Marmelator/pdf.js.mirror
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2026-06-22 16:05:56 +02:00
Code Issues Packages Projects Releases Wiki Activity

Remove the int32 helper, and replace it with DataView usage, in src/core/fonts.js

Browse Source 
This helper function only had a single call-site, and it's easily replaced with a `DataView` method.
Additionally, to hopefully make future re-factoring easier, create a `DataView` for each TrueType table.
This commit is contained in:
Jonas Jenwald 2026-04-12 10:01:14 +02:00
parent 5089cceec7
commit f924526f1a
1 changed files with 4 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/core/fonts.js
View File

@ -302,10 +302,6 @@ function writeUint32(bytes, index, value) {
bytes[index] = value >>> 24; bytes[index] = value >>> 24;
} }
function int32(b0, b1, b2, b3) {
return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3;
}
function string16(value) { function string16(value) {
if (typeof PDFJSDev === "undefined" || PDFJSDev.test("TESTING")) { if (typeof PDFJSDev === "undefined" || PDFJSDev.test("TESTING")) {
assert( assert(
@ -1400,6 +1396,7 @@ class Font {
length, length,
offset, offset,
data, data,
view: new DataView(data.buffer, data.byteOffset, data.byteLength),
}; };
} }
@ -2025,17 +2022,14 @@ class Font {
} }
function sanitizeHead(head, numGlyphs, locaLength) { function sanitizeHead(head, numGlyphs, locaLength) {
const data = head.data; const { data, view } = head;
// Validate version: // Validate version:
// Should always be 0x00010000 // Should always be 0x00010000
const version = int32(data[0], data[1], data[2], data[3]); const version = view.getInt32(0);
if (version >> 16 !== 1) { if (version >> 16 !== 1) {
info("Attempting to fix invalid version in head table: " + version); info("Attempting to fix invalid version in head table: " + version);
data[0] = 0; view.setInt32(0, 0x00010000);
data[1] = 1;
data[2] = 0;
data[3] = 0;
} }
const indexToLocFormat = signedInt16(data[50], data[51]); const indexToLocFormat = signedInt16(data[50], data[51]);