path: root/externals/gridflow/ChangeLog

/* $Id: ChangeLog 4755 2009-11-05 04:24:29Z matju $ */

version 0.9.7 (...):

version 0.9.6 (2009.11.02):

 * MAJOR revision of the manual (no more xml nor html: all helpfiles)
 * documented several dozen undocumented classes
 * revised all documentation content
 * installation instructions are now in ./README instead of doc/install.html
 * added [gf/canvas_filename] [gf/string_replace] [gf/canvas_count]
 * added [gf/canvas_getpos] [gf/canvas_setpos] [gf/canvas_edit_mode]
 * added [gf/canvas_setgop] [gf/canvas_xid] [gf/canvas_loadbang] etc
 * added [doc_h] [doc_c] [doc_cc] [doc_i] [doc_ii] [doc_o] [doc_oo]
 * added [doc_m] [doc_also] [doc_editmodebang] [doc_pos]
 * added examples/pinwheel.pd, examples/radial_blur.pd
 * added examples/operator_spectrum.pd
 * [#change]: now takes an argument just like [change]
 * [#in x11]: fixed some bugs and set out_size to a sensible default.
 * removed [#camera_control], [#camera_old], [#centroid_in_pd]
 * removed [count], [condition]
 * [#window]: added outlet
 * [#swap]: added optional argument
 * [var.#]: added optional argument
 * [#spread]: added optional argument
 * [#to_literal]: write numbertype
 * [#fade_lin]: accept grid args
 * [#posterize]: made the optional argument really optional...
 * renamed source files
 * rewrote GEM support without using GEM headers
 * removed --gem-include
 * removed bundled/Base (was a copy of GEM 0.91 include files)
 * [#from_pix]: much faster
 * [#to_pix]: support 3-channel rgb input
 * [#out x11]: some video modes are now much faster than before
 * [args]: don't [loadbang] it anymore: it's automatic now.
 * [args]: removed attribute outlet: it's automatic now.
 * removed [send39] : GridFlow requires PureData 0.40 these days.
 * added GridFlow About in Help menu
 * GridFlow menu items available in all windows instead of just the main

version 0.9.5 (2009.10.18):

 * added [gf.print] (aliased to [print])
 * added [cv/#Ellipse], [cv/#HarrisCorner], [cv/#KMeans]
 * renamed goop.pd to surface_tension.pd
 * [#in quicktime]: "get" also produces messages "framerate", "height",
   "width", "depth", "codec".
 * added [#draw_hpgl], [#reinterval], [#cluster_avg]
 * added [norecurse], [gf.error]
 * [#color]: added bang
 * [#inner]: fixed infinite loop bug with large right-inlet grids.
 * [#transpose]: fixed crash with zero-sized grids.
 * [receives]: "empty" prefix automatically turned into "" (no prefix).
 * [#in grid] and [#out grid]: fixed several bugs
 * [#make_cross] can make rectangular crosses
 * [demux] alias removed (please use [shunt])
 * renamed every [cv.Something] to [cv/#Something] to avoid any future
   nameclashes with Loïc's library.
 * automatically removes artificial stacksize limits of the OS that may
   have caused segfaults in the last year or so, if you didn't use
   ulimit -s unlimited or somesuch
 * added [# c2p] and [# p2c] (polar transforms)
 * added new examples: polar.pd, radial_blur.pd
 * fixed more OSX bugs
 * fixed [#grade] bug (thanks to mescalinum)
 * removed support for gem 0.89 and some 0.90 versions
 * renamed [#labeling] to [#labelling] (kept an alias)

version 0.9.4 (2008.07.04):

 * [#convolve] takes more RAM but gets faster on OSX
 * added [listread], [receives], [ascii_to_f], [plotter_parser], [list.==]
 * added [cv.Invert], [cv.SVD], [expect], [#hello]
 * [plotter_control] supports most other commands and uppercase selectors
 * added [#in dc1394]
 * added [#window] (a shortcut for a [spigot] and a [#out window])
 * rewrote [listflatten] (was removed in 0.9.2)
 * [#camera] greys out unavailable options and supports dc1394
 * added "GridFlow index" in Help menu (like Pd's right-click on blank)
 * made arguments optional in [#border] [#draw_image] [#draw_polygon]
 * [#draw_polygon]: added attribute "draw" (fill, line)
 * [#draw_polygon]: added attribute "omit" (none, last, odd)
 * support whitespace in symbols again (after bug in 0.9.2)
 * fixed ppm loader
 * [#fft]: added attribute "real"
 * added example frequency_mask.pd

version 0.9.3 (2008.06.06):

