mirror of
git://projects.qi-hardware.com/eda-tools.git
synced 2024-08-24 22:08:02 +03:00
673 lines
14 KiB
C
673 lines
14 KiB
C
/*
|
|
* sch.c - Parse Eeschema .sch file
|
|
*
|
|
* Written 2016 by Werner Almesberger
|
|
* Copyright 2016 by Werner Almesberger
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
|
|
#define _GNU_SOURCE /* for asprintf */
|
|
#include <stddef.h>
|
|
#include <stdbool.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
#include "util.h"
|
|
#include "misc.h"
|
|
#include "style.h"
|
|
#include "gfx.h"
|
|
#include "dwg.h"
|
|
#include "lib.h"
|
|
#include "sch.h"
|
|
|
|
|
|
/* ----- Rendering --------------------------------------------------------- */
|
|
|
|
|
|
static void dump_field(const struct comp_field *field, const int m[6])
|
|
{
|
|
struct text txt = field->txt;
|
|
int dx, dy;
|
|
|
|
dx = txt.x - m[0];
|
|
dy = txt.y - m[3];
|
|
txt.x = mx(dx, dy, m);
|
|
txt.y = my(dx, dy, m);
|
|
|
|
text_rot(&txt, matrix_to_angle(m));
|
|
|
|
switch (txt.rot) {
|
|
case 180:
|
|
text_rot(&txt, 180);
|
|
txt.hor = text_flip(txt.hor);
|
|
txt.vert = text_flip(txt.vert);
|
|
break;
|
|
case 270:
|
|
text_rot(&txt, 180);
|
|
txt.vert = text_flip(txt.vert);
|
|
txt.hor = text_flip(txt.hor);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (matrix_is_mirrored(m)) {
|
|
if ((txt.rot % 180) == 0)
|
|
txt.hor = text_flip(txt.hor);
|
|
else
|
|
txt.vert = text_flip(txt.vert);
|
|
}
|
|
|
|
text_fig(&txt, COLOR_FIELD, LAYER_FIELD);
|
|
}
|
|
|
|
|
|
static void do_hsheet_text(const struct sch_obj *obj,
|
|
const struct sch_sheet *sheet)
|
|
{
|
|
char *s;
|
|
|
|
assert(sheet->sheet && sheet->file);
|
|
|
|
struct text sheet_txt = {
|
|
.size = sheet->sheet_dim,
|
|
.x = obj->x,
|
|
.y = obj->y,
|
|
.rot = 0,
|
|
.hor = text_min,
|
|
.vert = text_min,
|
|
};
|
|
if (asprintf(&s, "Sheet: %s", sheet->sheet)) {}
|
|
sheet_txt.s = s; /* work around "const" mismatch */
|
|
|
|
struct text file_txt = {
|
|
.size = sheet->file_dim,
|
|
.x = obj->x,
|
|
.y = obj->y,
|
|
.rot = 0,
|
|
.hor = text_min,
|
|
.vert = text_max,
|
|
};
|
|
if (asprintf(&s, "File: %s", sheet->file)) {}
|
|
file_txt.s = s; /* work around "const" mismatch */
|
|
|
|
if (sheet->rotated) {
|
|
sheet_txt.rot = file_txt.rot = 90;
|
|
sheet_txt.x -= HSHEET_FIELD_OFFSET;
|
|
sheet_txt.y += sheet->h;
|
|
file_txt.x += sheet->w + HSHEET_FIELD_OFFSET;
|
|
file_txt.y += sheet->h;
|
|
} else {
|
|
sheet_txt.y -= HSHEET_FIELD_OFFSET;
|
|
file_txt.y += sheet->h + HSHEET_FIELD_OFFSET;
|
|
}
|
|
|
|
text_fig(&sheet_txt, COLOR_HSHEET_SHEET, LAYER_HSHEET_FIELD);
|
|
text_fig(&file_txt, COLOR_HSHEET_FILE, LAYER_HSHEET_FIELD);
|
|
|
|
// free((void *) ctx->sheet);
|
|
// free((void *) ctx->file);
|
|
}
|
|
|
|
|
|
static void render_sheet(const struct sch_obj *obj,
|
|
const struct sch_sheet *sheet)
|
|
{
|
|
const struct sheet_field *field;
|
|
|
|
gfx_rect(obj->x, obj->y, obj->x + sheet->w, obj->y + sheet->h,
|
|
COLOR_HSHEET_BOX, COLOR_NONE, LAYER_HSHEET_BOX);
|
|
do_hsheet_text(obj, sheet);
|
|
|
|
for (field = sheet->fields; field; field = field->next)
|
|
dwg_hlabel(obj->x, obj->y, field->s,
|
|
field->side, field->dim,
|
|
field->shape);
