diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/joystick/win32/SDL_mmjoystick.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/joystick/win32/SDL_mmjoystick.c | 405 |
1 files changed, 0 insertions, 405 deletions
diff --git a/distrib/sdl-1.2.12/src/joystick/win32/SDL_mmjoystick.c b/distrib/sdl-1.2.12/src/joystick/win32/SDL_mmjoystick.c deleted file mode 100644 index e71f8f8..0000000 --- a/distrib/sdl-1.2.12/src/joystick/win32/SDL_mmjoystick.c +++ /dev/null @@ -1,405 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 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" - -#ifdef SDL_JOYSTICK_WINMM - -/* Win32 MultiMedia Joystick driver, contributed by Andrei de A. Formiga */ - -#define WIN32_LEAN_AND_MEAN -#include <windows.h> -#include <mmsystem.h> -#include <regstr.h> - -#include "SDL_events.h" -#include "SDL_joystick.h" -#include "../SDL_sysjoystick.h" -#include "../SDL_joystick_c.h" - -#define MAX_JOYSTICKS 16 -#define MAX_AXES 6 /* each joystick can have up to 6 axes */ -#define MAX_BUTTONS 32 /* and 32 buttons */ -#define AXIS_MIN -32768 /* minimum value for axis coordinate */ -#define AXIS_MAX 32767 /* maximum value for axis coordinate */ -/* limit axis to 256 possible positions to filter out noise */ -#define JOY_AXIS_THRESHOLD (((AXIS_MAX)-(AXIS_MIN))/256) -#define JOY_BUTTON_FLAG(n) (1<<n) - - -/* array to hold joystick ID values */ -static UINT SYS_JoystickID[MAX_JOYSTICKS]; -static JOYCAPS SYS_Joystick[MAX_JOYSTICKS]; -static char *SYS_JoystickName[MAX_JOYSTICKS]; - -/* The private structure used to keep track of a joystick */ -struct joystick_hwdata -{ - /* joystick ID */ - UINT id; - - /* values used to translate device-specific coordinates into - SDL-standard ranges */ - struct _transaxis { - int offset; - float scale; - } transaxis[6]; -}; - -/* Convert a win32 Multimedia API return code to a text message */ -static void SetMMerror(char *function, int code); - - -static char *GetJoystickName(int index, const char *szRegKey) -{ - /* added 7/24/2004 by Eckhard Stolberg */ - /* - see if there is a joystick for the current - index (1-16) listed in the registry - */ - char *name = NULL; - HKEY hTopKey; - HKEY hKey; - DWORD regsize; - LONG regresult; - char regkey[256]; - char regvalue[256]; - char regname[256]; - - SDL_snprintf(regkey, SDL_arraysize(regkey), "%s\\%s\\%s", - REGSTR_PATH_JOYCONFIG, szRegKey, REGSTR_KEY_JOYCURR); - hTopKey = HKEY_LOCAL_MACHINE; - regresult = RegOpenKeyExA(hTopKey, regkey, 0, KEY_READ, &hKey); - if (regresult != ERROR_SUCCESS) { - hTopKey = HKEY_CURRENT_USER; - regresult = RegOpenKeyExA(hTopKey, regkey, 0, KEY_READ, &hKey); - } - if (regresult != ERROR_SUCCESS) { - return NULL; - } - - /* find the registry key name for the joystick's properties */ - regsize = sizeof(regname); - SDL_snprintf(regvalue, SDL_arraysize(regvalue), "Joystick%d%s", index+1, REGSTR_VAL_JOYOEMNAME); - regresult = RegQueryValueExA(hKey, regvalue, 0, 0, (LPBYTE)regname, ®size); - RegCloseKey(hKey); - - if (regresult != ERROR_SUCCESS) { - return NULL; - } - - /* open that registry key */ - SDL_snprintf(regkey, SDL_arraysize(regkey), "%s\\%s", REGSTR_PATH_JOYOEM, regname); - regresult = RegOpenKeyExA(hTopKey, regkey, 0, KEY_READ, &hKey); - if (regresult != ERROR_SUCCESS) { - return NULL; - } - - /* find the size for the OEM name text */ - regsize = sizeof(regvalue); - regresult = RegQueryValueExA(hKey, REGSTR_VAL_JOYOEMNAME, 0, 0, NULL, ®size); - if (regresult == ERROR_SUCCESS) { - /* allocate enough memory for the OEM name text ... */ - name = (char *) SDL_malloc(regsize); - if ( name ) { - /* ... and read it from the registry */ - regresult = RegQueryValueExA(hKey, - REGSTR_VAL_JOYOEMNAME, 0, 