annotate src/joystick/os2/SDL_sysjoystick.c @ 1361:19418e4422cb

New configure-based build system. Still work in progress, but much improved
author Sam Lantinga <slouken@libsdl.org>
date Thu, 16 Feb 2006 10:11:48 +0000
parents c71e05b4dc2e
children 3793c4b34a92
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 /* OS/2 Joystick driver, contributed by Daniel Caetano */
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24
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25 #include <mem.h>
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26
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27 #define INCL_DOSDEVICES
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28 #define INCL_DOSDEVIOCTL
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29 #define INCL_DOSMEMMGR
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30 #include <os2.h>
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31 #include "joyos2.h"
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32
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33 #include "SDL_joystick.h"
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34 #include "../SDL_sysjoystick.h"
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35 #include "../SDL_joystick_c.h"
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36
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37 HFILE hJoyPort = NULL; /* Joystick GAME$ Port Address */
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38 #define MAX_JOYSTICKS 2 /* Maximum of two joysticks */
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39 #define MAX_AXES 4 /* each joystick can have up to 4 axes */
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40 #define MAX_BUTTONS 8 /* 8 buttons */
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41 #define MAX_HATS 0 /* 0 hats - OS/2 doesn't support it */
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42 #define MAX_BALLS 0 /* and 0 balls - OS/2 doesn't support it */
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43 #define AXIS_MIN -32768 /* minimum value for axes coordinate */
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44 #define AXIS_MAX 32767 /* maximum value for axes coordinate */
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45 #define MAX_JOYNAME 128 /* Joystick name may have 128 characters */
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46 /* limit axes to 256 possible positions to filter out noise */
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47 #define JOY_AXIS_THRESHOLD (((AXIS_MAX)-(AXIS_MIN))/256)
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48 /* Calc Button Flag for buttons A to D */
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49 #define JOY_BUTTON_FLAG(n) (1<<n)
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50
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51 /* Joystick data... hold information about detected devices */
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52 struct _SYS_JoyData
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53 {
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54 Sint8 id; // Device ID
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55 char szDeviceName[MAX_JOYNAME]; // Device Name
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56 char axes; // Number of axes
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57 char buttons; // Number of buttons
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58 char hats; // Number of buttons
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59 char balls; // Number of buttons
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60 int axes_min[MAX_AXES]; // minimum callibration value for axes
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61 int axes_med[MAX_AXES]; // medium callibration value for axes
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62 int axes_max[MAX_AXES]; // maximum callibration value for axes
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63 int buttoncalc[4]; // Used for buttons 5, 6, 7 and 8.
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64 } SYS_JoyData[MAX_JOYSTICKS];
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65
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66
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67 /* Structure used to convert data from OS/2 driver format to SDL format */
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68 struct joystick_hwdata
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69 {
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70 Sint8 id;
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71 struct _transaxes
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72 {
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73 int offset; /* Center Offset */
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74 float scale1; /* Center to left/up Scale */
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75 float scale2; /* Center to right/down Scale */
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76 } transaxes[MAX_AXES];
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77 };
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78
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79 /* Structure used to get values from Joystick Environment Variable */
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80 struct _joycfg
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81 {
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82 char name[MAX_JOYNAME];
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83 unsigned int axes;
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84 unsigned int buttons;
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85 unsigned int hats;
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86 unsigned int balls;
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87 };
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88
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89 /* OS/2 Implementation Function Prototypes */
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90 APIRET joyPortOpen(HFILE * hGame);
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91 void joyPortClose(HFILE * hGame);
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92 int joyGetData(char *joyenv, char *name, char stopchar, size_t maxchars);
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93 int joyGetEnv(struct _joycfg * joydata);
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94
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95
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96
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97 /************************************************************************/
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98 /* Function to scan the system for joysticks. */
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99 /* This function should set SDL_numjoysticks to the number of available */
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100 /* joysticks. Joystick 0 should be the system default joystick. */
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101 /* It should return 0, or -1 on an unrecoverable fatal error. */
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102 /************************************************************************/
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103 int SDL_SYS_JoystickInit(void)
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104 {
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105 APIRET rc; /* Generic OS/2 return code */
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106 GAME_PORT_STRUCT stJoyStatus; /* Joystick Status Structure */
