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8fec942e8a
We were polling SDL messages from two different threads (by mistake), and Sierra now refuses to do that. Tested by Stan, Itms, Fatherbushido, and discussed with Philip for the code change itself. Fixes #4408. Differential Revision: https://code.wildfiregames.com/D42 This was SVN commit r19160.
71 lines
2.6 KiB
C
71 lines
2.6 KiB
C
/* Copyright (c) 2012 Wildfire Games
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* SDL input redirector; dispatches to multiple handlers.
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*/
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#ifndef INCLUDED_INPUT
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#define INCLUDED_INPUT
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#include "lib/external_libraries/libsdl_fwd.h"
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// input handler return values.
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enum InReaction
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{
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// (the handlers' return values are checked and these
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// 'strange' values might bring errors to light)
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// pass the event to the next handler in the chain
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IN_PASS = 4,
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// we've handled it; no other handlers will receive this event.
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IN_HANDLED = 2
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};
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typedef InReaction (*InHandler)(const SDL_Event_*);
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// register an input handler, which will receive all subsequent events first.
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// events are passed to other handlers if handler returns IN_PASS.
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extern void in_add_handler(InHandler handler);
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// remove all registered input handlers
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extern void in_reset_handlers();
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// send event to each handler (newest first) until one returns true
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extern void in_dispatch_event(const SDL_Event_* event);
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// push an event onto the back of a high-priority queue - the new event will
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// be returned by in_poll_event before any standard SDL events
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extern void in_push_priority_event(const SDL_Event_* event);
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// reads events that were pushed by in_push_priority_event
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// returns 1 if an event was read, 0 otherwise.
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extern int in_poll_priority_event(SDL_Event_* event);
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// reads events that were pushed by in_push_priority_event, or, if there are
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// no high-priority events) reads from the SDL event queue with SDL_PollEvent.
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// returns 1 if an event was read, 0 otherwise.
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extern int in_poll_event(SDL_Event_* event);
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#endif // #ifndef INCLUDED_INPUT
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