annotate src/joystick/os2/SDL_sysjoystick.c @ 1668:4da1ee79c9af SDL-1.3

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author Sam Lantinga <slouken@libsdl.org>
date Mon, 29 May 2006 04:04:35 +0000
parents 782fd950bd46
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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 #include "SDL_config.h"
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23
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24 #ifdef SDL_JOYSTICK_OS2
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25
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26 /* OS/2 Joystick driver, contributed by Daniel Caetano */
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27
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28 #include <mem.h>
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29
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30 #define INCL_DOSDEVICES
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31 #define INCL_DOSDEVIOCTL
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32 #define INCL_DOSMEMMGR
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33 #include <os2.h>
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34 #include "joyos2.h"
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35
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36 #include "SDL_joystick.h"
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37 #include "SDL_events.h"
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38 #include "../SDL_sysjoystick.h"
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39 #include "../SDL_joystick_c.h"
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40
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41 HFILE hJoyPort = NULL; /* Joystick GAME$ Port Address */
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42 #define MAX_JOYSTICKS 2 /* Maximum of two joysticks */
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43 #define MAX_AXES 4 /* each joystick can have up to 4 axes */
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44 #define MAX_BUTTONS 8 /* 8 buttons */
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45 #define MAX_HATS 0 /* 0 hats - OS/2 doesn't support it */
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46 #define MAX_BALLS 0 /* and 0 balls - OS/2 doesn't support it */
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47 #define AXIS_MIN -32768 /* minimum value for axes coordinate */
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48 #define AXIS_MAX 32767 /* maximum value for axes coordinate */
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49 #define MAX_JOYNAME 128 /* Joystick name may have 128 characters */
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50 /* limit axes to 256 possible positions to filter out noise */
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51 #define JOY_AXIS_THRESHOLD (((AXIS_MAX)-(AXIS_MIN))/256)
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52 /* Calc Button Flag for buttons A to D */
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53 #define JOY_BUTTON_FLAG(n) (1<<n)
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54
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55 /* Joystick data... hold information about detected devices */
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56 typedef struct SYS_JoyData_s
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57 {
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58 Sint8 id; // Device ID
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59 char szDeviceName[MAX_JOYNAME]; // Device Name
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60 char axes; // Number of axes
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61 char buttons; // Number of buttons
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62 char hats; // Number of buttons
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63 char balls; // Number of buttons
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64 int axes_min[MAX_AXES]; // minimum callibration value for axes
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65 int axes_med[MAX_AXES]; // medium callibration value for axes
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66 int axes_max[MAX_AXES]; // maximum callibration value for axes
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67 int buttoncalc[4]; // Used for buttons 5, 6, 7 and 8.
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68 } SYS_JoyData_t, *SYS_JoyData_p;
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69
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70 SYS_JoyData_t SYS_JoyData[MAX_JOYSTICKS];
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71
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72
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73 /* Structure used to convert data from OS/2 driver format to SDL format */
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74 struct joystick_hwdata
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75 {
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76 Sint8 id;
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77 struct _transaxes
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78 {
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79 int offset; /* Center Offset */
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80 float scale1; /* Center to left/up Scale */
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81 float scale2; /* Center to right/down Scale */
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82 } transaxes[MAX_AXES];
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83 };
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84
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85 /* Structure used to get values from Joystick Environment Variable */
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86 struct _joycfg
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87 {
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88 char name[MAX_JOYNAME];
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89 unsigned int axes;
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90 unsigned int buttons;
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91 unsigned int hats;
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92 unsigned int balls;
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93 };
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94
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95 /* OS/2 Implementation Function Prototypes */
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96 APIRET joyPortOpen(HFILE * hGame);
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97 void joyPortClose(HFILE * hGame);
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98 int joyGetData(char *joyenv, char *name, char stopchar, size_t maxchars);
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99 int joyGetEnv(struct _joycfg *joydata);
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100
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101
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102
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103 /************************************************************************/
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104 /* Function to scan the system for joysticks. */
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105 /* This function should set SDL_numjoysticks to the number of available */
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106 /* joysticks. Joystick 0 should be the system default joystick. */
