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VERSIONS
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------------------
ChucK VERSIONS log
------------------
1.5.4.5 (January 2025)
=======
(reworked) basic @doc functionality for language-defined classes to add
inline CKDoc documentation for class definitions and function defintions.
(reworked; now different from 1.5.4.4) @doc now appears *before* the entity
to be documented; now @doc can be also used with class variables
----------------------------------------
// add inline documenation (processed at compile-time)
@doc "this is a description for the class Foo"
class Foo
{
// add inline documenation (processed at compile-time)
@doc "a function in Foo, bar() likes calling his friends"
fun void bar()
{ }
// add inline documentation for a class variable
@doc "this here is a variable called varFoo"
5 => int varFoo;
}
// these @doc information will appear wherever CKDoc is generated
// or displayed, for example:
Foo.help();
----------------------------------------
(added) the ability to hide variables and functions in ckdoc by adding
"(hidden)" in the @doc string, for example:
----------------------------------------
@doc "putting (hidden) anywhere in the doc string hides the next thing"
15 => int varBarHidden;
----------------------------------------
(added) examples/basic/blit4.ck
(fixed) @import issue that can result in certain entries in import path
to be skipped over.
1.5.4.4 (January 2025)
=======
(added) basic @doc functionality for language-defined classes to add inline
CKDoc documentation for class definitions and function defintions.
(added, experimental -- NOTE: the semantics of this was rewored in 1.5.4.5)
function to retrive CKDoc descriptions for classes and functions:
string CKDoc.describe( Object target );
----------------------------------------
class Foo
{
// add inline documenation (processed at compile-time)
@doc "this is a description for the class Foo"
fun void bar()
{
// add inline documenation (processed at compile-time)
@doc "a function in Foo, bar() likes calling his friends"
}
}
// print class description
CKDoc.describe( Foo );
// with an instance, can also get info about instanced functions
Foo f;
<<< CKDoc.describe( f ) >>>;
<<< CKDoc.describe( f.bar ) >>>;
----------------------------------------
(fixed) proper emission of classes by name, e.g., `<<< SinOsc >>>;`
(fixed) attempts to assign to a constant right-hand-side variable
e.g., `null @=> SinOsc;` now results in a compiler error
NOTE: in the above example, SinOsc is a variable of type 'Type'
and is created alongside the SinOsc class/type; such Type variables
associated with class definitions are automatically marked as constant
(fixed) crash due to functions / classes references a local variable defined
at file-scope; code emission is now internally re-ordered to compile
file-scope code segments -> function definitions -> class definitions
(fixed) foreach `auto` variable typing for multi-dimenion array, e.g.,
--------
// two dim array
for( auto x : [[1,2],[3,4]] ) {
for( auto y : x ) {
// print
<<< y >>>;
}
}
--------
=======
(fixed) miniAudicle export and record functionalities; these resulted in
empty WAV file (in 1.5.4.2 and 1.5.4.3), due to updates to garbage collection
policy for UGens. exporting and recording should now work, once again
1.5.4.3 (December 2024)
=======
new ChuGL v0.2.5 (see ChuGL release notes below)
~~~
ChucK 1.5.4.3
=======
(added, at last) class STATIC variable initialization for primitive
and Objects types. (Previously, static variables needed to be
instantiated and initialized separately.) Now variables of any
type can be declared as static variable and they will be automatically
initialized on a per-class basis. Example:
----------------------------------------
class Foo
{
// declare a static int in class Foo
5 => static int THE_NUM;
// declare a static SinOsc in class Foo
static SinOsc THE_UGEN(440);
}
// can be accessed as before
<<< Foo.THE_NUM, Foo.THE_UGEN.freq() >>>;
----------------------------------------
SEMANTICS for static variables
----------------------------------------
as before, static variable can only be DECLARED:
a) within a class definition
b) outside of any class function defintion
c) at the outer-most class scope (cannot be in nested { })
-----------------------------------------
COMPILE-TIME checks:
1) a statement containing a static variable declaration
CANNOT access member data/functions
2) otherwise, a statement can access both static and member data.
3) a statement containing a static variable declaration
CANNOT access local (i.e., outside of class def) vars or funcs
even in non-public classes
-----------------------------------------
RUNTIME checks:
4) static initialization statements are run in immediate mode
meaning no time advances; this is enforced at runtime; any
time advances, including waiting on events, will result in
a runtime exception
-----------------------------------------
(added) examples/class/static-init.ck
examples/import/import-test-3.ck
(added) '/usr/lib/chuck' to @import system search paths on Linux and MacOS.
.chug files in system paths will auto-load on start up (.ck files will
not auto-load and needs to be @imported in order to be used); also
@import will now include this directory when resolving fileanems.
