kc3-lang/SDL/src/video/android/SDL_androidtouch.c

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• Hash : 303646a6
  Author :
  Date : 2019-10-31T15:53:10
  

  Android: some readability: redundant casts, deads stores, redundant control flow

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• src/video/android/SDL_androidtouch.c

• /*
    Simple DirectMedia Layer
    Copyright (C) 1997-2019 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"
  
  #if SDL_VIDEO_DRIVER_ANDROID
  
  #include <android/log.h>
  
  #include "SDL_hints.h"
  #include "SDL_events.h"
  #include "SDL_log.h"
  #include "SDL_androidtouch.h"
  #include "../../events/SDL_mouse_c.h"
  #include "../../events/SDL_touch_c.h"
  #include "../../core/android/SDL_android.h"
  
  #define ACTION_DOWN 0
  #define ACTION_UP 1
  #define ACTION_MOVE 2
  /* #define ACTION_CANCEL 3 */
  /* #define ACTION_OUTSIDE 4 */
  #define ACTION_POINTER_DOWN 5
  #define ACTION_POINTER_UP 6
  
  void Android_InitTouch(void)
  {
      /* Add all touch devices */
      Android_JNI_InitTouch();
  }
  
  void Android_QuitTouch(void)
  {
  }
  
  void Android_OnTouch(SDL_Window *window, int touch_device_id_in, int pointer_finger_id_in, int action, float x, float y, float p)
  {
      SDL_TouchID touchDeviceId = 0;
      SDL_FingerID fingerId = 0;
  
      if (!window) {
          return;
      }
  
      touchDeviceId = (SDL_TouchID)touch_device_id_in;
      if (SDL_AddTouch(touchDeviceId, SDL_TOUCH_DEVICE_DIRECT, "") < 0) {
          SDL_Log("error: can't add touch %s, %d", __FILE__, __LINE__);
      }
  
      fingerId = (SDL_FingerID)pointer_finger_id_in;
      switch (action) {
          case ACTION_DOWN:
          case ACTION_POINTER_DOWN:
              SDL_SendTouch(touchDeviceId, fingerId, window, SDL_TRUE, x, y, p);
              break;
  
          case ACTION_MOVE:
              SDL_SendTouchMotion(touchDeviceId, fingerId, window, x, y, p);
              break;
  
          case ACTION_UP:
          case ACTION_POINTER_UP:
              SDL_SendTouch(touchDeviceId, fingerId, window, SDL_FALSE, x, y, p);
              break;
  
          default:
              break;
      }
  }
  
  #endif /* SDL_VIDEO_DRIVER_ANDROID */
  
  /* vi: set ts=4 sw=4 expandtab: */
  

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