remove empty sigc++2 directory

git-svn-id: svn://localhost/ardour2/branches/3.0@3432 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 0 insertions, 1949 deletions

diff --git a/libs/surfaces/frontier/tranzport/tranzport_control_protocol.cc b/libs/surfaces/frontier/tranzport/tranzport_control_protocol.cc
deleted file mode 100644
index c874a05de5..0000000000
--- a/libs/surfaces/frontier/tranzport/tranzport_control_protocol.cc
+++ /dev/null
@@ -1,1949 +0,0 @@
-/*
-    Copyright (C) 2006 Paul Davis 
-
-    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
-    (at your option) 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.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-
-/* Design notes: The tranzport is a unique device, basically a 
-   20 lcd gui with 22 shift keys and 8 blinking lights. 
-
-   As such it has several unique constraints. The device exerts flow control
-   by having a usb write fail. It is pointless to retry madly at that point,
-   the device is busy, and it's not going to become unbusy very quickly. 
-
-   So writes need to be either "mandatory" or "unreliable", and therein 
-   lies the rub, as the kernel can also drop writes, and missing an
-   interrupt in userspace is also generally bad.
-
-   It will be good one day, to break the gui, keyboard, and blinking light
-   components into separate parts, but for now, this remains monolithic.
-
-   A more complex surface might have hundreds of lights and several displays.
-
-   mike.taht@gmail.com
- */
-
-#define DEFAULT_USB_TIMEOUT 10
-#define MAX_RETRY 1
-#define MAX_TRANZPORT_INFLIGHT 4
-#define DEBUG_TRANZPORT 0
-#define HAVE_TRANZPORT_KERNEL_DRIVER 0
-
-#include <iostream>
-#include <algorithm>
-#include <cmath>
-
-#define __STDC_FORMAT_MACROS
-#include <inttypes.h>
-#include <float.h>
-#include <sys/time.h>
-#include <errno.h>
-
-#include <pbd/pthread_utils.h>
-
-#include <ardour/route.h>
-#include <ardour/audio_track.h>
-#include <ardour/session.h>
-#include <ardour/tempo.h>
-#include <ardour/location.h>
-#include <ardour/dB.h>
-
-#include "tranzport_control_protocol.h"
-
-using namespace ARDOUR;
-using namespace std;
-using namespace sigc;
-using namespace PBD;
-
-#include "i18n.h"
-
-#include <pbd/abstract_ui.cc>
-
-BaseUI::RequestType LEDChange = BaseUI::new_request_type ();
-BaseUI::RequestType Print = BaseUI::new_request_type ();
-BaseUI::RequestType SetCurrentTrack = BaseUI::new_request_type ();
-
-/* Base Tranzport cmd strings */
-
-static const uint8_t cmd_light_on[] =  { 0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00 };
-static const uint8_t cmd_light_off[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
-static const uint8_t cmd_write_screen[] =  { 0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00 };
-
-static inline double 
-gain_to_slider_position (ARDOUR::gain_t g)
-{
-	if (g == 0) return 0;
-	return pow((6.0*log(g)/log(2.0)+192.0)/198.0, 8.0);
-
-}
-
-static inline ARDOUR::gain_t 
-slider_position_to_gain (double pos)
-{
-	/* XXX Marcus writes: this doesn't seem right to me. but i don't have a better answer ... */
-	if (pos == 0.0) return 0;
-	return pow (2.0,(sqrt(sqrt(sqrt(pos)))*198.0-192.0)/6.0);
-}
-
-
-TranzportControlProtocol::TranzportControlProtocol (Session& s)
-	: ControlProtocol  (s, X_("Tranzport"))
-{
-	/* tranzport controls one track at a time */
-
-	set_route_table_size (1);
-	timeout = 6000; // what is this for?
-	buttonmask = 0;
-	_datawheel = 0;
-	_device_status = STATUS_OFFLINE;
-	udev = 0;
-	current_track_id = 0;
-	last_where = max_frames;
-	wheel_mode = WheelTimeline;
-	wheel_shift_mode = WheelShiftGain;
-	wheel_increment = WheelIncrScreen;
-	bling_mode = BlingOff;
-	timerclear (&last_wheel_motion);
-	last_wheel_dir = 1;
-	last_track_gain = FLT_MAX;
-	display_mode = DisplayNormal;
-	gain_fraction = 0.0;
-	invalidate();
-	screen_init();
-	lights_init();
-	print(0,0,"!!Welcome to Ardour!!");
-	print(1,0,"!Peace through Music!");
-}
-
-void TranzportControlProtocol::light_validate (LightID light) 
-{
-	lights_invalid[light] = 0;
-}
-
-void TranzportControlProtocol::light_invalidate (LightID light) 
-{
-	lights_invalid[light] = 1;
-}
-
-void TranzportControlProtocol::lights_validate () 
-{
-	memset (lights_invalid, 0, sizeof (lights_invalid)); 
-}
-
-void TranzportControlProtocol::lights_invalidate () 
-{
-	memset (lights_invalid, 1, sizeof (lights_invalid)); 
-}
-
-void TranzportControlProtocol::lights_init()
-{
-	for (uint32_t i = 0; i < sizeof(lights_current)/sizeof(lights_current[0]); i++) {
-		lights_invalid[i] = lights_current[i] = 
-			lights_pending[i] = lights_flash[i] = false;
-	}
-}
-
-
-
-int
-TranzportControlProtocol::lights_flush ()
-{
-	if ( _device_status == STATUS_OFFLINE) { return (0); }
-
-	//  Figure out iterators one day soon
-	//  for (LightID i = i.start(), i = i.end(); i++) {
-	//  if (lights_pending[i] != lights_current[i] || lights_invalid[i]) {
-	//    if (light_set(i, lights_pending[i])) { 
-	//       return i-1;
-	//    } 
-	//  }
-	//}
-	if ((lights_pending[LightRecord] != lights_current[LightRecord]) || lights_invalid[LightRecord]) {
-		if (light_set(LightRecord,lights_pending[LightRecord])) {
-			return 1;
-		}
-	}
-	if ((lights_pending[LightTrackrec] != lights_current[LightTrackrec]) || lights_invalid[LightTrackrec]) {
-		if (light_set(LightTrackrec,lights_pending[LightTrackrec])) {
-			return 1;
-		}
-	}
-
-	if ((lights_pending[LightTrackmute] != lights_current[LightTrackmute]) || lights_invalid[LightTrackmute]) {
-		if (light_set(LightTrackmute,lights_pending[LightTrackmute])) {
-			return 1;
-		}
-	}
-
-	if ((lights_pending[LightTracksolo] != lights_current[LightTracksolo]) || lights_invalid[LightTracksolo]) {
-		if (light_set(LightTracksolo,lights_pending[LightTracksolo])) {
-			return 1;
-		}
-	}
-	if ((lights_pending[LightAnysolo] != lights_current[LightAnysolo]) || lights_invalid[LightAnysolo]) {
-		if (light_set(LightAnysolo,lights_pending[LightAnysolo])) {
-			return 1;
-		}
-	}
-	if ((lights_pending[LightLoop] != lights_current[LightLoop]) || lights_invalid[LightLoop]) {
-		if (light_set(LightLoop,lights_pending[LightLoop])) {
-			return 1;
-		}
-	}
-	if ((lights_pending[LightPunch] != lights_current[LightPunch]) || lights_invalid[LightPunch]) {
