annotate src/haptic/SDL_haptic.c @ 2533:0c8cea99c4b8 gsoc2008_force_feedback

Added SDL_HAPTIC_RAMP support for darwin.
author Edgar Simo <bobbens@gmail.com>
date Fri, 18 Jul 2008 19:21:36 +0000
parents 2d88b82ce781
children 2274406ba792
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 #include "SDL_config.h"
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23
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24 #include "SDL_syshaptic.h"
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25 #include "../joystick/SDL_joystick_c.h" /* For SDL_PrivateJoystickValid */
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26
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27
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28 Uint8 SDL_numhaptics = 0;
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29 SDL_Haptic **SDL_haptics = NULL;
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30
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31
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32 /*
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33 * Initializes the Haptic devices.
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34 */
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35 int
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36 SDL_HapticInit(void)
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37 {
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38 int arraylen;
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39 int status;
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40
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41 SDL_numhaptics = 0;
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42 status = SDL_SYS_HapticInit();
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43 if (status >= 0) {
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44 arraylen = (status + 1) * sizeof(*SDL_haptics);
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45 SDL_haptics = (SDL_Haptic **) SDL_malloc(arraylen);
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46 if (SDL_haptics == NULL) { /* Out of memory. */
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47 SDL_numhaptics = 0;
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48 }
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49 else {
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50 SDL_memset(SDL_haptics, 0, arraylen);
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51 SDL_numhaptics = status;
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52 }
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53 status = 0;
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54 }
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55
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56 return status;
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57 }
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58
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59
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60 /*
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61 * Checks to see if the haptic device is valid
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62 */
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63 static int
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64 ValidHaptic(SDL_Haptic ** haptic)
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65 {
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66 int valid;
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67
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68 if (*haptic == NULL) {
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69 SDL_SetError("Haptic: Device hasn't been opened yet");
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70 valid = 0;
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71 } else {
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72 valid = 1;
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73 }
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74 return valid;
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75 }
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76
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77
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78 /*
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79 * Returns the number of available devices.
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80 */
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81 int
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82 SDL_NumHaptics(void)
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83 {
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84 return SDL_numhaptics;
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85 }
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86
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87
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88 /*
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89 * Gets the name of a Haptic device by index.
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90 */
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91 const char *
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92 SDL_HapticName(int device_index)
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93 {
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94 if ((device_index < 0) || (device_index >= SDL_numhaptics)) {
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95 SDL_SetError("Haptic: There are %d haptic devices available", SDL_numhaptics);
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96 return NULL;
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97 }
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98 return SDL_SYS_HapticName(device_index);
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99 }
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100
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101
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102 /*
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103 * Opens a Haptic device.
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104 */
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105 SDL_Haptic *
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106 SDL_HapticOpen(int device_index)
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107 {
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108 int i;
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109 SDL_Haptic *haptic;
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110
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111 if ((device_index < 0) || (device_index >= SDL_numhaptics)) {
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112 SDL_SetError("Haptic: There are %d haptic devices available", SDL_numhaptics);
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113 return NULL;
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114 }
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115
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116 /* If the haptic is already open, return it */
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117 for (i=0; SDL_haptics[i]; i++) {
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118 if (device_index == SDL_haptics[i]->index) {
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119 haptic = SDL_haptics[i];
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120 ++haptic->ref_count;
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121 return haptic;
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122 }
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123 }
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124
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125 /* Create the haptic device */
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126 haptic = (SDL_Haptic *) SDL_malloc((sizeof *haptic));
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127 if (haptic == NULL) {
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128 SDL_OutOfMemory();
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129 return NULL;
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130 }
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131
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132 /* Initialize the haptic device */
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133 SDL_memset(haptic, 0, (sizeof *haptic));
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134 haptic->index = device_index;
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135 if (SDL_SYS_HapticOpen(haptic) < 0) {
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136 SDL_free(haptic);
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137 return NULL;
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138 }
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139
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140 /* Disable autocenter and set gain to max. */
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141 if (haptic->supported & SDL_HAPTIC_GAIN)
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142 SDL_HapticSetGain(haptic,100);
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143 if (haptic->supported & SDL_HAPTIC_AUTOCENTER)
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144 SDL_HapticSetAutocenter(haptic,0);
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145
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146 /* Add haptic to list */
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147 ++haptic->ref_count;
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148 for (i=0; SDL_haptics[i]; i++)
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149 /* Skip to next haptic */ ;
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150 SDL_haptics[i] = haptic;
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151
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3f73c88c9abb First commit of the SDL_haptic subsystem.
