Usermode/Applications/axwin4_src/Server/input.cpp

   1 /*
   2  * Acess2 GUI v4
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * input.cpp
   6  * - Input
   7  */
   8 #include <CConfigInput.hpp>
   9 #include <input.hpp>
  10 #include <CCompositor.hpp>
  11 #include <algorithm>
  12 #include <acess/devices/joystick.h>
  13 #include <cerrno>
  14 #include <system_error>
  15
  16 namespace AxWin {
  17
  18 CInput::CInput(const ::AxWin::CConfigInput& config, CCompositor& compositor):
  19         m_compositor(compositor),
  20         m_keyboardFD(0),
  21         m_mouseFD(-1)
  22 {
  23         m_mouseFD = _SysOpen(config.mouse_device.c_str(), OPENFLAG_READ|OPENFLAG_WRITE);
  24         if( m_mouseFD == -1 )
  25                 throw ::std::system_error(errno, ::std::system_category());
  26 }
  27
  28 int CInput::FillSelect(::fd_set& rfds)
  29 {
  30         FD_SET(m_keyboardFD, &rfds);
  31         if( m_mouseFD != -1 )
  32                 FD_SET(m_mouseFD, &rfds);
  33         return ::std::max(m_keyboardFD, m_mouseFD)+1;
  34 }
  35
  36 void CInput::HandleSelect(::fd_set& rfds)
  37 {
  38         if( FD_ISSET(m_keyboardFD, &rfds) )
  39         {
  40                 uint32_t        codepoint;
  41                 static uint32_t scancode;
  42                 #define KEY_CODEPOINT_MASK      0x3FFFFFFF
  43
  44                 size_t readlen = _SysRead(m_keyboardFD, &codepoint, sizeof(codepoint));
  45                 if( readlen != sizeof(codepoint) )
  46                 {
  47                         // oops, error
  48                         _SysDebug("Terminal read failed? (%i != %i)", readlen, sizeof(codepoint));
  49                 }
  50
  51 //              _SysDebug("Keypress 0x%x", codepoint);
  52
  53                 switch(codepoint & 0xC0000000)
  54                 {
  55                 case 0x00000000:        // Key pressed
  56                         //WM_Input_KeyDown(codepoint & KEY_CODEPOINT_MASK, scancode);
  57                 case 0x80000000:        // Key release
  58                         //WM_Input_KeyFire(codepoint & KEY_CODEPOINT_MASK, scancode);
  59                         scancode = 0;
  60                         break;
  61                 case 0x40000000:        // Key refire
  62                         //WM_Input_KeyUp(codepoint & KEY_CODEPOINT_MASK, scancode);
  63                         scancode = 0;
  64                         break;
  65                 case 0xC0000000:        // Raw scancode
  66                         scancode = codepoint & KEY_CODEPOINT_MASK;
  67                         break;
  68                 }
  69         }
  70
  71         if( m_mouseFD != -1 && FD_ISSET(m_mouseFD, &rfds) )
  72         {
  73                 // TODO: Read mouse event and handle
  74                 const int c_n_axies = 4;
  75                 const int c_n_buttons = 5;
  76                 struct mouse_axis       *axies;
  77                 uint8_t *buttons;
  78
  79                 char data[sizeof(struct mouse_header) + sizeof(*axies)*c_n_axies + c_n_buttons];
  80                 struct mouse_header     *mouseinfo = (struct mouse_header*)data;
  81
  82                 _SysSeek(m_mouseFD, 0, SEEK_SET);
  83                 int len = _SysRead(m_mouseFD, data, sizeof(data));
  84                 if( len < 0 )
  85                         throw ::std::system_error(errno, ::std::system_category());
  86
  87                 len -= sizeof(*mouseinfo);
  88                 if( len < 0 ) {
  89                         _SysDebug("Mouse data undersized (%i bytes short on header)", len);
  90                         return ;
  91                 }
  92                 if( mouseinfo->NAxies > c_n_axies || mouseinfo->NButtons > c_n_buttons ) {
  93                         _SysDebug("%i axies, %i buttons above prealloc counts (%i, %i)",
  94                                 mouseinfo->NAxies, mouseinfo->NButtons, c_n_axies, c_n_buttons
  95                                 );
  96                         return ;
  97                 }
  98                 if( len < sizeof(*axies)*mouseinfo->NAxies + mouseinfo->NButtons ) {
  99                         _SysDebug("Mouse data undersized (body doesn't fit %i < %i)",
 100                                 len, sizeof(*axies)*mouseinfo->NAxies + mouseinfo->NButtons
 101                                 );
 102                         return ;
 103                 }
 104
 105                 // What? No X/Y?
 106                 if( mouseinfo->NAxies < 2 ) {
 107                         _SysDebug("Mouse data lacks X/Y");
 108                         return ;
 109                 }
 110
 111                 axies = (struct mouse_axis*)( mouseinfo + 1 );
 112                 buttons = (uint8_t*)( axies + mouseinfo->NAxies );
 113
 114                 m_compositor.MouseMove(0,
 115                         m_mouseX, m_mouseY,
 116                         axies[0].CursorPos - m_mouseX, axies[1].CursorPos - m_mouseY
 117                         );
 118                 m_mouseX = axies[0].CursorPos;
 119                 m_mouseY = axies[1].CursorPos;
 120
 121                 for( int i = 0; i < mouseinfo->NButtons; i ++ )
 122                 {
 123                          int    bit = 1 << i;
 124                          int    cur = buttons[i] > 128;
 125                         if( !!(m_mouseBtns & bit) != cur )
 126                         {
 127                                 m_compositor.MouseButton(0, m_mouseX, m_mouseY, (eMouseButton)i, cur);
 128                                 // Flip button state
 129                                 m_mouseBtns ^= bit;
 130                         }
 131                 }
 132         }
 133 }
 134
 135 };      // namespace AxWin
 136