src/video/windx5/SDL_dx5events.c
author Sam Lantinga
Sun, 21 Sep 2003 18:40:51 +0000
changeset 721 ab0656314eef
parent 717 42ed44b2c8b6
child 769 b8d311d90021
permissions -rw-r--r--
Date: Thu, 18 Sep 2003 14:24:35 -0400
From: Scott Watson
Subject: [SDL] Improper Windows message routine calling

If this hasn't been caught yet, there's an improper method of calling a
user's window message routine in the various SDL_xxevents.c files.

Calling it improperly can cause a crash under at least XP.
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002  Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Library General Public
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    License as published by the Free Software Foundation; either
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    version 2 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Library General Public License for more details.
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    You should have received a copy of the GNU Library General Public
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    License along with this library; if not, write to the Free
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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#ifdef SAVE_RCSID
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static char rcsid =
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 "@(#) $Id$";
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#endif
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/* CAUTION!!!!  If you modify this file, check ../windib/SDL_sysevents.c */
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#include "directx.h"
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#include <stdio.h>
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#include "SDL_events.h"
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#include "SDL_video.h"
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#include "SDL_error.h"
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#include "SDL_syswm.h"
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#include "SDL_sysevents.h"
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#include "SDL_events_c.h"
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#include "SDL_lowvideo.h"
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#include "SDL_dx5video.h"
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#ifndef WM_APP
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#define WM_APP	0x8000
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#endif
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#ifdef _WIN32_WCE
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#define NO_GETKEYBOARDSTATE
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#endif
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/* The keyboard and mouse device input */
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#define MAX_INPUTS	16		/* Maximum of 16-1 input devices */
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#define INPUT_QSIZE	512		/* Buffer up to 512 input messages */
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static LPDIRECTINPUT dinput = NULL;
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static LPDIRECTINPUTDEVICE2 SDL_DIdev[MAX_INPUTS];
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static HANDLE               SDL_DIevt[MAX_INPUTS];
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static void (*SDL_DIfun[MAX_INPUTS])(const int, DIDEVICEOBJECTDATA *);
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static int SDL_DIndev = 0;
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static int mouse_lost;
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static int mouse_pressed;
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static int mouse_buttons_swapped = 0;
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/* The translation table from a DirectInput scancode to an SDL keysym */
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static SDLKey DIK_keymap[256];
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static SDL_keysym *TranslateKey(UINT scancode, SDL_keysym *keysym, int pressed);
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/* DJM: If the user setup the window for us, we want to save his window proc,
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   and give him a chance to handle some messages. */
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static WNDPROC userWindowProc = NULL;
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/* Convert a DirectInput return code to a text message */
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static void SetDIerror(char *function, int code)
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{
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	static char *error;
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	static char  errbuf[1024];
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	errbuf[0] = 0;
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	switch (code) {
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                case DIERR_GENERIC:
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                        error = "Undefined error!";
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                        break;
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		case DIERR_OLDDIRECTINPUTVERSION:
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			error = "Your version of DirectInput needs upgrading";
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			break;
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		case DIERR_INVALIDPARAM:
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                        error = "Invalid parameters";
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                        break;
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                case DIERR_OUTOFMEMORY:
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                        error = "Out of memory";
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                        break;
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		case DIERR_DEVICENOTREG:
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			error = "Device not registered";
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			break;
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		case DIERR_NOINTERFACE:
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			error = "Interface not supported";
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			break;
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		case DIERR_NOTINITIALIZED:
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			error = "Device not initialized";
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			break;
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		default:
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			sprintf(errbuf, "%s: Unknown DirectInput error: 0x%x",
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								function, code);
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			break;
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	}
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	if ( ! errbuf[0] ) {
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		sprintf(errbuf, "%s: %s", function, error);
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	}
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	SDL_SetError("%s", errbuf);
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	return;
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}
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/* Initialize DirectInput
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   Note:  If NONEXCLUSIVE access is requested for the devices, normal 
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          windows input messages will continue to be generated for that
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          input device, in addition to DirectInput messages.
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 */
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static void handle_keyboard(const int numevents, DIDEVICEOBJECTDATA *events);
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static void handle_mouse(const int numevents, DIDEVICEOBJECTDATA *events);
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struct {
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	char *name;
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	REFGUID guid;
