hpg-r3f-model-scene
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Pretty Footer react component used in ant.design
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JavaScript
import _defineProperty from "@babel/runtime/helpers/esm/defineProperty";
import _asyncToGenerator from "@babel/runtime/helpers/esm/asyncToGenerator";
import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
import _classCallCheck from "@babel/runtime/helpers/esm/classCallCheck";
import _createClass from "@babel/runtime/helpers/esm/createClass";
import _inherits from "@babel/runtime/helpers/esm/inherits";
import _createSuper from "@babel/runtime/helpers/esm/createSuper";
var _FORMAT_MAP, _TYPE_MAP, _COLOR_SPACE_MAP;
import _regeneratorRuntime from "@babel/runtime/regenerator";
/**
* Loader for KTX 2.0 GPU Texture containers.
*
* KTX 2.0 is a container format for various GPU texture formats. The loader
* supports Basis Universal GPU textures, which can be quickly transcoded to
* a wide variety of GPU texture compression formats, as well as some
* uncompressed DataTexture and Data3DTexture formats.
*
* References:
* - KTX: http://github.khronos.org/KTX-Specification/
* - DFD: https://www.khronos.org/registry/DataFormat/specs/1.3/dataformat.1.3.html#basicdescriptor
*/
import { CompressedTexture, CompressedArrayTexture, Data3DTexture, DataTexture, FileLoader, FloatType, HalfFloatType, NoColorSpace, LinearFilter, LinearMipmapLinearFilter, Loader, RedFormat, RGB_ETC1_Format, RGB_ETC2_Format, RGB_PVRTC_4BPPV1_Format, RGB_S3TC_DXT1_Format, RGBA_ASTC_4x4_Format, RGBA_BPTC_Format, RGBA_ETC2_EAC_Format, RGBA_PVRTC_4BPPV1_Format, RGBA_S3TC_DXT5_Format, RGBAFormat, RGFormat, SRGBColorSpace, UnsignedByteType } from 'three';
import * as THREE from 'three';
import { WorkerPool } from './WorkerPool.js';
import { read, KHR_DF_FLAG_ALPHA_PREMULTIPLIED, KHR_DF_TRANSFER_SRGB, KHR_SUPERCOMPRESSION_NONE, KHR_SUPERCOMPRESSION_ZSTD, VK_FORMAT_UNDEFINED, VK_FORMAT_R16_SFLOAT, VK_FORMAT_R16G16_SFLOAT, VK_FORMAT_R16G16B16A16_SFLOAT, VK_FORMAT_R32_SFLOAT, VK_FORMAT_R32G32_SFLOAT, VK_FORMAT_R32G32B32A32_SFLOAT, VK_FORMAT_R8_SRGB, VK_FORMAT_R8_UNORM, VK_FORMAT_R8G8_SRGB, VK_FORMAT_R8G8_UNORM, VK_FORMAT_R8G8B8A8_SRGB, VK_FORMAT_R8G8B8A8_UNORM } from './ktx-parse.module.js';
import { ZSTDDecoder } from './zstddec.module.js';
var _taskCache = new WeakMap();
var _activeLoaders = 0;
var _zstd;
var KTX2Loader = /*#__PURE__*/function (_Loader) {
_inherits(KTX2Loader, _Loader);
var _super = _createSuper(KTX2Loader);
function KTX2Loader(manager) {
var _this;
_classCallCheck(this, KTX2Loader);
_this = _super.call(this, manager);
_this.transcoderPath = '';
_this.transcoderBinary = null;
_this.transcoderPending = null;
_this.workerPool = new WorkerPool();
_this.workerSourceURL = '';
_this.workerConfig = null;
if (typeof MSC_TRANSCODER !== 'undefined') {
console.warn('THREE.KTX2Loader: Please update to latest "basis_transcoder".' + ' "msc_basis_transcoder" is no longer supported in three.js r125+.');
}
return _this;
}
_createClass(KTX2Loader, [{
key: "setTranscoderPath",
value: function setTranscoderPath(path) {
this.transcoderPath = path;
return this;
}
}, {
key: "setWorkerLimit",
value: function setWorkerLimit(num) {
this.workerPool.setWorkerLimit(num);
return this;
}
}, {
key: "detectSupport",
value: function detectSupport(renderer) {
this.workerConfig = {
astcSupported: renderer.extensions.has('WEBGL_compressed_texture_astc'),
etc1Supported: renderer.extensions.has('WEBGL_compressed_texture_etc1'),
etc2Supported: renderer.extensions.has('WEBGL_compressed_texture_etc'),
dxtSupported: renderer.extensions.has('WEBGL_compressed_texture_s3tc'),
bptcSupported: renderer.extensions.has('EXT_texture_compression_bptc'),
pvrtcSupported: renderer.extensions.has('WEBGL_compressed_texture_pvrtc') || renderer.extensions.has('WEBKIT_WEBGL_compressed_texture_pvrtc')
};
if (renderer.capabilities.isWebGL2) {
// https://github.com/mrdoob/three.js/pull/22928
this.workerConfig.etc1Supported = false;
}
return this;
}
}, {
key: "init",
value: function init() {
var _this2 = this;
if (!this.transcoderPending) {
// Load transcoder wrapper.
