Hi there!

I'm interested on doing an lv2 plugin version for cursynth.
I already started some work, but I have no idea how to setup autoconf for this.

I have a folder named "lv2" with a "lv2.cpp" file inside (plus the needed lv2 headers for easy building).

If anyone can make the needed autoconf changes, I'll do a pull request for my current code.
(No UI or state save yet, I first need to know the current code works).

thanks!

Would you like to add the configuration script "AX_PTHREAD" to your build specification?

MAKEINFO cursynth.info
./fdl.texi:407: raising the section level of @appendixsubsec which is too low

I'm not sure what this error is.

Got this email, need to look into fixing it!

"""
I tried to configure cursynth with the --with-pulse option, and encountered some problems. Firstly, the rtmidi subpackage does not support pulseaudio, so an alsa (or other) library also needs to be available. Also, the libraries dependencies are not passed back to the cursynth configuration, so that when linking the cursynth binary the libraries needed by rtmidi are not included. This can be overcome by, e.g. using LDFLAGS="-lasound" together with --with-pulse when configuring.

After successfully building with the workarounds mentioned above, however, the cursynth executable exits with the following error:

RtApiPulse::probeDeviceOpen: unsupported sample format.

Examining the cursynth source, I see in cursynth.cpp on line 309, that it's trying to open an rtaudio stream with the RTAUDIO_FLOAT64 sample format, which is unfortunately not supported from the rtaudio pulseaudio interface. I tried changing the FLOAT64 to FLOAT32, but ran into an assertion error in pulseaudio it seems.
"""

Right now you need at least a 120 character wide terminal to run Cursynth.
There should be a more dynamic UI that allows for smaller terminal sizes.

If your terminal is resized, Cursynth should redraw the GUI to fit it better.

Linux version: 3.11.10-301.fc20.x86_64, gcc 4.8.2
Distro: Fedora 20 XFCE Spin

Issue (when running):
RtApiAlsa::getDeviceInfo: snd_pcm_open error for device (hw:0,0), Device or resource busy.

RtApiAlsa::getDeviceInfo: snd_pcm_open error for device (hw:0,0), Device or resource busy.

RtApiAlsa::probeDeviceOpen: pcm device (hw:0,0) won't open for output.

Anyone encountered similar problem?
Also: latest releases on ftp://ftp.gnu.org/gnu/cursynth
don't include cstdlib fix for rand() problem

Would you like to add more error handling for return values from functions like the following?

• pthread_cond_wait ⇒ RtApiCore::stopStream
• pthread_mutex_init ⇒ Cursynth constructor

Hi,

cursynth failed to make on my system with the error:

In file included from mono_panner.cpp:20:0:
wave.h: In static member function 'static mopo::mopo_float mopo::Wave::whitenoise()':
wave.h:245:28: error: 'rand' was not declared in this scope
return (2.0 * rand()) / RAND_MAX - 1;
^
wave.h:245:33: error: 'RAND_MAX' was not declared in this scope
return (2.0 * rand()) / RAND_MAX - 1;

Adding the header <stdlib.h> to mopo/src/wave.h fixed this

When I execute 'make', output this log.

In file included from mono_panner.cpp:20:
./wave.h:258:16: warning: absolute value function 'fabsf' given an argument of type 'double' but has parameter of type 'float' which may cause truncation of value
      [-Wabsolute-value]
        return fabsf(2.0f - 4.0f * modf(t + 0.75f, &integral)) - 1;
               ^
./wave.h:258:16: note: use function 'std::abs' instead
        return fabsf(2.0f - 4.0f * modf(t + 0.75f, &integral)) - 1;
               ^~~~~
               std::abs

I was trying to compile this (awesome) repo, but I ran into this error :

In file included from mono_panner.cpp:20:0:
wave.h: In static member function ‘static mopo::mopo_float mopo::Wave::whitenoise()’:
wave.h:245:28: error: ‘rand’ was not declared in this scope
         return (2.0 * rand()) / RAND_MAX - 1;
                            ^
wave.h:245:33: error: ‘RAND_MAX’ was not declared in this scope
         return (2.0 * rand()) / RAND_MAX - 1;
                                 ^