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	LPCDIDATAFORMAT format;
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	DWORD win_level;
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	DWORD raw_level;
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	void (*fun)(const int numevents, DIDEVICEOBJECTDATA *events);
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} inputs[] = {
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	{ "keyboard",
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		&GUID_SysKeyboard, &c_dfDIKeyboard,
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		(DISCL_FOREGROUND|DISCL_NONEXCLUSIVE),
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		(DISCL_FOREGROUND|DISCL_NONEXCLUSIVE), handle_keyboard },
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	{ "mouse",
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		&GUID_SysMouse, &c_dfDIMouse,
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		(DISCL_FOREGROUND|DISCL_NONEXCLUSIVE),
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		(DISCL_FOREGROUND|DISCL_EXCLUSIVE), handle_mouse },
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	{ NULL, NULL, NULL, 0, 0, NULL }
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};
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static int DX5_DInputInit(_THIS)
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{
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	int         i;
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	LPDIRECTINPUTDEVICE device;
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	HRESULT     result;
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	DIPROPDWORD dipdw;
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	/* Create the DirectInput object */
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	result = DInputCreate(SDL_Instance, DIRECTINPUT_VERSION,
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							&dinput, NULL);
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	if ( result != DI_OK ) {
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		SetDIerror("DirectInputCreate", result);
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		return(-1);
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	}
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	/* Create all of our registered input devices */
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	SDL_DIndev = 0;
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	for ( i=0; inputs[i].name; ++i ) {
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		/* Create the DirectInput device */
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		result = IDirectInput_CreateDevice(dinput, inputs[i].guid,
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								&device, NULL);
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		if ( result != DI_OK ) {
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			SetDIerror("DirectInput::CreateDevice", result);
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			return(-1);
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		}
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		result = IDirectInputDevice_QueryInterface(device,
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			&IID_IDirectInputDevice2, (LPVOID *)&SDL_DIdev[i]);
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		IDirectInputDevice_Release(device);
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		if ( result != DI_OK ) {
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			SetDIerror("DirectInputDevice::QueryInterface", result);
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			return(-1);
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		}
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		result = IDirectInputDevice2_SetCooperativeLevel(SDL_DIdev[i],
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					SDL_Window, inputs[i].win_level);
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		if ( result != DI_OK ) {
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			SetDIerror("DirectInputDevice::SetCooperativeLevel",
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									result);
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			return(-1);
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		}
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		result = IDirectInputDevice2_SetDataFormat(SDL_DIdev[i],
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							inputs[i].format);
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		if ( result != DI_OK ) {
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			SetDIerror("DirectInputDevice::SetDataFormat", result);
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			return(-1);
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		}
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		/* Set buffered input -- we aren't polling */
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		memset(&dipdw, 0, sizeof(dipdw));
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		dipdw.diph.dwSize = sizeof(dipdw);
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		dipdw.diph.dwHeaderSize = sizeof(dipdw.diph);
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		dipdw.diph.dwObj = 0;
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		dipdw.diph.dwHow = DIPH_DEVICE;
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		dipdw.dwData = INPUT_QSIZE;
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		result = IDirectInputDevice2_SetProperty(SDL_DIdev[i],
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						DIPROP_BUFFERSIZE, &dipdw.diph);
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		if ( result != DI_OK ) {
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			SetDIerror("DirectInputDevice::SetProperty", result);
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			return(-1);
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		}
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		/* Create an event to be signaled when input is ready */
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		SDL_DIevt[i] = CreateEvent(NULL, FALSE, FALSE, NULL);
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		if ( SDL_DIevt[i] == NULL ) {
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			SDL_SetError("Couldn't create DirectInput event");
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			return(-1);
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		}
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		result = IDirectInputDevice2_SetEventNotification(SDL_DIdev[i],
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								SDL_DIevt[i]);
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		if ( result != DI_OK ) {
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			SetDIerror("DirectInputDevice::SetEventNotification",
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									result);
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			return(-1);
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		}
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		SDL_DIfun[i] = inputs[i].fun;
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		/* Acquire the device for input */
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		IDirectInputDevice2_Acquire(SDL_DIdev[i]);
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		/* Increment the number of devices we have */
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		++SDL_DIndev;
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	}
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	mouse_pressed = 0;
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	mouse_buttons_swapped = GetSystemMetrics(SM_SWAPBUTTON);
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	/* DirectInput is ready! */
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	return(0);
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}
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/* Clean up DirectInput */
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static void DX5_DInputQuit(_THIS)
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{
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	int i;
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	if ( dinput != NULL ) {
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		/* Close and release all DirectInput devices */
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		for ( i=0; i<MAX_INPUTS; ++i ) {
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			if ( SDL_DIdev[i] != NULL ) {
