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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:24:48 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:24:48 +0000
commitcca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch)
tree146f39ded1c938019e1ed42d30923c2ac9e86789 /src/debug/gdk-event-latency-tracker.h
parentInitial commit. (diff)
downloadinkscape-upstream.tar.xz
inkscape-upstream.zip
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/debug/gdk-event-latency-tracker.h')
-rw-r--r--src/debug/gdk-event-latency-tracker.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/src/debug/gdk-event-latency-tracker.h b/src/debug/gdk-event-latency-tracker.h
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Inkscape::Debug::GdkEventLatencyTracker - tracks backlog of GDK events
+ *
+ * Authors:
+ * MenTaLguY <mental@rydia.net>
+ *
+ * Copyright (C) 2008 MenTaLguY
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifndef SEEN_INKSCAPE_DEBUG_GDK_EVENT_LATENCY_TRACKER_H
+#define SEEN_INKSCAPE_DEBUG_GDK_EVENT_LATENCY_TRACKER_H
+
+typedef union _GdkEvent GdkEvent;
+#include <glibmm/timer.h>
+#include <optional>
+
+namespace Inkscape {
+namespace Debug {
+
+class GdkEventLatencyTracker {
+public:
+ GdkEventLatencyTracker();
+ std::optional<double> process(GdkEvent const *e);
+ double maxLatency() const { return max_latency; }
+ double getSkew();
+
+ static GdkEventLatencyTracker &default_tracker();
+
+private:
+ GdkEventLatencyTracker(GdkEventLatencyTracker const &) = delete; // no copy
+ void operator=(GdkEventLatencyTracker const &) = delete; // no assign
+
+ double start_seconds;
+ double max_latency;
+ double skew;
+ double last_elapsed;
+ double last_seconds;
+ Glib::Timer elapsed;
+};
+
+}
+}
+
+#endif
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :