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view src/events/SDL_keyboard.c @ 4167:a6f635e5eaa6 SDL-1.2

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Fixed bug #611 From Tim Angus 2008-08-12 11:18:06 I'm one of the maintainers of ioquake3.org, an updated version of the Quake 3 engine. Relatively recently, we moved ioq3 to use SDL as a replacement for 95% of the platform specific code that was there. On the whole it's doing a great job but unfortunately since the move we've been getting complaints about the quality of the mouse input on the Windows platform to the point where for many the game is unplayable. Put in other terms, the current stable SDL 1.2 is basically not fit for purpose if you need high quality mouse input as you do in a first person shooter. Over the weekend I decided to pull my finger out and actually figure out what's going on. There are basically two major problems. Firstly, when using the "windib" driver, mouse input is gathered via the WM_MOUSEMOVE message. Googling for this indicates that often this is known to result in "spurious" and/or "missing" mouse movement events; this is the primary cause of the poor mouse input. The second problem is that the "directx" driver does not work at all in combination with OpenGL meaning that you can't use DirectInput if your application also uses OpenGL. In other words you're locked into using the "windib" driver and its poor mouse input. In order to address these problems I've done the following: * Remove WM_MOUSEMOVE based motion event generation and replace with calls to GetCursorPos which seems much more reliable. In order to achieve this I've moved mouse motion out into a separate function that is called once per DIB_PumpEvents. * Remove the restriction on the "directx" driver being inoperable in combination with OpenGL. There is a bug for this issues that I've hijacked to a certain extent (http://bugzilla.libsdl.org/show_bug.cgi?id=265). I'm the first to admit I don't really understand why this restriction is there in the first place. The commit message for the bug fix that introduced this restriction (r581) isn't very elaborate and I couldn't see any other bug tracking the issue. If anyone has more information on the bug that was avoided by r581 it would be helpful as I/someone could then look into addressing the problem without disabling the "directx" driver. * I've also removed the restriction on not being allowed to use DirectInput in windowed mode. I couldn't see any reason for this, at least not from our perspective. I have my suspicions that it'll be something like matching up the cursor with the mouse coordinates... * I bumped up the DirectInput API used to version 7 in order to get access to mouse buttons 4-7. I've had to inject a little bit of the DX7 headers into SDL there as the MinGW ones aren't up to date in this respect.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 02 Apr 2009 04:43:36 +0000
parents 3b7fc3416601
children 0ca47eaff9c9
line wrap: on
line source

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/
#include "SDL_config.h"

/* General keyboard handling code for SDL */

#include "SDL_timer.h"
#include "SDL_events.h"
#include "SDL_events_c.h"
#include "SDL_sysevents.h"


/* Global keystate information */
static Uint8  SDL_KeyState[SDLK_LAST];
static SDLMod SDL_ModState;
int SDL_TranslateUNICODE = 0;

static const char *keynames[SDLK_LAST];	/* Array of keycode names */

/*
 * jk 991215 - added
 */
struct {
	int firsttime;    /* if we check against the delay or repeat value */
	int delay;        /* the delay before we start repeating */
	int interval;     /* the delay between key repeat events */
	Uint32 timestamp; /* the time the first keydown event occurred */

	SDL_Event evt;    /* the event we are supposed to repeat */
} SDL_KeyRepeat;

/* Global no-lock-keys support */
static Uint8 SDL_NoLockKeys;

#define SDL_NLK_CAPS 0x01
#define SDL_NLK_NUM  0x02

/* Public functions */
int SDL_KeyboardInit(void)
{
	const char* env;
	SDL_VideoDevice *video = current_video;
	SDL_VideoDevice *this  = current_video;

	/* Set default mode of UNICODE translation */
	SDL_EnableUNICODE(DEFAULT_UNICODE_TRANSLATION);

	/* Initialize the tables */
	SDL_ModState = KMOD_NONE;
	SDL_memset((void*)keynames, 0, sizeof(keynames));
	SDL_memset(SDL_KeyState, 0, sizeof(SDL_KeyState));
	video->InitOSKeymap(this);

	SDL_EnableKeyRepeat(0, 0);