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				IDirectInputDevice2_Unacquire(SDL_DIdev[i]);
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				IDirectInputDevice2_SetEventNotification(
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							SDL_DIdev[i], NULL);
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				if ( SDL_DIevt[i] != NULL ) {
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					CloseHandle(SDL_DIevt[i]);
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					SDL_DIevt[i] = NULL;
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				}
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				IDirectInputDevice2_Release(SDL_DIdev[i]);
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				SDL_DIdev[i] = NULL;
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			}
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		}
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		/* Release DirectInput */
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		IDirectInput_Release(dinput);
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		dinput = NULL;
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	}
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}
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/* Flag to tell SDL whether or not we queued an event */
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static int posted = 0;
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/* Input event handler functions */
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static void handle_keyboard(const int numevents, DIDEVICEOBJECTDATA *keybuf)
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{
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	int i;
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	SDL_keysym keysym;
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	/* Translate keyboard messages */
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	for ( i=0; i<numevents; ++i ) {
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		if ( keybuf[i].dwData & 0x80 ) {
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			posted = SDL_PrivateKeyboard(SDL_PRESSED,
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				    TranslateKey(keybuf[i].dwOfs, &keysym, 1));
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		} else {
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			posted = SDL_PrivateKeyboard(SDL_RELEASED,
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				    TranslateKey(keybuf[i].dwOfs, &keysym, 0));
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		}
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	}
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}
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static void handle_mouse(const int numevents, DIDEVICEOBJECTDATA *ptrbuf)
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{
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	int i;
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	Sint16 xrel, yrel;
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	Uint8 state;
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	Uint8 button;
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	DWORD timestamp = 0;
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	/* Sanity check. Mailing list reports this being NULL unexpectedly. */
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	if (SDL_PublicSurface == NULL) {
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		return;
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	}
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	/* If we are in windowed mode, Windows is taking care of the mouse */
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	if (  (SDL_PublicSurface->flags & SDL_OPENGL) ||
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	     !(SDL_PublicSurface->flags & SDL_FULLSCREEN) ) {
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		return;
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	}
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	/* If the mouse was lost, regain some sense of mouse state */
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	if ( mouse_lost ) {
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		POINT mouse_pos;
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		Uint8 old_state;
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		Uint8 new_state;
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		/* Set ourselves up with the current cursor position */
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		GetCursorPos(&mouse_pos);
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		ScreenToClient(SDL_Window, &mouse_pos);
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		posted = SDL_PrivateMouseMotion(0, 0,
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				(Sint16)mouse_pos.x, (Sint16)mouse_pos.y);
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		/* Check for mouse button changes */
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		old_state = SDL_GetMouseState(NULL, NULL);
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		new_state = 0;
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		{ /* Get the new DirectInput button state for the mouse */
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			DIMOUSESTATE distate;
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			HRESULT result;
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			result=IDirectInputDevice2_GetDeviceState(SDL_DIdev[1],
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						sizeof(distate), &distate);
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			if ( result != DI_OK ) {
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				/* Try again next time */
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				SetDIerror(
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				"IDirectInputDevice2::GetDeviceState", result);
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				return;
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			}
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			for ( i=3; i>=0; --i ) {
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				if ( (distate.rgbButtons[i]&0x80) == 0x80 ) {
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					new_state |= 0x01;
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				}
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				new_state <<= 1;
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			}
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		}
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		for ( i=0; i<8; ++i ) {
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			if ( (old_state&0x01) != (new_state&0x01) ) {
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				button = (Uint8)(i+1);
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				/* Button #2 on two button mice is button 3
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				   (the middle button is button 2)
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				 */
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				if ( button == 2 ) {
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					button = 3;
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				} else
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				if ( button == 3 ) {
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					button = 2;
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				}
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				if ( new_state & 0x01 ) {
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					/* Grab mouse so we get mouse-up */
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					if ( ++mouse_pressed > 0 ) {
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						SetCapture(SDL_Window);
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					}
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					state = SDL_PRESSED;
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				} else {
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					/* Release mouse after all mouse-ups */
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					if ( --mouse_pressed <= 0 ) {
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						ReleaseCapture();
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						mouse_pressed = 0;
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					}
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					state = SDL_RELEASED;
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				}