Tried building cursynth on Windows using MinGW and msys. It builds successfully, but it needed the following patches to do so. While either ncurses of pdcurses is available on both Linux, BSD and Windows platforms, Windows builds typically use pdcurses. I replaced the link to the ncurses library in src/Makefile with -lpdcurses and the patches switch from the ncurses header to the pdcurses header file on Windows. Might be nicer to give the user the option to pick ncurses or pdcurses instead of defaulting by platform. Also, on most systems mkdir takes to arguments, but on Windows, it just takes one. Windows streams are typically text instead of binary based unless specified as binary.

diff -Naurp src/cursynth-1.4/rtaudio/RtAudio.cpp tmp/cursynth-1.4/rtaudio/RtAudio.cpp
--- src/cursynth-1.4/rtaudio/RtAudio.cpp 2014-01-21 21:31:39 -0500
+++ tmp/cursynth-1.4/rtaudio/RtAudio.cpp
@@ -3558,6 +3558,7 @@ static const char* getAsioErrorString( A
#pragma comment( lib, "winmm.lib" ) // then, auto-link winmm.lib. Otherwise, it has to be added manually.
#endif

+#include <stdio.h>
static inline DWORD dsPointerBetween( DWORD pointer, DWORD laterPointer, DWORD earlierPointer, DWORD bufferSize )
{
if ( pointer > bufferSize ) pointer -= bufferSize;
@@ -7130,6 +7131,9 @@ bool RtApiOss :: probeDeviceOpen( unsign

// Try to open the device.
int fd;
+#ifdef _WIN32

• flags |-= O_BINARY;
  +#endif
  fd = open( ainfo.devnode, flags, 0 );
  if ( fd == -1 ) {
  if ( errno == EBUSY )
  diff -Naurp src/cursynth-1.4/src/cursynth.cpp tmp/cursynth-1.4/src/cursynth.cpp
  --- src/cursynth-1.4/src/cursynth.cpp 2014-02-04 20:43:48 -0500
  +++ tmp/cursynth-1.4/src/cursynth.cpp
  @@ -22,7 +22,11 @@

include <dirent.h>

include

include

+#ifdef _WIN32
+#include <curses.h>
+#else

include <ncurses.h>

+#endif

include

include

include <stdio.h>

@@ -56,8 +60,10 @@ namespace {
RtAudioStreamStatus status, void *user_data) {
UNUSED(in_buffer);
UNUSED(stream_time);
+#ifndef _WIN32
if (status)
std::cout << "Stream underflow detected!" << std::endl;
+#endif

mopo::Cursynth* cursynth = static_castmopo::Cursynth*(user_data);
cursynth->processAudio((mopo::mopo_float*)out_buffer, n_frames);
@@ -88,7 +94,11 @@ namespace {
// Check if the directory path exists, if not, create it.
void confirmPathExists(std::string path) {
if (opendir(path.c_str()) == NULL)
+#ifdef _WIN32

•  mkdir(path.c_str());
  

  +#else
  mkdir(path.c_str(), 0755);
  +#endif
  }

  // Returns all files in directory dir with extenstion ext.
  diff -Naurp src/cursynth-1.4/src/cursynth_gui.cpp tmp/cursynth-1.4/src/cursynth_gui.cpp
  --- src/cursynth-1.4/src/cursynth_gui.cpp 2014-03-15 18:26:00 -0400
  +++ tmp/cursynth-1.4/src/cursynth_gui.cpp
  @@ -21,7 +21,11 @@

  include <libintl.h>

  include <locale.h>

  include <math.h>

  +#ifdef _WIN32
  +#include <curses.h>
  +#else

  include <ncurses.h>

  +#endif

  include <stdlib.h>

  include

  include <unistd.h>

  diff -Naurp src/cursynth-1.4/src/cursynth_gui.h tmp/cursynth-1.4/src/cursynth_gui.h
  --- src/cursynth-1.4/src/cursynth_gui.h 2014-02-04 20:43:48 -0500
  +++ tmp/cursynth-1.4/src/cursynth_gui.h
  @@ -22,7 +22,11 @@

  include "cursynth_common.h"

  include

  +#ifdef _WIN32
  +#include <curses.h>
  +#else

  include <ncurses.h>

  +#endif

  include

  namespace mopo {

I receive this error message:

