mirrors/pdf.js
1
0
Fork 0
mirror of https://github.com/mozilla/pdf.js.git synced 2025-04-26 10:08:06 +02:00
Code Activity

Font renderer - get int8 instead of uint8 in composite glyphes (bug 1749563)

Browse source 
- it aims to fix https://bugzilla.mozilla.org/show_bug.cgi?id=1749563;
 - use some helper functions to get (u|i)int** values in buffer: it helps to have a clearer code;
 - in composite glyphes the translations values with a transformations are signed so consequently get some int8 instead of uint8;
 - add few TODOs.
This commit is contained in:
Calixte Denizet 2022-01-15 23:41:18 +01:00
parent da953f4b64
commit 74f25d2755
4 changed files with 96 additions and 65 deletions
Download patch file Download diff file Expand all files Collapse all files

12
src/core/glyf.js
View file

@ -550,14 +550,12 @@ class CompositeGlyph {
pos += 4;
flags ^= ARG_1_AND_2_ARE_WORDS;
} else {
argument1 = glyf.getUint8(pos);
argument2 = glyf.getUint8(pos + 1);
if (flags & ARGS_ARE_XY_VALUES) {
const abs1 = argument1 & 0x7f;
argument1 = argument1 & 0x80 ? -abs1 : abs1;
const abs2 = argument2 & 0x7f;
argument2 = argument2 & 0x80 ? -abs2 : abs2;
argument1 = glyf.getInt8(pos);
argument2 = glyf.getInt8(pos + 1);
} else {
argument1 = glyf.getUint8(pos);
argument2 = glyf.getUint8(pos + 1);
}
pos += 2;
}