doc: updated changelog & credits.

doc/changelog.dox

@@ -366,6 +366,11 @@ See also:
 -   Removed unnecessary @ref std::string usage from certain
     @relativeref{Corrade,Utility::ConfigurationValue} specializations (see
     [mosra/magnum#582](https://github.com/mosra/magnum/pull/582))
+-   Added @ref Timeline::currentFrameTime() and
+    @relativeref{Timeline,currentFrameDuration()} counterparts to
+    @relativeref{Timeline,previousFrameTime()} and
+    @relativeref{Timeline,previousFrameDuration()} (see
+    [mosra/magnum#604](https://github.com/mosra/magnum/pull/604))
 
 @subsubsection changelog-latest-changes-debugtools DebugTools library
 

doc/credits.dox

@@ -221,6 +221,8 @@ Are the below lists missing your name or something's wrong?
     Vcpkg packages
 -   **Siim Kallas** ([\@seemk](https://github.com/seemk)) ---
     @ref Platform::Sdl2Application improvements, bugfixes
+-   **Stanislaw Halik** ([\@sthalik](https://github.com/sthalik)) ---
+    @ref Timeline additions
 -   **Steeve Morin** ([\@steeve](https://github.com/steeve)) --- iOS
     buildsystem improvements
 -   **Stefan Wasilewski** ([\@smw](https://github.com/smw)) --- macOS port

src/Magnum/Timeline.cpp

@@ -3,6 +3,7 @@
 
     Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
                 2020, 2021, 2022 Vladimír Vondruš <mosra@centrum.cz>
+    Copyright © 2022 Stanislaw Halik <sthalik@misaki.pl>
 
     Permission is hereby granted, free of charge, to any person obtaining a
     copy of this software and associated documentation files (the "Software"),

src/Magnum/Timeline.h

@@ -5,6 +5,7 @@
 
     Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
                 2020, 2021, 2022 Vladimír Vondruš <mosra@centrum.cz>
+    Copyright © 2022 Stanislaw Halik <sthalik@misaki.pl>
 
     Permission is hereby granted, free of charge, to any person obtaining a
     copy of this software and associated documentation files (the "Software"),
@@ -127,6 +128,7 @@ class MAGNUM_EXPORT Timeline {
 
         /**
          * @brief Current time in seconds
+         * @m_since_latest
          *
          * Returns time elapsed since @ref start() was called. Never smaller
          * than @ref previousFrameTime(). If the timeline  is stopped, the
@@ -136,6 +138,7 @@ class MAGNUM_EXPORT Timeline {
 
         /**
          * @brief Time since the last frame in seconds
+         * @m_since_latest
          *
          * Returns time elapsed since @ref start() or @ref nextFrame() was
          * called, whichever happened last. Compared to