DrawStringDat placed each glyph quad at the raw (often fractional) pen/origin.
When a bar resizes to a fractional width, the centered cur/max number lands on a
sub-pixel x and the glyph atlas (linear-filtered) smears — the 'unsharp at certain
sizes' artifact. Round each glyph's destination to whole pixels (the pen keeps its
true fractional advance, so spacing is unaffected) — matches retail blitting glyphs
to integer dest. User-confirmed sharp across resize widths.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The vitals cur/max overlay rendered with the consola TTF debug font,
which is wrong for the retail look. Port the retail dat-font render
path so the numbers use Font 0x40000000 (Latin-1, 16px, with outline
atlas) — the same font retail draws on the vitals window.
UiDatFont (new): loads the Font DBObj from the DatCollection and
uploads its two RenderSurface atlases (foreground glyph pixels
0x06005EE5 + background outline 0x06005EE6) through
TextureCache.GetOrUploadRenderSurface — the same direct-RenderSurface
path the D.2b chrome sprites use. Builds a char->FontCharDesc lookup
and exposes MeasureWidth + LineHeight. The per-glyph advance
(HorizontalOffsetBefore + Width + HorizontalOffsetAfter) is a pure
static so the pen math is unit-testable without GL or the dat.
UiRenderContext.DrawStringDat (new): two-pass per-glyph blit mirroring
SurfaceWindow::DrawCharacter (acclient 0x00442bd0) — the BACKGROUND
atlas sub-rect tinted black (outline) first, then the FOREGROUND
sub-rect tinted the text color (fill), with the pen accumulating the
retail advance the way the string loop does at 0x00467ed4. Respects
the UI transform stack. Skips the outline pass for fonts with no
background atlas.
No shader change was needed: the foreground atlas decodes A8 ->
(255,255,255,a), and ui_text.frag's RGBA-sprite path already
MULTIPLIES the texel by the per-vertex tint (texture(uTex,vUv)*vColor),
so tinting white+alpha by a color gives color+alpha (black outline,
text-color fill).
UiMeter: new DatFont property; the label renders via DrawStringDat
(centered with DatFont.MeasureWidth) when set, falling back to the
debug BitmapFont when null.
GameWindow: loads one UiDatFont for the vitals panel (under _datLock)
and assigns it to each UiMeter child; logs + falls back to the debug
font if the Font fails to load (never crashes).
Tests: 6 pure-logic UiDatFontTests for GlyphAdvance + MeasureWidth
(synthetic glyphs, negative bearings, missing chars, empty/null). Full
App UI suite green (84 passed).
DatReaderWriter member names verified via reflection on the 2.1.7
package: Font.{MaxCharHeight,BaselineOffset,ForegroundSurfaceDataId,
BackgroundSurfaceDataId,CharDescs} and FontCharDesc.{Unicode,OffsetX,
OffsetY,Width,Height,HorizontalOffsetBefore,HorizontalOffsetAfter,
VerticalOffsetBefore}.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Add uUseTexture==2 (RGBA modulate) branch to ui_text.frag so dat sprites
can be drawn through the existing 2D batcher without touching the font path.
TextRenderer gains _spriteBufs (per-GL-handle List<float>), DrawSprite(), and
a Flush block that issues one draw call per distinct texture with uUseTexture=2.
Also adds DepthMask(false) in the state-save block (restored to true after) to
prevent the transparent-quad pass from writing depth and corrupting the 3D scene
if the UI is flushed mid-frame.
TextureCache gains GetOrUpload(surfaceId, out width, out height) — caches pixel
dimensions alongside the GL handle so UI 9-slice geometry can compute slice UVs
from the source image size without a second decode.
UiRenderContext gains a DrawSprite forwarder that applies the current 2D
translate stack, matching the DrawRect / DrawRectOutline pattern.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