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107 GAME_PARM_STRUCT stGameParms; /* Joystick Parameter Structure */
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108 GAME_CALIB_STRUCT stGameCalib; /* Calibration Struct */
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109 ULONG ulDataLen; /* Size of data */
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110 ULONG ulLastTick; /* Tick Counter for timing operations */
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111 Uint8 maxdevs; /* Maximum number of devices */
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112 Uint8 numdevs; /* Number of present devices */
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113 Uint8 maxbut; /* Maximum number of buttons... */
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114 Uint8 i; /* Temporary Count Vars */
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115 Uint8 ucNewJoystickMask; /* Mask for Joystick Detection */
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116 struct _joycfg joycfg; /* Joy Configuration from envvar */
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117
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118
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119 /* Get Max Number of Devices */
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120 rc = joyPortOpen(&hJoyPort); /* Open GAME$ port */
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121 if (rc != 0) return 0; /* Cannot open... report no joystick */
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122 ulDataLen = sizeof(stGameParms);
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123 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_PARMS,
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124 NULL, 0, NULL, &stGameParms, ulDataLen, &ulDataLen); /* Ask device info */
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125 if (rc != 0)
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126 {
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127 joyPortClose(&hJoyPort);
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128 SDL_SetError("Could not read joystick port.");
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129 return -1;
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130 }
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131 if (stGameParms.useA != 0) maxdevs++;
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132 if (stGameParms.useB != 0) maxdevs++;
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133 if ( maxdevs > MAX_JOYSTICKS ) maxdevs = MAX_JOYSTICKS;
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134
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135 /* Defines min/max axes values (callibration) */
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136 ulDataLen = sizeof(stGameCalib);
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137 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_CALIB,
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138 NULL, 0, NULL, &stGameCalib, ulDataLen, &ulDataLen);
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139 if (rc != 0)
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140 {
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141 joyPortClose(&hJoyPort);
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142 SDL_SetError("Could not read callibration data.");
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143 return -1;
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144 }
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145
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146 /* Determine how many joysticks are active */
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147 numdevs = 0; /* Points no device */
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148 ucNewJoystickMask = 0x0F; /* read all 4 joystick axis */
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149 ulDataLen = sizeof(ucNewJoystickMask);
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150 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_RESET,
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151 &ucNewJoystickMask, ulDataLen, &ulDataLen, NULL, 0, NULL);
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152 if (rc == 0)
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153 {
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154 ulDataLen = sizeof(stJoyStatus);
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155 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET,
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parents:
diff changeset
156 NULL, 0, NULL, &stJoyStatus, ulDataLen, &ulDataLen);
173c063d4f55 OS/2 port!
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diff changeset
157 if (rc != 0)
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diff changeset
158 {
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diff changeset
159 joyPortClose(&hJoyPort);
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diff changeset
160 SDL_SetError("Could not call joystick port.");
173c063d4f55 OS/2 port!
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diff changeset
161 return -1;
173c063d4f55 OS/2 port!
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diff changeset
162 }
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diff changeset
163 ulLastTick = stJoyStatus.ulJs_Ticks;
173c063d4f55 OS/2 port!
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diff changeset
164 while (stJoyStatus.ulJs_Ticks == ulLastTick)
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diff changeset
165 {
173c063d4f55 OS/2 port!
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166 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET,
173c063d4f55 OS/2 port!
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diff changeset
167 NULL, 0, NULL, &stJoyStatus, ulDataLen, &ulDataLen);
173c063d4f55 OS/2 port!
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diff changeset
168 }
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169 if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0) numdevs++;
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170 if (((stJoyStatus.ucJs_JoyStickMask >> 2) & 0x03) > 0) numdevs++;
173c063d4f55 OS/2 port!
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parents:
diff changeset
171 }
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diff changeset
172
173c063d4f55 OS/2 port!
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diff changeset
173 if (numdevs>maxdevs) numdevs=maxdevs;
173c063d4f55 OS/2 port!
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diff changeset
174
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diff changeset
175 /* If *any* joystick was detected... Let's configure SDL for them */
173c063d4f55 OS/2 port!
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diff changeset
176 if (numdevs > 0)
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diff changeset
177 {
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diff changeset
178 /* Verify if it is a "user defined" joystick */
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diff changeset
179 if (joyGetEnv(&joycfg))
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180 {
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181 GAME_3POS_STRUCT * axis[4];
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diff changeset
182 axis[0] = &stGameCalib.Ax;
173c063d4f55 OS/2 port!
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diff changeset
183 axis[1] = &stGameCalib.Ay;
173c063d4f55 OS/2 port!
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diff changeset
184 axis[2] = &stGameCalib.Bx;
173c063d4f55 OS/2 port!
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diff changeset
185 axis[3] = &stGameCalib.By;
173c063d4f55 OS/2 port!
