// SPDX-License-Identifier: GPL-2.0 #ifndef DIVE_H #define DIVE_H // dive and dive computer related structures and helpers #include #include #include #include #include #include #include #include #include #include "divesite.h" #include #include #include #include "sha1.h" #include "units.h" #ifdef __cplusplus extern "C" { #endif extern int last_xml_version; enum divemode_t {OC, CCR, PSCR, FREEDIVE, NUM_DIVEMODE, UNDEF_COMP_TYPE}; // Flags (Open-circuit and Closed-circuit-rebreather) for setting dive computer type enum cylinderuse {OC_GAS, DILUENT, OXYGEN, NOT_USED, NUM_GAS_USE}; // The different uses for cylinders extern const char *cylinderuse_text[]; extern const char *divemode_text_ui[]; extern const char *divemode_text[]; // o2 == 0 && he == 0 -> air // o2 < 0 -> invalid struct gasmix { fraction_t o2; fraction_t he; }; static const struct gasmix gasmix_invalid = { { -1 }, { -1 } }; static const struct gasmix gasmix_air = { { 0 }, { 0 } }; typedef struct { volume_t size; pressure_t workingpressure; const char *description; /* "LP85", "AL72", "AL80", "HP100+" or whatever */ } cylinder_type_t; typedef struct { cylinder_type_t type; struct gasmix gasmix; pressure_t start, end, sample_start, sample_end; depth_t depth; bool manually_added; volume_t gas_used; volume_t deco_gas_used; enum cylinderuse cylinder_use; bool bestmix_o2; bool bestmix_he; } cylinder_t; typedef struct { weight_t weight; const char *description; /* "integrated", "belt", "ankle" */ } weightsystem_t; struct icd_data { // This structure provides communication between function isobaric_counterdiffusion() and the calling software. int dN2; // The change in fraction (permille) of nitrogen during the change int dHe; // The change in fraction (permille) of helium during the change }; extern bool isobaric_counterdiffusion(struct gasmix oldgasmix, struct gasmix newgasmix, struct icd_data *results); /* * Events are currently based straight on what libdivecomputer gives us. * We need to wrap these into our own events at some point to remove some of the limitations. */ struct event { struct event *next; duration_t time; int type; /* This is the annoying libdivecomputer format. */ int flags, value; /* .. and this is our "extended" data for some event types */ union { enum divemode_t divemode; // for divemode change events /* * NOTE! The index may be -1, which means "unknown". In that * case, the get_cylinder_index() function will give the best * match with the cylinders in the dive based on gasmix. */ struct { // for gas switch events int index; struct gasmix mix; } gas; }; bool deleted; char name[]; }; extern int event_is_gaschange(const struct event *ev); extern int get_pressure_units(int mb, const char **units); extern double get_depth_units(int mm, int *frac, const char **units); extern double get_volume_units(unsigned int ml, int *frac, const char **units); extern double get_temp_units(unsigned int mk, const char **units); extern double get_weight_units(unsigned int grams, int *frac, const char **units); extern double get_vertical_speed_units(unsigned int mms, int *frac, const char **units); extern depth_t units_to_depth(double depth); extern int units_to_sac(double volume); /* Volume in mliter of a cylinder at pressure 'p' */ extern int gas_volume(const cylinder_t *cyl, pressure_t p); extern double gas_compressibility_factor(struct gasmix gas, double bar); extern double isothermal_pressure(struct gasmix gas, double p1, int volume1, int volume2); extern double gas_density(struct gasmix gas, int pressure); extern int same_gasmix(struct gasmix a, struct gasmix b); static inline int get_o2(struct gasmix mix) { return mix.o2.permille ?: O2_IN_AIR; } static inline int get_he(struct gasmix mix) { return mix.he.permille; } struct gas_pressures { double o2, n2, he; }; extern void fill_pressures(struct gas_pressures *pressures, const double amb_pressure, struct gasmix mix, double po2, enum divemode_t dctype); extern void sanitize_gasmix(struct gasmix *mix); extern int gasmix_distance(struct gasmix a, struct gasmix b); extern int find_best_gasmix_match(struct gasmix mix, const cylinder_t array[], unsigned int used); extern bool gasmix_is_air(struct gasmix gasmix); /* Linear interpolation between 'a' and 'b', when