-		if (light_set(LightPunch,lights_pending[LightPunch])) {
-			return 1;
-		}
-	}
-
-	return 0;
-}
-
-// Screen specific commands
-
-void
-TranzportControlProtocol::screen_clear ()
-{
-	const char *blank = "                    ";
-	print(0,0,blank); 
-	print(1,0,blank);
-}
-
-void TranzportControlProtocol::screen_invalidate ()
-{
-	for(int row = 0; row < 2; row++) {
-		for(int col = 0; col < 20; col++) {
-			screen_invalid[row][col] = true;
-			screen_current[row][col] = 0x7f;
-			screen_pending[row][col] = ' ';
-			// screen_flash[row][col] = ' ';
-		}
-	}
-	// memset (&screen_invalid, 1, sizeof(screen_invalid));
-	// memset (&screen_current, 0x7F, sizeof (screen_current)); // fill cache with a character we otherwise never use
-}
-
-void TranzportControlProtocol::screen_validate ()
-{
-}
-
-void TranzportControlProtocol::screen_init ()
-{
-	screen_invalidate();
-}
-
-int
-TranzportControlProtocol::screen_flush ()
-{
-	int cell = 0, row, col_base, col, pending = 0;
-	if ( _device_status == STATUS_OFFLINE) { return (-1); }
-
-	for (row = 0; row < 2 && pending == 0; row++) {
-		for (col_base = 0, col = 0; col < 20 && pending == 0; ) {
-			if ((screen_pending[row][col] != screen_current[row][col]) 
-					|| screen_invalid[row][col]) {
-
-				/* something in this cell is different, so dump the cell to the device. */
-
-				uint8_t cmd[8]; 
-				cmd[0] = 0x00; 
-				cmd[1] = 0x01; 
-				cmd[2] = cell; 
-				cmd[3] = screen_pending[row][col_base]; 
-				cmd[4] = screen_pending[row][col_base+1];
-				cmd[5] = screen_pending[row][col_base+2]; 
-				cmd[6] = screen_pending[row][col_base+3];
-				cmd[7] = 0x00;
-
-				if(write(cmd) != 0) {
-					/* try to update this cell on the next go-round */
-#if DEBUG_TRANZPORT > 4
-					printf("usb screen update failed for some reason... why? \ncmd and data were %02x %02x %02x %02x %02x %02x %02x %02x\n", 
-							cmd[0],cmd[1],cmd[2], cmd[3], cmd[4], cmd[5],cmd[6],cmd[7]); 
-#endif
-					pending += 1;	
-					// Shouldn't need to do this
-					// screen_invalid[row][col_base] = screen_invalid[row][col_base+1] = 
-					// screen_invalid[row][col_base+2] = screen_invalid[row][col_base+3] = true;
-
-				} else {
-					/* successful write: copy to current cached display */
-					screen_invalid[row][col_base] = screen_invalid[row][col_base+1] = 
-						screen_invalid[row][col_base+2] = screen_invalid[row][col_base+3] = false;
-					memcpy (&screen_current[row][col_base], &screen_pending[row][col_base], 4);
-				}
-
-				/* skip the rest of the 4 character cell since we wrote+copied it already */
-
-				col_base += 4;
-				col = col_base;
-				cell++;
-
-			} else {
-
-				col++;
-
-				if (col && col % 4 == 0) {
-					cell++;
-					col_base += 4;
-				}
-			}
-		}
-	}
-	return pending;
-}
-
-
-//  Tranzport specific
-
-void TranzportControlProtocol::invalidate() 
-{
-	lcd_damage(); lights_invalidate(); screen_invalidate(); // one of these days lcds can be fine but screens not
-}
-
-TranzportControlProtocol::~TranzportControlProtocol ()
-{
-	set_active (false);
-}
-
-
-int
-TranzportControlProtocol::set_active (bool yn)
-{
-	if (yn != _active) {
-
-		if (yn) {
-
-			if (open ()) {
-				return -1;
-			}
-
-			if (pthread_create_and_store (X_("tranzport monitor"), &thread, 0, _monitor_work, this) == 0) {
-				_active = true;
-			} else {
-				return -1;
-			}
-
-		} else {
-			cerr << "Begin tranzport shutdown\n";
-			screen_clear ();
-			lcd_damage();
-			lights_off ();
-			for(int x = 0; x < 10 && flush(); x++) { usleep(1000); }
-			pthread_cancel_one (thread);
-			cerr << "Tranzport Thread dead\n";
-			close ();
-			_active = false;
-			cerr << "End tranzport shutdown\n";
-		} 
-	}
-
-	return 0;
-}
-
-void
-TranzportControlProtocol::show_track_gain ()
-{
-	if (route_table[0]) {
-		gain_t g = route_get_gain (0);
-		if ((g != last_track_gain) || lcd_isdamaged(0,9,8)) {
-			char buf[16]; 
-			snprintf (buf, sizeof (buf), "%6.1fdB", coefficient_to_dB (route_get_effective_gain (0)));
-			print (0, 9, buf); 
-			last_track_gain = g;
-		}
-	} else {
-		print (0, 9, "        "); 
-	}
-}
-
-void
-TranzportControlProtocol::normal_update ()
-{
-	show_current_track ();
-	show_transport_time ();
-	show_track_gain ();
-	show_wheel_mode ();
-}
-
-void
-TranzportControlProtocol::next_display_mode ()
-{
-	switch (display_mode) {
-
-		case DisplayNormal:
-			enter_big_meter_mode();
-			break;
-
-		case DisplayBigMeter:
-			enter_normal_display_mode();
-			break;
-
-		case DisplayRecording:
-			enter_normal_display_mode();
-			break;
-
-		case DisplayRecordingMeter:
-			enter_big_meter_mode();
-			break;
-
-		case DisplayConfig: 
-		case DisplayBling:
-		case DisplayBlingMeter:
-			enter_normal_display_mode();
-			break;
-	}
-}
-
-// FIXME, these 3 aren't done yet
-
-void
-TranzportControlProtocol::enter_recording_mode ()
-{
-	lcd_damage(); // excessive
-	screen_clear ();
-	lights_off ();
-	display_mode = DisplayRecording;
-}
-
-void
-TranzportControlProtocol::enter_bling_mode ()
-{
-	lcd_damage();
-	screen_clear ();
-	lights_off ();
-	display_mode = DisplayBling;
-}
-
-void
-TranzportControlProtocol::enter_config_mode ()
-{
-	lcd_damage();
-	screen_clear ();
-	lights_off ();
-	display_mode = DisplayConfig;
-}
-
-
-void
-TranzportControlProtocol::enter_big_meter_mode ()
-{
-	screen_clear ();
-	lcd_damage();
-	lights_off ();
-	last_meter_fill = 0;
-	display_mode = DisplayBigMeter;
-}
-
-void
-TranzportControlProtocol::enter_normal_display_mode ()
-{
-	screen_clear ();
-	lcd_damage();
-	lights_off ();
-	display_mode = DisplayNormal;
-	//  normal_update();
-}
-
-
-float
-log_meter (float db)
-{
-	float def = 0.0f; /* Meter deflection %age */
-
-	if (db < -70.0f) return 0.0f;
-	if (db > 6.0f) return 1.0f;
-
-	if (db < -60.0f) {
-		def = (db + 70.0f) * 0.25f;
-	} else if (db < -50.0f) {
-		def = (db + 60.0f) * 0.5f + 2.5f;
-	} else if (db < -40.0f) {
-		def = (db + 50.0f) * 0.75f + 7.5f;
-	} else if (db < -30.0f) {
-		def = (db + 40.0f) * 1.5f + 15.0f;
-	} else if (db < -20.0f) {
-		def = (db + 30.0f) * 2.0f + 30.0f;
-	} else if (db < 6.0f) {
-		def = (db + 20.0f) * 2.5f + 50.0f;
-	}
-
-	/* 115 is the deflection %age that would be 
-	   when db=6.0. this is an arbitrary
-	   endpoint for our scaling.
