Mercurial > sdl-ios-xcode

annotate src/video/x11/SDL_eventtouch.c @ 4669:62e6a6e9720b

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Fixed x11 compile bugs.
author jimtla
date Thu, 22 Jul 2010 08:12:28 +0400
parents eea1bf53effa
children f8431f66613d
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
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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
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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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 #ifdef HAVE_LINUX_INPUT_H
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28 #include <linux/input.h>
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29 #include <fcntl.h>
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30 #endif
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31
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32 void
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33 X11_InitTouch(_THIS)
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34 {
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35 #ifdef HAVE_LINUX_INPUT_H
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36 printf("Initializing touch...\n");
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37
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38 FILE *fd;
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39 fd = fopen("/proc/bus/input/devices","r");
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40
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41 char c;
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42 int i = 0;
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43 char line[256];
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44 char tstr[256];
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45 int vendor = -1,product = -1,event = -1;
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46 while(!feof(fd)) {
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47 if(fgets(line,256,fd) <=0) continue;
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48 //printf("%s",line);
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49 if(line[0] == '\n') {
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50 if(vendor == 1386){
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51 printf("Wacom... Assuming it is a touch device\n");
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52 sprintf(tstr,"/dev/input/event%i",event);
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53 printf("At location: %s\n",tstr);
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54
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55 SDL_Touch touch;
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56 touch.pressure_max = 0;
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57 touch.pressure_min = 0;
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58 touch.id = event;
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59
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60
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61
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62
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63
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64 touch.driverdata = SDL_malloc(sizeof(EventTouchData));
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65 EventTouchData* data = (EventTouchData*)(touch.driverdata);
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66 printf("Opening device...\n");
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67 //printf("New Touch - DataPtr: %i\n",data);
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68 data->eventStream = open(tstr,
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69 O_RDONLY | O_NONBLOCK);
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70 ioctl (data->eventStream, EVIOCGNAME (sizeof (tstr)), tstr);
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71 printf ("Reading From : %s\n", tstr);
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72
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73
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74
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75 int abs[5];
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76 ioctl(data->eventStream,EVIOCGABS(0),abs);
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77 touch.x_min = abs[1];
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78 touch.x_max = abs[2];
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79 touch.xres = touch.x_max - touch.x_min;
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80 ioctl(data->eventStream,EVIOCGABS(ABS_Y),abs);
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81 touch.y_min = abs[1];
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82 touch.y_max = abs[2];
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83 touch.yres = touch.y_max - touch.y_min;
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84 ioctl(data->eventStream,EVIOCGABS(ABS_PRESSURE),abs);
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85 touch.pressure_min = abs[1];
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86 touch.pressure_max = abs[2];
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87 touch.pressureres = touch.pressure_max - touch.pressure_min;
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88
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89
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90 SDL_AddTouch(&touch, tstr);
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91
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92 }
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93 vendor = -1;
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94 product = -1;
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95 event = -1;
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96 }
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97 else if(line[0] == 'I') {
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98 i = 1;
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99 while(line[i]) {
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100 sscanf(&line[i],"Vendor=%x",&vendor);
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101 sscanf(&line[i],"Product=%x",&product);
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102 i++;
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103 }
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104 }
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105 else if(line[0] == 'H') {
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106 i = 1;
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107 while(line[i]) {
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108 sscanf(&line[i],"event%d",&event);
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109 i++;
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110 }
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111 }
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112 }
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113
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114 close(fd);
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115 #endif
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116 }
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117
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118 void
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119 X11_QuitTouch(_THIS)
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120 {
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121 SDL_TouchQuit();
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122 }
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123
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124 /* vi: set ts=4 sw=4 expandtab: */