we are 'part'way into the 'whole' distance from a to b */ static inline int interpolate(int a, int b, int part, int whole) { /* It is doubtful that we actually need floating point for this, but whatever */ if (whole) { double x = (double)a * (whole - part) + (double)b * part; return (int)lrint(x / whole); } return (a+b)/2; } void get_gas_string(struct gasmix gasmix, char *text, int len); const char *gasname(struct gasmix gasmix); #define MAX_SENSORS 2 struct sample // BASE TYPE BYTES UNITS RANGE DESCRIPTION { // --------- ----- ----- ----- ----------- duration_t time; // int32_t 4 seconds (0-34 yrs) elapsed dive time up to this sample duration_t stoptime; // int32_t 4 seconds (0-34 yrs) time duration of next deco stop duration_t ndl; // int32_t 4 seconds (-1 no val, 0-34 yrs) time duration before no-deco limit duration_t tts; // int32_t 4 seconds (0-34 yrs) time duration to reach the surface duration_t rbt; // int32_t 4 seconds (0-34 yrs) remaining bottom time depth_t depth; // int32_t 4 mm (0-2000 km) dive depth of this sample depth_t stopdepth; // int32_t 4 mm (0-2000 km) depth of next deco stop temperature_t temperature; // uint32_t 4 mdegrK (0-4 MdegK) ambient temperature pressure_t pressure[MAX_SENSORS]; // int32_t 4 mbar (0-2 Mbar) cylinder pressures (main and CCR o2) o2pressure_t setpoint; // uint16_t 2 mbar (0-65 bar) O2 partial pressure (will be setpoint) o2pressure_t o2sensor[3]; // uint16_t 6 mbar (0-65 bar) Up to 3 PO2 sensor values (rebreather) bearing_t bearing; // int16_t 2 degrees (-1 no val, 0-360 deg) compass bearing uint8_t sensor[MAX_SENSORS]; // uint8_t 1 sensorID (0-255) ID of cylinder pressure sensor uint16_t cns; // uint16_t 1 % (0-64k %) cns% accumulated uint8_t heartbeat; // uint8_t 1 beats/m (0-255) heart rate measurement volume_t sac; // 4 ml/min predefined SAC bool in_deco; // bool 1 y/n y/n this sample is part of deco bool manually_entered; // bool 1 y/n y/n this sample was entered by the user, // not calculated when planning a dive }; // Total size of structure: 57 bytes, excluding padding at end struct divetag { /* * The name of the divetag. If a translation is available, name contains * the translated tag */ char *name; /* * If a translation is available, we write the original tag to source. * This enables us to write a non-localized tag to the xml file. */ char *source; }; struct tag_entry { struct divetag *tag; struct tag_entry *next; }; /* * divetags are only stored once, each dive only contains * a list of tag_entries which then point to the divetags * in the global g_tag_list */ extern struct tag_entry *g_tag_list; struct divetag *taglist_add_tag(struct tag_entry **tag_list, const char *tag); struct tag_entry *taglist_added(struct tag_entry *original_list, struct tag_entry *new_list); void dump_taglist(const char *intro, struct tag_entry *tl); /* * Writes all divetags form tag_list into internally allocated buffer * Function returns pointer to allocated buffer * Buffer contains comma separated list of tags names or null terminated string * * NOTE! The returned buffer must be freed once used. */ char *taglist_get_tagstring(struct tag_entry *tag_list); /* cleans up a list: removes empty tags and duplicates */ void taglist_cleanup(struct tag_entry **tag_list); void taglist_init_global(); void taglist_free(struct tag_entry *tag_list); bool taglist_contains(struct tag_entry *tag_list, const char *tag); int count_dives_with_tag(const char *tag); int count_dives_with_person(const char *person); int count_dives_with_location(const char *location); int count_dives_with_suit(const char *suit); struct extra_data { const char *key; const char *value; struct extra_data *next; }; /* * NOTE! The deviceid and diveid are model-specific *hashes* of * whatever device identification that model may have. Different * dive computers will have different identifying data, it could * be a firmware number or a serial ID (in either string or in * numeric format), and we do not care. * * The only thing we care about is that subsurface will hash * that information the same way. So then you can check the ID * of a dive computer by comparing the hashes for equality. * * A deviceid or diveid of zero is assumed to be "no ID". */ struct divecomputer { timestamp_t when; duration_t duration, surfacetime, last_manual_time; depth_t maxdepth, meandepth; temperature_t airtemp, watertemp; pressure_t surface_pressure; enum divemode_t divemode; // dive computer type: OC(default) or CCR uint8_t no_o2sensors; // rebreathers: number of O2 sensors used int salinity; // kg per 10000 l const char *model, *serial, *fw_version; uint32_t deviceid, diveid; int samples, alloc_samples; struct sample *sample; struct event *events; struct extra_data *extra_data; struct divecomputer *next; }; #define MAX_CYLINDERS (20) #define MAX_WEIGHTSYSTEMS (6) #define MAX_TANK_INFO (100) #define MAX_WS_INFO (100) #define W_IDX_PRIMARY 0 #define W_IDX_SECONDARY 1 typedef enum { TF_NONE, NO_TRIP, IN_TRIP, ASSIGNED_TRIP, NUM_TRIPFLAGS } tripflag_t; typedef struct dive_trip { timestamp_t when; char *location; char *notes; struct dive *dives; int nrdives; /* Used by the io-routines to mark trips that have already been written. */ bool saved; unsigned expanded : 1, selected : 1, autogen : 1, fixup : 1; struct dive_trip *next; } dive_trip_t; /* List of dive trips (sorted by date) */ extern dive_trip_t *dive_trip_list; struct picture; struct dive { int number; tripflag_t tripflag; dive_trip_t *divetrip; struct dive *next, **pprev; bool selected; bool hidden_by_filter; timestamp_t when; uint32_t dive_site_uuid; char *notes; char *divemaster, *buddy; int rating; int visibility; /* 0 - 5 star rating */ cylinder_t cylinder[MAX_CYLINDERS]; weightsystem_t weightsystem[MAX_WEIGHTSYSTEMS]; char *suit; int sac, otu, cns, maxcns; /* Calculated based on dive computer data */ temperature_t mintemp, maxtemp, watertemp, airtemp; depth_t maxdepth, meandepth; pressure_t surface_pressure; duration_t duration; int salinity; // kg per 10000 l struct tag_entry *tag_list; struct divecomputer dc; int id; // unique ID for this dive struct picture *picture_list; unsigned char git_id[20]; }; extern void invalidate_dive_cache(struct dive *dive); extern bool dive_cache_is_valid(const struct dive *dive); extern int get_cylinder_idx_by_use(const struct dive *dive, enum cylinderuse cylinder_use_type); extern void cylinder_renumber(struct dive *dive, int mapping[]); extern int same_gasmix_cylinder(cylinder_t *cyl, int cylid, struct dive *dive, bool check_unused); /* when selectively copying dive information, which parts should be copied? */ struct dive_components { unsigned int divesite : 1; unsigned int notes : 1; unsigned int divemaster : 1; unsigned int buddy : 1; unsigned int suit : 1; unsigned int rating : 1; unsigned int visibility : 1; unsigned int tags : 1; unsigned int cylinders : 1; unsigned int weights : 1; }; extern enum divemode_t get_current_divemode(const struct divecomputer *dc, int time, const struct event **evp, enum divemode_t *divemode); extern struct event *get_next_divemodechange(const struct event **evd, bool update_pointer); extern enum divemode_t get_divemode_at_time(const struct divecomputer *dc, int dtime, const struct event **ev_dmc); /* picture list and methods related to dive picture handling */ struct picture { char *filename; offset_t offset; location_t location; struct picture *next; }; #define FOR_EACH_PICTURE(_dive) \ if (_dive) \ for (struct picture *picture = (_dive)->picture_list; picture; picture = picture->next) #define FOR_EACH_PICTURE_NON_PTR(_divestruct) \ for (struct picture *picture = (_divestruct).picture_list; picture; picture = picture->next) extern struct picture *alloc_picture(); extern void free_picture(struct picture *picture); extern bool dive_check_picture_time(const struct dive *d, int shift_time, timestamp_t timestamp); extern void dive_create_picture(struct dive *d, const char *filename, int shift_time, bool match_all); extern void dive_add_picture(struct dive *d, struct picture *newpic); extern bool dive_remove_picture(struct dive *d, const char *filename); extern unsigned int dive_get_picture_count(struct dive *d); extern bool picture_check_valid_time(timestamp_t timestamp, int shift_time); extern void dive_set_geodata_from_picture(struct dive *d, struct picture *pic); extern void picture_free(struct picture *picture); extern bool has_gaschange_event(const struct dive *dive, const struct divecomputer *dc, int idx); extern