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https://github.com/brl/mutter.git
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Move the easing functions to their own file
Instead of having the easing functions be dependent of ClutterAlpha, and static to the clutter-alpha.c source file, we should make them generic and move them to their own internal header and source files. This will allow to re-use them in the near future.
This commit is contained in:
Emmanuele Bassi
Emmanuele Bassi
parent
1e3debbd9e
commit
59bd20a94b
@ -202,6 +202,7 @@ source_h_priv = \
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$(srcdir)/clutter-bezier.h \
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$(srcdir)/clutter-debug.h \
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$(srcdir)/clutter-device-manager-private.h \
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$(srcdir)/clutter-easing.h \
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$(srcdir)/clutter-effect-private.h \
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$(srcdir)/clutter-event-translator.h \
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$(srcdir)/clutter-event-private.h \
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@ -221,6 +222,7 @@ source_h_priv = \
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# private source code; these should not be introspected
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source_c_priv = \
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$(srcdir)/clutter-easing.c \
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$(srcdir)/clutter-event-translator.c \
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$(srcdir)/clutter-id-pool.c \
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$(srcdir)/clutter-profile.c \
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@ -108,6 +108,7 @@
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#include "clutter-alpha.h"
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#include "clutter-debug.h"
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#include "clutter-enum-types.h"
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#include "clutter-easing.h"
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#include "clutter-main.h"
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#include "clutter-marshal.h"
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#include "clutter-private.h"
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@ -436,7 +437,7 @@ clutter_alpha_get_alpha (ClutterAlpha *alpha)
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g_value_init (¶ms, CLUTTER_TYPE_ALPHA);
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g_value_set_object (¶ms, alpha);
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g_closure_invoke (priv->closure, &result_value, 1, ¶ms, NULL);
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retval = g_value_get_double (&result_value);
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@ -486,7 +487,7 @@ clutter_alpha_set_closure_internal (ClutterAlpha *alpha,
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{
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GClosureMarshal marshal = _clutter_marshal_DOUBLE__VOID;
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g_closure_set_marshal (closure, marshal);
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g_closure_set_marshal (priv->closure, marshal);
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}
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}
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@ -729,511 +730,6 @@ clutter_alpha_get_mode (ClutterAlpha *alpha)
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return alpha->priv->mode;
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}
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static gdouble
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clutter_linear (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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return clutter_timeline_get_progress (timeline);
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}
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static gdouble
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clutter_ease_in_quad (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble progress = clutter_timeline_get_progress (timeline);
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return progress * progress;
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}
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static gdouble
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clutter_ease_out_quad (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble p = clutter_timeline_get_progress (timeline);
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return -1.0 * p * (p - 2);
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}
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static gdouble
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clutter_ease_in_out_quad (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = t / (d / 2);
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if (p < 1)
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return 0.5 * p * p;
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p -= 1;
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return -0.5 * (p * (p - 2) - 1);
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}