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parents:
diff changeset
186 /* Say it has one device only (user defined is always one device only) */
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diff changeset
187 numdevs = 1;
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diff changeset
188 /* Define Device 0 as... */
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diff changeset
189 SYS_JoyData[0].id=0;
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diff changeset
190 /* Define Number of Axes... up to 4 */
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diff changeset
191 if (joycfg.axes>MAX_AXES) joycfg.axes = MAX_AXES;
173c063d4f55 OS/2 port!
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diff changeset
192 SYS_JoyData[0].axes = joycfg.axes;
173c063d4f55 OS/2 port!
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parents:
diff changeset
193 /* Define number of buttons... 8 if 2 axes, 6 if 3 axes and 4 if 4 axes */
173c063d4f55 OS/2 port!
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diff changeset
194 maxbut = MAX_BUTTONS;
173c063d4f55 OS/2 port!
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diff changeset
195 if (joycfg.axes>2) maxbut-=((joycfg.axes-2)<<1); /* MAX_BUTTONS - 2*(axes-2) */
173c063d4f55 OS/2 port!
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diff changeset
196 if (joycfg.buttons > maxbut) joycfg.buttons = maxbut;
173c063d4f55 OS/2 port!
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diff changeset
197 SYS_JoyData[0].buttons = joycfg.buttons;
173c063d4f55 OS/2 port!
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parents:
diff changeset
198 /* Define number of hats */
173c063d4f55 OS/2 port!
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diff changeset
199 if (joycfg.hats > MAX_HATS) joycfg.hats = MAX_HATS;
173c063d4f55 OS/2 port!
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diff changeset
200 SYS_JoyData[0].hats = joycfg.hats;
173c063d4f55 OS/2 port!
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parents:
diff changeset
201 /* Define number of balls */
173c063d4f55 OS/2 port!
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diff changeset
202 if (joycfg.balls > MAX_BALLS) joycfg.balls = MAX_BALLS;
173c063d4f55 OS/2 port!
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diff changeset
203 SYS_JoyData[0].balls = joycfg.balls;
173c063d4f55 OS/2 port!
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parents:
diff changeset
204 /* Initialize Axes Callibration Values */
173c063d4f55 OS/2 port!
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parents:
diff changeset
205 for (i=0; i<joycfg.axes; i++)
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206 {
173c063d4f55 OS/2 port!
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207 SYS_JoyData[0].axes_min[i] = axis[i]->lower;
173c063d4f55 OS/2 port!
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diff changeset
208 SYS_JoyData[0].axes_med[i] = axis[i]->centre;
173c063d4f55 OS/2 port!
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diff changeset
209 SYS_JoyData[0].axes_max[i] = axis[i]->upper;
173c063d4f55 OS/2 port!
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diff changeset
210 }
173c063d4f55 OS/2 port!
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diff changeset
211 /* Initialize Buttons 5 to 8 structures */
173c063d4f55 OS/2 port!
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diff changeset
212 if (joycfg.buttons>=5) SYS_JoyData[0].buttoncalc[0]=((axis[2]->lower+axis[3]->centre)>>1);
173c063d4f55 OS/2 port!
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213 if (joycfg.buttons>=6) SYS_JoyData[0].buttoncalc[1]=((axis[3]->lower+axis[3]->centre)>>1);
173c063d4f55 OS/2 port!
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diff changeset
214 if (joycfg.buttons>=7) SYS_JoyData[0].buttoncalc[2]=((axis[2]->upper+axis[3]->centre)>>1);
173c063d4f55 OS/2 port!
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diff changeset
215 if (joycfg.buttons>=8) SYS_JoyData[0].buttoncalc[3]=((axis[3]->upper+axis[3]->centre)>>1);
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diff changeset
216 /* Intialize Joystick Name */
1338
604d73db6802 Removed uses of stdlib.h and string.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
217 SDL_strcpy (SYS_JoyData[0].szDeviceName,joycfg.name);
1190
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218 }
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diff changeset
219 /* Default Init ... autoconfig */
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diff changeset
220 else
173c063d4f55 OS/2 port!
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221 {
173c063d4f55 OS/2 port!
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diff changeset
222 /* if two devices were detected... configure as Joy1 4 axis and Joy2 2 axis */
173c063d4f55 OS/2 port!
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diff changeset
223 if (numdevs==2)
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224 {
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diff changeset
225 /* Define Device 0 as 4 axes, 4 buttons */
173c063d4f55 OS/2 port!
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diff changeset
226 SYS_JoyData[0].id=0;
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227 SYS_JoyData[0].axes = 4;
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228 SYS_JoyData[0].buttons = 4;
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229 SYS_JoyData[0].hats = 0;
173c063d4f55 OS/2 port!
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230 SYS_JoyData[0].balls = 0;
173c063d4f55 OS/2 port!
