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Refactored xj parsing code somewhat.

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This commit is contained in:
Daan Vanden Bosch 2019-07-16 17:12:57 +02:00
parent 769e0e8377
commit 3122c256fb
1 changed files with 66 additions and 74 deletions
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140
src/data_formats/parsing/ninja/xj.ts
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@ -61,80 +61,75 @@ export function parse_xj_model(cursor: Cursor): XjModel {
logger.warn(`Vertex info count of ${vertex_info_count} was larger than expected.`);
}
cursor.seek_start(vertex_info_table_offset);
const vertex_type = cursor.u16();
cursor.seek(2); // Flags?
const vertex_table_offset = cursor.u32();
const vertex_size = cursor.u32();
const vertex_count = cursor.u32();
for (let i = 0; i < vertex_count; ++i) {
cursor.seek_start(vertex_table_offset + i * vertex_size);
const position = cursor.vec3_f32();
let normal: Vec3 | undefined;
let uv: Vec2 | undefined;
switch (vertex_type) {
case 3:
normal = cursor.vec3_f32();
uv = cursor.vec2_f32();
break;
case 4:
// Skip 4 bytes.
break;
case 5:
cursor.seek(4);
uv = cursor.vec2_f32();
break;
case 6:
normal = cursor.vec3_f32();
// Skip 4 bytes.
break;
case 7:
normal = cursor.vec3_f32();
uv = cursor.vec2_f32();
break;
default:
logger.warn(`Unknown vertex type ${vertex_type} with size ${vertex_size}.`);
break;
}
// if (vertex_size === 28 || vertex_size === 32 || vertex_size === 36) {
// normal = cursor.vec3_f32();
// }
// if (vertex_size === 24 || vertex_size === 32 || vertex_size === 36) {
// uv = cursor.vec2_f32();
// }
model.vertices.push({
position,
normal,
uv,
});
}
model.vertices.push(...parse_vertex_info_table(cursor, vertex_info_table_offset));
}
if (triangle_strip_table_offset) {
model.meshes.push(
...parse_triangle_strip_table(cursor, triangle_strip_table_offset, triangle_strip_count)
);
}
model.meshes.push(
...parse_triangle_strip_table(cursor, triangle_strip_table_offset, triangle_strip_count)
);
if (transparent_triangle_strip_table_offset) {
model.meshes.push(
...parse_triangle_strip_table(
cursor,
transparent_triangle_strip_table_offset,
transparent_triangle_strip_count
)
);
}
model.meshes.push(
...parse_triangle_strip_table(
cursor,
transparent_triangle_strip_table_offset,
transparent_triangle_strip_count
)
);
return model;
}
function parse_vertex_info_table(cursor: Cursor, vertex_info_table_offset: number): XjVertex[] {
cursor.seek_start(vertex_info_table_offset);
const vertex_type = cursor.u16();
cursor.seek(2); // Flags?
const vertex_table_offset = cursor.u32();
const vertex_size = cursor.u32();
const vertex_count = cursor.u32();
const vertices: XjVertex[] = [];
for (let i = 0; i < vertex_count; ++i) {
cursor.seek_start(vertex_table_offset + i * vertex_size);
const position = cursor.vec3_f32();
let normal: Vec3 | undefined;
let uv: Vec2 | undefined;
switch (vertex_type) {
case 3:
normal = cursor.vec3_f32();
uv = cursor.vec2_f32();
break;
case 4:
// Skip 4 bytes.
break;
case 5:
cursor.seek(4);
uv = cursor.vec2_f32();
break;
case 6:
normal = cursor.vec3_f32();
// Skip 4 bytes.
break;
case 7:
normal = cursor.vec3_f32();
uv = cursor.vec2_f32();
break;
default:
logger.warn(`Unknown vertex type ${vertex_type} with size ${vertex_size}.`);
break;
}
vertices.push({
position,
normal,
uv,
});
}
return vertices;
}
function parse_triangle_strip_table(
cursor: Cursor,
triangle_strip_list_offset: number,
@ -189,13 +184,10 @@ function parse_triangle_strip_material_properties(
props.texture_id = cursor.u32();
break;
case 5:
{
const rgba = cursor.u32();
props.diffuse_r = (rgba & 0xff) / 0xff;
props.diffuse_g = ((rgba >>> 8) & 0xff) / 0xff;
props.diffuse_b = ((rgba >>> 16) & 0xff) / 0xff;
props.diffuse_a = ((rgba >>> 24) & 0xff) / 0xff;
}
props.diffuse_r = cursor.u8();
props.diffuse_g = cursor.u8();
props.diffuse_b = cursor.u8();
props.diffuse_a = cursor.u8();
break;
}
}