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static gdouble
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clutter_ease_in_cubic (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble p = clutter_timeline_get_progress (timeline);
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return p * p * p;
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}
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static gdouble
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clutter_ease_out_cubic (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = t / d - 1;
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return p * p * p + 1;
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}
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static gdouble
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clutter_ease_in_out_cubic (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = t / (d / 2);
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if (p < 1)
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return 0.5 * p * p * p;
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p -= 2;
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return 0.5 * (p * p * p + 2);
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}
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static gdouble
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clutter_ease_in_quart (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble p = clutter_timeline_get_progress (timeline);
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return p * p * p * p;
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}
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static gdouble
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clutter_ease_out_quart (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = t / d - 1;
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return -1.0 * (p * p * p * p - 1);
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}
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static gdouble
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clutter_ease_in_out_quart (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = t / (d / 2);
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if (p < 1)
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return 0.5 * p * p * p * p;
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p -= 2;
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return -0.5 * (p * p * p * p - 2);
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}
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static gdouble
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clutter_ease_in_quint (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble p = clutter_timeline_get_progress (timeline);
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return p * p * p * p * p;
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}
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static gdouble
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clutter_ease_out_quint (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = t / d - 1;
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return p * p * p * p * p + 1;
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}
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static gdouble
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clutter_ease_in_out_quint (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = t / (d / 2);
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if (p < 1)
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return 0.5 * p * p * p * p * p;
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p -= 2;
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return 0.5 * (p * p * p * p * p + 2);
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}
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static gdouble
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clutter_ease_in_sine (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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return -1.0 * cos (t / d * G_PI_2) + 1.0;
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}
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static gdouble
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clutter_ease_out_sine (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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return sin (t / d * G_PI_2);
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}
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static gdouble
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clutter_ease_in_out_sine (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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return -0.5 * (cos (G_PI * t / d) - 1);
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}
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static gdouble
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clutter_ease_in_expo (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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return (t == 0) ? 0.0 : pow (2, 10 * (t / d - 1));
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}
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static gdouble
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clutter_ease_out_expo (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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return (t == d) ? 1.0 : -pow (2, -10 * t / d) + 1;