var jsLoader = new FileLoader(this.manager);
jsLoader.setPath(this.transcoderPath);
jsLoader.setWithCredentials(this.withCredentials);
var jsContent = jsLoader.loadAsync('basis_transcoder.js');
// Load transcoder WASM binary.
var binaryLoader = new FileLoader(this.manager);
binaryLoader.setPath(this.transcoderPath);
binaryLoader.setResponseType('arraybuffer');
binaryLoader.setWithCredentials(this.withCredentials);
var binaryContent = binaryLoader.loadAsync('basis_transcoder.wasm');
this.transcoderPending = Promise.all([jsContent, binaryContent]).then(function (_ref) {
var _ref2 = _slicedToArray(_ref, 2),
jsContent = _ref2[0],
binaryContent = _ref2[1];
var fn = KTX2Loader.BasisWorker.toString();
var body = ['/* constants */', 'let _EngineFormat = ' + JSON.stringify(KTX2Loader.EngineFormat), 'let _TranscoderFormat = ' + JSON.stringify(KTX2Loader.TranscoderFormat), 'let _BasisFormat = ' + JSON.stringify(KTX2Loader.BasisFormat), '/* basis_transcoder.js */', jsContent, '/* worker */', fn.substring(fn.indexOf('{') + 1, fn.lastIndexOf('}'))].join('\n');
_this2.workerSourceURL = URL.createObjectURL(new Blob([body]));
_this2.transcoderBinary = binaryContent;
_this2.workerPool.setWorkerCreator(function () {
var worker = new Worker(_this2.workerSourceURL);
var transcoderBinary = _this2.transcoderBinary.slice(0);
worker.postMessage({
type: 'init',
config: _this2.workerConfig,
transcoderBinary: transcoderBinary
}, [transcoderBinary]);
return worker;
});
});
if (_activeLoaders > 0) {
// Each instance loads a transcoder and allocates workers, increasing network and memory cost.
console.warn('THREE.KTX2Loader: Multiple active KTX2 loaders may cause performance issues.' + ' Use a single KTX2Loader instance, or call .dispose() on old instances.');
}
_activeLoaders++;
}
return this.transcoderPending;
}
}, {
key: "load",
value: function load(url, onLoad, onProgress, onError) {
var _this3 = this;
if (this.workerConfig === null) {
throw new Error('THREE.KTX2Loader: Missing initialization with `.detectSupport( renderer )`.');
}
var loader = new FileLoader(this.manager);
loader.setResponseType('arraybuffer');
loader.setWithCredentials(this.withCredentials);
loader.load(url, function (buffer) {
// Check for an existing task using this buffer. A transferred buffer cannot be transferred
// again from this thread.
