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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#pragma once

#include "common/math_util.h"

namespace Layout {

enum ScreenUndocked : unsigned { Width = 1280, Height = 720 };
enum ScreenDocked : unsigned { WidthDocked = 1920, HeightDocked = 1080 };

/// Describes the layout of the window framebuffer
struct FramebufferLayout {
    unsigned width{ScreenUndocked::Width};
    unsigned height{ScreenUndocked::Height};

    MathUtil::Rectangle<unsigned> screen;

    /**
     * Returns the ration of pixel size of the screen, compared to the native size of the undocked
     * Switch screen.
     */
    float GetScalingRatio() const {
        return static_cast<float>(screen.GetWidth()) / ScreenUndocked::Width;
    }
};

/**
 * Factory method for constructing a default FramebufferLayout
 * @param width Window framebuffer width in pixels
 * @param height Window framebuffer height in pixels
 * @return Newly created FramebufferLayout object with default screen regions initialized
 */
FramebufferLayout DefaultFrameLayout(unsigned width, unsigned height);

/**
 * Convenience method to get frame layout by resolution scale
 * @param res_scale resolution scale factor
 */
FramebufferLayout FrameLayoutFromResolutionScale(u16 res_scale);

} // namespace Layout