1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
Index: qt-2.3.10-snapshot-20060120/src/kernel/qwsmouse_qws.cpp
===================================================================
--- qt-2.3.10-snapshot-20060120.orig/src/kernel/qwsmouse_qws.cpp 2006-01-20 21:02:45.087469496 +0100
+++ qt-2.3.10-snapshot-20060120/src/kernel/qwsmouse_qws.cpp 2006-01-20 21:08:58.697672112 +0100
@@ -14,10 +14,6 @@
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
-** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
-** licenses for Qt/Embedded may use this file in accordance with the
-** Qt Embedded Commercial License Agreement provided with the Software.
-**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
@@ -30,6 +26,12 @@
**
**********************************************************************/
+/*
+ * The 5 point algorithim in QTSLibHandlerPrivate::calibrate() is
+ * GPL only code and Copyright (C) 2001 Russel King.
+ *
+ * Taken from ts_calibrate.c from tslib
+ */
#include "qwindowsystem_qws.h"
#include "qsocketnotifier.h"
#include "qwsevent_qws.h"
@@ -1810,6 +1812,7 @@
void QTSLibHandlerPrivate::calibrate( QWSPointerCalibrationData * cd)
{
+#ifdef ORIG_CALIBRATE
QPoint dev_tl = cd->devPoints[ QWSPointerCalibrationData::TopLeft ];
QPoint dev_br = cd->devPoints[ QWSPointerCalibrationData::BottomRight ];
QPoint screen_tl = cd->screenPoints[ QWSPointerCalibrationData::TopLeft ];
@@ -1840,6 +1843,122 @@
{
qDebug( "Could not save calibration: %s", calFile.latin1() );
}
+
+#else
+ int j;
+ float n, x, y, x2, y2, xy, z, zx, zy;
+ float det, cal_a, cal_b, cal_c, cal_d, cal_e, cal_f, cal_i;
+ float scaling = 65536.0;
+ int cal_x[5], cal_xfb[5], cal_y[5], cal_yfb[5], cal_o[7];
+
+ cal_x[0]=cd->devPoints[ QWSPointerCalibrationData::TopLeft ].x();
+ cal_y[0]=cd->devPoints[ QWSPointerCalibrationData::TopLeft ].y();
+ cal_x[1]=cd->devPoints[ QWSPointerCalibrationData::TopRight ].x();
+ cal_y[1]=cd->devPoints[ QWSPointerCalibrationData::TopRight ].y();
+ cal_x[2]=cd->devPoints[ QWSPointerCalibrationData::BottomLeft ].x();
+ cal_y[2]=cd->devPoints[ QWSPointerCalibrationData::BottomLeft ].y();
+ cal_x[3]=cd->devPoints[ QWSPointerCalibrationData::BottomRight ].x();
+ cal_y[3]=cd->devPoints[ QWSPointerCalibrationData::BottomRight ].y();
+ cal_x[4]=cd->devPoints[ QWSPointerCalibrationData::Center ].x();
+ cal_y[4]=cd->devPoints[ QWSPointerCalibrationData::Center ].y();
+
+ cal_xfb[0]=cd->screenPoints[ QWSPointerCalibrationData::TopLeft ].x();
+ cal_yfb[0]=cd->screenPoints[ QWSPointerCalibrationData::TopLeft ].y();
+ cal_xfb[1]=cd->screenPoints[ QWSPointerCalibrationData::TopRight ].x();
+ cal_yfb[1]=cd->screenPoints[ QWSPointerCalibrationData::TopRight ].y();
+ cal_xfb[2]=cd->screenPoints[ QWSPointerCalibrationData::BottomLeft ].x();
+ cal_yfb[2]=cd->screenPoints[ QWSPointerCalibrationData::BottomLeft ].y();
+ cal_xfb[3]=cd->screenPoints[ QWSPointerCalibrationData::BottomRight ].x();
+ cal_yfb[3]=cd->screenPoints[ QWSPointerCalibrationData::BottomRight ].y();
