Allegro 5.2 Released

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Allegro, a cross platform C++ based 2D game engine, just released version 5.2.0.  This release is source compatible with prior releases, but is not binary compatible.  The following changes occurred in this release:

Core:

  • Add al_is_event_source_registered (koro).

  • Make destructors log messages more meaningful.

  • Mouse emulation API for touch devices is now unstable.

  • Rename al_convert_bitmaps to al_convert_memory_bitmaps.

Input:

  • Haptic API is now unstable.

Android port:

  • Fixed bogus display destruction on Android which previously caused zombie states.

OSX port:

  • Fix OSX mouse state position scaling.

  • Fix other various scaling issues.

  • Make toggling ALLEGRO_FRAMELESS work.

  • Fix an issue where fullscreen windows would occasionally leave empty space for the titlebar.

  • Fix incorrect debug assert in the audio addon.

Windows port:

  • Make Allegro apps DPI-aware by default, which means that they won’t be scaled by the OS.

  • Fix compilation for the CPU detection code on some compilers.

  • Don’t sync the D3D bitmap when locking with WRITE_ONLY.

  • Remove dsound.dll runtime loading.

  • Don’t link xinput and d3dx9 libraries (they are still required at runtime though if you’re using the relevant features).

  • Fix a bug where al_wait_for_event_timed can block despite 0 timeout (Aldo Nunez).

Build system:

  • Install PDB files when building with MSVC.

Documentation:

  • Fix source links for API entries with multi-line prototypes.

  • Make the readme look prettier on GitHub.

  • Tons of assorted documentation improvements, especially for the audio addon.

Other:

  • Add a stability system where some unstable APIs need to be opted into by defining ALLEGRO_UNSTABLEbefore including Allegro headers.

Audio addon:

  • Fix sporadic deadlocks

  • Recorder API is now unstable.

Native dialog addon:

  • al_toggle_menu_item_flags is now unstable.

TTF addon:

  • Add an option to pre-cache the glyphs, useful for platforms where the current algorithm is buggy (typically some Android devices).

Video addon:

  • Temporarily remove FFmpeg backend, as it was too buggy, didn’t build and was too hard to fix.

Examples:

  • Make ex_vsync less likely cause a seizure.

  • Make ex_draw_bitmap and ex_touch_input switch in/out on Android.

  • Add documentation to ex_bitmap (Daniel Johnson).

  • Improve ex_logo text entry experience.

The full change log is available here, Allegro can be downloaded here.

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