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}
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static gdouble
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clutter_ease_in_out_expo (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p;
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if (t == 0)
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return 0.0;
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if (t == d)
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return 1.0;
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p = t / (d / 2);
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if (p < 1)
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return 0.5 * pow (2, 10 * (p - 1));
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p -= 1;
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return 0.5 * (-pow (2, -10 * p) + 2);
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}
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static gdouble
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clutter_ease_in_circ (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble p = clutter_timeline_get_progress (timeline);
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return -1.0 * (sqrt (1 - p * p) - 1);
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}
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static gdouble
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clutter_ease_out_circ (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = t / d - 1;
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return sqrt (1 - p * p);
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}
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static gdouble
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clutter_ease_in_out_circ (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = t / (d / 2);
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if (p < 1)
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return -0.5 * (sqrt (1 - p * p) - 1);
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p -= 2;
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return 0.5 * (sqrt (1 - p * p) + 1);
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}
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static gdouble
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clutter_ease_in_elastic (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = d * .3;
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gdouble s = p / 4;
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gdouble q = t / d;
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if (q == 1)
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return 1.0;
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q -= 1;
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return -(pow (2, 10 * q) * sin ((q * d - s) * (2 * G_PI) / p));
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}
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static gdouble
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clutter_ease_out_elastic (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = d * .3;
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gdouble s = p / 4;
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gdouble q = t / d;
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if (q == 1)
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return 1.0;
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return pow (2, -10 * q) * sin ((q * d - s) * (2 * G_PI) / p) + 1.0;
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}
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static gdouble
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clutter_ease_in_out_elastic (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = d * (.3 * 1.5);
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gdouble s = p / 4;
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gdouble q = t / (d / 2);
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if (q == 2)
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return 1.0;
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if (q < 1)
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{
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q -= 1;
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return -.5 * (pow (2, 10 * q) * sin ((q * d - s) * (2 * G_PI) / p));
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}
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else
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{
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q -= 1;
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return pow (2, -10 * q)
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* sin ((q * d - s) * (2 * G_PI) / p)
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* .5 + 1.0;
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}
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}
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static gdouble
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clutter_ease_in_back (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble p = clutter_timeline_get_progress (timeline);
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return p * p * ((1.70158 + 1) * p - 1.70158);
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}
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static gdouble
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clutter_ease_out_back (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = t / d - 1;
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return p * p * ((1.70158 + 1) * p + 1.70158) + 1;
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}
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static gdouble
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clutter_ease_in_out_back (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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ClutterTimeline *timeline = alpha->priv->timeline;
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gdouble t = clutter_timeline_get_elapsed_time (timeline);
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gdouble d = clutter_timeline_get_duration (timeline);
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gdouble p = t / (d / 2);
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gdouble s = 1.70158 * 1.525;
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if (p < 1)
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return 0.5 * (p * p * ((s + 1) * p - s));
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p -= 2;
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return 0.5 * (p * p * ((s + 1) * p + s) + 2);
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}
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static gdouble
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ease_out_bounce_internal (gdouble t,
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gdouble d)
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{
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gdouble p = t / d;
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if (p < (1 / 2.75))
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return 7.5625 * p * p;
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else if (p < (2 / 2.75))
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{
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p -= (1.5 / 2.75);
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return 7.5625 * p * p + .75;
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}
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else if (p < (2.5 / 2.75))
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{
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p -= (2.25 / 2.75);
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return 7.5625 * p * p + .9375;
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}
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else
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{
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p -= (2.625 / 2.75);
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return 7.5625 * p * p + .984375;
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}
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}
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static gdouble
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ease_in_bounce_internal (gdouble t,
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gdouble d)
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{
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return 1.0 - ease_out_bounce_internal (d - t, d);
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}
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static gdouble
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clutter_ease_in_bounce (ClutterAlpha *alpha,
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gpointer dummy G_GNUC_UNUSED)
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{
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||||
ClutterTimeline *timeline = alpha->priv->timeline;
|
||||
gdouble t = clutter_timeline_get_elapsed_time (timeline);
|
||||
gdouble d = clutter_timeline_get_duration (timeline);
|
||||
|
||||
return ease_in_bounce_internal (t, d);
|
||||
}
|
||||
|
||||
static gdouble
|
||||
clutter_ease_out_bounce (ClutterAlpha *alpha,
|
||||
gpointer dummy G_GNUC_UNUSED)
|
||||
{
|
||||
ClutterTimeline *timeline = alpha->priv->timeline;
|
||||
gdouble t = clutter_timeline_get_elapsed_time (timeline);
|
||||
gdouble d = clutter_timeline_get_duration (timeline);
|
||||
|
||||
return ease_out_bounce_internal (t, d);
|
||||
}
|
||||
|
||||
static gdouble
|
||||
clutter_ease_in_out_bounce (ClutterAlpha *alpha,
|
||||
gpointer dummy G_GNUC_UNUSED)
|
||||
{
|
||||
ClutterTimeline *timeline = alpha->priv->timeline;
|
||||
gdouble t = clutter_timeline_get_elapsed_time (timeline);
|
||||
gdouble d = clutter_timeline_get_duration (timeline);
|
||||
|
||||
if (t < d / 2)
|
||||
return ease_in_bounce_internal (t * 2, d) * 0.5;
|
||||
else
|
||||
return ease_out_bounce_internal (t * 2 - d, d) * 0.5 + 1.0 * 0.5;
|
||||
}
|
||||
|
||||
/* static enum/function mapping table for the animation modes
|
||||
* we provide internally
|
||||
*
|
||||
* XXX - keep in sync with ClutterAnimationMode
|
||||
*/
|
||||
static const struct {
|
||||
gulong mode;
|
||||
ClutterAlphaFunc func;
|
||||
} animation_modes[] = {
|
||||
{ CLUTTER_CUSTOM_MODE, NULL },
|
||||
|
||||
{ CLUTTER_LINEAR, clutter_linear },
|
||||
{ CLUTTER_EASE_IN_QUAD, clutter_ease_in_quad },
|
||||
{ CLUTTER_EASE_OUT_QUAD, clutter_ease_out_quad },
|
||||
{ CLUTTER_EASE_IN_OUT_QUAD, clutter_ease_in_out_quad },
|
||||
{ CLUTTER_EASE_IN_CUBIC, clutter_ease_in_cubic },
|
||||
{ CLUTTER_EASE_OUT_CUBIC, clutter_ease_out_cubic },
