display GNX3000 settings in tabs

.hgignore

@@ -6,3 +6,7 @@ syntax: glob
 *.o
 *.patch
 *.diff
+*.m
+*.orig
+knob.h
+gdigi

HACKING

@@ -0,0 +1,78 @@
+In general everything brings down to figure out:
+-ID
+-Position
+-Possible value range
+
+There seems to be three possible ways to figure that out.
+1) Use USB sniffer together with X-Edit
+   Once you set up X-Edit and usb sniffer, set some option.
+   USB sniffer should report something like this being sent to device:
+   (all numbers here are hex)
+   04 F0 00 00 04 10 00 5E 04 02 41 00 04 30 09 00 07 00 34 F7
+
+   To get SysEx command out of it, remove every 4th byte, so we have:
+      F0 00 00    10 00 5E    02 41 00    30 09 00    00 34 F7
+
+   SysEx message format seems to be formed like this:
+   magic bytes - F0 00 00 10 00 5E 02 41
+   status byte - in this example 00
+   ID - in this example 30 09
+   Position - in this example 00
+   Value - in this example 00 (can be more bytes long, see below)
+   Checksum - to calculate it, XOR all bytes, and then XOR it with 07
+   Every message ends with F7
+
+   Status byte bits explained:
+      7th - ???
+      6th - if active add 80 to ID
+      5th - ???
+      4th - is active when value will start with length
+            In such case value can be something like:
+              01 12 or 02 12 34 or 03 12 34 56
+            and proper values are:
+              01 - 12
+              02 - 1234
+              03 - 123456
+      3rd - when 4th bit is also active, and first value byte is 01
+            then add 80 to value
+      2nd - when 4th bit is also active, and first value byte is 02
+            then add 80 to value
+      1st - when 4th bit is also active, and first value byte is 03
+            then add 80 to value
+
+   So for above example:
+   ID = 3009 (hex) = 12297 (decimal)
+   Position = 0
+   One of possible values is 0. Usually value range is 0 to 99,
+   albeit in some cases it's different - you have to check what values can
+   X-Edit assign (there doesn't seem to be any sanity check in firmware)
+   This is especially needed for IDs that set some effect type.
+      
+2) Save preset patch
+   Patches seem to be simple XML files.
+   Every parameter is written like this:
+     <Param>
+       <ID>65</ID>
+       <Position>2</Position>
+       <Value>0</Value>
+       <Name>Pickup Enable</Name>
+       <Text>Off</Text>
+     </Param>
+   ID is ID, Position is Position and Value is one of possible values.
+   To get all possible values you can:
+     do
+       change value to next one possible in X-Edit
+         (for example next effect type)
+       save new patch
+       check patch file and note the change
+     while you don't have all possible values
+3) Use gdigi
+   After starting gdigi turn the knobs on your device.
+   Check out console output, you should notice something like this:
+      ** Message: Received parameter change ID: 210 Position: 4 Value: 0
+   ID is ID, Position is Position and Value is one of possible values.
+   To get all possible values keep turning knobs and watch the output.
+   If you change effect type usually there's more messages - where,
+   usually the first one is type change, and rest are default values.
+   This way you *CANNOT* gather all information (there're X-Edit only
+   controlled values, check device manual for more information).

Makefile

@@ -1,24 +1,43 @@
 CC = gcc
-CFLAGS = `pkg-config --cflags glib-2.0 gtk+-2.0` -Wall -g
+EXTRA_CFLAGS ?=
-OFLAG = -o
+EXTRA_LDFLAGS ?=
-LIBS = `pkg-config --libs glib-2.0 gtk+-2.0 alsa`
+CFLAGS := $(shell pkg-config --cflags glib-2.0 gio-2.0 gtk+-2.0) -Wall -g -ansi -std=c99 $(EXTRA_CFLAGS)
+LDFLAGS := $(shell pkg-config --libs glib-2.0 gio-2.0 gtk+-2.0 gthread-2.0 alsa) -lexpat $(EXTRA_LDFLAGS)
+OBJECTS = gdigi.o gui.o effects.o preset.o gtkknob.o
+DEPFILES = $(foreach m,$(OBJECTS:.o=),.$(m).m)
 
-.SUFFIXES : .o .c
+.PHONY : clean distclean all
-.c.o :
+%.o : %.c
 	$(CC) $(CFLAGS) -c $<
 
+.%.m : %.c
+	$(CC) $(CFLAGS) -M -MF $@ -MG $<
+
 all: gdigi
 
-gdigi: gdigi.o tests.o gui.o
+gdigi: $(OBJECTS) 
-	$(CC) $(LIBS) $(OFLAG) gdigi gdigi.o tests.o gui.o
+	$(CC) $(LDFLAGS) -o $@ $+
 
-gdigi.o: gdigi.c
+knob.h: knob.png
-
+	gdk-pixbuf-csource --name=knob_pixbuf knob.png > $@
-tests.o: tests.c
-
-gui.o: gui.c
 
 clean:
-	rm *.o
+	rm -f *.o
+	rm -f knob.h
 
+distclean : clean
+	rm -f .*.m
+	rm -f gdigi
 
+NODEP_TARGETS := clean distclean
+depinc := 1
+ifneq (,$(filter $(NODEP_TARGETS),$(MAKECMDGOALS)))
+depinc := 0
+endif
+ifneq (,$(fitler-out $(NODEP_TARGETS),$(MAKECMDGOALS)))
+depinc := 1
+endif
+
+ifeq ($(depinc),1)
+-include $(DEPFILES)
+endif

README

@@ -1,4 +1,4 @@
-Requirments: alsa, gtk+, glib
+Requirments: alsa, gtk+, glib, expat
 
 Getting started guide:
 -to compile: make

TODO

@@ -1,11 +1,6 @@
--figure out all magic commands
+-make complete gui (expression pedal settings, usb settings, effect level, preset level)
--make complete gui
+-handling presets (saving, exporting to xml patches)
--amp/cabinet models
+-buildsystem (install knob.png to share dir, don't use inline knob pixbuf)
--expression pedal options
+-various fixes to MIDI IN messages handling
--audio setup options
+-guess device port when user doesn't explicitly provide it (don't use hardcoded "hw:1,0,0")
--tone library
+-optimizations
--effects library
--effects level
--handling presets (loading, saving, exporting/importing to/from xml patches)
--buildsystem
--figure out how to get current device settings, start gui with proper values

effects.h

@@ -0,0 +1,92 @@
+/*
+ *  Copyright (c) 2009 Tomasz Moń <desowin@gmail.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; under version 3 of the License.
+ *
+ *  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, see <http://www.gnu.org/licenses>.
+ */
+
+#ifndef GDIGI_EFFECTS_H
+#define GDIGI_EFFECTS_H
+
+#include <glib.h>
+
+typedef struct {
+    gdouble min;    /**< Minumum value */
+    gdouble max;    /**< Maximum value */
+    GStrv labels;   /**< value labels */
+} EffectValues;
+
+typedef struct {
+    gchar *label;         /**< Parameter name */
+    guint id;             /**< ID (to set parameter) */
+    guint position;       /**< position */
+    EffectValues *values; /**< valid parameter values */
+} EffectSettings;
+
+typedef struct {
+    guint type;                /**< value (type) */
+    gchar *label;              /**< Effect name */
+    EffectSettings *settings;  /**< possible parameters */
+    gint settings_amt;         /**< possible parameters length */
+} EffectGroup;
+
+typedef struct {
+    gchar *label;       /**< Group label */
+    guint id;           /**< ID to set effect on/off, or if it isn't on/off group then -1 */
+    guint type;         /**< ID to set effect type */
+    guint position;     /**< position */
+    EffectGroup *group; /**< possible effect types */
+    gint group_amt;     /**< possible effect types length */
+} Effect;
+
+typedef struct {
+    gchar *label;   /**< base effect name */
+    Effect *effect; /**< list of supported effects */
+    gint amt;       /**< list of supported effects length */
+} EffectList;
+
+typedef struct {
+    guint type;         /**< ID to set effect type */
+    guint position;
+    EffectGroup *group;
+    gint group_amt;
+} ModifierGroup;
+
+typedef struct {
+    gchar *name;
+    EffectList *effects;
+    gint n_effects;
+    gint n_rows;
+} EffectPage;
+
+typedef struct {
+    gchar *name;
+    PresetBank bank;
+} Banks;
+
+typedef struct {
+    gchar *name;
+    unsigned char family_id;
+    unsigned char product_id;
+    EffectPage *pages;
+    gint n_pages;
+    Banks *banks;
+    gint n_banks;
+} Device;
+
+ModifierGroup *modifier_linkable_list();
+void modifier_group_free(ModifierGroup *modifier_group);
+gboolean get_device_info(unsigned char device_id, unsigned char family_id,
+                         unsigned char product_id,
+                         Device **device);
+
+#endif /* GDIGI_EFFECTS_H */

