Allegro changelog for 5.1.x series

See changes-5.0.txt for changes in Allegro 5.0.x. These lists serve as summaries; the full histories are in the Subversion repository.

Changes from 5.1.6 to 5.1.7 (May 2013)

The main developers this time were: Peter Wang, Trent Gamblin.

Graphics:

• Added al_horizontal_shear_transform, al_vertical_shear_transform (Jeff Bernard).

• Make al_destroy_bitmap maintain the current display when untargeting the bitmap to be destroyed.

• Delete al_create_custom_bitmap.

• Delete al_ortho_transform compatibility macro.

• Make al_get_d3d_texture_size fail instead of crash if passed a non-D3D bitmap.

• Make al_get_opengl_texture_size return success code to match D3D.

• Rename al_d3d_set_release/restore_callback to be consistent with existing naming, and pass the display as an argument.

• Check availability of fullscreen button on window frame at run-time (OS X).

Input:

• Fix mouse warping on OS X.

• Fix mouse warping in Linux evdev mouse driver.

Audio addon:

• pulseaudio: Use smaller buffer size by default, and make it configurable.

• pulseaudio: Clean up state transitions.

Color addon:

• Fix al_color_rgb_to_html blue component (Jeff Bernard).

• Implement al_color_html_to_rgb and al_color_html more strictly.

Primitives addon:

• Delete al_draw_polygon_with_holes.

• Delete stride-less version of al_draw_polyline*.

• Simplify interface of al_triangulate_polygon and al_draw_filled_polygon_with_holes.

Video addon:

• Make al_seek_video return a result.

• Fix crash when unable to open a Ogg video.

• Don't scan to end of headers of unknown stream for Ogg video.

• Stop reading at end of Ogg video.

• Try to account for audio buffers in positioning of Ogg video.

• Implement seek to beginning of file (only) in Ogg backend.

• Replace deprecated av_find_stream_info() call (Nick Black).

Android port:

• Fix some Android switch in/out and exit issues.

Build system:

• Do not install most internal header files.

• Do not search for and link with unneeded X libraries.

Examples:

• ex_audio_timer: New example.

• Revise and comment the ex_prim_shader example and shaders (Paul Suntsov).

Other:

• Various documentation updates.

• Minor fixes and much code refactoring.

Changes from 5.1.5 to 5.1.6 (March 2013)

The main developers this time were: Trent Gamblin, Paul Suntsov, Peter Wang.

Core:

• Fix use of clobbered return value from setlocale() on X11.

• Register system interface even if no display driver available on Windows.

• Fix use of double math functions for float arguments (Nick Trout).

Shaders:

• Revamped shader API. The shader API is now part of the core library, and the shader addon removed.

• Shaders are now a per-bitmap property, set with al_use_shader. A bitmap without a set shader uses a default shader internally, that allows Allegro drawing functions to work as in non-programmable pipeline mode.

• Shader variable setters operate on the shader of the target bitmap.

• Rename ALLEGRO_USE_PROGRAMMABLE_PIPELINE to ALLEGRO_PROGRAMMABLE_PIPELINE.

• Rename al_link_shader to al_build_shader.

• Remove al_set_shader.

• Remove the al_set_shader_*_array functions. These functions cannot be easily (or at all) implemented with the D3D backend.

• Add al_get_shader_platform and al_get_default_shader_source.

• Remove al_get_opengl_program_object, al_set_opengl_program_object, al_get_direct3d_effect, al_set_direct3d_effect.

• Remove Cg shader backend.

• Add macros for shader variable names (Jon Rafkind).

Displays:

• Made al_get_display_mode return the closest thing to a pixel format possible with the WGL driver (tobing).

• Move WGL context destruction out of the message pump thread and into the user/main thread.

• Allow command-tab to work in fullscreen window mode on OS X.

• Remove "user_reload" parameter from al_acknowledge_drawing_resume.

• Don't crash in al_create_display if there is no display driver.

