mirror of
https://github.com/brl/mutter.git
synced 2024-12-23 11:32:04 +00:00
2007-11-06 Tomas Frydrych <tf@o-hand.com>
* clutter/clutter-fixed.h:
Added CLUTTER_SQRTI_ARG_MAX, CLUTTER_SQRTI_5_PERCENT,
CLUTTER_SQRTI_10_PERCENT expressing clutter_sqrti limits.
Stripped trailing whitespace.
* clutter/clutter-fixed.c:
(clutter_sqrti):
Updated documentation, stripped trailing whitespace.
* clutter/clutter-behaviour-path.c:
(node_distance):
Use clib sqrt if clutter_sqrti() precission would be worse than
10%.
Stripped trailing whitespace.
This commit is contained in:
Tomas Frydrych
parent
9461dd216b
commit
3b07be19ba
35
ChangeLog
35
ChangeLog
@ -1,3 +1,20 @@
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2007-11-06 Tomas Frydrych <tf@o-hand.com>
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* clutter/clutter-fixed.h:
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Added CLUTTER_SQRTI_ARG_MAX, CLUTTER_SQRTI_5_PERCENT,
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CLUTTER_SQRTI_10_PERCENT expressing clutter_sqrti limits.
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Stripped trailing whitespace.
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* clutter/clutter-fixed.c:
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(clutter_sqrti):
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Updated documentation, stripped trailing whitespace.
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* clutter/clutter-behaviour-path.c:
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(node_distance):
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Use clib sqrt if clutter_sqrti() precission would be worse than
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10%.
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Stripped trailing whitespace.
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2007-11-06 Emmanuele Bassi <ebassi@openedhand.com>
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* clutter/clutter-layout.h: Add commodity macros to test for
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@ -19,7 +36,7 @@
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* clutter/clutter-container.[ch]: removed find_child_by_id method
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from interface (and all implementations of it) since this
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functionality is now implemented using a global hash.
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* clutter/clutter-box.c:
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* clutter/clutter-box.c:
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* clutter/clutter-group.c:
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2007-11-01 Emmanuele Bassi <ebassi@openedhand.com>
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@ -124,7 +141,7 @@
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* clutter/cogl/gles/cogl-defines.h:
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* clutter/cogl/gl/cogl.c:
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* clutter/cogl/gles/cogl.c:
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Switch from use of guint to COGLuint. Avoids problems when
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Switch from use of guint to COGLuint. Avoids problems when
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guint != GLuint on some platforms, i.e OSX.
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(Tommi Komulainen, #525, #523)
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@ -368,18 +385,18 @@
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* clutter/clutter-color.c: Copy the alpha when shading.
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2007-10-16 Tomas Frydrych <tf@o-hand.com>
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* clutter.symbols:
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Added a bunch of missing symbols.
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* clutter/clutter-script.c:
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* json/json-node.c:
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Use g_slice_new0 instead of g_slice_new to avoid passing
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garbage to functions.
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* tests/test-threads.c:
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Replaced non-portable sleep() with g_usleep().
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2007-10-15 Tomas Frydrych <tf@o-hand.com>
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* clutter/cogl/gl/cogl-defines.h:
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@ -393,7 +410,7 @@
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* clutter/clutter-event.c:
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* clutter/clutter-event.h:
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Add synthetic flag and make put_event use it
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Add synthetic flag and make put_event use it
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(via modded patch from pippin)
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* clutter/clutter-main.c: (clutter_do_event):
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@ -412,9 +429,9 @@
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* clutter.symbols:
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A list of public symbols, one per line; semi-autogenerated, so
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might not be complete -- PLEASE when adding new public APIs, add
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might not be complete -- PLEASE when adding new public APIs, add
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the function name to this file.
