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1
2This is a list of major changes in SDL's version history.
3
4---------------------------------------------------------------------------
52.0.9:
6---------------------------------------------------------------------------
7
8General:
9* Added SDL_GameControllerMappingForDeviceIndex() to get the mapping for a controller before it's opened
10
11
12---------------------------------------------------------------------------
132.0.8:
14---------------------------------------------------------------------------
15
16General:
17* Added SDL_fmod() and SDL_log10()
18* Each of the SDL math functions now has the corresponding float version
19* Added SDL_SetYUVConversionMode() and SDL_GetYUVConversionMode() to control the formula used when converting to and from YUV colorspace. The options are JPEG, BT.601, and BT.709
20
21Windows:
22* Implemented WASAPI support on Windows UWP and removed the deprecated XAudio2 implementation
23* Added resampling support on WASAPI on Windows 7 and above
24
25Windows UWP:
26* Added SDL_WinRTGetDeviceFamily() to find out what type of device your application is running on
27
28Mac OS X:
29* Added support for the Vulkan SDK for Mac:
30  https://www.lunarg.com/lunarg-releases-vulkan-sdk-1-0-69-0-for-mac/
31* Added support for OpenGL ES using ANGLE when it's available
32
33Mac OS X / iOS / tvOS:
34* Added a Metal 2D render implementation
35* Added SDL_RenderGetMetalLayer() and SDL_RenderGetMetalCommandEncoder() to insert your own drawing into SDL rendering when using the Metal implementation
36
37iOS:
38* Added the hint SDL_HINT_IOS_HIDE_HOME_INDICATOR to control whether the home indicator bar on iPhone X should be hidden. This defaults to dimming the indicator for fullscreen applications and showing the indicator for windowed applications.
39
40iOS / Android:
41* Added the hint SDL_HINT_RETURN_KEY_HIDES_IME to control whether the return key on the software keyboard should hide the keyboard or send a key event (the default)
42
43Android:
44* SDL now supports building with Android Studio and Gradle by default, and the old Ant project is available in android-project-ant
45* SDL now requires the API 19 SDK to build, but can still target devices down to API 14 (Android 4.0.1)
46* Added SDL_IsAndroidTV() to tell whether the application is running on Android TV
47
48Android / tvOS:
49* Added the hint SDL_HINT_TV_REMOTE_AS_JOYSTICK to control whether TV remotes should be listed as joystick devices (the default) or send keyboard events.
50
51Linux:
52* Added the hint SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR to control whether the X server should skip the compositor for the SDL application. This defaults to "1"
53* Added the hint SDL_HINT_VIDEO_DOUBLE_BUFFER to control whether the Raspberry Pi and KMSDRM video drivers should use double or triple buffering (the default)
54
55
56---------------------------------------------------------------------------
572.0.7:
58---------------------------------------------------------------------------
59
60General:
61* Added audio stream conversion functions:
62	SDL_NewAudioStream
63	SDL_AudioStreamPut
64	SDL_AudioStreamGet
65	SDL_AudioStreamAvailable
66	SDL_AudioStreamFlush
67	SDL_AudioStreamClear
68	SDL_FreeAudioStream
69* Added functions to query and set the SDL memory allocation functions:
70	SDL_GetMemoryFunctions()
71	SDL_SetMemoryFunctions()
72	SDL_GetNumAllocations()
73* Added locking functions for multi-threaded access to the joystick and game controller APIs:
74	SDL_LockJoysticks()
75	SDL_UnlockJoysticks()
76* The following functions are now thread-safe:
77	SDL_SetEventFilter()
78	SDL_GetEventFilter()
79	SDL_AddEventWatch()
80	SDL_DelEventWatch()
81
82
83General:
84---------------------------------------------------------------------------
852.0.6:
86---------------------------------------------------------------------------
87
88General:
89* Added cross-platform Vulkan graphics support in SDL_vulkan.h
90	SDL_Vulkan_LoadLibrary()