(added) "ChucK => Music Programming Language" title to --about
(fixed) object instantiation refcount integrity; now correctly accounts
for the situation where the object reference count is 0 during
constructors (before assignment to a variable) and the constructor
performs operations that previously could cause itself to be garbage
collected
(fixed) now properly emits function calls vs. function values
(fixed) class definitions that encounter compiler errors (or are
in files that have compiler errors) are now correctly rolled back
in the type system; previously it was possible to instantiate
partial class definition defined in previously compiled code/file,
with undefined outcome
=======
ChuGL v0.2.5 Release Notes
=======
(added) input functions to get *all* keys held/pressed/released this frame
GWindow.keys()
GWindow.keysDown()
GWindow.keysUp()
(added) new RenderPass methods to set the output resolution, msaa sample
count,target scene and target camera for rendering
garbage collection mechanism for all UGens(added) HUD pass to ChuGL's default rendergraph. Can now easily add 2d HUD
overlay to 3D scenes by grucking ggens to GG.hud()
(added) examples/basic/hud.ck
(fixed) crash caused by ShaderDesc and other internal reference counting
logic
=======
1.5.4.2 (November 2024)
=======
new ChuGL v0.2.4 (see ChuGL release notes below)
=======
(updated) --chugin-path:<path> no longer auto-loads chugins found in the
specified paths; instead the specified paths are added to the import
system user paths, and the .chug and .ck files within the specified
paths can be @imported.
(updated) improved internal garbage collection mechanism for all UGens;
now UGens are garbage collected and disconnected from all its UGen
connections, as soon as it is now longer referenced from code (previously,
this was deferred until the end of origin shred the UGen was created on,
which poses potentially significant memory build-up if a shred repeatedly
instantiated/connected UGens without exiting). Overall, this internal
update should result in improved CPU performance and memory behavior in
various scenarios.
(fixed) long-standing SndBuf issue, especially prevalent on macOS:
"System error : Too many open files." this was due a combination of
(fixed) memory leak involving string operations (e.g., string + string);
internally, string operations now are appropriately handled by the
operator overloading mechanism
(fixed) < <= > >= operators for strings
(fixed) an issue chugin system auto-load and --chugin-probe was skipping
over the first element when scanning directories
(fixed) vec2/vec3/vec4 implicit cast logic for +=> and -=> operations
(previously, this would cause a crash in some cases)
(fixed) vec2/vec3/vec4 function call from literal (non-variable) value
(e.g., @(1,0).magnitude(); previously this yielded a compiler error)
(added) examples/stk/tubebell-algo5.ck
(added) vector dot product methods for vec2, vec3, and vec4
float vec2.dot( vec2 rhs )
float vec3.dot( vec3 rhs )
float vec4.dot( vec4 rhs )
(added) vector cross product method for vec3 and vec4 (as 3D shorthand)
NOTE: this is the same as vec3*vec3 or vec4*vec4
NOTE: 4D cross product is mathematically undefined; vec4 cross product
ignores the `w` components and computes a 3D cross product;
`w` is also set to zero in the resulting vec4
vec3 vec3.cross( vec3 rhs )
vec4 vec4.cross( vec4 rhs )
(added) Type.of( vec2 ) function to get the associate Type
(added) --auto-load-chugin-path:<path> flag -- this behaves as
--chugin-path previously did: chugins in the specified path(s) are
auto-loaded; .ck files can be @imported
(fixed) --chugin:<name> and --chugin-path:<path> now correctly auto-expand
paths
(updated) Shred(.parent(), .ancester(), .childMemSize(), .childRegSize())
now will operate with respect to the shred reference rather than always
w.r.t. the calling shred (e.g., shred that is running when these functions
are called)
(added) Shred.pc(), .regSP(), .memSP() -- for debugging, info, amusement
=======
ChuGL v0.2.4 Release Notes
=======
New Features:
- Should now support both X11 and Wayland on Linux
- PolygonGeometry: provides (decently) robust/performant triangulation, useful for animating or
drawing deformable 2d shapes
- WireframeMaterial: renders a mesh as a wireframe
- Texture.copy(...): can now copy data between textures
- Texture.read(...): read back texture data from GPU --> CPU
~~~
Improvements:
- Significantly reduced startup time from loading large OBJ models or building geometry with
many vertices (tangent frame calculation has been moved from the CPU --> GPU)
- Optimized webcam implementation (now consumes less memory and requires fewer memory transfers)
~~~
New examples
- deep/ray_triangle_intersection.ck: 3d ray-triangle intersection testing. Thanks Shenran!!
- deep/fish.ck: procedurally animating a fish, showcases PolygonGeometry
- deep/webcam_echo.ck: webcam delay effect via texture copying
- basic/triangulate.ck: polygon triangulation with PolygonGeometry
- basic/texture_read.ck: showcases reading texture data from GPU into chuck
~~~
Bug Fixes:
- Crash when using Video textures
- Fix race condition in Webcam destructor
- GText now supports empty strings, and can properly disconnect from the scenegraph
- AssLoader will take model ambient color (Ka) into account
=======
1.5.4.1 (November 2024)
=======
(patch release)
- (fixed, linux) a crash when the OTF handles an OTF command (add or replace)
- (added) support for crawling subdirectories for importing for packages
to be managed by the upcoming ChuMP (ChucK Manager of Packages)
- (updated) --chugin-probe now prints .ck files in the import search paths
NOTE: as of 1.5.4.1 chuck auto-loads ONLY chugins in the system search
paths; all other chugins and all chuck files in the import search paths
must be @imported in order to be used.
