1 |
zoff99 |
2 |
/**
|
2 |
|
|
* Navit, a modular navigation system.
|
3 |
|
|
* Copyright (C) 2005-2008 Navit Team
|
4 |
|
|
*
|
5 |
|
|
* This program is free software; you can redistribute it and/or
|
6 |
|
|
* modify it under the terms of the GNU General Public License
|
7 |
|
|
* version 2 as published by the Free Software Foundation.
|
8 |
|
|
*
|
9 |
|
|
* This program is distributed in the hope that it will be useful,
|
10 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
11 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
12 |
|
|
* GNU General Public License for more details.
|
13 |
|
|
*
|
14 |
|
|
* You should have received a copy of the GNU General Public License
|
15 |
|
|
* along with this program; if not, write to the
|
16 |
|
|
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
17 |
|
|
* Boston, MA 02110-1301, USA.
|
18 |
|
|
*/
|
19 |
|
|
|
20 |
|
|
#include <stdio.h>
|
21 |
|
|
#include <string.h>
|
22 |
|
|
#include "debug.h"
|
23 |
|
|
#include "mg.h"
|
24 |
|
|
|
25 |
|
|
|
26 |
|
|
int block_lin_count,block_idx_count,block_active_count,block_mem,block_active_mem;
|
27 |
|
|
|
28 |
|
|
struct block_index_item {
|
29 |
|
|
/*unsigned int blocknum;
|
30 |
|
|
unsigned int blocks;*/
|
31 |
|
|
unsigned char p[8];
|
32 |
|
|
};
|
33 |
|
|
static inline unsigned int block_index_item_get_blocknum(struct block_index_item * blk) { unsigned char *p = blk->p; return get_u32(&p); }
|
34 |
|
|
static inline unsigned int block_index_item_get_blocks(struct block_index_item * blk) { unsigned char *p = blk->p+4; return get_u32(&p); }
|
35 |
|
|
|
36 |
|
|
struct block_index {
|
37 |
|
|
/* unsigned int blocks;
|
38 |
|
|
unsigned int size;
|
39 |
|
|
unsigned int next;
|
40 |
|
|
struct block_index_item list[0];*/
|
41 |
|
|
unsigned char p[12];
|
42 |
|
|
};
|
43 |
|
|
static inline unsigned int block_index_get_blocks(struct block_index * blk) { unsigned char *p = blk->p; return get_u32(&p); }
|
44 |
|
|
static inline unsigned int block_index_get_size(struct block_index * blk) { unsigned char *p = blk->p+4; return get_u32(&p); }
|
45 |
|
|
static inline unsigned int block_index_get_next(struct block_index * blk) { unsigned char *p = blk->p+8; return get_u32(&p); }
|
46 |
|
|
static inline struct block_index_item * block_index_get_list(struct block_index * blk) { return (struct block_index_item *)(blk->p+12); }
|
47 |
|
|
|
48 |
|
|
static struct block *
|
49 |
|
|
block_get(unsigned char **p)
|
50 |
|
|
{
|
51 |
|
|
struct block *ret=(struct block *)(*p);
|
52 |
|
|
*p += sizeof(*ret);
|
53 |
|
|
return ret;
|
54 |
|
|
}
|
55 |
|
|
|
56 |
|
|
|
57 |
|
|
static struct block *
|
58 |
|
|
block_get_byid(struct file *file, int id, unsigned char **p_ret)
|
59 |
|
|
{
|
60 |
|
|
struct block_index *blk_idx;
|
61 |
|
|
int blk_num,max;
|