gtkknob.c

@@ -0,0 +1,919 @@
+/*****************************************************************************
+ *
+ * Most of this code comes from gAlan 0.2.0, copyright (C) 1999
+ * Tony Garnock-Jones, with modifications from Sean Bolton,
+ * copyright (C) 2004, William Weston copyright (C) 2007,
+ * Pete Shorthose copyright (C) 2007, and Tomasz Moń,
+ * copyright (C) 2009
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *****************************************************************************/
+
+#include <math.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
+#include "gtkknob.h"
+
+
+#ifndef M_PI
+# define M_PI		3.14159265358979323846	/* pi */
+#endif
+#ifndef M_1_PI
+# define M_1_PI		0.31830988618379067154	/* 1/pi */
+#endif
+
+
+#define SCROLL_DELAY_LENGTH	250
+#define KNOB_SIZE		32	/* this should really be read from the knob image */
+
+#define STATE_IDLE		0
+#define STATE_PRESSED		1
+#define STATE_DRAGGING		2
+
+static void gtk_knob_class_init(GtkKnobClass *klass);
+static void gtk_knob_init(GtkKnob *knob);
+static void gtk_knob_destroy(GtkObject *object);
+static void gtk_knob_realize(GtkWidget *widget);
+static void gtk_knob_size_request(GtkWidget *widget, GtkRequisition *requisition);
+static void gtk_knob_size_allocate(GtkWidget *widget, GtkAllocation *allocation);
+static gint gtk_knob_expose(GtkWidget *widget, GdkEventExpose *event);
+static gint gtk_knob_scroll(GtkWidget *widget, GdkEventScroll *event);
+static gint gtk_knob_button_press(GtkWidget *widget, GdkEventButton *event);
+static gint gtk_knob_button_release(GtkWidget *widget, GdkEventButton *event);
+static gint gtk_knob_key_press(GtkWidget *widget, GdkEventKey *event);
+static gint gtk_knob_motion_notify(GtkWidget *widget, GdkEventMotion *event);
+static gint gtk_knob_timer(GtkKnob *knob);
+
+static void gtk_knob_update_mouse_update(GtkKnob *knob);
+static void gtk_knob_update_mouse(GtkKnob *knob, gint x, gint y, gboolean step);
+static void gtk_knob_update(GtkKnob *knob);
+static void gtk_knob_adjustment_changed(GtkAdjustment *adjustment, gpointer data);
+static void gtk_knob_adjustment_value_changed(GtkAdjustment *adjustment, gpointer data);
+
+/* Local data */
+
+static GtkWidgetClass *parent_class = NULL;
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_get_type()
+ *
+ *****************************************************************************/
+GType
+gtk_knob_get_type(void) {
+    static GType knob_type = 0;
+
+    if (!knob_type) {
+	static const GTypeInfo knob_info = {
+	    sizeof (GtkKnobClass),
+            NULL,
+	    NULL,
+	    (GClassInitFunc) gtk_knob_class_init,
+	    NULL,
+	    NULL,
+	    sizeof (GtkKnob),
+	    0,
+	    (GInstanceInitFunc) gtk_knob_init,
+	};
+	knob_type = g_type_register_static (GTK_TYPE_WIDGET, "GtkKnob", &knob_info, 0);
+    }
+
+    return knob_type;
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_class_init()
+ *
+ *****************************************************************************/
+static void
+gtk_knob_class_init (GtkKnobClass *klass) {
+    GtkObjectClass *object_class;
+    GtkWidgetClass *widget_class;
+
+    object_class = (GtkObjectClass*) klass;
+    widget_class = (GtkWidgetClass*) klass;
+
+    parent_class = g_type_class_peek_parent(klass);
+
+    object_class->destroy = gtk_knob_destroy;
+
+    widget_class->realize              = gtk_knob_realize;
+    widget_class->expose_event         = gtk_knob_expose;
+    widget_class->size_request         = gtk_knob_size_request;
+    widget_class->size_allocate        = gtk_knob_size_allocate;
+    widget_class->scroll_event         = gtk_knob_scroll;
+    widget_class->button_press_event   = gtk_knob_button_press;
+    widget_class->button_release_event = gtk_knob_button_release;
+    widget_class->key_press_event      = gtk_knob_key_press;
+    widget_class->motion_notify_event  = gtk_knob_motion_notify;
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_init()
+ *
+ *****************************************************************************/
+static void
+gtk_knob_init (GtkKnob *knob) {
+    knob->policy     = GTK_UPDATE_CONTINUOUS;
+    knob->state      = STATE_IDLE;
+    knob->saved_x    = 0;
+    knob->saved_y    = 0;
+    knob->timer      = 0;
+    knob->anim       = NULL;
+    knob->mask       = NULL;
+    knob->mask_gc    = NULL;
+    knob->red_gc     = NULL;
+    knob->old_value  = 0.0;
+    knob->old_lower  = 0.0;
+    knob->old_upper  = 0.0;
+    knob->adjustment = NULL;
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_new()
+ *
+ *****************************************************************************/
+GtkWidget *
+gtk_knob_new(GtkAdjustment *adjustment, GtkKnobAnim *anim) {
+    GtkKnob *knob;
+
+    g_return_val_if_fail (anim != NULL, NULL);
+    g_return_val_if_fail (GDK_IS_PIXBUF (anim->pixbuf), NULL);
+
+    knob = g_object_new (gtk_knob_get_type (), NULL);
+
+    gtk_knob_set_animation (knob, anim);
+
+    if (!adjustment) {
+	adjustment = (GtkAdjustment*) gtk_adjustment_new (0.0, 0.0, 0.0,
+							  0.0, 0.0, 0.0);
+    }
+
+    gtk_knob_set_adjustment (knob, adjustment);
+
+    return GTK_WIDGET (knob);
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_destroy()
+ *
+ *****************************************************************************/
+static void
+gtk_knob_destroy(GtkObject *object) {
+    GtkKnob *knob;
+
+    g_return_if_fail (object != NULL);
+    g_return_if_fail (GTK_IS_KNOB (object));
+
+    knob = GTK_KNOB (object);
+
+    gtk_knob_set_adjustment (knob, NULL);
+    /* FIXME: needs ref counting for automatic GtkKnobAnim cleanup
+       if (knob->anim) {
+	   gtk_knob_anim_unref (knob->anim);
+	   knob->anim = NULL;
+       }
+    */
+
+    if (knob->mask) {
+	g_object_unref (knob->mask);
+	knob->mask = NULL;
+    }
+
+    if (knob->mask_gc) {
+	g_object_unref (knob->mask_gc);
+	knob->mask_gc = NULL;
+    }
+    if (knob->red_gc) {
+	g_object_unref (knob->red_gc);
+	knob->red_gc = NULL;
+    }
+
+    if (GTK_OBJECT_CLASS (parent_class)->destroy) {
+	(*GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+    }
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_get_adjustment()
+ *
+ *****************************************************************************/
+GtkAdjustment*
+gtk_knob_get_adjustment(GtkKnob *knob) {
+
+    g_return_val_if_fail (knob != NULL, NULL);
+    g_return_val_if_fail (GTK_IS_KNOB (knob), NULL);
+
+    return knob->adjustment;
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_set_update_policy()
+ *
+ *****************************************************************************/
+void
+gtk_knob_set_update_policy(GtkKnob *knob, GtkUpdateType policy) {
+
+    g_return_if_fail (knob != NULL);
+    g_return_if_fail (GTK_IS_KNOB (knob));
+
+    knob->policy = policy;
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_set_adjustment()
+ *
+ *****************************************************************************/
+void
+gtk_knob_set_adjustment(GtkKnob *knob, GtkAdjustment *adjustment) {
+
+    g_return_if_fail (knob != NULL);
+    g_return_if_fail (GTK_IS_KNOB (knob));
+
+    if (knob->adjustment) {
+	g_signal_handlers_disconnect_matched(knob->adjustment,
+					     G_SIGNAL_MATCH_DATA,
+					     0, 0, NULL, NULL,
+					     knob);
+	g_object_unref (knob->adjustment);
+    }
+
+    knob->adjustment = adjustment;
+    if (adjustment) {
+        g_object_ref_sink (adjustment);
+
+        g_signal_connect (adjustment, "changed",
+    			G_CALLBACK(gtk_knob_adjustment_changed),
+			knob);
+	g_signal_connect (adjustment, "value_changed",
+			G_CALLBACK(gtk_knob_adjustment_value_changed),
+			knob);
+
+	knob->old_value = adjustment->value;
+	knob->old_lower = adjustment->lower;
+	knob->old_upper = adjustment->upper;
+
+	gtk_knob_update (knob);
+    }
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_realize()
+ *
+ *****************************************************************************/
+static void
+gtk_knob_realize(GtkWidget *widget) {
+    GtkKnob *knob;
+    GdkWindowAttr attributes;
+    gint attributes_mask;
+    GdkColor color = { 0, 0xffff, 0, 0 };
+
+    g_return_if_fail (widget != NULL);
+    g_return_if_fail (GTK_IS_KNOB (widget));
+
+    GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+    GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
+    knob = GTK_KNOB (widget);
+
+    attributes.x           = widget->allocation.x;
+    attributes.y           = widget->allocation.y;
+    attributes.width       = widget->allocation.width;
+    attributes.height      = widget->allocation.height;
+    attributes.wclass      = GDK_INPUT_OUTPUT;
