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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:24:48 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:24:48 +0000
commitcca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch)
tree146f39ded1c938019e1ed42d30923c2ac9e86789 /src/livarot/int-line.h
parentInitial commit. (diff)
downloadinkscape-upstream.tar.xz
inkscape-upstream.zip
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/livarot/int-line.h')
-rw-r--r--src/livarot/int-line.h119
1 files changed, 119 insertions, 0 deletions
diff --git a/src/livarot/int-line.h b/src/livarot/int-line.h
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+++ b/src/livarot/int-line.h
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+// 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 :