verdant 0.6.0

A windowing and rendering library, inspired by Processing. Clean API, SDF-based rendering, multi-window support, built on wgpu and winit.
Documentation 
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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141

use std::{fmt::{self, Display, Formatter}, io, sync::PoisonError};

#[cfg(feature = "image")]
use image::ImageError;
use wgpu::{CreateSurfaceError, RequestAdapterError, RequestDeviceError};
use winit::error::{EventLoopError, RequestError};

#[derive(Debug)]
pub enum Error {
    // init errors
    NoAdapterFound(RequestAdapterError),
    DeviceRequestFailed(RequestDeviceError),

    // window errors
    WindowCreationFailed(RequestError),
    SurfaceCreationFailed(CreateSurfaceError),

    // image errors
    BlitOutOfBounds {
        x: u32,
        y: u32,
        width: u32,
        height: u32,
        img_width: u32,
        img_height: u32,
    },
    BlitBufferTooSmall {
        expected: usize,
        actual: usize,
    },
    ReadOutOfBounds {
        x: u32,
        y: u32,
        width: u32,
        height: u32,
        img_width: u32,
        img_height: u32,
    },
    ReadBufferTooSmall {
        expected: usize,
        actual: usize,
    },
    ImageBufferTooSmall {
        expected: usize,
        actual: usize,
    },

    #[cfg(feature = "image")]
    ImageError(ImageError),

    // text errors
    TextTooBig,

    // misc errors
    IOError(io::Error),
    FontError(&'static str),
    EventLoopError(EventLoopError),
    PoisonError(String),
}

impl Display for Error {
    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
        match self {
            Self::NoAdapterFound(e) => write!(f, "Failed to find a GPU adapter: {e}"),
            Self::DeviceRequestFailed(e) => write!(f, "Failed to request a device: {e}"),

            Self::WindowCreationFailed(e) => write!(f, "Failed to create window: {e}"),
            Self::SurfaceCreationFailed(e) => write!(f, "Failed to create surface: {e}"),

            Self::BlitOutOfBounds { x, y, width, height, img_width, img_height }
                => write!(f, "Blit region (at x: {x}, y: {y}, size: {width}x{height}) exceeds target dimensions ({img_width}x{img_height})"),
            Self::BlitBufferTooSmall { expected, actual }
                => write!(f, "Blit source buffer is too small: expected at least {expected} bytes, but got {actual} bytes"),
            Self::ReadOutOfBounds { x, y, width, height, img_width, img_height }
                => write!(f, "Read region (at x: {x}, y: {y}, size: {width}x{height}) exceeds source dimensions ({img_width}x{img_height})"),
            Self::ReadBufferTooSmall { expected, actual }
                => write!(f, "Read destination buffer is too small: expected at least {expected} bytes, but got {actual} bytes"),
            Self::ImageBufferTooSmall { expected, actual }
                => write!(f, "Image source buffer is too small: expected at least {expected} bytes, but got {actual} bytes"),

            #[cfg(feature = "image")]
            Self::ImageError(e) => write!(f, "Image error: {e}"),

            Self::TextTooBig => write!(f, "Text was too big to fit in atlas"),

            Self::IOError(e) => write!(f, "IO error: {e}"),
            Self::FontError(e) => write!(f, "Font error: {e}"),
            Self::EventLoopError(e) => write!(f, "Event loop error: {e}"),
            Self::PoisonError(e) => write!(f, "Poisoned lock error: {e}"),
        }
    }
}

impl From<RequestAdapterError> for Error {
    fn from(error: RequestAdapterError) -> Self {
        Self::NoAdapterFound(error)
    }
}

impl From<RequestDeviceError> for Error {
    fn from(error: RequestDeviceError) -> Self {
        Self::DeviceRequestFailed(error)
    }
}

impl From<RequestError> for Error {
    fn from(error: RequestError) -> Self {
        Self::WindowCreationFailed(error)
    }
}

impl From<CreateSurfaceError> for Error {
    fn from(error: CreateSurfaceError) -> Self {
        Self::SurfaceCreationFailed(error)
    }
}

#[cfg(feature = "image")]
impl From<ImageError> for Error {
    fn from(error: ImageError) -> Self {
        Self::ImageError(error)
    }
}

impl From<io::Error> for Error {
    fn from(error: io::Error) -> Self {
        Self::IOError(error)
    }
}

impl From<EventLoopError> for Error {
    fn from(error: EventLoopError) -> Self {
        Self::EventLoopError(error)
    }
}

impl<T> From<PoisonError<T>> for Error {
    fn from(error: PoisonError<T>) -> Self {
        Error::PoisonError(error.to_string())
    }
}