• Don't crash at shutdown if there is no display driver (Windows).

• Don't fail init if both D3D, GL drivers unavailable (Windows).

• Sync bitmaps before resizing display to prevent changes being lost after the resize (D3D).

• Load the D3D9X module during display creation and unload it when the D3D system shuts down.

• Run fullscreen toggle on main thread (OS X).

• Destroy the backbuffer bitmap when destroying the display (OS X).

• Switch to new NSTrackingArea API (OS X).

• Set ALLEGRO_NO_PRESERVE_TEXTURE on backbuffer (OpenGL).

Graphics:

• Let al_destroy_bitmap implicitly untarget the bitmap on the calling thread.

• Fix a bug where bitmap locking may change the target bitmap but not restore it back to NULL (OpenGL).

• Use memory bitmap drawing when either bitmap is locked (OpenGL).

• Fix a crash in D3D destroying sub-bitmaps.

• Add const qualifiers to glUniform*v() functions (Aaron Bolyard).

Input:

• Partially fix mouse buttons "sticking" on Mac, e.g. holding the mouse and toggling fullscreen window.

• al_set_mouse_xy on Windows resulted in the mouse getting set to the wrong position in windowed modes

• Scale the user supplied mouse cursor if it's too big (Windows).

• Add key constants for some Android keys, those that are used in Xperia Play controls.

Audio addons:

• Fix PulseAudio driver trying to connect to a non-existent server forever.

• Avoid memory leaks with audio event source.

• Use smaller buffer size for OpenSL.

Image addon:

• Use Allegro built-in loaders in preference to OS X loaders for BMP/TGA/PCX. The OS X TGA loader doesn't support alpha and this is also more consistent.

Font addons:

• Make al_init_font_addon return success value.

• Make al_init_ttf_addon return true for subsequent calls.

Native dialogs addon:

• Fix a crash on iOS due to threading/TLS issues geting the display (Nick Trout).

Primitives addon:

• Speed up al_triangulate_polygon_with_holes.

• Speed up drawing of the rounds for polylines.

• Add custom vertex attributes to the primitives addon.

• Replace vertex shader binary generated by vsa.exe (removed from DirectX SDKs for a while now) by that generated by fxc.exe.

• A minor revamp of the HLSL default shader system in the primitives addon.

• Fix a few incorrect usages of al_lock_vertex_buffer

• Disallow 3 component vectors for ALLEGRO_PRIM_TEX_COORD.

• Add a whole bunch of new ALLEGRO_PRIM_STORAGE values.

• Primitives addon was ignoring the filter settings of textures in the D3D backend.

Android port:

• Generate KEY_CHAR on Android.

• Add key constants for Android.

• Set target bitmap to display backuffer after program is resumed.

• Use different functions for OpenGL ES 1 and OpenGL ES 2 on Android.

iOS port:

• Support stencil buffer on iOS.

• Remove unnecessary autorelease pools. There was a crash when using Airplay that goes away without the pools.

• Make Airplay work the standard way most apps do unless the Allegro user explicitly creates a display on the second screen.

• Don't autorotate displays other than device.

• Fix some threading and memory issues.

Raspberry Pi port:

• Allow for color size, depth and stencil sizes.

• Support al_show_mouse_cursor and al_hide_mouse_cursor. Disabled as it sometimes ends up stuck on the screen until reboot.

Examples:

• New examples: ex_prim_shader, ex_shader_target.

Other:

• Various documentation updates.

• Minor fixes and code refactoring.

Changes from 5.1.4 to 5.1.5 (January 2013)

The main developers this time were: Trent Gamblin, Elias Pschernig, Jon Rafkind, Peter Wang.

Ports:

• Initial port to Raspberry Pi by Trent Gamblin.

Core:

• Added an al_register_trace_handler function.

• Clean up logging subsystem at shutdown (muhkuh).

• Fix a problem with creating a display after Allegro is shut down then re-initialised on X11.

