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// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#pragma once

#include "common/common_types.h"
#include "common/math_util.h"

namespace Layout {

namespace MinimumSize {
constexpr u32 Width = 640;
constexpr u32 Height = 360;
} // namespace MinimumSize

namespace ScreenUndocked {
constexpr u32 Width = 1280;
constexpr u32 Height = 720;
} // namespace ScreenUndocked

namespace ScreenDocked {
constexpr u32 Width = 1920;
constexpr u32 Height = 1080;
} // namespace ScreenDocked

enum class AspectRatio {
    Default,
    R4_3,
    R21_9,
    R16_10,
    StretchToWindow,
};

/// Describes the layout of the window framebuffer
struct FramebufferLayout {
    u32 width{ScreenUndocked::Width};
    u32 height{ScreenUndocked::Height};
    Common::Rectangle<u32> screen;
    bool is_srgb{};
};

/**
 * 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(u32 width, u32 height);

/**
 * Convenience method to get frame layout by resolution scale
 * @param res_scale resolution scale factor
 */
FramebufferLayout FrameLayoutFromResolutionScale(f32 res_scale);

/**
 * Convenience method to determine emulation aspect ratio
 * @param aspect Represents the index of aspect ratio stored in Settings::values.aspect_ratio
 * @param window_aspect_ratio Current window aspect ratio
 * @return Emulation render window aspect ratio
 */
float EmulationAspectRatio(AspectRatio aspect, float window_aspect_ratio);

} // namespace Layout