X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=profile.c;h=60e0f4215e2b69e481dd11501d188f36c8d64a15;hb=e38eb77e30c2d0d06eb61db0cd1bdf3f5e164e8d;hp=9952b18e3340f70be5735f3e745e73708c1e530c;hpb=7c1deb37c702ad668f40ae6a9a14cd2faf918ae4;p=ext%2Fsubsurface.git

diff --git a/profile.c b/profile.c
index 9952b18..60e0f42 100644
--- a/profile.c
+++ b/profile.c
@@ -96,6 +96,24 @@ void set_source_rgb(struct graphics_context *gc, double r, double g, double b)
 
 #define ROUND_UP(x,y) ((((x)+(y)-1)/(y))*(y))
 
+/* debugging tool - not normally used */
+static void dump_pi (struct plot_info *pi)
+{
+	int i;
+
+	printf("pi:{nr:%d maxtime:%d meandepth:%d maxdepth:%d \n"
+		"    minpressure:%d maxpressure:%d endpressure:%d mintemp:%d maxtemp:%d\n",
+		pi->nr, pi->maxtime, pi->meandepth, pi->maxdepth,
+		pi->minpressure, pi->maxpressure, pi->endpressure, pi->mintemp, pi->maxtemp);
+	for (i = 0; i < pi->nr; i++)
+		printf("    entry[%d]:{same_cylinder:%d cylinderindex:%d sec:%d pressure:{%d,%d}\n"
+			"                temperature:%d depth:%d smoothed:%d}\n",
+			i, pi->entry[i].same_cylinder, pi->entry[i].cylinderindex, pi->entry[i].sec,
+			pi->entry[i].pressure[0], pi->entry[i].pressure[1],
+			pi->entry[i].temperature, pi->entry[i].depth, pi->entry[i].smoothed);
+	printf("   }\n");
+}
+
 /*
  * When showing dive profiles, we scale things to the
  * current dive. However, we don't scale past less than
@@ -276,6 +294,7 @@ static void plot_text_samples(struct graphics_context *gc, struct plot_info *pi)
 	static const text_render_options_t deep = {14, 1.0, 0.2, 0.2, CENTER, TOP};
 	static const text_render_options_t shallow = {14, 1.0, 0.2, 0.2, CENTER, BOTTOM};
 	int i;
+	int last = -1;
 
 	for (i = 0; i < pi->nr; i++) {
 		struct plot_data *entry = pi->entry + i;
@@ -283,11 +302,18 @@ static void plot_text_samples(struct graphics_context *gc, struct plot_info *pi)
 		if (entry->depth < 2000)
 			continue;
 
-		if (entry == entry->max[2])
+		if ((entry == entry->max[2]) && entry->depth != last) {
 			render_depth_sample(gc, entry, &deep);
+			last = entry->depth;
+		}
 
-		if (entry == entry->min[2])
+		if ((entry == entry->min[2]) && entry->depth != last) {
 			render_depth_sample(gc, entry, &shallow);
+			last = entry->depth;
+		}
+
+		if (entry->depth != last)
+			last = -1;
 	}
 }
 
@@ -485,19 +511,13 @@ static int setup_temperature_limits(struct graphics_context *gc, struct plot_inf
 
 static void plot_single_temp_text(struct graphics_context *gc, int sec, int mkelvin)
 {
-	int deg;
+	double deg;
 	const char *unit;
 	static const text_render_options_t tro = {12, 0.2, 0.2, 1.0, LEFT, TOP};
-	temperature_t temperature = { mkelvin };
 
-	if (output_units.temperature == FAHRENHEIT) {
-		deg = to_F(temperature);
-		unit = UTF8_DEGREE "F";
-	} else {
-		deg = to_C(temperature);
-		unit = UTF8_DEGREE "C";
-	}
-	plot_text(gc, &tro, sec, temperature.mkelvin, "%d%s", deg, unit);
+	deg = get_temp_units(mkelvin, &unit);
+
+	plot_text(gc, &tro, sec, mkelvin, "%d%s", (int)(deg + 0.5), unit);
 }
 
 static void plot_temperature_text(struct graphics_context *gc, struct plot_info *pi)
@@ -617,32 +637,13 @@ static void plot_cylinder_pressure(struct graphics_context *gc, struct plot_info
 	plot_pressure_helper(gc, pi, INTERPOLATED_PR);
 }
 
-static int mbar_to_PSI(int mbar)
-{
-	pressure_t p = {mbar};
-	return to_PSI(p);
-}
-
 static void plot_pressure_value(struct graphics_context *gc, int mbar, int sec,
 				int xalign, int yalign)
 {
 	int pressure;
 	const char *unit;
 
