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annotate src/joystick/amigaos/SDL_sysjoystick.c @ 1502:d403a39389da

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author Sam Lantinga <slouken@libsdl.org>
date Mon, 13 Mar 2006 01:16:16 +0000
parents d910939febfa
children 92947e3a18db
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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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 /* This is the system specific header for the SDL joystick API */
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25
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26 #include <libraries/lowlevel.h>
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27 #if defined(__SASC) || defined(STORMC4_WOS)
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28 #include <proto/exec.h>
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29 #include <proto/lowlevel.h>
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30 #include <proto/graphics.h>
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31 #else
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32 #include <inline/exec.h>
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33 #include <inline/lowlevel.h>
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34 #include <inline/graphics.h>
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35 #endif
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36 #include "mydebug.h"
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37
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38 extern struct ExecBase *SysBase;
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39 extern struct GfxBase *GfxBase;
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40
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41 #include "SDL_joystick.h"
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42 #include "../SDL_sysjoystick.h"
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43 #include "../SDL_joystick_c.h"
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44
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45 /* Function to scan the system for joysticks.
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46 * This function should set SDL_numjoysticks to the number of available
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47 * joysticks. Joystick 0 should be the system default joystick.
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48 * It should return 0, or -1 on an unrecoverable fatal error.
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49 */
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50
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51
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52 /* Amiga specific datas */
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53 struct Library *LowLevelBase=NULL;
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54
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55 ULONG joybut[]=
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56 {
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57 JPF_BUTTON_RED,
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58 JPF_BUTTON_BLUE,
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59 JPF_BUTTON_PLAY,
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60 JPF_BUTTON_YELLOW,
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61 JPF_BUTTON_GREEN,
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62 JPF_BUTTON_FORWARD,
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63 JPF_BUTTON_REVERSE,
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64 };
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65
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66 struct joystick_hwdata
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67 {
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68 ULONG joystate;
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69 };
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70
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71 int SDL_SYS_JoystickInit(void)
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72 {
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73 if(!LowLevelBase)
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74 {
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75 if(LowLevelBase=OpenLibrary("lowlevel.library",37))
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76 return 2;
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77 }
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78 else
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79 return 2;
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80
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81 D(bug("%ld joysticks available.\n",SDL_numjoysticks));
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82
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83 return 0;
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84 }
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85
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86 /* Function to get the device-dependent name of a joystick */
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87 const char *SDL_SYS_JoystickName(int index)
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88 {
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89 if(index<2&&LowLevelBase)
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90 {
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91 switch(index)
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92 {
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93 case 0:
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94 return "Port 1 Amiga Joystick/Joypad";
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95 case 1:
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96 return "Port 2 Amiga Joystick/Joypad";
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97 }
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98 }
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99
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100 SDL_SetError("No joystick available with that index");
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101 return(NULL);
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102 }
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103
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104 /* Function to open a joystick for use.
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105 The joystick to open is specified by the index field of the joystick.
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106 This should fill the nbuttons and naxes fields of the joystick structure.
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107 It returns 0, or -1 if there is an error.
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108 */
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109
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110 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick)
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111 {
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112 ULONG temp,i;
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113 D(bug("Opening joystick %ld\n",joystick->index));
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114
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115 if(!(joystick->hwdata=SDL_malloc(sizeof(struct joystick_hwdata))))
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116 return -1;
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117
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118 /* This loop is to check if the controller is a joypad */
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119
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120 for(i=0;i<20;i++)
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121 {
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122 temp=ReadJoyPort(joystick->index^1); // fix to invert amiga joyports
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123 WaitTOF();
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124 }
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125
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126 if((temp&JP_TYPE_MASK)==JP_TYPE_GAMECTLR)
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127 joystick->nbuttons=7;
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128 else
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129 joystick->nbuttons=3;
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130
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131 joystick->nhats=0;
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132 joystick->nballs=0;
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Sam Lantinga <slouken@lokigames.com>
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133 joystick->naxes=2;
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134 joystick->hwdata->joystate=0L;
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135
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136 return 0;
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Sam Lantinga <slouken@lokigames.com>
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137 }
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Sam Lantinga <slouken@lokigames.com>
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138
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Sam Lantinga <slouken@lokigames.com>
parents:
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139 /* Function to update the state of a joystick - called as a device poll.