|
||||
{ CLUTTER_EASE_IN_OUT_CUBIC, clutter_ease_in_out_cubic },
|
||||
{ CLUTTER_EASE_IN_QUART, clutter_ease_in_quart },
|
||||
{ CLUTTER_EASE_OUT_QUART, clutter_ease_out_quart },
|
||||
{ CLUTTER_EASE_IN_OUT_QUART, clutter_ease_in_out_quart },
|
||||
{ CLUTTER_EASE_IN_QUINT, clutter_ease_in_quint },
|
||||
{ CLUTTER_EASE_OUT_QUINT, clutter_ease_out_quint },
|
||||
{ CLUTTER_EASE_IN_OUT_QUINT, clutter_ease_in_out_quint },
|
||||
{ CLUTTER_EASE_IN_SINE, clutter_ease_in_sine },
|
||||
{ CLUTTER_EASE_OUT_SINE, clutter_ease_out_sine },
|
||||
{ CLUTTER_EASE_IN_OUT_SINE, clutter_ease_in_out_sine },
|
||||
{ CLUTTER_EASE_IN_EXPO, clutter_ease_in_expo },
|
||||
{ CLUTTER_EASE_OUT_EXPO, clutter_ease_out_expo },
|
||||
{ CLUTTER_EASE_IN_OUT_EXPO, clutter_ease_in_out_expo },
|
||||
{ CLUTTER_EASE_IN_CIRC, clutter_ease_in_circ },
|
||||
{ CLUTTER_EASE_OUT_CIRC, clutter_ease_out_circ },
|
||||
{ CLUTTER_EASE_IN_OUT_CIRC, clutter_ease_in_out_circ },
|
||||
{ CLUTTER_EASE_IN_ELASTIC, clutter_ease_in_elastic },
|
||||
{ CLUTTER_EASE_OUT_ELASTIC, clutter_ease_out_elastic },
|
||||
{ CLUTTER_EASE_IN_OUT_ELASTIC, clutter_ease_in_out_elastic },
|
||||
{ CLUTTER_EASE_IN_BACK, clutter_ease_in_back },
|
||||
{ CLUTTER_EASE_OUT_BACK, clutter_ease_out_back },
|
||||
{ CLUTTER_EASE_IN_OUT_BACK, clutter_ease_in_out_back },
|
||||
{ CLUTTER_EASE_IN_BOUNCE, clutter_ease_in_bounce },
|
||||
{ CLUTTER_EASE_OUT_BOUNCE, clutter_ease_out_bounce },
|
||||
{ CLUTTER_EASE_IN_OUT_BOUNCE, clutter_ease_in_out_bounce },
|
||||
|
||||
{ CLUTTER_ANIMATION_LAST, NULL },
|
||||
};
|
||||
|
||||
typedef struct _AlphaData {
|
||||
guint closure_set : 1;
|
||||
|
||||
@ -1245,6 +741,76 @@ typedef struct _AlphaData {
|
||||
|
||||
static GPtrArray *clutter_alphas = NULL;
|
||||
|
||||
/*< private >
|
||||
* _clutter_animation_modes:
|
||||
*
|
||||
* A mapping of animation modes and easing functions.
|
||||
*/
|
||||
static const struct {
|
||||
ClutterAnimationMode mode;
|
||||
ClutterEasingFunc func;
|
||||
const char *name;
|
||||
} _clutter_animation_modes[] = {
|
||||
{ CLUTTER_CUSTOM_MODE, NULL, "custom" },
|
||||
|
||||
{ CLUTTER_LINEAR, clutter_linear, "linear" },
|
||||
{ CLUTTER_EASE_IN_QUAD, clutter_ease_in_quad, "easeInQuad" },
|
||||
{ CLUTTER_EASE_OUT_QUAD, clutter_ease_out_quad, "easeOutQuad" },
|
||||
{ CLUTTER_EASE_IN_OUT_QUAD, clutter_ease_in_out_quad, "easeInOutQuad" },
|
||||
{ CLUTTER_EASE_IN_CUBIC, clutter_ease_in_cubic, "easeInCubic" },
|
||||
{ CLUTTER_EASE_OUT_CUBIC, clutter_ease_out_cubic, "easeOutCubic" },
|
||||
{ CLUTTER_EASE_IN_OUT_CUBIC, clutter_ease_in_out_cubic, "easeInOutCubic" },
|
||||
{ CLUTTER_EASE_IN_QUART, clutter_ease_in_quart, "easeInQuart" },
|
||||
{ CLUTTER_EASE_OUT_QUART, clutter_ease_out_quart, "easeOutQuart" },
|
||||
{ CLUTTER_EASE_IN_OUT_QUART, clutter_ease_in_out_quart, "easeInOutQuart" },
|
||||
{ CLUTTER_EASE_IN_QUINT, clutter_ease_in_quint, "easeInQuint" },
|
||||
{ CLUTTER_EASE_OUT_QUINT, clutter_ease_out_quint, "easeOutQuint" },
|
||||
{ CLUTTER_EASE_IN_OUT_QUINT, clutter_ease_in_out_quint, "easeInOutQuint" },
|
||||
{ CLUTTER_EASE_IN_SINE, clutter_ease_in_sine, "easeInSine" },
|
||||
{ CLUTTER_EASE_OUT_SINE, clutter_ease_out_sine, "easeOutSine" },
|
||||
{ CLUTTER_EASE_IN_OUT_SINE, clutter_ease_in_out_sine, "easeInOutSine" },
|
||||
{ CLUTTER_EASE_IN_EXPO, clutter_ease_in_expo, "easeInExpo" },
|
||||
{ CLUTTER_EASE_OUT_EXPO, clutter_ease_out_expo, "easeOutExpo" },
|
||||
{ CLUTTER_EASE_IN_OUT_EXPO, clutter_ease_in_out_expo, "easeInOutExpo" },
|
||||
{ CLUTTER_EASE_IN_CIRC, clutter_ease_in_circ, "easeInCirc" },
|
||||
{ CLUTTER_EASE_OUT_CIRC, clutter_ease_out_circ, "easeOutCirc" },
|
||||
{ CLUTTER_EASE_IN_OUT_CIRC, clutter_ease_in_out_circ, "easeInOutCirc" },
|
||||
{ CLUTTER_EASE_IN_ELASTIC, clutter_ease_in_elastic, "easeInElastic" },
|
||||
{ CLUTTER_EASE_OUT_ELASTIC, clutter_ease_out_elastic, "easeOutElastic" },
|
||||
{ CLUTTER_EASE_IN_OUT_ELASTIC, clutter_ease_in_out_elastic, "easeInOutElastic" },
|
||||
{ CLUTTER_EASE_IN_BACK, clutter_ease_in_back, "easeInBack" },
|
||||
{ CLUTTER_EASE_OUT_BACK, clutter_ease_out_back, "easeOutBack" },
|
||||
{ CLUTTER_EASE_IN_OUT_BACK, clutter_ease_in_out_back, "easeInOutBack" },
|
||||
{ CLUTTER_EASE_IN_BOUNCE, clutter_ease_in_bounce, "easeInBounce" },
|
||||
{ CLUTTER_EASE_OUT_BOUNCE, clutter_ease_out_bounce, "easeOutBounce" },
|
||||
{ CLUTTER_EASE_IN_OUT_BOUNCE, clutter_ease_in_out_bounce, "easeInOutBounce" },
|
||||
|
||||
{ CLUTTER_ANIMATION_LAST, NULL, "sentinel" },
|
||||
};
|
||||
|
||||
static gdouble
|
||||
clutter_alpha_easing_func (ClutterAlpha *alpha,
|
||||
gpointer data G_GNUC_UNUSED)
|
||||
{
|
||||
ClutterAlphaPrivate *priv = alpha->priv;
|
||||
ClutterTimeline *timeline = priv->timeline;
|
||||
ClutterEasingFunc easing_func;
|
||||
gdouble t, d;
|
||||
|
||||
if (G_UNLIKELY (priv->timeline == NULL))
|
||||
return 0.0;
|
||||
|
||||
g_assert (_clutter_animation_modes[priv->mode].mode == priv->mode);
|
||||
g_assert (_clutter_animation_modes[priv->mode].func != NULL);
|
||||
|
||||
t = clutter_timeline_get_elapsed_time (timeline);
|
||||
d = clutter_timeline_get_duration (timeline);
|
||||
|
||||
easing_func = _clutter_animation_modes[priv->mode].func;
|
||||
|
||||
return easing_func (t, d);
|
||||
}
|
||||
|
||||
/**
|
||||
* clutter_alpha_set_mode:
|
||||
* @alpha: a #ClutterAlpha
|
||||
@ -1279,16 +845,20 @@ clutter_alpha_set_mode (ClutterAlpha *alpha,
|
||||
/* sanity check to avoid getting an out of sync
|
||||