1.5.4.0 (November 2024)
=======
\/\/\/\/\/
LICENSE UPDATE: ChucK source code is dual-licensed under the MIT License
and the GNU General Public License 2.0 (or any later version). You can
choose either license in order to use the source code. Previoiusly, ChucK
was GPL-only. Please the LICENSE.MIT and LICENSE.GPL in the source
distribution for details.
----
NOTE: as before, miniAudicle source code remains GPL for now; chugins
each have their own license(s). WebChucK, ChuGL, Chunity, Chunreal
respectively have MIT licenses
/\/\/\/\/\
********** new language feature ************
@import system for .ck and .chug files
********************************************
- for language specification and examples regarding @import:
***************************************************
https://chuck.stanford.edu/doc/language/import.html
***************************************************
- the @import system imports classes and operator overloads from another
.ck file, or from a chugin; it is designed to faciliate creating,
using, and distributing multi-file programs and libraries
- @import SYNTAX:
@import "Foo.ck" // import Foo.ck
@import "Bar.chug" // import Bar.chug chugin
@import { "AAA.ck", "BBB.chug", "CCC" } // multiple imports on one line
@import "/Users/ge/chuck/examples/import/foo-user.ck" // absolute path
@import "../dir/Blarg.ck" // relative path
@import "Foo" // can use implicit filename; @import will search and
match for .ck, .chug, and .chug.wasm, in each directory in the
chugin/import search paths
- @import picks up all (and only) *public* definitions (classes and
operator overloads);
-- this implies that @import will only add new definitions to the type
system, but will NEVER automatically run any code; client code must
first instantiate class or use an operator to execute the contents
of imported files
-- this makes it possible to write unit-test code for public classes
in the same file in which it is defined; any code outside of public
class/operator definition will NOT be type-checked or run (this
code will only scanned for syntax)
- @imports are resolved at compile-time, before the rest of the host file
is evaluated; this makes it possible for a a host .ck file to @import
one or more files and make use of their contents immediately (when it
comes to dependency management, this compile-time import mechanism is
more powerful than the run-time Machine.add()).
- @import can work recursively; can @import files that @import other
files
- @import has built-in cycle-detection; if an @import cycle is detected,
a compiler error will be issued and that compilation will be failed
*******************
ChuGL 0.2.3 Release
*******************
- Video textures!
- Currently supporting MPEG1 Video decoding and playback
- Webcam/video camera integration
- ChuGL can now run at a fixed framerate across all machines/monitors
- `GG.fps(int fps)` to set the target framerate (lower values improve
chuck's audio performance)
- defaults to 60fps
- Added skybox support to GScene and environment lighting to PhongMaterial
- New Examples
- basic/skybox.ck
- basic/webcam.ck
- basic/video.ck
- Fix memory leak on creating new Shaders
- (updated behavior) the one-public-class-per-file restriction has been
lifted; i.e., it is now possible to define more than one public class
in a single .ck file; this update is intended to give programmers and
library creators more flexibility in organizing their public class
definiition
- (updated behavior) .ck files found in chugin/import search paths (e.g.,
~/.chuck/lib) NO LONGER automatically loads; instead these now must
be explicitly @imported to be used (FYI just the file name will
suffice, assuming there are no filename conflicts elsewhere in the
import paths)
*******************
- (added) member function in Object to get the instantiated type of an
object, regardless of the apparent type
Type Object.typeOfInstance()
Get the instanced type of this object.
- (fixed) specific internal UGen connection error now handled without
exiting
- (fixed, windows) single letter filenames without extensions (e.g., "A")
now are distinguished from windows drive letters (e.g., "A:\")
- (fixed) Type.of() now reports more specific array type (e.g.,
`string[]`) instead ofgeneric `@array`
- (fixed) type system [user] namespace now instantiated correctly at
initialization; previously [global] was used until a clearVM was
performed -- this caused incorrect behavior with certain functionality,
including a crash in Type.children(); relatedly a long-standing
bug was fixed in the type system scope::lookup mechanism that added
NULL entries during lookup
- (fixed) modulo `%` by zero (int or float) now throws an exception;
previously this would either produce an incorrect result or cause a
crash
- (updated) .sort() a string array will now sort alphabetically (instead
of by Object refs)
- (updated, internal) dynamic array types are now cached and reused,
preventing potential memory build-up across compilations
- (updated) chugin probe no longer recursively crawl directories
- (updated) variable dependency check now treats sporked functions same
as function calls; unfulfilled dependencies will result in a compiler
error; previously, correctness in this regard was left to the
programmer but could cause a crash. this update is more stringent than
is always necessary (due to spork being parallel and the timing
behavior, the dependency sometimes are resolved in actuality.
however, ChucK team deems potentially over-aggressive dependency
checking for sporked functions is preferrable to unexpected and
hard-to-debug crashes.