$ ./configure
./configure: line 2282: syntax error near unexpected token `-Wall'
./configure: line 2282: `AM_INIT_AUTOMAKE(-Wall -Werror foreign)'

My computer:

$ uname -a
Darwin adius.local 13.1.0 Darwin Kernel Version 13.1.0: Thu Jan 16 19:40:37 PST 2014; root:xnu-2422.90.20~2/RELEASE_X86_64 x86_64

I have built this program successfully but every time I run it, it always quits suddenly. Without any outputs either, I could not know any causes of the errors.

• Here is an error that occures after 'make install' command:
  "...
  cursynth_gui.h:25:10: fatal error: ncurses.h: Aucun fichier ou dossier de ce type
  25 | #include <ncurses.h>
  | ^~~~~~~~~~~
  compilation terminated.
  ..."
• And i don't found it among the files I got from Github ... Have you missed it, or do we have to get it somewherelse ?
• Thanks !

I run cursynth, but get an error message :

RtApiAlsa::probeDeviceOpen: pcm device (hw:0,0) won't open for output.

.. And don't see what it means ...
Have an idea ?

I cloned the github source, and followed these directions:

$ autoreconf -i
$ ./configure
$ make

here is the log:

make  all-recursive
make[1]: Entering directory '/home/zane/packages/cursynth'
Making all in cJSON
make[2]: Entering directory '/home/zane/packages/cursynth/cJSON'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/home/zane/packages/cursynth/cJSON'
Making all in rtaudio
make[2]: Entering directory '/home/zane/packages/cursynth/rtaudio'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/home/zane/packages/cursynth/rtaudio'
Making all in rtmidi
make[2]: Entering directory '/home/zane/packages/cursynth/rtmidi'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/home/zane/packages/cursynth/rtmidi'
Making all in mopo
make[2]: Entering directory '/home/zane/packages/cursynth/mopo'
Making all in src
make[3]: Entering directory '/home/zane/packages/cursynth/mopo/src'
  CXX      mono_panner.o
In file included from mono_panner.cpp:20:0:
wave.h: In static member function ‘static mopo::mopo_float mopo::Wave::whitenoise()’:
wave.h:245:28: error: ‘rand’ was not declared in this scope
         return (2.0 * rand()) / RAND_MAX - 1;
                            ^
wave.h:245:33: error: ‘RAND_MAX’ was not declared in this scope
         return (2.0 * rand()) / RAND_MAX - 1;
                                 ^
Makefile:382: recipe for target 'mono_panner.o' failed
make[3]: *** [mono_panner.o] Error 1
make[3]: Leaving directory '/home/zane/packages/cursynth/mopo/src'
Makefile:330: recipe for target 'all-recursive' failed
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory '/home/zane/packages/cursynth/mopo'
Makefile:446: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/home/zane/packages/cursynth'
Makefile:365: recipe for target 'all' failed
make: *** [all] Error 2

uname -srvmo:
Linux 3.14.5-1-ARCH #1 SMP PREEMPT Sun Jun 1 07:36:23 CEST 2014 x86_64 GNU/Linux

Seems like there's a samplerate problem here, among other things. Needs some lookings intos.

is this dead?
i will paches for it if it come back

Hey,

I got this issue when I did "./configure" after doing a autoreconf -i from the github source :

"checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
[...a very long list...]
checking for unistd.h... (cached) yes
checking for audio API... ./configure: line 7701: syntax error near unexpected token PULSE,' ./configure: line 7701: PKG_CHECK_MODULES(PULSE, libpulse-simple, , as_fn_error $? "PulseAudio support requires the pulse-simple library!" "$LINENO" 5)' "

I just wanna let you know, and even have solution from you !

Waiting for your answer guys :)

Elie.