Merge pull request #10 from acspike/master

additional modifiers for rp1000

.gitignore

@@ -0,0 +1,9 @@
+*.[om]
+*.rp355p
+cscope.*
+tags
+gdigi
+*.orig
+*.swp
+images/gdigi_icon.h
+core

AUTHORS

@@ -1 +1,12 @@
 Tomasz Moń <desowin@gmail.com>
+Stephen Rigler <riglersc@gmail.com>
+Jaco Kroon <jaco@kroon.co.za>
+Rafael Moreno <laocanfei@yahoo.com>
+Andrew Shadura <bugzilla@tut.by>
+Andreas Karajannis <aakara13@googlemail.com>
+Miklos Aubert <miklos.aubert@gmail.com>
+Jonathan A. Tice <jonandtice@gmail.com>
+John Hammen <jhammen@gmail.com>
+Ahmed Toulan <thelinuxer@gmail.com>
+Tim LaBerge <tlaberge@visi.com>
+Mauro Carvalho Chehab <maurochehab@gmail.com>

HACKING

@@ -10,36 +10,50 @@ There seems to be three possible ways to figure that out.
    (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:
+   MIDI data is transferred over USB using 32-bit USB-MIDI Event Packets.
+   Byte 0 is Cable Number (high nibble) and Code Index Number (low nibble).
+   Bytes 1, 2 and 3 are data.
+   Every bulk transfer on USB MIDI endpoint contains atleast one such packet
+   (those are sent one after each other).
+   In case of Digitech devices, the Cable Number seems to be 0 (correct me,
+   if I'm wrong).
+   There are three different Code Index Numbers that are being used in this
+   particular case:
+   0x4 - SysEx starts or continues (Byte 1, 2 and 3 from this packet are
+         part of our MIDI message)
+   0x5 - SysEx ends with following single byte (we just need to take Byte 1
+         from this packet)
+   0x6 - SysEx ends with following two bytes (we just need to take Byte 1 and 2
+         from this packet)
+   0x7 - SysEx ends with following three bytes (we need to take Byte 1, 2 and 3
+         from this packet)
+
+   Unused bytes in USB-MIDI packets are supposed to be 0.
+
+   To get SysEx command out of it, apply above rules, 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
+   SysEx start byte - F0
+   Manufacturer ID - 00 00 10
+   Device ID - 00
+   Family ID - 5E (RP)
+   Product ID - 02 (RP250)
+   Procedure - 41 (see MessageID in gdigi.h) 
+
+   As MIDI messages must not contain bytes with MSB bit set, Digitech
+   devices use packing system.
+   First byte contains MSB bits from following 7 bytes (this scheme
+   continues as many times as needed) (see pack_data() and unpack_message() in
+   gdigi.c for details).
+
+   Assuming message has been unpacked, the meaning of next bytes:
    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
+   Checksum - to calculate it, XOR all bytes (of packed message)
    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

Makefile

@@ -1,10 +1,10 @@
 CC = gcc
 EXTRA_CFLAGS ?=
 EXTRA_LDFLAGS ?=
-CFLAGS := $(shell pkg-config --cflags glib-2.0 gio-2.0 gtk+-2.0) -Wall -g -ansi -std=c99 $(EXTRA_CFLAGS)
+CFLAGS := $(shell pkg-config --cflags glib-2.0 gio-2.0 gtk+-3.0 libxml-2.0) -Wall -g -ansi -std=c99 $(EXTRA_CFLAGS)
 LDFLAGS = $(EXTRA_LDFLAGS) -Wl,--as-needed
-LDADD := $(shell pkg-config --libs glib-2.0 gio-2.0 gtk+-2.0 gthread-2.0 alsa) -lexpat 
-OBJECTS = gdigi.o gui.o effects.o preset.o gtkknob.o
+LDADD := $(shell pkg-config --libs glib-2.0 gio-2.0 gtk+-3.0 gthread-2.0 alsa libxml-2.0) -lexpat -lm
+OBJECTS = gdigi.o gui.o effects.o preset.o gtkknob.o preset_xml.o
 DEPFILES = $(foreach m,$(OBJECTS:.o=),.$(m).m)
 
 .PHONY : clean distclean all
@@ -19,19 +19,21 @@ all: gdigi
 gdigi: $(OBJECTS) 
 	$(CC) $(LDFLAGS) -o $@ $+ $(LDADD)
 
-knob.h: knob.png
-	gdk-pixbuf-csource --name=knob_pixbuf knob.png > $@
+images/gdigi_icon.h: images/icon.png
+	gdk-pixbuf-csource --raw --name=gdigi_icon $< > $@
 
 clean:
 	rm -f *.o
-	rm -f knob.h
 
 distclean : clean
 	rm -f .*.m
+	rm -f images/gdigi_icon.h
 	rm -f gdigi
 
 install: gdigi
 	install gdigi $(DESTDIR)/usr/bin
+	install -m 0644 gdigi.desktop $(DESTDIR)/usr/share/applications/
+	install -m 0644 images/gdigi.png $(DESTDIR)/usr/share/icons/
 
 NODEP_TARGETS := clean distclean
 depinc := 1

README

@@ -1,4 +1,4 @@
-Requirments: alsa, gtk+, glib, expat
+Requirments: alsa, gtk+, glib, expat, libxml-2
 
 Getting started guide:
 -to compile: make

TODO

@@ -2,5 +2,4 @@
 -handling presets (saving, exporting to xml patches)
 -buildsystem (install knob.png to share dir, don't use inline knob pixbuf)
 -various fixes to MIDI IN messages handling
--guess device port when user doesn't explicitly provide it (don't use hardcoded "hw:1,0,0")
 -optimizations

effects.h

@@ -19,7 +19,7 @@
 
 #include <glib.h>
 
-enum {
+typedef enum {
   VALUE_TYPE_PLAIN  = 0,      /**< value displayed directly */
   VALUE_TYPE_SUFFIX = 1 << 0, /**< use suffix for displaying */
   VALUE_TYPE_OFFSET = 1 << 1, /**< use value offset */
@@ -27,6 +27,8 @@ enum {
   VALUE_TYPE_LABEL  = 1 << 3, /**< use value labels (overrides any other option) */
   VALUE_TYPE_EXTRA  = 1 << 4, /**< use extra values */
   VALUE_TYPE_DECIMAL= 1 << 5, /**< display decimal places */
+  VALUE_TYPE_POSID  = 1 << 6, /**< Packed Position/ID: (pos << 16) | id */
+  VALUE_TYPE_NONE   = 1 << 7, /**< no value displayed */
 } ValueType;
 
 typedef struct _EffectValues {
@@ -93,6 +95,18 @@ typedef struct {
     PresetBank bank;
 } Banks;
 
+enum product_id {
+   RP150    = 1,
+   RP250    = 2,
+   GNX4     = 3,
+   GNX3000  = 4,
+   RP500    = 5,
+   RP1000   = 6,
+   RP155    = 7,
+   RP255    = 8,
+   RP355    = 9,
+};
+
 typedef struct {
     gchar *name;
     unsigned char family_id;
@@ -103,12 +117,16 @@ typedef struct {
     gint n_banks;
 } Device;
 
-ModifierGroup *modifier_linkable_list();
-void modifier_group_free(ModifierGroup *modifier_group);
+gchar *get_position(guint position);
+void update_modifier_linkable_list(GString* msg);
+extern ModifierGroup *ModifierLinkableList;
+EffectGroup *get_modifier_group(void);
+guint get_modifier_amt(void);
 void get_values_info(EffectValues *values,
                      gdouble *min, gdouble *max, gboolean *custom);
 gboolean get_device_info(unsigned char device_id, unsigned char family_id,
                          unsigned char product_id,
                          Device **device);
 
+
 #endif /* GDIGI_EFFECTS_H */

gdigi.c

@@ -21,20 +21,188 @@
 #include <alsa/asoundlib.h>
 #include <alloca.h>
 #include "gdigi.h"
+#include "gdigi_xml.h"
 #include "gui.h"
 
 static unsigned char device_id = 0x7F;
 static unsigned char family_id = 0x7F;
-static unsigned char product_id = 0x7F;
+unsigned char product_id = 0x7F;
 
 static snd_rawmidi_t *output = NULL;
 static snd_rawmidi_t *input = NULL;
-static char *device_port = "hw:1,0,0";
+static char *device_port = NULL;
 
 static GQueue *message_queue = NULL;
 static GMutex *message_queue_mutex = NULL;
 static GCond *message_queue_cond = NULL;
 
