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sf_tre.c
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sf_tre.c
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#include "gimglib.h"
static void dump_poverview (uint8_t *ptr, int num, int size)
{
while(num -- > 0) {
int i;
printf("type=0x%2x", ptr[0]);
printf(" maxl=%2d", ptr[1]);
for (i = 2; i < size; i ++)
printf(" subtype=0x%2x", ptr[i]);
printf("\n");
ptr += size;
}
}
static void dump_subdiv (uint8_t *ptr, int level_num,
struct garmin_tre_map_level *levels, struct subfile_struct *rgn)
{
int level, global_index, level_index;
for (level = 0, global_index = 1; level < level_num; level ++) {
for (level_index = 0; level_index < levels[level].nsubdiv; level_index ++, global_index ++) {
struct garmin_tre_subdiv *div = (struct garmin_tre_subdiv *)ptr;
int bitshift = 24 - levels[level].bits;
printf("%5d %d off=%06x ele=%02x+%d, lng=%8d(%s), lat=%8d(%s), w=%5d, h=%5d %c",
global_index, level,
bytes_to_uint24(div->rgn_offset), div->elements, div->unknownbit,
bytes_to_sint24(div->center_lng), sint24_to_lng(bytes_to_sint24(div->center_lng)),
bytes_to_sint24(div->center_lat), sint24_to_lat(bytes_to_sint24(div->center_lat)),
div->width<<bitshift, div->height<<bitshift, div->terminate ? 'T' : ' ');
if (level == level_num - 1)
printf("\n");
else
printf(" next=%5d\n", div->next);
#if 0
if (rgn && div->unknownbit) {
int rgn1_offset = ((struct garmin_rgn *)rgn->header)->rgn1_offset;
int offset = bytes_to_uint24(div->rgn_offset);
int next_offset = level == level_num - 1 ?
bytes_to_uint24(div[1].rgn_offset - 2) :
bytes_to_uint24(div[1].rgn_offset);
if (div->elements == 0)
;
else if (div->elements == 0x10 || div->elements == 0x20)
offset += *(short *)(rgn->base + rgn1_offset + offset);
else if (div->elements == 0x30)
offset += *(short *)(rgn->base + rgn1_offset + offset + 2);
else
printf("???\n");
printf("RGN: %s\n", dump_unknown_bytes(rgn->base + rgn1_offset + offset, next_offset - offset));
}
#endif
ptr += level == level_num - 1 ?
sizeof(struct garmin_tre_subdiv) - 2 :
sizeof(struct garmin_tre_subdiv);
}
}
}
static void dump_maplevels (struct garmin_tre_map_level *levels, int num)
{
int i;
for (i = 0; i < num; i ++) {
printf("level=%d bit456=0x%x %s bits=%2d nsubdiv=%d\n",
levels[i].level, levels[i].bit456,
levels[i].inherited ? "inher" : "noinh",
levels[i].bits, levels[i].nsubdiv);
}
}
static void dump_tre7 (uint8_t *ptr, int size, int rec_size,
struct garmin_tre_map_level *levels, struct subfile_struct *rgn)
{
int sdidx = 1;
while (size >= rec_size) {
printf("%4d:", sdidx ++);
printf(" rgn2_reloff=0x%x", *(uint32_t *)ptr);
if (rec_size >= 8)
printf(" rgn3_reloff=0x%x", *(uint32_t *)(ptr+4));
if (rec_size >= 12)
printf(" rgn4_reloff=0x%x", *(uint32_t *)(ptr+8));
if (rec_size >= 16)
printf(" rgn5_reloff=0x%x", *(uint32_t *)(ptr+12));
if (rec_size % 4)
printf(" flag=0x%x\n", *(ptr+rec_size-1));
else
printf("\n");
#if 0
if (*(uint32_t *)(ptr+rec_size) - *(uint32_t *)(ptr))
printf("RGN2: %s\n", dump_unknown_bytes(rgn->base + ((struct garmin_rgn *)rgn->header)->rgn2_offset + *(uint32_t *)(ptr), *(uint32_t *)(ptr+rec_size) - *(uint32_t *)(ptr)));
if (rec_size >= 8 && *(uint32_t *)(ptr+rec_size+4) - *(uint32_t *)(ptr+4))
printf("RGN3: %s\n", dump_unknown_bytes(rgn->base + ((struct garmin_rgn *)rgn->header)->rgn3_offset + *(uint32_t *)(ptr+4), *(uint32_t *)(ptr+rec_size+4) - *(uint32_t *)(ptr+4)));