	/* Allow environment override to disable special lock-key behavior */
	env = SDL_getenv("SDL_NO_LOCK_KEYS");
	SDL_NoLockKeys = 0;
	if (env) {
		switch (SDL_atoi(env)) {
			case 1:
				SDL_NoLockKeys = SDL_NLK_CAPS | SDL_NLK_NUM;
				break;
			case 2:
				SDL_NoLockKeys = SDL_NLK_CAPS;
				break;
			case 3:
				SDL_NoLockKeys = SDL_NLK_NUM;
				break;
			default:
				break;
		}
	}

	/* Fill in the blanks in keynames */
	keynames[SDLK_BACKSPACE] = "backspace";
	keynames[SDLK_TAB] = "tab";
	keynames[SDLK_CLEAR] = "clear";
	keynames[SDLK_RETURN] = "return";
	keynames[SDLK_PAUSE] = "pause";
	keynames[SDLK_ESCAPE] = "escape";
	keynames[SDLK_SPACE] = "space";
	keynames[SDLK_EXCLAIM]  = "!";
	keynames[SDLK_QUOTEDBL]  = "\"";
	keynames[SDLK_HASH]  = "#";
	keynames[SDLK_DOLLAR]  = "$";
	keynames[SDLK_AMPERSAND]  = "&";
	keynames[SDLK_QUOTE] = "'";
	keynames[SDLK_LEFTPAREN] = "(";
	keynames[SDLK_RIGHTPAREN] = ")";
	keynames[SDLK_ASTERISK] = "*";
	keynames[SDLK_PLUS] = "+";
	keynames[SDLK_COMMA] = ",";
	keynames[SDLK_MINUS] = "-";
	keynames[SDLK_PERIOD] = ".";
	keynames[SDLK_SLASH] = "/";
	keynames[SDLK_0] = "0";
	keynames[SDLK_1] = "1";
	keynames[SDLK_2] = "2";
	keynames[SDLK_3] = "3";
	keynames[SDLK_4] = "4";
	keynames[SDLK_5] = "5";
	keynames[SDLK_6] = "6";
	keynames[SDLK_7] = "7";
	keynames[SDLK_8] = "8";
	keynames[SDLK_9] = "9";
	keynames[SDLK_COLON] = ":";
	keynames[SDLK_SEMICOLON] = ";";
	keynames[SDLK_LESS] = "<";
	keynames[SDLK_EQUALS] = "=";
	keynames[SDLK_GREATER] = ">";
	keynames[SDLK_QUESTION] = "?";
	keynames[SDLK_AT] = "@";
	keynames[SDLK_LEFTBRACKET] = "[";
	keynames[SDLK_BACKSLASH] = "\\";
	keynames[SDLK_RIGHTBRACKET] = "]";
	keynames[SDLK_CARET] = "^";
	keynames[SDLK_UNDERSCORE] = "_";
	keynames[SDLK_BACKQUOTE] = "`";
	keynames[SDLK_a] = "a";
	keynames[SDLK_b] = "b";
	keynames[SDLK_c] = "c";
	keynames[SDLK_d] = "d";
	keynames[SDLK_e] = "e";
	keynames[SDLK_f] = "f";
	keynames[SDLK_g] = "g";
	keynames[SDLK_h] = "h";
	keynames[SDLK_i] = "i";
	keynames[SDLK_j] = "j";
	keynames[SDLK_k] = "k";
	keynames[SDLK_l] = "l";
	keynames[SDLK_m] = "m";
	keynames[SDLK_n] = "n";
	keynames[SDLK_o] = "o";
	keynames[SDLK_p] = "p";
	keynames[SDLK_q] = "q";
	keynames[SDLK_r] = "r";
	keynames[SDLK_s] = "s";
	keynames[SDLK_t] = "t";
	keynames[SDLK_u] = "u";
	keynames[SDLK_v] = "v";
	keynames[SDLK_w] = "w";
	keynames[SDLK_x] = "x";
	keynames[SDLK_y] = "y";
	keynames[SDLK_z] = "z";
	keynames[SDLK_DELETE] = "delete";

	keynames[SDLK_WORLD_0] = "world 0";
	keynames[SDLK_WORLD_1] = "world 1";
	keynames[SDLK_WORLD_2] = "world 2";
	keynames[SDLK_WORLD_3] = "world 3";
	keynames[SDLK_WORLD_4] = "world 4";
	keynames[SDLK_WORLD_5] = "world 5";
	keynames[SDLK_WORLD_6] = "world 6";
	keynames[SDLK_WORLD_7] = "world 7";
	keynames[SDLK_WORLD_8] = "world 8";
	keynames[SDLK_WORLD_9] = "world 9";
	keynames[SDLK_WORLD_10] = "world 10";
	keynames[SDLK_WORLD_11] = "world 11";
	keynames[SDLK_WORLD_12] = "world 12";
	keynames[SDLK_WORLD_13] = "world 13";
	keynames[SDLK_WORLD_14] = "world 14";
	keynames[SDLK_WORLD_15] = "world 15";
	keynames[SDLK_WORLD_16] = "world 16";
	keynames[SDLK_WORLD_17] = "world 17";
	keynames[SDLK_WORLD_18] = "world 18";
	keynames[SDLK_WORLD_19] = "world 19";
	keynames[SDLK_WORLD_20] = "world 20";
	keynames[SDLK_WORLD_21] = "world 21";
	keynames[SDLK_WORLD_22] = "world 22";
	keynames[SDLK_WORLD_23] = "world 23";
	keynames[SDLK_WORLD_24] = "world 24";
	keynames[SDLK_WORLD_25] = "world 25";
	keynames[SDLK_WORLD_26] = "world 26";
	keynames[SDLK_WORLD_27] = "world 27";
	keynames[SDLK_WORLD_28] = "world 28";
	keynames[SDLK_WORLD_29] = "world 29";
	keynames[SDLK_WORLD_30] = "world 30";
	keynames[SDLK_WORLD_31] = "world 31";
	keynames[SDLK_WORLD_32] = "world 32";
	keynames[SDLK_WORLD_33] = "world 33";
	keynames[SDLK_WORLD_34] = "world 34";
	keynames[SDLK_WORLD_35] = "world 35";
	keynames[SDLK_WORLD_36] = "world 36";
	keynames[SDLK_WORLD_37] = "world 37";
	keynames[SDLK_WORLD_38] = "world 38";
	keynames[SDLK_WORLD_39] = "world 39";
	keynames[SDLK_WORLD_40] = "world 40";
	keynames[SDLK_WORLD_41] = "world 41";
	keynames[SDLK_WORLD_42] = "world 42";
	keynames[SDLK_WORLD_43] = "world 43";
	keynames[SDLK_WORLD_44] = "world 44";
	keynames[SDLK_WORLD_45] = "world 45";
	keynames[SDLK_WORLD_46] = "world 46";
	keynames[SDLK_WORLD_47] = "world 47";
	keynames[SDLK_WORLD_48] = "world 48";
	keynames[SDLK_WORLD_49] = "world 49";
	keynames[SDLK_WORLD_50] = "world 50";
	keynames[SDLK_WORLD_51] = "world 51";
	keynames[SDLK_WORLD_52] = "world 52";
	keynames[SDLK_WORLD_53] = "world 53";
	keynames[SDLK_WORLD_54] = "world 54";
	keynames[SDLK_WORLD_55] = "world 55";
	keynames[SDLK_WORLD_56] = "world 56";
	keynames[SDLK_WORLD_57] = "world 57";
	keynames[SDLK_WORLD_58] = "world 58";
	keynames[SDLK_WORLD_59] = "world 59";
	keynames[SDLK_WORLD_60] = "world 60";
	keynames[SDLK_WORLD_61] = "world 61";
	keynames[SDLK_WORLD_62] = "world 62";
	keynames[SDLK_WORLD_63] = "world 63";
	keynames[SDLK_WORLD_64] = "world 64";
	keynames[SDLK_WORLD_65] = "world 65";
	keynames[SDLK_WORLD_66] = "world 66";
	keynames[SDLK_WORLD_67] = "world 67";
	keynames[SDLK_WORLD_68] = "world 68";
	keynames[SDLK_WORLD_69] = "world 69";
	keynames[SDLK_WORLD_70] = "world 70";
	keynames[SDLK_WORLD_71] = "world 71";
	keynames[SDLK_WORLD_72] = "world 72";
	keynames[SDLK_WORLD_73] = "world 73";
	keynames[SDLK_WORLD_74] = "world 74";
	keynames[SDLK_WORLD_75] = "world 75";
	keynames[SDLK_WORLD_76] = "world 76";
	keynames[SDLK_WORLD_77] = "world 77";
	keynames[SDLK_WORLD_78] = "world 78";
	keynames[SDLK_WORLD_79] = "world 79";
	keynames[SDLK_WORLD_80] = "world 80";
	keynames[SDLK_WORLD_81] = "world 81";
	keynames[SDLK_WORLD_82] = "world 82";
	keynames[SDLK_WORLD_83] = "world 83";
	keynames[SDLK_WORLD_84] = "world 84";
	keynames[SDLK_WORLD_85] = "world 85";
	keynames[SDLK_WORLD_86] = "world 86";
	keynames[SDLK_WORLD_87] = "world 87";
	keynames[SDLK_WORLD_88] = "world 88";
	keynames[SDLK_WORLD_89] = "world 89";
	keynames[SDLK_WORLD_90] = "world 90";
	keynames[SDLK_WORLD_91] = "world 91";
	keynames[SDLK_WORLD_92] = "world 92";
	keynames[SDLK_WORLD_93] = "world 93";
	keynames[SDLK_WORLD_94] = "world 94";
	keynames[SDLK_WORLD_95] = "world 95";

