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envy24control: enhanced mapping of midi controller

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From: Dirk Jagdmann <doj@cubic.org>

Hello,

this patch adds a command line option to select a better mapping from
midi controller values to dB sliders. The default stays as a linear
mapping, which has the disadvantage, that a sensible area to adjust your
volume (which ist mostly in the range of 0..-12dB) is in the upper
1/10th of your midi controller. This patch adds a map, which consists of
two linear functions, so that the upper half of your midi controller
controls values from 0..-12dB, the lower half then controls -13..-96dB.
This commit is contained in:
Takashi Iwai 2005-08-03 13:52:13 +00:00
parent 7fcbc9917e
commit 603e129bc5
4 changed files with 153 additions and 15 deletions
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8
envy24control/envy24control.c
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@ -1951,7 +1951,7 @@ int main(int argc, char **argv)
snd_ctl_elem_value_t *val;
int npfds;
struct pollfd *pfds;
int midi_fd = -1, midi_channel = -1;
int midi_fd = -1, midi_channel = -1, midi_enhanced = 0;
int page;
int input_channels_set = 0;
int output_channels_set = 0;
@ -1961,6 +1961,7 @@ int main(int argc, char **argv)
{"profiles_file", 1, 0, 'f'},
{"inputs", 1, 0, 'i'},
{"midichannel", 1, 0, 'm'},
{"midienhanced", 0, 0, 'M'},
{"outputs", 1, 0, 'o'},
{"pcm_outputs", 1, 0, 'p'},
{"spdif", 1, 0, 's'},
@ -1984,7 +1985,7 @@ 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:f:i:m:o:p:s:v", long_options, NULL)) != -1) {
while ((c = getopt_long(argc, argv, "D:c:f:i:m:Mo:p:s:v", long_options, NULL)) != -1) {
switch (c) {
case 'D':
name = optarg;
@ -2023,6 +2024,7 @@ int main(int argc, char **argv)
}
--midi_channel;
break;
case 'M': midi_enhanced = 1; break;
case 'o':
output_channels = atoi(optarg);
if (output_channels < 0 || output_channels > MAX_OUTPUT_CHANNELS) {
@ -2122,7 +2124,7 @@ int main(int argc, char **argv)
hardware_init();
analog_volume_init();
if (midi_channel >= 0)
midi_fd = midi_init(argv[0], midi_channel);
midi_fd = midi_init(argv[0], midi_channel, midi_enhanced);
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);