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sch2fig/lib.c: split into lib-parse.c and lib-render.c

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This commit is contained in:
Werner Almesberger 2016-07-31 14:36:42 -03:00
parent 49a32f38e2
commit 3e18e7a72e
6 changed files with 338 additions and 319 deletions
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2
sch2fig/Makefile
View File

@ -11,7 +11,7 @@
#
NAME = sch2fig
OBJS = main.o sch-parse.o sch-render.o lib.o \
OBJS = main.o sch-parse.o sch-render.o lib-parse.o lib-render.o \
style.o fig.o cairo.o gfx.o dwg.o text.o misc.o
CFLAGS = -g -O -Wall -Wextra -Wno-unused-parameter -Wshadow \

265
sch2fig/lib-parse.c Normal file
View File

@ -0,0 +1,265 @@
/*
* lib.c - Parse Eeschema .lib 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.
*/
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include "util.h"
#include "text.h"
#include "lib.h"
struct comp *comps = NULL;
static struct comp *curr_comp; /* current component */
static struct comp **next_comp = &comps;
static struct lib_obj **next_obj;
/* ----- Text -------------------------------------------------------------- */
static enum text_style decode_style(const char *s)
{
if (!strcmp(s, "Normal"))
return text_normal;
assert(0);
}
/* ----- Polygons ---------------------------------------------------------- */
static bool parse_poly(struct lib_poly *poly, const char *line, int points)
{
int i, n;
poly->points = points;
poly->x = alloc_size(sizeof(int) * points);
poly->y = alloc_size(sizeof(int) * points);
for (i = 0; i != points; i++) {
if (sscanf(line, "%d %d %n",
poly->x + i, poly->y + i, &n) != 2)
return 0;
line += n;
}
if (sscanf(line, "%c", &poly->fill) != 1)
return 0;
return 1;
}
/* ----- Definitions ------------------------------------------------------- */
static bool parse_def(const char *line)
{
char *s;
char draw_num, draw_name;
unsigned name_offset;
unsigned units;
if (sscanf(line, "DEF %ms %*s %*d %u %c %c %u",
&s, &name_offset, &draw_num, &draw_name, &units) != 5)
return 0;
curr_comp = alloc_type(struct comp);
if (*s == '~')
s++;
curr_comp->name = s;
curr_comp->units = units;
curr_comp->visible = 0;
curr_comp->show_pin_name = draw_name == 'Y';
curr_comp->show_pin_num = draw_num == 'Y';
curr_comp->name_offset = name_offset;
curr_comp->objs = NULL;
next_obj = &curr_comp->objs;
curr_comp->next = NULL;
*next_comp = curr_comp;
next_comp = &curr_comp->next;
return 1;
}
/* ----- Arcs -------------------------------------------------------------- */
static bool parse_arc(struct lib_obj *obj, const char *line)
{
struct lib_arc *arc = &obj->u.arc;
int a1, a2;
if (sscanf(line, "A %d %d %d %d %d %u %u %u %c",
&arc->x, &arc->y, &arc->r, &a1, &a2, &obj->unit, &obj->convert,
&arc->thick, &arc->fill) != 9)
return 0;
/*
* KiCad arcs can be clockwise or counter-clockwise. They must always
* be smaller than 180 degrees.
*/
while (a1 < 0)
a1 += 3600;
while (a2 < 0)
a2 += 3600;
a1 %= 3600;
a2 %= 3600;
if (a2 < a1)
a2 += 3600;
assert(a2 - a1 != 1800);
if (a2 - a1 > 1800)
swap(a1, a2);
arc->start_a = (a1 % 3600) / 10;
arc->end_a = (a2 % 3600) / 10;
return 1;
}
/* ----- Library parser ---------------------------------------------------- */
bool lib_parse(struct lib_ctx *ctx, const char *line)
{
int n = 0;
unsigned points;
struct lib_obj *obj;
char *style;
unsigned zero1, zero2;
char vis;
ctx->lineno++;
switch (ctx->state) {
case lib_skip:
if (parse_def(line)) {
ctx->state = lib_def;
return 1;
}
return 1;
case lib_def:
if (sscanf(line, "DRAW%n", &n) == 0 && n) {
ctx->state = lib_draw;
return 1;
}
if (sscanf(line, "F%d \"\" %*d %*d %*d %*c %c", &n, &vis) == 2
|| sscanf(line, "F%d \"%*[^\"]\" %*d %*d %*d %*c %c",
&n, &vis) == 2) {
if (vis == 'V')
curr_comp->visible |= 1 << n;
return 1;
}
/* @@@ explicitly ignore FPLIST */
return 1;
case lib_draw:
if (sscanf(line, "ENDDRAW%n", &n) == 0 && n) {
ctx->state = lib_skip;
return 1;
}
obj = alloc_type(struct lib_obj);
obj->next = NULL;
*next_obj = obj;
next_obj = &obj->next;
if (sscanf(line, "P %u %u %u %u %n",
&points, &obj->unit, &obj->convert, &obj->u.poly.thick,
&n) == 4) {
obj->type = lib_obj_poly;
if (parse_poly(&obj->u.poly, line + n, points))
return 1;
break;
}
if (sscanf(line, "S %d %d %d %d %u %u %d %c",
&obj->u.rect.sx, &obj->u.rect.sy, &obj->u.rect.ex,
&obj->u.rect.ey, &obj->unit, &obj->convert,
&obj->u.rect.thick, &obj->u.rect.fill) == 8) {
obj->type = lib_obj_rect;
return 1;
}
if (sscanf(line, "C %d %d %d %u %u %d %c",
&obj->u.circ.x, &obj->u.circ.y, &obj->u.circ.r,
&obj->unit, &obj->convert, &obj->u.circ.thick,
&obj->u.circ.fill) == 7) {
obj->type = lib_obj_circ;
return 1;
}
if (parse_arc(obj, line)) {
obj->type = lib_obj_arc;
return 1;
}
n = sscanf(line,
"T %d %d %d %d %u %u %u \"%m[^\"]\" %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) {
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);
while (n == 12) {
char *tilde;
tilde = strchr(obj->u.text.s, '~');
if (!tilde)
break;
*tilde = ' ';
}
}
/*
* zero2 seems to be the font style: 0 = normal, 1 = bold ?
*/
if (n == 12) {
if (zero1) {
fprintf(stderr, "%u: only understand 0 x x\n"
"\"%s\"\n", ctx->lineno, line);
exit(1);
}
obj->u.text.style = decode_style(style);
obj->type = lib_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 = lib_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;
}