int explicit_first_cylinder(const struct dive *dive, const struct divecomputer *dc); extern int get_depth_at_time(const struct divecomputer *dc, unsigned int time); extern fraction_t best_o2(depth_t depth, const struct dive *dive); extern fraction_t best_he(depth_t depth, const struct dive *dive); extern int get_surface_pressure_in_mbar(const struct dive *dive, bool non_null); extern int calculate_depth_to_mbar(int depth, pressure_t surface_pressure, int salinity); extern int depth_to_mbar(int depth, const struct dive *dive); extern double depth_to_bar(int depth, const struct dive *dive); extern double depth_to_atm(int depth, const struct dive *dive); extern int rel_mbar_to_depth(int mbar, const struct dive *dive); extern int mbar_to_depth(int mbar, const struct dive *dive); extern depth_t gas_mod(struct gasmix mix, pressure_t po2_limit, const struct dive *dive, int roundto); extern depth_t gas_mnd(struct gasmix mix, depth_t end, const struct dive *dive, int roundto); #define SURFACE_THRESHOLD 750 /* somewhat arbitrary: only below 75cm is it really diving */ extern bool autogroup; /* random threashold: three days without diving -> new trip * this works very well for people who usually dive as part of a trip and don't * regularly dive at a local facility; this is why trips are an optional feature */ #define TRIP_THRESHOLD 3600 * 24 * 3 #define UNGROUPED_DIVE(_dive) ((_dive)->tripflag == NO_TRIP) #define DIVE_IN_TRIP(_dive) ((_dive)->tripflag == IN_TRIP || (_dive)->tripflag == ASSIGNED_TRIP) #define DIVE_NEEDS_TRIP(_dive) ((_dive)->tripflag == TF_NONE) extern void add_dive_to_trip(struct dive *, dive_trip_t *); struct dive *unregister_dive(int idx); extern void delete_single_dive(int idx); extern int dive_get_insertion_index(struct dive *dive); extern void add_single_dive(int idx, struct dive *dive); extern void insert_trip(dive_trip_t **trip); extern void insert_trip_dont_merge(dive_trip_t *trip); extern void unregister_trip(dive_trip_t *trip); extern void free_trip(dive_trip_t *trip); extern const struct units SI_units, IMPERIAL_units; extern const struct units *get_units(void); extern int run_survey, verbose, quit, force_root; struct dive_table { int nr, allocated; struct dive **dives; }; extern struct dive_table dive_table, downloadTable; extern struct dive displayed_dive; extern unsigned int dc_number; extern struct dive *current_dive; #define current_dc (get_dive_dc(current_dive, dc_number)) #define displayed_dc (get_dive_dc(&displayed_dive, dc_number)) extern struct dive *get_dive(int nr); extern struct dive *get_dive_from_table(int nr, struct dive_table *dt); extern struct dive_site *get_dive_site_for_dive(const struct dive *dive); extern const char *get_dive_country(const struct dive *dive); extern const char *get_dive_location(const struct dive *dive); extern unsigned int number_of_computers(const struct dive *dive); extern struct divecomputer *get_dive_dc(struct dive *dive, int nr); extern timestamp_t dive_endtime(const struct dive *dive); extern void make_first_dc(void); extern unsigned int count_divecomputers(void); extern void delete_current_divecomputer(void); /* * Iterate over each dive, with the first parameter being the index * iterator variable, and the second one being the dive one. * * I don't think anybody really wants the index, and we could make * it local to the for-loop, but that would make us requires C99. */ #define for_each_dive(_i, _x) \ for ((_i) = 0; ((_x) = get_dive(_i)) != NULL; (_i)++) #define for_each_dc(_dive, _dc) \ for (_dc = &_dive->dc; _dc; _dc = _dc->next) #define for_each_gps_location(_i, _x) \ for ((_i) = 0; ((_x) = get_gps_location(_i, &gps_location_table)) != NULL; (_i)++) #ifdef __cplusplus extern "C" { #endif extern struct dive *get_dive_by_uniq_id(int id); extern int get_idx_by_uniq_id(int id); extern bool dive_site_has_gps_location(const struct dive_site *ds); extern int dive_has_gps_location(const struct dive *dive); extern int report_error(const char *fmt, ...); extern void set_error_cb(void(*cb)(char *)); // Callback takes ownership of passed string extern struct dive *find_dive_including(timestamp_t when); extern bool dive_within_time_range(struct dive *dive, timestamp_t when, timestamp_t offset); extern bool