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clutter: Drop ClutterInputDevice axis API

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Most of this comes from X11 peculiarities that were open coded in
the Clutter ABI. We don't need this except in X11, so move this axis
handling there.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1403>
This commit is contained in:
Carlos Garnacho 2020-11-19 01:15:42 +01:00 committed by Marge Bot
parent 5689a843c7
commit d7d92b0ddc
6 changed files with 158 additions and 337 deletions
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29
clutter/clutter/clutter-input-device-private.h
View File

@ -32,19 +32,6 @@
G_BEGIN_DECLS
typedef struct _ClutterAxisInfo
{
ClutterInputAxis axis;
double min_axis;
double max_axis;
double min_value;
double max_value;
double resolution;
} ClutterAxisInfo;
typedef struct _ClutterScrollInfo
{
guint axis_id;
@ -111,8 +98,6 @@ struct _ClutterInputDevice
uint32_t previous_time;
int previous_button_number;
GArray *axes;
GArray *scroll_info;
char *vendor_id;
@ -142,20 +127,6 @@ ClutterActor * clutter_input_device_update (ClutterInputDevice *device,
CLUTTER_EXPORT
void _clutter_input_device_remove_event_sequence (ClutterInputDevice *device,
ClutterEvent *event);
CLUTTER_EXPORT
gboolean _clutter_input_device_translate_axis (ClutterInputDevice *device,
guint index_,
gdouble value,
gdouble *axis_value);
CLUTTER_EXPORT
guint _clutter_input_device_add_axis (ClutterInputDevice *device,
ClutterInputAxis axis,
gdouble minimum,
gdouble maximum,
gdouble resolution);
CLUTTER_EXPORT
void _clutter_input_device_reset_axes (ClutterInputDevice *device);
CLUTTER_EXPORT
void _clutter_input_device_add_scroll_info (ClutterInputDevice *device,

