kc3-lang/SDL/src

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• Hash : 0dd7024d
  Author :
  Date : 2021-03-12T21:58:20
  

  Modifies WaitEvent and WaitEventTimeout to actually wait instead of polling
  
  When possible use native os functions to make a blocking call waiting for
  an incoming event. Previous behavior was to continuously poll the event
  queue with a small delay between each poll.
  
  The blocking call uses a new optional video driver event,
  WaitEventTimeout, if available. It is called only if an window
  already shown is available. If present the window is designated
  using the variable wakeup_window to receive a wakeup event if
  needed.
  
  The WaitEventTimeout function accept a timeout parameter. If
  positive the call will wait for an event or return if the timeout
  expired without any event. If the timeout is zero it will
  implement a polling behavior. If the timeout is negative the
  function will block indefinetely waiting for an event.
  
  To let the main thread sees events sent form a different thread
  a "wake-up" signal is sent to the main thread if the main thread
  is in a blocking state. The wake-up event is sent to the designated
  wakeup_window if present.
  
  The wake-up event is sent only if the PushEvent call is coming
  from a different thread. Before sending the wake-up event
  the ID of the thread making the blocking call is saved using the
  variable blocking_thread_id and it is compared to the current
  thread's id to decide if the wake-up event should be sent.
  
  Two new optional video device methods are introduced:
  
  WaitEventTimeout
  SendWakeupEvent
  
  in addition the mutex
  
  wakeup_lock
  
  which is defined and initialized but only for the drivers supporting the
  methods above.
  
  If the methods are not present the system behaves as previously
  performing a periodic polling of the events queue.
  
  The blocking call is disabled if a joystick or sensor is detected
  and falls back to previous behavior.
  

• Files

• SDL.c
• SDL_assert.c
• SDL_assert_c.h
• SDL_dataqueue.c
• SDL_dataqueue.h
• SDL_error.c
• SDL_error_c.h
• SDL_hints.c
• SDL_hints_c.h
• SDL_internal.h
• SDL_log.c
• atomic/
• audio/
• core/
• cpuinfo/
• dynapi/
• events/
• file/
• filesystem/
• haptic/
• hidapi/
• joystick/
• libm/
• loadso/
• locale/
• main/
• misc/
• power/
• render/
• sensor/
• stdlib/
• test/
• thread/
• timer/
• video/

• Properties

• Git HTTP	https://git.kmx.io/kc3-lang/SDL.git
  Git SSH	git@git.kmx.io:kc3-lang/SDL.git
  Public access ?	public
  Description	Fork of https://github.com/libsdl-org/SDL
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