aboutsummaryrefslogtreecommitdiffstats
path: root/core/datatrak.c
diff options
context:
space:
mode:
Diffstat (limited to 'core/datatrak.c')
-rw-r--r--core/datatrak.c698
1 files changed, 698 insertions, 0 deletions
diff --git a/core/datatrak.c b/core/datatrak.c
new file mode 100644
index 000000000..204ebd9b3
--- /dev/null
+++ b/core/datatrak.c
@@ -0,0 +1,698 @@
+// Clang has a bug on zero-initialization of C structs.
+#pragma clang diagnostic ignored "-Wmissing-field-initializers"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+#include "datatrak.h"
+#include "dive.h"
+#include "units.h"
+#include "device.h"
+#include "gettext.h"
+
+extern struct sample *add_sample(struct sample *sample, int time, struct divecomputer *dc);
+
+unsigned char lector_bytes[2], lector_word[4], tmp_1byte, *byte;
+unsigned int tmp_2bytes;
+char is_nitrox, is_O2, is_SCR;
+unsigned long tmp_4bytes;
+
+static unsigned int two_bytes_to_int(unsigned char x, unsigned char y)
+{
+ return (x << 8) + y;
+}
+
+static unsigned long four_bytes_to_long(unsigned char x, unsigned char y, unsigned char z, unsigned char t)
+{
+ return ((long)x << 24) + ((long)y << 16) + ((long)z << 8) + (long)t;
+}
+
+static unsigned char *byte_to_bits(unsigned char byte)
+{
+ unsigned char i, *bits = (unsigned char *)malloc(8);
+
+ for (i = 0; i < 8; i++)
+ bits[i] = byte & (1 << i);
+ return bits;
+}
+
+/*
+ * Datatrak stores the date in days since 01-01-1600, while Subsurface uses
+ * time_t (seconds since 00:00 01-01-1970). Function subtracts
+ * (1970 - 1600) * 365,2425 = 135139,725 to our date variable, getting the
+ * days since Epoch.
+ */
+static time_t date_time_to_ssrfc(unsigned long date, int time)
+{
+ time_t tmp;
+ tmp = (date - 135140) * 86400 + time * 60;
+ return tmp;
+}
+
+static unsigned char to_8859(unsigned char char_cp850)
+{
+ static const unsigned char char_8859[46] = { 0xc7, 0xfc, 0xe9, 0xe2, 0xe4, 0xe0, 0xe5, 0xe7,
+ 0xea, 0xeb, 0xe8, 0xef, 0xee, 0xec, 0xc4, 0xc5,
+ 0xc9, 0xe6, 0xc6, 0xf4, 0xf6, 0xf2, 0xfb, 0xf9,
+ 0xff, 0xd6, 0xdc, 0xf8, 0xa3, 0xd8, 0xd7, 0x66,
+ 0xe1, 0xed, 0xf3, 0xfa, 0xf1, 0xd1, 0xaa, 0xba,
+ 0xbf, 0xae, 0xac, 0xbd, 0xbc, 0xa1 };
+ return char_8859[char_cp850 - 0x80];
+}
+
+static char *to_utf8(unsigned char *in_string)
+{
+ int outlen, inlen, i = 0, j = 0;
+ inlen = strlen((char *)in_string);
+ outlen = inlen * 2 + 1;
+
+ char *out_string = calloc(outlen, 1);
+ for (i = 0; i < inlen; i++) {
+ if (in_string[i] < 127)
+ out_string[j] = in_string[i];
+ else {
+ if (in_string[i] > 127 && in_string[i] <= 173)
+ in_string[i] = to_8859(in_string[i]);
+ out_string[j] = (in_string[i] >> 6) | 0xC0;
+ j++;
+ out_string[j] = (in_string[i] & 0x3F) | 0x80;
+ }
+ j++;
+ }
+ out_string[j + 1] = '\0';
+ return out_string;
+}
+
+/*
+ * Subsurface sample structure doesn't support the flags and alarms in the dt .log
+ * so will treat them as dc events.
