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
|
//! Code for using multiple draw passes in place of just one
//! Note that this can be extended to an arbitrary amount of draw passes.
use super::{Beginning, DrawPass, End, IntoDrawPass, Middle, Singular};
use crate::{context::RenderingContext, queue_negotiator::QueueFamilyNegotiator, types::*};
use stockton_types::Session;
use anyhow::Result;
/// One draw pass, then another.
pub struct ConsDrawPass<A, B> {
pub a: A,
pub b: B,
}
macro_rules! cons_shared_impl {
() => {
fn queue_draw(
&mut self,
session: &Session,
img_view: &ImageViewT,
cmd_buffer: &mut CommandBufferT,
) -> Result<()> {
self.a.queue_draw(session, img_view, cmd_buffer)?;
self.b.queue_draw(session, img_view, cmd_buffer)?;
Ok(())
}
fn deactivate(self, context: &mut RenderingContext) -> Result<()> {
self.a.deactivate(context)?;
self.b.deactivate(context)
}
fn handle_surface_change(
mut self,
session: &Session,
context: &mut RenderingContext,
) -> Result<Self> {
match self.a.handle_surface_change(session, context) {
Ok(a) => self.a = a,
Err(e) => {
self.b.deactivate(context)?;
return Err(e);
}
}
match self.b.handle_surface_change(session, context) {
Ok(b) => self.b = b,
Err(e) => {
self.a.deactivate(context)?;
return Err(e);
}
}
Ok(self)
}
};
}
impl<A, B> DrawPass<Singular> for ConsDrawPass<A, B>
where
A: DrawPass<Beginning>,
B: DrawPass<End>,
{
cons_shared_impl! {}
}
impl<A, B> DrawPass<End> for ConsDrawPass<A, B>
where
A: DrawPass<Middle>,
B: DrawPass<End>,
{
cons_shared_impl! {}
}
macro_rules! into_shared_impl {
() => {
fn init(
self,
session: &mut Session,
context: &mut RenderingContext,
) -> Result<ConsDrawPass<A, B>> {
Ok(ConsDrawPass {
a: self.0.init(session, context)?,
b: self.1.init(session, context)?,
})
}
fn find_aux_queues<'a>(
adapter: &'a Adapter,
queue_negotiator: &mut QueueFamilyNegotiator,
) -> Result<()> {
IA::find_aux_queues(adapter, queue_negotiator)?;
IB::find_aux_queues(adapter, queue_negotiator)?;
Ok(())
}
};
}
impl<A, B, IA, IB> IntoDrawPass<ConsDrawPass<A, B>, Singular> for (IA, IB)
where
A: DrawPass<Beginning>,
B: DrawPass<End>,
IA: IntoDrawPass<A, Beginning>,
IB: IntoDrawPass<B, End>,
{
into_shared_impl! {}
}
impl<A, B, IA, IB> IntoDrawPass<ConsDrawPass<A, B>, End> for (IA, IB)
where
A: DrawPass<Middle>,
B: DrawPass<End>,
IA: IntoDrawPass<A, Middle>,
IB: IntoDrawPass<B, End>,
{
into_shared_impl! {}
}
|
