[PD-cvs] externals/grill/py/scripts buffer.py, 1.3, 1.4 sig.py, 1.4, 1.5 simple.py, 1.6, 1.7

[Thomas Grill]

Update of /cvsroot/pure-data/externals/grill/py/scripts
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv18937/scripts

Modified Files:
	buffer.py sig.py simple.py 
Log Message:
multiply inlets for py (hot and cold inlets)
small optimizations and fixes
use PyGILState_\*() functionality (enabled with PY_USE_GIL)
updates for DSP processing
__str__ method for pyext, to enable print self calls
added message bundle functionality (pyext.Bundle class)
enable compiled-only scripts (without .py)
enable optimization of Python code in reease build
let _inlets and _outlets default to 0
fix for numpy
some ASSERTs for explicitly created pyext classes (should be runtime checks i guess)
open editor for script under OS X
fixing numpy initialization quirks
enable symbol binding for all callables (not only functions and methods)
_isthreaded is now a data member instead of a method
fix for gcc4
added pyext._list and pyext._tuple to convert input lists to Python sequence objects
enable module packages (module/__init__.py[co]), now also for Max
python-like dotted module.function syntax
cleaned up float vs. int pyext tags
compiler flag to exclude DSP objects
some optimizations and py reload fix
more safety for calls where association python-pd has already been removed
always run Python interpreter in the background


Index: sig.py
===================================================================
RCS file: /cvsroot/pure-data/externals/grill/py/scripts/sig.py,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** sig.py	10 Apr 2005 22:24:13 -0000	1.4
--- sig.py	7 Mar 2007 13:40:14 -0000	1.5
***************
*** 1,100 ****
! # py/pyext - python script objects for PD and MaxMSP
! #
! # Copyright (c) 2002-2005 Thomas Grill (gr at grrrr.org)
! # For information on usage and redistribution, and for a DISCLAIMER OF ALL
! # WARRANTIES, see the file, "license.txt," in this distribution.  
! #
! 
! """This is an example script for the py/pyext signal support.
! 
! For numarray see http://numeric.scipy.org
! It will probably once be replaced by Numeric(3)
! """
! 
! try:
!     import pyext
! except:
!     print "ERROR: This script must be loaded by the PD/Max py/pyext external"
! 
! try:
!     import psyco
!     psyco.full()
!     print "Using JIT compilation"
! except:
!     # don't care
!     pass
! 
! import sys,math
! 
! try:    
!     import numarray
! except:
!     print "Failed importing numarray module:",sys.exc_value
! 
! 
! class gain(pyext._class):
!     """Just a simple gain stage"""
!     
!     gain = 0
! 
!     def _signal(self):
!         # Multiply input vector by gain and copy to output
! 		try:
! 			self._outvec(0)[:] = self._invec(0)*self.gain
! 		except:
! 			pass
! 
! 
! class gain2(pyext._class):
!     """More optimized version"""
!     
!     gain = 0
! 
!     def _dsp(self):
!         if not self._arraysupport():
!             print "No DSP support"
!             return False
! 
!         # cache vectors in this scope
!         self.invec = self._invec(0)
!         self.outvec = self._outvec(0)
!         # initialize _signal method here for optimized version
!         if self.invec is self.outvec:
!             self._signal = self.signal1
!         else:
!             self._signal = self.signal2
!         return True
! 
!     def signal1(self):
!         # Multiply signal vector in place
!         self.outvec *= self.gain
!         
!     def signal2(self):
!         # Multiply input vector by gain and copy to output
!         self.outvec[:] = self.invec*self.gain
! 
! 
! class pan(pyext._class):
!     """Stereo panning"""
! 
!     def __init__(self):
!         self.float_1(0.5)
! 
!     def float_1(self,pos):
!         """pos ranges from 0 to 1"""
!         x = pos*math.pi/2
!         self.fl = math.cos(x)
!         self.fr = math.sin(x)
!     
!     def _dsp(self):
!         # if _dsp is present it must return True to enable DSP
!         return pyext._arraysupport()
!     
!     def _signal(self):
!         # Multiply input vector by gain and copy to output
!         iv = self._invec(0)
!         # first process right output channel because left one could be
!         # identical to input
!         # we could also test with 'self._outvec(1)[:] is iv'
!         self._outvec(1)[:] = iv*self.fr
!         self._outvec(0)[:] = iv*self.fl
--- 1,100 ----
! # py/pyext - python script objects for PD and MaxMSP
! #
! # Copyright (c) 2002-2005 Thomas Grill (gr at grrrr.org)
! # For information on usage and redistribution, and for a DISCLAIMER OF ALL
! # WARRANTIES, see the file, "license.txt," in this distribution.  
! #
! 
! """This is an example script for the py/pyext signal support.
! 
! For numarray see http://numeric.scipy.org
! It will probably once be replaced by Numeric(3)
! """
! 
! try:
!     import pyext
! except:
!     print "ERROR: This script must be loaded by the PD/Max py/pyext external"
! 
! try:
!     import psyco
!     psyco.full()
!     print "Using JIT compilation"
! except:
!     # don't care
!     pass
! 
! import sys,math
! 
! try:    
!     import numarray
! except:
!     print "Failed importing numarray module:",sys.exc_value
! 
! 
! class gain(pyext._class):
!     """Just a simple gain stage"""
!     
!     gain = 0
! 
!     def _signal(self):
!         # Multiply input vector by gain and copy to output
! 		try:
! 			self._outvec(0)[:] = self._invec(0)*self.gain
! 		except:
! 			pass
! 
! 
! class gain2(pyext._class):
!     """More optimized version"""
!     
!     gain = 0
! 
!     def _dsp(self):
!         if not self._arraysupport():
!             print "No DSP support"
!             return False
! 
!         # cache vectors in this scope
!         self.invec = self._invec(0)
!         self.outvec = self._outvec(0)
!         # initialize _signal method here for optimized version
!         if self.invec is self.outvec:
!             self._signal = self.signal1
!         else:
!             self._signal = self.signal2
!         return True
! 
!     def signal1(self):
!         # Multiply signal vector in place
!         self.outvec *= self.gain
!         
!     def signal2(self):
!         # Multiply input vector by gain and copy to output
!         self.outvec[:] = self.invec*self.gain
! 
! 
! class pan(pyext._class):
!     """Stereo panning"""
! 
!     def __init__(self):
!         self.float_1(0.5)
! 
!     def float_1(self,pos):
!         """pos ranges from 0 to 1"""
!         x = pos*math.pi/2
!         self.fl = math.cos(x)
!         self.fr = math.sin(x)
!     
!     def _dsp(self):
!         # if _dsp is present it must return True to enable DSP
!         return pyext._arraysupport()
!     
!     def _signal(self):
!         # Multiply input vector by gain and copy to output
!         iv = self._invec(0)
!         # first process right output channel because left one could be
!         # identical to input
!         # we could also test with 'self._outvec(1)[:] is iv'
!         self._outvec(1)[:] = iv*self.fr
!         self._outvec(0)[:] = iv*self.fl

