Files
nothoughts/node_modules/pixi.js/lib/scene/text-bitmap/asset/loadBitmapFont.mjs
2025-08-04 18:57:35 +02:00

80 lines
2.7 KiB
JavaScript

import { LoaderParserPriority } from '../../../assets/loader/parsers/LoaderParser.mjs';
import { copySearchParams } from '../../../assets/utils/copySearchParams.mjs';
import { DOMAdapter } from '../../../environment/adapter.mjs';
import { ExtensionType } from '../../../extensions/Extensions.mjs';
import { path } from '../../../utils/path.mjs';
import { BitmapFont } from '../BitmapFont.mjs';
import { bitmapFontTextParser } from './bitmapFontTextParser.mjs';
import { bitmapFontXMLStringParser } from './bitmapFontXMLStringParser.mjs';
"use strict";
const validExtensions = [".xml", ".fnt"];
const bitmapFontCachePlugin = {
extension: {
type: ExtensionType.CacheParser,
name: "cacheBitmapFont"
},
test: (asset) => asset instanceof BitmapFont,
getCacheableAssets(keys, asset) {
const out = {};
keys.forEach((key) => {
out[key] = asset;
out[`${key}-bitmap`] = asset;
});
out[`${asset.fontFamily}-bitmap`] = asset;
return out;
}
};
const loadBitmapFont = {
extension: {
type: ExtensionType.LoadParser,
priority: LoaderParserPriority.Normal
},
name: "loadBitmapFont",
test(url) {
return validExtensions.includes(path.extname(url).toLowerCase());
},
async testParse(data) {
return bitmapFontTextParser.test(data) || bitmapFontXMLStringParser.test(data);
},
async parse(asset, data, loader) {
const bitmapFontData = bitmapFontTextParser.test(asset) ? bitmapFontTextParser.parse(asset) : bitmapFontXMLStringParser.parse(asset);
const { src } = data;
const { pages } = bitmapFontData;
const textureUrls = [];
const textureOptions = bitmapFontData.distanceField ? {
scaleMode: "linear",
alphaMode: "premultiply-alpha-on-upload",
autoGenerateMipmaps: false,
resolution: 1
} : {};
for (let i = 0; i < pages.length; ++i) {
const pageFile = pages[i].file;
let imagePath = path.join(path.dirname(src), pageFile);
imagePath = copySearchParams(imagePath, src);
textureUrls.push({
src: imagePath,
data: textureOptions
});
}
const loadedTextures = await loader.load(textureUrls);
const textures = textureUrls.map((url) => loadedTextures[url.src]);
const bitmapFont = new BitmapFont({
data: bitmapFontData,
textures
}, src);
return bitmapFont;
},
async load(url, _options) {
const response = await DOMAdapter.get().fetch(url);
return await response.text();
},
async unload(bitmapFont, _resolvedAsset, loader) {
await Promise.all(bitmapFont.pages.map((page) => loader.unload(page.texture.source._sourceOrigin)));
bitmapFont.destroy();
}
};
export { bitmapFontCachePlugin, loadBitmapFont };
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