|
|
// free(field->s)
|
|
}
|
|
|
|
|
|
void sch_render(const struct sch_ctx *ctx)
|
|
{
|
|
const struct sch_obj *obj;
|
|
|
|
for (obj = ctx->objs; obj; obj = obj->next)
|
|
switch (obj->type) {
|
|
case sch_obj_wire:
|
|
{
|
|
const struct sch_wire *wire = &obj->u.wire;
|
|
|
|
wire->fn(obj->x, obj->y, wire->ex, wire->ey);
|
|
}
|
|
break;
|
|
case sch_obj_junction:
|
|
dwg_junction(obj->x, obj->y);
|
|
break;
|
|
case sch_obj_noconn:
|
|
dwg_noconn(obj->x, obj->y);
|
|
break;
|
|
case sch_obj_text:
|
|
{
|
|
const struct sch_text *text = &obj->u.text;
|
|
|
|
text->fn(obj->x, obj->y, text->s, text->dir,
|
|
text->dim, text->shape);
|
|
}
|
|
break;
|
|
case sch_obj_comp:
|
|
{
|
|
const struct sch_comp *comp = &obj->u.comp;
|
|
const struct comp_field *field;
|
|
|
|
lib_exec(comp->comp, comp->unit, comp->m);
|
|
for (field = comp->fields; field;
|
|
field = field->next)
|
|
dump_field(field, comp->m);
|
|
}
|
|
break;
|
|
case sch_obj_sheet:
|
|
render_sheet(obj, &obj->u.sheet);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/* ----- (Global) Labels --------------------------------------------------- */
|
|
|
|
|
|
static enum dwg_shape do_decode_shape(const char *s)
|
|
{
|
|
if (!strcmp(s, "UnSpc"))
|
|
return dwg_unspec;
|
|
if (!strcmp(s, "Input"))
|
|
return dwg_in;
|
|
if (!strcmp(s, "Output"))
|
|
return dwg_out;
|
|
if (!strcmp(s, "3State"))
|
|
return dwg_tri;
|
|
if (!strcmp(s, "BiDi"))
|
|
return dwg_bidir;
|
|
fprintf(stderr, "unknown shape: \"%s\"\n", s);
|
|
exit(1);
|
|
}
|
|
|
|
|
|
static enum dwg_shape decode_shape(const char *s)
|
|
{
|
|
enum dwg_shape res;
|
|
|
|
res = do_decode_shape(s);
|
|
free((void *) s);
|
|
return res;
|
|
}
|
|
|
|
|
|
/* ----- Text -------------------------------------------------------------- */
|
|
|
|
|
|
static void draw_text(int x, int y, const char *s, int dir, int dim,
|
|
enum dwg_shape shape)
|
|
{
|
|
struct text txt = {
|
|
.s = s,
|
|
.size = dim,
|
|
.x = x,
|
|
.y = y,
|
|
.rot = 0,
|
|
.hor = text_min,
|
|
.vert = text_min,
|
|
};
|
|
|
|
switch (dir) {
|
|
case 0: /* right */
|
|
break;
|
|
case 1: /* up */
|
|
text_rot(&txt, 90);
|
|
break;
|
|
case 2: /* left */
|
|
txt.hor = text_max;
|
|
break;
|
|
case 3: /* down */
|
|
text_rot(&txt, 90);
|
|
txt.hor = text_max;
|
|
break;
|
|
default:
|
|
assert(2 + 2 == 5);
|
|
}
|
|
|
|
text_fig(&txt, COLOR_TEXT, LAYER_TEXT);
|
|
}
|
|
|
|
|
|
/* ----- Component fields -------------------------------------------------- */
|
|
|
|
|
|
void decode_alignment(struct text *txt, char hor, char vert)
|
|
{
|
|
switch (hor) {
|
|
case 'L':
|
|
txt->hor = text_min;
|
|
break;
|
|
case 'C':
|
|
txt->hor = text_mid;
|
|
break;
|
|
case 'R':
|
|
txt->hor = text_max;
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
|
|
switch (vert) {
|
|
case 'B':
|
|
txt->vert = text_min;
|
|
break;
|
|
case 'C':
|
|
txt->vert = text_mid;
|
|
break;
|
|
case 'T':
|
|
txt->vert = text_max;
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
|
|
|
|
static bool parse_field(struct sch_ctx *ctx, const char *line)
|
|
{
|
|
struct sch_comp *comp = &ctx->obj.u.comp;
|
|
int n;
|
|
unsigned flags;
|
|