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231 SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower;
173c063d4f55 OS/2 port!
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232 SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre;
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233 SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper;
173c063d4f55 OS/2 port!
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234 SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower;
173c063d4f55 OS/2 port!
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235 SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre;
173c063d4f55 OS/2 port!
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236 SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper;
173c063d4f55 OS/2 port!
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diff changeset
237 SYS_JoyData[0].axes_min[2] = stGameCalib.Bx.lower;
173c063d4f55 OS/2 port!
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238 SYS_JoyData[0].axes_med[2] = stGameCalib.Bx.centre;
173c063d4f55 OS/2 port!
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239 SYS_JoyData[0].axes_max[2] = stGameCalib.Bx.upper;
173c063d4f55 OS/2 port!
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240 SYS_JoyData[0].axes_min[3] = stGameCalib.By.lower;
173c063d4f55 OS/2 port!
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diff changeset
241 SYS_JoyData[0].axes_med[3] = stGameCalib.By.centre;
173c063d4f55 OS/2 port!
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diff changeset
242 SYS_JoyData[0].axes_max[3] = stGameCalib.By.upper;
173c063d4f55 OS/2 port!
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parents:
diff changeset
243 /* Define Device 1 as 2 axes, 2 buttons */
173c063d4f55 OS/2 port!
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diff changeset
244 SYS_JoyData[1].id=1;
173c063d4f55 OS/2 port!
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diff changeset
245 SYS_JoyData[1].axes = 2;
173c063d4f55 OS/2 port!
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diff changeset
246 SYS_JoyData[1].buttons = 2;
173c063d4f55 OS/2 port!
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diff changeset
247 SYS_JoyData[1].hats = 0;
173c063d4f55 OS/2 port!
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diff changeset
248 SYS_JoyData[1].balls = 0;
173c063d4f55 OS/2 port!
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249 SYS_JoyData[1].axes_min[0] = stGameCalib.Bx.lower;
173c063d4f55 OS/2 port!
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250 SYS_JoyData[1].axes_med[0] = stGameCalib.Bx.centre;
173c063d4f55 OS/2 port!
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251 SYS_JoyData[1].axes_max[0] = stGameCalib.Bx.upper;
173c063d4f55 OS/2 port!
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252 SYS_JoyData[1].axes_min[1] = stGameCalib.By.lower;
173c063d4f55 OS/2 port!
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253 SYS_JoyData[1].axes_med[1] = stGameCalib.By.centre;
173c063d4f55 OS/2 port!
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diff changeset
254 SYS_JoyData[1].axes_max[1] = stGameCalib.By.upper;
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diff changeset
255 }
173c063d4f55 OS/2 port!
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diff changeset
256 /* One joystick only? */
173c063d4f55 OS/2 port!
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diff changeset
257 else
173c063d4f55 OS/2 port!
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diff changeset
258 {
173c063d4f55 OS/2 port!
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parents:
diff changeset
259 /* If it is joystick A... */
173c063d4f55 OS/2 port!
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parents:
diff changeset
260 if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0)
173c063d4f55 OS/2 port!
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parents:
diff changeset
261 {
173c063d4f55 OS/2 port!
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parents:
diff changeset
262 /* Define Device 0 as 2 axes, 4 buttons */
173c063d4f55 OS/2 port!
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diff changeset
263 SYS_JoyData[0].id=0;
173c063d4f55 OS/2 port!
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diff changeset
264 SYS_JoyData[0].axes = 2;
173c063d4f55 OS/2 port!
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diff changeset
265 SYS_JoyData[0].buttons = 4;
173c063d4f55 OS/2 port!
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diff changeset
266 SYS_JoyData[0].hats = 0;
173c063d4f55 OS/2 port!
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diff changeset
267 SYS_JoyData[0].balls = 0;
173c063d4f55 OS/2 port!
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diff changeset
268 SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower;
173c063d4f55 OS/2 port!
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diff changeset
269 SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre;
173c063d4f55 OS/2 port!
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diff changeset
270 SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper;
173c063d4f55 OS/2 port!
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diff changeset
271 SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower;
173c063d4f55 OS/2 port!
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diff changeset
272 SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre;
173c063d4f55 OS/2 port!
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diff changeset
273 SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper;
173c063d4f55 OS/2 port!
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diff changeset
274 }
173c063d4f55 OS/2 port!
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parents:
diff changeset
275 /* If not, it is joystick B */
173c063d4f55 OS/2 port!
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parents:
diff changeset
276 else
173c063d4f55 OS/2 port!
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parents:
diff changeset
277 {
173c063d4f55 OS/2 port!
