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gui/SOURCES/0005-xwayland-Handle-tablet...

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From 4354336014ca0c29270a6cdf83e9f9e5fe16080e Mon Sep 17 00:00:00 2001
From: Jason Gerecke <killertofu@gmail.com>
Date: Fri, 14 Oct 2016 14:31:46 -0700
Subject: [PATCH xserver 05/12] xwayland: Handle tablet_tool events
Translates Wayland tablet events into corresponding X11 tablet events. As
with the prior commit, these events are modeled after those created by the
xf86-input-wacom driver to maximize compatibility with existing applications.
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
Signed-off-by: Carlos Garnacho <carlosg@gnome.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Ping Cheng <ping.cheng@wacom.com>
(cherry picked from commit 8a1defcc634daddbb3570519d69ec5c9e39a8b56)
---
hw/xwayland/xwayland-input.c | 313 +++++++++++++++++++++++++++++++++++++++++++
hw/xwayland/xwayland.h | 9 ++
2 files changed, 322 insertions(+)
diff --git a/hw/xwayland/xwayland-input.c b/hw/xwayland/xwayland-input.c
index 64655de5f..142862f7e 100644
--- a/hw/xwayland/xwayland-input.c
+++ b/hw/xwayland/xwayland-input.c
@@ -1331,6 +1331,317 @@ static const struct zwp_tablet_v2_listener tablet_listener = {
};
static void
+tablet_tool_receive_type(void *data, struct zwp_tablet_tool_v2 *tool,
+ uint32_t type)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ struct xwl_seat *xwl_seat = xwl_tablet_tool->seat;
+
+ switch (type) {
+ case ZWP_TABLET_TOOL_V2_TYPE_ERASER:
+ xwl_tablet_tool->xdevice = xwl_seat->eraser;
+ break;
+ case ZWP_TABLET_TOOL_V2_TYPE_MOUSE:
+ case ZWP_TABLET_TOOL_V2_TYPE_LENS:
+ xwl_tablet_tool->xdevice = xwl_seat->puck;
+ break;
+ default:
+ xwl_tablet_tool->xdevice = xwl_seat->stylus;
+ break;
+ }
+}
+
+static void
+tablet_tool_receive_hardware_serial(void *data, struct zwp_tablet_tool_v2 *tool,
+ uint32_t hi, uint32_t low)
+{
+}
+
+static void
+tablet_tool_receive_hardware_id_wacom(void *data, struct zwp_tablet_tool_v2 *tool,
+ uint32_t hi, uint32_t low)
+{
+}
+
+static void
+tablet_tool_receive_capability(void *data, struct zwp_tablet_tool_v2 *tool,
+ uint32_t capability)
+{
+}
+
+static void
+tablet_tool_receive_done(void *data, struct zwp_tablet_tool_v2 *tool)
+{
+}
+
+static void
+tablet_tool_receive_removed(void *data, struct zwp_tablet_tool_v2 *tool)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+
+ xorg_list_del(&xwl_tablet_tool->link);
+ zwp_tablet_tool_v2_destroy(tool);
+ free(xwl_tablet_tool);
+}
+
+static void
+tablet_tool_proximity_in(void *data, struct zwp_tablet_tool_v2 *tool,
+ uint32_t serial, struct zwp_tablet_v2 *tablet,
+ struct wl_surface *wl_surface)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ struct xwl_seat *xwl_seat = xwl_tablet_tool->seat;
+
+ /* There's a race here where if we create and then immediately
+ * destroy a surface, we might end up in a state where the Wayland
+ * compositor sends us an event for a surface that doesn't exist.
+ *
+ * Don't process enter events in this case.
