ftgentmp
Prev | Orchestra Opcodes and Operators | Next

## ftgentmp

ftgentmp — Generate a score function table from within the orchestra, which is deleted at the end of the note.

## Description

Generate a score function table from within the orchestra, which is optionally deleted at the end of the note.

## Syntax

    ifno ftgentmp ip1, ip2dummy, isize, igen, iarga, iargb, ...

## Initialization

ifno -- either a requested or automatically assigned table number above 100.

ip1 -- the number of the table to be generated or 0 if the number is to be assigned, in which case the table is deleted at the end of the note activation.

ip2dummy -- ignored.

isize -- table size. Corresponds to p3 of the score f statement.

igen -- function table GEN routine. Corresponds to p4 of the score f statement.

iarga, iargb, ... -- function table arguments. Correspond to p5 through pn of the score f statement.

| Note
Csound was originally designed to support tables with power of two sizes only. Though this has changed in recent versions (you can use any size by using a negative number), many opcodes will not accept them.

## Examples

Here is an example of the ftgentmp opcode. It uses the file ftgentmp.csd.

Example 308. Example of the ftgentmp opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

    <CsoundSynthesizer>
    <CsOptions>

    </CsOptions>
    <CsInstruments>

    sr = 44100
    ksmps = 128
    nchnls = 2
    0dbfs = 1

    instr 1
    ifno  ftgentmp  0, 0, 512, 10, 1
    print ifno
    endin

    instr 2
    print ftlen(p4)
    endin

    </CsInstruments>
    <CsScore>
    i 1 0 10
    i 2 2 1 101
    i 1 5 10
    i 2 7 1 102
    i 2 12 1 101
    i 2 17 1 102
    e
    </CsScore>
    </CsoundSynthesizer>

The output of this csd shows that the tables are destroyed after the instrument instances that created them terminates, causing an init error if the tables are queried.

    SECTION 1:
    new alloc for instr 1:
    ftable 101:
    instr 1:  ifno = 101.000
    B  0.000 ..  2.000 T  2.000 TT  2.000 M:  0.00000  0.00000
    new alloc for instr 2:
    instr 2:  #i0 = 512.000
    B  2.000 ..  5.000 T  5.001 TT  5.001 M:  0.00000  0.00000
    new alloc for instr 1:
    ftable 102:
    instr 1:  ifno = 102.000
    B  5.000 ..  7.000 T  7.001 TT  7.001 M:  0.00000  0.00000
    instr 2:  #i0 = 512.000
    B  7.000 .. 12.000 T 11.999 TT 11.999 M:  0.00000  0.00000
    INIT ERROR in instr 2: Invalid ftable no. 101.000000
    #i0     ftlen.i p4
    instr 2:  #i0 = -1.000
             B 12.000 - note deleted.  i2 had 1 init errors
    B 12.000 .. 17.000 T 17.000 TT 17.000 M:  0.00000  0.00000
    INIT ERROR in instr 2: Invalid ftable no. 102.000000
    #i0     ftlen.i p4
    instr 2:  #i0 = -1.000
             B 17.000 - note deleted.  i2 had 1 init errors

## Credits

Authors: Istvan Varga
2005

Prev | Up | Next
ftgenonce | Home | ftlen