 * fixed bugs introduced in 0.9.2 relative to: [#in] loop, [#in] initbang,
   [display] selector, [#out] initbang, [#print], [#labeling], [#out window]
 * added example patches instant_blur.pd game_of_life_gem.pd
 * added [class_exists]
 * added [#in quicktimecamera]
 * fixed some example patches
 * fixed some recent OSX compilation problems
 * fixed OSX QuickTime decoding on Intel (endianness problem)
 * fixed existing GEM 0.89 and 0.90 support
 * added GEM 0.91 support (GemBase::isRunnable)
 * --gem-source renamed to --gem-include
 * --gem-include=bundled can compile gem support without gem source code
 * swapped outlets of [#import_pix]
 * added SDL mouse position event report (but buttonup does not work)
 * added SDL key report
 * added some SDL options: title, hidecursor, partial setcursor
 * added SDL fullscreen (use key f, F11 or Escape)
 * x11: replaced method "transfer" by method "shared_memory".

version 0.9.2 (2008.05.02):

 * removed libruby dependency

version 0.9.1 (2008.04.16):

 * switched from CVS to SVN
 * removed LTIlib support
 * x11: added "warp" method for moving mouse cursor around
 * removed all Ruby code (rewritten in C++ or Pd)
 * rewrote PPM support. now relies on libnetpbm.
   (apt-get install libnetpbm10-dev)
 * removed broken Targa support
 * removed timelog feature in [#in]/[#out] (redundant)
 * removed [joystick_port], [SoundMixer], [pd_netsocket], [rubyarray], [ls],
   [system], [exec], [regsub], [memstat], [#edit], [peephole], [listmake],
   [gridflow]/[#global], [sendgui], [realtimer], [bindpatcher], [renamefile]
   (contact me if you need any of them)
 * added [gf.error], [usertime], [systemtime], [tsctime]
 * added method to_ascii in [#import]
 * [display] word-wrap
 * [#import] defaults to per_message mode
 * removed support for ~/.gridflow_startup and GridFlow.data_path
   (contact me if you need them)

version 0.9.0 (2007.11.20):

 * new object classes: [#slice], [#sort], [#line_to_polygon].
 * rewrote some object classes from Ruby to Pd.
 * split compilation of the LTIlib support allows to compile
   it with reasonable amounts of RAM.
 * new classes: [seq_fold], [#seq_fold], [#.var], [#noise_gate_yuvs]
 * updated [#camera]
 * added PWC-specific options: framerate white_mode white_red white_blue
   white_speed white_delay auto_gain compression noise_reduction
 * added "pwc" option in [#camera], for enabling PWC-specific options.
 * colorspace conversion directly in [#in videodev] (faster)
 * grid messages no longer contain dim and numbertype (just a pointer)
 * GridOutlet: added set_chunk (so set_factor is obsolete)
 * removed GridFlow menu
 * faster [#inner] for small matrix sizes
 * GridFlow won't work in plain Ruby anymore (without Pd)
 * removed [pd_netsend] [jmax_udpsend] [jmax4_udpsend] [pd_netreceive]
   [jmax_udpreceive] [jmax4_udpreceive] [printargs] [rubyprint]
 * removed Type.rb and Contract.rb and their use in videodev.c
 * [#in quicktime]: added workaround for jpeg_quality problem
 * [#in quicktime]: added method "get", that produces message "frames"
   that gives the number of frames in a video
 * [#out]: added method "autoclose"
 * removed old documentation: *-icon.png
 * renamed [#export]        to [#to_float]
 * renamed [#export_list]   to [#to_list]
 * renamed [#export_symbol] to [#to_symbol]
 * renamed [#export_pix]    to [#to_pix]
 * fixed 256MB limit bug
 * fixed reassign bug

version 0.8.4 (2006.10.12):

