1 /*
2 (c) Copyright 2001-2009 The world wide DirectFB Open Source Community (directfb.org)
3 (c) Copyright 2000-2004 Convergence (integrated media) GmbH
4
5 All rights reserved.
6
7 Written by Nikita Egorov <nikego@gmail.com>
8
9 Calibration utility for PenMount's touchscreen panel. Run the program
10 and touch to center of left/top cross ( active cross is blinked ).
11 Then touch to right/bottom cross. The program will create four values for
12 penmout's driver. The values will be printed to the console.
13
14 This file is subject to the terms and conditions of the MIT License:
15
16 Permission is hereby granted, free of charge, to any person
17 obtaining a copy of this software and associated documentation
18 files (the "Software"), to deal in the Software without restriction,
19 including without limitation the rights to use, copy, modify, merge,
20 publish, distribute, sublicense, and/or sell copies of the Software,
21 and to permit persons to whom the Software is furnished to do so,
22 subject to the following conditions:
23
24 The above copyright notice and this permission notice shall be
25 included in all copies or substantial portions of the Software.
26
27 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
28 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
30 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
31 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
32 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
33 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 */
35
36 #include <directfb.h>
37
38 #include <time.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <unistd.h>
42 #include <sys/types.h>
43 #include <fcntl.h>
44 #include <string.h>
45
46 static IDirectFB *dfb;
47 static IDirectFBSurface *primary;
48 static IDirectFBEventBuffer *buffer;
49 static int sx,sy;
50
51 int
main(int argc,char * argv[])52 main( int argc, char *argv[] )
53 {
54 int quit = 0;
55 DFBResult err;
56 DFBGraphicsDeviceDescription gdesc;
57
58 char init_str[64];
59 const char* dev = "/dev/ttyS0";
60 char buf[4096]={0};
61
62 char *home = getenv( "HOME" );
63 int file;
64
65 int leftx, topy, rightx, bottomy, ofs;
66 int mouse_x, mouse_y, tx1, ty1;
67 int touch, count, color;
68 struct timespec rqtp,rmtp;
69
70 if(home)
71 sprintf(init_str,"%s/.directfbrc",home);
72 else
73 strcpy(init_str,"root/.directfbrc");
74
75 file = open ( init_str, O_RDONLY );
76 if ( file != -1 ){
77 char *pos, *pos2;
78 read(file, buf, sizeof(buf));
79 close(file);
80
81 pos = strstr( buf, "penmount-device" );
82 if(pos){
83 pos = strchr(pos,'=');
84 if(pos){
85 *pos++ = '\0';
86 if( (pos2=strchr(pos,':'))||(pos2=strchr(pos,'\n')) )
87 *pos2 = '\0';
88 dev = pos;
89 }
90 }
91 }
92 printf( "penmount device '%s'\n", dev );
93
94 sprintf( init_str,"--dfb:penmount-device=%s:raw", dev);
95 argv[argc++] = init_str;
96
97 if (DirectFBInit( &argc, &argv ) != DFB_OK)
98 return 1;
99
100 if (DirectFBCreate( &dfb ) != DFB_OK)
101 return 1;
102
103 dfb->GetDeviceDescription( dfb, &gdesc );
104
105 err = dfb->SetCooperativeLevel( dfb, DFSCL_FULLSCREEN );
106 if (err != DFB_OK)
107 DirectFBError( "Failed requesting exclusive access", err );
108
109 err = dfb->CreateInputEventBuffer( dfb, DICAPS_ALL, DFB_FALSE, &buffer );
110 if (err != DFB_OK) {
111 DirectFBError( "CreateInputEventBuffer failed", err );
112 dfb->Release( dfb );
113 return 1;
114 }
115
116 {
117 DFBSurfaceDescription dsc;
118
119 dsc.flags = DSDESC_CAPS;
120 dsc.caps = (gdesc.drawing_flags & DSDRAW_BLEND) ?