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2007-10-12 Emmanuele Bassi <ebassi@openedhand.com>
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* clutter/clutter-actor.c: Add a :depth property, so we can
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@ -59,7 +59,7 @@
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static void clutter_scriptable_iface_init (ClutterScriptableIface *iface);
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G_DEFINE_TYPE_WITH_CODE (ClutterBehaviourPath,
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G_DEFINE_TYPE_WITH_CODE (ClutterBehaviourPath,
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clutter_behaviour_path,
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CLUTTER_TYPE_BEHAVIOUR,
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G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_SCRIPTABLE,
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@ -92,7 +92,7 @@ enum
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PROP_KNOT
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};
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static void
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static void
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clutter_behaviour_path_finalize (GObject *object)
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{
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ClutterBehaviourPath *self = CLUTTER_BEHAVIOUR_PATH(object);
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@ -104,8 +104,8 @@ clutter_behaviour_path_finalize (GObject *object)
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}
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static inline void
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interpolate (const ClutterKnot *begin,
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const ClutterKnot *end,
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interpolate (const ClutterKnot *begin,
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const ClutterKnot *end,
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ClutterKnot *out,
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ClutterFixed t)
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{
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@ -117,18 +117,28 @@ static gint
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node_distance (const ClutterKnot *begin,
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const ClutterKnot *end)
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{
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gint t;
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g_return_val_if_fail (begin != NULL, 0);
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g_return_val_if_fail (end != NULL, 0);
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if (clutter_knot_equal (begin, end))
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return 0;
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#if 1
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return clutter_sqrti ((end->x - begin->x) * (end->x - begin->x) +
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(end->y - begin->y) * (end->y - begin->y));
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t = (end->x - begin->x) * (end->x - begin->x) +
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(end->y - begin->y) * (end->y - begin->y);
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/*
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* If we are using limited precision sqrti implementation, fallback on
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* clib sqrt if the precission would be less than 10%
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*/
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#if INT_MAX > CLUTTER_SQRTI_ARG_10_PERCENT
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if (t <= CLUTTER_SQRTI_ARG_10_PERCENT)
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return clutter_sqrti (t);
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else
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return CLUTTER_FLOAT_TO_INT(sqrt(t));
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#else
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return CLUTTER_FLOAT_TO_INT(sqrt((end->x - begin->x) * (end->x - begin->x) +
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(end->y - begin->y) * (end->y - begin->y)));
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return clutter_sqrti (t);
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#endif
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}
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@ -166,7 +176,7 @@ path_alpha_to_position (ClutterBehaviourPath *behave,
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GSList *l;
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gint total_len, offset, dist = 0;
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/* FIXME: Optimise. Much of the data used here can be pre-generated
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/* FIXME: Optimise. Much of the data used here can be pre-generated
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* ( total_len, dist between knots ) when knots are added/removed.
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*/
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@ -181,29 +191,29 @@ path_alpha_to_position (ClutterBehaviourPath *behave,
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total_len = path_total_length (behave);
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offset = (alpha * total_len) / CLUTTER_ALPHA_MAX_ALPHA;
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CLUTTER_NOTE (BEHAVIOUR, "alpha %i vs %i, len: %i vs %i",
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CLUTTER_NOTE (BEHAVIOUR, "alpha %i vs %i, len: %i vs %i",
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alpha, CLUTTER_ALPHA_MAX_ALPHA,
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offset, total_len);
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if (offset == 0)
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{
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/* first knot */
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clutter_behaviour_actors_foreach (behaviour,
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clutter_behaviour_actors_foreach (behaviour,
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actor_apply_knot_foreach,
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priv->knots->data);
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priv->last_knot_passed = (ClutterKnot*)priv->knots->data;
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g_signal_emit (behave, path_signals[KNOT_REACHED], 0,
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priv->knots->data);
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return;
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}
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if (offset == total_len)
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{
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/* Special case for last knot */
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ClutterKnot *last_knot = (g_slist_last (priv->knots))->data;
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clutter_behaviour_actors_foreach (behaviour,
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clutter_behaviour_actors_foreach (behaviour,
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actor_apply_knot_foreach,
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last_knot);
