From 11a56d4a176a2c5b2f8794147d4bafd88477b80b Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Tue, 24 Feb 2009 09:39:01 +1000 Subject: Split ReadInput into ReadInput and ProcessEvent. Signed-off-by: Peter Hutterer --- src/evdev.c | 345 +++++++++++++++++++++++++++++++----------------------------- 1 file changed, 177 insertions(+), 168 deletions(-) diff --git a/src/evdev.c b/src/evdev.c index 4af9c03..50ca103 100644 --- a/src/evdev.c +++ b/src/evdev.c @@ -332,20 +332,187 @@ EvdevReopenTimer(OsTimerPtr timer, CARD32 time, pointer arg) return 100; /* come back in 100 ms */ } +/** + * Take one input event and process it accordingly. + */ static void -EvdevReadInput(InputInfoPtr pInfo) +EvdevProcessEvent(InputInfoPtr pInfo, struct input_event *ev) { - struct input_event ev; - int len, value; - int dx, dy, tmp; - unsigned int abs; + static int dx, dy, tmp, value; + static unsigned int abs; unsigned int button; EvdevPtr pEvdev = pInfo->private; - dx = 0; - dy = 0; - tmp = 0; - abs = 0; + /* Get the signed value, earlier kernels had this as unsigned */ + value = ev->value; + + switch (ev->type) { + case EV_REL: + /* Handle mouse wheel emulation */ + if (EvdevWheelEmuFilterMotion(pInfo, ev)) + break; + + switch (ev->code) { + case REL_X: + dx += value; + break; + + case REL_Y: + dy += value; + break; + + case REL_WHEEL: + if (value > 0) + PostButtonClicks(pInfo, wheel_up_button, value); + else if (value < 0) + PostButtonClicks(pInfo, wheel_down_button, -value); + break; + + case REL_DIAL: + case REL_HWHEEL: + if (value > 0) + PostButtonClicks(pInfo, wheel_right_button, value); + else if (value < 0) + PostButtonClicks(pInfo, wheel_left_button, -value); + break; + } + break; + + case EV_ABS: + if (ev->code > ABS_MAX) + break; + pEvdev->vals[pEvdev->axis_map[ev->code]] = value; + abs = 1; + break; + + case EV_KEY: + /* don't repeat mouse buttons */ + if (ev->code >= BTN_MOUSE && ev->code < KEY_OK) + if (value == 2) + break; + + switch (ev->code) { + case BTN_TOUCH: + case BTN_TOOL_PEN: + case BTN_TOOL_RUBBER: + case BTN_TOOL_BRUSH: + case BTN_TOOL_PENCIL: + case BTN_TOOL_AIRBRUSH: + case BTN_TOOL_FINGER: + case BTN_TOOL_MOUSE: + case BTN_TOOL_LENS: + pEvdev->tool = value ? ev->code : 0; + if (!(pEvdev->flags & EVDEV_TOUCHSCREEN)) + break; + /* Treat BTN_TOUCH from devices that only have BTN_TOUCH as + * BTN_LEFT. */ + ev->code = BTN_LEFT; + /* Intentional fallthrough! */ + + default: + button = EvdevUtilButtonEventToButtonNumber(pEvdev, ev->code); + + /* Handle drag lock */ + if (EvdevDragLockFilterEvent(pInfo, button, value)) + break; + + if (EvdevWheelEmuFilterButton(pInfo, button, value)) + break; + + if (EvdevMBEmuFilterEvent(pInfo, button, value)) + break; + + if (button) + xf86PostButtonEvent(pInfo->dev, 0, button, value, 0, 0); + else + PostKbdEvent(pInfo, ev, value); + break; + } + break; + + case EV_SYN: + /* convert to relative motion for touchpads */ + if (abs && (pEvdev->flags & EVDEV_TOUCHPAD)) { + abs = 0; + if (pEvdev->tool) { /* meaning, touch