+ *
+ * see pointer_handle_enter()
+ */
+ if (wl_surface == NULL)
+ return;
+
+ xwl_seat->focus_window = wl_surface_get_user_data(wl_surface);
+}
+
+static void
+tablet_tool_proximity_out(void *data, struct zwp_tablet_tool_v2 *tool)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ struct xwl_seat *xwl_seat = xwl_tablet_tool->seat;
+
+ xwl_seat->focus_window = NULL;
+
+ xwl_tablet_tool->pressure = 0;
+ xwl_tablet_tool->tilt_x = 0;
+ xwl_tablet_tool->tilt_y = 0;
+ xwl_tablet_tool->rotation = 0;
+ xwl_tablet_tool->slider = 0;
+}
+
+static void
+tablet_tool_down(void *data, struct zwp_tablet_tool_v2 *tool, uint32_t serial)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ struct xwl_seat *xwl_seat = xwl_tablet_tool->seat;
+ ValuatorMask mask;
+
+ xwl_seat->xwl_screen->serial = serial;
+
+ valuator_mask_zero(&mask);
+ QueuePointerEvents(xwl_tablet_tool->xdevice, ButtonPress, 1, 0, &mask);
+}
+
+static void
+tablet_tool_up(void *data, struct zwp_tablet_tool_v2 *tool)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ ValuatorMask mask;
+
+ valuator_mask_zero(&mask);
+ QueuePointerEvents(xwl_tablet_tool->xdevice, ButtonRelease, 1, 0, &mask);
+}
+
+static void
+tablet_tool_motion(void *data, struct zwp_tablet_tool_v2 *tool,
+ wl_fixed_t x, wl_fixed_t y)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ struct xwl_seat *xwl_seat = xwl_tablet_tool->seat;
+ int32_t dx, dy;
+ int sx = wl_fixed_to_int(x);
+ int sy = wl_fixed_to_int(y);
+
+ if (!xwl_seat->focus_window)
+ return;
+
+ dx = xwl_seat->focus_window->window->drawable.x;
+ dy = xwl_seat->focus_window->window->drawable.y;
+
+ xwl_tablet_tool->x = dx + sx;
+ xwl_tablet_tool->y = dy + sy;
+}
+
+static void
+tablet_tool_pressure(void *data, struct zwp_tablet_tool_v2 *tool,
+ uint32_t pressure)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ struct xwl_seat *xwl_seat = xwl_tablet_tool->seat;
+
+ if (!xwl_seat->focus_window)
+ return;
+
+ /* normalized to 65535 already */
+ xwl_tablet_tool->pressure = pressure;
+}
+
+static void
+tablet_tool_distance(void *data, struct zwp_tablet_tool_v2 *tool,
+ uint32_t distance_raw)
+{
+}
+
+static void
+tablet_tool_tilt(void *data, struct zwp_tablet_tool_v2 *tool,
+ wl_fixed_t tilt_x, wl_fixed_t tilt_y)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ struct xwl_seat *xwl_seat = xwl_tablet_tool->seat;
+
+ if (!xwl_seat->focus_window)
+ return;
+
+ xwl_tablet_tool->tilt_x = wl_fixed_to_double(tilt_x);
+ xwl_tablet_tool->tilt_y = wl_fixed_to_double(tilt_y);
+}
+
+static void
+tablet_tool_rotation(void *data, struct zwp_tablet_tool_v2 *tool,
+ wl_fixed_t angle)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ struct xwl_seat *xwl_seat = xwl_tablet_tool->seat;
+ double rotation = wl_fixed_to_double(angle);
+
+ if (!xwl_seat->focus_window)
+ return;
+
+ /* change origin (buttons facing right [libinput +90 degrees]) and
+ * scaling (5 points per degree) to match wacom driver behavior
+ */
+ rotation = remainderf(rotation + 90.0f, 360.0f);
+ rotation *= 5.0f;
+ xwl_tablet_tool->rotation = rotation;
+}
+
+static void
+tablet_tool_slider(void *data, struct zwp_tablet_tool_v2 *tool,
+ int32_t position_raw)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ struct xwl_seat *xwl_seat = xwl_tablet_tool->seat;
+ float position = position_raw / 65535.0;
+
+ if (!xwl_seat->focus_window)
+ return;
+
+ xwl_tablet_tool->slider = (position * 1799.0f) - 900.0f;
+}
+
+static void
+tablet_tool_wheel(void *data, struct zwp_tablet_tool_v2 *tool,
+ wl_fixed_t degrees, int32_t clicks)
+{
+}
+
