mirror of
git://projects.qi-hardware.com/eda-tools.git
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606 lines
12 KiB
C
606 lines
12 KiB
C
/*
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* lib.c - Parse Eeschema .lib file
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*
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* Written 2016 by Werner Almesberger
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* Copyright 2016 by Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <math.h>
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#include <assert.h>
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#include "util.h"
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#include "misc.h"
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#include "style.h"
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#include "fig.h"
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#include "text.h"
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#include "lib.h"
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enum text_style {
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text_normal,
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};
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struct obj {
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enum obj_type {
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obj_poly,
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obj_rect,
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obj_circ,
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obj_arc,
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obj_text,
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obj_pin,
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} type;
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unsigned unit;
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unsigned convert;
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union {
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struct poly_obj {
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int thick;
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char fill;
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int points;
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int *x;
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int *y;
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} poly;
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struct rect_obj {
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int thick;
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char fill;
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int sx, sy;
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int ex, ey;
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} rect;
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struct circ_obj {
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int x, y;
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int r;
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int thick;
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char fill;
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} circ;
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struct arc_obj {
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int x, y;
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int r;
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int start_a, end_a;
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int thick;
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char fill;
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} arc;
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struct text_obj {
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int orient;
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int x, y;
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int dim;
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char *s;
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enum text_style style;
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char hor_align;
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char vert_align;
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} text;
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struct pin_obj {
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char *name;
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char *number;
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int x, y;
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int length;
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char orient;
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int number_size;
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int name_size;
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char etype;
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// @@@ shape
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} pin;
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} u;
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struct obj *next;
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};
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struct comp {
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const char *name;
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unsigned visible; /* visible fields, bit mask */
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bool show_pin_name;
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bool show_pin_num;
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unsigned name_offset;
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struct obj *objs;
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struct comp *next;
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};
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/* ----- Drawing ----------------------------------------------------------- */
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static struct comp *comps = NULL;
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static struct comp *curr_comp; /* current component */
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static struct comp **next_comp = &comps;
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static struct obj **next_obj;
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static void draw_poly(const struct poly_obj *poly, int m[6])
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{
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int n = poly->points;
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int x[n];
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int y[n];
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int i;
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for (i = 0; i != n; i++) {
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x[i] = mx(poly->x[i], poly->y[i], m);
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y[i] = my(poly->x[i], poly->y[i], m);
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}
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fig_poly(n, x, y, COLOR_COMP_DWG, COLOR_NONE, LAYER_COMP_DWG);
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switch (poly->fill) {
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case 'N':
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break;
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case 'F':
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fig_poly(n, x, y, COLOR_NONE, COLOR_COMP_DWG,
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LAYER_COMP_DWG_BG);
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break;
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case 'f':
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fig_poly(n, x, y, COLOR_NONE, COLOR_COMP_DWG_BG,
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LAYER_COMP_DWG_BG);
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break;
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default:
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abort();
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}
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}
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static void draw_rect(const struct rect_obj *rect, int m[6])
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{
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int sx = mx(rect->sx, rect->sy, m);
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int sy = my(rect->sx, rect->sy, m);
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int ex = mx(rect->ex, rect->ey, m);
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int ey = my(rect->ex, rect->ey, m);
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fig_rect(sx, sy, ex, ey, COLOR_COMP_DWG, COLOR_NONE, LAYER_COMP_DWG);
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switch (rect->fill) {
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case 'N':
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break;
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case 'F':
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fig_rect(sx, sy, ex, ey, COLOR_NONE, COLOR_COMP_DWG,
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LAYER_COMP_DWG_BG);
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break;
