altosui: Support MM telemetry packets

Required restructuring the whole telemetry system to provide abstract
interfaces to flight data.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/altoslib/AltosLib.java b/altoslib/AltosLib.java
index 4a779c55..2402331e 100644
--- a/altoslib/AltosLib.java
+++ b/altoslib/AltosLib.java
@@ -20,6 +20,7 @@ package org.altusmetrum.AltosLib;
 import java.awt.*;
 import java.util.*;
 import java.text.*;
+import java.io.*;
 import java.nio.charset.Charset;
 
 public class AltosLib {
@@ -304,6 +305,10 @@ public class AltosLib {
 			(bytes[i+3] << 24);
 	}
 
+	public static int int32(int[] bytes, int i) {
+		return (int) uint32(bytes, i);
+	}
+
 	public static final Charset	unicode_set = Charset.forName("UTF-8");
 
 	public static String string(int[] bytes, int s, int l) {
@@ -375,6 +380,21 @@ public class AltosLib {
 		return v * sign;
 	}
 
+	public static String gets(FileInputStream s) throws IOException {
+		int c;
+		String	line = "";
+
+		while ((c = s.read()) != -1) {
+			if (c == '\r')
+				continue;
+			if (c == '\n') {
+				return line;
+			}
+			line = line + (char) c;
+		}
+		return null;
+	}
+
 	public static String replace_extension(String input, String extension) {
 		int dot = input.lastIndexOf(".");
 		if (dot > 0)