-	   */
-
-	return def/115.0f;
-}
-
-void
-TranzportControlProtocol::show_meter ()
-{
-	// you only seem to get a route_table[0] on moving forward - bug elsewhere
-	if (route_table[0] == 0) {
-		// Principle of least surprise
-		print (0, 0, "No audio to meter!!!");
-		print (1, 0, "Select another track"); 
-		return;
-	}
-
-	float level = route_get_peak_input_power (0, 0);
-	float fraction = log_meter (level);
-
-	/* Someday add a peak bar*/
-
-	/* we draw using a choice of a sort of double colon-like character ("::") or a single, left-aligned ":".
-	   the screen is 20 chars wide, so we can display 40 different levels. compute the level,
-	   then figure out how many "::" to fill. if the answer is odd, make the last one a ":"
-	   */
-
-	uint32_t fill  = (uint32_t) floor (fraction * 40);
-	char buf[21];
-	uint32_t i;
-
-	if (fill == last_meter_fill) {
-		/* nothing to do */
-		return;
-	}
-
-	last_meter_fill = fill;
-
-	bool add_single_level = (fill % 2 != 0);
-	fill /= 2;
-
-	if (fraction > 0.98) {
-		light_on (LightAnysolo);
-	}
-
-	/* add all full steps */
-
-	for (i = 0; i < fill; ++i) {
-		buf[i] = 0x07; /* tranzport special code for 4 quadrant LCD block */
-	} 
-
-	/* add a possible half-step */
-
-	if (i < 20 && add_single_level) {
-		buf[i] = 0x03; /* tranzport special code for 2 left quadrant LCD block */
-		++i;
-	}
-
-	/* fill rest with space */
-
-	for (; i < 20; ++i) {
-		buf[i] = ' ';
-	}
-
-	/* print() requires this */
-
-	buf[21] = '\0';
-
-	print (0, 0, buf);
-	print (1, 0, buf);
-}
-
-void
-TranzportControlProtocol::show_bbt (nframes_t where)
-{ 
-	if ((where != last_where) || lcd_isdamaged(1,9,8)) {
-		char buf[16];
-		BBT_Time bbt;
-		session->tempo_map().bbt_time (where, bbt);
-		sprintf (buf, "%03" PRIu32 "|%02" PRIu32 "|%04" PRIu32, bbt.bars,bbt.beats,bbt.ticks);
-		last_bars = bbt.bars;
-		last_beats = bbt.beats;
-		last_ticks = bbt.ticks;
-		last_where = where;
-
-		if(last_ticks < 1960) { print (1, 9, buf); } // save a write so we can do leds
-
-		// if displaymode is recordmode show beats but not yet
-		lights_pending[LightRecord] = false;
-		lights_pending[LightAnysolo] = false;
-		switch(last_beats) {
-			case 1: if(last_ticks < 500 || last_ticks > 1960) lights_pending[LightRecord] = true; break;
-			default: if(last_ticks < 250) lights_pending[LightAnysolo] = true;
-		}
-
-		// update lights for tempo one day
-		//        if (bbt_upper_info_label) {
-		//     TempoMap::Metric m (session->tempo_map().metric_at (when));
-		//     sprintf (buf, "%-5.2f", m.tempo().beats_per_minute());
-		//      bbt_lower_info_label->set_text (buf);
-		//      sprintf (buf, "%g|%g", m.meter().beats_per_bar(), m.meter().note_divisor());
-		//      bbt_upper_info_label->set_text (buf);
-	}
-	}
-
-
-void
-TranzportControlProtocol::show_transport_time ()
-{
-	nframes_t where = session->transport_frame();
-	show_bbt(where);
-}	
-
-void
-TranzportControlProtocol::show_smpte (nframes_t where)
-{
-	if ((where != last_where) || lcd_isdamaged(1,9,10)) {
-
-		char buf[5];
-		SMPTE::Time smpte;
-
-		session->smpte_time (where, smpte);
-
-		if (smpte.negative) {
-			sprintf (buf, "-%02" PRIu32 ":", smpte.hours);
-		} else {
-			sprintf (buf, " %02" PRIu32 ":", smpte.hours);
-		}
-		print (1, 8, buf);
-
-		sprintf (buf, "%02" PRIu32 ":", smpte.minutes);
-		print (1, 12, buf);
-
-		sprintf (buf, "%02" PRIu32 ":", smpte.seconds);
-		print (1, 15, buf);
-
-		sprintf (buf, "%02" PRIu32, smpte.frames);
-		print_noretry (1, 18, buf); 
-
-		last_where = where;
-	}
-}
-
-void*
-TranzportControlProtocol::_monitor_work (void* arg)
-{
-	return static_cast<TranzportControlProtocol*>(arg)->monitor_work ();
-}
-
-// I note that these usb specific open, close, probe, read routines are basically 
-// pure boilerplate and could easily be abstracted elsewhere
-
-#if !HAVE_TRANZPORT_KERNEL_DRIVER
-
-bool
-TranzportControlProtocol::probe ()
-{
-	struct usb_bus *bus;
-	struct usb_device *dev;
-
-	usb_init();
-	usb_find_busses();
-	usb_find_devices();
-
-	for (bus = usb_busses; bus; bus = bus->next) {
-
-		for(dev = bus->devices; dev; dev = dev->next) {
-			if (dev->descriptor.idVendor == VENDORID && dev->descriptor.idProduct == PRODUCTID) {
-				return true; 
-			}
-		}
-	}
-
-	return false;
-}
-
-int
-TranzportControlProtocol::open ()
-{
-	struct usb_bus *bus;
-	struct usb_device *dev;
-
-	usb_init();
-	usb_find_busses();
-	usb_find_devices();
-
-	for (bus = usb_busses; bus; bus = bus->next) {
-
-		for(dev = bus->devices; dev; dev = dev->next) {
-			if (dev->descriptor.idVendor != VENDORID)
-				continue;
-			if (dev->descriptor.idProduct != PRODUCTID)
-				continue;
-			return open_core (dev);
-		}
-	}
-
-	error << _("Tranzport: no device detected") << endmsg;
-	return -1;
-}
-
-int
-TranzportControlProtocol::open_core (struct usb_device* dev)
-{
-	if (!(udev = usb_open (dev))) {
-		error << _("Tranzport: cannot open USB transport") << endmsg;
-		return -1;
-	}
-	 
-	if (usb_claim_interface (udev, 0) < 0) {
-		error << _("Tranzport: cannot claim USB interface") << endmsg;