254
clutter/clutter/clutter-input-device.c
View File

@ -61,8 +61,6 @@ enum
PROP_HAS_CURSOR,
PROP_N_AXES,
PROP_VENDOR_ID,
PROP_PRODUCT_ID,
@ -97,7 +95,6 @@ clutter_input_device_dispose (GObject *gobject)
if (device->accessibility_virtual_device)
g_clear_object (&device->accessibility_virtual_device);
g_clear_pointer (&device->axes, g_array_unref);
g_clear_pointer (&device->scroll_info, g_array_unref);
g_clear_pointer (&device->touch_sequence_actors, g_hash_table_unref);
@ -236,10 +233,6 @@ clutter_input_device_get_property (GObject *gobject,
g_value_set_boolean (value, self->has_cursor);
break;
case PROP_N_AXES:
g_value_set_uint (value, clutter_input_device_get_n_axes (self));
break;
case PROP_VENDOR_ID:
g_value_set_string (value, self->vendor_id);
break;
@ -347,21 +340,6 @@ clutter_input_device_class_init (ClutterInputDeviceClass *klass)
FALSE,
CLUTTER_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
/**
* ClutterInputDevice:n-axes:
*
* The number of axes of the device.
*
* Since: 1.6
*/
obj_props[PROP_N_AXES] =
g_param_spec_uint ("n-axes",
P_("Number of Axes"),
P_("The number of axes on the device"),
0, G_MAXUINT,
0,
CLUTTER_PARAM_READABLE);
/**
* ClutterInputDevice:backend:
*
@ -800,236 +778,6 @@ clutter_input_device_get_device_mode (ClutterInputDevice *device)
return device->device_mode;
}
/*< private >
* clutter_input_device_reset_axes:
* @device: a #ClutterInputDevice
*
* Resets the axes on @device
*/
void
_clutter_input_device_reset_axes (ClutterInputDevice *device)
{
if (device->axes != NULL)
{
g_array_free (device->axes, TRUE);
device->axes = NULL;
g_object_notify_by_pspec (G_OBJECT (device), obj_props[PROP_N_AXES]);
}
}
/*< private >
* clutter_input_device_add_axis:
* @device: a #ClutterInputDevice
* @axis: the axis type
* @minimum: the minimum axis value
* @maximum: the maximum axis value
* @resolution: the axis resolution
*
* Adds an axis of type @axis on @device.
*/
guint
_clutter_input_device_add_axis (ClutterInputDevice *device,
ClutterInputAxis axis,
gdouble minimum,
gdouble maximum,
gdouble resolution)
{
ClutterAxisInfo info;
guint pos;
if (device->axes == NULL)
device->axes = g_array_new (FALSE, TRUE, sizeof (ClutterAxisInfo));
info.axis = axis;
info.min_value = minimum;
info.max_value = maximum;
info.resolution = resolution;
switch (axis)
{
case CLUTTER_INPUT_AXIS_X:
case CLUTTER_INPUT_AXIS_Y:
info.min_axis = 0;
info.max_axis = 0;
break;
case CLUTTER_INPUT_AXIS_XTILT:
case CLUTTER_INPUT_AXIS_YTILT:
info.min_axis = -1;
info.max_axis = 1;
break;
default:
info.min_axis = 0;
info.max_axis = 1;
break;
}
device->axes = g_array_append_val (device->axes, info);
pos = device->axes->len - 1;
g_object_notify_by_pspec (G_OBJECT (device), obj_props[PROP_N_AXES]);
return pos;
}
/*< private >
* clutter_input_translate_axis:
* @device: a #ClutterInputDevice
* @index_: the index of the axis
* @gint: the absolute value of the axis
* @axis_value: (out): the translated value of the axis
*
* Performs a conversion from the absolute value of the axis
* to a relative value.
*
* The axis at @index_ must not be %CLUTTER_INPUT_AXIS_X or
* %CLUTTER_INPUT_AXIS_Y.
*
* Return value: %TRUE if the conversion was successful
*/
gboolean
_clutter_input_device_translate_axis (ClutterInputDevice *device,
guint index_,
gdouble value,
gdouble *axis_value)
{
ClutterAxisInfo *info;
gdouble width;
gdouble real_value;
