sceFontGetFontMetrics fills the 64-byte metrics block through a new
driver slot at SysDriver+0x98, as libSceFont and libSceFontFt do in
firmware 13.60. Form 1 reads hhea, 2 the OS/2 typographic values, 3 the
OS/2 Windows values and 4 the vertical values from vhea or OS/2; 2 and 3
fall back to hhea when OS/2 is missing or gives an empty range. The
bounding box, em size, raw weight deltas and slant follow. A failed call
clears the block and sets both weights to 1.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