	keynames[SDLK_KP0] = "[0]";
	keynames[SDLK_KP1] = "[1]";
	keynames[SDLK_KP2] = "[2]";
	keynames[SDLK_KP3] = "[3]";
	keynames[SDLK_KP4] = "[4]";
	keynames[SDLK_KP5] = "[5]";
	keynames[SDLK_KP6] = "[6]";
	keynames[SDLK_KP7] = "[7]";
	keynames[SDLK_KP8] = "[8]";
	keynames[SDLK_KP9] = "[9]";
	keynames[SDLK_KP_PERIOD] = "[.]";
	keynames[SDLK_KP_DIVIDE] = "[/]";
	keynames[SDLK_KP_MULTIPLY] = "[*]";
	keynames[SDLK_KP_MINUS] = "[-]";
	keynames[SDLK_KP_PLUS] = "[+]";
	keynames[SDLK_KP_ENTER] = "enter";
	keynames[SDLK_KP_EQUALS] = "equals";

	keynames[SDLK_UP] = "up";
	keynames[SDLK_DOWN] = "down";
	keynames[SDLK_RIGHT] = "right";
	keynames[SDLK_LEFT] = "left";
	keynames[SDLK_DOWN] = "down";
	keynames[SDLK_INSERT] = "insert";
	keynames[SDLK_HOME] = "home";
	keynames[SDLK_END] = "end";
	keynames[SDLK_PAGEUP] = "page up";
	keynames[SDLK_PAGEDOWN] = "page down";

	keynames[SDLK_F1] = "f1";
	keynames[SDLK_F2] = "f2";
	keynames[SDLK_F3] = "f3";
	keynames[SDLK_F4] = "f4";
	keynames[SDLK_F5] = "f5";
	keynames[SDLK_F6] = "f6";
	keynames[SDLK_F7] = "f7";
	keynames[SDLK_F8] = "f8";
	keynames[SDLK_F9] = "f9";
	keynames[SDLK_F10] = "f10";
	keynames[SDLK_F11] = "f11";
	keynames[SDLK_F12] = "f12";
	keynames[SDLK_F13] = "f13";
	keynames[SDLK_F14] = "f14";
	keynames[SDLK_F15] = "f15";

	keynames[SDLK_NUMLOCK] = "numlock";
	keynames[SDLK_CAPSLOCK] = "caps lock";
	keynames[SDLK_SCROLLOCK] = "scroll lock";
	keynames[SDLK_RSHIFT] = "right shift";
	keynames[SDLK_LSHIFT] = "left shift";
	keynames[SDLK_RCTRL] = "right ctrl";
	keynames[SDLK_LCTRL] = "left ctrl";
	keynames[SDLK_RALT] = "right alt";
	keynames[SDLK_LALT] = "left alt";
	keynames[SDLK_RMETA] = "right meta";
	keynames[SDLK_LMETA] = "left meta";
	keynames[SDLK_LSUPER] = "left super";	/* "Windows" keys */
	keynames[SDLK_RSUPER] = "right super";	
	keynames[SDLK_MODE] = "alt gr";
	keynames[SDLK_COMPOSE] = "compose";

	keynames[SDLK_HELP] = "help";
	keynames[SDLK_PRINT] = "print screen";
	keynames[SDLK_SYSREQ] = "sys req";
	keynames[SDLK_BREAK] = "break";
	keynames[SDLK_MENU] = "menu";
	keynames[SDLK_POWER] = "power";
	keynames[SDLK_EURO] = "euro";
	keynames[SDLK_UNDO] = "undo";