-		usb_close (udev);
-		udev = 0;
-		return -1;
-	}
-
-	if (usb_set_configuration (udev, 1) < 0) {
-		cerr << _("Tranzport: cannot configure USB interface") << endmsg;
-	}
-
-	return 0;
-}
-
-int
-TranzportControlProtocol::close ()
-{
-	int ret = 0;
-
-	if (udev == 0) {
-		return 0;
-	}
-
-	if (usb_release_interface (udev, 0) < 0) {
-		error << _("Tranzport: cannot release interface") << endmsg;
-		ret = -1;
-	}
-
-	if (usb_close (udev)) {
-		error << _("Tranzport: cannot close device") << endmsg;
-		udev = 0;
-		ret = 0;
-	}
-
-	return ret;
-}
-
-int TranzportControlProtocol::read(uint8_t *buf, uint32_t timeout_override) 
-{
-	int val;
-	// Get smarter about handling usb errors soon. Like disconnect
-	//  pthread_testcancel();
-	val = usb_interrupt_read (udev, READ_ENDPOINT, (char *) buf, 8, 10);
-	//  pthread_testcancel();
-	return val;
-} 
-
-	
-int
-TranzportControlProtocol::write_noretry (uint8_t* cmd, uint32_t timeout_override)
-{
-	int val;
-	if(inflight > MAX_TRANZPORT_INFLIGHT) { return (-1); }
-	val = usb_interrupt_write (udev, WRITE_ENDPOINT, (char*) cmd, 8, timeout_override ? timeout_override : timeout);
-
-	if (val < 0) {
-#if DEBUG_TRANZPORT
-		printf("usb_interrupt_write failed: %d\n", val);
-#endif
-		return val;
-		}
-
-	if (val != 8) {
-#if DEBUG_TRANZPORT
-		printf("usb_interrupt_write failed: %d\n", val);
-#endif
-		return -1;
-		}
-	++inflight;
-
-	return 0;
-
-}	
-
-int
-TranzportControlProtocol::write (uint8_t* cmd, uint32_t timeout_override)
-{
-#if MAX_RETRY > 1
-	int val;
-	int retry = 0;
-	if(inflight > MAX_TRANZPORT_INFLIGHT) { return (-1); }
-	
-	while((val = usb_interrupt_write (udev, WRITE_ENDPOINT, (char*) cmd, 8, timeout_override ? timeout_override : timeout))!=8 && retry++ < MAX_RETRY) {
-		printf("usb_interrupt_write failed, retrying: %d\n", val);
-	}
-
-	if (retry == MAX_RETRY) {
-		printf("Too many retries on a tranzport write, aborting\n");
-		}
-
-	if (val < 0) {
-		printf("usb_interrupt_write failed: %d\n", val);
-		return val;
-		}
-	if (val != 8) {
-		printf("usb_interrupt_write failed: %d\n", val);
-		return -1;
-		}
-	++inflight;
-	return 0;
-#else
-	return (write_noretry(cmd,timeout_override));
-#endif
-
-}	
-
-#else
-#error Kernel API not defined yet for Tranzport
-// Something like open(/dev/surface/tranzport/event) for reading and raw for writing)
-#endif
-
-// We have a state "Unknown" - STOP USING SPACES FOR IT - switching to arrow character
-// We have another state - no_retry. Misleading, as we still retry on the next pass
-// I think it's pointless to keep no_retry and instead we should throttle writes 
-// We have an "displayed" screen
-// We always draw into the pending screen, which could be any of several screens
-// We have an active screen
-// Print arg - we have 
-// setactive
-// so someday I think we need a screen object.
-
-/*
-screen_flash.clear();
-screen_flash.print(0,0,"Undone:"); // Someday pull the undo stack from somewhere
-screen_flash.print(1,0,"Nextup:"); 
-
-if(flash_messages && lcd.getactive() != screen_flash) lcd.setactive(screen_flash,2000);
-
-screen::setactive(screen_name,duration); // duration in ms
-screen::getactive();
-*/
-
-
-int
-TranzportControlProtocol::flush ()
-{
-	int pending = 0;
-	if(!(pending = lights_flush())) {
-		pending = screen_flush(); 
-	} 
-	return pending;
-}
-
-// doing these functions made me realize that screen_invalid should be lcd_isdamaged FIXME soon
-
-bool TranzportControlProtocol::lcd_damage() 
-{
-	screen_invalidate();
-	return true;
-}
-
-bool TranzportControlProtocol::lcd_damage (int row, int col, int length)
-{
-	bool result = false;
-	int endcol = col+length-1;
-	if((endcol > 19)) { endcol = 19; } 
-	if((row >= 0 && row < 2) && (col >=0 && col < 20)) {
-		for(int c = col; c < endcol; c++) {
-			screen_invalid[row][c] = true;
-		}
-		result = true;
-	}
-	return result;
-}
-
-// Gotta switch to bitfields, this is collossally dumb
-// Still working on the layering, arguably screen_invalid should be lcd_invalid
-
-bool TranzportControlProtocol::lcd_isdamaged () 
-{
-	for(int r = 0; r < 2; r++) {
-		for(int c = 0; c < 20; c++) {
-			if(screen_invalid[r][c]) {
-#if DEBUG_TRANZPORT > 5	
-				printf("row: %d,col: %d is damaged, should redraw it\n", r,c);
-#endif
-				return true;
-			}
-		}
-	}
-	return false;
-}
-
-bool TranzportControlProtocol::lcd_isdamaged (int row, int col, int length)
-{
-	bool result = 0;
-	int endcol = col+length;
-	if((endcol > 19)) { endcol = 19; } 
-	if((row >= 0 && row < 2) && (col >=0 && col < 20)) {
-		for(int c = col; c < endcol; c++) {
-			if(screen_invalid[row][c]) {
-#if DEBUG_TRANZPORT > 5	
-				printf("row: %d,col: %d is damaged, should redraw it\n", row,c);
-#endif
-				return true;
-			}
-		}
-	}
-	return result;
-}
-
-// lcd_clear would be a separate function for a smart display
-// here it does nothing, but for the sake of completeness it should
-// probably write the lcd, and while I'm on the topic it should probably
-// take a row, col, length argument....
