C++ (Cpp) weston_seat_init_touch示例

示例#1

文件： evdev.c 项目： anderco/weston

static int
evdev_configure_device(struct evdev_device *device)
{
	if ((device->caps &
	     (EVDEV_MOTION_ABS | EVDEV_MOTION_REL | EVDEV_BUTTON))) {
		weston_seat_init_pointer(device->seat);
		weston_log("input device %s, %s is a pointer caps =%s%s%s\n",
			   device->devname, device->devnode,
			   device->caps & EVDEV_MOTION_ABS ? " absolute-motion" : "",
			   device->caps & EVDEV_MOTION_REL ? " relative-motion": "",
			   device->caps & EVDEV_BUTTON ? " button" : "");
	}
	if ((device->caps & EVDEV_KEYBOARD)) {
		if (weston_seat_init_keyboard(device->seat, NULL) < 0)
			return -1;
		weston_log("input device %s, %s is a keyboard\n",
			   device->devname, device->devnode);
	}
	if ((device->caps & EVDEV_TOUCH)) {
		weston_seat_init_touch(device->seat);
		weston_log("input device %s, %s is a touch device\n",
			   device->devname, device->devnode);
	}

	return 0;
}

示例#2

文件： evdev.c 项目： anarsoul/weston

static int
evdev_configure_device(struct evdev_device *device)
{
	struct input_absinfo absinfo;
	unsigned long ev_bits[NBITS(EV_MAX)];
	unsigned long abs_bits[NBITS(ABS_MAX)];
	unsigned long rel_bits[NBITS(REL_MAX)];
	unsigned long key_bits[NBITS(KEY_MAX)];
	int has_key, has_abs;
	unsigned int i;

	has_key = 0;
	has_abs = 0;
	device->caps = 0;

	ioctl(device->fd, EVIOCGBIT(0, sizeof(ev_bits)), ev_bits);
	if (TEST_BIT(ev_bits, EV_ABS)) {
		has_abs = 1;

		ioctl(device->fd, EVIOCGBIT(EV_ABS, sizeof(abs_bits)),
		      abs_bits);
		if (TEST_BIT(abs_bits, ABS_X)) {
			ioctl(device->fd, EVIOCGABS(ABS_X), &absinfo);
			device->abs.min_x = absinfo.minimum;
			device->abs.max_x = absinfo.maximum;
			device->caps |= EVDEV_MOTION_ABS;
		}
		if (TEST_BIT(abs_bits, ABS_Y)) {
			ioctl(device->fd, EVIOCGABS(ABS_Y), &absinfo);
			device->abs.min_y = absinfo.minimum;
			device->abs.max_y = absinfo.maximum;
			device->caps |= EVDEV_MOTION_ABS;
		}
		if (TEST_BIT(abs_bits, ABS_MT_SLOT)) {
			ioctl(device->fd, EVIOCGABS(ABS_MT_POSITION_X),
			      &absinfo);
			device->abs.min_x = absinfo.minimum;
			device->abs.max_x = absinfo.maximum;
			ioctl(device->fd, EVIOCGABS(ABS_MT_POSITION_Y),
			      &absinfo);
			device->abs.min_y = absinfo.minimum;
			device->abs.max_y = absinfo.maximum;
			device->is_mt = 1;
			device->mt.slot = 0;
			device->caps |= EVDEV_TOUCH;
		}
	}
	if (TEST_BIT(ev_bits, EV_REL)) {
		ioctl(device->fd, EVIOCGBIT(EV_REL, sizeof(rel_bits)),
		      rel_bits);
		if (TEST_BIT(rel_bits, REL_X) || TEST_BIT(rel_bits, REL_Y))
			device->caps |= EVDEV_MOTION_REL;
	}
	if (TEST_BIT(ev_bits, EV_KEY)) {
		has_key = 1;
		ioctl(device->fd, EVIOCGBIT(EV_KEY, sizeof(key_bits)),
		      key_bits);
		if (TEST_BIT(key_bits, BTN_TOOL_FINGER) &&
		    !TEST_BIT(key_bits, BTN_TOOL_PEN) &&
		    has_abs)
			device->dispatch = evdev_touchpad_create(device);
		for (i = KEY_ESC; i < KEY_MAX; i++) {
			if (i >= BTN_MISC && i < KEY_OK)
				continue;
			if (TEST_BIT(key_bits, i)) {
				device->caps |= EVDEV_KEYBOARD;
				break;
			}
		}
		for (i = BTN_MISC; i < KEY_OK; i++) {
			if (TEST_BIT(key_bits, i)) {
				device->caps |= EVDEV_BUTTON;
				break;
			}
		}
	}
	if (TEST_BIT(ev_bits, EV_LED)) {
		device->caps |= EVDEV_KEYBOARD;
	}

	/* This rule tries to catch accelerometer devices and opt out. We may
	 * want to adjust the protocol later adding a proper event for dealing
	 * with accelerometers and implement here accordingly */
	if (has_abs && !has_key && !device->is_mt) {
		weston_log("input device %s, %s "
			   "ignored: unsupported device type\n",
			   device->devname, device->devnode);
		return -1;
	}

	if ((device->caps &
	     (EVDEV_MOTION_ABS | EVDEV_MOTION_REL | EVDEV_BUTTON))) {
		weston_seat_init_pointer(device->seat);
		weston_log("input device %s, %s is a pointer caps =%s%s%s\n",
			   device->devname, device->devnode,
			   device->caps & EVDEV_MOTION_ABS ? " absolute-motion" : "",
			   device->caps & EVDEV_MOTION_REL ? " relative-motion": "",
			   device->caps & EVDEV_BUTTON ? " button" : "");
	}
	if ((device->caps & EVDEV_KEYBOARD)) {
		weston_seat_init_keyboard(device->seat, NULL);
		weston_log("input device %s, %s is a keyboard\n",
			   device->devname, device->devnode);
	}
	if ((device->caps & EVDEV_TOUCH)) {
		weston_seat_init_touch(device->seat);
		weston_log("input device %s, %s is a touch device\n",
			   device->devname, device->devnode);
	}

	return 0;
}