Displays:

• Fix crashes when resizing a WGL fullscreen window.

• Fix use of invalidated pointers in D3D driver when the first format fails.

• Fix bug where setting the mouse cursor had no effect when the mouse was captured (mouse button held down).

• Fix windows not having a minimise button when set to windowed state from fullscreen window state.

• Respect ALLEGRO_FRAMELESS flag properly when toggling from fullscreen window state to windowed state (Windows).

• Don't generate DISPLAY_LOST events when resizing a fullscreen display.

• Fix al_set/get_window position on Windows so getting/setting to the same position continuosly doesn't move the window. (Michael Swiger)

• Rename al_change_display_option to al_set_display_option.

• Add al_set_display_icons (plural), implemented for X11 and Windows.

• Add ALLEGRO_GTK_TOPLEVEL display flag for X11.

• Fix window resizing when using shaders (X11).

Graphics:

• Avoid null pointer dereference when setting a target bitmap after its video_texture has already been released (D3D).

• Make d3d_lock_region fail immediately if ald3d_sync_bitmap failed, likely because the device was lost.

• Set device_lost flag immediately when d3d_display_thread_proc finds the device is lost.

• Fix OpenGL extensions being completely ignored on OS X.

• Added a quick hack to fix bitmap locking on desktop OpenGL when using shaders.

Config:

• Added al_remove_config_key and al_remove_config_section functions.

File I/O:

• Fix al_read_directory crash on 64-bit Windows (simast).

Filesystem:

• Keep absolute path in ALLEGRO_FS_ENTRYs so that later changes to the current working directory do not affect the interpretation of the path.

• Set ALLEGRO_FILEMODE_HIDDEN properly on Unix.

• Make sure stat mode bits are cleared in default implementation of al_update_fs_entry.

• Support Unicode paths on Windows.

• Change description of al_get_fs_entry_name about not returning absolute path if created from relative path; no longer true for either the default or Physfs implementations.

Audio addons:

• Fix setting the speed of an audio stream after it was attached to the mixer (Paul Suntsov).

• Shut down threads properly when when destroying FLAC and modaudio streams.

Font addon:

• Avoid making x offset non-integral for ALLEGRO_ALIGN_CENTRE.

• Make al_draw_justified_* respect ALLEGRO_ALIGN_INTEGER.

TTF addon:

• Don't save the projection transform if no display is set.

Image addon:

• Added a missing autorelease-pool to the OSX bitmap saving function (sleepywind).

• Fix OSX native image loader for loading not-premultiplied RGB data. Previously the data was "de-multiplied", with possibly all information lost.

• Fix OSX native image loader for loading bitmaps without an alpha channel. They appeared completely black previously.

• Fixed loading interlaced .png files with libpng.

Native dialogs addon:

• Do not unload of rich edit module when closing one text log window while another exists. Reported by URB753.

• Use default colours for Windows text log implementation, avoiding problems when the previous custom colours failed, leading to black text on a nearly black background.

• Add al_shutdown_native_dialog_addon.

• Add native menu support on X11 (requires ALLEGRO_GTK_TOPLEVEL).

• Add native menu support on OS X.

PhysicsFS addon:

• Implement al_change_directory semantics (Todd Cope).

Primitives addon:

• Fixed textured primitives when using shaders (OpenGL).

Shader addon:

• Add dynamic loading of d3dx9_xx.dll (Michał Cichoń).

• Add dynamic loading of Cg DLLs (Michał Cichoń).

• Started implementing default shaders. Only GLSL so far.

• Fix null pointer dereference in al_create_shader if backend init fails.

Android port:

• Fix setting the current display on Android.

• Don't set the backbuffer when setting up the OpenGL view.

Build system:

• Rename allegro*-5.1.pc files to allegro*-5.pc. The new names will be available in future 5.0.x releases.

• Generate and install allegro_shader pkg-config file.