is active */ + if (pEvdev->old_vals[0] != -1) + dx = pEvdev->vals[0] - pEvdev->old_vals[0]; + if (pEvdev->old_vals[1] != -1) + dy = pEvdev->vals[1] - pEvdev->old_vals[1]; + pEvdev->old_vals[0] = pEvdev->vals[0]; + pEvdev->old_vals[1] = pEvdev->vals[1]; + } else { + pEvdev->old_vals[0] = pEvdev->old_vals[1] = -1; + } + } + + if (dx != 0 || dy != 0) { + if (pEvdev->swap_axes) { + tmp = dx; + dx = dy; + dy = tmp; + } + if (pEvdev->invert_x) + dx *= -1; + if (pEvdev->invert_y) + dy *= -1; + xf86PostMotionEvent(pInfo->dev, FALSE, 0, 2, dx, dy); + } + + /* + * Some devices only generate valid abs coords when BTN_DIGI is + * pressed. On wacom tablets, this means that the pen is in + * proximity of the tablet. After the pen is removed, BTN_DIGI is + * released, and a (0, 0) absolute event is generated. Checking + * pEvdev->digi here, lets us ignore that event. pEvdev is + * initialized to 1 so devices that doesn't use this scheme still + * just works. + */ + if (abs && pEvdev->tool) { + int v[MAX_VALUATORS]; + + memcpy(v, pEvdev->vals, sizeof(int) * pEvdev->num_vals); + if (pEvdev->flags & EVDEV_CALIBRATED) + { + v[0] = xf86ScaleAxis(v[0], + pEvdev->absinfo[ABS_X].maximum, + pEvdev->absinfo[ABS_X].minimum, + pEvdev->calibration.max_x, pEvdev->calibration.min_x); + v[1] = xf86ScaleAxis(v[1], + pEvdev->absinfo[ABS_Y].maximum, + pEvdev->absinfo[ABS_Y].minimum, + pEvdev->calibration.max_y, pEvdev->calibration.min_y); + } + + if (pEvdev->swap_axes) { + int tmp = v[0]; + v[0] = v[1]; + v[1] = tmp; + } + + if (pEvdev->invert_x) + v[0] = (pEvdev->absinfo[ABS_X].maximum - v[0] + + pEvdev->absinfo[ABS_X].minimum); + if (pEvdev->invert_y) + v[1] = (pEvdev->absinfo[ABS_Y].maximum - v[1] + + pEvdev->absinfo[ABS_Y].minimum); + + xf86PostMotionEventP(pInfo->dev, TRUE, 0, pEvdev->num_vals, v); + } + + dx = 0; + dy = 0; + tmp = 0; + abs = 0; + } +} + +static void +EvdevReadInput(InputInfoPtr pInfo) +{ + struct input_event ev; + int len; + EvdevPtr pEvdev = pInfo->private; while (1) { len = read(pInfo->fd, &ev, sizeof ev); @@ -368,165 +535,7 @@ EvdevReadInput(InputInfoPtr pInfo) break; } - - /* Get the signed value, earlier kernels had this as unsigned */ - value = ev.value; - - switch (ev.type) { - case EV_REL: - /* Handle mouse wheel emulation */ - if (EvdevWheelEmuFilterMotion(pInfo, &ev)) - break; - - switch (ev.code) { - case REL_X: - dx += value; - break; - - case REL_Y: - dy += value; - break; - - case REL_WHEEL: - if (value > 0) - PostButtonClicks(pInfo, wheel_up_button, value); - else if (value < 0) - PostButtonClicks(pInfo, wheel_down_button, -value); - break; - - case REL_DIAL: - case REL_HWHEEL: - if (value > 0) - PostButtonClicks(pInfo, wheel_right_button, value); - else if (value < 0) - PostButtonClicks(pInfo, wheel_left_button, -value); - break; - } - break; - - case EV_ABS: - if (ev.code > ABS_MAX) - break; - pEvdev->vals[pEvdev->axis_map[ev.code]] = value; - abs = 1; - break; - - case EV_KEY: - /* don't repeat mouse buttons */ - if (ev.code >= BTN_MOUSE && ev.code < KEY_OK) - if (value == 2) - break; - - switch (ev.code) { - case BTN_TOUCH: - case BTN_TOOL_PEN: - case BTN_TOOL_RUBBER: - case BTN_TOOL_BRUSH: - case BTN_TOOL_PENCIL: - case BTN_TOOL_AIRBRUSH: - case BTN_TOOL_FINGER: - case BTN_TOOL_MOUSE: - case BTN_TOOL_LENS: - pEvdev->tool = value ? ev.code : 0; - if (!