if (_taskCache.has(buffer)) {
var cachedTask = _taskCache.get(buffer);
return cachedTask.promise.then(onLoad).catch(onError);
}
_this3._createTexture(buffer).then(function (texture) {
return onLoad ? onLoad(texture) : null;
}).catch(onError);
}, onProgress, onError);
}
}, {
key: "_createTextureFrom",
value: function _createTextureFrom(transcodeResult, container) {
var mipmaps = transcodeResult.mipmaps,
width = transcodeResult.width,
height = transcodeResult.height,
format = transcodeResult.format,
type = transcodeResult.type,
error = transcodeResult.error,
dfdTransferFn = transcodeResult.dfdTransferFn,
dfdFlags = transcodeResult.dfdFlags;
if (type === 'error') return Promise.reject(error);
var texture = container.layerCount > 1 ? new CompressedArrayTexture(mipmaps, width, height, container.layerCount, format, UnsignedByteType) : new CompressedTexture(mipmaps, width, height, format, UnsignedByteType);
texture.minFilter = mipmaps.length === 1 ? LinearFilter : LinearMipmapLinearFilter;
texture.magFilter = LinearFilter;
texture.generateMipmaps = false;
texture.needsUpdate = true;
// TODO: Detect NoColorSpace vs. LinearSRGBColorSpace based on primaries.
texture.colorSpace = dfdTransferFn === KHR_DF_TRANSFER_SRGB ? THREE.SRGBColorSpace : THREE.NoColorSpace;
texture.premultiplyAlpha = !!(dfdFlags & KHR_DF_FLAG_ALPHA_PREMULTIPLIED);
return texture;
}
/**
* @param {ArrayBuffer} buffer
* @param {object?} config
* @return {Promise<CompressedTexture|CompressedArrayTexture|DataTexture|Data3DTexture>}
*/
}, {
key: "_createTexture",
value: function () {
var _createTexture2 = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime.mark(function _callee(buffer) {
var _this4 = this;
var config,
container,
taskConfig,
texturePending,
_args = arguments;
return _regeneratorRuntime.wrap(function _callee$(_context) {
while (1) switch (_context.prev = _context.next) {
case 0:
config = _args.length > 1 && _args[1] !== undefined ? _args[1] : {};
container = read(new Uint8Array(buffer));
if (!(container.vkFormat !== VK_FORMAT_UNDEFINED)) {
_context.next = 4;
break;
}
return _context.abrupt("return", createDataTexture(container));
case 4:
//
taskConfig = config;
texturePending = this.init().then(function () {
return _this4.workerPool.postMessage({
type: 'transcode',
buffer: buffer,
taskConfig: taskConfig
}, [buffer]);
}).then(function (e) {
return _this4._createTextureFrom(e.data, container);
}); // Cache the task result.
_taskCache.set(buffer, {
promise: texturePending
});
return _context.abrupt("return", texturePending);
case 8:
case "end":
return _context.stop();
}
}, _callee, this);
}));
function _createTexture(_x) {
return _createTexture2.apply(this, arguments);
}
return _createTexture;
}()
}, {
key: "dispose",
value: function dispose() {
this.workerPool.dispose();
if (this.workerSourceURL) URL.revokeObjectURL(this.workerSourceURL);
_activeLoaders--;
return this;
}
}]);
return KTX2Loader;
}(Loader);
/* CONSTANTS */
KTX2Loader.BasisFormat = {
ETC1S: 0,
UASTC_4x4: 1
};
KTX2Loader.TranscoderFormat = {
ETC1: 0,
ETC2: 1,
BC1: 2,
BC3: 3,
BC4: 4,
BC5: 5,
BC7_M6_OPAQUE_ONLY: 6,
BC7_M5: 7,
PVRTC1_4_RGB: 8,
PVRTC1_4_RGBA: 9,
ASTC_4x4: 10,
ATC_RGB: 11,
ATC_RGBA_INTERPOLATED_ALPHA: 12,
RGBA32: 13,
RGB565: 14,
BGR565: 15,
RGBA4444: 16
};
KTX2Loader.EngineFormat = {
RGBAFormat: RGBAFormat,
RGBA_ASTC_4x4_Format: RGBA_ASTC_4x4_Format,
RGBA_BPTC_Format: RGBA_BPTC_Format,
RGBA_ETC2_EAC_Format: RGBA_ETC2_EAC_Format,
RGBA_PVRTC_4BPPV1_Format: RGBA_PVRTC_4BPPV1_Format,
RGBA_S3TC_DXT5_Format: RGBA_S3TC_DXT5_Format,
RGB_ETC1_Format: RGB_ETC1_Format,
RGB_ETC2_Format: RGB_ETC2_Format,
RGB_PVRTC_4BPPV1_Format: RGB_PVRTC_4BPPV1_Format,
RGB_S3TC_DXT1_Format: RGB_S3TC_DXT1_Format
};
/* WEB WORKER */
KTX2Loader.BasisWorker = function () {
