188 lines
7.1 KiB
Diff
188 lines
7.1 KiB
Diff
From 7f20a75e91bc5ffa203ed09f82834f0dd619efbe Mon Sep 17 00:00:00 2001
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From: Peter Hutterer <peter.hutterer@who-t.net>
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Date: Tue, 27 Mar 2012 12:18:46 +1000
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Subject: [PATCH evdev] Allow relative scroll valuators on absolute devices
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Special-case RHEL_WHEEL, RHEL_HWHEEL and REL_DIAL to add scroll valuators
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for those axes on top of the absolute axes.
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https://bugzilla.redhat.com/show_bug.cgi?id=805902
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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
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---
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src/evdev.c | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++++++----
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src/evdev.h | 3 +-
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2 files changed, 86 insertions(+), 6 deletions(-)
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diff --git a/src/evdev.c b/src/evdev.c
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index fc7ba88..e7b4850 100644
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--- a/src/evdev.c
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+++ b/src/evdev.c
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@@ -703,7 +703,9 @@ EvdevProcessRelativeMotionEvent(InputInfoPtr pInfo, struct input_event *ev)
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#endif
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default:
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/* Ignore EV_REL events if we never set up for them. */
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- if (!(pEvdev->flags & EVDEV_RELATIVE_EVENTS))
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+ if (!(pEvdev->flags & EVDEV_RELATIVE_EVENTS) &&
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+ ev->code != REL_WHEEL && ev->code != REL_DIAL &&
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+ ev->code != REL_HWHEEL)
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return;
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/* Handle mouse wheel emulation */
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@@ -712,7 +714,7 @@ EvdevProcessRelativeMotionEvent(InputInfoPtr pInfo, struct input_event *ev)
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pEvdev->rel_queued = 1;
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pEvdev->delta[ev->code] += value;
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- map = pEvdev->axis_map[ev->code];
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+ map = pEvdev->axis_map[ev->code + pEvdev->rel_offset];
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valuator_mask_set(pEvdev->vals, map, value);
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break;
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}
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@@ -1236,7 +1238,7 @@ is_blacklisted_axis(int axis)
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static int
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-EvdevAddAbsValuatorClass(DeviceIntPtr device)
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+EvdevAddAbsValuatorClass(DeviceIntPtr device, int want_scroll_axes)
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{
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InputInfoPtr pInfo;
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EvdevPtr pEvdev;
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@@ -1284,6 +1286,20 @@ EvdevAddAbsValuatorClass(DeviceIntPtr device)
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}
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}
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#endif
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+
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+#ifdef HAVE_SMOOTH_SCROLLING
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+ if (want_scroll_axes && EvdevBitIsSet(pEvdev->bitmask, EV_REL))
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+ {
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+ pEvdev->rel_offset = num_axes;
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+ if (EvdevBitIsSet(pEvdev->rel_bitmask, REL_WHEEL))
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+ num_axes++;
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+ if (EvdevBitIsSet(pEvdev->rel_bitmask, REL_HWHEEL))
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+ num_axes++;
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+ if (EvdevBitIsSet(pEvdev->rel_bitmask, REL_DIAL))
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+ num_axes++;
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+ }
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+#endif
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+
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if (num_axes + num_mt_axes > MAX_VALUATORS) {
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xf86IDrvMsg(pInfo, X_WARNING, "found %d axes, limiting to %d.\n", num_axes, MAX_VALUATORS);
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num_axes = MAX_VALUATORS;
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@@ -1373,6 +1389,20 @@ EvdevAddAbsValuatorClass(DeviceIntPtr device)
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i++;
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}
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+#ifdef HAVE_SMOOTH_SCROLLING
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+ if (want_scroll_axes)
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+ {
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+ int mapping = pEvdev->rel_offset;
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+
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+ if (EvdevBitIsSet(pEvdev->rel_bitmask, REL_HWHEEL))
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+ pEvdev->axis_map[pEvdev->rel_offset + REL_HWHEEL] = mapping++;
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+ if (EvdevBitIsSet(pEvdev->rel_bitmask, REL_DIAL))
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+ pEvdev->axis_map[pEvdev->rel_offset + REL_DIAL] = mapping++;
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+ if (EvdevBitIsSet(pEvdev->rel_bitmask, REL_WHEEL))
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+ pEvdev->axis_map[pEvdev->rel_offset + REL_WHEEL] = mapping++;
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+ }
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+#endif
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+
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EvdevInitAxesLabels(pEvdev, Absolute, pEvdev->num_vals + num_mt_axes, atoms);
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if (!InitValuatorClassDeviceStruct(device, num_axes + num_mt_axes, atoms,
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@@ -1467,6 +1497,51 @@ EvdevAddAbsValuatorClass(DeviceIntPtr device)
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}
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#endif
