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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014, 2020 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016, 2019 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;; Copyright © 2018, 2021 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2019, 2020, 2022 Marius Bakke <marius@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages readline)
  #:use-module (guix licenses)
  #:use-module (gnu packages)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages ncurses)
  #:use-module (gnu packages perl)
  #:use-module (guix packages)
  #:use-module (guix gexp)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (guix build-system gnu)
  #:use-module (guix utils)
  #:use-module (ice-9 format))

(define (patch-url version seqno)
  (format #f "mirror://gnu/readline/readline-~a-patches/readline~a-~3,'0d"
          version (string-join (string-split version #\.) "") seqno))

(define (readline-patch version seqno sha256-bv)
  "Return the origin of Readline patch SEQNO, with expected hash SHA256-BV"
  (origin
    (method url-fetch)
    (uri (patch-url version seqno))
    (sha256 sha256-bv)))

(define-syntax-rule (patch-series version (seqno hash) ...)
  (list (readline-patch version seqno (base32 hash))
        ...))

(define %patch-series-8.1
  (patch-series
   "8.1"
   (1 "0i4ikdqgcjnb40y2ss3lm09rq56zih5rzma3bib50dk3d1d4cak8")
   (2 "1p15sfx5xg5k4lam12lyd0givk7dfjddqpnb1jdp3c4clray0nz5")))

(define %patch-series-7.0
  (patch-series
   "7.0"
   (1 "0xm3sxvwmss7ddyfb11n6pgcqd1aglnpy15g143vzcf75snb7hcs")
   (2 "0n1dxmqsbjgrfxb1hgk5c6lsraw4ncbnzxlsx7m35nym6lncjiw7")
   (3 "1027kmymniizcy0zbdlrczxfx3clxcdln5yq05q9yzlc6y9slhwy")
   (4 "0r3bbaf12iz8m02z6p3fzww2m365fhn71xmzab2p62gj54s6h9gr")
   (5 "0lxpa4f72y2nsgj6fgrhjk2nmmxvccys6aciwfxwchb5f21rq5fa")))

(define-public readline
  (package
    (name "readline")
    (version (string-append "8.1."
                            (number->string (length %patch-series-8.1))))
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/readline/readline-"
                                  (version-major+minor version) ".tar.gz"))
              (sha256
               (base32
                "00ibp0n9crbwx15k9vvckq5wsipw98b1px8pd8i34chy2gpb9kpq"))
              (patches (append %patch-series-8.1
                               (search-patches "readline-link-ncurses.patch")))
              (patch-flags '("-p0"))))
    (build-system gnu-build-system)
    (propagated-inputs (list ncurses))
    (arguments
     (list #:configure-flags
           #~(list (string-append
                    "LDFLAGS=-Wl,-rpath -Wl,"
                    (dirname (search-input-file %build-inputs
                                                "lib/libncurses.so")))

                   ;; This test does an 'AC_TRY_RUN', which aborts when
                   ;; cross-compiling, so provide the correct answer.
                   #$@(if (%current-target-system)
                          '("bash_cv_wcwidth_broken=no")
                          '())
                   ;; MinGW: ncurses provides the termcap api.
                   #$@(if (target-mingw?)
                          '("bash_cv_termcap_lib=ncurses")
                          '()))

           #:make-flags
           (if (target-mingw?)
               ;; MinGW: termcap in ncurses
               ;; some SIG_* #defined in _POSIX
               #~'("TERMCAP_LIB=-lncurses"
                   "CPPFLAGS=-D_POSIX -D'chown(f,o,g)=0'")
               #~'())))
    (synopsis "Edit command lines while typing, with history support")
    (description
     "The GNU readline library allows users to edit command lines as they
are typed in.  It can maintain a searchable history of previously entered
commands, letting you easily recall, edit and re-enter past commands.  It
features both Emacs-like and vi-like keybindings, making its usage
comfortable for anyone.")
    (license gpl3+)
    (home-page "https://savannah.gnu.org/projects/readline/")))

(define-public readline-7
  (package (inherit readline)
    (name "readline")
    (version (string-append "7.0."
                            (number->string (length %patch-series-7.0))))
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/readline/readline-"
                                  (version-major+minor version) ".tar.gz"))
              (sha256
               (base32
                "0d13sg9ksf982rrrmv5mb6a2p4ys9rvg9r71d6il0vr8hmql63bm"))
              (patches (append
                        %patch-series-7.0
                        (search-patches "readline-link-ncurses.patch")))
              (patch-flags '("-p0"))))))

