#pragma once /* * MULTI-CHANNEL SIGNED DISTANCE FIELD GENERATOR * --------------------------------------------- * A utility by Viktor Chlumsky, (c) 2014 - 2023 * * The technique used to generate multi-channel distance fields in this code * has been developed by Viktor Chlumsky in 2014 for his master's thesis, * "Shape Decomposition for Multi-Channel Distance Fields". It provides improved * quality of sharp corners in glyphs and other 2D shapes compared to monochrome * distance fields. To reconstruct an image of the shape, apply the median of three * operation on the triplet of sampled signed distance values. * */ #include "core/base.h" #include "core/arithmetics.hpp" #include "core/Vector2.hpp" #include "core/Projection.h" #include "core/Scanline.h" #include "core/Shape.h" #include "core/BitmapRef.hpp" #include "core/Bitmap.h" #include "core/bitmap-interpolation.hpp" #include "core/pixel-conversion.hpp" #include "core/edge-coloring.h" #include "core/generator-config.h" #include "core/msdf-error-correction.h" #include "core/render-sdf.h" #include "core/rasterization.h" #include "core/sdf-error-estimation.h" #include "core/save-bmp.h" #include "core/save-tiff.h" #include "core/shape-description.h" namespace msdfgen { /// Generates a conventional single-channel signed distance field. void generateSDF(const BitmapRef<float, 1> &output, const Shape &shape, const Projection &projection, double range, const GeneratorConfig &config = GeneratorConfig()); /// Generates a single-channel signed pseudo-distance field. void generatePseudoSDF(const BitmapRef<float, 1> &output, const Shape &shape, const Projection &projection, double range, const GeneratorConfig &config = GeneratorConfig()); /// Generates a multi-channel signed distance field. Edge colors must be assigned first! (See edgeColoringSimple) void generateMSDF(const BitmapRef<float, 3> &output, const Shape &shape, const Projection &projection, double range, const MSDFGeneratorConfig &config = MSDFGeneratorConfig()); /// Generates a multi-channel signed distance field with true distance in the alpha channel. Edge colors must be assigned first. void generateMTSDF(const BitmapRef<float, 4> &output, const Shape &shape, const Projection &projection, double range, const MSDFGeneratorConfig &config = MSDFGeneratorConfig()); // Old version of the function API's kept for backwards compatibility void generateSDF(const BitmapRef<float, 1> &output, const Shape &shape, double range, const Vector2 &scale, const Vector2 &translate, bool overlapSupport = true); void generatePseudoSDF(const BitmapRef<float, 1> &output, const Shape &shape, double range, const Vector2 &scale, const Vector2 &translate, bool overlapSupport = true); void generateMSDF(const BitmapRef<float, 3> &output, const Shape &shape, double range, const Vector2 &scale, const Vector2 &translate, const ErrorCorrectionConfig &errorCorrectionConfig = ErrorCorrectionConfig(), bool overlapSupport = true); void generateMTSDF(const BitmapRef<float, 4> &output, const Shape &shape, double range, const Vector2 &scale, const Vector2 &translate, const ErrorCorrectionConfig &errorCorrectionConfig = ErrorCorrectionConfig(), bool overlapSupport = true); // Original simpler versions of the previous functions, which work well under normal circumstances, but cannot deal with overlapping contours. void generateSDF_legacy(const BitmapRef<float, 1> &output, const Shape &shape, double range, const Vector2 &scale, const Vector2 &translate); void generatePseudoSDF_legacy(const BitmapRef<float, 1> &output, const Shape &shape, double range, const Vector2 &scale, const Vector2 &translate); void generateMSDF_legacy(const BitmapRef<float, 3> &output, const Shape &shape, double range, const Vector2 &scale, const Vector2 &translate, ErrorCorrectionConfig errorCorrectionConfig = ErrorCorrectionConfig()); void generateMTSDF_legacy(const BitmapRef<float, 4> &output, const Shape &shape, double range, const Vector2 &scale, const Vector2 &translate, ErrorCorrectionConfig errorCorrectionConfig = ErrorCorrectionConfig()); }
Codebase Browser
godot