Start working on assets

This commit is contained in:
SeanOMik 2023-09-12 14:25:33 -04:00
parent eb941794dc
commit e21490cd6a
Signed by: SeanOMik
GPG Key ID: 568F326C7EB33ACB
9 changed files with 595 additions and 14 deletions

382
Cargo.lock generated
View File

@ -97,9 +97,9 @@ dependencies = [
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@ -665,6 +723,19 @@ dependencies = [
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@ -680,6 +751,12 @@ version = "0.1.1"
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@ -847,6 +942,15 @@ dependencies = [
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@ -900,17 +1004,21 @@ checksum = "dfa686283ad6dd069f105e5ab091b04c62850d3e4cf5d67debad1933f55023df"
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@ -992,6 +1100,9 @@ name = "jpeg-decoder"
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@ -1028,6 +1139,12 @@ version = "1.4.0"
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@ -1107,6 +1224,7 @@ dependencies = [
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@ -1159,6 +1287,15 @@ dependencies = [
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@ -1221,6 +1358,15 @@ dependencies = [
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@ -1259,7 +1405,7 @@ dependencies = [
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"libc",
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"memoffset 0.6.5",
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"bitflags",
"cfg-if",
"libc",
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"winapi",
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@ -1317,6 +1499,29 @@ dependencies = [
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@ -1337,6 +1542,16 @@ dependencies = [
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@ -1508,6 +1723,26 @@ dependencies = [
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@ -1600,6 +1844,34 @@ dependencies = [
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View File

@ -3,7 +3,10 @@ name = "lyra-engine"
version = "0.0.1"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[workspace]
members = [
"lyra-resource"
]
[dependencies]
winit = "0.28.1"

12
lyra-resource/Cargo.toml Normal file
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@ -0,0 +1,12 @@
[package]
name = "lyra-resource"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
anyhow = "1.0.75"
image = "0.24.7"
thiserror = "1.0.48"
uuid = { version = "1.4.1", features = ["v4"] }

19
lyra-resource/src/lib.rs Normal file
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@ -0,0 +1,19 @@
pub mod resource_manager;
pub mod resource;
pub mod texture;
pub mod loader;
pub fn add(left: usize, right: usize) -> usize {
left + right
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn it_works() {
let result = add(2, 2);
assert_eq!(result, 4);
}
}

View File

@ -0,0 +1,35 @@
pub mod texture;
use std::{io, sync::Arc, fs::File};
use thiserror::Error;
use crate::resource_manager::ResourceStorage;
#[derive(Error, Debug)]
pub enum LoaderError {
#[error("A malformed path was given: '{0}'")]
InvalidPath(String),
#[error("The loader does not support the extension '{0}'")]
UnsupportedExtension(String),
#[error("IOError: '{0}'")]
IOError(io::Error),
// From is implemented for this field in each loader module
#[error("Decoding error: '{0}'")]
DecodingError(anyhow::Error),
}
impl From<io::Error> for LoaderError {
fn from(value: io::Error) -> Self {
LoaderError::IOError(value)
}
}
pub trait ResourceLoader {
fn extensions(&self) -> &[&str];
fn does_support_file(&self, path: &str) -> bool;
fn load(&self, path: &str) -> Result<Arc<dyn ResourceStorage>, LoaderError>;
}

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use std::{fs::File, sync::Arc, path::Path, ffi::OsStr, io::Read};
use image::ImageError;
use crate::{resource_manager::ResourceStorage, texture::Texture, resource::Resource};
use super::{LoaderError, ResourceLoader};
impl From<ImageError> for LoaderError {
fn from(value: ImageError) -> Self {
LoaderError::DecodingError(anyhow::Error::from(value))
}
}
/// A struct that implements the `ResourceLoader` trait used for loading textures.
pub struct TextureLoader;
impl ResourceLoader for TextureLoader {
fn extensions(&self) -> &[&str] {
&[
// the extensions of these are the names of the formats
"bmp", "dds", "gif", "ico", "jpeg", "jpg", "png", "qoi", "tga", "tiff", "webp",
// farbfeld
"ff",
// pnm
"pnm", "pbm", "pgm", "ppm", "pam",
]
}
fn does_support_file(&self, path: &str) -> bool {
match Path::new(path).extension().and_then(OsStr::to_str) {
Some(ext) => {
self.extensions().contains(&ext)
},
_ => false,
}
}
fn load(&self, path: &str) -> Result<Arc<dyn ResourceStorage>, LoaderError> {
// check if the file is supported by this loader
if !self.does_support_file(path) {
return Err(LoaderError::UnsupportedExtension(path.to_string()));
}
// read file bytes
let mut file = File::open(path)?;
let mut buf = vec![];
file.read_to_end(&mut buf)?;
// load the image and construct Resource<Texture>
let image = image::load_from_memory(&buf)?;
let texture = Texture {
image,
};
let res = Resource::with_data(path, texture);
Ok(Arc::new(res))
}
}

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use std::sync::Arc;
use uuid::Uuid;
#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord)]
pub enum ResourceState {
Loading,
Ready,
}
#[derive(Clone)]
pub struct Resource<T: Send + Sync + 'static> {
pub path: String,
pub data: Option<Arc<T>>,
pub uuid: Uuid,
pub state: ResourceState,
}
impl<T: Send + Sync + 'static> Resource<T> {
/// Create the resource with data, its assumed the state is `Ready`
pub fn with_data(path: &str, data: T) -> Self {
Self {
path: path.to_string(),
data: Some(Arc::new(data)),
uuid: Uuid::new_v4(),
state: ResourceState::Ready,
}
}
}

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use std::{sync::Arc, collections::{HashMap, hash_map::DefaultHasher}, hash::{Hash, Hasher}, any::Any};
use crate::{resource::Resource, loader::ResourceLoader};
pub trait ResourceStorage: Send + Sync + Any + 'static {
fn as_any(&self) -> &dyn Any;
fn as_any_mut(&mut self) -> &mut dyn Any;
fn as_arc_any(self: Arc<Self>) -> Arc<dyn Any + Send + Sync>;
}
/// Implements this trait for anything that fits the type bounds
impl<T: Send + Sync + 'static> ResourceStorage for T {
fn as_any(&self) -> &dyn Any {
self
}
fn as_any_mut(&mut self) -> &mut dyn Any {
self
}
fn as_arc_any(self: Arc<Self>) -> Arc<dyn Any + Send + Sync> {
self.clone()
}
}
#[derive(Default)]
pub struct ResourceManager {
resources: HashMap<String, Arc<dyn ResourceStorage>>,
loader: HashMap<String, Box<dyn ResourceLoader>>,
}
impl ResourceManager {
pub fn new() -> Self {
Self {
resources: HashMap::new(),
loader: HashMap::new(),
}
}
pub fn request<T: Send + Sync + Any + 'static>(&mut self, path: &str) -> Option<Arc<Resource<T>>> {
match self.resources.get(&path.to_string()) {
Some(res) => {
let res = res.clone().as_arc_any();
let res = res.downcast::<Resource<T>>().ok();
res
},
None => {
todo!()
}
}
}
}

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use image::{DynamicImage, ImageResult, ImageBuffer, Rgba};
#[derive(Clone)]
pub struct Texture {
pub image: DynamicImage,
}
impl Texture {
}