(define-public readline-6.2
  (package (inherit readline)
    (version "6.2")
    (source (origin (inherit (package-source readline))
              (method url-fetch)
              (uri (string-append "mirror://gnu/readline/readline-"
                                  version ".tar.gz"))
              (patches (search-patches "readline-6.2-CVE-2014-2524.patch"))
              (patch-flags '("-p0"))
              (sha256
               (base32
                "10ckm2bd2rkxhvdmj7nmbsylmihw0abwcsnxf8y27305183rd9kr"))))))

(define-public rlwrap
  (package
    (name "rlwrap")
    (version "0.46.1")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/hanslub42/rlwrap")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0shck0hb3jssk5l2pfylxgwrhlkwydj2ld6j7qk2ns2zviymg8n8"))))
    (build-system gnu-build-system)
    (native-inputs
     (list autoconf automake perl))
    (inputs
     (list readline))
    (synopsis "Wrapper to allow the editing of keyboard commands")
    (description
     "Rlwrap is a 'readline wrapper', a small utility that uses the GNU
readline library to allow the editing of keyboard input for any command.  You
should consider rlwrap especially when you need user-defined completion (by way
of completion word lists) and persistent history, or if you want to program
`special effects' using the filter mechanism.")
    (home-page "https://github.com/hanslub42/rlwrap")
    (license gpl2+)))
- }
-
-@@ -294,7 +284,7 @@ void M_vocoder::generateCycle() {
- }
-
- // window the input buffer to modinforward
-- for (l2 = 0; l2 < (unsigned int)fftsize ; l2++) {
-+ for (l2 = 0; l2 < fftsize ; l2++) {
- modinforward[l2] = modbuf[l1][l2] * window[l2];
- }
-
-@@ -310,17 +300,18 @@ void M_vocoder::generateCycle() {
- fftw_execute (planmodforward);
-
- // copy the FFT of the modulator to modinbackward.
-- for (l2 = 0; l2 < (unsigned int)fftsize; l2++)
-- modinbackward[l2] = modoutforward[l2];
-+ //for (l2 = 0; l2 < fftsize; l2++)
-+ // modinbackward[l2] = modoutforward[l2];
-+ modinbackward = modoutforward;
-
- // Send the FFT of the modulator to the output for giggles
- // and get an approximation of the first harmonic too.
- float firstharmonicval;
- int firstharmonicindex;
- firstharmonicval = 0.0;
-- firstharmonicindex = 1.0;
-+ firstharmonicindex = 1;
- for (l2 = 1; l2 < (unsigned int) synthdata->cyclesize; l2++) {
-- data[2][l1][l2] = logf(fabs (creal (modoutforward[l2])) + 1.0);
-+ data[2][l1][l2] = logf(fabs(modoutforward[l2].real()) + 1.0);
- if (data[2][l1][l2] > firstharmonicval) {
- firstharmonicindex = l2;
- firstharmonicval = data[2][l1][l2] ;
-@@ -333,35 +324,38 @@ void M_vocoder::generateCycle() {
-
- // intermediate frequency-domain munging of modulator
- // Frequency (additive, Bode-style) shifting first
-- for (l2 = 0; l2 < (unsigned int)fftsize; l2++)
-- modinbackward[l2] = 0;
-+ for (l2 = 0; l2 < fftsize; l2++)
-+ modinbackward[l2] = 0.0;
-+
- int lclfrq;
-- for (l2 = 0; l2 < (unsigned int)fftsize/2; l2++) {
-+ for (l2 = 0; l2 < fftsize/2; l2++) {
- // positive frequencies (first half) of the FFT result
- lclfrq = l2 + (int)freqshift + vcfreqshift * inFreqShift[l1][0];
- lclfrq = lclfrq > 0 ? lclfrq : 0;
-- lclfrq = lclfrq < ((fftsize/2)-1) ? lclfrq : (fftsize/2)-1;