char hv, hor, vert, italic, bold;
|
|
struct comp_field *field;
|
|
struct text *txt;
|
|
|
|
field = alloc_type(struct comp_field);
|
|
txt = &field->txt;
|
|
|
|
if (sscanf(line, "F %d \"\" %c %d %d %u %u %c %c%c%c",
|
|
&n, &hv, &txt->x, &txt->y, &txt->size, &flags, &hor, &vert,
|
|
&italic, &bold) == 10) {
|
|
free(field);
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "F %d \"%m[^\"]\" %c %d %d %u %u %c %c%c%c",
|
|
&n, &txt->s, &hv, &txt->x, &txt->y, &txt->size, &flags,
|
|
&hor, &vert, &italic, &bold) != 11)
|
|
return 0;
|
|
|
|
if (flags || !lib_field_visible(comp->comp, n)) {
|
|
free(field);
|
|
return 1;
|
|
}
|
|
|
|
if (n == 0 && comp->comp->units > 1) {
|
|
int len = strlen(txt->s);
|
|
char *s;
|
|
|
|
s = realloc((void *) txt->s, len + 3);
|
|
if (!s) {
|
|
perror("realloc");
|
|
exit(1);
|
|
}
|
|
if (comp->unit <= 26)
|
|
sprintf(s + len, "%c", 'A' + comp->unit - 1);
|
|
else
|
|
sprintf(s + len, "%c%c",
|
|
'A' + (comp->unit - 1) / 26 - 1,
|
|
'A' + (comp->unit - 1) % 26);
|
|
}
|
|
|
|
field->next = comp->fields;
|
|
comp->fields = field;
|
|
|
|
switch (hv) {
|
|
case 'H':
|
|
txt->rot = 0;
|
|
break;
|
|
case 'V':
|
|
txt->rot = 90;
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
|
|
decode_alignment(txt, hor, vert);
|
|
|
|
// @@@ decode font
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/* ----- Sheet field ------------------------------------------------------- */
|
|
|
|
|
|
static enum dwg_shape decode_form(char form)
|
|
{
|
|
switch (form) {
|
|
case 'O':
|
|
return dwg_in;
|
|
case 'I':
|
|
return dwg_out;
|
|
case 'B':
|
|
/* fall through */
|
|
case 'T':
|
|
return dwg_bidir;
|
|
case 'U':
|
|
return dwg_unspec;
|
|
default:
|
|
fprintf(stderr, "unknown form: \"%c\"\n", form);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
|
|
static int decode_side(char side)
|
|
{
|
|
switch (side) {
|
|
case 'L':
|
|
return 2; /* left */
|
|
case 'B':
|
|
return 1; /* up */
|
|
case 'R':
|
|
return 0; /* right */
|
|
case 'T':
|
|
return 3; /* down */
|
|
default:
|
|
fprintf(stderr, "unknown side: \"%c\"\n", side);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
|
|
static bool parse_hsheet_field(struct sch_ctx *ctx, const char *line)
|
|
{
|
|
struct sch_sheet *sheet = &ctx->obj.u.sheet;
|
|
char *s;
|
|
char form, side;
|
|
unsigned n, dim;
|
|
struct sheet_field *field;
|
|
|
|
if (sscanf(line, "F%d \"%m[^\"]\" %u", &n, &s, &dim) == 3) {
|
|
switch (n) {
|
|
case 0:
|
|
sheet->sheet = s;
|
|
sheet->sheet_dim = dim;
|
|
return 1;
|
|
case 1:
|
|
sheet->file = s;
|
|
sheet->file_dim = dim;
|
|
return 1;
|
|
default:
|
|
assert(0);
|
|
}
|
|
}
|
|
|
|
field = alloc_type(struct sheet_field);
|
|
if (sscanf(line, "F%d \"%m[^\"]\" %c %c %d %d %u",
|
|
&n, &field->s, &form, &side, &field->x, &field->y, &field->dim)
|
|
!= 7) {
|
|
free(field);
|
|
return 0;
|
|
}
|
|
assert(n >= 2);
|
|
|
|
if (side == 'B' || side == 'T') {
|
|
/*
|
|
* This is beautiful: since there is no indication for rotation
|
|
* on the hsheet, or the sheet or file fields, we need to look
|
|
* at whether the imported sheet pins go left or right (no
|
|
* rotation) or whether they go top or bottom (rotation).
