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comparison src/haptic/darwin/SDL_syshaptic.c @ 2641:e1e1be935178 gsoc2008_force_feedback

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More comments. Implemented haptic<->mouse on darwin.
author Edgar Simo <bobbens@gmail.com>
date Mon, 11 Aug 2008 11:40:44 +0000
parents 668fee3b268a
children b04679da6627
comparison
equal deleted inserted replaced
2640:e8a54b6fd512 2641:e1e1be935178
41 /* 41 /*
42 * List of available haptic devices. 42 * List of available haptic devices.
43 */ 43 */
44 static struct 44 static struct
45 { 45 {
46 char name[256]; 46 char name[256]; /* Name of the device. */
47 io_service_t dev; 47
48 SDL_Haptic *haptic; 48 io_service_t dev; /* Node we use to create the device. */
49 SDL_Haptic *haptic; /* Haptic currently assosciated with it. */
50
51 /* Usage pages for determining if it's a mouse or not. */
52 long usage;
53 long usagePage;
49 } SDL_hapticlist[MAX_HAPTICS]; 54 } SDL_hapticlist[MAX_HAPTICS];
50 55
51 56
52 /* 57 /*
53 * Haptic system hardware data. 58 * Haptic system hardware data.
141 int numhaptics; 146 int numhaptics;
142 IOReturn result; 147 IOReturn result;
143 io_iterator_t iter; 148 io_iterator_t iter;
144 CFDictionaryRef match; 149 CFDictionaryRef match;
145 io_service_t device; 150 io_service_t device;
151 CFMutableDictionaryRef hidProperties;
152 CFTypeRef refCF;
146 153
147 /* Clear all the memory. */ 154 /* Clear all the memory. */
148 SDL_memset(SDL_hapticlist, 0, sizeof(SDL_hapticlist)); 155 SDL_memset(SDL_hapticlist, 0, sizeof(SDL_hapticlist));
149 156
150 /* Get HID devices. */ 157 /* Get HID devices. */
160 SDL_SetError("Haptic: Couldn't create a HID object iterator."); 167 SDL_SetError("Haptic: Couldn't create a HID object iterator.");
161 return -1; 168 return -1;
162 } 169 }
163 /* IOServiceGetMatchingServices consumes dictionary. */ 170 /* IOServiceGetMatchingServices consumes dictionary. */
164 171
165 if (!iter) { /* No iterator. */ 172 if (!IOIteratorIsValid(iter)) { /* No iterator. */
166 numhaptics = 0; 173 numhaptics = 0;
167 return 0; 174 return 0;
168 } 175 }
169 176
170 numhaptics = 0; 177 numhaptics = 0;
171 while ((device = IOIteratorNext(iter)) != IO_OBJECT_NULL) { 178 while ((device = IOIteratorNext(iter)) != IO_OBJECT_NULL) {
172 179
173 /* Check for force feedback. */ 180 /* Check for force feedback. */
174 if (FFIsForceFeedback(device) == FF_OK) { 181 if (FFIsForceFeedback(device) == FF_OK) {
182
183 /* Set basic device data. */
175 HIDGetDeviceProduct(device, SDL_hapticlist[numhaptics].name); 184 HIDGetDeviceProduct(device, SDL_hapticlist[numhaptics].name);
176 SDL_hapticlist[numhaptics].dev = device; 185 SDL_hapticlist[numhaptics].dev = device;
177 SDL_hapticlist[numhaptics].haptic = NULL; 186 SDL_hapticlist[numhaptics].haptic = NULL;
187
188 /* Set usage pages. */
189 hidProperties = 0;
190 refCF = 0;
191 result = IORegistryEntryCreateCFProperties(device,
192 &hidProperties, kCFAllocatorDefault, kNilOptions);
193 if ((result == KERN_SUCCESS) && hidProperties) {
194 refCF = CFDictionaryGetValue(hidProperties, CFSTR(kIOHIDPrimaryUsagePageKey));
195 if (refCF) {
196 if (!CFNumberGetValue(refCF, kCFNumberLongType,
197 &SDL_hapticlist[numhaptics].usagePage))
198 SDL_SetError("Haptic: CFNumberGetValue error retrieving pDevice->usagePage.");
199 refCF = CFDictionaryGetValue(hidProperties, CFSTR(kIOHIDPrimaryUsageKey));
200 if (refCF) {
201 if (!CFNumberGetValue(refCF, kCFNumberLongType,
202 &SDL_hapticlist[numhaptics].usage))
203 SDL_SetError("Haptic: CFNumberGetValue error retrieving pDevice->usage.");
204 }
205 }
206 CFRelease(hidProperties);
207 }
208
209
210 /* Device has been added. */
178 numhaptics++; 211 numhaptics++;
179 } 212 }
180 else { /* Free the unused device. */ 213 else { /* Free the unused device. */
181 IOObjectRelease(device); 214 IOObjectRelease(device);
182 } 215 }
244 refCF = 277 refCF =
245 CFDictionaryGetValue(usbProperties, CFSTR("USB Product Name")); 278 CFDictionaryGetValue(usbProperties, CFSTR("USB Product Name"));
246 if (refCF) { 279 if (refCF) {
247 if (!CFStringGetCString(refCF, name, 256, 280 if (!CFStringGetCString(refCF, name, 256,
248 CFStringGetSystemEncoding())) { 281 CFStringGetSystemEncoding())) {
249 SDL_SetError("CFStringGetCString error retrieving pDevice->product."); 282 SDL_SetError("Haptic: CFStringGetCString error retrieving pDevice->product.");
250 return -1; 283 return -1;
251 } 284 }
252 } 285 }
253 286
254 CFRelease(usbProperties); 287 CFRelease(usbProperties);
255 } 288 }
256 else { 289 else {
257 SDL_SetError("IORegistryEntryCreateCFProperties failed to create usbProperties."); 290 SDL_SetError("Haptic: IORegistryEntryCreateCFProperties failed to create usbProperties.");
258 return -1; 291 return -1;
259 } 292 }
260 293
261 /* Release stuff. */ 294 /* Release stuff. */
262 if (kIOReturnSuccess != IOObjectRelease(parent2)) { 295 if (kIOReturnSuccess != IOObjectRelease(parent2)) {
263 SDL_SetError("IOObjectRelease error with parent2."); 296 SDL_SetError("Haptic: IOObjectRelease error with parent2.");
264 } 297 }
265 if (kIOReturnSuccess != IOObjectRelease(parent1)) { 298 if (kIOReturnSuccess != IOObjectRelease(parent1)) {
266 SDL_SetError("IOObjectRelease error with parent1."); 299 SDL_SetError("Haptic: IOObjectRelease error with parent1.");
267 } 300 }
268 } 301 }
269 else { 302 else {
270 SDL_SetError("Haptic: Error getting registry entries."); 303 SDL_SetError("Haptic: Error getting registry entries.");
271 return -1; 304 return -1;
440 * Opens a haptic device from first mouse it finds for usage. 473 * Opens a haptic device from first mouse it finds for usage.
441 */ 474 */
442 int 475 int
443 SDL_SYS_HapticMouse(void) 476 SDL_SYS_HapticMouse(void)
444 { 477 {
478 int i;
479
480 for (i=0; i<SDL_numhaptics; i++) {
481 if ((SDL_hapticlist[i].usagePage == kHIDPage_GenericDesktop) &&
482 (SDL_hapticlist[i].usage == kHIDUsage_GD_Mouse))
483 return i;
484 }
485
445 return -1; 486 return -1;
446 } 487 }
447 488
448 489
449 /* 490 /*