Marmelator/pdf.js.mirror
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2026-06-26 18:15:48 +02:00
Code Issues Packages Projects Releases Wiki Activity

Replace a couple of loops with TypedArray.prototype.fill() in the src/core/ascii_85_stream.js file

Browse Source
This commit is contained in:
Jonas Jenwald 2026-04-06 11:44:43 +02:00
parent dd8f0a327f
commit dc448b3ceb
1 changed files with 5 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/core/ascii_85_stream.js
View File

@ -17,6 +17,8 @@ import { DecodeStream } from "./decode_stream.js";
import { isWhiteSpace } from "./core_utils.js"; import { isWhiteSpace } from "./core_utils.js";
class Ascii85Stream extends DecodeStream { class Ascii85Stream extends DecodeStream {
#input = new Uint8Array(5);
constructor(str, maybeLength) { constructor(str, maybeLength) {
// Most streams increase in size when decoded, but Ascii85 streams // Most streams increase in size when decoded, but Ascii85 streams
// typically shrink by ~20%. // typically shrink by ~20%.
@ -27,7 +29,6 @@ class Ascii85Stream extends DecodeStream {
this.stream = str; this.stream = str;
this.dict = str.dict; this.dict = str.dict;
this.input = new Uint8Array(5);
} }
readBlock() { readBlock() {
@ -53,12 +54,10 @@ class Ascii85Stream extends DecodeStream {
// special code for z // special code for z
if (c === Z_LOWER_CHAR) { if (c === Z_LOWER_CHAR) {
buffer = this.ensureBuffer(bufferLength + 4); buffer = this.ensureBuffer(bufferLength + 4);
for (i = 0; i < 4; ++i) { buffer.fill(0, bufferLength, bufferLength + 4);
buffer[bufferLength + i] = 0;
}
this.bufferLength += 4; this.bufferLength += 4;
} else { } else {
const input = this.input; const input = this.#input;
input[0] = c; input[0] = c;
for (i = 1; i < 5; ++i) { for (i = 1; i < 5; ++i) {
c = str.getByte(); c = str.getByte();
@ -77,9 +76,7 @@ class Ascii85Stream extends DecodeStream {
// partial ending; // partial ending;
if (i < 5) { if (i < 5) {
for (; i < 5; ++i) { input.fill(0x21 + 84, i, 5);
input[i] = 0x21 + 84;
}
this.eof = true; this.eof = true;
} }
let t = 0; let t = 0;