Mercurial > sdl-ios-xcode
diff src/joystick/os2/SDL_sysjoystick.c @ 1895:c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 10 Jul 2006 21:04:37 +0000 |
parents | 92947e3a18db |
children | 99210400e8b9 |
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line diff
--- a/src/joystick/os2/SDL_sysjoystick.c Thu Jul 06 18:01:37 2006 +0000 +++ b/src/joystick/os2/SDL_sysjoystick.c Mon Jul 10 21:04:37 2006 +0000 @@ -38,15 +38,15 @@ #include "../SDL_sysjoystick.h" #include "../SDL_joystick_c.h" -HFILE hJoyPort = NULL; /* Joystick GAME$ Port Address */ -#define MAX_JOYSTICKS 2 /* Maximum of two joysticks */ -#define MAX_AXES 4 /* each joystick can have up to 4 axes */ -#define MAX_BUTTONS 8 /* 8 buttons */ -#define MAX_HATS 0 /* 0 hats - OS/2 doesn't support it */ -#define MAX_BALLS 0 /* and 0 balls - OS/2 doesn't support it */ -#define AXIS_MIN -32768 /* minimum value for axes coordinate */ -#define AXIS_MAX 32767 /* maximum value for axes coordinate */ -#define MAX_JOYNAME 128 /* Joystick name may have 128 characters */ +HFILE hJoyPort = NULL; /* Joystick GAME$ Port Address */ +#define MAX_JOYSTICKS 2 /* Maximum of two joysticks */ +#define MAX_AXES 4 /* each joystick can have up to 4 axes */ +#define MAX_BUTTONS 8 /* 8 buttons */ +#define MAX_HATS 0 /* 0 hats - OS/2 doesn't support it */ +#define MAX_BALLS 0 /* and 0 balls - OS/2 doesn't support it */ +#define AXIS_MIN -32768 /* minimum value for axes coordinate */ +#define AXIS_MAX 32767 /* maximum value for axes coordinate */ +#define MAX_JOYNAME 128 /* Joystick name may have 128 characters */ /* limit axes to 256 possible positions to filter out noise */ #define JOY_AXIS_THRESHOLD (((AXIS_MAX)-(AXIS_MIN))/256) /* Calc Button Flag for buttons A to D */ @@ -55,16 +55,16 @@ /* Joystick data... hold information about detected devices */ typedef struct SYS_JoyData_s { -Sint8 id; // Device ID -char szDeviceName[MAX_JOYNAME]; // Device Name -char axes; // Number of axes -char buttons; // Number of buttons -char hats; // Number of buttons -char balls; // Number of buttons -int axes_min[MAX_AXES]; // minimum callibration value for axes -int axes_med[MAX_AXES]; // medium callibration value for axes -int axes_max[MAX_AXES]; // maximum callibration value for axes -int buttoncalc[4]; // Used for buttons 5, 6, 7 and 8. + Sint8 id; // Device ID + char szDeviceName[MAX_JOYNAME]; // Device Name + char axes; // Number of axes + char buttons; // Number of buttons + char hats; // Number of buttons + char balls; // Number of buttons + int axes_min[MAX_AXES]; // minimum callibration value for axes + int axes_med[MAX_AXES]; // medium callibration value for axes + int axes_max[MAX_AXES]; // maximum callibration value for axes + int buttoncalc[4]; // Used for buttons 5, 6, 7 and 8. } SYS_JoyData_t, *SYS_JoyData_p; SYS_JoyData_t SYS_JoyData[MAX_JOYSTICKS]; @@ -73,30 +73,30 @@ /* Structure used to convert data from OS/2 driver format to SDL format */ struct joystick_hwdata { -Sint8 id; -struct _transaxes - { - int offset; /* Center Offset */ - float scale1; /* Center to left/up Scale */ - float scale2; /* Center to right/down Scale */ - } transaxes[MAX_AXES]; + Sint8 id; + struct _transaxes + { + int offset; /* Center Offset */ + float scale1; /* Center to left/up Scale */ + float scale2; /* Center to right/down Scale */ + } transaxes[MAX_AXES]; }; /* Structure used to get values from Joystick Environment Variable */ struct _joycfg { -char name[MAX_JOYNAME]; -unsigned int axes; -unsigned int buttons; -unsigned int hats; -unsigned int balls; + char name[MAX_JOYNAME]; + unsigned int axes; + unsigned int buttons; + unsigned int hats; + unsigned int balls; }; /* OS/2 Implementation Function Prototypes */ APIRET joyPortOpen(HFILE * hGame); void joyPortClose(HFILE * hGame); int joyGetData(char *joyenv, char *name, char stopchar, size_t maxchars); -int joyGetEnv(struct _joycfg * joydata); +int joyGetEnv(struct _joycfg *joydata); @@ -106,214 +106,228 @@ /* 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 +SDL_SYS_JoystickInit(void) { -APIRET rc; /* Generic OS/2 return code */ -GAME_PORT_STRUCT stJoyStatus; /* Joystick Status Structure */ -GAME_PARM_STRUCT stGameParms; /* Joystick Parameter Structure */ -GAME_CALIB_STRUCT stGameCalib; /* Calibration Struct */ -ULONG ulDataLen; /* Size of data */ -ULONG ulLastTick; /* Tick Counter for timing operations */ -Uint8 maxdevs; /* Maximum number of devices */ -Uint8 numdevs; /* Number of present devices */ -Uint8 maxbut; /* Maximum number of buttons... */ -Uint8 i; /* Temporary Count Vars */ -Uint8 ucNewJoystickMask; /* Mask for Joystick Detection */ -struct _joycfg joycfg; /* Joy Configuration from envvar */ + APIRET rc; /* Generic OS/2 return