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152 return haptic;
3f73c88c9abb First commit of the SDL_haptic subsystem.
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diff changeset
153 }
2474
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
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154
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
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155
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4b874e3a3a2c Some code cleanup.
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diff changeset
156 /*
2506
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157 * Returns 1 if the device has been opened.
ba8e99fe92c1 Added SDL_HapticOpened().
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158 */
ba8e99fe92c1 Added SDL_HapticOpened().
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159 int
ba8e99fe92c1 Added SDL_HapticOpened().
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160 SDL_HapticOpened(int device_index)
ba8e99fe92c1 Added SDL_HapticOpened().
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161 {
ba8e99fe92c1 Added SDL_HapticOpened().
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162 int i, opened;
ba8e99fe92c1 Added SDL_HapticOpened().
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163
ba8e99fe92c1 Added SDL_HapticOpened().
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164 opened = 0;
ba8e99fe92c1 Added SDL_HapticOpened().
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165 for (i=0; SDL_haptics[i]; i++) {
ba8e99fe92c1 Added SDL_HapticOpened().
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166 if (SDL_haptics[i]->index == (Uint8) device_index) {
ba8e99fe92c1 Added SDL_HapticOpened().
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167 opened = 1;
ba8e99fe92c1 Added SDL_HapticOpened().
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168 break;
ba8e99fe92c1 Added SDL_HapticOpened().
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169 }
ba8e99fe92c1 Added SDL_HapticOpened().
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170 }
ba8e99fe92c1 Added SDL_HapticOpened().
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171 return opened;
ba8e99fe92c1 Added SDL_HapticOpened().
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172 }
ba8e99fe92c1 Added SDL_HapticOpened().
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173
ba8e99fe92c1 Added SDL_HapticOpened().
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174
ba8e99fe92c1 Added SDL_HapticOpened().
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175 /*
2505
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176 * Returns the index to a haptic device.
abfcba0f3bd1 Added SDL_HapticIndex.
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177 */
abfcba0f3bd1 Added SDL_HapticIndex.
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178 int
abfcba0f3bd1 Added SDL_HapticIndex.
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179 SDL_HapticIndex(SDL_Haptic * haptic)
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180 {
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181 if (!ValidHaptic(&haptic)) {
abfcba0f3bd1 Added SDL_HapticIndex.
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182 return -1;
abfcba0f3bd1 Added SDL_HapticIndex.
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183 }
abfcba0f3bd1 Added SDL_HapticIndex.
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184
abfcba0f3bd1 Added SDL_HapticIndex.
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185 return haptic->index;
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186 }
abfcba0f3bd1 Added SDL_HapticIndex.
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187
abfcba0f3bd1 Added SDL_HapticIndex.
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188
abfcba0f3bd1 Added SDL_HapticIndex.
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189 /*
2512
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190 * Returns SDL_TRUE if mouse is haptic, SDL_FALSE if it isn't.
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191 */
ef147ee4896c Improved some ioctl handling.
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192 int
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193 SDL_MouseIsHaptic(void)
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194 {
ef147ee4896c Improved some ioctl handling.
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195 if (SDL_SYS_HapticMouse() < 0)
ef147ee4896c Improved some ioctl handling.
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196 return SDL_FALSE;
ef147ee4896c Improved some ioctl handling.
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197 return SDL_TRUE;
ef147ee4896c Improved some ioctl handling.
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198 }
ef147ee4896c Improved some ioctl handling.
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199
ef147ee4896c Improved some ioctl handling.
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200
ef147ee4896c Improved some ioctl handling.
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201 /*
ef147ee4896c Improved some ioctl handling.
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202 * Returns the haptic device if mouse is haptic or NULL elsewise.
ef147ee4896c Improved some ioctl handling.
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203 */
ef147ee4896c Improved some ioctl handling.
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204 SDL_Haptic *
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205 SDL_HapticOpenFromMouse(void)
ef147ee4896c Improved some ioctl handling.
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206 {
ef147ee4896c Improved some ioctl handling.
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207 int device_index;
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208
ef147ee4896c Improved some ioctl handling.
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209 device_index = SDL_SYS_HapticMouse();
ef147ee4896c Improved some ioctl handling.
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210
ef147ee4896c Improved some ioctl handling.
