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sdf-error-estimation.h

sdf-error-estimation.h 2.3 KB
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  1. 

  2. #pragma once
    3. 

  3. 

  4. #include "Vector2.h"
    5. 

  5. #include "Shape.h"
    6. 

  6. #include "Projection.h"
    7. 

  7. #include "Scanline.h"
    8. 

  8. #include "BitmapRef.hpp"
    9. 

  9. 

  10. namespace msdfgen {
    11. 

  11. 

  12. /// Analytically constructs a scanline at y evaluating fill by linear interpolation of the SDF.
    13. 

  13. void scanlineSDF(Scanline &line, const BitmapConstRef<float, 1> &sdf, const Projection &projection, double y, bool inverseYAxis = false);
    14. 

  14. void scanlineSDF(Scanline &line, const BitmapConstRef<float, 3> &sdf, const Projection &projection, double y, bool inverseYAxis = false);
    15. 

  15. void scanlineSDF(Scanline &line, const BitmapConstRef<float, 4> &sdf, const Projection &projection, double y, bool inverseYAxis = false);
    16. 

  16. 

  17. /// Estimates the portion of the area that will be filled incorrectly when rendering using the SDF.
    18. 

  18. double estimateSDFError(const BitmapConstRef<float, 1> &sdf, const Shape &shape, const Projection &projection, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
    19. 

  19. double estimateSDFError(const BitmapConstRef<float, 3> &sdf, const Shape &shape, const Projection &projection, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
    20. 

  20. double estimateSDFError(const BitmapConstRef<float, 4> &sdf, const Shape &shape, const Projection &projection, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
    21. 

  21. 

  22. // Old version of the function API's kept for backwards compatibility
    23. 

  23. void scanlineSDF(Scanline &line, const BitmapConstRef<float, 1> &sdf, const Vector2 &scale, const Vector2 &translate, bool inverseYAxis, double y);
    24. 

  24. void scanlineSDF(Scanline &line, const BitmapConstRef<float, 3> &sdf, const Vector2 &scale, const Vector2 &translate, bool inverseYAxis, double y);
    25. 

  25. void scanlineSDF(Scanline &line, const BitmapConstRef<float, 4> &sdf, const Vector2 &scale, const Vector2 &translate, bool inverseYAxis, double y);
    26. 

  26. double estimateSDFError(const BitmapConstRef<float, 1> &sdf, const Shape &shape, const Vector2 &scale, const Vector2 &translate, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
    27. 

  27. double estimateSDFError(const BitmapConstRef<float, 3> &sdf, const Shape &shape, const Vector2 &scale, const Vector2 &translate, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
    28. 

  28. double estimateSDFError(const BitmapConstRef<float, 4> &sdf, const Shape &shape, const Vector2 &scale, const Vector2 &translate, int scanlinesPerRow, FillRule fillRule = FILL_NONZERO);
    29. 

  29. 

  30. }
    31. 

  31.