-
-void
-TranzportControlProtocol::lcd_clear ()
-{
-
-}
-
-// These lcd commands are not universally used yet and may drop out of the api
-
-int
-TranzportControlProtocol::lcd_flush ()
-{
-	return 0; 
-}
-
-int 
-TranzportControlProtocol::lcd_write(uint8_t* cmd, uint32_t timeout_override)
-{
-	return write(cmd,timeout_override);
-}
-
-void 
-TranzportControlProtocol::lcd_fill (uint8_t fill_char) 
-{
-}
-
-void 
-TranzportControlProtocol::lcd_print (int row, int col, const char* text) 
-{
-	print(row,col,text);
-}
-
-void TranzportControlProtocol::lcd_print_noretry (int row, int col, const char* text)
-{
-	print(row,col,text);
-}
-
-// Lights are buffered
-
-void
-TranzportControlProtocol::lights_on ()
-{
-	lights_pending[LightRecord] = lights_pending[LightTrackrec] = 
-		lights_pending[LightTrackmute] =  lights_pending[LightTracksolo] = 
-		lights_pending[LightAnysolo] =   lights_pending[LightLoop] = 
-		lights_pending[LightPunch] = true;
-}
-
-void
-TranzportControlProtocol::lights_off ()
-{
-	lights_pending[LightRecord] = lights_pending[LightTrackrec] = 
-		lights_pending[LightTrackmute] =  lights_pending[LightTracksolo] = 
-		lights_pending[LightAnysolo] =   lights_pending[LightLoop] = 
-		lights_pending[LightPunch] = false;
-}
-
-int
-TranzportControlProtocol::light_on (LightID light)
-{
-	lights_pending[light] = true;
-	return 0;
-}
-
-int
-TranzportControlProtocol::light_off (LightID light)
-{
-	lights_pending[light] = false;
-	return 0;
-}
-
-int
-TranzportControlProtocol::light_set (LightID light, bool offon)
-{
-	uint8_t cmd[8];
-	cmd[0] = 0x00;  cmd[1] = 0x00;  cmd[2] = light;  cmd[3] = offon;
-	cmd[4] = 0x00;  cmd[5] = 0x00;  cmd[6] = 0x00;  cmd[7] = 0x00;
-
-	if (write (cmd) == 0) {
-		lights_current[light] = offon;
-		lights_invalid[light] = false;
-		return 0;
-	} else {
-		return -1;
-	}
-}
-
-int TranzportControlProtocol::rtpriority_set(int priority) 
-{
-	struct sched_param rtparam;
-	int err;
-	// preallocate and memlock some stack with memlock?
-	char *a = (char*) alloca(4096*2); a[0] = 'a'; a[4096] = 'b';
-	memset (&rtparam, 0, sizeof (rtparam));
-	rtparam.sched_priority = priority; /* XXX should be relative to audio (JACK) thread */
-	// Note - try SCHED_RR with a low limit 
-	// - we don't care if we can't write everything this ms
-	// and it will help if we lose the device
-	if ((err = pthread_setschedparam (pthread_self(), SCHED_FIFO, &rtparam)) != 0) {
-		PBD::info << string_compose (_("%1: thread not running with realtime scheduling (%2)"), name(), strerror (errno)) << endmsg;
-		return 1;
-	} 
-	return 0;
-}
-
-// Running with realtime privs is bad when you have problems
-
-int TranzportControlProtocol::rtpriority_unset(int priority) 
-{
-	struct sched_param rtparam;
-	int err;
-	memset (&rtparam, 0, sizeof (rtparam));
-	rtparam.sched_priority = priority; 	
-	if ((err = pthread_setschedparam (pthread_self(), SCHED_FIFO, &rtparam)) != 0) {
-		PBD::info << string_compose (_("%1: can't stop realtime scheduling (%2)"), name(), strerror (errno)) << endmsg;
-		return 1;
-	} 
-	PBD::info << string_compose (_("%1: realtime scheduling stopped (%2)"), name(), strerror (errno)) << endmsg;
-	return 0;
-}
-
-// Slowly breaking this into where I can make usb processing it's own thread.
-
-void*
-TranzportControlProtocol::monitor_work ()
-{
-	uint8_t buf[8];
-	int val = 0, pending = 0;
-	bool first_time = true;
-	uint8_t offline = 0;
-
-
-	PBD::ThreadCreated (pthread_self(), X_("Tranzport"));
-	pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, 0);
-	pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
-	next_track ();
-	rtpriority_set();
-	inflight=0;
-	flush();
-
-	while (true) {
-
-		/* bInterval for this beastie is 10ms */
-
-		if (_device_status == STATUS_OFFLINE) {
-			first_time = true;
-			if(offline++ == 1) { 
-				cerr << "Transport has gone offline\n";
-			}
-		} else { 
-			offline = 0; // hate writing this
-		}
-
-		val = read(buf);
-
-		if (val == 8) {
-			process (buf);
-		}
-
-#if DEBUG_TRANZPORT > 2
-		if(inflight > 1) printf("Inflight: %d\n", inflight);
-#endif
-
-
-		if (_device_status != STATUS_OFFLINE) {
-			if (first_time) {
-				invalidate();
-				lcd_clear ();
-				lights_off ();
-				first_time = false;
-				offline = 0;
-				pending = 3; // Give some time for the device to recover
-			}
-			/* update whatever needs updating */
-			update_state ();
-
-			/* still struggling with a good means of exerting flow control */
-			// pending = flush();
-
-			if(pending == 0) {
-				pending = flush(); 
-			} else {
-				if(inflight > 0) {
-					pending = --inflight; // we just did a whole bunch of writes so wait
-				} else {
-					pending = 0;
-				}
-			}
-			// pending = 0;
-		} 
-	}
-
-	return (void*) 0;
-}
-
-int TranzportControlProtocol::lights_show_recording() 
-{
-	//   FIXME, flash recording light when recording and transport is moving
-	return     lights_show_normal();
-}
-
-// gotta do bling next!