time_during_dive_with_offset(struct dive *dive, timestamp_t when, timestamp_t offset); struct dive *find_dive_n_near(timestamp_t when, int n, timestamp_t offset); /* Check if two dive computer entries are the exact same dive (-1=no/0=maybe/1=yes) */ extern int match_one_dc(const struct divecomputer *a, const struct divecomputer *b); extern void parse_xml_init(void); extern int parse_xml_buffer(const char *url, const char *buf, int size, struct dive_table *table, const char **params); extern void parse_xml_exit(void); extern void set_filename(const char *filename); extern int parse_dm4_buffer(sqlite3 *handle, const char *url, const char *buf, int size, struct dive_table *table); extern int parse_dm5_buffer(sqlite3 *handle, const char *url, const char *buf, int size, struct dive_table *table); extern int parse_shearwater_buffer(sqlite3 *handle, const char *url, const char *buf, int size, struct dive_table *table); extern int parse_cobalt_buffer(sqlite3 *handle, const char *url, const char *buf, int size, struct dive_table *table); extern int parse_divinglog_buffer(sqlite3 *handle, const char *url, const char *buf, int size, struct dive_table *table); extern int parse_dlf_buffer(unsigned char *buffer, size_t size, struct dive_table *table); extern int parse_file(const char *filename, struct dive_table *table); extern int save_dives(const char *filename); extern int save_dives_logic(const char *filename, bool select_only, bool anonymize); extern int save_dive(FILE *f, struct dive *dive, bool anonymize); extern int export_dives_xslt(const char *filename, const bool selected, const int units, const char *export_xslt, bool anonymize); struct membuffer; extern void save_one_dive_to_mb(struct membuffer *b, struct dive *dive, bool anonymize); int cylinderuse_from_text(const char *text); struct user_info { char *name; char *email; }; extern void subsurface_user_info(struct user_info *); extern int subsurface_rename(const char *path, const char *newpath); extern int subsurface_dir_rename(const char *path, const char *newpath); extern int subsurface_open(const char *path, int oflags, mode_t mode); extern FILE *subsurface_fopen(const char *path, const char *mode); extern void *subsurface_opendir(const char *path); extern int subsurface_access(const char *path, int mode); extern int subsurface_stat(const char* path, struct stat* buf); extern struct zip *subsurface_zip_open_readonly(const char *path, int flags, int *errorp); extern int subsurface_zip_close(struct zip *zip); extern void subsurface_console_init(void); extern void subsurface_console_exit(void); extern bool subsurface_user_is_root(void); extern timestamp_t get_times(); extern xsltStylesheetPtr get_stylesheet(const char *name); extern timestamp_t utc_mktime(struct tm *tm); extern void utc_mkdate(timestamp_t, struct tm *tm); extern struct dive *alloc_dive(void); extern void free_dive(struct dive *); extern void record_dive_to_table(struct dive *dive, struct dive_table *table); extern void record_dive(struct dive *dive); extern void clear_dive(struct dive *dive); extern void copy_dive(const struct dive *s, struct dive *d); extern void selective_copy_dive(const struct dive *s, struct dive *d, struct dive_components what, bool clear); extern struct dive *clone_dive(struct dive *s); extern void alloc_samples(struct divecomputer *dc, int num); extern void free_samples(struct divecomputer *dc); extern struct sample *prepare_sample(struct divecomputer *dc); extern void finish_sample(struct divecomputer *dc); extern struct sample *add_sample(const struct sample *sample, int time, struct divecomputer *dc); extern void add_sample_pressure(struct sample *sample, int sensor, int mbar); extern int legacy_format_o2pressures(const struct dive *dive, const struct divecomputer *dc); extern bool dive_less_than(const struct dive *a, const struct dive *b); extern void sort_table(struct dive_table *table); extern struct dive *fixup_dive(struct dive *dive); extern void fixup_dc_duration(struct divecomputer *dc); extern int dive_getUniqID(); extern unsigned int dc_airtemp(const struct divecomputer *dc); extern unsigned int dc_watertemp(const struct divecomputer *dc); extern int split_dive_dont_insert(const struct dive *dive, struct dive **new1, struct dive **new2); extern void split_dive(struct dive *); extern int split_dive_at_time_dont_insert(const struct dive *dive, duration_t time, struct dive **new1, struct dive **new2); extern void split_dive_at_time(struct dive *dive, duration_t time); extern struct dive *merge_dives(const struct dive *a, const struct dive *b, int offset, bool prefer_downloaded, struct dive_trip **trip); extern struct dive *try_to_merge(struct dive *a, struct dive *b, bool prefer_downloaded); extern struct event *clone_event(const struct event *src_ev); extern void copy_events(const struct divecomputer *s, struct divecomputer *d); extern void free_events(struct event *ev); extern void copy_cylinders(const struct dive *s, struct dive *d, bool used_only); extern void copy_samples(const struct divecomputer *s, struct divecomputer *d); extern bool is_cylinder_used(const struct dive *dive, int idx); extern bool is_cylinder_prot(const struct dive *dive, int idx); extern void fill_default_cylinder(cylinder_t *cyl); extern void add_gas_switch_event(struct dive *dive, struct divecomputer *dc, int time, int idx); extern struct event *add_event(struct divecomputer *dc, unsigned int time, int type, int flags, int value, const char *name); extern void remove_event(struct event *event); extern void update_event_name(struct dive *d, struct event *event, const char *name); extern void add_extra_data(struct divecomputer *dc, const char *key, const char *value); extern void per_cylinder_mean_depth(const struct dive *dive, struct divecomputer *dc, int *mean, int *duration); extern int get_cylinder_index(const struct dive *dive, const struct event *ev); extern struct gasmix get_gasmix_from_event(const struct dive *, const struct event *ev); extern int nr_cylinders(const struct dive *dive); extern int nr_weightsystems(const struct dive *dive); /* UI related protopypes */ // extern void report_error(GError* error); extern void add_cylinder_description(cylinder_type_t *); extern void add_weightsystem_description(weightsystem_t *); extern void remember_event(const char *eventname); extern void invalidate_dive_cache(struct dive *dc); #if WE_DONT_USE_THIS /* this is a missing feature in Qt - selecting which events to display */ extern int evn_foreach(void (*callback)(const char *, bool *, void *), void *data); #endif /* WE_DONT_USE_THIS */ extern void clear_events(void); extern void set_dc_nickname(struct dive *dive); extern void set_autogroup(bool value); extern int total_weight(const struct dive *); #ifdef __cplusplus } #endif #define DIVE_ERROR_PARSE 1 #define DIVE_ERROR_PLAN 2 const char *monthname(int mon); #define UTF8_DEGREE "\xc2\xb0" #define UTF8_DELTA "\xce\x94" #define UTF8_UPWARDS_ARROW "\xE2\x86\x91" #define UTF8_DOWNWARDS_ARROW "\xE2\x86\x93" #define UTF8_AVERAGE "\xc3\xb8" #define UTF8_SUBSCRIPT_2 "\xe2\x82\x82" #define UTF8_WHITESTAR "\xe2\x98\x86" #define UTF8_BLACKSTAR "\xe2\x98\x85" extern const char *existing_filename; extern void subsurface_command_line_init(int *, char ***); extern void subsurface_command_line_exit(int *, char ***); #define FRACTION(n, x) ((unsigned)(n) / (x)), ((unsigned)(n) % (x)) #define DECOTIMESTEP 60 /* seconds. Unit of deco stop times */ struct deco_state { double tissue_n2_sat[16]; double tissue_he_sat[16]; double tolerated_by_tissue[16]; double tissue_inertgas_saturation[16]; double buehlmann_inertgas_a[16]; double buehlmann_inertgas_b[16]; double max_n2_crushing_pressure[16]; double max_he_crushing_pressure[16]; double crushing_onset_tension[16]; // total inert gas tension in the t* moment double n2_regen_radius[16]; // rs double he_regen_radius[16]; double max_ambient_pressure; // last moment we were descending double bottom_n2_gradient[16]; double bottom_he_gradient[16]; double initial_n2_gradient[16]; double initial_he_gradient[16]; pressure_t first_ceiling_pressure; pressure_t max_bottom_ceiling_pressure; int ci_pointing_to_guiding_tissue; double gf_low_pressure_this_dive; int deco_time; bool icd_warning; }; extern void add_segment(struct deco_state *ds, double pressure, struct gasmix gasmix, int period_in_seconds, int setpoint, enum divemode_t divemode, int sac); extern void clear_deco(struct deco_state *ds, double surface_pressure); extern