Commit 45fb778fe53323180942e982e0a4480a3f27c138
2023-08-02T20:40:24
adjusted coding style in SDL_os2_joystick.c to match rest of SDL better (cherry picked from commit 57f3c41b9727d8cfb701401bc539be45285a0399)
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diff --git a/src/joystick/os2/SDL_os2joystick.c b/src/joystick/os2/SDL_os2joystick.c
index 7f72b62..b7e0376 100644
--- a/src/joystick/os2/SDL_os2joystick.c
+++ b/src/joystick/os2/SDL_os2joystick.c
@@ -93,29 +93,29 @@ typedef struct {
#include "../SDL_sysjoystick.h"
#include "../SDL_joystick_c.h"
-static HFILE hJoyPort = NULLHANDLE; /* 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 MAX_JOYNAME 128 /* Joystick name may have 128 characters */
+static HFILE hJoyPort = NULLHANDLE; /* 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 MAX_JOYNAME 128 /* Joystick name may have 128 characters */
/* Calc Button Flag for buttons A to D */
#define JOY_BUTTON_FLAG(n) (1<<n)
/* 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;
static SYS_JoyData_t SYS_JoyData[MAX_JOYSTICKS];
@@ -123,25 +123,25 @@ static SYS_JoyData_t SYS_JoyData[MAX_JOYSTICKS];
/* Structure used to convert data from OS/2 driver format to SDL format */
struct _transaxes
{
- int offset; /* Center Offset */
- float scale1; /* Center to left/up Scale */
- float scale2; /* Center to right/down Scale */
+ int offset; /* Center Offset */
+ float scale1; /* Center to left/up Scale */
+ float scale2; /* Center to right/down Scale */
};
struct joystick_hwdata
{
- Sint8 id;
- struct _transaxes transaxes[MAX_AXES];
+ Sint8 id;
+ struct _transaxes 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 */
@@ -154,223 +154,243 @@ static int joyGetEnv(struct _joycfg * joydata);
static int 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. */
+/* 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. */
/************************************************************************/
static int OS2_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 */
-
- /* Open GAME$ port */
- if (joyPortOpen(&hJoyPort) < 0) return 0; /* Cannot open... report no joystick */
- /* Get Max Number of Devices */
- 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);
- return SDL_SetError("Could not read joystick port.");
- }
- maxdevs = 0;
- 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);
- return SDL_SetError("Could not read callibration data.");
- }
-
- /* 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);
- return SDL_SetError("Could not call joystick port.");
- }
- 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 *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);
- }
- }
- }
- /* Return the number of devices found */
- numjoysticks = numdevs;
- return numdevs;
+ 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 */
+
+ /* Open GAME$ port */
+ if (joyPortOpen(&hJoyPort) < 0) {
+ return 0; /* Cannot open... report no joystick */
+ }
+ /* Get Max Number of Devices */
+ 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);
+ return SDL_SetError("Could not read joystick port.");
+ }
+ maxdevs = 0;
+ 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);
+ return SDL_SetError("Could not read callibration data.");
+ }
+
+ /* 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);
+ return SDL_SetError("Could not call joystick port.");
+ }
+ 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 *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);
+ }
+ }
+ }
+
+ /* Return the number of devices found */
+ numjoysticks = numdevs;
+ return numdevs;
}
static int OS2_NumJoysticks(void)
{
- return numjoysticks;
+ return numjoysticks;
}
static void OS2_JoystickDetect(void)
@@ -379,18 +399,18 @@ static void OS2_JoystickDetect(void)
static const char *OS2_JoystickGetDeviceName(int device_index)
{
- /* No need to verify if device exists, already done in upper layer */
- return SYS_JoyData[device_index].szDeviceName;
+ /* No need to verify if device exists, already done in upper layer */
+ return SYS_JoyData[device_index].szDeviceName;
}
static const char *OS2_JoystickGetDevicePath(int device_index)
{
- return NULL;
+ return NULL;
}
