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fped/dump.c
Werner Almesberger ad2c07f49c dump.c (order_vecs): don't trip over vectors with deferred resolution
This caused segfaults in code view and dumping with -T -T.
2015-01-07 19:56:25 -03:00

636 lines
13 KiB
C

/*
* dump.c - Dump objects in the native FPD format
*
* Written 2009-2012, 2014-2015 by Werner Almesberger
* Copyright 2009-2012, 2014-2015 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 <string.h>
#include <assert.h>
#include <sys/types.h>
#include "util.h"
#include "unparse.h"
#include "obj.h"
#include "gui_status.h"
#include "dump.h"
/* ----- order items ------------------------------------------------------- */
static void add_item(struct order **curr, struct vec *vec, struct obj *obj)
{
(*curr)->vec = vec;
(*curr)->obj = obj;
(*curr)++;
}
static int n_vec_refs(const struct vec *vec)
{
const struct vec *walk;
int n;
n = 0;
for (walk = vec->frame->vecs; walk; walk = walk->next)
if (walk->base == vec)
n++;
return n;
}
/*
* If "prev" is non-NULL, we're looking for objects that need to be put after
* the current vector (in "prev"). Only those objects need to be put there
* that have at least one base that isn't the frame's origin.
*
* We could also make an exception for manually named vectors, but we get
* better clustering without.
*/
static int need(const struct vec *base, const struct vec *prev)
{
if (!base)
return 0;
#if 0
if (base->name && *base->name != '_')
return 0;
#endif
if (prev)
return base == prev;
return 1;
}
/*
* If we need a vector that's defined later, we have to defer dumping the
* object.
*/
static int later(const struct vec *base, const struct vec *prev)
{
return base && !base->dumped;
#if 0
while (1) {
prev = prev->next;
if (!prev)
break;
if (base == prev)
return 1;
}
return 0;
#endif
}
static int may_put_obj_now(const struct obj *obj, const struct vec *prev)
{
int n, l;
n = need(obj->base, prev);
l = later(obj->base, prev);
switch (obj->type) {
case ot_frame:
break;
case ot_line:
n |= need(obj->u.line.other, prev);
l |= later(obj->u.line.other, prev);
break;
case ot_rect:
n |= need(obj->u.rect.other, prev);
l |= later(obj->u.rect.other, prev);
break;
case ot_pad:
n |= need(obj->u.pad.other, prev);
l |= later(obj->u.pad.other, prev);
break;
case ot_hole:
n |= need(obj->u.hole.other, prev);
l |= later(obj->u.hole.other, prev);
break;
case ot_arc:
n |= need(obj->u.arc.start, prev);
n |= need(obj->u.arc.end, prev);
l |= later(obj->u.arc.start, prev);
l |= later(obj->u.arc.end, prev);
break;
case ot_meas:
return 0;
default:
abort();
}
return n && !l;
}
static void put_obj(struct order **curr, struct obj *obj,
struct vec *prev)
{
if (obj->dumped)
return;
obj->dumped = 1;
add_item(curr, prev, obj);
}
/*
* Tricky logic ahead: when dumping a vector, we search for a vector that
* depends on that vector for ".". If we find one, we dump it immediately after
* this vector.
*/
static void recurse_vec(struct order **curr, struct vec *vec)
{
struct vec *next;
struct obj *obj;
vec->dumped = 1;
add_item(curr, vec, NULL);
for (obj = vec->frame->objs; obj; obj = obj->next)
if (may_put_obj_now(obj, vec))
put_obj(curr, obj, vec);
if (n_vec_refs(vec) == 1) {
for (next = vec->next; next->base != vec; next = next->next);
recurse_vec(curr, next);
}
}
static void order_vecs(struct order **curr, struct vec *vecs)
{
struct vec *vec;
for (vec = vecs; vec; vec = vec->next) {
const char *name = (const char *) vec->base;
if (!vec->base || *name || n_vec_refs(vec->base) != 1)
recurse_vec(curr, vec);
}
}
struct order *order_frame(const struct frame *frame)
{
struct order *order, *curr;
struct vec *vec;
struct obj *obj;
int n = 0;
for (vec = frame->vecs; vec; vec = vec->next)
n++;
for (obj = frame->objs; obj; obj = obj->next)
if (obj->type != ot_meas)
n++;
for (vec = frame->vecs; vec; vec = vec->next)
vec->dumped = 0;
for (obj = frame->objs; obj; obj = obj->next)
obj->dumped = 0;
order = alloc_size(sizeof(*order)*(n+1));
curr = order;
order_vecs(&curr, frame->vecs);
/* frames based on @ (anything else ?) */
for (obj = frame->objs; obj; obj = obj->next)
if (obj->type != ot_meas)
