diff options
| author | Thomas White <taw@physics.org> | 2019-06-11 22:48:31 +0200 |
|---|---|---|
| committer | Thomas White <taw@physics.org> | 2019-06-11 23:21:03 +0200 |
| commit | 8b48cbe1bf7dfd5cd7a1400357e9586c29b57aac (patch) | |
| tree | 68088bbfe5bbd3448d4e6d2aae93e5acec512b2f | |
| parent | 6ef035a2ad6ac9e3d9f5c2950a7ac2664919bd0b (diff) | |
Fix DMX addresses
| -rw-r--r-- | src/scanout.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/scanout.c b/src/scanout.c index 1c5823b..49c6b6b 100644 --- a/src/scanout.c +++ b/src/scanout.c @@ -43,7 +43,8 @@ int scanout_all(struct nanolight *nl) int j; struct fixture *fix = &nl->fixtures[i]; for ( j=0; j<fix->cls->n_attrs; j++ ) { - int pos = fix->base_addr + fix->cls->attrs[j].addr_offset; + /* Minus one to convert DMX address to indexing in 'dmx' array */ + int pos = fix->base_addr + fix->cls->attrs[j].addr_offset - 1; if ( fix->cls->attrs[j].props & ATTR_16BIT ) { dmx[pos] = (fix->attr_vals[j] & 0xff00) >> 8; dmx[pos+1] = fix->attr_vals[j] & 0xff; |