483 lines
10 KiB
C
Executable file
483 lines
10 KiB
C
Executable file
/* $Id: key.c,v 1.1.1.1 2006/03/17 19:53:55 zicodxx Exp $ */
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <stdio.h>
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#include <dinput.h>
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//#include "inferno.h"
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#include "fix.h"
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#include "timer.h"
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#include "key.h"
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extern void PumpMessages(void);
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// These are to kludge up a bit my slightly broken GCC directx port.
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#ifndef E_FAIL
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#define E_FAIL (HRESULT)0x80004005L
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#endif
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#ifndef SUCCEEDED
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#define SUCCEEDED(a) ((HRESULT)(a) >= 0)
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#endif
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#ifndef S_OK
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#define S_OK 0
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#define S_FALSE 1
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#endif
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extern void PumpMessages(void);
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volatile int keyd_time_when_last_pressed;
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volatile unsigned char keyd_last_pressed;
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volatile unsigned char keyd_last_released;
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volatile unsigned char keyd_pressed [256];
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unsigned char keyd_repeat;
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unsigned char WMKey_Handler_Ready=0;
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fix g_rgtimeDown [256];
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fix g_rgtimeElapsed [256];
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ULONG g_rgcDowns [256];
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ULONG g_rgcUps [256];
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char ascii_table[256];
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char shifted_ascii_table[256];
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LPDIRECTINPUT g_lpdi;
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LPDIRECTINPUTDEVICE g_lpdidKeybd;
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extern HWND g_hWnd;
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typedef int KEYCODE;
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#define KEY_BUFFER_SIZE 16
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ULONG g_rgbKeyQueue [KEY_BUFFER_SIZE];
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fix g_rgtimeQueue [KEY_BUFFER_SIZE];
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ULONG g_rgbPressedQueue [KEY_BUFFER_SIZE];
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ULONG iQueueStart = 0;
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ULONG iQueueEnd = 0;
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KEYCODE ShiftKeyCode (KEYCODE kcKey)
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{
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KEYCODE kcShifted;
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if (keyd_pressed [kcKey])
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{
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kcShifted = kcKey;
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// the key is down
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if (keyd_pressed [KEY_LSHIFT] || keyd_pressed [KEY_RSHIFT])
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{
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kcShifted |= KEY_SHIFTED;
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}
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if (keyd_pressed [KEY_LCTRL] || keyd_pressed [KEY_RCTRL])
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{
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kcShifted |= KEY_CTRLED;
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}
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if (keyd_pressed [KEY_LALT] || keyd_pressed [KEY_RALT])
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{
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kcShifted |= KEY_ALTED;
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}
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}
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else
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{
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// the key is UP!
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kcShifted = 0;
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}
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return kcShifted;
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}
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BOOL SpaceInBuffer ()
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{
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if (iQueueStart == 0)
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{
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return iQueueEnd != KEY_BUFFER_SIZE - 1;
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}
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else
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{
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return iQueueEnd != iQueueStart - 1;
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}
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}
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void FlushQueue (void)
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{
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iQueueStart = iQueueEnd = 0;
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}
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void PushKey (ULONG kcKey, fix timeDown)
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{
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if (SpaceInBuffer ())
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{
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g_rgbKeyQueue [iQueueEnd] = ShiftKeyCode(kcKey);
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g_rgtimeQueue [iQueueEnd] = timeDown;
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if (iQueueEnd ++ == KEY_BUFFER_SIZE)
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{
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iQueueEnd = 0;
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}
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}
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}
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BOOL PopKey (KEYCODE *piKey, fix *ptimeDown)
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{
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if (iQueueEnd != iQueueStart)
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{
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// there are items in the queue
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if (piKey != NULL)
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{
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*piKey = g_rgbKeyQueue [iQueueStart];
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}
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if (ptimeDown != NULL)
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{
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*ptimeDown = g_rgbPressedQueue [iQueueStart];
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}
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if (iQueueStart ++ == KEY_BUFFER_SIZE)
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{
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iQueueStart = 0;
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}
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return TRUE;
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}
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else
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{
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return FALSE;
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}
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}
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static BOOL EnsureInit (void)
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{
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if (g_lpdidKeybd == NULL)
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{
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key_init ();
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}
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return g_lpdidKeybd != NULL;
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}
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void key_close(void);
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void key_init()
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{
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HRESULT hr;
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// my kingdom, my kingdom for C++...