+ */
+static struct sample *dtrak_profile(struct dive *dt_dive, FILE *archivo)
+{
+ int i, j = 1, interval, o2percent = dt_dive->cylinder[0].gasmix.o2.permille / 10;
+ struct sample *sample = dt_dive->dc.sample;
+ struct divecomputer *dc = &dt_dive->dc;
+
+ for (i = 1; i <= dt_dive->dc.alloc_samples; i++) {
+ if (fread(&lector_bytes, 1, 2, archivo) != 2)
+ return sample;
+ interval= 20 * (i + 1);
+ sample = add_sample(sample, interval, dc);
+ sample->depth.mm = (two_bytes_to_int(lector_bytes[0], lector_bytes[1]) & 0xFFC0) * 1000 / 410;
+ byte = byte_to_bits(two_bytes_to_int(lector_bytes[0], lector_bytes[1]) & 0x003F);
+ if (byte[0] != 0)
+ sample->in_deco = true;
+ else
+ sample->in_deco = false;
+ if (byte[1] != 0)
+ add_event(dc, sample->time.seconds, 0, 0, 0, "rbt");
+ if (byte[2] != 0)
+ add_event(dc, sample->time.seconds, 0, 0, 0, "ascent");
+ if (byte[3] != 0)
+ add_event(dc, sample->time.seconds, 0, 0, 0, "ceiling");
+ if (byte[4] != 0)
+ add_event(dc, sample->time.seconds, 0, 0, 0, "workload");
+ if (byte[5] != 0)
+ add_event(dc, sample->time.seconds, 0, 0, 0, "transmitter");
+ if (j == 3) {
+ read_bytes(1);
+ if (is_O2) {
+ read_bytes(1);
+ o2percent = tmp_1byte;
+ }
+ j = 0;
+ }
+ free(byte);
+
+ // In commit 5f44fdd setpoint replaced po2, so although this is not necessarily CCR dive ...
+ if (is_O2)
+ sample->setpoint.mbar = calculate_depth_to_mbar(sample->depth.mm, dt_dive->surface_pressure, 0) * o2percent / 100;
+ j++;
+ }
+bail:
+ return sample;
+}
+
+/*
+ * Reads the header of a file and returns the header struct
+ * If it's not a DATATRAK file returns header zero initalized
+ */
+static dtrakheader read_file_header(FILE *archivo)
+{
+ dtrakheader fileheader = { 0 };
+ const short headerbytes = 12;
+ unsigned char *lector = (unsigned char *)malloc(headerbytes);
+
+ if (fread(lector, 1, headerbytes, archivo) != headerbytes) {
+ free(lector);
+ return fileheader;
+ }
+ if (two_bytes_to_int(lector[0], lector[1]) != 0xA100) {
+ report_error(translate("gettextFromC", "Error: the file does not appear to be a DATATRAK divelog"));
+ free(lector);
+ return fileheader;
+ }
+ fileheader.header = (lector[0] << 8) + lector[1];
+ fileheader.dc_serial_1 = two_bytes_to_int(lector[2], lector[3]);
+ fileheader.dc_serial_2 = two_bytes_to_int(lector[4], lector[5]);
+ fileheader.divesNum = two_bytes_to_int(lector[7], lector[6]);
+ free(lector);
+ return fileheader;
+}
+
+#define CHECK(_func, _val) if ((_func) != (_val)) goto bail
+
+/*
+ * Parses the dive extracting its data and filling a subsurface's dive structure
+ */
+bool dt_dive_parser(FILE *archivo, struct dive *dt_dive)
+{
+ unsigned char n;
+ int profile_length;
+ char *tmp_notes_str = NULL;
+ unsigned char *tmp_string1 = NULL,
+ *locality = NULL,
+ *dive_point = NULL;
+ char buffer[1024];
+ struct divecomputer *dc = &dt_dive->dc;
+
+ is_nitrox = is_O2 = is_SCR = 0;
+
+ /*
+ * Parse byte to byte till next dive entry
+ */
+ n = 0;
+ CHECK(fread(&lector_bytes[n], 1, 1, archivo), 1);
+ while (lector_bytes[n] != 0xA0)
+ CHECK(fread(&lector_bytes[n], 1, 1, archivo), 1);
+
+ /*
+ * Found dive header 0xA000, verify second byte
+ */
+ CHECK(fread(&lector_bytes[n+1], 1, 1, archivo), 1);
+ if (two_bytes_to_int(lector_bytes[0], lector_bytes[1]) != 0xA000) {
+ printf("Error: byte = %4x\n", two_bytes_to_int(lector_bytes[0], lector_bytes[1]));
+ return false;
+ }
+
+ /*
+ * Begin parsing
+ * First, Date of dive, 4 bytes
+ */
+ read_bytes(4);
+
+
+ /*
+ * Next, Time in minutes since 00:00
+ */
+ read_bytes(2);
+
+ dt_dive->dc.when = dt_dive->when = (timestamp_t)date_time_to_ssrfc(tmp_4bytes, tmp_2bytes);
+
+ /*
+ * Now, Locality, 1st byte is long of string, rest is string
+ */
+ read_bytes(1);
+ read_string(locality);
+
+ /*
+ * Next, Dive point, defined as Locality
+ */
+ read_bytes(1);
+ read_string(dive_point);
+
+ /*
+ * Subsurface only have a location variable, so we have to merge DTrak's
+ * Locality and Dive points.
