mirror of
https://github.com/subsurface/subsurface.git
synced 2024-11-28 21:20:19 +00:00
a22adb8334
Since we do not currently handle buddy pressure properly, let's just ignore that information for now. Unfortunately, this information is lost in this case, but if we include it, the pressure graph is going to be bogus. Signed-off-by: Miika Turkia <miika.turkia@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
424 lines
10 KiB
C
424 lines
10 KiB
C
#include <string.h>
|
|
|
|
#include "dive.h"
|
|
#include "divelist.h"
|
|
#include "file.h"
|
|
|
|
|
|
// Convert bytes into an INT
|
|
#define array_uint16_le(p) ((unsigned int) (p)[0] \
|
|
+ ((p)[1]<<8) )
|
|
#define array_uint32_le(p) ((unsigned int) (p)[0] \
|
|
+ ((p)[1]<<8) + ((p)[2]<<16) \
|
|
+ ((p)[3]<<24))
|
|
|
|
#if __WIN32__
|
|
static char *strndup (const char *s, size_t n)
|
|
{
|
|
char *cpy;
|
|
size_t len = strlen(s);
|
|
if (n < len)
|
|
len = n;
|
|
if ((cpy = malloc(len + 1)) != NULL) {
|
|
cpy[len] = '\0';
|
|
memcpy(cpy, s, len);
|
|
}
|
|
return cpy;
|
|
}
|
|
#endif
|
|
|
|
struct lv_event {
|
|
time_t time;
|
|
struct pressure {
|
|
int sensor;
|
|
int mbar;
|
|
} pressure;
|
|
};
|
|
|
|
uint16_t primary_sensor;
|
|
|
|
static int handle_event_ver2(int code, const unsigned char *ps, unsigned int ps_ptr, struct lv_event *event)
|
|
{
|
|
// Skip 4 bytes
|
|
return 4;
|
|
}
|
|
|
|
|
|
static int handle_event_ver3(int code, const unsigned char *ps, unsigned int ps_ptr, struct lv_event *event)
|
|
{
|
|
int skip = 4;
|
|
uint16_t current_sensor;
|
|
|
|
switch (code) {
|
|
case 0x0002: // Unknown
|
|
case 0x0004: // Unknown
|
|
skip = 4;
|
|
break;
|
|
case 0x0005: // Unknown
|
|
skip = 6;
|
|
break;
|
|
case 0x0007: // Gas
|
|
// 4 byte time
|
|
// 1 byte O2, 1 bye He
|
|
skip = 6;
|
|
break;
|
|
case 0x0008:
|
|
// 4 byte time
|
|
// 2 byte gas set point 2
|
|
skip = 6;
|
|
break;
|
|
case 0x000f:
|
|
// Tank pressure
|
|
event->time = array_uint32_le(ps + ps_ptr);
|
|
|
|
/* As far as I know, Liquivision supports 2 sensors, own and buddie's. This is my
|
|
* best guess how it is represented. */
|
|
|
|
current_sensor = array_uint16_le(ps + ps_ptr + 4);
|
|
if (primary_sensor == 0) {
|
|
primary_sensor = current_sensor;
|
|
}
|
|
if (current_sensor == primary_sensor) {
|
|
event->pressure.sensor = 0;
|
|
event->pressure.mbar = array_uint16_le(ps + ps_ptr + 6) * 10; // cb->mb
|
|
} else {
|
|
/* Ignoring the buddy sensor for no as we cannot draw it on the profile.