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107 /* It should return 0, or -1 on an unrecoverable fatal error. */
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108 /************************************************************************/
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109 int
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110 SDL_SYS_JoystickInit(void)
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111 {
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112 APIRET rc; /* Generic OS/2 return code */
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113 GAME_PORT_STRUCT stJoyStatus; /* Joystick Status Structure */
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114 GAME_PARM_STRUCT stGameParms; /* Joystick Parameter Structure */
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115 GAME_CALIB_STRUCT stGameCalib; /* Calibration Struct */
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116 ULONG ulDataLen; /* Size of data */
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117 ULONG ulLastTick; /* Tick Counter for timing operations */
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118 Uint8 maxdevs; /* Maximum number of devices */
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119 Uint8 numdevs; /* Number of present devices */
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120 Uint8 maxbut; /* Maximum number of buttons... */
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121 Uint8 i; /* Temporary Count Vars */
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122 Uint8 ucNewJoystickMask; /* Mask for Joystick Detection */
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123 struct _joycfg joycfg; /* Joy Configuration from envvar */
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124
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125
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126 /* Get Max Number of Devices */
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127 rc = joyPortOpen(&hJoyPort); /* Open GAME$ port */
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128 if (rc != 0)
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129 return 0; /* Cannot open... report no joystick */
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130 ulDataLen = sizeof(stGameParms);
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131 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_PARMS, NULL, 0, NULL, &stGameParms, ulDataLen, &ulDataLen); /* Ask device info */
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132 if (rc != 0) {
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133 joyPortClose(&hJoyPort);
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134 SDL_SetError("Could not read joystick port.");
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135 return -1;
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136 }
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137 if (stGameParms.useA != 0)
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138 maxdevs++;
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139 if (stGameParms.useB != 0)
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140 maxdevs++;
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141 if (maxdevs > MAX_JOYSTICKS)
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142 maxdevs = MAX_JOYSTICKS;
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143
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144 /* Defines min/max axes values (callibration) */
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145 ulDataLen = sizeof(stGameCalib);
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146 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_CALIB,
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147 NULL, 0, NULL, &stGameCalib, ulDataLen, &ulDataLen);
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148 if (rc != 0) {
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149 joyPortClose(&hJoyPort);
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150 SDL_SetError("Could not read callibration data.");
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151 return -1;
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152 }
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153
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154 /* Determine how many joysticks are active */
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155 numdevs = 0; /* Points no device */
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156 ucNewJoystickMask = 0x0F; /* read all 4 joystick axis */
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157 ulDataLen = sizeof(ucNewJoystickMask);
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158 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_RESET,
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159 &ucNewJoystickMask, ulDataLen, &ulDataLen, NULL, 0,
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160 NULL);
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161 if (rc == 0) {
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162 ulDataLen = sizeof(stJoyStatus);
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163 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET,
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164 NULL, 0, NULL, &stJoyStatus, ulDataLen, &ulDataLen);
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165 if (rc != 0) {
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166 joyPortClose(&hJoyPort);
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167 SDL_SetError("Could not call joystick port.");
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168 return -1;
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169 }
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170 ulLastTick = stJoyStatus.ulJs_Ticks;
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171 while (stJoyStatus.ulJs_Ticks == ulLastTick) {
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172 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_PORT_GET,
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173 NULL, 0, NULL, &stJoyStatus, ulDataLen,
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174 &ulDataLen);
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175 }
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176 if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0)
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177 numdevs++;
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178 if (((stJoyStatus.ucJs_JoyStickMask >> 2) & 0x03) > 0)
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179 numdevs++;
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180 }
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181
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182 if (numdevs > maxdevs)
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183 numdevs = maxdevs;
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184
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185 /* If *any* joystick was detected... Let's configure SDL for them */
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186 if (numdevs > 0) {
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187 /* Verify if it is a "user defined" joystick */
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188 if (joyGetEnv(&joycfg)) {
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189 GAME_3POS_STRUCT *axis[4];
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190 axis[0] = &stGameCalib.Ax;
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191 axis[1] = &stGameCalib.Ay;
