Marmelator/pdf.js.mirror
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2026-06-25 01:25:51 +02:00
Code Issues Packages Projects Releases Wiki Activity

Use a TypedArray in the createPostTable function

Browse Source
This commit is contained in:
Jonas Jenwald 2026-04-13 15:12:38 +02:00
parent 419c2652c3
commit aa0bc24e95
1 changed files with 26 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
src/core/fonts.js
View File

@ -340,6 +340,17 @@ function setSafeInt16(view, pos, val) {
return pos + 2; return pos + 2;
} }
function setInt32(view, pos, val) {
if (typeof PDFJSDev === "undefined" || PDFJSDev.test("TESTING")) {
assert(
typeof val === "number" && Math.abs(val) < 2 ** 32,
`setInt32: Unexpected input "${val}".`
);
}
view.setInt32(pos, val);
return pos + 4;
}
function isTrueTypeFile(file) { function isTrueTypeFile(file) {
const header = file.peekBytes(4), const header = file.peekBytes(4),
str = bytesToString(header); str = bytesToString(header);
@ -888,18 +899,21 @@ function createOS2Table(properties, charstrings, override) {
} }
function createPostTable(properties) { function createPostTable(properties) {
const angle = Math.floor(properties.italicAngle * 2 ** 16); const data = new Uint8Array(32),
return ( view = new DataView(data.buffer);
"\x00\x03\x00\x00" + // Version number let pos = 0;
string32(angle) + // italicAngle
"\x00\x00" + // underlinePosition pos = setArray(data, pos, [0x00, 0x03, 0x00, 0x00]); // Version number
"\x00\x00" + // underlineThickness pos = setInt32(view, pos, Math.floor(properties.italicAngle * 2 ** 16)); // italicAngle
string32(properties.fixedPitch ? 1 : 0) + // isFixedPitch pos += 2; // underlinePosition, skip redundant "\x00\x00"
"\x00\x00\x00\x00" + // minMemType42 pos += 2; // underlineThickness, skip redundant "\x00\x00"
"\x00\x00\x00\x00" + // maxMemType42 setInt32(view, pos, properties.fixedPitch ? 1 : 0); // isFixedPitch
"\x00\x00\x00\x00" + // minMemType1 // minMemType42, skip redundant "\x00\x00\x00\x00"
"\x00\x00\x00\x00" // maxMemType1 // maxMemType42, skip redundant "\x00\x00\x00\x00"
); // minMemType1, skip redundant "\x00\x00\x00\x00"
// maxMemType1, skip redundant "\x00\x00\x00\x00"
return data;
} }
function createPostscriptName(name) { function createPostscriptName(name) {