|
|
event->pressure.sensor = 1;
|
|
event->pressure.mbar = array_uint16_le(ps + ps_ptr + 6) * 10; // cb->mb
|
|
*/
|
|
}
|
|
// 1 byte PSR
|
|
// 1 byte ST
|
|
skip = 10;
|
|
break;
|
|
case 0x0010:
|
|
skip = 26;
|
|
break;
|
|
case 0x0015: // Unknown
|
|
skip = 2;
|
|
break;
|
|
default:
|
|
skip = 4;
|
|
break;
|
|
}
|
|
|
|
return skip;
|
|
}
|
|
|
|
static void parse_dives (int log_version, const unsigned char *buf, unsigned int buf_size)
|
|
{
|
|
unsigned int ptr = 0;
|
|
unsigned char model;
|
|
|
|
struct dive *dive;
|
|
struct divecomputer *dc;
|
|
struct sample *sample;
|
|
|
|
while (ptr < buf_size) {
|
|
int i;
|
|
dive = alloc_dive();
|
|
primary_sensor = 0;
|
|
dc = &dive->dc;
|
|
|
|
/* Just the main cylinder until we can handle the buddy cylinder porperly */
|
|
for (i = 0; i < 1; i++)
|
|
fill_default_cylinder(&dive->cylinder[i]);
|
|
|
|
// Model 0=Xen, 1,2=Xeo, 4=Lynx, other=Liquivision
|
|
model = *(buf + ptr);
|
|
switch (model) {
|
|
case 0:
|
|
dc->model = "Xen";
|
|
break;
|
|
case 1:
|
|
case 2:
|
|
dc->model = "Xeo";
|
|
break;
|
|
case 4:
|
|
dc->model = "Lynx";
|
|
break;
|
|
default:
|
|
dc->model = "Liquivision";
|
|
break;
|
|
}
|
|
ptr++;
|
|
|
|
// Dive location, assemble Location and Place
|
|
unsigned int len, place_len;
|
|
char *location;
|
|
len = array_uint32_le(buf + ptr);
|
|
ptr += 4;
|
|
place_len = array_uint32_le(buf + ptr + len);
|
|
|
|
if (len && place_len) {
|
|
location = malloc(len + place_len + 4);
|
|
memset(location, 0, len + place_len + 4);
|
|
memcpy(location, buf + ptr, len);
|
|
memcpy(location + len, ", ", 2);
|
|
memcpy(location + len + 2, buf + ptr + len + 4, place_len);
|
|
} else if (len) {
|
|
location = strndup(buf + ptr, len);
|
|
} else if (place_len) {
|
|
location = strndup(buf + ptr + len + 4, place_len);
|
|
}
|
|
|
|
/* Store the location only if we have one */
|
|
if (len || place_len) {
|
|
dive->dive_site_uuid = create_dive_site(location);
|
|
free(location);
|
|
}
|
|
|
|
ptr += len + 4 + place_len;
|
|
|
|
// Dive comment
|
|
len = array_uint32_le(buf + ptr);
|
|
ptr += 4;
|
|
|
|
// Blank notes are better than the default text
|
|
if (len && strncmp(buf + ptr, "Comment ...", 11)) {
|
|
dive->notes = strndup(buf + ptr, len);
|
|
}
|
|
ptr += len;
|
|
|
|
dive->id = array_uint32_le(buf + ptr);
|
|
ptr += 4;
|
|
|
|
dive->number = array_uint16_le(buf + ptr) + 1;
|
|
ptr += 2;
|
|
|
|
dive->duration.seconds = array_uint32_le(buf + ptr); // seconds
|
|
ptr += 4;
|
|
|
|
dive->maxdepth.mm = array_uint16_le(buf + ptr) * 10; // cm->mm
|
|
ptr += 2;
|
|
|
|
dive->meandepth.mm = array_uint16_le(buf + ptr) * 10; // cm->mm
|
|
ptr += 2;
|
|
|
|
dive->when = array_uint32_le(buf + ptr);
|
|
ptr += 4;
|
|
|
|
//unsigned int end_time = array_uint32_le(buf + ptr);
|
|
ptr += 4;
|
|
|
|
//unsigned int sit = array_uint32_le(buf + ptr);
|
|
ptr += 4;
|
|
//if (sit == 0xffffffff) {
|
|
//}
|
|
|
|
dive->surface_pressure.mbar = array_uint16_le(buf + ptr); // ???
|
|
ptr += 2;
|
|
|
|
//unsigned int rep_dive = array_uint16_le(buf + ptr);
|
|
ptr += 2;
|
|
|
|
dive->mintemp.mkelvin = C_to_mkelvin((float)array_uint16_le(buf + ptr)/10);// C->mK
|
|
ptr += 2;
|
|
|
|
dive->maxtemp.mkelvin = C_to_mkelvin((float)array_uint16_le(buf + ptr)/10);// C->mK
|
|
ptr += 2;
|
|
|
|
dive->salinity = *(buf + ptr); // ???