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211 if (device_index < 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
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212 SDL_SetError("Haptic: Mouse isn't a haptic device.");
2512
ef147ee4896c Improved some ioctl handling.
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213 return NULL;
ef147ee4896c Improved some ioctl handling.
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214 }
ef147ee4896c Improved some ioctl handling.
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215
ef147ee4896c Improved some ioctl handling.
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216 return SDL_HapticOpen(device_index);
ef147ee4896c Improved some ioctl handling.
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217 }
ef147ee4896c Improved some ioctl handling.
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218
ef147ee4896c Improved some ioctl handling.
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diff changeset
219
ef147ee4896c Improved some ioctl handling.
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diff changeset
220 /*
2489
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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221 * Returns SDL_TRUE if joystick has haptic features.
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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222 */
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
223 int
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
224 SDL_JoystickIsHaptic(SDL_Joystick * joystick)
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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225 {
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
226 int ret;
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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227
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228 /* Must be a valid joystick */
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96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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229 if (!SDL_PrivateJoystickValid(&joystick)) {
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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230 return -1;
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
231 }
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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232
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
233 ret = SDL_SYS_JoystickIsHaptic(joystick);
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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234
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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235 if (ret > 0) return SDL_TRUE;
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
236 else if (ret == 0) return SDL_FALSE;
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
237 else return -1;
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
238 }
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
239
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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240
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
241 /*
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
242 * Opens a haptic device from a joystick.
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2488
diff changeset
243 */
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
244 SDL_Haptic *
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
245 SDL_HapticOpenFromJoystick(SDL_Joystick * joystick)
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
246 {
2490
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diff changeset
247 int i;
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diff changeset
248 SDL_Haptic *haptic;
be9b206d44af Some more error checking.
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249
be9b206d44af Some more error checking.
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250 /* Must be a valid joystick */
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96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
251 if (!SDL_PrivateJoystickValid(&joystick)) {
2490
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252 return NULL;
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diff changeset
253 }
be9b206d44af Some more error checking.
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254
be9b206d44af Some more error checking.
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diff changeset
255 /* Joystick must be haptic */
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diff changeset
256 if (SDL_SYS_JoystickIsHaptic(joystick) <= 0) {
be9b206d44af Some more error checking.
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diff changeset
257 return NULL;
be9b206d44af Some more error checking.
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diff changeset
258 }
be9b206d44af Some more error checking.
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diff changeset
259
be9b206d44af Some more error checking.
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diff changeset
260 /* Check to see if joystick's haptic is already open */
be9b206d44af Some more error checking.
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diff changeset
261 for (i=0; SDL_haptics[i]; i++) {
2491
10bc7aaf5114 Commented SDL_syshaptic.h.
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parents: 2490
diff changeset
262 if (SDL_SYS_JoystickSameHaptic(SDL_haptics[i],joystick)) {
2490
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diff changeset
263 haptic = SDL_haptics[i];
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diff changeset
264 ++haptic->ref_count;
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diff changeset
265 return haptic;
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parents: 2489
diff changeset
266 }
2489
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
267 }
2490
be9b206d44af Some more error checking.
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diff changeset
268
be9b206d44af Some more error checking.
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diff changeset
269 /* Create the haptic device */
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diff changeset
270 haptic = (SDL_Haptic *) SDL_malloc((sizeof *haptic));
be9b206d44af Some more error checking.
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diff changeset
271 if (haptic == NULL) {
be9b206d44af Some more error checking.
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diff changeset
272 SDL_OutOfMemory();
be9b206d44af Some more error checking.
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diff changeset
273 return NULL;
be9b206d44af Some more error checking.
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diff changeset
274 }
be9b206d44af Some more error checking.
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diff changeset
275
be9b206d44af Some more error checking.
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diff changeset
276 /* Initialize the haptic device */
2524
1a55848ce198 Better handling of opening haptics from joysticks.
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parents: 2523
diff changeset
277 SDL_memset(haptic, 0, sizeof(SDL_Haptic));
2490
be9b206d44af Some more error checking.
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diff changeset
278 if (SDL_SYS_HapticOpenFromJoystick(haptic,joystick) < 0) {
be9b206d44af Some more error checking.
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diff changeset
279 SDL_free(haptic);
be9b206d44af Some more error checking.
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diff changeset
280 return NULL;
be9b206d44af Some more error checking.
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diff changeset
281 }
be9b206d44af Some more error checking.
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diff changeset
282
be9b206d44af Some more error checking.