91	SDL_Vulkan_GetVkGetInstanceProcAddr()
92	SDL_Vulkan_GetInstanceExtensions()
93	SDL_Vulkan_CreateSurface()
94	SDL_Vulkan_GetDrawableSize()
95	SDL_Vulkan_UnloadLibrary()
96  This is all the platform-specific code you need to bring up Vulkan on all SDL platforms. You can look at an example in test/testvulkan.c
97* Added SDL_ComposeCustomBlendMode() to create custom blend modes for 2D rendering
98* Added SDL_HasNEON() which returns whether the CPU has NEON instruction support
99* Added support for many game controllers, including the Nintendo Switch Pro Controller
100* Added support for inverted axes and separate axis directions in game controller mappings
101* Added functions to return information about a joystick before it's opened:
102	SDL_JoystickGetDeviceVendor()
103	SDL_JoystickGetDeviceProduct()
104	SDL_JoystickGetDeviceProductVersion()
105	SDL_JoystickGetDeviceType()
106	SDL_JoystickGetDeviceInstanceID()
107* Added functions to return information about an open joystick:
108	SDL_JoystickGetVendor()
109	SDL_JoystickGetProduct()
110	SDL_JoystickGetProductVersion()
111	SDL_JoystickGetType()
112	SDL_JoystickGetAxisInitialState()
113* Added functions to return information about an open game controller:
114	SDL_GameControllerGetVendor()
115	SDL_GameControllerGetProduct()
116	SDL_GameControllerGetProductVersion()
117* Added SDL_GameControllerNumMappings() and SDL_GameControllerMappingForIndex() to be able to enumerate the built-in game controller mappings
118* Added SDL_LoadFile() and SDL_LoadFile_RW() to load a file into memory
119* Added SDL_DuplicateSurface() to make a copy of a surface
120* Added an experimental JACK audio driver
121* Implemented non-power-of-two audio resampling, optionally using libsamplerate to perform the resampling
122* Added the hint SDL_HINT_AUDIO_RESAMPLING_MODE to control the quality of resampling
123* Added the hint SDL_HINT_RENDER_LOGICAL_SIZE_MODE to control the scaling policy for SDL_RenderSetLogicalSize():
124	"0" or "letterbox" - Uses letterbox/sidebars to fit the entire rendering on screen (the default)
125	"1" or "overscan"  - Will zoom the rendering so it fills the entire screen, allowing edges to be drawn offscreen
126* Added the hints SDL_HINT_MOUSE_NORMAL_SPEED_SCALE and SDL_HINT_MOUSE_RELATIVE_SPEED_SCALE to scale the mouse speed when being read from raw mouse input
127* Added the hint SDL_HINT_TOUCH_MOUSE_EVENTS to control whether SDL will synthesize mouse events from touch events
128
129Windows:
130* The new default audio driver on Windows is WASAPI and supports hot-plugging devices and changing the default audio device
131* The old XAudio2 audio driver is deprecated and will be removed in the next release
132* Added hints SDL_HINT_WINDOWS_INTRESOURCE_ICON and SDL_HINT_WINDOWS_INTRESOURCE_ICON_SMALL to specify a custom icon resource ID for SDL windows
133* The hint SDL_HINT_WINDOWS_DISABLE_THREAD_NAMING is now on by default for compatibility with .NET languages and various Windows debuggers
134* Updated the GUID format for game controller mappings, older mappings will be automatically converted on load
135* Implemented the SDL_WINDOW_ALWAYS_ON_TOP flag on Windows
136
137Linux:
138* Added an experimental KMS/DRM video driver for embedded development
139
140iOS:
141* Added a hint SDL_HINT_AUDIO_CATEGORY to control the audio category, determining whether the phone mute switch affects the audio
142
143---------------------------------------------------------------------------
1442.0.5:
145---------------------------------------------------------------------------
146
147General:
148* Implemented audio capture support for some platforms
149* Added SDL_DequeueAudio() to retrieve audio when buffer queuing is turned on for audio capture
150* Added events for dragging and dropping text
151* Added events for dragging and dropping multiple items
152* By default the click raising a window will not be delivered to the SDL application. You can set the hint SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH to "1" to allow that click through to the window.