+ cal_xfb[4]=cd->screenPoints[ QWSPointerCalibrationData::Center ].x();
+ cal_yfb[4]=cd->screenPoints[ QWSPointerCalibrationData::Center ].y();
+
+ //qDebug("Top left : X = %4d Y = %4d", cal_x[0], cal_y[0]);
+ //qDebug("Top right: X = %4d Y = %4d", cal_x[1], cal_y[1]);
+ //qDebug("Bot left : X = %4d Y = %4d", cal_x[2], cal_y[2]);
+ //qDebug("Bot right: X = %4d Y = %4d", cal_x[3], cal_y[3]);
+ //qDebug("Middle: X = %4d Y = %4d", cal_x[4], cal_y[4]);
+
+ // Get sums for matrix
+ n = x = y = x2 = y2 = xy = 0;
+ for(j=0;j<5;j++) {
+ n += 1.0;
+ x += (float)cal_x[j];
+ y += (float)cal_y[j];
+ x2 += (float)(cal_x[j]*cal_x[j]);
+ y2 += (float)(cal_y[j]*cal_y[j]);
+ xy += (float)(cal_x[j]*cal_y[j]);
+ }
+
+ // Get determinant of matrix -- check if determinant is too small
+ det = n*(x2*y2 - xy*xy) + x*(xy*y - x*y2) + y*(x*xy - y*x2);
+ if(det < 0.1 && det > -0.1) {
+ qDebug("determinant is too small -- %f",det);
+ return;// false;
+ }
+
+ // Get elements of inverse matrix
+ cal_a = (x2*y2 - xy*xy)/det;
+ cal_b = (xy*y - x*y2)/det;
+ cal_c = (x*xy - y*x2)/det;
+ cal_e = (n*y2 - y*y)/det;
+ cal_f = (x*y - n*xy)/det;
+ cal_i = (n*x2 - x*x)/det;
+
+ // Get sums for x calibration
+ z = zx = zy = 0;
+ for(j=0;j<5;j++) {
+ z += (float)cal_xfb[j];
+ zx += (float)(cal_xfb[j]*cal_x[j]);
+ zy += (float)(cal_xfb[j]*cal_y[j]);
+ }
+
+ // Now multiply out to get the calibration for framebuffer x coord
+ cal_o[0] = (int)((cal_a*z + cal_b*zx + cal_c*zy)*(scaling));
+ cal_o[1] = (int)((cal_b*z + cal_e*zx + cal_f*zy)*(scaling));
+ cal_o[2] = (int)((cal_c*z + cal_f*zx + cal_i*zy)*(scaling));
+
+ qDebug("%f %f %f",(cal_a*z + cal_b*zx + cal_c*zy), (cal_b*z + cal_e*zx + cal_f*zy), (cal_c*z + cal_f*zx + cal_i*zy));
+
+ // Get sums for y calibration
+ z = zx = zy = 0;
+ for (j=0;j<5;j++) {
+ z += (float)cal_yfb[j];
+ zx += (float)(cal_yfb[j]*cal_x[j]);
+ zy += (float)(cal_yfb[j]*cal_y[j]);
+ }
+
+ // Now multiply out to get the calibration for framebuffer y coord
+ cal_o[3] = (int)((cal_a*z + cal_b*zx + cal_c*zy)*(scaling));
+ cal_o[4] = (int)((cal_b*z + cal_e*zx + cal_f*zy)*(scaling));
+ cal_o[5] = (int)((cal_c*z + cal_f*zx + cal_i*zy)*(scaling));
+
+ qDebug("%f %f %f",(cal_a*z + cal_b*zx + cal_c*zy), (cal_b*z + cal_e*zx + cal_f*zy), (cal_c*z + cal_f*zx + cal_i*zy));
+
+
+ // If we got here, we're OK, so assign scaling to a[6] and return
+ cal_o[6] = (int) scaling;
+
+ qDebug("Calibration constants: %d %d %d %d %d %d %d",
+ cal_o[0], cal_o[1], cal_o[2],
+ cal_o[3], cal_o[4], cal_o[5],
+ cal_o[6]);
+
+ QString calFile = "/etc/pointercal";
+#ifndef QT_NO_TEXTSTREAM
+ QFile file( calFile );
+ if ( file.open( IO_WriteOnly ) ) {
+ QTextStream t( &file );
+ t << cal_o[1] << " " << cal_o[2] << " " << cal_o[0] << " ";
+ t << cal_o[4] << " " << cal_o[5] << " " << cal_o[3] << " " << cal_o[6];
+ file.flush(); closeTs();
+ openTs();
+ } else
+#endif
+ {
+ qDebug( "Could not save calibration: %s", calFile.latin1() );
+ }
+#endif
}
void QTSLibHandlerPrivate::readMouseData()
|