+    attributes.window_type = GDK_WINDOW_CHILD;
+    attributes.event_mask  =
+	gtk_widget_get_events (widget) |
+	GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK |
+	GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK |
+	GDK_POINTER_MOTION_HINT_MASK;
+    attributes.visual   = gtk_widget_get_visual (widget);
+    attributes.colormap = gtk_widget_get_colormap (widget);
+
+    attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+
+    widget->window = gdk_window_new (widget->parent->window,
+				     &attributes, attributes_mask);
+
+    widget->style = gtk_style_attach (widget->style, widget->window);
+
+    gdk_window_set_user_data (widget->window, widget);
+
+    gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+
+    knob->mask_gc = gdk_gc_new (widget->window);
+    gdk_gc_copy (knob->mask_gc, widget->style->bg_gc[GTK_STATE_NORMAL]);
+    gdk_gc_set_clip_mask (knob->mask_gc, knob->mask);
+
+    knob->red_gc = gdk_gc_new (widget->window);
+    gdk_gc_copy (knob->red_gc, widget->style->bg_gc[GTK_STATE_NORMAL]);
+    gdk_colormap_alloc_color (attributes.colormap, &color, FALSE, TRUE);
+    gdk_gc_set_foreground (knob->red_gc, &color);
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_size_request()
+ *
+ *****************************************************************************/
+static void
+gtk_knob_size_request (GtkWidget *widget, GtkRequisition *requisition) {
+
+    g_return_if_fail (widget != NULL);
+    g_return_if_fail (GTK_IS_KNOB (widget));
+
+    requisition->width  = GTK_KNOB (widget)->width;
+    requisition->height = GTK_KNOB (widget)->height;
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_size_allocate()
+ *
+ *****************************************************************************/
+static void
+gtk_knob_size_allocate (GtkWidget *widget, GtkAllocation *allocation) {
+    GtkKnob *knob;
+
+    g_return_if_fail (widget != NULL);
+    g_return_if_fail (GTK_IS_KNOB (widget));
+    g_return_if_fail (allocation != NULL);
+
+    widget->allocation = *allocation;
+    knob = GTK_KNOB (widget);
+
+    if (GTK_WIDGET_REALIZED (widget)) {
+	gdk_window_move_resize (widget->window,
+				allocation->x, allocation->y,
+				allocation->width, allocation->height);
+    }
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_expose()
+ *
+ *****************************************************************************/
+static gint
+gtk_knob_expose(GtkWidget *widget, GdkEventExpose *event) {
+    GtkKnob *knob;
+    gfloat dx, dy;
+    gint frames;
+
+    g_return_val_if_fail (widget != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_KNOB (widget), FALSE);
+    g_return_val_if_fail (event != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_ADJUSTMENT (GTK_KNOB (widget)->adjustment), FALSE);
+
+    if (event->count > 0)
+	return FALSE;
+
+    knob = GTK_KNOB (widget);
+
+    frames = ((knob->anim->width / knob->anim->frame_width) - 1);
+    dx = knob->adjustment->value - knob->adjustment->lower;	/* value, from 0 */
+    dy = knob->adjustment->upper - knob->adjustment->lower;	/* range */
+
+    dx = (int)(frames * dx / dy) * knob->width;  /* check this for height != width */
+
+    gdk_draw_pixbuf (widget->window, knob->mask_gc, knob->anim->pixbuf,
+		     dx, 0, 0, 0, knob->width, knob->height,
+		     GDK_RGB_DITHER_NONE, 0, 0);
+
+    if (GTK_WIDGET_HAS_FOCUS(widget)) {
+        gtk_paint_focus (widget->style, widget->window, widget->state,
+                         NULL, widget, NULL, 0, 0,
+                         widget->allocation.width, widget->allocation.height);
+    }
+
+    return FALSE;
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_scroll()
+ *
+ *****************************************************************************/
+static gint
+gtk_knob_scroll(GtkWidget *widget, GdkEventScroll *event) {
+    GtkKnob *knob;
+
+    g_return_val_if_fail (widget != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_KNOB (widget), FALSE);
+    g_return_val_if_fail (event != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_ADJUSTMENT (GTK_KNOB (widget)->adjustment), FALSE);
+
+    knob = GTK_KNOB (widget);
+
+    switch (event->direction) {
+    case GDK_SCROLL_UP:
+	knob->adjustment->value += knob->adjustment->step_increment;
+	g_signal_emit_by_name (knob->adjustment, "value_changed");
+	break;
+    case GDK_SCROLL_DOWN:
+	knob->adjustment->value -= knob->adjustment->step_increment;
+	g_signal_emit_by_name (knob->adjustment, "value_changed");
+	break;
+    default:
+        break;
+    }
+
+    return FALSE;
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_button_press()
+ *
+ *****************************************************************************/
+static gint
+gtk_knob_button_press(GtkWidget *widget, GdkEventButton *event) {
+    GtkKnob *knob;
+
+    g_return_val_if_fail (widget != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_KNOB (widget), FALSE);
+    g_return_val_if_fail (event != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_ADJUSTMENT (GTK_KNOB (widget)->adjustment), FALSE);
+
+    knob = GTK_KNOB (widget);
+
+    switch (knob->state) {
+    case STATE_IDLE:
+	switch (event->button) {
+	case 1:
+	case 3:
+	    if (!GTK_WIDGET_HAS_FOCUS(widget))
+	        gtk_widget_grab_focus(widget);
+	    knob->state   = STATE_PRESSED;
+	    knob->saved_x = event->x;
+	    knob->saved_y = event->y;
+	    break;
+	case 2:
+	    knob->adjustment->value = floor ((knob->adjustment->lower +
+					      knob->adjustment->upper + 1.0)
+					     * 0.5);
+	    g_signal_emit_by_name (knob->adjustment, "value_changed");
+	    break;
+	}
+	break;
+    }
+
+    return FALSE;
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_button_release()
+ *
+ *****************************************************************************/
+static gint
+gtk_knob_button_release(GtkWidget *widget, GdkEventButton *event) {
+    GtkKnob *knob;
+
+    g_return_val_if_fail (widget != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_KNOB (widget), FALSE);
+    g_return_val_if_fail (event != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_ADJUSTMENT (GTK_KNOB (widget)->adjustment), FALSE);
+
+    knob = GTK_KNOB (widget);
+
+    switch (knob->state) {
+
+    case STATE_PRESSED:
+	knob->state = STATE_IDLE;
+	break;
+
+    case STATE_DRAGGING:
+	knob->state = STATE_IDLE;
+
+	switch (event->button) {
+	case 1:
+	case 3:
+	    if (knob->policy != GTK_UPDATE_CONTINUOUS
+		&& knob->old_value != knob->adjustment->value)
+	    {
+		g_signal_emit_by_name (knob->adjustment, "value_changed");
+	    }
+	    break;
+	}
+
+	break;
+    }
+
+    return FALSE;
+}
+
+static gint gtk_knob_key_press(GtkWidget *widget, GdkEventKey *event)
+{
+    GtkKnob *knob;
+
+    g_return_val_if_fail (widget != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_KNOB (widget), FALSE);
+    g_return_val_if_fail (event != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_ADJUSTMENT (GTK_KNOB (widget)->adjustment), FALSE);
+
+    knob = GTK_KNOB (widget);
+
+    switch (event->keyval) {
+
+    case GDK_Up:
+        if (GTK_WIDGET_HAS_FOCUS (widget))
+        {
+            gtk_adjustment_set_value (knob->adjustment,
+                                      knob->old_value + knob->adjustment->step_increment);
+            return TRUE;
+        }
+        return FALSE;
+
+    case GDK_Down:
+        if (GTK_WIDGET_HAS_FOCUS (widget))
+        {
+            gtk_adjustment_set_value (knob->adjustment,
+                                      knob->old_value - knob->adjustment->step_increment);
+            return TRUE;
+        }
+        return FALSE;
+    default:
+        break;
+    }
+
+    return GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event);
+}
+
+/*****************************************************************************
+ *
+ * gtk_knob_motion_notify()
+ *
+ *****************************************************************************/
+static gint
+gtk_knob_motion_notify(GtkWidget *widget, GdkEventMotion *event) {
+    GtkKnob *knob;
+    GdkModifierType mods;
+    gint x, y;
+
+    g_return_val_if_fail (widget != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_KNOB (widget), FALSE);
+    g_return_val_if_fail (event != NULL, FALSE);
+
+    knob = GTK_KNOB (widget);
+
+    x = event->x;
+    y = event->y;
+
+    if (event->is_hint || (event->window != widget->window)) {
+	gdk_window_get_pointer (widget->window, &x, &y, &mods);
+    }
+
+    switch (knob->state) {
+
+    case STATE_PRESSED:
+	knob->state = STATE_DRAGGING;
+	/* fall through */
+
+    case STATE_DRAGGING:
+	if (mods & GDK_BUTTON1_MASK) {