============
For example:
============
```
// spork a function (that depends on foo)
spork ~ printArray();
// initialize foo
5 => int foo;
// function that needs foo
fun void printArray()
{
// need 'foo' initialized here
if( foo == 5 ) <<< "success" >>>;
}
// give the sporked shred a chance to run
me.yield();
```
===============
compiler error:
===============
error: sporking 'printArray()' at this point potentially skips
initialization of a needed variable:
[9] spork ~ printArray();
^
error: ...(note: this skipped variable initialization is needed by 'fun
void printArray()')
[12] 5 => int foo;
^
error: ...(note: this is where the variable is used within 'fun void
printArray()' or its subsidiaries)
[18] if( foo == 5 ) <<< "success" >>>;
^
...(hint: try calling 'printArray()' after the variable initialization)
==============
1.5.3.2 (October 2024)
=======
*** ChuGL maintanance patch ***
- (updated) backend WebGPU version to wgpu-22.1.0.5
- (added) OpenGL fallback on machines where modern graphics APIs (vulkan, metal, direct3d)
are not supported
- (fixed) shreds can now exit a GG.nextFrame() loop without hanging the window
- (added) GG.unregisterShred() to manually unregister a graphics shred
- (added) new examples
- deep/particles.ck : musical partical system
- deep/sprite_animation.ck : sprite animation via sprite sheets
- (fixed) race condition on window resize
*******************************
- (added) MidiFileIn.bpm()
"Same as beatsPerMinute()."
- (added) MidiFileIn.ticksPerQuarter();
"Get the ticks per quarter (TPQ) value from the MIDI file header."
- (added) MidiFileIn.tpq();
"Same as ticksPerQuarter()."
- (fixed) documentation for MidiMsg.when:
"Duration since the last MidiMsg (only valid for MidiFileIn)."
- (fixed, windows) SndBuf issue when compiled with UNICODE (FYI SndBuf is still ANSI,
but this averts an error due to char width mismatch)
- (changed, developer) chuck global manager getGlobalUGenSamples() now handles multi-channel
implications for Chunity support for stereo
- (added) new examples (FM Synthesis)
examples/stk/jacobass-algo1.ck
(such groove, much Algorithm 1)
examples/stk/nylon-guitar-algo1.ck
(updated/renamed from honkeytonk-algo3.ck)
1.5.3.1 (October 2024)
=======
*** ChuGL maintanance patch ***
- (fixed) crash caused by calling UI functions before calling GG.nextFrame();
now prints a warning with a hint to call GG.nextFrame()
- (fixed) CPU and memory spikes when minimizing a ChuGL window
- (fixed) crash caused by immediately disconnecting GGen after -->
*******************************
- (fixed) ADSR constructors now work correctly
- (fixed) compiler now reports line numbers and caret position correctly after
a multi-line string literal
1.5.3.0 (September 2024)
=======
- (major update) ****** ChuGL.chug v0.2.0 (alpha) ******
* complete under-the-hood engine rewrite
* now uses WebGPU instead of OpenGL as the core graphic library
* some minor API changes, see: https://chuck.stanford.edu/chugl/api/
* new and updated examples, see: https://chuck.stanford.edu/chugl/examples/
* for more information, visit: https://chuck.stanford.edu/chugl/
*********************************************
- (added, macOS and Linux) --chugin: and --chugin-path:
flags now expands '~' in filepath
- (developer) fixed QUERY->getinfo(); previously the function pointer was
NULL and would caused a crash if called
- (developer) updated set/getParam() key names:
was: CHUCK_PARAM_USER_CHUGINS now: CHUCK_PARAM_CHUGIN_LIST_USER
was: CHUCK_PARAM_USER_CHUGIN_DIRECTORIES now: CHUCK_PARAM_CHUGIN_LIST_USER_DIR
1.5.2.5 (July 2024)
=======
- (updated) chugin API version from 10.1 to 10.2
- (added) chugin API for callback on shutdown
- (added) chugin API for setting array elements (thanks azaday)
- (added) overloaded constructors (more to come)
==================
Envelope( dur durationToTarget )
Construct an Envelope with duration to reach target (assumed to be 1.0);
FYI this does not start the Envelope until .keyOn() is called.
Envelope( float secondsToTarget )
Construct an Envelope with duration (in seconds) to reach target (assumed to be 1.0);
FYI this does not start the Envelope until .keyOn() is called.
Envelope( dur durationToTarget, float target )
Construct an Envelope with duration to reach target;
FYI this does not start the Envelope until .keyOn() is called.
Envelope( float durationToTarget, float target )
Construct an Envelope with duration (in seconds) to reach target;
FYI this does not start the Envelope until .keyOn() is called.
