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core/tile_mipmapper: fix file meta version for mipmap tiles

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The meta version should only change when the outputs must be regenerated
even if the inputs stay the same. This should never be the case for
mipmap tiles, so we separate the meta version from map/lightmap tiles.
This commit is contained in:
Matthias Schiffer 2024-01-08 02:35:05 +01:00
parent f79edb462c
commit 0988ebe095
Signed by: neocturne
GPG key ID: 16EF3F64CB201D9C
2 changed files with 16 additions and 10 deletions
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5
src/core/common.rs
View file

@ -31,6 +31,11 @@ pub const MAP_FILE_META_VERSION: FileMetaVersion = FileMetaVersion(0);
/// (usually because of updated resource data)
pub const LIGHTMAP_FILE_META_VERSION: FileMetaVersion = FileMetaVersion(0);
/// MinedMap mipmap data version number
///
/// Increase when the mipmap generation changes (this should not happen)
pub const MIPMAP_FILE_META_VERSION: FileMetaVersion = FileMetaVersion(0);
/// Coordinate pair of a generated tile
///
/// Each tile corresponds to one Minecraft region file

21
src/core/tile_mipmapper.rs
View file

@ -70,12 +70,8 @@ impl<'a> TileMipmapper<'a> {
/// Tile width/height
const N: u32 = (BLOCKS_PER_CHUNK * CHUNKS_PER_REGION) as u32;
let version = match kind {
TileKind::Map => REGION_FILE_META_VERSION,
TileKind::Lightmap => LIGHTMAP_FILE_META_VERSION,
};
let output_path = self.config.tile_path(kind, level, coords);
let output_timestamp = fs::read_timestamp(&output_path, version);
let output_timestamp = fs::read_timestamp(&output_path, MIPMAP_FILE_META_VERSION);
let sources: Vec<_> = [(0, 0), (0, 1), (1, 0), (1, 1)]
.into_iter()
@ -149,11 +145,16 @@ impl<'a> TileMipmapper<'a> {
);
}
fs::create_with_timestamp(&output_path, version, input_timestamp, |file| {
image
.write_to(file, image::ImageFormat::Png)
.context("Failed to save image")
})?;
fs::create_with_timestamp(
&output_path,
MIPMAP_FILE_META_VERSION,
input_timestamp,
|file| {
image
.write_to(file, image::ImageFormat::Png)
.context("Failed to save image")
},
)?;
count_processed.send(()).unwrap();
Ok(())