|
|
ptr += 1;
|
|
|
|
unsigned int sample_count = array_uint32_le(buf + ptr);
|
|
ptr += 4;
|
|
|
|
// Sample interval
|
|
unsigned char sample_interval;
|
|
sample_interval = 1;
|
|
|
|
unsigned char intervals[6] = {1,2,5,10,30,60};
|
|
if (*(buf + ptr) < 6)
|
|
sample_interval = intervals[*(buf + ptr)];
|
|
ptr += 1;
|
|
|
|
float start_cns = 0;
|
|
unsigned char dive_mode = 0, algorithm = 0;
|
|
if (array_uint32_le(buf + ptr) != sample_count) {
|
|
// Xeo, with CNS and OTU
|
|
start_cns = *(float *) (buf + ptr);
|
|
ptr += 4;
|
|
dive->cns = *(float *) (buf + ptr); // end cns
|
|
ptr += 4;
|
|
dive->otu = *(float *) (buf + ptr);
|
|
ptr += 4;
|
|
dive_mode = *(buf + ptr++); // 0=Deco, 1=Gauge, 2=None
|
|
algorithm = *(buf + ptr++); // 0=ZH-L16C+GF
|
|
sample_count = array_uint32_le(buf + ptr);
|
|
}
|
|
// we aren't using the start_cns, dive_mode, and algorithm, yet
|
|
(void)start_cns;
|
|
(void)dive_mode;
|
|
(void)algorithm;
|
|
|
|
ptr += 4;
|
|
|
|
// Parse dive samples
|
|
const unsigned char *ds = buf + ptr;
|
|
const unsigned char *ts = buf + ptr + sample_count * 2 + 4;
|
|
const unsigned char *ps = buf + ptr + sample_count * 4 + 4;
|
|
unsigned int ps_count = array_uint32_le(ps);
|
|
ps += 4;
|
|
|
|
// Bump ptr
|
|
ptr += sample_count * 4 + 4;
|
|
|
|
// Handle events
|
|
unsigned int ps_ptr;
|
|
ps_ptr = 0;
|
|
|
|
unsigned int event_code, d = 0, e;
|
|
struct lv_event event;
|
|
|
|
// Loop through events
|
|
for (e = 0; e < ps_count; e++) {
|
|
// Get event
|
|
event_code = array_uint16_le(ps + ps_ptr);
|
|
ps_ptr += 2;
|
|
|
|
if (log_version == 3) {
|
|
ps_ptr += handle_event_ver3(event_code, ps, ps_ptr, &event);
|
|
if (event_code != 0xf)
|
|
continue; // ignore all by pressure sensor event
|
|
} else { // version 2
|
|
ps_ptr += handle_event_ver2(event_code, ps, ps_ptr, &event);
|
|
continue; // ignore all events
|
|
}
|
|
int sample_time, last_time;
|
|
int depth_mm, last_depth, temp_mk, last_temp;
|
|
|
|
while (true) {
|
|
sample = prepare_sample(dc);
|
|
|
|
// Get sample times
|
|
sample_time = d * sample_interval;
|
|
depth_mm = array_uint16_le(ds + d * 2) * 10; // cm->mm
|
|
temp_mk = C_to_mkelvin((float)array_uint16_le(ts + d * 2) / 10); // dC->mK
|
|
last_time = (d ? (d - 1) * sample_interval : 0);
|
|
|
|
if (d == sample_count) {
|
|
// We still have events to record
|
|
sample->time.seconds = event.time;
|
|
sample->depth.mm = array_uint16_le(ds + (d - 1) * 2) * 10; // cm->mm
|
|
sample->temperature.mkelvin = C_to_mkelvin((float) array_uint16_le(ts + (d - 1) * 2) / 10); // dC->mK
|
|
sample->sensor = event.pressure.sensor;
|
|
sample->cylinderpressure.mbar = event.pressure.mbar;
|
|
finish_sample(dc);
|
|
|
|
break;
|
|
} else if (event.time > sample_time) {
|
|
// Record sample and loop
|
|
sample->time.seconds = sample_time;
|
|
sample->depth.mm = depth_mm;
|
|
