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
|
use crate::core::Color;
use crate::graphics::compositor::{self, Information, SurfaceError};
use crate::graphics::{Error, Primitive, Viewport};
use crate::{Backend, Renderer, Settings};
use raw_window_handle::{HasRawDisplayHandle, HasRawWindowHandle};
use std::marker::PhantomData;
pub struct Compositor<Theme> {
clip_mask: tiny_skia::ClipMask,
_theme: PhantomData<Theme>,
}
pub enum Surface {
Cpu {
window: softbuffer::GraphicsContext,
buffer: Vec<u32>,
},
#[cfg(feature = "gpu")]
Gpu { pixels: pixels::Pixels },
}
impl<Theme> crate::graphics::Compositor for Compositor<Theme> {
type Settings = Settings;
type Renderer = Renderer<Theme>;
type Surface = Surface;
fn new<W: HasRawWindowHandle + HasRawDisplayHandle>(
settings: Self::Settings,
_compatible_window: Option<&W>,
) -> Result<(Self, Self::Renderer), Error> {
let (compositor, backend) = new(settings);
Ok((compositor, Renderer::new(backend)))
}
fn create_surface<W: HasRawWindowHandle + HasRawDisplayHandle>(
&mut self,
window: &W,
width: u32,
height: u32,
) -> Surface {
#[cfg(feature = "gpu")]
{
let surface_texture =
pixels::SurfaceTexture::new(width, height, window);
if let Ok(pixels) =
pixels::PixelsBuilder::new(width, height, surface_texture)
.texture_format(pixels::wgpu::TextureFormat::Bgra8UnormSrgb)
.build()
{
log::info!("GPU surface created");
return Surface::Gpu { pixels };
}
}
let window =
unsafe { softbuffer::GraphicsContext::new(window, window) }
.expect("Create softbuffer for window");
log::info!("CPU surface created");
Surface::Cpu {
window,
buffer: vec![0; width as usize * height as usize],
}
}
fn configure_surface(
&mut self,
surface: &mut Surface,
width: u32,
height: u32,
) {
match surface {
Surface::Cpu { buffer, .. } => {
buffer.resize((width * height) as usize, 0);
}
#[cfg(feature = "gpu")]
Surface::Gpu { pixels } => {
pixels
.resize_surface(width, height)
.expect("Resize surface");
pixels.resize_buffer(width, height).expect("Resize buffer");
}
}
}
fn fetch_information(&self) -> Information {
Information {
adapter: String::from("CPU"),
backend: String::from("tiny-skia"),
}
}
fn present<T: AsRef<str>>(
&mut self,
renderer: &mut Self::Renderer,
surface: &mut Self::Surface,
viewport: &Viewport,
background_color: Color,
overlay: &[T],
) -> Result<(), SurfaceError> {
renderer.with_primitives(|backend, primitives| {
present(
self,
backend,
surface,
primitives,
viewport,
background_color,
overlay,
)
})
}
}
pub fn new<Theme>(settings: Settings) -> (Compositor<Theme>, Backend) {
// TOD
(
Compositor {
clip_mask: tiny_skia::ClipMask::new(),
_theme: PhantomData,
},
Backend::new(settings),
)
}
pub fn present<Theme, T: AsRef<str>>(
compositor: &mut Compositor<Theme>,
backend: &mut Backend,
surface: &mut Surface,
primitives: &[Primitive],
viewport: &Viewport,
background_color: Color,
overlay: &[T],
) -> Result<(), compositor::SurfaceError> {
let physical_size = viewport.physical_size();
let buffer = match surface {
Surface::Cpu { buffer, .. } => bytemuck::cast_slice_mut(buffer),
#[cfg(feature = "gpu")]
Surface::Gpu { pixels } => pixels.frame_mut(),
};
let drawn = backend.draw(
&mut tiny_skia::PixmapMut::from_bytes(
buffer,
physical_size.width,
physical_size.height,
)
.expect("Create pixel map"),
&mut compositor.clip_mask,
primitives,
viewport,
background_color,
overlay,
);
if drawn {
match surface {
Surface::Cpu { window, buffer } => {
window.set_buffer(
buffer,
physical_size.width as u16,
physical_size.height as u16,
);
Ok(())
}
#[cfg(feature = "gpu")]
Surface::Gpu { pixels } => {
pixels.render().map_err(|_| compositor::SurfaceError::Lost)
}
}
} else {
Ok(())
}
}
|
