X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Ftransitioncounter.py;h=d3fa73273223e426657edc9c295f9420ec9f9a44;hb=81370309fbf8453b19c8ddfa09ed65064fd72c6e;hp=23b443e98a86969bf72661dff22019c4b0f9e678;hpb=71a133c83c0df02d8c016ec8c192f070ad8a37fd;p=libsigrokdecode.git

diff --git a/decoders/transitioncounter.py b/decoders/transitioncounter.py
index 23b443e..d3fa732 100644
--- a/decoders/transitioncounter.py
+++ b/decoders/transitioncounter.py
@@ -17,6 +17,7 @@
 ## along with this program; if not, write to the Free Software
 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 ##
+
 import sigrok
 
 lastsample = None
@@ -25,78 +26,78 @@ transitions = None
 rising = None
 falling = None
 
-
 def decode(sampledata):
-	"""Counts the low->high and high->low transitions in the specified
-	   channel(s) of the signal."""
-	global lastsample
-	global oldbit, transitions, rising, falling
+    """Counts the low->high and high->low transitions in the specified
+       channel(s) of the signal."""
+    global lastsample
+    global oldbit, transitions, rising, falling
+
+    # TODO: Don't hardcode the number of channels.
+    channels = 8
+
+    # FIXME: Get the data in the correct format in the first place.
+    inbuf = [ord(x) for x in sampledata['data']]
 
-	# TODO: Don't hardcode the number of channels.
-	channels = 8	
+    if lastsample == None:
+        oldbit = [0] * channels
+        transitions = [0] * channels
+        rising = [0] * channels
+        falling = [0] * channels
 
-	# FIXME: Get the data in the correct format in the first place.
-	s = ord(sampledata['data'])
+        # Initial values.
+        lastsample = inbuf[0]
+        for i in range(channels):
+            oldbit[i] = (lastsample & (1 << i)) >> i
 
-	if lastsample == None:
-		oldbit = [0] * channels
-		transitions = [0] * channels
-		rising = [0] * channels
-		falling = [0] * channels
+    # TODO: Handle LAs with more/less than 8 channels.
+    for s in inbuf:
+        # Optimization: Skip identical bytes (no transitions).
+        if lastsample != s:
+            for i in range(channels):
+                curbit = (s & (1 << i)) >> i
+                # Optimization: Skip identical bits (no transitions).
+                if oldbit[i] == curbit:
+                    continue
+                elif (oldbit[i] == 0 and curbit == 1):
+                    rising[i] += 1
+                elif (oldbit[i] == 1 and curbit == 0):
+                    falling[i] += 1
+                oldbit[i] = curbit
 
-		# Initial values.
-		lastsample = s
-		for i in range(channels):
-			oldbit[i] = (lastsample & (1 << i)) >> i
-		
-	# TODO: Handle LAs with more/less than 8 channels.
-	# Optimization: Skip identical bytes (no transitions).
-	if lastsample != s:
-		for i in range(channels):
-			curbit = (s & (1 << i)) >> i
-			# Optimization: Skip identical bits (no transitions).
-			if oldbit[i] == curbit:
-				continue
-			elif (oldbit[i] == 0 and curbit == 1):
-				rising[i] += 1
-			elif (oldbit[i] == 1 and curbit == 0):
-				falling[i] += 1
-			oldbit[i] = curbit
+            # Total number of transitions is the sum of rising and falling edges.
+            for i in range(channels):
+                transitions[i] = rising[i] + falling[i]
 
-		# Total number of transitions is the sum of rising and falling edges.
-		for i in range(channels):
-			transitions[i] = rising[i] + falling[i]
-		
-		lastsample = s
-		print(transitions)
+            lastsample = s
+            print(transitions)
 
-	sigrok.put(sampledata)
+    sigrok.put(sampledata)
 
 register = {
-	'id': 'transitioncounter',
-	'name': 'Transition counter',
-	'longname': '...',
-	'desc': 'Counts rising/falling edges in the signal.',
-	'longdesc': '...',
-	'author': 'Uwe Hermann',
-	'email': 'uwe@hermann-uwe.de',
-	'license': 'gplv2+',
-	'in': ['logic'],
-	'out': ['transitioncounts'],
-	'probes': [
-		# All probes.
-	],
-	'options': {
-		# No options so far.
-	},
-	# 'start': start,
-	# 'report': report,
+    'id': 'transitioncounter',
+    'name': 'Transition counter',
+    'longname': '...',
+    'desc': 'Counts rising/falling edges in the signal.',
+    'longdesc': '...',
+    'author': 'Uwe Hermann',
+    'email': 'uwe@hermann-uwe.de',
+    'license': 'gplv2+',
+    'in': ['logic'],
+    'out': ['transitioncounts'],
+    'probes': [
+        # All probes.
+    ],
+    'options': {
+        # No options so far.
+    },
+    # 'start': start,
+    # 'report': report,
 }
 
 # Use psyco (if available) as it results in huge performance improvements.
 try:
-	import psyco
-	psyco.bind(decode)
+    import psyco
+    psyco.bind(decode)
 except ImportError:
-	pass
+    pass