+	    gtk_knob_update_mouse (knob, x, y, TRUE);
+	    return TRUE;
+	}
+	else if (mods & GDK_BUTTON3_MASK) {
+	    gtk_knob_update_mouse (knob, x, y, FALSE);
+	    return TRUE;
+	}
+	break;
+    }
+
+    return FALSE;
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_timer()
+ *
+ *****************************************************************************/
+static gint
+gtk_knob_timer(GtkKnob *knob) {
+
+    g_return_val_if_fail (knob != NULL, FALSE);
+    g_return_val_if_fail (GTK_IS_KNOB (knob), FALSE);
+    g_return_val_if_fail (GTK_IS_ADJUSTMENT (knob->adjustment), FALSE);
+
+    if (knob->policy == GTK_UPDATE_DELAYED) {
+	g_signal_emit_by_name (knob->adjustment, "value_changed");
+    }
+
+    /* don't keep running this timer */
+    return FALSE;
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_update_mouse_update()
+ *
+ *****************************************************************************/
+static void
+gtk_knob_update_mouse_update(GtkKnob *knob) {
+    g_return_if_fail(GTK_IS_ADJUSTMENT (knob->adjustment));
+
+    if (knob->policy == GTK_UPDATE_CONTINUOUS) {
+	g_signal_emit_by_name (knob->adjustment, "value_changed");
+    }
+    else {
+	gtk_widget_queue_draw (GTK_WIDGET (knob));
+
+	if (knob->policy == GTK_UPDATE_DELAYED) {
+	    if (knob->timer) {
+		g_source_remove (knob->timer);
+	    }
+	    knob->timer = g_timeout_add (SCROLL_DELAY_LENGTH,
+					 (GSourceFunc) gtk_knob_timer,
+					 (gpointer) knob);
+	}
+    }
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_update_mouse()
+ *
+ *****************************************************************************/
+static void
+gtk_knob_update_mouse(GtkKnob *knob, gint x, gint y, gboolean step) {
+    gfloat old_value, new_value, dv, dh;
+    gfloat angle;
+
+    g_return_if_fail (knob != NULL);
+    g_return_if_fail (GTK_IS_KNOB (knob));
+    g_return_if_fail (GTK_IS_ADJUSTMENT (knob->adjustment));
+
+    old_value = knob->adjustment->value;
+
+    angle = atan2f (-y + (knob->height >> 1), x - (knob->width >> 1));
+
+    /* inverted cartesian graphics coordinate system */
+    dv = knob->saved_y - y;
+    dh = x - knob->saved_x;
+    knob->saved_x = x;
+    knob->saved_y = y;
+
+    if ((x >= 0) && (x <= knob->width)) {
+        dh = 0;  /* dead zone */
+    } else {
+        angle = cosf (angle);
+        dh *= angle * angle;
+    }
+
+    new_value = knob->adjustment->value +
+                dv * (step ? knob->adjustment->step_increment : knob->adjustment->page_increment) +
+                dh * (knob->adjustment->upper -
+                knob->adjustment->lower) * 0.005; /* 0.005 == (1 / 200) */
+
+    new_value = MAX (MIN (new_value, knob->adjustment->upper),
+                     knob->adjustment->lower);
+
+    knob->adjustment->value = new_value;
+
+    if (knob->adjustment->value != old_value) {
+        gtk_knob_update_mouse_update (knob);
+    }
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_update()
+ *
+ *****************************************************************************/
+static void
+gtk_knob_update(GtkKnob *knob) {
+    gfloat new_value;
+
+    g_return_if_fail (knob != NULL);
+    g_return_if_fail (GTK_IS_KNOB (knob));
+    g_return_if_fail (GTK_IS_ADJUSTMENT (knob->adjustment));
+
+    if (knob->adjustment->step_increment == 1) {
+	new_value = floor (knob->adjustment->value + 0.5);
+    }
+    else {
+	new_value = knob->adjustment->value;
+    }
+
+    if (new_value < knob->adjustment->lower) {
+	new_value = knob->adjustment->lower;
+    }
+
+    if (new_value > knob->adjustment->upper) {
+	new_value = knob->adjustment->upper;
+    }
+
+    if (new_value != knob->adjustment->value) {
+	knob->adjustment->value = new_value;
+	g_signal_emit_by_name (knob->adjustment, "value_changed");
+    }
+
+    gtk_widget_queue_draw (GTK_WIDGET (knob));
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_adjustment_changed()
+ *
+ *****************************************************************************/
+static void
+gtk_knob_adjustment_changed(GtkAdjustment *adjustment, gpointer data) {
+    GtkKnob *knob;
+
+    g_return_if_fail (adjustment != NULL);
+    g_return_if_fail (data != NULL);
+
+    knob = GTK_KNOB (data);
+
+    if ((knob->old_value != adjustment->value) ||
+	(knob->old_lower != adjustment->lower) ||
+	(knob->old_upper != adjustment->upper))
+    {
+	gtk_knob_update (knob);
+
+	knob->old_value = adjustment->value;
+	knob->old_lower = adjustment->lower;
+	knob->old_upper = adjustment->upper;
+    }
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_adjustment_value_changed()
+ *
+ *****************************************************************************/
+static void
+gtk_knob_adjustment_value_changed (GtkAdjustment *adjustment, gpointer data) {
+    GtkKnob *knob;
+
+    g_return_if_fail (adjustment != NULL);
+    g_return_if_fail (data != NULL);
+
+    knob = GTK_KNOB (data);
+
+    if (knob->old_value != adjustment->value) {
+	gtk_knob_update (knob);
+	knob->old_value = adjustment->value;
+    }
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_set_animation()
+ *
+ *****************************************************************************/
+void
+gtk_knob_set_animation (GtkKnob *knob, GtkKnobAnim *anim) {
+    g_return_if_fail (knob != NULL);
+    g_return_if_fail (anim != NULL);
+    g_return_if_fail (GTK_IS_KNOB (knob));
+    g_return_if_fail (GDK_IS_PIXBUF (anim->pixbuf));
+
+    knob->anim   = (GtkKnobAnim *)anim;
+    knob->width  = anim->frame_width;
+    knob->height = anim->height;
+
+    if (GTK_WIDGET_REALIZED (knob)) {
+    	gtk_widget_queue_resize (GTK_WIDGET (knob));
+    }
+}
+
+
+/*****************************************************************************
+ *
+ * gtk_knob_animation_new_from_file()
+ *
+ *****************************************************************************/
+GtkKnobAnim *
+gtk_knob_animation_new_from_file(gchar *filename) {
+    GtkKnobAnim *anim;
+
+    anim = gtk_knob_animation_new_from_file_full (filename, -1, -1, KNOB_SIZE);
+    return anim;
+}
+
+/*****************************************************************************
+ *
+ * gtk_knob_animation_new_from_inline()
+ *
+ *****************************************************************************/
+GtkKnobAnim *
+gtk_knob_animation_new_from_inline(const guint8 *pixbuf) {
+    GtkKnobAnim *anim = g_new0 (GtkKnobAnim, 1);
+
+    g_return_val_if_fail((pixbuf != NULL), NULL);
+
+    anim->pixbuf = gdk_pixbuf_new_from_inline(-1, pixbuf, FALSE, NULL);
+    if (anim->pixbuf == NULL) {
+        g_free(anim);
+        return NULL;
+    }
+
+    anim->height      = gdk_pixbuf_get_height (anim->pixbuf);
+    anim->width       = gdk_pixbuf_get_width (anim->pixbuf);
+    anim->frame_width = anim->height;
+
+    return anim;
+}
+
+/*****************************************************************************
+ *
+ * gtk_knob_new_from_file_full()
+ *
+ * frame_width: overrides the frame width (to make rectangular frames)
+ * but doesn't affect the image size width and height cause optional
+ * scaling if not set to -1 when they are derived from the native
+ * image size.
+ *
+ * FIXME: account for any problems where (width % frame_width != 0)
+ *
+ *****************************************************************************/
+GtkKnobAnim *
+gtk_knob_animation_new_from_file_full(gchar *filename, gint frame_width,
+				      gint width, gint height) {
+    GtkKnobAnim *anim = g_new0 (GtkKnobAnim, 1);
+
+    g_return_val_if_fail ((filename != NULL), NULL);
+
+    GError *gerror = NULL;
+
+#if GTK_MINOR_VERSION < 10
+    if (!(anim->pixbuf = gdk_pixbuf_new_from_file (filename, &gerror))) {
+        g_error_free(gerror);
+        gerror = NULL;
+	return NULL;
+    }
+#else /* GTK_MINOR_VERSION >= 10 */
+    if (!(anim->pixbuf = gdk_pixbuf_new_from_file_at_size (filename, width,
+							   height, &gerror))) {
+        g_error_free(gerror);
+        gerror = NULL;
+	return NULL;
+    }
+#endif /* GTK_MINOR_VERSION < 10 */
+    else {
+	anim->height      = gdk_pixbuf_get_height (anim->pixbuf);
+	anim->width       = gdk_pixbuf_get_width (anim->pixbuf);
+	anim->frame_width = (frame_width != -1) ? frame_width : anim->height;
+    }
+
+    return anim;
+}
+
+/*****************************************************************************
+ *
+ * gtk_knob_animation_free()
+ *
+ *****************************************************************************/
+void
+gtk_knob_animation_free(GtkKnobAnim *anim) {
+    g_return_if_fail (anim != NULL);
+
+    if (anim->pixbuf)
+        g_object_unref (anim->pixbuf);
+
+    g_free (anim);
+}