+static guint DebugFlags;
+
+gboolean
+debug_flag_is_set (debug_flags_t flags)
+{
+    if (DebugFlags & flags) {
+        return TRUE;
+    }
+    return FALSE;
+}
+
+gboolean set_debug_flags (const gchar *option_name, const gchar *value,
+                          gpointer data, GError **error)
+{
+    if (strchr(value, 'd')) {
+        DebugFlags |= DEBUG_MSG2DEV;
+    }
+    if (strchr(value, 'h')) {
+        DebugFlags |= DEBUG_MSG2HOST;
+    }
+    if (strchr(value, 'm')) {
+        DebugFlags |= DEBUG_MSG2DEV|DEBUG_MSG2HOST|DEBUG_GROUP;
+    }
+    if (strchr(value, 's')) {
+        DebugFlags |= DEBUG_STARTUP;
+    }
+    if (strchr(value, 'H')) {
+        DebugFlags |= DEBUG_HEX;
+    }
+    if (strchr(value, 'g')) {
+        DebugFlags |= DEBUG_GROUP;
+    }
+    if (strchr(value, 'x')) {
+        DebugFlags |= DEBUG_XML;
+    }
+    if (strchr(value, 'v')) {
+        DebugFlags |= DEBUG_VERBOSE;
+    }
+    if (strchr(value, 'a')) {
+        DebugFlags = -1;
+    }
+
+    return TRUE;
+}
+
+void
+debug_msg (debug_flags_t flags, char *fmt, ...)
+{
+    char buf[1024];
+    if (flags & DebugFlags) {
+        va_list ap;
+
+        va_start(ap, fmt);
+        vsnprintf(buf, 1024, fmt, ap);
+        va_end(ap);
+
+        fprintf(stderr, "%s\n", buf);
+    }
+}
+
+/*
+ * Format a value according to the xml setting.
+ * Returns an allocated buffer that must be freed by the caller.
+ */
+GString *
+format_value (XmlSettings *xml, guint value)
+{
+    GString        *buf = g_string_sized_new(1);
+    EffectValues   *values = NULL;
+    ValueType       vtype;
+    gchar          *suffix = "";
+    gdouble         step = 1.0;
+    gint            offset = 0;
+    gboolean        decimal = FALSE;
+
+    values = xml->values;
+    vtype = values->type;
+    while ((vtype & VALUE_TYPE_EXTRA) && value_is_extra(values, value)) {
+        values = values->extra;
+        vtype = values->type;
+    }
+    vtype &= ~VALUE_TYPE_EXTRA;
+
+    if (vtype & VALUE_TYPE_OFFSET) {
+        offset = values->offset;
+        vtype &= ~VALUE_TYPE_OFFSET;
+    }
+
+    if (vtype & VALUE_TYPE_STEP) {
+        step = values->step;
+        vtype &= ~VALUE_TYPE_STEP;
+    }
+
+    if (vtype & VALUE_TYPE_SUFFIX) {
+        suffix = values->suffix;
+        vtype &= ~VALUE_TYPE_SUFFIX;
+    }
+
+    if (vtype & VALUE_TYPE_DECIMAL) {
+        decimal = TRUE;
+        vtype &= ~VALUE_TYPE_DECIMAL;
+    }
+
+    switch (vtype) {
+    case VALUE_TYPE_LABEL:
+    {
+        char *textp = map_xml_value(xml, values, value);
+        if (!textp) {
+            g_warning("%s: Unable to map %s value %d for id %d position %d",
+                      __FUNCTION__, xml->label, value, xml->id, xml->position);
+            textp = "";
+        }
+        g_string_printf(buf, "%s", textp);
+        break;
+    }
+    case VALUE_TYPE_PLAIN:
+    {
+        if (decimal) {
+            double dvalue = ((gint)value + offset) * step;
+                g_string_printf(buf, "%0.2f%s", dvalue, suffix);
+        } else {
+            gint ivalue = ((gint)value + offset) * step;
+            g_string_printf(buf, "%d%s", ivalue, suffix);
+        }
+        break;
+    }
+    case VALUE_TYPE_NONE:
+        g_string_printf(buf, "%s", "");
+        break;
+
+    case VALUE_TYPE_POSID:
+        g_string_printf(buf, "%d", value);
+        break;
+
+    default:
+        g_warning("Unhandled value type %d", vtype);
+        break;
+    }
+
+    return buf;
+}
+
+GString *
+format_ipv (guint id, guint pos, guint val)
+{
+    GString *buf = g_string_sized_new(1);
+    GString *vec_buf = g_string_sized_new(1);
+    XmlSettings *xml = get_xml_settings(id, pos);
+    GString *val_buf;
+
+    if (!xml) {
+        g_warning("Failed to find xml settings for position %d id %d.",
+                   pos, id);
+        g_string_printf(buf, "%s", "error");
+        return buf;
+    }
+    val_buf = format_value(xml, val);
+
+    g_string_printf(vec_buf, "(%d, %d, %d)", pos, id, val);
+    g_string_printf(buf, "%-16s %s: %s: %s",
+                          vec_buf->str,
+                          get_position(pos), xml->label, val_buf->str);
+    g_string_free(vec_buf, TRUE);
+    g_string_free(val_buf, TRUE);
+    return buf;
+}
+
 /**
  *  Registers an error quark for gdigi if necessary.
  *
@@ -122,13 +290,11 @@ GString *pack_data(gchar *data, gint len)
     gint i;
     gint new_len;
     unsigned char status;
-    gint offset;
     gint status_byte;
 
     new_len = len + (len/7);
     packed = g_string_sized_new(new_len);
     status = 0;
-    offset = -1;
     status_byte = 0;
 
     for (i=0; i<len; i++) {
@@ -220,33 +386,57 @@ MessageID get_message_id(GString *msg)
     return -1;
 }
 
+#define HEX_WIDTH 26
+
+static gboolean modifier_linkable_list_request_pending = FALSE;
+
 void push_message(GString *msg)
 {
-    if (((unsigned char)msg->str[0] == 0xF0) && ((unsigned char)msg->str[msg->len-1] == 0xF7))
-        g_message("Pushing correct message!");
-    else
+    MessageID msgid = get_message_id(msg);
+    if (((unsigned char)msg->str[0] == 0xF0) &&
+            ((unsigned char)msg->str[msg->len-1] == 0xF7)) {
+        debug_msg(DEBUG_VERBOSE, "Pushing correct message!");
+    } else {
         g_warning("Pushing incorrect message!");
+    }
 
     int x;
-    for (x = 0; x<msg->len; x++)
-        printf("%02x ", (unsigned char)msg->str[x]);
-    printf("\n");
+    if (debug_flag_is_set(DEBUG_HEX)) {
+        for (x = 0; x<msg->len; x++) {
+            if (x && (x % HEX_WIDTH) == 0) {
+                printf("\n");
+            }
+            printf("%02x ", (unsigned char)msg->str[x]);
+        }
+        if (x % HEX_WIDTH) {
+            printf("\n");
+        }
+    }
+    debug_msg(DEBUG_VERBOSE, "Received %s", get_message_name(msgid));
 
-    switch (get_message_id(msg)) {
+    SettingParam *param;
+    switch (msgid) {
         case ACK:
-            g_message("Received ACK");
             g_string_free(msg, TRUE);
             return;
 
         case NACK:
-            g_message("Received NACK");
+            g_warning("Received NACK!");
             g_string_free(msg, TRUE);
             return;
 
         case RECEIVE_PARAMETER_VALUE:
+        {
             unpack_message(msg);
-            SettingParam *param = setting_param_new_from_data(&msg->str[8], NULL);
-            g_message("Received parameter change ID: %d Position: %d Value: %d", param->id, param->position, param->value);
+            param = setting_param_new_from_data(&msg->str[8], NULL);
+            if (debug_flag_is_set(DEBUG_MSG2HOST)) {
+                GString *ipv = format_ipv(param->id,
+                                          param->position,
+                                          param->value);
+                debug_msg(DEBUG_MSG2HOST, "RECEIVE_PARAMETER_VALUE\n%s",
+                                          ipv->str);
+                g_string_free(ipv, TRUE);
+            }
 
             GDK_THREADS_ENTER();
             apply_setting_param_to_gui(param);
@@ -255,30 +445,127 @@ void push_message(GString *msg)
             setting_param_free(param);
             g_string_free(msg, TRUE);
             return;
+        }
 
         case RECEIVE_DEVICE_NOTIFICATION:
             unpack_message(msg);
             unsigned char *str = (unsigned char*)msg->str;
             switch (str[8]) {
-                case NOTIFY_PRESET_MOVED:
-                    if (str[11] == PRESETS_EDIT_BUFFER && str[12] == 0) {
-                        g_message("Loaded preset %d from bank %d", str[10], str[9]);
+            case NOTIFY_PRESET_MOVED:
+                if (str[11] == PRESETS_EDIT_BUFFER && str[12] == 0) {
 
-                        GDK_THREADS_ENTER();
-                        g_timeout_add(0, apply_current_preset_to_gui, NULL);
-                        GDK_THREADS_LEAVE();
-                    } else
-                        g_message("%d %d moved to %d %d", str[9], str[10], str[11], str[12]);
-                default:
-                    g_message("Received unhandled device notification");
+                    GDK_THREADS_ENTER();
+                    g_timeout_add(0, apply_current_preset_to_gui, NULL);
+                    GDK_THREADS_LEAVE();
+                    debug_msg(DEBUG_MSG2HOST,
+                              "RECEIVE_DEVICE_NOTIFICATION: Loaded preset "
+                              "%d from bank %d",
+                              str[10], str[9]);
+                } else {
+                    debug_msg(DEBUG_MSG2HOST,
+                              "RECEIVE_DEVICE_NOTIFICATION: %d %d moved to "
+                              "%d %d",
+                              str[9], str[10],
+                              str[11], str[12]);
+                }
+                break;
+
+            case NOTIFY_MODIFIER_GROUP_CHANGED:
+            {
+                int i;
+                if (debug_flag_is_set(DEBUG_HEX)) {
+                    printf("\n");
+                    for (i = 0; i < msg->len; i++) {
+                        printf(" %02x", (unsigned char) str[i]);
+                    }
+                    printf("\n");
+                }
+
+                debug_msg(DEBUG_MSG2HOST,
+                          "NOTIFY_MODIFIER_GROUP_CHANGED: Modifier group "
+                          "id %d changed",
+                          (str[9] << 8) | (str[10]));
+
+                if (!modifier_linkable_list_request_pending) {
+                    send_message(REQUEST_MODIFIER_LINKABLE_LIST, "\x00\x01", 2);
+                    modifier_linkable_list_request_pending = TRUE;
+                }
+
+                break;
+            }
+            default:
+                g_warning("Received unhandled device notification 0x%x",
+                          str[11]);
             }
             g_string_free(msg, TRUE);
             return;
+        case RECEIVE_GLOBAL_PARAMETERS:
+            unpack_message(msg);
+            gint tot, n, x;
+            tot = (unsigned char)msg->str[9];
+            if (debug_flag_is_set(DEBUG_HEX)) {
+                for (n = 0; n < msg->len; n++) {
+                    printf("%02x ",(unsigned char) msg->str[n]);
+                }
+                printf("\n");
+            }
+
+            n = 0;
+            x = 10;
+            do {
+                param = setting_param_new_from_data(&msg->str[x], &x);
+                debug_msg(DEBUG_MSG2HOST,
+                          "RECEIVE_GLOBAL_PARAMETERS ID: %5d "
+                          "Position: %2.1d Value: %6.1d: %s",
+                          param->id,
+                          param->position, param->value, "XXX");
+
+                GDK_THREADS_ENTER();
+                apply_setting_param_to_gui(param);
+                GDK_THREADS_LEAVE();
+
+                setting_param_free(param);
+            } while ( (x < msg->len) && n < tot);
+
+            g_string_free(msg, TRUE);
+            return;
+
+
+        case RECEIVE_MODIFIER_LINKABLE_LIST:
+
+            modifier_linkable_list_request_pending = FALSE;
+            unpack_message(msg);
+            tot = (unsigned char)msg->str[9];
+
+            if (debug_flag_is_set(DEBUG_HEX)) {
+                for (n = 0; n < msg->len; n++) {
+                    printf("%02x ",(unsigned char) msg->str[n]);
+                }
+                printf("\n");
+            }
+
+
+            update_modifier_linkable_list(msg);
+
+            g_string_free(msg, TRUE);
+
+            GDK_THREADS_ENTER();
+
+            create_modifier_group(EXP_POSITION, EXP_ASSIGN1);
+            create_modifier_group(LFO1_POSITION, LFO_TYPE);
+            create_modifier_group(LFO2_POSITION, LFO_TYPE);
+
+            GDK_THREADS_LEAVE();
+
+            return;
+
+
         default:
             g_mutex_lock(message_queue_mutex);
             g_queue_push_tail(message_queue, msg);
             g_cond_signal(message_queue_cond);
             g_mutex_unlock(message_queue_mutex);
+            break;
     }
 }
 
@@ -301,8 +588,9 @@ gpointer read_data_thread(gboolean *stop)
         unsigned short revents;
 