-+ lclfrq = lclfrq < (int)((fftsize/2)-1) ? lclfrq : (fftsize/2)-1;
- modinbackward [lclfrq] = modoutforward [l2];
- // Negative frequencies (second half of the fft result)
-- modinbackward [fftsize - lclfrq] = modoutforward [ fftsize - l2];
-+ modinbackward [fftsize - lclfrq] = modoutforward [fftsize - l2];
- }
-
-- // Pitchshifting (multiplicative, harmonic-retaining) shifting.
-- // Note that we reuse the modoutforward as working space
-- for (l2 = 0; l2 < (unsigned int) fftsize; l2++) {
-- modoutforward[l2] = modinbackward[l2];
-- };
-- for (l2 = 0; l2 < (unsigned int)fftsize; l2++)
-- modinbackward[l2] = 0;
-+ // Pitchshifting (multiplicative, harmonic-retaining) shifting.
-+ // Note that we reuse the modoutforward as working space
-+ //for (l2 = 0; l2 < fftsize; l2++) {
-+ // modoutforward[l2] = modinbackward[l2];
-+ //};
-+ modoutforward = modinbackward;
-+
-+ for (l2 = 0; l2 < fftsize; l2++)
-+ modinbackward[l2] = 0.0;
-
- float psmod, psfactor;
- psmod = (pitchshift + vcpitch * inPitchShift[l1][0]);
- psfactor = pow (2.0, psmod);
-- for (l2 = 0; l2 < (unsigned int)fftsize/2; l2++) {
-+ for (l2 = 0; l2 < fftsize/2; l2++) {
- // positive frequencies (first half) of the FFT result
- lclfrq = l2 * psfactor;
- lclfrq = lclfrq > 0 ? lclfrq : 0;
-- lclfrq = lclfrq < ((fftsize/2)-1) ? lclfrq : (fftsize/2)-1;
-+ lclfrq = lclfrq < (int)((fftsize/2)-1) ? lclfrq : (fftsize/2)-1;
- // Old way to pitch shift: just move the bucket. But this puts
- // nulls wherever the energy is split between two buckets with
- // a 180 degree phase difference.
-@@ -375,12 +369,12 @@ void M_vocoder::generateCycle() {
- // Better way: move freq. bin, multiply angle by octave motion.
- //
- modinbackward[lclfrq] +=
-- cabs (modoutforward [l2])
-- * cexp (I * ( carg (modoutforward [l2])
-+ std::abs(modoutforward[l2])
-+ * std::exp (I * ( std::arg (modoutforward [l2])
- + (l2 * phaseshift * psfactor)));
- modinbackward[fftsize - lclfrq] +=
-- cabs (modoutforward [ fftsize - l2])
-- * cexp (I * ( carg (modoutforward [ fftsize - l2])
-+ std::abs (modoutforward [ fftsize - l2])
-+ * std::exp (I * ( std::arg (modoutforward [ fftsize - l2])
- + (l2 * phaseshift * psfactor)));
- };
- }
-@@ -389,9 +383,9 @@ void M_vocoder::generateCycle() {
- fftw_execute (planmodbackward);
-
- // renormalize the time-domain modulator output
-- for (l2 = 0; l2 < (unsigned)fftsize; l2++) {
-- modoutbackward [l2] = modoutbackward[l2] / float (fftsize) ;
-- modoutbackward [l2] = modoutbackward[l2] / window[l2];
-+ for (l2 = 0; l2 < fftsize; l2++) {
-+ modoutbackward [l2] = modoutbackward[l2] / (double) fftsize;
-+ modoutbackward [l2] = modoutbackward[l2] / (double) window[l2];
- }
-
- unsigned int i;
-@@ -400,13 +394,11 @@ void M_vocoder::generateCycle() {
-
-
- // Splicing the new output to the results
-- if (dynsplice == 0.0)
-- {
-+ if (dynsplice == 0.0) {
- // output it as the altered modulator.
- for (l2 = 0; l2 < synthdata->cyclesize; l2++) {
-- data[0][l1][l2] = creal ( modoutbackward [l2 +
-- fftsize/2 -
-- synthdata->cyclesize/2 ]);
-+ data[0][l1][l2] =
-+ modoutbackward[l2 + fftsize/2 - synthdata->cyclesize/2].real();
- }
- clomatch_index = fftsize - synthdata->cyclesize;
- }
-@@ -421,18 +413,21 @@ void M_vocoder::generateCycle() {
- float tval, dtval;
- int searchstart;