0, - (LPBYTE) name, ®size); - } - } - RegCloseKey(hKey); - - return(name); -} - -/* Function to scan the system for joysticks. - * This function should set SDL_numjoysticks to the number of available - * joysticks. Joystick 0 should be the system default joystick. - * It should return 0, or -1 on an unrecoverable fatal error. - */ -int SDL_SYS_JoystickInit(void) -{ - int i; - int maxdevs; - int numdevs; - JOYINFOEX joyinfo; - JOYCAPS joycaps; - MMRESULT result; - - /* Reset the joystick ID & name mapping tables */ - for ( i = 0; i < MAX_JOYSTICKS; ++i ) { - SYS_JoystickID[i] = 0; - SYS_JoystickName[i] = NULL; - } - - /* Loop over all potential joystick devices */ - numdevs = 0; - maxdevs = joyGetNumDevs(); - for ( i = JOYSTICKID1; i < maxdevs && numdevs < MAX_JOYSTICKS; ++i ) { - - joyinfo.dwSize = sizeof(joyinfo); - joyinfo.dwFlags = JOY_RETURNALL; - result = joyGetPosEx(i, &joyinfo); - if ( result == JOYERR_NOERROR ) { - result = joyGetDevCaps(i, &joycaps, sizeof(joycaps)); - if ( result == JOYERR_NOERROR ) { - SYS_JoystickID[numdevs] = i; - SYS_Joystick[numdevs] = joycaps; - SYS_JoystickName[numdevs] = GetJoystickName(i, joycaps.szRegKey); - numdevs++; - } - } - } - return(numdevs); -} - -/* Function to get the device-dependent name of a joystick */ -const char *SDL_SYS_JoystickName(int index) -{ - if ( SYS_JoystickName[index] != NULL ) { - return(SYS_JoystickName[index]); - } else { - return(SYS_Joystick[index].szPname); - } -} - -/* Function to open a joystick for use. - The joystick to open is specified by the index field of the joystick. - This should fill the nbuttons and naxes fields of the joystick structure. - It returns 0, or -1 if there is an error. - */ -int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) -{ - int index, i; - int caps_flags[MAX_AXES-2] = - { JOYCAPS_HASZ, JOYCAPS_HASR, JOYCAPS_HASU, JOYCAPS_HASV }; - int axis_min[MAX_AXES], axis_max[MAX_AXES]; - - - /* shortcut */ - index = joystick->index; - axis_min[0] = SYS_Joystick[index].wXmin; - axis_max[0] = SYS_Joystick[index].wXmax; - axis_min[1] = SYS_Joystick[index].wYmin; - axis_max[1] = SYS_Joystick[index].wYmax; - axis_min[2] = SYS_Joystick[index].wZmin; - axis_max[2] = SYS_Joystick[index].wZmax; - axis_min[3] = SYS_Joystick[index].wRmin; - axis_max[3] = SYS_Joystick[index].wRmax; - axis_min[4] = SYS_Joystick[index].wUmin; - axis_max[4] = SYS_Joystick[index].wUmax; - axis_min[5] = SYS_Joystick[index].wVmin; - axis_max[5] = SYS_Joystick[index].wVmax; - - /* allocate memory for system specific hardware data */ - joystick->hwdata = (struct joystick_hwdata *) SDL_malloc(sizeof(*joystick->hwdata)); - if (joystick->hwdata == NULL) - { - SDL_OutOfMemory(); - return(-1); - } - SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); - - /* set hardware data */ - joystick->hwdata->id = SYS_JoystickID[index]; - for ( i = 0; i < MAX_AXES; ++i ) { - if ( (i<2) || (SYS_Joystick[index].wCaps & caps_flags[i-2]) ) { - joystick->hwdata->transaxis[i].offset = - AXIS_MIN - axis_min[i]; - joystick->hwdata->transaxis[i].scale = - (float)(AXIS_MAX - AXIS_MIN) / (axis_max[i] - axis_min[i]); - } else { - joystick->hwdata->transaxis[i].offset = 0; - joystick->hwdata->transaxis[i].scale = 1.0; /* Just in case */ - } - } - - /* fill nbuttons, naxes, and nhats fields */ - joystick->nbuttons = SYS_Joystick[index].wNumButtons; - joystick->naxes = SYS_Joystick[index].wNumAxes; - if ( SYS_Joystick[index].wCaps & JOYCAPS_HASPOV ) { - joystick->nhats = 1; - } else { - joystick->nhats = 0; - } - return(0); -} - -static Uint8 TranslatePOV(DWORD value) -{ - Uint8 pos; - - pos = SDL_HAT_CENTERED; - if ( value != JOY_POVCENTERED ) { - if ( (value > JOY_POVLEFT) || (value < JOY_POVRIGHT) ) { - pos |= SDL_HAT_UP; - } - if ( (value > JOY_POVFORWARD) && (value < JOY_POVBACKWARD) ) { - pos |= SDL_HAT_RIGHT; - } - if ( (value > JOY_POVRIGHT) && (value < JOY_POVLEFT) ) { - pos |= SDL_HAT_DOWN; - } - if ( value > JOY_POVBACKWARD ) { - pos |= SDL_HAT_LEFT; - } - } - return(pos); -} - -/* Function to update the state of a joystick - called as a device poll. - * This function shouldn't update the joystick structure directly, - * but instead should call SDL_PrivateJoystick*() to deliver events - * and update joystick device state. - */ -void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) -{ - MMRESULT result; - int i; - DWORD flags[MAX_AXES] = { JOY_RETURNX, JOY_RETURNY, JOY_RETURNZ, - JOY_RETURNR, JOY_RETURNU, JOY_RETURNV }; - DWORD pos[MAX_AXES]; - struct _transaxis *transaxis; - int value, change; - JOYINFOEX joyinfo; - - joyinfo.dwSize = sizeof(joyinfo); - joyinfo.dwFlags = JOY_RETURNALL|JOY_RETURNPOVCTS; - if ( ! joystick->hats ) { - joyinfo.dwFlags &= ~(JOY_RETURNPOV|JOY_RETURNPOVCTS); - } - result = joyGetPosEx(joystick->hwdata->id, &joyinfo); - if ( result != JOYERR_NOERROR ) { - SetMMerror("joyGetPosEx", result); - return; - } - - /* joystick motion events */ - pos[0] = joyinfo.dwXpos; - pos[1] = joyinfo.dwYpos; - pos[2] = joyinfo.dwZpos; - pos[3] = joyinfo.dwRpos; - pos[4] = joyinfo.dwUpos; - pos[5] = joyinfo.dwVpos; - - transaxis = joystick->hwdata->transaxis; - for (i = 0; i < joystick->naxes; i++) { - if (joyinfo.dwFlags & flags[i]) { - value = (int)(((float)pos[i] + transaxis[i].offset) * transaxis[i].scale); - change = (value - joystick->axes[i]); - if ( (change < -JOY_AXIS_THRESHOLD) || (change > JOY_AXIS_THRESHOLD) ) { - SDL_PrivateJoystickAxis(joystick, (Uint8)i, (Sint16)value); - } - } - } - - /* joystick button events */ - if ( joyinfo.dwFlags & JOY_RETURNBUTTONS ) { - for ( i = 0; i < joystick->nbuttons; ++i ) { - if ( joyinfo.dwButtons & JOY_BUTTON_FLAG(i) ) { - if ( ! joystick->buttons[i] ) { - SDL_PrivateJoystickButton(joystick, (Uint8)i, SDL_PRESSED); - } - } else { - if ( joystick->buttons[i] ) { - SDL_PrivateJoystickButton(joystick, (Uint8)i, SDL_RELEASED); - } - } - } - } - - /* joystick hat events */ - if ( joyinfo.dwFlags & JOY_RETURNPOV ) { - Uint8 pos; - - pos = TranslatePOV(joyinfo.dwPOV); - if ( pos != joystick->hats[0] ) { - SDL_PrivateJoystickHat(joystick, 0, pos); - } - } -} - -/* Function to close a joystick after use */ -void SDL_SYS_JoystickClose(SDL_Joystick *joystick) -{ - if (joystick->hwdata != NULL) { - /* free system specific hardware data */ - SDL_free(joystick->hwdata); - } -} - -/* Function to perform any system-specific joystick related cleanup */ -void SDL_SYS_JoystickQuit(void) -{ - int i; - for (i = 0; i < MAX_JOYSTICKS; i++) { - if ( SYS_JoystickName[i] != NULL ) { - SDL_free(SYS_JoystickName[i]); - } - } -} - - -/* implementation functions */ -void SetMMerror(char *function, int code) -{ - static char *error; - static char errbuf[1024]; - - errbuf[0] = 0; - switch (code) - { - case MMSYSERR_NODRIVER: - error = "Joystick driver not present"; - break; - - case MMSYSERR_INVALPARAM: - case JOYERR_PARMS: - error = "Invalid parameter(s)"; - break; - - case MMSYSERR_BADDEVICEID: - error = "Bad device ID"; - break; - - case JOYERR_UNPLUGGED: - error = "Joystick not attached"; - break; - - case JOYERR_NOCANDO: - error = "Can't capture joystick input"; - break; - - default: - SDL_snprintf(errbuf, SDL_arraysize(errbuf), - "%s: Unknown Multimedia system error: 0x%x", - function, code); - break; - } - - if ( ! errbuf[0] ) { - SDL_snprintf(errbuf, SDL_arraysize(errbuf), "%s: %s", function, error); - } - SDL_SetError("%s", errbuf); -} - -#endif /* SDL_JOYSTICK_WINMM */ |