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192 axis[2] = &stGameCalib.Bx;
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193 axis[3] = &stGameCalib.By;
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194 /* Say it has one device only (user defined is always one device only) */
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195 numdevs = 1;
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196 /* Define Device 0 as... */
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197 SYS_JoyData[0].id = 0;
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198 /* Define Number of Axes... up to 4 */
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199 if (joycfg.axes > MAX_AXES)
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200 joycfg.axes = MAX_AXES;
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201 SYS_JoyData[0].axes = joycfg.axes;
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202 /* Define number of buttons... 8 if 2 axes, 6 if 3 axes and 4 if 4 axes */
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203 maxbut = MAX_BUTTONS;
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204 if (joycfg.axes > 2)
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205 maxbut -= ((joycfg.axes - 2) << 1); /* MAX_BUTTONS - 2*(axes-2) */
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206 if (joycfg.buttons > maxbut)
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207 joycfg.buttons = maxbut;
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208 SYS_JoyData[0].buttons = joycfg.buttons;
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209 /* Define number of hats */
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210 if (joycfg.hats > MAX_HATS)
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211 joycfg.hats = MAX_HATS;
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212 SYS_JoyData[0].hats = joycfg.hats;
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213 /* Define number of balls */
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214 if (joycfg.balls > MAX_BALLS)
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215 joycfg.balls = MAX_BALLS;
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216 SYS_JoyData[0].balls = joycfg.balls;
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217 /* Initialize Axes Callibration Values */
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218 for (i = 0; i < joycfg.axes; i++) {
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219 SYS_JoyData[0].axes_min[i] = axis[i]->lower;
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220 SYS_JoyData[0].axes_med[i] = axis[i]->centre;
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221 SYS_JoyData[0].axes_max[i] = axis[i]->upper;
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222 }
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223 /* Initialize Buttons 5 to 8 structures */
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224 if (joycfg.buttons >= 5)
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225 SYS_JoyData[0].buttoncalc[0] =
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226 ((axis[2]->lower + axis[3]->centre) >> 1);
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227 if (joycfg.buttons >= 6)
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228 SYS_JoyData[0].buttoncalc[1] =
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229 ((axis[3]->lower + axis[3]->centre) >> 1);
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230 if (joycfg.buttons >= 7)
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231 SYS_JoyData[0].buttoncalc[2] =
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232 ((axis[2]->upper + axis[3]->centre) >> 1);
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233 if (joycfg.buttons >= 8)
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234 SYS_JoyData[0].buttoncalc[3] =
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235 ((axis[3]->upper + axis[3]->centre) >> 1);
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236 /* Intialize Joystick Name */
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237 SDL_strlcpy(SYS_JoyData[0].szDeviceName, joycfg.name,
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238 SDL_arraysize(SYS_JoyData[0].szDeviceName));
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239 }
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240 /* Default Init ... autoconfig */
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241 else {
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242 /* if two devices were detected... configure as Joy1 4 axis and Joy2 2 axis */
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243 if (numdevs == 2) {
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244 /* Define Device 0 as 4 axes, 4 buttons */
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245 SYS_JoyData[0].id = 0;
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246 SYS_JoyData[0].axes = 4;
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247 SYS_JoyData[0].buttons = 4;
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248 SYS_JoyData[0].hats = 0;
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249 SYS_JoyData[0].balls = 0;
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250 SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower;
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251 SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre;
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252 SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper;
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253 SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower;
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254 SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre;
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255 SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper;
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256 SYS_JoyData[0].axes_min[2] = stGameCalib.Bx.lower;
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257 SYS_JoyData[0].axes_med[2] = stGameCalib.Bx.centre;
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258 SYS_JoyData[0].axes_max[2] = stGameCalib.Bx.upper;
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259 SYS_JoyData[0].axes_min[3] = stGameCalib.By.lower;
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260 SYS_JoyData[0].axes_med[3] = stGameCalib.By.centre;
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261 SYS_JoyData[0].axes_max[3] = stGameCalib.By.upper;
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262 /* Define Device 1 as 2 axes, 2 buttons */
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263 SYS_JoyData[1].id = 1;
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264 SYS_JoyData[1].axes = 2;
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265 SYS_JoyData[1].buttons = 2;
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266 SYS_JoyData[1].hats = 0;
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267 SYS_JoyData[1].balls = 0;
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268 SYS_JoyData[1].axes_min[0] = stGameCalib.Bx.lower;
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269 SYS_JoyData[1].axes_med[0] = stGameCalib.Bx.centre;
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270 SYS_JoyData[1].axes_max[0] = stGameCalib.Bx.upper;
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271 SYS_JoyData[1].axes_min[1] = stGameCalib.By.lower;
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272 SYS_JoyData[1].axes_med[1] = stGameCalib.By.centre;
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273 SYS_JoyData[1].axes_max[1] = stGameCalib.By.upper;
