From e12dbff4dda5aafbaac98f75f0467ef00dc06c32 Mon Sep 17 00:00:00 2001
From: Nat <natcl@hotmail.com>
Date: Thu, 13 Sep 2007 15:55:52 +0000
Subject: Activity split

---
(limited to 'common/Util/InstrumentDB.py')

diff --git a/common/Util/InstrumentDB.py b/common/Util/InstrumentDB.py
new file mode 100644
index 0000000..ca1e0ef
--- /dev/null
+++ b/common/Util/InstrumentDB.py
@@ -0,0 +1,143 @@
+#!/bin/env python
+import os
+
+##############
+## SOUNDS
+##############
+
+class Instrument:
+    def __init__(self, id):
+        self.id = id
+
+    # build an Instrument instance from argument list
+    def loadFromArgs( self, name, csoundInstrumentName, register, loopStart,
+            loopEnd, crossDur, wav, img, labels ):
+        self.name = name
+        self.csoundInstrumentName = csoundInstrumentName
+        self.register = register
+        self.loopStart = loopStart
+        self.loopEnd = loopEnd
+        self.crossDur = crossDur
+        self.wav = wav
+        self.img = img
+        self.labels = labels
+
+    # build an Instrument instance by parsing a file
+    def loadFromPath(self, path ):
+        f = file(path, 'r')
+        magic = f.readline()[:-1]
+        if (magic != 'TamTam idf v1'):
+            raise 'given file has wrong header'
+        self.name = f.readline()
+        self.csoundInstrumentName = f.readline()
+        self.register = f.readline()
+        self.loopStart = float( f.readline())
+        self.loopEnd = float( f.readline())
+        self.crossDur = float( f.readline())
+        self.wav = f.readline()
+        self.img = f.readline()
+        self.labels = f.readline().split()
+        f.close()
+
+class InstrumentDB:
+
+    # initialize an empty InstrumentDB instance
+    def __init__(self):
+        self.labelSet = {'All':set([])}  # <key>  -> all instruments labelled by <key>
+        self.inst = []      # all instruments
+        self.instNamed = {} # <name> -> instrument with that name
+        self.kit = []       # all kits.  kits are lists of 13 instruments
+        self.kitNamed = {}  # <name> -> kit with that name
+
+    # TEMP? add instrument from args
+    def addInstrumentFromArgs( self, name, csoundInstrumentName, register, loopStart,
+            loopEnd, crossDur, wav, img, labels ):
+        i = Instrument(len(self.inst)) 
+        self.inst += [ i ]
+        i.loadFromArgs( name, csoundInstrumentName, register, loopStart, loopEnd, crossDur, wav, img, labels )
+        #print 'labelSet... ', self.labelSet 
+        self.labelSet['All'].add(i)
+        for l in i.labels:
+            if l not in self.labelSet:
+                self.labelSet[l] = set([])
+            self.labelSet[l].add( i )
+
+
+    # add an instrument to the DB by reading from an instrument definition file
+    def addInstrument( self, path ):
+        i = Instrument(len(self.inst)) 
+        self.inst += [ i ]
+        i.loadFromPath( path )
+        self.instNamed[ i.name ] = i
+        #print 'labelSet... ', self.labelSet
+        self.labelSet['All'].add(i)
+        for l in i.labels:
+            if l not in self.labelSet:
+                self.labelSet[l] = set([])
+            self.labelSet[l].add( i )
+
+    # add a kit by reading from a kit definition file
+    def addKit( self, path ):
+        strlist = file(path, 'r').readline().split()
+        if len(strlist) != 14:
+            raise 'kit length != 13'
+        for str in strlist[1:]:
+            if str not in self.inst_named:
+                raise 'invalid instrument'
+        kit = [ self.instNamed[name] for name in strlist ]
+        self.kit += [ kit ]
+
+    # try to load each file in a given folder as an instrument def. file
+    def scanInstrumentDir( self, path ):
+        dirlist = os.listdir( path )
+        for fpath in dirlist:
+            try :
+                self.addInstrument( path + fpath )
+            except :
+                print 'ERROR: scanning instrument path %s: file %s invalid' % (path, fpath)
+
+    # try to load each file in a given folder as a kit def. file
+    def scanKitDir( self, path ):
+        dirlist = os.listdir( path )
+        for fpath in dirlist:
+            try :
+                self.addKit( fpath )
+            except :
+                print 'ERROR: scanning kit path %s: file %s invalid' % (path, fpath)
+
+    def getLabels( self ):
+        return self.labelSet.keys()
+
+    def getSet( self, label ):
+        return self.labelSet[label]
+
+    def getInstrument( self, id ):
+        return self.inst[id]
+
+    def debug_summarize(self):
+        for i in self.inst:
+            print i.id, i.name
+
+        for l in self.labelSet:
+            print l, [ i.name for i in self.labelSet[l]]
+
+
+db_instance = None
+def getRef():
+    global db_instance
+    if (None == db_instance):
+        db_instance = InstrumentDB()
+    return db_instance
+
+
+if __name__ == "__main__":
+    i1 = getRef()
+    i2 = getRef()
+
+    print i1, i2
+
+    import sys
+    i1.scanInstrumentDir( sys.argv[1] )
+
+    i1.debug_summarize()
+
--
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