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				if ( mouse_buttons_swapped ) {
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					if ( button == 1 ) button = 3;
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					else
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					if ( button == 3 ) button = 1;
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				}
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				posted = SDL_PrivateMouseButton(state, button,
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									0, 0);
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			}
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			old_state >>= 1;
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			new_state >>= 1;
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		}
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		mouse_lost = 0;
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		return;
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	}
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   365
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	/* Translate mouse messages */
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	xrel = 0;
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   368
	yrel = 0;
slouken@0
   369
	for ( i=0; i<(int)numevents; ++i ) {
slouken@0
   370
		switch (ptrbuf[i].dwOfs) {
slouken@0
   371
			case DIMOFS_X:
slouken@536
   372
				if ( timestamp != ptrbuf[i].dwTimeStamp ) {
slouken@536
   373
					if ( xrel || yrel ) {
slouken@536
   374
						posted = SDL_PrivateMouseMotion(
slouken@536
   375
								0, 1, xrel, yrel);
slouken@536
   376
						xrel = 0;
slouken@536
   377
						yrel = 0;
slouken@536
   378
					}
slouken@536
   379
					timestamp = ptrbuf[i].dwTimeStamp;
slouken@536
   380
				}
slouken@0
   381
				xrel += (Sint16)ptrbuf[i].dwData;
slouken@0
   382
				break;
slouken@0
   383
			case DIMOFS_Y:
slouken@536
   384
				if ( timestamp != ptrbuf[i].dwTimeStamp ) {
slouken@536
   385
					if ( xrel || yrel ) {
slouken@536
   386
						posted = SDL_PrivateMouseMotion(
slouken@536
   387
								0, 1, xrel, yrel);
slouken@536
   388
						xrel = 0;
slouken@536
   389
						yrel = 0;
slouken@536
   390
					}
slouken@536
   391
					timestamp = ptrbuf[i].dwTimeStamp;
slouken@536
   392
				}
slouken@0
   393
				yrel += (Sint16)ptrbuf[i].dwData;
slouken@0
   394
				break;
slouken@61
   395
			case DIMOFS_Z:
slouken@61
   396
				if ( xrel || yrel ) {
slouken@61
   397
					posted = SDL_PrivateMouseMotion(
slouken@61
   398
							0, 1, xrel, yrel);
slouken@61
   399
					xrel = 0;
slouken@61
   400
					yrel = 0;
slouken@61
   401
				}
slouken@536
   402
				timestamp = 0;
slouken@61
   403
				if((int)ptrbuf[i].dwData > 0)
slouken@460
   404
					button = SDL_BUTTON_WHEELUP;
slouken@332
   405
				else
slouken@460
   406
					button = SDL_BUTTON_WHEELDOWN;
slouken@460
   407
				posted = SDL_PrivateMouseButton(
slouken@332
   408
						SDL_PRESSED, button, 0, 0);
slouken@332
   409
				posted |= SDL_PrivateMouseButton(
slouken@332
   410
						SDL_RELEASED, button, 0, 0);
slouken@61
   411
				break;
slouken@0
   412
			case DIMOFS_BUTTON0:
slouken@0
   413
			case DIMOFS_BUTTON1:
slouken@0
   414
			case DIMOFS_BUTTON2:
slouken@0
   415
			case DIMOFS_BUTTON3:
slouken@0
   416
				if ( xrel || yrel ) {
slouken@0
   417
					posted = SDL_PrivateMouseMotion(
slouken@0
   418
							0, 1, xrel, yrel);
slouken@0
   419
					xrel = 0;
slouken@0
   420
					yrel = 0;
slouken@0
   421
				}
slouken@536
   422
				timestamp = 0;
slouken@0
   423
				button = (Uint8)(ptrbuf[i].dwOfs-DIMOFS_BUTTON0)+1;
slouken@0
   424
				/* Button #2 on two button mice is button 3
slouken@0
   425
				   (the middle button is button 2)
slouken@0
   426
				 */
slouken@0
   427
				if ( button == 2 ) {
slouken@0
   428
					button = 3;
slouken@0
   429
				} else
slouken@0
   430
				if ( button == 3 ) {
slouken@0
   431
					button = 2;
slouken@0
   432
				}
slouken@0
   433
				if ( ptrbuf[i].dwData & 0x80 ) {
slouken@0
   434
					/* Grab mouse so we get mouse-up */
slouken@0
   435
					if ( ++mouse_pressed > 0 ) {
slouken@0
   436
						SetCapture(SDL_Window);
slouken@0
   437
					}
slouken@0
   438
					state = SDL_PRESSED;
slouken@0
   439
				} else {
slouken@0
   440
					/* Release mouse after all mouse-ups */
slouken@0
   441
					if ( --mouse_pressed <= 0 ) {
slouken@0
   442
						ReleaseCapture();
slouken@0
   443
						mouse_pressed = 0;
slouken@0
   444
					}
slouken@0
   445
					state = SDL_RELEASED;
slouken@0
   446
				}
slouken@491
   447
				if ( mouse_buttons_swapped ) {
slouken@491
   448
					if ( button == 1 ) button = 3;
slouken@491
   449
					else
slouken@491
   450
					if ( button == 3 ) button = 1;
slouken@491
   451
				}
slouken@0
   452
				posted = SDL_PrivateMouseButton(state, button,
slouken@0
   453
									0, 0);
slouken@0
   454
				break;
slouken@0
   455
		}
slouken@0
   456
	}
slouken@0
   457
	if ( xrel || yrel ) {
slouken@0
   458
		posted = SDL_PrivateMouseMotion( 0, 1, xrel, yrel);
slouken@0
   459
	}
slouken@0
   460
}
slouken@0
   461
slouken@0
   462
/* The main Win32 event handler */
slouken@0
   463
LONG
slouken@0
   464
 DX5_HandleMessage(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
slouken@0
   465
{
slouken@0
   466
	switch (msg) {
slouken@453
   467
#ifdef WM_ACTIVATEAPP
slouken@0
   468
		case WM_ACTIVATEAPP: {
slouken@0
   469
			int i, active;
slouken@0
   470
slouken@0
   471
			active = (wParam && (GetForegroundWindow() == hwnd));
slouken@0
   472
			if ( active ) {
slouken@0
   473
				for ( i=0; SDL_DIdev[i]; ++i ) {
slouken@0
   474
					IDirectInputDevice2_Acquire(
slouken@0
   475
								SDL_DIdev[i]);
slouken@0
   476
				}
slouken@0
   477
			} else {
slouken@0
   478
				for ( i=0; SDL_DIdev[i]; ++i ) {
slouken@0
   479
					IDirectInputDevice2_Unacquire(
slouken@0
   480
								SDL_DIdev[i]);
slouken@0
   481
				}
slouken@0
   482
				mouse_lost = 1;
slouken@0
   483
			}
slouken@0
   484
		}
slouken@0
   485
		break;
slouken@453
   486
#endif /* WM_ACTIVATEAPP */
slouken@0
   487
slouken@453
   488
#ifdef WM_DISPLAYCHANGE
slouken@0
   489
		case WM_DISPLAYCHANGE: {
slouken@0
   490
			WORD BitsPerPixel;
slouken@0
   491
			WORD SizeX, SizeY;
slouken@0
   492
slouken@0
   493
			/* Ack!  The display changed size and/or depth! */
slouken@0
   494
			SizeX = LOWORD(lParam);
slouken@0
   495
			SizeY = HIWORD(lParam);
slouken@0
   496
			BitsPerPixel = wParam;
slouken@0
   497
			/* We cause this message when we go fullscreen */
slouken@0
   498
		}
slouken@0
   499
		break;
slouken@453
   500
#endif /* WM_DISPLAYCHANGE */
slouken@0
   501
slouken@0
   502
		/* The keyboard is handled via DirectInput */
slouken@0
   503
		case WM_SYSKEYUP:
slouken@0
   504
		case WM_SYSKEYDOWN:
slouken@0
   505
		case WM_KEYUP:
slouken@0
   506
		case WM_KEYDOWN: {
slouken@0
   507
			/* Ignore windows keyboard messages */;
slouken@0
   508
		}
slouken@0
   509
		return(0);
slouken@0
   510
slouken@453
   511
#if defined(SC_SCREENSAVE) || defined(SC_MONITORPOWER)
slouken@0
   512
		/* Don't allow screen savers or monitor power downs.
slouken@0
   513
		   This is because they quietly clear DirectX surfaces.
slouken@0
   514
		   It would be better to allow the application to
slouken@0
   515
		   decide whether or not to blow these off, but the
slouken@0
   516
		   semantics of SDL_PrivateSysWMEvent() don't allow
slouken@0
   517
		   the application that choice.
slouken@0
   518
		 */
slouken@0
   519
		case WM_SYSCOMMAND: {
slouken@0
   520
			if ((wParam&0xFFF0)==SC_SCREENSAVE || 
slouken@0
   521
			    (wParam&0xFFF0)==SC_MONITORPOWER)
slouken@0
   522
				return(0);
slouken@0
   523
		}
slouken@453
   524
		/* Fall through to default processing */
slouken@453
   525
slouken@453
   526
#endif /* SC_SCREENSAVE || SC_MONITORPOWER */
slouken@0
   527
slouken@0
   528
		default: {
slouken@0
   529
			/* Only post the event if we're watching for it */
slouken@0
   530
			if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {
slouken@0
   531
			        SDL_SysWMmsg wmmsg;
slouken@0
   532
slouken@0
   533
				SDL_VERSION(&wmmsg.version);
slouken@0
   534
				wmmsg.hwnd = hwnd;
slouken@0
   535
				wmmsg.msg = msg;
slouken@0
   536
				wmmsg.wParam = wParam;
slouken@0
   537
				wmmsg.lParam = lParam;
slouken@0
   538
				posted = SDL_PrivateSysWMEvent(&wmmsg);
slouken@145
   539
slouken@721
   540
			/* DJM: If the user isn't watching for private
slouken@721
   541
				messages in her SDL event loop, then pass it
slouken@721
   542
				along to any win32 specific window proc.
slouken@721
   543
			 */
slouken@721
   544
			} else if (userWindowProc) {
slouken@721
   545
				return CallWindowProc(userWindowProc, hwnd, msg, wParam, lParam);
slouken@721
   546
			}
slouken@0
   547
		}
slouken@0
   548
		break;
slouken@0
   549
	}
slouken@0
   550
	return(DefWindowProc(hwnd, msg, wParam, lParam));
slouken@0
   551
}
slouken@0
   552
slouken@0
   553
/* This function checks the windows message queue and DirectInput and returns
slouken@0
   554
   1 if there was input, 0 if there was no input, or -1 if the application has
slouken@0
   555
   posted a quit message.
slouken@0
   556
*/
slouken@460
   557
static int DX5_CheckInput(_THIS, int timeout, BOOL processInput)
slouken@0
   558
{
slouken@0
   559
	MSG msg;
slouken@0
   560
	int      i;
slouken@0
   561
	HRESULT  result;
slouken@0
   562
	DWORD    event;
slouken@0
   563
slouken@0
   564
	/* Check the normal windows queue (highest preference) */
slouken@0
   565
	posted = 0;
slouken@0
   566
	while ( ! posted &&
slouken@523
   567
	        PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) ) {
slouken@523
   568
		if ( GetMessage(&msg, NULL, 0, 0) > 0 ) {
slouken@0
   569
			DispatchMessage(&msg);
slouken@0
   570
		} else {
slouken@0
   571
			return(-1);
slouken@0
   572
		}
slouken@0
   573
	}
slouken@0
   574
	if ( posted ) {
slouken@0
   575
		return(1);
slouken@0
   576
	}
slouken@0
   577
slouken@0
   578
	/* Pump the DirectInput flow */
slouken@0
   579
	if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) {
slouken@0
   580
		for ( i=0; i<SDL_DIndev; ++i ) {
slouken@0
   581
			result = IDirectInputDevice2_Poll(SDL_DIdev[i]);
slouken@0
   582
			if ( (result == DIERR_INPUTLOST) ||
slouken@0
   583
					(result == DIERR_NOTACQUIRED) ) {
slouken@0
   584
				if ( strcmp(inputs[i].name, "mouse") == 0 ) {
slouken@0
   585
					mouse_lost = 1;
slouken@0
   586
				}
slouken@0
   587
				IDirectInputDevice2_Acquire(SDL_DIdev[i]);
slouken@0
   588
				IDirectInputDevice2_Poll(SDL_DIdev[i]);
slouken@0
   589
			}
slouken@0
   590
		}
slouken@0
   591
	}
slouken@0
   592
slouken@0
   593
	/* Wait for messages and input events */
slouken@0
   594
	event = MsgWaitForMultipleObjects(SDL_DIndev, SDL_DIevt, FALSE,
slouken@0
   595
							timeout, QS_ALLEVENTS);
slouken@0
   596
	if ((event >= WAIT_OBJECT_0) && (event < (WAIT_OBJECT_0+SDL_DIndev))) {
slouken@0
   597
		DWORD numevents;
slouken@0
   598
		DIDEVICEOBJECTDATA evtbuf[INPUT_QSIZE];
slouken@0
   599
slouken@0
   600
		event -= WAIT_OBJECT_0;
slouken@0
   601
		numevents = INPUT_QSIZE;
slouken@0
   602
		result = IDirectInputDevice2_GetDeviceData(
slouken@0
   603
				SDL_DIdev[event], sizeof(DIDEVICEOBJECTDATA),
slouken@0
   604
							evtbuf, &numevents, 0);
slouken@0
   605
		if ( (result == DIERR_INPUTLOST) ||
slouken@0
   606
					(result == DIERR_NOTACQUIRED) ) {
slouken@0
   607
			if ( strcmp(inputs[event].name, "mouse") == 0 ) {
slouken@0
   608
				mouse_lost = 1;
slouken@0
   609
			}
slouken@0
   610
			IDirectInputDevice2_Acquire(SDL_DIdev[event]);
slouken@0
   611
			result = IDirectInputDevice2_GetDeviceData(
slouken@0
   612
				SDL_DIdev[event], sizeof(DIDEVICEOBJECTDATA),
slouken@0
   613
							evtbuf, &numevents, 0);
slouken@0
   614
		}
slouken@0
   615
		/* Handle the events */
slouken@460
   616
		if ( result == DI_OK && processInput ) {
slouken@0
   617
			/* Note: This can post multiple events to event queue
slouken@0
   618
			 */
slouken@0
   619
			(*SDL_DIfun[event])((int)numevents, evtbuf);
slouken@0
   620
			return(1);
slouken@0
   621
		}
slouken@0
   622
	}
slouken@0
   623
	if ( event != WAIT_TIMEOUT ) {
slouken@0
   624
		/* Maybe there was a windows message? */
slouken@0
   625
		if ( PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) ) {
slouken@0
   626
			if ( GetMessage(&msg, NULL, 0, 0) > 0 ) {
slouken@0
   627
				DispatchMessage(&msg);
slouken@0
   628
			} else {
slouken@0
   629
				return(-1);
slouken@0
   630
			}
slouken@0
   631
			return(1);
slouken@0
   632
		}
slouken@0
   633
	}
slouken@0
   634
	return(0);
slouken@0
   635
}
slouken@0
   636
slouken@460
   637
/* Change cooperative level based on whether or not we are fullscreen */
slouken@460
   638
void DX5_DInputReset(_THIS, int fullscreen)
slouken@460
   639
{
slouken@460
   640
	DWORD level;
slouken@460
   641
	int i;
slouken@460
   642
	HRESULT result;
slouken@460
   643
slouken@460
   644
	for ( i=0; i<MAX_INPUTS; ++i ) {
slouken@460
   645
		if ( SDL_DIdev[i] != NULL ) {
slouken@460
   646
			if ( fullscreen ) {
slouken@460
   647
				level = inputs[i].raw_level;
slouken@460
   648
			} else {
slouken@460
   649
				level = inputs[i].win_level;
slouken@460
   650
			}
slouken@460
   651
			IDirectInputDevice2_Unacquire(SDL_DIdev[i]);
slouken@460
   652
			result = IDirectInputDevice2_SetCooperativeLevel(
slouken@460
   653
					SDL_DIdev[i], SDL_Window, level);
slouken@460
   654
			IDirectInputDevice2_Acquire(SDL_DIdev[i]);
slouken@460
   655
			if ( result != DI_OK ) {
slouken@460
   656
				SetDIerror(
slouken@460
   657
			"DirectInputDevice::SetCooperativeLevel", result);
slouken@460
   658
			}
slouken@460
   659
		}
slouken@460
   660
	}
slouken@460
   661
	mouse_lost = 1;
slouken@460
   662
slouken@460
   663
	/* Flush pending input */
slouken@460
   664
	DX5_CheckInput(this, 0, FALSE);
slouken@460
   665
}
slouken@460
   666
slouken@0
   667
void DX5_PumpEvents(_THIS)
slouken@0
   668
{
slouken@0
   669
	/* Wait for messages and DirectInput */
slouken@460
   670
	while ( DX5_CheckInput(this, 0, TRUE) > 0 ) {
slouken@0
   671
		/* Loop and check again */;
slouken@0
   672
	}
slouken@0
   673
}
slouken@0
   674
slouken@0
   675
void DX5_InitOSKeymap(_THIS)
slouken@0
   676
{
slouken@275
   677
#ifndef DIK_PAUSE
slouken@275
   678
#define DIK_PAUSE	0xC5
slouken@275
   679
#endif
slouken@327
   680
#ifndef DIK_OEM_102
slouken@327
   681
#define DIK_OEM_102	0x56	/* < > | on UK/Germany keyboards */
slouken@327
   682
#endif
slouken@0
   683
	int i;
slouken@0
   684
slouken@0
   685
	/* Map the DIK scancodes to SDL keysyms */
slouken@0
   686
	for ( i=0; i<SDL_TABLESIZE(DIK_keymap); ++i )
slouken@0
   687
		DIK_keymap[i] = 0;
slouken@0
   688
slouken@0
   689
	/* Defined DIK_* constants */
slouken@0
   690
	DIK_keymap[DIK_ESCAPE] = SDLK_ESCAPE;
slouken@0
   691
	DIK_keymap[DIK_1] = SDLK_1;
slouken@0
   692
	DIK_keymap[DIK_2] = SDLK_2;
slouken@0
   693
	DIK_keymap[DIK_3] = SDLK_3;
slouken@0
   694
	DIK_keymap[DIK_4] = SDLK_4;
slouken@0
   695
	DIK_keymap[DIK_5] = SDLK_5;
slouken@0
   696
	DIK_keymap[DIK_6] = SDLK_6;
slouken@0
   697
	DIK_keymap[DIK_7] = SDLK_7;
slouken@0
   698
	DIK_keymap[DIK_8] = SDLK_8;
slouken@0
   699
	DIK_keymap[DIK_9] = SDLK_9;
slouken@0
   700
	DIK_keymap[DIK_0] = SDLK_0;
slouken@0
   701
	DIK_keymap[DIK_MINUS] = SDLK_MINUS;
slouken@0
   702
	DIK_keymap[DIK_EQUALS] = SDLK_EQUALS;
slouken@0
   703
	DIK_keymap[DIK_BACK] = SDLK_BACKSPACE;
slouken@0
   704
	DIK_keymap[DIK_TAB] = SDLK_TAB;
slouken@0
   705
	DIK_keymap[DIK_Q] = SDLK_q;
slouken@0
   706
	DIK_keymap[DIK_W] = SDLK_w;
slouken@0
   707
	DIK_keymap[DIK_E] = SDLK_e;
slouken@0
   708
	DIK_keymap[DIK_R] = SDLK_r;
slouken@0
   709
	DIK_keymap[DIK_T] = SDLK_t;
slouken@0
   710
	DIK_keymap[DIK_Y] = SDLK_y;
slouken@0
   711
	DIK_keymap[DIK_U] = SDLK_u;
slouken@0
   712
	DIK_keymap[DIK_I] = SDLK_i;
slouken@0
   713
	DIK_keymap[DIK_O] = SDLK_o;
slouken@0
   714
	DIK_keymap[DIK_P] = SDLK_p;
slouken@0
   715
	DIK_keymap[DIK_LBRACKET] = SDLK_LEFTBRACKET;
slouken@0
   716
	DIK_keymap[DIK_RBRACKET] = SDLK_RIGHTBRACKET;
slouken@0
   717
	DIK_keymap[DIK_RETURN] = SDLK_RETURN;
slouken@0
   718