* enum/function mapping
|
||||
*/
|
||||
g_assert (animation_modes[mode].mode == mode);
|
||||
g_assert (animation_modes[mode].func != NULL);
|
||||
g_assert (_clutter_animation_modes[mode].mode == mode);
|
||||
g_assert (_clutter_animation_modes[mode].func != NULL);
|
||||
|
||||
clutter_alpha_set_closure_internal (alpha, NULL);
|
||||
|
||||
priv->func = animation_modes[mode].func;
|
||||
priv->mode = mode;
|
||||
|
||||
CLUTTER_NOTE (ANIMATION, "New easing mode '%s'[%lu]\n",
|
||||
_clutter_animation_modes[priv->mode].name,
|
||||
_clutter_animation_modes[priv->mode].mode);
|
||||
|
||||
priv->func = clutter_alpha_easing_func;
|
||||
priv->user_data = NULL;
|
||||
priv->notify = NULL;
|
||||
|
||||
priv->mode = mode;
|
||||
}
|
||||
else if (mode > CLUTTER_ANIMATION_LAST)
|
||||
{
|
||||
|
||||
380
clutter/clutter-easing.c
Normal file
380
clutter/clutter-easing.c
Normal file
@ -0,0 +1,380 @@
|
||||
#include "config.h"
|
||||
|
||||
#include "clutter-easing.h"
|
||||
|
||||
#include <math.h>
|
||||
|
||||
double
|
||||
clutter_linear (double t,
|
||||
double d)
|
||||
{
|
||||
return t / d;
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_quad (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d;
|
||||
|
||||
return p * p;
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_out_quad (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d;
|
||||
|
||||
return -1.0 * p * (p - 2);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_out_quad (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / (d / 2);
|
||||
|
||||
if (p < 1)
|
||||
return 0.5 * p * p;
|
||||
|
||||
p -= 1;
|
||||
|
||||
return -0.5 * (p * (p - 2) - 1);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_cubic (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d;
|
||||
|
||||
return p * p * p;
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_out_cubic (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d - 1;
|
||||
|
||||
return p * p * p + 1;
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_out_cubic (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / (d / 2);
|
||||
|
||||
if (p < 1)
|
||||
return 0.5 * p * p * p;
|
||||
|
||||
p -= 2;
|
||||
|
||||
return 0.5 * (p * p * p + 2);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_quart (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d;
|
||||
|
||||
return p * p * p * p;
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_out_quart (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d - 1;
|
||||
|
||||
return -1.0 * (p * p * p * p - 1);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_out_quart (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / (d / 2);
|
||||
|
||||
if (p < 1)
|
||||
return 0.5 * p * p * p * p;
|
||||
|
||||
p -= 2;
|
||||
|
||||
return -0.5 * (p * p * p * p - 2);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_quint (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d;
|
||||
|
||||
return p * p * p * p * p;
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_out_quint (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d - 1;
|
||||
|
||||
return p * p * p * p * p + 1;
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_out_quint (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / (d / 2);
|
||||
|
||||
if (p < 1)
|
||||
return 0.5 * p * p * p * p * p;
|
||||
|
||||
p -= 2;
|
||||
|
||||
return 0.5 * (p * p * p * p * p + 2);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_sine (double t,
|
||||
double d)
|
||||
{
|
||||
return -1.0 * cos (t / d * G_PI_2) + 1.0;
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_out_sine (double t,
|
||||
double d)
|
||||
{
|
||||
return sin (t / d * G_PI_2);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_out_sine (double t,
|
||||
double d)
|
||||
{
|
||||
return -0.5 * (cos (G_PI * t / d) - 1);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_expo (double t,
|
||||
double d)
|
||||
{
|
||||
return (t == 0) ? 0.0 : pow (2, 10 * (t / d - 1));
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_out_expo (double t,
|
||||
double d)
|
||||
{
|
||||
return (t == d) ? 1.0 : -pow (2, -10 * t / d) + 1;
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_out_expo (double t,
|
||||
double d)
|
||||
{
|
||||
double p;
|
||||
|
||||
if (t == 0)
|
||||
return 0.0;
|
||||
|
||||
if (t == d)
|
||||
return 1.0;
|
||||
|
||||
p = t / (d / 2);
|
||||
|
||||
if (p < 1)
|
||||
return 0.5 * pow (2, 10 * (p - 1));
|
||||
|
||||
p -= 1;
|
||||
|
||||
return 0.5 * (-pow (2, -10 * p) + 2);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_circ (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d;
|
||||
|
||||
return -1.0 * (sqrt (1 - p * p) - 1);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_out_circ (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d - 1;
|
||||
|
||||
return sqrt (1 - p * p);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_out_circ (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / (d / 2);
|
||||
|
||||
if (p < 1)
|
||||
return -0.5 * (sqrt (1 - p * p) - 1);
|
||||
|
||||
p -= 2;
|
||||
|
||||
return 0.5 * (sqrt (1 - p * p) + 1);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_elastic (double t,
|
||||
double d)
|
||||
{
|
||||
double p = d * .3;
|
||||
double s = p / 4;
|
||||
double q = t / d;
|
||||
|
||||
if (q == 1)
|
||||
return 1.0;
|
||||
|
||||
q -= 1;
|
||||
|
||||
return -(pow (2, 10 * q) * sin ((q * d - s) * (2 * G_PI) / p));
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_out_elastic (double t,
