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Use a TypedArray when building the "maxp" TrueType table

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This commit is contained in:
Jonas Jenwald 2026-04-13 11:52:43 +02:00
parent aaaf143156
commit 0c789ecc97
1 changed files with 14 additions and 2 deletions
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16
src/core/fonts.js
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@ -327,6 +327,11 @@ function safeString16(value) {
return String.fromCharCode((value >> 8) & 0xff, value & 0xff); return String.fromCharCode((value >> 8) & 0xff, value & 0xff);
} }
function setArray(data, pos, arr) {
data.set(arr, pos);
return pos + arr.length;
}
function setInt16(view, pos, val) { function setInt16(view, pos, val) {
if (typeof PDFJSDev === "undefined" || PDFJSDev.test("TESTING")) { if (typeof PDFJSDev === "undefined" || PDFJSDev.test("TESTING")) {
assert( assert(
@ -3338,8 +3343,15 @@ class Font {
// Maximum profile // Maximum profile
builder.addTable( builder.addTable(
"maxp", "maxp",
"\x00\x00\x50\x00" + // Version number (function fontTableMaxp() {
string16(numGlyphs) // Num of glyphs const data = new Uint8Array(6),
view = new DataView(data.buffer);
setArray(data, 0, [0x00, 0x00, 0x50, 0x00]); // Version number
setInt16(view, 4, numGlyphs); // Num of glyphs
return data;
})()
); );
// Naming tables // Naming tables