• Only generate and install pkg-config files for libraries that we build.

Examples:

• ex_icon2: New example.

• ex_shader_multitex: New example.

• ex_shader: Choose shader platform on command-line; external shader sources.

• ex_menu: Various changes.

• speed: Avoid poor performance due to needless redraws.

Other:

• Documentation updates, many thanks to beoran.

• A lot of code refactoring.

Changes from 5.1.3 to 5.1.4 (October 2012)

The main developers this time were: Trent Gamblin, Elias Pschernig, Peter Wang.

Graphics:

• Fixed al_convert_bitmap using the target instead of the source format when converting its data.

• Fix a crash in Direct3D in al_set_target_bitmap when switching from a memory target.

• Fix a potential crash when drawing the screen to a bitmap with D3D.

• WGL shouldn't need to preserve bitmaps.

• Update the projection transform when setting up the OpenGL context on X11 (SiegeLord).

• Lock bitmap to prevent slowness when creating a cursor from a non-memory bitmap on Windows.

• Conditionally lock bitmap when creating cursor on X11 (previously it did so even if already locked).

Input:

• Make al_install_touch_input fail under Windows if there is no touch device.

• Temporary fix for delay after mouse warp on OS X.

File I/O:

• Fix al_fputc on big-endian. Reported by Andreas Rönnquist and Tobias Hansen.

• Make al_fputc return value like fputc when out of range.

Image addon:

• gdiplus: Only preserve indexed images with KEEP_INDEX flag on.

Font addons:

• Added ALLEGRO_ALIGN_INTEGER text drawing flag (Todd Cope).

• Added a new al_get_font_ranges function.

• Made TTF addon include padding on the top and left edges of pages (Todd Cope).

Audio addon:

• Use programmatically generated interpolators. They cover an additional case which was missed and should be slightly more efficient.

• Support linear interpolation for 16-bit mixers.

• Add cubic interpolation for mixers (off by default).

• Fix potential deadlock in stop_voice for OpenAL.

• Fix potential deadlock in stop_voice for DirectSound.

• Improve buffer filling behaviour for DirectSound, reducing pops and crackles significantly on slower machines.

• Increase default buffer size for DirectSound to 8192 samples.

Android port:

• Support ALLEGRO_KEYBOARD_STATE.

• Fix return type of APK_tell (Todd Cope).

• Allow use of OpenGL ES 2 under Android.

iOS port:

• Make orientation changes work on iOS with SDK 6.

Build system:

• Rename native dialog library back to allegro_dialog to match 5.0.

• Install pkg-config files when cross-compiling on Unix.

Python:

• Make the Python wrapper also check for the monolith DLL.

Examples:

• ex_synth: Add button to save waveform to a file.

• ex_multisample: Demonstrate using moving bitmaps.

• Renamed a5teroids to Cosmic Protector

Other:

• Minor bug fixes and documentation updates.

Changes from 5.1.2 to 5.1.3 (August 2012)

The main developers this time were: Dennis Busch, Trent Gamblin, Elias Pschernig, Jon Rafkind, Paul Suntsov, Peter Wang.

Displays:

• Rewrite D3D display format listing code, which was broken. This should re-enable multi-sampling and fix ex_depth_mask being slow with D3D.

• Fixed a case where changing fullscreen mode in D3D via al_resize_display caused a crash and loss of loaded bitmaps information.

• Fixed a case where changing fullscreen mode in OpenGL (on Windows) via al_resize_display cause nothing to be rendered after the mode change.

• Fixed OpenGL (Windows) bitmap preservation between fullscreen mode changes.

• Fixed missing/incorrect resize events under Windows.

• Fixed ALLEGRO_FULLSCREEN_WINDOW under OS X.

• Fix al_set_new_display_adapter on OS X.

• Enable fullscreen icon on resizable windows on OS X 10.7 and up.

• Added al_osx_get_window function (Dennis Gooden).