if (rec_size >= 12 && *(uint32_t *)(ptr+rec_size+8) - *(uint32_t *)(ptr+8))
printf("RGN4: %s\n", dump_unknown_bytes(rgn->base + ((struct garmin_rgn *)rgn->header)->rgn4_offset + *(uint32_t *)(ptr+8), *(uint32_t *)(ptr+rec_size+8) - *(uint32_t *)(ptr+8)));
if (rec_size >= 16 && *(uint32_t *)(ptr+rec_size+12) - *(uint32_t *)(ptr+12))
printf("RGN5: %s\n", dump_unknown_bytes(rgn->base + ((struct garmin_rgn *)rgn->header)->rgn5_offset + *(uint32_t *)(ptr+12), *(uint32_t *)(ptr+rec_size+12) - *(uint32_t *)(ptr+12)));
#endif
ptr += rec_size;
size -= rec_size;
}
}
void dump_tre (struct subfile_struct *tre)
{
struct garmin_tre *header = (struct garmin_tre *)tre->header;
struct garmin_tre_map_level *maplevels;
int progress = 0;
assert(tre->typeid == ST_TRE);
dump_comm(tre->header);
printf("=== TRE HEADER ===\n");
if (header->comm.hlen < 0x74)
goto headerfini;
progress = 0x74;
printf("Bound: %d(%s) %d(%s) %d(%s) %d(%s)\n",
bytes_to_sint24(header->northbound), sint24_to_lat(bytes_to_sint24(header->northbound)),
bytes_to_sint24(header->eastbound), sint24_to_lng(bytes_to_sint24(header->eastbound)),
bytes_to_sint24(header->southbound), sint24_to_lat(bytes_to_sint24(header->southbound)),
bytes_to_sint24(header->westbound), sint24_to_lng(bytes_to_sint24(header->westbound)));
printf("TRE1 Map Levels: reloff=0x%x absoff=0x%x size=0x%x\n",
header->tre1_offset, tre->offset + header->tre1_offset, header->tre1_size);
printf("TRE2 Subdivisions: reloff=0x%x absoff=0x%x size=0x%x\n",
header->tre2_offset, tre->offset + header->tre2_offset, header->tre2_size);
printf("TRE3 Copyright: reloff=0x%x absoff=0x%x size=0x%x recsize=0x%x\n",
header->tre3_offset, tre->offset + header->tre3_offset, header->tre3_size, header->tre3_rec_size);
printf("unknown_03b: %s\n", dump_unknown_bytes(header->unknown_03b, sizeof(header->unknown_03b)));
printf("POI Flags: %s %s %s\n",
header->POI_flags & 0x1 ? "transp" : "not-transp",
header->POI_flags & 0x2 ? "street-before-num" : "num-before-street",
header->POI_flags & 0x4 ? "zip-before-city" : "city-before-zip");
printf("Draw Priority: %d\n", header->drawprio);
printf("unknown_041: %s\n", dump_unknown_bytes(header->unknown_041, sizeof(header->unknown_041)));
printf("TRE4 Polyline Overview: reloff=0x%x absoff=0x%x size=0x%x recsize=0x%x\n",
header->tre4_offset, tre->offset + header->tre4_offset, header->tre4_size, header->tre4_rec_size);
printf("unknown_054: %s\n", dump_unknown_bytes(header->unknown_054, sizeof(header->unknown_054)));
printf("TRE5 Polygon Overview: reloff=0x%x absoff=0x%x size=0x%x recsize=0x%x\n",
header->tre5_offset, tre->offset + header->tre5_offset, header->tre5_size, header->tre5_rec_size);
printf("unknown_062: %s\n", dump_unknown_bytes(header->unknown_062, sizeof(header->unknown_062)));
printf("TRE6 Point Overview: reloff=0x%x absoff=0x%x size=0x%x recsize=0x%x\n",
header->tre6_offset, tre->offset + header->tre6_offset, header->tre6_size, header->tre6_rec_size);
printf("unknown_070: %s\n", dump_unknown_bytes(header->unknown_070, sizeof(header->unknown_070)));
if (header->comm.hlen < 0x78)
goto headerfini;
progress = 0x78;
printf("Map ID: 0x%x(%d)\n", header->mapID, header->mapID);
if (header->comm.hlen < 0x9a)
goto headerfini;
progress = 0x9a;
printf("unknown_078: %s\n", dump_unknown_bytes(header->unknown_078, sizeof(header->unknown_078)));