153* Saving a surface with an alpha channel as a BMP will use a newer BMP format that supports alpha information. You can set the hint SDL_HINT_BMP_SAVE_LEGACY_FORMAT to "1" to use the old format.
154* Added SDL_GetHintBoolean() to get the boolean value of a hint
155* Added SDL_RenderSetIntegerScale() to set whether to smoothly scale or use integral multiples of the viewport size when scaling the rendering output
156* Added SDL_CreateRGBSurfaceWithFormat() and SDL_CreateRGBSurfaceWithFormatFrom() to create an SDL surface with a specific pixel format
157* Added SDL_GetDisplayUsableBounds() which returns the area usable for windows. For example, on Mac OS X, this subtracts the area occupied by the menu bar and dock.
158* Added SDL_GetWindowBordersSize() which returns the size of the window's borders around the client area
159* Added a window event SDL_WINDOWEVENT_HIT_TEST when a window had a hit test that wasn't SDL_HITTEST_NORMAL (e.g. in the title bar or window frame)
160* Added SDL_SetWindowResizable() to change whether a window is resizable
161* Added SDL_SetWindowOpacity() and SDL_GetWindowOpacity() to affect the window transparency
162* Added SDL_SetWindowModalFor() to set a window as modal for another window
163* Added support for AUDIO_U16LSB and AUDIO_U16MSB to SDL_MixAudioFormat()
164* Fixed flipped images when reading back from target textures when using the OpenGL renderer
165* Fixed texture color modulation with SDL_BLENDMODE_NONE when using the OpenGL renderer
166* Fixed bug where the alpha value of colorkeys was ignored when blitting in some cases
167
168Windows:
169* Added a hint SDL_HINT_WINDOWS_DISABLE_THREAD_NAMING to prevent SDL from raising a debugger exception to name threads. This exception can cause problems with .NET applications when running under a debugger.
170* The hint SDL_HINT_THREAD_STACK_SIZE is now supported on Windows
171* Fixed XBox controller triggers automatically being pulled at startup
172* The first icon from the executable is used as the default window icon at runtime
173* Fixed SDL log messages being printed twice if SDL was built with C library support
174* Reset dead keys when the SDL window loses focus, so dead keys pressed in SDL applications don't affect text input into other applications.
175
176Mac OS X:
177* Fixed selecting the dummy video driver
178* The caps lock key now generates a pressed event when pressed and a released event when released, instead of a press/release event pair when pressed.
179* Fixed mouse wheel events on Mac OS X 10.12
180* The audio driver has been updated to use AVFoundation for better compatibility with newer versions of Mac OS X
181
182Linux:
183* Added support for the Fcitx IME
184* Added a window event SDL_WINDOWEVENT_TAKE_FOCUS when a window manager asks the SDL window whether it wants to take focus.
185* Refresh rates are now rounded instead of truncated, e.g. 59.94 Hz is rounded up to 60 Hz instead of 59.
186* Added initial support for touchscreens on Raspberry Pi
187
188OpenBSD:
189* SDL_GetBasePath() is now implemented on OpenBSD
190
191iOS:
192* Added support for dynamically loaded objects on iOS 8 and newer
193
194tvOS:
195* Added support for Apple TV
196* Added a hint SDL_HINT_APPLE_TV_REMOTE_ALLOW_ROTATION to control whether he Apple TV remote's joystick axes will automatically match the rotation of the remote.  