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274 }
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275 /* One joystick only? */
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276 else {
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277 /* If it is joystick A... */
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278 if ((stJoyStatus.ucJs_JoyStickMask & 0x03) > 0) {
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279 /* Define Device 0 as 2 axes, 4 buttons */
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280 SYS_JoyData[0].id = 0;
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281 SYS_JoyData[0].axes = 2;
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282 SYS_JoyData[0].buttons = 4;
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283 SYS_JoyData[0].hats = 0;
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284 SYS_JoyData[0].balls = 0;
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285 SYS_JoyData[0].axes_min[0] = stGameCalib.Ax.lower;
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286 SYS_JoyData[0].axes_med[0] = stGameCalib.Ax.centre;
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287 SYS_JoyData[0].axes_max[0] = stGameCalib.Ax.upper;
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288 SYS_JoyData[0].axes_min[1] = stGameCalib.Ay.lower;
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289 SYS_JoyData[0].axes_med[1] = stGameCalib.Ay.centre;
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290 SYS_JoyData[0].axes_max[1] = stGameCalib.Ay.upper;
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291 }
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292 /* If not, it is joystick B */
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293 else {
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294 /* Define Device 1 as 2 axes, 2 buttons */
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295 SYS_JoyData[0].id = 1;
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296 SYS_JoyData[0].axes = 2;
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297 SYS_JoyData[0].buttons = 2;
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298 SYS_JoyData[0].hats = 0;
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299 SYS_JoyData[0].balls = 0;
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300 SYS_JoyData[0].axes_min[0] = stGameCalib.Bx.lower;
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301 SYS_JoyData[0].axes_med[0] = stGameCalib.Bx.centre;
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302 SYS_JoyData[0].axes_max[0] = stGameCalib.Bx.upper;
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303 SYS_JoyData[0].axes_min[1] = stGameCalib.By.lower;
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304 SYS_JoyData[0].axes_med[1] = stGameCalib.By.centre;
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305 SYS_JoyData[0].axes_max[1] = stGameCalib.By.upper;
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306 }
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307 }
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308 /* Hack to define Joystick Port Names */
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309 if (numdevs > maxdevs)
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310 numdevs = maxdevs;
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311 for (i = 0; i < numdevs; i++)
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312 SDL_snprintf(SYS_JoyData[i].szDeviceName,
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313 SDL_arraysize(SYS_JoyData[i].szDeviceName),
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314 "Default Joystick %c", 'A' + SYS_JoyData[i].id);
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315
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316 }
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317 }
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318 /* Return the number of devices found */
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319 return (numdevs);
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320 }
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321
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322
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323 /***********************************************************/
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324 /* Function to get the device-dependent name of a joystick */
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325 /***********************************************************/
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326 const char *
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327 SDL_SYS_JoystickName(int index)
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328 {
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329 /* No need to verify if device exists, already done in upper layer */
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330 return (SYS_JoyData[index].szDeviceName);
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331 }
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332
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333
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334
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335 /******************************************************************************/
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336 /* Function to open a joystick for use. */
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337 /* The joystick to open is specified by the index field of the joystick. */
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338 /* This should fill the nbuttons and naxes fields of the joystick structure. */
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339 /* It returns 0, or -1 if there is an error. */
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340 /******************************************************************************/
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341 int
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342 SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
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343 {
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344 int index; /* Index shortcut for index in joystick structure */
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345 int i; /* Generic Counter */
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346
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347 /* allocate memory for system specific hardware data */
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348 joystick->hwdata =
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349 (struct joystick_hwdata *) SDL_malloc(sizeof(*joystick->hwdata));
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350 if (joystick->hwdata == NULL) {
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351 SDL_OutOfMemory();
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352 return (-1);
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353 }
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354 /* Reset Hardware Data */
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355 SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata));
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356
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357 /* ShortCut Pointer */
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358 index = joystick->index;
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359 /* Define offsets and scales for all axes */
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360 joystick->hwdata->id = SYS_JoyData[index].id;
