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|
use super::*;
use msh_core::parse_model_payload;
use nres::Archive;
use std::fs;
use std::path::{Path, PathBuf};
fn collect_files_recursive(root: &Path, out: &mut Vec<PathBuf>) {
let Ok(entries) = fs::read_dir(root) else {
return;
};
for entry in entries.flatten() {
let path = entry.path();
if path.is_dir() {
collect_files_recursive(&path, out);
} else if path.is_file() {
out.push(path);
}
}
}
fn nres_test_files() -> Vec<PathBuf> {
let root = Path::new(env!("CARGO_MANIFEST_DIR"))
.join("..")
.join("..")
.join("testdata");
let mut files = Vec::new();
collect_files_recursive(&root, &mut files);
files.sort();
files
.into_iter()
.filter(|path| {
fs::read(path)
.map(|bytes| bytes.get(0..4) == Some(b"NRes"))
.unwrap_or(false)
})
.collect()
}
#[test]
fn build_render_mesh_for_real_models() {
let archives = nres_test_files();
if archives.is_empty() {
eprintln!("skipping build_render_mesh_for_real_models: no NRes files in testdata");
return;
}
let mut models_checked = 0usize;
let mut meshes_non_empty = 0usize;
let mut bounds_non_empty = 0usize;
for archive_path in archives {
let archive = Archive::open_path(&archive_path)
.unwrap_or_else(|err| panic!("failed to open {}: {err}", archive_path.display()));
for entry in archive.entries() {
if !entry.meta.name.to_ascii_lowercase().ends_with(".msh") {
continue;
}
models_checked += 1;
let payload = archive.read(entry.id).unwrap_or_else(|err| {
panic!(
"failed to read model '{}' from {}: {err}",
entry.meta.name,
archive_path.display()
)
});
let model = parse_model_payload(payload.as_slice()).unwrap_or_else(|err| {
panic!(
"failed to parse model '{}' from {}: {err}",
entry.meta.name,
archive_path.display()
)
});
let mesh = build_render_mesh(&model, 0, 0);
if !mesh.vertices.is_empty() {
meshes_non_empty += 1;
}
if compute_bounds_for_mesh(&mesh.vertices).is_some() {
bounds_non_empty += 1;
}
for vertex in &mesh.vertices {
assert!(
vertex.uv0[0].is_finite() && vertex.uv0[1].is_finite(),
"UV must be finite for '{}' in {}",
entry.meta.name,
archive_path.display()
);
}
}
}
assert!(models_checked > 0, "no MSH models found");
assert!(
meshes_non_empty > 0,
"all generated render meshes are empty"
);
assert_eq!(
meshes_non_empty, bounds_non_empty,
"bounds must be available for every non-empty mesh"
);
}
#[test]
fn compute_bounds_handles_empty_and_non_empty() {
assert!(compute_bounds(&[]).is_none());
let bounds = compute_bounds(&[[1.0, 2.0, 3.0], [-2.0, 5.0, 0.5], [0.0, -1.0, 9.0]])
.expect("bounds expected");
assert_eq!(bounds.0, [-2.0, -1.0, 0.5]);
assert_eq!(bounds.1, [1.0, 5.0, 9.0]);
}
#[test]
fn compute_bounds_for_mesh_handles_empty_and_non_empty() {
assert!(compute_bounds_for_mesh(&[]).is_none());
let bounds = compute_bounds_for_mesh(&[
RenderVertex {
position: [1.0, 2.0, 3.0],
uv0: [0.0, 0.0],
},
RenderVertex {
position: [-2.0, 5.0, 0.5],
uv0: [0.2, 0.3],
},
RenderVertex {
position: [0.0, -1.0, 9.0],
uv0: [1.0, 1.0],
},
])
.expect("bounds expected");
assert_eq!(bounds.0, [-2.0, -1.0, 0.5]);
assert_eq!(bounds.1, [1.0, 5.0, 9.0]);
}
fn nodes_with_slot_refs(slot_ids: &[Option<u16>]) -> Vec<u8> {
let mut out = vec![0u8; slot_ids.len().saturating_mul(38)];
for (node_index, slot_id) in slot_ids.iter().copied().enumerate() {
let node_off = node_index * 38;
for i in 0..15 {
let off = node_off + 8 + i * 2;
out[off..off + 2].copy_from_slice(&u16::MAX.to_le_bytes());
}
if let Some(slot_id) = slot_id {
out[node_off + 8..node_off + 10].copy_from_slice(&slot_id.to_le_bytes());
}
}
out
}
fn slot(batch_start: u16, batch_count: u16) -> msh_core::Slot {
msh_core::Slot {
tri_start: 0,
tri_count: 0,
batch_start,
batch_count,
aabb_min: [0.0; 3],
aabb_max: [0.0; 3],
sphere_center: [0.0; 3],
sphere_radius: 0.0,
opaque: [0; 5],
}
}
fn batch(index_start: u32, index_count: u16, base_vertex: u32) -> msh_core::Batch {
msh_core::Batch {
batch_flags: 0,
material_index: 0,
opaque4: 0,
opaque6: 0,
index_count,
index_start,
opaque14: 0,
base_vertex,
}
}
#[test]
fn build_render_mesh_handles_empty_slot_model() {
let model = msh_core::Model {
node_stride: 38,
node_count: 1,
nodes_raw: nodes_with_slot_refs(&[None]),
slots: Vec::new(),
positions: vec![[0.0, 0.0, 0.0]],
normals: None,
uv0: None,
indices: Vec::new(),
batches: Vec::new(),
node_names: None,
};
let mesh = build_render_mesh(&model, 0, 0);
assert!(mesh.vertices.is_empty());
assert_eq!(mesh.batch_count, 0);
assert_eq!(mesh.triangle_count(), 0);
}
#[test]
fn build_render_mesh_supports_multi_node_and_uv_scaling() {
let model = msh_core::Model {
node_stride: 38,
node_count: 2,
nodes_raw: nodes_with_slot_refs(&[Some(0), Some(1)]),
slots: vec![slot(0, 1), slot(1, 1)],
positions: vec![
[0.0, 0.0, 0.0],
[1.0, 0.0, 0.0],
[0.0, 1.0, 0.0],
[2.0, 0.0, 0.0],
[3.0, 0.0, 0.0],
[2.0, 1.0, 0.0],
],
normals: None,
uv0: Some(vec![
[1024, -1024],
[512, 256],
[0, 0],
[1024, 1024],
[2048, 1024],
[1024, 0],
]),
indices: vec![0, 1, 2, 0, 1, 2],
batches: vec![batch(0, 3, 0), batch(3, 3, 3)],
node_names: None,
};
let mesh = build_render_mesh(&model, 0, 0);
assert_eq!(mesh.batch_count, 2);
assert_eq!(mesh.vertices.len(), 6);
assert_eq!(mesh.triangle_count(), 2);
assert_eq!(mesh.vertices[0].uv0, [1.0, -1.0]);
assert_eq!(mesh.vertices[1].uv0, [0.5, 0.25]);
assert_eq!(mesh.vertices[2].uv0, [0.0, 0.0]);
assert_eq!(mesh.vertices[3].uv0, [1.0, 1.0]);
}
|