 * resuming support for Ruby 1.8 !
 * added compatibility with more recent versions of Ruby 1.9
 * added compatibility with more recent versions of GCC 4.x
 * much more LTIlib support! (a few dozen more object classes)
 * [#camera]: improved
 * rblti supports ltilib 1.9.15 and gcc 4
 * new object classes: [route2], [#polygon_each_edge],
   [#polygon_moment], [#polygon_radial_map], [#polygon_comparator],
   [#moment_polar].
 * new float-only numops:   sin   cos   tanh   exp   log atan2
 * new float-only vecops: C.sin C.cos C.tanh C.exp C.log
 * [#fft] can do RGB (per channel)
 * can show added inlets/outlets at runtime.
 * can remove inlets/outlets at runtime (and erase them from screen).
 * much faster videodev !!!

   (also unfinished [#edit_polygon] and [#draw_rect]).

version 0.8.3 (2006.04.02):

 * added Makefile rules for downloading+installing ruby 1.9
 * new numops: weight rol ror
 * new vecops concept helps with complex numbers
 * new vecops: C.* C.*conj C./ C./conj C.sq- C.abs-
 * [#convolve]: added attr "wrap", "anti"
 * [#inner]: faster!
 * [#shunt]: added attr index,mode,lo,hi
 * now also works with older (non-CVS) versions of GEM
 * new object classes: [#fastblur], [#t], [#rgb_to_rgba], [#rgba_to_rgb],
   [#change], [#swap], [#polygon_perimetre], [#polygon_area], [args],
   [#gamma], [#saturation]
 * now autodetects the .gz suffix (goes with ppm/targa/grid formats)
 * moved the rest of pd_help/ to doc/flow_classes/
 * automatic attribute generator for Ruby

version 0.8.2 (2006.03.17):

 * Ruby 1.9 required
 * removed jmax2pd
 * fixes of various compilation problems
 * new object classes: [realtimer], [#export_pix], [#import_pix],
   [#border], [#fft]
 * beginning support for LTIlib. new object classes:
   [lti], [lti.meanShiftSegmentation], etc.
 * added "load" method in [gridflow]. (thanks Claude)
 * automatic attribute generator for C++
 * added "help" and "get" methods to *all* classes (!!!)
 * no more "make install"
 * not using mkmf.rb (ruby's makefile generator) anymore
 * removed --debug-harder (use "valgrind" instead)

version 0.8.1 (2006.02.20):

 * [ls] now supports wildcards: ? [] * **
 * [#color] has new method: delegate
 * added [regsub], [memstat], [listfind], [sendgui]
 * x11: removed methods: draw,autodraw; added: use_shm,title
 * examples : added markov.pd, bounce.pd, doodle.pd, mechanics.pd
 * [#pack],[#unpack] now default to 2 values
 * new numops: clip+,clip-
 * fix for shared memory bug in [#out x11]
 * added [#out tk]
 * added [#out opengl] (using GLUT, hackishly)
 * [unix_time] behaviour changed. (see manual)

version 0.8.0 (2005.06.06):

 * removed support for jMax 2.5 and jMax 4.1
 * added GCC 3.4 support
 * added AMD64 support
 * added support for puredata "datastructure" pointers (aka gpointer)
 * changing the @-prefix for a #-prefix, where the old prefix still works
   (the old syntax is backwards-compatible,
    the new syntax is forwards-compatible)
 * 13 object-classes rewritten from Ruby to Pd abstractions
 * merged [@],[@!] -> [#] and added message "op"
 * removed all one-input ops (see next...)
 * new two-input ops: abs- sq- avg hypot sqrt rand
 * [#fold],[#scan]: removed seed arg and right outlet; added msgs "op" and "seed"
 * [#inner],[#convolve] : added msgs "op" and "seed"
 * [#inner],[#convolve] : removed three first args (usually * + 0)
 * [#inner] : removed middle inlet
 * major changes to the bridge API (Ruby<->PureData)
 * project "Linux Devices For Ruby" got merged in, as devices4ruby/
 * source code cleanup
 * internals: split Grid into Grid+GridPtr
 * internals: GridObject no longer manages GridOutlet
 * internals: added classes P,PtrGrid,...
 * internals: beginning to use C++'s Standard Template Library (sometimes)
 * [gridflow] now has "formats" msg (to list available formats)
 * [#store] added msg "op"
 * [#out x11] removed flag "verbose"
 * some spaces may now be omitted in gf-lists. e.g.:
   ( ( 2 1 ) ( ) ) ( 3 4 ( 5 ) ) can be shortened to: ((2 1) ()) (3 4 (5))
 * new object classes:
   [display], [#reverse], [#unpack], [#centroid2], [ls], [renamefile], [unix_time],
   [exec], [plotter_control], [#text_to_image], [#hueshift], [rubyarray]
 * in pd_examples added Alx's epicycloid.pd, scratch_video.pd, threshold.pd
      and Matju's goop.pd
 * some new/updated help files by St�hanie Brodeur & Darsha Hewitt