-
-int TranzportControlProtocol::lights_show_bling() 
-{
-	switch (bling_mode) {
-		case BlingOff: break;
-		case BlingKit: break; // rotate rec/mute/solo/any solo back and forth
-		case BlingRotating: break; // switch between lights
-		case BlingPairs: break; // Show pairs of lights
-		case BlingRows: break; // light each row in sequence
-		case BlingFlashAll: break; // Flash everything randomly
-	}
-	return 0;
-}
-
-int TranzportControlProtocol::lights_show_normal() 
-{
-	/* Track only */
-
-	if (route_table[0]) {
-		boost::shared_ptr<AudioTrack> at = boost::dynamic_pointer_cast<AudioTrack> (route_table[0]);
-		lights_pending[LightTrackrec]  = at && at->record_enabled();
-		lights_pending[LightTrackmute] = route_get_muted(0); 
-		lights_pending[LightTracksolo] = route_get_soloed(0);
-	} else {
-		lights_pending[LightTrackrec]  = false;
-		lights_pending[LightTracksolo] = false;
-		lights_pending[LightTrackmute] = false;
-	}
-
-	/* Global settings */
-
-	lights_pending[LightLoop]        = session->get_play_loop(); 
-	lights_pending[LightPunch]       = Config->get_punch_in() || Config->get_punch_out();
-	lights_pending[LightRecord]      = session->get_record_enabled();
-	lights_pending[LightAnysolo]     = session->soloing();
-
-	return 0;
-}
-
-int TranzportControlProtocol::lights_show_tempo() 
-{
-	// someday soon fiddle with the lights based on the tempo 
-	return     lights_show_normal();
-}
-
-int
-TranzportControlProtocol::update_state ()
-{
-	/* do the text and light updates */
-
-	switch (display_mode) {
-		case DisplayBigMeter:
-			lights_show_tempo();
-			show_meter ();
-			break;
-
-		case DisplayNormal:
-			lights_show_normal();
-			normal_update ();
-			break;
-
-		case DisplayConfig:
-			break;
-
-		case DisplayRecording:
-			lights_show_recording();
-			normal_update(); 
-			break;
-
-		case DisplayRecordingMeter:
-			lights_show_recording();
-			show_meter(); 
-			break;
-
-		case DisplayBling:
-			lights_show_bling();
-			normal_update();
-			break;
-
-		case DisplayBlingMeter:
-			lights_show_bling();
-			show_meter();
-			break;
-	}
-	return 0;
-
-}
-
-#define TRANZPORT_BUTTON_HANDLER(callback, button_arg) if (button_changes & button_arg) { \
-    if (buttonmask & button_arg) { \
-      callback##_press (buttonmask&ButtonShift); } else { callback##_release (buttonmask&ButtonShift); } }
-
-int
-TranzportControlProtocol::process (uint8_t* buf)
-{
-	// printf("read: %02x %02x %02x %02x %02x %02x %02x %02x\n", buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7]);
-
-	uint32_t this_button_mask;
-	uint32_t button_changes;
-
-	_device_status = buf[1];
-
-	this_button_mask = 0;
-	this_button_mask |= buf[2] << 24;
-	this_button_mask |= buf[3] << 16;
-	this_button_mask |= buf[4] << 8;
-	this_button_mask |= buf[5];
-	_datawheel = buf[6];
-
-	button_changes = (this_button_mask ^ buttonmask);
-	buttonmask = this_button_mask;
-
-	if (_datawheel) {
-		datawheel ();
-	}
-
-	// SHIFT + STOP + PLAY for bling mode?
-	// if (button_changes & ButtonPlay & ButtonStop) {
-	// bling_mode_toggle();  
-	// } or something like that
-
-	TRANZPORT_BUTTON_HANDLER(button_event_battery,ButtonBattery);
-	TRANZPORT_BUTTON_HANDLER(button_event_backlight,ButtonBacklight);
-	TRANZPORT_BUTTON_HANDLER(button_event_trackleft,ButtonTrackLeft);
-	TRANZPORT_BUTTON_HANDLER(button_event_trackright,ButtonTrackRight);
-	TRANZPORT_BUTTON_HANDLER(button_event_trackrec,ButtonTrackRec);
-	TRANZPORT_BUTTON_HANDLER(button_event_trackmute,ButtonTrackMute);
-	TRANZPORT_BUTTON_HANDLER(button_event_tracksolo,ButtonTrackSolo);
-	TRANZPORT_BUTTON_HANDLER(button_event_undo,ButtonUndo);
-	TRANZPORT_BUTTON_HANDLER(button_event_in,ButtonIn);
-	TRANZPORT_BUTTON_HANDLER(button_event_out,ButtonOut);
-	TRANZPORT_BUTTON_HANDLER(button_event_punch,ButtonPunch);
-	TRANZPORT_BUTTON_HANDLER(button_event_loop,ButtonLoop);
-	TRANZPORT_BUTTON_HANDLER(button_event_prev,ButtonPrev);
-	TRANZPORT_BUTTON_HANDLER(button_event_add,ButtonAdd);
-	TRANZPORT_BUTTON_HANDLER(button_event_next,ButtonNext);
-	TRANZPORT_BUTTON_HANDLER(button_event_rewind,ButtonRewind);
-	TRANZPORT_BUTTON_HANDLER(button_event_fastforward,ButtonFastForward);
-	TRANZPORT_BUTTON_HANDLER(button_event_stop,ButtonStop);
-	TRANZPORT_BUTTON_HANDLER(button_event_play,ButtonPlay);
-	TRANZPORT_BUTTON_HANDLER(button_event_record,ButtonRecord);
-	return 0;
-}
-
-void
-TranzportControlProtocol::show_current_track ()
-{
-	char pad[11];
-	char *v;
-	int len;
-	if (route_table[0] == 0) {
-		print (0, 0, "----------");
-		last_track_gain = FLT_MAX;
-	} else {
-		strcpy(pad,"          ");
-		v =  (char *)route_get_name (0).substr (0, 10).c_str();
-		if((len = strlen(v)) > 0) {
-			strncpy(pad,(char *)v,len);
-		}
-		print (0, 0, pad);
-	}
-}
-
-void
-TranzportControlProtocol::button_event_battery_press (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_battery_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_backlight_press (bool shifted)
-{
-#if DEBUG_TRANZPORT
-	printf("backlight pressed\n");
-#endif
-}
-
-void
-TranzportControlProtocol::button_event_backlight_release (bool shifted)
-{
-#if DEBUG_TRANZPORT
-	printf("backlight released\n\n");
-#endif
-	if (shifted) {
-		lcd_damage();
-		lcd_clear();
-		last_where += 1; /* force time redisplay */
-		last_track_gain = FLT_MAX;
-		normal_update(); //  redraw_screen();  
-	}
-}
-
-void
-TranzportControlProtocol::button_event_trackleft_press (bool shifted)
-{
-	prev_track ();
-}
-
-void
-TranzportControlProtocol::button_event_trackleft_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_trackright_press (bool shifted)
-{
-	next_track ();
-}
-
-void
-TranzportControlProtocol::button_event_trackright_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_trackrec_press (bool shifted)
-{
-	if (shifted) {
-		toggle_all_rec_enables ();
-	} else {
-		route_set_rec_enable (0, !route_get_rec_enable (0));
-	}
-}
-
-void
-TranzportControlProtocol::button_event_trackrec_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_trackmute_press (bool shifted)
-{
-	if (shifted) {
-	  // Mute ALL? Something useful when a phone call comes in. Mute master?
