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// Copyright 2014 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/ozone/platform/drm/gpu/drm_display_mode.h"
namespace ui {
namespace {
float GetRefreshRate(const drmModeModeInfo& mode) {
if (!mode.htotal || !mode.vtotal)
return mode.vrefresh;
float clock = mode.clock;
float htotal = mode.htotal;
float vtotal = mode.vtotal;
return (clock * 1000.0f) / (htotal * vtotal);
}
} // namespace
DrmDisplayMode::DrmDisplayMode(const drmModeModeInfo& mode)
: DisplayMode(gfx::Size(mode.hdisplay, mode.vdisplay),
mode.flags & DRM_MODE_FLAG_INTERLACE,
GetRefreshRate(mode)),
mode_info_(mode) {
}
DrmDisplayMode::~DrmDisplayMode() {
}
} // namespace ui
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