[PATCH 1/9] evdev: use struct calibration for those kind of fields

[Tiago Vignatti]

No functional changes.

Signed-off-by: Tiago Vignatti <tiago.vignatti at intel.com>
---
 compositor/evdev.c |   32 +++++++++++++++++++-------------
 1 files changed, 19 insertions(+), 13 deletions(-)

diff --git a/compositor/evdev.c b/compositor/evdev.c
index f0cdf30..3f8b9ad 100644
--- a/compositor/evdev.c
+++ b/compositor/evdev.c
@@ -40,7 +40,13 @@ struct evdev_input_device {
 	int tool, new_x, new_y;
 	int base_x, base_y;
 	int fd;
-	int min_x, max_x, min_y, max_y;
+	struct {
+		int min_x;
+		int max_x;
+		int min_y;
+		int max_y;
+	} calibration;
+
 	int is_touchpad, old_x_value, old_y_value, reset_x_value, reset_y_value;
 };
 
@@ -100,13 +106,13 @@ evdev_process_absolute_motion(struct evdev_input_device *device,
 	switch (e->code) {
 	case ABS_X:
 		*absolute_event = device->tool;
-		*x = (value - device->min_x) * screen_width /
-			(device->max_x - device->min_x) + device->output->x;
+		*x = (value - device->calibration.min_x) * screen_width /
+			(device->calibration.max_x - device->calibration.min_x) + device->output->x;
 		break;
 	case ABS_Y:
 		*absolute_event = device->tool;
-		*y = (value - device->min_y) * screen_height /
-			(device->max_y - device->min_y) + device->output->y;
+		*y = (value - device->calibration.min_y) * screen_height /
+			(device->calibration.max_y - device->calibration.min_y) + device->output->y;
 		break;
 	}
 }
@@ -120,23 +126,23 @@ evdev_process_absolute_motion_touchpad(struct evdev_input_device *device,
 
 	switch (e->code) {
 	case ABS_X:
-		value -= device->min_x;
+		value -= device->calibration.min_x;
 		if (device->reset_x_value)
 			device->reset_x_value = 0;
 		else {
 			*dx = (value - device->old_x_value) * touchpad_speed /
-				(device->max_x - device->min_x);
+				(device->calibration.max_x - device->calibration.min_x);
 		}
 		device->old_x_value = value;
 		break;
 	case ABS_Y:
-		value -= device->min_y;
+		value -= device->calibration.min_y;
 		if (device->reset_y_value)
 			device->reset_y_value = 0;
 		else {
 			*dy = (value - device->old_y_value) * touchpad_speed /
 				/* maybe use x size here to have the same scale? */
-				(device->max_y - device->min_y);
+				(device->calibration.max_y - device->calibration.min_y);
 		}
 		device->old_y_value = value;
 		break;
@@ -249,13 +255,13 @@ evdev_configure_device(struct evdev_input_device *device)
 		      abs_bits);
 		if (TEST_BIT(abs_bits, ABS_X)) {
 			ioctl(device->fd, EVIOCGABS(ABS_X), &absinfo);
-			device->min_x = absinfo.minimum;
-			device->max_x = absinfo.maximum;
+			device->calibration.min_x = absinfo.minimum;
+			device->calibration.max_x = absinfo.maximum;
 		}
 		if (TEST_BIT(abs_bits, ABS_Y)) {
 			ioctl(device->fd, EVIOCGABS(ABS_Y), &absinfo);
-			device->min_y = absinfo.minimum;
-			device->max_y = absinfo.maximum;
+			device->calibration.min_y = absinfo.minimum;
+			device->calibration.max_y = absinfo.maximum;
 		}
 	}
 	if (TEST_BIT(ev_bits, EV_KEY)) {
-- 
1.7.5.4