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Assert that the fontMatrix is always valid in compileGlyph

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While [bug 1893645](https://bugzilla.mozilla.org/show_bug.cgi?id=1893645) was fixed some time ago now, it still shouldn't hurt to also assert that the `fontMatrix` is always valid when invoking the `compileGlyph` method.
This commit is contained in:
Jonas Jenwald 2024-12-27 11:41:49 +01:00
parent 4547f230ba
commit 2ae5aa08cc
1 changed files with 3 additions and 0 deletions
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3
src/core/font_renderer.js
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@ -14,6 +14,7 @@
*/ */
import { import {
assert,
bytesToString, bytesToString,
FONT_IDENTITY_MATRIX, FONT_IDENTITY_MATRIX,
FormatError, FormatError,
@ -23,6 +24,7 @@ import {
} from "../shared/util.js"; } from "../shared/util.js";
import { CFFParser } from "./cff_parser.js"; import { CFFParser } from "./cff_parser.js";
import { getGlyphsUnicode } from "./glyphlist.js"; import { getGlyphsUnicode } from "./glyphlist.js";
import { isNumberArray } from "./core_utils.js";
import { StandardEncoding } from "./encodings.js"; import { StandardEncoding } from "./encodings.js";
import { Stream } from "./stream.js"; import { Stream } from "./stream.js";
@ -834,6 +836,7 @@ class CompiledFont {
warn("Invalid fd index for glyph index."); warn("Invalid fd index for glyph index.");
} }
} }
assert(isNumberArray(fontMatrix, 6), "Expected a valid fontMatrix.");
const cmds = new Commands(); const cmds = new Commands();
cmds.transform(fontMatrix.slice()); cmds.transform(fontMatrix.slice());