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annotate src/video/x11/SDL_eventtouch.c @ 4683:15dfe42edbfd

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Fixed gestureMulti. Disabled dollar gesture temporarily.
author Jim Grandpre <jim.tla@gmail.com>
date Wed, 04 Aug 2010 23:17:30 -0400
parents 5378f2d0754f
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
0375d020e7e3 Auto-detects Wacom touch devices.
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
0375d020e7e3 Auto-detects Wacom touch devices.
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
0375d020e7e3 Auto-detects Wacom touch devices.
Jim Grandpre <jim.tla@gmail.com>
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23 #include "SDL_x11video.h"
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24 #include "SDL_eventtouch.h"
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25 #include "../../events/SDL_touch_c.h"
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26
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27
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28 #ifdef SDL_INPUT_LINUXEV
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29 #include <linux/input.h>
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30 #include <fcntl.h>
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62e6a6e9720b Fixed x11 compile bugs.
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31 #endif
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32
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33 void
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34 X11_InitTouch(_THIS)
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35 {
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36 #ifdef SDL_INPUT_LINUXEV
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37 printf("Initializing touch...\n");
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38
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39 FILE *fd;
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40 fd = fopen("/proc/bus/input/devices","r");
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41
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42 char c;
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43 int i = 0;
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44 char line[256];
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45 char tstr[256];
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46 int vendor = -1,product = -1,event = -1;
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47 while(!feof(fd)) {
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48 if(fgets(line,256,fd) <=0) continue;
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49 //printf("%s",line);
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50 if(line[0] == '\n') {
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51 if(vendor == 1386){
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52 printf("Wacom... Assuming it is a touch device\n");
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53 sprintf(tstr,"/dev/input/event%i",event);
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54 printf("At location: %s\n",tstr);
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55
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56 SDL_Touch touch;
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57 touch.pressure_max = 0;
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58 touch.pressure_min = 0;
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59 touch.id = event;
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60
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61
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62 touch.driverdata = SDL_malloc(sizeof(EventTouchData));
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63 EventTouchData* data = (EventTouchData*)(touch.driverdata);
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15dfe42edbfd Fixed gestureMulti. Disabled dollar gesture temporarily.
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64
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65 data->x = -1;
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66 data->y = -1;
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67 data->pressure = -1;
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68 data->finger = 0;
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69 data->up = SDL_FALSE;
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70
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71
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72 printf("Opening device...\n");
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73 //printf("New Touch - DataPtr: %i\n",data);
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74 data->eventStream = open(tstr,
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75 O_RDONLY | O_NONBLOCK);
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76 ioctl (data->eventStream, EVIOCGNAME (sizeof (tstr)), tstr);
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77 printf ("Reading From : %s\n", tstr);
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78
eea1bf53effa Added include/touch.h Now reading in resolution of touch pad.
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79
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80
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81 int abs[5];
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82 ioctl(data->eventStream,EVIOCGABS(0),abs);
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83 touch.x_min = abs[1];
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84 touch.x_max = abs[2];
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85 touch.native_xres = touch.x_max - touch.x_min;
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86 ioctl(data->eventStream,EVIOCGABS(ABS_Y),abs);
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87 touch.y_min = abs[1];
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88 touch.y_max = abs[2];
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89 touch.native_yres = touch.y_max - touch.y_min;
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90 ioctl(data->eventStream,EVIOCGABS(ABS_PRESSURE),abs);
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91 touch.pressure_min = abs[1];
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92 touch.pressure_max = abs[2];
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93 touch.native_pressureres = touch.pressure_max - touch.pressure_min;
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94
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95 SDL_AddTouch(&touch, tstr);
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96 }
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97 vendor = -1;
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98 product = -1;
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99 event = -1;
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100 }
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101 else if(line[0] == 'I') {
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102 i = 1;
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103 while(line[i]) {
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104 sscanf(&line[i],"Vendor=%x",&vendor);
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105 sscanf(&line[i],"Product=%x",&product);
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106 i++;
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107 }
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108 }
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109 else if(line[0] == 'H') {
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110 i = 1;
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111 while(line[i]) {
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112 sscanf(&line[i],"event%d",&event);
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113 i++;
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114 }
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115 }
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116 }
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117
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118 close(fd);
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119 #endif
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120 }
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121
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122 void
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123 X11_QuitTouch(_THIS)
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124 {
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125 SDL_TouchQuit();
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126 }
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127
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128 /* vi: set ts=4 sw=4 expandtab: */