put_obj(&curr, obj, NULL);
assert(curr == order+n);
add_item(&curr, NULL, NULL);
return order;
}
/* ----- variables --------------------------------------------------------- */
static void dump_var(FILE *file, const struct table *table,
const char *indent)
{
char *s;
s = unparse(table->rows->values->expr);
fprintf(file, "%sset %s%s = %s\n\n", indent,
table->vars->key ? "?" : "", table->vars->name, s);
free(s);
}
static void dump_table(FILE *file, const struct table *table,
const char *indent)
{
const struct var *var;
const struct row *row;
const struct value *value;
char *s;
if (table->vars && !table->vars->next &&
table->rows && !table->rows->next) {
dump_var(file, table, indent);
return;
}
fprintf(file, "%stable\n%s {", indent, indent);
for (var = table->vars; var; var = var->next)
fprintf(file, "%s %s%s", var == table->vars ? "" : ",",
var->key ? "?" : "", var->name);
fprintf(file, " }\n");
for (row = table->rows; row; row = row->next) {
fprintf(file, "%s {", indent);
for (value = row->values; value; value = value->next) {
s = unparse(value->expr);
fprintf(file, "%s %s",
value == row->values? "" : ",", s);
free(s);
}
fprintf(file, " }\n");
}
fprintf(file, "\n");
}
static void dump_loop(FILE *file, const struct loop *loop, const char *indent)
{
char *from, *to;
from = unparse(loop->from.expr);
to = unparse(loop->to.expr);
fprintf(file, "%sloop %s = %s, %s\n\n",
indent, loop->var.name, from, to);
free(from);
free(to);
}
/* ----- vectors and objects ----------------------------------------------- */
static void generate_name(struct vec *base)
{
char tmp[10]; /* plenty */
const char *s;
struct vec *walk;
int n = 0;
while (1) {
sprintf(tmp, "__%d", n);
s = unique(tmp);
for (walk = base->frame->vecs; walk; walk = walk->next)
if (walk->name == s)
break;
if (!walk)
break;
n++;
}
base->name = s;
}
static const char *base_name(struct vec *base, const struct vec *next)
{
const char *name = (const char *) base;
if (!base)
return "@";
if (*name)
return name;
if (next && base->next == next)
return ".";
if (!base->name)
generate_name(base);
return base->name;
}
static const char *obj_base_name(struct vec *base, const struct vec *prev)
{
if (base && base == prev)
return ".";
return base_name(base, NULL);
}
char *print_obj(const struct obj *obj, const struct vec *prev)
{
const char *base, *s1, *s3;
char *s, *s2;
base = obj_base_name(obj->base, prev);
switch (obj->type) {
case ot_frame:
s = stralloc_printf("frame %s %s",
obj->u.frame.ref->name, base);
break;
case ot_line:
s1 = obj_base_name(obj->u.line.other, prev);
s2 = unparse(obj->u.line.width);
s = stralloc_printf("line %s %s %s", base, s1, s2);
free(s2);
break;
case ot_rect:
s1 = obj_base_name(obj->u.rect.other, prev);
s2 = unparse(obj->u.rect.width);
s = stralloc_printf("rect %s %s %s", base, s1, s2);
free(s2);
break;
case ot_pad:
s1 = obj_base_name(obj->u.pad.other, prev);
switch (obj->u.pad.type) {
case pt_normal:
s2 = "";
break;
case pt_bare:
s2 = " bare";
break;
case pt_trace:
s2 = " trace";
break;
case pt_paste:
s2 = " paste";
break;
case pt_mask:
s2 = " mask";
break;
default:
abort();
}
s = stralloc_printf("%spad \"%s\" %s %s%s",
obj->u.pad.rounded ? "r" : "",
obj->u.pad.name, base, s1, s2);
break;
case ot_hole:
s1 = obj_base_name(obj->u.hole.other, prev);
s = stralloc_printf("hole %s %s", base, s1);
break;
case ot_arc:
s1 = obj_base_name(obj->u.arc.start, prev);
s2 = unparse(obj->u.arc.width);
if (obj->u.arc.start == obj->u.arc.end) {
s = stralloc_printf("circ %s %s %s", base, s1, s2);
} else {
s3 = obj_base_name(obj->u.arc.end, prev);
s = stralloc_printf("arc %s %s %s %s",
base, s1, s3, s2);
}
free(s2);
break;
case ot_iprint:
s2 = unparse(obj->u.iprint.expr);
s = stralloc_printf("%%iprint %s", s2);
free(s2);
break;
default:
abort();
}
return s;
}
/* ----- print measurement ------------------------------------------------- */
static const char *meas_type_name[mt_n] = {
"meas", "measx", "measy",
"meas", "measx", "measy",
};
static char *print_meas_base(struct vec *base, const struct frame_qual *qual)
{
const char *name;
size_t n;
const struct frame_qual *walk;
char *s, *p;
name = base_name(base, NULL);