	/* Done.  Whew. */
	return(0);
}
void SDL_KeyboardQuit(void)
{
}

/* We lost the keyboard, so post key up messages for all pressed keys */
void SDL_ResetKeyboard(void)
{
	SDL_keysym keysym;
	SDLKey key;

	SDL_memset(&keysym, 0, (sizeof keysym));
	for ( key=SDLK_FIRST; key<SDLK_LAST; ++key ) {
		if ( SDL_KeyState[key] == SDL_PRESSED ) {
			keysym.sym = key;
			SDL_PrivateKeyboard(SDL_RELEASED, &keysym);
		}
	}
	SDL_KeyRepeat.timestamp = 0;
}

int SDL_EnableUNICODE(int enable)
{
	int old_mode;

	old_mode = SDL_TranslateUNICODE;
	if ( enable >= 0 ) {
		SDL_TranslateUNICODE = enable;
	}
	return(old_mode);
}

Uint8 * SDL_GetKeyState (int *numkeys)
{
	if ( numkeys != (int *)0 )
		*numkeys = SDLK_LAST;
	return(SDL_KeyState);
}
SDLMod SDL_GetModState (void)
{
	return(SDL_ModState);
}
void SDL_SetModState (SDLMod modstate)
{
	SDL_ModState = modstate;
}

char *SDL_GetKeyName(SDLKey key)
{
	const char *keyname;

	keyname = NULL;
	if ( key < SDLK_LAST ) {
		keyname = keynames[key];
	}
	if ( keyname == NULL ) {
		keyname = "unknown key";
	}
	/* FIXME: make this function const in 1.3 */
	return (char *)(keyname);
}

/* These are global for SDL_eventloop.c */
int SDL_PrivateKeyboard(Uint8 state, SDL_keysym *keysym)
{
	SDL_Event event;
	int posted, repeatable;
	Uint16 modstate;

	SDL_memset(&event, 0, sizeof(event));

#if 0
printf("The '%s' key has been %s\n", SDL_GetKeyName(keysym->sym), 
				state == SDL_PRESSED ? "pressed" : "released");
#endif
	/* Set up the keysym */
	modstate = (Uint16)SDL_ModState;

	repeatable = 0;

	if ( state == SDL_PRESSED ) {
		keysym->mod = (SDLMod)modstate;
		switch (keysym->sym) {
			case SDLK_UNKNOWN:
				break;
			case SDLK_NUMLOCK:
				modstate ^= KMOD_NUM;
				if ( SDL_NoLockKeys & SDL_NLK_NUM )
					break;
				if ( ! (modstate&KMOD_NUM) )
					state = SDL_RELEASED;
				keysym->mod = (SDLMod)modstate;
				break;
			case SDLK_CAPSLOCK:
				modstate ^= KMOD_CAPS;
				if ( SDL_NoLockKeys & SDL_NLK_CAPS )
					break;
				if ( ! (modstate&KMOD_CAPS) )
					state = SDL_RELEASED;
				keysym->mod = (SDLMod)modstate;
				break;
			case SDLK_LCTRL:
				modstate |= KMOD_LCTRL;
				break;
			case SDLK_RCTRL:
				modstate |= KMOD_RCTRL;
				break;
			case SDLK_LSHIFT:
				modstate |= KMOD_LSHIFT;
				break;
			case SDLK_RSHIFT:
				modstate |= KMOD_RSHIFT;
				break;
			case SDLK_LALT:
				modstate |= KMOD_LALT;
				break;
			case SDLK_RALT:
				modstate |= KMOD_RALT;
				break;
			case SDLK_LMETA:
				modstate |= KMOD_LMETA;
				break;
			case SDLK_RMETA:
				modstate |= KMOD_RMETA;
				break;
			case SDLK_MODE:
				modstate |= KMOD_MODE;
				break;
			default:
				repeatable = 1;
				break;
		}
	} else {
		switch (keysym->sym) {
			case SDLK_UNKNOWN:
				break;
			case SDLK_NUMLOCK:
				if ( SDL_NoLockKeys & SDL_NLK_NUM )
					break;
				/* Only send keydown events */
				return(0);
			case SDLK_CAPSLOCK:
				if ( SDL_NoLockKeys & SDL_NLK_CAPS )
					break;
				/* Only send keydown events */
				return(0);
			case SDLK_LCTRL:
				modstate &= ~KMOD_LCTRL;
				break;
			case SDLK_RCTRL:
				modstate &= ~KMOD_RCTRL;
				break;
			case SDLK_LSHIFT:
				modstate &= ~KMOD_LSHIFT;
				break;
			case SDLK_RSHIFT:
				modstate &= ~KMOD_RSHIFT;
				break;
			case SDLK_LALT:
				modstate &= ~KMOD_LALT;
				break;
			case SDLK_RALT:
				modstate &= ~KMOD_RALT;
				break;
			case SDLK_LMETA:
				modstate &= ~KMOD_LMETA;
				break;
			case SDLK_RMETA:
				modstate &= ~KMOD_RMETA;
				break;
			case SDLK_MODE:
				modstate &= ~KMOD_MODE;
				break;
			default:
				break;
		}
		keysym->mod = (SDLMod)modstate;
	}