62 |
|
|
|
63 |
|
|
|
64 |
|
|
blk_idx=(struct block_index *)(file->begin+0x1000);
|
65 |
|
|
max=(block_index_get_size(blk_idx)-sizeof(struct block_index))/sizeof(struct block_index_item);
|
66 |
|
|
block_mem+=24;
|
67 |
|
|
while (id >= max) {
|
68 |
|
|
blk_idx=(struct block_index *)(file->begin+block_index_get_next(blk_idx)*512);
|
69 |
|
|
id-=max;
|
70 |
|
|
}
|
71 |
|
|
blk_num=block_index_item_get_blocknum(&block_index_get_list(blk_idx)[id]);
|
72 |
|
|
|
73 |
|
|
*p_ret=file->begin+blk_num*512;
|
74 |
|
|
return block_get(p_ret);
|
75 |
|
|
}
|
76 |
|
|
|
77 |
|
|
int
|
78 |
|
|
block_get_byindex(struct file *file, int idx, struct block_priv *blk)
|
79 |
|
|
{
|
80 |
|
|
dbg(1,"idx=%d\n", idx);
|
81 |
|
|
blk->b=block_get_byid(file, idx, &blk->p);
|
82 |
|
|
blk->block_start=(unsigned char *)(blk->b);
|
83 |
|
|
blk->p_start=blk->p;
|
84 |
|
|
blk->end=blk->block_start+block_get_size(blk->b);
|
85 |
|
|
|
86 |
|
|
return 1;
|
87 |
|
|
}
|
88 |
|
|
|
89 |
|
|
static void
|
90 |
|
|
block_setup_tags(struct map_rect_priv *mr)
|
91 |
|
|
{
|
92 |
|
|
int len;
|
93 |
|
|
unsigned char *p,*t;
|
94 |
|
|
char *str;
|
95 |
|
|
|
96 |
|
|
mr->b.binarytree=0;
|
97 |
|
|
|
98 |
|
|
p=mr->file->begin+0x0c;
|
99 |
|
|
while (*p) {
|
100 |
|
|
str=get_string(&p);
|
101 |
|
|
len=get_u32_unal(&p);
|
102 |
|
|
t=p;
|
103 |
|
|
/* printf("String '%s' len %d\n", str, len); */
|
104 |
|
|
if (! strcmp(str,"FirstBatBlock")) {
|
105 |
|
|
/* printf("%ld\n", get_u32_unal(&t)); */
|
106 |
|
|
} else if (! strcmp(str,"MaxBlockSize")) {
|
107 |
|
|
/* printf("%ld\n", get_u32_unal(&t)); */
|
108 |
|
|
} else if (! strcmp(str,"FREE_BLOCK_LIST")) {
|
109 |
|
|
/* printf("%ld\n", get_u32_unal(&t)); */
|
110 |
|
|
} else if (! strcmp(str,"TotalRect")) {
|
111 |
|
|
mr->b.b_rect.lu.x=get_u32_unal(&t);
|
112 |
|
|
mr->b.b_rect.lu.y=get_u32_unal(&t);
|
113 |
|
|
mr->b.b_rect.rl.x=get_u32_unal(&t);
|
114 |
|
|
mr->b.b_rect.rl.y=get_u32_unal(&t);
|
115 |
|
|
/* printf("0x%x,0x%x-0x%x,0x%x\n", mr->b.b_rect.lu.x, mr->b.b_rect.lu.y, mr->b.b_rect.rl.x, mr->b.b_rect.rl.y); */
|
116 |
|
|
} else if (! strcmp(str,"Version")) {
|
117 |
|
|
/* printf("0x%lx\n", get_u32_unal(&t)); */
|
118 |
|
|
} else if (! strcmp(str,"Categories")) {
|
119 |
|
|
/* printf("0x%x\n", get_u16(&t)); */
|
120 |
|
|
} else if (! strcmp(str,"binaryTree")) {
|
121 |
|
|
mr->b.binarytree=get_u32_unal(&t);
|
122 |
|
|
/* printf("%d\n", mr->b.binarytree); */
|
123 |
|
|
} else if (! strcmp(str,"CategorySets")) {
|
124 |
|
|
/* printf("0x%x\n", get_u16(&t)); */
|
125 |
|
|
} else if (! strcmp(str,"Kommentar")) {
|
126 |
|
|
/* printf("%s\n", get_string(&t)); */
|
127 |
|
|
}
|
128 |
|
|
p+=len;
|
129 |
|
|
}
|
130 |
|
|
}
|
131 |
|
|
|
132 |
|
|
#if 0
|
133 |
|
|
static void
|
134 |
|
|
block_rect_print(struct coord_rect *r)
