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 extern void     Video_SetCursorPos(short X, short Y);
  22 // TODO: Move out
  23 const char      *gsMouseDevice;
  24  int    giTerminalFD;
  25  int    giScreenWidth;
  26  int    giScreenHeight;
  27
  28 // === GLOBALS ===
  29  int    giMouseFD;
  30
  31 // === CODE ===
  32 int Input_Init(void)
  33 {
  34         tNumValue       num_value;
  35
  36         // Open mouse for RW
  37         giMouseFD = open(gsMouseDevice, 3);
  38
  39         // Set mouse limits
  40         // TODO: Update these if the screen resolution changes
  41         num_value.Num = 0;      num_value.Value = giScreenWidth;
  42         ioctl(giMouseFD, JOY_IOCTL_GETSETAXISLIMIT, &num_value);
  43         num_value.Value = giScreenWidth/2;
  44         ioctl(giMouseFD, JOY_IOCTL_GETSETAXISPOSITION, &num_value);
  45
  46         num_value.Num = 1;      num_value.Value = giScreenHeight;
  47         ioctl(giMouseFD, JOY_IOCTL_GETSETAXISLIMIT, &num_value);
  48         num_value.Value = giScreenHeight/2;
  49         ioctl(giMouseFD, JOY_IOCTL_GETSETAXISPOSITION, &num_value);
  50
  51         return 0;
  52 }
  53
  54 void Input_FillSelect(int *nfds, fd_set *set)
  55 {
  56         if(*nfds < giTerminalFD)        *nfds = giTerminalFD;
  57         if(*nfds < giMouseFD)   *nfds = giMouseFD;
  58         FD_SET(giTerminalFD, set);
  59         FD_SET(giMouseFD, set);
  60 }
  61
  62 void Input_HandleSelect(fd_set *set)
  63 {
  64         if(FD_ISSET(giTerminalFD, set))
  65         {
  66                 uint32_t        codepoint;
  67                 if( read(giTerminalFD, &codepoint, sizeof(codepoint)) != sizeof(codepoint) )
  68                 {
  69                         // oops, error
  70                 }
  71                 // TODO: pass on to message handler
  72                 _SysDebug("Keypress 0x%x", codepoint);
  73         }
  74
  75         if(FD_ISSET(giMouseFD, set))
  76         {
  77                 struct sMouseInfo {
  78                         uint16_t        NAxies;
  79                         uint16_t        NButtons;
  80                         struct sMouseAxis {
  81                                  int16_t        MinValue;
  82                                  int16_t        MaxValue;
  83                                  int16_t        CurValue;
  84                                 uint16_t        CursorPos;
  85                         }       Axies[2];
  86                         uint8_t Buttons[3];
  87                 }       mouseinfo;
  88
  89                 seek(giMouseFD, 0, SEEK_SET);
  90                 if( read(giMouseFD, &mouseinfo, sizeof(mouseinfo)) != sizeof(mouseinfo) )
  91                 {
  92                         // Not a 3 button mouse, oops
  93                         return ;
  94                 }
  95
  96                 // Handle movement
  97                 Video_SetCursorPos( mouseinfo.Axies[0].CursorPos, mouseinfo.Axies[1].CursorPos );
  98
  99
 100                 // TODO: Handle button presses
 101         }
 102 }