diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/livarot/int-line.h | |
parent | Initial commit. (diff) | |
download | inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.tar.xz inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/livarot/int-line.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/livarot/int-line.h b/src/livarot/int-line.h new file mode 100644 index 0000000..576cfcf --- /dev/null +++ b/src/livarot/int-line.h @@ -0,0 +1,119 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/** @file + * TODO: insert short description here + *//* + * Authors: see git history + * + * Copyright (C) 2018 Authors + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ +#ifndef INKSCAPE_LIVAROT_INT_LINE_H +#define INKSCAPE_LIVAROT_INT_LINE_H + +#include "livarot/LivarotDefs.h" +#include "object/object-set.h" // For BooleanOp + +/** \file + * Coverage with integer boundaries. + */ + +class BitLigne; +class FloatLigne; + +/// A run with integer boundaries. +struct int_ligne_run { + int st; + int en; + float vst; + float ven; +}; + +/// Integer boundary. +struct int_ligne_bord { + int pos; + bool start; + float val; + int other; + int prev; + int next; +}; + +/** + * Coverage with integer boundaries. + * + * This is what we want for actual rasterization. It contains the same + * stuff as FloatLigne, but technically only the Copy() functions are used. + */ +class IntLigne { +public: + + int nbBord; + int maxBord; + int_ligne_bord* bords; + + int nbRun; + int maxRun; + int_ligne_run* runs; + + int firstAc; + int lastAc; + + IntLigne(); + virtual ~IntLigne(); + + void Reset(); + int AddBord(int spos, float sval, int epos, float eval); + + void Flatten(); + + void Affiche(); + + int AddRun(int st, int en, float vst, float ven); + + void Booleen(IntLigne* a, IntLigne* b, BooleanOp mod); + + void Copy(IntLigne* a); + void Copy(FloatLigne* a); + void Copy(BitLigne* a); + void Copy(int nbSub,BitLigne **a); + + void Enqueue(int no); + void Dequeue(int no); + float RemainingValAt(int at); + + static int CmpBord(void const *p1, void const *p2) { + int_ligne_bord const *d1 = reinterpret_cast<int_ligne_bord const *>(p1); + int_ligne_bord const *d2 = reinterpret_cast<int_ligne_bord const *>(p2); + + if ( d1->pos == d2->pos ) { + if ( d1->start && !(d2->start) ) { + return 1; + } + if ( !(d1->start) && d2->start ) { + return -1; + } + return 0; + } + return (( d1->pos < d2->pos ) ? -1 : 1); + }; + + inline float ValAt(int at, int ps, int pe, float vs, float ve) { + return ((at - ps) * ve + (pe - at) * vs) / (pe - ps); + }; + + void Raster(raster_info &dest, void *color, RasterInRunFunc worker); +}; + + +#endif + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : |