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annotate src/haptic/SDL_syshaptic.h @ 2515:030fc4375e63 gsoc2008_force_feedback

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Added SDL_HapticNumEffectsPlaying().
author Edgar Simo <bobbens@gmail.com>
date Thu, 10 Jul 2008 17:16:11 +0000
parents ef147ee4896c
children 37c13c12c878
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 2008 Edgar Simo
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #include "SDL_config.h"
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24
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25 #include "SDL_haptic.h"
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26
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27
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28 /*
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29 * Number of haptic devices on the system.
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30 */
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31 extern Uint8 SDL_numhaptics;
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32
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33
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34 struct haptic_effect
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35 {
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36 SDL_HapticEffect effect; /* The current event */
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37 struct haptic_hweffect *hweffect; /* The hardware behind the event */
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38 };
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39
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40 /*
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41 * The real SDL_Haptic event.
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42 */
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43 struct _SDL_Haptic
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44 {
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45 Uint8 index; /* Stores index it is attached to */
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46 const char* name; /* Stores the name of the device */
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47
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48 struct haptic_effect *effects; /* Allocated effects */
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49 int neffects; /* Maximum amount of effects */
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50 int nplaying; /* Maximum amount of effects to play at the same time */
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51 unsigned int supported; /* Supported effects */
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52
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53 struct haptic_hwdata *hwdata; /* Driver dependent */
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54 int ref_count; /* Count for multiple opens */
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55 };
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56
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57 /*
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58 * Scans the system for haptic devices.
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59 *
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60 * Returns 0 on success, -1 on error.
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61 */
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62 extern int SDL_SYS_HapticInit(void);
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63
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64 /*
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65 * Gets the device dependent name of the haptic device
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66 */
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67 extern const char * SDL_SYS_HapticName(int index);
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68
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69 /*
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70 * Opens the haptic device for usage. The haptic device should have
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71 * the index value set previously.
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72 *
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73 * Returns 0 on success, -1 on error.
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74 */
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75 extern int SDL_SYS_HapticOpen(SDL_Haptic * haptic);
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76
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77 /*
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78 * Returns the index of the haptic core pointer or -1 if none is found.
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79 */
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80 int SDL_SYS_HapticMouse(void);
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81
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82 /*
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83 * Checks to see if the joystick has haptic capabilities.
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84 *
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85 * Returns >0 if haptic capabilities are detected, 0 if haptic
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86 * capabilities aren't detected and -1 on error.
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87 */
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88 extern int SDL_JoystickIsHaptic(SDL_Joystick * joystick);
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89
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90 /*
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91 * Opens the haptic device for usage using the same device as
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92 * the joystick.
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93 *
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94 * Returns 0 on success, -1 on error.
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95 */
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96 extern int SDL_SYS_HapticOpenFromJoystick(SDL_Haptic * haptic,
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97 SDL_Joystick * joystick);
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98 /*
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99 * Checks to see if haptic device and joystick device are the same.
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100 *
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101 * Returns 1 if they are the same, 0 if they aren't.
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102 */
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103 extern int SDL_SYS_JoystickSameHaptic(SDL_Haptic * haptic,
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104 SDL_Joystick * joystick);
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105
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106 /*
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107 * Closes a haptic device after usage.
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108 */
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109 extern void SDL_SYS_HapticClose(SDL_Haptic * haptic);
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110
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111 /*
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112 * Performs a cleanup on the haptic subsystem.
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113 */
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114 extern void SDL_SYS_HapticQuit(void);
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115
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116 /*
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117 * Creates a new haptic effect on the haptic device using base
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118 * as a template for the effect.
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119 *
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120 * Returns 0 on success, -1 on error.
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121 */
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122 extern int SDL_SYS_HapticNewEffect(SDL_Haptic * haptic,
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123 struct haptic_effect * effect,
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124 SDL_HapticEffect * base);
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125
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126 /*
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127 * Updates the haptic effect on the haptic device using data
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128 * as a template.
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129 *
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130 * Returns 0 on success, -1 on error.
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131 */
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132 extern int SDL_SYS_HapticUpdateEffect(SDL_Haptic * haptic,
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133 struct haptic_effect * effect,
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134 SDL_HapticEffect * data);
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135
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136 /*
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137 * Runs the effect on the haptic device.
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138 *
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139 * Returns 0 on success, -1 on error.
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140 */
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141 extern int SDL_SYS_HapticRunEffect(SDL_Haptic * haptic,
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142 struct haptic_effect * effect);
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143
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144 /*
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145 * Stops the effect on the haptic device.
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146 *
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147 * Returns 0 on success, -1 on error.
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148 */
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149 extern int SDL_SYS_HapticStopEffect(SDL_Haptic * haptic,
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150 struct haptic_effect * effect);
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151
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152 /*
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153 * Cleanups up the effect on the haptic device.
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154 */
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155 extern void SDL_SYS_HapticDestroyEffect(SDL_Haptic * haptic,
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156 struct haptic_effect * effect);
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157
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158 /*
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159 * Queries the device for the status of effect.
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160 *
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161 * Returns 0 if device is stopped, >0 if device is playing and
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162 * -1 on error.
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163 */
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164 extern int SDL_SYS_HapticGetEffectStatus(SDL_Haptic * haptic,
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165 struct haptic_effect * effect);
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166
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167 /*
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168 * Sets the global gain of the haptic device.
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169 *
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170 * Returns 0 on success, -1 on error.
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171 */
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172 extern int SDL_SYS_HapticSetGain(SDL_Haptic * haptic, int gain);
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173
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174 /*
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175 * Sets the autocenter feature of the haptic device.
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176 *
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177 * Returns 0 on success, -1 on error.
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178 */
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179 extern int SDL_SYS_HapticSetAutocenter(SDL_Haptic * haptic,
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180 int autocenter);
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181
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182