sample->temperature.mkelvin = temp_mk;
|
|
finish_sample(dc);
|
|
d++;
|
|
|
|
continue;
|
|
} else if (event.time == sample_time) {
|
|
sample->time.seconds = sample_time;
|
|
sample->depth.mm = depth_mm;
|
|
sample->temperature.mkelvin = temp_mk;
|
|
sample->sensor = event.pressure.sensor;
|
|
sample->cylinderpressure.mbar = event.pressure.mbar;
|
|
finish_sample(dc);
|
|
|
|
break;
|
|
} else { // Event is prior to sample
|
|
sample->time.seconds = event.time;
|
|
sample->sensor = event.pressure.sensor;
|
|
sample->cylinderpressure.mbar = event.pressure.mbar;
|
|
if (last_time == sample_time) {
|
|
sample->depth.mm = depth_mm;
|
|
sample->temperature.mkelvin = temp_mk;
|
|
} else {
|
|
// Extrapolate
|
|
last_depth = array_uint16_le(ds + (d - 1) * 2) * 10; // cm->mm
|
|
last_temp = C_to_mkelvin((float) array_uint16_le(ts + (d - 1) * 2) / 10); // dC->mK
|
|
sample->depth.mm = last_depth + (depth_mm - last_depth)
|
|
* (event.time - last_time) / sample_interval;
|
|
sample->temperature.mkelvin = last_temp + (temp_mk - last_temp)
|
|
* (event.time - last_time) / sample_interval;
|
|
}
|
|
finish_sample(dc);
|
|
|
|
break;
|
|
}
|
|
} // while (true);
|
|
} // for each event sample
|
|
|
|
// record trailing depth samples
|
|
for ( ;d < sample_count; d++) {
|
|
sample = prepare_sample(dc);
|
|
sample->time.seconds = d * sample_interval;
|
|
|
|
sample->depth.mm = array_uint16_le(ds + d * 2) * 10; // cm->mm
|
|
sample->temperature.mkelvin =
|
|
C_to_mkelvin((float)array_uint16_le(ts + d * 2) / 10);
|
|
finish_sample(dc);
|
|
}
|
|
|
|
if (log_version == 3 && model == 4) {
|
|
// Advance to begin of next dive
|
|
switch (array_uint16_le(ps + ps_ptr)) {
|
|
case 0x0000:
|
|
ps_ptr += 5;
|
|
break;
|
|
case 0x0100:
|
|
ps_ptr += 7;
|
|
break;
|
|
case 0x0200:
|
|
ps_ptr += 9;
|
|
break;
|
|
case 0x0300:
|
|
ps_ptr += 11;
|
|
break;
|
|
case 0x0b0b:
|
|
ps_ptr += 27;
|
|
break;
|
|
}
|
|
|
|
while (*(ps + ps_ptr) != 0x04)
|
|
ps_ptr++;
|
|
}
|
|
|
|
// End dive
|
|
dive->downloaded = true;
|
|
record_dive(dive);
|
|
mark_divelist_changed(true);
|
|
|
|
// Advance ptr for next dive
|
|
ptr += ps_ptr + 4;
|
|
} // while
|
|
|
|
//DEBUG save_dives("/tmp/test.xml");
|
|
}
|
|
|
|
int try_to_open_liquivision(const char *filename, struct memblock *mem)
|
|
{
|
|
const unsigned char *buf = mem->buffer;
|
|
unsigned int buf_size = mem->size;
|
|
unsigned int ptr;
|
|
int log_version;
|
|
|
|
// Get name
|
|
unsigned int len = array_uint32_le(buf);
|
|
// Ignore name
|
|
ptr = 4 + len;
|
|
|
|
unsigned int dive_count = array_uint32_le(buf + ptr);
|
|
if (dive_count == 0xffffffff) {
|
|
// File version 3.0
|
|
log_version = 3;
|
|
ptr += 6;
|
|
dive_count = array_uint32_le(buf + ptr);
|
|
} else {
|
|
log_version = 2;
|
|
}
|
|
ptr += 4;
|
|
|
|
parse_dives(log_version, buf + ptr, buf_size - ptr);
|
|
|
|
return 1;
|
|
}
|