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parents:
diff changeset
278 /* Define Device 1 as 2 axes, 2 buttons */
173c063d4f55 OS/2 port!
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diff changeset
279 SYS_JoyData[0].id=1;
173c063d4f55 OS/2 port!
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diff changeset
280 SYS_JoyData[0].axes = 2;
173c063d4f55 OS/2 port!
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diff changeset
281 SYS_JoyData[0].buttons = 2;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
282 SYS_JoyData[0].hats = 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
283 SYS_JoyData[0].balls = 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
284 SYS_JoyData[0].axes_min[0] = stGameCalib.Bx.lower;
173c063d4f55 OS/2 port!
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parents:
diff changeset
285 SYS_JoyData[0].axes_med[0] = stGameCalib.Bx.centre;
173c063d4f55 OS/2 port!
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diff changeset
286 SYS_JoyData[0].axes_max[0] = stGameCalib.Bx.upper;
173c063d4f55 OS/2 port!
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diff changeset
287 SYS_JoyData[0].axes_min[1] = stGameCalib.By.lower;
173c063d4f55 OS/2 port!
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diff changeset
288 SYS_JoyData[0].axes_med[1] = stGameCalib.By.centre;
173c063d4f55 OS/2 port!
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diff changeset
289 SYS_JoyData[0].axes_max[1] = stGameCalib.By.upper;
173c063d4f55 OS/2 port!
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diff changeset
290 }
173c063d4f55 OS/2 port!
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parents:
diff changeset
291 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
292 /* Hack to define Joystick Port Names */
173c063d4f55 OS/2 port!
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parents:
diff changeset
293 if ( numdevs > maxdevs ) numdevs = maxdevs;
1338
604d73db6802 Removed uses of stdlib.h and string.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
294 for (i=0; i<numdevs; i++) {
604d73db6802 Removed uses of stdlib.h and string.h
Sam Lantinga <slouken@libsdl.org>
parents: 1336
diff changeset
295 SDL_sprintf (SYS_JoyData[i].szDeviceName, SDL_arraysize(szDeviceName), "Default Joystick %c", 'A'+SYS_JoyData[i].id);
1190
173c063d4f55 OS/2 port!
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parents:
diff changeset
296 }
173c063d4f55 OS/2 port!
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parents:
diff changeset
297 }
173c063d4f55 OS/2 port!
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parents:
diff changeset
298 /* Return the number of devices found */
173c063d4f55 OS/2 port!
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parents:
diff changeset
299 return(numdevs);
173c063d4f55 OS/2 port!
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parents:
diff changeset
300 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
301
173c063d4f55 OS/2 port!
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parents:
diff changeset
302
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parents:
diff changeset
303
173c063d4f55 OS/2 port!
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parents:
diff changeset
304 /***********************************************************/
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parents:
diff changeset
305 /* Function to get the device-dependent name of a joystick */
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parents:
diff changeset
306 /***********************************************************/
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parents:
diff changeset
307 const char *SDL_SYS_JoystickName(int index)
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parents:
diff changeset
308 {
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parents:
diff changeset
309 /* No need to verify if device exists, already done in upper layer */
173c063d4f55 OS/2 port!
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parents:
diff changeset
310 return(SYS_JoyData[index].szDeviceName);
173c063d4f55 OS/2 port!
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parents:
diff changeset
311 }
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parents:
diff changeset
312
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parents:
diff changeset
313
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parents:
diff changeset
314
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parents:
diff changeset
315 /******************************************************************************/
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parents:
diff changeset
316 /* Function to open a joystick for use. */
173c063d4f55 OS/2 port!
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parents:
diff changeset
317 /* The joystick to open is specified by the index field of the joystick. */
173c063d4f55 OS/2 port!
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parents:
diff changeset
318 /* This should fill the nbuttons and naxes fields of the joystick structure. */
173c063d4f55 OS/2 port!
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parents:
diff changeset
319 /* It returns 0, or -1 if there is an error. */
173c063d4f55 OS/2 port!
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parents:
diff changeset
320 /******************************************************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
321 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick)
173c063d4f55 OS/2 port!
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parents:
diff changeset
322 {
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parents:
diff changeset
323 int index; /* Index shortcut for index in joystick structure */
173c063d4f55 OS/2 port!
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parents:
diff changeset
324 int i; /* Generic Counter */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
325
173c063d4f55 OS/2 port!
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parents:
diff changeset
326 /* allocate memory for system specific hardware data */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
327 joystick->hwdata = (struct joystick_hwdata *) SDL_malloc(sizeof(*joystick->hwdata));
1190
173c063d4f55 OS/2 port!
