CCR code: Split profile.c into two files, with gas caluclations separate.

This patch implements a separation of the code for gas pressure
calculations from the rest of the code in profile.c. The latter
file is now split into: profile.c and gaspressures.c. The
details of the transferred functions is given at the top of
gaspressures.c. The following chnages were made:
1) dive.h: The function types of calculate_depth_to_mbar
   and depth_to_mbar were made non-static in order to make them
   available within gaspressures.c.
2) profile.c: Prototypes for the functions in gaspressures.c
   were inserted at the top of profile. Ten functions were
   transferred from profile.c to gaspressures.c
3) gaspressures.c as well as a short header, gaspressures.h
   were created.

For the gas pressure calculations for CCR dives, gaspressures.c
forms the immediate basis for further code development.

Signed-off-by: Willem Ferguson <willemferguson@zoology.up.ac.za>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 6 insertions, 5 deletions

diff --git a/profile.h b/profile.h
index 99a181e63..67e61521f 100644
--- a/profile.h
+++ b/profile.h
@@ -52,6 +52,12 @@ struct plot_data {
 	int heartbeat;
 	int bearing;
 };
+
+struct ev_select {
+	char *ev_name;
+	bool plot_ev;
+};
+
 struct plot_info calculate_max_limits_new(struct dive *dive, struct divecomputer *dc);
 void compare_samples(struct plot_data *e1, struct plot_data *e2, char *buf, int bufsize, int sum);
 struct plot_data *populate_plot_entries(struct dive *dive, struct divecomputer *dc, struct plot_info *pi);
@@ -60,11 +66,6 @@ void create_plot_info_new(struct dive *dive, struct divecomputer *dc, struct plo
 void calculate_deco_information(struct dive *dive, struct divecomputer *dc, struct plot_info *pi, bool print_mode);
 void get_plot_details_new(struct plot_info *pi, int time, struct membuffer *);
 
-struct ev_select {
-	char *ev_name;
-	bool plot_ev;
-};
-
 /*
  * When showing dive profiles, we scale things to the
  * current dive. However, we don't scale past less than