static int OS2_JoystickGetDevicePlayerIndex(int device_index)
{
- return -1;
+ return -1;
}
static void OS2_JoystickSetDevicePlayerIndex(int device_index, int player_index)
@@ -406,80 +426,75 @@ static SDL_JoystickGUID OS2_JoystickGetDeviceGUID(int device_index)
static SDL_JoystickID OS2_JoystickGetDeviceInstanceID(int device_index)
{
- return 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. */
+/* 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. */
/******************************************************************************/
static int OS2_JoystickOpen(SDL_Joystick *joystick, int device_index)
{
- 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_calloc(1, sizeof(*joystick->hwdata));
- if (!joystick->hwdata)
- {
- return SDL_OutOfMemory();
- }
-
- /* ShortCut Pointer */
- index = device_index;
- joystick->instance_id = device_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 = ((SDL_JOYSTICK_AXIS_MAX + SDL_JOYSTICK_AXIS_MIN)>>1) - SYS_JoyData[index].axes_med[i];
- joystick->hwdata->transaxes[i].scale1 = (float)SDL_abs((SDL_JOYSTICK_AXIS_MIN/SYS_JoyData[index].axes_min[i]));
- joystick->hwdata->transaxes[i].scale2 = (float)SDL_abs((SDL_JOYSTICK_AXIS_MAX/SYS_JoyData[index].axes_max[i]));
- }
- else
- {
- joystick->hwdata->transaxes[i].offset = 0;
- joystick->hwdata->transaxes[i].scale1 = 1.0f; /* Just in case */
- joystick->hwdata->transaxes[i].scale2 = 1.0f; /* Just in case */
- }
- }
-
- /* fill nbuttons, naxes, and nhats fields */
- 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->nballs = SYS_JoyData[index].balls; */
- joystick->nballs = 0; /* No support for balls at this time */
-
- return 0;
+ 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_calloc(1, sizeof(*joystick->hwdata));
+ if (!joystick->hwdata) {
+ return SDL_OutOfMemory();
+ }
+
+ /* ShortCut Pointer */
+ index = device_index;
+ joystick->instance_id = device_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 = ((SDL_JOYSTICK_AXIS_MAX + SDL_JOYSTICK_AXIS_MIN)>>1) - SYS_JoyData[index].axes_med[i];
+ joystick->hwdata->transaxes[i].scale1 = (float)SDL_abs((SDL_JOYSTICK_AXIS_MIN/SYS_JoyData[index].axes_min[i]));
+ joystick->hwdata->transaxes[i].scale2 = (float)SDL_abs((SDL_JOYSTICK_AXIS_MAX/SYS_JoyData[index].axes_max[i]));
+ } else {
+ joystick->hwdata->transaxes[i].offset = 0;
+ joystick->hwdata->transaxes[i].scale1 = 1.0f; /* Just in case */
+ joystick->hwdata->transaxes[i].scale2 = 1.0f; /* Just in case */
+ }
+ }
+
+ /* fill nbuttons, naxes, and nhats fields */
+ 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->nballs = SYS_JoyData[index].balls; */
+ joystick->nballs = 0; /* No support for balls at this time */
+
+ return 0;
}
static int OS2_JoystickRumble(SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)
{
- return SDL_Unsupported();
+ return SDL_Unsupported();
}
static int OS2_JoystickRumbleTriggers(SDL_Joystick *joystick, Uint16 left_rumble, Uint16 right_rumble)
{
- return SDL_Unsupported();
+ return SDL_Unsupported();
}
static Uint32 OS2_JoystickGetCapabilities(SDL_Joystick *joystick)
{
- return 0;
+ return 0;
}
static int OS2_JoystickSetLED(SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue)
{
- return SDL_Unsupported();
+ return SDL_Unsupported();
}
static int OS2_JoystickSendEffect(SDL_Joystick *joystick, const void *data, int size)
@@ -489,133 +504,145 @@ static int OS2_JoystickSendEffect(SDL_Joystick *joystick, const void *data, int
static int OS2_JoystickSetSensorsEnabled(SDL_Joystick *joystick, SDL_bool enabled)
{
- return SDL_Unsupported();
+ return SDL_Unsupported();
}
/***************************************************************************/
-/* 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. */
+/* 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. */
/***************************************************************************/
static void OS2_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; /* 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 */
- }
-
- /* Shortcut pointer */
- index = joystick->instance_id;
-
- /* 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;
- /* OS/2 basic drivers do not support more than 4 axes joysticks */
