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comparison src/haptic/SDL_haptic.c @ 2476:242d8a668ebb gsoc2008_force_feedback

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* Implemented opening and closing of haptic devices.
author Edgar Simo <bobbens@gmail.com>
date Mon, 23 Jun 2008 09:01:58 +0000
parents 4b874e3a3a2c
children 97f75ea43a93
comparison
equal deleted inserted replaced
2475:4b874e3a3a2c 2476:242d8a668ebb
111 SDL_memset(haptic, 0, (sizeof *haptic)); 111 SDL_memset(haptic, 0, (sizeof *haptic));
112 haptic->index = device_index; 112 haptic->index = device_index;
113 if (SDL_SYS_HapticOpen(haptic) < 0) { 113 if (SDL_SYS_HapticOpen(haptic) < 0) {
114 SDL_free(haptic); 114 SDL_free(haptic);
115 haptic = NULL; 115 haptic = NULL;
116 } else {
117 } 116 }
118 } 117 }
119 if (haptic) { 118 if (haptic) {
120 /* Add haptic to list */ 119 /* Add haptic to list */
121 ++haptic->ref_count; 120 ++haptic->ref_count;
126 return haptic; 125 return haptic;
127 } 126 }
128 127
129 128
130 /* 129 /*
130 * Checks to see if the haptic device is valid
131 */
132 static int
133 ValidHaptic(SDL_Haptic ** haptic)
134 {
135 int valid;
136
137 if (*haptic == NULL) {
138 SDL_SetError("Haptic device hasn't been opened yet");
139 valid = 0;
140 } else {
141 valid = 1;
142 }
143 return valid;
144 }
145
146
147 /*
131 * Closes a SDL_Haptic device. 148 * Closes a SDL_Haptic device.
132 */ 149 */
133 void 150 void
134 SDL_HapticClose(SDL_Haptic * haptic) 151 SDL_HapticClose(SDL_Haptic * haptic)
135 { 152 {
136 (void)haptic; 153 int i;
137 /* TODO */ 154
155 /* Must be valid */
156 if (!ValidHaptic(&haptic)) {
157 return;
158 }
159
160 /* Check if it's still in use */
161 if (--haptic->ref_count < 0) {
162 return;
163 }
164
165 /* Close it */
166 SDL_SYS_HapticClose(haptic);
167
168 /* Remove from the list */
169 for (i = 0; SDL_haptics[i]; ++i) {
170 if (haptic == SDL_haptics[i]) {
171 SDL_memcpy(&SDL_haptics[i], &SDL_haptics[i + 1],
172 (SDL_numhaptics - i) * sizeof(haptic));
173 break;
174 }
175 }
176
177 /* Free */
178 SDL_free(haptic);
138 } 179 }
139 180
140 /* 181 /*
141 * Cleans up after the subsystem. 182 * Cleans up after the subsystem.
142 */ 183 */