         /* SysEx messages can't contain bytes with 8th bit set.
-           memset our buffer to 0xFF, so if for some reason we'll get out of reply bounds, we'll catch it */
-        memset(buf, sizeof(buf), 0xFF);
+           memset our buffer to 0xFF, so if for some reason we'll
+           get out of reply bounds, we'll catch it */
+        memset(buf, '\0', sizeof(buf));
 
         err = poll(pfds, npfds, 200);
         if (err < 0 && errno == EINTR)
@@ -400,6 +688,9 @@ void send_message(gint procedure, gchar *data, gint len)
     g_string_append_printf(msg, "%c\xF7",
                            calculate_checksum(&msg->str[1], msg->len - 1));
 
+    debug_msg(DEBUG_VERBOSE, "Sending %s len %d",
+                              get_message_name(procedure), len);
+
     send_data(msg->str, msg->len);
 
     g_string_free(msg, TRUE);
@@ -620,12 +911,30 @@ SectionID get_genetx_section_id(gint version, gint type)
         }
     }
 
-    g_message("This version of gdigi don't know what to do with this "
+    g_warning("This version of gdigi don't know what to do with this "
               "GeNetX version (%d) and type (%d)", version, type);
 
     return -1;
 }
 
+/**
+ *  \param id Parameter ID
+ *  \param position Parameter position
+ *  \param value Parameter value
+ *
+ *  Forms SysEx message to request parameter then sends it to device.
+ **/
+void get_option(guint id, guint position)
+{
+    GString *msg = g_string_sized_new(9);
+    debug_msg(DEBUG_MSG2DEV, "REQUEST_PARAMETER_VALUE: id %d position %d",
+                              id, position);
+    g_string_append_printf(msg, "%c%c%c",
+                           ((id & 0xFF00) >> 8), (id & 0xFF),
+                           position);
+    send_message(REQUEST_PARAMETER_VALUE, msg->str, msg->len);
+    g_string_free(msg, TRUE);
+}
 /**
  *  \param id Parameter ID
  *  \param position Parameter position
@@ -640,6 +949,11 @@ void set_option(guint id, guint position, guint value)
                            ((id & 0xFF00) >> 8), (id & 0xFF),
                            position);
     append_value(msg, value);
+    if (debug_flag_is_set(DEBUG_MSG2DEV)) {
+        GString *ipv = format_ipv(id, position, value);
+        debug_msg(DEBUG_MSG2DEV, "RECEIVE_PARAMETER_VALUE\n%s", ipv->str);
+        g_string_free(ipv, TRUE);
+    }
     send_message(RECEIVE_PARAMETER_VALUE, msg->str, msg->len);
     g_string_free(msg, TRUE);
 }
@@ -846,11 +1160,12 @@ GList *get_message_list(MessageID id)
                     g_error("get_message_list() doesn't support followning id: %d", id);
                     g_string_free(data, TRUE);
                     g_list_free(list);
+                    g_assert(!"BUG");
                     return NULL;
             }
 
             while (amt) {
-                g_message("%d messages left", amt);
+                debug_msg(DEBUG_VERBOSE, "%d messages left", amt);
                 data = g_queue_pop_nth(message_queue, x);
                 if (data == NULL) {
                     g_cond_wait(message_queue_cond, message_queue_mutex);
@@ -1059,6 +1374,10 @@ static gboolean request_who_am_i(unsigned char *device_id, unsigned char *family
         *family_id = data->str[9];
         *product_id = data->str[10];
         g_string_free(data, TRUE);
+        debug_msg(DEBUG_STARTUP, "Found device id %d family %d product id %d.",
+                                *device_id,
+                                *family_id,
+                                *product_id);
         return TRUE;
     }
     return FALSE;
@@ -1105,11 +1424,56 @@ static void request_device_configuration()
 
 static GOptionEntry options[] = {
     {"device", 'd', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_STRING, &device_port, "MIDI device port to use", NULL},
+    {"debug-flags <flags>", 'D', G_OPTION_FLAG_IN_MAIN, G_OPTION_ARG_CALLBACK, set_debug_flags,
+        "<flags> any of a, d, g, h, m, s, x, v:\n"
+        "                                "
+        "a: Everything.\n"
+        "                                "
+        "d: Messages to the device.\n"
+        "                                "
+        "g: Group messages.\n"
+        "                                "
+        "h: Dump message contents in hex.\n"
+        "                                "
+        "m: All messages.\n"
+        "                                "
+        "s: Startup.\n"
+        "                                "
+        "x: Debug xml parsing/writing.\n"
+        "                                "
+        "v: Additional verbosity.\n" ,
+        NULL},
     {NULL}
 };
 
 #endif /* DOXYGEN_SHOULD_SKIP_THIS */
 
+/**
+ *  \param[out] devices GList containing numbers (packed into pointers)
+ *              of connected DigiTech devices
+ *
+ *  Checks available soundcards for DigiTech devices.
+ *
+ *  \return the number of connected DigiTech devices.
+ **/
+static gint get_digitech_devices(GList **devices)
+{
+    gint card_num = -1;
+    gint number = 0;
+
+    while (!snd_card_next(&card_num) && (card_num > -1)) {
+        char* name;
+        snd_card_get_longname(card_num, &name);
+        if (strspn(name,"DigiTech") > 0) {
+            number++;
+            *devices = g_list_append(*devices, GINT_TO_POINTER(card_num));
+        }
+        free(name);
+    }
+
+    return number;
+}
+
 int main(int argc, char *argv[]) {
     GError *error = NULL;
     GOptionContext *context;
@@ -1124,12 +1488,38 @@ int main(int argc, char *argv[]) {
     g_option_context_add_group(context, gtk_get_option_group(TRUE));
 
     if (!g_option_context_parse(context, &argc, &argv, &error)) {
-        g_message("option parsing failed: %s\n", error->message);
+        g_warning("option parsing failed: %s\n", error->message);
         g_error_free(error);
         g_option_context_free(context);
         exit(EXIT_FAILURE);
     }
 
+    if (device_port == NULL) {
+        /* port not given explicitly in commandline - search for devices */
+        GList *devices = NULL;
+        GList *device = NULL;
+        int    num_devices = 0;
+        int    chosen_device = 0;
+        if ((num_devices = get_digitech_devices(&devices)) <= 0) {
+            g_warning("Couldn't find DigiTech devices!");
+            exit(EXIT_FAILURE);
+        }
+        if (num_devices > 1) {
+            chosen_device = select_device_dialog(devices);
+            if (chosen_device < 0) {
+                show_error_message(NULL, "No device chosen");
+                exit(EXIT_FAILURE);
+            }
+        }
+        device = g_list_nth(devices, chosen_device);
+        device_port = g_strdup_printf("hw:%d,0,0",
+                                      GPOINTER_TO_INT(device->data));
+        g_list_free(devices);
+        debug_msg(DEBUG_STARTUP, "Found device %s.", device_port);
+    } else {
+        debug_msg(DEBUG_STARTUP, "Using device %s.", device_port);
+    }
+
     g_option_context_free(context);
 
     if (open_device() == TRUE) {
@@ -1155,14 +1545,14 @@ int main(int argc, char *argv[]) {
 
             if (device != NULL) {
                 /* enable GUI mode */
-                set_option(GUI_MODE_ON_OFF, USB_POSITION, 1);
+                set_option(GUI_MODE_ON_OFF, GLOBAL_POSITION, 1);
 
                 gui_create(device);
                 gtk_main();
                 gui_free();
 
                 /* disable GUI mode */
-                set_option(GUI_MODE_ON_OFF, USB_POSITION, 0);
+                set_option(GUI_MODE_ON_OFF, GLOBAL_POSITION, 0);
             }
         }
     }
@@ -1176,8 +1566,8 @@ int main(int argc, char *argv[]) {
         g_mutex_free(message_queue_mutex);
     }
 
-    if (message_queue != NULL) {
-        g_message("%d unread messages in queue",
+    if (message_queue != NULL && g_queue_get_length(message_queue)) {
+        g_warning("%d unread messages in queue",
                   g_queue_get_length(message_queue));
         g_queue_foreach(message_queue, (GFunc) message_free_func, NULL);
         g_queue_free(message_queue);

gdigi.desktop

@@ -3,4 +3,7 @@ Version=1.0
 Type=Application
 Name=gdigi
 Exec=gdigi
+Categories=GTK;Audio;AudioVideo;
+Icon=gdigi
+X-Desktop-File-Install-Version=0.20
 

gdigi.h

@@ -22,6 +22,19 @@
 
 #ifndef DOXYGEN_SHOULD_SKIP_THIS
 
+typedef enum {
+    DEBUG_MSG2DEV   = (1 << 0),     // Device bound messages.
+    DEBUG_MSG2HOST  = (1 << 1),     // Host bound messages.
+    DEBUG_STARTUP   = (1 << 2),
+    DEBUG_GROUP     = (1 << 3),     // Modifier group
+    DEBUG_HEX       = (1 << 4),     // Dump message contents in hex.
+    DEBUG_XML       = (1 << 5),
+    DEBUG_VERBOSE   = (1 << 6),
+} debug_flags_t;
+
+void debug_msg (debug_flags_t, char *fmt, ...);
+gboolean debug_flag_is_set (debug_flags_t flag);
+
 #define GNX_CHANNEL_POSITION 7
 #define GNX_CHANNEL_AMP 260
 #define GNX_WARP 261
@@ -29,6 +42,8 @@
 #define GNX_CABINET_WARP 263
 #define GNX_CHANNEL_FS_MODE 264
 
+unsigned char product_id;
+
 enum {
   GNX3K_WAH_TYPE_CRY = 129,
   GNX3K_WAH_TYPE_BOUTIQUE = 130,
@@ -48,6 +63,9 @@ enum {
 #define WAH_ON_OFF 129
 #define WAH_POSITION 3
 
+#define WAH_PEDAL_POSITION 132
+#define WAH_VOLUME_BOOST 133
+
 #define WAH_LEVEL 133
 
 enum {
@@ -93,8 +111,8 @@ enum {
 #define COMP_OUTPUT 212
 
 enum {
+  PICKUP_TYPE_SC_HB = 65,
   PICKUP_TYPE_HB_SC = 66,
-  PICKUP_TYPE_SC_HB = 65
 };
 
 #define PICKUP_TYPE 64
@@ -227,9 +245,15 @@ enum {
 #define DIST_MP_TONE        2446
 #define DIST_MP_VOLUME      2447
 
+#define VOLUME_PRE_FX_POSITION 13
+#define VOLUME_POST_FX_POSITION 17
+
 #define PRESET_POSITION 18
 #define PRESET_LEVEL 2626
 