Graphics:

• Rename al_ortho_transform to al_orthographic_transform and give it a more consistent parameter order.

• Add al_perspective_transform and al_translate|scale|rotate_transform_3d.

• al_draw_pixel was crashing when drawn on sub-bitmaps on OpenGL.

• Make ogl_flush_vertex_cache disable GL_TEXTURE_2D state.

• Don't use NSOpenGLPFAAccelerated unnecessarily (OS X).

Input:

• Fix incorrect keyboard modifier flags after leaving and re-entering a window (Windows).

• Fixed a bug with mouse enter/leave events for resized windows under OSX (Dennis Gooden).

Audio addon:

• Add OpenSL ES driver for Android.

Font addons:

• Add builtin font creation function.

• Preserve projection transformation when caching glyphs in the TTF addon.

Image addon:

• Don't include native image loader source files when the native image loaders are disabled.

Primitives addon:

• Add vertex buffer API.

Native dialogs addon:

• Run NSAlert on the main thread (OS X).

Android port:

• Many bug and compatibility fixes.

• Support al_inhibit_screensaver on Android.

• Generate SWITCH_IN/OUT events on Android similar to iOS.

• Support render state API on Android.

• Make al_acknowledge_drawing_resume take a user callback parameter for interdependant textures.

• Support building Android port for x86.

• Add an ANDROID_APP_NAME CMake variable which will replace all org/liballeg/app and org_liballeg_app with your own app name

Build system:

• Make the monolith dll under Windows use proper dll exports with MSVC.

• Properly include the main addon in the monolith build.

• Add Physfs and Cg include directories.

Examples:

• Added new examples: ex_projection, ex_vertex_buffer.

Other:

• Documented the allegro_main addon.

• Various minor bug fixes and cleanups.

Changes from 5.1.1 to 5.1.2 (May 2012)

The main developers this time were: Thomas Fjellstrom, Trent Gamblin, Elias Pschernig, Peter Wang.

Core:

• Add userdata to Windows window callbacks and rename the functions (Matthew Leverton).

• Fix ALLEGRO_STATIC_ASSERT collisions from different files included in the same translation unit. Reported by tobing.

• Make al_ustr_empty_string const correct.

• Fix many memory leak/warnings on MacOS X (Pär Arvidsson).

Filesystem:

• Make stdio al_fopen implementation set proper errno on failure.

• Make al_get_standard_path(ALLEGRO_TEMP_PATH) treat environment values as directory names even without a trailing slash on Unix.

• Fix typo preventing get_executable_name from using System V procfs correctly. Reported by Max Savenkov.

Displays:

• Fixed bug on Windows where two SWITCH_IN events were fired when window was minimized/restored (Michael Swiger).

• Fixed inverted al_toggle_display_flag(ALLEGRO_NOFRAME) logic under Windows as well as a bug where repeatedly setting the flag to on would make the window grow bigger and bigger (Michael Swiger).

• Fixed inverted al_toggle_display_flag(ALLEGRO_NOFRAME) logic in X11.

• Rename al_toggle_display_flag to al_set_display_flag, retaining the older name for compatibility.

• Add ALLEGRO_FRAMELESS as a preferred synonym for the confusing ALLEGRO_NOFRAME flag.

• Set WM_NAME for some window managers (X11).

• Disable the idle timer on iOS (screen lock) when entering airplay mode.

• Make al_destroy_display handle display disconnection properly. The user will need to clean up then call al_destroy_display after receiving ALLEGRO_EVENT_DISPLAY_DISCONNECTED (iOS).

Graphics:

• Added al_get_parent_bitmap (Paul Suntsov).

• Make blitting from backbuffer work when using multisampling on Windows/D3D.

• Redefine pixel format LUMINANCE_8 as SINGLE_CHANNEL_8.

• Map SINGLE_CHANNEL_8 to red channel only. Fix some software pixel format conversion bugs previously present with the LUMINANCE_8 format.