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if (SUCCEEDED (hr = DirectInputCreate (GetModuleHandle (NULL), DIRECTINPUT_VERSION, &g_lpdi, NULL)))
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{
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if (SUCCEEDED (hr = IDirectInput_CreateDevice (g_lpdi, (void *)&GUID_SysKeyboard, &g_lpdidKeybd, NULL)))
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{
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DIPROPDWORD dipdw;
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dipdw.diph.dwSize = sizeof (DIPROPDWORD);
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dipdw.diph.dwHeaderSize = sizeof (DIPROPHEADER);
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dipdw.diph.dwObj = 0;
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dipdw.diph.dwHow = DIPH_DEVICE;
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dipdw.dwData = 40;
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if (SUCCEEDED (hr = IDirectInputDevice_SetDataFormat (g_lpdidKeybd, &c_dfDIKeyboard)) &&
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SUCCEEDED (hr = IDirectInputDevice_SetCooperativeLevel (g_lpdidKeybd, g_hWnd, DISCL_NONEXCLUSIVE | DISCL_FOREGROUND)) &&
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SUCCEEDED (hr = IDirectInputDevice_SetProperty (g_lpdidKeybd, DIPROP_BUFFERSIZE, &dipdw.diph)) &&
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SUCCEEDED (hr = IDirectInputDevice_Acquire (g_lpdidKeybd)))
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{
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// fine
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WMKey_Handler_Ready = 1;
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// Clear the keyboard array
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key_flush();
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atexit(key_close);
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}
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else
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{
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IDirectInputDevice_Release (g_lpdidKeybd);
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g_lpdidKeybd = NULL;
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}
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}
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}
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}
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void key_close(void)
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{
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WMKey_Handler_Ready = 0;
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if (g_lpdidKeybd != NULL)
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{
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IDirectInputDevice_Unacquire (g_lpdidKeybd);
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IDirectInputDevice_Release (g_lpdidKeybd);
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g_lpdidKeybd = NULL;
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}
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if (g_lpdi != NULL)
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{
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IDirectInput_Release (g_lpdi);
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g_lpdi = NULL;
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}
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}
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HRESULT ReadKey (DIDEVICEOBJECTDATA *pdidod)
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{
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DWORD cElements = 1;
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HRESULT hr;
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if (g_lpdidKeybd == NULL)
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return E_FAIL;
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hr = IDirectInputDevice_Acquire (g_lpdidKeybd);
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if (SUCCEEDED (hr))
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{
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hr = IDirectInputDevice_GetDeviceData (
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g_lpdidKeybd,
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sizeof (*pdidod),
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pdidod,
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&cElements,
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0);
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if (SUCCEEDED (hr) && cElements != 1)
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hr = E_FAIL;
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}
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return hr;
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}
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void UpdateState (DIDEVICEOBJECTDATA *pdidod)
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{
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KEYCODE kcKey = pdidod->dwOfs;
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fix timeNow = timer_get_fixed_seconds ();
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if (pdidod->dwData & 0x80)
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{
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keyd_pressed [kcKey] = 1;
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keyd_last_pressed = kcKey;
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g_rgtimeDown [kcKey] = keyd_time_when_last_pressed = timeNow;
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g_rgcDowns [kcKey] ++;
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PushKey (kcKey, keyd_time_when_last_pressed);
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}
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else
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{
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keyd_pressed [kcKey] = 0;
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keyd_last_released = kcKey;
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g_rgcUps [kcKey] ++;
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g_rgtimeElapsed [kcKey] = timeNow - g_rgtimeDown [kcKey];
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}
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}
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void keyboard_handler()
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{
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// static int peekmsgcount = 0;
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DIDEVICEOBJECTDATA didod;
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while (SUCCEEDED (ReadKey (&didod)))
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{
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UpdateState (&didod);
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//added 02/20/99 by adb to prevent message overflow
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//(this should probably go somewhere else...)
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// if (++peekmsgcount == 64) // 64 = wild guess...
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// {
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// peekmsgcount = 0;
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// }
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//end additions
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}
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PumpMessages();
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}
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void key_flush()
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{
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if (EnsureInit ())
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{
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DWORD cElements = INFINITE;
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ULONG kcKey;
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// HRESULT hr =
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IDirectInputDevice_GetDeviceData(
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g_lpdidKeybd,
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sizeof (DIDEVICEOBJECTDATA),
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NULL,
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&cElements,
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0);
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for (kcKey = 0; kcKey < 256; kcKey ++)
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{
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g_rgtimeElapsed [kcKey] = 0;
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g_rgcDowns [kcKey] = 0;
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g_rgcUps [kcKey] = 0;
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keyd_pressed [kcKey] = 0;
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}
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FlushQueue ();
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}
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}
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int key_getch()
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{
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KEYCODE kcKey;
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keyboard_handler();
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while (!PopKey (&kcKey, NULL))
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{
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keyboard_handler ();
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}
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return kcKey;
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}
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KEYCODE key_inkey_time(fix * pTime)
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{
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KEYCODE kcKey = 0;
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keyboard_handler ();
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PopKey (&kcKey, pTime);
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return kcKey;
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}
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KEYCODE key_inkey ()
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{
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return key_inkey_time (NULL);
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}
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KEYCODE key_peekkey ()
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{
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keyboard_handler();
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return 0;
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}
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int key_checkch()
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{
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return 1; // FIXME
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}
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unsigned char key_to_ascii(KEYCODE kcKey )
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{
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BOOL bShifted = kcKey & KEY_SHIFTED;
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unsigned char ch;
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kcKey &= ~KEY_SHIFTED;
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if (kcKey <= 127)
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{
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if (bShifted)
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{
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ch = shifted_ascii_table [kcKey & 0xff];
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}
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else
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{
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ch = ascii_table [kcKey & 0xff];
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}
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}
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else
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{
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ch = 255;
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}
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return ch;
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}
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// Returns the number of seconds this key has been down since last call.