ADSR( dur attack, dur decay, float sustain, dur release )
Construct an ADSR with attack, decay, sustain, and release values. Attack,
decay, and release values are durations; sustain is a float value typically
between 0 and 1.
ADSR( float attack, float decay, float sustain, float release )
Construct an ADSR with attack, decay, sustain, and release values. Attack,
decay, and release values are in seconds; sustain is a float value
typically between 0 and 1.
Delay( dur delay, dur max )
Construct a Delay with delay length and delay max.
Delay( dur delay )
Construct a Delay with delay length and, implicitly, delay max.
DelayA( dur delay, dur max )
Construct a DelayA with delay length and delay max.
DelayA( dur delay )
Construct a DelayA with delay length and, implicitly, delay max.
DelayL( dur delay, dur max )
Construct a DelayL with delay length and delay max.
DelayL( dur delay )
Construct a DelayL with delay length and, implicitly, delay max.
Echo( dur delay, dur max )
Construct an Echo with delay length and delay max.
Echo( dur delay )
Construct an Echo with delay length and, implicitly, delay max.
==================
- (added) new member functions
==================
dur Envelope.ramp( dur durationToTarget, float target );
Over the given duration, ramp toward the specified target; returns the given
duration.
dur Envelope.ramp( float secondsToTarget, float target );
Over the given duration (in seconds), ramp toward the specified target; returns
the given duration.
void Delay.set( dur delay, dur max )
Set delay length and delay max; delay should be <= max.
void DelayA.set( dur delay, dur max )
Set delay length and delay max; delay should be <= max.
void DelayL.set( dur delay, dur max )
Set delay length and delay max; delay should be <= max.
void Echo.set( dur delay, dur max )
Set delay length and delay max; delay should be <= max.
==================
- (added) examples/basic/envelope2.ck -- to show Envelope.ramp() in action
- (added) new MidiOut message voice message convenience functions (thanks @cviejo;
previously these are possible only through `MidiOut.send( MidiMsg msg )`:
==================
int send( int status, int data1, int data2 );
Send out a MIDI message consisting of one status byte and two data bytes.
int channelPressure(int channel, int pressure)
Send out a channelPressure message.
int controlChange(int channel, int controller, int value)
Send out a controlChange message.
int noteOff(int channel, int note, int velocity)
Send out a noteOff message.
int noteOn(int channel, int note, int velocity)
Send out a noteOn message.
int pitchBend(int channel, int value)
Send out a pitchBend message.
int pitchBend(int channel, int lsb, int msb)
Send out a pitchBend message with fine and coarse values.
int polyPressure(int channel, int note, int pressure)
Send out a polyPressure message.
int programChange(int channel, int program)
Send out a programChange message.
==================
- (added) examples/midi/midiout2.ck -- demonstrates using the above channel
voice messages
- (added) examples/deep/smb.ck -- a ChucK rendition of Super Mario Bros.
original theme by Koji Kondo; (meticulously) modeled in ChucK by
Wesley Burchell in 2017
- (added) examples/basic/delay2.ck -- example showing DelayL constructor
and modulating delay line length
- (added) examples/basic/blit3.ck -- lounge blit; made for svork concert
lounge music for premiere in May 2024
- (added) examples/special/scream-o-matic/scream-o-matic.ck -- using
multiple LiSas for granular synthesis, to make continuous
scream generator
- (added) command line query system `--query:<name>`
- (added) CKDoc JSON output (terry feng)
- (added) Type type added to CKDoc script and deployed online:
https://chuck.stanford.edu/doc/reference/utils.html#Type
- (added) CKDoc.sort( int ) -- toggle alphabetical sorting of functions and variables
within Type documentation generation (thanks azaday)
- (fixed) globals events system synchronization (FYI this fixes a long-running,
elusive Chunity crashing bug involving various syncers)
- (fixed) STK Moog parameters now consistent (should sound more Moog-y)
- (fixed) local non-control structure local scope Objects now correctly cleaned
up at the end of local scope
- (updated) more and clearer error messages when initializing real-time audio
- (developer) streamline makefile targets 'test' 'doc' 'clean'
1.5.2.4 (April 2024)
=======
- (fixed) runtime exception line number reporting
- (fixed) 3rd-time array ugen link modulo connection between different # of channels
- (fixed) LiSaX crashing on duplicate constructor and destructors (thanks @eswartz)
- (fixed) LiSaX memory leak on creation due to duplicate constructor
- (reinstated) the UGen `bunghole` (a tribute to cultural icon Beavis); equivalent to
blackhole in functionality
1.5.2.3 (April 2024)
=======
- (fixed) regression issue with connecting arrays of mono UGens to
non-mono ugens; e.g., `Gain a[2] => dac;`
FYI examples/stereo/ugen-array.ck now works once again
- (updated) examples/array/array_ugens.ck contains additional
examples of array of ugens connecting with stereo ugens
1.5.2.2 (March 2024)
=======