code */ + GAME_PORT_STRUCT stJoyStatus; /* Joystick Status Structure */ + GAME_PARM_STRUCT stGameParms; /* Joystick Parameter Structure */ + GAME_CALIB_STRUCT stGameCalib; /* Calibration Struct */ + ULONG ulDataLen; /* Size of data */ + ULONG ulLastTick; /* Tick Counter for timing operations */ + Uint8 maxdevs; /* Maximum number of devices */ + Uint8 numdevs; /* Number of present devices */ + Uint8 maxbut; /* Maximum number of buttons... */ + Uint8 i; /* Temporary Count Vars */ + Uint8 ucNewJoystickMask; /* Mask for Joystick Detection */ + struct _joycfg joycfg; /* Joy Configuration from envvar */ /* Get Max Number of Devices */ -rc = joyPortOpen(&hJoyPort); /* Open GAME$ port */ -if (rc != 0) return 0; /* Cannot open... report no joystick */ -ulDataLen = sizeof(stGameParms); -rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_PARMS, - NULL, 0, NULL, &stGameParms, ulDataLen, &ulDataLen); /* Ask device info */ -if (rc != 0) - { - joyPortClose(&hJoyPort); - SDL_SetError("Could not read joystick port."); - return -1; - } -if (stGameParms.useA != 0) maxdevs++; -if (stGameParms.useB != 0) maxdevs++; -if ( maxdevs > MAX_JOYSTICKS ) maxdevs = MAX_JOYSTICKS; + rc = joyPortOpen(&hJoyPort); /* Open GAME$ port */ + if (rc != 0) + return 0; /* Cannot open... report no joystick */ + ulDataLen = sizeof(stGameParms); + rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_PARMS, NULL, 0, NULL, &stGameParms, ulDataLen, &ulDataLen); /* Ask device info */ + if (rc != 0) { + joyPortClose(&hJoyPort); + SDL_SetError("Could not read joystick port."); + return -1; + } + if (stGameParms.useA != 0) + maxdevs++; + if (stGameParms.useB != 0) + maxdevs++; + if (maxdevs > MAX_JOYSTICKS) + maxdevs = MAX_JOYSTICKS; /* Defines min/max axes values (callibration) */ -ulDataLen = sizeof(stGameCalib); -rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_CALIB, - NULL, 0, NULL, &stGameCalib, ulDataLen, &ulDataLen); -if (rc != 0) - { - joyPortClose(&hJoyPort); - SDL_SetError("Could not read callibration data."); - return -1; - } + ulDataLen = sizeof(stGameCalib); + rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_CALIB, + NULL, 0, NULL, &stGameCalib, ulDataLen, &ulDataLen); + if (rc != 0) { + joyPortClose(&hJoyPort); + SDL_SetError("Could not read callibration data."); + return -1; + } /* Determine how many joysticks are active */ -numdevs = 0; /* Points no device */ -ucNewJoystickMask = 0x0F; /* read all 4 joystick axis */ -ulDataLen = sizeof(ucNewJoystickMask); -rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_RESET, - &ucNewJoystickMask, ulDataLen, &ulDataLen, NULL, 0, NULL); -if (rc == 0) - { - ulDataLen = sizeof(stJoyStatus); - rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET, - NULL, 0, NULL, &stJoyStatus, ulDataLen, &ulDataLen); - if (rc != 0) - { - joyPortClose(&hJoyPort); - SDL_SetError("Could not call joystick port."); - return -1; - } - ulLastTick = stJoyStatus.ulJs_Ticks; - while (stJoyStatus.ulJs_Ticks == ulLastTick) - { - rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET, - NULL, 0, NULL, &stJoyStatus, ulDataLen, &ulDataLen); - } - if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0) numdevs++; - if (((stJoyStatus.ucJs_JoyStickMask >> 2) & 0x03) > 0) numdevs++; - } + numdevs = 0; /* Points no device */ + ucNewJoystickMask = 0x0F; /* read all 4 joystick axis */ + ulDataLen = sizeof(ucNewJoystickMask); + rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_RESET, + &ucNewJoystickMask, ulDataLen, &ulDataLen, NULL, 0, + NULL); + if (rc == 0) { + ulDataLen = sizeof(stJoyStatus); + rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET, + NULL, 0, NULL, &stJoyStatus, ulDataLen, &ulDataLen); + if (rc != 0) { + joyPortClose(&hJoyPort); + SDL_SetError("Could not call joystick port."); + return -1; + } + ulLastTick = stJoyStatus.ulJs_Ticks; + while (stJoyStatus.ulJs_Ticks == ulLastTick) { + rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET, + NULL, 0, NULL, &stJoyStatus, ulDataLen, + &ulDataLen); + } + if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0) + numdevs++; + if (((stJoyStatus.ucJs_JoyStickMask >> 2) & 0x03) > 0) + numdevs++; + } -if (numdevs>maxdevs) numdevs=maxdevs; + if (numdevs > maxdevs) + numdevs = maxdevs; /* If *any* joystick was detected... Let's configure SDL for them */ -if (numdevs > 0) - { - /* Verify if it is a "user defined" joystick */ - if (joyGetEnv(&joycfg)) - { - GAME_3POS_STRUCT * axis[4]; - axis[0] = &stGameCalib.Ax; - axis[1] = &stGameCalib.Ay; - axis[2] = &stGameCalib.Bx; - axis[3] = &stGameCalib.By; - /* Say it has one device only (user defined is always one device only) */ - numdevs = 1; - /* Define Device 0 as... */ - SYS_JoyData[0].id=0; - /* Define Number of Axes... up to 4 */ - if (joycfg.axes>MAX_AXES) joycfg.axes = MAX_AXES; - SYS_JoyData[0].axes = joycfg.axes; - /* Define number of buttons... 