Dear all,
chuck-1.2.0.1 (dracula), the second major release of the
strongly-timed, concurrent, and on-the-fly audio programming language,
is available. it contains support for arrays (finally), classes,
events, as well as many other additions, bugs fixes, and new bugs!
For linux: real-time audio now defaults to using a callback model
(blocking functionality still available via command line flag), which
greatly increases stability under Jack (and for much lower buffer sizes
across the board). Many thanks to Dave Robillard, Florian Schmidt,
Leonard "paniq" Ritter and others for their suggestions, ideas, and
testing.
Home lair:
http://chuck.cs.princeton.edu/
Improved documentation and language specification (finally):
http://chuck.cs.princeton.edu/doc/
http://chuck.cs.princeton.edu/doc/language/
Happy ChucKing! (and let us know if you run into any issues)
Best,
chuck team
(Perry, Ananya, Phil, Adam, Ajay, Ge ...)
mailing lists and forums:
http://chuck.cs.princeton.edu/community.html
---
what's new:
---
1.2.0.1 - 2005.9.27
- (added) full callback capability for real-time audio
- blocking functionality still available
- select via flags: --blocking and --callback
- improves latency and stability, especially on linux
- use --callback (default) for low latency / small buffer size
- use --blocking for higher throughput
- (fixed) crash when doing on-the-fly 'replace' : chuck --replace 0
foo.ck
- (fixed) OSC event function now correctly named ("event")
- (fixed) removed debug output in OSC
- (fixed) implicit cast is now correct when sporking (thanks to
Manfred Brockhaus)
- (fixed) examples code reformatted, cleaned, and commented
- (fixed) nested class definitions can now have same name as outer
class
- (fixed) nested class bug in scan1 (thanks to Robin Davies)
- (fixed) variable resolution in parent class now visible (thanks to
Robin Davies)
- (fixed) variable resolution ordering
- local, class, parent, global (thanks to Robin Davies)
- (fixed) emitter now asserts inheritance instead of equality (thanks
to Robin Davies)
- (fixed) string comparison ==, !=
- (added) string operations <, <=, >, >=
---
1.2.0.0
SYNTAX and OPERATORS:
- (added) +=>, operator : 2 +=> i; (also) -=>, *=>, /=>, %=>
- (added) @=> for explicit assignment
this is the only way to make object reference assignments
- (added) implicit int to float casting
- (changed) cast now look like: 1.1 $ (int) => int i;
- (added) function call by chucking :
// call
(1,4) => math.rand2f => result;
// same as
math.rand2f(1,4) => result;
LANGUAGE:
- (fixed) type system for existing types
- (added) forward lookup of classes and functions (mutual recursion)
- (added) stack overflow detection for massive recursion
DOCUMENTATION:
- (added) language specification:
http://chuck.cs.princeton.edu/doc/language
COMMAND-LINE:
- (added) --probe prints all audio and MIDI devices
- (added) --log or --verbose logs compiler and virtual machine
- (added) --logN or --verboseN multi level logging
1 - least verbose
10 - most verbose
OBJECTS:
- (added) 'class' definitions : class X { int i; }
- (added) 'extends' keyword : class Y extends Event { int i; }
- (added) virtual/polymorphic inheritance
- (added) added pre-constructors - code at class level
gets run when object is instantiated
- (added) function overloading :
class X { fun void foo() { } fun void foo( int y ) { } }
- (added) base classes (can be extended):
Object, Event, UGen
see below
- (added) base classes (cannot be extended):
array, string
see below
- (added) member data
- (added) static data
- (added) member functions
- (added) static functions
EVENTS:
- (added) base Event class : Event e;
can be used directly
can be extended to custom events
(see one_event_many_shreds.ck)
- (added) waiting on event, chuck to now :
e => now; // wait on e
- (added) e.signal() wakes up 1 shred, if any
- (added) e.broadcast() wakes up all shreds waiting on e
- (added) class MidiEvent (see gomidi2.ck)
alternative to polling.
- (added) class OSCEvent
ARRAYS:
- (added) arrays : int a[10]; float b[20]; Event e[2];
- (added) multidimensional arrays : int a[2][2][2];
- (added) associative arrays : int a[10]; 0 => a["foo"];
all arrays are both int-indexed and associative
- (added) array initialization : [ 1, 2, 3 ] @=> int a[];
- (added) .cap() for array capacity
- (added) .find() test if item is associative array
- (added) .erase() erase item in associative array
UGENS:
- (added) class UGen
can be extended
- (changed) all ugen parameters are now also functions:
// set freq
440 => s.freq => val;
// same as...
s.freq( 440 ) => val;
- (changed) left-most parameters must now be called as functions
// no longer valid
f.freq => float val;
// valid
f.freq() => float val;
// still ok
440 => s.freq => float val;
SHREDS:
- (added) class Shred
- (added) .yield() .id()
STRINGS:
- (added) class string
AUDIO:
- (added) stereo
all stereo unit generators have .left, .right, .pan functions
- (changed) stereo ugen: dac (2 in, 2 out)
- (changed) stereo ugen: adc (0 in, 2 out)
- (added) stereo ugen: pan2 take mono or stereo input and pans
- (added) stereo ugen: mix2 mix stereo input into mono