197
198Android:
199* Fixed SDL not resizing window when Android screen resolution changes
200* Corrected the joystick Z axis reporting for the accelerometer
201
202Emscripten (running in a web browser):
203* Many bug fixes and improvements
204
205
206---------------------------------------------------------------------------
2072.0.4:
208---------------------------------------------------------------------------
209
210General:
211* Added support for web applications using Emscripten, see docs/README-emscripten.md for more information
212* Added support for web applications using Native Client (NaCl), see docs/README-nacl.md for more information
213* Added an API to queue audio instead of using the audio callback:
214    SDL_QueueAudio(), SDL_GetQueuedAudioSize(), SDL_ClearQueuedAudio()
215* Added events for audio device hot plug support:
216    SDL_AUDIODEVICEADDED, SDL_AUDIODEVICEREMOVED
217* Added SDL_PointInRect()
218* Added SDL_HasAVX2() to detect CPUs with AVX2 support
219* Added SDL_SetWindowHitTest() to let apps treat parts of their SDL window like traditional window decorations (drag areas, resize areas)
220* Added SDL_GetGrabbedWindow() to get the window that currently has input grab, if any
221* Added SDL_RenderIsClipEnabled() to tell whether clipping is currently enabled in a renderer
222* Added SDL_CaptureMouse() to capture the mouse to get events while the mouse is not in your window
223* Added SDL_WarpMouseGlobal() to warp the mouse cursor in global screen space
224* Added SDL_GetGlobalMouseState() to get the current mouse state outside of an SDL window
225* Added a direction field to mouse wheel events to tell whether they are flipped (natural) or not
226* Added GL_CONTEXT_RELEASE_BEHAVIOR GL attribute (maps to [WGL|GLX]_ARB_context_flush_control extension)
227* Added EGL_KHR_create_context support to allow OpenGL ES version selection on some platforms
228* Added NV12 and NV21 YUV texture support for OpenGL and OpenGL ES 2.0 renderers
229* Added a Vivante video driver that is used on various SoC platforms
230* Added an event SDL_RENDER_DEVICE_RESET that is sent from the D3D renderers when the D3D device is lost, and from Android's event loop when the GLES context had to be recreated
231* Added a hint SDL_HINT_NO_SIGNAL_HANDLERS to disable SDL's built in signal handling
232* Added a hint SDL_HINT_THREAD_STACK_SIZE to set the stack size of SDL's threads
233* Added SDL_sqrtf(), SDL_tan(), and SDL_tanf() to the stdlib routines
234* Improved support for WAV and BMP files with unusual chunks in them
235* Renamed SDL_assert_data to SDL_AssertData and SDL_assert_state to SDL_AssertState
236* Added a hint SDL_HINT_WINDOW_FRAME_USABLE_WHILE_CURSOR_HIDDEN to prevent window interaction while cursor is hidden
237* Added SDL_GetDisplayDPI() to get the DPI information for a display
238* Added SDL_JoystickCurrentPowerLevel() to get the battery level of a joystick
239* Added SDL_JoystickFromInstanceID(), as a helper function, to get the SDL_Joystick* that an event is referring to.
240* Added SDL_GameControllerFromInstanceID(), as a helper function, to get the SDL_GameController* that an event is referring to.
241
242Windows:
243* Added support for Windows Phone 8.1 and Windows 10/UWP (Universal Windows Platform)
244* Timer resolution is now 1 ms by default, adjustable with the SDL_HINT_TIMER_RESOLUTION hint
245* SDLmain no longer depends on the C runtime, so you can use the same .lib in both Debug and Release builds
246* Added SDL_SetWindowsMessageHook() to set a function to be called for every windows message before TranslateMessage()
247* Added a hint SDL_HINT_WINDOWS_ENABLE_MESSAGELOOP to control whether SDL_PumpEvents() processes the Windows message loop
248* You can distinguish between real mouse and touch events by looking for SDL_TOUCH_MOUSEID in the mouse event "which" field
249* SDL_SysWMinfo now contains the window HDC
250* Added support for Unicode command line options
251* Prevent beeping when Alt-key combos are pressed
252* SDL_SetTextInputRect() re-positions the OS-rendered IME
253* Added a hint SDL_HINT_WINDOWS_NO_CLOSE_ON_ALT_F4 to prevent generating SDL_WINDOWEVENT_CLOSE events when Alt-F4 is pressed
254* Added a hint SDL_HINT_XINPUT_USE_OLD_JOYSTICK_MAPPING to use the old axis and button mapping for XInput devices (deprecated)
255
256Mac OS X:
257* Implemented drag-and-drop support
258* Improved joystick hot-plug detection
259* The SDL_WINDOWEVENT_EXPOSED window event is triggered in the appropriate situations
260* Fixed relative mouse mode when the application loses/regains focus
261* Fixed bugs related to transitioning to and from Spaces-aware fullscreen-desktop mode
262* Fixed the refresh rate of display modes
263* SDL_SysWMInfo is now ARC-compatible
264* Added a hint SDL_HINT_MAC_BACKGROUND_APP to prevent forcing the application to become a foreground process
265
266Linux:
267* Enabled building with Mir and Wayland support by default.
268* Added IBus IME support
269* Added a hint SDL_HINT_IME_INTERNAL_EDITING to control whether IBus should handle text editing internally instead of sending SDL_TEXTEDITING events
270* Added a hint SDL_HINT_VIDEO_X11_NET_WM_PING to allow disabling _NET_WM_PING protocol handling in SDL_CreateWindow()
271* Added support for multiple audio devices when using Pulseaudio
272* Fixed duplicate mouse events when using relative mouse motion
273
274iOS:
275* Added support for iOS 8
276* The SDL_WINDOW_ALLOW_HIGHDPI window flag now enables high-dpi support, and SDL_GL_GetDrawableSize() or SDL_GetRendererOutputSize() gets the window resolution in pixels
277* SDL_GetWindowSize() and display mode sizes are in the "DPI-independent points" / "screen coordinates" coordinate space rather than pixels (matches OS X behavior)
278* Added native resolution support for the iPhone 6 Plus
279* Added support for MFi game controllers
280* Added support for the hint SDL_HINT_ACCELEROMETER_AS_JOYSTICK
281* Added sRGB OpenGL ES context support on iOS 7+
282* Added support for SDL_DisableScreenSaver(), SDL_EnableScreenSaver() and the hint SDL_HINT_VIDEO_ALLOW_SCREENSAVER
283* SDL_SysWMinfo now contains the OpenGL ES framebuffer and color renderbuffer objects used by the window's active GLES view
284* Fixed various rotation and orientation issues
285* Fixed memory leaks
286
287Android:
288* Added a hint SDL_HINT_ANDROID_SEPARATE_MOUSE_AND_TOUCH to prevent mouse events from being registered as touch events
289* Added hints SDL_HINT_ANDROID_APK_EXPANSION_MAIN_FILE_VERSION and SDL_HINT_ANDROID_APK_EXPANSION_PATCH_FILE_VERSION
290* Added support for SDL_DisableScreenSaver(), SDL_EnableScreenSaver() and the hint SDL_HINT_VIDEO_ALLOW_SCREENSAVER
291* Added support for SDL_ShowMessageBox() and SDL_ShowSimpleMessageBox()
292
293Raspberry Pi:
294* Added support for the Raspberry Pi 2
295
296
297---------------------------------------------------------------------------
2982.0.3:
299---------------------------------------------------------------------------
300
301Mac OS X:
302* Fixed creating an OpenGL context by default on Mac OS X 10.6
303
304
305---------------------------------------------------------------------------
3062.0.2:
307---------------------------------------------------------------------------
308General:
309* Added SDL_GL_ResetAttributes() to reset OpenGL attributes to default values
310* Added an API to load a database of game controller mappings from a file:
311    SDL_GameControllerAddMappingsFromFile(), SDL_GameControllerAddMappingsFromRW()
312* Added game controller mappings for the PS4 and OUYA controllers
313* Added SDL_GetDefaultAssertionHandler() and SDL_GetAssertionHandler()
314* Added SDL_DetachThread()
315* Added SDL_HasAVX() to determine if the CPU has AVX features
316* Added SDL_vsscanf(), SDL_acos(), and SDL_asin() to the stdlib routines
317* EGL can now create/manage OpenGL and OpenGL ES 1.x/2.x contexts, and share
318  them using SDL_GL_SHARE_WITH_CURRENT_CONTEXT
319* Added a field "clicks" to the mouse button event which records whether the event is a single click, double click, etc.
320* The screensaver is now disabled by default, and there is a hint SDL_HINT_VIDEO_ALLOW_SCREENSAVER that can change that behavior.
321* Added a hint SDL_HINT_MOUSE_RELATIVE_MODE_WARP to specify whether mouse relative mode should be emulated using mouse warping.