var config;
var transcoderPending;
var BasisModule;
var EngineFormat = _EngineFormat; // eslint-disable-line no-undef
var TranscoderFormat = _TranscoderFormat; // eslint-disable-line no-undef
var BasisFormat = _BasisFormat; // eslint-disable-line no-undef
self.addEventListener('message', function (e) {
var message = e.data;
switch (message.type) {
case 'init':
config = message.config;
init(message.transcoderBinary);
break;
case 'transcode':
transcoderPending.then(function () {
try {
var _transcode = transcode(message.buffer),
width = _transcode.width,
height = _transcode.height,
hasAlpha = _transcode.hasAlpha,
mipmaps = _transcode.mipmaps,
format = _transcode.format,
dfdTransferFn = _transcode.dfdTransferFn,
dfdFlags = _transcode.dfdFlags;
var buffers = [];
for (var i = 0; i < mipmaps.length; ++i) {
buffers.push(mipmaps[i].data.buffer);
}
self.postMessage({
type: 'transcode',
id: message.id,
width: width,
height: height,
hasAlpha: hasAlpha,
mipmaps: mipmaps,
format: format,
dfdTransferFn: dfdTransferFn,
dfdFlags: dfdFlags
}, buffers);
} catch (error) {
console.error(error);
self.postMessage({
type: 'error',
id: message.id,
error: error.message
});
}
});
break;
}
});
function init(wasmBinary) {
transcoderPending = new Promise(function (resolve) {
BasisModule = {
wasmBinary: wasmBinary,
onRuntimeInitialized: resolve
};
BASIS(BasisModule); // eslint-disable-line no-undef
}).then(function () {
BasisModule.initializeBasis();
if (BasisModule.KTX2File === undefined) {
console.warn('THREE.KTX2Loader: Please update Basis Universal transcoder.');
}
});
}
function transcode(buffer) {
var ktx2File = new BasisModule.KTX2File(new Uint8Array(buffer));
function cleanup() {
ktx2File.close();
ktx2File.delete();
}
if (!ktx2File.isValid()) {
cleanup();
throw new Error('THREE.KTX2Loader: Invalid or unsupported .ktx2 file');
}
var basisFormat = ktx2File.isUASTC() ? BasisFormat.UASTC_4x4 : BasisFormat.ETC1S;
var width = ktx2File.getWidth();
var height = ktx2File.getHeight();
var layers = ktx2File.getLayers() || 1;
var levels = ktx2File.getLevels();
var hasAlpha = ktx2File.getHasAlpha();
var dfdTransferFn = ktx2File.getDFDTransferFunc();
var dfdFlags = ktx2File.getDFDFlags();
var _getTranscoderFormat = getTranscoderFormat(basisFormat, width, height, hasAlpha),
transcoderFormat = _getTranscoderFormat.transcoderFormat,
engineFormat = _getTranscoderFormat.engineFormat;
if (!width || !height || !levels) {
cleanup();
throw new Error('THREE.KTX2Loader: Invalid texture');
}
if (!ktx2File.startTranscoding()) {
cleanup();
throw new Error('THREE.KTX2Loader: .startTranscoding failed');
}
var mipmaps = [];
for (var mip = 0; mip < levels; mip++) {
var layerMips = [];
var mipWidth = void 0,
mipHeight = void 0;
for (var layer = 0; layer < layers; layer++) {
var levelInfo = ktx2File.getImageLevelInfo(mip, layer, 0);
mipWidth = levelInfo.origWidth < 4 ? levelInfo.origWidth : levelInfo.width;
mipHeight = levelInfo.origHeight < 4 ? levelInfo.origHeight : levelInfo.height;
var dst = new Uint8Array(ktx2File.getImageTranscodedSizeInBytes(mip, layer, 0, transcoderFormat));
var status = ktx2File.transcodeImage(dst, mip, layer, 0, transcoderFormat, 0, -1, -1);
if (!status) {
cleanup();
throw new Error('THREE.KTX2Loader: .transcodeImage failed.');
}
layerMips.push(dst);
}
mipmaps.push({
data: concat(layerMips),
width: mipWidth,
height: mipHeight
});
}
cleanup();
return {
width: width,
height: height,
hasAlpha: hasAlpha,
mipmaps: mipmaps,
format: engineFormat,
dfdTransferFn: dfdTransferFn,
dfdFlags: dfdFlags
};
}
//
// Optimal choice of a transcoder target format depends on the Basis format (ETC1S or UASTC),
// device capabilities, and texture dimensions. The list below ranks the formats separately
// for ETC1S and UASTC.