version 0.7.7 (2004.08.24):

 * GridFlow runs on MacOS 10.2 with PureData 0.37
 * updated drag_rectangle.pd, nervous_video.pd, fire.pd, color_correction.pd
 * updated feedback_fractal.pd (added morphing)
 * added pd_examples/waves.pd, pd_examples/sand.pd
 * added pd_examples/color_detect.pd (supersedes chroma_key.pd)
 * added pd_examples/spectrogram.pd, pd_examples/photo_pianoroll.pd
 * removed [rtmetro] (obsolete)
 * [@store]: added methods: put_at, reassign
 * [pingpong]: added $1
 * [demux] renamed to [shunt] and extra optional arg added (for initial value)
 * new object classes:
   [range], [#mouse], [#pack], [#color], [bindpatcher],
   [#camera], [#fade_lin], [#peephole]
 * videodev: added method "get"
 * [@out quartz] now works properly
 * [@downscale_by] accepts any number of channels
 * [@inner2] removed; instead use [@transpose] with [@inner]
 * videodev: "transfer" message allows to change the queue's length
 * quicktime(hw): added messages "parameter", "framerate", "size"
 * quicktime(hw): fixed encoding bug
 * png: fixed memory leak
 * ./configure --lite disables float32 float64 int64
 * ./configure --verbose prints useless details
 * doc: rewrote installation instructions
 * x11: fixed memory leak in resizing window
 * on MacOS 10 [@out window] now defaults to [@out quartz]
 * doc: added credits section
 
version 0.7.6 (2004.03.22):

 * GridFlow runs on MacOS 10.2 (only with jMax 2.5)
 * [@out quartz] makes a native MacOS (Cocoa+Quartz) window (warning: very buggy)
 * support for Apple QuickTime movie decoding (format/quicktimeapple.c)
 * file suffix detector is now extensible
 * added: Ruby interface for libUSB (base/usb.c)
 * x11: now emits "keypress" and "keyrelease" messages
 * [@downscale_by] now supports 4 channels (therefore [peephole] does too)
 * fixed bugs in: x11, @draw_image, @import, @export, ...
 * "open x11" now allows any DISPLAY spec
 * now includes the pictures used in the examples
     (not a separate download anymore)
 * [@out x11 here override_redirect] (override window manager; be careful with this)
 * [pd_netsocket] does like [netsend]/[netreceive] but two-way
   (warning: not complete yet)
 * support for nested lists in incoming messages
 * new object classes:
   [delcom_usb]: support for Delcom USB I/O controller
   [joystick_port]: support for linux joystick drivers
   [foreach], [rubysprintf], [listflatten]
   [messageprepend], [messageappend], [@transpose]
   [@fade], [@centroid]
   jMax emulation: [listmake], [listlength], [listelement], [listsublist]
   jMax emulation: [listprepend], [listappend], [listreverse], [oneshot]
   jMax emulation: [inv+], [inv*]
 * Pd main window: adding GridFlow menu, Ruby/Tcl evaluators (with command-history)
 * added bin/jmax2pd (converts .jmax files to .pd files)
 * ported all .jmax examples to .pd (using jmax2pd) (20 out of 20)
 * support for variable number of inlets/outlets (only with PureData)

version 0.7.5 (2003.09.28):