- (added) Open Sound Control (OSC) address wildcard support
(developer note) internally updated OSC implmentation to liblo v0.32
- (added) OSC wildcard examples
examples/osc/wildcards/r-wildcards.ck
examples/osc/wildcards/s-multi.ck
- (modified) semantics for connecting (=>) arrays of UGens;
1) LHS[X] => RHS: each elements in LHS => to RHS
// Gain A[3] => Gain B;
2) LHS[X] => RHS[X]: one to one mapping
// Gain C[3] => Gain D[3];
3) LHS[X] => RHS[Y]: one to one mapping up to min(X,Y), after
which elements in the smaller array will modulo to the beginning
and connect to remaining elements in larger array
// Gain E[2] => Gain F[3];
4) LHS => RHS[X]: LHS => to each element in RHS
// Gain G => Gain H[3];
- (added) connecting (=^) arrays of Unit Analyzers (UAnae)
- (added) examples/array/array_ugen.ck
- (added) Math.min( int, int ) and Math.max( int, int )
NOTE: these overload the existing (float,float) min/max functions
- (fixed) error reporting for =^ =v --> --< operators
- (fixed) all oscillators Osc( freq, phase ) constructors; previously the phase
was not set correctly
- (fixed) crash in cleaning up certain global objects (specifically those
with default constructors), including OscIn, and ChuGL classes
GGen, Geometry, FileTexture
- (fixed) incorrect CKDoc .help() labeling non-constructors as
constructors in user-defined classes
- (developer) added internal/audio-thread-callable setters for global
int / float arrays
1.5.2.1 (December 2023) ChuGL (alpha) => standard distribution
=======
- (added) ChuGL (alpha) is now part of the standard chuck distribution
(macOS and windows; on linux, build from source)
https://chuck.stanford.edu/chugl/
- (note) this alpha release of ChuGL (ChucK Graphics Library: a real-time
audiovisual programming framework) only works with command-line `chuck`
and does not work from within miniAudicle (miniAudicle support is on
the ChuGL development roadmap)
=======
- (added) chugins can now implement a "info query function" to provide
chugin-specific infomation to be accessible from host, including:
* chugin version (not to be confused with compatibility version)
* chugin author(s)
* chugin description
* (optional) chugin URL
* (optional) contact email
for example, in the chugin source:
```
// chugin info func
CK_DLL_INFO( MyChugin )
{
// set info
QUERY->setinfo( QUERY, CHUGIN_INFO_CHUGIN_VERSION, "v3.6.1" );
QUERY->setinfo( QUERY, CHUGIN_INFO_AUTHORS, "Ana B. Croft" );
QUERY->setinfo( QUERY, CHUGIN_INFO_DESCRIPTION, "what does it do?" );
QUERY->setinfo( QUERY, CHUGIN_INFO_URL, "https://foo.com/FooBar" );
QUERY->setinfo( QUERY, CHUGIN_INFO_EMAIL, "[email protected]" );
}
```
- (updated) revert chugin/host compatibility policy
chugin major version must == host major version
chugin minor version must <= host minor version
(previously in 1.5.2.0) chugin AND host API version must match
1.5.2.0 (November 2023) "Better Late Than Never...constructors"
=======
- (added) class constructors
- (added) overloadable class constructors definitions
============
constructors can be invoked when declaring a variable or with `new`:
```
// connecting UGens, with construtors
SinOsc foo(440) => Gain g(.5) => dac;
// `new` and assignment
new TriOsc(440,pi/2) @=> Osc @ oscillator;
// can combine constructors with arrays
string arr("foo")[10];
```
============
constructors can be defined and overloaded in class definitions:
```
class Foo
{
// a member variable
1 => int num;
// constructor "default"
fun @construct() { 2 => num; }
// another constructor
fun @construct( int x ) { x => num; }
// yet another constructor
fun @construct( int x, int y ) { x*y => num; }
// alternate way of define a constructor, using the class name
fun Foo( int x, int y, int z ) { x*y*z => num; }
// destructor
fun @destruct() { <<< "bye:", this.num >>>; }
}
// constructor "default"
Foo f1();
// another constructor
Foo f2(15);
// yet another constructor
new Foo(8,9) @=> Foo @ f3;
// yet another constructor
new Foo(10,11,12) @=> Foo @ f4;
// print
<<< f1.num, f2.num, f3.num, f4.num >>>;
```
- (added) examples/class/constructors.ck
- (added) examples/class/destructor.ck
- (added) CKDoc and .help() support for constructors
- (added) overloaded functions can now have different return types;
for example:
```
// foo() overload 1 returns float
fun float foo( float b ) { return b; }
// foo() overload 2 returns int
fun int foo( int a ) { return a; }
```
- (fixed) Type.of("int[][]").isArray() now correctly returns true
- (fixed) overzealous dependency validation for member variable usage
from other classes
- (fixed) overzealous dependency validation for file-level variable
usage from functions
- (fixed) disambiguating overloaded functions to choose the "closest" match
by function call argument type inheritance "distance" to function
argument type
- (added) Shred.parent() and Shred.ancestor()
- (added) compiler error for ambiguous function calls when there is no
"closest" match
- (fixed) array popFront() crash on Object-based arrays
- (updated) ChucK API doucmentation for constructors
- (added) overloaded constructors added (more to come)
==================
Gain( float gain );
Construct a Gain with default value.