+ */
+ snprintf(buffer, sizeof(buffer), "%s, %s", locality, dive_point);
+ dt_dive->dive_site_uuid = get_dive_site_uuid_by_name(buffer, NULL);
+ if (dt_dive->dive_site_uuid == 0)
+ dt_dive->dive_site_uuid = create_dive_site(buffer, dt_dive->when);
+ free(locality);
+ free(dive_point);
+
+ /*
+ * Altitude. Don't exist in Subsurface, the equivalent would be
+ * surface air pressure which can, be calculated from altitude.
+ * As dtrak registers altitude intervals, we, arbitrarily, choose
+ * the lower altitude/pressure equivalence for each segment. So
+ *
+ * Datatrak table * Conversion formula:
+ * *
+ * byte = 1 0 - 700 m * P = P0 * exp(-(g * M * h ) / (R * T0))
+ * byte = 2 700 - 1700m * P0 = sealevel pressure = 101325 Pa
+ * byte = 3 1700 - 2700 m * g = grav. acceleration = 9,80665 m/s²
+ * byte = 4 2700 - * m * M = molar mass (dry air) = 0,0289644 Kg/mol
+ * * h = altitude over sea level (m)
+ * * R = Universal gas constant = 8,31447 J/(mol*K)
+ * * T0 = sea level standard temperature = 288,15 K
+ */
+ read_bytes(1);
+ switch (tmp_1byte) {
+ case 1:
+ dt_dive->dc.surface_pressure.mbar = 1013;
+ break;
+ case 2:
+ dt_dive->dc.surface_pressure.mbar = 932;
+ break;
+ case 3:
+ dt_dive->dc.surface_pressure.mbar = 828;
+ break;
+ case 4:
+ dt_dive->dc.surface_pressure.mbar = 735;
+ break;
+ default:
+ dt_dive->dc.surface_pressure.mbar = 1013;
+ }
+
+ /*
+ * Interval (minutes)
+ */
+ read_bytes(2);
+ if (tmp_2bytes != 0x7FFF)
+ dt_dive->dc.surfacetime.seconds = (uint32_t) tmp_2bytes * 60;
+
+ /*
+ * Weather, values table, 0 to 6
+ * Subsurface don't have this record but we can use tags
+ */
+ dt_dive->tag_list = NULL;
+ read_bytes(1);
+ switch (tmp_1byte) {
+ case 1:
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "clear")));
+ break;
+ case 2:
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "misty")));
+ break;
+ case 3:
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "fog")));
+ break;
+ case 4:
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "rain")));
+ break;
+ case 5:
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "storm")));
+ break;
+ case 6:
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "snow")));
+ break;
+ default:
+ // unknown, do nothing
+ break;
+ }
+
+ /*
+ * Air Temperature
+ */
+ read_bytes(2);
+ if (tmp_2bytes != 0x7FFF)
+ dt_dive->dc.airtemp.mkelvin = C_to_mkelvin((double)(tmp_2bytes / 100));
+
+ /*
+ * Dive suit, values table, 0 to 6
+ */
+ read_bytes(1);
+ switch (tmp_1byte) {
+ case 1:
+ dt_dive->suit = strdup(QT_TRANSLATE_NOOP("gettextFromC", "No suit"));
+ break;
+ case 2:
+ dt_dive->suit = strdup(QT_TRANSLATE_NOOP("gettextFromC", "Shorty"));
+ break;
+ case 3:
+ dt_dive->suit = strdup(QT_TRANSLATE_NOOP("gettextFromC", "Combi"));
+ break;
+ case 4:
+ dt_dive->suit = strdup(QT_TRANSLATE_NOOP("gettextFromC", "Wet suit"));
+ break;
+ case 5:
+ dt_dive->suit = strdup(QT_TRANSLATE_NOOP("gettextFromC", "Semidry suit"));
+ break;
+ case 6:
+ dt_dive->suit = strdup(QT_TRANSLATE_NOOP("gettextFromC", "Dry suit"));
+ break;
+ default:
+ // unknown, do nothing
+ break;
+ }
+
+ /*
+ * Tank, volume size in liter*100. And initialize gasmix to air (default).
