom() <= bottom();
+}
+
+void DesktopRect::IntersectWith(const DesktopRect& rect) {
+  left_ = std::max(left(), rect.left());
+  top_ = std::max(top(), rect.top());
+  right_ = std::min(right(), rect.right());
+  bottom_ = std::min(bottom(), rect.bottom());
+  if (is_empty()) {
+    left_ = 0;
+    top_ = 0;
+    right_ = 0;
+    bottom_ = 0;
+  }
+}
+
+void DesktopRect::UnionWith(const DesktopRect& rect) {
+  if (is_empty()) {
+    *this = rect;
+    return;
+  }
+
+  if (rect.is_empty()) {
+    return;
+  }
+
+  left_ = std::min(left(), rect.left());
+  top_ = std::min(top(), rect.top());
+  right_ = std::max(right(), rect.right());
+  bottom_ = std::max(bottom(), rect.bottom());
+}
+
+void DesktopRect::Translate(int32_t dx, int32_t dy) {
+  left_ += dx;
+  top_ += dy;
+  right_ += dx;
+  bottom_ += dy;
+}
+
+void DesktopRect::Extend(int32_t left_offset,
+                         int32_t top_offset,
+                         int32_t right_offset,
+                         int32_t bottom_offset) {
+  left_ -= left_offset;
+  top_ -= top_offset;
+  right_ += right_offset;
+  bottom_ += bottom_offset;
+}
+
+void DesktopRect::Scale(double horizontal, double vertical) {
+  right_ += static_cast<int>(std::round(width() * (horizontal - 1)));
+  bottom_ += static_cast<int>(std::round(height() * (vertical - 1)));
+}
+
+}  // namespace webrtc