• Added al_create_custom_bitmap.

• Remove ALLEGRO_PRESERVE_TEXTURE flag. The idea is to always preserve textures unless directed otherwise by the user with ALLEGRO_NO_PRESERVE_TEXTURE.

• Added al_clear_depth_buffer and al_set_render_state functions.

• Force al_create_bitmap to not create oversized bitmaps, to mitigate integer overflow problems.

• Removed initial black frame on all Allegro programs.

OpenGL:

• Fix null pointer dereference if backbuffer creation fails. Reported by Max Savenkov.

• Made the ALLEGRO_OPENGL_FORWARD_COMPATIBLE flag work with al_draw_bitmap.

• Texture should be 'complete' (min/mag and wrap set) before glTexImage2D.

• Restore matrix manipulation code for unlocking backbuffer in GL <1.4 case.

• Fixed a bug in al_unlock_bitmap where the pixel alignment mistakenly was used as row length.

• Never set the projection when using programmable pipeline mode unless a program object is bound.

• Do not preserve bound texture state.

• Disable GL_NORMAL_ARRAY in non-programmable pipeline mode.

• Fixed typo in names of some OpenGL extension functions.

• Display list of OpenGL extensions in allegro.log also for OpenGL 3.0.

• Check for OES_texture_npot as well for non-power-of-two support.

• Fix loading of some textures on iOS.

Direct3D:

• Fixed a bug in the D3D driver where separate alpha blending was being tested for when it shouldn't have been (Max Savenkov).

• Do not manage depth stencil surface.

• Arrange code so that sleep and hibernate work using the release and restore callbacks.

• Fix device reset problem in D3D.

• Make sub-bitmap restore properly on lost device.

Input:

• Increase max number of joystick "sticks". Due to analogue buttons being mapped to axes, the number of sticks on a single device may be much higher than expected.

• Monitor /dev/input instead of /dev on Linux for hotplugging joysticks (Jon Rafkind).

• Do not permanently change the locale for the X11 keyboard driver. Set LC_CTYPE only, not LC_ALL.

• Update ALLEGRO_MOUSE_STATE even if mouse emulation event source isn't attached to an event queue (Android and iOS).

• Don't report shakes at program start accidentally (iOS).

Android port:

• Many graphics-related changes (too many to list).

• Make Android port always choose a double buffered graphics mode.

• Don't force 16-bit mode if no COLOR_SIZE specified.

• Go fullscreen (no title/status bar).

• Generate ALLEGRO_EVENT_DISPLAY_HALT_DRAWING, RESUME_DRAWING events instead of SWITCH_IN/OUT.

• Add an APK file driver for reading assets directly from Android app bundles.

• Additions and fixes to accelerometer and orientation code.

• Support for volume keys.

• Added a dummy mouse driver, enough to get al_get_mouse_state working.

• Improve compatibility of touch input emulation driver with iOS touch input emulation.

• Add al_android_get_os_version().

• Fix linking problem on Android 2.2 and below.

• Update and clean up sample project.

Audio addon:

• Fix desychronization due to inaccurate sample positions when resampling. Thanks to _Bnu for discovering the issue and Paul Suntsov for devising the correct solution.

• Fix linear interpolation across audio stream buffer fragments.

• Add stub OpenSL driver (Jon Rafkind).

Image addon:

• Improved accuracy of un-alpha-premultiplying in the native OSX bitmap loader.

• Improve compatibility of BMP loader. In particular, support bitmaps with V2-V5 headers and certain alpha bit masks.

• Improve robustness of BMP loader against some corrupt files.

• Fix TGA loader using more memory than necessary. Reported by Max Savenkov.

• Image loading in Android now works.

Font addon:

• Use user set pixel format for fonts.

TTF addon:

• Added ALLEGRO_TTF_NO_AUTOHINT font loading flag to disable the Auto Hinter which is enabled by default in newer version of FreeType (Michał Cichoń).