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diff changeset
283 /* Add haptic to list */
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diff changeset
284 ++haptic->ref_count;
be9b206d44af Some more error checking.
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diff changeset
285 for (i=0; SDL_haptics[i]; i++)
be9b206d44af Some more error checking.
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diff changeset
286 /* Skip to next haptic */ ;
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diff changeset
287 SDL_haptics[i] = haptic;
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diff changeset
288
be9b206d44af Some more error checking.
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diff changeset
289 return haptic;
2489
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
290 }
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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diff changeset
291
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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parents: 2488
diff changeset
292
96adc8025331 Exposed some of the joystick stuff to the haptic subsystem.
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parents: 2488
diff changeset
293 /*
2475
4b874e3a3a2c Some code cleanup.
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parents: 2474
diff changeset
294 * Closes a SDL_Haptic device.
4b874e3a3a2c Some code cleanup.
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parents: 2474
diff changeset
295 */
4b874e3a3a2c Some code cleanup.
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parents: 2474
diff changeset
296 void
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
297 SDL_HapticClose(SDL_Haptic * haptic)
4b874e3a3a2c Some code cleanup.
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parents: 2474
diff changeset
298 {
2476
242d8a668ebb * Implemented opening and closing of haptic devices.
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parents: 2475
diff changeset
299 int i;
242d8a668ebb * Implemented opening and closing of haptic devices.
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diff changeset
300
242d8a668ebb * Implemented opening and closing of haptic devices.
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parents: 2475
diff changeset
301 /* Must be valid */
242d8a668ebb * Implemented opening and closing of haptic devices.
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parents: 2475
diff changeset
302 if (!ValidHaptic(&haptic)) {
242d8a668ebb * Implemented opening and closing of haptic devices.
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parents: 2475
diff changeset
303 return;
242d8a668ebb * Implemented opening and closing of haptic devices.
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parents: 2475
diff changeset
304 }
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
305
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
306 /* Check if it's still in use */
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
307 if (--haptic->ref_count < 0) {
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
308 return;
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
309 }
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
310
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
311 /* Close it, properly removing effects if needed */
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
312 for (i=0; i<haptic->neffects; i++) {
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
313 if (haptic->effects[i].hweffect != NULL) {
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
314 SDL_HapticDestroyEffect(haptic,i);
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
315 }
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
316 }
2476
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
317 SDL_SYS_HapticClose(haptic);
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
318
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
319 /* Remove from the list */
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
320 for (i = 0; SDL_haptics[i]; ++i) {
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
321 if (haptic == SDL_haptics[i]) {
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
322 SDL_memcpy(&SDL_haptics[i], &SDL_haptics[i + 1],
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
323 (SDL_numhaptics - i) * sizeof(haptic));
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
324 break;
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
325 }
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
326 }
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
327
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
328 /* Free */
242d8a668ebb * Implemented opening and closing of haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2475
diff changeset
329 SDL_free(haptic);
2475
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
330 }
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
331
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
332 /*
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
333 * Cleans up after the subsystem.
4b874e3a3a2c Some code cleanup.
Edgar Simo <bobbens@gmail.com>
parents: 2474
diff changeset
334 */
2474
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
335 void
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
336 SDL_HapticQuit(void)
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
337 {
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
338 SDL_SYS_HapticQuit();
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
339 if (SDL_haptics != NULL) {
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
340 SDL_free(SDL_haptics);
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
341 SDL_haptics = NULL;
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
342 }
2514
840e1b6325c0 Minor corrections.
Edgar Simo <bobbens@gmail.com>
parents: 2513
diff changeset
343 SDL_numhaptics = 0;
2474
3f80bf1528b4 Properly quit the SDL_haptic subsystem.
Edgar Simo <bobbens@gmail.com>
parents: 2472
diff changeset
344 }
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
345
2478
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
346 /*
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
347 * Returns the number of effects a haptic device has.
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
348 */
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
349 int
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
350 SDL_HapticNumEffects(SDL_Haptic * haptic)
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
351 {
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
352 if (!ValidHaptic(&haptic)) {
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
353 return -1;
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
354 }
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
355
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
356 return haptic->neffects;
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
357 }
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
358
2515
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
359
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
360 /*
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
361 * Returns the number of effects a haptic device can play.
