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[base] Reintroduce overall rendering limits.

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* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Limit absolute
outline coordinnates to prevent integer issues downstream.
This commit is contained in:
Alexei Podtelezhnikov 2026-03-09 22:53:06 -04:00
parent e7d2cc6466
commit dc17b79e1a
1 changed files with 6 additions and 4 deletions
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10
src/base/ftobjs.c
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@ -499,10 +499,12 @@
/* Flag the width or height unsuitable for rendering. */
/* The limit is based on the ppem value when available. */
/* FT_Renderer modules should check the return value. */
ret = FT_BOOL( width >= 0x10000 || height >= 0x10000 ||
( slot->face &&
( width > 10 * slot->face->size->metrics.x_ppem ||
height > 10 * slot->face->size->metrics.y_ppem ) ) );
ret = FT_BOOL( width >= 0x10000 || height >= 0x10000 ||
pbox.xMin < -0x1000000 || pbox.xMax >= 0x1000000 ||
pbox.yMin < -0x1000000 || pbox.yMax >= 0x1000000 ||
( slot->face &&
( width > 10 * slot->face->size->metrics.x_ppem ||
height > 10 * slot->face->size->metrics.y_ppem ) ) );
if ( ret )
FT_TRACE3(( "ft_glyphslot_preset_bitmap: [%ld %ld %ld %ld]\n",