Add midi-join plugin

source/native-plugins/midi-join.c

@@ -0,0 +1,144 @@
+/*
+ * Carla Native Plugins
+ * Copyright (C) 2012-2014 Filipe Coelho <falktx@falktx.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * For a full copy of the GNU General Public License see the doc/GPL.txt file.
+ */
+
+#include "CarlaNative.h"
+#include "CarlaMIDI.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+// -----------------------------------------------------------------------
+
+typedef struct {
+    const NativeHostDescriptor* host;
+} MidiSplitHandle;
+
+// -----------------------------------------------------------------------
+
+static NativePluginHandle midijoin_instantiate(const NativeHostDescriptor* host)
+{
+    MidiSplitHandle* const handle = (MidiSplitHandle*)malloc(sizeof(MidiSplitHandle));
+
+    if (handle == NULL)
+        return NULL;
+
+    handle->host = host;
+    return handle;
+}
+
+#define handlePtr ((MidiSplitHandle*)handle)
+
+static void midijoin_cleanup(NativePluginHandle handle)
+{
+    free(handlePtr);
+}
+
+static void midijoin_process(NativePluginHandle handle, float** inBuffer, float** outBuffer, uint32_t frames, const NativeMidiEvent* midiEvents, uint32_t midiEventCount)
+{
+    const NativeHostDescriptor* const host = handlePtr->host;
+    NativeMidiEvent tmpEvent;
+
+    for (uint32_t i=0; i < midiEventCount; ++i)
+    {
+        const NativeMidiEvent* const midiEvent = &midiEvents[i];
+
+        printf("midijoin_process %i\n", midiEvent->port);
+        if (midiEvent->port >= MAX_MIDI_CHANNELS)
+            continue;
+
+        const uint8_t status = (uint8_t)MIDI_GET_STATUS_FROM_DATA(midiEvent->data);
+
+        tmpEvent.port    = 0;
+        tmpEvent.time    = midiEvent->time;
+        tmpEvent.data[0] = status | (midiEvent->port & MIDI_CHANNEL_BIT);
+        tmpEvent.data[1] = midiEvent->data[1];
+        tmpEvent.data[2] = midiEvent->data[2];
+        tmpEvent.data[3] = midiEvent->data[3];
+        tmpEvent.size    = midiEvent->size;
+
+        host->write_midi_event(host->handle, &tmpEvent);
+    }
+
+    return;
+
+    // unused
+    (void)inBuffer;
+    (void)outBuffer;
+    (void)frames;
+}
+
+#undef handlePtr
+
+// -----------------------------------------------------------------------
+
+static const NativePluginDescriptor midijoinDesc = {
+    .category  = NATIVE_PLUGIN_CATEGORY_UTILITY,
+    .hints     = NATIVE_PLUGIN_IS_RTSAFE,
+    .supports  = NATIVE_PLUGIN_SUPPORTS_EVERYTHING,
+    .audioIns  = 0,
+    .audioOuts = 0,
+    .midiIns   = 16,
+    .midiOuts  = 1,
+    .paramIns  = 0,
+    .paramOuts = 0,
+    .name      = "MIDI Join",
+    .label     = "midijoin",
+    .maker     = "falkTX",
+    .copyright = "GNU GPL v2+",
+
+    .instantiate = midijoin_instantiate,
+    .cleanup     = midijoin_cleanup,
+
+    .get_parameter_count = NULL,
+    .get_parameter_info  = NULL,
+    .get_parameter_value = NULL,
+    .get_parameter_text  = NULL,
+
+    .get_midi_program_count = NULL,
+    .get_midi_program_info  = NULL,
+
+    .set_parameter_value = NULL,
+    .set_midi_program    = NULL,
+    .set_custom_data     = NULL,
+
+    .ui_show = NULL,
+    .ui_idle = NULL,
+
+    .ui_set_parameter_value = NULL,
+    .ui_set_midi_program    = NULL,
+    .ui_set_custom_data     = NULL,
+
+    .activate   = NULL,
+    .deactivate = NULL,
+    .process    = midijoin_process,
+
+    .get_state = NULL,
+    .set_state = NULL,
+
+    .dispatcher = NULL
+};
+
+// -----------------------------------------------------------------------
+
+void carla_register_native_plugin_midijoin(void);
+
+void carla_register_native_plugin_midijoin(void)
+{
+    carla_register_native_plugin(&midijoinDesc);
+}
+
+// -----------------------------------------------------------------------