 * type aliases: int32,i32,i; int16,i16,s; uint8,u8,b; float32,f32,f
 * added support for float64 (alias f64, d)
 * added support for int64 (alias i64, l)
 * doc: added number type table
 * @convolve: supports even-sized grids
 * fixed bug: puredata gf clock ran way too fast
 * rewrote the profiler subsystem (and removed bugs)
 * @scale_by: now works with any number of channels
 * renamed samples/ to jmax_examples/
 * Algebraic Properties Descriptions (internal, used for accelerations)
 * @convolve,@outer,@for,@inner,@draw_polygon: much faster
 * quicktime: support for pluggable codecs (eg: dv, divx, rpza, ...)
 * quicktime: fixed more bugs
 * quicktime: major speed increase
 * quicktime: added "colorspace" option
 * videodev: fixed bugs
 * videodev: removed obsolete option "noinit"
 * videodev: added option "colormodel" (especially because of new camera drivers)
 * sdl: added automatic resizing of window
 * png: read support
 * jMax bridge: more stable than ever
 * PureData bridge: *much* more stable than ever
 * Operator1, Operator2 renamed to Numop1, Numop2
 * x11: now also called "window", so you can write "@out window", "open window"
 * new object classes:
     @draw_image: picture-in-picture, with alpha blending, etc
     jmax4_udpsend: send to a jMax 4.0.x system via UDP
     jmax4_udpreceive: receive from a jMax 4.0.x system via UDP
     pd_netsend: send to a pd system via UDP
     pd_netreceive: receive from a pd system via UDP
     @eight: (like @four, but with eight of them ;-)
     peephole: like [@out x11] but as inset of a patcher (jMax 2.5 only)
 * support for upcoming jMax 4.1
 * "open file" autodetects how to handle a file, by filename suffix

version 0.7.2 (2003.04.24):

 * fixed bugs in: make install, jpeg reading
 * added support for float32
 * added direct .jmax decoding
 * added direct .pd encoding
 * pd examples moved to separate directory
 * ported some .jmax examples to .pd (automated) (8 out of 20)
 * added motion_detect.pd
 * new classes: demux, and more jmax emulations
 * @in,@out: keyword "option" may be omitted
 * configure: added --ruby-prefix
 * adding custom C++ pre-preprocessor
 * better type checking of message arguments (better error reporting too)
 * @print supports 3 dimensions, and msg "base" with arg 2,8,10,16
 * can now write loadbang-messages into an object box using the comma
 * major cleanup of the source code
 * added operator *>>8 (multiplication by value then division by 256)
 * new classes: @rgb_to_yuv, @yuv_to_rgb
 * @rotate now works with multiple axis (can work on 3D points, etc)

version 0.7.1 (2003.03.24):

 * fixed important bugs (crashes and such)
 * @store,@ can now receive in inlet 1 while sending from outlet 0.
 * @, when inlet 1 grid size is small but not 1, is now much faster.
 * added memcpy() usage logging (see profiler_dump)
 * added examples: drag_rectangle.jmax, plot.jmax, eclipse.jmax
 * added example: cellular_1d.pd
 * added classes: fork, jmax_udpsend, jmax_udpreceive
 * added classes: @rotate, @remap_image, @type
 * added operators: gcd,lcm (common divisors/multiples)
 * quicktime: added encoding, added seek, fixed bugs
 * @in inlet 1 tells frame number (int), end-of-file (bang)
 * @in: added: set, option loop (controlling auto-rewind)
 * updated cross_fade.jmax (much faster)
 * @two,@three,@four allow inlet 0 bang trigger
 * configure: simpler config for jMax 2.5
 * PD help patches (by Uli Berthold)
 * PD: "make install" takes care of help patches and library
 * CVS web interface on artengine.ca (thanks to Alex)

version 0.7.0 (2003.02.01):