SndBuf( string path );
Construct a SndBuf with the 'path' to a sound file to read.
SndBuf( string path, float rate );
Construct a SndBuf with the 'path' to a sound file to read, and a default playback 'rate' (1.0 is normal rate)
SndBuf( string path, float rate, int pos );
Construct a SndBuf with the 'path' to a sound file to read, a default playback 'rate' (1.0 is normal rate), and starting at sample position 'pos'
Step( float value );
Construct a Step with a default value.
string( string str );
Construct a string as a copy of another string.
Osc( float freq );
Construct a Osc at specified frequency.
Osc( float freq, float phase );
Construct an Osc at specified frequency and phase.
(similarly for SinOsc, TriOsc, SqrOsc, SawOsc, PulseOsc, Phasor)
==================
chugins API update
==================
- (updated) chugin API version updated to 10.1
-- complete decoupling of chugins interface and chuck core
implementation details
-- new chugins runtime API functions to provide access
to chuck core operations that is safe across the shared/dynamic
library boudaries between chugins and a chuck host
(see Chuck_DL_Api in chuck_dl.h for details)
- (updated) all chugins can now include a single header `chugin.h`
with no additional header dependencies
[see: https://github.com/ccrma/cheaders/tree/main/include]
FYI: this single-header `chugin.h` is generated from a minimal
set of chuck core header files: chuck_def.h chuck_symbol.h
chuck_absyn.h and chuck_dl.h
- (updated) it is highly recommended that all chugins update to
using chugin.h; it is still possible to include chuck headers
directly (either chuck_dl.h or chuck.h), but must #define
__CHUCK_CHUGIN__ macro (if using chugin.h, this macro is always
defined at the top of file)
- (updated) chugin AND host API version must now match
(previously only the major version must match)
- (added) chugins runtime API support for creating arrays from chugins
- (added) chugins support for overloading constructors
1.5.1.8 (October 2023) "Halloween Release"
=======
(note) memory management is ghoulishly frightful!
- (fixed) an issue with memory management / reference counting across
overloaded operations that return Object
- (fixed) an issue with reference count cleanup on recursive functions
that return Objects
- (fixed) an issue with reference count cleanup on 'new' operator,
e.g., (new Foo).f();
- (updated) reduced memory management dependency between language-defined
objects and their "parent" shreds
- (updated) --color:ON and --color now will always output ANSI color
codes, regardless of TTY status; (FYI --color:AUTO is unchanged
and is the same as default, i.e., enable color terminal if TTY
detected; disable otherwise
- (added, developer) chugins API float array access
1.5.1.7 (October 2023) "vec2"
=======
- (added) new type 'vec2' 2D vector type
for 2D animation (ChuGL) as well as texture mapping UV or ST
coordinates; access fields with .x/.y OR .u/.v OR .s/.t
- (added) new examples/vector/vec2.ck
- (reworked) memory management across function calls that return
Object types; now correctly tracks all instances within a
statement and balances reference counts; previously there was
a chance that object refcount were not correctly released,
causing incorrect behavior including memory leaks.
"dangling object references tracking and cleanup"
examples include (assumption: foo() returns an Object):
`foo().bar;` or `foo(), foo()` (multi-expression stmt) or
`while( foo().bar ) { ... }` (loop stmt) and many more.
- (fixed) incorrect reference count for certain usages of 'null'
where the expression was interpreted incorrectly as a
function call, e.g., obj == null
1.5.1.6 (October 2023) patch release
=======
- (fixed) a serious issue accessing vec3/vec4 fields (.x, .y, .z. .w)
where the operand stack was incorrectly cleaned, which could lead
to stack overflow. This issue has been addressed.
=======
NOTE: 1.5.1.5 is the alpha-release / soft launch of ChuGL, a unified
audiovisual programming framework built into the ChucK programming
language. It offers real-time, unified audio synthesis and 3D/2D graphics
programming in a single strongly-timed language.
------
https://chuck.stanford.edu/chugl/
=======
1.5.1.5 (October 2023) "operator overloading + chugins API 9.0"
=======
- (added) operator overloading is here!
Most operator can now be overloaded, within their respective existing
forms in the language (e.g., binary operators such as '+' and '=>'
can be overloaded as binary operators, but not as unary operators).
Similar to class definitions, operator overloads are local in scope
to the file context, unless declared with 'public'. operator
overloading marked as 'public' will persists until 1) the VM stops or
2) the VM is cleared/reset.