Index: buffer.py
===================================================================
RCS file: /cvsroot/pure-data/externals/grill/py/scripts/buffer.py,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** buffer.py	25 Mar 2005 04:54:16 -0000	1.3
--- buffer.py	7 Mar 2007 13:40:14 -0000	1.4
***************
*** 1,60 ****
! # py/pyext - python script objects for PD and MaxMSP
! #
! # Copyright (c) 2002-2005 Thomas Grill (gr at grrrr.org)
! # For information on usage and redistribution, and for a DISCLAIMER OF ALL
! # WARRANTIES, see the file, "license.txt," in this distribution.  
! #
! 
! """This is an example script for the py/pyext object's buffer support.
! 
! PD/Max buffers can be mapped to Python arrays.
! Currently, there are three implementations:
! Numeric, numarray and Numeric3 (for all of them see http://numeric.scipy.org)
! """
! 
! import sys
! 
! try:
!     import pyext
! except:
!     print "ERROR: This script must be loaded by the PD/Max py/pyext external"
! 
! try:
!     from numarray import *
! except:
!     print "Failed importing numarray module:",sys.exc_value
! 
! def mul(*args):
!     # create buffer objects
!     # as long as these variables live the underlying buffers are locked
!     c = pyext.Buffer(args[0])
!     a = pyext.Buffer(args[1])
!     b = pyext.Buffer(args[2])
! 
!     # slicing causes Python arrays (mapped to buffers) to be created
!     # note the c[:] - to assign contents you must assign to a slice of the buffer
!     c[:] = a[:]*b[:]  
! 
! def add(*args):
!     c = pyext.Buffer(args[0])
!     a = pyext.Buffer(args[1])
!     b = pyext.Buffer(args[2])
! 
!     # this is also possible, but is probably slower
!     # the + converts a into a Python array, the argument b is taken as a sequence
!     # depending on the implementation this may be as fast
!     # as above or not
!     c[:] = a+b  
! 
! def fadein(target):
!     a = pyext.Buffer(target)
!     # in place operations are ok
!     a *= arange(len(a),type=Float32)/len(a)
! 
! def neg(target):
!     a = pyext.Buffer(target)
!     # in place transformation (see Python array ufuncs)
!     negative(a[:],a[:])
!     # must mark buffer content as dirty to update graph
!     # (no explicit assignment occurred)
!     a.dirty() 
--- 1,60 ----
! # py/pyext - python script objects for PD and MaxMSP
! #
! # Copyright (c) 2002-2005 Thomas Grill (gr at grrrr.org)
! # For information on usage and redistribution, and for a DISCLAIMER OF ALL
! # WARRANTIES, see the file, "license.txt," in this distribution.  
! #
! 
! """This is an example script for the py/pyext object's buffer support.
! 
! PD/Max buffers can be mapped to Python arrays.
! Currently, there are three implementations:
! Numeric, numarray and Numeric3 (for all of them see http://numeric.scipy.org)
! """
! 
! import sys
! 
! try:
!     import pyext
! except:
!     print "ERROR: This script must be loaded by the PD/Max py/pyext external"
! 
! try:
!     from numarray import *
! except:
!     print "Failed importing numarray module:",sys.exc_value
! 
! def mul(*args):
!     # create buffer objects
!     # as long as these variables live the underlying buffers are locked
!     c = pyext.Buffer(args[0])
!     a = pyext.Buffer(args[1])
!     b = pyext.Buffer(args[2])
! 
!     # slicing causes Python arrays (mapped to buffers) to be created
!     # note the c[:] - to assign contents you must assign to a slice of the buffer
!     c[:] = a[:]*b[:]  
! 
! def add(*args):
!     c = pyext.Buffer(args[0])
!     a = pyext.Buffer(args[1])
!     b = pyext.Buffer(args[2])
! 
!     # this is also possible, but is probably slower
!     # the + converts a into a Python array, the argument b is taken as a sequence
!     # depending on the implementation this may be as fast
!     # as above or not
!     c[:] = a+b  
! 
! def fadein(target):
!     a = pyext.Buffer(target)
!     # in place operations are ok
!     a *= arange(len(a),type=Float32)/len(a)
! 
! def neg(target):
!     a = pyext.Buffer(target)
!     # in place transformation (see Python array ufuncs)
!     negative(a[:],a[:])
!     # must mark buffer content as dirty to update graph
!     # (no explicit assignment occurred)
!     a.dirty() 

