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
|
#![forbid(unsafe_code)]
//! SDL platform adapter proof behind safe `FParkan` ports.
use fparkan_platform::{
EventSource, GraphicsContextRequest, GraphicsProfile, PhysicalSize, PlatformError,
PlatformEvent, Version, WindowPort,
};
/// Adapter capabilities compiled into this package.
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct SdlAdapterCapabilities {
/// Supported graphics context requests in preference order.
pub graphics: Vec<GraphicsContextRequest>,
/// Whether adapter-owned code is free of `unsafe`.
pub project_owned_unsafe_free: bool,
}
impl Default for SdlAdapterCapabilities {
fn default() -> Self {
Self {
graphics: vec![
GraphicsContextRequest {
profile: GraphicsProfile::DesktopCore,
version: Version { major: 3, minor: 3 },
},
GraphicsContextRequest {
profile: GraphicsProfile::Embedded,
version: Version { major: 2, minor: 0 },
},
],
project_owned_unsafe_free: true,
}
}
}
/// Returns adapter readiness status for the safe project-owned layer.
#[must_use]
pub fn safe_adapter_ready() -> bool {
SdlAdapterCapabilities::default().project_owned_unsafe_free
}
/// In-memory event source used by adapter smoke tests and composition roots
/// before a concrete SDL runtime is injected.
#[derive(Clone, Debug, Default)]
pub struct SdlEventSourceProof {
pending: Vec<PlatformEvent>,
}
impl SdlEventSourceProof {
/// Creates an event source with deterministic pending events.
#[must_use]
pub fn new(pending: Vec<PlatformEvent>) -> Self {
Self { pending }
}
}
impl EventSource for SdlEventSourceProof {
fn poll(&mut self, out: &mut Vec<PlatformEvent>) -> Result<(), PlatformError> {
out.append(&mut self.pending);
Ok(())
}
}
/// Safe window-port proof with SDL-compatible drawable-size semantics.
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct SdlWindowProof {
size: PhysicalSize,
presents: u64,
}
impl SdlWindowProof {
/// Creates a proof window with a fixed drawable size.
#[must_use]
pub fn new(size: PhysicalSize) -> Self {
Self { size, presents: 0 }
}
/// Number of successful present calls.
#[must_use]
pub fn presents(&self) -> u64 {
self.presents
}
}
impl WindowPort for SdlWindowProof {
fn drawable_size(&self) -> PhysicalSize {
self.size
}
fn present(&mut self) -> Result<(), PlatformError> {
self.presents = self.presents.saturating_add(1);
Ok(())
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn adapter_reports_safe_project_layer_ready() {
assert!(safe_adapter_ready());
assert_eq!(SdlAdapterCapabilities::default().graphics.len(), 2);
}
#[test]
fn event_source_and_window_ports_are_deterministic() -> Result<(), PlatformError> {
let mut source = SdlEventSourceProof::new(vec![PlatformEvent::Quit]);
let mut events = Vec::new();
source.poll(&mut events)?;
source.poll(&mut events)?;
assert_eq!(events, vec![PlatformEvent::Quit]);
let mut window = SdlWindowProof::new(PhysicalSize {
width: 320,
height: 240,
});
assert_eq!(window.drawable_size().width, 320);
window.present()?;
assert_eq!(window.presents(), 1);
Ok(())
}
}
|