- float spliceval, dspliceval;
-- searchstart = fftsize/2 - synthdata->cyclesize;
-- if (searchstart < 1) searchstart = 1;
-- clomatch_index = searchstart;
-+
-+ searchstart = fftsize/2 - synthdata->cyclesize;
-+ if (searchstart < 1)
-+ searchstart = 1;
-+
-+ clomatch_index = searchstart;
- spliceval = data[0][l1][synthdata->cyclesize - 1];
- dspliceval = spliceval - data[0][l1][synthdata->cyclesize - 2];
-- clov_sofar= fabs(creal(modoutbackward[clomatch_index])-spliceval );
-+ clov_sofar= fabs(modoutbackward[clomatch_index].real()-spliceval);
- for (l2 = searchstart;
- l2 < (searchstart + synthdata->cyclesize);
- l2++)
- {
-- tval = creal (modoutbackward[l2]);
-- dtval = tval - creal (modoutbackward [l2-1]);
-+ tval = modoutbackward[l2].real();
-+ dtval = tval - modoutbackward [l2-1].real();
- if (
- ((fabs (tval - spliceval )) < clov_sofar )
- && ((dtval * dspliceval ) >= 0)
-@@ -445,15 +440,15 @@ void M_vocoder::generateCycle() {
- };
- // fprintf (stderr, "%d %f %f ",
- // clomatch_index, clov_sofar, clodv_sofar);
--
-+
- // What's our residual error, so that we can splice this
- // with minimal "click"?
-- residual = + spliceval - creal( modoutbackward[clomatch_index]);
-+ residual = + spliceval - modoutbackward[clomatch_index].real();
-
- // Move our wave, with the best match so far established, to
- // the output buffer area.
- for (l2 = 0; l2 < synthdata->cyclesize; l2++) {
-- data[0][l1][l2] = creal ( modoutbackward [ clomatch_index + l2])
-+ data[0][l1][l2] = modoutbackward[clomatch_index + l2].real()
- + ((1.0 - (float(l2) / float(synthdata->cyclesize))) * residual);
- };
-
-@@ -466,17 +461,18 @@ void M_vocoder::generateCycle() {
- for (l2 = 0; l2 < fftsize - synthdata->cyclesize; l2++) {
- carrbuf [l1][l2] = carrbuf [l1][l2 + synthdata->cyclesize];
- }
-+
- for (l2 = 0; l2 < synthdata->cyclesize; l2++) {
- carrbuf [l1][l2 + fftsize - synthdata->cyclesize] = inCarrier[l1][l2];
- }
-
-- for (l2 = 0; l2 < unsigned (fftsize); l2++) {
-+ for (l2 = 0; l2 < fftsize; l2++) {
- carrinforward [l2] = carrbuf [l1][l2] * window[l2];
- }
-
- fftw_execute (plancarrforward);
-
-- for (l2 = 0; l2 < (unsigned) fftsize; l2++) {
-+ for (l2 = 0; l2 < fftsize; l2++) {
- carrinbackward[l2] = carroutforward[l2];
- };
-
-@@ -486,34 +482,37 @@ void M_vocoder::generateCycle() {
- // Group the modulator into channels, and multipy the channels
- // over the carrier.
-
-- int localchannels;
-- localchannels = channels + vcchannels * inChannels[l1][0];
-- if (localchannels < 1) localchannels = 1;
-- if (localchannels > fftsize - 1) localchannels = fftsize - 1;
-- for (l2 = 0; l2 < (unsigned) fftsize; l2++) {
-+ unsigned int localchannels = channels + vcchannels * inChannels[l1][0];
-+ if (localchannels < 1)
-+ localchannels = 1;
-+
-+ if (localchannels > fftsize - 1)
-+ localchannels = fftsize - 1;
-+
-+ for (l2 = 0; l2 < fftsize; l2++) {
- modmap[l2] = 0;
- // initial conditions...
- if (l2 == 0)
- for (i = 0; i < channels; i++)
-- modmap[l2] += cabs (modoutforward[l2 + i]);
-+ modmap[l2] += std::abs(modoutforward[l2 + i]);
- else
- modmap [l2] = modmap[l2 - 1];
-
- // add the heads, subtract the tails
- i = l2 + channels;
-- if (l2 < (unsigned)fftsize - 2)
-- modmap[l2] += cabs( modoutforward [i] );
-+ if (l2 < fftsize - 2)