+#define STOMP_LOOP_ON_OFF 3329
+#define STOMP_LOOP_POSITION 34
+
 enum {
   AMP_TYPE_TWEED_CHAMP = 307,
   AMP_TYPE_TWEED_DELUXE = 308,
@@ -239,7 +263,7 @@ enum {
   AMP_TYPE_BLACKFACE_DELUXE = 312,
   AMP_TYPE_PLEXI_JTM_45 = 313,
   AMP_TYPE_SUPER_LEAD_PLEXI = 314,
-  AMP_TYPE_PLEXI_JUMP_PANEL = 315,
+  AMP_TYPE_68_MARSHALL_JUMP = 315,
   AMP_TYPE_MASTER_VOLUME = 316,
   AMP_TYPE_JCM800 = 317,
   AMP_TYPE_JCM900 = 318,
@@ -267,7 +291,7 @@ enum {
   AMP_TYPE_METAL = 332,
   AMP_TYPE_BRIGHT = 333,
   AMP_TYPE_CHUNK = 334,
-  AMP_TYPE_CLEAN = 335,
+  AMP_TYPE_DIGITECH_CLEAN = 335,
   AMP_TYPE_HIGH_GAIN = 337,
   AMP_TYPE_BLUES = 338,
   AMP_TYPE_FUZZ = 339,
@@ -307,8 +331,8 @@ enum {
 
 #define AMP_TYPE 2496
 #define AMP_ON_OFF 265
-#define AMP_POSITION 8
-#define CH2_AMP_POSITION 10
+#define AMP_A_POSITION 8
+#define AMP_B_POSITION 10
 
 #define AMP_LOOP_ON_OFF 3649
 #define AMP_LOOP_POSITION 33
@@ -316,11 +340,12 @@ enum {
 #define AMP_BYPASS_ON_OFF 12361
 #define AMP_BYPASS_POSITION 0
 
-#define AMP_SELECT 256
-#define AMP_SELECT_POSITION 7
+#define AMP_CHANNEL 256
+#define AMP_CHANNEL_POSITION 7
 
 #define AMP_CHANNEL_A 0
 #define AMP_CHANNEL_B 1
+#define AMP_CHANNEL_WARP 2
 
 #define AMP_GAIN 2497
 #define AMP_LEVEL 2498
@@ -339,7 +364,7 @@ enum {
 #define AMP_CAB_TYPE 2560
 #define AMP_CAB_TUNING 2561
 #define AMP_CAB_POSITION 9
-#define CH2_AMP_CAB_POSITION 11
+#define AMP_CAB_B_POSITION 11
 
 enum {
   AMP_CAB_DIRECT = 570,
@@ -406,23 +431,23 @@ enum {
   GNX_AMP_CAB_SVT_BASS8_10 = 595,
 };
 
-#define EQ_TYPE 3202
-#define EQ_ON_OFF 3212
-#define EQ_POSITION 24
-#define EQ_POSITION_B 25
+#define EQ_A_POSITION 24
+#define EQ_B_POSITION 25
 
+#define EQ_TYPE 3202
 #define EQ_BASS 3203
 #define EQ_MID 3204
-#define EQ_MID_HZ 3206
-#define EQ_TREBLE 3205
+#define EQ_TREB 3205
+#define EQ_MID_FREQ 3206
 #define EQ_PRESENCE 3207
-#define EQ_TREBLE_HZ 3211
-#define EQ_LOW_LEVEL 3203
-#define EQ_MID_LEVEL 3204
-#define EQ_HIGH_LEVEL 3205
+#define EQ_TREB_FREQ 3211
+#define EQ_ENABLE 3212
+
 #define EQ_LOW_FREQ 3213
-#define EQ_MID_FREQ 3214
+#define EQ_MID_FREQ_RP500 3214
 #define EQ_HIGH_FREQ 3215
+
+#define EQ_TREBLE_FREQ 3215
 #define EQ_LOW_BANDWIDTH 3216
 #define EQ_MID_BANDWIDTH 3217
 #define EQ_HIGH_BANDWIDTH 3218
@@ -467,49 +492,53 @@ enum {
 };
 
 enum {
-  CHORUS_TYPE_CE = 0x37B,
-  CHORUS_TYPE_TC = 0x37C,
-  CHORUS_TYPE_DUAL = 0x379,
-  CHORUS_TYPE_GLISTEN = 0x392,
-  CHORUS_TYPE_MULTI = 0x37a,
-  CHORUS_TYPE_VOO_DOO = 0x396,
-  CHORUS_TYPE_CLONE = 0x397,
-  CHORUS_TYPE_FLANGER = 0x37d,
-  CHORUS_TYPE_TRIGGERED_FLANGER = 0x37e,
-  CHORUS_TYPE_FLTFLANGER = 0x398,
-  CHORUS_TYPE_MXR_FLANGER = 0x37f,
-  CHORUS_TYPE_EH_FLANGER = 0x380,
-  CHORUS_TYPE_AD_FLANGER = 0x393,
-  CHORUS_TYPE_PHASER = 0x381,
-  CHORUS_TYPE_TRIGGERED_PHASER = 0x382,
-  CHORUS_TYPE_MX_PHASER = 0x383,
-  CHORUS_TYPE_EH_PHASER = 0x384,
-  CHORUS_TYPE_VIBRATO = 0x360,
-  CHORUS_TYPE_ROTARY = 0x361,
-  CHORUS_TYPE_VIBROPAN = 0x38f,
-  CHORUS_TYPE_UNOVIBE = 0x390,
-  CHORUS_TYPE_TREMOLO = 0x35e,
-  CHORUS_TYPE_SCATTER_TREM = 0x394,
-  CHORUS_TYPE_OPTO_TREMOLO = 0x388,
-  CHORUS_TYPE_BIAS_TREMOLO = 0x389,
-  CHORUS_TYPE_PANNER = 0x35f,
-  CHORUS_TYPE_ENVELOPE = 0x38a,
-  CHORUS_TYPE_FX25 = 0x38e,
-  CHORUS_TYPE_AUTOYA = 0x38b,
-  CHORUS_TYPE_YAYA = 0x38c,
-  CHORUS_TYPE_SYNTH_TALK = 0x391,
-  CHORUS_TYPE_STEP_FILTER = 0x38d,
-  CHORUS_TYPE_SAMPLE_HOLD = 0x395,
-  CHORUS_TYPE_WHAMMY = 0x540,
-  CHORUS_TYPE_PITCH_SHIFT = 0x543,
-  CHORUS_TYPE_DETUNE = 0x542,
-  CHORUS_TYPE_IPS = 0x541,
-  CHORUS_TYPE_OCTAVER = 0x385,
+  CHORUS_TYPE_CE = 891,
+  CHORUS_TYPE_TC = 892,
+  CHORUS_TYPE_DUAL = 889,
+  CHORUS_TYPE_GLISTEN = 914,
+  CHORUS_TYPE_MULTI = 890,
+  CHORUS_TYPE_VOO_DOO = 918,
+  CHORUS_TYPE_CLONE = 919,
+  CHORUS_TYPE_FLANGER = 893,
+  CHORUS_TYPE_TRIGGERED_FLANGER = 894,
+  CHORUS_TYPE_FLTFLANGER = 920,
+  CHORUS_TYPE_MXR_FLANGER = 895,
+  CHORUS_TYPE_EH_FLANGER = 896,
+  CHORUS_TYPE_AD_FLANGER = 915,
+  CHORUS_TYPE_PHASER = 897,
+  CHORUS_TYPE_TRIGGERED_PHASER = 898,
+  CHORUS_TYPE_MX_PHASER = 899,
+  CHORUS_TYPE_EH_PHASER = 900,
+  CHORUS_TYPE_VIBRATO = 864,
+  CHORUS_TYPE_ROTARY = 865,
+  CHORUS_TYPE_VIBROPAN = 911,
+  CHORUS_TYPE_UNOVIBE = 912,
+  CHORUS_TYPE_TREMOLO = 862,
+  CHORUS_TYPE_SCATTER_TREM = 916,
+  CHORUS_TYPE_OPTO_TREMOLO = 904,
+  CHORUS_TYPE_BIAS_TREMOLO = 905,
+  CHORUS_TYPE_PANNER = 863,
+  CHORUS_TYPE_ENVELOPE = 906,
+  CHORUS_TYPE_FX25 = 910,
+  CHORUS_TYPE_AUTOYA = 907,
+  CHORUS_TYPE_YAYA = 908,
+  CHORUS_TYPE_SYNTH_TALK = 913,
+  CHORUS_TYPE_STEP_FILTER = 909,
+  CHORUS_TYPE_SAMPLE_HOLD = 917,
+  CHORUS_TYPE_WHAMMY = 1344,
+  CHORUS_TYPE_PITCH_SHIFT = 1347,
+  CHORUS_TYPE_DETUNE = 1346,
+  CHORUS_TYPE_IPS = 1345, // Also known as Harmony
+  CHORUS_TYPE_OCTAVER = 901,
 };
 
+#define MOD_TYPE 768
+#define MOD_PRE_POST 1798
+
 #define CHORUSFX_TYPE 768
 #define CHORUSFX_ON_OFF 769
 #define CHORUSFX_PRE_POST 770
+
 #define CHORUSFX_POSITION 14
 #define CHORUSFX_PRE 1543
 #define CHORUSFX_POST 1544
@@ -521,6 +550,12 @@ enum {
 #define CHORUS_WIDTH 848
 #define CHORUS_INTENSITY 849
 
+enum {
+    CHORUS_WAVEFORM_TRI = 0,
+    CHORUS_WAVEFORM_SINE = 1,
+    CHORUS_WAVEFORM_SQUARE = 2,
+};
+
 #define CHORUS_LEVEL 836
 #define CHORUS_WAVE 840
 #define CHORUS_BALANCE 841
@@ -638,6 +673,25 @@ enum {
 #define WHAMMY_PEDAL 1795
 #define WHAMMY_MIX 1796
 
+enum whammy_amt {
+    WHAMMY_TYPE_OCT_UP = 0,
+    WHAMMY_TYPE_2OCT_UP = 1,
+    WHAMMY_TYPE_2ND_DN = 2,
+    WHAMMY_TYPE_RV2ND_DN = 3,
+    WHAMMY_TYPE_4TH_DN = 4,
+    WHAMMY_TYPE_OCT_DN = 5,
+    WHAMMY_TYPE_2OCT_DN = 6,
+    WHAMMY_TYPE_DIV_BMB = 7,
+    WHAMMY_TYPE_M3_GT_MA3 = 8,
+    WHAMMY_TYPE_2ND_MA3 = 9,
+    WHAMMY_TYPE_3RD_4TH = 10,
+    WHAMMY_TYPE_4TH_5TH = 11,
+    WHAMMY_TYPE_5TH_OCT = 12,
+    WHAMMY_TYPE_HOCT_UP = 13,
+    WHAMMY_TYPE_HOCT_DN = 14,
+    WHAMMY_TYPE_OCT_GT_D = 15,
+};
+
 #define PITCH_AMOUNT 1730
 #define PITCH_BALANCE 1733
 #define PITCH_MIX 1745
@@ -651,6 +705,47 @@ enum {
 #define IPS_SCALE 2755
 #define IPS_LEVEL 2757
 