- }
- 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;
- }
-
- /* 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 = SDL_JOYSTICK_AXIS_MIN;
- }
- else
- {
- value *= transaxes[i].scale2;
- if (value < 0) value = SDL_JOYSTICK_AXIS_MAX;
- }
- 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))
- {
- SDL_PrivateJoystickButton(joystick, (Uint8)(i-corr), SDL_PRESSED);
- }
- else
- {
- 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);
- }
-
- /* joystick hat events */
- /* Not Supported under OS/2 */
- /* joystick ball events */
- /* Not Supported under OS/2 */
+ 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; /* 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 */
+ }
+
+ /* Shortcut pointer */
+ index = joystick->instance_id;
+
+ /* 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;
+ }
+ /* OS/2 basic drivers do not support more than 4 axes joysticks */
+ }
+ 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;
+ }
+
+ /* 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 = SDL_JOYSTICK_AXIS_MIN;
+ }
+ } else {
+ value *= transaxes[i].scale2;
+ if (value < 0) {
+ value = SDL_JOYSTICK_AXIS_MAX;
+ }
+ }
+ 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)) {
+ SDL_PrivateJoystickButton(joystick, (Uint8)(i-corr), SDL_PRESSED);
+ } else {
+ 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);
+ }
+ }
+
+ /* joystick hat events */
+ /* Not Supported under OS/2 */
+ /* joystick ball events */
+ /* Not Supported under OS/2 */
}
/******************************************/
@@ -623,8 +650,8 @@ static void OS2_JoystickUpdate(SDL_Joystick *joystick)
/******************************************/
static void OS2_JoystickClose(SDL_Joystick *joystick)
{
- /* free system specific hardware data */
- SDL_free(joystick->hwdata);
+ /* free system specific hardware data */
+ SDL_free(joystick->hwdata);
}
/********************************************************************/
@@ -632,12 +659,12 @@ static void OS2_JoystickClose(SDL_Joystick *joystick)
/********************************************************************/
static void OS2_JoystickQuit(void)
{
- joyPortClose(&hJoyPort);
+ joyPortClose(&hJoyPort);
}
static SDL_bool OS2_JoystickGetGamepadMapping(int device_index, SDL_GamepadMapping *out)
{
- return SDL_FALSE;
+ return SDL_FALSE;
}
@@ -650,38 +677,38 @@ static SDL_bool OS2_JoystickGetGamepadMapping(int device_index, SDL_GamepadMappi
/*****************************************/
static int joyPortOpen(HFILE * hGame)
{
- 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 != NULLHANDLE) return 0;
-
- /* Open GAME$ for read */
- rc = DosOpen("GAME$ ", hGame, &ulAction, 0, FILE_READONLY,
- FILE_OPEN, OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE, NULL);
- if (rc != 0)
- {
- return SDL_SetError("Could not open Joystick Port.");
- }
-
- /* 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);
- return SDL_SetError("Could not get Joystick Driver version.");
- }
- if (ulVersion < 0x20)
- {
- joyPortClose(hGame);
- return SDL_SetError("Driver too old. At least IBM driver version 2.0 required.");
- }
- return 0;
+ 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 != NULLHANDLE) {
+ return 0;
+ }
+
+ /* Open GAME$ for read */
+ rc = DosOpen("GAME$ ", hGame, &ulAction, 0, FILE_READONLY,
+ FILE_OPEN, OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE, NULL);
+ if (rc != 0) {
+ return SDL_SetError("Could not open Joystick Port.");
+ }
+
+ /* 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);
+ return SDL_SetError("Could not get Joystick Driver version.");
+ }
+ if (ulVersion < 0x20) {
+ joyPortClose(hGame);
+ return SDL_SetError("Driver too old. At least IBM driver version 2.0 required.");
+ }
+
+ return 0;
}
/****************************/
@@ -689,8 +716,10 @@ static int joyPortOpen(HFILE * hGame)
/****************************/
static void joyPortClose(HFILE * hGame)
{
- if (*hGame != NULLHANDLE) DosClose(*hGame);
- *hGame = NULLHANDLE;
+ if (*hGame != NULLHANDLE) {
+ DosClose(*hGame);
+ }
+ *hGame = NULLHANDLE;
}
/***************************/
@@ -698,106 +727,111 @@ static void joyPortClose(HFILE * hGame)