|
||||
double d)
|
||||
{
|
||||
double p = d * .3;
|
||||
double s = p / 4;
|
||||
double q = t / d;
|
||||
|
||||
if (q == 1)
|
||||
return 1.0;
|
||||
|
||||
return pow (2, -10 * q) * sin ((q * d - s) * (2 * G_PI) / p) + 1.0;
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_out_elastic (double t,
|
||||
double d)
|
||||
{
|
||||
double p = d * (.3 * 1.5);
|
||||
double s = p / 4;
|
||||
double q = t / (d / 2);
|
||||
|
||||
if (q == 2)
|
||||
return 1.0;
|
||||
|
||||
if (q < 1)
|
||||
{
|
||||
q -= 1;
|
||||
|
||||
return -.5 * (pow (2, 10 * q) * sin ((q * d - s) * (2 * G_PI) / p));
|
||||
}
|
||||
else
|
||||
{
|
||||
q -= 1;
|
||||
|
||||
return pow (2, -10 * q)
|
||||
* sin ((q * d - s) * (2 * G_PI) / p)
|
||||
* .5 + 1.0;
|
||||
}
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_back (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d;
|
||||
|
||||
return p * p * ((1.70158 + 1) * p - 1.70158);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_out_back (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d - 1;
|
||||
|
||||
return p * p * ((1.70158 + 1) * p + 1.70158) + 1;
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_out_back (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / (d / 2);
|
||||
double s = 1.70158 * 1.525;
|
||||
|
||||
if (p < 1)
|
||||
return 0.5 * (p * p * ((s + 1) * p - s));
|
||||
|
||||
p -= 2;
|
||||
|
||||
return 0.5 * (p * p * ((s + 1) * p + s) + 2);
|
||||
}
|
||||
|
||||
static inline double
|
||||
ease_out_bounce_internal (double t,
|
||||
double d)
|
||||
{
|
||||
double p = t / d;
|
||||
|
||||
if (p < (1 / 2.75))
|
||||
{
|
||||
return 7.5625 * p * p;
|
||||
}
|
||||
else if (p < (2 / 2.75))
|
||||
{
|
||||
p -= (1.5 / 2.75);
|
||||
|
||||
return 7.5625 * p * p + .75;
|
||||
}
|
||||
else if (p < (2.5 / 2.75))
|
||||
{
|
||||
p -= (2.25 / 2.75);
|
||||
|
||||
return 7.5625 * p * p + .9375;
|
||||
}
|
||||
else
|
||||
{
|
||||
p -= (2.625 / 2.75);
|
||||
|
||||
return 7.5625 * p * p + .984375;
|
||||
}
|
||||
}
|
||||
|
||||
static inline double
|
||||
ease_in_bounce_internal (double t,
|
||||
double d)
|
||||
{
|
||||
return 1.0 - ease_out_bounce_internal (d - t, d);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_bounce (double t,
|
||||
double d)
|
||||
{
|
||||
return ease_in_bounce_internal (t, d);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_out_bounce (double t,
|
||||
double d)
|
||||
{
|
||||
return ease_out_bounce_internal (t, d);
|
||||
}
|
||||
|
||||
double
|
||||
clutter_ease_in_out_bounce (double t,
|
||||
double d)
|
||||
{
|
||||
if (t < d / 2)
|
||||
return ease_in_bounce_internal (t * 2, d) * 0.5;
|
||||
else
|
||||
return ease_out_bounce_internal (t * 2 - d, d) * 0.5 + 1.0 * 0.5;
|
||||
}
|
||||
115
clutter/clutter-easing.h
Normal file
115
clutter/clutter-easing.h
Normal file
@ -0,0 +1,115 @@
|
||||
#ifndef __CLUTTER_EASING_H__
|
||||
#define __CLUTTER_EASING_H__
|
||||
|
||||
#include <clutter/clutter-types.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
/*< private >
|
||||
* ClutterEasingFunc:
|
||||
* @t: elapsed time
|
||||
* @d: total duration
|
||||
*
|
||||
* Internal type for the easing functions used by Clutter.
|
||||
*
|
||||
* Return value: the interpolated value, between -1.0 and 2.0
|
||||
*/
|
||||
typedef double (* ClutterEasingFunc) (double t, double d);
|
||||
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_linear (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_quad (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_out_quad (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_out_quad (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_cubic (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_out_cubic (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_out_cubic (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_quart (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_out_quart (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_out_quart (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_quint (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_out_quint (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_out_quint (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_sine (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_out_sine (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_out_sine (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_expo (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_out_expo (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_out_expo (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_circ (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_out_circ (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_out_circ (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_elastic (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_out_elastic (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_out_elastic (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_back (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_out_back (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_out_back (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_bounce (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_out_bounce (double t,
|
||||
double d);
|
||||
G_GNUC_INTERNAL
|
||||
double clutter_ease_in_out_bounce (double t,
|
||||
double d);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __CLUTTER_EASING_H__ */
|
||||
Loading…
Reference in New Issue
Block a user