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perf(runtime): remove measured steady allocations

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Eliminate boxed production surface-override enumeration, retain vital modifier projections until the enchantment registry mutates, and measure DAT font widths without allocating a captured delegate. Preserve exact hashes, spell stacking, and glyph advances with warmed zero-allocation tests.

Validated by the focused rendering, UI, and spell suites, a zero-error Release build, and 8,409 passing Release tests with five pre-existing skips.

Co-authored-by: Codex <codex@openai.com>
This commit is contained in:
Erik 2026-07-25 17:50:30 +02:00
parent 574a6c454f
commit feb80a67d9
6 changed files with 188 additions and 14 deletions
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31
tests/AcDream.App.Tests/UI/UiDatFontTests.cs
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@ -81,4 +81,35 @@ public class UiDatFontTests
Assert.Equal(0f, UiDatFont.MeasureWidth("", Lookup));
Assert.Equal(0f, UiDatFont.MeasureWidth(null, Lookup));
}
[Fact]
public void InstanceMeasureWidth_ReusesGlyphTableWithoutAllocating()
{
var glyphs = new Dictionary<char, FontCharDesc>
{
['A'] = Glyph('A', width: 8, before: 1, after: 2),
['B'] = Glyph('B', width: 7, before: 1, after: 1),
};
var font = new UiDatFont(
fgTex: 0,
fgW: 0,
fgH: 0,
bgTex: 0,
bgW: 0,
bgH: 0,
lineHeight: 16f,
baselineOffset: 12f,
glyphs);
const string Text = "ABBA";
float expected = font.MeasureWidth(Text);
float actual = 0f;
long before = GC.GetAllocatedBytesForCurrentThread();
for (int iteration = 0; iteration < 10_000; iteration++)
actual = font.MeasureWidth(Text);
long allocated = GC.GetAllocatedBytesForCurrentThread() - before;
Assert.Equal(expected, actual);
Assert.Equal(0, allocated);
}
}