	DIK_keymap[DIK_LCONTROL] = SDLK_LCTRL;
slouken@0
   719
	DIK_keymap[DIK_A] = SDLK_a;
slouken@0
   720
	DIK_keymap[DIK_S] = SDLK_s;
slouken@0
   721
	DIK_keymap[DIK_D] = SDLK_d;
slouken@0
   722
	DIK_keymap[DIK_F] = SDLK_f;
slouken@0
   723
	DIK_keymap[DIK_G] = SDLK_g;
slouken@0
   724
	DIK_keymap[DIK_H] = SDLK_h;
slouken@0
   725
	DIK_keymap[DIK_J] = SDLK_j;
slouken@0
   726
	DIK_keymap[DIK_K] = SDLK_k;
slouken@0
   727
	DIK_keymap[DIK_L] = SDLK_l;
slouken@0
   728
	DIK_keymap[DIK_SEMICOLON] = SDLK_SEMICOLON;
slouken@0
   729
	DIK_keymap[DIK_APOSTROPHE] = SDLK_QUOTE;
slouken@0
   730
	DIK_keymap[DIK_GRAVE] = SDLK_BACKQUOTE;
slouken@0
   731
	DIK_keymap[DIK_LSHIFT] = SDLK_LSHIFT;
slouken@0
   732
	DIK_keymap[DIK_BACKSLASH] = SDLK_BACKSLASH;
slouken@327
   733
	DIK_keymap[DIK_OEM_102] = SDLK_BACKSLASH;
slouken@0
   734
	DIK_keymap[DIK_Z] = SDLK_z;
slouken@0
   735
	DIK_keymap[DIK_X] = SDLK_x;
slouken@0
   736
	DIK_keymap[DIK_C] = SDLK_c;
slouken@0
   737
	DIK_keymap[DIK_V] = SDLK_v;
slouken@0
   738
	DIK_keymap[DIK_B] = SDLK_b;
slouken@0
   739
	DIK_keymap[DIK_N] = SDLK_n;
slouken@0
   740
	DIK_keymap[DIK_M] = SDLK_m;
slouken@0
   741
	DIK_keymap[DIK_COMMA] = SDLK_COMMA;
slouken@0
   742
	DIK_keymap[DIK_PERIOD] = SDLK_PERIOD;
slouken@0
   743
	DIK_keymap[DIK_SLASH] = SDLK_SLASH;
slouken@0
   744
	DIK_keymap[DIK_RSHIFT] = SDLK_RSHIFT;
slouken@0
   745
	DIK_keymap[DIK_MULTIPLY] = SDLK_KP_MULTIPLY;
slouken@0
   746
	DIK_keymap[DIK_LMENU] = SDLK_LALT;
slouken@0
   747
	DIK_keymap[DIK_SPACE] = SDLK_SPACE;
slouken@0
   748
	DIK_keymap[DIK_CAPITAL] = SDLK_CAPSLOCK;
slouken@0
   749
	DIK_keymap[DIK_F1] = SDLK_F1;
slouken@0
   750
	DIK_keymap[DIK_F2] = SDLK_F2;
slouken@0
   751
	DIK_keymap[DIK_F3] = SDLK_F3;
slouken@0
   752
	DIK_keymap[DIK_F4] = SDLK_F4;
slouken@0
   753
	DIK_keymap[DIK_F5] = SDLK_F5;
slouken@0
   754
	DIK_keymap[DIK_F6] = SDLK_F6;
slouken@0
   755
	DIK_keymap[DIK_F7] = SDLK_F7;
slouken@0
   756
	DIK_keymap[DIK_F8] = SDLK_F8;
slouken@0
   757
	DIK_keymap[DIK_F9] = SDLK_F9;
slouken@0
   758
	DIK_keymap[DIK_F10] = SDLK_F10;
slouken@0
   759
	DIK_keymap[DIK_NUMLOCK] = SDLK_NUMLOCK;
slouken@0
   760
	DIK_keymap[DIK_SCROLL] = SDLK_SCROLLOCK;
slouken@0
   761
	DIK_keymap[DIK_NUMPAD7] = SDLK_KP7;
slouken@0
   762
	DIK_keymap[DIK_NUMPAD8] = SDLK_KP8;
slouken@0
   763
	DIK_keymap[DIK_NUMPAD9] = SDLK_KP9;
slouken@0
   764
	DIK_keymap[DIK_SUBTRACT] = SDLK_KP_MINUS;
slouken@0
   765
	DIK_keymap[DIK_NUMPAD4] = SDLK_KP4;
slouken@0
   766
	DIK_keymap[DIK_NUMPAD5] = SDLK_KP5;
slouken@0
   767
	DIK_keymap[DIK_NUMPAD6] = SDLK_KP6;
slouken@0
   768
	DIK_keymap[DIK_ADD] = SDLK_KP_PLUS;
slouken@0
   769
	DIK_keymap[DIK_NUMPAD1] = SDLK_KP1;
slouken@0
   770
	DIK_keymap[DIK_NUMPAD2] = SDLK_KP2;
slouken@0
   771
	DIK_keymap[DIK_NUMPAD3] = SDLK_KP3;
slouken@0
   772
	DIK_keymap[DIK_NUMPAD0] = SDLK_KP0;
slouken@0
   773
	DIK_keymap[DIK_DECIMAL] = SDLK_KP_PERIOD;
slouken@0
   774
	DIK_keymap[DIK_F11] = SDLK_F11;
slouken@0
   775
	DIK_keymap[DIK_F12] = SDLK_F12;
slouken@0
   776
slouken@0
   777
	DIK_keymap[DIK_F13] = SDLK_F13;
slouken@0
   778
	DIK_keymap[DIK_F14] = SDLK_F14;
slouken@0
   779
	DIK_keymap[DIK_F15] = SDLK_F15;
slouken@0
   780
slouken@0
   781
	DIK_keymap[DIK_NUMPADEQUALS] = SDLK_KP_EQUALS;
slouken@0
   782
	DIK_keymap[DIK_NUMPADENTER] = SDLK_KP_ENTER;
slouken@0
   783
	DIK_keymap[DIK_RCONTROL] = SDLK_RCTRL;
slouken@0
   784
	DIK_keymap[DIK_DIVIDE] = SDLK_KP_DIVIDE;
slouken@0
   785
	DIK_keymap[DIK_SYSRQ] = SDLK_SYSREQ;
slouken@0
   786
	DIK_keymap[DIK_RMENU] = SDLK_RALT;
slouken@290
   787
	DIK_keymap[DIK_PAUSE] = SDLK_PAUSE;
slouken@0
   788
	DIK_keymap[DIK_HOME] = SDLK_HOME;
slouken@0
   789
	DIK_keymap[DIK_UP] = SDLK_UP;
slouken@0
   790
	DIK_keymap[DIK_PRIOR] = SDLK_PAGEUP;
slouken@0
   791
	DIK_keymap[DIK_LEFT] = SDLK_LEFT;
slouken@0
   792
	DIK_keymap[DIK_RIGHT] = SDLK_RIGHT;
