From 6cb50e66f3c196a2a4bcc95a419260d6b8c2461f Mon Sep 17 00:00:00 2001
From: Javier <dev.git@javispedro.com>
Date: Thu, 11 Jun 2015 01:16:26 +0200
Subject: experiment with audio/paperreplay data

---
 smartpen.cc | 48 +++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 43 insertions(+), 5 deletions(-)

(limited to 'smartpen.cc')

diff --git a/smartpen.cc b/smartpen.cc
index 6df3fd1..13743ab 100644
--- a/smartpen.cc
+++ b/smartpen.cc
@@ -1,16 +1,20 @@
 #include <QtCore/QDateTime>
 #include <QtCore/QDebug>
+#include <QtCore/QStringList>
 #include <QtCore/QtEndian>
 #include <usb.h>
 #include "xmlutils.h"
 #include "smartpen.h"
 
-#define PEN_EPOCH (1289335960000LL)
+#define PEN_EPOCH (1289335960000LL) // This is probably not correct
 #define PEN_MTU 900
 #define PEN_TIMEOUT_SECONDS 10
 
 #define INVALID_CID 0xFFFFFFFFU
 
+static const char pen_serial_chars[] = "ABCDEFGHJKMNPQRSTUWXYZ23456789";
+static const unsigned int pen_serial_num_chars = sizeof(pen_serial_chars) - 1;
+
 /* Terrible hack comes now: */
 struct obex_usb_intf_transport_t {
 	struct obex_usb_intf_transport_t *prev, *next;	/* Next and previous interfaces in the list */
@@ -155,6 +159,10 @@ QList<Smartpen::ChangeReport> Smartpen::getChangeList(const QDateTime &from)
 					report.guid = attrs.value("guid").toString();
 					report.title = attrs.value("title").toString();
 					result.append(report);
+				} else if (attrs.hasAttribute("classname")) {
+					report.className = attrs.value("classname").toString();
+					report.title = attrs.value("title").toString();
+					result.append(report);
 				}
 				r.skipCurrentElement();
 			} else {
@@ -174,6 +182,11 @@ QByteArray Smartpen::getLspData(const QString &name, const QDateTime &from)
 	return getObject(QString("lspdata?name=%1&start_time=%2").arg(name).arg(toPenTime(from)));
 }
 
+QByteArray Smartpen::getPaperReplay(const QDateTime &from)
+{
+	return getObject(QString("lspdata?name=com.livescribe.paperreplay.PaperReplay&start_time=%1&returnVersion=0.3&remoteCaller=WIN_LD_200").arg(toPenTime(from)));
+}
+
 qint64 Smartpen::toPenTime(const QDateTime &dt)
 {
 	if (dt.isValid()) {
@@ -208,6 +221,19 @@ QString Smartpen::toPenSerial(quint64 id)
 	return serial;
 }
 
+quint64 Smartpen::toPenId(const QString &serial)
+{
+	QStringList segments = serial.split('-');
+	if (segments.size() != 4) {
+		return 0;
+	}
+
+	quint64 id = quint64(fromPenSerialSegment(segments[0])) << 32;
+	id |= fromPenSerialSegment(segments[1] + segments[2]) * 0x36D;
+	id |= fromPenSerialSegment(segments[3]);
+	return id;
+}
+
 bool Smartpen::connectToPen(const Address &addr)
 {
 	if (_obex) {
@@ -389,19 +415,31 @@ void Smartpen::handleObexRequestDone(obex_object_t *object, int obex_cmd, int ob
 
 QString Smartpen::toPenSerialSegment(quint32 id, int len)
 {
-	static const char chars[] = "ABCDEFGHJKMNPQRSTUWXYZ23456789";
-	static const unsigned int num_chars = sizeof(chars) - 1;
 
 	QString segment(len, Qt::Uninitialized);
 
 	for (int i = 0; i < len; i++) {
-		segment[len - (i + 1)] = chars[id % num_chars];
-		id /= num_chars;
+		segment[len - (i + 1)] = pen_serial_chars[id % pen_serial_num_chars];
+		id /= pen_serial_num_chars;
 	}
 
 	return segment;
 }
 
+quint32 Smartpen::fromPenSerialSegment(const QString &s)
+{
+	const int len = s.length();
+	quint32 id = 0;
+
+	for (int i = 0; i < len; i++) {
+		uint val = qFind(&pen_serial_chars[0], &pen_serial_chars[pen_serial_num_chars], s[i]) - &pen_serial_chars[0];
+		if (val >= pen_serial_num_chars) return 0;
+		id = val + id * pen_serial_num_chars;
+	}
+
+	return id;
+}
+
 QByteArray Smartpen::encodeUtf16(const QString &s)
 {
 	const int size = s.size();
-- 
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