66 lines
4.0 KiB
C++
66 lines
4.0 KiB
C++
|
|
#pragma once
|
|
|
|
/*
|
|
* MULTI-CHANNEL SIGNED DISTANCE FIELD GENERATOR v1.9 (2021-05-28)
|
|
* ---------------------------------------------------------------
|
|
* A utility by Viktor Chlumsky, (c) 2014 - 2021
|
|
*
|
|
* 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/arithmetics.hpp"
|
|
#include "core/Vector2.h"
|
|
#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"
|
|
|
|
#define MSDFGEN_VERSION "1.9"
|
|
|
|
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());
|
|
|
|
}
|