+enum {
+    IPS_KEY_E = 0,
+    IPS_KEY_F = 1,
+    IPS_KEY_Gb = 2,
+    IPS_KEY_G = 3,
+    IPS_KEY_Ab = 4,
+    IPS_KEY_A = 5,
+    IPS_KEY_Bb = 6,
+    IPS_KEY_B = 7,
+    IPS_KEY_C = 8,
+    IPS_KEY_Db = 9,
+    IPS_KEY_D = 10,
+    IPS_KEY_Eb = 11,
+};
+
+enum {
+    IPS_SHIFT_OCT_DN = 0,
+    IPS_SHIFT_7TH_DN = 1,
+    IPS_SHIFT_6TH_DN = 2,
+    IPS_SHIFT_5TH_DN = 3,
+    IPS_SHIFT_4TH_DN = 4,
+    IPS_SHIFT_3RD_DN = 5,
+    IPS_SHIFT_2ND_DN = 6,
+    IPS_SHIFT_2ND_UP = 7,
+    IPS_SHIFT_3RD_UP = 8,
+    IPS_SHIFT_4TH_UP = 9,
+    IPS_SHIFT_5TH_UP = 10,
+    IPS_SHIFT_6TH_UP = 11,
+    IPS_SHIFT_7TH_UP = 12,
+    IPS_SHIFT_OCT_UP = 13,
+};
+
+enum {
+    IPS_SCALE_MAJOR = 0,
+    IPS_SCALE_MINOR = 1,
+    IPS_SCALE_DORIAN = 2,
+    IPS_SCALE_MIXOLYDIAN = 3,
+    IPS_SCALE_LYDIAN = 4,
+    IPS_SCALE_HMINOR = 5,
+};
+
 #define OCTAVER_OCTAVE1 1746
 #define OCTAVER_OCTAVE2 1747
 #define OCTAVER_DRY_LEVEL 1748
@@ -757,19 +852,66 @@ enum {
 #define REVERB_LEVEL 1925
 
 #define EXP_TYPE 8194
+#define EXP_ASSIGN1 8194
 #define EXP_POSITION 19
 
+#define EXP_VOLUME_PRE_FX 854594
+#define EXP_VOLUME_POST_FX 1116738
+
 #define EXP_MIN 8195
 #define EXP_MAX 8196
+
 #define LFO_TYPE 8258
+#define LFO_MIN 8259
+#define LFO_MAX 8260
+#define LFO_SPEED 8262
+#define LFO_WAVEFORM 8263
+
+#define LFO_WAVEFORM_TRI 0
+#define LFO_WAVEFORM_SINE 1
+#define LFO_WAVEFORM_SQUARE 2
+
 #define LFO1_POSITION 22
 #define LFO2_POSITION 23
 
+// The LFO and VSWITCH defines are temporary.
+#define LFO_ASSIGN_NONE 0
+#define LFO_ASSIGN_PICKUP_ON 131137
+#define LFO_ASSIGN_COMP_ON 262337
+#define LFO_ASSIGN_SUSTAN 262352
+
+#define VSWITCH_ASSIGN 8384
+#define VSWITCH_MIN 8385
+#define VSWITCH_MAX 8386
+#define VSWITCH_TYPE 8393
+#define VSWITCH_ENABLE 8449
+#define VSWITCH_ASSIGN_POSITION 21
+
+#define VSWITCH_TYPE_TOGGLE 0
+#define VSWITCH_PEDAL_ASSIGN_WAH 196740
+#define VSWITCH_ASSIGN_WAH_ENABLE 196737
+
+#define FOOTSWITCH_6_POSITION 28
+#define FOOTSWITCH_7_POSITION 29
+#define FOOTSWITCH_8_POSITION 30
+#define FOOTSWITCH_9_POSITION 31
+#define FOOTSWITCH_10_POSITION 32
+
 #define LIBRARY_TONE 8704
 #define LIBRARY_EFFECTS 8705
 #define EFFECTS_LEVEL 8706
 
-#define LIBRARY_POSITION 25
+#define LIB_POSITION_A 26
+#define LIB_POSITION_B 25
+
+#define TONE_LIB_TYPE 8704
+#define FX_LIB_TYPE 8705
+#define FX_LIB_LEVEL 8706      // This influences pitch shift mix, delay level,
+                               // and reverb level, in proportion, as
+                               // specified by FX_LIB_LEVEL_MAX1,2,3.
+#define FX_LIB_LEVEL_MAX1 8708
+#define FX_LIB_LEVEL_MAX2 8710
+#define FX_LIB_LEVEL_MAX3 8712
 
 enum {
   TONE_LIB_OVERDRIVE = 1793,
@@ -843,12 +985,17 @@ enum {
   EFFECTS_LIB_CUSTOM = 1856
 };
 
-#define USB_POSITION 0
+#define GLOBAL_POSITION 0 
+
+#define TUNING_REFERENCE 12288
 #define USB_AUDIO_PLAYBACK_MIX 12297
 #define USB_AUDIO_LEVEL 12307
 
 #define GUI_MODE_ON_OFF 12298
 
+#define EXP_PEDAL_LEVEL 12300
+#define STOMP_MODE 12370
+
 #endif /* DOXYGEN_SHOULD_SKIP_THIS */
 
 typedef enum {
@@ -994,6 +1141,7 @@ void setting_genetx_free(SettingGenetx *genetx);
 void setting_param_free(SettingParam *param);
 SectionID get_genetx_section_id(gint version, gint type);
 void set_option(guint id, guint position, guint value);
+void get_option(guint id, guint position);
 void send_object(SectionID section, guint bank, guint index,
                  gchar *name, GString *data);
 void send_preset_parameters(GList *params);
@@ -1003,5 +1151,6 @@ void set_preset_level(int level);
 GStrv query_preset_names(gchar bank);
 void message_list_free(GList *list);
 GList *get_current_preset();
+GString *format_ipv(guint id, guint pos, guint val);
 
 #endif /* GDIGI_H */

gdigi_xml.h

@@ -0,0 +1,40 @@
+/*
+ *  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_XML_H
+#define GDIGI_XML_H
+
+#include <glib.h>
+#include "effects.h"
+typedef struct {
+    guint   type;
+    gchar  *label;
+} XmlLabel;
+
+typedef struct {
+    guint           id;
+    guint           position;
+    gchar          *label;
+    EffectValues   *values;
+    XmlLabel       *xml_labels;        /* 'type' id's have a label group. */
+    guint           xml_labels_amt;
+} XmlSettings;
+
+XmlSettings *get_xml_settings(guint id, guint position);
+gboolean value_is_extra(EffectValues *val, int value);
+gchar * map_xml_value(XmlSettings *xml, EffectValues *values, gint value);
+
+#endif /* GDIGI_XML_H */

gtkknob.c

@@ -4,7 +4,7 @@
  * 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
+ * copyright (C) 2009-2011
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -18,14 +18,16 @@
  *
  * 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.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA.
  *****************************************************************************/
 
 #include <math.h>
 #include <gtk/gtk.h>
 #include <gdk/gdkkeysyms.h>
+#include <string.h>
 #include "gtkknob.h"
-
+#include "knob.h"
 
 #ifndef M_PI
 # define M_PI		3.14159265358979323846	/* pi */
@@ -44,11 +46,15 @@
 
 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_destroy(GtkWidget *object);
 static void gtk_knob_realize(GtkWidget *widget);
-static void gtk_knob_size_request(GtkWidget *widget, GtkRequisition *requisition);
+static void gtk_knob_unrealize(GtkWidget *widget);
+static void gtk_knob_map(GtkWidget *widget);
+static void gtk_knob_unmap(GtkWidget *widget);
+static void gtk_knob_get_preferred_width(GtkWidget *widget, gint *minimum_width, gint *natural_width);
+static void gtk_knob_get_preferred_height(GtkWidget *widget, gint *minimum_height, gint *natural_height);
 static void gtk_knob_size_allocate(GtkWidget *widget, GtkAllocation *allocation);
-static gint gtk_knob_expose(GtkWidget *widget, GdkEventExpose *event);
+static gboolean gtk_knob_draw(GtkWidget *widget, cairo_t *cr);
 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);
@@ -102,25 +108,27 @@ gtk_knob_get_type(void) {
  *****************************************************************************/
 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->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->unrealize            = gtk_knob_unrealize;
+    widget_class->draw                 = gtk_knob_draw;
+    widget_class->get_preferred_width  = gtk_knob_get_preferred_width;
+    widget_class->get_preferred_height = gtk_knob_get_preferred_height;
     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;
+    widget_class->map                  = gtk_knob_map;
+    widget_class->unmap                = gtk_knob_unmap;
 }
 
 
@@ -131,19 +139,22 @@ gtk_knob_class_init (GtkKnobClass *klass) {
  *****************************************************************************/
 static void
 gtk_knob_init (GtkKnob *knob) {
-    knob->policy     = GTK_UPDATE_CONTINUOUS;
+    knob->policy     = GTK_KNOB_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_widget_set_can_focus(GTK_WIDGET(knob), TRUE);
+    gtk_widget_set_has_window(GTK_WIDGET(knob), FALSE);
+    gtk_widget_set_hexpand(GTK_WIDGET(knob), FALSE);
+    gtk_widget_set_vexpand(GTK_WIDGET(knob), FALSE);
+    gtk_widget_add_events(GTK_WIDGET(knob), GDK_SCROLL_MASK);
 }
 
 
@@ -157,7 +168,6 @@ 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);
 
@@ -180,7 +190,7 @@ gtk_knob_new(GtkAdjustment *adjustment, GtkKnobAnim *anim) {
  *
  *****************************************************************************/
 static void
-gtk_knob_destroy(GtkObject *object) {
+gtk_knob_destroy(GtkWidget *object) {
     GtkKnob *knob;
 
     g_return_if_fail (object != NULL);
@@ -196,22 +206,8 @@ gtk_knob_destroy(GtkObject *object) {
        }
     */
 
-    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);
+    if (GTK_WIDGET_CLASS(parent_class)->destroy) {
+	(*GTK_WIDGET_CLASS (parent_class)->destroy) (object);
     }
 }
 
@@ -237,7 +233,7 @@ gtk_knob_get_adjustment(GtkKnob *knob) {
  *
  *****************************************************************************/
 void
-gtk_knob_set_update_policy(GtkKnob *knob, GtkUpdateType policy) {
+gtk_knob_set_update_policy(GtkKnob *knob, GtkKnobUpdateType policy) {
 
     g_return_if_fail (knob != NULL);
     g_return_if_fail (GTK_IS_KNOB (knob));
@@ -276,9 +272,9 @@ gtk_knob_set_adjustment(GtkKnob *knob, GtkAdjustment *adjustment) {
 			G_CALLBACK(gtk_knob_adjustment_value_changed),
 			knob);
 
