ursus_core/render/resource/
desc.rs

1use crate::render::gfx::descriptor::ImageUsage;
2use crate::render::gfx::types::Format;
3use ash::vk;
4
5#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
6pub struct ResourceHandle(pub(crate) u32);
7
8#[derive(Debug, Clone, Copy, PartialEq)]
9pub enum ResourceExtent {
10    Absolute(u32, u32),
11    ScaleInternal(f32),
12    ScaleOutput(f32),
13}
14
15impl ResourceExtent {
16    pub fn resolve(&self, internal: (u32, u32), output: (u32, u32)) -> (u32, u32) {
17        let scale = |(w, h): (u32, u32), s: f32| {
18            (((w as f32 * s).round() as u32).max(1), ((h as f32 * s).round() as u32).max(1))
19        };
20
21        match *self {
22            Self::Absolute(w, h) => (w, h),
23            Self::ScaleInternal(s) => scale(internal, s),
24            Self::ScaleOutput(s) => scale(output, s),
25        }
26    }
27}
28
29#[derive(Debug, Clone, Copy, PartialEq, Eq)]
30pub enum ResourceKind {
31    Color,
32    Depth,
33}
34
35impl ResourceKind {
36    pub fn aspect_mask(self) -> vk::ImageAspectFlags {
37        match self {
38            Self::Color => vk::ImageAspectFlags::COLOR,
39            Self::Depth => vk::ImageAspectFlags::DEPTH,
40        }
41    }
42}
43
44#[derive(Debug, Clone)]
45pub struct ResourceDesc {
46    pub name: String,
47    pub format: Format,
48    pub extent: ResourceExtent,
49    pub kind: ResourceKind,
50    pub usage: ImageUsage,
51}
52
53impl ResourceDesc {
54    pub fn color(name: impl Into<String>, format: Format, extent: ResourceExtent) -> Self {
55        Self {
56            name: name.into(),
57            format,
58            extent,
59            kind: ResourceKind::Color,
60            usage: ImageUsage::COLOR_ATTACHMENT | ImageUsage::SAMPLED,
61        }
62    }
63
64    pub fn depth(name: impl Into<String>, format: Format, extent: ResourceExtent) -> Self {
65        Self {
66            name: name.into(),
67            format,
68            extent,
69            kind: ResourceKind::Depth,
70            usage: ImageUsage::DEPTH_ATTACHMENT | ImageUsage::SAMPLED,
71        }
72    }
73
74    pub fn with_usage(mut self, flags: ImageUsage) -> Self {
75        self.usage |= flags;
76        self
77    }
78}
79
80pub struct ExternalImageDesc {
81    pub name: String,
82    pub format: vk::Format,
83    pub kind: ResourceKind,
84    pub initial_layout: vk::ImageLayout,
85    pub final_layout: vk::ImageLayout,
86}
ursus_core/render/resource/desc.rs

ursus_core/render/resource/
desc.rs
