Updated png and bmp related-libs, Updated home page and sidebar

Update sidebar.yml, home.yml, and 7 more files...

static/resources/NibblePoker/libs/bmp-utils.mjs

@@ -0,0 +1,57 @@
+import {loadFileAsUint8Array} from "./file-utils.mjs";
+import {peekUInt32BE, peekUInt16BE} from "./data-utils.mjs";
+
+/*export const test = {
+    WINDOWS: "BM",
+    OS2_STRUCT_BITMAP_ARRAY: "BA",
+    OS2_STRUCT_COLOR_ICON: "CI",
+    OS2_CONST_COLOR_POINTER: "CP",
+    OS2_STRUCT_ICON: "IC",
+    OS2_POINTER: "PT",
+}*/
+
+export class BmpHeader {
+    /** @type {Uint8Array} */
+    data;
+
+    /**
+     * @param byteArray {Uint8Array|null}
+     */
+    constructor(byteArray) {
+        if(byteArray === null || byteArray === undefined) {
+            this.data = new Uint8Array(14);
+        } else {
+            this.data = byteArray;
+        }
+    }
+
+    getSignature() {
+        return peekUInt16BE(this.data, 0);
+    }
+
+    getFileSize() {
+        return peekUInt32BE(this.data, 2);
+    }
+
+    getReserved() {
+        return peekUInt32BE(this.data, 6);
+    }
+
+    getDataOffset() {
+        return peekUInt32BE(this.data, 10);
+    }
+}
+
+export class CrudeBmpFile {
+
+    constructor(file = null, fileData = null) {
+        this.originalFile = file;
+    }
+
+}
+
+export function parseBmpFile(file) {
+    return loadFileAsUint8Array(file).then(byteBuffer => {
+        return new CrudeBmpFile(file, byteBuffer);
+    });
+}

static/resources/NibblePoker/libs/data-utils.mjs

@@ -23,6 +23,34 @@ export function areUintArraysEqual(array1, array2) {
     return true;
 }
 
+/**
+ * Peeks a UInt16 from the given data at the given offset in Big-Endian.
+ * @param data {Uint8Array} - Data to read from.
+ * @param offset {number} - Offset to read from in the given `data`.
+ * @return {number} The peeked number.
+ * @throws RangeError If the given offset is too close or over the end of the data.
+ */
+export function peekUInt16BE(data, offset = 0) {
+    if(offset + 2 > data.length) {
+        throw new RangeError(`Offset is too far into the given data ! (${offset} & ${data.length})`);
+    }
+    return new DataView(data.buffer, offset, 2).getUint16(0, false);
+}
+
+/**
+ * Peeks a UInt16 from the given data at the given offset in Little-Endian.
+ * @param data {Uint8Array} - Data to read from.
+ * @param offset {number} - Offset to read from in the given `data`.
+ * @return {number} The peeked number.
+ * @throws RangeError If the given offset is too close or over the end of the data.
+ */
+export function peekUInt16LE(data, offset = 0) {
+    if(offset + 2 > data.length) {
+        throw new RangeError(`Offset is too far into the given data ! (${offset} & ${data.length})`);
+    }
+    return new DataView(data.buffer, offset, 2).getUint16(0, true);
+}
+
 /**
  * Peeks a UInt32 from the given data at the given offset in Big-Endian.
  * @param data {Uint8Array} - Data to read from.