 * new classes: @cast, @join, @ravel, @grade, @perspective
 * new grid protocol supports several number types (added uint8,int16)
 * added number type support in most classes
 * added "option cast" for @in in some formats
 * can now specify number types in grid literals
 * added some MMX support (accelerates by 0%..40%)
 * @import: added optional 2nd arg specifying type.
 * @import: can convert symbols to grids of their ascii codes.
 * new [@import per_message] yields one grid per incoming message
 * [fps]: added options "user" "system" "cpu" for selecting clock
 * aalib: added options autodraw, draw, dump
 * aalib: added raw input (two channels: characters, attributes)
 * x11: added support for 256-color mode using a private colormap.
 * x11: added "use_stripes" for alternate 256-color rendering.
 * fixed problems with earlier versions of Ruby (like 1.6.2)
 * new samples: polygon.jmax
 * videodev_effects.jmax: added sort-effects, centre-of-gravity-tracking
 * the time profiler is back to working !!!
 * @scale_by, @downscale_by: added right inlet, for configuration
 * @store is a bit faster
 * ppm: accelerated by large amount
 * @outer,@inner,@inner2,@fold accelerated by obscene amount

version 0.6.5 (2003.01.10):

 * can now encode Targa-24, Targa-32, JPEG-24
 * can now output through aalib (ascii art library)
 * fixed problems with libruby.a
 * tested with the new version of Ruby (1.8)
 * new classes:
	fps, @rgb_to_greyscale, @greyscale_to_rgb, @solarize,
	@complex_sq, @export_symbol, @draw_polygon,
	@apply_colormap_channelwise
 * new class FPatcher, a ruby patcher/abstraction system
 * @scale_to,@contrast,@spread,@posterize now available in
	PureData & Ruby; they also now accept arguments.
 * [@scale_to]: back to working; inlets "height" and "width" merged
 * [route grid_begin] replaced by [route grid]
 * [route grid_end] replaced by [@finished]
 * Most everything is 10-50% faster
 * changes in the internal transmission of grids
 * new two-input operators: div, swapdiv, put, ignore
 * compilable on MacOS 10

version 0.6.4 (2002.12.23):

 * can now decode JPEG (using libjpeg.so)
 * many bugs fixed (especially in file formats)
 * operators: log* added; tanh renamed to tanh*
 * @two,@three,@four are no longer specific to the jMax side
 * format grid: option headerless for reading any kind of file
 * format grid: option headerful (revert to actual .grid format mode)
 * fixed problems with GNU C++ version 3
 * format ppm: accelerated writing
 * format modifier gzfile: gzip support also works with [@out]
 * format x11: the "here" specifier is now optional
 * added @checkers
 * [@scale_by {y x}] for different y,x scale factors
 * [@in blah blah] means "open blah blah" -> [@in] (and same with @out)
 * added @downscale_by with or without smoothing
 * format targa: can now decode 32 bit RGBA
 * @layer: combines RGBA foreground with RGB background, yielding RGB.
 * format grid options: endian big, endian little, endian same
 * formats ppm,grid: use 'option rewind' to overwrite same file
	(by default, rewind is no longer done after each frame)
	('option rewind' also rewinds on reading)

version 0.6.3 (2002.12.06):

 * removing the custom leak detector ("Valgrind" program used instead)
 * removed all (?) memory leaks
 * videodev: new options: frequency, transfer [read|mmap], noinit
 * profiler summary code rewritten
 * profiler wrapper code removed
 * x11: option setcursor <0-63>, option hidecursor
 * x11: outlet 0 tells cursor position / button state
 * more C++ification of the code
 * many bugs fixed (especially crashes)

version 0.6.2 (2002.09.17):

 * jMax objects written in (or using) Ruby now can work in PureData too.
 * new format: SDL (portable output to window)
 * can now compile bridges without libruby.so
 * changed grid-protocol: added direct object-to-object streaming.
 * bug: gridflow's clock tick back to a decent value (sorry)
 * all inlets supporting grids also convert int/float as 0-D grids
 * @fold and @scan now accept grids in right inlet and constructor
 * @convolve is 2-3 times faster
 * %,swap% are now called rem,swaprem; new %,swap% is the true modulo.
 * @for now allows vectorial from/to/step values
 * @identity_transform removed, change to eg: [@for{0 0}{240 320}{1 1}]
 * PD users: grid literals are written like:
	[@for ( 0 0 ) ( 240 320 ) ( 1 1 )] with all those spaces
 * @inner,@inner2,@convolve can take right inlet grid as 4th argument
 * re-enabled and improved the memory leak detector (use --debug)
 * fixed many bugs and leaks
 * fixed bugs in @store
 * added sample: zoom.pd

version 0.6.1 (2002.08.29):