|
135 |
|
|
{
|
136 |
|
|
printf ("0x%x,0x%x-0x%x,0x%x (0x%x,0x%x)", r->lu.x, r->lu.y, r->rl.x, r->rl.y, r->lu.x/2+r->rl.x/2,r->lu.y/2+r->rl.y/2);
|
137 |
|
|
}
|
138 |
|
|
#endif
|
139 |
|
|
|
140 |
|
|
static void
|
141 |
|
|
block_rect_same(struct coord_rect *r1, struct coord_rect *r2)
|
142 |
|
|
{
|
143 |
|
|
dbg_assert(r1->lu.x==r2->lu.x);
|
144 |
|
|
dbg_assert(r1->lu.y==r2->lu.y);
|
145 |
|
|
dbg_assert(r1->rl.x==r2->rl.x);
|
146 |
|
|
dbg_assert(r1->rl.y==r2->rl.y);
|
147 |
|
|
}
|
148 |
|
|
|
149 |
|
|
int
|
150 |
|
|
block_init(struct map_rect_priv *mr)
|
151 |
|
|
{
|
152 |
|
|
mr->b.block_num=-1;
|
153 |
|
|
mr->b.bt.b=NULL;
|
154 |
|
|
mr->b.bt.next=0;
|
155 |
|
|
block_setup_tags(mr);
|
156 |
|
|
if (mr->b.binarytree) {
|
157 |
|
|
mr->b.bt.next=mr->b.binarytree;
|
158 |
|
|
mr->b.bt.p=NULL;
|
159 |
|
|
mr->b.bt.block_count=0;
|
160 |
|
|
}
|
161 |
|
|
if (mr->cur_sel && !coord_rect_overlap(&mr->cur_sel->u.c_rect, &mr->b.b_rect))
|
162 |
|
|
return 0;
|
163 |
|
|
return block_next(mr);
|
164 |
|
|
}
|
165 |
|
|
|
166 |
|
|
|
167 |
|
|
int
|
168 |
|
|
block_next_lin(struct map_rect_priv *mr)
|
169 |
|
|
{
|
170 |
|
|
struct coord_rect r;
|
171 |
|
|
for (;;) {
|
172 |
|
|
block_lin_count++;
|
173 |
|
|
block_mem+=sizeof(struct block *);
|
174 |
|
|
mr->b.block_num++;
|
175 |
|
|
if (! mr->b.block_num)
|
176 |
|
|
mr->b.p=mr->file->begin+0x2000;
|
177 |
|
|
else
|
178 |
|
|
mr->b.p=mr->b.block_start+block_get_blocks(mr->b.b)*512;
|
179 |
|
|
if (mr->b.p >= mr->file->end) {
|
180 |
|
|
dbg(1,"end of blocks %p vs %p\n", mr->b.p, mr->file->end);
|
181 |
|
|
return 0;
|
182 |
|
|
}
|
183 |
|
|
mr->b.block_start=mr->b.p;
|
184 |
|
|
mr->b.b=block_get(&mr->b.p);
|
185 |
|
|
mr->b.p_start=mr->b.p;
|
186 |
|
|
mr->b.end=mr->b.block_start+block_get_size(mr->b.b);
|
187 |
|
|
if (block_get_count(mr->b.b) == -1) {
|
188 |
|
|
dbg(1,"empty blocks\n");
|
189 |
|
|
return 0;
|
190 |
|
|
}
|
191 |
|
|
block_get_r(mr->b.b, &r);
|
192 |
|
|
if (!mr->cur_sel || coord_rect_overlap(&mr->cur_sel->u.c_rect, &r)) {
|
193 |
|
|
block_active_count++;
|
194 |
|
|
block_active_mem+=block_get_blocks(mr->b.b)*512-sizeof(struct block *);
|
195 |
|
|
dbg(1,"block ok\n");
|
196 |
|
|
return 1;
|
197 |
|
|
}
|
198 |
|
|
dbg(2,"block not in cur_sel\n");
|
199 |
|
|
}
|
200 |
|
|
}
|
201 |
|
|
|
202 |
|
|
int
|
203 |
|
|
block_next(struct map_rect_priv *mr)
|
204 |
|
|
{
|
205 |
|
|
int blk_num,coord,r_h,r_w;
|
206 |
|
|
struct block_bt_priv *bt=&mr->b.bt;
|
207 |
|
|
struct coord_rect r;
|
208 |
|
|
|
209 |
|
|
if (!mr->b.binarytree || ! mr->cur_sel)
|
210 |
|
|
return block_next_lin(mr);
|
211 |
|
|
for (;;) {
|
212 |
|
|
if (! bt->p) {
|
213 |
|
|
dbg(1,"block 0x%x\n", bt->next);
|
214 |
|
|
if (bt->next == -1)
|
215 |
|
|
return 0;
|
216 |
|
|