/***************************/
static int joyGetEnv(struct _joycfg * joydata)
{
- const 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;
- }
-
- /* Joystick Environment is defined! */
- while (*joyenv == ' ' && *joyenv != 0) {
- joyenv++; /* jump spaces... */
- }
-
- /* If the string name starts with '... get if fully */
- if (*joyenv == '\'') {
- joyenv++;
- joyenv += joyGetData(joyenv,joydata->name,'\'',sizeof(joydata->name));
- }
- /* If not, get it until the next space */
- else if (*joyenv == '\"') {
- 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 = SDL_atoi(tempnumber);
-
- /* Now get the number of buttons */
- while (*joyenv == ' ' && *joyenv != 0) joyenv++; /* jump spaces... */
- joyenv += joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
- joydata->buttons = SDL_atoi(tempnumber);
-
- /* Now get the number of hats */
- while (*joyenv == ' ' && *joyenv != 0) joyenv++; /* jump spaces... */
- joyenv += joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
- joydata->hats = SDL_atoi(tempnumber);
-
- /* Now get the number of balls */
- while (*joyenv==' ' && *joyenv != 0) joyenv++; /* jump spaces... */
- joyenv += joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
- joydata->balls = SDL_atoi(tempnumber);
- return 1;
+ const 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;
+ }
+
+ /* Joystick Environment is defined! */
+ while (*joyenv == ' ' && *joyenv != 0) {
+ joyenv++; /* jump spaces... */
+ }
+
+ /* If the string name starts with '... get if fully */
+ if (*joyenv == '\'') {
+ joyenv++;
+ joyenv += joyGetData(joyenv,joydata->name,'\'',sizeof(joydata->name));
+ }
+ /* If not, get it until the next space */
+ else if (*joyenv == '\"') {
+ 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 = SDL_atoi(tempnumber);
+
+ /* Now get the number of buttons */
+ while (*joyenv == ' ' && *joyenv != 0) {
+ joyenv++; /* jump spaces... */
+ }
+ joyenv += joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
+ joydata->buttons = SDL_atoi(tempnumber);
+
+ /* Now get the number of hats */
+ while (*joyenv == ' ' && *joyenv != 0) {
+ joyenv++; /* jump spaces... */
+ }
+ joyenv += joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
+ joydata->hats = SDL_atoi(tempnumber);
+
+ /* Now get the number of balls */
+ while (*joyenv==' ' && *joyenv != 0) {
+ joyenv++; /* jump spaces... */
+ }
+ joyenv += joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
+ joydata->balls = SDL_atoi(tempnumber);
+
+ return 1;
}
/************************************************************************/
-/* 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. */
+/* 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. */
/************************************************************************/
static int joyGetData(const 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 */
-
- 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;
+ 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;
}
-SDL_JoystickDriver SDL_OS2_JoystickDriver =
-{
- OS2_JoystickInit,
- OS2_NumJoysticks,
- OS2_JoystickDetect,
- OS2_JoystickGetDeviceName,
- OS2_JoystickGetDevicePath,
- OS2_JoystickGetDevicePlayerIndex,
- OS2_JoystickSetDevicePlayerIndex,
- OS2_JoystickGetDeviceGUID,
- OS2_JoystickGetDeviceInstanceID,
- OS2_JoystickOpen,
- OS2_JoystickRumble,
- OS2_JoystickRumbleTriggers,
- OS2_JoystickGetCapabilities,
- OS2_JoystickSetLED,
- OS2_JoystickSendEffect,
- OS2_JoystickSetSensorsEnabled,
- OS2_JoystickUpdate,
- OS2_JoystickClose,
- OS2_JoystickQuit,
- OS2_JoystickGetGamepadMapping
+SDL_JoystickDriver SDL_OS2_JoystickDriver = {
+ OS2_JoystickInit,
+ OS2_NumJoysticks,
+ OS2_JoystickDetect,
+ OS2_JoystickGetDeviceName,
+ OS2_JoystickGetDevicePath,
+ OS2_JoystickGetDevicePlayerIndex,
+ OS2_JoystickSetDevicePlayerIndex,
+ OS2_JoystickGetDeviceGUID,
+ OS2_JoystickGetDeviceInstanceID,
+ OS2_JoystickOpen,
+ OS2_JoystickRumble,
+ OS2_JoystickRumbleTriggers,
+ OS2_JoystickGetCapabilities,
+ OS2_JoystickSetLED,
+ OS2_JoystickSendEffect,
+ OS2_JoystickSetSensorsEnabled,
+ OS2_JoystickUpdate,
+ OS2_JoystickClose,
+ OS2_JoystickQuit,
+ OS2_JoystickGetGamepadMapping
};
#endif /* SDL_JOYSTICK_OS2 */