printf("TRE7: reloff=0x%x absoff=0x%x size=0x%x recsize=0x%x\n",
header->tre7_offset, tre->offset + header->tre7_offset, header->tre7_size, header->tre7_rec_size);
printf("unknown_086: %s\n", dump_unknown_bytes(header->unknown_086, sizeof(header->unknown_086)));
printf("TRE8: reloff=0x%x absoff=0x%x size=0x%x recsize=0x%x\n",
header->tre8_offset, tre->offset + header->tre8_offset, header->tre8_size, header->tre8_rec_size);
printf("unknown_094: %s\n", dump_unknown_bytes(header->unknown_094, sizeof(header->unknown_094)));
if (header->comm.hlen < 0xbc)
goto headerfini;
progress = 0xbc;
printf("Encrpytion Key: %s\n", dump_unknown_bytes(header->key, sizeof(header->key)));
printf("TRE9: reloff=0x%x absoff=0x%x size=0x%x recsize=0x%x\n",
header->tre9_offset, tre->offset + header->tre9_offset, header->tre9_size, header->tre9_rec_size);
printf("unknown_0b8: %s\n", dump_unknown_bytes(header->unknown_0b8, sizeof(header->unknown_0b8)));
if (header->comm.hlen < 0xca)
goto headerfini;
progress = 0xca;
printf("TRE10: reloff=0x%x absoff=0x%x size=0x%x recsize=0x%x\n",
header->tre10_offset, tre->offset + header->tre10_offset, header->tre10_size, header->tre10_rec_size);
printf("unknown_0c6: %s\n", dump_unknown_bytes(header->unknown_0c6, sizeof(header->unknown_0c6)));
if (header->comm.hlen < 0xce)
goto headerfini;
progress = 0xce;
printf("unknown_0ca: %s\n", dump_unknown_bytes(header->unknown_0ca, sizeof(header->unknown_0ca)));
if (header->comm.hlen < 0xcf)
goto headerfini;
progress = 0xcf;
printf("unknown_0ce: 0x%x\n", header->unknown_0ce);
headerfini:
if (header->comm.hlen > progress)
printf("from 0x%x to 0x%x (0x%x bytes): %s\n",
progress, header->comm.hlen - 1,
header->comm.hlen - progress,
dump_unknown_bytes((uint8_t *)header + progress, header->comm.hlen - progress));
printf("=== MAP LEVELS ===\n");
if (header->comm.locked) {
printf("locked: %s\n", dump_unknown_bytes(tre->base + header->tre1_offset, header->tre1_size));
maplevels = (struct garmin_tre_map_level *)malloc(header->tre1_size);
unlockml((unsigned char *)maplevels,
(unsigned char *)tre->base + header->tre1_offset,
header->tre1_size,
*(unsigned int *)(header->key+16));
//TODO some simple verification, maybe?
} else {
maplevels = (struct garmin_tre_map_level *)malloc(header->tre1_size);
memcpy(maplevels, tre->base + header->tre1_offset, header->tre1_size);
}
dump_maplevels(maplevels, header->tre1_size / sizeof(struct garmin_tre_map_level));
printf("=== SUBDIVISIONS ===\n");
dump_subdiv(tre->base + header->tre2_offset, header->tre1_size / 4,
maplevels, tre->map ? tre->map->rgn : NULL);
//TODO copyright
if (header->tre4_size) {
printf("=== POLYLINE OVERVIEWS ===\n");
dump_poverview(tre->base + header->tre4_offset,
header->tre4_size / header->tre4_rec_size,
header->tre4_rec_size);
}
if (header->tre5_size) {
printf("=== POLYGON OVERVIEWS ===\n");
dump_poverview(tre->base + header->tre5_offset,
header->tre5_size / header->tre5_rec_size,
header->tre5_rec_size);
}
if (header->tre6_size) {
printf("=== POINT OVERVIEWS ===\n");
dump_poverview(tre->base + header->tre6_offset,
header->tre6_size / header->tre6_rec_size,
header->tre6_rec_size);
}
if (header->comm.hlen >= 0x86 && header->tre7_size) {
printf("=== TRE7 ===\n");
dump_tre7(tre->base + header->tre7_offset, header->tre7_size,
header->tre7_rec_size, maplevels, tre->map->rgn);
}
free(maplevels);
}