bt->b=block_get_byid(mr->file, bt->next, &bt->p);
|
217 |
|
|
bt->end=(unsigned char *)mr->b.bt.b+block_get_size(mr->b.bt.b);
|
218 |
|
|
bt->next=block_get_next(bt->b);
|
219 |
|
|
bt->order=0;
|
220 |
|
|
dbg(1,"size 0x%x next 0x%x\n", block_get_size(bt->b), block_get_next(bt->b));
|
221 |
|
|
if (! mr->b.bt.block_count) {
|
222 |
|
|
#if 0
|
223 |
|
|
if (debug) {
|
224 |
|
|
printf("idx rect ");
|
225 |
|
|
block_rect_print(&mr->b.bt.b->r);
|
226 |
|
|
}
|
227 |
|
|
#endif
|
228 |
|
|
block_get_r(bt->b, &bt->r);
|
229 |
|
|
bt->r_curr=bt->r;
|
230 |
|
|
coord=get_u32(&mr->b.bt.p);
|
231 |
|
|
} else {
|
232 |
|
|
bt->p=(unsigned char *)bt->b+0xc;
|
233 |
|
|
}
|
234 |
|
|
bt->block_count++;
|
235 |
|
|
}
|
236 |
|
|
while (mr->b.bt.p < mr->b.bt.end) {
|
237 |
|
|
block_idx_count++;
|
238 |
|
|
blk_num=get_u32(&mr->b.bt.p);
|
239 |
|
|
coord=get_u32(&mr->b.bt.p);
|
240 |
|
|
block_mem+=8;
|
241 |
|
|
dbg(1,"%p vs %p coord 0x%x ", mr->b.bt.end, mr->b.bt.p, coord);
|
242 |
|
|
dbg(1,"block 0x%x", blk_num);
|
243 |
|
|
|
244 |
|
|
r_w=bt->r_curr.rl.x-bt->r_curr.lu.x;
|
245 |
|
|
r_h=bt->r_curr.lu.y-bt->r_curr.rl.y;
|
246 |
|
|
#if 0
|
247 |
|
|
if (debug) {
|
248 |
|
|
printf(" rect1 ");
|
249 |
|
|
block_rect_print(&bt->r_curr);
|
250 |
|
|
printf(" %dx%d", r_w, r_h);
|
251 |
|
|
}
|
252 |
|
|
#endif
|
253 |
|
|
mr->b.b=NULL;
|
254 |
|
|
if (blk_num != -1) {
|
255 |
|
|
block_mem+=8;
|
256 |
|
|
if (coord_rect_overlap(&mr->cur_sel->u.c_rect, &bt->r_curr)) {
|
257 |
|
|
mr->b.b=block_get_byid(mr->file, blk_num, &mr->b.p);
|
258 |
|
|
mr->b.block_num=blk_num;
|
259 |
|
|
dbg_assert(mr->b.b != NULL);
|
260 |
|
|
mr->b.block_start=(unsigned char *)(mr->b.b);
|
261 |
|
|
mr->b.p_start=mr->b.p;
|
262 |
|
|
mr->b.end=mr->b.block_start+block_get_size(mr->b.b);
|
263 |
|
|
block_get_r(mr->b.b, &r);
|
264 |
|
|
block_rect_same(&r, &bt->r_curr);
|
265 |
|
|
}
|
266 |
|
|
}
|
267 |
|
|
if (coord != -1) {
|
268 |
|
|
bt->stack[bt->stackp]=bt->r_curr;
|
269 |
|
|
if (r_w > r_h) {
|
270 |
|
|
bt->r_curr.rl.x=coord;
|
271 |
|
|
bt->stack[bt->stackp].lu.x=coord+1;
|
272 |
|
|
} else {
|
273 |
|
|
bt->r_curr.lu.y=coord;
|
274 |
|
|
bt->stack[bt->stackp].rl.y=coord+1;
|
275 |
|
|
}
|
276 |
|
|
bt->stackp++;
|
277 |
|
|
dbg_assert(bt->stackp < BT_STACK_SIZE);
|
278 |
|
|
} else {
|
279 |
|
|
if (bt->stackp) {
|
280 |
|
|
bt->stackp--;
|
281 |
|
|
bt->r_curr=bt->stack[bt->stackp];
|
282 |
|
|
} else {
|
283 |
|
|
bt->r_curr=bt->r;
|
284 |
|
|
bt->order++;
|
285 |
|
|
if (bt->order > 100)
|
286 |
|
|
return 0;
|
287 |
|
|
}
|
288 |
|
|
}
|
289 |
|
|
if (mr->b.b) {
|
290 |
|
|
block_active_count++;
|
291 |
|
|
block_active_mem+=block_get_blocks(mr->b.b)*512;
|
292 |
|
|
return 1;
|
293 |
|
|
}
|
294 |
|
|
}
|
295 |
|
|
bt->p=NULL;
|
296 |
|
|
}
|
297 |
|
|
return 0;
|
298 |
|
|
}
|