8 if 2 axes, 6 if 3 axes and 4 if 4 axes */ - maxbut = MAX_BUTTONS; - if (joycfg.axes>2) maxbut-=((joycfg.axes-2)<<1); /* MAX_BUTTONS - 2*(axes-2) */ - if (joycfg.buttons > maxbut) joycfg.buttons = maxbut; - SYS_JoyData[0].buttons = joycfg.buttons; - /* Define number of hats */ - if (joycfg.hats > MAX_HATS) joycfg.hats = MAX_HATS; - SYS_JoyData[0].hats = joycfg.hats; - /* Define number of balls */ - if (joycfg.balls > MAX_BALLS) joycfg.balls = MAX_BALLS; - SYS_JoyData[0].balls = joycfg.balls; - /* Initialize Axes Callibration Values */ - for (i=0; i<joycfg.axes; i++) - { - SYS_JoyData[0].axes_min[i] = axis[i]->lower; - SYS_JoyData[0].axes_med[i] = axis[i]->centre; - SYS_JoyData[0].axes_max[i] = axis[i]->upper; - } - /* Initialize Buttons 5 to 8 structures */ - if (joycfg.buttons>=5) SYS_JoyData[0].buttoncalc[0]=((axis[2]->lower+axis[3]->centre)>>1); - if (joycfg.buttons>=6) SYS_JoyData[0].buttoncalc[1]=((axis[3]->lower+axis[3]->centre)>>1); - if (joycfg.buttons>=7) SYS_JoyData[0].buttoncalc[2]=((axis[2]->upper+axis[3]->centre)>>1); - if (joycfg.buttons>=8) SYS_JoyData[0].buttoncalc[3]=((axis[3]->upper+axis[3]->centre)>>1); - /* Intialize Joystick Name */ - SDL_strlcpy (SYS_JoyData[0].szDeviceName,joycfg.name, SDL_arraysize(SYS_JoyData[0].szDeviceName)); - } - /* Default Init ... autoconfig */ - else - { - /* if two devices were detected... configure as Joy1 4 axis and Joy2 2 axis */ - if (numdevs==2) - { - /* Define Device 0 as 4 axes, 4 buttons */ - SYS_JoyData[0].id=0; - SYS_JoyData[0].axes = 4; - SYS_JoyData[0].buttons = 4; - SYS_JoyData[0].hats = 0; - SYS_JoyData[0].balls = 0; - SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower; - SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre; - SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper; - SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower; - SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre; - SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper; - SYS_JoyData[0].axes_min[2] = stGameCalib.Bx.lower; - SYS_JoyData[0].axes_med[2] = stGameCalib.Bx.centre; - SYS_JoyData[0].axes_max[2] = stGameCalib.Bx.upper; - SYS_JoyData[0].axes_min[3] = stGameCalib.By.lower; - SYS_JoyData[0].axes_med[3] = stGameCalib.By.centre; - SYS_JoyData[0].axes_max[3] = stGameCalib.By.upper; - /* Define Device 1 as 2 axes, 2 buttons */ - SYS_JoyData[1].id=1; - SYS_JoyData[1].axes = 2; - SYS_JoyData[1].buttons = 2; - SYS_JoyData[1].hats = 0; - SYS_JoyData[1].balls = 0; - SYS_JoyData[1].axes_min[0] = stGameCalib.Bx.lower; - SYS_JoyData[1].axes_med[0] = stGameCalib.Bx.centre; - SYS_JoyData[1].axes_max[0] = stGameCalib.Bx.upper; - SYS_JoyData[1].axes_min[1] = stGameCalib.By.lower; - SYS_JoyData[1].axes_med[1] = stGameCalib.By.centre; - SYS_JoyData[1].axes_max[1] = stGameCalib.By.upper; - } - /* One joystick only? */ - else - { - /* If it is joystick A... */ - if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0) - { - /* Define Device 0 as 2 axes, 4 buttons */ - SYS_JoyData[0].id=0; - SYS_JoyData[0].axes = 2; - SYS_JoyData[0].buttons = 4; - SYS_JoyData[0].hats = 0; - SYS_JoyData[0].balls = 0; - SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower; - SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre; - SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper; - SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower; - SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre; - SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper; - } - /* If not, it is joystick B */ - else - { - /* Define Device 1 as 2 axes, 2 buttons */ - SYS_JoyData[0].id=1; - SYS_JoyData[0].axes = 2; - SYS_JoyData[0].buttons = 2; - SYS_JoyData[0].hats = 0; - SYS_JoyData[0].balls = 0; - SYS_JoyData[0].axes_min[0] = stGameCalib.Bx.lower; - SYS_JoyData[0].axes_med[0] = stGameCalib.Bx.centre; - SYS_JoyData[0].axes_max[0] = stGameCalib.Bx.upper; - SYS_JoyData[0].axes_min[1] = stGameCalib.By.lower; - SYS_JoyData[0].axes_med[1] = stGameCalib.By.centre; - SYS_JoyData[0].axes_max[1] = stGameCalib.By.upper; - } - } - /* Hack to define Joystick Port Names */ - if ( numdevs > maxdevs ) numdevs = maxdevs; - for (i=0; i<numdevs; i++) - SDL_snprintf (SYS_JoyData[i].szDeviceName, SDL_arraysize(SYS_JoyData[i].szDeviceName), "Default Joystick %c", 'A'+SYS_JoyData[i].id); + if (numdevs > 0) { + /* Verify if it is a "user defined" joystick */ + if (joyGetEnv(&joycfg)) { + GAME_3POS_STRUCT *axis[4]; + axis[0] = &stGameCalib.Ax; + axis[1] = &stGameCalib.Ay; + axis[2] = &stGameCalib.Bx; + axis[3] = &stGameCalib.By; + /* Say it has one device only (user defined is always one device only) */ + numdevs = 1; + /* Define Device 0 as... */ + SYS_JoyData[0].id = 0; + /* Define Number of Axes... up to 4 */ + if (joycfg.axes > MAX_AXES) + joycfg.axes = MAX_AXES; + SYS_JoyData[0].axes = joycfg.axes; + /* Define number of buttons... 