//-----------------------------------------------------------
// the general format for overload an operator is as follows:
//-----------------------------------------------------------
// let's say we define a custom class...
public class Foo { int num; }
// PUBLIC operator overloading (transcends contexts and files;
// will persist until stop VM or clear VM. NOTE the use of 'public'
// instead of 'fun' (fun for all!)
public Foo @operator =^( Foo lhs, Foo rhs )
{ /* do stuff for Foo =^ Foo */ return rhs; }
// LOCAL binary operator overload for '=>' (local to this context)
fun Foo @operator =>( Foo lhs, Foo rhs )
{ /* do stuff for Foo => Foo */ return rhs; }
// define binary operator overload for '+'
fun Foo @operator +( Foo lhs, Foo rhs )
{ Foo retval; lhs.num + rhs.num => retval.num; return retval; }
// define binary operator overload for '*'
fun Foo @operator *( Foo lhs, Foo rhs )
{ Foo retval; lhs.num * rhs.num => retval.num; return retval; }
// define unary operator overload for '!'
fun int @operator !( Foo foo )
{ return !foo.num; }
// define postfix operator overload for '++'
fun Foo @operator ( Foo foo ) ++
{ foo.num++; return foo; }
//-----------------------------------------------------------
// using the new overloaded operators
//-----------------------------------------------------------
// create 2 Foos
Foo a, b; 1 => a.num; 2 => b.num;
// operator in action (follows default ck operator precedence)
a + b * b + a @=> Foo c;
// post ++ on c
c++;
// should print 7
<<< c.num >>>;
//-----------------------------------------------------------
- (added) new examples showing basic operator overloading usage
examples/oper/overload_overview.ck
examples/oper/overload_pre_post.ck
examples/oper/overload_public.ck
examples/oper/overload_gru.ck
- (added) the "gruck operator" --> (graphical chuck operator) as part
of ChuGL (ChucK Graphics Library), which will be part of the ChucK
language
- (added) Machine function to on-the-fly control operator overloading stack
static void resetOperators();
Reset operator overloading state to default startup state;
removes all public @operator overloads; use with care.
- (added) new Machine function for getting number of shreds currently in VM
static int numShreds();
Get the number of shreds currently in the VM.
- (added) improved exception reporting and stack-overflow detection and
handling. Overall, these change improve system robustness and runtime
information.
- (added) two new (and somewhat arcane) Shred methods to support "extreme
shredding" use cases:
----
int childMemSize( int sizeInBytes );
Set size hint of per-shred call stack ("mem") for children
shreds subsequently sporked from the calling shred (NOTE this
size hint does not affect the calling shred--only its
descendants); if sizeInBytes <= 0, the size hint is set to
the VM default. (FYI This is an arcane functionality that
most programmers never need to worry about. Advanced usage:
set size hint to small values (e.g., 1K) to support A LOT
(e.g., >10000) of simultaneous shreds; set size hint to large
values (e.g., >65K) to spork functions with extremely deep
recursion, or to support A LOT (>10000) of declared local
variables. Use with care.)
int childMemSize();
Get the memory stack size hint (in bytes) for shreds sporked
from this one.
int childRegSize( int sizeInBytes );
Set size hint of per-shred operand stack ("reg") for children
shreds subsequently sporked from the calling shred (NOTE this
size hint does not affect the calling shred--only its
descendants); if sizeInBytes <= 0, the size hint is set to
the VM default. (FYI This is an arcane functionality
that most programmers never need to worry about. Advanced
usage: set size hint to small values (e.g., 256 bytes) to
support A LOT (>10000) of simultaneous shreds; set size hint
to large values (e.g., >20K) to spork functions with
extremely lengthy (>10000) statements, including array
initializer lists. Use with care.)
int childRegSize();
Get the operand stack size hint (in bytes) for shreds sporked
from this one.
----
- (added) FileIO.open() now takes "special:auto" as the filename (output
only) to write to a new file with auto-generated filename in the
current directory (based on the current system time, precise to
second;NOTE files created into way at the same system time will have
the same auto-generated filename and may conflict or fail to open).
The "auto" prefix and extension can be set and retrieved using the
following new functions to FileIO:
---
string autoExtension();
Get auto extension for "special:auto" filename generation
(applicable to file writing only).
string autoPrefix();
Get auto prefix for "special:auto" filename generation
(applicable to file writing only).
void autoPrefixExtension( string prefix, string extension );
Set auto prefix and extension for "special:auto" filename
generation (applicable to file writing only).
---
- (fixed) float *=> vec4 now works as intended (instead of producing a
a compilation error)
- (fixed) on Windows and --verbose level SYSTEM or higher, when a chugin
fails to load, instead of displaying a cryptic error code (e.g.,
"reason: 1920"), the error code is translating into an error message
and displayed (e.g., "reason: The file cannot be accessed by the system.")
(azaday)
- (fixed) on certain systems, program ending with a single-line // comment
could crash; affects miniAudicle, WebChucK, Machine.eval() containing
code that ending with a trailing comment
- (fixed) on-the-fly programming (OTF) system was incorrectly cleaning
up file descriptors and leading to instability
- (updated) ConsoleInput.prompt( text ) now no longer prints an extra
space (" ") after prompt text