+ * Dtrak don't record init and end pressures, but consumed bar, so let's
+ * init a default pressure of 200 bar.
+ */
+ read_bytes(2);
+ if (tmp_2bytes != 0x7FFF) {
+ dt_dive->cylinder[0].type.size.mliter = tmp_2bytes * 10;
+ dt_dive->cylinder[0].type.description = strdup("");
+ dt_dive->cylinder[0].start.mbar = 200000;
+ dt_dive->cylinder[0].gasmix.he.permille = 0;
+ dt_dive->cylinder[0].gasmix.o2.permille = 210;
+ dt_dive->cylinder[0].manually_added = true;
+ }
+
+ /*
+ * Maximum depth, in cm.
+ */
+ read_bytes(2);
+ if (tmp_2bytes != 0x7FFF)
+ dt_dive->maxdepth.mm = dt_dive->dc.maxdepth.mm = (int32_t)tmp_2bytes * 10;
+
+ /*
+ * Dive time in minutes.
+ */
+ read_bytes(2);
+ if (tmp_2bytes != 0x7FFF)
+ dt_dive->duration.seconds = dt_dive->dc.duration.seconds = (uint32_t)tmp_2bytes * 60;
+
+ /*
+ * Minimum water temperature in C*100. If unknown, set it to 0K which
+ * is subsurface's value for "unknown"
+ */
+ read_bytes(2);
+ if (tmp_2bytes != 0x7fff)
+ dt_dive->watertemp.mkelvin = dt_dive->dc.watertemp.mkelvin = C_to_mkelvin((double)(tmp_2bytes / 100));
+ else
+ dt_dive->watertemp.mkelvin = 0;
+
+ /*
+ * Air used in bar*100.
+ */
+ read_bytes(2);
+ if (tmp_2bytes != 0x7FFF && dt_dive->cylinder[0].type.size.mliter)
+ dt_dive->cylinder[0].gas_used.mliter = dt_dive->cylinder[0].type.size.mliter * (tmp_2bytes / 100.0);
+
+ /*
+ * Dive Type 1 - Bit table. Subsurface don't have this record, but
+ * will use tags. Bits 0 and 1 are not used. Reuse coincident tags.
+ */
+ read_bytes(1);
+ byte = byte_to_bits(tmp_1byte);
+ if (byte[2] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "no stop")));
+ if (byte[3] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "deco")));
+ if (byte[4] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "single ascent")));
+ if (byte[5] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "multiple ascent")));
+ if (byte[6] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "fresh")));
+ if (byte[7] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "salt water")));
+ free(byte);
+
+ /*
+ * Dive Type 2 - Bit table, use tags again
+ */
+ read_bytes(1);
+ byte = byte_to_bits(tmp_1byte);
+ if (byte[0] != 0) {
+ taglist_add_tag(&dt_dive->tag_list, strdup("nitrox"));
+ is_nitrox = 1;
+ }
+ if (byte[1] != 0) {
+ taglist_add_tag(&dt_dive->tag_list, strdup("rebreather"));
+ is_SCR = 1;
+ dt_dive->dc.divemode = PSCR;
+ }
+ free(byte);
+
+ /*
+ * Dive Activity 1 - Bit table, use tags again
+ */
+ read_bytes(1);
+ byte = byte_to_bits(tmp_1byte);
+ if (byte[0] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "sight seeing")));
+ if (byte[1] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "club dive")));
+ if (byte[2] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "instructor")));
+ if (byte[3] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "instruction")));
+ if (byte[4] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "night")));
+ if (byte[5] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "cave")));
+ if (byte[6] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "ice")));
+ if (byte[7] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "search")));
+ free(byte);
+
+
+ /*
+ * Dive Activity 2 - Bit table, use tags again
+ */
+ read_bytes(1);
+ byte = byte_to_bits(tmp_1byte);