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361 for (i = 0; i < MAX_AXES; ++i) {
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362 if ((i < 2) || i < SYS_JoyData[index].axes) {
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363 joystick->hwdata->transaxes[i].offset =
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364 ((AXIS_MAX + AXIS_MIN) >> 1) - SYS_JoyData[index].axes_med[i];
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365 //joystick->hwdata->transaxes[i].scale = (float)((AXIS_MAX - AXIS_MIN)/(SYS_JoyData[index].axes_max[i]-SYS_JoyData[index].axes_min[i]));
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366 joystick->hwdata->transaxes[i].scale1 =
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367 (float) abs((AXIS_MIN / SYS_JoyData[index].axes_min[i]));
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368 joystick->hwdata->transaxes[i].scale2 =
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369 (float) abs((AXIS_MAX / SYS_JoyData[index].axes_max[i]));
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370 } else {
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371 joystick->hwdata->transaxes[i].offset = 0;
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372 //joystick->hwdata->transaxes[i].scale = 1.0; /* Just in case */
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373 joystick->hwdata->transaxes[i].scale1 = 1.0; /* Just in case */
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374 joystick->hwdata->transaxes[i].scale2 = 1.0; /* Just in case */
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375 }
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376 }
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377
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378 /* fill nbuttons, naxes, and nhats fields */
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379 joystick->nbuttons = SYS_JoyData[index].buttons;
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380 joystick->naxes = SYS_JoyData[index].axes;
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381 /* joystick->nhats = SYS_JoyData[index].hats; */
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382 joystick->nhats = 0; /* No support for hats at this time */
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383 /* joystick->nballs = SYS_JoyData[index].balls; */
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384 joystick->nballs = 0; /* No support for balls at this time */
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385 return 0;
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386 }
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387
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388
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389
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390 /***************************************************************************/
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391 /* Function to update the state of a joystick - called as a device poll. */
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392 /* This function shouldn't update the joystick structure directly, */
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393 /* but instead should call SDL_PrivateJoystick*() to deliver events */
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394 /* and update joystick device state. */
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395 /***************************************************************************/
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396 void
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397 SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
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398 {
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399 APIRET rc; /* Generic OS/2 return code */
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400 int index; /* index shortcurt to joystick index */
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401 int i; /* Generic counter */
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402 int normbut; /* Number of buttons reported by joystick */
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403 int corr; /* Correction for button names */
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404 Sint16 value, change; /* Values used to update axis values */
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405 struct _transaxes *transaxes; /* Shortcut for Correction structure */
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406 Uint32 pos[MAX_AXES]; /* Vector to inform the Axis status */
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407 ULONG ulDataLen; /* Size of data */
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408 GAME_STATUS_STRUCT stGameStatus; /* Joystick Status Structure */
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409
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410 ulDataLen = sizeof(stGameStatus);
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411 rc = DosDevIOCtl(hJoyPort, IOCTL_CAT_USER, GAME_GET_STATUS,
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412 NULL, 0, NULL, &stGameStatus, ulDataLen, &ulDataLen);
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413 if (rc != 0) {
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414 SDL_SetError("Could not read joystick status.");
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415 return; /* Could not read data */
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416 }
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417
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418 /* Shortcut pointer */
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419 index = joystick->index;
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420 /* joystick motion events */
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421
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422 if (SYS_JoyData[index].id == 0) {
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423 pos[0] = stGameStatus.curdata.A.x;
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424 pos[1] = stGameStatus.curdata.A.y;
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425 if (SYS_JoyData[index].axes >= 3)
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426 pos[2] = stGameStatus.curdata.B.x;
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427 else
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428 pos[2] = 0;
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429 if (SYS_JoyData[index].axes >= 4)
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430 pos[3] = stGameStatus.curdata.B.y;
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431 else
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432 pos[3] = 0;
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433 pos[4] = 0; /* OS/2 basic drivers do not support more than 4 axes joysticks */
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434 pos[5] = 0;
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435 } else if (SYS_JoyData[index].id == 1) {
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436 pos[0] = stGameStatus.curdata.B.x;
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437 pos[1] = stGameStatus.curdata.B.y;
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438 pos[2] = 0;
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439 pos[3] = 0;
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440 pos[4] = 0;
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441 pos[5] = 0;
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442 }