n = strlen(name)+1; /* vec\0 */
for (walk = qual; walk; walk = walk->next)
n += strlen(walk->frame->name)+1; /* frame/ */
if (base->frame != frames)
n += strlen(base->frame->name)+1; /* frame. */
s = p = alloc_size(n);
for (walk = qual; walk; walk = walk->next) {
n = strlen(walk->frame->name);
memcpy(p, walk->frame->name, n);
p[n] = '/';
p += n+1;
}
if (base->frame != frames) {
n = strlen(base->frame->name);
memcpy(p, base->frame->name, n);
p[n] = '.';
p += n+1;
}
strcpy(p, name);
return s;
}
char *print_meas(const struct obj *obj)
{
char *s, *t;
char *s1, *s2, *s3;
assert(obj->type == ot_meas);
s = stralloc_printf("%s ", meas_type_name[obj->u.meas.type]);
if (obj->u.meas.label) {
t = stralloc_printf("%s\"%s\" ", s, obj->u.meas.label);
free(s);
s = t;
}
s1 = print_meas_base(obj->base, obj->u.meas.low_qual);
s2 = stralloc_printf(" %s ",
obj->u.meas.type < 3 ? obj->u.meas.inverted ? "<-" : "->" :
obj->u.meas.inverted ? "<<" : ">>");
s3 = print_meas_base(obj->u.meas.high, obj->u.meas.high_qual);
t = stralloc_printf("%s%s%s%s", s, s1, s2, s3);
free(s);
free(s1);
free(s2);
free(s3);
s = t;
if (!obj->u.meas.offset)
return s;
s1 = unparse(obj->u.meas.offset);
t = stralloc_printf("%s %s", s, s1);
free(s);
free(s1);
return t;
}
/* ----- print vector ------------------------------------------------------ */
const char *print_label(struct vec *vec)
{
if (!vec->name)
generate_name(vec);
return vec->name;
}
char *print_vec(const struct vec *vec)
{
const char *base;
char *x, *y, *s;
base = base_name(vec->base, vec);
x = unparse(vec->x);
y = unparse(vec->y);
if (vec->name)
s = stralloc_printf("vec %s(%s, %s)", base, x, y);
else
s = stralloc_printf("vec %s(%s, %s)", base, x, y);
free(x);
free(y);
return s;
}
/* ----- frames ------------------------------------------------------------ */
static void dump_frame(FILE *file, struct frame *frame, const char *indent)
{
const struct table *table;
const struct loop *loop;
struct obj *obj;
struct order *order;
const struct order *item;
char *s;
const char *s1;
if (frame->dumped)
return;
frame->dumped = 1;
for (obj = frame->objs; obj; obj = obj->next)
if (obj->type == ot_frame)
dump_frame(file, obj->u.frame.ref, "\t");
if (frame->name)
fprintf(file, "frame %s {\n", frame->name);
for (table = frame->tables; table; table = table->next)
dump_table(file, table, indent);
for (loop = frame->loops; loop; loop = loop->next)
dump_loop(file, loop, indent);
order = order_frame(frame);
for (item = order; item->vec || item->obj; item++) {
if (item->obj) {
fprintf(file, "%s", indent);
if (item->obj->name)
fprintf(file, "%s: ", item->obj->name);
s = print_obj(item->obj, item->vec);
fprintf(file, "%s\n", s);
} else {
s1 = print_label(item->vec);
s = print_vec(item->vec);
fprintf(file, "%s%s: %s\n", indent, s1, s);
}
free(s);
}
free(order);
for (obj = frame->objs; obj; obj = obj->next) {
if (obj->dumped)
continue;
s = print_meas(obj);
fprintf(file, "%s%s\n", indent, s);
free(s);
}
if (frame->name)
fprintf(file, "}\n\n");
}
/* ----- file -------------------------------------------------------------- */
static void dump_unit(FILE *file)
{
switch (curr_unit) {
case curr_unit_mm:
fprintf(file, "unit mm\n");
break;
case curr_unit_mil:
fprintf(file, "unit mil\n");
break;
case curr_unit_auto:
fprintf(file, "unit auto\n");
break;
default:
abort();
}
}
static void dump_allow(FILE *file)
{
switch (allow_overlap) {
case ao_none:
break;
case ao_touch:
fprintf(file, "allow touch\n");
break;
case ao_any:
fprintf(file, "allow overlap\n");
break;
default:
abort();
}
if (!holes_linked)
fprintf(file, "allow holes\n");
}
static void reverse_frames(FILE *file, struct frame *last)
{
if (last) {
reverse_frames(file, last->next);
dump_frame(file, last, "\t");
}
}
int dump(FILE *file, const char *one)
{
struct frame *frame;
assert(!one);
fprintf(file, "%s\n", MACHINE_GENERATED);
for (frame = frames; frame; frame = frame->next)
frame->dumped = 0;
reverse_frames(file, frames->next);
fprintf(file, "package \"%s\"\n", pkg_name);
dump_unit(file);
dump_allow(file);
fprintf(file, "\n");
dump_frame(file, frames, "");
fflush(file);
return !ferror(file);
}