gtkknob.h

@@ -0,0 +1,102 @@
+/*****************************************************************************
+ *
+ * Most of this code comes from gAlan 0.2.0, copyright (C) 1999
+ * Tony Garnock-Jones, with modifications by Sean Bolton,
+ * copyright (C) 2004, and minor modifications by William Weston,
+ * copyright (C) 2007, Tomasz Moń, copyright (C) 2009
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *****************************************************************************/
+#ifndef __GTK_KNOB_H__
+#define __GTK_KNOB_H__
+
+#include <gtk/gtk.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define GTK_KNOB(obj)		G_TYPE_CHECK_INSTANCE_CAST(obj, gtk_knob_get_type(), GtkKnob)
+#define GTK_KNOB_CLASS(klass)	G_TYPE_CHECK_CLASS_CAST(klass, gtk_knob_get_type(), GtkKnobClass)
+#define GTK_IS_KNOB(obj)	G_TYPE_CHECK_INSTANCE_TYPE(obj, gtk_knob_get_type())
+
+typedef struct _GtkKnob		GtkKnob;
+typedef struct _GtkKnobClass	GtkKnobClass;
+typedef struct _GtkKnobAnim	GtkKnobAnim;
+
+	/* better to make this an object and let widgets ref/deref it perhaps */
+    struct _GtkKnobAnim {
+	GdkPixbuf *pixbuf;
+	gint width;  /* derived from image width */
+	gint height;  /* derived from image height. */
+	gint frame_width;  /* derived from pixbuf (width / height) or provided override for rectangular frames */
+    };
+    
+    struct _GtkKnob {
+	GtkWidget widget;
+
+	/* update policy (GTK_UPDATE_[CONTINUOUS/DELAYED/DISCONTINUOUS]) */
+	guint policy : 2;
+
+	/* State of widget (to do with user interaction) */
+	guint8 state;
+	gint saved_x, saved_y;
+
+	/* ID of update timer, or 0 if none */
+	guint32 timer;
+
+	/* knob animation */
+	GtkKnobAnim *anim;
+	gint width, height;
+	
+	GdkBitmap *mask;
+	GdkGC *mask_gc;
+	GdkGC *red_gc;
+
+	/* Old values from adjustment stored so we know when something changes */
+	gfloat old_value;
+	gfloat old_lower;
+	gfloat old_upper;
+
+	/* The adjustment object that stores the data for this knob */
+	GtkAdjustment *adjustment;
+    };
+
+    struct _GtkKnobClass {
+	GtkWidgetClass parent_class;
+    };
+
+
+    extern GtkWidget *gtk_knob_new(GtkAdjustment *adjustment, GtkKnobAnim *anim);
+    extern GType gtk_knob_get_type(void);
+    extern GtkAdjustment *gtk_knob_get_adjustment(GtkKnob *knob);
+    extern void gtk_knob_set_update_policy(GtkKnob *knob, GtkUpdateType  policy);
+    extern void gtk_knob_set_adjustment(GtkKnob *knob, GtkAdjustment *adjustment);
+
+    GtkKnobAnim *gtk_knob_animation_new_from_inline(const guint8 *pixbuf);
+    GtkKnobAnim *gtk_knob_animation_new_from_file_full(gchar *filename,
+						       gint frame_width,
+						       gint width,
+						       gint height);
+
+    GtkKnobAnim *gtk_knob_animation_new_from_file(gchar *filename);
+    void gtk_knob_set_animation (GtkKnob *knob, GtkKnobAnim *anim);
+    void gtk_knob_animation_free(GtkKnobAnim *anim);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

gui.h

@@ -14,4 +14,17 @@
  *  along with this program.  If not, see <http://www.gnu.org/licenses>.
  */
 
-void create_window();
+#ifndef GDIGI_GUI_H
+#define GDIGI_GUI_H
+
+#include <glib.h>
+#include "effects.h"
+
+void show_error_message(GtkWidget *parent, gchar *message);
+void apply_setting_param_to_gui(SettingParam *param);
+gboolean apply_current_preset_to_gui(gpointer data);
+void gui_create(Device *device);
+void gui_free();
+gboolean unsupported_device_dialog(Device **device);
+
+#endif /* GDIGI_GUI_H */

