summaryrefslogtreecommitdiffstats
path: root/src/core/frontend/framebuffer_layout.h
blob: 1d39c1fafbfc5b86c54605ed51e568db190af1fe (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
// 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 : u32 {
    Width = 1280,
    Height = 720,
};

enum ScreenDocked : u32 {
    WidthDocked = 1920,
    HeightDocked = 1080,
};

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

/// Describes the layout of the window framebuffer
struct FramebufferLayout {
    u32 width{ScreenUndocked::Width};
    u32 height{ScreenUndocked::Height};

    Common::Rectangle<u32> 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(u32 width, u32 height);

/**
 * Convenience method to get frame layout by resolution scale
 * @param res_scale resolution scale factor
 */
FramebufferLayout FrameLayoutFromResolutionScale(u32 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