-	knob->old_value = adjustment->value;
-	knob->old_lower = adjustment->lower;
-	knob->old_upper = adjustment->upper;
+	knob->old_value = gtk_adjustment_get_value(adjustment);
+	knob->old_lower = gtk_adjustment_get_lower(adjustment);
+	knob->old_upper = gtk_adjustment_get_upper(adjustment);
 
 	gtk_knob_update (knob);
     }
@@ -293,66 +289,98 @@ gtk_knob_set_adjustment(GtkKnob *knob, GtkAdjustment *adjustment) {
 static void
 gtk_knob_realize(GtkWidget *widget) {
     GtkKnob *knob;
+    GdkWindow *window;
     GdkWindowAttr attributes;
+    GtkAllocation allocation;
+
     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);
+    gtk_widget_get_allocation (widget, &allocation);
+    gtk_widget_set_realized(widget, TRUE);
     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.x           = allocation.x;
+    attributes.y           = allocation.y;
+    attributes.width       = allocation.width;
+    attributes.height      = allocation.height;
+    attributes.wclass      = GDK_INPUT_ONLY;;
     attributes.event_mask  =
 	gtk_widget_get_events (widget) |
-	GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_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;
+    attributes_mask = GDK_WA_X | GDK_WA_Y;
 
-    widget->window = gdk_window_new (widget->parent->window,
-				     &attributes, attributes_mask);
+    window = gtk_widget_get_parent_window(widget);
+    gtk_widget_set_window(widget, window);
+    g_object_ref(window);
 
-    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);
+    knob->event_window = gdk_window_new(window, &attributes, attributes_mask);
+    gdk_window_set_user_data(knob->event_window, knob);
 }
 
-
-/*****************************************************************************
- *
- * gtk_knob_size_request()
- *
- *****************************************************************************/
 static void
-gtk_knob_size_request (GtkWidget *widget, GtkRequisition *requisition) {
+gtk_knob_unrealize(GtkWidget *widget)
+{
+    GtkKnob *knob = GTK_KNOB(widget);
 
+    if (knob->event_window)
+    {
+        gdk_window_set_user_data(knob->event_window, NULL);
+        gdk_window_destroy(knob->event_window);
+        knob->event_window = NULL;
+    }
+
+    GTK_WIDGET_CLASS(parent_class)->unrealize(widget);
+}
+
+static void
+gtk_knob_map(GtkWidget *widget)
+{
+    GtkKnob *knob = GTK_KNOB(widget);
+
+    GTK_WIDGET_CLASS(parent_class)->map(widget);
+
+    if (knob->event_window)
+        gdk_window_show(knob->event_window);
+}
+
+static void
+gtk_knob_unmap(GtkWidget *widget)
+{
+    GtkKnob *knob = GTK_KNOB(widget);
+
+    if (knob->event_window)
+        gdk_window_hide(knob->event_window);
+
+    GTK_WIDGET_CLASS(parent_class)->unmap(widget);
+}
+
+static void
+gtk_knob_get_preferred_width(GtkWidget *widget,
+                             gint *minimum_width,
+                             gint *natural_width)
+{
     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;
+    *minimum_width = *natural_width = GTK_KNOB(widget)->width;
+}
+
+static void
+gtk_knob_get_preferred_height(GtkWidget *widget,
+                              gint *minimum_height,
+                              gint *natural_height)
+{
+    g_return_if_fail (widget != NULL);
+    g_return_if_fail (GTK_IS_KNOB (widget));
+
+    *minimum_height = *natural_height = GTK_KNOB(widget)->height;
 }
 
 
@@ -369,11 +397,11 @@ gtk_knob_size_allocate (GtkWidget *widget, GtkAllocation *allocation) {
     g_return_if_fail (GTK_IS_KNOB (widget));
     g_return_if_fail (allocation != NULL);
 
-    widget->allocation = *allocation;
+    gtk_widget_set_allocation(widget, allocation);
     knob = GTK_KNOB (widget);
 
-    if (GTK_WIDGET_REALIZED (widget)) {
-	gdk_window_move_resize (widget->window,
+    if (gtk_widget_get_realized (widget)) {
+	gdk_window_move_resize (knob->event_window,
 				allocation->x, allocation->y,
 				allocation->width, allocation->height);
     }
@@ -382,39 +410,50 @@ gtk_knob_size_allocate (GtkWidget *widget, GtkAllocation *allocation) {
 
 /*****************************************************************************
  *
- * gtk_knob_expose()
+ * gtk_knob_draw()
  *
  *****************************************************************************/
-static gint
-gtk_knob_expose(GtkWidget *widget, GdkEventExpose *event) {
+static gboolean
+gtk_knob_draw(GtkWidget *widget, cairo_t *cr) {
     GtkKnob *knob;
-    gfloat dx, dy;
+    gdouble 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 (cr != 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 = gtk_adjustment_get_value(knob->adjustment) - gtk_adjustment_get_lower(knob->adjustment);	/* value, from 0 */
+    dy = gtk_adjustment_get_upper(knob->adjustment) - gtk_adjustment_get_lower(knob->adjustment);	/* 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);
+    cairo_surface_t *surface =
+        cairo_surface_create_for_rectangle(knob->anim->image,
+                                           dx, 0.0,
+                                           (double)knob->width,
+                                           (double)knob->height);
+    cairo_set_source_surface(cr, surface, 0, 0);
+    cairo_paint(cr);
+    cairo_surface_destroy(surface);
 
-    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);
+    if (gtk_widget_has_focus(widget)) {
+        GtkStyleContext *context;
+
+        context = gtk_widget_get_style_context(widget);
+        gtk_style_context_save(context);
+        gtk_style_context_set_state(context, gtk_widget_get_state_flags (widget));
+        cairo_save(cr);
+        gtk_render_focus(context, cr,
+                         0, 0,
+                         gtk_widget_get_allocated_width(widget),
+                         gtk_widget_get_allocated_height(widget));
+        cairo_restore(cr);
+        gtk_style_context_restore(context);
     }
 
     return FALSE;
@@ -439,11 +478,15 @@ gtk_knob_scroll(GtkWidget *widget, GdkEventScroll *event) {
 
     switch (event->direction) {
     case GDK_SCROLL_UP:
-	knob->adjustment->value += knob->adjustment->step_increment;
+	gtk_adjustment_set_value(knob->adjustment,
+            gtk_adjustment_get_value(knob->adjustment) +
+            gtk_adjustment_get_step_increment(knob->adjustment));
 	g_signal_emit_by_name (knob->adjustment, "value_changed");
 	break;
     case GDK_SCROLL_DOWN:
-	knob->adjustment->value -= knob->adjustment->step_increment;
+	gtk_adjustment_set_value(knob->adjustment,
+            gtk_adjustment_get_value(knob->adjustment) -
+            gtk_adjustment_get_step_increment(knob->adjustment));
 	g_signal_emit_by_name (knob->adjustment, "value_changed");
 	break;
     default:
@@ -475,16 +518,17 @@ gtk_knob_button_press(GtkWidget *widget, GdkEventButton *event) {
 	switch (event->button) {
 	case 1:
 	case 3:
-	    if (!GTK_WIDGET_HAS_FOCUS(widget))
+	    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);
+	    gtk_adjustment_set_value(knob->adjustment,
+                floor ((gtk_adjustment_get_lower(knob->adjustment) +
+		gtk_adjustment_get_upper(knob->adjustment) + 1.0)
+		* 0.5));
 	    g_signal_emit_by_name (knob->adjustment, "value_changed");
 	    break;
 	}
@@ -523,8 +567,8 @@ gtk_knob_button_release(GtkWidget *widget, GdkEventButton *event) {
 	switch (event->button) {
 	case 1:
 	case 3:
-	    if (knob->policy != GTK_UPDATE_CONTINUOUS
-		&& knob->old_value != knob->adjustment->value)
+	    if (knob->policy != GTK_KNOB_UPDATE_CONTINUOUS
+		&& knob->old_value != gtk_adjustment_get_value(knob->adjustment))
 	    {
 		g_signal_emit_by_name (knob->adjustment, "value_changed");
 	    }
@@ -550,20 +594,20 @@ static gint gtk_knob_key_press(GtkWidget *widget, GdkEventKey *event)
 
     switch (event->keyval) {
 
-    case GDK_Up:
-        if (GTK_WIDGET_HAS_FOCUS (widget))
+    case GDK_KEY_Up:
+        if (gtk_widget_has_focus (widget))
         {
             gtk_adjustment_set_value (knob->adjustment,
-                                      knob->old_value + knob->adjustment->step_increment);
+                                      knob->old_value + gtk_adjustment_get_step_increment(knob->adjustment));
             return TRUE;
         }
         return FALSE;
 
-    case GDK_Down:
-        if (GTK_WIDGET_HAS_FOCUS (widget))
+    case GDK_KEY_Down:
+        if (gtk_widget_has_focus (widget))
         {
             gtk_adjustment_set_value (knob->adjustment,
-                                      knob->old_value - knob->adjustment->step_increment);
+                                      knob->old_value - gtk_adjustment_get_step_increment(knob->adjustment));
             return TRUE;
         }
         return FALSE;
@@ -582,7 +626,7 @@ static gint gtk_knob_key_press(GtkWidget *widget, GdkEventKey *event)
 static gint
 gtk_knob_motion_notify(GtkWidget *widget, GdkEventMotion *event) {
     GtkKnob *knob;
-    GdkModifierType mods;
+    GdkWindow *window;
     gint x, y;
 
     g_return_val_if_fail (widget != NULL, FALSE);
@@ -594,10 +638,6 @@ gtk_knob_motion_notify(GtkWidget *widget, GdkEventMotion *event) {
     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:
@@ -605,14 +645,22 @@ gtk_knob_motion_notify(GtkWidget *widget, GdkEventMotion *event) {
 	/* 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;
-	}
+        window = gtk_widget_get_window(widget);
+        if (event->is_hint || (event->window != window)) {
+            GdkModifierType mods;
+            GdkDeviceManager *device_manager = gdk_display_get_device_manager(gdk_window_get_display(window));
+            GdkDevice *pointer = gdk_device_manager_get_client_pointer(device_manager);
+
+            gdk_window_get_device_position(window, pointer, &x, &y, &mods);
+            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;
     }
 
@@ -632,7 +680,7 @@ gtk_knob_timer(GtkKnob *knob) {
     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) {
+    if (knob->policy == GTK_KNOB_UPDATE_DELAYED) {
 	g_signal_emit_by_name (knob->adjustment, "value_changed");
     }
 
@@ -650,13 +698,13 @@ static void
 gtk_knob_update_mouse_update(GtkKnob *knob) {
     g_return_if_fail(GTK_IS_ADJUSTMENT (knob->adjustment));
 
-    if (knob->policy == GTK_UPDATE_CONTINUOUS) {
+    if (knob->policy == GTK_KNOB_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->policy == GTK_KNOB_UPDATE_DELAYED) {
 	    if (knob->timer) {
 		g_source_remove (knob->timer);
 	    }
@@ -675,14 +723,14 @@ gtk_knob_update_mouse_update(GtkKnob *knob) {
  *****************************************************************************/
 static void
 gtk_knob_update_mouse(GtkKnob *knob, gint x, gint y, gboolean step) {
-    gfloat old_value, new_value, dv, dh;
-    gfloat angle;
+    gdouble old_value, new_value, dv, dh;
+    gdouble 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;
+    old_value = gtk_adjustment_get_value(knob->adjustment);
 
     angle = atan2f (-y + (knob->height >> 1), x - (knob->width >> 1));
 