121 DSCAPS_PRIMARY | DSCAPS_FLIPPING :
122 DSCAPS_PRIMARY | DSCAPS_FLIPPING | DSCAPS_SYSTEMONLY;
123
124 err = dfb->CreateSurface( dfb, &dsc, &primary );
125 if (err != DFB_OK) {
126 DirectFBError( "Failed creating primary surface", err );
127 buffer->Release( buffer );
128 dfb->Release( dfb );
129 return 1;
130 }
131
132 primary->GetSize( primary, &sx, &sy );
133 }
134
135 primary->Clear( primary, 0x0, 0x0, 0x0, 0xFF );
136
137 leftx = sx/10;
138 topy = sy/10;
139 rightx = sx*9/10;
140 bottomy = sy*9/10;
141 ofs = 10;
142
143 primary->SetColor( primary,0xFF,0,0,0xFF );
144 primary->DrawLine( primary,rightx-ofs,bottomy,rightx+ofs,bottomy );
145 primary->DrawLine( primary,rightx,bottomy-ofs,rightx,bottomy+ofs );
146
147 err = primary->Flip( primary, NULL, 0 );
148 if (err != DFB_OK) {
149 DirectFBError( "Failed flipping the primary surface", err );
150 primary->Release( primary );
151 buffer->Release( buffer );
152 dfb->Release( dfb );
153 return 1;
154 }
155
156 mouse_x=0,mouse_y=0,tx1=0,ty1=0;
157 touch=0,count=0,color=0;
158
159 while (!quit) {
160 DFBInputEvent evt;
161 rqtp.tv_nsec = 10000;
162 rqtp.tv_sec = 0;
163 nanosleep( &rqtp,&rmtp );
164 if (count++ >= 30){
165 count = 0;
166 color = !color;
167 if (color)
168 primary->SetColor( primary,0x00,0xFF,0,0xFF );
169 else
170 primary->SetColor( primary,0xFF,0x00,0,0xFF );
171
172 switch(touch){
173 case 0:
174 primary->DrawLine( primary,leftx-ofs,topy,leftx+ofs,topy );
175 primary->DrawLine( primary,leftx,topy-ofs,leftx,topy+ofs );
176 break;
177 case 1:
178 primary->DrawLine( primary,rightx-ofs,bottomy,rightx+ofs,bottomy );
179 primary->DrawLine( primary,rightx,bottomy-ofs,rightx,bottomy+ofs );
180 break;
181 }
182 primary->Flip( primary, NULL, 0 );
183 }
184
185 while (buffer->GetEvent( buffer, DFB_EVENT(&evt) ) == DFB_OK) {
186 if ( evt.type == DIET_AXISMOTION){
187 if (evt.flags & DIEF_AXISABS) {
188 switch (evt.axis) {
189 case DIAI_X:
190 mouse_x = evt.axisabs;
191 break;
192 case DIAI_Y:
193 mouse_y = evt.axisabs;
194 break;
195 default:
196 break;
197 }
198 }
199 }
200 if ( evt.type == DIET_BUTTONPRESS ){
201 switch(++touch){
202 case 1: //save first touchscreen position
203 tx1=mouse_x;
204 ty1=mouse_y;
205 break;
206 case 2://build new calibration values and quit
207 {
208 float dx = ((float)mouse_x-tx1)/(rightx-leftx);
209 float dy = ((float)mouse_y-ty1)/(bottomy-topy);
210 printf( "Insert followed values into source code of penmount's driver\n'inputdrivers/penmount/penmount.c:96,99' and rebuild:\n" );
211 printf( "min_x=%d min_y=%d\n",(int)(tx1-leftx*dx+.5),(int)(ty1-topy*dy+.5));
212 printf( "max_x=%d max_y=%d\n",(int)(mouse_x+leftx*dx+.5),(int)(mouse_y+topy*dy+.5));
213 quit = 1;
214 break;
215 }
216 }
217 }
218 if (evt.type == DIET_KEYPRESS && evt.key_id == DIKI_ESCAPE)
219 quit = 1;
220 }
221 }
222 primary->Release( primary );
223 buffer->Release( buffer );
224 dfb->Release( dfb );
225
226 return 0;
227 }
228
229