//
// In some cases, transcoding UASTC to RGBA32 might be preferred for higher quality (at
// significant memory cost) compared to ETC1/2, BC1/3, and PVRTC. The transcoder currently
// chooses RGBA32 only as a last resort and does not expose that option to the caller.
var FORMAT_OPTIONS = [{
if: 'astcSupported',
basisFormat: [BasisFormat.UASTC_4x4],
transcoderFormat: [TranscoderFormat.ASTC_4x4, TranscoderFormat.ASTC_4x4],
engineFormat: [EngineFormat.RGBA_ASTC_4x4_Format, EngineFormat.RGBA_ASTC_4x4_Format],
priorityETC1S: Infinity,
priorityUASTC: 1,
needsPowerOfTwo: false
}, {
if: 'bptcSupported',
basisFormat: [BasisFormat.ETC1S, BasisFormat.UASTC_4x4],
transcoderFormat: [TranscoderFormat.BC7_M5, TranscoderFormat.BC7_M5],
engineFormat: [EngineFormat.RGBA_BPTC_Format, EngineFormat.RGBA_BPTC_Format],
priorityETC1S: 3,
priorityUASTC: 2,
needsPowerOfTwo: false
}, {
if: 'dxtSupported',
basisFormat: [BasisFormat.ETC1S, BasisFormat.UASTC_4x4],
transcoderFormat: [TranscoderFormat.BC1, TranscoderFormat.BC3],
engineFormat: [EngineFormat.RGB_S3TC_DXT1_Format, EngineFormat.RGBA_S3TC_DXT5_Format],
priorityETC1S: 4,
priorityUASTC: 5,
needsPowerOfTwo: false
}, {
if: 'etc2Supported',
basisFormat: [BasisFormat.ETC1S, BasisFormat.UASTC_4x4],
transcoderFormat: [TranscoderFormat.ETC1, TranscoderFormat.ETC2],
engineFormat: [EngineFormat.RGB_ETC2_Format, EngineFormat.RGBA_ETC2_EAC_Format],
priorityETC1S: 1,
priorityUASTC: 3,
needsPowerOfTwo: false
}, {
if: 'etc1Supported',
basisFormat: [BasisFormat.ETC1S, BasisFormat.UASTC_4x4],
transcoderFormat: [TranscoderFormat.ETC1],
engineFormat: [EngineFormat.RGB_ETC1_Format],
priorityETC1S: 2,
priorityUASTC: 4,
needsPowerOfTwo: false
}, {
if: 'pvrtcSupported',
basisFormat: [BasisFormat.ETC1S, BasisFormat.UASTC_4x4],
transcoderFormat: [TranscoderFormat.PVRTC1_4_RGB, TranscoderFormat.PVRTC1_4_RGBA],
engineFormat: [EngineFormat.RGB_PVRTC_4BPPV1_Format, EngineFormat.RGBA_PVRTC_4BPPV1_Format],
priorityETC1S: 5,
priorityUASTC: 6,
needsPowerOfTwo: true
}];
var ETC1S_OPTIONS = FORMAT_OPTIONS.sort(function (a, b) {
return a.priorityETC1S - b.priorityETC1S;
});
var UASTC_OPTIONS = FORMAT_OPTIONS.sort(function (a, b) {
return a.priorityUASTC - b.priorityUASTC;
});
function getTranscoderFormat(basisFormat, width, height, hasAlpha) {
var transcoderFormat;
var engineFormat;
var options = basisFormat === BasisFormat.ETC1S ? ETC1S_OPTIONS : UASTC_OPTIONS;
for (var i = 0; i < options.length; i++) {
var opt = options[i];
if (!config[opt.if]) continue;
if (!opt.basisFormat.includes(basisFormat)) continue;
if (hasAlpha && opt.transcoderFormat.length < 2) continue;
if (opt.needsPowerOfTwo && !(isPowerOfTwo(width) && isPowerOfTwo(height))) continue;
transcoderFormat = opt.transcoderFormat[hasAlpha ? 1 : 0];
