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/*
* Copyright (C) Oscar Shrimpton 2020
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
//! Resolves a texture in a BSP File to an image
use crate::draw::texture::image::LoadableImage;
use stockton_levels::traits::textures::Texture;
use image::{io::Reader, RgbaImage};
use std::path::Path;
/// An object that can be used to resolve a texture from a BSP File
pub trait TextureResolver<T: LoadableImage> {
/// Get the given texture, or None if it's corrupt/not there.
fn resolve(&mut self, texture: &Texture) -> Option<T>;
}
/// A basic filesystem resolver which expects no file extension and guesses the image format
pub struct BasicFSResolver<'a> {
path: &'a Path,
}
impl<'a> BasicFSResolver<'a> {
pub fn new(path: &'a Path) -> BasicFSResolver<'a> {
BasicFSResolver { path }
}
}
impl<'a> TextureResolver<RgbaImage> for BasicFSResolver<'a> {
fn resolve(&mut self, tex: &Texture) -> Option<RgbaImage> {
let path = self.path.join(&tex.name);
if let Ok(file) = Reader::open(path) {
if let Ok(guessed) = file.with_guessed_format() {
if let Ok(decoded) = guessed.decode() {
return Some(decoded.into_rgba());
}
}
}
None
}
}
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