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
362 */
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
363 int
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
364 SDL_HapticNumEffectsPlaying(SDL_Haptic * haptic)
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
365 {
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
366 if (!ValidHaptic(&haptic)) {
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
367 return -1;
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
368 }
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
369
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
370 return haptic->nplaying;
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
371 }
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
372
030fc4375e63 Added SDL_HapticNumEffectsPlaying().
Edgar Simo <bobbens@gmail.com>
parents: 2514
diff changeset
373
2478
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
374 /*
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
375 * Returns supported effects by the device.
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
376 */
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
377 unsigned int
2497
0893fbf73b3d Renamed SDL_HapticQueryEffects to SDL_HapticQuery.
Edgar Simo <bobbens@gmail.com>
parents: 2495
diff changeset
378 SDL_HapticQuery(SDL_Haptic * haptic)
2478
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
379 {
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
380 if (!ValidHaptic(&haptic)) {
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
381 return -1;
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
382 }
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
383
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
384 return haptic->supported;
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
385 }
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
386
2523
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
387
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
388 /*
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
389 * Returns the number of axis on the device.
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
390 */
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
391 int
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
392 SDL_HapticNumAxes(SDL_Haptic * haptic)
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
393 {
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
394 if (!ValidHaptic(&haptic)) {
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
395 return -1;
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
396 }
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
397
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
398 return haptic->naxes;
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
399 }
366d84fdf8d1 Haptic subsystem handles haptic axes now.
Edgar Simo <bobbens@gmail.com>
parents: 2519
diff changeset
400
2486
24dd8b8669fa Added SDL_HAPTIC_CUSTOM (not supported on linux).
Edgar Simo <bobbens@gmail.com>
parents: 2485
diff changeset
401 /*
24dd8b8669fa Added SDL_HAPTIC_CUSTOM (not supported on linux).
Edgar Simo <bobbens@gmail.com>
parents: 2485
diff changeset
402 * Checks to see if the device can support the effect.
24dd8b8669fa Added SDL_HAPTIC_CUSTOM (not supported on linux).
Edgar Simo <bobbens@gmail.com>
parents: 2485
diff changeset
403 */
2478
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
404 int
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
405 SDL_HapticEffectSupported(SDL_Haptic * haptic, SDL_HapticEffect * effect)
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
406 {
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
407 if (!ValidHaptic(&haptic)) {
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
408 return -1;
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
409 }
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
410
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
411 if ((haptic->supported & effect->type) != 0)
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
412 return SDL_TRUE;
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
413 return SDL_FALSE;
4fd783e0f34b Added query functions for haptic devices.
Edgar Simo <bobbens@gmail.com>
parents: 2477
diff changeset
414 }
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
415
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
416 /*
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
417 * Creates a new haptic effect.
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
418 */
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
419 int
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
420 SDL_HapticNewEffect(SDL_Haptic * haptic, SDL_HapticEffect * effect)
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
421 {
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
422 int i;
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
423
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
424 /* Check for device validity. */
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
425 if (!ValidHaptic(&haptic)) {
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
426 return -1;
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
427 }
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
428
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
429 /* Check to see if effect is supported */
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
430 if (SDL_HapticEffectSupported(haptic,effect)==SDL_FALSE) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
431 SDL_SetError("Haptic: Effect not supported by haptic device.");
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
432 return -1;
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
433 }
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
434
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
435 /* See if there's a free slot */
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
436 for (i=0; i<haptic->neffects; i++) {
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
437 if (haptic->effects[i].hweffect == NULL) {
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
438
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
439 /* Now let the backend create the real effect */
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
440 if (SDL_SYS_HapticNewEffect(haptic,&haptic->effects[i],effect) != 0) {
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
441 return -1; /* Backend failed to create effect */
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
442 }
2526
2d88b82ce781 More documentation.
Edgar Simo <bobbens@gmail.com>
parents: 2524
diff changeset
443
2d88b82ce781 More documentation.
Edgar Simo <bobbens@gmail.com>
parents: 2524
diff changeset
444 SDL_memcpy(&haptic->effects[i].effect, effect, sizeof(SDL_HapticEffect));
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
445 return i;
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
446 }
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
447 }
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
448
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
449 SDL_SetError("Haptic: Device has no free space left.");
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
450 return -1;
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
451 }
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
452
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
453 /*
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
454 * Checks to see if an effect is valid.