8 if 2 axes, 6 if 3 axes and 4 if 4 axes */ + maxbut = MAX_BUTTONS; + if (joycfg.axes > 2) + maxbut -= ((joycfg.axes - 2) << 1); /* MAX_BUTTONS - 2*(axes-2) */ + if (joycfg.buttons > maxbut) + joycfg.buttons = maxbut; + SYS_JoyData[0].buttons = joycfg.buttons; + /* Define number of hats */ + if (joycfg.hats > MAX_HATS) + joycfg.hats = MAX_HATS; + SYS_JoyData[0].hats = joycfg.hats; + /* Define number of balls */ + if (joycfg.balls > MAX_BALLS) + joycfg.balls = MAX_BALLS; + SYS_JoyData[0].balls = joycfg.balls; + /* Initialize Axes Callibration Values */ + for (i = 0; i < joycfg.axes; i++) { + SYS_JoyData[0].axes_min[i] = axis[i]->lower; + SYS_JoyData[0].axes_med[i] = axis[i]->centre; + SYS_JoyData[0].axes_max[i] = axis[i]->upper; + } + /* Initialize Buttons 5 to 8 structures */ + if (joycfg.buttons >= 5) + SYS_JoyData[0].buttoncalc[0] = + ((axis[2]->lower + axis[3]->centre) >> 1); + if (joycfg.buttons >= 6) + SYS_JoyData[0].buttoncalc[1] = + ((axis[3]->lower + axis[3]->centre) >> 1); + if (joycfg.buttons >= 7) + SYS_JoyData[0].buttoncalc[2] = + ((axis[2]->upper + axis[3]->centre) >> 1); + if (joycfg.buttons >= 8) + SYS_JoyData[0].buttoncalc[3] = + ((axis[3]->upper + axis[3]->centre) >> 1); + /* Intialize Joystick Name */ + SDL_strlcpy(SYS_JoyData[0].szDeviceName, joycfg.name, + SDL_arraysize(SYS_JoyData[0].szDeviceName)); + } + /* Default Init ... autoconfig */ + else { + /* if two devices were detected... configure as Joy1 4 axis and Joy2 2 axis */ + if (numdevs == 2) { + /* Define Device 0 as 4 axes, 4 buttons */ + SYS_JoyData[0].id = 0; + SYS_JoyData[0].axes = 4; + SYS_JoyData[0].buttons = 4; + SYS_JoyData[0].hats = 0; + SYS_JoyData[0].balls = 0; + SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower; + SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre; + SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper; + SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower; + SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre; + SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper; + SYS_JoyData[0].axes_min[2] = stGameCalib.Bx.lower; + SYS_JoyData[0].axes_med[2] = stGameCalib.Bx.centre; + SYS_JoyData[0].axes_max[2] = stGameCalib.Bx.upper; + SYS_JoyData[0].axes_min[3] = stGameCalib.By.lower; + SYS_JoyData[0].axes_med[3] = stGameCalib.By.centre; + SYS_JoyData[0].axes_max[3] = stGameCalib.By.upper; + /* Define Device 1 as 2 axes, 2 buttons */ + SYS_JoyData[1].id = 1; + SYS_JoyData[1].axes = 2; + SYS_JoyData[1].buttons = 2; + SYS_JoyData[1].hats = 0; + SYS_JoyData[1].balls = 0; + SYS_JoyData[1].axes_min[0] = stGameCalib.Bx.lower; + SYS_JoyData[1].axes_med[0] = stGameCalib.Bx.centre; + SYS_JoyData[1].axes_max[0] = stGameCalib.Bx.upper; + SYS_JoyData[1].axes_min[1] = stGameCalib.By.lower; + SYS_JoyData[1].axes_med[1] = stGameCalib.By.centre; + SYS_JoyData[1].axes_max[1] = stGameCalib.By.upper; + } + /* One joystick only? */ + else { + /* If it is joystick A... */ + if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0) { + /* Define Device 0 as 2 axes, 4 buttons */ + SYS_JoyData[0].id = 0; + SYS_JoyData[0].axes = 2; + SYS_JoyData[0].buttons = 4; + SYS_JoyData[0].hats = 0; + SYS_JoyData[0].balls = 0; + SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower; + SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre; + SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper; + SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower; + SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre; + SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper; + } + /* If not, it is joystick B */ + else { + /* Define Device 1 as 2 axes, 2 buttons */ + SYS_JoyData[0].id = 1; + SYS_JoyData[0].axes = 2; + SYS_JoyData[0].buttons = 2; + SYS_JoyData[0].hats = 0; + SYS_JoyData[0].balls = 0; + SYS_JoyData[0].axes_min[0] = stGameCalib.Bx.lower; + SYS_JoyData[0].axes_med[0] = stGameCalib.Bx.centre; + SYS_JoyData[0].axes_max[0] = stGameCalib.Bx.upper; + SYS_JoyData[0].axes_min[1] = stGameCalib.By.lower; + SYS_JoyData[0].axes_med[1] = stGameCalib.By.centre; + SYS_JoyData[0].axes_max[1] = stGameCalib.By.upper; + } + } + /* Hack to define Joystick Port Names */ + if (numdevs > maxdevs) + numdevs = maxdevs; + for (i = 0; i < numdevs; i++) + SDL_snprintf(SYS_JoyData[i].szDeviceName, + SDL_arraysize(SYS_JoyData[i].szDeviceName), + "Default Joystick %c", 'A' + SYS_JoyData[i].id); - } - } + } + } /* Return the number of devices