* disappear from the various lists...
*/
+/*
+ TPO format notes:
+ -----------------
+ Most of the ASCII strings embedded in the text will have a
+ byte-count prepended to the string. Unknown yet whether other
+ fields have this same byte-count, but so far it doesn't look like
+ it.
+
+ New format (3.x and later) begins with a string byte-count byte
+ and then a string starting with "TOPO! Ver. 3.", like "TOPO! Ver.
+ 3.3.4". Can contain routes/tracks/waypoints.
+
+ Older (pre-3.0) format does not have the above string. Contains
+ only tracks (routes too?). Waypoints are saved in a separate .TPG
+ file.
+
+ May contain these other strings:
+ Frmt: String:
+ ----- --------------------------------
+ 2.x "CTopoSymbol"
+ 2.x "CTopoBookmark"
+ 2.x "CTopoRoute". The actual routes we parse here.
+ 2.x "CTopoWaypoint". Saved in .tpg files.
+ 2.x/3.x "CTopoText"
+ 3.x "Notes"
+ 3.x "PNG." Embedded PNG image containing 2 rows of 40
+ symbols each. Starts with signature: 89 50 4e 47 0d
+ 0a 1a 0a, ends with signature 49 45 4e 44 ae 42 60 82.
+ 3.x "shapes"
+ 3.x "arrows"
+ 3.x "recreation"
+*/
#include "defs.h"
#include <string.h>
fwrite(cbuf, 8, 1, fp);
}
+/* Define a global here that we can query from multiple places */
+float tpo_version = 0.0;
+
/* tpo_check_version_string()
Check the first bytes of the file for a version 3.0 header. */
static void
if (strncmp(v3_id_string, string_buffer, strlen(v3_id_string)) == 0)
{
fatal(MYNAME ": gpsbabel can only read TPO version 2.7.7 or below; this file is %s\n", string_buffer);
+
+/*
+fprintf(stderr,"gpsbabel can only read TPO version 2.7.7 or below; this file is %s\n", string_buffer);
+*/
+
+ fseek(tpo_file_in, -(string_size+1), SEEK_CUR);
+ xfree(string_buffer);
+ tpo_version = 3.0; /* Really any 3.x version */
+ return;
+
}
else {
+ /* We found a version 1.x or 2.x file */
/* seek back to the beginning of the file */
fseek(tpo_file_in, -(string_size+1), SEEK_CUR);
- }
xfree(string_buffer);
-
+ tpo_version = 2.0; /* Really any 1.x or 2.x version */
+ return;
+ }
}
static void
/* tpo_read_until_section()
Keep reading bytes from the file until the section name is encountered,
- then seek backwards to the start of the section data. */
+ then go seek_bytes forwards (+) or backwards (-) to the start of
+ the section data. */
static void
-tpo_read_until_section(const char* section_name)
+tpo_read_until_section(const char* section_name, int seek_bytes)
{
char byte;
unsigned int match_index = 0;
if (byte == section_name[match_index]) {
match_index++;
if (match_index == strlen(section_name)) {
- fseek(tpo_file_in, -18, SEEK_CUR);
- header_size -= 18;
+/*fprintf(stderr,"Found %s\n", section_name);*/
+ fseek(tpo_file_in, seek_bytes, SEEK_CUR);
+ header_size += seek_bytes;
+
if (dumpheader && dumpheader[0] == '1') {
fseek(tpo_file_in, -header_size, SEEK_CUR);
tpo_dump_header_bytes(header_size);
}
return;
+
}
}
else {
tpo_file_in = xfopen(fname, "rb", MYNAME);
tpo_check_version_string();
- tpo_read_until_section("CTopoRoute");
+
+ if (tpo_version == 2.0)
+ {
+/*fprintf(stderr,"Version 2.x, Looking for CTopoRoute\n"); */
+ /* Back up 18 bytes if this section found */
+ tpo_read_until_section("CTopoRoute", -18);
+ }
+ else if (tpo_version == 3.0)
+ {
+/*fprintf(stderr,"Version 3.x, Looking for IEND\n"); */
+ /* Go forward four more bytes if this section found. "IEND"
+ * plus four bytes is the end of the embedded PNG image */
+ tpo_read_until_section("IEND", 4);
+ }
+ else {
+ fatal(MYNAME ": gpsbabel can only read TPO versions through 3.x.x\n");
+ }
}
static void
tpo_fread(&buff[0], 1, 2, tpo_file_in);
track_count = le_read16(&buff[0]);
+/*fprintf(stderr,"track_count:%d\n", track_count);*/
+
/* 4 unknown bytes */
tpo_fread(&buff[0], 1, 4, tpo_file_in);
double lat, lon, amt, x, y, z;
short lat_delta, lon_delta;
unsigned char temp_buffer[2];
-// fprintf(stderr, "%f/%f\n", waypointp->latitude, waypointp->longitude);
+
+/* fprintf(stderr, "%f/%f\n", waypointp->latitude, waypointp->longitude); */
+
/* convert lat/lon position to XYZ meters */
GPS_Math_WGS84LatLonH_To_XYZ(
waypointp->latitude,
/* latitude delta from first route point */
lat_delta = (short)((first_track_waypoint_lat - lat) / output_track_lat_scale);
le_write16(temp_buffer, lat_delta);
-// fprintf(stderr, "%f %f: %x %x - %f %f %f / %f\n", lon, lat, lon_delta, lat_delta, first_track_waypoint_lat, lat, output_track_lat_scale, (first_track_waypoint_lat - lat) );
+
+/*
+fprintf(stderr, "%f %f: %x %x - %f %f %f / %f\n", lon, lat, lon_delta, lat_delta, first_track_waypoint_lat, lat, output_track_lat_scale, (first_track_waypoint_lat - lat) );
+*/
+
fwrite(temp_buffer, 1, 2, tpo_file_out);
}
/* TPO format can read and write tracks only */
ff_vecs_t tpo_vecs = {
-ff_type_internal, // ff_type_file,
- { ff_cap_none | ff_cap_none, ff_cap_read | ff_cap_write, ff_cap_none | ff_cap_none },
+ ff_type_file, /* ff_type_internal */
+/* { ff_cap_none | ff_cap_none, ff_cap_read | ff_cap_write, ff_cap_none | ff_cap_none }, */
+ { ff_cap_none | ff_cap_none, ff_cap_read, ff_cap_none | ff_cap_none },
tpo_rd_init,
tpo_wr_init,
tpo_rd_deinit,
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