// GNU General Public License for more details.
//
// DESCRIPTION:
-// DOOM graphics stuff for SDL.
+// DOOM keyboard input via linux tty
//
-#include "SDL/SDL.h"
#include <stdlib.h>
#include <ctype.h>
#include <math.h>
// Is the shift key currently down?
static int shiftdown = 0;
+
+// Lookup table for mapping AT keycodes to their doom keycode
+static const char at_to_doom[] =
+{
+ /* 0x00 */ 0x00,
+ /* 0x01 */ KEY_ESCAPE,
+ /* 0x02 */ '1',
+ /* 0x03 */ '2',
+ /* 0x04 */ '3',
+ /* 0x05 */ '4',
+ /* 0x06 */ '5',
+ /* 0x07 */ '6',
+ /* 0x08 */ '7',
+ /* 0x09 */ '8',
+ /* 0x0a */ '9',
+ /* 0x0b */ '0',
+ /* 0x0c */ '-',
+ /* 0x0d */ '=',
+ /* 0x0e */ KEY_BACKSPACE,
+ /* 0x0f */ KEY_TAB,
+ /* 0x10 */ 'q',
+ /* 0x11 */ 'w',
+ /* 0x12 */ 'e',
+ /* 0x13 */ 'r',
+ /* 0x14 */ 't',
+ /* 0x15 */ 'y',
+ /* 0x16 */ 'u',
+ /* 0x17 */ 'i',
+ /* 0x18 */ 'o',
+ /* 0x19 */ 'p',
+ /* 0x1a */ '[',
+ /* 0x1b */ ']',
+ /* 0x1c */ KEY_ENTER,
+ /* 0x1d */ KEY_FIRE, /* KEY_RCTRL, */
+ /* 0x1e */ 'a',
+ /* 0x1f */ 's',
+ /* 0x20 */ 'd',
+ /* 0x21 */ 'f',
+ /* 0x22 */ 'g',
+ /* 0x23 */ 'h',
+ /* 0x24 */ 'j',
+ /* 0x25 */ 'k',
+ /* 0x26 */ 'l',
+ /* 0x27 */ ';',
+ /* 0x28 */ '\'',
+ /* 0x29 */ '`',
+ /* 0x2a */ KEY_RSHIFT,
+ /* 0x2b */ '\\',
+ /* 0x2c */ 'z',
+ /* 0x2d */ 'x',
+ /* 0x2e */ 'c',
+ /* 0x2f */ 'v',
+ /* 0x30 */ 'b',
+ /* 0x31 */ 'n',
+ /* 0x32 */ 'm',
+ /* 0x33 */ ',',
+ /* 0x34 */ '.',
+ /* 0x35 */ '/',
+ /* 0x36 */ KEY_RSHIFT,
+ /* 0x37 */ KEYP_MULTIPLY,
+ /* 0x38 */ KEY_LALT,
+ /* 0x39 */ KEY_USE,
+ /* 0x3a */ KEY_CAPSLOCK,
+ /* 0x3b */ KEY_F1,
+ /* 0x3c */ KEY_F2,
+ /* 0x3d */ KEY_F3,
+ /* 0x3e */ KEY_F4,
+ /* 0x3f */ KEY_F5,
+ /* 0x40 */ KEY_F6,
+ /* 0x41 */ KEY_F7,
+ /* 0x42 */ KEY_F8,
+ /* 0x43 */ KEY_F9,
+ /* 0x44 */ KEY_F10,
+ /* 0x45 */ KEY_NUMLOCK,
+ /* 0x46 */ 0x0,
+ /* 0x47 */ 0x0, /* 47 (Keypad-7/Home) */
+ /* 0x48 */ 0x0, /* 48 (Keypad-8/Up) */
+ /* 0x49 */ 0x0, /* 49 (Keypad-9/PgUp) */
+ /* 0x4a */ 0x0, /* 4a (Keypad--) */
+ /* 0x4b */ 0x0, /* 4b (Keypad-4/Left) */
+ /* 0x4c */ 0x0, /* 4c (Keypad-5) */
+ /* 0x4d */ 0x0, /* 4d (Keypad-6/Right) */
+ /* 0x4e */ 0x0, /* 4e (Keypad-+) */
+ /* 0x4f */ 0x0, /* 4f (Keypad-1/End) */
+ /* 0x50 */ 0x0, /* 50 (Keypad-2/Down) */
+ /* 0x51 */ 0x0, /* 51 (Keypad-3/PgDn) */
+ /* 0x52 */ 0x0, /* 52 (Keypad-0/Ins) */
+ /* 0x53 */ 0x0, /* 53 (Keypad-./Del) */
+ /* 0x54 */ 0x0, /* 54 (Alt-SysRq) on a 84+ key keyboard */
+ /* 0x55 */ 0x0,
+ /* 0x56 */ 0x0,
+ /* 0x57 */ 0x0,
+ /* 0x58 */ 0x0,
+ /* 0x59 */ 0x0,
+ /* 0x5a */ 0x0,
+ /* 0x5b */ 0x0,
+ /* 0x5c */ 0x0,
+ /* 0x5d */ 0x0,
+ /* 0x5e */ 0x0,
+ /* 0x5f */ 0x0,
+ /* 0x60 */ 0x0,
+ /* 0x61 */ 0x0,
+ /* 0x62 */ 0x0,
+ /* 0x63 */ 0x0,
+ /* 0x64 */ 0x0,
+ /* 0x65 */ 0x0,
+ /* 0x66 */ 0x0,
+ /* 0x67 */ KEY_UPARROW,
+ /* 0x68 */ 0x0,
+ /* 0x69 */ KEY_LEFTARROW,
+ /* 0x6a */ KEY_RIGHTARROW,
+ /* 0x6b */ 0x0,
+ /* 0x6c */ KEY_DOWNARROW,
+ /* 0x6d */ 0x0,
+ /* 0x6e */ 0x0,
+ /* 0x6f */ 0x0,
+ /* 0x70 */ 0x0,
+ /* 0x71 */ 0x0,
+ /* 0x72 */ 0x0,
+ /* 0x73 */ 0x0,
+ /* 0x74 */ 0x0,
+ /* 0x75 */ 0x0,
+ /* 0x76 */ 0x0,
+ /* 0x77 */ 0x0,
+ /* 0x78 */ 0x0,
+ /* 0x79 */ 0x0,
+ /* 0x7a */ 0x0,
+ /* 0x7b */ 0x0,
+ /* 0x7c */ 0x0,
+ /* 0x7d */ 0x0,
+ /* 0x7e */ 0x0,
+ /* 0x7f */ KEY_FIRE, //KEY_RCTRL,
+};
+
// Lookup table for mapping ASCII characters to their equivalent when
// shift is pressed on an American layout keyboard:
-
static const char shiftxform[] =
{
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
int i;
int flags;
- printf(">>>>>>>>>>>>>> %s\r\n", __func__);
-
/* First we need to find a file descriptor that represents the
system's keyboard. This should be /dev/tty, /dev/console,
stdin, stdout, or stderr. We'll try them in that order.
/* Print the keycode. The top bit is the pressed/released
flag, and the lower seven are the keycode. */
- printf("%s: 0x%2X (%i)\n", *pressed ? "Released" : " Pressed", (unsigned int)*key, (unsigned int)*key);
- //if (*key == 0x0E) {
- // printf("Backspace pressed.\n");
- // kbd_shutdown();
- //}
+ //printf("%s: 0x%2X (%i)\n", *pressed ? "Released" : " Pressed", (unsigned int)*key, (unsigned int)*key);
return 1;
}
-
-//
-// Translates the SDL key
-//
-
-#define TTY_ESC (0x01)
-#define TTY_ENTER (0x1C)
-#define TTY_W (0x11)
-#define TTY_A (0x1E)
-#define TTY_S (0x1F)
-#define TTY_D (0x20)
-#define TTY_LCTRL (0x1D)
-#define TTY_RCTRL (0x61)
-#define TTY_UP (0x67)
-#define TTY_LEFT (0x69)
-#define TTY_DOWN (0x6C)
-#define TTY_RIGHT (0x6A)
-#define TTY_Y (0x15)
-#define TTY_N (0x31)
-
-#if 0
-enum sdl_keys {
- SDLK_a = 97,
- SDLK_b = 98,
- SDLK_c = 99,
- SDLK_d = 100,
- SDLK_e = 101,
- SDLK_f = 102,
- SDLK_g = 103,
- SDLK_h = 104,
- SDLK_i = 105,
- SDLK_j = 106,
- SDLK_k = 107,
- SDLK_l = 108,
- SDLK_m = 109,
- SDLK_n = 110,
- SDLK_o = 111,
- SDLK_p = 112,
- SDLK_q = 113,
- SDLK_r = 114,
- SDLK_s = 115,
- SDLK_t = 116,
- SDLK_u = 117,
- SDLK_v = 118,
- SDLK_w = 119,
- SDLK_x = 120,
- SDLK_y = 121,
- SDLK_z = 122,
-};
-#endif
-
static unsigned char TranslateKey(unsigned char key)
{
- switch(key)
- {
- case TTY_ENTER: return KEY_ENTER;
- case TTY_ESC: return KEY_ESCAPE;
- case TTY_W: return 'w';
- case TTY_A: return 'a';
- case TTY_S: return 's';
- case TTY_D: return 'd';
- case TTY_LEFT: return KEY_LEFTARROW;
- case TTY_RIGHT: return KEY_RIGHTARROW;
- case TTY_DOWN: return KEY_DOWNARROW;
- case TTY_UP: return KEY_UPARROW;
- case TTY_Y: printf("Y\r\n"); return SDLK_y;
- case TTY_N: printf("N\r\n"); return SDLK_n;
-
- case TTY_LCTRL:
- case TTY_RCTRL:
- return KEY_RCTRL;
-
-// case SDLK_TAB: return KEY_TAB;
-// case SDLK_F1: return KEY_F1;
-// case SDLK_F2: return KEY_F2;
-// case SDLK_F3: return KEY_F3;
-// case SDLK_F4: return KEY_F4;
-// case SDLK_F5: return KEY_F5;
-// case SDLK_F6: return KEY_F6;
-// case SDLK_F7: return KEY_F7;
-// case SDLK_F8: return KEY_F8;
-// case SDLK_F9: return KEY_F9;
-// case SDLK_F10: return KEY_F10;
-// case SDLK_F11: return KEY_F11;
-// case SDLK_F12: return KEY_F12;
-// case SDLK_PRINT: return KEY_PRTSCR;
-//
-// case SDLK_BACKSPACE: return KEY_BACKSPACE;
-// case SDLK_DELETE: return KEY_DEL;
-//
-// case SDLK_PAUSE: return KEY_PAUSE;
-//
-// case SDLK_MINUS: return KEY_MINUS;
-//
-// case SDLK_LSHIFT:
-// case SDLK_RSHIFT:
-// return KEY_RSHIFT;
-//
-// case SDLK_LCTRL:
-// case SDLK_RCTRL:
-// return KEY_RCTRL;
-//
-// case SDLK_LALT:
-// case SDLK_RALT:
-// return KEY_RALT;
-//
-// case SDLK_CAPSLOCK: return KEY_CAPSLOCK;
-// case SDLK_SCROLLOCK: return KEY_SCRLCK;
-// case SDLK_NUMLOCK: return KEY_NUMLOCK;
-//
-// case SDLK_KP0: return KEYP_0;
-// case SDLK_KP1: return KEYP_1;
-// case SDLK_KP2: return KEYP_2;
-// case SDLK_KP3: return KEYP_3;
-// case SDLK_KP4: return KEYP_4;
-// case SDLK_KP5: return KEYP_5;
-// case SDLK_KP6: return KEYP_6;
-// case SDLK_KP7: return KEYP_7;
-// case SDLK_KP8: return KEYP_8;
-// case SDLK_KP9: return KEYP_9;
-//
-// case SDLK_KP_PERIOD: return KEYP_PERIOD;
-// case SDLK_KP_MULTIPLY: return KEYP_MULTIPLY;
-// case SDLK_KP_PLUS: return KEYP_PLUS;
-// case SDLK_KP_MINUS: return KEYP_MINUS;
-// case SDLK_KP_DIVIDE: return KEYP_DIVIDE;
-// case SDLK_KP_EQUALS: return KEYP_EQUALS;
-// case SDLK_KP_ENTER: return KEYP_ENTER;
-//
-// case SDLK_HOME: return KEY_HOME;
-// case SDLK_INSERT: return KEY_INS;
-// case SDLK_END: return KEY_END;
-// case SDLK_PAGEUP: return KEY_PGUP;
-// case SDLK_PAGEDOWN: return KEY_PGDN;
-//
-//#ifdef SDL_HAVE_APP_KEYS
-// case SDLK_APP1: return KEY_F1;
-// case SDLK_APP2: return KEY_F2;
-// case SDLK_APP3: return KEY_F3;
-// case SDLK_APP4: return KEY_F4;
-// case SDLK_APP5: return KEY_F5;
-// case SDLK_APP6: return KEY_F6;
-//#endif
-
- //default:
- // return tolower(key);
- }
+ if (key < sizeof(at_to_doom))
+ return at_to_doom[key];
+ else
+ return 0x0;
+
+ //default:
+ // return tolower(key);
}
// Get the equivalent ASCII (Unicode?) character for a keypress.
// Is shift held down? If so, perform a translation.
- //if (shiftdown > 0)
- //{
- // if (key >= 0 && key < arrlen(shiftxform))
- // {
- // key = shiftxform[key];
- // }
- // else
- // {
- // key = 0;
- // }
- //}
+ if (shiftdown > 0)
+ {
+ if (key >= 0 && key < arrlen(shiftxform))
+ {
+ key = shiftxform[key];
+ }
+ else
+ {
+ key = 0;
+ }
+ }
return key;
}
change = -1;
}
- if (key == SDLK_LSHIFT || key == SDLK_RSHIFT) {
+ if (key == 0x2a || key == 0x36) {
shiftdown += change;
}
}
I_Quit();
}
- //UpdateShiftStatus(pressed, key);
+ UpdateShiftStatus(pressed, key);
// process event
if (event.data1 != 0)
{
- printf("Post keydown event.data1 = 0x%x\r\n", event.data1);
D_PostEvent(&event);
}
}
if (event.data1 != 0)
{
- printf("Post keyup event.data1 = 0x%x\r\n", event.data1);
D_PostEvent(&event);
}
break;
*/
}
-
-//void I_ShutdownGraphics(void)
-//{
-// //SDL_QuitSubSystem(SDL_INIT_VIDEO);
-//}
-
-//
-// I_StartTic
-//
-//void I_StartTic (void)
-
void I_InitInput(void)
{
- SDL_Event dummy;
-
kbd_init();
- if (SDL_Init(SDL_INIT_VIDEO) < 0)
- {
- I_Error("Failed to initialize video: %s", SDL_GetError());
- }
-
//UpdateFocus();
-
- // We need SDL to give us translated versions of keys as well
-
- SDL_EnableUNICODE(1);
-
- // Repeat key presses - this is what Vanilla Doom does
- // Not sure about repeat rate - probably dependent on which DOS
- // driver is used. This is good enough though.
-
- SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
-
- // clear out any events waiting at the start and center the mouse
-
- while (SDL_PollEvent(&dummy));
}
projects / doomgeneric-snom360 / commitdiff