void dump_tissues(struct deco_state *ds); extern void set_gf(short gflow, short gfhigh); extern void set_vpmb_conservatism(short conservatism); extern void cache_deco_state(struct deco_state *source, struct deco_state **datap); extern void restore_deco_state(struct deco_state *data, struct deco_state *target, bool keep_vpmb_state); extern void nuclear_regeneration(struct deco_state *ds, double time); extern void vpmb_start_gradient(struct deco_state *ds); extern void vpmb_next_gradient(struct deco_state *ds, double deco_time, double surface_pressure); extern double tissue_tolerance_calc(struct deco_state *ds, const struct dive *dive, double pressure); /* this should be converted to use our types */ struct divedatapoint { int time; depth_t depth; int cylinderid; pressure_t minimum_gas; int setpoint; bool entered; struct divedatapoint *next; enum divemode_t divemode; }; struct diveplan { timestamp_t when; int surface_pressure; /* mbar */ int bottomsac; /* ml/min */ int decosac; /* ml/min */ int salinity; short gflow; short gfhigh; short vpmb_conservatism; struct divedatapoint *dp; int eff_gflow, eff_gfhigh; int surface_interval; }; struct divedatapoint *plan_add_segment(struct diveplan *diveplan, int duration, int depth, int cylinderid, int po2, bool entered, enum divemode_t divemode); struct divedatapoint *create_dp(int time_incr, int depth, int cylinderid, int po2); #if DEBUG_PLAN void dump_plan(struct diveplan *diveplan); #endif struct decostop { int depth; int time; }; extern bool plan(struct deco_state *ds, struct diveplan *diveplan, struct dive *dive, int timestep, struct decostop *decostoptable, struct deco_state **cached_datap, bool is_planner, bool show_disclaimer); extern void calc_crushing_pressure(struct deco_state *ds, double pressure); extern void vpmb_start_gradient(struct deco_state *ds); extern void clear_vpmb_state(struct deco_state *ds); extern void printdecotable(struct decostop *table); /* Since C doesn't have parameter-based overloading, two versions of get_next_event. */ extern const struct event *get_next_event(const struct event *event, const char *name); extern struct event *get_next_event_mutable(struct event *event, const char *name); /* Get gasmixes at increasing timestamps. * In "evp", pass a pointer to a "struct event *" which is NULL-initialized on first invocation. * On subsequent calls, pass the same "evp" and the "gasmix" from previous calls. */ extern struct gasmix get_gasmix(const struct dive *dive, const struct divecomputer *dc, int time, const struct event **evp, struct gasmix gasmix); /* Get gasmix at a given time */ extern struct gasmix get_gasmix_at_time(const struct dive *dive, const struct divecomputer *dc, duration_t time); /* these structs holds the information that * describes the cylinders / weight systems. * they are global variables initialized in equipment.c * used to fill the combobox in the add/edit cylinder * dialog */ struct tank_info_t { const char *name; int cuft, ml, psi, bar; }; extern struct tank_info_t tank_info[MAX_TANK_INFO]; struct ws_info_t { const char *name; int grams; }; extern struct ws_info_t ws_info[MAX_WS_INFO]; extern bool cylinder_nodata(const cylinder_t *cyl); extern bool cylinder_none(const cylinder_t *cyl); extern bool weightsystem_none(const weightsystem_t *ws); extern void remove_cylinder(struct dive *dive, int idx); extern void remove_weightsystem(struct dive *dive, int idx); extern void reset_cylinders(struct dive *dive, bool track_gas); #ifdef DEBUG_CYL extern void dump_cylinders(struct dive *dive, bool verbose); #endif extern void set_informational_units(const char *units); extern void set_git_prefs(const char *prefs); extern char *get_dive_date_c_string(timestamp_t when); extern void update_setpoint_events(const struct dive *dive, struct divecomputer *dc); #ifdef __cplusplus } #endif extern weight_t string_to_weight(const char *str); extern depth_t string_to_depth(const char *str); extern pressure_t string_to_pressure(const char *str); extern volume_t string_to_volume(const char *str, pressure_t workp); extern fraction_t string_to_fraction(const char *str); extern void average_max_depth(struct diveplan *dive, int *avg_depth, int *max_depth); #include "pref.h" #endif // DIVE_H