X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=divelist.c;h=4ab61997cfc4e71c374b0f6606708e760377e14d;hb=53ecd2025d00e844fbfb84b5765d975e1e8942be;hp=86e7daf571052104710ce8060ace9af34c11a17f;hpb=f2ccd1c3d55a90ba979749b08a177c1a024a4f2a;p=ext%2Fsubsurface.git

diff --git a/divelist.c b/divelist.c
index 86e7daf..4ab6199 100644
--- a/divelist.c
+++ b/divelist.c
@@ -244,7 +244,7 @@ static void get_dive_gas(struct dive *dive, int *o2, int *he, int *o2low)
 		if (cylinder_none(cyl))
 			continue;
 		if (!o2)
-			o2 = 209;
+			o2 = AIR_PERMILLE;
 		if (o2 < mino2)
 			mino2 = o2;
 		if (he > maxhe)
@@ -258,7 +258,7 @@ newmax:
 		maxo2 = o2;
 	}
 	/* All air? Show/sort as "air"/zero */
-	if (!maxhe && maxo2 == 209 && mino2 == maxo2)
+	if (!maxhe && maxo2 == AIR_PERMILLE && mino2 == maxo2)
 		maxo2 = mino2 = 0;
 	*o2 = maxo2;
 	*he = maxhe;
@@ -392,8 +392,10 @@ static int calculate_otu(struct dive *dive)
 		struct sample *sample = dive->sample + i;
 		struct sample *psample = sample - 1;
 		t = sample->time.seconds - psample->time.seconds;
-		po2 = dive->cylinder[sample->cylinderindex].gasmix.o2.permille / 1000.0 *
-			(sample->depth.mm + 10000) / 10000.0;
+		int o2 = dive->cylinder[sample->cylinderindex].gasmix.o2.permille;
+		if (!o2)
+			o2 = AIR_PERMILLE;
+		po2 = o2 / 1000.0 * (sample->depth.mm + 10000) / 10000.0;
 		if (po2 >= 0.5)
 			otu += pow(po2 - 0.5, 0.83) * t / 30.0;
 	}