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fix tests for spec magic number/compression changes

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This commit is contained in:
Brandon Liu
2022-10-05 10:46:05 +08:00
parent 41b53c2c12
commit 7526a4b8b6
4 changed files with 36 additions and 34 deletions
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58
js/index.ts
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@@ -1,5 +1,6 @@
import { decompressSync } from "fflate";
import v2 from "./v2";
export * from './adapters';
export interface BufferPosition {
buf: Uint8Array;
@@ -134,9 +135,10 @@ const ENTRY_SIZE_BYTES = 32;
export enum Compression {
Unknown = 0,
Gzip = 1,
Brotli = 2,
Zstd = 3,
None = 1,
Gzip = 2,
Brotli = 3,
Zstd = 4,
}
function tryDecompress(buf: ArrayBuffer, compression: Compression) {
@@ -157,7 +159,7 @@ export enum TileType {
Webp = 4,
}
const HEADER_SIZE_BYTES = 122;
const HEADER_SIZE_BYTES = 127;
export interface Header {
specVersion: number;
@@ -301,30 +303,30 @@ export function bytesToHeader(bytes: ArrayBuffer, etag?: string): Header {
const v = new DataView(bytes);
return {
specVersion: 3,
rootDirectoryOffset: Number(v.getBigUint64(3, true)),
rootDirectoryLength: Number(v.getBigUint64(11, true)),
jsonMetadataOffset: Number(v.getBigUint64(19, true)),
jsonMetadataLength: Number(v.getBigUint64(27, true)),
leafDirectoryOffset: Number(v.getBigUint64(35, true)),
leafDirectoryLength: Number(v.getBigUint64(43, true)),
tileDataOffset: Number(v.getBigUint64(51, true)),
tileDataLength: Number(v.getBigUint64(59, true)),
numAddressedTiles: Number(v.getBigUint64(67, true)),
numTileEntries: Number(v.getBigUint64(75, true)),
numTileContents: Number(v.getBigUint64(83, true)),
clustered: v.getUint8(91) === 1,
internalCompression: v.getUint8(92),
tileCompression: v.getUint8(93),
tileType: v.getUint8(94),
minZoom: v.getUint8(95),
maxZoom: v.getUint8(96),
minLon: v.getInt32(97, true) / 10000000,
minLat: v.getInt32(101, true) / 10000000,
maxLon: v.getInt32(105, true) / 10000000,
maxLat: v.getInt32(109, true) / 10000000,
centerZoom: v.getUint8(113),
centerLon: v.getInt32(114, true) / 10000000,
centerLat: v.getInt32(118, true) / 10000000,
rootDirectoryOffset: Number(v.getBigUint64(8, true)),
rootDirectoryLength: Number(v.getBigUint64(16, true)),
jsonMetadataOffset: Number(v.getBigUint64(24, true)),
jsonMetadataLength: Number(v.getBigUint64(32, true)),
leafDirectoryOffset: Number(v.getBigUint64(40, true)),
leafDirectoryLength: Number(v.getBigUint64(48, true)),
tileDataOffset: Number(v.getBigUint64(56, true)),
tileDataLength: Number(v.getBigUint64(64, true)),
numAddressedTiles: Number(v.getBigUint64(72, true)),
numTileEntries: Number(v.getBigUint64(80, true)),
numTileContents: Number(v.getBigUint64(88, true)),
clustered: v.getUint8(96) === 1,
internalCompression: v.getUint8(97),
tileCompression: v.getUint8(98),
tileType: v.getUint8(99),
minZoom: v.getUint8(100),
maxZoom: v.getUint8(101),
minLon: v.getInt32(102, true) / 10000000,
minLat: v.getInt32(106, true) / 10000000,
maxLon: v.getInt32(110, true) / 10000000,
maxLat: v.getInt32(114, true) / 10000000,
centerZoom: v.getUint8(118),
centerLon: v.getInt32(119, true) / 10000000,
centerLat: v.getInt32(123, true) / 10000000,
etag: etag,
};
}