| // Copyright 2018 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 "chromecast/graphics/cast_display_util.h" |
| |
| #include <math.h> |
| #include <algorithm> |
| |
| namespace chromecast { |
| |
| float GetDeviceScaleFactor(const gfx::Size& display_resolution) { |
| int smaller_dimension = |
| std::min(display_resolution.width(), display_resolution.height()); |
| float ratio = smaller_dimension / 720.f; |
| if (ratio >= 2.f) |
| return floorf(ratio); |
| if (ratio >= 1.5f) |
| return 1.5f; |
| return 1.f; |
| } |
| |
| } // namespace chromecast |