+ if (byte[0] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "wreck")));
+ if (byte[1] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "river")));
+ if (byte[2] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "drift")));
+ if (byte[3] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "photo")));
+ if (byte[4] != 0)
+ taglist_add_tag(&dt_dive->tag_list, strdup(QT_TRANSLATE_NOOP("gettextFromC", "other")));
+ free(byte);
+
+ /*
+ * Other activities - String 1st byte = long
+ * Will put this in dive notes before the true notes
+ */
+ read_bytes(1);
+ if (tmp_1byte != 0) {
+ read_string(tmp_string1);
+ snprintf(buffer, sizeof(buffer), "%s: %s\n",
+ QT_TRANSLATE_NOOP("gettextFromC", "Other activities"),
+ tmp_string1);
+ tmp_notes_str = strdup(buffer);
+ free(tmp_string1);
+ }
+
+ /*
+ * Dive buddies
+ */
+ read_bytes(1);
+ if (tmp_1byte != 0) {
+ read_string(tmp_string1);
+ dt_dive->buddy = strdup((char *)tmp_string1);
+ free(tmp_string1);
+ }
+
+ /*
+ * Dive notes
+ */
+ read_bytes(1);
+ if (tmp_1byte != 0) {
+ read_string(tmp_string1);
+ int len = snprintf(buffer, sizeof(buffer), "%s%s:\n%s",
+ tmp_notes_str ? tmp_notes_str : "",
+ QT_TRANSLATE_NOOP("gettextFromC", "Datatrak/Wlog notes"),
+ tmp_string1);
+ dt_dive->notes = calloc((len +1), 1);
+ dt_dive->notes = memcpy(dt_dive->notes, buffer, len);
+ free(tmp_string1);
+ if (tmp_notes_str != NULL)
+ free(tmp_notes_str);
+ }
+
+ /*
+ * Alarms 1 - Bit table - Not in Subsurface, we use the profile
+ */
+ read_bytes(1);
+
+ /*
+ * Alarms 2 - Bit table - Not in Subsurface, we use the profile
+ */
+ read_bytes(1);
+
+ /*
+ * Dive number (in datatrak, after import user has to renumber)
+ */
+ read_bytes(2);
+ dt_dive->number = tmp_2bytes;
+
+ /*
+ * Computer timestamp - Useless for Subsurface
+ */
+ read_bytes(4);
+
+ /*
+ * Model - table - Not included 0x14, 0x24, 0x41, and 0x73
+ * known to exist, but not its model name - To add in the future.
+ * Strangely 0x00 serves for manually added dives and a dc too, at
+ * least in EXAMPLE.LOG file, shipped with the software.
+ */
+ read_bytes(1);
+ switch (tmp_1byte) {
+ case 0x00:
+ dt_dive->dc.model = strdup(QT_TRANSLATE_NOOP("gettextFromC", "Manually entered dive"));
+ break;
+ case 0x1C:
+ dt_dive->dc.model = strdup("Aladin Air");
+ break;
+ case 0x1D:
+ dt_dive->dc.model = strdup("Spiro Monitor 2 plus");
+ break;
+ case 0x1E:
+ dt_dive->dc.model = strdup("Aladin Sport");
+ break;
+ case 0x1F:
+ dt_dive->dc.model = strdup("Aladin Pro");
+ break;
+ case 0x34:
+ dt_dive->dc.model = strdup("Aladin Air X");
+ break;
+ case 0x3D:
+ dt_dive->dc.model = strdup("Spiro Monitor 2 plus");
+ break;
+ case 0x3F:
+ dt_dive->dc.model = strdup("Mares Genius");
+ break;
+ case 0x44:
+ dt_dive->dc.model = strdup("Aladin Air X");
+ break;
+ case 0x48:
+ dt_dive->dc.model = strdup("Spiro Monitor 3 Air");
+ break;
+ case 0xA4:
+ dt_dive->dc.model = strdup("Aladin Air X O2");
+ break;
+ case 0xB1:
+ dt_dive->dc.model = strdup("Citizen Hyper Aqualand");
+ break;
+ case 0xB2:
+ dt_dive->dc.model = strdup("Citizen ProMaster");
+ break;
+ case 0xB3:
+ dt_dive->dc.model = strdup("Mares Guardian");
+ break;
+ case 0xBC:
+ dt_dive->dc.model = strdup("Aladin Air X Nitrox");
+ break;
+ case 0xF4:
+ dt_dive->dc.model = strdup("Aladin Air X Nitrox");
