checking in pdp 0.12.4 from http://zwizwa.fartit.com/pd/pdp/pdp-0.12.4.tar.gz

svn path=/trunk/externals/pdp/; revision=4231

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+todo 0.12.x:
+best to do an intermediate release for documentation. 0.13 is not 
+there yet.
+
+* check reference.txt
+
+
+
+known bugs:
+
+* running out of memory (using delay lines or loops) will likely crash pd. 
+short story: don't, use pdp_control's memlimit for limiting pdp's memory usage.
+* no known other fatal (crashing) bugs. please let me know if you find one.
+
+
+pdp/libpdp remark:
+i'm working on a version 2 of pdp. until that is finished, pdp proper will
+probably be frozen, except for bug fixes.
+
+
+todo 0.13:
+
+* yves shm code
+* make fobs (all c object code usable in packet forth should be wrapped (automaticly??))
+* pdp_xwindow event handling is not thread safe (fixed ?)
+* fine tune udp protocol
+* solve scheduling probs: pd+3dp = ok, pd+pdp+(3dp) = not 
+(lots of frags -> video slow, few frags -> audio drops. 
+pdp threading is not implemented everywhere and is a problem for feedback stuff. think about 
+a synchronous dropping scheme (central point of failure), like for 3dp. most of the threading
+problems could be solved with the new threadsafe pd 0.37 -> check this out)
+
+* add source type to source objects (noise,plasma,constant,...) (solve with forth)
+* pdp_crop/pad
+* seed plasma
+* reorganize headers to cut down compile time (done for core stuff, move pd objects to forth)
+* fullscreen x command -> add window manager suppression
+* where to solve autoconvert? per type, or central in pdp_base? 2 cases:
+- template based autoconvert: in pdp_base
+- compatibility based autoconvert: i.e. pdp_add (solve in base: move_passive)
+* finish high level packet conversion:
+- move 8bit images to packet level (iow: cleanup pdp_qt, pdp_v4l, pdp_xv) (solve with forth)
+- add bitmap packet support to source modules (optim for pdp_opengl usage)
+(solve with sliceforth: pdp image processing should become independent of image encoding: at least
+packed 8/16 rgb(a), and all planar rgb/yuv formats should be well supported: sliceforth feeders)
+- get rid of pdp_type* methods
+* fix mac/linux name differences (use pdp_video, pdp_movie, pdp_window)
+* pdp_xv framerate doc + pwc addons
+
+todo 0.14:
+
+* stress test the memory manager. it looks like there's a bug that pops up after running for a while
+* enable audio output on bttv cards in pdp_v4l
+* fix cache slicer objects + thread problems (fixed in sliceforth)
+* derive as much classes as possible from pdp_base class (obsolete: use forth instead)
+* displacement warp, substitution warp, refraction warp, timespace warp, wormhole warp
+* check the use of varargs for image processing dispatching routine (obsolete: forth)
+* more scopes
+* 2D affine transforms parametrized by vectors (center, x-axis, y-axis) (np1 + matrix processing objects)
+* some abstractions around pdp_cheby (colour shape, ...)
+* efficient rescalers: pdp_double pdp_halve (+ efficient arbitrary scaler in sliceforth)
+* move float color conversion and float<->fixed point conv code to system
+* crop, shift (pad+scroll)
+* solve biquad (blur) mmx boundary init prob (bands at edges: solve with proper init?) (sliceforth)
+* optimize blur effect (1 pole ? / dependency stalls) (sliceforth)
+* jpeg/png packet and streaming support (pdp_netsend / pdp_netreceive : binary compat issues!!)
+* find out why resampling code (warping) is so slow (reg->mem->reg->mem stalls?) (solve in sliceforth)
+* mmx profiling (done: sliceforth)
+* add audio resampling in pdp_qt~
+* use pd_error instead of post for errors
+* ascii art packet processors
+* 3D time space interpolation
+* colour keying
+* motion tracking
+* moebius transforms
+* type multiplexing: find a way to use the same name for packet processors. (solved in forth: polymorhpy)
+i.e. pdp_add should add images, but also vectors, ascii packets, textures,...
+
+experimental stuff
+
+* modify 2D rotation to be used as arbitrary rotation (givens)
+* add 3D rotation
+* frame rate limited delay line (burst delay?)
+* optimize resampling code (mipmapped packed 16bit format?)
+
+* better type handling
+
+core is in place. todo:
+- better (tree) search algorithm (breadth first + cost)
+- add more converters
+
+