Index: simple.py
===================================================================
RCS file: /cvsroot/pure-data/externals/grill/py/scripts/simple.py,v
retrieving revision 1.6
retrieving revision 1.7
diff -C2 -d -r1.6 -r1.7
*** simple.py	19 Jan 2005 04:58:35 -0000	1.6
--- simple.py	7 Mar 2007 13:40:14 -0000	1.7
***************
*** 1,5 ****
  # py/pyext - python script objects for PD and MaxMSP
  #
! # Copyright (c) 2002-2005 Thomas Grill (gr at grrrr.org)
  # For information on usage and redistribution, and for a DISCLAIMER OF ALL
  # WARRANTIES, see the file, "license.txt," in this distribution.  
--- 1,5 ----
  # py/pyext - python script objects for PD and MaxMSP
  #
! # Copyright (c) 2002-2007 Thomas Grill (gr at grrrr.org)
  # For information on usage and redistribution, and for a DISCLAIMER OF ALL
  # WARRANTIES, see the file, "license.txt," in this distribution.  
***************
*** 58,61 ****
--- 58,63 ----
  	or
  		self._outlet(outlet,arg) ... where arg is a sequence containing only atoms
+ 		
+     Do not use _outlet inside __init__, since the outlets have not been created at that time.
  
  - Use pyext functions and methods: