diff options
| -rw-r--r-- | gdk/gdkframeclock.c | 12 | ||||
| -rw-r--r-- | gdk/gdkframeclockprivate.h | 4 | ||||
| -rw-r--r-- | gdk/gdkframetimings.c | 17 |
3 files changed, 29 insertions, 4 deletions
diff --git a/gdk/gdkframeclock.c b/gdk/gdkframeclock.c index f84aee77bb..6f6d1a1d42 100644 --- a/gdk/gdkframeclock.c +++ b/gdk/gdkframeclock.c @@ -416,12 +416,18 @@ _gdk_frame_clock_begin_frame (GdkFrameClock *frame_clock) priv->frame_counter++; priv->current = (priv->current + 1) % FRAME_HISTORY_MAX_LENGTH; + /* Try to steal the previous frame timing instead of discarding + * and allocating a new one. + */ + if G_LIKELY (priv->n_timings == FRAME_HISTORY_MAX_LENGTH && + _gdk_frame_timings_steal (priv->timings[priv->current], + priv->frame_counter)) + return; + if (priv->n_timings < FRAME_HISTORY_MAX_LENGTH) priv->n_timings++; else - { - gdk_frame_timings_unref(priv->timings[priv->current]); - } + gdk_frame_timings_unref(priv->timings[priv->current]); priv->timings[priv->current] = _gdk_frame_timings_new (priv->frame_counter); } diff --git a/gdk/gdkframeclockprivate.h b/gdk/gdkframeclockprivate.h index cda5aff37b..17e06dfcf7 100644 --- a/gdk/gdkframeclockprivate.h +++ b/gdk/gdkframeclockprivate.h @@ -111,7 +111,9 @@ void _gdk_frame_clock_begin_frame (GdkFrameClock *clock); void _gdk_frame_clock_debug_print_timings (GdkFrameClock *clock, GdkFrameTimings *timings); -GdkFrameTimings *_gdk_frame_timings_new (gint64 frame_counter); +GdkFrameTimings *_gdk_frame_timings_new (gint64 frame_counter); +gboolean _gdk_frame_timings_steal (GdkFrameTimings *timings, + gint64 frame_counter); void _gdk_frame_clock_emit_flush_events (GdkFrameClock *frame_clock); void _gdk_frame_clock_emit_before_paint (GdkFrameClock *frame_clock); diff --git a/gdk/gdkframetimings.c b/gdk/gdkframetimings.c index 0245d469d2..7b8a3dd88c 100644 --- a/gdk/gdkframetimings.c +++ b/gdk/gdkframetimings.c @@ -17,6 +17,8 @@ #include "config.h" +#include <string.h> + #include "gdkframeclockprivate.h" /** @@ -48,6 +50,21 @@ _gdk_frame_timings_new (gint64 frame_counter) return timings; } +gboolean +_gdk_frame_timings_steal (GdkFrameTimings *timings, + gint64 frame_counter) +{ + if (timings->ref_count == 1) + { + memset (timings, 0, sizeof *timings); + timings->ref_count = 1; + timings->frame_counter = frame_counter; + return TRUE; + } + + return FALSE; +} + /** * gdk_frame_timings_ref: * @timings: a #GdkFrameTimings |