Load Windows 3.x .FON (NE resource containers) and raw .FNT font files
for use with ExtTextOut. Multiple fonts can be active simultaneously.
All available .FON files contain v2 fonts but VBESVGA.DRV requires v3
in 386 protected mode, so the loader converts on load.
- Add NE resource table structures (NeResourceTypeT, NeResourceEntryT)
- Add WdrvFontT opaque type with load/unload API
- Implement buildFontFromFnt() v2→v3 converter
- Implement wdrvLoadFontFon() NE resource parser
- Move font from per-driver to global singleton (wdrvLoadFontBuiltin)
- Add WdrvFontT parameter to wdrvExtTextOut (NULL = built-in)
- Add Demo 6: Courier, Sans Serif, System fonts side by side
- Copy fon/*.FON to bin/ during build
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add text rendering support via the Windows 3.x ExtTextOut DDI function.
Builds a .FNT v3 font structure from the VGA BIOS 8x16 ROM font
(INT 10h AH=11h), with v3 char table (6-byte entries, absolute offsets)
required by VBESVGA.DRV's BigFontFlags in protected mode. Provides a
full-screen clip rect since STRBLT.ASM unconditionally dereferences
lpClipRect. Tested with both VBESVGA.DRV and S3TRIO.DRV.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
