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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
use std::collections::HashMap;
use std::fmt::Display;
use std::path::Path;
use ecs::Component;
use image::io::Reader as ImageReader;
use image::{DynamicImage, ImageError, Rgb, RgbImage};
use crate::color::Color;
use crate::opengl::texture::PixelDataFormat;
use crate::vector::Vec2;
mod reexports
{
pub use crate::opengl::texture::{Filtering, Wrapping};
}
pub use reexports::*;
#[derive(Debug, Clone)]
pub struct Texture
{
image: DynamicImage,
pixel_data_format: PixelDataFormat,
dimensions: Vec2<u32>,
properties: Properties,
}
impl Texture
{
/// Opens a texture image.
///
/// # Errors
/// Will return `Err` if:
/// - Opening the image fails
/// - The image data is not 8-bit/color RGB
#[allow(clippy::new_without_default)]
pub fn open(path: &Path) -> Result<Self, Error>
{
let image = ImageReader::open(path)
.map_err(Error::OpenImageFailed)?
.decode()
.map_err(Error::DecodeImageFailed)?;
let pixel_data_format = match &image {
DynamicImage::ImageRgb8(_) => PixelDataFormat::Rgb,
DynamicImage::ImageRgba8(_) => PixelDataFormat::Rgba,
_ => {
return Err(Error::UnsupportedImageDataKind);
}
};
let dimensions = Vec2 { x: image.width(), y: image.height() };
Ok(Self {
image,
pixel_data_format,
dimensions,
properties: Properties::default(),
})
}
#[must_use]
pub fn new_from_color(dimensions: &Vec2<u32>, color: &Color<u8>) -> Self
{
let image = RgbImage::from_pixel(
dimensions.x,
dimensions.y,
Rgb([color.red, color.green, color.blue]),
);
Self {
image: image.into(),
pixel_data_format: PixelDataFormat::Rgb,
dimensions: dimensions.clone(),
properties: Properties::default(),
}
}
#[must_use]
pub fn properties(&self) -> &Properties
{
&self.properties
}
pub fn properties_mut(&mut self) -> &mut Properties
{
&mut self.properties
}
#[must_use]
pub fn dimensions(&self) -> &Vec2<u32>
{
&self.dimensions
}
#[must_use]
pub fn pixel_data_format(&self) -> PixelDataFormat
{
self.pixel_data_format
}
#[must_use]
pub fn image(&self) -> &DynamicImage
{
&self.image
}
}
/// Texture error.
#[derive(Debug, thiserror::Error)]
pub enum Error
{
#[error("Failed to open texture image")]
OpenImageFailed(#[source] std::io::Error),
#[error("Failed to decode texture image")]
DecodeImageFailed(#[source] ImageError),
#[error("Unsupported image data kind")]
UnsupportedImageDataKind,
}
/// Texture properties
#[derive(Debug, Clone)]
#[non_exhaustive]
pub struct Properties
{
pub wrap: Wrapping,
pub magnifying_filter: Filtering,
pub minifying_filter: Filtering,
}
impl Default for Properties
{
fn default() -> Self
{
Self {
wrap: Wrapping::Repeat,
magnifying_filter: Filtering::Linear,
minifying_filter: Filtering::Nearest,
}
}
}
/// Texture ID.
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct Id
{
id: u32,
}
impl Id
{
/// Returns a new texture ID.
#[must_use]
pub fn new(id: u32) -> Self
{
Self { id }
}
pub(crate) fn into_inner(self) -> u32
{
self.id
}
}
impl Display for Id
{
fn fmt(&self, formatter: &mut std::fmt::Formatter<'_>) -> std::fmt::Result
{
self.id.fmt(formatter)
}
}
/// Texture map.
#[derive(Component)]
pub struct Map
{
pub inner: HashMap<Id, Texture>,
}
impl FromIterator<(Id, Texture)> for Map
{
fn from_iter<Iter>(iter: Iter) -> Self
where
Iter: IntoIterator<Item = (Id, Texture)>,
{
Self { inner: iter.into_iter().collect() }
}
}
|
