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
|
use wgt::{Backend, WasmNotSendSync};
use crate::{
global::Global,
hub::Hub,
instance::{Instance, Surface},
};
pub trait HalApi: hal::Api + 'static + WasmNotSendSync {
const VARIANT: Backend;
fn create_instance_from_hal(name: &str, hal_instance: Self::Instance) -> Instance;
fn instance_as_hal(instance: &Instance) -> Option<&Self::Instance>;
fn hub(global: &Global) -> &Hub<Self>;
fn get_surface(surface: &Surface) -> Option<&Self::Surface>;
}
impl HalApi for hal::api::Empty {
const VARIANT: Backend = Backend::Empty;
fn create_instance_from_hal(_: &str, _: Self::Instance) -> Instance {
unimplemented!("called empty api")
}
fn instance_as_hal(_: &Instance) -> Option<&Self::Instance> {
unimplemented!("called empty api")
}
fn hub(_: &Global) -> &Hub<Self> {
unimplemented!("called empty api")
}
fn get_surface(_: &Surface) -> Option<&Self::Surface> {
unimplemented!("called empty api")
}
}
#[cfg(vulkan)]
impl HalApi for hal::api::Vulkan {
const VARIANT: Backend = Backend::Vulkan;
fn create_instance_from_hal(name: &str, hal_instance: Self::Instance) -> Instance {
Instance {
name: name.to_owned(),
vulkan: Some(hal_instance),
..Default::default()
}
}
fn instance_as_hal(instance: &Instance) -> Option<&Self::Instance> {
instance.vulkan.as_ref()
}
fn hub(global: &Global) -> &Hub<Self> {
&global.hubs.vulkan
}
fn get_surface(surface: &Surface) -> Option<&Self::Surface> {
surface.raw.downcast_ref::<Self>()
}
}
#[cfg(metal)]
impl HalApi for hal::api::Metal {
const VARIANT: Backend = Backend::Metal;
fn create_instance_from_hal(name: &str, hal_instance: Self::Instance) -> Instance {
Instance {
name: name.to_owned(),
metal: Some(hal_instance),
..Default::default()
}
}
fn instance_as_hal(instance: &Instance) -> Option<&Self::Instance> {
instance.metal.as_ref()
}
fn hub(global: &Global) -> &Hub<Self> {
&global.hubs.metal
}
fn get_surface(surface: &Surface) -> Option<&Self::Surface> {
surface.raw.downcast_ref::<Self>()
}
}
#[cfg(dx12)]
impl HalApi for hal::api::Dx12 {
const VARIANT: Backend = Backend::Dx12;
fn create_instance_from_hal(name: &str, hal_instance: Self::Instance) -> Instance {
Instance {
name: name.to_owned(),
dx12: Some(hal_instance),
..Default::default()
}
}
fn instance_as_hal(instance: &Instance) -> Option<&Self::Instance> {
instance.dx12.as_ref()
}
fn hub(global: &Global) -> &Hub<Self> {
&global.hubs.dx12
}
fn get_surface(surface: &Surface) -> Option<&Self::Surface> {
surface.raw.downcast_ref::<Self>()
}
}
#[cfg(gles)]
impl HalApi for hal::api::Gles {
const VARIANT: Backend = Backend::Gl;
fn create_instance_from_hal(name: &str, hal_instance: Self::Instance) -> Instance {
#[allow(clippy::needless_update)]
Instance {
name: name.to_owned(),
gl: Some(hal_instance),
..Default::default()
}
}
fn instance_as_hal(instance: &Instance) -> Option<&Self::Instance> {
instance.gl.as_ref()
}
fn hub(global: &Global) -> &Hub<Self> {
&global.hubs.gl
}
fn get_surface(surface: &Surface) -> Option<&Self::Surface> {
surface.raw.downcast_ref::<Self>()
}
}
|