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fix key_down_time(KEYCODE kcKey)
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{
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ULONG timeElapsed;
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keyboard_handler();
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if ((kcKey<0) || (kcKey>127)) return 0;
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if (keyd_pressed [kcKey])
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{
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fix timeNow = timer_get_fixed_seconds ();
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timeElapsed = timeNow - g_rgtimeDown [kcKey];
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g_rgtimeDown [kcKey] = timeNow;
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}
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else
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{
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timeElapsed = g_rgtimeElapsed [kcKey];
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g_rgtimeElapsed [kcKey] = 0;
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}
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return timeElapsed;;
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}
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unsigned int key_down_count(KEYCODE kcKey)
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{
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int n;
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keyboard_handler();
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if ((kcKey < 0) || (kcKey > 127))
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{
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n = 0;
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}
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else
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{
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n = g_rgcDowns [kcKey];
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g_rgcDowns [kcKey] = 0;
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}
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return n;
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}
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unsigned int key_up_count(KEYCODE kcKey)
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{
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int n;
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keyboard_handler();
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if ((kcKey < 0) || (kcKey > 127))
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{
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n = 0;
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}
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else
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{
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n = g_rgcUps [kcKey];
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g_rgcUps [kcKey] = 0;
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}
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return n;
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}
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#define ___ ((char) 255)
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char ascii_table[256] =
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{
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___, ___, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', ___, ___,
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'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', ___, ___, 'a', 's',
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'd', 'f', 'g', 'h', 'j', 'k', 'l', ';','\'', '`', ___,'\\', 'z', 'x', 'c', 'v',
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'b', 'n', 'm', ',', '.', '/', ___, '*', ___, ' ', ___, ___, ___, ___, ___, ___,
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___, ___, ___, ___, ___, ___, ___, '7', '8', '9', '-', '4', '5', '6', '+', '1',
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'2', '3', '0', '.', ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___,
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___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___,
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___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___,
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};
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char shifted_ascii_table[256] =
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{
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___, ___, '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', ___, ___,
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'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', ___, ___, 'A', 'S',
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'D', 'F', 'G', 'H', 'J', 'K', 'L', ':','\"', '~', ___, '|', 'Z', 'X', 'C', 'V',
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'B', 'N', 'M', '<', '>', '?', ___, '*', ___, ' ', ___, ___, ___, ___, ___, ___,
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___, ___, ___, ___, ___, ___, ___, '&', '*', '(', '_', '$', '%', '^', '=', '!',
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'@', '#', ')', '>', ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___,
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___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___,
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___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___,
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};
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#undef ___
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char * key_text[256] = {
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"","ESC","1","2","3","4","5","6","7","8","9","0","-",
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"=","BSPC","TAB","Q","W","E","R","T","Y","U","I","O",
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"P","[","]","<EFBFBD>","LCTRL","A","S","D","F",
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"G","H","J","K","L",";","'","`",
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"LSHFT","\\","Z","X","C","V","B","N","M",",",
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".","/","RSHFT","PAD*","LALT","SPC",
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"CPSLK","F1","F2","F3","F4","F5","F6","F7","F8","F9",
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"F10","NMLCK","SCLK","PAD7","PAD8","PAD9","PAD-",
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"PAD4","PAD5","PAD6","PAD+","PAD1","PAD2","PAD3","PAD0",
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"PAD.","","","","F11","F12","","","","","","","","","",
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"","","","","","","","","","","","","","","","","","","","",
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"","","","","","","","","","","","","","","","","","","","",
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"","","","","","","","","","","","","","","","","","",
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"PAD<EFBFBD>","RCTRL","","","","","","","","","","","","","",
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"","","","","","","","","","","PAD/","","","RALT","",
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"","","","","","","","","","","","","","HOME","<EFBFBD>","PGUP",
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"","<EFBFBD>","","","","END","<EFBFBD>","PGDN","INS",
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"DEL","","","","","","","","","","","","","","","","","",
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"","","","","","","","","","","","","","","","","","","","",
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"","","","","","","" };
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#if 0 // what was this? -- adb
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"","","","HOME","UP","PGUP","","LEFT","","RGHT","","END","DOWN","PGDN","INS","DEL",
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"","<22>","","","","","?","","",
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"","","","","","","","","","","","","","","","","","",
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"","","","","","","","","","","","","","","","","","","","",
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"","","","","","","" };
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#endif
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