slouken@0
   793
	DIK_keymap[DIK_END] = SDLK_END;
slouken@0
   794
	DIK_keymap[DIK_DOWN] = SDLK_DOWN;
slouken@0
   795
	DIK_keymap[DIK_NEXT] = SDLK_PAGEDOWN;
slouken@0
   796
	DIK_keymap[DIK_INSERT] = SDLK_INSERT;
slouken@0
   797
	DIK_keymap[DIK_DELETE] = SDLK_DELETE;
slouken@0
   798
	DIK_keymap[DIK_LWIN] = SDLK_LMETA;
slouken@0
   799
	DIK_keymap[DIK_RWIN] = SDLK_RMETA;
slouken@0
   800
	DIK_keymap[DIK_APPS] = SDLK_MENU;
slouken@0
   801
}
slouken@0
   802
slouken@0
   803
static SDL_keysym *TranslateKey(UINT scancode, SDL_keysym *keysym, int pressed)
slouken@0
   804
{
slouken@0
   805
	/* Set the keysym information */
slouken@0
   806
	keysym->scancode = (unsigned char)scancode;
slouken@0
   807
	keysym->sym = DIK_keymap[scancode];
slouken@0
   808
	keysym->mod = KMOD_NONE;
slouken@0
   809
	keysym->unicode = 0;
slouken@0
   810
	if ( pressed && SDL_TranslateUNICODE ) { /* Someday use ToUnicode() */
slouken@0
   811
		UINT vkey;
slouken@453
   812
#ifndef NO_GETKEYBOARDSTATE
slouken@0
   813
		BYTE keystate[256];
slouken@0
   814
		BYTE chars[2];
slouken@453
   815
#endif
slouken@0
   816
slouken@0
   817
		vkey = MapVirtualKey(scancode, 1);
slouken@453
   818
#ifdef NO_GETKEYBOARDSTATE
slouken@453
   819
		/* Uh oh, better hope the vkey is close enough.. */
slouken@453
   820
		keysym->unicode = vkey;
slouken@453
   821
#else
slouken@0
   822
		GetKeyboardState(keystate);
slouken@0
   823
		if ( ToAscii(vkey,scancode,keystate,(WORD *)chars,0) == 1 ) {
slouken@0
   824
			keysym->unicode = chars[0];
slouken@0
   825
		}
slouken@453
   826
#endif
slouken@0
   827
	}
slouken@0
   828
	return(keysym);
slouken@0
   829
}
slouken@0
   830
slouken@0
   831
int DX5_CreateWindow(_THIS)
slouken@0
   832
{
slouken@0
   833
	int i;
slouken@0
   834
slouken@0
   835
	/* Clear out DirectInput variables in case we fail */
slouken@0
   836
	for ( i=0; i<MAX_INPUTS; ++i ) {
slouken@0
   837
		SDL_DIdev[i] = NULL;
slouken@0
   838
		SDL_DIevt[i] = NULL;
slouken@0
   839
		SDL_DIfun[i] = NULL;
slouken@0
   840
	}
slouken@0
   841
slouken@453
   842
#ifndef CS_BYTEALIGNCLIENT
slouken@453
   843
#define CS_BYTEALIGNCLIENT	0
slouken@453
   844
#endif
slouken@0
   845
	SDL_RegisterApp("SDL_app", CS_BYTEALIGNCLIENT, 0);
slouken@0
   846
	if ( SDL_windowid ) {
slouken@0
   847
		SDL_Window = (HWND)strtol(SDL_windowid, NULL, 0);
slouken@145
   848
slouken@458
   849
		/* DJM: we want all event's for the user specified
slouken@458
   850
		   window to be handled by SDL.
slouken@458
   851
		 */
slouken@458
   852
		if (SDL_Window) {
slouken@458
   853
			userWindowProc = (WNDPROC)GetWindowLong(SDL_Window, GWL_WNDPROC);
slouken@458
   854
			SetWindowLong(SDL_Window, GWL_WNDPROC, (LONG)WinMessage);
slouken@458
   855
		}
slouken@0
   856
	} else {
slouken@0
   857
		SDL_Window = CreateWindow(SDL_Appname, SDL_Appname,
slouken@0
   858
                        (WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX),
slouken@0
   859
                                 0, 0, 0, 0, NULL, NULL, SDL_Instance, NULL);
slouken@0
   860
		if ( SDL_Window == NULL ) {
slouken@0
   861
			SDL_SetError("Couldn't create window");
slouken@0
   862
			return(-1);
slouken@0
   863
		}
slouken@0
   864
		ShowWindow(SDL_Window, SW_HIDE);
slouken@0
   865
	}
slouken@0
   866
slouken@0
   867
	/* Initialize DirectInput */
slouken@0
   868
	if ( DX5_DInputInit(this) < 0 ) {
slouken@0
   869
		return(-1);
slouken@0
   870
	}
slouken@0
   871
slouken@0
   872
	/* Ready to roll */
slouken@0
   873
	return(0);
slouken@0
   874
}
slouken@0
   875
slouken@0
   876
void DX5_DestroyWindow(_THIS)
slouken@0
   877
{
slouken@0
   878
	/* Close down DirectInput */
slouken@0
   879
	DX5_DInputQuit(this);
slouken@0
   880
slouken@0
   881
	/* Destroy our window */
slouken@0
   882
	DestroyWindow(SDL_Window);
slouken@0
   883
}