Update SDL_mixer bindings to 2.6.0 (#237)

* Update mixer bindings to 2.6.0

* Add some new docstrings

* Overhaul and expand mixer unit tests

* Expand the mixer docs some more

* More docs updates

Author: a-hurst

doc/modules/sdl2_sdlmixer.rst

@@ -29,9 +29,7 @@ corresponding functions. All other audio playback is performed using
    can be used in the meantime to fill in any gaps.
 
 The official documentation for the SDL_mixer library can be found `here
-<http://www.libsdl.org/projects/SDL_mixer/docs/index.html>`_. Note that
-not all functions may be documented, as the official doucmentation is
-currently several releases out-of-date.
+<https://wiki.libsdl.org/SDL_mixer/FrontPage>`_.
 
 
 Main data types
@@ -123,9 +121,25 @@ Decoder availability & info functions
 
 .. autofunction:: Mix_GetMusicDecoder
 
+.. autofunction:: Mix_HasMusicDecoder
+
 .. autofunction:: Mix_GetMusicType
 
 
+Music metadata functions
+------------------------
+
+.. autofunction:: Mix_GetMusicTitle
+
+.. autofunction:: Mix_GetMusicTitleTag
+
+.. autofunction:: Mix_GetMusicArtistTag
+
+.. autofunction:: Mix_GetMusicAlbumTag
+
+.. autofunction:: Mix_GetMusicCopyrightTag
+
+
 Channel functions
 -----------------
 
@@ -201,6 +215,8 @@ Music playback
 
 .. autofunction:: Mix_RewindMusic
 
+.. autofunction:: Mix_ModMusicJumpToOrder
+
 .. autofunction:: Mix_SetMusicPosition
 
 .. autofunction:: Mix_HaltMusic
@@ -219,6 +235,10 @@ Volume functions
 
 .. autofunction:: Mix_VolumeMusic
 
+.. autofunction:: Mix_GetMusicVolume
+
+.. autofunction:: Mix_MasterVolume
+
 
 Playback status functions
 -------------------------
@@ -237,6 +257,16 @@ Playback status functions
 
 .. autofunction:: Mix_FadingMusic
 
+.. autofunction:: Mix_GetMusicPosition
+
+.. autofunction:: Mix_MusicDuration
+
+.. autofunction:: Mix_GetMusicLoopStartTime
+
+.. autofunction:: Mix_GetMusicLoopEndTime
+
+.. autofunction:: Mix_GetMusicLoopLengthTime
+
 
 Effects-processing functions
 ----------------------------
@@ -279,12 +309,15 @@ MikMod configuration functions
 .. autofunction:: Mix_GetSynchroValue
 
 
-MIDI SoundFont functions
-^^^^^^^^^^^^^^^^^^^^^^^^
+MIDI configuration functions
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 .. autofunction:: Mix_SetSoundFonts
 
 .. autofunction:: Mix_GetSoundFonts
 
 .. autofunction:: Mix_EachSoundFont
 
+.. autofunction:: Mix_SetTimidityCfg
+
+.. autofunction:: Mix_GetTimidityCfg

doc/news.rst

@@ -8,6 +8,7 @@ This describes the latest changes between the PySDL2 releases.
 New Features:
 
 * Updated to wrap new functions and constants in SDL2_ttf 2.20.0 (PR #236).
+* Updated to wrap new functions and constants in SDL2_mixer 2.6.0 (PR #237).
 * Updated to wrap new functions and constants in SDL2_image 2.6.0 (PR #238).
 * Added a new function :func:`sdl2.ext.load_svg` that allows loading simple SVG
   images at arbitrary resolutions with SDL2_image 2.6.0 or later (PR #238).