	/* Figure out what type of event this is */
	switch (state) {
		case SDL_PRESSED:
			event.type = SDL_KEYDOWN;
			break;
		case SDL_RELEASED:
			event.type = SDL_KEYUP;
			/*
			 * jk 991215 - Added
			 */
			if ( SDL_KeyRepeat.timestamp &&
			     SDL_KeyRepeat.evt.key.keysym.sym == keysym->sym ) {
				SDL_KeyRepeat.timestamp = 0;
			}
			break;
		default:
			/* Invalid state -- bail */
			return(0);
	}

	if ( keysym->sym != SDLK_UNKNOWN ) {
		/* Drop events that don't change state */
		if ( SDL_KeyState[keysym->sym] == state ) {
#if 0
printf("Keyboard event didn't change state - dropped!\n");
#endif
			return(0);
		}

		/* Update internal keyboard state */
		SDL_ModState = (SDLMod)modstate;
		SDL_KeyState[keysym->sym] = state;
	}

	/* Post the event, if desired */
	posted = 0;
	if ( SDL_ProcessEvents[event.type] == SDL_ENABLE ) {
		event.key.state = state;
		event.key.keysym = *keysym;
		/*
		 * jk 991215 - Added
		 */
		if (repeatable && (SDL_KeyRepeat.delay != 0)) {
			SDL_KeyRepeat.evt = event;
			SDL_KeyRepeat.firsttime = 1;
			SDL_KeyRepeat.timestamp=SDL_GetTicks();
		}
		if ( (SDL_EventOK == NULL) || SDL_EventOK(&event) ) {
			posted = 1;
			SDL_PushEvent(&event);
		}
	}
	return(posted);
}

/*
 * jk 991215 - Added
 */
void SDL_CheckKeyRepeat(void)
{
	if ( SDL_KeyRepeat.timestamp ) {
		Uint32 now, interval;

		now = SDL_GetTicks();
		interval = (now - SDL_KeyRepeat.timestamp);
		if ( SDL_KeyRepeat.firsttime ) {
			if ( interval > (Uint32)SDL_KeyRepeat.delay ) {
				SDL_KeyRepeat.timestamp = now;
				SDL_KeyRepeat.firsttime = 0;
			}
		} else {
			if ( interval > (Uint32)SDL_KeyRepeat.interval ) {
				SDL_KeyRepeat.timestamp = now;
				if ( (SDL_EventOK == NULL) || SDL_EventOK(&SDL_KeyRepeat.evt) ) {
					SDL_PushEvent(&SDL_KeyRepeat.evt);
				}
			}
		}
	}
}

int SDL_EnableKeyRepeat(int delay, int interval)
{
	if ( (delay < 0) || (interval < 0) ) {
		SDL_SetError("keyboard repeat value less than zero");
		return(-1);
	}
	SDL_KeyRepeat.firsttime = 0;
	SDL_KeyRepeat.delay = delay;
	SDL_KeyRepeat.interval = interval;
	SDL_KeyRepeat.timestamp = 0;
	return(0);
}

void SDL_GetKeyRepeat(int *delay, int *interval)
{
	*delay = SDL_KeyRepeat.delay;
	*interval = SDL_KeyRepeat.interval;
}