X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=profile.c;h=270a04177e6957ad7e5dc1bb53724e7fb322f4d7;hb=067506038a5fea72e60680513d768f89722671fd;hp=9443130d29814f50c53f1ed609eea507f5f790d8;hpb=2d9ac73e380ea0863119ddca4c72ea4d96327465;p=ext%2Fsubsurface.git

diff --git a/profile.c b/profile.c
index 9443130..270a041 100644
--- a/profile.c
+++ b/profile.c
@@ -32,8 +32,8 @@ struct plot_info {
 		int sec;
 		int val;
 		int smoothed;
-		int min[3];
-		int max[3];
+		struct plot_data *min[3];
+		struct plot_data *max[3];
 		int avg[3];
 	} entry[];
 };
@@ -129,10 +129,10 @@ static void plot_text(struct graphics_context *gc, const text_render_options_t *
 	cairo_show_text(cr, buffer);
 }
 
-static void render_depth_sample(struct graphics_context *gc, struct sample *sample, const text_render_options_t *tro)
+static void render_depth_sample(struct graphics_context *gc, struct plot_data *entry, const text_render_options_t *tro)
 {
-	int sec = sample->time.seconds;
-	depth_t depth = sample->depth;
+	int sec = entry->sec;
+	depth_t depth = { entry->val };
 	const char *fmt;
 	double d;
 
@@ -149,76 +149,28 @@ static void render_depth_sample(struct graphics_context *gc, struct sample *samp
 	plot_text(gc, tro, sec, depth.mm, fmt, d);
 }
 
-/*
- * Find the next minimum/maximum point.
- *
- * We exit early if we hit "enough" of a depth reversal,
- * which is roughly 10 feet.
- */
-static struct sample *next_minmax(struct sample *sample, struct sample *end, int minmax)
-{
-	const int enough = 3000;
-	struct sample *result;
-	int depthlimit;
-
-	if (sample >= end)
-		return 0;
-
-	depthlimit = sample->depth.mm;
-	result = NULL;
-
-	for (;;) {
-		int depth;
-
-		sample++;
-		if (sample >= end)
-			return NULL;
-		depth = sample->depth.mm;
-
-		if (minmax) {
-			if (depth <= depthlimit) {
-				if (depthlimit - depth > enough)
-					break;
-				continue;
-			}
-		} else {
-			if (depth >= depthlimit) {
-				if (depth - depthlimit > enough)
-					break;
-				continue;
-			}
-		}
-
-		result = sample;
-		depthlimit = depth;
-	}
-	return result;
-}
-
-static void plot_text_samples(struct graphics_context *gc, struct sample *a, struct sample *b)
+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;
 
-	for (;;) {
-		if (b <= a)
-			break;
-		a = next_minmax(a, b, 1);
-		if (!a)
-			break;
-		render_depth_sample(gc, a, &deep);
-		a = next_minmax(a, b, 0);
-		if (!a)
-			break;
-		if (a->depth.mm < 2500)
+	for (i = 0; i < pi->nr; i++) {
+		struct plot_data *entry = pi->entry + i;
+
+		if (entry->val < 2000)
 			continue;
-		render_depth_sample(gc, a, &shallow);
+
+		if (entry == entry->max[2])
+			render_depth_sample(gc, entry, &deep);
+
+		if (entry == entry->min[2])
+			render_depth_sample(gc, entry, &shallow);
 	}
 }
 
-static void plot_depth_text(struct dive *dive, struct graphics_context *gc)
+static void plot_depth_text(struct dive *dive, struct graphics_context *gc, struct plot_info *pi)
 {
-	struct sample *sample, *end;
 	int maxtime, maxdepth;
 
 	/* Get plot scaling limits */
@@ -228,10 +180,48 @@ static void plot_depth_text(struct dive *dive, struct graphics_context *gc)
 	gc->scalex = maxtime;
 	gc->scaley = maxdepth;
 
-	sample = dive->sample;
-	end = dive->sample + dive->samples;
+	plot_text_samples(gc, pi);
+}
 
