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initial commit, 4.5 stable
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noahbackus
2025-09-16 20:46:46 -04:00
commit 9d30169a8d
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30
thirdparty/msdfgen/core/sdf-error-estimation.h vendored Normal file
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#pragma once
#include "Vector2.hpp"
#include "Shape.h"
#include "Projection.h"
#include "Scanline.h"
#include "BitmapRef.hpp"
namespace msdfgen {
/// Analytically constructs a scanline at y evaluating fill by linear interpolation of the SDF.
void scanlineSDF(Scanline &line, const BitmapConstRef<float, 1> &sdf, const Projection &projection, double y, bool inverseYAxis = false);
void scanlineSDF(Scanline &line, const BitmapConstRef<float, 3> &sdf, const Projection &projection, double y, bool inverseYAxis = false);
void scanlineSDF(Scanline &line, const BitmapConstRef<float, 4> &sdf, const Projection &projection, double y, bool inverseYAxis = false);
/// Estimates the portion of the area that will be filled incorrectly when rendering using the SDF.
double estimateSDFError(const BitmapConstRef<float, 1> &sdf, const Shape &shape, const Projection &projection, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
double estimateSDFError(const BitmapConstRef<float, 3> &sdf, const Shape &shape, const Projection &projection, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
double estimateSDFError(const BitmapConstRef<float, 4> &sdf, const Shape &shape, const Projection &projection, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
// Old version of the function API's kept for backwards compatibility
void scanlineSDF(Scanline &line, const BitmapConstRef<float, 1> &sdf, const Vector2 &scale, const Vector2 &translate, bool inverseYAxis, double y);
void scanlineSDF(Scanline &line, const BitmapConstRef<float, 3> &sdf, const Vector2 &scale, const Vector2 &translate, bool inverseYAxis, double y);
void scanlineSDF(Scanline &line, const BitmapConstRef<float, 4> &sdf, const Vector2 &scale, const Vector2 &translate, bool inverseYAxis, double y);
double estimateSDFError(const BitmapConstRef<float, 1> &sdf, const Shape &shape, const Vector2 &scale, const Vector2 &translate, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
double estimateSDFError(const BitmapConstRef<float, 3> &sdf, const Shape &shape, const Vector2 &scale, const Vector2 &translate, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
double estimateSDFError(const BitmapConstRef<float, 4> &sdf, const Shape &shape, const Vector2 &scale, const Vector2 &translate, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
}