kc3-lang/SDL/src/video/emscripten/SDL_emscriptenvideo.h

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• Hash : 93a6191c
  Author :
  Date : 2017-04-20T13:00:54
  

  emscripten: keep track of pointer lock losses and maybe regrab pointer later. If an Emscripten app is in relative mouse mode and the user presses Escape (or whatever is appropriate), then the pointer lock is broken by the browser. This keeps track of those losses, and next time the user presses a mouse button down on the canvas, if the app is still meant to be in relative mouse mode, we will attempt to regrab the pointer. This makes it much more seamless for things like first-person shooters, and the app doesn't need any manual intervention.

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• src/video/emscripten/SDL_emscriptenvideo.h

• /*
    Simple DirectMedia Layer
    Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
  
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.
  
    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely, subject to the following restrictions:
  
    1. The origin of this software must not be misrepresented; you must not
       claim that you wrote the original software. If you use this software
       in a product, an acknowledgment in the product documentation would be
       appreciated but is not required.
    2. Altered source versions must be plainly marked as such, and must not be
       misrepresented as being the original software.
    3. This notice may not be removed or altered from any source distribution.
  */
  #include "../../SDL_internal.h"
  
  #ifndef _SDL_emscriptenvideo_h
  #define _SDL_emscriptenvideo_h
  
  #include "../SDL_sysvideo.h"
  #include "../../events/SDL_touch_c.h"
  #include <emscripten/emscripten.h>
  #include <emscripten/html5.h>
  
  #include <EGL/egl.h>
  
  typedef struct SDL_WindowData
  {
  #if SDL_VIDEO_OPENGL_EGL
      EGLSurface egl_surface;
  #endif
      SDL_Window *window;
      SDL_Surface *surface;
  
      float pixel_ratio;
  
      SDL_bool external_size;
  
      int requested_fullscreen_mode;
      SDL_bool fullscreen_resize;
  
      SDL_bool finger_touching;  /* for mapping touch events to mice */
      SDL_FingerID first_finger;
  
      SDL_bool has_pointer_lock;
  } SDL_WindowData;
  
  #endif /* _SDL_emscriptenvideo_h */
  
  /* vi: set ts=4 sw=4 expandtab: */
  

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