abrasion/engine/src/render/mesh.rs

84 lines
2.5 KiB
Rust

// Copyright 2020 Sergiusz 'q3k' Bazanski <q3k@q3k.org>
//
// This file is part of Abrasion.
//
// Abrasion 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, version 3.
//
// Abrasion 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
// Abrasion. If not, see <https://www.gnu.org/licenses/>.
use std::sync::Arc;
use std::time;
use std::sync::Mutex;
use vulkano::device as vd;
use vulkano::buffer as vb;
use vulkano::sync::GpuFuture;
use crate::render::vulkan::data;
pub struct Mesh {
vertices: Arc<Vec<data::Vertex>>,
indices: Arc<Vec<u16>>,
pub id: u64,
// vulkan buffers cache
vulkan: Mutex<Option<data::VertexData>>,
}
impl Mesh {
pub fn new(
vertices: Arc<Vec<data::Vertex>>,
indices: Arc<Vec<u16>>,
) -> Self {
Self {
vertices, indices,
// TODO: use a better method
id: time::SystemTime::now().duration_since(time::UNIX_EPOCH).unwrap().as_nanos() as u64,
vulkan: Mutex::new(None),
}
}
pub fn vulkan_buffers(
&self,
graphics_queue: Arc<vd::Queue>,
) -> (
Arc<vb::ImmutableBuffer<[data::Vertex]>>,
Arc<vb::ImmutableBuffer<[u16]>>,
) {
let mut cache = self.vulkan.lock().unwrap();
match &mut *cache {
Some(data) => (data.vbuffer.clone(), data.ibuffer.clone()),
None => {
let (vbuffer, vfuture) = vb::immutable::ImmutableBuffer::from_iter(
self.vertices.iter().cloned(),
vb::BufferUsage::vertex_buffer(),
graphics_queue.clone(),
).unwrap();
let (ibuffer, ifuture) = vb::immutable::ImmutableBuffer::from_iter(
self.indices.iter().cloned(),
vb::BufferUsage::index_buffer(),
graphics_queue.clone(),
).unwrap();
vfuture.flush().unwrap();
ifuture.flush().unwrap();
*cache = Some(data::VertexData {
vbuffer: vbuffer.clone(),
ibuffer: ibuffer.clone(),
});
(vbuffer.clone(), ibuffer.clone())
},
}
}
}