-+ modmap[l2] += std::abs(modoutforward[i]);
- i = l2 - channels;
- if (l2 >= channels)
-- modmap[l2] -= cabs( modoutforward [i] );
-+ modmap[l2] -= std::abs(modoutforward[i]);
- }
-
- // Normalize the modmap
-- for (l2 = 0; l2 < (unsigned) fftsize; l2++)
-+ for (l2 = 0; l2 < fftsize; l2++)
- modmap[l2] = modmap[l2] / localchannels;
-
- // Do attack/release
-- for (l2 = 0; l2 < (unsigned) fftsize; l2++) {
-+ for (l2 = 0; l2 < fftsize; l2++) {
- if (modmap [l2] > armodmap[l2])
- armodmap [l2] += (1 - attack) * (modmap[l2] - armodmap[l2]);
- if (modmap [l2] < armodmap[l2])
-@@ -521,8 +520,8 @@ void M_vocoder::generateCycle() {
- }
-
- // multiply the carrier by the modulation map.
-- for (l2 = 0; l2 < (unsigned) fftsize; l2++) {
-- carrinbackward[l2] = carroutforward[l2] * armodmap[l2];
-+ for (l2 = 0; l2 < fftsize; l2++) {
-+ carrinbackward[l2] = carroutforward[l2] * (double) armodmap[l2];
- }
-
- // reverse transform to final output, and renormalize by 1/fftsize.
-@@ -532,8 +531,7 @@ void M_vocoder::generateCycle() {
- for (l2 = 0; l2 < synthdata->cyclesize; l2++) {
- offset = l2 + (fftsize/2) - (synthdata->cyclesize / 2);
- data[1][l1][l2]=
-- (creal(carroutbackward[offset]/window[offset])) / (fftsize * 100);
-+ (carroutbackward[offset].real()/window[offset]) / (fftsize * 100);
- };
- };
- }
--
-diff --git a/src/m_vocoder.h b/src/m_vocoder.h
-index 38eac58..32c8521 100644
---- a/src/m_vocoder.h
-+++ b/src/m_vocoder.h
-@@ -1,4 +1,4 @@
--/*
-+/*
- Vocoder - derived from m_delay.cpp
-
- Copyright (C) 2011 Bill Yerazunis <yerazunis@yahoo.com>
-@@ -22,7 +22,9 @@
- #define M_VOCODER_H
-
- #include "module.h"
--#include <complex.h>
-+
-+#include <vector>
-+#include <ccomplex>
- #include <fftw3.h>
-
- #define MODULE_VOCODER_WIDTH 105
-@@ -30,7 +32,7 @@
-
- class M_vocoder : public Module
- {
-- Q_OBJECT
-+ Q_OBJECT
-
- float channels, vcchannels;
- float attack, release;
-@@ -42,21 +44,20 @@ class M_vocoder : public Module
-
- Port *port_M_modulator, *port_M_pitchshift, *port_M_freqshift,
- *port_M_channels, *port_M_carrier;
-+
- Port *port_modfft_out, *port_firstharmonic_out,
-- *port_altmodulator_out,
-- *port_vocoder_out;
-+ *port_altmodulator_out, *port_vocoder_out;
-
-- fftw_plan planmodforward, planmodbackward,
-+ fftw_plan planmodforward, planmodbackward,
- plancarrforward, plancarrbackward;
-
-- fftw_complex *carrinforward, *carroutforward,
-- *carrinbackward, *carroutbackward,
-- *modinforward, *modoutforward,
-- *modinbackward, *modoutbackward;
-+ std::vector<std::complex<double>> carrinforward, carroutforward,
-+ carrinbackward, carroutbackward,
-+ modinforward, modoutforward,
-+ modinbackward, modoutbackward;
-
-- public:
-- int fftsize;
-- float **inModulator, **inPitchShift, **inFreqShift,
-+ unsigned int fftsize;
-+ float **inModulator, **inPitchShift, **inFreqShift,
- **inChannels, **inCarrier;
- // the previous time-based samples, for overlapping
- float **modbuf, **carrbuf;
-@@ -68,10 +69,10 @@ class M_vocoder : public Module
- float *armodmap;
-
- public:
-- float windowcurve (int windowfunc, int len, int elem, float alpha );
-+ float windowcurve (int windowfunc, unsigned int len, int elem, float alpha );
- M_vocoder(QWidget* parent=0, int id = 0);
- ~M_vocoder();
- void generateCycle();
- };
--
-+
- #endif