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// SPDX-License-Identifier: GPL-2.0-or-later
/** @file
* TODO: insert short description here
*//*
* Authors:
* see git history
* Fred
*
* Copyright (C) 2018 Authors
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#ifndef my_defs
#define my_defs
#include <cstdint>
// error codes (mostly obsolete)
enum
{
avl_no_err = 0, // 0 is the error code for "everything OK"
avl_bal_err = 1,
avl_rm_err = 2,
avl_ins_err = 3,
shape_euler_err = 4, // computations result in a non-eulerian graph, thus the function cannot do a proper polygon
// despite the rounding sheme, this still happen with uber-complex graphs
// note that coordinates are stored in double => double precision for the computation is not even
// enough to get exact results (need quadruple precision, i think).
shape_input_err = 5, // the function was given an incorrect input (not a polygon, or not eulerian)
shape_nothing_to_do = 6 // the function had nothing to do (zero offset, etc)
};
// return codes for the find function in the AVL tree (private)
enum
{
not_found = 0,
found_exact = 1,
found_on_left = 2,
found_on_right = 3,
found_between = 4
};
// types of cap for stroking polylines
enum butt_typ
{
butt_straight, // straight line
butt_square, // half square
butt_round, // half circle
butt_pointy // a little pointy hat
};
// types of joins for stroking paths
enum join_typ
{
join_straight, // a straight line
join_round, // arc of circle (in fact, one or two quadratic bezier curve chunks)
join_pointy // a miter join (uses the miter parameter)
};
typedef enum butt_typ ButtType;
typedef enum join_typ JoinType;
enum fill_typ
{
fill_oddEven = 0,
fill_nonZero = 1,
fill_positive = 2,
fill_justDont = 3
};
typedef enum fill_typ FillRule;
// info for a run of pixel to fill
struct raster_info {
int startPix,endPix; // start and end pixel from the polygon POV
int sth,stv; // coordinates for the first pixel in the run, in (possibly another) POV
uint32_t* buffer; // pointer to the first pixel in the run
};
typedef void (*RasterInRunFunc) (raster_info &dest,void *data,int nst,float vst,int nen,float ven); // init for position ph,pv; the last parameter is a pointer
enum Side {
LEFT = 0,
RIGHT = 1
};
enum FirstOrLast {
FIRST = 0,
LAST = 1
};
#endif
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