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envy24control: midi support for mixer

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Hello devlopers,

I have made the mixer sliders in envy24control react to MIDI
controllers. This way the hardware mixer can be controlled from a
sequencer program or some external MIDI controller hardware.

envy24control became a standard ALSA sequencer client which you can
connect to arbitrary other MIDI sources/sinks.

Signed-off-by: Dirk Jagdmann <doj@cubic.org>
This commit is contained in:
Dirk Jagdmann 2004-11-17 11:41:56 +00:00 • committed by Takashi Iwai
parent 465acb88f4
commit 1be230856c
6 changed files with 269 additions and 41 deletions
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44
envy24control/envy24control.c
View file

@ -21,6 +21,7 @@
******************************************************************************/
#include "envy24control.h"
#include "midi.h"
#define _GNU_SOURCE
#include <getopt.h>
@ -1926,7 +1927,7 @@ static void create_profiles(GtkWidget *main, GtkWidget *notebook, int page)
static void usage(void)
{
fprintf(stderr, "usage: envy24control [-c card#] [-D control-name] [-o num-outputs] [-i num-inputs] [-p num-pcm-outputs] [-s num-spdif-in/outs] [-v] [-f profiles-file] [profile name|profile id]\n");
fprintf(stderr, "usage: envy24control [-c card#] [-D control-name] [-o num-outputs] [-i num-inputs] [-p num-pcm-outputs] [-s num-spdif-in/outs] [-v] [-f profiles-file] [profile name|profile id] [-m channel-num]\n");
fprintf(stderr, "\t-c, --card\tAlsa card number to control\n");
fprintf(stderr, "\t-D, --device\tcontrol-name\n");
fprintf(stderr, "\t-o, --outputs\tLimit number of analog line outputs to display\n");
@ -1935,6 +1936,7 @@ static void usage(void)
fprintf(stderr, "\t-s, --spdif\tLimit number of spdif inputs/outputs to display\n");
fprintf(stderr, "\t-v, --view_spdif_playback\tshows the spdif playback channels in the mixer\n");
fprintf(stderr, "\t-f, --profiles_file\tuse file as profiles file\n");
fprintf(stderr, "\t-m, --midichannel\tmidi channel number for controller control\n");
}
int main(int argc, char **argv)
@ -1946,17 +1948,19 @@ int main(int argc, char **argv)
snd_ctl_elem_value_t *val;
int npfds;
struct pollfd *pfds;
int midi_fd, midi_channel = -1;
int page;
int input_channels_set = 0;
int output_channels_set = 0;
static struct option long_options[] = {
{"device", 1, 0, 'D'},
{"card", 1, 0, 'c'},
{"profiles_file", 1, 0, 'f'},
{"inputs", 1, 0, 'i'},
{"midichannel", 1, 0, 'm'},
{"outputs", 1, 0, 'o'},
{"pcm_outputs", 1, 0, 'p'},
{"spdif", 1, 0, 's'},
{"profiles_file", 1, 0, 'f'},
{"view_spdif_playback", 0, 0, 'v'},
{ NULL }
};
@ -1977,8 +1981,16 @@ int main(int argc, char **argv)
view_spdif_playback = 0;
profiles_file_name = DEFAULT_PROFILERC;
default_profile = NULL;
while ((c = getopt_long(argc, argv, "D:c:i:o:p:s:f:v", long_options, NULL)) != -1) {
while ((c = getopt_long(argc, argv, "D:c:f:i:m:o:p:s:v", long_options, NULL)) != -1) {
switch (c) {
case 'D':
name = optarg;
card_number = atoi(strchr(name, ':') + sizeof(char));
if (card_number < 0 || card_number >= MAX_CARD_NUMBERS) {
fprintf(stderr, "envy24control: invalid card number %d\n", card_number);
exit(1);
}
break;
case 'c':
i = atoi(optarg);
if (i < 0 || i >= MAX_CARD_NUMBERS) {
@ -1989,13 +2001,8 @@ int main(int argc, char **argv)
sprintf(tmpname, "hw:%d", i);
name = tmpname;
break;
case 'D':
name = optarg;
card_number = atoi(strchr(name, ':') + sizeof(char));
if (card_number < 0 || card_number >= MAX_CARD_NUMBERS) {
fprintf(stderr, "envy24control: invalid card number %d\n", card_number);
exit(1);
}
case 'f':
profiles_file_name = optarg;
break;
case 'i':
input_channels = atoi(optarg);
@ -2005,6 +2012,14 @@ int main(int argc, char **argv)
}
input_channels_set = 1;
break;
case 'm':
midi_channel = atoi(optarg);
if (midi_channel < 1 || midi_channel > 16) {
fprintf(stderr, "envy24control: invalid midi channel number %i\n", midi_channel);
exit(1);
}
--midi_channel;
break;
case 'o':
output_channels = atoi(optarg);
if (output_channels < 0 || output_channels > MAX_OUTPUT_CHANNELS) {
@ -2027,9 +2042,6 @@ int main(int argc, char **argv)
exit(1);
}
break;
case 'f':
profiles_file_name = optarg;
break;
case 'v':
view_spdif_playback = 1;
break;
@ -2083,6 +2095,8 @@ int main(int argc, char **argv)
patchbay_init();
hardware_init();
analog_volume_init();
if (midi_channel >= 0)
midi_fd = midi_init(argv[0], midi_channel);
fprintf(stderr, "using\t --- input_channels: %i\n\t --- output_channels: %i\n\t --- pcm_output_channels: %i\n\t --- spdif in/out channels: %i\n", \
input_channels, output_channels, pcm_output_channels, spdif_channels);
@ -2123,6 +2137,9 @@ int main(int argc, char **argv)
ctl);
snd_ctl_subscribe_events(ctl, 1);
}
if (midi_fd >= 0) {
gdk_input_add(midi_fd, GDK_INPUT_READ, midi_process, NULL);
}
gtk_timeout_add(40, level_meters_timeout_callback, NULL);
gtk_timeout_add(100, master_clock_status_timeout_callback, NULL);
gtk_timeout_add(100, internal_clock_status_timeout_callback, NULL);
@ -2141,6 +2158,7 @@ int main(int argc, char **argv)
gtk_main();
snd_ctl_close(ctl);
midi_close();
return EXIT_SUCCESS;
}