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parents:
diff changeset
328 if (joystick->hwdata == NULL)
173c063d4f55 OS/2 port!
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parents:
diff changeset
329 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
330 SDL_OutOfMemory();
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
331 return(-1);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
332 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
333 /* Reset Hardware Data */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
334 SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata));
1190
173c063d4f55 OS/2 port!
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parents:
diff changeset
335
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
336 /* ShortCut Pointer */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
337 index = joystick->index;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
338 /* Define offsets and scales for all axes */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
339 joystick->hwdata->id = SYS_JoyData[index].id;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
340 for ( i = 0; i < MAX_AXES; ++i )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
341 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
342 if ( (i<2) || i < SYS_JoyData[index].axes )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
343 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
344 joystick->hwdata->transaxes[i].offset = ((AXIS_MAX + AXIS_MIN)>>1) - SYS_JoyData[index].axes_med[i];
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
345 //joystick->hwdata->transaxes[i].scale = (float)((AXIS_MAX - AXIS_MIN)/(SYS_JoyData[index].axes_max[i]-SYS_JoyData[index].axes_min[i]));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
346 joystick->hwdata->transaxes[i].scale1 = (float)abs((AXIS_MIN/SYS_JoyData[index].axes_min[i]));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
347 joystick->hwdata->transaxes[i].scale2 = (float)abs((AXIS_MAX/SYS_JoyData[index].axes_max[i]));
173c063d4f55 OS/2 port!
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parents:
diff changeset
348 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
349 else
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
350 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
351 joystick->hwdata->transaxes[i].offset = 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
352 //joystick->hwdata->transaxes[i].scale = 1.0; /* Just in case */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
353 joystick->hwdata->transaxes[i].scale1 = 1.0; /* Just in case */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
354 joystick->hwdata->transaxes[i].scale2 = 1.0; /* Just in case */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
355 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
356 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
357
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
358 /* fill nbuttons, naxes, and nhats fields */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
359 joystick->nbuttons = SYS_JoyData[index].buttons;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
360 joystick->naxes = SYS_JoyData[index].axes;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
361 /* joystick->nhats = SYS_JoyData[index].hats; */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
362 joystick->nhats = 0; /* No support for hats at this time */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
363 /* joystick->nballs = SYS_JoyData[index].balls; */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
364 joystick->nballs = 0; /* No support for balls at this time */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
365 return 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
366 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
367
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
368
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
369
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
370 /***************************************************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
371 /* Function to update the state of a joystick - called as a device poll. */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
372 /* This function shouldn't update the joystick structure directly, */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
373 /* but instead should call SDL_PrivateJoystick*() to deliver events */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
374 /* and update joystick device state. */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
375 /***************************************************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
376 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
377 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
378 APIRET rc; /* Generic OS/2 return code */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
379 int index; /* index shortcurt to joystick index */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
380 int i; /* Generic counter */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
381 int normbut; /* Number of buttons reported by joystick */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
382 int corr; /* Correction for button names */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
383 Sint16 value, change; /* Values used to update axis values */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
384 struct _transaxes *transaxes; /* Shortcut for Correction structure */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
385 Uint32 pos[MAX_AXES]; /* Vector to inform the Axis status */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
386 ULONG ulDataLen; /* Size of data */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
387 GAME_STATUS_STRUCT stGameStatus; /* Joystick Status Structure */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
388
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
389 ulDataLen = sizeof(stGameStatus);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
390 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_STATUS,
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
391 NULL, 0, NULL, &stGameStatus, ulDataLen, &ulDataLen);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
392 if (rc != 0)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
393 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
394 SDL_SetError("Could not read joystick status.");
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
395 return; /* Could not read data */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
396 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
397
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
398 /* Shortcut pointer */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
399 index = joystick->index;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
400 /* joystick motion events */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
401
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
402 if (SYS_JoyData[index].id == 0)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
403 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
404 pos[0] = stGameStatus.curdata.A.x;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
405 pos[1] = stGameStatus.curdata.A.y;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
406 if (SYS_JoyData[index].axes >= 3) pos[2] = stGameStatus.curdata.B.x;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
407 else pos[2]=0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
408 if (SYS_JoyData[index].axes >= 4) pos[3] = stGameStatus.curdata.B.y;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
409 else pos[3]=0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
410 pos[4]=0; /* OS/2 basic drivers do not support more than 4 axes joysticks */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
411 pos[5]=0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
412 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
413 else if (SYS_JoyData[index].id == 1)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
414 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
415 pos[0] = stGameStatus.curdata.B.x;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
416 pos[1] = stGameStatus.curdata.B.y;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
417 pos[2]=0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
418 pos[3]=0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
419 pos[4]=0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
420 pos[5]=0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
421 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
422
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
423 /* Corrects the movements using the callibration */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
424 transaxes = joystick->hwdata->transaxes;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
425 for (i = 0; i < joystick->naxes; i++)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
426 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
427 value = pos[i] + transaxes[i].offset;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
428 if (value<0)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
429 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
430 value*=transaxes[i].scale1;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
