Gottfried/glitchy-engine-beef
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Preprocess and delete glyph shape

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This commit is contained in:
Simon Lübeß
2026-08-02 11:58:39 +02:00
parent 4e314d1de2
commit dec0a004a5
1 changed files with 12 additions and 28 deletions
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GlitchyEngine/src/Renderer/Text/Font.bf
+12 -28
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@@ -471,13 +471,11 @@ namespace GlitchyEngine.Renderer.Text
void DrawAtlas()
{
Debug.Profiler.ProfileResourceFunction!();
// Pixels per Em
double scale = 64.0;
// TODO: Default values from MSDF-Atlas-Gen
// TODO:
// Via tryPack argument:
double scale = 32.0;
// Via Atlas Packer constructor:
msdfgen.Range unitRange = .(0.0, 0.0);
msdfgen.Range pxRange = .(-1.0, 1.0);
Padding innerUnitPadding = .(0);
@@ -599,29 +597,15 @@ namespace GlitchyEngine.Renderer.Text
desc.Advance = (float)(advance * _geometryScale);
// No Skia, no ResolveShapeGeometry :/
//if (preprocessGeometry)
//{
// Debug.Profiler.ProfileResourceScope!("msdfgen.ResolveShapeGeometry");
// msdfgen.ResolveShapeGeometry(shape);
//}
Shape.Normalize(desc.Shape);
var bounds = Shape.GetBounds(desc.Shape);
// TODO: Save shapes and bounds in desc?
//if (!preprocessGeometry)
{
// TODO!
// Determine if shape is winded incorrectly and reverse it in that case
//double2 outerPoint = .(bounds.Left - (bounds.Right - bounds.Left) - 1.0, bounds.Bottom - (bounds.Top - bounds.Bottom) - 1.0);
//if (msdfgen::SimpleTrueShapeDistanceFinder::oneShotDistance(shape, outerPoint) > 0) {
// for (msdfgen::Contour &contour : shape.contours)
// contour.reverse();
//}
}
// msdfgen's geometry preprocessing needs Skia, which this build doesn't have, so we do what msdf-atlas-gen
// does in that case: determine if the shape is winded incorrectly and reverse it in that case.
// Reversing the contours doesn't change the bounding box, so bounds stays valid.
Shape.ReverseIfNeeded(desc.Shape, bounds);
// TODO: Ohne korrekten _geometryScaler läuft hier garnüscht.
double scale = glyphAttributes.Scale * _geometryScale;
@@ -992,14 +976,11 @@ namespace GlitchyEngine.Renderer.Text
{
Debug.Profiler.ProfileResourceFunction!();
msdfgen.ResolveShapeGeometry(desc.Shape);
Shape.Normalize(desc.Shape);
// The shape is already normalized and preprocessed by CalculateGlyphBox and isn't touched inbetween,
// so all that's left to do here is coloring the edges.
msdfgen.EdgeColoringSimple(desc.Shape, 3.0);
// prepare projection
//SDFTransformation t = SDFTransformation(Projection(32.0, 32.0, 0.125, 0.125), DistanceMapping(msdfgen.Range(0.125)));
SDFTransformation t = SDFTransformation(Projection(desc.boxScale, desc.boxScale, desc.boxTranslate.X, desc.boxTranslate.Y), DistanceMapping(desc.boxRange));
int bufferX = desc.Width;
@@ -1095,6 +1076,9 @@ namespace GlitchyEngine.Renderer.Text
_atlas.SetData<Color>((Color*)pixels.Ptr, (.)desc.MapCoord.X, (.)desc.MapCoord.Y,
(.)desc.Width, (.)desc.Height, (.)desc.MapCoord.Z);
}
// The shape is no longer needed
msdfgen.DestroyShape(desc.Shape);
desc.Shape = null;
}
}
}