• Unlock glyph cache page at end of text_length and get_text_dimensions (jmasterx).

Primitives addon:

• Use GL_REPEAT so textures can be tiled again.

• Always set the texture due to missing glGetInteger on some GLES 1.0/1.1 devices.

Native dialogs addon:

• Only call SetMenu from within the window thread (Matthew Leverton).

• Clear mouse state after dialogs or else it gets messed up (OSX).

• Fix some warnings in gtk_dialog.c.

Build system:

• Added OSX Framework support for the monolith library.

• Make examples build with monolith build.

• Add WANT_ANDROID_LEGACY to allow compiling for older Android platforms.

Examples:

• a5teroids: Added high scores and other improvements. New graphics by Tony Huisman.

• Add ex_file_slice.

• Add ex_resample_test.

• Add ex_depth_mask.

• ex_audio_props: Add bidir button.

• ex_joystick_events: Support hotplugging and fix display of 3-axis sticks.

• ex_polygon: Test al_draw_filled_polygon_with_holes.

• ex_get_path: Test al_set_exe_name.

• Made the skater demo run from within xcode.

• Add test_driver --no-display flag. (Tobias Hansen)

• Add test_driver --force-opengl-2.0 option.

• Make .png and .tga loading tests to not require a backbuffer with an alpha channel.

Other:

• Many minor bug fixes.

• Many documentation updates.

• Fix whatis entries of man pages. (Tobias Hansen)

Changes from 5.1.0 to 5.1.1 (February 2012)

The main developers were: Thomas Fjellstrom, Trent Gamblin, Matthew Leverton, Elias Pschernig, Jon Rafkind, Peter Wang.

Ports:

• Thomas Fjellstrom started an Android port. Displays, keys and touch events work.

Core:

• Make al_ref_cstr, al_ref_ustr and al_ref_buffer return const ALLEGRO_USTR* instead of just an ALLEGRO_USTR* (Paul Suntsov).

Graphics:

• Fixed a bug in the OpenGL driver when drawing the backbuffer outside the clipping rectangle of the target bitmap.

Displays:

• Fixed a problem with wrong window size when restoring a minimised window, in code that was added to support window constraints (jmasterx).

• Set ALLEGRO_MINIMIZED display flag on Windows (Zac Evans).

• Prevent a deadlock during display creation on X.

• Fallback to the 'old' visual selection method on X instead of crashing if the 'new' visual selection doesn't work.

• Implement XEmbed protocol.

• Add hot plug display support on iOS (Airplay and wired.)

Input:

• Use the same logic in set_mouse_xy for FULLSCREEN_WINDOW as was used for FULLSCREEN. (Max OS X)

Audio addons:

• Add audio recording API with implementations for ALSA, AudioQueue, DirectSound8 and PulseAudio.

• Improve code to check that DLL symbols are loaded in the acodec addon. The old method was hacky and broke under -O2 using GCC 4.6.1. (Paul Suntsov)

Image addon:

• Some initial Android support.

• Write libjpeg errors to Allegro log.

TTF addon:

• Clear locked region so pixel borders aren't random garbage that can be seen sometimes with linear filtering on.

Video addon:

• Added Ogg Theora/Vorbis backend.

• Fixed a few warnings with ffmpeg version 0.7/0.8.

Build system:

• Add monolith library option.

• Detect the new MinGW cross-compiler in Ubuntu.

Examples:

• Added new examples: ex_record, ex_record_name, ex_display_events.

• ex_ogre3d: Make it work under Windows (AMCerasoli).

• skater: small bug fixes, mouse support, add missing files for scrollers.

• a5teroids: Support gamepads that report small non-zero values for sticks that are at rest.

• Added pong example in Python.

Other:

• Added index to HTML version of the reference manual.

• Various documentation updates.

• Other minor bug fixes.

Changes from 5.0.x to 5.1.0 (November 2011)

The main developers were: Michał Cichoń, Trent Gamblin, Matthew Leverton, Elias Pschernig, Paul Suntsov, Peter Wang.