 * now compiling GridFlow as C++ (replacing C)
 * now you can use Ruby 1.7, which is faster
	note: if you do so, make sure your version is dated 2002
 * new objects: rubyprint, printargs, @print, @scan, @inner
 * new format: apple quicktime (using libquicktime.so)
 * @in gzip support (example: "open ppm gzfile teapot.ppm.gz")
	also works with targa and grid
 * BitPacking now supports 1 to 4 channels instead of just 3
 * using mkmf.rb makefile generation; some MSWindows support thru Cygwin
 * added geiger counter simulator in [rtmetro]
 * libruby.so is only needed when using GridFlow through jMax
 * now can do grid literals in @ and @outer, like [@ + {0 1}]
 * syntax of @redim,@import changed from [@redim 2 3] to [@redim {2 3}]
 * "3 3 # 1 0 0 1" into inlet does automatic @redim, for all objects
 * grid literals accept {2 3 # 1 4 5} as an implicit [@redim {2 3}]
 * objects rewritten in Ruby language: @in, @out
 * updated samples, templates, documentation.
 * fixed bugs

version 0.6.0 (2002.07.31):

 * THIS IS AN EXPERIMENTAL BRANCH (VERY BUGGY)
     REAL PROJECTS SHOULD USE VERSION 0.5.0 INSTEAD
 * GridFlow rewritten as a plugin for Ruby instead of jMax.
 * GridFlow now includes a Ruby-for-jMax bridge.
 * you need Ruby 1.6.6 (including libruby.so) or compatible
 * you don't need GNU Bash anymore (configurator is now a Ruby program)
 * format handlers for .ppm, .tga, .grid rewritten in Ruby
 * merged all Makefiles together, etc.
 * sources are in base/ and format/ instead of c/src/
 * many bugs removed, many bugs added.
 * will read ~/.gridflow_startup if it exists

version 0.5.0 (2002.06.08):

 * big changes to the internals (especially use of macros)
 * can compile without X11; added --no-x11 in ./configure
 * removed support for jMax 2.4
 * auto-detects jMax 2.5 and jMax 3.0
 * @inner renamed to @inner2 (new, proper @inner coming soon)
 * faster unary operators
 * added unary operator: sq (faster squaring)
 * further separation of GridFlow from jMax
 * major format API changes (added Stream class)
 * format "grid" now supports 8 bits per value
 * support for HeroineWarrior's LibMPEG3 (reading + seeking)
 * libmpeg.so (Greg Ward's) now also looked up as "libwardsmpeg.so"
 * added objects: rtmetro, pingpong
 * Moved CVS repository from Hostname.2y.net to Artengine.ca
 * updated samples

version 0.4.1 (2002.01.02):

 * cvs repository now has public access
 * now can run configure without jmax/fts being present
 * standalone version now works on Silicon Graphics and Corel Netwinder.
 * MPEG format readonly (single file at a time; mpeg video layer only)
 * grid TCP: non-blocking read
 * fixed all known memory leaks
 * X11 Shared Memory now disables itself properly on remote display
 * updated help files
 * updated help screenshots in the manual
 * fixed profiler bugs
 * fts emulation moved to c/src/ and tests moved to tests/

version 0.4.0 (2001.11.28):

 * package name changed from "video4jmax" to "gridflow"
 * documentation *rewritten*, more precise, more structured
 * documentation format is now XML (includes HTMLized version)
 * can now compile without jmax/fts (if you need quicker testing...)
 * added format "grid" for storing any kind of grid to disk.
 * added TCP client/server socket support (with format "grid" only)
 * added (timewise) profiler
 * @convolve now takes up to three arguments
 * Format API changes again
	* "connect" merged into "open"
	* "size" merged into "option"
	* @video_out merged into @out
 * format videodev can now do full framerate (instead of just half)
 * added X11 Shared Memory support (faster image transfer locally)
 * added @scale_by for quick scaling by integer factors.
 * @identity_transform, @scale_to are much faster.
 * many other accelerations

version 0.3.0 (2001.11.04):