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443
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444 /* Corrects the movements using the callibration */
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445 transaxes = joystick->hwdata->transaxes;
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446 for (i = 0; i < joystick->naxes; i++) {
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447 value = pos[i] + transaxes[i].offset;
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448 if (value < 0) {
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diff changeset
449 value *= transaxes[i].scale1;
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diff changeset
450 if (value > 0)
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diff changeset
451 value = AXIS_MIN;
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452 } else {
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diff changeset
453 value *= transaxes[i].scale2;
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diff changeset
454 if (value < 0)
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455 value = AXIS_MAX;
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diff changeset
456 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
457 change = (value - joystick->axes[i]);
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diff changeset
458 if ((change < -JOY_AXIS_THRESHOLD) || (change > JOY_AXIS_THRESHOLD)) {
1668
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diff changeset
459 SDL_PrivateJoystickAxis(joystick, (Uint8) i, (Sint16) value);
1662
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460 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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461 }
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462
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diff changeset
463 /* joystick button A to D events */
1662
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diff changeset
464 if (SYS_JoyData[index].id == 1)
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diff changeset
465 corr = 2;
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diff changeset
466 else
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diff changeset
467 corr = 0;
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diff changeset
468 normbut = 4; /* Number of normal buttons */
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diff changeset
469 if (joystick->nbuttons < normbut)
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470 normbut = joystick->nbuttons;
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471 for (i = corr; (i - corr) < normbut; ++i) {
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diff changeset
472 /*
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diff changeset
473 Button A: 1110 0000
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diff changeset
474 Button B: 1101 0000
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diff changeset
475 Button C: 1011 0000
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diff changeset
476 Button D: 0111 0000
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diff changeset
477 */
1668
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diff changeset
478 if ((~stGameStatus.curdata.butMask) >> 4 & JOY_BUTTON_FLAG(i)) {
1662
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diff changeset
479 if (!joystick->buttons[i - corr]) {
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480 SDL_PrivateJoystickButton(joystick, (Uint8) (i - corr),
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diff changeset
481 SDL_PRESSED);
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482 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
483 } else {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
484 if (joystick->buttons[i - corr]) {
1668
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diff changeset
485 SDL_PrivateJoystickButton(joystick, (Uint8) (i - corr),
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parents: 1662
diff changeset
486 SDL_RELEASED);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
487 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
488 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
489 }
1190
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diff changeset
490
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diff changeset
491 /* Joystick button E to H buttons */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
492 /*
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
493 Button E: Axis 2 X Left
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
494 Button F: Axis 2 Y Up
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
495 Button G: Axis 2 X Right
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
496 Button H: Axis 2 Y Down
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
497 */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
498 if (joystick->nbuttons >= 5) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
499 if (stGameStatus.curdata.B.x < SYS_JoyData[index].buttoncalc[0])
1668
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diff changeset
500 SDL_PrivateJoystickButton(joystick, (Uint8) 4, SDL_PRESSED);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
501 else
1668
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diff changeset
502 SDL_PrivateJoystickButton(joystick, (Uint8) 4, SDL_RELEASED);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
503 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
504 if (joystick->nbuttons >= 6) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
505 if (stGameStatus.curdata.B.y < SYS_JoyData[index].buttoncalc[1])
1668
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diff changeset
506 SDL_PrivateJoystickButton(joystick, (Uint8) 5, SDL_PRESSED);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
507 else
1668
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
508 SDL_PrivateJoystickButton(joystick, (Uint8) 5, SDL_RELEASED);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
509 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
510 if (joystick->nbuttons >= 7) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
511 if (stGameStatus.curdata.B.x > SYS_JoyData[index].buttoncalc[2])
1668
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diff changeset
512 SDL_PrivateJoystickButton(joystick, (Uint8) 6, SDL_PRESSED);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
513 else
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
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diff changeset
514 SDL_PrivateJoystickButton(joystick, (Uint8) 6, SDL_RELEASED);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
515 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
516 if (joystick->nbuttons >= 8) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
517 if (stGameStatus.curdata.B.y > SYS_JoyData[index].buttoncalc[3])
1668
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diff changeset
518 SDL_PrivateJoystickButton(joystick, (Uint8) 7, SDL_PRESSED);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
519 else
1668
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Sam Lantinga <slouken@libsdl.org>
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diff changeset
520 SDL_PrivateJoystickButton(joystick, (Uint8) 7, SDL_RELEASED);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
521 }
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Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
522
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
523 /* joystick hat events */
173c063d4f55 OS/2 port!
