Usermode/Applications/axwin3_src/WM/input.c

   1 /*
   2  * Acess2 GUI (AxWin) Version 3
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * input.c
   6  * - Input abstraction
   7  */
   8 #include <common.h>
   9 #include <acess/sys.h>
  10
  11 // TODO: Move out to a common header
  12 typedef struct
  13 {
  14         int Num;
  15         int Value;
  16 } tNumValue;
  17 #define JOY_IOCTL_GETSETAXISLIMIT       6
  18 #define JOY_IOCTL_GETSETAXISPOSITION    7
  19
  20 // === IMPORTS ===
  21 // TODO: Move out
  22 const char      *gsMouseDevice;
  23  int    giTerminalFD;
  24  int    giScreenWidth;
  25  int    giScreenHeight;
  26
  27 // === GLOBALS ===
  28  int    giMouseFD;
  29
  30 // === CODE ===
  31 int Input_Init(void)
  32 {
  33         tNumValue       num_value;
  34
  35         // Open mouse for RW
  36         giMouseFD = open(gsMouseDevice, 3);
  37
  38         // Set mouse limits
  39         // TODO: Update these if the screen resolution changes
  40         num_value.Num = 0;      num_value.Value = giScreenWidth;
  41         ioctl(giMouseFD, JOY_IOCTL_GETSETAXISLIMIT, &num_value);
  42         num_value.Value = giScreenWidth/2;
  43         ioctl(giMouseFD, JOY_IOCTL_GETSETAXISPOSITION, &num_value);
  44
  45         num_value.Num = 1;      num_value.Value = giScreenHeight;
  46         ioctl(giMouseFD, JOY_IOCTL_GETSETAXISLIMIT, &num_value);
  47         num_value.Value = giScreenHeight/2;
  48         ioctl(giMouseFD, JOY_IOCTL_GETSETAXISPOSITION, &num_value);
  49
  50         return 0;
  51 }
  52
  53 void Input_FillSelect(int *nfds, fd_set *set)
  54 {
  55         if(*nfds < giTerminalFD)        *nfds = giTerminalFD;
  56         if(*nfds < giMouseFD)   *nfds = giMouseFD;
  57         FD_SET(giTerminalFD, set);
  58         FD_SET(giMouseFD, set);
  59 }
  60
  61 void Input_HandleSelect(fd_set *set)
  62 {
  63         if(FD_ISSET(giTerminalFD, set))
  64         {
  65                 uint32_t        codepoint;
  66                 if( read(giTerminalFD, &codepoint, sizeof(codepoint)) != sizeof(codepoint) )
  67                 {
  68                         // oops, error
  69                 }
  70                 // TODO: pass on to message handler
  71                 _SysDebug("Keypress 0x%x", codepoint);
  72         }
  73
  74         if(FD_ISSET(giMouseFD, set))
  75         {
  76                 struct sMouseInfo {
  77                         uint16_t        NAxies;
  78                         uint16_t        NButtons;
  79                         struct sMouseAxis {
  80                                  int16_t        MinValue;
  81                                  int16_t        MaxValue;
  82                                  int16_t        CurValue;
  83                                 uint16_t        CursorPos;
  84                         }       Axies[2];
  85                         uint8_t Buttons[3];
  86                 }       mouseinfo;
  87
  88                 seek(giMouseFD, 0, SEEK_SET);
  89                 if( read(giMouseFD, &mouseinfo, sizeof(mouseinfo)) != sizeof(mouseinfo) )
  90                 {
  91                         // Not a 3 button mouse, oops
  92                         return ;
  93                 }
  94
  95                 // Handle movement
  96                 Video_SetCursorPos( mouseinfo.Axies[0].CursorPos, mouseinfo.Axies[1].CursorPos );
  97
  98
  99                 // TODO: Handle button presses
 100         }
 101 }