From: Gerhard Sittig <redacted>
Date: Fri, 3 Jul 2020 09:22:03 +0000 (+0200)
Subject: timing: use ss/es for consistency
X-Git-Url: https://sigrok.org/gitweb/?a=commitdiff_plain;h=c945a82d3217da1a7c651ba2404070e00287c87b;p=libsigrokdecode.git

timing: use ss/es for consistency

Consistently use ss and es identifiers for annotation emission to match
other decoders, as well as counting distances between sample points to
increase readability. This also dramatically reduces text line length.
---

diff --git a/decoders/timing/pd.py b/decoders/timing/pd.py
index e687562..f14b64f 100644
--- a/decoders/timing/pd.py
+++ b/decoders/timing/pd.py
@@ -98,7 +98,7 @@ class Decoder(srd.Decoder):
             raise SamplerateError('Cannot decode without samplerate.')
         edge = self.options['edge']
         avg_period = self.options['avg_period']
-        last_samplenum = None
+        ss = None
         last_n = deque()
         last_t = None
         while True:
@@ -109,10 +109,11 @@ class Decoder(srd.Decoder):
             else:
                 pin = self.wait({Pin.DATA: 'e'})
 
-            if not last_samplenum:
-                last_samplenum = self.samplenum
+            if not ss:
+                ss = self.samplenum
                 continue
-            samples = self.samplenum - last_samplenum
+            es = self.samplenum
+            samples = es - ss
             t = samples / self.samplerate
 
             if t > 0:
@@ -120,14 +121,14 @@ class Decoder(srd.Decoder):
             if len(last_n) > avg_period:
                 last_n.popleft()
 
-            self.put(last_samplenum, self.samplenum, self.out_ann,
+            self.put(ss, es, self.out_ann,
                      [Ann.TIME, [normalize_time(t)]])
             if avg_period > 0:
-                self.put(last_samplenum, self.samplenum, self.out_ann,
+                self.put(ss, es, self.out_ann,
                          [Ann.AVG, [normalize_time(sum(last_n) / len(last_n))]])
             if last_t and self.options['delta'] == 'yes':
-                self.put(last_samplenum, self.samplenum, self.out_ann,
+                self.put(ss, es, self.out_ann,
                          [Ann.DELTA, [normalize_time(t - last_t)]])
 
             last_t = t
-            last_samplenum = self.samplenum
+            ss = es