if (device->axes == NULL || index_ >= device->axes->len)
return FALSE;
info = &g_array_index (device->axes, ClutterAxisInfo, index_);
if (info->axis == CLUTTER_INPUT_AXIS_X ||
info->axis == CLUTTER_INPUT_AXIS_Y)
return FALSE;
if (fabs (info->max_value - info->min_value) < 0.0000001)
return FALSE;
width = info->max_value - info->min_value;
real_value = (info->max_axis * (value - info->min_value)
+ info->min_axis * (info->max_value - value))
/ width;
if (axis_value)
*axis_value = real_value;
return TRUE;
}
/**
* clutter_input_device_get_axis:
* @device: a #ClutterInputDevice
* @index_: the index of the axis
*
* Retrieves the type of axis on @device at the given index.
*
* Return value: the axis type
*
* Since: 1.6
*/
ClutterInputAxis
clutter_input_device_get_axis (ClutterInputDevice *device,
guint index_)
{
ClutterAxisInfo *info;
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device),
CLUTTER_INPUT_AXIS_IGNORE);
if (device->axes == NULL)
return CLUTTER_INPUT_AXIS_IGNORE;
if (index_ >= device->axes->len)
return CLUTTER_INPUT_AXIS_IGNORE;
info = &g_array_index (device->axes, ClutterAxisInfo, index_);
return info->axis;
}
/**
* clutter_input_device_get_axis_value:
* @device: a #ClutterInputDevice
* @axes: (array): an array of axes values, typically
* coming from clutter_event_get_axes()
* @axis: the axis to extract
* @value: (out): return location for the axis value
*
* Extracts the value of the given @axis of a #ClutterInputDevice from
* an array of axis values.
*
* An example of typical usage for this function is:
*
* |[
* ClutterInputDevice *device = clutter_event_get_device (event);
* gdouble *axes = clutter_event_get_axes (event, NULL);
* gdouble pressure_value = 0;
*
* clutter_input_device_get_axis_value (device, axes,
* CLUTTER_INPUT_AXIS_PRESSURE,
* &pressure_value);
* ]|
*
* Return value: %TRUE if the value was set, and %FALSE otherwise
*
* Since: 1.6
*/
gboolean
clutter_input_device_get_axis_value (ClutterInputDevice *device,
gdouble *axes,
ClutterInputAxis axis,
gdouble *value)
{
gint i;
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), FALSE);
g_return_val_if_fail (device->axes != NULL, FALSE);
for (i = 0; i < device->axes->len; i++)
{
ClutterAxisInfo *info;
info = &g_array_index (device->axes, ClutterAxisInfo, i);
if (info->axis == axis)
{
if (value)
*value = axes[i];
return TRUE;
}
}
return FALSE;
}
/**
* clutter_input_device_get_n_axes:
* @device: a #ClutterInputDevice
*
* Retrieves the number of axes available on @device.
*
* Return value: the number of axes on the device
*
* Since: 1.6
*/
guint
clutter_input_device_get_n_axes (ClutterInputDevice *device)
{
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), 0);
if (device->axes != NULL)
return device->axes->len;
return 0;
}
/*< private >
* clutter_input_device_remove_sequence:
* @device: a #ClutterInputDevice
@ -1109,7 +857,6 @@ _clutter_input_device_add_scroll_info (ClutterInputDevice *device,
ClutterScrollInfo info;
g_return_if_fail (CLUTTER_IS_INPUT_DEVICE (device));
g_return_if_fail (index_ < clutter_input_device_get_n_axes (device));
info.axis_id = index_;
info.direction = direction;
@ -1136,7 +883,6 @@ _clutter_input_device_get_scroll_delta (ClutterInputDevice *device,
guint i;
g_return_val_if_fail (CLUTTER_IS_INPUT_DEVICE (device), FALSE);
g_return_val_if_fail (index_ < clutter_input_device_get_n_axes (device), FALSE);
if (device->scroll_info == NULL)
return FALSE;