431 if (value>0) value = AXIS_MIN;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
432 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
433 else
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
434 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
435 value*=transaxes[i].scale2;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
436 if (value<0) value = AXIS_MAX;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
437 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
438 change = (value - joystick->axes[i]);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
439 if ( (change < -JOY_AXIS_THRESHOLD) || (change > JOY_AXIS_THRESHOLD) )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
440 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
441 SDL_PrivateJoystickAxis(joystick, (Uint8)i, (Sint16)value);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
442 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
443 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
444
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
445 /* joystick button A to D events */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
446 if (SYS_JoyData[index].id == 1) corr = 2;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
447 else corr = 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
448 normbut=4; /* Number of normal buttons */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
449 if (joystick->nbuttons<normbut) normbut = joystick->nbuttons;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
450 for ( i = corr; (i-corr) < normbut; ++i )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
451 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
452 /*
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
453 Button A: 1110 0000
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
454 Button B: 1101 0000
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
455 Button C: 1011 0000
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
456 Button D: 0111 0000
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
457 */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
458 if ( (~stGameStatus.curdata.butMask)>>4 & JOY_BUTTON_FLAG(i) )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
459 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
460 if ( ! joystick->buttons[i-corr] )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
461 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
462 SDL_PrivateJoystickButton(joystick, (Uint8)(i-corr), SDL_PRESSED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
463 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
464 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
465 else
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
466 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
467 if ( joystick->buttons[i-corr] )
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
468 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
469 SDL_PrivateJoystickButton(joystick, (Uint8)(i-corr), SDL_RELEASED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
470 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
471 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
472 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
473
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
474 /* Joystick button E to H buttons */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
475 /*
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
476 Button E: Axis 2 X Left
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
477 Button F: Axis 2 Y Up
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
478 Button G: Axis 2 X Right
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
479 Button H: Axis 2 Y Down
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
480 */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
481 if (joystick->nbuttons>=5)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
482 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
483 if (stGameStatus.curdata.B.x < SYS_JoyData[index].buttoncalc[0]) SDL_PrivateJoystickButton(joystick, (Uint8)4, SDL_PRESSED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
484 else SDL_PrivateJoystickButton(joystick, (Uint8)4, SDL_RELEASED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
485 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
486 if (joystick->nbuttons>=6)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
487 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
488 if (stGameStatus.curdata.B.y < SYS_JoyData[index].buttoncalc[1]) SDL_PrivateJoystickButton(joystick, (Uint8)5, SDL_PRESSED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
489 else SDL_PrivateJoystickButton(joystick, (Uint8)5, SDL_RELEASED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
490 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
491 if (joystick->nbuttons>=7)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
492 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
493 if (stGameStatus.curdata.B.x > SYS_JoyData[index].buttoncalc[2]) SDL_PrivateJoystickButton(joystick, (Uint8)6, SDL_PRESSED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
494 else SDL_PrivateJoystickButton(joystick, (Uint8)6, SDL_RELEASED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
495 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
496 if (joystick->nbuttons>=8)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
497 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
498 if (stGameStatus.curdata.B.y > SYS_JoyData[index].buttoncalc[3]) SDL_PrivateJoystickButton(joystick, (Uint8)7, SDL_PRESSED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
499 else SDL_PrivateJoystickButton(joystick, (Uint8)7, SDL_RELEASED);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
500 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
501
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
502 /* joystick hat events */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
503 /* Not Supported under OS/2 */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
504 /* joystick ball events */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
505 /* Not Supported under OS/2 */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
506 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
507
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
508
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
509
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
510 /******************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
511 /* Function to close a joystick after use */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
512 /******************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
513 void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
514 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
515 if (joystick->hwdata != NULL)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
516 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
517 /* free system specific hardware data */
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
518 SDL_free(joystick->hwdata);
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
519 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
520 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
521
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
522
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
523
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
524 /********************************************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
525 /* Function to perform any system-specific joystick related cleanup */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
526 /********************************************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
527 void SDL_SYS_JoystickQuit(void)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
528 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
529 joyPortClose(&hJoyPort);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
530 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
531
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
532
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
533
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
534 /************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
535 /************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
536 /* OS/2 Implementations */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
537 /************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
538 /************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
539
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
540
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
541 /*****************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
542 /* Open Joystick Port, if not opened yet */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
543 /*****************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
544 APIRET joyPortOpen(HFILE * hGame)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
545 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
546 APIRET rc; /* Generic Return Code */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
547 ULONG ulAction; /* ? */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