+static void
+tablet_tool_button_state(void *data, struct zwp_tablet_tool_v2 *tool,
+ uint32_t serial, uint32_t button, uint32_t state)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ struct xwl_seat *xwl_seat = xwl_tablet_tool->seat;
+ int xbtn = 0;
+ ValuatorMask mask;
+
+ /* BTN_0 .. BTN_9 */
+ if (button >= 0x100 && button <= 0x109) {
+ xbtn = button - 0x100 + 1;
+ }
+ /* BTN_A .. BTN_Z */
+ else if (button >= 0x130 && button <= 0x135) {
+ xbtn = button - 0x130 + 10;
+ }
+ /* BTN_BASE .. BTN_BASE6 */
+ else if (button >= 0x126 && button <= 0x12b) {
+ xbtn = button - 0x126 + 16;
+ }
+ else {
+ switch (button) {
+ case 0x110: /* BTN_LEFT */
+ case 0x14a: /* BTN_TOUCH */
+ xbtn = 1;
+ break;
+
+ case 0x112: /* BTN_MIDDLE */
+ case 0x14b: /* BTN_STYLUS */
+ xbtn = 2;
+ break;
+
+ case 0x111: /* BTN_RIGHT */
+ case 0x14c: /* BTN_STYLUS2 */
+ xbtn = 3;
+ break;
+
+ case 0x113: /* BTN_SIDE */
+ case 0x116: /* BTN_BACK */
+ xbtn = 8;
+ break;
+
+ case 0x114: /* BTN_EXTRA */
+ case 0x115: /* BTN_FORWARD */
+ xbtn = 9;
+ break;
+ }
+ }
+
+ if (!xbtn) {
+ ErrorF("unknown tablet button number %d\n", button);
+ return;
+ }
+
+ xwl_seat->xwl_screen->serial = serial;
+
+ valuator_mask_zero(&mask);
+ QueuePointerEvents(xwl_tablet_tool->xdevice,
+ state ? ButtonPress : ButtonRelease, xbtn, 0, &mask);
+}
+
+static void
+tablet_tool_frame(void *data, struct zwp_tablet_tool_v2 *tool, uint32_t time)
+{
+ struct xwl_tablet_tool *xwl_tablet_tool = data;
+ ValuatorMask mask;
+
+ valuator_mask_zero(&mask);
+ valuator_mask_set(&mask, 0, xwl_tablet_tool->x);
+ valuator_mask_set(&mask, 1, xwl_tablet_tool->y);
+ valuator_mask_set(&mask, 2, xwl_tablet_tool->pressure);
+ valuator_mask_set(&mask, 3, xwl_tablet_tool->tilt_x);
+ valuator_mask_set(&mask, 4, xwl_tablet_tool->tilt_y);
+ valuator_mask_set(&mask, 5, xwl_tablet_tool->rotation + xwl_tablet_tool->slider);
+
+ /* FIXME: Store button mask in xwl_tablet_tool and send events *HERE* if
+ changed */
+ QueuePointerEvents(xwl_tablet_tool->xdevice, MotionNotify, 0,
+ POINTER_ABSOLUTE | POINTER_SCREEN, &mask);
+}
+
+static const struct zwp_tablet_tool_v2_listener tablet_tool_listener = {
+ tablet_tool_receive_type,
+ tablet_tool_receive_hardware_serial,
+ tablet_tool_receive_hardware_id_wacom,
+ tablet_tool_receive_capability,
+ tablet_tool_receive_done,
+ tablet_tool_receive_removed,
+ tablet_tool_proximity_in,
+ tablet_tool_proximity_out,
+ tablet_tool_down,
+ tablet_tool_up,
+ tablet_tool_motion,
+ tablet_tool_pressure,
+ tablet_tool_distance,
+ tablet_tool_tilt,
+ tablet_tool_rotation,
+ tablet_tool_slider,
+ tablet_tool_wheel,
+ tablet_tool_button_state,
+ tablet_tool_frame
+};
+
+static void
tablet_seat_handle_add_tablet(void *data, struct zwp_tablet_seat_v2 *tablet_seat,
struct zwp_tablet_v2 *tablet)
{
@@ -1368,6 +1679,8 @@ tablet_seat_handle_add_tool(void *data, struct zwp_tablet_seat_v2 *tablet_seat,
xwl_tablet_tool->seat = xwl_seat;
xorg_list_add(&xwl_tablet_tool->link, &xwl_seat->tablet_tools);
+
+ zwp_tablet_tool_v2_add_listener(tool, &tablet_tool_listener, xwl_tablet_tool);
}
static void
diff --git a/hw/xwayland/xwayland.h b/hw/xwayland/xwayland.h
index e7e62882b..fb9ac4804 100644
--- a/hw/xwayland/xwayland.h
+++ b/hw/xwayland/xwayland.h
@@ -193,6 +193,15 @@ struct xwl_tablet_tool {
struct xorg_list link;
struct zwp_tablet_tool_v2 *tool;
struct xwl_seat *seat;
+
+ DeviceIntPtr xdevice;
+ uint32_t x;
+ uint32_t y;
+ uint32_t pressure;
+ float tilt_x;
+ float tilt_y;
+ float rotation;
+ float slider;
};
struct xwl_tablet_pad {
--
2.13.5