@@ -699,17 +747,17 @@ gtk_knob_update_mouse(GtkKnob *knob, gint x, gint y, gboolean step) {
         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 = gtk_adjustment_get_value(knob->adjustment) +
+                dv * (step ? gtk_adjustment_get_step_increment(knob->adjustment) : gtk_adjustment_get_page_increment(knob->adjustment)) +
+                dh * (gtk_adjustment_get_upper(knob->adjustment) -
+                gtk_adjustment_get_lower(knob->adjustment)) * 0.005; /* 0.005 == (1 / 200) */
 
-    new_value = MAX (MIN (new_value, knob->adjustment->upper),
-                     knob->adjustment->lower);
+    new_value = MAX (MIN (new_value, gtk_adjustment_get_upper(knob->adjustment)),
+                     gtk_adjustment_get_lower(knob->adjustment));
 
-    knob->adjustment->value = new_value;
+    gtk_adjustment_set_value(knob->adjustment, new_value);
 
-    if (knob->adjustment->value != old_value) {
+    if (gtk_adjustment_get_value(knob->adjustment) != old_value) {
         gtk_knob_update_mouse_update (knob);
     }
 }
@@ -722,29 +770,29 @@ gtk_knob_update_mouse(GtkKnob *knob, gint x, gint y, gboolean step) {
  *****************************************************************************/
 static void
 gtk_knob_update(GtkKnob *knob) {
-    gfloat new_value;
+    gdouble 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);
+    if (gtk_adjustment_get_step_increment(knob->adjustment) == 1) {
+	new_value = floor (gtk_adjustment_get_value(knob->adjustment) + 0.5);
     }
     else {
-	new_value = knob->adjustment->value;
+	new_value = gtk_adjustment_get_value(knob->adjustment);
     }
 
-    if (new_value < knob->adjustment->lower) {
-	new_value = knob->adjustment->lower;
+    if (new_value < gtk_adjustment_get_lower(knob->adjustment)) {
+	new_value = gtk_adjustment_get_lower(knob->adjustment);
     }
 
-    if (new_value > knob->adjustment->upper) {
-	new_value = knob->adjustment->upper;
+    if (new_value > gtk_adjustment_get_upper(knob->adjustment)) {
+	new_value = gtk_adjustment_get_upper(knob->adjustment);
     }
 
-    if (new_value != knob->adjustment->value) {
-	knob->adjustment->value = new_value;
+    if (new_value != gtk_adjustment_get_value(knob->adjustment)) {
+	gtk_adjustment_set_value(knob->adjustment, new_value);
 	g_signal_emit_by_name (knob->adjustment, "value_changed");
     }
 
@@ -766,15 +814,15 @@ gtk_knob_adjustment_changed(GtkAdjustment *adjustment, gpointer data) {
 
     knob = GTK_KNOB (data);
 
-    if ((knob->old_value != adjustment->value) ||
-	(knob->old_lower != adjustment->lower) ||
-	(knob->old_upper != adjustment->upper))
+    if ((knob->old_value != gtk_adjustment_get_value(adjustment)) ||
+	(knob->old_lower != gtk_adjustment_get_lower(adjustment)) ||
+	(knob->old_upper != gtk_adjustment_get_upper(adjustment)))
     {
 	gtk_knob_update (knob);
 
-	knob->old_value = adjustment->value;
-	knob->old_lower = adjustment->lower;
-	knob->old_upper = adjustment->upper;
+	knob->old_value = gtk_adjustment_get_value(adjustment);
+	knob->old_lower = gtk_adjustment_get_lower(adjustment);
+	knob->old_upper = gtk_adjustment_get_upper(adjustment);
     }
 }
 
@@ -793,9 +841,9 @@ gtk_knob_adjustment_value_changed (GtkAdjustment *adjustment, gpointer data) {
 
     knob = GTK_KNOB (data);
 
-    if (knob->old_value != adjustment->value) {
+    if (knob->old_value != gtk_adjustment_get_value(adjustment)) {
 	gtk_knob_update (knob);
-	knob->old_value = adjustment->value;
+	knob->old_value = gtk_adjustment_get_value(adjustment);
     }
 }
 
@@ -810,29 +858,31 @@ 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)) {
+    if (gtk_widget_get_realized (GTK_WIDGET(knob))) {
     	gtk_widget_queue_resize (GTK_WIDGET (knob));
     }
 }
 
+/**
+ *  Reads embedded knob image
+ **/
+static cairo_status_t
+get_knob_image(void *closure, unsigned char *data, unsigned int length)
+{
+    int *offset = (int *)closure;
 
-/*****************************************************************************
- *
- * gtk_knob_animation_new_from_file()
- *
- *****************************************************************************/
-GtkKnobAnim *
-gtk_knob_animation_new_from_file(gchar *filename) {
-    GtkKnobAnim *anim;
+    if ((*offset + length) > sizeof (knob_png))
+        return CAIRO_STATUS_READ_ERROR;
 
-    anim = gtk_knob_animation_new_from_file_full (filename, -1, -1, KNOB_SIZE);
-    return anim;
+    memcpy (data, knob_png + *offset, length);
+    *offset = *offset + length;
+
+    return CAIRO_STATUS_SUCCESS;
 }
 
 /*****************************************************************************
@@ -841,68 +891,20 @@ gtk_knob_animation_new_from_file(gchar *filename) {
  *
  *****************************************************************************/
 GtkKnobAnim *
-gtk_knob_animation_new_from_inline(const guint8 *pixbuf) {
+gtk_knob_animation_new_from_inline() {
     GtkKnobAnim *anim = g_new0 (GtkKnobAnim, 1);
+    int offset = 0;
 
-    g_return_val_if_fail((pixbuf != NULL), NULL);
+    anim->image =
+        cairo_image_surface_create_from_png_stream(get_knob_image, &offset);
 
-    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->width       = cairo_image_surface_get_width(anim->image);
+    anim->height      = cairo_image_surface_get_height(anim->image);
     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()
@@ -912,8 +914,8 @@ void
 gtk_knob_animation_free(GtkKnobAnim *anim) {
     g_return_if_fail (anim != NULL);
 
-    if (anim->pixbuf)
-        g_object_unref (anim->pixbuf);
+    if (anim->image)
+        cairo_surface_destroy(anim->image);
 
     g_free (anim);
 }

gtkknob.h

@@ -3,7 +3,7 @@
  * 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
+ * copyright (C) 2007, Tomasz Moń, copyright (C) 2009-2011
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -17,7 +17,8 @@
  *
  * 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.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA.
  *****************************************************************************/
 #ifndef __GTK_KNOB_H__
 #define __GTK_KNOB_H__
@@ -36,17 +37,25 @@ typedef struct _GtkKnob		GtkKnob;
 typedef struct _GtkKnobClass	GtkKnobClass;
 typedef struct _GtkKnobAnim	GtkKnobAnim;
 
+typedef enum
+{
+    GTK_KNOB_UPDATE_CONTINUOUS,
+    GTK_KNOB_UPDATE_DISCONTINUOUS,
+    GTK_KNOB_UPDATE_DELAYED
+} GtkKnobUpdateType;
+
 	/* better to make this an object and let widgets ref/deref it perhaps */
     struct _GtkKnobAnim {
-	GdkPixbuf *pixbuf;
+	cairo_surface_t *image;
 	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;
 
+        GdkWindow *event_window;
 	/* update policy (GTK_UPDATE_[CONTINUOUS/DELAYED/DISCONTINUOUS]) */
 	guint policy : 2;
 
@@ -60,15 +69,11 @@ typedef struct _GtkKnobAnim	GtkKnobAnim;
 	/* 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;
+	gdouble old_value;
+	gdouble old_lower;
+	gdouble old_upper;
 
 	/* The adjustment object that stores the data for this knob */
 	GtkAdjustment *adjustment;
@@ -82,16 +87,11 @@ typedef struct _GtkKnobAnim	GtkKnobAnim;
     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_update_policy(GtkKnob *knob, GtkKnobUpdateType  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_inline();
 
-    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);
 

gui.h

@@ -17,14 +17,20 @@
 #ifndef GDIGI_GUI_H
 #define GDIGI_GUI_H
 
+#include <gtk/gtk.h>
 #include <glib.h>
 #include "effects.h"
 
+gchar * get_preset_filename(int prod_id);
 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);
+gint select_device_dialog (GList *devices);
+const gchar* get_message_name(MessageID msgid);
+void create_modifier_group (guint pos, guint id);
+void modifier_settings_exp_free(EffectSettings *settings);
 
 #endif /* GDIGI_GUI_H */

preset.c

@@ -69,7 +69,7 @@ static void XMLCALL start(void *data, const char *el, const char **attr) {
     if (g_strcmp0(el, "Params") == 0) {
         ad->section = SECTION_PARAMS;
         if (ad->preset->params != NULL)
-            g_message("Params aleady exists!");
+            g_warning("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);
@@ -84,7 +84,7 @@ static void XMLCALL start(void *data, const char *el, const char **attr) {
     } else if (g_strcmp0(el, "Genetx") == 0) {
         ad->section = SECTION_GENETX;
         if (ad->preset->genetxs != NULL)
-            g_message("Genetx already exists!");
+            g_warning("Genetx already exists!");
     } else if (g_strcmp0(el, "GenetxModel") == 0) {
         SettingGenetx *genetx = setting_genetx_new();
         ad->preset->genetxs = g_list_prepend(ad->preset->genetxs, genetx);
@@ -160,7 +160,7 @@ static void XMLCALL text_cb(void *data, const char* text, int len)
                 } else if (g_strcmp0(value, "Version2") == 0) {
                     genetx->version = GENETX_VERSION_2;
                 } else {
-                    g_message("Unknown GeNetX version: %s", value);
+                    g_warning("Unknown GeNetX version: %s", value);
                 }
                 break;
             case PARSER_TYPE_GENETX_TYPE:
@@ -169,7 +169,7 @@ static void XMLCALL text_cb(void *data, const char* text, int len)
                 } else if (g_strcmp0(value, "Cabinet") == 0) {
                     genetx->type = GENETX_TYPE_CABINET;
                 } else {
-                    g_message("Unknown GeNetX type: %s", value);
+                    g_warning("Unknown GeNetX type: %s", value);
                 }
                 break;
             case PARSER_TYPE_GENETX_CHANNEL:
@@ -178,7 +178,7 @@ static void XMLCALL text_cb(void *data, const char* text, int len)
                 } else if (g_strcmp0(value, "Channel2") == 0) {
                     genetx->channel = GENETX_CHANNEL2;
                 } else {
-                    g_message("Unknown GeNetX channel: %s", value);
+                    g_warning("Unknown GeNetX channel: %s", value);
                 }
                 break;
             case PARSER_TYPE_GENETX_NAME:
@@ -219,7 +219,7 @@ Preset *create_preset_from_xml_file(gchar *filename, GError **error)
     gchar *contents;
 
     if (g_file_get_contents(filename, &contents, NULL, &err) == FALSE) {
-        g_message("Failed to get %s contents: %s", filename, err->message);
+        g_warning("Failed to get %s contents: %s", filename, err->message);
         *error = g_error_copy(err);
         g_error_free(err);
         return NULL;
@@ -260,6 +260,21 @@ Preset *create_preset_from_xml_file(gchar *filename, GError **error)
     return preset;
 }
 