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+#ifdef HAVE_SMOOTH_SCROLLING
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+ if (want_scroll_axes)
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+ {
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+ int axidx;
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+ if (EvdevBitIsSet(pEvdev->rel_bitmask, REL_WHEEL))
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+ {
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+ axidx = pEvdev->rel_offset + REL_WHEEL;
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+ xf86InitValuatorAxisStruct(device,
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+ pEvdev->axis_map[axidx],
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+ atoms[pEvdev->axis_map[axidx]],
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+ NO_AXIS_LIMITS, NO_AXIS_LIMITS,
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+ 0, 0, 0, Relative);
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+ SetScrollValuator(device, pEvdev->axis_map[axidx],
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+ SCROLL_TYPE_VERTICAL, -1.0,
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+ SCROLL_FLAG_PREFERRED);
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+ }
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+
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+ if (EvdevBitIsSet(pEvdev->rel_bitmask, REL_HWHEEL))
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+ {
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+ axidx = pEvdev->rel_offset + REL_HWHEEL;
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+ xf86InitValuatorAxisStruct(device,
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+ pEvdev->axis_map[axidx],
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+ atoms[pEvdev->axis_map[axidx]],
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+ NO_AXIS_LIMITS, NO_AXIS_LIMITS,
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+ 0, 0, 0, Relative);
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+ SetScrollValuator(device, pEvdev->axis_map[axidx],
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+ SCROLL_TYPE_HORIZONTAL, 1.0,
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+ SCROLL_FLAG_NONE);
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+ }
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+
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+ if (EvdevBitIsSet(pEvdev->rel_bitmask, REL_DIAL))
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+ {
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+ axidx = pEvdev->rel_offset + REL_DIAL;
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+ xf86InitValuatorAxisStruct(device,
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+ pEvdev->axis_map[axidx],
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+ atoms[pEvdev->axis_map[axidx]],
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+ NO_AXIS_LIMITS, NO_AXIS_LIMITS,
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+ 0, 0, 0, Relative);
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+ SetScrollValuator(device, pEvdev->axis_map[axidx],
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+ SCROLL_TYPE_HORIZONTAL, 1.0,
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+ SCROLL_FLAG_NONE);
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+ }
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+ }
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+#endif
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+
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free(atoms);
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for (i = 0; i < ArrayLength(proximity_bits); i++)
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@@ -1696,12 +1771,16 @@ static void
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EvdevInitAnyValuators(DeviceIntPtr device, EvdevPtr pEvdev)
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{
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InputInfoPtr pInfo = device->public.devicePrivate;
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+ int rel_success = FALSE;
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if (pEvdev->flags & EVDEV_RELATIVE_EVENTS &&
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EvdevAddRelValuatorClass(device) == Success)
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+ {
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+ rel_success = TRUE;
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xf86IDrvMsg(pInfo, X_INFO, "initialized for relative axes.\n");
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+ }
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if (pEvdev->flags & EVDEV_ABSOLUTE_EVENTS &&
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- EvdevAddAbsValuatorClass(device) == Success)
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+ EvdevAddAbsValuatorClass(device, !rel_success) == Success)
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xf86IDrvMsg(pInfo, X_INFO, "initialized for absolute axes.\n");
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}
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@@ -1710,7 +1789,7 @@ EvdevInitAbsValuators(DeviceIntPtr device, EvdevPtr pEvdev)
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{
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InputInfoPtr pInfo = device->public.devicePrivate;
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- if (EvdevAddAbsValuatorClass(device) == Success) {
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+ if (EvdevAddAbsValuatorClass(device, TRUE) == Success) {
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xf86IDrvMsg(pInfo, X_INFO,"initialized for absolute axes.\n");
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} else {
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xf86IDrvMsg(pInfo, X_ERROR,"failed to initialize for absolute axes.\n");
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diff --git a/src/evdev.h b/src/evdev.h
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index c2f9246..8ea9d07 100644
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--- a/src/evdev.h
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+++ b/src/evdev.h
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@@ -154,7 +154,8 @@ typedef struct {
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int num_vals; /* number of valuators */
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int num_mt_vals; /* number of multitouch valuators */
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- int axis_map[max(ABS_CNT, REL_CNT)]; /* Map evdev <axis> to index */
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+ int axis_map[ABS_CNT + REL_CNT]; /* Map evdev <axis> to index */
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+ int rel_offset; /* offset for relative axes in absolute device */
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ValuatorMask *vals; /* new values coming in */
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ValuatorMask *old_vals; /* old values for calculating relative motion */
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ValuatorMask *prox; /* last values set while not in proximity */
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--
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1.7.10.4
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