Core:

• Added al_register_assert_handler.

• Added API for registering callbacks to intercept window messages on Windows.

Graphics:

• Added bitmap conversion API: al_convert_bitmap, al_convert_bitmaps, with bitmap flag ALLEGRO_CONVERT_BITMAP and display option ALLEGRO_AUTO_CONVERT_BITMAPS. Automatic bitmap conversion is enabled by default.

• Added al_draw_tinted_scaled_rotated_bitmap_region.

• Added new ALLEGRO_PIXEL_FORMAT_LUMINANCE_8 format.

• Added a new bitmap flag ALLEGRO_KEEP_INDEX.

• Separate bitmap loader flags from bitmap flags. This adds three functions: al_load_bitmap_flags, al_load_bitmap_flags_f and al_load_bitmap_font_flags.

• Add ALLEGRO_SRC_COLOR, ALLEGRO_DST_COLOR blending modes (Jon Rafkind).

• Add ALLEGRO_INVERSE_SRC_COLOR and ALLEGRO_INVERSE_DST_COLOR blending modes.

• Made al_compose_transform do a full 3d multiply.

• Added al_get_current_inverse_transform, al_ortho_transform, al_get_projection_transform, al_set_projection_transform.

• Added al_reset_clipping_rectangle convenience function.

• Added al_get_d3d_texture_size.

• Added al_d3d_set_release_callback and al_d3d_set_restore_callback for release/restoring user d3d objects.

Displays:

• Added al_get_display_orientation.

• Added a new display option ALLEGRO_SUPPORTED_ORIENTATIONS to specify the supported orientations (default is just portrait as before).

• Added al_change_display_option function, initially only for ALLEGRO_SUPPORTED_ORIENTATIONS.

• Add two new display events (only implemented on iOS right now). ALLEGRO_EVENT_DISPLAY_HALT_DRAWING tells the app to stop all drawing and ALLEGRO_EVENT_DISPLAY_RESUME_DRAWING tells it it can start drawing again. SWITCH_OUT/IN on iOS were redefined from "going into/out of background" to "going active/inactive".

• Added the function al_acknowledge_drawing_halt.

• Added window size constraint functions (jmasterx).

Input:

• Add API related to touch input. The implementation covers iDevices and Windows 7 drivers for touch input. A number of mouse emulation modes are provided.

Events:

• Add al_pause_event_queue, al_is_event_queue_paused.

Filesystem:

• Added al_fopen_slice.

• Added al_set_exe_name which allows overriding Allegro's idea of the path to the current executable.

Audio addon:

• Add mixer gain property and functions.

• Add a 'global' audio event source, generating some audio events from the Audio Queues driver: AUDIO_ROUTE_CHANGE, AUDIO_INTERRUPTION, AUDIO_END_INTERRUPTION.

Native dialogs addon:

• Add menus to native dialogs (Windows and GTK).

Primitives addon:

• Add simple polygon triangulator and polygon drawing routines.

• Added al_draw_polyline and al_draw_polyline_ex.

• Added al_draw_filled_pieslice and al_draw_pieslice.

• Added al_draw_elliptical_arc.

TTF addon:

• Added al_load_ttf_font_stretch functions (tobing).

Shader addon:

• Added a shader addon and programmable pipeline support.

Video addon:

• Added a video player addon, currently using ffmpeg.

iOS port:

• Added al_iphone_override_screen_scale, al_iphone_get_screen_scale, al_iphone_set_statusbar_orientation, al_iphone_get_last_shake_time, al_iphone_get_battery_level, al_iphone_get_window, al_iphone_get_view.

Examples:

• Added new example programs: ex_audio_chain, ex_loading_thread, ex_menu, ex_palette, ex_polygon, ex_shader, ex_window_constraints, ex_video.

• Added skater demo ported from Allegro 4.4.