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clutter/stage: Remove ability to set custom perspective

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Unused, and complicates things, so drop it.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1175
This commit is contained in:
Jonas Ådahl 2020-04-03 19:01:04 +02:00 committed by Georges Basile Stavracas Neto
parent 3f068d1138
commit 08431a127a
2 changed files with 17 additions and 66 deletions
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77
clutter/clutter/clutter-stage.c
View File

@ -146,7 +146,6 @@ struct _ClutterStagePrivate
guint throttle_motion_events : 1;
guint min_size_changed : 1;
guint motion_events_enabled : 1;
guint has_custom_perspective : 1;
guint stage_was_relayout : 1;
};
@ -1843,10 +1842,6 @@ clutter_stage_set_property (GObject *object,
clutter_value_get_color (value));
break;
case PROP_PERSPECTIVE:
clutter_stage_set_perspective (stage, g_value_get_boxed (value));
break;
case PROP_TITLE:
clutter_stage_set_title (stage, g_value_get_string (value));
break;
@ -2026,7 +2021,7 @@ clutter_stage_class_init (ClutterStageClass *klass)
P_("Perspective"),
P_("Perspective projection parameters"),
CLUTTER_TYPE_PERSPECTIVE,
CLUTTER_PARAM_READWRITE);
CLUTTER_PARAM_READABLE);
/**
* ClutterStage:title:
@ -2355,8 +2350,8 @@ clutter_stage_get_color (ClutterStage *stage,
}
static void
clutter_stage_set_perspective_internal (ClutterStage *stage,
ClutterPerspective *perspective)
clutter_stage_set_perspective (ClutterStage *stage,
ClutterPerspective *perspective)
{
ClutterStagePrivate *priv = stage->priv;
@ -2381,36 +2376,6 @@ clutter_stage_set_perspective_internal (ClutterStage *stage,
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
}
/**
* clutter_stage_set_perspective:
* @stage: A #ClutterStage
* @perspective: A #ClutterPerspective
*
* Sets the stage perspective. Using this function is not recommended
* because it will disable Clutter's attempts to generate an
* appropriate perspective based on the size of the stage.
*/
void
clutter_stage_set_perspective (ClutterStage *stage,
ClutterPerspective *perspective)
{
ClutterStagePrivate *priv;
g_return_if_fail (CLUTTER_IS_STAGE (stage));
g_return_if_fail (perspective != NULL);
g_return_if_fail (perspective->z_far - perspective->z_near != 0);
priv = stage->priv;
/* If the application ever calls this function then we'll stop
automatically updating the perspective when the stage changes
size */
priv->has_custom_perspective = TRUE;
clutter_stage_set_perspective_internal (stage, perspective);
clutter_stage_update_view_perspective (stage);
}
/**
* clutter_stage_get_perspective:
* @stage: A #ClutterStage
@ -2437,7 +2402,7 @@ clutter_stage_get_perspective (ClutterStage *stage,
* @stage.
*
* Retrieves the @stage's projection matrix. This is derived from the
* current perspective set using clutter_stage_set_perspective().
* current perspective.
*
* Since: 1.6
*/
@ -3152,30 +3117,20 @@ clutter_stage_update_view_perspective (ClutterStage *stage)
perspective = priv->perspective;
/* Ideally we want to regenerate the perspective matrix whenever
* the size changes but if the user has provided a custom matrix
* then we don't want to override it */
if (!priv->has_custom_perspective)
{
perspective.fovy = 60.0; /* 60 Degrees */
perspective.z_near = 0.1;
perspective.aspect = priv->viewport[2] / priv->viewport[3];
z_2d = calculate_z_translation (perspective.z_near);
perspective.fovy = 60.0; /* 60 Degrees */
perspective.z_near = 0.1;
perspective.aspect = priv->viewport[2] / priv->viewport[3];
z_2d = calculate_z_translation (perspective.z_near);
/* NB: z_2d is only enough room for 85% of the stage_height between
* the stage and the z_near plane. For behind the stage plane we
* want a more consistent gap of 10 times the stage_height before
* hitting the far plane so we calculate that relative to the final
* height of the stage plane at the z_2d_distance we got... */
perspective.z_far = z_2d +
tanf (_DEG_TO_RAD (perspective.fovy / 2.0f)) * z_2d * 20.0f;
/* NB: z_2d is only enough room for 85% of the stage_height between
* the stage and the z_near plane. For behind the stage plane we
* want a more consistent gap of 10 times the stage_height before
* hitting the far plane so we calculate that relative to the final
* height of the stage plane at the z_2d_distance we got... */
perspective.z_far = z_2d +
tanf (_DEG_TO_RAD (perspective.fovy / 2.0f)) * z_2d * 20.0f;
clutter_stage_set_perspective_internal (stage, &perspective);
}
else
{
z_2d = calculate_z_translation (perspective.z_near);
}
clutter_stage_set_perspective (stage, &perspective);
cogl_matrix_init_identity (&priv->view);
cogl_matrix_view_2d_in_perspective (&priv->view,

6
clutter/clutter/clutter-stage.h
View File

@ -103,8 +103,7 @@ struct _ClutterStageClass
* @z_far: the distance from the viewer to the far clipping
* plane (always positive)
*
* Stage perspective definition. #ClutterPerspective is only used by
* the fixed point version of clutter_stage_set_perspective().
* Stage perspective definition.
*
* Since: 0.4
*/
@ -140,9 +139,6 @@ GType clutter_stage_get_type (void) G_GNUC_CONST;
CLUTTER_EXPORT
ClutterActor * clutter_stage_new (void);
CLUTTER_EXPORT
void clutter_stage_set_perspective (ClutterStage *stage,
ClutterPerspective *perspective);
CLUTTER_EXPORT
void clutter_stage_get_perspective (ClutterStage *stage,
ClutterPerspective *perspective);