+ break;
+ case 0xFF:
+ dt_dive->dc.model = strdup("Aladin Pro Nitrox");
+ break;
+ default:
+ dt_dive->dc.model = strdup(QT_TRANSLATE_NOOP("gettextFromC", "Unknown"));
+ break;
+ }
+ if ((tmp_1byte & 0xF0) == 0xF0)
+ is_nitrox = 1;
+ if ((tmp_1byte & 0xF0) == 0xA0)
+ is_O2 = 1;
+
+ /*
+ * Air usage, unknown use. Probably allows or deny manually entering gas
+ * comsumption based on dc model - Useless for Subsurface
+ */
+ read_bytes(1);
+ if (fseek(archivo, 6, 1) != 0) // jump over 6 bytes whitout known use
+ goto bail;
+ /*
+ * Profile data length
+ */
+ read_bytes(2);
+ profile_length = tmp_2bytes;
+ if (profile_length != 0) {
+ /*
+ * 8 x 2 bytes for the tissues saturation useless for subsurface
+ * and other 6 bytes without known use
+ */
+ if (fseek(archivo, 22, 1) != 0)
+ goto bail;
+ if (is_nitrox || is_O2) {
+
+ /*
+ * CNS % (unsure) values table (only nitrox computers)
+ */
+ read_bytes(1);
+
+ /*
+ * % O2 in nitrox mix - (only nitrox and O2 computers but differents)
+ */
+ read_bytes(1);
+ if (is_nitrox) {
+ dt_dive->cylinder[0].gasmix.o2.permille =
+ (tmp_1byte & 0x0F ? 20.0 + 2 * (tmp_1byte & 0x0F) : 21.0) * 10;
+ } else {
+ dt_dive->cylinder[0].gasmix.o2.permille = tmp_1byte * 10;
+ read_bytes(1) // Jump over one byte, unknown use
+ }
+ }
+ /*
+ * profileLength = Nº bytes, need to know how many samples are there.
+ * 2bytes per sample plus another one each three samples. Also includes the
+ * bytes jumped over (22) and the nitrox (2) or O2 (3).
+ */
+ int samplenum = is_O2 ? (profile_length - 25) * 3 / 8 : (profile_length - 24) * 3 / 7;
+
+ dc->events = calloc(samplenum, sizeof(struct event));
+ dc->alloc_samples = samplenum;
+ dc->samples = 0;
+ dc->sample = calloc(samplenum, sizeof(struct sample));
+
+ dtrak_profile(dt_dive, archivo);
+ }
+ /*
+ * Initialize some dive data not supported by Datatrak/WLog
+ */
+ if (!strcmp(dt_dive->dc.model, "Manually entered dive"))
+ dt_dive->dc.deviceid = 0;
+ else
+ dt_dive->dc.deviceid = 0xffffffff;
+ create_device_node(dt_dive->dc.model, dt_dive->dc.deviceid, "", "", dt_dive->dc.model);
+ dt_dive->dc.next = NULL;
+ if (!is_SCR && dt_dive->cylinder[0].type.size.mliter) {
+ dt_dive->cylinder[0].end.mbar = dt_dive->cylinder[0].start.mbar -
+ ((dt_dive->cylinder[0].gas_used.mliter / dt_dive->cylinder[0].type.size.mliter) * 1000);
+ }
+ return true;
+
+bail:
+ return false;
+}
+
+void datatrak_import(const char *file, struct dive_table *table)
+{
+ FILE *archivo;
+ dtrakheader *fileheader = (dtrakheader *)malloc(sizeof(dtrakheader));
+ int i = 0;
+
+ if ((archivo = subsurface_fopen(file, "rb")) == NULL) {
+ report_error(translate("gettextFromC", "Error: couldn't open the file %s"), file);
+ free(fileheader);
+ return;
+ }
+
+ /*
+ * Verify fileheader, get number of dives in datatrak divelog
+ */
+ *fileheader = read_file_header(archivo);
+ while (i < fileheader->divesNum) {
+ struct dive *ptdive = alloc_dive();
+
+ if (!dt_dive_parser(archivo, ptdive)) {
+ report_error(translate("gettextFromC", "Error: no dive"));
+ free(ptdive);
+ } else {
+ record_dive(ptdive);
+ }
+ i++;
+ }
+ taglist_cleanup(&g_tag_list);
+ fclose(archivo);
+ sort_table(table);
+ free(fileheader);
+}
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-12-25 01:46:17 +0000