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case 'f':
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fig_rect(sx, sy, ex, ey, COLOR_NONE, COLOR_COMP_DWG_BG,
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LAYER_COMP_DWG_BG);
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break;
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default:
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abort();
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}
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}
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static void draw_circ(const struct circ_obj *circ, int m[6])
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{
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int x = mx(circ->x, circ->y, m);
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int y = my(circ->x, circ->y, m);
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int r = circ->r;
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fig_circ(x, y, r, COLOR_COMP_DWG, COLOR_NONE, LAYER_COMP_DWG);
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switch (circ->fill) {
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case 'N':
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break;
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case 'F':
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fig_circ(x, y, r, COLOR_NONE, COLOR_COMP_DWG,
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LAYER_COMP_DWG_BG);
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break;
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case 'f':
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fig_circ(x, y, r, COLOR_NONE, COLOR_COMP_DWG_BG,
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LAYER_COMP_DWG_BG);
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break;
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default:
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abort();
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}
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}
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static void draw_arc(const struct arc_obj *arc, int m[6])
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{
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int a = matrix_to_angle(m);
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int x = mx(arc->x, arc->y, m);
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int y = my(arc->x, arc->y, m);
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int sa = angle_add(arc->start_a, a);
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int ea = angle_add(arc->end_a, a);
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fig_arc(x, y, arc->r, sa, ea,
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COLOR_COMP_DWG, COLOR_NONE, LAYER_COMP_DWG);
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assert(arc->fill == 'N');
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}
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static void draw_pin(const struct comp *comp, const struct pin_obj *pin,
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int m[6])
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{
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int x[2], y[2];
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int dx = 0, dy = 0;
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int ox, oy, sx, sy;
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int rot;
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enum text_align hor, vert;
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switch (pin->orient) {
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case 'U':
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dy = 1;
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rot = 90;
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hor = text_min;
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break;
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case 'D':
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dy = -1;
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rot = 90;
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hor = text_max;
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break;
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case 'R':
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dx = 1;
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rot = 0;
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hor = text_min;
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break;
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case 'L':
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dx = -1;
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rot = 0;
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hor = text_max;
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break;
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default:
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abort();
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}
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x[0] = mx(pin->x, pin->y, m);
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y[0] = my(pin->x, pin->y, m);
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x[1] = mx(pin->x + dx * pin->length, pin->y + dy * pin->length, m);
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y[1] = my(pin->x + dx * pin->length, pin->y + dy * pin->length, m);
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fig_poly(2, x, y, COLOR_COMP_DWG, COLOR_NONE, LAYER_COMP_DWG);
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ox = dx * (pin->length + comp->name_offset);
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oy = dy * (pin->length + comp->name_offset);
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struct text name_txt = {
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.s = pin->name,
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.x = mx(pin->x + ox, pin->y + oy, m),
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.y = my(pin->x + ox, pin->y + oy, m),
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.size = pin->name_size,
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.rot = rot,
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.hor = hor,
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.vert = text_mid,
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};
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text_rot(&name_txt, matrix_to_angle(m));
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switch (name_txt.rot) {
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case 180:
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text_flip_x(&name_txt);
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break;
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default:
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break;
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}
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if (comp->show_pin_name)
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text_fig(&name_txt, COLOR_PIN_NAME, LAYER_PIN_NAME);
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ox = dx * pin->length / 2;
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oy = dy * pin->length / 2;
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sx = mxr(-dy * PIN_NUM_OFFSET, dx * PIN_NUM_OFFSET, m);
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sy = myr(-dy * PIN_NUM_OFFSET, dx * PIN_NUM_OFFSET, m);
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if (sx > 0)
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sx = -sx;
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if (sy > 0)
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sy = -sy;
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struct text num_txt = {
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.s = pin->number,
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.x = mx(pin->x + ox, pin->y + oy, m) + sx,
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.y = my(pin->x + ox, pin->y + oy, m) + sy,
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.size = pin->number_size,
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.rot = rot,
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.hor = text_mid,
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.vert = text_min,
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};
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text_rot(&num_txt, matrix_to_angle(m) % 180);
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if (comp->show_pin_num)
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text_fig(&num_txt, COLOR_PIN_NUMBER, LAYER_PIN_NUMBER);
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}
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static void draw_text(const struct text_obj *text, int m[6])
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{
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struct text txt = {
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.s = text->s,
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.size = text->dim,
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.x = mx(text->x, text->y, m),