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140 * This function shouldn't update the joystick structure directly,
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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141 * but instead should call SDL_PrivateJoystick*() to deliver events
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142 * and update joystick device state.
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143 */
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Sam Lantinga <slouken@lokigames.com>
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144 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
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145 {
255
dcb5e869f8b5 Updated Amiga port by Gabriele Greco
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146 ULONG data;
21
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147 int i;
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148
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149 if(joystick->index<2)
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150 {
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151 data=ReadJoyPort(joystick->index);
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152
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153 if(data&JP_DIRECTION_MASK)
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154 {
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155 if(data&JPF_JOY_DOWN)
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156 {
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157 if(!(joystick->hwdata->joystate&JPF_JOY_DOWN))
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158 SDL_PrivateJoystickAxis(joystick,0,127);
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159 }
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160 else if(data&JPF_JOY_UP)
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161 {
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162 if(!(joystick->hwdata->joystate&JPF_JOY_UP))
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163 SDL_PrivateJoystickAxis(joystick,0,-127);
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164 }
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165 else if(joystick->hwdata->joystate&(JPF_JOY_UP|JPF_JOY_DOWN))
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166 SDL_PrivateJoystickAxis(joystick,0,0);
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167
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Sam Lantinga <slouken@lokigames.com>
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168 if(data&JPF_JOY_LEFT)
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169 {
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170 if(!(joystick->hwdata->joystate&JPF_JOY_LEFT))
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171 SDL_PrivateJoystickAxis(joystick,1,-127);
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172 }
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Sam Lantinga <slouken@lokigames.com>
parents:
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173 else if(data&JPF_JOY_RIGHT)
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
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174 {
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
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175 if(!(joystick->hwdata->joystate&JPF_JOY_RIGHT))
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parents:
diff changeset
176 SDL_PrivateJoystickAxis(joystick,1,127);
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parents:
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177 }
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
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178 else if(joystick->hwdata->joystate&(JPF_JOY_LEFT|JPF_JOY_RIGHT))
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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parents:
diff changeset
179 SDL_PrivateJoystickAxis(joystick,1,0);
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diff changeset
180 }
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
181 else if(joystick->hwdata->joystate&(JPF_JOY_LEFT|JPF_JOY_RIGHT))
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
182 {
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
183 SDL_PrivateJoystickAxis(joystick,1,0);
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parents:
diff changeset
184 }
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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parents:
diff changeset
185 else if(joystick->hwdata->joystate&(JPF_JOY_UP|JPF_JOY_DOWN))
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
186 {
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
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parents:
diff changeset
187 SDL_PrivateJoystickAxis(joystick,0,0);
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diff changeset
188 }
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
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189
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
190 for(i=0;i<joystick->nbuttons;i++)
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
191 {
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
192 if( (data&joybut[i]) )
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
193 {
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
194 if(i==1)
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
195 data&=(~(joybut[2]));
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
196
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
197 if(!(joystick->hwdata->joystate&joybut[i]))
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
198 SDL_PrivateJoystickButton(joystick,i,SDL_PRESSED);
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
199 }
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
200 else if(joystick->hwdata->joystate&joybut[i])
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
201 SDL_PrivateJoystickButton(joystick,i,SDL_RELEASED);
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
202 }
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
203
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
204 joystick->hwdata->joystate=data;
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
205 }
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
206
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
207 return;
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
208 }
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
209
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
210 /* Function to close a joystick after use */
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
211 void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
212 {
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
213 if(joystick->hwdata)
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
214 SDL_free(joystick->hwdata);
21
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
215 return;
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
216 }
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
217
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
218 /* Function to perform any system-specific joystick related cleanup */
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
219
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
220 void SDL_SYS_JoystickQuit(void)
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
221 {
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
222 if(LowLevelBase)
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
223 {
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
224 CloseLibrary(LowLevelBase);
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
225 LowLevelBase=NULL;
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
226 SDL_numjoysticks=0;
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
227 }
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
228
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
229 return;
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
230 }
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
231