engineFormat = opt.engineFormat[hasAlpha ? 1 : 0];
return {
transcoderFormat: transcoderFormat,
engineFormat: engineFormat
};
}
console.warn('THREE.KTX2Loader: No suitable compressed texture format found. Decoding to RGBA32.');
transcoderFormat = TranscoderFormat.RGBA32;
engineFormat = EngineFormat.RGBAFormat;
return {
transcoderFormat: transcoderFormat,
engineFormat: engineFormat
};
}
function isPowerOfTwo(value) {
if (value <= 2) return true;
return (value & value - 1) === 0 && value !== 0;
}
/** Concatenates N byte arrays. */
function concat(arrays) {
var totalByteLength = 0;
for (var i = 0; i < arrays.length; i++) {
totalByteLength += arrays[i].byteLength;
}
var result = new Uint8Array(totalByteLength);
var byteOffset = 0;
for (var _i = 0; _i < arrays.length; _i++) {
result.set(arrays[_i], byteOffset);
byteOffset += arrays[_i].byteLength;
}
return result;
}
};
//
// DataTexture and Data3DTexture parsing.
var FORMAT_MAP = (_FORMAT_MAP = {}, _defineProperty(_FORMAT_MAP, VK_FORMAT_R32G32B32A32_SFLOAT, RGBAFormat), _defineProperty(_FORMAT_MAP, VK_FORMAT_R16G16B16A16_SFLOAT, RGBAFormat), _defineProperty(_FORMAT_MAP, VK_FORMAT_R8G8B8A8_UNORM, RGBAFormat), _defineProperty(_FORMAT_MAP, VK_FORMAT_R8G8B8A8_SRGB, RGBAFormat), _defineProperty(_FORMAT_MAP, VK_FORMAT_R32G32_SFLOAT, RGFormat), _defineProperty(_FORMAT_MAP, VK_FORMAT_R16G16_SFLOAT, RGFormat), _defineProperty(_FORMAT_MAP, VK_FORMAT_R8G8_UNORM, RGFormat), _defineProperty(_FORMAT_MAP, VK_FORMAT_R8G8_SRGB, RGFormat), _defineProperty(_FORMAT_MAP, VK_FORMAT_R32_SFLOAT, RedFormat), _defineProperty(_FORMAT_MAP, VK_FORMAT_R16_SFLOAT, RedFormat), _defineProperty(_FORMAT_MAP, VK_FORMAT_R8_SRGB, RedFormat), _defineProperty(_FORMAT_MAP, VK_FORMAT_R8_UNORM, RedFormat), _FORMAT_MAP);
var TYPE_MAP = (_TYPE_MAP = {}, _defineProperty(_TYPE_MAP, VK_FORMAT_R32G32B32A32_SFLOAT, FloatType), _defineProperty(_TYPE_MAP, VK_FORMAT_R16G16B16A16_SFLOAT, HalfFloatType), _defineProperty(_TYPE_MAP, VK_FORMAT_R8G8B8A8_UNORM, UnsignedByteType), _defineProperty(_TYPE_MAP, VK_FORMAT_R8G8B8A8_SRGB, UnsignedByteType), _defineProperty(_TYPE_MAP, VK_FORMAT_R32G32_SFLOAT, FloatType), _defineProperty(_TYPE_MAP, VK_FORMAT_R16G16_SFLOAT, HalfFloatType), _defineProperty(_TYPE_MAP, VK_FORMAT_R8G8_UNORM, UnsignedByteType), _defineProperty(_TYPE_MAP, VK_FORMAT_R8G8_SRGB, UnsignedByteType), _defineProperty(_TYPE_MAP, VK_FORMAT_R32_SFLOAT, FloatType), _defineProperty(_TYPE_MAP, VK_FORMAT_R16_SFLOAT, HalfFloatType), _defineProperty(_TYPE_MAP, VK_FORMAT_R8_SRGB, UnsignedByteType), _defineProperty(_TYPE_MAP, VK_FORMAT_R8_UNORM, UnsignedByteType), _TYPE_MAP);
var COLOR_SPACE_MAP = (_COLOR_SPACE_MAP = {}, _defineProperty(_COLOR_SPACE_MAP, VK_FORMAT_R8G8B8A8_SRGB, THREE.SRGBColorSpace), _defineProperty(_COLOR_SPACE_MAP, VK_FORMAT_R8G8_SRGB, THREE.SRGBColorSpace), _defineProperty(_COLOR_SPACE_MAP, VK_FORMAT_R8_SRGB, THREE.SRGBColorSpace), _COLOR_SPACE_MAP);