317
sch2fig/lib.c → sch2fig/lib-render.c
View File

@ -1,5 +1,5 @@
/*
* lib.c - Parse Eeschema .lib file
* lib.c - Render component from library
*
* Written 2016 by Werner Almesberger
* Copyright 2016 by Werner Almesberger
@ -13,8 +13,6 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include "util.h"
@ -26,82 +24,9 @@
#include "lib.h"
enum text_style {
text_normal,
};
struct lib_obj {
enum lib_obj_type {
lib_obj_poly,
lib_obj_rect,
lib_obj_circ,
lib_obj_arc,
lib_obj_text,
lib_obj_pin,
} type;
unsigned unit;
unsigned convert;
union {
struct lib_poly {
int thick;
char fill;
int points;
int *x;
int *y;
} poly;
struct lib_rect {
int thick;
char fill;
int sx, sy;
int ex, ey;
} rect;
struct lib_circ {
int x, y;
int r;
int thick;
char fill;
} circ;
struct lib_arc {
int x, y;
int r;
int start_a, end_a;
int thick;
char fill;
} arc;
struct lib_text {
int orient;
int x, y;
int dim;
char *s;
enum text_style style;
char hor_align;
char vert_align;
} text;
struct lib_pin {
char *name;
char *number;
int x, y;
int length;
char orient;
int number_size;
int name_size;
char etype;
// @@@ shape
} pin;
} u;
struct lib_obj *next;
};
/* ----- Drawing ----------------------------------------------------------- */
static struct comp *comps = NULL;
static struct comp *curr_comp; /* current component */
static struct comp **next_comp = &comps;
static struct lib_obj **next_obj;
static void draw_poly(const struct lib_poly *poly, const int m[6])
{
int n = poly->points;
@ -457,7 +382,7 @@ bool lib_field_visible(const struct comp *comp, int n)
}
void lib_exec(const struct comp *comp, unsigned unit, const int m[4])
void lib_render(const struct comp *comp, unsigned unit, const int m[4])
{
const struct lib_obj *obj;
@ -469,241 +394,3 @@ void lib_exec(const struct comp *comp, unsigned unit, const int m[4])
draw(comp, obj, m);
}
}
/* ----- Text -------------------------------------------------------------- */
static enum text_style decode_style(const char *s)
{
if (!strcmp(s, "Normal"))
return text_normal;
assert(0);
}
/* ----- Polygons ---------------------------------------------------------- */
static bool parse_poly(struct lib_poly *poly, const char *line, int points)
{
int i, n;
poly->points = points;
poly->x = alloc_size(sizeof(int) * points);
poly->y = alloc_size(sizeof(int) * points);
for (i = 0; i != points; i++) {
if (sscanf(line, "%d %d %n",
poly->x + i, poly->y + i, &n) != 2)
return 0;
line += n;
}
if (sscanf(line, "%c", &poly->fill) != 1)
return 0;
return 1;
}
/* ----- Definitions ------------------------------------------------------- */
static bool parse_def(const char *line)
{
char *s;
char draw_num, draw_name;
unsigned name_offset;
unsigned units;
if (sscanf(line, "DEF %ms %*s %*d %u %c %c %u",
&s, &name_offset, &draw_num, &draw_name, &units) != 5)
return 0;
curr_comp = alloc_type(struct comp);
if (*s == '~')
s++;
curr_comp->name = s;
curr_comp->units = units;
curr_comp->visible = 0;
curr_comp->show_pin_name = draw_name == 'Y';
curr_comp->show_pin_num = draw_num == 'Y';
curr_comp->name_offset = name_offset;