+gint params_cmp(gconstpointer a, gconstpointer b)
+{
+    const SettingParam *param_a = a;
+    const SettingParam *param_b = b;
+
+    if (param_a->position != param_b->position) {
+        return (param_a->position > param_b->position) ? 1 : -1;
+    }
+    if (param_a->id != param_b->id) {
+        return (param_a->id > param_b->id) ? 1 : -1;
+    }
+
+    return 0;
+}
+
 /**
  *  \param list list containing unpacked preset SysEx messages.
  *
@@ -293,12 +308,16 @@ Preset *create_preset_from_data(GList *list)
                 modified = (unsigned char)data->str[11+strlen(name)];
 
                 if ((bank == PRESETS_EDIT_BUFFER) && (number == 0)) {
-                    g_message("Received current edit buffer");
+                    debug_msg(DEBUG_MSG2HOST,
+                              "RECEIVE_PRESET_START:  current edit buffer");
                 } else {
-                    g_message("Received preset %d from bank %d", number, bank);
+                    debug_msg(DEBUG_MSG2HOST,
+                              "RECEIVE_PRESET_START: preset %d from bank %d",
+                              number, bank);
                 }
 
-                g_message("Modified flag: %d Name: %s", modified, name);
+                debug_msg(DEBUG_MSG2HOST, "Name: %s, %sodified",
+                                          name, modified ? "M" : "Not m");
                 preset->name = name;
                 break;
             case RECEIVE_PRESET_PARAMETERS:
@@ -311,15 +330,20 @@ Preset *create_preset_from_data(GList *list)
                     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);
+                    if (debug_flag_is_set(DEBUG_MSG2HOST)) {
+                        GString *ipv = format_ipv(param->id, param->position, param->value);
+                        debug_msg(DEBUG_MSG2HOST, "%3d %s", n, ipv->str);
+                        g_string_free(ipv, TRUE);
+                    }
                 } while ((x < data->len) && n<total);
-                g_message("TOTAL %d", total);
-                preset->params = g_list_reverse(preset->params);
+                debug_msg(DEBUG_MSG2HOST, "TOTAL %d", total);
+                preset->params = g_list_sort(preset->params, params_cmp);
                 break;
             case RECEIVE_PRESET_END:
                 break;
             default:
-                g_message("Unhandled message in preset messages list");
+                g_warning("Unhandled message 0x%x in preset messages list",
+                          get_message_id(data));
         }
     }
 

preset.h

@@ -28,5 +28,5 @@ typedef struct {
 Preset *create_preset_from_xml_file(gchar *filename, GError **error);
 Preset *create_preset_from_data(GList *list);
 void preset_free(Preset *preset);
-
+void write_preset_to_xml(Preset *preset, gchar *filename);
 #endif /* GDIGI_PRESET_H */

preset_xml.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 <libxml/encoding.h>
+#include <libxml/xmlreader.h>
+#include <libxml/xmlwriter.h>
+#include <string.h>
+#include "preset.h"
+#include "gdigi.h"
+#include "gui.h"
+#include "gdigi_xml.h"
+
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+// FIXME: Bring the xml settings into this module?
+extern XmlSettings xml_settings[];
+extern guint n_xml_settings;
+extern EffectValues values_on_off;
+
+/**
+ *  \param id modifier ID
+ *  \param position modifier position
+ *
+ *  Gets modifier info.
+ *
+ *  \return Modifier which must not be freed, or NULL if no matching Modifier has been found.
+*/
+XmlSettings *get_xml_settings (guint id, guint position)
+{
+    gint x;
+
+    for (x=0; x< n_xml_settings; x++) {
+        if ((xml_settings[x].id == id) && (xml_settings[x].position == position)) {
+            return xml_settings + x;
+        }
+    }
+
+    return NULL;
+}
+
+gchar *
+map_xml_value (XmlSettings *xml, EffectValues *values,  gint value)
+{
+    switch (values->type) {
+    case VALUE_TYPE_LABEL:
+        if ((values == &values_on_off) && (value > 1)) {
+            g_warning("Skipping modifier->label %s\n", xml->label);
+            return NULL;
+        }   
+
+        if (value > values->max || value < values->min) {
+            g_warning("%s value %d out of range %0.1f %0.1f",
+                      xml->label, value, xml->values->min, xml->values->max);
+        } 
+        {
+            XmlLabel *labels = xml->xml_labels;
+            guint labels_amt = xml->xml_labels_amt;
+            gint i;
+
+            // Maybe this can be a computation: i = xml->values->min + val
+            for (i = 0; i < labels_amt; i++) {
+                if (labels[i].type  == value) {
+                    return (labels[i].label);
+                }
+            }
+        }
+        break;
+
+    default:
+        break;
+    }
+    return NULL;
+}
+
+gboolean value_is_extra (EffectValues *val, int value)
+{
+    if ((value < val->min) || (value > val->max)) {
+        return TRUE;
+    }
+    return FALSE;
+}
+
+#define GDIGI_ENCODING "utf-8"
+void
+write_preset_to_xml(Preset *preset, gchar *filename)
+{
+
+    int rc;
+    xmlTextWriterPtr writer;
+    GList *iter_params = preset->params;
+    guint last_id = 0;
+    guint last_position = 0;
+
+    printf("Creating a new xml doc\n");
+    /* Create a new XmlWriter for uri, with no compression. */
+    writer = xmlNewTextWriterFilename(filename, 0);
+    if (writer == NULL) {
+        printf("testXmlwriterFilename: Error creating the xml writer\n");
+        return;
+    }
+
+    /*
+     * Start the document with the xml default for the version,
+     * encoding and the default for the standalone declaration.
+     */
+    rc = xmlTextWriterStartDocument(writer, NULL, GDIGI_ENCODING, NULL);
+    if (rc < 0) {
+        printf
+            ("testXmlwriterFilename: Error at xmlTextWriterStartDocument\n");
+        return;
+    }
+
+    rc = xmlTextWriterSetIndent(writer, 1);
+    rc = xmlTextWriterSetIndentString(writer, BAD_CAST "  ");
+    /* Write the tag identifying type of prefix, schema version and ns. */
+    rc = xmlTextWriterStartElement(writer, BAD_CAST get_preset_filename(product_id));
+
+    rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "SchemaVersion",
+                                     BAD_CAST "1.2");
+
+
+    rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "xmlns",
+                                     BAD_CAST "http://www.digitech.com/xml/preset");
+
+    /* Write the Name tag. */
+    rc = xmlTextWriterWriteElement(writer, BAD_CAST "Name", BAD_CAST preset->name);
+
+    rc = xmlTextWriterStartElement(writer, BAD_CAST "Params");
+
+    while (iter_params) {
+        XmlSettings *xml;
+        SettingParam *param = (SettingParam *) iter_params->data;
+
+        if (param->id == last_id && param->position == last_position) {
+            g_warning("Skipping duplicate parameter id %d position %d",
+                       last_id, last_position);
+            iter_params  = iter_params->next;
+            continue;
+        }
+
+        rc = xmlTextWriterStartElement(writer, BAD_CAST "Param");
+
+        rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ID",
+                                             "%d", param->id);
+        rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "Position",
+                                             "%d", param->position);
+        rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "Value",
+                                             "%d", param->value);
+
+        last_id = param->id;
+        last_position = param->position;
+        xml  = get_xml_settings(param->id, param->position);
+        if (!xml) {
+            printf("Failed to get xml settings for id %d position %d\n",
+                    param->id, param->position);
+        } else {
+            ValueType type;
+            gchar *suffix = "";
+            gdouble step = 1.0;
+            gint offset = 0;
+            gboolean        decimal = FALSE;
+            EffectValues *values = NULL;
+
+            rc = xmlTextWriterWriteElement(writer, BAD_CAST "Name",
+                                                   BAD_CAST xml->label);
+            values = xml->values;
+            type = values->type;
+            while ((type & VALUE_TYPE_EXTRA) && value_is_extra(values, param->value)) {
+                values = values->extra;
+                type = values->type;
+            }
+            type &= ~VALUE_TYPE_EXTRA;
+
+            if (type & VALUE_TYPE_OFFSET) {
+                offset = values->offset;
+                type &= ~VALUE_TYPE_OFFSET;
+            }
+
+            if (type & VALUE_TYPE_STEP) {
+                step = values->step;
+                type &= ~VALUE_TYPE_STEP;
+            }
+
+            if (type & VALUE_TYPE_SUFFIX) {
+                suffix = values->suffix;
+                type &= ~VALUE_TYPE_SUFFIX;
+            }
+
+            if (type & VALUE_TYPE_DECIMAL) {
+                decimal = TRUE;
+                type &= ~VALUE_TYPE_DECIMAL;
+            }
+
+            switch (type) {
+            case VALUE_TYPE_LABEL:
+            {
+                char *textp = map_xml_value(xml, values, param->value);
+                if (!textp) {
+                    g_warning("Unable to map %s value %d for id %d position %d",
+                              xml->label, param->value, param->id,
+                              param->position);
+                    textp = "";
+                }
+                rc = xmlTextWriterWriteElement(writer, BAD_CAST "Text",
+                                                       BAD_CAST textp);
+                break;
+            }
+
+            case VALUE_TYPE_PLAIN:
+            {
+                if (decimal) {
+                    double value = (param->value + offset) * step;
+                    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "Text",
+                            "%0.2f%s", value, suffix);
+                } else {
+                    gint value = (param->value + offset) * step;
+                    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "Text",
+                            "%d%s", value, suffix);
+                }
+                break;
+
+            }
+            case VALUE_TYPE_NONE:
+                rc = xmlTextWriterStartElement(writer, BAD_CAST "Text");
+                rc = xmlTextWriterEndElement(writer);
+                break;
+
+            default:
+                g_warning("Unhandled value type %d", type);
+                break;
+            }
+        }
+
+        rc = xmlTextWriterEndElement(writer);
+
+        iter_params  = iter_params->next;
+    }
+
+    rc = xmlTextWriterEndDocument(writer);
+    if (rc < 0) {
+        printf("testXmlwriterFilename: Error at xmlTextWriterEndDocument\n");
+        return;
+    }
+
+    xmlFreeTextWriter(writer);
+}
+#endif /* DOXYGEN_SHOULD_SKIP_THIS */