-	} else {
-	  route_set_muted (0, !route_get_muted (0));
-	}
-}
-
-void
-TranzportControlProtocol::button_event_trackmute_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_tracksolo_press (bool shifted)
-{
-#if DEBUG_TRANZPORT
-	printf("solo pressed\n");
-#endif
-	if (display_mode == DisplayBigMeter) {
-		light_off (LightAnysolo);
-		return;
-	}
-
-	if (shifted) {
-		session->set_all_solo (!session->soloing());
-	} else {
-		route_set_soloed (0, !route_get_soloed (0));
-	}
-}
-
-void
-TranzportControlProtocol::button_event_tracksolo_release (bool shifted)
-{
-#if DEBUG_TRANZPORT
-	printf("solo released\n");
-#endif
-}
-
-void
-TranzportControlProtocol::button_event_undo_press (bool shifted)
-{
-	if (shifted) {
-		redo (); // someday flash the screen with what was redone
-	} else {
-		undo (); // someday flash the screen with what was undone
-	}
-}
-
-void
-TranzportControlProtocol::button_event_undo_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_in_press (bool shifted)
-{
-	if (shifted) {
-		toggle_punch_in ();
-	} else {
-		ControlProtocol::ZoomIn (); /* EMIT SIGNAL */
-	}
-}
-
-void
-TranzportControlProtocol::button_event_in_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_out_press (bool shifted)
-{
-	if (shifted) {
-		toggle_punch_out ();
-	} else {
-		ControlProtocol::ZoomOut (); /* EMIT SIGNAL */
-	}
-}
-
-void
-TranzportControlProtocol::button_event_out_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_punch_press (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_punch_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_loop_press (bool shifted)
-{
-	if (shifted) {
-		next_wheel_shift_mode ();
-	} else {
-		loop_toggle ();
-	}
-}
-
-void
-TranzportControlProtocol::button_event_loop_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_prev_press (bool shifted)
-{
-	if (shifted) {
-		ControlProtocol::ZoomToSession (); /* EMIT SIGNAL */
-	} else {
-		prev_marker ();
-	}
-}
-
-void
-TranzportControlProtocol::button_event_prev_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_add_press (bool shifted)
-{
-	add_marker ();
-}
-
-void
-TranzportControlProtocol::button_event_add_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_next_press (bool shifted)
-{
-	if (shifted) {
-		next_wheel_mode ();
-	} else {
-		next_marker ();
-	}
-}
-
-void
-TranzportControlProtocol::button_event_next_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_rewind_press (bool shifted)
-{
-	if (shifted) {
-		goto_start ();
-	} else {
-		rewind ();
-	}
-}
-
-void
-TranzportControlProtocol::button_event_rewind_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_fastforward_press (bool shifted)
-{
-	if (shifted) {
-		goto_end ();
-	} else {
-		ffwd ();
-	}
-}
-
-void
-TranzportControlProtocol::button_event_fastforward_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_stop_press (bool shifted)
-{
-	if (shifted) {
-		next_display_mode ();
-	} else {
-		transport_stop ();
-	}
-}
-
-void
-TranzportControlProtocol::button_event_stop_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_play_press (bool shifted)
-{
-	if (shifted) {
-	  set_transport_speed (1.0f);
-	} else {
-	  transport_play ();
-	}
-}
-
-void
-TranzportControlProtocol::button_event_play_release (bool shifted)
-{
-}
-
-void
-TranzportControlProtocol::button_event_record_press (bool shifted)
-{
-	if (shifted) {
-		save_state ();
-	} else {
-		rec_enable_toggle ();
-	}
-}
-
-void
-TranzportControlProtocol::button_event_record_release (bool shifted)
-{
-}
-
-void button_event_mute (bool pressed, bool shifted)
-{
-	static int was_pressed = 0;
-	//  if(pressed) { }
-}
-
-void
-TranzportControlProtocol::datawheel ()
-{
-	if ((buttonmask & ButtonTrackRight) || (buttonmask & ButtonTrackLeft)) {
-
-		/* track scrolling */
-
-		if (_datawheel < WheelDirectionThreshold) {
-			next_track ();
-		} else {
-			prev_track ();
-		}
-
-		timerclear (&last_wheel_motion);
-
-	} else if ((buttonmask & ButtonPrev) || (buttonmask & ButtonNext)) {
-
-		if (_datawheel < WheelDirectionThreshold) {
-			next_marker ();
-		} else {
-			prev_marker ();
-		}
-
-		timerclear (&last_wheel_motion);
-
-	} else if (buttonmask & ButtonShift) {
-
-		/* parameter control */
-
-		if (route_table[0]) {
-			switch (wheel_shift_mode) {
-				case WheelShiftGain:
-					if (_datawheel < WheelDirectionThreshold) {
-						step_gain_up ();
-					} else {
-						step_gain_down ();
-					}
-					break;
-				case WheelShiftPan:
-					if (_datawheel < WheelDirectionThreshold) {
-						step_pan_right ();
-					} else {
-						step_pan_left ();
-					}
-					break;
-
-				case WheelShiftMarker:
-					break;
-
-				case WheelShiftMaster:
-					break;
-
-			}
-		}
-
-		timerclear (&last_wheel_motion);
-
-	} else {
-
-		switch (wheel_mode) {
-			case WheelTimeline:
-				scroll ();
-				break;
-
-			case WheelScrub:
-				scrub ();
-				break;
-
-			case WheelShuttle:
-				shuttle ();
-				break;
-		}
-	}
-}
-
-void
-TranzportControlProtocol::scroll ()
-{
-	float m = 1.0;
-	if (_datawheel < WheelDirectionThreshold) {
-		m = 1.0;
-	} else {
-		m = -1.0;
-	}
-	switch(wheel_increment) {
-		case WheelIncrScreen: ScrollTimeline (0.2*m); break;
-		default: break; // other modes unimplemented as yet
-	}
-}
-
-void
-TranzportControlProtocol::scrub ()
-{
-	float speed;
-	struct timeval now;