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@ -217,7 +227,7 @@ path_alpha_to_position (ClutterBehaviourPath *behave,
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{
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gint dist_to_next = 0;
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ClutterKnot *knot = l->data;
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if (l->next)
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{
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ClutterKnot *next = l->next->data;
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@ -228,12 +238,12 @@ path_alpha_to_position (ClutterBehaviourPath *behave,
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{
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ClutterKnot new;
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ClutterFixed t;
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t = CLUTTER_INT_TO_FIXED (offset - dist) / dist_to_next;
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interpolate (knot, next, &new, t);
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clutter_behaviour_actors_foreach (behaviour,
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clutter_behaviour_actors_foreach (behaviour,
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actor_apply_knot_foreach,
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&new);
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@ -323,7 +333,7 @@ clutter_behaviour_path_class_init (ClutterBehaviourPathClass *klass)
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CLUTTER_TYPE_KNOT);
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behave_class->alpha_notify = clutter_behaviour_path_alpha_notify;
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g_type_class_add_private (klass, sizeof (ClutterBehaviourPathPrivate));
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}
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@ -379,7 +389,7 @@ clutter_behaviour_path_parse_custom_node (ClutterScriptable *scriptable,
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array = json_node_get_array (node);
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knots_len = json_array_get_length (array);
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for (i = 0; i < knots_len; i++)
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{
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JsonNode *val = json_array_get_element (array, i);
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@ -430,8 +440,8 @@ clutter_behaviour_path_new (ClutterAlpha *alpha,
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{
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ClutterBehaviourPath *behave;
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gint i;
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behave = g_object_new (CLUTTER_TYPE_BEHAVIOUR_PATH,
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behave = g_object_new (CLUTTER_TYPE_BEHAVIOUR_PATH,
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"alpha", alpha,
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NULL);
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@ -449,7 +459,7 @@ clutter_behaviour_path_new (ClutterAlpha *alpha,
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* clutter_behaviour_path_get_knots:
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* @pathb: a #ClutterBehvaiourPath
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*
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* Returns a copy of the list of knots contained by @pathb
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* Returns a copy of the list of knots contained by @pathb
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*
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* Return value: a #GSList of the paths knots.
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*
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@ -465,7 +475,7 @@ clutter_behaviour_path_get_knots (ClutterBehaviourPath *pathb)
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retval = NULL;
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for (l = pathb->priv->knots; l != NULL; l = l->next)
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retval = g_slist_prepend (retval, l->data);
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return g_slist_reverse (retval);
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}
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@ -473,7 +483,7 @@ clutter_behaviour_path_get_knots (ClutterBehaviourPath *pathb)
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* clutter_behaviour_path_append_knot:
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* @pathb: a #ClutterBehvaiourPath
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* @knot: a #ClutterKnot to append.
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*
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*
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* Appends a #ClutterKnot to the path
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*
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* Since: 0.2
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@ -494,9 +504,9 @@ clutter_behaviour_path_append_knot (ClutterBehaviourPath *pathb,
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/**
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* clutter_behaviour_path_insert_knot:
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* @pathb: a #ClutterBehvaiourPath
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* @offset: position in path to insert knot.
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* @offset: position in path to insert knot.
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* @knot: a #ClutterKnot to append.
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*
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*
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* Inserts a #ClutterKnot in the path at specified position. Values greater
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* than total number of knots will append the knot at the end of path.
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*
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@ -520,7 +530,7 @@ clutter_behaviour_path_insert_knot (ClutterBehaviourPath *pathb,
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* clutter_behaviour_path_remove_knot:
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* @pathb: a #ClutterBehvaiourPath
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* @offset: position in path to remove knot.
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*
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*
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* Removes a #ClutterKnot in the path at specified offset.
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*
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* Since: 0.2
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@ -567,7 +577,7 @@ clutter_behaviour_path_append_knots_valist (ClutterBehaviourPath *pathb,
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* @Varargs: additional knots to add to the path
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*
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* Adds a NULL-terminated list of knots to a path. This function is
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* equivalent to calling clutter_behaviour_path_append_knot() for each
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* equivalent to calling clutter_behaviour_path_append_knot() for each
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* member of the list.
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*
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* Since: 0.2
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@ -590,7 +600,7 @@ clutter_behaviour_path_append_knots (ClutterBehaviourPath *pathb,
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/**
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* clutter_behaviour_path_clear:
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* @pathb: a #ClutterBehvaiourPath
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*
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*
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* Removes all knots from a path
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*
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* Since: 0.2
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@ -608,7 +608,9 @@ clutter_sqrtx (ClutterFixed x)
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*
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* This function is about 10x faster than clib sqrt() on x86, and (this is
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* not a typo!) more than 800x faster on ARM without FPU. It's error is < 5%
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* for arguments < 132 and < 10% for arguments < 5591.
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* for arguments < #CLUTTER_SQRTI_ARG_5_PERCENT and < 10% for arguments <
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* #CLUTTER_SQRTI_ARG_10_PERCENT. The maximum argument that can be passed to
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* this function is CLUTTER_SQRTI_ARG_MAX.
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*
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* Return value: integer square root.
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*
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@ -33,14 +33,14 @@ G_BEGIN_DECLS
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/**
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* ClutterFixed:
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*
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*
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* Fixed point number (16.16)
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*/
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typedef gint32 ClutterFixed;
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/**
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* ClutterAngle:
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*
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*
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* Integer representation of an angle such that 1024 corresponds to
|
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* full circle (i.e., 2*Pi).
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||||
*/
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@ -59,96 +59,96 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
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/**
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* CFX_Q:
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*
|
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*
|
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* Size in bits of decimal part of floating point value.
|
||||
*/
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||||
#define CFX_Q 16 /* Decimal part size in bits */
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||||
|
||||
/**
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||||
* CFX_ONE:
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||||
*
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||||
*
|
||||
* 1.0 represented as a fixed point value.
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||||
*/
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||||
#define CFX_ONE (1 << CFX_Q) /* 1 */
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||||
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||||
/**
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* CFX_HALF:
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*
|
||||
*
|
||||
* 0.5 represented as a fixed point value.
|
||||
*/
|
||||
#define CFX_HALF 32768
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||||
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/**
|
||||
* CFX_MAX:
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||||
*
|
||||
*
|
||||
* Maximum fixed point value.
|
||||
*/
|
||||
#define CFX_MAX 0x7fffffff
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||||
|
||||
/**
|
||||
* CFX_MIN:
|
||||
*
|
||||
*
|
||||
* Minimum fixed point value.
|
||||
*/
|
||||
#define CFX_MIN 0x80000000
|
||||
|
||||
/**
|
||||
* CFX_PI:
|
||||
*
|
||||
*
|
||||
* Fixed point representation of Pi
|
||||
*/
|
||||
#define CFX_PI 0x0003243f
|
||||
/**
|
||||
* CFX_2PI:
|
||||
*
|
||||
*
|
||||
* Fixed point representation of Pi*2
|
||||
*/
|
||||
#define CFX_2PI 0x0006487f
|
||||
/**
|
||||
* CFX_PI_2:
|
||||
*
|
||||
*
|
||||
* Fixed point representation of Pi/2
|
||||
*/
|
||||
#define CFX_PI_2 0x00019220 /* pi/2 */
|
||||
/**
|
||||
* CFX_PI_4:
|
||||
*
|
||||
*
|
||||
* Fixed point representation of Pi/4
|
||||
*/
|
||||
#define CFX_PI_4 0x0000c910 /* pi/4 */
|
||||
/**
|
||||
* CFX_360:
|
||||
*
|
||||
*
|
||||
* Fixed point representation of the number 360
|
||||
*/
|
||||
#define CFX_360 CLUTTER_INT_TO_FIXED (360)
|
||||
/**
|
||||
* CFX_240:
|
||||
*
|
||||
*
|
||||
* Fixed point representation of the number 240
|
||||
*/
|
||||
#define CFX_240 CLUTTER_INT_TO_FIXED (240)
|
||||
/**
|
||||
* CFX_180:
|
||||
*
|
||||
*
|
||||
* Fixed point representation of the number 180
|
||||
*/
|
||||
#define CFX_180 CLUTTER_INT_TO_FIXED (180)
|
||||
/**
|
||||
* CFX_120:
|
||||
*
|
||||
*
|
||||
* Fixed point representation of the number 120
|
||||
*/
|
||||
#define CFX_120 CLUTTER_INT_TO_FIXED (120)
|
||||
/**
|
||||
* CFX_60:
|
||||
*
|
||||
*
|
||||
* Fixed point representation of the number 60
|
||||
*/
|
||||
#define CFX_60 CLUTTER_INT_TO_FIXED (60)
|
||||
/**
|
||||
* CFX_255:
|
||||
*
|
||||
*
|
||||
* Fixed point representation of the number 255
|
||||
*/
|
||||
#define CFX_255 CLUTTER_INT_TO_FIXED (255)
|
||||
@ -156,7 +156,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
/**
|
||||
* CLUTTER_FIXED_TO_FLOAT:
|
||||
* @x: a fixed point value
|
||||
*
|
||||
*
|
||||
* Convert a fixed point value to float.