curr_comp->objs = NULL;
next_obj = &curr_comp->objs;
curr_comp->next = NULL;
*next_comp = curr_comp;
next_comp = &curr_comp->next;
return 1;
}
/* ----- Arcs -------------------------------------------------------------- */
static bool parse_arc(struct lib_obj *obj, const char *line)
{
struct lib_arc *arc = &obj->u.arc;
int a1, a2;
if (sscanf(line, "A %d %d %d %d %d %u %u %u %c",
&arc->x, &arc->y, &arc->r, &a1, &a2, &obj->unit, &obj->convert,
&arc->thick, &arc->fill) != 9)
return 0;
/*
* KiCad arcs can be clockwise or counter-clockwise. They must always
* be smaller than 180 degrees.
*/
while (a1 < 0)
a1 += 3600;
while (a2 < 0)
a2 += 3600;
a1 %= 3600;
a2 %= 3600;
if (a2 < a1)
a2 += 3600;
assert(a2 - a1 != 1800);
if (a2 - a1 > 1800)
swap(a1, a2);
arc->start_a = (a1 % 3600) / 10;
arc->end_a = (a2 % 3600) / 10;
return 1;
}
/* ----- Library parser ---------------------------------------------------- */
bool lib_parse(struct lib_ctx *ctx, const char *line)
{
int n = 0;
unsigned points;
struct lib_obj *obj;
char *style;
unsigned zero1, zero2;
char vis;
ctx->lineno++;
switch (ctx->state) {
case lib_skip:
if (parse_def(line)) {
ctx->state = lib_def;
return 1;
}
return 1;
case lib_def:
if (sscanf(line, "DRAW%n", &n) == 0 && n) {
ctx->state = lib_draw;
return 1;
}
if (sscanf(line, "F%d \"\" %*d %*d %*d %*c %c", &n, &vis) == 2
|| sscanf(line, "F%d \"%*[^\"]\" %*d %*d %*d %*c %c",
&n, &vis) == 2) {
if (vis == 'V')
curr_comp->visible |= 1 << n;
return 1;
}
/* @@@ explicitly ignore FPLIST */
return 1;
case lib_draw:
if (sscanf(line, "ENDDRAW%n", &n) == 0 && n) {
ctx->state = lib_skip;
return 1;
}
obj = alloc_type(struct lib_obj);
obj->next = NULL;
*next_obj = obj;
next_obj = &obj->next;
if (sscanf(line, "P %u %u %u %u %n",
&points, &obj->unit, &obj->convert, &obj->u.poly.thick,
&n) == 4) {
obj->type = lib_obj_poly;
if (parse_poly(&obj->u.poly, line + n, points))
return 1;
break;
}
if (sscanf(line, "S %d %d %d %d %u %u %d %c",
&obj->u.rect.sx, &obj->u.rect.sy, &obj->u.rect.ex,
&obj->u.rect.ey, &obj->unit, &obj->convert,
&obj->u.rect.thick, &obj->u.rect.fill) == 8) {
obj->type = lib_obj_rect;
return 1;
}
if (sscanf(line, "C %d %d %d %u %u %d %c",
&obj->u.circ.x, &obj->u.circ.y, &obj->u.circ.r,
&obj->unit, &obj->convert, &obj->u.circ.thick,
&obj->u.circ.fill) == 7) {
obj->type = lib_obj_circ;
return 1;
}
if (parse_arc(obj, line)) {
obj->type = lib_obj_arc;
return 1;
}
n = sscanf(line,
"T %d %d %d %d %u %u %u \"%m[^\"]\" %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) {
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);
while (n == 12) {
char *tilde;
tilde = strchr(obj->u.text.s, '~');
if (!tilde)
break;
*tilde = ' ';
}
}
/*
* zero2 seems to be the font style: 0 = normal, 1 = bold ?
*/
if (n == 12) {
if (zero1) {
fprintf(stderr, "%u: only understand 0 x x\n"
"\"%s\"\n", ctx->lineno, line);
exit(1);
}
obj->u.text.style = decode_style(style);
obj->type = lib_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 = lib_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;
}

