Added foundation for at jack client class.

1 files changed, 183 insertions, 0 deletions

diff --git a/src/jackclient.cc b/src/jackclient.cc
new file mode 100644
index 0000000..af25da0
--- /dev/null
+++ b/src/jackclient.cc
@@ -0,0 +1,183 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            jackclient.cc
+ *
+ *  Sun Jul 20 21:48:44 CEST 2008
+ *  Copyright 2008 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo 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
+ *  (at your option) any later version.
+ *
+ *  DrumGizmo 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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with DrumGizmo; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "jackclient.h"
+
+extern "C"
+{
+  void _wrap_jack_shutdown(void *arg){
+    ((JackClient*)arg)->shutdown();}
+  int _wrap_jack_process(jack_nframes_t nframes, void *arg){
+    return ((JackClient*)arg)->process(nframes);}
+  void _wrap_jack_thread_init(void *arg){
+    ((JackClient*)arg)->thread_init();}
+  void _wrap_jack_freewheel_mode(int freewheel_mode, void *arg){
+    ((JackClient*)arg)->freewheel_mode(freewheel_mode);}
+  int _wrap_jack_buffer_size(jack_nframes_t nframes, void *arg){
+    return ((JackClient*)arg)->buffer_size(nframes);}
+  int _wrap_jack_sample_rate(jack_nframes_t nframes, void *arg){
+    return ((JackClient*)arg)->sample_rate(nframes);}
+  void _wrap_jack_port_registration(jack_port_id_t port, int i, void *arg){
+    ((JackClient*)arg)->port_registration(port, i);}
+  int _wrap_jack_graph_order(void *arg){
+    return ((JackClient*)arg)->graph_order();}
+  int _wrap_jack_xrun(void *arg){
+    return ((JackClient*)arg)->xrun();}
+}  // extern "C"
+
+JackClient::JackClient(size_t num_inputs, size_t num_outputs)
+{
+	jack_status_t status;
+
+	jack_client = jack_client_open("DrumGizmo", JackNullOption, &status);
+
+	// Setup input port
+	midi_port = jack_port_register(jack_client,
+                                 "Midi in",
+                                 JACK_DEFAULT_MIDI_TYPE,
+                                 JackPortIsInput,// | JackPortIsTerminal,
+                                 0);
+
+	// Setup input ports
+	for(size_t i = 0; i < num_inputs; i++) {
+		char port_name[32];
+		sprintf(port_name, "Port %i", i);
+		jack_port_t *port = jack_port_register(jack_client,
+                                           port_name,
+                                           JACK_DEFAULT_AUDIO_TYPE,
+                                           JackPortIsInput | JackPortIsTerminal,
+                                           0);
+    input_ports.push_back(port);
+	}
+
+	// Setup output ports
+	for(size_t i = 0; i < num_outputs; i++) {
+		char port_name[32];
+		sprintf(port_name, "Port %i", i);
+		jack_port_t *port = jack_port_register(jack_client,
+                                           port_name,
+                                           JACK_DEFAULT_AUDIO_TYPE,
+                                           JackPortIsOutput | JackPortIsTerminal,
+                                           0);
+    output_ports.push_back(port);
+	}
+
+	jack_on_shutdown(jack_client, _wrap_jack_shutdown, this);
+  jack_set_process_callback(jack_client, _wrap_jack_process, this);
+	jack_set_thread_init_callback(jack_client, _wrap_jack_thread_init, this);
+	jack_set_freewheel_callback(jack_client, _wrap_jack_freewheel_mode, this);
+	jack_set_buffer_size_callback(jack_client, _wrap_jack_buffer_size, this);
+	jack_set_sample_rate_callback(jack_client, _wrap_jack_sample_rate, this);
+	jack_set_port_registration_callback(jack_client, _wrap_jack_port_registration, this);
+	jack_set_graph_order_callback(jack_client, _wrap_jack_graph_order, this);
+	jack_set_xrun_callback(jack_client, _wrap_jack_xrun, this);
+}
+
+JackClient::~JackClient()
+{
+	jack_client_close(jack_client);
+}
+
+void JackClient::activate()
+{
+	jack_activate(jack_client);
+}
+
+void JackClient::shutdown()
+{
+}
+
+int JackClient::process(jack_nframes_t nframes)
+{
+  /*
+	int pos = -1;
+	Params *params = (Params*)arg;
+
+	void *midibuffer = jack_port_get_buffer(params->midi_port, nframes);
+	jack_nframes_t midievents = jack_midi_get_event_count(midibuffer);
+	for(jack_nframes_t i = 0; i < midievents; i++) {
+		jack_midi_event_t event;
+		jack_midi_event_get(&event, midibuffer, i);
+		printf("[ Time: %d  Size: %d  ", event.time, event.size);
+		for(int j = 0; j < event.size; j++) {
+			jack_midi_data_t m = event.buffer[j];
+			printf("  Data: %d ", m);
+		}
+		printf("]\n");
+		for(int i = 0; i < NUM_PORTS; i++) {
+			pos = event.time;
+		}
+	}
+
+	for(int i = 0; i < NUM_PORTS; i++) {
+		jack_default_audio_sample_t *buffer;
+		buffer = (jack_default_audio_sample_t *)jack_port_get_buffer(params->drums[i].port, nframes);
+		for(int j = 0; j < nframes; j++) {
+			if(j == pos) params->drums[i].samples[0].p = -j;
+			offset_t p = params->drums[i].samples[0].p;
+			size_t data_size = params->drums[i].samples[0].data_size;
+			jack_default_audio_sample_t *samples = params->drums[i].samples[0].data;
+			if(p+j > data_size) buffer[j] = 0;
+			else buffer[j] = samples[(j + p) % data_size];
+			//      params->drums[i].samples[0].p ++;
+		}
+		params->drums[i].samples[0].p += nframes;
+	}
+  */
+	return 0;
+}
+
+void JackClient::thread_init()
+{
+}
+
+void JackClient::freewheel_mode(int freewheel_mode)
+{
+}
+
+int JackClient::buffer_size(jack_nframes_t nframes)
+{
+  return 0;
+}
+
+int JackClient::sample_rate(jack_nframes_t nframes)
+{
+  return 0;
+}
+
+void JackClient::port_registration(jack_port_id_t port, int i)
+{
+}
+
+int JackClient::graph_order()
+{
+  return 0;
+}
+
+int JackClient::xrun()
+{
+  return 0;
+}