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
455 */
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
456 static int
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
457 ValidEffect(SDL_Haptic * haptic, int effect)
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
458 {
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
459 if ((effect < 0) || (effect >= haptic->neffects)) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
460 SDL_SetError("Haptic: Invalid effect identifier.");
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
461 return 0;
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
462 }
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
463 return 1;
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
464 }
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
465
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
466 /*
2488
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
467 * Updates an effect.
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
468 */
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
469 int
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
470 SDL_HapticUpdateEffect(SDL_Haptic * haptic, int effect, SDL_HapticEffect * data)
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
471 {
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
472 if (!ValidHaptic(&haptic) || !ValidEffect(haptic,effect)) {
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
473 return -1;
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
474 }
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
475
2526
2d88b82ce781 More documentation.
Edgar Simo <bobbens@gmail.com>
parents: 2524
diff changeset
476 /* Can't change type dynamically. */
2d88b82ce781 More documentation.
Edgar Simo <bobbens@gmail.com>
parents: 2524
diff changeset
477 if (data->type != haptic->effects[effect].effect.type) {
2d88b82ce781 More documentation.
Edgar Simo <bobbens@gmail.com>
parents: 2524
diff changeset
478 SDL_SetError("Haptic: Updating effect type is illegal.");
2d88b82ce781 More documentation.
Edgar Simo <bobbens@gmail.com>
parents: 2524
diff changeset
479 return -1;
2d88b82ce781 More documentation.
Edgar Simo <bobbens@gmail.com>
parents: 2524
diff changeset
480 }
2d88b82ce781 More documentation.
Edgar Simo <bobbens@gmail.com>
parents: 2524
diff changeset
481
2488
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
482 /* Updates the effect */
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
483 if (SDL_SYS_HapticUpdateEffect(haptic,&haptic->effects[effect],data) < 0) {
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
484 return -1;
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
485 }
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
486
2526
2d88b82ce781 More documentation.
Edgar Simo <bobbens@gmail.com>
parents: 2524
diff changeset
487 SDL_memcpy(&haptic->effects[effect].effect, data, sizeof(SDL_HapticEffect));
2488
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
488 return 0;
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
489 }
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
490
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
491
8e2bdbccf7ff Added SDL_HapticUpdateEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2486
diff changeset
492 /*
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
493 * Runs the haptic effect on the device.
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
494 */
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
495 int
2519
af9df9662807 More explicit with iterations and length.
Edgar Simo <bobbens@gmail.com>
parents: 2517
diff changeset
496 SDL_HapticRunEffect(SDL_Haptic * haptic, int effect, Uint32 iterations)
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
497 {
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
498 if (!ValidHaptic(&haptic) || !ValidEffect(haptic,effect)) {
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
499 return -1;
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
500 }
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
501
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
502 /* Run the effect */
2517
37c13c12c878 Broke API by introducing iterations to SDL_HapticRunEffects().
Edgar Simo <bobbens@gmail.com>
parents: 2515
diff changeset
503 if (SDL_SYS_HapticRunEffect(haptic,&haptic->effects[effect], iterations) < 0) {
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
504 return -1;
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
505 }
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
506
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
507 return 0;
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
508 }
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
509
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
510 /*
2485
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
511 * Stops the haptic effect on the device.
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
512 */
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
513 int
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
514 SDL_HapticStopEffect(SDL_Haptic * haptic, int effect)
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
515 {
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
516 if (!ValidHaptic(&haptic) || !ValidEffect(haptic,effect)) {
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
517 return -1;
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
518 }
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
519
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
520 /* Stop the effect */
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
521 if (SDL_SYS_HapticStopEffect(haptic,&haptic->effects[effect]) < 0) {
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
522 return -1;
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
523 }
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
524
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
525 return 0;
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
526 }
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
527
67978eea6d10 Added SDL_HapticStopEffect().
Edgar Simo <bobbens@gmail.com>
parents: 2484
diff changeset
528 /*
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
529 * Gets rid of a haptic effect.
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
530 */
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
531 void
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
532 SDL_HapticDestroyEffect(SDL_Haptic * haptic, int effect)
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
533 {
2480
b883974445fc Some more error reporting.
Edgar Simo <bobbens@gmail.com>
parents: 2479
diff changeset
534 if (!ValidHaptic(&haptic) || !ValidEffect(haptic,effect)) {
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
535 return;
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
536 }
2479
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
537
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
538 /* Not allocated */
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
539 if (haptic->effects[effect].hweffect == NULL) {
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
540 return;
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
541 }
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
542
b9eb2cfe16cd Added some preliminary support for haptic effect control.