|
||||
*/
|
||||
#define CLUTTER_FIXED_TO_FLOAT(x) ((float) ((int)(x) / 65536.0))
|
||||
@ -164,7 +164,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
/**
|
||||
* CLUTTER_FIXED_TO_DOUBLE:
|
||||
* @x: a fixed point value
|
||||
*
|
||||
*
|
||||
* Convert a fixed point value to double.
|
||||
*/
|
||||
#define CLUTTER_FIXED_TO_DOUBLE(x) ((double) ((int)(x) / 65536.0))
|
||||
@ -172,7 +172,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
/**
|
||||
* CLUTTER_FLOAT_TO_FIXED:
|
||||
* @x: a floating point value
|
||||
*
|
||||
*
|
||||
* Convert a float value to fixed.
|
||||
*/
|
||||
#define CLUTTER_FLOAT_TO_FIXED(x) (_clutter_double_to_fixed ((x)))
|
||||
@ -180,7 +180,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
/**
|
||||
* CLUTTER_FLOAT_TO_INT:
|
||||
* @x: a floating point value
|
||||
*
|
||||
*
|
||||
* Convert a float value to int.
|
||||
*/
|
||||
#define CLUTTER_FLOAT_TO_INT(x) (_clutter_double_to_int ((x)))
|
||||
@ -188,7 +188,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
/**
|
||||
* CLUTTER_FLOAT_TO_UINT:
|
||||
* @x: a floating point value
|
||||
*
|
||||
*
|
||||
* Convert a float value to unsigned int.
|
||||
*/
|
||||
#define CLUTTER_FLOAT_TO_UINT(x) (_clutter_double_to_uint ((x)))
|
||||
@ -196,7 +196,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
/**
|
||||
* CLUTTER_INT_TO_FIXED:
|
||||
* @x: an integer value
|
||||
*
|
||||
*
|
||||
* Convert an integer value to fixed point.
|
||||
*/
|
||||
#define CLUTTER_INT_TO_FIXED(x) ((x) << CFX_Q)
|
||||
@ -216,7 +216,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
/**
|
||||
* CLUTTER_FIXED_INT:
|
||||
* @x: a fixed point value
|
||||
*
|
||||
*
|
||||
* Convert a fixed point value to integer (removing decimal part).
|
||||
*
|
||||
* Deprecated:0.6: Use %CLUTTER_FIXED_TO_INT instead
|
||||
@ -228,7 +228,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
/**
|
||||
* CLUTTER_FIXED_FRACTION:
|
||||
* @x: a fixed point value
|
||||
*
|
||||
*
|
||||
* Retrieves the fractionary part of a fixed point value
|
||||
*/
|
||||
#define CLUTTER_FIXED_FRACTION(x) ((x) & ((1 << CFX_Q) - 1))
|
||||
@ -236,7 +236,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
/**
|
||||
* CLUTTER_FIXED_FLOOR:
|
||||
* @x: a fixed point value
|
||||
*
|
||||
*
|
||||
* Round down a fixed point value to an integer.
|
||||
*/
|
||||
#define CLUTTER_FIXED_FLOOR(x) (((x) >= 0) ? ((x) >> CFX_Q) \
|
||||
@ -244,7 +244,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
/**
|
||||
* CLUTTER_FIXED_CEIL:
|
||||
* @x: a fixed point value
|
||||
*
|
||||
*
|
||||
* Round up a fixed point value to an integer.
|
||||
*/
|
||||
#define CLUTTER_FIXED_CEIL(x) (CLUTTER_FIXED_FLOOR (x + 0xffff))
|
||||
@ -253,7 +253,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
* CLUTTER_FIXED_MUL:
|
||||
* @x: a fixed point value
|
||||
* @y: a fixed point value
|
||||
*
|
||||
*
|
||||
* Multiply two fixed point values
|
||||
*/
|
||||
#define CLUTTER_FIXED_MUL(x,y) ((x) >> 8) * ((y) >> 8)
|
||||
@ -262,7 +262,7 @@ typedef gint32 ClutterAngle; /* angle such that 1024 == 2*PI */
|
||||
* CLUTTER_FIXED_DIV:
|
||||
* @x: a fixed point value
|
||||
* @y: a fixed point value
|
||||
*
|
||||
*
|
||||
* Divide two fixed point values
|
||||
*/
|
||||
#define CLUTTER_FIXED_DIV(x,y) ((((x) << 8)/(y)) << 8)
|
||||
@ -290,7 +290,7 @@ ClutterFixed clutter_tani (ClutterAngle angle);
|
||||
* @angle: a #ClutterFixed angle in radians
|
||||
*
|
||||
* Fixed point cosine function
|
||||
*
|
||||
*
|
||||
* Return value: #ClutterFixed cosine value.
|
||||
*
|
||||
* Note: Implemneted as a macro.
|
||||
@ -307,7 +307,7 @@ ClutterFixed clutter_tani (ClutterAngle angle);
|
||||
*
|
||||
* ClutterAngle is an integer such that 1024 represents
|
||||
* full circle.
|
||||
*
|
||||
*
|
||||
* Return value: #ClutterFixed cosine value.
|
||||
*
|
||||
* Note: Implemneted as a macro.
|
||||
@ -316,6 +316,47 @@ ClutterFixed clutter_tani (ClutterAngle angle);
|
||||
*/
|
||||
#define clutter_cosi(angle) (clutter_sini ((angle) + 256))
|
||||
|
||||
/**
|
||||
* CLUTTER_SQRTI_ARG_MAX
|
||||
*
|
||||
* Maximum argument that can be passed to #clutter_sqrti function.
|
||||
*
|
||||
* Since: 0.6
|
||||
*/
|
||||
#ifndef __SSE2__
|
||||
#define CLUTTER_SQRTI_ARG_MAX 0x3fffff
|
||||
#else
|
||||
#define CLUTTER_SQRTI_ARG_MAX INT_MAX
|
||||
#endif
|
||||
|
||||
/**
|
||||
* CLUTTER_SQRTI_ARG_5_PERCENT
|
||||
*
|
||||
* Maximum argument that can be passed to #clutter_sqrti for which the
|
||||
* resulting error is < 5%
|
||||
*
|
||||
* Since: 0.6
|
||||
*/
|
||||
#ifndef __SSE2__
|
||||
#define CLUTTER_SQRTI_ARG_5_PERCENT 131
|
||||
#else
|
||||
#define CLUTTER_SQRTI_ARG_5_PERCENT INT_MAX
|
||||
#endif
|
||||
|
||||
/**
|
||||
* CLUTTER_SQRTI_ARG_10_PERCENT
|
||||
*
|
||||
* Maximum argument that can be passed to #clutter_sqrti for which the
|
||||
* resulting error is < 10%
|
||||
*
|
||||
* Since: 0.6
|
||||
*/
|
||||
#ifndef __SSE2__
|
||||
#define CLUTTER_SQRTI_ARG_10_PERCENT 5590
|
||||
#else
|
||||
#define CLUTTER_SQRTI_ARG_10_PERCENT INT_MAX
|
||||
#endif
|
||||
|
||||
ClutterFixed clutter_sqrtx (ClutterFixed x);
|
||||
gint clutter_sqrti (gint x);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user