zynaddsubfx

commit 9dc0e24aee3dc5af48444ab87f5b80774486555b
parent 7adfcfd61871a29bf939c6eedf2fb83a1bc6f14f
Author: Hans Petter Selasky <hps@selasky.org>
Date:   Sat, 28 Sep 2019 10:45:57 +0200

Add support for SysEx to ALSA sequencer backend.

Signed-off-by: Hans Petter Selasky <hps@selasky.org>

Diffstat:
M
src/Nio/AlsaEngine.cpp
 | 
13
+++++++++++++

1 file changed, 13 insertions(+), 0 deletions(-)
diff --git a/src/Nio/AlsaEngine.cpp b/src/Nio/AlsaEngine.cpp
@@ -193,6 +193,19 @@ void *AlsaEngine::MidiThread(void)
                 break;
 
             case SND_SEQ_EVENT_SYSEX:   // system exclusive
+                for (int x = 0; x < event->data.ext.len; x += 3) {
+                    uint8_t buf[3];
+                    int y = event->data.ext.len - x;
+                    if (y >= 3) {
+                        memcpy(buf, (uint8_t *)event->data.ext.ptr + x, 3);
+                    } else {
+                        memset(buf, 0, sizeof(buf));
+                        memcpy(buf, (uint8_t *)event->data.ext.ptr + x, y);
+                    }
+                    midiProcess(buf[0], buf[1], buf[2]);
+                }
+                break;
+
             case SND_SEQ_EVENT_SENSING: // midi device still there
                 break;