Video Color Managament

ui/gfx/color_space.cc

 // Copyright (c) 2012 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.
 
 #include "ui/gfx/color_space.h"
 
 #include <map>
 
 #include "base/lazy_instance.h"
 #include "base/synchronization/lock.h"
@@ skipping 46 matching lines @@
 ColorSpace ColorSpace::CreateREC709() {
   return ColorSpace(PrimaryID::BT709, TransferID::BT709, MatrixID::BT709,
                     RangeID::LIMITED);
 }
 
 bool ColorSpace::operator==(const ColorSpace& other) const {
   return primaries_ == other.primaries_ && transfer_ == other.transfer_ &&
          matrix_ == other.matrix_ && range_ == other.range_;
 }
 
+bool ColorSpace::operator<(const ColorSpace& other) const {
+  if (primaries_ < other.primaries_)
+    return true;
+  if (primaries_ > other.primaries_)
+    return false;
+  if (transfer_ < other.transfer_)
+    return true;
+  if (transfer_ > other.transfer_)
+    return false;
+  if (matrix_ < other.matrix_)
+    return true;
+  if (matrix_ > other.matrix_)
+    return false;
+  if (range_ < other.range_)
+    return true;
+  if (range_ > other.range_)
+    return true;
+
+  // TODO(hubbe): For "CUSTOM" primaries or tranfer functions, compare their
+  // coefficients here
+
+  return false;
+}
+
 }  // namespace gfx