found */ -return(numdevs); + return (numdevs); } /***********************************************************/ /* Function to get the device-dependent name of a joystick */ /***********************************************************/ -const char *SDL_SYS_JoystickName(int index) +const char * +SDL_SYS_JoystickName(int index) { /* No need to verify if device exists, already done in upper layer */ -return(SYS_JoyData[index].szDeviceName); + return (SYS_JoyData[index].szDeviceName); } @@ -324,51 +338,51 @@ /* 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 +SDL_SYS_JoystickOpen(SDL_Joystick * joystick) { -int index; /* Index shortcut for index in joystick structure */ -int i; /* Generic Counter */ + int index; /* Index shortcut for index in joystick structure */ + int i; /* Generic Counter */ /* 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); - } + joystick->hwdata = + (struct joystick_hwdata *) SDL_malloc(sizeof(*joystick->hwdata)); + if (joystick->hwdata == NULL) { + SDL_OutOfMemory(); + return (-1); + } /* Reset Hardware Data */ -SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); + SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata)); /* ShortCut Pointer */ -index = joystick->index; + index = joystick->index; /* Define offsets and scales for all axes */ -joystick->hwdata->id = SYS_JoyData[index].id; -for ( i = 0; i < MAX_AXES; ++i ) - { - if ( (i<2) || i < SYS_JoyData[index].axes ) - { - joystick->hwdata->transaxes[i].offset = ((AXIS_MAX + AXIS_MIN)>>1) - SYS_JoyData[index].axes_med[i]; - //joystick->hwdata->transaxes[i].scale = (float)((AXIS_MAX - AXIS_MIN)/(SYS_JoyData[index].axes_max[i]-SYS_JoyData[index].axes_min[i])); - joystick->hwdata->transaxes[i].scale1 = (float)abs((AXIS_MIN/SYS_JoyData[index].axes_min[i])); - joystick->hwdata->transaxes[i].scale2 = (float)abs((AXIS_MAX/SYS_JoyData[index].axes_max[i])); - } - else - { - joystick->hwdata->transaxes[i].offset = 0; - //joystick->hwdata->transaxes[i].scale = 1.0; /* Just in case */ - joystick->hwdata->transaxes[i].scale1 = 1.0; /* Just in case */ - joystick->hwdata->transaxes[i].scale2 = 1.0; /* Just in case */ - } - } + joystick->hwdata->id = SYS_JoyData[index].id; + for (i = 0; i < MAX_AXES; ++i) { + if ((i < 2) || i < SYS_JoyData[index].axes) { + joystick->hwdata->transaxes[i].offset = + ((AXIS_MAX + AXIS_MIN) >> 1) - SYS_JoyData[index].axes_med[i]; + //joystick->hwdata->transaxes[i].scale = (float)((AXIS_MAX - AXIS_MIN)/(SYS_JoyData[index].axes_max[i]-SYS_JoyData[index].axes_min[i])); + joystick->hwdata->transaxes[i].scale1 = + (float) abs((AXIS_MIN / SYS_JoyData[index].axes_min[i])); + joystick->hwdata->transaxes[i].scale2 = + (float) abs((AXIS_MAX / SYS_JoyData[index].axes_max[i])); + } else { + joystick->hwdata->transaxes[i].offset = 0; + //joystick->hwdata->transaxes[i].scale = 1.0; /* Just in case */ + joystick->hwdata->transaxes[i].scale1 = 1.0; /* Just in case */ + joystick->hwdata->transaxes[i].scale2 = 1.0; /* Just in case */ + } + } /* fill nbuttons, naxes, and nhats fields */ -joystick->nbuttons = SYS_JoyData[index].buttons; -joystick->naxes = SYS_JoyData[index].axes; + joystick->nbuttons = SYS_JoyData[index].buttons; + joystick->naxes = SYS_JoyData[index].axes; /* joystick->nhats = SYS_JoyData[index].hats; */ -joystick->nhats = 0; /* No support for hats at this time */ + joystick->nhats = 0; /* No support for hats at this time */ /* joystick->nballs = SYS_JoyData[index].balls; */ -joystick->nballs = 0; /* No support for balls at this time */ -return 0; + joystick->nballs = 0; /* No support for balls at this time */ + return 0; } @@ -379,131 +393,132 @@ /* but instead should call SDL_PrivateJoystick*() to deliver events */ /* and update joystick device state. */ /***************************************************************************/ -void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) +void +SDL_SYS_JoystickUpdate(SDL_Joystick * joystick) { -APIRET rc; /* Generic OS/2 return code */ -int index; /* index shortcurt to joystick index */ -int i; /* Generic counter */ -int normbut; /* Number of buttons reported by joystick */ -int corr; /* Correction for button names */ -Sint16 value, change; /* Values used to update axis values */ -struct _transaxes *transaxes; /* Shortcut for Correction structure */ -Uint32 pos[MAX_AXES]; /* Vector to inform the Axis status */ -ULONG ulDataLen; /* Size of data */ -GAME_STATUS_STRUCT stGameStatus; /* Joystick Status Structure */ + APIRET rc; /* Generic OS/2 return code */ + int index; /* index shortcurt to joystick index */ + int i; /* Generic counter */ + int normbut; /* Number of buttons reported by joystick */ + int corr; /* Correction for button names */ + Sint16 