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MCP: patch from seablade to fix pot displays (both absolute value and negative values)

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git-svn-id: svn://localhost/ardour2/branches/3.0@12739 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis 2012-06-16 03:10:26 +00:00
parent 5b1da330a4
commit 9429401f11
1 changed files with 10 additions and 1 deletions
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11
libs/surfaces/mackie/pot.cc
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@ -47,11 +47,20 @@ Pot::set (float val, bool onoff, Mode mode)
// Pot/LED mode
msg |= (mode << 4);
/*
* Even though a width value may be negative, there is
* technically still width there, it is just reversed,
* so make sure to show it on the LED ring appropriately.
*/
if (val < 0){
val = val * -1;
}
// val, but only if off hasn't explicitly been set
if (onoff) {
if (mode == spread) {
msg |= (lrintf (val * 6) + 1) & 0x0f; // 0b00001111
msg |= (lrintf (val * 6)) & 0x0f; // 0b00001111
} else {
msg |= (lrintf (val * 10.0) + 1) & 0x0f; // 0b00001111
}