aboutsummaryrefslogtreecommitdiff
path: root/externals/grill/flext/notes.txt
blob: 93c71227fcde11b9f269d0df7cb49c78838390cc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
flext - C++ layer for Max/MSP and pd (pure data) externals

Copyright (c) 2001-2005 Thomas Grill (gr@grrrr.org)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.  

----------------------------------------------------------------------------

VARIOUS NOTES:

Platform specific:
- PD does not allow signal and message to go into the same inlet (except leftmost inlet)
- PD: with DSP objects all float messages to the leftmost inlet are converted to signal

Restrictions in compatibility mode:
- Max allows only 9 float/int inlets

Porting to new compilers/platforms:
- enums must be int-sized!!!
- compiler must support bool type
- an STL implementation must exist
- C++ exceptions and RTTI must be enabled

----------------------------------------------------------------------------

KNOWN BUGS:
- Some few external libraries have troubles with flext's global new and delete overloadings.
  In these cases one can switch back to the C library memory operators by defining the FLEXT_NOGLOBALNEW macro before
  inclusion of the flext.h header file (e.g. as a -D compiler option)

- PD: floats into the leftmost inlet of DSP objects can't be used as messages 
  even if there's no signal inlet at all

----------------------------------------------------------------------------

TODO LIST:

- optimizations for object initialization and messaging
- speed up message handling (usage of other containers?)
- SIMD for gcc
- lock-free code for old AMD 64-bit architectures

- update documentation
- add log messages for debugging version
- use PD's t_float and t_int types (or comparable for 32-bit safety)

- add double handlers
- add signal in/out connection query function

- support for Max qelem style

- flext::post and flext::error should print via a worker thread (and should be unlimited in characters)

- manage running threads individually (stop, isrunning?, priority etc.)

----------------------------------------------------------------------------

TESTS TO DO:

- PD: problems with timed buffer redrawing (takes a lot of cpu time)
- hard thread termination upon object destruction doesn't seem to work properly -> crash
- Max rounding bug ... buffer resize could be one sample less!

- PD: figure out what "pointer" messages do and whether they are correctly implemented in flext

- Max buffer~ resize: flext_base::buffer::Frames(): must we use buffer or system sample rate?

- check whether m_dsp gets called upon deletion of a used buffer (PD and MaxMSP may behave differently).
	-> PD does call m_dsp, Max/MSP does not