-	switch (output_units.pressure) {
-	case PASCAL:
-		pressure = mbar * 100;
-		unit = "pascal";
-		break;
-	case BAR:
-		pressure = (mbar + 500) / 1000;
-		unit = "bar";
-		break;
-	case PSI:
-		pressure = mbar_to_PSI(mbar);
-		unit = "psi";
-		break;
-	}
+	pressure = get_pressure_units(mbar, &unit);
 	text_render_options_t tro = {10, 0.2, 1.0, 0.2, xalign, yalign};
 	plot_text(gc, &tro, sec, mbar, "%d %s", pressure, unit);
 }
@@ -659,8 +660,10 @@ static void plot_cylinder_pressure_text(struct graphics_context *gc, struct plot
 	if (!get_cylinder_pressure_range(gc, pi))
 		return;
 
-	/* only loop over the actual events from the dive computer */
-	for (i = 2; i < pi->nr - 2; i++) {
+	/* only loop over the actual events from the dive computer
+	 * plus the second synthetic event at the start (to make sure
+	 * we get "time=0" right) */
+	for (i = 1; i < pi->nr; i++) {
 		entry = pi->entry + i;
 
 		if (!entry->same_cylinder) {
@@ -887,8 +890,10 @@ static void fill_missing_tank_pressures(struct dive *dive, struct plot_info *pi,
 	for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) {
 		cur_pr[cyl] = track_pr[cyl]->start;
 	}
-	/* The first two and last two entries are "fillers" */
-	for (i = 2; i < pi->nr-2; i++) {
+
+	/* The first two are "fillers", but in case we don't have a sample
+	 * at time 0 we need to process the second of them here */
+	for (i = 1; i < pi->nr; i++) {
 		entry = pi->entry + i;
 		if (SENSOR_PRESSURE(entry)) {
 			cur_pr[entry->cylinderindex] = SENSOR_PRESSURE(entry);
@@ -927,7 +932,8 @@ static void fill_missing_tank_pressures(struct dive *dive, struct plot_info *pi,
 				INTERPOLATED_PRESSURE(entry) =
 					cur_pr[entry->cylinderindex] + cur_pt * magic;
 				cur_pr[entry->cylinderindex] = INTERPOLATED_PRESSURE(entry);
-			}
+			} else
+				INTERPOLATED_PRESSURE(entry) = cur_pr[entry->cylinderindex];
 		}
 	}
 }
@@ -994,6 +1000,19 @@ static void check_gas_change_events(struct dive *dive, struct plot_info *pi)
 	set_cylinder_index(pi, i, cylinderindex, ~0u);
 }
 
+/* for computers that track gas changes through events */
+static int count_gas_change_events(struct dive *dive)
+{
+	int count = 0;
+	struct event *ev = get_next_gaschange(dive->events);
+
+	while (ev) {
+		count++;
+		ev = get_next_gaschange(ev->next);
+	}
+	return count;
+}
+
 /*
  * Create a plot-info with smoothing and ranged min/max
  *
@@ -1005,48 +1024,103 @@ static struct plot_info *create_plot_info(struct dive *dive, int nr_samples, str
 {
 	int cylinderindex = -1;
 	int lastdepth, lastindex;
-	int i, nr = nr_samples + 4, sec, cyl;
-	size_t alloc_size = plot_info_size(nr);
+	int i, pi_idx, nr, sec, cyl;
+	size_t alloc_size;
 	struct plot_info *pi;
 	pr_track_t *track_pr[MAX_CYLINDERS] = {NULL, };
 	pr_track_t *pr_track, *current;
 	gboolean missing_pr = FALSE;
 	struct plot_data *entry = NULL;
+	struct event *ev;
 
+	/* we want to potentially add synthetic plot_info elements for the gas changes */
+	nr = nr_samples + 4 + 2 * count_gas_change_events(dive);
+	alloc_size = plot_info_size(nr);
 	pi = malloc(alloc_size);
 	if (!pi)
 		return pi;
 	memset(pi, 0, alloc_size);
 	pi->nr = nr;
+	pi_idx = 2; /* the two extra events at the start */
+	/* check for gas changes before the samples start */
+	ev = get_next_gaschange(dive->events);
+	while (ev && ev->time.seconds < dive_sample->time.seconds) {
+		entry = pi->entry + pi_idx;
+		entry->sec = ev->time.seconds;
+		entry->depth = 0; /* is that always correct ? */
+		pi_idx++;
+		ev = get_next_gaschange(ev->next);
+	}
+	if (ev && ev->time.seconds == dive_sample->time.seconds) {
+		/* we already have a sample at the time of the event */
+		ev = get_next_gaschange(ev->next);
+	}
 	sec = 0;
 	lastindex = 0;
 	lastdepth = -1;
 	for (i = 0; i < nr_samples; i++) {
 		int depth;
+		int delay = 0;
 		struct sample *sample = dive_sample+i;
 