134
src/backends/x11/meta-input-device-x11.c
View File

@ -37,11 +37,26 @@ struct _MetaInputDeviceX11
float current_x;
float current_y;
GArray *axes;
#ifdef HAVE_LIBWACOM
GArray *group_modes;
#endif
};
typedef struct _MetaX11AxisInfo
{
ClutterInputAxis axis;
double min_axis;
double max_axis;
double min_value;
double max_value;
double resolution;
} MetaX11AxisInfo;
struct _MetaInputDeviceX11Class
{
ClutterInputDeviceClass device_class;
@ -133,6 +148,8 @@ meta_input_device_x11_finalize (GObject *object)
{
MetaInputDeviceX11 *device_xi2 = META_INPUT_DEVICE_X11 (object);
g_clear_pointer (&device_xi2->axes, g_array_unref);
#ifdef HAVE_LIBWACOM
if (device_xi2->group_modes)
g_array_unref (device_xi2->group_modes);
@ -460,6 +477,123 @@ meta_input_device_x11_get_device_id (ClutterInputDevice *device)
return device_xi2->device_id;
}
void
meta_input_device_x11_reset_axes (ClutterInputDevice *device)
{
MetaInputDeviceX11 *device_x11 = META_INPUT_DEVICE_X11 (device);
g_clear_pointer (&device_x11->axes, g_array_unref);
}
int
meta_input_device_x11_add_axis (ClutterInputDevice *device,
ClutterInputAxis axis,
double minimum,
double maximum,
double resolution)
{
MetaInputDeviceX11 *device_x11 = META_INPUT_DEVICE_X11 (device);
MetaX11AxisInfo info;
guint pos;
if (device_x11->axes == NULL)
device_x11->axes = g_array_new (FALSE, TRUE, sizeof (MetaX11AxisInfo));
info.axis = axis;
info.min_value = minimum;
info.max_value = maximum;
info.resolution = resolution;
switch (axis)
{
case CLUTTER_INPUT_AXIS_X:
case CLUTTER_INPUT_AXIS_Y:
info.min_axis = 0;
info.max_axis = 0;
break;
case CLUTTER_INPUT_AXIS_XTILT:
case CLUTTER_INPUT_AXIS_YTILT:
info.min_axis = -1;
info.max_axis = 1;
break;
default:
info.min_axis = 0;
info.max_axis = 1;
break;
}
g_array_append_val (device_x11->axes, info);
pos = device_x11->axes->len - 1;
return pos;
}
gboolean
meta_input_device_x11_get_axis (ClutterInputDevice *device,
int idx,
ClutterInputAxis *use)
{
MetaInputDeviceX11 *device_x11 = META_INPUT_DEVICE_X11 (device);
MetaX11AxisInfo *info;
if (device_x11->axes == NULL)
return FALSE;
if (idx < 0 || idx >= device_x11->axes->len)
return FALSE;
info = &g_array_index (device_x11->axes, MetaX11AxisInfo, idx);
if (use)
*use = info->axis;
return TRUE;
}
gboolean
meta_input_device_x11_translate_axis (ClutterInputDevice *device,
int idx,
double value,
double *axis_value)
{
MetaInputDeviceX11 *device_x11 = META_INPUT_DEVICE_X11 (device);
MetaX11AxisInfo *info;
double width;
double real_value;
if (device_x11->axes == NULL || idx < 0 || idx >= device_x11->axes->len)
return FALSE;
info = &g_array_index (device_x11->axes, MetaX11AxisInfo, idx);
if (info->axis == CLUTTER_INPUT_AXIS_X ||
info->axis == CLUTTER_INPUT_AXIS_Y)
return FALSE;
if (fabs (info->max_value - info->min_value) < 0.0000001)
return FALSE;
width = info->max_value - info->min_value;
real_value = (info->max_axis * (value - info->min_value)
+ info->min_axis * (info->max_value - value))
/ width;
if (axis_value)
*axis_value = real_value;
return TRUE;
}
int
meta_input_device_x11_get_n_axes (ClutterInputDevice *device)
{
MetaInputDeviceX11 *device_x11 = META_INPUT_DEVICE_X11 (device);
return device_x11->axes->len;
}
#ifdef HAVE_LIBWACOM
uint32_t
meta_input_device_x11_get_pad_group_mode (ClutterInputDevice *device,

15
src/backends/x11/meta-input-device-x11.h
View File

@ -71,6 +71,21 @@ gboolean meta_input_device_x11_get_pointer_location (ClutterInputDevice *device,
float *y);
int meta_input_device_x11_get_device_id (ClutterInputDevice *device);
int meta_input_device_x11_get_n_axes (ClutterInputDevice *device);
void meta_input_device_x11_reset_axes (ClutterInputDevice *device);
int meta_input_device_x11_add_axis (ClutterInputDevice *device,
ClutterInputAxis axis,
double minimum,
double maximum,
double resolution);
gboolean meta_input_device_x11_get_axis (ClutterInputDevice *device,
int idx,
ClutterInputAxis *use);
gboolean meta_input_device_x11_translate_axis (ClutterInputDevice *device,
int idx,
double value,
double *axis_value);
G_END_DECLS
#endif /* META_INPUT_DEVICE_X11_H */