322* testgl2 does not need to link with libGL anymore
323* Added testgles2 test program to demonstrate working with OpenGL ES 2.0
324* Added controllermap test program to visually map a game controller
325
326Windows:
327* Support for OpenGL ES 2.x contexts using either WGL or EGL (natively via
328  the driver or emulated through ANGLE)
329* Added a hint SDL_HINT_VIDEO_WIN_D3DCOMPILER to specify which D3D shader compiler to use for OpenGL ES 2 support through ANGLE
330* Added a hint SDL_HINT_VIDEO_WINDOW_SHARE_PIXEL_FORMAT that is useful when creating multiple windows that should share the same OpenGL context.
331* Added an event SDL_RENDER_TARGETS_RESET that is sent when D3D9 render targets are reset after the device has been restored.
332
333Mac OS X:
334* Added a hint SDL_HINT_MAC_CTRL_CLICK_EMULATE_RIGHT_CLICK to control whether Ctrl+click should be treated as a right click on Mac OS X. This is off by default.
335
336Linux:
337* Fixed fullscreen and focused behavior when receiving NotifyGrab events
338* Added experimental Wayland and Mir support, disabled by default
339
340Android:
341* Joystick support (minimum SDK version required to build SDL is now 12, 
342  the required runtime version remains at 10, but on such devices joystick 
343  support won't be available).
344* Hotplugging support for joysticks
345* Added a hint SDL_HINT_ACCELEROMETER_AS_JOYSTICK to control whether the accelerometer should be listed as a 3 axis joystick, which it will by default.
346
347
348---------------------------------------------------------------------------
3492.0.1:
350---------------------------------------------------------------------------
351
352General:
353* Added an API to get common filesystem paths in SDL_filesystem.h:
354    SDL_GetBasePath(), SDL_GetPrefPath()
355* Added an API to do optimized YV12 and IYUV texture updates:
356    SDL_UpdateYUVTexture()
357* Added an API to get the amount of RAM on the system:
358    SDL_GetSystemRAM()
359* Added a macro to perform timestamp comparisons with SDL_GetTicks():
360    SDL_TICKS_PASSED()
361* Dramatically improved OpenGL ES 2.0 rendering performance
362* Added OpenGL attribute SDL_GL_FRAMEBUFFER_SRGB_CAPABLE
363
364Windows:
365* Created a static library configuration for the Visual Studio 2010 project
366* Added a hint to create the Direct3D device with support for multi-threading:
367    SDL_HINT_RENDER_DIRECT3D_THREADSAFE
368* Added a function to get the D3D9 adapter index for a display:
369    SDL_Direct3D9GetAdapterIndex()
370* Added a function to get the D3D9 device for a D3D9 renderer:
371    SDL_RenderGetD3D9Device()
372* Fixed building SDL with the mingw32 toolchain (mingw-w64 is preferred)
373* Fixed crash when using two XInput controllers at the same time
374* Fixed detecting a mixture of XInput and DirectInput controllers
375* Fixed clearing a D3D render target larger than the window
376* Improved support for format specifiers in SDL_snprintf()
377
378Mac OS X:
379* Added support for retina displays:
380  Create your window with the SDL_WINDOW_ALLOW_HIGHDPI flag, and then use SDL_GL_GetDrawableSize() to find the actual drawable size. You are responsible for scaling mouse and drawing coordinates appropriately.
381* Fixed mouse warping in fullscreen mode
382* Right mouse click is emulated by holding the Ctrl key while left clicking
383
384Linux:
385* Fixed float audio support with the PulseAudio driver
386* Fixed missing line endpoints in the OpenGL renderer on some drivers
387* X11 symbols are no longer defined to avoid collisions when linking statically
388
389iOS:
390* Fixed status bar visibility on iOS 7
391* Flipped the accelerometer Y axis to match expected values
392
393Android:
394IMPORTANT: You MUST get the updated SDLActivity.java to match C code
395* Moved EGL initialization to native code 
396* Fixed the accelerometer axis rotation relative to the device rotation
397* Fixed race conditions when handling the EGL context on pause/resume
398* Touch devices are available for enumeration immediately after init
399
400Raspberry Pi:
401* Added support for the Raspberry Pi, see README-raspberrypi.txt for details
402
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