|
|
*
|
|
* A sheet with no imported pins lacks these hints, and is
|
|
* therefore always assumed to be without rotation.
|
|
*
|
|
* Eeschema is careful to be consistent, and does not allow
|
|
* sheets with no imported pins to be rotated. Even better, it
|
|
* flips rotated sheets where the last imported pin is deleted
|
|
* back.
|
|
*/
|
|
sheet->rotated = 1;
|
|
}
|
|
field->shape = decode_form(form);
|
|
field->side = decode_side(side);
|
|
|
|
field->next = sheet->fields;
|
|
sheet->fields = field;
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/* ----- Schematics parser ------------------------------------------------- */
|
|
|
|
|
|
static void submit_obj(struct sch_ctx *ctx, enum sch_obj_type type)
|
|
{
|
|
struct sch_obj *obj;
|
|
|
|
obj = alloc_type(struct sch_obj);
|
|
*obj = ctx->obj;
|
|
obj->type = type;
|
|
obj->next = ctx->objs;
|
|
ctx->objs = obj;
|
|
}
|
|
|
|
|
|
bool sch_parse(struct sch_ctx *ctx, const char *line)
|
|
{
|
|
struct sch_obj *obj = &ctx->obj;
|
|
int n = 0;
|
|
char *s;
|
|
|
|
ctx->lineno++;
|
|
|
|
switch (ctx->state) {
|
|
case sch_basic:
|
|
if (sscanf(line, "$Comp%n", &n) == 0 && n) {
|
|
ctx->state = sch_comp;
|
|
obj->u.comp.fields = NULL;
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "$Sheet%n", &n) == 0 && n) {
|
|
ctx->state = sch_sheet;
|
|
obj->u.sheet.sheet = NULL;
|
|
obj->u.sheet.file = NULL;
|
|
obj->u.sheet.rotated = 0;
|
|
obj->u.sheet.fields = NULL;
|
|
return 1;
|
|
}
|
|
|
|
/* Text */
|
|
|
|
struct sch_text *text = &obj->u.text;
|
|
|
|
if (sscanf(line, "Text Notes %d %d %d %d",
|
|
&obj->x, &obj->y, &text->dir, &text->dim) == 4) {
|
|
ctx->state = sch_text;
|
|
obj->u.text.fn = draw_text;
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "Text GLabel %d %d %d %d %ms",
|
|
&obj->x, &obj->y, &text->dir, &text->dim, &s) == 5) {
|
|
ctx->state = sch_text;
|
|
obj->u.text.fn = dwg_glabel;
|
|
obj->u.text.shape = decode_shape(s);
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "Text HLabel %d %d %d %d %ms",
|
|
&obj->x, &obj->y, &text->dir, &text->dim, &s) == 5) {
|
|
ctx->state = sch_text;
|
|
obj->u.text.fn = dwg_hlabel;
|
|
obj->u.text.shape = decode_shape(s);
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "Text Label %d %d %d %d",
|
|
&obj->x, &obj->y, &text->dir, &text->dim) == 4) {
|
|
ctx->state = sch_text;
|
|
obj->u.text.fn = dwg_label;
|
|
return 1;
|
|
}
|
|
|
|
/* Connection */
|
|
|
|
if (sscanf(line, "Connection ~ %d %d", &obj->x, &obj->y) == 2) {
|
|
submit_obj(ctx, sch_obj_junction);
|
|
return 1;
|
|
}
|
|
|
|
/* NoConn */
|
|
|
|
if (sscanf(line, "NoConn ~ %d %d", &obj->x, &obj->y) == 2) {
|
|
submit_obj(ctx, sch_obj_noconn);
|
|
return 1;
|
|
}
|
|
|
|
/* Wire */
|
|
|
|
if (sscanf(line, "Wire Wire Line%n", &n) == 0 && n) {
|
|
ctx->state = sch_wire;
|
|
obj->u.wire.fn = dwg_wire;
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "Wire Bus Line%n", &n) == 0 && n) {
|
|
ctx->state = sch_wire;
|
|
obj->u.wire.fn = dwg_bus;