value, change; /* Values used to update axis values */ + struct _transaxes *transaxes; /* Shortcut for Correction structure */ + Uint32 pos[MAX_AXES]; /* Vector to inform the Axis status */ + ULONG ulDataLen; /* Size of data */ + GAME_STATUS_STRUCT stGameStatus; /* Joystick Status Structure */ -ulDataLen = sizeof(stGameStatus); -rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_STATUS, - NULL, 0, NULL, &stGameStatus, ulDataLen, &ulDataLen); -if (rc != 0) - { - SDL_SetError("Could not read joystick status."); - return; /* Could not read data */ - } + ulDataLen = sizeof(stGameStatus); + rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_STATUS, + NULL, 0, NULL, &stGameStatus, ulDataLen, &ulDataLen); + if (rc != 0) { + SDL_SetError("Could not read joystick status."); + return; /* Could not read data */ + } /* Shortcut pointer */ -index = joystick->index; + index = joystick->index; /* joystick motion events */ -if (SYS_JoyData[index].id == 0) - { - pos[0] = stGameStatus.curdata.A.x; - pos[1] = stGameStatus.curdata.A.y; - if (SYS_JoyData[index].axes >= 3) pos[2] = stGameStatus.curdata.B.x; - else pos[2]=0; - if (SYS_JoyData[index].axes >= 4) pos[3] = stGameStatus.curdata.B.y; - else pos[3]=0; - pos[4]=0; /* OS/2 basic drivers do not support more than 4 axes joysticks */ - pos[5]=0; - } -else if (SYS_JoyData[index].id == 1) - { - pos[0] = stGameStatus.curdata.B.x; - pos[1] = stGameStatus.curdata.B.y; - pos[2]=0; - pos[3]=0; - pos[4]=0; - pos[5]=0; - } + if (SYS_JoyData[index].id == 0) { + pos[0] = stGameStatus.curdata.A.x; + pos[1] = stGameStatus.curdata.A.y; + if (SYS_JoyData[index].axes >= 3) + pos[2] = stGameStatus.curdata.B.x; + else + pos[2] = 0; + if (SYS_JoyData[index].axes >= 4) + pos[3] = stGameStatus.curdata.B.y; + else + pos[3] = 0; + pos[4] = 0; /* OS/2 basic drivers do not support more than 4 axes joysticks */ + pos[5] = 0; + } else if (SYS_JoyData[index].id == 1) { + pos[0] = stGameStatus.curdata.B.x; + pos[1] = stGameStatus.curdata.B.y; + pos[2] = 0; + pos[3] = 0; + pos[4] = 0; + pos[5] = 0; + } /* Corrects the movements using the callibration */ -transaxes = joystick->hwdata->transaxes; -for (i = 0; i < joystick->naxes; i++) - { - value = pos[i] + transaxes[i].offset; - if (value<0) - { - value*=transaxes[i].scale1; - if (value>0) value = AXIS_MIN; - } - else - { - value*=transaxes[i].scale2; - if (value<0) value = AXIS_MAX; - } - change = (value - joystick->axes[i]); - if ( (change < -JOY_AXIS_THRESHOLD) || (change > JOY_AXIS_THRESHOLD) ) - { - SDL_PrivateJoystickAxis(joystick, (Uint8)i, (Sint16)value); - } - } + transaxes = joystick->hwdata->transaxes; + for (i = 0; i < joystick->naxes; i++) { + value = pos[i] + transaxes[i].offset; + if (value < 0) { + value *= transaxes[i].scale1; + if (value > 0) + value = AXIS_MIN; + } else { + value *= transaxes[i].scale2; + if (value < 0) + value = AXIS_MAX; + } + change = (value - joystick->axes[i]); + if ((change < -JOY_AXIS_THRESHOLD) || (change > JOY_AXIS_THRESHOLD)) { + SDL_PrivateJoystickAxis(joystick, (Uint8) i, (Sint16) value); + } + } /* joystick button A to D events */ -if (SYS_JoyData[index].id == 1) corr = 2; -else corr = 0; -normbut=4; /* Number of normal buttons */ -if (joystick->nbuttons<normbut) normbut = joystick->nbuttons; -for ( i = corr; (i-corr) < normbut; ++i ) - { - /* - Button A: 1110 0000 - Button B: 1101 0000 - Button C: 1011 0000 - Button D: 0111 0000 - */ - if ( (~stGameStatus.curdata.butMask)>>4 & JOY_BUTTON_FLAG(i) ) - { - if ( ! joystick->buttons[i-corr] ) - { - SDL_PrivateJoystickButton(joystick, (Uint8)(i-corr), SDL_PRESSED); - } - } - else - { - if ( joystick->buttons[i-corr] ) - { - SDL_PrivateJoystickButton(joystick, (Uint8)(i-corr), SDL_RELEASED); - } - } - } + if (SYS_JoyData[index].id == 1) + corr = 2; + else + corr = 0; + normbut = 4; /* Number of normal buttons */ + if (joystick->nbuttons < normbut) + normbut = joystick->nbuttons; + for (i = corr; (i - corr) < normbut; ++i) { + /* + Button A: 1110 0000 + Button B: 1101 0000 + Button C: 1011 0000 + Button D: 0111 0000 + */ + if ((~stGameStatus.curdata.butMask) >> 4 & JOY_BUTTON_FLAG(i)) { + if (!joystick->buttons[i - corr]) { + SDL_PrivateJoystickButton(joystick, (Uint8) (i - corr), + SDL_PRESSED); + } + } else { + if (joystick->buttons[i - corr]) { + SDL_PrivateJoystickButton(joystick, (Uint8) (i - corr), + SDL_RELEASED); + } + } + } /* Joystick button E to H buttons */ - /* - Button E: Axis 2 X Left - Button F: Axis 2 Y Up - Button G: Axis 2 X Right - Button H: Axis 2 Y Down - */ -if (joystick->nbuttons>=5) - { - if (stGameStatus.curdata.B.x < SYS_JoyData[index].buttoncalc[0]) SDL_PrivateJoystickButton(joystick, (Uint8)4, SDL_PRESSED); - else SDL_PrivateJoystickButton(joystick, (Uint8)4, SDL_RELEASED); - } -if (joystick->nbuttons>=6) - { - if (stGameStatus.curdata.B.y < SYS_JoyData[index].buttoncalc[1]) SDL_PrivateJoystickButton(joystick, (Uint8)5, SDL_PRESSED); - else SDL_PrivateJoystickButton(joystick, (Uint8)5, SDL_RELEASED); - } -if (joystick->nbuttons>=7) - { - if (stGameStatus.curdata.B.x > SYS_JoyData[index].buttoncalc[2]) SDL_PrivateJoystickButton(joystick, (Uint8)6, SDL_PRESSED); - else SDL_PrivateJoystickButton(joystick, (Uint8)6, SDL_RELEASED); - } -if (joystick->nbuttons>=8) - { - if (stGameStatus.curdata.B.y > SYS_JoyData[index].buttoncalc[3]) SDL_PrivateJoystickButton(joystick, (Uint8)7, SDL_PRESSED); - else SDL_PrivateJoystickButton(joystick, (Uint8)7, SDL_RELEASED); - } + /* + Button E: Axis 2 X Left + Button F: Axis 2 Y Up + Button G: Axis 2 X Right + Button H: Axis 2 Y Down + */ + if (joystick->nbuttons >= 5) { + if (stGameStatus.curdata.B.x < SYS_JoyData[index].buttoncalc[0]) + SDL_PrivateJoystickButton(joystick, (Uint8) 4, SDL_PRESSED); + else + SDL_PrivateJoystickButton(joystick, (Uint8) 4, SDL_RELEASED); + } + if (joystick->nbuttons >= 6) { + if (stGameStatus.curdata.B.y < SYS_JoyData[index].buttoncalc[1]) + SDL_PrivateJoystickButton(joystick, (Uint8) 5, SDL_PRESSED); + else + SDL_PrivateJoystickButton(joystick, (Uint8) 5, SDL_RELEASED); + } + if (joystick->nbuttons >= 7) { + if (stGameStatus.curdata.B.x > SYS_JoyData[index].buttoncalc[2]) + SDL_PrivateJoystickButton(joystick, (Uint8) 6, SDL_PRESSED); + else + SDL_PrivateJoystickButton(joystick, (Uint8) 6, SDL_RELEASED); + } + if (joystick->nbuttons >= 8) { + if (stGameStatus.curdata.B.y > SYS_JoyData[index].buttoncalc[3]) + SDL_PrivateJoystickButton(joystick, (Uint8) 7, SDL_PRESSED); + else + SDL_PrivateJoystickButton(joystick, (Uint8) 7, SDL_RELEASED); + } /* joystick hat events */ /* Not Supported under OS/2 */ @@ -516,13 +531,13 @@ /******************************************/ /* Function to close a joystick after use */ /******************************************/ -void SDL_SYS_JoystickClose(SDL_Joystick *joystick) +void +SDL_SYS_JoystickClose(SDL_Joystick * joystick) { -if (joystick->hwdata != NULL) - { - /* free system specific hardware data */ - SDL_free(joystick->hwdata); - } + if (joystick->hwdata != NULL) { + /* free system specific hardware data */ + SDL_free(joystick->hwdata); + } } @@ -530,9 +545,10 @@ /********************************************************************/ /* Function to perform any system-specific joystick related cleanup */ /********************************************************************/ -void SDL_SYS_JoystickQuit(void) +void +SDL_SYS_JoystickQuit(void) { -joyPortClose(&hJoyPort); + joyPortClose(&hJoyPort); } @@ -547,42 +563,42 @@ /*****************************************/ /* Open Joystick Port, if not opened yet */ /*****************************************/ -APIRET joyPortOpen(HFILE * hGame) +APIRET +joyPortOpen(HFILE * hGame) { -APIRET rc; /* Generic Return Code */ -ULONG ulAction; /* ? */ -ULONG ulVersion; /* Version of joystick driver */ -ULONG ulDataLen; /* Size of version data */ + APIRET rc; /* Generic Return Code */ + ULONG ulAction; /* ? */ + ULONG ulVersion; /* Version of joystick driver */ + ULONG ulDataLen; /* Size of version data */ /* Verifies if joyport is not already open... */ -if (*hGame != NULL) return 0; + if (*hGame != NULL) + return 0; /* Open GAME$ for read */ -rc = DosOpen((PSZ)GAMEPDDNAME, hGame, &ulAction, 0, FILE_READONLY, - FILE_OPEN, OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE, NULL); -if (rc != 0) - { - SDL_SetError("Could not open Joystick Port."); - return -1; - } - + rc = DosOpen((PSZ) GAMEPDDNAME, hGame, &ulAction, 0, FILE_READONLY, + FILE_OPEN, OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE, NULL); + if (rc != 0) { + SDL_SetError("Could not open Joystick Port."); + return -1; + } + /* Get Joystick Driver Version... must be 2.0 or higher */ -ulVersion = 0; -ulDataLen = sizeof(ulVersion); -rc = DosDevIOCtl( *hGame, IOCTL_CAT_USER, GAME_GET_VERSION, - NULL, 0, NULL, &ulVersion, ulDataLen, &ulDataLen); -if (rc != 0) - { - joyPortClose(hGame); - SDL_SetError("Could not get Joystick Driver version."); - return -1; - } -if (ulVersion < GAME_VERSION) - { - joyPortClose(hGame); - SDL_SetError("Driver too old. At least IBM driver version 2.0 required."); - return -1; - } -return 0; + ulVersion = 0; + ulDataLen = sizeof(ulVersion); + rc = DosDevIOCtl(*hGame, IOCTL_CAT_USER, GAME_GET_VERSION, + NULL, 0, NULL, &ulVersion, ulDataLen, &ulDataLen); + if (rc != 0) { + joyPortClose(hGame); + SDL_SetError("Could not get Joystick Driver version."); + return -1; + } + if (ulVersion < GAME_VERSION) { + joyPortClose(hGame); + SDL_SetError + ("Driver too old. At least IBM driver version 2.0 required."); + return -1; + } + return 0; } @@ -590,10 +606,12 @@ /****************************/ /* Close JoyPort, if opened */ /****************************/ -void joyPortClose(HFILE * hGame) +void +joyPortClose(HFILE * hGame) { -if (*hGame != NULL) DosClose(*hGame); -*hGame = NULL; + if (*hGame != NULL) + DosClose(*hGame); + *hGame = NULL; } @@ -601,37 +619,50 @@ /***************************/ /* Get SDL Joystick EnvVar */ /***************************/ -int joyGetEnv(struct _joycfg * joydata) +int +joyGetEnv(struct _joycfg *joydata) { -char *joyenv; /* Pointer to tested character */ -char tempnumber[5]; /* Temporary place to put numeric texts */ + char *joyenv; /* Pointer to tested character */ + char tempnumber[5]; /* Temporary place to put numeric texts */ -joyenv = SDL_getenv("SDL_OS2_JOYSTICK"); -if (joyenv == NULL) return 0; + joyenv = SDL_getenv("SDL_OS2_JOYSTICK"); + if (joyenv == NULL) + return 0; /* Joystick Environment is defined! */ -while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */ + while (*joyenv == ' ' && *joyenv != 0) + joyenv++; /* jump spaces... */ /* If the string name starts with '... get if fully */ -if (*joyenv=='\'') joyenv+=joyGetData(++joyenv,joydata->name,'\'',sizeof(joydata->name)); + if (*joyenv == '\'') + joyenv += + joyGetData(++joyenv, joydata->name, '\'', sizeof(joydata->name)); /* If not, get it until the next space */ -else if (*joyenv=='\"') joyenv+=joyGetData(++joyenv,joydata->name,'\"',sizeof(joydata->name)); -else joyenv+=joyGetData(joyenv,joydata->name,' ',sizeof(joydata->name)); + else if (*joyenv == '\"') + joyenv += + joyGetData(++joyenv, joydata->name, '\"', sizeof(joydata->name)); + else + joyenv += + joyGetData(joyenv, joydata->name, ' ', sizeof(joydata->name)); /* Now get the number of axes */ -while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */ -joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber)); -joydata->axes = atoi(tempnumber); + while (*joyenv == ' ' && *joyenv != 0) + joyenv++; /* jump spaces... */ + joyenv += joyGetData(joyenv, tempnumber, ' ', sizeof(tempnumber)); + joydata->axes = atoi(tempnumber); /* Now get the number of buttons */ -while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */ -joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber)); -joydata->buttons = atoi(tempnumber); + while (*joyenv == ' ' && *joyenv != 0) + joyenv++; /* jump spaces... */ + joyenv += joyGetData(joyenv, tempnumber, ' ', sizeof(tempnumber)); + joydata->buttons = atoi(tempnumber); /* Now get the number of hats */ -while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */ -joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber)); -joydata->hats = atoi(tempnumber); + while (*joyenv == ' ' && *joyenv != 0) + joyenv++; /* jump spaces... */ + joyenv += joyGetData(joyenv, tempnumber, ' ', sizeof(tempnumber)); + joydata->hats = atoi(tempnumber); /* Now get the number of balls */ -while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */ -joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber)); -joydata->balls = atoi(tempnumber); -return 1; + while (*joyenv == ' ' && *joyenv != 0) + joyenv++; /* jump spaces... */ + joyenv += joyGetData(joyenv, tempnumber, ' ', sizeof(tempnumber)); + joydata->balls = atoi(tempnumber); + return 1; } @@ -640,29 +671,28 @@ /* Get a text from in the string starting in joyenv until it finds */ /* the stopchar or maxchars is reached. The result is placed in name. */ /************************************************************************/ -int joyGetData(char *joyenv, char *name, char stopchar, size_t maxchars) +int +joyGetData(char *joyenv, char *name, char stopchar, size_t maxchars) { -char *nameptr; /* Pointer to the selected character */ -int chcnt=0; /* Count how many characters where copied */ + char *nameptr; /* Pointer to the selected character */ + int chcnt = 0; /* Count how many characters where copied */ -nameptr=name; -while (*joyenv!=stopchar && *joyenv!=0) - { - if (nameptr<(name+(maxchars-1))) - { - *nameptr = *joyenv; /* Only copy if smaller than maximum */ - nameptr++; - } - chcnt++; - joyenv++; - } -if (*joyenv==stopchar) - { - joyenv++; /* Jump stopchar */ - chcnt++; - } -*nameptr = 0; /* Mark last byte */ -return chcnt; + nameptr = name; + while (*joyenv != stopchar && *joyenv != 0) { + if (nameptr < (name + (maxchars - 1))) { + *nameptr = *joyenv; /* Only copy if smaller than maximum */ + nameptr++; + } + chcnt++; + joyenv++; + } + if (*joyenv == stopchar) { + joyenv++; /* Jump stopchar */ + chcnt++; + } + *nameptr = 0; /* Mark last byte */ + return chcnt; } #endif /* SDL_JOYSTICK_OS2 */ +/* vi: set ts=4 sw=4 expandtab: */