67
sch2fig/lib.h
View File

@ -28,7 +28,67 @@ struct lib_ctx {
unsigned lineno;
};
struct lib_obj;
struct lib_obj {
enum lib_obj_type {
lib_obj_poly,
lib_obj_rect,
lib_obj_circ,
lib_obj_arc,
lib_obj_text,
lib_obj_pin,
} type;
unsigned unit;
unsigned convert;
union {
struct lib_poly {
int thick;
char fill;
int points;
int *x;
int *y;
} poly;
struct lib_rect {
int thick;
char fill;
int sx, sy;
int ex, ey;
} rect;
struct lib_circ {
int x, y;
int r;
int thick;
char fill;
} circ;
struct lib_arc {
int x, y;
int r;
int start_a, end_a;
int thick;
char fill;
} arc;
struct lib_text {
int orient;
int x, y;
int dim;
char *s;
enum text_style style;
char hor_align;
char vert_align;
} text;
struct lib_pin {
char *name;
char *number;
int x, y;
int length;
char orient;
int number_size;
int name_size;
char etype;
// @@@ shape
} pin;
} u;
struct lib_obj *next;
};
struct comp {
const char *name;
@ -44,9 +104,12 @@ struct comp {
};
extern struct comp *comps;
const struct comp *lib_find(const char *name);
bool lib_field_visible(const struct comp *comp, int n);
void lib_exec(const struct comp *comp, unsigned unit, const int m[6]);
void lib_render(const struct comp *comp, unsigned unit, const int m[6]);
bool lib_parse(struct lib_ctx *ctx, const char *line);
void lib_init(struct lib_ctx *ctx);

2
sch2fig/sch-render.c
View File

@ -161,7 +161,7 @@ void sch_render(const struct sch_ctx *ctx)
const struct sch_comp *comp = &obj->u.comp;
const struct comp_field *field;
lib_exec(comp->comp, comp->unit, comp->m);
lib_render(comp->comp, comp->unit, comp->m);
for (field = comp->fields; field;
field = field->next)
dump_field(field, comp->m);

4
sch2fig/text.h
View File

@ -23,6 +23,10 @@ enum text_align {
text_max = 2, // right or top
};
enum text_style {
text_normal,
};
struct text {
const char *s;
int size;