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parents:
diff changeset
524 /* Not Supported under OS/2 */
173c063d4f55 OS/2 port!
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parents:
diff changeset
525 /* joystick ball events */
173c063d4f55 OS/2 port!
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parents:
diff changeset
526 /* Not Supported under OS/2 */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
527 }
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
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!
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parents:
diff changeset
532 /* Function to close a joystick after use */
173c063d4f55 OS/2 port!
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parents:
diff changeset
533 /******************************************/
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
534 void
1668
4da1ee79c9af more tweaking indent options
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diff changeset
535 SDL_SYS_JoystickClose(SDL_Joystick * joystick)
1190
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parents:
diff changeset
536 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
537 if (joystick->hwdata != NULL) {
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
538 /* free system specific hardware data */
1668
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Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
539 SDL_free(joystick->hwdata);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
540 }
1190
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parents:
diff changeset
541 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
542
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
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
545 /********************************************************************/
173c063d4f55 OS/2 port!
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parents:
diff changeset
546 /* Function to perform any system-specific joystick related cleanup */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
547 /********************************************************************/
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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parents: 1635
diff changeset
548 void
1668
4da1ee79c9af more tweaking indent options
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diff changeset
549 SDL_SYS_JoystickQuit(void)
1190
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parents:
diff changeset
550 {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
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diff changeset
551 joyPortClose(&hJoyPort);
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
552 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
553
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
554
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
555
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
556 /************************/
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 /* OS/2 Implementations */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
559 /************************/
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
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
563 /*****************************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
564 /* Open Joystick Port, if not opened yet */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
565 /*****************************************/
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
566 APIRET
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
567 joyPortOpen(HFILE * hGame)
1190
173c063d4f55 OS/2 port!
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parents:
diff changeset
568 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
569 APIRET rc; /* Generic Return Code */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
570 ULONG ulAction; /* ? */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
571 ULONG ulVersion; /* Version of joystick driver */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
572 ULONG ulDataLen; /* Size of version data */
1190
173c063d4f55 OS/2 port!
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parents:
diff changeset
573
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
574 /* Verifies if joyport is not already open... */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
575 if (*hGame != NULL)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
576 return 0;
1190
173c063d4f55 OS/2 port!
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parents:
diff changeset
577 /* Open GAME$ for read */
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
578 rc = DosOpen((PSZ) GAMEPDDNAME, hGame, &ulAction, 0, FILE_READONLY,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
579 FILE_OPEN, OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE, NULL);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
580 if (rc != 0) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
581 SDL_SetError("Could not open Joystick Port.");
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
582 return -1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
583 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
584
1190
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parents:
diff changeset
585 /* Get Joystick Driver Version... must be 2.0 or higher */
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
586 ulVersion = 0;
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
587 ulDataLen = sizeof(ulVersion);
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
588 rc = DosDevIOCtl(*hGame, IOCTL_CAT_USER, GAME_GET_VERSION,
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
589 NULL, 0, NULL, &ulVersion, ulDataLen, &ulDataLen);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
590 if (rc != 0) {
1668
4da1ee79c9af more tweaking indent options
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parents: 1662
diff changeset
591 joyPortClose(hGame);
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
592 SDL_SetError("Could not get Joystick Driver version.");
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
593 return -1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
594 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
595 if (ulVersion < GAME_VERSION) {
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
596 joyPortClose(hGame);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
597 SDL_SetError
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
598 ("Driver too old. At least IBM driver version 2.0 required.");
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
599 return -1;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
600 }
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
601 return 0;
1190
173c063d4f55 OS/2 port!
