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aseqdump: Refactor UMP SysEx dump

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A slightly better version.  The extraction of a SysEx byte from a UMP
packet is more complicated than wished, in anyway.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2024-06-27 13:24:11 +02:00
parent 506097ebb1
commit be6356d847
1 changed files with 10 additions and 13 deletions
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23
seq/aseqdump/aseqdump.c
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@ -668,9 +668,16 @@ static void dump_ump_system_event(const unsigned int *ump)
} }
} }
static unsigned char ump_sysex7_data(const unsigned int *ump,
unsigned int offset)
{
offset += 2;
return (ump[offset / 4] >> ((3 - (offset & 3)) * 8)) & 0xff;
}
static void dump_ump_sysex_event(const unsigned int *ump) static void dump_ump_sysex_event(const unsigned int *ump)
{ {
int i, offset, length; int i, length;
printf("Group %2d, ", group_number(snd_ump_msg_group(ump))); printf("Group %2d, ", group_number(snd_ump_msg_group(ump)));
switch (snd_ump_sysex_msg_status(ump)) { switch (snd_ump_sysex_msg_status(ump)) {
@ -693,18 +700,8 @@ static void dump_ump_sysex_event(const unsigned int *ump)
length = snd_ump_sysex_msg_length(ump); length = snd_ump_sysex_msg_length(ump);
printf(" length %d ", length); printf(" length %d ", length);
offset = 24; for (i = 0; i < length; i++)
for (i = 0; i < length; i++) { printf("%s%02x", i ? ":" : "", ump_sysex7_data(ump, i));
if (i)
printf(":");
printf("%02x", (*ump >> (32 - offset)) & 0x7f);
if (offset < 32) {
offset += 8;
} else {
ump++;
offset = 8;
}
}
printf("\n"); printf("\n");
} }