Edgar Simo <bobbens@gmail.com>
parents: 2478
diff changeset
543 SDL_SYS_HapticDestroyEffect(haptic, &haptic->effects[effect]);
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
544 }
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
545
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
546 /*
2495
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
547 * Gets the status of a haptic effect.
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
548 */
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
549 int
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
550 SDL_HapticGetEffectStatus(SDL_Haptic *haptic, int effect)
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
551 {
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
552 if (!ValidHaptic(&haptic) || !ValidEffect(haptic,effect)) {
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
553 return -1;
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
554 }
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
555
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
556 if ((haptic->supported & SDL_HAPTIC_STATUS) == 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
557 SDL_SetError("Haptic: Device does not support status queries.");
2495
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
558 return -1;
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
559 }
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
560
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
561 return SDL_SYS_HapticGetEffectStatus(haptic, &haptic->effects[effect]);
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
562 }
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
563
66c02abeef0e Added SDL_HapticGetEffectStatus().
Edgar Simo <bobbens@gmail.com>
parents: 2491
diff changeset
564 /*
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
565 * Sets the global gain of the device.
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
566 */
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
567 int
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
568 SDL_HapticSetGain(SDL_Haptic * haptic, int gain )
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
569 {
2507
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
570 const char *env;
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
571 int real_gain, max_gain;
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
572
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
573 if (!ValidHaptic(&haptic)) {
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
574 return -1;
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
575 }
2477
97f75ea43a93 Starting to add infrastructure to handle haptic effects.
Edgar Simo <bobbens@gmail.com>
parents: 2476
diff changeset
576
2484
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
577 if ((haptic->supported & SDL_HAPTIC_GAIN) == 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
578 SDL_SetError("Haptic: Device does not support setting gain.");
2484
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
579 return -1;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
580 }
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
581
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
582 if ((gain < 0) || (gain > 100)) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
583 SDL_SetError("Haptic: Gain must be between 0 and 100.");
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
584 return -1;
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
585 }
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
586
2507
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
587 /* We use the envvar to get the maximum gain. */
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
588 env = SDL_getenv("SDL_HAPTIC_GAIN_MAX");
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
589 if (env != NULL) {
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
590 max_gain = SDL_atoi(env);
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
591
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
592 /* Check for sanity. */
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
593 if (max_gain < 0) max_gain = 0;
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
594 else if (max_gain > 100) max_gain = 100;
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
595
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
596 /* We'll scale it linearly with SDL_HAPTIC_GAIN_MAX */
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
597 real_gain = (gain * max_gain) / 100;
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
598 }
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
599 else {
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
600 real_gain = gain;
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
601 }
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
602
8ef1d0f4d0c1 Gain is set to max on haptic device open.
Edgar Simo <bobbens@gmail.com>
parents: 2506
diff changeset
603 if (SDL_SYS_HapticSetGain(haptic,real_gain) < 0) {
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
604 return -1;
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
605 }
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
606
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
607 return 0;
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
608 }
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
609
2484
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
610 /*
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
611 * Makes the device autocenter, 0 disables.
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
612 */
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
613 int
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
614 SDL_HapticSetAutocenter(SDL_Haptic * haptic, int autocenter )
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
615 {
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
616 if (!ValidHaptic(&haptic)) {
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
617 return -1;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
618 }
2483
9d52368ebcf5 Setting effects memory to 0.
Edgar Simo <bobbens@gmail.com>
parents: 2480
diff changeset
619
2484
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
620 if ((haptic->supported & SDL_HAPTIC_AUTOCENTER) == 0) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
621 SDL_SetError("Haptic: Device does not support setting autocenter.");
2484
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
622 return -1;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
623 }
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
624
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
625 if ((autocenter < 0) || (autocenter > 100)) {
2513
55fd9103a330 Prefixed all haptic errors with "Haptic:" for easier readability.
Edgar Simo <bobbens@gmail.com>
parents: 2512
diff changeset
626 SDL_SetError("Haptic: Autocenter must be between 0 and 100.");
2484
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
627 return -1;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
628 }
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
629
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
630 if (SDL_SYS_HapticSetAutocenter(haptic,autocenter) < 0) {
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
631 return -1;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
632 }
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
633
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
634 return 0;
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
635 }
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
636
666472fd4cb0 HapticSetGain checks to see if device supports it.
Edgar Simo <bobbens@gmail.com>
parents: 2483
diff changeset
637