pixi-basis-ktx2
Version:
Loader for the *.basis & *.ktx2 supercompressed texture file format. This package also ships with the transcoder!
87 lines • 4.3 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.loadKTX2 = void 0;
exports.loadKTX2BufferToTexture = loadKTX2BufferToTexture;
exports.loadKTX2BufferToArray = loadKTX2BufferToArray;
/* eslint-disable @typescript-eslint/no-unsafe-argument */
const assets_1 = require("@pixi/assets");
const compressed_textures_1 = require("@pixi/compressed-textures");
const core_1 = require("@pixi/core");
const Basis_1 = require("../Basis");
const TranscoderWorkerKTX2_1 = require("../TranscoderWorkerKTX2");
const KTX2Parser_1 = require("./KTX2Parser");
/** Load KTX2 textures! */
exports.loadKTX2 = {
extension: {
type: core_1.ExtensionType.LoadParser,
priority: assets_1.LoaderParserPriority.High,
},
name: 'loadKTX2',
test(url) {
return (0, assets_1.checkExtension)(url, '.ktx2');
},
async load(url, asset, loader) {
await TranscoderWorkerKTX2_1.TranscoderWorkerKTX2.onTranscoderInitialized;
// get an array buffer...
const response = await core_1.settings.ADAPTER.fetch(url);
const arrayBuffer = await response.arrayBuffer();
const resources = await KTX2Parser_1.KTX2Parser.transcode(arrayBuffer);
const type = resources?.basisFormat ? Basis_1.BASIS_FORMAT_TO_TYPE[resources?.basisFormat] : undefined;
const format = resources?.basisFormat !== Basis_1.BASIS_FORMATS.cTFRGBA32 ? core_1.FORMATS.RGB : core_1.FORMATS.RGBA;
const textures = resources?.map((resource) => {
const base = new core_1.BaseTexture(resource, {
mipmap: resource instanceof compressed_textures_1.CompressedTextureResource && resource.levels > 1 ? core_1.MIPMAP_MODES.ON_MANUAL : core_1.MIPMAP_MODES.OFF,
alphaMode: core_1.ALPHA_MODES.NO_PREMULTIPLIED_ALPHA,
type,
format,
...asset.data,
});
return (0, assets_1.createTexture)(base, loader, url);
}) ?? [];
return textures.length === 1 ? textures[0] : textures;
},
unload(texture) {
if (Array.isArray(texture)) {
texture.forEach((t) => t.destroy(true));
}
else {
texture.destroy(true);
}
},
};
core_1.extensions.add(exports.loadKTX2);
async function loadKTX2BufferToTexture(byteArr, fileName, loader) {
await TranscoderWorkerKTX2_1.TranscoderWorkerKTX2.onTranscoderInitialized;
const resources = await KTX2Parser_1.KTX2Parser.transcode(byteArr.buffer);
const type = resources?.basisFormat ? Basis_1.BASIS_FORMAT_TO_TYPE[resources?.basisFormat] : undefined;
const format = resources?.basisFormat !== Basis_1.BASIS_FORMATS.cTFRGBA32 ? core_1.FORMATS.RGB : core_1.FORMATS.RGBA;
if (!resources || !resources[0])
return undefined;
const mainResource = resources[0];
const base = new core_1.BaseTexture(mainResource, {
mipmap: mainResource instanceof compressed_textures_1.CompressedTextureResource && mainResource.levels > 1 ? core_1.MIPMAP_MODES.ON_MANUAL : core_1.MIPMAP_MODES.OFF,
alphaMode: core_1.ALPHA_MODES.NO_PREMULTIPLIED_ALPHA,
type,
format,
});
const texture = (0, assets_1.createTexture)(base, loader, fileName);
return texture;
}
async function loadKTX2BufferToArray(byteArr, fileName, loader) {
await TranscoderWorkerKTX2_1.TranscoderWorkerKTX2.onTranscoderInitialized;
const resources = await KTX2Parser_1.KTX2Parser.transcode(byteArr.buffer);
const type = resources?.basisFormat ? Basis_1.BASIS_FORMAT_TO_TYPE[resources?.basisFormat] : undefined;
const format = resources?.basisFormat !== Basis_1.BASIS_FORMATS.cTFRGBA32 ? core_1.FORMATS.RGB : core_1.FORMATS.RGBA;
const textures = resources?.map((resource) => {
const base = new core_1.BaseTexture(resource, {
mipmap: resource instanceof compressed_textures_1.CompressedTextureResource && resource.levels > 1 ? core_1.MIPMAP_MODES.ON_MANUAL : core_1.MIPMAP_MODES.OFF,
alphaMode: core_1.ALPHA_MODES.NO_PREMULTIPLIED_ALPHA,
type,
format,
});
const texture = (0, assets_1.createTexture)(base, loader, fileName);
return texture;
}) ?? [];
return textures;
}
//# sourceMappingURL=loadKTX2.js.map