-		entry = pi->entry + i + 2;
-		sec = entry->sec = sample->time.seconds;
+		entry = pi->entry + i + pi_idx;
+		while (ev && ev->time.seconds < sample->time.seconds) {
+			/* insert two fake plot info structures for the end of
+			 * the old tank and the start of the new tank */
+			entry->sec = ev->time.seconds;
+			(entry+1)->sec = ev->time.seconds + 1;
+			/* we need a fake depth - let's interpolate */
+			if (i) {
+				entry->depth = sample->depth.mm -
+					(sample->depth.mm - (sample-1)->depth.mm) / 2;
+			} else
+				entry->depth = sample->depth.mm;
+			(entry+1)->depth = entry->depth;
+			pi_idx += 2;
+			entry = pi->entry + i + pi_idx;
+			ev = get_next_gaschange(ev->next);
+		}
+		if (ev && ev->time.seconds == sample->time.seconds) {
+			/* we already have a sample at the time of the event
+			 * just add a new one for the old tank and delay the
+			 * real even by one second (to keep time monotonous) */
+			entry->sec = ev->time.seconds;
+			entry->depth = sample->depth.mm;
+			pi_idx++;
+			entry = pi->entry + i + pi_idx;
+			ev = get_next_gaschange(ev->next);
+			delay = 1;
+		}
+		sec = entry->sec = sample->time.seconds + delay;
 		depth = entry->depth = sample->depth.mm;
 		entry->cylinderindex = sample->cylinderindex;
 		SENSOR_PRESSURE(entry) = sample->cylinderpressure.mbar;
 		entry->temperature = sample->temperature.mkelvin;
 
 		if (depth || lastdepth)
-			lastindex = i+2;
+			lastindex = i + pi_idx;
 
 		lastdepth = depth;
 		if (depth > pi->maxdepth)
 			pi->maxdepth = depth;
 	}
-
+	entry = pi->entry + i + pi_idx;
+	/* are there still unprocessed gas changes? that would be very strange */
+	while (ev) {
+		entry->sec = ev->time.seconds;
+		entry->depth = 0; /* why are there gas changes after the dive is over? */
+		pi_idx++;
+		entry = pi->entry + i + pi_idx;
+		ev = get_next_gaschange(ev->next);
+	}
+	nr = nr_samples + pi_idx - 2;
 	check_gas_change_events(dive, pi);
 
 	for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) /* initialize the start pressures */
 		track_pr[cyl] = pr_track_alloc(dive->cylinder[cyl].start.mbar, -1);
 	current = track_pr[pi->entry[2].cylinderindex];
-	for (i = 0; i < nr_samples; i++) {
-		entry = pi->entry + i + 2;
+	for (i = 0; i < nr + 1; i++) {
+		entry = pi->entry + i + 1;
 
 		entry->same_cylinder = entry->cylinderindex == cylinderindex;
 		cylinderindex = entry->cylinderindex;
@@ -1084,13 +1158,16 @@ static struct plot_info *create_plot_info(struct dive *dive, int nr_samples, str
 			pr_track->end = pr;
 		}
 	}
-	if (lastdepth)
-		lastindex = i + 2;
 	/* Fill in the last two entries with empty values but valid times */
-	i = nr_samples + 2;
+	i = nr + 2;
 	pi->entry[i].sec = sec + 20;
 	pi->entry[i+1].sec = sec + 40;
+	/* the number of actual entries - some computers have lots of
+	 * depth 0 samples at the end of a dive, we want to make sure
+	 * we have exactly one of them at the end */
 	pi->nr = lastindex+1;
+	while (pi->nr <= i+2 && pi->entry[pi->nr-1].depth > 0)
+		pi->nr++;
 	pi->maxtime = pi->entry[lastindex].sec;
 
 	pi->endpressure = pi->minpressure = dive->cylinder[0].end.mbar;
@@ -1103,6 +1180,8 @@ static struct plot_info *create_plot_info(struct dive *dive, int nr_samples, str
 	}
 	for (cyl = 0; cyl < MAX_CYLINDERS; cyl++)
 		list_free(track_pr[cyl]);
+	if (0) /* awesome for debugging - not useful otherwise */
+		dump_pi(pi);
 	return analyze_plot_info(pi);
 }