preset.c

@@ -0,0 +1,261 @@
+/*
+ *  Copyright (c) 2009 Tomasz Moń <desowin@gmail.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; under version 3 of the License.
+ *
+ *  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, see <http://www.gnu.org/licenses>.
+ */
+
+#include <gio/gio.h>
+#include <expat.h>
+#include <string.h>
+#include "preset.h"
+#include "gdigi.h"
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+
+enum {
+  PARSER_TYPE_NOT_SET = -1,
+  PARSER_TYPE_PRESET_NAME = 0,
+  PARSER_TYPE_PARAM_ID,
+  PARSER_TYPE_PARAM_POSITION,
+  PARSER_TYPE_PARAM_VALUE,
+  PARSER_TYPE_PARAM_NAME,
+  PARSER_TYPE_PARAM_TEXT
+};
+
+typedef struct {
+    int depth;
+    int id;
+    Preset *preset;
+} AppData;
+
+static void XMLCALL start(void *data, const char *el, const char **attr) {
+    AppData *ad = (AppData *) data;
+
+    ad->id = PARSER_TYPE_NOT_SET;
+    if (g_strcmp0(el, "Name") == 0) {
+        if (ad->depth == 1) {
+            ad->id = PARSER_TYPE_PRESET_NAME;
+        } else if (ad->depth == 3) {
+            ad->id = PARSER_TYPE_PARAM_NAME;
+        }
+    }
+
+    if (g_strcmp0(el, "Params") == 0) {
+        if (ad->preset->params != NULL)
+            g_message("Params aleady exists!");
+    } else if (g_strcmp0(el, "Param") == 0) {
+        SettingParam *param = setting_param_new();
+        ad->preset->params = g_list_prepend(ad->preset->params, param);
+    } else if (g_strcmp0(el, "ID") == 0) {
+        ad->id = PARSER_TYPE_PARAM_ID;
+    } else if (g_strcmp0(el, "Position") == 0) {
+        ad->id = PARSER_TYPE_PARAM_POSITION;
+    } else if (g_strcmp0(el, "Value") == 0) {
+        ad->id = PARSER_TYPE_PARAM_VALUE;
+    } else if (g_strcmp0(el, "Text") == 0) {
+        ad->id = PARSER_TYPE_PARAM_TEXT;
+    }
+
+    ad->depth++;
+}
+
+static void XMLCALL end(void *data, const char *el) {
+    AppData *ad = (AppData *) data;
+    ad->depth--;
+    ad->id = PARSER_TYPE_NOT_SET;
+}
+
+static void XMLCALL text_cb(void *data, const char* text, int len)
+{
+    AppData *ad = (AppData *) data;
+
+    if ((ad == NULL) || (ad->preset == NULL))
+        return;
+
+    if (ad->id == PARSER_TYPE_PRESET_NAME) {
+        if (ad->preset->name != NULL)
+            g_free(ad->preset->name);
+        ad->preset->name = g_strndup(text, len);
+    }
+
+    if (ad->preset->params == NULL)
+        return;
+
+    SettingParam *param = (SettingParam *) ad->preset->params->data;
+    if (param == NULL)
+        return;
+
+    gchar *value = g_strndup(text, len);
+
+    switch (ad->id) {
+        case PARSER_TYPE_PARAM_ID:
+            param->id = atoi(value);
+            break;
+        case PARSER_TYPE_PARAM_POSITION:
+            param->position = atoi(value);
+            break;
+        case PARSER_TYPE_PARAM_VALUE:
+            param->value = atoi(value);
+            break;
+    }
+
+    g_free(value);
+}
+
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */
+
+/**
+ *  \param filename valid path to file
+ *  \param error return location for an error
+ *
+ *  Tries to open file pointed by path, then parses it.
+ *
+ *  \return Preset which must be freed using preset_free, or NULL on error.
+ **/
+Preset *create_preset_from_xml_file(gchar *filename, GError **error)
+{
+    GFile *file;
+    GError *err = NULL;
+    gchar *contents;
+
+    file = g_file_new_for_path(filename);
+    if (g_file_get_contents(filename, &contents, NULL, &err) == FALSE) {
+        g_message("Failed to get %s contents: %s", filename, err->message);
+        *error = g_error_copy(err);
+        g_error_free(err);
+        g_object_unref(file);
+        return NULL;
+    }
+
+    AppData *ad = g_slice_new(AppData);
+    ad->depth = 0;
+    ad->preset = g_slice_new(Preset);
+    ad->preset->name = NULL;
+    ad->preset->params = NULL;
+    ad->id = PARSER_TYPE_NOT_SET;
+
+    XML_Parser p;
+    p = XML_ParserCreate(NULL);
+    XML_SetUserData(p, (void *) ad);
+    XML_SetElementHandler(p, start, end);
+    XML_SetCharacterDataHandler(p, text_cb);
+
+    if (XML_Parse(p, contents, strlen(contents), XML_TRUE) != XML_STATUS_OK) {
+        g_set_error(error, 0, 0, "Parse error at line %d:\n%s",
+                    (int)XML_GetCurrentLineNumber(p),
+                    XML_ErrorString(XML_GetErrorCode(p)));
+        preset_free(ad->preset);
+        g_slice_free(AppData, ad);
+        g_free(contents);
+        g_object_unref(file);
+        return NULL;
+    }
+
+    Preset *preset = ad->preset;
+    preset->params = g_list_reverse(preset->params);
+
+    XML_ParserFree(p);
+    g_slice_free(AppData, ad);
+
+    g_free(contents);
+    g_object_unref(file);
+    return preset;
+}
+
+/**
+ *  \param list list containing unpacked preset SysEx messages.
+ *
+ *  Parses message
+ *
+ *  \return Preset which must be freed using preset_free, or NULL on error.
+ **/
+Preset *create_preset_from_data(GList *list)
+{
+    GString *data;
+    GList *iter;
+    gint total, n, x;
+    gint bank, number, modified;
+    gchar *name;
+
+    g_return_val_if_fail(list != NULL, NULL);
+
+    Preset *preset = g_slice_new(Preset);
+    preset->name = NULL;
+    preset->params = NULL;
+
+    iter = list;
+    for (iter = list; iter; iter = g_list_next(iter)) {
+        data = (GString*) iter->data;
+        switch (get_message_id(data)) {
+            case RECEIVE_PRESET_START:
+                bank = (unsigned char)data->str[8];
+                number = (unsigned char)data->str[9];
+                name = g_strdup(&data->str[10]);
+                modified = (unsigned char)data->str[11+strlen(name)];
+
+                if ((bank == PRESETS_EDIT_BUFFER) && (number == 0)) {
+                    g_message("Received current edit buffer");
+                } else {
+                    g_message("Received preset %d from bank %d", number, bank);
+                }
+
+                g_message("Modified flag: %d Name: %s", modified, name);
+                preset->name = name;
+                break;
+            case RECEIVE_PRESET_PARAMETERS:
+                x = 0x09;
+                n = 0;
+                total = (unsigned char)data->str[x];
+                x++;
+
+                do {
+                    SettingParam *param = setting_param_new_from_data(&data->str[x], &x);
+                    n++;
+                    preset->params = g_list_prepend(preset->params, param);
+                    g_message("%d ID %d Position %d Value %d", n, param->id, param->position, param->value);
+                } while ((x < data->len) && n<total);
+                g_message("TOTAL %d", total);
+                preset->params = g_list_reverse(preset->params);
+                break;
+            case RECEIVE_PRESET_END:
+                break;
+            default:
+                g_message("Unhandled message in preset messages list");
+        }
+    }
+
+    return preset;
+}
+
+/**
+ *  \param preset preset to be freed
+ *
+ *  Frees all memory used by preset.
+ **/
+void preset_free(Preset *preset)
+{
+    g_return_if_fail(preset != NULL);
+
+    if (preset->params != NULL) {
+        GList *iter;
+        for (iter = preset->params; iter; iter = iter->next) {
+            setting_param_free((SettingParam*)iter->data);
+        }
+        g_list_free(preset->params);
+    }
+
+    if (preset->name != NULL)
+        g_free(preset->name);
+
+    g_slice_free(Preset, preset);
+}

preset.h

@@ -14,16 +14,18 @@
  *  along with this program.  If not, see <http://www.gnu.org/licenses>.
  */
 
-#include "gdigi.h"
+#ifndef GDIGI_PRESET_H
+#define GDIGI_PRESET_H
 
-void test_wah();
+#include <glib.h>
-void test_compressor();
+
-void test_dist();
+typedef struct {
-void test_presets();
+    gchar *name;
-void test_pickups();
+    GList *params;
-void test_eq();
+} Preset;
-void test_noisegate();
+
-void test_chorusfx();
+Preset *create_preset_from_xml_file(gchar *filename, GError **error);
-void test_delay();
+Preset *create_preset_from_data(GList *list);
-void test_reverb();
+void preset_free(Preset *preset);
-void test_all();
+
+#endif /* GDIGI_PRESET_H */