-	plot_text_samples(gc, sample, end);
+static void plot_smoothed_profile(struct graphics_context *gc, struct plot_info *pi)
+{
+	int i;
+	struct plot_data *entry = pi->entry;
+
+	cairo_set_source_rgba(gc->cr, 1, 0.2, 0.2, 0.20);
+	move_to(gc, entry->sec, entry->smoothed);
+	for (i = 1; i < pi->nr; i++) {
+		entry++;
+		line_to(gc, entry->sec, entry->smoothed);
+	}
+	cairo_stroke(gc->cr);
+}
+
+static void plot_minmax_profile_minute(struct graphics_context *gc, struct plot_info *pi,
+				int index, double a)
+{
+	int i;
+	struct plot_data *entry = pi->entry;
+
+	cairo_set_source_rgba(gc->cr, 1, 0.2, 1, a);
+	move_to(gc, entry->sec, entry->min[index]->val);
+	for (i = 1; i < pi->nr; i++) {
+		entry++;
+		line_to(gc, entry->sec, entry->min[index]->val);
+	}
+	for (i = 1; i < pi->nr; i++) {
+		line_to(gc, entry->sec, entry->max[index]->val);
+		entry--;
+	}
+	cairo_close_path(gc->cr);
+	cairo_fill(gc->cr);
+}
+
+static void plot_minmax_profile(struct graphics_context *gc, struct plot_info *pi)
+{
+	plot_minmax_profile_minute(gc, pi, 2, 0.1);
+	plot_minmax_profile_minute(gc, pi, 1, 0.1);
+	plot_minmax_profile_minute(gc, pi, 0, 0.1);
 }
 
 static void plot_depth_profile(struct dive *dive, struct graphics_context *gc, struct plot_info *pi)
@@ -279,6 +269,9 @@ static void plot_depth_profile(struct dive *dive, struct graphics_context *gc, s
 
 	gc->scalex = maxtime;
 
+	plot_smoothed_profile(gc, pi);
+	plot_minmax_profile(gc, pi);
+
 	entry = pi->entry;
 	cairo_set_source_rgba(cr, 1, 0.2, 0.2, 0.80);
 	begins = entry->sec;
@@ -398,7 +391,7 @@ static void plot_info(struct dive *dive, struct graphics_context *gc)
 {
 	text_render_options_t tro = {10, 0.2, 1.0, 0.2, LEFT, TOP};
 	const double liters_per_cuft = 28.317;
-	const char *unit;
+	const char *unit, *desc;
 	double airuse;
 
 	airuse = calculate_airuse(dive);
@@ -421,6 +414,15 @@ static void plot_info(struct dive *dive, struct graphics_context *gc)
 		double sac = airuse / pressure * 60 / dive->duration.seconds;
 		plot_text(gc, &tro, 0.8, 0.85, "SAC: %4.2f %s/min", sac, unit);
 	}
+	desc = dive->cylinder[0].type.description;
+	if (desc || dive->cylinder[0].gasmix.o2.permille) {
+		int o2 = dive->cylinder[0].gasmix.o2.permille / 10;
+		if (!desc)
+			desc = "";
+		if (!o2)
+			o2 = 21;
+		plot_text(gc, &tro, 0.8, 0.9, "%s (%d%%)", desc, o2);
+	}
 }
 
 static void plot_cylinder_pressure_text(struct dive *dive, struct graphics_context *gc)
@@ -460,8 +462,9 @@ static void analyze_plot_info_minmax_minute(struct plot_data *entry, struct plot
 {
 	struct plot_data *p = entry;
 	int time = entry->sec;
-	int seconds = 60*(index+1);
-	int min, max, avg, nr;
+	int seconds = 90*(index+1);
+	struct plot_data *min, *max;
+	int avg, nr;
 
 	/* Go back 'seconds' in time */
 	while (p > first) {
@@ -471,7 +474,8 @@ static void analyze_plot_info_minmax_minute(struct plot_data *entry, struct plot
 	}
 
 	/* Then go forward until we hit an entry past the time */
-	min = max = avg = p->val;
+	min = max = p;
+	avg = p->val;
 	nr = 1;
 	while (++p < last) {
 		int val = p->val;
@@ -479,10 +483,10 @@ static void analyze_plot_info_minmax_minute(struct plot_data *entry, struct plot
 			break;
 		avg += val;
 		nr ++;
-		if (val < min)
-			min = val;
-		if (val > max)
-			max = val;
+		if (val < min->val)
+			min = p;
+		if (val > max->val)
+			max = p;
 	}
 	entry->min[index] = min;
 	entry->max[index] = max;
@@ -579,7 +583,7 @@ static void plot(struct graphics_context *gc, int w, int h, struct dive *dive)
 	plot_depth_profile(dive, gc, pi);
 
 	/* Text on top of all graphs.. */
-	plot_depth_text(dive, gc);
+	plot_depth_text(dive, gc, pi);
 	plot_cylinder_pressure_text(dive, gc);
 
 	/* And info box in the lower right corner.. */