548 ULONG ulVersion; /* Version of joystick driver */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
549 ULONG ulDataLen; /* Size of version data */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
550
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
551 /* Verifies if joyport is not already open... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
552 if (*hGame != NULL) return 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
553 /* Open GAME$ for read */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
554 rc = DosOpen((PSZ)GAMEPDDNAME, hGame, &ulAction, 0, FILE_READONLY,
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
555 FILE_OPEN, OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE, NULL);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
556 if (rc != 0)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
557 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
558 SDL_SetError("Could not open Joystick Port.");
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
559 return -1;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
560 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
561
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
562 /* Get Joystick Driver Version... must be 2.0 or higher */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
563 ulVersion = 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
564 ulDataLen = sizeof(ulVersion);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
565 rc = DosDevIOCtl( *hGame, IOCTL_CAT_USER, GAME_GET_VERSION,
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
566 NULL, 0, NULL, &ulVersion, ulDataLen, &ulDataLen);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
567 if (rc != 0)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
568 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
569 joyPortClose(hGame);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
570 SDL_SetError("Could not get Joystick Driver version.");
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
571 return -1;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
572 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
573 if (ulVersion < GAME_VERSION)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
574 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
575 joyPortClose(hGame);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
576 SDL_SetError("Driver too old. At least IBM driver version 2.0 required.");
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
577 return -1;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
578 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
579 return 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
580 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
581
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
582
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
583
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
584 /****************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
585 /* Close JoyPort, if opened */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
586 /****************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
587 void joyPortClose(HFILE * hGame)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
588 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
589 if (*hGame != NULL) DosClose(*hGame);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
590 *hGame = NULL;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
591 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
592
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
593
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
594
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
595 /***************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
596 /* Get SDL Joystick EnvVar */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
597 /***************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
598 int joyGetEnv(struct _joycfg * joydata)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
599 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
600 char *joyenv; /* Pointer to tested character */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
601 char tempnumber[5]; /* Temporary place to put numeric texts */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
602
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
603 joyenv = SDL_getenv("SDL_OS2_JOYSTICK");
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
604 if (joyenv == NULL) return 0;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
605 /* Joystick Environment is defined! */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
606 while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
607 /* If the string name starts with '... get if fully */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
608 if (*joyenv=='\'') joyenv+=joyGetData(++joyenv,joydata->name,'\'',sizeof(joydata->name));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
609 /* If not, get it until the next space */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
610 else if (*joyenv=='\"') joyenv+=joyGetData(++joyenv,joydata->name,'\"',sizeof(joydata->name));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
611 else joyenv+=joyGetData(joyenv,joydata->name,' ',sizeof(joydata->name));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
612 /* Now get the number of axes */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
613 while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
614 joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
615 joydata->axes = atoi(tempnumber);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
616 /* Now get the number of buttons */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
617 while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
618 joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
619 joydata->buttons = atoi(tempnumber);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
620 /* Now get the number of hats */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
621 while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
622 joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
623 joydata->hats = atoi(tempnumber);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
624 /* Now get the number of balls */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
625 while (*joyenv==' ' && *joyenv!=0) joyenv++; /* jump spaces... */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
626 joyenv+=joyGetData(joyenv,tempnumber,' ',sizeof(tempnumber));
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
627 joydata->balls = atoi(tempnumber);
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
628 return 1;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
629 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
630
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
631
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
632
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
633 /************************************************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
634 /* Get a text from in the string starting in joyenv until it finds */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
635 /* the stopchar or maxchars is reached. The result is placed in name. */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
636 /************************************************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
637 int joyGetData(char *joyenv, char *name, char stopchar, size_t maxchars)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
638 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
639 char *nameptr; /* Pointer to the selected character */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
640 int chcnt=0; /* Count how many characters where copied */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
641
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
642 nameptr=name;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
643 while (*joyenv!=stopchar && *joyenv!=0)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
644 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
645 if (nameptr<(name+(maxchars-1)))
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
646 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
647 *nameptr = *joyenv; /* Only copy if smaller than maximum */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
648 nameptr++;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
649 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
650 chcnt++;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
651 joyenv++;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
652 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
653 if (*joyenv==stopchar)
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
654 {
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
655 joyenv++; /* Jump stopchar */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
656 chcnt++;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
657 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
658 *nameptr = 0; /* Mark last byte */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
659 return chcnt;
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
660 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
661
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
662