tests.c

@@ -1,635 +0,0 @@
-/*
- *  Copyright (c) 2009 Tomasz Moń <desowin@gmail.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; under version 3 of the License.
- *
- *  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, see <http://www.gnu.org/licenses>.
- */
-
-#include "gdigi.h"
-
-void test_wah()
-{
-    int x;
-
-    set_wah_type(WAH_TYPE_CRY);
-    for (x=0; x<=99; x++)
-        set_wah_min(x);
-
-    for (x=0; x<=99; x++)
-        set_wah_max(x);
-
-    for (x=0; x<=12; x++)
-        set_wah_level(x);
-
-    set_wah_type(WAH_TYPE_FULLRANGE);
-    for (x=0; x<=99; x++)
-        set_wah_min(x);
-
-    for (x=0; x<=99; x++)
-        set_wah_max(x);
-
-    for (x=0; x<=12; x++)
-        set_wah_level(x);
-
-    set_wah_type(WAH_TYPE_CLYDE);
-    for (x=0; x<=99; x++)
-        set_wah_min(x);
-
-    for (x=0; x<=99; x++)
-        set_wah_max(x);
-
-    for (x=0; x<=12; x++)
-        set_wah_level(x);
-
-    set_wah_on_off(TRUE);
-    set_wah_on_off(FALSE);
-}
-
-void test_compressor()
-{
-    int x;
-
-    set_comp_type(COMP_TYPE_DIGI);
-    for (x=0; x<=99; x++)
-        set_comp_sustain(x);
-
-    for (x=0; x<=99; x++)
-        set_comp_tone(x);
-
-    for (x=0; x<=99; x++)
-        set_comp_attack(x);
-
-    for (x=0; x<=99; x++)
-        set_comp_level(x);
-
-    set_comp_type(COMP_TYPE_CS);
-    for (x=0; x<=99; x++)
-        set_comp_sustain(x);
-
-    for (x=0; x<=99; x++)
-        set_comp_attack(x);
-
-    for (x=0; x<=99; x++)
-        set_comp_level(x);
-
-    set_comp_on_off(TRUE);
-    set_comp_on_off(FALSE);
-}
-
-void test_dist()
-{
-    int x;
-
-    set_dist_type(DIST_TYPE_SCREAMER);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_SCREAMER_DRIVE, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_SCREAMER_TONE, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_SCREAMER_LVL, x);
-
-    set_dist_type(DIST_TYPE_808);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_808_OVERDRIVE, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_808_TONE, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_808_LVL, x);
-
-    set_dist_type(DIST_TYPE_GUYOD);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_GUYOD_DRIVE, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_GUYOD_LVL, x);
-
-    set_dist_type(DIST_TYPE_DOD250);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_DOD250_GAIN, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_DOD250_LVL, x);
-
-    set_dist_type(DIST_TYPE_RODENT);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_RODENT_DIST, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_RODENT_FILTER, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_RODENT_LVL, x);
-
-    set_dist_type(DIST_TYPE_MX);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_MX_DIST, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_MX_OUTPUT, x);
-
-    set_dist_type(DIST_TYPE_DS);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_DS_GAIN, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_DS_TONE, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_DS_LVL, x);
-
-    set_dist_type(DIST_TYPE_GRUNGE);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_GRUNGE_GRUNGE, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_GRUNGE_FACE, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_GRUNGE_LOUD, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_GRUNGE_BUTT, x);
-
-    set_dist_type(DIST_TYPE_ZONE);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_ZONE_GAIN, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_ZONE_LOW, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_ZONE_MID_LVL, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_ZONE_MID_FREQ, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_ZONE_HIGH, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_ZONE_LEVEL, x);
-
-    set_dist_type(DIST_TYPE_DEATH);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_DEATH_LOW, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_DEATH_MID, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_DEATH_HIGH, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_DEATH_LVL, x);
-
-    set_dist_type(DIST_TYPE_GONK);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_GONK_GONK, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_GONK_SMEAR, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_GONK_SUCK, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_GONK_HEAVE, x);
-
-    set_dist_type(DIST_TYPE_FUZZY);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_FUZZY_FUZZ, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_FUZZY_VOLUME, x);
-
-    set_dist_type(DIST_TYPE_MP);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_MP_SUSTAIN, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_MP_TONE, x);
-    for (x=0; x<=99; x++)
-        set_dist_option(DIST_MP_VOLUME, x);
-
-    set_dist_on_off(TRUE);
-    set_dist_on_off(FALSE);
-}
-
-void test_presets()
-{
-    int x;
-
-    for (x=0; x<=60; x++)
-        switch_user_preset(x);
-
-    for (x=0; x<=60; x++)
-        switch_system_preset(x);
-
-    for (x=0; x<=99; x++)
-        set_preset_level(x);
-}
-
-void test_pickups()
-{
-    set_pickup_type(PICKUP_TYPE_HB_SC);
-    set_pickup_type(PICKUP_TYPE_SC_HB);
-
-    set_pickup_on_off(TRUE);
-    set_pickup_on_off(FALSE);
-}
-
-void test_eq()
-{
-    int x;
-
-    set_eq_type(EQ_TYPE_BRIGHT);
-    set_eq_type(EQ_TYPE_MIDBOOST);
-    set_eq_type(EQ_TYPE_SCOOP);
-    set_eq_type(EQ_TYPE_WARM);
-
-    for (x=0; x<=99; x++)
-        set_eq_gain(x);
-    for (x=0; x<=99; x++)
-        set_eq_level(x);
-
-    for (x=0; x<=0x18; x++)
-        set_eq_bass(x);
-    for (x=0; x<=0x18; x++)
-        set_eq_mid(x);
-    for (x=0; x<=4700; x++)
-        set_eq_mid_hz(x);
-    for (x=0; x<=0x18; x++)
-        set_eq_treble(x);
-    for (x=0; x<=7500; x++)
-        set_eq_treb_hz(x);
-
-    set_eq_on_off(TRUE);
-    set_eq_on_off(FALSE);
-}
-
-void test_noisegate()
-{
-    int x;
-
-    set_noisegate_type(NOISEGATE_GATE);
-    for (x=0; x<=99; x++)
-        set_gate_option(NOISEGATE_GATE_TRESHOLD, x);
-    for (x=0; x<=99; x++)
-        set_gate_option(NOISEGATE_ATTACK, x);
-    for (x=0; x<=99; x++)
-        set_gate_option(NOISEGATE_RELEASE, x);
-    for (x=0; x<=99; x++)
-        set_gate_option(NOISEGATE_ATTN, x);
-
-    set_noisegate_type(NOISEGATE_SWELL);
-    for (x=0; x<=99; x++)
-        set_gate_option(NOISEGATE_SWELL_SENS, x);
-    for (x=0; x<=99; x++)
-        set_gate_option(NOISEGATE_ATTACK, x);
-    for (x=0; x<=99; x++)
-        set_gate_option(NOISEGATE_RELEASE, x);
-    for (x=0; x<=99; x++)
-        set_gate_option(NOISEGATE_ATTN, x);
-
-    set_noisegate_on_off(TRUE);
-    set_noisegate_on_off(FALSE);
-}
-
-void test_chorusfx()
-{
-    int x;
-
-    set_chorusfx_type(CHORUS_TYPE_CE);
-    for (x=0; x<=99; x++)
-        set_chorusfx_option(CE_CHORUS_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_chorusfx_option(CE_CHORUS_DEPTH, x);
-
-    set_chorusfx_type(CHORUS_TYPE_DUAL);
-    for (x=0; x<=99; x++)
-        set_chorusfx_option(DUAL_CHORUS_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_chorusfx_option(DUAL_CHORUS_DEPTH, x);
-    for (x=0; x<=99; x++)
-        set_chorusfx_option(DUAL_CHORUS_LEVEL, x);
-    set_chorusfx_option(DUAL_CHORUS_WAVE, WAVE_TRI);
-    set_chorusfx_option(DUAL_CHORUS_WAVE, WAVE_SINE);
-    set_chorusfx_option(DUAL_CHORUS_WAVE, WAVE_SQUARE);
-
-    set_chorusfx_type(CHORUS_TYPE_MULTI);
-    for (x=0; x<=99; x++)
-        set_chorusfx_option(MULTI_CHORUS_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_chorusfx_option(MULTI_CHORUS_DEPTH, x);
-    for (x=0; x<=99; x++)
-        set_chorusfx_option(MULTI_CHORUS_LEVEL, x);
-    set_chorusfx_option(MULTI_CHORUS_WAVE, WAVE_TRI);
-    set_chorusfx_option(MULTI_CHORUS_WAVE, WAVE_SINE);
-    set_chorusfx_option(MULTI_CHORUS_WAVE, WAVE_SQUARE);
-
-    set_chorusfx_type(CHORUS_TYPE_FLANGER);
-    for (x=0; x<=99; x++)
-        set_flanger_option(FLANGER_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_flanger_option(FLANGER_DEPTH, x);
-    for (x=0; x<=99; x++)
-        set_flanger_option(FLANGER_REGEN, x);
-    for (x=0; x<=99; x++)
-        set_flanger_option(FLANGER_LEVEL, x);
-    set_flanger_option(FLANGER_WAVE, WAVE_TRI);
-    set_flanger_option(FLANGER_WAVE, WAVE_SINE);
-    set_flanger_option(FLANGER_WAVE, WAVE_SQUARE);
-
-    set_chorusfx_type(CHORUS_TYPE_MXR_FLANGER);
-    for (x=0; x<=99; x++)
-        set_flanger_option(MXR_FLANGER_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_flanger_option(MXR_FLANGER_WIDTH, x);
-    for (x=0; x<=99; x++)
-        set_flanger_option(MXR_FLANGER_REGEN, x);
-    for (x=0; x<=99; x++)
-        set_flanger_option(MXR_FLANGER_MANUAL, x);
-
-    set_chorusfx_type(CHORUS_TYPE_PHASER);
-    for (x=0; x<=99; x++)
-        set_flanger_option(PHASER_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_flanger_option(PHASER_DEPTH, x);
-    for (x=0; x<=99; x++)
-        set_flanger_option(PHASER_REGEN, x);
-    for (x=0; x<=99; x++)
-        set_flanger_option(PHASER_LEVEL, x);
-    set_flanger_option(PHASER_WAVE, WAVE_TRI);
-    set_flanger_option(PHASER_WAVE, WAVE_SINE);
-    set_flanger_option(PHASER_WAVE, WAVE_SQUARE);
-
-    set_chorusfx_type(CHORUS_TYPE_VIBRATO);
-    for (x=0; x<=99; x++)
-        set_vibrato_option(VIBRATO_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_vibrato_option(VIBRATO_DEPTH, x);
-
-    set_chorusfx_type(CHORUS_TYPE_ROTARY);
-    for (x=0; x<=99; x++)
-        set_vibrato_option(ROTARY_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_vibrato_option(ROTARY_INTENSITY, x);
