Roger Dannenberg wrote:
Sebastien,
Cpr is right -- it should not be an error to initialize PortMidi
even if there are no devices available. But did you get the console error
message after initialization or when you try to open a device? You may be
right that there's a problem.
I'm definitely behind on putting out a new release with some mostly
minor fixes, but on the other hand, a lot of people seem to be using
PortMidi without complaints, so low activity levels is seen as a virtue. I
certainly want to track down and fix bugs as they are discovered, so let me
know.
-Roger
Hi.
Thanks for your quick answers. At least, now, I know for sure that there
is support for the PortMidi library :-)
I understand your answer and I realize now that I should have tested
further my program. About your question, the error message come when I'm
initialize : I call Pm_Initialize() and Alsa directly ouput its message.
I checked and Pm_CountDevices() returns 0 as it should. Great.
Now, another problem. If I initialize PortMidi when I have no MIDI
device, I get the Alsa message and I can bear with it. Another problem
arises when I call Pm_Terminate (as I should because it IS initialized)
: Alsa complains again and EXIT my program. Here is the output I have :
- ALSA lib seq_hw.c:446:(snd_seq_hw_open) open /dev/snd/seq failed: No
such file or directory
This one come from the initialization.
- AlterMidiIO::MidiIO::initialize() - No MIDI device has been found
This is a message I output just before calling Pm_Terminate.
- Salto_DBG: seq.c:1014: snd_seq_close: Assertion `seq' failed.
Again a message from Alsa ("Salto_DBG" is the name of my executable
- Aborted
Again from Alsa.
It is obviously not a clean way of exiting my program as I cannot
prevent it and none of my destructors are called.
I tried with a simple program which only does the following :
Pm_Initialize(), Pm_CountDevices() and Pm_Terminate() if no device has
been found. The problem arises. So I'm sure the problem doesn't come
from my program.
By the way, I compile by adding the -lportmidi -lporttime -lasound flags
(I am obliged to add -lasound to avoid unresolved externals).
Thanks for your help.
Sebastien
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