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.y = my(text->x, text->y, m),
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.rot = matrix_to_angle(m),
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.hor = text_mid,
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.vert = text_mid,
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};
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switch (txt.rot) {
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case 180:
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text_flip_x(&txt);
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break;
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default:
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break;
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}
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text_fig(&txt, COLOR_COMP_DWG, WIDTH_COMP_DWG);
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}
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static void draw(const struct comp *comp, const struct obj *obj, int m[6])
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{
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switch (obj->type) {
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case obj_poly:
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draw_poly(&obj->u.poly, m);
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break;
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case obj_rect:
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draw_rect(&obj->u.rect, m);
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break;
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case obj_circ:
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draw_circ(&obj->u.circ, m);
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break;
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case obj_arc:
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draw_arc(&obj->u.arc, m);
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break;
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case obj_text:
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draw_text(&obj->u.text, m);
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break;
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case obj_pin:
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draw_pin(comp, &obj->u.pin, m);
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break;
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default:
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abort();
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}
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}
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const struct comp *lib_find(const char *name)
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{
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const struct comp *comp;
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for (comp = comps; comp; comp = comp->next)
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if (!strcmp(comp->name, name))
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return comp;
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fprintf(stderr, "\"%s\" not found\n", name);
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exit(1);
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}
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bool lib_field_visible(const struct comp *comp, int n)
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{
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return (comp->visible >> n) & 1;
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}
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void lib_exec(const struct comp *comp, unsigned unit, int m[4])
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{
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const struct obj *obj;
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for (obj = comp->objs; obj; obj = obj->next) {
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if (obj->unit && obj->unit != unit)
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continue;
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draw(comp, obj, m);
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}
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}
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/* ----- Text -------------------------------------------------------------- */
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static enum text_style decode_style(const char *s)
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{
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if (!strcmp(s, "Normal"))
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return text_normal;
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assert(0);
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}
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/* ----- Polygons ---------------------------------------------------------- */
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static bool parse_poly(struct poly_obj *poly, const char *line, int points)
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{
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int i, n;
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poly->points = points;
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poly->x = alloc_size(sizeof(int) * points);
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poly->y = alloc_size(sizeof(int) * points);
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for (i = 0; i != points; i++) {
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if (sscanf(line, "%d %d %n",
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poly->x + i, poly->y + i, &n) != 2)
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return 0;
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line += n;
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}
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if (sscanf(line, "%c", &poly->fill) != 1)
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return 0;
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return 1;
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}
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/* ----- Definitions ------------------------------------------------------- */
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static bool parse_def(const char *line)
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{
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char *s;
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char draw_num, draw_name;
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unsigned name_offset;
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if (sscanf(line, "DEF %ms %*s %*d %u %c %c",
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&s, &name_offset, &draw_num, &draw_name) != 4)
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return 0;
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curr_comp = alloc_type(struct comp);
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if (*s == '~')
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s++;
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curr_comp->name = s;
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curr_comp->visible = 0;
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curr_comp->show_pin_name = draw_name == 'Y';
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curr_comp->show_pin_num = draw_num == 'Y';
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curr_comp->name_offset = name_offset;
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curr_comp->objs = NULL;
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next_obj = &curr_comp->objs;
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curr_comp->next = NULL;
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*next_comp = curr_comp;
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next_comp = &curr_comp->next;
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return 1;
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}
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/* ----- Arcs -------------------------------------------------------------- */
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static bool parse_arc(struct obj *obj, const char *line)
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{
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struct arc_obj *arc = &obj->u.arc;
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int a1, a2;
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if (sscanf(line, "A %d %d %d %d %d %u %u %u %c",
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&arc->x, &arc->y, &arc->r, &a1, &a2, &obj->unit, &obj->convert,
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&arc->thick, &arc->fill) != 9)
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return 0;
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/*
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* KiCad arcs can be clockwise or counter-clockwise. They must always
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* be smaller than 180 degrees.
