diff options
Diffstat (limited to '3rdparty/SDL2/src/joystick/windows/SDL_mmjoystick.c')
-rw-r--r-- | 3rdparty/SDL2/src/joystick/windows/SDL_mmjoystick.c | 467 |
1 files changed, 0 insertions, 467 deletions
diff --git a/3rdparty/SDL2/src/joystick/windows/SDL_mmjoystick.c b/3rdparty/SDL2/src/joystick/windows/SDL_mmjoystick.c deleted file mode 100644 index 37461818112..00000000000 --- a/3rdparty/SDL2/src/joystick/windows/SDL_mmjoystick.c +++ /dev/null @@ -1,467 +0,0 @@ -/* - Simple DirectMedia Layer - Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org> - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. -*/ -#include "../../SDL_internal.h" - -#ifdef SDL_JOYSTICK_WINMM - -/* Win32 MultiMedia Joystick driver, contributed by Andrei de A. Formiga */ - -#include "../../core/windows/SDL_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" - -#ifdef REGSTR_VAL_JOYOEMNAME -#undef REGSTR_VAL_JOYOEMNAME -#endif -#define REGSTR_VAL_JOYOEMNAME "OEMName" - -#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 JOYCAPSA 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 Windows 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); -} - -static int SDL_SYS_numjoysticks = 0; - -/* Function to scan the system for 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; - JOYINFOEX joyinfo; - JOYCAPSA 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 */ - SDL_SYS_numjoysticks = 0; - maxdevs = joyGetNumDevs(); - for (i = JOYSTICKID1; i < maxdevs && SDL_SYS_numjoysticks < MAX_JOYSTICKS; ++i) { - - joyinfo.dwSize = sizeof(joyinfo); - joyinfo.dwFlags = JOY_RETURNALL; - result = joyGetPosEx(i, &joyinfo); - if (result == JOYERR_NOERROR) { - result = joyGetDevCapsA(i, &joycaps, sizeof(joycaps)); - if (result == JOYERR_NOERROR) { - SYS_JoystickID[SDL_SYS_numjoysticks] = i; - SYS_Joystick[SDL_SYS_numjoysticks] = joycaps; - SYS_JoystickName[SDL_SYS_numjoysticks] = - GetJoystickName(i, joycaps.szRegKey); - SDL_SYS_numjoysticks++; - } - } - } - return (SDL_SYS_numjoysticks); -} - -int SDL_SYS_NumJoysticks() -{ - return SDL_SYS_numjoysticks; -} - -void SDL_SYS_JoystickDetect() -{ -} - -/* Function to get the device-dependent name of a joystick */ -const char * -SDL_SYS_JoystickNameForDeviceIndex(int device_index) -{ - if (SYS_JoystickName[device_index] != NULL) { - return (SYS_JoystickName[device_index]); - } else { - return (SYS_Joystick[device_index].szPname); - } -} - -/* Function to perform the mapping from device index to the instance id for this index */ -SDL_JoystickID SDL_SYS_GetInstanceIdOfDeviceIndex(int device_index) -{ - return device_index; -} - -/* Function to open a joystick for use. - The joystick to open is specified by the device index. - 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 device_index) -{ - 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 = device_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->instance_id = device_index; - joystick->hwdata = - (struct joystick_hwdata *) SDL_malloc(sizeof(*joystick->hwdata)); - if (joystick->hwdata == NULL) { - return SDL_OutOfMemory(); - } - 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); -} - -/* Function to determine if this joystick is attached to the system right now */ -SDL_bool SDL_SYS_JoystickAttached(SDL_Joystick *joystick) -{ - return SDL_TRUE; -} - -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) -{ - 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++) { - SDL_free(SYS_JoystickName[i]); - SYS_JoystickName[i] = NULL; - } -} - -SDL_JoystickGUID SDL_SYS_JoystickGetDeviceGUID( int device_index ) -{ - SDL_JoystickGUID guid; - /* the GUID is just the first 16 chars of the name for now */ - const char *name = SDL_SYS_JoystickNameForDeviceIndex( device_index ); - SDL_zero( guid ); - SDL_memcpy( &guid, name, SDL_min( sizeof(guid), SDL_strlen( name ) ) ); - return guid; -} - -SDL_JoystickGUID SDL_SYS_JoystickGetGUID(SDL_Joystick * joystick) -{ - SDL_JoystickGUID guid; - /* the GUID is just the first 16 chars of the name for now */ - const char *name = joystick->name; - SDL_zero( guid ); - SDL_memcpy( &guid, name, SDL_min( sizeof(guid), SDL_strlen( name ) ) ); - return guid; -} - - -/* 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 */ - -/* vi: set ts=4 sw=4 expandtab: */ |