13
src/backends/x11/meta-seat-x11.c
View File

@ -148,7 +148,7 @@ translate_valuator_class (Display *xdisplay,
}
}
_clutter_input_device_add_axis (device, axis,
meta_input_device_x11_add_axis (device, axis,
class->min,
class->max,
class->resolution);
@ -947,7 +947,7 @@ translate_pad_axis (ClutterInputDevice *device,
if (val <= 0)
continue;
_clutter_input_device_translate_axis (device, i, val, value);
meta_input_device_x11_translate_axis (device, i, val, value);
if (i == PAD_AXIS_RING1 || i == PAD_AXIS_RING2)
{
@ -1146,8 +1146,9 @@ translate_axes (ClutterInputDevice *device,
if (!XIMaskIsSet (valuators->mask, i))
continue;
if (!meta_input_device_x11_get_axis (device, i, &axis))
continue;
axis = clutter_input_device_get_axis (device, i);
val = *values++;
switch (axis)
@ -1161,7 +1162,7 @@ translate_axes (ClutterInputDevice *device,
break;
default:
_clutter_input_device_translate_axis (device, i, val, &retval[axis]);
meta_input_device_x11_translate_axis (device, i, val, &retval[axis]);
break;
}
}
@ -1179,7 +1180,7 @@ scroll_valuators_changed (ClutterInputDevice *device,
uint32_t n_axes, n_val, i;
double *values;
n_axes = clutter_input_device_get_n_axes (device);
n_axes = meta_input_device_x11_get_n_axes (device);
values = valuators->values;
*dx_p = *dy_p = 0.0;
@ -1785,7 +1786,7 @@ meta_seat_x11_translate_event (MetaSeatX11 *seat,
GINT_TO_POINTER (xev->sourceid));
if (device)
{
_clutter_input_device_reset_axes (device);
meta_input_device_x11_reset_axes (device);
translate_device_classes (clutter_x11_get_default_display (),
device,
xev->classes,

50
src/tests/clutter/interactive/test-devices.c
View File

@ -49,34 +49,6 @@ device_type_name (ClutterInputDevice *device)
}
}
static const gchar *
axis_type_name (ClutterInputAxis axis)
{
switch (axis)
{
case CLUTTER_INPUT_AXIS_X:
return "Absolute X";
case CLUTTER_INPUT_AXIS_Y:
return "Absolute Y";
case CLUTTER_INPUT_AXIS_PRESSURE:
return "Pressure";
case CLUTTER_INPUT_AXIS_XTILT:
return "X Tilt";
case CLUTTER_INPUT_AXIS_YTILT:
return "Y Tilt";
case CLUTTER_INPUT_AXIS_WHEEL:
return "Wheel";
default:
return "Unknown";
}
}
static gboolean
stage_button_event_cb (ClutterActor *actor,
ClutterEvent *event,
@ -85,21 +57,18 @@ stage_button_event_cb (ClutterActor *actor,
ClutterInputDevice *device;
ClutterInputDevice *source_device;
ClutterActor *hand = NULL;
gdouble *axes;
guint n_axes, i;
device = clutter_event_get_device (event);
source_device = clutter_event_get_source_device (event);
hand = g_hash_table_lookup (app->devices, device);
g_print ("Device: '%s' (type: %s, source: '%s', axes: %d)\n",
g_print ("Device: '%s' (type: %s, source: '%s')\n",
clutter_input_device_get_device_name (device),
device_type_name (device),
source_device != device
? clutter_input_device_get_device_name (source_device)
: "<same>",
clutter_input_device_get_n_axes (device));
: "<same>");
if (hand != NULL)
{
@ -109,21 +78,6 @@ stage_button_event_cb (ClutterActor *actor,
clutter_actor_set_position (hand, event_x, event_y);
}
axes = clutter_event_get_axes (event, &n_axes);
for (i = 0; i < n_axes; i++)
{
ClutterInputAxis axis;
axis = clutter_input_device_get_axis (device, i);
if (axis == CLUTTER_INPUT_AXIS_IGNORE)
continue;
g_print ("\tAxis[%2d][%s].value: %.2f\n",
i,
axis_type_name (axis),
axes[i]);
}
return FALSE;
}