(pEvdev->flags & EVDEV_TOUCHSCREEN)) - break; - /* Treat BTN_TOUCH from devices that only have BTN_TOUCH as - * BTN_LEFT. */ - ev.code = BTN_LEFT; - /* Intentional fallthrough! */ - - default: - button = EvdevUtilButtonEventToButtonNumber(pEvdev, ev.code); - - /* Handle drag lock */ - if (EvdevDragLockFilterEvent(pInfo, button, value)) - break; - - if (EvdevWheelEmuFilterButton(pInfo, button, value)) - break; - - if (EvdevMBEmuFilterEvent(pInfo, button, value)) - break; - - if (button) - xf86PostButtonEvent(pInfo->dev, 0, button, value, 0, 0); - else - PostKbdEvent(pInfo, &ev, value); - break; - } - break; - - case EV_SYN: - /* convert to relative motion for touchpads */ - if (abs && (pEvdev->flags & EVDEV_TOUCHPAD)) { - abs = 0; - if (pEvdev->tool) { /* meaning, touch is active */ - if (pEvdev->old_vals[0] != -1) - dx = pEvdev->vals[0] - pEvdev->old_vals[0]; - if (pEvdev->old_vals[1] != -1) - dy = pEvdev->vals[1] - pEvdev->old_vals[1]; - pEvdev->old_vals[0] = pEvdev->vals[0]; - pEvdev->old_vals[1] = pEvdev->vals[1]; - } else { - pEvdev->old_vals[0] = pEvdev->old_vals[1] = -1; - } - } - - if (dx != 0 || dy != 0) { - if (pEvdev->swap_axes) { - tmp = dx; - dx = dy; - dy = tmp; - } - if (pEvdev->invert_x) - dx *= -1; - if (pEvdev->invert_y) - dy *= -1; - xf86PostMotionEvent(pInfo->dev, FALSE, 0, 2, dx, dy); - } - - /* - * Some devices only generate valid abs coords when BTN_DIGI is - * pressed. On wacom tablets, this means that the pen is in - * proximity of the tablet. After the pen is removed, BTN_DIGI is - * released, and a (0, 0) absolute event is generated. Checking - * pEvdev->digi here, lets us ignore that event. pEvdev is - * initialized to 1 so devices that doesn't use this scheme still - * just works. - */ - if (abs && pEvdev->tool) { - int v[MAX_VALUATORS]; - - memcpy(v, pEvdev->vals, sizeof(int) * pEvdev->num_vals); - if (pEvdev->flags & EVDEV_CALIBRATED) - { - v[0] = xf86ScaleAxis(v[0], - pEvdev->absinfo[ABS_X].maximum, - pEvdev->absinfo[ABS_X].minimum, - pEvdev->calibration.max_x, pEvdev->calibration.min_x); - v[1] = xf86ScaleAxis(v[1], - pEvdev->absinfo[ABS_Y].maximum, - pEvdev->absinfo[ABS_Y].minimum, - pEvdev->calibration.max_y, pEvdev->calibration.min_y); - } - - if (pEvdev->swap_axes) { - int tmp = v[0]; - v[0] = v[1]; - v[1] = tmp; - } - - if (pEvdev->invert_x) - v[0] = (pEvdev->absinfo[ABS_X].maximum - v[0] + - pEvdev->absinfo[ABS_X].minimum); - if (pEvdev->invert_y) - v[1] = (pEvdev->absinfo[ABS_Y].maximum - v[1] + - pEvdev->absinfo[ABS_Y].minimum); - - xf86PostMotionEventP(pInfo->dev, TRUE, 0, pEvdev->num_vals, v); - } - return; - } + EvdevProcessEvent(pInfo, &ev); } } -- cgit v1.2.1