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*/
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while (a1 < 0)
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a1 += 3600;
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while (a2 < 0)
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a2 += 3600;
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a1 %= 3600;
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a2 %= 3600;
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if (a2 < a1)
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a2 += 3600;
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assert(a2 - a1 != 1800);
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if (a2 - a1 > 1800)
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swap(a1, a2);
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arc->start_a = (a1 % 3600) / 10;
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arc->end_a = (a2 % 3600) / 10;
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return 1;
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}
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/* ----- Library parser ---------------------------------------------------- */
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bool lib_parse(struct lib_ctx *ctx, const char *line)
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{
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int n = 0;
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unsigned points;
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struct obj *obj;
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char *style;
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unsigned zero1, zero2;
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char vis;
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ctx->lineno++;
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switch (ctx->state) {
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case lib_skip:
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if (parse_def(line)) {
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ctx->state = lib_def;
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return 1;
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}
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return 1;
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case lib_def:
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if (sscanf(line, "DRAW%n", &n) == 0 && n) {
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ctx->state = lib_draw;
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return 1;
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}
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if (sscanf(line, "F%d \"\" %*d %*d %*d %*c %c", &n, &vis) == 2
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|| sscanf(line, "F%d \"%*[^\"]\" %*d %*d %*d %*c %c",
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&n, &vis) == 2) {
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if (vis == 'V')
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curr_comp->visible |= 1 << n;
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return 1;
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}
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/* @@@ explicitly ignore FPLIST */
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return 1;
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case lib_draw:
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if (sscanf(line, "ENDDRAW%n", &n) == 0 && n) {
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ctx->state = lib_skip;
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return 1;
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}
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obj = alloc_type(struct obj);
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obj->next = NULL;
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*next_obj = obj;
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next_obj = &obj->next;
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if (sscanf(line, "P %u %u %u %u %n",
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&points, &obj->unit, &obj->convert, &obj->u.poly.thick,
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&n) == 4) {
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obj->type = obj_poly;
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if (parse_poly(&obj->u.poly, line + n, points))
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return 1;
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break;
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}
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if (sscanf(line, "S %d %d %d %d %u %u %d %c",
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&obj->u.rect.sx, &obj->u.rect.sy, &obj->u.rect.ex,
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&obj->u.rect.ey, &obj->unit, &obj->convert,
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&obj->u.rect.thick, &obj->u.rect.fill) == 8) {
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obj->type = obj_rect;
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return 1;
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}
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if (sscanf(line, "C %d %d %d %u %u %d %c",
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&obj->u.circ.x, &obj->u.circ.y, &obj->u.circ.r,
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&obj->unit, &obj->convert, &obj->u.circ.thick,
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&obj->u.circ.fill) == 7) {
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obj->type = obj_circ;
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return 1;
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}
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if (parse_arc(obj, line)) {
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obj->type = obj_arc;
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return 1;
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}
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n = sscanf(line,
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"T %d %d %d %d %u %u %u \"%m[^\"]\" %ms %u %c %c",
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|
&obj->u.text.orient, &obj->u.text.x, &obj->u.text.y,
|
|
&obj->u.text.dim, &zero1, &obj->unit, &obj->convert,
|
|
&obj->u.text.s, &style, &zero2,
|
|
&obj->u.text.hor_align, &obj->u.text.vert_align);
|
|
if (n != 12)
|
|
n = sscanf(line,
|
|
"T %d %d %d %d %u %u %u %ms %ms %u %c %c",
|
|
&obj->u.text.orient, &obj->u.text.x, &obj->u.text.y,
|
|
&obj->u.text.dim, &zero1, &obj->unit, &obj->convert,
|
|
&obj->u.text.s, &style, &zero2,
|
|
&obj->u.text.hor_align, &obj->u.text.vert_align);
|
|
if (n == 12) {
|
|
if (zero1 || zero2) {
|
|
fprintf(stderr, "%u: only understand 0 x x\n",
|
|
ctx->lineno);
|
|
exit(1);
|
|
}
|
|
obj->u.text.style = decode_style(style);
|
|
obj->type = obj_text;
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "X %ms %ms %d %d %d %c %d %d %u %u %c",
|
|
&obj->u.pin.name, &obj->u.pin.number,
|
|
&obj->u.pin.x, &obj->u.pin.y, &obj->u.pin.length,
|
|
&obj->u.pin.orient,
|
|
&obj->u.pin.number_size, &obj->u.pin.name_size,
|
|
&obj->unit, &obj->convert, &obj->u.pin.etype) == 11) {
|
|
obj->type = obj_pin;
|
|
return 1;
|
|
}
|
|
break;
|
|
default:
|
|
abort();
|
|
}
|
|
fprintf(stderr, "%u: cannot parse\n\"%s\"\n", ctx->lineno, line);
|
|
exit(1);
|
|
}
|
|
|
|
|
|
void lib_init(struct lib_ctx *ctx)
|
|
{
|
|
ctx->state = lib_skip;
|
|
ctx->lineno = 0;
|
|
}
|