function createDataTexture(_x2) {
return _createDataTexture.apply(this, arguments);
}
function _createDataTexture() {
_createDataTexture = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime.mark(function _callee3(container) {
var vkFormat, pixelWidth, pixelHeight, pixelDepth, level, levelData, view, texture;
return _regeneratorRuntime.wrap(function _callee3$(_context3) {
while (1) switch (_context3.prev = _context3.next) {
case 0:
vkFormat = container.vkFormat, pixelWidth = container.pixelWidth, pixelHeight = container.pixelHeight, pixelDepth = container.pixelDepth;
if (!(FORMAT_MAP[vkFormat] === undefined)) {
_context3.next = 3;
break;
}
throw new Error('THREE.KTX2Loader: Unsupported vkFormat.');
case 3:
level = container.levels[0];
if (!(container.supercompressionScheme === KHR_SUPERCOMPRESSION_NONE)) {
_context3.next = 8;
break;
}
levelData = level.levelData;
_context3.next = 16;
break;
case 8:
if (!(container.supercompressionScheme === KHR_SUPERCOMPRESSION_ZSTD)) {
_context3.next = 15;
break;
}
if (!_zstd) {
_zstd = new Promise( /*#__PURE__*/function () {
var _ref3 = _asyncToGenerator( /*#__PURE__*/_regeneratorRuntime.mark(function _callee2(resolve) {
var zstd;
return _regeneratorRuntime.wrap(function _callee2$(_context2) {
while (1) switch (_context2.prev = _context2.next) {
case 0:
zstd = new ZSTDDecoder();
_context2.next = 3;
return zstd.init();
case 3:
resolve(zstd);
case 4:
case "end":
return _context2.stop();
}
}, _callee2);
}));
return function (_x3) {
return _ref3.apply(this, arguments);
};
}());
}
_context3.next = 12;
return _zstd;
case 12:
levelData = _context3.sent.decode(level.levelData, level.uncompressedByteLength);
_context3.next = 16;
break;
case 15:
throw new Error('THREE.KTX2Loader: Unsupported supercompressionScheme.');
case 16:
if (TYPE_MAP[vkFormat] === FloatType) {
view = new Float32Array(levelData.buffer, levelData.byteOffset, levelData.byteLength / Float32Array.BYTES_PER_ELEMENT);
} else if (TYPE_MAP[vkFormat] === HalfFloatType) {
view = new Uint16Array(levelData.buffer, levelData.byteOffset, levelData.byteLength / Uint16Array.BYTES_PER_ELEMENT);
} else {
view = levelData;
}
//
texture = pixelDepth === 0 ? new DataTexture(view, pixelWidth, pixelHeight) : new Data3DTexture(view, pixelWidth, pixelHeight, pixelDepth);
texture.type = TYPE_MAP[vkFormat];
texture.format = FORMAT_MAP[vkFormat];
texture.colorSpace = COLOR_SPACE_MAP[vkFormat] || NoColorSpace;
texture.needsUpdate = true;
//
return _context3.abrupt("return", Promise.resolve(texture));
case 23:
case "end":
return _context3.stop();
}
}, _callee3);
}));
return _createDataTexture.apply(this, arguments);
}
export { KTX2Loader };