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parents:
diff changeset
602 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
603
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
604
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
605
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
606 /****************************/
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
607 /* Close JoyPort, if opened */
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
608 /****************************/
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
609 void
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
610 joyPortClose(HFILE * hGame)
1190
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parents:
diff changeset
611 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
612 if (*hGame != NULL)
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
613 DosClose(*hGame);
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1635
diff changeset
614 *hGame = NULL;
1190
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parents:
diff changeset
615 }
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
616
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
617
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
618
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
619 /***************************/
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620 /* Get SDL Joystick EnvVar */
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621 /***************************/
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622 int
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623 joyGetEnv(struct _joycfg *joydata)
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624 {
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625 char *joyenv; /* Pointer to tested character */
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626 char tempnumber[5]; /* Temporary place to put numeric texts */
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627
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628 joyenv = SDL_getenv("SDL_OS2_JOYSTICK");
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629 if (joyenv == NULL)
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630 return 0;
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631 /* Joystick Environment is defined! */
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632 while (*joyenv == ' ' && *joyenv != 0)
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633 joyenv++; /* jump spaces... */
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634 /* If the string name starts with '... get if fully */
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635 if (*joyenv == '\'')
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636 joyenv +=
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637 joyGetData(++joyenv, joydata->name, '\'', sizeof(joydata->name));
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638 /* If not, get it until the next space */
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639 else if (*joyenv == '\"')
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640 joyenv +=
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641 joyGetData(++joyenv, joydata->name, '\"', sizeof(joydata->name));
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642 else
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643 joyenv +=
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644 joyGetData(joyenv, joydata->name, ' ', sizeof(joydata->name));
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645 /* Now get the number of axes */
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646 while (*joyenv == ' ' && *joyenv != 0)
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647 joyenv++; /* jump spaces... */
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648 joyenv += joyGetData(joyenv, tempnumber, ' ', sizeof(tempnumber));
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649 joydata->axes = atoi(tempnumber);
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650 /* Now get the number of buttons */
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651 while (*joyenv == ' ' && *joyenv != 0)
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652 joyenv++; /* jump spaces... */
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653 joyenv += joyGetData(joyenv, tempnumber, ' ', sizeof(tempnumber));
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654 joydata->buttons = atoi(tempnumber);
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655 /* Now get the number of hats */
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656 while (*joyenv == ' ' && *joyenv != 0)
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657 joyenv++; /* jump spaces... */
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658 joyenv += joyGetData(joyenv, tempnumber, ' ', sizeof(tempnumber));
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659 joydata->hats = atoi(tempnumber);
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660 /* Now get the number of balls */
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661 while (*joyenv == ' ' && *joyenv != 0)
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662 joyenv++; /* jump spaces... */
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663 joyenv += joyGetData(joyenv, tempnumber, ' ', sizeof(tempnumber));
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664 joydata->balls = atoi(tempnumber);
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665 return 1;
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666 }
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667
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668
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669
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670 /************************************************************************/
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671 /* Get a text from in the string starting in joyenv until it finds */
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672 /* the stopchar or maxchars is reached. The result is placed in name. */
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673 /************************************************************************/
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674 int
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675 joyGetData(char *joyenv, char *name, char stopchar, size_t maxchars)
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676 {
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677 char *nameptr; /* Pointer to the selected character */
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678 int chcnt = 0; /* Count how many characters where copied */
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679
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680 nameptr = name;
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681 while (*joyenv != stopchar && *joyenv != 0) {
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diff changeset
682 if (nameptr < (name + (maxchars - 1))) {
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diff changeset
683 *nameptr = *joyenv; /* Only copy if smaller than maximum */
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684 nameptr++;
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685 }
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686 chcnt++;
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diff changeset
687 joyenv++;
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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diff changeset
688 }
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diff changeset
689 if (*joyenv == stopchar) {
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690 joyenv++; /* Jump stopchar */
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691 chcnt++;
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diff changeset
692 }
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diff changeset
693 *nameptr = 0; /* Mark last byte */
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694 return chcnt;
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695 }
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696
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697 #endif /* SDL_JOYSTICK_OS2 */
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698 /* vi: set ts=4 sw=4 expandtab: */