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "Wire Notes Line%n", &n) == 0 && n) {
|
|
ctx->state = sch_wire;
|
|
obj->u.wire.fn = dwg_line;
|
|
return 1;
|
|
}
|
|
|
|
/* Entry */
|
|
|
|
/*
|
|
* Documentation mentions the following additional variants:
|
|
*
|
|
* - Entry Wire Line equivalent:
|
|
* Wire Wire Bus
|
|
* Entry Wire Bus
|
|
*
|
|
* - Entry Bus Bus equivalent:
|
|
* Wire Bus Bus
|
|
*/
|
|
if (sscanf(line, "Entry Wire Line%n", &n) == 0 && n) {
|
|
ctx->state = sch_wire;
|
|
obj->u.wire.fn = dwg_wire;
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "Entry Bus Bus%n", &n) == 0 && n) {
|
|
ctx->state = sch_wire;
|
|
obj->u.wire.fn = dwg_bus;
|
|
return 1;
|
|
}
|
|
|
|
/* EndSCHEMATC */
|
|
|
|
if (sscanf(line, "$EndSCHEMATC%n", &n) == 0 && n)
|
|
return 0;
|
|
break;
|
|
case sch_descr:
|
|
if (sscanf(line, "$EndDescr%n", &n) || !n)
|
|
return 1;
|
|
ctx->state = sch_basic;
|
|
return 1;
|
|
case sch_comp:
|
|
if (sscanf(line, "$EndComp%n", &n) == 0 && n) {
|
|
ctx->state = sch_basic;
|
|
submit_obj(ctx, sch_obj_comp);
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "L %ms", &s) == 1) {
|
|
obj->u.comp.comp = lib_find(s);
|
|
free(s);
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "U %u", &obj->u.comp.unit) == 1)
|
|
return 1;
|
|
if (sscanf(line, "P %d %d", &obj->x, &obj->y) == 2)
|
|
return 1;
|
|
if (parse_field(ctx, line))
|
|
return 1;
|
|
if (sscanf(line, "AR %n", &n) == 0 && n)
|
|
return 1; /* @@@ what is "AR" ? */
|
|
n = sscanf(line, " %d %d %d %d",
|
|
obj->u.comp.m + 1, obj->u.comp.m + 2,
|
|
obj->u.comp.m + 4, obj->u.comp.m + 5);
|
|
if (n == 3)
|
|
return 1;
|
|
if (n == 4) {
|
|
obj->u.comp.m[0] = obj->x;
|
|
obj->u.comp.m[3] = obj->y;
|
|
return 1;
|
|
}
|
|
break;
|
|
case sch_sheet:
|
|
if (sscanf(line, "$EndSheet%n", &n) == 0 && n) {
|
|
ctx->state = sch_basic;
|
|
submit_obj(ctx, sch_obj_sheet);
|
|
return 1;
|
|
}
|
|
if (sscanf(line, "S %d %d %u %u",
|
|
&obj->x, &obj->y, &obj->u.sheet.w, &obj->u.sheet.h) == 4)
|
|
return 1;
|
|
if (sscanf(line, "U %*x%n", &n) == 0 && n)
|
|
return 1;
|
|
if (parse_hsheet_field(ctx, line))
|
|
return 1;
|
|
break;
|
|
case sch_text:
|
|
ctx->state = sch_basic;
|
|
{
|
|
const char *from;
|
|
char *to;
|
|
|
|
s = alloc_size(strlen(line) + 1);
|
|
from = line;
|
|
to = s;
|
|
while (*from) {
|
|
if (from[0] != '\\' || from[1] != 'n') {
|
|
*to++ = *from++;
|
|
continue;
|
|
}
|
|
*to++ = '\n';
|
|
from += 2;
|
|
}
|
|
*to = 0;
|
|
obj->u.text.s = s;
|
|
submit_obj(ctx, sch_obj_text);
|
|
}
|
|
return 1;
|
|
case sch_wire:
|
|
if (sscanf(line, "%d %d %d %d", &obj->x, &obj->y,
|
|
&obj->u.wire.ex, &obj->u.wire.ey) != 4)
|
|
break;
|
|
submit_obj(ctx, sch_obj_wire);
|
|
ctx->state = sch_basic;
|
|
return 1;
|
|
default:
|
|
abort();
|
|
}
|
|
fprintf(stderr, "%u: cannot parse\n\"%s\"\n", ctx->lineno, line);
|
|
exit(1);
|
|
}
|
|
|
|
|
|
void sch_init(struct sch_ctx *ctx)
|
|
{
|
|
ctx->state = sch_descr;
|
|
ctx->objs = NULL;
|
|
ctx->lineno = 0;
|
|
}
|