-    for (x=0; x<=99; x++)
-        set_vibrato_option(ROTARY_DOPPLER, x);
-    for (x=0; x<=99; x++)
-        set_vibrato_option(ROTARY_CROSSOVER, x);
-
-    set_chorusfx_type(CHORUS_TYPE_VIBROPAN);
-    for (x=0; x<=99; x++)
-        set_vibrato_option(VIBROPAN_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_vibrato_option(VIBROPAN_DEPTH, x);
-    for (x=0; x<=99; x++)
-        set_vibrato_option(VIBROPAN_VIBRA, x);
-    set_vibrato_option(VIBROPAN_WAVE, WAVE_TRI);
-    set_vibrato_option(VIBROPAN_WAVE, WAVE_SINE);
-    set_vibrato_option(VIBROPAN_WAVE, WAVE_SQUARE);
-
-    set_chorusfx_type(CHORUS_TYPE_TREMOLO);
-    for (x=0; x<=99; x++)
-        set_tremolo_option(TREMOLO_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_tremolo_option(TREMOLO_DEPTH, x);
-    set_tremolo_option(TREMOLO_WAVE, WAVE_TRI);
-    set_tremolo_option(TREMOLO_WAVE, WAVE_SINE);
-    set_tremolo_option(TREMOLO_WAVE, WAVE_SQUARE);
-
-    set_chorusfx_type(CHORUS_TYPE_PANNER);
-    for (x=0; x<=99; x++)
-        set_tremolo_option(PANNER_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_tremolo_option(PANNER_DEPTH, x);
-    set_tremolo_option(PANNER_WAVE, WAVE_TRI);
-    set_tremolo_option(PANNER_WAVE, WAVE_SINE);
-    set_tremolo_option(PANNER_WAVE, WAVE_SQUARE);
-
-    set_chorusfx_type(CHORUS_TYPE_ENVELOPE);
-    for (x=0; x<=99; x++)
-        set_envelope_option(ENVELOPE_SENSITIVITY, x);
-    for (x=0; x<=99; x++)
-        set_envelope_option(ENVELOPE_RANGE, x);
-
-    set_chorusfx_type(CHORUS_TYPE_AUTOYA);
-    for (x=0; x<=99; x++)
-        set_ya_option(AUTOYA_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_ya_option(AUTOYA_INTENSITY, x);
-    for (x=0; x<=0x31; x++)
-        set_ya_option(AUTOYA_RANGE, x);
-
-    set_chorusfx_type(CHORUS_TYPE_YAYA);
-    for (x=0; x<=99; x++)
-        set_ya_option(YAYA_PEDAL, x);
-    for (x=0; x<=99; x++)
-        set_ya_option(YAYA_INTENSITY, x);
-    for (x=0; x<=0x31; x++)
-        set_ya_option(YAYA_RANGE, x);
-
-    set_chorusfx_type(CHORUS_TYPE_STEP_FILTER);
-    for (x=0; x<=99; x++)
-        set_filter_option(STEP_FILTER_SPEED, x);
-    for (x=0; x<=99; x++)
-        set_filter_option(STEP_FILTER_INTENSITY, x);
-
-    set_chorusfx_type(CHORUS_TYPE_WHAMMY);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_OCT_UP);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_2OCT_UP);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_2ND_DN);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_RV_2ND);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_4TH_DN);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_OCT_DN);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_2OCT_DN);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_DIV_BMB);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_M3_MA);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_2ND_MA3);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_3RD_4TH);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_4TH_5TH);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_5TH_OCT);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_HOCT_UP);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_HOCT_DN);
-    set_whammy_option(WHAMMY_AMOUNT, WHAMMY_OCT_UD);
-    for (x=0; x<=99; x++)
-        set_whammy_option(WHAMMY_PEDAL, x);
-    for (x=0; x<=99; x++)
-        set_whammy_option(WHAMMY_MIX, x);
-
-    set_chorusfx_type(CHORUS_TYPE_PITCH_SHIFT);
-    for (x=0; x<=0x30; x++)
-        set_pitch_option(PITCH_AMOUNT, x);
-    for (x=0; x<=99; x++)
-        set_pitch_option(PITCH_MIX, x);
-
-    set_chorusfx_type(CHORUS_TYPE_DETUNE);
-    for (x=0; x<=0x30; x++)
-        set_pitch_option(DETUNE_AMOUNT, x);
-    for (x=0; x<=99; x++)
-        set_pitch_option(DETUNE_LEVEL, x);
-
-    set_chorusfx_type(CHORUS_TYPE_IPS);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_OCT_D);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_7TH_DN);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_6TH_DN);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_5TH_DN);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_4TH_DN);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_3RD_DN);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_2ND_DN);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_2ND_UP);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_3RD_UP);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_4TH_UP);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_5TH_UP);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_6TH_UP);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_7TH_UP);
-    set_ips_option(IPS_SHIFT_AMOUNT, IPS_OCT_U);
-    set_ips_option(IPS_KEY, IPS_E);
-    set_ips_option(IPS_KEY, IPS_F);
-    set_ips_option(IPS_KEY, IPS_GB);
-    set_ips_option(IPS_KEY, IPS_G);
-    set_ips_option(IPS_KEY, IPS_AB);
-    set_ips_option(IPS_KEY, IPS_A);
-    set_ips_option(IPS_KEY, IPS_BB);
-    set_ips_option(IPS_KEY, IPS_B);
-    set_ips_option(IPS_KEY, IPS_C);
-    set_ips_option(IPS_KEY, IPS_DD);
-    set_ips_option(IPS_KEY, IPS_D);
-    set_ips_option(IPS_KEY, IPS_EB);
-    set_ips_option(IPS_SCALE, IPS_MAJOR);
-    set_ips_option(IPS_SCALE, IPS_MINOR);
-    set_ips_option(IPS_SCALE, IPS_DORIA);
-    set_ips_option(IPS_SCALE, IPS_MIXLYD);
-    set_ips_option(IPS_SCALE, IPS_LYDIAN);
-    set_ips_option(IPS_SCALE, IPS_HMINO);
-    for (x=0; x<=99; x++)
-        set_ips_option(IPS_LEVEL, x);
-
-    set_chorusfx_on_off(TRUE);
-    set_chorusfx_on_off(FALSE);
-}
-
-void test_delay()
-{
-    int x;
-
-    set_delay_type(DELAY_TYPE_ANALOG);
-    for (x=0; x<=139; x++)
-        set_delay_time(x);
-    for (x=0; x<=99; x++)
-        set_delay_option(ANALOG_LEVEL, x);
-    for (x=0; x<=100; x++)
-        set_delay_option(ANALOG_REPEATS, x);
-
-    set_delay_type(DELAY_TYPE_DIGITAL);
-    for (x=0; x<=139; x++)
-        set_delay_time(x);
-    for (x=0; x<=99; x++)
-        set_delay_option(DIGITAL_LEVEL, x);
-    for (x=0; x<=100; x++)
-        set_delay_option(DIGITAL_REPEATS, x);
-    for (x=0; x<=99; x++)
-        set_delay_option(DIGITAL_DUCKER_THRESH, x);
-    for (x=0; x<=99; x++)
-        set_delay_option(DIGITAL_DUCKER_LEVEL, x);
-
-    set_delay_type(DELAY_TYPE_MODULATED);
-    for (x=0; x<=139; x++)
-        set_delay_time(x);
-    for (x=0; x<=99; x++)
-        set_delay_option(MODULATED_LEVEL, x);
-    for (x=0; x<=100; x++)
-        set_delay_option(MODULATED_REPEATS, x);
-    for (x=0; x<=99; x++)
-        set_delay_option(MODULATED_DEPTH, x);
-
-    set_delay_type(DELAY_TYPE_PONG);
-    for (x=0; x<=139; x++)
-        set_delay_time(x);
-    for (x=0; x<=99; x++)
-        set_delay_option(PONG_LEVEL, x);
-    for (x=0; x<=100; x++)
-        set_delay_option(PONG_REPEATS, x);
-    for (x=0; x<=99; x++)
-        set_delay_option(PONG_DUCKER_THRESH, x);
-    for (x=0; x<=99; x++)
-        set_delay_option(PONG_DUCKER_LEVEL, x);
-
-    set_delay_type(DELAY_TYPE_TAPE);
-    for (x=0; x<=139; x++)
-        set_delay_time(x);
-    for (x=0; x<=99; x++)
-        set_delay_option(TAPE_LEVEL, x);
-    for (x=0; x<=100; x++)
-        set_delay_option(TAPE_REPEATS, x);
-    for (x=0; x<=99; x++)
-        set_delay_option(TAPE_WOW, x);
-    for (x=0; x<=99; x++)
-        set_delay_option(TAPE_FLUTTER, x);
-
-    set_delay_on_off(TRUE);
-    set_delay_on_off(FALSE);
-}
-
-void test_reverb()
-{
-    int x;
-
-    set_reverb_type(REVERB_TYPE_TWIN);
-    for (x=0; x<=99; x++)
-        set_reverb_option(TWIN_REVERB, x);
-
-    set_reverb_type(REVERB_TYPE_LEX_AMBIENCE);
-    for (x=0; x<=15; x++)
-        set_reverb_option(LEX_AMBIENCE_PREDELAY, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_AMBIENCE_DECAY, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_AMBIENCE_LIVELINESS, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_AMBIENCE_LEVEL, x);
-
-    set_reverb_type(REVERB_TYPE_LEX_STUDIO);
-    for (x=0; x<=15; x++)
-        set_reverb_option(LEX_STUDIO_PREDELAY, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_STUDIO_DECAY, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_STUDIO_LIVELINESS, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_STUDIO_LEVEL, x);
-
-    set_reverb_type(REVERB_TYPE_LEX_ROOM);
-    for (x=0; x<=15; x++)
-        set_reverb_option(LEX_ROOM_PREDELAY, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_ROOM_DECAY, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_ROOM_LIVELINESS, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_ROOM_LEVEL, x);
-
-    set_reverb_type(REVERB_TYPE_LEX_HALL);
-    for (x=0; x<=15; x++)
-        set_reverb_option(LEX_HALL_PREDELAY, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_HALL_DECAY, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_HALL_LIVELINESS, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(LEX_HALL_LEVEL, x);
-
-    set_reverb_type(REVERB_TYPE_EMT240_PLATE);
-    for (x=0; x<=15; x++)
-        set_reverb_option(EMT240_PLATE_PREDELAY, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(EMT240_PLATE_DECAY, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(EMT240_PLATE_LIVELINESS, x);
-    for (x=0; x<=99; x++)
-        set_reverb_option(EMT240_PLATE_LEVEL, x);
-
-    set_reverb_on_off(TRUE);
-    set_reverb_on_off(FALSE);
-}
-
-void test_all()
-{
-    test_wah();
-    test_compressor();
-    test_dist();
-    test_presets();
-    test_pickups();
-    test_eq();
-    test_noisegate();
-    test_chorusfx();
-    test_delay();
-    test_reverb();
-}