-	struct timeval delta;
-	int dir;
-
-	gettimeofday (&now, 0);
-
-	if (_datawheel < WheelDirectionThreshold) {
-		dir = 1;
-	} else {
-		dir = -1;
-	}
-
-	if (dir != last_wheel_dir) {
-		/* changed direction, start over */
-		speed = 0.1f;
-	} else {
-		if (timerisset (&last_wheel_motion)) {
-
-			timersub (&now, &last_wheel_motion, &delta);
-
-			/* 10 clicks per second => speed == 1.0 */
-
-			speed = 100000.0f / (delta.tv_sec * 1000000 + delta.tv_usec);
-
-		} else {
-
-			/* start at half-speed and see where we go from there */
-
-			speed = 0.5f;
-		}
-	}
-
-	last_wheel_motion = now;
-	last_wheel_dir = dir;
-
-	set_transport_speed (speed * dir);
-}
-
-void
-TranzportControlProtocol::config ()
-{
-  // FIXME
-}
-
-void
-TranzportControlProtocol::shuttle ()
-{
-	if (_datawheel < WheelDirectionThreshold) {
-		if (session->transport_speed() < 0) {
-			session->request_transport_speed (1.0);
-		} else {
-			session->request_transport_speed (session->transport_speed() + 0.1);
-		}
-	} else {
-		if (session->transport_speed() > 0) {
-			session->request_transport_speed (-1.0);
-		} else {
-			session->request_transport_speed (session->transport_speed() - 0.1);
-		}
-	}
-}
-
-void
-TranzportControlProtocol::step_gain_up ()
-{
-	if (buttonmask & ButtonStop) {
-		gain_fraction += 0.001;
-	} else {
-		gain_fraction += 0.01;
-	}
-
-	if (gain_fraction > 2.0) {
-		gain_fraction = 2.0;
-	}
-	
-	route_set_gain (0, slider_position_to_gain (gain_fraction));
-}
-
-void
-TranzportControlProtocol::step_gain_down ()
-{
-	if (buttonmask & ButtonStop) {
-		gain_fraction -= 0.001;
-	} else {
-		gain_fraction -= 0.01;
-	}
-
-	if (gain_fraction < 0.0) {
-		gain_fraction = 0.0;
-	}
-	
-	route_set_gain (0, slider_position_to_gain (gain_fraction));
-}
-
-void
-TranzportControlProtocol::step_pan_right ()
-{
-}
-
-void
-TranzportControlProtocol::step_pan_left ()
-{
-}
-
-void
-TranzportControlProtocol::next_wheel_shift_mode ()
-{
-	switch (wheel_shift_mode) {
-	case WheelShiftGain:
-		wheel_shift_mode = WheelShiftPan;
-		break;
-	case WheelShiftPan:
-		wheel_shift_mode = WheelShiftMaster;
-		break;
-	case WheelShiftMaster:
-		wheel_shift_mode = WheelShiftGain;
-		break;
-	case WheelShiftMarker: // Not done yet, disabled
- 	        wheel_shift_mode = WheelShiftGain;
-		break;
-	}
-
-	show_wheel_mode ();
-}
-
-void
-TranzportControlProtocol::next_wheel_mode ()
-{
-	switch (wheel_mode) {
-	case WheelTimeline:
-		wheel_mode = WheelScrub;
-		break;
-	case WheelScrub:
-		wheel_mode = WheelShuttle;
-		break;
-	case WheelShuttle:
-		wheel_mode = WheelTimeline;
-	}
-
-	show_wheel_mode ();
-}
-
-void
-TranzportControlProtocol::next_track ()
-{
-	ControlProtocol::next_track (current_track_id);
-	gain_fraction = gain_to_slider_position (route_get_effective_gain (0));
-}
-
-void
-TranzportControlProtocol::prev_track ()
-{
-	ControlProtocol::prev_track (current_track_id);
-	gain_fraction = gain_to_slider_position (route_get_effective_gain (0));
-}
-
-void
-TranzportControlProtocol::show_wheel_mode ()
-{
-	string text;
-
-	switch (wheel_mode) {
-		case WheelTimeline:
-			text = "Time";
-			break;
-		case WheelScrub:
-			text = "Scrb";
-			break;
-		case WheelShuttle:
-			text = "Shtl";
-			break;
-	}
-
-	switch (wheel_shift_mode) {
-		case WheelShiftGain:
-			text += ":Gain";
-			break;
-
-		case WheelShiftPan:
-			text += ":Pan ";
-			break;
-
-		case WheelShiftMaster:
-			text += ":Mstr";
-			break;
-
-		case WheelShiftMarker:
-			text += ":Mrkr";
-			break;
-	}
-
-	print (1, 0, text.c_str());
-}
-
-// Was going to keep state around saying to retry or not
-// haven't got to it yet, still not sure it's a good idea
-
-void
-TranzportControlProtocol::print (int row, int col, const char *text) {
-	print_noretry(row,col,text);
-}
-
-void
-TranzportControlProtocol::print_noretry (int row, int col, const char *text)
-{
-	int cell;
-	uint32_t left = strlen (text);
-	char tmp[5];
-	int base_col;
-	
-	if (row < 0 || row > 1) {
-		return;
-	}
-
-	if (col < 0 || col > 19) {
-		return;
-	}
-
-	while (left) {
-
-		if (col >= 0 && col < 4) {
-			cell = 0;
-			base_col = 0;
-		} else if (col >= 4 && col < 8) {
-			cell = 1;
-			base_col = 4;
-		} else if (col >= 8 && col < 12) {
-			cell = 2;
-			base_col = 8;
-		} else if (col >= 12 && col < 16) {
-			cell = 3;
-			base_col = 12;
-		} else if (col >= 16 && col < 20) {
-			cell = 4;
-			base_col = 16;
-		} else {
-			return;
-		}
-
-		int offset = col % 4;
-
-		/* copy current cell contents into tmp */
-		
-		memcpy (tmp, &screen_pending[row][base_col], 4);
-		
-		/* overwrite with new text */
-		
-		uint32_t tocopy = min ((4U - offset), left);
-		
-		memcpy (tmp+offset, text, tocopy);
-		
-		/* copy it back to pending */
-		
-		memcpy (&screen_pending[row][base_col], tmp, 4);
-		
-		text += tocopy;
-		left -= tocopy;
-		col  += tocopy;
-	}
-}	
-
-XMLNode&
-TranzportControlProtocol::get_state () 
-{
-	XMLNode* node = new XMLNode (X_("Protocol"));
-	node->add_property (X_("name"), _name);
-	return *node;
-}
-
-int
-TranzportControlProtocol::set_state (const XMLNode& node)
-{
-	return 0;
-}
-
-int
-TranzportControlProtocol::save (char *name) 
-{
-	// Presently unimplemented
-	return 0;
-}
-
-int
-TranzportControlProtocol::load (char *name) 
-{
-	// Presently unimplemented
-	return 0;
-}