 * reworked File Format API
 * grid objects now all accept lists of integers (auto-convert to 1D grid)
 * many accelerations (incl large speedup on chains of binary operations)
 * transformed @video_out (X11) into a "File Format" (really) and:
	* allows multiple displays
	* auto-resizing window
	* can set output as wallpaper
	* can read from the screen (screenshot)
	* @video_out now a backward-compatibility wrapper
 * format videodev now uses double buffer mmap (somewhat faster)
 * @video_in_file, @video_out_file renamed to @in, @out (with aliases)
 * new objects:
	@convolve, @inner, @for
 * more samples: Fire, Ripple, Game of Life, Chroma Key, Convolve, Saturation
 * much improved samples: Color Correction, Linear Transform.
 * use [@store uint8] for low-ram storage of values 0-255.
 * videodev: added option norm 0=pal 1=ntsc 2=secam 3=auto

version 0.2.2 (2001.08.15):

 * @video_out auto-updates on X11 ExposeEvent
 * updated documentation and help
 * fixed installation/config of help and summary
 * split BitPacking module from @video_out
 * added support for BTTV input (that is, using mmap() command)
 * new videodev options: channel,tuner,contrast,hue,etc.
 * now with 30 binary operators, and 3 unary operators
 * added many new samples
 * new objects:
	@!, @fold, @outer, @dim, @redim,
	@posterize, @contrast, @two, @three,
	@identity_transform, @scale_to, @spread

version 0.2.1 (2001.08.01):

 * added private CVS repository on hostname.2y.net
 * added configuration script (detects video4linux 1.x)
 * added documentation in HTML format
 * added File Format API
	* format "ppm": PPM P6 RGB24 support read-write
	* format "targa": Targa RGB24 support read-only
	* format "videodev": Video4linux read (using read() command only)
 * @store no longer slowing down its downstream
 * many other accelerations
 * Tuple changed to Dim; Index removed
 * Grid element type is typedef Number
 * @ supports grids in right inlet
 * now there are 20 binary operators

version 0.2.0 (2001.05.05):

 * package name changed from "video" to "video4jmax"
 * new kind of post() cancels repetitive log entries
 * major modifications to existing objects
 * new "grid transmission system"
	(Tuple,Index,GridInlet,GridOutlet,GridObject)
 * vout -> @video_out
 * vin_file -> @video_in_file
 * vout_file -> @video_out_file
 * added @import, @export
 * added @, @store

version 0.1.1 (2001.04.03):

 * removed vout's grab
 * vout width and height parameters swapped
 * vout_file class is mostly like vout but writes to a file in PPM format.

version 0.1.0 (2001.03.14):

 * fixed the bits_per_pixel bug
 * merged in some other variations on the main sample
 * included Christian's makefiles for jmax 2.5

version 0.0.7 (2001.03.08):

 * vout should support most types of RGB visuals now
 * autodraw now works: 0=none; 1=page; 2=line; 3=pixel
 * less global variables
 * putting all of this under the GPL

version 0.0.5 (2001.03.05):

 * vout class, two params: width, height; 24-bit BGR only; refresh by
finishing scanline or sending bang; "grab" (hack); "reset" for resetting
the pixel pointer.



a very short history of GridFlow:

video4jmax 0.1 (mar 2001): sending int messages to a window in jMax
video4jmax 0.2 (may 2001): grids
GridFlow   0.4 (nov 2001): xml manual; can compile without jMax
GridFlow   0.5 (jun 2002): mpeg; cvs goes to artengine.ca
GridFlow   0.6 (aug 2002): ruby; c++; literals
GridFlow   0.6.2 - 0.6.5 : pd; jpeg; big speedups; 1 grid = 1 message
GridFlow   0.7.0 (feb 2003): number types; mmx; other big speedups
GridFlow   0.7.2 - 0.7.5 : pd support gets stable; float grids; @draw_image; source_filter.rb
GridFlow   0.7.6 to 7 (2004): permanently switching from jmax to pd; #pack, #color, #camera
GridFlow   0.8 (2005): attributes; # prefix
GridFlow   0.8.1 to 4 (2006): LTI; FFT; complex numbers; GEM pix compatibility
GridFlow   0.9.0 (2008): removing Ruby, removing LTI, adding OpenCV
GridFlow   2.0 : ...